| 1 | #include "qemu/osdep.h" |
| 2 | #include "system/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 | } |