@@ -1,6 +1,8 @@
#ifndef EDID_H
#define EDID_H
+#include "hw/hw.h"
+
typedef struct qemu_edid_info {
const char *vendor;
const char *name;
@@ -15,5 +17,7 @@ typedef struct qemu_edid_info {
void qemu_edid_generate(uint8_t *edid, size_t size,
qemu_edid_info *info);
size_t qemu_edid_size(uint8_t *edid);
+void qemu_edid_region_io(MemoryRegion *region, Object *owner,
+ uint8_t *edid, size_t size);
#endif /* EDID_H */
new file mode 100644
@@ -0,0 +1,33 @@
+#include "qemu/osdep.h"
+#include "qemu-common.h"
+#include "hw/display/edid.h"
+
+static uint64_t edid_region_read(void *ptr, hwaddr addr, unsigned size)
+{
+ uint8_t *edid = ptr;
+
+ return edid[addr];
+}
+
+static void edid_region_write(void *ptr, hwaddr addr,
+ uint64_t val, unsigned size)
+{
+ /* read only */
+}
+
+static const MemoryRegionOps edid_region_ops = {
+ .read = edid_region_read,
+ .write = edid_region_write,
+ .valid.min_access_size = 1,
+ .valid.max_access_size = 4,
+ .impl.min_access_size = 1,
+ .impl.max_access_size = 1,
+ .endianness = DEVICE_LITTLE_ENDIAN,
+};
+
+void qemu_edid_region_io(MemoryRegion *region, Object *owner,
+ uint8_t *edid, size_t size)
+{
+ memory_region_init_io(region, owner, &edid_region_ops,
+ edid, "edid", size);
+}
@@ -15,6 +15,7 @@ common-obj-$(CONFIG_XEN) += xenfb.o
common-obj-$(CONFIG_VGA_PCI) += vga-pci.o
common-obj-$(CONFIG_VGA_PCI) += bochs-display.o
+common-obj-$(CONFIG_VGA_PCI) += edid-region.o
common-obj-$(CONFIG_VGA_ISA) += vga-isa.o
common-obj-$(CONFIG_VGA_ISA_MM) += vga-isa-mm.o
common-obj-$(CONFIG_VMWARE_VGA) += vmware_vga.o