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| author | Duncan Laurie <dlaurie@chromium.org> | 2016-05-09 11:08:46 -0700 |
|---|---|---|
| committer | Duncan Laurie <dlaurie@google.com> | 2016-05-16 19:55:59 +0200 |
| commit | abe2de8854fe1d1ed2b836da3069470dd6b04d6c (patch) | |
| tree | 6e1f96795733229984972ef8329a3785f51a5727 /src/arch/x86/include | |
| parent | f7c3876c28634a70390edeb527c865516444e627 (diff) | |
| download | coreboot-abe2de8854fe1d1ed2b836da3069470dd6b04d6c.tar.xz | |
acpigen: Add functions to generate _STA() and _PRW()
Add helper functions for generating some common objects:
acpigen_write_STA(status) will generate a status method that will
indicate the device status as provided:
Method (_STA) { Return (status) }
Full status byte configuration is possible and macros are provided for
the common status bytes used for generated code:
ACPI_STATUS_DEVICE_ALL_OFF = 0x0
ACPI_STATUS_DEVICE_ALL_ON = 0xF
acpigen_write_PRW() will generate a Power Resoruce for Wake that describes
the GPE that will wake a particular device:
Name (_PRW, Package (2) { wake, level }
Change-Id: I10277f0f3820d272d3975abf34b9a8de577782e5
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/14795
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src/arch/x86/include')
| -rw-r--r-- | src/arch/x86/include/arch/acpigen.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/arch/x86/include/arch/acpigen.h b/src/arch/x86/include/arch/acpigen.h index 25551649e9..e968778e5c 100644 --- a/src/arch/x86/include/arch/acpigen.h +++ b/src/arch/x86/include/arch/acpigen.h @@ -22,6 +22,18 @@ #include <stdint.h> #include <arch/acpi.h> +/* Values that can be returned for ACPI Device _STA method */ +#define ACPI_STATUS_DEVICE_PRESENT (1 << 0) +#define ACPI_STATUS_DEVICE_ENABLED (1 << 1) +#define ACPI_STATUS_DEVICE_SHOW_IN_UI (1 << 2) +#define ACPI_STATUS_DEVICE_STATE_OK (1 << 3) + +#define ACPI_STATUS_DEVICE_ALL_OFF 0 +#define ACPI_STATUS_DEVICE_ALL_ON (ACPI_STATUS_DEVICE_PRESENT |\ + ACPI_STATUS_DEVICE_ENABLED |\ + ACPI_STATUS_DEVICE_SHOW_IN_UI |\ + ACPI_STATUS_DEVICE_STATE_OK) + void acpigen_write_len_f(void); void acpigen_pop_len(void); void acpigen_set_current(char *curr); @@ -58,6 +70,8 @@ void acpigen_write_PPC(u8 nr); void acpigen_write_PPC_NVS(void); void acpigen_write_empty_PCT(void); void acpigen_write_empty_PTC(void); +void acpigen_write_PRW(u32 wake, u32 level); +void acpigen_write_STA(uint8_t status); void acpigen_write_TPC(const char *gnvs_tpc_limit); void acpigen_write_PSS_package(u32 coreFreq, u32 power, u32 transLat, u32 busmLat, u32 control, u32 status); |