xref: /openbmc/linux/drivers/gpu/drm/nouveau/nvif/outp.c (revision f530bc60a30bee47ff51b7fb71511fdd058b774a)
1 /*
2  * Copyright 2021 Red Hat 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 #include <nvif/outp.h>
23 #include <nvif/disp.h>
24 #include <nvif/printf.h>
25 
26 #include <nvif/class.h>
27 
28 int
29 nvif_outp_infoframe(struct nvif_outp *outp, u8 type, struct nvif_outp_infoframe_v0 *args, u32 size)
30 {
31 	int ret;
32 
33 	args->type = type;
34 
35 	ret = nvif_mthd(&outp->object, NVIF_OUTP_V0_INFOFRAME, args, sizeof(*args) + size);
36 	NVIF_ERRON(ret, &outp->object, "[INFOFRAME type:%d size:%d]", type, size);
37 	return ret;
38 }
39 
40 void
41 nvif_outp_release(struct nvif_outp *outp)
42 {
43 	int ret = nvif_mthd(&outp->object, NVIF_OUTP_V0_RELEASE, NULL, 0);
44 	NVIF_ERRON(ret, &outp->object, "[RELEASE]");
45 	outp->or.id = -1;
46 }
47 
48 static inline int
49 nvif_outp_acquire(struct nvif_outp *outp, u8 proto, struct nvif_outp_acquire_v0 *args)
50 {
51 	int ret;
52 
53 	args->version = 0;
54 	args->proto = proto;
55 
56 	ret = nvif_mthd(&outp->object, NVIF_OUTP_V0_ACQUIRE, args, sizeof(*args));
57 	if (ret)
58 		return ret;
59 
60 	outp->or.id = args->or;
61 	outp->or.link = args->link;
62 	return 0;
63 }
64 
65 int
66 nvif_outp_acquire_dp(struct nvif_outp *outp,  bool hda)
67 {
68 	struct nvif_outp_acquire_v0 args;
69 	int ret;
70 
71 	args.dp.hda = hda;
72 
73 	ret = nvif_outp_acquire(outp, NVIF_OUTP_ACQUIRE_V0_DP, &args);
74 	NVIF_ERRON(ret, &outp->object,
75 		   "[ACQUIRE proto:DP hda:%d] or:%d link:%d", args.dp.hda, args.or, args.link);
76 	return ret;
77 }
78 
79 int
80 nvif_outp_acquire_lvds(struct nvif_outp *outp, bool dual, bool bpc8)
81 {
82 	struct nvif_outp_acquire_v0 args;
83 	int ret;
84 
85 	args.lvds.dual = dual;
86 	args.lvds.bpc8 = bpc8;
87 
88 	ret = nvif_outp_acquire(outp, NVIF_OUTP_ACQUIRE_V0_LVDS, &args);
89 	NVIF_ERRON(ret, &outp->object,
90 		   "[ACQUIRE proto:LVDS dual:%d 8bpc:%d] or:%d link:%d",
91 		   args.lvds.dual, args.lvds.bpc8, args.or, args.link);
92 	return ret;
93 }
94 
95 int
96 nvif_outp_acquire_tmds(struct nvif_outp *outp, int head,
97 		       bool hdmi, u8 max_ac_packet, u8 rekey, u8 scdc, bool hda)
98 {
99 	struct nvif_outp_acquire_v0 args;
100 	int ret;
101 
102 	args.tmds.head = head;
103 	args.tmds.hdmi = hdmi;
104 	args.tmds.hdmi_max_ac_packet = max_ac_packet;
105 	args.tmds.hdmi_rekey = rekey;
106 	args.tmds.hdmi_scdc = scdc;
107 	args.tmds.hdmi_hda = hda;
108 
109 	ret = nvif_outp_acquire(outp, NVIF_OUTP_ACQUIRE_V0_TMDS, &args);
110 	NVIF_ERRON(ret, &outp->object,
111 		   "[ACQUIRE proto:TMDS head:%d hdmi:%d max_ac_packet:%d rekey:%d scdc:%d hda:%d]"
112 		   " or:%d link:%d", args.tmds.head, args.tmds.hdmi, args.tmds.hdmi_max_ac_packet,
113 		   args.tmds.hdmi_rekey, args.tmds.hdmi_scdc, args.tmds.hdmi_hda,
114 		   args.or, args.link);
115 	return ret;
116 }
117 
118 int
119 nvif_outp_acquire_rgb_crt(struct nvif_outp *outp)
120 {
121 	struct nvif_outp_acquire_v0 args;
122 	int ret;
123 
124 	ret = nvif_outp_acquire(outp, NVIF_OUTP_ACQUIRE_V0_RGB_CRT, &args);
125 	NVIF_ERRON(ret, &outp->object, "[ACQUIRE proto:RGB_CRT] or:%d", args.or);
126 	return ret;
127 }
128 
129 int
130 nvif_outp_load_detect(struct nvif_outp *outp, u32 loadval)
131 {
132 	struct nvif_outp_load_detect_v0 args;
133 	int ret;
134 
135 	args.version = 0;
136 	args.data = loadval;
137 
138 	ret = nvif_mthd(&outp->object, NVIF_OUTP_V0_LOAD_DETECT, &args, sizeof(args));
139 	NVIF_ERRON(ret, &outp->object, "[LOAD_DETECT data:%08x] load:%02x", args.data, args.load);
140 	return ret < 0 ? ret : args.load;
141 }
142 
143 void
144 nvif_outp_dtor(struct nvif_outp *outp)
145 {
146 	nvif_object_dtor(&outp->object);
147 }
148 
149 int
150 nvif_outp_ctor(struct nvif_disp *disp, const char *name, int id, struct nvif_outp *outp)
151 {
152 	struct nvif_outp_v0 args;
153 	int ret;
154 
155 	args.version = 0;
156 	args.id = id;
157 
158 	ret = nvif_object_ctor(&disp->object, name ?: "nvifOutp", id, NVIF_CLASS_OUTP,
159 			       &args, sizeof(args), &outp->object);
160 	NVIF_ERRON(ret, &disp->object, "[NEW outp id:%d]", id);
161 	if (ret)
162 		return ret;
163 
164 	outp->or.id = -1;
165 	return 0;
166 }
167