db9a485527
PR: kern/12631 Submitted by: Takanori Watanabe <takawata@shidahara1.planet.sci.kobe-u.ac.jp>
769 lines
23 KiB
C
769 lines
23 KiB
C
/*-
|
|
* Copyright (c) 1998, 1999 Takanori Watanabe
|
|
* 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.
|
|
*
|
|
* $Id: intpm.c,v 1.11 1999/07/03 20:17:06 peter Exp $
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <machine/bus_pio.h>
|
|
#include <machine/bus_memio.h>
|
|
#include <machine/bus.h>
|
|
|
|
#include <machine/clock.h>
|
|
#include <sys/uio.h>
|
|
#include <sys/module.h>
|
|
#include <sys/bus.h>
|
|
#include <sys/conf.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/buf.h>
|
|
#include <sys/rman.h>
|
|
#include <machine/resource.h>
|
|
#include <dev/smbus/smbconf.h>
|
|
|
|
#include "smbus_if.h"
|
|
|
|
/*This should be removed if force_pci_map_int supported*/
|
|
#include <sys/interrupt.h>
|
|
|
|
#include <pci/pcireg.h>
|
|
#include <pci/pcivar.h>
|
|
#include <pci/intpmreg.h>
|
|
|
|
#include "opt_intpm.h"
|
|
|
|
static struct _pcsid
|
|
{
|
|
pcidi_t type;
|
|
char *desc;
|
|
} pci_ids[] =
|
|
{
|
|
{ 0x71138086,"Intel 82371AB Power management controller"},
|
|
|
|
{ 0x00000000, NULL }
|
|
};
|
|
static int intsmb_probe(device_t);
|
|
static int intsmb_attach(device_t);
|
|
static void intsmb_print_child(device_t, device_t);
|
|
|
|
static int intsmb_intr(device_t dev);
|
|
static int intsmb_slvintr(device_t dev);
|
|
static void intsmb_alrintr(device_t dev);
|
|
static int intsmb_callback(device_t dev, int index, caddr_t data);
|
|
static int intsmb_quick(device_t dev, u_char slave, int how);
|
|
static int intsmb_sendb(device_t dev, u_char slave, char byte);
|
|
static int intsmb_recvb(device_t dev, u_char slave, char *byte);
|
|
static int intsmb_writeb(device_t dev, u_char slave, char cmd, char byte);
|
|
static int intsmb_writew(device_t dev, u_char slave, char cmd, short word);
|
|
static int intsmb_readb(device_t dev, u_char slave, char cmd, char *byte);
|
|
static int intsmb_readw(device_t dev, u_char slave, char cmd, short *word);
|
|
static int intsmb_pcall(device_t dev, u_char slave, char cmd, short sdata, short *rdata);
|
|
static int intsmb_bwrite(device_t dev, u_char slave, char cmd, u_char count, char *buf);
|
|
static int intsmb_bread(device_t dev, u_char slave, char cmd, u_char count, char *buf);
|
|
static void intsmb_start(device_t dev,u_char cmd,int nointr);
|
|
static int intsmb_stop(device_t dev);
|
|
static int intsmb_stop_poll(device_t dev);
|
|
static int intsmb_free(device_t dev);
|
|
static int intpm_probe (device_t dev);
|
|
static int intpm_attach (device_t dev);
|
|
