[media] go7007: add support for ADS Tech DVD Xpress DX2

Taken from the 0.9.8-5 version of the out-of-tree wis-go7007 driver.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/staging/media/go7007/Kconfig

@@ -9,6 +9,7 @@ config VIDEO_GO7007
 	select VIDEO_SAA711X if MEDIA_SUBDRV_AUTOSELECT
 	select VIDEO_TW2804 if MEDIA_SUBDRV_AUTOSELECT
 	select VIDEO_TW9903 if MEDIA_SUBDRV_AUTOSELECT
+	select VIDEO_TW9906 if MEDIA_SUBDRV_AUTOSELECT
 	select VIDEO_OV7640 if MEDIA_SUBDRV_AUTOSELECT
 	select VIDEO_UDA1342 if MEDIA_SUBDRV_AUTOSELECT
 	default N

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

@@ -166,15 +166,24 @@ static int go7007_init_encoder(struct go7007 *go)
 		go7007_write_addr(go, 0x1000, 0x0811);
 		go7007_write_addr(go, 0x1000, 0x0c11);
 	}
-	if (go->board_id == GO7007_BOARDID_MATRIX_REV) {
+	switch (go->board_id) {
+	case GO7007_BOARDID_MATRIX_REV:
 		/* Set GPIO pin 0 to be an output (audio clock control) */
 		go7007_write_addr(go, 0x3c82, 0x0001);
 		go7007_write_addr(go, 0x3c80, 0x00fe);
-	}
-	if (go->board_id == GO7007_BOARDID_ADLINK_MPG24) {
+		break;
+	case GO7007_BOARDID_ADLINK_MPG24:
 		/* set GPIO5 to be an output, currently low */
 		go7007_write_addr(go, 0x3c82, 0x0000);
 		go7007_write_addr(go, 0x3c80, 0x00df);
+		break;
+	case GO7007_BOARDID_ADS_USBAV_709:
+		/* GPIO pin 0: audio clock control */
+		/*      pin 2: TW9906 reset */
+		/*      pin 3: capture LED */
+		go7007_write_addr(go, 0x3c82, 0x000d);
+		go7007_write_addr(go, 0x3c80, 0x00f2);
+		break;
 	}
 	return 0;
 }
@@ -282,6 +291,12 @@ int go7007_register_encoder(struct go7007 *go, unsigned num_i2c_devs)
 		go->i2c_adapter_online = 1;
 	}
 	if (go->i2c_adapter_online) {
+		if (go->board_id == GO7007_BOARDID_ADS_USBAV_709) {
+			/* Reset the TW9906 */
+			go7007_write_addr(go, 0x3c82, 0x0009);
+			msleep(50);
+			go7007_write_addr(go, 0x3c82, 0x000d);
+		}
 		for (i = 0; i < num_i2c_devs; ++i)
 			init_i2c_module(&go->i2c_adapter, &go->board_info->i2c_devs[i]);
 

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

@@ -43,6 +43,7 @@ struct go7007;
 #define GO7007_BOARDID_ENDURA		11
 #define GO7007_BOARDID_ADLINK_MPG24	12
 #define GO7007_BOARDID_SENSORAY_2250	13 /* Sensoray 2250/2251 */
+#define GO7007_BOARDID_ADS_USBAV_709    14
 
 /* Various characteristics of each board */
 #define GO7007_BOARD_HAS_AUDIO		(1<<0)

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

@@ -476,6 +476,43 @@ static const struct go7007_usb_board board_sensoray_2250 = {
 	},
 };
 
+static const struct go7007_usb_board board_ads_usbav_709 = {
+	.flags		= GO7007_USB_EZUSB,
+	.main_info	= {
+		.flags		 = GO7007_BOARD_HAS_AUDIO |
+					GO7007_BOARD_USE_ONBOARD_I2C,
+		.audio_flags	 = GO7007_AUDIO_I2S_MODE_1 |
+					GO7007_AUDIO_I2S_MASTER |
+					GO7007_AUDIO_WORD_16,
+		.audio_rate	 = 48000,
+		.audio_bclk_div	 = 8,
+		.audio_main_div	 = 2,
+		.hpi_buffer_cap  = 7,
+		.sensor_flags	 = GO7007_SENSOR_656 |
+					GO7007_SENSOR_TV |
+					GO7007_SENSOR_VBI,
+		.num_i2c_devs	 = 1,
+		.i2c_devs	 = {
+			{
+				.type	= "tw9906",
+				.is_video = 1,
+				.addr	= 0x44,
+			},
+		},
+		.num_inputs	 = 2,
+		.inputs		 = {
+			{
+				.video_input	= 0,
+				.name		= "Composite",
+			},
+			{
+				.video_input	= 10,
+				.name		= "S-Video",
+			},
+		},
+	},
+};
+
 static const struct usb_device_id go7007_usb_id_table[] = {
 	{
 		.match_flags	= USB_DEVICE_ID_MATCH_DEVICE_AND_VERSION |
@@ -577,6 +614,14 @@ static const struct usb_device_id go7007_usb_id_table[] = {
 		.bcdDevice_hi	= 0x1,
 		.driver_info	= (kernel_ulong_t)GO7007_BOARDID_SENSORAY_2250,
 	},
+	{
+		.match_flags	= USB_DEVICE_ID_MATCH_DEVICE_AND_VERSION,
+		.idVendor	= 0x06e1,  /* Vendor ID of ADS Technologies */
+		.idProduct	= 0x0709,  /* Product ID of DVD Xpress DX2 */
+		.bcdDevice_lo	= 0x204,
+		.bcdDevice_hi	= 0x204,
+		.driver_info	= (kernel_ulong_t)GO7007_BOARDID_ADS_USBAV_709,
+	},
 	{ }					/* Terminating entry */
 };
 
@@ -1086,6 +1131,10 @@ static int go7007_usb_probe(struct usb_interface *intf,
 		name = "Sensoray 2250/2251";
 		board = &board_sensoray_2250;
 		break;
+	case GO7007_BOARDID_ADS_USBAV_709:
+		name = "ADS Tech DVD Xpress DX2";
+		board = &board_ads_usbav_709;
+		break;
 	default:
 		printk(KERN_ERR "go7007-usb: unknown board ID %d!\n",
 				(unsigned int)id->driver_info);

drivers/staging/media/go7007/go7007-v4l2.c

@@ -512,6 +512,9 @@ static int go7007_start_streaming(struct vb2_queue *q, unsigned int count)
 	v4l2_ctrl_grab(go->mpeg_video_gop_closure, true);
 	v4l2_ctrl_grab(go->mpeg_video_bitrate, true);
 	v4l2_ctrl_grab(go->mpeg_video_aspect_ratio, true);
+	/* Turn on Capture LED */
+	if (go->board_id == GO7007_BOARDID_ADS_USBAV_709)
+		go7007_write_addr(go, 0x3c82, 0x0005);
 	return ret;
 }
 
@@ -534,6 +537,9 @@ static int go7007_stop_streaming(struct vb2_queue *q)
 	v4l2_ctrl_grab(go->mpeg_video_gop_closure, false);
 	v4l2_ctrl_grab(go->mpeg_video_bitrate, false);
 	v4l2_ctrl_grab(go->mpeg_video_aspect_ratio, false);
+	/* Turn on Capture LED */
+	if (go->board_id == GO7007_BOARDID_ADS_USBAV_709)
+		go7007_write_addr(go, 0x3c82, 0x000d);
 	return 0;
 }