26 |
#define AUDIO_CAP "audio" |
#define AUDIO_CAP "audio" |
27 |
#include "audio_int.h" |
#include "audio_int.h" |
28 |
|
|
|
static void audio_pcm_hw_fini_in (HWVoiceIn *hw); |
|
|
static void audio_pcm_hw_fini_out (HWVoiceOut *hw); |
|
|
|
|
|
static LIST_HEAD (hw_in_listhead, HWVoiceIn) hw_head_in; |
|
|
static LIST_HEAD (hw_out_listhead, HWVoiceOut) hw_head_out; |
|
|
|
|
29 |
/* #define DEBUG_PLIVE */ |
/* #define DEBUG_PLIVE */ |
30 |
/* #define DEBUG_LIVE */ |
/* #define DEBUG_LIVE */ |
31 |
/* #define DEBUG_OUT */ |
/* #define DEBUG_OUT */ |
32 |
|
|
33 |
|
#define SW_NAME(sw) (sw)->name ? (sw)->name : "unknown" |
34 |
|
|
35 |
static struct audio_driver *drvtab[] = { |
static struct audio_driver *drvtab[] = { |
36 |
#ifdef CONFIG_OSS |
#ifdef CONFIG_OSS |
37 |
&oss_audio_driver, |
&oss_audio_driver, |
55 |
&wav_audio_driver |
&wav_audio_driver |
56 |
}; |
}; |
57 |
|
|
58 |
AudioState audio_state = { |
struct fixed_settings { |
59 |
/* Out */ |
int enabled; |
60 |
1, /* use fixed settings */ |
int nb_voices; |
61 |
44100, /* fixed frequency */ |
int greedy; |
62 |
2, /* fixed channels */ |
audsettings_t settings; |
63 |
AUD_FMT_S16, /* fixed format */ |
}; |
|
1, /* number of hw voices */ |
|
|
1, /* greedy */ |
|
|
|
|
|
/* In */ |
|
|
1, /* use fixed settings */ |
|
|
44100, /* fixed frequency */ |
|
|
2, /* fixed channels */ |
|
|
AUD_FMT_S16, /* fixed format */ |
|
|
1, /* number of hw voices */ |
|
|
1, /* greedy */ |
|
64 |
|
|
65 |
NULL, /* driver opaque */ |
static struct { |
66 |
NULL, /* driver */ |
struct fixed_settings fixed_out; |
67 |
|
struct fixed_settings fixed_in; |
68 |
|
union { |
69 |
|
int hz; |
70 |
|
int64_t ticks; |
71 |
|
} period; |
72 |
|
int plive; |
73 |
|
} conf = { |
74 |
|
{ /* DAC fixed settings */ |
75 |
|
1, /* enabled */ |
76 |
|
1, /* nb_voices */ |
77 |
|
1, /* greedy */ |
78 |
|
{ |
79 |
|
44100, /* freq */ |
80 |
|
2, /* nchannels */ |
81 |
|
AUD_FMT_S16 /* fmt */ |
82 |
|
} |
83 |
|
}, |
84 |
|
|
85 |
|
{ /* ADC fixed settings */ |
86 |
|
1, /* enabled */ |
87 |
|
1, /* nb_voices */ |
88 |
|
1, /* greedy */ |
89 |
|
{ |
90 |
|
44100, /* freq */ |
91 |
|
2, /* nchannels */ |
92 |
|
AUD_FMT_S16 /* fmt */ |
93 |
|
} |
94 |
|
}, |
95 |
|
|
|
NULL, /* timer handle */ |
|
96 |
{ 0 }, /* period */ |
{ 0 }, /* period */ |
97 |
0 /* plive */ |
0 /* plive */ |
98 |
}; |
}; |
99 |
|
|
100 |
|
static AudioState glob_audio_state; |
101 |
|
|
102 |
volume_t nominal_volume = { |
volume_t nominal_volume = { |
103 |
0, |
0, |
104 |
#ifdef FLOAT_MIXENG |
#ifdef FLOAT_MIXENG |
163 |
} |
} |
164 |
#endif |
#endif |
165 |
|
|
166 |
|
void *audio_calloc (const char *funcname, int nmemb, size_t size) |
167 |
|
{ |
168 |
|
int cond; |
169 |
|
size_t len; |
170 |
|
|
171 |
|
len = nmemb * size; |
172 |
|
cond = !nmemb || !size; |
173 |
|
cond |= nmemb < 0; |
174 |
|
cond |= len < size; |
175 |
|
|
176 |
|
if (audio_bug ("audio_calloc", cond)) { |
177 |
|
AUD_log (NULL, "%s passed invalid arguments to audio_calloc\n", |
178 |
|
funcname); |
179 |
|
AUD_log (NULL, "nmemb=%d size=%d (len=%d)\n", nmemb, size, len); |
180 |
|
return NULL; |
181 |
|
} |
182 |
|
|
183 |
|
return qemu_mallocz (len); |
184 |
|
} |
185 |
|
|
186 |
static char *audio_alloc_prefix (const char *s) |
static char *audio_alloc_prefix (const char *s) |
187 |
{ |
{ |
188 |
const char qemu_prefix[] = "QEMU_"; |
const char qemu_prefix[] = "QEMU_"; |
421 |
} |
} |
422 |
|
|
423 |
len = strlen (opt->name); |
len = strlen (opt->name); |
424 |
|
/* len of opt->name + len of prefix + size of qemu_prefix |
425 |
|
* (includes trailing zero) + zero + underscore (on behalf of |
426 |
|
* sizeof) */ |
427 |
optname = qemu_malloc (len + preflen + sizeof (qemu_prefix) + 1); |
optname = qemu_malloc (len + preflen + sizeof (qemu_prefix) + 1); |
428 |
if (!optname) { |
if (!optname) { |
429 |
dolog ("Can not allocate memory for option name `%s'\n", |
dolog ("Could not allocate memory for option name `%s'\n", |
430 |
opt->name); |
opt->name); |
431 |
continue; |
continue; |
432 |
} |
} |
433 |
|
|
434 |
strcpy (optname, qemu_prefix); |
strcpy (optname, qemu_prefix); |
435 |
|
|
436 |
|
/* copy while upper-casing, including trailing zero */ |
437 |
for (i = 0; i <= preflen; ++i) { |
for (i = 0; i <= preflen; ++i) { |
438 |
optname[i + sizeof (qemu_prefix) - 1] = toupper (prefix[i]); |
optname[i + sizeof (qemu_prefix) - 1] = toupper (prefix[i]); |
439 |
} |
} |
478 |
} |
} |
479 |
