diff options
| author | Simon Glass <sjg@chromium.org> | 2020-07-07 21:32:11 -0600 |
|---|---|---|
| committer | Bin Meng <bmeng.cn@gmail.com> | 2020-07-17 14:32:24 +0800 |
| commit | d7d631df2d4f32710dbecb020e375b9c0d986225 (patch) | |
| tree | 73a434686ab35f6baa4643a29f6a6a0035ef395f /include | |
| parent | 82659cc91014df7dfcc55474c1657d1c9b6fe957 (diff) | |
acpi: Support generation of a generic register
Allow writing out a generic register.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
[bmeng: Fix build failures on Sandbox]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/acpi/acpi_device.h | 1 | ||||
| -rw-r--r-- | include/acpi/acpigen.h | 28 |
2 files changed, 29 insertions, 0 deletions
diff --git a/include/acpi/acpi_device.h b/include/acpi/acpi_device.h index 5d94a88c02..11461e168d 100644 --- a/include/acpi/acpi_device.h +++ b/include/acpi/acpi_device.h @@ -20,6 +20,7 @@ struct udevice; /* ACPI descriptor values for common descriptors: SERIAL_BUS means I2C */ #define ACPI_DESCRIPTOR_LARGE BIT(7) +#define ACPI_DESCRIPTOR_REGISTER (ACPI_DESCRIPTOR_LARGE | 2) #define ACPI_DESCRIPTOR_INTERRUPT (ACPI_DESCRIPTOR_LARGE | 9) #define ACPI_DESCRIPTOR_GPIO (ACPI_DESCRIPTOR_LARGE | 12) #define ACPI_DESCRIPTOR_SERIAL_BUS (ACPI_DESCRIPTOR_LARGE | 14) diff --git a/include/acpi/acpigen.h b/include/acpi/acpigen.h index 4a606125de..1f37c9c31c 100644 --- a/include/acpi/acpigen.h +++ b/include/acpi/acpigen.h @@ -13,6 +13,7 @@ #include <linux/types.h> struct acpi_ctx; +struct acpi_gen_regaddr; struct acpi_gpio; /* Top 4 bits of the value used to indicate a three-byte length value */ @@ -21,6 +22,8 @@ struct acpi_gpio; #define ACPI_METHOD_NARGS_MASK 0x7 #define ACPI_METHOD_SERIALIZED_MASK BIT(3) +#define ACPI_END_TAG 0x79 + /* ACPI Op/Prefix codes */ enum { ZERO_OP = 0x00, @@ -319,6 +322,31 @@ void acpigen_write_method_serialized(struct acpi_ctx *ctx, const char *name, void acpigen_write_sta(struct acpi_ctx *ctx, uint status); /** + * acpigen_write_resourcetemplate_header() - Write a ResourceTemplate header + * + * @ctx: ACPI context pointer + */ +void acpigen_write_resourcetemplate_header(struct acpi_ctx *ctx); + +/** + * acpigen_write_resourcetemplate_footer() - Write a ResourceTemplate footer + * + * @ctx: ACPI context pointer + */ +void acpigen_write_resourcetemplate_footer(struct acpi_ctx *ctx); + +/** + * acpigen_write_register_resource() - Write a register resource + * + * This writes a header, the address information and a footer + * + * @ctx: ACPI context pointer + * @addr: Address to write + */ +void acpigen_write_register_resource(struct acpi_ctx *ctx, + const struct acpi_gen_regaddr *addr); + +/** * acpigen_write_sleep() - Write a sleep operation * * @ctx: ACPI context pointer |