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alsa-ucm: add support for HDMI ELD

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Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Jaroslav Kysela 2019-12-07 23:22:33 +01:00 • committed by Arun Raghavan
parent 3bd7c70c51
commit 3ceff8bb3f
3 changed files with 113 additions and 22 deletions
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72
src/modules/alsa/alsa-ucm.c
View file

@ -820,6 +820,36 @@ static int pa_alsa_ucm_device_cmp(const void *a, const void *b) {
return strcmp(pa_proplist_gets(d1->proplist, PA_ALSA_PROP_UCM_NAME), pa_proplist_gets(d2->proplist, PA_ALSA_PROP_UCM_NAME));
}
static void set_eld_devices(pa_hashmap *hash)
{
pa_device_port *port;
pa_alsa_ucm_port_data *data;
pa_alsa_ucm_device *dev;
const char *eld_mixer_device_name;
void *state;
int idx, eld_device;
PA_HASHMAP_FOREACH(port, hash, state) {
data = PA_DEVICE_PORT_DATA(port);
eld_mixer_device_name = NULL;
eld_device = -1;
PA_DYNARRAY_FOREACH(dev, data->devices, idx) {
if (dev->eld_device >= 0 && dev->eld_mixer_device_name) {
if (eld_device >= 0 && eld_device != dev->eld_device) {
pa_log_error("The ELD device is already set!");
} else if (eld_mixer_device_name && pa_streq(dev->eld_mixer_device_name, eld_mixer_device_name)) {
pa_log_error("The ELD mixer device is already set (%s, %s)!", dev->eld_mixer_device_name, dev->eld_mixer_device_name);
} else {
eld_mixer_device_name = dev->eld_mixer_device_name;
eld_device = dev->eld_device;
}
}
}
data->eld_device = eld_device;
data->eld_mixer_device_name = pa_xstrdup(eld_mixer_device_name);
}
}
static void probe_volumes(pa_hashmap *hash, bool is_sink, snd_pcm_t *pcm_handle, pa_hashmap *mixers, bool ignore_dB) {
pa_device_port *port;
pa_alsa_path *path;
@ -1159,6 +1189,9 @@ void pa_alsa_ucm_add_ports_combination(
ucm_add_ports_combination(p, context, is_sink, pdevices, 0, PA_IDXSET_INVALID, ports, cp, core);
pa_xfree(pdevices);
}
/* ELD devices */
set_eld_devices(ports);
}
void pa_alsa_ucm_add_ports(
@ -1709,6 +1742,33 @@ static int ucm_create_profile(
return 0;
}
static void mapping_init_eld(pa_alsa_mapping *m, snd_pcm_t *pcm)
{
pa_alsa_ucm_mapping_context *context = &m->ucm_context;
pa_alsa_ucm_device *dev;
uint32_t idx;
char *mdev;
snd_pcm_info_t *info;
int pcm_card, pcm_device;
snd_pcm_info_alloca(&info);
if (snd_pcm_info(pcm, info) < 0)
return;
if ((pcm_card = snd_pcm_info_get_card(info)) < 0)
return;
if ((pcm_device = snd_pcm_info_get_device(info)) < 0)
return;
PA_IDXSET_FOREACH(dev, context->ucm_devices, idx) {
mdev = pa_sprintf_malloc("hw:%i", pcm_card);
if (mdev == NULL)
continue;
dev->eld_mixer_device_name = mdev;
dev->eld_device = pcm_device;
}
}
static snd_pcm_t* mapping_open_pcm(pa_alsa_ucm_config *ucm, pa_alsa_mapping *m, int mode) {
snd_pcm_t* pcm;
pa_sample_spec try_ss = ucm->core->default_sample_spec;
@ -1730,8 +1790,11 @@ static snd_pcm_t* mapping_open_pcm(pa_alsa_ucm_config *ucm, pa_alsa_mapping *m,
pcm = pa_alsa_open_by_device_string(m->device_strings[0], NULL, &try_ss,
&try_map, mode, &try_period_size, &try_buffer_size, 0, NULL, NULL, exact_channels);
if (pcm && !exact_channels)
m->channel_map = try_map;
if (pcm) {
if (!exact_channels)
m->channel_map = try_map;
mapping_init_eld(m, pcm);
}
return pcm;
}
@ -1912,6 +1975,8 @@ static void free_verb(pa_alsa_ucm_verb *verb) {
if (di->supported_devices)
pa_idxset_free(di->supported_devices, NULL);
pa_xfree(di->eld_mixer_device_name);
pa_xfree(di);
}
@ -2115,6 +2180,7 @@ static void ucm_port_data_init(pa_alsa_ucm_port_data *port, pa_alsa_ucm_config *
port->ucm = ucm;
port->core_port = core_port;
port->devices = pa_dynarray_new(NULL);
port->eld_device = -1;
for (i = 0; i < n_devices; i++) {
pa_dynarray_append(port->devices, devices[i]);
@ -2139,6 +2205,8 @@ static void ucm_port_data_free(pa_device_port *port) {
if (ucm_port->paths)
pa_hashmap_free(ucm_port->paths);
pa_xfree(ucm_port->eld_mixer_device_name);
}
static void ucm_port_update_available(pa_alsa_ucm_port_data *port) {

