2 * Copyright (c) 2014 John Baldwin <jhb@FreeBSD.org>
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 #include <sys/cdefs.h>
27 __FBSDID("$FreeBSD$");
29 #include <sys/types.h>
37 devctl_request(u_long cmd, struct devreq *req)
39 static int devctl2_fd = -1;
41 if (devctl2_fd == -1) {
42 devctl2_fd = open("/dev/devctl2", O_RDONLY);
46 return (ioctl(devctl2_fd, cmd, req));
50 devctl_simple_request(u_long cmd, const char *name, int flags)
54 memset(&req, 0, sizeof(req));
55 if (strlcpy(req.dr_name, name, sizeof(req.dr_name)) >=
56 sizeof(req.dr_name)) {
61 return (devctl_request(cmd, &req));
65 devctl_attach(const char *device)
68 return (devctl_simple_request(DEV_ATTACH, device, 0));
72 devctl_detach(const char *device, bool force)
75 return (devctl_simple_request(DEV_DETACH, device, force ?
76 DEVF_FORCE_DETACH : 0));
80 devctl_enable(const char *device)
83 return (devctl_simple_request(DEV_ENABLE, device, 0));
87 devctl_disable(const char *device, bool force_detach)
90 return (devctl_simple_request(DEV_DISABLE, device, force_detach ?
91 DEVF_FORCE_DETACH : 0));
95 devctl_suspend(const char *device)
98 return (devctl_simple_request(DEV_SUSPEND, device, 0));
102 devctl_resume(const char *device)
105 return (devctl_simple_request(DEV_RESUME, device, 0));
109 devctl_set_driver(const char *device, const char *driver, bool force)
113 memset(&req, 0, sizeof(req));
114 if (strlcpy(req.dr_name, device, sizeof(req.dr_name)) >=
115 sizeof(req.dr_name)) {
119 req.dr_data = __DECONST(char *, driver);
121 req.dr_flags |= DEVF_SET_DRIVER_DETACH;
122 return (devctl_request(DEV_SET_DRIVER, &req));
126 devctl_clear_driver(const char *device, bool force)
129 return (devctl_simple_request(DEV_CLEAR_DRIVER, device, force ?
130 DEVF_CLEAR_DRIVER_DETACH : 0));
134 devctl_rescan(const char *device)
137 return (devctl_simple_request(DEV_RESCAN, device, 0));
141 devctl_delete(const char *device, bool force)
144 return (devctl_simple_request(DEV_DELETE, device, force ?
145 DEVF_FORCE_DELETE : 0));
152 return (devctl_simple_request(DEV_FREEZE, "", 0));
159 return (devctl_simple_request(DEV_THAW, "", 0));
163 devctl_reset(const char *device, bool detach)
166 return (devctl_simple_request(DEV_RESET, device, detach ?
167 DEVF_RESET_DETACH : 0));