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Diffstat (limited to 'drivers/media/video/em28xx/em28xx-video.c')
-rw-r--r--drivers/media/video/em28xx/em28xx-video.c103
1 files changed, 58 insertions, 45 deletions
diff --git a/drivers/media/video/em28xx/em28xx-video.c b/drivers/media/video/em28xx/em28xx-video.c
index ffbc91f2ecbd..1ac90322d681 100644
--- a/drivers/media/video/em28xx/em28xx-video.c
+++ b/drivers/media/video/em28xx/em28xx-video.c
@@ -1,5 +1,6 @@
/*
- em28xx-video.c - driver for Empia EM2800/EM2820/2840 USB video capture devices
+ em28xx-video.c - driver for Empia EM2800/EM2820/2840 USB
+ video capture devices
Copyright (C) 2005 Ludovico Cavedon <cavedon@sssup.it>
Markus Rechberger <mrechberger@gmail.com>
@@ -58,10 +59,13 @@ static unsigned int isoc_debug;
module_param(isoc_debug, int, 0644);
MODULE_PARM_DESC(isoc_debug, "enable debug messages [isoc transfers]");
-#define em28xx_isocdbg(fmt, arg...) do {\
- if (isoc_debug) \
+#define em28xx_isocdbg(fmt, arg...) \
+do {\
+ if (isoc_debug) { \
printk(KERN_INFO "%s %s :"fmt, \
- dev->name, __func__ , ##arg); } while (0)
+ dev->name, __func__ , ##arg); \
+ } \
+ } while (0)
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
@@ -84,8 +88,8 @@ MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
MODULE_PARM_DESC(radio_nr, "radio device numbers");
static unsigned int video_debug;
-module_param(video_debug,int,0644);
-MODULE_PARM_DESC(video_debug,"enable debug messages [video]");
+module_param(video_debug, int, 0644);
+MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
/* Bitmask marking allocated devices from 0 to EM28XX_MAXBOARDS */
static unsigned long em28xx_devused;
@@ -102,7 +106,7 @@ static struct v4l2_queryctrl em28xx_qctrl[] = {
.step = 0x1,
.default_value = 0x1f,
.flags = 0,
- },{
+ }, {
.id = V4L2_CID_AUDIO_MUTE,
.type = V4L2_CTRL_TYPE_BOOLEAN,
.name = "Mute",
@@ -390,7 +394,7 @@ buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size)
dev->mode = EM28XX_ANALOG_MODE;
/* Ask tuner to go to analog mode */
- memset (&f, 0, sizeof(f));
+ memset(&f, 0, sizeof(f));
f.frequency = dev->ctl_freq;
em28xx_i2c_call_clients(dev, VIDIOC_S_FREQUENCY, &f);
@@ -483,7 +487,8 @@ buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
}
-static void buffer_release(struct videobuf_queue *vq, struct videobuf_buffer *vb)
+static void buffer_release(struct videobuf_queue *vq,
+ struct videobuf_buffer *vb)
{
struct em28xx_buffer *buf = container_of(vb, struct em28xx_buffer, vb);
struct em28xx_fh *fh = vq->priv_data;
@@ -501,7 +506,7 @@ static struct videobuf_queue_ops em28xx_video_qops = {
.buf_release = buffer_release,
};
-/********************* v4l2 interface ******************************************/
+/********************* v4l2 interface **************************************/
/*
* em28xx_config()
@@ -516,9 +521,9 @@ static int em28xx_config(struct em28xx *dev)
/* enable vbi capturing */
-/* 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);
+/* 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);
dev->mute = 1; /* maybe not the right place... */
dev->volume = 0x1f;
@@ -557,12 +562,15 @@ static void video_mux(struct em28xx *dev, int index)
