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Commit a12f66fc authored by Linus Torvalds's avatar Linus Torvalds
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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (35 commits)
  Input: wistron - add support for Acer TravelMate 2424NWXCi
  Input: wistron - fix setting up special buttons
  Input: add KEY_BLUETOOTH and KEY_WLAN definitions
  Input: add new BUS_VIRTUAL bus type
  Input: add driver for stowaway serial keyboards
  Input: make input_register_handler() return error codes
  Input: remove cruft that was needed for transition to sysfs
  Input: fix input module refcounting
  Input: constify input core
  Input: libps2 - rearrange exports
  Input: atkbd - support Microsoft Natural Elite Pro keyboards
  Input: i8042 - disable MUX mode on Toshiba Equium A110
  Input: i8042 - get rid of polling timer
  Input: send key up events at disconnect
  Input: constify psmouse driver
  Input: i8042 - add Amoi to the MUX blacklist
  Input: logips2pp - add sugnature 56 (Cordless MouseMan Wheel), cleanup
  Input: add driver for Touchwin serial touchscreens
  Input: add driver for Touchright serial touchscreens
  Input: add driver for Penmount serial touchscreens
  ...
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Documentation/input/ff.txt
View file @ a12f66fc
Force feedback for Linux.
By Johann Deneux <deneux@ifrance.com> on 2001/04/22.
Updated by Anssi Hannula <anssi.hannula@gmail.com> on 2006/04/09.
You may redistribute this file. Please remember to include shape.fig and
interactive.fig as well.
----------------------------------------------------------------------------
0. Introduction
1. Introduction
~~~~~~~~~~~~~~~
This document describes how to use force feedback devices under Linux. The
goal is not to support these devices as if they were simple input-only devices
(as it is already the case), but to really enable the rendering of force
effects.
At the moment, only I-Force devices are supported, and not officially. That
means I had to find out how the protocol works on my own. Of course, the
information I managed to grasp is far from being complete, and I can not
guarranty that this driver will work for you.
This document only describes the force feedback part of the driver for I-Force
devices. Please read joystick.txt before reading further this document.
This document only describes the force feedback part of the Linux input
interface. Please read joystick.txt and input.txt before reading further this
document.
2. Instructions to the user
~~~~~~~~~~~~~~~~~~~~~~~~~~~
Here are instructions on how to compile and use the driver. In fact, this
driver is the normal iforce, input and evdev drivers written by Vojtech
Pavlik, plus additions to support force feedback.
To enable force feedback, you have to:
1. have your kernel configured with evdev and a driver that supports your
device.
2. make sure evdev module is loaded and /dev/input/event* device files are
created.
Before you start, let me WARN you that some devices shake violently during the
initialisation phase. This happens for example with my "AVB Top Shot Pegasus".
To stop this annoying behaviour, move you joystick to its limits. Anyway, you
should keep a hand on your device, in order to avoid it to brake down if
should keep a hand on your device, in order to avoid it to break down if
something goes wrong.
At the kernel's compilation:
- Enable IForce/Serial
- Enable Event interface
Compile the modules, install them.
You also need inputattach.
You then need to insert the modules into the following order:
% modprobe joydev
% modprobe serport # Only for serial
% modprobe iforce
% modprobe evdev
% ./inputattach -ifor $2 & # Only for serial
If you are using USB, you don't need the inputattach step.
Please check that you have all the /dev/input entries needed:
cd /dev
rm js*
mkdir input
mknod input/js0 c 13 0
mknod input/js1 c 13 1
mknod input/js2 c 13 2
mknod input/js3 c 13 3
ln -s input/js0 js0
ln -s input/js1 js1
ln -s input/js2 js2
ln -s input/js3 js3
mknod input/event0 c 13 64
mknod input/event1 c 13 65
mknod input/event2 c 13 66
mknod input/event3 c 13 67
If you have a serial iforce device, you need to start inputattach. See
joystick.txt for details.
2.1 Does it work ?
~~~~~~~~~~~~~~~~~~
......@@ -70,9 +40,9 @@ There is an utility called fftest that will allow you to test the driver.
3. Instructions to the developper
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
All interactions are done using the event API. That is, you can use ioctl()
All interactions are done using the event API. That is, you can use ioctl()
and write() on /dev/input/eventXX.
This information is subject to change.
This information is subject to change.
3.1 Querying device capabilities
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
......@@ -86,18 +56,29 @@ int ioctl(int file_descriptor, int request, unsigned long *features);
Returns the features supported by the device. features is a bitfield with the
following bits:
- FF_X has an X axis (usually joysticks)
- FF_Y has an Y axis (usually joysticks)
- FF_WHEEL has a wheel (usually sterring wheels)
- FF_CONSTANT can render constant force effects
- FF_PERIODIC can render periodic effects (sine, triangle, square...)
- FF_PERIODIC can render periodic effects with the following waveforms:
- FF_SQUARE square waveform
- FF_TRIANGLE triangle waveform
- FF_SINE sine waveform
- FF_SAW_UP sawtooth up waveform
- FF_SAW_DOWN sawtooth down waveform
- FF_CUSTOM custom waveform
- FF_RAMP can render ramp effects
- FF_SPRING can simulate the presence of a spring
- FF_FRICTION can simulate friction
- FF_FRICTION can simulate friction
- FF_DAMPER can simulate damper effects
- FF_RUMBLE rumble effects (normally the only effect supported by rumble
pads)
- FF_RUMBLE rumble effects
- FF_INERTIA can simulate inertia
- FF_GAIN gain is adjustable
- FF_AUTOCENTER autocenter is adjustable
Note: In most cases you should use FF_PERIODIC instead of FF_RUMBLE. All
devices that support FF_RUMBLE support FF_PERIODIC (square, triangle,
sine) and the other way around.
Note: The exact syntax FF_CUSTOM is undefined for the time being as no driver
supports it yet.
int ioctl(int fd, EVIOCGEFFECTS, int *n);
......@@ -108,7 +89,7 @@ Returns the number of effects the device can keep in its memory.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#include <linux/input.h>
#include <sys/ioctl.h>
int ioctl(int file_descriptor, int request, struct ff_effect *effect);
"request" must be EVIOCSFF.
......@@ -120,6 +101,9 @@ to the unique id assigned by the driver. This data is required for performing
some operations (removing an effect, controlling the playback).
This if field must be set to -1 by the user in order to tell the driver to
allocate a new effect.
Effects are file descriptor specific.
See <linux/input.h> for a description of the ff_effect struct. You should also
find help in a few sketches, contained in files shape.fig and interactive.fig.
You need xfig to visualize these files.
......@@ -128,8 +112,8 @@ You need xfig to visualize these files.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
int ioctl(int fd, EVIOCRMFF, effect.id);
This makes room for new effects in the device's memory. Please note this won't
stop the effect if it was playing.
This makes room for new effects in the device's memory. Note that this also
stops the effect if it was playing.
3.4 Controlling the playback of effects
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
......@@ -149,22 +133,21 @@ Control of playing is done with write(). Below is an example:
play.type = EV_FF;
play.code = effect.id;
play.value = 3;
write(fd, (const void*) &play, sizeof(play));
...
/* Stop an effect */
stop.type = EV_FF;
stop.code = effect.id;
stop.value = 0;
write(fd, (const void*) &play, sizeof(stop));
3.5 Setting the gain
~~~~~~~~~~~~~~~~~~~~
Not all devices have the same strength. Therefore, users should set a gain
factor depending on how strong they want effects to be. This setting is
persistent across access to the driver, so you should not care about it if
you are writing games, as another utility probably already set this for you.
persistent across access to the driver.
/* Set the gain of the device
int gain; /* between 0 and 100 */
......@@ -204,11 +187,14 @@ type of device, not all parameters can be dynamically updated. For example,
the direction of an effect cannot be updated with iforce devices. In this
case, the driver stops the effect, up-load it, and restart it.
Therefore it is recommended to dynamically change direction while the effect
is playing only when it is ok to restart the effect with a replay count of 1.
3.8 Information about the status of effects
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Every time the status of an effect is changed, an event is sent. The values
and meanings of the fields of the event are as follows:
struct input_event {
/* When the status of the effect changed */
struct timeval time;
......@@ -225,3 +211,9 @@ struct input_event {
FF_STATUS_STOPPED The effect stopped playing
FF_STATUS_PLAYING The effect started to play
NOTE: Status feedback is only supported by iforce driver. If you have
a really good reason to use this, please contact
linux-joystick@atrey.karlin.mff.cuni.cz or anssi.hannula@gmail.com
so that support for it can be added to the rest of the drivers.
drivers/char/keyboard.c
View file @ a12f66fc
......@@ -1293,7 +1293,7 @@ static void kbd_event(struct input_handle *handle, unsigned int event_type,
*/
static struct input_handle *kbd_connect(struct input_handler *handler,
struct input_dev *dev,
struct input_device_id *id)
const struct input_device_id *id)
{
struct input_handle *handle;
int i;
......@@ -1342,7 +1342,7 @@ static void kbd_start(struct input_handle *handle)
tasklet_enable(&keyboard_tasklet);
}
static struct input_device_id kbd_ids[] = {
static const struct input_device_id kbd_ids[] = {
{
.flags = INPUT_DEVICE_ID_MATCH_EVBIT,
.evbit = { BIT(EV_KEY) },
......@@ -1370,6 +1370,7 @@ static struct input_handler kbd_handler = {
int __init kbd_init(void)
{
int i;
int error;
for (i = 0; i < MAX_NR_CONSOLES; i++) {
kbd_table[i].ledflagstate = KBD_DEFLEDS;
......@@ -1381,7 +1382,9 @@ int __init kbd_init(void)
kbd_table[i].kbdmode = VC_XLATE;
}
input_register_handler(&kbd_handler);
error = input_register_handler(&kbd_handler);
if (error)
return error;
tasklet_enable(&keyboard_tasklet);
tasklet_schedule(&keyboard_tasklet);
......
drivers/input/Kconfig
View file @ a12f66fc
......@@ -24,6 +24,20 @@ config INPUT
if INPUT
config INPUT_FF_MEMLESS
tristate "Support for memoryless force-feedback devices"
default n
---help---
Say Y here if you have memoryless force-feedback input device
such as Logitech WingMan Force 3D, ThrustMaster FireStorm Dual
Power 2, or similar. You will also need to enable hardware-specific
driver.
If unsure, say N.
To compile this driver as a module, choose M here: the
module will be called ff-memless.
comment "Userland interfaces"
config INPUT_MOUSEDEV
......
drivers/input/Makefile
View file @ a12f66fc
......@@ -4,7 +4,11 @@
# Each configuration option enables a list of files.
obj-$(CONFIG_INPUT) += input.o
obj-$(CONFIG_INPUT) += input-core.o
input-core-objs := input.o ff-core.o
obj-$(CONFIG_INPUT_FF_MEMLESS) += ff-memless.o
obj-$(CONFIG_INPUT_MOUSEDEV) += mousedev.o
obj-$(CONFIG_INPUT_JOYDEV) += joydev.o
obj-$(CONFIG_INPUT_EVDEV) += evdev.o
......
drivers/input/evbug.c
View file @ a12f66fc
......@@ -42,10 +42,12 @@ static char evbug_name[] = "evbug";
static void evbug_event(struct input_handle *handle, unsigned int type, unsigned int code, int value)
{
printk(KERN_DEBUG "evbug.c: Event. Dev: %s, Type: %d, Code: %d, Value: %d\n", handle->dev->phys, type, code, value);
printk(KERN_DEBUG "evbug.c: Event. Dev: %s, Type: %d, Code: %d, Value: %d\n",
handle->dev->phys, type, code, value);
}
static struct input_handle *evbug_connect(struct input_handler *handler, struct input_dev *dev, struct input_device_id *id)
static struct input_handle *evbug_connect(struct input_handler *handler, struct input_dev *dev,
const struct input_device_id *id)
{
struct input_handle *handle;
......@@ -72,7 +74,7 @@ static void evbug_disconnect(struct input_handle *handle)
kfree(handle);
}
static struct input_device_id evbug_ids[] = {
static const struct input_device_id evbug_ids[] = {
{ .driver_info = 1 }, /* Matches all devices */
{ }, /* Terminating zero entry */
};
......@@ -89,8 +91,7 @@ static struct input_handler evbug_handler = {
static int __init evbug_init(void)
{
input_register_handler(&evbug_handler);
return 0;
return input_register_handler(&evbug_handler);
}
static void __exit evbug_exit(void)
......
drivers/input/evdev.c
View file @ a12f66fc
......@@ -391,8 +391,10 @@ static long evdev_ioctl_handler(struct file *file, unsigned int cmd,
struct evdev *evdev = list->evdev;
struct input_dev *dev = evdev->handle.dev;
struct input_absinfo abs;
struct ff_effect effect;
int __user *ip = (int __user *)p;
int i, t, u, v;
int error;
if (!evdev->exist)
return -ENODEV;
......@@ -460,27 +462,22 @@ static long evdev_ioctl_handler(struct file *file, unsigned int cmd,
return 0;
case EVIOCSFF:
if (dev->upload_effect) {
struct ff_effect effect;
int err;
if (copy_from_user(&effect, p, sizeof(effect)))
return -EFAULT;
err = dev->upload_effect(dev, &effect);
if (put_user(effect.id, &(((struct ff_effect __user *)p)->id)))
return -EFAULT;
return err;
} else
return -ENOSYS;
if (copy_from_user(&effect, p, sizeof(effect)))
return -EFAULT;
case EVIOCRMFF:
if (!dev->erase_effect)
return -ENOSYS;
error = input_ff_upload(dev, &effect, file);
return dev->erase_effect(dev, (int)(unsigned long) p);
if (put_user(effect.id, &(((struct ff_effect __user *)p)->id)))
return -EFAULT;
return error;
case EVIOCRMFF:
return input_ff_erase(dev, (int)(unsigned long) p, file);
case EVIOCGEFFECTS:
if (put_user(dev->ff_effects_max, ip))
i = test_bit(EV_FF, dev->evbit) ? dev->ff->max_effects : 0;
if (put_user(i, ip))
return -EFAULT;
return 0;
......@@ -604,7 +601,7 @@ static long evdev_ioctl_compat(struct file *file, unsigned int cmd, unsigned lon
}
#endif
static struct file_operations evdev_fops = {
static const struct file_operations evdev_fops = {
.owner = THIS_MODULE,
.read = evdev_read,
.write = evdev_write,
......@@ -619,7 +616,8 @@ static struct file_operations evdev_fops = {
.flush = evdev_flush
};
static struct input_handle *evdev_connect(struct input_handler *handler, struct input_dev *dev, struct input_device_id *id)
static struct input_handle *evdev_connect(struct input_handler *handler, struct input_dev *dev,
const struct input_device_id *id)
{
struct evdev *evdev;
struct class_device *cdev;
......@@ -669,6 +667,7 @@ static void evdev_disconnect(struct input_handle *handle)
evdev->exist = 0;
if (evdev->open) {
input_flush_device(handle, NULL);
input_close_device(handle);
wake_up_interruptible(&evdev->wait);
list_for_each_entry(list, &evdev->list, node)
......@@ -677,7 +676,7 @@ static void evdev_disconnect(struct input_handle *handle)
evdev_free(evdev);
}
static struct input_device_id evdev_ids[] = {
static const struct input_device_id evdev_ids[] = {
{ .driver_info = 1 }, /* Matches all devices */
{ }, /* Terminating zero entry */
};
......@@ -696,8 +695,7 @@ static struct input_handler evdev_handler = {
static int __init evdev_init(void)
{
input_register_handler(&evdev_handler);
return 0;
return input_register_handler(&evdev_handler);
}
static void __exit evdev_exit(void)
......
drivers/input/ff-core.c 0 → 100644
View file @ a12f66fc
/*
* Force feedback support for Linux input subsystem
*
* Copyright (c) 2006 Anssi Hannula <anssi.hannula@gmail.com>
* Copyright (c) 2006 Dmitry Torokhov <dtor@mail.ru>
*/
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* #define DEBUG */
#define debug(format, arg...) pr_debug("ff-core: " format "\n", ## arg)
#include <linux/input.h>
#include <linux/module.h>
#include <linux/mutex.h>
/*
* Check that the effect_id is a valid effect and whether the user
* is the owner
*/
static int check_effect_access(struct ff_device *ff, int effect_id,
struct file *file)
{
if (effect_id < 0 || effect_id >= ff->max_effects ||
!ff->effect_owners[effect_id])
return -EINVAL;
if (file && ff->effect_owners[effect_id] != file)
return -EACCES;
return 0;
}
/*
* Checks whether 2 effects can be combined together
*/
static inline int check_effects_compatible(struct ff_effect *e1,
struct ff_effect *e2)
{
return e1->type == e2->type &&
(e1->type != FF_PERIODIC ||
e1->u.periodic.waveform == e2->u.periodic.waveform);
}
/*
* Convert an effect into compatible one
*/
static int compat_effect(struct ff_device *ff, struct ff_effect *effect)
{
int magnitude;
switch (effect->type) {
case FF_RUMBLE:
if (!test_bit(FF_PERIODIC, ff->ffbit))
return -EINVAL;
/*
* calculate manginude of sine wave as average of rumble's
* 2/3 of strong magnitude and 1/3 of weak magnitude
*/
magnitude = effect->u.rumble.strong_magnitude / 3 +
effect->u.rumble.weak_magnitude / 6;
effect->type = FF_PERIODIC;
effect->u.periodic.waveform = FF_SINE;
effect->u.periodic.period = 50;
effect->u.periodic.magnitude = max(magnitude, 0x7fff);
effect->u.periodic.offset = 0;
effect->u.periodic.phase = 0;
effect->u.periodic.envelope.attack_length = 0;
effect->u.periodic.envelope.attack_level = 0;
effect->u.periodic.envelope.fade_length = 0;
effect->u.periodic.envelope.fade_level = 0;
return 0;
default:
/* Let driver handle conversion */
return 0;
}
}
/**
* input_ff_upload() - upload effect into force-feedback device
* @dev: input device
* @effect: effect to be uploaded
* @file: owner of the effect
*/
int input_ff_upload(struct input_dev *dev, struct ff_effect *effect,
struct file *file)
{
struct ff_device *ff = dev->ff;
struct ff_effect *old;
int ret = 0;
int id;
if (!test_bit(EV_FF, dev->evbit))
return -ENOSYS;
if (effect->type < FF_EFFECT_MIN || effect->type > FF_EFFECT_MAX ||
!test_bit(effect->type, dev->ffbit)) {
debug("invalid or not supported effect type in upload");
return -EINVAL;
}
if (effect->type == FF_PERIODIC &&
(effect->u.periodic.waveform < FF_WAVEFORM_MIN ||
effect->u.periodic.waveform > FF_WAVEFORM_MAX ||
!test_bit(effect->u.periodic.waveform, dev->ffbit))) {
debug("invalid or not supported wave form in upload");
return -EINVAL;
}
if (!test_bit(effect->type, ff->ffbit)) {
ret = compat_effect(ff, effect);
if (ret)
return ret;
}
mutex_lock(&ff->mutex);
if (effect->id == -1) {
for (id = 0; id < ff->max_effects; id++)
if (!ff->effect_owners[id])
break;
if (id >= ff->max_effects) {
ret = -ENOSPC;
goto out;
}
effect->id = id;
old = NULL;
} else {
id = effect->id;
ret = check_effect_access(ff, id, file);
if (ret)
goto out;
old = &ff->effects[id];
if (!check_effects_compatible(effect, old)) {
ret = -EINVAL;
goto out;
}
}
ret = ff->upload(dev, effect, old);
if (ret)
goto out;
ff->effects[id] = *effect;
ff->effect_owners[id] = file;
out:
mutex_unlock(&ff->mutex);
return ret;
}
EXPORT_SYMBOL_GPL(input_ff_upload);
/*
* Erases the effect if the requester is also the effect owner. The mutex
* should already be locked before calling this function.
*/
static int erase_effect(struct input_dev *dev, int effect_id,
struct file *file)
{
struct ff_device *ff = dev->ff;
int error;
error = check_effect_access(ff, effect_id, file);
if (error)
return error;
ff->playback(dev, effect_id, 0);
if (ff->erase) {
error = ff->erase(dev, effect_id);
if (error)
return error;
}
ff->effect_owners[effect_id] = NULL;
return 0;
}
/**
* input_ff_erase - erase an effect from device
* @dev: input device to erase effect from
* @effect_id: id of the ffect to be erased
* @file: purported owner of the request
*
* This function erases a force-feedback effect from specified device.
* The effect will only be erased if it was uploaded through the same
* file handle that is requesting erase.
*/
int input_ff_erase(struct input_dev *dev, int effect_id, struct file *file)
{
struct ff_device *ff = dev->ff;
int ret;
if (!test_bit(EV_FF, dev->evbit))
return -ENOSYS;
mutex_lock(&ff->mutex);
ret = erase_effect(dev, effect_id, file);
mutex_unlock(&ff->mutex);
return ret;
}
EXPORT_SYMBOL_GPL(input_ff_erase);
/*
* flush_effects - erase all effects owned by a file handle
*/
static int flush_effects(struct input_dev *dev, struct file *file)
{
struct ff_device *ff = dev->ff;
int i;
debug("flushing now");
mutex_lock(&ff->mutex);
for (i = 0; i < ff->max_effects; i++)
erase_effect(dev, i, file);
mutex_unlock(&ff->mutex);
return 0;
}
/**
* input_ff_event() - generic handler for force-feedback events
* @dev: input device to send the effect to
* @type: event type (anything but EV_FF is ignored)
* @code: event code
* @value: event value
*/
int input_ff_event(struct input_dev *dev, unsigned int type,
unsigned int code, int value)
{
struct ff_device *ff = dev->ff;
if (type != EV_FF)
return 0;
mutex_lock(&ff->mutex);
switch (code) {
case FF_GAIN:
if (!test_bit(FF_GAIN, dev->ffbit) || value > 0xffff)
break;
ff->set_gain(dev, value);
break;
case FF_AUTOCENTER:
if (!test_bit(FF_AUTOCENTER, dev->ffbit) || value > 0xffff)
break;
ff->set_autocenter(dev, value);
break;
default:
ff->playback(dev, code, value);
break;
}
mutex_unlock(&ff->mutex);
return 0;
}
EXPORT_SYMBOL_GPL(input_ff_event);
/**
* input_ff_create() - create force-feedback device
* @dev: input device supporting force-feedback
* @max_effects: maximum number of effects supported by the device
*
* This function allocates all necessary memory for a force feedback
* portion of an input device and installs all default handlers.
* @dev->ffbit should be already set up before calling this function.
* Once ff device is created you need to setup its upload, erase,
* playback and other handlers before registering input device
*/
int input_ff_create(struct input_dev *dev, int max_effects)
{
struct ff_device *ff;
int i;
if (!max_effects) {
printk(KERN_ERR
"ff-core: cannot allocate device without any effects\n");
return -EINVAL;
}
ff = kzalloc(sizeof(struct ff_device) +
max_effects * sizeof(struct file *), GFP_KERNEL);
if (!ff)
return -ENOMEM;
ff->effects = kcalloc(max_effects, sizeof(struct ff_effect),
GFP_KERNEL);
if (!ff->effects) {
kfree(ff);
return -ENOMEM;
}
ff->max_effects = max_effects;
mutex_init(&ff->mutex);
dev->ff = ff;
dev->flush = flush_effects;
dev->event = input_ff_event;
set_bit(EV_FF, dev->evbit);
/* Copy "true" bits into ff device bitmap */
for (i = 0; i <= FF_MAX; i++)
if (test_bit(i, dev->ffbit))
set_bit(i, ff->ffbit);
/* we can emulate RUMBLE with periodic effects */
if (test_bit(FF_PERIODIC, ff->ffbit))
set_bit(FF_RUMBLE, dev->ffbit);
return 0;
}
EXPORT_SYMBOL_GPL(input_ff_create);
/**
* input_ff_free() - frees force feedback portion of input device
* @dev: input device supporintg force feedback
*
* This function is only needed in error path as input core will
* automatically free force feedback structures when device is
* destroyed.
*/
void input_ff_destroy(struct input_dev *dev)
{
clear_bit(EV_FF, dev->evbit);
if (dev->ff) {
if (dev->ff->destroy)
dev->ff->destroy(dev->ff);
kfree(dev->ff->private);
kfree(dev->ff);
dev->ff = NULL;
}
}
EXPORT_SYMBOL_GPL(input_ff_destroy);
drivers/input/ff-memless.c 0 → 100644
View file @ a12f66fc
/*
* Force feedback support for memoryless devices
*
* Copyright (c) 2006 Anssi Hannula <anssi.hannula@gmail.com>
* Copyright (c) 2006 Dmitry Torokhov <dtor@mail.ru>
*/
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* #define DEBUG */
#define debug(format, arg...) pr_debug("ff-memless: " format "\n", ## arg)
#include <linux/input.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/spinlock.h>
#include <linux/sched.h>
#include "fixp-arith.h"
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Anssi Hannula <anssi.hannula@gmail.com>");
MODULE_DESCRIPTION("Force feedback support for memoryless devices");
/* Number of effects handled with memoryless devices */
#define FF_MEMLESS_EFFECTS 16
/* Envelope update interval in ms */
#define FF_ENVELOPE_INTERVAL 50
#define FF_EFFECT_STARTED 0
#define FF_EFFECT_PLAYING 1
#define FF_EFFECT_ABORTING 2
struct ml_effect_state {
struct ff_effect *effect;
unsigned long flags; /* effect state (STARTED, PLAYING, etc) */
int count; /* loop count of the effect */
unsigned long play_at; /* start time */
unsigned long stop_at; /* stop time */
unsigned long adj_at; /* last time the effect was sent */
};
struct ml_device {
void *private;
struct ml_effect_state states[FF_MEMLESS_EFFECTS];
int gain;
struct timer_list timer;
spinlock_t timer_lock;
struct input_dev *dev;
int (*play_effect)(struct input_dev *dev, void *data,
struct ff_effect *effect);
};
static const struct ff_envelope *get_envelope(const struct ff_effect *effect)
{
static const struct ff_envelope empty_envelope;
switch (effect->type) {
case FF_PERIODIC:
return &effect->u.periodic.envelope;
case FF_CONSTANT:
return &effect->u.constant.envelope;
default:
return &empty_envelope;
}
}
/*
* Check for the next time envelope requires an update on memoryless devices
*/
static unsigned long calculate_next_time(struct ml_effect_state *state)
{
const struct ff_envelope *envelope = get_envelope(state->effect);
unsigned long attack_stop, fade_start, next_fade;
if (envelope->attack_length) {
attack_stop = state->play_at +
msecs_to_jiffies(envelope->attack_length);
if (time_before(state->adj_at, attack_stop))
return state->adj_at +
msecs_to_jiffies(FF_ENVELOPE_INTERVAL);
}
if (state->effect->replay.length) {
if (envelope->fade_length) {
/* check when fading should start */
fade_start = state->stop_at -
msecs_to_jiffies(envelope->fade_length);
if (time_before(state->adj_at, fade_start))
return fade_start;
/* already fading, advance to next checkpoint */
next_fade = state->adj_at +
msecs_to_jiffies(FF_ENVELOPE_INTERVAL);
if (time_before(next_fade, state->stop_at))
return next_fade;
}
return state->stop_at;
}
return state->play_at;
}
static void ml_schedule_timer(struct ml_device *ml)
{
struct ml_effect_state *state;
unsigned long now = jiffies;
unsigned long earliest = 0;
unsigned long next_at;
int events = 0;
int i;
debug("calculating next timer");
for (i = 0; i < FF_MEMLESS_EFFECTS; i++) {
state = &ml->states[i];
if (!test_bit(FF_EFFECT_STARTED, &state->flags))
continue;
if (test_bit(FF_EFFECT_PLAYING, &state->flags))
next_at = calculate_next_time(state);
else
next_at = state->play_at;
if (time_before_eq(now, next_at) &&
(++events == 1 || time_before(next_at, earliest)))
earliest = next_at;
}
if (!events) {
debug("no actions");
del_timer(&ml->timer);
} else {
debug("timer set");
mod_timer(&ml->timer, earliest);
}
}
/*
* Apply an envelope to a value
*/
static int apply_envelope(struct ml_effect_state *state, int value,
struct ff_envelope *envelope)
{
struct ff_effect *effect = state->effect;
unsigned long now = jiffies;
int time_from_level;
int time_of_envelope;
int envelope_level;
int difference;
if (envelope->attack_length &&
time_before(now,
state->play_at + msecs_to_jiffies(envelope->attack_length))) {
debug("value = 0x%x, attack_level = 0x%x", value,
envelope->attack_level);
time_from_level = jiffies_to_msecs(now - state->play_at);
time_of_envelope = envelope->attack_length;
envelope_level = min_t(__s16, envelope->attack_level, 0x7fff);
} else if (envelope->fade_length && effect->replay.length &&
time_after(now,
state->stop_at - msecs_to_jiffies(envelope->fade_length)) &&
time_before(now, state->stop_at)) {
time_from_level = jiffies_to_msecs(state->stop_at - now);
time_of_envelope = envelope->fade_length;
envelope_level = min_t(__s16, envelope->fade_level, 0x7fff);
} else
return value;
difference = abs(value) - envelope_level;
debug("difference = %d", difference);
debug("time_from_level = 0x%x", time_from_level);
debug("time_of_envelope = 0x%x", time_of_envelope);
difference = difference * time_from_level / time_of_envelope;
debug("difference = %d", difference);
return value < 0 ?
-(difference + envelope_level) : (difference + envelope_level);
}
/*
* Return the type the effect has to be converted into (memless devices)
*/
static int get_compatible_type(struct ff_device *ff, int effect_type)
{
if (test_bit(effect_type, ff->ffbit))
return effect_type;
if (effect_type == FF_PERIODIC && test_bit(FF_RUMBLE, ff->ffbit))
return FF_RUMBLE;
printk(KERN_ERR
"ff-memless: invalid type in get_compatible_type()\n");
return 0;
}
/*
* Combine two effects and apply gain.
*/
static void ml_combine_effects(struct ff_effect *effect,
struct ml_effect_state *state,
int gain)
{
struct ff_effect *new = state->effect;
unsigned int strong, weak, i;
int x, y;
fixp_t level;
switch (new->type) {
case FF_CONSTANT:
i = new->direction * 360 / 0xffff;
level = fixp_new16(apply_envelope(state,
new->u.constant.level,
&new->u.constant.envelope));
x = fixp_mult(fixp_sin(i), level) * gain / 0xffff;
y = fixp_mult(-fixp_cos(i), level) * gain / 0xffff;
/*
* here we abuse ff_ramp to hold x and y of constant force
* If in future any driver wants something else than x and y
* in s8, this should be changed to something more generic
*/
effect->u.ramp.start_level =
max(min(effect->u.ramp.start_level + x, 0x7f), -0x80);
effect->u.ramp.end_level =
max(min(effect->u.ramp.end_level + y, 0x7f), -0x80);
break;
case FF_RUMBLE:
strong = new->u.rumble.strong_magnitude * gain / 0xffff;
weak = new->u.rumble.weak_magnitude * gain / 0xffff;
effect->u.rumble.strong_magnitude =
min(strong + effect->u.rumble.strong_magnitude,
0xffffU);
effect->u.rumble.weak_magnitude =
min(weak + effect->u.rumble.weak_magnitude, 0xffffU);
break;
case FF_PERIODIC:
i = apply_envelope(state, abs(new->u.periodic.magnitude),
&new->u.periodic.envelope);
/* here we also scale it 0x7fff => 0xffff */
i = i * gain / 0x7fff;
effect->u.rumble.strong_magnitude =
min(i + effect->u.rumble.strong_magnitude, 0xffffU);
effect->u.rumble.weak_magnitude =
min(i + effect->u.rumble.weak_magnitude, 0xffffU);
break;
default:
printk(KERN_ERR "ff-memless: invalid type in ml_combine_effects()\n");
break;
}
}
/*
* Because memoryless devices have only one effect per effect type active
* at one time we have to combine multiple effects into one
*/
static int ml_get_combo_effect(struct ml_device *ml,
unsigned long *effect_handled,
struct ff_effect *combo_effect)
{
struct ff_effect *effect;
struct ml_effect_state *state;
int effect_type;
int i;
memset(combo_effect, 0, sizeof(struct ff_effect));
for (i = 0; i < FF_MEMLESS_EFFECTS; i++) {
if (__test_and_set_bit(i, effect_handled))
continue;
state = &ml->states[i];
effect = state->effect;
if (!test_bit(FF_EFFECT_STARTED, &state->flags))
continue;
if (time_before(jiffies, state->play_at))
continue;
/*
* here we have started effects that are either
* currently playing (and may need be aborted)
* or need to start playing.
