arch/arm/mach-ux500/board-mop500-keypads.c

   1 /*
   2  * Copyright (C) ST-Ericsson SA 2010
   3  *
   4  * License Terms: GNU General Public License v2
   5  *
   6  * Keypad layouts for various boards
   7  */
   8
   9 #include <linux/i2c.h>
  10 #include <linux/gpio.h>
  11 #include <linux/interrupt.h>
  12 #include <linux/platform_device.h>
  13 #include <linux/mfd/stmpe.h>
  14 #include <linux/mfd/tc3589x.h>
  15 #include <linux/input/matrix_keypad.h>
  16
  17 #include <plat/pincfg.h>
  18 #include <plat/ske.h>
  19
  20 #include <mach/devices.h>
  21 #include <mach/hardware.h>
  22
  23 #include "devices-db8500.h"
  24 #include "board-mop500.h"
  25
  26 /* STMPE/SKE keypad use this key layout */
  27 static const unsigned int mop500_keymap[] = {
  28         KEY(2, 5, KEY_END),
  29         KEY(4, 1, KEY_POWER),
  30         KEY(3, 5, KEY_VOLUMEDOWN),
  31         KEY(1, 3, KEY_3),
  32         KEY(5, 2, KEY_RIGHT),
  33         KEY(5, 0, KEY_9),
  34
  35         KEY(0, 5, KEY_MENU),
  36         KEY(7, 6, KEY_ENTER),
  37         KEY(4, 5, KEY_0),
  38         KEY(6, 7, KEY_2),
  39         KEY(3, 4, KEY_UP),
  40         KEY(3, 3, KEY_DOWN),
  41
  42         KEY(6, 4, KEY_SEND),
  43         KEY(6, 2, KEY_BACK),
  44         KEY(4, 2, KEY_VOLUMEUP),
  45         KEY(5, 5, KEY_1),
  46         KEY(4, 3, KEY_LEFT),
  47         KEY(3, 2, KEY_7),
  48 };
  49
  50 static const struct matrix_keymap_data mop500_keymap_data = {
  51         .keymap         = mop500_keymap,
  52         .keymap_size    = ARRAY_SIZE(mop500_keymap),
  53 };
  54
  55 /*
  56  * Nomadik SKE keypad
  57  */
  58 #define ROW_PIN_I0      164
  59 #define ROW_PIN_I1      163
  60 #define ROW_PIN_I2      162
  61 #define ROW_PIN_I3      161
  62 #define ROW_PIN_I4      156
  63 #define ROW_PIN_I5      155
  64 #define ROW_PIN_I6      154
  65 #define ROW_PIN_I7      153
  66 #define COL_PIN_O0      168
  67 #define COL_PIN_O1      167
  68 #define COL_PIN_O2      166
  69 #define COL_PIN_O3      165
  70 #define COL_PIN_O4      160
  71 #define COL_PIN_O5      159
  72 #define COL_PIN_O6      158
  73 #define COL_PIN_O7      157
  74
  75 #define SKE_KPD_MAX_ROWS        8
  76 #define SKE_KPD_MAX_COLS        8
  77
  78 static int ske_kp_rows[] = {
  79         ROW_PIN_I0, ROW_PIN_I1, ROW_PIN_I2, ROW_PIN_I3,
  80         ROW_PIN_I4, ROW_PIN_I5, ROW_PIN_I6, ROW_PIN_I7,
  81 };
  82
  83 /*
  84  * ske_set_gpio_row: request and set gpio rows
  85  */
  86 static int ske_set_gpio_row(int gpio)
  87 {
  88         int ret;
  89
  90         ret = gpio_request(gpio, "ske-kp");
  91         if (ret < 0) {
  92                 pr_err("ske_set_gpio_row: gpio request failed\n");
  93                 return ret;
  94         }
  95
  96         ret = gpio_direction_output(gpio, 1);
  97         if (ret < 0) {
  98                 pr_err("ske_set_gpio_row: gpio direction failed\n");
  99                 gpio_free(gpio);
 100         }
 101
 102         return ret;
 103 }
 104
 105 /*
 106  * ske_kp_init - enable the gpio configuration
 107  */
 108 static int ske_kp_init(void)
 109 {
 110         int ret, i;
 111
 112         for (i = 0; i < SKE_KPD_MAX_ROWS; i++) {
 113                 ret = ske_set_gpio_row(ske_kp_rows[i]);
 114                 if (ret < 0) {
 115                         pr_err("ske_kp_init: failed init\n");
 116                         return ret;
 117                 }
 118         }
 119
 120         return 0;
 121 }
 122
 123 static struct ske_keypad_platform_data ske_keypad_board = {
