/* drivers/video/sc8825/lcd_ili9806e_2_mipi.c
 *
 * Support for ili9806e_2 mipi LCD device
 *
 * Copyright (C) 2010 Spreadtrum
 *
 * This software is licensed under the terms of the GNU General Public
 * License version 2, as published by the Free Software Foundation, and
 * may be copied, distributed, and modified under those terms.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#include <linux/kernel.h>
#include <linux/bug.h>
#include <linux/delay.h>
#include "../sprdfb_panel.h"

//#define  LCD_DEBUG
#ifdef LCD_DEBUG
#define LCD_PRINT printk
#else
#define LCD_PRINT(...)
#endif

#define MAX_DATA   48

typedef struct LCM_Init_Code_tag {
	unsigned int tag;
	unsigned char data[MAX_DATA];
}LCM_Init_Code;

typedef struct LCM_force_cmd_code_tag{
	unsigned int datatype;
	LCM_Init_Code real_cmd_code;
}LCM_Force_Cmd_Code;

#define LCM_TAG_SHIFT 24
#define LCM_TAG_MASK  ((1 << 24) -1)
#define LCM_SEND(len) ((1 << LCM_TAG_SHIFT)| len)
#define LCM_SLEEP(ms) ((2 << LCM_TAG_SHIFT)| ms)
//#define ARRAY_SIZE(array) ( sizeof(array) / sizeof(array[0]))

#define LCM_TAG_SEND  (1<< 0)
#define LCM_TAG_SLEEP (1 << 1)

static LCM_Init_Code init_data[] = {
	{LCM_SEND(8), {6, 0,0xFF,0xFF,0x98,0x06,0x04,0x01}},// Change to Page 1
	{LCM_SLEEP(5)},

	{LCM_SEND(2), {0x08,0x10}},// output SDA

	{LCM_SEND(2), {0x21,0x01}},// DE = 1 Active

	{LCM_SEND(2), {0x30,0x02}},// 480 X 800 Ó¦¸ÃÉèΪ2
	{LCM_SEND(2), {0x31,0x02}}, // 2-dot Inversion

	{LCM_SEND(2), {0x50,0x78}},// VGMP
	{LCM_SEND(2), {0x51,0x78}},// VGMN
	{LCM_SEND(2), {0x52,0x00}}, //Flicker
	{LCM_SEND(2), {0x53,0x77}},//Flicker
	{LCM_SEND(2), {0x54,0x00}},//Flicker
	{LCM_SEND(2), {0x55,0x77}},//Flicker
	
	{LCM_SEND(2), {0x60,0x07}},// SDTI
	{LCM_SEND(2), {0x61,0x00}},// CRTI
	{LCM_SEND(2), {0x62,0x08}},// EQTI
	{LCM_SEND(2), {0x63,0x00}}, // PCTI

	{LCM_SEND(2), {0x40,0x10}},// VGH/VGL
	{LCM_SEND(2), {0x41,0x33}}, // VGH/VGL
	{LCM_SEND(2), {0x42,0x02}},// VGH/VGL
	{LCM_SEND(2), {0x43,0x09}},// VGH/VGL
	{LCM_SEND(2), {0x44,0x07}},// VGH/VGL

//++++++++++++++++++ Gamma Setting ++++++++++++++++++//

	{LCM_SEND(8), {6, 0,0xFF,0xFF,0x98,0x06,0x04,0x01}},// Change to Page 1

	{LCM_SEND(2), {0xA0,0x00}},// Gamma 0
	{LCM_SEND(2), {0xA1,0x04}},// Gamma 4
	{LCM_SEND(2), {0xA2,0x0A}},// Gamma 8
	{LCM_SEND(2), {0xA3,0x11}},// Gamma 16
	{LCM_SEND(2), {0xA4,0x0C}},// Gamma 24
	{LCM_SEND(2), {0xA5,0x1D}},// Gamma 52
	{LCM_SEND(2), {0xA6,0x0D}},// Gamma 80
	{LCM_SEND(2), {0xA7,0x07}},// Gamma 108
	{LCM_SEND(2), {0xA8,0x05}},// Gamma 147
	{LCM_SEND(2), {0xA9,0x0B}},// Gamma 175
	{LCM_SEND(2), {0xAA,0x07}},// Gamma 203
	{LCM_SEND(2), {0xAB,0x04}},// Gamma 231
	{LCM_SEND(2), {0xAC,0x0F}},// Gamma 239
	{LCM_SEND(2), {0xAD,0x2B}},// Gamma 247
	{LCM_SEND(2), {0xAE,0x24}},// Gamma 251
	{LCM_SEND(2), {0xAF,0x00}},// Gamma 255

