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HID: wacom: Add pad buttons reporting on Intuos4 WL 

This patch adds reporting of 1 wheel button and 8 strip buttons for Intuos4 WL.
The buttons are reported as BTN_0 to BTN_9. The change of type butstate variable
is required as the old type 'char' couldn't store state of 9 buttons. The change
is not affecting Graphire tablet as it only uses first 2 bits of 'butstate'.

Signed-off-by: Przemo Firszt <przemo@firszt.eu>
Acked-by：Ping Cheng <pinglinux@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Przemo Firszt 2012-02-28 17:19:05 +00:00 committed by Jiri Kosina
parent e0829e9c1e
commit 6245bde29d
1 changed files with 35 additions and 1 deletions
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36
drivers/hid/hid-wacom.c
View File

@ -31,9 +31,11 @@
#include "hid-ids.h"
#define PAD_DEVICE_ID 0x0F
struct wacom_data {
__u16 tool;
unsigned char butstate;
__u16 butstate;
__u8 features;
__u32 id;
__u32 serial;
@ -316,6 +318,30 @@ static int wacom_gr_parse_report(struct hid_device *hdev,
return 1;
}
static void wacom_i4_parse_button_report(struct wacom_data *wdata,
struct input_dev *input, unsigned char *data)
{
__u16 new_butstate;
new_butstate = (data[3] << 1) | (data[2] & 0x01);
if (new_butstate != wdata->butstate) {
wdata->butstate = new_butstate;
input_report_key(input, BTN_0, new_butstate & 0x001);
input_report_key(input, BTN_1, new_butstate & 0x002);
input_report_key(input, BTN_2, new_butstate & 0x004);
input_report_key(input, BTN_3, new_butstate & 0x008);
input_report_key(input, BTN_4, new_butstate & 0x010);
input_report_key(input, BTN_5, new_butstate & 0x020);
input_report_key(input, BTN_6, new_butstate & 0x040);
input_report_key(input, BTN_7, new_butstate & 0x080);
input_report_key(input, BTN_8, new_butstate & 0x100);
input_report_key(input, BTN_TOOL_FINGER, 1);
input_report_abs(input, ABS_MISC, PAD_DEVICE_ID);
input_event(input, EV_MSC, MSC_SERIAL, 0xffffffff);
input_sync(input);
}
}
static void wacom_i4_parse_pen_report(struct wacom_data *wdata,
struct input_dev *input, unsigned char *data)
{
@ -389,6 +415,7 @@ static void wacom_i4_parse_report(struct hid_device *hdev,
wdata->features = data[2];
break;
case 0x0C: /* Button report */
wacom_i4_parse_button_report(wdata, input, data);
break;
default:
hid_err(hdev, "Unknown report: %d,%d\n", data[0], data[1]);
@ -484,6 +511,13 @@ static int wacom_input_mapped(struct hid_device *hdev, struct hid_input *hi,
break;
case USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH:
__set_bit(ABS_MISC, input->absbit);
__set_bit(BTN_2, input->keybit);
__set_bit(BTN_3, input->keybit);
__set_bit(BTN_4, input->keybit);
__set_bit(BTN_5, input->keybit);
__set_bit(BTN_6, input->keybit);
__set_bit(BTN_7, input->keybit);
__set_bit(BTN_8, input->keybit);
input_set_abs_params(input, ABS_X, 0, 40640, 4, 0);
input_set_abs_params(input, ABS_Y, 0, 25400, 4, 0);
input_set_abs_params(input, ABS_PRESSURE, 0, 2047, 0, 0);