mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-15 15:04:27 +08:00
Staging: line6: fix checkpatch errors in playback.c
2 errors left, but they are minor. Lots of warnings also fixed up. Cc: Markus Grabner <grabner@icg.tugraz.at> Cc: Mariusz Kozlowski <m.kozlowski@tuxland.pl> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Greg Kroah-Hartman
parent
9a92fadcc6
commit
010f378e8c
@ -24,30 +24,31 @@
|
||||
/*
|
||||
Software stereo volume control.
|
||||
*/
|
||||
static void change_volume(struct urb *urb_out, int volume[], int bytes_per_frame)
|
||||
static void change_volume(struct urb *urb_out, int volume[],
|
||||
int bytes_per_frame)
|
||||
{
|
||||
int chn = 0;
|
||||
|
||||
if(volume[0] == 256 && volume[1] == 256)
|
||||
if (volume[0] == 256 && volume[1] == 256)
|
||||
return; /* maximum volume - no change */
|
||||
|
||||
if(bytes_per_frame == 4) {
|
||||
if (bytes_per_frame == 4) {
|
||||
short *p, *buf_end;
|
||||
p = (short *)urb_out->transfer_buffer;
|
||||
buf_end = p + urb_out->transfer_buffer_length / sizeof(*p);
|
||||
|
||||
for(; p < buf_end; ++p) {
|
||||
for (; p < buf_end; ++p) {
|
||||
*p = (*p * volume[chn & 1]) >> 8;
|
||||
++chn;
|
||||
}
|
||||
}
|
||||
else if(bytes_per_frame == 6) {
|
||||
} else if (bytes_per_frame == 6) {
|
||||
unsigned char *p, *buf_end;
|
||||
p = (unsigned char *)urb_out->transfer_buffer;
|
||||
buf_end = p + urb_out->transfer_buffer_length;
|
||||
|
||||
for(; p < buf_end; p += 3) {
|
||||
int val = p[0] + (p[1] << 8) + ((signed char)p[2] << 16);
|
||||
for (; p < buf_end; p += 3) {
|
||||
int val;
|
||||
val = p[0] + (p[1] << 8) + ((signed char)p[2] << 16);
|
||||
val = (val * volume[chn & 1]) >> 8;
|
||||
p[0] = val;
|
||||
p[1] = val >> 8;
|
||||
@ -75,7 +76,7 @@ static int submit_audio_out_urb(struct snd_pcm_substream *substream)
|
||||
spin_lock_irqsave(&line6pcm->lock_audio_out, flags);
|
||||
index = find_first_zero_bit(&line6pcm->active_urb_out, LINE6_ISO_BUFFERS);
|
||||
|
||||
if(index < 0 || index >= LINE6_ISO_BUFFERS) {
|
||||
if (index < 0 || index >= LINE6_ISO_BUFFERS) {
|
||||
spin_unlock_irqrestore(&line6pcm->lock_audio_out, flags);
|
||||
dev_err(s2m(substream), "no free URB found\n");
|
||||
return -EINVAL;
|
||||
@ -84,7 +85,7 @@ static int submit_audio_out_urb(struct snd_pcm_substream *substream)
|
||||
urb_out = line6pcm->urb_audio_out[index];
|
||||
urb_size = 0;
|
||||
|
||||
for(i = 0; i < LINE6_ISO_PACKETS; ++i) {
|
||||
for (i = 0; i < LINE6_ISO_PACKETS; ++i) {
|
||||
/* compute frame size for given sampling rate */
|
||||
int n, fs;
|
||||
struct usb_iso_packet_descriptor *fout = &urb_out->iso_frame_desc[i];
|
||||
@ -99,12 +100,11 @@ static int submit_audio_out_urb(struct snd_pcm_substream *substream)
|
||||
|
||||
urb_frames = urb_size / bytes_per_frame;
|
||||
|
||||
if(test_bit(BIT_PAUSE_PLAYBACK, &line6pcm->flags)) {
|
||||
if (test_bit(BIT_PAUSE_PLAYBACK, &line6pcm->flags)) {
|
||||
urb_out->transfer_buffer = line6pcm->wrap_out;
|
||||
memset(line6pcm->wrap_out, 0, urb_size);
|
||||
}
|
||||
else {
|
||||
if(line6pcm->pos_out + urb_frames > runtime->buffer_size) {
|
||||
} else {
|
||||
if (line6pcm->pos_out + urb_frames > runtime->buffer_size) {
|
||||
/*
|
||||
The transferred area goes over buffer boundary,
|
||||
copy the data to the temp buffer.
