mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-02 09:06:41 +07:00
ALSA: hda - Add infrastructure for dynamic stream allocation
Added the infrastructure for dynamic stream allocation on HD-audio. Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai
parent
687cb98e89
commit
176d5335fe
@ -2262,6 +2262,28 @@ static int __devinit set_pcm_default_values(struct hda_codec *codec,
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return 0;
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}
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/*
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* attach a new PCM stream
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*/
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static int __devinit
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snd_hda_attach_pcm(struct hda_codec *codec, struct hda_pcm *pcm)
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{
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struct hda_pcm_stream *info;
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int stream, err;
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if (!pcm->name)
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return -EINVAL;
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for (stream = 0; stream < 2; stream++) {
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info = &pcm->stream[stream];
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if (info->substreams) {
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err = set_pcm_default_values(codec, info);
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if (err < 0)
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return err;
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}
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}
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return codec->bus->ops.attach_pcm(codec, pcm);
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}
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/**
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* snd_hda_build_pcms - build PCM information
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* @bus: the BUS
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@ -2290,10 +2312,24 @@ static int __devinit set_pcm_default_values(struct hda_codec *codec,
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*/
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int __devinit snd_hda_build_pcms(struct hda_bus *bus)
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{
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static const char *dev_name[HDA_PCM_NTYPES] = {
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"Audio", "SPDIF", "HDMI", "Modem"
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};
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/* starting device index for each PCM type */
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static int dev_idx[HDA_PCM_NTYPES] = {
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[HDA_PCM_TYPE_AUDIO] = 0,
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[HDA_PCM_TYPE_SPDIF] = 1,
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[HDA_PCM_TYPE_HDMI] = 3,
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[HDA_PCM_TYPE_MODEM] = 6
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};
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/* normal audio device indices; not linear to keep compatibility */
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static int audio_idx[4] = { 0, 2, 4, 5 };
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struct hda_codec *codec;
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int num_devs[HDA_PCM_NTYPES];
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memset(num_devs, 0, sizeof(num_devs));
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list_for_each_entry(codec, &bus->codec_list, list) {
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unsigned int pcm, s;
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unsigned int pcm;
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int err;
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if (!codec->patch_ops.build_pcms)
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continue;
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@ -2301,15 +2337,37 @@ int __devinit snd_hda_build_pcms(struct hda_bus *bus)
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if (err < 0)
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return err;
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for (pcm = 0; pcm < codec->num_pcms; pcm++) {
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for (s = 0; s < 2; s++) {
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struct hda_pcm_stream *info;
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info = &codec->pcm_info[pcm].stream[s];
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if (!info->substreams)
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struct hda_pcm *cpcm = &codec->pcm_info[pcm];
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int type = cpcm->pcm_type;
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switch (type) {
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case HDA_PCM_TYPE_AUDIO:
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if (num_devs[type] >= ARRAY_SIZE(audio_idx)) {
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snd_printk(KERN_WARNING
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"Too many audio devices\n");
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continue;
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err = set_pcm_default_values(codec, info);
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if (err < 0)
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return err;
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}
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cpcm->device = audio_idx[num_devs[type]];
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break;
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case HDA_PCM_TYPE_SPDIF:
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case HDA_PCM_TYPE_HDMI:
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case HDA_PCM_TYPE_MODEM:
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if (num_devs[type]) {
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snd_printk(KERN_WARNING
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"%s already defined\n",
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dev_name[type]);
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continue;
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}
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cpcm->device = dev_idx[type];
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break;
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default:
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snd_printk(KERN_WARNING
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"Invalid PCM type %d\n", type);
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continue;
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}
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num_devs[type]++;
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err = snd_hda_attach_pcm(codec, cpcm);
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if (err < 0)
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return err;
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}
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}
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return 0;
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@ -542,6 +542,8 @@ struct hda_bus_ops {
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unsigned int (*get_response)(struct hda_codec *codec);
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/* free the private data */
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void (*private_free)(struct hda_bus *);
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/* attach a PCM stream */
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int (*attach_pcm)(struct hda_codec *codec, struct hda_pcm *pcm);
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#ifdef CONFIG_SND_HDA_POWER_SAVE
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/* notify power-up/down from codec to controller */
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void (*pm_notify)(struct hda_codec *codec);
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@ -680,7 +682,8 @@ struct hda_pcm {
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char *name;
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struct hda_pcm_stream stream[2];
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unsigned int pcm_type; /* HDA_PCM_TYPE_XXX */
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int device; /* assigned device number */
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int device; /* device number to assign */
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struct snd_pcm *pcm; /* assigned PCM instance */
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};
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/* codec information */
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@ -1180,6 +1180,7 @@ static int azx_setup_controller(struct azx *chip, struct azx_dev *azx_dev)
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return 0;
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}
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static int azx_attach_pcm_stream(struct hda_codec *codec, struct hda_pcm *cpcm);
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/*
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* Codec initialization
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@ -1212,6 +1213,7 @@ static int __devinit azx_codec_create(struct azx *chip, const char *model,
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bus_temp.pci = chip->pci;
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bus_temp.ops.command = azx_send_cmd;
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bus_temp.ops.get_response = azx_get_response;
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bus_temp.ops.attach_pcm = azx_attach_pcm_stream;
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#ifdef CONFIG_SND_HDA_POWER_SAVE
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bus_temp.ops.pm_notify = azx_power_notify;
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#endif
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@ -1718,111 +1720,58 @@ static struct snd_pcm_ops azx_pcm_ops = {
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static void azx_pcm_free(struct snd_pcm *pcm)
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{
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kfree(pcm->private_data);
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struct azx_pcm *apcm = pcm->private_data;
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if (apcm) {
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apcm->chip->pcm[pcm->device] = NULL;
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kfree(apcm);
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}
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}
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static int __devinit create_codec_pcm(struct azx *chip, struct hda_codec *codec,
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struct hda_pcm *cpcm)
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static int
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azx_attach_pcm_stream(struct hda_codec *codec, struct hda_pcm *cpcm)
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{
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int err;
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struct azx *chip = codec->bus->private_data;
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struct snd_pcm *pcm;
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struct azx_pcm *apcm;
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int pcm_dev = cpcm->device;
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int s, err;
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/* if no substreams are defined for both playback and capture,
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* it's just a placeholder. ignore it.