*/
effect_type = get_compatible_type(ml->dev->ff, effect->type);
if (combo_effect->type != effect_type) {
if (combo_effect->type != 0) {
__clear_bit(i, effect_handled);
continue;
}
combo_effect->type = effect_type;
}
if (__test_and_clear_bit(FF_EFFECT_ABORTING, &state->flags)) {
__clear_bit(FF_EFFECT_PLAYING, &state->flags);
__clear_bit(FF_EFFECT_STARTED, &state->flags);
} else if (effect->replay.length &&
time_after_eq(jiffies, state->stop_at)) {
__clear_bit(FF_EFFECT_PLAYING, &state->flags);
if (--state->count <= 0) {
__clear_bit(FF_EFFECT_STARTED, &state->flags);
} else {
state->play_at = jiffies +
msecs_to_jiffies(effect->replay.delay);
state->stop_at = state->play_at +
msecs_to_jiffies(effect->replay.length);
}
} else {
__set_bit(FF_EFFECT_PLAYING, &state->flags);
state->adj_at = jiffies;
ml_combine_effects(combo_effect, state, ml->gain);
}
}
return combo_effect->type != 0;
}
static void ml_play_effects(struct ml_device *ml)
{
struct ff_effect effect;
DECLARE_BITMAP(handled_bm, FF_MEMLESS_EFFECTS);
memset(handled_bm, 0, sizeof(handled_bm));
while (ml_get_combo_effect(ml, handled_bm, &effect))
ml->play_effect(ml->dev, ml->private, &effect);
ml_schedule_timer(ml);
}
static void ml_effect_timer(unsigned long timer_data)
{
struct input_dev *dev = (struct input_dev *)timer_data;
struct ml_device *ml = dev->ff->private;
debug("timer: updating effects");
spin_lock(&ml->timer_lock);
ml_play_effects(ml);
spin_unlock(&ml->timer_lock);
}
static void ml_ff_set_gain(struct input_dev *dev, u16 gain)
{
struct ml_device *ml = dev->ff->private;
int i;
spin_lock_bh(&ml->timer_lock);
ml->gain = gain;
for (i = 0; i < FF_MEMLESS_EFFECTS; i++)
__clear_bit(FF_EFFECT_PLAYING, &ml->states[i].flags);
ml_play_effects(ml);
spin_unlock_bh(&ml->timer_lock);
}
static int ml_ff_playback(struct input_dev *dev, int effect_id, int value)
{
struct ml_device *ml = dev->ff->private;
struct ml_effect_state *state = &ml->states[effect_id];
spin_lock_bh(&ml->timer_lock);
if (value > 0) {
debug("initiated play");
__set_bit(FF_EFFECT_STARTED, &state->flags);
state->count = value;
state->play_at = jiffies +
msecs_to_jiffies(state->effect->replay.delay);
state->stop_at = state->play_at +
msecs_to_jiffies(state->effect->replay.length);
state->adj_at = state->play_at;
ml_schedule_timer(ml);
} else {
debug("initiated stop");
if (test_bit(FF_EFFECT_PLAYING, &state->flags))
__set_bit(FF_EFFECT_ABORTING, &state->flags);
else
__clear_bit(FF_EFFECT_STARTED, &state->flags);
ml_play_effects(ml);
}
spin_unlock_bh(&ml->timer_lock);
return 0;
}
static int ml_ff_upload(struct input_dev *dev,
struct ff_effect *effect, struct ff_effect *old)
{
struct ml_device *ml = dev->ff->private;
struct ml_effect_state *state = &ml->states[effect->id];
spin_lock_bh(&ml->timer_lock);
if (test_bit(FF_EFFECT_STARTED, &state->flags)) {
__clear_bit(FF_EFFECT_PLAYING, &state->flags);
state->play_at = jiffies +
msecs_to_jiffies(state->effect->replay.delay);
state->stop_at = state->play_at +
msecs_to_jiffies(state->effect->replay.length);
state->adj_at = state->play_at;
ml_schedule_timer(ml);
}
spin_unlock_bh(&ml->timer_lock);
return 0;
}
static void ml_ff_destroy(struct ff_device *ff)
{
struct ml_device *ml = ff->private;
kfree(ml->private);
}
/**
* input_ff_create_memless() - create memoryless FF device
* @dev: input device supporting force-feedback
* @data: driver-specific data to be passed into @play_effect
* @play_effect: driver-specific method for playing FF effect
*/
int input_ff_create_memless(struct input_dev *dev, void *data,
int (*play_effect)(struct input_dev *, void *, struct ff_effect *))
{
struct ml_device *ml;
struct ff_device *ff;
int error;
int i;
ml = kzalloc(sizeof(struct ml_device), GFP_KERNEL);
if (!ml)
return -ENOMEM;
ml->dev = dev;
ml->private = data;
ml->play_effect = play_effect;
ml->gain = 0xffff;
spin_lock_init(&ml->timer_lock);
setup_timer(&ml->timer, ml_effect_timer, (unsigned long)dev);
set_bit(FF_GAIN, dev->ffbit);
error = input_ff_create(dev, FF_MEMLESS_EFFECTS);
if (error) {
kfree(ml);
return error;
}
ff = dev->ff;
ff->private = ml;
ff->upload = ml_ff_upload;
ff->playback = ml_ff_playback;
ff->set_gain = ml_ff_set_gain;
ff->destroy = ml_ff_destroy;
/* we can emulate periodic effects with RUMBLE */
if (test_bit(FF_RUMBLE, ff->ffbit)) {
set_bit(FF_PERIODIC, dev->ffbit);
set_bit(FF_SINE, dev->ffbit);
set_bit(FF_TRIANGLE, dev->ffbit);
set_bit(FF_SQUARE, dev->ffbit);
}
for (i = 0; i < FF_MEMLESS_EFFECTS; i++)
ml->states[i].effect = &ff->effects[i];
return 0;
}
EXPORT_SYMBOL_GPL(input_ff_create_memless);
drivers/input/input.c
View file @ a12f66fc
......@@ -176,6 +176,10 @@ void input_event(struct input_dev *dev, unsigned int type, unsigned int code, in
break;
case EV_FF:
if (value < 0)
return;
if (dev->event)
dev->event(dev, type, code, value);
break;
......@@ -309,7 +313,8 @@ static void input_link_handle(struct input_handle *handle)
if (i != NBITS(max)) \
continue;
static struct input_device_id *input_match_device(struct input_device_id *id, struct input_dev *dev)
static const struct input_device_id *input_match_device(const struct input_device_id *id,
struct input_dev *dev)
{
int i;
......@@ -762,7 +767,9 @@ static void input_dev_release(struct class_device *class_dev)
{
struct input_dev *dev = to_input_dev(class_dev);
input_ff_destroy(dev);
kfree(dev);
module_put(THIS_MODULE);
}
......@@ -899,12 +906,13 @@ struct input_dev *input_allocate_device(void)
dev = kzalloc(sizeof(struct input_dev), GFP_KERNEL);
if (dev) {
dev->dynalloc = 1;
dev->cdev.class = &input_class;
class_device_initialize(&dev->cdev);
mutex_init(&dev->mutex);
INIT_LIST_HEAD(&dev->h_list);
INIT_LIST_HEAD(&dev->node);
__module_get(THIS_MODULE);
}
return dev;
......@@ -929,17 +937,10 @@ int input_register_device(struct input_dev *dev)
static atomic_t input_no = ATOMIC_INIT(0);
struct input_handle *handle;
struct input_handler *handler;
struct input_device_id *id;
const struct input_device_id *id;
const char *path;
int error;
if (!dev->dynalloc) {
printk(KERN_WARNING "input: device %s is statically allocated, will not register\n"
"Please convert to input_allocate_device() or contact dtor_core@ameritech.net\n",
dev->name ? dev->name : "<Unknown>");
return -EINVAL;
}
set_bit(EV_SYN, dev->evbit);
/*
......@@ -955,10 +956,8 @@ int input_register_device(struct input_dev *dev)
dev->rep[REP_PERIOD] = 33;
}
INIT_LIST_HEAD(&dev->h_list);
list_add_tail(&dev->node, &input_dev_list);
dev->cdev.class = &input_class;
snprintf(dev->cdev.class_id, sizeof(dev->cdev.class_id),
"input%ld", (unsigned long) atomic_inc_return(&input_no) - 1);
......@@ -978,8 +977,6 @@ int input_register_device(struct input_dev *dev)
if (error)
goto fail3;
__module_get(THIS_MODULE);
path = kobject_get_path(&dev->cdev.kobj, GFP_KERNEL);
printk(KERN_INFO "input: %s as %s\n",
dev->name ? dev->name : "Unspecified device", path ? path : "N/A");
......@@ -1008,9 +1005,12 @@ EXPORT_SYMBOL(input_register_device);
void input_unregister_device(struct input_dev *dev)
{
struct list_head *node, *next;
int code;
if (!dev)
return;
for (code = 0; code <= KEY_MAX; code++)
if (test_bit(code, dev->key))
input_report_key(dev, code, 0);
input_sync(dev);
del_timer_sync(&dev->timer);
......@@ -1037,19 +1037,20 @@ void input_unregister_device(struct input_dev *dev)
}
EXPORT_SYMBOL(input_unregister_device);
void input_register_handler(struct input_handler *handler)
int input_register_handler(struct input_handler *handler)
{
struct input_dev *dev;
struct input_handle *handle;
struct input_device_id *id;
if (!handler)
return;
const struct input_device_id *id;
INIT_LIST_HEAD(&handler->h_list);
if (handler->fops != NULL)
if (handler->fops != NULL) {
if (input_table[handler->minor >> 5])
return -EBUSY;
input_table[handler->minor >> 5] = handler;
}
list_add_tail(&handler->node, &input_handler_list);
......@@ -1063,6 +1064,7 @@ void input_register_handler(struct input_handler *handler)
}
input_wakeup_procfs_readers();
return 0;
}
EXPORT_SYMBOL(input_register_handler);
......
drivers/input/joydev.c
View file @ a12f66fc
......@@ -451,7 +451,7 @@ static int joydev_ioctl(struct inode *inode, struct file *file, unsigned int cmd
}
}
static struct file_operations joydev_fops = {
static const struct file_operations joydev_fops = {
.owner = THIS_MODULE,
.read = joydev_read,
.write = joydev_write,
......@@ -465,7 +465,8 @@ static struct file_operations joydev_fops = {
.fasync = joydev_fasync,
};
static struct input_handle *joydev_connect(struct input_handler *handler, struct input_dev *dev, struct input_device_id *id)
static struct input_handle *joydev_connect(struct input_handler *handler, struct input_dev *dev,
const struct input_device_id *id)
{
struct joydev *joydev;
struct class_device *cdev;
......@@ -562,7 +563,7 @@ static void joydev_disconnect(struct input_handle *handle)
joydev_free(joydev);
}
static struct input_device_id joydev_blacklist[] = {
static const struct input_device_id joydev_blacklist[] = {
{
.flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT,
.evbit = { BIT(EV_KEY) },
......@@ -571,7 +572,7 @@ static struct input_device_id joydev_blacklist[] = {
{ } /* Terminating entry */
};
static struct input_device_id joydev_ids[] = {
static const struct input_device_id joydev_ids[] = {
{
.flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_ABSBIT,
.evbit = { BIT(EV_ABS) },
......@@ -605,8 +606,7 @@ static struct input_handler joydev_handler = {
static int __init joydev_init(void)
{
input_register_handler(&joydev_handler);
return 0;
return input_register_handler(&joydev_handler);
}
static void __exit joydev_exit(void)
......
drivers/input/joystick/iforce/iforce-ff.c
View file @ a12f66fc
......@@ -165,19 +165,19 @@ static int make_condition_modifier(struct iforce* iforce,
data[0] = LO(mod_chunk->start);
data[1] = HI(mod_chunk->start);
data[2] = (100*rk)>>15; /* Dangerous: the sign is extended by gcc on plateforms providing an arith shift */
data[3] = (100*lk)>>15; /* This code is incorrect on cpus lacking arith shift */
data[2] = (100 * rk) >> 15; /* Dangerous: the sign is extended by gcc on plateforms providing an arith shift */
data[3] = (100 * lk) >> 15; /* This code is incorrect on cpus lacking arith shift */
center = (500*center)>>15;
center = (500 * center) >> 15;
data[4] = LO(center);
data[5] = HI(center);
db = (1000*db)>>16;
db = (1000 * db) >> 16;
data[6] = LO(db);
data[7] = HI(db);
data[8] = (100*rsat)>>16;
data[9] = (100*lsat)>>16;
data[8] = (100 * rsat) >> 16;
data[9] = (100 * lsat) >> 16;
iforce_send_packet(iforce, FF_CMD_CONDITION, data);
iforce_dump_packet("condition", FF_CMD_CONDITION, data);
......@@ -188,6 +188,7 @@ static int make_condition_modifier(struct iforce* iforce,
static unsigned char find_button(struct iforce *iforce, signed short button)
{
int i;
for (i = 1; iforce->type->btn[i] >= 0; i++)
if (iforce->type->btn[i] == button)
return i + 1;
......@@ -198,19 +199,17 @@ static unsigned char find_button(struct iforce *iforce, signed short button)
* Analyse the changes in an effect, and tell if we need to send an condition
* parameter packet
*/
static int need_condition_modifier(struct iforce* iforce, struct ff_effect* new)
static int need_condition_modifier(struct ff_effect *old, struct ff_effect *new)
{
int id = new->id;
struct ff_effect* old = &iforce->core_effects[id].effect;
int ret=0;
int ret = 0;
int i;
if (new->type != FF_SPRING && new->type != FF_FRICTION) {
printk(KERN_WARNING "iforce.c: bad effect type in need_condition_modifier\n");
return FALSE;
return 0;
}
for(i=0; i<2; i++) {
for (i = 0; i < 2; i++) {
ret |= old->u.condition[i].right_saturation != new->u.condition[i].right_saturation
|| old->u.condition[i].left_saturation != new->u.condition[i].left_saturation
|| old->u.condition[i].right_coeff != new->u.condition[i].right_coeff
......@@ -225,35 +224,29 @@ static int need_condition_modifier(struct iforce* iforce, struct ff_effect* new)
* Analyse the changes in an effect, and tell if we need to send a magnitude
* parameter packet
*/
static int need_magnitude_modifier(struct iforce* iforce, struct ff_effect* effect)
static int need_magnitude_modifier(struct ff_effect *old, struct ff_effect *effect)
{
int id = effect->id;
struct ff_effect* old = &iforce->core_effects[id].effect;
if (effect->type != FF_CONSTANT) {
printk(KERN_WARNING "iforce.c: bad effect type in need_envelope_modifier\n");
return FALSE;
return 0;
}
return (old->u.constant.level != effect->u.constant.level);
return old->u.constant.level != effect->u.constant.level;
}
/*
* Analyse the changes in an effect, and tell if we need to send an envelope
* parameter packet
*/
static int need_envelope_modifier(struct iforce* iforce, struct ff_effect* effect)
static int need_envelope_modifier(struct ff_effect *old, struct ff_effect *effect)
{
int id = effect->id;
struct ff_effect* old = &iforce->core_effects[id].effect;
switch (effect->type) {
case FF_CONSTANT:
if (old->u.constant.envelope.attack_length != effect->u.constant.envelope.attack_length
|| old->u.constant.envelope.attack_level != effect->u.constant.envelope.attack_level
|| old->u.constant.envelope.fade_length != effect->u.constant.envelope.fade_length
|| old->u.constant.envelope.fade_level != effect->u.constant.envelope.fade_level)
return TRUE;
return 1;
break;
case FF_PERIODIC:
......@@ -261,30 +254,26 @@ static int need_envelope_modifier(struct iforce* iforce, struct ff_effect* effec
|| old->u.periodic.envelope.attack_level != effect->u.periodic.envelope.attack_level
|| old->u.periodic.envelope.fade_length != effect->u.periodic.envelope.fade_length
|| old->u.periodic.envelope.fade_level != effect->u.periodic.envelope.fade_level)
return TRUE;
return 1;
break;
default:
printk(KERN_WARNING "iforce.c: bad effect type in need_envelope_modifier\n");
}
return FALSE;
return 0;
}
/*
* Analyse the changes in an effect, and tell if we need to send a periodic
* parameter effect
*/
static int need_period_modifier(struct iforce* iforce, struct ff_effect* new)
static int need_period_modifier(struct ff_effect *old, struct ff_effect *new)
{
int id = new->id;
struct ff_effect* old = &iforce->core_effects[id].effect;
if (new->type != FF_PERIODIC) {
printk(KERN_WARNING "iforce.c: bad effect type in need_periodic_modifier\n");
return FALSE;
printk(KERN_WARNING "iforce.c: bad effect type in need_period_modifier\n");
return 0;
}
return (old->u.periodic.period != new->u.periodic.period
|| old->u.periodic.magnitude != new->u.periodic.magnitude
|| old->u.periodic.offset != new->u.periodic.offset
......@@ -295,19 +284,16 @@ static int need_period_modifier(struct iforce* iforce, struct ff_effect* new)
* Analyse the changes in an effect, and tell if we need to send an effect
* packet
*/
static int need_core(struct iforce* iforce, struct ff_effect* new)
static int need_core(struct ff_effect *old, struct ff_effect *new)
{
int id = new->id;
struct ff_effect* old = &iforce->core_effects[id].effect;
if (old->direction != new->direction
|| old->trigger.button != new->trigger.button
|| old->trigger.interval != new->trigger.interval
|| old->replay.length != new->replay.length
|| old->replay.delay != new->replay.delay)
return TRUE;
return 1;
return FALSE;
return 0;
}
/*
* Send the part common to all effects to the device
......@@ -360,7 +346,7 @@ static int make_core(struct iforce* iforce, u16 id, u16 mod_id1, u16 mod_id2,
* Upload a periodic effect to the device
* See also iforce_upload_constant.
*/
int iforce_upload_periodic(struct iforce* iforce, struct ff_effect* effect, int is_update)
int iforce_upload_periodic(struct iforce *iforce, struct ff_effect *effect, struct ff_effect *old)
{
u8 wave_code;
int core_id = effect->id;
......@@ -371,23 +357,25 @@ int iforce_upload_periodic(struct iforce* iforce, struct ff_effect* effect, int
int param2_err = 1;
int core_err = 0;
if (!is_update || need_period_modifier(iforce, effect)) {
if (!old || need_period_modifier(old, effect)) {
param1_err = make_period_modifier(iforce, mod1_chunk,
is_update,
old != NULL,
effect->u.periodic.magnitude, effect->u.periodic.offset,
effect->u.periodic.period, effect->u.periodic.phase);
if (param1_err) return param1_err;
if (param1_err)
return param1_err;
set_bit(FF_MOD1_IS_USED, core_effect->flags);
}
if (!is_update || need_envelope_modifier(iforce, effect)) {
if (!old || need_envelope_modifier(old, effect)) {
param2_err = make_envelope_modifier(iforce, mod2_chunk,
is_update,
old !=NULL,
effect->u.periodic.envelope.attack_length,
effect->u.periodic.envelope.attack_level,
effect->u.periodic.envelope.fade_length,
effect->u.periodic.envelope.fade_level);
if (param2_err) return param2_err;
if (param2_err)
return param2_err;
set_bit(FF_MOD2_IS_USED, core_effect->flags);
}
......@@ -400,7 +388,7 @@ int iforce_upload_periodic(struct iforce* iforce, struct ff_effect* effect, int
default: wave_code = 0x20; break;
}
if (!is_update || need_core(iforce, effect)) {
if (!old || need_core(old, effect)) {
core_err = make_core(iforce, effect->id,
mod1_chunk->start,
mod2_chunk->start,
......@@ -429,7 +417,7 @@ int iforce_upload_periodic(struct iforce* iforce, struct ff_effect* effect, int
* 0 Ok, effect created or updated
* 1 effect did not change since last upload, and no packet was therefore sent
*/
int iforce_upload_constant(struct iforce* iforce, struct ff_effect* effect, int is_update)
int iforce_upload_constant(struct iforce *iforce, struct ff_effect *effect, struct ff_effect *old)
{
int core_id = effect->id;
struct iforce_core_effect* core_effect = iforce->core_effects + core_id;
......@@ -439,26 +427,28 @@ int iforce_upload_constant(struct iforce* iforce, struct ff_effect* effect, int
int param2_err = 1;
int core_err = 0;
if (!is_update || need_magnitude_modifier(iforce, effect)) {
if (!old || need_magnitude_modifier(old, effect)) {
param1_err = make_magnitude_modifier(iforce, mod1_chunk,
is_update,
old != NULL,
effect->u.constant.level);
if (param1_err) return param1_err;
if (param1_err)
return param1_err;
set_bit(FF_MOD1_IS_USED, core_effect->flags);
}
if (!is_update || need_envelope_modifier(iforce, effect)) {
if (!old || need_envelope_modifier(old, effect)) {
param2_err = make_envelope_modifier(iforce, mod2_chunk,
is_update,
old != NULL,
effect->u.constant.envelope.attack_length,
effect->u.constant.envelope.attack_level,
effect->u.constant.envelope.fade_length,
effect->u.constant.envelope.fade_level);
if (param2_err) return param2_err;
if (param2_err)
return param2_err;
set_bit(FF_MOD2_IS_USED, core_effect->flags);
}
if (!is_update || need_core(iforce, effect)) {
if (!old || need_core(old, effect)) {
core_err = make_core(iforce, effect->id,
mod1_chunk->start,
mod2_chunk->start,
......@@ -483,7 +473,7 @@ int iforce_upload_constant(struct iforce* iforce, struct ff_effect* effect, int
/*
* Upload an condition effect. Those are for example friction, inertia, springs...
*/
int iforce_upload_condition(struct iforce* iforce, struct ff_effect* effect, int is_update)
int iforce_upload_condition(struct iforce *iforce, struct ff_effect *effect, struct ff_effect *old)
{
int core_id = effect->id;
struct iforce_core_effect* core_effect = iforce->core_effects + core_id;
......@@ -494,37 +484,39 @@ int iforce_upload_condition(struct iforce* iforce, struct ff_effect* effect, int
int core_err = 0;
switch (effect->type) {
case FF_SPRING: type = 0x40; break;
case FF_DAMPER: type = 0x41; break;
case FF_SPRING: type = 0x40; break;
case FF_DAMPER: type = 0x41; break;
default: return -1;
}
if (!is_update || need_condition_modifier(iforce, effect)) {
if (!old || need_condition_modifier(old, effect)) {
param_err = make_condition_modifier(iforce, mod1_chunk,
is_update,
old != NULL,
effect->u.condition[0].right_saturation,
effect->u.condition[0].left_saturation,
effect->u.condition[0].right_coeff,
effect->u.condition[0].left_coeff,
effect->u.condition[0].deadband,
effect->u.condition[0].center);
if (param_err) return param_err;
if (param_err)
return param_err;
set_bit(FF_MOD1_IS_USED, core_effect->flags);
param_err = make_condition_modifier(iforce, mod2_chunk,
is_update,
old != NULL,
effect->u.condition[1].right_saturation,
effect->u.condition[1].left_saturation,
effect->u.condition[1].right_coeff,
effect->u.condition[1].left_coeff,
effect->u.condition[1].deadband,
effect->u.condition[1].center);
if (param_err) return param_err;
if (param_err)
return param_err;
set_bit(FF_MOD2_IS_USED, core_effect->flags);
}
if (!is_update || need_core(iforce, effect)) {
if (!old || need_core(old, effect)) {
core_err = make_core(iforce, effect->id,
mod1_chunk->start, mod2_chunk->start,
type, 0xc0,
......
drivers/input/joystick/iforce/iforce-main.c
View file @ a12f66fc
......@@ -83,103 +83,57 @@ static struct iforce_device iforce_device[] = {
{ 0x0000, 0x0000, "Unknown I-Force Device [%04x:%04x]", btn_joystick, abs_joystick, ff_iforce }
};
static int iforce_input_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
static int iforce_playback(struct input_dev *dev, int effect_id, int value)
{
struct iforce* iforce = dev->private;
unsigned char data[3];
if (type != EV_FF)
return -1;
switch (code) {
case FF_GAIN:
data[0] = value >> 9;
iforce_send_packet(iforce, FF_CMD_GAIN, data);
return 0;
case FF_AUTOCENTER:
struct iforce_core_effect *core_effect = &iforce->core_effects[effect_id];
data[0] = 0x03;
data[1] = value >> 9;
iforce_send_packet(iforce, FF_CMD_AUTOCENTER, data);
if (value > 0)
set_bit(FF_CORE_SHOULD_PLAY, core_effect->flags);
else
clear_bit(FF_CORE_SHOULD_PLAY, core_effect->flags);
data[0] = 0x04;
data[1] = 0x01;
iforce_send_packet(iforce, FF_CMD_AUTOCENTER, data);
iforce_control_playback(iforce, effect_id, value);
return 0;
}
return 0;
static void iforce_set_gain(struct input_dev *dev, u16 gain)
{
struct iforce* iforce = dev->private;
unsigned char data[3];
default: /* Play or stop an effect */
data[0] = gain >> 9;
iforce_send_packet(iforce, FF_CMD_GAIN, data);
}
if (!CHECK_OWNERSHIP(code, iforce)) {
return -1;
}
if (value > 0) {
set_bit(FF_CORE_SHOULD_PLAY, iforce->core_effects[code].flags);
}
else {
clear_bit(FF_CORE_SHOULD_PLAY, iforce->core_effects[code].flags);
}
static void iforce_set_autocenter(struct input_dev *dev, u16 magnitude)
{
struct iforce* iforce = dev->private;
unsigned char data[3];
iforce_control_playback(iforce, code, value);
return 0;
}
data[0] = 0x03;
data[1] = magnitude >> 9;
iforce_send_packet(iforce, FF_CMD_AUTOCENTER, data);
return -1;
data[0] = 0x04;
data[1] = 0x01;
iforce_send_packet(iforce, FF_CMD_AUTOCENTER, data);
}
/*
* Function called when an ioctl is performed on the event dev entry.
* It uploads an effect to the device
*/
static int iforce_upload_effect(struct input_dev *dev, struct ff_effect *effect)
static int iforce_upload_effect(struct input_dev *dev, struct ff_effect *effect, struct ff_effect *old)
{
struct iforce* iforce = dev->private;
int id;
struct iforce_core_effect *core_effect = &iforce->core_effects[effect->id];
int ret;
int is_update;
/* Check this effect type is supported by this device */
if (!test_bit(effect->type, iforce->dev->ffbit))
return -EINVAL;
/*
* If we want to create a new effect, get a free id
*/
if (effect->id == -1) {
for (id = 0; id < FF_EFFECTS_MAX; ++id)
if (!test_and_set_bit(FF_CORE_IS_USED, iforce->core_effects[id].flags))
break;
if (id == FF_EFFECTS_MAX || id >= iforce->dev->ff_effects_max)
return -ENOMEM;
effect->id = id;
iforce->core_effects[id].owner = current->pid;
iforce->core_effects[id].flags[0] = (1 << FF_CORE_IS_USED); /* Only IS_USED bit must be set */
is_update = FALSE;
}
else {
/* We want to update an effect */
if (!CHECK_OWNERSHIP(effect->id, iforce))
return -EACCES;
/* Parameter type cannot be updated */
if (effect->type != iforce->core_effects[effect->id].effect.type)
return -EINVAL;
if (__test_and_set_bit(FF_CORE_IS_USED, core_effect->flags)) {
/* Check the effect is not already being updated */
if (test_bit(FF_CORE_UPDATE, iforce->core_effects[effect->id].flags))
if (test_bit(FF_CORE_UPDATE, core_effect->flags))
return -EAGAIN;
is_update = TRUE;
}
/*
......@@ -188,28 +142,28 @@ static int iforce_upload_effect(struct input_dev *dev, struct ff_effect *effect)
switch (effect->type) {
case FF_PERIODIC:
ret = iforce_upload_periodic(iforce, effect, is_update);
ret = iforce_upload_periodic(iforce, effect, old);
break;
case FF_CONSTANT:
ret = iforce_upload_constant(iforce, effect, is_update);
ret = iforce_upload_constant(iforce, effect, old);
break;
case FF_SPRING:
case FF_DAMPER:
ret = iforce_upload_condition(iforce, effect, is_update);
ret = iforce_upload_condition(iforce, effect, old);
break;
default:
return -EINVAL;
}
if (ret == 0) {
/* A packet was sent, forbid new updates until we are notified
* that the packet was updated
*/
set_bit(FF_CORE_UPDATE, iforce->core_effects[effect->id].flags);
set_bit(FF_CORE_UPDATE, core_effect->flags);
}
iforce->core_effects[effect->id].effect = *effect;
return ret;
}
......@@ -219,20 +173,9 @@ static int iforce_upload_effect(struct input_dev *dev, struct ff_effect *effect)
*/
static int iforce_erase_effect(struct input_dev *dev, int effect_id)
{
struct iforce* iforce = dev->private;
struct iforce *iforce = dev->private;
struct iforce_core_effect *core_effect = &iforce->core_effects[effect_id];
int err = 0;
struct iforce_core_effect* core_effect;
if (effect_id < 0 || effect_id >= FF_EFFECTS_MAX)
return -EINVAL;
core_effect = &iforce->core_effects[effect_id];
/* Check who is trying to erase this effect */
if (core_effect->owner != current->pid) {
printk(KERN_WARNING "iforce-main.c: %d tried to erase an effect belonging to %d\n", current->pid, core_effect->owner);
return -EACCES;
}
if (test_bit(FF_MOD1_IS_USED, core_effect->flags))
err = release_resource(&core_effect->mod1_chunk);
......@@ -240,7 +183,7 @@ static int iforce_erase_effect(struct input_dev *dev, int effect_id)
if (!err && test_bit(FF_MOD2_IS_USED, core_effect->flags))
err = release_resource(&core_effect->mod2_chunk);
/*TODO: remember to change that if more FF_MOD* bits are added */
/* TODO: remember to change that if more FF_MOD* bits are added */
core_effect->flags[0] = 0;
return err;
......@@ -260,52 +203,31 @@ static int iforce_open(struct input_dev *dev)
#endif
}
/* Enable force feedback */
iforce_send_packet(iforce, FF_CMD_ENABLE, "\004");
if (test_bit(EV_FF, dev->evbit)) {
/* Enable force feedback */
iforce_send_packet(iforce, FF_CMD_ENABLE, "\004");
}
return 0;
}
static int iforce_flush(struct input_dev *dev, struct file *file)
static void iforce_release(struct input_dev *dev)
{
struct iforce *iforce = dev->private;
int i;
/* Erase all effects this process owns */
for (i=0; i<dev->ff_effects_max; ++i) {
if (test_bit(FF_CORE_IS_USED, iforce->core_effects[i].flags) &&
current->pid == iforce->core_effects[i].owner) {
/* Stop effect */
input_report_ff(dev, i, 0);
/* Free ressources assigned to effect */
if (iforce_erase_effect(dev, i)) {
printk(KERN_WARNING "iforce_flush: erase effect %d failed\n", i);
if (test_bit(EV_FF, dev->evbit)) {
/* Check: no effects should be present in memory */
for (i = 0; i < dev->ff->max_effects; i++) {
if (test_bit(FF_CORE_IS_USED, iforce->core_effects[i].flags)) {
printk(KERN_WARNING "iforce_release: Device still owns effects\n");
break;
}
}
/* Disable force feedback playback */
iforce_send_packet(iforce, FF_CMD_ENABLE, "\001");
}
return 0;
}
static void iforce_release(struct input_dev *dev)
{
struct iforce *iforce = dev->private;
int i;
/* Check: no effect should be present in memory */
for (i=0; i<dev->ff_effects_max; ++i) {
if (test_bit(FF_CORE_IS_USED, iforce->core_effects[i].flags))
break;
}
if (i<dev->ff_effects_max) {
printk(KERN_WARNING "iforce_release: Device still owns effects\n");
}
/* Disable force feedback playback */
iforce_send_packet(iforce, FF_CMD_ENABLE, "\001");
switch (iforce->bus) {
#ifdef CONFIG_JOYSTICK_IFORCE_USB
......@@ -342,8 +264,10 @@ void iforce_delete_device(struct iforce *iforce)
int iforce_init_device(struct iforce *iforce)
{
struct input_dev *input_dev;
struct ff_device *ff;
unsigned char c[] = "CEOV";
int i;
int i, error;
int ff_effects = 0;
input_dev = input_allocate_device();
if (!input_dev)
......@@ -378,11 +302,6 @@ int iforce_init_device(struct iforce *iforce)
input_dev->name = "Unknown I-Force device";
input_dev->open = iforce_open;
input_dev->close = iforce_release;
input_dev->flush = iforce_flush;
input_dev->event = iforce_input_event;
input_dev->upload_effect = iforce_upload_effect;
input_dev->erase_effect = iforce_erase_effect;
input_dev->ff_effects_max = 10;
/*
* On-device memory allocation.
......@@ -430,15 +349,15 @@ int iforce_init_device(struct iforce *iforce)
printk(KERN_WARNING "iforce-main.c: Device does not respond to id packet B\n");
if (!iforce_get_id_packet(iforce, "N"))
iforce->dev->ff_effects_max = iforce->edata[1];
ff_effects = iforce->edata[1];
else
printk(KERN_WARNING "iforce-main.c: Device does not respond to id packet N\n");
/* Check if the device can store more effects than the driver can really handle */
if (iforce->dev->ff_effects_max > FF_EFFECTS_MAX) {
printk(KERN_WARNING "input??: Device can handle %d effects, but N_EFFECTS_MAX is set to %d in iforce.h\n",
iforce->dev->ff_effects_max, FF_EFFECTS_MAX);
iforce->dev->ff_effects_max = FF_EFFECTS_MAX;
if (ff_effects > IFORCE_EFFECTS_MAX) {
printk(KERN_WARNING "iforce: Limiting number of effects to %d (device reports %d)\n",
IFORCE_EFFECTS_MAX, ff_effects);
ff_effects = IFORCE_EFFECTS_MAX;
}
/*
......@@ -472,12 +391,10 @@ int iforce_init_device(struct iforce *iforce)
* Set input device bitfields and ranges.
*/
input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS) | BIT(EV_FF) | BIT(EV_FF_STATUS);
input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS) | BIT(EV_FF_STATUS);
for (i = 0; iforce->type->btn[i] >= 0; i++) {
signed short t = iforce->type->btn[i];
set_bit(t, input_dev->keybit);
}
for (i = 0; iforce->type->btn[i] >= 0; i++)
set_bit(iforce->type->btn[i], input_dev->keybit);
set_bit(BTN_DEAD, input_dev->keybit);
for (i = 0; iforce->type->abs[i] >= 0; i++) {
......@@ -516,9 +433,24 @@ int iforce_init_device(struct iforce *iforce)
}
}
for (i = 0; iforce->type->ff[i] >= 0; i++)
set_bit(iforce->type->ff[i], input_dev->ffbit);
if (ff_effects) {
for (i = 0; iforce->type->ff[i] >= 0; i++)
set_bit(iforce->type->ff[i], input_dev->ffbit);
error = input_ff_create(input_dev, ff_effects);
if (error) {
input_free_device(input_dev);
return error;
}
ff = input_dev->ff;
ff->upload = iforce_upload_effect;
ff->erase = iforce_erase_effect;
ff->set_gain = iforce_set_gain;
ff->set_autocenter = iforce_set_autocenter;
ff->playback = iforce_playback;
}
/*
* Register input device.
*/
......
drivers/input/joystick/iforce/iforce-packets.c
View file @ a12f66fc
......@@ -140,7 +140,10 @@ static int mark_core_as_ready(struct iforce *iforce, unsigned short addr)
{
int i;
for (i = 0; i < iforce->dev->ff_effects_max; ++i) {
if (!iforce->dev->ff)
return 0;
for (i = 0; i < iforce->dev->ff->max_effects; ++i) {
if (test_bit(FF_CORE_IS_USED, iforce->core_effects[i].flags) &&
(iforce->core_effects[i].mod1_chunk.start == addr ||
iforce->core_effects[i].mod2_chunk.start == addr)) {
......@@ -229,19 +232,17 @@ void iforce_process_packet(struct iforce *iforce, u16 cmd, unsigned char *data,
i = data[1] & 0x7f;
if (data[1] & 0x80) {
if (!test_and_set_bit(FF_CORE_IS_PLAYED, iforce->core_effects[i].flags)) {
/* Report play event */
input_report_ff_status(dev, i, FF_STATUS_PLAYING);
/* Report play event */
input_report_ff_status(dev, i, FF_STATUS_PLAYING);
}
}
else if (test_and_clear_bit(FF_CORE_IS_PLAYED, iforce->core_effects[i].flags)) {
} else if (test_and_clear_bit(FF_CORE_IS_PLAYED, iforce->core_effects[i].flags)) {
/* Report stop event */
input_report_ff_status(dev, i, FF_STATUS_STOPPED);
}
if (LO(cmd) > 3) {
int j;
for (j=3; j<LO(cmd); j+=2) {
for (j = 3; j < LO(cmd); j += 2)
mark_core_as_ready(iforce, data[j] | (data[j+1]<<8));
}
}
break;
}
......
drivers/input/joystick/iforce/iforce.h
View file @ a12f66fc
......@@ -51,10 +51,7 @@
#define IFORCE_232 1
#define IFORCE_USB 2
#define FALSE 0
#define TRUE 1
#define FF_EFFECTS_MAX 32
#define IFORCE_EFFECTS_MAX 32
/* Each force feedback effect is made of one core effect, which can be
* associated to at most to effect modifiers
......@@ -67,24 +64,11 @@
#define FF_CORE_UPDATE 5 /* Effect is being updated */
#define FF_MODCORE_MAX 5
#define CHECK_OWNERSHIP(i, iforce) \
((i) < FF_EFFECTS_MAX && i >= 0 && \
test_bit(FF_CORE_IS_USED, (iforce)->core_effects[(i)].flags) && \
(current->pid == 0 || \
(iforce)->core_effects[(i)].owner == current->pid))
struct iforce_core_effect {
/* Information about where modifiers are stored in the device's memory */
struct resource mod1_chunk;
struct resource mod2_chunk;
unsigned long flags[NBITS(FF_MODCORE_MAX)];
pid_t owner;
/* Used to keep track of parameters of an effect. They are needed
* to know what parts of an effect changed in an update operation.
