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Diffstat (limited to 'arch/arm/mach-tegra/board-cardhu-kbc.c')
-rw-r--r--arch/arm/mach-tegra/board-cardhu-kbc.c299
1 files changed, 299 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/board-cardhu-kbc.c b/arch/arm/mach-tegra/board-cardhu-kbc.c
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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/gpio_scrollwheel.h>
31
32#include <mach/irqs.h>
33#include <mach/io.h>
34#include <mach/iomap.h>
35#include <mach/kbc.h>
36#include "board.h"
37#include "board-cardhu.h"
38
39#include "gpio-names.h"
40#include "devices.h"
41
42#define CARDHU_PM269_ROW_COUNT 2
43#define CARDHU_PM269_COL_COUNT 4
44
45static const u32 kbd_keymap[] = {
46 KEY(0, 0, KEY_POWER),
47 KEY(0, 1, KEY_RESERVED),
48 KEY(0, 2, KEY_VOLUMEUP),
49 KEY(0, 3, KEY_VOLUMEDOWN),
50
51 KEY(1, 0, KEY_HOME),
52 KEY(1, 1, KEY_MENU),
53 KEY(1, 2, KEY_BACK),
54 KEY(1, 3, KEY_SEARCH),
55};
56static const struct matrix_keymap_data keymap_data = {
57 .keymap = kbd_keymap,
58 .keymap_size = ARRAY_SIZE(kbd_keymap),
59};
60
61static struct tegra_kbc_wake_key cardhu_wake_cfg[] = {
62 [0] = {
63 .row = 0,
64 .col = 0,
65 },
66};
67
68static struct tegra_kbc_platform_data cardhu_kbc_platform_data = {
69 .debounce_cnt = 20 * 32, /* 20ms debounce time */
70 .repeat_cnt = 1,
71 .scan_count = 30,
72 .wakeup = true,
73 .keymap_data = &keymap_data,
74 .wake_cnt = 1,
75 .wake_cfg = &cardhu_wake_cfg[0],
76#ifdef CONFIG_ANDROID
77 .disable_ev_rep = true,
78#endif
79};
80
81int __init cardhu_kbc_init(void)
82{
83 struct tegra_kbc_platform_data *data = &cardhu_kbc_platform_data;
84 int i;
85 struct board_info board_info;
86
87 tegra_get_board_info(&board_info);
88 if ((board_info.board_id == BOARD_E1198) ||
89 (board_info.board_id == BOARD_E1291))
90 return 0;
91
92 pr_info("Registering tegra-kbc\n");
93 tegra_kbc_device.dev.platform_data = &cardhu_kbc_platform_data;
94
95 for (i = 0; i < CARDHU_PM269_ROW_COUNT; i++) {
96 data->pin_cfg[i].num = i;
97 data->pin_cfg[i].is_row = true;
98 data->pin_cfg[i].en = true;
99 }
100 for (i = 0; i < CARDHU_PM269_COL_COUNT; i++) {
101 data->pin_cfg[i + KBC_PIN_GPIO_16].num = i;
102 data->pin_cfg[i + KBC_PIN_GPIO_16].en = true;
103 }
104
105 platform_device_register(&tegra_kbc_device);
106 return 0;
107}
108
109int __init cardhu_scroll_init(void)
110{
111 return 0;
112}
113
114#define GPIO_KEY(_id, _gpio, _iswake) \
115 { \
116 .code = _id, \
117 .gpio = TEGRA_GPIO_##_gpio, \
118 .active_low = 1, \
119 .desc = #_id, \
120 .type = EV_KEY, \
121 .wakeup = _iswake, \
122 .debounce_interval = 10, \
123 }
124
125#define GPIO_IKEY(_id, _irq, _iswake, _deb) \
126 { \
127 .code = _id, \
128 .gpio = -1, \
