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RIOT/cpu/esp32/include/irq_arch.h

76 lines
2.7 KiB
C

/*
* Copyright (C) 2018 Gunar Schorcht
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
#pragma once
/**
* @ingroup cpu_esp32
* @{
*
* @file
* @brief Implementation of the kernels irq interface
*
* @author Gunar Schorcht <gunar@schorcht.net>
*
* @}
*/
#include "irq_arch_common.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* @name CPU interrupt numbers
*
* All interrupts that are used for RIOT-OS are preallocated and fix.
* The allocated interrupts are all level interrupts, most of them with
* low priority.
*
* @{
*/
/* On Xtensa-based ESP32x SoCs, interrupt 0 is reserved for the WiFi interface
* and interrupt 1 is available. However, since interrupt 0 is not available on
* RISC-V-based ESP32x SoCs, interrupt 1 is used for the WiFi interface instead.
* Therefore, we use interrupt 1 for the RMT peripheral on Xtensa-based ESP32x
* SoCs, but we use interrupt 11 for the RMT peripheral on RISC-V-based ESP32x
* SoCs. Interrupt 11 is reserved for profiling on Xtensa-based ESP32x SoCs. */
#if defined(__XTENSA__)
# define CPU_INUM_RMT 1 /**< Level interrupt with low priority 1 */
#else
# define CPU_INUM_RMT 11 /**< Level interrupt with low priority 1 */
#endif
#define CPU_INUM_GPIO 2 /**< Level interrupt with low priority 1 */
#define CPU_INUM_BLE 5 /**< Level interrupt with low priority 1 */
#define CPU_INUM_RTT 9 /**< Level interrupt with low priority 1 */
#define CPU_INUM_SERIAL_JTAG 10 /**< Edge interrupt with low priority 1 */
#define CPU_INUM_I2C 12 /**< Level interrupt with low priority 1 */
#define CPU_INUM_UART 13 /**< Level interrupt with low priority 1 */
#define CPU_INUM_CAN 17 /**< Level interrupt with low priority 1 */
#define CPU_INUM_ETH 18 /**< Level interrupt with low priority 1 */
#define CPU_INUM_USB 18 /**< Level interrupt with low priority 1 */
#define CPU_INUM_LCDCAM 19 /**< Level interrupt with medium priority 2 */
#define CPU_INUM_FRC2 20 /**< Level interrupt with medium priority 2 */
#define CPU_INUM_SYSTIMER 20 /**< Level interrupt with medium priority 2 */
#define CPU_INUM_SDMMC 21 /**< Level interrupt with medium priority 2 */
#define CPU_INUM_TIMER 22 /**< Edge interrupt with medium priority 2 */
#define CPU_INUM_WDT 23 /**< Level interrupt with medium priority 3 */
#define CPU_INUM_SOFTWARE 29 /**< Software interrupt with medium priority 3 */
/** @} */
/**
* @brief Initialize architecture specific interrupt handling
*/
void esp_irq_init(void);
#ifdef __cplusplus
}
#endif