diff options
Diffstat (limited to 'arch/arm/plat-pxa')
| -rw-r--r-- | arch/arm/plat-pxa/include/plat/pxa27x_keypad.h | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/arch/arm/plat-pxa/include/plat/pxa27x_keypad.h b/arch/arm/plat-pxa/include/plat/pxa27x_keypad.h new file mode 100644 index 000000000000..7b4eadc6df3a --- /dev/null +++ b/arch/arm/plat-pxa/include/plat/pxa27x_keypad.h @@ -0,0 +1,59 @@ +#ifndef __ASM_ARCH_PXA27x_KEYPAD_H +#define __ASM_ARCH_PXA27x_KEYPAD_H + +#include <linux/input.h> +#include <linux/input/matrix_keypad.h> + +#define MAX_MATRIX_KEY_ROWS (8) +#define MAX_MATRIX_KEY_COLS (8) +#define MATRIX_ROW_SHIFT (3) +#define MAX_DIRECT_KEY_NUM (8) + +/* pxa3xx keypad platform specific parameters + * + * NOTE: + * 1. direct_key_num indicates the number of keys in the direct keypad + * _plus_ the number of rotary-encoder sensor inputs, this can be + * left as 0 if only rotary encoders are enabled, the driver will + * automatically calculate this + * + * 2. direct_key_map is the key code map for the direct keys, if rotary + * encoder(s) are enabled, direct key 0/1(2/3) will be ignored + * + * 3. rotary can be either interpreted as a relative input event (e.g. + * REL_WHEEL/REL_HWHEEL) or specific keys (e.g. UP/DOWN/LEFT/RIGHT) + * + * 4. matrix key and direct key will use the same debounce_interval by + * default, which should be sufficient in most cases + */ +struct pxa27x_keypad_platform_data { + + /* code map for the matrix keys */ + unsigned int matrix_key_rows; + unsigned int matrix_key_cols; + unsigned int *matrix_key_map; + int matrix_key_map_size; + + /* direct keys */ + int direct_key_num; + unsigned int direct_key_map[MAX_DIRECT_KEY_NUM]; + + /* rotary encoders 0 */ + int enable_rotary0; + int rotary0_rel_code; + int rotary0_up_key; + int rotary0_down_key; + + /* rotary encoders 1 */ + int enable_rotary1; + int rotary1_rel_code; + int rotary1_up_key; + int rotary1_down_key; + + /* key debounce interval */ + unsigned int debounce_interval; +}; + +extern void pxa_set_keypad_info(struct pxa27x_keypad_platform_data *info); + +#endif /* __ASM_ARCH_PXA27x_KEYPAD_H */ |