uplcom.c revision 1.3
1 /* $NetBSD: uplcom.c,v 1.3 2001/01/23 02:36:17 ichiro 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 */ 40 41 #include <sys/param.h> 42 #include <sys/systm.h> 43 #include <sys/kernel.h> 44 #include <sys/ioctl.h> 45 #include <sys/conf.h> 46 #include <sys/tty.h> 47 #include <sys/file.h> 48 #include <sys/select.h> 49 #include <sys/proc.h> 50 #include <sys/vnode.h> 51 #include <sys/device.h> 52 #include <sys/poll.h> 53 54 #include <dev/usb/usb.h> 55 #include <dev/usb/usbcdc.h> 56 57 #include <dev/usb/usbdi.h> 58 #include <dev/usb/usbdi_util.h> 59 #include <dev/usb/usbdevs.h> 60 #include <dev/usb/usb_quirks.h> 61 62 #include <dev/usb/usbdevs.h> 63 #include <dev/usb/ucomvar.h> 64 65 #ifdef UPLCOM_DEBUG 66 #define DPRINTFN(n, x) if (uplcomdebug > (n)) logprintf x 67 int uplcomdebug = 0xff; 68 #else 69 #define DPRINTFN(n, x) 70 #endif 71 #define DPRINTF(x) DPRINTFN(0, x) 72 73 #define UPLCOM_CONFIG_INDEX 0 74 #define UPLCOM_IFACE_INDEX 0 75 #define UPLCOM_RESET 0 76 77 struct uplcom_softc { 78 USBBASEDEVICE sc_dev; /* base device */ 79 usbd_device_handle sc_udev; /* USB device */ 80 usbd_interface_handle sc_iface; /* interface */ 81 int sc_iface_number; /* interface number */ 82 83 usb_cdc_line_state_t sc_line_state; /* current line state */ 84 u_char sc_dtr; /* current DTR state */ 85 u_char sc_rts; /* current RTS state */ 86 87 device_ptr_t sc_subdev; 88 89 u_char sc_dying; 90 }; 91 92 /* 93 * These are the maximum number of bytes transferred per frame. 94 * The output buffer size cannot be increased due to the size encoding. 95 */ 96 #define UPLCOMIBUFSIZE 64; 97 #define UPLCOMOBUFSIZE 64; 98 99 Static usbd_status uplcom_init(struct uplcom_softc *); 100 Static usbd_status uplcom_set_line_coding(struct uplcom_softc *sc, 101 usb_cdc_line_state_t *state); 102 103 Static void uplcom_set(void *, int, int, int); 104 Static void uplcom_dtr(struct uplcom_softc *, int); 105 Static void uplcom_rts(struct uplcom_softc *, int); 106 #if 0 107 Static void uplcom_break(struct uplcom_softc *, int); 108 #endif 109 Static void uplcom_set_line_state(struct uplcom_softc *); 110 Static int uplcom_param(void *, int, struct termios *); 111 112 struct ucom_methods uplcom_methods = { 113 NULL, 114 uplcom_set, 115 uplcom_param, 116 NULL, 117 NULL, 118 NULL, 119 NULL, 120 NULL, 121 }; 122 123 static const struct uplcom_product { 124 uint16_t vendor; 125 uint16_t product; 126 } uplcom_products [] = { 127 /* I/O DATA USB-RSAQ2 */ 128 { USB_VENDOR_PROLIFIC, USB_PRODUCT_PROLIFIC_PL2303 }, 129 130 { 0, 0 } 131 }; 132 133 USB_DECLARE_DRIVER(uplcom); 134 135 USB_MATCH(uplcom) 136 { 137 USB_MATCH_START(uplcom, uaa); 138 int i; 139 140 141 if (uaa->iface == NULL) 142 return (UMATCH_NONE); 143 144 for (i = 0; uplcom_products[i].vendor != 0; i++) { 145 if (uplcom_products[i].vendor == uaa->vendor && 146 uplcom_products[i].product == uaa->product) { 147 return (UMATCH_VENDOR_PRODUCT); 148 } 149 } 150 return (UMATCH_NONE); 151 } 152 153 USB_ATTACH(uplcom) 154 { 155 USB_ATTACH_START(uplcom, sc, uaa); 156 usbd_device_handle dev = uaa->device; 157 usbd_interface_handle iface; 158 usb_interface_descriptor_t *id; 159 usb_endpoint_descriptor_t *ed; 160 161 char devinfo[1024]; 162 char *devname = USBDEVNAME(sc->sc_dev); 163 usbd_status err; 164 int i; 165 struct ucom_attach_args uca; 166 167 DPRINTF(("\n\nuplcom attach: sc=%p\n", sc)); 168 169 err = usbd_set_config_index(dev, UPLCOM_CONFIG_INDEX, 1); 170 if (err) { 171 printf("\n%s: failed to set configuration, err=%s\n", 172 devname, usbd_errstr(err)); 173 USB_ATTACH_ERROR_RETURN; 174 } 175 176 err = usbd_device2interface_handle(dev, UPLCOM_IFACE_INDEX, &iface); 177 if (err) { 178 printf("\n%s: failed to get interface, err=%s\n", 179 devname, usbd_errstr(err)); 180 USB_ATTACH_ERROR_RETURN; 181 } 182 183 usbd_devinfo(dev, 0, devinfo); 184 USB_ATTACH_SETUP; 185 printf("%s: %s\n", devname, devinfo); 186 187 id = usbd_get_interface_descriptor(iface); 188 189 sc->sc_udev = dev; 190 sc->sc_iface = iface; 191 192 sc->sc_iface_number = id->bInterfaceNumber; 193 194 uca.bulkin = uca.bulkout = -1; 195 for (i = 0; i < id->bNumEndpoints; i++) { 196 ed = usbd_interface2endpoint_descriptor(iface, i); 197 if (ed == NULL) { 198 printf("%s: no endpoint descriptor for %d\n", 199 USBDEVNAME(sc->sc_dev), i); 200 USB_ATTACH_ERROR_RETURN; 201 } 202 203 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 204 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 205 uca.bulkin = ed->bEndpointAddress; 206 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 207 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { 208 DPRINTF(("interrupt endpoint addr = 0x%x\n", 209 ed->bEndpointAddress)); 210 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 211 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 212 uca.bulkout = ed->bEndpointAddress; 213 } 214 } 215 216 if (uca.bulkin == -1) { 217 printf("%s: Could not find data bulk in\n", 218 USBDEVNAME(sc->sc_dev)); 219 USB_ATTACH_ERROR_RETURN; 220 } 221 222 if (uca.bulkout == -1) { 223 printf("%s: Could not find data bulk out\n", 224 USBDEVNAME(sc->sc_dev)); 225 USB_ATTACH_ERROR_RETURN; 226 } 227 228 sc->sc_dtr = -1; 229 uca.portno = UCOM_UNK_PORTNO; 230 /* bulkin, bulkout set above */ 231 uca.ibufsize = UPLCOMIBUFSIZE; 232 uca.obufsize = UPLCOMOBUFSIZE; 233 uca.ibufsizepad = UPLCOMIBUFSIZE; 234 uca.opkthdrlen = 1; 235 uca.device = dev; 236 uca.iface = iface; 237 uca.methods = &uplcom_methods; 238 uca.arg = sc; 239 240 err = uplcom_init(sc); 241 if (err) { 242 printf("%s: init failed, %s\n", USBDEVNAME(sc->sc_dev), 243 usbd_errstr(err)); 244 USB_ATTACH_ERROR_RETURN; 245 } 246 247 DPRINTF(("uplcom: in=0x%x out=0x%x\n", uca.bulkin, uca.bulkout)); 248 sc->sc_subdev = config_found_sm(self, &uca, ucomprint, ucomsubmatch); 249 250 USB_ATTACH_SUCCESS_RETURN; 251 } 252 253 USB_DETACH(uplcom) 254 { 255 USB_DETACH_START(uplcom, sc); 256 int rv = 0; 257 258 DPRINTF(("uplcom_detach: sc=%p flags=%d\n", sc, flags)); 259 sc->sc_dying = 1; 260 if (sc->sc_subdev != NULL) 261 rv = config_detach(sc->sc_subdev, flags); 262 263 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 264 USBDEV(sc->sc_dev)); 265 266 return (rv); 267 } 268 269 int 270 uplcom_activate(device_ptr_t self, enum devact act) 271 { 272 struct uplcom_softc *sc = (struct uplcom_softc *)self; 273 int rv = 0; 274 275 switch (act) { 276 case DVACT_ACTIVATE: 277 return (EOPNOTSUPP); 278 break; 279 280 case DVACT_DEACTIVATE: 281 if (sc->sc_subdev != NULL) 282 rv = config_deactivate(sc->sc_subdev); 283 sc->sc_dying = 1; 284 break; 285 } 286 return (rv); 287 } 288 289 290 usbd_status 291 uplcom_init(struct uplcom_softc *sc) 292 { 293 usb_device_request_t req; 294 usbd_status err; 295 296 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 297 req.bRequest = UPLCOM_RESET; 298 USETW(req.wValue, UPLCOM_RESET); 299 USETW(req.wIndex, sc->sc_iface_number); 300 USETW(req.wLength, 