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517 lines
16 KiB
517 lines
16 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 "audio_hw_hfp"
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/*#define LOG_NDEBUG 0*/
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#define LOG_NDDEBUG 0
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#include <errno.h>
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#include <math.h>
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#include <log/log.h>
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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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#include <stdlib.h>
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#include <cutils/str_parms.h>
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#include "audio_extn/tfa_98xx.h"
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#include "audio_extn.h"
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#define AUDIO_PARAMETER_HFP_ENABLE "hfp_enable"
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#define AUDIO_PARAMETER_HFP_SET_SAMPLING_RATE "hfp_set_sampling_rate"
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#define AUDIO_PARAMETER_KEY_HFP_VOLUME "hfp_volume"
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#define AUDIO_PARAMETER_HFP_VOL_MIXER_CTL "hfp_vol_mixer_ctl"
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#define AUDIO_PARAMATER_HFP_VALUE_MAX 128
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#define AUDIO_PARAMETER_KEY_HFP_MIC_VOLUME "hfp_mic_volume"
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#define PLAYBACK_VOLUME_MAX 0x2000
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#define CAPTURE_VOLUME_DEFAULT (15.0)
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static int32_t start_hfp(struct audio_device *adev,
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struct str_parms *parms);
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static int32_t stop_hfp(struct audio_device *adev);
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struct hfp_module {
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struct pcm *hfp_sco_rx;
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struct pcm *hfp_sco_tx;
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struct pcm *hfp_pcm_rx;
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struct pcm *hfp_pcm_tx;
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float hfp_volume;
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float mic_volume;
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char hfp_vol_mixer_ctl[AUDIO_PARAMATER_HFP_VALUE_MAX];
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bool is_hfp_running;
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bool mic_mute;
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audio_usecase_t ucid;
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};
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static struct hfp_module hfpmod = {
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.hfp_sco_rx = NULL,
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.hfp_sco_tx = NULL,
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.hfp_pcm_rx = NULL,
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.hfp_pcm_tx = NULL,
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.hfp_volume = 0,
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.mic_volume = CAPTURE_VOLUME_DEFAULT,
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.hfp_vol_mixer_ctl = {0, },
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.is_hfp_running = 0,
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.mic_mute = 0,
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.ucid = USECASE_AUDIO_HFP_SCO,
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};
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static struct pcm_config pcm_config_hfp = {
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.channels = 1,
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.rate = 8000,
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.period_size = 240,
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.period_count = 2,
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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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.avail_min = 0,
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};
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static int32_t hfp_set_volume(struct audio_device *adev, float value)
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{
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int32_t vol, ret = 0;
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struct mixer_ctl *ctl;
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ALOGV("%s: entry", __func__);
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ALOGD("%s: (%f)\n", __func__, value);
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hfpmod.hfp_volume = value;
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audio_extn_tfa_98xx_set_voice_vol(value);
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if (value < 0.0) {
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ALOGW("%s: (%f) Under 0.0, assuming 0.0\n", __func__, value);
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value = 0.0;
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} else {
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value = ((value > 15.000000) ? 1.0 : (value / 15));
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ALOGW("%s: Volume brought with in range (%f)\n", __func__, value);
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}
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vol = lrint((value * 0x2000) + 0.5);
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if (!hfpmod.is_hfp_running) {
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ALOGV("%s: HFP not active, ignoring set_hfp_volume call", __func__);
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return -EIO;
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}
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ALOGD("%s: Setting HFP volume to %d \n", __func__, vol);
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if (0 == hfpmod.hfp_vol_mixer_ctl[0]) {
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#ifdef EXTERNAL_BT_SUPPORTED
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strcpy(hfpmod.hfp_vol_mixer_ctl, "PRI AUXPCM LOOPBACK Volume");
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#else
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strcpy(hfpmod.hfp_vol_mixer_ctl, "Internal HFP RX Volume");
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#endif
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ALOGW("%s: Defaulting hfp mixer control to: %s",
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__func__, hfpmod.hfp_vol_mixer_ctl);
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}
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ctl = mixer_get_ctl_by_name(adev->mixer, hfpmod.hfp_vol_mixer_ctl);
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if (!ctl) {
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ALOGE("%s: Could not get ctl for mixer cmd - %s",
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__func__, hfpmod.hfp_vol_mixer_ctl);
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return -EINVAL;
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}
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if(mixer_ctl_set_value(ctl, 0, vol) < 0) {
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ALOGE("%s: Couldn't set HFP Volume: [%d]", __func__, vol);
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return -EINVAL;
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}
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ALOGV("%s: exit", __func__);
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return ret;
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}
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/*Set mic volume to value.
