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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) | |
bd96f378 DT |
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 */ | |
0a085a94 | 39 | const struct matrix_keymap_data *matrix_keymap_data; |
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40 | unsigned int matrix_key_rows; |
41 | unsigned int matrix_key_cols; | |
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42 | |
43 | /* direct keys */ | |
44 | int direct_key_num; | |
bd96f378 | 45 | unsigned int direct_key_map[MAX_DIRECT_KEY_NUM]; |
ee1d8040 CX |
46 | /* the key output may be low active */ |
47 | int direct_key_low_active; | |
fb054bf2 CX |
48 | /* give board a chance to choose the start direct key */ |
49 | unsigned int direct_key_mask; | |
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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; | |
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62 | |
63 | /* key debounce interval */ | |
64 | unsigned int debounce_interval; | |
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65 | |
66 | /* clear wakeup event requirement for pxa168 */ | |
67 | void (*clear_wakeup_event)(void); | |
5a90e5bc | 68 | }; |
1814db69 | 69 | |
37320980 | 70 | extern void pxa_set_keypad_info(struct pxa27x_keypad_platform_data *info); |
71 | ||
1814db69 | 72 | #endif /* __ASM_ARCH_PXA27x_KEYPAD_H */ |