337 lines
11 KiB
C
337 lines
11 KiB
C
/* 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"
|
|
|
|
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 = "Internal HFP RX Volume";
|
|
|
|
ALOGV("%s: entry", __func__);
|
|
ALOGD("%s: (%f)\n", __func__, 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);
|
|
hfpmod.hfp_volume = value;
|
|
|
|
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)
|
|
{
|
|
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));
|
|
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;
|
|
}
|
|
pcm_start(hfpmod.hfp_sco_rx);
|
|
pcm_start(hfpmod.hfp_sco_tx);
|
|
pcm_start(hfpmod.hfp_pcm_rx);
|
|
pcm_start(hfpmod.hfp_pcm_tx);
|
|
|
|
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. Get and set stream specific mixer controls */
|
|
disable_audio_route(adev, uc_info);
|
|
|
|
/* 3. 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*/
|