90 lines
2.5 KiB
C
90 lines
2.5 KiB
C
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/*-
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* CAM ioctl compatibility shims
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*
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* Copyright (c) 2013 Scott Long
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification, immediately at the beginning of the file.
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* 2. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/types.h>
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#include <sys/kernel.h>
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#include <sys/conf.h>
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#include <sys/fcntl.h>
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#include <sys/lock.h>
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#include <sys/mutex.h>
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#include <sys/sysctl.h>
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#include <sys/kthread.h>
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#include <cam/cam.h>
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#include <cam/cam_ccb.h>
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#include <cam/cam_compat.h>
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#include <cam/scsi/scsi_pass.h>
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#include "opt_cam.h"
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int
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cam_compat_ioctl(struct cdev *dev, u_long *cmd, caddr_t *addr, int *flag, struct thread *td)
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{
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int error;
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switch (*cmd) {
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case CAMIOCOMMAND_0x16:
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{
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union ccb *ccb;
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ccb = (union ccb *)*addr;
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if (ccb->ccb_h.flags & CAM_SG_LIST_PHYS_0x16) {
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ccb->ccb_h.flags &= ~CAM_SG_LIST_PHYS_0x16;
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ccb->ccb_h.flags |= CAM_DATA_SG_PADDR;
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}
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if (ccb->ccb_h.flags & CAM_DATA_PHYS_0x16) {
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ccb->ccb_h.flags &= ~CAM_DATA_PHYS_0x16;
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ccb->ccb_h.flags |= CAM_DATA_PADDR;
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}
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if (ccb->ccb_h.flags & CAM_SCATTER_VALID_0x16) {
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ccb->ccb_h.flags &= CAM_SCATTER_VALID_0x16;
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ccb->ccb_h.flags |= CAM_DATA_SG;
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}
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*cmd = CAMIOCOMMAND;
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error = EAGAIN;
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break;
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}
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case CAMGETPASSTHRU_0x16:
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*cmd = CAMGETPASSTHRU;
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error = EAGAIN;
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break;
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default:
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error = ENOTTY;
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}
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return (error);
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}
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