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Added debug printf

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This commit is contained in:
Jaroslav Kysela 2002-03-11 13:18:46 +00:00
parent a5cdbcced2
commit 89d3f1d82f
1 changed files with 22 additions and 4 deletions
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26
src/pcm/pcm_hw.c
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@ -39,6 +39,9 @@
#include "pcm_local.h"
#include "../control/control_local.h"
//#define DEBUG_RW /* use to debug readi/writei/readn/writen */
//#define DEBUG_MMAP /* debug mmap_commit */
#ifndef PIC
/* entry for static linking */
const char *_snd_module_pcm_hw = "";
@ -446,13 +449,16 @@ static int snd_pcm_hw_resume(snd_pcm_t *pcm)
static snd_pcm_sframes_t snd_pcm_hw_writei(snd_pcm_t *pcm, const void *buffer, snd_pcm_uframes_t size)
{
snd_pcm_sframes_t result;
int result;
snd_pcm_hw_t *hw = pcm->private_data;
int fd = hw->fd;
struct sndrv_xferi xferi;
xferi.buf = (char*) buffer;
xferi.frames = size;
result = ioctl(fd, SNDRV_PCM_IOCTL_WRITEI_FRAMES, &xferi);
#ifdef DEBUG_RW
fprintf(stderr, "hw_writei: frames = %li, result = %i, result = %li\n", size, result, xferi.result);
#endif
if (result < 0)
return -errno;
return xferi.result;
@ -460,13 +466,16 @@ static snd_pcm_sframes_t snd_pcm_hw_writei(snd_pcm_t *pcm, const void *buffer, s
static snd_pcm_sframes_t snd_pcm_hw_writen(snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size)
{
snd_pcm_sframes_t result;
int result;
snd_pcm_hw_t *hw = pcm->private_data;
int fd = hw->fd;
struct sndrv_xfern xfern;
xfern.bufs = bufs;
xfern.frames = size;
result = ioctl(fd, SNDRV_PCM_IOCTL_WRITEN_FRAMES, &xfern);
#ifdef DEBUG_RW
fprintf(stderr, "hw_writen: frames = %li, result = %i, result = %li\n", size, result, xfern.result);
#endif
if (result < 0)
return -errno;
return xfern.result;
@ -474,13 +483,16 @@ static snd_pcm_sframes_t snd_pcm_hw_writen(snd_pcm_t *pcm, void **bufs, snd_pcm_
static snd_pcm_sframes_t snd_pcm_hw_readi(snd_pcm_t *pcm, void *buffer, snd_pcm_uframes_t size)
{
snd_pcm_sframes_t result;
int result;
snd_pcm_hw_t *hw = pcm->private_data;
int fd = hw->fd;
struct sndrv_xferi xferi;
xferi.buf = buffer;
xferi.frames = size;
result = ioctl(fd, SNDRV_PCM_IOCTL_READI_FRAMES, &xferi);
#ifdef DEBUG_RW
fprintf(stderr, "hw_readi: frames = %li, result = %i, result = %li\n", size, result, xferi.result);
#endif
if (result < 0)
return -errno;
UPDATE_SHADOW_PTR(hw);
@ -489,13 +501,16 @@ static snd_pcm_sframes_t snd_pcm_hw_readi(snd_pcm_t *pcm, void *buffer, snd_pcm_
static snd_pcm_sframes_t snd_pcm_hw_readn(snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size)
{
snd_pcm_sframes_t result;
int result;
snd_pcm_hw_t *hw = pcm->private_data;
int fd = hw->fd;
struct sndrv_xfern xfern;
xfern.bufs = bufs;
xfern.frames = size;
result = ioctl(fd, SNDRV_PCM_IOCTL_READN_FRAMES, &xfern);
#ifdef DEBUG_RW
fprintf(stderr, "hw_readn: frames = %li, result = %i, result = %li\n", size, result, xfern.result);
#endif
if (result < 0)
return -errno;
UPDATE_SHADOW_PTR(hw);
@ -619,6 +634,9 @@ static snd_pcm_sframes_t snd_pcm_hw_mmap_commit(snd_pcm_t *pcm,
}
}
snd_pcm_mmap_appl_forward(pcm, size);
#ifdef DEBUG_MMAP
fprintf(stderr, "appl_forward: hw_ptr = %li, appl_ptr = %li, size = %li\n", *pcm->hw_ptr, *pcm->appl_ptr, size);
#endif
return size;
}