/*
* Caller must make sure the spi is ready
* */
static void amoled_set_gamma_val(int level)
{
lcm_write_cmd(samsung_oled_gamma_table[level]);
qspi_send_9bit(&gamma_update);
last_level = level;
}
static int lcm_write_seq(struct spi_msg cmd_table[], unsigned size)
{
int i;
for (i = 0; i < size; i++) {
lcm_write_cmd(cmd_table[i]);
}
return 0;
}
static int lcm_write_tb(struct lcm_cmd cmd_table[], unsigned size)
{
int i;
for (i = 0; i < size; i++) {
lcm_write_cmd(cmd_table[i].reg, cmd_table[i].val);
if (cmd_table[i].delay)
hr_msleep(cmd_table[i].delay);
}
return 0;
}
static int amoled_panel_unblank(struct msm_lcdc_panel_ops *panel_data)
{
LCMDBG("%s\n", __func__);
wake_lock(&panel_idle_lock);
table_sel_idx = 0;
mutex_lock(&panel_lock);
gamma_table_bank_select();
amoled_set_gamma_val(last_val);
qspi_send(0, 0xef);
qspi_send(1, 0xd0);
qspi_send(1, 0xe8);
lcm_write_cmd(0x14, 0x03);
mutex_unlock(&panel_lock);
wake_unlock(&panel_idle_lock);
LCMDBG("%s: last_val = %d\n", __func__,last_val);
led_trigger_event(amoled_lcd_backlight, LED_FULL);
return 0;
}
/*
* Caller must make sure the spi is ready
* */
static void amoled_set_gamma_val(int val)
{
int i;
int level;
int frac;
val = clamp(val, SAMSUNG_OLED_MIN_VAL, SAMSUNG_OLED_MAX_VAL);
val = (val / 2) * 2;
if (val < 31) {
val = 20;
}
level = (val - SAMSUNG_OLED_MIN_VAL) / SAMSUNG_OLED_LEVEL_STEP;
/*
LCMDBG("set brightness = (%d, %d)\n", level, val);
*/
frac = (val - SAMSUNG_OLED_MIN_VAL) % SAMSUNG_OLED_LEVEL_STEP;
for (i = 0; i < OLED_GAMMA_TABLE_SIZE; ++i) {
unsigned int v1;
unsigned int v2 = 0;
u8 v;
if (frac == 0) {
v = samsung_oled_gamma_table[level][i].val;
} else {
v1 = samsung_oled_gamma_table[level][i].val;
v2 = samsung_oled_gamma_table[level+1][i].val;
v = (v1 * (SAMSUNG_OLED_LEVEL_STEP - frac) +
v2 * frac) / SAMSUNG_OLED_LEVEL_STEP;
}
lcm_write_cmd(samsung_oled_gamma_table[level][i].reg, v);
}
gamma_table_bank_select();
last_val = val;
}
static int amoled_panel_unblank(struct platform_device *pdev)
{
LCMDBG("%s\n", __func__);
if (samsung_oled_panel_init())
printk(KERN_ERR "samsung_oled_panel_init failed\n");
wake_lock(&panel_idle_lock);
mutex_lock(&panel_lock);
table_sel_idx = 0;
gamma_table_bank_select();
amoled_set_gamma_val(last_val);
qspi_send(0, 0xef);
qspi_send(1, 0xd0);
qspi_send(1, 0xe8);
lcm_write_cmd(0x14, 0x03);
mutex_unlock(&panel_lock);
wake_unlock(&panel_idle_lock);
LCMDBG("%s: last_val = %d\n", __func__,last_val);
led_trigger_event(amoled_lcd_backlight, LED_FULL);
return 0;
}
static void gamma_table_bank_select(void)
{
lcm_write_cmd(0x39, table_sel_vals[table_sel_idx]);
table_sel_idx ^= 1;
}