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authorTakashi Iwai <tiwai@suse.de>2013-02-12 17:02:41 +0100
committerTakashi Iwai <tiwai@suse.de>2013-02-12 17:09:19 +0100
commitea9b43addc4d90ca5b029f47f85ca152320a1e8d (patch)
tree58c8b75cd440b48d71acea7cafc9e6e8689f9aa1 /sound/pci/hda
parent9958922a320d6ee9e9f96b30110bc3765b3e8299 (diff)
downloadvexpress-lsk-ea9b43addc4d90ca5b029f47f85ca152320a1e8d.tar.gz
ALSA: hda - Fix broken workaround for HDMI/SPDIF conflicts
The commit [dcda58061: ALSA: hda - Add workaround for conflicting IEC958 controls] introduced a workaround for cards that have both SPDIF and HDMI devices for giving device=1 to SPDIF control elements. It turned out, however, that this workaround doesn't work well - - The workaround checks only conflicts in a single codec, but SPDIF and HDMI are provided by multiple codecs in many cases, and - ALSA mixer abstraction doesn't care about the device number in ctl elements, thus you'll get errors from amixer such as % amixer scontrols -c 0 ALSA lib simple_none.c:1551:(simple_add1) helem (MIXER,'IEC958 Playback Switch',0,1,0) appears twice or more amixer: Mixer hw:0 load error: Invalid argument This patch fixes the previous broken workaround. Instead of changing the device number of SPDIF ctl elements, shift the element indices of such controls up to 16. Also, the conflict check is performed over all codecs found on the bus. HDMI devices will be put to dev=0,index=0 as before. Only the conflicting SPDIF device is moved to a different place. The new place of SPDIF device is supposed by the updated alsa-lib HDA-Intel.conf, respectively. Reported-by: Stephan Raue <stephan@openelec.tv> Reported-by: Anssi Hannula <anssi.hannula@iki.fi> Cc: <stable@vger.kernel.org> [v3.8] Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/hda')
-rw-r--r--sound/pci/hda/hda_codec.c43
-rw-r--r--sound/pci/hda/hda_codec.h3
2 files changed, 23 insertions, 23 deletions
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index e80f8356829..04b57383e8c 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -2332,11 +2332,12 @@ struct snd_kcontrol *snd_hda_find_mixer_ctl(struct hda_codec *codec,
EXPORT_SYMBOL_HDA(snd_hda_find_mixer_ctl);
static int find_empty_mixer_ctl_idx(struct hda_codec *codec, const char *name,
- int dev)
+ int start_idx)
{
- int idx;
- for (idx = 0; idx < 16; idx++) { /* 16 ctlrs should be large enough */
- if (!find_mixer_ctl(codec, name, dev, idx))
+ int i, idx;
+ /* 16 ctlrs should be large enough */
+ for (i = 0, idx = start_idx; i < 16; i++, idx++) {
+ if (!find_mixer_ctl(codec, name, 0, idx))
return idx;
}
return -EBUSY;
@@ -3305,30 +3306,29 @@ int snd_hda_create_dig_out_ctls(struct hda_codec *codec,
int err;
struct snd_kcontrol *kctl;
struct snd_kcontrol_new *dig_mix;
- int idx, dev = 0;
- const int spdif_pcm_dev = 1;
+ int idx = 0;
+ const int spdif_index = 16;
struct hda_spdif_out *spdif;
+ struct hda_bus *bus = codec->bus;
- if (codec->primary_dig_out_type == HDA_PCM_TYPE_HDMI &&
+ if (bus->primary_dig_out_type == HDA_PCM_TYPE_HDMI &&
type == HDA_PCM_TYPE_SPDIF) {
- dev = spdif_pcm_dev;
- } else if (codec->primary_dig_out_type == HDA_PCM_TYPE_SPDIF &&
+ idx = spdif_index;
+ } else if (bus->primary_dig_out_type == HDA_PCM_TYPE_SPDIF &&
type == HDA_PCM_TYPE_HDMI) {
- for (idx = 0; idx < codec->spdif_out.used; idx++) {
- spdif = snd_array_elem(&codec->spdif_out, idx);
- for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) {
- kctl = find_mixer_ctl(codec, dig_mix->name, 0, idx);
- if (!kctl)
- break;
- kctl->id.device = spdif_pcm_dev;
- }
+ /* suppose a single SPDIF device */
+ for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) {
+ kctl = find_mixer_ctl(codec, dig_mix->name, 0, 0);
+ if (!kctl)
+ break;
+ kctl->id.index = spdif_index;
}
- codec->primary_dig_out_type = HDA_PCM_TYPE_HDMI;
+ bus->primary_dig_out_type = HDA_PCM_TYPE_HDMI;
}
- if (!codec->primary_dig_out_type)
- codec->primary_dig_out_type = type;
+ if (!bus->primary_dig_out_type)
+ bus->primary_dig_out_type = type;
- idx = find_empty_mixer_ctl_idx(codec, "IEC958 Playback Switch", dev);
+ idx = find_empty_mixer_ctl_idx(codec, "IEC958 Playback Switch", idx);
if (idx < 0) {
printk(KERN_ERR "hda_codec: too many IEC958 outputs\n");
return -EBUSY;
@@ -3338,7 +3338,6 @@ int snd_hda_create_dig_out_ctls(struct hda_codec *codec,
kctl = snd_ctl_new1(dig_mix, codec);
if (!kctl)
return -ENOMEM;
- kctl->id.device = dev;
kctl->id.index = idx;
kctl->private_value = codec->spdif_out.used - 1;
err = snd_hda_ctl_add(codec, associated_nid, kctl);
diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h
index e8c9442d27a..23ca1722aff 100644
--- a/sound/pci/hda/hda_codec.h
+++ b/sound/pci/hda/hda_codec.h
@@ -679,6 +679,8 @@ struct hda_bus {
unsigned int response_reset:1; /* controller was reset */
unsigned int in_reset:1; /* during reset operation */
unsigned int power_keep_link_on:1; /* don't power off HDA link */
+
+ int primary_dig_out_type; /* primary digital out PCM type */
};
/*
@@ -846,7 +848,6 @@ struct hda_codec {
struct mutex hash_mutex;
struct snd_array spdif_out;
unsigned int spdif_in_enable; /* SPDIF input enable? */
- int primary_dig_out_type; /* primary digital out PCM type */
const hda_nid_t *slave_dig_outs; /* optional digital out slave widgets */
struct snd_array init_pins; /* initial (BIOS) pin configurations */
struct snd_array driver_pins; /* pin configs set by codec parser */