/* Copyright Statement:
*
* This software/firmware and related documentation ("MediaTek Software") are
* protected under relevant copyright laws. The information contained herein
* is confidential and proprietary to MediaTek Inc. and/or its licensors.
* Without the prior written permission of MediaTek inc. and/or its licensors,
* any reproduction, modification, use or disclosure of MediaTek Software,
* and information contained herein, in whole or in part, shall be strictly prohibited.
*/
/* MediaTek Inc. (C) 2015. All rights reserved.
*
* BY OPENING THIS FILE, RECEIVER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
* THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
* RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO RECEIVER ON
* AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT.
* NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH RESPECT TO THE
* SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, INCORPORATED IN, OR
* SUPPLIED WITH THE MEDIATEK SOFTWARE, AND RECEIVER AGREES TO LOOK ONLY TO SUCH
* THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO. RECEIVER EXPRESSLY ACKNOWLEDGES
* THAT IT IS RECEIVER'S SOLE RESPONSIBILITY TO OBTAIN FROM ANY THIRD PARTY ALL PROPER LICENSES
* CONTAINED IN MEDIATEK SOFTWARE. MEDIATEK SHALL ALSO NOT BE RESPONSIBLE FOR ANY MEDIATEK
* SOFTWARE RELEASES MADE TO RECEIVER'S SPECIFICATION OR TO CONFORM TO A PARTICULAR
* STANDARD OR OPEN FORUM. RECEIVER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S ENTIRE AND
* CUMULATIVE LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE RELEASED HEREUNDER WILL BE,
* AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE MEDIATEK SOFTWARE AT ISSUE,
* OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE CHARGE PAID BY RECEIVER TO
* MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE.
*
* The following software/firmware and/or related documentation ("MediaTek Software")
* have been modified by MediaTek Inc. All revisions are subject to any receiver\'s
* applicable license agreements with MediaTek Inc.
*/
#ifndef BUILD_LK
#include <linux/string.h>
#else
#include <string.h>
#endif 

#ifdef BUILD_LK
#include <platform/mt_gpio.h>
#include <platform/mt_i2c.h>
#include <platform/mt_pmic.h>
#elif (defined BUILD_UBOOT)
#include <asm/arch/mt6577_gpio.h>
#else
#include <mach/mt_gpio.h>
#include <mach/mt_pm_ldo.h>
#endif

#include "lcm_drv.h"

#ifndef BUILD_LK
static bool fgisFirst = TRUE;
#endif
// ---------------------------------------------------------------------------
//  Local Constants
// ---------------------------------------------------------------------------
#define FRAME_WIDTH  (1024)
#define FRAME_HEIGHT (600)

// ---------------------------------------------------------------------------
//  Local Variables
// ---------------------------------------------------------------------------
static LCM_UTIL_FUNCS lcm_util = {0};

#define SET_RESET_PIN(v)    (lcm_util.set_reset_pin((v)))

#define UDELAY(n) (lcm_util.udelay(n))
#define MDELAY(n) (lcm_util.mdelay(n))

#ifdef GPIO_LCM_PWR_EN
#define GPIO_LCD_PWR_EN      GPIO_LCM_PWR_EN
#else
#define GPIO_LCD_PWR_EN      0xFFFFFFFF
#endif

#ifdef GPIO_LCM_RST
#define GPIO_LCD_RST      GPIO_LCM_RST
#else
#define GPIO_LCD_RST      0xFFFFFFFF
#endif

#ifdef GPIO_LCM_BL_EN
#define GPIO_LCD_BL_EN      GPIO_LCM_BL_EN
#else
#define GPIO_LCD_BL_EN      0xFFFFFFFF
#endif

// ---------------------------------------------------------------------------
//  Local Functions
// ---------------------------------------------------------------------------
#define dsi_set_cmdq_V2(cmd, count, ppara, force_update)	  lcm_util.dsi_set_cmdq_V2(cmd, count, ppara, force_update)
#define dsi_set_cmdq(pdata, queue_size, force_update)				lcm_util.dsi_set_cmdq(pdata, queue_size, force_update)
#define wrtie_cmd(cmd)																			lcm_util.dsi_write_cmd(cmd)
#define write_regs(addr, pdata, byte_nums)									lcm_util.dsi_write_regs(addr, pdata, byte_nums)
#define read_reg(cmd)																				lcm_util.dsi_dcs_read_lcm_reg(cmd)
#define read_reg_v2(cmd, buffer, buffer_size)   						lcm_util.dsi_dcs_read_lcm_reg_v2(cmd, buffer, buffer_size)   

