ulpt.c revision 1.2
1 /* $NetBSD: ulpt.c,v 1.2 1998/07/25 15:19:09 augustss Exp $ */ 2 3 /* 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * Author: Lennart Augustsson <augustss (at) carlstedt.se> 8 * Carlstedt Research & Technology 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 <sys/param.h> 40 #include <sys/systm.h> 41 #include <sys/proc.h> 42 #include <sys/user.h> 43 #include <sys/malloc.h> 44 #include <sys/kernel.h> 45 #include <sys/ioctl.h> 46 #include <sys/uio.h> 47 #include <sys/device.h> 48 #include <sys/conf.h> 49 #include <sys/syslog.h> 50 51 #include <dev/usb/usb.h> 52 #include <dev/usb/usbdi.h> 53 #include <dev/usb/usbdi_util.h> 54 #include <dev/usb/usbdevs.h> 55 #include <dev/usb/usb_quirks.h> 56 57 #define TIMEOUT hz*16 /* wait up to 16 seconds for a ready */ 58 #define STEP hz/4 59 60 #define LPTPRI (PZERO+8) 61 #define ULPT_BSIZE 1024 62 63 #ifdef USB_DEBUG 64 #define DPRINTF(x) if (ulptdebug) printf x 65 #define DPRINTFN(n,x) if (ulptdebug>(n)) printf x 66 int ulptdebug = 0; 67 #else 68 #define DPRINTF(x) 69 #define DPRINTFN(n,x) 70 #endif 71 72 #define UR_GET_DEVICE_ID 0 73 #define UR_GET_PORT_STATUS 1 74 #define UR_SOFT_RESET 2 75 76 #define LPS_NERR 0x08 /* printer no error */ 77 #define LPS_SELECT 0x10 /* printer selected */ 78 #define LPS_NOPAPER 0x20 /* printer out of paper */ 79 #define LPS_INVERT (LPS_SELECT|LPS_NERR) 80 #define LPS_MASK (LPS_SELECT|LPS_NERR|LPS_NOPAPER) 81 82 struct ulpt_softc { 83 struct device sc_dev; 84 usbd_device_handle sc_udev; /* device */ 85 usbd_interface_handle sc_iface; /* interface */ 86 int sc_ifaceno; 87 usbd_pipe_handle sc_bulkpipe; /* bulk pipe */ 88 int sc_bulk; 89 90 u_char sc_state; 91 #define ULPT_OPEN 0x01 /* device is open */ 92 #define ULPT_OBUSY 0x02 /* printer is busy doing output */ 93 #define ULPT_INIT 0x04 /* waiting to initialize for open */ 94 u_char sc_flags; 95 #define ULPT_NOPRIME 0x40 /* don't prime on open */ 96 u_char sc_laststatus; 97 }; 98 99 int ulpt_match __P((struct device *, struct cfdata *, void *)); 100 void ulpt_attach __P((struct device *, struct device *, void *)); 101 102 int ulptopen __P((dev_t, int, int, struct proc *)); 103 int ulptclose __P((dev_t, int, int, struct proc *p)); 104 int ulptwrite __P((dev_t, struct uio *uio, int)); 105 int ulptioctl __P((dev_t, u_long, caddr_t, int, struct proc *)); 106 void ulpt_disco __P((void *)); 107 108 int ulpt_status __P((struct ulpt_softc *)); 109 void ulpt_reset __P((struct ulpt_softc *)); 110 int ulpt_statusmsg __P((u_char, struct ulpt_softc *)); 111 112 extern struct cfdriver ulpt_cd; 113 114 #define ULPTUNIT(s) (minor(s) & 0x1f) 115 #define ULPTFLAGS(s) (minor(s) & 0xe0) 116 117 extern struct cfdriver ulpt_cd; 118 119 struct cfattach ulpt_ca = { 120 sizeof(struct ulpt_softc), ulpt_match, ulpt_attach 121 }; 122 123 int 124 ulpt_match(parent, match, aux) 125 struct device *parent; 126 struct cfdata *match; 127 void *aux; 128 { 129 struct usb_attach_arg *uaa = aux; 130 usb_interface_descriptor_t *id; 131 132 DPRINTFN(10,("ulpt_match\n")); 133 if (!uaa->iface) 134 return (UMATCH_NONE); 135 id = usbd_get_interface_descriptor(uaa->iface); 136 if (id->bInterfaceClass == UCLASS_PRINTER && 137 id->bInterfaceSubClass == USUBCLASS_PRINTER && 138 (id->bInterfaceProtocol == UPROTO_PRINTER_UNI || 139 id->bInterfaceProtocol == UPROTO_PRINTER_BI)) 140 return (UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO); 141 return (UMATCH_NONE); 