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path: root/drivers/media/video/em28xx/em28xx-audio.c
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Diffstat (limited to 'drivers/media/video/em28xx/em28xx-audio.c')
-rw-r--r--drivers/media/video/em28xx/em28xx-audio.c91
1 files changed, 41 insertions, 50 deletions
diff --git a/drivers/media/video/em28xx/em28xx-audio.c b/drivers/media/video/em28xx/em28xx-audio.c
index 15c03f0e69ad..94378ccb7505 100644
--- a/drivers/media/video/em28xx/em28xx-audio.c
+++ b/drivers/media/video/em28xx/em28xx-audio.c
@@ -62,9 +62,9 @@ static int em28xx_isoc_audio_deinit(struct em28xx *dev)
dprintk("Stopping isoc\n");
for (i = 0; i < EM28XX_AUDIO_BUFS; i++) {
- usb_unlink_urb(dev->adev->urb[i]);
- usb_free_urb(dev->adev->urb[i]);
- dev->adev->urb[i] = NULL;
+ usb_unlink_urb(dev->adev.urb[i]);
+ usb_free_urb(dev->adev.urb[i]);
+ dev->adev.urb[i] = NULL;
}
return 0;
@@ -81,8 +81,8 @@ static void em28xx_audio_isocirq(struct urb *urb)
unsigned int stride;
struct snd_pcm_substream *substream;
struct snd_pcm_runtime *runtime;
- if (dev->adev->capture_pcm_substream) {
- substream = dev->adev->capture_pcm_substream;
+ if (dev->adev.capture_pcm_substream) {
+ substream = dev->adev.capture_pcm_substream;
runtime = substream->runtime;
stride = runtime->frame_bits >> 3;
@@ -95,7 +95,7 @@ static void em28xx_audio_isocirq(struct urb *urb)
if (!length)
continue;
- oldptr = dev->adev->hwptr_done_capture;
+ oldptr = dev->adev.hwptr_done_capture;
if (oldptr + length >= runtime->buffer_size) {
unsigned int cnt =
runtime->buffer_size - oldptr;
@@ -110,16 +110,16 @@ static void em28xx_audio_isocirq(struct urb *urb)
snd_pcm_stream_lock(substream);
- dev->adev->hwptr_done_capture += length;
- if (dev->adev->hwptr_done_capture >=
+ dev->adev.hwptr_done_capture += length;
+ if (dev->adev.hwptr_done_capture >=
runtime->buffer_size)
- dev->adev->hwptr_done_capture -=
+ dev->adev.hwptr_done_capture -=
runtime->buffer_size;
- dev->adev->capture_transfer_done += length;
- if (dev->adev->capture_transfer_done >=
+ dev->adev.capture_transfer_done += length;
+ if (dev->adev.capture_transfer_done >=
runtime->period_size) {
- dev->adev->capture_transfer_done -=
+ dev->adev.capture_transfer_done -=
runtime->period_size;
period_elapsed = 1;
}
@@ -131,7 +131,7 @@ static void em28xx_audio_isocirq(struct urb *urb)
}
urb->status = 0;
- if (dev->adev->shutdown)
+ if (dev->adev.shutdown)
return;
status = usb_submit_urb(urb, GFP_ATOMIC);
@@ -154,17 +154,17 @@ static int em28xx_init_audio_isoc(struct em28xx *dev)
struct urb *urb;
int j, k;
- dev->adev->transfer_buffer[i] = kmalloc(sb_size, GFP_ATOMIC);
- if (!dev->adev->transfer_buffer[i])
+ dev->adev.transfer_buffer[i] = kmalloc(sb_size, GFP_ATOMIC);
+ if (!dev->adev.transfer_buffer[i])
return -ENOMEM;
- memset(dev->adev->transfer_buffer[i], 0x80, sb_size);
+ memset(dev->adev.transfer_buffer[i], 0x80, sb_size);
urb = usb_alloc_urb(EM28XX_NUM_AUDIO_PACKETS, GFP_ATOMIC);
if (!urb) {
em28xx_errdev("usb_alloc_urb failed!\n");
for (j = 0; j < i; j++) {
- usb_free_urb(dev->adev->urb[j]);
- kfree(dev->adev->transfer_buffer[j]);
+ usb_free_urb(dev->adev.urb[j]);
+ kfree(dev->adev.transfer_buffer[j]);
}
return -ENOMEM;
}
@@ -173,7 +173,7 @@ static int em28xx_init_audio_isoc(struct em28xx *dev)
urb->context = dev;
urb->pipe = usb_rcvisocpipe(dev->udev, 0x83);
urb->transfer_flags = URB_ISO_ASAP;
- urb->transfer_buffer = dev->adev->transfer_buffer[i];
+ urb->transfer_buffer = dev->adev.transfer_buffer[i];
urb->interval = 1;
urb->complete = em28xx_audio_isocirq;
urb->number_of_packets = EM28XX_NUM_AUDIO_PACKETS;
@@ -185,11 +185,11 @@ static int em28xx_init_audio_isoc(struct em28xx *dev)
urb->iso_frame_desc[j].length =
EM28XX_AUDIO_MAX_PACKET_SIZE;
}
- dev->adev->urb[i] = urb;
+ dev->adev.urb[i] = urb;
}
for (i = 0; i < EM28XX_AUDIO_BUFS; i++) {
- errCode = usb_submit_urb(dev->adev->urb[i], GFP_ATOMIC);
+ errCode = usb_submit_urb(dev->adev.urb[i], GFP_ATOMIC);
if (errCode) {
em28xx_isoc_audio_deinit(dev);
@@ -202,16 +202,16 @@ static int em28xx_init_audio_isoc(struct em28xx *dev)
static int em28xx_cmd(struct em28xx *dev, int cmd, int arg)
{
- dprintk("%s transfer\n", (dev->adev->capture_stream == STREAM_ON)?
