Signed-off-by: Igor Mammedov <imamm...@redhat.com>
---
hw/acpi/acpi-build-utils.c | 19 +++++++++++++++++++
include/hw/acpi/acpi-build-utils.h | 7 +++++++
2 files changed, 26 insertions(+)
diff --git a/hw/acpi/acpi-build-utils.c b/hw/acpi/acpi-build-utils.c
index 32a4377..56b237a 100644
--- a/hw/acpi/acpi-build-utils.c
+++ b/hw/acpi/acpi-build-utils.c
@@ -454,6 +454,25 @@ AcpiAml acpi_call4(const char *method, AcpiAml arg1,
AcpiAml arg2,
return var;
}
+/*
+ * ACPI 5.0: 19.5.62 IO (IO Resource Descriptor Macro)
+ * 6.4.2 Small Resource Data Type
+*/
+AcpiAml acpi_io(acpiIODecode dec, uint16_t min_base, uint16_t max_base,
+ uint8_t aln, uint8_t len)
+{
+ AcpiAml var = aml_allocate_internal(0, NON_BLOCK);
+ 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 5.0: 20.2.5.3 Type 1 Opcodes Encoding: DefIfElse */
AcpiAml acpi_if(AcpiAml predicate)
{
diff --git a/include/hw/acpi/acpi-build-utils.h
b/include/hw/acpi/acpi-build-utils.h
index 594fae7..91575f1 100644
--- a/include/hw/acpi/acpi-build-utils.h
+++ b/include/hw/acpi/acpi-build-utils.h
@@ -19,6 +19,11 @@ typedef struct AcpiAml {
AcpiBlockFlags block_flags;
} AcpiAml;
+typedef enum {
+ acpi_decode10 = 0,
+ acpi_decode16 = 1,
+} acpiIODecode;
+
void aml_append(AcpiAml *parent_ctx, AcpiAml child);
/* non block ASL object primitives */
@@ -39,6 +44,8 @@ AcpiAml acpi_call3(const char *method, AcpiAml arg1, AcpiAml
arg2,
AcpiAml arg3);
AcpiAml acpi_call4(const char *method, AcpiAml arg1, AcpiAml arg2,
AcpiAml arg3, AcpiAml arg4);
+AcpiAml acpi_io(acpiIODecode dec, uint16_t min_base, uint16_t max_base,
+ uint8_t aln, uint8_t len);
/* Block ASL object primitives */
AcpiAml acpi_if(AcpiAml predicate);
--
1.8.3.1