} |
} |
480 |
|
|
481 |
static int audio_pcm_info_eq (struct audio_pcm_info *info, int freq, |
static void audio_print_settings (audsettings_t *as) |
482 |
int nchannels, audfmt_e fmt) |
{ |
483 |
|
dolog ("frequency=%d nchannels=%d fmt=", as->freq, as->nchannels); |
484 |
|
|
485 |
|
switch (as->fmt) { |
486 |
|
case AUD_FMT_S8: |
487 |
|
AUD_log (NULL, "S8"); |
488 |
|
break; |
489 |
|
case AUD_FMT_U8: |
490 |
|
AUD_log (NULL, "U8"); |
491 |
|
break; |
492 |
|
case AUD_FMT_S16: |
493 |
|
AUD_log (NULL, "S16"); |
494 |
|
break; |
495 |
|
case AUD_FMT_U16: |
496 |
|
AUD_log (NULL, "U16"); |
497 |
|
break; |
498 |
|
default: |
499 |
|
AUD_log (NULL, "invalid(%d)", as->fmt); |
500 |
|
break; |
501 |
|
} |
502 |
|
AUD_log (NULL, "\n"); |
503 |
|
} |
504 |
|
|
505 |
|
static int audio_validate_settigs (audsettings_t *as) |
506 |
|
{ |
507 |
|
int invalid; |
508 |
|
|
509 |
|
invalid = as->nchannels != 1 && as->nchannels != 2; |
510 |
|
|
511 |
|
switch (as->fmt) { |
512 |
|
case AUD_FMT_S8: |
513 |
|
case AUD_FMT_U8: |
514 |
|
case AUD_FMT_S16: |
515 |
|
case AUD_FMT_U16: |
516 |
|
break; |
517 |
|
default: |
518 |
|
invalid = 1; |
519 |
|
break; |
520 |
|
} |
521 |
|
|
522 |
|
invalid |= as->freq <= 0; |
523 |
|
|
524 |
|
if (invalid) { |
525 |
|
return -1; |
526 |
|
} |
527 |
|
return 0; |
528 |
|
} |
529 |
|
|
530 |
|
static int audio_pcm_info_eq (struct audio_pcm_info *info, audsettings_t *as) |
531 |
{ |
{ |
532 |
int bits = 8, sign = 0; |
int bits = 8, sign = 0; |
533 |
|
|
534 |
switch (fmt) { |
switch (as->fmt) { |
535 |
case AUD_FMT_S8: |
case AUD_FMT_S8: |
536 |
sign = 1; |
sign = 1; |
537 |
case AUD_FMT_U8: |
case AUD_FMT_U8: |
543 |
bits = 16; |
bits = 16; |
544 |
break; |
break; |
545 |
} |
} |
546 |
return info->freq == freq |
return info->freq == as->freq |
547 |
&& info->nchannels == nchannels |
&& info->nchannels == as->nchannels |
548 |
&& info->sign == sign |
&& info->sign == sign |
549 |
&& info->bits == bits; |
&& info->bits == bits; |
550 |
} |
} |
551 |
|
|
552 |
void audio_pcm_init_info (struct audio_pcm_info *info, int freq, |
void audio_pcm_init_info ( |
553 |
int nchannels, audfmt_e fmt, int swap_endian) |
struct audio_pcm_info *info, |
554 |
|
audsettings_t *as, |
555 |
|
int swap_endian |
556 |
|
) |
557 |
{ |
{ |
558 |
int bits = 8, sign = 0; |
int bits = 8, sign = 0; |
559 |
|
|
560 |
switch (fmt) { |
switch (as->fmt) { |
561 |
case AUD_FMT_S8: |
case AUD_FMT_S8: |
562 |
sign = 1; |
sign = 1; |
563 |
case AUD_FMT_U8: |
case AUD_FMT_U8: |
570 |
break; |
break; |
571 |
} |
} |
572 |
|
|
573 |
info->freq = freq; |
info->freq = as->freq; |
574 |
info->bits = bits; |
info->bits = bits; |
575 |
info->sign = sign; |
info->sign = sign; |
576 |
info->nchannels = nchannels; |
info->nchannels = as->nchannels; |
577 |
info->shift = (nchannels == 2) + (bits == 16); |
info->shift = (as->nchannels == 2) + (bits == 16); |
578 |
info->align = (1 << info->shift) - 1; |
info->align = (1 << info->shift) - 1; |
579 |
info->bytes_per_second = info->freq << info->shift; |
info->bytes_per_second = info->freq << info->shift; |
580 |
info->swap_endian = swap_endian; |
info->swap_endian = swap_endian; |
623 |
|
|
624 |
static int audio_pcm_hw_alloc_resources_in (HWVoiceIn *hw) |
static int audio_pcm_hw_alloc_resources_in (HWVoiceIn *hw) |
625 |
{ |
{ |
626 |
hw->conv_buf = qemu_mallocz (hw->samples * sizeof (st_sample_t)); |
hw->conv_buf = audio_calloc (AUDIO_FUNC, hw->samples, sizeof (st_sample_t)); |
627 |
if (!hw->conv_buf) { |
if (!hw->conv_buf) { |
628 |
|
dolog ("Could not allocate ADC conversion buffer (%d bytes)\n", |
629 |
|
hw->samples * sizeof (st_sample_t)); |
630 |
return -1; |
return -1; |
631 |
} |
} |
632 |
return 0; |
return 0; |
633 |
} |
} |
634 |
|
|
635 |
static int audio_pcm_hw_init_in (HWVoiceIn *hw, int freq, int nchannels, audfmt_e fmt) |
static int audio_pcm_hw_find_min_in (HWVoiceIn *hw) |
|
{ |
|
|
audio_pcm_hw_fini_in (hw); |
|
|
|
|
|
if (hw->pcm_ops->init_in (hw, freq, nchannels, fmt)) { |
|
|
memset (hw, 0, audio_state.drv->voice_size_in); |
|
|
return -1; |
|
|
} |
|
|
LIST_INIT (&hw->sw_head); |
|
|
hw->active = 1; |
|
|
hw->samples = hw->bufsize >> hw->info.shift; |
|
|
hw->conv = |
|
|
mixeng_conv |
|
|
[nchannels == 2] |
|
|
[hw->info.sign] |
|
|
[hw->info.swap_endian] |
|
|
[hw->info.bits == 16]; |
|
|
if (audio_pcm_hw_alloc_resources_in (hw)) { |
|
|
audio_pcm_hw_free_resources_in (hw); |
|
|
return -1; |
|
|
} |
