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: Hans de Goede <hdegoede@xxxxxxxxxx>
---
drivers/hid/hid-asus.c | 114 +++++++++++++++++++++++++++++--------------------
1 file changed, 67 insertions(+), 47 deletions(-)
diff --git a/drivers/hid/hid-asus.c b/drivers/hid/hid-asus.c
index b5887eaedfca..4632481c5ab7 100644
--- a/drivers/hid/hid-asus.c
+++ b/drivers/hid/hid-asus.c
@@ -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);
@@ -477,7 +492,7 @@ 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;
@@ -498,11 +513,16 @@ 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)
@@ -526,13 +546,13 @@ 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;
@@ -579,7 +599,7 @@ 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,
--
2.13.0
--
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