Input: bcm5974 - add support for touchpads found in MacBookAir4,2

Added USB device IDs for MacBookAir4,2 trackpad. Device constants were
copied from the MacBookAir3,2 constants. The 4,2 device specification is
reportedly unchanged from the 3,2 predecessor and seems to work well.

Signed-off-by: Joshua V Dillon <jvdillon@gmail.com>
Signed-off-by: Chase Douglas <chase.douglas@canonical.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

diff --git a/drivers/input/mouse/bcm5974.c b/drivers/input/mouse/bcm5974.c
index 3126983..48d9ec1 100644 (file)
--- a/drivers/input/mouse/bcm5974.c
+++ b/drivers/input/mouse/bcm5974.c
@@ -67,6 +67,10 @@
 #define USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI   0x0245
 #define USB_DEVICE_ID_APPLE_WELLSPRING5_ISO    0x0246
 #define USB_DEVICE_ID_APPLE_WELLSPRING5_JIS    0x0247
+/* MacbookAir4,2 (unibody, July 2011) */
+#define USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI   0x024c
+#define USB_DEVICE_ID_APPLE_WELLSPRING6_ISO    0x024d
+#define USB_DEVICE_ID_APPLE_WELLSPRING6_JIS    0x024e
 
 #define BCM5974_DEVICE(prod) {                                 \
        .match_flags = (USB_DEVICE_ID_MATCH_DEVICE |            \
@@ -104,6 +108,10 @@ static const struct usb_device_id bcm5974_table[] = {
        BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI),
        BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5_ISO),
        BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING5_JIS),
+       /* MacbookAir4,2 */
+       BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI),
+       BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING6_ISO),
+       BCM5974_DEVICE(USB_DEVICE_ID_APPLE_WELLSPRING6_JIS),
        /* Terminating entry */
        {}
 };
@@ -294,6 +302,18 @@ static const struct bcm5974_config bcm5974_config_table[] = {
                { DIM_X, DIM_X / SN_COORD, -4415, 5050 },
                { DIM_Y, DIM_Y / SN_COORD, -55, 6680 }
        },
+       {
+               USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI,
+               USB_DEVICE_ID_APPLE_WELLSPRING6_ISO,
+               USB_DEVICE_ID_APPLE_WELLSPRING6_JIS,
+               HAS_INTEGRATED_BUTTON,
+               0x84, sizeof(struct bt_data),
+               0x81, TYPE2, FINGER_TYPE2, FINGER_TYPE2 + SIZEOF_ALL_FINGERS,
+               { DIM_PRESSURE, DIM_PRESSURE / SN_PRESSURE, 0, 300 },
+               { DIM_WIDTH, DIM_WIDTH / SN_WIDTH, 0, 2048 },
+               { DIM_X, DIM_X / SN_COORD, -4620, 5140 },
+               { DIM_Y, DIM_Y / SN_COORD, -150, 6600 }
+       },
        {}
 };