iir_ctrl.c revision 129449 
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: head/sys/dev/iir/iir_ctrl.c 129449 2004-05-19 17:46:34Z scottl $");
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 <machine/bus.h>
55#include <vm/vm.h>
56#include <vm/vm_kern.h>
57#include <vm/vm_extern.h>
58#include <vm/pmap.h>
59
60#include <dev/iir/iir.h>
61
62/* Entry points and other prototypes */
63static struct gdt_softc *gdt_minor2softc(int minor_no);
64
65static d_open_t		iir_open;
66static d_close_t	iir_close;
67static d_write_t	iir_write;
68static d_read_t		iir_read;
69static d_ioctl_t	iir_ioctl;
70
71/* Normally, this is a static structure.  But we need it in pci/iir_pci.c */
72static struct cdevsw iir_cdevsw = {
73	.d_version =	D_VERSION,
74	.d_flags =	D_NEEDGIANT,
75	.d_open =	iir_open,
76	.d_close =	iir_close,
77	.d_read =	iir_read,
78	.d_write =	iir_write,
79	.d_ioctl =	iir_ioctl,
80	.d_name =	"iir",
81};
82
83/*
84static int iir_devsw_installed = 0;
85*/
86#ifndef SDEV_PER_HBA
87static int sdev_made = 0;
88#endif
89extern int gdt_cnt;
90extern char ostype[];
91extern char osrelease[];
92extern gdt_statist_t gdt_stat;
93
94/*
95 * Given a controller number,
96 * make a special device and return the dev_t
97 */
98dev_t
99gdt_make_dev(int unit)
100{
101    dev_t dev;
102
103#ifdef SDEV_PER_HBA
104    dev = make_dev(&iir_cdevsw, hba2minor(unit), UID_ROOT, GID_OPERATOR,
105                   S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH, "iir%d", unit);
106#else
107    if (sdev_made)
108        return (0);
109    dev = make_dev(&iir_cdevsw, 0, UID_ROOT, GID_OPERATOR,
110                   S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH, "iir");
111    sdev_made = 1;
112#endif
113    return (dev);
114}
115
116void
117gdt_destroy_dev(dev_t dev)
118{
119    if (dev != NULL)
120        destroy_dev(dev);
121}
122
123/*
124 * Given a minor device number,
125 * return the pointer to its softc structure
126 */
127static struct gdt_softc *
128gdt_minor2softc(int minor_no)
129{
130    struct gdt_softc *gdt;
131    int hanum;
132
133#ifdef SDEV_PER_HBA
134    hanum = minor2hba(minor_no);
135#else
136    hanum = minor_no;
137#endif
138
139    for (gdt = TAILQ_FIRST(&gdt_softcs);
140         gdt != NULL && gdt->sc_hanum != hanum;
141         gdt = TAILQ_NEXT(gdt, links));
142
143    return (gdt);
144}
145
146static int
147iir_open(dev_t dev, int flags, int fmt, d_thread_t * p)
148{
149    GDT_DPRINTF(GDT_D_DEBUG, ("iir_open()\n"));
150
151#ifdef SDEV_PER_HBA
152    int minor_no;
153    struct gdt_softc *gdt;
154
155    minor_no = minor(dev);
156    gdt = gdt_minor2softc(minor_no);
157    if (gdt == NULL)
158        return (ENXIO);
159#endif
160
161    return (0);
162}
163
164static int
165iir_close(dev_t dev, int flags, int fmt, d_thread_t * p)
166{
167    GDT_DPRINTF(GDT_D_DEBUG, ("iir_close()\n"));
168
169#ifdef SDEV_PER_HBA
170    int minor_no;
171    struct gdt_softc *gdt;
172
173    minor_no = minor(dev);
174    gdt = gdt_minor2softc(minor_no);
175    if (gdt == NULL)
176        return (ENXIO);
177#endif
178
179    return (0);
180}
181
182static int
183iir_write(dev_t dev, struct uio * uio, int ioflag)
184{
185    GDT_DPRINTF(GDT_D_DEBUG, ("iir_write()\n"));
186
187#ifdef SDEV_PER_HBA
188    int minor_no;
189    struct gdt_softc *gdt;
190
191    minor_no = minor(dev);
192    gdt = gdt_minor2softc(minor_no);
193    if (gdt == NULL)
194        return (ENXIO);
195#endif
196
197    return (0);
198}
199
200static int
201iir_read(dev_t dev, struct uio * uio, int ioflag)
202{
203    GDT_DPRINTF(GDT_D_DEBUG, ("iir_read()\n"));
204
205#ifdef SDEV_PER_HBA
206    int minor_no;
207    struct gdt_softc *gdt;
208
209    minor_no = minor(dev);
210    gdt = gdt_minor2softc(minor_no);
211    if (gdt == NULL)
212        return (ENXIO);
213#endif
214
215    return (0);
216}
217
218/**
219 * This is the control syscall interface.
220 * It should be binary compatible with UnixWare,
221 * if not totally syntatically so.
