svn commit: r308219 - head/sys/dev/ichiic
Andriy Gapon
avg at FreeBSD.org
Wed Nov 2 17:04:02 UTC 2016
Author: avg
Date: Wed Nov 2 17:04:00 2016
New Revision: 308219
URL: https://svnweb.freebsd.org/changeset/base/308219
Log:
ichiic/ig4: completely disengage from smbus
MFC after: 5 weeks
Modified:
head/sys/dev/ichiic/ig4_iic.c
head/sys/dev/ichiic/ig4_pci.c
head/sys/dev/ichiic/ig4_reg.h
head/sys/dev/ichiic/ig4_var.h
Modified: head/sys/dev/ichiic/ig4_iic.c
==============================================================================
--- head/sys/dev/ichiic/ig4_iic.c Wed Nov 2 16:15:49 2016 (r308218)
+++ head/sys/dev/ichiic/ig4_iic.c Wed Nov 2 17:04:00 2016 (r308219)
@@ -37,7 +37,7 @@
__FBSDID("$FreeBSD$");
/*
- * Intel fourth generation mobile cpus integrated I2C device, smbus driver.
+ * Intel fourth generation mobile cpus integrated I2C deviceer.
*
* See ig4_reg.h for datasheet reference and notes.
* See ig4_var.h for locking semantics.
@@ -60,7 +60,6 @@ __FBSDID("$FreeBSD$");
#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
-#include <dev/smbus/smbconf.h>
#include <dev/iicbus/iicbus.h>
#include <dev/iicbus/iiconf.h>
@@ -236,18 +235,13 @@ data_read(ig4iic_softc_t *sc)
* the target address for when the controller later issues a START.
*/
static void
-set_slave_addr(ig4iic_softc_t *sc, uint8_t slave, int trans_op)
+set_slave_addr(ig4iic_softc_t *sc, uint8_t slave)
{
uint32_t tar;
uint32_t ctl;
int use_10bit;
- use_10bit = sc->use_10bit;
- if (trans_op & SMB_TRANS_7BIT)
- use_10bit = 0;
- if (trans_op & SMB_TRANS_10BIT)
- use_10bit = 1;
-
+ use_10bit = 0;
if (sc->slave_valid && sc->last_slave == slave &&
sc->use_10bit == use_10bit) {
return;
@@ -291,208 +285,12 @@ set_slave_addr(ig4iic_softc_t *sc, uint8
}
/*
- * Issue START with byte command, possible count, and a variable length
- * read or write buffer, then possible turn-around read. The read also
- * has a possible count received.
- *
- * For SMBUS -
- *
- * Quick: START+ADDR+RD/WR STOP
- *
- * Normal: START+ADDR+WR CMD DATA..DATA STOP
- *
- * START+ADDR+RD CMD
- * RESTART+ADDR RDATA..RDATA STOP
- * (can also be used for I2C transactions)
- *
- * Process Call: START+ADDR+WR CMD DATAL DATAH
- * RESTART+ADDR+RD RDATAL RDATAH STOP
- *
- * Block: START+ADDR+RD CMD
- * RESTART+ADDR+RD RCOUNT DATA... STOP
- *
- * START+ADDR+WR CMD
- * RESTART+ADDR+WR WCOUNT DATA... STOP
- *
- * For I2C - basically, no *COUNT fields, possibly no *CMD field. If the
- * sender needs to issue a 2-byte command it will incorporate it
- * into the write buffer and also set NOCMD.
- *
- * Generally speaking, the START+ADDR / RESTART+ADDR is handled automatically
- * by the controller at the beginning of a command sequence or on a data
- * direction turn-around, and we only need to tell it when to issue the STOP.
- */
-static int
-smb_transaction(ig4iic_softc_t *sc, char cmd, int op,
- char *wbuf, int wcount, char *rbuf, int rcount, int *actualp)
-{
- int error;
- int unit;
- uint32_t last;
-
- /*
- * Debugging - dump registers
- */
- if (ig4_dump) {
- unit = device_get_unit(sc->dev);
- if (ig4_dump & (1 << unit)) {
- ig4_dump &= ~(1 << unit);
- ig4iic_dump(sc);
- }
- }
-
- /*
- * Issue START or RESTART with next data byte, clear any previous
- * abort condition that may have been holding the txfifo in reset.
- */
- last = IG4_DATA_RESTART;
- reg_read(sc, IG4_REG_CLR_TX_ABORT);
- if (actualp)
- *actualp = 0;
-
- /*
- * Issue command if not told otherwise (smbus).
