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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2017 Scott Shawcroft for Adafruit Industries
* Copyright (c) 2019 Lucian Copeland for Adafruit Industries
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <stdint.h>
#include <sys/time.h>
#include "supervisor/port.h"
#include "boards/board.h"
#include "modules/module.h"
#include "py/runtime.h"
#include "supervisor/esp_port.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "common-hal/microcontroller/Pin.h"
#include "common-hal/analogio/AnalogOut.h"
#include "common-hal/busio/I2C.h"
#include "common-hal/busio/SPI.h"
#include "common-hal/busio/UART.h"
#include "common-hal/pulseio/PulseIn.h"
#include "common-hal/pwmio/PWMOut.h"
#include "common-hal/wifi/__init__.h"
#include "supervisor/memory.h"
#include "supervisor/shared/tick.h"
#include "shared-bindings/rtc/__init__.h"
#include "peripherals/rmt.h"
#include "peripherals/pcnt.h"
#include "components/heap/include/esp_heap_caps.h"
#include "components/soc/soc/esp32s2/include/soc/cache_memory.h"
#define HEAP_SIZE (48 * 1024)
uint32_t* heap;
uint32_t heap_size;
STATIC esp_timer_handle_t _tick_timer;
extern void esp_restart(void) NORETURN;
void tick_timer_cb(void* arg) {
supervisor_tick();
}
safe_mode_t port_init(void) {
esp_timer_create_args_t args;
args.callback = &tick_timer_cb;
args.arg = NULL;
args.dispatch_method = ESP_TIMER_TASK;
args.name = "CircuitPython Tick";
esp_timer_create(&args, &_tick_timer);
heap = NULL;
never_reset_module_internal_pins();
#ifdef CONFIG_SPIRAM
heap = (uint32_t*) (DRAM0_CACHE_ADDRESS_HIGH - CONFIG_SPIRAM_SIZE);
heap_size = CONFIG_SPIRAM_SIZE / sizeof(uint32_t);
#endif
if (heap == NULL) {
heap = malloc(HEAP_SIZE);
heap_size = HEAP_SIZE / sizeof(uint32_t);
}
if (heap == NULL) {
return NO_HEAP;
}
return NO_SAFE_MODE;
}
void reset_port(void) {
reset_all_pins();
// A larger delay so the idle task can run and do any IDF cleanup needed.
vTaskDelay(4);
#if CIRCUITPY_ANALOGIO
analogout_reset();
#endif
#if CIRCUITPY_PULSEIO
esp32s2_peripherals_rmt_reset();
pulsein_reset();
#endif
#if CIRCUITPY_PWMIO
pwmout_reset();
#endif
#if CIRCUITPY_BUSIO
i2c_reset();
spi_reset();
uart_reset();
#endif
#if defined(CIRCUITPY_COUNTIO) || defined(CIRCUITPY_ROTARYIO)
peripherals_pcnt_reset();
#endif
#if CIRCUITPY_RTC
rtc_reset();
#endif
#if CIRCUITPY_WIFI
wifi_reset();
#endif
}
void reset_to_bootloader(void) {
esp_restart();
}
void reset_cpu(void) {
esp_restart();
}
uint32_t *port_heap_get_bottom(void) {
return heap;
}
uint32_t *port_heap_get_top(void) {
return heap + heap_size;
}
uint32_t *port_stack_get_limit(void) {
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-align"
return (uint32_t*) pxTaskGetStackStart(NULL);
#pragma GCC diagnostic pop
}
uint32_t *port_stack_get_top(void) {
// The sizeof-arithmetic is so that the pointer arithmetic is done on units
// of uint32_t instead of units of StackType_t. StackType_t is an alias
// for a byte sized type.
//
// The main stack is bigger than CONFIG_ESP_MAIN_TASK_STACK_SIZE -- an
// "extra" size is added to it (TASK_EXTRA_STACK_SIZE). This total size is
// available as ESP_TASK_MAIN_STACK. Presumably TASK_EXTRA_STACK_SIZE is
// additional stack that can be used by the esp-idf runtime. But what's
// important for us is that some very outermost stack frames, such as
// pyexec_friendly_repl, could lie inside the "extra" area and be invisible
// to the garbage collector.
return port_stack_get_limit() + ESP_TASK_MAIN_STACK / (sizeof(uint32_t) / sizeof(StackType_t));
}
supervisor_allocation _fixed_stack;
supervisor_allocation* port_fixed_stack(void) {
_fixed_stack.ptr = port_stack_get_limit();
_fixed_stack.length = (port_stack_get_top() - port_stack_get_limit()) * sizeof(uint32_t);
return &_fixed_stack;
}
// Place the word to save just after our BSS section that gets blanked.
void port_set_saved_word(uint32_t value) {
}
uint32_t port_get_saved_word(void) {
return 0;
}
uint64_t port_get_raw_ticks(uint8_t* subticks) {
struct timeval tv_now;
gettimeofday(&tv_now, NULL);
// convert usec back to ticks
uint64_t all_subticks = (uint64_t)(tv_now.tv_usec * 2) / 71;
if (subticks != NULL) {
*subticks = all_subticks % 32;
}
return (uint64_t)tv_now.tv_sec * 1024L + all_subticks / 32;
}
// Enable 1/1024 second tick.
void port_enable_tick(void) {
esp_timer_start_periodic(_tick_timer, 1000000 / 1024);
}
// Disable 1/1024 second tick.
void port_disable_tick(void) {
esp_timer_stop(_tick_timer);
}
TickType_t sleep_time_duration;
void port_interrupt_after_ticks(uint32_t ticks) {
sleep_time_duration = (ticks * 100)/1024;
sleeping_circuitpython_task = xTaskGetCurrentTaskHandle();
}
void port_sleep_until_interrupt(void) {
uint32_t NotifyValue = 0;
if (sleep_time_duration == 0) {
return;
}
xTaskNotifyWait(0x01,0x01,&NotifyValue,
sleep_time_duration );
if (NotifyValue == 1) {
sleeping_circuitpython_task = NULL;
mp_handle_pending();
}
}
// Wrap main in app_main that the IDF expects.
extern void main(void);
void app_main(void) {
main();
}
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