V4L/DVB (10729): zoran: convert to v4l2_device/v4l2_subdev.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/zoran/zoran.h

@@ -31,6 +31,8 @@
 #ifndef _BUZ_H_
 #define _BUZ_H_
 
+#include <media/v4l2-device.h>
+
 struct zoran_requestbuffers {
 	unsigned long count;	/* Number of buffers for MJPEG grabbing */
 	unsigned long size;	/* Size PER BUFFER in bytes */
@@ -339,7 +341,12 @@ struct zoran_fh {
 struct card_info {
 	enum card_type type;
 	char name[32];
-	u16 i2c_decoder, i2c_encoder;			/* I2C types */
+	const char *i2c_decoder;	/* i2c decoder device */
+	const char *mod_decoder;	/* i2c decoder module */
+	const unsigned short *addrs_decoder;
+	const char *i2c_encoder;	/* i2c encoder device */
+	const char *mod_encoder;	/* i2c encoder module */
+	const unsigned short *addrs_encoder;
 	u16 video_vfe, video_codec;			/* videocodec types */
 	u16 audio_chip;					/* audio type */
 
@@ -370,14 +377,15 @@ struct card_info {
 };
 
 struct zoran {
+	struct v4l2_device v4l2_dev;
 	struct video_device *video_dev;
 
 	struct i2c_adapter i2c_adapter;	/* */
 	struct i2c_algo_bit_data i2c_algo;	/* */
 	u32 i2cbr;
 
-	struct i2c_client *decoder;	/* video decoder i2c client */
-	struct i2c_client *encoder;	/* video encoder i2c client */
+	struct v4l2_subdev *decoder;	/* video decoder sub-device */
+	struct v4l2_subdev *encoder;	/* video encoder sub-device */
 
 	struct videocodec *codec;	/* video codec */
 	struct videocodec *vfe;	/* video front end */
@@ -481,6 +489,11 @@ struct zoran {
 	wait_queue_head_t test_q;
 };
 
+static inline struct zoran *to_zoran(struct v4l2_device *v4l2_dev)
+{
+	return container_of(v4l2_dev, struct zoran, v4l2_dev);
+}
+
 /* There was something called _ALPHA_BUZ that used the PCI address instead of
  * the kernel iomapped address for btread/btwrite.  */
 #define btwrite(dat,adr)    writel((dat), zr->zr36057_mem+(adr))

drivers/media/video/zoran/zoran_device.c

@@ -36,15 +36,12 @@
 #include <linux/proc_fs.h>
 #include <linux/i2c.h>
 #include <linux/i2c-algo-bit.h>
-#include <linux/videodev.h>
 #include <linux/videodev2.h>
 #include <media/v4l2-common.h>
 #include <linux/spinlock.h>
 #include <linux/sem.h>
 
 #include <linux/pci.h>
-#include <linux/video_decoder.h>
-#include <linux/video_encoder.h>
 #include <linux/delay.h>
 #include <linux/wait.h>
 
@@ -1000,9 +997,9 @@ zr36057_enable_jpg (struct zoran          *zr,
 		 * the video bus direction set to input.
 		 */
 		set_videobus_dir(zr, 0);
-		decoder_command(zr, VIDIOC_STREAMON, 0);
+		decoder_call(zr, video, s_stream, 1);
 		route.input = 0;
-		encoder_command(zr, VIDIOC_INT_S_VIDEO_ROUTING, &route);
+		encoder_call(zr, video, s_routing, &route);
 
 		/* Take the JPEG codec and the VFE out of sleep */
 		jpeg_codec_sleep(zr, 0);
@@ -1048,10 +1045,10 @@ zr36057_enable_jpg (struct zoran          *zr,
 		/* In motion decompression mode, the decoder output must be disabled, and
 		 * the video bus direction set to output.
 		 */
-		decoder_command(zr, VIDIOC_STREAMOFF, 0);
+		decoder_call(zr, video, s_stream, 0);
 		set_videobus_dir(zr, 1);
 		route.input = 1;
-		encoder_command(zr, VIDIOC_INT_S_VIDEO_ROUTING, &route);
+		encoder_call(zr, video, s_routing, &route);
 
 		/* Take the JPEG codec and the VFE out of sleep */
 		jpeg_codec_sleep(zr, 0);
@@ -1095,9 +1092,9 @@ zr36057_enable_jpg (struct zoran          *zr,
 		jpeg_codec_sleep(zr, 1);
 		zr36057_adjust_vfe(zr, mode);
 
