41ac68de1e
* AW882xx logic was the same as the TFA one anyways Change-Id: I87cd6aecd88e2a906d6cc7a293510d0a463cb3f8
232 lines
7.2 KiB
C
232 lines
7.2 KiB
C
/*
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* Copyright (C) 2015 The CyanogenMod Project
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* Copyright (C) 2020 The LineageOS 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 "audio_amplifier"
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//#define LOG_NDEBUG 0
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#include <cutils/str_parms.h>
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#include <hardware/audio_amplifier.h>
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#include <hardware/hardware.h>
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#include <log/log.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <sys/types.h>
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/* clang-format off */
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#include "audio_hw.h"
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#include "platform.h"
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#include "platform_api.h"
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/* clang-format on */
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#define UNUSED __attribute__((unused))
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typedef struct amp_device {
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amplifier_device_t amp_dev;
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struct audio_device* adev;
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struct audio_usecase* usecase_tx;
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struct pcm* aw882xx_out;
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} aw_t;
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static aw_t* aw_dev = NULL;
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static int is_speaker(uint32_t snd_device) {
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int speaker = 0;
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switch (snd_device) {
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case SND_DEVICE_OUT_SPEAKER:
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case SND_DEVICE_OUT_SPEAKER_REVERSE:
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case SND_DEVICE_OUT_SPEAKER_AND_HEADPHONES:
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case SND_DEVICE_OUT_VOICE_SPEAKER:
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case SND_DEVICE_OUT_VOICE_SPEAKER_2:
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case SND_DEVICE_OUT_SPEAKER_AND_HDMI:
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case SND_DEVICE_OUT_SPEAKER_AND_USB_HEADSET:
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case SND_DEVICE_OUT_SPEAKER_AND_ANC_HEADSET:
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speaker = 1;
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break;
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}
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return speaker;
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}
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int aw882xx_start_feedback(void* adev, uint32_t snd_device) {
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aw_dev->adev = (struct audio_device*)adev;
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int pcm_dev_tx_id = 0, rc = 0;
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struct pcm_config pcm_config_aw882xx = {
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.channels = 2,
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.rate = 48000,
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.period_size = 256,
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.period_count = 4,
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.format = PCM_FORMAT_S16_LE,
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.start_threshold = 0,
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.stop_threshold = INT_MAX,
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.silence_threshold = 0,
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};
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if (!aw_dev) {
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ALOGE("%d: Invalid params", __LINE__);
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return -EINVAL;
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}
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if (aw_dev->aw882xx_out || !is_speaker(snd_device)) return 0;
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aw_dev->usecase_tx = (struct audio_usecase*)calloc(1, sizeof(struct audio_usecase));
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if (!aw_dev->usecase_tx) {
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ALOGE("%d: failed to allocate usecase", __LINE__);
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return -ENOMEM;
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}
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aw_dev->usecase_tx->id = USECASE_AUDIO_SPKR_CALIB_TX;
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aw_dev->usecase_tx->type = PCM_CAPTURE;
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aw_dev->usecase_tx->in_snd_device = SND_DEVICE_IN_CAPTURE_VI_FEEDBACK;
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list_init(&aw_dev->usecase_tx->device_list);
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list_add_tail(&aw_dev->adev->usecase_list, &aw_dev->usecase_tx->list);
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enable_snd_device(aw_dev->adev, aw_dev->usecase_tx->in_snd_device);
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enable_audio_route(aw_dev->adev, aw_dev->usecase_tx);
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pcm_dev_tx_id = platform_get_pcm_device_id(aw_dev->usecase_tx->id, aw_dev->usecase_tx->type);
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ALOGD("pcm_dev_tx_id = %d", pcm_dev_tx_id);
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if (pcm_dev_tx_id < 0) {
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ALOGE("%d: Invalid pcm device for usecase (%d)", __LINE__, aw_dev->usecase_tx->id);
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rc = -ENODEV;
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goto error;
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}
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aw_dev->aw882xx_out =
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pcm_open(aw_dev->adev->snd_card, pcm_dev_tx_id, PCM_IN, &pcm_config_aw882xx);
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if (!(aw_dev->aw882xx_out || pcm_is_ready(aw_dev->aw882xx_out))) {
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ALOGE("%d: %s", __LINE__, pcm_get_error(aw_dev->aw882xx_out));
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rc = -EIO;
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goto error;
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}
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rc = pcm_start(aw_dev->aw882xx_out);
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if (rc < 0) {
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ALOGE("%d: pcm start for TX failed", __LINE__);
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rc = -EINVAL;
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goto error;
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}
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return 0;
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error:
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ALOGE("%s: error case", __func__);
