This PR adds the drivers for Allwinner A64 PIO (Programmable I/O) and PinePhone LEDs (Red / Green / Blue).
The PIO Driver is based on the NuttX PIO Driver for Allwinner A10: [`arch/arm/src/a1x/a1x_pio.c`](https://github.com/apache/nuttx/blob/master/arch/arm/src/a1x/a1x_pio.c)
- `arch/arm64/src/a64/Make.defs`: Add PIO Driver to Makefile
- `boards/Kconfig`: Add `ARCH_HAVE_LEDS` to PinePhone
- `boards/arm64/a64/pinephone/src/pinephone.h`: Define PinePhone LEDs
- `boards/arm64/a64/pinephone/src/pinephone_boardinit.c`: Start Auto LEDs
- `boards/arm64/a64/pinephone/src/pinephone_bringup.c`: Start User LEDs
- `boards/arm64/a64/pinephone/src/Makefile`: Add LED Driver to Makefile
- `boards/arm64/a64/pinephone/configs/nsh/defconfig`: Add `CONFIG_USERLED` to `nsh` config
- `arch/arm64/src/a64/a64_pio.c`, `a64_pio.h`: Allwinner A64 PIO Driver
- `arch/arm64/src/a64/hardware/a64_memorymap.h`: PIO Memory Map
- `arch/arm64/src/a64/hardware/a64_pio.h`: PIO Definitions
- `boards/arm64/a64/pinephone/include/board.h`: Define PinePhone LEDs
- `boards/arm64/a64/pinephone/src/pinephone_autoleds.c`: Driver for Auto LEDs
- `boards/arm64/a64/pinephone/src/pinephone_userleds.c`: Driver for User LEDs
- `introduction/supported_platforms.rst`: Add Allwinner A64 as Supported Platform
- `platforms/arm/a64/boards/pinephone/index.rst`: Add PIO and LEDs to PinePhone
* enable DLFCN.
* bump WAMR to a version which i happened to test.
* enable bulk-memory because it's required by recent versions of
wasi-sdk, which i happened to use to build a test module.
(test.wasm in the log below.)
Lightly tested with a stripped down version of WAMR native-lib example. [1]
```
nsh> mount -t littlefs /dev/esp32flash /mnt
nsh> iwasm --native-lib=/mnt/test_add.o /mnt/test.wasm
Hello World!
10 + 20 = 30
nsh> iwasm /mnt/test.wasm
[00:00:23:000 - 6]: warning: failed to link import function (env, test_add)
Hello World!
Exception: failed to call unlinked import function (env, test_add)
nsh>
```
[1] https://github.com/bytecodealliance/wasm-micro-runtime/tree/main/samples/native-lib
* disable too verbose wamr options.
* enable CONFIG_SCHED_WAITPID. because async execution on nsh prompt
sometimes confuses me.
* enable toywasm. it's sometimes convenient to have another interpreter.
note: wasm3 in nuttx apps doesn't have wasi enabled.
Summary:
- This commit fixes the build error in cxd56_crashdump.c
regressed by https://github.com/apache/nuttx/pull/7707
Impact:
- None
Tesing:
- Tested with spresense:wifi
Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com>
Add the necessary configs to the default nsh config file in order to enable
support for MMCSD-SPI.
Signed-off-by: Robert-Ionut Alexa <robertalexa2000@gmail.com>
Add support to esp32-sparrow-kit for the LTR308 sensor. This patch also
enables the sensor in the default nsh config file.
Signed-off-by: Robert-Ionut Alexa <robertalexa2000@gmail.com>
ESP32-SPARROW-KIT is built upon ESP32-WROVER-KIT by adding various
peripherals. This is an initial commits that only backports the code
as it is, without further changes.
Signed-off-by: Robert-Ionut Alexa <robertalexa2000@gmail.com>
In order to turn longjmp context-switch safe, it's necessary
to disable interrupts before modifying windowbase and windowstart.
Otherwise, after a context switch, windowstart and windowbase
would be different, leading to a wrongly set windowstart bit due to
longjmp writing it based on the windowbase before the context switch.
This corrupts the registers at the next window overflow reaching
that wrongly set bit.
*Background:*
This PR is related to an issue first observed on ESP-IDF
https://github.com/espressif/esp-idf/issues/5229 and it was, then,
checked on NuttX using a test application.
*The test application:*
To check if the problem affects ESP32, ESP32-S2 and ESP32-S3 on
NuttX, it was created an application based on:
https://en.cppreference.com/w/c/program/longjmp
The application creates 16 tasks (`#define NUMBER_OF_TASKS 16`)
that implements the following daemon:
```
static int setjmp_longjmp_daemon(int argc, char *argv[])
{
for (int i = 0; i < NUMBER_OF_TASKS * 2; i++)
{
jmp_buf env;
volatile int count = 0;
if (setjmp(env) != UINT16_MAX)
{
foo(&env, ++count);
}
}
sem_post(&g_sem);
return EXIT_SUCCESS;
}
```
The main function also initializes a semaphore to avoid application
exiting before tasks return successfully:
```
sem_init(&g_sem, 0, -NUMBER_OF_TASKS);
```
Finally, the round-robin interval was lowered to 1ms to raise the
chances of the longjmp being interrupted by a context switch
(`CONFIG_RR_INTERVAL=1).
This setup was able to reproduce the problem prior to this patch
being applied.
