/* drivers/video/sprdfb/lcd_hx8369b_mipi.c
 *
 * Support for hx8369b 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"
#include <mach/gpio.h>

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

#define MAX_DATA   150
#define LCD_NEW_PANEL

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[] = {

#ifndef LCD_NEW_PANEL
	{LCM_SEND(6),{4,0,0xB9,0xFF,0x83,0x69}},
	{LCM_SEND(13),{11,0,0xB1,0x0B,0x83,0x77,0x00,0x11,0x11,0x08,0x08,0x0C,0x12}},
	{LCM_SEND(7),{5,0,0xC6,0x41,0xFF,0x7A,0xFF}},
	{LCM_SEND(7),{5,0,0xE3,0x00,0x00,0x00,0x00}},
	{LCM_SEND(9),{7,0,0xC0,0x73,0x50,0x00,0x34,0xC4,0x00}},
	{LCM_SEND(18),{16,0,0xBA,0x31,0x00,0x16,0xCA,0xB0,0x0A,0x00,0x10,0x28,0x02,0x21,0x21,0x9A,0x1A,0x8F}},
	{LCM_SEND(2),{0x3A,0x70}},
	{LCM_SEND(10),{8,0,0xB3,0x83,0x00,0x31,0x03,0x01,0x13,0x06}},
	{LCM_SEND(2),{0xB4,0x00}},
	{LCM_SEND(2),{0xCC,0x0C}},
	{LCM_SEND(2),{0xEA,0x72}},
	{LCM_SEND(2),{0xB2,0x03}},

	//set GIP timing control
	{LCM_SEND(95),{93, 0, 0xD5,
		0x00, 0x00, 0x0D, 0x00, 0x00, 0x00, 0x00, 0x12, 0x40, 0x00,\
		0x00, 0x00, 0x01, 0x60, 0x37, 0x00, 0x00, 0x0F, 0x01, 0x02,\
		0x47, 0x03, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\
		0x00, 0x00, 0x03, 0x00, 0x00, 0x18, 0x00, 0x00, 0x89, 0x00,\
		0x11, 0x33, 0x55, 0x77, 0x31, 0x00, 0x00, 0x98, 0x00, 0x66,\
		0x44, 0x22, 0x00, 0x02, 0x00, 0x00, 0x89, 0x00, 0x00, 0x22,\
		0x44, 0x66, 0x20, 0x00, 0x00, 0x98, 0x00, 0x77, 0x55, 0x33,\
		0x11, 0x13, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x03,\
		0x00, 0xCF, 0xFF, 0xFF, 0x03, 0x00, 0xCF, 0xFF, 0xFF, 0x20,\
		0x8C, 0x5A}},

	//gamma setting
	{LCM_SEND(38),{36, 0, 0xE0,
		0x00, 0x00, 0x00, 0x0D, 0x0C, 0x3F, 0x18, 0x2C, 0x04, 0x0F,\
		0x0E, 0x14, 0x17, 0x15, 0x16, 0x10, 0x13, 0x00, 0x00, 0x00,\
		0x0C, 0x12, 0x3F, 0x17, 0x2C, 0x05, 0x08, 0x0E, 0x12, 0x16,\
		0x14, 0x15, 0x11, 0x13, 0x01}},
	{LCM_SEND(130),{128, 0, 0xC1,
		0x01, 0x00, 0x08, 0x10, 0x18, 0x1F, 0x27, 0x2E, 0x34, 0x3E,\
		0x48, 0x50, 0x58, 0x60, 0x68, 0x70, 0x78, 0x80, 0x88, 0x90,\
		0x98, 0xA0, 0xA8, 0xB0, 0xB8, 0xC0, 0xC8, 0xD0, 0xD8, 0xE0,\
		0xE8, 0xF0, 0xF7, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\
		0x00, 0x00, 0x00, 0x00, 0x08, 0x10, 0x18, 0x1F, 0x27, 0x2E,\
		0x34, 0x3E, 0x48, 0x50, 0x58, 0x60, 0x68, 0x70, 0x78, 0x80,\
		0x88, 0x90, 0x98, 0xA0, 0xA8, 0xB0, 0xB8, 0xC0, 0xC8, 0xD0,\
		0xD8, 0xE0, 0xE8, 0xF0, 0xF7, 0xFF, 0x00, 0x00, 0x00, 0x00,\
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x10, 0x18, 0x1F,\
		0x27, 0x2E, 0x34, 0x3E, 0x48, 0x50, 0x58, 0x60, 0x68, 0x70,\
		0x78, 0x80, 0x88, 0x90, 0x98, 0xA0, 0xA8, 0xB0, 0xB8, 0xC0,\
		0xC8, 0xD0, 0xD8, 0xE0, 0xE8, 0xF0, 0xF7, 0xFF, 0x00, 0x00,\
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}},