- */
- if ((op & SMB_TRANS_NOCMD) == 0) {
- error = wait_status(sc, IG4_STATUS_TX_NOTFULL);
- if (error)
- goto done;
- last |= (u_char)cmd;
- if (wcount == 0 && rcount == 0 && (op & SMB_TRANS_NOSTOP) == 0)
- last |= IG4_DATA_STOP;
- reg_write(sc, IG4_REG_DATA_CMD, last);
- last = 0;
- }
-
- /*
- * Clean out any previously received data.
- */
- if (sc->rpos != sc->rnext &&
- (op & SMB_TRANS_NOREPORT) == 0) {
- device_printf(sc->dev,
- "discarding %d bytes of spurious data\n",
- sc->rnext - sc->rpos);
- }
- sc->rpos = 0;
- sc->rnext = 0;
-
- /*
- * If writing and not told otherwise, issue the write count (smbus).
- */
- if (wcount && (op & SMB_TRANS_NOCNT) == 0) {
- error = wait_status(sc, IG4_STATUS_TX_NOTFULL);
- if (error)
- goto done;
- last |= (u_char)cmd;
- reg_write(sc, IG4_REG_DATA_CMD, last);
- last = 0;
- }
-
- /*
- * Bulk write (i2c)
- */
- while (wcount) {
- error = wait_status(sc, IG4_STATUS_TX_NOTFULL);
- if (error)
- goto done;
- last |= (u_char)*wbuf;
- if (wcount == 1 && rcount == 0 && (op & SMB_TRANS_NOSTOP) == 0)
- last |= IG4_DATA_STOP;
- reg_write(sc, IG4_REG_DATA_CMD, last);
- --wcount;
- ++wbuf;
- last = 0;
- }
-
- /*
- * Issue reads to xmit FIFO (strange, I know) to tell the controller
- * to clock in data. At the moment just issue one read ahead to
- * pipeline the incoming data.
- *
- * NOTE: In the case of NOCMD and wcount == 0 we still issue a
- * RESTART here, even if the data direction has not changed
- * from the previous CHAINing call. This we force the RESTART.
- * (A new START is issued automatically by the controller in
- * the other nominal cases such as a data direction change or
- * a previous STOP was issued).
- *
- * If this will be the last byte read we must also issue the STOP
- * at the end of the read.
- */
- if (rcount) {
- last = IG4_DATA_RESTART | IG4_DATA_COMMAND_RD;
- if (rcount == 1 &&
- (op & (SMB_TRANS_NOSTOP | SMB_TRANS_NOCNT)) ==
- SMB_TRANS_NOCNT) {
- last |= IG4_DATA_STOP;
- }
- reg_write(sc, IG4_REG_DATA_CMD, last);
- last = IG4_DATA_COMMAND_RD;
- }
-
- /*
- * Bulk read (i2c) and count field handling (smbus)
- */
- while (rcount) {
- /*
- * Maintain a pipeline by queueing the allowance for the next
- * read before waiting for the current read.
- */
- if (rcount > 1) {
- if (op & SMB_TRANS_NOCNT)
- last = (rcount == 2) ? IG4_DATA_STOP : 0;
- else
- last = 0;
- reg_write(sc, IG4_REG_DATA_CMD, IG4_DATA_COMMAND_RD |
- last);
- }
- error = wait_status(sc, IG4_STATUS_RX_NOTEMPTY);
- if (error) {
- if ((op & SMB_TRANS_NOREPORT) == 0) {
- device_printf(sc->dev,
- "rx timeout addr 0x%02x\n",
- sc->last_slave);
- }
- goto done;
- }
- last = data_read(sc);
-
- if (op & SMB_TRANS_NOCNT) {
- *rbuf = (u_char)last;
- ++rbuf;
- --rcount;
- if (actualp)
- ++*actualp;
- } else {
- /*
- * Handle count field (smbus), which is not part of
- * the rcount'ed buffer. The first read data in a
- * bulk transfer is the count.
- *
- * XXX if rcount is loaded as 0 how do I generate a
- * STOP now without issuing another RD or WR?
