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Input: atmel_mxt_ts - convert to MT protocol B 

Atmel touchscreen chips can use MT protocol B because they can assign
unique id to ABS_MT_TRACKING_ID from finger id provided by hardware.

Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Reviewed-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Joonyoung Shim 2011-04-12 23:18:59 -07:00 committed by Dmitry Torokhov
parent 08960a070a
commit 8b86c1c28f
1 changed files with 15 additions and 12 deletions
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27
drivers/input/touchscreen/atmel_mxt_ts.c
View File

@ -17,7 +17,7 @@
#include <linux/firmware.h>
#include <linux/i2c.h>
#include <linux/i2c/atmel_mxt_ts.h>
#include <linux/input.h>
#include <linux/input/mt.h>
#include <linux/interrupt.h>
#include <linux/slab.h>
@ -504,19 +504,21 @@ static void mxt_input_report(struct mxt_data *data, int single_id)
if (!finger[id].status)
continue;
input_report_abs(input_dev, ABS_MT_TOUCH_MAJOR,
finger[id].status != MXT_RELEASE ?
finger[id].area : 0);
input_report_abs(input_dev, ABS_MT_POSITION_X,
finger[id].x);
input_report_abs(input_dev, ABS_MT_POSITION_Y,
finger[id].y);
input_mt_sync(input_dev);
input_mt_slot(input_dev, id);
input_mt_report_slot_state(input_dev, MT_TOOL_FINGER,
finger[id].status != MXT_RELEASE);
if (finger[id].status == MXT_RELEASE)
finger[id].status = 0;
else
if (finger[id].status != MXT_RELEASE) {
finger_num++;
input_report_abs(input_dev, ABS_MT_TOUCH_MAJOR,
finger[id].area);
input_report_abs(input_dev, ABS_MT_POSITION_X,
finger[id].x);
input_report_abs(input_dev, ABS_MT_POSITION_Y,
finger[id].y);
} else {
finger[id].status = 0;
}
}
input_report_key(input_dev, BTN_TOUCH, finger_num > 0);
@ -1094,6 +1096,7 @@ static int __devinit mxt_probe(struct i2c_client *client,
0, data->max_y, 0, 0);
/* For multi touch */
input_mt_init_slots(input_dev, MXT_MAX_FINGER);
input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR,
0, MXT_MAX_AREA, 0, 0);
input_set_abs_params(input_dev, ABS_MT_POSITION_X,