Skip to content

L
linux
Commit c41269fd authored by Hans Verkuil's avatar Hans Verkuil Committed by Mauro Carvalho Chehab
Browse files
Options

V4L/DVB (10888): radio-sf16fmi: convert to v4l2_device. 

Signed-off-by: default avatarHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 922c78e9
Show whitespace changes
Inline Side-by-side
Showing with 135 additions and 149 deletions
drivers/media/radio/radio-sf16fmi.c
View file @ c41269fd
......@@ -22,113 +22,110 @@
#include <linux/init.h> /* Initdata */
#include <linux/ioport.h> /* request_region */
#include <linux/delay.h> /* udelay */
#include <linux/videodev2.h> /* kernel radio structs */
#include <media/v4l2-common.h>
#include <media/v4l2-ioctl.h>
#include <linux/isapnp.h>
#include <asm/io.h> /* outb, outb_p */
#include <asm/uaccess.h> /* copy to/from user */
#include <linux/mutex.h>
#include <linux/videodev2.h> /* kernel radio structs */
#include <linux/io.h> /* outb, outb_p */
#include <linux/uaccess.h> /* copy to/from user */
#include <media/v4l2-device.h>
#include <media/v4l2-ioctl.h>
#define RADIO_VERSION KERNEL_VERSION(0,0,2)
MODULE_AUTHOR("Petr Vandrovec, vandrove@vc.cvut.cz and M. Kirkwood");
MODULE_DESCRIPTION("A driver for the SF16MI radio.");
MODULE_LICENSE("GPL");
static struct v4l2_queryctrl radio_qctrl[] = {
{
.id = V4L2_CID_AUDIO_MUTE,
.name = "Mute",
.minimum = 0,
.maximum = 1,
.default_value = 1,
.type = V4L2_CTRL_TYPE_BOOLEAN,
}
};
static int io = -1;
static int radio_nr = -1;
module_param(io, int, 0);
MODULE_PARM_DESC(io, "I/O address of the SF16MI card (0x284 or 0x384)");
module_param(radio_nr, int, 0);
#define RADIO_VERSION KERNEL_VERSION(0, 0, 2)
struct fmi_device
struct fmi
{
unsigned long in_use;
int port;
struct v4l2_device v4l2_dev;
struct video_device vdev;
int io;
int curvol; /* 1 or 0 */
unsigned long curfreq; /* freq in kHz */
__u32 flags;
struct mutex lock;
};
static int io = -1;
static int radio_nr = -1;
static struct pnp_dev *dev = NULL;
static struct mutex lock;
static struct fmi fmi_card;
static struct pnp_dev *dev;
/* freq is in 1/16 kHz to internal number, hw precision is 50 kHz */
/* It is only useful to give freq in intervall of 800 (=0.05Mhz),
* other bits will be truncated, e.g 92.7400016 -> 92.7, but
* 92.7400017 -> 92.75
*/
#define RSF16_ENCODE(x) ((x)/800+214)
#define RSF16_MINFREQ 87*16000
#define RSF16_MAXFREQ 108*16000
#define RSF16_ENCODE(x) ((x) / 800 + 214)
#define RSF16_MINFREQ (87 * 16000)
#define RSF16_MAXFREQ (108 * 16000)
static void outbits(int bits, unsigned int data, int port)
static void outbits(int bits, unsigned int data, int io)
{
while(bits--) {
if(data & 1) {
outb(5, port);
while (bits--) {
if (data & 1) {
outb(5, io);
udelay(6);
outb(7, port);
outb(7, io);
udelay(6);
} else {
outb(1, port);
outb(1, io);
udelay(6);
outb(3, port);
outb(3, io);
udelay(6);
}
data>>=1;
data >>= 1;
}
}
static inline void fmi_mute(int port)
static inline void fmi_mute(struct fmi *fmi)
{
mutex_lock(&lock);
outb(0x00, port);
mutex_unlock(&lock);
mutex_lock(&fmi->lock);
outb(0x00, fmi->io);
mutex_unlock(&fmi->lock);
}
static inline void fmi_unmute(int port)
static inline void fmi_unmute(struct fmi *fmi)
{
mutex_lock(&lock);
outb(0x08, port);
mutex_unlock(&lock);
