Commit 52fa397c authored by Igor Mammedov's avatar Igor Mammedov Committed by Michael S. Tsirkin
Browse files

acpi: add aml_io() helper 



Signed-off-by: default avatarIgor Mammedov <imammedo@redhat.com>
Reviewed-by: default avatarMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: default avatarMichael S. Tsirkin <mst@redhat.com>
parent ad4a80bc

hw/acpi/aml-build.c

+16 −0
Original line number Diff line number Diff line
@@ -478,6 +478,22 @@ Aml *aml_call4(const char *method, Aml *arg1, Aml *arg2, Aml *arg3, Aml *arg4) 
    return var;

}



/* ACPI 1.0b: 6.4.2.5 I/O Port Descriptor */

Aml *aml_io(AmlIODecode dec, uint16_t min_base, uint16_t max_base,

            uint8_t aln, uint8_t len)

{

    Aml *var = aml_alloc();

    build_append_byte(var->buf, 0x47); /* IO port descriptor */

    build_append_byte(var->buf, dec);

    build_append_byte(var->buf, min_base & 0xff);

    build_append_byte(var->buf, (min_base >> 8) & 0xff);

    build_append_byte(var->buf, max_base & 0xff);

    build_append_byte(var->buf, (max_base >> 8) & 0xff);

    build_append_byte(var->buf, aln);

    build_append_byte(var->buf, len);

    return var;

}



/* ACPI 1.0b: 16.2.5.3 Type 1 Opcodes Encoding: DefIfElse */

Aml *aml_if(Aml *predicate)

{

include/hw/acpi/aml-build.h

+7 −0
Original line number Diff line number Diff line
@@ -23,6 +23,11 @@ struct Aml { 
};

typedef struct Aml Aml;



typedef enum {

    aml_decode10 = 0,

    aml_decode16 = 1,

} AmlIODecode;



/**

 * init_aml_allocator:

 *
@@ -72,6 +77,8 @@ Aml *aml_call1(const char *method, Aml *arg1); 
Aml *aml_call2(const char *method, Aml *arg1, Aml *arg2);

Aml *aml_call3(const char *method, Aml *arg1, Aml *arg2, Aml *arg3);

Aml *aml_call4(const char *method, Aml *arg1, Aml *arg2, Aml *arg3, Aml *arg4);

Aml *aml_io(AmlIODecode dec, uint16_t min_base, uint16_t max_base,

            uint8_t aln, uint8_t len);



/* Block AML object primitives */

Aml *aml_scope(const char *name_format, ...) GCC_FMT_ATTR(1, 2);