1/* $NetBSD: drmfb.h,v 1.1 2015/03/05 17:50:41 riastradh Exp $ */
2
3/*-
4 * Copyright (c) 2014 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Taylor R. Campbell.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#ifndef _DRM_DRMFB_H_
33#define _DRM_DRMFB_H_
34
35#include <sys/device_if.h>
36
37#include <dev/wsfb/genfbvar.h>
38
39struct drm_fb_helper;
40struct drm_fb_helper_surface_sizes;
41
42struct drmfb_attach_args;
43struct drmfb_params;
44struct drmfb_softc;
45
46struct drmfb_params {
47 /*
48 * Framebuffer mmap.
49 */
50 paddr_t (*dp_mmapfb)(struct drmfb_softc *, off_t, int);
51
52 /*
53 * Other mmap, e.g. for arbitrary PCI BARs. Available only to
54 * users with privileges for access to unmanaged memory.
55 */
56 paddr_t (*dp_mmap)(struct drmfb_softc *, off_t, int);
57
58 /*
59 * Ioctl handler. Must handle:
60 *
61 * - WSDISPLAYIO_GET_BUSID
62 * - WSDISPLAYIO_GTYPE
63 *
64 * May add or override anything else. Return EPASSTHROUGH to
65 * defer.
66 */
67 int (*dp_ioctl)(struct drmfb_softc *, unsigned long,
68 void *, int, struct lwp *);
69 /* XXX Kludge! */
70 bool (*dp_is_vga_console)(struct drm_device *);
71 void (*dp_disable_vga)(struct drm_device *);
72};
73
74struct drmfb_attach_args {
75 device_t da_dev;
76 struct drm_fb_helper *da_fb_helper;
77 const struct drm_fb_helper_surface_size *da_fb_sizes;
78 void *da_fb_vaddr;
79 const struct drmfb_params *da_params;
80};
81
82/* Treat as opaque. Must be first member of device softc. */
83struct drmfb_softc {
84 struct genfb_softc sc_genfb; /* XXX Must be first. */
85 struct drmfb_attach_args sc_da;
86};
87
88int drmfb_attach(struct drmfb_softc *, const struct drmfb_attach_args *);
89int drmfb_detach(struct drmfb_softc *, int);
90bool drmfb_shutdown(struct drmfb_softc *, int);
91
92#endif /* _DRM_DRMFB_H_ */
93