* We try to send only parameter packets if possible, as sending
* effect parameter requires the effect to be stoped and restarted
*/
struct ff_effect effect;
};
#define FF_CMD_EFFECT 0x010e
......@@ -145,7 +129,7 @@ struct iforce {
/* Force Feedback */
wait_queue_head_t wait;
struct resource device_memory;
struct iforce_core_effect core_effects[FF_EFFECTS_MAX];
struct iforce_core_effect core_effects[IFORCE_EFFECTS_MAX];
struct mutex mem_mutex;
};
......@@ -182,9 +166,9 @@ void iforce_dump_packet(char *msg, u16 cmd, unsigned char *data) ;
int iforce_get_id_packet(struct iforce *iforce, char *packet);
/* iforce-ff.c */
int iforce_upload_periodic(struct iforce*, struct ff_effect*, int is_update);
int iforce_upload_constant(struct iforce*, struct ff_effect*, int is_update);
int iforce_upload_condition(struct iforce*, struct ff_effect*, int is_update);
int iforce_upload_periodic(struct iforce *, struct ff_effect *, struct ff_effect *);
int iforce_upload_constant(struct iforce *, struct ff_effect *, struct ff_effect *);
int iforce_upload_condition(struct iforce *, struct ff_effect *, struct ff_effect *);
/* Public variables */
extern struct serio_driver iforce_serio_drv;
......
drivers/input/keyboard/Kconfig
View file @ a12f66fc
......@@ -121,6 +121,17 @@ config KEYBOARD_NEWTON
To compile this driver as a module, choose M here: the
module will be called newtonkbd.
config KEYBOARD_STOWAWAY
tristate "Stowaway keyboard"
select SERIO
help
Say Y here if you have a Stowaway keyboard on a serial port.
Stowaway compatible keyboards like Dicota Input-PDA keyboard
are also supported by this driver.
To compile this driver as a module, choose M here: the
module will be called stowaway.
config KEYBOARD_CORGI
tristate "Corgi keyboard"
depends on PXA_SHARPSL
......
drivers/input/keyboard/Makefile
View file @ a12f66fc
......@@ -11,6 +11,7 @@ obj-$(CONFIG_KEYBOARD_XTKBD) += xtkbd.o
obj-$(CONFIG_KEYBOARD_AMIGA) += amikbd.o
obj-$(CONFIG_KEYBOARD_LOCOMO) += locomokbd.o
obj-$(CONFIG_KEYBOARD_NEWTON) += newtonkbd.o
obj-$(CONFIG_KEYBOARD_STOWAWAY) += stowaway.o
obj-$(CONFIG_KEYBOARD_CORGI) += corgikbd.o
obj-$(CONFIG_KEYBOARD_SPITZ) += spitzkbd.o
obj-$(CONFIG_KEYBOARD_HIL) += hil_kbd.o
......
drivers/input/keyboard/atkbd.c
View file @ a12f66fc
......@@ -652,9 +652,7 @@ static int atkbd_probe(struct atkbd *atkbd)
return 0;
}
if (param[0] != 0xab && param[0] != 0xac && /* Regular and NCD Sun keyboards */
param[0] != 0x2b && param[0] != 0x5d && /* Trust keyboard, raw and translated */
param[0] != 0x60 && param[0] != 0x47) /* NMB SGI keyboard, raw and translated */
if (!ps2_is_keyboard_id(param[0]))
return -1;
atkbd->id = (param[0] << 8) | param[1];
......
drivers/input/keyboard/stowaway.c 0 → 100644
View file @ a12f66fc
/*
* Stowaway keyboard driver for Linux
*/
/*
* Copyright (c) 2006 Marek Vasut
*
* Based on Newton keyboard driver for Linux
* by Justin Cormack
*/
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Should you need to contact me, the author, you can do so either by
* e-mail - mail your message to <marek.vasut@gmail.com>, or by paper mail:
* Marek Vasut, Liskovecka 559, Frydek-Mistek, 738 01 Czech Republic
*/
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/input.h>
#include <linux/init.h>
#include <linux/serio.h>
#define DRIVER_DESC "Stowaway keyboard driver"
MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
#define SKBD_KEY_MASK 0x7f
#define SKBD_RELEASE 0x80
static unsigned char skbd_keycode[128] = {
KEY_1, KEY_2, KEY_3, KEY_Z, KEY_4, KEY_5, KEY_6, KEY_7,
0, KEY_Q, KEY_W, KEY_E, KEY_R, KEY_T, KEY_Y, KEY_GRAVE,
KEY_X, KEY_A, KEY_S, KEY_D, KEY_F, KEY_G, KEY_H, KEY_SPACE,
KEY_CAPSLOCK, KEY_TAB, KEY_LEFTCTRL, 0, 0, 0, 0, 0,
0, 0, 0, KEY_LEFTALT, 0, 0, 0, 0,
0, 0, 0, 0, KEY_C, KEY_V, KEY_B, KEY_N,
KEY_MINUS, KEY_EQUAL, KEY_BACKSPACE, KEY_HOME, KEY_8, KEY_9, KEY_0, KEY_ESC,
KEY_LEFTBRACE, KEY_RIGHTBRACE, KEY_BACKSLASH, KEY_END, KEY_U, KEY_I, KEY_O, KEY_P,
KEY_APOSTROPHE, KEY_ENTER, KEY_PAGEUP,0, KEY_J, KEY_K, KEY_L, KEY_SEMICOLON,
KEY_SLASH, KEY_UP, KEY_PAGEDOWN, 0,KEY_M, KEY_COMMA, KEY_DOT, KEY_INSERT,
KEY_DELETE, KEY_LEFT, KEY_DOWN, KEY_RIGHT, 0, 0, 0,
KEY_LEFTSHIFT, KEY_RIGHTSHIFT, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, KEY_F1, KEY_F2, KEY_F3, KEY_F4, KEY_F5, KEY_F6, KEY_F7,
KEY_F8, KEY_F9, KEY_F10, KEY_F11, KEY_F12, 0, 0, 0
};
struct skbd {
unsigned char keycode[128];
struct input_dev *dev;
struct serio *serio;
char phys[32];
};
static irqreturn_t skbd_interrupt(struct serio *serio, unsigned char data,
unsigned int flags, struct pt_regs *regs)
{
struct skbd *skbd = serio_get_drvdata(serio);
struct input_dev *dev = skbd->dev;
if (skbd->keycode[data & SKBD_KEY_MASK]) {
input_regs(dev, regs);
input_report_key(dev, skbd->keycode[data & SKBD_KEY_MASK],
!(data & SKBD_RELEASE));
input_sync(dev);
}
return IRQ_HANDLED;
}
static int skbd_connect(struct serio *serio, struct serio_driver *drv)
{
struct skbd *skbd;
struct input_dev *input_dev;
int err = -ENOMEM;
int i;
skbd = kzalloc(sizeof(struct skbd), GFP_KERNEL);
input_dev = input_allocate_device();
if (!skbd || !input_dev)
goto fail1;
skbd->serio = serio;
skbd->dev = input_dev;
snprintf(skbd->phys, sizeof(skbd->phys), "%s/input0", serio->phys);
memcpy(skbd->keycode, skbd_keycode, sizeof(skbd->keycode));
input_dev->name = "Stowaway Keyboard";
input_dev->phys = skbd->phys;
input_dev->id.bustype = BUS_RS232;
input_dev->id.vendor = SERIO_STOWAWAY;
input_dev->id.product = 0x0001;
input_dev->id.version = 0x0100;
input_dev->cdev.dev = &serio->dev;
input_dev->private = skbd;
input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP);
input_dev->keycode = skbd->keycode;
input_dev->keycodesize = sizeof(unsigned char);
input_dev->keycodemax = ARRAY_SIZE(skbd_keycode);
for (i = 0; i < ARRAY_SIZE(skbd_keycode); i++)
set_bit(skbd_keycode[i], input_dev->keybit);
clear_bit(0, input_dev->keybit);
serio_set_drvdata(serio, skbd);
err = serio_open(serio, drv);
if (err)
goto fail2;
err = input_register_device(skbd->dev);
if (err)
goto fail3;
return 0;
fail3: serio_close(serio);
fail2: serio_set_drvdata(serio, NULL);
fail1: input_free_device(input_dev);
kfree(skbd);
return err;
}
static void skbd_disconnect(struct serio *serio)
{
struct skbd *skbd = serio_get_drvdata(serio);
serio_close(serio);
serio_set_drvdata(serio, NULL);
input_unregister_device(skbd->dev);
kfree(skbd);
}
static struct serio_device_id skbd_serio_ids[] = {
{
.type = SERIO_RS232,
.proto = SERIO_STOWAWAY,
.id = SERIO_ANY,
.extra = SERIO_ANY,
},
{ 0 }
};
MODULE_DEVICE_TABLE(serio, skbd_serio_ids);
static struct serio_driver skbd_drv = {
.driver = {
.name = "stowaway",
},
.description = DRIVER_DESC,
.id_table = skbd_serio_ids,
.interrupt = skbd_interrupt,
.connect = skbd_connect,
.disconnect = skbd_disconnect,
};
static int __init skbd_init(void)
{
serio_register_driver(&skbd_drv);
return 0;
}
static void __exit skbd_exit(void)
{
serio_unregister_driver(&skbd_drv);
}
module_init(skbd_init);
module_exit(skbd_exit);
drivers/input/misc/uinput.c
View file @ a12f66fc
......@@ -20,6 +20,9 @@
* Author: Aristeu Sergio Rozanski Filho <aris@cathedrallabs.org>
*
* Changes/Revisions:
* 0.3 09/04/2006 (Anssi Hannula <anssi.hannula@gmail.com>)
* - updated ff support for the changes in kernel interface
* - added MODULE_VERSION
* 0.2 16/10/2004 (Micah Dowty <micah@navi.cx>)
* - added force feedback support
* - added UI_SET_PHYS
......@@ -107,18 +110,31 @@ static int uinput_request_submit(struct input_dev *dev, struct uinput_request *r
return request->retval;
}
static int uinput_dev_upload_effect(struct input_dev *dev, struct ff_effect *effect)
static void uinput_dev_set_gain(struct input_dev *dev, u16 gain)
{
uinput_dev_event(dev, EV_FF, FF_GAIN, gain);
}
static void uinput_dev_set_autocenter(struct input_dev *dev, u16 magnitude)
{
uinput_dev_event(dev, EV_FF, FF_AUTOCENTER, magnitude);
}
static int uinput_dev_playback(struct input_dev *dev, int effect_id, int value)
{
return uinput_dev_event(dev, EV_FF, effect_id, value);
}
static int uinput_dev_upload_effect(struct input_dev *dev, struct ff_effect *effect, struct ff_effect *old)
{
struct uinput_request request;
int retval;
if (!test_bit(EV_FF, dev->evbit))
return -ENOSYS;
request.id = -1;
init_completion(&request.done);
request.code = UI_FF_UPLOAD;
request.u.effect = effect;
request.u.upload.effect = effect;
request.u.upload.old = old;
retval = uinput_request_reserve_slot(dev->private, &request);
if (!retval)
......@@ -168,6 +184,7 @@ static void uinput_destroy_device(struct uinput_device *udev)
static int uinput_create_device(struct uinput_device *udev)
{
struct input_dev *dev = udev->dev;
int error;
if (udev->state != UIST_SETUP_COMPLETE) {
......@@ -175,15 +192,29 @@ static int uinput_create_device(struct uinput_device *udev)
return -EINVAL;
}
error = input_register_device(udev->dev);
if (error) {
uinput_destroy_device(udev);
return error;
if (udev->ff_effects_max) {
error = input_ff_create(dev, udev->ff_effects_max);
if (error)
goto fail1;
dev->ff->upload = uinput_dev_upload_effect;
dev->ff->erase = uinput_dev_erase_effect;
dev->ff->playback = uinput_dev_playback;
dev->ff->set_gain = uinput_dev_set_gain;
dev->ff->set_autocenter = uinput_dev_set_autocenter;
}
error = input_register_device(udev->dev);
if (error)
goto fail2;
udev->state = UIST_CREATED;
return 0;
fail2: input_ff_destroy(dev);
fail1: uinput_destroy_device(udev);
return error;
}
static int uinput_open(struct inode *inode, struct file *file)
......@@ -243,8 +274,6 @@ static int uinput_allocate_device(struct uinput_device *udev)
return -ENOMEM;
udev->dev->event = uinput_dev_event;
udev->dev->upload_effect = uinput_dev_upload_effect;
udev->dev->erase_effect = uinput_dev_erase_effect;
udev->dev->private = udev;
return 0;
......@@ -278,6 +307,8 @@ static int uinput_setup_device(struct uinput_device *udev, const char __user *bu
goto exit;
}
udev->ff_effects_max = user_dev->ff_effects_max;
size = strnlen(user_dev->name, UINPUT_MAX_NAME_SIZE) + 1;
if (!size) {
retval = -EINVAL;
......@@ -296,7 +327,6 @@ static int uinput_setup_device(struct uinput_device *udev, const char __user *bu
dev->id.vendor = user_dev->id.vendor;
dev->id.product = user_dev->id.product;
dev->id.version = user_dev->id.version;
dev->ff_effects_max = user_dev->ff_effects_max;
size = sizeof(int) * (ABS_MAX + 1);
memcpy(dev->absmax, user_dev->absmax, size);
......@@ -525,12 +555,17 @@ static long uinput_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
break;
}
req = uinput_request_find(udev, ff_up.request_id);
if (!(req && req->code == UI_FF_UPLOAD && req->u.effect)) {
if (!(req && req->code == UI_FF_UPLOAD && req->u.upload.effect)) {
retval = -EINVAL;
break;
}
ff_up.retval = 0;
memcpy(&ff_up.effect, req->u.effect, sizeof(struct ff_effect));
memcpy(&ff_up.effect, req->u.upload.effect, sizeof(struct ff_effect));
if (req->u.upload.old)
memcpy(&ff_up.old, req->u.upload.old, sizeof(struct ff_effect));
else
memset(&ff_up.old, 0, sizeof(struct ff_effect));
if (copy_to_user(p, &ff_up, sizeof(ff_up))) {
retval = -EFAULT;
break;
......@@ -561,12 +596,11 @@ static long uinput_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
break;
}
req = uinput_request_find(udev, ff_up.request_id);
if (!(req && req->code == UI_FF_UPLOAD && req->u.effect)) {
if (!(req && req->code == UI_FF_UPLOAD && req->u.upload.effect)) {
retval = -EINVAL;
break;
}
req->retval = ff_up.retval;
memcpy(req->u.effect, &ff_up.effect, sizeof(struct ff_effect));
uinput_request_done(udev, req);
break;
......@@ -622,6 +656,7 @@ static void __exit uinput_exit(void)
MODULE_AUTHOR("Aristeu Sergio Rozanski Filho");
MODULE_DESCRIPTION("User level driver support for input subsystem");
MODULE_LICENSE("GPL");
MODULE_VERSION("0.3");
module_init(uinput_init);
module_exit(uinput_exit);
......
drivers/input/misc/wistron_btns.c
View file @ a12f66fc
......@@ -248,13 +248,10 @@ static int __init dmi_matched(struct dmi_system_id *dmi)
keymap = dmi->driver_data;
for (key = keymap; key->type != KE_END; key++) {
if (key->type == KE_WIFI) {
if (key->type == KE_WIFI)
have_wifi = 1;
break;
} else if (key->type == KE_BLUETOOTH) {
else if (key->type == KE_BLUETOOTH)
have_bluetooth = 1;
break;
}
}
return 1;
}
......@@ -389,7 +386,16 @@ static struct dmi_system_id dmi_ids[] __initdata = {
},
.driver_data = keymap_acer_travelmate_240
},
{
{
.callback = dmi_matched,
.ident = "Acer TravelMate 2424NWXCi",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2420"),
},
.driver_data = keymap_acer_travelmate_240
},
{
.callback = dmi_matched,
.ident = "AOpen 1559AS",
.matches = {
......
drivers/input/mouse/alps.c
View file @ a12f66fc
......@@ -36,7 +36,7 @@
#define ALPS_PASS 0x20
#define ALPS_FW_BK_2 0x40
static struct alps_model_info alps_model_data[] = {
static const struct alps_model_info alps_model_data[] = {
{ { 0x33, 0x02, 0x0a }, 0x88, 0xf8, ALPS_OLDPROTO }, /* UMAX-530T */
{ { 0x53, 0x02, 0x0a }, 0xf8, 0xf8, 0 },
{ { 0x53, 0x02, 0x14 }, 0xf8, 0xf8, 0 },
......@@ -209,10 +209,10 @@ static psmouse_ret_t alps_process_byte(struct psmouse *psmouse, struct pt_regs *
return PSMOUSE_GOOD_DATA;
}
static struct alps_model_info *alps_get_model(struct psmouse *psmouse, int *version)
static const struct alps_model_info *alps_get_model(struct psmouse *psmouse, int *version)
{
struct ps2dev *ps2dev = &psmouse->ps2dev;
unsigned char rates[] = { 0, 10, 20, 40, 60, 80, 100, 200 };
static const unsigned char rates[] = { 0, 10, 20, 40, 60, 80, 100, 200 };
unsigned char param[4];
int i;
......@@ -504,7 +504,7 @@ int alps_init(struct psmouse *psmouse)
int alps_detect(struct psmouse *psmouse, int set_properties)
{
int version;
struct alps_model_info *model;
const struct alps_model_info *model;
if (!(model = alps_get_model(psmouse, &version)))
return -1;
......
drivers/input/mouse/alps.h
View file @ a12f66fc
......@@ -25,7 +25,7 @@ struct alps_data {
struct input_dev *dev2; /* Relative device */
char name[32]; /* Name */
char phys[32]; /* Phys */
struct alps_model_info *i; /* Info */
const struct alps_model_info *i;/* Info */
int prev_fin; /* Finger bit from previous packet */
};
......
drivers/input/mouse/lifebook.c
View file @ a12f66fc
......@@ -115,13 +115,15 @@ static int lifebook_absolute_mode(struct psmouse *psmouse)
static void lifebook_set_resolution(struct psmouse *psmouse, unsigned int resolution)
{
unsigned char params[] = { 0, 1, 2, 2, 3 };
static const unsigned char params[] = { 0, 1, 2, 2, 3 };
unsigned char p;
if (resolution == 0 || resolution > 400)
resolution = 400;
ps2_command(&psmouse->ps2dev, &params[resolution / 100], PSMOUSE_CMD_SETRES);
psmouse->resolution = 50 << params[resolution / 100];
p = params[resolution / 100];
ps2_command(&psmouse->ps2dev, &p, PSMOUSE_CMD_SETRES);
psmouse->resolution = 50 << p;
}
static void lifebook_disconnect(struct psmouse *psmouse)
......
drivers/input/mouse/logips2pp.c
View file @ a12f66fc
......@@ -30,9 +30,9 @@
#define PS2PP_NAV_BTN 0x20
struct ps2pp_info {
const int model;
unsigned const int kind;
unsigned const int features;
u8 model;
u8 kind;
u16 features;
};
/*
......@@ -199,9 +199,9 @@ static void ps2pp_disconnect(struct psmouse *psmouse)
device_remove_file(&psmouse->ps2dev.serio->dev, &psmouse_attr_smartscroll.dattr);
}
static struct ps2pp_info *get_model_info(unsigned char model)
static const struct ps2pp_info *get_model_info(unsigned char model)
{
static struct ps2pp_info ps2pp_list[] = {
static const struct ps2pp_info ps2pp_list[] = {
{ 12, 0, PS2PP_SIDE_BTN},
{ 13, 0, 0 },
{ 15, PS2PP_KIND_MX, /* MX1000 */
......@@ -215,6 +215,7 @@ static struct ps2pp_info *get_model_info(unsigned char model)
{ 51, 0, 0 },
{ 52, PS2PP_KIND_WHEEL, PS2PP_SIDE_BTN | PS2PP_WHEEL },
{ 53, PS2PP_KIND_WHEEL, PS2PP_WHEEL },
{ 56, PS2PP_KIND_WHEEL, PS2PP_SIDE_BTN | PS2PP_WHEEL }, /* Cordless MouseMan Wheel */
{ 61, PS2PP_KIND_MX, /* MX700 */
PS2PP_WHEEL | PS2PP_SIDE_BTN | PS2PP_TASK_BTN |
PS2PP_EXTRA_BTN | PS2PP_NAV_BTN },
......@@ -244,12 +245,11 @@ static struct ps2pp_info *get_model_info(unsigned char model)
PS2PP_EXTRA_BTN | PS2PP_NAV_BTN },
{ 114, PS2PP_KIND_MX, /* MX310 */
PS2PP_WHEEL | PS2PP_SIDE_BTN |
PS2PP_TASK_BTN | PS2PP_EXTRA_BTN },
{ }
PS2PP_TASK_BTN | PS2PP_EXTRA_BTN }
};
int i;
for (i = 0; ps2pp_list[i].model; i++)
for (i = 0; i < ARRAY_SIZE(ps2pp_list); i++)
if (model == ps2pp_list[i].model)
return &ps2pp_list[i];
......@@ -261,7 +261,8 @@ static struct ps2pp_info *get_model_info(unsigned char model)
* Set up input device's properties based on the detected mouse model.
*/
static void ps2pp_set_model_properties(struct psmouse *psmouse, struct ps2pp_info *model_info,
static void ps2pp_set_model_properties(struct psmouse *psmouse,
const struct ps2pp_info *model_info,
int using_ps2pp)
{
struct input_dev *input_dev = psmouse->dev;
......@@ -327,7 +328,7 @@ int ps2pp_init(struct psmouse *psmouse, int set_properties)
struct ps2dev *ps2dev = &psmouse->ps2dev;
unsigned char param[4];
unsigned char model, buttons;
struct ps2pp_info *model_info;
const struct ps2pp_info *model_info;
int use_ps2pp = 0;
param[0] = 0;
......@@ -349,7 +350,7 @@ int ps2pp_init(struct psmouse *psmouse, int set_properties)
/*
* Do Logitech PS2++ / PS2T++ magic init.
*/
if (model == 97) { /* Touch Pad 3 */
if (model_info->kind == PS2PP_KIND_TP3) { /* Touch Pad 3 */
/* Unprotect RAM */
param[0] = 0x11; param[1] = 0x04; param[2] = 0x68;
......
drivers/input/mouse/psmouse-base.c
View file @ a12f66fc
......@@ -112,8 +112,8 @@ static struct workqueue_struct *kpsmoused_wq;
struct psmouse_protocol {
enum psmouse_type type;
char *name;
char *alias;
const char *name;
const char *alias;
int maxproto;
int (*detect)(struct psmouse *, int);
int (*init)(struct psmouse *);
......@@ -507,15 +507,17 @@ static int thinking_detect(struct psmouse *psmouse, int set_properties)
{
struct ps2dev *ps2dev = &psmouse->ps2dev;
unsigned char param[2];
unsigned char seq[] = { 20, 60, 40, 20, 20, 60, 40, 20, 20, 0 };
static const unsigned char seq[] = { 20, 60, 40, 20, 20, 60, 40, 20, 20 };
int i;
param[0] = 10;
ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
param[0] = 0;
ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
for (i = 0; seq[i]; i++)
ps2_command(ps2dev, seq + i, PSMOUSE_CMD_SETRATE);
for (i = 0; i < ARRAY_SIZE(seq); i++) {
param[0] = seq[i];
ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
}
ps2_command(ps2dev, param, PSMOUSE_CMD_GETID);
if (param[0] != 2)
......@@ -652,7 +654,7 @@ static int psmouse_extensions(struct psmouse *psmouse,
return PSMOUSE_PS2;
}
static struct psmouse_protocol psmouse_protocols[] = {
static const struct psmouse_protocol psmouse_protocols[] = {
{
.type = PSMOUSE_PS2,
.name = "PS/2",
......@@ -726,7 +728,7 @@ static struct psmouse_protocol psmouse_protocols[] = {
},
};
static struct psmouse_protocol *psmouse_protocol_by_type(enum psmouse_type type)
static const struct psmouse_protocol *psmouse_protocol_by_type(enum psmouse_type type)
{
int i;
......@@ -738,9 +740,9 @@ static struct psmouse_protocol *psmouse_protocol_by_type(enum psmouse_type type)
return &psmouse_protocols[0];
}
static struct psmouse_protocol *psmouse_protocol_by_name(const char *name, size_t len)
static const struct psmouse_protocol *psmouse_protocol_by_name(const char *name, size_t len)
{
struct psmouse_protocol *p;
const struct psmouse_protocol *p;
int i;
for (i = 0; i < ARRAY_SIZE(psmouse_protocols); i++) {
......@@ -795,13 +797,15 @@ static int psmouse_probe(struct psmouse *psmouse)
void psmouse_set_resolution(struct psmouse *psmouse, unsigned int resolution)
{
unsigned char params[] = { 0, 1, 2, 2, 3 };
static const unsigned char params[] = { 0, 1, 2, 2, 3 };
unsigned char p;
if (resolution == 0 || resolution > 200)
resolution = 200;
ps2_command(&psmouse->ps2dev, &params[resolution / 50], PSMOUSE_CMD_SETRES);
psmouse->resolution = 25 << params[resolution / 50];
p = params[resolution / 50];
ps2_command(&psmouse->ps2dev, &p, PSMOUSE_CMD_SETRES);
psmouse->resolution = 25 << p;
}
/*
......@@ -810,12 +814,14 @@ void psmouse_set_resolution(struct psmouse *psmouse, unsigned int resolution)
static void psmouse_set_rate(struct psmouse *psmouse, unsigned int rate)
{
unsigned char rates[] = { 200, 100, 80, 60, 40, 20, 10, 0 };
static const unsigned char rates[] = { 200, 100, 80, 60, 40, 20, 10, 0 };
unsigned char r;
int i = 0;
while (rates[i] > rate) i++;
ps2_command(&psmouse->ps2dev, &rates[i], PSMOUSE_CMD_SETRATE);
psmouse->rate = rates[i];
r = rates[i];
ps2_command(&psmouse->ps2dev, &r, PSMOUSE_CMD_SETRATE);
psmouse->rate = r;
}
/*
......@@ -1031,7 +1037,7 @@ static void psmouse_disconnect(struct serio *serio)
mutex_unlock(&psmouse_mutex);
}
static int psmouse_switch_protocol(struct psmouse *psmouse, struct psmouse_protocol *proto)
static int psmouse_switch_protocol(struct psmouse *psmouse, const struct psmouse_protocol *proto)
{
struct input_dev *input_dev = psmouse->dev;
......@@ -1362,7 +1368,7 @@ static ssize_t psmouse_attr_set_protocol(struct psmouse *psmouse, void *data, co
struct serio *serio = psmouse->ps2dev.serio;
struct psmouse *parent = NULL;
struct input_dev *new_dev;
struct psmouse_protocol *proto;
const struct psmouse_protocol *proto;
int retry = 0;
if (!(proto = psmouse_protocol_by_name(buf, count)))
......@@ -1459,7 +1465,7 @@ static ssize_t psmouse_attr_set_resolution(struct psmouse *psmouse, void *data,
static int psmouse_set_maxproto(const char *val, struct kernel_param *kp)
{
struct psmouse_protocol *proto;
const struct psmouse_protocol *proto;
if (!val)
return -EINVAL;
......
drivers/input/mouse/sermouse.c
View file @ a12f66fc
......@@ -42,7 +42,7 @@ MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
static char *sermouse_protocols[] = { "None", "Mouse Systems Mouse", "Sun Mouse", "Microsoft Mouse",
static const char *sermouse_protocols[] = { "None", "Mouse Systems Mouse", "Sun Mouse", "Microsoft Mouse",
"Logitech M+ Mouse", "Microsoft MZ Mouse", "Logitech MZ+ Mouse",
"Logitech MZ++ Mouse"};
......
drivers/input/mouse/synaptics.c
View file @ a12f66fc
......@@ -430,11 +430,11 @@ static void synaptics_process_packet(struct psmouse *psmouse)
static int synaptics_validate_byte(unsigned char packet[], int idx, unsigned char pkt_type)
{
static unsigned char newabs_mask[] = { 0xC8, 0x00, 0x00, 0xC8, 0x00 };
static unsigned char newabs_rel_mask[] = { 0xC0, 0x00, 0x00, 0xC0, 0x00 };
static unsigned char newabs_rslt[] = { 0x80, 0x00, 0x00, 0xC0, 0x00 };
static unsigned char oldabs_mask[] = { 0xC0, 0x60, 0x00, 0xC0, 0x60 };
static unsigned char oldabs_rslt[] = { 0xC0, 0x00, 0x00, 0x80, 0x00 };
static const unsigned char newabs_mask[] = { 0xC8, 0x00, 0x00, 0xC8, 0x00 };
static const unsigned char newabs_rel_mask[] = { 0xC0, 0x00, 0x00, 0xC0, 0x00 };
static const unsigned char newabs_rslt[] = { 0x80, 0x00, 0x00, 0xC0, 0x00 };
static const unsigned char oldabs_mask[] = { 0xC0, 0x60, 0x00, 0xC0, 0x60 };
static const unsigned char oldabs_rslt[] = { 0xC0, 0x00, 0x00, 0x80, 0x00 };
if (idx < 0 || idx > 4)
return 0;
......
drivers/input/mousedev.c
View file @ a12f66fc
......@@ -614,7 +614,7 @@ static unsigned int mousedev_poll(struct file *file, poll_table *wait)
(list->mousedev->exist ? 0 : (POLLHUP | POLLERR));
}
static struct file_operations mousedev_fops = {
static const struct file_operations mousedev_fops = {
.owner = THIS_MODULE,
.read = mousedev_read,
.write = mousedev_write,
......@@ -624,7 +624,8 @@ static struct file_operations mousedev_fops = {
.fasync = mousedev_fasync,
};
static struct input_handle *mousedev_connect(struct input_handler *handler, struct input_dev *dev, struct input_device_id *id)
static struct input_handle *mousedev_connect(struct input_handler *handler, struct input_dev *dev,
const struct input_device_id *id)
{
struct mousedev *mousedev;
struct class_device *cdev;
......@@ -688,7 +689,7 @@ static void mousedev_disconnect(struct input_handle *handle)
}
}
static struct input_device_id mousedev_ids[] = {
static const struct input_device_id mousedev_ids[] = {
{
.flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT | INPUT_DEVICE_ID_MATCH_RELBIT,
.evbit = { BIT(EV_KEY) | BIT(EV_REL) },
......@@ -737,7 +738,12 @@ static int psaux_registered;
static int __init mousedev_init(void)
{
input_register_handler(&mousedev_handler);
struct class_device *cdev;
int error;
error = input_register_handler(&mousedev_handler);
if (error)
return error;
memset(&mousedev_mix, 0, sizeof(struct mousedev));
INIT_LIST_HEAD(&mousedev_mix.list);
......@@ -746,12 +752,20 @@ static int __init mousedev_init(void)
mousedev_mix.exist = 1;
mousedev_mix.minor = MOUSEDEV_MIX;
class_device_create(&input_class, NULL,
cdev = class_device_create(&input_class, NULL,
MKDEV(INPUT_MAJOR, MOUSEDEV_MINOR_BASE + MOUSEDEV_MIX), NULL, "mice");
if (IS_ERR(cdev)) {
input_unregister_handler(&mousedev_handler);
return PTR_ERR(cdev);
}
#ifdef CONFIG_INPUT_MOUSEDEV_PSAUX
if (!(psaux_registered = !misc_register(&psaux_mouse)))
printk(KERN_WARNING "mice: could not misc_register the device\n");
error = misc_register(&psaux_mouse);
if (error)
printk(KERN_WARNING "mice: could not register psaux device, "
"error: %d\n", error);
else
psaux_registered = 1;
#endif
printk(KERN_INFO "mice: PS/2 mouse device common for all mice\n");
......
drivers/input/power.c
View file @ a12f66fc
......@@ -98,7 +98,7 @@ static void power_event(struct input_handle *handle, unsigned int type,
static struct input_handle *power_connect(struct input_handler *handler,
struct input_dev *dev,
struct input_device_id *id)
const struct input_device_id *id)
{
struct input_handle *handle;
......@@ -120,7 +120,7 @@ static void power_disconnect(struct input_handle *handle)
kfree(handle);
}
static struct input_device_id power_ids[] = {
static const struct input_device_id power_ids[] = {
{
.flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT,
.evbit = { BIT(EV_KEY) },
......@@ -150,8 +150,7 @@ static struct input_handler power_handler = {
static int __init power_init(void)
{
input_register_handler(&power_handler);
return 0;
return input_register_handler(&power_handler);
}
static void __exit power_exit(void)
......
drivers/input/serio/i8042-x86ia64io.h
View file @ a12f66fc
......@@ -159,6 +159,13 @@ static struct dmi_system_id __initdata i8042_dmi_nomux_table[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P10"),
},
},
{
.ident = "Toshiba Equium A110",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
DMI_MATCH(DMI_PRODUCT_NAME, "EQUIUM A110"),
},
},
{
.ident = "Alienware Sentia",
.matches = {
......@@ -180,6 +187,13 @@ static struct dmi_system_id __initdata i8042_dmi_nomux_table[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FS115B"),
},
},
{
.ident = "Amoi M636/A737",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Amoi Electronics CO.,LTD."),
DMI_MATCH(DMI_PRODUCT_NAME, "M636/A737 platform"),
},
},
{ }
};
......
drivers/input/serio/i8042.c
View file @ a12f66fc
......@@ -90,46 +90,24 @@ static DEFINE_SPINLOCK(i8042_lock);
struct i8042_port {
struct serio *serio;
int irq;
unsigned char disable;
unsigned char irqen;
unsigned char exists;
signed char mux;
char name[8];
};
#define I8042_KBD_PORT_NO 0
#define I8042_AUX_PORT_NO 1
#define I8042_MUX_PORT_NO 2
#define I8042_NUM_PORTS (I8042_NUM_MUX_PORTS + 2)
static struct i8042_port i8042_ports[I8042_NUM_PORTS] = {
{
.disable = I8042_CTR_KBDDIS,
.irqen = I8042_CTR_KBDINT,
.mux = -1,
.name = "KBD",
},
{
.disable = I8042_CTR_AUXDIS,
.irqen = I8042_CTR_AUXINT,
.mux = -1,
.name = "AUX",
}
};
static struct i8042_port i8042_ports[I8042_NUM_PORTS];
static unsigned char i8042_initial_ctr;
static unsigned char i8042_ctr;
static unsigned char i8042_mux_open;
static unsigned char i8042_mux_present;
static struct timer_list i8042_timer;
static unsigned char i8042_kbd_irq_registered;
static unsigned char i8042_aux_irq_registered;
static struct platform_device *i8042_platform_device;
/*
* Shared IRQ's require a device pointer, but this driver doesn't support
* multiple devices
*/
#define i8042_request_irq_cookie (&i8042_timer)
static irqreturn_t i8042_interrupt(int irq, void *dev_id, struct pt_regs *regs);
/*
......@@ -141,6 +119,7 @@ static irqreturn_t i8042_interrupt(int irq, void *dev_id, struct pt_regs *regs);
static int i8042_wait_read(void)
{
int i = 0;
while ((~i8042_read_status() & I8042_STR_OBF) && (i < I8042_CTL_TIMEOUT)) {
udelay(50);
i++;
......@@ -151,6 +130,7 @@ static int i8042_wait_read(void)
static int i8042_wait_write(void)
{
int i = 0;
while ((i8042_read_status() & I8042_STR_IBF) && (i < I8042_CTL_TIMEOUT)) {
udelay(50);
i++;
......@@ -192,48 +172,57 @@ static int i8042_flush(void)
* encoded in bits 8-11 of the command number.