142 } 143 144 void 145 ulpt_attach(parent, self, aux) 146 struct device *parent; 147 struct device *self; 148 void *aux; 149 { 150 struct ulpt_softc *sc = (struct ulpt_softc *)self; 151 struct usb_attach_arg *uaa = aux; 152 usbd_device_handle dev = uaa->device; 153 usbd_interface_handle iface = uaa->iface; 154 usb_interface_descriptor_t *id = usbd_get_interface_descriptor(iface); 155 #if 0 156 usb_config_descriptor_t *cd = usbd_get_config_descriptor(dev); 157 usb_device_request_t req; 158 #endif 159 char devinfo[1024]; 160 usb_endpoint_descriptor_t *ed; 161 usbd_status r; 162 163 DPRINTFN(2,("ulpt_attach: sc=%p\n", sc)); 164 usbd_devinfo(dev, 0, devinfo); 165 printf(": %s (interface class %d/%d)\n", devinfo, 166 id->bInterfaceClass, id->bInterfaceSubClass); 167 168 /* Figure out which endpoint is the bulk out endpoint. */ 169 ed = usbd_interface2endpoint_descriptor(iface, 0); 170 if (!ed) 171 goto nobulk; 172 if ((ed->bEndpointAddress & UE_IN) != UE_OUT || 173 (ed->bmAttributes & UE_XFERTYPE) != UE_BULK) { 174 /* In case we are using a bidir protocol... */ 175 ed = usbd_interface2endpoint_descriptor(iface, 1); 176 if (!ed) 177 goto nobulk; 178 if ((ed->bEndpointAddress & UE_IN) != UE_OUT || 179 (ed->bmAttributes & UE_XFERTYPE) != UE_BULK) 180 goto nobulk; 181 } 182 sc->sc_bulk = ed->bEndpointAddress; 183 DPRINTFN(1, ("ulpt_attach: bulk=%d\n", sc->sc_bulk)); 184 185 sc->sc_iface = iface; 186 r = usbd_interface2device_handle(iface, &sc->sc_udev); 187 if (r != USBD_NORMAL_COMPLETION) 188 return; 189 sc->sc_ifaceno = id->bInterfaceNumber; 190 191 #if 0 192 XXX needs a different way to read the id string since the length 193 is unknown. usbd_do_request() returns error on a short transfer. 194 req.bmRequestType = UT_READ_CLASS_INTERFACE; 195 req.bRequest = UR_GET_DEVICE_ID; 196 USETW(req.wValue, cd->bConfigurationValue); 197 USETW2(req.wIndex, id->bInterfaceNumber, id->bAlternateSetting); 198 USETW(req.wLength, sizeof devinfo - 1); 199 r = usbd_do_request(dev, &req, devinfo); 200 if (r == USBD_NORMAL_COMPLETION) { 201 int len; 202 char *idstr; 203 len = (devinfo[0] << 8) | (devinfo[1] & 0xff); 204 /* devinfo now contains an IEEE-1284 device ID */ 205 idstr = devinfo+2; 206 idstr[len] = 0; 207 printf("%s: device id <%s>\n", sc->sc_dev.dv_xname, idstr); 208 } else { 209 printf("%s: cannot get device id\n", sc->sc_dev.dv_xname); 210 } 211 #endif 212 213 return; 214 215 nobulk: 216 printf("%s: could not find bulk endpoint\n", sc->sc_dev.dv_xname); 217 return; 218 } 219 220 int 221 ulpt_status(sc) 222 struct ulpt_softc *sc; 223 { 224 usb_device_request_t req; 225 usbd_status r; 226 u_char status; 227 228 req.bmRequestType = UT_READ_CLASS_INTERFACE; 229 req.bRequest = UR_GET_PORT_STATUS; 230 USETW(req.wValue, 0); 231 USETW(req.wIndex, sc->sc_ifaceno); 232 USETW(req.wLength, 1); 233 r = usbd_do_request(sc->sc_udev, &req, &status); 234 DPRINTFN(1, ("ulpt_status: status=0x%02x r=%d\n", status, r)); 235 if (r == USBD_NORMAL_COMPLETION) 236 return (status); 237 else 238 return (0); 239 } 240 241 void 242 ulpt_reset(sc) 243 struct ulpt_softc *sc; 244 { 245 usb_device_request_t req; 246 247 DPRINTFN(1, ("ulpt_reset\n")); 248 req.bmRequestType = UT_WRITE_CLASS_OTHER; 249 req.bRequest = UR_SOFT_RESET; 250 USETW(req.wValue, 0); 251 USETW(req.wIndex, sc->sc_ifaceno); 252 USETW(req.wLength, 0); 253 (void)usbd_do_request(sc->sc_udev, &req, 0); 254 } 255 256 /* 257 * Reset the printer, then wait until