/*
   * Hardware definitions for Palm Tungsten|E2
   *
   * Author:
   *	Carlos Eduardo Medaglia Dyonisio <cadu@nerdfeliz.com>
   *
   * Rewrite for mainline:
   *	Marek Vasut <marek.vasut@gmail.com>
   *
   * 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.h>
  #include <linux/power_supply.h>
  #include <linux/usb/gpio_vbus.h>
  
  #include <asm/mach-types.h>
  #include <asm/mach/arch.h>
  #include <asm/mach/map.h>
  
  #include <mach/pxa25x.h>
  #include <mach/audio.h>
  #include <mach/palmte2.h>
  #include <linux/platform_data/mmc-pxamci.h>
  #include <linux/platform_data/video-pxafb.h>
  #include <linux/platform_data/irda-pxaficp.h>
  #include <mach/udc.h>
  #include <linux/platform_data/asoc-palm27x.h>
  
  #include "generic.h"
  #include "devices.h"
  
  /******************************************************************************
   * Pin configuration
   ******************************************************************************/
  static unsigned long palmte2_pin_config[] __initdata = {
  	/* MMC */
  	GPIO6_MMC_CLK,
  	GPIO8_MMC_CS0,
  	GPIO10_GPIO,	/* SD detect */
  	GPIO55_GPIO,	/* SD power */
  	GPIO51_GPIO,	/* SD r/o switch */
  
  	/* AC97 */
  	GPIO28_AC97_BITCLK,
  	GPIO29_AC97_SDATA_IN_0,
  	GPIO30_AC97_SDATA_OUT,
  	GPIO31_AC97_SYNC,
  
  	/* PWM */
  	GPIO16_PWM0_OUT,
  
  	/* USB */
  	GPIO15_GPIO,	/* usb detect */
  	GPIO53_GPIO,	/* usb power */
  
  	/* IrDA */
  	GPIO48_GPIO,	/* ir disable */
  	GPIO46_FICP_RXD,
  	GPIO47_FICP_TXD,
  
  	/* LCD */
  	GPIOxx_LCD_TFT_16BPP,
  
  	/* GPIO KEYS */
  	GPIO5_GPIO,	/* notes */
  	GPIO7_GPIO,	/* tasks */
  	GPIO11_GPIO,	/* calendar */
  	GPIO13_GPIO,	/* contacts */
  	GPIO14_GPIO,	/* center */
  	GPIO19_GPIO,	/* left */
  	GPIO20_GPIO,	/* right */
  	GPIO21_GPIO,	/* down */
  	GPIO22_GPIO,	/* up */
  
  	/* MISC */
  	GPIO1_RST,	/* reset */
  	GPIO4_GPIO,	/* Hotsync button */
  	GPIO9_GPIO,	/* power detect */
  	GPIO15_GPIO,	/* earphone detect */
  	GPIO37_GPIO,	/* LCD power */
  	GPIO56_GPIO,	/* Backlight power */
  };
  
  /******************************************************************************
   * SD/MMC card controller
   ******************************************************************************/
  static struct pxamci_platform_data palmte2_mci_platform_data = {
  	.ocr_mask		= MMC_VDD_32_33 | MMC_VDD_33_34,
  	.gpio_card_detect	= GPIO_NR_PALMTE2_SD_DETECT_N,
  	.gpio_card_ro		= GPIO_NR_PALMTE2_SD_READONLY,
  	.gpio_power		= GPIO_NR_PALMTE2_SD_POWER,
  };
  
  #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
  /******************************************************************************
   * GPIO keys
   ******************************************************************************/
  static struct gpio_keys_button palmte2_pxa_buttons[] = {
  	{KEY_F1,	GPIO_NR_PALMTE2_KEY_CONTACTS,	1, "Contacts" },
  	{KEY_F2,	GPIO_NR_PALMTE2_KEY_CALENDAR,	1, "Calendar" },
  	{KEY_F3,	GPIO_NR_PALMTE2_KEY_TASKS,	1, "Tasks" },
  	{KEY_F4,	GPIO_NR_PALMTE2_KEY_NOTES,	1, "Notes" },
  	{KEY_ENTER,	GPIO_NR_PALMTE2_KEY_CENTER,	1, "Center" },
  	{KEY_LEFT,	GPIO_NR_PALMTE2_KEY_LEFT,	1, "Left" },
  	{KEY_RIGHT,	GPIO_NR_PALMTE2_KEY_RIGHT,	1, "Right" },
  	{KEY_DOWN,	GPIO_NR_PALMTE2_KEY_DOWN,	1, "Down" },
  	{KEY_UP,	GPIO_NR_PALMTE2_KEY_UP,		1, "Up" },
  };
  
  static struct gpio_keys_platform_data palmte2_pxa_keys_data = {
  	.buttons	= palmte2_pxa_buttons,
  	.nbuttons	= ARRAY_SIZE(palmte2_pxa_buttons),
  };
  
  static struct platform_device palmte2_pxa_keys = {
  	.name	= "gpio-keys",
  	.id	= -1,
  	.dev	= {
  		.platform_data = &palmte2_pxa_keys_data,
  	},
  };
  #endif
  
