diff options
| author | Eric Nelson <eric.nelson@boundarydevices.com> | 2013-10-24 14:58:29 -0700 |
|---|---|---|
| committer | Troy Kisky <troy.kisky@boundarydevices.com> | 2014-04-24 18:59:36 -0700 |
| commit | fba974e6164e38b86fcbebf3afc1dcc42e9c5a9f (patch) | |
| tree | 8c51ee3b8bc951b64d33e43d6a1897b7bc792a32 | |
| parent | a3ea505a3d8860882ab84a854be519dc0607cb2e (diff) | |
ft5x06: Add screenres parameter, use it to publish ranges
Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
| -rw-r--r-- | drivers/input/touchscreen/ft5x06_ts.c | 44 |
1 files changed, 40 insertions, 4 deletions
diff --git a/drivers/input/touchscreen/ft5x06_ts.c b/drivers/input/touchscreen/ft5x06_ts.c index eb968ba1da40..fb73cb4d227b 100644 --- a/drivers/input/touchscreen/ft5x06_ts.c +++ b/drivers/input/touchscreen/ft5x06_ts.c @@ -36,6 +36,40 @@ #define USE_ABS_MT #endif +static int calibration[7] = { + 65536,0,0, + 0,65536,0, + 65536 +}; +module_param_array(calibration, int, NULL, S_IRUGO | S_IWUSR); + +static int screenres[2] = {1024, 600}; +module_param_array(screenres, int, NULL, S_IRUGO | S_IWUSR); + +static void translate(int *px, int *py) +{ + int x, y, x1, y1; + if (calibration[6]) { + x1 = *px; + y1 = *py; + + x = calibration[0] * x1 + + calibration[1] * y1 + + calibration[2]; + x /= calibration[6]; + if (x < 0) + x = 0; + y = calibration[3] * x1 + + calibration[4] * y1 + + calibration[5]; + y /= calibration[6]; + if (y < 0) + y = 0; + *px = x ; + *py = y ; + } +} + struct point { int x; int y; @@ -135,13 +169,15 @@ static inline int ts_register(struct ft5x06_ts *ts) __set_bit(BTN_TOUCH, idev->keybit); #ifdef USE_ABS_MT - input_set_abs_params(idev, ABS_MT_POSITION_X, 0, 1023, 0, 0); - input_set_abs_params(idev, ABS_MT_POSITION_Y, 0, 0x255, 0, 0); + input_set_abs_params(idev, ABS_MT_POSITION_X, 0, screenres[0]-1, 0, 0); + input_set_abs_params(idev, ABS_MT_POSITION_Y, 0, screenres[1]-1, 0, 0); + input_set_abs_params(idev, ABS_X, 0, screenres[0]-1, 0, 0); + input_set_abs_params(idev, ABS_Y, 0, screenres[1]-1, 0, 0); input_set_abs_params(idev, ABS_MT_TOUCH_MAJOR, 0, 1, 0, 0); #else __set_bit(EV_SYN, idev->evbit); - input_set_abs_params(idev, ABS_X, 0, 1023, 0, 0); - input_set_abs_params(idev, ABS_Y, 0, 0x255, 0, 0); + input_set_abs_params(idev, ABS_X, 0, screenres[0]-1, 0, 0); + input_set_abs_params(idev, ABS_Y, 0, screenres[1]-1, 0, 0); input_set_abs_params(idev, ABS_PRESSURE, 0, 1, 0, 0); #endif |