| 1 | /* $NetBSD: irmce.c,v 1.2 2016/04/23 10:15:32 skrll Exp $ */ |
| 2 | |
| 3 | /*- |
| 4 | * Copyright (c) 2011 Jared D. McNeill <jmcneill@invisible.ca> |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * Redistribution and use in source and binary forms, with or without |
| 8 | * modification, are permitted provided that the following conditions |
| 9 | * are met: |
| 10 | * 1. Redistributions of source code must retain the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer. |
| 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 | * |
| 16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' |
| 17 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| 18 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 19 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
| 20 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 26 | * POSSIBILITY OF SUCH DAMAGE. |
| 27 | */ |
| 28 | |
| 29 | /* |
| 30 | * IR receiver/transceiver for Windows Media Center |
| 31 | */ |
| 32 | |
| 33 | #include <sys/cdefs.h> |
| 34 | __KERNEL_RCSID(0, "$NetBSD: irmce.c,v 1.2 2016/04/23 10:15:32 skrll Exp $" ); |
| 35 | |
| 36 | #include <sys/types.h> |
| 37 | #include <sys/param.h> |
| 38 | #include <sys/systm.h> |
| 39 | #include <sys/device.h> |
| 40 | #include <sys/conf.h> |
| 41 | #include <sys/bus.h> |
| 42 | #include <sys/select.h> |
| 43 | #include <sys/module.h> |
| 44 | |
| 45 | #include <dev/usb/usb.h> |
| 46 | #include <dev/usb/usbdi.h> |
| 47 | #include <dev/usb/usbdi_util.h> |
| 48 | #include <dev/usb/usbdevs.h> |
| 49 | |
| 50 | #include <dev/ir/ir.h> |
| 51 | #include <dev/ir/cirio.h> |
| 52 | #include <dev/ir/cirvar.h> |
| 53 | |
| 54 | enum irmce_state { |
| 55 | , |
| 56 | IRMCE_STATE_IRDATA, |
| 57 | , |
| 58 | IRMCE_STATE_CMDDATA, |
| 59 | }; |
| 60 | |
| 61 | struct irmce_softc { |
| 62 | device_t sc_dev; |
| 63 | device_t sc_cirdev; |
| 64 | |
| 65 | struct usbd_device * sc_udev; |
| 66 | struct usbd_interface * sc_iface; |
| 67 | |
| 68 | int sc_bulkin_ep; |
| 69 | uint16_t sc_bulkin_maxpktsize; |
| 70 | struct usbd_pipe * sc_bulkin_pipe; |
| 71 | struct usbd_xfer * sc_bulkin_xfer; |
| 72 | uint8_t * sc_bulkin_buffer; |
| 73 | |
| 74 | int sc_bulkout_ep; |
| 75 | uint16_t sc_bulkout_maxpktsize; |
| 76 | struct usbd_pipe * sc_bulkout_pipe; |
| 77 | struct usbd_xfer * sc_bulkout_xfer; |
| 78 | uint8_t * sc_bulkout_buffer; |
| 79 | |
| 80 | bool sc_raw; |
| 81 | |
| 82 | uint8_t sc_ir_buf[16]; |
| 83 | size_t sc_ir_bufused; |
| 84 | size_t sc_ir_resid; |
| 85 | enum irmce_state sc_ir_state; |
| 86 | uint8_t ; |
| 87 | |
| 88 | bool sc_rc6_hb[256]; |
| 89 | size_t sc_rc6_nhb; |
| 90 | }; |
| 91 | |
| 92 | static int irmce_match(device_t, cfdata_t, void *); |
| 93 | static void irmce_attach(device_t, device_t, void *); |
| 94 | static int irmce_detach(device_t, int); |
