On Sun, Mar 27, 2011 at 05:46:32PM +0800, wanlong.gao@xxxxxxxxx wrote:
> From: Wanlong Gao <wanlong.gao@xxxxxxxxx>
>
> Many touchscreens support touch-keypad .
> Open the definition of the TOUCHSCREEN_TSC2007_WITH_KEYPAD, you can
> open the support of the touchscreen's keypad .
> We can add the support of the touchscreen keypad in the driver.
> In this patch , add the ts_key_pos array to determine the position
> of the key's X. And the ts_key_sensitivity can use to detemine the
> key's sensitivity. You can modify the ts_key_pos array for you own
> touchscreen keys . And modify the ts_key_sensitivity for you own
> key's sensitivity .
> If you want to modify the ts_key_map, change the position of the
> keys ,too.
>
> Signed-off-by: Wanlong Gao <wanlong.gao@xxxxxxxxx>
Reviewed-by: Harry Wei <harryxiyou@xxxxxxxxx>
> ---
> drivers/input/touchscreen/tsc2007.c | 48 +++++++++++++++++++++++++++++++++++
> 1 files changed, 48 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/input/touchscreen/tsc2007.c b/drivers/input/touchscreen/tsc2007.c
> index 80467f2..8f70fca 100644
> --- a/drivers/input/touchscreen/tsc2007.c
> +++ b/drivers/input/touchscreen/tsc2007.c
> @@ -83,6 +83,51 @@ struct tsc2007 {
> void (*clear_penirq)(void);
> };
>
> +/*
> +#define TOUCHSCREEN_TSC2007_WITH_KEYPAD
> +*/
> +#ifndef TOUCHSCREEN_TSC2007_WITH_KEYPAD
> +static void ts_key_set_capacity(struct input_dev *input) {};
> +static void ts_key_up(struct input_dev *input) {};
> +static void ts_key_event(struct input_dev *input, u16 x, u16 y) {};
> +#else
> +static int ts_key_pos[] = {700, 1650, 2550, 3500};
> +static int ts_key_map[] = {KEY_MENU, KEY_HOME, KEY_BACK, KEY_SEARCH};
> +/* you can modify this value to change the touch_key's sensitivity */
> +static int ts_key_sensitivity = 50;
> +
> +static void ts_key_set_capacity(struct input_dev *input)
> +{
> + int i;
> + for (i = 0; i < ARRAY_SIZE(ts_key_map); i++) {
> + input_set_capability(input, EV_KEY, ts_key_map[i]);
> + }
You only have one statement after 'for-recycle', so it should program
like following.
for (i = 0; i < ARRAY_SIZE(ts_key_map); i++)
input_set_capability(input, EV_KEY, ts_key_map[i]);
> +}
> +
> +/* you must have an input_sync() followed this func . */
> +static void ts_key_up(struct input_dev *input)
> +{
> + int i;
> + for (i = 0; i < ARRAY_SIZE(ts_key_map); i++) {
> + input_report_key(input, ts_key_map[i], 0);
> + }
for (i = 0; i < ARRAY_SIZE(ts_key_map); i++)
input_report_key(input, ts_key_map[i], 0);
> +}
> +
> +static void ts_key_event(struct input_dev *input, u16 x, u16 y)
> +{
> + int i;
> + if (y > MAX_12BIT) {
> + for (i = 0; i < ARRAY_SIZE(ts_key_pos); i++) {
> + if ((x > (ts_key_pos[i] - ts_key_sensitivity)) &&
> + (x < (ts_key_pos[i] + ts_key_sensitivity))) {
> + input_report_key(input, ts_key_map[i], 1);
> + input_sync(input);
> + }
> + }
> + }
> +}
> +#endif
> +
> static inline int tsc2007_xfer(struct tsc2007 *tsc, u8 cmd)
> {
> s32 data;
> @@ -149,6 +194,7 @@ static void tsc2007_send_up_event(struct tsc2007 *tsc)
>
> input_report_key(input, BTN_TOUCH, 0);
> input_report_abs(input, ABS_PRESSURE, 0);
> + ts_key_up(input);
> input_sync(input);
> }
>
> @@ -201,6 +247,7 @@ static void tsc2007_work(struct work_struct *work)
> if (!ts->pendown) {
> dev_dbg(&ts->client->dev, "DOWN\n");
>
> + ts_key_event(input, tc.x, tc.y);
> input_report_key(input, BTN_TOUCH, 1);
> ts->pendown = true;
> }
> @@ -308,6 +355,7 @@ static int __devinit tsc2007_probe(struct i2c_client *client,
> input_set_abs_params(input_dev, ABS_X, 0, MAX_12BIT, 0, 0);
> input_set_abs_params(input_dev, ABS_Y, 0, MAX_12BIT, 0, 0);
> input_set_abs_params(input_dev, ABS_PRESSURE, 0, MAX_12BIT, 0, 0);
> + ts_key_set_capacity(input_dev);
>
> if (pdata->init_platform_hw)
> pdata->init_platform_hw();
> --
> 1.7.3
>
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