#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"
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 {
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
}
-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)
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
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 */
"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));
/* 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;
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,
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;
}
.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;
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;
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;
}
projects / karo-tx-linux.git / commitdiff