linux/arch/arm/mach-pxa/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 int treo680_mci_init(struct device *dev,
		irq_handler_t treo680_detect_int, void *data)
{
	int err = 0;

	/* Setup an interrupt for detecting card insert/remove events */
	err = gpio_request(GPIO_NR_TREO680_SD_DETECT_N, "SD IRQ");

	if (err)
		goto err;

	err = gpio_direction_input(GPIO_NR_TREO680_SD_DETECT_N);
	if (err)
		goto err2;

	err = request_irq(gpio_to_irq(GPIO_NR_TREO680_SD_DETECT_N),
			treo680_detect_int, IRQF_DISABLED | IRQF_SAMPLE_RANDOM |
			IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
			"SD/MMC card detect", data);

	if (err) {
		dev_err(dev, "%s: cannot request SD/MMC card detect IRQ\n",
			     __func__);
		goto err2;
	}

	err = gpio_request(GPIO_NR_TREO680_SD_POWER, "SD_POWER");
	if (err)
		goto err3;

	err = gpio_direction_output(GPIO_NR_TREO680_SD_POWER, 1);
	if (err)
		goto err4;

	err = gpio_request(GPIO_NR_TREO680_SD_READONLY, "SD_READONLY");
	if (err)
		goto err4;

	err = gpio_direction_input(GPIO_NR_TREO680_SD_READONLY);
	if (err)
		goto err5;

	return 0;

err5:
	gpio_free(GPIO_NR_TREO680_SD_READONLY);
err4:
	gpio_free(GPIO_NR_TREO680_SD_POWER);
err3:
	free_irq(gpio_to_irq(GPIO_NR_TREO680_SD_DETECT_N), data);
err2:
	gpio_free(GPIO_NR_TREO680_SD_DETECT_N);
err:
	return err;
}

static void treo680_mci_exit(struct device *dev, void *data)
{
	gpio_free(GPIO_NR_TREO680_SD_READONLY);
	gpio_free(GPIO_NR_TREO680_SD_POWER);
	free_irq(gpio_to_irq(GPIO_NR_TREO680_SD_DETECT_N), data);
	gpio_free(GPIO_NR_TREO680_SD_DETECT_N);
}

static void treo680_mci_power(struct device *dev, unsigned int vdd)
{
	struct pxamci_platform_data *p_d = dev->platform_data;
	gpio_set_value(GPIO_NR_TREO680_SD_POWER, p_d->ocr_mask & (1 << vdd));
}

static int treo680_mci_get_ro(struct device *dev)
{
	return gpio_get_value(GPIO_NR_TREO680_SD_READONLY);
}

static struct pxamci_platform_data treo680_mci_platform_data = {
	.ocr_mask	= MMC_VDD_32_33 | MMC_VDD_33_34,
	.setpower	= treo680_mci_power,
	.get_ro		= treo680_mci_get_ro,
	.init 		= treo680_mci_init,
	.exit		= treo680_mci_exit,
};

/******************************************************************************
 * 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;
	ret = gpio_request(GPIO_NR_TREO680_LCD_POWER, "LCD POWER");
	if (ret)
		goto err2;
	ret = gpio_direction_output(GPIO_NR_TREO680_LCD_POWER, 0);
	if (ret)
		goto err3;

	return 0;
err3:
	gpio_free(GPIO_NR_TREO680_LCD_POWER);
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);
	gpio_free(GPIO_NR_TREO680_LCD_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 void treo680_transceiver_mode(struct device *dev, int mode)
{
	gpio_set_value(GPIO_NR_TREO680_IR_EN, mode & IR_OFF);
	pxa2xx_transceiver_mode(dev, mode);
}

static int treo680_irda_startup(struct device *dev)
{
	int err;

	err = gpio_request(GPIO_NR_TREO680_IR_EN, "Ir port disable");
	if (err)
		goto err1;

	err = gpio_direction_output(GPIO_NR_TREO680_IR_EN, 1);
	if (err)
		goto err2;

	return 0;

err2:
	dev_err(dev, "treo680_irda: cannot change IR gpio direction\n");
	gpio_free(GPIO_NR_TREO680_IR_EN);
err1:
	dev_err(dev, "treo680_irda: cannot allocate IR gpio\n");
	return err;
}

static void treo680_irda_shutdown(struct device *dev)
{
	gpio_free(GPIO_NR_TREO680_IR_EN);
}

static struct pxaficp_platform_data treo680_ficp_info = {
	.transceiver_cap  = IR_FIRMODE | IR_SIRMODE | IR_OFF,
	.startup          = treo680_irda_startup,
	.shutdown         = treo680_irda_shutdown,
	.transceiver_mode = treo680_transceiver_mode,
};

/******************************************************************************
 * 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 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_init(void)
{
	treo680_pm_init();
	pxa2xx_mfp_config(ARRAY_AND_SIZE(treo680_pin_config));
	pxa_set_keypad_info(&treo680_keypad_platform_data);
	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