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usr
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src
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linux-headers-6.8.0-88
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include
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linux
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platform_data
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Filename :
keypad-pxa27x.h
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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 */