/*
 * Copyright (c) 2009, Google Inc.
 * All rights reserved.
 * Copyright (c) 2009-2012, Code Aurora Forum. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *  * Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *  * Neither the name of Google, Inc. nor the names of its contributors
 *    may be used to endorse or promote products derived from this
 *    software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <debug.h>
#include <lib/ptable.h>
#include <smem.h>
#include <platform/iomap.h>
#include <mmc.h>
#include <platform/timer.h>
#include <platform/gpio.h>
#include <reg.h>
#include <dev/keys.h>
#include <dev/pm8921.h>
#include <dev/ssbi.h>
#include <gsbi.h>
#include <target.h>
#include <platform.h>
#include <baseband.h>
#include <uart_dm.h>
#include <crypto_hash.h>
#include <board.h>
#include <target/board.h>

extern void dmb(void);
extern void msm8960_keypad_init(void);
extern void msm8930_keypad_init(void);
extern void panel_backlight_on(void);

static unsigned mmc_sdc_base[] =
    { MSM_SDC1_BASE, MSM_SDC2_BASE, MSM_SDC3_BASE, MSM_SDC4_BASE };

static pm8921_dev_t pmic;

/* Setting this variable to different values defines the
 * behavior of CE engine:
 * platform_ce_type = CRYPTO_ENGINE_TYPE_NONE : No CE engine
 * platform_ce_type = CRYPTO_ENGINE_TYPE_SW : Software CE engine
 * platform_ce_type = CRYPTO_ENGINE_TYPE_HW : Hardware CE engine
 * Behavior is determined in the target code.
 */
static crypto_engine_type platform_ce_type = CRYPTO_ENGINE_TYPE_SW;

static void target_uart_init(void);

void target_early_init(void)
{
#if WITH_DEBUG_UART
	target_uart_init();
#endif
}

void shutdown_device(void)
{
	dprintf(CRITICAL, "Shutdown system.\n");
	pm8921_config_reset_pwr_off(0);

	/* Actually reset the chip */
	writel(0, MSM_PSHOLD_CTL_SU);
	mdelay(5000);

	dprintf(CRITICAL, "Shutdown failed.\n");
}

void target_init(void)
{
	unsigned base_addr;
	unsigned char slot;
	unsigned platform_id = board_platform_id();

	dprintf(INFO, "target_init()\n");

	/* Initialize PMIC driver */
	pmic.read = (pm8921_read_func) & pa1_ssbi2_read_bytes;
	pmic.write = (pm8921_write_func) & pa1_ssbi2_write_bytes;

	pm8921_init(&pmic);

	/* Keypad init */
	keys_init();

	if(platform_id == MSM8960)
	{
		msm8960_keypad_init();
	}
	else if((platform_id == MSM8230)   ||
			(platform_id == MSM8630)   ||
			(platform_id == MSM8930)   ||
			(platform_id == MSM8230AA) ||
			(platform_id == MSM8630AA) ||
			(platform_id == MSM8930AA))
	{
		msm8930_keypad_init();
	}
	else if( (platform_id == APQ8064) ||
		 (platform_id == MPQ8064))
	{
		apq8064_keypad_init();
	}

	/* Display splash screen if enabled */
#if DISPLAY_SPLASH_SCREEN
	display_init();
	dprintf(SPEW, "Diplay initialized\n");
#endif

	if ((platform_id == MSM8960) || (platform_id == MSM8660A)
        || (platform_id == MSM8260A) || (platform_id == APQ8060A))
		/* Enable Hardware CE */
		platform_ce_type = CRYPTO_ENGINE_TYPE_HW;

	/* Trying Slot 1 first */
	slot = 1;
	base_addr = mmc_sdc_base[slot - 1];
	if (mmc_boot_main(slot, base_addr)) {
		/* Trying Slot 3 next */
		slot = 3;
		base_addr = mmc_sdc_base[slot - 1];
		if (mmc_boot_main(slot, base_addr)) {
			dprintf(CRITICAL, "mmc init failed!");
			ASSERT(0);
		}
	}
}

unsigned board_machtype(void)
{
	return board_target_id();
}

crypto_engine_type board_ce_type(void)
{
	return platform_ce_type;
}

unsigned target_baseband()
{
	return board_baseband();
}

static unsigned target_check_power_on_reason(void)
{
	unsigned power_on_status = 0;
	unsigned int status_len = sizeof(power_on_status);
	unsigned smem_status;

	smem_status = smem_read_alloc_entry(SMEM_POWER_ON_STATUS_INFO,
					    &power_on_status, status_len);

	if (smem_status) {
		dprintf(CRITICAL,
			"ERROR: unable to read shared memory for power on reason\n");
	}
	dprintf(INFO, "Power on reason %u\n", power_on_status);
	return power_on_status;
}

void reboot_device(unsigned reboot_reason)
{
	writel(reboot_reason, RESTART_REASON_ADDR);

