board-ams-delta.c

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/*
 * linux/arch/arm/mach-omap1/board-ams-delta.c
 *
 * Modified from board-generic.c
 *
 * Board specific inits for the Amstrad E3 (codename Delta) videophone
 *
 * Copyright (C) 2006 Jonathan McDowell <[email protected]>
 *
 * 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/basic_mmio_gpio.h>
#include <linux/gpio.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/leds.h>
#include <linux/platform_device.h>
#include <linux/regulator/consumer.h>
#include <linux/regulator/fixed.h>
#include <linux/regulator/machine.h>
#include <linux/serial_8250.h>
#include <linux/export.h>
#include <linux/omapfb.h>
#include <linux/io.h>
#include <linux/platform_data/gpio-omap.h>

#include <media/soc_camera.h>

#include <asm/serial.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>

#include <mach/board-ams-delta.h>
#include <linux/platform_data/keypad-omap.h>
#include <mach/mux.h>

#include <mach/hardware.h>
#include <mach/ams-delta-fiq.h>
#include <mach/camera.h>
#include <mach/usb.h>

#include "iomap.h"
#include "common.h"

static const unsigned int ams_delta_keymap[] = {
    KEY(0, 0, KEY_F1),      /* Advert    */

    KEY(0, 3, KEY_COFFEE),      /* Games     */
    KEY(0, 2, KEY_QUESTION),    /* Directory */
    KEY(2, 3, KEY_CONNECT),     /* Internet  */
    KEY(1, 2, KEY_SHOP),        /* Services  */
    KEY(1, 1, KEY_PHONE),       /* VoiceMail */

    KEY(0, 1, KEY_DELETE),      /* Delete    */
    KEY(2, 2, KEY_PLAY),        /* Play      */
    KEY(1, 0, KEY_PAGEUP),      /* Up        */
    KEY(1, 3, KEY_PAGEDOWN),    /* Down      */
    KEY(2, 0, KEY_EMAIL),       /* ReadEmail */
    KEY(2, 1, KEY_STOP),        /* Stop      */

    /* Numeric keypad portion */
    KEY(0, 7, KEY_KP1),
    KEY(0, 6, KEY_KP2),
    KEY(0, 5, KEY_KP3),
    KEY(1, 7, KEY_KP4),
    KEY(1, 6, KEY_KP5),
    KEY(1, 5, KEY_KP6),
    KEY(2, 7, KEY_KP7),
    KEY(2, 6, KEY_KP8),
    KEY(2, 5, KEY_KP9),
    KEY(3, 6, KEY_KP0),
    KEY(3, 7, KEY_KPASTERISK),
    KEY(3, 5, KEY_KPDOT),       /* # key     */
    KEY(7, 2, KEY_NUMLOCK),     /* Mute      */
    KEY(7, 1, KEY_KPMINUS),     /* Recall    */
    KEY(6, 1, KEY_KPPLUS),      /* Redial    */
    KEY(7, 6, KEY_KPSLASH),     /* Handsfree */
    KEY(6, 0, KEY_ENTER),       /* Video     */

    KEY(7, 4, KEY_CAMERA),      /* Photo     */

    KEY(0, 4, KEY_F2),      /* Home      */
    KEY(1, 4, KEY_F3),      /* Office    */
    KEY(2, 4, KEY_F4),      /* Mobile    */
    KEY(7, 7, KEY_F5),      /* SMS       */
    KEY(7, 5, KEY_F6),      /* Email     */

    /* QWERTY portion of keypad */
    KEY(3, 4, KEY_Q),
    KEY(3, 3, KEY_W),
    KEY(3, 2, KEY_E),
    KEY(3, 1, KEY_R),
    KEY(3, 0, KEY_T),
    KEY(4, 7, KEY_Y),
    KEY(4, 6, KEY_U),
    KEY(4, 5, KEY_I),
    KEY(4, 4, KEY_O),
    KEY(4, 3, KEY_P),

    KEY(4, 2, KEY_A),
    KEY(4, 1, KEY_S),
    KEY(4, 0, KEY_D),
    KEY(5, 7, KEY_F),
    KEY(5, 6, KEY_G),
    KEY(5, 5, KEY_H),
    KEY(5, 4, KEY_J),
    KEY(5, 3, KEY_K),
    KEY(5, 2, KEY_L),

