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treo680.c

/*
 * Hardware definitions for Palm Treo 680
 *
 * Author:     Tomas Cech <sleep_walker@suse.cz>
 *
 * 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.
 *
 * (find more info at www.hackndev.com)
 *
 */

#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/irq.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <linux/pda_power.h>
#include <linux/pwm_backlight.h>
#include <linux/gpio.h>
#include <linux/wm97xx_batt.h>
#include <linux/power_supply.h>
#include <linux/sysdev.h>
#include <linux/w1-gpio.h>

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

#include <mach/pxa27x.h>
#include <mach/pxa27x-udc.h>
#include <mach/audio.h>
#include <mach/treo680.h>
#include <mach/mmc.h>
#include <mach/pxafb.h>
#include <mach/irda.h>
#include <mach/pxa27x_keypad.h>
#include <mach/udc.h>
#include <mach/ohci.h>
#include <mach/pxa2xx-regs.h>
#include <mach/palmasoc.h>
#include <mach/camera.h>

#include <sound/pxa2xx-lib.h>

#include "generic.h"
#include "devices.h"

/******************************************************************************
 * Pin configuration
 ******************************************************************************/
static unsigned long treo680_pin_config[] __initdata = {
      /* MMC */
      GPIO32_MMC_CLK,
      GPIO92_MMC_DAT_0,
      GPIO109_MMC_DAT_1,
      GPIO110_MMC_DAT_2,
      GPIO111_MMC_DAT_3,
      GPIO112_MMC_CMD,
      GPIO33_GPIO,                        /* SD read only */
      GPIO113_GPIO,                       /* SD detect */

      /* AC97 */
      GPIO28_AC97_BITCLK,
      GPIO29_AC97_SDATA_IN_0,
      GPIO30_AC97_SDATA_OUT,
      GPIO31_AC97_SYNC,
      GPIO89_AC97_SYSCLK,
      GPIO95_AC97_nRESET,

      /* IrDA */
      GPIO46_FICP_RXD,
      GPIO47_FICP_TXD,

      /* PWM */
      GPIO16_PWM0_OUT,

      /* USB */
      GPIO1_GPIO | WAKEUP_ON_EDGE_BOTH,   /* usb detect */

      /* MATRIX KEYPAD */
      GPIO100_KP_MKIN_0 | WAKEUP_ON_LEVEL_HIGH,
      GPIO101_KP_MKIN_1,
      GPIO102_KP_MKIN_2,
      GPIO97_KP_MKIN_3,
      GPIO98_KP_MKIN_4,
      GPIO99_KP_MKIN_5,
      GPIO91_KP_MKIN_6,
      GPIO13_KP_MKIN_7,
      GPIO103_KP_MKOUT_0 | MFP_LPM_DRIVE_HIGH,
      GPIO104_KP_MKOUT_1,
      GPIO105_KP_MKOUT_2,
      GPIO106_KP_MKOUT_3,
      GPIO107_KP_MKOUT_4,
      GPIO108_KP_MKOUT_5,
      GPIO96_KP_MKOUT_6,
      GPIO93_KP_DKIN_0 | WAKEUP_ON_LEVEL_HIGH,  /* Hotsync button */

      /* LCD */
      GPIO58_LCD_LDD_0,
      GPIO59_LCD_LDD_1,
      GPIO60_LCD_LDD_2,
      GPIO61_LCD_LDD_3,
      GPIO62_LCD_LDD_4,
      GPIO63_LCD_LDD_5,
      GPIO64_LCD_LDD_6,
      GPIO65_LCD_LDD_7,
      GPIO66_LCD_LDD_8,
      GPIO67_LCD_LDD_9,
      GPIO68_LCD_LDD_10,
      GPIO69_LCD_LDD_11,
      GPIO70_LCD_LDD_12,
      GPIO71_LCD_LDD_13,
      GPIO72_LCD_LDD_14,
      GPIO73_LCD_LDD_15,
      GPIO74_LCD_FCLK,
      GPIO75_LCD_LCLK,
      GPIO76_LCD_PCLK,

      /* Quick Capture Interface */
      GPIO84_CIF_FV,
      GPIO85_CIF_LV,
      GPIO53_CIF_MCLK,
      GPIO54_CIF_PCLK,
      GPIO81_CIF_DD_0,
      GPIO55_CIF_DD_1,
      GPIO51_CIF_DD_2,
      GPIO50_CIF_DD_3,
      GPIO52_CIF_DD_4,
      GPIO48_CIF_DD_5,
      GPIO17_CIF_DD_6,
      GPIO12_CIF_DD_7,

