C++ (Cpp) intsmb_start Examples

Example #1

File: intpm.c Project: nomadlogic/freebsd-base-graphics

static int
intsmb_bwrite(device_t dev, u_char slave, char cmd, u_char count, char *buf)
{
	struct intsmb_softc *sc = device_get_softc(dev);
	int error, i;

	if (count > SMBBLOCKTRANS_MAX || count == 0)
		return (SMB_EINVAL);

	INTSMB_LOCK(sc);
	error = intsmb_free(sc);
	if (error) {
		INTSMB_UNLOCK(sc);
		return (error);
	}

	/* Reset internal array index. */
	bus_read_1(sc->io_res, PIIX4_SMBHSTCNT);

	bus_write_1(sc->io_res, PIIX4_SMBHSTADD, slave & ~LSB);
	bus_write_1(sc->io_res, PIIX4_SMBHSTCMD, cmd);
	for (i = 0; i < count; i++)
		bus_write_1(sc->io_res, PIIX4_SMBBLKDAT, buf[i]);
	bus_write_1(sc->io_res, PIIX4_SMBHSTDAT0, count);
	intsmb_start(sc, PIIX4_SMBHSTCNT_PROT_BLOCK, 0);
	error = intsmb_stop(sc);
	INTSMB_UNLOCK(sc);
	return (error);
}

Example #2

File: intpm.c Project: nomadlogic/freebsd-base-graphics

static int
intsmb_recvb(device_t dev, u_char slave, char *byte)
{
	struct intsmb_softc *sc = device_get_softc(dev);
	int error;

	INTSMB_LOCK(sc);
	error = intsmb_free(sc);
	if (error) {
		INTSMB_UNLOCK(sc);
		return (error);
	}
	bus_write_1(sc->io_res, PIIX4_SMBHSTADD, slave | LSB);
	intsmb_start(sc, PIIX4_SMBHSTCNT_PROT_BYTE, 0);
	error = intsmb_stop(sc);
	if (error == 0) {
#ifdef RECV_IS_IN_CMD
		/*
		 * Linux SMBus stuff also troubles
		 * Because Intel's datasheet does not make clear.
		 */
		*byte = bus_read_1(sc->io_res, PIIX4_SMBHSTCMD);
#else
		*byte = bus_read_1(sc->io_res, PIIX4_SMBHSTDAT0);
#endif
	}
	INTSMB_UNLOCK(sc);
	return (error);
}

Example #3

File: intpm.c Project: nomadlogic/freebsd-base-graphics

/*
 * Data sheet claims that it implements all function, but also claims
 * that it implements 7 function and not mention PCALL. So I don't know
 * whether it will work.
 */
static int
intsmb_pcall(device_t dev, u_char slave, char cmd, short sdata, short *rdata)
{
#ifdef PROCCALL_TEST
	struct intsmb_softc *sc = device_get_softc(dev);
	int error;

	INTSMB_LOCK(sc);
	error = intsmb_free(sc);
	if (error) {
		INTSMB_UNLOCK(sc);
		return (error);
	}
	bus_write_1(sc->io_res, PIIX4_SMBHSTADD, slave & ~LSB);
	bus_write_1(sc->io_res, PIIX4_SMBHSTCMD, cmd);
	bus_write_1(sc->io_res, PIIX4_SMBHSTDAT0, sdata & 0xff);
	bus_write_1(sc->io_res, PIIX4_SMBHSTDAT1, (sdata & 0xff) >> 8);
	intsmb_start(sc, PIIX4_SMBHSTCNT_PROT_WDATA, 0);
	error = intsmb_stop(sc);
	if (error == 0) {
		*rdata = bus_read_1(sc->io_res, PIIX4_SMBHSTDAT0);
		*rdata |= bus_read_1(sc->io_res, PIIX4_SMBHSTDAT1) << 8;
	}
	INTSMB_UNLOCK(sc);
	return (error);
#else
	return (SMB_ENOTSUPP);
#endif
}

