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Currently, only one debounce_interval is introduced for both direct and matrix keys. This is true in most cases, although the keypad controller supports different debounce for direct/matrix keys. Some platforms do require this to be tuned, instead of the default reset value of 100ms. Rotary encoder will always use zero debounce time for now to achieve certain sensitivity. Signed-off-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
57 lines
1.5 KiB
C
57 lines
1.5 KiB
C
#ifndef __ASM_ARCH_PXA27x_KEYPAD_H
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#define __ASM_ARCH_PXA27x_KEYPAD_H
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#include <linux/input.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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/* pxa3xx keypad platform specific parameters
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*
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* NOTE:
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* 1. direct_key_num indicates the number of keys in the direct keypad
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* _plus_ the number of rotary-encoder sensor inputs, this can be
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* left as 0 if only rotary encoders are enabled, the driver will
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* automatically calculate this
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*
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* 2. direct_key_map is the key code map for the direct keys, if rotary
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* encoder(s) are enabled, direct key 0/1(2/3) will be ignored
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*
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* 3. rotary can be either interpreted as a relative input event (e.g.
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* REL_WHEEL/REL_HWHEEL) or specific keys (e.g. UP/DOWN/LEFT/RIGHT)
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*
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* 4. matrix key and direct key will use the same debounce_interval by
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* default, which should be sufficient in most cases
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*/
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struct pxa27x_keypad_platform_data {
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/* code map for the matrix keys */
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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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/* direct keys */
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int direct_key_num;
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unsigned int direct_key_map[8];
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/* rotary encoders 0 */
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int enable_rotary0;
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int rotary0_rel_code;
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int rotary0_up_key;
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int rotary0_down_key;
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/* rotary encoders 1 */
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int enable_rotary1;
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int rotary1_rel_code;
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int rotary1_up_key;
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int rotary1_down_key;
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/* key debounce interval */
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unsigned int debounce_interval;
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};
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#define KEY(row, col, val) (((row) << 28) | ((col) << 24) | (val))
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#endif /* __ASM_ARCH_PXA27x_KEYPAD_H */
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