arch/arm/mach-tegra/board-cardhu-kbc.c

   1 /*
   2  * arch/arm/mach-tegra/board-cardhu-kbc.c
   3  * Keys configuration for Nvidia tegra3 cardhu platform.
   4  *
   5  * Copyright (C) 2011 NVIDIA, Inc.
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License version 2 as
   9  * published by the Free Software Foundation.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  19  * 02111-1307, USA
  20  */
  21
  22 #include <linux/kernel.h>
  23 #include <linux/platform_device.h>
  24 #include <linux/input.h>
  25 #include <linux/device.h>
  26 #include <linux/gpio.h>
  27 #include <linux/gpio_keys.h>
  28 #include <linux/mfd/tps6591x.h>
  29 #include <linux/mfd/max77663-core.h>
  30 #include <linux/interrupt_keys.h>
  31 #include <linux/gpio_scrollwheel.h>
  32
  33 #include <mach/irqs.h>
  34 #include <mach/io.h>
  35 #include <mach/iomap.h>
  36 #include <mach/kbc.h>
  37 #include "board.h"
  38 #include "board-cardhu.h"
  39
  40 #include "gpio-names.h"
  41 #include "devices.h"
  42
  43 #define CARDHU_PM269_ROW_COUNT  2
  44 #define CARDHU_PM269_COL_COUNT  4
  45
  46 static const u32 kbd_keymap[] = {
  47         KEY(0, 0, KEY_POWER),
  48         KEY(0, 1, KEY_RESERVED),
  49         KEY(0, 2, KEY_VOLUMEUP),
  50         KEY(0, 3, KEY_VOLUMEDOWN),
  51
  52         KEY(1, 0, KEY_HOME),
  53         KEY(1, 1, KEY_MENU),
  54         KEY(1, 2, KEY_BACK),
  55         KEY(1, 3, KEY_SEARCH),
  56 };
  57 static const struct matrix_keymap_data keymap_data = {
  58         .keymap  = kbd_keymap,
  59         .keymap_size    = ARRAY_SIZE(kbd_keymap),
  60 };
  61
  62 static struct tegra_kbc_wake_key cardhu_wake_cfg[] = {
  63         [0] = {
  64                 .row = 0,
  65                 .col = 0,
  66         },
  67 };
  68
  69 static struct tegra_kbc_platform_data cardhu_kbc_platform_data = {
  70         .debounce_cnt = 20 * 32, /* 20ms debounce time */
  71         .repeat_cnt = 1,
  72         .scan_count = 30,
  73         .wakeup = true,
  74         .keymap_data = &keymap_data,
  75         .wake_cnt = 1,
  76         .wake_cfg = &cardhu_wake_cfg[0],
  77 #ifdef CONFIG_ANDROID
  78         .disable_ev_rep = true,
  79 #endif
  80 };
  81
  82 int __init cardhu_kbc_init(void)
  83 {
  84         struct tegra_kbc_platform_data *data = &cardhu_kbc_platform_data;
  85         int i;
  86         struct board_info board_info;
  87
  88         tegra_get_board_info(&board_info);
  89         if ((board_info.board_id == BOARD_E1198) ||
  90                         (board_info.board_id == BOARD_E1291))
  91                 return 0;
  92
  93         pr_info("Registering tegra-kbc\n");
  94         tegra_kbc_device.dev.platform_data = &cardhu_kbc_platform_data;
  95
  96         for (i = 0; i < CARDHU_PM269_ROW_COUNT; i++) {
  97                 data->pin_cfg[i].num = i;
  98                 data->pin_cfg[i].is_row = true;
  99                 data->pin_cfg[i].en = true;
 100         }
 101         for (i = 0; i < CARDHU_PM269_COL_COUNT; i++) {
 102                 data->pin_cfg[i + KBC_PIN_GPIO_16].num = i;
 103                 data->pin_cfg[i + KBC_PIN_GPIO_16].en = true;
 104         }
 105
 106         platform_device_register(&tegra_kbc_device);
 107         return 0;
 108 }
 109
 110 int __init cardhu_scroll_init(void)
 111 {
 112         return 0;
 113 }
 114
 115 #define GPIO_KEY(_id, _gpio, _iswake)           \
 116         {                                       \
 117                 .code = _id,                    \