|
||||
@ -113,20 +113,18 @@ static int submit_audio_out_urb(struct snd_pcm_substream *substream)
|
||||
len = runtime->buffer_size - line6pcm->pos_out;
|
||||
urb_out->transfer_buffer = line6pcm->wrap_out;
|
||||
|
||||
if(len > 0) {
|
||||
if (len > 0) {
|
||||
memcpy(line6pcm->wrap_out, runtime->dma_area + line6pcm->pos_out * bytes_per_frame, len * bytes_per_frame);
|
||||
memcpy(line6pcm->wrap_out + len * bytes_per_frame, runtime->dma_area, (urb_frames - len) * bytes_per_frame);
|
||||
}
|
||||
else
|
||||
} else
|
||||
dev_err(s2m(substream), "driver bug: len = %d\n", len); /* this is somewhat paranoid */
|
||||
}
|
||||
else {
|
||||
} else {
|
||||
/* set the buffer pointer */
|
||||
urb_out->transfer_buffer = runtime->dma_area + line6pcm->pos_out * bytes_per_frame;
|
||||
}
|
||||
}
|
||||
|
||||
if((line6pcm->pos_out += urb_frames) >= runtime->buffer_size)
|
||||
if ((line6pcm->pos_out += urb_frames) >= runtime->buffer_size)
|
||||
line6pcm->pos_out -= runtime->buffer_size;
|
||||
|
||||
urb_out->transfer_buffer_length = urb_size;
|
||||
@ -134,13 +132,13 @@ static int submit_audio_out_urb(struct snd_pcm_substream *substream)
|
||||
change_volume(urb_out, line6pcm->volume, bytes_per_frame);
|
||||
|
||||
#if DO_DUMP_PCM_SEND
|
||||
for(i = 0; i < LINE6_ISO_PACKETS; ++i) {
|
||||
for (i = 0; i < LINE6_ISO_PACKETS; ++i) {
|
||||
struct usb_iso_packet_descriptor *fout = &urb_out->iso_frame_desc[i];
|
||||
line6_write_hexdump(line6pcm->line6, 'P', urb_out->transfer_buffer + fout->offset, fout->length);
|
||||
}
|
||||
#endif
|
||||
|
||||
if(usb_submit_urb(urb_out, GFP_ATOMIC) == 0)
|
||||
if (usb_submit_urb(urb_out, GFP_ATOMIC) == 0)
|
||||
set_bit(index, &line6pcm->active_urb_out);
|
||||
else
|
||||
dev_err(s2m(substream), "URB out #%d submission failed\n", index);
|
||||
@ -156,9 +154,11 @@ static int submit_audio_out_all_urbs(struct snd_pcm_substream *substream)
|
||||
{
|
||||
int ret, i;
|
||||
|
||||
for(i = 0; i < LINE6_ISO_BUFFERS; ++i)
|
||||
if((ret = submit_audio_out_urb(substream)) < 0)
|
||||
for (i = 0; i < LINE6_ISO_BUFFERS; ++i) {
|
||||
ret = submit_audio_out_urb(substream);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
@ -170,9 +170,9 @@ static void unlink_audio_out_urbs(struct snd_line6_pcm *line6pcm)
|
||||
{
|
||||
unsigned int i;
|
||||
|
||||
for(i = LINE6_ISO_BUFFERS; i--;) {
|
||||
if(test_bit(i, &line6pcm->active_urb_out)) {
|
||||
if(!test_and_set_bit(i, &line6pcm->unlink_urb_out)) {
|
||||
for (i = LINE6_ISO_BUFFERS; i--;) {
|
||||
if (test_bit(i, &line6pcm->active_urb_out)) {
|
||||
if (!test_and_set_bit(i, &line6pcm->unlink_urb_out)) {
|
||||
struct urb *u = line6pcm->urb_audio_out[i];
|
||||
usb_unlink_urb(u);
|
||||
}
|
||||
@ -195,7 +195,7 @@ static void wait_clear_audio_out_urbs(struct snd_line6_pcm *line6pcm)
|
||||
if (test_bit(i, &line6pcm->active_urb_out))
|
||||
alive++;
|
||||
}
|
||||
if (! alive)
