esp-idf/examples/system/ipc/ipc_isr/main/main.c

/* ipc_isr example

   This example code is in the Public Domain (or CC0 licensed, at your option.)

   Unless required by applicable law or agreed to in writing, this
   software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
   CONDITIONS OF ANY KIND, either express or implied.
*/

#include <stdio.h>
#include <string.h>
#include "esp_timer.h"
#include "esp_log.h"
#include "esp_ipc_isr.h"
#include "sdkconfig.h"
#if __XTENSA__
#include "xtensa/config/core.h"
#else
#error "Doesn't support other architectures"
#endif

static const char* TAG = "example";

typedef struct {
    uint32_t regs[11];
    uint32_t in[3];
    uint32_t out[4];
} arg_data_t;

void get_ps_other_cpu(void* arg);
void extended_ipc_isr_asm(void* arg);

void app_main(void)
{
    ESP_LOGI(TAG, "Start");
    uint32_t ps_other_cpu = 0;
    ESP_LOGI(TAG, "call get_ps_other_cpu");
    esp_ipc_isr_asm_call_blocking(get_ps_other_cpu, &ps_other_cpu);
    ESP_LOGI(TAG, "PS_INTLEVEL = 0x%x", ps_other_cpu & XCHAL_PS_INTLEVEL_MASK);
    ESP_LOGI(TAG, "PS_EXCM = 0x%x", (ps_other_cpu & XCHAL_PS_EXCM_MASK) >> XCHAL_PS_EXCM_SHIFT);
    ESP_LOGI(TAG, "PS_UM = 0x%x", (ps_other_cpu & XCHAL_PS_UM_MASK) >> XCHAL_PS_UM_SHIFT);

    ESP_LOGI(TAG, "call extended_ipc_isr_asm");
    arg_data_t arg = { 0 };
    arg.in[0] = 0x01;
    arg.in[1] = 0x02;
    arg.in[2] = 0x03;
    ESP_LOGI(TAG, "in[0] = 0x%x", arg.in[0]);
    ESP_LOGI(TAG, "in[1] = 0x%x", arg.in[1]);
    ESP_LOGI(TAG, "in[2] = 0x%x", arg.in[2]);
    esp_ipc_isr_asm_call_blocking(extended_ipc_isr_asm, (void*)&arg);
    ESP_LOGI(TAG, "out[0] = (in[0] | in[1] | in[2]) = 0x%x", arg.out[0]);
    assert(0x03 == arg.out[0]);
    ESP_LOGI(TAG, "out[1] = (in[0] & in[1] & in[2]) = 0x%x", arg.out[1]);
    assert(0x06 == arg.out[1]);
    ESP_LOGI(TAG, "out[2] = in[2] = 0x%x", arg.out[2]);
    assert(0x03 == arg.out[2]);
    ESP_LOGI(TAG, "out[3] = PS of other cpu = 0x%x", arg.out[3]);
    assert(ps_other_cpu == arg.out[3]);
    ESP_LOGI(TAG, "End");
}