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>
37 #include "drm_pciids.h"
39 static int mga_driver_device_is_agp(drm_device_t * dev);
41 static struct pci_device_id pciidlist[] = {
45 static struct drm_driver driver = {
47 DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_PCI_DMA |
48 DRIVER_HAVE_DMA | DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED |
50 .dev_priv_size = sizeof(drm_mga_buf_priv_t),
51 .load = mga_driver_load,
52 .unload = mga_driver_unload,
53 .lastclose = mga_driver_lastclose,
54 .dma_quiescent = mga_driver_dma_quiescent,
55 .device_is_agp = mga_driver_device_is_agp,
56 .vblank_wait = mga_driver_vblank_wait,
57 .irq_preinstall = mga_driver_irq_preinstall,
58 .irq_postinstall = mga_driver_irq_postinstall,
59 .irq_uninstall = mga_driver_irq_uninstall,
60 .irq_handler = mga_driver_irq_handler,
61 .reclaim_buffers = drm_core_reclaim_buffers,
62 .get_map_ofs = drm_core_get_map_ofs,
63 .get_reg_ofs = drm_core_get_reg_ofs,
65 .dma_ioctl = mga_dma_buffers,
69 .release = drm_release,
75 .compat_ioctl = mga_compat_ioctl,
80 .id_table = pciidlist,
86 .major = DRIVER_MAJOR,
87 .minor = DRIVER_MINOR,
88 .patchlevel = DRIVER_PATCHLEVEL,
91 static int __init mga_init(void)
93 driver.num_ioctls = mga_max_ioctl;
94 return drm_init(&driver);
97 static void __exit mga_exit(void)
102 module_init(mga_init);
103 module_exit(mga_exit);
105 MODULE_AUTHOR(DRIVER_AUTHOR);
106 MODULE_DESCRIPTION(DRIVER_DESC);
107 MODULE_LICENSE("GPL and additional rights");
110 * Determine if the device really is AGP or not.
112 * In addition to the usual tests performed by \c drm_device_is_agp, this
113 * function detects PCI G450 cards that appear to the system exactly like
116 * \param dev The device to be tested.
119 * If the device is a PCI G450, zero is returned. Otherwise 2 is returned.
121 static int mga_driver_device_is_agp(drm_device_t * dev)
123 const struct pci_dev *const pdev = dev->pdev;
125 /* There are PCI versions of the G450. These cards have the
126 * same PCI ID as the AGP G450, but have an additional PCI-to-PCI
127 * bridge chip. We detect these cards, which are not currently
128 * supported by this driver, by looking at the device ID of the
129 * bus the "card" is on. If vendor is 0x3388 (Hint Corp) and the
130 * device is 0x0021 (HB6 Universal PCI-PCI bridge), we reject the
134 if ((pdev->device == 0x0525) && pdev->bus->self
135 && (pdev->bus->self->vendor == 0x3388)
136 && (pdev->bus->self->device == 0x0021)) {