| 1 | /* $NetBSD: umodem_common.c,v 1.24 2016/07/07 06:55:42 msaitoh Exp $ */ |
| 2 | |
| 3 | /* |
| 4 | * Copyright (c) 1998 The NetBSD Foundation, Inc. |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * This code is derived from software contributed to The NetBSD Foundation |
| 8 | * by Lennart Augustsson (lennart@augustsson.net) at |
| 9 | * Carlstedt Research & Technology. |
| 10 | * |
| 11 | * Redistribution and use in source and binary forms, with or without |
| 12 | * modification, are permitted provided that the following conditions |
| 13 | * are met: |
| 14 | * 1. Redistributions of source code must retain the above copyright |
| 15 | * notice, this list of conditions and the following disclaimer. |
| 16 | * 2. Redistributions in binary form must reproduce the above copyright |
| 17 | * notice, this list of conditions and the following disclaimer in the |
| 18 | * documentation and/or other materials provided with the distribution. |
| 19 | * |
| 20 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
| 21 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| 22 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 23 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
| 24 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 25 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 26 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 27 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 28 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 29 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 30 | * POSSIBILITY OF SUCH DAMAGE. |
| 31 | */ |
| 32 | |
| 33 | /* |
| 34 | * Comm Class spec: http://www.usb.org/developers/devclass_docs/usbccs10.pdf |
| 35 | * http://www.usb.org/developers/devclass_docs/usbcdc11.pdf |
| 36 | */ |
| 37 | |
| 38 | /* |
| 39 | * TODO: |
| 40 | * - Add error recovery in various places; the big problem is what |
| 41 | * to do in a callback if there is an error. |
| 42 | * - Implement a Call Device for modems without multiplexed commands. |
| 43 | * |
| 44 | */ |
| 45 | |
| 46 | #include <sys/cdefs.h> |
| 47 | __KERNEL_RCSID(0, "$NetBSD: umodem_common.c,v 1.24 2016/07/07 06:55:42 msaitoh Exp $" ); |
| 48 | |
| 49 | #include <sys/param.h> |
| 50 | #include <sys/systm.h> |
| 51 | #include <sys/kernel.h> |
| 52 | #include <sys/ioctl.h> |
| 53 | #include <sys/conf.h> |
| 54 | #include <sys/tty.h> |
| 55 | #include <sys/file.h> |
| 56 | #include <sys/select.h> |
| 57 | #include <sys/proc.h> |
| 58 | #include <sys/vnode.h> |
| 59 | #include <sys/device.h> |
| 60 | #include <sys/poll.h> |
| 61 | |
| 62 | #include <dev/usb/usb.h> |
| 63 | #include <dev/usb/usbcdc.h> |
| 64 | |
| 65 | #include <dev/usb/usbdi.h> |
| 66 | #include <dev/usb/usbdi_util.h> |
| 67 | #include <dev/usb/usbdevs.h> |
| 68 | #include <dev/usb/usb_quirks.h> |
| 69 | |
| 70 | #include <dev/usb/ucomvar.h> |
| 71 | #include <dev/usb/umodemvar.h> |
