aiot/efElectricAgingTrendMining/analysisOfEnvironmentalFactors/environmentalHumidityAnalysis.c

/*
 * linux/arch/arm/mach-omap2/board-ldp.c
 *
 * Copyright (C) 2008 Texas Instruments Inc.
 * Nishant Kamat <nskamat@ti.com>
 *
 * Modified from mach-omap2/board-3430sdp.c
 *
 * 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/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/input.h>
#include <linux/input/matrix_keypad.h>
#include <linux/gpio_keys.h>
#include <linux/workqueue.h>
#include <linux/err.h>
#include <linux/clk.h>
#include <linux/spi/spi.h>
#include <linux/regulator/fixed.h>
#include <linux/regulator/machine.h>
#include <linux/i2c/twl.h>
#include <linux/io.h>
#include <linux/smsc911x.h>
#include <linux/mmc/host.h>
#include <linux/platform_data/spi-omap2-mcspi.h>

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

#include "common.h"
#include "board-zoom.h"
#include "gpmc.h"
#include "gpmc-smsc911x.h"

#include <video/omapdss.h>
#include <video/omap-panel-generic-dpi.h>

#include "board-flash.h"
#include "mux.h"
#include "hsmmc.h"
#include "control.h"
#include "common-board-devices.h"

#define LDP_SMSC911X_CS		1
#define LDP_SMSC911X_GPIO	152
#define DEBUG_BASE		0x08000000
#define LDP_ETHR_START		DEBUG_BASE

static uint32_t board_keymap[] = {
	KEY(0, 0, KEY_1),
	KEY(1, 0, KEY_2),
	KEY(2, 0, KEY_3),
	KEY(0, 1, KEY_4),
	KEY(1, 1, KEY_5),
	KEY(2, 1, KEY_6),
	KEY(3, 1, KEY_F5),
	KEY(0, 2, KEY_7),
	KEY(1, 2, KEY_8),
	KEY(2, 2, KEY_9),
	KEY(3, 2, KEY_F6),
	KEY(0, 3, KEY_F7),
	KEY(1, 3, KEY_0),
	KEY(2, 3, KEY_F8),
	PERSISTENT_KEY(4, 5),
	KEY(4, 4, KEY_VOLUMEUP),
	KEY(5, 5, KEY_VOLUMEDOWN),
	0
};

static struct matrix_keymap_data board_map_data = {
	.keymap			= board_keymap,
	.keymap_size		= ARRAY_SIZE(board_keymap),
};

static struct twl4030_keypad_data ldp_kp_twl4030_data = {
	.keymap_data	= &board_map_data,
	.rows		= 6,
	.cols		= 6,
	.rep		= 1,
};

static struct gpio_keys_button ldp_gpio_keys_buttons[] = {
	[0] = {
		.code			= KEY_ENTER,
		.gpio			= 101,
		.desc			= "enter sw",
		.active_low		= 1,
		.debounce_interval	= 30,
	},
	[1] = {
		.code			= KEY_F1,
		.gpio			= 102,
		.desc			= "func 1",
		.active_low		= 1,
		.debounce_interval	= 30,
	},
	[2] = {
		.code			= KEY_F2,
		.gpio			= 103,
		.desc			= "func 2",
		.active_low		= 1,
		.debounce_interval	= 30,
	},
	[3] = {
		.code			= KEY_F3,
		.gpio			= 104,
		.desc			= "func 3",
		.active_low		= 1,
		.debounce_interval 	= 30,
	},
	[4] = {
		.code			= KEY_F4,
		.gpio			= 105,
		.desc			= "func 4",
		.active_low		= 1,
		.debounce_interval	= 30,
	},
	[5] = {
		.code			= KEY_LEFT,
		.gpio			= 106,
		.desc			= "left sw",
		.active_low		= 1,
		.debounce_interval	= 30,
	},
	[6] = {
		.code			= KEY_RIGHT,
		.gpio			= 107,
		.desc			= "right sw",
		.active_low		= 1,
		.debounce_interval	= 30,
	},
	[7] = {
		.code			= KEY_UP,
		.gpio			= 108,
		.desc			= "up sw",
		.active_low		= 1,
		.debounce_interval	= 30,
	},
	[8] = {
		.code			= KEY_DOWN,
		.gpio			= 109,
		.desc			= "down sw",
		.active_low		= 1,
		.debounce_interval	= 30,
	},
};

static struct gpio_keys_platform_data ldp_gpio_keys = {
	.buttons		= ldp_gpio_keys_buttons,
	.nbuttons		= ARRAY_SIZE(ldp_gpio_keys_buttons),
	.rep			= 1,
};

static struct platform_device ldp_gpio_keys_device = {
	.name		= "gpio-keys",
	.id		= -1,
	.dev		= {
		.platform_data	= &ldp_gpio_keys,
	},
};

static struct omap_smsc911x_platform_data smsc911x_cfg = {
	.cs             = LDP_SMSC911X_CS,
	.gpio_irq       = LDP_SMSC911X_GPIO,
	.gpio_reset     = -EINVAL,
	.flags		= SMSC911X_USE_32BIT,
};

static inline void __init ldp_init_smsc911x(void)
{
	gpmc_smsc911x_init(&smsc911x_cfg);
}

