[deliverable/linux.git] / drivers / char / drm / mga_drv.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 <linux/config.h>
#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(drm_device_t * dev);
static int postinit(struct drm_device *dev, unsigned long flags)
{
	drm_mga_private_t *const dev_priv =
	    (drm_mga_private_t *) dev->dev_private;

	dev_priv->mmio_base = pci_resource_start(dev->pdev, 1);
	dev_priv->mmio_size = pci_resource_len(dev->pdev, 1);

	dev->counters += 3;
	dev->types[6] = _DRM_STAT_IRQ;
	dev->types[7] = _DRM_STAT_PRIMARY;
	dev->types[8] = _DRM_STAT_SECONDARY;

	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[] = {
	mga_PCI_IDS
};

extern drm_ioctl_desc_t mga_ioctls[];
extern int mga_max_ioctl;

static struct drm_driver driver = {
	.driver_features =
	    DRIVER_USE_AGP | DRIVER_REQUIRE_AGP | DRIVER_USE_MTRR |
	    DRIVER_HAVE_DMA | DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED |
	    DRIVER_IRQ_VBL,
	.preinit = mga_driver_preinit,
	.postcleanup = mga_driver_postcleanup,
	.pretakedown = mga_driver_pretakedown,
	.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,
	.postinit = postinit,
	.version = version,
	.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,
		       }
};

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.
 */
int mga_driver_device_is_agp(drm_device_t * 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->vendor == 0x3388)
	    && (pdev->bus->self->device == 0x0021)) {
		return 0;
	}

