| /* |
| * Copyright (c) 2021, The Linux Foundation. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials provided |
| * with the distribution. |
| * * Neither the name of The Linux Foundation nor the names of its |
| * contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS |
| * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
| * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
| * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN |
| * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #define LOG_TAG "PAL: bt_ble" |
| //#define LOG_NDEBUG 0 |
| |
| #include <log/log.h> |
| #include <errno.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include "bt_ble.h" |
| #include <lc3_encoder_api.h> |
| #include <lc3_decoder_api.h> |
| |
| static int ble_pack_enc_config(bt_codec_t *codec, void *src, void **dst) |
| { |
| audio_lc3_codec_cfg_t *ble_bt_cfg = NULL; |
| bt_enc_payload_t *enc_payload = NULL; |
| struct param_id_lc3_encoder_config_payload_t *enc_init = NULL; |
| int ret = 0, num_blks = 1, payload_sz = 0, i = 0; |
| custom_block_t *blk[1] = {NULL}; |
| |
| ALOGV("%s", __func__); |
| if ((src == NULL) || (dst == NULL)) { |
| ALOGE("%s: invalid input parameters", __func__); |
| return -EINVAL; |
| } |
| |
| ble_bt_cfg = (audio_lc3_codec_cfg_t *)src; |
| |
| enc_payload = (bt_enc_payload_t *)calloc(1, sizeof(bt_enc_payload_t) + |
| num_blks * sizeof(custom_block_t *)); |
| if (enc_payload == NULL) { |
| ALOGE("%s: fail to allocate memory", __func__); |
| return -ENOMEM; |
| } |
| |
| enc_payload->bit_format = ble_bt_cfg->enc_cfg.toAirConfig.bit_depth; |
| enc_payload->sample_rate = ble_bt_cfg->enc_cfg.toAirConfig.sampling_freq; |
| enc_payload->num_blks = num_blks; |
| if (ble_bt_cfg->enc_cfg.stream_map_size) { |
| if ((1 == ble_bt_cfg->enc_cfg.stream_map_size) && |
| (ble_bt_cfg->enc_cfg.streamMapOut[0].audio_location != 3)) |
| enc_payload->channel_count = CH_MONO; |
| else |
| enc_payload->channel_count = CH_STEREO; |
| } |
| |
| enc_payload->is_abr_enabled = true; |
| enc_payload->is_enc_config_set = ble_bt_cfg->is_enc_config_set; |
| enc_payload->is_dec_config_set = ble_bt_cfg->is_dec_config_set; |
| |
| for (i = 0; i < num_blks; i++) { |
| blk[i] = (custom_block_t *)calloc(1, sizeof(custom_block_t)); |
| if (!blk[i]) { |
| ret = -ENOMEM; |
| goto free_payload; |
| } |
| } |
| |
| /* populate payload for PARAM_ID_LC3_ENC_INIT */ |
| payload_sz = sizeof(struct param_id_lc3_encoder_config_payload_t) + |
| sizeof(stream_map_t) * ble_bt_cfg->enc_cfg.stream_map_size; |
| enc_init = (struct param_id_lc3_encoder_config_payload_t *)calloc(1, payload_sz); |
| if (enc_init == NULL) { |
| ALOGE("%s: fail to allocate memory", __func__); |
| ret = -ENOMEM; |
| goto free_payload; |
| } |
| |
| enc_init->stream_map_size = ble_bt_cfg->enc_cfg.stream_map_size; |
| enc_init->toAirConfig.api_version = ble_bt_cfg->enc_cfg.toAirConfig.api_version; |
| enc_init->toAirConfig.sampling_Frequency = ble_bt_cfg->enc_cfg.toAirConfig.sampling_freq; |
| enc_init->toAirConfig.max_octets_per_frame = ble_bt_cfg->enc_cfg.toAirConfig.max_octets_per_frame; |
| enc_init->toAirConfig.frame_duration = ble_bt_cfg->enc_cfg.toAirConfig.frame_duration; |
| enc_init->toAirConfig.bit_depth = ble_bt_cfg->enc_cfg.toAirConfig.bit_depth; |
| enc_init->toAirConfig.num_blocks = ble_bt_cfg->enc_cfg.toAirConfig.num_blocks; |
| enc_init->toAirConfig.default_q_level = ble_bt_cfg->enc_cfg.toAirConfig.default_q_level; |
| enc_init->toAirConfig.mode = ble_bt_cfg->enc_cfg.toAirConfig.mode; |
| for (i = 0; i < 16; i++) { |
| enc_init->toAirConfig.vendor_specific[i] = |
| ble_bt_cfg->enc_cfg.toAirConfig.vendor_specific[i]; |
| } |
| |
| for (i = 0; i < enc_init->stream_map_size; i++) { |