/* LCD */

static int ldp_backlight_gpio;
static int ldp_lcd_enable_gpio;

#define LCD_PANEL_RESET_GPIO		55
#define LCD_PANEL_QVGA_GPIO		56

static int ldp_panel_enable_lcd(struct omap_dss_device *dssdev)
{
	if (gpio_is_valid(ldp_lcd_enable_gpio))
		gpio_direction_output(ldp_lcd_enable_gpio, 1);
	if (gpio_is_valid(ldp_backlight_gpio))
		gpio_direction_output(ldp_backlight_gpio, 1);

	return 0;
}

static void ldp_panel_disable_lcd(struct omap_dss_device *dssdev)
{
	if (gpio_is_valid(ldp_lcd_enable_gpio))
		gpio_direction_output(ldp_lcd_enable_gpio, 0);
	if (gpio_is_valid(ldp_backlight_gpio))
		gpio_direction_output(ldp_backlight_gpio, 0);
}

static struct panel_generic_dpi_data ldp_panel_data = {
	.name			= "nec_nl2432dr22-11b",
	.platform_enable	= ldp_panel_enable_lcd,
	.platform_disable	= ldp_panel_disable_lcd,
};

static struct omap_dss_device ldp_lcd_device = {
	.name			= "lcd",
	.driver_name		= "generic_dpi_panel",
	.type			= OMAP_DISPLAY_TYPE_DPI,
	.phy.dpi.data_lines	= 18,
	.data			= &ldp_panel_data,
};

static struct omap_dss_device *ldp_dss_devices[] = {
	&ldp_lcd_device,
};

static struct omap_dss_board_info ldp_dss_data = {
	.num_devices	= ARRAY_SIZE(ldp_dss_devices),
	.devices	= ldp_dss_devices,
	.default_device	= &ldp_lcd_device,
};

static void __init ldp_display_init(void)
{
	int r;

	static struct gpio gpios[] __initdata = {
		{LCD_PANEL_RESET_GPIO, GPIOF_OUT_INIT_HIGH, "LCD RESET"},
		{LCD_PANEL_QVGA_GPIO, GPIOF_OUT_INIT_HIGH, "LCD QVGA"},
	};

	r = gpio_request_array(gpios, ARRAY_SIZE(gpios));
	if (r) {
		pr_err("Cannot request LCD GPIOs, error %d\n", r);
		return;
	}

	omap_display_init(&ldp_dss_data);
}

static int ldp_twl_gpio_setup(struct device *dev, unsigned gpio, unsigned ngpio)
{
	int r;

	struct gpio gpios[] = {
		{gpio + 7 , GPIOF_OUT_INIT_LOW, "LCD ENABLE"},
		{gpio + 15, GPIOF_OUT_INIT_LOW, "LCD BACKLIGHT"},
	};

	r = gpio_request_array(gpios, ARRAY_SIZE(gpios));
	if (r) {
		pr_err("Cannot request LCD GPIOs, error %d\n", r);
		ldp_backlight_gpio = -EINVAL;
		ldp_lcd_enable_gpio = -EINVAL;
		return r;
	}

	ldp_backlight_gpio = gpio + 15;
	ldp_lcd_enable_gpio = gpio + 7;

	return 0;
}

static struct twl4030_gpio_platform_data ldp_gpio_data = {
	.setup		= ldp_twl_gpio_setup,
};

static struct regulator_consumer_supply ldp_vmmc1_supply[] = {
	REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
};

/* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
static struct regulator_init_data ldp_vmmc1 = {
	.constraints = {
		.min_uV			= 1850000,
		.max_uV			= 3150000,
		.valid_modes_mask	= REGULATOR_MODE_NORMAL
					| REGULATOR_MODE_STANDBY,
		.valid_ops_mask		= REGULATOR_CHANGE_VOLTAGE
					| REGULATOR_CHANGE_MODE
					| REGULATOR_CHANGE_STATUS,
	},
	.num_consumer_supplies	= ARRAY_SIZE(ldp_vmmc1_supply),
	.consumer_supplies	= ldp_vmmc1_supply,
};

/* ads7846 on SPI */
static struct regulator_consumer_supply ldp_vaux1_supplies[] = {
	REGULATOR_SUPPLY("vcc", "spi1.0"),
};

/* VAUX1 */
static struct regulator_init_data ldp_vaux1 = {
	.constraints = {
		.min_uV			= 3000000,