/*
* Returns true if the current core is in ISR context; low prio ISR, med prio ISR or timer tick ISR. High prio ISRs
* aren't detected here, but they normally cannot call C code, so that should not be an issue anyway.
*/
BaseType_t xPortInIsrContext()
{
unsigned int irqStatus;
BaseType_t ret;
irqStatus=portENTER_CRITICAL_NESTED();
ret=(port_interruptNesting[xPortGetCoreID()] != 0);
portEXIT_CRITICAL_NESTED(irqStatus);
return ret;
}
/* 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 */
}
void vPortCPUReleaseMutex(portMUX_TYPE *mux) {
unsigned int irqStatus = portENTER_CRITICAL_NESTED();
vPortCPUReleaseMutexIntsDisabled(mux);
portEXIT_CRITICAL_NESTED(irqStatus);
}
void vPortCPUReleaseMutex(portMUX_TYPE *mux, const char *fnName, int line) {
unsigned int irqStatus = portENTER_CRITICAL_NESTED();
vPortCPUReleaseMutexIntsDisabled(mux, fnName, line);
portEXIT_CRITICAL_NESTED(irqStatus);
}
bool vPortCPUAcquireMutexTimeout(portMUX_TYPE *mux, int timeout_cycles) {
unsigned int irqStatus = portENTER_CRITICAL_NESTED();
bool result = vPortCPUAcquireMutexIntsDisabled(mux, timeout_cycles);
portEXIT_CRITICAL_NESTED(irqStatus);
return result;
}
void vPortCPUAcquireMutex(portMUX_TYPE *mux) {
unsigned int irqStatus = portENTER_CRITICAL_NESTED();
vPortCPUAcquireMutexIntsDisabled(mux, portMUX_NO_TIMEOUT);
portEXIT_CRITICAL_NESTED(irqStatus);
}
uint32_t IRAM_ATTR phy_enter_critical(void)
{
return portENTER_CRITICAL_NESTED();
}