mutex_lock(&fmi->lock);
outb(0x08, fmi->io);
mutex_unlock(&fmi->lock);
}
static inline int fmi_setfreq(struct fmi_device *dev)
static inline int fmi_setfreq(struct fmi *fmi, unsigned long freq)
{
int myport = dev->port;
unsigned long freq = dev->curfreq;
mutex_lock(&fmi->lock);
fmi->curfreq = freq;
mutex_lock(&lock);
outbits(16, RSF16_ENCODE(freq), myport);
outbits(8, 0xC0, myport);
outbits(16, RSF16_ENCODE(freq), fmi->io);
outbits(8, 0xC0, fmi->io);
msleep(143); /* was schedule_timeout(HZ/7) */
mutex_unlock(&lock);
if (dev->curvol) fmi_unmute(myport);
mutex_unlock(&fmi->lock);
if (fmi->curvol)
fmi_unmute(fmi);
return 0;
}
static inline int fmi_getsigstr(struct fmi_device *dev)
static inline int fmi_getsigstr(struct fmi *fmi)
{
int val;
int res;
int myport = dev->port;
mutex_lock(&lock);
val = dev->curvol ? 0x08 : 0x00; /* unmute/mute */
outb(val, myport);
outb(val | 0x10, myport);
mutex_lock(&fmi->lock);
val = fmi->curvol ? 0x08 : 0x00; /* unmute/mute */
outb(val, fmi->io);
outb(val | 0x10, fmi->io);
msleep(143); /* was schedule_timeout(HZ/7) */
res = (int)inb(myport+1);
outb(val, myport);
res = (int)inb(fmi->io + 1);
outb(val, fmi->io);
mutex_unlock(&lock);
mutex_unlock(&fmi->lock);
return (res & 2) ? 0 : 0xFFFF;
}
......@@ -137,9 +134,9 @@ static int vidioc_querycap(struct file *file, void *priv,
{
strlcpy(v->driver, "radio-sf16fmi", sizeof(v->driver));
strlcpy(v->card, "SF16-FMx radio", sizeof(v->card));
sprintf(v->bus_info, "ISA");
strlcpy(v->bus_info, "ISA", sizeof(v->bus_info));
v->version = RADIO_VERSION;
v->capabilities = V4L2_CAP_TUNER;
v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO;
return 0;
}
......@@ -147,18 +144,18 @@ static int vidioc_g_tuner(struct file *file, void *priv,
struct v4l2_tuner *v)
{
int mult;
struct fmi_device *fmi = video_drvdata(file);
struct fmi *fmi = video_drvdata(file);
if (v->index > 0)
return -EINVAL;
strcpy(v->name, "FM");
strlcpy(v->name, "FM", sizeof(v->name));
v->type = V4L2_TUNER_RADIO;
mult = (fmi->flags & V4L2_TUNER_CAP_LOW) ? 1 : 1000;
v->rangelow = RSF16_MINFREQ/mult;
v->rangehigh = RSF16_MAXFREQ/mult;
v->rangelow = RSF16_MINFREQ / mult;
v->rangehigh = RSF16_MAXFREQ / mult;
v->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_MODE_STEREO;
v->capability = fmi->flags&V4L2_TUNER_CAP_LOW;
v->capability = fmi->flags & V4L2_TUNER_CAP_LOW;
v->audmode = V4L2_TUNER_MODE_STEREO;
v->signal = fmi_getsigstr(fmi);
return 0;
......@@ -167,32 +164,29 @@ static int vidioc_g_tuner(struct file *file, void *priv,
static int vidioc_s_tuner(struct file *file, void *priv,
struct v4l2_tuner *v)
{
if (v->index > 0)
return -EINVAL;
return 0;
return v->index ? -EINVAL : 0;
}
static int vidioc_s_frequency(struct file *file, void *priv,
struct v4l2_frequency *f)
{
struct fmi_device *fmi = video_drvdata(file);
struct fmi *fmi = video_drvdata(file);
if (!(fmi->flags & V4L2_TUNER_CAP_LOW))
f->frequency *= 1000;
if (f->frequency < RSF16_MINFREQ ||
f->frequency > RSF16_MAXFREQ )
f->frequency > RSF16_MAXFREQ)
return -EINVAL;
/*rounding in steps of 800 to match th freq
/* rounding in steps of 800 to match the freq
that will be used */
fmi->curfreq = (f->frequency/800)*800;
fmi_setfreq(fmi);
fmi_setfreq(fmi, (f->frequency / 800) * 800);
