uplcom.c revision 1.7
1 /* $NetBSD: uplcom.c,v 1.7 2001/01/23 14:04:14 augustss Exp $ */ 2 /* 3 * Copyright (c) 2001 The NetBSD Foundation, Inc. 4 * All rights reserved. 5 * 6 * This code is derived from software contributed to The NetBSD Foundation 7 * by FUKUHARA ichiro (ichiro (at) ichiro.org). 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by the NetBSD 20 * Foundation, Inc. and its contributors. 21 * 4. Neither the name of The NetBSD Foundation nor the names of its 22 * contributors may be used to endorse or promote products derived 23 * from this software without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 26 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 * POSSIBILITY OF SUCH DAMAGE. 36 */ 37 38 /* 39 * Simple datasheet 40 * http://www.nisseisg.co.jp/jyouhou/_cp/@gif/2303.pdf 41 * (english) 42 * 43 */ 44 45 #include <sys/param.h> 46 #include <sys/systm.h> 47 #include <sys/kernel.h> 48 #include <sys/ioctl.h> 49 #include <sys/conf.h> 50 #include <sys/tty.h> 51 #include <sys/file.h> 52 #include <sys/select.h> 53 #include <sys/proc.h> 54 #include <sys/vnode.h> 55 #include <sys/device.h> 56 #include <sys/poll.h> 57 58 #include <dev/usb/usb.h> 59 #include <dev/usb/usbcdc.h> 60 61 #include <dev/usb/usbdi.h> 62 #include <dev/usb/usbdi_util.h> 63 #include <dev/usb/usbdevs.h> 64 #include <dev/usb/usb_quirks.h> 65 66 #include <dev/usb/usbdevs.h> 67 #include <dev/usb/ucomvar.h> 68 69 #ifdef UPLCOM_DEBUG 70 #define DPRINTFN(n, x) if (uplcomdebug > (n)) logprintf x 71 int uplcomdebug = 0xff; 72 #else 73 #define DPRINTFN(n, x) 74 #endif 75 #define DPRINTF(x) DPRINTFN(0, x) 76 77 #define UPLCOM_CONFIG_INDEX 0 78 #define UPLCOM_IFACE_INDEX 0 79 #define UPLCOM_RESET 0 80 81 struct uplcom_softc { 82 USBBASEDEVICE sc_dev; /* base device */ 83 usbd_device_handle sc_udev; /* USB device */ 84 usbd_interface_handle sc_iface; /* interface */ 85 int sc_iface_number; /* interface number */ 86 87 usb_cdc_line_state_t sc_line_state; /* current line state */ 88 u_char sc_dtr; /* current DTR state */ 89 u_char sc_rts; /* current RTS state */ 90 91 device_ptr_t sc_subdev; 92 93 u_char sc_dying; 94 }; 95 96 /* 97 * These are the maximum number of bytes transferred per frame. 98 * The output buffer size cannot be increased due to the size encoding. 99 */ 100 #define UPLCOMIBUFSIZE 256 101 #define UPLCOMOBUFSIZE 256 102 103 Static usbd_status uplcom_init(struct uplcom_softc *); 104 Static usbd_status uplcom_set_line_coding(struct uplcom_softc *sc, 105 usb_cdc_line_state_t *state); 106 107 Static void uplcom_set(void *, int, int, int); 108 Static void uplcom_dtr(struct uplcom_softc *, int); 109 Static void uplcom_rts(struct uplcom_softc *, int); 110 Static void uplcom_break(struct uplcom_softc *, int); 111 Static void uplcom_set_line_state(struct uplcom_softc *); 112 Static int uplcom_param(void *, int, struct termios *); 113 114 struct ucom_methods uplcom_methods = { 115 NULL, 116 uplcom_set, 117 uplcom_param, 118 NULL, 119 NULL, 120 NULL, 121 NULL, 122 NULL, 123 }; 124 125 static const struct uplcom_product { 126 uint16_t vendor; 127 uint16_t product; 128 } uplcom_products [] = { 129 /* I/O DATA USB-RSAQ2 */ 130 { USB_VENDOR_PROLIFIC, USB_PRODUCT_PROLIFIC_PL2303 }, 131 132 { 0, 0 } 133 }; 134 135 USB_DECLARE_DRIVER(uplcom); 136 137 USB_MATCH(uplcom) 138 { 139 USB_MATCH_START(uplcom, uaa); 140 int i; 141 142 if (uaa->iface != NULL) 143 return (UMATCH_NONE); 144 145 for (i = 0; uplcom_products[i].vendor != 0; i++) { 146 if (uplcom_products[i].vendor == uaa->vendor && 147 uplcom_products[i].product == uaa->product) { 148 return (UMATCH_VENDOR_PRODUCT); 149 } 150 } 151 return (UMATCH_NONE); 152 } 153 154 USB_ATTACH(uplcom) 155 { 156 USB_ATTACH_START(uplcom, sc, uaa); 157 usbd_device_handle dev = uaa->device; 158 usbd_interface_handle iface; 159 usb_interface_descriptor_t *id; 160 usb_endpoint_descriptor_t *ed; 161 162 char devinfo[1024]; 163 char *devname = USBDEVNAME(sc->sc_dev); 164 usbd_status err; 165 int i; 166 struct ucom_attach_args uca; 167 168 DPRINTF(("\n\nuplcom attach: sc=%p\n", sc)); 169 170 /* Move the device into the configured state. */ 171 err = usbd_set_config_index(dev, UPLCOM_CONFIG_INDEX, 1); 172 if (err) { 173 printf("\n%s: failed to set configuration, err=%s\n", 174 devname, usbd_errstr(err)); 175 USB_ATTACH_ERROR_RETURN; 176 } 177 178 err = usbd_device2interface_handle(dev, UPLCOM_IFACE_INDEX, &iface); 179 if (err) { 180 printf("\n%s: failed to get interface, err=%s\n", 181 devname, usbd_errstr(err)); 182 USB_ATTACH_ERROR_RETURN; 183 } 184 185 usbd_devinfo(dev, 0, devinfo); 186 USB_ATTACH_SETUP; 187 printf("%s: %s\n", devname, devinfo); 188 189 id = usbd_get_interface_descriptor(iface); 190 191 sc->sc_udev = dev; 192 sc->sc_iface = iface; 193 194 sc->sc_iface_number = id->bInterfaceNumber; 195 196 uca.bulkin = uca.bulkout = -1; 197 for (i = 0; i < id->bNumEndpoints; i++) { 198 ed = usbd_interface2endpoint_descriptor(iface, i); 199 if (ed == NULL) { 200 printf("%s: no endpoint descriptor for %d\n", 201 USBDEVNAME(sc->sc_dev), i); 202 USB_ATTACH_ERROR_RETURN; 203 } 204 205 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 206 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 207 uca.bulkin = ed->bEndpointAddress; 208 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 209 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { 210 DPRINTF(("interrupt endpoint addr = 0x%x\n", 211 ed->bEndpointAddress)); 212 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 213 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 214 uca.bulkout = ed->bEndpointAddress; 215 } 216 } 217 218 if (uca.bulkin == -1) { 219 printf("%s: Could not find data bulk in\n", 220 USBDEVNAME(sc->sc_dev)); 221 USB_ATTACH_ERROR_RETURN; 222 } 223 224 if (uca.bulkout == -1) { 225 printf("%s: Could not find data bulk