219 lines
6.9 KiB
C
219 lines
6.9 KiB
C
/*
|
|
* This file is part of the Micro Python project, http://micropython.org/
|
|
*
|
|
* The MIT License (MIT)
|
|
*
|
|
* Copyright (c) 2015 Daniel Campora
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
|
|
/******************************************************************************
|
|
IMPORTS
|
|
******************************************************************************/
|
|
#include <stdio.h>
|
|
#include <stdint.h>
|
|
#include <string.h>
|
|
|
|
|
|
#include "py/mpstate.h"
|
|
#include "py/mphal.h"
|
|
#include "py/runtime.h"
|
|
#include "py/objstr.h"
|
|
#include "inc/hw_types.h"
|
|
#include "inc/hw_ints.h"
|
|
#include "inc/hw_nvic.h"
|
|
#include "hw_memmap.h"
|
|
#include "rom_map.h"
|
|
#include "interrupt.h"
|
|
#include "systick.h"
|
|
#include "prcm.h"
|
|
#include "pin.h"
|
|
#include "mpexception.h"
|
|
#include "telnet.h"
|
|
#include "pybuart.h"
|
|
#include "utils.h"
|
|
#include "irq.h"
|
|
#include "moduos.h"
|
|
|
|
#ifdef USE_FREERTOS
|
|
#include "FreeRTOS.h"
|
|
#include "task.h"
|
|
#include "semphr.h"
|
|
#endif
|
|
|
|
|
|
/******************************************************************************
|
|
DECLARE PRIVATE FUNCTIONS
|
|
******************************************************************************/
|
|
#ifndef USE_FREERTOS
|
|
static void hal_TickInit (void);
|
|
#endif
|
|
|
|
/******************************************************************************
|
|
DECLARE LOCAL DATA
|
|
******************************************************************************/
|
|
static volatile uint32_t HAL_tickCount;
|
|
|
|
/******************************************************************************
|
|
DECLARE IMPORTED DATA
|
|
******************************************************************************/
|
|
extern void (* const g_pfnVectors[256])(void);
|
|
|
|
/******************************************************************************
|
|
DEFINE PUBLIC FUNCTIONS
|
|
******************************************************************************/
|
|
|
|
__attribute__ ((section (".boot")))
|
|
void HAL_SystemInit (void) {
|
|
MAP_IntVTableBaseSet((unsigned long)&g_pfnVectors[0]);
|
|
|
|
// in the case of a release image, these steps are already performed by
|
|
// the bootloader so we can skip it and gain some code space
|
|
#ifdef DEBUG
|
|
MAP_IntMasterEnable();
|
|
PRCMCC3200MCUInit();
|
|
#endif
|
|
|
|
#ifndef USE_FREERTOS
|
|
hal_TickInit();
|
|
#endif
|
|
}
|
|
|
|
void HAL_SystemDeInit (void) {
|
|
}
|
|
|
|
void HAL_IncrementTick(void) {
|
|
HAL_tickCount++;
|
|
}
|
|
|
|
mp_uint_t mp_hal_ticks_ms(void) {
|
|
return HAL_tickCount;
|
|
}
|
|
|
|
void mp_hal_delay_ms(mp_uint_t delay) {
|
|
// only if we are not within interrupt context and interrupts are enabled
|
|
if ((HAL_NVIC_INT_CTRL_REG & HAL_VECTACTIVE_MASK) == 0 && query_irq() == IRQ_STATE_ENABLED) {
|
|
MP_THREAD_GIL_EXIT();
|
|
#ifdef USE_FREERTOS
|
|
vTaskDelay (delay / portTICK_PERIOD_MS);
|
|
#else
|
|
uint32_t start = HAL_tickCount;
|
|
// wraparound of tick is taken care of by 2's complement arithmetic.
|
|
while (HAL_tickCount - start < delay) {
|
|
// enter sleep mode, waiting for (at least) the SysTick interrupt.