| 72 | |
| 73 | #ifdef UMODEM_DEBUG |
| 74 | #define DPRINTFN(n, x) if (umodemdebug > (n)) printf x |
| 75 | int umodemdebug = 0; |
| 76 | #else |
| 77 | #define DPRINTFN(n, x) |
| 78 | #endif |
| 79 | #define DPRINTF(x) DPRINTFN(0, x) |
| 80 | |
| 81 | /* |
| 82 | * These are the maximum number of bytes transferred per frame. |
| 83 | * If some really high speed devices should use this driver they |
| 84 | * may need to be increased, but this is good enough for normal modems. |
| 85 | * |
| 86 | * Note: increased from 64/256, to better support EVDO wireless PPP. |
| 87 | * The sizes should not be increased further, or there |
| 88 | * will be problems with contiguous storage allocation. |
| 89 | */ |
| 90 | #define UMODEMIBUFSIZE 4096 |
| 91 | #define UMODEMOBUFSIZE 4096 |
| 92 | |
| 93 | Static usbd_status umodem_set_comm_feature(struct umodem_softc *, |
| 94 | int, int); |
| 95 | Static usbd_status umodem_set_line_coding(struct umodem_softc *, |
| 96 | usb_cdc_line_state_t *); |
| 97 | |
| 98 | Static void umodem_dtr(struct umodem_softc *, int); |
| 99 | Static void umodem_rts(struct umodem_softc *, int); |
| 100 | Static void umodem_break(struct umodem_softc *, int); |
| 101 | Static void umodem_set_line_state(struct umodem_softc *); |
| 102 | Static void umodem_intr(struct usbd_xfer *, void *, usbd_status); |
| 103 | |
| 104 | int |
| 105 | umodem_common_attach(device_t self, struct umodem_softc *sc, |
| 106 | struct usbif_attach_arg *uiaa, struct ucom_attach_args *ucaa) |
| 107 | { |
| 108 | struct usbd_device *dev = uiaa->uiaa_device; |
| 109 | usb_interface_descriptor_t *id; |
| 110 | usb_endpoint_descriptor_t *ed; |
| 111 | char *devinfop; |
| 112 | usbd_status err; |
| 113 | int data_ifcno; |
| 114 | int i; |
| 115 | |
| 116 | sc->sc_dev = self; |
| 117 | sc->sc_udev = dev; |
| 118 | sc->sc_ctl_iface = uiaa->uiaa_iface; |
| 119 | |
| 120 | aprint_naive("\n" ); |
| 121 | aprint_normal("\n" ); |
| 122 | |
| 123 | id = usbd_get_interface_descriptor(sc->sc_ctl_iface); |
| 124 | devinfop = usbd_devinfo_alloc(uiaa->uiaa_device, 0); |
| 125 | aprint_normal_dev(self, "%s, iclass %d/%d\n" , |
| 126 | devinfop, id->bInterfaceClass, id->bInterfaceSubClass); |
| 127 | usbd_devinfo_free(devinfop); |
| 128 | |
| 129 | sc->sc_ctl_iface_no = id->bInterfaceNumber; |
| 130 | |
| 131 | /* Get the data interface no. */ |
| 132 | sc->sc_data_iface_no = data_ifcno = |
| 133 | umodem_get_caps(dev, &sc->sc_cm_cap, &sc->sc_acm_cap, id); |
| 134 | |
| 135 | if (data_ifcno == -1) { |
| 136 | aprint_error_dev(self, "no pointer to data interface\n" ); |
| 137 | goto bad; |
| 138 | } |
| 139 | |
| 140 | aprint_normal_dev(self, |
| 141 | "data interface %d, has %sCM over data, has %sbreak\n" , |
| 142 | data_ifcno, sc->sc_cm_cap & USB_CDC_CM_OVER_DATA ? "" : "no " , |
| 143 | sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK ? "" : "no " ); |
| 144 | |
