/**
* Lousy function for automatic LCD initialization
*/
void lcd_initialize(void) {
unsigned char i;
// set relevant pins as outputs
LCD_DATA_DDR = ~DATA_MASK;
LCD_RS_DDR = 0;
LCD_RW_DDR = 0;
LCD_EN_DDR = 0;
LCD_BL_DDR = 0;
// initialize the display_config
for (i = 0; i < 6; i++) {
display_config[i] = 0x00;
}
LCD_RS = 0;
LCD_RW = 0;
// set 4-bit mode
_send_nibble(0b0010);
// function set
lcd_flags_set(FUNCTION_SET, DATA_LENGTH | CHAR_FONT, 0);
lcd_flags_set(FUNCTION_SET, DISPLAY_LINES, 1);
lcd_backlight_on();
lcd_display_on();
lcd_cursor_off();
lcd_blinking_off();
lcd_flags_set(ENTRY_MODE, CURSOR_INCREMENT, 1);
lcd_flags_set(ENTRY_MODE, ENABLE_SHIFTING, 0);
lcd_clear();
lcd_return_home();
}
/*---------------------------------------------------------------------------
功能： lcd 初始化
---------------------------------------------------------------------------*/
void __lcd_ili9325_init(void)
{
GPIO_PowerOn(CN_GPIO_F);
GPIO_PowerOn(CN_GPIO_G);
GPIO_CfgPinFunc(CN_GPIO_F,10,CN_GPIO_MODE_GPIO_OUT_OD_2Mhz);
GPIO_CfgPinFunc(CN_GPIO_G,8,CN_GPIO_MODE_GPIO_OUT_PP_2Mhz);
lcd_backlight_off();
lcd_reset();
Djy_DelayUs(100000);
if( __ili9325_read_reg() != 0x9325)
{
return;
}
__ili9325_write_reg(0x0000, 0x0001); //Start internal OSC
__ili9325_write_reg(0x0001, 0x0000); // set SS=0 and SM=0 S1---S720
__ili9325_write_reg(0x0002, 0x0700); // set 1 line inversion
__ili9325_write_reg(0x0003, 0x1030); // set GRAM write direction and BGR=1.
__ili9325_write_reg(0x0004, 0x0000); // Resize register
__ili9325_write_reg(0x0008, 0x0207); // set the back porch and front porch
__ili9325_write_reg(0x0009, 0x0000); // set non-display area refresh cycle ISC[3:0]
__ili9325_write_reg(0x000a, 0x0000); // FMARK function
__ili9325_write_reg(0x000c, 0x0000); // RGB interface setting
__ili9325_write_reg(0x000d, 0x0000); // Frame marker Position
__ili9325_write_reg(0x000f, 0x0000); // RGB interface polarity
//-------------power on sequence------------
__ili9325_write_reg(0x0010, 0x0000); // SAP, BT[3:0], AP, DSTB, SLP, STB
__ili9325_write_reg(0x0011, 0x0007); // DC1[2:0], DC0[2:0], VC[2:0]
__ili9325_write_reg(0x0012, 0x0000); // VREG1OUT voltage
__ili9325_write_reg(0x0013, 0x0000); // VDV[4:0] for VCOM amplitude
Djy_DelayUs(5000);
__ili9325_write_reg(0x0010, 0x1690); // SAP, BT[3:0], AP, DSTB, SLP, STB
__ili9325_write_reg(0x0011, 0x0227); // R11H=0x0221 at VCI=3.3V, DC1[2:0], DC0[2:0], VC[2:0]
Djy_DelayUs(5000);
__ili9325_write_reg(0x0012, 0x001d); // External reference voltage= Vci;001d
Djy_DelayUs(5000);
__ili9325_write_reg(0x0013, 0x0800); // R13H=1D00 when R12H=009D;VDV[4:0] for VCOM amplitude
__ili9325_write_reg(0x0029, 0x0014); // R29H=0013 when R12H=009D;VCM[5:0] for VCOMH
__ili9325_write_reg(0x002b, 0x000B); // Frame Rate = 96Hz
Djy_DelayUs(5000);
__ili9325_write_reg(0x0020, 0x0000); // GRAM horizontal Address
__ili9325_write_reg(0x0021, 0x0000); // GRAM Vertical Address
// ----------- Adjust the Gamma Curve ----------
