43 lines
1.4 KiB
C
43 lines
1.4 KiB
C
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/*
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* arch/arm/mach-ep93xx/include/mach/ep93xx_keypad.h
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*/
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#ifndef __ASM_ARCH_EP93XX_KEYPAD_H
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#define __ASM_ARCH_EP93XX_KEYPAD_H
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#define MAX_MATRIX_KEY_ROWS (8)
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#define MAX_MATRIX_KEY_COLS (8)
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/* flags for the ep93xx_keypad driver */
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#define EP93XX_KEYPAD_DISABLE_3_KEY (1<<0) /* disable 3-key reset */
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#define EP93XX_KEYPAD_DIAG_MODE (1<<1) /* diagnostic mode */
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#define EP93XX_KEYPAD_BACK_DRIVE (1<<2) /* back driving mode */
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#define EP93XX_KEYPAD_TEST_MODE (1<<3) /* scan only column 0 */
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#define EP93XX_KEYPAD_KDIV (1<<4) /* 1/4 clock or 1/16 clock */
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#define EP93XX_KEYPAD_AUTOREPEAT (1<<5) /* enable key autorepeat */
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/**
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* struct ep93xx_keypad_platform_data - platform specific device structure
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* @matrix_key_rows: number of rows in the keypad matrix
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* @matrix_key_cols: number of columns in the keypad matrix
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* @matrix_key_map: array of keycodes defining the keypad matrix
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* @matrix_key_map_size: ARRAY_SIZE(matrix_key_map)
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* @debounce: debounce start count; terminal count is 0xff
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* @prescale: row/column counter pre-scaler load value
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* @flags: see above
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*/
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struct ep93xx_keypad_platform_data {
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unsigned int matrix_key_rows;
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unsigned int matrix_key_cols;
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unsigned int *matrix_key_map;
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int matrix_key_map_size;
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unsigned int debounce;
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unsigned int prescale;
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unsigned int flags;
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};
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/* macro for creating the matrix_key_map table */
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#define KEY(row, col, val) (((row) << 28) | ((col) << 24) | (val))
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#endif /* __ASM_ARCH_EP93XX_KEYPAD_H */
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