|
|
return 0; |
|
|
} |
|
|
|
|
|
static uint64_t audio_pcm_hw_find_min_in (HWVoiceIn *hw) |
|
636 |
{ |
{ |
637 |
SWVoiceIn *sw; |
SWVoiceIn *sw; |
638 |
int m = hw->total_samples_captured; |
int m = hw->total_samples_captured; |
675 |
static int audio_pcm_sw_alloc_resources_in (SWVoiceIn *sw) |
static int audio_pcm_sw_alloc_resources_in (SWVoiceIn *sw) |
676 |
{ |
{ |
677 |
int samples = ((int64_t) sw->hw->samples << 32) / sw->ratio; |
int samples = ((int64_t) sw->hw->samples << 32) / sw->ratio; |
678 |
sw->conv_buf = qemu_mallocz (samples * sizeof (st_sample_t)); |
sw->conv_buf = audio_calloc (AUDIO_FUNC, samples, sizeof (st_sample_t)); |
679 |
if (!sw->conv_buf) { |
if (!sw->conv_buf) { |
680 |
|
dolog ("Could not allocate buffer for `%s' (%d bytes)\n", |
681 |
|
SW_NAME (sw), samples * sizeof (st_sample_t)); |
682 |
return -1; |
return -1; |
683 |
} |
} |
684 |
|
|
691 |
return 0; |
return 0; |
692 |
} |
} |
693 |
|
|
694 |
static int audio_pcm_sw_init_in (SWVoiceIn *sw, HWVoiceIn *hw, const char *name, |
static int audio_pcm_sw_init_in ( |
695 |
int freq, int nchannels, audfmt_e fmt) |
SWVoiceIn *sw, |
696 |
{ |
HWVoiceIn *hw, |
697 |
audio_pcm_init_info (&sw->info, freq, nchannels, fmt, |
const char *name, |
698 |
/* None of the cards emulated by QEMU are big-endian |
audsettings_t *as |
699 |
hence following shortcut */ |
) |
700 |
audio_need_to_swap_endian (0)); |
{ |
701 |
|
/* None of the cards emulated by QEMU are big-endian |
702 |
|
hence following shortcut */ |
703 |
|
audio_pcm_init_info (&sw->info, as, audio_need_to_swap_endian (0)); |
704 |
sw->hw = hw; |
sw->hw = hw; |
705 |
sw->ratio = ((int64_t) sw->info.freq << 32) / sw->hw->info.freq; |
sw->ratio = ((int64_t) sw->info.freq << 32) / sw->hw->info.freq; |
706 |
|
|
707 |
sw->clip = |
sw->clip = |
708 |
mixeng_clip |
mixeng_clip |
709 |
[nchannels == 2] |
[sw->info.nchannels == 2] |
710 |
[sw->info.sign] |
[sw->info.sign] |
711 |
[sw->info.swap_endian] |
[sw->info.swap_endian] |
712 |
[sw->info.bits == 16]; |
[sw->info.bits == 16]; |
773 |
|
|
774 |
if (audio_bug (AUDIO_FUNC, osamp < 0)) { |
if (audio_bug (AUDIO_FUNC, osamp < 0)) { |
775 |
dolog ("osamp=%d\n", osamp); |
dolog ("osamp=%d\n", osamp); |
776 |
|
return 0; |
777 |
} |
} |
778 |
|
|
779 |
st_rate_flow (sw->rate, src, dst, &isamp, &osamp); |
st_rate_flow (sw->rate, src, dst, &isamp, &osamp); |
792 |
/* |
/* |
793 |
* Hard voice (playback) |
* Hard voice (playback) |
794 |
*/ |
*/ |
|
static int audio_pcm_hw_find_min_out (HWVoiceOut *hw, int *nb_livep) |
|
|
{ |
|
|
SWVoiceOut *sw; |
|
|
int m = INT_MAX; |
|
|
int nb_live = 0; |
|
|
|
|
|
for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) { |
|
|
if (sw->active || !sw->empty) { |
|
|
m = audio_MIN (m, sw->total_hw_samples_mixed); |
|
|
nb_live += 1; |
|
|
} |
|
|
} |
|
|
|
|
|
*nb_livep = nb_live; |
|
|
return m; |
|
|
} |
|
|
|
|
795 |
static void audio_pcm_hw_free_resources_out (HWVoiceOut *hw) |
static void audio_pcm_hw_free_resources_out (HWVoiceOut *hw) |
796 |
{ |
{ |
797 |
if (hw->mix_buf) { |
if (hw->mix_buf) { |
803 |
|
|
804 |
static int audio_pcm_hw_alloc_resources_out (HWVoiceOut *hw) |
static int audio_pcm_hw_alloc_resources_out (HWVoiceOut *hw) |
805 |
{ |
{ |
806 |
hw->mix_buf = qemu_mallocz (hw->samples * sizeof (st_sample_t)); |
hw->mix_buf = audio_calloc (AUDIO_FUNC, hw->samples, sizeof (st_sample_t)); |
807 |
if (!hw->mix_buf) { |
if (!hw->mix_buf) { |
808 |
|
dolog ("Could not allocate DAC mixing buffer (%d bytes)\n", |
809 |
|
hw->samples * sizeof (st_sample_t)); |
810 |
return -1; |
return -1; |
811 |
} |
} |
812 |
|
|
813 |
return 0; |
return 0; |
814 |
} |
} |
815 |
|
|
816 |
static int audio_pcm_hw_init_out (HWVoiceOut *hw, int freq, |
static int audio_pcm_hw_find_min_out (HWVoiceOut *hw, int *nb_livep) |
|
int nchannels, audfmt_e fmt) |
|
817 |
{ |
{ |
818 |
audio_pcm_hw_fini_out (hw); |
SWVoiceOut *sw; |
819 |
if (hw->pcm_ops->init_out (hw, freq, nchannels, fmt)) { |
int m = INT_MAX; |
820 |
memset (hw, 0, audio_state.drv->voice_size_out); |
int nb_live = 0; |
|
return -1; |
|
|
} |
|
821 |
|
|
822 |
LIST_INIT (&hw->sw_head); |
for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) { |
823 |
hw->active = 1; |
if (sw->active || !sw->empty) { |
824 |
hw->samples = hw->bufsize >> hw->info.shift; |
m = audio_MIN (m, sw->total_hw_samples_mixed); |
825 |
hw->clip = |
nb_live += 1; |
826 |
mixeng_clip |
} |
|
[nchannels == 2] |
|
|
[hw->info.sign] |
