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/*-
* Copyright (c) 2004 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "opt_acpi.h"
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <machine/cpufunc.h>
#include "acpi.h"
#include "acpi_if.h"
#include <sys/module.h>
#include <dev/acpica/acpivar.h>
#include <sys/sysctl.h>
#include <machine/clock.h>
#define _COMPONENT ACPI_OEM
ACPI_MODULE_NAME("IBM")
#define IBM_RTC_MISCKEY 0x65
#define IBM_RTC_BRIGHTNESS 0x6c
#define IBM_RTC_MASK_BRI 0x7
#define IBM_RTC_MASK_BRKEY 0x40
#define IBM_RTC_KEYLIGHT 0x66
#define IBM_RTC_MASK_KEYLIGHT 0x10
#define IBM_RTC_VOLUME 0x6e
#define IBM_RTC_MASK_VOL 0xf
#define IBM_RTC_MASK_MUTE 0x40
#define IBM_RTC_MASK_VOLKEY 0x80
#define IBM_NAME_GET_WIRELESS "GBDC"
#define IBM_NAME_SET_WIRELESS "SBDC"
#define IBM_NAME_INTERFACE_VERSION "MHKV"
#define IBM_NAME_AVAIL_MASK "MHKA"
#define IBM_NAME_CURRENT_MASK "MHKN"
#define IBM_NAME_MODIFY_MASK "MHKM"
#define IBM_NAME_GET_EVENT "MHKP"
#define IBM_NAME_ENABLE "MHKC"
#if 0
/* TPX31 Specific? */
#define IBM_UCMS_VOLDN 0x0
#define IBM_UCMS_VOLUP 0x1
#define IBM_UCMS_MUTE 0x2
#define IBM_UCMS_BRIUP 0x4
#define IBM_UCMS_BRIDN 0x5
#define IBM_UCMS_KEYLIGHT 0xe
#endif
struct acpi_ibm_softc {
unsigned int ibm_version;
unsigned int ibm_availmask;
unsigned int ibm_initialmask;
int ibm_enable;
int device_flag;
#define IBM_MHKN_AVAIL 1
#define IBM_MHKM_AVAIL 2
struct sysctl_oid *oid_bluetooth;
struct sysctl_oid *oid_wlan;
};
static int acpi_ibm_probe(device_t dev);
static int acpi_ibm_attach(device_t dev);
static int acpi_ibm_detach(device_t dev);
static void
acpi_ibm_notify_handler(ACPI_HANDLE h, UINT32 notify,
void *context);
static int sysctl_acpi_ibm_mask_handler(SYSCTL_HANDLER_ARGS);
static int sysctl_acpi_ibm_enable_handler(SYSCTL_HANDLER_ARGS);
static int sysctl_acpi_ibm_misckey_handler(SYSCTL_HANDLER_ARGS);
static int sysctl_acpi_ibm_volume_handler(SYSCTL_HANDLER_ARGS);
static int sysctl_acpi_ibm_mute_handler(SYSCTL_HANDLER_ARGS);
static int sysctl_acpi_ibm_brightness_handler(SYSCTL_HANDLER_ARGS);
static int sysctl_acpi_ibm_keylight_handler(SYSCTL_HANDLER_ARGS);
static int sysctl_acpi_ibm_wireless_handler(SYSCTL_HANDLER_ARGS);
static int acpi_ibm_enable_mask(device_t dev, int val);
static device_method_t acpi_ibm_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, acpi_ibm_probe),
DEVMETHOD(device_attach, acpi_ibm_attach),
DEVMETHOD(device_detach, acpi_ibm_detach),
{0, 0}
};
static driver_t acpi_ibm_driver = {
"acpi_ibm",
acpi_ibm_methods,
sizeof(struct acpi_ibm_softc),
};
static devclass_t acpi_ibm_devclass;
DRIVER_MODULE(acpi_ibm, acpi, acpi_ibm_driver, acpi_ibm_devclass,
0, 0);
MODULE_DEPEND(acpi_ibm, acpi, 1, 1, 1);
static char *ibm_id[] = {"IBM0068", NULL};
static int
acpi_ibm_probe(device_t dev)
