irframe.c revision 1.14
1 /* $NetBSD: irframe.c,v 1.14 2001/12/26 10:56:58 augustss Exp $ */ 2 3 /* 4 * Copyright (c) 2001 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Lennart Augustsson (lennart (at) augustsson.net). 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 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. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include "irframe.h" 40 41 #include <sys/param.h> 42 #include <sys/systm.h> 43 #include <sys/ioctl.h> 44 #include <sys/kernel.h> 45 #include <sys/device.h> 46 #include <sys/conf.h> 47 #include <sys/malloc.h> 48 #include <sys/poll.h> 49 #include <sys/select.h> 50 #include <sys/vnode.h> 51 52 #include <dev/ir/ir.h> 53 #include <dev/ir/irdaio.h> 54 #include <dev/ir/irframevar.h> 55 56 #ifdef IRFRAME_DEBUG 57 #define DPRINTF(x) if (irframedebug) printf x 58 #define Static 59 int irframedebug = 0; 60 #else 61 #define DPRINTF(x) 62 #define Static static 63 #endif 64 65 cdev_decl(irframe); 66 67 int irframe_match(struct device *parent, struct cfdata *match, void *aux); 68 void irframe_attach(struct device *parent, struct device *self, void *aux); 69 int irframe_activate(struct device *self, enum devact act); 70 int irframe_detach(struct device *self, int flags); 71 72 Static int irf_set_params(struct irframe_softc *sc, struct irda_params *p); 73 Static int irf_reset_params(struct irframe_softc *sc); 74 75 #if NIRFRAME == 0 76 /* In case we just have tty attachment. */ 77 struct cfdriver irframe_cd = { 78 NULL, "irframe", DV_DULL 79 }; 80 #endif 81 82 struct cfattach irframe_ca = { 83 sizeof(struct irframe_softc), irframe_match, irframe_attach, 84 irframe_detach, irframe_activate 85 }; 86 87 extern struct cfattach irframe_ca; 88 extern struct cfdriver irframe_cd; 89 90 #define IRFRAMEUNIT(dev) (minor(dev)) 91 92 int 93 irframe_match(struct device *parent, struct cfdata *match, void *aux) 94 { 95 struct ir_attach_args *ia = aux; 96 97 return (ia->ia_type == IR_TYPE_IRFRAME); 98 } 99 100 void 101 irframe_attach(struct device *parent, struct device *self, void *aux) 102 { 103 struct irframe_softc *sc = (struct irframe_softc *)self; 104 struct ir_attach_args *ia = aux; 105 const char *delim; 106 int speeds = 0; 107 108 sc->sc_methods = ia->ia_methods; 109 sc->sc_handle = ia->ia_handle; 110 111 #ifdef DIAGNOSTIC 112 if (sc->sc_methods->im_read == NULL || 113 sc->sc_methods->im_write == NULL || 114 sc->sc_methods->im_poll == NULL || 115 sc->sc_methods->im_set_params == NULL || 116 sc->sc_methods->im_get_speeds == NULL || 117 sc->sc_methods->im_get_turnarounds == NULL) 118 panic("%s: missing methods\n", sc->sc_dev.dv_xname); 119 #endif 120 121 (void)sc->sc_methods->im_get_speeds(sc->sc_handle, &speeds); 122 sc->sc_speedmask = speeds; 123 delim = ":"; 124 if (speeds & IRDA_SPEEDS_SIR) { 125 printf("%s SIR", delim); 126 delim = ","; 127 } 128 if (speeds & IRDA_SPEEDS_MIR) { 129 printf("%s MIR", delim); 130 delim = ","; 131 } 132 if (speeds & IRDA_SPEEDS_FIR) { 133 printf("%s FIR", delim); 134 delim = ","; 135 } 136 if (speeds & IRDA_SPEEDS_VFIR) { 137 printf("%s VFIR", delim); 138 delim = ","; 139 } 140 printf("\n"); 141 } 142 143 int 144 irframe_activate(struct device *self, enum devact act) 145 { 146 /*struct irframe_softc *sc = (struct irframe_softc *)self;*/ 147 148 switch (act) { 149 case DVACT_ACTIVATE: 150 return (EOPNOTSUPP); 151 break; 152 153 case