1 /*- 2 * CAM ioctl compatibility shims 3 * 4 * Copyright (c) 2013 Scott Long 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions, and the following disclaimer, 12 * without modification, immediately at the beginning of the file. 13 * 2. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 20 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 */ 29 30 #include <sys/cdefs.h> 31 __FBSDID("$FreeBSD$"); 32 33 #include <sys/param.h> 34 #include <sys/systm.h> 35 #include <sys/types.h> 36 #include <sys/kernel.h> 37 #include <sys/conf.h> 38 #include <sys/fcntl.h> 39 40 #include <sys/lock.h> 41 #include <sys/mutex.h> 42 #include <sys/sysctl.h> 43 #include <sys/kthread.h> 44 45 #include <cam/cam.h> 46 #include <cam/cam_ccb.h> 47 #include <cam/cam_compat.h> 48 49 #include <cam/scsi/scsi_pass.h> 50 51 #include "opt_cam.h" 52 53 int 54 cam_compat_ioctl(struct cdev *dev, u_long *cmd, caddr_t *addr, int *flag, struct thread *td) 55 { 56 int error; 57 58 switch (*cmd) { 59 case CAMIOCOMMAND_0x16: 60 { 61 union ccb *ccb; 62 63 ccb = (union ccb *)*addr; 64 if (ccb->ccb_h.flags & CAM_SG_LIST_PHYS_0x16) { 65 ccb->ccb_h.flags &= ~CAM_SG_LIST_PHYS_0x16; 66 ccb->ccb_h.flags |= CAM_DATA_SG_PADDR; 67 } 68 if (ccb->ccb_h.flags & CAM_DATA_PHYS_0x16) { 69 ccb->ccb_h.flags &= ~CAM_DATA_PHYS_0x16; 70 ccb->ccb_h.flags |= CAM_DATA_PADDR; 71 } 72 if (ccb->ccb_h.flags & CAM_SCATTER_VALID_0x16) { 73 ccb->ccb_h.flags &= CAM_SCATTER_VALID_0x16; 74 ccb->ccb_h.flags |= CAM_DATA_SG; 75 } 76 *cmd = CAMIOCOMMAND; 77 error = EAGAIN; 78 break; 79 } 80 case CAMGETPASSTHRU_0x16: 81 *cmd = CAMGETPASSTHRU; 82 error = EAGAIN; 83 break; 84 default: 85 error = ENOTTY; 86 } 87 88 return (error); 89 } 90