diff options
author | Jaroslav Kysela <perex@perex.cz> | 2010-02-02 16:48:51 (GMT) |
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committer | Jaroslav Kysela <perex@perex.cz> | 2010-02-02 16:50:57 (GMT) |
commit | d5e1ca05f758fec2845a97fd7aa1eeca91c51a21 (patch) | |
tree | 8964232b71764ef3833976a9e9308b9539016171 /sound | |
parent | 6123637fafbf445cc9ce5774dc9516da0b2daa88 (diff) | |
download | linux-d5e1ca05f758fec2845a97fd7aa1eeca91c51a21.tar.xz |
ALSA: dummy driver - add model parameter
This is a cleanup for the dummy driver. The model kernel module parameter
is introduced to select the soundcard emulation.
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Diffstat (limited to 'sound')
-rw-r--r-- | sound/drivers/dummy.c | 290 |
1 files changed, 180 insertions, 110 deletions
diff --git a/sound/drivers/dummy.c b/sound/drivers/dummy.c index 252e04c..7f41990 100644 --- a/sound/drivers/dummy.c +++ b/sound/drivers/dummy.c @@ -45,109 +45,23 @@ MODULE_SUPPORTED_DEVICE("{{ALSA,Dummy soundcard}}"); #define MAX_PCM_SUBSTREAMS 128 #define MAX_MIDI_DEVICES 2 -#if 0 /* emu10k1 emulation */ -#define MAX_BUFFER_SIZE (128 * 1024) -static int emu10k1_playback_constraints(struct snd_pcm_runtime *runtime) -{ - int err; - err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); - if (err < 0) - return err; - err = snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 256, UINT_MAX); - if (err < 0) - return err; - return 0; -} -#define add_playback_constraints emu10k1_playback_constraints -#endif - -#if 0 /* RME9652 emulation */ -#define MAX_BUFFER_SIZE (26 * 64 * 1024) -#define USE_FORMATS SNDRV_PCM_FMTBIT_S32_LE -#define USE_CHANNELS_MIN 26 -#define USE_CHANNELS_MAX 26 -#define USE_PERIODS_MIN 2 -#define USE_PERIODS_MAX 2 -#endif - -#if 0 /* ICE1712 emulation */ -#define MAX_BUFFER_SIZE (256 * 1024) -#define USE_FORMATS SNDRV_PCM_FMTBIT_S32_LE -#define USE_CHANNELS_MIN 10 -#define USE_CHANNELS_MAX 10 -#define USE_PERIODS_MIN 1 -#define USE_PERIODS_MAX 1024 -#endif - -#if 0 /* UDA1341 emulation */ -#define MAX_BUFFER_SIZE (16380) -#define USE_FORMATS SNDRV_PCM_FMTBIT_S16_LE -#define USE_CHANNELS_MIN 2 -#define USE_CHANNELS_MAX 2 -#define USE_PERIODS_MIN 2 -#define USE_PERIODS_MAX 255 -#endif - -#if 0 /* simple AC97 bridge (intel8x0) with 48kHz AC97 only codec */ -#define USE_FORMATS SNDRV_PCM_FMTBIT_S16_LE -#define USE_CHANNELS_MIN 2 -#define USE_CHANNELS_MAX 2 -#define USE_RATE SNDRV_PCM_RATE_48000 -#define USE_RATE_MIN 48000 -#define USE_RATE_MAX 48000 -#endif - -#if 0 /* CA0106 */ -#define USE_FORMATS SNDRV_PCM_FMTBIT_S16_LE -#define USE_CHANNELS_MIN 2 -#define USE_CHANNELS_MAX 2 -#define USE_RATE (SNDRV_PCM_RATE_48000|SNDRV_PCM_RATE_96000|SNDRV_PCM_RATE_192000) -#define USE_RATE_MIN 48000 -#define USE_RATE_MAX 192000 -#define MAX_BUFFER_SIZE ((65536-64)*8) -#define MAX_PERIOD_SIZE (65536-64) -#define USE_PERIODS_MIN 2 -#define USE_PERIODS_MAX 8 -#endif - - /* defaults */ -#ifndef MAX_BUFFER_SIZE #define MAX_BUFFER_SIZE (64*1024) -#endif -#ifndef MAX_PERIOD_SIZE +#define MIN_PERIOD_SIZE 64 #define MAX_PERIOD_SIZE MAX_BUFFER_SIZE -#endif -#ifndef USE_FORMATS #define USE_FORMATS (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE) -#endif -#ifndef USE_RATE #define USE_RATE SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000 #define USE_RATE_MIN 5500 #define USE_RATE_MAX 48000 -#endif -#ifndef USE_CHANNELS_MIN #define USE_CHANNELS_MIN 1 -#endif -#ifndef USE_CHANNELS_MAX #define USE_CHANNELS_MAX 2 -#endif -#ifndef USE_PERIODS_MIN #define USE_PERIODS_MIN 1 -#endif -#ifndef USE_PERIODS_MAX #define USE_PERIODS_MAX 1024 -#endif -#ifndef add_playback_constraints -#define add_playback_constraints(x) 0 -#endif -#ifndef add_capture_constraints -#define add_capture_constraints(x) 0 -#endif static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ static int enable[SNDRV_CARDS] = {1, [1 ... (SNDRV_CARDS - 1)] = 0}; +static char *model[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = NULL}; static int pcm_devs[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1}; static int pcm_substreams[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 8}; //static int midi_devs[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 2}; @@ -162,6 +76,8 @@ module_param_array(id, charp, NULL, 0444); MODULE_PARM_DESC(id, "ID string for dummy soundcard."); module_param_array(enable, bool, NULL, 0444); MODULE_PARM_DESC(enable, "Enable this dummy soundcard."); +module_param_array(model, charp, NULL, 0444); +MODULE_PARM_DESC(model, "Soundcard model."); module_param_array(pcm_devs, int, NULL, 0444); MODULE_PARM_DESC(pcm_devs, "PCM devices # (0-4) for dummy driver."); module_param_array(pcm_substreams, int, NULL, 0444); @@ -193,9 +109,28 @@ struct dummy_timer_ops { snd_pcm_uframes_t (*pointer)(struct snd_pcm_substream *); }; +struct dummy_model { + const char *name; + int (*playback_constraints)(struct snd_pcm_runtime *runtime); + int (*capture_constraints)(struct snd_pcm_runtime *runtime); + u64 formats; + size_t buffer_bytes_max; + size_t period_bytes_min; + size_t period_bytes_max; + unsigned int periods_min; + unsigned int periods_max; + unsigned int rates; + unsigned int rate_min; + unsigned int rate_max; + unsigned int channels_min; + unsigned int channels_max; +}; + struct snd_dummy { struct snd_card *card; + struct dummy_model *model; struct snd_pcm *pcm; + struct snd_pcm_hardware pcm_hw; spinlock_t mixer_lock; int mixer_volume[MIXER_ADDR_LAST+1][2]; int capture_source[MIXER_ADDR_LAST+1][2]; @@ -203,6 +138,92 @@ struct snd_dummy { }; /* + * card models + */ + +static int emu10k1_playback_constraints(struct snd_pcm_runtime *runtime) +{ + int err; + err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); + if (err < 0) + return err; + err = snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 256, UINT_MAX); + if (err < 0) + return err; + return 0; +} + +struct dummy_model model_emu10k1 = { + .name = "emu10k1", + .playback_constraints = emu10k1_playback_constraints, + .buffer_bytes_max = 128 * 1024, +}; + +struct dummy_model model_rme9652 = { + .name = "rme9652", + .buffer_bytes_max = 26 * 64 * 1024, + .formats = SNDRV_PCM_FMTBIT_S32_LE, + .channels_min = 26, + .channels_max = 26, + .periods_min = 2, + .periods_max = 2, +}; + +struct dummy_model model_ice1712 = { + .name = "ice1712", + .buffer_bytes_max = 256 * 1024, + .formats = SNDRV_PCM_FMTBIT_S32_LE, + .channels_min = 10, + .channels_max = 10, + .periods_min = 1, + .periods_max = 1024, +}; + +struct dummy_model model_uda1341 = { + .name = "uda1341", + .buffer_bytes_max = 16380, + .formats = SNDRV_PCM_FMTBIT_S16_LE, + .channels_min = 2, + .channels_max = 2, + .periods_min = 2, + .periods_max = 255, +}; + +struct dummy_model model_ac97 = { + .name = "ac97", + .formats = SNDRV_PCM_FMTBIT_S16_LE, + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_48000, + .rate_min = 48000, + .rate_max = 48000, +}; + +struct dummy_model model_ca0106 = { + .name = "ca0106", + .formats = SNDRV_PCM_FMTBIT_S16_LE, + .buffer_bytes_max = ((65536-64)*8), + .period_bytes_max = (65536-64), + .periods_min = 