Move amdsmb and nfsmb from dev/pci to their own device directory.

1 files changed, 585 insertions, 0 deletions

diff --git a/sys/dev/amdsmb/amdsmb.c b/sys/dev/amdsmb/amdsmb.c
new file mode 100644
index 0000000..264b11a
--- /dev/null
+++ b/sys/dev/amdsmb/amdsmb.c
@@ -0,0 +1,585 @@
+/*-
+ * Copyright (c) 2005 Ruslan Ermilov
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/bus.h>
+#include <sys/kernel.h>
+#include <sys/lock.h>
+#include <sys/module.h>
+#include <sys/mutex.h>
+#include <sys/systm.h>
+
+#include <machine/bus.h>
+#include <machine/resource.h>
+#include <sys/rman.h>
+
+#include <dev/pci/pcivar.h>
+#include <dev/pci/pcireg.h>
+
+#include <dev/smbus/smbconf.h>
+#include "smbus_if.h"
+
+#define	AMDSMB_DEBUG(x)	if (amdsmb_debug) (x)
+
+#ifdef DEBUG
+static int amdsmb_debug = 1;
+#else
+static int amdsmb_debug = 0;
+#endif
+
+#define	AMDSMB_VENDORID_AMD		0x1022
+#define	AMDSMB_DEVICEID_AMD8111_SMB2	0x746a
+
+/*
+ * ACPI 3.0, Chapter 12, Embedded Controller Interface.
+ */
+#define	EC_DATA		0x00	/* data register */
+#define	EC_SC		0x04	/* status of controller */
+#define	EC_CMD		0x04	/* command register */
+
+#define	EC_SC_IBF	0x02	/* data ready for embedded controller */
+#define	EC_SC_OBF	0x01	/* data ready for host */
+#define	EC_CMD_WR	0x81	/* write EC */
+#define	EC_CMD_RD	0x80	/* read EC */
+
+/*
+ * ACPI 3.0, Chapter 12, SMBus Host Controller Interface.
+ */
+#define	SMB_PRTCL	0x00	/* protocol */
+#define	SMB_STS		0x01	/* status */
+#define	SMB_ADDR	0x02	/* address */
+#define	SMB_CMD		0x03	/* command */
+#define	SMB_DATA	0x04	/* 32 data registers */
+#define	SMB_BCNT	0x24	/* number of data bytes */
+#define	SMB_ALRM_A	0x25	/* alarm address */
+#define	SMB_ALRM_D	0x26	/* 2 bytes alarm data */
+
+#define	SMB_STS_DONE	0x80
+#define	SMB_STS_ALRM	0x40
+#define	SMB_STS_RES	0x20
+#define	SMB_STS_STATUS	0x1f
+#define	SMB_STS_OK	0x00	/* OK */
+#define	SMB_STS_UF	0x07	/* Unknown Failure */
+#define	SMB_STS_DANA	0x10	/* Device Address Not Acknowledged */
+#define	SMB_STS_DED	0x11	/* Device Error Detected */
+#define	SMB_STS_DCAD	0x12	/* Device Command Access Denied */
+#define	SMB_STS_UE	0x13	/* Unknown Error */
+#define	SMB_STS_DAD	0x17	/* Device Access Denied */
+#define	SMB_STS_T	0x18	/* Timeout */
+#define	SMB_STS_HUP	0x19	/* Host Unsupported Protocol */
+#define	SMB_STS_B	0x1a	/* Busy */
+#define	SMB_STS_PEC	0x1f	/* PEC (CRC-8) Error */
+
+#define	SMB_PRTCL_WRITE			0x00
+#define	SMB_PRTCL_READ			0x01
+#define	SMB_PRTCL_QUICK			0x02
+#define	SMB_PRTCL_BYTE			0x04
+#define	SMB_PRTCL_BYTE_DATA		0x06
+#define	SMB_PRTCL_WORD_DATA		0x08
+#define	SMB_PRTCL_BLOCK_DATA		0x0a
+#define	SMB_PRTCL_PROC_CALL		0x0c
+#define	SMB_PRTCL_BLOCK_PROC_CALL	0x0d
+#define	SMB_PRTCL_PEC			0x80
+
+struct amdsmb_softc {
+	int rid;
+	struct resource *res;
+	device_t smbus;
