boards/esp32-lyrat: Add support for the ES8388 codec

This commit is contained in:
Lucas Saavedra Vaz
2022-11-07 17:36:22 -03:00
committed by Alan Carvalho de Assis
parent fa0ccce046
commit bcafc77cf8
11 changed files with 604 additions and 15 deletions
Binary file not shown.

After

Width:  |  Height:  |  Size: 21 KiB

@@ -126,6 +126,10 @@ between speakers and headphones is under software control instead of using
mechanical contacts that would disconnect speakers once a headphone jack is
inserted.
.. note::
The codec implementation on the LyraT board was validated using 16-bit,
44.1kHz WAV files. Other configurations might not work as expected.
SD card
=======
@@ -386,6 +390,49 @@ JTAG Header / JP7
Configurations
==============
audio
-----
This configuration uses the I2S0 peripheral and the ES8388 audio codec
present on the LyraT board to play an audio file streamed over HTTP
while connected to a Wi-Fi network.
**Simple HTTP server**
Prepare a PCM-encoded (`.wav`) audio file with 16 bits/sample (sampled at
44.1kHz). This file must be placed into a folder in a computer that could
be accessed on the same Wi-Fi network the ESP32 will be connecting to.
Python provides a simple HTTP server. `cd` to the audio file folder on the
PC and run::
$ python3 -m http.server
Serving HTTP on 0.0.0.0 port 8000 (http://0.0.0.0:8000/)
Look for your PC IP address and test playing the prepared audio on your
browser:
.. figure:: esp32-lyrat-v4.3-audio-config-file.png
:align: center
After successfully built and flashed, connect the board to the Wi-Fi network::
$ nsh> wapi psk wlan0 mypasswd 1
$ nsh> wapi essid wlan0 myssid 1
$ nsh> renew wlan0
Once connected, open NuttX's player and play the file according to its file
name and the IP address of the HTTP server (For example `tones.wav` and
`192.168.1.239:8000`, respectively)::
$ nsh> nxplayer
$ nxplayer> play http://192.168.1.239:8000/tones.wav
.. note::
The codec implementation on the LyraT board was validated using 16-bit,
44.1kHz WAV files. Other configurations might not work as expected.
nsh
---
@@ -0,0 +1,90 @@
/****************************************************************************
* boards/xtensa/esp32/common/include/esp32_es8388.h
*
* 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.
*
****************************************************************************/
#ifndef __BOARDS_XTENSA_ESP32_COMMON_INCLUDE_ESP32_ES8388_H
#define __BOARDS_XTENSA_ESP32_COMMON_INCLUDE_ESP32_ES8388_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Type Definitions
****************************************************************************/
/****************************************************************************
* Public Types
****************************************************************************/
/****************************************************************************
* Public Data
****************************************************************************/
#ifdef __cplusplus
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
/****************************************************************************
* Inline Functions
****************************************************************************/
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
/****************************************************************************
* Name: esp32_es8388_initialize
*
* Description:
* This function is called by platform-specific, setup logic to configure
* and register the ES8388 device. This function will register the driver
* as /dev/audio/pcm[x] where x is determined by the I2S port number.
*
* Input Parameters:
* i2c_port - The I2C port used for the device
* i2c_addr - The I2C address used by the device
* i2c_freq - The I2C frequency used for the device
* i2s_port - The I2S port used for the device
*
* Returned Value:
* Zero is returned on success. Otherwise, a negated errno value is
* returned to indicate the nature of the failure.