Example #4

File: intpm.c Project: nomadlogic/freebsd-base-graphics

static int
intsmb_quick(device_t dev, u_char slave, int how)
{
	struct intsmb_softc *sc = device_get_softc(dev);
	int error;
	u_char data;

	data = slave;

	/* Quick command is part of Address, I think. */
	switch(how) {
	case SMB_QWRITE:
		data &= ~LSB;
		break;
	case SMB_QREAD:
		data |= LSB;
		break;
	default:
		return (SMB_EINVAL);
	}

	INTSMB_LOCK(sc);
	error = intsmb_free(sc);
	if (error) {
		INTSMB_UNLOCK(sc);
		return (error);
	}
	bus_write_1(sc->io_res, PIIX4_SMBHSTADD, data);
	intsmb_start(sc, PIIX4_SMBHSTCNT_PROT_QUICK, 0);
	error = intsmb_stop(sc);
	INTSMB_UNLOCK(sc);
	return (error);
}

Example #5

File: intpm.c Project: FreeBSDFoundation/freebsd

static int
intsmb_bread(device_t dev, u_char slave, char cmd, u_char *count, char *buf)
{
	struct intsmb_softc *sc = device_get_softc(dev);
	int error, i;
	u_char data, nread;

	INTSMB_LOCK(sc);
	error = intsmb_free(sc);
	if (error) {
		INTSMB_UNLOCK(sc);
		return (error);
	}

	/* Reset internal array index. */
	bus_read_1(sc->io_res, PIIX4_SMBHSTCNT);

	bus_write_1(sc->io_res, PIIX4_SMBHSTADD, slave | LSB);
	bus_write_1(sc->io_res, PIIX4_SMBHSTCMD, cmd);
	intsmb_start(sc, PIIX4_SMBHSTCNT_PROT_BLOCK, 0);
	error = intsmb_stop(sc);
	if (error == 0) {
		nread = bus_read_1(sc->io_res, PIIX4_SMBHSTDAT0);
		if (nread != 0 && nread <= SMBBLOCKTRANS_MAX) {
			*count = nread;
			for (i = 0; i < nread; i++)
				data = bus_read_1(sc->io_res, PIIX4_SMBBLKDAT);
		} else
			error = SMB_EBUSERR;
	}
	INTSMB_UNLOCK(sc);
	return (error);
}

Example #6

File: intpm.c Project: nomadlogic/freebsd-base-graphics

static int
intsmb_sendb(device_t dev, u_char slave, char byte)
{
	struct intsmb_softc *sc = device_get_softc(dev);
	int error;

	INTSMB_LOCK(sc);
	error = intsmb_free(sc);
	if (error) {
		INTSMB_UNLOCK(sc);
		return (error);
	}
	bus_write_1(sc->io_res, PIIX4_SMBHSTADD, slave & ~LSB);
	bus_write_1(sc->io_res, PIIX4_SMBHSTCMD, byte);
	intsmb_start(sc, PIIX4_SMBHSTCNT_PROT_BYTE, 0);
	error = intsmb_stop(sc);
	INTSMB_UNLOCK(sc);
	return (error);
}

Example #7

File: intpm.c Project: nomadlogic/freebsd-base-graphics

static int
intsmb_readb(device_t dev, u_char slave, char cmd, char *byte)
{
	struct intsmb_softc *sc = device_get_softc(dev);
	int error;

	INTSMB_LOCK(sc);
	error = intsmb_free(sc);
	if (error) {
		INTSMB_UNLOCK(sc);
		return (error);
	}
	bus_write_1(sc->io_res, PIIX4_SMBHSTADD, slave | LSB);
	bus_write_1(sc->io_res, PIIX4_SMBHSTCMD, cmd);
	intsmb_start(sc, PIIX4_SMBHSTCNT_PROT_BDATA, 0);
	error = intsmb_stop(sc);
	if (error == 0)
		*byte = bus_read_1(sc->io_res, PIIX4_SMBHSTDAT0);
	INTSMB_UNLOCK(sc);
	return (error);
}

