1 /* mga_drv.c -- Matrox G200/G400 driver -*- linux-c -*-
2 * Created: Mon Dec 13 01:56:22 1999 by jhartmann@precisioninsight.com
4 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
5 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
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:
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
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.
28 * Rickard E. (Rik) Faith <faith@valinux.com>
29 * Gareth Hughes <gareth@valinux.com>
32 #include <linux/config.h>
39 #include "drm_pciids.h"
41 static int mga_driver_device_is_agp(drm_device_t * dev);
42 static int postinit( struct drm_device *dev, unsigned long flags )
44 drm_mga_private_t * const dev_priv =
45 (drm_mga_private_t *) dev->dev_private;
47 dev_priv->mmio_base = pci_resource_start(dev->pdev, 1);
48 dev_priv->mmio_size = pci_resource_len(dev->pdev, 1);
51 dev->types[6] = _DRM_STAT_IRQ;
52 dev->types[7] = _DRM_STAT_PRIMARY;
53 dev->types[8] = _DRM_STAT_SECONDARY;
55 DRM_INFO( "Initialized %s %d.%d.%d %s on minor %d: %s\n",
62 pci_pretty_name(dev->pdev)
67 static int version( drm_version_t *version )
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 );
80 static struct pci_device_id pciidlist[] = {
84 extern drm_ioctl_desc_t mga_ioctls[];
85 extern int mga_max_ioctl;
87 static 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,
89 .preinit = mga_driver_preinit,
90 .postcleanup = mga_driver_postcleanup,
91 .pretakedown = mga_driver_pretakedown,
92 .dma_quiescent = mga_driver_dma_quiescent,
93 .device_is_agp = mga_driver_device_is_agp,
94 .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,
104 .ioctls = mga_ioctls,
105 .dma_ioctl = mga_dma_buffers,
107 .owner = THIS_MODULE,
109 .release = drm_release,
113 .fasync = drm_fasync,
115 .compat_ioctl = mga_compat_ioctl,
120 .id_table = pciidlist,
124 static int __init mga_init(void)
126 driver.num_ioctls = mga_max_ioctl;
127 return drm_init(&driver);
130 static void __exit mga_exit(void)
135 module_init(mga_init);
136 module_exit(mga_exit);
138 MODULE_AUTHOR( DRIVER_AUTHOR );
139 MODULE_DESCRIPTION( DRIVER_DESC );
140 MODULE_LICENSE("GPL and additional rights");
143 * Determine if the device really is AGP or not.
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
149 * \param dev The device to be tested.
152 * If the device is a PCI G450, zero is returned. Otherwise 2 is returned.
154 int mga_driver_device_is_agp(drm_device_t * dev)
156 const struct pci_dev * const pdev = dev->pdev;
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
168 if ( (pdev->device == 0x0525)
169 && (pdev->bus->self->vendor == 0x3388)
170 && (pdev->bus->self->device == 0x0021) ) {