- */
- if (rcount > (u_char)last)
- rcount = (u_char)last;
- op |= SMB_TRANS_NOCNT;
- }
- }
- error = 0;
-done:
- /* XXX wait for xmit buffer to become empty */
- last = reg_read(sc, IG4_REG_TX_ABRT_SOURCE);
-
- return (error);
-}
-
-/*
* IICBUS API FUNCTIONS
*/
static int
ig4iic_xfer_start(ig4iic_softc_t *sc, uint16_t slave)
{
- /* XXX 10-bit address support? */
- set_slave_addr(sc, slave >> 1, 0);
+ set_slave_addr(sc, slave >> 1);
return (0);
}
@@ -706,7 +504,7 @@ ig4iic_reset(device_t dev, u_char speed,
/* TODO handle speed configuration? */
if (oldaddr != NULL)
*oldaddr = sc->last_slave << 1;
- set_slave_addr(sc, addr >> 1, 0);
+ set_slave_addr(sc, addr >> 1);
if (addr == IIC_UNKNOWN)
sc->slave_valid = false;
@@ -716,8 +514,6 @@ ig4iic_reset(device_t dev, u_char speed,
}
/*
- * SMBUS API FUNCTIONS
- *
* Called from ig4iic_pci_attach/detach()
*/
int
@@ -836,7 +632,6 @@ ig4iic_start(void *xdev)
config_intrhook_disestablish(&sc->enum_hook);
- /* Attach us to the smbus */
error = bus_generic_attach(sc->dev);
if (error) {
device_printf(sc->dev,
@@ -844,8 +639,6 @@ ig4iic_start(void *xdev)
}
}
-
-
int
ig4iic_detach(ig4iic_softc_t *sc)
{
@@ -874,276 +667,6 @@ ig4iic_detach(ig4iic_softc_t *sc)
return (0);
}
-int
-ig4iic_smb_callback(device_t dev, int index, void *data)
-{
- int error;
-
- switch (index) {
- case SMB_REQUEST_BUS:
- error = 0;
- break;
- case SMB_RELEASE_BUS:
- error = 0;
- break;
- default:
- error = SMB_EABORT;
- break;
- }
-
- return (error);
-}
-
-/*
- * Quick command. i.e. START + cmd + R/W + STOP and no data. It is
- * unclear to me how I could implement this with the intel i2c controller
- * because the controller sends STARTs and STOPs automatically with data.
- */
-int
-ig4iic_smb_quick(device_t dev, u_char slave, int how)
-{
-
- return (SMB_ENOTSUPP);
-}
-
-/*
- * Incremental send byte without stop (?). It is unclear why the slave
- * address is specified if this presumably is used in combination with
- * ig4iic_smb_quick().
- *
- * (Also, how would this work anyway? Issue the last byte with writeb()?)
- */
-int
-ig4iic_smb_sendb(device_t dev, u_char slave, char byte)
-{
- ig4iic_softc_t *sc = device_get_softc(dev);
- uint32_t cmd;
- int error;
-
- sx_xlock(&sc->call_lock);
- mtx_lock(&sc->io_lock);
-
- set_slave_addr(sc, slave, 0);
- cmd = byte;
- if (wait_status(sc, IG4_STATUS_TX_NOTFULL) == 0) {
- reg_write(sc, IG4_REG_DATA_CMD, cmd);
- error = 0;
- } else {
- error = SMB_ETIMEOUT;
- }
-
- mtx_unlock(&sc->io_lock);
- sx_xunlock(&sc->call_lock);
- return (error);
-}
-
-/*
- * Incremental receive byte without stop (?). It is unclear why the slave
- * address is specified if this presumably is used in combination with
- * ig4iic_smb_quick().
- */
-int
-ig4iic_smb_recvb(device_t dev, u_char slave, char *byte)
-{
- ig4iic_softc_t *sc = device_get_softc(dev);
- int error;
-
- sx_xlock(&sc->call_lock);
- mtx_lock(&sc->io_lock);
-
- set_slave_addr(sc, slave, 0);
- reg_write(sc, IG4_REG_DATA_CMD, IG4_DATA_COMMAND_RD);
- if (wait_status(sc, IG4_STATUS_RX_NOTEMPTY) == 0) {
- *byte = data_read(sc);
- error = 0;
- } else {
- *byte = 0;
- error = SMB_ETIMEOUT;
- }
-
- mtx_unlock(&sc->io_lock);
- sx_xunlock(&sc->call_lock);
- return (error);
-}
-
-/*
- * Write command and single byte in transaction.