	/* Actually reset the chip */
	pm8921_config_reset_pwr_off(1);
	writel(0, MSM_PSHOLD_CTL_SU);
	mdelay(10000);

	dprintf(CRITICAL, "PSHOLD failed, trying watchdog reset\n");
	writel(1, MSM_WDT0_RST);
	writel(0, MSM_WDT0_EN);
	writel(0x31F3, MSM_WDT0_BT);
	writel(3, MSM_WDT0_EN);
	dmb();
	writel(3, MSM_TCSR_BASE + TCSR_WDOG_CFG);
	mdelay(10000);

	dprintf(CRITICAL, "Rebooting failed\n");
}

unsigned check_reboot_mode(void)
{
	unsigned restart_reason = 0;

	/* Read reboot reason and scrub it */
	restart_reason = readl(RESTART_REASON_ADDR);
	writel(0x00, RESTART_REASON_ADDR);

	return restart_reason;
}

unsigned target_pause_for_battery_charge(void)
{
	if (target_check_power_on_reason() == PWR_ON_EVENT_WALL_CHG)
		return 1;

	return 0;
}

void target_serialno(unsigned char *buf)
{
	unsigned int serialno;
	if (target_is_emmc_boot()) {
		serialno = mmc_get_psn();
		snprintf((char *)buf, 13, "%x", serialno);
	}
}

void target_battery_charging_enable(unsigned enable, unsigned disconnect)
{
}

/* Do any target specific intialization needed before entering fastboot mode */
void target_fastboot_init(void)
{
	/* Set the BOOT_DONE flag in PM8921 */
	pm8921_boot_done();
}

void target_uart_init(void)
{
	unsigned target_id = board_machtype();

	switch (target_id) {
	case LINUX_MACHTYPE_8960_SIM:
	case LINUX_MACHTYPE_8960_RUMI3:
	case LINUX_MACHTYPE_8960_CDP:
	case LINUX_MACHTYPE_8960_MTP:
	case LINUX_MACHTYPE_8960_FLUID:
	case LINUX_MACHTYPE_8960_APQ:
	case LINUX_MACHTYPE_8960_LIQUID:

		if(board_baseband() == BASEBAND_SGLTE)
		{
			uart_dm_init(8, 0x1A000000, 0x1A040000);;
		}
		else
		{
			uart_dm_init(5, 0x16400000, 0x16440000);
		}
		break;

	case LINUX_MACHTYPE_8930_CDP:
	case LINUX_MACHTYPE_8930_MTP:
	case LINUX_MACHTYPE_8930_FLUID:

		uart_dm_init(5, 0x16400000, 0x16440000);
		break;

	case LINUX_MACHTYPE_8064_SIM:
	case LINUX_MACHTYPE_8064_RUMI3:
		uart_dm_init(3, 0x16200000, 0x16240000);
		break;

	case LINUX_MACHTYPE_8064_CDP:
	case LINUX_MACHTYPE_8064_MTP:
	case LINUX_MACHTYPE_8064_LIQUID:
		uart_dm_init(7, 0x16600000, 0x16640000);
		break;

	case LINUX_MACHTYPE_8064_MPQ_CDP:
	case LINUX_MACHTYPE_8064_MPQ_HRD:
	case LINUX_MACHTYPE_8064_MPQ_DTV:
		uart_dm_init(5, 0x1A200000, 0x1A240000);
		break;

	case LINUX_MACHTYPE_8627_CDP:
	case LINUX_MACHTYPE_8627_MTP:

		uart_dm_init(5, 0x16400000, 0x16440000);
		break;

	default:
		dprintf(CRITICAL, "uart gsbi not defined for target: %d\n",
			target_id);

		ASSERT(0);
	}
}

/* Detect the target type */
void target_detect(struct board_data *board)
{
	uint32_t platform;
	uint32_t platform_hw;
	uint32_t target_id;

	platform = board->platform;
	platform_hw = board->platform_hw;