__ili9325_write_reg(0x0030, 0x0007);
__ili9325_write_reg(0x0031, 0x0707);
__ili9325_write_reg(0x0032, 0x0006);
__ili9325_write_reg(0x0035, 0x0704);
__ili9325_write_reg(0x0036, 0x1F04);
__ili9325_write_reg(0x0037, 0x0004);
__ili9325_write_reg(0x0038, 0x0000);
__ili9325_write_reg(0x0039, 0x0706);
__ili9325_write_reg(0x003c, 0x0701);
__ili9325_write_reg(0x003d, 0x000F);
// ------------------ Set GRAM area ---------------
__ili9325_write_reg(0x0050, 0x0000); // Horizontal GRAM Start Address
__ili9325_write_reg(0x0051, 239); // Horizontal GRAM End Address
__ili9325_write_reg(0x0052, 0x0000); // Vertical GRAM Start Address
__ili9325_write_reg(0x0053, 319); // Vertical GRAM Start Address
__ili9325_write_reg(0x0060, 0x2700); // GS=0 320 line
__ili9325_write_reg(0x0061, 0x0001); // NDL,VLE（滚屏允许）, REV（灰度翻转）
__ili9325_write_reg(0x006a, 0x0000); // set scrolling line
// -------------- Partial Display Control ---------
__ili9325_write_reg(0x0080, 0x0000);
__ili9325_write_reg(0x0081, 0x0000);
__ili9325_write_reg(0x0082, 0x0000);
__ili9325_write_reg(0x0083, 0x0000);
__ili9325_write_reg(0x0084, 0x0000);
__ili9325_write_reg(0x0085, 0x0000);
// -------------- Panel Control -------------------
__ili9325_write_reg(0x0090, 0x0010);
__ili9325_write_reg(0x0092, 0x0000);
__ili9325_write_reg(0x0093, 0x0003);
__ili9325_write_reg(0x0095, 0x0110);
__ili9325_write_reg(0x0097, 0x0000);
__ili9325_write_reg(0x0098, 0x0000);
// Set GRAM write direction and BGR = 1
// I/D=11 (Horizontal : increment, Vertical : increment)
// AM=0 (address is updated in Horizontal writing direction)
__ili9325_write_reg(0x0003, 0x1030);
__ili9325_write_reg(0x0007, 0x0173); // 262K color and display ON
lcd_backlight_on();
}
static void lcd_on(void *board_data, struct fb_info *info)
{
lcd_backlight_on();
}
int main(void) {
int c;
char buff[100];
int offset = 0;
int started = 0;
//ctc_clocksInit(12000000,60000000,1);
//ctc_mamInit(MAM_FULLY_ENABLED);
//ramvectorsInit();
//busywaitInit();
VPBDIV = 0x00000001; /* PCLK = CCLK */
PLLCFG = 0x00000024; /* Fosc=12MHz, CCLK=60MHz */
PLLCON = 0x00000001; /* enable the PLL */
PLLFEED = 0x000000AA; /* feed sequence */
PLLFEED = 0x00000055;
while (!(PLLSTAT & 0x00000400));
PLLCON = 3; // enable and connect
PLLFEED = 0xAA;
PLLFEED = 0x55;
vicInit();
uart0Init();
DBG("Initializing USB stack\n");
usbInit();
vcomInit();
DBG("Starting USB communication\n");
interruptsEnable();
usbConnect();
lcdInit();
// echo any character received (do USB stuff in interrupt)
while (1) {
c = vcomGetchar();
if (c != -1) {
// show on console
if ((c == 9) || (c == 10) || (c == 13) || ((c >= 32) && (c <= 126))) {
uint8_t buf[2];
buf[0] = c; buf[1] = 0;
DBG((char*) buf);
} else {
DBG(".");
}
vcomPutchar(c);
if (c == 13) {
DBG("Cmd entered.\n");
buff[offset] = '\0';
offset = 0;
if (!strcmp(buff, "start"))
{
started = 1;
}
else if (started) {
if (!strcmp(buff, "bl-on"))
{
lcd_backlight_on();
}
else if (!strcmp(buff, "bl-off"))
{
lcd_backlight_off();
}
else if (!strcmp(buff, "clear"))
