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210 lines
7.5 KiB
210 lines
7.5 KiB
/*
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* This file is part of the Micro Python 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) 2013, 2014 Damien P. George
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* Copyright (c) 2015 Daniel Campora
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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 <stdio.h>
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#include <stdint.h>
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#include <string.h>
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#include "py/mpconfig.h"
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#include "py/obj.h"
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#include "py/runtime.h"
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#include "py/mphal.h"
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#include "hw_ints.h"
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#include "hw_types.h"
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#include "hw_gpio.h"
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#include "hw_memmap.h"
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#include "hw_gprcm.h"
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#include "hw_common_reg.h"
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#include "pin.h"
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#include "gpio.h"
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#ifndef BOOTLOADER
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#include "pybpin.h"
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#include "pins.h"
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#endif
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#include "rom_map.h"
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#include "prcm.h"
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#include "pybuart.h"
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#include "utils.h"
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#include "mperror.h"
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/******************************************************************************
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DEFINE CONSTANTS
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******************************************************************************/
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#define MPERROR_TOOGLE_MS (50)
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#define MPERROR_SIGNAL_ERROR_MS (1200)
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#define MPERROR_HEARTBEAT_ON_MS (80)
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#define MPERROR_HEARTBEAT_OFF_MS (3920)
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/******************************************************************************
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DECLARE PRIVATE DATA
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******************************************************************************/
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#ifndef BOOTLOADER
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STATIC const mp_obj_base_t pyb_heartbeat_obj = {&pyb_heartbeat_type};
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#endif
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struct mperror_heart_beat {
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uint32_t off_time;
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uint32_t on_time;
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bool beating;
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bool enabled;
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bool do_disable;
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} mperror_heart_beat = {.off_time = 0, .on_time = 0, .beating = false, .enabled = false, .do_disable = false};
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/******************************************************************************
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DEFINE PUBLIC FUNCTIONS
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******************************************************************************/
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void mperror_init0 (void) {
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#ifdef BOOTLOADER
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// enable the system led and the safe boot pin peripheral clocks
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MAP_PRCMPeripheralClkEnable(MICROPY_SYS_LED_PRCM, PRCM_RUN_MODE_CLK | PRCM_SLP_MODE_CLK);
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MAP_PRCMPeripheralClkEnable(MICROPY_SAFE_BOOT_PRCM, PRCM_RUN_MODE_CLK | PRCM_SLP_MODE_CLK);
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// configure the safe boot pin
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MAP_PinTypeGPIO(MICROPY_SAFE_BOOT_PIN_NUM, PIN_MODE_0, false);
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MAP_PinConfigSet(MICROPY_SAFE_BOOT_PIN_NUM, PIN_STRENGTH_4MA, PIN_TYPE_STD_PD);
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MAP_GPIODirModeSet(MICROPY_SAFE_BOOT_PORT, MICROPY_SAFE_BOOT_PORT_PIN, GPIO_DIR_MODE_IN);
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// configure the bld
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MAP_PinTypeGPIO(MICROPY_SYS_LED_PIN_NUM, PIN_MODE_0, false);
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MAP_PinConfigSet(MICROPY_SYS_LED_PIN_NUM, PIN_STRENGTH_6MA, PIN_TYPE_STD);
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MAP_GPIODirModeSet(MICROPY_SYS_LED_PORT, MICROPY_SYS_LED_PORT_PIN, GPIO_DIR_MODE_OUT);
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#else
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// configure the system led
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pin_config ((pin_obj_t *)&MICROPY_SYS_LED_GPIO, PIN_MODE_0, GPIO_DIR_MODE_OUT, PIN_TYPE_STD, 0, PIN_STRENGTH_6MA);
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#endif
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mperror_heart_beat.enabled = true;
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mperror_heartbeat_switch_off();
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}
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void mperror_bootloader_check_reset_cause (void) {
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// if we are recovering from a WDT reset, trigger
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// a hibernate cycle for a clean boot
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if (MAP_PRCMSysResetCauseGet() == PRCM_WDT_RESET) {
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HWREG(0x400F70B8) = 1;
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UtilsDelay(800000/5);
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HWREG(0x400F70B0) = 1;
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UtilsDelay(800000/5);
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HWREG(0x4402E16C) |= 0x2;
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UtilsDelay(800);
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HWREG(0x4402F024) &= 0xF7FFFFFF;
