FreeBSD/Linux Kernel Cross Reference
sys/dev/iir/iir_ctrl.c
1 /*-
2 * Copyright (c) 2000-03 ICP vortex GmbH
3 * Copyright (c) 2002-03 Intel Corporation
4 * Copyright (c) 2003 Adaptec Inc.
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. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
23 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32 /*
33 * iir_ctrl.c: Control functions and /dev entry points for /dev/iir*
34 *
35 * Written by: Achim Leubner <achim_leubner@adaptec.com>
36 * Fixes/Additions: Boji Tony Kannanthanam <boji.t.kannanthanam@intel.com>
37 *
38 * $Id: iir_ctrl.c 1.3 2003/08/26 12:31:15 achim Exp $"
39 */
40
41 #include <sys/cdefs.h>
42 __FBSDID("$FreeBSD: releng/8.4/sys/dev/iir/iir_ctrl.c 200429 2009-12-12 04:34:22Z marcel $");
43
44 #include <sys/param.h>
45 #include <sys/systm.h>
46 #include <sys/endian.h>
47 #include <sys/malloc.h>
48 #include <sys/kernel.h>
49 #include <sys/uio.h>
50 #include <sys/conf.h>
51 #include <sys/disk.h>
52 #include <sys/stat.h>
53 #include <sys/disklabel.h>
54 #include <sys/sysctl.h>
55 #include <machine/bus.h>
56
57 #include <dev/iir/iir.h>
58
59 /* Entry points and other prototypes */
60 static struct gdt_softc *gdt_minor2softc(int minor_no);
61
62 static d_open_t iir_open;
63 static d_close_t iir_close;
64 static d_write_t iir_write;
65 static d_read_t iir_read;
66 static d_ioctl_t iir_ioctl;
67
68 /* Normally, this is a static structure. But we need it in pci/iir_pci.c */
69 static struct cdevsw iir_cdevsw = {
70 .d_version = D_VERSION,
71 .d_flags = D_NEEDGIANT,
72 .d_open = iir_open,
73 .d_close = iir_close,
74 .d_read = iir_read,
75 .d_write = iir_write,
76 .d_ioctl = iir_ioctl,
77 .d_name = "iir",
78 };
79
80 /*
81 static int iir_devsw_installed = 0;
82 */
83 #ifndef SDEV_PER_HBA
84 static int sdev_made = 0;
85 #endif
86 extern int gdt_cnt;
87 extern gdt_statist_t gdt_stat;
88
89 /*
90 * Given a controller number,
91 * make a special device and return the dev_t
92 */
93 struct cdev *
94 gdt_make_dev(int unit)
95 {
96 struct cdev *dev;
97
98 #ifdef SDEV_PER_HBA
99 dev = make_dev(&iir_cdevsw, hba2minor(unit), UID_ROOT, GID_OPERATOR,
100 S_IRUSR | S_IWUSR, "iir%d", unit);
101 #else
102 if (sdev_made)
103 return (0);
104 dev = make_dev(&iir_cdevsw, 0, UID_ROOT, GID_OPERATOR,
105 S_IRUSR | S_IWUSR, "iir");
106 sdev_made = 1;
107 #endif
108 return (dev);
109 }
110
111 void
112 gdt_destroy_dev(struct cdev *dev)
113 {
114 if (dev != NULL)
115 destroy_dev(dev);
116 }
117
118 /*
119 * Given a minor device number,
120 * return the pointer to its softc structure
121 */
122 static struct gdt_softc *
123 gdt_minor2softc(int minor_no)
124 {
125 struct gdt_softc *gdt;
126 int hanum;
127
128 #ifdef SDEV_PER_HBA
129 hanum = minor2hba(minor_no);
130 #else
131 hanum = minor_no;
132 #endif
133
134 for (gdt = TAILQ_FIRST(&gdt_softcs);
135 gdt != NULL && gdt->sc_hanum != hanum;
