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 #define nvkm_uconn(p) container_of((p), struct nvkm_conn, object)
23 #include "conn.h"
24 #include "outp.h"
25
26 #include <core/client.h>
27 #include <core/event.h>
28 #include <subdev/gpio.h>
29 #include <subdev/i2c.h>
30
31 #include <nvif/if0011.h>
32
33 static int
nvkm_uconn_uevent_gsp(struct nvkm_object * object,u64 token,u32 bits)34 nvkm_uconn_uevent_gsp(struct nvkm_object *object, u64 token, u32 bits)
35 {
36 union nvif_conn_event_args args;
37
38 args.v0.version = 0;
39 args.v0.types = 0;
40 if (bits & NVKM_DPYID_PLUG)
41 args.v0.types |= NVIF_CONN_EVENT_V0_PLUG;
42 if (bits & NVKM_DPYID_UNPLUG)
43 args.v0.types |= NVIF_CONN_EVENT_V0_UNPLUG;
44 if (bits & NVKM_DPYID_IRQ)
45 args.v0.types |= NVIF_CONN_EVENT_V0_IRQ;
46
47 return object->client->event(token, &args, sizeof(args.v0));
48 }
49
50 static int
nvkm_uconn_uevent_aux(struct nvkm_object * object,u64 token,u32 bits)51 nvkm_uconn_uevent_aux(struct nvkm_object *object, u64 token, u32 bits)
52 {
53 union nvif_conn_event_args args;
54
55 args.v0.version = 0;
56 args.v0.types = 0;
57 if (bits & NVKM_I2C_PLUG)
58 args.v0.types |= NVIF_CONN_EVENT_V0_PLUG;
59 if (bits & NVKM_I2C_UNPLUG)
60 args.v0.types |= NVIF_CONN_EVENT_V0_UNPLUG;
61 if (bits & NVKM_I2C_IRQ)
62 args.v0.types |= NVIF_CONN_EVENT_V0_IRQ;
63
64 return object->client->event(token, &args, sizeof(args.v0));
65 }
66
67 static int
nvkm_uconn_uevent_gpio(struct nvkm_object * object,u64 token,u32 bits)68 nvkm_uconn_uevent_gpio(struct nvkm_object *object, u64 token, u32 bits)
69 {
70 union nvif_conn_event_args args;
71
72 args.v0.version = 0;
73 args.v0.types = 0;
74 if (bits & NVKM_GPIO_HI)
75 args.v0.types |= NVIF_CONN_EVENT_V0_PLUG;
76 if (bits & NVKM_GPIO_LO)
77 args.v0.types |= NVIF_CONN_EVENT_V0_UNPLUG;
78
79 return object->client->event(token, &args, sizeof(args.v0));
80 }
81
82 static bool
nvkm_connector_is_dp_dms(u8 type)83 nvkm_connector_is_dp_dms(u8 type)
84 {
85 switch (type) {
86 case DCB_CONNECTOR_DMS59_DP0:
87 case DCB_CONNECTOR_DMS59_DP1:
88 return true;
89 default:
90 return false;
91 }
92 }
93
94 static int
nvkm_uconn_uevent(struct nvkm_object * object,void * argv,u32 argc,struct nvkm_uevent * uevent)95 nvkm_uconn_uevent(struct nvkm_object *object, void *argv, u32 argc, struct nvkm_uevent *uevent)
96 {
97 struct nvkm_conn *conn = nvkm_uconn(object);
98 struct nvkm_disp *disp = conn->disp;
99 struct nvkm_device *device = disp->engine.subdev.device;
100 struct nvkm_outp *outp;
101 union nvif_conn_event_args *args = argv;
102 u64 bits = 0;
103
104 if (!uevent) {
105 if (!disp->rm.client.gsp && conn->info.hpd == DCB_GPIO_UNUSED)
106 return -ENOSYS;
107 return 0;
108 }
109
110 if (argc != sizeof(args->v0) || args->v0.version != 0)
111 return -ENOSYS;
112
113 list_for_each_entry(outp, &conn->disp->outps, head) {
114 if (outp->info.connector == conn->index)
115 break;
116 }
117
118 if (&outp->head == &conn->disp->outps)
119 return -EINVAL;
120
121 if (disp->rm.client.gsp) {
122 if (args->v0.types & NVIF_CONN_EVENT_V0_PLUG ) bits |= NVKM_DPYID_PLUG;
123 if (args->v0.types & NVIF_CONN_EVENT_V0_UNPLUG) bits |= NVKM_DPYID_UNPLUG;
124 if (args->v0.types & NVIF_CONN_EVENT_V0_IRQ ) bits |= NVKM_DPYID_IRQ;
125
126 return nvkm_uevent_add(uevent, &disp->rm.event, outp->index, bits,
127 nvkm_uconn_uevent_gsp);