129 .irq = _irq, \
130 .desc = #_id, \
131 .type = EV_KEY, \
132 .wakeup = _iswake, \
133 .debounce_interval = _deb, \
134 }
135
136static struct gpio_keys_button cardhu_keys_e1198[] = {
137 [0] = GPIO_KEY(KEY_HOME, PQ0, 0),
138 [1] = GPIO_KEY(KEY_BACK, PQ1, 0),
139 [2] = GPIO_KEY(KEY_MENU, PQ2, 0),
140 [3] = GPIO_KEY(KEY_SEARCH, PQ3, 0),
141 [4] = GPIO_KEY(KEY_VOLUMEUP, PR0, 0),
142 [5] = GPIO_KEY(KEY_VOLUMEDOWN, PR1, 0),
143 [6] = GPIO_KEY(KEY_POWER, PV0, 1),
144 [7] = GPIO_IKEY(KEY_POWER, TPS6591X_IRQ_BASE + TPS6591X_INT_PWRON, 1, 100),
145};
146
147static struct gpio_keys_platform_data cardhu_keys_e1198_pdata = {
148 .buttons = cardhu_keys_e1198,
149 .nbuttons = ARRAY_SIZE(cardhu_keys_e1198),
150};
151
152static struct platform_device cardhu_keys_e1198_device = {
153 .name = "gpio-keys",
154 .id = 0,
155 .dev = {
156 .platform_data = &cardhu_keys_e1198_pdata,
157 },
158};
159
160static struct gpio_keys_button cardhu_keys_e1291[] = {
161 [0] = GPIO_KEY(KEY_VOLUMEDOWN, PR0, 0),
162 [1] = GPIO_KEY(KEY_VOLUMEUP, PR1, 0),
163 [2] = GPIO_KEY(KEY_HOME, PR2, 0),
164 [3] = GPIO_KEY(KEY_SEARCH, PQ3, 0),
165 [4] = GPIO_KEY(KEY_BACK, PQ0, 0),
166 [5] = GPIO_KEY(KEY_MENU, PQ1, 0),
167 [6] = GPIO_IKEY(KEY_POWER, TPS6591X_IRQ_BASE + TPS6591X_INT_PWRON, 1, 100),
168};
169
170static struct gpio_keys_button cardhu_keys_e1291_a04[] = {
171 [0] = GPIO_KEY(KEY_VOLUMEDOWN, PR0, 0),
172 [1] = GPIO_KEY(KEY_VOLUMEUP, PR1, 0),
173 [2] = GPIO_KEY(KEY_HOME, PQ2, 0),
174 [3] = GPIO_KEY(KEY_SEARCH, PQ3, 0),
175 [4] = GPIO_KEY(KEY_BACK, PQ0, 0),
176 [5] = GPIO_KEY(KEY_MENU, PQ1, 0),
177 [6] = GPIO_IKEY(KEY_POWER, TPS6591X_IRQ_BASE + TPS6591X_INT_PWRON, 1, 100),
178};
179
180static struct gpio_keys_platform_data cardhu_keys_e1291_pdata = {
181 .buttons = cardhu_keys_e1291,
182 .nbuttons = ARRAY_SIZE(cardhu_keys_e1291),
183};
184
185static struct platform_device cardhu_keys_e1291_device = {
186 .name = "gpio-keys",
187 .id = 0,
188 .dev = {
189 .platform_data = &cardhu_keys_e1291_pdata,
190 },
191};
192
193static struct gpio_keys_button cardhu_int_keys[] = {
194 [0] = GPIO_IKEY(KEY_POWER, TPS6591X_IRQ_BASE + TPS6591X_INT_PWRON, 1, 100),
195};
196
197static struct gpio_keys_button cardhu_pm298_int_keys[] = {
198 [0] = GPIO_IKEY(KEY_POWER, MAX77663_IRQ_BASE + MAX77663_IRQ_ONOFF_EN0_FALLING, 1, 100),
199 [1] = GPIO_IKEY(KEY_POWER, MAX77663_IRQ_BASE + MAX77663_IRQ_ONOFF_EN0_1SEC, 1, 3000),
200};
201
202static struct gpio_keys_button cardhu_pm299_int_keys[] = {
203 [0] = GPIO_IKEY(KEY_POWER, RICOH583_IRQ_BASE + RICOH583_IRQ_ONKEY, 1, 100),
204};
205
206static struct gpio_keys_platform_data cardhu_int_keys_pdata = {
207 .buttons = cardhu_int_keys,
208 .nbuttons = ARRAY_SIZE(cardhu_int_keys),
209};
210
