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esp32/i2s: implement I2S receiver module

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- Add ioctl method to enable allocating the apb buffer.
- Add RX methods to set data width, sample rate, channels and
for receiving data from the I2S peripheral.
- Update the i2schar defconfig to enable the I2S receiver.
- Add nxlooper defconfig to enable testing the RX interface.
- Add specific bindings on ESP32 bringup to enable nxlooper
to work without the need of any specific codec.
This commit is contained in:
Tiago Medicci Serrano 2022-11-10 16:40:42 -03:00 committed by Alan Carvalho de Assis
parent 7ae4152f47
commit 3b5ab27893
8 changed files with 1592 additions and 284 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
arch/xtensa/src/esp32/Kconfig
View File

@ -369,9 +369,9 @@ config ESP32_I2S0_WSPIN
range 0 39 if ESP32_I2S0_ROLE_SLAVE
config ESP32_I2S0_DINPIN
int "I2S0 DOUT pin"
int "I2S0 DIN pin"
depends on ESP32_I2S0_RX
default 12
default 19
range 0 39
config ESP32_I2S0_DOUTPIN
@ -471,7 +471,6 @@ endchoice
config ESP32_I2S1_DATA_BIT_WIDTH
int
default 16
default 8 if ESP32_I2S1_DATA_BIT_WIDTH_8BIT
default 16 if ESP32_I2S1_DATA_BIT_WIDTH_16BIT
default 24 if ESP32_I2S1_DATA_BIT_WIDTH_24BIT
@ -488,26 +487,26 @@ config ESP32_I2S1_SAMPLE_RATE
config ESP32_I2S1_BCLKPIN
int "I2S1 BCLK pin"
default 19
default 22
range 0 33 if ESP32_I2S1_ROLE_MASTER
range 0 39 if ESP32_I2S1_ROLE_SLAVE
config ESP32_I2S1_WSPIN
int "I2S1 WS pin"
default 18
default 23
range 0 33 if ESP32_I2S1_ROLE_MASTER
range 0 39 if ESP32_I2S1_ROLE_SLAVE
config ESP32_I2S1_DOUTPIN
int "I2S1 DOUT pin"
config ESP32_I2S1_DINPIN
int "I2S1 DIN pin"
depends on ESP32_I2S1_RX
default 17
default 26
range 0 39
config ESP32_I2S1_DOUTPIN
int "I2S1 DOUT pin"
depends on ESP32_I2S1_TX
default 16
default 25
range 0 33
config ESP32_I2S1_MCLK

1247
arch/xtensa/src/esp32/esp32_i2s.c
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File diff suppressed because it is too large Load Diff

5
arch/xtensa/src/esp32/esp32_i2s.h
View File

@ -41,13 +41,8 @@ extern "C"
#ifdef CONFIG_ESP32_I2S
#ifdef CONFIG_ESP32_I2S0
#define ESP32_I2S0 0
#endif /* CONFIG_ESP32_I2S0 */
#ifdef CONFIG_ESP32_I2S1
#define ESP32_I2S1 1
#endif /* CONFIG_ESP32_I2S1 */
/****************************************************************************
* Public Function Prototypes

