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