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Tidy up.

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Don't print temperatures at attach time - they're usually wrong.

Use acpi_EvaluateInteger instead of doing things the hard way.
This commit is contained in:
msmith 2001-01-31 09:33:51 +00:00
parent 337745f7d0
commit 7cf337a22e
1 changed files with 48 additions and 49 deletions
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97
sys/dev/acpica/acpi_thermal.c
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@ -42,7 +42,8 @@
#define _COMPONENT THERMAL_CONTROL
MODULE_NAME("THERMAL")
#define TZ_KELVTOC(x) (((x) - 2732) / 10), (((x) - 2732) % 10)
#define TZ_ZEROC 2732
#define TZ_KELVTOC(x) (((x) - TZ_ZEROC) / 10), (((x) - TZ_ZEROC) % 10)
struct acpi_tz_softc {
device_t tz_dev;
@ -51,7 +52,9 @@ struct acpi_tz_softc {
static int acpi_tz_probe(device_t dev);
static int acpi_tz_attach(device_t dev);
static void acpi_tz_check_tripping_point(void *context);
static void acpi_tz_check_tripping_point(void *context);
static void acpi_tz_notify_handler(ACPI_HANDLE h, UINT32 notify, void *context);
static device_method_t acpi_tz_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, acpi_tz_probe),
@ -82,43 +85,11 @@ acpi_tz_probe(device_t dev)
}
return_VALUE(ENXIO);
}
static void acpi_tz_check_tripping_point(void *context)
{
device_t dev = context;
struct acpi_tz_softc *sc;
UINT32 param[4];
ACPI_BUFFER b;
sc = device_get_softc(dev);
b.Pointer = &param[0];
b.Length = sizeof(param);
if((AcpiEvaluateObject(sc->tz_handle,"_TMP",NULL,&b)) != AE_OK){
device_printf(dev,"CANNOT FOUND _TMP\n");
return;
}
device_printf(dev,"%d.%d K\n",param[1]/10,param[1]%10);
return;
}
#define ACPI_TZ_STATUS_CHANGE 0x80
#define ACPI_TZ_TRIPPOINT_CHANGE 0x81
static void acpi_tz_notify_handler( ACPI_HANDLE h,UINT32 notify, void *context)
{
switch(notify){
case ACPI_TZ_STATUS_CHANGE:
case ACPI_TZ_TRIPPOINT_CHANGE:
/*Check trip point*/
AcpiOsQueueForExecution(OSD_PRIORITY_LO,
acpi_tz_check_tripping_point,context);
break;
}
}
static int
acpi_tz_attach(device_t dev)
{
struct acpi_tz_softc *sc;
UINT32 param[4];
ACPI_BUFFER buf;
ACPI_STATUS status;
FUNCTION_TRACE(__FUNCTION__);
@ -127,27 +98,55 @@ acpi_tz_attach(device_t dev)
sc->tz_dev = dev;
sc->tz_handle = acpi_get_handle(dev);
buf.Pointer = &param[0];
buf.Length = sizeof(param);
if ((status = AcpiEvaluateObject(sc->tz_handle, "_TMP", NULL, &buf)) != AE_OK) {
device_printf(sc->tz_dev, "can't fetch temperature - %s\n", acpi_strerror(status));
return_VALUE(ENXIO);
}
if (param[0] != ACPI_TYPE_NUMBER) {
device_printf(sc->tz_dev, "%s._TMP does not evaluate to ACPI_TYPE_NUMBER\n",
acpi_name(sc->tz_handle));
return_VALUE(ENXIO);
}
device_printf(sc->tz_dev, "current temperature %d.%dC\n", TZ_KELVTOC(param[1]));
AcpiInstallNotifyHandler(sc->tz_handle, ACPI_DEVICE_NOTIFY,
acpi_tz_notify_handler, dev);
AcpiInstallNotifyHandler(sc->tz_handle,ACPI_DEVICE_NOTIFY,
acpi_tz_notify_handler,dev);
/*
* Don't bother evaluating/printing the temperature at this point;
* on many systems it'll be bogus until the EC is running.
*/
return_VALUE(0);
}
static void
acpi_tz_check_tripping_point(void *context)
{
struct acpi_tz_softc *sc;
device_t dev = context;
ACPI_STATUS status;
int tp;
FUNCTION_TRACE(__FUNCTION__);
sc = device_get_softc(dev);
if ((status = acpi_EvaluateInteger(sc->tz_handle, "_TMP", &tp)) != AE_OK) {
device_printf(dev, "can't evaluate _TMP method - %s\n", acpi_strerror(status));
return_VOID;
}
device_printf(dev,"%d.%dC\n", TZ_KELVTOC(tp));
return_VOID;
}
#define ACPI_TZ_STATUS_CHANGE 0x80
#define ACPI_TZ_TRIPPOINT_CHANGE 0x81
static void
acpi_tz_notify_handler(ACPI_HANDLE h, UINT32 notify, void *context)
{
FUNCTION_TRACE(__FUNCTION__);
switch(notify){
case ACPI_TZ_STATUS_CHANGE:
case ACPI_TZ_TRIPPOINT_CHANGE:
/*Check trip point*/
AcpiOsQueueForExecution(OSD_PRIORITY_LO, acpi_tz_check_tripping_point, context);
break;
}
return_VOID;
}