1 #include "qemu/osdep.h" 2 #include "exec/memory.h" 3 #include "hw/display/edid.h" 4 5 static uint64_t edid_region_read(void *ptr, hwaddr addr, unsigned size) 6 { 7 uint8_t *edid = ptr; 8 9 return edid[addr]; 10 } 11 12 static void edid_region_write(void *ptr, hwaddr addr, 13 uint64_t val, unsigned size) 14 { 15 /* read only */ 16 } 17 18 static const MemoryRegionOps edid_region_ops = { 19 .read = edid_region_read, 20 .write = edid_region_write, 21 .valid.min_access_size = 1, 22 .valid.max_access_size = 4, 23 .impl.min_access_size = 1, 24 .impl.max_access_size = 1, 25 .endianness = DEVICE_LITTLE_ENDIAN, 26 }; 27 28 void qemu_edid_region_io(MemoryRegion *region, Object *owner, 29 uint8_t *edid, size_t size) 30 { 31 memory_region_init_io(region, owner, &edid_region_ops, 32 edid, "edid", size); 33 } 34