|
|
[hw->info.swap_endian] |
|
|
[hw->info.bits == 16]; |
|
|
if (audio_pcm_hw_alloc_resources_out (hw)) { |
|
|
audio_pcm_hw_fini_out (hw); |
|
|
return -1; |
|
827 |
} |
} |
828 |
return 0; |
|
829 |
|
*nb_livep = nb_live; |
830 |
|
return m; |
831 |
} |
} |
832 |
|
|
833 |
int audio_pcm_hw_get_live_out2 (HWVoiceOut *hw, int *nb_live) |
int audio_pcm_hw_get_live_out2 (HWVoiceOut *hw, int *nb_live) |
882 |
|
|
883 |
static int audio_pcm_sw_alloc_resources_out (SWVoiceOut *sw) |
static int audio_pcm_sw_alloc_resources_out (SWVoiceOut *sw) |
884 |
{ |
{ |
885 |
sw->buf = qemu_mallocz (sw->hw->samples * sizeof (st_sample_t)); |
sw->buf = audio_calloc (AUDIO_FUNC, sw->hw->samples, sizeof (st_sample_t)); |
886 |
if (!sw->buf) { |
if (!sw->buf) { |
887 |
|
dolog ("Could not allocate buffer for `%s' (%d bytes)\n", |
888 |
|
SW_NAME (sw), sw->hw->samples * sizeof (st_sample_t)); |
889 |
return -1; |
return -1; |
890 |
} |
} |
891 |
|
|
898 |
return 0; |
return 0; |
899 |
} |
} |
900 |
|
|
901 |
static int audio_pcm_sw_init_out (SWVoiceOut *sw, HWVoiceOut *hw, |
static int audio_pcm_sw_init_out ( |
902 |
const char *name, int freq, |
SWVoiceOut *sw, |
903 |
int nchannels, audfmt_e fmt) |
HWVoiceOut *hw, |
904 |
{ |
const char *name, |
905 |
audio_pcm_init_info (&sw->info, freq, nchannels, fmt, |
audsettings_t *as |
906 |
/* None of the cards emulated by QEMU are big-endian |
) |
907 |
hence following shortcut */ |
{ |
908 |
audio_need_to_swap_endian (0)); |
/* None of the cards emulated by QEMU are big-endian |
909 |
|
hence following shortcut */ |
910 |
|
audio_pcm_init_info (&sw->info, as, audio_need_to_swap_endian (0)); |
911 |
sw->hw = hw; |
sw->hw = hw; |
912 |
sw->empty = 1; |
sw->empty = 1; |
913 |
sw->active = 0; |
sw->active = 0; |
916 |
|
|
917 |
sw->conv = |
sw->conv = |
918 |
mixeng_conv |
mixeng_conv |
919 |
[nchannels == 2] |
[sw->info.nchannels == 2] |
920 |
[sw->info.sign] |
[sw->info.sign] |
921 |
[sw->info.swap_endian] |
[sw->info.swap_endian] |
922 |
[sw->info.bits == 16]; |
[sw->info.bits == 16]; |
986 |
|
|
987 |
#ifdef DEBUG_OUT |
#ifdef DEBUG_OUT |
988 |
dolog ( |
dolog ( |
989 |
"%s: write size %d ret %d total sw %d, hw %d\n", |
"%s: write size %d ret %d total sw %d\n", |
990 |
sw->name, |
SW_NAME (sw), |
991 |
size >> sw->info.shift, |
size >> sw->info.shift, |
992 |
ret, |
ret, |
993 |
sw->total_hw_samples_mixed, |
sw->total_hw_samples_mixed |
|
sw->hw->total_samples_played |
|
994 |
); |
); |
995 |
#endif |
#endif |
996 |
|
|
1020 |
} |
} |
1021 |
|
|
1022 |
if (!sw->hw->enabled) { |
if (!sw->hw->enabled) { |
1023 |
dolog ("Writing to disabled voice %s\n", sw->name); |
dolog ("Writing to disabled voice %s\n", SW_NAME (sw)); |
1024 |
return 0; |
return 0; |
1025 |
} |
} |
1026 |
|
|
1038 |
} |
} |
1039 |
|
|
1040 |
if (!sw->hw->enabled) { |
if (!sw->hw->enabled) { |
1041 |
dolog ("Reading from disabled voice %s\n", sw->name); |
dolog ("Reading from disabled voice %s\n", SW_NAME (sw)); |
1042 |
return 0; |
return 0; |
1043 |
} |
} |
1044 |
|
|
1048 |
|
|
1049 |
int AUD_get_buffer_size_out (SWVoiceOut *sw) |
int AUD_get_buffer_size_out (SWVoiceOut *sw) |
1050 |
{ |
{ |
1051 |
return sw->hw->bufsize; |
return sw->hw->samples << sw->hw->info.shift; |
1052 |
} |
} |
1053 |
|
|
1054 |
void AUD_set_active_out (SWVoiceOut *sw, int on) |
void AUD_set_active_out (SWVoiceOut *sw, int on) |
1146 |
|
|
1147 |
ldebug ( |
ldebug ( |
1148 |
"%s: get_avail live %d ret %lld\n", |
"%s: get_avail live %d ret %lld\n", |
1149 |
sw->name, |
SW_NAME (sw), |
1150 |
live, (((int64_t) live << 32) / sw->ratio) << sw->info.shift |
live, (((int64_t) live << 32) / sw->ratio) << sw->info.shift |
1151 |
); |
); |
1152 |
|
|
1165 |
|
|
1166 |
if (audio_bug (AUDIO_FUNC, live < 0 || live > sw->hw->samples)) { |
if (audio_bug (AUDIO_FUNC, live < 0 || live > sw->hw->samples)) { |
1167 |
dolog ("live=%d sw->hw->samples=%d\n", live, sw->hw->samples); |
dolog ("live=%d sw->hw->samples=%d\n", live, sw->hw->samples); |
1168 |
|
return 0; |
1169 |
} |
} |
1170 |
|
|
1171 |
dead = sw->hw->samples - live; |
dead = sw->hw->samples - live; |
1172 |
|
|
1173 |
#ifdef DEBUG_OUT |
#ifdef DEBUG_OUT |
1174 |
dolog ("%s: get_free live %d dead %d ret %lld\n", |
dolog ("%s: get_free live %d dead %d ret %lld\n", |
1175 |
sw->name, |
SW_NAME (sw), |
1176 |
live, dead, (((int64_t) dead << 32) / sw->ratio) << sw->info.shift); |
live, dead, (((int64_t) dead << 32) / sw->ratio) << sw->info.shift); |
