调整配置使得能支持最低1帧的帧率

kernel-4.14/drivers/misc/mediatek/imgsensor/src/common/v1_1/imx291_mipi_raw/imx291mipi_Sensor.c

@@ -53,7 +53,7 @@ static struct imgsensor_info_struct imgsensor_info = {
 	.pre = {
 		.pclk = 148500000,				
         .linelength = 0x1130, //0x0898,   //2200         //record different mode's linelength
-        .framelength = 0x0465,  //0x0456 1110//0x08ca 2250,            //record different mode's framelength
+        .framelength = 0x41EB, //0x0465,  //0x0456 1110//0x08ca 2250,            //record different mode's framelength
         .startx = 0,                    //record different mode's startx of grabwindow
         .starty = 12,                    //record different mode's starty of grabwindow
         .grabwindow_width = 1920,        //record different mode's width of grabwindow
@@ -64,7 +64,7 @@ static struct imgsensor_info_struct imgsensor_info = {
 	.cap = {
 		.pclk = 148500000,				
         .linelength = 0x1130,
-        .framelength = 0x0465,
+        .framelength = 0x41EB, //0x0465,
         .startx = 0,
         .starty = 12,
         .grabwindow_width = 1920,
@@ -75,7 +75,7 @@ static struct imgsensor_info_struct imgsensor_info = {
 	.cap1 = {
 		.pclk = 148500000,				
         .linelength = 0x1130,
-        .framelength = 0x0465,
+        .framelength = 0x41EB, //0x0465,
         .startx = 0,
         .starty = 12,
         .grabwindow_width = 1920,
@@ -116,11 +116,11 @@ static struct imgsensor_info_struct imgsensor_info = {
         .grabwindow_width = 1920,
         .grabwindow_height = 1080,
 		.mipi_data_lp2hs_settle_dc = 85,
-		.max_framerate = 300,	
+		.max_framerate = 300,
 	},
-	.margin = 2,
+	.margin = 16,
 	.min_shutter = 1,
-	.max_frame_length = 0xffff,
+	.max_frame_length = 0xfffff,
 	.ae_shut_delay_frame = 0,
 	.ae_sensor_gain_delay_frame = 0,
 	.ae_ispGain_delay_frame = 2,
@@ -332,8 +332,14 @@ static void set_max_framerate(UINT16 framerate,kal_bool min_framelength_en)
     kal_uint32 frame_length = imgsensor.frame_length;
 
     LOG_INF("framerate = %d, min framelength should enable = %d\n", framerate,min_framelength_en);
-	   
+	
 	frame_length = imgsensor.pclk / framerate * 10 / imgsensor.line_length;
+	
+	// Allow 1fps
+    if (framerate < 1) {
+        framerate = 1;
+	}
+
 	spin_lock(&imgsensor_drv_lock);
 	imgsensor.frame_length = (frame_length > imgsensor.min_frame_length) ? frame_length : imgsensor.min_frame_length; 
 	imgsensor.dummy_line = imgsensor.frame_length - imgsensor.min_frame_length;
@@ -383,7 +389,7 @@ static void write_shutter(kal_uint16 shutter)
 				write_cmos_sensor(0x0104, 0x01);
 				write_cmos_sensor(0x3018, (imgsensor.frame_length&0x0000ff));
 				write_cmos_sensor(0x3019, (imgsensor.frame_length&0x00ff00)>>8);
-				write_cmos_sensor(0x301a, (imgsensor.frame_length&0x030000)>>16);
+				write_cmos_sensor(0x301a, (imgsensor.frame_length&0xff0000)>>16);
 				write_cmos_sensor(0x0104, 0x00);
 			}
 		} else {
@@ -391,7 +397,7 @@ static void write_shutter(kal_uint16 shutter)
 			write_cmos_sensor(0x0104, 0x01);
 			write_cmos_sensor(0x3018, (imgsensor.frame_length&0x0000ff));
 			write_cmos_sensor(0x3019, (imgsensor.frame_length&0x00ff00)>>8);
-			write_cmos_sensor(0x301a, (imgsensor.frame_length&0x030000)>>16);
+			write_cmos_sensor(0x301a, (imgsensor.frame_length&0xff0000)>>16);
 			write_cmos_sensor(0x0104, 0x00);
 		}
 		// Update Shutter
@@ -399,11 +405,12 @@ static void write_shutter(kal_uint16 shutter)
 		
 		LOG_INF("shutter1 =%d, framelength1 =%d\n", shutter,imgsensor.frame_length);
 		
-		if(shutter < 1)
+		if(shutter < 1) {
 			shutter = 1;
+		}
 
-		if(shutter > 1123)
-			shutter = 1123;	
+		// if(shutter > 1123)
+		//	shutter = 1123;	
 		
 		write_cmos_sensor(0x0104, 0x01);
 		write_cmos_sensor(0x3020, shutter&0xFF);

vendor/mediatek/proprietary/custom/mt6771/hal/imgsensor/ver1/imx291_mipi_raw/camera_AE_PLineTable_imx291mipiraw.h

@@ -14718,7 +14718,7 @@ Fno,20
 // Index MiniExp1/T MaxExp1/T MinGain MaxGain
 AETABLE_RPEVIEW_AUTO
 90,-50
-1,30000,30,1024,1024
+1,30000,1,1024,1024
 2,30,30,1024,4096
 3,30,20,4096,4096
 4,20,20,4096,10240
@@ -14732,7 +14732,7 @@ AETABLE_END
 // Index MiniExp1/T MaxExp1/T MinGain MaxGain
 AETABLE_CAPTURE_AUTO
 90,-50
-1,30000,30,1024,1024
+1,30000,1,1024,1024
 2,30,30,1024,4096
 3,30,20,4096,4096
 4,20,20,4096,10240