      /* I2C */
      GPIO117_I2C_SCL,
      GPIO118_I2C_SDA,

      /* GSM */
      GPIO14_GPIO | WAKEUP_ON_EDGE_BOTH,  /* GSM host wake up */
      GPIO34_FFUART_RXD,
      GPIO35_FFUART_CTS,
      GPIO39_FFUART_TXD,
      GPIO41_FFUART_RTS,

      /* MISC. */
      GPIO0_GPIO | WAKEUP_ON_EDGE_BOTH,   /* external power detect */
      GPIO15_GPIO | WAKEUP_ON_EDGE_BOTH,  /* silent switch */
      GPIO116_GPIO,                       /* headphone detect */
      GPIO11_GPIO | WAKEUP_ON_EDGE_BOTH,  /* bluetooth host wake up */
};

/******************************************************************************
 * SD/MMC card controller
 ******************************************************************************/
static struct pxamci_platform_data treo680_mci_platform_data = {
      .ocr_mask         = MMC_VDD_32_33 | MMC_VDD_33_34,
      .gpio_card_detect = GPIO_NR_TREO680_SD_DETECT_N,
      .gpio_card_ro           = GPIO_NR_TREO680_SD_READONLY,
      .gpio_power       = GPIO_NR_TREO680_SD_POWER,
};

/******************************************************************************
 * GPIO keyboard
 ******************************************************************************/
static unsigned int treo680_matrix_keys[] = {
      KEY(0, 0, KEY_F8),            /* Red/Off/Power */
      KEY(0, 1, KEY_LEFT),
      KEY(0, 2, KEY_LEFTCTRL),      /* Alternate */
      KEY(0, 3, KEY_L),
      KEY(0, 4, KEY_A),
      KEY(0, 5, KEY_Q),
      KEY(0, 6, KEY_P),

      KEY(1, 0, KEY_RIGHTCTRL),     /* Menu */
      KEY(1, 1, KEY_RIGHT),
      KEY(1, 2, KEY_LEFTSHIFT),     /* Left shift */
      KEY(1, 3, KEY_Z),
      KEY(1, 4, KEY_S),
      KEY(1, 5, KEY_W),

      KEY(2, 0, KEY_F1),            /* Phone */
      KEY(2, 1, KEY_UP),
      KEY(2, 2, KEY_0),
      KEY(2, 3, KEY_X),
      KEY(2, 4, KEY_D),
      KEY(2, 5, KEY_E),

      KEY(3, 0, KEY_F10),           /* Calendar */
      KEY(3, 1, KEY_DOWN),
      KEY(3, 2, KEY_SPACE),
      KEY(3, 3, KEY_C),
      KEY(3, 4, KEY_F),
      KEY(3, 5, KEY_R),

      KEY(4, 0, KEY_F12),           /* Mail */
      KEY(4, 1, KEY_KPENTER),
      KEY(4, 2, KEY_RIGHTALT),      /* Alt */
      KEY(4, 3, KEY_V),
      KEY(4, 4, KEY_G),
      KEY(4, 5, KEY_T),

      KEY(5, 0, KEY_F9),            /* Home */
      KEY(5, 1, KEY_PAGEUP),        /* Side up */
      KEY(5, 2, KEY_DOT),
      KEY(5, 3, KEY_B),
      KEY(5, 4, KEY_H),
      KEY(5, 5, KEY_Y),

      KEY(6, 0, KEY_TAB),           /* Side Activate */
      KEY(6, 1, KEY_PAGEDOWN),      /* Side down */
      KEY(6, 2, KEY_ENTER),
      KEY(6, 3, KEY_N),
      KEY(6, 4, KEY_J),
      KEY(6, 5, KEY_U),

      KEY(7, 0, KEY_F6),            /* Green/Call */
      KEY(7, 1, KEY_O),
      KEY(7, 2, KEY_BACKSPACE),
      KEY(7, 3, KEY_M),
      KEY(7, 4, KEY_K),
      KEY(7, 5, KEY_I),
};

static struct pxa27x_keypad_platform_data treo680_keypad_platform_data = {
      .matrix_key_rows  = 8,
      .matrix_key_cols  = 7,
      .matrix_key_map         = treo680_matrix_keys,
      .matrix_key_map_size    = ARRAY_SIZE(treo680_matrix_keys),
      .direct_key_map         = { KEY_CONNECT },
      .direct_key_num         = 1,