  /******************************************************************************
   * Backlight
   ******************************************************************************/
  static struct gpio palmte_bl_gpios[] = {
  	{ GPIO_NR_PALMTE2_BL_POWER, GPIOF_INIT_LOW, "Backlight power" },
  	{ GPIO_NR_PALMTE2_LCD_POWER, GPIOF_INIT_LOW, "LCD power" },
  };
  
  static int palmte2_backlight_init(struct device *dev)
  {
  	return gpio_request_array(ARRAY_AND_SIZE(palmte_bl_gpios));
  }
  
  static int palmte2_backlight_notify(struct device *dev, int brightness)
  {
  	gpio_set_value(GPIO_NR_PALMTE2_BL_POWER, brightness);
  	gpio_set_value(GPIO_NR_PALMTE2_LCD_POWER, brightness);
  	return brightness;
  }
  
  static void palmte2_backlight_exit(struct device *dev)
  {
  	gpio_free_array(ARRAY_AND_SIZE(palmte_bl_gpios));
  }
  
  static struct platform_pwm_backlight_data palmte2_backlight_data = {
  	.pwm_id		= 0,
  	.max_brightness	= PALMTE2_MAX_INTENSITY,
  	.dft_brightness	= PALMTE2_MAX_INTENSITY,
  	.pwm_period_ns	= PALMTE2_PERIOD_NS,
  	.enable_gpio	= -1,
  	.init		= palmte2_backlight_init,
  	.notify		= palmte2_backlight_notify,
  	.exit		= palmte2_backlight_exit,
  };
  
  static struct platform_device palmte2_backlight = {
  	.name	= "pwm-backlight",
  	.dev	= {
  		.parent		= &pxa25x_device_pwm0.dev,
  		.platform_data	= &palmte2_backlight_data,
  	},
  };
  
  /******************************************************************************
   * IrDA
   ******************************************************************************/
  static struct pxaficp_platform_data palmte2_ficp_platform_data = {
  	.gpio_pwdown		= GPIO_NR_PALMTE2_IR_DISABLE,
  	.transceiver_cap	= IR_SIRMODE | IR_OFF,
  };
  
  /******************************************************************************
   * UDC
   ******************************************************************************/
  static struct gpio_vbus_mach_info palmte2_udc_info = {
  	.gpio_vbus		= GPIO_NR_PALMTE2_USB_DETECT_N,
  	.gpio_vbus_inverted	= 1,
  	.gpio_pullup		= GPIO_NR_PALMTE2_USB_PULLUP,
  };
  
  static struct platform_device palmte2_gpio_vbus = {
  	.name	= "gpio-vbus",
  	.id	= -1,
  	.dev	= {
  		.platform_data	= &palmte2_udc_info,
  	},
  };
  
  /******************************************************************************
   * Power supply
   ******************************************************************************/
  static int power_supply_init(struct device *dev)
  {
  	int ret;
  
  	ret = gpio_request(GPIO_NR_PALMTE2_POWER_DETECT, "CABLE_STATE_AC");
  	if (ret)
  		goto err1;
  	ret = gpio_direction_input(GPIO_NR_PALMTE2_POWER_DETECT);
  	if (ret)
  		goto err2;
  
  	return 0;
  
  err2:
  	gpio_free(GPIO_NR_PALMTE2_POWER_DETECT);
  err1:
  	return ret;
  }
  
  static int palmte2_is_ac_online(void)
  {
  	return gpio_get_value(GPIO_NR_PALMTE2_POWER_DETECT);
  }
  
  static void power_supply_exit(struct device *dev)
  {
  	gpio_free(GPIO_NR_PALMTE2_POWER_DETECT);
  }
  
  static char *palmte2_supplicants[] = {
  	"main-battery",
  };
  
  static struct pda_power_pdata power_supply_info = {
  	.init            = power_supply_init,
  	.is_ac_online    = palmte2_is_ac_online,
  	.exit            = power_supply_exit,
  	.supplied_to     = palmte2_supplicants,
  	.num_supplicants = ARRAY_SIZE(palmte2_supplicants),
  };
  
  static struct platform_device power_supply = {
  	.name = "pda-power",
  	.id   = -1,
  	.dev  = {
  		.platform_data = &power_supply_info,
  	},
  };
  
