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Commit c81760b9 authored by Hans de Goede's avatar Hans de Goede Committed by Jiri Kosina
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HID: asus: Parameterize the touchpad code 

Instead of having hardcoded (#define-d) values use a struct describing
the various touchpad parameters. This is a preparation patch for
improving the T100TA touchpad support as well as for adding T100CHI
touchpad support.
Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
parent 57573c54
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Showing with 67 additions and 47 deletions
drivers/hid/hid-asus.c
View file @ c81760b9
......@@ -44,22 +44,13 @@ MODULE_DESCRIPTION("Asus HID Keyboard and TouchPad");
#define FEATURE_REPORT_ID 0x0d
#define INPUT_REPORT_ID 0x5d
#define FEATURE_KBD_REPORT_ID 0x5a
#define INPUT_REPORT_SIZE 28
#define FEATURE_KBD_REPORT_SIZE 16
#define SUPPORT_KBD_BACKLIGHT BIT(0)
#define MAX_CONTACTS 5
#define MAX_X 2794
#define MAX_X_T100 2240
#define MAX_Y 1758
#define MAX_TOUCH_MAJOR 8
#define MAX_PRESSURE 128
#define CONTACT_DATA_SIZE 5
#define BTN_LEFT_MASK 0x01
#define CONTACT_TOOL_TYPE_MASK 0x80
#define CONTACT_X_MSB_MASK 0xf0
......@@ -74,12 +65,11 @@ MODULE_DESCRIPTION("Asus HID Keyboard and TouchPad");
#define QUIRK_NO_CONSUMER_USAGES BIT(4)
#define QUIRK_USE_KBD_BACKLIGHT BIT(5)
#define QUIRK_T100_KEYBOARD BIT(6)
#define QUIRK_T100_TOUCHPAD BIT(7)
#define I2C_KEYBOARD_QUIRKS (QUIRK_FIX_NOTEBOOK_REPORT | \
QUIRK_NO_INIT_REPORTS | \
QUIRK_NO_CONSUMER_USAGES)
#define TOUCHPAD_QUIRKS (QUIRK_NO_INIT_REPORTS | \
#define I2C_TOUCHPAD_QUIRKS (QUIRK_NO_INIT_REPORTS | \
QUIRK_SKIP_INPUT_MAPPING | \
QUIRK_IS_MULTITOUCH)
......@@ -93,19 +83,43 @@ struct asus_kbd_leds {
bool removed;
};
struct asus_touchpad_info {
int max_x;
int max_y;
int contact_size;
int max_contacts;
};
struct asus_drvdata {
unsigned long quirks;
struct input_dev *input;
struct asus_kbd_leds *kbd_backlight;
const struct asus_touchpad_info *tp;
bool enable_backlight;
};
static void asus_report_contact_down(struct input_dev *input,
static const struct asus_touchpad_info asus_i2c_tp = {
.max_x = 2794,
.max_y = 1758,
.contact_size = 5,
.max_contacts = 5,
};
static const struct asus_touchpad_info asus_t100ta_tp = {
.max_x = 2240,
.max_y = 1758,
.contact_size = 5,
.max_contacts = 5,
};
static void asus_report_contact_down(struct asus_drvdata *drvdat,
int toolType, u8 *data)
{
int touch_major, pressure;
int x = (data[0] & CONTACT_X_MSB_MASK) << 4 | data[1];
int y = MAX_Y - ((data[0] & CONTACT_Y_MSB_MASK) << 8 | data[2]);
struct input_dev *input = drvdat->input;
int touch_major, pressure, x, y;
x = (data[0] & CONTACT_X_MSB_MASK) << 4 | data[1];
y = drvdat->tp->max_y - ((data[0] & CONTACT_Y_MSB_MASK) << 8 | data[2]);
if (toolType == MT_TOOL_PALM) {
touch_major = MAX_TOUCH_MAJOR;
......@@ -122,9 +136,9 @@ static void asus_report_contact_down(struct input_dev *input,
}
/* Required for Synaptics Palm Detection */
static void asus_report_tool_width(struct input_dev *input)
static void asus_report_tool_width(struct asus_drvdata *drvdat)
{
struct input_mt *mt = input->mt;
struct input_mt *mt = drvdat->input->mt;
struct input_mt_slot *oldest;
int oldid, count, i;
......@@ -146,35 +160,40 @@ static void asus_report_tool_width(struct input_dev *input)
}
if (oldest) {
input_report_abs(input, ABS_TOOL_WIDTH,
input_report_abs(drvdat->input, ABS_TOOL_WIDTH,
input_mt_get_value(oldest, ABS_MT_TOUCH_MAJOR));
}
}
static void asus_report_input(struct input_dev *input, u8 *data)
static int asus_report_input(struct asus_drvdata *drvdat, u8 *data, int size)
{
int i;
u8 *contactData = data + 2;
for (i = 0; i < MAX_CONTACTS; i++) {
if (size != 3 + drvdat->tp->contact_size * drvdat->tp->max_contacts)
return 0;
for (i = 0; i < drvdat->tp->max_contacts; i++) {
bool down = !!(data[1] & BIT(i+3));
int toolType = contactData[3] & CONTACT_TOOL_TYPE_MASK ?
