diff options
Diffstat (limited to 'board/goldelico/gta04/tsc2007.c')
| -rw-r--r-- | board/goldelico/gta04/tsc2007.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/board/goldelico/gta04/tsc2007.c b/board/goldelico/gta04/tsc2007.c index 430ecbc..b2a0cfa 100644 --- a/board/goldelico/gta04/tsc2007.c +++ b/board/goldelico/gta04/tsc2007.c @@ -155,3 +155,27 @@ void print_adc(void) read_adc(7)); } +int pendown(int *x, int *y) +{ +#if 1 + int z; + int xx; + int yy; + xx=read_adc(0); + yy=read_adc(1); + z=read_adc(2); // read Z + if(z < 0) + return 0; // read error +#if 0 + printf("z=%04d x:%04d y:%04d\n", z, xx, yy); +#endif + if(x) *x=xx; + if(y) *y=yy; + udelay(10000); // reduce I2C traffic and debounce... + return z > 200; // was pressed +#else + // must be in PENIRQ mode... + return (status_get_buttons() & (1 << 4)) == 0; +#endif +} + |