1 /* $FreeBSD: src/sys/dev/iir/iir_ctrl.c,v 1.2.2.4 2002/05/05 08:18:12 asmodai Exp $ */
2 /* $DragonFly: src/sys/dev/raid/iir/iir_ctrl.c,v 1.2 2003/06/17 04:28:27 dillon Exp $ */
4 * Copyright (c) 2000-01 Intel Corporation
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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.
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
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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
33 * iir_ctrl.c: Control functions and /dev entry points for /dev/iir*
35 * Written by: Achim Leubner <achim.leubner@intel.com>
36 * Fixes/Additions: Boji Tony Kannanthanam <boji.t.kannanthanam@intel.com>
41 #ident "$Id: iir_ctrl.c 1.2 2001/07/18 11:17:22 achim Exp $"
43 #include <sys/param.h>
44 #include <sys/systm.h>
45 #include <sys/malloc.h>
46 #include <sys/kernel.h>
50 #include <sys/disklabel.h>
51 #include <machine/bus.h>
53 #include <vm/vm_kern.h>
54 #include <vm/vm_extern.h>
57 #include <dev/iir/iir.h>
59 /* Entry points and other prototypes */
60 static struct gdt_softc *gdt_minor2softc(int minor_no);
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;
68 #define CDEV_MAJOR IIR_CDEV_MAJOR
70 /* Normally, this is a static structure. But we need it in pci/iir_pci.c */
71 static struct cdevsw iir_cdevsw = {
73 /* close */ iir_close,
75 /* write */ iir_write,
76 /* ioctl */ iir_ioctl,
79 /* strategy */ nostrategy,
88 static int iir_devsw_installed = 0;
90 static int sdev_made = 0;
94 extern char osrelease[];
95 extern gdt_statist_t gdt_stat;
98 * Given a controller number,
99 * make a special device and return the dev_t
102 gdt_make_dev(int unit)
107 dev = make_dev(&iir_cdevsw, hba2minor(unit), UID_ROOT, GID_OPERATOR,
108 S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH, "iir%d", unit);
112 dev = make_dev(&iir_cdevsw, 0, UID_ROOT, GID_OPERATOR,
113 S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH, "iir");
120 gdt_destroy_dev(dev_t dev)
127 * Given a minor device number,
128 * return the pointer to its softc structure
130 static struct gdt_softc *
131 gdt_minor2softc(int minor_no)
133 struct gdt_softc *gdt;
137 hanum = minor2hba(minor_no);
142 for (gdt = TAILQ_FIRST(&gdt_softcs);
143 gdt != NULL && gdt->sc_hanum != hanum;
144 gdt = TAILQ_NEXT(gdt, links));
150 iir_open(dev_t dev, int flags, int fmt, d_thread_t * p)
152 GDT_DPRINTF(GDT_D_DEBUG, ("iir_open()\n"));
156 struct gdt_softc *gdt;
158 minor_no = minor(dev);
159 gdt = gdt_minor2softc(minor_no);
168 iir_close(dev_t dev, int flags, int fmt, d_thread_t * p)
170 GDT_DPRINTF(GDT_D_DEBUG, ("iir_close()\n"));
174 struct gdt_softc *gdt;
176 minor_no = minor(dev);
177 gdt = gdt_minor2softc(minor_no);
186 iir_write(dev_t dev, struct uio * uio, int ioflag)
188 GDT_DPRINTF(GDT_D_DEBUG, ("iir_write()\n"));
192 struct gdt_softc *gdt;
194 minor_no = minor(dev);
195 gdt = gdt_minor2softc(minor_no);
204 iir_read(dev_t dev, struct uio * uio, int ioflag)
206 GDT_DPRINTF(GDT_D_DEBUG, ("iir_read()\n"));
210 struct gdt_softc *gdt;
212 minor_no = minor(dev);
213 gdt = gdt_minor2softc(minor_no);
222 * This is the control syscall interface.
223 * It should be binary compatible with UnixWare,
224 * if not totally syntatically so.
