1 /*
2  * Copyright 2014 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  * Authors: Ben Skeggs
23  */
24 #include "outp.h"
25 #include "priv.h"
26 
27 #include <subdev/bios.h>
28 #include <subdev/bios/conn.h>
29 #include <subdev/bios/dcb.h>
30 #include <subdev/i2c.h>
31 
32 int
33 _nvkm_output_fini(struct nvkm_object *object, bool suspend)
34 {
35 	struct nvkm_output *outp = (void *)object;
36 	nv_ofuncs(outp->conn)->fini(nv_object(outp->conn), suspend);
37 	return nvkm_object_fini(&outp->base, suspend);
38 }
39 
40 int
41 _nvkm_output_init(struct nvkm_object *object)
42 {
43 	struct nvkm_output *outp = (void *)object;
44 	int ret = nvkm_object_init(&outp->base);
45 	if (ret == 0)
46 		nv_ofuncs(outp->conn)->init(nv_object(outp->conn));
47 	return 0;
48 }
49 
50 void
51 _nvkm_output_dtor(struct nvkm_object *object)
52 {
53 	struct nvkm_output *outp = (void *)object;
54 	list_del(&outp->head);
55 	nvkm_object_ref(NULL, (void *)&outp->conn);
56 	nvkm_object_destroy(&outp->base);
57 }
58 
59 int
60 nvkm_output_create_(struct nvkm_object *parent,
61 		    struct nvkm_object *engine,
62 		    struct nvkm_oclass *oclass,
63 		    struct dcb_output *dcbE, int index,
64 		    int length, void **pobject)
65 {
66 	struct nvkm_disp *disp = nvkm_disp(parent);
67 	struct nvkm_bios *bios = nvkm_bios(parent);
68 	struct nvkm_i2c *i2c = nvkm_i2c(parent);
69 	struct nvbios_connE connE;
70 	struct nvkm_output *outp;
71 	u8  ver, hdr;
72 	u32 data;
73 	int ret;
74 
75 	ret = nvkm_object_create_(parent, engine, oclass, 0, length, pobject);
76 	outp = *pobject;
77 	if (ret)
78 		return ret;
79 
80 	outp->info = *dcbE;
81 	outp->index = index;
82 	outp->or = ffs(outp->info.or) - 1;
83 
84 	DBG("type %02x loc %d or %d link %d con %x edid %x bus %d head %x\n",
85 	    dcbE->type, dcbE->location, dcbE->or, dcbE->type >= 2 ?
86 	    dcbE->sorconf.link : 0, dcbE->connector, dcbE->i2c_index,
87 	    dcbE->bus, dcbE->heads);
88 
89 	if (outp->info.type != DCB_OUTPUT_DP)
90 		outp->port = i2c->find(i2c, NV_I2C_PORT(outp->info.i2c_index));
91 	else
92 		outp->port = i2c->find(i2c, NV_I2C_AUX(outp->info.i2c_index));
93 	outp->edid = outp->port;
94 
95 	data = nvbios_connEp(bios, outp->info.connector, &ver, &hdr, &connE);
96 	if (!data) {
97 		DBG("vbios connector data not found\n");
98 		memset(&connE, 0x00, sizeof(connE));
99 		connE.type = DCB_CONNECTOR_NONE;
100 	}
101 
102 	ret = nvkm_object_ctor(parent, NULL, nvkm_connector_oclass,
103 			       &connE, outp->info.connector,
104 			       (struct nvkm_object **)&outp->conn);
105 	if (ret < 0) {
106 		ERR("error %d creating connector, disabling\n", ret);
107 		return ret;
108 	}
109 
110 	list_add_tail(&outp->head, &disp->outp);
111 	return 0;
112 }
113 
114 int
115 _nvkm_output_ctor(struct nvkm_object *parent,
116 		  struct nvkm_object *engine,
117 		  struct nvkm_oclass *oclass, void *dcbE, u32 index,
118 		  struct nvkm_object **pobject)
119 {
120 	struct nvkm_output *outp;
121 	int ret;
122 
123 	ret = nvkm_output_create(parent, engine, oclass, dcbE, index, &outp);
124 	*pobject = nv_object(outp);
125 	if (ret)
126 		return ret;
127 
128 	return 0;
129 }
130 
131 struct nvkm_oclass *
132 nvkm_output_oclass = &(struct nvkm_output_impl) {
133 	.base = {
134 		.handle = 0,
135 		.ofuncs = &(struct nvkm_ofuncs) {
136 			.ctor = _nvkm_output_ctor,
137 			.dtor = _nvkm_output_dtor,
138 			.init = _nvkm_output_init,
139 			.fini = _nvkm_output_fini,
140 		},
141 	},
142 }.base;
143