1 /* mga_drv.c -- Matrox G200/G400 driver -*- linux-c -*-
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.
32 #include <linux/module.h>
35 #include <drm/mga_drm.h>
38 #include <drm/drm_pciids.h>
40 static int mga_driver_device_is_agp(struct drm_device *dev);
42 static struct pci_device_id pciidlist[] = {
46 static const struct file_operations mga_driver_fops = {
49 .release = drm_release,
50 .unlocked_ioctl = drm_ioctl,
51 .mmap = drm_legacy_mmap,
54 .compat_ioctl = mga_compat_ioctl,
56 .llseek = noop_llseek,
59 static struct drm_driver driver = {
61 DRIVER_USE_AGP | DRIVER_PCI_DMA |
62 DRIVER_HAVE_DMA | DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED,
63 .dev_priv_size = sizeof(drm_mga_buf_priv_t),
64 .load = mga_driver_load,
65 .unload = mga_driver_unload,
66 .lastclose = mga_driver_lastclose,
67 .set_busid = drm_pci_set_busid,
68 .dma_quiescent = mga_driver_dma_quiescent,
69 .device_is_agp = mga_driver_device_is_agp,
70 .get_vblank_counter = mga_get_vblank_counter,
71 .enable_vblank = mga_enable_vblank,
72 .disable_vblank = mga_disable_vblank,
73 .irq_preinstall = mga_driver_irq_preinstall,
74 .irq_postinstall = mga_driver_irq_postinstall,
75 .irq_uninstall = mga_driver_irq_uninstall,
76 .irq_handler = mga_driver_irq_handler,
78 .dma_ioctl = mga_dma_buffers,
79 .fops = &mga_driver_fops,
83 .major = DRIVER_MAJOR,
84 .minor = DRIVER_MINOR,
85 .patchlevel = DRIVER_PATCHLEVEL,
88 static struct pci_driver mga_pci_driver = {
90 .id_table = pciidlist,
93 static int __init mga_init(void)
95 driver.num_ioctls = mga_max_ioctl;
96 return drm_pci_init(&driver, &mga_pci_driver);
99 static void __exit mga_exit(void)
101 drm_pci_exit(&driver, &mga_pci_driver);
104 module_init(mga_init);
105 module_exit(mga_exit);
107 MODULE_AUTHOR(DRIVER_AUTHOR);
108 MODULE_DESCRIPTION(DRIVER_DESC);
109 MODULE_LICENSE("GPL and additional rights");
112 * Determine if the device really is AGP or not.
114 * In addition to the usual tests performed by \c drm_device_is_agp, this
115 * function detects PCI G450 cards that appear to the system exactly like
118 * \param dev The device to be tested.
121 * If the device is a PCI G450, zero is returned. Otherwise 2 is returned.
123 static int mga_driver_device_is_agp(struct drm_device *dev)
125 const struct pci_dev *const pdev = dev->pdev;
127 /* There are PCI versions of the G450. These cards have the
128 * same PCI ID as the AGP G450, but have an additional PCI-to-PCI
129 * bridge chip. We detect these cards, which are not currently
130 * supported by this driver, by looking at the device ID of the
131 * bus the "card" is on. If vendor is 0x3388 (Hint Corp) and the
132 * device is 0x0021 (HB6 Universal PCI-PCI bridge), we reject the
136 if ((pdev->device == 0x0525) && pdev->bus->self
137 && (pdev->bus->self->vendor == 0x3388)
138 && (pdev->bus->self->device == 0x0021)) {