void esp_dport_access_int_deinit(void)
{
portENTER_CRITICAL_ISR(&g_dport_mux);
dport_core_state[0] = DPORT_CORE_STATE_IDLE;
#ifndef CONFIG_FREERTOS_UNICORE
dport_core_state[1] = DPORT_CORE_STATE_IDLE;
#endif
portEXIT_CRITICAL_ISR(&g_dport_mux);
}
static uint32_t IRAM_ATTR wifi_int_disable_wrapper(void *wifi_int_mux)
{
if (xPortInIsrContext()) {
portENTER_CRITICAL_ISR(wifi_int_mux);
} else {
portENTER_CRITICAL(wifi_int_mux);
}
return 0;
}
/* stall other cpu that this cpu is pending to access dport register start */
void IRAM_ATTR esp_dport_access_stall_other_cpu_start(void)
{
#ifndef CONFIG_FREERTOS_UNICORE
int cpu_id = xPortGetCoreID();
if (dport_core_state[0] == DPORT_CORE_STATE_IDLE
|| dport_core_state[1] == DPORT_CORE_STATE_IDLE) {
return;
}
#ifdef DPORT_ACCESS_BENCHMARK
ccount_start[cpu_id] = XTHAL_GET_CCOUNT();
#endif
BaseType_t intLvl=portENTER_CRITICAL_NESTED();
oldInterruptLevel[cpu_id]=intLvl;
if (dport_access_ref[cpu_id] == 0) {
portENTER_CRITICAL_ISR(&g_dport_mux);
dport_access_start[cpu_id] = 0;
dport_access_end[cpu_id] = 0;
if (cpu_id == 0) {
_DPORT_REG_WRITE(DPORT_CPU_INTR_FROM_CPU_3_REG, DPORT_CPU_INTR_FROM_CPU_3); //interrupt on cpu1
} else {
_DPORT_REG_WRITE(DPORT_CPU_INTR_FROM_CPU_2_REG, DPORT_CPU_INTR_FROM_CPU_2); //interrupt on cpu0
}
while (!dport_access_start[cpu_id]) {};
REG_READ(SPI_DATE_REG(3)); //just read a APB register sure that the APB-bus is idle
}
dport_access_ref[cpu_id]++;
#endif /* CONFIG_FREERTOS_UNICORE */
}