Commit 86579a4c authored by Michael Roth's avatar Michael Roth Committed by Dmitry Torokhov
Browse files

Input: ads7846 - support swapping x and y axes 



Signed-off-by: default avatarMichael Roth <mroth@nessie.de>
Signed-off-by: default avatarDmitry Torokhov <dtor@mail.ru>
parent 225c9886

drivers/input/touchscreen/ads7846.c

+7 −0
Original line number Diff line number Diff line
@@ -97,6 +97,8 @@ struct ads7846 { 
	u16			x_plate_ohms;

	u16			pressure_max;



	bool			swap_xy;



	struct ads7846_packet	*packet;



	struct spi_transfer	xfer[18];
@@ -599,6 +601,10 @@ static void ads7846_rx(void *ads) 
			dev_dbg(&ts->spi->dev, "DOWN\n");

#endif

		}



		if (ts->swap_xy)

			swap(x, y);



		input_report_abs(input, ABS_X, x);

		input_report_abs(input, ABS_Y, y);

		input_report_abs(input, ABS_PRESSURE, Rt);
@@ -917,6 +923,7 @@ static int __devinit ads7846_probe(struct spi_device *spi) 
	ts->spi = spi;

	ts->input = input_dev;

	ts->vref_mv = pdata->vref_mv;

	ts->swap_xy = pdata->swap_xy;



	hrtimer_init(&ts->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);

	ts->timer.function = ads7846_timer;

include/linux/spi/ads7846.h

+1 −0
Original line number Diff line number Diff line
@@ -17,6 +17,7 @@ struct ads7846_platform_data { 
	u16	vref_mv;		/* external vref value, milliVolts */

	bool	keep_vref_on;		/* set to keep vref on for differential

					 * measurements as well */

	bool	swap_xy;		/* swap x and y axes */



	/* Settling time of the analog signals; a function of Vcc and the

	 * capacitance on the X/Y drivers.  If set to non-zero, two samples