|
||||
if (!alive)
|
||||
break;
|
||||
set_current_state(TASK_UNINTERRUPTIBLE);
|
||||
schedule_timeout(1);
|
||||
@ -229,39 +229,39 @@ static void audio_out_callback(struct urb *urb)
|
||||
struct snd_pcm_runtime *runtime = substream->runtime;
|
||||
|
||||
/* find index of URB */
|
||||
for(index = LINE6_ISO_BUFFERS; index--;)
|
||||
if(urb == line6pcm->urb_audio_out[index])
|
||||
for (index = LINE6_ISO_BUFFERS; index--;)
|
||||
if (urb == line6pcm->urb_audio_out[index])
|
||||
break;
|
||||
|
||||
if(index < 0)
|
||||
if (index < 0)
|
||||
return; /* URB has been unlinked asynchronously */
|
||||
|
||||
for(i = LINE6_ISO_PACKETS; i--;)
|
||||
for (i = LINE6_ISO_PACKETS; i--;)
|
||||
length += urb->iso_frame_desc[i].length;
|
||||
|
||||
spin_lock_irqsave(&line6pcm->lock_audio_out, flags);
|
||||
line6pcm->pos_out_done += length / line6pcm->properties->bytes_per_frame;
|
||||
|
||||
if(line6pcm->pos_out_done >= runtime->buffer_size)
|
||||
if (line6pcm->pos_out_done >= runtime->buffer_size)
|
||||
line6pcm->pos_out_done -= runtime->buffer_size;
|
||||
|
||||
clear_bit(index, &line6pcm->active_urb_out);
|
||||
|
||||
for(i = LINE6_ISO_PACKETS; i--;)
|
||||
if(urb->iso_frame_desc[i].status == -ESHUTDOWN) {
|
||||
for (i = LINE6_ISO_PACKETS; i--;)
|
||||
if (urb->iso_frame_desc[i].status == -ESHUTDOWN) {
|
||||
shutdown = 1;
|
||||
break;
|
||||
}
|
||||
|
||||
if(test_bit(index, &line6pcm->unlink_urb_out))
|
||||
if (test_bit(index, &line6pcm->unlink_urb_out))
|
||||
shutdown = 1;
|
||||
|
||||
spin_unlock_irqrestore(&line6pcm->lock_audio_out, flags);
|
||||
|
||||
if(!shutdown) {
|
||||
if (!shutdown) {
|
||||
submit_audio_out_urb(substream);
|
||||
|
||||
if((line6pcm->bytes_out += length) >= line6pcm->period_out) {
|
||||
if ((line6pcm->bytes_out += length) >= line6pcm->period_out) {
|
||||
line6pcm->bytes_out -= line6pcm->period_out;
|
||||
snd_pcm_period_elapsed(substream);
|
||||
}
|
||||
@ -275,8 +275,9 @@ static int snd_line6_playback_open(struct snd_pcm_substream *substream)
|
||||
struct snd_pcm_runtime *runtime = substream->runtime;
|
||||
struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream);
|
||||
|
||||
if((err = snd_pcm_hw_constraint_ratdens(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
|
||||
(&line6pcm->properties->snd_line6_rates))) < 0)
|
||||
err = snd_pcm_hw_constraint_ratdens(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
|
||||
(&line6pcm->properties->snd_line6_rates));
|
||||
if (err < 0)
|
||||
return err;
|
||||
|
||||
runtime->hw = line6pcm->properties->snd_line6_playback_hw;
|
||||
@ -297,23 +298,25 @@ static int snd_line6_playback_hw_params(struct snd_pcm_substream *substream, str
|
||||
|
||||
/* -- Florian Demski [FD] */
|
||||
/* don't ask me why, but this fixes the bug on my machine */
|
||||
if ( line6pcm == NULL ) {
|
||||
if ( substream->pcm == NULL )
|
||||
if (line6pcm == NULL) {
|