1177 |
#endif |
#endif |
1178 |
|
|
1179 |
return (((int64_t) dead << 32) / sw->ratio) << sw->info.shift; |
return (((int64_t) dead << 32) / sw->ratio) << sw->info.shift; |
1180 |
} |
} |
1181 |
|
|
1182 |
static void audio_run_out (void) |
static void audio_run_out (AudioState *s) |
1183 |
{ |
{ |
1184 |
HWVoiceOut *hw = NULL; |
HWVoiceOut *hw = NULL; |
1185 |
SWVoiceOut *sw; |
SWVoiceOut *sw; |
1186 |
|
|
1187 |
while ((hw = audio_pcm_hw_find_any_active_enabled_out (hw))) { |
while ((hw = audio_pcm_hw_find_any_enabled_out (s, hw))) { |
1188 |
int played; |
int played; |
1189 |
int live, free, nb_live; |
int live, free, nb_live, cleanup_required; |
1190 |
|
|
1191 |
live = audio_pcm_hw_get_live_out2 (hw, &nb_live); |
live = audio_pcm_hw_get_live_out2 (hw, &nb_live); |
1192 |
if (!nb_live) { |
if (!nb_live) { |
1193 |
live = 0; |
live = 0; |
1194 |
} |
} |
1195 |
|
|
1196 |
if (audio_bug (AUDIO_FUNC, live < 0 || live > hw->samples)) { |
if (audio_bug (AUDIO_FUNC, live < 0 || live > hw->samples)) { |
1197 |
dolog ("live=%d hw->samples=%d\n", live, hw->samples); |
dolog ("live=%d hw->samples=%d\n", live, hw->samples); |
1198 |
|
continue; |
1199 |
} |
} |
1200 |
|
|
1201 |
if (hw->pending_disable && !nb_live) { |
if (hw->pending_disable && !nb_live) { |
1228 |
} |
} |
1229 |
|
|
1230 |
#ifdef DEBUG_OUT |
#ifdef DEBUG_OUT |
1231 |
dolog ("played = %d total %d\n", played, hw->total_samples_played); |
dolog ("played=%d\n", played); |
1232 |
#endif |
#endif |
1233 |
|
|
1234 |
if (played) { |
if (played) { |
1235 |
hw->ts_helper += played; |
hw->ts_helper += played; |
1236 |
} |
} |
1237 |
|
|
1238 |
|
cleanup_required = 0; |
1239 |
for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) { |
for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) { |
|
again: |
|
1240 |
if (!sw->active && sw->empty) { |
if (!sw->active && sw->empty) { |
1241 |
continue; |
continue; |
1242 |
} |
} |
1251 |
|
|
1252 |
if (!sw->total_hw_samples_mixed) { |
if (!sw->total_hw_samples_mixed) { |
1253 |
sw->empty = 1; |
sw->empty = 1; |
1254 |
|
cleanup_required |= !sw->active && !sw->callback.fn; |
|
if (!sw->active && !sw->callback.fn) { |
|
|
SWVoiceOut *temp = sw->entries.le_next; |
|
|
|
|
|
#ifdef DEBUG_PLIVE |
|
|
dolog ("Finishing with old voice\n"); |
|
|
#endif |
|
|
AUD_close_out (sw); |
|
|
sw = temp; |
|
|
if (sw) { |
|
|
goto again; |
|
|
} |
|
|
else { |
|
|
break; |
|
|
} |
|
|
} |
|
1255 |
} |
} |
1256 |
|
|
1257 |
if (sw->active) { |
if (sw->active) { |
1261 |
} |
} |
1262 |
} |
} |
1263 |
} |
} |
1264 |
|
|
1265 |
|
if (cleanup_required) { |
1266 |
|
restart: |
1267 |
|
for (sw = hw->sw_head.lh_first; sw; sw = sw->entries.le_next) { |
1268 |
|
if (!sw->active && !sw->callback.fn) { |
1269 |
|
#ifdef DEBUG_PLIVE |
1270 |
|
dolog ("Finishing with old voice\n"); |
1271 |
|
#endif |
1272 |
|
audio_close_out (s, sw); |
1273 |
|
goto restart; /* play it safe */ |
1274 |
|
} |
1275 |
|
} |
1276 |
|
} |
1277 |
} |
} |
1278 |
} |
} |
1279 |
|
|
1280 |
static void audio_run_in (void) |
static void audio_run_in (AudioState *s) |
1281 |
{ |
{ |
1282 |
HWVoiceIn *hw = NULL; |
HWVoiceIn *hw = NULL; |
1283 |
|
|
1284 |
while ((hw = audio_pcm_hw_find_any_active_enabled_in (hw))) { |
while ((hw = audio_pcm_hw_find_any_enabled_in (s, hw))) { |
1285 |
SWVoiceIn *sw; |
SWVoiceIn *sw; |
1286 |
int captured, min; |
int captured, min; |
1287 |
|
|
1308 |
|
|
1309 |
static struct audio_option audio_options[] = { |
static struct audio_option audio_options[] = { |
1310 |
/* DAC */ |
/* DAC */ |
1311 |
{"DAC_FIXED_SETTINGS", AUD_OPT_BOOL, &audio_state.fixed_settings_out, |
{"DAC_FIXED_SETTINGS", AUD_OPT_BOOL, &conf.fixed_out.enabled, |
1312 |
"Use fixed settings for host DAC", NULL, 0}, |
"Use fixed settings for host DAC", NULL, 0}, |
1313 |
|
|
1314 |
{"DAC_FIXED_FREQ", AUD_OPT_INT, &audio_state.fixed_freq_out, |
{"DAC_FIXED_FREQ", AUD_OPT_INT, &conf.fixed_out.settings.freq, |
1315 |
"Frequency for fixed host DAC", NULL, 0}, |
"Frequency for fixed host DAC", NULL, 0}, |
1316 |
|
|
1317 |
{"DAC_FIXED_FMT", AUD_OPT_FMT, &audio_state.fixed_fmt_out, |
{"DAC_FIXED_FMT", AUD_OPT_FMT, &conf.fixed_out.settings.fmt, |
1318 |
"Format for fixed host DAC", NULL, 0}, |
"Format for fixed host DAC", NULL, 0}, |
1319 |
|
|
1320 |
{"DAC_FIXED_CHANNELS", AUD_OPT_INT, &audio_state.fixed_channels_out, |
{"DAC_FIXED_CHANNELS", AUD_OPT_INT, &conf.fixed_out.settings.nchannels, |
1321 |