+	struct mtx lock;
+};
+
+#define	AMDSMB_LOCK(amdsmb)		mtx_lock(&(amdsmb)->lock)
+#define	AMDSMB_UNLOCK(amdsmb)		mtx_unlock(&(amdsmb)->lock)
+#define	AMDSMB_LOCK_ASSERT(amdsmb)	mtx_assert(&(amdsmb)->lock, MA_OWNED)
+
+#define	AMDSMB_ECINB(amdsmb, register)					\
+	(bus_read_1(amdsmb->res, register))
+#define	AMDSMB_ECOUTB(amdsmb, register, value) \
+	(bus_write_1(amdsmb->res, register, value))
+
+static int	amdsmb_detach(device_t dev);
+
+static int
+amdsmb_probe(device_t dev)
+{
+	u_int16_t vid;
+	u_int16_t did;
+
+	vid = pci_get_vendor(dev);
+	did = pci_get_device(dev);
+
+	if (vid == AMDSMB_VENDORID_AMD) {
+		switch(did) {
+		case AMDSMB_DEVICEID_AMD8111_SMB2:
+			device_set_desc(dev, "AMD-8111 SMBus 2.0 Controller");
+			return (BUS_PROBE_DEFAULT);
+		}
+	}
+
+	return (ENXIO);
+}
+
+static int
+amdsmb_attach(device_t dev)
+{
+	struct amdsmb_softc *amdsmb_sc = device_get_softc(dev);
+
+	/* Allocate I/O space */
+	amdsmb_sc->rid = PCIR_BAR(0);
+	
+	amdsmb_sc->res = bus_alloc_resource_any(dev, SYS_RES_IOPORT,
+		&amdsmb_sc->rid, RF_ACTIVE);
+
+	if (amdsmb_sc->res == NULL) {
+		device_printf(dev, "could not map i/o space\n");
+		return (ENXIO);
+	}
+
+	mtx_init(&amdsmb_sc->lock, device_get_nameunit(dev), "amdsmb", MTX_DEF);
+
+	/* Allocate a new smbus device */
+	amdsmb_sc->smbus = device_add_child(dev, "smbus", -1);
+	if (!amdsmb_sc->smbus) {
+		amdsmb_detach(dev);
+		return (EINVAL);
+	}
+
+	bus_generic_attach(dev);
+
+	return (0);
+}
+
+static int
+amdsmb_detach(device_t dev)
+{
+	struct amdsmb_softc *amdsmb_sc = device_get_softc(dev);
+
+	if (amdsmb_sc->smbus) {
+		device_delete_child(dev, amdsmb_sc->smbus);
+		amdsmb_sc->smbus = NULL;
+	}
+
+	mtx_destroy(&amdsmb_sc->lock);
+	if (amdsmb_sc->res)
+		bus_release_resource(dev, SYS_RES_IOPORT, amdsmb_sc->rid,
+		    amdsmb_sc->res);
+
+	return (0);
+}
+
+static int
+amdsmb_callback(device_t dev, int index, void *data)
+{
+	int error = 0;
+
+	switch (index) {
+	case SMB_REQUEST_BUS:
+	case SMB_RELEASE_BUS:
+		break;
+	default:
+		error = EINVAL;
+	}
+
+	return (error);
+}
+
+static int
+amdsmb_ec_wait_write(struct amdsmb_softc *sc)
+{
+	int timeout = 500;
+
+	while (timeout-- && AMDSMB_ECINB(sc, EC_SC) & EC_SC_IBF)
+		DELAY(1);
+	if (timeout == 0) {
+		device_printf(sc->smbus, "timeout waiting for IBF to clear\n");
+		return (1);
+	}
+	return (0);
+}
+
+static int
+amdsmb_ec_wait_read(struct amdsmb_softc *sc)
+{
+	int timeout = 500;
+
+	while (timeout-- && ~AMDSMB_ECINB(sc, EC_SC) & EC_SC_OBF)
+		DELAY(1);
+	if (timeout == 0) {
+		device_printf(sc->smbus, "timeout waiting for OBF to set\n");
+		return (1);
+	}
+	return (0);
+}
+
+static int
+amdsmb_ec_read(struct amdsmb_softc *sc, u_char addr, u_char *data)
+{
+
+	AMDSMB_LOCK_ASSERT(sc);
+	if (amdsmb_ec_wait_write(sc))
+		return (1);
+	AMDSMB_ECOUTB(sc, EC_CMD, EC_CMD_RD);
