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ALSA: Make snd_pcm_debug_name usable outside pcm_lib
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Formatting a PCM name is useful for module debug too.
Add snd_prefix when making function public.

[minor coding-style fixes by tiwai]

Signed-off-by: Eliot Blennerhassett <eblennerhassett@audioscience.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Eliot Blennerhassett authored and Takashi Iwai committed Jul 24, 2011
1 parent 8f398ae commit acb03d4
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Showing 3 changed files with 20 additions and 26 deletions.
12 changes: 12 additions & 0 deletions include/sound/pcm.h
Original file line number Diff line number Diff line change
Expand Up @@ -507,6 +507,18 @@ void snd_pcm_detach_substream(struct snd_pcm_substream *substream);
void snd_pcm_vma_notify_data(void *client, void *data);
int snd_pcm_mmap_data(struct snd_pcm_substream *substream, struct file *file, struct vm_area_struct *area);


#ifdef CONFIG_SND_DEBUG
void snd_pcm_debug_name(struct snd_pcm_substream *substream,
char *name, size_t len);
#else
static inline void
snd_pcm_debug_name(struct snd_pcm_substream *substream, char *buf, size_t size)
{
*buf = 0;
}
#endif

/*
* PCM library
*/
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13 changes: 8 additions & 5 deletions sound/core/pcm_lib.c
Original file line number Diff line number Diff line change
Expand Up @@ -128,7 +128,8 @@ void snd_pcm_playback_silence(struct snd_pcm_substream *substream, snd_pcm_ufram
}
}

static void pcm_debug_name(struct snd_pcm_substream *substream,
#ifdef CONFIG_SND_DEBUG
void snd_pcm_debug_name(struct snd_pcm_substream *substream,
char *name, size_t len)
{
snprintf(name, len, "pcmC%dD%d%c:%d",
Expand All @@ -137,6 +138,8 @@ static void pcm_debug_name(struct snd_pcm_substream *substream,
substream->stream ? 'c' : 'p',
substream->number);
}
EXPORT_SYMBOL(snd_pcm_debug_name);
#endif

#define XRUN_DEBUG_BASIC (1<<0)
#define XRUN_DEBUG_STACK (1<<1) /* dump also stack */
Expand Down Expand Up @@ -168,7 +171,7 @@ static void xrun(struct snd_pcm_substream *substream)
snd_pcm_stop(substream, SNDRV_PCM_STATE_XRUN);
if (xrun_debug(substream, XRUN_DEBUG_BASIC)) {
char name[16];
pcm_debug_name(substream, name, sizeof(name));
snd_pcm_debug_name(substream, name, sizeof(name));
snd_printd(KERN_DEBUG "XRUN: %s\n", name);
dump_stack_on_xrun(substream);
}
Expand Down Expand Up @@ -243,7 +246,7 @@ static void xrun_log_show(struct snd_pcm_substream *substream)
return;
if (xrun_debug(substream, XRUN_DEBUG_LOGONCE) && log->hit)
return;
pcm_debug_name(substream, name, sizeof(name));
snd_pcm_debug_name(substream, name, sizeof(name));
for (cnt = 0, idx = log->idx; cnt < XRUN_LOG_CNT; cnt++) {
entry = &log->entries[idx];
if (entry->period_size == 0)
Expand Down Expand Up @@ -319,7 +322,7 @@ static int snd_pcm_update_hw_ptr0(struct snd_pcm_substream *substream,
if (pos >= runtime->buffer_size) {
if (printk_ratelimit()) {
char name[16];
pcm_debug_name(substream, name, sizeof(name));
snd_pcm_debug_name(substream, name, sizeof(name));
xrun_log_show(substream);
snd_printd(KERN_ERR "BUG: %s, pos = %ld, "
"buffer size = %ld, period size = %ld\n",
Expand Down Expand Up @@ -364,7 +367,7 @@ static int snd_pcm_update_hw_ptr0(struct snd_pcm_substream *substream,
if (xrun_debug(substream, in_interrupt ?
XRUN_DEBUG_PERIODUPDATE : XRUN_DEBUG_HWPTRUPDATE)) {
char name[16];
pcm_debug_name(substream, name, sizeof(name));
snd_pcm_debug_name(substream, name, sizeof(name));
snd_printd("%s_update: %s: pos=%u/%u/%u, "
"hwptr=%ld/%ld/%ld/%ld\n",
in_interrupt ? "period" : "hwptr",
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21 changes: 0 additions & 21 deletions sound/pci/asihpi/asihpi.c
Original file line number Diff line number Diff line change
Expand Up @@ -41,31 +41,10 @@
#include <sound/tlv.h>
#include <sound/hwdep.h>


MODULE_LICENSE("GPL");
MODULE_AUTHOR("AudioScience inc. <support@audioscience.com>");
MODULE_DESCRIPTION("AudioScience ALSA ASI5000 ASI6000 ASI87xx ASI89xx");

#if defined CONFIG_SND_DEBUG
/* copied from pcm_lib.c, hope later patch will make that version public
and this copy can be removed */
static inline void
snd_pcm_debug_name(struct snd_pcm_substream *substream, char *buf, size_t size)
{
snprintf(buf, size, "pcmC%dD%d%c:%d",
substream->pcm->card->number,
substream->pcm->device,
substream->stream ? 'c' : 'p',
substream->number);
}
#else
static inline void
snd_pcm_debug_name(struct snd_pcm_substream *substream, char *buf, size_t size)
{
*buf = 0;
}
#endif

#if defined CONFIG_SND_DEBUG_VERBOSE
/**
* snd_printddd - very verbose debug printk
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