| 145 | /* Get the data interface too. */ |
| 146 | for (i = 0; i < uiaa->uiaa_nifaces; i++) { |
| 147 | if (uiaa->uiaa_ifaces[i] != NULL) { |
| 148 | id = usbd_get_interface_descriptor(uiaa->uiaa_ifaces[i]); |
| 149 | if (id != NULL && id->bInterfaceNumber == data_ifcno) { |
| 150 | sc->sc_data_iface = uiaa->uiaa_ifaces[i]; |
| 151 | uiaa->uiaa_ifaces[i] = NULL; |
| 152 | } |
| 153 | } |
| 154 | } |
| 155 | if (sc->sc_data_iface == NULL) { |
| 156 | aprint_error_dev(self, "no data interface\n" ); |
| 157 | goto bad; |
| 158 | } |
| 159 | |
| 160 | /* |
| 161 | * Find the bulk endpoints. |
| 162 | * Iterate over all endpoints in the data interface and take note. |
| 163 | */ |
| 164 | ucaa->ucaa_bulkin = ucaa->ucaa_bulkout = -1; |
| 165 | |
| 166 | id = usbd_get_interface_descriptor(sc->sc_data_iface); |
| 167 | for (i = 0; i < id->bNumEndpoints; i++) { |
| 168 | ed = usbd_interface2endpoint_descriptor(sc->sc_data_iface, i); |
| 169 | if (ed == NULL) { |
| 170 | aprint_error_dev(self, |
| 171 | "no endpoint descriptor for %d\n)" , i); |
| 172 | goto bad; |
| 173 | } |
| 174 | if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && |
| 175 | (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) { |
| 176 | ucaa->ucaa_bulkin = ed->bEndpointAddress; |
| 177 | } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && |
| 178 | (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) { |
| 179 | ucaa->ucaa_bulkout = ed->bEndpointAddress; |
| 180 | } |
| 181 | } |
| 182 | |
| 183 | if (ucaa->ucaa_bulkin == -1) { |
| 184 | aprint_error_dev(self, "Could not find data bulk in\n" ); |
| 185 | goto bad; |
| 186 | } |
| 187 | if (ucaa->ucaa_bulkout == -1) { |
| 188 | aprint_error_dev(self, "Could not find data bulk out\n" ); |
| 189 | goto bad; |
| 190 | } |
| 191 | |
| 192 | if (usbd_get_quirks(sc->sc_udev)->uq_flags & UQ_ASSUME_CM_OVER_DATA) { |
| 193 | sc->sc_cm_over_data = 1; |
| 194 | } else { |
| 195 | if (sc->sc_cm_cap & USB_CDC_CM_OVER_DATA) { |
| 196 | if (sc->sc_acm_cap & USB_CDC_ACM_HAS_FEATURE) |
| 197 | err = umodem_set_comm_feature(sc, |
| 198 | UCDC_ABSTRACT_STATE, UCDC_DATA_MULTIPLEXED); |
| 199 | else |
| 200 | err = 0; |
| 201 | if (err) { |
| 202 | aprint_error_dev(self, |
| 203 | "could not set data multiplex mode\n" ); |
| 204 | goto bad; |
| 205 | } |
| 206 | sc->sc_cm_over_data = 1; |
| 207 | } |
| 208 | } |
| 209 | |
| 210 | /* |
| 211 | * The standard allows for notification messages (to indicate things |
| 212 | * like a modem hangup) to come in via an interrupt endpoint |
| 213 | * off of the control interface. Iterate over the endpoints on |
| 214 | * the control interface and see if there are any interrupt |
| 215 | * endpoints; if there are, then register it. |
| 216 | */ |
| 217 | |
| 218 | sc->sc_ctl_notify = -1; |
| 219 | sc->sc_notify_pipe = NULL; |
| 220 | |
| 221 | id = usbd_get_interface_descriptor(sc->sc_ctl_iface); |
