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1da177e4 LT |
1 | /* 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 | ||
1da177e4 LT |
32 | #include "drmP.h" |
33 | #include "drm.h" | |
34 | #include "mga_drm.h" | |
35 | #include "mga_drv.h" | |
36 | ||
1da177e4 LT |
37 | #include "drm_pciids.h" |
38 | ||
f2b2cb79 | 39 | static int mga_driver_device_is_agp(struct drm_device *dev); |
1da177e4 LT |
40 | |
41 | static struct pci_device_id pciidlist[] = { | |
42 | mga_PCI_IDS | |
43 | }; | |
44 | ||
1da177e4 | 45 | static struct drm_driver driver = { |
b5e89ed5 | 46 | .driver_features = |
7ccf800e | 47 | DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_PCI_DMA | |
0a3e67a4 | 48 | DRIVER_HAVE_DMA | DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED, |
958de71b | 49 | .dev_priv_size = sizeof(drm_mga_buf_priv_t), |
22eae947 DA |
50 | .load = mga_driver_load, |
51 | .unload = mga_driver_unload, | |
52 | .lastclose = mga_driver_lastclose, | |
1da177e4 | 53 | .dma_quiescent = mga_driver_dma_quiescent, |
cda17380 | 54 | .device_is_agp = mga_driver_device_is_agp, |
0a3e67a4 JB |
55 | .get_vblank_counter = mga_get_vblank_counter, |
56 | .enable_vblank = mga_enable_vblank, | |
57 | .disable_vblank = mga_disable_vblank, | |
1da177e4 LT |
58 | .irq_preinstall = mga_driver_irq_preinstall, |
59 | .irq_postinstall = mga_driver_irq_postinstall, | |
60 | .irq_uninstall = mga_driver_irq_uninstall, | |
61 | .irq_handler = mga_driver_irq_handler, | |
62 | .reclaim_buffers = drm_core_reclaim_buffers, | |
1da177e4 LT |
63 | .ioctls = mga_ioctls, |
64 | .dma_ioctl = mga_dma_buffers, | |
65 | .fops = { | |
0a3e67a4 JB |
66 | .owner = THIS_MODULE, |
67 | .open = drm_open, | |
68 | .release = drm_release, | |
ed8b6704 | 69 | .unlocked_ioctl = drm_ioctl, |
0a3e67a4 JB |
70 | .mmap = drm_mmap, |
71 | .poll = drm_poll, | |
72 | .fasync = drm_fasync, | |
8ca7c1df | 73 | #ifdef CONFIG_COMPAT |
0a3e67a4 | 74 | .compat_ioctl = mga_compat_ioctl, |
8ca7c1df | 75 | #endif |
dc880abe | 76 | .llseek = noop_llseek, |
0a3e67a4 | 77 | }, |
22eae947 DA |
78 | |
79 | .name = DRIVER_NAME, | |
80 | .desc = DRIVER_DESC, | |
81 | .date = DRIVER_DATE, | |
82 | .major = DRIVER_MAJOR, | |
83 | .minor = DRIVER_MINOR, | |
84 | .patchlevel = DRIVER_PATCHLEVEL, | |
1da177e4 LT |
85 | }; |
86 | ||
8410ea3b DA |
87 | static struct pci_driver mga_pci_driver = { |
88 | .name = DRIVER_NAME, | |
89 | .id_table = pciidlist, | |
90 | }; | |
91 | ||
1da177e4 LT |
92 | static int __init mga_init(void) |
93 | { | |
94 | driver.num_ioctls = mga_max_ioctl; | |
8410ea3b | 95 | return drm_pci_init(&driver, &mga_pci_driver); |
1da177e4 LT |
96 | } |
97 | ||
98 | static void __exit mga_exit(void) | |
99 | { | |
8410ea3b | 100 | drm_pci_exit(&driver, &mga_pci_driver); |
1da177e4 LT |
101 | } |
102 | ||
103 | module_init(mga_init); | |
104 | module_exit(mga_exit); | |
105 | ||
b5e89ed5 DA |
106 | MODULE_AUTHOR(DRIVER_AUTHOR); |
107 | MODULE_DESCRIPTION(DRIVER_DESC); | |
1da177e4 | 108 | MODULE_LICENSE("GPL and additional rights"); |
cda17380 DA |
109 | |
110 | /** | |
111 | * Determine if the device really is AGP or not. | |
112 | * | |
113 | * In addition to the usual tests performed by \c drm_device_is_agp, this | |
114 | * function detects PCI G450 cards that appear to the system exactly like | |
115 | * AGP G450 cards. | |
116 | * | |
117 | * \param dev The device to be tested. | |
118 | * | |
119 | * \returns | |
120 | * If the device is a PCI G450, zero is returned. Otherwise 2 is returned. | |
121 | */ | |
f2b2cb79 | 122 | static int mga_driver_device_is_agp(struct drm_device *dev) |
cda17380 | 123 | { |
b5e89ed5 | 124 | const struct pci_dev *const pdev = dev->pdev; |
cda17380 DA |
125 | |
126 | /* There are PCI versions of the G450. These cards have the | |
127 | * same PCI ID as the AGP G450, but have an additional PCI-to-PCI | |
128 | * bridge chip. We detect these cards, which are not currently | |
129 | * supported by this driver, by looking at the device ID of the | |
130 | * bus the "card" is on. If vendor is 0x3388 (Hint Corp) and the | |
131 | * device is 0x0021 (HB6 Universal PCI-PCI bridge), we reject the | |
132 | * device. | |
133 | */ | |
b5e89ed5 | 134 | |
bd07ed2b | 135 | if ((pdev->device == 0x0525) && pdev->bus->self |
b5e89ed5 DA |
136 | && (pdev->bus->self->vendor == 0x3388) |
137 | && (pdev->bus->self->device == 0x0021)) { | |
cda17380 DA |
138 | return 0; |
139 | } | |
140 | ||
141 | return 2; | |
142 | } |