static devclass_t intsmb_devclass;
|
|
|
|
static device_method_t intpm_methods[]={
|
|
DEVMETHOD(device_probe,intsmb_probe),
|
|
DEVMETHOD(device_attach,intsmb_attach),
|
|
|
|
DEVMETHOD(bus_print_child, intsmb_print_child),
|
|
|
|
DEVMETHOD(smbus_callback,intsmb_callback),
|
|
DEVMETHOD(smbus_quick,intsmb_quick),
|
|
DEVMETHOD(smbus_sendb,intsmb_sendb),
|
|
DEVMETHOD(smbus_recvb,intsmb_recvb),
|
|
DEVMETHOD(smbus_writeb,intsmb_writeb),
|
|
DEVMETHOD(smbus_writew,intsmb_writew),
|
|
DEVMETHOD(smbus_readb,intsmb_readb),
|
|
DEVMETHOD(smbus_readw,intsmb_readw),
|
|
DEVMETHOD(smbus_pcall,intsmb_pcall),
|
|
DEVMETHOD(smbus_bwrite,intsmb_bwrite),
|
|
DEVMETHOD(smbus_bread,intsmb_bread),
|
|
{0,0}
|
|
};
|
|
|
|
struct intpm_pci_softc{
|
|
bus_space_tag_t smbst;
|
|
bus_space_handle_t smbsh;
|
|
bus_space_tag_t pmst;
|
|
bus_space_handle_t pmsh;
|
|
pcici_t cfg;
|
|
device_t smbus;
|
|
};
|
|
|
|
|
|
struct intsmb_softc{
|
|
struct intpm_pci_softc *pci_sc;
|
|
bus_space_tag_t st;
|
|
bus_space_handle_t sh;
|
|
device_t smbus;
|
|
int isbusy;
|
|
};
|
|
|
|
static driver_t intpm_driver = {
|
|
"intsmb",
|
|
intpm_methods,
|
|
sizeof(struct intsmb_softc),
|
|
};
|
|
|
|
static devclass_t intpm_devclass;
|
|
static device_method_t intpm_pci_methods[] = {
|
|
DEVMETHOD(device_probe,intpm_probe),
|
|
DEVMETHOD(device_attach,intpm_attach),
|
|
{0,0}
|
|
};
|
|
static driver_t intpm_pci_driver = {
|
|
"intpm",
|
|
intpm_pci_methods,
|
|
sizeof(struct intpm_pci_softc)
|
|
};
|
|
|
|
static int
|
|
intsmb_probe(device_t dev)
|
|
{
|
|
struct intsmb_softc *sc =(struct intsmb_softc *) device_get_softc(dev);
|
|
sc->smbus=smbus_alloc_bus(dev);
|
|
if (!sc->smbus)
|
|
return (EINVAL); /* XXX don't know what to return else */
|
|
device_set_desc(dev,"Intel PIIX4 SMBUS Interface");
|
|
|
|
return (0); /* XXX don't know what to return else */
|
|
}
|
|
static int
|
|
intsmb_attach(device_t dev)
|
|
{
|
|
struct intsmb_softc *sc = (struct intsmb_softc *)device_get_softc(dev);
|
|
sc->pci_sc=device_get_softc(device_get_parent(dev));
|
|
sc->isbusy=0;
|
|
sc->sh=sc->pci_sc->smbsh;
|
|
sc->st=sc->pci_sc->smbst;
|
|
sc->pci_sc->smbus=dev;
|
|
device_probe_and_attach(sc->smbus);
|
|
#ifdef ENABLE_ALART
|
|
/*Enable Arart*/
|
|
bus_space_write_1(sc->st,sc->sh,PIIX4_SMBSLVCNT,
|
|
PIIX4_SMBSLVCNT_ALTEN);
|
|
#endif
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
intsmb_print_child(device_t bus, device_t dev)
|
|
{
|
|
printf(" on %s%d", device_get_name(bus), device_get_unit(bus));
|
|
return;
|
|
}
|
|
static int
|
|
intsmb_callback(device_t dev, int index, caddr_t data)
|
|
{
|
|
int error = 0;
|
|