| 222 | for (i = 0; i < id->bNumEndpoints; i++) { |
| 223 | ed = usbd_interface2endpoint_descriptor(sc->sc_ctl_iface, i); |
| 224 | if (ed == NULL) |
| 225 | continue; |
| 226 | |
| 227 | if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && |
| 228 | (ed->bmAttributes & UE_XFERTYPE) == UE_INTERRUPT) { |
| 229 | aprint_error_dev(self, |
| 230 | "status change notification available\n" ); |
| 231 | sc->sc_ctl_notify = ed->bEndpointAddress; |
| 232 | } |
| 233 | } |
| 234 | |
| 235 | sc->sc_dtr = -1; |
| 236 | |
| 237 | /* ucaa_bulkin, ucaa_bulkout set above */ |
| 238 | ucaa->ucaa_ibufsize = UMODEMIBUFSIZE; |
| 239 | ucaa->ucaa_obufsize = UMODEMOBUFSIZE; |
| 240 | ucaa->ucaa_ibufsizepad = UMODEMIBUFSIZE; |
| 241 | ucaa->ucaa_opkthdrlen = 0; |
| 242 | ucaa->ucaa_device = sc->sc_udev; |
| 243 | ucaa->ucaa_iface = sc->sc_data_iface; |
| 244 | ucaa->ucaa_arg = sc; |
| 245 | |
| 246 | usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, sc->sc_dev); |
| 247 | |
| 248 | DPRINTF(("umodem_common_attach: sc=%p\n" , sc)); |
| 249 | sc->sc_subdev = config_found_sm_loc(self, "ucombus" , NULL, ucaa, |
| 250 | ucomprint, ucomsubmatch); |
| 251 | |
| 252 | return 0; |
| 253 | |
| 254 | bad: |
| 255 | sc->sc_dying = 1; |
| 256 | return 1; |
| 257 | } |
| 258 | |
| 259 | int |
| 260 | umodem_open(void *addr, int portno) |
| 261 | { |
| 262 | struct umodem_softc *sc = addr; |
| 263 | int err; |
| 264 | |
| 265 | DPRINTF(("umodem_open: sc=%p\n" , sc)); |
| 266 | |
| 267 | if (sc->sc_ctl_notify != -1 && sc->sc_notify_pipe == NULL) { |
| 268 | err = usbd_open_pipe_intr(sc->sc_ctl_iface, sc->sc_ctl_notify, |
| 269 | USBD_SHORT_XFER_OK, &sc->sc_notify_pipe, sc, |
| 270 | &sc->sc_notify_buf, sizeof(sc->sc_notify_buf), |
| 271 | umodem_intr, USBD_DEFAULT_INTERVAL); |
| 272 | |
| 273 | if (err) { |
| 274 | DPRINTF(("Failed to establish notify pipe: %s\n" , |
| 275 | usbd_errstr(err))); |
| 276 | return EIO; |
| 277 | } |
| 278 | } |
| 279 | |
| 280 | return 0; |
| 281 | } |
| 282 | |
| 283 | void |
| 284 | umodem_close(void *addr, int portno) |
| 285 | { |
| 286 | struct umodem_softc *sc = addr; |
| 287 | int err; |
| 288 | |
| 289 | DPRINTF(("umodem_close: sc=%p\n" , sc)); |
| 290 | |
| 291 | if (sc->sc_notify_pipe != NULL) { |
| 292 | err = usbd_abort_pipe(sc->sc_notify_pipe); |
| 293 | if (err) |
| 294 | printf("%s: abort notify pipe failed: %s\n" , |
| 295 | device_xname(sc->sc_dev), usbd_errstr(err)); |
| 296 | err = usbd_close_pipe(sc->sc_notify_pipe); |
| 297 | if (err) |
| 298 | printf("%s: close notify pipe failed: %s\n" , |
| 299 | device_xname(sc->sc_dev), usbd_errstr(err)); |
| 300 | sc->sc_notify_pipe = NULL; |
| 301 | } |
| 302 | } |
| 303 | |
| 304 | Static void |
| 305 | umodem_intr(struct usbd_xfer *xfer, void *priv, |
| 306 | usbd_status status) |
| 307 | { |
| 308 | struct umodem_softc *sc = priv; |
| 309 | u_char mstatus; |
| 310 | |
| 311 | if (sc->sc_dying) |