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*
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* This interface is used for mic volume control, set mic volume as value(range 0 ~ 15).
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*/
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static int hfp_set_mic_volume(struct audio_device *adev, float value)
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{
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int volume, ret = 0;
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char mixer_ctl_name[128];
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struct mixer_ctl *ctl;
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int pcm_device_id = HFP_ASM_RX_TX;
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if (!hfpmod.is_hfp_running) {
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ALOGE("%s: HFP not active, ignoring set_hfp_mic_volume call", __func__);
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return -EIO;
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}
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if (value < 0.0) {
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ALOGW("%s: (%f) Under 0.0, assuming 0.0\n", __func__, value);
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value = 0.0;
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} else if (value > CAPTURE_VOLUME_DEFAULT) {
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value = CAPTURE_VOLUME_DEFAULT;
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ALOGW("%s: Volume brought within range (%f)\n", __func__, value);
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}
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value = value / CAPTURE_VOLUME_DEFAULT;
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memset(mixer_ctl_name, 0, sizeof(mixer_ctl_name));
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snprintf(mixer_ctl_name, sizeof(mixer_ctl_name),
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"Playback %d Volume", pcm_device_id);
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ctl = mixer_get_ctl_by_name(adev->mixer, mixer_ctl_name);
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if (!ctl) {
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ALOGE("%s: Could not get ctl for mixer cmd - %s",
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__func__, mixer_ctl_name);
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return -EINVAL;
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}
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volume = (int)(value * PLAYBACK_VOLUME_MAX);
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ALOGD("%s: Setting volume to %d (%s)\n", __func__, volume, mixer_ctl_name);
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if (mixer_ctl_set_value(ctl, 0, volume) < 0) {
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ALOGE("%s: Couldn't set HFP Volume: [%d]", __func__, volume);
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return -EINVAL;
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}
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return ret;
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}
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static float hfp_get_mic_volume(struct audio_device *adev)
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{
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int volume, ret = 0;
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char mixer_ctl_name[128];
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struct mixer_ctl *ctl;
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int pcm_device_id = HFP_ASM_RX_TX;
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float value = 0.0;
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if (!hfpmod.is_hfp_running) {
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ALOGE("%s: HFP not active, ignoring set_hfp_mic_volume call", __func__);
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return -EIO;
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}
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memset(mixer_ctl_name, 0, sizeof(mixer_ctl_name));
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snprintf(mixer_ctl_name, sizeof(mixer_ctl_name),
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"Playback %d Volume", pcm_device_id);
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ctl = mixer_get_ctl_by_name(adev->mixer, mixer_ctl_name);
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if (!ctl) {
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ALOGE("%s: Could not get ctl for mixer cmd - %s",
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__func__, mixer_ctl_name);
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return -EINVAL;
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}
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volume = mixer_ctl_get_value(ctl, 0);
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if ( volume < 0) {
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ALOGE("%s: Couldn't set HFP Volume: [%d]", __func__, volume);
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return -EINVAL;
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}
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ALOGD("%s: getting mic volume %d \n", __func__, volume);
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value = (volume / PLAYBACK_VOLUME_MAX) * CAPTURE_VOLUME_DEFAULT;
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if (value < 0.0) {
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ALOGW("%s: (%f) Under 0.0, assuming 0.0\n", __func__, value);
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value = 0.0;
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} else if (value > CAPTURE_VOLUME_DEFAULT) {
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value = CAPTURE_VOLUME_DEFAULT;
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ALOGW("%s: Volume brought within range (%f)\n", __func__, value);
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}
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return value;
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}
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/*Set mic mute state.
