[media] go7007: tuner/std related fixes

- The Adlink is initially detected as a sensor board, so the driver config
  is set up as if it was a sensor. Later the driver discovers that it really
  is a video capture card and that means that the driver configuration has
  to be updated for a PAL/NTSC capture card.
- Setup the correct initial std based on the TV tuner type.
- Remember the exact std the user selected, don't map it to STD_PAL or NTSC.
- Use v4l2_disable_ioctl to disable ioctls based on the board config and
  drop a lot of checking code in each of those ioctls since that is no longer
  needed.
- enum_input should use tvnorms to fill its std field.
- configure the input, std and initial tuner frequency at driver initialization.
- fix std handling in the s2250 driver.
- the code handling scaling for devices without a scaler was broken. This is
  now fixed.
- correctly set readbuffers and capability in g/s_parm.
- remove the bogus test for capturemode in s_parm.
- correctly implement enum_framesizes/intervals.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/staging/media/go7007/go7007-driver.c

@@ -650,19 +650,7 @@ struct go7007 *go7007_alloc(struct go7007_board_info *board, struct device *dev)
 	init_waitqueue_head(&go->interrupt_waitq);
 	go->in_use = 0;
 	go->input = 0;
-	if (board->sensor_flags & GO7007_SENSOR_TV) {
-		go->standard = GO7007_STD_NTSC;
-		go->width = 720;
-		go->height = 480;
-		go->sensor_framerate = 30000;
-	} else {
-		go->standard = GO7007_STD_OTHER;
-		go->width = board->sensor_width;
-		go->height = board->sensor_height;
-		go->sensor_framerate = board->sensor_framerate;
-	}
-	go->encoder_v_offset = board->sensor_v_offset;
-	go->encoder_h_offset = board->sensor_h_offset;
+	go7007_update_board(go);
 	go->encoder_h_halve = 0;
 	go->encoder_v_halve = 0;
 	go->encoder_subsample = 0;
@@ -692,4 +680,25 @@ struct go7007 *go7007_alloc(struct go7007_board_info *board, struct device *dev)
 }
 EXPORT_SYMBOL(go7007_alloc);
 
+void go7007_update_board(struct go7007 *go)
+{
+	struct go7007_board_info *board = go->board_info;
+
+	if (board->sensor_flags & GO7007_SENSOR_TV) {
+		go->standard = GO7007_STD_NTSC;
+		go->std = V4L2_STD_NTSC_M;
+		go->width = 720;
+		go->height = 480;
+		go->sensor_framerate = 30000;
+	} else {
+		go->standard = GO7007_STD_OTHER;
+		go->width = board->sensor_width;
+		go->height = board->sensor_height;
+		go->sensor_framerate = board->sensor_framerate;
+	}
+	go->encoder_v_offset = board->sensor_v_offset;
+	go->encoder_h_offset = board->sensor_h_offset;
+}
+EXPORT_SYMBOL(go7007_update_board);
+
 MODULE_LICENSE("GPL v2");

drivers/staging/media/go7007/go7007-priv.h

@@ -200,6 +200,7 @@ struct go7007 {
 	int input;
 	int aud_input;
 	enum { GO7007_STD_NTSC, GO7007_STD_PAL, GO7007_STD_OTHER } standard;
+	v4l2_std_id std;
 	int sensor_framerate;
 	int width;
 	int height;
@@ -291,6 +292,8 @@ int go7007_start_encoder(struct go7007 *go);
 void go7007_parse_video_stream(struct go7007 *go, u8 *buf, int length);
 struct go7007 *go7007_alloc(struct go7007_board_info *board,
 					struct device *dev);
+void go7007_update_board(struct go7007 *go);
+
 /* go7007-fw.c */
 int go7007_construct_fw_image(struct go7007 *go, u8 **fw, int *fwlen);
 

drivers/staging/media/go7007/go7007-usb.c

@@ -1193,6 +1193,7 @@ static int go7007_usb_probe(struct usb_interface *intf,
 					"Adlink PCI-MPG24, channel #%d",
 					channel);
 			}
+			go7007_update_board(go);
 		}
 	}
 
@@ -1209,12 +1210,14 @@ static int go7007_usb_probe(struct usb_interface *intf,
 		case 1:
 			go->board_id = GO7007_BOARDID_PX_TV402U_EU;
 			go->tuner_type = TUNER_SONY_BTF_PG472Z;
+			go->std = V4L2_STD_PAL;
 			strncpy(go->name, "Plextor PX-TV402U-EU",
 					sizeof(go->name));
 			break;
 		case 2:
 			go->board_id = GO7007_BOARDID_PX_TV402U_JP;
 			go->tuner_type = TUNER_SONY_BTF_PK467Z;
+			go->std = V4L2_STD_NTSC_M_JP;
 			num_i2c_devs -= 2;
 			strncpy(go->name, "Plextor PX-TV402U-JP",
 					sizeof(go->name));

drivers/staging/media/go7007/s2250-board.c

@@ -354,18 +354,13 @@ static int s2250_s_std(struct v4l2_subdev *sd, v4l2_std_id norm)
 	u16 vidsource;
 
 	vidsource = (state->input == 1) ? 0x040 : 0x020;
-	switch (norm) {
-	case V4L2_STD_NTSC:
-		write_regs_fp(client, vid_regs_fp);
-		write_reg_fp(client, 0x20, vidsource | 1);
-		break;
-	case V4L2_STD_PAL:
+	if (norm & V4L2_STD_625_50) {
 		write_regs_fp(client, vid_regs_fp);
 		write_regs_fp(client, vid_regs_fp_pal);
 		write_reg_fp(client, 0x20, vidsource);
-		break;
-	default:
-		return -EINVAL;
+	} else {
+		write_regs_fp(client, vid_regs_fp);
+		write_reg_fp(client, 0x20, vidsource | 1);
 	}
 	state->std = norm;
 	return 0;