intrmask_t s;
|
|
s=splnet();
|
|
switch (index) {
|
|
case SMB_REQUEST_BUS:
|
|
break;
|
|
case SMB_RELEASE_BUS:
|
|
break;
|
|
default:
|
|
error = EINVAL;
|
|
}
|
|
splx(s);
|
|
return (error);
|
|
}
|
|
/*counterpart of smbtx_smb_free*/
|
|
static int
|
|
intsmb_free(device_t dev){
|
|
intrmask_t s;
|
|
struct intsmb_softc *sc = (struct intsmb_softc *)device_get_softc(dev);
|
|
if((bus_space_read_1(sc->st,sc->sh,PIIX4_SMBHSTSTS)&
|
|
PIIX4_SMBHSTSTAT_BUSY)
|
|
#ifdef ENABLE_ALART
|
|
||(bus_space_read_1(sc->st,sc->sh,PIIX4_SMBSLVSTS)&
|
|
PIIX4_SMBSLVSTS_BUSY)
|
|
#endif
|
|
|| sc->isbusy)
|
|
return EBUSY;
|
|
s=splhigh();
|
|
sc->isbusy=1;
|
|
/*Disable Intrrupt in slave part*/
|
|
#ifndef ENABLE_ALART
|
|
bus_space_write_1(sc->st,sc->sh,PIIX4_SMBSLVCNT,0);
|
|
#endif
|
|
/*Reset INTR Flag to prepare INTR*/
|
|
bus_space_write_1(sc->st,sc->sh,PIIX4_SMBHSTSTS,
|
|
(PIIX4_SMBHSTSTAT_INTR|
|
|
PIIX4_SMBHSTSTAT_ERR|
|
|
PIIX4_SMBHSTSTAT_BUSC|
|
|
PIIX4_SMBHSTSTAT_FAIL)
|
|
);
|
|
splx(s);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
intsmb_intr(device_t dev)
|
|
{
|
|
struct intsmb_softc *sc = (struct intsmb_softc *)device_get_softc(dev);
|
|
int status;
|
|
status=bus_space_read_1(sc->st,sc->sh,PIIX4_SMBHSTSTS);
|
|
if(status&PIIX4_SMBHSTSTAT_BUSY){
|
|
return 1;
|
|
|
|
}
|
|
if(status&(PIIX4_SMBHSTSTAT_INTR|
|
|
PIIX4_SMBHSTSTAT_ERR|
|
|
PIIX4_SMBHSTSTAT_BUSC|
|
|
PIIX4_SMBHSTSTAT_FAIL)){
|
|
int tmp;
|
|
tmp=bus_space_read_1(sc->st,sc->sh,PIIX4_SMBHSTCNT);
|
|
bus_space_write_1(sc->st,sc->sh,PIIX4_SMBHSTCNT,
|
|
tmp&~PIIX4_SMBHSTCNT_INTREN);
|
|
if(sc->isbusy){
|
|
sc->isbusy=0;
|
|
wakeup(sc);
|
|
}
|
|
return 0;
|
|
}
|
|
return 1;/* Not Completed*/
|
|
}
|
|
static int
|
|
intsmb_slvintr(device_t dev)
|
|
{
|
|
struct intsmb_softc *sc = (struct intsmb_softc *)device_get_softc(dev);
|
|
int status,retval;
|
|
retval=1;
|
|
status=bus_space_read_1(sc->st,sc->sh,PIIX4_SMBSLVSTS);
|
|
if(status&PIIX4_SMBSLVSTS_BUSY)
|
|
return retval;
|
|
if(status&PIIX4_SMBSLVSTS_ALART){
|
|
intsmb_alrintr(dev);
|
|
retval=0;
|
|
}else if(status&~(PIIX4_SMBSLVSTS_ALART|PIIX4_SMBSLVSTS_SDW2
|
|
|PIIX4_SMBSLVSTS_SDW1)){
|
|
retval=0;
|
|
}
|
|
/*Reset Status Register*/
|
|
bus_space_write_1(sc->st,sc->sh,PIIX4_SMBSLVSTS,PIIX4_SMBSLVSTS_ALART|
|
|
PIIX4_SMBSLVSTS_SDW2|PIIX4_SMBSLVSTS_SDW1|
|
|
PIIX4_SMBSLVSTS_SLV);
|
|
return retval;
|
|
}
|
|
|
|
static void intsmb_alrintr(device_t dev)
|
|
{
|
|
struct intsmb_softc *sc = (struct intsmb_softc *)device_get_softc(dev);
|
|
int slvcnt;
|
|
#ifdef ENABLE_ALART
|
|
int error;
|
|
#endif
|
|
|
|
/*stop generating INTR from ALART*/
|
|
