void spi_gen(unsigned char spi_data)
{
int bit;
unsigned char mask;
for (bit = 7; bit >= 0; bit--) {
mask = (unsigned char)1 << bit;
LCD_SPI_CLK_LO;
if (spi_data & mask) {
LCD_SPI_SET_DI(1);
} else {
LCD_SPI_SET_DI(0);
}
LCD_SPI_CLK_HI;
}
}
void spi_gen(unsigned char spi_cmd, unsigned char spi_data)
{
int bit;
unsigned char mask;
if (spi_cmd <= CMD_DI_HI) {
udelay(SPI_DELAY);
LCD_SPI_CS_LO;
udelay(SPI_DELAY);
LCD_SPI_CLK_LO;
LCD_SPI_SET_DI(spi_cmd);
udelay(SPI_DELAY);
LCD_SPI_CLK_HI;
udelay(SPI_DELAY);
LCD_SPI_CLK_LO;
udelay(SPI_DELAY);
for (bit = 7; bit >= 0; bit--) {
mask = (unsigned char)1 << bit;
LCD_SPI_CLK_LO;
if (spi_data & mask) {
LCD_SPI_SET_DI(1);
} else {
LCD_SPI_SET_DI(0);
}
udelay(SPI_DELAY);
LCD_SPI_CLK_HI;
udelay(SPI_DELAY);
LCD_SPI_CLK_LO;
udelay(SPI_DELAY);
}
LCD_SPI_CS_HI;
} else if ( spi_cmd == CMD_DELAY ) {
// delay
LCD_SPI_CS_HI;
LCD_SPI_SET_DI(1);
LCD_SPI_CLK_LO;
mdelay(spi_data); //?ms
} else if ( spi_cmd == CMD_P2800 ) {
PowerOn2800();
} else {
pr_err("lcdc_auo: command = 0x%x is not supported\n", spi_cmd);
}
}
int ReadID(void)
{
int bit;
unsigned char mask;
int param;
unsigned int CMD[] = {
0xDA,
0xDB,
0xDC,
};
pr_debug("%s called\n", __func__);
for (param = 0; param < 3; param++) {
LCMID[param] = 0;
/* RDID CMD */
udelay(SPI_DELAY*2);
LCD_SPI_CS_LO;
udelay(SPI_DELAY);
LCD_SPI_CLK_LO;
LCD_SPI_SET_DI(0x00);
udelay(SPI_DELAY);
LCD_SPI_CLK_HI;
udelay(SPI_DELAY);
LCD_SPI_CLK_LO;
udelay(SPI_DELAY);
for (bit = 7; bit >= 0; bit--) {
mask = (unsigned char)1 << bit;
LCD_SPI_CLK_LO;
if (CMD[param] & mask) {
LCD_SPI_SET_DI(1);
} else {
LCD_SPI_SET_DI(0);
}
udelay(SPI_DELAY);
LCD_SPI_CLK_HI;
udelay(SPI_DELAY);
LCD_SPI_CLK_LO;
udelay(SPI_DELAY);
}
gpio_output_enable(GPIO_SPI_DI, 0);
udelay(SPI_DELAY);
LCMID[param] = 0;
for (bit = 7; bit >= 0; bit--) {
LCD_SPI_CLK_HI;
if (gpio_get_value(GPIO_SPI_DI))
LCMID[param] |= 1 << bit;
LCD_SPI_CLK_LO;
udelay(SPI_DELAY);
}
LCD_SPI_CS_HI;
udelay(SPI_DELAY);
pr_debug("%s CMD[] = 0x%02X LCMID[%d] = 0x%02X\n",
__func__, CMD[param], param, LCMID[param]);
gpio_output_enable(GPIO_SPI_DI, 1);
}
pr_debug("%s leaved\n", __func__);
return 0;
}
/* SAMSUNG LCM power on/off SPI commands */
void panel_poweron(int bOnOff)
{
unsigned long flag;
int i;
