diff options
| author | Duncan Laurie <dlaurie@chromium.org> | 2016-09-19 12:04:19 -0700 |
|---|---|---|
| committer | Duncan Laurie <dlaurie@chromium.org> | 2016-09-19 19:03:34 -0700 |
| commit | 884dfe632940b940df68d09f997fa5cd25121def (patch) | |
| tree | 6f060e8feef4cec37b0085e878769136686e59ee /src/arch | |
| parent | 1241e7db55aff313e56bf4546d969c11368b08a2 (diff) | |
x86: acpi: Add function for querying GPE status
Add a function that can be implemented by the SOC to read
and clear the status of a single GPE. This can be used
during firmware to poll for interrupt status.
BUG=chrome-os-partner:53336
Change-Id: I536c2176320fefa4c186dabcdddb55880c47fbad
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Diffstat (limited to 'src/arch')
| -rw-r--r-- | src/arch/x86/acpi.c | 5 | ||||
| -rw-r--r-- | src/arch/x86/include/arch/acpi.h | 3 |
2 files changed, 8 insertions, 0 deletions
diff --git a/src/arch/x86/acpi.c b/src/arch/x86/acpi.c index bbeb92f3ba..edb6835dc8 100644 --- a/src/arch/x86/acpi.c +++ b/src/arch/x86/acpi.c @@ -1093,3 +1093,8 @@ void acpi_save_gnvs(u32 gnvs_address) if (gnvs) *gnvs = gnvs_address; } + +__attribute__ ((weak)) int acpi_get_gpe(int gpe) +{ + return -1; /* implemented by SOC */ +} diff --git a/src/arch/x86/include/arch/acpi.h b/src/arch/x86/include/arch/acpi.h index e81ddbf02f..7d2993162d 100644 --- a/src/arch/x86/include/arch/acpi.h +++ b/src/arch/x86/include/arch/acpi.h @@ -677,6 +677,9 @@ static inline int acpi_sleep_from_pm1(uint32_t pm1_cnt) /* Returns ACPI_Sx values. */ int acpi_get_sleep_type(void); +/* Read and clear GPE status */ +int acpi_get_gpe(int gpe); + static inline int acpi_s3_resume_allowed(void) { return IS_ENABLED(CONFIG_HAVE_ACPI_RESUME); |