slvcnt=bus_space_read_1(sc->st,sc->sh,PIIX4_SMBSLVCNT);
|
|
#ifdef ENABLE_ALART
|
|
bus_space_write_1(sc->st,sc->sh,PIIX4_SMBSLVCNT,
|
|
slvcnt&~PIIX4_SMBSLVCNT_ALTEN) ;
|
|
#endif
|
|
DELAY(5);
|
|
/*ask bus who assert it and then ask it what's the matter. */
|
|
#ifdef ENABLE_ALART
|
|
error=intsmb_free(dev);
|
|
if(!error){
|
|
bus_space_write_1(sc->st,sc->sh,PIIX4_SMBHSTADD,SMBALTRESP
|
|
|LSB);
|
|
intsmb_start(dev,PIIX4_SMBHSTCNT_PROT_BYTE,1);
|
|
if(!(error=intsmb_stop_poll(dev))){
|
|
volatile u_int8_t *addr;
|
|
addr=bus_space_read_1(sc->st,sc->sh,
|
|
PIIX4_SMBHSTDAT0);
|
|
printf("ALART_RESPONSE: %p\n", addr);
|
|
}
|
|
}else{
|
|
printf("ERROR\n");
|
|
}
|
|
|
|
/*Re-enable INTR from ALART*/
|
|
bus_space_write_1(sc->st,sc->sh,PIIX4_SMBSLVCNT,
|
|
slvcnt|PIIX4_SMBSLVCNT_ALTEN) ;
|
|
DELAY(5);
|
|
#endif
|
|
|
|
return;
|
|
}
|
|
static void
|
|
intsmb_start(device_t dev,unsigned char cmd,int nointr)
|
|
{
|
|
struct intsmb_softc *sc = (struct intsmb_softc *)device_get_softc(dev);
|
|
unsigned char tmp;
|
|
tmp=bus_space_read_1(sc->st,sc->sh,PIIX4_SMBHSTCNT);
|
|
tmp&= 0xe0;
|
|
tmp |= cmd;
|
|
tmp |=PIIX4_SMBHSTCNT_START;
|
|
/*While not in autoconfiguration Intrrupt Enabled*/
|
|
if(!cold||!nointr)
|
|
tmp |=PIIX4_SMBHSTCNT_INTREN;
|
|
bus_space_write_1(sc->st,sc->sh,PIIX4_SMBHSTCNT,tmp);
|
|
}
|
|
|
|
/*Polling Code. Polling is not encouraged
|
|
* because It is required to wait for the device get busy.
|
|
*(29063505.pdf from Intel)
|
|
* But during boot,intrrupt cannot be used.
|
|
* so use polling code while in autoconfiguration.
|
|
*/
|
|
|
|
static int
|
|
intsmb_stop_poll(device_t dev){
|
|
int error,i;
|
|
struct intsmb_softc *sc = (struct intsmb_softc *)device_get_softc(dev);
|
|
|
|
/*
|
|
* In smbtx driver ,Simply waiting.
|
|
* This loops 100-200 times.
|
|
*/
|
|
for(i=0;i<0x7fff;i++){
|
|
if((bus_space_read_1(sc->st,sc->sh,PIIX4_SMBHSTSTS)
|
|
&PIIX4_SMBHSTSTAT_BUSY)){
|
|
break;
|
|
}
|
|
}
|
|
for(i=0;i<0x7fff;i++){
|
|
int status;
|
|
status=bus_space_read_1(sc->st,sc->sh,PIIX4_SMBHSTSTS);
|
|
if(!(status&PIIX4_SMBHSTSTAT_BUSY)){
|
|
sc->isbusy=0;
|
|
error=(status&PIIX4_SMBHSTSTAT_ERR)?EIO :
|
|
(status&PIIX4_SMBHSTSTAT_BUSC)?EBUSY:
|
|
(status&PIIX4_SMBHSTSTAT_FAIL)?EIO:0;
|
|
if(error==0&&!(status&PIIX4_SMBHSTSTAT_INTR)){
|
|
printf("unknown cause why?");
|
|
}
|
|
return error;
|
|
}
|
|
}
|
|
{
|
|
int tmp;
|
|
sc->isbusy=0;
|
|
tmp=bus_space_read_1(sc->st,sc->sh,PIIX4_SMBHSTCNT);
|
|
bus_space_write_1(sc->st,sc->sh,PIIX4_SMBHSTCNT,
|
|
tmp&~PIIX4_SMBHSTCNT_INTREN);
|
|
}
|
|
return EIO;
|
|
}
|
|
/*
|
|
*wait for completion and return result.
