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-rw-r--r--drivers/media/usb/em28xx/em28xx-audio.c145
1 files changed, 76 insertions, 69 deletions
diff --git a/drivers/media/usb/em28xx/em28xx-audio.c b/drivers/media/usb/em28xx/em28xx-audio.c
index f004680219e7..13ba631130cd 100644
--- a/drivers/media/usb/em28xx/em28xx-audio.c
+++ b/drivers/media/usb/em28xx/em28xx-audio.c
@@ -681,75 +681,14 @@ static int em28xx_audio_ep_packet_size(struct usb_device *udev,
return size & 0x7ff;
}
-static int em28xx_audio_init(struct em28xx *dev)
+static int em28xx_audio_urb_init(struct em28xx *dev)
{
- struct em28xx_audio *adev = &dev->adev;
- struct snd_pcm *pcm;
- struct snd_card *card;
struct usb_interface *intf;
struct usb_endpoint_descriptor *e, *ep = NULL;
- static int devnr;
- int err, i, ep_size, interval, num_urb, npackets;
+ int i, ep_size, interval, num_urb, npackets;
int urb_size, bytes_per_transfer;
u8 alt;
- if (!dev->has_alsa_audio || dev->audio_ifnum < 0) {
- /* This device does not support the extension (in this case
- the device is expecting the snd-usb-audio module or
- doesn't have analog audio support at all) */
- return 0;
- }
-
- em28xx_info("Binding audio extension\n");
-
- printk(KERN_INFO "em28xx-audio.c: Copyright (C) 2006 Markus "
- "Rechberger\n");
- printk(KERN_INFO
- "em28xx-audio.c: Copyright (C) 2007-2014 Mauro Carvalho Chehab\n");
-
- err = snd_card_create(index[devnr], "Em28xx Audio", THIS_MODULE, 0,
- &card);
- if (err < 0)
- return err;
-
- spin_lock_init(&adev->slock);
- adev->sndcard = card;
- adev->udev = dev->udev;
-
- err = snd_pcm_new(card, "Em28xx Audio", 0, 0, 1, &pcm);
- if (err < 0) {
- snd_card_free(card);
- return err;
- }
-
- snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_em28xx_pcm_capture);
- pcm->info_flags = 0;
- pcm->private_data = dev;
- strcpy(pcm->name, "Empia 28xx Capture");
-
- snd_card_set_dev(card, &dev->udev->dev);
- strcpy(card->driver, "Em28xx-Audio");
- strcpy(card->shortname, "Em28xx Audio");
- strcpy(card->longname, "Empia Em28xx Audio");
-
- INIT_WORK(&dev->wq_trigger, audio_trigger);
-
- if (dev->audio_mode.ac97 != EM28XX_NO_AC97) {
- em28xx_cvol_new(card, dev, "Video", AC97_VIDEO);
- em28xx_cvol_new(card, dev, "Line In", AC97_LINE);
- em28xx_cvol_new(card, dev, "Phone", AC97_PHONE);
- em28xx_cvol_new(card, dev, "Microphone", AC97_MIC);
- em28xx_cvol_new(card, dev, "CD", AC97_CD);
- em28xx_cvol_new(card, dev, "AUX", AC97_AUX);
- em28xx_cvol_new(card, dev, "PCM", AC97_PCM);
-
- em28xx_cvol_new(card, dev, "Master", AC97_MASTER);
- em28xx_cvol_new(card, dev, "Line", AC97_HEADPHONE);
- em28xx_cvol_new(card, dev, "Mono", AC97_MASTER_MONO);
- em28xx_cvol_new(card, dev, "LFE", AC97_CENTER_LFE_MASTER);
- em28xx_cvol_new(card, dev, "Surround", AC97_SURROUND_MASTER);
- }
-
if (dev->audio_ifnum)
alt = 1;
else
@@ -760,7 +699,6 @@ static int em28xx_audio_init(struct em28xx *dev)
if (intf->num_altsetting <= alt) {
em28xx_errdev("alt %d doesn't exist on interface %d\n",
dev->audio_ifnum, alt);
- snd_card_free(card);
return -ENODEV;
}
@@ -776,7 +714,6 @@ static int em28xx_audio_init(struct em28xx *dev)
if (!ep) {
em28xx_errdev("Couldn't find an audio endpoint");
- snd_card_free(card);
