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path: root/drivers/staging/easycap/easycap_main.c
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Diffstat (limited to 'drivers/staging/easycap/easycap_main.c')
-rw-r--r--drivers/staging/easycap/easycap_main.c156
1 files changed, 7 insertions, 149 deletions
diff --git a/drivers/staging/easycap/easycap_main.c b/drivers/staging/easycap/easycap_main.c
index 62e07f6a026c..bea281624c41 100644
--- a/drivers/staging/easycap/easycap_main.c
+++ b/drivers/staging/easycap/easycap_main.c
@@ -158,10 +158,6 @@ static int easycap_open(struct inode *inode, struct file *file)
SAY("ERROR: peasycap is NULL\n");
return -EFAULT;
}
- if (memcmp(&peasycap->telltale[0], TELLTALE, strlen(TELLTALE))) {
- SAY("ERROR: bad peasycap: %p\n", peasycap);
- return -EFAULT;
- }
if (!peasycap->pusb_device) {
SAM("ERROR: peasycap->pusb_device is NULL\n");
return -EFAULT;
@@ -695,10 +691,6 @@ static int videodev_release(struct video_device *pvideo_device)
SAY("ending unsuccessfully\n");
return -EFAULT;
}
- if (memcmp(&peasycap->telltale[0], TELLTALE, strlen(TELLTALE))) {
- SAY("ERROR: bad peasycap: %p\n", peasycap);
- return -EFAULT;
- }
if (0 != kill_video_urbs(peasycap)) {
SAM("ERROR: kill_video_urbs() failed\n");
return -EFAULT;
@@ -736,10 +728,6 @@ static void easycap_delete(struct kref *pkref)
SAM("ERROR: peasycap is NULL: cannot perform deletions\n");
return;
}
- if (memcmp(&peasycap->telltale[0], TELLTALE, strlen(TELLTALE))) {
- SAY("ERROR: bad peasycap: %p\n", peasycap);
- return;
- }
kd = isdongle(peasycap);
/*---------------------------------------------------------------------------*/
/*
@@ -889,20 +877,6 @@ static void easycap_delete(struct kref *pkref)
JOM(4, "easyoss_delete(): isoc audio buffers freed: %i pages\n",
m * (0x01 << AUDIO_ISOC_ORDER));
/*---------------------------------------------------------------------------*/
-#ifdef CONFIG_EASYCAP_OSS
- JOM(4, "freeing audio buffers.\n");
- gone = 0;
- for (k = 0; k < peasycap->audio_buffer_page_many; k++) {
- if (peasycap->audio_buffer[k].pgo) {
- free_page((unsigned long)peasycap->audio_buffer[k].pgo);
- peasycap->audio_buffer[k].pgo = NULL;
- peasycap->allocation_audio_page -= 1;
- gone++;
- }
- }
- JOM(4, "easyoss_delete(): audio buffers freed: %i pages\n", gone);
-#endif /* CONFIG_EASYCAP_OSS */
-/*---------------------------------------------------------------------------*/
JOM(4, "freeing easycap structure.\n");
allocation_video_urb = peasycap->allocation_video_urb;
allocation_video_page = peasycap->allocation_video_page;
@@ -913,8 +887,6 @@ static void easycap_delete(struct kref *pkref)
allocation_audio_struct = peasycap->allocation_audio_struct;
registered_audio = peasycap->registered_audio;
- kfree(peasycap);
-
if (0 <= kd && DONGLE_MANY > kd) {
if (mutex_lock_interruptible(&mutex_dongle)) {
SAY("ERROR: cannot down mutex_dongle\n");
@@ -929,6 +901,9 @@ static void easycap_delete(struct kref *pkref)
} else {
SAY("ERROR: cannot purge dongle[].peasycap");
}
+
+ kfree(peasycap);
+
/*---------------------------------------------------------------------------*/
SAY("%8i=video urbs after all deletions\n", allocation_video_urb);
SAY("%8i=video pages after all deletions\n", allocation_video_page);
@@ -961,10 +936,6 @@ static unsigned int easycap_poll(struct file *file, poll_table *wait)
SAY("ERROR: peasycap is NULL\n");
return -EFAULT;
}
