1 /*
2  * Copyright 2020 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 #include "dmub_outbox.h"
26 #include "dc_dmub_srv.h"
27 #include "dmub/inc/dmub_cmd.h"
28 
29 /**
30  *  dmub_enable_outbox_notification - Sends inbox cmd to dmub to enable outbox1
31  *                                    messages with interrupt. Dmub sends outbox1
32  *                                    message and triggers outbox1 interrupt.
33  * @dc: dc structure
34  */
35 void dmub_enable_outbox_notification(struct dc *dc)
36 {
37 	union dmub_rb_cmd cmd;
38 	struct dc_context *dc_ctx = dc->ctx;
39 
40 	memset(&cmd, 0x0, sizeof(cmd));
41 	cmd.outbox1_enable.header.type = DMUB_CMD__OUTBOX1_ENABLE;
42 	cmd.outbox1_enable.header.sub_type = 0;
43 	cmd.outbox1_enable.header.payload_bytes =
44 		sizeof(cmd.outbox1_enable) -
45 		sizeof(cmd.outbox1_enable.header);
46 	cmd.outbox1_enable.enable = true;
47 
48 	dc_dmub_srv_cmd_queue(dc_ctx->dmub_srv, &cmd);
49 	dc_dmub_srv_cmd_execute(dc_ctx->dmub_srv);
50 	dc_dmub_srv_wait_idle(dc_ctx->dmub_srv);
51 }
52