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Diffstat (limited to 'linux/drivers/media/video/em28xx/em28xx-video.c')
-rw-r--r--linux/drivers/media/video/em28xx/em28xx-video.c124
1 files changed, 63 insertions, 61 deletions
diff --git a/linux/drivers/media/video/em28xx/em28xx-video.c b/linux/drivers/media/video/em28xx/em28xx-video.c
index 30121f0ad..1dea158e7 100644
--- a/linux/drivers/media/video/em28xx/em28xx-video.c
+++ b/linux/drivers/media/video/em28xx/em28xx-video.c
@@ -255,8 +255,8 @@ static int em28xx_config(struct em28xx *dev)
#if 1
/* enable vbi capturing */
- em28xx_write_regs_req(dev,0x00,0x0e,"\xC0",1);
- em28xx_write_regs_req(dev,0x00,0x0f,"\x80",1);
+/* em28xx_write_regs_req(dev,0x00,0x0e,"\xC0",1); audio register */
+/* em28xx_write_regs_req(dev,0x00,0x0f,"\x80",1); clk register */
em28xx_write_regs_req(dev,0x00,0x11,"\x51",1);
#endif
@@ -383,11 +383,11 @@ static void video_mux(struct em28xx *dev, int index)
em28xx_audio_source(dev, ainput);
} else {
switch (dev->ctl_ainput) {
- case 0:
- ainput = EM28XX_AUDIO_SRC_TUNER;
- break;
- default:
- ainput = EM28XX_AUDIO_SRC_LINE;
+ case 0:
+ ainput = EM28XX_AUDIO_SRC_TUNER;
+ break;
+ default:
+ ainput = EM28XX_AUDIO_SRC_LINE;
}
em28xx_audio_source(dev, ainput);
}
@@ -432,12 +432,12 @@ static int em28xx_v4l2_open(struct inode *inode, struct file *filp)
return -EBUSY;
}
- init_MUTEX(&dev->fileop_lock); /* to 1 == available */
+ mutex_init(&dev->fileop_lock); /* to 1 == available */
spin_lock_init(&dev->queue_lock);
init_waitqueue_head(&dev->wait_frame);
init_waitqueue_head(&dev->wait_stream);
- down(&dev->lock);
+ mutex_lock(&dev->lock);
if (dev->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
em28xx_set_alternate(dev);
@@ -453,12 +453,14 @@ static int em28xx_v4l2_open(struct inode *inode, struct file *filp)
em28xx_capture_start(dev, 1);
em28xx_resolution_set(dev);
+ /* device needs to be initialized before isoc transfer */
+ video_mux(dev, 0);
+
/* start the transfer */
errCode = em28xx_init_isoc(dev);
if (errCode)
goto err;
- video_mux(dev, 0);
}
dev->users++;
@@ -472,8 +474,8 @@ static int em28xx_v4l2_open(struct inode *inode, struct file *filp)
dev->state |= DEV_INITIALIZED;
- err:
- up(&dev->lock);
+err:
+ mutex_unlock(&dev->lock);
up_read(&em28xx_disconnect);
return errCode;
}
@@ -519,7 +521,7 @@ static int em28xx_v4l2_close(struct inode *inode, struct file *filp)
em28xx_videodbg("users=%d\n", dev->users);
- down(&dev->lock);
+ mutex_lock(&dev->lock);
em28xx_uninit_isoc(dev);
@@ -528,7 +530,7 @@ static int em28xx_v4l2_close(struct inode *inode, struct file *filp)
/* the device is already disconnect, free the remaining resources */
if (dev->state & DEV_DISCONNECTED) {
em28xx_release_resources(dev);
- up(&dev->lock);
+ mutex_unlock(&dev->lock);
kfree(dev);
return 0;
}
@@ -544,7 +546,7 @@ static int em28xx_v4l2_close(struct inode *inode, struct file *filp)
dev->users--;
wake_up_interruptible_nr(&dev->open, 1);
- up(&dev->lock);
+ mutex_unlock(&dev->lock);
return 0;
}
@@ -568,7 +570,7 @@ em28xx_v4l2_read(struct file *filp, char __user * buf, size_t count,
em28xx_videodbg("V4L2_BUF_TYPE_VBI_CAPTURE is set\n");
em28xx_videodbg("not supported yet! ...\n");
if (copy_to_user(buf, "", 1)) {