- if (memcmp(&peasycap->telltale[0], TELLTALE, strlen(TELLTALE))) {
- SAY("ERROR: bad peasycap: %p\n", peasycap);
- return -EFAULT;
- }
if (!peasycap->pusb_device) {
SAY("ERROR: peasycap->pusb_device is NULL\n");
return -EFAULT;
@@ -995,11 +966,6 @@ static unsigned int easycap_poll(struct file *file, poll_table *wait)
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
return -ERESTARTSYS;
}
- if (memcmp(&peasycap->telltale[0], TELLTALE, strlen(TELLTALE))) {
- SAY("ERROR: bad peasycap: %p\n", peasycap);
- mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
- return -ERESTARTSYS;
- }
if (!peasycap->pusb_device) {
SAM("ERROR: peasycap->pusb_device is NULL\n");
mutex_unlock(&easycapdc60_dongle[kd].mutex_video);
@@ -2454,10 +2420,6 @@ static void easycap_vma_open(struct vm_area_struct *pvma)
SAY("ERROR: peasycap is NULL\n");
return;
}
- if (memcmp(&peasycap->telltale[0], TELLTALE, strlen(TELLTALE))) {
- SAY("ERROR: bad peasycap: %p\n", peasycap);
- return;
- }
peasycap->vma_many++;
JOT(8, "%i=peasycap->vma_many\n", peasycap->vma_many);
return;
@@ -2472,10 +2434,6 @@ static void easycap_vma_close(struct vm_area_struct *pvma)
SAY("ERROR: peasycap is NULL\n");
return;
}
- if (memcmp(&peasycap->telltale[0], TELLTALE, strlen(TELLTALE))) {
- SAY("ERROR: bad peasycap: %p\n", peasycap);
- return;
- }
peasycap->vma_many--;
JOT(8, "%i=peasycap->vma_many\n", peasycap->vma_many);
return;
@@ -2606,10 +2564,6 @@ static void easycap_complete(struct urb *purb)
SAY("ERROR: easycap_complete(): peasycap is NULL\n");
return;
}
- if (memcmp(&peasycap->telltale[0], TELLTALE, strlen(TELLTALE))) {
- SAY("ERROR: bad peasycap: %p\n", peasycap);
- return;
- }
if (peasycap->video_eof)
return;
for (i = 0; i < VIDEO_ISOC_BUFFER_MANY; i++)
@@ -3000,7 +2954,6 @@ static int easycap_usb_probe(struct usb_interface *intf,
struct easycap_format *peasycap_format;
int fmtidx;
struct inputset *inputset;
- struct v4l2_device *pv4l2_device;
usbdev = interface_to_usbdev(intf);
@@ -3054,7 +3007,6 @@ static int easycap_usb_probe(struct usb_interface *intf,
*/
/*---------------------------------------------------------------------------*/
peasycap->minor = -1;
- strcpy(&peasycap->telltale[0], TELLTALE);
kref_init(&peasycap->kref);
JOM(8, "intf[%i]: after kref_init(..._video) "
"%i=peasycap->kref.refcount.counter\n",
@@ -3267,23 +3219,6 @@ static int easycap_usb_probe(struct usb_interface *intf,
bInterfaceNumber);
return -ENODEV;
}
-/*---------------------------------------------------------------------------*/
-/*
- * SOME VERSIONS OF THE videodev MODULE OVERWRITE THE DATA WHICH HAS
- * BEEN WRITTEN BY THE CALL TO usb_set_intfdata() IN easycap_usb_probe(),
- * REPLACING IT WITH A POINTER TO THE EMBEDDED v4l2_device STRUCTURE.
- * TO DETECT THIS, THE STRING IN THE easycap.telltale[] BUFFER IS CHECKED.
-*/
-/*---------------------------------------------------------------------------*/
- if (memcmp(&peasycap->telltale[0], TELLTALE, strlen(TELLTALE))) {
- pv4l2_device = usb_get_intfdata(intf);
- if (!pv4l2_device) {
- SAY("ERROR: pv4l2_device is NULL\n");
- return -ENODEV;
- }
- peasycap = (struct easycap *)
- container_of(pv4l2_device, struct easycap, v4l2_device);
- }
}
/*---------------------------------------------------------------------------*/
if ((USB_CLASS_VIDEO == bInterfaceClass) ||
@@ -3775,14 +3710,12 @@ static int easycap_usb_probe(struct usb_interface *intf,
* THE VIDEO DEVICE CAN BE REGISTERED NOW, AS IT IS READY.
