tvafe: fix black border for atv [1/1]

PD#SWPL-3573

Problem:
appear black border after unplug/plug signal

Solution:
reset de when nosignal
restore acd hsync when signal unstable

Verify:
verified by x301

Change-Id: Ia9e2e9dfb326061bd3b9b6f9a02be0d935cdf06f
Signed-off-by: Nian Jing <nian.jing@amlogic.com>

drivers/amlogic/media/vin/tvin/tvafe/tvafe.c

@@ -645,6 +645,17 @@ bool tvafe_is_nosig(struct tvin_frontend_s *fe)
 	if ((port >= TVIN_PORT_CVBS0) && (port <= TVIN_PORT_CVBS3)) {
 		ret = tvafe_cvd2_no_sig(&tvafe->cvd2, &devp->mem);
 
+		/*fix black side when config atv snow*/
+		if (ret && (port == TVIN_PORT_CVBS3) &&
+			(devp->flags & TVAFE_FLAG_DEV_SNOW_FLAG) &&
+			(tvafe->cvd2.config_fmt == TVIN_SIG_FMT_CVBS_PAL_I) &&
+			(tvafe->cvd2.info.state != TVAFE_CVD2_STATE_FIND))
+			tvafe_snow_config_acd();
+		else if ((tvafe->cvd2.config_fmt == TVIN_SIG_FMT_CVBS_PAL_I) &&
+			(tvafe->cvd2.info.state == TVAFE_CVD2_STATE_FIND) &&
+			(port == TVIN_PORT_CVBS3))
+			tvafe_snow_config_acd_resume();
+
 		/* normal sigal & adc reg error, reload source mux */
 		if (tvafe->cvd2.info.adc_reload_en && !ret)
 			tvafe_set_source_muxing(port, devp->pinmux);

drivers/amlogic/media/vin/tvin/tvafe/tvafe_cvd.c

@@ -1872,15 +1872,15 @@ static void tvafe_cvd2_auto_de(struct tvafe_cvd2_s *cvd2)
 				W_APB_REG(ACD_REG_2E, tmp);
 				scene_colorful_old = 0;
 				if (cvd_dbg_en)
-					tvafe_pr_info("%s: vlines:%d, de_offset:%d tmp:%x\n",
+					tvafe_pr_info("%s: lrg vlines:%d, de_offset:%d tmp:%x\n",
 				__func__, l_ave, lines->de_offset, tmp);
 			}
 		} else {
 			if (lines->de_offset > 0) {
 				tmp = ((TVAFE_CVD2_PAL_DE_START -
-					lines->de_offset) << 16) |
+					lines->de_offset + 1) << 16) |
 					(288 + TVAFE_CVD2_PAL_DE_START -
-					lines->de_offset);
+					lines->de_offset + 1);
 				W_APB_REG(ACD_REG_2E, tmp);
 				scene_colorful_old = 0;
 				if (cvd_dbg_en)
@@ -1994,6 +1994,12 @@ static void tvafe_cvd2_reinit(struct tvafe_cvd2_s *cvd2)
 #ifdef TVAFE_SET_CVBS_PGA_EN
 	tvafe_cvd2_reset_pga();
 #endif
+	/*pali to nosignal,restore default vstart-end after auto de*/
+	if (cvd2->config_fmt == TVIN_SIG_FMT_CVBS_PAL_I) {
+		W_APB_REG(ACD_REG_2E, 0x170137);
+		if (cvd_dbg_en)
+			pr_info("[tvafe..] %s: reset auto de.\n", __func__);
+	}
 	/* init variable */
 	memset(&cvd2->info, 0, sizeof(struct tvafe_cvd2_info_s));
 	cvd2->cvd2_init_en = true;
@@ -2320,6 +2326,15 @@ inline void tvafe_cvd2_adj_hs(struct tvafe_cvd2_s *cvd2,
 			cvd2->info.hs_adj_level = 0;
 			acd_h = acd_h_back;
 		}
+	} else {
+		/*signal unstable,set default value*/
+		W_APB_REG(ACD_REG_2D, acd_h_back);
+		W_APB_BIT(CVD2_ACTIVE_VIDEO_HSTART, cvd_2e,
+					HACTIVE_START_BIT, HACTIVE_START_WID);
+		W_APB_BIT(ACD_REG_28, acd_128, 16, 5);
+		cvd2->info.hs_adj_en = 0;
+		cvd2->info.hs_adj_level = 0;
+		acd_h = acd_h_back;
 	}
 }
 
@@ -2637,7 +2652,6 @@ void tvafe_snow_config_acd(void)
 	/*0x8e035e is debug test result*/
 	if (acd_h_config)
 		W_APB_REG(ACD_REG_2D, acd_h_config);
-	acd_h = acd_h_back;
 }
 /*only for pal-i*/
 void tvafe_snow_config_acd_resume(void)

drivers/amlogic/media/vin/tvin/vdin/vdin_drv.h

@@ -377,8 +377,6 @@ extern void ldim_get_matrix(int *data, int reg_sel);
 extern void ldim_set_matrix(int *data, int reg_sel);
 extern void tvafe_snow_config(unsigned int onoff);
 extern void tvafe_snow_config_clamp(unsigned int onoff);
-extern void tvafe_snow_config_acd(void);
-extern void tvafe_snow_config_acd_resume(void);
 extern void vdin_vf_reg(struct vdin_dev_s *devp);
 extern void vdin_vf_unreg(struct vdin_dev_s *devp);
 extern void vdin_pause_dec(struct vdin_dev_s *devp);

drivers/amlogic/media/vin/tvin/vdin/vdin_sm.c

@@ -332,11 +332,8 @@ void tvin_smr(struct vdin_dev_s *devp)
 		++sm_p->state_cnt;
 #ifdef CONFIG_AMLOGIC_MEDIA_TVIN_AFE
 		if ((port == TVIN_PORT_CVBS3) &&
-			(devp->flags & VDIN_FLAG_SNOW_FLAG)) {
+			(devp->flags & VDIN_FLAG_SNOW_FLAG))
 			tvafe_snow_config_clamp(1);
-			/*fix black side when config atv snow*/
-			tvafe_snow_config_acd();
-		}
 #endif
 		if (sm_ops->nosig(devp->frontend)) {
 			sm_p->exit_nosig_cnt = 0;
@@ -475,11 +472,8 @@ void tvin_smr(struct vdin_dev_s *devp)
 		devp->unstable_flag = true;
 #ifdef CONFIG_AMLOGIC_MEDIA_TVIN_AFE
 		if ((port == TVIN_PORT_CVBS3) &&
-			(devp->flags & VDIN_FLAG_SNOW_FLAG)) {
+			(devp->flags & VDIN_FLAG_SNOW_FLAG))
 			tvafe_snow_config_clamp(0);
-			/*fix black side when config atv snow*/
-			tvafe_snow_config_acd_resume();
-		}
 #endif
 		if (sm_ops->nosig(devp->frontend)) {
 			nosig = true;