///==============Nagitive
	{LCM_SEND(2), {0xC0,0x00}}, // Gamma 0
	{LCM_SEND(2), {0xC1,0x04}}, // Gamma 4
	{LCM_SEND(2), {0xC2,0x0D}}, // Gamma 8
	{LCM_SEND(2), {0xC3,0x0E}}, // Gamma 16
	{LCM_SEND(2), {0xC4,0x0B}}, // Gamma 24
	{LCM_SEND(2), {0xC5,0x15}}, // Gamma 52
	{LCM_SEND(2), {0xC6,0x07}}, // Gamma 80
	{LCM_SEND(2), {0xC7,0x09}}, // Gamma 108
	{LCM_SEND(2), {0xC8,0x02}}, // Gamma 147
	{LCM_SEND(2), {0xC9,0x06}}, // Gamma 175
	{LCM_SEND(2), {0xCA,0x05}}, // Gamma 203
	{LCM_SEND(2), {0xCB,0x04}}, // Gamma 231
	{LCM_SEND(2), {0xCC,0x09}}, // Gamma 239
	{LCM_SEND(2), {0xCD,0x2C}}, // Gamma 247
	{LCM_SEND(2), {0xCE,0x27}}, // Gamma 251
	{LCM_SEND(2), {0xCF,0x00}}, // Gamma 255

	{LCM_SEND(8), {6, 0,0xFF,0xFF,0x98,0x06,0x04,0x06}}, // Change to Page 6

	{LCM_SEND(2), {0x00,0x21}},
	{LCM_SEND(2), {0x01,0x09}},
	{LCM_SEND(2), {0x02,0x00}},
	{LCM_SEND(2), {0x03,0x00}},
	{LCM_SEND(2), {0x04,0x01}},
	{LCM_SEND(2), {0x05,0x01}},
	{LCM_SEND(2), {0x06,0x80}},
	{LCM_SEND(2), {0x07,0x05}},
	{LCM_SEND(2), {0x08,0x02}},
	{LCM_SEND(2), {0x09,0x80}},
	{LCM_SEND(2), {0x0A,0x00}},
	{LCM_SEND(2), {0x0B,0x00}},
	{LCM_SEND(2), {0x0C,0x0a}},
	{LCM_SEND(2), {0x0D,0x0a}},
	{LCM_SEND(2), {0x0E,0x00}},
	{LCM_SEND(2), {0x0F,0x00}},

	{LCM_SEND(2), {0x10,0xE0}},
	{LCM_SEND(2), {0x11,0xE4}},
	{LCM_SEND(2), {0x12,0x04}},
	{LCM_SEND(2), {0x13,0x00}},
	{LCM_SEND(2), {0x14,0x00}},
	{LCM_SEND(2), {0x15,0xC0}},
	{LCM_SEND(2), {0x16,0x08}},
	{LCM_SEND(2), {0x17,0x00}},
	{LCM_SEND(2), {0x18,0x00}},
	{LCM_SEND(2), {0x19,0x00}},
	{LCM_SEND(2), {0x1A,0x00}},
	{LCM_SEND(2), {0x1B,0x00}},
	{LCM_SEND(2), {0x1C,0x00}},
	{LCM_SEND(2), {0x1D,0x00}},

	{LCM_SEND(2), {0x20,0x01}},
	{LCM_SEND(2), {0x21,0x23}},
	{LCM_SEND(2), {0x22,0x45}},
	{LCM_SEND(2), {0x23,0x67}},
	{LCM_SEND(2), {0x24,0x01}},
	{LCM_SEND(2), {0x25,0x23}},
	{LCM_SEND(2), {0x26,0x45}},
	{LCM_SEND(2), {0x27,0x67}},

	{LCM_SEND(2), {0x30,0x01}},
	{LCM_SEND(2), {0x31,0x11}},
	{LCM_SEND(2), {0x32,0x00}},
	{LCM_SEND(2), {0x33,0xee}},
	{LCM_SEND(2), {0x34,0xff}},
	{LCM_SEND(2), {0x35,0xCB}},
	{LCM_SEND(2), {0x36,0xDA}},
	{LCM_SEND(2), {0x37,0xAD}},
	{LCM_SEND(2), {0x38,0xBC}},
	{LCM_SEND(2), {0x39,0x76}},
	{LCM_SEND(2), {0x3A,0x67}},
	{LCM_SEND(2), {0x3B,0x22}},
	{LCM_SEND(2), {0x3C,0x22}},
	{LCM_SEND(2), {0x3D,0x22}},
	{LCM_SEND(2), {0x3E,0x22}},
	{LCM_SEND(2), {0x3F,0x22}},