 118                 .gpio = TEGRA_GPIO_##_gpio,     \
 119                 .active_low = 1,                \
 120                 .desc = #_id,                   \
 121                 .type = EV_KEY,                 \
 122                 .wakeup = _iswake,              \
 123                 .debounce_interval = 10,        \
 124         }
 125
 126 static struct gpio_keys_button cardhu_keys_e1198[] = {
 127         [0] = GPIO_KEY(KEY_HOME, PQ0, 0),
 128         [1] = GPIO_KEY(KEY_BACK, PQ1, 0),
 129         [2] = GPIO_KEY(KEY_MENU, PQ2, 0),
 130         [3] = GPIO_KEY(KEY_SEARCH, PQ3, 0),
 131         [4] = GPIO_KEY(KEY_VOLUMEUP, PR0, 0),
 132         [5] = GPIO_KEY(KEY_VOLUMEDOWN, PR1, 0),
 133         [6] = GPIO_KEY(KEY_POWER, PV0, 1),
 134 };
 135
 136 static struct gpio_keys_platform_data cardhu_keys_e1198_platform_data = {
 137         .buttons        = cardhu_keys_e1198,
 138         .nbuttons       = ARRAY_SIZE(cardhu_keys_e1198),
 139 };
 140
 141 static struct platform_device cardhu_keys_e1198_device = {
 142         .name   = "gpio-keys",
 143         .id     = 0,
 144         .dev    = {
 145                 .platform_data  = &cardhu_keys_e1198_platform_data,
 146         },
 147 };
 148
 149 static struct gpio_keys_button cardhu_keys_e1291[] = {
 150         [0] = GPIO_KEY(KEY_MENU, PR0, 0),
 151         [1] = GPIO_KEY(KEY_BACK, PR1, 0),
 152         [2] = GPIO_KEY(KEY_HOME, PR2, 0),
 153         [3] = GPIO_KEY(KEY_SEARCH, PQ3, 0),
 154         [4] = GPIO_KEY(KEY_VOLUMEUP, PQ0, 0),
 155         [5] = GPIO_KEY(KEY_VOLUMEDOWN, PQ1, 0),
 156 };
 157
 158 static struct gpio_keys_button cardhu_keys_e1291_a04[] = {
 159         [0] = GPIO_KEY(KEY_MENU, PR0, 0),
 160         [1] = GPIO_KEY(KEY_BACK, PR1, 0),
 161         [2] = GPIO_KEY(KEY_HOME, PQ2, 0),
 162         [3] = GPIO_KEY(KEY_SEARCH, PQ3, 0),
 163         [4] = GPIO_KEY(KEY_VOLUMEUP, PQ0, 0),
 164         [5] = GPIO_KEY(KEY_VOLUMEDOWN, PQ1, 0),
 165 };
 166
 167 static struct gpio_keys_platform_data cardhu_keys_e1291_platform_data = {
 168         .buttons        = cardhu_keys_e1291,
 169         .nbuttons       = ARRAY_SIZE(cardhu_keys_e1291),
 170 };
 171
 172 static struct platform_device cardhu_keys_e1291_device = {
 173         .name   = "gpio-keys",
 174         .id     = 0,
 175         .dev    = {
 176                 .platform_data  = &cardhu_keys_e1291_platform_data,
 177         },
 178 };
 179
 180 #define INT_KEY(_id, _irq, _iswake, _deb_int)   \
 181         {                                       \
 182                 .code = _id,                    \
 183                 .irq = _irq,                    \
 184                 .active_low = 1,                \
 185                 .desc = #_id,                   \
 186                 .type = EV_KEY,                 \
 187                 .wakeup = _iswake,              \
 188                 .debounce_interval = _deb_int,  \
 189         }
 190 static struct interrupt_keys_button cardhu_int_keys[] = {
 191         [0] = INT_KEY(KEY_POWER, TPS6591X_IRQ_BASE + TPS6591X_INT_PWRON, 1, 100),
 192 };
 193
 194 static struct interrupt_keys_button cardhu_pm298_int_keys[] = {
 195         [0] = INT_KEY(KEY_POWER, MAX77663_IRQ_BASE + MAX77663_IRQ_ONOFF_EN0_FALLING, 1, 100),
 196         [1] = INT_KEY(KEY_POWER, MAX77663_IRQ_BASE + MAX77663_IRQ_ONOFF_EN0_1SEC, 1, 3000),
 197 };
 198
 199 static struct interrupt_keys_button cardhu_pm299_int_keys[] = {
 200         [0] = INT_KEY(KEY_POWER, RICOH583_IRQ_BASE + RICOH583_IRQ_ONKEY, 1, 100),
 201 };
 202