||||
if (substream->pcm == NULL)
|
||||
return -ENOMEM;
|
||||
if ( substream->pcm->private_data == NULL )
|
||||
if (substream->pcm->private_data == NULL)
|
||||
return -ENOMEM;
|
||||
substream->private_data = substream->pcm->private_data;
|
||||
line6pcm = snd_pcm_substream_chip( substream );
|
||||
line6pcm = snd_pcm_substream_chip(substream);
|
||||
}
|
||||
/* -- [FD] end */
|
||||
|
||||
if((ret = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
|
||||
ret = snd_pcm_lib_malloc_pages(substream,
|
||||
params_buffer_bytes(hw_params));
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
line6pcm->period_out = params_period_bytes(hw_params);
|
||||
line6pcm->wrap_out = kmalloc(2 * LINE6_ISO_PACKET_SIZE_MAX, GFP_KERNEL);
|
||||
|
||||
if(!line6pcm->wrap_out) {
|
||||
if (!line6pcm->wrap_out) {
|
||||
dev_err(s2m(substream), "cannot malloc wrap_out\n");
|
||||
return -ENOMEM;
|
||||
}
|
||||
@ -327,10 +330,8 @@ static int snd_line6_playback_hw_free(struct snd_pcm_substream *substream)
|
||||
struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream);
|
||||
unlink_wait_clear_audio_out_urbs(line6pcm);
|
||||
|
||||
if(line6pcm->wrap_out) {
|
||||
kfree(line6pcm->wrap_out);
|
||||
line6pcm->wrap_out = NULL;
|
||||
}
|
||||
kfree(line6pcm->wrap_out);
|
||||
line6pcm->wrap_out = NULL;
|
||||
|
||||
return snd_pcm_lib_free_pages(substream);
|
||||
}
|
||||
@ -342,12 +343,12 @@ int snd_line6_playback_trigger(struct snd_pcm_substream *substream, int cmd)
|
||||
int err;
|
||||
line6pcm->count_out = 0;
|
||||
|
||||
switch(cmd) {
|
||||
switch (cmd) {
|
||||
case SNDRV_PCM_TRIGGER_START:
|
||||
if(!test_and_set_bit(BIT_RUNNING_PLAYBACK, &line6pcm->flags)) {
|
||||
if (!test_and_set_bit(BIT_RUNNING_PLAYBACK, &line6pcm->flags)) {
|
||||
err = submit_audio_out_all_urbs(substream);
|
||||
|
||||
if(err < 0) {
|
||||
if (err < 0) {
|
||||
clear_bit(BIT_RUNNING_PLAYBACK, &line6pcm->flags);
|
||||
return err;
|
||||
}
|
||||
@ -356,7 +357,7 @@ int snd_line6_playback_trigger(struct snd_pcm_substream *substream, int cmd)
|
||||
break;
|
||||
|
||||
case SNDRV_PCM_TRIGGER_STOP:
|
||||
if(test_and_clear_bit(BIT_RUNNING_PLAYBACK, &line6pcm->flags))
|
||||
if (test_and_clear_bit(BIT_RUNNING_PLAYBACK, &line6pcm->flags))
|
||||
unlink_audio_out_urbs(line6pcm);
|
||||
|
||||
break;
|
||||
@ -401,13 +402,13 @@ int create_audio_out_urbs(struct snd_line6_pcm *line6pcm)
|
||||
int i;
|
||||
|
||||
/* create audio URBs and fill in constant values: */
|
||||
for(i = 0; i < LINE6_ISO_BUFFERS; ++i) {
|
||||
for (i = 0; i < LINE6_ISO_BUFFERS; ++i) {
|
||||
struct urb *urb;
|
||||
|
||||
/* URB for audio out: */
|
||||
urb = line6pcm->urb_audio_out[i] = usb_alloc_urb(LINE6_ISO_PACKETS, GFP_KERNEL);
|
||||
|
||||
if(urb == NULL) {
|
||||
if (urb == NULL) {
|
||||
dev_err(line6pcm->line6->ifcdev, "Out of memory\n");
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user