sergiotarxz/nuttx
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

xtensa/esp32s2: add support for the CS4344 audio codec

Browse Source 
Include i2schar and audio defconfigs for ESP32-S2-Saola-1 board.
This commit is contained in:
Tiago Medicci Serrano 2022-10-05 15:15:37 -03:00 committed by Xiang Xiao
parent 16b99ee013
commit ebf9af662e
5 changed files with 278 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
boards/xtensa/esp32s2/common/src/Make.defs
View File

@ -32,6 +32,10 @@ ifeq ($(CONFIG_ESP32S2_I2S),y)
CSRCS += esp32s2_board_i2sdev.c
endif
ifeq ($(CONFIG_AUDIO_CS4344),y)
CSRCS += esp32s2_cs4344.c
endif
DEPPATH += --dep-path src
VPATH += :src
CFLAGS += $(shell $(INCDIR) "$(CC)" $(TOPDIR)$(DELIM)arch$(DELIM)$(CONFIG_ARCH)$(DELIM)src$(DELIM)board$(DELIM)src)

160
boards/xtensa/esp32s2/common/src/esp32s2_cs4344.c Normal file
View File

@ -0,0 +1,160 @@
/****************************************************************************
* boards/xtensa/esp32s2/common/src/esp32s2_cs4344.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/cs4344.h>
#include <arch/board/board.h>
#include "esp32s2_i2s.h"
#if defined(CONFIG_ESP32S2_I2S) && defined(CONFIG_AUDIO_CS4344)
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: esp32s2_cs4344_initialize
*
* Description:
* This function is called by platform-specific, setup logic to configure
* and register the CS4344 device. This function will register the driver
* as /dev/audio/pcm[x] where x is determined by the I2S port number.
*
* Input Parameters:
* None
*
* Returned Value:
* Zero is returned on success. Otherwise, a negated errno value is
* returned to indicate the nature of the failure.
*
****************************************************************************/
int esp32s2_cs4344_initialize(void)
{
struct audio_lowerhalf_s *cs4344;
struct audio_lowerhalf_s *pcm;
struct i2s_dev_s *i2s;
static bool initialized = false;
char devname[5];
int ret;
/* Have we already initialized? Since we are already initialized we must
* prevent multiple initializations.
*/
if (!initialized)
{
/* Get an instance of the I2S interface for the CS4344 data channel */
i2s = esp32s2_i2sbus_initialize();
if (!i2s)
{
auderr("ERROR: Failed to initialize I2S0\n");
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 CS4344 which
* will return an audio interface.
*/
cs4344 = cs4344_initialize(i2s);
if (!cs4344)
{
auderr("ERROR: Failed to initialize the CS4344\n");
ret = -ENODEV;
goto errout;
}
/* No we can embed the CS4344/I2S conglomerate into a PCM decoder
* instance so that we will have a PCM front end for the the CS4344
* driver.
*/
pcm = pcm_decode_initialize(cs4344);
if (!pcm)
{
auderr("ERROR: Failed create the PCM decoder\n");
ret = -ENODEV;
goto errout;
}
/* Create a device name */
snprintf(devname, 12, "pcm0");
/* Finally, we can register the PCM/CS4344/I2S audio device.
*
* Is anyone young enough to remember Rube Goldberg?
*/
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_ESP32S2_I2S && CONFIG_AUDIO_CS4344 */

80
boards/xtensa/esp32s2/esp32s2-saola-1/configs/audio/defconfig Normal file
View File