*/
static int i8042_command(unsigned char *param, int command)
static int __i8042_command(unsigned char *param, int command)
{
unsigned long flags;
int i, retval, auxerr = 0;
int i, error;
if (i8042_noloop && command == I8042_CMD_AUX_LOOP)
return -1;
spin_lock_irqsave(&i8042_lock, flags);
if ((retval = i8042_wait_write()))
goto out;
error = i8042_wait_write();
if (error)
return error;
dbg("%02x -> i8042 (command)", command & 0xff);
i8042_write_command(command & 0xff);
for (i = 0; i < ((command >> 12) & 0xf); i++) {
if ((retval = i8042_wait_write()))
goto out;
error = i8042_wait_write();
if (error)
return error;
dbg("%02x -> i8042 (parameter)", param[i]);
i8042_write_data(param[i]);
}
for (i = 0; i < ((command >> 8) & 0xf); i++) {
if ((retval = i8042_wait_read()))
goto out;
error = i8042_wait_read();
if (error) {
dbg(" -- i8042 (timeout)");
return error;
}
if (command == I8042_CMD_AUX_LOOP &&
!(i8042_read_status() & I8042_STR_AUXDATA)) {
retval = auxerr = -1;
goto out;
dbg(" -- i8042 (auxerr)");
return -1;
}
param[i] = i8042_read_data();
dbg("%02x <- i8042 (return)", param[i]);
}
if (retval)
dbg(" -- i8042 (%s)", auxerr ? "auxerr" : "timeout");
return 0;
}
out:
static int i8042_command(unsigned char *param, int command)
{
unsigned long flags;
int retval;
spin_lock_irqsave(&i8042_lock, flags);
retval = __i8042_command(param, command);
spin_unlock_irqrestore(&i8042_lock, flags);
return retval;
}
......@@ -248,7 +237,7 @@ static int i8042_kbd_write(struct serio *port, unsigned char c)
spin_lock_irqsave(&i8042_lock, flags);
if(!(retval = i8042_wait_write())) {
if (!(retval = i8042_wait_write())) {
dbg("%02x -> i8042 (kbd-data)", c);
i8042_write_data(c);
}
......@@ -286,100 +275,6 @@ static int i8042_aux_write(struct serio *serio, unsigned char c)
return retval;
}
/*
* i8042_activate_port() enables port on a chip.
*/
static int i8042_activate_port(struct i8042_port *port)
{
if (!port->serio)
return -1;
i8042_flush();
/*
* Enable port again here because it is disabled if we are
* resuming (normally it is enabled already).
*/
i8042_ctr &= ~port->disable;
i8042_ctr |= port->irqen;
if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR)) {
i8042_ctr &= ~port->irqen;
return -1;
}
return 0;
}
/*
* i8042_open() is called when a port is open by the higher layer.
* It allocates the interrupt and calls i8042_enable_port.
*/
static int i8042_open(struct serio *serio)
{
struct i8042_port *port = serio->port_data;
if (port->mux != -1)
if (i8042_mux_open++)
return 0;
if (request_irq(port->irq, i8042_interrupt,
IRQF_SHARED, "i8042", i8042_request_irq_cookie)) {
printk(KERN_ERR "i8042.c: Can't get irq %d for %s, unregistering the port.\n", port->irq, port->name);
goto irq_fail;
}
if (i8042_activate_port(port)) {
printk(KERN_ERR "i8042.c: Can't activate %s, unregistering the port\n", port->name);
goto activate_fail;
}
i8042_interrupt(0, NULL, NULL);
return 0;
activate_fail:
free_irq(port->irq, i8042_request_irq_cookie);
irq_fail:
serio_unregister_port_delayed(serio);
return -1;
}
/*
* i8042_close() frees the interrupt, so that it can possibly be used
* by another driver. We never know - if the user doesn't have a mouse,
* the BIOS could have used the AUX interrupt for PCI.
*/
static void i8042_close(struct serio *serio)
{
struct i8042_port *port = serio->port_data;
if (port->mux != -1)
if (--i8042_mux_open)
return;
i8042_ctr &= ~port->irqen;
if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR)) {
printk(KERN_WARNING "i8042.c: Can't write CTR while closing %s.\n", port->name);
/*
* We still want to continue and free IRQ so if more data keeps coming in
* kernel will just ignore the irq.
*/
}
free_irq(port->irq, i8042_request_irq_cookie);
i8042_flush();
}
/*
* i8042_start() is called by serio core when port is about to finish
* registering. It will mark port as existing so i8042_interrupt can
......@@ -423,8 +318,6 @@ static irqreturn_t i8042_interrupt(int irq, void *dev_id, struct pt_regs *regs)
unsigned int port_no;
int ret;
mod_timer(&i8042_timer, jiffies + I8042_POLL_PERIOD);
spin_lock_irqsave(&i8042_lock, flags);
str = i8042_read_status();
if (unlikely(~str & I8042_STR_OBF)) {
......@@ -480,8 +373,8 @@ static irqreturn_t i8042_interrupt(int irq, void *dev_id, struct pt_regs *regs)
port = &i8042_ports[port_no];
dbg("%02x <- i8042 (interrupt, %s, %d%s%s)",
data, port->name, irq,
dbg("%02x <- i8042 (interrupt, %d, %d%s%s)",
data, port_no, irq,
dfl & SERIO_PARITY ? ", bad parity" : "",
dfl & SERIO_TIMEOUT ? ", timeout" : "");
......@@ -493,6 +386,58 @@ static irqreturn_t i8042_interrupt(int irq, void *dev_id, struct pt_regs *regs)
return IRQ_RETVAL(ret);
}
/*
* i8042_enable_kbd_port enables keybaord port on chip
*/
static int i8042_enable_kbd_port(void)
{
i8042_ctr &= ~I8042_CTR_KBDDIS;
i8042_ctr |= I8042_CTR_KBDINT;
if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR)) {
printk(KERN_ERR "i8042.c: Failed to enable KBD port.\n");
return -EIO;
}
return 0;
}
/*
* i8042_enable_aux_port enables AUX (mouse) port on chip
*/
static int i8042_enable_aux_port(void)
{
i8042_ctr &= ~I8042_CTR_AUXDIS;
i8042_ctr |= I8042_CTR_AUXINT;
if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR)) {
printk(KERN_ERR "i8042.c: Failed to enable AUX port.\n");
return -EIO;
}
return 0;
}
/*
* i8042_enable_mux_ports enables 4 individual AUX ports after
* the controller has been switched into Multiplexed mode
*/
static int i8042_enable_mux_ports(void)
{
unsigned char param;
int i;
for (i = 0; i < I8042_NUM_MUX_PORTS; i++) {
i8042_command(&param, I8042_CMD_MUX_PFX + i);
i8042_command(&param, I8042_CMD_AUX_ENABLE);
}
return i8042_enable_aux_port();
}
/*
* i8042_set_mux_mode checks whether the controller has an active
* multiplexor and puts the chip into Multiplexed (1) or Legacy (0) mode.
......@@ -510,8 +455,7 @@ static int i8042_set_mux_mode(unsigned int mode, unsigned char *mux_version)
/*
* Internal loopback test - send three bytes, they should come back from the
* mouse interface, the last should be version. Note that we negate mouseport
* command responses for the i8042_check_aux() routine.
* mouse interface, the last should be version.
*/
param = 0xf0;
......@@ -530,67 +474,67 @@ static int i8042_set_mux_mode(unsigned int mode, unsigned char *mux_version)
return 0;
}
/*
* i8042_enable_mux_ports enables 4 individual AUX ports after
* the controller has been switched into Multiplexed mode
* i8042_check_mux() checks whether the controller supports the PS/2 Active
* Multiplexing specification by Synaptics, Phoenix, Insyde and
* LCS/Telegraphics.
*/
static int i8042_enable_mux_ports(void)
static int __devinit i8042_check_mux(void)
{
unsigned char param;
int i;
unsigned char mux_version;
if (i8042_set_mux_mode(1, &mux_version))
return -1;
/*
* Disable all muxed ports by disabling AUX.
* Workaround for interference with USB Legacy emulation
* that causes a v10.12 MUX to be found.
*/
if (mux_version == 0xAC)
return -1;
printk(KERN_INFO "i8042.c: Detected active multiplexing controller, rev %d.%d.\n",
(mux_version >> 4) & 0xf, mux_version & 0xf);
/*
* Disable all muxed ports by disabling AUX.
*/
i8042_ctr |= I8042_CTR_AUXDIS;
i8042_ctr &= ~I8042_CTR_AUXINT;
if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR)) {
printk(KERN_ERR "i8042.c: Failed to disable AUX port, can't use MUX.\n");
return -1;
return -EIO;
}
/*
* Enable all muxed ports.
*/
for (i = 0; i < I8042_NUM_MUX_PORTS; i++) {
i8042_command(&param, I8042_CMD_MUX_PFX + i);
i8042_command(&param, I8042_CMD_AUX_ENABLE);
}
i8042_mux_present = 1;
return 0;
}
/*
* i8042_check_mux() checks whether the controller supports the PS/2 Active
* Multiplexing specification by Synaptics, Phoenix, Insyde and
* LCS/Telegraphics.
* The following is used to test AUX IRQ delivery.
*/
static struct completion i8042_aux_irq_delivered __devinitdata;
static int i8042_irq_being_tested __devinitdata;
static int __devinit i8042_check_mux(void)
static irqreturn_t __devinit i8042_aux_test_irq(int irq, void *dev_id, struct pt_regs *regs)
{
unsigned char mux_version;
if (i8042_set_mux_mode(1, &mux_version))
return -1;
/* Workaround for interference with USB Legacy emulation */
/* that causes a v10.12 MUX to be found. */
if (mux_version == 0xAC)
return -1;
printk(KERN_INFO "i8042.c: Detected active multiplexing controller, rev %d.%d.\n",
(mux_version >> 4) & 0xf, mux_version & 0xf);
unsigned long flags;
unsigned char str, data;
if (i8042_enable_mux_ports())
return -1;
spin_lock_irqsave(&i8042_lock, flags);
str = i8042_read_status();
if (str & I8042_STR_OBF) {
data = i8042_read_data();
if (i8042_irq_being_tested &&
data == 0xa5 && (str & I8042_STR_AUXDATA))
complete(&i8042_aux_irq_delivered);
}
spin_unlock_irqrestore(&i8042_lock, flags);
i8042_mux_present = 1;
return 0;
return IRQ_HANDLED;
}
......@@ -601,18 +545,10 @@ static int __devinit i8042_check_mux(void)
static int __devinit i8042_check_aux(void)
{
int retval = -1;
int irq_registered = 0;
unsigned long flags;
unsigned char param;
static int i8042_check_aux_cookie;
/*
* Check if AUX irq is available. If it isn't, then there is no point
* in trying to detect AUX presence.
*/
if (request_irq(i8042_ports[I8042_AUX_PORT_NO].irq, i8042_interrupt,
IRQF_SHARED, "i8042", &i8042_check_aux_cookie))
return -1;
free_irq(i8042_ports[I8042_AUX_PORT_NO].irq, &i8042_check_aux_cookie);
/*
* Get rid of bytes in the queue.
......@@ -637,9 +573,9 @@ static int __devinit i8042_check_aux(void)
* AUX ports, we test for this only when the LOOP command failed.
*/
if (i8042_command(&param, I8042_CMD_AUX_TEST)
|| (param && param != 0xfa && param != 0xff))
return -1;
if (i8042_command(&param, I8042_CMD_AUX_TEST) ||
(param && param != 0xfa && param != 0xff))
return -1;
}
/*
......@@ -659,54 +595,80 @@ static int __devinit i8042_check_aux(void)
return -1;
/*
* Disable the interface.
* Test AUX IRQ delivery to make sure BIOS did not grab the IRQ and
* used it for a PCI card or somethig else.
*/
i8042_ctr |= I8042_CTR_AUXDIS;
i8042_ctr &= ~I8042_CTR_AUXINT;
if (i8042_noloop) {
/*
* Without LOOP command we can't test AUX IRQ delivery. Assume the port
* is working and hope we are right.
*/
retval = 0;
goto out;
}
if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR))
return -1;
if (request_irq(I8042_AUX_IRQ, i8042_aux_test_irq, IRQF_SHARED,
"i8042", i8042_platform_device))
goto out;
return 0;
}
irq_registered = 1;
if (i8042_enable_aux_port())
goto out;
spin_lock_irqsave(&i8042_lock, flags);
init_completion(&i8042_aux_irq_delivered);
i8042_irq_being_tested = 1;
param = 0xa5;
retval = __i8042_command(&param, I8042_CMD_AUX_LOOP & 0xf0ff);
spin_unlock_irqrestore(&i8042_lock, flags);
if (retval)
goto out;
if (wait_for_completion_timeout(&i8042_aux_irq_delivered,
msecs_to_jiffies(250)) == 0) {
/*
* i8042_port_register() marks the device as existing,
* registers it, and reports to the user.
* AUX IRQ was never delivered so we need to flush the controller to
* get rid of the byte we put there; otherwise keyboard may not work.
*/
i8042_flush();
retval = -1;
}
static int __devinit i8042_port_register(struct i8042_port *port)
{
i8042_ctr &= ~port->disable;
out:
if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR)) {
printk(KERN_WARNING "i8042.c: Can't write CTR while registering.\n");
kfree(port->serio);
port->serio = NULL;
i8042_ctr |= port->disable;
return -EIO;
}
/*
* Disable the interface.
*/
printk(KERN_INFO "serio: i8042 %s port at %#lx,%#lx irq %d\n",
port->name,
(unsigned long) I8042_DATA_REG,
(unsigned long) I8042_COMMAND_REG,
port->irq);
i8042_ctr |= I8042_CTR_AUXDIS;
i8042_ctr &= ~I8042_CTR_AUXINT;
serio_register_port(port->serio);
if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR))
retval = -1;
return 0;
}
if (irq_registered)
free_irq(I8042_AUX_IRQ, i8042_platform_device);
return retval;
}
static void i8042_timer_func(unsigned long data)
static int i8042_controller_check(void)
{
i8042_interrupt(0, NULL, NULL);
if (i8042_flush() == I8042_BUFFER_SIZE) {
printk(KERN_ERR "i8042.c: No controller found.\n");
return -ENODEV;
}
return 0;
}
static int i8042_ctl_test(void)
static int i8042_controller_selftest(void)
{
unsigned char param;
......@@ -715,13 +677,13 @@ static int i8042_ctl_test(void)
if (i8042_command(&param, I8042_CMD_CTL_TEST)) {
printk(KERN_ERR "i8042.c: i8042 controller self test timeout.\n");
return -1;
return -ENODEV;
}
if (param != I8042_RET_CTL_TEST) {
printk(KERN_ERR "i8042.c: i8042 controller selftest failed. (%#x != %#x)\n",
param, I8042_RET_CTL_TEST);
return -1;
return -EIO;
}
return 0;
......@@ -737,26 +699,13 @@ static int i8042_controller_init(void)
{
unsigned long flags;
/*
* Test the i8042. We need to know if it thinks it's working correctly
* before doing anything else.
*/
if (i8042_flush() == I8042_BUFFER_SIZE) {
printk(KERN_ERR "i8042.c: No controller found.\n");
return -1;
}
if (i8042_ctl_test())
return -1;
/*
* Save the CTR for restoral on unload / reboot.
*/
if (i8042_command(&i8042_ctr, I8042_CMD_CTL_RCTR)) {
printk(KERN_ERR "i8042.c: Can't read CTR while initializing i8042.\n");
return -1;
return -EIO;
}
i8042_initial_ctr = i8042_ctr;
......@@ -805,7 +754,7 @@ static int i8042_controller_init(void)
if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR)) {
printk(KERN_ERR "i8042.c: Can't write CTR while initializing i8042.\n");
return -1;
return -EIO;
}
return 0;
......@@ -813,15 +762,12 @@ static int i8042_controller_init(void)
/*
* Reset the controller.
* Reset the controller and reset CRT to the original value set by BIOS.
*/
static void i8042_controller_reset(void)
{
/*
* Reset the controller if requested.
*/
i8042_ctl_test();
i8042_flush();
/*
* Disable MUX mode if present.
......@@ -831,12 +777,16 @@ static void i8042_controller_reset(void)
i8042_set_mux_mode(0, NULL);
/*
* Restore the original control register setting.
* Reset the controller if requested.
*/
i8042_ctr = i8042_initial_ctr;
i8042_controller_selftest();
if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR))
/*
* Restore the original control register setting.
*/
if (i8042_command(&i8042_initial_ctr, I8042_CMD_CTL_WCTR))
printk(KERN_WARNING "i8042.c: Can't restore CTR.\n");
}
......@@ -850,14 +800,12 @@ static void i8042_controller_cleanup(void)
{
int i;
i8042_flush();
/*
* Reset anything that is connected to the ports.
*/
for (i = 0; i < I8042_NUM_PORTS; i++)
if (i8042_ports[i].exists)
if (i8042_ports[i].serio)
serio_cleanup(i8042_ports[i].serio);
i8042_controller_reset();
......@@ -913,8 +861,7 @@ static long i8042_panic_blink(long count)
static int i8042_suspend(struct platform_device *dev, pm_message_t state)
{
del_timer_sync(&i8042_timer);
i8042_controller_reset();
i8042_controller_cleanup();
return 0;
}
......@@ -926,33 +873,39 @@ static int i8042_suspend(struct platform_device *dev, pm_message_t state)
static int i8042_resume(struct platform_device *dev)
{
int i;
int error;
if (i8042_ctl_test())
return -1;
error = i8042_controller_check();
if (error)
return error;
if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR)) {
printk(KERN_ERR "i8042: Can't write CTR\n");
return -1;
}
if (i8042_mux_present)
if (i8042_set_mux_mode(1, NULL) || i8042_enable_mux_ports())
printk(KERN_WARNING "i8042: failed to resume active multiplexor, mouse won't work.\n");
error = i8042_controller_selftest();
if (error)
return error;
/*
* Activate all ports.
* Restore pre-resume CTR value and disable all ports
*/
for (i = 0; i < I8042_NUM_PORTS; i++)
i8042_activate_port(&i8042_ports[i]);
i8042_ctr |= I8042_CTR_AUXDIS | I8042_CTR_KBDDIS;
i8042_ctr &= ~(I8042_CTR_AUXINT | I8042_CTR_KBDINT);
if (i8042_command(&i8042_ctr, I8042_CMD_CTL_WCTR)) {
printk(KERN_ERR "i8042: Can't write CTR to resume\n");
return -EIO;
}
/*
* Restart timer (for polling "stuck" data)
*/
mod_timer(&i8042_timer, jiffies + I8042_POLL_PERIOD);
if (i8042_mux_present) {
if (i8042_set_mux_mode(1, NULL) || i8042_enable_mux_ports())
printk(KERN_WARNING
"i8042: failed to resume active multiplexor, "
"mouse won't work.\n");
} else if (i8042_ports[I8042_AUX_PORT_NO].serio)
i8042_enable_aux_port();
panic_blink = i8042_panic_blink;
if (i8042_ports[I8042_KBD_PORT_NO].serio)
i8042_enable_kbd_port();
i8042_interrupt(0, NULL, NULL);
return 0;
}
......@@ -978,24 +931,24 @@ static int __devinit i8042_create_kbd_port(void)
serio->id.type = i8042_direct ? SERIO_8042 : SERIO_8042_XL;
serio->write = i8042_dumbkbd ? NULL : i8042_kbd_write;
serio->open = i8042_open;
serio->close = i8042_close;
serio->start = i8042_start;
serio->stop = i8042_stop;
serio->port_data = port;
serio->dev.parent = &i8042_platform_device->dev;
strlcpy(serio->name, "i8042 Kbd Port", sizeof(serio->name));
strlcpy(serio->name, "i8042 KBD port", sizeof(serio->name));
strlcpy(serio->phys, I8042_KBD_PHYS_DESC, sizeof(serio->phys));
port->serio = serio;
port->irq = I8042_KBD_IRQ;
return i8042_port_register(port);
return 0;
}
static int __devinit i8042_create_aux_port(void)
static int __devinit i8042_create_aux_port(int idx)
{
struct serio *serio;
struct i8042_port *port = &i8042_ports[I8042_AUX_PORT_NO];
int port_no = idx < 0 ? I8042_AUX_PORT_NO : I8042_MUX_PORT_NO + idx;
struct i8042_port *port = &i8042_ports[port_no];
serio = kzalloc(sizeof(struct serio), GFP_KERNEL);
if (!serio)
......@@ -1003,111 +956,191 @@ static int __devinit i8042_create_aux_port(void)
serio->id.type = SERIO_8042;
serio->write = i8042_aux_write;
serio->open = i8042_open;
serio->close = i8042_close;
serio->start = i8042_start;
serio->stop = i8042_stop;
serio->port_data = port;
serio->dev.parent = &i8042_platform_device->dev;
strlcpy(serio->name, "i8042 Aux Port", sizeof(serio->name));
strlcpy(serio->phys, I8042_AUX_PHYS_DESC, sizeof(serio->phys));
if (idx < 0) {
strlcpy(serio->name, "i8042 AUX port", sizeof(serio->name));
strlcpy(serio->phys, I8042_AUX_PHYS_DESC, sizeof(serio->phys));
} else {
snprintf(serio->name, sizeof(serio->name), "i8042 AUX%d port", idx);
snprintf(serio->phys, sizeof(serio->phys), I8042_MUX_PHYS_DESC, idx + 1);
}
port->serio = serio;
port->mux = idx;
port->irq = I8042_AUX_IRQ;
return i8042_port_register(port);
return 0;
}
static int __devinit i8042_create_mux_port(int index)
static void __devinit i8042_free_kbd_port(void)
{
struct serio *serio;
struct i8042_port *port = &i8042_ports[I8042_MUX_PORT_NO + index];
kfree(i8042_ports[I8042_KBD_PORT_NO].serio);
i8042_ports[I8042_KBD_PORT_NO].serio = NULL;
}
serio = kzalloc(sizeof(struct serio), GFP_KERNEL);
if (!serio)
return -ENOMEM;
static void __devinit i8042_free_aux_ports(void)
{
int i;
serio->id.type = SERIO_8042;
serio->write = i8042_aux_write;
serio->open = i8042_open;
serio->close = i8042_close;
serio->start = i8042_start;
serio->stop = i8042_stop;
serio->port_data = port;
serio->dev.parent = &i8042_platform_device->dev;
snprintf(serio->name, sizeof(serio->name), "i8042 Aux-%d Port", index);
snprintf(serio->phys, sizeof(serio->phys), I8042_MUX_PHYS_DESC, index + 1);
for (i = I8042_AUX_PORT_NO; i < I8042_NUM_PORTS; i++) {
kfree(i8042_ports[i].serio);
i8042_ports[i].serio = NULL;
}
}
*port = i8042_ports[I8042_AUX_PORT_NO];
port->exists = 0;
snprintf(port->name, sizeof(port->name), "AUX%d", index);
port->mux = index;
port->serio = serio;
static void __devinit i8042_register_ports(void)
{
int i;
return i8042_port_register(port);
for (i = 0; i < I8042_NUM_PORTS; i++) {
if (i8042_ports[i].serio) {
printk(KERN_INFO "serio: %s at %#lx,%#lx irq %d\n",
i8042_ports[i].serio->name,
(unsigned long) I8042_DATA_REG,
(unsigned long) I8042_COMMAND_REG,
i8042_ports[i].irq);
serio_register_port(i8042_ports[i].serio);
}
}
}
static int __devinit i8042_probe(struct platform_device *dev)
static void __devinit i8042_unregister_ports(void)
{
int i, have_ports = 0;
int err;
int i;
init_timer(&i8042_timer);
i8042_timer.function = i8042_timer_func;
for (i = 0; i < I8042_NUM_PORTS; i++) {
if (i8042_ports[i].serio) {
serio_unregister_port(i8042_ports[i].serio);
i8042_ports[i].serio = NULL;
}
}
}
static void i8042_free_irqs(void)
{
if (i8042_aux_irq_registered)
free_irq(I8042_AUX_IRQ, i8042_platform_device);
if (i8042_kbd_irq_registered)
free_irq(I8042_KBD_IRQ, i8042_platform_device);
i8042_aux_irq_registered = i8042_kbd_irq_registered = 0;
}
static int __devinit i8042_setup_aux(void)
{
int (*aux_enable)(void);
int error;
int i;
if (i8042_controller_init())
if (i8042_check_aux())
return -ENODEV;
if (!i8042_noaux && !i8042_check_aux()) {
if (!i8042_nomux && !i8042_check_mux()) {
for (i = 0; i < I8042_NUM_MUX_PORTS; i++) {
err = i8042_create_mux_port(i);
if (err)
goto err_unregister_ports;
}
} else {
err = i8042_create_aux_port();
if (err)
goto err_unregister_ports;
if (i8042_nomux || i8042_check_mux()) {
error = i8042_create_aux_port(-1);
if (error)
goto err_free_ports;
aux_enable = i8042_enable_aux_port;
} else {
for (i = 0; i < I8042_NUM_MUX_PORTS; i++) {
error = i8042_create_aux_port(i);
if (error)
goto err_free_ports;
}
have_ports = 1;
aux_enable = i8042_enable_mux_ports;
}
if (!i8042_nokbd) {
err = i8042_create_kbd_port();
if (err)
goto err_unregister_ports;
have_ports = 1;
}
error = request_irq(I8042_AUX_IRQ, i8042_interrupt, IRQF_SHARED,
"i8042", i8042_platform_device);
if (error)
goto err_free_ports;
if (!have_ports) {
err = -ENODEV;
goto err_controller_cleanup;
}
if (aux_enable())
goto err_free_irq;
mod_timer(&i8042_timer, jiffies + I8042_POLL_PERIOD);
i8042_aux_irq_registered = 1;
return 0;
err_unregister_ports:
for (i = 0; i < I8042_NUM_PORTS; i++)
if (i8042_ports[i].serio)
serio_unregister_port(i8042_ports[i].serio);
err_controller_cleanup:
i8042_controller_cleanup();
err_free_irq:
free_irq(I8042_AUX_IRQ, i8042_platform_device);
err_free_ports:
i8042_free_aux_ports();
return error;
}
return err;
static int __devinit i8042_setup_kbd(void)
{
int error;
error = i8042_create_kbd_port();
if (error)
return error;
error = request_irq(I8042_KBD_IRQ, i8042_interrupt, IRQF_SHARED,
"i8042", i8042_platform_device);
if (error)
goto err_free_port;
error = i8042_enable_kbd_port();
if (error)
goto err_free_irq;
i8042_kbd_irq_registered = 1;
return 0;
err_free_irq:
free_irq(I8042_KBD_IRQ, i8042_platform_device);
err_free_port:
i8042_free_kbd_port();
return error;
}
static int __devexit i8042_remove(struct platform_device *dev)
static int __devinit i8042_probe(struct platform_device *dev)
{
int i;
int error;
i8042_controller_cleanup();
error = i8042_controller_selftest();
if (error)
return error;
for (i = 0; i < I8042_NUM_PORTS; i++)
if (i8042_ports[i].exists)
serio_unregister_port(i8042_ports[i].serio);
error = i8042_controller_init();
if (error)
return error;
if (!i8042_noaux) {
error = i8042_setup_aux();
if (error && error != -ENODEV && error != -EBUSY)
goto out_fail;
}
if (!i8042_nokbd) {
error = i8042_setup_kbd();
if (error)
goto out_fail;
}
del_timer_sync(&i8042_timer);
/*
* Ok, everything is ready, let's register all serio ports
*/
i8042_register_ports();
return 0;
out_fail:
i8042_free_aux_ports(); /* in case KBD failed but AUX not */
i8042_free_irqs();
i8042_controller_reset();
return error;
}
static int __devexit i8042_remove(struct platform_device *dev)
{
i8042_unregister_ports();
i8042_free_irqs();
i8042_controller_reset();
return 0;
}
......@@ -1134,8 +1167,9 @@ static int __init i8042_init(void)
if (err)
return err;
i8042_ports[I8042_AUX_PORT_NO].irq = I8042_AUX_IRQ;
i8042_ports[I8042_KBD_PORT_NO].irq = I8042_KBD_IRQ;
err = i8042_controller_check();
if (err)
goto err_platform_exit;
err = platform_driver_register(&i8042_driver);
if (err)
......@@ -1151,6 +1185,8 @@ static int __init i8042_init(void)
if (err)
goto err_free_device;
panic_blink = i8042_panic_blink;
return 0;
err_free_device:
......@@ -1167,7 +1203,6 @@ static void __exit i8042_exit(void)
{
platform_device_unregister(i8042_platform_device);
platform_driver_unregister(&i8042_driver);
i8042_platform_exit();
panic_blink = NULL;
......
drivers/input/serio/i8042.h
View file @ a12f66fc
......@@ -36,15 +36,6 @@
#define I8042_CTL_TIMEOUT 10000
/*
* When the device isn't opened and it's interrupts aren't used, we poll it at
* regular intervals to see if any characters arrived. If yes, we can start
* probing for any mouse / keyboard connected. This is the period of the
* polling.
*/
#define I8042_POLL_PERIOD HZ/20
/*
* Status register bits.
*/
......
drivers/input/serio/libps2.c
View file @ a12f66fc
......@@ -27,15 +27,6 @@ MODULE_AUTHOR("Dmitry Torokhov <dtor@mail.ru>");
MODULE_DESCRIPTION("PS/2 driver library");
MODULE_LICENSE("GPL");
EXPORT_SYMBOL(ps2_init);
EXPORT_SYMBOL(ps2_sendbyte);
EXPORT_SYMBOL(ps2_drain);
EXPORT_SYMBOL(ps2_command);
EXPORT_SYMBOL(ps2_schedule_command);
EXPORT_SYMBOL(ps2_handle_ack);
EXPORT_SYMBOL(ps2_handle_response);
EXPORT_SYMBOL(ps2_cmd_aborted);
/* Work structure to schedule execution of a command */
struct ps2work {
struct work_struct work;
......@@ -71,6 +62,7 @@ int ps2_sendbyte(struct ps2dev *ps2dev, unsigned char byte, int timeout)
return -ps2dev->nak;
}
EXPORT_SYMBOL(ps2_sendbyte);
/*
* ps2_drain() waits for device to transmit requested number of bytes
......@@ -96,15 +88,16 @@ void ps2_drain(struct ps2dev *ps2dev, int maxbytes, int timeout)
msecs_to_jiffies(timeout));
mutex_unlock(&ps2dev->cmd_mutex);
}
EXPORT_SYMBOL(ps2_drain);
/*
* ps2_is_keyboard_id() checks received ID byte against the list of
* known keyboard IDs.
*/
static inline int ps2_is_keyboard_id(char id_byte)
int ps2_is_keyboard_id(char id_byte)
{
static char keyboard_ids[] = {
const static char keyboard_ids[] = {
0xab, /* Regular keyboards */
0xac, /* NCD Sun keyboard */
0x2b, /* Trust keyboard, translated */
......@@ -115,6 +108,7 @@ static inline int ps2_is_keyboard_id(char id_byte)
return memchr(keyboard_ids, id_byte, sizeof(keyboard_ids)) != NULL;
}
EXPORT_SYMBOL(ps2_is_keyboard_id);
/*
* ps2_adjust_timeout() is called after receiving 1st byte of command
......@@ -138,6 +132,19 @@ static int ps2_adjust_timeout(struct ps2dev *ps2dev, int command, int timeout)
break;
case PS2_CMD_GETID:
/*
* Microsoft Natural Elite keyboard responds to
* the GET ID command as it were a mouse, with
* a single byte. Fail the command so atkbd will
* use alternative probe to detect it.
*/
if (ps2dev->cmdbuf[1] == 0xaa) {
serio_pause_rx(ps2dev->serio);
ps2dev->flags = 0;
serio_continue_rx(ps2dev->serio);
timeout = 0;
}
/*
* If device behind the port is not a keyboard there
* won't be 2nd byte of ID response.
......@@ -237,6 +244,7 @@ int ps2_command(struct ps2dev *ps2dev, unsigned char *param, int command)
mutex_unlock(&ps2dev->cmd_mutex);
return rc;
}
EXPORT_SYMBOL(ps2_command);
/*
* ps2_execute_scheduled_command() sends a command, previously scheduled by
......@@ -279,6 +287,7 @@ int ps2_schedule_command(struct ps2dev *ps2dev, unsigned char *param, int comman
return 0;
}
EXPORT_SYMBOL(ps2_schedule_command);
/*
* ps2_init() initializes ps2dev structure
......@@ -290,6 +299,7 @@ void ps2_init(struct ps2dev *ps2dev, struct serio *serio)
init_waitqueue_head(&ps2dev->wait);
ps2dev->serio = serio;
}
EXPORT_SYMBOL(ps2_init);
/*
* ps2_handle_ack() is supposed to be used in interrupt handler
......@@ -335,6 +345,7 @@ int ps2_handle_ack(struct ps2dev *ps2dev, unsigned char data)
return 1;
}
EXPORT_SYMBOL(ps2_handle_ack);
/*
* ps2_handle_response() is supposed to be used in interrupt handler
......@@ -360,6 +371,7 @@ int ps2_handle_response(struct ps2dev *ps2dev, unsigned char data)
return 1;
}
EXPORT_SYMBOL(ps2_handle_response);
void ps2_cmd_aborted(struct ps2dev *ps2dev)
{
......@@ -371,4 +383,4 @@ void ps2_cmd_aborted(struct ps2dev *ps2dev)
ps2dev->flags = 0;
}
EXPORT_SYMBOL(ps2_cmd_aborted);
drivers/input/touchscreen/Kconfig
View file @ a12f66fc
......@@ -108,4 +108,40 @@ config TOUCHSCREEN_HP600
To compile this driver as a module, choose M here: the
module will be called hp680_ts_input.
config TOUCHSCREEN_PENMOUNT
tristate "Penmount serial touchscreen"
select SERIO
help
Say Y here if you have a Penmount serial touchscreen connected to
your system.
If unsure, say N.
To compile this driver as a module, choose M here: the
module will be called penmount.
config TOUCHSCREEN_TOUCHRIGHT
tristate "Touchright serial touchscreen"
select SERIO
help
Say Y here if you have a Touchright serial touchscreen connected to
your system.
If unsure, say N.
To compile this driver as a module, choose M here: the
module will be called touchright.
config TOUCHSCREEN_TOUCHWIN
tristate "Touchwin serial touchscreen"
select SERIO
help
Say Y here if you have a Touchwin serial touchscreen connected to
your system.
If unsure, say N.
To compile this driver as a module, choose M here: the
module will be called touchwin.
endif
drivers/input/touchscreen/Makefile
View file @ a12f66fc
......@@ -12,3 +12,6 @@ obj-$(CONFIG_TOUCHSCREEN_ELO) += elo.o
obj-$(CONFIG_TOUCHSCREEN_MTOUCH) += mtouch.o
obj-$(CONFIG_TOUCHSCREEN_MK712) += mk712.o
obj-$(CONFIG_TOUCHSCREEN_HP600) += hp680_ts_input.o
obj-$(CONFIG_TOUCHSCREEN_PENMOUNT) += penmount.o
obj-$(CONFIG_TOUCHSCREEN_TOUCHRIGHT) += touchright.o
obj-$(CONFIG_TOUCHSCREEN_TOUCHWIN) += touchwin.o
drivers/input/touchscreen/elo.c
View file @ a12f66fc
......@@ -23,6 +23,7 @@
#include <linux/input.h>
#include <linux/serio.h>
#include <linux/init.h>
#include <linux/ctype.h>
#define DRIVER_DESC "Elo serial touchscreen driver"
......@@ -34,7 +35,19 @@ MODULE_LICENSE("GPL");
* Definitions & global arrays.
