NetBSD-5.0.2/sys/dev/acpi/sony_acpi.c
/* $NetBSD: sony_acpi.c,v 1.7 2008/05/01 16:06:41 simonb Exp $ */
/*-
* Copyright (c) 2005 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Christos Zoulas.
*
* 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: sony_acpi.c,v 1.7 2008/05/01 16:06:41 simonb Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/proc.h>
#include <sys/kernel.h>
#include <sys/callout.h>
#include <sys/sysctl.h>
#include <machine/bus.h>
#include <dev/acpi/acpica.h>
#include <dev/acpi/acpivar.h>
#define SONY_NOTIFY_FnKeyEvent 0x92
#define SONY_NOTIFY_BrightnessDownPressed 0x85
#define SONY_NOTIFY_BrightnessDownReleased 0x05
#define SONY_NOTIFY_BrightnessUpPressed 0x86
#define SONY_NOTIFY_BrightnessUpReleased 0x06
#define SONY_NOTIFY_DisplaySwitchPressed 0x87
#define SONY_NOTIFY_DisplaySwitchReleased 0x07
#define SONY_NOTIFY_ZoomPressed 0x8a
#define SONY_NOTIFY_ZoomReleased 0x0a
#define SONY_NOTIFY_SuspendPressed 0x8c
#define SONY_NOTIFY_SuspendReleased 0x0c
struct sony_acpi_softc {
device_t sc_dev;
struct sysctllog *sc_log;
struct acpi_devnode *sc_node;
#define SONY_PSW_SLEEP 0
#define SONY_PSW_DISPLAY_CYCLE 1
#define SONY_PSW_ZOOM 2
#define SONY_PSW_LAST 3
struct sysmon_pswitch sc_smpsw[SONY_PSW_LAST];
int sc_smpsw_valid;
#define SONY_ACPI_QUIRK_FNINIT 0x01
int sc_quirks;
bool sc_has_pic;
struct sony_acpi_pmstate {
ACPI_INTEGER brt;
} sc_pmstate;
};
static const char * const sony_acpi_ids[] = {
"SNY5001",
NULL
};
static int sony_acpi_match(device_t, cfdata_t, void *);
static void sony_acpi_attach(device_t, device_t, void *);
static ACPI_STATUS sony_acpi_eval_set_integer(ACPI_HANDLE, const char *,
ACPI_INTEGER, ACPI_INTEGER *);
static void sony_acpi_quirk_setup(struct sony_acpi_softc *);
static void sony_acpi_notify_handler(ACPI_HANDLE, UINT32, void *);
static bool sony_acpi_suspend(device_t PMF_FN_PROTO);
static bool sony_acpi_resume(device_t PMF_FN_PROTO);
static void sony_acpi_brightness_down(device_t);
static void sony_acpi_brightness_up(device_t);
static ACPI_STATUS sony_acpi_find_pic(ACPI_HANDLE, UINT32, void *, void **);
CFATTACH_DECL_NEW(sony_acpi, sizeof(struct sony_acpi_softc),
sony_acpi_match, sony_acpi_attach, NULL, NULL);
static int
sony_acpi_match(device_t parent, cfdata_t match, void *aux)
{
struct acpi_attach_args *aa = aux;
if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE)
return 0;
return acpi_match_hid(aa->aa_node->ad_devinfo, sony_acpi_ids);
}
static int
sony_sysctl_helper(SYSCTLFN_ARGS)
{
struct sysctlnode node;
ACPI_INTEGER acpi_val;
ACPI_STATUS rv;
int val, old_val, error;
char buf[SYSCTL_NAMELEN + 1], *ptr;
struct sony_acpi_softc *sc = rnode->sysctl_data;
(void)snprintf(buf, sizeof(buf), "G%s", rnode->sysctl_name);
for (ptr = buf; *ptr; ptr++)
*ptr = toupper(*ptr);
rv = acpi_eval_integer(sc->sc_node->ad_handle, buf, &acpi_val);
if (ACPI_FAILURE(rv)) {
#ifdef DIAGNOSTIC
printf("%s: couldn't get `%s'\n", device_xname(sc->sc_dev), buf);
#endif
return EIO;