| 95 | static void irmce_childdet(device_t, device_t); |
| 96 | static int irmce_activate(device_t, enum devact); |
| 97 | static int irmce_rescan(device_t, const char *, const int *); |
| 98 | |
| 99 | static int irmce_print(void *, const char *); |
| 100 | |
| 101 | static int irmce_reset(struct irmce_softc *); |
| 102 | |
| 103 | static int irmce_open(void *, int, int, struct proc *); |
| 104 | static int irmce_close(void *, int, int, struct proc *); |
| 105 | static int irmce_read(void *, struct uio *, int); |
| 106 | static int irmce_write(void *, struct uio *, int); |
| 107 | static int irmce_setparams(void *, struct cir_params *); |
| 108 | |
| 109 | static const struct cir_methods irmce_cir_methods = { |
| 110 | .im_open = irmce_open, |
| 111 | .im_close = irmce_close, |
| 112 | .im_read = irmce_read, |
| 113 | .im_write = irmce_write, |
| 114 | .im_setparams = irmce_setparams, |
| 115 | }; |
| 116 | |
| 117 | static const struct { |
| 118 | uint16_t vendor; |
| 119 | uint16_t product; |
| 120 | } irmce_devices[] = { |
| 121 | { USB_VENDOR_SMK, USB_PRODUCT_SMK_MCE_IR }, |
| 122 | }; |
| 123 | |
| 124 | CFATTACH_DECL2_NEW(irmce, sizeof(struct irmce_softc), |
| 125 | irmce_match, irmce_attach, irmce_detach, irmce_activate, |
| 126 | irmce_rescan, irmce_childdet); |
| 127 | |
| 128 | static int |
| 129 | irmce_match(device_t parent, cfdata_t match, void *opaque) |
| 130 | { |
| 131 | struct usbif_attach_arg *uiaa = opaque; |
| 132 | unsigned int i; |
| 133 | |
| 134 | for (i = 0; i < __arraycount(irmce_devices); i++) { |
| 135 | if (irmce_devices[i].vendor == uiaa->uiaa_vendor && |
| 136 | irmce_devices[i].product == uiaa->uiaa_product) |
| 137 | return UMATCH_VENDOR_PRODUCT; |
| 138 | } |
| 139 | |
| 140 | return UMATCH_NONE; |
| 141 | } |
| 142 | |
| 143 | static void |
| 144 | irmce_attach(device_t parent, device_t self, void *opaque) |
| 145 | { |
| 146 | struct irmce_softc *sc = device_private(self); |
| 147 | struct usbif_attach_arg *uiaa = opaque; |
| 148 | usb_endpoint_descriptor_t *ed; |
| 149 | char *devinfop; |
| 150 | unsigned int i; |
| 151 | uint8_t nep; |
| 152 | |
| 153 | pmf_device_register(self, NULL, NULL); |
| 154 | |
| 155 | aprint_naive("\n" ); |
| 156 | |
| 157 | devinfop = usbd_devinfo_alloc(uiaa->uiaa_device, 0); |
| 158 | aprint_normal(": %s\n" , devinfop); |
| 159 | usbd_devinfo_free(devinfop); |
| 160 | |
| 161 | sc->sc_dev = self; |
| 162 | sc->sc_udev = uiaa->uiaa_device; |
| 163 | sc->sc_iface = uiaa->uiaa_iface; |
| 164 | |
| 165 | nep = 0; |
| 166 | usbd_endpoint_count(sc->sc_iface, &nep); |
| 167 | sc->sc_bulkin_ep = sc->sc_bulkout_ep = -1; |
| 168 | for (i = 0; i < nep; i++) { |
| 169 | int dir, type; |
| 170 | |
| 171 | ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i); |
| 172 | if (ed == NULL) { |
| 173 | aprint_error_dev(self, |