228 iir_ioctl(dev_t dev, u_long cmd, caddr_t cmdarg, int flags, d_thread_t * p)
230 GDT_DPRINTF(GDT_D_DEBUG, ("iir_ioctl() cmd 0x%lx\n",cmd));
234 struct gdt_softc *gdt;
236 minor_no = minor(dev);
237 gdt = gdt_minor2softc(minor_no);
241 ++gdt_stat.io_count_act;
242 if (gdt_stat.io_count_act > gdt_stat.io_count_max)
243 gdt_stat.io_count_max = gdt_stat.io_count_act;
246 case GDT_IOCTL_GENERAL:
249 struct gdt_softc *gdt;
252 ucmd = (gdt_ucmd_t *)cmdarg;
253 gdt = gdt_minor2softc(ucmd->io_node);
257 TAILQ_INSERT_TAIL(&gdt->sc_ucmd_queue, ucmd, links);
258 ucmd->complete_flag = FALSE;
261 if (!ucmd->complete_flag)
262 (void) tsleep((void *)ucmd, PCATCH | PRIBIO, "iirucw", 0);
266 case GDT_IOCTL_DRVERS:
268 (IIR_DRIVER_VERSION << 8) | IIR_DRIVER_SUBVERSION;
271 case GDT_IOCTL_CTRTYPE:
274 struct gdt_softc *gdt;
276 p = (gdt_ctrt_t *)cmdarg;
277 gdt = gdt_minor2softc(p->io_node);
282 p->info = (gdt->sc_bus << 8) | (gdt->sc_slot << 3);
283 p->ext_type = 0x6000 | gdt->sc_subdevice;
284 p->device_id = gdt->sc_device;
285 p->sub_device_id = gdt->sc_subdevice;
289 case GDT_IOCTL_OSVERS:
293 p = (gdt_osv_t *)cmdarg;
295 p->version = osrelease[0] - '0';
296 if (osrelease[1] == '.')
297 p->subversion = osrelease[2] - '0';
300 if (osrelease[3] == '.')
301 p->revision = osrelease[4] - '0';
304 strcpy(p->name, ostype);
308 case GDT_IOCTL_CTRCNT:
309 *(int *)cmdarg = gdt_cnt;
312 case GDT_IOCTL_EVENT:
317 p = (gdt_event_t *)cmdarg;
318 if (p->erase == 0xff) {
319 if (p->dvr.event_source == GDT_ES_TEST)
320 p->dvr.event_data.size = sizeof(p->dvr.event_data.eu.test);
321 else if (p->dvr.event_source == GDT_ES_DRIVER)
322 p->dvr.event_data.size= sizeof(p->dvr.event_data.eu.driver);
323 else if (p->dvr.event_source == GDT_ES_SYNC)
324 p->dvr.event_data.size = sizeof(p->dvr.event_data.eu.sync);
326 p->dvr.event_data.size = sizeof(p->dvr.event_data.eu.async);
328 gdt_store_event(p->dvr.event_source, p->dvr.event_idx,
331 } else if (p->erase == 0xfe) {
335 } else if (p->erase == 0) {
336 p->handle = gdt_read_event(p->handle, &p->dvr);
338 gdt_readapp_event((u_int8_t)p->erase, &p->dvr);
343 case GDT_IOCTL_STATIST:
347 p = (gdt_statist_t *)cmdarg;
348 bcopy(&gdt_stat, p, sizeof(gdt_statist_t));
356 --gdt_stat.io_count_act;
361 iir_drvinit(void *unused)
363 GDT_DPRINTF(GDT_D_DEBUG, ("iir_drvinit()\n"));
365 if (!iir_devsw_installed) {
366 /* Add the I/O (data) channel */
367 cdevsw_add(&iir_cdevsw);
368 iir_devsw_installed = 1;
372 SYSINIT(iir_dev, SI_SUB_DRIVERS, SI_ORDER_MIDDLE + CDEV_MAJOR, iir_drvinit, NULL)