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#include <linux/string.h>
#ifdef BUILD_UBOOT
#include <asm/arch/mt6575_gpio.h>
#else
#include <mach/mt6575_gpio.h>
#endif
#include <cust_gpio_usage.h>
#include "lcm_drv.h"
// ---------------------------------------------------------------------------
// Local Constants
// ---------------------------------------------------------------------------
#define FRAME_WIDTH (480)
#define FRAME_HEIGHT (800)
#define LCM_ID (0x1408)
// ---------------------------------------------------------------------------
// Local Variables
// ---------------------------------------------------------------------------
static LCM_UTIL_FUNCS lcm_util = {0};
#define SET_RESET_PIN(v) (lcm_util.set_reset_pin((v)))
#define UDELAY(n) (lcm_util.udelay(n))
#define MDELAY(n) (lcm_util.mdelay(n))
// ---------------------------------------------------------------------------
// Local Functions
// ---------------------------------------------------------------------------
#define dsi_set_cmdq_V2(cmd, count, ppara, force_update) lcm_util.dsi_set_cmdq_V2(cmd, count, ppara, force_update)
#define dsi_set_cmdq(pdata, queue_size, force_update) lcm_util.dsi_set_cmdq(pdata, queue_size, force_update)
#define wrtie_cmd(cmd) lcm_util.dsi_write_cmd(cmd)
#define write_regs(addr, pdata, byte_nums) lcm_util.dsi_write_regs(addr, pdata, byte_nums)
#define read_reg lcm_util.dsi_read_reg()
#define read_reg_v2(cmd, buffer, buffer_size) lcm_util.dsi_dcs_read_lcm_reg_v2(cmd, buffer, buffer_size)
#define LCM_DSI_CMD_MODE
static void init_lcm_registers(void)
{
unsigned int data_array[16];
#if defined(LCM_DSI_CMD_MODE)
data_array[0] = 0x04B02300;//B0
dsi_set_cmdq(&data_array, 1, 1);
MDELAY(50);
data_array[0] = 0x00032902;//MIPI DSI Control
data_array[1] = 0x008352B6; //B6
dsi_set_cmdq(&data_array, 2, 1);
data_array[0] = 0x00152902;//BLC
data_array[1] = 0x090900B8; //B8
data_array[2] = 0xe6e6ffff;
data_array[3] = 0x10101802;
data_array[4] = 0xbe875a37;
data_array[5] = 0x000000ff;
data_array[6] = 0x00000000;
dsi_set_cmdq(&data_array, 7, 1);
MDELAY(50);
data_array[0] = 0x00052902;
data_array[1] = 0x02ff00B9; //B9
data_array[2] = 0x00000008;
dsi_set_cmdq(&data_array, 3, 1);
data_array[0] = 0x00102902; // panel driving setting 2
data_array[1] = 0x003143C1; //C1
data_array[2] = 0x12322626;
data_array[3] = 0xA50a4a28;
data_array[4] = 0x0121580F;
dsi_set_cmdq(&data_array, 5, 1);
data_array[0] = 0x28d62300;//D6
dsi_set_cmdq(&data_array, 1, 1);
MDELAY(100);
data_array[0] = 0x00053902;
data_array[1] = 0x0100002A;//2A
data_array[2] = 0x000000DF;
dsi_set_cmdq(&data_array, 3, 1);
MDELAY(50);
data_array[0] = 0x00053902;
data_array[1] = 0x0300002B;//2B
data_array[2] = 0x0000001f;
dsi_set_cmdq(&data_array, 3, 1);
MDELAY(50);
data_array[0] = 0x00361500;//36
dsi_set_cmdq(&data_array, 1, 1);
MDELAY(50);
data_array[0] = 0x00351500;//36
dsi_set_cmdq(&data_array, 1, 1);
MDELAY(50);
data_array[0] = 0x773A1500;//3A
dsi_set_cmdq(&data_array, 1, 1);
MDELAY(50);
data_array[0] = 0x00110500;//11
dsi_set_cmdq(&data_array, 1, 1);
MDELAY(125);
data_array[0] = 0x00290500;//29
dsi_set_cmdq(&data_array, 1, 1);
MDELAY(125);
#endif
}
// ---------------------------------------------------------------------------
// LCM Driver Implementations
// ---------------------------------------------------------------------------
static void lcm_set_util_funcs(const LCM_UTIL_FUNCS *util)
{
memcpy(&lcm_util, util, sizeof(LCM_UTIL_FUNCS));
}
static void lcm_get_params(LCM_PARAMS *params)
{
memset(params, 0, sizeof(LCM_PARAMS));
params->type = LCM_TYPE_DSI;
#if defined(LCM_DSI_CMD_MODE)
params->dsi.mode = CMD_MODE;
#else
params->dsi.mode = SYNC_EVENT_VDO_MODE;
#endif
params->ctrl = LCM_CTRL_PARALLEL_DBI;
//params->ctrl = LCM_CTRL_NONE;
params->width = FRAME_WIDTH;
params->height = FRAME_HEIGHT;
// enable tearing-free
params->dbi.te_mode = LCM_DBI_TE_MODE_VSYNC_ONLY;
// params->dbi.te_mode = LCM_DBI_TE_MODE_DISABLED;
params->dbi.te_edge_polarity = LCM_POLARITY_RISING;
// DSI
/* Command mode setting */
params->dsi.LANE_NUM = LCM_TWO_LANE;
//The following defined the fomat for data coming from LCD engine.