| 174 | "couldn't read endpoint descriptor %d\n" , i); |
| 175 | continue; |
| 176 | } |
| 177 | |
| 178 | dir = UE_GET_DIR(ed->bEndpointAddress); |
| 179 | type = UE_GET_XFERTYPE(ed->bmAttributes); |
| 180 | |
| 181 | if (type != UE_BULK) |
| 182 | continue; |
| 183 | |
| 184 | if (dir == UE_DIR_IN && sc->sc_bulkin_ep == -1) { |
| 185 | sc->sc_bulkin_ep = ed->bEndpointAddress; |
| 186 | sc->sc_bulkin_maxpktsize = |
| 187 | UE_GET_SIZE(UGETW(ed->wMaxPacketSize)) * |
| 188 | (UE_GET_TRANS(UGETW(ed->wMaxPacketSize)) + 1); |
| 189 | } |
| 190 | if (dir == UE_DIR_OUT && sc->sc_bulkout_ep == -1) { |
| 191 | sc->sc_bulkout_ep = ed->bEndpointAddress; |
| 192 | sc->sc_bulkout_maxpktsize = |
| 193 | UE_GET_SIZE(UGETW(ed->wMaxPacketSize)) * |
| 194 | (UE_GET_TRANS(UGETW(ed->wMaxPacketSize)) + 1); |
| 195 | } |
| 196 | } |
| 197 | |
| 198 | aprint_debug_dev(self, "in 0x%02x/%d out 0x%02x/%d\n" , |
| 199 | sc->sc_bulkin_ep, sc->sc_bulkin_maxpktsize, |
| 200 | sc->sc_bulkout_ep, sc->sc_bulkout_maxpktsize); |
| 201 | |
| 202 | if (sc->sc_bulkin_maxpktsize < 16 || sc->sc_bulkout_maxpktsize < 16) { |
| 203 | aprint_error_dev(self, "bad maxpktsize\n" ); |
| 204 | return; |
| 205 | } |
| 206 | usbd_status err; |
| 207 | |
| 208 | err = usbd_open_pipe(sc->sc_iface, sc->sc_bulkin_ep, |
| 209 | USBD_EXCLUSIVE_USE, &sc->sc_bulkin_pipe); |
| 210 | if (err) { |
| 211 | aprint_error_dev(sc->sc_dev, |
| 212 | "couldn't open bulk-in pipe: %s\n" , usbd_errstr(err)); |
| 213 | return; |
| 214 | } |
| 215 | err = usbd_open_pipe(sc->sc_iface, sc->sc_bulkout_ep, |
| 216 | USBD_EXCLUSIVE_USE, &sc->sc_bulkout_pipe); |
| 217 | if (err) { |
| 218 | aprint_error_dev(sc->sc_dev, |
| 219 | "couldn't open bulk-out pipe: %s\n" , usbd_errstr(err)); |
| 220 | usbd_close_pipe(sc->sc_bulkin_pipe); |
| 221 | sc->sc_bulkin_pipe = NULL; |
| 222 | return; |
| 223 | } |
| 224 | |
| 225 | int error; |
| 226 | error = usbd_create_xfer(sc->sc_bulkin_pipe, sc->sc_bulkin_maxpktsize, |
| 227 | USBD_SHORT_XFER_OK, 0, &sc->sc_bulkin_xfer); |
| 228 | if (error) { |
| 229 | goto fail; |
| 230 | } |
| 231 | |
| 232 | error = usbd_create_xfer(sc->sc_bulkout_pipe, |
| 233 | sc->sc_bulkout_maxpktsize, USBD_FORCE_SHORT_XFER, 0, |
| 234 | &sc->sc_bulkout_xfer); |
| 235 | if (error) { |
| 236 | goto fail; |
| 237 | } |
| 238 | sc->sc_bulkin_buffer = usbd_get_buffer(sc->sc_bulkin_xfer); |
| 239 | sc->sc_bulkout_buffer = usbd_get_buffer(sc->sc_bulkout_xfer); |
| 240 | |
| 241 | irmce_rescan(self, NULL, NULL); |
| 242 | return; |
| 243 | |
| 244 | fail: |
| 245 | if (sc->sc_bulkin_xfer) |
| 246 | usbd_destroy_xfer(sc->sc_bulkin_xfer); |
| 247 | if (sc->sc_bulkout_xfer) |
| 248 | usbd_destroy_xfer(sc->sc_bulkout_xfer); |
| 249 | } |
| 250 | |
| 251 | static int |
| 252 | irmce_detach(device_t self, int flags) |
| 253 | { |