out\n", 226 USBDEVNAME(sc->sc_dev)); 227 USB_ATTACH_ERROR_RETURN; 228 } 229 230 sc->sc_dtr = -1; 231 uca.portno = UCOM_UNK_PORTNO; 232 /* bulkin, bulkout set above */ 233 uca.ibufsize = UPLCOMIBUFSIZE; 234 uca.obufsize = UPLCOMOBUFSIZE; 235 uca.ibufsizepad = UPLCOMIBUFSIZE; 236 uca.opkthdrlen = 0; 237 uca.device = dev; 238 uca.iface = iface; 239 uca.methods = &uplcom_methods; 240 uca.arg = sc; 241 242 err = uplcom_init(sc); 243 if (err) { 244 printf("%s: init failed, %s\n", USBDEVNAME(sc->sc_dev), 245 usbd_errstr(err)); 246 USB_ATTACH_ERROR_RETURN; 247 } 248 249 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 250 USBDEV(sc->sc_dev)); 251 252 DPRINTF(("uplcom: in=0x%x out=0x%x\n", uca.bulkin, uca.bulkout)); 253 sc->sc_subdev = config_found_sm(self, &uca, ucomprint, ucomsubmatch); 254 255 USB_ATTACH_SUCCESS_RETURN; 256 } 257 258 USB_DETACH(uplcom) 259 { 260 USB_DETACH_START(uplcom, sc); 261 int rv = 0; 262 263 DPRINTF(("uplcom_detach: sc=%p flags=%d\n", sc, flags)); 264 sc->sc_dying = 1; 265 if (sc->sc_subdev != NULL) { 266 rv = config_detach(sc->sc_subdev, flags); 267 sc->sc_subdev = NULL; 268 } 269 270 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 271 USBDEV(sc->sc_dev)); 272 273 return (rv); 274 } 275 276 int 277 uplcom_activate(device_ptr_t self, enum devact act) 278 { 279 struct uplcom_softc *sc = (struct uplcom_softc *)self; 280 int rv = 0; 281 282 switch (act) { 283 case DVACT_ACTIVATE: 284 return (EOPNOTSUPP); 285 break; 286 287 case DVACT_DEACTIVATE: 288 if (sc->sc_subdev != NULL) 289 rv = config_deactivate(sc->sc_subdev); 290 sc->sc_dying = 1; 291 break; 292 } 293 return (rv); 294 } 295 296 297 usbd_status 298 uplcom_init(struct uplcom_softc *sc) 299 { 300 usb_device_request_t req; 301 usbd_status err; 302 303 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 304 req.bRequest = UPLCOM_RESET; 305 USETW(req.wValue, UPLCOM_RESET); 306 USETW(req.wIndex, sc->sc_iface_number); 307 USETW(req.wLength, 0); 308 309 err = usbd_do_request(sc->sc_udev, &req, 0); 310 if (err) 311 return (EIO); 312 313 return (0); 314 } 315 316 void 317 uplcom_set_line_state(struct uplcom_softc *sc) 318 { 319 usb_device_request_t req; 320 int ls; 321 322 ls = (sc->sc_dtr ? UCDC_LINE_DTR : 0) | 323 (sc->sc_rts ? UCDC_LINE_RTS : 0); 324 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 325 req.bRequest = UCDC_SET_CONTROL_LINE_STATE; 326 USETW(req.wValue, ls); 327 USETW(req.wIndex, sc->sc_iface_number); 328 USETW(req.wLength, 0); 329 330 (void)usbd_do_request(sc->sc_udev, &req, 0); 331 332 } 333 334 void 335 uplcom_set(void *addr, int portno, int reg, int onoff) 336 { 337 struct uplcom_softc *sc = addr; 338 339 switch (reg) { 340 case UCOM_SET_DTR: 341 uplcom_dtr(sc, onoff); 342 break; 343 case UCOM_SET_RTS: 344 uplcom_rts(sc, onoff); 345 break; 346 case UCOM_SET_BREAK: 347 uplcom_break(sc, onoff); 348 break; 349 default: 350 break; 351 } 352 } 353 354 void 355 