211static struct platform_device cardhu_int_keys_device = {
212 .name = "gpio-keys",
213 .id = 0,
214 .dev = {
215 .platform_data = &cardhu_int_keys_pdata,
216 },
217};
218
219int __init cardhu_keys_init(void)
220{
221 int i;
222 struct board_info board_info;
223 struct board_info pmu_board_info;
224 int gpio_nr;
225
226 tegra_get_board_info(&board_info);
227 if (!((board_info.board_id == BOARD_E1198) ||
228 (board_info.board_id == BOARD_E1291) ||
229 (board_info.board_id == BOARD_E1186) ||
230 (board_info.board_id == BOARD_E1257) ||
231 (board_info.board_id == BOARD_PM305) ||
232 (board_info.board_id == BOARD_PM311) ||
233 (board_info.board_id == BOARD_PM269)))
234 return 0;
235
236 pr_info("Registering gpio keys\n");
237
238 if (board_info.board_id == BOARD_E1291) {
239 if (board_info.fab >= BOARD_FAB_A04) {
240 cardhu_keys_e1291_pdata.buttons =
241 cardhu_keys_e1291_a04;
242 cardhu_keys_e1291_pdata.nbuttons =
243 ARRAY_SIZE(cardhu_keys_e1291_a04);
244 }
245
246 /* Enable gpio mode for other pins */
247 for (i = 0; i < cardhu_keys_e1291_pdata.nbuttons; i++) {
248 gpio_nr = cardhu_keys_e1291_pdata.buttons[i].gpio;
249 if (gpio_nr < 0) {
250 if (get_tegra_image_type() == rck_image)
251 cardhu_keys_e1291_pdata.buttons[i].code
252 = KEY_ENTER;
253 } else {
254 tegra_gpio_enable(gpio_nr);
255 }
256 }
257
258 platform_device_register(&cardhu_keys_e1291_device);
259 } else if (board_info.board_id == BOARD_E1198) {
260 /* For E1198 */
261 for (i = 0; i < ARRAY_SIZE(cardhu_keys_e1198); i++) {
262 gpio_nr = cardhu_keys_e1198[i].gpio;
263 if (gpio_nr < 0) {
264 if (get_tegra_image_type() == rck_image)
265 cardhu_keys_e1198[i].code = KEY_ENTER;
266 } else {
267 tegra_gpio_enable(gpio_nr);
268 }
269 }
270
271 platform_device_register(&cardhu_keys_e1198_device);
272 }
273
274 /* Register on-key through pmu interrupt */
275 tegra_get_pmu_board_info(&pmu_board_info);
276
277 if (pmu_board_info.board_id == BOARD_PMU_PM298) {
278 cardhu_int_keys_pdata.buttons = cardhu_pm298_int_keys;
279 cardhu_int_keys_pdata.nbuttons =
280 ARRAY_SIZE(cardhu_pm298_int_keys);
281 }
282
283 if (pmu_board_info.board_id == BOARD_PMU_PM299) {
284 cardhu_int_keys_pdata.buttons = cardhu_pm299_int_keys;
285 cardhu_int_keys_pdata.nbuttons =
286 ARRAY_SIZE(cardhu_pm299_int_keys);
287 }
288
289 if ((board_info.board_id == BOARD_E1257) ||
290 (board_info.board_id == BOARD_E1186) ||
291 (board_info.board_id == BOARD_PM305) ||
292 (board_info.board_id == BOARD_PM311) ||
293 (board_info.board_id == BOARD_PM269)) {
294 if (get_tegra_image_type() == rck_image)
295 cardhu_int_keys[0].code = KEY_ENTER;
296 platform_device_register(&cardhu_int_keys_device);
297 }
298 return 0;
299}
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