*
****************************************************************************/
int esp32_es8388_initialize(int i2c_port, uint8_t i2c_addr, int i2c_freq,
int i2s_port);
#undef EXTERN
#ifdef __cplusplus
}
#endif
#endif /* __BOARDS_XTENSA_ESP32_COMMON_INCLUDE_ESP32_ES8388_H */
+4
View File
@@ -48,6 +48,10 @@ ifeq ($(CONFIG_AUDIO_CS4344),y)
CSRCS += esp32_cs4344.c
endif
ifeq ($(CONFIG_AUDIO_ES8388),y)
CSRCS += esp32_es8388.c
endif
ifeq ($(CONFIG_I2CMULTIPLEXER_TCA9548A),y)
CSRCS += esp32_tca9548a.c
endif
@@ -37,8 +37,8 @@
#include "esp32_i2s.h"
#if defined(CONFIG_ESP32_I2S0) && !defined(CONFIG_AUDIO_CS4344) || \
defined(CONFIG_ESP32_I2S1)
#if defined(CONFIG_ESP32_I2S0) && !defined(CONFIG_AUDIO_CS4344) && \
!defined(CONFIG_AUDIO_ES8388) || defined(CONFIG_ESP32_I2S1)
/****************************************************************************
* Public Functions
@@ -111,4 +111,5 @@ int board_i2sdev_initialize(int port)
return ret;
}
#endif /* CONFIG_ESP32_I2S0 && !CONFIG_AUDIO_CS4344 || CONFIG_ESP32_I2S1 */
#endif /* CONFIG_ESP32_I2S0 && !CONFIG_AUDIO_CS4344 && \ *
* !CONFIG_AUDIO_ES8388 || CONFIG_ESP32_I2S1 */
@@ -0,0 +1,193 @@
/****************************************************************************
* boards/xtensa/esp32/common/src/esp32_es8388.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 <stdbool.h>
#include <stdio.h>
#include <debug.h>
#include <assert.h>
#include <errno.h>
#include <nuttx/irq.h>
#include <nuttx/audio/i2s.h>
#include <nuttx/audio/pcm.h>
#include <nuttx/audio/es8388.h>
#include <nuttx/i2c/i2c_master.h>
#include <nuttx/kmalloc.h>
#include <arch/board/board.h>
#include "esp32_board_i2c.h"
#include "esp32_i2c.h"
#include "esp32_i2s.h"
#if defined(CONFIG_ESP32_I2S) && defined(CONFIG_AUDIO_ES8388)
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: esp32_es8388_initialize
*
* Description:
* This function is called by platform-specific, setup logic to configure
* and register the ES8388 device. This function will register the driver
* as /dev/audio/pcm[x] where x is determined by the I2S port number.
*
* Input Parameters:
* i2c_port - The I2C port used for the device
* i2c_addr - The I2C address used by the device
* i2c_freq - The I2C frequency used for the device
* i2s_port - The I2S port used for the device
*
* Returned Value:
* Zero is returned on success. Otherwise, a negated errno value is
* returned to indicate the nature of the failure.
*
****************************************************************************/
int esp32_es8388_initialize(int i2c_port, uint8_t i2c_addr, int i2c_freq,
int i2s_port)
{
struct audio_lowerhalf_s *es8388;
struct audio_lowerhalf_s *pcm;
struct es8388_lower_s *lower;
struct i2s_dev_s *i2s;
struct i2c_master_s *i2c;
static bool initialized = false;
char devname[12];
int ret;
audinfo("i2s_port %d\ni2c_port %d, i2c_addr %d, i2c_freq %d\n",
i2s_port, i2c_port, i2c_addr, i2c_freq);
DEBUGASSERT(i2s_port >= 0 && i2s_port <= 1 && \
i2c_port >= 0 && i2c_port <= 1);
/* Have we already initialized? Since we never uninitialize we must
* prevent multiple initializations. This is necessary, for example,
* when the touchscreen example is used as a built-in application in
* NSH and can be called numerous time. It will attempt to initialize
* each time.
*/
if (!initialized)
{
/* Get an instance of the I2S interface for the ES8388 data channel */
i2s = esp32_i2sbus_initialize(i2s_port);
if (i2s == NULL)
{
auderr("ERROR: Failed to initialize I2S%d\n", i2s_port);
ret = -ENODEV;
goto errout;
}
i2c = esp32_i2cbus_initialize(i2c_port);
if (i2c == NULL)
{
auderr("ERROR: Failed to initialize I2C%d\n", i2c_port);
ret = -ENODEV;
goto errout;
}
/* Check wheter to enable a simple character driver that supports I2S
* transfers via a read() and write(). The intent of this driver is to
* support I2S testing. It is not an audio driver but does conform to
* some of the buffer management heuristics of an audio driver. It is
* not suitable for use in any real driver application in its current
* form. The i2schar driver will be initialized at /dev/i2schar0
*/
#ifdef CONFIG_AUDIO_I2SCHAR
ret = i2schar_register(i2s, 0);
if (ret < 0)
{
auderr("ERROR: i2schar_register failed: %d\n", ret);
goto errout;
}
#endif
/* Now we can use this I2S interface to initialize the ES8388 which
* will return an audio interface.
