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1 | #ifndef __ASM_ARCH_PXA27x_KEYPAD_H |
| 2 | #define __ASM_ARCH_PXA27x_KEYPAD_H | |
| 3 | ||
| 4 | #include <linux/input.h> | |
| 52ec7752 | 5 | #include <linux/input/matrix_keypad.h> |
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6 | |
| 7 | #define MAX_MATRIX_KEY_ROWS (8) | |
| 8 | #define MAX_MATRIX_KEY_COLS (8) | |
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9 | #define MATRIX_ROW_SHIFT (3) |
| 10 | #define MAX_DIRECT_KEY_NUM (8) | |
| 5a90e5bc | 11 | |
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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) | |
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25 | * |
| 26 | * 4. matrix key and direct key will use the same debounce_interval by | |
| 27 | * default, which should be sufficient in most cases | |
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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. | |
| 62059d9e | 35 | */ |
| 0e5f11aa | 36 | struct pxa27x_keypad_platform_data { |
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37 | |
| 38 | /* code map for the matrix keys */ | |
| 39 | unsigned int matrix_key_rows; | |
| 40 | unsigned int matrix_key_cols; | |
| 41 | unsigned int *matrix_key_map; | |
| 42 | int matrix_key_map_size; | |
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43 | |
| 44 | /* direct keys */ | |
| 45 | int direct_key_num; | |
| bd96f378 | 46 | unsigned int direct_key_map[MAX_DIRECT_KEY_NUM]; |
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47 | |
| 48 | /* rotary encoders 0 */ | |
| 49 | int enable_rotary0; | |
| 50 | int rotary0_rel_code; | |
| 51 | int rotary0_up_key; | |
| 52 | int rotary0_down_key; | |
| 53 | ||
| 54 | /* rotary encoders 1 */ | |
| 55 | int enable_rotary1; | |
| 56 | int rotary1_rel_code; | |
| 57 | int rotary1_up_key; | |
| 58 | int rotary1_down_key; | |
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59 | |
| 60 | /* key debounce interval */ | |
| 61 | unsigned int debounce_interval; | |
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62 | |
| 63 | /* clear wakeup event requirement for pxa168 */ | |
| 64 | void (*clear_wakeup_event)(void); | |
| 5a90e5bc | 65 | }; |
| 1814db69 | 66 | |
| 37320980 | 67 | extern void pxa_set_keypad_info(struct pxa27x_keypad_platform_data *info); |
| 68 | ||
| 1814db69 | 69 | #endif /* __ASM_ARCH_PXA27x_KEYPAD_H */ |