|
|
*/
|
|
static int
|
|
intsmb_stop(device_t dev){
|
|
int error;
|
|
intrmask_t s;
|
|
struct intsmb_softc *sc = (struct intsmb_softc *)device_get_softc(dev);
|
|
if(cold){
|
|
/*So that it can use device during probing device on SMBus.*/
|
|
error=intsmb_stop_poll(dev);
|
|
return error;
|
|
}else{
|
|
if(!tsleep(sc,(PWAIT)|PCATCH,"SMBWAI",hz/8)){
|
|
int status;
|
|
status=bus_space_read_1(sc->st,sc->sh,PIIX4_SMBHSTSTS);
|
|
if(!(status&PIIX4_SMBHSTSTAT_BUSY)){
|
|
error=(status&PIIX4_SMBHSTSTAT_ERR)?EIO :
|
|
(status&PIIX4_SMBHSTSTAT_BUSC)?EBUSY:
|
|
(status&PIIX4_SMBHSTSTAT_FAIL)?EIO:0;
|
|
if(error==0&&!(status&PIIX4_SMBHSTSTAT_INTR)){
|
|
printf("intsmb%d:unknown cause why?\n",
|
|
device_get_unit(dev));
|
|
}
|
|
#ifdef ENABLE_ALART
|
|
bus_space_write_1(sc->st,sc->sh,
|
|
PIIX4_SMBSLVCNT,PIIX4_SMBSLVCNT_ALTEN);
|
|
#endif
|
|
return error;
|
|
}
|
|
}
|
|
}
|
|
/*Timeout Procedure*/
|
|
s=splhigh();
|
|
sc->isbusy=0;
|
|
/*Re-enable supressed intrrupt from slave part*/
|
|
bus_space_write_1(sc->st,sc->sh,
|
|
PIIX4_SMBSLVCNT,PIIX4_SMBSLVCNT_ALTEN);
|
|
splx(s);
|
|
return EIO;
|
|
}
|
|
|
|
static int
|
|
intsmb_quick(device_t dev, u_char slave, int how)
|
|
{
|
|
int error=0;
|
|
u_char data;
|
|
struct intsmb_softc *sc = (struct intsmb_softc *)device_get_softc(dev);
|
|
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:
|
|
error=EINVAL;
|
|
}
|
|
if(!error){
|
|
error=intsmb_free(dev);
|
|
if(!error){
|
|
bus_space_write_1(sc->st,sc->sh,
|
|
PIIX4_SMBHSTADD,data);
|
|
intsmb_start(dev,PIIX4_SMBHSTCNT_PROT_QUICK,0);
|
|
error=intsmb_stop(dev);
|
|
}
|
|
}
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
intsmb_sendb(device_t dev, u_char slave, char byte)
|
|
{
|
|
int error;
|
|
struct intsmb_softc *sc = (struct intsmb_softc *)device_get_softc(dev);
|
|
error=intsmb_free(dev);
|
|
if(!error){
|
|
bus_space_write_1(sc->st,sc->sh,PIIX4_SMBHSTADD,slave&~LSB);
|
|
bus_space_write_1(sc->st,sc->sh,PIIX4_SMBHSTCMD,byte);
|
|
intsmb_start(dev,PIIX4_SMBHSTCNT_PROT_BYTE,0);
|
|
error=intsmb_stop(dev);
|
|
}
|
|
return (error);
|
|
}
|
|
static int
|
|
intsmb_recvb(device_t dev, u_char slave, char *byte)
|
|
{
|
|
int error;
|
|
struct intsmb_softc *sc = (struct intsmb_softc *)device_get_softc(dev);
|
|
error=intsmb_free(dev);
|
|
if(!error){
|
|
bus_space_write_1(sc->st,sc->sh,PIIX4_SMBHSTADD,slave
|
|
|LSB);
|
|
intsmb_start(dev,PIIX4_SMBHSTCNT_PROT_BYTE,0);
|
|
if(!(error=intsmb_stop(dev))){
|
|
#ifdef RECV_IS_IN_CMD
|
|
/*Linux SMBus stuff also troubles
|
|
Because Intel's datasheet will not make clear.
