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authorJason Gerecke <killertofu@gmail.com>2014-05-15 02:14:29 +0200
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2014-05-15 03:47:09 +0200
commitd51ddb2bf64433195cd0fc21d894d703c5d5ecf9 (patch)
treecd9a53c280cec3e57f3721151c0f0da6c598aed7 /drivers/input/tablet/wacom_sys.c
parentInput: wacom - use unaligned access where necessary (diff)
downloadlinux-d51ddb2bf64433195cd0fc21d894d703c5d5ecf9.tar.xz
linux-d51ddb2bf64433195cd0fc21d894d703c5d5ecf9.zip
Input: wacom - add support for three new ISDv4 sensors
This patch adds support for the 0x4004, 0x5000, and 0x5002 sensors found on what should be the Motion R12, Fujitsu Q704, and Fujitsu T904. These tablets use a new report ID (3) for their touch packets and a slightly different HID descriptor format, but are otherwise largely identical in protocol to the "MTTPC" tablets. Note: * The R12 uses its 0x4004 sensor for touch input only. A pen interface is not present in its HID descriptor, though its possible a 0x4004 may be used for pen input by other tablet PCs in the future. * The 0x5002 sensor appears to use a new report ID (8) for its pen packets. The other sensors continue to use the traditional report ID (2). Signed-off-by: Jason Gerecke <killertofu@gmail.com> Reviewed-by: Ping Cheng <pingc@wacom.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input/tablet/wacom_sys.c')
-rw-r--r--drivers/input/tablet/wacom_sys.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
index 611fc3905d00..2c613cd41dd6 100644
--- a/drivers/input/tablet/wacom_sys.c
+++ b/drivers/input/tablet/wacom_sys.c
@@ -349,6 +349,7 @@ static int wacom_parse_hid(struct usb_interface *intf,
break;
case MTTPC:
+ case MTTPC_B:
features->pktlen = WACOM_PKGLEN_MTTPC;
break;
@@ -380,6 +381,16 @@ static int wacom_parse_hid(struct usb_interface *intf,
i += 12;
break;
+ case MTTPC_B:
+ features->x_max =
+ get_unaligned_le16(&report[i + 3]);
+ features->x_phy =
+ get_unaligned_le16(&report[i + 6]);
+ features->unit = report[i - 5];
+ features->unitExpo = report[i - 3];
+ i += 9;
+ break;
+
default:
features->x_max =
get_unaligned_le16(&report[i + 3]);
@@ -430,6 +441,14 @@ static int wacom_parse_hid(struct usb_interface *intf,
i += 12;
break;
+ case MTTPC_B:
+ features->y_max =
+ get_unaligned_le16(&report[i + 3]);
+ features->y_phy =
+ get_unaligned_le16(&report[i + 6]);
+ i += 9;
+ break;
+
default:
features->y_max =
features->x_max;