1 /* $NetBSD: vbox_drv.c,v 1.4 2017/06/01 02:45:09 chs Exp $ */
2
3 /*
4 * Copyright (c) 2011 Jared D. McNeill <jmcneill@invisible.ca>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. The name of the author may not be used to endorse or promote products
13 * derived from this software without specific prior written permission.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
20 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
21 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
22 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28 #include <sys/cdefs.h>
29 __KERNEL_RCSID(0, "$NetBSD: vbox_drv.c,v 1.4 2017/06/01 02:45:09 chs Exp $");
30
31 #include "drmP.h"
32 #include "drm.h"
33
34 static drm_pci_id_list_t vboxdrm_pciidlist[] = {
35 { 0x80ee, 0xbeef, 0, "VirtualBox Video" },
36 { 0, 0, 0, NULL },
37 };
38
39 static int
vboxdrm_driver_load(struct drm_device * dev,unsigned long flags)40 vboxdrm_driver_load(struct drm_device *dev, unsigned long flags)
41 {
42 return drm_vblank_init(dev, 1);
43 }
44
45 static void
vboxdrm_configure(struct drm_device * dev)46 vboxdrm_configure(struct drm_device *dev)
47 {
48 dev->driver->buf_priv_size = 1;
49 dev->driver->load = vboxdrm_driver_load;
50 dev->driver->name = "vbox";
51 dev->driver->desc = "VirtualBox Video";
52 dev->driver->date = "20110130";
53 dev->driver->major = 1;
54 dev->driver->minor = 0;
55 dev->driver->patchlevel = 0;
56 }
57
58 static int
vboxdrm_match(device_t parent,cfdata_t match,void * opaque)59 vboxdrm_match(device_t parent, cfdata_t match, void *opaque)
60 {
61 struct pci_attach_args *pa = opaque;
62
63 return drm_probe(pa, vboxdrm_pciidlist);
64 }
65
66 static void
vboxdrm_attach(device_t parent,device_t self,void * opaque)67 vboxdrm_attach(device_t parent, device_t self, void *opaque)
68 {
69 struct pci_attach_args *pa = opaque;
70 struct drm_device *dev = device_private(self);
71
72 if (!pmf_device_register(self, NULL, NULL))
73 aprint_error_dev(self, "couldn't establish power handler\n");
74
75 dev->driver = kmem_zalloc(sizeof(struct drm_driver_info), KM_SLEEP);
76 vboxdrm_configure(dev);
77 drm_attach(self, pa, vboxdrm_pciidlist);
78 }
79
80 static int
vboxdrm_detach(device_t self,int flags)81 vboxdrm_detach(device_t self, int flags)
82 {
83 struct drm_device *dev = device_private(self);
84 int error;
85
86 pmf_device_deregister(self);
87
88 error = drm_detach(self, flags);
89 kmem_free(dev->driver, sizeof(struct drm_driver_info));
90
91 return error;
92 }
93
94 CFATTACH_DECL_NEW(
95 vboxdrm,
96 sizeof(struct drm_device),
97 vboxdrm_match,
98 vboxdrm_attach,
99 vboxdrm_detach,
100 NULL
101 );
102
103 MODULE(MODULE_CLASS_DRIVER, vboxdrm, "drm");
104
105 #ifdef _MODULE
106 #include "ioconf.c"
107 #endif
108
109 static int
vboxdrm_modcmd(modcmd_t cmd,void * opaque)110 vboxdrm_modcmd(modcmd_t cmd, void *opaque)
111 {
112 switch (cmd) {
113 #ifdef _MODULE
114 case MODULE_CMD_INIT:
115 return config_init_component(cfdriver_ioconf_vboxdrm,
116 cfattach_ioconf_vboxdrm, cfdata_ioconf_vboxdrm);
117 case MODULE_CMD_FINI:
118 return config_fini_component(cfdriver_ioconf_vboxdrm,
119 cfattach_ioconf_vboxdrm, cfdata_ioconf_vboxdrm);
120 #else
121 case MODULE_CMD_INIT:
122 case MODULE_CMD_FINI:
123 return 0;
124 #endif
125 default:
126 return ENOTTY;
127 }
128 }
129