*/
#define ELO_MAX_LENGTH 10
#define ELO_MAX_LENGTH 10
#define ELO10_PACKET_LEN 8
#define ELO10_TOUCH 0x03
#define ELO10_PRESSURE 0x80
#define ELO10_LEAD_BYTE 'U'
#define ELO10_ID_CMD 'i'
#define ELO10_TOUCH_PACKET 'T'
#define ELO10_ACK_PACKET 'A'
#define ELI10_ID_PACKET 'I'
/*
* Per-touchscreen data.
......@@ -43,51 +56,67 @@ MODULE_LICENSE("GPL");
struct elo {
struct input_dev *dev;
struct serio *serio;
struct mutex cmd_mutex;
struct completion cmd_done;
int id;
int idx;
unsigned char expected_packet;
unsigned char csum;
unsigned char data[ELO_MAX_LENGTH];
unsigned char response[ELO10_PACKET_LEN];
char phys[32];
};
static void elo_process_data_10(struct elo* elo, unsigned char data, struct pt_regs *regs)
static void elo_process_data_10(struct elo *elo, unsigned char data, struct pt_regs *regs)
{
struct input_dev *dev = elo->dev;
elo->csum += elo->data[elo->idx] = data;
elo->data[elo->idx] = data;
switch (elo->idx++) {
case 0:
if (data != 'U') {
elo->csum = 0xaa;
if (data != ELO10_LEAD_BYTE) {
pr_debug("elo: unsynchronized data: 0x%02x\n", data);
elo->idx = 0;
elo->csum = 0;
}
break;
case 1:
if (data != 'T') {
elo->idx = 0;
elo->csum = 0;
}
break;
case 9:
if (elo->csum) {
elo->idx = 0;
if (data != elo->csum) {
pr_debug("elo: bad checksum: 0x%02x, expected 0x%02x\n",
data, elo->csum);
break;
}
if (elo->data[1] != elo->expected_packet) {
if (elo->data[1] != ELO10_TOUCH_PACKET)
pr_debug("elo: unexpected packet: 0x%02x\n",
elo->data[1]);
break;
}
if (likely(elo->data[1] == ELO10_TOUCH_PACKET)) {
input_regs(dev, regs);
input_report_abs(dev, ABS_X, (elo->data[4] << 8) | elo->data[3]);
input_report_abs(dev, ABS_Y, (elo->data[6] << 8) | elo->data[5]);
input_report_abs(dev, ABS_PRESSURE, (elo->data[8] << 8) | elo->data[7]);
input_report_key(dev, BTN_TOUCH, elo->data[8] || elo->data[7]);
if (elo->data[2] & ELO10_PRESSURE)
input_report_abs(dev, ABS_PRESSURE,
(elo->data[8] << 8) | elo->data[7]);
input_report_key(dev, BTN_TOUCH, elo->data[2] & ELO10_TOUCH);
input_sync(dev);
} else if (elo->data[1] == ELO10_ACK_PACKET) {
if (elo->data[2] == '0')
elo->expected_packet = ELO10_TOUCH_PACKET;
complete(&elo->cmd_done);
} else {
memcpy(elo->response, &elo->data[1], ELO10_PACKET_LEN);
elo->expected_packet = ELO10_ACK_PACKET;
}
elo->idx = 0;
elo->csum = 0;
break;
}
elo->csum += data;
}
static void elo_process_data_6(struct elo* elo, unsigned char data, struct pt_regs *regs)
static void elo_process_data_6(struct elo *elo, unsigned char data, struct pt_regs *regs)
{
struct input_dev *dev = elo->dev;
......@@ -135,7 +164,7 @@ static void elo_process_data_6(struct elo* elo, unsigned char data, struct pt_re
}
}
static void elo_process_data_3(struct elo* elo, unsigned char data, struct pt_regs *regs)
static void elo_process_data_3(struct elo *elo, unsigned char data, struct pt_regs *regs)
{
struct input_dev *dev = elo->dev;
......@@ -161,7 +190,7 @@ static void elo_process_data_3(struct elo* elo, unsigned char data, struct pt_re
static irqreturn_t elo_interrupt(struct serio *serio,
unsigned char data, unsigned int flags, struct pt_regs *regs)
{
struct elo* elo = serio_get_drvdata(serio);
struct elo *elo = serio_get_drvdata(serio);
switch(elo->id) {
case 0:
......@@ -181,17 +210,81 @@ static irqreturn_t elo_interrupt(struct serio *serio,
return IRQ_HANDLED;
}
static int elo_command_10(struct elo *elo, unsigned char *packet)
{
int rc = -1;
int i;
unsigned char csum = 0xaa + ELO10_LEAD_BYTE;
mutex_lock(&elo->cmd_mutex);
serio_pause_rx(elo->serio);
elo->expected_packet = toupper(packet[0]);
init_completion(&elo->cmd_done);
serio_continue_rx(elo->serio);
if (serio_write(elo->serio, ELO10_LEAD_BYTE))
goto out;
for (i = 0; i < ELO10_PACKET_LEN; i++) {
csum += packet[i];
if (serio_write(elo->serio, packet[i]))
goto out;
}
if (serio_write(elo->serio, csum))
goto out;
wait_for_completion_timeout(&elo->cmd_done, HZ);
if (elo->expected_packet == ELO10_TOUCH_PACKET) {
/* We are back in reporting mode, the command was ACKed */
memcpy(packet, elo->response, ELO10_PACKET_LEN);
rc = 0;
}
out:
mutex_unlock(&elo->cmd_mutex);
return rc;
}
static int elo_setup_10(struct elo *elo)
{
static const char *elo_types[] = { "Accu", "Dura", "Intelli", "Carroll" };
struct input_dev *dev = elo->dev;
unsigned char packet[ELO10_PACKET_LEN] = { ELO10_ID_CMD };
if (elo_command_10(elo, packet))
return -1;
dev->id.version = (packet[5] << 8) | packet[4];
input_set_abs_params(dev, ABS_X, 96, 4000, 0, 0);
input_set_abs_params(dev, ABS_Y, 96, 4000, 0, 0);
if (packet[3] & ELO10_PRESSURE)
input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0);
printk(KERN_INFO "elo: %sTouch touchscreen, fw: %02x.%02x, "
"features: %x02x, controller: 0x%02x\n",
elo_types[(packet[1] -'0') & 0x03],
packet[5], packet[4], packet[3], packet[7]);
return 0;
}
/*
* elo_disconnect() is the opposite of elo_connect()
*/
static void elo_disconnect(struct serio *serio)
{
struct elo* elo = serio_get_drvdata(serio);
struct elo *elo = serio_get_drvdata(serio);
input_get_device(elo->dev);
input_unregister_device(elo->dev);
serio_close(serio);
serio_set_drvdata(serio, NULL);
input_put_device(elo->dev);
kfree(elo);
}
......@@ -211,12 +304,15 @@ static int elo_connect(struct serio *serio, struct serio_driver *drv)
input_dev = input_allocate_device();
if (!elo || !input_dev) {
err = -ENOMEM;
goto fail;
goto fail1;
}
elo->serio = serio;
elo->id = serio->id.id;
elo->dev = input_dev;
elo->expected_packet = ELO10_TOUCH_PACKET;
mutex_init(&elo->cmd_mutex);
init_completion(&elo->cmd_done);
snprintf(elo->phys, sizeof(elo->phys), "%s/input0", serio->phys);
input_dev->private = elo;
......@@ -231,12 +327,17 @@ static int elo_connect(struct serio *serio, struct serio_driver *drv)
input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
input_dev->keybit[LONG(BTN_TOUCH)] = BIT(BTN_TOUCH);
serio_set_drvdata(serio, elo);
err = serio_open(serio, drv);
if (err)
goto fail2;
switch (elo->id) {
case 0: /* 10-byte protocol */
input_set_abs_params(input_dev, ABS_X, 96, 4000, 0, 0);
input_set_abs_params(input_dev, ABS_Y, 96, 4000, 0, 0);
input_set_abs_params(input_dev, ABS_PRESSURE, 0, 255, 0, 0);
if (elo_setup_10(elo))
goto fail3;
break;
case 1: /* 6-byte protocol */
......@@ -253,17 +354,15 @@ static int elo_connect(struct serio *serio, struct serio_driver *drv)
break;
}
serio_set_drvdata(serio, elo);
err = serio_open(serio, drv);
err = input_register_device(elo->dev);
if (err)
goto fail;
goto fail3;
input_register_device(elo->dev);
return 0;
fail: serio_set_drvdata(serio, NULL);
input_free_device(input_dev);
fail3: serio_close(serio);
fail2: serio_set_drvdata(serio, NULL);
fail1: input_free_device(input_dev);
kfree(elo);
return err;
}
......
drivers/input/touchscreen/penmount.c 0 → 100644
View file @ a12f66fc
/*
* Penmount serial touchscreen driver
*
* Copyright (c) 2006 Rick Koch <n1gp@hotmail.com>
*
* Based on ELO driver (drivers/input/touchscreen/elo.c)
* Copyright (c) 2004 Vojtech Pavlik
*/
/*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*/
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/input.h>
#include <linux/serio.h>
#include <linux/init.h>
#define DRIVER_DESC "Penmount serial touchscreen driver"
MODULE_AUTHOR("Rick Koch <n1gp@hotmail.com>");
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
/*
* Definitions & global arrays.
*/
#define PM_MAX_LENGTH 5
/*
* Per-touchscreen data.
*/
struct pm {
struct input_dev *dev;
struct serio *serio;
int idx;
unsigned char data[PM_MAX_LENGTH];
char phys[32];
};
static irqreturn_t pm_interrupt(struct serio *serio,
unsigned char data, unsigned int flags, struct pt_regs *regs)
{
struct pm *pm = serio_get_drvdata(serio);
struct input_dev *dev = pm->dev;
pm->data[pm->idx] = data;
if (pm->data[0] & 0x80) {
if (PM_MAX_LENGTH == ++pm->idx) {
input_regs(dev, regs);
input_report_abs(dev, ABS_X, pm->data[2] * 128 + pm->data[1]);
input_report_abs(dev, ABS_Y, pm->data[4] * 128 + pm->data[3]);
input_report_key(dev, BTN_TOUCH, !!(pm->data[0] & 0x40));
input_sync(dev);
pm->idx = 0;
}
}
return IRQ_HANDLED;
}
/*
* pm_disconnect() is the opposite of pm_connect()
*/
static void pm_disconnect(struct serio *serio)
{
struct pm *pm = serio_get_drvdata(serio);
input_get_device(pm->dev);
input_unregister_device(pm->dev);
serio_close(serio);
serio_set_drvdata(serio, NULL);
input_put_device(pm->dev);
kfree(pm);
}
/*
* pm_connect() is the routine that is called when someone adds a
* new serio device that supports Gunze protocol and registers it as
* an input device.
*/
static int pm_connect(struct serio *serio, struct serio_driver *drv)
{
struct pm *pm;
struct input_dev *input_dev;
int err;
pm = kzalloc(sizeof(struct pm), GFP_KERNEL);
input_dev = input_allocate_device();
if (!pm || !input_dev) {
err = -ENOMEM;
goto fail1;
}
pm->serio = serio;
pm->dev = input_dev;
snprintf(pm->phys, sizeof(pm->phys), "%s/input0", serio->phys);
input_dev->private = pm;
input_dev->name = "Penmount Serial TouchScreen";
input_dev->phys = pm->phys;
input_dev->id.bustype = BUS_RS232;
input_dev->id.vendor = SERIO_PENMOUNT;
input_dev->id.product = 0;
input_dev->id.version = 0x0100;
input_dev->cdev.dev = &serio->dev;
input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
input_dev->keybit[LONG(BTN_TOUCH)] = BIT(BTN_TOUCH);
input_set_abs_params(pm->dev, ABS_X, 0, 0x3ff, 0, 0);
input_set_abs_params(pm->dev, ABS_Y, 0, 0x3ff, 0, 0);
serio_set_drvdata(serio, pm);
err = serio_open(serio, drv);
if (err)
goto fail2;
err = input_register_device(pm->dev);
if (err)
goto fail3;
return 0;
fail3: serio_close(serio);
fail2: serio_set_drvdata(serio, NULL);
fail1: input_free_device(input_dev);
kfree(pm);
return err;
}
/*
* The serio driver structure.
*/
static struct serio_device_id pm_serio_ids[] = {
{
.type = SERIO_RS232,
.proto = SERIO_PENMOUNT,
.id = SERIO_ANY,
.extra = SERIO_ANY,
},
{ 0 }
};
MODULE_DEVICE_TABLE(serio, pm_serio_ids);
static struct serio_driver pm_drv = {
.driver = {
.name = "penmountlpc",
},
.description = DRIVER_DESC,
.id_table = pm_serio_ids,
.interrupt = pm_interrupt,
.connect = pm_connect,
.disconnect = pm_disconnect,
};
/*
* The functions for inserting/removing us as a module.
*/
static int __init pm_init(void)
{
serio_register_driver(&pm_drv);
return 0;
}
static void __exit pm_exit(void)
{
serio_unregister_driver(&pm_drv);
}
module_init(pm_init);
module_exit(pm_exit);
drivers/input/touchscreen/touchright.c 0 → 100644
View file @ a12f66fc
/*
* Touchright serial touchscreen driver
*
* Copyright (c) 2006 Rick Koch <n1gp@hotmail.com>
*
* Based on MicroTouch driver (drivers/input/touchscreen/mtouch.c)
* Copyright (c) 2004 Vojtech Pavlik
* and Dan Streetman <ddstreet@ieee.org>
*/
/*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*/
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/input.h>
#include <linux/serio.h>
#include <linux/init.h>
#define DRIVER_DESC "Touchright serial touchscreen driver"
MODULE_AUTHOR("Rick Koch <n1gp@hotmail.com>");
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
/*
* Definitions & global arrays.
*/
#define TR_FORMAT_TOUCH_BIT 0x01
#define TR_FORMAT_STATUS_BYTE 0x40
#define TR_FORMAT_STATUS_MASK ~TR_FORMAT_TOUCH_BIT
#define TR_LENGTH 5
#define TR_MIN_XC 0
#define TR_MAX_XC 0x1ff
#define TR_MIN_YC 0
#define TR_MAX_YC 0x1ff
/*
* Per-touchscreen data.
*/
struct tr {
struct input_dev *dev;
struct serio *serio;
int idx;
unsigned char data[TR_LENGTH];
char phys[32];
};
static irqreturn_t tr_interrupt(struct serio *serio,
unsigned char data, unsigned int flags, struct pt_regs *regs)
{
struct tr *tr = serio_get_drvdata(serio);
struct input_dev *dev = tr->dev;
tr->data[tr->idx] = data;
if ((tr->data[0] & TR_FORMAT_STATUS_MASK) == TR_FORMAT_STATUS_BYTE) {
if (++tr->idx == TR_LENGTH) {
input_regs(dev, regs);
input_report_abs(dev, ABS_X,
(tr->data[1] << 5) | (tr->data[2] >> 1));
input_report_abs(dev, ABS_Y,
(tr->data[3] << 5) | (tr->data[4] >> 1));
input_report_key(dev, BTN_TOUCH,
tr->data[0] & TR_FORMAT_TOUCH_BIT);
input_sync(dev);
tr->idx = 0;
}
}
return IRQ_HANDLED;
}
/*
* tr_disconnect() is the opposite of tr_connect()
*/
static void tr_disconnect(struct serio *serio)
{
struct tr *tr = serio_get_drvdata(serio);
input_get_device(tr->dev);
input_unregister_device(tr->dev);
serio_close(serio);
serio_set_drvdata(serio, NULL);
input_put_device(tr->dev);
kfree(tr);
}
/*
* tr_connect() is the routine that is called when someone adds a
* new serio device that supports the Touchright protocol and registers it as
* an input device.
*/
static int tr_connect(struct serio *serio, struct serio_driver *drv)
{
struct tr *tr;
struct input_dev *input_dev;
int err;
tr = kzalloc(sizeof(struct tr), GFP_KERNEL);
input_dev = input_allocate_device();
if (!tr || !input_dev) {
err = -ENOMEM;
goto fail1;
}
tr->serio = serio;
tr->dev = input_dev;
snprintf(tr->phys, sizeof(tr->phys), "%s/input0", serio->phys);
input_dev->private = tr;
input_dev->name = "Touchright Serial TouchScreen";
input_dev->phys = tr->phys;
input_dev->id.bustype = BUS_RS232;
input_dev->id.vendor = SERIO_TOUCHRIGHT;
input_dev->id.product = 0;
input_dev->id.version = 0x0100;
input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
input_dev->keybit[LONG(BTN_TOUCH)] = BIT(BTN_TOUCH);
input_set_abs_params(tr->dev, ABS_X, TR_MIN_XC, TR_MAX_XC, 0, 0);
input_set_abs_params(tr->dev, ABS_Y, TR_MIN_YC, TR_MAX_YC, 0, 0);
serio_set_drvdata(serio, tr);
err = serio_open(serio, drv);
if (err)
goto fail2;
err = input_register_device(tr->dev);
if (err)
goto fail3;
return 0;
fail3: serio_close(serio);
fail2: serio_set_drvdata(serio, NULL);
fail1: input_free_device(input_dev);
kfree(tr);
return err;
}
/*
* The serio driver structure.
*/
static struct serio_device_id tr_serio_ids[] = {
{
.type = SERIO_RS232,
.proto = SERIO_TOUCHRIGHT,
.id = SERIO_ANY,
.extra = SERIO_ANY,
},
{ 0 }
};
MODULE_DEVICE_TABLE(serio, tr_serio_ids);
static struct serio_driver tr_drv = {
.driver = {
.name = "touchright",
},
.description = DRIVER_DESC,
.id_table = tr_serio_ids,
.interrupt = tr_interrupt,
.connect = tr_connect,
.disconnect = tr_disconnect,
};
/*
* The functions for inserting/removing us as a module.
*/
static int __init tr_init(void)
{
serio_register_driver(&tr_drv);
return 0;
}
static void __exit tr_exit(void)
{
serio_unregister_driver(&tr_drv);
}
module_init(tr_init);
module_exit(tr_exit);
drivers/input/touchscreen/touchwin.c 0 → 100644
View file @ a12f66fc
/*
* Touchwindow serial touchscreen driver
*
* Copyright (c) 2006 Rick Koch <n1gp@hotmail.com>
*
* Based on MicroTouch driver (drivers/input/touchscreen/mtouch.c)
* Copyright (c) 2004 Vojtech Pavlik
* and Dan Streetman <ddstreet@ieee.org>
*/
/*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*/
/*
* 2005/02/19 Rick Koch:
* The Touchwindow I used is made by Edmark Corp. and
* constantly outputs a stream of 0's unless it is touched.
* It then outputs 3 bytes: X, Y, and a copy of Y.
*/
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/input.h>
#include <linux/serio.h>
#include <linux/init.h>
#define DRIVER_DESC "Touchwindow serial touchscreen driver"
MODULE_AUTHOR("Rick Koch <n1gp@hotmail.com>");
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
/*
* Definitions & global arrays.
*/
#define TW_LENGTH 3
#define TW_MIN_XC 0
#define TW_MAX_XC 0xff
#define TW_MIN_YC 0
#define TW_MAX_YC 0xff
/*
* Per-touchscreen data.
*/
struct tw {
struct input_dev *dev;
struct serio *serio;
int idx;
int touched;
unsigned char data[TW_LENGTH];
char phys[32];
};
static irqreturn_t tw_interrupt(struct serio *serio,
unsigned char data, unsigned int flags, struct pt_regs *regs)
{
struct tw *tw = serio_get_drvdata(serio);
struct input_dev *dev = tw->dev;
if (data) { /* touch */
tw->touched = 1;
tw->data[tw->idx++] = data;
/* verify length and that the two Y's are the same */
if (tw->idx == TW_LENGTH && tw->data[1] == tw->data[2]) {
input_regs(dev, regs);
input_report_abs(dev, ABS_X, tw->data[0]);
input_report_abs(dev, ABS_Y, tw->data[1]);
input_report_key(dev, BTN_TOUCH, 1);
input_sync(dev);
tw->idx = 0;
}
} else if (tw->touched) { /* untouch */
input_report_key(dev, BTN_TOUCH, 0);
input_sync(dev);
tw->idx = 0;
tw->touched = 0;
}
return IRQ_HANDLED;
}
/*
* tw_disconnect() is the opposite of tw_connect()
*/
static void tw_disconnect(struct serio *serio)
{
struct tw *tw = serio_get_drvdata(serio);
input_get_device(tw->dev);
input_unregister_device(tw->dev);
serio_close(serio);
serio_set_drvdata(serio, NULL);
input_put_device(tw->dev);
kfree(tw);
}
/*
* tw_connect() is the routine that is called when someone adds a
* new serio device that supports the Touchwin protocol and registers it as
* an input device.
*/
static int tw_connect(struct serio *serio, struct serio_driver *drv)
{
struct tw *tw;
struct input_dev *input_dev;
int err;
tw = kzalloc(sizeof(struct tw), GFP_KERNEL);
input_dev = input_allocate_device();
if (!tw || !input_dev) {
err = -ENOMEM;
goto fail1;
}
tw->serio = serio;
tw->dev = input_dev;
snprintf(tw->phys, sizeof(tw->phys), "%s/input0", serio->phys);
input_dev->private = tw;
input_dev->name = "Touchwindow Serial TouchScreen";
input_dev->phys = tw->phys;
input_dev->id.bustype = BUS_RS232;
input_dev->id.vendor = SERIO_TOUCHWIN;
input_dev->id.product = 0;
input_dev->id.version = 0x0100;
input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
input_dev->keybit[LONG(BTN_TOUCH)] = BIT(BTN_TOUCH);
input_set_abs_params(tw->dev, ABS_X, TW_MIN_XC, TW_MAX_XC, 0, 0);
input_set_abs_params(tw->dev, ABS_Y, TW_MIN_YC, TW_MAX_YC, 0, 0);
serio_set_drvdata(serio, tw);
err = serio_open(serio, drv);
if (err)
goto fail2;
err = input_register_device(tw->dev);
if (err)
goto fail3;
return 0;
fail3: serio_close(serio);
fail2: serio_set_drvdata(serio, NULL);
fail1: input_free_device(input_dev);
kfree(tw);
return err;
}
/*
* The serio driver structure.
*/
static struct serio_device_id tw_serio_ids[] = {
{
.type = SERIO_RS232,
.proto = SERIO_TOUCHWIN,
.id = SERIO_ANY,
.extra = SERIO_ANY,
},
{ 0 }
};
MODULE_DEVICE_TABLE(serio, tw_serio_ids);
static struct serio_driver tw_drv = {
.driver = {
.name = "touchwin",
},
.description = DRIVER_DESC,
.id_table = tw_serio_ids,
.interrupt = tw_interrupt,
.connect = tw_connect,
.disconnect = tw_disconnect,
};
/*
* The functions for inserting/removing us as a module.
*/
static int __init tw_init(void)
{
serio_register_driver(&tw_drv);
return 0;
}
static void __exit tw_exit(void)
{
serio_unregister_driver(&tw_drv);
}
module_init(tw_init);
module_exit(tw_exit);
drivers/input/tsdev.c
View file @ a12f66fc
......@@ -135,8 +135,6 @@ struct tsdev_list {
#define TS_GET_CAL _IOR(IOC_H3600_TS_MAGIC, 10, struct ts_calibration)
#define TS_SET_CAL _IOW(IOC_H3600_TS_MAGIC, 11, struct ts_calibration)
static struct input_handler tsdev_handler;
static struct tsdev *tsdev_table[TSDEV_MINORS/2];
static int tsdev_fasync(int fd, struct file *file, int on)
......@@ -263,7 +261,7 @@ static int tsdev_ioctl(struct inode *inode, struct file *file,
return retval;
}
static struct file_operations tsdev_fops = {
static const struct file_operations tsdev_fops = {
.owner = THIS_MODULE,
.open = tsdev_open,
.release = tsdev_release,
......@@ -370,7 +368,7 @@ static void tsdev_event(struct input_handle *handle, unsigned int type,
static struct input_handle *tsdev_connect(struct input_handler *handler,
struct input_dev *dev,
struct input_device_id *id)
const struct input_device_id *id)
{
struct tsdev *tsdev;
struct class_device *cdev;
......@@ -443,7 +441,7 @@ static void tsdev_disconnect(struct input_handle *handle)
tsdev_free(tsdev);
}
static struct input_device_id tsdev_ids[] = {
static const struct input_device_id tsdev_ids[] = {
{
.flags = INPUT_DEVICE_ID_MATCH_EVBIT | INPUT_DEVICE_ID_MATCH_KEYBIT | INPUT_DEVICE_ID_MATCH_RELBIT,
.evbit = { BIT(EV_KEY) | BIT(EV_REL) },
......@@ -481,9 +479,7 @@ static struct input_handler tsdev_handler = {
static int __init tsdev_init(void)
{
input_register_handler(&tsdev_handler);
printk(KERN_INFO "ts: Compaq touchscreen protocol output\n");
return 0;
return input_register_handler(&tsdev_handler);
}
static void __exit tsdev_exit(void)
......
drivers/usb/input/Kconfig
View file @ a12f66fc
......@@ -60,16 +60,17 @@ config HID_FF
If unsure, say N.
config HID_PID
bool "PID Devices (Microsoft Sidewinder Force Feedback 2)"
bool "PID device support"
depends on HID_FF
help
Say Y here if you have a PID-compliant joystick and wish to enable force
feedback for it. The Microsoft Sidewinder Force Feedback 2 is one such
device.
Say Y here if you have a PID-compliant device and wish to enable force
feedback for it. Microsoft Sidewinder Force Feedback 2 is one of such
devices.
config LOGITECH_FF
bool "Logitech WingMan *3D support"
depends on HID_FF
select INPUT_FF_MEMLESS if USB_HID
help
Say Y here if you have one of these devices:
- Logitech WingMan Cordless RumblePad
......@@ -81,12 +82,21 @@ config LOGITECH_FF
config THRUSTMASTER_FF
bool "ThrustMaster FireStorm Dual Power 2 support (EXPERIMENTAL)"
depends on HID_FF && EXPERIMENTAL
select INPUT_FF_MEMLESS if USB_HID
help
Say Y here if you have a THRUSTMASTER FireStore Dual Power 2,
and want to enable force feedback support for it.
Note: if you say N here, this device will still be supported, but without
force feedback.
config ZEROPLUS_FF
bool "Zeroplus based game controller support"
depends on HID_FF
select INPUT_FF_MEMLESS if USB_HID
help
Say Y here if you have a Zeroplus based game controller and want to
enable force feedback for it.
config USB_HIDDEV
bool "/dev/hiddev raw HID device support"
depends on USB_HID
......
drivers/usb/input/Makefile
View file @ a12f66fc
......@@ -15,7 +15,7 @@ ifeq ($(CONFIG_USB_HIDINPUT),y)
usbhid-objs += hid-input.o
endif
ifeq ($(CONFIG_HID_PID),y)
usbhid-objs += pid.o
usbhid-objs += hid-pidff.o
endif
ifeq ($(CONFIG_LOGITECH_FF),y)
usbhid-objs += hid-lgff.o
......@@ -23,6 +23,9 @@ endif
ifeq ($(CONFIG_THRUSTMASTER_FF),y)
usbhid-objs += hid-tmff.o
endif
ifeq ($(CONFIG_ZEROPLUS_FF),y)
usbhid-objs += hid-zpff.o
endif
ifeq ($(CONFIG_HID_FF),y)
usbhid-objs += hid-ff.o
endif
......
drivers/usb/input/hid-core.c
View file @ a12f66fc
......@@ -543,8 +543,6 @@ static void hid_free_device(struct hid_device *device)
{
unsigned i,j;
hid_ff_exit(device);
for (i = 0; i < HID_REPORT_TYPES; i++) {
struct hid_report_enum *report_enum = device->report_enum + i;
......@@ -1109,7 +1107,7 @@ int hid_set_field(struct hid_field *field, unsigned offset, __s32 value)
/*
* Find a report field with a specified HID usage.
*/
#if 0
struct hid_field *hid_find_field_by_usage(struct hid_device *hid, __u32 wanted_usage, int type)
{
struct hid_report *report;
......@@ -1121,6 +1119,7 @@ struct hid_field *hid_find_field_by_usage(struct hid_device *hid, __u32 wanted_u
return report->field[i];
return NULL;
}
#endif /* 0 */
static int hid_submit_out(struct hid_device *hid)
{
......
drivers/usb/input/hid-ff.c
View file @ a12f66fc
......@@ -44,45 +44,38 @@ struct hid_ff_initializer {
int (*init)(struct hid_device*);
};
/*
* We try pidff when no other driver is found because PID is the
* standards compliant way of implementing force feedback in HID.
* pidff_init() will quickly abort if the device doesn't appear to
* be a PID device
*/
static struct hid_ff_initializer inits[] = {
#ifdef CONFIG_LOGITECH_FF
{0x46d, 0xc211, hid_lgff_init}, // Logitech Cordless rumble pad
{0x46d, 0xc283, hid_lgff_init}, // Logitech Wingman Force 3d
{0x46d, 0xc295, hid_lgff_init}, // Logitech MOMO force wheel
{0x46d, 0xc219, hid_lgff_init}, // Logitech Cordless rumble pad 2
#endif
#ifdef CONFIG_HID_PID
{0x45e, 0x001b, hid_pid_init},
{ 0x46d, 0xc211, hid_lgff_init }, /* Logitech Cordless rumble pad */
{ 0x46d, 0xc283, hid_lgff_init }, /* Logitech Wingman Force 3d */
{ 0x46d, 0xc295, hid_lgff_init }, /* Logitech MOMO force wheel */
{ 0x46d, 0xc219, hid_lgff_init }, /* Logitech Cordless rumble pad 2 */
#endif
#ifdef CONFIG_THRUSTMASTER_FF
{0x44f, 0xb304, hid_tmff_init},
{ 0x44f, 0xb304, hid_tmff_init },
#endif
{0, 0, NULL} /* Terminating entry */
#ifdef CONFIG_ZEROPLUS_FF
{ 0xc12, 0x0005, hid_zpff_init },
{ 0xc12, 0x0030, hid_zpff_init },
#endif
{ 0, 0, hid_pidff_init} /* Matches anything */
};
static struct hid_ff_initializer *hid_get_ff_init(__u16 idVendor,
__u16 idProduct)
{
struct hid_ff_initializer *init;
for (init = inits;
init->idVendor
&& !(init->idVendor == idVendor
&& init->idProduct == idProduct);
init++);
return init->idVendor? init : NULL;
}
int hid_ff_init(struct hid_device* hid)
{
struct hid_ff_initializer *init;
int vendor = le16_to_cpu(hid->dev->descriptor.idVendor);
int product = le16_to_cpu(hid->dev->descriptor.idProduct);
init = hid_get_ff_init(le16_to_cpu(hid->dev->descriptor.idVendor),
le16_to_cpu(hid->dev->descriptor.idProduct));
for (init = inits; init->idVendor; init++)
if (init->idVendor == vendor && init->idProduct == product)
break;
if (!init) {
dbg("hid_ff_init could not find initializer");
return -ENOSYS;
}
return init->init(hid);
}
drivers/usb/input/hid-input.c
View file @ a12f66fc
......@@ -65,11 +65,9 @@ static const struct {
#define map_rel(c) do { usage->code = c; usage->type = EV_REL; bit = input->relbit; max = REL_MAX; } while (0)
#define map_key(c) do { usage->code = c; usage->type = EV_KEY; bit = input->keybit; max = KEY_MAX; } while (0)
#define map_led(c) do { usage->code = c; usage->type = EV_LED; bit = input->ledbit; max = LED_MAX; } while (0)
#define map_ff(c) do { usage->code = c; usage->type = EV_FF; bit = input->ffbit; max = FF_MAX; } while (0)
#define map_abs_clear(c) do { map_abs(c); clear_bit(c, bit); } while (0)
#define map_key_clear(c) do { map_key(c); clear_bit(c, bit); } while (0)
#define map_ff_effect(c) do { set_bit(c, input->ffbit); } while (0)
#ifdef CONFIG_USB_HIDINPUT_POWERBOOK
......@@ -525,23 +523,7 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
case HID_UP_PID:
set_bit(EV_FF, input->evbit);
switch(usage->hid & HID_USAGE) {
case 0x26: map_ff_effect(FF_CONSTANT); goto ignore;
case 0x27: map_ff_effect(FF_RAMP); goto ignore;
case 0x28: map_ff_effect(FF_CUSTOM); goto ignore;
case 0x30: map_ff_effect(FF_SQUARE); map_ff_effect(FF_PERIODIC); goto ignore;
case 0x31: map_ff_effect(FF_SINE); map_ff_effect(FF_PERIODIC); goto ignore;
case 0x32: map_ff_effect(FF_TRIANGLE); map_ff_effect(FF_PERIODIC); goto ignore;
case 0x33: map_ff_effect(FF_SAW_UP); map_ff_effect(FF_PERIODIC); goto ignore;
case 0x34: map_ff_effect(FF_SAW_DOWN); map_ff_effect(FF_PERIODIC); goto ignore;
case 0x40: map_ff_effect(FF_SPRING); goto ignore;
case 0x41: map_ff_effect(FF_DAMPER); goto ignore;
case 0x42: map_ff_effect(FF_INERTIA); goto ignore;
case 0x43: map_ff_effect(FF_FRICTION); goto ignore;
case 0x7e: map_ff(FF_GAIN); break;
case 0x83: input->ff_effects_max = field->value[0]; goto ignore;
case 0x98: map_ff(FF_AUTOCENTER); break;
case 0xa4: map_key_clear(BTN_DEAD); break;
default: goto ignore;
}
......@@ -698,8 +680,7 @@ void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct
}
if (usage->hid == (HID_UP_PID | 0x83UL)) { /* Simultaneous Effects Max */
input->ff_effects_max = value;
dbg("Maximum Effects - %d",input->ff_effects_max);
dbg("Maximum Effects - %d",value);
return;
}
......@@ -748,7 +729,7 @@ static int hidinput_input_event(struct input_dev *dev, unsigned int type, unsign
int offset;
if (type == EV_FF)
return hid_ff_event(hid, dev, type, code, value);
return input_ff_event(dev, type, code, value);
if (type != EV_LED)
return -1;
......