if (bOnOff == 1) {
driver_ic_state = 0;
pr_info("[SAMSUNG]panel_poweron ++ entering\n");
/* Start Power on sequence */
mdelay(25);
LCD_RST_HI;
mdelay(1);
LCD_RST_LO;
mdelay(1);
LCD_RST_HI;
mdelay(1);
gpio_tlmm_config(GPIO_CFG(GPIO_PCLK, 1, GPIO_OUTPUT, GPIO_PULL_DOWN, GPIO_6MA), GPIO_ENABLE);
gpio_tlmm_config(GPIO_CFG(GPIO_VSYNC, 1, GPIO_OUTPUT, GPIO_PULL_DOWN, GPIO_6MA), GPIO_ENABLE);
gpio_tlmm_config(GPIO_CFG(GPIO_HSYNC, 1, GPIO_OUTPUT, GPIO_PULL_DOWN, GPIO_6MA), GPIO_ENABLE);
gpio_tlmm_config(GPIO_CFG(GPIO_VDEN, 1, GPIO_OUTPUT, GPIO_PULL_DOWN, GPIO_6MA), GPIO_ENABLE);
gpio_tlmm_config(GPIO_CFG(GPIO_SPI_CLK, 0, GPIO_OUTPUT, GPIO_PULL_DOWN, GPIO_6MA), GPIO_ENABLE);
gpio_tlmm_config(GPIO_CFG(GPIO_SPI_DI, 0, GPIO_OUTPUT, GPIO_PULL_DOWN, GPIO_6MA), GPIO_ENABLE);
gpio_tlmm_config(GPIO_CFG(GPIO_SPI_CS, 0, GPIO_OUTPUT, GPIO_PULL_DOWN, GPIO_6MA), GPIO_ENABLE);
for(i = 0; i < 24; i++){
gpio_tlmm_config(GPIO_CFG(111 + i, 1, GPIO_OUTPUT, GPIO_PULL_DOWN, GPIO_6MA), GPIO_ENABLE);
}
LCD_SPI_CS_HI;
LCD_SPI_CLK_HI;
LCD_SPI_SET_DI(1);
mdelay(20);
/* QCT ADIE is playing or not */
spin_lock_irqsave(&lcdc_samsung_spin_lock, flag);
if (/*get_adie_flag() == 1 ||*/ bt_flag == 1) {
spin_unlock_irqrestore(&lcdc_samsung_spin_lock, flag);
InitializingSequence();
PowerOnSettingSequence();
SPI_Write_8bits(0x1d,0xa0); /* STB off */
#ifdef CONFIG_MACH_ACER_A3
msleep(50);
#else
mdelay(250);
#endif
SPI_Write_8bits(0x14,0x03); /*DISP ON */
} else {
InitializingSequence();
PowerOnSettingSequence();
SPI_Write_8bits(0x1d,0xa0); /* STB off */
#ifdef CONFIG_MACH_ACER_A3
mdelay(50);
#else
mdelay(250);
#endif
SPI_Write_8bits(0x14,0x03); /*DISP ON */
spin_unlock_irqrestore(&lcdc_samsung_spin_lock, flag);
}
pr_info("[SAMSUNG]panel_poweron -- leaving\n");
driver_ic_state = 1;
} else {
driver_ic_state = 0;
pr_info("[SAMSUNG]panel_poweroff ++ entering\n");
/* assign power-off table */
SPI_Write_8bits(0x14,0x00); /* DISP off */
#ifdef CONFIG_MACH_ACER_A3
msleep(80);
#else
mdelay(80);
#endif
SPI_Write_8bits(0x1d,0xa1); /* STB ON */
#ifdef CONFIG_MACH_ACER_A3
msleep(200);
#else
mdelay(200);
#endif
/* RESTB Active */
LCD_RST_LO;
mdelay(1);
LCD_RST_HI;
mdelay(1);
LCD_RST_LO;
pr_info("[SAMSUNG]panel_poweroff -- leaving\n");
}
}