{
struct acpi_ibm_softc *sc;
int ret = ENXIO;
sc = device_get_softc(dev);
if (ACPI_ID_PROBE(device_get_parent(dev), dev, ibm_id)) {
device_set_desc(dev, "IBM ThinkPad Button");
ret = 0;
}
return (ret);
}
static int
acpi_ibm_call_two_method(device_t dev, char *name, int val1, int val2)
{
ACPI_OBJECT arg [2];
ACPI_OBJECT_LIST args = {.Count = 2,.Pointer = arg};
arg[0].Type = ACPI_TYPE_INTEGER;
arg[0].Integer.Value = val1;
arg[1].Type = ACPI_TYPE_INTEGER;
arg[1].Integer.Value = val2;
return AcpiEvaluateObject(acpi_get_handle(dev), name, &args, NULL);
}
static int
acpi_ibm_attach(device_t dev)
{
struct acpi_ibm_softc *sc;
ACPI_STATUS status;
ACPI_HANDLE h;
int dummy;
struct sysctl_oid *oid;
ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__);
sc = device_get_softc(dev);
sc->device_flag = 0;
if (ACPI_FAILURE
(acpi_GetInteger(acpi_get_handle(dev), IBM_NAME_INTERFACE_VERSION, &sc->ibm_version))) {
sc->ibm_version = 0;
}
device_printf(dev, "Version %x\n", sc->ibm_version);
if (ACPI_FAILURE
(acpi_GetInteger(acpi_get_handle(dev), IBM_NAME_AVAIL_MASK, &sc->ibm_availmask)))
sc->ibm_availmask = 0xffffffff;
if (ACPI_FAILURE
(acpi_GetInteger(acpi_get_handle(dev), IBM_NAME_CURRENT_MASK, &sc->ibm_initialmask)))
sc->ibm_initialmask = 0xffffffff;
else
sc->device_flag |= IBM_MHKN_AVAIL;
if (ACPI_SUCCESS(status = AcpiGetHandle(acpi_get_handle(dev), IBM_NAME_MODIFY_MASK, &h)))
sc->device_flag |= IBM_MHKM_AVAIL;
else
printf("%s\n", AcpiFormatException(status));
device_printf(dev, "Available Mask %x\n", sc->ibm_availmask);
device_printf(dev, "Initial Mask %x\n", sc->ibm_initialmask);
/* Install Specific Handler */
status = AcpiInstallNotifyHandler(acpi_get_handle(dev), ACPI_DEVICE_NOTIFY, acpi_ibm_notify_handler, dev);
SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
OID_AUTO, "key_mask", CTLTYPE_INT | CTLFLAG_RW,
dev, 0,
sysctl_acpi_ibm_mask_handler, "I", "Hot key mask");
SYSCTL_ADD_INT(device_get_sysctl_ctx(dev),
SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
OID_AUTO, "version", CTLFLAG_RD,
&sc->ibm_version, 0, "Interface version");
SYSCTL_ADD_INT(device_get_sysctl_ctx(dev),
SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
OID_AUTO, "avail_mask", CTLFLAG_RD,
&sc->ibm_availmask, 0, "Available Key mask");
if (ACPI_FAILURE(acpi_SetInteger(acpi_get_handle(dev), IBM_NAME_ENABLE, 1)))
goto fail;
sc->ibm_enable = 1;
SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
OID_AUTO, "enable", CTLTYPE_INT | CTLFLAG_RW,
dev, 0,
sysctl_acpi_ibm_enable_handler, "I", "Hot key enable");
SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
OID_AUTO, "misckey", CTLTYPE_INT | CTLFLAG_RD,
dev, 0,
sysctl_acpi_ibm_misckey_handler, "I", "Key Status: Poll me");
SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