2, + .periods_max = 8, + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_48000|SNDRV_PCM_RATE_96000|SNDRV_PCM_RATE_192000, + .rate_min = 48000, + .rate_max = 192000, +}; + +struct dummy_model *dummy_models[] = { + &model_emu10k1, + &model_rme9652, + &model_ice1712, + &model_uda1341, + &model_ac97, + &model_ca0106, + NULL +}; + +/* * system timer interface */ @@ -509,7 +530,7 @@ static struct snd_pcm_hardware dummy_pcm_hardware = { .channels_min = USE_CHANNELS_MIN, .channels_max = USE_CHANNELS_MAX, .buffer_bytes_max = MAX_BUFFER_SIZE, - .period_bytes_min = 64, + .period_bytes_min = MIN_PERIOD_SIZE, .period_bytes_max = MAX_PERIOD_SIZE, .periods_min = USE_PERIODS_MIN, .periods_max = USE_PERIODS_MAX, @@ -538,6 +559,7 @@ static int dummy_pcm_hw_free(struct snd_pcm_substream *substream) static int dummy_pcm_open(struct snd_pcm_substream *substream) { struct snd_dummy *dummy = snd_pcm_substream_chip(substream); + struct dummy_model *model = dummy->model; struct snd_pcm_runtime *runtime = substream->runtime; int err; @@ -551,7 +573,7 @@ static int dummy_pcm_open(struct snd_pcm_substream *substream) if (err < 0) return err; - runtime->hw = dummy_pcm_hardware; + runtime->hw = dummy->pcm_hw; if (substream->pcm->device & 1) { runtime->hw.info &= ~SNDRV_PCM_INFO_INTERLEAVED; runtime->hw.info |= SNDRV_PCM_INFO_NONINTERLEAVED; @@ -560,10 +582,16 @@ static int dummy_pcm_open(struct snd_pcm_substream *substream) runtime->hw.info &= ~(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID); - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) - err = add_playback_constraints(substream->runtime); - else - err = add_capture_constraints(substream->runtime); + if (model == NULL) + return 0; + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + if (model->playback_constraints) + err = model->playback_constraints(substream->runtime); + } else { + if (model->capture_constraints) + err = model->capture_constraints(substream->runtime); + } if (err < 0) { dummy->timer_ops->free(substream); return err; @@ -823,17 +851,19 @@ static int __devinit snd_card_dummy_new_mixer(struct snd_dummy *dummy) /* * proc interface */ -static void print_formats(struct snd_info_buffer *buffer) +static void print_formats(struct snd_dummy *dummy, + struct snd_info_buffer *buffer) { int i; for (i = 0; i < SNDRV_PCM_FORMAT_LAST; i++) { - if (dummy_pcm_hardware.formats & (1ULL << i)) + if (dummy->pcm_hw.formats & (1ULL << i)) snd_iprintf(buffer, " %s", snd_pcm_format_name(i)); } } -static void print_rates(struct snd_info_buffer *buffer) +static void print_rates(struct snd_dummy *dummy, + struct snd_info_buffer *buffer) { static int rates[] = { 5512, 8000, 11025, 16000, 22050, 32000, 44100, 48000, @@ -841,19 +871,19 @@ static void print_rates(struct snd_info_buffer *buffer) }; int i; - if (dummy_pcm_hardware.rates & SNDRV_PCM_RATE_CONTINUOUS) + if (dummy->pcm_hw.rates & SNDRV_PCM_RATE_CONTINUOUS) snd_iprintf(buffer, " continuous"); - if (dummy_pcm_hardware.rates & SNDRV_PCM_RATE_KNOT) + if (dummy->pcm_hw.rates & SNDRV_PCM_RATE_KNOT) snd_iprintf(buffer, " knot"); for (i = 0; i < ARRAY_SIZE(rates); i++) - if (dummy_pcm_hardware.rates & (1 << i)) + if (dummy->pcm_hw.rates & (1 << i)) snd_iprintf(buffer, " %d", rates[i]); } -#define get_dummy_int_ptr(ofs) \ - (unsigned int *)((char *)&dummy_pcm_hardware + (ofs)) -#define get_dummy_ll_ptr(ofs) \ - (unsigned long long *)((char *)&dummy_pcm_hardware + (ofs)) +#define get_dummy_int_ptr(dummy, ofs) \ + (unsigned int *)((char *)&((dummy)->pcm_hw) + (ofs)) +#define get_dummy_ll_ptr(dummy, ofs) \ + (unsigned long long *)((char *)&((dummy)->pcm_hw) + (ofs)) struct dummy_hw_field { const char *name; @@ -884,20 +914,21 @@ static struct dummy_hw_field fields[] = { static void dummy_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) { + struct snd_dummy *dummy = entry->private_data; int i; for (i = 0; i < ARRAY_SIZE(fields); i++) { snd_iprintf(buffer, "%s ", fields[i].name); if (fields[i].size == sizeof(int)) snd_iprintf(buffer, fields[i].format, - *get_dummy_int_ptr(fields[i].offset)); + *get_dummy_int_ptr(dummy, fields[i].offset)); else snd_iprintf(buffer, fields[i].format, - *get_dummy_ll_ptr(fields[i].offset)); + *get_dummy_ll_ptr(dummy, fields[i].offset)); if (!strcmp(fields[i].name, "formats")) - print_formats(buffer); + print_formats(dummy, buffer); else if (!strcmp(fields[i].name, "rates")) - print_rates(buffer); + print_rates(dummy, buffer); snd_iprintf(buffer, "\n"); } } @@ -905,6 +936,7 @@ static void dummy_proc_read(struct snd_info_entry *entry, static void dummy_proc_write(struct snd_info_entry *entry, struct snd_info_buffer *buffer) { + struct snd_dummy *dummy = entry->private_data; char line[64]; while (!snd_info_get_line(buffer, line, sizeof(line))) { @@ -924,9 +956,9 @@ static void dummy_proc_write(struct snd_info_entry *entry, if (strict_strtoull(item, 0, &val)) continue; if (fields[i].size == sizeof(int)) - *get_dummy_int_ptr(fields[i].offset) = val; + *get_dummy_int_ptr(dummy, fields[i].offset) = val; else - *get_dummy_ll_ptr(fields[i].offset) = val; + *get_dummy_ll_ptr(dummy, fields[i].offset) = val; } } @@ -938,6 +970,7 @@ static void __devinit dummy_proc_init(struct snd_dummy *chip) snd_info_set_text_ops(entry, chip, dummy_proc_read); entry->c.text.write = dummy_proc_write; entry->mode |= S_IWUSR; + entry->private_data = chip; } } #else @@ -948,6 +981,7 @@ static int __devinit snd_dummy_probe(struct platform_device *devptr) { struct snd_card *card; struct snd_dummy *dummy; + struct dummy_model *m = NULL, **mdl; int idx, err; int dev = devptr->id; @@ -957,6 +991,15 @@ static int __devinit snd_dummy_probe(struct platform_device *devptr) return err; dummy = card->private_data; dummy->card = card; + for (mdl = dummy_models; *mdl && model[dev]; mdl++) { + if (strcmp(model[dev], (*mdl)->name) == 0) { + printk(KERN_INFO + "snd-dummy: Using model '%s' for card %i\n", + (*mdl)->name, card->number); + m = dummy->model = *mdl; + break; + } + } for (idx = 0; idx < MAX_PCM_DEVICES && idx < pcm_devs[dev]; idx++) { if (pcm_substreams[dev] < 1) pcm_substreams[dev] = 1; @@ -966,6 +1009,33 @@ static int __devinit snd_dummy_probe(struct platform_device *devptr) if (err < 0) goto __nodev; } + + dummy->pcm_hw = dummy_pcm_hardware; + if (m) { + if (m->formats) + dummy->pcm_hw.formats = m->formats; + if (m->buffer_bytes_max) + dummy->pcm_hw.buffer_bytes_max = m->buffer_bytes_max; + if (m->period_bytes_min) + dummy->pcm_hw.period_bytes_min = m->period_bytes_min; + if (m->period_bytes_max) + dummy->pcm_hw.period_bytes_max = m->period_bytes_max; + if (m->periods_min) + dummy->pcm_hw.periods_min = m->periods_min; + if (m->periods_max) + dummy->pcm_hw.periods_max = m->periods_max; + if (m->rates) + dummy->pcm_hw.rates = m->rates; + if (m->rate_min) + dummy->pcm_hw.rate_min = m->rate_min; + if (m->rate_max) + dummy->pcm_hw.rate_max = m->rate_max; + if (m->channels_min) + dummy->pcm_hw.channels_min = m->channels_min; + if (m->channels_max) + dummy->pcm_hw.channels_max = m->channels_max; + } + err = snd_card_dummy_new_mixer(dummy); if (err < 0) goto __nodev; |