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>
38 #include "drm_pciids.h"
40 static int mga_driver_device_is_agp(drm_device_t * dev);
41 static int postinit(struct drm_device *dev, unsigned long flags)
43 drm_mga_private_t *const dev_priv =
44 (drm_mga_private_t *) dev->dev_private;
46 dev_priv->mmio_base = pci_resource_start(dev->pdev, 1);
47 dev_priv->mmio_size = pci_resource_len(dev->pdev, 1);
50 dev->types[6] = _DRM_STAT_IRQ;
51 dev->types[7] = _DRM_STAT_PRIMARY;
52 dev->types[8] = _DRM_STAT_SECONDARY;
54 DRM_INFO("Initialized %s %d.%d.%d %s on minor %d: %s\n",
59 DRIVER_DATE, dev->primary.minor, pci_pretty_name(dev->pdev)
64 static int version(drm_version_t * version)
68 version->version_major = DRIVER_MAJOR;
69 version->version_minor = DRIVER_MINOR;
70 version->version_patchlevel = DRIVER_PATCHLEVEL;
71 DRM_COPY(version->name, DRIVER_NAME);
72 DRM_COPY(version->date, DRIVER_DATE);
73 DRM_COPY(version->desc, DRIVER_DESC);
77 static struct pci_device_id pciidlist[] = {
81 static struct drm_driver driver = {
83 DRIVER_USE_AGP | DRIVER_REQUIRE_AGP | DRIVER_USE_MTRR |
84 DRIVER_HAVE_DMA | DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED |
86 .preinit = mga_driver_preinit,
87 .postcleanup = mga_driver_postcleanup,
88 .pretakedown = mga_driver_pretakedown,
89 .dma_quiescent = mga_driver_dma_quiescent,
90 .device_is_agp = mga_driver_device_is_agp,
91 .vblank_wait = mga_driver_vblank_wait,
92 .irq_preinstall = mga_driver_irq_preinstall,
93 .irq_postinstall = mga_driver_irq_postinstall,
94 .irq_uninstall = mga_driver_irq_uninstall,
95 .irq_handler = mga_driver_irq_handler,
96 .reclaim_buffers = drm_core_reclaim_buffers,
97 .get_map_ofs = drm_core_get_map_ofs,
98 .get_reg_ofs = drm_core_get_reg_ofs,
101 .ioctls = mga_ioctls,
102 .dma_ioctl = mga_dma_buffers,
104 .owner = THIS_MODULE,
106 .release = drm_release,
110 .fasync = drm_fasync,
112 .compat_ioctl = mga_compat_ioctl,
117 .id_table = pciidlist,
121 static int __init mga_init(void)
123 driver.num_ioctls = mga_max_ioctl;
124 return drm_init(&driver);
127 static void __exit mga_exit(void)
132 module_init(mga_init);
133 module_exit(mga_exit);
135 MODULE_AUTHOR(DRIVER_AUTHOR);
136 MODULE_DESCRIPTION(DRIVER_DESC);
137 MODULE_LICENSE("GPL and additional rights");
140 * Determine if the device really is AGP or not.
142 * In addition to the usual tests performed by \c drm_device_is_agp, this
143 * function detects PCI G450 cards that appear to the system exactly like
146 * \param dev The device to be tested.
149 * If the device is a PCI G450, zero is returned. Otherwise 2 is returned.
151 static int mga_driver_device_is_agp(drm_device_t * dev)
153 const struct pci_dev *const pdev = dev->pdev;
155 /* There are PCI versions of the G450. These cards have the
156 * same PCI ID as the AGP G450, but have an additional PCI-to-PCI
157 * bridge chip. We detect these cards, which are not currently
158 * supported by this driver, by looking at the device ID of the
159 * bus the "card" is on. If vendor is 0x3388 (Hint Corp) and the
160 * device is 0x0021 (HB6 Universal PCI-PCI bridge), we reject the
164 if ((pdev->device == 0x0525)
165 && (pdev->bus->self->vendor == 0x3388)
166 && (pdev->bus->self->device == 0x0021)) {