#define   LCM_DSI_CMD_MODE	0
#define REGFLAG_DELAY       0XFFE
#define REGFLAG_END_OF_TABLE    0xFFF   // END OF REGISTERS MARKER


struct LCM_setting_table
{
    unsigned cmd;
    unsigned char count;
    unsigned char para_list[64];
};

static struct LCM_setting_table lcm_initialization_setting[] =
{
    {0x25,1,{0x55}},
    {0x36,1,{0x01}},
    //{0x25,1,{0x00}},

    {0xB1,1,{0x30}},
    {0xB2,1,{0x10}},
    {0x80,1,{0x47}},
    {0x81,1,{0x40}},
    {0x82,1,{0x04}},
    {0x83,1,{0x77}},
    {0x84,1,{0x0f}},
    {0x85,1,{0x70}},
    {0x86,1,{0x70}},
    //{0x25,1,{0x00}},
    
    //{0x11,1,{0x00}},
    {REGFLAG_DELAY,150,{}},
    //{0x29,1,{0x00}},
    //{REGFLAG_DELAY,70,{}},
    {REGFLAG_END_OF_TABLE, 0x00, {}},
};

static void push_table(struct LCM_setting_table *table, unsigned int count, unsigned char force_update)
{
    unsigned int i;

    for(i = 0; i < count; i++) {

        unsigned cmd;
        cmd = table[i].cmd;

        switch (cmd) {

            case REGFLAG_DELAY :
                MDELAY(table[i].count);
                break;

            case REGFLAG_END_OF_TABLE :
                break;

            default:
                dsi_set_cmdq_V2(cmd, table[i].count, table[i].para_list, force_update);
        }   
    }   

}


// ---------------------------------------------------------------------------
//  LCM Driver Implementations
// ---------------------------------------------------------------------------
static void lcm_set_util_funcs(const LCM_UTIL_FUNCS *util)
{
    memcpy(&lcm_util, util, sizeof(LCM_UTIL_FUNCS));
}

static void lcm_get_params(LCM_PARAMS *params)
{
		memset(params, 0, sizeof(LCM_PARAMS));
	
		params->type   = LCM_TYPE_DSI;

		params->width  = FRAME_WIDTH;
		params->height = FRAME_HEIGHT;
		
    #if (LCM_DSI_CMD_MODE)
		params->dsi.mode   = CMD_MODE;
    #else
		params->dsi.mode   = BURST_VDO_MODE;	//SYNC_EVENT_VDO_MODE;		//SYNC_PULSE_VDO_MODE;
    #endif
	
		// DSI
		/* Command mode setting */
		// Three lane or Four lane
		params->dsi.LANE_NUM				= LCM_TWO_LANE;
		
		//The following defined the fomat for data coming from LCD engine.
		params->dsi.data_format.color_order = LCM_COLOR_ORDER_RGB;
		params->dsi.data_format.trans_seq   = LCM_DSI_TRANS_SEQ_MSB_FIRST;
		params->dsi.data_format.padding     = LCM_DSI_PADDING_ON_LSB;
		params->dsi.data_format.format      = LCM_DSI_FORMAT_RGB888;

		// Highly depends on LCD driver capability.
		// Not support in MT6573
		params->dsi.packet_size=256;

		// Video mode setting		
		params->dsi.intermediat_buffer_num = 0;

		params->dsi.PS=LCM_PACKED_PS_24BIT_RGB888;
		params->dsi.word_count=FRAME_WIDTH*3;
		
		params->dsi.vertical_sync_active				= 10;
		params->dsi.vertical_backporch					= 8;
		params->dsi.vertical_frontporch					= 6;
		params->dsi.vertical_active_line				= FRAME_HEIGHT; 

		params->dsi.horizontal_sync_active				= 10;
		params->dsi.horizontal_backporch				= 60;
		params->dsi.horizontal_frontporch				= 60;
		params->dsi.horizontal_blanking_pixel = 60;
		params->dsi.horizontal_active_pixel				= FRAME_WIDTH;
		
