/* Periodic update */
bool nvsd_update_brightness(struct tegra_dc *dc)
{
u32 val = 0;
int cur_sd_brightness;
struct tegra_dc_sd_settings *settings = dc->out->sd_settings;
if (sd_brightness) {
if (atomic_read(&man_k_until_blank) &&
!settings->phase_in_adjustments) {
val = tegra_dc_readl(dc, DC_DISP_SD_CONTROL);
val &= ~SD_CORRECTION_MODE_MAN;
tegra_dc_writel(dc, val, DC_DISP_SD_CONTROL);
atomic_set(&man_k_until_blank, 0);
}
if (settings->cmd)
nvsd_cmd_handler(settings, dc);
/* nvsd_cmd_handler may turn off didim */
if (!settings->enable)
return true;
cur_sd_brightness = atomic_read(sd_brightness);
/* read brightness value */
val = tegra_dc_readl(dc, DC_DISP_SD_BL_CONTROL);
val = SD_BLC_BRIGHTNESS(val);
if (settings->phase_in_adjustments) {
return nvsd_phase_in_adjustments(dc, settings);
} else if (val != (u32)cur_sd_brightness) {
/* set brightness value and note the update */
atomic_set(sd_brightness, (int)val);
return true;
}
}
/* No update needed. */
return false;
}
/* Periodic update */
bool nvsd_update_brightness(struct tegra_dc *dc)
{
u32 val = 0;
int cur_sd_brightness;
int sw_sd_brightness;
struct tegra_dc_sd_settings *settings = dc->out->sd_settings;
bool nvsd_updated = false;
if (_sd_brightness) {
if (atomic_read(&man_k_until_blank) &&
!settings->phase_in_adjustments) {
val = tegra_dc_readl(dc, DC_DISP_SD_CONTROL);
val &= ~SD_CORRECTION_MODE_MAN;
tegra_dc_writel(dc, val, DC_DISP_SD_CONTROL);
atomic_set(&man_k_until_blank, 0);
}
if (settings->cmd)
nvsd_cmd_handler(settings, dc);
/* nvsd_cmd_handler may turn off didim */
if (!settings->enable)
return true;
cur_sd_brightness = atomic_read(_sd_brightness);
/* read brightness value */
val = tegra_dc_readl(dc, DC_DISP_SD_BL_CONTROL);
val = SD_BLC_BRIGHTNESS(val);
/* PRISM is updated by hw or sw algorithm. Brightness is
* compensated according to histogram for soft-clipping
* if hw output is used to update brightness. */
if (settings->phase_in_adjustments) {
nvsd_updated = nvsd_phase_in_adjustments(dc, settings);
} else if (settings->soft_clipping_enable &&
settings->soft_clipping_correction) {
sw_sd_brightness = nvsd_set_brightness(dc);
if (sw_sd_brightness != cur_sd_brightness) {
atomic_set(_sd_brightness, sw_sd_brightness);
nvsd_updated = true;
}
} else if (val != (u32)cur_sd_brightness) {
/* set brightness value and note the update */
atomic_set(_sd_brightness, (int)val);
nvsd_updated = true;
}
if (nvsd_updated) {
smooth_k_frames_left = smooth_k_duration_frames;
return true;
}
if (settings->smooth_k_enable) {
if (smooth_k_frames_left--)
return true;
else
smooth_k_frames_left = smooth_k_duration_frames;
}
}
/* No update needed. */
return false;
}