| 254 | struct irmce_softc *sc = device_private(self); |
| 255 | int error; |
| 256 | |
| 257 | if (sc->sc_cirdev) { |
| 258 | error = config_detach(sc->sc_cirdev, flags); |
| 259 | if (error) |
| 260 | return error; |
| 261 | } |
| 262 | |
| 263 | if (sc->sc_bulkin_pipe) { |
| 264 | usbd_abort_pipe(sc->sc_bulkin_pipe); |
| 265 | } |
| 266 | if (sc->sc_bulkout_pipe) { |
| 267 | usbd_abort_pipe(sc->sc_bulkout_pipe); |
| 268 | } |
| 269 | if (sc->sc_bulkin_xfer) { |
| 270 | usbd_destroy_xfer(sc->sc_bulkin_xfer); |
| 271 | sc->sc_bulkin_buffer = NULL; |
| 272 | sc->sc_bulkin_xfer = NULL; |
| 273 | } |
| 274 | if (sc->sc_bulkout_xfer) { |
| 275 | usbd_destroy_xfer(sc->sc_bulkout_xfer); |
| 276 | sc->sc_bulkout_buffer = NULL; |
| 277 | sc->sc_bulkout_xfer = NULL; |
| 278 | } |
| 279 | if (sc->sc_bulkin_pipe) { |
| 280 | usbd_close_pipe(sc->sc_bulkin_pipe); |
| 281 | sc->sc_bulkin_pipe = NULL; |
| 282 | } |
| 283 | if (sc->sc_bulkout_pipe) { |
| 284 | usbd_close_pipe(sc->sc_bulkout_pipe); |
| 285 | sc->sc_bulkout_pipe = NULL; |
| 286 | } |
| 287 | |
| 288 | pmf_device_deregister(self); |
| 289 | |
| 290 | return 0; |
| 291 | } |
| 292 | |
| 293 | static int |
| 294 | irmce_activate(device_t self, enum devact act) |
| 295 | { |
| 296 | return 0; |
| 297 | } |
| 298 | |
| 299 | static int |
| 300 | irmce_rescan(device_t self, const char *ifattr, const int *locators) |
| 301 | { |
| 302 | struct irmce_softc *sc = device_private(self); |
| 303 | struct ir_attach_args iaa; |
| 304 | |
| 305 | if (sc->sc_cirdev == NULL) { |
| 306 | iaa.ia_type = IR_TYPE_CIR; |
| 307 | iaa.ia_methods = &irmce_cir_methods; |
| 308 | iaa.ia_handle = sc; |
| 309 | sc->sc_cirdev = config_found_ia(self, "irbus" , |
| 310 | &iaa, irmce_print); |
| 311 | } |
| 312 | |
| 313 | return 0; |
| 314 | } |
| 315 | |
| 316 | static int |
| 317 | irmce_print(void *priv, const char *pnp) |
| 318 | { |
| 319 | if (pnp) |
| 320 | aprint_normal("cir at %s" , pnp); |
| 321 | |
| 322 | return UNCONF; |
| 323 | } |
| 324 | |
| 325 | static void |
| 326 | irmce_childdet(device_t self, device_t child) |
| 327 | { |
| 328 | struct irmce_softc *sc = device_private(self); |
| 329 | |
| 330 | if (sc->sc_cirdev == child) |
| 331 | sc->sc_cirdev = NULL; |
| 332 | } |
| 333 | |
| 334 | static int |
| 335 | irmce_reset(struct irmce_softc *sc) |
| 336 | { |
| 337 | static const uint8_t reset_cmd[] = { 0x00, 0xff, 0xaa }; |
| 338 | uint8_t *p = sc->sc_bulkout_buffer; |
| 339 | usbd_status err; |
| 340 | uint32_t wlen; |
| 341 | unsigned int n; |
| 342 | |
| 343 | for (n = 0; n < __arraycount(reset_cmd); n++) |
| 344 | *p++ = reset_cmd[n]; |
| 345 | |
| 346 | wlen = sizeof(reset_cmd); |
| 347 | err = usbd_bulk_transfer(sc->sc_bulkout_xfer, sc->sc_bulkout_pipe, |
| 348 | USBD_FORCE_SHORT_XFER, USBD_DEFAULT_TIMEOUT, |
| 349 | sc->sc_bulkout_buffer, &wlen); |