		// Bit rate calculation
		// Every lane speed
		//params->dsi.pll_div1=0;				// div1=0,1,2,3;div1_real=1,2,4,4
		//params->dsi.pll_div2=0;				// div2=0,1,2,3;div1_real=1,2,4,4	
		//params->dsi.fbk_div =0x12;    // fref=26MHz, fvco=fref*(fbk_div+1)*2/(div1_real*div2_real)	
		params->dsi.cont_clock 	= 1;
		params->dsi.ssc_disable = 0;
		params->dsi.PLL_CLOCK 	= 300;
		
}

static void lcm_set_gpio_output(unsigned int GPIO, unsigned int output)
{
   mt_set_gpio_mode(GPIO, GPIO_MODE_00);
   mt_set_gpio_dir(GPIO, GPIO_DIR_OUT);
   mt_set_gpio_out(GPIO, (output>0)? GPIO_OUT_ONE: GPIO_OUT_ZERO);
}

static void lcm_initial_registers(void)
{
	/*unsigned int data_array[16];

	data_array[0]= 0x10b11500;
	dsi_set_cmdq(data_array, 1, 1);

	data_array[0]= 0x10b21500;
	dsi_set_cmdq(data_array, 1, 1);
	
	data_array[0]= 0x47801500;
	dsi_set_cmdq(data_array, 1, 1);

	data_array[0]= 0x40811500;
	dsi_set_cmdq(data_array, 1, 1);
	
	data_array[0]= 0x04821500;
	dsi_set_cmdq(data_array, 1, 1);
	
	data_array[0]= 0x77831500;
	dsi_set_cmdq(data_array, 1, 1);
	
	data_array[0]= 0x0f841500;
	dsi_set_cmdq(data_array, 1, 1);	

	data_array[0]= 0x55871500;	//0x5a871500;
	dsi_set_cmdq(data_array, 1, 1);

	data_array[0]= 0x01361500;
	dsi_set_cmdq(data_array, 1, 1); 	*/
}

static void lcm_init(void)
{
#ifdef BUILD_LK 
	printf("[LK/LCM] lcm_init() enter\n");

	lcm_set_gpio_output(GPIO_LCD_PWR_EN, GPIO_OUT_ZERO);
	//MDELAY(50);
	
	//VGP1 1.8V
	upmu_set_rg_vgp1_vosel(0x3);
	upmu_set_rg_vgp1_en(0x1);
	MDELAY(10);
	
	lcm_set_gpio_output(GPIO_LCD_RST, GPIO_OUT_ONE);
	MDELAY(10);
	
	lcm_set_gpio_output(GPIO_LCD_RST, GPIO_OUT_ZERO);
	MDELAY(20);
	
	lcm_set_gpio_output(GPIO_LCD_RST, GPIO_OUT_ONE);
	MDELAY(10);
	
	lcm_set_gpio_output(GPIO_LCD_PWR_EN, GPIO_OUT_ONE);
	MDELAY(200);
	push_table(lcm_initialization_setting, sizeof(lcm_initialization_setting) / sizeof(struct LCM_setting_table), 1); 
	
	lcm_set_gpio_output(GPIO_LCD_BL_EN, GPIO_OUT_ONE);	
#else
	printk("[Kernel/LCM] lcm_init() enter\n");

	//lcm_set_gpio_output(GPIO_LCD_PWR_EN, GPIO_OUT_ZERO);
	//MDELAY(10);

	//hwPowerOn(MT65XX_POWER_LDO_VGP6, VOL_1800, "LCM");
	//MDELAY(10);

	//lcm_set_gpio_output(GPIO_LCD_PWR_EN, GPIO_OUT_ONE);
	//MDELAY(300);
	
#endif
	//lcm_initial_registers();
}

static void lcm_suspend(void)
{
#ifdef BUILD_LK
	printf("[LK/LCM] lcm_suspend() enter\n");

	//lcm_set_gpio_output(GPIO_LCD_PWR_EN,GPIO_OUT_ZERO);
	//MDELAY(100);
	