- up(&dev->fileop_lock);
+ mutex_unlock(&dev->fileop_lock);
return -EFAULT;
}
return (1);
@@ -577,38 +579,38 @@ em28xx_v4l2_read(struct file *filp, char __user * buf, size_t count,
em28xx_videodbg("V4L2_BUF_TYPE_SLICED_VBI_CAPTURE is set\n");
em28xx_videodbg("not supported yet! ...\n");
if (copy_to_user(buf, "", 1)) {
- up(&dev->fileop_lock);
+ mutex_unlock(&dev->fileop_lock);
return -EFAULT;
}
return (1);
}
- if (down_interruptible(&dev->fileop_lock))
+ if (mutex_lock_interruptible(&dev->fileop_lock))
return -ERESTARTSYS;
if (dev->state & DEV_DISCONNECTED) {
em28xx_videodbg("device not present\n");
- up(&dev->fileop_lock);
+ mutex_unlock(&dev->fileop_lock);
return -ENODEV;
}
if (dev->state & DEV_MISCONFIGURED) {
em28xx_videodbg("device misconfigured; close and open it again\n");
- up(&dev->fileop_lock);
+ mutex_unlock(&dev->fileop_lock);
return -EIO;
}
if (dev->io == IO_MMAP) {
em28xx_videodbg ("IO method is set to mmap; close and open"
" the device again to choose the read method\n");
- up(&dev->fileop_lock);
+ mutex_unlock(&dev->fileop_lock);
return -EINVAL;
}
if (dev->io == IO_NONE) {
if (!em28xx_request_buffers(dev, EM28XX_NUM_READ_FRAMES)) {
em28xx_errdev("read failed, not enough memory\n");
- up(&dev->fileop_lock);
+ mutex_unlock(&dev->fileop_lock);
return -ENOMEM;
}
dev->io = IO_READ;
@@ -617,13 +619,13 @@ em28xx_v4l2_read(struct file *filp, char __user * buf, size_t count,
}
if (!count) {
- up(&dev->fileop_lock);
+ mutex_unlock(&dev->fileop_lock);
return 0;
}
if (list_empty(&dev->outqueue)) {
if (filp->f_flags & O_NONBLOCK) {
- up(&dev->fileop_lock);
+ mutex_unlock(&dev->fileop_lock);
return -EAGAIN;
}
ret = wait_event_interruptible
@@ -631,11 +633,11 @@ em28xx_v4l2_read(struct file *filp, char __user * buf, size_t count,
(!list_empty(&dev->outqueue)) ||
(dev->state & DEV_DISCONNECTED));
if (ret) {
- up(&dev->fileop_lock);
+ mutex_unlock(&dev->fileop_lock);
return ret;
}
if (dev->state & DEV_DISCONNECTED) {
- up(&dev->fileop_lock);
+ mutex_unlock(&dev->fileop_lock);
return -ENODEV;
}
}
@@ -654,12 +656,12 @@ em28xx_v4l2_read(struct file *filp, char __user * buf, size_t count,
count = f->buf.length;
if (copy_to_user(buf, f->bufmem, count)) {
- up(&dev->fileop_lock);
+ mutex_unlock(&dev->fileop_lock);
return -EFAULT;
}
*f_pos += count;
- up(&dev->fileop_lock);
+ mutex_unlock(&dev->fileop_lock);
return count;
}
@@ -673,7 +675,7 @@ static unsigned int em28xx_v4l2_poll(struct file *filp, poll_table * wait)
unsigned int mask = 0;
struct em28xx *dev = filp->private_data;
- if (down_interruptible(&dev->fileop_lock))
+ if (mutex_lock_interruptible(&dev->fileop_lock))
return POLLERR;
if (dev->state & DEV_DISCONNECTED) {
@@ -699,13 +701,13 @@ static unsigned int em28xx_v4l2_poll(struct file *filp, poll_table * wait)
if (!list_empty(&dev->outqueue))
mask |= POLLIN | POLLRDNORM;
- up(&dev->fileop_lock);
+ mutex_unlock(&dev->fileop_lock);
return mask;
}
}
- up(&dev->fileop_lock);
+ mutex_unlock(&dev->fileop_lock);
return POLLERR;
}
@@ -745,25 +747,25 @@ static int em28xx_v4l2_mmap(struct file *filp, struct vm_area_struct *vma)
struct em28xx *dev = filp->private_data;
- if (down_interruptible(&dev->fileop_lock))
+ if (mutex_lock_interruptible(&dev->fileop_lock))
