/* $NetBSD: ug_isa.c,v 1.10 2022/09/25 17:09:36 thorpej Exp $ */
/*
* Copyright (c) 2007 Mihai Chelaru <
[email protected]>
* 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 ``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 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.
*/
/*
* Driver for Abit uGuru (interface is inspired from it.c and nslm7x.c)
* Inspired by olle sandberg linux driver as Abit didn't care to release docs
* Support for uGuru 2005 from Louis Kruger and Hans de Goede linux driver
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: ug_isa.c,v 1.10 2022/09/25 17:09:36 thorpej Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/proc.h>
#include <sys/device.h>
#include <sys/errno.h>
#include <sys/conf.h>
#include <sys/envsys.h>
#include <sys/time.h>
#include <sys/bus.h>
#include <sys/intr.h>
#include <dev/isa/isareg.h>
#include <dev/isa/isavar.h>
#include <dev/sysmon/sysmonvar.h>
#include <dev/ic/ugreg.h>
#include <dev/ic/ugvar.h>
/* autoconf(9) functions */
static int ug_isa_match(device_t, cfdata_t, void *);
static void ug_isa_attach(device_t, device_t, void *);
static int ug_isa_detach(device_t, int);
CFATTACH_DECL_NEW(ug_isa, sizeof(struct ug_softc),
ug_isa_match, ug_isa_attach, ug_isa_detach, NULL);
extern uint8_t ug_ver;
static int
ug_isa_match(device_t parent, cfdata_t match, void *aux)
{
struct isa_attach_args *ia = aux;
bus_space_handle_t bsh;
uint8_t valc, vald;
if (ia->ia_nio < 1) /* need base addr */
return 0;
if (ISA_DIRECT_CONFIG(ia))
return 0;
if (ia->ia_io[0].ir_addr == ISA_UNKNOWN_PORT)
return 0;
if (bus_space_map(ia->ia_iot, ia->ia_io[0].ir_addr, 8, 0, &bsh))
return 0;
valc = bus_space_read_1(ia->ia_iot, bsh, UG_CMD);
vald = bus_space_read_1(ia->ia_iot, bsh, UG_DATA);
ug_ver = 0;
/* Check for uGuru 2003 */
if (((vald == 0) || (vald == 8)) && (valc == 0xAC))
ug_ver = 1;
/* Check for uGuru 2005 */
if (ug2_sync(ia->ia_iot, bsh) == 1)
ug_ver = 2;
/* unmap, prepare ia and bye */
bus_space_unmap(ia->ia_iot, bsh, 8);
if (ug_ver != 0) {
ia->ia_nio = 1;
ia->ia_io[0].ir_size = 8;
ia->ia_niomem = 0;
ia->ia_nirq = 0;
ia->ia_ndrq = 0;
return 1;
}
return 0;
}
static void
ug_isa_attach(device_t parent, device_t self, void *aux)
{
struct ug_softc *sc = device_private(self);
struct isa_attach_args *ia = aux;
int i;
if (bus_space_map(sc->sc_iot, ia->ia_io[0].ir_addr,
8, 0, &sc->sc_ioh)) {
aprint_error(": can't map i/o space\n");
return;
}
ia->ia_iot = sc->sc_iot;
sc->version = ug_ver;
if (sc->version == 2) {
ug2_attach(self);
return;
}
aprint_normal(": Abit uGuru system monitor\n");
if (!ug_reset(sc))
aprint_error_dev(self, "reset failed.\n");
ug_setup_sensors(sc);
sc->sc_sme = sysmon_envsys_create();
for (i = 0; i < UG_NUM_SENSORS; i++) {
if (sysmon_envsys_sensor_attach(sc->sc_sme,
&sc->sc_sensor[i])) {
sysmon_envsys_destroy(sc->sc_sme);
sc->sc_sme = NULL;
goto out;
}
}
sc->sc_sme->sme_cookie = sc;
sc->sc_sme->sme_refresh = ug_refresh;
if (sysmon_envsys_register(sc->sc_sme)) {
aprint_error_dev(self, "unable to register with sysmon\n");
sysmon_envsys_destroy(sc->sc_sme);
sc->sc_sme = NULL;
goto out;
}
return;
out:
bus_space_unmap(sc->sc_iot, sc->sc_ioh, 8);
}
static int
ug_isa_detach(device_t self, int flags)
{
struct ug_softc *sc = device_private(self);
if (sc->sc_sme != NULL)
sysmon_envsys_unregister(sc->sc_sme);
bus_space_unmap(sc->sc_iot, sc->sc_ioh, 8);
return 0;
}
