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130 lines
5.4 KiB
130 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, const 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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