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*
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* This interface is used for mic mute state control
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*/
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int audio_extn_hfp_set_mic_mute(struct audio_device *adev, bool state)
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{
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int rc = 0;
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if (state == hfpmod.mic_mute)
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return rc;
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if (state == true) {
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hfpmod.mic_volume = hfp_get_mic_volume(adev);
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}
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rc = hfp_set_mic_volume(adev, (state == true) ? 0.0 : hfpmod.mic_volume);
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adev->voice.mic_mute = state;
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hfpmod.mic_mute = state;
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ALOGD("%s: Setting mute state %d, rc %d\n", __func__, state, rc);
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return rc;
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}
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static int32_t start_hfp(struct audio_device *adev,
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struct str_parms *parms __unused)
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{
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int32_t i, ret = 0;
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struct audio_usecase *uc_info;
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int32_t pcm_dev_rx_id, pcm_dev_tx_id, pcm_dev_asm_rx_id, pcm_dev_asm_tx_id;
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ALOGD("%s: enter", __func__);
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if (adev->enable_hfp == true) {
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ALOGD("%s: HFP is already active!\n", __func__);
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return 0;
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}
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adev->enable_hfp = true;
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platform_set_mic_mute(adev->platform, false);
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uc_info = (struct audio_usecase *)calloc(1, sizeof(struct audio_usecase));
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uc_info->id = hfpmod.ucid;
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uc_info->type = PCM_HFP_CALL;
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uc_info->stream.out = adev->primary_output;
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uc_info->devices = adev->primary_output->devices;
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uc_info->in_snd_device = SND_DEVICE_NONE;
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uc_info->out_snd_device = SND_DEVICE_NONE;
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list_add_tail(&adev->usecase_list, &uc_info->list);
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audio_extn_tfa_98xx_set_mode_bt();
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select_devices(adev, hfpmod.ucid);
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pcm_dev_rx_id = platform_get_pcm_device_id(uc_info->id, PCM_PLAYBACK);
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pcm_dev_tx_id = platform_get_pcm_device_id(uc_info->id, PCM_CAPTURE);
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pcm_dev_asm_rx_id = HFP_ASM_RX_TX;
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pcm_dev_asm_tx_id = HFP_ASM_RX_TX;
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if (pcm_dev_rx_id < 0 || pcm_dev_tx_id < 0 ||
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pcm_dev_asm_rx_id < 0 || pcm_dev_asm_tx_id < 0 ) {
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ALOGE("%s: Invalid PCM devices (rx: %d tx: %d asm: rx tx %d) for the usecase(%d)",
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__func__, pcm_dev_rx_id, pcm_dev_tx_id, pcm_dev_asm_rx_id, uc_info->id);
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ret = -EIO;
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goto exit;
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}
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ALOGV("%s: HFP PCM devices (hfp rx tx: %d pcm rx tx: %d) for the usecase(%d)",
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__func__, pcm_dev_rx_id, pcm_dev_tx_id, uc_info->id);
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ALOGV("%s: Opening PCM playback device card_id(%d) device_id(%d)",
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__func__, adev->snd_card, pcm_dev_rx_id);
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hfpmod.hfp_sco_rx = pcm_open(adev->snd_card,
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pcm_dev_asm_rx_id,
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PCM_OUT, &pcm_config_hfp);
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if (hfpmod.hfp_sco_rx && !pcm_is_ready(hfpmod.hfp_sco_rx)) {
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ALOGE("%s: %s", __func__, pcm_get_error(hfpmod.hfp_sco_rx));
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ret = -EIO;
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goto exit;
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}
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ALOGD("%s: Opening PCM capture device card_id(%d) device_id(%d)",
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__func__, adev->snd_card, pcm_dev_tx_id);
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if (audio_extn_tfa_98xx_is_supported() == false) {
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hfpmod.hfp_pcm_rx = pcm_open(adev->snd_card,
