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/*-
5 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
6 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
7 * All Rights Reserved.
8 *
9 * Permission is hereby granted, free of charge, to any person obtaining a
10 * copy of this software and associated documentation files (the "Software"),
11 * to deal in the Software without restriction, including without limitation
12 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
13 * and/or sell copies of the Software, and to permit persons to whom the
14 * Software is furnished to do so, subject to the following conditions:
15 *
16 * The above copyright notice and this permission notice (including the next
17 * paragraph) shall be included in all copies or substantial portions of the
18 * Software.
19 *
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
21 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
23 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
24 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
25 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
26 * OTHER DEALINGS IN THE SOFTWARE.
27 *
28 * Authors:
29 *    Rickard E. (Rik) Faith <faith@valinux.com>
30 *    Gareth Hughes <gareth@valinux.com>
31 *
32 */
33
34#include <sys/cdefs.h>
35__FBSDID("$FreeBSD$");
36
37#include "dev/drm/drmP.h"
38#include "dev/drm/drm.h"
39#include "dev/drm/mga_drm.h"
40#include "dev/drm/mga_drv.h"
41#include "dev/drm/drm_pciids.h"
42
43/* drv_PCI_IDs comes from drm_pciids.h, generated from drm_pciids.txt. */
44static drm_pci_id_list_t mga_pciidlist[] = {
45	mga_PCI_IDS
46};
47
48/**
49 * Determine if the device really is AGP or not.
50 *
51 * In addition to the usual tests performed by \c drm_device_is_agp, this
52 * function detects PCI G450 cards that appear to the system exactly like
53 * AGP G450 cards.
54 *
55 * \param dev   The device to be tested.
56 *
57 * \returns
58 * If the device is a PCI G450, zero is returned.  Otherwise non-zero is
59 * returned.
60 *
61 * \bug
62 * This function needs to be filled in!  The implementation in
63 * linux-core/mga_drv.c shows what needs to be done.
64 */
65static int mga_driver_device_is_agp(struct drm_device * dev)
66{
67	device_t bus;
68
69	/* There are PCI versions of the G450.  These cards have the
70	 * same PCI ID as the AGP G450, but have an additional PCI-to-PCI
71	 * bridge chip.  We detect these cards, which are not currently
72	 * supported by this driver, by looking at the device ID of the
73	 * bus the "card" is on.  If vendor is 0x3388 (Hint Corp) and the
74	 * device is 0x0021 (HB6 Universal PCI-PCI bridge), we reject the
75	 * device.
76	 */
77	bus = device_get_parent(device_get_parent(dev->device));
78	if (pci_get_device(dev->device) == 0x0525 &&
79	    pci_get_vendor(bus) == 0x3388 &&
80	    pci_get_device(bus) == 0x0021)
81		return DRM_IS_NOT_AGP;
82	else
83		return DRM_MIGHT_BE_AGP;
84}
85
86static void mga_configure(struct drm_device *dev)
87{
88	dev->driver->driver_features =
89	    DRIVER_USE_AGP | DRIVER_REQUIRE_AGP | DRIVER_USE_MTRR |
90	    DRIVER_HAVE_DMA | DRIVER_HAVE_IRQ;
91
92	dev->driver->buf_priv_size	= sizeof(drm_mga_buf_priv_t);
93	dev->driver->load		= mga_driver_load;
94	dev->driver->unload		= mga_driver_unload;
95	dev->driver->lastclose		= mga_driver_lastclose;
96	dev->driver->get_vblank_counter	= mga_get_vblank_counter;
97	dev->driver->enable_vblank	= mga_enable_vblank;
98	dev->driver->disable_vblank	= mga_disable_vblank;
99	dev->driver->irq_preinstall	= mga_driver_irq_preinstall;
100	dev->driver->irq_postinstall	= mga_driver_irq_postinstall;
101	dev->driver->irq_uninstall	= mga_driver_irq_uninstall;
102	dev->driver->irq_handler	= mga_driver_irq_handler;
103	dev->driver->dma_ioctl		= mga_dma_buffers;
104	dev->driver->dma_quiescent	= mga_driver_dma_quiescent;
105	dev->driver->device_is_agp	= mga_driver_device_is_agp;
106
107	dev->driver->ioctls		= mga_ioctls;
108	dev->driver->max_ioctl		= mga_max_ioctl;
109
110	dev->driver->name		= DRIVER_NAME;
111	dev->driver->desc		= DRIVER_DESC;
112	dev->driver->date		= DRIVER_DATE;
113	dev->driver->major		= DRIVER_MAJOR;
114	dev->driver->minor		= DRIVER_MINOR;
115	dev->driver->patchlevel		= DRIVER_PATCHLEVEL;
116}
117
118static int
119mga_probe(device_t kdev)
120{
121	return drm_probe(kdev, mga_pciidlist);
122}
123
124static int
125mga_attach(device_t kdev)
126{
127	struct drm_device *dev = device_get_softc(kdev);
128
129	dev->driver = malloc(sizeof(struct drm_driver_info), DRM_MEM_DRIVER,
130	    M_WAITOK | M_ZERO);
131
132	mga_configure(dev);
133
134	return drm_attach(kdev, mga_pciidlist);
135}
136
137static int
138mga_detach(device_t kdev)
139{
140	struct drm_device *dev = device_get_softc(kdev);
141	int ret;
142
143	ret = drm_detach(kdev);
144
145	free(dev->driver, DRM_MEM_DRIVER);
146
147	return ret;
148}
149
150static device_method_t mga_methods[] = {
151	/* Device interface */
152	DEVMETHOD(device_probe,		mga_probe),
153	DEVMETHOD(device_attach,	mga_attach),
154	DEVMETHOD(device_detach,	mga_detach),
155
156	{ 0, 0 }
157};
158
159static driver_t mga_driver = {
160	"drm",
161	mga_methods,
162	sizeof(struct drm_device)
163};
164
165extern devclass_t drm_devclass;
166DRIVER_MODULE(mga, vgapci, mga_driver, drm_devclass, 0, 0);
167MODULE_DEPEND(mga, drm, 1, 1, 1);
168