1/*
2 * Copyright 2013 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 <bskeggs@redhat.com>
23 */
24
25#include <nvif/client.h>
26#include <nvif/driver.h>
27#include <nvif/ioctl.h>
28
29#include <nvif/class.h>
30#include <nvif/if0000.h>
31
32int
33nvif_client_ioctl(struct nvif_client *client, void *data, u32 size)
34{
35	return client->driver->ioctl(client->object.priv, data, size, NULL);
36}
37
38int
39nvif_client_suspend(struct nvif_client *client)
40{
41	return client->driver->suspend(client->object.priv);
42}
43
44int
45nvif_client_resume(struct nvif_client *client)
46{
47	return client->driver->resume(client->object.priv);
48}
49
50void
51nvif_client_dtor(struct nvif_client *client)
52{
53	nvif_object_dtor(&client->object);
54	if (client->driver) {
55		if (client->driver->fini)
56			client->driver->fini(client->object.priv);
57		client->driver = NULL;
58	}
59}
60
61int
62nvif_client_ctor(struct nvif_client *parent, const char *name, u64 device,
63		 struct nvif_client *client)
64{
65	struct nvif_client_v0 args = { .device = device };
66	struct {
67		struct nvif_ioctl_v0 ioctl;
68		struct nvif_ioctl_nop_v0 nop;
69	} nop = {};
70	int ret;
71
72	strscpy_pad(args.name, name, sizeof(args.name));
73	ret = nvif_object_ctor(parent != client ? &parent->object : NULL,
74			       name ? name : "nvifClient", 0,
75			       NVIF_CLASS_CLIENT, &args, sizeof(args),
76			       &client->object);
77	if (ret)
78		return ret;
79
80	client->object.client = client;
81	client->object.handle = ~0;
82	client->route = NVIF_IOCTL_V0_ROUTE_NVIF;
83	client->driver = parent->driver;
84
85	if (ret == 0) {
86		ret = nvif_client_ioctl(client, &nop, sizeof(nop));
87		client->version = nop.nop.version;
88	}
89
90	if (ret)
91		nvif_client_dtor(client);
92	return ret;
93}
94