34189453f1
Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
94 lines
2.7 KiB
C
94 lines
2.7 KiB
C
#ifndef HW_ACPI_GEN_UTILS_H
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#define HW_ACPI_GEN_UTILS_H
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#include <stdint.h>
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#include <glib.h>
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#include "qemu/compiler.h"
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typedef enum {
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AML_NO_OPCODE = 0,/* has only data */
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AML_OPCODE, /* has opcode optionally followed by data */
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AML_PACKAGE, /* has opcode and uses PkgLength for its length */
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AML_EXT_PACKAGE, /* ame as AML_PACKAGE but also has 'ExOpPrefix' */
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AML_BUFFER, /* data encoded as 'DefBuffer' */
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AML_RES_TEMPLATE, /* encoded as ResourceTemplate macro */
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} AmlBlockFlags;
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struct Aml {
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GArray *buf;
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/*< private >*/
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uint8_t op;
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AmlBlockFlags block_flags;
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};
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typedef struct Aml Aml;
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/**
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* init_aml_allocator:
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*
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* Called for initializing API allocator which allow to use
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* AML API.
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* Returns: toplevel container which accumulates all other
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* AML elements for a table.
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*/
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Aml *init_aml_allocator(void);
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/**
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* free_aml_allocator:
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*
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* Releases all elements used by AML API, frees associated memory
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* and invalidates AML allocator. After this call @init_aml_allocator
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* should be called again if AML API is to be used again.
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*/
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void free_aml_allocator(void);
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/**
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* aml_append:
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* @parent_ctx: context to which @child element is added
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* @child: element that is copied into @parent_ctx context
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*
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* Joins Aml elements together and helps to construct AML tables
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* Examle of usage:
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* Aml *table = aml_def_block("SSDT", ...);
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* Aml *sb = aml_scope("\_SB");
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* Aml *dev = aml_device("PCI0");
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*
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* aml_append(dev, aml_name_decl("HID", aml_eisaid("PNP0A03")));
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* aml_append(sb, dev);
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* aml_append(table, sb);
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*/
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void aml_append(Aml *parent_ctx, Aml *child);
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/* non block AML object primitives */
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Aml *aml_name(const char *name_format, ...) GCC_FMT_ATTR(1, 2);
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Aml *aml_name_decl(const char *name, Aml *val);
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Aml *aml_return(Aml *val);
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Aml *aml_int(const uint64_t val);
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Aml *aml_arg(int pos);
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Aml *aml_store(Aml *val, Aml *target);
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Aml *aml_and(Aml *arg1, Aml *arg2);
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Aml *aml_notify(Aml *arg1, Aml *arg2);
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/* Block AML object primitives */
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Aml *aml_scope(const char *name_format, ...) GCC_FMT_ATTR(1, 2);
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Aml *aml_device(const char *name_format, ...) GCC_FMT_ATTR(1, 2);
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Aml *aml_method(const char *name, int arg_count);
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Aml *aml_if(Aml *predicate);
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/* other helpers */
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GArray *build_alloc_array(void);
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void build_free_array(GArray *array);
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void build_prepend_byte(GArray *array, uint8_t val);
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void build_append_byte(GArray *array, uint8_t val);
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void build_append_array(GArray *array, GArray *val);
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void GCC_FMT_ATTR(2, 3)
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build_append_namestring(GArray *array, const char *format, ...);
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void build_prepend_package_length(GArray *package);
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void build_package(GArray *package, uint8_t op);
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void build_append_int(GArray *table, uint64_t value);
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void build_extop_package(GArray *package, uint8_t op);
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#endif
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