radeon_drv.c

来自「LINUX 2.6.17.4的源码」· C语言 代码 · 共 127 行

/**
 * \file radeon_drv.c
 * ATI Radeon driver
 *
 * \author Gareth Hughes <[e-mail]>
 */

/*
 * 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.
 */

#include <linux/config.h>
#include "drmP.h"
#include "drm.h"
#include "radeon_drm.h"
#include "radeon_drv.h"

#include "drm_pciids.h"

int radeon_no_wb;

MODULE_PARM_DESC(no_wb, "Disable AGP writeback for scratch registers\n");
module_param_named(no_wb, radeon_no_wb, int, 0444);

static int dri_library_name(struct drm_device *dev, char *buf)
{
	drm_radeon_private_t *dev_priv = dev->dev_private;
	int family = dev_priv->flags & CHIP_FAMILY_MASK;

	return snprintf(buf, PAGE_SIZE, "%s\n",
		        (family < CHIP_R200) ? "radeon" :
		        ((family < CHIP_R300) ? "r200" :
		        "r300"));
}

static struct pci_device_id pciidlist[] = {
	radeon_PCI_IDS
};

static struct drm_driver driver = {
	.driver_features =
	    DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_PCI_DMA | DRIVER_SG |
	    DRIVER_HAVE_IRQ | DRIVER_HAVE_DMA | DRIVER_IRQ_SHARED |
	    DRIVER_IRQ_VBL,
	.dev_priv_size = sizeof(drm_radeon_buf_priv_t),
	.load = radeon_driver_load,
	.firstopen = radeon_driver_firstopen,
	.open = radeon_driver_open,
	.preclose = radeon_driver_preclose,
	.postclose = radeon_driver_postclose,
	.lastclose = radeon_driver_lastclose,
	.unload = radeon_driver_unload,
	.vblank_wait = radeon_driver_vblank_wait,
	.dri_library_name = dri_library_name,
	.irq_preinstall = radeon_driver_irq_preinstall,
	.irq_postinstall = radeon_driver_irq_postinstall,
	.irq_uninstall = radeon_driver_irq_uninstall,
	.irq_handler = radeon_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 = radeon_ioctls,
	.dma_ioctl = radeon_cp_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 = radeon_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 radeon_init(void)
{
	driver.num_ioctls = radeon_max_ioctl;
	return drm_init(&driver);
}

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

module_init(radeon_init);
module_exit(radeon_exit);

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