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pcm_dev_rx_id,
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PCM_OUT, &pcm_config_hfp);
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if (hfpmod.hfp_pcm_rx && !pcm_is_ready(hfpmod.hfp_pcm_rx)) {
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ALOGE("%s: %s", __func__, pcm_get_error(hfpmod.hfp_pcm_rx));
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ret = -EIO;
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goto exit;
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}
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}
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hfpmod.hfp_sco_tx = pcm_open(adev->snd_card,
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pcm_dev_asm_tx_id,
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PCM_IN, &pcm_config_hfp);
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if (hfpmod.hfp_sco_tx && !pcm_is_ready(hfpmod.hfp_sco_tx)) {
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ALOGE("%s: %s", __func__, pcm_get_error(hfpmod.hfp_sco_tx));
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ret = -EIO;
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goto exit;
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}
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ALOGV("%s: Opening PCM capture device card_id(%d) device_id(%d)",
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__func__, adev->snd_card, pcm_dev_tx_id);
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if (audio_extn_tfa_98xx_is_supported() == false) {
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hfpmod.hfp_pcm_tx = pcm_open(adev->snd_card,
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pcm_dev_tx_id,
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PCM_IN, &pcm_config_hfp);
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if (hfpmod.hfp_pcm_tx && !pcm_is_ready(hfpmod.hfp_pcm_tx)) {
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ALOGE("%s: %s", __func__, pcm_get_error(hfpmod.hfp_pcm_tx));
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ret = -EIO;
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goto exit;
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}
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}
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pcm_start(hfpmod.hfp_sco_rx);
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pcm_start(hfpmod.hfp_sco_tx);
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if (audio_extn_tfa_98xx_is_supported() == false) {
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pcm_start(hfpmod.hfp_pcm_rx);
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pcm_start(hfpmod.hfp_pcm_tx);
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}
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audio_extn_tfa_98xx_enable_speaker();
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hfpmod.is_hfp_running = true;
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hfp_set_volume(adev, hfpmod.hfp_volume);
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/* Set mic volume by mute status, we don't provide set mic volume in phone app, only
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provide mute and unmute. */
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audio_extn_hfp_set_mic_mute(adev, adev->mic_muted);
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ALOGD("%s: exit: status(%d)", __func__, ret);
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return 0;
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exit:
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stop_hfp(adev);
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ALOGE("%s: Problem in HFP start: status(%d)", __func__, ret);
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return ret;
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}
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static int32_t stop_hfp(struct audio_device *adev)
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{
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int32_t i, ret = 0;
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struct audio_usecase *uc_info;
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ALOGD("%s: enter", __func__);
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hfpmod.is_hfp_running = false;
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/* 1. Close the PCM devices */
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if (hfpmod.hfp_sco_rx) {
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pcm_close(hfpmod.hfp_sco_rx);
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hfpmod.hfp_sco_rx = NULL;
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}
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if (hfpmod.hfp_sco_tx) {
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pcm_close(hfpmod.hfp_sco_tx);
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hfpmod.hfp_sco_tx = NULL;
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}
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if (hfpmod.hfp_pcm_rx) {
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pcm_close(hfpmod.hfp_pcm_rx);
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hfpmod.hfp_pcm_rx = NULL;
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}
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if (hfpmod.hfp_pcm_tx) {
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pcm_close(hfpmod.hfp_pcm_tx);
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hfpmod.hfp_pcm_tx = NULL;
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}
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uc_info = get_usecase_from_list(adev, hfpmod.ucid);
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if (uc_info == NULL) {
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ALOGE("%s: Could not find the usecase (%d) in the list",
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__func__, hfpmod.ucid);
