1 | /* $NetBSD: icp_ioctl.c,v 1.21 2014/07/25 08:10:37 dholland Exp $ */ |
2 | |
3 | /*- |
4 | * Copyright (c) 2003 The NetBSD Foundation, Inc. |
5 | * All rights reserved. |
6 | * |
7 | * This code is derived from software contributed to The NetBSD Foundation |
8 | * by Jason R. Thorpe of Wasabi Systems, Inc. |
9 | * |
10 | * Redistribution and use in source and binary forms, with or without |
11 | * modification, are permitted provided that the following conditions |
12 | * are met: |
13 | * 1. Redistributions of source code must retain the above copyright |
14 | * notice, this list of conditions and the following disclaimer. |
15 | * 2. Redistributions in binary form must reproduce the above copyright |
16 | * notice, this list of conditions and the following disclaimer in the |
17 | * documentation and/or other materials provided with the distribution. |
18 | * |
19 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
20 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
21 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
22 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
23 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
24 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
25 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
26 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
27 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
28 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
29 | * POSSIBILITY OF SUCH DAMAGE. |
30 | */ |
31 | |
32 | /* |
33 | * Copyright (c) 2000-01 Intel Corporation |
34 | * All Rights Reserved |
35 | * |
36 | * Redistribution and use in source and binary forms, with or without |
37 | * modification, are permitted provided that the following conditions |
38 | * are met: |
39 | * 1. Redistributions of source code must retain the above copyright |
40 | * notice, this list of conditions, and the following disclaimer, |
41 | * without modification, immediately at the beginning of the file. |
42 | * 2. Redistributions in binary form must reproduce the above copyright |
43 | * notice, this list of conditions and the following disclaimer in the |
44 | * documentation and/or other materials provided with the distribution. |
45 | * 3. The name of the author may not be used to endorse or promote products |
46 | * derived from this software without specific prior written permission. |
47 | * |
48 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
49 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
50 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
51 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR |
52 | * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
53 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
54 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
55 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
56 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
57 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
58 | * SUCH DAMAGE. |
59 | */ |
60 | |
61 | /* |
62 | * icp_ioctl.c: Ioctl interface for the ICP-Vortex management tools. |
63 | * |
64 | * Based on ICP's FreeBSD "iir" driver ioctl interface, written by |
65 | * Achim Leubner <achim.leubner@intel.com>. |
66 | * |
67 | * This is intended to be ABI-compatile with the ioctl interface for |
68 | * other OSs. |
69 | */ |
70 | |
71 | #include <sys/cdefs.h> |
72 | __KERNEL_RCSID(0, "$NetBSD: icp_ioctl.c,v 1.21 2014/07/25 08:10:37 dholland Exp $" ); |
73 | |
74 | #include <sys/param.h> |
75 | #include <sys/systm.h> |
76 | #include <sys/kernel.h> |
77 | #include <sys/device.h> |
78 | #include <sys/proc.h> |
79 | #include <sys/conf.h> |
80 | #include <sys/ioctl.h> |
81 | #include <sys/kauth.h> |
82 | |
83 | #include <sys/bus.h> |
84 | |
85 | #include <dev/ic/icpreg.h> |
86 | #include <dev/ic/icpvar.h> |
87 | |
88 | /* These are simply the same as ICP's "iir" driver for FreeBSD. */ |
89 | #define ICP_DRIVER_VERSION 1 |
90 | #define ICP_DRIVER_SUBVERSION 3 |
91 | |
92 | static dev_type_open(icpopen); |
93 | static dev_type_ioctl(icpioctl); |
94 | |
95 | const struct cdevsw icp_cdevsw = { |
96 | .d_open = icpopen, |
97 | .d_close = nullclose, |
98 | .d_read = noread, |
99 | .d_write = nowrite, |
100 | .d_ioctl = icpioctl, |
101 | .d_stop = nostop, |
102 | .d_tty = notty, |
103 | .d_poll = nopoll, |
104 | .d_mmap = nommap, |
105 | .d_kqfilter = nokqfilter, |
106 | .d_discard = nodiscard, |
107 | .d_flag = D_OTHER |
108 | }; |
109 | |
110 | extern struct cfdriver icp_cd; |
111 | |
112 | kmutex_t icp_ioctl_mutex; |
113 | |
114 | static int |
115 | icpopen(dev_t dev, int flag, int mode, struct lwp *l) |
