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 1.10 2006/07/28 02:17:37 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/device.h>
51 #include <sys/disklabel.h>
52 #include <sys/thread2.h>
53 #include <machine/bus.h>
55 #include <vm/vm_kern.h>
56 #include <vm/vm_extern.h>
61 /* Entry points and other prototypes */
62 static struct gdt_softc *gdt_minor2softc(int minor_no);
64 static d_open_t iir_open;
65 static d_close_t iir_close;
66 static d_write_t iir_write;
67 static d_read_t iir_read;
68 static d_ioctl_t iir_ioctl;
70 #define CDEV_MAJOR IIR_CDEV_MAJOR
72 /* Normally, this is a static structure. But we need it in pci/iir_pci.c */
73 static struct dev_ops iir_ops = {
74 { "iir", CDEV_MAJOR, 0 },
82 static int iir_devsw_installed = 0;
84 static int sdev_made = 0;
88 extern char osrelease[];
89 extern gdt_statist_t gdt_stat;
92 * Given a controller number,
93 * make a special device and return the dev_t
96 gdt_make_dev(int unit)
101 dev = make_dev(&iir_ops, hba2minor(unit), UID_ROOT, GID_OPERATOR,
102 S_IRUSR | S_IWUSR, "iir%d", unit);
106 dev = make_dev(&iir_ops, 0, UID_ROOT, GID_OPERATOR,
107 S_IRUSR | S_IWUSR, "iir");
115 gdt_destroy_dev(dev_t dev)
122 * Given a minor device number,
123 * return the pointer to its softc structure
125 static struct gdt_softc *
126 gdt_minor2softc(int minor_no)
128 struct gdt_softc *gdt;
132 hanum = minor2hba(minor_no);
137 for (gdt = TAILQ_FIRST(&gdt_softcs);
138 gdt != NULL && gdt->sc_hanum != hanum;
139 gdt = TAILQ_NEXT(gdt, links));
145 iir_open(struct dev_open_args *ap)
147 GDT_DPRINTF(GDT_D_DEBUG, ("iir_open()\n"));
151 struct gdt_softc *gdt;
153 minor_no = minor(dev);
154 gdt = gdt_minor2softc(minor_no);
163 iir_close(struct dev_close_args *ap)
165 GDT_DPRINTF(GDT_D_DEBUG, ("iir_close()\n"));
169 struct gdt_softc *gdt;
171 minor_no = minor(dev);
172 gdt = gdt_minor2softc(minor_no);
181 iir_write(struct dev_write_args *ap)
183 GDT_DPRINTF(GDT_D_DEBUG, ("iir_write()\n"));
187 struct gdt_softc *gdt;
189 minor_no = minor(dev);
190 gdt = gdt_minor2softc(minor_no);
199 iir_read(struct dev_read_args *ap)
201 GDT_DPRINTF(GDT_D_DEBUG, ("iir_read()\n"));
205 struct gdt_softc *gdt;
207 minor_no = minor(dev);
208 gdt = gdt_minor2softc(minor_no);
217 * This is the control syscall interface.
218 * It should be binary compatible with UnixWare,
219 * if not totally syntatically so.
223 iir_ioctl(struct dev_ioctl_args *ap)
225 GDT_DPRINTF(GDT_D_DEBUG, ("iir_ioctl() cmd 0x%lx\n",cmd));
229 struct gdt_softc *gdt;
231 minor_no = minor(dev);
232 gdt = gdt_minor2softc(minor_no);
236 ++gdt_stat.io_count_act;
237 if (gdt_stat.io_count_act > gdt_stat.io_count_max)
238 gdt_stat.io_count_max = gdt_stat.io_count_act;
241 case GDT_IOCTL_GENERAL:
244 struct gdt_softc *gdt;
246 ucmd = (gdt_ucmd_t *)ap->a_data;
247 gdt = gdt_minor2softc(ucmd->io_node);
251 TAILQ_INSERT_TAIL(&gdt->sc_ucmd_queue, ucmd, links);
252 ucmd->complete_flag = FALSE;
255 if (!ucmd->complete_flag)
256 (void) tsleep((void *)ucmd, PCATCH, "iirucw", 0);
260 case GDT_IOCTL_DRVERS:
262 (IIR_DRIVER_VERSION << 8) | IIR_DRIVER_SUBVERSION;
265 case GDT_IOCTL_CTRTYPE:
268 struct gdt_softc *gdt;
270 p = (gdt_ctrt_t *)ap->a_data;
271 gdt = gdt_minor2softc(p->io_node);
276 p->info = (gdt->sc_bus << 8) | (gdt->sc_slot << 3);
277 p->ext_type = 0x6000 | gdt->sc_subdevice;
278 p->device_id = gdt->sc_device;
279 p->sub_device_id = gdt->sc_subdevice;
283 case GDT_IOCTL_OSVERS:
287 p = (gdt_osv_t *)ap->a_data;
289 p->version = osrelease[0] - '0';
290 if (osrelease[1] == '.')
291 p->subversion = osrelease[2] - '0';
294 if (osrelease[3] == '.')
295 p->revision = osrelease[4] - '0';
298 strcpy(p->name, ostype);
302 case GDT_IOCTL_CTRCNT:
303 *(int *)ap->a_data = gdt_cnt;
306 case GDT_IOCTL_EVENT:
310 p = (gdt_event_t *)ap->a_data;
311 if (p->erase == 0xff) {
312 if (p->dvr.event_source == GDT_ES_TEST)
313 p->dvr.event_data.size = sizeof(p->dvr.event_data.eu.test);
314 else if (p->dvr.event_source == GDT_ES_DRIVER)
315 p->dvr.event_data.size= sizeof(p->dvr.event_data.eu.driver);
316 else if (p->dvr.event_source == GDT_ES_SYNC)
317 p->dvr.event_data.size = sizeof(p->dvr.event_data.eu.sync);
319 p->dvr.event_data.size = sizeof(p->dvr.event_data.eu.async);
321 gdt_store_event(p->dvr.event_source, p->dvr.event_idx,
324 } else if (p->erase == 0xfe) {
328 } else if (p->erase == 0) {
329 p->handle = gdt_read_event(p->handle, &p->dvr);
331 gdt_readapp_event((u_int8_t)p->erase, &p->dvr);
336 case GDT_IOCTL_STATIST:
340 p = (gdt_statist_t *)ap->a_data;
341 bcopy(&gdt_stat, p, sizeof(gdt_statist_t));
349 --gdt_stat.io_count_act;
354 iir_drvinit(void *unused)
356 GDT_DPRINTF(GDT_D_DEBUG, ("iir_drvinit()\n"));
358 if (!iir_devsw_installed) {
359 /* Add the I/O (data) channel */
360 dev_ops_add(&iir_ops, 0, 0);
361 iir_devsw_installed = 1;
365 SYSINIT(iir_dev, SI_SUB_DRIVERS, SI_ORDER_MIDDLE + CDEV_MAJOR, iir_drvinit, NULL)