esp-idf/components/soc/src/esp32/include/hal/soc_ll.h

// Copyright 2020 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at

//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#pragma once

#include "soc/soc.h"
#include "soc/rtc_cntl_reg.h"
#include "soc/soc_caps.h"

#ifdef __cplusplus
extern "C" {
#endif

static inline void soc_ll_stall_core(int core)
{
    const int rtc_cntl_c1_m[SOC_CPU_CORES_NUM] = {RTC_CNTL_SW_STALL_PROCPU_C1_M, RTC_CNTL_SW_STALL_APPCPU_C1_M};
    const int rtc_cntl_c1_s[SOC_CPU_CORES_NUM] = {RTC_CNTL_SW_STALL_PROCPU_C1_S, RTC_CNTL_SW_STALL_APPCPU_C1_S};
    const int rtc_cntl_c0_m[SOC_CPU_CORES_NUM] = {RTC_CNTL_SW_STALL_PROCPU_C0_M, RTC_CNTL_SW_STALL_APPCPU_C0_M};
    const int rtc_cntl_c0_s[SOC_CPU_CORES_NUM] = {RTC_CNTL_SW_STALL_PROCPU_C0_S, RTC_CNTL_SW_STALL_APPCPU_C0_S};

    CLEAR_PERI_REG_MASK(RTC_CNTL_SW_CPU_STALL_REG, rtc_cntl_c1_m[core]);
    SET_PERI_REG_MASK(RTC_CNTL_SW_CPU_STALL_REG, 0x21 << rtc_cntl_c1_s[core]);
    CLEAR_PERI_REG_MASK(RTC_CNTL_OPTIONS0_REG, rtc_cntl_c0_m[core]);
    SET_PERI_REG_MASK(RTC_CNTL_OPTIONS0_REG, 2 << rtc_cntl_c0_s[core]);
}

static inline void soc_ll_unstall_core(int core)
{
    const int rtc_cntl_c1_m[SOC_CPU_CORES_NUM] = {RTC_CNTL_SW_STALL_PROCPU_C1_M, RTC_CNTL_SW_STALL_APPCPU_C1_M};
    const int rtc_cntl_c0_m[SOC_CPU_CORES_NUM] = {RTC_CNTL_SW_STALL_PROCPU_C0_M, RTC_CNTL_SW_STALL_APPCPU_C0_M};
    CLEAR_PERI_REG_MASK(RTC_CNTL_SW_CPU_STALL_REG, rtc_cntl_c1_m[core]);
    CLEAR_PERI_REG_MASK(RTC_CNTL_OPTIONS0_REG, rtc_cntl_c0_m[core]);
}

static inline void soc_ll_reset_core(int core)
{
    SET_PERI_REG_MASK(RTC_CNTL_OPTIONS0_REG,
            core == 0 ? RTC_CNTL_SW_PROCPU_RST_M : RTC_CNTL_SW_APPCPU_RST_M);
}

#ifdef __cplusplus
}
#endif