67
boards/xtensa/esp32/common/src/esp32_board_i2sdev.c
View File

@ -37,8 +37,8 @@
#include "esp32_i2s.h"
#if defined(CONFIG_ESP32_I2S0) && !defined(CONFIG_AUDIO_CS4344) && \
!defined(CONFIG_AUDIO_ES8388) || defined(CONFIG_ESP32_I2S1)
#if defined(CONFIG_ESP32_I2S0) && !defined(CONFIG_AUDIO_CS4344) || \
defined(CONFIG_ESP32_I2S1)
/****************************************************************************
* Public Functions
@ -55,6 +55,8 @@
*
* Input Parameters:
* port - The I2S port used for the device
* enable_tx - Register device as TX if true
* enable_rx - Register device as RX if true
*
* Returned Value:
* Zero is returned on success. Otherwise, a negated errno value is
@ -62,12 +64,11 @@
*
****************************************************************************/
int board_i2sdev_initialize(int port)
int board_i2sdev_initialize(int port, bool enable_tx, bool enable_rx)
{
struct audio_lowerhalf_s *audio_i2s;
struct audio_lowerhalf_s *pcm;
struct i2s_dev_s *i2s;
char devname[12];
char devname[8];
int ret;
ainfo("Initializing I2S\n");
@ -75,7 +76,7 @@ int board_i2sdev_initialize(int port)
i2s = esp32_i2sbus_initialize(port);
#ifdef CONFIG_AUDIO_I2SCHAR
ret = i2schar_register(i2s, 0);
ret = i2schar_register(i2s, port);
if (ret < 0)
{
aerr("ERROR: i2schar_register failed: %d\n", ret);
@ -83,29 +84,71 @@ int board_i2sdev_initialize(int port)
}
#endif
if (enable_tx)
{
/* Initialize audio output */
audio_i2s = audio_i2s_initialize(i2s, true);
if (!audio_i2s)
if (audio_i2s == NULL)
{
auderr("ERROR: Failed to initialize I2S\n");
auderr("ERROR: Failed to initialize I2S audio output\n");
return -ENODEV;
}
snprintf(devname, sizeof(devname), "pcm%d", port);
/* If nxlooper is selected, the playback buffer is not rendered as
* a WAV file. Therefore, PCM decode will fail while processing such
* output buffer. In such a case, we bypass the PCM decode.
*/
#ifdef CONFIG_SYSTEM_NXLOOPER
ret = audio_register(devname, audio_i2s);
#else
struct audio_lowerhalf_s *pcm;
pcm = pcm_decode_initialize(audio_i2s);
if (!pcm)
if (pcm == NULL)
{
auderr("ERROR: Failed create the PCM decoder\n");
return -ENODEV;
}
snprintf(devname, 12, "pcm%d", port);
ret = audio_register(devname, pcm);
#endif /* CONFIG_SYSTEM_NXLOOPER */
if (ret < 0)
{
auderr("ERROR: Failed to register /dev/%s device: %d\n", devname, ret);
auderr("ERROR: Failed to register /dev/%s device: %d\n",
devname, ret);
return ret;
}
}
if (enable_rx)
{
/* Initialize audio input */
audio_i2s = audio_i2s_initialize(i2s, false);
if (audio_i2s == NULL)
{
auderr("ERROR: Failed to initialize I2S audio input\n");
return -ENODEV;
}
snprintf(devname, sizeof(devname), "pcm_in%d", port);
ret = audio_register(devname, audio_i2s);
if (ret < 0)
{
auderr("ERROR: Failed to register /dev/%s device: %d\n",
devname, ret);
return ret;
}
}
return ret;

8
boards/xtensa/esp32/esp32-devkitc/configs/i2schar/defconfig
View File

@ -6,7 +6,6 @@
# 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
@ -25,13 +24,18 @@ CONFIG_AUDIO_I2S=y
CONFIG_AUDIO_I2SCHAR=y
CONFIG_BOARD_LOOPSPERMSEC=16717
CONFIG_BUILTIN=y
CONFIG_DEBUG_SYMBOLS=y
CONFIG_DRIVERS_AUDIO=y
CONFIG_ESP32_I2S0=y
CONFIG_ESP32_I2S0_DATA_BIT_WIDTH_16BIT=y
CONFIG_ESP32_I2S0_MCLK=y
CONFIG_ESP32_I2S1=y
CONFIG_ESP32_I2S=y
CONFIG_ESP32_UART0=y
CONFIG_EXAMPLES_I2SCHAR=y
CONFIG_EXAMPLES_I2SCHAR_BUFSIZE=1024
CONFIG_EXAMPLES_I2SCHAR_RX=y
CONFIG_EXAMPLES_I2SCHAR_RXBUFFERS=2
CONFIG_EXAMPLES_I2SCHAR_RXSTACKSIZE=4096
CONFIG_EXAMPLES_I2SCHAR_TX=y
CONFIG_EXAMPLES_I2SCHAR_TXBUFFERS=2
CONFIG_EXAMPLES_I2SCHAR_TXSTACKSIZE=4096

