/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/sysmacros.h>
#include <sys/sunddi.h>
#include <sys/esunddi.h>
#include <sys/sunndi.h>
#include <sys/conf.h>
#include <sys/platform_module.h>
#include <sys/errno.h>
#include <sys/sunldi.h>
#include <sys/file.h>
#define SHARED_PCF8584_PATH "/pci@8,700000/ebus@5/i2c@1,2e/nvram@0,a0"
static dev_info_t *shared_pcf8584_dip;
static kmutex_t excal_pcf8584_mutex;
int (*p2get_mem_unum)(int, uint64_t, char *, int, int *);
/*
* Excalibur fan information
*/
typedef struct xcalfan_info {
char *pathname;
int8_t val8;
ldi_handle_t lh;
} xcalfan_info_t;
static xcalfan_info_t xcalfans[] = {
{"/pci@8,700000/ebus@5/i2c@1,30/fan-control@0,48:2", 63, NULL},
{"/pci@8,700000/ebus@5/i2c@1,30/fan-control@0,48:0", 63, NULL},
{"/pci@8,700000/ebus@5/i2c@1,30/fan-control@0,48:4", 31, NULL}
};
#define NFANS (sizeof (xcalfans) / sizeof (xcalfans[0]))
void
startup_platform(void)
{
mutex_init(&excal_pcf8584_mutex, NULL, NULL, NULL);
}
int
set_platform_tsb_spares()
{
return (0);
}
void
set_platform_defaults(void)
{
}
void
load_platform_drivers(void)
{
ldi_ident_t li;
dev_info_t *dip;
char **drv;
int i, err;
static char *boot_time_drivers[] = {
"todds1287",
"us",
"mc-us3",
"bbc_beep",
"max1617",
"tda8444",
"seeprom",
NULL
};
for (drv = boot_time_drivers; *drv; drv++) {
if ((i_ddi_attach_hw_nodes(*drv) != DDI_SUCCESS) &&
(strcmp(*drv, "us") != 0))
/*
* It is OK if 'us' driver doesn't load. It's
* not available in Core cluster.
*/
cmn_err(CE_WARN, "Failed to install \"%s\" driver.",
*drv);
}
/*
* mc-us3 must stay loaded for plat_get_mem_unum()
*/
(void) ddi_hold_driver(ddi_name_to_major("mc-us3"));
/*
* Figure out which pcf8584_dip is shared with OBP for the nvram
* device, so the lock can be acquired.
*
* This should really be done elsewhere, like startup_platform, but
* that runs before the devinfo tree is setup with configure().
* So it is here until there is a better place.
*/
dip = e_ddi_hold_devi_by_path(SHARED_PCF8584_PATH, 0);
ASSERT(dip != NULL);
shared_pcf8584_dip = ddi_get_parent(dip);
ndi_hold_devi(shared_pcf8584_dip);
ndi_rele_devi(dip);
li = ldi_ident_from_anon();
for (i = 0; i < NFANS; ++i) {
err = ldi_open_by_name(xcalfans[i].pathname,
FWRITE, kcred, &xcalfans[i].lh, li);
if (err != 0) {
cmn_err(CE_WARN, "plat_fan_blast: "
"Failed to get fan device handle for %s",
xcalfans[i].pathname);
continue;
}
}
ldi_ident_release(li);
}
/*ARGSUSED*/
int
plat_cpu_poweron(struct cpu *cp)
{
return (ENOTSUP); /* not supported on this platform */
}
/*ARGSUSED*/
int
plat_cpu_poweroff(struct cpu *cp)
{
return (ENOTSUP); /* not supported on this platform */
}
/*ARGSUSED*/
void
plat_freelist_process(int mnode)
{
}
char *platform_module_list[] = {
"schppm", /* must attach before xcalppm */
"xcalppm",
(char *)0
};
/*ARGSUSED*/
void
plat_tod_fault(enum tod_fault_type tod_bad)
{
}
/*ARGSUSED*/
int
plat_get_mem_unum(int synd_code, uint64_t flt_addr, int flt_bus_id,
int flt_in_memory, ushort_t flt_status, char *buf, int buflen, int *lenp)
{
if (flt_in_memory && (p2get_mem_unum != NULL))
return (p2get_mem_unum(synd_code, P2ALIGN(flt_addr, 8),
buf, buflen, lenp));
else
return (ENOTSUP);
}
int
plat_get_cpu_unum(int cpuid, char *buf, int buflen, int *lenp)
{
if (snprintf(buf, buflen, "Slot %d", cpuid) >= buflen) {
return (ENOSPC);
} else {
*lenp = strlen(buf);
return (0);
}
}
/*
* Unfortunately, excal's BBC pcf8584 controller is used by both OBP
* and the OS's i2c drivers. The 'eeprom' command executes
* OBP code to handle property requests. If eeprom didn't do this, or if the
* controllers were partitioned so that all devices on a given controller were
* driven by either OBP or the OS, this wouldn't be necessary.
*
* Note that getprop doesn't have the same issue as it reads from cached
* memory in OBP.
*/
/*
* Common locking enter code
*/
void
plat_setprop_enter(void)
{
mutex_enter(&excal_pcf8584_mutex);
}
/*
* Common locking exit code
*/
void
plat_setprop_exit(void)
{
mutex_exit(&excal_pcf8584_mutex);
}
/*
* Called by pcf8584 driver
*/
void
plat_shared_i2c_enter(dev_info_t *dip)
{
if (dip == shared_pcf8584_dip) {
plat_setprop_enter();
}
}
/*
* Called by pcf8584 driver
*/
void
plat_shared_i2c_exit(dev_info_t *dip)
{
if (dip == shared_pcf8584_dip) {
plat_setprop_exit();
}
}
/*
* Set platform fans to maximum speed
*/
void
plat_fan_blast(void)
{
struct uio uio;
struct iovec iov;
int8_t fv;
int err;
int i;
for (i = 0; i < NFANS; ++i) {
fv = xcalfans[i].val8;
bzero(&uio, sizeof (uio));
bzero(&iov, sizeof (iov));
iov.iov_base = &fv;
iov.iov_len = sizeof (fv);
uio.uio_iov = &iov;
uio.uio_iovcnt = 1;
uio.uio_loffset = 0;
uio.uio_segflg = UIO_SYSSPACE;
uio.uio_resid = sizeof (fv);
err = ldi_write(xcalfans[i].lh, &uio, kcred);
if (err != 0) {
if (err == EAGAIN) {
cmn_err(CE_WARN, "!plat_fan_blast: Cannot "
"write %d to %s now, try again later.",
xcalfans[i].val8, xcalfans[i].pathname);
} else {
cmn_err(CE_WARN, "plat_fan_blast: "
"Error %d while writing %d to %s.", err,
xcalfans[i].val8, xcalfans[i].pathname);
}
}
}
}