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/* 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);
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