Add aml_memory32_fixed() for describing device mmio region in resource template.
Add aml_interrupt() for describing device interrupt in resource template.
These can be used to generating DSDT table for ACPI on ARM.
Signed-off-by: Shannon Zhao <zhaoshengl...@huawei.com>
---
hw/acpi/aml-build.c | 40 ++++++++++++++++++++++++++++++++++++++++
include/hw/acpi/aml-build.h | 2 ++
2 files changed, 42 insertions(+), 0 deletions(-)
diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
index f49e653..5e0c40b 100644
--- a/hw/acpi/aml-build.c
+++ b/hw/acpi/aml-build.c
@@ -538,6 +538,46 @@ Aml *aml_call4(const char *method, Aml *arg1, Aml *arg2,
Aml *arg3, Aml *arg4)
return var;
}
+/*
+ * ACPI 1.0: 6.4.3.4 Memory32Fixed (Memory Resource Descriptor Macro)
+ */
+Aml *aml_memory32_fixed(uint64_t addr, uint64_t size, uint8_t rw_flag)
+{
+ Aml *var = aml_alloc();
+ build_append_byte(var->buf, 0x86); /* Memory32Fixed Resource Descriptor */
+ build_append_byte(var->buf, 9); /* Length, bits[7:0] value = 9 */
+ build_append_byte(var->buf, 0); /* Length, bits[15:8] value = 0 */
+ build_append_byte(var->buf, rw_flag); /* Write status, 1 rw 0 ro */
+ build_append_byte(var->buf, addr & 0xff); /* Range base address bits[7:0]
*/
+ build_append_byte(var->buf, (addr >> 8) & 0xff); /* Range base address
bits[15:8] */
+ build_append_byte(var->buf, (addr >> 16) & 0xff); /* Range base address
bits[23:16] */
+ build_append_byte(var->buf, (addr >> 24) & 0xff); /* Range base address
bits[31:24] */
+
+ build_append_byte(var->buf, size & 0xff); /* Range length bits[7:0] */
+ build_append_byte(var->buf, (size >> 8) & 0xff); /* Range length
bits[15:8] */
+ build_append_byte(var->buf, (size >> 16) & 0xff); /* Range length
bits[23:16] */
+ build_append_byte(var->buf, (size >> 24) & 0xff); /* Range length
bits[31:24] */
+ return var;
+}
+
+/*
+ * ACPI 1.0: 6.4.3.6 Interrupt (Interrupt Resource Descriptor Macro)
+ */
+Aml *aml_interrupt(uint8_t irq_flags, int irq)
+{
+ Aml *var = aml_alloc();
+ build_append_byte(var->buf, 0x89); /* Extended irq descriptor */
+ build_append_byte(var->buf, 6); /* Length, bits[7:0] minimum value = 6 */
+ build_append_byte(var->buf, 0); /* Length, bits[15:8] minimum value = 0 */
+ build_append_byte(var->buf, irq_flags); /* Interrupt Vector Information. */
+ build_append_byte(var->buf, 0x01); /* Interrupt table length = 1 */
+ build_append_byte(var->buf, irq & 0xff); /* Interrupt Number bits[7:0] */
+ build_append_byte(var->buf, (irq >> 8) & 0xff); /* Interrupt Number
bits[15:8] */
+ build_append_byte(var->buf, (irq >> 16) & 0xff); /* Interrupt Number
bits[23:16] */
+ build_append_byte(var->buf, (irq >> 24) & 0xff); /* Interrupt Number
bits[31:24] */
+ 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)
diff --git a/include/hw/acpi/aml-build.h b/include/hw/acpi/aml-build.h
index 6296ea1..eb9ba0d 100644
--- a/include/hw/acpi/aml-build.h
+++ b/include/hw/acpi/aml-build.h
@@ -162,6 +162,8 @@ 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_memory32_fixed(uint64_t addr, uint64_t size, uint8_t rw_flag);
+Aml *aml_interrupt(uint8_t irq_flags, int irq);
Aml *aml_io(AmlIODecode dec, uint16_t min_base, uint16_t max_base,
uint8_t aln, uint8_t len);
Aml *aml_operation_region(const char *name, AmlRegionSpace rs,
--
1.7.1
