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path: root/sound/pci/hda/hda_codec.c
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Diffstat (limited to 'sound/pci/hda/hda_codec.c')
-rw-r--r--sound/pci/hda/hda_codec.c162
1 files changed, 93 insertions, 69 deletions
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 052a898a63b..1cb85b73e19 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -1206,6 +1206,7 @@ int snd_hda_ctl_add(struct hda_codec *codec, struct snd_kcontrol *kctl)
return 0;
}
+#ifdef CONFIG_SND_HDA_RECONFIG
/* Clear all controls assigned to the given codec */
void snd_hda_ctls_clear(struct hda_codec *codec)
{
@@ -1227,9 +1228,12 @@ void snd_hda_codec_reset(struct hda_codec *codec)
snd_hda_ctls_clear(codec);
/* relase PCMs */
for (i = 0; i < codec->num_pcms; i++) {
- if (codec->pcm_info[i].pcm)
+ if (codec->pcm_info[i].pcm) {
snd_device_free(codec->bus->card,
codec->pcm_info[i].pcm);
+ clear_bit(codec->pcm_info[i].device,
+ codec->bus->pcm_dev_bits);
+ }
}
if (codec->patch_ops.free)
codec->patch_ops.free(codec);
@@ -1240,6 +1244,7 @@ void snd_hda_codec_reset(struct hda_codec *codec)
codec->pcm_info = NULL;
codec->preset = NULL;
}
+#endif /* CONFIG_SND_HDA_RECONFIG */
/* create a virtual master control and add slaves */
int snd_hda_add_vmaster(struct hda_codec *codec, char *name,
@@ -2433,10 +2438,58 @@ static int set_pcm_default_values(struct hda_codec *codec,
}
/*
+ * get the empty PCM device number to assign
+ */
+static int get_empty_pcm_device(struct hda_bus *bus, int type)
+{
+ static const char *dev_name[HDA_PCM_NTYPES] = {
+ "Audio", "SPDIF", "HDMI", "Modem"
+ };
+ /* starting device index for each PCM type */
+ static int dev_idx[HDA_PCM_NTYPES] = {
+ [HDA_PCM_TYPE_AUDIO] = 0,
+ [HDA_PCM_TYPE_SPDIF] = 1,
+ [HDA_PCM_TYPE_HDMI] = 3,
+ [HDA_PCM_TYPE_MODEM] = 6
+ };
+ /* normal audio device indices; not linear to keep compatibility */
+ static int audio_idx[4] = { 0, 2, 4, 5 };
+ int i, dev;
+
+ switch (type) {
+ case HDA_PCM_TYPE_AUDIO:
+ for (i = 0; i < ARRAY_SIZE(audio_idx); i++) {
+ dev = audio_idx[i];
+ if (!test_bit(dev, bus->pcm_dev_bits))
+ break;
+ }
+ if (i >= ARRAY_SIZE(audio_idx)) {
+ snd_printk(KERN_WARNING "Too many audio devices\n");
+ return -EAGAIN;
+ }
+ break;
+ case HDA_PCM_TYPE_SPDIF:
+ case HDA_PCM_TYPE_HDMI:
+ case HDA_PCM_TYPE_MODEM:
+ dev = dev_idx[type];
+ if (test_bit(dev, bus->pcm_dev_bits)) {
+ snd_printk(KERN_WARNING "%s already defined\n",
+ dev_name[type]);
+ return -EAGAIN;
+ }
+ break;
+ default:
+ snd_printk(KERN_WARNING "Invalid PCM type %d\n", type);
+ return -EINVAL;
+ }
+ set_bit(dev, bus->pcm_dev_bits);
+ return dev;
+}
+
+/*
* attach a new PCM stream
*/
-static int __devinit
-snd_hda_attach_pcm(struct hda_codec *codec, struct hda_pcm *pcm)
+static int snd_hda_attach_pcm(struct hda_codec *codec, struct hda_pcm *pcm)
{
struct hda_bus *bus = codec->bus;
struct hda_pcm_stream *info;
@@ -2455,6 +2508,39 @@ snd_hda_attach_pcm(struct hda_codec *codec, struct hda_pcm *pcm)