"Number of channels for fixed DAC (1 - mono, 2 - stereo)", NULL, 0}, |
"Number of channels for fixed DAC (1 - mono, 2 - stereo)", NULL, 0}, |
1322 |
|
|
1323 |
{"DAC_VOICES", AUD_OPT_INT, &audio_state.nb_hw_voices_out, |
{"DAC_VOICES", AUD_OPT_INT, &conf.fixed_out.nb_voices, |
1324 |
"Number of voices for DAC", NULL, 0}, |
"Number of voices for DAC", NULL, 0}, |
1325 |
|
|
1326 |
/* ADC */ |
/* ADC */ |
1327 |
{"ADC_FIXED_SETTINGS", AUD_OPT_BOOL, &audio_state.fixed_settings_out, |
{"ADC_FIXED_SETTINGS", AUD_OPT_BOOL, &conf.fixed_in.enabled, |
1328 |
"Use fixed settings for host ADC", NULL, 0}, |
"Use fixed settings for host ADC", NULL, 0}, |
1329 |
|
|
1330 |
{"ADC_FIXED_FREQ", AUD_OPT_INT, &audio_state.fixed_freq_out, |
{"ADC_FIXED_FREQ", AUD_OPT_INT, &conf.fixed_in.settings.freq, |
1331 |
"Frequency for fixed ADC", NULL, 0}, |
"Frequency for fixed host ADC", NULL, 0}, |
1332 |
|
|
1333 |
{"ADC_FIXED_FMT", AUD_OPT_FMT, &audio_state.fixed_fmt_out, |
{"ADC_FIXED_FMT", AUD_OPT_FMT, &conf.fixed_in.settings.fmt, |
1334 |
"Format for fixed ADC", NULL, 0}, |
"Format for fixed host ADC", NULL, 0}, |
1335 |
|
|
1336 |
{"ADC_FIXED_CHANNELS", AUD_OPT_INT, &audio_state.fixed_channels_in, |
{"ADC_FIXED_CHANNELS", AUD_OPT_INT, &conf.fixed_in.settings.nchannels, |
1337 |
"Number of channels for fixed ADC (1 - mono, 2 - stereo)", NULL, 0}, |
"Number of channels for fixed ADC (1 - mono, 2 - stereo)", NULL, 0}, |
1338 |
|
|
1339 |
{"ADC_VOICES", AUD_OPT_INT, &audio_state.nb_hw_voices_out, |
{"ADC_VOICES", AUD_OPT_INT, &conf.fixed_in.nb_voices, |
1340 |
"Number of voices for ADC", NULL, 0}, |
"Number of voices for ADC", NULL, 0}, |
1341 |
|
|
1342 |
/* Misc */ |
/* Misc */ |
1343 |
{"TIMER_PERIOD", AUD_OPT_INT, &audio_state.period.usec, |
{"TIMER_PERIOD", AUD_OPT_INT, &conf.period.hz, |
1344 |
"Timer period in microseconds (0 - try lowest possible)", NULL, 0}, |
"Timer period in HZ (0 - use lowest possible)", NULL, 0}, |
1345 |
|
|
1346 |
{"PLIVE", AUD_OPT_BOOL, &audio_state.plive, |
{"PLIVE", AUD_OPT_BOOL, &conf.plive, |
1347 |
"(undocumented)", NULL, 0}, |
"(undocumented)", NULL, 0}, |
1348 |
|
|
1349 |
{NULL, 0, NULL, NULL, NULL, 0} |
{NULL, 0, NULL, NULL, NULL, 0} |
1434 |
{ |
{ |
1435 |
AudioState *s = opaque; |
AudioState *s = opaque; |
1436 |
|
|
1437 |
audio_run_out (); |
audio_run_out (s); |
1438 |
audio_run_in (); |
audio_run_in (s); |
1439 |
|
|
1440 |
qemu_mod_timer (s->ts, qemu_get_clock (vm_clock) + s->period.ticks); |
qemu_mod_timer (s->ts, qemu_get_clock (vm_clock) + conf.period.ticks); |
1441 |
} |
} |
1442 |
|
|
1443 |
static int audio_driver_init (struct audio_driver *drv) |
static int audio_driver_init (AudioState *s, struct audio_driver *drv) |
1444 |
{ |
{ |
1445 |
if (drv->options) { |
if (drv->options) { |
1446 |
audio_process_options (drv->name, drv->options); |
audio_process_options (drv->name, drv->options); |
1447 |
} |
} |
1448 |
audio_state.opaque = drv->init (); |
s->drv_opaque = drv->init (); |
|
|
|
|
if (audio_state.opaque) { |
|
|
int i; |
|
|
HWVoiceOut *hwo; |
|
|
HWVoiceIn *hwi; |
|
1449 |
|
|
1450 |
if (audio_state.nb_hw_voices_out > drv->max_voices_out) { |
if (s->drv_opaque) { |
1451 |
|
if (s->nb_hw_voices_out > drv->max_voices_out) { |
1452 |
if (!drv->max_voices_out) { |
if (!drv->max_voices_out) { |
1453 |
dolog ("`%s' does not support DAC\n", drv->name); |
dolog ("`%s' does not support DAC\n", drv->name); |
1454 |
} |
} |
1457 |
"`%s' does not support %d multiple DAC voicess\n" |
"`%s' does not support %d multiple DAC voicess\n" |
1458 |
"Resetting to %d\n", |
"Resetting to %d\n", |
1459 |
drv->name, |
drv->name, |
1460 |
audio_state.nb_hw_voices_out, |
s->nb_hw_voices_out, |
1461 |
drv->max_voices_out |
drv->max_voices_out |
1462 |
); |
); |
1463 |
} |
} |
1464 |
audio_state.nb_hw_voices_out = drv->max_voices_out; |
s->nb_hw_voices_out = drv->max_voices_out; |
1465 |
} |
} |
1466 |
|
|
|
LIST_INIT (&hw_head_out); |
|
|
hwo = qemu_mallocz (audio_state.nb_hw_voices_out * drv->voice_size_out); |
|
|
if (!hwo) { |
|
|
dolog ( |
|
|
"Not enough memory for %d `%s' DAC voices (each %d bytes)\n", |
|
|
audio_state.nb_hw_voices_out, |
|
|
drv->name, |
|
|
drv->voice_size_out |
|
|
); |
|
|
drv->fini (audio_state.opaque); |
|
|
return -1; |
|
|
} |
|
|
|
|
|
for (i = 0; i < audio_state.nb_hw_voices_out; ++i) { |
|
|
LIST_INSERT_HEAD (&hw_head_out, hwo, entries); |
|
|
hwo = advance (hwo, drv->voice_size_out); |
|
|
} |
|
1467 |
|
|
1468 |
