qemu

FORK: QEMU emulator
git clone https://git.neptards.moe/neptards/qemu.git
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edid-region.c (848B)

      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 }