}
val = old_val = acpi_val;
node = *rnode;
node.sysctl_data = &val;
error = sysctl_lookup(SYSCTLFN_CALL(&node));
if (error || newp == NULL)
return error;
(void)snprintf(buf, sizeof(buf), "S%s", rnode->sysctl_name);
acpi_val = val;
rv = sony_acpi_eval_set_integer(sc->sc_node->ad_handle, buf,
acpi_val, NULL);
if (ACPI_FAILURE(rv)) {
#ifdef DIAGNOSTIC
printf("%s: couldn't set `%s' to %d\n",
device_xname(sc->sc_dev), buf, val);
#endif
return EIO;
}
return 0;
}
static ACPI_STATUS
sony_walk_cb(ACPI_HANDLE hnd, UINT32 v, void *context, void **status)
{
struct sony_acpi_softc *sc = (void *)context;
const struct sysctlnode *node, *snode;
const char *name = acpi_name(hnd);
ACPI_INTEGER acpi_val;
char buf[SYSCTL_NAMELEN + 1], *ptr;
int rv;
if ((name = strrchr(name, '.')) == NULL)
return AE_OK;
name++;
if ((*name != 'G') && (*name != 'S'))
return AE_OK;
(void)strlcpy(buf, name, sizeof(buf));
*buf = 'G';
/*
* We assume that if the 'get' of the name as an integer is
* successful it is ok.
*/
if (acpi_eval_integer(sc->sc_node->ad_handle, buf, &acpi_val))
return AE_OK;
for (ptr = buf; *ptr; ptr++)
*ptr = tolower(*ptr);
if ((rv = sysctl_createv(&sc->sc_log, 0, NULL, &node, CTLFLAG_PERMANENT,
CTLTYPE_NODE, "hw", NULL, NULL, 0, NULL, 0, CTL_HW, CTL_EOL)) != 0)
goto out;
if ((rv = sysctl_createv(&sc->sc_log, 0, &node, &snode, 0,
CTLTYPE_NODE, device_xname(sc->sc_dev),
SYSCTL_DESCR("sony controls"),
NULL, 0, NULL, 0, CTL_CREATE, CTL_EOL)) != 0)
goto out;
if ((rv = sysctl_createv(&sc->sc_log, 0, &snode, &node,
CTLFLAG_READWRITE, CTLTYPE_INT, buf + 1, NULL,
sony_sysctl_helper, 0, sc, 0, CTL_CREATE, CTL_EOL)) != 0)
goto out;
out:
#ifdef DIAGNOSTIC
if (rv)
printf("%s: sysctl_createv failed (rv = %d)\n",
device_xname(sc->sc_dev), rv);
#endif
return AE_OK;
}
ACPI_STATUS
sony_acpi_eval_set_integer(ACPI_HANDLE handle, const char *path,
ACPI_INTEGER val, ACPI_INTEGER *valp)
{
ACPI_STATUS rv;
ACPI_BUFFER buf;
ACPI_OBJECT param, ret_val;
ACPI_OBJECT_LIST params;
if (handle == NULL)
handle = ACPI_ROOT_OBJECT;
params.Count = 1;
params.Pointer = ¶m;
param.Type = ACPI_TYPE_INTEGER;
param.Integer.Value = val;
buf.Pointer = &ret_val;
buf.Length = sizeof(ret_val);
rv = AcpiEvaluateObjectTyped(handle, path, ¶ms, &buf,
ACPI_TYPE_INTEGER);
if (ACPI_SUCCESS(rv) && valp)
*valp = ret_val.Integer.Value;
return rv;
}
static void
sony_acpi_attach(device_t parent, device_t self, void *aux)
{
struct sony_acpi_softc *sc = device_private(self);
struct acpi_attach_args *aa = aux;
ACPI_STATUS rv;
int i;
aprint_naive(": Sony Miscellaneous Controller\n");
aprint_normal(": Sony Miscellaneous Controller\n");
sc->sc_node = aa->aa_node;
sc->sc_dev = self;
rv = AcpiWalkNamespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, 100,
sony_acpi_find_pic, sc, NULL);
if (ACPI_FAILURE(rv))
aprint_error_dev(self, "couldn't walk namespace: %s\n",
AcpiFormatException(rv));
/*
* If we don't find an SNY6001 device, assume that we need the
* Fn key initialization sequence.
