151 lines
3.5 KiB
C
151 lines
3.5 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 2019 Sony Semiconductor Solutions Corporation
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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/boardctl.h>
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#include <sys/time.h>
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#include "sched/sched.h"
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#include "boards/board.h"
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#include "supervisor/port.h"
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#include "supervisor/shared/tick.h"
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#include "common-hal/microcontroller/Pin.h"
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#include "common-hal/analogio/AnalogIn.h"
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#include "common-hal/pulseio/PulseOut.h"
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#include "common-hal/pulseio/PWMOut.h"
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#include "common-hal/busio/UART.h"
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safe_mode_t port_init(void) {
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boardctl(BOARDIOC_INIT, 0);
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board_init();
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if (board_requests_safe_mode()) {
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return USER_SAFE_MODE;
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}
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return NO_SAFE_MODE;
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}
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void reset_cpu(void) {
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boardctl(BOARDIOC_RESET, 0);
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}
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void reset_port(void) {
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#if CIRCUITPY_ANALOGIO
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analogin_reset();
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#endif
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#if CIRCUITPY_PULSEIO
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pulseout_reset();
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pwmout_reset();
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#endif
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#if CIRCUITPY_BUSIO
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busio_uart_reset();
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#endif
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reset_all_pins();
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}
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void reset_to_bootloader(void) {
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}
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supervisor_allocation* port_fixed_stack(void) {
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return NULL;
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}
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uint32_t *port_stack_get_limit(void) {
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struct tcb_s *rtcb = this_task();
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return rtcb->adj_stack_ptr - (uint32_t)rtcb->adj_stack_size;
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}
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uint32_t *port_stack_get_top(void) {
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struct tcb_s *rtcb = this_task();
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return rtcb->adj_stack_ptr;
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}
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uint32_t *port_heap_get_bottom(void) {
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return port_stack_get_limit();
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}
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uint32_t *port_heap_get_top(void) {
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return port_stack_get_top();
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}
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extern uint32_t _ebss;
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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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_ebss = value;
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}
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uint32_t port_get_saved_word(void) {
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return _ebss;
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}
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volatile bool _tick_enabled;
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void board_timerhook(void)
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{
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// Do things common to all ports when the tick occurs
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if (_tick_enabled) {
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supervisor_tick();
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}
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}
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uint64_t port_get_raw_ticks(uint8_t* subticks) {
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struct timeval tv;
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gettimeofday(&tv, NULL);
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long computed_subticks = tv.tv_usec * 1024 * 32 / 1000000;
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if (subticks != NULL) {
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*subticks = computed_subticks % 32;
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}
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return tv.tv_sec * 1024 + computed_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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_tick_enabled = true;
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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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_tick_enabled = false;
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}
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void port_interrupt_after_ticks(uint32_t ticks) {
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}
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void port_sleep_until_interrupt(void) {
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// TODO: Implement sleep.
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}
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