return 0;
}
static int vidioc_g_frequency(struct file *file, void *priv,
struct v4l2_frequency *f)
{
struct fmi_device *fmi = video_drvdata(file);
struct fmi *fmi = video_drvdata(file);
f->type = V4L2_TUNER_RADIO;
f->frequency = fmi->curfreq;
......@@ -204,14 +198,9 @@ static int vidioc_g_frequency(struct file *file, void *priv,
static int vidioc_queryctrl(struct file *file, void *priv,
struct v4l2_queryctrl *qc)
{
int i;
for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) {
if (qc->id && qc->id == radio_qctrl[i].id) {
memcpy(qc, &(radio_qctrl[i]),
sizeof(*qc));
return 0;
}
switch (qc->id) {
case V4L2_CID_AUDIO_MUTE:
return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
}
return -EINVAL;
}
......@@ -219,7 +208,7 @@ static int vidioc_queryctrl(struct file *file, void *priv,
static int vidioc_g_ctrl(struct file *file, void *priv,
struct v4l2_control *ctrl)
{
struct fmi_device *fmi = video_drvdata(file);
struct fmi *fmi = video_drvdata(file);
switch (ctrl->id) {
case V4L2_CID_AUDIO_MUTE:
......@@ -232,31 +221,20 @@ static int vidioc_g_ctrl(struct file *file, void *priv,
static int vidioc_s_ctrl(struct file *file, void *priv,
struct v4l2_control *ctrl)
{
struct fmi_device *fmi = video_drvdata(file);
struct fmi *fmi = video_drvdata(file);
switch (ctrl->id) {
case V4L2_CID_AUDIO_MUTE:
if (ctrl->value)
fmi_mute(fmi->port);
fmi_mute(fmi);
else
fmi_unmute(fmi->port);
fmi_unmute(fmi);
fmi->curvol = ctrl->value;
return 0;
}
return -EINVAL;
}
static int vidioc_g_audio(struct file *file, void *priv,
struct v4l2_audio *a)
{
if (a->index > 1)
return -EINVAL;
strcpy(a->name, "Radio");
a->capability = V4L2_AUDCAP_STEREO;
return 0;
}
static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
{
*i = 0;
......@@ -265,36 +243,38 @@ static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
static int vidioc_s_input(struct file *filp, void *priv, unsigned int i)
{
if (i != 0)
return -EINVAL;
return 0;
return i ? -EINVAL : 0;
}
static int vidioc_s_audio(struct file *file, void *priv,
static int vidioc_g_audio(struct file *file, void *priv,
struct v4l2_audio *a)
{
if (a->index != 0)
return -EINVAL;
a->index = 0;
strlcpy(a->name, "Radio", sizeof(a->name));
a->capability = V4L2_AUDCAP_STEREO;
return 0;
}
static struct fmi_device fmi_unit;
static int vidioc_s_audio(struct file *file, void *priv,
struct v4l2_audio *a)
{
return a->index ? -EINVAL : 0;
}
static int fmi_exclusive_open(struct file *file)
static int fmi_open(struct file *file)
{
return test_and_set_bit(0, &fmi_unit.in_use) ? -EBUSY : 0;
return 0;
}
static int fmi_exclusive_release(struct file *file)
static int fmi_release(struct file *file)
{
clear_bit(0, &fmi_unit.in_use);
return 0;
}
static const struct v4l2_file_operations fmi_fops = {
.owner = THIS_MODULE,
.open = fmi_exclusive_open,
.release = fmi_exclusive_release,
.open = fmi_open,
.release = fmi_release,
.ioctl = video_ioctl2,
};
......@@ -313,13 +293,6 @@ static const struct v4l2_ioctl_ops fmi_ioctl_ops = {
.vidioc_s_ctrl = vidioc_s_ctrl,
};
static struct video_device fmi_radio = {
.name = "SF16FMx radio",
.fops = &fmi_fops,
.ioctl_ops = &fmi_ioctl_ops,
.release = video_device_release_empty,
};
/* ladis: this is my card. does any other types exist? */