em28xx_i2c_call_clients(dev, VIDIOC_INT_S_VIDEO_ROUTING, &route);
if (dev->has_msp34xx) {
- if (dev->i2s_speed)
- em28xx_i2c_call_clients(dev, VIDIOC_INT_I2S_CLOCK_FREQ, &dev->i2s_speed);
+ if (dev->i2s_speed) {
+ em28xx_i2c_call_clients(dev, VIDIOC_INT_I2S_CLOCK_FREQ,
+ &dev->i2s_speed);
+ }
route.input = dev->ctl_ainput;
route.output = MSP_OUTPUT(MSP_SC_IN_DSP_SCART1);
/* Note: this is msp3400 specific */
- em28xx_i2c_call_clients(dev, VIDIOC_INT_S_AUDIO_ROUTING, &route);
+ em28xx_i2c_call_clients(dev, VIDIOC_INT_S_AUDIO_ROUTING,
+ &route);
}
em28xx_audio_analog_set(dev);
@@ -802,7 +810,7 @@ out:
return rc;
}
-static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *norm)
+static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id * norm)
{
struct em28xx_fh *fh = priv;
struct em28xx *dev = fh->dev;
@@ -919,11 +927,11 @@ static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
index = dev->ctl_ainput;
- if (index == 0) {
+ if (index == 0)
strcpy(a->name, "Television");
- } else {
+ else
strcpy(a->name, "Line In");
- }
+
a->capability = V4L2_AUDCAP_STEREO;
a->index = index;
@@ -1501,7 +1509,7 @@ static int em28xx_v4l2_open(struct inode *inode, struct file *filp)
{
int minor = iminor(inode);
int errCode = 0, radio = 0;
- struct em28xx *h,*dev = NULL;
+ struct em28xx *h, *dev = NULL;
struct em28xx_fh *fh;
enum v4l2_buf_type fh_type = 0;
@@ -1602,12 +1610,13 @@ static void em28xx_release_resources(struct em28xx *dev)
usb_put_dev(dev->udev);
/* Mark device as unused */
- em28xx_devused&=~(1<<dev->devno);
+ em28xx_devused &= ~(1<<dev->devno);
}
/*
* em28xx_v4l2_close()
- * stops streaming and deallocates all resources allocated by the v4l2 calls and ioctls
+ * stops streaming and deallocates all resources allocated by the v4l2
+ * calls and ioctls
*/
static int em28xx_v4l2_close(struct inode *inode, struct file *filp)
{
@@ -1660,7 +1669,7 @@ static int em28xx_v4l2_close(struct inode *inode, struct file *filp)
* will allocate buffers when called for the first time
*/
static ssize_t
-em28xx_v4l2_read(struct file *filp, char __user * buf, size_t count,
+em28xx_v4l2_read(struct file *filp, char __user *buf, size_t count,
loff_t *pos)
{
struct em28xx_fh *fh = filp->private_data;
@@ -1825,7 +1834,7 @@ static struct video_device em28xx_radio_template = {
#endif
};
-/******************************** usb interface *****************************************/
+/******************************** usb interface ******************************/
static LIST_HEAD(em28xx_extension_devlist);
@@ -2088,22 +2097,24 @@ static int em28xx_usb_probe(struct usb_interface *interface,
ifnum = interface->altsetting[0].desc.bInterfaceNumber;
/* Check to see next free device and mark as used */
- nr=find_first_zero_bit(&em28xx_devused,EM28XX_MAXBOARDS);
- em28xx_devused|=1<<nr;
+ nr = find_first_zero_bit(&em28xx_devused, EM28XX_MAXBOARDS);
+ em28xx_devused |= 1<<nr;
/* Don't register audio interfaces */
if (interface->altsetting[0].desc.bInterfaceClass == USB_CLASS_AUDIO) {
em28xx_err(DRIVER_NAME " audio device (%04x:%04x): interface %i, class %i\n",
- udev->descriptor.idVendor,udev->descriptor.idProduct,
+ udev->descriptor.idVendor,