| 350 | if (err != USBD_NORMAL_COMPLETION) { |
| 351 | if (err == USBD_INTERRUPTED) |
| 352 | return EINTR; |
| 353 | else if (err == USBD_TIMEOUT) |
| 354 | return ETIMEDOUT; |
| 355 | else |
| 356 | return EIO; |
| 357 | } |
| 358 | |
| 359 | return 0; |
| 360 | } |
| 361 | |
| 362 | static int |
| 363 | irmce_open(void *priv, int flag, int mode, struct proc *p) |
| 364 | { |
| 365 | struct irmce_softc *sc = priv; |
| 366 | int err = irmce_reset(sc); |
| 367 | if (err) { |
| 368 | aprint_error_dev(sc->sc_dev, |
| 369 | "couldn't reset device: %s\n" , usbd_errstr(err)); |
| 370 | } |
| 371 | sc->sc_ir_state = IRMCE_STATE_HEADER; |
| 372 | sc->sc_rc6_nhb = 0; |
| 373 | |
| 374 | return 0; |
| 375 | } |
| 376 | |
| 377 | static int |
| 378 | irmce_close(void *priv, int flag, int mode, struct proc *p) |
| 379 | { |
| 380 | struct irmce_softc *sc = priv; |
| 381 | |
| 382 | if (sc->sc_bulkin_pipe) { |
| 383 | usbd_abort_pipe(sc->sc_bulkin_pipe); |
| 384 | } |
| 385 | if (sc->sc_bulkout_pipe) { |
| 386 | usbd_abort_pipe(sc->sc_bulkout_pipe); |
| 387 | } |
| 388 | |
| 389 | return 0; |
| 390 | } |
| 391 | |
| 392 | static int |
| 393 | irmce_rc6_decode(struct irmce_softc *sc, uint8_t *buf, size_t buflen, |
| 394 | struct uio *uio) |
| 395 | { |
| 396 | bool *hb = &sc->sc_rc6_hb[0]; |
| 397 | unsigned int n; |
| 398 | int state, pulse; |
| 399 | uint32_t data; |
| 400 | uint8_t mode; |
| 401 | bool idle = false; |
| 402 | |
| 403 | for (n = 0; n < buflen; n++) { |
| 404 | state = (buf[n] & 0x80) ? 1 : 0; |
| 405 | pulse = (buf[n] & 0x7f) * 50; |
| 406 | |
| 407 | if (pulse >= 300 && pulse <= 600) { |
| 408 | hb[sc->sc_rc6_nhb++] = state; |
| 409 | } else if (pulse >= 680 && pulse <= 1080) { |
| 410 | hb[sc->sc_rc6_nhb++] = state; |
| 411 | hb[sc->sc_rc6_nhb++] = state; |
| 412 | } else if (pulse >= 1150 && pulse <= 1450) { |
| 413 | hb[sc->sc_rc6_nhb++] = state; |
| 414 | hb[sc->sc_rc6_nhb++] = state; |
| 415 | hb[sc->sc_rc6_nhb++] = state; |
| 416 | } else if (pulse >= 2400 && pulse <= 2800) { |
| 417 | hb[sc->sc_rc6_nhb++] = state; |
| 418 | hb[sc->sc_rc6_nhb++] = state; |
| 419 | hb[sc->sc_rc6_nhb++] = state; |
| 420 | hb[sc->sc_rc6_nhb++] = state; |
| 421 | hb[sc->sc_rc6_nhb++] = state; |
| 422 | hb[sc->sc_rc6_nhb++] = state; |
| 423 | } else if (pulse > 3000) { |
| 424 | if (sc->sc_rc6_nhb & 1) |
| 425 | hb[sc->sc_rc6_nhb++] = state; |
| 426 | idle = true; |
| 427 | break; |
| 428 | } else { |
| 429 | aprint_debug_dev(sc->sc_dev, |
| 430 | "error parsing RC6 stream (pulse=%d)\n" , pulse); |
| 431 | return EIO; |
| 432 | } |
| 433 | } |
| 434 | |
| 435 | if (!idle) |
| 436 | return 0; |
| 437 | |
| 438 | if (sc->sc_rc6_nhb < 20) { |
| 439 | aprint_debug_dev(sc->sc_dev, "not enough RC6 data\n" ); |
| 440 | return EIO; |
| 441 | } |
| 442 | |
| 443 | /* RC6 leader 11111100 */ |
