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Input: ads7846 - support swapping x and y axes

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Signed-off-by: Michael Roth <mroth@nessie.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Michael Roth 2009-05-18 16:04:44 -07:00 • committed by Dmitry Torokhov
parent 225c9886b9
commit 86579a4ccc
2 changed files with 8 additions and 0 deletions
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7
drivers/input/touchscreen/ads7846.c
View file

@ -97,6 +97,8 @@ struct ads7846 {
u16 x_plate_ohms; u16 x_plate_ohms;
u16 pressure_max; u16 pressure_max;
bool swap_xy;
struct ads7846_packet *packet; struct ads7846_packet *packet;
struct spi_transfer xfer[18]; struct spi_transfer xfer[18];
@ -599,6 +601,10 @@ static void ads7846_rx(void *ads)
dev_dbg(&ts->spi->dev, "DOWN\n"); dev_dbg(&ts->spi->dev, "DOWN\n");
#endif #endif
} }
if (ts->swap_xy)
swap(x, y);
input_report_abs(input, ABS_X, x); input_report_abs(input, ABS_X, x);
input_report_abs(input, ABS_Y, y); input_report_abs(input, ABS_Y, y);
input_report_abs(input, ABS_PRESSURE, Rt); input_report_abs(input, ABS_PRESSURE, Rt);
@ -917,6 +923,7 @@ static int __devinit ads7846_probe(struct spi_device *spi)
ts->spi = spi; ts->spi = spi;
ts->input = input_dev; ts->input = input_dev;
ts->vref_mv = pdata->vref_mv; ts->vref_mv = pdata->vref_mv;
ts->swap_xy = pdata->swap_xy;
hrtimer_init(&ts->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); hrtimer_init(&ts->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
ts->timer.function = ads7846_timer; ts->timer.function = ads7846_timer;

1
include/linux/spi/ads7846.h
View file

@ -17,6 +17,7 @@ struct ads7846_platform_data {
u16 vref_mv; /* external vref value, milliVolts */ u16 vref_mv; /* external vref value, milliVolts */
bool keep_vref_on; /* set to keep vref on for differential bool keep_vref_on; /* set to keep vref on for differential
* measurements as well */ * measurements as well */
bool swap_xy; /* swap x and y axes */
/* Settling time of the analog signals; a function of Vcc and the /* 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 * capacitance on the X/Y drivers. If set to non-zero, two samples