C++ (Cpp) GETCSR Examples

Example #1

File: efe.c Project: metricinc/illumos-gate

/*
 * MII entry points.
 */
uint16_t
efe_mii_read(void *arg, uint8_t phy, uint8_t reg)
{
	efe_t *efep = arg;

	PUTCSR(efep, CSR_MMCTL, MMCTL_READ |
	    reg << MMCTL_PHYREG | phy << MMCTL_PHYADDR);

	for (int i = 0; i < MII_DELAY_CYCLES; ++i) {
		if (!(GETCSR(efep, CSR_MMCTL) & MMCTL_READ)) {
			return ((uint16_t)GETCSR(efep, CSR_MMDATA));
		}
		drv_usecwait(MII_DELAY);
	}
	efe_error(efep->efe_dip, "timed out reading from MII!");

	return (0);
}

Example #2

File: efe.c Project: metricinc/illumos-gate

inline int
efe_eeprom_readbit(efe_t *efep)
{
	PUTCSR(efep, CSR_EECTL, EECTL_ENABLE | EECTL_EECS);
	drv_usecwait(EEPROM_DELAY);

	PUTCSR(efep, CSR_EECTL, EECTL_ENABLE | EECTL_EECS |
	    EECTL_EESK);
	drv_usecwait(EEPROM_DELAY);

	PUTCSR(efep, CSR_EECTL, EECTL_ENABLE | EECTL_EECS);
	drv_usecwait(EEPROM_DELAY);

	return (!!(GETCSR(efep, CSR_EECTL) & EECTL_EEDO));
}

Example #3

File: efe.c Project: metricinc/illumos-gate

void
efe_mii_write(void *arg, uint8_t phy, uint8_t reg, uint16_t data)
{
	efe_t *efep = arg;

	PUTCSR(efep, CSR_MMDATA, data);

	PUTCSR(efep, CSR_MMCTL, MMCTL_WRITE |
	    reg << MMCTL_PHYREG | phy << MMCTL_PHYADDR);

	for (int i = 0; i < MII_DELAY_CYCLES; ++i) {
		if (!(GETCSR(efep, CSR_MMCTL) & MMCTL_WRITE)) {
			return;
		}
		drv_usecwait(MII_DELAY);
	}
	efe_error(efep->efe_dip, "timed out writing to MII!");
}

Example #4

File: efe.c Project: metricinc/illumos-gate

void
efe_eeprom_read(efe_t *efep, uint8_t *buf, size_t len, uint8_t addr)
{
	int addrlen;

	ASSERT(len & ~0x1);	/* non-zero; word-aligned */

	PUTCSR(efep, CSR_EECTL, EECTL_ENABLE | EECTL_EECS);
	drv_usecwait(EEPROM_DELAY);

	addrlen = (GETCSR(efep, CSR_EECTL) & EECTL_SIZE ?
	    AT93C46_ADDRLEN : AT93C56_ADDRLEN);

	for (int i = 0; i < len / sizeof (uint16_t); ++i) {
		uint16_t val = efe_eeprom_readw(efep, addrlen, addr + i);
		bcopy(&val, buf, sizeof (uint16_t));
		buf += sizeof (uint16_t);
	}
}

Example #5

File: efe.c Project: metricinc/illumos-gate

void
efe_stop_dma(efe_t *efep)
{
	ASSERT(mutex_owned(&efep->efe_intrlock));
	ASSERT(mutex_owned(&efep->efe_txlock));

	PUTCSR(efep, CSR_COMMAND,
	    COMMAND_STOP_RDMA | COMMAND_STOP_TDMA);

	for (int i = 0; i < STOP_DELAY_CYCLES; ++i) {
		uint32_t status = GETCSR(efep, CSR_INTSTAT);
		if (status & INTSTAT_RXIDLE &&
		    status & INTSTAT_TXIDLE) {
			return;
		}
		drv_usecwait(STOP_DELAY);
	}
	efe_error(efep->efe_dip, "timed out stopping DMA engine!");
}

Example #6

File: efe.c Project: metricinc/illumos-gate

/*
 * ISR/periodic callbacks.
 */
uint_t
efe_intr(caddr_t arg1, caddr_t arg2)
{
	efe_t *efep = (void *)arg1;
	uint32_t status;
	mblk_t *mp = NULL;

	_NOTE(ARGUNUSED(arg2));

	mutex_enter(&efep->efe_intrlock);

	if (efep->efe_flags & FLAG_SUSPENDED) {
		mutex_exit(&efep->efe_intrlock);
		return (DDI_INTR_UNCLAIMED);
	}

	status = GETCSR(efep, CSR_INTSTAT);
	if (!(status & INTSTAT_ACTV)) {
		mutex_exit(&efep->efe_intrlock);
		return (DDI_INTR_UNCLAIMED);
	}
	PUTCSR(efep, CSR_INTSTAT, status);

	if (status & INTSTAT_RCC) {
		mp = efe_recv(efep);
	}

	if (status & INTSTAT_RQE) {
		efep->efe_ierrors++;
		efep->efe_macrcv_errors++;

		/* Kick the receiver */
		PUTCSR(efep, CSR_COMMAND, COMMAND_RXQUEUED);
	}

	if (status & INTSTAT_TXC) {
		mutex_enter(&efep->efe_txlock);

		efe_send_done(efep);

		mutex_exit(&efep->efe_txlock);
	}

	if (status & INTSTAT_FATAL) {
		mutex_enter(&efep->efe_txlock);

		efe_error(efep->efe_dip, "bus error; resetting!");
		efe_restart(efep);

		mutex_exit(&efep->efe_txlock);
	}

	mutex_exit(&efep->efe_intrlock);

	if (mp != NULL) {
		mac_rx(efep->efe_mh, NULL, mp);
	}

	if (status & INTSTAT_TXC) {
		mac_tx_update(efep->efe_mh);
	}

	if (status & INTSTAT_FATAL) {
		mii_reset(efep->efe_miih);
	}

	return (DDI_INTR_CLAIMED);
}

Example #7

File: siglab_glue.cpp Project: Eskatrem/LispPlotter

long siglab_disable_denormals()
{
  int _savemxcsr = GETCSR();
  SETCSR(_savemxcsr | 0x8040);
  return _savemxcsr;
}