{
lcdClear();
}
else {
lcdPrintString(buff);
}
}
}
else {
buff[offset++] = c;
}
}
}
}
static void lcd_truely_1p3828_config_480_800()
{
int spi_fd, i;
char buf[64];
#ifndef LCD_BRIGHEST
int pwm_fd1, pwm_fd2;
int lcd_brightness;
int ret;
#endif
/* Power On */
lcd_power_on();
/* Hardware Reset */
lcd_reset();
#ifdef LCD_BRIGHEST
/* Backlight on */
lcd_backlight_on();
#endif
/* Program TRUELY_1P3828 to output 480x800 */
if (lcd_spi_dev_node(buf)) {
perror("Unable to get lcd spi bus_id or cs_id!\n");
goto lcd_truely_1p3828_config_480_800_exit;
}
spi_fd = open(buf, O_WRONLY);
if (spi_fd < 0) {
perror("Can't open TRUELY_1P3828_SPI_DEV_NODE to write");
goto lcd_truely_1p3828_config_480_800_exit;
} else {
truely_1p3828_set_spi_bus(spi_fd);
}
truely_1p3828_write_cmd(spi_fd, 0xB9); //Set_EXTC
truely_1p3828_write_data(spi_fd, 0xFF);
truely_1p3828_write_data(spi_fd, 0x83);
truely_1p3828_write_data(spi_fd, 0x69);
truely_1p3828_write_cmd(spi_fd, 0xB1); //Set Power
truely_1p3828_write_data(spi_fd, 0x01);
truely_1p3828_write_data(spi_fd, 0x00);
truely_1p3828_write_data(spi_fd, 0x34);
truely_1p3828_write_data(spi_fd, 0x06);
truely_1p3828_write_data(spi_fd, 0x00);
truely_1p3828_write_data(spi_fd, 0x0F); //
truely_1p3828_write_data(spi_fd, 0x0F);
truely_1p3828_write_data(spi_fd, 0x2A);
truely_1p3828_write_data(spi_fd, 0x32);
truely_1p3828_write_data(spi_fd, 0x3F);
truely_1p3828_write_data(spi_fd, 0x3F);
truely_1p3828_write_data(spi_fd, 0x07);
truely_1p3828_write_data(spi_fd, 0x23);
truely_1p3828_write_data(spi_fd, 0x01);
truely_1p3828_write_data(spi_fd, 0xE6);
truely_1p3828_write_data(spi_fd, 0xE6);
truely_1p3828_write_data(spi_fd, 0xE6);
truely_1p3828_write_data(spi_fd, 0xE6);
truely_1p3828_write_data(spi_fd, 0xE6);
truely_1p3828_write_cmd(spi_fd, 0xB2); // SET Display 480x800
truely_1p3828_write_data(spi_fd, 0x00);
truely_1p3828_write_data(spi_fd, 0x2b);
truely_1p3828_write_data(spi_fd, 0x0A);
truely_1p3828_write_data(spi_fd, 0x0A);
truely_1p3828_write_data(spi_fd, 0x70);
truely_1p3828_write_data(spi_fd, 0x00);
truely_1p3828_write_data(spi_fd, 0xFF);
truely_1p3828_write_data(spi_fd, 0x00);
truely_1p3828_write_data(spi_fd, 0x00);
truely_1p3828_write_data(spi_fd, 0x00);
truely_1p3828_write_data(spi_fd, 0x00);
truely_1p3828_write_data(spi_fd, 0x03);
truely_1p3828_write_data(spi_fd, 0x03);
truely_1p3828_write_data(spi_fd, 0x00);
truely_1p3828_write_data(spi_fd, 0x01);
truely_1p3828_write_cmd(spi_fd, 0xB4); // SET Display 480x800
truely_1p3828_write_data(spi_fd, 0x00);
truely_1p3828_write_data(spi_fd, 0x18);
truely_1p3828_write_data(spi_fd, 0x80);
truely_1p3828_write_data(spi_fd, 0x10);
truely_1p3828_write_data(spi_fd, 0x01);
truely_1p3828_write_cmd(spi_fd, 0xB6); // SET VCOM
truely_1p3828_write_data(spi_fd, 0x2C);
truely_1p3828_write_data(spi_fd, 0x2C);
truely_1p3828_write_cmd(spi_fd, 0xD5); //SET GIP
truely_1p3828_write_data(spi_fd, 0x00);
truely_1p3828_write_data(spi_fd, 0x05);
truely_1p3828_write_data(spi_fd, 0x03);
