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Fix PCM without control/status mmap

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Fix the update of appl_ptr via mmap_commit when control/status structs
are not mmapped (e.g. 32bit compatible mode on 64bit kernel).
This commit is contained in:
Takashi Iwai 2006-03-29 09:32:18 +00:00
parent 504a2e34a4
commit 18a6132a66
2 changed files with 5 additions and 1 deletions
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1
src/pcm/pcm_hw.c
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@ -942,6 +942,7 @@ static snd_pcm_sframes_t snd_pcm_hw_mmap_commit(snd_pcm_t *pcm,
}
}
snd_pcm_mmap_appl_forward(pcm, size);
sync_ptr(hw, 0);
#ifdef DEBUG_MMAP
fprintf(stderr, "appl_forward: hw_ptr = %li, appl_ptr = %li, size = %li\n", *pcm->hw.ptr, *pcm->appl.ptr, size);
#endif

5
src/pcm/pcm_plugin.c
View file

@ -524,6 +524,9 @@ int snd_pcm_plugin_status(snd_pcm_t *pcm, snd_pcm_status_t * status)
snd_atomic_read_init(&ratom, &plugin->watom);
_again:
snd_atomic_read_begin(&ratom);
/* sync with the latest hw and appl ptrs */
snd_pcm_plugin_avail_update(pcm);
err = snd_pcm_status(plugin->gen.slave, status);
if (err < 0) {
snd_atomic_read_ok(&ratom);
@ -545,7 +548,7 @@ int snd_pcm_plugin_status(snd_pcm_t *pcm, snd_pcm_status_t * status)
}
snd_pcm_fast_ops_t snd_pcm_plugin_fast_ops = {
.status = snd_pcm_generic_status,
.status = snd_pcm_plugin_status,
.state = snd_pcm_generic_state,
.hwsync = snd_pcm_generic_hwsync,
.delay = snd_pcm_plugin_delay,