168 lines
5.1 KiB
C
168 lines
5.1 KiB
C
/* mga_drv.c -- Matrox G200/G400 driver -*- linux-c -*-
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* Created: Mon Dec 13 01:56:22 1999 by jhartmann@precisioninsight.com
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*/
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/*-
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* Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
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* Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors:
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* Rickard E. (Rik) Faith <faith@valinux.com>
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* Gareth Hughes <gareth@valinux.com>
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*
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "dev/drm/drmP.h"
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#include "dev/drm/drm.h"
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#include "dev/drm/mga_drm.h"
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#include "dev/drm/mga_drv.h"
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#include "dev/drm/drm_pciids.h"
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/* drv_PCI_IDs comes from drm_pciids.h, generated from drm_pciids.txt. */
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static drm_pci_id_list_t mga_pciidlist[] = {
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mga_PCI_IDS
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};
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/**
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* Determine if the device really is AGP or not.
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*
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* In addition to the usual tests performed by \c drm_device_is_agp, this
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* function detects PCI G450 cards that appear to the system exactly like
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* AGP G450 cards.
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*
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* \param dev The device to be tested.
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*
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* \returns
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* If the device is a PCI G450, zero is returned. Otherwise non-zero is
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* returned.
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*
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* \bug
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* This function needs to be filled in! The implementation in
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* linux-core/mga_drv.c shows what needs to be done.
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*/
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static int mga_driver_device_is_agp(struct drm_device * dev)
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{
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device_t bus;
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/* There are PCI versions of the G450. These cards have the
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* same PCI ID as the AGP G450, but have an additional PCI-to-PCI
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* bridge chip. We detect these cards, which are not currently
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* supported by this driver, by looking at the device ID of the
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* bus the "card" is on. If vendor is 0x3388 (Hint Corp) and the
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* device is 0x0021 (HB6 Universal PCI-PCI bridge), we reject the
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* device.
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*/
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bus = device_get_parent(device_get_parent(dev->device));
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if (pci_get_device(dev->device) == 0x0525 &&
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pci_get_vendor(bus) == 0x3388 &&
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pci_get_device(bus) == 0x0021)
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return DRM_IS_NOT_AGP;
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else
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return DRM_MIGHT_BE_AGP;
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}
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static void mga_configure(struct drm_device *dev)
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{
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dev->driver->driver_features =
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DRIVER_USE_AGP | DRIVER_REQUIRE_AGP | DRIVER_USE_MTRR |
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DRIVER_HAVE_DMA | DRIVER_HAVE_IRQ;
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dev->driver->buf_priv_size = sizeof(drm_mga_buf_priv_t);
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dev->driver->load = mga_driver_load;
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dev->driver->unload = mga_driver_unload;
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dev->driver->lastclose = mga_driver_lastclose;
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dev->driver->get_vblank_counter = mga_get_vblank_counter;
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dev->driver->enable_vblank = mga_enable_vblank;
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dev->driver->disable_vblank = mga_disable_vblank;
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dev->driver->irq_preinstall = mga_driver_irq_preinstall;
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dev->driver->irq_postinstall = mga_driver_irq_postinstall;
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dev->driver->irq_uninstall = mga_driver_irq_uninstall;
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dev->driver->irq_handler = mga_driver_irq_handler;
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dev->driver->dma_ioctl = mga_dma_buffers;
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dev->driver->dma_quiescent = mga_driver_dma_quiescent;
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dev->driver->device_is_agp = mga_driver_device_is_agp;
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dev->driver->ioctls = mga_ioctls;
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dev->driver->max_ioctl = mga_max_ioctl;
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dev->driver->name = DRIVER_NAME;
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dev->driver->desc = DRIVER_DESC;
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dev->driver->date = DRIVER_DATE;
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dev->driver->major = DRIVER_MAJOR;
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dev->driver->minor = DRIVER_MINOR;
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dev->driver->patchlevel = DRIVER_PATCHLEVEL;
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}
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static int
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mga_probe(device_t kdev)
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{
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return drm_probe(kdev, mga_pciidlist);
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}
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static int
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mga_attach(device_t kdev)
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{
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struct drm_device *dev = device_get_softc(kdev);
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dev->driver = malloc(sizeof(struct drm_driver_info), DRM_MEM_DRIVER,
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M_WAITOK | M_ZERO);
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mga_configure(dev);
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return drm_attach(kdev, mga_pciidlist);
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}
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static int
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mga_detach(device_t kdev)
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{
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struct drm_device *dev = device_get_softc(kdev);
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int ret;
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ret = drm_detach(kdev);
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free(dev->driver, DRM_MEM_DRIVER);
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return ret;
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}
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static device_method_t mga_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, mga_probe),
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DEVMETHOD(device_attach, mga_attach),
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DEVMETHOD(device_detach, mga_detach),
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{ 0, 0 }
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};
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static driver_t mga_driver = {
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"drm",
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mga_methods,
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sizeof(struct drm_device)
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};
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extern devclass_t drm_devclass;
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DRIVER_MODULE(mga, vgapci, mga_driver, drm_devclass, 0, 0);
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MODULE_DEPEND(mga, drm, 1, 1, 1);
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