mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-26 10:49:33 +00:00
141 lines
4.3 KiB
C
141 lines
4.3 KiB
C
/* mga_drv.c -- Matrox G200/G400 driver -*- linux-c -*-
|
|
* Created: Mon Dec 13 01:56:22 1999 by jhartmann@precisioninsight.com
|
|
*
|
|
* Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
|
|
* Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
|
|
* All Rights Reserved.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
* copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice (including the next
|
|
* paragraph) shall be included in all copies or substantial portions of the
|
|
* Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
|
|
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
|
|
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
|
* OTHER DEALINGS IN THE SOFTWARE.
|
|
*
|
|
* Authors:
|
|
* Rickard E. (Rik) Faith <faith@valinux.com>
|
|
* Gareth Hughes <gareth@valinux.com>
|
|
*/
|
|
|
|
#include "drmP.h"
|
|
#include "drm.h"
|
|
#include "mga_drm.h"
|
|
#include "mga_drv.h"
|
|
|
|
#include "drm_pciids.h"
|
|
|
|
static int mga_driver_device_is_agp(struct drm_device * dev);
|
|
|
|
static struct pci_device_id pciidlist[] = {
|
|
mga_PCI_IDS
|
|
};
|
|
|
|
static struct drm_driver driver = {
|
|
.driver_features =
|
|
DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_PCI_DMA |
|
|
DRIVER_HAVE_DMA | DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED |
|
|
DRIVER_IRQ_VBL,
|
|
.dev_priv_size = sizeof(drm_mga_buf_priv_t),
|
|
.load = mga_driver_load,
|
|
.unload = mga_driver_unload,
|
|
.lastclose = mga_driver_lastclose,
|
|
.dma_quiescent = mga_driver_dma_quiescent,
|
|
.device_is_agp = mga_driver_device_is_agp,
|
|
.vblank_wait = mga_driver_vblank_wait,
|
|
.irq_preinstall = mga_driver_irq_preinstall,
|
|
.irq_postinstall = mga_driver_irq_postinstall,
|
|
.irq_uninstall = mga_driver_irq_uninstall,
|
|
.irq_handler = mga_driver_irq_handler,
|
|
.reclaim_buffers = drm_core_reclaim_buffers,
|
|
.get_map_ofs = drm_core_get_map_ofs,
|
|
.get_reg_ofs = drm_core_get_reg_ofs,
|
|
.ioctls = mga_ioctls,
|
|
.dma_ioctl = mga_dma_buffers,
|
|
.fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = drm_open,
|
|
.release = drm_release,
|
|
.ioctl = drm_ioctl,
|
|
.mmap = drm_mmap,
|
|
.poll = drm_poll,
|
|
.fasync = drm_fasync,
|
|
#ifdef CONFIG_COMPAT
|
|
.compat_ioctl = mga_compat_ioctl,
|
|
#endif
|
|
},
|
|
.pci_driver = {
|
|
.name = DRIVER_NAME,
|
|
.id_table = pciidlist,
|
|
},
|
|
|
|
.name = DRIVER_NAME,
|
|
.desc = DRIVER_DESC,
|
|
.date = DRIVER_DATE,
|
|
.major = DRIVER_MAJOR,
|
|
.minor = DRIVER_MINOR,
|
|
.patchlevel = DRIVER_PATCHLEVEL,
|
|
};
|
|
|
|
static int __init mga_init(void)
|
|
{
|
|
driver.num_ioctls = mga_max_ioctl;
|
|
return drm_init(&driver);
|
|
}
|
|
|
|
static void __exit mga_exit(void)
|
|
{
|
|
drm_exit(&driver);
|
|
}
|
|
|
|
module_init(mga_init);
|
|
module_exit(mga_exit);
|
|
|
|
MODULE_AUTHOR(DRIVER_AUTHOR);
|
|
MODULE_DESCRIPTION(DRIVER_DESC);
|
|
MODULE_LICENSE("GPL and additional rights");
|
|
|
|
/**
|
|
* Determine if the device really is AGP or not.
|
|
*
|
|
* In addition to the usual tests performed by \c drm_device_is_agp, this
|
|
* function detects PCI G450 cards that appear to the system exactly like
|
|
* AGP G450 cards.
|
|
*
|
|
* \param dev The device to be tested.
|
|
*
|
|
* \returns
|
|
* If the device is a PCI G450, zero is returned. Otherwise 2 is returned.
|
|
*/
|
|
static int mga_driver_device_is_agp(struct drm_device * dev)
|
|
{
|
|
const struct pci_dev *const pdev = dev->pdev;
|
|
|
|
/* There are PCI versions of the G450. These cards have the
|
|
* same PCI ID as the AGP G450, but have an additional PCI-to-PCI
|
|
* bridge chip. We detect these cards, which are not currently
|
|
* supported by this driver, by looking at the device ID of the
|
|
* bus the "card" is on. If vendor is 0x3388 (Hint Corp) and the
|
|
* device is 0x0021 (HB6 Universal PCI-PCI bridge), we reject the
|
|
* device.
|
|
*/
|
|
|
|
if ((pdev->device == 0x0525) && pdev->bus->self
|
|
&& (pdev->bus->self->vendor == 0x3388)
|
|
&& (pdev->bus->self->device == 0x0021)) {
|
|
return 0;
|
|
}
|
|
|
|
return 2;
|
|
}
|