+
+	if (amdsmb_ec_wait_write(sc))
+		return (1);
+	AMDSMB_ECOUTB(sc, EC_DATA, addr);
+
+	if (amdsmb_ec_wait_read(sc))
+		return (1);
+	*data = AMDSMB_ECINB(sc, EC_DATA);
+
+	return (0);
+}
+
+static int
+amdsmb_ec_write(struct amdsmb_softc *sc, u_char addr, u_char data)
+{
+
+	AMDSMB_LOCK_ASSERT(sc);
+	if (amdsmb_ec_wait_write(sc))
+		return (1);
+	AMDSMB_ECOUTB(sc, EC_CMD, EC_CMD_WR);
+
+	if (amdsmb_ec_wait_write(sc))
+		return (1);
+	AMDSMB_ECOUTB(sc, EC_DATA, addr);
+
+	if (amdsmb_ec_wait_write(sc))
+		return (1);
+	AMDSMB_ECOUTB(sc, EC_DATA, data);
+
+	return (0);
+}
+
+static int
+amdsmb_wait(struct amdsmb_softc *sc)
+{
+	u_char sts, temp;
+	int error, count;
+
+	AMDSMB_LOCK_ASSERT(sc);
+	amdsmb_ec_read(sc, SMB_PRTCL, &temp);
+	if (temp != 0)
+	{
+		count = 10000;
+		do {
+			DELAY(500);
+			amdsmb_ec_read(sc, SMB_PRTCL, &temp);
+		} while (temp != 0 && count--);
+		if (count == 0)
+			return (SMB_ETIMEOUT);
+	}
+
+	amdsmb_ec_read(sc, SMB_STS, &sts);
+	sts &= SMB_STS_STATUS;
+	AMDSMB_DEBUG(printf("amdsmb: STS=0x%x\n", sts));
+
+	switch (sts) {
+	case SMB_STS_OK:
+		error = SMB_ENOERR;
+		break;
+	case SMB_STS_DANA:
+		error = SMB_ENOACK;
+		break;
+	case SMB_STS_B:
+		error = SMB_EBUSY;
+		break;
+	case SMB_STS_T:
+		error = SMB_ETIMEOUT;
+		break;
+	case SMB_STS_DCAD:
+	case SMB_STS_DAD:
+	case SMB_STS_HUP:
+		error = SMB_ENOTSUPP;
+		break;
+	default:
+		error = SMB_EBUSERR;
+		break;
+	}
+
+	return (error);
+}
+
+static int
+amdsmb_quick(device_t dev, u_char slave, int how)
+{
+	struct amdsmb_softc *sc = (struct amdsmb_softc *)device_get_softc(dev);
+	u_char protocol;
+	int error;
+
+	protocol = SMB_PRTCL_QUICK;
+
+	switch (how) {
+	case SMB_QWRITE:
+		protocol |= SMB_PRTCL_WRITE;
+		AMDSMB_DEBUG(printf("amdsmb: QWRITE to 0x%x", slave));
+		break;
+	case SMB_QREAD:
+		protocol |= SMB_PRTCL_READ;
+		AMDSMB_DEBUG(printf("amdsmb: QREAD to 0x%x", slave));
+		break;
+	default:
+		panic("%s: unknown QUICK command (%x)!", __func__, how);
+	}
+
+	AMDSMB_LOCK(sc);
+	amdsmb_ec_write(sc, SMB_ADDR, slave);
+	amdsmb_ec_write(sc, SMB_PRTCL, protocol);
+
+	error = amdsmb_wait(sc);
+
+	AMDSMB_DEBUG(printf(", error=0x%x\n", error));
+	AMDSMB_UNLOCK(sc);
+
+	return (error);
+}
+
+static int
+amdsmb_sendb(device_t dev, u_char slave, char byte)
+{
+	struct amdsmb_softc *sc = (struct amdsmb_softc *)device_get_softc(dev);
+	int error;
+
+	AMDSMB_LOCK(sc);
+	amdsmb_ec_write(sc, SMB_CMD, byte);
+	amdsmb_ec_write(sc, SMB_ADDR, slave);
+	amdsmb_ec_write(sc, SMB_PRTCL, SMB_PRTCL_WRITE | SMB_PRTCL_BYTE);
+
+	error = amdsmb_wait(sc);
+
+	AMDSMB_DEBUG(printf("amdsmb: SENDB to 0x%x, byte=0x%x, error=0x%x\n",
+	   slave, byte, error));
+	AMDSMB_UNLOCK(sc);
+
+	return (error);
+}
+
+static int
+amdsmb_recvb(device_t dev, u_char slave, char *byte)
+{