+ dprintk("%s transfer\n", (dev->adev.capture_stream == STREAM_ON) ?
"stop" : "start");
switch (cmd) {
case EM28XX_CAPTURE_STREAM_EN:
- if (dev->adev->capture_stream == STREAM_OFF && arg == 1) {
- dev->adev->capture_stream = STREAM_ON;
+ if (dev->adev.capture_stream == STREAM_OFF && arg == 1) {
+ dev->adev.capture_stream = STREAM_ON;
em28xx_init_audio_isoc(dev);
- } else if (dev->adev->capture_stream == STREAM_ON && arg == 0) {
- dev->adev->capture_stream = STREAM_OFF;
+ } else if (dev->adev.capture_stream == STREAM_ON && arg == 0) {
+ dev->adev.capture_stream = STREAM_OFF;
em28xx_isoc_audio_deinit(dev);
} else {
printk(KERN_ERR "An underrun very likely occurred. "
@@ -289,17 +289,17 @@ static int snd_em28xx_capture_open(struct snd_pcm_substream *substream)
goto err;
runtime->hw = snd_em28xx_hw_capture;
- if (dev->alt == 0 && dev->adev->users == 0) {
+ if (dev->alt == 0 && dev->adev.users == 0) {
int errCode;
dev->alt = 7;
errCode = usb_set_interface(dev->udev, 0, 7);
dprintk("changing alternate number to 7\n");
}
- dev->adev->users++;
+ dev->adev.users++;
snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
- dev->adev->capture_pcm_substream = substream;
+ dev->adev.capture_pcm_substream = substream;
runtime->private_data = dev;
return 0;
@@ -311,7 +311,7 @@ err:
static int snd_em28xx_pcm_close(struct snd_pcm_substream *substream)
{
struct em28xx *dev = snd_pcm_substream_chip(substream);
- dev->adev->users--;
+ dev->adev.users--;
dprintk("closing device\n");
@@ -320,10 +320,10 @@ static int snd_em28xx_pcm_close(struct snd_pcm_substream *substream)
em28xx_audio_analog_set(dev);
mutex_unlock(&dev->lock);
- if (dev->adev->users == 0 && dev->adev->shutdown == 1) {
- dprintk("audio users: %d\n", dev->adev->users);
+ if (dev->adev.users == 0 && dev->adev.shutdown == 1) {
+ dprintk("audio users: %d\n", dev->adev.users);
dprintk("disabling audio stream!\n");
- dev->adev->shutdown = 0;
+ dev->adev.shutdown = 0;
dprintk("released lock\n");
em28xx_cmd(dev, EM28XX_CAPTURE_STREAM_EN, 0);
}
@@ -356,7 +356,7 @@ static int snd_em28xx_hw_capture_free(struct snd_pcm_substream *substream)
dprintk("Stop capture, if needed\n");
- if (dev->adev->capture_stream == STREAM_ON)
+ if (dev->adev.capture_stream == STREAM_ON)
em28xx_cmd(dev, EM28XX_CAPTURE_STREAM_EN, 0);
return 0;
@@ -379,7 +379,7 @@ static int snd_em28xx_capture_trigger(struct snd_pcm_substream *substream,
em28xx_cmd(dev, EM28XX_CAPTURE_STREAM_EN, 1);
return 0;
case SNDRV_PCM_TRIGGER_STOP:
- dev->adev->shutdown = 1;
+ dev->adev.shutdown = 1;
return 0;
default:
return -EINVAL;
@@ -393,7 +393,7 @@ static snd_pcm_uframes_t snd_em28xx_capture_pointer(struct snd_pcm_substream
snd_pcm_uframes_t hwptr_done;
dev = snd_pcm_substream_chip(substream);
- hwptr_done = dev->adev->hwptr_done_capture;
+ hwptr_done = dev->adev.hwptr_done_capture;
return hwptr_done;
}
@@ -420,7 +420,7 @@ static struct snd_pcm_ops snd_em28xx_pcm_capture = {
static int em28xx_audio_init(struct em28xx *dev)
{
- struct em28xx_audio *adev;
+ struct em28xx_audio *adev = &dev->adev;
struct snd_pcm *pcm;
struct snd_card *card;
static int devnr;
@@ -438,16 +438,9 @@ static int em28xx_audio_init(struct em28xx *dev)
printk(KERN_INFO "em28xx-audio.c: Copyright (C) 2006 Markus "
"Rechberger\n");
- adev = kzalloc(sizeof(*adev), GFP_KERNEL);
- if (!adev) {
- printk(KERN_ERR "em28xx-audio.c: out of memory\n");
- return -1;
- }
card = snd_card_new(index[devnr], "Em28xx Audio", THIS_MODULE, 0);
- if (card == NULL) {
- kfree(adev);
+ if (card == NULL)
return -ENOMEM;
- }
spin_lock_init(&adev->slock);
err = snd_pcm_new(card, "Em28xx Audio", 0, 0, 1, &pcm);
@@ -471,7 +464,6 @@ static int em28xx_audio_init(struct em28xx *dev)
}
adev->sndcard = card;
adev->udev = dev->udev;
- dev->adev = adev;
return 0;
}
@@ -488,10 +480,9 @@ static int em28xx_audio_fini(struct em28xx *dev)
return 0;
}
- if (dev->adev) {
- snd_card_free(dev->adev->sndcard);
- kfree(dev->adev);
- dev->adev = NULL;
+ if (dev->adev.sndcard) {
+ snd_card_free(dev->adev.sndcard);
+ dev->adev.sndcard = NULL;
}
return 0;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.