savage_drv.c

来自「底层驱动开发」· C语言 代码 · 共 113 行

/* savage_drv.c -- Savage driver for Linux
 *
 * Copyright 2004  Felix Kuehling
 * 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, sub license,
 * 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
 * NON-INFRINGEMENT. IN NO EVENT SHALL FELIX KUEHLING 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.
 */

#include <linux/config.h>
#include "drmP.h"
#include "savage_drm.h"
#include "savage_drv.h"

#include "drm_pciids.h"

static int postinit( struct drm_device *dev, unsigned long flags )
{
	DRM_INFO( "Initialized %s %d.%d.%d %s on minor %d: %s\n",
		DRIVER_NAME,
		DRIVER_MAJOR,
		DRIVER_MINOR,
		DRIVER_PATCHLEVEL,
		DRIVER_DATE,
		dev->primary.minor,
		pci_pretty_name(dev->pdev)
		);
	return 0;
}

static int version( drm_version_t *version )
{
	int len;

	version->version_major = DRIVER_MAJOR;
	version->version_minor = DRIVER_MINOR;
	version->version_patchlevel = DRIVER_PATCHLEVEL;
	DRM_COPY( version->name, DRIVER_NAME );
	DRM_COPY( version->date, DRIVER_DATE );
	DRM_COPY( version->desc, DRIVER_DESC );
	return 0;
}

static struct pci_device_id pciidlist[] = {
	savage_PCI_IDS
};

extern drm_ioctl_desc_t savage_ioctls[];
extern int savage_max_ioctl;

static struct drm_driver driver = {
	.driver_features =
	    DRIVER_USE_AGP | DRIVER_USE_MTRR |
	    DRIVER_HAVE_DMA | DRIVER_PCI_DMA,
	.dev_priv_size = sizeof(drm_savage_buf_priv_t),
	.preinit = savage_preinit,
	.postinit = postinit,
	.postcleanup = savage_postcleanup,
	.reclaim_buffers = savage_reclaim_buffers,
	.get_map_ofs = drm_core_get_map_ofs,
	.get_reg_ofs = drm_core_get_reg_ofs,
	.version = version,
	.ioctls = savage_ioctls,
	.dma_ioctl = savage_bci_buffers,
	.fops = {
		.owner   = THIS_MODULE,
		.open	 = drm_open,
		.release = drm_release,
		.ioctl	 = drm_ioctl,
		.mmap	 = drm_mmap,
		.poll = drm_poll,
		.fasync  = drm_fasync,
	},
	.pci_driver = {
		.name          = DRIVER_NAME,
		.id_table      = pciidlist,
	}
};

static int __init savage_init(void)
{
	driver.num_ioctls = savage_max_ioctl;
	return drm_init(&driver);
}

static void __exit savage_exit(void)
{
	drm_exit(&driver);
}

module_init(savage_init);
module_exit(savage_exit);

MODULE_AUTHOR( DRIVER_AUTHOR );
MODULE_DESCRIPTION( DRIVER_DESC );
MODULE_LICENSE("GPL and additional rights");