    KEY(5, 1, KEY_Z),
    KEY(5, 0, KEY_X),
    KEY(6, 7, KEY_C),
    KEY(6, 6, KEY_V),
    KEY(6, 5, KEY_B),
    KEY(6, 4, KEY_N),
    KEY(6, 3, KEY_M),
    KEY(6, 2, KEY_SPACE),

    KEY(7, 0, KEY_LEFTSHIFT),   /* Vol up    */
    KEY(7, 3, KEY_LEFTCTRL),    /* Vol down  */
};

#define LATCH1_PHYS 0x01000000
#define LATCH1_VIRT 0xEA000000
#define MODEM_PHYS  0x04000000
#define MODEM_VIRT  0xEB000000
#define LATCH2_PHYS 0x08000000
#define LATCH2_VIRT 0xEC000000

static struct map_desc ams_delta_io_desc[] __initdata = {
    /* AMS_DELTA_LATCH1 */
    {
        .virtual    = LATCH1_VIRT,
        .pfn        = __phys_to_pfn(LATCH1_PHYS),
        .length     = 0x01000000,
        .type       = MT_DEVICE
    },
    /* AMS_DELTA_LATCH2 */
    {
        .virtual    = LATCH2_VIRT,
        .pfn        = __phys_to_pfn(LATCH2_PHYS),
        .length     = 0x01000000,
        .type       = MT_DEVICE
    },
    /* AMS_DELTA_MODEM */
    {
        .virtual    = MODEM_VIRT,
        .pfn        = __phys_to_pfn(MODEM_PHYS),
        .length     = 0x01000000,
        .type       = MT_DEVICE
    }
};

static struct omap_lcd_config ams_delta_lcd_config __initdata = {
    .ctrl_name  = "internal",
};

static struct omap_usb_config ams_delta_usb_config = {
    .register_host  = 1,
    .hmc_mode   = 16,
    .pins[0]    = 2,
};

#define LATCH1_GPIO_BASE    232
#define LATCH1_NGPIO        8

static struct resource latch1_resources[] = {
    [0] = {
        .name   = "dat",
        .start  = LATCH1_PHYS,
        .end    = LATCH1_PHYS + (LATCH1_NGPIO - 1) / 8,
        .flags  = IORESOURCE_MEM,
    },
};

static struct bgpio_pdata latch1_pdata = {
    .base   = LATCH1_GPIO_BASE,
    .ngpio  = LATCH1_NGPIO,
};

static struct platform_device latch1_gpio_device = {
    .name       = "basic-mmio-gpio",
    .id     = 0,
    .resource   = latch1_resources,
    .num_resources  = ARRAY_SIZE(latch1_resources),
    .dev        = {
        .platform_data  = &latch1_pdata,
    },
};

static struct resource latch2_resources[] = {
    [0] = {
        .name   = "dat",
        .start  = LATCH2_PHYS,
        .end    = LATCH2_PHYS + (AMS_DELTA_LATCH2_NGPIO - 1) / 8,
        .flags  = IORESOURCE_MEM,
    },
};

static struct bgpio_pdata latch2_pdata = {
    .base   = AMS_DELTA_LATCH2_GPIO_BASE,
    .ngpio  = AMS_DELTA_LATCH2_NGPIO,
};

static struct platform_device latch2_gpio_device = {
    .name       = "basic-mmio-gpio",
    .id     = 1,
    .resource   = latch2_resources,
    .num_resources  = ARRAY_SIZE(latch2_resources),
    .dev        = {
        .platform_data  = &latch2_pdata,
    },
};

static const struct gpio latch_gpios[] __initconst = {
    {
        .gpio   = LATCH1_GPIO_BASE + 6,
        .flags  = GPIOF_OUT_INIT_LOW,
        .label  = "dockit1",
    },
    {
        .gpio   = LATCH1_GPIO_BASE + 7,
        .flags  = GPIOF_OUT_INIT_LOW,
        .label  = "dockit2",
    },
    {
        .gpio   = AMS_DELTA_GPIO_PIN_SCARD_RSTIN,
        .flags  = GPIOF_OUT_INIT_LOW,
        .label  = "scard_rstin",
    },
    {
        .gpio   = AMS_DELTA_GPIO_PIN_SCARD_CMDVCC,
        .flags  = GPIOF_OUT_INIT_LOW,
        .label  = "scard_cmdvcc",
    },
    {
        .gpio   = AMS_DELTA_GPIO_PIN_MODEM_CODEC,
        .flags  = GPIOF_OUT_INIT_LOW,
        .label  = "modem_codec",
    },
    {
        .gpio   = AMS_DELTA_LATCH2_GPIO_BASE + 14,
        .flags  = GPIOF_OUT_INIT_LOW,
        .label  = "hookflash1",
    },
    {
        .gpio   = AMS_DELTA_LATCH2_GPIO_BASE + 15,
        .flags  = GPIOF_OUT_INIT_LOW,
        .label  = "hookflash2",
    },
};