| 444 | if (!hb[0] || !hb[1] || !hb[2] || !hb[3] || !hb[4] || !hb[5] || |
| 445 | hb[6] || hb[7]) { |
| 446 | aprint_debug_dev(sc->sc_dev, "bad RC6 leader\n" ); |
| 447 | return EIO; |
| 448 | } |
| 449 | |
| 450 | /* start bit 10 */ |
| 451 | if (!hb[8] || hb[9]) { |
| 452 | aprint_debug_dev(sc->sc_dev, "missing RC6 start bit\n" ); |
| 453 | return EIO; |
| 454 | } |
| 455 | |
| 456 | /* mode info */ |
| 457 | mode = 0x00; |
| 458 | for (n = 10; n < 15; n += 2) { |
| 459 | if (hb[n] && !hb[n + 1]) |
| 460 | mode = (mode << 1) | 1; |
| 461 | else if (!hb[n] && hb[n + 1]) |
| 462 | mode = (mode << 1) | 0; |
| 463 | else { |
| 464 | aprint_debug_dev(sc->sc_dev, "bad RC6 mode bits\n" ); |
| 465 | return EIO; |
| 466 | } |
| 467 | } |
| 468 | |
| 469 | data = 0; |
| 470 | for (n = 20; n < sc->sc_rc6_nhb; n += 2) { |
| 471 | if (hb[n] && !hb[n + 1]) |
| 472 | data = (data << 1) | 1; |
| 473 | else if (!hb[n] && hb[n + 1]) |
| 474 | data = (data << 1) | 0; |
| 475 | else { |
| 476 | aprint_debug_dev(sc->sc_dev, "bad RC6 data bits\n" ); |
| 477 | return EIO; |
| 478 | } |
| 479 | } |
| 480 | |
| 481 | sc->sc_rc6_nhb = 0; |
| 482 | |
| 483 | return uiomove(&data, sizeof(data), uio); |
| 484 | } |
| 485 | |
| 486 | static int |
| 487 | irmce_process(struct irmce_softc *sc, uint8_t *buf, size_t buflen, |
| 488 | struct uio *uio) |
| 489 | { |
| 490 | uint8_t *p = buf; |
| 491 | uint8_t data, cmd; |
| 492 | int error; |
| 493 | |
| 494 | while (p - buf < (ssize_t)buflen) { |
| 495 | switch (sc->sc_ir_state) { |
| 496 | case IRMCE_STATE_HEADER: |
| 497 | sc->sc_ir_header = data = *p++; |
| 498 | if ((data & 0xe0) == 0x80 && (data & 0x1f) != 0x1f) { |
| 499 | sc->sc_ir_bufused = 0; |
| 500 | sc->sc_ir_resid = data & 0x1f; |
| 501 | sc->sc_ir_state = IRMCE_STATE_IRDATA; |
| 502 | if (sc->sc_ir_resid > sizeof(sc->sc_ir_buf)) |
| 503 | return EIO; |
| 504 | if (sc->sc_ir_resid == 0) |
| 505 | sc->sc_ir_state = IRMCE_STATE_HEADER; |
| 506 | } else { |
| 507 | sc->sc_ir_state = IRMCE_STATE_CMDHEADER; |
| 508 | } |
| 509 | break; |
| 510 | case IRMCE_STATE_CMDHEADER: |
| 511 | cmd = *p++; |
| 512 | data = sc->sc_ir_header; |
| 513 | if (data == 0x00 && cmd == 0x9f) |
| 514 | sc->sc_ir_resid = 1; |
| 515 | else if (data == 0xff && cmd == 0x0b) |
| 516 | sc->sc_ir_resid = 2; |
| 517 | else if (data == 0x9f) { |
| 518 | if (cmd == 0x04 || cmd == 0x06 || |
| 519 | cmd == 0x0c || cmd == 0x15) { |
| 520 | sc->sc_ir_resid = 2; |
| 521 | } else if (cmd == 0x01 || cmd == 0x08 || |
| 522 | cmd == 0x14) { |
| 523 | sc->sc_ir_resid = 1; |
| 524 | } |
| 525 | } |
| 526 | if (sc->sc_ir_resid > 0) |
| 527 | sc->sc_ir_state = IRMCE_STATE_CMDDATA; |
| 528 | else |
| 529 | sc->sc_ir_state = IRMCE_STATE_HEADER; |
| 530 | break; |
| 531 | case IRMCE_STATE_IRDATA: |
| 532 | sc->sc_ir_resid--; |
