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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/* mga_drv.c -- Matrox G200/G400 driver -*- linux-c -*-
2 * Created: Mon Dec 13 01:56:22 1999 by jhartmann@precisioninsight.com
3 *
4 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
5 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
6 * All Rights Reserved.
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the "Software"),
10 * to deal in the Software without restriction, including without limitation
11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12 * and/or sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following conditions:
14 *
15 * The above copyright notice and this permission notice (including the next
16 * paragraph) shall be included in all copies or substantial portions of the
17 * Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
22 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
23 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
24 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
25 * OTHER DEALINGS IN THE SOFTWARE.
26 *
27 * Authors:
28 * Rickard E. (Rik) Faith <faith@valinux.com>
29 * Gareth Hughes <gareth@valinux.com>
30 */
31
32#include <linux/config.h>
33#include "drmP.h"
34#include "drm.h"
35#include "mga_drm.h"
36#include "mga_drv.h"
37
38
39#include "drm_pciids.h"
40
Dave Airliecda17382005-07-10 17:31:26 +100041static int mga_driver_device_is_agp(drm_device_t * dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -070042static int postinit( struct drm_device *dev, unsigned long flags )
43{
Dave Airlied01cff42005-07-10 19:24:35 +100044 drm_mga_private_t * const dev_priv =
45 (drm_mga_private_t *) dev->dev_private;
46
47 dev_priv->mmio_base = pci_resource_start(dev->pdev, 1);
48 dev_priv->mmio_size = pci_resource_len(dev->pdev, 1);
49
Linus Torvalds1da177e2005-04-16 15:20:36 -070050 dev->counters += 3;
51 dev->types[6] = _DRM_STAT_IRQ;
52 dev->types[7] = _DRM_STAT_PRIMARY;
53 dev->types[8] = _DRM_STAT_SECONDARY;
54
55 DRM_INFO( "Initialized %s %d.%d.%d %s on minor %d: %s\n",
56 DRIVER_NAME,
57 DRIVER_MAJOR,
58 DRIVER_MINOR,
59 DRIVER_PATCHLEVEL,
60 DRIVER_DATE,
61 dev->primary.minor,
62 pci_pretty_name(dev->pdev)
63 );
64 return 0;
65}
66
67static int version( drm_version_t *version )
68{
69 int len;
70
71 version->version_major = DRIVER_MAJOR;
72 version->version_minor = DRIVER_MINOR;
73 version->version_patchlevel = DRIVER_PATCHLEVEL;
74 DRM_COPY( version->name, DRIVER_NAME );
75 DRM_COPY( version->date, DRIVER_DATE );
76 DRM_COPY( version->desc, DRIVER_DESC );
77 return 0;
78}
79
80static struct pci_device_id pciidlist[] = {
81 mga_PCI_IDS
82};
83
84extern drm_ioctl_desc_t mga_ioctls[];
85extern int mga_max_ioctl;
86
87static struct drm_driver driver = {
88 .driver_features = DRIVER_USE_AGP | DRIVER_REQUIRE_AGP | DRIVER_USE_MTRR | DRIVER_HAVE_DMA | DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | DRIVER_IRQ_VBL,
Dave Airlied01cff42005-07-10 19:24:35 +100089 .preinit = mga_driver_preinit,
90 .postcleanup = mga_driver_postcleanup,
Linus Torvalds1da177e2005-04-16 15:20:36 -070091 .pretakedown = mga_driver_pretakedown,
92 .dma_quiescent = mga_driver_dma_quiescent,
Dave Airliecda17382005-07-10 17:31:26 +100093 .device_is_agp = mga_driver_device_is_agp,
Linus Torvalds1da177e2005-04-16 15:20:36 -070094 .vblank_wait = mga_driver_vblank_wait,
95 .irq_preinstall = mga_driver_irq_preinstall,
96 .irq_postinstall = mga_driver_irq_postinstall,
97 .irq_uninstall = mga_driver_irq_uninstall,
98 .irq_handler = mga_driver_irq_handler,
99 .reclaim_buffers = drm_core_reclaim_buffers,
100 .get_map_ofs = drm_core_get_map_ofs,
101 .get_reg_ofs = drm_core_get_reg_ofs,
102 .postinit = postinit,
103 .version = version,
104 .ioctls = mga_ioctls,
105 .dma_ioctl = mga_dma_buffers,
106 .fops = {
107 .owner = THIS_MODULE,
108 .open = drm_open,
109 .release = drm_release,
110 .ioctl = drm_ioctl,
111 .mmap = drm_mmap,
112 .poll = drm_poll,
113 .fasync = drm_fasync,
Dave Airlie8ca7c1d2005-07-07 21:51:26 +1000114#ifdef CONFIG_COMPAT
115 .compat_ioctl = mga_compat_ioctl,
116#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700117 },
118 .pci_driver = {
119 .name = DRIVER_NAME,
120 .id_table = pciidlist,
121 }
122};
123
124static int __init mga_init(void)
125{
126 driver.num_ioctls = mga_max_ioctl;
127 return drm_init(&driver);
128}
129
130static void __exit mga_exit(void)
131{
132 drm_exit(&driver);
133}
134
135module_init(mga_init);
136module_exit(mga_exit);
137
138MODULE_AUTHOR( DRIVER_AUTHOR );
139MODULE_DESCRIPTION( DRIVER_DESC );
140MODULE_LICENSE("GPL and additional rights");
Dave Airliecda17382005-07-10 17:31:26 +1000141
142/**
143 * Determine if the device really is AGP or not.
144 *
145 * In addition to the usual tests performed by \c drm_device_is_agp, this
146 * function detects PCI G450 cards that appear to the system exactly like
147 * AGP G450 cards.
148 *
149 * \param dev The device to be tested.
150 *
151 * \returns
152 * If the device is a PCI G450, zero is returned. Otherwise 2 is returned.
153 */
154int mga_driver_device_is_agp(drm_device_t * dev)
155{
156 const struct pci_dev * const pdev = dev->pdev;
157
158
159 /* There are PCI versions of the G450. These cards have the
160 * same PCI ID as the AGP G450, but have an additional PCI-to-PCI
161 * bridge chip. We detect these cards, which are not currently
162 * supported by this driver, by looking at the device ID of the
163 * bus the "card" is on. If vendor is 0x3388 (Hint Corp) and the
164 * device is 0x0021 (HB6 Universal PCI-PCI bridge), we reject the
165 * device.
166 */
167
168 if ( (pdev->device == 0x0525)
169 && (pdev->bus->self->vendor == 0x3388)
170 && (pdev->bus->self->device == 0x0021) ) {
171 return 0;
172 }
173
174 return 2;
175}