-		decoder_command(zr, VIDIOC_STREAMON, 0);
+		decoder_call(zr, video, s_stream, 1);
 		route.input = 0;
-		encoder_command(zr, VIDIOC_INT_S_VIDEO_ROUTING, &route);
+		encoder_call(zr, video, s_routing, &route);
 
 		dprintk(2, KERN_INFO "%s: enable_jpg(IDLE)\n", ZR_DEVNAME(zr));
 		break;
@@ -1210,7 +1207,7 @@ static void zoran_restart(struct zoran *zr)
 	int status = 0, mode;
 
 	if (zr->codec_mode == BUZ_MODE_MOTION_COMPRESS) {
-		decoder_command(zr, VIDIOC_INT_G_INPUT_STATUS, &status);
+		decoder_call(zr, video, g_input_status, &status);
 		mode = CODEC_DO_COMPRESSION;
 	} else {
 		status = V4L2_IN_ST_NO_SIGNAL;
@@ -1590,14 +1587,14 @@ zoran_init_hardware (struct zoran *zr)
 
 	route.input = zr->card.input[zr->input].muxsel;
 
-	decoder_command(zr, VIDIOC_INT_INIT, NULL);
-	decoder_command(zr, VIDIOC_S_STD, &zr->norm);
-	decoder_command(zr, VIDIOC_INT_S_VIDEO_ROUTING, &route);
+	decoder_call(zr, core, init, 0);
+	decoder_s_std(zr, zr->norm);
+	decoder_s_routing(zr, &route);
 
-	encoder_command(zr, VIDIOC_INT_INIT, NULL);
-	encoder_command(zr, VIDIOC_INT_S_STD_OUTPUT, &zr->norm);
+	encoder_call(zr, core, init, 0);
+	encoder_call(zr, video, s_std_output, zr->norm);
 	route.input = 0;
-	encoder_command(zr, VIDIOC_INT_S_VIDEO_ROUTING, &route);
+	encoder_call(zr, video, s_routing, &route);
 
 	/* toggle JPEG codec sleep to sync PLL */
 	jpeg_codec_sleep(zr, 1);
@@ -1662,37 +1659,30 @@ zr36057_init_vfe (struct zoran *zr)
  * Interface to decoder and encoder chips using i2c bus
  */
 
-int
-decoder_command (struct zoran *zr,
-		 int           cmd,
-		 void         *data)
+int decoder_s_std(struct zoran *zr, v4l2_std_id std)
 {
-	if (zr->decoder == NULL)
-		return -EIO;
-
-	if (zr->card.type == LML33 &&
-	    (cmd == VIDIOC_S_STD || cmd == VIDIOC_INT_S_VIDEO_ROUTING)) {
-		int res;
+	int res;
 
-		// Bt819 needs to reset its FIFO buffer using #FRST pin and
-		// LML33 card uses GPIO(7) for that.
+	/* Bt819 needs to reset its FIFO buffer using #FRST pin and
+	   LML33 card uses GPIO(7) for that. */
+	if (zr->card.type == LML33)
 		GPIO(zr, 7, 0);
-		res = zr->decoder->driver->command(zr->decoder, cmd, data);
-		// Pull #FRST high.
-		GPIO(zr, 7, 1);
-		return res;
-	} else
-		return zr->decoder->driver->command(zr->decoder, cmd,
-						    data);
+	res = decoder_call(zr, tuner, s_std, std);
+	if (zr->card.type == LML33)
+		GPIO(zr, 7, 1); /* Pull #FRST high. */
+	return res;
 }
 
-int
-encoder_command (struct zoran *zr,
-		 int           cmd,
-		 void         *data)
+int decoder_s_routing(struct zoran *zr, struct v4l2_routing *route)
 {
-	if (zr->encoder == NULL)
-		return -1;
+	int res;
 
-	return zr->encoder->driver->command(zr->encoder, cmd, data);
+	/* Bt819 needs to reset its FIFO buffer using #FRST pin and
+	   LML33 card uses GPIO(7) for that. */
+	if (zr->card.type == LML33)
+		GPIO(zr, 7, 0);
+	res = decoder_call(zr, video, s_routing, route);
+	if (zr->card.type == LML33)
+		GPIO(zr, 7, 1); /* Pull #FRST high. */
+	return res;
 }

drivers/media/video/zoran/zoran_device.h

@@ -87,11 +87,12 @@ extern int jpg_bufsize;
 extern int pass_through;
 