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// since the reset cause will be changed, we must store the right reason
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// so that the application knows it when booting for the next time
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PRCMSetSpecialBit(PRCM_WDT_RESET_BIT);
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MAP_PRCMHibernateWakeupSourceEnable(PRCM_HIB_SLOW_CLK_CTR);
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// set the sleep interval to 10ms
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MAP_PRCMHibernateIntervalSet(330);
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MAP_PRCMHibernateEnter();
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}
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}
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void mperror_deinit_sfe_pin (void) {
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// disable the pull-down
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MAP_PinConfigSet(MICROPY_SAFE_BOOT_PIN_NUM, PIN_STRENGTH_4MA, PIN_TYPE_STD);
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}
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void mperror_signal_error (void) {
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uint32_t count = 0;
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while ((MPERROR_TOOGLE_MS * count++) < MPERROR_SIGNAL_ERROR_MS) {
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// toogle the led
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MAP_GPIOPinWrite(MICROPY_SYS_LED_PORT, MICROPY_SYS_LED_PORT_PIN, ~MAP_GPIOPinRead(MICROPY_SYS_LED_PORT, MICROPY_SYS_LED_PORT_PIN));
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UtilsDelay(UTILS_DELAY_US_TO_COUNT(MPERROR_TOOGLE_MS * 1000));
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}
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}
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void mperror_heartbeat_switch_off (void) {
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if (mperror_heart_beat.enabled) {
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mperror_heart_beat.on_time = 0;
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mperror_heart_beat.off_time = 0;
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MAP_GPIOPinWrite(MICROPY_SYS_LED_PORT, MICROPY_SYS_LED_PORT_PIN, 0);
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}
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}
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void mperror_heartbeat_signal (void) {
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if (mperror_heart_beat.do_disable) {
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mperror_heart_beat.do_disable = false;
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} else if (mperror_heart_beat.enabled) {
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if (!mperror_heart_beat.beating) {
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if ((mperror_heart_beat.on_time = mp_hal_ticks_ms()) - mperror_heart_beat.off_time > MPERROR_HEARTBEAT_OFF_MS) {
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MAP_GPIOPinWrite(MICROPY_SYS_LED_PORT, MICROPY_SYS_LED_PORT_PIN, MICROPY_SYS_LED_PORT_PIN);
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mperror_heart_beat.beating = true;
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}
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} else {
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if ((mperror_heart_beat.off_time = mp_hal_ticks_ms()) - mperror_heart_beat.on_time > MPERROR_HEARTBEAT_ON_MS) {
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MAP_GPIOPinWrite(MICROPY_SYS_LED_PORT, MICROPY_SYS_LED_PORT_PIN, 0);
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mperror_heart_beat.beating = false;
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}
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}
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}
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}
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void NORETURN __fatal_error(const char *msg) {
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#ifdef DEBUG
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if (msg != NULL) {
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// wait for 20ms
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UtilsDelay(UTILS_DELAY_US_TO_COUNT(20000));
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mp_hal_stdout_tx_str("\r\nFATAL ERROR:");
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mp_hal_stdout_tx_str(msg);
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mp_hal_stdout_tx_str("\r\n");
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}
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#endif
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// signal the crash with the system led
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MAP_GPIOPinWrite(MICROPY_SYS_LED_PORT, MICROPY_SYS_LED_PORT_PIN, MICROPY_SYS_LED_PORT_PIN);
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for ( ;; ) {__WFI();}
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}
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void __assert_func(const char *file, int line, const char *func, const char *expr) {
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(void) func;
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printf("Assertion failed: %s, file %s, line %d\n", expr, file, line);
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__fatal_error(NULL);
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}
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void nlr_jump_fail(void *val) {
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#ifdef DEBUG
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char msg[64];
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snprintf(msg, sizeof(msg), "uncaught exception %p\n", val);
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__fatal_error(msg);
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#else
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__fatal_error(NULL);
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#endif
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}
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void mperror_enable_heartbeat (bool enable) {
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if (enable) {
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mperror_heart_beat.enabled = true;
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mperror_heart_beat.do_disable = false;
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mperror_heartbeat_switch_off();
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} else {
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mperror_heart_beat.do_disable = true;
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mperror_heart_beat.enabled = false;
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}
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}
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bool mperror_is_heartbeat_enabled (void) {
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return mperror_heart_beat.enabled;
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}
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