return -ENODEV;
}
@@ -833,13 +770,11 @@ static int em28xx_audio_init(struct em28xx *dev)
sizeof(*dev->adev.transfer_buffer),
GFP_ATOMIC);
if (!dev->adev.transfer_buffer) {
- snd_card_free(card);
return -ENOMEM;
}
dev->adev.urb = kcalloc(num_urb, sizeof(*dev->adev.urb), GFP_ATOMIC);
if (!dev->adev.urb) {
- snd_card_free(card);
kfree(dev->adev.transfer_buffer);
return -ENOMEM;
}
@@ -855,7 +790,6 @@ static int em28xx_audio_init(struct em28xx *dev)
if (!urb) {
em28xx_errdev("usb_alloc_urb failed!\n");
em28xx_audio_free_urb(dev);
- snd_card_free(card);
return -ENOMEM;
}
dev->adev.urb[i] = urb;
@@ -865,7 +799,6 @@ static int em28xx_audio_init(struct em28xx *dev)
if (!buf) {
em28xx_errdev("usb_alloc_coherent failed!\n");
em28xx_audio_free_urb(dev);
- snd_card_free(card);
return -ENOMEM;
}
dev->adev.transfer_buffer[i] = buf;
@@ -886,6 +819,80 @@ static int em28xx_audio_init(struct em28xx *dev)
}
}
+ return 0;
+}
+
+static int em28xx_audio_init(struct em28xx *dev)
+{
+ struct em28xx_audio *adev = &dev->adev;
+ struct snd_pcm *pcm;
+ struct snd_card *card;
+ static int devnr;
+ int err;
+
+ if (!dev->has_alsa_audio || dev->audio_ifnum < 0) {
+ /* This device does not support the extension (in this case
+ the device is expecting the snd-usb-audio module or
+ doesn't have analog audio support at all) */
+ return 0;
+ }
+
+ em28xx_info("Binding audio extension\n");
+
+ printk(KERN_INFO "em28xx-audio.c: Copyright (C) 2006 Markus "
+ "Rechberger\n");
+ printk(KERN_INFO
+ "em28xx-audio.c: Copyright (C) 2007-2014 Mauro Carvalho Chehab\n");
+
+ err = snd_card_create(index[devnr], "Em28xx Audio", THIS_MODULE, 0,
+ &card);
+ if (err < 0)
+ return err;
+
+ spin_lock_init(&adev->slock);
+ adev->sndcard = card;
+ adev->udev = dev->udev;
+
+ err = snd_pcm_new(card, "Em28xx Audio", 0, 0, 1, &pcm);
+ if (err < 0) {
+ snd_card_free(card);
+ return err;
+ }
+
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_em28xx_pcm_capture);
+ pcm->info_flags = 0;
+ pcm->private_data = dev;
+ strcpy(pcm->name, "Empia 28xx Capture");
+
+ snd_card_set_dev(card, &dev->udev->dev);
+ strcpy(card->driver, "Em28xx-Audio");
+ strcpy(card->shortname, "Em28xx Audio");
+ strcpy(card->longname, "Empia Em28xx Audio");
+
+ INIT_WORK(&dev->wq_trigger, audio_trigger);
+
+ if (dev->audio_mode.ac97 != EM28XX_NO_AC97) {
+ em28xx_cvol_new(card, dev, "Video", AC97_VIDEO);
+ em28xx_cvol_new(card, dev, "Line In", AC97_LINE);
+ em28xx_cvol_new(card, dev, "Phone", AC97_PHONE);
+ em28xx_cvol_new(card, dev, "Microphone", AC97_MIC);
+ em28xx_cvol_new(card, dev, "CD", AC97_CD);
+ em28xx_cvol_new(card, dev, "AUX", AC97_AUX);
+ em28xx_cvol_new(card, dev, "PCM", AC97_PCM);
+
+ em28xx_cvol_new(card, dev, "Master", AC97_MASTER);
+ em28xx_cvol_new(card, dev, "Line", AC97_HEADPHONE);
+ em28xx_cvol_new(card, dev, "Mono", AC97_MASTER_MONO);
+ em28xx_cvol_new(card, dev, "LFE", AC97_CENTER_LFE_MASTER);
+ em28xx_cvol_new(card, dev, "Surround", AC97_SURROUND_MASTER);
+ }
+
+ err = em28xx_audio_urb_init(dev);
+ if (err) {
+ snd_card_free(card);
+ return -ENODEV;
+ }
+
err = snd_card_register(card);
if (err < 0) {
em28xx_audio_free_urb(dev);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-17 04:05:01 +0000