return bus->ops.attach_pcm(bus, codec, pcm);
}
+/* assign all PCMs of the given codec */
+int snd_hda_codec_build_pcms(struct hda_codec *codec)
+{
+ unsigned int pcm;
+ int err;
+
+ if (!codec->num_pcms) {
+ if (!codec->patch_ops.build_pcms)
+ return 0;
+ err = codec->patch_ops.build_pcms(codec);
+ if (err < 0)
+ return err;
+ }
+ for (pcm = 0; pcm < codec->num_pcms; pcm++) {
+ struct hda_pcm *cpcm = &codec->pcm_info[pcm];
+ int dev;
+
+ if (!cpcm->stream[0].substreams && !cpcm->stream[1].substreams)
+ return 0; /* no substreams assigned */
+
+ if (!cpcm->pcm) {
+ dev = get_empty_pcm_device(codec->bus, cpcm->pcm_type);
+ if (dev < 0)
+ return 0;
+ cpcm->device = dev;
+ err = snd_hda_attach_pcm(codec, cpcm);
+ if (err < 0)
+ return err;
+ }
+ }
+ return 0;
+}
+
/**
* snd_hda_build_pcms - build PCM information
* @bus: the BUS
@@ -2481,76 +2567,14 @@ snd_hda_attach_pcm(struct hda_codec *codec, struct hda_pcm *pcm)
*
* This function returns 0 if successfull, or a negative error code.
*/
-int snd_hda_build_pcms(struct hda_bus *bus)
+int __devinit snd_hda_build_pcms(struct hda_bus *bus)
{
- static const char *dev_name[HDA_PCM_NTYPES] = {
- "Audio", "SPDIF", "HDMI", "Modem"
- };
- /* starting device index for each PCM type */
- static int dev_idx[HDA_PCM_NTYPES] = {
- [HDA_PCM_TYPE_AUDIO] = 0,
- [HDA_PCM_TYPE_SPDIF] = 1,
- [HDA_PCM_TYPE_HDMI] = 3,
- [HDA_PCM_TYPE_MODEM] = 6
- };
- /* normal audio device indices; not linear to keep compatibility */
- static int audio_idx[4] = { 0, 2, 4, 5 };
struct hda_codec *codec;
- int num_devs[HDA_PCM_NTYPES];
- memset(num_devs, 0, sizeof(num_devs));
list_for_each_entry(codec, &bus->codec_list, list) {
- unsigned int pcm;
- int err;
- if (!codec->num_pcms) {
- if (!codec->patch_ops.build_pcms)
- continue;
- err = codec->patch_ops.build_pcms(codec);
- if (err < 0)
- return err;
- }
- for (pcm = 0; pcm < codec->num_pcms; pcm++) {
- struct hda_pcm *cpcm = &codec->pcm_info[pcm];
- int type = cpcm->pcm_type;
- int dev;
-
- if (!cpcm->stream[0].substreams &&
- !cpcm->stream[1].substreams)
- continue; /* no substreams assigned */
-
- switch (type) {
- case HDA_PCM_TYPE_AUDIO:
- if (num_devs[type] >= ARRAY_SIZE(audio_idx)) {
- snd_printk(KERN_WARNING
- "Too many audio devices\n");
- continue;
- }
- dev = audio_idx[num_devs[type]];
- break;
- case HDA_PCM_TYPE_SPDIF:
- case HDA_PCM_TYPE_HDMI:
- case HDA_PCM_TYPE_MODEM:
- if (num_devs[type]) {
- snd_printk(KERN_WARNING
- "%s already defined\n",
- dev_name[type]);
- continue;
- }
- dev = dev_idx[type];
- break;
- default:
- snd_printk(KERN_WARNING
- "Invalid PCM type %d\n", type);
- continue;
- }
- num_devs[type]++;
- if (!cpcm->pcm) {
- cpcm->device = dev;
- err = snd_hda_attach_pcm(codec, cpcm);
- if (err < 0)
- return err;
- }
- }
+ int err = snd_hda_codec_build_pcms(codec);
+ if (err < 0)
+ return err;
}
return 0;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-26 08:12:35 +0000