static struct regulator_consumer_supply modem_nreset_consumers[] = {
    REGULATOR_SUPPLY("RESET#", "serial8250.1"),
    REGULATOR_SUPPLY("POR", "cx20442-codec"),
};

static struct regulator_init_data modem_nreset_data = {
    .constraints        = {
        .valid_ops_mask     = REGULATOR_CHANGE_STATUS,
        .boot_on        = 1,
    },
    .num_consumer_supplies  = ARRAY_SIZE(modem_nreset_consumers),
    .consumer_supplies  = modem_nreset_consumers,
};

static struct fixed_voltage_config modem_nreset_config = {
    .supply_name        = "modem_nreset",
    .microvolts     = 3300000,
    .gpio           = AMS_DELTA_GPIO_PIN_MODEM_NRESET,
    .startup_delay      = 25000,
    .enable_high        = 1,
    .enabled_at_boot    = 1,
    .init_data      = &modem_nreset_data,
};

static struct platform_device modem_nreset_device = {
    .name   = "reg-fixed-voltage",
    .id = -1,
    .dev    = {
        .platform_data  = &modem_nreset_config,
    },
};

struct modem_private_data {
    struct regulator *regulator;
};

static struct modem_private_data modem_priv;

void ams_delta_latch_write(int base, int ngpio, u16 mask, u16 value)
{
    int bit = 0;
    u16 bitpos = 1 << bit;

    for (; bit < ngpio; bit++, bitpos = bitpos << 1) {
        if (!(mask & bitpos))
            continue;
        else
            gpio_set_value(base + bit, (value & bitpos) != 0);
    }
}
EXPORT_SYMBOL(ams_delta_latch_write);

static struct resource ams_delta_nand_resources[] = {
    [0] = {
        .start  = OMAP1_MPUIO_BASE,
        .end    = OMAP1_MPUIO_BASE +
                OMAP_MPUIO_IO_CNTL + sizeof(u32) - 1,
        .flags  = IORESOURCE_MEM,
    },
};

static struct platform_device ams_delta_nand_device = {
    .name   = "ams-delta-nand",
    .id = -1,
    .num_resources  = ARRAY_SIZE(ams_delta_nand_resources),
    .resource   = ams_delta_nand_resources,
};

static struct resource ams_delta_kp_resources[] = {
    [0] = {
        .start  = INT_KEYBOARD,
        .end    = INT_KEYBOARD,
        .flags  = IORESOURCE_IRQ,
    },
};

static const struct matrix_keymap_data ams_delta_keymap_data = {
    .keymap     = ams_delta_keymap,
    .keymap_size    = ARRAY_SIZE(ams_delta_keymap),
};

static struct omap_kp_platform_data ams_delta_kp_data = {
    .rows       = 8,
    .cols       = 8,
    .keymap_data    = &ams_delta_keymap_data,
    .delay      = 9,
};

static struct platform_device ams_delta_kp_device = {
    .name       = "omap-keypad",
    .id     = -1,
    .dev        = {
        .platform_data = &ams_delta_kp_data,
    },
    .num_resources  = ARRAY_SIZE(ams_delta_kp_resources),
    .resource   = ams_delta_kp_resources,
};

static struct platform_device ams_delta_lcd_device = {
    .name   = "lcd_ams_delta",
    .id = -1,
};

