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nuttx/boards/arm/cxd56xx/common/src/cxd56_audio.c

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/****************************************************************************
* boards/arm/cxd56xx/common/src/cxd56_audio.c
*
* Copyright 2018 Sony Semiconductor Solutions Corporation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
* 3. Neither the name of Sony Semiconductor Solutions Corporation 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 BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/types.h>
#include <stdint.h>
#include <stdbool.h>
#include <errno.h>
#include <assert.h>
#include <debug.h>
#include <nuttx/arch.h>
#include <nuttx/signal.h>
#include <arch/chip/audio.h>
#include "chip.h"
#include "up_arch.h"
#include <arch/board/board.h>
#include "cxd56_pmic.h"
#include "cxd56_gpio.h"
#include "cxd56_pinconfig.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* Check if the following are defined in the board.h */
#ifndef CXD5247_XRST
# error "CXD5247_XRST must be defined in board.h !!"
#endif
#ifndef CXD5247_AVDD
# error "CXD5247_AVDD must be defined in board.h !!"
#endif
#ifndef CXD5247_DVDD
# error "CXD5247_DVDD must be defined in board.h !!"
#endif
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: check_pin_i2s_mode
*
* Description:
* Check if the pin is I2S.
*
****************************************************************************/
static bool check_pin_i2s_mode(uint32_t pin)
{
bool res = false;
cxd56_pin_status_t pstat;
if (cxd56_pin_status(pin, &pstat) >= 0)
{
if (pstat.mode == 1)
{
res = true;
}
}
return res;
}
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: board_audio_power_control
*
* Description:
* Power on/off the audio device on the board.
*
****************************************************************************/
bool board_audio_power_control(bool en)
{
if (en)
{
/* Enable I2S pin. */
cxd56_audio_en_i2s_io();
/* Enable speaker output. */
cxd56_audio_set_spout(true);
/* Power on Audio driver */
if (cxd56_audio_poweron() != 0)
{
return false;
}
/* Enable BaseBand driver output */
if (cxd56_audio_en_output() != 0)
{
return false;
}
/* Cancel output mute. */
board_external_amp_mute_control(false);
}
else
{
/* Set output mute. */
board_external_amp_mute_control(true);
/* Disable speaker output. */
cxd56_audio_set_spout(false);
/* Disable I2S pin. */
cxd56_audio_dis_i2s_io();
/* Power off Audio driver */
if (cxd56_audio_dis_output() != 0)
{
return false;
}
/* Disable BaseBand driver output */
if (cxd56_audio_poweroff() != 0)
{
return false;
}
}
return true;
}
/****************************************************************************
* Name: board_aca_power_control
*
* Description:
* Power on/off the Aca device on the board.
*
****************************************************************************/
int board_aca_power_control(int target, bool en)
{
int ret = 0;
static int first = 1;
static bool avdd_on = false;
static bool dvdd_on = false;
if (first)
{
/* gpio configuration (output disabled yet) */
cxd56_gpio_config(CXD5247_XRST, false);
first = 0;
}
if (en)
{
if (!dvdd_on && (target & CXD5247_DVDD))
{
/* reset assert */
cxd56_gpio_write(CXD5247_XRST, false);
}
/* power on */
if (!avdd_on && (target & CXD5247_AVDD))
{
board_power_control(POWER_AUDIO_AVDD, true);
avdd_on = true;
}
if (!dvdd_on && (target & CXD5247_DVDD))
{
board_power_control(POWER_AUDIO_DVDD, true);
dvdd_on = true;
/* reset release */
cxd56_gpio_write(CXD5247_XRST, true);
}
}
else
{
if (dvdd_on && (target & CXD5247_DVDD))
{
/* reset assert */
cxd56_gpio_write(CXD5247_XRST, false);
}
/* power off */
if (avdd_on && (target & CXD5247_AVDD))
{
board_power_control(POWER_AUDIO_AVDD, false);
avdd_on = false;
}
if (dvdd_on && (target & CXD5247_DVDD))
{
board_power_control(POWER_AUDIO_DVDD, false);
dvdd_on = false;
}
}
return ret;
}
/****************************************************************************
* Name: board_aca_power_monitor
*
* Description:
* Get status of Power on/off the Aca device on the board.
*
****************************************************************************/
bool board_aca_power_monitor(int target)
{
bool avdd_stat = true;
bool dvdd_stat = true;
if (target & CXD5247_AVDD)
{
avdd_stat = board_power_monitor(POWER_AUDIO_AVDD);
}
if (target & CXD5247_DVDD)
{
dvdd_stat = board_power_monitor(POWER_AUDIO_DVDD);
}
return avdd_stat && dvdd_stat;
}
#define MUTE_OFF_DELAY (1250 * 1000) /* ms */
#define MUTE_ON_DELAY (150 * 1000) /* ms */
/****************************************************************************
* Name: board_external_amp_mute_control
*
* Description:
* External Amp. Mute on/off.
