diff options
Diffstat (limited to 'cras/src/server/cras_alsa_ucm.c')
| -rw-r--r-- | cras/src/server/cras_alsa_ucm.c | 155 |
1 files changed, 135 insertions, 20 deletions
diff --git a/cras/src/server/cras_alsa_ucm.c b/cras/src/server/cras_alsa_ucm.c index 9759a50f..3e46f6a9 100644 --- a/cras/src/server/cras_alsa_ucm.c +++ b/cras/src/server/cras_alsa_ucm.c @@ -22,7 +22,6 @@ static const char override_type_name_var[] = "OverrideNodeType"; static const char dsp_name_var[] = "DspName"; static const char playback_mixer_elem_var[] = "PlaybackMixerElem"; static const char capture_mixer_elem_var[] = "CaptureMixerElem"; -static const char swap_mode_suffix[] = "Swap Mode"; static const char min_buffer_level_var[] = "MinBufferLevel"; static const char dma_period_var[] = "DmaPeriodMicrosecs"; static const char disable_software_volume[] = "DisableSoftwareVolume"; @@ -38,6 +37,11 @@ static const char dependent_device_name_var[] = "DependentPCM"; static const char preempt_hotword_var[] = "PreemptHotword"; static const char echo_reference_dev_name_var[] = "EchoReferenceDev"; +/* SectionModifier prefixes and suffixes. */ +static const char hotword_model_prefix[] = "Hotword Model"; +static const char swap_mode_suffix[] = "Swap Mode"; +static const char noise_cancellation_suffix[] = "Noise Cancellation"; + /* * Set this value in a SectionDevice to specify the intrinsic sensitivity in * 0.01 dBFS/Pa. It currently only supports input devices. You should get the @@ -54,7 +58,6 @@ static const char intrinsic_sensitivity_var[] = "IntrinsicSensitivity"; * 0.01 dB. */ static const char default_node_gain[] = "DefaultNodeGain"; -static const char hotword_model_prefix[] = "Hotword Model"; static const char fully_specified_ucm_var[] = "FullySpecifiedUCM"; static const char main_volume_names[] = "MainVolumeNames"; @@ -64,6 +67,8 @@ static const char *use_case_verbs[] = { "Speech", "Pro Audio", "Accessibility", }; +static const size_t max_section_name_len = 100; + /* Represents a list of section names found in UCM. */ struct section_name { const char *name; @@ -72,9 +77,10 @@ struct section_name { struct cras_use_case_mgr { snd_use_case_mgr_t *mgr; - const char *name; + char *name; unsigned int avail_use_cases; enum CRAS_STREAM_TYPE use_case; + char *hotword_modifier; }; static inline const char *uc_verb(struct cras_use_case_mgr *mgr) @@ -376,6 +382,21 @@ static struct mixer_name *ucm_get_mixer_names(struct cras_use_case_mgr *mgr, return names; } +/* Gets the modifier name of Noise Cancellation for the given node_name. */ +static void ucm_get_node_noise_cancellation_name(const char *node_name, + char *mod_name) +{ + size_t len = + strlen(node_name) + 1 + strlen(noise_cancellation_suffix) + 1; + if (len > max_section_name_len) { + syslog(LOG_ERR, + "Length of the given section name is %zu > %zu(max)", + len, max_section_name_len); + len = max_section_name_len; + } + snprintf(mod_name, len, "%s %s", node_name, noise_cancellation_suffix); +} + /* Exported Interface */ struct cras_use_case_mgr *ucm_create(const char *name) @@ -394,6 +415,10 @@ struct cras_use_case_mgr *ucm_create(const char *name) if (!mgr) return NULL; + mgr->name = strdup(name); + if (!mgr->name) + goto cleanup; + rc = snd_use_case_mgr_open(&mgr->mgr, name); if (rc) { syslog(LOG_WARNING, "Can not open ucm for card %s, rc = %d", @@ -401,8 +426,8 @@ struct cras_use_case_mgr *ucm_create(const char *name) goto cleanup; } - mgr->name = name; mgr->avail_use_cases = 0; + mgr->hotword_modifier = NULL; num_verbs = snd_use_case_get_list(mgr->mgr, "_verbs", &list); for (i = 0; i < num_verbs; i += 2) { for (j = 0; j < CRAS_STREAM_NUM_TYPES; ++j) { @@ -424,6 +449,7 @@ struct cras_use_case_mgr *ucm_create(const char *name) cleanup_mgr: snd_use_case_mgr_close(mgr->mgr); cleanup: + free(mgr->name); free(mgr); return NULL; } @@ -431,6 +457,8 @@ cleanup: void ucm_destroy(struct cras_use_case_mgr *mgr) { snd_use_case_mgr_close(mgr->mgr); + free(mgr->hotword_modifier); + free(mgr->name); free(mgr); } @@ -487,6 +515,51 @@ int ucm_enable_swap_mode(struct cras_use_case_mgr *mgr, const char *node_name, return