FreeBSD/Linux Kernel Cross Reference
sys/dev/drm/mga_drv.c
1 /* mga_drv.c -- Matrox G200/G400 driver -*- linux-c -*-
2 * Created: Mon Dec 13 01:56:22 1999 by jhartmann@precisioninsight.com
3 */
4 /*-
5 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
6 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
7 * All Rights Reserved.
8 *
9 * Permission is hereby granted, free of charge, to any person obtaining a
10 * copy of this software and associated documentation files (the "Software"),
11 * to deal in the Software without restriction, including without limitation
12 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
13 * and/or sell copies of the Software, and to permit persons to whom the
14 * Software is furnished to do so, subject to the following conditions:
15 *
16 * The above copyright notice and this permission notice (including the next
17 * paragraph) shall be included in all copies or substantial portions of the
18 * Software.
19 *
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
21 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
23 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
24 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
25 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
26 * OTHER DEALINGS IN THE SOFTWARE.
27 *
28 * Authors:
29 * Rickard E. (Rik) Faith <faith@valinux.com>
30 * Gareth Hughes <gareth@valinux.com>
31 *
32 */
33
34 #include <sys/cdefs.h>
35 __FBSDID("$FreeBSD: releng/6.4/sys/dev/drm/mga_drv.c 158686 2006-05-17 07:40:12Z anholt $");
36
37 #include "dev/drm/drmP.h"
38 #include "dev/drm/drm.h"
39 #include "dev/drm/mga_drm.h"
40 #include "dev/drm/mga_drv.h"
41 #include "dev/drm/drm_pciids.h"
42
43 /* drv_PCI_IDs comes from drm_pciids.h, generated from drm_pciids.txt. */
44 static drm_pci_id_list_t mga_pciidlist[] = {
45 mga_PCI_IDS
46 };
47
48 /**
49 * Determine if the device really is AGP or not.
50 *
51 * In addition to the usual tests performed by \c drm_device_is_agp, this
52 * function detects PCI G450 cards that appear to the system exactly like
53 * AGP G450 cards.
54 *
55 * \param dev The device to be tested.
56 *
57 * \returns
58 * If the device is a PCI G450, zero is returned. Otherwise non-zero is
59 * returned.
60 *
61 * \bug
62 * This function needs to be filled in! The implementation in
63 * linux-core/mga_drv.c shows what needs to be done.
64 */
65 static int mga_driver_device_is_agp(drm_device_t * dev)
66 {
67 device_t bus;
68
69 /* There are PCI versions of the G450. These cards have the
70 * same PCI ID as the AGP G450, but have an additional PCI-to-PCI
71 * bridge chip. We detect these cards, which are not currently
72 * supported by this driver, by looking at the device ID of the
73 * bus the "card" is on. If vendor is 0x3388 (Hint Corp) and the
74 * device is 0x0021 (HB6 Universal PCI-PCI bridge), we reject the
75 * device.
76 */
77 #if __FreeBSD_version >= 700010
78 bus = device_get_parent(device_get_parent(dev->device));
79 #else
80 bus = device_get_parent(dev->device);
81 #endif
82 if (pci_get_device(dev->device) == 0x0525 &&
83 pci_get_vendor(bus) == 0x3388 &&
84 pci_get_device(bus) == 0x0021)
85 return DRM_IS_NOT_AGP;
86 else
87 return DRM_MIGHT_BE_AGP;
88 }
89
90 static void mga_configure(drm_device_t *dev)
91 {
92 dev->driver.buf_priv_size = sizeof(drm_mga_buf_priv_t);
93 dev->driver.load = mga_driver_load;
94 dev->driver.unload = mga_driver_unload;
95 dev->driver.lastclose = mga_driver_lastclose;
96 dev->driver.vblank_wait = mga_driver_vblank_wait;
97 dev->driver.irq_preinstall = mga_driver_irq_preinstall;
98 dev->driver.irq_postinstall = mga_driver_irq_postinstall;
99 dev->driver.irq_uninstall = mga_driver_irq_uninstall;
100 dev->driver.irq_handler = mga_driver_irq_handler;
101 dev->driver.dma_ioctl = mga_dma_buffers;
102 dev->driver.dma_quiescent = mga_driver_dma_quiescent;
103 dev->driver.device_is_agp = mga_driver_device_is_agp;
104
105 dev->driver.ioctls = mga_ioctls;
106 dev->driver.max_ioctl = mga_max_ioctl;
107
108 dev->driver.name = DRIVER_NAME;
109 dev->driver.desc = DRIVER_DESC;
110 dev->driver.date = DRIVER_DATE;
111 dev->driver.major = DRIVER_MAJOR;
112 dev->driver.minor = DRIVER_MINOR;
113 dev->driver.patchlevel = DRIVER_PATCHLEVEL;
114
115 dev->driver.use_agp = 1;
116 dev->driver.require_agp = 1;
117 dev->driver.use_mtrr = 1;
118 dev->driver.use_dma = 1;
119 dev->driver.use_irq = 1;
120 dev->driver.use_vbl_irq = 1;
121 }
122
123
124
125 #ifdef __FreeBSD__
126 static int
127 mga_probe(device_t dev)
128 {
129 return drm_probe(dev, mga_pciidlist);
130 }
131
132 static int
133 mga_attach(device_t nbdev)
134 {
135 drm_device_t *dev = device_get_softc(nbdev);
136
137 bzero(dev, sizeof(drm_device_t));
138 mga_configure(dev);
139 return drm_attach(nbdev, mga_pciidlist);
140 }
141
142 static device_method_t mga_methods[] = {
143 /* Device interface */
144 DEVMETHOD(device_probe, mga_probe),
145 DEVMETHOD(device_attach, mga_attach),
146 DEVMETHOD(device_detach, drm_detach),
147
148 { 0, 0 }
149 };
150
151 static driver_t mga_driver = {
152 "drm",
153 mga_methods,
154 sizeof(drm_device_t)
155 };
156
157 extern devclass_t drm_devclass;
158 #if __FreeBSD_version >= 700010
159 DRIVER_MODULE(mga, vgapci, mga_driver, drm_devclass, 0, 0);
160 #else
161 DRIVER_MODULE(mga, pci, mga_driver, drm_devclass, 0, 0);
162 #endif
163 MODULE_DEPEND(mga, drm, 1, 1, 1);
164
165 #elif defined(__NetBSD__) || defined(__OpenBSD__)
166 #ifdef _LKM
167 CFDRIVER_DECL(mga, DV_TTY, NULL);
168 #else
169 CFATTACH_DECL(mga, sizeof(drm_device_t), drm_probe, drm_attach, drm_detach,
170 drm_activate);
171 #endif
172 #endif
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