| enc_init->streamMapOut[i].audio_location = ble_bt_cfg->enc_cfg.streamMapOut[i].audio_location; |
| enc_init->streamMapOut[i].stream_id = ble_bt_cfg->enc_cfg.streamMapOut[i].stream_id; |
| enc_init->streamMapOut[i].direction = ble_bt_cfg->enc_cfg.streamMapOut[i].direction; |
| } |
| |
| ret = bt_base_populate_enc_cmn_param(blk[0], PARAM_ID_LC3_ENC_INIT, |
| enc_init, payload_sz); |
| free(enc_init); |
| if (ret) |
| goto free_payload; |
| |
| enc_payload->blocks[0] = blk[0]; |
| *dst = enc_payload; |
| codec->payload = enc_payload; |
| |
| return ret; |
| free_payload: |
| for (i = 0; i < num_blks; i++) { |
| if (blk[i]) { |
| if (blk[i]->payload) |
| free(blk[i]->payload); |
| free(blk[i]); |
| } |
| } |
| if (enc_payload) |
| free(enc_payload); |
| return ret; |
| } |
| |
| static int ble_pack_dec_config(bt_codec_t *codec, void *src, void **dst) |
| { |
| audio_lc3_codec_cfg_t *ble_bt_cfg = NULL; |
| bt_enc_payload_t *enc_payload = NULL; |
| struct param_id_lc3_decoder_config_payload_t *dec_init = NULL; |
| int ret = 0, num_blks = 1, payload_sz = 0, i = 0; |
| custom_block_t *blk[1] = {NULL}; |
| |
| ALOGV("%s", __func__); |
| if ((src == NULL) || (dst == NULL)) { |
| ALOGE("%s: invalid input parameters", __func__); |
| return -EINVAL; |
| } |
| |
| ble_bt_cfg = (audio_lc3_codec_cfg_t *)src; |
| |
| enc_payload = (bt_enc_payload_t *)calloc(1, sizeof(bt_enc_payload_t) + |
| num_blks * sizeof(custom_block_t *)); |
| if (enc_payload == NULL) { |
| ALOGE("%s: fail to allocate memory", __func__); |
| return -ENOMEM; |
| } |
| |
| enc_payload->bit_format = ble_bt_cfg->dec_cfg.fromAirConfig.bit_depth; |
| enc_payload->sample_rate = ble_bt_cfg->dec_cfg.fromAirConfig.sampling_freq; |
| enc_payload->channel_count = ble_bt_cfg->dec_cfg.decoder_output_channel; |
| enc_payload->num_blks = num_blks; |
| enc_payload->is_abr_enabled = true; |
| enc_payload->is_enc_config_set = ble_bt_cfg->is_enc_config_set; |
| enc_payload->is_dec_config_set = ble_bt_cfg->is_dec_config_set; |
| |
| for (i = 0; i < num_blks; i++) { |
| blk[i] = (custom_block_t *)calloc(1, sizeof(custom_block_t)); |
| if (!blk[i]) { |
| ret = -ENOMEM; |
| goto free_payload; |
| } |
| } |
| |
| /* populate payload for PARAM_ID_LC3_DEC_INIT */ |
| payload_sz = sizeof(struct param_id_lc3_decoder_config_payload_t) + |
| sizeof(stream_map_t) * ble_bt_cfg->dec_cfg.stream_map_size; |
| dec_init = (struct param_id_lc3_decoder_config_payload_t *)calloc(1, payload_sz); |
| if (dec_init == NULL) { |
| ALOGE("%s: fail to allocate memory", __func__); |
| ret = -ENOMEM; |
| goto free_payload; |
| } |
| |
| dec_init->decoder_output_channel = ble_bt_cfg->dec_cfg.decoder_output_channel; |
| dec_init->stream_map_size = ble_bt_cfg->dec_cfg.stream_map_size; |
| dec_init->fromAirConfig.api_version = ble_bt_cfg->dec_cfg.fromAirConfig.api_version; |
| dec_init->fromAirConfig.sampling_Frequency = ble_bt_cfg->dec_cfg.fromAirConfig.sampling_freq; |
| dec_init->fromAirConfig.max_octets_per_frame = ble_bt_cfg->dec_cfg.fromAirConfig.max_octets_per_frame; |
| dec_init->fromAirConfig.frame_duration = ble_bt_cfg->dec_cfg.fromAirConfig.frame_duration; |
| dec_init->fromAirConfig.bit_depth = ble_bt_cfg->dec_cfg.fromAirConfig.bit_depth; |
| dec_init->fromAirConfig.num_blocks = ble_bt_cfg->dec_cfg.fromAirConfig.num_blocks; |
| dec_init->fromAirConfig.default_q_level = ble_bt_cfg->dec_cfg.fromAirConfig.default_q_level; |
| dec_init->fromAirConfig.mode = ble_bt_cfg->dec_cfg.fromAirConfig.mode; |
| for (i = 0; i < 16; i++) { |
| dec_init->fromAirConfig.vendor_specific[i] = |
| ble_bt_cfg->dec_cfg.fromAirConfig.vendor_specific[i]; |
| } |
| |
| for (i = 0; i < dec_init->stream_map_size; i++) { |
