/* drivers/video/sc8825/lcd_nt35516_mipi.c
 *
 * Support for nt35516 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/delay.h>
#include "../sprdfb_panel.h"

//#define LCD_Delay(ms)  uDelay(ms*1000)

#define MAX_DATA   56

typedef struct LCM_Init_Code_tag {
	unsigned int tag;
	unsigned char data[MAX_DATA];
}LCM_Init_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, 0xF0,0x55,0xAA,0x52,0x08,0x01}}, 

{LCM_SEND(6), {4, 0, 0xB0,0x09,0x09,0x09}}, 
{LCM_SEND(6), {4, 0, 0xB6,0x34,0x34,0x34}}, 
{LCM_SEND(6), {4, 0, 0xB1,0x09,0x09,0x09}}, 
{LCM_SEND(6), {4, 0, 0xB7,0x24,0x24,0x24}}, 
{LCM_SEND(6), {4, 0, 0xB3,0x05,0x05,0x05}}, 
{LCM_SEND(6), {4, 0, 0xB9,0x24,0x24,0x24}}, 

{LCM_SEND(2), {0xBF,0x01}}, 

{LCM_SEND(6), {4, 0, 0xB5,0x0B,0x0B,0x0B}}, 
{LCM_SEND(6), {4, 0, 0xBA,0x24,0x24,0x24}}, 
{LCM_SEND(6), {4, 0, 0xBC,0x00,0xA3,0x00}}, 
{LCM_SEND(6), {4, 0, 0xBD,0x00,0xA3,0x00}}, 

{LCM_SEND(5), {3, 0, 0xBE,0x00,0x58}}, 

{LCM_SEND(55), {53, 0, 0xD1,0x00,0x01,0x00,0x43,0x00,0x6B,0x00,0x87,0x00,0xA3,
0x00,0xCE,0x00,0xF1,0x01,0x27,0x01,0x53,0x01,0x98,0x01,0xCE,0x02,0x22,0x02,
0x83,0x02,0x78,0x02,0x9E,0x02,0xDD,0x03,0x00,0x03,0x2E,0x03,0x54,0x03,0x7F,
0x03,0x95,0x03,0xB3,0x03,0xC2,0x03,0xE1,0x03,0xF1,0x03,0xFE}}, 
{LCM_SEND(55), {53, 0, 0xD2,0x00,0x01,0x00,0x43,0x00,0x6B,0x00,0x87,0x00,0xA3,
0x00,0xCE,0x00,0xF1,0x01,0x27,0x01,0x53,0x01,0x98,0x01,0xCE,0x02,0x22,0x02,
0x83,0x02,0x78,0x02,0x9E,0x02,0xDD,0x03,0x00,0x03,0x2E,0x03,0x54,0x03,0x7F,
0x03,0x95,0x03,0xB3,0x03,0xC2,0x03,0xE1,0x03,0xF1,0x03,0xFE}}, 
{LCM_SEND(55), {53, 0, 0xD3,0x00,0x01,0x00,0x43,0x00,0x6B,0x00,0x87,0x00,0xA3,
0x00,0xCE,0x00,0xF1,0x01,0x27,0x01,0x53,0x01,0x98,0x01,0xCE,0x02,0x22,0x02,
0x83,0x02,0x78,0x02,0x9E,0x02,0xDD,0x03,0x00,0x03,0x2E,0x03,0x54,0x03,0x7F,
0x03,0x95,0x03,0xB3,0x03,0xC2,0x03,0xE1,0x03,0xF1,0x03,0xFE}}, 
{LCM_SEND(55), {53, 0, 0xD4,0x00,0x01,0x00,0x43,0x00,0x6B,0x00,0x87,0x00,0xA3,
0x00,0xCE,0x00,0xF1,0x01,0x27,0x01,0x53,0x01,0x98,0x01,0xCE,0x02,0x22,0x02,
0x83,0x02,0x78,0x02,0x9E,0x02,0xDD,0x03,0x00,0x03,0x2E,0x03,0x54,0x03,0x7F,
0x03,0x95,0x03,0xB3,0x03,0xC2,0x03,0xE1,0x03,0xF1,0x03,0xFE}}, 
{LCM_SEND(55), {53, 0, 0xD5,0x00,0x01,0x00,0x43,0x00,0x6B,0x00,0x87,0x00,0xA3,
0x00,0xCE,0x00,0xF1,0x01,0x27,0x01,0x53,0x01,0x98,0x01,0xCE,0x02,0x22,0x02,
0x83,0x02,0x78,0x02,0x9E,0x02,0xDD,0x03,0x00,0x03,0x2E,0x03,0x54,0x03,0x7F,
0x03,0x95,0x03,0xB3,0x03,0xC2,0x03,0xE1,0x03,0xF1,0x03,0xFE}}, 
{LCM_SEND(55), {53, 0, 0xD6,0x00,0x01,0x00,0x43,0x00,0x6B,0x00,0x87,0x00,0xA3,
0x00,0xCE,0x00,0xF1,0x01,0x27,0x01,0x53,0x01,0x98,0x01,0xCE,0x02,0x22,0x02,
0x83,0x02,0x78,0x02,0x9E,0x02,0xDD,0x03,0x00,0x03,0x2E,0x03,0x54,0x03,0x7F,
0x03,0x95,0x03,0xB3,0x03,0xC2,0x03,0xE1,0x03,0xF1,0x03,0xFE}},