drivers/usb/input/hid-lgff.c
View file @ a12f66fc
/*
* $$
*
* Force feedback support for hid-compliant for some of the devices from
* Logitech, namely:
* - WingMan Cordless RumblePad
* - WingMan Force 3D
*
* Copyright (c) 2002-2004 Johann Deneux
* Copyright (c) 2006 Anssi Hannula <anssi.hannula@gmail.com>
*/
/*
......@@ -29,495 +28,117 @@
*/
#include <linux/input.h>
#include <linux/sched.h>
//#define DEBUG
#include <linux/usb.h>
#include <linux/circ_buf.h>
#include "hid.h"
#include "fixp-arith.h"
/* Periodicity of the update */
#define PERIOD (HZ/10)
#define RUN_AT(t) (jiffies + (t))
/* Effect status */
#define EFFECT_STARTED 0 /* Effect is going to play after some time
(ff_replay.delay) */
#define EFFECT_PLAYING 1 /* Effect is being played */
#define EFFECT_USED 2
// For lgff_device::flags
#define DEVICE_CLOSING 0 /* The driver is being unitialised */
/* Check that the current process can access an effect */
#define CHECK_OWNERSHIP(effect) (current->pid == 0 \
|| effect.owner == current->pid)
#define LGFF_CHECK_OWNERSHIP(i, l) \
(i>=0 && i<LGFF_EFFECTS \
&& test_bit(EFFECT_USED, l->effects[i].flags) \
&& CHECK_OWNERSHIP(l->effects[i]))
#define LGFF_EFFECTS 8
struct device_type {
u16 idVendor;
u16 idProduct;
signed short *ff;
};
struct lgff_effect {
pid_t owner;
struct ff_effect effect;
unsigned long flags[1];
unsigned int count; /* Number of times left to play */
unsigned long started_at; /* When the effect started to play */
};
struct lgff_device {
struct hid_device* hid;
struct hid_report* constant;
struct hid_report* rumble;
struct hid_report* condition;
struct lgff_effect effects[LGFF_EFFECTS];
spinlock_t lock; /* device-level lock. Having locks on
a per-effect basis could be nice, but
isn't really necessary */
unsigned long flags[1]; /* Contains various information about the
state of the driver for this device */
struct timer_list timer;
const signed short *ff;
};
/* Callbacks */
static void hid_lgff_exit(struct hid_device* hid);
static int hid_lgff_event(struct hid_device *hid, struct input_dev *input,
unsigned int type, unsigned int code, int value);
static int hid_lgff_flush(struct input_dev *input, struct file *file);
static int hid_lgff_upload_effect(struct input_dev *input,
struct ff_effect *effect);
static int hid_lgff_erase(struct input_dev *input, int id);
/* Local functions */
static void hid_lgff_input_init(struct hid_device* hid);
static void hid_lgff_timer(unsigned long timer_data);
static struct hid_report* hid_lgff_duplicate_report(struct hid_report*);
static void hid_lgff_delete_report(struct hid_report*);
static signed short ff_rumble[] = {
static const signed short ff_rumble[] = {
FF_RUMBLE,
-1
};
static signed short ff_joystick[] = {
static const signed short ff_joystick[] = {
FF_CONSTANT,
-1
};
static struct device_type devices[] = {
{0x046d, 0xc211, ff_rumble},
{0x046d, 0xc219, ff_rumble},
{0x046d, 0xc283, ff_joystick},
{0x0000, 0x0000, ff_joystick}
static const struct device_type devices[] = {
{ 0x046d, 0xc211, ff_rumble },
{ 0x046d, 0xc219, ff_rumble },
{ 0x046d, 0xc283, ff_joystick },
{ 0x0000, 0x0000, ff_joystick }
};
static int hid_lgff_play(struct input_dev *dev, void *data, struct ff_effect *effect)
{
struct hid_device *hid = dev->private;
struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
struct hid_report *report = list_entry(report_list->next, struct hid_report, list);
int x, y;
unsigned int left, right;
#define CLAMP(x) if (x < 0) x = 0; if (x > 0xff) x = 0xff
switch (effect->type) {
case FF_CONSTANT:
x = effect->u.ramp.start_level + 0x7f; /* 0x7f is center */
y = effect->u.ramp.end_level + 0x7f;
CLAMP(x);
CLAMP(y);
report->field[0]->value[0] = 0x51;
report->field[0]->value[1] = 0x08;
report->field[0]->value[2] = x;
report->field[0]->value[3] = y;
dbg("(x, y)=(%04x, %04x)", x, y);
hid_submit_report(hid, report, USB_DIR_OUT);
break;
case FF_RUMBLE:
right = effect->u.rumble.strong_magnitude;
left = effect->u.rumble.weak_magnitude;
right = right * 0xff / 0xffff;
left = left * 0xff / 0xffff;
CLAMP(left);
CLAMP(right);
report->field[0]->value[0] = 0x42;
report->field[0]->value[1] = 0x00;
report->field[0]->value[2] = left;
report->field[0]->value[3] = right;
dbg("(left, right)=(%04x, %04x)", left, right);
hid_submit_report(hid, report, USB_DIR_OUT);
break;
}
return 0;
}
int hid_lgff_init(struct hid_device* hid)
{
struct lgff_device *private;
struct hid_report* report;
struct hid_field* field;
struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);
struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
struct input_dev *dev = hidinput->input;
struct hid_report *report;
struct hid_field *field;
int error;
int i, j;
/* Find the report to use */
if (list_empty(&hid->report_enum[HID_OUTPUT_REPORT].report_list)) {
if (list_empty(report_list)) {
err("No output report found");
return -1;
}
/* Check that the report looks ok */
report = (struct hid_report*)hid->report_enum[HID_OUTPUT_REPORT].report_list.next;
report = list_entry(report_list->next, struct hid_report, list);
if (!report) {
err("NULL output report");
return -1;
}
field = report->field[0];
if (!field) {
err("NULL field");
return -1;
}
private = kzalloc(sizeof(struct lgff_device), GFP_KERNEL);
if (!private)
return -1;
hid->ff_private = private;
/* Input init */
hid_lgff_input_init(hid);
private->constant = hid_lgff_duplicate_report(report);
if (!private->constant) {
kfree(private);
return -1;
}
private->constant->field[0]->value[0] = 0x51;
private->constant->field[0]->value[1] = 0x08;
private->constant->field[0]->value[2] = 0x7f;
private->constant->field[0]->value[3] = 0x7f;
private->rumble = hid_lgff_duplicate_report(report);
if (!private->rumble) {
hid_lgff_delete_report(private->constant);
kfree(private);
return -1;
}
private->rumble->field[0]->value[0] = 0x42;
private->condition = hid_lgff_duplicate_report(report);
if (!private->condition) {
hid_lgff_delete_report(private->rumble);
hid_lgff_delete_report(private->constant);
kfree(private);
return -1;
}
private->hid = hid;
spin_lock_init(&private->lock);
init_timer(&private->timer);
private->timer.data = (unsigned long)private;
private->timer.function = hid_lgff_timer;
/* Event and exit callbacks */
hid->ff_exit = hid_lgff_exit;
hid->ff_event = hid_lgff_event;
/* Start the update task */
private->timer.expires = RUN_AT(PERIOD);
add_timer(&private->timer); /*TODO: only run the timer when at least
one effect is playing */
printk(KERN_INFO "Force feedback for Logitech force feedback devices by Johann Deneux <johann.deneux@it.uu.se>\n");
return 0;
}
static struct hid_report* hid_lgff_duplicate_report(struct hid_report* report)
{
struct hid_report* ret;
ret = kmalloc(sizeof(struct lgff_device), GFP_KERNEL);
if (!ret)
return NULL;
*ret = *report;
ret->field[0] = kmalloc(sizeof(struct hid_field), GFP_KERNEL);
if (!ret->field[0]) {
kfree(ret);
return NULL;
}
*ret->field[0] = *report->field[0];
ret->field[0]->value = kzalloc(sizeof(s32[8]), GFP_KERNEL);
if (!ret->field[0]->value) {
kfree(ret->field[0]);
kfree(ret);
return NULL;
}
return ret;
}
static void hid_lgff_delete_report(struct hid_report* report)
{
if (report) {
kfree(report->field[0]->value);
kfree(report->field[0]);
kfree(report);
}
}
static void hid_lgff_input_init(struct hid_device* hid)
{
struct device_type* dev = devices;
signed short* ff;
u16 idVendor = le16_to_cpu(hid->dev->descriptor.idVendor);
u16 idProduct = le16_to_cpu(hid->dev->descriptor.idProduct);
struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);
struct input_dev *input_dev = hidinput->input;
while (dev->idVendor && (idVendor != dev->idVendor || idProduct != dev->idProduct))
dev++;
for (ff = dev->ff; *ff >= 0; ff++)
set_bit(*ff, input_dev->ffbit);
input_dev->upload_effect = hid_lgff_upload_effect;
input_dev->flush = hid_lgff_flush;
set_bit(EV_FF, input_dev->evbit);
input_dev->ff_effects_max = LGFF_EFFECTS;
}
static void hid_lgff_exit(struct hid_device* hid)
{
struct lgff_device *lgff = hid->ff_private;
set_bit(DEVICE_CLOSING, lgff->flags);
del_timer_sync(&lgff->timer);
hid_lgff_delete_report(lgff->condition);
hid_lgff_delete_report(lgff->rumble);
hid_lgff_delete_report(lgff->constant);
kfree(lgff);
}
static int hid_lgff_event(struct hid_device *hid, struct input_dev* input,
unsigned int type, unsigned int code, int value)
{
struct lgff_device *lgff = hid->ff_private;
struct lgff_effect *effect = lgff->effects + code;
unsigned long flags;
if (type != EV_FF) return -EINVAL;
if (!LGFF_CHECK_OWNERSHIP(code, lgff)) return -EACCES;
if (value < 0) return -EINVAL;
spin_lock_irqsave(&lgff->lock, flags);
if (value > 0) {
if (test_bit(EFFECT_STARTED, effect->flags)) {
spin_unlock_irqrestore(&lgff->lock, flags);
return -EBUSY;
}
if (test_bit(EFFECT_PLAYING, effect->flags)) {
spin_unlock_irqrestore(&lgff->lock, flags);
return -EBUSY;
}
effect->count = value;
if (effect->effect.replay.delay) {
set_bit(EFFECT_STARTED, effect->flags);
} else {
set_bit(EFFECT_PLAYING, effect->flags);
}
effect->started_at = jiffies;
}
else { /* value == 0 */
clear_bit(EFFECT_STARTED, effect->flags);
clear_bit(EFFECT_PLAYING, effect->flags);
}
spin_unlock_irqrestore(&lgff->lock, flags);
return 0;
}
/* Erase all effects this process owns */
static int hid_lgff_flush(struct input_dev *dev, struct file *file)
{
struct hid_device *hid = dev->private;
struct lgff_device *lgff = hid->ff_private;
int i;
for (i=0; i<dev->ff_effects_max; ++i) {
/*NOTE: no need to lock here. The only times EFFECT_USED is
modified is when effects are uploaded or when an effect is
erased. But a process cannot close its dev/input/eventX fd
and perform ioctls on the same fd all at the same time */
if ( current->pid == lgff->effects[i].owner
&& test_bit(EFFECT_USED, lgff->effects[i].flags)) {
if (hid_lgff_erase(dev, i))
warn("erase effect %d failed", i);
}
}
return 0;
}
static int hid_lgff_erase(struct input_dev *dev, int id)
{
struct hid_device *hid = dev->private;
struct lgff_device *lgff = hid->ff_private;
unsigned long flags;
if (!LGFF_CHECK_OWNERSHIP(id, lgff)) return -EACCES;
spin_lock_irqsave(&lgff->lock, flags);
lgff->effects[id].flags[0] = 0;
spin_unlock_irqrestore(&lgff->lock, flags);
return 0;
}
static int hid_lgff_upload_effect(struct input_dev* input,
struct ff_effect* effect)
{
struct hid_device *hid = input->private;
struct lgff_device *lgff = hid->ff_private;
struct lgff_effect new;
int id;
unsigned long flags;
dbg("ioctl rumble");
if (!test_bit(effect->type, input->ffbit)) return -EINVAL;
spin_lock_irqsave(&lgff->lock, flags);
if (effect->id == -1) {
int i;
for (i=0; i<LGFF_EFFECTS && test_bit(EFFECT_USED, lgff->effects[i].flags); ++i);
if (i >= LGFF_EFFECTS) {
spin_unlock_irqrestore(&lgff->lock, flags);
return -ENOSPC;
for (i = 0; i < ARRAY_SIZE(devices); i++) {
if (dev->id.vendor == devices[i].idVendor &&
dev->id.product == devices[i].idProduct) {
for (j = 0; devices[i].ff[j] >= 0; j++)
set_bit(devices[i].ff[j], dev->ffbit);
break;
}
effect->id = i;
lgff->effects[i].owner = current->pid;
lgff->effects[i].flags[0] = 0;
set_bit(EFFECT_USED, lgff->effects[i].flags);
}
else if (!LGFF_CHECK_OWNERSHIP(effect->id, lgff)) {
spin_unlock_irqrestore(&lgff->lock, flags);
return -EACCES;
}
id = effect->id;
new = lgff->effects[id];
new.effect = *effect;
if (test_bit(EFFECT_STARTED, lgff->effects[id].flags)
|| test_bit(EFFECT_STARTED, lgff->effects[id].flags)) {
/* Changing replay parameters is not allowed (for the time
being) */
if (new.effect.replay.delay != lgff->effects[id].effect.replay.delay
|| new.effect.replay.length != lgff->effects[id].effect.replay.length) {
spin_unlock_irqrestore(&lgff->lock, flags);
return -ENOSYS;
}
lgff->effects[id] = new;
error = input_ff_create_memless(dev, NULL, hid_lgff_play);
if (error)
return error;
} else {
lgff->effects[id] = new;
}
printk(KERN_INFO "Force feedback for Logitech force feedback devices by Johann Deneux <johann.deneux@it.uu.se>\n");
spin_unlock_irqrestore(&lgff->lock, flags);
return 0;
}
static void hid_lgff_timer(unsigned long timer_data)
{
struct lgff_device *lgff = (struct lgff_device*)timer_data;
struct hid_device *hid = lgff->hid;
unsigned long flags;
int x = 0x7f, y = 0x7f; // Coordinates of constant effects
unsigned int left = 0, right = 0; // Rumbling
int i;
spin_lock_irqsave(&lgff->lock, flags);
for (i=0; i<LGFF_EFFECTS; ++i) {
struct lgff_effect* effect = lgff->effects +i;
if (test_bit(EFFECT_PLAYING, effect->flags)) {
switch (effect->effect.type) {
case FF_CONSTANT: {
//TODO: handle envelopes
int degrees = effect->effect.direction * 360 >> 16;
x += fixp_mult(fixp_sin(degrees),
fixp_new16(effect->effect.u.constant.level));
y += fixp_mult(-fixp_cos(degrees),
fixp_new16(effect->effect.u.constant.level));
} break;
case FF_RUMBLE:
right += effect->effect.u.rumble.strong_magnitude;
left += effect->effect.u.rumble.weak_magnitude;
break;
};
/* One run of the effect is finished playing */
if (time_after(jiffies,
effect->started_at
+ effect->effect.replay.delay*HZ/1000
+ effect->effect.replay.length*HZ/1000)) {
dbg("Finished playing once %d", i);
if (--effect->count <= 0) {
dbg("Stopped %d", i);
clear_bit(EFFECT_PLAYING, effect->flags);
}
else {
dbg("Start again %d", i);
if (effect->effect.replay.length != 0) {
clear_bit(EFFECT_PLAYING, effect->flags);
set_bit(EFFECT_STARTED, effect->flags);
}
effect->started_at = jiffies;
}
}
} else if (test_bit(EFFECT_STARTED, lgff->effects[i].flags)) {
/* Check if we should start playing the effect */
if (time_after(jiffies,
lgff->effects[i].started_at
+ lgff->effects[i].effect.replay.delay*HZ/1000)) {
dbg("Now playing %d", i);
clear_bit(EFFECT_STARTED, lgff->effects[i].flags);
set_bit(EFFECT_PLAYING, lgff->effects[i].flags);
}
}
}
#define CLAMP(x) if (x < 0) x = 0; if (x > 0xff) x = 0xff
// Clamp values
CLAMP(x);
CLAMP(y);
CLAMP(left);
CLAMP(right);
#undef CLAMP
if (x != lgff->constant->field[0]->value[2]
|| y != lgff->constant->field[0]->value[3]) {
lgff->constant->field[0]->value[2] = x;
lgff->constant->field[0]->value[3] = y;
dbg("(x,y)=(%04x, %04x)", x, y);
hid_submit_report(hid, lgff->constant, USB_DIR_OUT);
}
if (left != lgff->rumble->field[0]->value[2]
|| right != lgff->rumble->field[0]->value[3]) {
lgff->rumble->field[0]->value[2] = left;
lgff->rumble->field[0]->value[3] = right;
dbg("(left,right)=(%04x, %04x)", left, right);
hid_submit_report(hid, lgff->rumble, USB_DIR_OUT);
}
if (!test_bit(DEVICE_CLOSING, lgff->flags)) {
lgff->timer.expires = RUN_AT(PERIOD);
add_timer(&lgff->timer);
}
spin_unlock_irqrestore(&lgff->lock, flags);
}
drivers/usb/input/hid-pidff.c 0 → 100644
View file @ a12f66fc
/*
* Force feedback driver for USB HID PID compliant devices
*
* Copyright (c) 2005, 2006 Anssi Hannula <anssi.hannula@gmail.com>
*/
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* #define DEBUG */
#define debug(format, arg...) pr_debug("hid-pidff: " format "\n" , ## arg)
#include <linux/sched.h>
#include <linux/input.h>
#include <linux/usb.h>
#include "hid.h"
#define PID_EFFECTS_MAX 64
/* Report usage table used to put reports into an array */
#define PID_SET_EFFECT 0
#define PID_EFFECT_OPERATION 1
#define PID_DEVICE_GAIN 2
#define PID_POOL 3
#define PID_BLOCK_LOAD 4
#define PID_BLOCK_FREE 5
#define PID_DEVICE_CONTROL 6
#define PID_CREATE_NEW_EFFECT 7
#define PID_REQUIRED_REPORTS 7
#define PID_SET_ENVELOPE 8
#define PID_SET_CONDITION 9
#define PID_SET_PERIODIC 10
#define PID_SET_CONSTANT 11
#define PID_SET_RAMP 12
static const u8 pidff_reports[] = {
0x21, 0x77, 0x7d, 0x7f, 0x89, 0x90, 0x96, 0xab,
0x5a, 0x5f, 0x6e, 0x73, 0x74
};
/* device_control is really 0x95, but 0x96 specified as it is the usage of
the only field in that report */
/* Value usage tables used to put fields and values into arrays */
#define PID_EFFECT_BLOCK_INDEX 0
#define PID_DURATION 1
#define PID_GAIN 2
#define PID_TRIGGER_BUTTON 3
#define PID_TRIGGER_REPEAT_INT 4
#define PID_DIRECTION_ENABLE 5
#define PID_START_DELAY 6
static const u8 pidff_set_effect[] = {
0x22, 0x50, 0x52, 0x53, 0x54, 0x56, 0xa7
};
#define PID_ATTACK_LEVEL 1
#define PID_ATTACK_TIME 2
#define PID_FADE_LEVEL 3
#define PID_FADE_TIME 4
static const u8 pidff_set_envelope[] = { 0x22, 0x5b, 0x5c, 0x5d, 0x5e };
#define PID_PARAM_BLOCK_OFFSET 1
#define PID_CP_OFFSET 2
#define PID_POS_COEFFICIENT 3
#define PID_NEG_COEFFICIENT 4
#define PID_POS_SATURATION 5
#define PID_NEG_SATURATION 6
#define PID_DEAD_BAND 7
static const u8 pidff_set_condition[] = {
0x22, 0x23, 0x60, 0x61, 0x62, 0x63, 0x64, 0x65
};
#define PID_MAGNITUDE 1
#define PID_OFFSET 2
#define PID_PHASE 3
#define PID_PERIOD 4
static const u8 pidff_set_periodic[] = { 0x22, 0x70, 0x6f, 0x71, 0x72 };
static const u8 pidff_set_constant[] = { 0x22, 0x70 };
#define PID_RAMP_START 1
#define PID_RAMP_END 2
static const u8 pidff_set_ramp[] = { 0x22, 0x75, 0x76 };
#define PID_RAM_POOL_AVAILABLE 1
static const u8 pidff_block_load[] = { 0x22, 0xac };
#define PID_LOOP_COUNT 1
static const u8 pidff_effect_operation[] = { 0x22, 0x7c };
static const u8 pidff_block_free[] = { 0x22 };
#define PID_DEVICE_GAIN_FIELD 0
static const u8 pidff_device_gain[] = { 0x7e };
#define PID_RAM_POOL_SIZE 0
#define PID_SIMULTANEOUS_MAX 1
#define PID_DEVICE_MANAGED_POOL 2
static const u8 pidff_pool[] = { 0x80, 0x83, 0xa9 };
/* Special field key tables used to put special field keys into arrays */
#define PID_ENABLE_ACTUATORS 0
#define PID_RESET 1
static const u8 pidff_device_control[] = { 0x97, 0x9a };
#define PID_CONSTANT 0
#define PID_RAMP 1
#define PID_SQUARE 2
#define PID_SINE 3
#define PID_TRIANGLE 4
#define PID_SAW_UP 5
#define PID_SAW_DOWN 6
#define PID_SPRING 7
#define PID_DAMPER 8
#define PID_INERTIA 9
#define PID_FRICTION 10
static const u8 pidff_effect_types[] = {
0x26, 0x27, 0x30, 0x31, 0x32, 0x33, 0x34,
0x40, 0x41, 0x42, 0x43
};
#define PID_BLOCK_LOAD_SUCCESS 0
#define PID_BLOCK_LOAD_FULL 1
static const u8 pidff_block_load_status[] = { 0x8c, 0x8d };
#define PID_EFFECT_START 0
#define PID_EFFECT_STOP 1
static const u8 pidff_effect_operation_status[] = { 0x79, 0x7b };
struct pidff_usage {
struct hid_field *field;
s32 *value;
};
struct pidff_device {
struct hid_device *hid;
struct hid_report *reports[sizeof(pidff_reports)];
struct pidff_usage set_effect[sizeof(pidff_set_effect)];
struct pidff_usage set_envelope[sizeof(pidff_set_envelope)];
struct pidff_usage set_condition[sizeof(pidff_set_condition)];
struct pidff_usage set_periodic[sizeof(pidff_set_periodic)];
struct pidff_usage set_constant[sizeof(pidff_set_constant)];
struct pidff_usage set_ramp[sizeof(pidff_set_ramp)];
struct pidff_usage device_gain[sizeof(pidff_device_gain)];
struct pidff_usage block_load[sizeof(pidff_block_load)];
struct pidff_usage pool[sizeof(pidff_pool)];
struct pidff_usage effect_operation[sizeof(pidff_effect_operation)];
struct pidff_usage block_free[sizeof(pidff_block_free)];
/* Special field is a field that is not composed of
usage<->value pairs that pidff_usage values are */
/* Special field in create_new_effect */
struct hid_field *create_new_effect_type;
/* Special fields in set_effect */
struct hid_field *set_effect_type;
struct hid_field *effect_direction;
/* Special field in device_control */
struct hid_field *device_control;
/* Special field in block_load */
struct hid_field *block_load_status;
/* Special field in effect_operation */
struct hid_field *effect_operation_status;
int control_id[sizeof(pidff_device_control)];
int type_id[sizeof(pidff_effect_types)];
int status_id[sizeof(pidff_block_load_status)];
int operation_id[sizeof(pidff_effect_operation_status)];
int pid_id[PID_EFFECTS_MAX];
};
/*
* Scale an unsigned value with range 0..max for the given field
*/
static int pidff_rescale(int i, int max, struct hid_field *field)
{
return i * (field->logical_maximum - field->logical_minimum) / max +
field->logical_minimum;
}
/*
* Scale a signed value in range -0x8000..0x7fff for the given field
*/
static int pidff_rescale_signed(int i, struct hid_field *field)
{
return i == 0 ? 0 : i >
0 ? i * field->logical_maximum / 0x7fff : i *
field->logical_minimum / -0x8000;
}
static void pidff_set(struct pidff_usage *usage, u16 value)
{
usage->value[0] = pidff_rescale(value, 0xffff, usage->field);
debug("calculated from %d to %d", value, usage->value[0]);
}
static void pidff_set_signed(struct pidff_usage *usage, s16 value)
{
if (usage->field->logical_minimum < 0)
usage->value[0] = pidff_rescale_signed(value, usage->field);
else {
if (value < 0)
usage->value[0] =
pidff_rescale(-value, 0x8000, usage->field);
else
usage->value[0] =
pidff_rescale(value, 0x7fff, usage->field);
}
debug("calculated from %d to %d", value, usage->value[0]);
}
/*
* Send envelope report to the device
*/
static void pidff_set_envelope_report(struct pidff_device *pidff,
struct ff_envelope *envelope)
{
pidff->set_envelope[PID_EFFECT_BLOCK_INDEX].value[0] =
pidff->block_load[PID_EFFECT_BLOCK_INDEX].value[0];
pidff->set_envelope[PID_ATTACK_LEVEL].value[0] =
pidff_rescale(envelope->attack_level >
0x7fff ? 0x7fff : envelope->attack_level, 0x7fff,
pidff->set_envelope[PID_ATTACK_LEVEL].field);
pidff->set_envelope[PID_FADE_LEVEL].value[0] =
pidff_rescale(envelope->fade_level >
0x7fff ? 0x7fff : envelope->fade_level, 0x7fff,
pidff->set_envelope[PID_FADE_LEVEL].field);
pidff->set_envelope[PID_ATTACK_TIME].value[0] = envelope->attack_length;
pidff->set_envelope[PID_FADE_TIME].value[0] = envelope->fade_length;
debug("attack %u => %d", envelope->attack_level,
pidff->set_envelope[PID_ATTACK_LEVEL].value[0]);
hid_submit_report(pidff->hid, pidff->reports[PID_SET_ENVELOPE],
USB_DIR_OUT);
}
/*
* Test if the new envelope differs from old one
*/
static int pidff_needs_set_envelope(struct ff_envelope *envelope,
struct ff_envelope *old)
{
return envelope->attack_level != old->attack_level ||
envelope->fade_level != old->fade_level ||
envelope->attack_length != old->attack_length ||
envelope->fade_length != old->fade_length;
}
/*
* Send constant force report to the device
*/
static void pidff_set_constant_force_report(struct pidff_device *pidff,
struct ff_effect *effect)
{
pidff->set_constant[PID_EFFECT_BLOCK_INDEX].value[0] =
pidff->block_load[PID_EFFECT_BLOCK_INDEX].value[0];
pidff_set_signed(&pidff->set_constant[PID_MAGNITUDE],
effect->u.constant.level);
hid_submit_report(pidff->hid, pidff->reports[PID_SET_CONSTANT],
USB_DIR_OUT);
}
/*
* Test if the constant parameters have changed between effects
*/
static int pidff_needs_set_constant(struct ff_effect *effect,
struct ff_effect *old)
{
return effect->u.constant.level != old->u.constant.level;
}
/*
* Send set effect report to the device
*/
static void pidff_set_effect_report(struct pidff_device *pidff,
struct ff_effect *effect)
{
pidff->set_effect[PID_EFFECT_BLOCK_INDEX].value[0] =
pidff->block_load[PID_EFFECT_BLOCK_INDEX].value[0];
pidff->set_effect_type->value[0] =
pidff->create_new_effect_type->value[0];
pidff->set_effect[PID_DURATION].value[0] = effect->replay.length;
pidff->set_effect[PID_TRIGGER_BUTTON].value[0] = effect->trigger.button;
pidff->set_effect[PID_TRIGGER_REPEAT_INT].value[0] =
effect->trigger.interval;
pidff->set_effect[PID_GAIN].value[0] =
pidff->set_effect[PID_GAIN].field->logical_maximum;
pidff->set_effect[PID_DIRECTION_ENABLE].value[0] = 1;
pidff->effect_direction->value[0] =
pidff_rescale(effect->direction, 0xffff,
pidff->effect_direction);
pidff->set_effect[PID_START_DELAY].value[0] = effect->replay.delay;
hid_submit_report(pidff->hid, pidff->reports[PID_SET_EFFECT],
USB_DIR_OUT);
}
/*
* Test if the values used in set_effect have changed
*/
static int pidff_needs_set_effect(struct ff_effect *effect,
struct ff_effect *old)
{
return effect->replay.length != old->replay.length ||
effect->trigger.interval != old->trigger.interval ||
effect->trigger.button != old->trigger.button ||
effect->direction != old->direction ||
effect->replay.delay != old->replay.delay;
}
/*
* Send periodic effect report to the device
*/
static void pidff_set_periodic_report(struct pidff_device *pidff,
struct ff_effect *effect)
{
pidff->set_periodic[PID_EFFECT_BLOCK_INDEX].value[0] =
pidff->block_load[PID_EFFECT_BLOCK_INDEX].value[0];
pidff_set_signed(&pidff->set_periodic[PID_MAGNITUDE],
effect->u.periodic.magnitude);
pidff_set_signed(&pidff->set_periodic[PID_OFFSET],
effect->u.periodic.offset);
pidff_set(&pidff->set_periodic[PID_PHASE], effect->u.periodic.phase);
pidff->set_periodic[PID_PERIOD].value[0] = effect->u.periodic.period;
hid_submit_report(pidff->hid, pidff->reports[PID_SET_PERIODIC],
USB_DIR_OUT);
}
/*
* Test if periodic effect parameters have changed
*/
static int pidff_needs_set_periodic(struct ff_effect *effect,
struct ff_effect *old)
{
return effect->u.periodic.magnitude != old->u.periodic.magnitude ||
effect->u.periodic.offset != old->u.periodic.offset ||
effect->u.periodic.phase != old->u.periodic.phase ||
effect->u.periodic.period != old->u.periodic.period;
}
/*
* Send condition effect reports to the device
*/
static void pidff_set_condition_report(struct pidff_device *pidff,
struct ff_effect *effect)
{
int i;
pidff->set_condition[PID_EFFECT_BLOCK_INDEX].value[0] =
pidff->block_load[PID_EFFECT_BLOCK_INDEX].value[0];
for (i = 0; i < 2; i++) {
pidff->set_condition[PID_PARAM_BLOCK_OFFSET].value[0] = i;
pidff_set_signed(&pidff->set_condition[PID_CP_OFFSET],
effect->u.condition[i].center);
pidff_set_signed(&pidff->set_condition[PID_POS_COEFFICIENT],
effect->u.condition[i].right_coeff);
pidff_set_signed(&pidff->set_condition[PID_NEG_COEFFICIENT],
effect->u.condition[i].left_coeff);
pidff_set(&pidff->set_condition[PID_POS_SATURATION],
effect->u.condition[i].right_saturation);
pidff_set(&pidff->set_condition[PID_NEG_SATURATION],
effect->u.condition[i].left_saturation);
pidff_set(&pidff->set_condition[PID_DEAD_BAND],
effect->u.condition[i].deadband);
hid_wait_io(pidff->hid);
hid_submit_report(pidff->hid, pidff->reports[PID_SET_CONDITION],
USB_DIR_OUT);
}
}
/*
* Test if condition effect parameters have changed
*/
static int pidff_needs_set_condition(struct ff_effect *effect,
struct ff_effect *old)
{
int i;
int ret = 0;
for (i = 0; i < 2; i++) {
struct ff_condition_effect *cond = &effect->u.condition[i];
struct ff_condition_effect *old_cond = &old->u.condition[i];
ret |= cond->center != old_cond->center ||
cond->right_coeff != old_cond->right_coeff ||
cond->left_coeff != old_cond->left_coeff ||
cond->right_saturation != old_cond->right_saturation ||
cond->left_saturation != old_cond->left_saturation ||
cond->deadband != old_cond->deadband;
}
return ret;
}
/*
* Send ramp force report to the device
*/
static void pidff_set_ramp_force_report(struct pidff_device *pidff,
struct ff_effect *effect)
{
pidff->set_ramp[PID_EFFECT_BLOCK_INDEX].value[0] =
pidff->block_load[PID_EFFECT_BLOCK_INDEX].value[0];
pidff_set_signed(&pidff->set_ramp[PID_RAMP_START],
effect->u.ramp.start_level);
pidff_set_signed(&pidff->set_ramp[PID_RAMP_END],
effect->u.ramp.end_level);
hid_submit_report(pidff->hid, pidff->reports[PID_SET_RAMP],
USB_DIR_OUT);
}
/*
* Test if ramp force parameters have changed
*/
static int pidff_needs_set_ramp(struct ff_effect *effect, struct ff_effect *old)
{
return effect->u.ramp.start_level != old->u.ramp.start_level ||
effect->u.ramp.end_level != old->u.ramp.end_level;
}
/*
* Send a request for effect upload to the device
*
* Returns 0 if device reported success, -ENOSPC if the device reported memory
* is full. Upon unknown response the function will retry for 60 times, if
* still unsuccessful -EIO is returned.
