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Diffstat (limited to 'include/linux/input/matrix_keypad.h')
-rw-r--r--include/linux/input/matrix_keypad.h13
1 files changed, 7 insertions, 6 deletions
diff --git a/include/linux/input/matrix_keypad.h b/include/linux/input/matrix_keypad.h
index 7964516c6954..15d5903af2dd 100644
--- a/include/linux/input/matrix_keypad.h
+++ b/include/linux/input/matrix_keypad.h
@@ -15,12 +15,13 @@
15#define KEY_COL(k) (((k) >> 16) & 0xff) 15#define KEY_COL(k) (((k) >> 16) & 0xff)
16#define KEY_VAL(k) ((k) & 0xffff) 16#define KEY_VAL(k) ((k) & 0xffff)
17 17
18#define MATRIX_SCAN_CODE(row, col, row_shift) (((row) << (row_shift)) + (col))
19
18/** 20/**
19 * struct matrix_keymap_data - keymap for matrix keyboards 21 * struct matrix_keymap_data - keymap for matrix keyboards
20 * @keymap: pointer to array of uint32 values encoded with KEY() macro 22 * @keymap: pointer to array of uint32 values encoded with KEY() macro
21 * representing keymap 23 * representing keymap
22 * @keymap_size: number of entries (initialized) in this keymap 24 * @keymap_size: number of entries (initialized) in this keymap
23 * @max_keymap_size: maximum size of keymap supported by the device
24 * 25 *
25 * This structure is supposed to be used by platform code to supply 26 * This structure is supposed to be used by platform code to supply
26 * keymaps to drivers that implement matrix-like keypads/keyboards. 27 * keymaps to drivers that implement matrix-like keypads/keyboards.
@@ -28,14 +29,13 @@
28struct matrix_keymap_data { 29struct matrix_keymap_data {
29 const uint32_t *keymap; 30 const uint32_t *keymap;
30 unsigned int keymap_size; 31 unsigned int keymap_size;
31 unsigned int max_keymap_size;
32}; 32};
33 33
34/** 34/**
35 * struct matrix_keypad_platform_data - platform-dependent keypad data 35 * struct matrix_keypad_platform_data - platform-dependent keypad data
36 * @keymap_data: pointer to &matrix_keymap_data 36 * @keymap_data: pointer to &matrix_keymap_data
37 * @row_gpios: array of gpio numbers reporesenting rows 37 * @row_gpios: pointer to array of gpio numbers representing rows
38 * @col_gpios: array of gpio numbers reporesenting colums 38 * @col_gpios: pointer to array of gpio numbers reporesenting colums
39 * @num_row_gpios: actual number of row gpios used by device 39 * @num_row_gpios: actual number of row gpios used by device
40 * @num_col_gpios: actual number of col gpios used by device 40 * @num_col_gpios: actual number of col gpios used by device
41 * @col_scan_delay_us: delay, measured in microseconds, that is 41 * @col_scan_delay_us: delay, measured in microseconds, that is
@@ -48,8 +48,9 @@ struct matrix_keymap_data {
48struct matrix_keypad_platform_data { 48struct matrix_keypad_platform_data {
49 const struct matrix_keymap_data *keymap_data; 49 const struct matrix_keymap_data *keymap_data;
50 50
51 unsigned int row_gpios[MATRIX_MAX_ROWS]; 51 const unsigned int *row_gpios;
52 unsigned int col_gpios[MATRIX_MAX_COLS]; 52 const unsigned int *col_gpios;
53
53 unsigned int num_row_gpios; 54 unsigned int num_row_gpios;
54 unsigned int num_col_gpios; 55 unsigned int num_col_gpios;
55 56