222 */
223
224static int
225iir_ioctl(dev_t dev, u_long cmd, caddr_t cmdarg, int flags, d_thread_t * p)
226{
227    GDT_DPRINTF(GDT_D_DEBUG, ("iir_ioctl() cmd 0x%lx\n",cmd));
228
229#ifdef SDEV_PER_HBA
230    int minor_no;
231    struct gdt_softc *gdt;
232
233    minor_no = minor(dev);
234    gdt = gdt_minor2softc(minor_no);
235    if (gdt == NULL)
236        return (ENXIO);
237#endif
238    ++gdt_stat.io_count_act;
239    if (gdt_stat.io_count_act > gdt_stat.io_count_max)
240        gdt_stat.io_count_max = gdt_stat.io_count_act;
241
242    switch (cmd) {
243      case GDT_IOCTL_GENERAL:
244        {
245            gdt_ucmd_t *ucmd;
246            struct gdt_softc *gdt;
247            int lock;
248
249            ucmd = (gdt_ucmd_t *)cmdarg;
250            gdt = gdt_minor2softc(ucmd->io_node);
251            if (gdt == NULL)
252                return (ENXIO);
253            lock = splcam();
254            TAILQ_INSERT_TAIL(&gdt->sc_ucmd_queue, ucmd, links);
255            ucmd->complete_flag = FALSE;
256            splx(lock);
257            gdt_next(gdt);
258            if (!ucmd->complete_flag)
259                (void) tsleep((void *)ucmd, PCATCH | PRIBIO, "iirucw", 0);
260            break;
261        }
262
263      case GDT_IOCTL_DRVERS:
264      case GDT_IOCTL_DRVERS_OLD:
265        *(int *)cmdarg =
266            (IIR_DRIVER_VERSION << 8) | IIR_DRIVER_SUBVERSION;
267        break;
268
269      case GDT_IOCTL_CTRTYPE:
270      case GDT_IOCTL_CTRTYPE_OLD:
271        {
272            gdt_ctrt_t *p;
273            struct gdt_softc *gdt;
274
275            p = (gdt_ctrt_t *)cmdarg;
276            gdt = gdt_minor2softc(p->io_node);
277            if (gdt == NULL)
278                return (ENXIO);
279            /* only RP controllers */
280            p->ext_type = 0x6000 | gdt->sc_device;
281            if (gdt->sc_vendor == INTEL_VENDOR_ID) {
282                p->oem_id = OEM_ID_INTEL;
283                p->type = 0xfd;
284                /* new -> subdevice into ext_type */
285                if (gdt->sc_device >= 0x600)
286                    p->ext_type = 0x6000 | gdt->sc_subdevice;
287            } else {
288                p->oem_id = OEM_ID_ICP;
289                p->type = 0xfe;
290                /* new -> subdevice into ext_type */
291                if (gdt->sc_device >= 0x300)
292                    p->ext_type = 0x6000 | gdt->sc_subdevice;
293            }
294            p->info = (gdt->sc_bus << 8) | (gdt->sc_slot << 3);
295            p->device_id = gdt->sc_device;
296            p->sub_device_id = gdt->sc_subdevice;
297            break;
298        }
299
300      case GDT_IOCTL_OSVERS:
301        {
302            gdt_osv_t *p;
303
304            p = (gdt_osv_t *)cmdarg;
305            p->oscode = 10;
306            p->version = osrelease[0] - '0';
307            if (osrelease[1] == '.')
308                p->subversion = osrelease[2] - '0';
309            else
310                p->subversion = 0;
311            if (osrelease[3] == '.')
312                p->revision = osrelease[4] - '0';
313            else
314                p->revision = 0;
315            strcpy(p->name, ostype);
316            break;
317        }
318
319      case GDT_IOCTL_CTRCNT:
320        *(int *)cmdarg = gdt_cnt;
321        break;
322
323      case GDT_IOCTL_EVENT:
324        {
325            gdt_event_t *p;
326            int lock;
327
328            p = (gdt_event_t *)cmdarg;
329            if (p->erase == 0xff) {
330                if (p->dvr.event_source == GDT_ES_TEST)
331                    p->dvr.event_data.size = sizeof(p->dvr.event_data.eu.test);
332                else if (p->dvr.event_source == GDT_ES_DRIVER)
333                    p->dvr.event_data.size= sizeof(p->dvr.event_data.eu.driver);
334                else if (p->dvr.event_source == GDT_ES_SYNC)
335                    p->dvr.event_data.size = sizeof(p->dvr.event_data.eu.sync);
336                else
337                    p->dvr.event_data.size = sizeof(p->dvr.event_data.eu.async);
338                lock = splcam();
339                gdt_store_event(p->dvr.event_source, p->dvr.event_idx,
340                                &p->dvr.event_data);
341                splx(lock);
342            } else if (p->erase == 0xfe) {
343                lock = splcam();
344                gdt_clear_events();
345                splx(lock);
346            } else if (p->erase == 0) {
347                p->handle = gdt_read_event(p->handle, &p->dvr);
348            } else {
349                gdt_readapp_event((u_int8_t)p->erase, &p->dvr);
350            }
351            break;
352        }
353
354      case GDT_IOCTL_STATIST:
355        {
356            gdt_statist_t *p;
357
358            p = (gdt_statist_t *)cmdarg;
359            bcopy(&gdt_stat, p, sizeof(gdt_statist_t));
360            break;
361        }
362
363      default:
364        break;
365    }
366
367    --gdt_stat.io_count_act;
368    return (0);
369}
370
371/*
372static void
373iir_drvinit(void *unused)
374{
375    GDT_DPRINTF(GDT_D_DEBUG, ("iir_drvinit()\n"));
376
377    if (!iir_devsw_installed) {
378        cdevsw_add(&iir_cdevsw);
379        iir_devsw_installed = 1;
380    }
381}
382
383SYSINIT(iir_dev, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, iir_drvinit, NULL)
384*/
385