+ udev->descriptor.idProduct,
ifnum,
interface->altsetting[0].desc.bInterfaceClass);
- em28xx_devused&=~(1<<nr);
+ em28xx_devused &= ~(1<<nr);
return -ENODEV;
}
em28xx_err(DRIVER_NAME " new video device (%04x:%04x): interface %i, class %i\n",
- udev->descriptor.idVendor,udev->descriptor.idProduct,
+ udev->descriptor.idVendor,
+ udev->descriptor.idProduct,
ifnum,
interface->altsetting[0].desc.bInterfaceClass);
@@ -2113,18 +2124,19 @@ static int em28xx_usb_probe(struct usb_interface *interface,
if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) !=
USB_ENDPOINT_XFER_ISOC) {
em28xx_err(DRIVER_NAME " probing error: endpoint is non-ISO endpoint!\n");
- em28xx_devused&=~(1<<nr);
+ em28xx_devused &= ~(1<<nr);
return -ENODEV;
}
if ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) {
em28xx_err(DRIVER_NAME " probing error: endpoint is ISO OUT endpoint!\n");
- em28xx_devused&=~(1<<nr);
+ em28xx_devused &= ~(1<<nr);
return -ENODEV;
}
if (nr >= EM28XX_MAXBOARDS) {
- printk (DRIVER_NAME ": Supports only %i em28xx boards.\n",EM28XX_MAXBOARDS);
- em28xx_devused&=~(1<<nr);
+ printk(DRIVER_NAME ": Supports only %i em28xx boards.\n",
+ EM28XX_MAXBOARDS);
+ em28xx_devused &= ~(1<<nr);
return -ENOMEM;
}
@@ -2132,7 +2144,7 @@ static int em28xx_usb_probe(struct usb_interface *interface,
dev = kzalloc(sizeof(*dev), GFP_KERNEL);
if (dev == NULL) {
em28xx_err(DRIVER_NAME ": out of memory!\n");
- em28xx_devused&=~(1<<nr);
+ em28xx_devused &= ~(1<<nr);
return -ENOMEM;
}
@@ -2156,14 +2168,14 @@ static int em28xx_usb_probe(struct usb_interface *interface,
/* compute alternate max packet sizes */
uif = udev->actconfig->interface[0];
- dev->num_alt=uif->num_altsetting;
- em28xx_info("Alternate settings: %i\n",dev->num_alt);
-// dev->alt_max_pkt_size = kmalloc(sizeof(*dev->alt_max_pkt_size)*
- dev->alt_max_pkt_size = kmalloc(32*
- dev->num_alt,GFP_KERNEL);
+ dev->num_alt = uif->num_altsetting;
+ em28xx_info("Alternate settings: %i\n", dev->num_alt);
+/* dev->alt_max_pkt_size = kmalloc(sizeof(*dev->alt_max_pkt_size)* */
+ dev->alt_max_pkt_size = kmalloc(32 * dev->num_alt, GFP_KERNEL);
+
if (dev->alt_max_pkt_size == NULL) {
em28xx_errdev("out of memory!\n");
- em28xx_devused&=~(1<<nr);
+ em28xx_devused &= ~(1<<nr);
kfree(dev);
return -ENOMEM;
}
@@ -2173,11 +2185,11 @@ static int em28xx_usb_probe(struct usb_interface *interface,
wMaxPacketSize);
dev->alt_max_pkt_size[i] =
(tmp & 0x07ff) * (((tmp & 0x1800) >> 11) + 1);
- em28xx_info("Alternate setting %i, max size= %i\n",i,
- dev->alt_max_pkt_size[i]);
+ em28xx_info("Alternate setting %i, max size= %i\n", i,
+ dev->alt_max_pkt_size[i]);
}
- if ((card[nr]>=0)&&(card[nr]<em28xx_bcount))
+ if ((card[nr] >= 0) && (card[nr] < em28xx_bcount))
dev->model = card[nr];
/* allocate device struct */
@@ -2213,7 +2225,8 @@ static void em28xx_usb_disconnect(struct usb_interface *interface)
em28xx_info("disconnecting %s\n", dev->vdev->name);
- /* wait until all current v4l2 io is finished then deallocate resources */
+ /* wait until all current v4l2 io is finished then deallocate
+ resources */
mutex_lock(&dev->lock);
wake_up_interruptible_all(&dev->open);
generated by cgit v1.2.3 (git 2.0.4) at 2024-07-15 19:42:17 +0000