*/
lower = (FAR struct es8388_lower_s *)
kmm_zalloc(sizeof(struct es8388_lower_s));
lower->address = i2c_addr,
lower->frequency = i2c_freq,
es8388 = es8388_initialize(i2c, i2s, lower);
if (es8388 == NULL)
{
auderr("ERROR: Failed to initialize the ES8388\n");
ret = -ENODEV;
goto errout;
}
/* Now we can embed the ES8388/I2S conglomerate into a PCM decoder
* instance so that we will have a PCM front end for the the ES8388
* driver.
*/
pcm = pcm_decode_initialize(es8388);
if (pcm == NULL)
{
auderr("ERROR: Failed create the PCM decoder\n");
ret = -ENODEV;
goto errout;
}
/* Create a device name */
snprintf(devname, 12, "pcm%d", i2s_port);
/* Finally, we can register the PCM/ES8388/I2S audio device. */
ret = audio_register(devname, pcm);
if (ret < 0)
{
auderr("ERROR: Failed to register /dev/%s device: %d\n",
devname, ret);
goto errout;
}
/* Now we are initialized */
initialized = true;
}
return OK;
errout:
return ret;
}
#endif /* CONFIG_ESP32_I2S && CONFIG_AUDIO_ES8388 */
@@ -0,0 +1,127 @@
#
# This file is autogenerated: PLEASE DO NOT EDIT IT.
#
# You can use "make menuconfig" to make any modifications to the installed .config file.
# You can then do "make savedefconfig" to generate a new defconfig file that includes your
# modifications.
#
# CONFIG_ARCH_LEDS is not set
# CONFIG_ESP32_I2S0_RX is not set
# CONFIG_NDEBUG is not set
# CONFIG_NSH_ARGCAT is not set
# CONFIG_NSH_CMDOPT_HEXDUMP is not set
# CONFIG_NSH_CMDPARMS is not set
CONFIG_ALLOW_BSD_COMPONENTS=y
CONFIG_ARCH="xtensa"
CONFIG_ARCH_BOARD="esp32-lyrat"
CONFIG_ARCH_BOARD_COMMON=y
CONFIG_ARCH_BOARD_ESP32_LYRAT=y
CONFIG_ARCH_CHIP="esp32"
CONFIG_ARCH_CHIP_ESP32=y
CONFIG_ARCH_CHIP_ESP32WROVER=y
CONFIG_ARCH_INTERRUPTSTACK=4096
CONFIG_ARCH_STACKDUMP=y
CONFIG_ARCH_XTENSA=y
CONFIG_AUDIO=y
CONFIG_AUDIOUTILS_MMLPARSER_LIB=y
CONFIG_AUDIO_BUFFER_NUMBYTES=4096
CONFIG_AUDIO_ES8388=y
CONFIG_AUDIO_EXCLUDE_FFORWARD=y
CONFIG_AUDIO_EXCLUDE_TONE=y
CONFIG_AUDIO_I2S=y
CONFIG_AUDIO_I2SCHAR=y
CONFIG_AUDIO_NUM_BUFFERS=4
CONFIG_BOARDCTL_ROMDISK=y
CONFIG_BOARD_LOOPSPERMSEC=16717
CONFIG_BUILTIN=y
CONFIG_DEBUG_NOOPT=y
CONFIG_DEFAULT_TASK_STACKSIZE=4096
CONFIG_DEV_URANDOM=y
CONFIG_DRIVERS_AUDIO=y
CONFIG_DRIVERS_IEEE80211=y
CONFIG_DRIVERS_WIRELESS=y
CONFIG_ESP32_I2C0=y
CONFIG_ESP32_I2C0_SCLPIN=23
CONFIG_ESP32_I2C0_SDAPIN=18
CONFIG_ESP32_I2S0=y
CONFIG_ESP32_I2S0_BCLKPIN=5
CONFIG_ESP32_I2S0_DATA_BIT_WIDTH_16BIT=y
CONFIG_ESP32_I2S0_DOUTPIN=26
CONFIG_ESP32_I2S0_MCLK=y
CONFIG_ESP32_I2S0_WSPIN=25
CONFIG_ESP32_I2S=y
CONFIG_ESP32_SPIFLASH=y
CONFIG_ESP32_STORAGE_MTD_SIZE=0x80000
CONFIG_ESP32_UART0=y
CONFIG_ESP32_WIFI=y
CONFIG_ESP32_WIFI_SAVE_PARAM=y
CONFIG_EXAMPLES_I2SCHAR=y
CONFIG_EXAMPLES_I2SCHAR_TX=y