|
|
*/
|
|
*byte=bus_space_read_1(sc->st,sc->sh,
|
|
PIIX4_SMBHSTCMD);
|
|
#else
|
|
*byte=bus_space_read_1(sc->st,sc->sh,
|
|
PIIX4_SMBHSTDAT0);
|
|
#endif
|
|
}
|
|
}
|
|
return (error);
|
|
}
|
|
static int
|
|
intsmb_writeb(device_t dev, u_char slave, char cmd, char byte)
|
|
{
|
|
int error;
|
|
struct intsmb_softc *sc = (struct intsmb_softc *)device_get_softc(dev);
|
|
error=intsmb_free(dev);
|
|
if(!error){
|
|
bus_space_write_1(sc->st,sc->sh,PIIX4_SMBHSTADD,slave&~LSB);
|
|
bus_space_write_1(sc->st,sc->sh,PIIX4_SMBHSTCMD,cmd);
|
|
bus_space_write_1(sc->st,sc->sh,PIIX4_SMBHSTDAT0,byte);
|
|
intsmb_start(dev,PIIX4_SMBHSTCNT_PROT_BDATA,0);
|
|
error=intsmb_stop(dev);
|
|
}
|
|
return (error);
|
|
}
|
|
static int
|
|
intsmb_writew(device_t dev, u_char slave, char cmd, short word)
|
|
{
|
|
int error;
|
|
struct intsmb_softc *sc = (struct intsmb_softc *)device_get_softc(dev);
|
|
error=intsmb_free(dev);
|
|
if(!error){
|
|
bus_space_write_1(sc->st,sc->sh,PIIX4_SMBHSTADD,slave&~LSB);
|
|
bus_space_write_1(sc->st,sc->sh,PIIX4_SMBHSTCMD,cmd);
|
|
bus_space_write_1(sc->st,sc->sh,PIIX4_SMBHSTDAT0,
|
|
word&0xff);
|
|
bus_space_write_1(sc->st,sc->sh,PIIX4_SMBHSTDAT1,
|
|
(word>>8)&0xff);
|
|
intsmb_start(dev,PIIX4_SMBHSTCNT_PROT_WDATA,0);
|
|
error=intsmb_stop(dev);
|
|
}
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
intsmb_readb(device_t dev, u_char slave, char cmd, char *byte)
|
|
{
|
|
int error;
|
|
struct intsmb_softc *sc = (struct intsmb_softc *)device_get_softc(dev);
|
|
error=intsmb_free(dev);
|
|
if(!error){
|
|
bus_space_write_1(sc->st,sc->sh,PIIX4_SMBHSTADD,slave|LSB);
|
|
bus_space_write_1(sc->st,sc->sh,PIIX4_SMBHSTCMD,cmd);
|
|
intsmb_start(dev,PIIX4_SMBHSTCNT_PROT_BDATA,0);
|
|
if(!(error=intsmb_stop(dev))){
|
|
*byte=bus_space_read_1(sc->st,sc->sh,
|
|
PIIX4_SMBHSTDAT0);
|
|
}
|
|
}
|
|
return (error);
|
|
}
|
|
static int
|
|
intsmb_readw(device_t dev, u_char slave, char cmd, short *word)
|
|
{
|
|
int error;
|
|
struct intsmb_softc *sc = (struct intsmb_softc *)device_get_softc(dev);
|
|
error=intsmb_free(dev);
|
|
if(!error){
|
|
bus_space_write_1(sc->st,sc->sh,PIIX4_SMBHSTADD,slave|LSB);
|
|
bus_space_write_1(sc->st,sc->sh,PIIX4_SMBHSTCMD,cmd);
|
|
intsmb_start(dev,PIIX4_SMBHSTCNT_PROT_WDATA,0);
|
|
if(!(error=intsmb_stop(dev))){
|
|
*word=bus_space_read_1(sc->st,sc->sh,PIIX4_SMBHSTDAT0)&0xff;
|
|
*word|=(bus_space_read_1(sc->st,sc->sh,PIIX4_SMBHSTDAT1)&0xff)<<8;
|
|
}
|
|
}
|
|
return (error);
|
|
}
|
|
/*
|
|
* 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
|
|
int error;
|
|
struct intsmb_softc *sc = (struct intsmb_softc *)device_get_softc(dev);
|
|
error=intsmb_free(dev);
|
|
if(!error){
|
|
bus_space_write_1(sc->st,sc->sh,PIIX4_SMBHSTADD,slave&~LSB);
|
|
bus_space_write_1(sc->st,sc->sh,PIIX4_SMBHSTCMD,cmd);
|
|
bus_space_write_1(sc->st,sc->sh,PIIX4_SMBHSTDAT0,sdata&0xff);
|
|
bus_space_write_1(sc->st,sc->sh,PIIX4_SMBHSTDAT1,(sdata&0xff)>>8);
|
|
intsmb_start(dev,PIIX4_SMBHSTCNT_PROT_WDATA,0);
|
|
}
|
|
if(!(error=intsmb_stop(dev))){
|
|
*rdata=bus_space_read_1(sc->st,sc->sh,PIIX4_SMBHSTDAT0)&0xff;
|
