diff options
Diffstat (limited to 'src/arch')
| -rw-r--r-- | src/arch/x86/include/arch/acpi_device.h | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/src/arch/x86/include/arch/acpi_device.h b/src/arch/x86/include/arch/acpi_device.h index 4b3a469199..b0285d2c23 100644 --- a/src/arch/x86/include/arch/acpi_device.h +++ b/src/arch/x86/include/arch/acpi_device.h @@ -110,6 +110,11 @@ enum acpi_gpio_io_restrict { ACPI_GPIO_IO_RESTRICT_PRESERVE }; +enum acpi_gpio_polarity { + ACPI_GPIO_ACTIVE_HIGH = 0, + ACPI_GPIO_ACTIVE_LOW = 1, +}; + #define ACPI_GPIO_REVISION_ID 1 #define ACPI_GPIO_MAX_PINS 8 @@ -129,13 +134,23 @@ struct acpi_gpio { uint16_t output_drive_strength; /* 1/100 mA */ int io_shared; enum acpi_gpio_io_restrict io_restrict; + enum acpi_gpio_polarity polarity; }; /* Basic output GPIO with default pull settings */ -#define ACPI_GPIO_OUTPUT(gpio) { \ +#define ACPI_GPIO_OUTPUT_ACTIVE_HIGH(gpio) { \ + .type = ACPI_GPIO_TYPE_IO, \ + .pull = ACPI_GPIO_PULL_DEFAULT, \ + .io_restrict = ACPI_GPIO_IO_RESTRICT_OUTPUT, \ + .polarity = ACPI_GPIO_ACTIVE_HIGH, \ + .pin_count = 1, \ + .pins = { (gpio) } } + +#define ACPI_GPIO_OUTPUT_ACTIVE_LOW(gpio) { \ .type = ACPI_GPIO_TYPE_IO, \ .pull = ACPI_GPIO_PULL_DEFAULT, \ .io_restrict = ACPI_GPIO_IO_RESTRICT_OUTPUT, \ + .polarity = ACPI_GPIO_ACTIVE_LOW, \ .pin_count = 1, \ .pins = { (gpio) } } |