|
|
__WFI();
|
|
}
|
|
#endif
|
|
MP_THREAD_GIL_ENTER();
|
|
} else {
|
|
for (int ms = 0; ms < delay; ms++) {
|
|
UtilsDelay(UTILS_DELAY_US_TO_COUNT(1000));
|
|
}
|
|
}
|
|
}
|
|
|
|
NORETURN void mp_hal_raise(int errno) {
|
|
nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, mp_obj_new_int(errno)));
|
|
}
|
|
|
|
void mp_hal_set_interrupt_char (int c) {
|
|
mpexception_set_interrupt_char (c);
|
|
}
|
|
|
|
void mp_hal_stdout_tx_str(const char *str) {
|
|
mp_hal_stdout_tx_strn(str, strlen(str));
|
|
}
|
|
|
|
void mp_hal_stdout_tx_strn(const char *str, size_t len) {
|
|
if (MP_STATE_PORT(os_term_dup_obj)) {
|
|
if (MP_OBJ_IS_TYPE(MP_STATE_PORT(os_term_dup_obj)->stream_o, &pyb_uart_type)) {
|
|
uart_tx_strn(MP_STATE_PORT(os_term_dup_obj)->stream_o, str, len);
|
|
} else {
|
|
MP_STATE_PORT(os_term_dup_obj)->write[2] = mp_obj_new_str_of_type(&mp_type_str, (const byte *)str, len);
|
|
mp_call_method_n_kw(1, 0, MP_STATE_PORT(os_term_dup_obj)->write);
|
|
}
|
|
}
|
|
// and also to telnet
|
|
telnet_tx_strn(str, len);
|
|
}
|
|
|
|
void mp_hal_stdout_tx_strn_cooked (const char *str, size_t len) {
|
|
int32_t nslen = 0;
|
|
const char *_str = str;
|
|
|
|
for (int i = 0; i < len; i++) {
|
|
if (str[i] == '\n') {
|
|
mp_hal_stdout_tx_strn(_str, nslen);
|
|
mp_hal_stdout_tx_strn("\r\n", 2);
|
|
_str += nslen + 1;
|
|
nslen = 0;
|
|
} else {
|
|
nslen++;
|
|
}
|
|
}
|
|
if (_str < str + len) {
|
|
mp_hal_stdout_tx_strn(_str, nslen);
|
|
}
|
|
}
|
|
|
|
int mp_hal_stdin_rx_chr(void) {
|
|
for ( ;; ) {
|
|
// read telnet first
|
|
if (telnet_rx_any()) {
|
|
return telnet_rx_char();
|
|
} else if (MP_STATE_PORT(os_term_dup_obj)) { // then the stdio_dup
|
|
if (MP_OBJ_IS_TYPE(MP_STATE_PORT(os_term_dup_obj)->stream_o, &pyb_uart_type)) {
|
|
if (uart_rx_any(MP_STATE_PORT(os_term_dup_obj)->stream_o)) {
|
|
return uart_rx_char(MP_STATE_PORT(os_term_dup_obj)->stream_o);
|
|
}
|
|
} else {
|
|
MP_STATE_PORT(os_term_dup_obj)->read[2] = mp_obj_new_int(1);
|
|
mp_obj_t data = mp_call_method_n_kw(1, 0, MP_STATE_PORT(os_term_dup_obj)->read);
|
|
// data len is > 0
|
|
if (mp_obj_is_true(data)) {
|
|
mp_buffer_info_t bufinfo;
|
|
mp_get_buffer_raise(data, &bufinfo, MP_BUFFER_READ);
|
|
return ((int *)(bufinfo.buf))[0];
|
|
}
|
|
}
|
|
}
|
|
mp_hal_delay_ms(1);
|
|
}
|
|
}
|
|
|
|
/******************************************************************************
|
|
DEFINE PRIVATE FUNCTIONS
|
|
******************************************************************************/
|
|
|
|
#ifndef USE_FREERTOS
|
|
static void hal_TickInit (void) {
|
|
HAL_tickCount = 0;
|
|
MAP_SysTickIntRegister(HAL_IncrementTick);
|
|
MAP_IntEnable(FAULT_SYSTICK);
|
|
MAP_SysTickIntEnable();
|
|
MAP_SysTickPeriodSet(HAL_FCPU_HZ / HAL_SYSTICK_PERIOD_US);
|
|
// Force a reload of the SysTick counter register
|
|
HWREG(NVIC_ST_CURRENT) = 0;
|
|
MAP_SysTickEnable();
|
|
}
|
|
#endif
|
|
|