static const struct gpio_led gpio_leds[] __initconst = {
    {
        .name        = "camera",
        .gpio        = LATCH1_GPIO_BASE + 0,
        .default_state   = LEDS_GPIO_DEFSTATE_OFF,
#ifdef CONFIG_LEDS_TRIGGERS
        .default_trigger = "ams_delta_camera",
#endif
    },
    {
        .name        = "advert",
        .gpio        = LATCH1_GPIO_BASE + 1,
        .default_state   = LEDS_GPIO_DEFSTATE_OFF,
    },
    {
        .name        = "email",
        .gpio        = LATCH1_GPIO_BASE + 2,
        .default_state   = LEDS_GPIO_DEFSTATE_OFF,
    },
    {
        .name        = "handsfree",
        .gpio        = LATCH1_GPIO_BASE + 3,
        .default_state   = LEDS_GPIO_DEFSTATE_OFF,
    },
    {
        .name        = "voicemail",
        .gpio        = LATCH1_GPIO_BASE + 4,
        .default_state   = LEDS_GPIO_DEFSTATE_OFF,
    },
    {
        .name        = "voice",
        .gpio        = LATCH1_GPIO_BASE + 5,
        .default_state   = LEDS_GPIO_DEFSTATE_OFF,
    },
};

static const struct gpio_led_platform_data leds_pdata __initconst = {
    .leds       = gpio_leds,
    .num_leds   = ARRAY_SIZE(gpio_leds),
};

static struct i2c_board_info ams_delta_camera_board_info[] = {
    {
        I2C_BOARD_INFO("ov6650", 0x60),
    },
};

#ifdef CONFIG_LEDS_TRIGGERS
DEFINE_LED_TRIGGER(ams_delta_camera_led_trigger);

static int ams_delta_camera_power(struct device *dev, int power)
{
    /*
     * turn on camera LED
     */
    if (power)
        led_trigger_event(ams_delta_camera_led_trigger, LED_FULL);
    else
        led_trigger_event(ams_delta_camera_led_trigger, LED_OFF);
    return 0;
}
#else
#define ams_delta_camera_power  NULL
#endif

static struct soc_camera_link ams_delta_iclink = {
    .bus_id         = 0,    /* OMAP1 SoC camera bus */
    .i2c_adapter_id = 1,
    .board_info     = &ams_delta_camera_board_info[0],
    .module_name    = "ov6650",
    .power      = ams_delta_camera_power,
};

static struct platform_device ams_delta_camera_device = {
    .name   = "soc-camera-pdrv",
    .id     = 0,
    .dev    = {
        .platform_data = &ams_delta_iclink,
    },
};

static struct omap1_cam_platform_data ams_delta_camera_platform_data = {
    .camexclk_khz   = 12000,    /* default 12MHz clock, no extra DPLL */
    .lclk_khz_max   = 1334,     /* results in 5fps CIF, 10fps QCIF */
};

static struct platform_device ams_delta_audio_device = {
    .name   = "ams-delta-audio",
    .id     = -1,
};

static struct platform_device cx20442_codec_device = {
    .name   = "cx20442-codec",
    .id     = -1,
};

static struct platform_device *ams_delta_devices[] __initdata = {
    &latch1_gpio_device,
    &latch2_gpio_device,
    &ams_delta_kp_device,
    &ams_delta_camera_device,
    &ams_delta_audio_device,
};

static struct platform_device *late_devices[] __initdata = {
    &ams_delta_nand_device,
    &ams_delta_lcd_device,
    &cx20442_codec_device,
};

static void __init ams_delta_init(void)
{
    /* mux pins for uarts */
    omap_cfg_reg(UART1_TX);
    omap_cfg_reg(UART1_RTS);

    /* parallel camera interface */
    omap_cfg_reg(H19_1610_CAM_EXCLK);
    omap_cfg_reg(J15_1610_CAM_LCLK);
    omap_cfg_reg(L18_1610_CAM_VS);
    omap_cfg_reg(L15_1610_CAM_HS);
    omap_cfg_reg(L19_1610_CAM_D0);
    omap_cfg_reg(K14_1610_CAM_D1);
    omap_cfg_reg(K15_1610_CAM_D2);
    omap_cfg_reg(K19_1610_CAM_D3);
    omap_cfg_reg(K18_1610_CAM_D4);
    omap_cfg_reg(J14_1610_CAM_D5);
    omap_cfg_reg(J19_1610_CAM_D6);
    omap_cfg_reg(J18_1610_CAM_D7);

    omap_serial_init();
    omap_register_i2c_bus(1, 100, NULL, 0);

    omap1_usb_init(&ams_delta_usb_config);
    omap1_set_camera_info(&ams_delta_camera_platform_data);
#ifdef CONFIG_LEDS_TRIGGERS
    led_trigger_register_simple("ams_delta_camera",
            &ams_delta_camera_led_trigger);
#endif
    gpio_led_register_device(-1, &leds_pdata);
    platform_add_devices(ams_delta_devices, ARRAY_SIZE(ams_delta_devices));

