diff options
Diffstat (limited to 'modules/usbaudio/audio_logging.c')
| -rw-r--r-- | modules/usbaudio/audio_logging.c | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/modules/usbaudio/audio_logging.c b/modules/usbaudio/audio_logging.c new file mode 100644 index 0000000..77fbd51 --- /dev/null +++ b/modules/usbaudio/audio_logging.c @@ -0,0 +1,129 @@ +/* + * Copyright (C) 2014 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#define LOG_TAG "audio_logging" +/*#define LOG_NDEBUG 0*/ + +#include <string.h> + +#include <log/log.h> + +#include "audio_logging.h" + +#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0])) + +/* + * Logging + */ +void log_pcm_mask(const char* mask_name, struct pcm_mask* mask) +{ + const size_t num_slots = ARRAY_SIZE(mask->bits); + const size_t bits_per_slot = (sizeof(mask->bits[0]) * 8); + const size_t chars_per_slot = (bits_per_slot + 1); /* comma */ + + const size_t BUFF_SIZE = + (num_slots * chars_per_slot + 2 + 1); /* brackets and null-terminator */ + char buff[BUFF_SIZE]; + buff[0] = '\0'; + + size_t slot_index, bit_index; + strcat(buff, "["); + for (slot_index = 0; slot_index < num_slots; slot_index++) { + unsigned bit_mask = 1; + for (bit_index = 0; bit_index < bits_per_slot; bit_index++) { + strcat(buff, (mask->bits[slot_index] & bit_mask) != 0 ? "1" : "0"); + bit_mask <<= 1; + } + if (slot_index < num_slots - 1) { + strcat(buff, ","); + } + } + strcat(buff, "]"); + + ALOGV("%s: mask:%s", mask_name, buff); +} + +void log_pcm_params(struct pcm_params * alsa_hw_params) +{ + ALOGV("usb:audio_hw - PCM_PARAM_SAMPLE_BITS min:%u, max:%u", + pcm_params_get_min(alsa_hw_params, PCM_PARAM_SAMPLE_BITS), + pcm_params_get_max(alsa_hw_params, PCM_PARAM_SAMPLE_BITS)); + ALOGV("usb:audio_hw - PCM_PARAM_FRAME_BITS min:%u, max:%u", + pcm_params_get_min(alsa_hw_params, PCM_PARAM_FRAME_BITS), + pcm_params_get_max(alsa_hw_params, PCM_PARAM_FRAME_BITS)); + log_pcm_mask("PCM_PARAM_FORMAT", + pcm_params_get_mask(alsa_hw_params, PCM_PARAM_FORMAT)); + log_pcm_mask("PCM_PARAM_SUBFORMAT", + pcm_params_get_mask(alsa_hw_params, PCM_PARAM_SUBFORMAT)); + ALOGV("usb:audio_hw - PCM_PARAM_CHANNELS min:%u, max:%u", + pcm_params_get_min(alsa_hw_params, PCM_PARAM_CHANNELS), + pcm_params_get_max(alsa_hw_params, PCM_PARAM_CHANNELS)); + ALOGV("usb:audio_hw - PCM_PARAM_RATE min:%u, max:%u", + pcm_params_get_min(alsa_hw_params, PCM_PARAM_RATE), + pcm_params_get_max(alsa_hw_params, PCM_PARAM_RATE)); + ALOGV("usb:audio_hw - PCM_PARAM_PERIOD_TIME min:%u, max:%u", + pcm_params_get_min(alsa_hw_params, PCM_PARAM_PERIOD_TIME), + pcm_params_get_max(alsa_hw_params, PCM_PARAM_PERIOD_TIME)); + ALOGV("usb:audio_hw - PCM_PARAM_PERIOD_SIZE min:%u, max:%u", + pcm_params_get_min(alsa_hw_params, PCM_PARAM_PERIOD_SIZE), + pcm_params_get_max(alsa_hw_params, PCM_PARAM_PERIOD_SIZE)); + ALOGV("usb:audio_hw - PCM_PARAM_PERIOD_BYTES min:%u, max:%u", + pcm_params_get_min(alsa_hw_params, PCM_PARAM_PERIOD_BYTES), + pcm_params_get_max(alsa_hw_params, PCM_PARAM_PERIOD_BYTES)); + ALOGV("usb:audio_hw - PCM_PARAM_PERIODS min:%u, max:%u", + pcm_params_get_min(alsa_hw_params, PCM_PARAM_PERIODS), + pcm_params_get_max(alsa_hw_params, PCM_PARAM_PERIODS)); + ALOGV("usb:audio_hw - PCM_PARAM_BUFFER_TIME min:%u, max:%u", + pcm_params_get_min(alsa_hw_params, PCM_PARAM_BUFFER_TIME), + pcm_params_get_max(alsa_hw_params, PCM_PARAM_BUFFER_TIME)); + ALOGV("usb:audio_hw - PCM_PARAM_BUFFER_SIZE min:%u, max:%u", + pcm_params_get_min(alsa_hw_params, PCM_PARAM_BUFFER_SIZE), + pcm_params_get_max(alsa_hw_params, PCM_PARAM_BUFFER_SIZE)); + ALOGV("usb:audio_hw - PCM_PARAM_BUFFER_BYTES min:%u, max:%u", + pcm_params_get_min(alsa_hw_params, PCM_PARAM_BUFFER_BYTES), + pcm_params_get_max(alsa_hw_params, PCM_PARAM_BUFFER_BYTES)); + ALOGV("usb:audio_hw - PCM_PARAM_TICK_TIME min:%u, max:%u", + pcm_params_get_min(alsa_hw_params, PCM_PARAM_TICK_TIME), + pcm_params_get_max(alsa_hw_params, PCM_PARAM_TICK_TIME)); +} + +void log_pcm_config(struct pcm_config * config, const char* label) { + ALOGV("log_pcm_config() - %s", label); + ALOGV(" channels:%d", config->channels); + ALOGV(" rate:%d", config->rate); + ALOGV(" period_size:%d", config->period_size); + ALOGV(" period_count:%d", config->period_count); + ALOGV(" format:%d", config->format); +#if 0 + /* Values to use for the ALSA start, stop and silence thresholds. Setting + * any one of these values to 0 will cause the default tinyalsa values to be + * used instead. Tinyalsa defaults are as follows. + * + * start_threshold : period_count * period_size + * stop_threshold : period_count * period_size + * silence_threshold : 0 + */ + unsigned int start_threshold; + unsigned int stop_threshold; + unsigned int silence_threshold; + + /* Minimum number of frames available before pcm_mmap_write() will actually + * write into the kernel buffer. Only used if the stream is opened in mmap mode + * (pcm_open() called with PCM_MMAP flag set). Use 0 for default. + */ + int avail_min; +#endif +} |