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120 lines
3.3 KiB
C
120 lines
3.3 KiB
C
/* ioctl.c -- IOCTL processing for DRM -*- c -*-
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* Created: Fri Jan 8 09:01:26 1999 by faith@precisioninsight.com
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*
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* Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
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* Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* Authors:
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* Rickard E. (Rik) Faith <faith@valinux.com>
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*
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*/
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#define __NO_VERSION__
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#include "drmP.h"
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#include <sys/bus.h>
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#include <pci/pcivar.h>
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int
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drm_irq_busid(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p)
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{
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drm_irq_busid_t id;
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devclass_t pci;
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device_t bus, dev;
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device_t *kids;
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int error, i, num_kids;
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id = *(drm_irq_busid_t *) data;
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pci = devclass_find("pci");
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if (!pci)
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return ENOENT;
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bus = devclass_get_device(pci, id.busnum);
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if (!bus)
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return ENOENT;
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error = device_get_children(bus, &kids, &num_kids);
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if (error)
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return error;
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dev = 0;
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for (i = 0; i < num_kids; i++) {
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dev = kids[i];
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if (pci_get_slot(dev) == id.devnum
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&& pci_get_function(dev) == id.funcnum)
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break;
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}
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free(kids, M_TEMP);
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if (i != num_kids)
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id.irq = pci_get_irq(dev);
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else
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id.irq = 0;
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DRM_DEBUG("%d:%d:%d => IRQ %d\n",
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id.busnum, id.devnum, id.funcnum, id.irq);
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*(drm_irq_busid_t *) data = id;
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return 0;
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}
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int
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drm_getunique(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p)
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{
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drm_device_t *dev = kdev->si_drv1;
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drm_unique_t u;
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int error;
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u = *(drm_unique_t *) data;
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if (u.unique_len >= dev->unique_len) {
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error = copyout(dev->unique, u.unique, dev->unique_len);
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if (error)
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return error;
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}
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u.unique_len = dev->unique_len;
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*(drm_unique_t *) data = u;
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return 0;
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}
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int
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drm_setunique(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p)
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{
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drm_device_t *dev = kdev->si_drv1;
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drm_unique_t u;
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int error;
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if (dev->unique_len || dev->unique) return EBUSY;
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u = *(drm_unique_t *) data;
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dev->unique_len = u.unique_len;
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dev->unique = drm_alloc(u.unique_len + 1, DRM_MEM_DRIVER);
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error = copyin(u.unique, dev->unique, dev->unique_len);
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if (error)
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return error;
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dev->unique[dev->unique_len] = '\0';
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dev->devname = drm_alloc(strlen(dev->name) + strlen(dev->unique) + 2,
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DRM_MEM_DRIVER);
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sprintf(dev->devname, "%s@%s", dev->name, dev->unique);
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return 0;
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}
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