	{LCM_SEND(2), {0x40,0x22}},

	{LCM_SEND(2), {0x52,0x10}},

	{LCM_SEND(2), {0x53,0x10}},

//	{LCM_SEND(2), {0x58,0x97}},

	{LCM_SEND(8), {6, 0,0xFF,0xFF,0x98,0x06,0x04,0x07}}, // Change to Page 7
	{LCM_SEND(2), {0x17,0x22}},

	{LCM_SEND(2), {0x02,0x77}},

	{LCM_SEND(2), {0xe1,0x79}},
	{LCM_SEND(2), {0x26,0xB2}},
	//{LCM_SEND(2), {0x06,0x13}},
	
//****************************************************************************//
	{LCM_SEND(8), {6, 0,0xFF,0xFF,0x98,0x06,0x04,0x00}}, // Change to Page 0

	{LCM_SEND(2), {0x35,0x00}},
	{LCM_SEND(2), {0x55,0xB0}},
	
	{LCM_SEND(1), {0x11}},
	{LCM_SLEEP(120)},

	{LCM_SEND(1), {0x29}},
	{LCM_SLEEP(20)},
 };

static LCM_Init_Code disp_on =  {LCM_SEND(1), {0x29}};

static LCM_Init_Code sleep_in[] =  {
    {LCM_SEND(8), {6, 0,0xFF,0xFF,0x98,0x06,0x04,0x00}},
    {LCM_SLEEP(1)},

    {LCM_SEND(1), {0x28}},
    {LCM_SLEEP(20)},
    {LCM_SEND(1), {0x10}},
    {LCM_SLEEP(120)},
};

static LCM_Init_Code sleep_out[] =  {
    {LCM_SEND(1), {0x11}},
    {LCM_SLEEP(120)},
    {LCM_SEND(1), {0x29}},
    {LCM_SLEEP(20)},
};

static LCM_Force_Cmd_Code rd_prep_code[]={
	{0x39, {LCM_SEND(8), {0x6, 0, 0xFF, 0xFF, 0x98, 0x06,0x04,0x01}}},
	{0x37, {LCM_SEND(2), {0x3, 0}}},
};

static LCM_Force_Cmd_Code rd_prep_code_1[]={
	{0x37, {LCM_SEND(2), {0x1, 0}}},
};
static int32_t ili9806e_2_mipi_init(struct panel_spec *self)
{
	int32_t i;
	LCM_Init_Code *init = init_data;
	unsigned int tag;

	mipi_set_cmd_mode_t mipi_set_cmd_mode = self->info.mipi->ops->mipi_set_cmd_mode;
	mipi_gen_write_t mipi_gen_write = self->info.mipi->ops->mipi_gen_write;
	mipi_eotp_set_t mipi_eotp_set = self->info.mipi->ops->mipi_eotp_set;

	pr_debug(KERN_DEBUG "ili9806e_2_mipi_init\n");

	msleep(2);
	mipi_set_cmd_mode();
	mipi_eotp_set(1,0);

	for(i = 0; i < ARRAY_SIZE(init_data); i++){
		tag = (init->tag >>24);
		if(tag & LCM_TAG_SEND){
			mipi_gen_write(init->data, (init->tag & LCM_TAG_MASK));
			udelay(20);
		}else if(tag & LCM_TAG_SLEEP){
			//udelay((init->tag & LCM_TAG_MASK) * 1000);
				msleep(init->tag & LCM_TAG_MASK);
		}
		init++;
	}
	mipi_eotp_set(1,1);

	return 0;
}

static uint32_t ili9806e_2_readid(struct panel_spec *self)
{
	/*Jessica TODO: need read id*/
	int32_t i = 0;
	uint32_t j =0;
	LCM_Force_Cmd_Code * rd_prepare = rd_prep_code;
	uint8_t read_data[3] = {0};
	int32_t read_rtn = 0;
	unsigned int tag = 0;
	mipi_set_cmd_mode_t mipi_set_cmd_mode = self->info.mipi->ops->mipi_set_cmd_mode;
	mipi_force_write_t mipi_force_write = self->info.mipi->ops->mipi_force_write;
	mipi_force_read_t mipi_force_read = self->info.mipi->ops->mipi_force_read;
	mipi_eotp_set_t mipi_eotp_set = self->info.mipi->ops->mipi_eotp_set;