| 533 | sc->sc_ir_buf[sc->sc_ir_bufused++] = *p; |
| 534 | p++; |
| 535 | if (sc->sc_ir_resid == 0) { |
| 536 | sc->sc_ir_state = IRMCE_STATE_HEADER; |
| 537 | error = irmce_rc6_decode(sc, |
| 538 | sc->sc_ir_buf, sc->sc_ir_bufused, uio); |
| 539 | if (error) |
| 540 | sc->sc_rc6_nhb = 0; |
| 541 | } |
| 542 | break; |
| 543 | case IRMCE_STATE_CMDDATA: |
| 544 | p++; |
| 545 | sc->sc_ir_resid--; |
| 546 | if (sc->sc_ir_resid == 0) |
| 547 | sc->sc_ir_state = IRMCE_STATE_HEADER; |
| 548 | break; |
| 549 | } |
| 550 | |
| 551 | } |
| 552 | |
| 553 | return 0; |
| 554 | } |
| 555 | |
| 556 | static int |
| 557 | irmce_read(void *priv, struct uio *uio, int flag) |
| 558 | { |
| 559 | struct irmce_softc *sc = priv; |
| 560 | usbd_status err; |
| 561 | uint32_t rlen; |
| 562 | int error = 0; |
| 563 | |
| 564 | while (uio->uio_resid > 0) { |
| 565 | rlen = sc->sc_bulkin_maxpktsize; |
| 566 | err = usbd_bulk_transfer(sc->sc_bulkin_xfer, |
| 567 | sc->sc_bulkin_pipe, USBD_SHORT_XFER_OK, |
| 568 | USBD_DEFAULT_TIMEOUT, sc->sc_bulkin_buffer, &rlen); |
| 569 | if (err != USBD_NORMAL_COMPLETION) { |
| 570 | if (err == USBD_INTERRUPTED) |
| 571 | return EINTR; |
| 572 | else if (err == USBD_TIMEOUT) |
| 573 | continue; |
| 574 | else |
| 575 | return EIO; |
| 576 | } |
| 577 | |
| 578 | if (sc->sc_raw) { |
| 579 | error = uiomove(sc->sc_bulkin_buffer, rlen, uio); |
| 580 | break; |
| 581 | } else { |
| 582 | error = irmce_process(sc, sc->sc_bulkin_buffer, |
| 583 | rlen, uio); |
| 584 | if (error) |
| 585 | break; |
| 586 | } |
| 587 | } |
| 588 | |
| 589 | return error; |
| 590 | } |
| 591 | |
| 592 | static int |
| 593 | irmce_write(void *priv, struct uio *uio, int flag) |
| 594 | { |
| 595 | return EIO; |
| 596 | } |
| 597 | |
| 598 | static int |
| 599 | irmce_setparams(void *priv, struct cir_params *params) |
| 600 | { |
| 601 | struct irmce_softc *sc = priv; |
| 602 | |
| 603 | if (params->raw > 1) |
| 604 | return EINVAL; |
| 605 | sc->sc_raw = params->raw; |
| 606 | |
| 607 | return 0; |
| 608 | } |
| 609 | |
| 610 | MODULE(MODULE_CLASS_DRIVER, irmce, NULL); |
| 611 | |
| 612 | #ifdef _MODULE |
| 613 | #include "ioconf.c" |
| 614 | #endif |
| 615 | |
| 616 | static int |
| 617 | irmce_modcmd(modcmd_t cmd, void *opaque) |
| 618 | { |
| 619 | switch (cmd) { |
| 620 | case MODULE_CMD_INIT: |
| 621 | #ifdef _MODULE |
| 622 | return config_init_component(cfdriver_ioconf_irmce, |
| 623 | cfattach_ioconf_irmce, cfdata_ioconf_irmce); |
| 624 | #else |
| 625 | return 0; |
| 626 | #endif |
| 627 | case MODULE_CMD_FINI: |
| 628 | #ifdef _MODULE |
| 629 | return config_fini_component(cfdriver_ioconf_irmce, |
| 630 | cfattach_ioconf_irmce, cfdata_ioconf_irmce); |
| 631 | #else |
| 632 | return 0; |
| 633 | #endif |
| 634 | default: |
| 635 | return ENOTTY; |
| 636 | } |
| 637 | } |
| 638 | |