DVACT_DEACTIVATE: 154 break; 155 } 156 return (0); 157 } 158 159 int 160 irframe_detach(struct device *self, int flags) 161 { 162 /*struct irframe_softc *sc = (struct irframe_softc *)self;*/ 163 int maj, mn; 164 165 /* locate the major number */ 166 for (maj = 0; maj < nchrdev; maj++) 167 if (cdevsw[maj].d_open == irframeopen) 168 break; 169 170 /* Nuke the vnodes for any open instances (calls close). */ 171 mn = self->dv_unit; 172 vdevgone(maj, mn, mn, VCHR); 173 174 return (0); 175 } 176 177 int 178 irframeopen(dev_t dev, int flag, int mode, struct proc *p) 179 { 180 struct irframe_softc *sc; 181 int error; 182 183 sc = device_lookup(&irframe_cd, IRFRAMEUNIT(dev)); 184 if (sc == NULL) 185 return (ENXIO); 186 if ((sc->sc_dev.dv_flags & DVF_ACTIVE) == 0) 187 return (EIO); 188 if (sc->sc_open) 189 return (EBUSY); 190 if (sc->sc_methods->im_open != NULL) { 191 error = sc->sc_methods->im_open(sc->sc_handle, flag, mode, p); 192 if (error) 193 return (error); 194 } 195 sc->sc_open = 1; 196 #ifdef DIAGNOSTIC 197 sc->sc_speed = IRDA_DEFAULT_SPEED; 198 #endif 199 (void)irf_reset_params(sc); 200 return (0); 201 } 202 203 int 204 irframeclose(dev_t dev, int flag, int mode, struct proc *p) 205 { 206 struct irframe_softc *sc; 207 int error; 208 209 sc = device_lookup(&irframe_cd, IRFRAMEUNIT(dev)); 210 if (sc == NULL) 211 return (ENXIO); 212 sc->sc_open = 0; 213 if (sc->sc_methods->im_close != NULL) 214 error = sc->sc_methods->im_close(sc->sc_handle, flag, mode, p); 215 else 216 error = 0; 217 return (error); 218 } 219 220 int 221 irframeread(dev_t dev, struct uio *uio, int flag) 222 { 223 struct irframe_softc *sc; 224 225 sc = device_lookup(&irframe_cd, IRFRAMEUNIT(dev)); 226 if (sc == NULL) 227 return (ENXIO); 228 if ((sc->sc_dev.dv_flags & DVF_ACTIVE) == 0 || !sc->sc_open) 229 return (EIO); 230 if (uio->uio_resid < sc->sc_params.maxsize) { 231 #ifdef DIAGNOSTIC 232 printf("irframeread: short read %d < %d\n", uio->uio_resid, 233 sc->sc_params.maxsize); 234 #endif 235 return (EINVAL); 236 } 237 return (sc->sc_methods->im_read(sc->sc_handle, uio, flag)); 238 } 239 240 int 241 irframewrite(dev_t dev, struct uio *uio, int flag) 242 { 243 struct irframe_softc *sc; 244 245 sc = device_lookup(&irframe_cd, IRFRAMEUNIT(dev)); 246 if (sc == NULL) 247 return (ENXIO); 248 if ((sc->sc_dev.dv_flags & DVF_ACTIVE) == 0 || !sc->sc_open) 249 return (EIO); 250 if (uio->uio_resid > sc->sc_params.maxsize) { 251 #ifdef DIAGNOSTIC 252 printf("irframeread: long write %d > %d\n", uio->uio_resid, 253 sc->sc_params.maxsize); 254 #endif 255 return (EINVAL); 256 } 257 return (sc->sc_methods->im_write(sc->sc_handle, uio, flag)); 258 } 259 260 int 261 irf_set_params(struct irframe_softc *sc, struct irda_params *p) 262 { 263 int error; 264 265 DPRINTF(("irf_set_params: set params speed=%u ebofs=%u maxsize=%u " 266 "speedmask=0x%x\n", p->speed, p->ebofs, p->maxsize, 267 sc->sc_speedmask)); 268 269 if (p->maxsize > IRDA_MAX_FRAME_SIZE) { 270 #ifdef IRFRAME_DEBUG 271 printf("irf_set_params: bad maxsize=%u\n", p->maxsize); 272 #endif 273 return (EINVAL); 274 } 275 276 if (p->ebofs > IRDA_MAX_EBOFS) { 277 #ifdef IRFRAME_DEBUG 278 printf("irf_set_params: bad maxsize=%u\n", p->maxsize); 279 #endif 280 return (EINVAL); 281 } 282 283 #define CONC(x,y) x##y 284 #define CASE(s) case s: if (!