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- /* SPDX-License-Identifier: GPL-2.0 */
- #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 */
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