Example #8

File: intpm.c Project: nomadlogic/freebsd-base-graphics

static int
intsmb_writew(device_t dev, u_char slave, char cmd, short word)
{
	struct intsmb_softc *sc = device_get_softc(dev);
	int error;

	INTSMB_LOCK(sc);
	error = intsmb_free(sc);
	if (error) {
		INTSMB_UNLOCK(sc);
		return (error);
	}
	bus_write_1(sc->io_res, PIIX4_SMBHSTADD, slave & ~LSB);
	bus_write_1(sc->io_res, PIIX4_SMBHSTCMD, cmd);
	bus_write_1(sc->io_res, PIIX4_SMBHSTDAT0, word & 0xff);
	bus_write_1(sc->io_res, PIIX4_SMBHSTDAT1, (word >> 8) & 0xff);
	intsmb_start(sc, PIIX4_SMBHSTCNT_PROT_WDATA, 0);
	error = intsmb_stop(sc);
	INTSMB_UNLOCK(sc);
	return (error);
}

Example #9

File: intpm.c Project: nomadlogic/freebsd-base-graphics

static void
intsmb_alrintr(struct intsmb_softc *sc)
{
	int slvcnt;
#ifdef ENABLE_ALART
	int error;
	uint8_t addr;
#endif

	/* Stop generating INTR from ALART. */
	slvcnt = bus_read_1(sc->io_res, PIIX4_SMBSLVCNT);
#ifdef ENABLE_ALART
	bus_write_1(sc->io_res, PIIX4_SMBSLVCNT,
	    slvcnt & ~PIIX4_SMBSLVCNT_ALTEN);
#endif
	DELAY(5);

	/* Ask bus who asserted it and then ask it what's the matter. */
#ifdef ENABLE_ALART
	error = intsmb_free(sc);
	if (error)
		return;

	bus_write_1(sc->io_res, PIIX4_SMBHSTADD, SMBALTRESP | LSB);
	intsmb_start(sc, PIIX4_SMBHSTCNT_PROT_BYTE, 1);
	error = intsmb_stop_poll(sc);
	if (error)
		device_printf(sc->dev, "ALART: ERROR\n");
	else {
		addr = bus_read_1(sc->io_res, PIIX4_SMBHSTDAT0);
		device_printf(sc->dev, "ALART_RESPONSE: 0x%x\n", addr);
	}

	/* Re-enable INTR from ALART. */
	bus_write_1(sc->io_res, PIIX4_SMBSLVCNT,
	    slvcnt | PIIX4_SMBSLVCNT_ALTEN);
	DELAY(5);
#endif
}

Example #10

File: intpm.c Project: nomadlogic/freebsd-base-graphics

static int
intsmb_readw(device_t dev, u_char slave, char cmd, short *word)
{
	struct intsmb_softc *sc = device_get_softc(dev);
	int error;

	INTSMB_LOCK(sc);
	error = intsmb_free(sc);
	if (error) {
		INTSMB_UNLOCK(sc);
		return (error);
	}
	bus_write_1(sc->io_res, PIIX4_SMBHSTADD, slave | LSB);
	bus_write_1(sc->io_res, PIIX4_SMBHSTCMD, cmd);
	intsmb_start(sc, PIIX4_SMBHSTCNT_PROT_WDATA, 0);
	error = intsmb_stop(sc);
	if (error == 0) {
		*word = bus_read_1(sc->io_res, PIIX4_SMBHSTDAT0);
		*word |= bus_read_1(sc->io_res, PIIX4_SMBHSTDAT1) << 8;
	}
	INTSMB_UNLOCK(sc);
	return (error);
}