nuttx/boards/arm/cxd56xx/drivers/audio/cxd56_audio_volume.c
Xiang Xiao 6783051aed Fix the wrong comment banner
"Private Type"->"Private Types"

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2023-12-03 17:50:35 +01:00

269 lines
6.6 KiB
C

/****************************************************************************
* boards/arm/cxd56xx/drivers/audio/cxd56_audio_volume.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <nuttx/arch.h>
#include <nuttx/signal.h>
#include "cxd56_audio_config.h"
#include "cxd56_audio_ac_reg.h"
#include "cxd56_audio_analog.h"
#include "cxd56_audio_volume.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* Number of volume device. */
#define VOLUME_NUM 3
/* Maximum value. */
#define VOLUME_MAX 120
/* Minimum value. */
#define VOLUME_MIN -1020
/* Mute volume. */
#define VOLUME_MUTE -1025
#define MUTE_BIT_API 0x01
#define MUTE_BIT_FADE 0x02
#define MUTE_VOL_REG 0x33
#define VOL_WAIT_TIME 20
#define VOL_TO_REG(vol) (((vol) / 5) & 0xff)
#define VOL_MUTE_TIME(vol, n_cycle) \
(((VOL_TO_REG(vol) - MUTE_VOL_REG) & 0xff) * (n_cycle + 1) * 4 / 48 * 1000)
/****************************************************************************
* Private Types
****************************************************************************/
struct set_vol_prm_s
{
int16_t hold_vol;
uint8_t mute_bit;
};
/****************************************************************************
* Private Data
****************************************************************************/
static struct set_vol_prm_s g_volparam[VOLUME_NUM] =
{
{VOLUME_MUTE, MUTE_BIT_API},
{VOLUME_MUTE, MUTE_BIT_API},
{VOLUME_MUTE, MUTE_BIT_API}
};
/****************************************************************************
* Private Functions
****************************************************************************/
static CXD56_AUDIO_ECODE set_mute(cxd56_audio_volid_t id,
bool wait,
uint8_t type)
{
uint32_t waittime = 0;
waittime = VOL_MUTE_TIME(g_volparam[id].hold_vol, 1);
if (g_volparam[id].mute_bit == 0)
{
switch (id)
{
case CXD56_AUDIO_VOLID_MIXER_IN1:
cxd56_audio_ac_reg_set_vol_sdin1(MUTE_VOL_REG);
break;
case CXD56_AUDIO_VOLID_MIXER_IN2:
cxd56_audio_ac_reg_set_vol_sdin2(MUTE_VOL_REG);
break;
default:
cxd56_audio_ac_reg_set_vol_dac(MUTE_VOL_REG);
break;
}
}
if (wait)
{
nxsig_usleep(waittime);
}
g_volparam[id].mute_bit |= type;
if (g_volparam[CXD56_AUDIO_VOLID_MIXER_OUT].mute_bit != 0)
{
CXD56_AUDIO_ECODE ret = cxd56_audio_analog_disable_output();
if (ret != CXD56_AUDIO_ECODE_OK)
{
return ret;
}
}
return CXD56_AUDIO_ECODE_OK;
}
static CXD56_AUDIO_ECODE set_unmute(cxd56_audio_volid_t id,
bool wait,
uint8_t type)
{
uint32_t waittime = 0;
g_volparam[id].mute_bit &= ~type;
if (g_volparam[CXD56_AUDIO_VOLID_MIXER_OUT].mute_bit == 0)
{
CXD56_AUDIO_ECODE ret = cxd56_audio_analog_enable_output();
if (ret != CXD56_AUDIO_ECODE_OK)
{
return ret;
}
}
if (g_volparam[id].mute_bit == 0)
{
if (type == MUTE_BIT_API)
{
waittime = VOL_WAIT_TIME;
}
else
{
/* fade */
waittime = VOL_MUTE_TIME(g_volparam[id].hold_vol, 1);
}
uint32_t vol = VOL_TO_REG(g_volparam[id].hold_vol);
switch (id)
{
case CXD56_AUDIO_VOLID_MIXER_IN1:
cxd56_audio_ac_reg_set_vol_sdin1(vol);
break;
case CXD56_AUDIO_VOLID_MIXER_IN2:
cxd56_audio_ac_reg_set_vol_sdin2(vol);
break;
default:
cxd56_audio_ac_reg_set_vol_dac(vol);
break;
}
if (wait)
{
nxsig_usleep(waittime);
}
}
return CXD56_AUDIO_ECODE_OK;
}
/****************************************************************************
* Public Functions
****************************************************************************/
CXD56_AUDIO_ECODE cxd56_audio_volume_set(cxd56_audio_volid_t id,
int16_t vol)
{
if (id >= VOLUME_NUM)
{
return CXD56_AUDIO_ECODE_VOL_ID;
}
if (VOLUME_MIN > vol)
{
if (VOLUME_MUTE != vol)
{
return CXD56_AUDIO_ECODE_VOL_MIN;
}
}
if (VOLUME_MAX < vol)
{
return CXD56_AUDIO_ECODE_VOL_MAX;
}
g_volparam[id].hold_vol = vol;
set_unmute(id, true, MUTE_BIT_API);
return CXD56_AUDIO_ECODE_OK;
}
CXD56_AUDIO_ECODE cxd56_audio_volume_mute(cxd56_audio_volid_t id)
{
if (id >= VOLUME_NUM)
{
return CXD56_AUDIO_ECODE_VOL_ID;
}
set_mute(id, true, MUTE_BIT_API);
return CXD56_AUDIO_ECODE_OK;
}
CXD56_AUDIO_ECODE cxd56_audio_volume_unmute(cxd56_audio_volid_t id)
{
if (id >= VOLUME_NUM)
{
return CXD56_AUDIO_ECODE_VOL_ID;
}
set_unmute(id, true, MUTE_BIT_API);
return CXD56_AUDIO_ECODE_OK;
}
CXD56_AUDIO_ECODE cxd56_audio_volume_mute_fade(cxd56_audio_volid_t id,
bool wait)
{
if (id >= VOLUME_NUM)
{
return CXD56_AUDIO_ECODE_VOL_ID;
}
set_mute(id, wait, MUTE_BIT_FADE);
return CXD56_AUDIO_ECODE_OK;
}
CXD56_AUDIO_ECODE cxd56_audio_volume_unmute_fade(cxd56_audio_volid_t id,
bool wait)
{
if (id >= VOLUME_NUM)
{
return CXD56_AUDIO_ECODE_VOL_ID;
}
set_unmute(id, wait, MUTE_BIT_FADE);
return CXD56_AUDIO_ECODE_OK;
}