1/* $FreeBSD: head/sys/dev/iir/iir_ctrl.c 111745 2003-03-02 16:44:46Z phk $ */
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1/* $FreeBSD: head/sys/dev/iir/iir_ctrl.c 111815 2003-03-03 12:15:54Z phk $ */ |
2/* 3 * Copyright (c) 2000-01 Intel Corporation 4 * All Rights Reserved 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions, and the following disclaimer, 11 * without modification, immediately at the beginning of the file. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 22 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31/* 32 * iir_ctrl.c: Control functions and /dev entry points for /dev/iir* 33 * 34 * Written by: Achim Leubner <achim.leubner@intel.com> 35 * Fixes/Additions: Boji Tony Kannanthanam <boji.t.kannanthanam@intel.com> 36 * 37 * TODO: 38 */ 39 40#ident "$Id: iir_ctrl.c 1.2 2001/07/18 11:17:22 achim Exp $" 41 42#include <sys/param.h> 43#include <sys/systm.h> 44#include <sys/endian.h> 45#include <sys/malloc.h> 46#include <sys/kernel.h> 47#include <sys/uio.h> 48#include <sys/conf.h> 49#include <sys/stat.h> 50#include <sys/ioccom.h> 51#include <machine/bus.h> 52#include <vm/vm.h> 53#include <vm/vm_kern.h> 54#include <vm/vm_extern.h> 55#include <vm/pmap.h> 56 57#include <dev/iir/iir.h> 58 59/* Entry points and other prototypes */ 60static struct gdt_softc *gdt_minor2softc(int minor_no); 61 62static d_open_t iir_open; 63static d_close_t iir_close; 64static d_write_t iir_write; 65static d_read_t iir_read; 66static d_ioctl_t iir_ioctl; 67 68#define CDEV_MAJOR IIR_CDEV_MAJOR 69 70/* Normally, this is a static structure. But we need it in pci/iir_pci.c */ 71static struct cdevsw iir_cdevsw = {
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72 /* open */ iir_open,
73 /* close */ iir_close,
74 /* read */ iir_read,
75 /* write */ iir_write,
76 /* ioctl */ iir_ioctl,
77 /* poll */ nopoll,
78 /* mmap */ nommap,
79 /* strategy */ nostrategy,
80 /* name */ "iir",
81 /* maj */ CDEV_MAJOR,
82 /* dump */ nodump,
83 /* psize */ nopsize,
84 /* flags */ 0,
85 /* kqfilter */ nokqfilter
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72 .d_open = iir_open, 73 .d_close = iir_close, 74 .d_read = iir_read, 75 .d_write = iir_write, 76 .d_ioctl = iir_ioctl, 77 .d_name = "iir", 78 .d_maj = CDEV_MAJOR, |
79}; 80 81#ifndef SDEV_PER_HBA 82static int sdev_made = 0; 83#endif 84extern int gdt_cnt; 85extern char ostype[]; 86extern char osrelease[]; 87extern gdt_statist_t gdt_stat; 88 89/* 90 * Given a controller number, 91 * make a special device and return the dev_t 92 */ 93dev_t 94gdt_make_dev(int unit) 95{ 96 dev_t dev; 97 98#ifdef SDEV_PER_HBA 99 dev = make_dev(&iir_cdevsw, hba2minor(unit), UID_ROOT, GID_OPERATOR, 100 S_IRUSR | S_IWUSR | S_IRGRP, "iir%d", unit); 101#else 102 if (sdev_made) 103 return (0); 104 dev = make_dev(&iir_cdevsw, 0, UID_ROOT, GID_OPERATOR, 105 S_IRUSR | S_IWUSR | S_IRGRP, "iir"); 106 sdev_made = 1; 107#endif 108 return (dev); 109} 110 111void 112gdt_destroy_dev(dev_t dev) 113{ 114 if (dev != NULL) 115 destroy_dev(dev); 116} 117 118/* 119 * Given a minor device number, 120 * return the pointer to its softc structure 121 */ 122static struct gdt_softc * 123gdt_minor2softc(int minor_no) 124{ 125 struct gdt_softc *gdt; 126 int hanum; 127 128#ifdef SDEV_PER_HBA 129 hanum = minor2hba(minor_no); 130#else 131 hanum = minor_no; 132#endif 133 134 for (gdt = TAILQ_FIRST(&gdt_softcs); 135 gdt != NULL && gdt->sc_hanum != hanum; 136 gdt = TAILQ_NEXT(gdt, links)); 137 138 return (gdt); 139} 140 141static int 142iir_open(dev_t dev, int flags, int fmt, d_thread_t * p) 143{ 144 GDT_DPRINTF(GDT_D_DEBUG, ("iir_open()\n")); 145 146#ifdef SDEV_PER_HBA 147 int minor_no; 148 struct gdt_softc *gdt; 149 150 minor_no = minor(dev); 151 gdt = gdt_minor2softc(minor_no); 152 if (gdt == NULL) 153 return (ENXIO); 154#endif 155 156 return (0); 157} 158 159static int 160iir_close(dev_t dev, int flags, int fmt, d_thread_t * p) 161{ 162 GDT_DPRINTF(GDT_D_DEBUG, ("iir_close()\n")); 163 164#ifdef SDEV_PER_HBA 165 int minor_no; 166 struct gdt_softc *gdt; 167 168 minor_no = minor(dev); 169 gdt = gdt_minor2softc(minor_no); 170 if (gdt == NULL) 171 