+	struct amdsmb_softc *sc = (struct amdsmb_softc *)device_get_softc(dev);
+	int error;
+
+	AMDSMB_LOCK(sc);
+	amdsmb_ec_write(sc, SMB_ADDR, slave);
+	amdsmb_ec_write(sc, SMB_PRTCL, SMB_PRTCL_READ | SMB_PRTCL_BYTE);
+
+	if ((error = amdsmb_wait(sc)) == SMB_ENOERR)
+		amdsmb_ec_read(sc, SMB_DATA, byte);
+
+	AMDSMB_DEBUG(printf("amdsmb: RECVB from 0x%x, byte=0x%x, error=0x%x\n",
+	    slave, *byte, error));
+	AMDSMB_UNLOCK(sc);
+
+	return (error);
+}
+
+static int
+amdsmb_writeb(device_t dev, u_char slave, char cmd, char byte)
+{
+	struct amdsmb_softc *sc = (struct amdsmb_softc *)device_get_softc(dev);
+	int error;
+
+	AMDSMB_LOCK(sc);
+	amdsmb_ec_write(sc, SMB_CMD, cmd);
+	amdsmb_ec_write(sc, SMB_DATA, byte);
+	amdsmb_ec_write(sc, SMB_ADDR, slave);
+	amdsmb_ec_write(sc, SMB_PRTCL, SMB_PRTCL_WRITE | SMB_PRTCL_BYTE_DATA);
+
+	error = amdsmb_wait(sc);
+
+	AMDSMB_DEBUG(printf("amdsmb: WRITEB to 0x%x, cmd=0x%x, byte=0x%x, "
+	    "error=0x%x\n", slave, cmd, byte, error));
+	AMDSMB_UNLOCK(sc);
+
+	return (error);
+}
+
+static int
+amdsmb_readb(device_t dev, u_char slave, char cmd, char *byte)
+{
+	struct amdsmb_softc *sc = (struct amdsmb_softc *)device_get_softc(dev);
+	int error;
+
+	AMDSMB_LOCK(sc);
+	amdsmb_ec_write(sc, SMB_CMD, cmd);
+	amdsmb_ec_write(sc, SMB_ADDR, slave);
+	amdsmb_ec_write(sc, SMB_PRTCL, SMB_PRTCL_READ | SMB_PRTCL_BYTE_DATA);
+
+	if ((error = amdsmb_wait(sc)) == SMB_ENOERR)
+		amdsmb_ec_read(sc, SMB_DATA, byte);
+
+	AMDSMB_DEBUG(printf("amdsmb: READB from 0x%x, cmd=0x%x, byte=0x%x, "
+	    "error=0x%x\n", slave, cmd, (unsigned char)*byte, error));
+	AMDSMB_UNLOCK(sc);
+
+	return (error);
+}
+
+static int
+amdsmb_writew(device_t dev, u_char slave, char cmd, short word)
+{
+	struct amdsmb_softc *sc = (struct amdsmb_softc *)device_get_softc(dev);
+	int error;
+
+	AMDSMB_LOCK(sc);
+	amdsmb_ec_write(sc, SMB_CMD, cmd);
+	amdsmb_ec_write(sc, SMB_DATA, word);
+	amdsmb_ec_write(sc, SMB_DATA + 1, word >> 8);
+	amdsmb_ec_write(sc, SMB_ADDR, slave);
+	amdsmb_ec_write(sc, SMB_PRTCL, SMB_PRTCL_WRITE | SMB_PRTCL_WORD_DATA);
+
+	error = amdsmb_wait(sc);
+
+	AMDSMB_DEBUG(printf("amdsmb: WRITEW to 0x%x, cmd=0x%x, word=0x%x, "
+	    "error=0x%x\n", slave, cmd, word, error));
+	AMDSMB_UNLOCK(sc);
+
+	return (error);
+}
+
+static int
+amdsmb_readw(device_t dev, u_char slave, char cmd, short *word)
+{
+	struct amdsmb_softc *sc = (struct amdsmb_softc *)device_get_softc(dev);
+	u_char temp[2];
+	int error;
+
+	AMDSMB_LOCK(sc);
+	amdsmb_ec_write(sc, SMB_CMD, cmd);
+	amdsmb_ec_write(sc, SMB_ADDR, slave);
+	amdsmb_ec_write(sc, SMB_PRTCL, SMB_PRTCL_READ | SMB_PRTCL_WORD_DATA);
+
+	if ((error = amdsmb_wait(sc)) == SMB_ENOERR) {
+		amdsmb_ec_read(sc, SMB_DATA + 0, &temp[0]);
+		amdsmb_ec_read(sc, SMB_DATA + 1, &temp[1]);
+		*word = temp[0] | (temp[1] << 8);
+	}
+