136 gdt = TAILQ_NEXT(gdt, links));
137
138 return (gdt);
139 }
140
141 static int
142 iir_open(struct cdev *dev, int flags, int fmt, struct thread * p)
143 {
144 GDT_DPRINTF(GDT_D_DEBUG, ("iir_open()\n"));
145
146 #ifdef SDEV_PER_HBA
147 int minor_no;
148 struct gdt_softc *gdt;
149
150 minor_no = dev2unit(dev);
151 gdt = gdt_minor2softc(minor_no);
152 if (gdt == NULL)
153 return (ENXIO);
154 #endif
155
156 return (0);
157 }
158
159 static int
160 iir_close(struct cdev *dev, int flags, int fmt, struct thread * p)
161 {
162 GDT_DPRINTF(GDT_D_DEBUG, ("iir_close()\n"));
163
164 #ifdef SDEV_PER_HBA
165 int minor_no;
166 struct gdt_softc *gdt;
167
168 minor_no = dev2unit(dev);
169 gdt = gdt_minor2softc(minor_no);
170 if (gdt == NULL)
171 return (ENXIO);
172 #endif
173
174 return (0);
175 }
176
177 static int
178 iir_write(struct cdev *dev, struct uio * uio, int ioflag)
179 {
180 GDT_DPRINTF(GDT_D_DEBUG, ("iir_write()\n"));
181
182 #ifdef SDEV_PER_HBA
183 int minor_no;
184 struct gdt_softc *gdt;
185
186 minor_no = dev2unit(dev);
187 gdt = gdt_minor2softc(minor_no);
188 if (gdt == NULL)
189 return (ENXIO);
190 #endif
191
192 return (0);
193 }
194
195 static int
196 iir_read(struct cdev *dev, struct uio * uio, int ioflag)
197 {
198 GDT_DPRINTF(GDT_D_DEBUG, ("iir_read()\n"));
199
200 #ifdef SDEV_PER_HBA
201 int minor_no;
202 struct gdt_softc *gdt;
203
204 minor_no = dev2unit(dev);
205 gdt = gdt_minor2softc(minor_no);
206 if (gdt == NULL)
207 return (ENXIO);
208 #endif
209
210 return (0);
211 }
212
213 /**
214 * This is the control syscall interface.
215 * It should be binary compatible with UnixWare,
216 * if not totally syntatically so.
217 */
218
219 static int
220 iir_ioctl(struct cdev *dev, u_long cmd, caddr_t cmdarg, int flags, struct thread * p)
221 {
222 GDT_DPRINTF(GDT_D_DEBUG, ("iir_ioctl() cmd 0x%lx\n",cmd));
223
224 #ifdef SDEV_PER_HBA
225 int minor_no;
226 struct gdt_softc *gdt;
227
228 minor_no = dev2unit(dev);
229 gdt = gdt_minor2softc(minor_no);
230 if (gdt == NULL)
231 return (ENXIO);
232 #endif
233 ++gdt_stat.io_count_act;
234 if (gdt_stat.io_count_act > gdt_stat.io_count_max)
235 gdt_stat.io_count_max = gdt_stat.io_count_act;
236
237 switch (cmd) {
238 case GDT_IOCTL_GENERAL:
239 {
240 gdt_ucmd_t *ucmd;
241 struct gdt_softc *gdt;
242 int lock;
243
244 ucmd = (gdt_ucmd_t *)cmdarg;
245 gdt = gdt_minor2softc(ucmd->io_node);
246 if (gdt == NULL)
247 return (ENXIO);
248 lock = splcam();
249 TAILQ_INSERT_TAIL(&gdt->sc_ucmd_queue, ucmd, links);
250 ucmd->complete_flag = FALSE;
251 splx(lock);
252 gdt_next(gdt);
253 if (!ucmd->complete_flag)
254 (void) tsleep((void *)ucmd, PCATCH | PRIBIO, "iirucw", 0);
255 break;
256 }
257
258 case GDT_IOCTL_DRVERS:
259 case GDT_IOCTL_DRVERS_OLD:
260 *(int *)cmdarg =
261 (IIR_DRIVER_VERSION << 8) | IIR_DRIVER_SUBVERSION;
262 break;
263
264 case GDT_IOCTL_CTRTYPE:
265 case GDT_IOCTL_CTRTYPE_OLD:
266 {
267 gdt_ctrt_t *p;
268 struct gdt_softc *gdt;
269
270 p = (gdt_ctrt_t *)cmdarg;
271 gdt = gdt_minor2softc(p->io_node);
272 if (gdt == NULL)
273 return (ENXIO);
274 /* only RP controllers */
275 p->ext_type = 0x6000 | gdt->sc_device;
276 if (gdt->sc_vendor == INTEL_VENDOR_ID) {
277 p->oem_id = OEM_ID_INTEL;
278 p->type = 0xfd;
279 /* new -> subdevice into ext_type */
280 if (gdt->sc_device >= 0x600)
281 p->ext_type = 0x6000 | gdt->sc_subdevice;
282 } else {
283 p->oem_id = OEM_ID_ICP;
284 p->type = 0xfe;
285 /* new -> subdevice into ext_type */
286 if (gdt->sc_device >= 0x300)
287 p->ext_type = 0x6000 | gdt->sc_subdevice;
288 }
289 p->info = (gdt->sc_bus << 8) | (gdt->sc_slot << 3);
290 p->device_id = gdt->sc_device;
291 p->sub_device_id = gdt->sc_subdevice;
292 break;
293 }
294
295 case GDT_IOCTL_OSVERS:
296 {
297 gdt_osv_t *p;
298
299 p = (gdt_osv_t *)cmdarg;
300 p->oscode = 10;
301 p->version = osrelease[0] - '';
302 if (osrelease[1] == '.')
303 p->subversion = osrelease[2] - '';
304 else
305 p->subversion = 0;
306 if (osrelease[3] == '.')
307 p->revision = osrelease[4] - '';
308 else
309 p->revision = 0;
310 strcpy(p->name, ostype);
311 break;
312 }
313
314 case GDT_IOCTL_CTRCNT:
315 *(int *)cmdarg = gdt_cnt;
316 break;
317
318 case GDT_IOCTL_EVENT:
319 {
320 gdt_event_t *p;
321 int lock;
322
323 p = (gdt_event_t *)cmdarg;
324 if (p->erase == 0xff) {
325 if (p->dvr.event_source == GDT_ES_TEST)
326 p->dvr.event_data.size = sizeof(p->dvr.event_data.eu.test);
327 else if (p->dvr.event_source == GDT_ES_DRIVER)
328 p->dvr.event_data.size= sizeof(p->dvr.event_data.eu.driver);
329 else if (p->dvr.event_source == GDT_ES_SYNC)
330 p->dvr.event_data.size = sizeof(p->dvr.event_data.eu.sync);
331 else
332 p->dvr.event_data.size = sizeof(p->dvr.event_data.eu.async);
333 lock = splcam();
334 gdt_store_event(p->dvr.event_source, p->dvr.event_idx,
335 &p->dvr.event_data);
336 splx(lock);
337 } else if (p->erase == 0xfe) {
338 lock = splcam();
339 gdt_clear_events();
340 splx(lock);
341 } else if (p->erase == 0) {
342 p->handle = gdt_read_event(p->handle, &p->dvr);
343 } else {
344 gdt_readapp_event((u_int8_t)p->erase, &p->dvr);
345 }
346 break;
347 }
348
349 case GDT_IOCTL_STATIST:
350 {
351 gdt_statist_t *p;
352
353 p = (gdt_statist_t *)cmdarg;
354 bcopy(&gdt_stat, p, sizeof(gdt_statist_t));
355 break;
356 }
357
358 default:
359 break;
360 }
361
362 --gdt_stat.io_count_act;
363 return (0);
364 }
365
366 /*
367 static void
368 iir_drvinit(void *unused)
369 {
370 GDT_DPRINTF(GDT_D_DEBUG, ("iir_drvinit()\n"));
371
372 if (!iir_devsw_installed) {
373 cdevsw_add(&iir_cdevsw);
374 iir_devsw_installed = 1;
375 }
376 }
377
378 SYSINIT(iir_dev, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, iir_drvinit, NULL)
379 */
Cache object: 30972107599a3165a7a7b085522c7638
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