 124         .init           = ske_kp_init,
 125         .keymap_data    = &mop500_keymap_data,
 126         .no_autorepeat  = true,
 127         .krow           = SKE_KPD_MAX_ROWS,     /* 8x8 matrix */
 128         .kcol           = SKE_KPD_MAX_COLS,
 129         .debounce_ms    = 40,                   /* in millisecs */
 130 };
 131
 132 /*
 133  * STMPE1601
 134  */
 135 static struct stmpe_keypad_platform_data stmpe1601_keypad_data = {
 136         .debounce_ms    = 64,
 137         .scan_count     = 8,
 138         .no_autorepeat  = true,
 139         .keymap_data    = &mop500_keymap_data,
 140 };
 141
 142 static struct stmpe_platform_data stmpe1601_data = {
 143         .id             = 1,
 144         .blocks         = STMPE_BLOCK_KEYPAD,
 145         .irq_trigger    = IRQF_TRIGGER_FALLING,
 146         .irq_base       = MOP500_STMPE1601_IRQ(0),
 147         .keypad         = &stmpe1601_keypad_data,
 148         .autosleep      = true,
 149         .autosleep_timeout = 1024,
 150 };
 151
 152 static struct i2c_board_info mop500_i2c0_devices_stuib[] = {
 153         {
 154                 I2C_BOARD_INFO("stmpe1601", 0x40),
 155                 .irq = NOMADIK_GPIO_TO_IRQ(218),
 156                 .platform_data = &stmpe1601_data,
 157                 .flags = I2C_CLIENT_WAKE,
 158         },
 159 };
 160
 161 /*
 162  * TC35893
 163  */
 164
 165 static const unsigned int uib_keymap[] = {
 166         KEY(3, 1, KEY_END),
 167         KEY(4, 1, KEY_POWER),
 168         KEY(6, 4, KEY_VOLUMEDOWN),
 169         KEY(4, 2, KEY_EMAIL),
 170         KEY(3, 3, KEY_RIGHT),
 171         KEY(2, 5, KEY_BACKSPACE),
 172
 173         KEY(6, 7, KEY_MENU),
 174         KEY(5, 0, KEY_ENTER),
 175         KEY(4, 3, KEY_0),
 176         KEY(3, 4, KEY_DOT),
 177         KEY(5, 2, KEY_UP),
 178         KEY(3, 5, KEY_DOWN),
 179
 180         KEY(4, 5, KEY_SEND),
 181         KEY(0, 5, KEY_BACK),
 182         KEY(6, 2, KEY_VOLUMEUP),
 183         KEY(1, 3, KEY_SPACE),
 184         KEY(7, 6, KEY_LEFT),
 185         KEY(5, 5, KEY_SEARCH),
 186 };
 187
 188 static struct matrix_keymap_data uib_keymap_data = {
 189         .keymap         = uib_keymap,
 190         .keymap_size    = ARRAY_SIZE(uib_keymap),
 191 };
 192
 193 static struct tc3589x_keypad_platform_data tc35893_data = {
 194         .krow = TC_KPD_ROWS,
 195         .kcol = TC_KPD_COLUMNS,
 196         .debounce_period = TC_KPD_DEBOUNCE_PERIOD,
 197         .settle_time = TC_KPD_SETTLE_TIME,
 198         .irqtype = IRQF_TRIGGER_FALLING,
 199         .enable_wakeup = true,
 200         .keymap_data    = &uib_keymap_data,
 201         .no_autorepeat  = true,
 202 };
 203
 204 static struct tc3589x_platform_data tc3589x_keypad_data = {
 205         .block = TC3589x_BLOCK_KEYPAD,
 206         .keypad = &tc35893_data,
 207         .irq_base = MOP500_EGPIO_IRQ_BASE,
 208 };
 209
 210 static struct i2c_board_info mop500_i2c0_devices_uib[] = {
 211         {
 212                 I2C_BOARD_INFO("tc3589x", 0x44),
 213                 .platform_data = &tc3589x_keypad_data,
 214                 .irq = NOMADIK_GPIO_TO_IRQ(218),
 215                 .flags = I2C_CLIENT_WAKE,
 216         },
 217 };
 218
 219 void mop500_keypad_init(void)
 220 {
 221         db8500_add_ske_keypad(&ske_keypad_board);
 222
 223         i2c_register_board_info(0, mop500_i2c0_devices_stuib,
 224                         ARRAY_SIZE(mop500_i2c0_devices_stuib));
 225
 226         i2c_register_board_info(0, mop500_i2c0_devices_uib,
 227                         ARRAY_SIZE(mop500_i2c0_devices_uib));
 228
 229 }