freebsd-dev/sys/dev/acpi_support/atk0110.c

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/* $NetBSD: atk0110.c,v 1.4 2010/02/11 06:54:57 cnst Exp $ */
/* $OpenBSD: atk0110.c,v 1.1 2009/07/23 01:38:16 cnst Exp $ */
/*
* Copyright (c) 2009, 2010 Constantine A. Murenin <cnst++@FreeBSD.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <machine/_inttypes.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <sys/module.h>
#include <sys/malloc.h>
#include <sys/sysctl.h>
#include <contrib/dev/acpica/include/acpi.h>
#include <dev/acpica/acpivar.h>
/*
* ASUSTeK AI Booster (ACPI ASOC ATK0110).
*
* This code was originally written for OpenBSD after the techniques
* described in the Linux's asus_atk0110.c and FreeBSD's Takanori Watanabe's
* acpi_aiboost.c were verified to be accurate on the actual hardware kindly
* provided by Sam Fourman Jr. It was subsequently ported from OpenBSD to
* DragonFly BSD, to NetBSD's sysmon_envsys(9) and to FreeBSD's sysctl(9).
*
* -- Constantine A. Murenin <http://cnst.su/>
*/
#define _COMPONENT ACPI_OEM
ACPI_MODULE_NAME("aibs");
ACPI_SERIAL_DECL(aibs, "aibs");
#define AIBS_MORE_SENSORS
#define AIBS_VERBOSE
enum aibs_type {
AIBS_VOLT,
AIBS_TEMP,
AIBS_FAN
};
struct aibs_sensor {
ACPI_INTEGER v;
ACPI_INTEGER i;
ACPI_INTEGER l;
ACPI_INTEGER h;
enum aibs_type t;
};
struct aibs_softc {
device_t sc_dev;
ACPI_HANDLE sc_ah;
struct aibs_sensor *sc_asens_volt;
struct aibs_sensor *sc_asens_temp;
struct aibs_sensor *sc_asens_fan;
};
static int aibs_probe(device_t);
static int aibs_attach(device_t);
static int aibs_detach(device_t);
static int aibs_sysctl(SYSCTL_HANDLER_ARGS);
static void aibs_attach_sif(struct aibs_softc *, enum aibs_type);
static device_method_t aibs_methods[] = {
DEVMETHOD(device_probe, aibs_probe),
DEVMETHOD(device_attach, aibs_attach),
DEVMETHOD(device_detach, aibs_detach),
{ NULL, NULL }
};
static driver_t aibs_driver = {
"aibs",
aibs_methods,
sizeof(struct aibs_softc)
};
static devclass_t aibs_devclass;
DRIVER_MODULE(aibs, acpi, aibs_driver, aibs_devclass, NULL, NULL);
MODULE_DEPEND(aibs, acpi, 1, 1, 1);
static char* aibs_hids[] = {
"ATK0110",
NULL
};
static int
aibs_probe(device_t dev)
{
if (acpi_disabled("aibs") ||
ACPI_ID_PROBE(device_get_parent(dev), dev, aibs_hids) == NULL)
return ENXIO;
device_set_desc(dev, "ASUSTeK AI Booster (ACPI ASOC ATK0110)");
return 0;
}
static int
aibs_attach(device_t dev)
{
struct aibs_softc *sc = device_get_softc(dev);
sc->sc_dev = dev;
sc->sc_ah = acpi_get_handle(dev);
aibs_attach_sif(sc, AIBS_VOLT);
aibs_attach_sif(sc, AIBS_TEMP);
aibs_attach_sif(sc, AIBS_FAN);
return 0;
}
static void
aibs_attach_sif(struct aibs_softc *sc, enum aibs_type st)
{
ACPI_STATUS s;
ACPI_BUFFER b;
ACPI_OBJECT *bp, *o;
int i, n;
const char *node;
char name[] = "?SIF";
struct aibs_sensor *as;
struct sysctl_oid *so;
switch (st) {
case AIBS_VOLT:
node = "volt";
name[0] = 'V';
break;
case AIBS_TEMP:
node = "temp";
name[0] = 'T';
break;
case AIBS_FAN:
node = "fan";
name[0] = 'F';
break;
default:
return;
}
b.Length = ACPI_ALLOCATE_BUFFER;
s = AcpiEvaluateObjectTyped(sc->sc_ah, name, NULL, &b,
ACPI_TYPE_PACKAGE);
if (ACPI_FAILURE(s)) {
device_printf(sc->sc_dev, "%s not found\n", name);
return;
}
bp = b.Pointer;
o = bp->Package.Elements;
if (o[0].Type != ACPI_TYPE_INTEGER) {
device_printf(sc->sc_dev, "%s[0]: invalid type\n", name);
AcpiOsFree(b.Pointer);
return;
}
n = o[0].Integer.Value;
if (bp->Package.Count - 1 < n) {
device_printf(sc->sc_dev, "%s: invalid package\n", name);
AcpiOsFree(b.Pointer);
return;
} else if (bp->Package.Count - 1 > n) {
int on = n;
