linux-brain/drivers/media/cec/cec-edid.c

25 lines
627 B
C

// SPDX-License-Identifier: GPL-2.0-only
/*
* cec-edid - HDMI Consumer Electronics Control EDID & CEC helper functions
*
* Copyright 2016 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <media/cec.h>
u16 cec_get_edid_phys_addr(const u8 *edid, unsigned int size,
unsigned int *offset)
{
unsigned int loc = cec_get_edid_spa_location(edid, size);
if (offset)
*offset = loc;
if (loc == 0)
return CEC_PHYS_ADDR_INVALID;
return (edid[loc] << 8) | edid[loc + 1];
}
EXPORT_SYMBOL_GPL(cec_get_edid_phys_addr);