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< * $FreeBSD: head/sys/dev/acpica/Osd/OsdSynch.c 107328 2002-11-27 18:09:20Z iwasaki $
---
> * $FreeBSD: head/sys/dev/acpica/Osd/OsdSynch.c 117530 2003-07-13 22:57:16Z njl $
340a341,391
>
> ACPI_STATUS
> AcpiOsCreateLock (ACPI_HANDLE *OutHandle)
> {
> struct mtx *m;
>
> if (OutHandle == NULL)
> return (AE_BAD_PARAMETER);
> MALLOC(m, struct mtx *, sizeof(*m), M_ACPISEM, M_NOWAIT | M_ZERO);
> if (m == NULL)
> return (AE_NO_MEMORY);
>
> mtx_init(m, "acpica subsystem lock", NULL, MTX_DEF);
> *OutHandle = (ACPI_HANDLE)m;
> return (AE_OK);
> }
>
> void
> AcpiOsDeleteLock (ACPI_HANDLE Handle)
> {
> struct mtx *m = (struct mtx *)Handle;
>
> if (Handle == NULL)
> return;
> mtx_destroy(m);
> }
>
> /*
> * The Flags parameter seems to state whether or not caller is an ISR
> * (and thus can't block) but since we have ithreads, we don't worry
> * about potentially blocking.
> */
> void
> AcpiOsAcquireLock (ACPI_HANDLE Handle, UINT32 Flags)
> {
> struct mtx *m = (struct mtx *)Handle;
>
> if (Handle == NULL)
> return;
> mtx_lock(m);
> }
>
> void
> AcpiOsReleaseLock (ACPI_HANDLE Handle, UINT32 Flags)
> {
> struct mtx *m = (struct mtx *)Handle;
>
> if (Handle == NULL)
> return;
> mtx_unlock(m);
> }