1/*	$NetBSD: nouveau_nvif_client.c,v 1.3 2021/12/18 23:45:33 riastradh Exp $	*/
2
3/*
4 * Copyright 2013 Red Hat Inc.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 *
24 * Authors: Ben Skeggs <bskeggs@redhat.com>
25 */
26
27#include <sys/cdefs.h>
28__KERNEL_RCSID(0, "$NetBSD: nouveau_nvif_client.c,v 1.3 2021/12/18 23:45:33 riastradh Exp $");
29
30#include <nvif/client.h>
31#include <nvif/driver.h>
32#include <nvif/ioctl.h>
33
34#include <nvif/class.h>
35#include <nvif/if0000.h>
36
37int
38nvif_client_ioctl(struct nvif_client *client, void *data, u32 size)
39{
40	return client->driver->ioctl(client->object.priv, client->super, data, size, NULL);
41}
42
43int
44nvif_client_suspend(struct nvif_client *client)
45{
46	return client->driver->suspend(client->object.priv);
47}
48
49int
50nvif_client_resume(struct nvif_client *client)
51{
52	return client->driver->resume(client->object.priv);
53}
54
55void
56nvif_client_fini(struct nvif_client *client)
57{
58	nvif_object_fini(&client->object);
59	if (client->driver) {
60		if (client->driver->fini)
61			client->driver->fini(client->object.priv);
62		client->driver = NULL;
63	}
64}
65
66int
67nvif_client_init(struct nvif_client *parent, const char *name, u64 device,
68		 struct nvif_client *client)
69{
70	struct nvif_client_v0 args = { .device = device };
71	struct {
72		struct nvif_ioctl_v0 ioctl;
73		struct nvif_ioctl_nop_v0 nop;
74	} nop = {};
75	int ret;
76
77	strncpy(args.name, name, sizeof(args.name));
78	ret = nvif_object_init(parent != client ? &parent->object : NULL,
79			       0, NVIF_CLASS_CLIENT, &args, sizeof(args),
80			       &client->object);
81	if (ret)
82		return ret;
83
84	client->object.client = client;
85	client->object.handle = ~0;
86	client->route = NVIF_IOCTL_V0_ROUTE_NVIF;
87	client->super = true;
88	client->driver = parent->driver;
89
90	if (ret == 0) {
91		ret = nvif_client_ioctl(client, &nop, sizeof(nop));
92		client->version = nop.nop.version;
93	}
94
95	if (ret)
96		nvif_client_fini(client);
97	return ret;
98}
99