 203 static struct interrupt_keys_platform_data cardhu_int_keys_pdata = {
 204         .int_buttons    = cardhu_int_keys,
 205         .nbuttons       = ARRAY_SIZE(cardhu_int_keys),
 206 };
 207
 208 static struct platform_device cardhu_int_keys_device = {
 209         .name   = "interrupt-keys",
 210         .id     = 0,
 211         .dev    = {
 212                 .platform_data  = &cardhu_int_keys_pdata,
 213         },
 214 };
 215
 216 int __init cardhu_keys_init(void)
 217 {
 218         int i;
 219         struct board_info board_info;
 220         struct board_info pmu_board_info;
 221
 222         tegra_get_board_info(&board_info);
 223         if (!((board_info.board_id == BOARD_E1198) ||
 224                 (board_info.board_id == BOARD_E1291) ||
 225                 (board_info.board_id == BOARD_E1186) ||
 226                 (board_info.board_id == BOARD_E1257) ||
 227                 (board_info.board_id == BOARD_PM305) ||
 228                 (board_info.board_id == BOARD_PM311) ||
 229                 (board_info.board_id == BOARD_PM269)))
 230                 return 0;
 231
 232         pr_info("Registering gpio keys\n");
 233
 234         if (board_info.board_id == BOARD_E1291) {
 235                 if (board_info.fab >= BOARD_FAB_A04) {
 236                         cardhu_keys_e1291_platform_data.buttons =
 237                                         cardhu_keys_e1291_a04;
 238                         cardhu_keys_e1291_platform_data.nbuttons =
 239                                         ARRAY_SIZE(cardhu_keys_e1291_a04);
 240                 }
 241
 242                 /* Enable gpio mode for other pins */
 243                 for (i = 0; i < cardhu_keys_e1291_platform_data.nbuttons; i++)
 244                         tegra_gpio_enable(cardhu_keys_e1291_platform_data.
 245                                                 buttons[i].gpio);
 246
 247                 platform_device_register(&cardhu_keys_e1291_device);
 248         } else if (board_info.board_id == BOARD_E1198) {
 249                 /* For E1198 */
 250                 for (i = 0; i < ARRAY_SIZE(cardhu_keys_e1198); i++)
 251                         tegra_gpio_enable(cardhu_keys_e1198[i].gpio);
 252
 253                 platform_device_register(&cardhu_keys_e1198_device);
 254         }
 255
 256         /* Register on-key through pmu interrupt */
 257         tegra_get_pmu_board_info(&pmu_board_info);
 258
 259         if (pmu_board_info.board_id == BOARD_PMU_PM298) {
 260                 cardhu_int_keys_pdata.int_buttons = cardhu_pm298_int_keys;
 261                 cardhu_int_keys_pdata.nbuttons =
 262                                         ARRAY_SIZE(cardhu_pm298_int_keys);
 263         }
 264
 265         if (pmu_board_info.board_id == BOARD_PMU_PM299) {
 266                 cardhu_int_keys_pdata.int_buttons = cardhu_pm299_int_keys;
 267                 cardhu_int_keys_pdata.nbuttons =
 268                                         ARRAY_SIZE(cardhu_pm299_int_keys);
 269         }
 270
 271         if ((board_info.board_id == BOARD_E1291) ||
 272                 (board_info.board_id == BOARD_E1198) ||
 273                 (board_info.board_id == BOARD_E1257) ||
 274                 (board_info.board_id == BOARD_E1186) ||
 275                 (board_info.board_id == BOARD_PM305) ||
 276                 (board_info.board_id == BOARD_PM311) ||
 277                 (board_info.board_id == BOARD_PM269))
 278                 platform_device_register(&cardhu_int_keys_device);
 279         return 0;
 280 }