*/
static int pidff_request_effect_upload(struct pidff_device *pidff, int efnum)
{
int j;
pidff->create_new_effect_type->value[0] = efnum;
hid_submit_report(pidff->hid, pidff->reports[PID_CREATE_NEW_EFFECT],
USB_DIR_OUT);
debug("create_new_effect sent, type: %d", efnum);
pidff->block_load[PID_EFFECT_BLOCK_INDEX].value[0] = 0;
pidff->block_load_status->value[0] = 0;
hid_wait_io(pidff->hid);
for (j = 0; j < 60; j++) {
debug("pid_block_load requested");
hid_submit_report(pidff->hid, pidff->reports[PID_BLOCK_LOAD],
USB_DIR_IN);
hid_wait_io(pidff->hid);
if (pidff->block_load_status->value[0] ==
pidff->status_id[PID_BLOCK_LOAD_SUCCESS]) {
debug("device reported free memory: %d bytes",
pidff->block_load[PID_RAM_POOL_AVAILABLE].value ?
pidff->block_load[PID_RAM_POOL_AVAILABLE].value[0] : -1);
return 0;
}
if (pidff->block_load_status->value[0] ==
pidff->status_id[PID_BLOCK_LOAD_FULL]) {
debug("not enough memory free: %d bytes",
pidff->block_load[PID_RAM_POOL_AVAILABLE].value ?
pidff->block_load[PID_RAM_POOL_AVAILABLE].value[0] : -1);
return -ENOSPC;
}
}
printk(KERN_ERR "hid-pidff: pid_block_load failed 60 times\n");
return -EIO;
}
/*
* Play the effect with PID id n times
*/
static void pidff_playback_pid(struct pidff_device *pidff, int pid_id, int n)
{
pidff->effect_operation[PID_EFFECT_BLOCK_INDEX].value[0] = pid_id;
if (n == 0) {
pidff->effect_operation_status->value[0] =
pidff->operation_id[PID_EFFECT_STOP];
} else {
pidff->effect_operation_status->value[0] =
pidff->operation_id[PID_EFFECT_START];
pidff->effect_operation[PID_LOOP_COUNT].value[0] = n;
}
hid_wait_io(pidff->hid);
hid_submit_report(pidff->hid, pidff->reports[PID_EFFECT_OPERATION],
USB_DIR_OUT);
}
/**
* Play the effect with effect id @effect_id for @value times
*/
static int pidff_playback(struct input_dev *dev, int effect_id, int value)
{
struct pidff_device *pidff = dev->ff->private;
pidff_playback_pid(pidff, pidff->pid_id[effect_id], value);
return 0;
}
/*
* Erase effect with PID id
*/
static void pidff_erase_pid(struct pidff_device *pidff, int pid_id)
{
pidff->block_free[PID_EFFECT_BLOCK_INDEX].value[0] = pid_id;
hid_submit_report(pidff->hid, pidff->reports[PID_BLOCK_FREE],
USB_DIR_OUT);
}
/*
* Stop and erase effect with effect_id
*/
static int pidff_erase_effect(struct input_dev *dev, int effect_id)
{
struct pidff_device *pidff = dev->ff->private;
int pid_id = pidff->pid_id[effect_id];
debug("starting to erase %d/%d", effect_id, pidff->pid_id[effect_id]);
pidff_playback_pid(pidff, pid_id, 0);
pidff_erase_pid(pidff, pid_id);
return 0;
}
/*
* Effect upload handler
*/
static int pidff_upload_effect(struct input_dev *dev, struct ff_effect *effect,
struct ff_effect *old)
{
struct pidff_device *pidff = dev->ff->private;
int type_id;
int error;
switch (effect->type) {
case FF_CONSTANT:
if (!old) {
error = pidff_request_effect_upload(pidff,
pidff->type_id[PID_CONSTANT]);
if (error)
return error;
}
if (!old || pidff_needs_set_effect(effect, old))
pidff_set_effect_report(pidff, effect);
if (!old || pidff_needs_set_constant(effect, old))
pidff_set_constant_force_report(pidff, effect);
if (!old ||
pidff_needs_set_envelope(&effect->u.constant.envelope,
&old->u.constant.envelope))
pidff_set_envelope_report(pidff,
&effect->u.constant.envelope);
break;
case FF_PERIODIC:
if (!old) {
switch (effect->u.periodic.waveform) {
case FF_SQUARE:
type_id = PID_SQUARE;
break;
case FF_TRIANGLE:
type_id = PID_TRIANGLE;
break;
case FF_SINE:
type_id = PID_SINE;
break;
case FF_SAW_UP:
type_id = PID_SAW_UP;
break;
case FF_SAW_DOWN:
type_id = PID_SAW_DOWN;
break;
default:
printk(KERN_ERR
"hid-pidff: invalid waveform\n");
return -EINVAL;
}
error = pidff_request_effect_upload(pidff,
pidff->type_id[type_id]);
if (error)
return error;
}
if (!old || pidff_needs_set_effect(effect, old))
pidff_set_effect_report(pidff, effect);
if (!old || pidff_needs_set_periodic(effect, old))
pidff_set_periodic_report(pidff, effect);
if (!old ||
pidff_needs_set_envelope(&effect->u.periodic.envelope,
&old->u.periodic.envelope))
pidff_set_envelope_report(pidff,
&effect->u.periodic.envelope);
break;
case FF_RAMP:
if (!old) {
error = pidff_request_effect_upload(pidff,
pidff->type_id[PID_RAMP]);
if (error)
return error;
}
if (!old || pidff_needs_set_effect(effect, old))
pidff_set_effect_report(pidff, effect);
if (!old || pidff_needs_set_ramp(effect, old))
pidff_set_ramp_force_report(pidff, effect);
if (!old ||
pidff_needs_set_envelope(&effect->u.ramp.envelope,
&old->u.ramp.envelope))
pidff_set_envelope_report(pidff,
&effect->u.ramp.envelope);
break;
case FF_SPRING:
if (!old) {
error = pidff_request_effect_upload(pidff,
pidff->type_id[PID_SPRING]);
if (error)
return error;
}
if (!old || pidff_needs_set_effect(effect, old))
pidff_set_effect_report(pidff, effect);
if (!old || pidff_needs_set_condition(effect, old))
pidff_set_condition_report(pidff, effect);
break;
case FF_FRICTION:
if (!old) {
error = pidff_request_effect_upload(pidff,
pidff->type_id[PID_FRICTION]);
if (error)
return error;
}
if (!old || pidff_needs_set_effect(effect, old))
pidff_set_effect_report(pidff, effect);
if (!old || pidff_needs_set_condition(effect, old))
pidff_set_condition_report(pidff, effect);
break;
case FF_DAMPER:
if (!old) {
error = pidff_request_effect_upload(pidff,
pidff->type_id[PID_DAMPER]);
if (error)
return error;
}
if (!old || pidff_needs_set_effect(effect, old))
pidff_set_effect_report(pidff, effect);
if (!old || pidff_needs_set_condition(effect, old))
pidff_set_condition_report(pidff, effect);
break;
case FF_INERTIA:
if (!old) {
error = pidff_request_effect_upload(pidff,
pidff->type_id[PID_INERTIA]);
if (error)
return error;
}
if (!old || pidff_needs_set_effect(effect, old))
pidff_set_effect_report(pidff, effect);
if (!old || pidff_needs_set_condition(effect, old))
pidff_set_condition_report(pidff, effect);
break;
default:
printk(KERN_ERR "hid-pidff: invalid type\n");
return -EINVAL;
}
if (!old)
pidff->pid_id[effect->id] =
pidff->block_load[PID_EFFECT_BLOCK_INDEX].value[0];
debug("uploaded");
return 0;
}
/*
* set_gain() handler
*/
static void pidff_set_gain(struct input_dev *dev, u16 gain)
{
struct pidff_device *pidff = dev->ff->private;
pidff_set(&pidff->device_gain[PID_DEVICE_GAIN_FIELD], gain);
hid_submit_report(pidff->hid, pidff->reports[PID_DEVICE_GAIN],
USB_DIR_OUT);
}
static void pidff_autocenter(struct pidff_device *pidff, u16 magnitude)
{
struct hid_field *field =
pidff->block_load[PID_EFFECT_BLOCK_INDEX].field;
if (!magnitude) {
pidff_playback_pid(pidff, field->logical_minimum, 0);
return;
}
pidff_playback_pid(pidff, field->logical_minimum, 1);
pidff->set_effect[PID_EFFECT_BLOCK_INDEX].value[0] =
pidff->block_load[PID_EFFECT_BLOCK_INDEX].field->logical_minimum;
pidff->set_effect_type->value[0] = pidff->type_id[PID_SPRING];
pidff->set_effect[PID_DURATION].value[0] = 0;
pidff->set_effect[PID_TRIGGER_BUTTON].value[0] = 0;
pidff->set_effect[PID_TRIGGER_REPEAT_INT].value[0] = 0;
pidff_set(&pidff->set_effect[PID_GAIN], magnitude);
pidff->set_effect[PID_START_DELAY].value[0] = 0;
hid_submit_report(pidff->hid, pidff->reports[PID_SET_EFFECT],
USB_DIR_OUT);
}
/*
* pidff_set_autocenter() handler
*/
static void pidff_set_autocenter(struct input_dev *dev, u16 magnitude)
{
struct pidff_device *pidff = dev->ff->private;
pidff_autocenter(pidff, magnitude);
}
/*
* Find fields from a report and fill a pidff_usage
*/
static int pidff_find_fields(struct pidff_usage *usage, const u8 *table,
struct hid_report *report, int count, int strict)
{
int i, j, k, found;
for (k = 0; k < count; k++) {
found = 0;
for (i = 0; i < report->maxfield; i++) {
if (report->field[i]->maxusage !=
report->field[i]->report_count) {
debug("maxusage and report_count do not match, "
"skipping");
continue;
}
for (j = 0; j < report->field[i]->maxusage; j++) {
if (report->field[i]->usage[j].hid ==
(HID_UP_PID | table[k])) {
debug("found %d at %d->%d", k, i, j);
usage[k].field = report->field[i];
usage[k].value =
&report->field[i]->value[j];
found = 1;
break;
}
}
if (found)
break;
}
if (!found && strict) {
debug("failed to locate %d", k);
return -1;
}
}
return 0;
}
/*
* Return index into pidff_reports for the given usage
*/
static int pidff_check_usage(int usage)
{
int i;
for (i = 0; i < sizeof(pidff_reports); i++)
if (usage == (HID_UP_PID | pidff_reports[i]))
return i;
return -1;
}
/*
* Find the reports and fill pidff->reports[]
* report_type specifies either OUTPUT or FEATURE reports
*/
static void pidff_find_reports(struct hid_device *hid, int report_type,
struct pidff_device *pidff)
{
struct hid_report *report;
int i, ret;
list_for_each_entry(report,
&hid->report_enum[report_type].report_list, list) {
if (report->maxfield < 1)
continue;
ret = pidff_check_usage(report->field[0]->logical);
if (ret != -1) {
debug("found usage 0x%02x from field->logical",
pidff_reports[ret]);
pidff->reports[ret] = report;
continue;
}
/*
* Sometimes logical collections are stacked to indicate
* different usages for the report and the field, in which
* case we want the usage of the parent. However, Linux HID
* implementation hides this fact, so we have to dig it up
* ourselves
*/
i = report->field[0]->usage[0].collection_index;
if (i <= 0 ||
hid->collection[i - 1].type != HID_COLLECTION_LOGICAL)
continue;
ret = pidff_check_usage(hid->collection[i - 1].usage);
if (ret != -1 && !pidff->reports[ret]) {
debug("found usage 0x%02x from collection array",
pidff_reports[ret]);
pidff->reports[ret] = report;
}
}
}
/*
* Test if the required reports have been found
*/
static int pidff_reports_ok(struct pidff_device *pidff)
{
int i;
for (i = 0; i <= PID_REQUIRED_REPORTS; i++) {
if (!pidff->reports[i]) {
debug("%d missing", i);
return 0;
}
}
return 1;
}
/*
* Find a field with a specific usage within a report
*/
static struct hid_field *pidff_find_special_field(struct hid_report *report,
int usage, int enforce_min)
{
int i;
for (i = 0; i < report->maxfield; i++) {
if (report->field[i]->logical == (HID_UP_PID | usage) &&
report->field[i]->report_count > 0) {
if (!enforce_min ||
report->field[i]->logical_minimum == 1)
return report->field[i];
else {
printk(KERN_ERR "hid-pidff: logical_minimum "
"is not 1 as it should be\n");
return NULL;
}
}
}
return NULL;
}
/*
* Fill a pidff->*_id struct table
*/
static int pidff_find_special_keys(int *keys, struct hid_field *fld,
const u8 *usagetable, int count)
{
int i, j;
int found = 0;
for (i = 0; i < count; i++) {
for (j = 0; j < fld->maxusage; j++) {
if (fld->usage[j].hid == (HID_UP_PID | usagetable[i])) {
keys[i] = j + 1;
found++;
break;
}
}
}
return found;
}
#define PIDFF_FIND_SPECIAL_KEYS(keys, field, name) \
pidff_find_special_keys(pidff->keys, pidff->field, pidff_ ## name, \
sizeof(pidff_ ## name))
/*
* Find and check the special fields
*/
static int pidff_find_special_fields(struct pidff_device *pidff)
{
debug("finding special fields");
pidff->create_new_effect_type =
pidff_find_special_field(pidff->reports[PID_CREATE_NEW_EFFECT],
0x25, 1);
pidff->set_effect_type =
pidff_find_special_field(pidff->reports[PID_SET_EFFECT],
0x25, 1);
pidff->effect_direction =
pidff_find_special_field(pidff->reports[PID_SET_EFFECT],
0x57, 0);
pidff->device_control =
pidff_find_special_field(pidff->reports[PID_DEVICE_CONTROL],
0x96, 1);
pidff->block_load_status =
pidff_find_special_field(pidff->reports[PID_BLOCK_LOAD],
0x8b, 1);
pidff->effect_operation_status =
pidff_find_special_field(pidff->reports[PID_EFFECT_OPERATION],
0x78, 1);
debug("search done");
if (!pidff->create_new_effect_type || !pidff->set_effect_type) {
printk(KERN_ERR "hid-pidff: effect lists not found\n");
return -1;
}
if (!pidff->effect_direction) {
printk(KERN_ERR "hid-pidff: direction field not found\n");
return -1;
}
if (!pidff->device_control) {
printk(KERN_ERR "hid-pidff: device control field not found\n");
return -1;
}
if (!pidff->block_load_status) {
printk(KERN_ERR
"hid-pidff: block load status field not found\n");
return -1;
}
if (!pidff->effect_operation_status) {
printk(KERN_ERR
"hid-pidff: effect operation field not found\n");
return -1;
}
pidff_find_special_keys(pidff->control_id, pidff->device_control,
pidff_device_control,
sizeof(pidff_device_control));
PIDFF_FIND_SPECIAL_KEYS(control_id, device_control, device_control);
if (!PIDFF_FIND_SPECIAL_KEYS(type_id, create_new_effect_type,
effect_types)) {
printk(KERN_ERR "hid-pidff: no effect types found\n");
return -1;
}
if (PIDFF_FIND_SPECIAL_KEYS(status_id, block_load_status,
block_load_status) !=
sizeof(pidff_block_load_status)) {
printk(KERN_ERR
"hidpidff: block load status identifiers not found\n");
return -1;
}
if (PIDFF_FIND_SPECIAL_KEYS(operation_id, effect_operation_status,
effect_operation_status) !=
sizeof(pidff_effect_operation_status)) {
printk(KERN_ERR
"hidpidff: effect operation identifiers not found\n");
return -1;
}
return 0;
}
/**
* Find the implemented effect types
*/
static int pidff_find_effects(struct pidff_device *pidff,
struct input_dev *dev)
{
int i;
for (i = 0; i < sizeof(pidff_effect_types); i++) {
int pidff_type = pidff->type_id[i];
if (pidff->set_effect_type->usage[pidff_type].hid !=
pidff->create_new_effect_type->usage[pidff_type].hid) {
printk(KERN_ERR "hid-pidff: "
"effect type number %d is invalid\n", i);
return -1;
}
}
if (pidff->type_id[PID_CONSTANT])
set_bit(FF_CONSTANT, dev->ffbit);
if (pidff->type_id[PID_RAMP])
set_bit(FF_RAMP, dev->ffbit);
if (pidff->type_id[PID_SQUARE]) {
set_bit(FF_SQUARE, dev->ffbit);
set_bit(FF_PERIODIC, dev->ffbit);
}
if (pidff->type_id[PID_SINE]) {
set_bit(FF_SINE, dev->ffbit);
set_bit(FF_PERIODIC, dev->ffbit);
}
if (pidff->type_id[PID_TRIANGLE]) {
set_bit(FF_TRIANGLE, dev->ffbit);
set_bit(FF_PERIODIC, dev->ffbit);
}
if (pidff->type_id[PID_SAW_UP]) {
set_bit(FF_SAW_UP, dev->ffbit);
set_bit(FF_PERIODIC, dev->ffbit);
}
if (pidff->type_id[PID_SAW_DOWN]) {
set_bit(FF_SAW_DOWN, dev->ffbit);
set_bit(FF_PERIODIC, dev->ffbit);
}
if (pidff->type_id[PID_SPRING])
set_bit(FF_SPRING, dev->ffbit);
if (pidff->type_id[PID_DAMPER])
set_bit(FF_DAMPER, dev->ffbit);
if (pidff->type_id[PID_INERTIA])
set_bit(FF_INERTIA, dev->ffbit);
if (pidff->type_id[PID_FRICTION])
set_bit(FF_FRICTION, dev->ffbit);
return 0;
}
#define PIDFF_FIND_FIELDS(name, report, strict) \
pidff_find_fields(pidff->name, pidff_ ## name, \
pidff->reports[report], \
sizeof(pidff_ ## name), strict)
/*
* Fill and check the pidff_usages
*/
static int pidff_init_fields(struct pidff_device *pidff, struct input_dev *dev)
{
int envelope_ok = 0;
if (PIDFF_FIND_FIELDS(set_effect, PID_SET_EFFECT, 1)) {
printk(KERN_ERR
"hid-pidff: unknown set_effect report layout\n");
return -ENODEV;
}
PIDFF_FIND_FIELDS(block_load, PID_BLOCK_LOAD, 0);
if (!pidff->block_load[PID_EFFECT_BLOCK_INDEX].value) {
printk(KERN_ERR
"hid-pidff: unknown pid_block_load report layout\n");
return -ENODEV;
}
if (PIDFF_FIND_FIELDS(effect_operation, PID_EFFECT_OPERATION, 1)) {
printk(KERN_ERR
"hid-pidff: unknown effect_operation report layout\n");
return -ENODEV;
}
if (PIDFF_FIND_FIELDS(block_free, PID_BLOCK_FREE, 1)) {
printk(KERN_ERR
"hid-pidff: unknown pid_block_free report layout\n");
return -ENODEV;
}
if (!PIDFF_FIND_FIELDS(set_envelope, PID_SET_ENVELOPE, 1))
envelope_ok = 1;
if (pidff_find_special_fields(pidff) || pidff_find_effects(pidff, dev))
return -ENODEV;
if (!envelope_ok) {
if (test_and_clear_bit(FF_CONSTANT, dev->ffbit))
printk(KERN_WARNING "hid-pidff: "
"has constant effect but no envelope\n");
if (test_and_clear_bit(FF_RAMP, dev->ffbit))
printk(KERN_WARNING "hid-pidff: "
"has ramp effect but no envelope\n");
if (test_and_clear_bit(FF_PERIODIC, dev->ffbit))
printk(KERN_WARNING "hid-pidff: "
"has periodic effect but no envelope\n");
}
if (test_bit(FF_CONSTANT, dev->ffbit) &&
PIDFF_FIND_FIELDS(set_constant, PID_SET_CONSTANT, 1)) {
printk(KERN_WARNING
"hid-pidff: unknown constant effect layout\n");
clear_bit(FF_CONSTANT, dev->ffbit);
}
if (test_bit(FF_RAMP, dev->ffbit) &&
PIDFF_FIND_FIELDS(set_ramp, PID_SET_RAMP, 1)) {
printk(KERN_WARNING "hid-pidff: unknown ramp effect layout\n");
clear_bit(FF_RAMP, dev->ffbit);
}
if ((test_bit(FF_SPRING, dev->ffbit) ||
test_bit(FF_DAMPER, dev->ffbit) ||
test_bit(FF_FRICTION, dev->ffbit) ||
test_bit(FF_INERTIA, dev->ffbit)) &&
PIDFF_FIND_FIELDS(set_condition, PID_SET_CONDITION, 1)) {
printk(KERN_WARNING
"hid-pidff: unknown condition effect layout\n");
clear_bit(FF_SPRING, dev->ffbit);
clear_bit(FF_DAMPER, dev->ffbit);
clear_bit(FF_FRICTION, dev->ffbit);
clear_bit(FF_INERTIA, dev->ffbit);
}
if (test_bit(FF_PERIODIC, dev->ffbit) &&
PIDFF_FIND_FIELDS(set_periodic, PID_SET_PERIODIC, 1)) {
printk(KERN_WARNING
"hid-pidff: unknown periodic effect layout\n");
clear_bit(FF_PERIODIC, dev->ffbit);
}
PIDFF_FIND_FIELDS(pool, PID_POOL, 0);
if (!PIDFF_FIND_FIELDS(device_gain, PID_DEVICE_GAIN, 1))
set_bit(FF_GAIN, dev->ffbit);
return 0;
}
/*
* Reset the device
*/
static void pidff_reset(struct pidff_device *pidff)
{
struct hid_device *hid = pidff->hid;
int i = 0;
pidff->device_control->value[0] = pidff->control_id[PID_RESET];
/* We reset twice as sometimes hid_wait_io isn't waiting long enough */
hid_submit_report(hid, pidff->reports[PID_DEVICE_CONTROL], USB_DIR_OUT);
hid_wait_io(hid);
hid_submit_report(hid, pidff->reports[PID_DEVICE_CONTROL], USB_DIR_OUT);
hid_wait_io(hid);
pidff->device_control->value[0] =
pidff->control_id[PID_ENABLE_ACTUATORS];
hid_submit_report(hid, pidff->reports[PID_DEVICE_CONTROL], USB_DIR_OUT);
hid_wait_io(hid);
/* pool report is sometimes messed up, refetch it */
hid_submit_report(hid, pidff->reports[PID_POOL], USB_DIR_IN);
hid_wait_io(hid);
if (pidff->pool[PID_SIMULTANEOUS_MAX].value) {
int sim_effects = pidff->pool[PID_SIMULTANEOUS_MAX].value[0];
while (sim_effects < 2) {
if (i++ > 20) {
printk(KERN_WARNING "hid-pidff: device reports "
"%d simultaneous effects\n",
sim_effects);
break;
}
debug("pid_pool requested again");
hid_submit_report(hid, pidff->reports[PID_POOL],
USB_DIR_IN);
hid_wait_io(hid);
}
}
}
/*
* Test if autocenter modification is using the supported method
*/
static int pidff_check_autocenter(struct pidff_device *pidff,
struct input_dev *dev)
{
int error;
/*
* Let's find out if autocenter modification is supported
* Specification doesn't specify anything, so we request an
* effect upload and cancel it immediately. If the approved
* effect id was one above the minimum, then we assume the first
* effect id is a built-in spring type effect used for autocenter
*/
error = pidff_request_effect_upload(pidff, 1);
if (error) {
printk(KERN_ERR "hid-pidff: upload request failed\n");
return error;
}
if (pidff->block_load[PID_EFFECT_BLOCK_INDEX].value[0] ==
pidff->block_load[PID_EFFECT_BLOCK_INDEX].field->logical_minimum + 1) {
pidff_autocenter(pidff, 0xffff);
set_bit(FF_AUTOCENTER, dev->ffbit);
} else {
printk(KERN_NOTICE "hid-pidff: "
"device has unknown autocenter control method\n");
}
pidff_erase_pid(pidff,
pidff->block_load[PID_EFFECT_BLOCK_INDEX].value[0]);
return 0;
}
/*
* Check if the device is PID and initialize it
*/
int hid_pidff_init(struct hid_device *hid)
{
struct pidff_device *pidff;
struct hid_input *hidinput = list_entry(hid->inputs.next,
struct hid_input, list);
struct input_dev *dev = hidinput->input;
struct ff_device *ff;
int max_effects;
int error;
debug("starting pid init");
if (list_empty(&hid->report_enum[HID_OUTPUT_REPORT].report_list)) {
debug("not a PID device, no output report");
return -ENODEV;
}
pidff = kzalloc(sizeof(*pidff), GFP_KERNEL);
if (!pidff)
return -ENOMEM;
pidff->hid = hid;
pidff_find_reports(hid, HID_OUTPUT_REPORT, pidff);
pidff_find_reports(hid, HID_FEATURE_REPORT, pidff);
if (!pidff_reports_ok(pidff)) {
debug("reports not ok, aborting");
error = -ENODEV;
goto fail;
}
error = pidff_init_fields(pidff, dev);
if (error)
goto fail;
pidff_reset(pidff);
if (test_bit(FF_GAIN, dev->ffbit)) {
pidff_set(&pidff->device_gain[PID_DEVICE_GAIN_FIELD], 0xffff);
hid_submit_report(pidff->hid, pidff->reports[PID_DEVICE_GAIN],
USB_DIR_OUT);
}
error = pidff_check_autocenter(pidff, dev);
if (error)
goto fail;
max_effects =
pidff->block_load[PID_EFFECT_BLOCK_INDEX].field->logical_maximum -
pidff->block_load[PID_EFFECT_BLOCK_INDEX].field->logical_minimum +
1;
debug("max effects is %d", max_effects);
if (max_effects > PID_EFFECTS_MAX)
max_effects = PID_EFFECTS_MAX;
if (pidff->pool[PID_SIMULTANEOUS_MAX].value)
debug("max simultaneous effects is %d",
pidff->pool[PID_SIMULTANEOUS_MAX].value[0]);
if (pidff->pool[PID_RAM_POOL_SIZE].value)
debug("device memory size is %d bytes",
pidff->pool[PID_RAM_POOL_SIZE].value[0]);
if (pidff->pool[PID_DEVICE_MANAGED_POOL].value &&
pidff->pool[PID_DEVICE_MANAGED_POOL].value[0] == 0) {
printk(KERN_NOTICE "hid-pidff: "
"device does not support device managed pool\n");
goto fail;
}
error = input_ff_create(dev, max_effects);
if (error)
goto fail;
ff = dev->ff;
ff->private = pidff;
ff->upload = pidff_upload_effect;
ff->erase = pidff_erase_effect;
ff->set_gain = pidff_set_gain;
ff->set_autocenter = pidff_set_autocenter;
ff->playback = pidff_playback;
printk(KERN_INFO "Force feedback for USB HID PID devices by "
"Anssi Hannula <anssi.hannula@gmail.com>\n");
return 0;
fail:
kfree(pidff);
return error;
}
drivers/usb/input/hid-tmff.c
View file @ a12f66fc
......@@ -28,97 +28,65 @@
*/
#include <linux/input.h>
#include <linux/sched.h>
#undef DEBUG
#include <linux/usb.h>
#include <linux/circ_buf.h>
#include "hid.h"
#include "fixp-arith.h"
/* Usages for thrustmaster devices I know about */
#define THRUSTMASTER_USAGE_RUMBLE_LR (HID_UP_GENDESK | 0xbb)
#define DELAY_CALC(t,delay) ((t) + (delay)*HZ/1000)
/* Effect status */
#define EFFECT_STARTED 0 /* Effect is going to play after some time */
#define EFFECT_PLAYING 1 /* Effect is playing */
#define EFFECT_USED 2
/* For tmff_device::flags */
#define DEVICE_CLOSING 0 /* The driver is being unitialised */
/* Check that the current process can access an effect */
#define CHECK_OWNERSHIP(effect) (current->pid == 0 \
|| effect.owner == current->pid)
#define TMFF_CHECK_ID(id) ((id) >= 0 && (id) < TMFF_EFFECTS)
#define TMFF_CHECK_OWNERSHIP(i, l) \
(test_bit(EFFECT_USED, l->effects[i].flags) \
&& CHECK_OWNERSHIP(l->effects[i]))
#define TMFF_EFFECTS 8
struct tmff_effect {
pid_t owner;
struct ff_effect effect;
unsigned long flags[1];
unsigned int count; /* Number of times left to play */
unsigned long play_at; /* When the effect starts to play */
unsigned long stop_at; /* When the effect ends */
};
struct tmff_device {
struct hid_device *hid;
struct hid_report *report;
struct hid_field *rumble;
};
unsigned int effects_playing;
struct tmff_effect effects[TMFF_EFFECTS];
spinlock_t lock; /* device-level lock. Having locks on
a per-effect basis could be nice, but
isn't really necessary */
/* Changes values from 0 to 0xffff into values from minimum to maximum */
static inline int hid_tmff_scale(unsigned int in, int minimum, int maximum)
{
int ret;
unsigned long flags[1]; /* Contains various information about the
state of the driver for this device */
ret = (in * (maximum - minimum) / 0xffff) + minimum;
if (ret < minimum)
return minimum;
if (ret > maximum)
return maximum;
return ret;
}
struct timer_list timer;
};
static int hid_tmff_play(struct input_dev *dev, void *data, struct ff_effect *effect)
{
struct hid_device *hid = dev->private;
struct tmff_device *tmff = data;
int left, right; /* Rumbling */
/* Callbacks */
static void hid_tmff_exit(struct hid_device *hid);
static int hid_tmff_event(struct hid_device *hid, struct input_dev *input,
unsigned int type, unsigned int code, int value);
static int hid_tmff_flush(struct input_dev *input, struct file *file);
static int hid_tmff_upload_effect(struct input_dev *input,
struct ff_effect *effect);
static int hid_tmff_erase(struct input_dev *input, int id);
left = hid_tmff_scale(effect->u.rumble.weak_magnitude,
tmff->rumble->logical_minimum, tmff->rumble->logical_maximum);
right = hid_tmff_scale(effect->u.rumble.strong_magnitude,
tmff->rumble->logical_minimum, tmff->rumble->logical_maximum);
/* Local functions */
static void hid_tmff_recalculate_timer(struct tmff_device *tmff);
static void hid_tmff_timer(unsigned long timer_data);
tmff->rumble->value[0] = left;
tmff->rumble->value[1] = right;
dbg("(left,right)=(%08x, %08x)", left, right);
hid_submit_report(hid, tmff->report, USB_DIR_OUT);
return 0;
}
int hid_tmff_init(struct hid_device *hid)
{
struct tmff_device *private;
struct tmff_device *tmff;
struct list_head *pos;
struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);
struct input_dev *input_dev = hidinput->input;
int error;
private = kzalloc(sizeof(struct tmff_device), GFP_KERNEL);
if (!private)
tmff = kzalloc(sizeof(struct tmff_device), GFP_KERNEL);
if (!tmff)
return -ENOMEM;
hid->ff_private = private;
/* Find the report to use */
__list_for_each(pos, &hid->report_enum[HID_OUTPUT_REPORT].report_list) {
struct hid_report *report = (struct hid_report *)pos;
......@@ -142,18 +110,18 @@ int hid_tmff_init(struct hid_device *hid)
continue;
}
if (private->report && private->report != report) {
if (tmff->report && tmff->report != report) {
warn("ignoring THRUSTMASTER_USAGE_RUMBLE_LR in other report");
continue;
}
if (private->rumble && private->rumble != field) {
if (tmff->rumble && tmff->rumble != field) {
warn("ignoring duplicate THRUSTMASTER_USAGE_RUMBLE_LR");
continue;
}
private->report = report;
private->rumble = field;
tmff->report = report;
tmff->rumble = field;
set_bit(FF_RUMBLE, input_dev->ffbit);
break;
......@@ -162,302 +130,17 @@ int hid_tmff_init(struct hid_device *hid)
warn("ignoring unknown output usage %08x", field->usage[0].hid);
continue;
}
/* Fallthrough to here only when a valid usage is found */
input_dev->upload_effect = hid_tmff_upload_effect;
input_dev->flush = hid_tmff_flush;
set_bit(EV_FF, input_dev->evbit);
input_dev->ff_effects_max = TMFF_EFFECTS;
}
}
private->hid = hid;
spin_lock_init(&private->lock);
init_timer(&private->timer);
private->timer.data = (unsigned long)private;
private->timer.function = hid_tmff_timer;
/* Event and exit callbacks */
hid->ff_exit = hid_tmff_exit;
hid->ff_event = hid_tmff_event;
info("Force feedback for ThrustMaster rumble pad devices by Zinx Verituse <zinx@epicsol.org>");
return 0;
}
static void hid_tmff_exit(struct hid_device *hid)
{
struct tmff_device *tmff = hid->ff_private;
unsigned long flags;
spin_lock_irqsave(&tmff->lock, flags);
set_bit(DEVICE_CLOSING, tmff->flags);
del_timer_sync(&tmff->timer);
spin_unlock_irqrestore(&tmff->lock, flags);
kfree(tmff);
}
static int hid_tmff_event(struct hid_device *hid, struct input_dev *input,
unsigned int type, unsigned int code, int value)
{
struct tmff_device *tmff = hid->ff_private;
struct tmff_effect *effect = &tmff->effects[code];
unsigned long flags;
if (type != EV_FF)
return -EINVAL;
if (!TMFF_CHECK_ID(code))
return -EINVAL;
if (!TMFF_CHECK_OWNERSHIP(code, tmff))
return -EACCES;
if (value < 0)
return -EINVAL;
spin_lock_irqsave(&tmff->lock, flags);
if (value > 0) {
set_bit(EFFECT_STARTED, effect->flags);
clear_bit(EFFECT_PLAYING, effect->flags);
effect->count = value;
effect->play_at = DELAY_CALC(jiffies, effect->effect.replay.delay);
} else {
clear_bit(EFFECT_STARTED, effect->flags);
clear_bit(EFFECT_PLAYING, effect->flags);
}
hid_tmff_recalculate_timer(tmff);
spin_unlock_irqrestore(&tmff->lock, flags);
return 0;
}
/* Erase all effects this process owns */
static int hid_tmff_flush(struct input_dev *dev, struct file *file)
{
struct hid_device *hid = dev->private;
struct tmff_device *tmff = hid->ff_private;
int i;
for (i=0; i<dev->ff_effects_max; ++i)
/* NOTE: no need to lock here. The only times EFFECT_USED is
modified is when effects are uploaded or when an effect is
erased. But a process cannot close its dev/input/eventX fd
and perform ioctls on the same fd all at the same time */
if (current->pid == tmff->effects[i].owner
&& test_bit(EFFECT_USED, tmff->effects[i].flags))
if (hid_tmff_erase(dev, i))
warn("erase effect %d failed", i);
return 0;
}
static int hid_tmff_erase(struct input_dev *dev, int id)
{
struct hid_device *hid = dev->private;
struct tmff_device *tmff = hid->ff_private;
unsigned long flags;
if (!TMFF_CHECK_ID(id))
return -EINVAL;
if (!TMFF_CHECK_OWNERSHIP(id, tmff))
return -EACCES;
spin_lock_irqsave(&tmff->lock, flags);
tmff->effects[id].flags[0] = 0;
hid_tmff_recalculate_timer(tmff);
spin_unlock_irqrestore(&tmff->lock, flags);
return 0;
}
static int hid_tmff_upload_effect(struct input_dev *input,
struct ff_effect *effect)
{
struct hid_device *hid = input->private;
struct tmff_device *tmff = hid->ff_private;
int id;
unsigned long flags;
if (!test_bit(effect->type, input->ffbit))
return -EINVAL;
if (effect->id != -1 && !TMFF_CHECK_ID(effect->id))
return -EINVAL;
spin_lock_irqsave(&tmff->lock, flags);
if (effect->id == -1) {
/* Find a free effect */
for (id = 0; id < TMFF_EFFECTS && test_bit(EFFECT_USED, tmff->effects[id].flags); ++id);
if (id >= TMFF_EFFECTS) {
spin_unlock_irqrestore(&tmff->lock, flags);
return -ENOSPC;
}
effect->id = id;
tmff->effects[id].owner = current->pid;
tmff->effects[id].flags[0] = 0;
set_bit(EFFECT_USED, tmff->effects[id].flags);
} else {
/* Re-uploading an owned effect, to change parameters */
id = effect->id;
clear_bit(EFFECT_PLAYING, tmff->effects[id].flags);
error = input_ff_create_memless(input_dev, tmff, hid_tmff_play);
if (error) {
kfree(tmff);
return error;
}
tmff->effects[id].effect = *effect;
hid_tmff_recalculate_timer(tmff);
info("Force feedback for ThrustMaster rumble pad devices by Zinx Verituse <zinx@epicsol.org>");
spin_unlock_irqrestore(&tmff->lock, flags);
return 0;
}
/* Start the timer for the next start/stop/delay */
/* Always call this while tmff->lock is locked */
static void hid_tmff_recalculate_timer(struct tmff_device *tmff)
{
int i;
int events = 0;
unsigned long next_time;
next_time = 0; /* Shut up compiler's incorrect warning */
/* Find the next change in an effect's status */
for (i = 0; i < TMFF_EFFECTS; ++i) {
struct tmff_effect *effect = &tmff->effects[i];
unsigned long play_time;
if (!test_bit(EFFECT_STARTED, effect->flags))
continue;
effect->stop_at = DELAY_CALC(effect->play_at, effect->effect.replay.length);
if (!test_bit(EFFECT_PLAYING, effect->flags))
play_time = effect->play_at;
else
play_time = effect->stop_at;
events++;
if (time_after(jiffies, play_time))
play_time = jiffies;
if (events == 1)
next_time = play_time;
else {
if (time_after(next_time, play_time))
next_time = play_time;
}
}
if (!events && tmff->effects_playing) {
/* Treat all effects turning off as an event */
events = 1;
next_time = jiffies;
}
if (!events) {
/* No events, no time, no need for a timer. */
del_timer_sync(&tmff->timer);
return;
}
mod_timer(&tmff->timer, next_time);
}
/* Changes values from 0 to 0xffff into values from minimum to maximum */
static inline int hid_tmff_scale(unsigned int in, int minimum, int maximum)
{
int ret;
ret = (in * (maximum - minimum) / 0xffff) + minimum;
if (ret < minimum)
return minimum;
if (ret > maximum)
return maximum;
return ret;
}
static void hid_tmff_timer(unsigned long timer_data)
{
struct tmff_device *tmff = (struct tmff_device *) timer_data;
struct hid_device *hid = tmff->hid;
unsigned long flags;
int left = 0, right = 0; /* Rumbling */
int i;
spin_lock_irqsave(&tmff->lock, flags);
tmff->effects_playing = 0;
for (i = 0; i < TMFF_EFFECTS; ++i) {
struct tmff_effect *effect = &tmff->effects[i];
if (!test_bit(EFFECT_STARTED, effect->flags))
continue;
if (!time_after(jiffies, effect->play_at))
continue;
if (time_after(jiffies, effect->stop_at)) {
dbg("Finished playing once %d", i);
clear_bit(EFFECT_PLAYING, effect->flags);
if (--effect->count <= 0) {
dbg("Stopped %d", i);
clear_bit(EFFECT_STARTED, effect->flags);
continue;
} else {
dbg("Start again %d", i);
effect->play_at = DELAY_CALC(jiffies, effect->effect.replay.delay);
continue;
}
}
++tmff->effects_playing;
set_bit(EFFECT_PLAYING, effect->flags);
switch (effect->effect.type) {
case FF_RUMBLE:
right += effect->effect.u.rumble.strong_magnitude;
left += effect->effect.u.rumble.weak_magnitude;
break;
default:
BUG();
break;
}
}
left = hid_tmff_scale(left, tmff->rumble->logical_minimum, tmff->rumble->logical_maximum);
right = hid_tmff_scale(right, tmff->rumble->logical_minimum, tmff->rumble->logical_maximum);
if (left != tmff->rumble->value[0] || right != tmff->rumble->value[1]) {
tmff->rumble->value[0] = left;
tmff->rumble->value[1] = right;
dbg("(left,right)=(%08x, %08x)", left, right);
hid_submit_report(hid, tmff->report, USB_DIR_OUT);
}
if (!test_bit(DEVICE_CLOSING, tmff->flags))
hid_tmff_recalculate_timer(tmff);
spin_unlock_irqrestore(&tmff->lock, flags);
}
drivers/usb/input/hid-zpff.c 0 → 100644
View file @ a12f66fc
/*
* Force feedback support for Zeroplus based devices
*
* Copyright (c) 2005, 2006 Anssi Hannula <anssi.hannula@gmail.com>
*/
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* #define DEBUG */
#define debug(format, arg...) pr_debug("hid-zpff: " format "\n" , ## arg)
#include <linux/input.h>
#include <linux/usb.h>
#include "hid.h"
struct zpff_device {
struct hid_report *report;
};
static int hid_zpff_play(struct input_dev *dev, void *data,
struct ff_effect *effect)
{
struct hid_device *hid = dev->private;
struct zpff_device *zpff = data;
int left, right;
/*
* The following is specified the other way around in the Zeroplus
* datasheet but the order below is correct for the XFX Executioner;
* however it is possible that the XFX Executioner is an exception
*/
left = effect->u.rumble.strong_magnitude;
right = effect->u.rumble.weak_magnitude;
debug("called with 0x%04x 0x%04x", left, right);
left = left * 0x7f / 0xffff;
right = right * 0x7f / 0xffff;
zpff->report->field[2]->value[0] = left;
zpff->report->field[3]->value[0] = right;
debug("running with 0x%02x 0x%02x", left, right);
hid_submit_report(hid, zpff->report, USB_DIR_OUT);
return 0;
}
int hid_zpff_init(struct hid_device *hid)
{
struct zpff_device *zpff;
struct hid_report *report;
struct hid_input *hidinput = list_entry(hid->inputs.next,
struct hid_input, list);
struct list_head *report_list =
&hid->report_enum[HID_OUTPUT_REPORT].report_list;
struct input_dev *dev = hidinput->input;
int error;
if (list_empty(report_list)) {
printk(KERN_ERR "hid-zpff: no output report found\n");
return -ENODEV;
}
report = list_entry(report_list->next, struct hid_report, list);
if (report->maxfield < 4) {
printk(KERN_ERR "hid-zpff: not enough fields in report\n");
return -ENODEV;
}
zpff = kzalloc(sizeof(struct zpff_device), GFP_KERNEL);
if (!zpff)
return -ENOMEM;
set_bit(FF_RUMBLE, dev->ffbit);
error = input_ff_create_memless(dev, zpff, hid_zpff_play);
if (error) {
kfree(zpff);
return error;
}
zpff->report = report;
zpff->report->field[0]->value[0] = 0x00;
zpff->report->field[1]->value[0] = 0x02;
zpff->report->field[2]->value[0] = 0x00;
zpff->report->field[3]->value[0] = 0x00;
hid_submit_report(hid, zpff->report, USB_DIR_OUT);
printk(KERN_INFO "Force feedback for Zeroplus based devices by "
"Anssi Hannula <anssi.hannula@gmail.com>\n");
return 0;
}
drivers/usb/input/hid.h
View file @ a12f66fc
......@@ -449,11 +449,6 @@ struct hid_device { /* device report descriptor */
char phys[64]; /* Device physical location */
char uniq[64]; /* Device unique identifier (serial #) */
void *ff_private; /* Private data for the force-feedback driver */
void (*ff_exit)(struct hid_device*); /* Called by hid_exit_ff(hid) */
int (*ff_event)(struct hid_device *hid, struct input_dev *input,
unsigned int type, unsigned int code, int value);
#ifdef CONFIG_USB_HIDINPUT_POWERBOOK
unsigned long pb_pressed_fn[NBITS(KEY_MAX)];
unsigned long pb_pressed_numlock[NBITS(KEY_MAX)];
......@@ -521,29 +516,22 @@ void hid_close(struct hid_device *);
int hid_set_field(struct hid_field *, unsigned, __s32);
void hid_submit_report(struct hid_device *, struct hid_report *, unsigned char dir);
void hid_init_reports(struct hid_device *hid);
struct hid_field *hid_find_field_by_usage(struct hid_device *hid, __u32 wanted_usage, int type);
int hid_wait_io(struct hid_device* hid);
#ifdef CONFIG_HID_FF
int hid_ff_init(struct hid_device *hid);
int hid_lgff_init(struct hid_device *hid);
int hid_tmff_init(struct hid_device *hid);
int hid_zpff_init(struct hid_device *hid);
#ifdef CONFIG_HID_PID
int hid_pidff_init(struct hid_device *hid);
#else
static inline int hid_pidff_init(struct hid_device *hid) { return -ENODEV; }
#endif
#else
static inline int hid_ff_init(struct hid_device *hid) { return -1; }
#endif
static inline void hid_ff_exit(struct hid_device *hid)
{
if (hid->ff_exit)
hid->ff_exit(hid);
}
static inline int hid_ff_event(struct hid_device *hid, struct input_dev *input,
unsigned int type, unsigned int code, int value)
{
if (hid->ff_event)
return hid->ff_event(hid, input, type, code, value);
return -ENOSYS;
}
int hid_lgff_init(struct hid_device* hid);
int hid_tmff_init(struct hid_device* hid);
int hid_pid_init(struct hid_device* hid);
drivers/usb/input/pid.c deleted 100644 → 0
View file @ 12dce626
/*
* PID Force feedback support for hid devices.
