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/*
* Copyright (C) 2009
* Guennadi Liakhovetski, DENX Software Engineering, <lg@denx.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/gpio.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <linux/platform_device.h>
#include <linux/spi/spi.h>
#include <mach/common.h>
#include <mach/iomux-mx3.h>
#include <asm/mach-types.h>
#include "pcm037.h"
#include "devices.h"
static unsigned int pcm037_eet_pins[] = {
/* Reserve and hardwire GPIO 57 high - S6E63D6 chipselect */
IOMUX_MODE(MX31_PIN_KEY_COL7, IOMUX_CONFIG_GPIO),
/* GPIO keys */
IOMUX_MODE(MX31_PIN_GPIO1_0, IOMUX_CONFIG_GPIO), /* 0 */
IOMUX_MODE(MX31_PIN_GPIO1_1, IOMUX_CONFIG_GPIO), /* 1 */
IOMUX_MODE(MX31_PIN_GPIO1_2, IOMUX_CONFIG_GPIO), /* 2 */
IOMUX_MODE(MX31_PIN_GPIO1_3, IOMUX_CONFIG_GPIO), /* 3 */
IOMUX_MODE(MX31_PIN_SVEN0, IOMUX_CONFIG_GPIO), /* 32 */
IOMUX_MODE(MX31_PIN_STX0, IOMUX_CONFIG_GPIO), /* 33 */
IOMUX_MODE(MX31_PIN_SRX0, IOMUX_CONFIG_GPIO), /* 34 */
IOMUX_MODE(MX31_PIN_SIMPD0, IOMUX_CONFIG_GPIO), /* 35 */
IOMUX_MODE(MX31_PIN_RTS1, IOMUX_CONFIG_GPIO), /* 38 */
IOMUX_MODE(MX31_PIN_CTS1, IOMUX_CONFIG_GPIO), /* 39 */
IOMUX_MODE(MX31_PIN_KEY_ROW4, IOMUX_CONFIG_GPIO), /* 50 */
IOMUX_MODE(MX31_PIN_KEY_ROW5, IOMUX_CONFIG_GPIO), /* 51 */
IOMUX_MODE(MX31_PIN_KEY_ROW6, IOMUX_CONFIG_GPIO), /* 52 */
IOMUX_MODE(MX31_PIN_KEY_ROW7, IOMUX_CONFIG_GPIO), /* 53 */
/* LEDs */
IOMUX_MODE(MX31_PIN_DTR_DTE1, IOMUX_CONFIG_GPIO), /* 44 */
IOMUX_MODE(MX31_PIN_DSR_DTE1, IOMUX_CONFIG_GPIO), /* 45 */
IOMUX_MODE(MX31_PIN_KEY_COL5, IOMUX_CONFIG_GPIO), /* 55 */
IOMUX_MODE(MX31_PIN_KEY_COL6, IOMUX_CONFIG_GPIO), /* 56 */
};
/* SPI */
static struct spi_board_info pcm037_spi_dev[] = {
{
.modalias = "dac124s085",
.max_speed_hz = 400000,
.bus_num = 0,
.chip_select = 0, /* Index in pcm037_spi1_cs[] */
.mode = SPI_CPHA,
},
};
/* Platform Data for MXC CSPI */
#if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE)
static int pcm037_spi1_cs[] = {MXC_SPI_CS(1), IOMUX_TO_GPIO(MX31_PIN_KEY_COL7)};
static const struct spi_imx_master pcm037_spi1_pdata __initconst = {
.chipselect = pcm037_spi1_cs,
.num_chipselect = ARRAY_SIZE(pcm037_spi1_cs),
};
#endif
/* GPIO-keys input device */
static struct gpio_keys_button pcm037_gpio_keys[] = {
{
.type = EV_KEY,
.code = KEY_L,
.gpio = 0,
.desc = "Wheel Manual",
.wakeup = 0,
}, {
.type = EV_KEY,
.code = KEY_A,
.gpio = 1,
.desc = "Wheel AF",
.wakeup = 0,
}, {
.type = EV_KEY,
.code = KEY_V,
.gpio = 2,
.desc = "Wheel View",
.wakeup = 0,
}, {
.type = EV_KEY,
.code = KEY_M,
.gpio = 3,
.desc = "Wheel Menu",
.wakeup = 0,
}, {
.type = EV_KEY,
.code = KEY_UP,
.gpio = 32,
.desc = "Nav Pad Up",
.wakeup = 0,
}, {
.type = EV_KEY,
.code = KEY_RIGHT,
.gpio = 33,
.desc = "Nav Pad Right",
.wakeup = 0,
}, {
.type = EV_KEY,
.code = KEY_DOWN,
.gpio = 34,
.desc = "Nav Pad Down",
.wakeup = 0,
}, {
.type = EV_KEY,
.code = KEY_LEFT,
.gpio = 35,
.desc = "Nav Pad Left",
.wakeup = 0,
}, {
.type = EV_KEY,
.code = KEY_ENTER,
.gpio = 38,
.desc = "Nav Pad Ok",
.wakeup = 0,
}, {
.type = EV_KEY,
.code = KEY_O,
.gpio = 39,
.desc = "Wheel Off",
.wakeup = 0,
}, {
.type = EV_KEY,
.code = BTN_FORWARD,
.gpio = 50,
.desc = "Focus Forward",
.wakeup = 0,
}, {
.type = EV_KEY,
.code = BTN_BACK,
.gpio = 51,
.desc = "Focus Backward",
.wakeup = 0,
}, {
.type = EV_KEY,
.code = BTN_MIDDLE,
.gpio = 52,
.desc = "Release Half",
.wakeup = 0,
}, {
.type = EV_KEY,
.code = BTN_EXTRA,
.gpio = 53,
.desc = "Release Full",
.wakeup = 0,
},
};
static struct gpio_keys_platform_data pcm037_gpio_keys_platform_data = {
.buttons = pcm037_gpio_keys,
.nbuttons = ARRAY_SIZE(pcm037_gpio_keys),
.rep = 0, /* No auto-repeat */
};
static struct platform_device pcm037_gpio_keys_device = {
.name = "gpio-keys",
.id = -1,
.dev = {
.platform_data = &pcm037_gpio_keys_platform_data,
},
};
static int eet_init_devices(void)
{
if (!machine_is_pcm037() || pcm037_variant() != PCM037_EET)
return 0;
mxc_iomux_setup_multiple_pins(pcm037_eet_pins,
ARRAY_SIZE(pcm037_eet_pins), "pcm037_eet");
/* SPI */
spi_register_board_info(pcm037_spi_dev, ARRAY_SIZE(pcm037_spi_dev));
#if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE)
imx35_add_spi_imx0(&pcm037_spi1_pdata);
#endif
platform_device_register(&pcm037_gpio_keys_device);
return 0;
}
late_initcall(eet_init_devices);
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