LXR qemu/hw/display/edid-region.c

   1#include "qemu/osdep.h"
   2#include "exec/memory.h"
   3#include "hw/display/edid.h"
   4
   5static uint64_t edid_region_read(void *ptr, hwaddr addr, unsigned size)
   6{
   7    uint8_t *edid = ptr;
   8
   9    return edid[addr];
  10}
  11
  12static void edid_region_write(void *ptr, hwaddr addr,
  13                             uint64_t val, unsigned size)
  14{
  15    /* read only */
  16}
  17
  18static 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
  28void 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