return -ERESTARTSYS;
if (dev->state & DEV_DISCONNECTED) {
em28xx_videodbg("mmap: device not present\n");
- up(&dev->fileop_lock);
+ mutex_unlock(&dev->fileop_lock);
return -ENODEV;
}
if (dev->state & DEV_MISCONFIGURED) {
em28xx_videodbg ("mmap: Device is misconfigured; close and "
"open it again\n");
- up(&dev->fileop_lock);
+ mutex_unlock(&dev->fileop_lock);
return -EIO;
}
if (dev->io != IO_MMAP || !(vma->vm_flags & VM_WRITE) ||
size != PAGE_ALIGN(dev->frame[0].buf.length)) {
- up(&dev->fileop_lock);
+ mutex_unlock(&dev->fileop_lock);
return -EINVAL;
}
@@ -773,7 +775,7 @@ static int em28xx_v4l2_mmap(struct file *filp, struct vm_area_struct *vma)
}
if (i == dev->num_frames) {
em28xx_videodbg("mmap: user supplied mapping address is out of range\n");
- up(&dev->fileop_lock);
+ mutex_unlock(&dev->fileop_lock);
return -EINVAL;
}
@@ -792,7 +794,7 @@ static int em28xx_v4l2_mmap(struct file *filp, struct vm_area_struct *vma)
if (vm_insert_page(vma, start, vmalloc_to_page(pos))) {
em28xx_videodbg("mmap: vm_insert_page failed\n");
#endif
- up(&dev->fileop_lock);
+ mutex_unlock(&dev->fileop_lock);
return -EAGAIN;
}
start += PAGE_SIZE;
@@ -804,7 +806,7 @@ static int em28xx_v4l2_mmap(struct file *filp, struct vm_area_struct *vma)
vma->vm_private_data = &dev->frame[i];
em28xx_vm_open(vma);
- up(&dev->fileop_lock);
+ mutex_unlock(&dev->fileop_lock);
return 0;
}
@@ -1234,7 +1236,7 @@ static int em28xx_do_ioctl(struct inode *inode, struct file *filp,
if (i == TVNORMS)
return -EINVAL;
- down(&dev->lock);
+ mutex_lock(&dev->lock);
dev->tvnorm = &tvnorms[i];
em28xx_set_norm(dev, dev->width, dev->height);
@@ -1244,7 +1246,7 @@ static int em28xx_do_ioctl(struct inode *inode, struct file *filp,
em28xx_i2c_call_clients(dev, VIDIOC_S_STD,
&dev->tvnorm->id);
- up(&dev->lock);
+ mutex_unlock(&dev->lock);
return 0;
}
@@ -1298,9 +1300,9 @@ static int em28xx_do_ioctl(struct inode *inode, struct file *filp,
if (0 == INPUT(*index)->type)
return -EINVAL;
- down(&dev->lock);
+ mutex_lock(&dev->lock);
video_mux(dev, *index);
- up(&dev->lock);
+ mutex_unlock(&dev->lock);
return 0;
}
@@ -1449,10 +1451,10 @@ static int em28xx_do_ioctl(struct inode *inode, struct file *filp,
/* t->signal = 0xffff;*/
/* em28xx_i2c_call_clients(dev,VIDIOC_G_TUNER,t);*/
/* No way to get signal strength? */
- down(&dev->lock);
+ mutex_lock(&dev->lock);
em28xx_i2c_call_clients(dev, DECODER_GET_STATUS,
&status);
- up(&dev->lock);
+ mutex_unlock(&dev->lock);
t->signal =
(status & DECODER_STATUS_GOOD) != 0 ? 0xffff : 0;
@@ -1474,10 +1476,10 @@ static int em28xx_do_ioctl(struct inode *inode, struct file *filp,
t->rangehigh = 0xffffffffUL; /* FIXME: set correct range */
/* t->signal = 0xffff; */
/* No way to get signal strength? */
- down(&dev->lock);
+ mutex_lock(&dev->lock);
em28xx_i2c_call_clients(dev, DECODER_GET_STATUS,
&status);
- up(&dev->lock);
+ mutex_unlock(&dev->lock);
t->signal =
(status & DECODER_STATUS_GOOD) != 0 ? 0xffff : 0;
@@ -1505,10 +1507,10 @@ static int em28xx_do_ioctl(struct inode *inode, struct file *filp,
if (V4L2_TUNER_ANALOG_TV != f->type)
return -EINVAL;
- down(&dev->lock);
+ mutex_lock(&dev->lock);
dev->ctl_freq = f->frequency;
em28xx_i2c_call_clients(dev, VIDIOC_S_FREQUENCY, f);
