1 /* $FreeBSD: src/sys/dev/iir/iir_ctrl.c,v 1.17 2005/05/06 02:32:34 cperciva 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) 2000-03 ICP vortex GmbH
5 * Copyright (c) 2002-03 Intel Corporation
6 * Copyright (c) 2003 Adaptec Inc.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions, and the following disclaimer,
14 * without modification, immediately at the beginning of the file.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. The name of the author may not be used to endorse or promote products
19 * derived from this software without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
25 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * iir_ctrl.c: Control functions and /dev entry points for /dev/iir*
37 * Written by: Achim Leubner <achim_leubner@adaptec.com>
38 * Fixes/Additions: Boji Tony Kannanthanam <boji.t.kannanthanam@intel.com>
40 * $Id: iir_ctrl.c 1.3 2003/08/26 12:31:15 achim Exp $"
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>
53 #include <sys/device.h>
54 #include <sys/thread2.h>
57 #include <vm/vm_kern.h>
58 #include <vm/vm_extern.h>
63 /* Entry points and other prototypes */
64 static struct gdt_softc *gdt_minor2softc(int minor_no);
66 static d_open_t iir_open;
67 static d_close_t iir_close;
68 static d_write_t iir_write;
69 static d_read_t iir_read;
70 static d_ioctl_t iir_ioctl;
72 #define CDEV_MAJOR IIR_CDEV_MAJOR
74 /* Normally, this is a static structure. But we need it in pci/iir_pci.c */
75 static struct dev_ops iir_ops = {
76 { "iir", CDEV_MAJOR, 0 },
84 static int iir_devsw_installed = 0;
86 static int sdev_made = 0;
90 extern char osrelease[];
91 extern gdt_statist_t gdt_stat;
94 * Given a controller number,
95 * make a special device and return the cdev_t
98 gdt_make_dev(int unit)
103 dev = make_dev(&iir_ops, hba2minor(unit), UID_ROOT, GID_OPERATOR,
104 S_IRUSR | S_IWUSR, "iir%d", unit);
108 dev = make_dev(&iir_ops, 0, UID_ROOT, GID_OPERATOR,
109 S_IRUSR | S_IWUSR, "iir");
117 gdt_destroy_dev(cdev_t dev)
124 * Given a minor device number,
125 * return the pointer to its softc structure
127 static struct gdt_softc *
128 gdt_minor2softc(int minor_no)
130 struct gdt_softc *gdt;
134 hanum = minor2hba(minor_no);
139 for (gdt = TAILQ_FIRST(&gdt_softcs);
140 gdt != NULL && gdt->sc_hanum != hanum;
141 gdt = TAILQ_NEXT(gdt, links));
147 iir_open(struct dev_open_args *ap)
149 GDT_DPRINTF(GDT_D_DEBUG, ("iir_open()\n"));
153 struct gdt_softc *gdt;
155 minor_no = minor(dev);
156 gdt = gdt_minor2softc(minor_no);
165 iir_close(struct dev_close_args *ap)
167 GDT_DPRINTF(GDT_D_DEBUG, ("iir_close()\n"));
171 struct gdt_softc *gdt;
173 minor_no = minor(dev);
174 gdt = gdt_minor2softc(minor_no);
183 iir_write(struct dev_write_args *ap)
185 GDT_DPRINTF(GDT_D_DEBUG, ("iir_write()\n"));
189 struct gdt_softc *gdt;
191 minor_no = minor(dev);
192 gdt = gdt_minor2softc(minor_no);
201 iir_read(struct dev_read_args *ap)
203 GDT_DPRINTF(GDT_D_DEBUG, ("iir_read()\n"));
207 struct gdt_softc *gdt;
209 minor_no = minor(dev);
210 gdt = gdt_minor2softc(minor_no);
219 * This is the control syscall interface.
220 * It should be binary compatible with UnixWare,
221 * if not totally syntatically so.