+	AMDSMB_DEBUG(printf("amdsmb: READW from 0x%x, cmd=0x%x, word=0x%x, "
+	    "error=0x%x\n", slave, cmd, (unsigned short)*word, error));
+	AMDSMB_UNLOCK(sc);
+
+	return (error);
+}
+
+static int
+amdsmb_bwrite(device_t dev, u_char slave, char cmd, u_char count, char *buf)
+{
+	struct amdsmb_softc *sc = (struct amdsmb_softc *)device_get_softc(dev);
+	u_char i;
+	int error;
+
+	if (count < 1 || count > 32)
+		return (SMB_EINVAL);
+
+	AMDSMB_LOCK(sc);
+	amdsmb_ec_write(sc, SMB_CMD, cmd);
+	amdsmb_ec_write(sc, SMB_BCNT, count);
+	for (i = 0; i < count; i++)
+		amdsmb_ec_write(sc, SMB_DATA + i, buf[i]);
+	amdsmb_ec_write(sc, SMB_ADDR, slave);
+	amdsmb_ec_write(sc, SMB_PRTCL, SMB_PRTCL_WRITE | SMB_PRTCL_BLOCK_DATA);
+
+	error = amdsmb_wait(sc);
+
+	AMDSMB_DEBUG(printf("amdsmb: WRITEBLK to 0x%x, count=0x%x, cmd=0x%x, "
+	    "error=0x%x", slave, count, cmd, error));
+	AMDSMB_UNLOCK(sc);
+
+	return (error);
+}
+
+static int
+amdsmb_bread(device_t dev, u_char slave, char cmd, u_char *count, char *buf)
+{
+	struct amdsmb_softc *sc = (struct amdsmb_softc *)device_get_softc(dev);
+	u_char data, len, i;
+	int error;
+
+	if (*count < 1 || *count > 32)
+		return (SMB_EINVAL);
+
+	AMDSMB_LOCK(sc);
+	amdsmb_ec_write(sc, SMB_CMD, cmd);
+	amdsmb_ec_write(sc, SMB_ADDR, slave);
+	amdsmb_ec_write(sc, SMB_PRTCL, SMB_PRTCL_READ | SMB_PRTCL_BLOCK_DATA);
+
+	if ((error = amdsmb_wait(sc)) == SMB_ENOERR) {
+		amdsmb_ec_read(sc, SMB_BCNT, &len);
+		for (i = 0; i < len; i++) {
+			amdsmb_ec_read(sc, SMB_DATA + i, &data);
+			if (i < *count)
+				buf[i] = data;
+		}
+		*count = len;
+	}
+
+	AMDSMB_DEBUG(printf("amdsmb: READBLK to 0x%x, count=0x%x, cmd=0x%x, "
+	    "error=0x%x", slave, *count, cmd, error));
+	AMDSMB_UNLOCK(sc);
+
+	return (error);
+}
+
+static device_method_t amdsmb_methods[] = {
+	/* Device interface */
+	DEVMETHOD(device_probe,		amdsmb_probe),
+	DEVMETHOD(device_attach,	amdsmb_attach),
+	DEVMETHOD(device_detach,	amdsmb_detach),
+
+	/* SMBus interface */
+	DEVMETHOD(smbus_callback,	amdsmb_callback),
+	DEVMETHOD(smbus_quick,		amdsmb_quick),
+	DEVMETHOD(smbus_sendb,		amdsmb_sendb),
+	DEVMETHOD(smbus_recvb,		amdsmb_recvb),
+	DEVMETHOD(smbus_writeb,		amdsmb_writeb),
+	DEVMETHOD(smbus_readb,		amdsmb_readb),
+	DEVMETHOD(smbus_writew,		amdsmb_writew),
+	DEVMETHOD(smbus_readw,		amdsmb_readw),
+	DEVMETHOD(smbus_bwrite,		amdsmb_bwrite),
+	DEVMETHOD(smbus_bread,		amdsmb_bread),
+
+	{ 0, 0 }
+};
+
+static devclass_t amdsmb_devclass;
+
+static driver_t amdsmb_driver = {
+	"amdsmb",
+	amdsmb_methods,
+	sizeof(struct amdsmb_softc),
+};
+
+DRIVER_MODULE(amdsmb, pci, amdsmb_driver, amdsmb_devclass, 0, 0);
+DRIVER_MODULE(smbus, amdsmb, smbus_driver, smbus_devclass, 0, 0);
+
+MODULE_DEPEND(amdsmb, pci, 1, 1, 1);
+MODULE_DEPEND(amdsmb, smbus, SMBUS_MINVER, SMBUS_PREFVER, SMBUS_MAXVER);
+MODULE_VERSION(amdsmb, 1);