0); 301 302 err = usbd_do_request(sc->sc_udev, &req, 0); 303 if (err) 304 return (EIO); 305 306 return (0); 307 } 308 309 void 310 uplcom_set_line_state(struct uplcom_softc *sc) 311 { 312 usb_device_request_t req; 313 int ls; 314 315 ls = (sc->sc_dtr ? UCDC_LINE_DTR : 0) | 316 (sc->sc_rts ? UCDC_LINE_RTS : 0); 317 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 318 req.bRequest = UCDC_SET_CONTROL_LINE_STATE; 319 USETW(req.wValue, ls); 320 USETW(req.wIndex, sc->sc_iface_number); 321 USETW(req.wLength, 0); 322 323 (void)usbd_do_request(sc->sc_udev, &req, 0); 324 325 } 326 327 void 328 uplcom_set(void *addr, int portno, int reg, int onoff) 329 { 330 struct uplcom_softc *sc = addr; 331 332 switch (reg) { 333 case UCOM_SET_DTR: 334 uplcom_dtr(sc, onoff); 335 break; 336 case UCOM_SET_RTS: 337 uplcom_rts(sc, onoff); 338 break; 339 case UCOM_SET_BREAK: 340 #if 0 341 uplcom_break(sc, onoff); 342 #endif 343 break; 344 default: 345 break; 346 } 347 } 348 349 void 350 uplcom_dtr(struct uplcom_softc *sc, int onoff) 351 { 352 353 DPRINTF(("uplcom: onoff=%d\n", onoff)); 354 355 if (sc->sc_dtr == onoff) 356 return; 357 sc->sc_dtr = onoff; 358 359 uplcom_set_line_state(sc); 360 } 361 362 void 363 uplcom_rts(struct uplcom_softc *sc, int onoff) 364 { 365 366 DPRINTF(("uplcom_rts: onoff=%d\n", onoff)); 367 368 if (sc->sc_rts == onoff) 369 return; 370 sc->sc_rts = onoff; 371 372 uplcom_set_line_state(sc); 373 } 374 375 usbd_status 376 uplcom_set_line_coding(struct uplcom_softc *sc, usb_cdc_line_state_t *state) 377 { 378 usb_device_request_t req; 379 usbd_status err; 380 381 DPRINTF(("uplcom_set_line_coding: rate=%d fmt=%d parity=%d bits=%d\n", 382 UGETDW(state->dwDTERate), state->bCharFormat, 383 state->bParityType, state->bDataBits)); 384 385 if (memcmp(state, &sc->sc_line_state, UCDC_LINE_STATE_LENGTH) == 0) { 386 DPRINTF(("uplcom_set_line_coding: already set\n")); 387 return (USBD_NORMAL_COMPLETION); 388 } 389 390 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 391 req.bRequest = UCDC_SET_LINE_CODING; 392 USETW(req.wValue, 0); 393 USETW(req.wIndex, sc->sc_iface_number); 394 USETW(req.wLength, UCDC_LINE_STATE_LENGTH); 395 396 err = usbd_do_request(sc->sc_udev, &req, state); 397 if (err) { 398 DPRINTF(("uplcom_set_line_coding: failed, err=%s\n", 399 usbd_errstr(err))); 400 return (err); 401 } 402 403 sc->sc_line_state = *state; 404 405 return (USBD_NORMAL_COMPLETION); 406 } 407 408 int 409 uplcom_param(void *addr, int portno, struct termios *t) 410 { 411 struct uplcom_softc *sc = addr; 412 usbd_status err; 413 usb_cdc_line_state_t ls; 414 415 DPRINTF(("uplcom_param: sc=%p\n", sc)); 416 417 USETDW(ls.dwDTERate, t->c_ospeed); 418 if (ISSET(t->c_cflag, CSTOPB)) 419 ls.bCharFormat = UCDC_STOP_BIT_2; 420 else 421 ls.bCharFormat = UCDC_STOP_BIT_1; 422 if (ISSET(t->c_cflag, PARENB)) { 423 if (ISSET(t->c_cflag, PARODD)) 424 ls.bParityType = UCDC_PARITY_ODD; 425 else 426 ls.bParityType = UCDC_PARITY_EVEN; 427 } else 428 ls.bParityType = UCDC_PARITY_NONE; 429 switch (ISSET(t->c_cflag, CSIZE)) { 430 case CS5: 431 ls.bDataBits = 5; 432 break; 433 case CS6: 434 ls.bDataBits = 6; 435 break; 436 case CS7: 437 ls.bDataBits = 7; 438 break; 439 case CS8: 440 ls.bDataBits = 8; 441 break; 442 } 443 444 err = uplcom_set_line_coding(sc, &ls); 445 if (err) { 446 DPRINTF(("uplcom_param: err=%s\n", usbd_errstr(err))); 447 return (EIO); 448 } 449 return (0); 450 } 451
Indexes created Tue Sep 30 11:09:46 GMT 2025