| 312 | return; |
| 313 | |
| 314 | if (status != USBD_NORMAL_COMPLETION) { |
| 315 | if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) |
| 316 | return; |
| 317 | printf("%s: abnormal status: %s\n" , device_xname(sc->sc_dev), |
| 318 | usbd_errstr(status)); |
| 319 | if (status == USBD_STALLED) |
| 320 | usbd_clear_endpoint_stall_async(sc->sc_notify_pipe); |
| 321 | return; |
| 322 | } |
| 323 | |
| 324 | if (sc->sc_notify_buf.bmRequestType != UCDC_NOTIFICATION) { |
| 325 | DPRINTF(("%s: unknown message type (%02x) on notify pipe\n" , |
| 326 | device_xname(sc->sc_dev), |
| 327 | sc->sc_notify_buf.bmRequestType)); |
| 328 | return; |
| 329 | } |
| 330 | |
| 331 | switch (sc->sc_notify_buf.bNotification) { |
| 332 | case UCDC_N_SERIAL_STATE: |
| 333 | /* |
| 334 | * Set the serial state in ucom driver based on |
| 335 | * the bits from the notify message |
| 336 | */ |
| 337 | if (UGETW(sc->sc_notify_buf.wLength) != 2) { |
| 338 | printf("%s: Invalid notification length! (%d)\n" , |
| 339 | device_xname(sc->sc_dev), |
| 340 | UGETW(sc->sc_notify_buf.wLength)); |
| 341 | break; |
| 342 | } |
| 343 | DPRINTF(("%s: notify bytes = %02x%02x\n" , |
| 344 | device_xname(sc->sc_dev), |
| 345 | sc->sc_notify_buf.data[0], |
| 346 | sc->sc_notify_buf.data[1])); |
| 347 | /* Currently, lsr is always zero. */ |
| 348 | sc->sc_lsr = sc->sc_msr = 0; |
| 349 | mstatus = sc->sc_notify_buf.data[0]; |
| 350 | |
| 351 | if (ISSET(mstatus, UCDC_N_SERIAL_RI)) |
| 352 | sc->sc_msr |= UMSR_RI; |
| 353 | if (ISSET(mstatus, UCDC_N_SERIAL_DSR)) |
| 354 | sc->sc_msr |= UMSR_DSR; |
| 355 | if (ISSET(mstatus, UCDC_N_SERIAL_DCD)) |
| 356 | sc->sc_msr |= UMSR_DCD; |
| 357 | ucom_status_change(device_private(sc->sc_subdev)); |
| 358 | break; |
| 359 | default: |
| 360 | DPRINTF(("%s: unknown notify message: %02x\n" , |
| 361 | device_xname(sc->sc_dev), |
| 362 | sc->sc_notify_buf.bNotification)); |
| 363 | break; |
| 364 | } |
| 365 | } |
| 366 | |
| 367 | int |
| 368 | umodem_get_caps(struct usbd_device *dev, int *cm, int *acm, |
| 369 | usb_interface_descriptor_t *id) |
| 370 | { |
| 371 | const usb_cdc_cm_descriptor_t *cmd; |
| 372 | const usb_cdc_acm_descriptor_t *cad; |
| 373 | const usb_cdc_union_descriptor_t *cud; |
| 374 | uint32_t uq_flags; |
| 375 | |
| 376 | *cm = *acm = 0; |
| 377 | uq_flags = usbd_get_quirks(dev)->uq_flags; |
| 378 | |
| 379 | if (uq_flags & UQ_NO_UNION_NRM) { |
| 380 | DPRINTF(("umodem_get_caps: NO_UNION_NRM quirk - returning 0\n" )); |
| 381 | return 0; |
| 382 | } |
| 383 | |
| 384 | if (uq_flags & UQ_LOST_CS_DESC) |
| 385 | id = NULL; |
| 386 | |
| 387 | cmd = (const usb_cdc_cm_descriptor_t *)usb_find_desc_if(dev, |
| 388 | UDESC_CS_INTERFACE, |
| 389 | UDESCSUB_CDC_CM, id); |
| 390 | if (cmd == NULL) { |
| 391 | DPRINTF(("umodem_get_caps: no CM desc\n" )); |
| 392 | } else { |
| 393 | *cm = cmd->bmCapabilities; |
| 394 | } |
