1 /*
2  * Copyright 2012 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 "priv.h"
25 
26 #include <core/option.h>
27 #include <subdev/vga.h>
28 
29 u32
30 nvkm_devinit_mmio(struct nvkm_devinit *init, u32 addr)
31 {
32 	if (init->func->mmio)
33 		addr = init->func->mmio(init, addr);
34 	return addr;
35 }
36 
37 int
38 nvkm_devinit_pll_set(struct nvkm_devinit *init, u32 type, u32 khz)
39 {
40 	return init->func->pll_set(init, type, khz);
41 }
42 
43 void
44 nvkm_devinit_meminit(struct nvkm_devinit *init)
45 {
46 	if (init->func->meminit)
47 		init->func->meminit(init);
48 }
49 
50 u64
51 nvkm_devinit_disable(struct nvkm_devinit *init)
52 {
53 	if (init && init->func->disable)
54 		return init->func->disable(init);
55 	return 0;
56 }
57 
58 int
59 nvkm_devinit_post(struct nvkm_devinit *init, u64 *disable)
60 {
61 	int ret = 0;
62 	if (init && init->func->post)
63 		ret = init->func->post(init, init->post);
64 	*disable = nvkm_devinit_disable(init);
65 	return ret;
66 }
67 
68 static int
69 nvkm_devinit_fini(struct nvkm_subdev *subdev, bool suspend)
70 {
71 	struct nvkm_devinit *init = nvkm_devinit(subdev);
72 	/* force full reinit on resume */
73 	if (suspend)
74 		init->post = true;
75 	return 0;
76 }
77 
78 static int
79 nvkm_devinit_preinit(struct nvkm_subdev *subdev)
80 {
81 	struct nvkm_devinit *init = nvkm_devinit(subdev);
82 
83 	if (init->func->preinit)
84 		init->func->preinit(init);
85 
86 	/* Override the post flag during the first call if NvForcePost is set */
87 	if (init->force_post) {
88 		init->post = init->force_post;
89 		init->force_post = false;
90 	}
91 
92 	/* unlock the extended vga crtc regs */
93 	nvkm_lockvgac(subdev->device, false);
94 	return 0;
95 }
96 
97 static int
98 nvkm_devinit_init(struct nvkm_subdev *subdev)
99 {
100 	struct nvkm_devinit *init = nvkm_devinit(subdev);
101 	if (init->func->init)
102 		init->func->init(init);
103 	return 0;
104 }
105 
106 static void *
107 nvkm_devinit_dtor(struct nvkm_subdev *subdev)
108 {
109 	struct nvkm_devinit *init = nvkm_devinit(subdev);
110 	void *data = init;
111 
112 	if (init->func->dtor)
113 		data = init->func->dtor(init);
114 
115 	/* lock crtc regs */
116 	nvkm_lockvgac(subdev->device, true);
117 	return data;
118 }
119 
120 static const struct nvkm_subdev_func
121 nvkm_devinit = {
122 	.dtor = nvkm_devinit_dtor,
123 	.preinit = nvkm_devinit_preinit,
124 	.init = nvkm_devinit_init,
125 	.fini = nvkm_devinit_fini,
126 };
127 
128 void
129 nvkm_devinit_ctor(const struct nvkm_devinit_func *func,
130 		  struct nvkm_device *device, int index,
131 		  struct nvkm_devinit *init)
132 {
133 	nvkm_subdev_ctor(&nvkm_devinit, device, index, &init->subdev);
134 	init->func = func;
135 	init->force_post = nvkm_boolopt(device->cfgopt, "NvForcePost", false);
136 }
137