OID_AUTO, "brightness", CTLTYPE_INT | CTLFLAG_RD,
dev, 0,
sysctl_acpi_ibm_brightness_handler, "I", "Brightness");
SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
OID_AUTO, "volume", CTLTYPE_INT | CTLFLAG_RD,
dev, 0,
sysctl_acpi_ibm_volume_handler, "I", "Volume");
SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
OID_AUTO, "mute", CTLTYPE_INT | CTLFLAG_RD,
dev, 0,
sysctl_acpi_ibm_mute_handler, "I", "Muting");
SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
OID_AUTO, "keylight", CTLTYPE_INT | CTLFLAG_RD,
dev, 0,
sysctl_acpi_ibm_keylight_handler, "I", "Key Light");
if (ACPI_SUCCESS(acpi_GetInteger(acpi_get_handle(dev), IBM_NAME_GET_WIRELESS, &dummy))) {
oid = SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
OID_AUTO, "bluetooth", CTLTYPE_INT | CTLFLAG_RW, dev, 0,
sysctl_acpi_ibm_wireless_handler, "I", "Bluetooth Enable");
sc->oid_bluetooth = oid;
oid = SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
OID_AUTO, "wlan", CTLTYPE_INT | CTLFLAG_RW, dev, 0,
sysctl_acpi_ibm_wireless_handler, "I", "WLAN Enable");
sc->oid_wlan = oid;
}
return_VALUE(0);
fail:
device_printf(dev, "FAILED\n");
AcpiRemoveNotifyHandler(acpi_get_handle(dev), ACPI_DEVICE_NOTIFY, acpi_ibm_notify_handler);
return_VALUE(EINVAL);
}
static int
acpi_ibm_detach(device_t dev)
{
ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__);
struct acpi_ibm_softc *sc = device_get_softc(dev);
acpi_SetInteger(acpi_get_handle(dev), IBM_NAME_ENABLE, 0);
acpi_ibm_enable_mask(dev, sc->ibm_initialmask);
AcpiRemoveNotifyHandler(acpi_get_handle(dev), ACPI_DEVICE_NOTIFY, acpi_ibm_notify_handler);
return_VALUE(0);
}
#if 0
static int
acpi_ibm_suspend(device_t dev)
{
struct acpi_ibm_softc *sc = device_get_softc(dev);
return_VALUE(0);
}
static int
acpi_ibm_resume(device_t dev)
{
return (0);
}
#endif
static void
acpi_ibm_notify_handler(ACPI_HANDLE h, UINT32 notify,
void *context)
{
int mhkp , arg, type;
device_t dev = context;
struct acpi_ibm_softc *sc = device_get_softc(dev);
printf("IBM:NOTIFY:%x\n", notify);
if (notify != 0x80) {
printf("Unknown notify\n");
}
for (;;) {
acpi_GetInteger(acpi_get_handle(dev), IBM_NAME_GET_EVENT, &mhkp);
if (mhkp == 0) {
break;
}
printf("notify:%x\n", mhkp);
type = (mhkp >> 12) & 0xf;
arg = mhkp & 0xfff;
switch (type) {
case 1:
if (!(sc->ibm_availmask & (1 << (arg - 1)))) {
printf("Unknown key %d\n", arg);
break;
}
acpi_UserNotify("IBM", h, (arg & 0xff));
break;
default:
break;
}
}
}
static int
acpi_ibm_enable_mask(device_t dev, int val)
{
int i;
struct acpi_ibm_softc *sc = device_get_softc(dev);
if (!(sc->device_flag | IBM_MHKM_AVAIL)) {
return -1;
}
for (i = 0; i < 32; i++) {
acpi_ibm_call_two_method(dev, IBM_NAME_MODIFY_MASK, i + 1, 1);
if (!((1 << i) & val))
acpi_ibm_call_two_method(dev, IBM_NAME_MODIFY_MASK, i + 1, 0);
}
return 0;
}
static int