	/* Detect the board we are running on */
	if ((platform == MSM8960) || (platform == MSM8660A)
	    || (platform == MSM8260A) || (platform == APQ8060A)) {
		switch (platform_hw) {
		case HW_PLATFORM_SURF:
			target_id = LINUX_MACHTYPE_8960_CDP;
			break;
		case HW_PLATFORM_MTP:
			target_id = LINUX_MACHTYPE_8960_MTP;
			break;
		case HW_PLATFORM_FLUID:
			target_id = LINUX_MACHTYPE_8960_FLUID;
			break;
		case HW_PLATFORM_LIQUID:
			target_id = LINUX_MACHTYPE_8960_LIQUID;
			break;
		default:
			target_id = LINUX_MACHTYPE_8960_CDP;
		}
	} else if ((platform == MSM8230)   || (platform == MSM8630)   ||
			   (platform == MSM8930)   || (platform == MSM8230AA) ||
			   (platform == MSM8630AA) || (platform == MSM8930AA) ||
			   (platform == APQ8030)) {
		switch (platform_hw) {
		case HW_PLATFORM_SURF:
			target_id = LINUX_MACHTYPE_8930_CDP;
			break;
		case HW_PLATFORM_MTP:
			target_id = LINUX_MACHTYPE_8930_MTP;
			break;
		case HW_PLATFORM_FLUID:
			target_id = LINUX_MACHTYPE_8930_FLUID;
			break;
		default:
			target_id = LINUX_MACHTYPE_8930_CDP;
		}
	} else if ((platform == MSM8227) || (platform == MSM8627)) {
		switch (platform_hw) {
		case HW_PLATFORM_SURF:
			target_id = LINUX_MACHTYPE_8627_CDP;
			break;
		case HW_PLATFORM_MTP:
			target_id = LINUX_MACHTYPE_8627_MTP;
			break;
		default:
			target_id = LINUX_MACHTYPE_8627_CDP;
		}
	} else if (platform == MPQ8064) {
		switch (platform_hw) {
		case HW_PLATFORM_SURF:
			target_id = LINUX_MACHTYPE_8064_MPQ_CDP;
			break;
		case HW_PLATFORM_HRD:
			target_id = LINUX_MACHTYPE_8064_MPQ_HRD;
			break;
		case HW_PLATFORM_DTV:
			target_id = LINUX_MACHTYPE_8064_MPQ_DTV;
			break;
		default:
			target_id = LINUX_MACHTYPE_8064_MPQ_CDP;
		}
	} else if ((platform == APQ8064)) {
		switch (platform_hw) {
		case HW_PLATFORM_SURF:
			target_id = LINUX_MACHTYPE_8064_CDP;
			break;
		case HW_PLATFORM_MTP:
			target_id = LINUX_MACHTYPE_8064_MTP;
			break;
		case HW_PLATFORM_LIQUID:
			target_id = LINUX_MACHTYPE_8064_LIQUID;
			break;
		default:
			target_id = LINUX_MACHTYPE_8064_CDP;
		}
	} else {
		dprintf(CRITICAL, "platform (%d) is not identified.\n",
			platform);
		ASSERT(0);
	}
	board->target = target_id;
}

/* Detect the modem type */
void target_baseband_detect(struct board_data *board)
{
	uint32_t baseband;
	uint32_t platform;
	uint32_t platform_subtype;

	platform         = board->platform;
	platform_subtype = board->platform_subtype;

	/* Check for baseband variants. Default to MSM */
	if (platform_subtype == HW_PLATFORM_SUBTYPE_MDM)
		baseband = BASEBAND_MDM;
	else if (platform_subtype == HW_PLATFORM_SUBTYPE_SGLTE)
		baseband = BASEBAND_SGLTE;
	else if (platform == APQ8060)
		baseband = BASEBAND_APQ;
	else if (platform == APQ8064)
		baseband = BASEBAND_APQ;
	else if (platform == MPQ8064)
		baseband = BASEBAND_APQ;
	else
		baseband = BASEBAND_MSM;

	board->baseband = baseband;
}

/* Returns 1 if target supports continuous splash screen. */
int target_cont_splash_screen()
{
	switch(board_platform_id())
	{
	case MSM8960:
		return 1;

	default:
		return 0;
	}
}

void apq8064_ext_3p3V_enable()
{
	/* Configure GPIO for output */
	gpio_tlmm_config(77, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_8MA, GPIO_ENABLE);

	/* Output High */
	gpio_set(77, 2);
}

/* Do target specific usb initialization */
void target_usb_init(void)
{
	if(board_target_id() == LINUX_MACHTYPE_8064_LIQUID)
	{
			apq8064_ext_3p3V_enable();
	}
}