  /******************************************************************************
   * WM97xx audio, battery
   ******************************************************************************/
  static struct wm97xx_batt_pdata palmte2_batt_pdata = {
  	.batt_aux	= WM97XX_AUX_ID3,
  	.temp_aux	= WM97XX_AUX_ID2,
  	.charge_gpio	= -1,
  	.max_voltage	= PALMTE2_BAT_MAX_VOLTAGE,
  	.min_voltage	= PALMTE2_BAT_MIN_VOLTAGE,
  	.batt_mult	= 1000,
  	.batt_div	= 414,
  	.temp_mult	= 1,
  	.temp_div	= 1,
  	.batt_tech	= POWER_SUPPLY_TECHNOLOGY_LIPO,
  	.batt_name	= "main-batt",
  };
  
  static struct wm97xx_pdata palmte2_wm97xx_pdata = {
  	.batt_pdata	= &palmte2_batt_pdata,
  };
  
  static pxa2xx_audio_ops_t palmte2_ac97_pdata = {
  	.codec_pdata	= { &palmte2_wm97xx_pdata, },
  };
  
  static struct palm27x_asoc_info palmte2_asoc_pdata = {
  	.jack_gpio	= GPIO_NR_PALMTE2_EARPHONE_DETECT,
  };
  
  static struct platform_device palmte2_asoc = {
  	.name = "palm27x-asoc",
  	.id   = -1,
  	.dev  = {
  		.platform_data = &palmte2_asoc_pdata,
  	},
  };
  
  /******************************************************************************
   * Framebuffer
   ******************************************************************************/
  static struct pxafb_mode_info palmte2_lcd_modes[] = {
  {
  	.pixclock	= 77757,
  	.xres		= 320,
  	.yres		= 320,
  	.bpp		= 16,
  
  	.left_margin	= 28,
  	.right_margin	= 7,
  	.upper_margin	= 7,
  	.lower_margin	= 5,
  
  	.hsync_len	= 4,
  	.vsync_len	= 1,
  },
  };
  
  static struct pxafb_mach_info palmte2_lcd_screen = {
  	.modes		= palmte2_lcd_modes,
  	.num_modes	= ARRAY_SIZE(palmte2_lcd_modes),
  	.lcd_conn	= LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
  };
  
  /******************************************************************************
   * Machine init
   ******************************************************************************/
  static struct platform_device *devices[] __initdata = {
  #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
  	&palmte2_pxa_keys,
  #endif
  	&palmte2_backlight,
  	&power_supply,
  	&palmte2_asoc,
  	&palmte2_gpio_vbus,
  };
  
  /* setup udc GPIOs initial state */
  static void __init palmte2_udc_init(void)
  {
  	if (!gpio_request(GPIO_NR_PALMTE2_USB_PULLUP, "UDC Vbus")) {
  		gpio_direction_output(GPIO_NR_PALMTE2_USB_PULLUP, 1);
  		gpio_free(GPIO_NR_PALMTE2_USB_PULLUP);
  	}
  }
  
  static void __init palmte2_init(void)
  {
  	pxa2xx_mfp_config(ARRAY_AND_SIZE(palmte2_pin_config));
  
  	pxa_set_ffuart_info(NULL);
  	pxa_set_btuart_info(NULL);
  	pxa_set_stuart_info(NULL);
  
  	pxa_set_fb_info(NULL, &palmte2_lcd_screen);
  	pxa_set_mci_info(&palmte2_mci_platform_data);
  	palmte2_udc_init();
  	pxa_set_ac97_info(&palmte2_ac97_pdata);
  	pxa_set_ficp_info(&palmte2_ficp_platform_data);
  
  	platform_add_devices(devices, ARRAY_SIZE(devices));
  }
  
  MACHINE_START(PALMTE2, "Palm Tungsten|E2")
  	.atag_offset	= 0x100,
  	.map_io		= pxa25x_map_io,
  	.nr_irqs	= PXA_NR_IRQS,
  	.init_irq	= pxa25x_init_irq,
  	.handle_irq	= pxa25x_handle_irq,
  	.init_time	= pxa_timer_init,
  	.init_machine	= palmte2_init,
  	.restart	= pxa_restart,
  MACHINE_END