82 lines
2.7 KiB
C
82 lines
2.7 KiB
C
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/*
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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) 2015 Glenn Ruben Bakke
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* Copyright (c) 2018 Artur Pacholec
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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 <string.h>
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#include "py/mphal.h"
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#include "py/mpstate.h"
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#include "py/gc.h"
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#include "csr.h"
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#include "generated/soc.h"
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#include "irq.h"
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#ifdef CFG_TUSB_MCU
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void hal_dcd_isr(uint8_t rhport);
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#endif
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/*------------------------------------------------------------------*/
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/* delay
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*------------------------------------------------------------------*/
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void mp_hal_delay_ms(mp_uint_t delay) {
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uint64_t start_tick = supervisor_ticks_ms64();
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uint64_t duration = 0;
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while (duration < delay) {
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#ifdef MICROPY_VM_HOOK_LOOP
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MICROPY_VM_HOOK_LOOP
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#endif
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// Check to see if we've been CTRL-Ced by autoreload or the user.
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if(MP_STATE_VM(mp_pending_exception) == MP_OBJ_FROM_PTR(&MP_STATE_VM(mp_kbd_exception)) ||
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MP_STATE_VM(mp_pending_exception) == MP_OBJ_FROM_PTR(&MP_STATE_VM(mp_reload_exception))) {
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break;
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}
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duration = (supervisor_ticks_ms64() - start_tick);
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// TODO(tannewt): Go to sleep for a little while while we wait.
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}
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}
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extern void SysTick_Handler(void);
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__attribute__((section(".ramtext")))
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void isr(void) {
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uint8_t irqs = irq_pending() & irq_getmask();
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#ifdef CFG_TUSB_MCU
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if (irqs & (1 << USB_INTERRUPT))
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hal_dcd_isr(0);
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#endif
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if (irqs & (1 << TIMER0_INTERRUPT))
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SysTick_Handler();
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}
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mp_uint_t cpu_get_regs_and_sp(mp_uint_t *regs) {
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unsigned long __tmp;
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asm volatile ("mv %0, x2" :"=r"(__tmp));
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return __tmp;
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}
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