- */
-int
-ig4iic_smb_writeb(device_t dev, u_char slave, char cmd, char byte)
-{
- ig4iic_softc_t *sc = device_get_softc(dev);
- int error;
-
- sx_xlock(&sc->call_lock);
- mtx_lock(&sc->io_lock);
-
- set_slave_addr(sc, slave, 0);
- error = smb_transaction(sc, cmd, SMB_TRANS_NOCNT,
- &byte, 1, NULL, 0, NULL);
-
- mtx_unlock(&sc->io_lock);
- sx_xunlock(&sc->call_lock);
- return (error);
-}
-
-/*
- * Write command and single word in transaction.
- */
-int
-ig4iic_smb_writew(device_t dev, u_char slave, char cmd, short word)
-{
- ig4iic_softc_t *sc = device_get_softc(dev);
- char buf[2];
- int error;
-
- sx_xlock(&sc->call_lock);
- mtx_lock(&sc->io_lock);
-
- set_slave_addr(sc, slave, 0);
- buf[0] = word & 0xFF;
- buf[1] = word >> 8;
- error = smb_transaction(sc, cmd, SMB_TRANS_NOCNT,
- buf, 2, NULL, 0, NULL);
-
- mtx_unlock(&sc->io_lock);
- sx_xunlock(&sc->call_lock);
- return (error);
-}
-
-/*
- * write command and read single byte in transaction.
- */
-int
-ig4iic_smb_readb(device_t dev, u_char slave, char cmd, char *byte)
-{
- ig4iic_softc_t *sc = device_get_softc(dev);
- int error;
-
- sx_xlock(&sc->call_lock);
- mtx_lock(&sc->io_lock);
-
- set_slave_addr(sc, slave, 0);
- error = smb_transaction(sc, cmd, SMB_TRANS_NOCNT,
- NULL, 0, byte, 1, NULL);
-
- mtx_unlock(&sc->io_lock);
- sx_xunlock(&sc->call_lock);
- return (error);
-}
-
-/*
- * write command and read word in transaction.
- */
-int
-ig4iic_smb_readw(device_t dev, u_char slave, char cmd, short *word)
-{
- ig4iic_softc_t *sc = device_get_softc(dev);
- char buf[2];
- int error;
-
- sx_xlock(&sc->call_lock);
- mtx_lock(&sc->io_lock);
-
- set_slave_addr(sc, slave, 0);
- if ((error = smb_transaction(sc, cmd, SMB_TRANS_NOCNT,
- NULL, 0, buf, 2, NULL)) == 0) {
- *word = (u_char)buf[0] | ((u_char)buf[1] << 8);
- }
-
- mtx_unlock(&sc->io_lock);
- sx_xunlock(&sc->call_lock);
- return (error);
-}
-
-/*
- * write command and word and read word in transaction
- */
-int
-ig4iic_smb_pcall(device_t dev, u_char slave, char cmd,
- short sdata, short *rdata)
-{
- ig4iic_softc_t *sc = device_get_softc(dev);
- char rbuf[2];
- char wbuf[2];
- int error;
-
- sx_xlock(&sc->call_lock);
- mtx_lock(&sc->io_lock);
-
- set_slave_addr(sc, slave, 0);
- wbuf[0] = sdata & 0xFF;
- wbuf[1] = sdata >> 8;
- if ((error = smb_transaction(sc, cmd, SMB_TRANS_NOCNT,
- wbuf, 2, rbuf, 2, NULL)) == 0) {
- *rdata = (u_char)rbuf[0] | ((u_char)rbuf[1] << 8);
- }
-
- mtx_unlock(&sc->io_lock);
- sx_xunlock(&sc->call_lock);
- return (error);
-}
-
-int
-ig4iic_smb_bwrite(device_t dev, u_char slave, char cmd,
- u_char wcount, char *buf)
-{
- ig4iic_softc_t *sc = device_get_softc(dev);
- int error;
-
- sx_xlock(&sc->call_lock);
- mtx_lock(&sc->io_lock);
-
- set_slave_addr(sc, slave, 0);
- error = smb_transaction(sc, cmd, 0,
- buf, wcount, NULL, 0, NULL);
-
- mtx_unlock(&sc->io_lock);
- sx_xunlock(&sc->call_lock);
- return (error);
-}
-
-int
-ig4iic_smb_bread(device_t dev, u_char slave, char cmd,
- u_char *countp_char, char *buf)
-{
- ig4iic_softc_t *sc = device_get_softc(dev);
- int rcount = *countp_char;
- int error;
-
- sx_xlock(&sc->call_lock);
- mtx_lock(&sc->io_lock);
-
- set_slave_addr(sc, slave, 0);
- error = smb_transaction(sc, cmd, 0,
- NULL, 0, buf, rcount, &rcount);
- *countp_char = rcount;
-
- mtx_unlock(&sc->io_lock);
- sx_xunlock(&sc->call_lock);
- return (error);
-}
-
-int
-ig4iic_smb_trans(device_t dev, int slave, char cmd, int op,
- char *wbuf, int wcount, char *rbuf, int rcount,
- int *actualp)
-{
- ig4iic_softc_t *sc = device_get_softc(dev);
- int error;
-
- sx_xlock(&sc->call_lock);
- mtx_lock(&sc->io_lock);
-
- set_slave_addr(sc, slave, op);
- error = smb_transaction(sc, cmd, op,
- wbuf, wcount, rbuf, rcount, actualp);
-
- mtx_unlock(&sc->io_lock);
- sx_xunlock(&sc->call_lock);
- return (error);
-}
-
/*
* Interrupt Operation, see ig4_var.h for locking semantics.
