diff options
| author |   Rafael J. Wysocki <rjw@sisk.pl> | 2010-02-17 23:41:07 +0100 |
|---|---|---|
| committer |   Jesse Barnes <jbarnes@virtuousgeek.org> | 2010-02-22 16:20:45 -0800 |
| commit | 9630bdd9b15d2f489c646d8bc04b60e53eb5ec78 (patch) | |
| tree | ed99f729cb9142492e0cdf2f7d19f2f33069a3f4 /include/acpi/actypes.h | |
| parent | PCI PM: Make it possible to force using INTx for PCIe PME signaling (diff) | |
| download | linux-dev-9630bdd9b15d2f489c646d8bc04b60e53eb5ec78.tar.xz linux-dev-9630bdd9b15d2f489c646d8bc04b60e53eb5ec78.zip | |
ACPI: Use GPE reference counting to support shared GPEs
ACPI GPEs may map to multiple devices. The current GPE interface
only provides a mechanism for enabling and disabling GPEs, making
it difficult to change the state of GPEs at runtime without extensive
cooperation between devices.
Add an API to allow devices to indicate whether or not they want
their device's GPE to be enabled for both runtime and wakeup events.
Remove the old GPE type handling entirely, which gets rid of various
quirks, like the implicit disabling with GPE type setting. This
requires a small amount of rework in order to ensure that non-wake
GPEs are enabled by default to preserve existing behaviour.
Based on patches from Matthew Garrett <mjg@redhat.com>.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'include/acpi/actypes.h')
| -rw-r--r-- | include/acpi/actypes.h | 28 |
1 files changed, 10 insertions, 18 deletions
diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h index 153f12dc3373..73af40863371 100644 --- a/include/acpi/actypes.h +++ b/include/acpi/actypes.h @@ -668,15 +668,16 @@ typedef u32 acpi_event_status; /* * GPE info flags - Per GPE - * +-+-+-+---+---+-+ - * |7|6|5|4:3|2:1|0| - * +-+-+-+---+---+-+ - * | | | | | | - * | | | | | +--- Interrupt type: Edge or Level Triggered - * | | | | +--- Type: Wake-only, Runtime-only, or wake/runtime + * +-+-+-+---+-+-+-+ + * |7|6|5|4:3|2|1|0| + * +-+-+-+---+-+-+-+ + * | | | | | | | + * | | | | | | +--- Interrupt type: Edge or Level Triggered + * | | | | | +--- GPE can wake the system + * | | | | +--- Unused * | | | +--- Type of dispatch -- to method, handler, or none - * | | +--- Enabled for runtime? - * | +--- Enabled for wake? + * | | +--- Unused + * | +--- Unused * +--- Unused */ #define ACPI_GPE_XRUPT_TYPE_MASK (u8) 0x01 @@ -687,22 +688,13 @@ typedef u32 acpi_event_status; #define ACPI_GPE_TYPE_WAKE_RUN (u8) 0x06 #define ACPI_GPE_TYPE_WAKE (u8) 0x02 #define ACPI_GPE_TYPE_RUNTIME (u8) 0x04 /* Default */ +#define ACPI_GPE_CAN_WAKE (u8) 0x02 #define ACPI_GPE_DISPATCH_MASK (u8) 0x18 #define ACPI_GPE_DISPATCH_HANDLER (u8) 0x08 #define ACPI_GPE_DISPATCH_METHOD (u8) 0x10 #define ACPI_GPE_DISPATCH_NOT_USED (u8) 0x00 /* Default */ -#define ACPI_GPE_RUN_ENABLE_MASK (u8) 0x20 -#define ACPI_GPE_RUN_ENABLED (u8) 0x20 -#define ACPI_GPE_RUN_DISABLED (u8) 0x00 /* Default */ - -#define ACPI_GPE_WAKE_ENABLE_MASK (u8) 0x40 -#define ACPI_GPE_WAKE_ENABLED (u8) 0x40 -#define ACPI_GPE_WAKE_DISABLED (u8) 0x00 /* Default */ - -#define ACPI_GPE_ENABLE_MASK (u8) 0x60 /* Both run/wake */ - /* * Flags for GPE and Lock interfaces */ |