[ARM] tegra: olympus: Add keypad

Change-Id: I7ea2f8a1b7e14c31107621cbdbde3ab84546784f
Signed-off-by: Colin Cross <ccross@android.com>

diff --git a/arch/arm/mach-tegra/Makefile b/arch/arm/mach-tegra/Makefile
index e813c2bb622b93f01e06f3294b46c5a2ec0f09cc..ca7c7b87e90b18e14f5d203feb1bc1747cac63d0 100644 (file)
--- a/arch/arm/mach-tegra/Makefile
+++ b/arch/arm/mach-tegra/Makefile
@@ -49,3 +49,4 @@ obj-${CONFIG_MACH_OLYMPUS}              += board-olympus-pinmux.o
 obj-${CONFIG_MACH_OLYMPUS}              += board-olympus-panel.o
 obj-${CONFIG_MACH_OLYMPUS}              += board-olympus-sdhci.o
 obj-${CONFIG_MACH_OLYMPUS}              += board-olympus-i2c.o
+obj-${CONFIG_MACH_OLYMPUS}              += board-olympus-keypad.o

diff --git a/arch/arm/mach-tegra/board-olympus-keypad.c b/arch/arm/mach-tegra/board-olympus-keypad.c
new file mode 100644 (file)
index 0000000..5b7580e
--- /dev/null
+++ b/arch/arm/mach-tegra/board-olympus-keypad.c
@@ -0,0 +1,125 @@
+/*
+ * arch/arm/mach-tegra/board-olympus-keypad.c
+ *
+ * Copyright (C) 2010 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/platform_device.h>
+#include <linux/input.h>
+#include <linux/gpio_event.h>
+#include <linux/keyreset.h>
+#include <linux/gpio.h>
+#include "gpio-names.h"
+
+static unsigned int tegra_row_gpios[] = {
+       TEGRA_GPIO_PR0,
+       TEGRA_GPIO_PR1,
+       TEGRA_GPIO_PR2
+};
+static unsigned int tegra_col_gpios[] = {
+       TEGRA_GPIO_PQ0,
+       TEGRA_GPIO_PQ1,
+       TEGRA_GPIO_PQ2
+};
+
+#define KEYMAP_INDEX(col, row) ((col)*ARRAY_SIZE(tegra_row_gpios) + (row))
+
+static const unsigned short tegra_p3_keymap[ARRAY_SIZE(tegra_col_gpios) *
+                                            ARRAY_SIZE(tegra_row_gpios)] = {
+       [KEYMAP_INDEX(0, 0)] = KEY_VOLUMEUP,
+       [KEYMAP_INDEX(1, 0)] = KEY_CAMERA_FOCUS,
+       [KEYMAP_INDEX(2, 0)] = KEY_MENU,
+       [KEYMAP_INDEX(0, 1)] = KEY_VOLUMEDOWN,
+       [KEYMAP_INDEX(1, 1)] = KEY_CAMERA,
+       [KEYMAP_INDEX(2, 1)] = KEY_HOME,
+       [KEYMAP_INDEX(0, 2)] = KEY_AUX,
+       [KEYMAP_INDEX(1, 2)] = KEY_SEARCH,
+       [KEYMAP_INDEX(2, 2)] = KEY_BACK,
+};
+
+static struct gpio_event_matrix_info tegra_keypad_matrix_info = {
+       .info.func = gpio_event_matrix_func,
+       .keymap = tegra_p3_keymap,
+       .output_gpios = tegra_col_gpios,
+       .input_gpios = tegra_row_gpios,
+       .noutputs = ARRAY_SIZE(tegra_col_gpios),
+       .ninputs = ARRAY_SIZE(tegra_row_gpios),
+       .settle_time.tv.nsec = 40 * NSEC_PER_USEC,
+       .poll_time.tv.nsec = 20 * NSEC_PER_MSEC,
+       .flags = GPIOKPF_LEVEL_TRIGGERED_IRQ | GPIOKPF_REMOVE_PHANTOM_KEYS |
+                GPIOKPF_PRINT_UNMAPPED_KEYS /*| GPIOKPF_PRINT_MAPPED_KEYS*/
+};
+
+static struct gpio_event_direct_entry tegra_keypad_switch_map[] = {
+};
+
+static struct gpio_event_input_info tegra_keypad_switch_info = {
+       .info.func = gpio_event_input_func,
+       .flags = 0,
+       .type = EV_SW,
+       .keymap = tegra_keypad_switch_map,
+       .keymap_size = ARRAY_SIZE(tegra_keypad_switch_map)
+};
+
+static struct gpio_event_info *tegra_keypad_info[] = {
+       &tegra_keypad_matrix_info.info,
+       &tegra_keypad_switch_info.info,
+};
+
+static struct gpio_event_platform_data tegra_keypad_data = {
+       .name = "tegra-keypad",
+       .info = tegra_keypad_info,
+       .info_count = ARRAY_SIZE(tegra_keypad_info)
+};
+
+static struct platform_device tegra_keypad_device = {
+       .name = GPIO_EVENT_DEV_NAME,
+       .id = 0,
+       .dev            = {
+               .platform_data  = &tegra_keypad_data,
+       },
+};
+
+static int tegra_reset_keys_up[] = {
+       BTN_MOUSE,              /* XXX */
+        0
+};
+
+static struct keyreset_platform_data tegra_reset_keys_pdata = {
+       .keys_up = tegra_reset_keys_up,
+       .keys_down = {
+               KEY_LEFTSHIFT,
+               KEY_LEFTALT,
+               KEY_BACKSPACE,
+               0
+       },
+};
+
+struct platform_device tegra_reset_keys_device = {
+         .name = KEYRESET_NAME,
+         .dev.platform_data = &tegra_reset_keys_pdata,
+};
+
+static int __init tegra_init_keypad(void)
+{
+       tegra_gpio_enable(TEGRA_GPIO_PR0);
+       tegra_gpio_enable(TEGRA_GPIO_PR1);
+       tegra_gpio_enable(TEGRA_GPIO_PR2);
+       tegra_gpio_enable(TEGRA_GPIO_PQ0);
+       tegra_gpio_enable(TEGRA_GPIO_PQ1);
+       tegra_gpio_enable(TEGRA_GPIO_PQ2);
+       platform_device_register(&tegra_reset_keys_device);
+       return platform_device_register(&tegra_keypad_device);
+}
+
+device_initcall(tegra_init_keypad);