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