@ -0,0 +1,80 @@
#
# 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_ESP32S2_I2S_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_NXPLAYER_INCLUDE_MEDIADIR is not set
CONFIG_ARCH="xtensa"
CONFIG_ARCH_BOARD="esp32s2-saola-1"
CONFIG_ARCH_BOARD_COMMON=y
CONFIG_ARCH_BOARD_ESP32S2_SAOLA_1=y
CONFIG_ARCH_CHIP="esp32s2"
CONFIG_ARCH_CHIP_ESP32S2=y
CONFIG_ARCH_CHIP_ESP32S2WROVER=y
CONFIG_ARCH_STACKDUMP=y
CONFIG_ARCH_XTENSA=y
CONFIG_AUDIO=y
CONFIG_AUDIO_CS4344=y
CONFIG_AUDIO_EXCLUDE_BALANCE=y
CONFIG_AUDIO_EXCLUDE_FFORWARD=y
CONFIG_AUDIO_EXCLUDE_TONE=y
CONFIG_AUDIO_EXCLUDE_VOLUME=y
CONFIG_AUDIO_I2SCHAR=y
CONFIG_AUDIO_NUM_BUFFERS=4
CONFIG_BOARDCTL_ROMDISK=y
CONFIG_BOARD_LOOPSPERMSEC=16717
CONFIG_BUILTIN=y
CONFIG_CS4344_INFLIGHT=4
CONFIG_CS4344_NUM_BUFFERS=2
CONFIG_CS4344_WORKER_STACKSIZE=4096
CONFIG_DEFAULT_TASK_STACKSIZE=4096
CONFIG_DRIVERS_AUDIO=y
CONFIG_ESP32S2_I2S=y
CONFIG_ESP32S2_I2S_DATA_BIT_WIDTH_16BIT=y
CONFIG_ESP32S2_I2S_MCLK=y
CONFIG_ESP32S2_UART0=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_I2S_DMADESC_NUM=4
CONFIG_IDLETHREAD_STACKSIZE=3072
CONFIG_INIT_ENTRYPOINT="nsh_main"
CONFIG_INTELHEX_BINARY=y
CONFIG_NSH_ARCHINIT=y
CONFIG_NSH_BUILTIN_APPS=y
CONFIG_NSH_FILEIOSIZE=512
CONFIG_NSH_LINELEN=64
CONFIG_NSH_READLINE=y
CONFIG_NXPLAYER_MAINTHREAD_STACKSIZE=2048
CONFIG_PREALLOC_TIMERS=4
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_LPWORKSTACKSIZE=2048
CONFIG_SCHED_WAITPID=y
CONFIG_START_DAY=6
CONFIG_START_MONTH=12
CONFIG_START_YEAR=2011
CONFIG_SYSTEM_NSH=y
CONFIG_SYSTEM_NSH_STACKSIZE=2048
CONFIG_SYSTEM_NXPLAYER=y
CONFIG_TASK_SPAWN_DEFAULT_STACKSIZE=2048
CONFIG_UART0_SERIAL_CONSOLE=y

23
boards/xtensa/esp32s2/esp32s2-saola-1/src/esp32s2-saola-1.h
View File

@ -170,9 +170,30 @@ int board_bmp180_initialize(int devno, int busno);
*
****************************************************************************/
#ifdef CONFIG_ESP32S2_I2S
#if defined(CONFIG_ESP32S2_I2S) && !defined(CONFIG_AUDIO_CS4344)
int board_i2sdev_initialize(void);
#endif
/****************************************************************************
* Name: esp32s2_cs4344_initialize
*
* Description:
* This function is called by platform-specific, setup logic to configure
* and register the CS4344 device. This function will register the driver
* as /dev/audio/pcm[x] where x is determined by the I2S port number.
*
* Input Parameters:
* None
*
* Returned Value:
* Zero is returned on success. Otherwise, a negated errno value is
* returned to indicate the nature of the failure.
*
****************************************************************************/
#ifdef CONFIG_AUDIO_CS4344
int esp32s2_cs4344_initialize(void);
#endif
#endif /* __ASSEMBLY__ */
#endif /* __BOARDS_XTENSA_ESP32S2_ESP32S2_SAOLA_1_SRC_ESP32S2_SAOLA_1_H */

12
boards/xtensa/esp32s2/esp32s2-saola-1/src/esp32s2_bringup.c
View File

@ -231,6 +231,17 @@ int esp32s2_bringup(void)
#ifdef CONFIG_ESP32S2_I2S
#ifdef CONFIG_AUDIO_CS4344
/* Configure CS4344 audio on I2S0 */
ret = esp32s2_cs4344_initialize();
if (ret != OK)
{
syslog(LOG_ERR, "Failed to initialize CS4344 audio: %d\n", ret);
}
#else
/* Configure I2S generic audio on I2S0 */
ret = board_i2sdev_initialize();
@ -238,6 +249,7 @@ int esp32s2_bringup(void)
{
syslog(LOG_ERR, "Failed to initialize I2S0 driver: %d\n", ret);
}
#endif /* CONFIG_AUDIO_CS4344 */
#endif /* CONFIG_ESP32S2_I2S */