params->dsi.data_format.color_order = LCM_COLOR_ORDER_RGB;
params->dsi.data_format.trans_seq = LCM_DSI_TRANS_SEQ_MSB_FIRST;
params->dsi.data_format.padding = LCM_DSI_PADDING_ON_LSB;
params->dsi.data_format.format = LCM_DSI_FORMAT_RGB888;
// Highly depends on LCD driver capability.
params->dsi.packet_size=256;
// Video mode setting
params->dsi.PS=LCM_PACKED_PS_24BIT_RGB888;
params->dsi.word_count=480*3;
params->dsi.vertical_sync_active=2;
params->dsi.vertical_backporch=2;
params->dsi.vertical_frontporch=2;
params->dsi.vertical_active_line=800;
params->dsi.line_byte=2180; // 2256 = 752*3
params->dsi.horizontal_sync_active_byte=26;
params->dsi.horizontal_backporch_byte=206;
params->dsi.horizontal_frontporch_byte=206;
params->dsi.rgb_byte=(480*3+6);
params->dsi.horizontal_sync_active_word_count=20;
params->dsi.horizontal_backporch_word_count=200;
params->dsi.horizontal_frontporch_word_count=200;
// Bit rate calculation
params->dsi.pll_div1=30; // fref=26MHz, fvco=fref*(div1+1) (div1=0~63, fvco=500MHZ~1GHz)
params->dsi.pll_div2=1; // div2=0~15: fout=fvo/(2*div2)
}
static void lcm_init(void)
{
lcm_util.set_gpio_out(GPIO_DISP_LRSTB_PIN, GPIO_OUT_ZERO);
MDELAY(25);
lcm_util.set_gpio_out(GPIO_DISP_LRSTB_PIN, GPIO_OUT_ONE);
MDELAY(50);
init_lcm_registers();
MDELAY(500);
// clear_panel();
}
static void lcm_suspend(void)
{
unsigned int data_array[16];
data_array[0]=0x00280500; // Display Off
dsi_set_cmdq(&data_array, 1, 1);
MDELAY(10);
data_array[0] = 0x00100500; // Sleep In
dsi_set_cmdq(data_array, 1, 1);
MDELAY(100);
}
static void lcm_resume(void)
{
unsigned int data_array[16];
data_array[0] = 0x00110500; // Sleep Out
dsi_set_cmdq(data_array, 1, 1);
MDELAY(100);
data_array[0] = 0x00290500; // Display On
dsi_set_cmdq(data_array, 1, 1);
MDELAY(10);
}
static void lcm_update(unsigned int x, unsigned int y,
unsigned int width, unsigned int height)
{
unsigned int x0 = x;
unsigned int y0 = y;
unsigned int x1 = x0 + width - 1;
unsigned int y1 = y0 + height - 1;
unsigned char x0_MSB = ((x0>>8)&0xFF);
unsigned char x0_LSB = (x0&0xFF);
unsigned char x1_MSB = ((x1>>8)&0xFF);
unsigned char x1_LSB = (x1&0xFF);
unsigned char y0_MSB = ((y0>>8)&0xFF);
unsigned char y0_LSB = (y0&0xFF);
unsigned char y1_MSB = ((y1>>8)&0xFF);
unsigned char y1_LSB = (y1&0xFF);
unsigned int data_array[16];
data_array[0]= 0x00053902;
data_array[1]= (x1_MSB<<24)|(x0_LSB<<16)|(x0_MSB<<8)|0x2a;
data_array[2]= (x1_LSB);
data_array[3]= 0x00053902;
data_array[4]= (y1_MSB<<24)|(y0_LSB<<16)|(y0_MSB<<8)|0x2b;
data_array[5]= (y1_LSB);
data_array[6]= 0x002c3909;
// data_array[6]= 0x002c3901;
dsi_set_cmdq(data_array, 7, 0);
}
static void lcm_setbacklight(unsigned int level)
{
unsigned int data_array[16];
data_array[0] = 0x00052902;
data_array[1] = 0x020000B9 | (level << 16); //B9
data_array[2] = 0x00000008;
dsi_set_cmdq(data_array, 3, 1);
}
static unsigned int lcm_compare_id(void)
{
unsigned int id = 0;
unsigned char buffer[5];
unsigned int array[16];
//NOTE:should reset LCM firstly
lcm_util.set_gpio_out(GPIO_DISP_LRSTB_PIN, GPIO_OUT_ZERO);
MDELAY(25);
lcm_util.set_gpio_out(GPIO_DISP_LRSTB_PIN, GPIO_OUT_ONE);
MDELAY(50);
array[0] = 0x00053700;// read id return 5 byte
dsi_set_cmdq(array, 1, 1);
array[0] = 0x04B02300;// unlock for reading ID
dsi_set_cmdq(array, 1, 1);
MDELAY(50);
read_reg_v2(0xBF, buffer, 5);
id = (buffer[2] << 8) | buffer[3]; //we only need ID
#if defined(BUILD_UBOOT)
printf("%s, id1 = 0x%x\n", __func__, id);
#endif
return (LCM_ID == id)?1:0;
}
LCM_DRIVER r61408_lcm_drv =
{
.name = "r61408",
.set_util_funcs = lcm_set_util_funcs,
.get_params = lcm_get_params,
.init = lcm_init,
.suspend = lcm_suspend,
.resume = lcm_resume,
.update = lcm_update,
.set_backlight = lcm_setbacklight,
.compare_id = lcm_compare_id
};
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