/* drivers/video/sprdfb/lcd_sc7798d_mipi.c
 *
 * Support for sc7798d 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


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(6), {4, 0, 0xB9, 0xF1, 0x08, 0x00} },
	/*{LCM_SLEEP(10)},*/
	{LCM_SEND(10), {8, 0, 0xB1, 0x31, 0x0C, 0x0C, 0xA7, 0x33, 0x01, 0xB7} },
	{LCM_SEND(6), {4, 0, 0xC6, 0x00, 0x00, 0xFD} },
	{LCM_SEND(7), {5, 0, 0xE3, 0x03, 0x03, 0x03, 0x03} },
	{LCM_SEND(5), {3, 0, 0xB8, 0x06, 0x22} },
	{LCM_SLEEP(10)},
	{LCM_SEND(21), {19, 0, 0xBA, 0x31, 0x00, 0x44, 0x25, 0x91, 0x0A, 0x00, 0x00, 0xC2, 0x34, 0x00, 0x00, 0x04, 0x02, 0x1D, 
				0xB9, 0xEE, 0x40} },
	{LCM_SEND(11), {9, 0, 0xB3, 0x00, 0x00, 0x00, 0x00, 0x0C, 0x0A, 0x25, 0x20} },
	{LCM_SEND(2), {0xB4, 0x00} },
	{LCM_SEND(2), {0xCC, 0x0E} },
	{LCM_SEND(2), {0xBC, 0x67} },
	{LCM_SEND(2), {0xB2, 0x03} },
	{LCM_SEND(8), {6, 0, 0xC0, 0x73, 0x50, 0x00, 0x08, 0x70} },
	{LCM_SEND(54), {52, 0, 0xE9, 0x00, 0x00, 0x06, 0x00, 0x00, 0x6E, 0x29, 0x12, 0x30, 0x00, 0x48, 0x08, 0x6E, 0x29, 0x47, 
				0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x00, 0x00, 0x89, 0x98, 0x33, 0x11, 0x77, 0x55, 
				0x13, 0x00, 0x00, 0x89, 0x98, 0x22, 0x00, 0x66, 0x44, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 
				0x00, 0x00, 0x00, 0x00, 0x00, 0x00,} },
	{LCM_SEND(39), {37, 0, 0xEA, 0x00, 0x00, 0x98, 0x98, 0x44, 0x66, 0x00, 0x22, 0x20, 0x00, 0x00, 0x98, 0x98, 0x55, 0x77, 
				0x11, 0x33, 0x31, 0x30, 0x00, 0x00, 0xFF, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
				0x00, 0x00, 0x00, 0x00, 0x00, 0x00,} },
	{LCM_SEND(37), {35, 0, 0xE0, 0x01, 0x09, 0x0D, 0x2E, 0x36, 0x3F, 0x10, 0x31, 0x07, 0x0D, 0x11, 0x15, 0x13, 0x16, 0x15, 
				0x32, 0x38, 0x01, 0x05, 0x05, 0x30, 0x35, 0x3F, 0x0E, 0x30, 0x04, 0x09, 0x0A, 0x0D, 0x12, 
				0x0D, 0x0F, 0x2C, 0x35} },
	{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(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 sc7798d_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 sc7798d_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 sc7798d_readid(struct panel_spec *self)
{
	int32_t j =0;
	uint8_t read_data[3] = {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_sc7798d_mipi read id!\n");

	mipi_set_cmd_mode();
	mipi_eotp_set(0,0);

	for(j = 0; j < 4; j++){
		param[0] = 0x01;
		param[1] = 0x00;
		mipi_force_write(0x37, param, 2);
		read_rtn = mipi_force_read(0xda,1,&read_data[0]);
		read_rtn = mipi_force_read(0xdb,1,&read_data[1]);
		read_rtn = mipi_force_read(0xdc,1,&read_data[2]);

		if((0x55 == read_data[0])&&(0xB8 == read_data[1])&&(0xF0 == read_data[2]))
		{
			printk("lcd_sc7798d_mipi read id success!\n");
			return 0x55b8f0;
		}
	}
	mipi_eotp_set(0,0);
	LCD_PRINT("lcd_sc7798d_mipi read id fail! 0xda,0xdb,0xdc is 0x%x,0x%x,0x%x!\n",read_data[0],read_data[1],read_data[2]);
	return 0;
}


static int32_t sc7798d_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 sc7798d_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_sc7798d_mipi_operations = {
	.panel_init = sc7798d_mipi_init,
	.panel_readid = sc7798d_readid,
	.panel_enter_sleep = sc7798d_enter_sleep,
};

static struct timing_rgb lcd_sc7798d_mipi_timing = {
	.hfp = 145,  /* unit: pixel */
	.hbp = 90,
	.hsync = 70,
	.vfp = 10, /*unit: line*/
	.vbp = 12,
	.vsync = 4,
};


static struct info_mipi lcd_sc7798d_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_sc7798d_mipi_timing,
	.ops = NULL,
};
struct panel_spec lcd_sc7798d_mipi_spec = {
	.width = 480,
	.height = 800,
	.fps	= 60,
	.type = LCD_MODE_DSI,
	.direction = LCD_DIRECT_NORMAL,
	.info = {
		.mipi = &lcd_sc7798d_mipi_info
	},
	.ops = &lcd_sc7798d_mipi_operations,
};
struct panel_cfg lcd_sc7798d_mipi = {
	/* this panel can only be main lcd */
	.dev_id = SPRDFB_MAINLCD_ID,
	.lcd_id = 0x55b8f0,
	.lcd_name = "lcd_sc7798d_mipi",
	.panel = &lcd_sc7798d_mipi_spec,
};

//temp code
static int __init lcd_sc7798d_mipi_init(void)
{
	return sprdfb_panel_register(&lcd_sc7798d_mipi);
}

subsys_initcall(lcd_sc7798d_mipi_init);