 /* i2c */
-extern int decoder_command(struct zoran *zr,
-			   int cmd,
-			   void *data);
-extern int encoder_command(struct zoran *zr,
-			   int cmd,
-			   void *data);
+#define decoder_call(zr, o, f, args...) \
+	v4l2_subdev_call(zr->decoder, o, f, ##args)
+#define encoder_call(zr, o, f, args...) \
+	v4l2_subdev_call(zr->encoder, o, f, ##args)
+
+int decoder_s_std(struct zoran *zr, v4l2_std_id std);
+int decoder_s_routing(struct zoran *zr, struct v4l2_routing *route);
 
 #endif				/* __ZORAN_DEVICE_H__ */

drivers/media/video/zoran/zoran_driver.c

@@ -963,10 +963,6 @@ static int zoran_open(struct file *file)
 
 	lock_kernel();
 
-	/* see fs/device.c - the kernel already locks during open(),
-	 * so locking ourselves only causes deadlocks */
-	/*mutex_lock(&zr->resource_lock);*/
-
 	if (zr->user >= 2048) {
 		dprintk(1, KERN_ERR "%s: too many users (%d) on device\n",
 			ZR_DEVNAME(zr), zr->user);
@@ -974,32 +970,6 @@ static int zoran_open(struct file *file)
 		goto fail_unlock;
 	}
 
-	if (!zr->decoder) {
-		dprintk(1,
-			KERN_ERR "%s: no TV decoder loaded for device!\n",
-			ZR_DEVNAME(zr));
-		res = -EIO;
-		goto fail_unlock;
-	}
-
-	if (!try_module_get(zr->decoder->driver->driver.owner)) {
-		dprintk(1,
-			KERN_ERR
-			"%s: failed to grab ownership of video decoder\n",
-			ZR_DEVNAME(zr));
-		res = -EIO;
-		goto fail_unlock;
-	}
-	if (zr->encoder &&
-	    !try_module_get(zr->encoder->driver->driver.owner)) {
-		dprintk(1,
-			KERN_ERR
-			"%s: failed to grab ownership of video encoder\n",
-			ZR_DEVNAME(zr));
-		res = -EIO;
-		goto fail_decoder;
-	}
-
 	/* now, create the open()-specific file_ops struct */
 	fh = kzalloc(sizeof(struct zoran_fh), GFP_KERNEL);
 	if (!fh) {
@@ -1008,7 +978,7 @@ static int zoran_open(struct file *file)
 			"%s: zoran_open() - allocation of zoran_fh failed\n",
 			ZR_DEVNAME(zr));
 		res = -ENOMEM;
-		goto fail_encoder;
+		goto fail_unlock;
 	}
 	/* used to be BUZ_MAX_WIDTH/HEIGHT, but that gives overflows
 	 * on norm-change! */
@@ -1047,11 +1017,6 @@ static int zoran_open(struct file *file)
 
 fail_fh:
 	kfree(fh);
-fail_encoder:
-	if (zr->encoder)
-		module_put(zr->encoder->driver->driver.owner);
-fail_decoder:
-	module_put(zr->decoder->driver->driver.owner);
 fail_unlock:
 	unlock_kernel();
 
@@ -1104,8 +1069,8 @@ zoran_close(struct file  *file)
 		if (!pass_through) {	/* Switch to color bar */
 			struct v4l2_routing route = { 2, 0 };
 
-			decoder_command(zr, VIDIOC_STREAMOFF, 0);
-			encoder_command(zr, VIDIOC_INT_S_VIDEO_ROUTING, &route);
+			decoder_call(zr, video, s_stream, 0);
+			encoder_call(zr, video, s_routing, &route);
 		}
 	}
 
@@ -1113,13 +1078,6 @@ zoran_close(struct file  *file)
 	kfree(fh->overlay_mask);
 	kfree(fh);
 
-	/* release locks on the i2c modules */
-	module_put(zr->decoder->driver->driver.owner);
-	if (zr->encoder)
-		module_put(zr->encoder->driver->driver.owner);
-
-	/*mutex_unlock(&zr->resource_lock);*/
-
 	dprintk(4, KERN_INFO "%s: zoran_close() done\n", ZR_DEVNAME(zr));
 
 	return 0;
@@ -1567,20 +1525,20 @@ zoran_set_norm (struct zoran *zr,
 		int status = 0;
 		v4l2_std_id std = 0;
 
