Moves 32 bit ioctl compat handler to V4L sybsystem

From: Arnd Bergmann <arnd@arndb.de>

This moves the 32 bit ioctl compatibility handlers for
Video4Linux into a new file and adds explicit calls to them
to each v4l device driver.

Unfortunately, there does not seem to be any code handling
the v4l2 ioctls, so quite often the code goes through two
separate conversions, first from 32 bit v4l to 64 bit v4l,
and from there to 64 bit v4l2. My patch does not change
that, so there is still much room for improvement.

Also, some drivers have additional ioctl numbers, for
which the conversion should be handled internally to
that driver.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>

8 files changed, 80 insertions, 75 deletions

diff --git a/linux/drivers/media/video/Makefile b/linux/drivers/media/video/Makefile
index 6bd9ff71e..f24bc360b 100644
--- a/linux/drivers/media/video/Makefile
+++ b/linux/drivers/media/video/Makefile
@@ -9,7 +9,7 @@ zr36067-objs	:=	zoran_procfs.o zoran_device.o \
 			zoran_driver.o zoran_card.o
 tuner-objs	:=	tuner-core.o tuner-simple.o mt20xx.o tda8290.o tea5767.o
 
-obj-$(CONFIG_VIDEO_DEV) += videodev.o v4l2-common.o v4l1-compat.o
+obj-$(CONFIG_VIDEO_DEV) += videodev.o v4l2-common.o v4l1-compat.o compat_ioctl32.o
 
 obj-$(CONFIG_VIDEO_BT848) += bttv.o msp3400.o tvaudio.o \
 	tda7432.o tda9875.o ir-kbd-i2c.o ir-kbd-gpio.o
diff --git a/linux/drivers/media/video/bttv-driver.c b/linux/drivers/media/video/bttv-driver.c
index f32144b36..303d78b1b 100644
--- a/linux/drivers/media/video/bttv-driver.c
+++ b/linux/drivers/media/video/bttv-driver.c
@@ -1,5 +1,5 @@
 /*
-    $Id: bttv-driver.c,v 1.66 2005/11/08 18:02:29 nsh Exp $
+    $Id: bttv-driver.c,v 1.67 2005/11/09 18:30:51 mchehab Exp $
 
     bttv - Bt848 frame grabber driver
 
@@ -3115,6 +3115,7 @@ static struct file_operations bttv_fops =
 	.open	  = bttv_open,
 	.release  = bttv_release,
 	.ioctl	  = bttv_ioctl,
+	.compat_ioctl	= v4l_compat_ioctl32,
 	.llseek	  = no_llseek,
 	.read	  = bttv_read,
 	.mmap	  = bttv_mmap,
diff --git a/linux/drivers/media/video/cx88/cx88-video.c b/linux/drivers/media/video/cx88/cx88-video.c
index 44fb4e671..910c773f7 100644
--- a/linux/drivers/media/video/cx88/cx88-video.c
+++ b/linux/drivers/media/video/cx88/cx88-video.c
@@ -1,5 +1,5 @@
 /*
- * $Id: cx88-video.c,v 1.100 2005/11/06 17:01:47 mchehab Exp $
+ * $Id: cx88-video.c,v 1.101 2005/11/09 18:30:51 mchehab Exp $
  *
  * device driver for Conexant 2388x based TV cards
  * video4linux video interface
@@ -2031,6 +2031,7 @@ static struct file_operations video_fops =
 	.poll          = video_poll,
 	.mmap	       = video_mmap,
 	.ioctl	       = video_ioctl,
+	.compat_ioctl  = v4l_compat_ioctl32,
 	.llseek        = no_llseek,
 };
 
@@ -2058,6 +2059,7 @@ static struct file_operations radio_fops =
 	.open          = video_open,
 	.release       = video_release,
 	.ioctl         = radio_ioctl,
+	.compat_ioctl  = v4l_compat_ioctl32,
 	.llseek        = no_llseek,
 };
 
diff --git a/linux/drivers/media/video/saa7134/Makefile b/linux/drivers/media/video/saa7134/Makefile
index fe11e4feb..df27ce45a 100644
--- a/linux/drivers/media/video/saa7134/Makefile
+++ b/linux/drivers/media/video/saa7134/Makefile
@@ -1,7 +1,7 @@
 