*/
/*--------------------------------------------------------------------------*/
- if (0 != (v4l2_device_register(&(intf->dev),
- &(peasycap->v4l2_device)))) {
+ if (v4l2_device_register(&intf->dev, &peasycap->v4l2_device)) {
SAM("v4l2_device_register() failed\n");
return -ENODEV;
- } else {
- JOM(4, "registered device instance: %s\n",
- &(peasycap->v4l2_device.name[0]));
}
+ JOM(4, "registered device instance: %s\n",
+ peasycap->v4l2_device.name);
/*---------------------------------------------------------------------------*/
/*
* FIXME
@@ -3947,32 +3880,6 @@ static int easycap_usb_probe(struct usb_interface *intf,
INIT_LIST_HEAD(&(peasycap->urb_audio_head));
peasycap->purb_audio_head = &(peasycap->urb_audio_head);
-#ifdef CONFIG_EASYCAP_OSS
- JOM(4, "allocating an audio buffer\n");
- JOM(4, ".... scattered over %i pages\n",
- peasycap->audio_buffer_page_many);
-
- for (k = 0; k < peasycap->audio_buffer_page_many; k++) {
- if (peasycap->audio_buffer[k].pgo) {
- SAM("ERROR: attempting to reallocate audio buffers\n");
- } else {
- pbuf = (void *) __get_free_page(GFP_KERNEL);
- if (!pbuf) {
- SAM("ERROR: Could not allocate audio "
- "buffer page %i\n", k);
- return -ENOMEM;
- } else
- peasycap->allocation_audio_page += 1;
-
- peasycap->audio_buffer[k].pgo = pbuf;
- }
- peasycap->audio_buffer[k].pto = peasycap->audio_buffer[k].pgo;
- }
-
- peasycap->audio_fill = 0;
- peasycap->audio_read = 0;
- JOM(4, "allocation of audio buffer done: %i pages\n", k);
-#endif /* CONFIG_EASYCAP_OSS */
/*---------------------------------------------------------------------------*/
JOM(4, "allocating %i isoc audio buffers of size %i\n",
AUDIO_ISOC_BUFFER_MANY,
@@ -4049,11 +3956,7 @@ static int easycap_usb_probe(struct usb_interface *intf,
"peasycap->audio_isoc_buffer[.].pgo;\n");
JOM(4, " purb->transfer_buffer_length = %i;\n",
peasycap->audio_isoc_buffer_size);
-#ifdef CONFIG_EASYCAP_OSS
- JOM(4, " purb->complete = easyoss_complete;\n");
-#else /* CONFIG_EASYCAP_OSS */
JOM(4, " purb->complete = easycap_alsa_complete;\n");
-#endif /* CONFIG_EASYCAP_OSS */
JOM(4, " purb->context = peasycap;\n");
JOM(4, " purb->start_frame = 0;\n");
JOM(4, " purb->number_of_packets = %i;\n",
@@ -4076,11 +3979,7 @@ static int easycap_usb_probe(struct usb_interface *intf,
purb->transfer_buffer = peasycap->audio_isoc_buffer[k].pgo;
purb->transfer_buffer_length =
peasycap->audio_isoc_buffer_size;
-#ifdef CONFIG_EASYCAP_OSS
- purb->complete = easyoss_complete;
-#else /* CONFIG_EASYCAP_OSS */
purb->complete = easycap_alsa_complete;
-#endif /* CONFIG_EASYCAP_OSS */
purb->context = peasycap;
purb->start_frame = 0;
purb->number_of_packets = peasycap->audio_isoc_framesperdesc;
@@ -4103,7 +4002,6 @@ static int easycap_usb_probe(struct usb_interface *intf,
* THE AUDIO DEVICE CAN BE REGISTERED NOW, AS IT IS READY.