-		decoder_command(zr, VIDIOC_QUERYSTD, &std);
-		decoder_command(zr, VIDIOC_S_STD, &std);
+		decoder_call(zr, video, querystd, &std);
+		decoder_s_std(zr, std);
 
 		/* let changes come into effect */
 		ssleep(2);
 
-		decoder_command(zr, VIDIOC_INT_G_INPUT_STATUS, &status);
+		decoder_call(zr, video, g_input_status, &status);
 		if (status & V4L2_IN_ST_NO_SIGNAL) {
 			dprintk(1,
 				KERN_ERR
 				"%s: set_norm() - no norm detected\n",
 				ZR_DEVNAME(zr));
 			/* reset norm */
-			decoder_command(zr, VIDIOC_S_STD, &zr->norm);
+			decoder_s_std(zr, zr->norm);
 			return -EIO;
 		}
 
@@ -1599,8 +1557,8 @@ zoran_set_norm (struct zoran *zr,
 	if (on)
 		zr36057_overlay(zr, 0);
 
-	decoder_command(zr, VIDIOC_S_STD, &norm);
-	encoder_command(zr, VIDIOC_INT_S_STD_OUTPUT, &norm);
+	decoder_s_std(zr, norm);
+	encoder_call(zr, video, s_std_output, norm);
 
 	if (on)
 		zr36057_overlay(zr, 1);
@@ -1641,7 +1599,7 @@ zoran_set_input (struct zoran *zr,
 	route.input = zr->card.input[input].muxsel;
 	zr->input = input;
 
-	decoder_command(zr, VIDIOC_INT_S_VIDEO_ROUTING, &route);
+	decoder_s_routing(zr, &route);
 
 	return 0;
 }
@@ -1886,18 +1844,18 @@ jpgreqbuf_unlock_and_return:
 			goto gstat_unlock_and_return;
 		}
 
-		decoder_command(zr, VIDIOC_INT_S_VIDEO_ROUTING, &route);
+		decoder_s_routing(zr, &route);
 
 		/* sleep 1 second */
 		ssleep(1);
 
 		/* Get status of video decoder */
-		decoder_command(zr, VIDIOC_QUERYSTD, &norm);
-		decoder_command(zr, VIDIOC_INT_G_INPUT_STATUS, &status);
+		decoder_call(zr, video, querystd, &norm);
+		decoder_call(zr, video, g_input_status, &status);
 
 		/* restore previous input and norm */
 		route.input = zr->card.input[zr->input].muxsel;
-		decoder_command(zr, VIDIOC_INT_S_VIDEO_ROUTING, &route);
+		decoder_s_routing(zr, &route);
 gstat_unlock_and_return:
 		mutex_unlock(&zr->resource_lock);
 
@@ -2836,7 +2794,7 @@ static int zoran_queryctrl(struct file *file, void *__fh,
 	    ctrl->id > V4L2_CID_HUE)
 		return -EINVAL;
 
-	decoder_command(zr, VIDIOC_QUERYCTRL, ctrl);
+	decoder_call(zr, core, queryctrl, ctrl);
 
 	return 0;
 }
@@ -2852,7 +2810,7 @@ static int zoran_g_ctrl(struct file *file, void *__fh, struct v4l2_control *ctrl
 		return -EINVAL;
 
 	mutex_lock(&zr->resource_lock);
-	decoder_command(zr, VIDIOC_G_CTRL, ctrl);
+	decoder_call(zr, core, g_ctrl, ctrl);
 	mutex_unlock(&zr->resource_lock);
 
 	return 0;
@@ -2869,7 +2827,7 @@ static int zoran_s_ctrl(struct file *file, void *__fh, struct v4l2_control *ctrl
 		return -EINVAL;
 
 	mutex_lock(&zr->resource_lock);
-	decoder_command(zr, VIDIOC_S_CTRL, ctrl);
+	decoder_call(zr, core, s_ctrl, ctrl);
 	mutex_unlock(&zr->resource_lock);
 
 	return 0;
@@ -2924,7 +2882,7 @@ static int zoran_enum_input(struct file *file, void *__fh,
 
 	/* Get status of video decoder */
 	mutex_lock(&zr->resource_lock);
-	decoder_command(zr, VIDIOC_INT_G_INPUT_STATUS, &inp->status);
+	decoder_call(zr, video, g_input_status, &inp->status);
 	mutex_unlock(&zr->resource_lock);
 	return 0;
 }