    ams_delta_init_fiq();

    omap_writew(omap_readw(ARM_RSTCT1) | 0x0004, ARM_RSTCT1);

    omapfb_set_lcd_config(&ams_delta_lcd_config);
}

static void modem_pm(struct uart_port *port, unsigned int state, unsigned old)
{
    struct modem_private_data *priv = port->private_data;

    if (IS_ERR(priv->regulator))
        return;

    if (state == old)
        return;

    if (state == 0)
        regulator_enable(priv->regulator);
    else if (old == 0)
        regulator_disable(priv->regulator);
}

static struct plat_serial8250_port ams_delta_modem_ports[] = {
    {
        .membase    = IOMEM(MODEM_VIRT),
        .mapbase    = MODEM_PHYS,
        .irq        = -EINVAL, /* changed later */
        .flags      = UPF_BOOT_AUTOCONF,
        .irqflags   = IRQF_TRIGGER_RISING,
        .iotype     = UPIO_MEM,
        .regshift   = 1,
        .uartclk    = BASE_BAUD * 16,
        .pm     = modem_pm,
        .private_data   = &modem_priv,
    },
    { },
};

static struct platform_device ams_delta_modem_device = {
    .name   = "serial8250",
    .id = PLAT8250_DEV_PLATFORM1,
    .dev        = {
        .platform_data = ams_delta_modem_ports,
    },
};

static int __init late_init(void)
{
    int err;

    if (!machine_is_ams_delta())
        return -ENODEV;

    err = gpio_request_array(latch_gpios, ARRAY_SIZE(latch_gpios));
    if (err) {
        pr_err("Couldn't take over latch1/latch2 GPIO pins\n");
        return err;
    }

    platform_add_devices(late_devices, ARRAY_SIZE(late_devices));

    err = platform_device_register(&modem_nreset_device);
    if (err) {
        pr_err("Couldn't register the modem regulator device\n");
        return err;
    }

    omap_cfg_reg(M14_1510_GPIO2);
    ams_delta_modem_ports[0].irq =
            gpio_to_irq(AMS_DELTA_GPIO_PIN_MODEM_IRQ);

    err = gpio_request(AMS_DELTA_GPIO_PIN_MODEM_IRQ, "modem");
    if (err) {
        pr_err("Couldn't request gpio pin for modem\n");
        return err;
    }
    gpio_direction_input(AMS_DELTA_GPIO_PIN_MODEM_IRQ);

    /* Initialize the modem_nreset regulator consumer before use */
    modem_priv.regulator = ERR_PTR(-ENODEV);

    ams_delta_latch2_write(AMS_DELTA_LATCH2_MODEM_CODEC,
            AMS_DELTA_LATCH2_MODEM_CODEC);

    err = platform_device_register(&ams_delta_modem_device);
    if (err)
        goto gpio_free;

    /*
     * Once the modem device is registered, the modem_nreset
     * regulator can be requested on behalf of that device.
     */
    modem_priv.regulator = regulator_get(&ams_delta_modem_device.dev,
            "RESET#");
    if (IS_ERR(modem_priv.regulator)) {
        err = PTR_ERR(modem_priv.regulator);
        goto unregister;
    }
    return 0;

unregister:
    platform_device_unregister(&ams_delta_modem_device);
gpio_free:
    gpio_free(AMS_DELTA_GPIO_PIN_MODEM_IRQ);
    return err;
}

static void __init ams_delta_init_late(void)
{
    omap1_init_late();
    late_init();
}

static void __init ams_delta_map_io(void)
{
    omap15xx_map_io();
    iotable_init(ams_delta_io_desc, ARRAY_SIZE(ams_delta_io_desc));
}

MACHINE_START(AMS_DELTA, "Amstrad E3 (Delta)")
    /* Maintainer: Jonathan McDowell <[email protected]> */
    .atag_offset    = 0x100,
    .map_io     = ams_delta_map_io,
    .init_early = omap1_init_early,
    .reserve    = omap_reserve,
    .init_irq   = omap1_init_irq,
    .init_machine   = ams_delta_init,
    .init_late  = ams_delta_init_late,
    .timer      = &omap1_timer,
    .restart    = omap1_restart,
MACHINE_END