| /* hfp.c |
| Copyright (c) 2012-2014, The Linux Foundation. All rights reserved. |
| |
| Redistribution and use in source and binary forms, with or without |
| modification, are permitted provided that the following conditions are |
| met: |
| * Redistributions of source code must retain the above copyright |
| notice, this list of conditions and the following disclaimer. |
| * Redistributions in binary form must reproduce the above |
| copyright notice, this list of conditions and the following |
| disclaimer in the documentation and/or other materials provided |
| with the distribution. |
| * Neither the name of The Linux Foundation nor the names of its |
| contributors may be used to endorse or promote products derived |
| from this software without specific prior written permission. |
| |
| THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED |
| WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT |
| ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS |
| BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
| BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
| OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN |
| IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.*/ |
| |
| #define LOG_TAG "audio_hw_hfp" |
| /*#define LOG_NDEBUG 0*/ |
| #define LOG_NDDEBUG 0 |
| |
| #include <errno.h> |
| #include <math.h> |
| #include <cutils/log.h> |
| |
| #include "audio_hw.h" |
| #include "platform.h" |
| #include "platform_api.h" |
| #include <stdlib.h> |
| #include <cutils/str_parms.h> |
| |
| #ifdef HFP_ENABLED |
| #define AUDIO_PARAMETER_HFP_ENABLE "hfp_enable" |
| #define AUDIO_PARAMETER_HFP_SET_SAMPLING_RATE "hfp_set_sampling_rate" |
| #define AUDIO_PARAMETER_KEY_HFP_VOLUME "hfp_volume" |
| |
| #ifdef PLATFORM_MSM8994 |
| #define HFP_RX_VOLUME "SEC AUXPCM LOOPBACK Volume" |
| #else |
| #define HFP_RX_VOLUME "Internal HFP RX Volume" |
| #endif |
| |
| static int32_t start_hfp(struct audio_device *adev, |
| struct str_parms *parms); |
| |
| static int32_t stop_hfp(struct audio_device *adev); |
| |
| struct hfp_module { |
| struct pcm *hfp_sco_rx; |
| struct pcm *hfp_sco_tx; |
| struct pcm *hfp_pcm_rx; |
| struct pcm *hfp_pcm_tx; |
| bool is_hfp_running; |
| float hfp_volume; |
| audio_usecase_t ucid; |
| }; |
| |
| static struct hfp_module hfpmod = { |
| .hfp_sco_rx = NULL, |
| .hfp_sco_tx = NULL, |
| .hfp_pcm_rx = NULL, |
| .hfp_pcm_tx = NULL, |
| .hfp_volume = 0, |
| .is_hfp_running = 0, |
| .ucid = USECASE_AUDIO_HFP_SCO, |
| }; |
| static struct pcm_config pcm_config_hfp = { |
| .channels = 1, |
| .rate = 8000, |
| .period_size = 240, |
| .period_count = 2, |
| .format = PCM_FORMAT_S16_LE, |
| .start_threshold = 0, |
| .stop_threshold = INT_MAX, |
| .avail_min = 0, |
| }; |
| |
| static int32_t hfp_set_volume(struct audio_device *adev, float value) |
| { |
| int32_t vol, ret = 0; |
| struct mixer_ctl *ctl; |
| const char *mixer_ctl_name = HFP_RX_VOLUME; |
| |
| ALOGV("%s: entry", __func__); |
| ALOGD("%s: (%f)\n", __func__, value); |
| |
| hfpmod.hfp_volume = value; |
| if (value < 0.0) { |
| ALOGW("%s: (%f) Under 0.0, assuming 0.0\n", __func__, value); |
| value = 0.0; |
| } else { |
| value = ((value > 15.000000) ? 1.0 : (value / 15)); |
| ALOGW("%s: Volume brought with in range (%f)\n", __func__, value); |
| } |