	{LCM_SEND(1),{0x11}},
	{LCM_SLEEP(120)},
	{LCM_SEND(1),{0x29}},
#else
	/* Password */
	{LCM_SEND(5),{3,0,0xF0,0x5A,0x5A}},
		{LCM_SEND(5),{3,0,0xF1,0x5A,0x5A}},
		{LCM_SEND(5),{3,0,0xFC,0xA5,0xA5}},

		/* Resolution Control */
		{LCM_SEND(2),{0xB3, 0x01}},
		{LCM_SEND(2),{0xB5, 0x10}},
		{LCM_SEND(6),{4,0,0xBC,0x00,0x29,0x51}}, /* 141006 Battery detect function disabled */

		/* MIPI SETTING */
		{LCM_SEND(5),{3,0,0xE3,0x24,0x2C}},

		/* Display Inversion Off */
		{LCM_SEND(1),{0x21}},

		/* Display Control */
		{LCM_SEND(11), {9,0,0xF2,0x11,0x04,0x08,0x10,0x10,0x72,0x4A,0x0A}},

		/* power control 1 */
		{LCM_SEND(8),{6,0,0xF3,0x91,0x00,0x00,0x00,0x10}},

		/* power control 2 */
		{LCM_SEND(46),{44,0,0xF4,0x01,0x02,0x23,0x24,0x25,0x25,0x26,0x26,0x29,0x29,0x2C,0x2B,0x2C,0x07,0x08,0x05,0x04,0x04,0x01,0x01,0x22,0x0A,0x17,0x0F,0x11,0x23,0x0D,0x0A,0x0B,0x02,0x19,0x13,0x1E,0x1F,0x23,0x20,0x05,0x16,0x1A,0x16,0x1E,0x24,0x1E}},

		/* power control 3 */
		{LCM_SEND(31),{29,0,0xF5,0x14,0x14,0xB9,0x21,0x35,0x55,0x36,0x0A,0x00,0x39,0x00,0x00,0x0B,0x4B,0xC4,0xCB,0x4B,0x12,0x12,0x1A,0x00,0x10,0xE0,0xE2,0x0E,0x34,0x34,0x03}},

		/* 9.4 */
		{LCM_SEND(20),{18,0,0xFE,0x00,0x02,0x01,0x39,0x60,0x40,0x21,0x00,0x4B,0x00,0x80,0x00,0xF0,0x00,0x00,0x00,0x06}},

		/* ASG EQ Control */
		{LCM_SEND(13),{11,0,0xEE,0x40,0xA0,0x40,0xA0,0x00,0x00,0x00,0x00,0x00,0x00}},

		{LCM_SEND(23),{21,0,0xEF,0x23,0x01,0x00,0x00,0x2A,0x49,0x08,0x27,0x21,0x40,0x10,0x24,0x02,0x21,0x21,0x03,0x03,0x40,0x00,0x08}},

		/* Panel Gate Control */
		{LCM_SEND(33),{31,0,0xF7,0x02,0x1B,0x1A,0x00,0x01,0x0E,0x0E,0x0A,0x0A,0x0F,0x0F,0x0B,0x0B,0x05,0x07,0x02,0x1B,0x1A,0x00,0x01,0x0C,0x0C,0x08,0x08,0x0D,0x0D,0x09,0x09,0x04,0x06}},