 saa7134-objs :=	saa7134-cards.o saa7134-core.o saa7134-i2c.o	\
 		saa7134-ts.o saa7134-tvaudio.o saa7134-vbi.o    \
-		saa7134-video.o saa7134-input.o  
+		saa7134-video.o saa7134-input.o
 
 obj-$(CONFIG_VIDEO_SAA7134) += saa7134.o saa7134-empress.o saa6752hs.o
 obj-$(CONFIG_VIDEO_SAA7134) += saa7134-alsa.o saa7134-oss.o
diff --git a/linux/drivers/media/video/saa7134/saa7134-alsa.c b/linux/drivers/media/video/saa7134/saa7134-alsa.c
index d8de17cda..102e9ab19 100644
--- a/linux/drivers/media/video/saa7134/saa7134-alsa.c
+++ b/linux/drivers/media/video/saa7134/saa7134-alsa.c
@@ -1,7 +1,7 @@
 /*
  *   SAA713x ALSA support for V4L
  *
- *   $Id: saa7134-alsa.c,v 1.23 2005/11/09 04:03:11 rmcc Exp $
+ *   $Id: saa7134-alsa.c,v 1.24 2005/11/09 18:30:51 mchehab Exp $
  *
  *   Caveats:
  *        - Volume doesn't work (it's always at max)
@@ -222,8 +222,8 @@ void saa7134_irq_alsa_done(struct saa7134_dev *dev, unsigned long status)
 
 static irqreturn_t saa7134_alsa_irq(int irq, void *dev_id, struct pt_regs *regs)
 {
-        struct saa7134_dmasound *dmasound = dev_id;
-        struct saa7134_dev *dev = dmasound->priv_data;
+	struct saa7134_dmasound *dmasound = dev_id;
+	struct saa7134_dev *dev = dmasound->priv_data;
 
 	unsigned long report, status;
 	int loop, handled = 0;
@@ -968,7 +968,7 @@ int alsa_card_saa7134_create(struct saa7134_dev *dev, int devnum)
 
 
 	err = request_irq(dev->pci->irq, saa7134_alsa_irq,
-				SA_SHIRQ | SA_INTERRUPT, dev->name, 
+				SA_SHIRQ | SA_INTERRUPT, dev->name,
 				(void*) &dev->dmasound);
 
 	if (err < 0) {
diff --git a/linux/drivers/media/video/saa7134/saa7134-core.c b/linux/drivers/media/video/saa7134/saa7134-core.c
index efa935195..76e228456 100644
--- a/linux/drivers/media/video/saa7134/saa7134-core.c
+++ b/linux/drivers/media/video/saa7134/saa7134-core.c
@@ -1,5 +1,5 @@
 /*
- * $Id: saa7134-core.c,v 1.54 2005/11/09 03:33:33 rmcc Exp $
+ * $Id: saa7134-core.c,v 1.55 2005/11/09 18:30:51 mchehab Exp $
  *
  * device driver for philips saa7134 based TV cards
  * driver core
@@ -643,8 +643,8 @@ static irqreturn_t saa7134_irq(int irq, void *dev_id, struct pt_regs *regs)
 		/* If dmasound support is active and we get a sound report, exit
 		   and let the saa7134-alsa/oss module deal with it */
 
-		if ((report & SAA7134_IRQ_REPORT_DONE_RA3) && 
-			(dev->dmasound.priv_data != NULL) ) 
+		if ((report & SAA7134_IRQ_REPORT_DONE_RA3) &&
+			(dev->dmasound.priv_data != NULL) )
 		{
 			if (irq_debug > 1)
 				printk(KERN_DEBUG "%s/irq: ignoring interrupt for DMA sound\n",
diff --git a/linux/drivers/media/video/saa7134/saa7134-oss.c b/linux/drivers/media/video/saa7134/saa7134-oss.c
index 3efd192c3..b9d9d7406 100644
--- a/linux/drivers/media/video/saa7134/saa7134-oss.c
+++ b/linux/drivers/media/video/saa7134/saa7134-oss.c
@@ -1,5 +1,5 @@
 /*
- * $Id: saa7134-oss.c,v 1.22 2005/11/09 03:33:33 rmcc Exp $
+ * $Id: saa7134-oss.c,v 1.23 2005/11/09 18:30:51 mchehab Exp $
  *
  * device driver for philips saa7134 based TV cards
  * oss dsp interface
@@ -783,36 +783,36 @@ struct file_operations saa7134_mixer_fops = {
 