	return 2;
}
Commit	Line	Data
1da177e4 LT	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	* Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
	5	* Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
	6	* All Rights Reserved.
	7	*
	8	* Permission is hereby granted, free of charge, to any person obtaining a
	9	* copy of this software and associated documentation files (the "Software"),
	10	* to deal in the Software without restriction, including without limitation
	11	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	12	* and/or sell copies of the Software, and to permit persons to whom the
	13	* Software is furnished to do so, subject to the following conditions:
	14	*
	15	* The above copyright notice and this permission notice (including the next
	16	* paragraph) shall be included in all copies or substantial portions of the
	17	* Software.
	18	*
	19	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	20	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	21	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	22	* VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
	23	* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
	24	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
	25	* OTHER DEALINGS IN THE SOFTWARE.
	26	*
	27	* Authors:
	28	* Rickard E. (Rik) Faith <faith@valinux.com>
	29	* Gareth Hughes <gareth@valinux.com>
	30	*/
	31
	32	#include <linux/config.h>
	33	#include "drmP.h"
	34	#include "drm.h"
	35	#include "mga_drm.h"
	36	#include "mga_drv.h"
	37
1da177e4 LT	38	#include "drm_pciids.h"
1da177e4 LT	39
cda17380	40	static int mga_driver_device_is_agp(drm_device_t * dev);
b5e89ed5	41	static int postinit(struct drm_device *dev, unsigned long flags)
1da177e4	42	{
b5e89ed5 DA	43	drm_mga_private_t *const dev_priv =
b5e89ed5 DA	44	(drm_mga_private_t *) dev->dev_private;
d01cff40 DA	45
	46	dev_priv->mmio_base = pci_resource_start(dev->pdev, 1);
	47	dev_priv->mmio_size = pci_resource_len(dev->pdev, 1);
	48
1da177e4 LT	49	dev->counters += 3;
	50	dev->types[6] = _DRM_STAT_IRQ;
	51	dev->types[7] = _DRM_STAT_PRIMARY;
	52	dev->types[8] = _DRM_STAT_SECONDARY;
	53
b5e89ed5 DA	54	DRM_INFO("Initialized %s %d.%d.%d %s on minor %d: %s\n",
	55	DRIVER_NAME,
	56	DRIVER_MAJOR,
	57	DRIVER_MINOR,
	58	DRIVER_PATCHLEVEL,
	59	DRIVER_DATE, dev->primary.minor, pci_pretty_name(dev->pdev)
	60	);
1da177e4 LT	61	return 0;
	62	}
	63
b5e89ed5	64	static int version(drm_version_t * version)
1da177e4 LT	65	{
	66	int len;
	67
	68	version->version_major = DRIVER_MAJOR;
	69	version->version_minor = DRIVER_MINOR;
	70	version->version_patchlevel = DRIVER_PATCHLEVEL;
b5e89ed5 DA	71	DRM_COPY(version->name, DRIVER_NAME);
	72	DRM_COPY(version->date, DRIVER_DATE);
	73	DRM_COPY(version->desc, DRIVER_DESC);
1da177e4 LT	74	return 0;
	75	}
	76
	77	static struct pci_device_id pciidlist[] = {
	78	mga_PCI_IDS
	79	};
	80
	81	extern drm_ioctl_desc_t mga_ioctls[];
	82	extern int mga_max_ioctl;
	83
	84	static struct drm_driver driver = {
b5e89ed5 DA	85	.driver_features =
	86	DRIVER_USE_AGP \| DRIVER_REQUIRE_AGP \| DRIVER_USE_MTRR \|
	87	DRIVER_HAVE_DMA \| DRIVER_HAVE_IRQ \| DRIVER_IRQ_SHARED \|
	88	DRIVER_IRQ_VBL,
d01cff40 DA	89	.preinit = mga_driver_preinit,
d01cff40 DA	90	.postcleanup = mga_driver_postcleanup,
1da177e4 LT	91	.pretakedown = mga_driver_pretakedown,
1da177e4 LT	92	.dma_quiescent = mga_driver_dma_quiescent,
cda17380	93	.device_is_agp = mga_driver_device_is_agp,
1da177e4 LT	94	.vblank_wait = mga_driver_vblank_wait,
	95	.irq_preinstall = mga_driver_irq_preinstall,
	96	.irq_postinstall = mga_driver_irq_postinstall,
	97	.irq_uninstall = mga_driver_irq_uninstall,
	98	.irq_handler = mga_driver_irq_handler,
	99	.reclaim_buffers = drm_core_reclaim_buffers,
	100	.get_map_ofs = drm_core_get_map_ofs,
	101	.get_reg_ofs = drm_core_get_reg_ofs,
	102	.postinit = postinit,
	103	.version = version,
	104	.ioctls = mga_ioctls,
	105	.dma_ioctl = mga_dma_buffers,
	106	.fops = {
b5e89ed5 DA	107	.owner = THIS_MODULE,
	108	.open = drm_open,
	109	.release = drm_release,
	110	.ioctl = drm_ioctl,
	111	.mmap = drm_mmap,
	112	.poll = drm_poll,
	113	.fasync = drm_fasync,
8ca7c1df	114	#ifdef CONFIG_COMPAT
b5e89ed5	115	.compat_ioctl = mga_compat_ioctl,
8ca7c1df	116	#endif
b5e89ed5	117	},
1da177e4	118	.pci_driver = {
b5e89ed5 DA	119	.name = DRIVER_NAME,
	120	.id_table = pciidlist,
	121	}
1da177e4 LT	122	};
	123
	124	static int __init mga_init(void)
	125	{
	126	driver.num_ioctls = mga_max_ioctl;
	127	return drm_init(&driver);
	128	}
	129
	130	static void __exit mga_exit(void)
	131	{
	132	drm_exit(&driver);
	133	}
	134
	135	module_init(mga_init);
	136	module_exit(mga_exit);
	137
b5e89ed5 DA	138	MODULE_AUTHOR(DRIVER_AUTHOR);
b5e89ed5 DA	139	MODULE_DESCRIPTION(DRIVER_DESC);
1da177e4	140	MODULE_LICENSE("GPL and additional rights");
cda17380 DA	141
	142	/**
	143	* Determine if the device really is AGP or not.
	144	*
	145	* In addition to the usual tests performed by \c drm_device_is_agp, this
	146	* function detects PCI G450 cards that appear to the system exactly like
	147	* AGP G450 cards.
	148	*
	149	* \param dev The device to be tested.
	150	*
	151	* \returns
	152	* If the device is a PCI G450, zero is returned. Otherwise 2 is returned.
	153	*/
	154	int mga_driver_device_is_agp(drm_device_t * dev)
	155	{
b5e89ed5	156	const struct pci_dev *const pdev = dev->pdev;
cda17380 DA	157
	158	/* There are PCI versions of the G450. These cards have the
	159	* same PCI ID as the AGP G450, but have an additional PCI-to-PCI
	160	* bridge chip. We detect these cards, which are not currently
	161	* supported by this driver, by looking at the device ID of the
	162	* bus the "card" is on. If vendor is 0x3388 (Hint Corp) and the
	163	* device is 0x0021 (HB6 Universal PCI-PCI bridge), we reject the
	164	* device.
	165	*/
b5e89ed5 DA	166
	167	if ((pdev->device == 0x0525)
	168	&& (pdev->bus->self->vendor == 0x3388)
	169	&& (pdev->bus->self->device == 0x0021)) {
cda17380 DA	170	return 0;
	171	}
	172
	173	return 2;
	174	}