truely_1p3828_write_data(spi_fd, 0x00);
truely_1p3828_write_data(spi_fd, 0x01);
truely_1p3828_write_data(spi_fd, 0x09);
truely_1p3828_write_data(spi_fd, 0x10);
truely_1p3828_write_data(spi_fd, 0x80);
truely_1p3828_write_data(spi_fd, 0x37);
truely_1p3828_write_data(spi_fd, 0x37);
truely_1p3828_write_data(spi_fd, 0x20);
truely_1p3828_write_data(spi_fd, 0x31);
truely_1p3828_write_data(spi_fd, 0x46);
truely_1p3828_write_data(spi_fd, 0x8A);
truely_1p3828_write_data(spi_fd, 0x57);
truely_1p3828_write_data(spi_fd, 0x9B);
truely_1p3828_write_data(spi_fd, 0x20);
truely_1p3828_write_data(spi_fd, 0x31);
truely_1p3828_write_data(spi_fd, 0x46);
truely_1p3828_write_data(spi_fd, 0x8A);
truely_1p3828_write_data(spi_fd, 0x57);
truely_1p3828_write_data(spi_fd, 0x9B);
truely_1p3828_write_data(spi_fd, 0x07);
truely_1p3828_write_data(spi_fd, 0x0F);
truely_1p3828_write_data(spi_fd, 0x02);
truely_1p3828_write_data(spi_fd, 0x00);
truely_1p3828_write_cmd(spi_fd, 0xE0); //SET GAMMA
truely_1p3828_write_data(spi_fd, 0x00);
truely_1p3828_write_data(spi_fd, 0x08);
truely_1p3828_write_data(spi_fd, 0x0D);
truely_1p3828_write_data(spi_fd, 0x2D);
truely_1p3828_write_data(spi_fd, 0x34);
truely_1p3828_write_data(spi_fd, 0x3F);
truely_1p3828_write_data(spi_fd, 0x19);
truely_1p3828_write_data(spi_fd, 0x38);
truely_1p3828_write_data(spi_fd, 0x09);
truely_1p3828_write_data(spi_fd, 0x0E);
truely_1p3828_write_data(spi_fd, 0x0E);
truely_1p3828_write_data(spi_fd, 0x12);
truely_1p3828_write_data(spi_fd, 0x14);
truely_1p3828_write_data(spi_fd, 0x12);
truely_1p3828_write_data(spi_fd, 0x14);
truely_1p3828_write_data(spi_fd, 0x13);
truely_1p3828_write_data(spi_fd, 0x19);
truely_1p3828_write_data(spi_fd, 0x00);
truely_1p3828_write_data(spi_fd, 0x08);
truely_1p3828_write_data(spi_fd, 0x0D);
truely_1p3828_write_data(spi_fd, 0x2D);
truely_1p3828_write_data(spi_fd, 0x34);
truely_1p3828_write_data(spi_fd, 0x3F);
truely_1p3828_write_data(spi_fd, 0x19);
truely_1p3828_write_data(spi_fd, 0x38);
truely_1p3828_write_data(spi_fd, 0x09);
truely_1p3828_write_data(spi_fd, 0x0E);
truely_1p3828_write_data(spi_fd, 0x0E);
truely_1p3828_write_data(spi_fd, 0x12);
truely_1p3828_write_data(spi_fd, 0x14);
truely_1p3828_write_data(spi_fd, 0x12);
truely_1p3828_write_data(spi_fd, 0x14);
truely_1p3828_write_data(spi_fd, 0x13);
truely_1p3828_write_data(spi_fd, 0x19);
truely_1p3828_write_cmd(spi_fd, 0xC1); //set DGC
truely_1p3828_write_data(spi_fd, 0x01); //enable DGC function
truely_1p3828_write_data(spi_fd, 0x02); //SET R-GAMMA
truely_1p3828_write_data(spi_fd, 0x08);
truely_1p3828_write_data(spi_fd, 0x12);
truely_1p3828_write_data(spi_fd, 0x1A);
truely_1p3828_write_data(spi_fd, 0x22);
truely_1p3828_write_data(spi_fd, 0x2A);
truely_1p3828_write_data(spi_fd, 0x31);
truely_1p3828_write_data(spi_fd, 0x36);
truely_1p3828_write_data(spi_fd, 0x3F);
truely_1p3828_write_data(spi_fd, 0x48);
truely_1p3828_write_data(spi_fd, 0x51);
truely_1p3828_write_data(spi_fd, 0x58);
truely_1p3828_write_data(spi_fd, 0x60);