*
* Copyright (c) 2002 Rodrigo Damazio.
* Portions by Johann Deneux and Bjorn Augustson
*/
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Should you need to contact me, the author, you can do so by
* e-mail - mail your message to <rdamazio@lsi.usp.br>
*/
#include <linux/config.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/mm.h>
#include <linux/smp_lock.h>
#include <linux/spinlock.h>
#include <linux/input.h>
#include <linux/usb.h>
#include "hid.h"
#include "pid.h"
#define CHECK_OWNERSHIP(i, hid_pid) \
((i) < FF_EFFECTS_MAX && i >= 0 && \
test_bit(FF_PID_FLAGS_USED, &hid_pid->effects[(i)].flags) && \
(current->pid == 0 || \
(hid_pid)->effects[(i)].owner == current->pid))
/* Called when a transfer is completed */
static void hid_pid_ctrl_out(struct urb *u, struct pt_regs *regs)
{
dev_dbg(&u->dev->dev, "hid_pid_ctrl_out - Transfer Completed\n");
}
static void hid_pid_exit(struct hid_device *hid)
{
struct hid_ff_pid *private = hid->ff_private;
if (private->urbffout) {
usb_kill_urb(private->urbffout);
usb_free_urb(private->urbffout);
}
}
static int pid_upload_periodic(struct hid_ff_pid *pid, struct ff_effect *effect, int is_update)
{
dev_info(&pid->hid->dev->dev, "requested periodic force upload\n");
return 0;
}
static int pid_upload_constant(struct hid_ff_pid *pid, struct ff_effect *effect, int is_update)
{
dev_info(&pid->hid->dev->dev, "requested constant force upload\n");
return 0;
}
static int pid_upload_condition(struct hid_ff_pid *pid, struct ff_effect *effect, int is_update)
{
dev_info(&pid->hid->dev->dev, "requested Condition force upload\n");
return 0;
}
static int pid_upload_ramp(struct hid_ff_pid *pid, struct ff_effect *effect, int is_update)
{
dev_info(&pid->hid->dev->dev, "request ramp force upload\n");
return 0;
}
static int hid_pid_event(struct hid_device *hid, struct input_dev *input,
unsigned int type, unsigned int code, int value)
{
dev_dbg(&hid->dev->dev, "PID event received: type=%d,code=%d,value=%d.\n", type, code, value);
if (type != EV_FF)
return -1;
return 0;
}
/* Lock must be held by caller */
static void hid_pid_ctrl_playback(struct hid_device *hid, struct hid_pid_effect *effect, int play)
{
if (play)
set_bit(FF_PID_FLAGS_PLAYING, &effect->flags);
else
clear_bit(FF_PID_FLAGS_PLAYING, &effect->flags);
}
static int hid_pid_erase(struct input_dev *dev, int id)
{
struct hid_device *hid = dev->private;
struct hid_ff_pid *pid = hid->ff_private;
struct hid_field *field;
unsigned long flags;
int ret;
if (!CHECK_OWNERSHIP(id, pid))
return -EACCES;
/* Find report */
field = hid_find_field_by_usage(hid, HID_UP_PID | FF_PID_USAGE_BLOCK_FREE,
HID_OUTPUT_REPORT);
if (!field) {
dev_err(&hid->dev->dev, "couldn't find report\n");
return -EIO;
}
ret = hid_set_field(field, 0, pid->effects[id].device_id);
if (ret) {
dev_err(&hid->dev->dev, "couldn't set field\n");
return ret;
}
hid_submit_report(hid, field->report, USB_DIR_OUT);
spin_lock_irqsave(&pid->lock, flags);
hid_pid_ctrl_playback(hid, pid->effects + id, 0);
pid->effects[id].flags = 0;
spin_unlock_irqrestore(&pid->lock, flags);
return 0;
}
/* Erase all effects this process owns */
static int hid_pid_flush(struct input_dev *dev, struct file *file)
{
struct hid_device *hid = dev->private;
struct hid_ff_pid *pid = hid->ff_private;
int i;
/*NOTE: no need to lock here. The only times EFFECT_USED is
modified is when effects are uploaded or when an effect is
erased. But a process cannot close its dev/input/eventX fd
and perform ioctls on the same fd all at the same time */
/*FIXME: multiple threads, anyone? */
for (i = 0; i < dev->ff_effects_max; ++i)
if (current->pid == pid->effects[i].owner
&& test_bit(FF_PID_FLAGS_USED, &pid->effects[i].flags))
if (hid_pid_erase(dev, i))
dev_warn(&hid->dev->dev, "erase effect %d failed", i);
return 0;
}
static int hid_pid_upload_effect(struct input_dev *dev,
struct ff_effect *effect)
{
struct hid_ff_pid *pid_private = (struct hid_ff_pid *)(dev->private);
int ret;
int is_update;
unsigned long flags;
dev_dbg(&pid_private->hid->dev->dev, "upload effect called: effect_type=%x\n", effect->type);
/* Check this effect type is supported by this device */
if (!test_bit(effect->type, dev->ffbit)) {
dev_dbg(&pid_private->hid->dev->dev,
"invalid kind of effect requested.\n");
return -EINVAL;
}
/*
* If we want to create a new effect, get a free id
*/
if (effect->id == -1) {
int id = 0;
// Spinlock so we don`t get a race condition when choosing IDs
spin_lock_irqsave(&pid_private->lock, flags);
while (id < FF_EFFECTS_MAX)
if (!test_and_set_bit(FF_PID_FLAGS_USED, &pid_private->effects[id++].flags))
break;
if (id == FF_EFFECTS_MAX) {
spin_unlock_irqrestore(&pid_private->lock, flags);
// TEMP - We need to get ff_effects_max correctly first: || id >= dev->ff_effects_max) {
dev_dbg(&pid_private->hid->dev->dev, "Not enough device memory\n");
return -ENOMEM;
}
effect->id = id;
dev_dbg(&pid_private->hid->dev->dev, "effect ID is %d.\n", id);
pid_private->effects[id].owner = current->pid;
pid_private->effects[id].flags = (1 << FF_PID_FLAGS_USED);
spin_unlock_irqrestore(&pid_private->lock, flags);
is_update = FF_PID_FALSE;
} else {
/* We want to update an effect */
if (!CHECK_OWNERSHIP(effect->id, pid_private))
return -EACCES;
/* Parameter type cannot be updated */
if (effect->type != pid_private->effects[effect->id].effect.type)
return -EINVAL;
/* Check the effect is not already being updated */
if (test_bit(FF_PID_FLAGS_UPDATING, &pid_private->effects[effect->id].flags))
return -EAGAIN;
is_update = FF_PID_TRUE;
}
/*
* Upload the effect
*/
switch (effect->type) {
case FF_PERIODIC:
ret = pid_upload_periodic(pid_private, effect, is_update);
break;
case FF_CONSTANT:
ret = pid_upload_constant(pid_private, effect, is_update);
break;
case FF_SPRING:
case FF_FRICTION:
case FF_DAMPER:
case FF_INERTIA:
ret = pid_upload_condition(pid_private, effect, is_update);
break;
case FF_RAMP:
ret = pid_upload_ramp(pid_private, effect, is_update);
break;
default:
dev_dbg(&pid_private->hid->dev->dev,
"invalid type of effect requested - %x.\n",
effect->type);
return -EINVAL;
}
/* If a packet was sent, forbid new updates until we are notified
* that the packet was updated
*/
if (ret == 0)
set_bit(FF_PID_FLAGS_UPDATING, &pid_private->effects[effect->id].flags);
pid_private->effects[effect->id].effect = *effect;
return ret;
}
int hid_pid_init(struct hid_device *hid)
{
struct hid_ff_pid *private;
struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);
struct input_dev *input_dev = hidinput->input;
private = hid->ff_private = kzalloc(sizeof(struct hid_ff_pid), GFP_KERNEL);
if (!private)
return -ENOMEM;
private->hid = hid;
hid->ff_exit = hid_pid_exit;
hid->ff_event = hid_pid_event;
/* Open output URB */
if (!(private->urbffout = usb_alloc_urb(0, GFP_KERNEL))) {
kfree(private);
return -1;
}
usb_fill_control_urb(private->urbffout, hid->dev, 0,
(void *)&private->ffcr, private->ctrl_buffer, 8,
hid_pid_ctrl_out, hid);
input_dev->upload_effect = hid_pid_upload_effect;
input_dev->flush = hid_pid_flush;
input_dev->ff_effects_max = 8; // A random default
set_bit(EV_FF, input_dev->evbit);
set_bit(EV_FF_STATUS, input_dev->evbit);
spin_lock_init(&private->lock);
printk(KERN_INFO "Force feedback driver for PID devices by Rodrigo Damazio <rdamazio@lsi.usp.br>.\n");
return 0;
}
drivers/usb/input/pid.h deleted 100644 → 0
View file @ 12dce626
/*
* PID Force feedback support for hid devices.
*
* Copyright (c) 2002 Rodrigo Damazio.
*/
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Should you need to contact me, the author, you can do so by
* e-mail - mail your message to <rdamazio@lsi.usp.br>
*/
#define FF_EFFECTS_MAX 64
#define FF_PID_FLAGS_USED 1 /* If the effect exists */
#define FF_PID_FLAGS_UPDATING 2 /* If the effect is being updated */
#define FF_PID_FLAGS_PLAYING 3 /* If the effect is currently being played */
#define FF_PID_FALSE 0
#define FF_PID_TRUE 1
struct hid_pid_effect {
unsigned long flags;
pid_t owner;
unsigned int device_id; /* The device-assigned ID */
struct ff_effect effect;
};
struct hid_ff_pid {
struct hid_device *hid;
unsigned long gain;
struct urb *urbffout;
struct usb_ctrlrequest ffcr;
spinlock_t lock;
unsigned char ctrl_buffer[8];
struct hid_pid_effect effects[FF_EFFECTS_MAX];
};
/*
* Constants from the PID usage table (still far from complete)
*/
#define FF_PID_USAGE_BLOCK_LOAD 0x89UL
#define FF_PID_USAGE_BLOCK_FREE 0x90UL
#define FF_PID_USAGE_NEW_EFFECT 0xABUL
#define FF_PID_USAGE_POOL_REPORT 0x7FUL
include/linux/input.h
View file @ a12f66fc
......@@ -349,6 +349,9 @@ struct input_absinfo {
#define KEY_BATTERY 236
#define KEY_BLUETOOTH 237
#define KEY_WLAN 238
#define KEY_UNKNOWN 240
#define BTN_MISC 0x100
......@@ -645,6 +648,7 @@ struct input_absinfo {
#define BUS_USB 0x03
#define BUS_HIL 0x04
#define BUS_BLUETOOTH 0x05
#define BUS_VIRTUAL 0x06
#define BUS_ISA 0x10
#define BUS_I8042 0x11
......@@ -667,98 +671,167 @@ struct input_absinfo {
/*
* Structures used in ioctls to upload effects to a device
* The first structures are not passed directly by using ioctls.
* They are sub-structures of the actually sent structure (called ff_effect)
* They are pieces of a bigger structure (called ff_effect)
*/
/*
* All duration values are expressed in ms. Values above 32767 ms (0x7fff)
* should not be used and have unspecified results.
*/
/**
* struct ff_replay - defines scheduling of the effect
* @length: duration of the effect
* @delay: delay before effect should start playing
*/
struct ff_replay {
__u16 length; /* Duration of an effect in ms. All other times are also expressed in ms */
__u16 delay; /* Time to wait before to start playing an effect */
__u16 length;
__u16 delay;
};
/**
* struct ff_trigger - defines what triggers the effect
* @button: number of the button triggering the effect
* @interval: controls how soon the effect can be re-triggered
*/
struct ff_trigger {
__u16 button; /* Number of button triggering an effect */
__u16 interval; /* Time to wait before an effect can be re-triggered (ms) */
__u16 button;
__u16 interval;
};
/**
* struct ff_envelope - generic effect envelope
* @attack_length: duration of the attack (ms)
* @attack_level: level at the beginning of the attack
* @fade_length: duration of fade (ms)
* @fade_level: level at the end of fade
*
* The @attack_level and @fade_level are absolute values; when applying
* envelope force-feedback core will convert to positive/negative
* value based on polarity of the default level of the effect.
* Valid range for the attack and fade levels is 0x0000 - 0x7fff
*/
struct ff_envelope {
__u16 attack_length; /* Duration of attack (ms) */
__u16 attack_level; /* Level at beginning of attack */
__u16 fade_length; /* Duration of fade (ms) */
__u16 fade_level; /* Level at end of fade */
__u16 attack_length;
__u16 attack_level;
__u16 fade_length;
__u16 fade_level;
};
/* FF_CONSTANT */
/**
* struct ff_constant_effect - defines parameters of a constant effect
* @level: strength of the effect; may be negative
* @envelope: envelope data
*/
struct ff_constant_effect {
__s16 level; /* Strength of effect. Negative values are OK */
__s16 level;
struct ff_envelope envelope;
};
/* FF_RAMP */
/**
* struct ff_ramp_effect - defines parameters of a ramp effect
* @start_level: beginning strength of the effect; may be negative
* @end_level: final strength of the effect; may be negative
* @envelope: envelope data
*/
struct ff_ramp_effect {
__s16 start_level;
__s16 end_level;
struct ff_envelope envelope;
};
/* FF_SPRING of FF_FRICTION */
/**
* struct ff_condition_effect - defines a spring or friction effect
* @right_saturation: maximum level when joystick moved all way to the right
* @left_saturation: same for the left side
* @right_coeff: controls how fast the force grows when the joystick moves
* to the right
* @left_coeff: same for the left side
* @deadband: size of the dead zone, where no force is produced
* @center: position of the dead zone
*/
struct ff_condition_effect {
__u16 right_saturation; /* Max level when joystick is on the right */
__u16 left_saturation; /* Max level when joystick in on the left */
__s16 right_coeff; /* Indicates how fast the force grows when the
joystick moves to the right */
__s16 left_coeff; /* Same for left side */
__u16 right_saturation;
__u16 left_saturation;
__u16 deadband; /* Size of area where no force is produced */
__s16 center; /* Position of dead zone */
__s16 right_coeff;
__s16 left_coeff;
__u16 deadband;
__s16 center;
};
/* FF_PERIODIC */
/**
* struct ff_periodic_effect - defines parameters of a periodic effect
* @waveform: kind of the effect (wave)
* @period: period of the wave (ms)
* @magnitude: peak value
* @offset: mean value of the wave (roughly)
* @phase: 'horizontal' shift
* @envelope: envelope data
* @custom_len: number of samples (FF_CUSTOM only)
* @custom_data: buffer of samples (FF_CUSTOM only)
*
* Known waveforms - FF_SQUARE, FF_TRIANGLE, FF_SINE, FF_SAW_UP,
* FF_SAW_DOWN, FF_CUSTOM. The exact syntax FF_CUSTOM is undefined
* for the time being as no driver supports it yet.
*
* Note: the data pointed by custom_data is copied by the driver.
* You can therefore dispose of the memory after the upload/update.
*/
struct ff_periodic_effect {
__u16 waveform; /* Kind of wave (sine, square...) */
__u16 period; /* in ms */
__s16 magnitude; /* Peak value */
__s16 offset; /* Mean value of wave (roughly) */
__u16 phase; /* 'Horizontal' shift */
__u16 waveform;
__u16 period;
__s16 magnitude;
__s16 offset;
__u16 phase;
struct ff_envelope envelope;
/* Only used if waveform == FF_CUSTOM */
__u32 custom_len; /* Number of samples */
__s16 *custom_data; /* Buffer of samples */
/* Note: the data pointed by custom_data is copied by the driver. You can
* therefore dispose of the memory after the upload/update */
__u32 custom_len;
__s16 *custom_data;
};
/* FF_RUMBLE */
/* Some rumble pads have two motors of different weight.
strong_magnitude represents the magnitude of the vibration generated
by the heavy motor.
*/
/**
* struct ff_rumble_effect - defines parameters of a periodic effect
* @strong_magnitude: magnitude of the heavy motor
* @weak_magnitude: magnitude of the light one
*
* Some rumble pads have two motors of different weight. Strong_magnitude
* represents the magnitude of the vibration generated by the heavy one.
*/
struct ff_rumble_effect {
__u16 strong_magnitude; /* Magnitude of the heavy motor */
__u16 weak_magnitude; /* Magnitude of the light one */
__u16 strong_magnitude;
__u16 weak_magnitude;
};
/*
* Structure sent through ioctl from the application to the driver
/**
* struct ff_effect - defines force feedback effect
* @type: type of the effect (FF_CONSTANT, FF_PERIODIC, FF_RAMP, FF_SPRING,
* FF_FRICTION, FF_DAMPER, FF_RUMBLE, FF_INERTIA, or FF_CUSTOM)
* @id: an unique id assigned to an effect
* @direction: direction of the effect
* @trigger: trigger conditions (struct ff_trigger)
* @replay: scheduling of the effect (struct ff_replay)
* @u: effect-specific structure (one of ff_constant_effect, ff_ramp_effect,
* ff_periodic_effect, ff_condition_effect, ff_rumble_effect) further
* defining effect parameters
*
* This structure is sent through ioctl from the application to the driver.
* To create a new effect aplication should set its @id to -1; the kernel
* will return assigned @id which can later be used to update or delete
* this effect.
*
* Direction of the effect is encoded as follows:
* 0 deg -> 0x0000 (down)
* 90 deg -> 0x4000 (left)
* 180 deg -> 0x8000 (up)
* 270 deg -> 0xC000 (right)
*/
struct ff_effect {
__u16 type;
/* Following field denotes the unique id assigned to an effect.
* If user sets if to -1, a new effect is created, and its id is returned in the same field
* Else, the user sets it to the effect id it wants to update.
*/
__s16 id;
__u16 direction; /* Direction. 0 deg -> 0x0000 (down)
90 deg -> 0x4000 (left)
180 deg -> 0x8000 (up)
270 deg -> 0xC000 (right)
*/
__u16 direction;
struct ff_trigger trigger;
struct ff_replay replay;
......@@ -784,6 +857,9 @@ struct ff_effect {
#define FF_INERTIA 0x56
#define FF_RAMP 0x57
#define FF_EFFECT_MIN FF_RUMBLE
#define FF_EFFECT_MAX FF_RAMP
/*
* Force feedback periodic effect types
*/
......@@ -795,6 +871,9 @@ struct ff_effect {
#define FF_SAW_DOWN 0x5c
#define FF_CUSTOM 0x5d
#define FF_WAVEFORM_MIN FF_SQUARE
#define FF_WAVEFORM_MAX FF_CUSTOM
/*
* Set ff device properties
*/
......@@ -864,12 +943,13 @@ struct input_dev {
unsigned long sndbit[NBITS(SND_MAX)];
unsigned long ffbit[NBITS(FF_MAX)];
unsigned long swbit[NBITS(SW_MAX)];
int ff_effects_max;
unsigned int keycodemax;
unsigned int keycodesize;
void *keycode;
struct ff_device *ff;
unsigned int repeat_key;
struct timer_list timer;
......@@ -895,8 +975,6 @@ struct input_dev {
void (*close)(struct input_dev *dev);
int (*flush)(struct input_dev *dev, struct file *file);
int (*event)(struct input_dev *dev, unsigned int type, unsigned int code, int value);
int (*upload_effect)(struct input_dev *dev, struct ff_effect *effect);
int (*erase_effect)(struct input_dev *dev, int effect_id);
struct input_handle *grab;
......@@ -904,9 +982,6 @@ struct input_dev {
unsigned int users;
struct class_device cdev;
struct device *dev; /* will be removed soon */
int dynalloc; /* temporarily */
struct list_head h_list;
struct list_head node;
......@@ -985,16 +1060,16 @@ struct input_handler {
void *private;
void (*event)(struct input_handle *handle, unsigned int type, unsigned int code, int value);
struct input_handle* (*connect)(struct input_handler *handler, struct input_dev *dev, struct input_device_id *id);
struct input_handle* (*connect)(struct input_handler *handler, struct input_dev *dev, const struct input_device_id *id);
void (*disconnect)(struct input_handle *handle);
void (*start)(struct input_handle *handle);
const struct file_operations *fops;
int minor;
char *name;
const char *name;
struct input_device_id *id_table;
struct input_device_id *blacklist;
const struct input_device_id *id_table;
const struct input_device_id *blacklist;
struct list_head h_list;
struct list_head node;
......@@ -1005,7 +1080,7 @@ struct input_handle {
void *private;
int open;
char *name;
const char *name;
struct input_dev *dev;
struct input_handler *handler;
......@@ -1019,12 +1094,6 @@ struct input_handle {
#define to_handle(n) container_of(n,struct input_handle,d_node)
#define to_handle_h(n) container_of(n,struct input_handle,h_node)
static inline void init_input_dev(struct input_dev *dev)
{
INIT_LIST_HEAD(&dev->h_list);
INIT_LIST_HEAD(&dev->node);
}
struct input_dev *input_allocate_device(void);
void input_free_device(struct input_dev *dev);
......@@ -1041,7 +1110,7 @@ static inline void input_put_device(struct input_dev *dev)
int input_register_device(struct input_dev *);
void input_unregister_device(struct input_dev *);
void input_register_handler(struct input_handler *);
int input_register_handler(struct input_handler *);
void input_unregister_handler(struct input_handler *);
int input_grab_device(struct input_handle *);
......@@ -1070,11 +1139,6 @@ static inline void input_report_abs(struct input_dev *dev, unsigned int code, in
input_event(dev, EV_ABS, code, value);
}
static inline void input_report_ff(struct input_dev *dev, unsigned int code, int value)
{
input_event(dev, EV_FF, code, value);
}
static inline void input_report_ff_status(struct input_dev *dev, unsigned int code, int value)
{
input_event(dev, EV_FF_STATUS, code, value);
......@@ -1108,5 +1172,61 @@ static inline void input_set_abs_params(struct input_dev *dev, int axis, int min
extern struct class input_class;
/**
* struct ff_device - force-feedback part of an input device
* @upload: Called to upload an new effect into device
* @erase: Called to erase an effect from device
* @playback: Called to request device to start playing specified effect
* @set_gain: Called to set specified gain
* @set_autocenter: Called to auto-center device
* @destroy: called by input core when parent input device is being
* destroyed
* @private: driver-specific data, will be freed automatically
* @ffbit: bitmap of force feedback capabilities truly supported by
* device (not emulated like ones in input_dev->ffbit)
* @mutex: mutex for serializing access to the device
* @max_effects: maximum number of effects supported by device
* @effects: pointer to an array of effects currently loaded into device
* @effect_owners: array of effect owners; when file handle owning
* an effect gets closed the effcet is automatically erased
*
* Every force-feedback device must implement upload() and playback()
* methods; erase() is optional. set_gain() and set_autocenter() need
* only be implemented if driver sets up FF_GAIN and FF_AUTOCENTER
* bits.
*/
struct ff_device {
int (*upload)(struct input_dev *dev, struct ff_effect *effect,
struct ff_effect *old);
int (*erase)(struct input_dev *dev, int effect_id);
int (*playback)(struct input_dev *dev, int effect_id, int value);
void (*set_gain)(struct input_dev *dev, u16 gain);
void (*set_autocenter)(struct input_dev *dev, u16 magnitude);
void (*destroy)(struct ff_device *);
void *private;
unsigned long ffbit[NBITS(FF_MAX)];
struct mutex mutex;
int max_effects;
struct ff_effect *effects;
struct file *effect_owners[];
};
int input_ff_create(struct input_dev *dev, int max_effects);
void input_ff_destroy(struct input_dev *dev);
int input_ff_event(struct input_dev *dev, unsigned int type, unsigned int code, int value);
int input_ff_upload(struct input_dev *dev, struct ff_effect *effect, struct file *file);
int input_ff_erase(struct input_dev *dev, int effect_id, struct file *file);
int input_ff_create_memless(struct input_dev *dev, void *data,
int (*play_effect)(struct input_dev *, void *, struct ff_effect *));
#endif
#endif
include/linux/libps2.h
View file @ a12f66fc
......@@ -47,5 +47,6 @@ int ps2_schedule_command(struct ps2dev *ps2dev, unsigned char *param, int comman
int ps2_handle_ack(struct ps2dev *ps2dev, unsigned char data);
int ps2_handle_response(struct ps2dev *ps2dev, unsigned char data);
void ps2_cmd_aborted(struct ps2dev *ps2dev);
int ps2_is_keyboard_id(char id);
#endif /* _LIBPS2_H */
include/linux/serio.h
View file @ a12f66fc
......@@ -217,5 +217,8 @@ static inline void serio_unpin_driver(struct serio *serio)
#define SERIO_LKKBD 0x28
#define SERIO_ELO 0x29
#define SERIO_MICROTOUCH 0x30
#define SERIO_PENMOUNT 0x31
#define SERIO_TOUCHRIGHT 0x32
#define SERIO_TOUCHWIN 0x33
#endif
include/linux/uinput.h
View file @ a12f66fc
......@@ -22,12 +22,18 @@
* Author: Aristeu Sergio Rozanski Filho <aris@cathedrallabs.org>
*
* Changes/Revisions:
* 0.3 24/05/2006 (Anssi Hannula <anssi.hannulagmail.com>)
* - update ff support for the changes in kernel interface
* - add UINPUT_VERSION
* 0.2 16/10/2004 (Micah Dowty <micah@navi.cx>)
* - added force feedback support
* - added UI_SET_PHYS
* 0.1 20/06/2002
* - first public version
*/
#define UINPUT_VERSION 3
#ifdef __KERNEL__
#define UINPUT_MINOR 223
#define UINPUT_NAME "uinput"
......@@ -45,7 +51,10 @@ struct uinput_request {
union {
int effect_id;
struct ff_effect* effect;
struct {
struct ff_effect *effect;
struct ff_effect *old;
} upload;
} u;
};
......@@ -58,6 +67,7 @@ struct uinput_device {
unsigned char head;
unsigned char tail;
struct input_event buff[UINPUT_BUFFER_SIZE];
int ff_effects_max;
struct uinput_request *requests[UINPUT_NUM_REQUESTS];
wait_queue_head_t requests_waitq;
......@@ -69,6 +79,7 @@ struct uinput_ff_upload {
int request_id;
int retval;
struct ff_effect effect;
struct ff_effect old;
};
struct uinput_ff_erase {
......@@ -98,33 +109,33 @@ struct uinput_ff_erase {
#define UI_BEGIN_FF_ERASE _IOWR(UINPUT_IOCTL_BASE, 202, struct uinput_ff_erase)
#define UI_END_FF_ERASE _IOW(UINPUT_IOCTL_BASE, 203, struct uinput_ff_erase)
/* To write a force-feedback-capable driver, the upload_effect
/*
* To write a force-feedback-capable driver, the upload_effect
* and erase_effect callbacks in input_dev must be implemented.
* The uinput driver will generate a fake input event when one of
* these callbacks are invoked. The userspace code then uses
* ioctls to retrieve additional parameters and send the return code.
* The callback blocks until this return code is sent.
*
* The described callback mechanism is only used if EV_FF is set.
* Otherwise, default implementations of upload_effect and erase_effect
* are used.
* The described callback mechanism is only used if ff_effects_max
* is set.
*
* To implement upload_effect():
* 1. Wait for an event with type==EV_UINPUT and code==UI_FF_UPLOAD.
* 1. Wait for an event with type == EV_UINPUT and code == UI_FF_UPLOAD.
* A request ID will be given in 'value'.
* 2. Allocate a uinput_ff_upload struct, fill in request_id with
* the 'value' from the EV_UINPUT event.
* 3. Issue a UI_BEGIN_FF_UPLOAD ioctl, giving it the
* uinput_ff_upload struct. It will be filled in with the
* ff_effect passed to upload_effect().
* 4. Perform the effect upload, and place the modified ff_effect
* and a return code back into the uinput_ff_upload struct.
* ff_effects passed to upload_effect().
* 4. Perform the effect upload, and place a return code back into
the uinput_ff_upload struct.
* 5. Issue a UI_END_FF_UPLOAD ioctl, also giving it the
* uinput_ff_upload_effect struct. This will complete execution
* of our upload_effect() handler.
*
* To implement erase_effect():
* 1. Wait for an event with type==EV_UINPUT and code==UI_FF_ERASE.
* 1. Wait for an event with type == EV_UINPUT and code == UI_FF_ERASE.
* A request ID will be given in 'value'.
* 2. Allocate a uinput_ff_erase struct, fill in request_id with
* the 'value' from the EV_UINPUT event.
......@@ -133,13 +144,13 @@ struct uinput_ff_erase {
* effect ID passed to erase_effect().
* 4. Perform the effect erasure, and place a return code back
* into the uinput_ff_erase struct.
* and a return code back into the uinput_ff_erase struct.
* 5. Issue a UI_END_FF_ERASE ioctl, also giving it the
* uinput_ff_erase_effect struct. This will complete execution
* of our erase_effect() handler.
*/
/* This is the new event type, used only by uinput.
/*
* This is the new event type, used only by uinput.
* 'code' is UI_FF_UPLOAD or UI_FF_ERASE, and 'value'
* is the unique request ID. This number was picked
* arbitrarily, above EV_MAX (since the input system
......
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