acpi: Add support for conditions and return values
Add functions to support generating ACPI code for condition checks and
return values.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/include/acpi/acpigen.h b/include/acpi/acpigen.h
index a9b7012..fa9409e 100644
--- a/include/acpi/acpigen.h
+++ b/include/acpi/acpigen.h
@@ -52,12 +52,24 @@
LOCAL5_OP = 0x65,
LOCAL6_OP = 0x66,
LOCAL7_OP = 0x67,
+ ARG0_OP = 0x68,
+ ARG1_OP = 0x69,
+ ARG2_OP = 0x6a,
+ ARG3_OP = 0x6b,
+ ARG4_OP = 0x6c,
+ ARG5_OP = 0x6d,
+ ARG6_OP = 0x6e,
STORE_OP = 0x70,
AND_OP = 0x7b,
OR_OP = 0x7d,
NOT_OP = 0x80,
DEVICE_OP = 0x82,
POWER_RES_OP = 0x84,
+ LEQUAL_OP = 0x93,
+ TO_BUFFER_OP = 0x96,
+ TO_INTEGER_OP = 0x99,
+ IF_OP = 0xa0,
+ ELSE_OP = 0xa1,
RETURN_OP = 0xa4,
};
@@ -573,4 +585,85 @@
*/
void acpigen_write_prw(struct acpi_ctx *ctx, uint wake, uint level);
+/**
+ * acpigen_write_if() - Write an If block
+ *
+ * This requires a call to acpigen_pop_len() to complete the block
+ *
+ * @ctx: ACPI context pointer
+ */
+void acpigen_write_if(struct acpi_ctx *ctx);
+
+/**
+ * acpigen_write_if_lequal_op_int() - Write comparison between op and integer
+ *
+ * Generates ACPI code for checking if operand1 and operand2 are equal
+ *
+ * If (Lequal (op, val))
+ *
+ * @ctx: ACPI context pointer
+ * @op: Operand to check
+ * @val: Value to check against
+ */
+void acpigen_write_if_lequal_op_int(struct acpi_ctx *ctx, uint op, u64 val);
+
+/**
+ * acpigen_write_else() - Write an Ef block
+ *
+ * This requires a call to acpigen_pop_len() to complete the block
+ *
+ * @ctx: ACPI context pointer
+ */
+void acpigen_write_else(struct acpi_ctx *ctx);
+
+/**
+ * acpigen_write_to_buffer() - Write a ToBuffer operation
+ *
+ * E.g.: to generate: ToBuffer (Arg0, Local0)
+ * use acpigen_write_to_buffer(ctx, ARG0_OP, LOCAL0_OP)
+ *
+ * @ctx: ACPI context pointer
+ * @src: Source argument
+ * @dst: Destination argument
+ */
+void acpigen_write_to_buffer(struct acpi_ctx *ctx, uint src, uint dst);
+
+/**
+ * acpigen_write_to_integer() - Write a ToInteger operation
+ *
+ * E.g.: to generate: ToInteger (Arg0, Local0)
+ * use acpigen_write_to_integer(ctx, ARG0_OP, LOCAL0_OP)
+ *
+ * @ctx: ACPI context pointer
+ * @src: Source argument
+ * @dst: Destination argument
+ */
+void acpigen_write_to_integer(struct acpi_ctx *ctx, uint src, uint dst);
+
+/**
+ * acpigen_write_return_byte_buffer() - Write a return of a byte buffer
+ *
+ * @ctx: ACPI context pointer
+ * @arr: Array of bytes to return
+ * @size: Number of bytes
+ */
+void acpigen_write_return_byte_buffer(struct acpi_ctx *ctx, u8 *arr,
+ size_t size);
+
+/**
+ * acpigen_write_return_singleton_buffer() - Write a return of a 1-byte buffer
+ *
+ * @ctx: ACPI context pointer
+ * @arg: Byte to return
+ */
+void acpigen_write_return_singleton_buffer(struct acpi_ctx *ctx, uint arg);
+
+/**
+ * acpigen_write_return_byte() - Write a return of a byte
+ *
+ * @ctx: ACPI context pointer
+ * @arg: Byte to return
+ */
+void acpigen_write_return_byte(struct acpi_ctx *ctx, uint arg);
+
#endif