HID: asus: Add support for T100 touchpad

[platform/kernel/linux-rpi.git] / drivers / hid / hid-asus.c

diff --git a/drivers/hid/hid-asus.c b/drivers/hid/hid-asus.c
index a6268f2..7cdb218 100644 (file)
--- a/drivers/hid/hid-asus.c
+++ b/drivers/hid/hid-asus.c
@@ -29,6 +29,7 @@
 #include <linux/hid.h>
 #include <linux/module.h>
 #include <linux/input/mt.h>
+#include <linux/usb.h> /* For to_usb_interface for T100 touchpad intf check */
 
 #include "hid-ids.h"
 
@@ -38,6 +39,8 @@ MODULE_AUTHOR("Victor Vlasenko <victor.vlasenko@sysgears.com>");
 MODULE_AUTHOR("Frederik Wenigwieser <frederik.wenigwieser@gmail.com>");
 MODULE_DESCRIPTION("Asus HID Keyboard and TouchPad");
 
+#define T100_TPAD_INTF 2
+
 #define FEATURE_REPORT_ID 0x0d
 #define INPUT_REPORT_ID 0x5d
 #define FEATURE_KBD_REPORT_ID 0x5a
@@ -50,6 +53,7 @@ MODULE_DESCRIPTION("Asus HID Keyboard and TouchPad");
 #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
@@ -70,11 +74,12 @@ 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 I2C_TOUCHPAD_QUIRKS                    (QUIRK_NO_INIT_REPORTS | \
+#define TOUCHPAD_QUIRKS                                (QUIRK_NO_INIT_REPORTS | \
                                                 QUIRK_SKIP_INPUT_MAPPING | \
                                                 QUIRK_IS_MULTITOUCH)
 
@@ -337,7 +342,10 @@ static int asus_input_configured(struct hid_device *hdev, struct hid_input *hi)
        if (drvdata->quirks & QUIRK_IS_MULTITOUCH) {
                int ret;
 
-               input_set_abs_params(input, ABS_MT_POSITION_X, 0, MAX_X, 0, 0);
+               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_TOOL_WIDTH, 0, MAX_TOUCH_MAJOR, 0, 0);
                input_set_abs_params(input, ABS_MT_TOUCH_MAJOR, 0, MAX_TOUCH_MAJOR, 0, 0);
@@ -422,6 +430,33 @@ static int asus_input_mapping(struct hid_device *hdev,
                return 1;
        }
 
+       if ((usage->hid & HID_USAGE_PAGE) == HID_UP_MSVENDOR) {
+               set_bit(EV_REP, hi->input->evbit);
+               switch (usage->hid & HID_USAGE) {
+               case 0xff01: asus_map_key_clear(BTN_1); break;
+               case 0xff02: asus_map_key_clear(BTN_2); break;
+               case 0xff03: asus_map_key_clear(BTN_3); break;
+               case 0xff04: asus_map_key_clear(BTN_4); break;
+               case 0xff05: asus_map_key_clear(BTN_5); break;
+               case 0xff06: asus_map_key_clear(BTN_6); break;
+               case 0xff07: asus_map_key_clear(BTN_7); break;
+               case 0xff08: asus_map_key_clear(BTN_8); break;
+               case 0xff09: asus_map_key_clear(BTN_9); break;
+               case 0xff0a: asus_map_key_clear(BTN_A); break;
+               case 0xff0b: asus_map_key_clear(BTN_B); break;
+               case 0x00f1: asus_map_key_clear(KEY_WLAN);      break;
+               case 0x00f2: asus_map_key_clear(KEY_BRIGHTNESSDOWN);    break;
+               case 0x00f3: asus_map_key_clear(KEY_BRIGHTNESSUP);      break;
+               case 0x00f4: asus_map_key_clear(KEY_DISPLAY_OFF);       break;
+               case 0x00f7: asus_map_key_clear(KEY_CAMERA);    break;
+               case 0x00f8: asus_map_key_clear(KEY_PROG1);     break;
+               default:
+                       return 0;
+               }
+
+               return 1;
+       }
+
        if (drvdata->quirks & QUIRK_NO_CONSUMER_USAGES &&
                (usage->hid & HID_USAGE_PAGE) == HID_UP_CONSUMER) {
                switch (usage->hid & HID_USAGE) {
@@ -490,6 +525,13 @@ static int asus_probe(struct hid_device *hdev, const struct hid_device_id *id)
 
        drvdata->quirks = id->driver_data;
 
+       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 (drvdata->quirks & QUIRK_NO_INIT_REPORTS)
                hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS;
 
@@ -564,7 +606,7 @@ 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), I2C_TOUCHPAD_QUIRKS },
+               USB_DEVICE_ID_ASUSTEK_I2C_TOUCHPAD), TOUCHPAD_QUIRKS },
        { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
                USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD1) },
        { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
@@ -572,6 +614,9 @@ static const struct hid_device_id asus_devices[] = {
        { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
                USB_DEVICE_ID_ASUSTEK_T100_KEYBOARD),
          QUIRK_T100_KEYBOARD | QUIRK_NO_CONSUMER_USAGES },
+       { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_ASUS_AK1D) },
+       { HID_USB_DEVICE(USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_ASUS_MD_5110) },
+       { HID_USB_DEVICE(USB_VENDOR_ID_JESS, USB_DEVICE_ID_ASUS_MD_5112) },
        { }
 };
 MODULE_DEVICE_TABLE(hid, asus_devices);