| dec_init->streamMapIn[i].audio_location = ble_bt_cfg->dec_cfg.streamMapIn[i].audio_location; |
| dec_init->streamMapIn[i].stream_id = ble_bt_cfg->dec_cfg.streamMapIn[i].stream_id; |
| dec_init->streamMapIn[i].direction = ble_bt_cfg->dec_cfg.streamMapIn[i].direction; |
| } |
| |
| ret = bt_base_populate_enc_cmn_param(blk[0], PARAM_ID_LC3_DEC_INIT, |
| dec_init, payload_sz); |
| free(dec_init); |
| if (ret) |
| goto free_payload; |
| |
| enc_payload->blocks[0] = blk[0]; |
| *dst = enc_payload; |
| codec->payload = enc_payload; |
| |
| return ret; |
| free_payload: |
| for (i = 0; i < num_blks; i++) { |
| if (blk[i]) { |
| if (blk[i]->payload) |
| free(blk[i]->payload); |
| free(blk[i]); |
| } |
| } |
| if (enc_payload) |
| free(enc_payload); |
| return ret; |
| } |
| |
| static int bt_ble_populate_payload(bt_codec_t *codec, void *src, void **dst) |
| { |
| config_fn_t config_fn = NULL; |
| |
| if (codec->payload) |
| free(codec->payload); |
| |
| switch (codec->codecFmt) { |
| case CODEC_TYPE_LC3: |
| config_fn = ((codec->direction == ENC) ? &ble_pack_enc_config : |
| &ble_pack_dec_config); |
| break; |
| case CODEC_TYPE_APTX_AD_QLEA: |
| config_fn = ((codec->direction == ENC) ? &ble_pack_enc_config : |
| NULL); |
| break; |
| default: |
| ALOGD("%s unsupported codecFmt %d\n", __func__, codec->codecFmt); |
| } |
| |
| if (config_fn != NULL) { |
| return config_fn(codec, src, dst); |
| } |
| |
| return -EINVAL; |
| } |
| |
| static uint64_t bt_ble_get_decoder_latency(bt_codec_t *codec, |
| uint32_t slatency) |
| { |
| uint32_t latency = 0; |
| |
| switch (codec->codecFmt) { |
| case CODEC_TYPE_LC3: |
| latency = slatency; |
| break; |
| default: |
| latency = 200; |
| ALOGD("No valid decoder defined, setting latency to %dms", latency); |
| break; |
| } |
| return (uint64_t)latency; |
| } |
| |
| static uint64_t bt_ble_get_encoder_latency(bt_codec_t *codec, |
| uint32_t slatency) |
| { |
| uint32_t latency = 0; |
| |
| switch (codec->codecFmt) { |
| case CODEC_TYPE_LC3: |
| case CODEC_TYPE_APTX_AD_QLEA: |
| latency = slatency; |
| break; |
| default: |
| latency = 200; |
| break; |
| } |
| ALOGV("%s: codecFmt %u, direction %d, slatency %u, latency %u", |
| __func__, codec->codecFmt, codec->direction, slatency, latency); |
| return latency; |
| } |
| |
| static uint64_t bt_ble_get_codec_latency(bt_codec_t *codec, uint32_t slatency) |
| { |
| |
| if (codec->direction == ENC) |
| return bt_ble_get_encoder_latency(codec, slatency); |
| else |
| return bt_ble_get_decoder_latency(codec, slatency); |
| } |
| |
| int bt_ble_query_num_codecs(bt_codec_t *codec __unused) { |
| ALOGV("%s", __func__); |
| return NUM_CODEC; |
| } |
| |
| void bt_ble_close(bt_codec_t *codec) |
| { |
| bt_enc_payload_t *payload = codec->payload; |
| int num_blks, i; |
| custom_block_t *blk; |
| |
| if (payload) { |
| num_blks = payload->num_blks; |
| for (i = 0; i < num_blks; i++) { |
| blk = payload->blocks[i]; |
| if (blk) { |
| if (blk->payload) |
| free(blk->payload); |
| free(blk); |
| blk = NULL; |
| } |
| } |
| free(payload); |
| } |
| free(codec); |
| } |
| |
| __attribute__ ((visibility ("default"))) |
| int plugin_open(bt_codec_t **codec, uint32_t codecFmt, codec_type direction) |
| { |
| bt_codec_t *bt_codec = NULL; |
| |
| |
| bt_codec = calloc(1, sizeof(bt_codec_t)); |
| if (!bt_codec) { |
| ALOGE("%s: Memory allocation failed\n", __func__); |
| return -ENOMEM; |
| } |
| |
| bt_codec->codecFmt = codecFmt; |
| bt_codec->direction = direction; |
| bt_codec->plugin_populate_payload = bt_ble_populate_payload; |
| bt_codec->plugin_get_codec_latency = bt_ble_get_codec_latency; |
| bt_codec->plugin_query_num_codecs = bt_ble_query_num_codecs; |
| bt_codec->close_plugin = bt_ble_close; |
| |
| *codec = bt_codec; |
| return 0; |
| } |