#ifdef AIBS_MORE_SENSORS
n = bp->Package.Count - 1;
#endif
device_printf(sc->sc_dev, "%s: malformed package: %i/%i"
", assume %i\n", name, on, bp->Package.Count - 1, n);
}
if (n < 1) {
device_printf(sc->sc_dev, "%s: no members in the package\n",
name);
AcpiOsFree(b.Pointer);
return;
}
as = malloc(sizeof(*as) * n, M_DEVBUF, M_NOWAIT | M_ZERO);
if (as == NULL) {
device_printf(sc->sc_dev, "%s: malloc fail\n", name);
AcpiOsFree(b.Pointer);
return;
}
switch (st) {
case AIBS_VOLT:
sc->sc_asens_volt = as;
break;
case AIBS_TEMP:
sc->sc_asens_temp = as;
break;
case AIBS_FAN:
sc->sc_asens_fan = as;
break;
}
/* sysctl subtree for sensors of this type */
so = SYSCTL_ADD_NODE(device_get_sysctl_ctx(sc->sc_dev),
SYSCTL_CHILDREN(device_get_sysctl_tree(sc->sc_dev)), st,
node, CTLFLAG_RD, NULL, NULL);
for (i = 0, o++; i < n; i++, o++) {
ACPI_OBJECT *oi;
char si[3];
const char *desc;
/* acpica5 automatically evaluates the referenced package */
if (o[0].Type != ACPI_TYPE_PACKAGE) {
device_printf(sc->sc_dev,
"%s: %i: not a package: %i type\n",
name, i, o[0].Type);
continue;
}
oi = o[0].Package.Elements;
if (o[0].Package.Count != 5 ||
oi[0].Type != ACPI_TYPE_INTEGER ||
oi[1].Type != ACPI_TYPE_STRING ||
oi[2].Type != ACPI_TYPE_INTEGER ||
oi[3].Type != ACPI_TYPE_INTEGER ||
oi[4].Type != ACPI_TYPE_INTEGER) {
device_printf(sc->sc_dev,
"%s: %i: invalid package\n",
name, i);
continue;
}
as[i].i = oi[0].Integer.Value;
desc = oi[1].String.Pointer;
as[i].l = oi[2].Integer.Value;
as[i].h = oi[3].Integer.Value;
as[i].t = st;
#ifdef AIBS_VERBOSE
device_printf(sc->sc_dev, "%c%i: "
"0x%08"PRIx64" %20s %5"PRIi64" / %5"PRIi64" "
"0x%"PRIx64"\n",
name[0], i,
(uint64_t)as[i].i, desc, (int64_t)as[i].l,
(int64_t)as[i].h, (uint64_t)oi[4].Integer.Value);
#endif
snprintf(si, sizeof(si), "%i", i);
SYSCTL_ADD_PROC(device_get_sysctl_ctx(sc->sc_dev),
SYSCTL_CHILDREN(so), i, si, CTLTYPE_INT | CTLFLAG_RD,
sc, st, aibs_sysctl, st == AIBS_TEMP ? "IK" : "I", desc);
}
AcpiOsFree(b.Pointer);
}
static int
aibs_detach(device_t dev)
{
struct aibs_softc *sc = device_get_softc(dev);
if (sc->sc_asens_volt != NULL)
free(sc->sc_asens_volt, M_DEVBUF);
if (sc->sc_asens_temp != NULL)
free(sc->sc_asens_temp, M_DEVBUF);
if (sc->sc_asens_fan != NULL)
free(sc->sc_asens_fan, M_DEVBUF);
return 0;
}
#ifdef AIBS_VERBOSE
#define ddevice_printf(x...) device_printf(x)
#else
#define ddevice_printf(x...)
#endif
static int
aibs_sysctl(SYSCTL_HANDLER_ARGS)
{
struct aibs_softc *sc = arg1;
enum aibs_type st = arg2;
int i = oidp->oid_number;
ACPI_STATUS rs;
ACPI_OBJECT p, *bp;
ACPI_OBJECT_LIST mp;
ACPI_BUFFER b;
char *name;
struct aibs_sensor *as;
ACPI_INTEGER v, l, h;
int so[3];
switch (st) {
case AIBS_VOLT:
name = "RVLT";
as = sc->sc_asens_volt;
break;
case AIBS_TEMP:
name = "RTMP";
as = sc->sc_asens_temp;
break;
case AIBS_FAN:
name = "RFAN";
as = sc->sc_asens_fan;
break;
default:
return ENOENT;
}
if (as == NULL)
return ENOENT;
l = as[i].l;
h = as[i].h;
p.Type = ACPI_TYPE_INTEGER;
p.Integer.Value = as[i].i;
mp.Count = 1;
mp.Pointer = &p;
b.Length = ACPI_ALLOCATE_BUFFER;
ACPI_SERIAL_BEGIN(aibs);
rs = AcpiEvaluateObjectTyped(sc->sc_ah, name, &mp, &b,
ACPI_TYPE_INTEGER);
if (ACPI_FAILURE(rs)) {
ddevice_printf(sc->sc_dev,
"%s: %i: evaluation failed\n",
name, i);
ACPI_SERIAL_END(aibs);
return EIO;
}
bp = b.Pointer;
v = bp->Integer.Value;
AcpiOsFree(b.Pointer);
ACPI_SERIAL_END(aibs);
switch (st) {
case AIBS_VOLT:
break;
case AIBS_TEMP:
v += 2731;
l += 2731;
h += 2731;
break;
case AIBS_FAN:
break;
}
so[0] = v;
so[1] = l;
so[2] = h;
return sysctl_handle_opaque(oidp, &so, sizeof(so), req);
}