truely_1p3828_write_data(spi_fd, 0x68);
truely_1p3828_write_data(spi_fd, 0x70);
truely_1p3828_write_data(spi_fd, 0x78);
truely_1p3828_write_data(spi_fd, 0x80);
truely_1p3828_write_data(spi_fd, 0x88);
truely_1p3828_write_data(spi_fd, 0x90);
truely_1p3828_write_data(spi_fd, 0x98);
truely_1p3828_write_data(spi_fd, 0xA0);
truely_1p3828_write_data(spi_fd, 0xA7);
truely_1p3828_write_data(spi_fd, 0xAF);
truely_1p3828_write_data(spi_fd, 0xB6);
truely_1p3828_write_data(spi_fd, 0xBE);
truely_1p3828_write_data(spi_fd, 0xC7);
truely_1p3828_write_data(spi_fd, 0xCE);
truely_1p3828_write_data(spi_fd, 0xD6);
truely_1p3828_write_data(spi_fd, 0xDE);
truely_1p3828_write_data(spi_fd, 0xE6);
truely_1p3828_write_data(spi_fd, 0xEF);
truely_1p3828_write_data(spi_fd, 0xF5);
truely_1p3828_write_data(spi_fd, 0xFB);
truely_1p3828_write_data(spi_fd, 0xFC);
truely_1p3828_write_data(spi_fd, 0xFE);
truely_1p3828_write_data(spi_fd, 0x8C);
truely_1p3828_write_data(spi_fd, 0xA4);
truely_1p3828_write_data(spi_fd, 0x19);
truely_1p3828_write_data(spi_fd, 0xEC);
truely_1p3828_write_data(spi_fd, 0x1B);
truely_1p3828_write_data(spi_fd, 0x4C);
truely_1p3828_write_data(spi_fd, 0x40);
truely_1p3828_write_data(spi_fd, 0x02); //SET G-Gamma
truely_1p3828_write_data(spi_fd, 0x08);
truely_1p3828_write_data(spi_fd, 0x12);
truely_1p3828_write_data(spi_fd, 0x1A);
truely_1p3828_write_data(spi_fd, 0x22);
truely_1p3828_write_data(spi_fd, 0x2A);
truely_1p3828_write_data(spi_fd, 0x31);
truely_1p3828_write_data(spi_fd, 0x36);
truely_1p3828_write_data(spi_fd, 0x3F);
truely_1p3828_write_data(spi_fd, 0x48);
truely_1p3828_write_data(spi_fd, 0x51);
truely_1p3828_write_data(spi_fd, 0x58);
truely_1p3828_write_data(spi_fd, 0x60);
truely_1p3828_write_data(spi_fd, 0x68);
truely_1p3828_write_data(spi_fd, 0x70);
truely_1p3828_write_data(spi_fd, 0x78);
truely_1p3828_write_data(spi_fd, 0x80);
truely_1p3828_write_data(spi_fd, 0x88);
truely_1p3828_write_data(spi_fd, 0x90);
truely_1p3828_write_data(spi_fd, 0x98);
truely_1p3828_write_data(spi_fd, 0xA0);
truely_1p3828_write_data(spi_fd, 0xA7);
truely_1p3828_write_data(spi_fd, 0xAF);
truely_1p3828_write_data(spi_fd, 0xB6);
truely_1p3828_write_data(spi_fd, 0xBE);
truely_1p3828_write_data(spi_fd, 0xC7);
truely_1p3828_write_data(spi_fd, 0xCE);
truely_1p3828_write_data(spi_fd, 0xD6);
truely_1p3828_write_data(spi_fd, 0xDE);
truely_1p3828_write_data(spi_fd, 0xE6);
truely_1p3828_write_data(spi_fd, 0xEF);
truely_1p3828_write_data(spi_fd, 0xF5);
truely_1p3828_write_data(spi_fd, 0xFB);
truely_1p3828_write_data(spi_fd, 0xFC);
truely_1p3828_write_data(spi_fd, 0xFE);
truely_1p3828_write_data(spi_fd, 0x8C);
truely_1p3828_write_data(spi_fd, 0xA4);
truely_1p3828_write_data(spi_fd, 0x19);
truely_1p3828_write_data(spi_fd, 0xEC);
truely_1p3828_write_data(spi_fd, 0x1B);
truely_1p3828_write_data(spi_fd, 0x4C);
truely_1p3828_write_data(spi_fd, 0x40);
truely_1p3828_write_data(spi_fd, 0x02); //SET B-Gamma
truely_1p3828_write_data(spi_fd, 0x08);