*/
Modified: head/sys/dev/ichiic/ig4_pci.c
==============================================================================
--- head/sys/dev/ichiic/ig4_pci.c Wed Nov 2 16:15:49 2016 (r308218)
+++ head/sys/dev/ichiic/ig4_pci.c Wed Nov 2 17:04:00 2016 (r308219)
@@ -37,7 +37,7 @@
__FBSDID("$FreeBSD$");
/*
- * Intel fourth generation mobile cpus integrated I2C device, smbus driver.
+ * Intel fourth generation mobile cpus integrated I2C device.
*
* See ig4_reg.h for datasheet reference and notes.
*/
@@ -59,11 +59,8 @@ __FBSDID("$FreeBSD$");
#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
-#include <dev/smbus/smbconf.h>
#include <dev/iicbus/iiconf.h>
-#include "smbus_if.h"
-
#include <dev/ichiic/ig4_reg.h>
#include <dev/ichiic/ig4_var.h>
@@ -167,20 +164,6 @@ static device_method_t ig4iic_pci_method
DEVMETHOD(device_attach, ig4iic_pci_attach),
DEVMETHOD(device_detach, ig4iic_pci_detach),
- /* SMBus methods from ig4_smb.c */
- DEVMETHOD(smbus_callback, ig4iic_smb_callback),
- DEVMETHOD(smbus_quick, ig4iic_smb_quick),
- DEVMETHOD(smbus_sendb, ig4iic_smb_sendb),
- DEVMETHOD(smbus_recvb, ig4iic_smb_recvb),
- DEVMETHOD(smbus_writeb, ig4iic_smb_writeb),
- DEVMETHOD(smbus_writew, ig4iic_smb_writew),
- DEVMETHOD(smbus_readb, ig4iic_smb_readb),
- DEVMETHOD(smbus_readw, ig4iic_smb_readw),
- DEVMETHOD(smbus_pcall, ig4iic_smb_pcall),
- DEVMETHOD(smbus_bwrite, ig4iic_smb_bwrite),
- DEVMETHOD(smbus_bread, ig4iic_smb_bread),
- DEVMETHOD(smbus_trans, ig4iic_smb_trans),
-
DEVMETHOD(iicbus_transfer, ig4iic_transfer),
DEVMETHOD(iicbus_reset, ig4iic_reset),
DEVMETHOD(iicbus_callback, iicbus_null_callback),
@@ -199,6 +182,5 @@ static devclass_t ig4iic_pci_devclass;
DRIVER_MODULE_ORDERED(ig4iic, pci, ig4iic_pci_driver, ig4iic_pci_devclass, 0, 0,
SI_ORDER_ANY);
MODULE_DEPEND(ig4iic, pci, 1, 1, 1);
-MODULE_DEPEND(ig4iic, smbus, SMBUS_MINVER, SMBUS_PREFVER, SMBUS_MAXVER);
MODULE_DEPEND(ig4iic, iicbus, IICBUS_MINVER, IICBUS_PREFVER, IICBUS_MAXVER);
MODULE_VERSION(ig4iic, 1);
Modified: head/sys/dev/ichiic/ig4_reg.h
==============================================================================
--- head/sys/dev/ichiic/ig4_reg.h Wed Nov 2 16:15:49 2016 (r308218)
+++ head/sys/dev/ichiic/ig4_reg.h Wed Nov 2 17:04:00 2016 (r308219)
@@ -47,14 +47,14 @@
* I am also using the linux driver code as a reference to help resolve any
* issues that come. These will be specifically documented in the code.