 static irqreturn_t saa7134_oss_irq(int irq, void *dev_id, struct pt_regs *regs)
 {
-        struct saa7134_dmasound *dmasound = dev_id;
-        struct saa7134_dev *dev = dmasound->priv_data;
-        unsigned long report, status;
-        int loop, handled = 0;
-
-        for (loop = 0; loop < 10; loop++) {
-                report = saa_readl(SAA7134_IRQ_REPORT);
-                status = saa_readl(SAA7134_IRQ_STATUS);
-
-                if (report & SAA7134_IRQ_REPORT_DONE_RA3) {
-                        handled = 1;
-                        saa_writel(SAA7134_IRQ_REPORT,report);
-                        saa7134_irq_oss_done(dev, status);
-                } else {
-                        goto out;
-                }
-        }
-
-        if (loop == 10) {
-                dprintk("error! looping IRQ!");
-        }
+	struct saa7134_dmasound *dmasound = dev_id;
+	struct saa7134_dev *dev = dmasound->priv_data;
+	unsigned long report, status;
+	int loop, handled = 0;
+
+	for (loop = 0; loop < 10; loop++) {
+		report = saa_readl(SAA7134_IRQ_REPORT);
+		status = saa_readl(SAA7134_IRQ_STATUS);
+
+		if (report & SAA7134_IRQ_REPORT_DONE_RA3) {
+		        handled = 1;
+		        saa_writel(SAA7134_IRQ_REPORT,report);
+		        saa7134_irq_oss_done(dev, status);
+		} else {
+		        goto out;
+		}
+	}
+
+	if (loop == 10) {
+		dprintk("error! looping IRQ!");
+	}
 out:
-        return IRQ_RETVAL(handled);
+	return IRQ_RETVAL(handled);
 }
 
 int saa7134_oss_init1(struct saa7134_dev *dev)
 {
 
-        if ((request_irq(dev->pci->irq, saa7134_oss_irq,
-                         SA_SHIRQ | SA_INTERRUPT, dev->name, 
+	if ((request_irq(dev->pci->irq, saa7134_oss_irq,
+		         SA_SHIRQ | SA_INTERRUPT, dev->name,
 			(void*) &dev->dmasound)) < 0)
 		return -1;
 
@@ -904,27 +904,27 @@ int saa7134_dsp_create(struct saa7134_dev *dev)
 {
 	int err;
 
-                        err = dev->dmasound.minor_dsp =
-                                register_sound_dsp(&saa7134_dsp_fops,
-                                                   dsp_nr[dev->nr]);
-                        if (err < 0) {
-                                goto fail;
-                        }
-                        printk(KERN_INFO "%s: registered device dsp%d\n",
-                               dev->name,dev->dmasound.minor_dsp >> 4);
-
-                        err = dev->dmasound.minor_mixer =
-                                register_sound_mixer(&saa7134_mixer_fops,
-                                                     mixer_nr[dev->nr]);
-                        if (err < 0)
-                                goto fail;
-                        printk(KERN_INFO "%s: registered device mixer%d\n",
-                               dev->name,dev->dmasound.minor_mixer >> 4);
+		        err = dev->dmasound.minor_dsp =
+		                register_sound_dsp(&saa7134_dsp_fops,
+		                                   dsp_nr[dev->nr]);
+		        if (err < 0) {
+		                goto fail;
+		        }
+		        printk(KERN_INFO "%s: registered device dsp%d\n",
+		               dev->name,dev->dmasound.minor_dsp >> 4);
+
+		        err = dev->dmasound.minor_mixer =
+		                register_sound_mixer(&saa7134_mixer_fops,
+		                                     mixer_nr[dev->nr]);
+		        if (err < 0)
+		                goto fail;
+		        printk(KERN_INFO "%s: registered device mixer%d\n",
+		               dev->name,dev->dmasound.minor_mixer >> 4);
 
 	return 0;
 
 fail:
-        unregister_sound_dsp(dev->dmasound.minor_dsp);
+	unregister_sound_dsp(dev->dmasound.minor_dsp);
 	return 0;
 
