uplcom.c revision 1.6
1 /* $NetBSD: uplcom.c,v 1.6 2001/01/23 13:48:06 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 DPRINTF(("uplcom: in=0x%x out=0x%x\n", uca.bulkin, uca.bulkout)); 250 sc->sc_subdev = config_found_sm(self, &uca, ucomprint, ucomsubmatch); 251 252 USB_ATTACH_SUCCESS_RETURN; 253 } 254 255 USB_DETACH(uplcom) 256 { 257 USB_DETACH_START(uplcom, sc); 258 int rv = 0; 259 260 DPRINTF(("uplcom_detach: sc=%p flags=%d\n", sc, flags)); 261 sc->sc_dying = 1; 262 if (sc->sc_subdev != NULL) { 263 rv = config_detach(sc->sc_subdev, flags); 264 sc->sc_subdev = NULL; 265 } 266 267 return (rv); 268 } 269 270 int 271 uplcom_activate(device_ptr_t self, enum devact act) 272 { 273 struct uplcom_softc *sc = (struct uplcom_softc *)self; 274 int rv = 0; 275 276 switch (act) { 277 case DVACT_ACTIVATE: 278 return (EOPNOTSUPP); 279 break; 280 281 case DVACT_DEACTIVATE: 282 if (sc->sc_subdev != NULL) 283 rv = config_deactivate(sc->sc_subdev); 284 sc->sc_dying = 1; 285 break; 286 } 287 return (rv); 288 } 289 290 291 usbd_status 292 uplcom_init(struct uplcom_softc *sc) 293 { 294 usb_device_request_t req; 295 usbd_status err; 296 297 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 298 req.bRequest = UPLCOM_RESET; 299 USETW(req.wValue, UPLCOM_RESET); 300 USETW(req.wIndex, sc->sc_iface_number); 301 USETW(req.wLength, 0); 302 303 err = usbd_do_request(sc->sc_udev, &req, 0); 304 if (err) 305 return (EIO); 306 307 return (0); 308 } 309 310 void 311 uplcom_set_line_state(struct uplcom_softc *sc) 312 { 313 usb_device_request_t req; 314 int ls; 315 316 ls = (sc->sc_dtr ? UCDC_LINE_DTR : 0) | 317 (sc->sc_rts ? UCDC_LINE_RTS : 0); 318 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 319 req.bRequest = UCDC_SET_CONTROL_LINE_STATE; 320 USETW(req.wValue, ls); 321 USETW(req.wIndex, sc->sc_iface_number); 322 USETW(req.wLength, 0); 323 324 (void)usbd_do_request(sc->sc_udev, &req, 0); 325 326 } 327 328 void 329 uplcom_set(void *addr, int portno, int reg, int onoff) 330 { 331 struct uplcom_softc *sc = addr; 332 333 switch (reg) { 334 case UCOM_SET_DTR: 335 uplcom_dtr(sc, onoff); 336 break; 337 case UCOM_SET_RTS: 338 uplcom_rts(sc, onoff); 339 break; 340 case UCOM_SET_BREAK: 341 uplcom_break(sc, onoff); 342 break; 343 default: 344 break; 345 } 346 } 347 348 void 349 uplcom_dtr(struct uplcom_softc *sc, int onoff) 350 { 351 352 DPRINTF(("uplcom: onoff=%d\n", onoff)); 353 354 if (sc->sc_dtr == onoff) 355 return; 356 sc->sc_dtr = onoff; 357 358 uplcom_set_line_state(sc); 359 } 360 361 void 362 uplcom_rts(struct uplcom_softc *sc, int onoff) 363 { 364 DPRINTF(("uplcom_rts: onoff=%d\n", onoff)); 365 366 if (sc->sc_rts == onoff) 367 return; 368 sc->sc_rts = onoff; 369 370 uplcom_set_line_state(sc); 371 } 372 373 void 374 uplcom_break(struct uplcom_softc *sc, int onoff) 375 { 376 usb_device_request_t req; 377 378 DPRINTF(("uplcom_break: onoff=%d\n", onoff)); 379 380 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 381 req.bRequest = UCDC_SEND_BREAK; 382 USETW(req.wValue, onoff ? UCDC_BREAK_ON : UCDC_BREAK_OFF); 383 USETW(req.wIndex, sc->sc_iface_number); 384 USETW(req.wLength, 0); 385 386 (void)usbd_do_request(sc->sc_udev, &req, 0); 387 } 388 389 usbd_status 390 uplcom_set_line_coding(struct uplcom_softc *sc, usb_cdc_line_state_t *state) 391 { 392 usb_device_request_t req; 393 usbd_status err; 394 395 DPRINTF(("uplcom_set_line_coding: rate=%d fmt=%d parity=%d bits=%d\n", 396 UGETDW(state->dwDTERate), state->bCharFormat, 397 state->bParityType, state->bDataBits)); 398 399 if (memcmp(state, &sc->sc_line_state, UCDC_LINE_STATE_LENGTH) == 0) { 400 DPRINTF(("uplcom_set_line_coding: already set\n")); 401 return (USBD_NORMAL_COMPLETION); 402 } 403 404 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 405 req.bRequest = UCDC_SET_LINE_CODING; 406 USETW(req.wValue, 0); 407 USETW(req.wIndex, sc->sc_iface_number); 408 USETW(req.wLength, UCDC_LINE_STATE_LENGTH); 409 410 err = usbd_do_request(sc->sc_udev, &req, state); 411 if (err) { 412 DPRINTF(("uplcom_set_line_coding: failed, err=%s\n", 413 usbd_errstr(err))); 414 return (err); 415 } 416 417 sc->sc_line_state = *state; 418 419 return (USBD_NORMAL_COMPLETION); 420 } 421 422 int 423 uplcom_param(void *addr, int portno, struct termios *t) 424 { 425 struct uplcom_softc *sc = addr; 426 usbd_status err; 427 usb_cdc_line_state_t ls; 428 429 DPRINTF(("uplcom_param: sc=%p\n", sc)); 430 431 USETDW(ls.dwDTERate, t->c_ospeed); 432 if (ISSET(t->c_cflag, CSTOPB)) 433 ls.bCharFormat = UCDC_STOP_BIT_2; 434 else 435 ls.bCharFormat = UCDC_STOP_BIT_1; 436 if (ISSET(t->c_cflag, PARENB)) { 437 if (ISSET(t->c_cflag, PARODD)) 438 ls.bParityType = UCDC_PARITY_ODD; 439 else 440 ls.bParityType = UCDC_PARITY_EVEN; 441 } else 442 ls.bParityType = UCDC_PARITY_NONE; 443 switch (ISSET(t->c_cflag, CSIZE)) { 444 case CS5: 445 ls.bDataBits = 5; 446 break; 447 case CS6: 448 ls.bDataBits = 6; 449 break; 450 case CS7: 451 ls.bDataBits = 7; 452 break; 453 case CS8: 454 ls.bDataBits = 8; 455 break; 456 } 457 458 err = uplcom_set_line_coding(sc, &ls); 459 if (err) { 460 DPRINTF(("uplcom_param: err=%s\n", usbd_errstr(err))); 461 return (EIO); 462 } 463 return (0); 464 } 465
Indexes created Sun Sep 28 16:09:52 GMT 2025