From: Shannon Zhao <shannon.z...@linaro.org>
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>
Signed-off-by: Shannon Zhao <shannon.z...@linaro.org>
---
hw/acpi/aml-build.c | 23 +++++++++++++++++++++
include/hw/acpi/aml-build.h | 50 +++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 73 insertions(+)
diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
index ce68d27..7553bfc 100644
--- a/hw/acpi/aml-build.c
+++ b/hw/acpi/aml-build.c
@@ -530,6 +530,29 @@ Aml *aml_memory32_fixed(uint32_t addr, uint32_t size,
return var;
}
+/*
+ * ACPI 1.0: 6.4.3.6 Interrupt (Interrupt Resource Descriptor Macro)
+ */
+Aml *aml_interrupt(AmlConsumerAndProducer con_and_pro,
+ AmlLevelAndEdge level_and_edge,
+ AmlActiveHighAndLow high_and_low,
+ AmlExclusiveAndShared exclusive_and_shared,
+ AmlWakeCap wake_capable, uint32_t irq)
+{
+ Aml *var = aml_alloc();
+ uint8_t irq_flags = con_and_pro | (level_and_edge << 1)
+ | (high_and_low << 2) | (exclusive_and_shared << 3)
+ | (wake_capable << 4);
+
+ 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_uint32(var->buf, irq); /* Interrupt Number */
+ 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 b1413a3..586a742 100644
--- a/include/hw/acpi/aml-build.h
+++ b/include/hw/acpi/aml-build.h
@@ -111,6 +111,51 @@ typedef enum {
aml_ReadWrite = 1,
} AmlReadAndWrite;
+/*
+ * ACPI 1.0b: Table 6-28 Extended Interrupt Descriptor Definition
+ * Interrupt Vector Flags Bits[0] Consumer/Producer
+ */
+typedef enum {
+ aml_consumer_producer = 0,
+ aml_consumer = 1,
+} AmlConsumerAndProducer;
+
+/*
+ * ACPI 1.0b: Table 6-28 Extended Interrupt Descriptor Definition
+ * _HE field definition
+ */
+typedef enum {
+ aml_level = 0,
+ aml_edge = 1,
+} AmlLevelAndEdge;
+
+/*
+ * ACPI 1.0b: Table 6-28 Extended Interrupt Descriptor Definition
+ * _LL field definition
+ */
+typedef enum {
+ aml_active_high = 0,
+ aml_active_low = 1,
+} AmlActiveHighAndLow;
+
+/*
+ * ACPI 1.0b: Table 6-28 Extended Interrupt Descriptor Definition
+ * _SHR field definition
+ */
+typedef enum {
+ aml_exclusive = 0,
+ aml_shared = 1,
+} AmlExclusiveAndShared;
+
+/*
+ * ACPI 5.1: Table 6-203 Extended Interrupt Descriptor Definition
+ * _WKC field definition
+ */
+typedef enum {
+ aml_not_wake_capable = 0,
+ aml_wake_capable = 1,
+} AmlWakeCap;
+
typedef
struct AcpiBuildTables {
GArray *table_data;
@@ -170,6 +215,11 @@ 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(uint32_t addr, uint32_t size,
AmlReadAndWrite read_and_write);
+Aml *aml_interrupt(AmlConsumerAndProducer con_and_pro,
+ AmlLevelAndEdge level_and_edge,
+ AmlActiveHighAndLow high_and_low,
+ AmlExclusiveAndShared exclusive_and_shared,
+ AmlWakeCap wake_capable, uint32_t 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,
--
2.1.0
