diff options
Diffstat (limited to 'sound/pci/hda/patch_hdmi.c')
| -rw-r--r-- | sound/pci/hda/patch_hdmi.c | 308 |
1 files changed, 303 insertions, 5 deletions
diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c index 333d533..4a5d24f 100644 --- a/sound/pci/hda/patch_hdmi.c +++ b/sound/pci/hda/patch_hdmi.c @@ -35,6 +35,7 @@ #include <sound/core.h> #include <sound/jack.h> #include <sound/asoundef.h> +#include <sound/tlv.h> #include "hda_codec.h" #include "hda_local.h" #include "hda_jack.h" @@ -73,6 +74,8 @@ struct hdmi_spec_per_pin { struct delayed_work work; int repoll_count; bool non_pcm; + bool chmap_set; /* channel-map override by ALSA API? */ + unsigned char chmap[8]; /* ALSA API channel-map */ }; struct hdmi_spec { @@ -82,6 +85,7 @@ struct hdmi_spec { int num_pins; struct hdmi_spec_per_pin pins[MAX_HDMI_PINS]; struct hda_pcm pcm_rec[MAX_HDMI_PINS]; + unsigned int channels_max; /* max over all cvts */ /* * Non-generic ATI/NVIDIA specific @@ -548,7 +552,7 @@ static void hdmi_debug_channel_mapping(struct hda_codec *codec, } -static void hdmi_setup_channel_mapping(struct hda_codec *codec, +static void hdmi_std_setup_channel_mapping(struct hda_codec *codec, hda_nid_t pin_nid, bool non_pcm, int ca) @@ -588,6 +592,136 @@ static void hdmi_setup_channel_mapping(struct hda_codec *codec, hdmi_debug_channel_mapping(codec, pin_nid); } +struct channel_map_table { + unsigned char map; /* ALSA API channel map position */ + unsigned char cea_slot; /* CEA slot value */ + int spk_mask; /* speaker position bit mask */ +}; + +static struct channel_map_table map_tables[] = { + { SNDRV_CHMAP_FL, 0x00, FL }, + { SNDRV_CHMAP_FR, 0x01, FR }, + { SNDRV_CHMAP_RL, 0x04, RL }, + { SNDRV_CHMAP_RR, 0x05, RR }, + { SNDRV_CHMAP_LFE, 0x02, LFE }, + { SNDRV_CHMAP_FC, 0x03, FC }, + { SNDRV_CHMAP_RLC, 0x06, RLC }, + { SNDRV_CHMAP_RRC, 0x07, RRC }, + {} /* terminator */ +}; + +/* from ALSA API channel position to speaker bit mask */ +static int to_spk_mask(unsigned char c) +{ + struct channel_map_table *t = map_tables; + for (; t->map; t++) { + if (t->map == c) + return t->spk_mask; + } + return 0; +} + +/* from ALSA API channel position to CEA slot */ +static int to_cea_slot(unsigned char c) +{ + struct channel_map_table *t = map_tables; + for (; t->map; t++) { + if (t->map == c) + return t->cea_slot; + } + return 0x0f; +} + +/* from CEA slot to ALSA API channel position */ +static int from_cea_slot(unsigned char c) +{ + struct channel_map_table *t = map_tables; + for (; t->map; t++) { + if (t->cea_slot == c) + return t->map; + } + return 0; +} + +/* from speaker bit mask to ALSA API channel position */ +static int spk_to_chmap(int spk) +{ + struct channel_map_table *t = map_tables; + for (; t->map; t++) { + if (t->spk_mask == spk) + return t->map; + } + return 0; +} + +/* get the CA index corresponding to the given ALSA API channel map */ +static int hdmi_manual_channel_allocation(int chs, unsigned char *map) +{ + int i, spks = 0, spk_mask = 0; + + for (i = 0; i < chs; i++) { + int mask = to_spk_mask(map[i]); + if (mask) { + spk_mask |= mask; + spks++; + } + } + + for (i = 0; i < ARRAY_SIZE(channel_allocations); i++) { + if ((chs == channel_allocations[i].channels || + spks == channel_allocations[i].channels) && + (spk_mask & channel_allocations[i].spk_mask) == + channel_allocations[i].spk_mask) + return channel_allocations[i].ca_index; + } + return -1; +} + +/* set up the channel slots for the given ALSA API channel map */ +static int hdmi_manual_setup_channel_mapping(struct hda_codec *codec, + hda_nid_t pin_nid, + int chs, unsigned char *map) +{ + int i; + for (i = 0; i < 8; i++) { + int val, err; + if (i < chs) + val = to_cea_slot(map[i]); + else + val = 0xf; + val |= (i << 4); + err = snd_hda_codec_write(codec, pin_nid, 0, + AC_VERB_SET_HDMI_CHAN_SLOT, val); + if (err) + return -EINVAL; + } + return 0; +} + +/* store ALSA API channel map from the current default map */ +static void hdmi_setup_fake_chmap(unsigned char *map, int ca) +{ + int i; + for (i = 0; i < 8; i++) { + if (i < channel_allocations[ca].channels) + map[i] = from_cea_slot((hdmi_channel_mapping[ca][i] >> 4) & 0x0f); + else + map[i] = 0; + } +} + +static void hdmi_setup_channel_mapping(struct hda_codec *codec, + hda_nid_t pin_nid, bool non_pcm, int ca, + int channels, unsigned char *map) +{ + if (!non_pcm && map) { + hdmi_manual_setup_channel_mapping(codec, pin_nid, + channels, map); + } else { + hdmi_std_setup_channel_mapping(codec, pin_nid, non_pcm, ca); + hdmi_setup_fake_chmap(map, ca); + } +} /* * Audio InfoFrame routines @@ -726,7 +860,12 @@ static void hdmi_setup_audio_infoframe(struct hda_codec *codec, int pin_idx, if (!eld->monitor_present) return; - ca = hdmi_channel_allocation(eld, channels); + if (!non_pcm && per_pin->chmap_set) + ca = hdmi_manual_channel_allocation(channels, per_pin->chmap); + else + ca = hdmi_channel_allocation(eld, channels); + if (ca < 0) + ca = 0; memset(&ai, 0, sizeof(ai)); if (eld->conn_type == 0) { /* HDMI */ @@ -763,7 +902,8 @@ static void hdmi_setup_audio_infoframe(struct hda_codec *codec, int pin_idx, "pin=%d channels=%d\n", pin_nid, channels); - hdmi_setup_channel_mapping(codec, pin_nid, non_pcm, ca); + hdmi_setup_channel_mapping(codec, pin_nid, non_pcm, ca, + channels, per_pin->chmap); hdmi_stop_infoframe_trans(codec, pin_nid); hdmi_fill_audio_infoframe(codec, pin_nid, ai.bytes, sizeof(ai)); @@ -772,7 +912,8 @@ static void hdmi_setup_audio_infoframe(struct hda_codec *codec, int pin_idx, /* For non-pcm audio switch, setup new channel mapping * accordingly */ if (per_pin->non_pcm != non_pcm) - hdmi_setup_channel_mapping(codec, pin_nid, non_pcm, ca); + hdmi_setup_channel_mapping(codec, pin_nid, non_pcm, ca, + channels, per_pin->chmap); } per_pin->non_pcm = non_pcm; @@ -1098,8 +1239,11 @@ static int hdmi_add_cvt(struct hda_codec *codec, hda_nid_t cvt_nid) per_cvt->cvt_nid = cvt_nid; per_cvt->channels_min = 2; - if (chans <= 16) + if (chans <= 16) { per_cvt->channels_max = chans; + if (chans > spec->channels_max) + spec->channels_max = chans; + } err = snd_hda_query_supported_pcm(codec, cvt_nid, &per_cvt->rates, @@ -1250,7 +1394,10 @@ static int hdmi_pcm_close(struct hda_pcm_stream *hinfo, AC_VERB_SET_PIN_WIDGET_CONTROL, pinctl & ~PIN_OUT); snd_hda_spdif_ctls_unassign(codec, pin_idx); + per_pin->chmap_set = false; + memset(per_pin->chmap, 0, sizeof(per_pin->chmap)); } + return 0; } @@ -1261,6 +1408,135 @@ static const struct hda_pcm_ops generic_ops = { .cleanup = generic_hdmi_playback_pcm_cleanup, }; +/* + * ALSA API channel-map control callbacks + */ +static int hdmi_chmap_ctl_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol); + struct hda_codec *codec = info->private_data; + struct hdmi_spec *spec = codec->spec; + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = spec->channels_max; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = SNDRV_CHMAP_LAST; + return 0; +} + +static int hdmi_chmap_ctl_tlv(struct snd_kcontrol *kcontrol, int op_flag, + unsigned int size, unsigned int __user *tlv) +{ + struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol); + struct hda_codec *codec = info->private_data; + struct hdmi_spec *spec = codec->spec; + const unsigned int valid_mask = + FL | FR | RL | RR | LFE | FC | RLC | RRC; + unsigned int __user *dst; + int chs, count = 0; + + if (size < 8) + return -ENOMEM; + if (put_user(SNDRV_CTL_TLVT_CONTAINER, tlv)) + return -EFAULT; + size -= 8; + dst = tlv + 2; + for (chs = 2; chs <= spec->channels_max; chs += 2) { + int i, c; + struct cea_channel_speaker_allocation *cap; + cap = channel_allocations; + for (i = 0; i < ARRAY_SIZE(channel_allocations); i++, cap++) { + int chs_bytes = chs * 4; + if (cap->channels != chs) + continue; + if (cap->spk_mask & ~valid_mask) + continue; + if (size < 8) + return -ENOMEM; + if (put_user(SNDRV_CTL_TLVT_CHMAP_VAR, dst) || + put_user(chs_bytes, dst + 1)) + return -EFAULT; + dst += 2; + size -= 8; + count += 8; + if (size < chs_bytes) + return -ENOMEM; + size -= chs_bytes; + count += chs_bytes; + for (c = 7; c >= 0; c--) { + int spk = cap->speakers[c]; + if (!spk) + continue; + if (put_user(spk_to_chmap(spk), dst)) + return -EFAULT; + dst++; + } + } + } + if (put_user(count, tlv + 1)) + return -EFAULT; + return 0; +} + +static int hdmi_chmap_ctl_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol); + struct hda_codec *codec = info->private_data; + struct hdmi_spec *spec = codec->spec; + int pin_idx = kcontrol->private_value; + struct hdmi_spec_per_pin *per_pin = &spec->pins[pin_idx]; + int i; + + for (i = 0; i < ARRAY_SIZE(per_pin->chmap); i++) + ucontrol->value.integer.value[i] = per_pin->chmap[i]; + return 0; +} + +static int hdmi_chmap_ctl_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol); + struct hda_codec *codec = info->private_data; + struct hdmi_spec *spec = codec->spec; + int pin_idx = kcontrol->private_value; + struct hdmi_spec_per_pin *per_pin = &spec->pins[pin_idx]; + unsigned int ctl_idx; + struct snd_pcm_substream *substream; + unsigned char chmap[8]; + int i, ca, prepared = 0; + + ctl_idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id); + substream = snd_pcm_chmap_substream(info, ctl_idx); + if (!substream || !substream->runtime) + return -EBADFD; + switch (substream->runtime->status->state) { + case SNDRV_PCM_STATE_OPEN: + case SNDRV_PCM_STATE_SETUP: + break; + case SNDRV_PCM_STATE_PREPARED: + prepared = 1; + break; + default: + return -EBUSY; + } + memset(chmap, 0, sizeof(chmap)); + for (i = 0; i < ARRAY_SIZE(chmap); i++) + chmap[i] = ucontrol->value.integer.value[i]; + if (!memcmp(chmap, per_pin->chmap, sizeof(chmap))) + return 0; + ca = hdmi_manual_channel_allocation(ARRAY_SIZE(chmap), chmap); + if (ca < 0) + return -EINVAL; + per_pin->chmap_set = true; + memcpy(per_pin->chmap, chmap, sizeof(chmap)); + if (prepared) + hdmi_setup_audio_infoframe(codec, pin_idx, per_pin->non_pcm, + substream); + + return 0; +} + static int generic_hdmi_build_pcms(struct hda_codec *codec) { struct hdmi_spec *spec = codec->spec; @@ -1273,6 +1549,7 @@ static int generic_hdmi_build_pcms(struct hda_codec *codec) info = &spec->pcm_rec[pin_idx]; info->name = get_hdmi_pcm_name(pin_idx); info->pcm_type = HDA_PCM_TYPE_HDMI; + info->own_chmap = true; pstr = &info->stream[SNDRV_PCM_STREAM_PLAYBACK]; pstr->substreams = 1; @@ -1330,6 +1607,27 @@ static int generic_hdmi_build_controls(struct hda_codec *codec) hdmi_present_sense(per_pin, 0); } + /* add channel maps */ + for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) { + struct snd_pcm_chmap *chmap; + struct snd_kcontrol *kctl; + int i; + err = snd_pcm_add_chmap_ctls(codec->pcm_info[pin_idx].pcm, + SNDRV_PCM_STREAM_PLAYBACK, + NULL, 0, pin_idx, &chmap); + if (err < 0) + return err; + /* override handlers */ + chmap->private_data = codec; + kctl = chmap->kctl; + for (i = 0; i < kctl->count; i++) + kctl->vd[i].access |= SNDRV_CTL_ELEM_ACCESS_WRITE; + kctl->info = hdmi_chmap_ctl_info; + kctl->get = hdmi_chmap_ctl_get; + kctl->put = hdmi_chmap_ctl_put; + kctl->tlv.c = hdmi_chmap_ctl_tlv; + } + return 0; } |