truely_1p3828_write_data(spi_fd, 0x12);
truely_1p3828_write_data(spi_fd, 0x1A);
truely_1p3828_write_data(spi_fd, 0x22);
truely_1p3828_write_data(spi_fd, 0x2A);
truely_1p3828_write_data(spi_fd, 0x31);
truely_1p3828_write_data(spi_fd, 0x36);
truely_1p3828_write_data(spi_fd, 0x3F);
truely_1p3828_write_data(spi_fd, 0x48);
truely_1p3828_write_data(spi_fd, 0x51);
truely_1p3828_write_data(spi_fd, 0x58);
truely_1p3828_write_data(spi_fd, 0x60);
truely_1p3828_write_data(spi_fd, 0x68);
truely_1p3828_write_data(spi_fd, 0x70);
truely_1p3828_write_data(spi_fd, 0x78);
truely_1p3828_write_data(spi_fd, 0x80);
truely_1p3828_write_data(spi_fd, 0x88);
truely_1p3828_write_data(spi_fd, 0x90);
truely_1p3828_write_data(spi_fd, 0x98);
truely_1p3828_write_data(spi_fd, 0xA0);
truely_1p3828_write_data(spi_fd, 0xA7);
truely_1p3828_write_data(spi_fd, 0xAF);
truely_1p3828_write_data(spi_fd, 0xB6);
truely_1p3828_write_data(spi_fd, 0xBE);
truely_1p3828_write_data(spi_fd, 0xC7);
truely_1p3828_write_data(spi_fd, 0xCE);
truely_1p3828_write_data(spi_fd, 0xD6);
truely_1p3828_write_data(spi_fd, 0xDE);
truely_1p3828_write_data(spi_fd, 0xE6);
truely_1p3828_write_data(spi_fd, 0xEF);
truely_1p3828_write_data(spi_fd, 0xF5);
truely_1p3828_write_data(spi_fd, 0xFB);
truely_1p3828_write_data(spi_fd, 0xFC);
truely_1p3828_write_data(spi_fd, 0xFE);
truely_1p3828_write_data(spi_fd, 0x8C);
truely_1p3828_write_data(spi_fd, 0xA4);
truely_1p3828_write_data(spi_fd, 0x19);
truely_1p3828_write_data(spi_fd, 0xEC);
truely_1p3828_write_data(spi_fd, 0x1B);
truely_1p3828_write_data(spi_fd, 0x4C);
truely_1p3828_write_data(spi_fd, 0x40);
truely_1p3828_write_cmd(spi_fd, 0x2D);//Look up table
for(i = 0; i < 64; i++) {
truely_1p3828_write_data(spi_fd, 8 * i);
}
for(i = 0; i < 64; i++) {
truely_1p3828_write_data(spi_fd, 4 * i);
}
for(i = 0; i < 64; i++) {
truely_1p3828_write_data(spi_fd, 8 * i);
}
MSLEEP(10);
truely_1p3828_write_cmd(spi_fd, 0x3A); //Set COLMOD
truely_1p3828_write_data(spi_fd, 0x77);
truely_1p3828_write_cmd(spi_fd, 0x11); //Sleep Out
MSLEEP(120);
truely_1p3828_write_cmd(spi_fd, 0x29); //Display On
//truely_1p3828_write_cmd(spi_fd, 0x2C); //Display On
close(spi_fd);
#ifndef LCD_BRIGHEST
/* Backlight on */
pwm_fd1 = open(TRUELY_1P3828_PWM_PATH("max_brightness"), O_RDONLY);
if (pwm_fd1 < 0) {
perror("Can't open max_brightness to read");
goto lcd_truely_1p3828_config_480_800_exit;
}
ret = read(pwm_fd1, buf, sizeof(buf));
close(pwm_fd1);
if (ret <= 0) {
perror("Can't read max_brightness");
goto lcd_truely_1p3828_config_480_800_exit;
} else {
lcd_brightness = atoi(buf) / 2;
}
pwm_fd2 = open(TRUELY_1P3828_PWM_PATH("brightness"), O_WRONLY);
if (pwm_fd2 < 0) {
perror("Can't open brightness to write");
goto lcd_truely_1p3828_config_480_800_exit;
}
sprintf(buf, "%d", lcd_brightness);
ret = write(pwm_fd2, buf, sizeof(buf));
close(pwm_fd2);
if (ret <= 0) {
perror("Can't write brightness");
goto lcd_truely_1p3828_config_480_800_exit;
}
#endif
lcd_truely_1p3828_config_480_800_exit:
return;
}
