This commit provides an interface to register ISRs that run from
IRAM and keeps track of the non-IRAM interrupts. It enables, for
instance, to avoid disabling all the interrupts during a SPI flash
operation: IRAM-enabled ISRs are, then, able to run during these
operations.
It also makes the code look more similar to the ESP32-S3 SPI flash
implementation by creating a common `esp32_spiflash_init` that is
responsible to create the SPI flash operation tasks. The function
intended to initialize the SPI flash partions was, then, renamed to
`board_spiflash_init`.
Instead of using Espressif's emulated NVS to save Wi-Fi data, use
`wapi`s wireless configure initialization mechanism for saving
Wi-Fi data. It 1) avoids creating a specific storage partition
just to save Wi-Fi data (ESP32's storage partition is used
instead); 2) avoids initialization problems of the emulated NVS
when SMP is enabled (the Wi-Fi driver tries to initialize it before
the actual partition is initialized); and 3) enables reconnecting
using `wapi reconnect` command and connect the device automatically
on bringup if `CONFIG_NETUTILS_NETINIT` is selected.
If TELNET_CHARACTER_MODE is set, the ECHO must be handled by the telnet server.
So this option is useless. We need a new approach to control the ECHO behavior.
Signed-off-by: Huang Qi <huangqi3@xiaomi.com>
This commit adds support to Ai-Thinker ESP32 Audio Kit V2.2 A247
board.
There are two modules of this board. The old model uses AC101 audio
and is not supported currently (AFAIK there is no AC101 driver) and
the new version uses the ES8388 audio codec. This model is supported
by this commit.
Just read the documentation to test playing an audio file.
TODO: Test audio recording.
