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ALSA: pcm_lib.c - convert second xrun_debug() parameter to use defines 

To increase code readability, convert send xrun_debug() argument to
use defines.

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Jaroslav Kysela 2009-12-17 17:34:39 +01:00
parent 4757968dbf
commit 741b20cfb9
1 changed files with 17 additions and 10 deletions
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27
sound/core/pcm_lib.c
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@ -126,15 +126,22 @@ void snd_pcm_playback_silence(struct snd_pcm_substream *substream, snd_pcm_ufram
}
}
#define XRUN_DEBUG_BASIC (1<<0)
#define XRUN_DEBUG_STACK (1<<1) /* dump also stack */
#define XRUN_DEBUG_JIFFIESCHECK (1<<2) /* do jiffies check */
#define XRUN_DEBUG_PERIODUPDATE (1<<3) /* full period update info */
#define XRUN_DEBUG_HWPTRUPDATE (1<<4) /* full hwptr update info */
#ifdef CONFIG_SND_PCM_XRUN_DEBUG
#define xrun_debug(substream, mask) ((substream)->pstr->xrun_debug & (mask))
#define xrun_debug(substream, mask) \
((substream)->pstr->xrun_debug & (mask))
#else
#define xrun_debug(substream, mask) 0
#endif
#define dump_stack_on_xrun(substream) do { \
if (xrun_debug(substream, 2)) \
dump_stack(); \
#define dump_stack_on_xrun(substream) do { \
if (xrun_debug(substream, XRUN_DEBUG_STACK)) \
dump_stack(); \
} while (0)
static void pcm_debug_name(struct snd_pcm_substream *substream,
@ -154,7 +161,7 @@ static void xrun(struct snd_pcm_substream *substream)
if (runtime->tstamp_mode == SNDRV_PCM_TSTAMP_ENABLE)
snd_pcm_gettime(runtime, (struct timespec *)&runtime->status->tstamp);
snd_pcm_stop(substream, SNDRV_PCM_STATE_XRUN);
if (xrun_debug(substream, 1)) {
if (xrun_debug(substream, XRUN_DEBUG_BASIC)) {
char name[16];
pcm_debug_name(substream, name, sizeof(name));
snd_printd(KERN_DEBUG "XRUN: %s\n", name);
@ -215,7 +222,7 @@ static int snd_pcm_update_hw_ptr_post(struct snd_pcm_substream *substream,
#define hw_ptr_error(substream, fmt, args...) \
do { \
if (xrun_debug(substream, 1)) { \
if (xrun_debug(substream, XRUN_DEBUG_BASIC)) { \
if (printk_ratelimit()) { \
snd_printd("PCM: " fmt, ##args); \
} \
@ -237,7 +244,7 @@ static int snd_pcm_update_hw_ptr_interrupt(struct snd_pcm_substream *substream)
xrun(substream);
return -EPIPE;
}
if (xrun_debug(substream, 8)) {
if (xrun_debug(substream, XRUN_DEBUG_PERIODUPDATE)) {
char name[16];
pcm_debug_name(substream, name, sizeof(name));
snd_printd("period_update: %s: pos=0x%x/0x%x/0x%x, "
@ -290,7 +297,7 @@ static int snd_pcm_update_hw_ptr_interrupt(struct snd_pcm_substream *substream)
}
/* Do jiffies check only in xrun_debug mode */
if (!xrun_debug(substream, 4))
if (!xrun_debug(substream, XRUN_DEBUG_JIFFIESCHECK))
goto no_jiffies_check;
/* Skip the jiffies check for hardwares with BATCH flag.
@ -369,7 +376,7 @@ int snd_pcm_update_hw_ptr(struct snd_pcm_substream *substream)
xrun(substream);
return -EPIPE;
}
if (xrun_debug(substream, 16)) {
if (xrun_debug(substream, XRUN_DEBUG_HWPTRUPDATE)) {
char name[16];
pcm_debug_name(substream, name, sizeof(name));
snd_printd("hw_update: %s: pos=0x%x/0x%x/0x%x, "
@ -403,7 +410,7 @@ int snd_pcm_update_hw_ptr(struct snd_pcm_substream *substream)
new_hw_ptr = hw_base + pos;
}
/* Do jiffies check only in xrun_debug mode */
if (!xrun_debug(substream, 4))
if (!xrun_debug(substream, XRUN_DEBUG_JIFFIESCHECK))
goto no_jiffies_check;
if (delta < runtime->delay)
goto no_jiffies_check;