	printk("lcd_ili9806e_2_mipi read id!\n");

	mipi_set_cmd_mode();
	mipi_eotp_set(1,0);

	for(j = 0; j < 4; j++){
		rd_prepare = rd_prep_code;
		for(i = 0; i < ARRAY_SIZE(rd_prep_code); i++){
			tag = (rd_prepare->real_cmd_code.tag >> 24);
			if(tag & LCM_TAG_SEND){
				mipi_force_write(rd_prepare->datatype, rd_prepare->real_cmd_code.data, (rd_prepare->real_cmd_code.tag & LCM_TAG_MASK));
			}else if(tag & LCM_TAG_SLEEP){
				msleep((rd_prepare->real_cmd_code.tag & LCM_TAG_MASK));
			}
			rd_prepare++;
		}
		read_rtn = mipi_force_read(0x02, 3,(uint8_t *)read_data);
		printk("lcd_ili9806e_2_mipi read id 0xc5 value is 0x%x, 0x%x, 0x%x!\n", read_data[0], read_data[1], read_data[2]);

		if((0x04 == read_data[0])){
			printk("lcd_ili9806e_2_mipi read id success!\n");
			mipi_eotp_set(1,1);
			return 0x980602;
		}
	}
	mipi_eotp_set(1,1);
	return 0x0;
}

static int32_t ili9806e_2_enter_sleep(struct panel_spec *self, uint8_t is_sleep)
{
	int32_t i;
	LCM_Init_Code *sleep_in_out = NULL;
	unsigned int tag;
	int32_t size = 0;

	mipi_gen_write_t mipi_gen_write = self->info.mipi->ops->mipi_gen_write;
	mipi_eotp_set_t mipi_eotp_set = self->info.mipi->ops->mipi_eotp_set;

	printk(KERN_DEBUG "ili9806e_2_enter_sleep, is_sleep = %d\n", is_sleep);

	if(is_sleep){
		sleep_in_out = sleep_in;
		size = ARRAY_SIZE(sleep_in);
	}else{
		sleep_in_out = sleep_out;
		size = ARRAY_SIZE(sleep_out);
	}
	mipi_eotp_set(1,0);

	for(i = 0; i <size ; i++){
		tag = (sleep_in_out->tag >>24);
		if(tag & LCM_TAG_SEND){
			mipi_gen_write(sleep_in_out->data, (sleep_in_out->tag & LCM_TAG_MASK));
		}else if(tag & LCM_TAG_SLEEP){
			//udelay((sleep_in_out->tag & LCM_TAG_MASK) * 1000);
			msleep((sleep_in_out->tag & LCM_TAG_MASK));
		}
		sleep_in_out++;
	}
	return 0;
}

static uint32_t ili9806e_2_readpowermode(struct panel_spec *self)
{
	int32_t i = 0;
	uint32_t j =0;
	LCM_Force_Cmd_Code * rd_prepare = rd_prep_code_1;
	uint8_t read_data[1] = {0};
	int32_t read_rtn = 0;
	unsigned int tag = 0;
	uint32_t reg_val_1 = 0;
	uint32_t reg_val_2 = 0;

	mipi_force_write_t mipi_force_write = self->info.mipi->ops->mipi_force_write;
	mipi_force_read_t mipi_force_read = self->info.mipi->ops->mipi_force_read;
	mipi_eotp_set_t mipi_eotp_set = self->info.mipi->ops->mipi_eotp_set;

	pr_debug("lcd_ili9806e_2_mipi read power mode!\n");
	mipi_eotp_set(0,1);

	for(j = 0; j < 4; j++){
		rd_prepare = rd_prep_code_1;
		for(i = 0; i < ARRAY_SIZE(rd_prep_code_1); i++){
			tag = (rd_prepare->real_cmd_code.tag >> 24);
			if(tag & LCM_TAG_SEND){
				mipi_force_write(rd_prepare->datatype, rd_prepare->real_cmd_code.data, (rd_prepare->real_cmd_code.tag & LCM_TAG_MASK));
			}else if(tag & LCM_TAG_SLEEP){
				msleep((rd_prepare->real_cmd_code.tag & LCM_TAG_MASK));
			}
			rd_prepare++;
		}

		read_rtn = mipi_force_read(0x0A, 1,(uint8_t *)read_data);
		//printk("lcd_ili9806e_2 mipi read power mode 0x0A value is 0x%x! , read result(%d)\n", read_data[0], read_rtn);