it's selected and not busy. 258 */ 259 int 260 ulptopen(dev, flag, mode, p) 261 dev_t dev; 262 int flag; 263 int mode; 264 struct proc *p; 265 { 266 int unit = ULPTUNIT(dev); 267 u_char flags = ULPTFLAGS(dev); 268 struct ulpt_softc *sc; 269 usbd_status r; 270 int spin, error; 271 272 if (unit >= ulpt_cd.cd_ndevs) 273 return ENXIO; 274 sc = ulpt_cd.cd_devs[unit]; 275 if (!sc || !sc->sc_iface) 276 return ENXIO; 277 278 if (sc->sc_state) 279 return EBUSY; 280 281 sc->sc_state = ULPT_INIT; 282 sc->sc_flags = flags; 283 DPRINTF(("ulptopen: flags=0x%x\n", (unsigned)flags)); 284 285 if ((flags & ULPT_NOPRIME) == 0) 286 ulpt_reset(sc); 287 288 for (spin = 0; (ulpt_status(sc) & LPS_SELECT) == 0; spin += STEP) { 289 if (spin >= TIMEOUT) { 290 sc->sc_state = 0; 291 return EBUSY; 292 } 293 294 /* wait 1/4 second, give up if we get a signal */ 295 error = tsleep((caddr_t)sc, LPTPRI | PCATCH, "ulptop", STEP); 296 if (error != EWOULDBLOCK) { 297 sc->sc_state = 0; 298 return error; 299 } 300 } 301 302 r = usbd_open_pipe(sc->sc_iface, sc->sc_bulk, 0, &sc->sc_bulkpipe); 303 if (r != USBD_NORMAL_COMPLETION) { 304 sc->sc_state = 0; 305 return (EIO); 306 } 307 308 sc->sc_state = ULPT_OPEN; 309 310 DPRINTF(("ulptopen: done\n")); 311 return (0); 312 } 313 314 int 315 ulpt_statusmsg(status, sc) 316 u_char status; 317 struct ulpt_softc *sc; 318 { 319 u_char new; 320 321 status = (status ^ LPS_INVERT) & LPS_MASK; 322 new = status & ~sc->sc_laststatus; 323 sc->sc_laststatus = status; 324 325 if (new & LPS_SELECT) 326 log(LOG_NOTICE, "%s: offline\n", sc->sc_dev.dv_xname); 327 else if (new & LPS_NOPAPER) 328 log(LOG_NOTICE, "%s: out of paper\n", sc->sc_dev.dv_xname); 329 else if (new & LPS_NERR) 330 log(LOG_NOTICE, "%s: output error\n", sc->sc_dev.dv_xname); 331 332 return status; 333 } 334 335 int 336 ulptclose(dev, flag, mode, p) 337 dev_t dev; 338 int flag; 339 int mode; 340 struct proc *p; 341 { 342 int unit = ULPTUNIT(dev); 343 struct ulpt_softc *sc = ulpt_cd.cd_devs[unit]; 344 345 usbd_close_pipe(sc->sc_bulkpipe); 346 347 sc->sc_state = 0; 348 349 DPRINTF(("ulptclose: closed\n")); 350 return (0); 351 } 352 353 int 354 ulptwrite(dev, uio, flags) 355 dev_t dev; 356 struct uio *uio; 357 int flags; 358 { 359 struct ulpt_softc *sc = ulpt_cd.cd_devs[ULPTUNIT(dev)]; 360 size_t n; 361 int error = 0; 362 char buf[ULPT_BSIZE]; 363 usbd_request_handle reqh; 364 usbd_status r; 365 366 DPRINTF(("ulptwrite\n")); 367 reqh = usbd_alloc_request(); 368 if (reqh == 0) 369 return (EIO); 370 while ((n = min(ULPT_BSIZE, uio->uio_resid)) != 0) { 371 ulpt_statusmsg(ulpt_status(sc), sc); 372 uiomove(buf, n, uio); 373 /* XXX use callback to enable interrupt? */ 374 r = usbd_setup_request(reqh, sc->sc_bulkpipe, 0, buf, n, 375 0, USBD_NO_TIMEOUT, 0); 376 if (r != USBD_NORMAL_COMPLETION) { 377 error = EIO; 378 break; 379 } 380 DPRINTFN(1, ("ulptwrite: transfer %d bytes\n", n)); 381 r = usbd_sync_transfer(reqh); 382 if (r != USBD_NORMAL_COMPLETION) { 383 DPRINTF(("ulptwrite: error=%d\n", r)); 384 usbd_clear_endpoint_stall(sc->sc_bulkpipe); 385 error = EIO; 386 break; 387 } 388 } 389 usbd_free_request(reqh); 390 return (error); 391 } 392 393 int 394 ulptioctl(dev, cmd, data, flag, p) 395 dev_t dev; 396 u_long cmd; 397 caddr_t data; 398 int flag; 399 struct proc *p; 400 { 401 int error = 0; 402 403 switch (cmd) { 404 default: 405 error = ENODEV; 406 } 407 408 return error; 409 } 410
Indexes created Tue Sep 30 11:09:46 GMT 2025