{LCM_SEND(8), {6, 0, 0xF0,0x55,0xAA,0x52,0x08,0x00}},

{LCM_SEND(5), {3, 0, 0xB1,0xFC,0x04}}, 
{LCM_SEND(2), {0x36,0x02}},
{LCM_SEND(2), {0xB6,0x0A}},
{LCM_SEND(5), {3, 0, 0xB7,0x00,0x00}}, 
{LCM_SEND(7), {5, 0, 0xB8,0x01,0x05,0x05,0x05}}, 
{LCM_SEND(2), {0xBA,0x01}}, 
{LCM_SEND(6), {4, 0, 0xBC,0x00,0x00,0x00}}, 
{LCM_SEND(8), {6, 0, 0xBD,0x01,0x84,0x07,0x32,0x00}}, 
{LCM_SEND(8), {6, 0, 0xBE,0x01,0x84,0x07,0x31,0x00}}, 
{LCM_SEND(8), {6, 0, 0xBF,0x01,0x84,0x07,0x31,0x00}}, 
{LCM_SEND(2), {0x35,0x00}},// Tearing Effect On 
{LCM_SEND(6), {4, 0, 0xCC,0x03,0x00,0x00}}, 
{LCM_SEND(2), {0x3A, 0x77}},

{LCM_SEND(1), {0x11}}, // sleep out 
{LCM_SLEEP(120),},
{LCM_SEND(1), {0x29}}, // display on 
{LCM_SLEEP(100),},
{LCM_SEND(1), {0x2c}}, // normal on 


};

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

static LCM_Init_Code sleep_in[] =  {
{LCM_SEND(1), {0x28}},
{LCM_SLEEP(10)},
{LCM_SEND(1), {0x10}},
{LCM_SLEEP(120)},
{LCM_SEND(2), {0x4f, 0x01}},
};

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

static LCM_Init_Code change_fps_40[] =  {
{LCM_SEND(8), {6, 0, 0xF0,0x55,0xAA,0x52,0x08,0x00}},
{LCM_SEND(8), {6, 0, 0xBD,0x02,0x46,0x1C,0x1C,0x00}},
{LCM_SEND(8), {6, 0, 0xF0,0x55,0xAA,0x52,0x00,0x00}},
};

static LCM_Init_Code change_fps_60[] =  {
{LCM_SEND(8), {6, 0, 0xF0,0x55,0xAA,0x52,0x08,0x00}},
{LCM_SEND(8), {6, 0, 0xBD,0x01,0x84,0x1C,0x1C,0x00}},
{LCM_SEND(8), {6, 0, 0xF0,0x55,0xAA,0x52,0x00,0x00}},
};

static int32_t nt35510_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_gen_write_t mipi_gen_write = self->info.mipi->ops->mipi_gen_write;
	mipi_dcs_write_t mipi_dcs_write = self->info.mipi->ops->mipi_dcs_write;

	pr_debug(KERN_DEBUG "nt35510_mipi_init\n");

	mipi_set_cmd_mode();

	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){
			msleep((init->tag & LCM_TAG_MASK));
		}
		init++;
	}
	return 0;
}

static uint32_t nt35510_readid(struct panel_spec *self)
{
	/*Jessica TODO: need read id*/
	return 0x10;
}

static int32_t nt35510_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_dcs_write_t mipi_dcs_write = self->info.mipi->ops->mipi_dcs_write;
	mipi_gen_write_t mipi_gen_write = self->info.mipi->ops->mipi_gen_write;

	printk(KERN_DEBUG "nt35516_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);
	}

	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){
			msleep((sleep_in_out->tag & LCM_TAG_MASK));
		}
		sleep_in_out++;
	}
	return 0;
}

static int32_t nt35510_change_fps(struct panel_spec *self, int fps_level)
{
	int32_t i = 0;
	LCM_Init_Code *change_fps = NULL;
	unsigned int tag;
	int32_t size = 0;

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

	printk(KERN_DEBUG "nt35510_change_fps, fps_level = %d\n", fps_level);

	if(fps_level < 50){
		change_fps = change_fps_40;
		size = ARRAY_SIZE(change_fps_40);
	}else{
	    change_fps = change_fps_60;
		size = ARRAY_SIZE(change_fps_60);
    }

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

}

static struct panel_operations lcd_nt35510_mipi_operations = {
	.panel_init = nt35510_mipi_init,
	.panel_readid = nt35510_readid,
	.panel_enter_sleep = nt35510_enter_sleep,
	.panel_change_fps= nt35510_change_fps,
};

static struct timing_rgb lcd_nt35510_mipi_timing = {
	.hfp = 20,  /* unit: pixel */
	.hbp = 20,
	.hsync = 4,
	.vfp = 10, /*unit: line*/
	.vbp = 10,
	.vsync = 6,
};

static struct info_mipi lcd_nt35510_mipi_info = {
	.work_mode  = SPRDFB_MIPI_MODE_CMD,
	.video_bus_width = 24, /*18,16*/
	.lan_number = 2,
	.phy_feq = 500*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_nt35510_mipi_timing,
	.ops = NULL,
};

struct panel_spec lcd_nt35510_mipi_spec = {
	.width = 480,
	.height = 800,
	.type = LCD_MODE_DSI,
	.direction = LCD_DIRECT_NORMAL,
	.info = {
		.mipi = &lcd_nt35510_mipi_info
	},
	.ops = &lcd_nt35510_mipi_operations,
};


struct panel_cfg lcd_nt35510_mipi = {
	/* this panel can only be main lcd */
	.dev_id = SPRDFB_MAINLCD_ID,
	.lcd_id = 0x10,
	.lcd_name = "lcd_nt35510_mipi",
	.panel = &lcd_nt35510_mipi_spec,
};

static int __init lcd_nt35510_mipi_init(void)
{
	return sprdfb_panel_register(&lcd_nt35510_mipi);
}

subsys_initcall(lcd_nt35510_mipi_init);