* true: Mute on
* false: Mute off
*
****************************************************************************/
int board_external_amp_mute_control(bool en)
{
int ret = 0;
if (en)
{
/* Mute ON */
ret = board_power_control(POWER_AUDIO_MUTE, false);
nxsig_usleep(MUTE_ON_DELAY);
}
else
{
/* Mute OFF */
nxsig_usleep(MUTE_OFF_DELAY);
ret = board_power_control(POWER_AUDIO_MUTE, true);
}
return ret;
}
/****************************************************************************
* Name: board_external_amp_mute_monitor
*
* Description:
* Get External Amp. Mute status.
* true: Mute on
* false: Mute off
*
****************************************************************************/
bool board_external_amp_mute_monitor(void)
{
bool mute = board_power_monitor(POWER_AUDIO_MUTE);
return !mute;
}
/****************************************************************************
* Name: board_audio_i2s_enable
*
* Description:
* Enable I2S on the board.
*
****************************************************************************/
void board_audio_i2s_enable(void)
{
#ifdef CONFIG_CXD56_I2S0
/* Select I2S0_BCK, I2S0_LRCK, I2S0_DATA_IN, I2S0_DATA_OUT. */
# ifdef CONFIG_CXD56_AUDIO_I2S_DEVICE_1_MASTER
/* I2S0 Master. */
# ifdef CONFIG_CXD56_AUDIO_I2S_LOWEMI_2MA
CXD56_PIN_CONFIGS(PINCONFS_I2S0_M_NORM);
# else
CXD56_PIN_CONFIGS(PINCONFS_I2S0_M_HIGH);
# endif
# else
/* I2S0 Slave. */
# ifdef CONFIG_CXD56_AUDIO_I2S_LOWEMI_2MA
CXD56_PIN_CONFIGS(PINCONFS_I2S0_S_NORM);
# else
CXD56_PIN_CONFIGS(PINCONFS_I2S0_S_HIGH);
# endif
# endif /* CONFIG_CXD56_AUDIO_I2S_DEVICE_1_MASTER */
#endif /* CONFIG_CXD56_I2S0 */
#ifdef CONFIG_CXD56_I2S1
/* Select I2S1_BCK, I2S1_LRCK, I2S1_DATA_IN, I2S1_DATA_OUT. */
# ifdef CONFIG_CXD56_AUDIO_I2S_DEVICE_2_MASTER
/* I2S1 Master. */
# ifdef CONFIG_CXD56_AUDIO_I2S_LOWEMI_2MA
CXD56_PIN_CONFIGS(PINCONFS_I2S1_M_NORM);
# else
CXD56_PIN_CONFIGS(PINCONFS_I2S1_M_HIGH);
# endif
# else
/* I2S1 Slave. */
# ifdef CONFIG_CXD56_AUDIO_I2S_LOWEMI_2MA
CXD56_PIN_CONFIGS(PINCONFS_I2S1_S_NORM);
# else
CXD56_PIN_CONFIGS(PINCONFS_I2S1_S_HIGH);
# endif
# endif /* CONFIG_CXD56_AUDIO_I2S_DEVICE_2_MASTER */
#endif /* CONFIG_CXD56_I2S1 */
}
/****************************************************************************
* Name: board_audio_i2s_disable
*
* Description:
* Dsiable I2S on the board.
*
****************************************************************************/
void board_audio_i2s_disable(void)
{
#ifdef CONFIG_CXD56_I2S0
/* Select GPIO(P1v_00/01/02/03) */
if (check_pin_i2s_mode(PIN_I2S0_BCK))
{
CXD56_PIN_CONFIGS(PINCONFS_I2S0_GPIO);
}
#endif
#ifdef CONFIG_CXD56_I2S1
/* Select GPIO(P1v_00/01/02/03) */
if (check_pin_i2s_mode(PIN_I2S1_BCK))
{
CXD56_PIN_CONFIGS(PINCONFS_I2S1_GPIO);
}
#endif
}
/****************************************************************************
* Name: board_audio_initialize
*
* Description:
* Initialize audio I/O on the board.
*
****************************************************************************/
void board_audio_initialize(void)
{
/* Select MCLK. */
#ifndef CONFIG_CXD56_AUDIO_ANALOG_NONE
CXD56_PIN_CONFIGS(PINCONFS_MCLK);
#endif
/* Select PDM_CLK, PDM_IN, PDM_OUT. */
#ifdef CONFIG_CXD56_AUDIO_PDM_LOWEMI_2MA
CXD56_PIN_CONFIGS(PINCONFS_PDM_NORM);
#else
CXD56_PIN_CONFIGS(PINCONFS_PDM_HIGH);
#endif
}
/****************************************************************************
* Name: board_audio_finalize
*
* Description:
* Finalize audio I/O on the board.
*
****************************************************************************/
void board_audio_finalize(void)
{
/* Select GPIO(P1x_00). */
#ifndef CONFIG_CXD56_AUDIO_ANALOG_NONE
CXD56_PIN_CONFIGS(PINCONFS_MCLK_GPIO);
#endif
/* Select GPIO(P1y_00/01/02). */
CXD56_PIN_CONFIGS(PINCONFS_PDM_GPIO);
/* Disable I2S. */
board_audio_i2s_disable();
}
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