|
*rdata|=(bus_space_read_1(sc->st,sc->sh,PIIX4_SMBHSTDAT1)&0xff)<<8;
|
|
}
|
|
return error;
|
|
#else
|
|
return 0;
|
|
#endif
|
|
}
|
|
static int
|
|
intsmb_bwrite(device_t dev, u_char slave, char cmd, u_char count, char *buf)
|
|
{
|
|
int error,i;
|
|
struct intsmb_softc *sc = (struct intsmb_softc *)device_get_softc(dev);
|
|
error=intsmb_free(dev);
|
|
if(count>SMBBLOCKTRANS_MAX||count==0)
|
|
error=EINVAL;
|
|
if(!error){
|
|
/*Reset internal array index*/
|
|
bus_space_read_1(sc->st,sc->sh,PIIX4_SMBHSTCNT);
|
|
|
|
bus_space_write_1(sc->st,sc->sh,PIIX4_SMBHSTADD,slave&~LSB);
|
|
bus_space_write_1(sc->st,sc->sh,PIIX4_SMBHSTCMD,cmd);
|
|
for(i=0;i<count;i++){
|
|
bus_space_write_1(sc->st,sc->sh,PIIX4_SMBBLKDAT,buf[i]);
|
|
}
|
|
bus_space_write_1(sc->st,sc->sh,PIIX4_SMBHSTDAT0,count);
|
|
intsmb_start(dev,PIIX4_SMBHSTCNT_PROT_BLOCK,0);
|
|
error=intsmb_stop(dev);
|
|
}
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
intsmb_bread(device_t dev, u_char slave, char cmd, u_char count, char *buf)
|
|
{
|
|
int error,i;
|
|
struct intsmb_softc *sc = (struct intsmb_softc *)device_get_softc(dev);
|
|
error=intsmb_free(dev);
|
|
if(count>SMBBLOCKTRANS_MAX||count==0)
|
|
error=EINVAL;
|
|
if(!error){
|
|
/*Reset internal array index*/
|
|
bus_space_read_1(sc->st,sc->sh,PIIX4_SMBHSTCNT);
|
|
|
|
bus_space_write_1(sc->st,sc->sh,PIIX4_SMBHSTADD,slave|LSB);
|
|
bus_space_write_1(sc->st,sc->sh,PIIX4_SMBHSTCMD,cmd);
|
|
bus_space_write_1(sc->st,sc->sh,PIIX4_SMBHSTDAT0,count);
|
|
intsmb_start(dev,PIIX4_SMBHSTCNT_PROT_BLOCK,0);
|
|
error=intsmb_stop(dev);
|
|
if(!error){
|
|
bzero(buf,count);/*Is it needed?*/
|
|
count= bus_space_read_1(sc->st,sc->sh,
|
|
PIIX4_SMBHSTDAT0);
|
|
if(count!=0&&count<=SMBBLOCKTRANS_MAX){
|
|
for(i=0;i<count;i++){
|
|
buf[i]=bus_space_read_1(sc->st,
|
|
sc->sh,
|
|
PIIX4_SMBBLKDAT);
|
|
}
|
|
}
|
|
else{
|
|
error=EIO;
|
|
}
|
|
}
|
|
}
|
|
return (error);
|
|
}
|
|
|
|
DRIVER_MODULE(intsmb, intpm , intpm_driver, intsmb_devclass, 0, 0);
|
|
|
|
|
|
static void intpm_intr __P((void *arg));
|
|
static int
|
|
intpm_attach(device_t dev)
|
|
{
|
|
int value;
|
|
int unit=device_get_unit(dev);
|
|
void *ih;
|
|
int error;
|
|
char * str;
|
|
{
|
|
struct intpm_pci_softc *sciic;
|
|
device_t smbinterface;
|
|
int rid;
|
|
struct resource *res;
|
|
|
|
sciic=device_get_softc(dev);
|
|
if(sciic==NULL){
|
|
return ENOMEM;
|
|
}
|
|
|
|
rid=PCI_BASE_ADDR_SMB;
|
|
#if 0
|
|
res=bus_alloc_resource(dev,SYS_RES_IOPORT,&rid,
|
|
0,~0,1,RF_ACTIVE);
|
|
if(res==NULL){
|
|
device_printf(dev,"IO FAILED Trying Memory\n");
|
|
res=bus_alloc_resource(dev,SYS_RES_MEMORY,&rid,0,~0,
|
|
1,RF_ACTIVE);
|
|
}
|
|
#else
|
|
/*Do as I tell!*/
|
|
value=pci_read_config(dev,rid,4);
|
|
res=bus_alloc_resource(dev,SYS_RES_IOPORT,&rid,value&(~1),
|
|
(value&(~1))+256,256,RF_ACTIVE);
|
|
#endif
|
|
if(res==NULL){
|
|
device_printf(dev,"Could not allocate Bus space\n");
|
|
return ENXIO;
|
|
}
|
|
sciic->smbst=rman_get_bustag(res);
|
|
sciic->smbsh=rman_get_bushandle(res);
|
|
|
|
device_printf(dev,"%s %x\n",
|
|
(sciic->smbst==I386_BUS_SPACE_IO)?
