virtio-mmio: discover devices from ACPI

https://www.kernel.org/doc/Documentation/arm64/arm-acpi.txt https://wiki.linaro.org/LEG/ServerArchitecture/ACPI/LinaroRegistry Change-Id: I330a497173c0a82b789a43720e3d86e1513a661b Reviewed-on: https://review.haiku-os.org/c/haiku/+/5506 Reviewed-by: Fredrik Holmqvist <[email protected]>
2022-08-13 09:43:41 +00:00
parent 0f1217b8fb
commit 079db739a6
2 changed files with 214 additions and 54 deletions
@@ -277,4 +277,48 @@ enum {
 };


+/* The following definitions are adapted from acpica/include/acrestyp.h */
+
+
+typedef struct acpi_resource_source
+{
+	uint8 index;
+	uint16 string_length;
+	char *string_ptr;
+} _PACKED acpi_resource_source;
+
+typedef struct acpi_resource_fixed_memory32 {
+	uint8 write_protect;
+	uint32 address;
+	uint32 address_length;
+} _PACKED acpi_resource_fixed_memory32;
+
+typedef struct acpi_resource_extended_irq {
+	uint8 producer_consumer;
+	uint8 triggering;
+	uint8 polarity;
+	uint8 shareable;
+	uint8 wake_capable;
+	uint8 interrupt_count;
+	acpi_resource_source resource_source;
+	uint32 interrupts[1];
+} _PACKED acpi_resource_extended_irq;
+
+typedef union acpi_resource_data {
+	acpi_resource_fixed_memory32 fixed_memory32;
+	acpi_resource_extended_irq extended_irq;
+} acpi_resource_data;
+
+typedef struct acpi_resource {
+	uint32 type;
+	uint32 length;
+	acpi_resource_data data;
+} _PACKED acpi_resource;
+
+enum {
+	ACPI_RESOURCE_TYPE_FIXED_MEMORY32 = 10,
+	ACPI_RESOURCE_TYPE_EXTENDED_IRQ = 15,
+};
+
+
 #endif	/* _KERNEL_ACPI_H */