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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>
This commit is contained in:
Eliot Blennerhassett 2011-07-23 12:36:25 +12:00 committed by Takashi Iwai
parent 8f398ae72f
commit acb03d440b
3 changed files with 20 additions and 26 deletions
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12
include/sound/pcm.h
View file

@ -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
*/

13
sound/core/pcm_lib.c
View file

@ -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",
@ -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 */
@ -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);
}
@ -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)
@ -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",
@ -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",

21
sound/pci/asihpi/asihpi.c
View file

@ -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