225 iir_ioctl(struct dev_ioctl_args *ap)
227 GDT_DPRINTF(GDT_D_DEBUG, ("iir_ioctl() cmd 0x%lx\n",cmd));
231 struct gdt_softc *gdt;
233 minor_no = minor(dev);
234 gdt = gdt_minor2softc(minor_no);
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;
243 case GDT_IOCTL_GENERAL:
246 struct gdt_softc *gdt;
248 ucmd = (gdt_ucmd_t *)ap->a_data;
249 gdt = gdt_minor2softc(ucmd->io_node);
253 TAILQ_INSERT_TAIL(&gdt->sc_ucmd_queue, ucmd, links);
254 ucmd->complete_flag = FALSE;
257 if (!ucmd->complete_flag)
258 (void) tsleep((void *)ucmd, PCATCH, "iirucw", 0);
262 case GDT_IOCTL_DRVERS:
263 case GDT_IOCTL_DRVERS_OLD:
265 (IIR_DRIVER_VERSION << 8) | IIR_DRIVER_SUBVERSION;
268 case GDT_IOCTL_CTRTYPE:
269 case GDT_IOCTL_CTRTYPE_OLD:
272 struct gdt_softc *gdt;
274 p = (gdt_ctrt_t *)ap->a_data;
275 gdt = gdt_minor2softc(p->io_node);
278 /* only RP controllers */
279 p->ext_type = 0x6000 | gdt->sc_device;
280 if (gdt->sc_vendor == INTEL_VENDOR_ID) {
281 p->oem_id = OEM_ID_INTEL;
283 /* new -> subdevice into ext_type */
284 if (gdt->sc_device >= 0x600)
285 p->ext_type = 0x6000 | gdt->sc_subdevice;
287 p->oem_id = OEM_ID_ICP;
289 /* new -> subdevice into ext_type */
290 if (gdt->sc_device >= 0x300)
291 p->ext_type = 0x6000 | gdt->sc_subdevice;
293 p->info = (gdt->sc_bus << 8) | (gdt->sc_slot << 3);
294 p->device_id = gdt->sc_device;
295 p->sub_device_id = gdt->sc_subdevice;
299 case GDT_IOCTL_OSVERS:
303 p = (gdt_osv_t *)ap->a_data;
305 p->version = osrelease[0] - '0';
306 if (osrelease[1] == '.')
307 p->subversion = osrelease[2] - '0';
310 if (osrelease[3] == '.')
311 p->revision = osrelease[4] - '0';
314 strcpy(p->name, ostype);
318 case GDT_IOCTL_CTRCNT:
319 *(int *)ap->a_data = gdt_cnt;
322 case GDT_IOCTL_EVENT:
326 p = (gdt_event_t *)ap->a_data;
327 if (p->erase == 0xff) {
328 if (p->dvr.event_source == GDT_ES_TEST)
329 p->dvr.event_data.size = sizeof(p->dvr.event_data.eu.test);
330 else if (p->dvr.event_source == GDT_ES_DRIVER)
331 p->dvr.event_data.size= sizeof(p->dvr.event_data.eu.driver);
332 else if (p->dvr.event_source == GDT_ES_SYNC)
333 p->dvr.event_data.size = sizeof(p->dvr.event_data.eu.sync);
335 p->dvr.event_data.size = sizeof(p->dvr.event_data.eu.async);
337 gdt_store_event(p->dvr.event_source, p->dvr.event_idx,
340 } else if (p->erase == 0xfe) {
344 } else if (p->erase == 0) {
345 p->handle = gdt_read_event(p->handle, &p->dvr);
347 gdt_readapp_event((u_int8_t)p->erase, &p->dvr);
352 case GDT_IOCTL_STATIST:
356 p = (gdt_statist_t *)ap->a_data;
357 bcopy(&gdt_stat, p, sizeof(gdt_statist_t));
365 --gdt_stat.io_count_act;
370 iir_drvinit(void *unused)
372 GDT_DPRINTF(GDT_D_DEBUG, ("iir_drvinit()\n"));
374 if (!iir_devsw_installed) {
375 /* Add the I/O (data) channel */
376 dev_ops_add(&iir_ops, 0, 0);
377 iir_devsw_installed = 1;
381 SYSINIT(iir_dev, SI_SUB_DRIVERS, SI_ORDER_MIDDLE + CDEV_MAJOR, iir_drvinit, NULL)