| vol = lrint((value * 0x2000) + 0.5); |
| |
| if (!hfpmod.is_hfp_running) { |
| ALOGV("%s: HFP not active, ignoring set_hfp_volume call", __func__); |
| return -EIO; |
| } |
| |
| ALOGD("%s: Setting HFP volume to %d \n", __func__, vol); |
| ctl = mixer_get_ctl_by_name(adev->mixer, mixer_ctl_name); |
| if (!ctl) { |
| ALOGE("%s: Could not get ctl for mixer cmd - %s", |
| __func__, mixer_ctl_name); |
| return -EINVAL; |
| } |
| if(mixer_ctl_set_value(ctl, 0, vol) < 0) { |
| ALOGE("%s: Couldn't set HFP Volume: [%d]", __func__, vol); |
| return -EINVAL; |
| } |
| |
| ALOGV("%s: exit", __func__); |
| return ret; |
| } |
| |
| static int32_t start_hfp(struct audio_device *adev, |
| struct str_parms *parms __unused) |
| { |
| int32_t i, ret = 0; |
| struct audio_usecase *uc_info; |
| int32_t pcm_dev_rx_id, pcm_dev_tx_id, pcm_dev_asm_rx_id, pcm_dev_asm_tx_id; |
| |
| ALOGD("%s: enter", __func__); |
| |
| uc_info = (struct audio_usecase *)calloc(1, sizeof(struct audio_usecase)); |
| |
| if (!uc_info) |
| return -ENOMEM; |
| |
| uc_info->id = hfpmod.ucid; |
| uc_info->type = PCM_HFP_CALL; |
| uc_info->stream.out = adev->primary_output; |
| uc_info->devices = adev->primary_output->devices; |
| uc_info->in_snd_device = SND_DEVICE_NONE; |
| uc_info->out_snd_device = SND_DEVICE_NONE; |
| |
| list_add_tail(&adev->usecase_list, &uc_info->list); |
| |
| select_devices(adev, hfpmod.ucid); |
| |
| pcm_dev_rx_id = platform_get_pcm_device_id(uc_info->id, PCM_PLAYBACK); |
| pcm_dev_tx_id = platform_get_pcm_device_id(uc_info->id, PCM_CAPTURE); |
| pcm_dev_asm_rx_id = HFP_ASM_RX_TX; |
| pcm_dev_asm_tx_id = HFP_ASM_RX_TX; |
| if (pcm_dev_rx_id < 0 || pcm_dev_tx_id < 0 || |
| pcm_dev_asm_rx_id < 0 || pcm_dev_asm_tx_id < 0 ) { |
| ALOGE("%s: Invalid PCM devices (rx: %d tx: %d asm: rx tx %d) for the usecase(%d)", |
| __func__, pcm_dev_rx_id, pcm_dev_tx_id, pcm_dev_asm_rx_id, uc_info->id); |
| ret = -EIO; |
| goto exit; |
| } |
| |
| ALOGV("%s: HFP PCM devices (hfp rx tx: %d pcm rx tx: %d) for the usecase(%d)", |
| __func__, pcm_dev_rx_id, pcm_dev_tx_id, uc_info->id); |
| |
| ALOGV("%s: Opening PCM playback device card_id(%d) device_id(%d)", |
| __func__, adev->snd_card, pcm_dev_rx_id); |
| hfpmod.hfp_sco_rx = pcm_open(adev->snd_card, |
| pcm_dev_asm_rx_id, |
| PCM_OUT, &pcm_config_hfp); |
| if (hfpmod.hfp_sco_rx && !pcm_is_ready(hfpmod.hfp_sco_rx)) { |
| ALOGE("%s: %s", __func__, pcm_get_error(hfpmod.hfp_sco_rx)); |
| ret = -EIO; |
| goto exit; |
| } |
| ALOGD("%s: Opening PCM capture device card_id(%d) device_id(%d)", |
| __func__, adev->snd_card, pcm_dev_tx_id); |
| hfpmod.hfp_pcm_rx = pcm_open(adev->snd_card, |
| pcm_dev_rx_id, |
| PCM_OUT, &pcm_config_hfp); |
| if (hfpmod.hfp_pcm_rx && !pcm_is_ready(hfpmod.hfp_pcm_rx)) { |
| ALOGE("%s: %s", __func__, pcm_get_error(hfpmod.hfp_pcm_rx)); |
| ret = -EIO; |
| goto exit; |
| } |
| hfpmod.hfp_sco_tx = pcm_open(adev->snd_card, |
| pcm_dev_asm_tx_id, |
| PCM_IN, &pcm_config_hfp); |
| if (hfpmod.hfp_sco_tx && !pcm_is_ready(hfpmod.hfp_sco_tx)) { |
| ALOGE("%s: %s", __func__, pcm_get_error(hfpmod.hfp_sco_tx)); |
| ret = -EIO; |
| goto exit; |
| } |
| ALOGV("%s: Opening PCM capture device card_id(%d) device_id(%d)", |
| __func__, adev->snd_card, pcm_dev_tx_id); |
| hfpmod.hfp_pcm_tx = pcm_open(adev->snd_card, |
| pcm_dev_tx_id, |
| PCM_IN, &pcm_config_hfp); |