*/
if (sc->sc_has_pic == false)
sc->sc_quirks |= SONY_ACPI_QUIRK_FNINIT;
sony_acpi_quirk_setup(sc);
/* Configure suspend button and hotkeys */
sc->sc_smpsw[SONY_PSW_SLEEP].smpsw_name = device_xname(self);
sc->sc_smpsw[SONY_PSW_SLEEP].smpsw_type = PSWITCH_TYPE_SLEEP;
sc->sc_smpsw[SONY_PSW_DISPLAY_CYCLE].smpsw_name =
PSWITCH_HK_DISPLAY_CYCLE;
sc->sc_smpsw[SONY_PSW_DISPLAY_CYCLE].smpsw_type = PSWITCH_TYPE_HOTKEY;
sc->sc_smpsw[SONY_PSW_ZOOM].smpsw_name = PSWITCH_HK_ZOOM_BUTTON;
sc->sc_smpsw[SONY_PSW_ZOOM].smpsw_type = PSWITCH_TYPE_HOTKEY;
sc->sc_smpsw_valid = 1;
for (i = 0; i < SONY_PSW_LAST; i++)
if (sysmon_pswitch_register(&sc->sc_smpsw[i]) != 0) {
aprint_error_dev(self,
"couldn't register %s with sysmon\n",
sc->sc_smpsw[i].smpsw_name);
sc->sc_smpsw_valid = 0;
}
/* Install notify handler */
rv = AcpiInstallNotifyHandler(sc->sc_node->ad_handle,
ACPI_DEVICE_NOTIFY, sony_acpi_notify_handler, self);
if (ACPI_FAILURE(rv))
aprint_error_dev(self,
"couldn't install notify handler (%d)\n", rv);
/* Install sysctl handler */
rv = AcpiWalkNamespace(ACPI_TYPE_METHOD,
sc->sc_node->ad_handle, 1, sony_walk_cb, sc, NULL);
#ifdef DIAGNOSTIC
if (ACPI_FAILURE(rv))
aprint_error_dev(self, "Cannot walk ACPI namespace (%d)\n",
rv);
#endif
if (!pmf_device_register(self, sony_acpi_suspend, sony_acpi_resume))
aprint_error_dev(self, "couldn't establish power handler\n");
if (!pmf_event_register(self, PMFE_DISPLAY_BRIGHTNESS_UP,
sony_acpi_brightness_up, true))
aprint_error_dev(self, "couldn't register BRIGHTNESS UP handler\n");
if (!pmf_event_register(self, PMFE_DISPLAY_BRIGHTNESS_DOWN,
sony_acpi_brightness_down, true))
aprint_error_dev(self, "couldn't register BRIGHTNESS DOWN handler\n");
}
static void
sony_acpi_quirk_setup(struct sony_acpi_softc *sc)
{
ACPI_HANDLE hdl = sc->sc_node->ad_handle;
if (sc->sc_quirks & SONY_ACPI_QUIRK_FNINIT) {
/* Initialize extra Fn keys */
sony_acpi_eval_set_integer(hdl, "SN02", 0x04, NULL);
sony_acpi_eval_set_integer(hdl, "SN07", 0x02, NULL);
sony_acpi_eval_set_integer(hdl, "SN02", 0x10, NULL);
sony_acpi_eval_set_integer(hdl, "SN07", 0x00, NULL);
sony_acpi_eval_set_integer(hdl, "SN03", 0x02, NULL);
sony_acpi_eval_set_integer(hdl, "SN07", 0x101, NULL);
}
}
static void
sony_acpi_notify_handler(ACPI_HANDLE hdl, UINT32 notify, void *opaque)
{
device_t dv = opaque;
struct sony_acpi_softc *sc = device_private(dv);
ACPI_STATUS rv;
ACPI_INTEGER arg;
int s;
if (notify == SONY_NOTIFY_FnKeyEvent) {
rv = sony_acpi_eval_set_integer(hdl, "SN07", 0x202, &arg);
if (ACPI_FAILURE(rv))
return;
notify = arg & 0xff;
}
s = spltty();