	//VGP1 1.8V
	//upmu_set_rg_vgp1_vosel(0x0);
	//upmu_set_rg_vgp1_en(0x0);
	//MDELAY(50);	
#else
	printk("[Kernel/LCM] lcm_suspend() enter\n");
	
	lcm_set_gpio_output(GPIO_LCD_BL_EN, GPIO_OUT_ZERO);	
	MDELAY(10);
	if(fgisFirst == TRUE)
	{
		 fgisFirst = FALSE;
		hwPowerOn(MT6323_POWER_LDO_VGP1, VOL_1800, "LCM");
	}
	
	hwPowerDown(MT6323_POWER_LDO_VGP1, "LCM");
	MDELAY(10);
	
	lcm_set_gpio_output(GPIO_LCD_PWR_EN,GPIO_OUT_ZERO);
	MDELAY(10);
	
	lcm_set_gpio_output(GPIO_LCD_RST,GPIO_OUT_ZERO);
	//MDELAY(100);
#endif
}

static void lcm_resume(void)
{
#ifdef BUILD_LK 
	printf("[LK/LCM] lcm_resume() enter\n");

	//lcm_set_gpio_output(GPIO_LCD_PWR_EN, GPIO_OUT_ZERO);
	//MDELAY(50);

	//VGP1 1.8V
	//upmu_set_rg_vgp1_vosel(0x3);
	//upmu_set_rg_vgp1_en(0x1);
	//MDELAY(10);
	
	//lcm_set_gpio_output(GPIO_LCD_PWR_EN, GPIO_OUT_ONE);
	//MDELAY(300);	
#else
	printk("[Kernel/LCM] lcm_resume() enter\n");

	hwPowerOn(MT6323_POWER_LDO_VGP1, VOL_1800, "LCM");
	MDELAY(5);
	
	//lcm_set_gpio_output(GPIO_LCD_RST, GPIO_OUT_ONE);
	//MDELAY(20);
	
	lcm_set_gpio_output(GPIO_LCD_RST, GPIO_OUT_ZERO);
	MDELAY(20);

	lcm_set_gpio_output(GPIO_LCD_RST, GPIO_OUT_ONE);
	MDELAY(10);
	
	lcm_set_gpio_output(GPIO_LCD_PWR_EN, GPIO_OUT_ONE);
	MDELAY(20);
	push_table(lcm_initialization_setting, sizeof(lcm_initialization_setting) / sizeof(struct LCM_setting_table), 1);
	lcm_set_gpio_output(GPIO_LCD_BL_EN, GPIO_OUT_ONE);	
	printk("[Kernel/LCM] lcm_resume() end\n");
	//MDELAY(10);
#endif
}

#if (LCM_DSI_CMD_MODE)
static void lcm_update(unsigned int x, unsigned int y, unsigned int width, unsigned int height)
{
	unsigned int x0 = x;
	unsigned int y0 = y;
	unsigned int x1 = x0 + width - 1;
	unsigned int y1 = y0 + height - 1;

	unsigned char x0_MSB = ((x0>>8)&0xFF);
	unsigned char x0_LSB = (x0&0xFF);
	unsigned char x1_MSB = ((x1>>8)&0xFF);
	unsigned char x1_LSB = (x1&0xFF);
	unsigned char y0_MSB = ((y0>>8)&0xFF);
	unsigned char y0_LSB = (y0&0xFF);
	unsigned char y1_MSB = ((y1>>8)&0xFF);
	unsigned char y1_LSB = (y1&0xFF);

	unsigned int data_array[16];

	data_array[0]= 0x00053902;
	data_array[1]= (x1_MSB<<24)|(x0_LSB<<16)|(x0_MSB<<8)|0x2a;
	data_array[2]= (x1_LSB);
	dsi_set_cmdq(data_array, 3, 1);
	
	data_array[0]= 0x00053902;
	data_array[1]= (y1_MSB<<24)|(y0_LSB<<16)|(y0_MSB<<8)|0x2b;
	data_array[2]= (y1_LSB);
	dsi_set_cmdq(data_array, 3, 1);

	data_array[0]= 0x00290508; 				//HW bug, so need send one HS packet
	dsi_set_cmdq(data_array, 1, 1);
	
	data_array[0]= 0x002c3909;
	dsi_set_cmdq(data_array, 1, 0);
}
#endif


LCM_DRIVER ek79007_wsvgalnl_dsi_vdo_lcm_drv = 
{
  .name				= "EK79007_WSVGALNL_DSI_VDO",
	.set_util_funcs = lcm_set_util_funcs,
	.get_params     = lcm_get_params,
	.init           = lcm_init,
	.suspend        = lcm_suspend,
	.resume         = lcm_resume,
//	.init_power		= lcm_power,
#if (LCM_DSI_CMD_MODE)
  .update         	= lcm_update,
#endif
};