|
|
"I/O mapped":"Memory",
|
|
sciic->smbsh);
|
|
|
|
|
|
#ifndef NO_CHANGE_PCICONF
|
|
pci_write_config(dev,PCIR_INTLINE,0x9,1);
|
|
pci_write_config(dev,PCI_HST_CFG_SMB,
|
|
PCI_INTR_SMB_IRQ9|PCI_INTR_SMB_ENABLE,1);
|
|
#endif
|
|
value=pci_read_config(dev,PCI_HST_CFG_SMB,1);
|
|
switch(value&0xe){
|
|
case PCI_INTR_SMB_SMI:
|
|
str="SMI";
|
|
break;
|
|
case PCI_INTR_SMB_IRQ9:
|
|
str="IRQ 9";
|
|
break;
|
|
default:
|
|
str="BOGUS";
|
|
}
|
|
device_printf(dev,"intr %s %s ",str,((value&1)? "enabled":"disabled"));
|
|
value=pci_read_config(dev,PCI_REVID_SMB,1);
|
|
printf("revision %d\n",value);
|
|
/*
|
|
* Install intr HANDLER here
|
|
*/
|
|
rid=0;
|
|
res=bus_alloc_resource(dev,SYS_RES_IRQ,&rid,9,9,1,RF_SHAREABLE|RF_ACTIVE);
|
|
if(res==NULL){
|
|
device_printf(dev,"could not allocate irq");
|
|
return ENOMEM;
|
|
}
|
|
error=bus_setup_intr(dev,res,INTR_TYPE_MISC, (driver_intr_t *) intpm_intr,sciic,&ih);
|
|
if(error){
|
|
device_printf(dev,"Failed to map intr\n");
|
|
return error;
|
|
}
|
|
smbinterface=device_add_child(dev,"intsmb",unit,NULL);
|
|
if(!smbinterface){
|
|
printf("intsmb%d:could not add SMBus device\n",unit);
|
|
}
|
|
device_probe_and_attach(smbinterface);
|
|
}
|
|
|
|
value=pci_read_config(dev,PCI_BASE_ADDR_PM,4);
|
|
printf("intpm%d: PM %s %x \n",unit,(value&1)?"I/O mapped":"Memory",value&0xfffe);
|
|
return 0;
|
|
}
|
|
static int
|
|
intpm_probe(device_t dev)
|
|
{
|
|
struct _pcsid *ep =pci_ids;
|
|
u_int32_t device_id=pci_get_devid(dev);
|
|
|
|
while (ep->type && ep->type != device_id)
|
|
++ep;
|
|
if(ep->desc!=NULL){
|
|
device_set_desc(dev,ep->desc);
|
|
return 0;
|
|
}else{
|
|
return ENXIO;
|
|
}
|
|
}
|
|
DRIVER_MODULE(intpm, pci , intpm_pci_driver, intpm_devclass, 0, 0);
|
|
|
|
static void intpm_intr(void *arg)
|
|
{
|
|
struct intpm_pci_softc *sc;
|
|
sc=(struct intpm_pci_softc *)arg;
|
|
intsmb_intr(sc->smbus);
|
|
intsmb_slvintr(sc->smbus);
|
|
|
|
}
|