uplcom_dtr(struct uplcom_softc *sc, int onoff) 356 { 357 358 DPRINTF(("uplcom: onoff=%d\n", onoff)); 359 360 if (sc->sc_dtr == onoff) 361 return; 362 sc->sc_dtr = onoff; 363 364 uplcom_set_line_state(sc); 365 } 366 367 void 368 uplcom_rts(struct uplcom_softc *sc, int onoff) 369 { 370 DPRINTF(("uplcom_rts: onoff=%d\n", onoff)); 371 372 if (sc->sc_rts == onoff) 373 return; 374 sc->sc_rts = onoff; 375 376 uplcom_set_line_state(sc); 377 } 378 379 void 380 uplcom_break(struct uplcom_softc *sc, int onoff) 381 { 382 usb_device_request_t req; 383 384 DPRINTF(("uplcom_break: onoff=%d\n", onoff)); 385 386 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 387 req.bRequest = UCDC_SEND_BREAK; 388 USETW(req.wValue, onoff ? UCDC_BREAK_ON : UCDC_BREAK_OFF); 389 USETW(req.wIndex, sc->sc_iface_number); 390 USETW(req.wLength, 0); 391 392 (void)usbd_do_request(sc->sc_udev, &req, 0); 393 } 394 395 usbd_status 396 uplcom_set_line_coding(struct uplcom_softc *sc, usb_cdc_line_state_t *state) 397 { 398 usb_device_request_t req; 399 usbd_status err; 400 401 DPRINTF(("uplcom_set_line_coding: rate=%d fmt=%d parity=%d bits=%d\n", 402 UGETDW(state->dwDTERate), state->bCharFormat, 403 state->bParityType, state->bDataBits)); 404 405 if (memcmp(state, &sc->sc_line_state, UCDC_LINE_STATE_LENGTH) == 0) { 406 DPRINTF(("uplcom_set_line_coding: already set\n")); 407 return (USBD_NORMAL_COMPLETION); 408 } 409 410 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 411 req.bRequest = UCDC_SET_LINE_CODING; 412 USETW(req.wValue, 0); 413 USETW(req.wIndex, sc->sc_iface_number); 414 USETW(req.wLength, UCDC_LINE_STATE_LENGTH); 415 416 err = usbd_do_request(sc->sc_udev, &req, state); 417 if (err) { 418 DPRINTF(("uplcom_set_line_coding: failed, err=%s\n", 419 usbd_errstr(err))); 420 return (err); 421 } 422 423 sc->sc_line_state = *state; 424 425 return (USBD_NORMAL_COMPLETION); 426 } 427 428 int 429 uplcom_param(void *addr, int portno, struct termios *t) 430 { 431 struct uplcom_softc *sc = addr; 432 usbd_status err; 433 usb_cdc_line_state_t ls; 434 435 DPRINTF(("uplcom_param: sc=%p\n", sc)); 436 437 USETDW(ls.dwDTERate, t->c_ospeed); 438 if (ISSET(t->c_cflag, CSTOPB)) 439 ls.bCharFormat = UCDC_STOP_BIT_2; 440 else 441 ls.bCharFormat = UCDC_STOP_BIT_1; 442 if (ISSET(t->c_cflag, PARENB)) { 443 if (ISSET(t->c_cflag, PARODD)) 444 ls.bParityType = UCDC_PARITY_ODD; 445 else 446 ls.bParityType = UCDC_PARITY_EVEN; 447 } else 448 ls.bParityType = UCDC_PARITY_NONE; 449 switch (ISSET(t->c_cflag, CSIZE)) { 450 case CS5: 451 ls.bDataBits = 5; 452 break; 453 case CS6: 454 ls.bDataBits = 6; 455 break; 456 case CS7: 457 ls.bDataBits = 7; 458 break; 459 case CS8: 460 ls.bDataBits = 8; 461 break; 462 } 463 464 err = uplcom_set_line_coding(sc, &ls); 465 if (err) { 466 DPRINTF(("uplcom_param: err=%s\n", usbd_errstr(err))); 467 return (EIO); 468 } 469 return (0); 470 } 471
Indexes created Sun Sep 28 16:09:52 GMT 2025