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return -EINVAL;
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}
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/* 2. Get and set stream specific mixer controls */
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disable_audio_route(adev, uc_info);
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/* 3. Disable the rx and tx devices */
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disable_snd_device(adev, uc_info->out_snd_device);
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disable_snd_device(adev, uc_info->in_snd_device);
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/* Disable the echo reference for HFP Tx */
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platform_set_echo_reference(adev, false, AUDIO_DEVICE_NONE);
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/* Set the unmute Tx mixer control */
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if (voice_get_mic_mute(adev)) {
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platform_set_mic_mute(adev->platform, false);
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ALOGD("%s: unMute HFP Tx", __func__);
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}
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adev->enable_hfp = false;
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list_remove(&uc_info->list);
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free(uc_info);
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ALOGD("%s: exit: status(%d)", __func__, ret);
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return ret;
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}
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bool audio_extn_hfp_is_active(struct audio_device *adev)
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{
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struct audio_usecase *hfp_usecase = NULL;
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hfp_usecase = get_usecase_from_list(adev, hfpmod.ucid);
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if (hfp_usecase != NULL)
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return true;
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else
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return false;
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}
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audio_usecase_t audio_extn_hfp_get_usecase()
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{
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return hfpmod.ucid;
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}
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void audio_extn_hfp_set_parameters(struct audio_device *adev, struct str_parms *parms)
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{
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int ret;
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int rate;
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int val;
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float vol;
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char value[AUDIO_PARAMATER_HFP_VALUE_MAX] = {0, };
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ret = str_parms_get_str(parms, AUDIO_PARAMETER_HFP_ENABLE, value,
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sizeof(value));
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if (ret >= 0) {
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if (!strncmp(value,"true",sizeof(value))) {
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if (!hfpmod.is_hfp_running)
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start_hfp(adev,parms);
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else
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ALOGW("%s: HFP is already active.", __func__);
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} else {
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if (hfpmod.is_hfp_running)
|
|
stop_hfp(adev);
|
|
else
|
|
ALOGW("%s: ignore STOP, HFC not active", __func__);
|
|
}
|
|
}
|
|
memset(value, 0, sizeof(value));
|
|
ret = str_parms_get_str(parms,AUDIO_PARAMETER_HFP_SET_SAMPLING_RATE, value,
|
|
sizeof(value));
|
|
if (ret >= 0) {
|
|
rate = atoi(value);
|
|
if (rate == 8000){
|
|
hfpmod.ucid = USECASE_AUDIO_HFP_SCO;
|
|
pcm_config_hfp.rate = rate;
|
|
} else if (rate == 16000){
|
|
hfpmod.ucid = USECASE_AUDIO_HFP_SCO_WB;
|
|
pcm_config_hfp.rate = rate;
|
|
} else
|
|
ALOGE("Unsupported rate..");
|
|
}
|
|
|
|
if (hfpmod.is_hfp_running) {
|
|
memset(value, 0, sizeof(value));
|
|
ret = str_parms_get_str(parms, AUDIO_PARAMETER_STREAM_ROUTING,
|
|
value, sizeof(value));
|
|
if (ret >= 0) {
|
|
val = atoi(value);
|
|
if (val > 0)
|
|
select_devices(adev, hfpmod.ucid);
|
|
}
|
|
}
|
|
|
|
memset(value, 0, sizeof(value));
|
|
ret = str_parms_get_str(parms, AUDIO_PARAMETER_HFP_VOL_MIXER_CTL,
|
|
value, sizeof(value));
|
|
if (ret >= 0) {
|
|
ALOGD("%s: mixer ctl name: %s", __func__, value);
|
|
strcpy(hfpmod.hfp_vol_mixer_ctl, value);
|
|
str_parms_del(parms, AUDIO_PARAMETER_HFP_VOL_MIXER_CTL);
|
|
}
|
|
|
|
memset(value, 0, sizeof(value));
|
|
ret = str_parms_get_str(parms, AUDIO_PARAMETER_KEY_HFP_VOLUME,
|
|
value, sizeof(value));
|
|
if (ret >= 0) {
|
|
if (sscanf(value, "%f", &vol) != 1){
|
|
ALOGE("%s: error in retrieving hfp volume", __func__);
|
|
ret = -EIO;
|
|
goto exit;
|
|
}
|
|
ALOGD("%s: set_hfp_volume usecase, Vol: [%f]", __func__, vol);
|
|
hfp_set_volume(adev, vol);
|
|
}
|
|
|
|
memset(value, 0, sizeof(value));
|
|
ret = str_parms_get_str(parms, AUDIO_PARAMETER_KEY_HFP_MIC_VOLUME,
|
|
value, sizeof(value));
|
|
if (ret >= 0) {
|
|
if (sscanf(value, "%f", &vol) != 1){
|
|
ALOGE("%s: error in retrieving hfp mic volume", __func__);
|
|
ret = -EIO;
|
|
goto exit;
|
|
}
|
|
ALOGD("%s: set_hfp_mic_volume usecase, Vol: [%f]", __func__, vol);
|
|
hfp_set_mic_volume(adev, vol);
|
|
}
|
|
|
|
exit:
|
|
ALOGV("%s Exit",__func__);
|
|
}
|