switch (notify) {
case SONY_NOTIFY_BrightnessDownPressed:
sony_acpi_brightness_down(dv);
break;
case SONY_NOTIFY_BrightnessUpPressed:
sony_acpi_brightness_up(dv);
break;
case SONY_NOTIFY_BrightnessDownReleased:
case SONY_NOTIFY_BrightnessUpReleased:
break;
case SONY_NOTIFY_SuspendPressed:
if (!sc->sc_smpsw_valid)
break;
sysmon_pswitch_event(&sc->sc_smpsw[SONY_PSW_SLEEP],
PSWITCH_EVENT_PRESSED);
break;
case SONY_NOTIFY_SuspendReleased:
break;
case SONY_NOTIFY_DisplaySwitchPressed:
if (!sc->sc_smpsw_valid)
break;
sysmon_pswitch_event(&sc->sc_smpsw[SONY_PSW_DISPLAY_CYCLE],
PSWITCH_EVENT_PRESSED);
break;
case SONY_NOTIFY_DisplaySwitchReleased:
break;
case SONY_NOTIFY_ZoomPressed:
if (!sc->sc_smpsw_valid)
break;
sysmon_pswitch_event(&sc->sc_smpsw[SONY_PSW_ZOOM],
PSWITCH_EVENT_PRESSED);
break;
case SONY_NOTIFY_ZoomReleased:
break;
default:
aprint_debug_dev(dv, "unknown notify event 0x%x\n",
notify);
break;
}
splx(s);
}
static bool
sony_acpi_suspend(device_t dv PMF_FN_ARGS)
{
struct sony_acpi_softc *sc = device_private(dv);
acpi_eval_integer(sc->sc_node->ad_handle, "GBRT", &sc->sc_pmstate.brt);
return true;
}
static bool
sony_acpi_resume(device_t dv PMF_FN_ARGS)
{
struct sony_acpi_softc *sc = device_private(dv);
sony_acpi_eval_set_integer(sc->sc_node->ad_handle, "SBRT",
sc->sc_pmstate.brt, NULL);
sony_acpi_quirk_setup(sc);
return true;
}
static void
sony_acpi_brightness_up(device_t dv)
{
struct sony_acpi_softc *sc = device_private(dv);
ACPI_INTEGER arg;
ACPI_STATUS rv;
rv = acpi_eval_integer(sc->sc_node->ad_handle, "GBRT", &arg);
if (ACPI_FAILURE(rv))
return;
if (arg >= 8)
arg = 8;
else
arg++;
sony_acpi_eval_set_integer(sc->sc_node->ad_handle, "SBRT", arg, NULL);
}
static void
sony_acpi_brightness_down(device_t dv)
{
struct sony_acpi_softc *sc = device_private(dv);
ACPI_INTEGER arg;
ACPI_STATUS rv;
rv = acpi_eval_integer(sc->sc_node->ad_handle, "GBRT", &arg);
if (ACPI_FAILURE(rv))
return;
if (arg <= 0)
arg = 0;
else
arg--;
sony_acpi_eval_set_integer(sc->sc_node->ad_handle, "SBRT", arg, NULL);
}
static ACPI_STATUS
sony_acpi_find_pic(ACPI_HANDLE hdl, UINT32 level, void *opaque, void **status)
{
struct sony_acpi_softc *sc = opaque;
ACPI_BUFFER buf;
ACPI_STATUS rv;
ACPI_DEVICE_INFO *devinfo;
buf.Pointer = NULL;
buf.Length = ACPI_ALLOCATE_BUFFER;
rv = AcpiGetObjectInfo(hdl, &buf);
if (ACPI_FAILURE(rv) || buf.Pointer == NULL)
return AE_OK; /* we don't want to stop searching */
devinfo = buf.Pointer;
if (strncmp(devinfo->HardwareId.Value, "SNY6001", 7) == 0)
sc->sc_has_pic = true;
AcpiOsFree(buf.Pointer);
return AE_OK;
}