diff options
Diffstat (limited to 'hw/acpi')
| -rw-r--r-- | hw/acpi/aml-build.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c index 070ca81110..d7edda1097 100644 --- a/hw/acpi/aml-build.c +++ b/hw/acpi/aml-build.c @@ -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) { |