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: head/sys/dev/drm/mga_drv.c 183605 2008-10-04 14:51:14Z rnoland $");
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. */
44static 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 */
65static int mga_driver_device_is_agp(struct drm_device * 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
90static void mga_configure(struct drm_device *dev)
91{
92 dev->driver->driver_features =
93 DRIVER_USE_AGP | DRIVER_REQUIRE_AGP | DRIVER_USE_MTRR |
94 DRIVER_HAVE_DMA | DRIVER_HAVE_IRQ;
95
96 dev->driver->buf_priv_size = sizeof(drm_mga_buf_priv_t);
97 dev->driver->load = mga_driver_load;
98 dev->driver->unload = mga_driver_unload;
99 dev->driver->lastclose = mga_driver_lastclose;
100 dev->driver->get_vblank_counter = mga_get_vblank_counter;
101 dev->driver->enable_vblank = mga_enable_vblank;
102 dev->driver->disable_vblank = mga_disable_vblank;
103 dev->driver->irq_preinstall = mga_driver_irq_preinstall;
104 dev->driver->irq_postinstall = mga_driver_irq_postinstall;
105 dev->driver->irq_uninstall = mga_driver_irq_uninstall;
106 dev->driver->irq_handler = mga_driver_irq_handler;
107 dev->driver->dma_ioctl = mga_dma_buffers;
108 dev->driver->dma_quiescent = mga_driver_dma_quiescent;
109 dev->driver->device_is_agp = mga_driver_device_is_agp;
110
111 dev->driver->ioctls = mga_ioctls;
112 dev->driver->max_ioctl = mga_max_ioctl;
113
114 dev->driver->name = DRIVER_NAME;
115 dev->driver->desc = DRIVER_DESC;
116 dev->driver->date = DRIVER_DATE;
117 dev->driver->major = DRIVER_MAJOR;
118 dev->driver->minor = DRIVER_MINOR;
119 dev->driver->patchlevel = DRIVER_PATCHLEVEL;
120}
121
122static int
123mga_probe(device_t dev)
124{
125 return drm_probe(dev, mga_pciidlist);
126}
127
128static int
129mga_attach(device_t nbdev)
130{
131 struct drm_device *dev = device_get_softc(nbdev);
132
133 dev->driver = malloc(sizeof(struct drm_driver_info), M_DRM,
134 M_WAITOK | M_ZERO);
135
136 mga_configure(dev);
137
138 return drm_attach(nbdev, mga_pciidlist);
139}
140
141static int
142mga_detach(device_t nbdev)
143{
144 struct drm_device *dev = device_get_softc(nbdev);
145 int ret;
146
147 ret = drm_detach(nbdev);
148
149 free(dev->driver, M_DRM);
150
151 return ret;
152}
153
154static device_method_t mga_methods[] = {
155 /* Device interface */
156 DEVMETHOD(device_probe, mga_probe),
157 DEVMETHOD(device_attach, mga_attach),
158 DEVMETHOD(device_detach, mga_detach),
159
160 { 0, 0 }
161};
162
163static driver_t mga_driver = {
164 "drm",
165 mga_methods,
166 sizeof(struct drm_device)
167};
168
169extern devclass_t drm_devclass;
170#if __FreeBSD_version >= 700010
171DRIVER_MODULE(mga, vgapci, mga_driver, drm_devclass, 0, 0);
172#else
173DRIVER_MODULE(mga, pci, mga_driver, drm_devclass, 0, 0);
174#endif
175MODULE_DEPEND(mga, drm, 1, 1, 1);