sysctl_acpi_ibm_mask_handler(SYSCTL_HANDLER_ARGS)
{
device_t dev = arg1;
int val = 0xffffffff;
int error = 0;
struct acpi_ibm_softc *sc = device_get_softc(dev);
if (sc->device_flag & IBM_MHKN_AVAIL)
acpi_GetInteger(acpi_get_handle(dev), IBM_NAME_CURRENT_MASK, &val);
error = sysctl_handle_int(oidp, &val, 0, req);
if (error || !req->newptr)
return error;
val &= sc->ibm_availmask;
val |= sc->ibm_initialmask;
acpi_ibm_enable_mask(dev, val);
return 0;
}
static int
sysctl_acpi_ibm_misckey_handler(SYSCTL_HANDLER_ARGS)
{
int val , error;
val = rtcin(IBM_RTC_MISCKEY);
error = sysctl_handle_int(oidp, &val, 0, req);
if (error || !req->newptr)
return error;
return 0;
}
static int
sysctl_acpi_ibm_brightness_handler(SYSCTL_HANDLER_ARGS)
{
int val , error;
val = rtcin(IBM_RTC_BRIGHTNESS);
val &= IBM_RTC_MASK_BRI;
error = sysctl_handle_int(oidp, &val, 0, req);
if (error || !req->newptr)
return error;
return 0;
}
static int
sysctl_acpi_ibm_mute_handler(SYSCTL_HANDLER_ARGS)
{
int val , error;
val = rtcin(IBM_RTC_VOLUME);
val = ((val & IBM_RTC_MASK_MUTE) == IBM_RTC_MASK_MUTE);
error = sysctl_handle_int(oidp, &val, 0, req);
if (error || !req->newptr)
return error;
return 0;
}
static int
sysctl_acpi_ibm_keylight_handler(SYSCTL_HANDLER_ARGS)
{
int val , error;
val = ((rtcin(IBM_RTC_KEYLIGHT) & IBM_RTC_MASK_KEYLIGHT)
== IBM_RTC_MASK_KEYLIGHT);
error = sysctl_handle_int(oidp, &val, 0, req);
if (error || !req->newptr)
return error;
return 0;
}
static int
sysctl_acpi_ibm_volume_handler(SYSCTL_HANDLER_ARGS)
{
int val , error;
val = rtcin(IBM_RTC_VOLUME);
val &= IBM_RTC_MASK_VOL;
error = sysctl_handle_int(oidp, &val, 0, req);
if (error || !req->newptr)
return error;
return 0;
}
static int
sysctl_acpi_ibm_enable_handler(SYSCTL_HANDLER_ARGS)
{
device_t dev = arg1;
struct acpi_ibm_softc *sc = device_get_softc(dev);
int error = 0;
error = sysctl_handle_int(oidp, &sc->ibm_enable, 0, req);
if (error || !req->newptr)
return error;
if (sc->ibm_enable)
sc->ibm_enable = 1;
else
sc->ibm_enable = 0;
acpi_SetInteger(acpi_get_handle(dev), IBM_NAME_ENABLE, sc->ibm_enable);
return 0;
}
static int
sysctl_acpi_ibm_wireless_handler(SYSCTL_HANDLER_ARGS)
{
device_t dev = arg1;
struct acpi_ibm_softc *sc = device_get_softc(dev);
int error = 0, val, oldval, mask;
if (sc->oid_bluetooth == oidp) {
mask = 2;
} else if (sc->oid_wlan == oidp) {
mask = 4;
} else {
printf("WARNING: wrong handler invoked\n");
return ENOENT;
}
acpi_GetInteger(acpi_get_handle(dev), IBM_NAME_GET_WIRELESS, &oldval);
val = !((oldval & mask) == 0);
error = sysctl_handle_int(oidp, &val, 0, req);
if (error || !req->newptr)
return error;
oldval &= (~mask);
if (val)
oldval |= mask;
acpi_SetInteger(acpi_get_handle(dev), IBM_NAME_SET_WIRELESS, oldval);
return 0;
}
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