		/* Source Control */
		{LCM_SEND(9),{7,0,0xF6,0x63,0x25,0x15,0x00,0x00,0x20}},

		/* Memory Data Access Control */
		{LCM_SEND(2),{0x36,0x10}},

		/* Positive Gamma Control */
		{LCM_SEND(20),{18,0,0xFA,0x0C,0x36,0x0B,0x10,0x07,0x0C,0x10,0x10,0x14,0x1D,0x1F,0x1F,0x20,0x21,0x22,0x25,0x2F}},

		/* Negative Gamma Control */
		{LCM_SEND(20),{18,0,0xFB,0x0C,0x36,0x0B,0x10,0x07,0x0C,0x10,0x0E,0x0E,0x15,0x1B,0x1E,0x20,0x1F,0x20,0x25,0x2F}},

		/* display on */
		{LCM_SEND(1),{0x11}},
		{LCM_SLEEP(120)},

		{LCM_SEND(1),{0x29}},
		{LCM_SLEEP(120)},
#endif

};

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

static LCM_Init_Code sleep_in[] =  {
	{LCM_SEND(1), {0x28}},
	{LCM_SLEEP(150)}, 	//>150ms
	{LCM_SEND(1), {0x10}},
	{LCM_SLEEP(150)},	//>150ms
};

static LCM_Init_Code sleep_out[] =  {
	{LCM_SEND(1), {0x11}},
	{LCM_SLEEP(120)},//>120ms
	{LCM_SEND(1), {0x29}},
	{LCM_SLEEP(20)}, //>20ms
};
static int32_t hx8369b_mipi_init(struct panel_spec *self)
{
	int32_t i = 0;
	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_dcs_write_t mipi_dcs_write = self->info.mipi->ops->mipi_dcs_write;
	mipi_eotp_set_t mipi_eotp_set = self->info.mipi->ops->mipi_eotp_set;

	printk("kernel hx8369b_mipi_init\n");

	mipi_set_cmd_mode();
	mipi_eotp_set(0,0);

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

	return 0;
}

static uint32_t hx8369b_readid(struct panel_spec *self)
	{
		int32_t j =0;
		uint8_t read_data[4] = {0};
		int32_t read_rtn = 0;
		uint8_t param[2] = {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;

		LCD_PRINT("kernel lcd_hx8369b_mipi read id!\n");

		mipi_set_cmd_mode();
		mipi_eotp_set(0,0);

		for(j = 0; j < 4; j++){
#ifndef LCD_NEW_PANEL
		param[0] = 0x01;
		param[1] = 0x00;
		mipi_force_write(0x37, param, 2);
		read_rtn = mipi_force_read(0xda,1,&read_data[0]);
		LCD_PRINT("lcd_hx8369b_mipi read id 0xda value is 0x%x!\n",read_data[0]);

		read_rtn = mipi_force_read(0xdb,1,&read_data[1]);
		LCD_PRINT("lcd_hx8369b_mipi read id 0xdb value is 0x%x!\n",read_data[1]);

		read_rtn = mipi_force_read(0xdc,1,&read_data[2]);
		LCD_PRINT("lcd_hx8369b_mipi read id 0xdc value is 0x%x!\n",read_data[2]);

		if((0x55 == read_data[0])&&(0xbf == read_data[1] || 0xc0 == read_data[1] || 0xbe == read_data[1])&&(0x90 == read_data[2])){
				LCD_PRINT("lcd_hx8369b_mipi read id success!\n");
				return 0x8369;
		}
#else
		param[0] = 0x03;
		param[1] = 0x00;
		mipi_force_write(0x37, param, 2);
		read_rtn = mipi_force_read(0x04, 3, read_data);
		LCD_PRINT("lcd_s6d77a1_mipi read id 0xda, 0xdb,0xdc is 0x%x,0x%x,0x%x!\n",
				read_data[0], read_data[1], read_data[2]);
		if ((0x55 == read_data[0]) && (0xB8 == read_data[1])
				&& (0x10 == read_data[2])) {
			LCD_PRINT("lcd_s6d77a1_mipi read id success!\n");
			return 0x8369;
		}
#endif
		}

