LXR linux/include/linux/platform

   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