rc; } +int ucm_node_noise_cancellation_exists(struct cras_use_case_mgr *mgr, + const char *node_name) +{ + char *node_modifier_name = NULL; + int exists; + + node_modifier_name = (char *)malloc(max_section_name_len); + if (!node_modifier_name) + return 0; + ucm_get_node_noise_cancellation_name(node_name, node_modifier_name); + exists = ucm_mod_exists_with_name(mgr, node_modifier_name); + free((void *)node_modifier_name); + return exists; +} + +int ucm_enable_node_noise_cancellation(struct cras_use_case_mgr *mgr, + const char *node_name, int enable) +{ + char *node_modifier_name = NULL; + int rc; + + node_modifier_name = (char *)malloc(max_section_name_len); + if (!node_modifier_name) + return -ENOMEM; + ucm_get_node_noise_cancellation_name(node_name, node_modifier_name); + if (!ucm_mod_exists_with_name(mgr, node_modifier_name)) { + syslog(LOG_ERR, "Can not find modifier %s.", + node_modifier_name); + free((void *)node_modifier_name); + return -EPERM; + } + if (modifier_enabled(mgr, node_modifier_name) == !!enable) { + syslog(LOG_DEBUG, "Modifier %s is already %s.", + node_modifier_name, enable ? "enabled" : "disabled"); + free((void *)node_modifier_name); + return 0; + } + + syslog(LOG_DEBUG, "UCM %s Modifier %s", enable ? "enable" : "disable", + node_modifier_name); + rc = ucm_set_modifier_enabled(mgr, node_modifier_name, enable); + free((void *)node_modifier_name); + return rc; +} + int ucm_set_enabled(struct cras_use_case_mgr *mgr, const char *dev, int enable) { int rc; @@ -984,14 +1057,61 @@ char *ucm_get_hotword_models(struct cras_use_case_mgr *mgr) return models; } -int ucm_set_hotword_model(struct cras_use_case_mgr *mgr, const char *model) +void ucm_disable_all_hotword_models(struct cras_use_case_mgr *mgr) { const char **list; int num_enmods, mod_idx; - char *model_mod = NULL; + + if (!mgr) + return; + + /* Disable all currently enabled hotword model modifiers. */ + num_enmods = snd_use_case_get_list(mgr->mgr, "_enamods", &list); + if (num_enmods <= 0) + return; + + for (mod_idx = 0; mod_idx < num_enmods; mod_idx++) { + if (!strncmp(list[mod_idx], hotword_model_prefix, + strlen(hotword_model_prefix))) + ucm_set_modifier_enabled(mgr, list[mod_idx], 0); + } + snd_use_case_free_list(list, num_enmods); +} + +int ucm_enable_hotword_model(struct cras_use_case_mgr *mgr) +{ + if (mgr->hotword_modifier) + return ucm_set_modifier_enabled(mgr, mgr->hotword_modifier, 1); + return -EINVAL; +} + +static int ucm_is_modifier_enabled(struct cras_use_case_mgr *mgr, + char *modifier, long *value) +{ + int rc; + char *id; + size_t len = strlen(modifier) + 11 + 1; + + id = (char *)malloc(len); + + if (!id) + return -ENOMEM; + + snprintf(id, len, "_modstatus/%s", modifier); + rc = snd_use_case_geti(mgr->mgr, id, value); + free(id); + return rc; +} + +int ucm_set_hotword_model(struct cras_use_case_mgr *mgr, const char *model) +{ + char *model_mod; + long mod_status = 0; size_t model_mod_size = strlen(model) + 1 + strlen(hotword_model_prefix) + 1; + model_mod = (char *)malloc(model_mod_size); + if (!model_mod) return -ENOMEM; snprintf(model_mod, model_mod_size, "%s %s", hotword_model_prefix, @@ -1001,21 +1121,16 @@ int ucm_set_hotword_model(struct cras_use_case_mgr *mgr, const char *model) return -EINVAL; } - /* Disable all currently enabled horword model modifiers. */ - num_enmods = snd_use_case_get_list(mgr->mgr, "_enamods", &list); - if (num_enmods <= 0) - goto enable_mod; - - for (mod_idx = 0; mod_idx < num_enmods; mod_idx++) { - if (!strncmp(list[mod_idx], hotword_model_prefix, - strlen(hotword_model_prefix))) - ucm_set_modifier_enabled(mgr, list[mod_idx], 0); - } - snd_use_case_free_list(list, num_enmods); + /* If check failed, just move on, dont fail incoming model */ + if (mgr->hotword_modifier) + ucm_is_modifier_enabled(mgr, mgr->hotword_modifier, + &mod_status); -enable_mod: - ucm_set_modifier_enabled(mgr, model_mod, 1); - free((void *)model_mod); + ucm_disable_all_hotword_models(mgr); + free(mgr->hotword_modifier); + mgr->hotword_modifier = model_mod; + if (mod_status) + return ucm_enable_hotword_model(mgr); return 0; } |