| if (hfpmod.hfp_pcm_tx && !pcm_is_ready(hfpmod.hfp_pcm_tx)) { |
| ALOGE("%s: %s", __func__, pcm_get_error(hfpmod.hfp_pcm_tx)); |
| ret = -EIO; |
| goto exit; |
| } |
| if (pcm_start(hfpmod.hfp_sco_rx) < 0) { |
| ALOGE("%s: pcm start for hfp sco rx failed", __func__); |
| ret = -EINVAL; |
| goto exit; |
| } |
| if (pcm_start(hfpmod.hfp_sco_tx) < 0) { |
| ALOGE("%s: pcm start for hfp sco tx failed", __func__); |
| ret = -EINVAL; |
| goto exit; |
| } |
| if (pcm_start(hfpmod.hfp_pcm_rx) < 0) { |
| ALOGE("%s: pcm start for hfp pcm rx failed", __func__); |
| ret = -EINVAL; |
| goto exit; |
| } |
| if (pcm_start(hfpmod.hfp_pcm_tx) < 0) { |
| ALOGE("%s: pcm start for hfp pcm tx failed", __func__); |
| ret = -EINVAL; |
| goto exit; |
| } |
| |
| hfpmod.is_hfp_running = true; |
| hfp_set_volume(adev, hfpmod.hfp_volume); |
| |
| ALOGD("%s: exit: status(%d)", __func__, ret); |
| return 0; |
| |
| exit: |
| stop_hfp(adev); |
| ALOGE("%s: Problem in HFP start: status(%d)", __func__, ret); |
| return ret; |
| } |
| |
| static int32_t stop_hfp(struct audio_device *adev) |
| { |
| int32_t i, ret = 0; |
| struct audio_usecase *uc_info; |
| |
| ALOGD("%s: enter", __func__); |
| hfpmod.is_hfp_running = false; |
| |
| /* 1. Close the PCM devices */ |
| if (hfpmod.hfp_sco_rx) { |
| pcm_close(hfpmod.hfp_sco_rx); |
| hfpmod.hfp_sco_rx = NULL; |
| } |
| if (hfpmod.hfp_sco_tx) { |
| pcm_close(hfpmod.hfp_sco_tx); |
| hfpmod.hfp_sco_tx = NULL; |
| } |
| if (hfpmod.hfp_pcm_rx) { |
| pcm_close(hfpmod.hfp_pcm_rx); |
| hfpmod.hfp_pcm_rx = NULL; |
| } |
| if (hfpmod.hfp_pcm_tx) { |
| pcm_close(hfpmod.hfp_pcm_tx); |
| hfpmod.hfp_pcm_tx = NULL; |
| } |
| |
| uc_info = get_usecase_from_list(adev, hfpmod.ucid); |
| if (uc_info == NULL) { |
| ALOGE("%s: Could not find the usecase (%d) in the list", |
| __func__, hfpmod.ucid); |
| return -EINVAL; |
| } |
| |
| /* 2. Disable echo reference while stopping hfp */ |
| platform_set_echo_reference(adev->platform, false); |
| |
| /* 3. Get and set stream specific mixer controls */ |
| disable_audio_route(adev, uc_info); |
| |
| /* 4. Disable the rx and tx devices */ |
| disable_snd_device(adev, uc_info->out_snd_device); |
| disable_snd_device(adev, uc_info->in_snd_device); |
| |
| list_remove(&uc_info->list); |
| free(uc_info); |
| |
| ALOGD("%s: exit: status(%d)", __func__, ret); |
| return ret; |
| } |
| |
| bool audio_extn_hfp_is_active(struct audio_device *adev) |
| { |
| struct audio_usecase *hfp_usecase = NULL; |
| hfp_usecase = get_usecase_from_list(adev, hfpmod.ucid); |
| |
| if (hfp_usecase != NULL) |
| return true; |
| else |
| return false; |
| } |
| |
| audio_usecase_t audio_extn_hfp_get_usecase() |
| { |
| return hfpmod.ucid; |
| } |
| |
| void audio_extn_hfp_set_parameters(struct audio_device *adev, struct str_parms *parms) |
| { |
| int ret; |
| int rate; |
| int val; |
| float vol; |
| char value[32]={0}; |
| |
| ret = str_parms_get_str(parms, AUDIO_PARAMETER_HFP_ENABLE, value, |
| sizeof(value)); |
| if (ret >= 0) { |
| if (!strncmp(value,"true",sizeof(value))) |
| ret = start_hfp(adev,parms); |
| else |
| stop_hfp(adev); |
| } |
| 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_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); |
| } |
| exit: |
| ALOGV("%s Exit",__func__); |
| } |
| #endif /*HFP_ENABLED*/ |