      .debounce_interval      = 30,
};

/******************************************************************************
 * aSoC audio
 ******************************************************************************/

static pxa2xx_audio_ops_t treo680_ac97_pdata = {
      .reset_gpio = 95,
};

/******************************************************************************
 * Backlight
 ******************************************************************************/
static int treo680_backlight_init(struct device *dev)
{
      int ret;

      ret = gpio_request(GPIO_NR_TREO680_BL_POWER, "BL POWER");
      if (ret)
            goto err;
      ret = gpio_direction_output(GPIO_NR_TREO680_BL_POWER, 0);
      if (ret)
            goto err2;

      return 0;

err2:
      gpio_free(GPIO_NR_TREO680_BL_POWER);
err:
      return ret;
}

static int treo680_backlight_notify(int brightness)
{
      gpio_set_value(GPIO_NR_TREO680_BL_POWER, brightness);
      return TREO680_MAX_INTENSITY - brightness;
};

static void treo680_backlight_exit(struct device *dev)
{
      gpio_free(GPIO_NR_TREO680_BL_POWER);
}

static struct platform_pwm_backlight_data treo680_backlight_data = {
      .pwm_id           = 0,
      .max_brightness   = TREO680_MAX_INTENSITY,
      .dft_brightness   = TREO680_DEFAULT_INTENSITY,
      .pwm_period_ns    = TREO680_PERIOD_NS,
      .init       = treo680_backlight_init,
      .notify           = treo680_backlight_notify,
      .exit       = treo680_backlight_exit,
};

static struct platform_device treo680_backlight = {
      .name = "pwm-backlight",
      .dev  = {
            .parent           = &pxa27x_device_pwm0.dev,
            .platform_data    = &treo680_backlight_data,
      },
};

/******************************************************************************
 * IrDA
 ******************************************************************************/
static struct pxaficp_platform_data treo680_ficp_info = {
      .gpio_pwdown            = GPIO_NR_TREO680_IR_EN,
      .transceiver_cap  = IR_SIRMODE | IR_OFF,
};

/******************************************************************************
 * UDC
 ******************************************************************************/
static struct pxa2xx_udc_mach_info treo680_udc_info __initdata = {
      .gpio_vbus        = GPIO_NR_TREO680_USB_DETECT,
      .gpio_vbus_inverted     = 1,
      .gpio_pullup            = GPIO_NR_TREO680_USB_PULLUP,
};


/******************************************************************************
 * USB host
 ******************************************************************************/
static struct pxaohci_platform_data treo680_ohci_info = {
      .port_mode    = PMM_PERPORT_MODE,
      .flags        = ENABLE_PORT1 | ENABLE_PORT3,
      .power_budget = 0,
};

/******************************************************************************
 * Power supply
 ******************************************************************************/
static int power_supply_init(struct device *dev)
{
      int ret;

      ret = gpio_request(GPIO_NR_TREO680_POWER_DETECT, "CABLE_STATE_AC");
      if (ret)
            goto err1;
      ret = gpio_direction_input(GPIO_NR_TREO680_POWER_DETECT);
      if (ret)
            goto err2;

      return 0;

err2:
      gpio_free(GPIO_NR_TREO680_POWER_DETECT);
err1:
      return ret;
}

static int treo680_is_ac_online(void)
{
      return gpio_get_value(GPIO_NR_TREO680_POWER_DETECT);
}

static void power_supply_exit(struct device *dev)
{
      gpio_free(GPIO_NR_TREO680_POWER_DETECT);
}

static char *treo680_supplicants[] = {
      "main-battery",
};

static struct pda_power_pdata power_supply_info = {
      .init        = power_supply_init,
      .is_ac_online    = treo680_is_ac_online,
      .exit        = power_supply_exit,
      .supplied_to     = treo680_supplicants,
      .num_supplicants = ARRAY_SIZE(treo680_supplicants),
};

static struct platform_device power_supply = {
      .name = "pda-power",
      .id   = -1,
      .dev  = {
            .platform_data = &power_supply_info,
      },
};

