keypad-pxa27x.h
2.12 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
#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
*
* pxa168 keypad platform specific parameter
*
* NOTE:
* clear_wakeup_event callback is a workaround required to clear the
* keypad interrupt. The keypad wake must be cleared in addition to
* reading the MI/DI bits in the KPC register.
*/
struct pxa27x_keypad_platform_data {
/* code map for the matrix keys */
const struct matrix_keymap_data *matrix_keymap_data;
unsigned int matrix_key_rows;
unsigned int matrix_key_cols;
/* direct keys */
int direct_key_num;
unsigned int direct_key_map[MAX_DIRECT_KEY_NUM];
/* the key output may be low active */
int direct_key_low_active;
/* give board a chance to choose the start direct key */
unsigned int direct_key_mask;
/* 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;
/* clear wakeup event requirement for pxa168 */
void (*clear_wakeup_event)(void);
};
extern void pxa_set_keypad_info(struct pxa27x_keypad_platform_data *info);
#endif /* __ASM_ARCH_PXA27x_KEYPAD_H */