1#ifndef __ASM_ARCH_PXA27x_KEYPAD_H 2#define __ASM_ARCH_PXA27x_KEYPAD_H 3 4#include <linux/input.h> 5#include <linux/input/matrix_keypad.h> 6 7#define MAX_MATRIX_KEY_ROWS (8) 8#define MAX_MATRIX_KEY_COLS (8) 9#define MATRIX_ROW_SHIFT (3) 10#define MAX_DIRECT_KEY_NUM (8) 11 12/* pxa3xx keypad platform specific parameters 13 * 14 * NOTE: 15 * 1. direct_key_num indicates the number of keys in the direct keypad 16 * _plus_ the number of rotary-encoder sensor inputs, this can be 17 * left as 0 if only rotary encoders are enabled, the driver will 18 * automatically calculate this 19 * 20 * 2. direct_key_map is the key code map for the direct keys, if rotary 21 * encoder(s) are enabled, direct key 0/1(2/3) will be ignored 22 * 23 * 3. rotary can be either interpreted as a relative input event (e.g. 24 * REL_WHEEL/REL_HWHEEL) or specific keys (e.g. UP/DOWN/LEFT/RIGHT) 25 * 26 * 4. matrix key and direct key will use the same debounce_interval by 27 * default, which should be sufficient in most cases 28 * 29 * pxa168 keypad platform specific parameter 30 * 31 * NOTE: 32 * clear_wakeup_event callback is a workaround required to clear the 33 * keypad interrupt. The keypad wake must be cleared in addition to 34 * reading the MI/DI bits in the KPC register. 35 */ 36struct pxa27x_keypad_platform_data { 37 38 /* code map for the matrix keys */ 39 const struct matrix_keymap_data *matrix_keymap_data; 40 unsigned int matrix_key_rows; 41 unsigned int matrix_key_cols; 42 43 /* direct keys */ 44 int direct_key_num; 45 unsigned int direct_key_map[MAX_DIRECT_KEY_NUM]; 46 /* the key output may be low active */ 47 int direct_key_low_active; 48 /* give board a chance to choose the start direct key */ 49 unsigned int direct_key_mask; 50 51 /* rotary encoders 0 */ 52 int enable_rotary0; 53 int rotary0_rel_code; 54 int rotary0_up_key; 55 int rotary0_down_key; 56 57 /* rotary encoders 1 */ 58 int enable_rotary1; 59 int rotary1_rel_code; 60 int rotary1_up_key; 61 int rotary1_down_key; 62 63 /* key debounce interval */ 64 unsigned int debounce_interval; 65 66 /* clear wakeup event requirement for pxa168 */ 67 void (*clear_wakeup_event)(void); 68}; 69 70extern void pxa_set_keypad_info(struct pxa27x_keypad_platform_data *info); 71 72#endif /* __ASM_ARCH_PXA27x_KEYPAD_H */ 73