/******************************************************************************
 * Vibra and LEDs
 ******************************************************************************/
static struct gpio_led gpio_leds[] = {
      {
            .name             = "treo680:vibra:vibra",
            .default_trigger  = "none",
            .gpio             = GPIO_NR_TREO680_VIBRATE_EN,
      },
      {
            .name             = "treo680:green:led",
            .default_trigger  = "mmc0",
            .gpio             = GPIO_NR_TREO680_GREEN_LED,
      },
      {
            .name             = "treo680:keybbl:keybbl",
            .default_trigger  = "none",
            .gpio             = GPIO_NR_TREO680_KEYB_BL,
      },
};

static struct gpio_led_platform_data gpio_led_info = {
      .leds       = gpio_leds,
      .num_leds   = ARRAY_SIZE(gpio_leds),
};

static struct platform_device treo680_leds = {
      .name   = "leds-gpio",
      .id     = -1,
      .dev    = {
            .platform_data  = &gpio_led_info,
      }
};


/******************************************************************************
 * Framebuffer
 ******************************************************************************/
/* TODO: add support for 324x324 */
static struct pxafb_mode_info treo680_lcd_modes[] = {
{
      .pixclock         = 86538,
      .xres             = 320,
      .yres             = 320,
      .bpp              = 16,

      .left_margin            = 20,
      .right_margin           = 8,
      .upper_margin           = 8,
      .lower_margin           = 5,

      .hsync_len        = 4,
      .vsync_len        = 1,
},
};

static void treo680_lcd_power(int on, struct fb_var_screeninfo *info)
{
      gpio_set_value(GPIO_NR_TREO680_BL_POWER, on);
}

static struct pxafb_mach_info treo680_lcd_screen = {
      .modes            = treo680_lcd_modes,
      .num_modes  = ARRAY_SIZE(treo680_lcd_modes),
      .lcd_conn   = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
};

/******************************************************************************
 * Power management - standby
 ******************************************************************************/
static void __init treo680_pm_init(void)
{
      static u32 resume[] = {
            0xe3a00101, /* mov      r0,   #0x40000000 */
            0xe380060f, /* orr      r0, r0, #0x00f00000 */
            0xe590f008, /* ldr      pc, [r0, #0x08] */
      };

      /* this is where the bootloader jumps */
      memcpy(phys_to_virt(TREO680_STR_BASE), resume, sizeof(resume));
}

/******************************************************************************
 * Machine init
 ******************************************************************************/
static struct platform_device *devices[] __initdata = {
      &treo680_backlight,
      &treo680_leds,
      &power_supply,
};

/* setup udc GPIOs initial state */
static void __init treo680_udc_init(void)
{
      if (!gpio_request(GPIO_NR_TREO680_USB_PULLUP, "UDC Vbus")) {
            gpio_direction_output(GPIO_NR_TREO680_USB_PULLUP, 1);
            gpio_free(GPIO_NR_TREO680_USB_PULLUP);
      }
}

static void __init treo680_lcd_power_init(void)
{
      int ret;

      ret = gpio_request(GPIO_NR_TREO680_LCD_POWER, "LCD POWER");
      if (ret) {
            pr_err("Treo680: LCD power GPIO request failed!\n");
            return;
      }

      ret = gpio_direction_output(GPIO_NR_TREO680_LCD_POWER, 0);
      if (ret) {
            pr_err("Treo680: setting LCD power GPIO direction failed!\n");
            gpio_free(GPIO_NR_TREO680_LCD_POWER);
            return;
      }

      treo680_lcd_screen.pxafb_lcd_power = treo680_lcd_power;
}

static void __init treo680_init(void)
{
      treo680_pm_init();
      pxa2xx_mfp_config(ARRAY_AND_SIZE(treo680_pin_config));
      pxa_set_keypad_info(&treo680_keypad_platform_data);
      treo680_lcd_power_init();
      set_pxa_fb_info(&treo680_lcd_screen);
      pxa_set_mci_info(&treo680_mci_platform_data);
      treo680_udc_init();
      pxa_set_udc_info(&treo680_udc_info);
      pxa_set_ac97_info(&treo680_ac97_pdata);
      pxa_set_ficp_info(&treo680_ficp_info);
      pxa_set_ohci_info(&treo680_ohci_info);

      platform_add_devices(devices, ARRAY_SIZE(devices));
}

MACHINE_START(TREO680, "Palm Treo 680")
      .phys_io    = TREO680_PHYS_IO_START,
      .io_pg_offst      = io_p2v(0x40000000),
      .boot_params      = 0xa0000100,
      .map_io           = pxa_map_io,
      .init_irq   = pxa27x_init_irq,
      .timer            = &pxa_timer,
      .init_machine     = treo680_init,
MACHINE_END

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