(sc->sc_speedmask & CONC(IRDA_SPEED_,s))) return (EINVAL); break 285 switch (p->speed) { 286 CASE(2400); 287 CASE(9600); 288 CASE(19200); 289 CASE(38400); 290 CASE(57600); 291 CASE(115200); 292 CASE(576000); 293 CASE(1152000); 294 CASE(4000000); 295 CASE(16000000); 296 default: return (EINVAL); 297 } 298 #undef CONC 299 #undef CASE 300 301 error = sc->sc_methods->im_set_params(sc->sc_handle, p); 302 if (!error) { 303 sc->sc_params = *p; 304 DPRINTF(("irf_set_params: ok\n")); 305 #ifdef DIAGNOSTIC 306 if (p->speed != sc->sc_speed) { 307 sc->sc_speed = p->speed; 308 printf("%s: set speed %u\n", sc->sc_dev.dv_xname, 309 sc->sc_speed); 310 } 311 #endif 312 } else { 313 #ifdef IRFRAME_DEBUG 314 printf("irf_set_params: error=%d\n", error); 315 #endif 316 } 317 return (error); 318 } 319 320 int 321 irf_reset_params(struct irframe_softc *sc) 322 { 323 struct irda_params params; 324 325 params.speed = IRDA_DEFAULT_SPEED; 326 params.ebofs = IRDA_DEFAULT_EBOFS; 327 params.maxsize = IRDA_DEFAULT_SIZE; 328 return (irf_set_params(sc, ¶ms)); 329 } 330 331 int 332 irframeioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p) 333 { 334 struct irframe_softc *sc; 335 void *vaddr = addr; 336 int error; 337 338 sc = device_lookup(&irframe_cd, IRFRAMEUNIT(dev)); 339 if (sc == NULL) 340 return (ENXIO); 341 if ((sc->sc_dev.dv_flags & DVF_ACTIVE) == 0 || !sc->sc_open) 342 return (EIO); 343 344 switch (cmd) { 345 case FIONBIO: 346 /* All handled in the upper FS layer. */ 347 error = 0; 348 break; 349 350 case IRDA_SET_PARAMS: 351 error = irf_set_params(sc, vaddr); 352 break; 353 354 case IRDA_RESET_PARAMS: 355 error = irf_reset_params(sc); 356 break; 357 358 case IRDA_GET_SPEEDMASK: 359 error = sc->sc_methods->im_get_speeds(sc->sc_handle, vaddr); 360 break; 361 362 case IRDA_GET_TURNAROUNDMASK: 363 error = sc->sc_methods->im_get_turnarounds(sc->sc_handle,vaddr); 364 break; 365 366 default: 367 error = EINVAL; 368 break; 369 } 370 return (error); 371 } 372 373 int 374 irframepoll(dev_t dev, int events, struct proc *p) 375 { 376 struct irframe_softc *sc; 377 378 sc = device_lookup(&irframe_cd, IRFRAMEUNIT(dev)); 379 if (sc == NULL) 380 return (ENXIO); 381 if ((sc->sc_dev.dv_flags & DVF_ACTIVE) == 0 || !sc->sc_open) 382 return (EIO); 383 384 return (sc->sc_methods->im_poll(sc->sc_handle, events, p)); 385 } 386 387 /*********/ 388 389 390 struct device * 391 irframe_alloc(size_t size, const struct irframe_methods *m, void *h) 392 { 393 struct cfdriver *cd = &irframe_cd; 394 struct device *dev; 395 struct ir_attach_args ia; 396 int unit; 397 398 for (unit = 0; unit < cd->cd_ndevs; unit++) 399 if (cd->cd_devs[unit] == NULL) 400 break; 401 dev = malloc(size, M_DEVBUF, M_WAITOK); 402 memset(dev, 0, size); 403 snprintf(dev->dv_xname, sizeof dev->dv_xname, "irframe%d", unit); 404 dev->dv_unit = unit; 405 dev->dv_flags = DVF_ACTIVE; /* always initially active */ 406 407 config_makeroom(unit, cd); 408 cd->cd_devs[unit] = dev; 409 410 ia.ia_methods = m; 411 ia.ia_handle = h; 412 printf("%s", dev->dv_xname); 413 irframe_attach(NULL, dev, &ia); 414 415 return (dev); 416 } 417 418 void 419 irframe_dealloc(struct device *dev) 420 { 421 struct cfdriver *cd = &irframe_cd; 422 int unit; 423 424 for (unit = 0; unit < cd->cd_ndevs; unit++) { 425 if (cd->cd_devs[unit] == dev) { 426 cd->cd_devs[unit] = NULL; 427 free(dev, M_DEVBUF); 428 return; 429 } 430 } 431 panic("irframe_dealloc: device not found\n"); 432 } 433
Indexes created Wed Sep 24 05:09:52 GMT 2025