return ret;
}
-static bool pp_ad_bl_threshold_check(int al_thresh, int base, int prev_bl,
+static bool pp_ad_bl_threshold_check(int bl_min_delta, int base, int prev_bl,
int curr_bl)
{
- int bl_thresh = 0, diff = 0;
+ int bl_delta_factor = 0, diff = 0;
bool ret = false;
- pr_debug("al_thresh = %d, base = %d\n", al_thresh, base);
+ pr_debug("bl_min_delta = %d, base = %d\n", bl_min_delta, base);
if (base <= 0) {
pr_debug("Invalid base for threshold calculation %d\n", base);
return ret;
}
- bl_thresh = (curr_bl * al_thresh) / (base * 4);
+ bl_delta_factor = (curr_bl * bl_min_delta) / base;
diff = (curr_bl > prev_bl) ? (curr_bl - prev_bl) : (prev_bl - curr_bl);
- ret = (diff > bl_thresh) ? true : false;
- pr_debug("prev_bl =%d, curr_bl = %d, bl_thresh = %d, diff = %d, ret = %d\n",
- prev_bl, curr_bl, bl_thresh, diff, ret);
+ ret = (diff > bl_delta_factor) ? true : false;
+ pr_debug("prev_bl =%d, curr_bl = %d, bl_delta_factor = %d, diff = %d, ret = %d\n",
+ prev_bl, curr_bl, bl_delta_factor, diff, ret);
return ret;
}
ad_bl_out = temp;
}
- if (pp_ad_bl_threshold_check(ad->init.al_thresh, ad->init.alpha_base,
+ /* update AD backlight based on AD BL low limit */
+ ad_bl_out = (ad_bl_out < ad->bl_low_limit ?
+ ad->bl_low_limit : ad_bl_out);
+ if (pp_ad_bl_threshold_check(ad->bl_min_delta, ad->init.alpha_base,
ad->last_bl, ad_bl_out)) {
mfd->ad_bl_level = ad_bl_out;
pr_debug("backlight send to AD block: %d\n", mfd->ad_bl_level);
return ret;
}
+int mdss_mdp_ad_bl_config(struct msm_fb_data_type *mfd,
+ struct mdss_ad_bl_cfg *ad_bl_cfg)
+{
+ int ret = 0;
+ struct mdss_ad_info *ad;
+
+ ret = mdss_mdp_get_ad(mfd, &ad);
+ if (ret == -ENODEV || ret == -EPERM) {
+ pr_debug("AD not supported on device, disp num %d\n",
+ mfd->index);
+ return ret;
+ } else if (ret || !ad) {
+ pr_err("Failed to get ad info: ret = %d\n", ret);
+ return ret;
+ }
+
+ mutex_lock(&ad->lock);
+ ad->bl_min_delta = ad_bl_cfg->bl_min_delta;
+ ad->bl_low_limit = ad_bl_cfg->bl_low_limit;
+ mutex_unlock(&ad->lock);
+ return 0;
+}
+
int mdss_mdp_ad_input(struct msm_fb_data_type *mfd,
struct mdss_ad_input *input, int wait) {
int ret = 0;
ad->last_calib_valid = false;
ad->last_ad_data_valid = false;
ad->ipc_frame_count = 0;
+ ad->bl_min_delta = 0;
+ ad->bl_low_limit = 0;
ad->calc_itr = 0;
ad->calc_hw_num = PP_AD_BAD_HW_NUM;
memset(&ad->last_calib, 0, sizeof(ad->last_calib));
mdata->ad_cfgs[i].last_str = 0xFFFFFFFF;
mdata->ad_cfgs[i].last_bl = 0;
mdata->ad_cfgs[i].last_ad_data = 0;
+ mdata->ad_cfgs[i].bl_low_limit = 0;
+ mdata->ad_cfgs[i].bl_min_delta = 0;
memset(mdata->ad_cfgs[i].last_calib, 0,
sizeof(mdata->ad_cfgs[i].last_calib));
mdata->ad_cfgs[i].last_calib_valid = false;