7
src/modules/alsa/alsa-ucm.h
View file

@ -207,6 +207,9 @@ struct pa_alsa_ucm_device {
pa_alsa_jack *jack;
pa_dynarray *hw_mute_jacks; /* pa_alsa_jack */
pa_available_t available;
char *eld_mixer_device_name;
int eld_device;
};
void pa_alsa_ucm_device_update_available(pa_alsa_ucm_device *device);
@ -273,6 +276,10 @@ struct pa_alsa_ucm_port_data {
pa_hashmap *paths;
/* Current path, set when activating profile */
pa_alsa_path *path;
/* ELD info */
char *eld_mixer_device_name;
int eld_device; /* PCM device number */
};
struct pa_alsa_ucm_volume {

56
src/modules/alsa/module-alsa-card.c
View file

@ -512,15 +512,24 @@ static int report_jack_state(snd_mixer_elem_t *melem, unsigned int mask) {
return 0;
}
static pa_device_port* find_port_with_eld_device(pa_hashmap *ports, int device) {
static pa_device_port* find_port_with_eld_device(struct userdata *u, int device) {
void *state;
pa_device_port *p;
PA_HASHMAP_FOREACH(p, ports, state) {
pa_alsa_port_data *data = PA_DEVICE_PORT_DATA(p);
pa_assert(data->path);
if (device == data->path->eld_device)
return p;
if (u->use_ucm) {
PA_HASHMAP_FOREACH(p, u->card->ports, state) {
pa_alsa_ucm_port_data *data = PA_DEVICE_PORT_DATA(p);
pa_assert(data->eld_mixer_device_name);
if (device == data->eld_device)
return p;
}
} else {
PA_HASHMAP_FOREACH(p, u->card->ports, state) {
pa_alsa_port_data *data = PA_DEVICE_PORT_DATA(p);
pa_assert(data->path);
if (device == data->path->eld_device)
return p;
}
}
return NULL;
}
@ -537,10 +546,7 @@ static int hdmi_eld_changed(snd_mixer_elem_t *melem, unsigned int mask) {
if (mask == SND_CTL_EVENT_MASK_REMOVE)
return 0;
if (u->use_ucm)
return 0;
p = find_port_with_eld_device(u->card->ports, device);
p = find_port_with_eld_device(u, device);
if (p == NULL) {
pa_log_error("Invalid device changed in ALSA: %d", device);
return 0;
@ -571,21 +577,30 @@ static void init_eld_ctls(struct userdata *u) {
/* The code in this function expects ports to have a pa_alsa_port_data
* struct as their data, but in UCM mode ports don't have any data. Hence,
* the ELD controls can't currently be used in UCM mode. */
if (u->use_ucm)
return;
PA_HASHMAP_FOREACH(port, u->card->ports, state) {
pa_alsa_port_data *data = PA_DEVICE_PORT_DATA(port);
snd_mixer_t *mixer_handle;
snd_mixer_elem_t* melem;
int device;
pa_assert(data->path);
device = data->path->eld_device;
if (device < 0)
continue;
if (u->use_ucm) {
pa_alsa_ucm_port_data *data = PA_DEVICE_PORT_DATA(port);
device = data->eld_device;
if (device < 0 || !data->eld_mixer_device_name)
continue;
mixer_handle = pa_alsa_open_mixer_by_name(u->mixers, data->eld_mixer_device_name, true);
} else {
pa_alsa_port_data *data = PA_DEVICE_PORT_DATA(port);
pa_assert(data->path);
device = data->path->eld_device;
if (device < 0)
continue;
mixer_handle = pa_alsa_open_mixer(u->mixers, u->alsa_card_index, true);
}
mixer_handle = pa_alsa_open_mixer(u->mixers, u->alsa_card_index, true);
if (!mixer_handle)
continue;
@ -595,9 +610,10 @@ static void init_eld_ctls(struct userdata *u) {
snd_mixer_elem_set_callback(melem, hdmi_eld_changed);
snd_mixer_elem_set_callback_private(melem, u);
hdmi_eld_changed(melem, 0);
pa_log_info("ELD device found for port %s (%d).", port->name, device);
}
else
pa_log_debug("No ELD device found for port %s.", port->name);
pa_log_debug("No ELD device found for port %s (%d).", port->name, device);
}
}