116 | { |
117 | |
118 | if (device_lookup(&icp_cd, minor(dev)) == NULL) |
119 | return (ENXIO); |
120 | |
121 | return (0); |
122 | } |
123 | |
124 | static int |
125 | icpioctl(dev_t dev, u_long cmd, void *data, int flag, |
126 | struct lwp *l) |
127 | { |
128 | int error = 0; |
129 | |
130 | mutex_enter(&icp_ioctl_mutex); |
131 | |
132 | switch (cmd) { |
133 | case GDT_IOCTL_GENERAL: |
134 | { |
135 | struct icp_softc *icp; |
136 | gdt_ucmd_t *ucmd = (void *) data; |
137 | |
138 | error = kauth_authorize_device_passthru(l->l_cred, dev, |
139 | KAUTH_REQ_DEVICE_RAWIO_PASSTHRU_ALL, data); |
140 | if (error) |
141 | break; |
142 | |
143 | icp = device_lookup_private(&icp_cd, ucmd->io_node); |
144 | if (icp == NULL) { |
145 | error = ENXIO; |
146 | break; |
147 | } |
148 | |
149 | error = icp_ucmd(icp, ucmd); |
150 | break; |
151 | } |
152 | |
153 | case GDT_IOCTL_DRVERS: |
154 | *(int *) data = |
155 | (ICP_DRIVER_VERSION << 8) | ICP_DRIVER_SUBVERSION; |
156 | break; |
157 | |
158 | case GDT_IOCTL_CTRTYPE: |
159 | { |
160 | struct icp_softc *icp; |
161 | gdt_ctrt_t *ctrt = (void *) data; |
162 | |
163 | icp = device_lookup_private(&icp_cd, ctrt->io_node); |
164 | if (icp == NULL) { |
165 | error = ENXIO; |
166 | break; |
167 | } |
168 | |
169 | /* XXX magic numbers */ |
170 | ctrt->oem_id = 0x8000; |
171 | ctrt->type = 0xfd; |
172 | ctrt->info = (icp->icp_pci_bus << 8) | (icp->icp_pci_device << 3); |
173 | ctrt->ext_type = 0x6000 | icp->icp_pci_subdevice_id; |
174 | ctrt->device_id = icp->icp_pci_device_id; |
175 | ctrt->sub_device_id = icp->icp_pci_subdevice_id; |
176 | break; |
177 | } |
178 | |
179 | case GDT_IOCTL_OSVERS: |
180 | { |
181 | gdt_osv_t *osv = (void *) data; |
182 | |
183 | osv->oscode = 12; |
184 | |
185 | /* |
186 | * __NetBSD_Version__ is encoded thusly: |
187 | * |
188 | * MMmmrrpp00 |
189 | * |
190 | * M = major version |
191 | * m = minor version |
192 | * r = release ["",A-Z[A-Z] but numeric] |
193 | * p = patchlevel |
194 | * |
195 | * Since the ABI is not supposed to change between |
196 | * patchlevels of the same major/minor version, we |
197 | * will encode major/minor/release into the returned |
198 | * data. |
199 | */ |
200 | |
201 | osv->version = __NetBSD_Version__ / 100000000; |
202 | osv->subversion = (__NetBSD_Version__ / 1000000) % 100; |
203 | osv->revision = (__NetBSD_Version__ / 10000) % 100; |
204 | |
205 | strcpy(osv->name, ostype); |
206 | break; |
207 | } |
208 | |
209 | case GDT_IOCTL_CTRCNT: |
210 | *(int *) data = icp_count; |
211 | break; |
212 | |
213 | case GDT_IOCTL_EVENT: |
214 | { |
215 | struct icp_softc *icp; |
216 | gdt_event_t *evt = (void *) data; |
217 | gdt_evt_str *e = &evt->dvr; |
218 | int s; |
219 | |
220 | icp = device_lookup_private(&icp_cd, minor(dev)); |
221 | |
222 | switch (evt->erase) { |
223 | case 0xff: |
224 | switch (evt->dvr.event_source) { |
225 | case GDT_ES_TEST: |
226 | e->event_data.size = |
227 | sizeof(e->event_data.eu.test); |
228 | break; |
229 | |
230 | case GDT_ES_DRIVER: |
231 | e->event_data.size = |
232 | sizeof(e->event_data.eu.driver); |
233 | break; |
234 | |
235 | case GDT_ES_SYNC: |
236 | e->event_data.size = |
237 | sizeof(e->event_data.eu.sync); |
238 | break; |
239 | |
240 | default: |
241 | e->event_data.size = |
242 | sizeof(e->event_data.eu.async); |
243 | break; |
244 | } |
245 | s = splbio(); |
246 | icp_store_event(icp, e->event_source, e->event_idx, |
247 | &e->event_data); |
248 | splx(s); |
249 | break; |
250 | |
251 | case 0xfe: |
252 | s = splbio(); |
253 | icp_clear_events(icp); |
254 | splx(s); |
255 | break; |
256 | |
257 | case 0: |
258 | evt->handle = icp_read_event(icp, evt->handle, e); |
259 | break; |
260 | |
261 | default: |
262 | icp_readapp_event(icp, (u_int8_t) evt->erase, e); |
263 | break; |
264 | } |
265 | break; |
266 | } |
267 | |
268 | case GDT_IOCTL_STATIST: |
269 | memcpy(&icp_stats, data, sizeof(gdt_statist_t)); |
270 | break; |
271 | |
272 | |
273 | case GDT_IOCTL_RESCAN: |
274 | { |
275 | struct icp_softc *icp; |
276 | gdt_rescan_t *rsc = (void *) data; |
277 | |
278 | icp = device_lookup_private(&icp_cd, rsc->io_node); |
279 | if (icp == NULL) { |
280 | error = ENXIO; |
281 | break; |
282 | } |
283 | |
284 | error = icp_freeze(icp); |
285 | if (error) |
286 | break; |
287 | if (rsc->flag == 0) |
288 | icp_rescan_all(icp); |
289 | else |
290 | icp_rescan(icp, rsc->hdr_no); |
291 | icp_unfreeze(icp); |
292 | break; |
293 | } |
294 | |
295 | default: |
296 | error = ENOTTY; |
297 | } |
298 | |
299 | mutex_exit(&icp_ioctl_mutex); |
300 | |
301 | return (error); |
302 | } |
303 | |