128 }
129
130 if (outp->dp.aux && !outp->info.location) {
131 if (args->v0.types & NVIF_CONN_EVENT_V0_PLUG ) bits |= NVKM_I2C_PLUG;
132 if (args->v0.types & NVIF_CONN_EVENT_V0_UNPLUG) bits |= NVKM_I2C_UNPLUG;
133 if (args->v0.types & NVIF_CONN_EVENT_V0_IRQ ) bits |= NVKM_I2C_IRQ;
134
135 return nvkm_uevent_add(uevent, &device->i2c->event, outp->dp.aux->id, bits,
136 nvkm_uconn_uevent_aux);
137 }
138
139 if (args->v0.types & NVIF_CONN_EVENT_V0_PLUG ) bits |= NVKM_GPIO_HI;
140 if (args->v0.types & NVIF_CONN_EVENT_V0_UNPLUG) bits |= NVKM_GPIO_LO;
141 if (args->v0.types & NVIF_CONN_EVENT_V0_IRQ) {
142 /* TODO: support DP IRQ on ANX9805 and remove this hack. */
143 if (!outp->info.location && !nvkm_connector_is_dp_dms(conn->info.type))
144 return -EINVAL;
145 }
146
147 return nvkm_uevent_add(uevent, &device->gpio->event, conn->info.hpd, bits,
148 nvkm_uconn_uevent_gpio);
149 }
150
151 static void *
nvkm_uconn_dtor(struct nvkm_object * object)152 nvkm_uconn_dtor(struct nvkm_object *object)
153 {
154 struct nvkm_conn *conn = nvkm_uconn(object);
155 struct nvkm_disp *disp = conn->disp;
156
157 spin_lock(&disp->client.lock);
158 conn->object.func = NULL;
159 spin_unlock(&disp->client.lock);
160 return NULL;
161 }
162
163 static const struct nvkm_object_func
164 nvkm_uconn = {
165 .dtor = nvkm_uconn_dtor,
166 .uevent = nvkm_uconn_uevent,
167 };
168
169 int
nvkm_uconn_new(const struct nvkm_oclass * oclass,void * argv,u32 argc,struct nvkm_object ** pobject)170 nvkm_uconn_new(const struct nvkm_oclass *oclass, void *argv, u32 argc, struct nvkm_object **pobject)
171 {
172 struct nvkm_disp *disp = nvkm_udisp(oclass->parent);
173 struct nvkm_conn *cont, *conn = NULL;
174 union nvif_conn_args *args = argv;
175 int ret;
176
177 if (argc != sizeof(args->v0) || args->v0.version != 0)
178 return -ENOSYS;
179
180 list_for_each_entry(cont, &disp->conns, head) {
181 if (cont->index == args->v0.id) {
182 conn = cont;
183 break;
184 }
185 }
186
187 if (!conn)
188 return -EINVAL;
189
190 ret = -EBUSY;
191 spin_lock(&disp->client.lock);
192 if (!conn->object.func) {
193 switch (conn->info.type) {
194 case DCB_CONNECTOR_VGA : args->v0.type = NVIF_CONN_V0_VGA; break;
195 case DCB_CONNECTOR_TV_0 :
196 case DCB_CONNECTOR_TV_1 :
197 case DCB_CONNECTOR_TV_3 : args->v0.type = NVIF_CONN_V0_TV; break;
198 case DCB_CONNECTOR_DMS59_0 :
199 case DCB_CONNECTOR_DMS59_1 :
200 case DCB_CONNECTOR_DVI_I : args->v0.type = NVIF_CONN_V0_DVI_I; break;
201 case DCB_CONNECTOR_DVI_D : args->v0.type = NVIF_CONN_V0_DVI_D; break;
202 case DCB_CONNECTOR_LVDS : args->v0.type = NVIF_CONN_V0_LVDS; break;
203 case DCB_CONNECTOR_LVDS_SPWG: args->v0.type = NVIF_CONN_V0_LVDS_SPWG; break;
204 case DCB_CONNECTOR_DMS59_DP0:
205 case DCB_CONNECTOR_DMS59_DP1:
206 case DCB_CONNECTOR_DP :
207 case DCB_CONNECTOR_mDP :
208 case DCB_CONNECTOR_USB_C : args->v0.type = NVIF_CONN_V0_DP; break;
209 case DCB_CONNECTOR_eDP : args->v0.type = NVIF_CONN_V0_EDP; break;
210 case DCB_CONNECTOR_HDMI_0 :
211 case DCB_CONNECTOR_HDMI_1 :
212 case DCB_CONNECTOR_HDMI_C : args->v0.type = NVIF_CONN_V0_HDMI; break;
213 default:
214 WARN_ON(1);
215 ret = -EINVAL;
216 break;
217 }
218
219 nvkm_object_ctor(&nvkm_uconn, oclass, &conn->object);
220 *pobject = &conn->object;
221 ret = 0;
222 }
223 spin_unlock(&disp->client.lock);
224 return ret;
225 }
226