[mirror_ubuntu-bionic-kernel.git] / drivers / gpu / drm / mga / 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 "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;
}
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
1da177e4 LT	32	#include "drmP.h"
	33	#include "drm.h"
	34	#include "mga_drm.h"
	35	#include "mga_drv.h"
	36
1da177e4 LT	37	#include "drm_pciids.h"
1da177e4 LT	38
eddca551	39	static int mga_driver_device_is_agp(struct drm_device * dev);
1da177e4 LT	40
	41	static struct pci_device_id pciidlist[] = {
	42	mga_PCI_IDS
	43	};
	44
1da177e4	45	static struct drm_driver driver = {
b5e89ed5	46	.driver_features =
7ccf800e	47	DRIVER_USE_AGP \| DRIVER_USE_MTRR \| DRIVER_PCI_DMA \|
af6061af DA	48	DRIVER_HAVE_DMA \| DRIVER_HAVE_IRQ \| DRIVER_IRQ_SHARED \|
af6061af DA	49	DRIVER_IRQ_VBL,
958de71b	50	.dev_priv_size = sizeof(drm_mga_buf_priv_t),
22eae947 DA	51	.load = mga_driver_load,
	52	.unload = mga_driver_unload,
	53	.lastclose = mga_driver_lastclose,
1da177e4	54	.dma_quiescent = mga_driver_dma_quiescent,
cda17380	55	.device_is_agp = mga_driver_device_is_agp,
af6061af	56	.vblank_wait = mga_driver_vblank_wait,
1da177e4 LT	57	.irq_preinstall = mga_driver_irq_preinstall,
	58	.irq_postinstall = mga_driver_irq_postinstall,
	59	.irq_uninstall = mga_driver_irq_uninstall,
	60	.irq_handler = mga_driver_irq_handler,
	61	.reclaim_buffers = drm_core_reclaim_buffers,
	62	.get_map_ofs = drm_core_get_map_ofs,
	63	.get_reg_ofs = drm_core_get_reg_ofs,
1da177e4 LT	64	.ioctls = mga_ioctls,
	65	.dma_ioctl = mga_dma_buffers,
	66	.fops = {
b5e89ed5 DA	67	.owner = THIS_MODULE,
	68	.open = drm_open,
	69	.release = drm_release,
	70	.ioctl = drm_ioctl,
	71	.mmap = drm_mmap,
	72	.poll = drm_poll,
	73	.fasync = drm_fasync,
8ca7c1df	74	#ifdef CONFIG_COMPAT
b5e89ed5	75	.compat_ioctl = mga_compat_ioctl,
8ca7c1df	76	#endif
b5e89ed5	77	},
1da177e4	78	.pci_driver = {
22eae947 DA	79	.name = DRIVER_NAME,
	80	.id_table = pciidlist,
	81	},
	82
	83	.name = DRIVER_NAME,
	84	.desc = DRIVER_DESC,
	85	.date = DRIVER_DATE,
	86	.major = DRIVER_MAJOR,
	87	.minor = DRIVER_MINOR,
	88	.patchlevel = DRIVER_PATCHLEVEL,
1da177e4 LT	89	};
	90
	91	static int __init mga_init(void)
	92	{
	93	driver.num_ioctls = mga_max_ioctl;
	94	return drm_init(&driver);
	95	}
	96
	97	static void __exit mga_exit(void)
	98	{
	99	drm_exit(&driver);
	100	}
	101
	102	module_init(mga_init);
	103	module_exit(mga_exit);
	104
b5e89ed5 DA	105	MODULE_AUTHOR(DRIVER_AUTHOR);
b5e89ed5 DA	106	MODULE_DESCRIPTION(DRIVER_DESC);
1da177e4	107	MODULE_LICENSE("GPL and additional rights");
cda17380 DA	108
	109	/**
	110	* Determine if the device really is AGP or not.
	111	*
	112	* In addition to the usual tests performed by \c drm_device_is_agp, this
	113	* function detects PCI G450 cards that appear to the system exactly like
	114	* AGP G450 cards.
	115	*
	116	* \param dev The device to be tested.
	117	*
	118	* \returns
	119	* If the device is a PCI G450, zero is returned. Otherwise 2 is returned.
	120	*/
eddca551	121	static int mga_driver_device_is_agp(struct drm_device * dev)
cda17380	122	{
b5e89ed5	123	const struct pci_dev *const pdev = dev->pdev;
cda17380 DA	124
	125	/* There are PCI versions of the G450. These cards have the
	126	* same PCI ID as the AGP G450, but have an additional PCI-to-PCI
	127	* bridge chip. We detect these cards, which are not currently
	128	* supported by this driver, by looking at the device ID of the
	129	* bus the "card" is on. If vendor is 0x3388 (Hint Corp) and the
	130	* device is 0x0021 (HB6 Universal PCI-PCI bridge), we reject the
	131	* device.
	132	*/
b5e89ed5	133
bd07ed2b	134	if ((pdev->device == 0x0525) && pdev->bus->self
b5e89ed5 DA	135	&& (pdev->bus->self->vendor == 0x3388)
b5e89ed5 DA	136	&& (pdev->bus->self->device == 0x0021)) {
cda17380 DA	137	return 0;
	138	}
	139
	140	return 2;
	141	}