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*/
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if (!cpcm->stream[0].substreams && !cpcm->stream[1].substreams)
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return 0;
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if (snd_BUG_ON(!cpcm->name))
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if (pcm_dev >= AZX_MAX_PCMS) {
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snd_printk(KERN_ERR SFX "Invalid PCM device number %d\n",
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pcm_dev);
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return -EINVAL;
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err = snd_pcm_new(chip->card, cpcm->name, cpcm->device,
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cpcm->stream[0].substreams,
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cpcm->stream[1].substreams,
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}
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if (chip->pcm[pcm_dev]) {
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snd_printk(KERN_ERR SFX "PCM %d already exists\n", pcm_dev);
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return -EBUSY;
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}
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err = snd_pcm_new(chip->card, cpcm->name, pcm_dev,
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cpcm->stream[SNDRV_PCM_STREAM_PLAYBACK].substreams,
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cpcm->stream[SNDRV_PCM_STREAM_CAPTURE].substreams,
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&pcm);
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if (err < 0)
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return err;
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strcpy(pcm->name, cpcm->name);
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apcm = kmalloc(sizeof(*apcm), GFP_KERNEL);
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apcm = kzalloc(sizeof(*apcm), GFP_KERNEL);
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if (apcm == NULL)
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return -ENOMEM;
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apcm->chip = chip;
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apcm->codec = codec;
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apcm->hinfo[0] = &cpcm->stream[0];
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apcm->hinfo[1] = &cpcm->stream[1];
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pcm->private_data = apcm;
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pcm->private_free = azx_pcm_free;
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if (cpcm->stream[0].substreams)
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snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &azx_pcm_ops);
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if (cpcm->stream[1].substreams)
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snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &azx_pcm_ops);
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if (cpcm->pcm_type == HDA_PCM_TYPE_MODEM)
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pcm->dev_class = SNDRV_PCM_CLASS_MODEM;
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chip->pcm[pcm_dev] = pcm;
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cpcm->pcm = pcm;
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for (s = 0; s < 2; s++) {
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apcm->hinfo[s] = &cpcm->stream[s];
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if (cpcm->stream[s].substreams)
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snd_pcm_set_ops(pcm, s, &azx_pcm_ops);
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}
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/* buffer pre-allocation */
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snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
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snd_dma_pci_data(chip->pci),
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1024 * 64, 32 * 1024 * 1024);
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chip->pcm[cpcm->device] = pcm;
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return 0;
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}
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static int __devinit azx_pcm_create(struct azx *chip)
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{
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static const char *dev_name[HDA_PCM_NTYPES] = {
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"Audio", "SPDIF", "HDMI", "Modem"
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};
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/* starting device index for each PCM type */
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static int dev_idx[HDA_PCM_NTYPES] = {
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[HDA_PCM_TYPE_AUDIO] = 0,
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[HDA_PCM_TYPE_SPDIF] = 1,
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[HDA_PCM_TYPE_HDMI] = 3,
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[HDA_PCM_TYPE_MODEM] = 6
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};
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/* normal audio device indices; not linear to keep compatibility */
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static int audio_idx[4] = { 0, 2, 4, 5 };
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struct hda_codec *codec;
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int c, err;
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int num_devs[HDA_PCM_NTYPES];
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err = snd_hda_build_pcms(chip->bus);
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if (err < 0)
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return err;
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/* create audio PCMs */
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memset(num_devs, 0, sizeof(num_devs));
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list_for_each_entry(codec, &chip->bus->codec_list, list) {
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for (c = 0; c < codec->num_pcms; c++) {
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struct hda_pcm *cpcm = &codec->pcm_info[c];
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int type = cpcm->pcm_type;
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switch (type) {
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case HDA_PCM_TYPE_AUDIO:
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if (num_devs[type] >= ARRAY_SIZE(audio_idx)) {
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snd_printk(KERN_WARNING
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"Too many audio devices\n");
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continue;
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}
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cpcm->device = audio_idx[num_devs[type]];
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break;
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case HDA_PCM_TYPE_SPDIF:
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case HDA_PCM_TYPE_HDMI:
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case HDA_PCM_TYPE_MODEM:
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if (num_devs[type]) {
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snd_printk(KERN_WARNING
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"%s already defined\n",
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dev_name[type]);
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continue;
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}
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cpcm->device = dev_idx[type];
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break;
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default:
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snd_printk(KERN_WARNING
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"Invalid PCM type %d\n", type);
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continue;
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}
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num_devs[type]++;
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err = create_codec_pcm(chip, codec, cpcm);
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if (err < 0)
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return err;
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}
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}
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return 0;
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}
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@ -2324,7 +2273,7 @@ static int __devinit azx_probe(struct pci_dev *pci,
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}
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/* create PCM streams */
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err = azx_pcm_create(chip);
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err = snd_hda_build_pcms(chip->bus);
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if (err < 0) {
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snd_card_free(card);
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return err;
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