*/
/*---------------------------------------------------------------------------*/
-#ifndef CONFIG_EASYCAP_OSS
JOM(4, "initializing ALSA card\n");
rc = easycap_alsa_probe(peasycap);
@@ -4112,15 +4010,6 @@ static int easycap_usb_probe(struct usb_interface *intf,
return -ENODEV;
}
-#else /* CONFIG_EASYCAP_OSS */
- rc = usb_register_dev(intf, &easyoss_class);
- if (rc) {
- SAY("ERROR: usb_register_dev() failed\n");
- usb_set_intfdata(intf, NULL);
- return -ENODEV;
- }
- SAM("easyoss attached to minor #%d\n", intf->minor);
-#endif /* CONFIG_EASYCAP_OSS */
JOM(8, "kref_get() with %i=kref.refcount.counter\n",
peasycap->kref.refcount.counter);
@@ -4146,7 +4035,7 @@ static int easycap_usb_probe(struct usb_interface *intf,
* WHEN THIS FUNCTION IS CALLED THE EasyCAP HAS ALREADY BEEN PHYSICALLY
* UNPLUGGED. HENCE peasycap->pusb_device IS NO LONGER VALID.
*
- * THIS FUNCTION AFFECTS BOTH OSS AND ALSA. BEWARE.
+ * THIS FUNCTION AFFECTS ALSA. BEWARE.
*/
/*---------------------------------------------------------------------------*/
static void easycap_usb_disconnect(struct usb_interface *pusb_interface)
@@ -4159,7 +4048,6 @@ static void easycap_usb_disconnect(struct usb_interface *pusb_interface)
struct list_head *plist_head;
struct data_urb *pdata_urb;
int minor, m, kd;
- struct v4l2_device *pv4l2_device;
JOT(4, "\n");
@@ -4187,29 +4075,6 @@ static void easycap_usb_disconnect(struct usb_interface *pusb_interface)
}
/*---------------------------------------------------------------------------*/
/*
- * SOME VERSIONS OF THE videodev MODULE OVERWRITE THE DATA WHICH HAS
- * BEEN WRITTEN BY THE CALL TO usb_set_intfdata() IN easycap_usb_probe(),
- * REPLACING IT WITH A POINTER TO THE EMBEDDED v4l2_device STRUCTURE.
- * TO DETECT THIS, THE STRING IN THE easycap.telltale[] BUFFER IS CHECKED.
-*/
-/*---------------------------------------------------------------------------*/
- if (memcmp(&peasycap->telltale[0], TELLTALE, strlen(TELLTALE))) {
- pv4l2_device = usb_get_intfdata(pusb_interface);
- if (!pv4l2_device) {
- SAY("ERROR: pv4l2_device is NULL\n");
- return;
- }
- peasycap = (struct easycap *)
- container_of(pv4l2_device, struct easycap, v4l2_device);
- }
-/*^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^*/
-/*---------------------------------------------------------------------------*/
- if (memcmp(&peasycap->telltale[0], TELLTALE, strlen(TELLTALE))) {
- SAY("ERROR: bad peasycap: %p\n", peasycap);
- return;
- }
-/*---------------------------------------------------------------------------*/
-/*
* IF THE WAIT QUEUES ARE NOT CLEARED A DEADLOCK IS POSSIBLE. BEWARE.
*/
/*---------------------------------------------------------------------------*/
@@ -4321,19 +4186,12 @@ static void easycap_usb_disconnect(struct usb_interface *pusb_interface)
JOM(4, "locked dongle[%i].mutex_audio\n", kd);
} else
SAY("ERROR: %i=kd is bad: cannot lock dongle\n", kd);
-#ifndef CONFIG_EASYCAP_OSS
if (0 != snd_card_free(peasycap->psnd_card)) {
SAY("ERROR: snd_card_free() failed\n");
} else {
peasycap->psnd_card = NULL;
(peasycap->registered_audio)--;
}
-#else /* CONFIG_EASYCAP_OSS */
- usb_deregister_dev(pusb_interface, &easyoss_class);
- peasycap->registered_audio--;
- JOM(4, "intf[%i]: usb_deregister_dev()\n", bInterfaceNumber);
- SAM("easyoss detached from minor #%d\n", minor);
-#endif /* CONFIG_EASYCAP_OSS */
if (0 <= kd && DONGLE_MANY > kd) {
mutex_unlock(&easycapdc60_dongle[kd].mutex_audio);
JOM(4, "unlocked dongle[%i].mutex_audio\n", kd);
generated by cgit v1.2.3 (git 2.0.4) at 2024-05-28 17:38:13 +0000