CONFIG_EXAMPLES_I2SCHAR_TXBUFFERS=2
CONFIG_EXAMPLES_I2SCHAR_TXSTACKSIZE=2048
CONFIG_EXAMPLES_ROMFS=y
CONFIG_FS_PROCFS=y
CONFIG_FS_ROMFS=y
CONFIG_HAVE_CXX=y
CONFIG_HAVE_CXXINITIALIZE=y
CONFIG_I2C=y
CONFIG_I2S_DMADESC_NUM=4
CONFIG_IDLETHREAD_STACKSIZE=3072
CONFIG_INIT_ENTRYPOINT="nsh_main"
CONFIG_INTELHEX_BINARY=y
CONFIG_IOB_NBUFFERS=24
CONFIG_IOB_THROTTLE=0
CONFIG_MM_CIRCBUF=y
CONFIG_MM_REGIONS=3
CONFIG_NAME_MAX=48
CONFIG_NETDB_DNSCLIENT=y
CONFIG_NETDB_DNSCLIENT_NAMESIZE=64
CONFIG_NETDEV_LATEINIT=y
CONFIG_NETDEV_PHY_IOCTL=y
CONFIG_NETDEV_WIRELESS_IOCTL=y
CONFIG_NETINIT_WAPI_ALG=1
CONFIG_NETUTILS_IPERF=y
CONFIG_NETUTILS_TELNETD=y
CONFIG_NET_BROADCAST=y
CONFIG_NET_ETH_PKTSIZE=1518
CONFIG_NET_ICMP=y
CONFIG_NET_ICMP_SOCKET=y
CONFIG_NET_NACTIVESOCKETS=32
CONFIG_NET_STATISTICS=y
CONFIG_NET_TCP=y
CONFIG_NET_TCP_DELAYED_ACK=y
CONFIG_NET_TCP_WRITE_BUFFERS=y
CONFIG_NET_UDP=y
CONFIG_NSH_ARCHINIT=y
CONFIG_NSH_BUILTIN_APPS=y
CONFIG_NSH_FILEIOSIZE=512
CONFIG_NSH_LINELEN=300
CONFIG_NSH_READLINE=y
CONFIG_NXPLAYER_HTTP_STREAMING_SUPPORT=y
CONFIG_NXPLAYER_PLAYTHREAD_STACKSIZE=4096
CONFIG_POSIX_SPAWN_DEFAULT_STACKSIZE=2048
CONFIG_PREALLOC_TIMERS=4
CONFIG_PTHREAD_MUTEX_TYPES=y
CONFIG_PTHREAD_STACK_DEFAULT=2048
CONFIG_RAM_SIZE=114688
CONFIG_RAM_START=0x20000000
CONFIG_RR_INTERVAL=200
CONFIG_SCHED_HPWORK=y
CONFIG_SCHED_HPWORKSTACKSIZE=2048
CONFIG_SCHED_LPWORK=y
CONFIG_SCHED_WAITPID=y
CONFIG_SIG_DEFAULT=y
CONFIG_SPI=y
CONFIG_START_DAY=6
CONFIG_START_MONTH=12
CONFIG_START_YEAR=2011
CONFIG_SYSTEM_DHCPC_RENEW=y
CONFIG_SYSTEM_NSH=y
CONFIG_SYSTEM_NXPLAYER=y
CONFIG_SYSTEM_PING=y
CONFIG_TELNET_CHARACTER_MODE=y
CONFIG_TLS_TASK_NELEM=4
CONFIG_UART0_SERIAL_CONSOLE=y
CONFIG_WIRELESS=y
CONFIG_WIRELESS_WAPI=y
CONFIG_WIRELESS_WAPI_CMDTOOL=y
@@ -17,10 +17,17 @@ CONFIG_ARCH_BOARD_ESP32_LYRAT=y
CONFIG_ARCH_CHIP="esp32"
CONFIG_ARCH_CHIP_ESP32=y
CONFIG_ARCH_CHIP_ESP32WROVER=y
CONFIG_ARCH_INTERRUPTSTACK=2048
CONFIG_ARCH_STACKDUMP=y
CONFIG_ARCH_XTENSA=y
CONFIG_BOARD_LOOPSPERMSEC=16717
CONFIG_BUILTIN=y
CONFIG_DEBUG_ASSERTIONS=y
CONFIG_DEBUG_FEATURES=y
CONFIG_DEBUG_FULLOPT=y
CONFIG_DEBUG_SYMBOLS=y
CONFIG_DEFAULT_TASK_STACKSIZE=4096
CONFIG_DEV_URANDOM=y
CONFIG_DRIVERS_IEEE80211=y
CONFIG_DRIVERS_WIRELESS=y
CONFIG_ESP32_SPIFLASH=y
@@ -30,28 +37,34 @@ CONFIG_ESP32_UART0=y
CONFIG_ESP32_WIFI=y
CONFIG_ESP32_WIFI_SAVE_PARAM=y
CONFIG_FS_PROCFS=y
CONFIG_HAVE_CXX=y
CONFIG_HAVE_CXXINITIALIZE=y
CONFIG_IDLETHREAD_STACKSIZE=3072
CONFIG_INIT_ENTRYPOINT="nsh_main"
CONFIG_INIT_STACKSIZE=3072
CONFIG_INTELHEX_BINARY=y
CONFIG_MM_REGIONS=3
CONFIG_NAME_MAX=48
CONFIG_NETDB_DNSCLIENT=y
CONFIG_NETDB_DNSCLIENT_NAMESIZE=64
CONFIG_NETDEV_LATEINIT=y
CONFIG_NETDEV_PHY_IOCTL=y