return (ENXIO); 172#endif 173 174 return (0); 175} 176 177static int 178iir_write(dev_t dev, struct uio * uio, int ioflag) 179{ 180 GDT_DPRINTF(GDT_D_DEBUG, ("iir_write()\n")); 181 182#ifdef SDEV_PER_HBA 183 int minor_no; 184 struct gdt_softc *gdt; 185 186 minor_no = minor(dev); 187 gdt = gdt_minor2softc(minor_no); 188 if (gdt == NULL) 189 return (ENXIO); 190#endif 191 192 return (0); 193} 194 195static int 196iir_read(dev_t dev, struct uio * uio, int ioflag) 197{ 198 GDT_DPRINTF(GDT_D_DEBUG, ("iir_read()\n")); 199 200#ifdef SDEV_PER_HBA 201 int minor_no; 202 struct gdt_softc *gdt; 203 204 minor_no = minor(dev); 205 gdt = gdt_minor2softc(minor_no); 206 if (gdt == NULL) 207 return (ENXIO); 208#endif 209 210 return (0); 211} 212 213/** 214 * This is the control syscall interface. 215 * It should be binary compatible with UnixWare, 216 * if not totally syntatically so. 217 */ 218 219static int 220iir_ioctl(dev_t dev, u_long cmd, caddr_t cmdarg, int flags, d_thread_t * p) 221{ 222 GDT_DPRINTF(GDT_D_DEBUG, ("iir_ioctl() cmd 0x%lx\n",cmd)); 223 224#ifdef SDEV_PER_HBA 225 int minor_no; 226 struct gdt_softc *gdt; 227 228 minor_no = minor(dev); 229 gdt = gdt_minor2softc(minor_no); 230 if (gdt == NULL) 231 return (ENXIO); 232#endif 233 ++gdt_stat.io_count_act; 234 if (gdt_stat.io_count_act > gdt_stat.io_count_max) 235 gdt_stat.io_count_max = gdt_stat.io_count_act; 236 237 switch (cmd) { 238 case GDT_IOCTL_GENERAL: 239 { 240 gdt_ucmd_t *ucmd; 241 struct gdt_softc *gdt; 242 int lock; 243 244 ucmd = (gdt_ucmd_t *)cmdarg; 245 gdt = gdt_minor2softc(ucmd->io_node); 246 if (gdt == NULL) 247 return (ENXIO); 248 lock = splcam(); 249 TAILQ_INSERT_TAIL(&gdt->sc_ucmd_queue, ucmd, links); 250 ucmd->complete_flag = FALSE; 251 splx(lock); 252 gdt_next(gdt); 253 if (!ucmd->complete_flag) 254 (void) tsleep((void *)ucmd, PCATCH | PRIBIO, "iirucw", 0); 255 break; 256 } 257 258 case GDT_IOCTL_DRVERS: 259 *(int *)cmdarg = 260 (IIR_DRIVER_VERSION << 8) | IIR_DRIVER_SUBVERSION; 261 break; 262 263 case GDT_IOCTL_CTRTYPE: 264 { 265 gdt_ctrt_t *p; 266 struct gdt_softc *gdt; 267 268 p = (gdt_ctrt_t *)cmdarg; 269 gdt = gdt_minor2softc(p->io_node); 270 if (gdt == NULL) 271 return (ENXIO); 272 p->oem_id = 0x8000; 273 p->type = 0xfd; 274 p->info = (gdt->sc_bus << 8) | (gdt->sc_slot << 3); 275 p->ext_type = 0x6000 | gdt->sc_subdevice; 276 p->device_id = gdt->sc_device; 277 p->sub_device_id = gdt->sc_subdevice; 278 break; 279 } 280 281 case GDT_IOCTL_OSVERS: 282 { 283 gdt_osv_t *p; 284 285 p = (gdt_osv_t *)cmdarg; 286 p->oscode = 10; 287 p->version = osrelease[0] - '0'; 288 if (osrelease[1] == '.') 289 p->subversion = osrelease[2] - '0'; 290 else 291 p->subversion = 0; 292 if (osrelease[3] == '.') 293 p->revision = osrelease[4] - '0'; 294 else 295 p->revision = 0; 296 strcpy(p->name, ostype); 297 break; 298 } 299 300 case GDT_IOCTL_CTRCNT: 301 *(int *)cmdarg = gdt_cnt; 302 break; 303 304 case GDT_IOCTL_EVENT: 305 { 306 gdt_event_t *p; 307 int lock; 308 309 p = (gdt_event_t *)cmdarg; 310 if (p->erase == 0xff) { 311 if (p->dvr.event_source == GDT_ES_TEST) 312 p->dvr.event_data.size = sizeof(p->dvr.event_data.eu.test); 313 else if (p->dvr.event_source == GDT_ES_DRIVER) 314 p->dvr.event_data.size= sizeof(p->dvr.event_data.eu.driver); 315 else if (p->dvr.event_source == GDT_ES_SYNC) 316 p->dvr.event_data.size = sizeof(p->dvr.event_data.eu.sync); 317 else 318 p->dvr.event_data.size = sizeof(p->dvr.event_data.eu.async); 319 lock = splcam(); 320 gdt_store_event(p->dvr.event_source, p->dvr.event_idx, 321 &p->dvr.event_data); 322 splx(lock); 323 } else if (p->erase == 0xfe) { 324 lock = splcam(); 325 gdt_clear_events(); 326 splx(lock); 327 } else if (p->erase == 0) { 328 p->handle = gdt_read_event(p->handle, &p->dvr); 329 } else { 330 gdt_readapp_event((u_int8_t)p->erase, &p->dvr); 331 } 332 break; 333 } 334 335 case GDT_IOCTL_STATIST: 336 { 337 gdt_statist_t *p; 338 339 p = (gdt_statist_t *)cmdarg; 340 bcopy(&gdt_stat, p, sizeof(gdt_statist_t)); 341 break; 342 } 343 344 default: 345 break; 346 } 347 348 --gdt_stat.io_count_act; 349 return (0); 350}
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