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if (aw_dev->aw882xx_out != 0) {
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pcm_close(aw_dev->aw882xx_out);
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aw_dev->aw882xx_out = NULL;
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}
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list_remove(&aw_dev->usecase_tx->list);
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disable_snd_device(aw_dev->adev, aw_dev->usecase_tx->in_snd_device);
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disable_audio_route(aw_dev->adev, aw_dev->usecase_tx);
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free(aw_dev->usecase_tx);
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return rc;
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}
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void aw882xx_stop_feedback(void* adev, uint32_t snd_device) {
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aw_dev->adev = (struct audio_device*)adev;
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if (!aw_dev) {
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ALOGE("%s: Invalid params", __func__);
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return;
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}
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if (!is_speaker(snd_device)) return;
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if (aw_dev->aw882xx_out) {
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pcm_close(aw_dev->aw882xx_out);
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aw_dev->aw882xx_out = NULL;
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}
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disable_snd_device(aw_dev->adev, SND_DEVICE_IN_CAPTURE_VI_FEEDBACK);
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aw_dev->usecase_tx = get_usecase_from_list(aw_dev->adev, USECASE_AUDIO_SPKR_CALIB_TX);
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if (aw_dev->usecase_tx) {
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list_remove(&aw_dev->usecase_tx->list);
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disable_audio_route(aw_dev->adev, aw_dev->usecase_tx);
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free(aw_dev->usecase_tx);
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}
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return;
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}
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static int amp_set_feedback(UNUSED amplifier_device_t* device, void* adev, uint32_t devices,
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bool enable) {
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aw_dev->adev = (struct audio_device*)adev;
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if (enable) {
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aw882xx_start_feedback(aw_dev->adev, devices);
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} else {
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aw882xx_stop_feedback(aw_dev->adev, devices);
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}
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return 0;
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}
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static int amp_dev_close(hw_device_t* device) {
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aw_t* dev = (aw_t*)device;
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if (dev) free(dev);
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return 0;
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}
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static int amp_module_open(const hw_module_t* module, const char* name, hw_device_t** device) {
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if (strcmp(name, AMPLIFIER_HARDWARE_INTERFACE)) {
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ALOGE("%s:%d: %s does not match amplifier hardware interface name\n", __func__, __LINE__,
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name);
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return -ENODEV;
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}
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aw_dev = calloc(1, sizeof(aw_t));
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if (!aw_dev) {
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ALOGE("%s:%d: Unable to allocate memory for amplifier device\n", __func__, __LINE__);
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return -ENOMEM;
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}
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aw_dev->amp_dev.common.tag = HARDWARE_DEVICE_TAG;
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aw_dev->amp_dev.common.module = (hw_module_t*)module;
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aw_dev->amp_dev.common.version = HARDWARE_DEVICE_API_VERSION(1, 0);
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aw_dev->amp_dev.common.close = amp_dev_close;
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aw_dev->amp_dev.set_input_devices = NULL;
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aw_dev->amp_dev.set_output_devices = NULL;
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aw_dev->amp_dev.enable_output_devices = NULL;
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aw_dev->amp_dev.enable_input_devices = NULL;
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aw_dev->amp_dev.set_mode = NULL;
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aw_dev->amp_dev.output_stream_start = NULL;
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aw_dev->amp_dev.input_stream_start = NULL;
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aw_dev->amp_dev.output_stream_standby = NULL;
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aw_dev->amp_dev.input_stream_standby = NULL;
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aw_dev->amp_dev.set_parameters = NULL;
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aw_dev->amp_dev.out_set_parameters = NULL;
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aw_dev->amp_dev.in_set_parameters = NULL;
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aw_dev->amp_dev.set_feedback = amp_set_feedback;
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*device = (hw_device_t*)aw_dev;
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return 0;
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}
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static struct hw_module_methods_t hal_module_methods = {
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.open = amp_module_open,
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};
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/* clang-format off */
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amplifier_module_t HAL_MODULE_INFO_SYM = {
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.common = {
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.tag = HARDWARE_MODULE_TAG,
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.module_api_version = AMPLIFIER_MODULE_API_VERSION_0_1,
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.hal_api_version = HARDWARE_HAL_API_VERSION,
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.id = AMPLIFIER_HARDWARE_MODULE_ID,
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.name = "AW882XX audio amplifier HAL",
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.author = "The LineageOS Project",
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.methods = &hal_module_methods,
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},
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};
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