static struct isapnp_device_id id_table[] __devinitdata = {
{ ISAPNP_ANY_ID, ISAPNP_ANY_ID,
......@@ -344,7 +317,7 @@ static int __init isapnp_fmi_probe(void)
if (pnp_device_attach(dev) < 0)
return -EAGAIN;
if (pnp_activate_dev(dev) < 0) {
printk ("radio-sf16fmi: PnP configure failed (out of resources?)\n");
printk(KERN_ERR "radio-sf16fmi: PnP configure failed (out of resources?)\n");
pnp_device_detach(dev);
return -ENOMEM;
}
......@@ -354,59 +327,72 @@ static int __init isapnp_fmi_probe(void)
}
i = pnp_port_start(dev, 0);
printk ("radio-sf16fmi: PnP reports card at %#x\n", i);
printk(KERN_INFO "radio-sf16fmi: PnP reports card at %#x\n", i);
return i;
}
static int __init fmi_init(void)
{
struct fmi *fmi = &fmi_card;
struct v4l2_device *v4l2_dev = &fmi->v4l2_dev;
int res;
if (io < 0)
io = isapnp_fmi_probe();
if (io < 0) {
printk(KERN_ERR "radio-sf16fmi: No PnP card found.\n");
return io;
strlcpy(v4l2_dev->name, "sf16fmi", sizeof(v4l2_dev->name));
fmi->io = io;
if (fmi->io < 0) {
v4l2_err(v4l2_dev, "No PnP card found.\n");
return fmi->io;
}
if (!request_region(io, 2, "radio-sf16fmi")) {
printk(KERN_ERR "radio-sf16fmi: port 0x%x already in use\n", io);
v4l2_err(v4l2_dev, "port 0x%x already in use\n", fmi->io);
pnp_device_detach(dev);
return -EBUSY;
}
fmi_unit.port = io;
fmi_unit.curvol = 0;
fmi_unit.curfreq = 0;
fmi_unit.flags = V4L2_TUNER_CAP_LOW;
video_set_drvdata(&fmi_radio, &fmi_unit);
res = v4l2_device_register(NULL, v4l2_dev);
if (res < 0) {
release_region(fmi->io, 2);
pnp_device_detach(dev);
v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
return res;
}
fmi->flags = V4L2_TUNER_CAP_LOW;
strlcpy(fmi->vdev.name, v4l2_dev->name, sizeof(fmi->vdev.name));
fmi->vdev.v4l2_dev = v4l2_dev;
fmi->vdev.fops = &fmi_fops;
fmi->vdev.ioctl_ops = &fmi_ioctl_ops;
fmi->vdev.release = video_device_release_empty;
video_set_drvdata(&fmi->vdev, fmi);
mutex_init(&lock);
mutex_init(&fmi->lock);
if (video_register_device(&fmi_radio, VFL_TYPE_RADIO, radio_nr) < 0) {
release_region(io, 2);
if (video_register_device(&fmi->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
v4l2_device_unregister(v4l2_dev);
release_region(fmi->io, 2);
pnp_device_detach(dev);
return -EINVAL;
}
printk(KERN_INFO "SF16FMx radio card driver at 0x%x\n", io);
v4l2_info(v4l2_dev, "card driver at 0x%x\n", fmi->io);
/* mute card - prevents noisy bootups */
fmi_mute(io);
fmi_mute(fmi);
return 0;
}
MODULE_AUTHOR("Petr Vandrovec, vandrove@vc.cvut.cz and M. Kirkwood");
MODULE_DESCRIPTION("A driver for the SF16MI radio.");
MODULE_LICENSE("GPL");
module_param(io, int, 0);
MODULE_PARM_DESC(io, "I/O address of the SF16MI card (0x284 or 0x384)");
module_param(radio_nr, int, 0);
static void __exit fmi_cleanup_module(void)
static void __exit fmi_exit(void)
{
video_unregister_device(&fmi_radio);
release_region(io, 2);
struct fmi *fmi = &fmi_card;
video_unregister_device(&fmi->vdev);
v4l2_device_unregister(&fmi->v4l2_dev);
release_region(fmi->io, 2);
if (dev)
pnp_device_detach(dev);
}
module_init(fmi_init);
module_exit(fmi_cleanup_module);
module_exit(fmi_exit);
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment
GitLab Nexedi Edition | About GitLab | About Nexedi | 沪ICP备2021021310号-2 | 沪ICP备2021021310号-7