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22 results

watchdog.c

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  • Forked from card10 / firmware
    Source project has a limited visibility.
    pmic.c 1.71 KiB
    #include <stdio.h>
    
    #include "max32665.h"
    #include "gcr_regs.h"
    #include "pmic.h"
    #include "MAX77650-Arduino-Library.h"
    
    #include "FreeRTOS.h"
    #include "task.h"
    
    #include "epicardium.h"
    #include "modules.h"
    
    /* Task ID for the pmic handler */
    static TaskHandle_t pmic_task_id = NULL;
    
    void pmic_interrupt_callback(void *_)
    {
    	BaseType_t xHigherPriorityTaskWoken = pdFALSE;
    	if (pmic_task_id != NULL) {
    		vTaskNotifyGiveFromISR(pmic_task_id, &xHigherPriorityTaskWoken);
    		portYIELD_FROM_ISR(xHigherPriorityTaskWoken);
    	}
    }
    
    void vPmicTask(void *pvParameters)
    {
    	int count = 0;
    	portTickType delay = portMAX_DELAY;
    	pmic_task_id = xTaskGetCurrentTaskHandle();
    
    	while (1) {
    		ulTaskNotifyTake(pdTRUE, delay);
    
    		if (count == PMIC_PRESS_SLEEP) {
    			printf("pmic: Sleep\n"
    			       "[[ Unimplemented ]]\n");
    		}
    
    		if (count == PMIC_PRESS_POWEROFF) {
    			printf("pmic: Poweroff\n"
    			       "[[ Unimplemented ]]\n");
    		}
    
    		uint8_t int_flag = MAX77650_getINT_GLBL();
    
    		if (int_flag & MAX77650_INT_nEN_F) {
    			/* Button was pressed */
    			count = 0;
    			delay = portTICK_PERIOD_MS * 100;
    		}
    		if (int_flag & MAX77650_INT_nEN_R) {
    			/* Button was pressed */
    			if (count < PMIC_PRESS_SLEEP) {
    				printf("pmic: Reset\n");
    				/*
    				 * Give the UART fifo time to clear.
    				 * TODO: Do this properly
    				 */
    				for (int i = 0; i < 0x1000000; i++) {
    					__asm volatile("nop");
    				}
    				MXC_GCR->rstr0 = MXC_F_GCR_RSTR0_SYSTEM;
    			}
    
    			count = 0;
    			delay = portMAX_DELAY;
    		}
    
    		/* TODO: Remove when all interrupts are handled */
    		if (int_flag & ~(MAX77650_INT_nEN_F | MAX77650_INT_nEN_R)) {
    			printf("=====> WARNING <=====\n"
    			       "* Unhandled PMIC Interrupt: %x\n",
    			       int_flag);
    		}
    
    		if (delay != portMAX_DELAY) {
    			count += 1;
    		}
    	}
    }