CONFIG_NETDEV_WIRELESS_IOCTL=y
CONFIG_NETUTILS_IPERF=y
CONFIG_NETUTILS_TELNETD=y
CONFIG_NET_BROADCAST=y
CONFIG_NET_ETH_PKTSIZE=1518
CONFIG_NET_ICMP=y
CONFIG_NET_ICMP_SOCKET=y
CONFIG_NET_NACTIVESOCKETS=32
CONFIG_NET_STATISTICS=y
CONFIG_NET_TCP=y
CONFIG_NET_TCP_DELAYED_ACK=y
CONFIG_NET_TCP_WRITE_BUFFERS=y
CONFIG_NET_UDP=y
CONFIG_NSH_ARCHINIT=y
CONFIG_NSH_BUILTIN_APPS=y
CONFIG_NSH_FILEIOSIZE=512
CONFIG_NSH_LINELEN=64
CONFIG_NSH_LINELEN=300
CONFIG_NSH_READLINE=y
CONFIG_POSIX_SPAWN_DEFAULT_STACKSIZE=2048
CONFIG_PREALLOC_TIMERS=4
CONFIG_PTHREAD_MUTEX_TYPES=y
CONFIG_RAM_SIZE=114688
@@ -62,15 +75,17 @@ CONFIG_SCHED_WAITPID=y
CONFIG_SIG_DEFAULT=y
CONFIG_SPI=y
CONFIG_SPIFFS_NAME_MAX=48
CONFIG_STACK_COLORATION=y
CONFIG_START_DAY=6
CONFIG_START_MONTH=12
CONFIG_START_YEAR=2011
CONFIG_SYSTEM_DHCPC_RENEW=y
CONFIG_SYSTEM_NSH=y
CONFIG_SYSTEM_PING=y
CONFIG_SYSTEM_STACKMONITOR=y
CONFIG_TELNET_CHARACTER_MODE=y
CONFIG_TLS_TASK_NELEM=4
CONFIG_UART0_SERIAL_CONSOLE=y
CONFIG_WIRELESS=y
CONFIG_WIRELESS_WAPI=y
CONFIG_WIRELESS_WAPI_CMDTOOL=y
CONFIG_WIRELESS_WAPI_STACKSIZE=4096
@@ -56,13 +56,14 @@
/* ES8388 CODEC */
#define ES8388_CCLK 23
#define ES8388_CDATA 18
#define ES8388_MCLK 0
#define ES8388_SCLK 5
#define ES8388_LRCK 25
#define ES8388_DSDIN 26
#define ES8388_ASDOUT 35
#define ES8388_I2C_CCLK 23 /* SCL */
#define ES8388_I2C_CDATA 18 /* SDA */
#define ES8388_I2S_MCLK 0 /* Master clock */
#define ES8388_I2S_SCLK 5 /* Audio data bit clock */
#define ES8388_I2S_LRCK 25 /* Audio data left and right clock */
#define ES8388_I2S_DSDIN 26 /* DAC audio data (to speakers) */
#define ES8388_I2S_ASDOUT 35 /* ADC audio data (from microphone) */
/* LED definitions **********************************************************/
@@ -76,4 +77,11 @@
#define BOARD_NGPIOIN 1 /* Amount of GPIO Input without Interruption */
#define BOARD_NGPIOINT 1 /* Amount of GPIO Input w/ Interruption pins */
/* Peripherals definitions **************************************************/
/* ES8388 CODEC */
#define ES8388_I2C_FREQ 400000
#define ES8388_I2C_ADDR 0x10
#endif /* __BOARDS_XTENSA_ESP32_ESP32_LYRAT_INCLUDE_BOARD_H */
@@ -39,6 +39,10 @@
#define GPIO_LED1 22
/* Audio Amplifier */
#define SPEAKER_ENABLE_GPIO 21
/* Buttons */
/* As BOOT_BUTTON shares pins with I2S and the SD card it cannot be used
@@ -92,6 +96,52 @@
int esp32_bringup(void);
/****************************************************************************
* Name: esp32_es8388_initialize
*
* Description:
* This function is called by platform-specific, setup logic to configure
* and register the ES8388 device. This function will register the driver
* as /dev/audio/pcm[x] where x is determined by the I2S port number.