*
- * Please see protocol notes in section 5.21. This controller is an I2C
- * master only and cannot act as a slave. The IO voltage should be set by
- * the BIOS. Standard (100Kb/s) and Fast (400Kb/s) and fast mode plus
- * (1MB/s) is supported. High speed mode (3.4 MB/s) is NOT supported.
+ * This controller is an I2C master only and cannot act as a slave. The IO
+ * voltage should be set by the BIOS. Standard (100Kb/s) and Fast (400Kb/s)
+ * and fast mode plus (1MB/s) is supported. High speed mode (3.4 MB/s) is NOT
+ * supported.
*/
-#ifndef _BUS_SMBUS_INTELGEN4_IG4_REG_H_
-#define _BUS_SMBUS_INTELGEN4_IG4_REG_H_
+#ifndef _ICHIIC_IG4_REG_H_
+#define _ICHIIC_IG4_REG_H_
/*
* 22.2 MMIO registers can be accessed through BAR0 in PCI mode or through
@@ -619,4 +619,4 @@
#define IG4_SWLTR_SNOOP_VALUE_DECODE(v) ((v) & 0x3F)
#define IG4_SWLTR_SNOOP_VALUE_ENCODE(v) ((v) & 0x3F)
-#endif
+#endif /* _ICHIIC_IG4_REG_H_ */
Modified: head/sys/dev/ichiic/ig4_var.h
==============================================================================
--- head/sys/dev/ichiic/ig4_var.h Wed Nov 2 16:15:49 2016 (r308218)
+++ head/sys/dev/ichiic/ig4_var.h Wed Nov 2 17:04:00 2016 (r308219)
@@ -35,13 +35,12 @@
* $FreeBSD$
*/
-#ifndef _BUS_SMBUS_INTELGEN4_IG4_VAR_H_
-#define _BUS_SMBUS_INTELGEN4_IG4_VAR_H_
+#ifndef _ICHIIC_IG4_VAR_H_
+#define _ICHIIC_IG4_VAR_H_
#include "bus_if.h"
#include "device_if.h"
#include "pci_if.h"
-#include "smbus_if.h"
#include "iicbus_if.h"
#define IG4_RBUFSIZE 128
@@ -75,12 +74,12 @@ struct ig4iic_softc {
/*
* Locking semantics:
*
- * Functions implementing the smbus interface that interact
+ * Functions implementing the icbus interface that interact
* with the controller acquire an exclusive lock on call_lock
* to prevent interleaving of calls to the interface and a lock on
* io_lock right afterwards, to synchronize controller I/O activity.
- *
- * The interrupt handler can only read data while no ig4iic_smb_* call
+ *
+ * The interrupt handler can only read data while no iicbus call
* is in progress or while io_lock is dropped during mtx_sleep in
* wait_status and set_controller. It is safe to drop io_lock in those
* places, because the interrupt handler only accesses those registers:
@@ -91,7 +90,7 @@ struct ig4iic_softc {
*
* Locking outside of those places is required to make the content
* of rpos/rnext predictable (e.g. whenever data_read is called and in
- * smb_transaction).
+ * ig4iic_transfer).
*/
struct sx call_lock;
struct mtx io_lock;
@@ -103,20 +102,8 @@ typedef struct ig4iic_softc ig4iic_softc
int ig4iic_attach(ig4iic_softc_t *sc);
int ig4iic_detach(ig4iic_softc_t *sc);
-/* SMBus methods */
-extern smbus_callback_t ig4iic_smb_callback;
-extern smbus_quick_t ig4iic_smb_quick;
-extern smbus_sendb_t ig4iic_smb_sendb;
-extern smbus_recvb_t ig4iic_smb_recvb;
-extern smbus_writeb_t ig4iic_smb_writeb;
-extern smbus_writew_t ig4iic_smb_writew;
-extern smbus_readb_t ig4iic_smb_readb;
-extern smbus_readw_t ig4iic_smb_readw;
-extern smbus_pcall_t ig4iic_smb_pcall;
-extern smbus_bwrite_t ig4iic_smb_bwrite;
-extern smbus_bread_t ig4iic_smb_bread;
-extern smbus_trans_t ig4iic_smb_trans;
+/* iicbus methods */
extern iicbus_transfer_t ig4iic_transfer;
extern iicbus_reset_t ig4iic_reset;
-#endif
+#endif /* _ICHIIC_IG4_VAR_H_ */
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