		mipi_eotp_set(0,0);

		return 0;
}


static int32_t hx8369b_enter_sleep(struct panel_spec *self, uint8_t is_sleep)
{
	int32_t i = 0;
	LCM_Init_Code *sleep_in_out = NULL;
	unsigned int tag;
	int32_t size = 0;

	mipi_set_cmd_mode_t mipi_set_cmd_mode = self->info.mipi->ops->mipi_set_cmd_mode;
	mipi_dcs_write_t mipi_dcs_write = self->info.mipi->ops->mipi_dcs_write;
	mipi_eotp_set_t mipi_eotp_set = self->info.mipi->ops->mipi_eotp_set;

	printk("kernel hx8369b_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_set_cmd_mode();
	mipi_eotp_set(0,0);

	for(i = 0; i <size ; i++){
		tag = (sleep_in_out->tag >>24);
		if(tag & LCM_TAG_SEND){
			mipi_dcs_write(sleep_in_out->data, (sleep_in_out->tag & LCM_TAG_MASK));
		}else if(tag & LCM_TAG_SLEEP){
			msleep(sleep_in_out->tag & LCM_TAG_MASK);
		}
		sleep_in_out++;
	}
	mipi_eotp_set(0,0);

	return 0;
}

static struct panel_operations lcd_hx8369b_mipi_operations = {
	.panel_init = hx8369b_mipi_init,
	.panel_readid = hx8369b_readid,
	.panel_enter_sleep = hx8369b_enter_sleep,
};

static struct timing_rgb lcd_hx8369b_mipi_timing = {
#ifndef LCD_NEW_PANEL
	.hfp = 115,  /* unit: pixel */
	.hbp = 55,
	.hsync = 4,
	.vfp = 6, /*unit: line*/
	.vbp = 19,
	.vsync = 4,
#else
	.hfp = 74,  /* unit: pixel */
	.hbp = 88,
	.hsync = 26,
	.vfp = 16, /* unit: line */
	.vbp = 12,
	.vsync = 4,
#endif
};


static struct info_mipi lcd_hx8369b_mipi_info = {
	.work_mode  = SPRDFB_MIPI_MODE_VIDEO,
	.video_bus_width = 24, /*18,16*/
	.lan_number = 	2,
	.phy_feq =481*1000,
	.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_hx8369b_mipi_timing,
	.ops = NULL,
};

struct panel_spec lcd_hx8369b_mipi_spec = {
	.width = 480,
	.height = 800,
	.fps	= 60,
	.type = LCD_MODE_DSI,
	.direction = LCD_DIRECT_NORMAL,
	.is_clean_lcd = true,
	.info = {
		.mipi = &lcd_hx8369b_mipi_info
	},
	.ops = &lcd_hx8369b_mipi_operations,
};
struct panel_cfg lcd_hx8369b_mipi = {
	/* this panel can only be main lcd */
	.dev_id = SPRDFB_MAINLCD_ID,
	.lcd_id = 0x8369,
	.lcd_name = "lcd_hx8369b_mipi",
	.panel = &lcd_hx8369b_mipi_spec,
};

//temp code
static int __init lcd_hx8369b_mipi_init(void)
{
/*
	printk("hx8369b_mipi_init: set lcd backlight.\n");

		 if (gpio_request(214, "LCD_BL")) {
			   printk("Failed ro request LCD_BL GPIO_%d \n",
					   214);
			   return -ENODEV;
		 }
		 gpio_direction_output(214, 1);
		 gpio_set_value(214, 1);
*/

	return sprdfb_panel_register(&lcd_hx8369b_mipi);
}

subsys_initcall(lcd_hx8369b_mipi_init);