Staging: go7007: saa7134 updates

- Added documentation including README files from the original go7007
  driver package.
- Added Video4Linux2 MPEG controls.
- Added Video4Linux2 audio ioctls, which pass thru to the i2c driver.
- Improved saa7134 interface, to pass thru controls and video settings.
- Fixed a bug in sony tuner, as reported by Bifferos on the Go7007 wiki.
Signed-off-by: Pete Eberlein <pete@sensoray.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/go7007/go7007-driver.c

@@ -227,7 +227,7 @@ static int init_i2c_module(struct i2c_adapter *adapter, int id, int addr)
 		return 0;
 	if (modname != NULL)
 		printk(KERN_INFO
-			"go7007: probing for module %s failed", modname);
+			"go7007: probing for module %s failed\n", modname);
 	else
 		printk(KERN_INFO
 			"go7007: sensor %u seems to be unsupported!\n", id);

drivers/staging/go7007/go7007-priv.h

@@ -104,6 +104,7 @@ struct go7007_hpi_ops {
 	int (*stream_start)(struct go7007 *go);
 	int (*stream_stop)(struct go7007 *go);
 	int (*send_firmware)(struct go7007 *go, u8 *data, int len);
+	int (*send_command)(struct go7007 *go, unsigned int cmd, void *arg);
 };
 
 /* The video buffer size must be a multiple of PAGE_SIZE */

drivers/staging/go7007/go7007-usb.c

@@ -225,7 +225,7 @@ static struct go7007_usb_board board_px_tv402u = {
 		.inputs 	 = {
 			{
 				.video_input	= 1,
-		.audio_input	 = TVAUDIO_INPUT_EXTERN,
+				.audio_input	= TVAUDIO_INPUT_EXTERN,
 				.name		= "Composite",
 			},
 			{

drivers/staging/go7007/saa7134-go7007.c

@@ -27,7 +27,7 @@
 #include <linux/usb.h>
 #include <linux/i2c.h>
 #include <asm/byteorder.h>
-#include <media/audiochip.h>
+#include <media/v4l2-common.h>
 
 #include "saa7134-reg.h"
 #include "saa7134.h"
@@ -314,7 +314,13 @@ static int saa7134_go7007_stream_start(struct go7007 *go)
 static int saa7134_go7007_stream_stop(struct go7007 *go)
 {
 	struct saa7134_go7007 *saa = go->hpi_context;
-	struct saa7134_dev *dev = saa->dev;
+	struct saa7134_dev *dev;
+
+	if (!saa)
+		return -EINVAL;
+	dev = saa->dev;
+	if (!dev)
+		return -EINVAL;
 
 	/* Shut down TS FIFO */
 	saa_clearl(SAA7134_MAIN_CTRL, SAA7134_MAIN_CTRL_TE5);
@@ -373,6 +379,47 @@ static int saa7134_go7007_send_firmware(struct go7007 *go, u8 *data, int len)
 	return 0;
 }
 
+static int saa7134_go7007_send_command(struct go7007 *go, unsigned int cmd,
+					void *arg)
+{
+	struct saa7134_go7007 *saa = go->hpi_context;
+	struct saa7134_dev *dev = saa->dev;
+
+	switch (cmd) {
+	case VIDIOC_S_STD:
+	{
+		v4l2_std_id *std = arg;
+		return saa7134_s_std_internal(dev, NULL, std);
+	}
+	case VIDIOC_G_STD:
+	{
+		v4l2_std_id *std = arg;
+		*std = dev->tvnorm->id;
+		return 0;
+	}
+	case VIDIOC_QUERYCTRL:
+	{
+		struct v4l2_queryctrl *ctrl = arg;
+		if (V4L2_CTRL_ID2CLASS(ctrl->id) == V4L2_CTRL_CLASS_USER)
+			return saa7134_queryctrl(NULL, NULL, ctrl);
+	}
+	case VIDIOC_G_CTRL:
+	{
+		struct v4l2_control *ctrl = arg;
+		if (V4L2_CTRL_ID2CLASS(ctrl->id) == V4L2_CTRL_CLASS_USER)
+			return saa7134_g_ctrl_internal(dev, NULL, ctrl);
+	}
+	case VIDIOC_S_CTRL:
+	{
+		struct v4l2_control *ctrl = arg;
+		if (V4L2_CTRL_ID2CLASS(ctrl->id) == V4L2_CTRL_CLASS_USER)
+			return saa7134_s_ctrl_internal(dev, NULL, ctrl);
+	}
+	}
+	return -EINVAL;
+
+}
+
 static struct go7007_hpi_ops saa7134_go7007_hpi_ops = {
 	.interface_reset	= saa7134_go7007_interface_reset,
 	.write_interrupt	= saa7134_go7007_write_interrupt,
@@ -380,6 +427,7 @@ static struct go7007_hpi_ops saa7134_go7007_hpi_ops = {
 	.stream_start		= saa7134_go7007_stream_start,
 	.stream_stop		= saa7134_go7007_stream_stop,
 	.send_firmware		= saa7134_go7007_send_firmware,
+	.send_command		= saa7134_go7007_send_command,
 };
 
 /********************* Add/remove functions *********************/

drivers/staging/go7007/wis-sony-tuner.c

@@ -604,7 +604,7 @@ static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
 	{
 		struct v4l2_tuner *tun = arg;
 
-		memset(t, 0, sizeof(*tun));
+		memset(tun, 0, sizeof(*tun));
 		strcpy(tun->name, "Television");
 		tun->type = V4L2_TUNER_ANALOG_TV;
 		tun->rangelow = 0UL; /* does anything use these? */