- up(&dev->lock);
+ mutex_unlock(&dev->lock);
return 0;
}
#if 0 /* ioctl is optional */
@@ -1808,25 +1810,25 @@ static int em28xx_v4l2_ioctl(struct inode *inode, struct file *filp,
int ret = 0;
struct em28xx *dev = filp->private_data;
- if (down_interruptible(&dev->fileop_lock))
+ if (mutex_lock_interruptible(&dev->fileop_lock))
return -ERESTARTSYS;
if (dev->state & DEV_DISCONNECTED) {
em28xx_errdev("v4l2 ioctl: device not present\n");
- up(&dev->fileop_lock);
+ mutex_unlock(&dev->fileop_lock);
return -ENODEV;
}
if (dev->state & DEV_MISCONFIGURED) {
em28xx_errdev
("v4l2 ioctl: device is misconfigured; close and open it again\n");
- up(&dev->fileop_lock);
+ mutex_unlock(&dev->fileop_lock);
return -EIO;
}
ret = video_usercopy(inode, filp, cmd, arg, em28xx_video_do_ioctl);
- up(&dev->fileop_lock);
+ mutex_unlock(&dev->fileop_lock);
return ret;
}
@@ -1862,7 +1864,7 @@ static int em28xx_init_dev(struct em28xx **devhandle, struct usb_device *udev,
dev->udev = udev;
dev->model = model;
- init_MUTEX(&dev->lock);
+ mutex_init(&dev->lock);
init_waitqueue_head(&dev->open);
dev->em28xx_write_regs = em28xx_write_regs;
@@ -1938,7 +1940,7 @@ static int em28xx_init_dev(struct em28xx **devhandle, struct usb_device *udev,
return -ENOMEM;
}
- down(&dev->lock);
+ mutex_lock(&dev->lock);
/* register i2c bus */
em28xx_i2c_register(dev);
@@ -1948,7 +1950,7 @@ static int em28xx_init_dev(struct em28xx **devhandle, struct usb_device *udev,
/* configure the device */
em28xx_config_i2c(dev);
- up(&dev->lock);
+ mutex_unlock(&dev->lock);
errCode = em28xx_config(dev);
@@ -2005,12 +2007,12 @@ static int em28xx_init_dev(struct em28xx **devhandle, struct usb_device *udev,
#endif
/* register v4l2 device */
- down(&dev->lock);
+ mutex_lock(&dev->lock);
if ((retval = video_register_device(dev->vdev, VFL_TYPE_GRABBER,
video_nr[dev->devno]))) {
em28xx_errdev("unable to register video device (error=%i).\n",
retval);
- up(&dev->lock);
+ mutex_unlock(&dev->lock);
list_del(&dev->devlist);
video_device_release(dev->vdev);
kfree(dev);
@@ -2021,7 +2023,7 @@ static int em28xx_init_dev(struct em28xx **devhandle, struct usb_device *udev,
if (video_register_device(dev->vbi_dev, VFL_TYPE_VBI,
vbi_nr[dev->devno]) < 0) {
printk("unable to register vbi device\n");
- up(&dev->lock);
+ mutex_unlock(&dev->lock);
list_del(&dev->devlist);
video_device_release(dev->vbi_dev);
video_device_release(dev->vdev);
@@ -2042,7 +2044,7 @@ static int em28xx_init_dev(struct em28xx **devhandle, struct usb_device *udev,
}
video_mux(dev, 0);
- up(&dev->lock);
+ mutex_unlock(&dev->lock);
em28xx_info("V4L2 device registered as /dev/video%d and /dev/vbi%d\n",
dev->vdev->minor-MINOR_VFL_TYPE_GRABBER_MIN,
@@ -2191,7 +2193,7 @@ static void em28xx_usb_disconnect(struct usb_interface *interface)
down_write(&em28xx_disconnect);
- down(&dev->lock);
+ mutex_lock(&dev->lock);
em28xx_info("disconnecting %s\n", dev->vdev->name);
@@ -2213,7 +2215,7 @@ static void em28xx_usb_disconnect(struct usb_interface *interface)
em28xx_release_resources(dev);
}
- up(&dev->lock);
+ mutex_unlock(&dev->lock);
if (!dev->users) {
kfree(dev->alt_max_pkt_size);
generated by cgit v1.2.3 (git 2.25.1) at 2025-02-04 04:07:06 +0000