[mirror_qemu.git] / hw / display / edid-region.c

#include "qemu/osdep.h"
#include "exec/memory.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);
}
Commit	Line	Data
97917e9e	1	#include "qemu/osdep.h"
d4842052	2	#include "exec/memory.h"
97917e9e GH	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	}