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129 lines
5.4 KiB
129 lines
5.4 KiB
/* |
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* Copyright (C) 2014 The Android Open Source Project |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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#define LOG_TAG "alsa_logging" |
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/*#define LOG_NDEBUG 0*/ |
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#include <string.h> |
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#include <log/log.h> |
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#include "include/alsa_logging.h" |
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#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0])) |
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/* |
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* Logging |
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*/ |
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void log_pcm_mask(const char* mask_name, struct pcm_mask* mask) |
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{ |
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const size_t num_slots = ARRAY_SIZE(mask->bits); |
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const size_t bits_per_slot = (sizeof(mask->bits[0]) * 8); |
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const size_t chars_per_slot = (bits_per_slot + 1); /* comma */ |
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const size_t BUFF_SIZE = |
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(num_slots * chars_per_slot + 2 + 1); /* brackets and null-terminator */ |
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char buff[BUFF_SIZE]; |
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buff[0] = '\0'; |
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size_t slot_index, bit_index; |
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strcat(buff, "["); |
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for (slot_index = 0; slot_index < num_slots; slot_index++) { |
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unsigned bit_mask = 1; |
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for (bit_index = 0; bit_index < bits_per_slot; bit_index++) { |
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strcat(buff, (mask->bits[slot_index] & bit_mask) != 0 ? "1" : "0"); |
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bit_mask <<= 1; |
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} |
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if (slot_index < num_slots - 1) { |
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strcat(buff, ","); |
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} |
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} |
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strcat(buff, "]"); |
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ALOGV("%s: mask:%s", mask_name, buff); |
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} |
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void log_pcm_params(struct pcm_params * alsa_hw_params) |
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{ |
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ALOGV("usb:audio_hw - PCM_PARAM_SAMPLE_BITS min:%u, max:%u", |
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pcm_params_get_min(alsa_hw_params, PCM_PARAM_SAMPLE_BITS), |
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pcm_params_get_max(alsa_hw_params, PCM_PARAM_SAMPLE_BITS)); |
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ALOGV("usb:audio_hw - PCM_PARAM_FRAME_BITS min:%u, max:%u", |
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pcm_params_get_min(alsa_hw_params, PCM_PARAM_FRAME_BITS), |
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pcm_params_get_max(alsa_hw_params, PCM_PARAM_FRAME_BITS)); |
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log_pcm_mask("PCM_PARAM_FORMAT", |
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pcm_params_get_mask(alsa_hw_params, PCM_PARAM_FORMAT)); |
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log_pcm_mask("PCM_PARAM_SUBFORMAT", |
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pcm_params_get_mask(alsa_hw_params, PCM_PARAM_SUBFORMAT)); |
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ALOGV("usb:audio_hw - PCM_PARAM_CHANNELS min:%u, max:%u", |
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pcm_params_get_min(alsa_hw_params, PCM_PARAM_CHANNELS), |
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pcm_params_get_max(alsa_hw_params, PCM_PARAM_CHANNELS)); |
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ALOGV("usb:audio_hw - PCM_PARAM_RATE min:%u, max:%u", |
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pcm_params_get_min(alsa_hw_params, PCM_PARAM_RATE), |
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pcm_params_get_max(alsa_hw_params, PCM_PARAM_RATE)); |
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ALOGV("usb:audio_hw - PCM_PARAM_PERIOD_TIME min:%u, max:%u", |
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pcm_params_get_min(alsa_hw_params, PCM_PARAM_PERIOD_TIME), |
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pcm_params_get_max(alsa_hw_params, PCM_PARAM_PERIOD_TIME)); |
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ALOGV("usb:audio_hw - PCM_PARAM_PERIOD_SIZE min:%u, max:%u", |
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pcm_params_get_min(alsa_hw_params, PCM_PARAM_PERIOD_SIZE), |
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pcm_params_get_max(alsa_hw_params, PCM_PARAM_PERIOD_SIZE)); |
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ALOGV("usb:audio_hw - PCM_PARAM_PERIOD_BYTES min:%u, max:%u", |
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pcm_params_get_min(alsa_hw_params, PCM_PARAM_PERIOD_BYTES), |
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pcm_params_get_max(alsa_hw_params, PCM_PARAM_PERIOD_BYTES)); |
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ALOGV("usb:audio_hw - PCM_PARAM_PERIODS min:%u, max:%u", |
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pcm_params_get_min(alsa_hw_params, PCM_PARAM_PERIODS), |
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pcm_params_get_max(alsa_hw_params, PCM_PARAM_PERIODS)); |
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ALOGV("usb:audio_hw - PCM_PARAM_BUFFER_TIME min:%u, max:%u", |
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pcm_params_get_min(alsa_hw_params, PCM_PARAM_BUFFER_TIME), |
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pcm_params_get_max(alsa_hw_params, PCM_PARAM_BUFFER_TIME)); |
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ALOGV("usb:audio_hw - PCM_PARAM_BUFFER_SIZE min:%u, max:%u", |
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pcm_params_get_min(alsa_hw_params, PCM_PARAM_BUFFER_SIZE), |
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pcm_params_get_max(alsa_hw_params, PCM_PARAM_BUFFER_SIZE)); |
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ALOGV("usb:audio_hw - PCM_PARAM_BUFFER_BYTES min:%u, max:%u", |
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pcm_params_get_min(alsa_hw_params, PCM_PARAM_BUFFER_BYTES), |
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pcm_params_get_max(alsa_hw_params, PCM_PARAM_BUFFER_BYTES)); |
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ALOGV("usb:audio_hw - PCM_PARAM_TICK_TIME min:%u, max:%u", |
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pcm_params_get_min(alsa_hw_params, PCM_PARAM_TICK_TIME), |
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pcm_params_get_max(alsa_hw_params, PCM_PARAM_TICK_TIME)); |
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} |
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void log_pcm_config(struct pcm_config * config, const char* label) { |
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ALOGV("log_pcm_config() - %s", label); |
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ALOGV(" channels:%d", config->channels); |
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ALOGV(" rate:%d", config->rate); |
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ALOGV(" period_size:%d", config->period_size); |
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ALOGV(" period_count:%d", config->period_count); |
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ALOGV(" format:%d", config->format); |
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#if 0 |
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/* Values to use for the ALSA start, stop and silence thresholds. Setting |
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* any one of these values to 0 will cause the default tinyalsa values to be |
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* used instead. Tinyalsa defaults are as follows. |
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* |
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* start_threshold : period_count * period_size |
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* stop_threshold : period_count * period_size |
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* silence_threshold : 0 |
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*/ |
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unsigned int start_threshold; |
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unsigned int stop_threshold; |
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unsigned int silence_threshold; |
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/* Minimum number of frames available before pcm_mmap_write() will actually |
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* write into the kernel buffer. Only used if the stream is opened in mmap mode |
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* (pcm_open() called with PCM_MMAP flag set). Use 0 for default. |
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*/ |
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int avail_min; |
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#endif |
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}
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