if (!drv->voice_size_in && drv->max_voices_in) { |
if (!drv->voice_size_in && drv->max_voices_in) { |
1469 |
ldebug ("warning: No ADC voice size defined for `%s'\n", |
ldebug ("warning: No ADC voice size defined for `%s'\n", |
1477 |
} |
} |
1478 |
|
|
1479 |
if (drv->voice_size_in && !drv->max_voices_in) { |
if (drv->voice_size_in && !drv->max_voices_in) { |
1480 |
ldebug ("warning: ADC voice size is %d for ADC less driver `%s'\n", |
ldebug ("warning: `%s' ADC voice size %d, zero voices \n", |
1481 |
drv->voice_size_out, drv->name); |
drv->name, drv->voice_size_out); |
1482 |
} |
} |
1483 |
|
|
1484 |
if (drv->voice_size_out && !drv->max_voices_out) { |
if (drv->voice_size_out && !drv->max_voices_out) { |
1485 |
ldebug ("warning: DAC voice size is %d for DAC less driver `%s'\n", |
ldebug ("warning: `%s' DAC voice size %d, zero voices \n", |
1486 |
drv->voice_size_in, drv->name); |
drv->name, drv->voice_size_in); |
1487 |
} |
} |
1488 |
|
|
1489 |
if (audio_state.nb_hw_voices_in > drv->max_voices_in) { |
if (s->nb_hw_voices_in > drv->max_voices_in) { |
1490 |
if (!drv->max_voices_in) { |
if (!drv->max_voices_in) { |
1491 |
ldebug ("`%s' does not support ADC\n", drv->name); |
ldebug ("`%s' does not support ADC\n", drv->name); |
1492 |
} |
} |
1495 |
"`%s' does not support %d multiple ADC voices\n" |
"`%s' does not support %d multiple ADC voices\n" |
1496 |
"Resetting to %d\n", |
"Resetting to %d\n", |
1497 |
drv->name, |
drv->name, |
1498 |
audio_state.nb_hw_voices_in, |
s->nb_hw_voices_in, |
1499 |
drv->max_voices_in |
drv->max_voices_in |
1500 |
); |
); |
1501 |
} |
} |
1502 |
audio_state.nb_hw_voices_in = drv->max_voices_in; |
s->nb_hw_voices_in = drv->max_voices_in; |
|
} |
|
|
|
|
|
LIST_INIT (&hw_head_in); |
|
|
hwi = qemu_mallocz (audio_state.nb_hw_voices_in * drv->voice_size_in); |
|
|
if (!hwi) { |
|
|
dolog ( |
|
|
"Not enough memory for %d `%s' ADC voices (each %d bytes)\n", |
|
|
audio_state.nb_hw_voices_in, |
|
|
drv->name, |
|
|
drv->voice_size_in |
|
|
); |
|
|
qemu_free (hwo); |
|
|
drv->fini (audio_state.opaque); |
|
|
return -1; |
|
|
} |
|
|
|
|
|
for (i = 0; i < audio_state.nb_hw_voices_in; ++i) { |
|
|
LIST_INSERT_HEAD (&hw_head_in, hwi, entries); |
|
|
hwi = advance (hwi, drv->voice_size_in); |
|
1503 |
} |
} |
1504 |
|
|
1505 |
audio_state.drv = drv; |
LIST_INIT (&s->hw_head_out); |
1506 |
|
LIST_INIT (&s->hw_head_in); |
1507 |
|
s->drv = drv; |
1508 |
return 0; |
return 0; |
1509 |
} |
} |
1510 |
else { |
else { |
1515 |
|
|
1516 |
static void audio_vm_stop_handler (void *opaque, int reason) |
static void audio_vm_stop_handler (void *opaque, int reason) |
1517 |
{ |
{ |
1518 |
|
AudioState *s = opaque; |
1519 |
HWVoiceOut *hwo = NULL; |
HWVoiceOut *hwo = NULL; |
1520 |
HWVoiceIn *hwi = NULL; |
HWVoiceIn *hwi = NULL; |
1521 |
int op = reason ? VOICE_ENABLE : VOICE_DISABLE; |
int op = reason ? VOICE_ENABLE : VOICE_DISABLE; |
1522 |
|
|
1523 |
(void) opaque; |
while ((hwo = audio_pcm_hw_find_any_out (s, hwo))) { |
|
while ((hwo = audio_pcm_hw_find_any_out (hwo))) { |
|
1524 |
if (!hwo->pcm_ops) { |
if (!hwo->pcm_ops) { |
1525 |
continue; |
continue; |
1526 |
} |
} |
1530 |
} |
} |
1531 |
} |
} |
1532 |
|
|
1533 |
while ((hwi = audio_pcm_hw_find_any_in (hwi))) { |
while ((hwi = audio_pcm_hw_find_any_in (s, hwi))) { |
1534 |
if (!hwi->pcm_ops) { |
if (!hwi->pcm_ops) { |
1535 |
continue; |
continue; |
1536 |
} |
} |
1543 |
|
|
1544 |
static void audio_atexit (void) |
static void audio_atexit (void) |
1545 |
{ |
{ |
1546 |
|
AudioState *s = &glob_audio_state; |
1547 |
HWVoiceOut *hwo = NULL; |
HWVoiceOut *hwo = NULL; |
1548 |
HWVoiceIn *hwi = NULL; |
HWVoiceIn *hwi = NULL; |
1549 |
|
|
1550 |
while ((hwo = audio_pcm_hw_find_any_out (hwo))) { |
while ((hwo = audio_pcm_hw_find_any_out (s, hwo))) { |
1551 |
if (!hwo->pcm_ops) { |
if (!hwo->pcm_ops) { |
1552 |
continue; |
continue; |
1553 |
} |
} |
1558 |
hwo->pcm_ops->fini_out (hwo); |
hwo->pcm_ops->fini_out (hwo); |
1559 |
} |
} |
1560 |
|
|
1561 |
while ((hwi = audio_pcm_hw_find_any_in (hwi))) { |
while ((hwi = audio_pcm_hw_find_any_in (s, hwi))) { |
1562 |
if (!hwi->pcm_ops) { |
if (!hwi->pcm_ops) { |
1563 |
continue; |
continue; |
1564 |
} |
} |
1568 |
} |
} |
1569 |
hwi->pcm_ops->fini_in (hwi); |
hwi->pcm_ops->fini_in (hwi); |
1570 |
} |
} |
1571 |
audio_state.drv->fini (audio_state.opaque); |
|
1572 |
|
if (s->drv) { |
1573 |
|
s->drv->fini (s->drv_opaque); |
1574 |
|
} |
1575 |
} |
} |
1576 |
