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| author | David S. Miller <davem@davemloft.net> | 2009-04-13 14:41:05 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-04-13 14:41:05 -0700 |
| commit | 83400207a07584539366f6859362db6872809a12 (patch) | |
| tree | fad187f8b3bebf1b387ec42ef8143e6f4e49a256 /include/linux/spi/ad7879.h | |
| parent | 0d489ffb76de0fe804cf06a9d4d11fa7342d74b9 (diff) | |
| parent | 80a04d3f2f94fb68b5df05e3ac6697130bc3467a (diff) | |
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Conflicts:
MAINTAINERS
Diffstat (limited to 'include/linux/spi/ad7879.h')
| -rw-r--r-- | include/linux/spi/ad7879.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/include/linux/spi/ad7879.h b/include/linux/spi/ad7879.h new file mode 100644 index 00000000000..4231104c9af --- /dev/null +++ b/include/linux/spi/ad7879.h @@ -0,0 +1,35 @@ +/* linux/spi/ad7879.h */ + +/* Touchscreen characteristics vary between boards and models. The + * platform_data for the device's "struct device" holds this information. + * + * It's OK if the min/max values are zero. + */ +struct ad7879_platform_data { + u16 model; /* 7879 */ + u16 x_plate_ohms; + u16 x_min, x_max; + u16 y_min, y_max; + u16 pressure_min, pressure_max; + + /* [0..255] 0=OFF Starts at 1=550us and goes + * all the way to 9.440ms in steps of 35us. + */ + u8 pen_down_acc_interval; + /* [0..15] Starts at 0=128us and goes all the + * way to 4.096ms in steps of 128us. + */ + u8 first_conversion_delay; + /* [0..3] 0 = 2us, 1 = 4us, 2 = 8us, 3 = 16us */ + u8 acquisition_time; + /* [0..3] Average X middle samples 0 = 2, 1 = 4, 2 = 8, 3 = 16 */ + u8 averaging; + /* [0..3] Perform X measurements 0 = OFF, + * 1 = 4, 2 = 8, 3 = 16 (median > averaging) + */ + u8 median; + /* 1 = AUX/VBAT/GPIO set to GPIO Output */ + u8 gpio_output; + /* Initial GPIO pin state (valid if gpio_output = 1) */ + u8 gpio_default; +}; |