129
boards/xtensa/esp32/esp32-devkitc/configs/nxlooper/defconfig Normal file
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@ -0,0 +1,129 @@
#
# 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_ESP32_I2S1_TX 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-devkitc"
CONFIG_ARCH_BOARD_COMMON=y
CONFIG_ARCH_BOARD_ESP32_DEVKITC=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=4092
CONFIG_AUDIO_EXCLUDE_BALANCE=y
CONFIG_AUDIO_EXCLUDE_FFORWARD=y
CONFIG_AUDIO_EXCLUDE_TONE=y
CONFIG_AUDIO_EXCLUDE_VOLUME=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_DEFAULT_TASK_STACKSIZE=4096
CONFIG_DEV_URANDOM=y
CONFIG_DRIVERS_AUDIO=y
CONFIG_DRIVERS_IEEE80211=y
CONFIG_DRIVERS_WIRELESS=y
CONFIG_ESP32_I2S0=y
CONFIG_ESP32_I2S0_DATA_BIT_WIDTH_16BIT=y
CONFIG_ESP32_I2S0_MCLK=y
CONFIG_ESP32_I2S1=y
CONFIG_ESP32_I2S1_DATA_BIT_WIDTH_16BIT=y
CONFIG_ESP32_I2S=y
CONFIG_ESP32_SPIFLASH=y
CONFIG_ESP32_SPIFLASH_SPIFFS=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_BUFSIZE=960
CONFIG_EXAMPLES_I2SCHAR_RX=y
CONFIG_EXAMPLES_I2SCHAR_RXBUFFERS=2
CONFIG_EXAMPLES_I2SCHAR_RXSTACKSIZE=2048
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_IOB_NBUFFERS=24
CONFIG_IOB_THROTTLE=0
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_SPIFFS_NAME_MAX=48
CONFIG_START_DAY=6
CONFIG_START_MONTH=12
CONFIG_START_YEAR=2011
CONFIG_SYSTEM_DHCPC_RENEW=y
CONFIG_SYSTEM_NSH=y
CONFIG_SYSTEM_NXLOOPER=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

4
boards/xtensa/esp32/esp32-devkitc/src/esp32-devkitc.h
View File

@ -166,6 +166,8 @@ int esp32_twai_setup(void);
*
* Input Parameters:
* port - The I2S port used for the device
* enable_tx - Register device as TX if true
* enable_rx - Register device as RX if true
*
* Returned Value:
* Zero is returned on success. Otherwise, a negated errno value is
@ -175,7 +177,7 @@ int esp32_twai_setup(void);
#if defined(CONFIG_ESP32_I2S0) && !defined(CONFIG_AUDIO_CS4344) || \
defined(CONFIG_ESP32_I2S1)
int board_i2sdev_initialize(int port);
int board_i2sdev_initialize(int port, bool enable_tx, bool enable_rx);
#endif
/****************************************************************************

37
boards/xtensa/esp32/esp32-devkitc/src/esp32_bringup.c
View File

@ -488,6 +488,12 @@ int esp32_bringup(void)
#ifdef CONFIG_ESP32_I2S
#if defined(CONFIG_ESP32_I2S0) && !defined(CONFIG_AUDIO_CS4344) || \
defined(CONFIG_ESP32_I2S1)
bool i2s_enable_tx;
bool i2s_enable_rx;
#endif
#ifdef CONFIG_ESP32_I2S0
/* Configure I2S0 */
@ -503,27 +509,52 @@ int esp32_bringup(void)
}
#else
#ifdef CONFIG_ESP32_I2S0_TX
i2s_enable_tx = true;
#else
i2s_enable_tx = false;
#endif /* CONFIG_ESP32_I2S0_TX */
#ifdef CONFIG_ESP32_I2S0_RX
i2s_enable_rx = true;
#else
i2s_enable_rx = false;
#endif /* CONFIG_ESP32_I2S0_RX */
/* Configure I2S generic audio on I2S0 */
ret = board_i2sdev_initialize(ESP32_I2S0);
ret = board_i2sdev_initialize(ESP32_I2S0, i2s_enable_tx, i2s_enable_rx);
if (ret < 0)
{
syslog(LOG_ERR, "Failed to initialize I2S%d driver: %d\n",
CONFIG_ESP32_I2S0, ret);
}
#endif /* CONFIG_AUDIO_CS4344 */
#endif /* CONFIG_ESP32_I2S0 */
#ifdef CONFIG_ESP32_I2S1
#ifdef CONFIG_ESP32_I2S1_TX
i2s_enable_tx = true;
#else
i2s_enable_tx = false;
#endif /* CONFIG_ESP32_I2S1_TX */
#ifdef CONFIG_ESP32_I2S1_RX
i2s_enable_rx = true;
#else
i2s_enable_rx = false;
#endif /* CONFIG_ESP32_I2S1_RX */
/* Configure I2S generic audio on I2S1 */
ret = board_i2sdev_initialize(ESP32_I2S1);
ret = board_i2sdev_initialize(ESP32_I2S1, i2s_enable_tx, i2s_enable_rx);
if (ret < 0)
{
syslog(LOG_ERR, "Failed to initialize I2S%d driver: %d\n",
CONFIG_ESP32_I2S0, ret);
CONFIG_ESP32_I2S1, ret);
}
#endif /* CONFIG_ESP32_I2S1 */