		if((0x9c == read_data[0])  && (0 == read_rtn)){
			pr_debug("lcd_ili9806e_2_mipi read power mode success!\n");
			mipi_eotp_set(1,1);
			return 0x9c;
		}
	}

	mipi_eotp_set(1,1);
	return 0x0;
}


static uint32_t ili9806e_2_check_esd(struct panel_spec *self)
{
	uint32_t power_mode;

	pr_debug("ili9806e_2_check_esd!\n");
	mipi_set_lp_mode_t mipi_set_data_lp_mode = self->info.mipi->ops->mipi_set_data_lp_mode;
	mipi_set_hs_mode_t mipi_set_data_hs_mode = self->info.mipi->ops->mipi_set_data_hs_mode;

	mipi_set_lp_mode_t mipi_set_lp_mode = self->info.mipi->ops->mipi_set_lp_mode;
	mipi_set_hs_mode_t mipi_set_hs_mode = self->info.mipi->ops->mipi_set_hs_mode;
	uint16_t work_mode = self->info.mipi->work_mode;

	if(SPRDFB_MIPI_MODE_CMD==work_mode){
		mipi_set_lp_mode();
	}else{
		mipi_set_data_lp_mode();
	}
	power_mode = ili9806e_2_readpowermode(self);
	//power_mode = 0x0;
	if(SPRDFB_MIPI_MODE_CMD==work_mode){
		mipi_set_hs_mode();
	}else{
		mipi_set_data_hs_mode();
	}
	if(power_mode == 0x9c){
		pr_debug("ili9806e_2_check_esd OK!\n");
		return 1;
	}else{
		printk("ili9806e_2_check_esd fail!(0x%x)\n", power_mode);
		return 0;
	}
}

static uint32_t ili9806e_2_mipi_after_suspend(struct panel_spec *self)
{
	return 0;
}

static struct panel_operations lcd_ili9806e_2_mipi_operations = {
	.panel_init = ili9806e_2_mipi_init,
	.panel_readid = ili9806e_2_readid,
	.panel_enter_sleep = ili9806e_2_enter_sleep,
	.panel_esd_check = ili9806e_2_check_esd,
	.panel_after_suspend = ili9806e_2_mipi_after_suspend,
};

static struct timing_rgb lcd_ili9806e_2_mipi_timing = {
	.hfp = 80, //60 /* unit: pixel */// 100
	.hbp = 80,//80
	.hsync = 10,//60
	.vfp = 20, /*unit: line*/
	.vbp = 16, //14
	.vsync =4, //6,
};

static struct info_mipi lcd_ili9806e_2_mipi_info = {
	.work_mode  = SPRDFB_MIPI_MODE_VIDEO,
	.video_bus_width = 24, /*18,16*/
	.lan_number = 2,
	.phy_feq = 400*1000, //500->10MHz,400->8M in lp mode
	.h_sync_pol = SPRDFB_POLARITY_POS,
	.v_sync_pol = SPRDFB_POLARITY_POS,
	.de_pol = SPRDFB_POLARITY_POS,
	.te_pol = SPRDFB_POLARITY_POS,
	.color_mode_pol = SPRDFB_POLARITY_NEG,
	.shut_down_pol = SPRDFB_POLARITY_NEG,
	.timing = &lcd_ili9806e_2_mipi_timing,
	.ops = NULL,
};

struct panel_spec lcd_ili9806e_2_mipi_spec = {
	//.cap = PANEL_CAP_NOT_TEAR_SYNC,
	.width = 480,
	.height = 800,
	.fps = 59,
	.type = LCD_MODE_DSI,
	.direction = LCD_DIRECT_NORMAL,
	.is_clean_lcd = true,
	.reset_timing = {5, 15, 120},
	.info = {
		.mipi = &lcd_ili9806e_2_mipi_info
	},
	.ops = &lcd_ili9806e_2_mipi_operations,
};

struct panel_cfg lcd_ili9806e_2_mipi = {
	/* this panel can only be main lcd */
	.dev_id = SPRDFB_MAINLCD_ID,
	.lcd_id = 0x980602,
	.lcd_name = "lcd_ili9806e_2_mipi",
	.panel = &lcd_ili9806e_2_mipi_spec,
};

static int __init lcd_ili9806e_2_mipi_init(void)
{
	return sprdfb_panel_register(&lcd_ili9806e_2_mipi);
}

subsys_initcall(lcd_ili9806e_2_mipi_init);