|
|
1577 |
static void audio_save (QEMUFile *f, void *opaque) |
static void audio_save (QEMUFile *f, void *opaque) |
1592 |
return 0; |
return 0; |
1593 |
} |
} |
1594 |
|
|
1595 |
void AUD_init (void) |
void AUD_register_card (AudioState *s, const char *name, QEMUSoundCard *card) |
1596 |
|
{ |
1597 |
|
card->audio = s; |
1598 |
|
card->name = qemu_strdup (name); |
1599 |
|
memset (&card->entries, 0, sizeof (card->entries)); |
1600 |
|
LIST_INSERT_HEAD (&s->card_head, card, entries); |
1601 |
|
} |
1602 |
|
|
1603 |
|
void AUD_remove_card (QEMUSoundCard *card) |
1604 |
|
{ |
1605 |
|
LIST_REMOVE (card, entries); |
1606 |
|
card->audio = NULL; |
1607 |
|
qemu_free (card->name); |
1608 |
|
} |
1609 |
|
|
1610 |
|
AudioState *AUD_init (void) |
1611 |
{ |
{ |
1612 |
size_t i; |
size_t i; |
1613 |
int done = 0; |
int done = 0; |
1614 |
const char *drvname; |
const char *drvname; |
1615 |
AudioState *s = &audio_state; |
AudioState *s = &glob_audio_state; |
1616 |
|
|
1617 |
audio_process_options ("AUDIO", audio_options); |
audio_process_options ("AUDIO", audio_options); |
1618 |
|
|
1619 |
|
s->nb_hw_voices_out = conf.fixed_out.nb_voices; |
1620 |
|
s->nb_hw_voices_in = conf.fixed_in.nb_voices; |
1621 |
|
|
1622 |
if (s->nb_hw_voices_out <= 0) { |
if (s->nb_hw_voices_out <= 0) { |
1623 |
dolog ("Bogus number of DAC voices %d\n", |
dolog ("Bogus number of DAC voices %d\n", |
1624 |
s->nb_hw_voices_out); |
s->nb_hw_voices_out); |
1638 |
|
|
1639 |
s->ts = qemu_new_timer (vm_clock, audio_timer, s); |
s->ts = qemu_new_timer (vm_clock, audio_timer, s); |
1640 |
if (!s->ts) { |
if (!s->ts) { |
1641 |
dolog ("Can not create audio timer\n"); |
dolog ("Could not create audio timer\n"); |
1642 |
return; |
return NULL; |
1643 |
} |
} |
1644 |
|
|
1645 |
if (drvname) { |
if (drvname) { |
1647 |
|
|
1648 |
for (i = 0; i < sizeof (drvtab) / sizeof (drvtab[0]); i++) { |
for (i = 0; i < sizeof (drvtab) / sizeof (drvtab[0]); i++) { |
1649 |
if (!strcmp (drvname, drvtab[i]->name)) { |
if (!strcmp (drvname, drvtab[i]->name)) { |
1650 |
done = !audio_driver_init (drvtab[i]); |
done = !audio_driver_init (s, drvtab[i]); |
1651 |
found = 1; |
found = 1; |
1652 |
break; |
break; |
1653 |
} |
} |
1659 |
} |
} |
1660 |
} |
} |
1661 |
|
|
|
qemu_add_vm_stop_handler (audio_vm_stop_handler, NULL); |
|
|
atexit (audio_atexit); |
|
|
|
|
1662 |
if (!done) { |
if (!done) { |
1663 |
for (i = 0; !done && i < sizeof (drvtab) / sizeof (drvtab[0]); i++) { |
for (i = 0; !done && i < sizeof (drvtab) / sizeof (drvtab[0]); i++) { |
1664 |
if (drvtab[i]->can_be_default) { |
if (drvtab[i]->can_be_default) { |
1665 |
done = !audio_driver_init (drvtab[i]); |
done = !audio_driver_init (s, drvtab[i]); |
1666 |
} |
} |
1667 |
} |
} |
1668 |
} |
} |
1669 |
|
|
|
register_savevm ("audio", 0, 1, audio_save, audio_load, NULL); |
|
1670 |
if (!done) { |
if (!done) { |
1671 |
if (audio_driver_init (&no_audio_driver)) { |
done = !audio_driver_init (s, &no_audio_driver); |
1672 |
dolog ("Can not initialize audio subsystem\n"); |
if (!done) { |
1673 |
|
dolog ("Could not initialize audio subsystem\n"); |
1674 |
} |
} |
1675 |
else { |
else { |
1676 |
dolog ("warning: using timer based audio emulation\n"); |
dolog ("warning: Using timer based audio emulation\n"); |
1677 |
} |
} |
1678 |
} |
} |
1679 |
|
|
1680 |
if (s->period.usec <= 0) { |
if (done) { |
1681 |
if (s->period.usec < 0) { |
if (conf.period.hz <= 0) { |
1682 |
dolog ("warning: timer period is negative - %d treating as zero\n", |
if (conf.period.hz < 0) { |
1683 |
s->period.usec); |
dolog ("warning: Timer period is negative - %d " |
1684 |
|
"treating as zero\n", |
1685 |
|
conf.period.hz); |
1686 |
|
} |
1687 |
|
conf.period.ticks = 1; |
1688 |
|
} |
1689 |
|
else { |
1690 |
|
conf.period.ticks = ticks_per_sec / conf.period.hz; |
1691 |
} |
} |
1692 |
s->period.ticks = 1; |
|
1693 |
|
qemu_add_vm_stop_handler (audio_vm_stop_handler, NULL); |
1694 |
} |
} |
1695 |
else { |
else { |
1696 |
s->period.ticks = (ticks_per_sec * s->period.usec) / 1000000; |
qemu_del_timer (s->ts); |
1697 |
|
return NULL; |
1698 |
} |
} |
1699 |
|
|
1700 |
qemu_mod_timer (s->ts, qemu_get_clock (vm_clock) + s->period.ticks); |
LIST_INIT (&s->card_head); |
1701 |
|
register_savevm ("audio", 0, 1, audio_save, audio_load, s); |
1702 |
|
atexit (audio_atexit); |
1703 |
|
qemu_mod_timer (s->ts, qemu_get_clock (vm_clock) + conf.period.ticks); |
1704 |
|
return s; |
1705 |
} |
} |