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 1.13 2007/05/17 21:08:49 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>
51 #include <sys/device.h>
52 #include <sys/ioccom.h>
53 #include <sys/thread2.h>
56 #include <vm/vm_kern.h>
57 #include <vm/vm_extern.h>
62 /* Entry points and other prototypes */
63 static struct gdt_softc *gdt_minor2softc(int minor_no);
65 static d_open_t iir_open;
66 static d_close_t iir_close;
67 static d_write_t iir_write;
68 static d_read_t iir_read;
69 static d_ioctl_t iir_ioctl;
71 #define CDEV_MAJOR IIR_CDEV_MAJOR
73 /* Normally, this is a static structure. But we need it in pci/iir_pci.c */
74 static struct dev_ops iir_ops = {
75 { "iir", CDEV_MAJOR, 0 },
83 static int iir_devsw_installed = 0;
85 static int sdev_made = 0;
89 extern char osrelease[];
90 extern gdt_statist_t gdt_stat;
93 * Given a controller number,
94 * make a special device and return the cdev_t
97 gdt_make_dev(int unit)
102 dev = make_dev(&iir_ops, hba2minor(unit), UID_ROOT, GID_OPERATOR,
103 S_IRUSR | S_IWUSR, "iir%d", unit);
107 dev = make_dev(&iir_ops, 0, UID_ROOT, GID_OPERATOR,
108 S_IRUSR | S_IWUSR, "iir");
116 gdt_destroy_dev(cdev_t dev)
123 * Given a minor device number,
124 * return the pointer to its softc structure
126 static struct gdt_softc *
127 gdt_minor2softc(int minor_no)
129 struct gdt_softc *gdt;
133 hanum = minor2hba(minor_no);
138 for (gdt = TAILQ_FIRST(&gdt_softcs);
139 gdt != NULL && gdt->sc_hanum != hanum;
140 gdt = TAILQ_NEXT(gdt, links));
146 iir_open(struct dev_open_args *ap)
148 GDT_DPRINTF(GDT_D_DEBUG, ("iir_open()\n"));
152 struct gdt_softc *gdt;
154 minor_no = minor(dev);
155 gdt = gdt_minor2softc(minor_no);
164 iir_close(struct dev_close_args *ap)
166 GDT_DPRINTF(GDT_D_DEBUG, ("iir_close()\n"));
170 struct gdt_softc *gdt;
172 minor_no = minor(dev);
173 gdt = gdt_minor2softc(minor_no);
182 iir_write(struct dev_write_args *ap)
184 GDT_DPRINTF(GDT_D_DEBUG, ("iir_write()\n"));
188 struct gdt_softc *gdt;
190 minor_no = minor(dev);
191 gdt = gdt_minor2softc(minor_no);
200 iir_read(struct dev_read_args *ap)
202 GDT_DPRINTF(GDT_D_DEBUG, ("iir_read()\n"));
206 struct gdt_softc *gdt;
208 minor_no = minor(dev);
209 gdt = gdt_minor2softc(minor_no);
218 * This is the control syscall interface.
219 * It should be binary compatible with UnixWare,
220 * if not totally syntatically so.
224 iir_ioctl(struct dev_ioctl_args *ap)
226 GDT_DPRINTF(GDT_D_DEBUG, ("iir_ioctl() cmd 0x%lx\n",cmd));
230 struct gdt_softc *gdt;
232 minor_no = minor(dev);
233 gdt = gdt_minor2softc(minor_no);
237 ++gdt_stat.io_count_act;
238 if (gdt_stat.io_count_act > gdt_stat.io_count_max)
239 gdt_stat.io_count_max = gdt_stat.io_count_act;
242 case GDT_IOCTL_GENERAL:
245 struct gdt_softc *gdt;
247 ucmd = (gdt_ucmd_t *)ap->a_data;
248 gdt = gdt_minor2softc(ucmd->io_node);
252 TAILQ_INSERT_TAIL(&gdt->sc_ucmd_queue, ucmd, links);
253 ucmd->complete_flag = FALSE;
256 if (!ucmd->complete_flag)
257 (void) tsleep((void *)ucmd, PCATCH, "iirucw", 0);
261 case GDT_IOCTL_DRVERS:
263 (IIR_DRIVER_VERSION << 8) | IIR_DRIVER_SUBVERSION;
266 case GDT_IOCTL_CTRTYPE:
269 struct gdt_softc *gdt;
271 p = (gdt_ctrt_t *)ap->a_data;
272 gdt = gdt_minor2softc(p->io_node);
277 p->info = (gdt->sc_bus << 8) | (gdt->sc_slot << 3);
278 p->ext_type = 0x6000 | gdt->sc_subdevice;
279 p->device_id = gdt->sc_device;
280 p->sub_device_id = gdt->sc_subdevice;
284 case GDT_IOCTL_OSVERS:
288 p = (gdt_osv_t *)ap->a_data;
290 p->version = osrelease[0] - '0';
291 if (osrelease[1] == '.')
292 p->subversion = osrelease[2] - '0';
295 if (osrelease[3] == '.')
296 p->revision = osrelease[4] - '0';
299 strcpy(p->name, ostype);
303 case GDT_IOCTL_CTRCNT:
304 *(int *)ap->a_data = gdt_cnt;
307 case GDT_IOCTL_EVENT:
311 p = (gdt_event_t *)ap->a_data;
312 if (p->erase == 0xff) {
313 if (p->dvr.event_source == GDT_ES_TEST)
314 p->dvr.event_data.size = sizeof(p->dvr.event_data.eu.test);
315 else if (p->dvr.event_source == GDT_ES_DRIVER)
316 p->dvr.event_data.size= sizeof(p->dvr.event_data.eu.driver);
317 else if (p->dvr.event_source == GDT_ES_SYNC)
318 p->dvr.event_data.size = sizeof(p->dvr.event_data.eu.sync);
320 p->dvr.event_data.size = sizeof(p->dvr.event_data.eu.async);
322 gdt_store_event(p->dvr.event_source, p->dvr.event_idx,
325 } else if (p->erase == 0xfe) {
329 } else if (p->erase == 0) {
330 p->handle = gdt_read_event(p->handle, &p->dvr);
332 gdt_readapp_event((u_int8_t)p->erase, &p->dvr);
337 case GDT_IOCTL_STATIST:
341 p = (gdt_statist_t *)ap->a_data;
342 bcopy(&gdt_stat, p, sizeof(gdt_statist_t));
350 --gdt_stat.io_count_act;
355 iir_drvinit(void *unused)
357 GDT_DPRINTF(GDT_D_DEBUG, ("iir_drvinit()\n"));
359 if (!iir_devsw_installed) {
360 /* Add the I/O (data) channel */
361 dev_ops_add(&iir_ops, 0, 0);
362 iir_devsw_installed = 1;
366 SYSINIT(iir_dev, SI_SUB_DRIVERS, SI_ORDER_MIDDLE + CDEV_MAJOR, iir_drvinit, NULL)