 
@@ -932,44 +932,44 @@ fail:
 
 static int saa7134_oss_init(void)
 {
-        struct saa7134_dev *dev = NULL;
-        struct list_head *list;
+	struct saa7134_dev *dev = NULL;
+	struct list_head *list;
 
-        printk(KERN_INFO "saa7134 OSS driver for DMA sound loaded\n");
+	printk(KERN_INFO "saa7134 OSS driver for DMA sound loaded\n");
 
-        list_for_each(list,&saa7134_devlist) {
-                dev = list_entry(list, struct saa7134_dev, devlist);
+	list_for_each(list,&saa7134_devlist) {
+		dev = list_entry(list, struct saa7134_dev, devlist);
 		if (dev->dmasound.priv_data == NULL) {
 			dev->dmasound.priv_data = dev;
 			saa7134_oss_init1(dev);
 			saa7134_dsp_create(dev);
 		} else {
-                	printk(KERN_ERR "saa7134 OSS: DMA sound is being handled by ALSA, ignoring %s\n",dev->name);
+			printk(KERN_ERR "saa7134 OSS: DMA sound is being handled by ALSA, ignoring %s\n",dev->name);
 			return -EBUSY;
 		}
-        }
+	}
 
-        if (dev == NULL)
-                printk(KERN_INFO "saa7134 OSS: no saa7134 cards found\n");
+	if (dev == NULL)
+		printk(KERN_INFO "saa7134 OSS: no saa7134 cards found\n");
 
-        return 0;
+	return 0;
 
 }
 
 void saa7134_oss_exit(void)
 {
-        struct saa7134_dev *dev = NULL;
-        struct list_head *list;
+	struct saa7134_dev *dev = NULL;
+	struct list_head *list;
 
-        list_for_each(list,&saa7134_devlist) {
-                dev = list_entry(list, struct saa7134_dev, devlist);
+	list_for_each(list,&saa7134_devlist) {
+		dev = list_entry(list, struct saa7134_dev, devlist);
 
 		/* Device isn't registered by OSS, probably ALSA's */
-		if (!dev->dmasound.minor_dsp) 
+		if (!dev->dmasound.minor_dsp)
 			continue;
 
-                unregister_sound_mixer(dev->dmasound.minor_mixer);
-                unregister_sound_dsp(dev->dmasound.minor_dsp);
+		unregister_sound_mixer(dev->dmasound.minor_mixer);
+		unregister_sound_dsp(dev->dmasound.minor_dsp);
 
 		saa7134_oss_fini(dev);
 
@@ -978,13 +978,13 @@ void saa7134_oss_exit(void)
 			free_irq(dev->pci->irq,&dev->dmasound);
 		}
 
-        	dev->dmasound.priv_data = NULL;
+		dev->dmasound.priv_data = NULL;
 
-        }
+	}
 
-        printk(KERN_INFO "saa7134 OSS driver for DMA sound unloaded\n");
+	printk(KERN_INFO "saa7134 OSS driver for DMA sound unloaded\n");
 
-        return;
+	return;
 }
 
 module_init(saa7134_oss_init);
diff --git a/linux/drivers/media/video/saa7134/saa7134-video.c b/linux/drivers/media/video/saa7134/saa7134-video.c
index f16dd82ae..c9af508cb 100644
--- a/linux/drivers/media/video/saa7134/saa7134-video.c
+++ b/linux/drivers/media/video/saa7134/saa7134-video.c
@@ -1,5 +1,5 @@
 /*
- * $Id: saa7134-video.c,v 1.46 2005/10/18 21:49:21 nsh Exp $
+ * $Id: saa7134-video.c,v 1.47 2005/11/09 18:30:51 mchehab Exp $
  *
  * device driver for philips saa7134 based TV cards
  * video4linux video interface
@@ -2273,6 +2273,7 @@ static struct file_operations video_fops =
 	.poll     = video_poll,
 	.mmap	  = video_mmap,
 	.ioctl	  = video_ioctl,
+	.compat_ioctl	= v4l_compat_ioctl32,
 	.llseek   = no_llseek,
 };
 
@@ -2282,6 +2283,7 @@ static struct file_operations radio_fops =
 	.open	  = video_open,
 	.release  = video_release,
 	.ioctl	  = radio_ioctl,
+	.compat_ioctl	= v4l_compat_ioctl32,
 	.llseek   = no_llseek,
 };