MT_TOOL_PALM : MT_TOOL_FINGER;
input_mt_slot(input, i);
input_mt_report_slot_state(input, toolType, down);
input_mt_slot(drvdat->input, i);
input_mt_report_slot_state(drvdat->input, toolType, down);
if (down) {
asus_report_contact_down(input, toolType, contactData);
contactData += CONTACT_DATA_SIZE;
asus_report_contact_down(drvdat, toolType, contactData);
contactData += drvdat->tp->contact_size;
}
}
input_report_key(input, BTN_LEFT, data[1] & BTN_LEFT_MASK);
asus_report_tool_width(input);
input_report_key(drvdat->input, BTN_LEFT, data[1] & BTN_LEFT_MASK);
asus_report_tool_width(drvdat);
input_mt_sync_frame(drvdat->input);
input_sync(drvdat->input);
input_mt_sync_frame(input);
input_sync(input);
return 1;
}
static int asus_raw_event(struct hid_device *hdev,
......@@ -182,12 +201,8 @@ static int asus_raw_event(struct hid_device *hdev,
{
struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
if (drvdata->quirks & QUIRK_IS_MULTITOUCH &&
data[0] == INPUT_REPORT_ID &&
size == INPUT_REPORT_SIZE) {
asus_report_input(drvdata->input, data);
return 1;
}
if (drvdata->tp && data[0] == INPUT_REPORT_ID)
return asus_report_input(drvdata, data, size);
return 0;
}
......@@ -339,14 +354,13 @@ static int asus_input_configured(struct hid_device *hdev, struct hid_input *hi)
struct input_dev *input = hi->input;
struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
if (drvdata->quirks & QUIRK_IS_MULTITOUCH) {
if (drvdata->tp) {
int ret;
if (drvdata->quirks & QUIRK_T100_TOUCHPAD)
input_set_abs_params(input, ABS_MT_POSITION_X, 0, MAX_X_T100, 0, 0);
else
input_set_abs_params(input, ABS_MT_POSITION_X, 0, MAX_X, 0, 0);
input_set_abs_params(input, ABS_MT_POSITION_Y, 0, MAX_Y, 0, 0);
input_set_abs_params(input, ABS_MT_POSITION_X, 0,
drvdata->tp->max_x, 0, 0);
input_set_abs_params(input, ABS_MT_POSITION_Y, 0,
drvdata->tp->max_y, 0, 0);
input_set_abs_params(input, ABS_TOOL_WIDTH, 0, MAX_TOUCH_MAJOR, 0, 0);
input_set_abs_params(input, ABS_MT_TOUCH_MAJOR, 0, MAX_TOUCH_MAJOR, 0, 0);
input_set_abs_params(input, ABS_MT_PRESSURE, 0, MAX_PRESSURE, 0, 0);
......@@ -354,7 +368,8 @@ static int asus_input_configured(struct hid_device *hdev, struct hid_input *hi)
__set_bit(BTN_LEFT, input->keybit);
__set_bit(INPUT_PROP_BUTTONPAD, input->propbit);
ret = input_mt_init_slots(input, MAX_CONTACTS, INPUT_MT_POINTER);
ret = input_mt_init_slots(input, drvdata->tp->max_contacts,
INPUT_MT_POINTER);
if (ret) {
hid_err(hdev, "Asus input mt init slots failed: %d\n", ret);
......@@ -504,7 +519,7 @@ static int __maybe_unused asus_reset_resume(struct hid_device *hdev)
{
struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
if (drvdata->quirks & QUIRK_IS_MULTITOUCH)
if (drvdata->tp)
return asus_start_multitouch(hdev);
return 0;
......@@ -525,11 +540,16 @@ static int asus_probe(struct hid_device *hdev, const struct hid_device_id *id)
drvdata->quirks = id->driver_data;
if (drvdata->quirks & QUIRK_IS_MULTITOUCH)
drvdata->tp = &asus_i2c_tp;
if (drvdata->quirks & QUIRK_T100_KEYBOARD) {
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
if (intf->altsetting->desc.bInterfaceNumber == T100_TPAD_INTF)
drvdata->quirks = TOUCHPAD_QUIRKS | QUIRK_T100_TOUCHPAD;
if (intf->altsetting->desc.bInterfaceNumber == T100_TPAD_INTF) {
drvdata->quirks = QUIRK_SKIP_INPUT_MAPPING;
drvdata->tp = &asus_t100ta_tp;
}
}
if (drvdata->quirks & QUIRK_NO_INIT_REPORTS)
......@@ -553,13 +573,13 @@ static int asus_probe(struct hid_device *hdev, const struct hid_device_id *id)
goto err_stop_hw;
}
if (drvdata->quirks & QUIRK_IS_MULTITOUCH) {
if (drvdata->tp) {
drvdata->input->name = "Asus TouchPad";
} else {
drvdata->input->name = "Asus Keyboard";
}
if (drvdata->quirks & QUIRK_IS_MULTITOUCH) {
if (drvdata->tp) {
ret = asus_start_multitouch(hdev);
if (ret)
goto err_stop_hw;
......@@ -606,7 +626,7 @@ static const struct hid_device_id asus_devices[] = {
{ HID_I2C_DEVICE(USB_VENDOR_ID_ASUSTEK,
USB_DEVICE_ID_ASUSTEK_I2C_KEYBOARD), I2C_KEYBOARD_QUIRKS},
{ HID_I2C_DEVICE(USB_VENDOR_ID_ASUSTEK,
USB_DEVICE_ID_ASUSTEK_I2C_TOUCHPAD), TOUCHPAD_QUIRKS },
USB_DEVICE_ID_ASUSTEK_I2C_TOUCHPAD), I2C_TOUCHPAD_QUIRKS },
{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD1) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
......
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