cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

dc_edid_parser.c (2225B)

      1/*
      2 * Copyright 2021 Advanced Micro Devices, Inc.
      3 *
      4 * Permission is hereby granted, free of charge, to any person obtaining a
      5 * copy of this software and associated documentation files (the "Software"),
      6 * to deal in the Software without restriction, including without limitation
      7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      8 * and/or sell copies of the Software, and to permit persons to whom the
      9 * Software is furnished to do so, subject to the following conditions:
     10 *
     11 * The above copyright notice and this permission notice shall be included in
     12 * all copies or substantial portions of the Software.
     13 *
     14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
     18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     20 * OTHER DEALINGS IN THE SOFTWARE.
     21 *
     22 * Authors: AMD
     23 *
     24 */
     25
     26#include "dce/dce_dmcu.h"
     27#include "dc_edid_parser.h"
     28
     29bool dc_edid_parser_send_cea(struct dc *dc,
     30		int offset,
     31		int total_length,
     32		uint8_t *data,
     33		int length)
     34{
     35	struct dmcu *dmcu = dc->res_pool->dmcu;
     36
     37	if (dmcu &&
     38	    dmcu->funcs->is_dmcu_initialized(dmcu) &&
     39	    dmcu->funcs->send_edid_cea) {
     40		return dmcu->funcs->send_edid_cea(dmcu,
     41				offset,
     42				total_length,
     43				data,
     44				length);
     45	}
     46
     47	return false;
     48}
     49
     50bool dc_edid_parser_recv_cea_ack(struct dc *dc, int *offset)
     51{
     52	struct dmcu *dmcu = dc->res_pool->dmcu;
     53
     54	if (dmcu &&
     55	    dmcu->funcs->is_dmcu_initialized(dmcu) &&
     56	    dmcu->funcs->recv_edid_cea_ack) {
     57		return dmcu->funcs->recv_edid_cea_ack(dmcu, offset);
     58	}
     59
     60	return false;
     61}
     62
     63bool dc_edid_parser_recv_amd_vsdb(struct dc *dc,
     64		int *version,
     65		int *min_frame_rate,
     66		int *max_frame_rate)
     67{
     68	struct dmcu *dmcu = dc->res_pool->dmcu;
     69
     70	if (dmcu &&
     71	    dmcu->funcs->is_dmcu_initialized(dmcu) &&
     72	    dmcu->funcs->recv_amd_vsdb) {
     73		return dmcu->funcs->recv_amd_vsdb(dmcu,
     74				version,
     75				min_frame_rate,
     76				max_frame_rate);
     77	}
     78
     79	return false;
     80}