*
* Input Parameters:
* i2c_port - The I2C port used for the device
* i2c_addr - The I2C address used by the device
* i2c_freq - The I2C frequency used for the device
* i2s_port - The I2S port used for the device
*
* Returned Value:
* Zero is returned on success. Otherwise, a negated errno value is
* returned to indicate the nature of the failure.
*
****************************************************************************/
int esp32_es8388_initialize(int i2c_port, uint8_t i2c_addr, int i2c_freq,
int i2s_port);
/****************************************************************************
* Name: board_i2sdev_initialize
*
* Description:
* This function is called by platform-specific, setup logic to configure
* and register the generic I2S audio driver. This function will register
* the driver as /dev/audio/pcm[x] where x is determined by the I2S port
* number.
*
* Input Parameters:
* port - The I2S port used for the device
*
* Returned Value:
* Zero is returned on success. Otherwise, a negated errno value is
* returned to indicate the nature of the failure.
*
****************************************************************************/
#if defined CONFIG_ESP32_I2S0 && !defined CONFIG_AUDIO_ES8388 || \
defined CONFIG_ESP32_I2S1
int board_i2sdev_initialize(int port);
#endif
/****************************************************************************
* Name: esp32_mmcsd_initialize
*
@@ -40,6 +40,8 @@
#include <nuttx/fs/fs.h>
#include <nuttx/himem/himem.h>
#include "esp32_i2c.h"
#include "esp32_gpio.h"
#include "esp32_partition.h"
#include <arch/board/board.h>
@@ -76,6 +78,10 @@
# include "esp32_board_i2c.h"
#endif
#ifdef CONFIG_ESP32_I2S
# include "esp32_i2s.h"
#endif
#ifdef CONFIG_SENSORS_BMP180
# include "esp32_bmp180.h"
#endif
@@ -331,6 +337,54 @@ int esp32_bringup(void)
#endif
#ifdef CONFIG_ESP32_I2S
#ifdef CONFIG_ESP32_I2S0
/* Configure I2S0 */
#ifdef CONFIG_AUDIO_ES8388
/* Configure ES8388 audio on I2C0 and I2S0 */
esp32_configgpio(SPEAKER_ENABLE_GPIO, OUTPUT);
esp32_gpiowrite(SPEAKER_ENABLE_GPIO, true);
ret = esp32_es8388_initialize(ESP32_I2C0, ES8388_I2C_ADDR,
ES8388_I2C_FREQ, ESP32_I2S0);
if (ret != OK)
{
syslog(LOG_ERR, "Failed to initialize ES8388 audio: %d\n", ret);
}
#else
/* Configure I2S generic audio on I2S0 */
ret = board_i2sdev_initialize(ESP32_I2S0);
if (ret < 0)
{
syslog(LOG_ERR, "Failed to initialize I2S%d driver: %d\n",
CONFIG_ESP32_I2S0, ret);
}
#endif /* CONFIG_AUDIO_ES8388 */
#endif /* CONFIG_ESP32_I2S0 */
#ifdef CONFIG_ESP32_I2S1
/* Configure I2S generic audio on I2S1 */
ret = board_i2sdev_initialize(ESP32_I2S1);
if (ret < 0)
{
syslog(LOG_ERR, "Failed to initialize I2S%d driver: %d\n",
CONFIG_ESP32_I2S0, ret);
}
#endif /* CONFIG_ESP32_I2S1 */
#endif /* CONFIG_ESP32_I2S */
#ifdef CONFIG_SENSORS_BMP180
/* Try to register BMP180 device in I2C0 */