| 395 | |
| 396 | cad = (const usb_cdc_acm_descriptor_t *)usb_find_desc_if(dev, |
| 397 | UDESC_CS_INTERFACE, |
| 398 | UDESCSUB_CDC_ACM, |
| 399 | id); |
| 400 | if (cad == NULL) { |
| 401 | DPRINTF(("umodem_get_caps: no ACM desc\n" )); |
| 402 | } else { |
| 403 | *acm = cad->bmCapabilities; |
| 404 | } |
| 405 | |
| 406 | cud = (const usb_cdc_union_descriptor_t *)usb_find_desc_if(dev, |
| 407 | UDESC_CS_INTERFACE, |
| 408 | UDESCSUB_CDC_UNION, |
| 409 | id); |
| 410 | if (cud == NULL) { |
| 411 | DPRINTF(("umodem_get_caps: no UNION desc\n" )); |
| 412 | } |
| 413 | |
| 414 | return cmd ? cmd->bDataInterface : cud ? cud->bSlaveInterface[0] : -1; |
| 415 | } |
| 416 | |
| 417 | void |
| 418 | umodem_get_status(void *addr, int portno, u_char *lsr, u_char *msr) |
| 419 | { |
| 420 | struct umodem_softc *sc = addr; |
| 421 | |
| 422 | DPRINTF(("umodem_get_status:\n" )); |
| 423 | |
| 424 | if (lsr != NULL) |
| 425 | *lsr = sc->sc_lsr; |
| 426 | if (msr != NULL) |
| 427 | *msr = sc->sc_msr; |
| 428 | } |
| 429 | |
| 430 | int |
| 431 | umodem_param(void *addr, int portno, struct termios *t) |
| 432 | { |
| 433 | struct umodem_softc *sc = addr; |
| 434 | usbd_status err; |
| 435 | usb_cdc_line_state_t ls; |
| 436 | |
| 437 | DPRINTF(("umodem_param: sc=%p\n" , sc)); |
| 438 | |
| 439 | USETDW(ls.dwDTERate, t->c_ospeed); |
| 440 | if (ISSET(t->c_cflag, CSTOPB)) |
| 441 | ls.bCharFormat = UCDC_STOP_BIT_2; |
| 442 | else |
| 443 | ls.bCharFormat = UCDC_STOP_BIT_1; |
| 444 | if (ISSET(t->c_cflag, PARENB)) { |
| 445 | if (ISSET(t->c_cflag, PARODD)) |
| 446 | ls.bParityType = UCDC_PARITY_ODD; |
| 447 | else |
| 448 | ls.bParityType = UCDC_PARITY_EVEN; |
| 449 | } else |
| 450 | ls.bParityType = UCDC_PARITY_NONE; |
| 451 | switch (ISSET(t->c_cflag, CSIZE)) { |
| 452 | case CS5: |
| 453 | ls.bDataBits = 5; |
| 454 | break; |
| 455 | case CS6: |
| 456 | ls.bDataBits = 6; |
| 457 | break; |
| 458 | case CS7: |
| 459 | ls.bDataBits = 7; |
| 460 | break; |
| 461 | case CS8: |
| 462 | ls.bDataBits = 8; |
| 463 | break; |
| 464 | } |
| 465 | |
| 466 | err = umodem_set_line_coding(sc, &ls); |
| 467 | if (err) { |
| 468 | DPRINTF(("umodem_param: err=%s\n" , usbd_errstr(err))); |
| 469 | return EPASSTHROUGH; |
| 470 | } |
| 471 | return 0; |
| 472 | } |
| 473 | |
| 474 | int |
| 475 | umodem_ioctl(void *addr, int portno, u_long cmd, void *data, |
| 476 | int flag, proc_t *p) |
| 477 | { |
| 478 | struct umodem_softc *sc = addr; |
| 479 | int error = 0; |
| 480 | |
| 481 | if (sc->sc_dying) |
| 482 | return EIO; |
| 483 | |
| 484 | DPRINTF(("umodem_ioctl: cmd=0x%08lx\n" , cmd)); |
| 485 | |
| 486 | switch (cmd) { |
| 487 | case USB_GET_CM_OVER_DATA: |
| 488 | *(int *)data = sc->sc_cm_over_data; |
| 489 | break; |
| 490 | |
| 491 | case USB_SET_CM_OVER_DATA: |
| 492 | if (*(int *)data != sc->sc_cm_over_data) { |
| 493 | /* XXX change it */ |
| 494 | } |
| 495 | break; |
| 496 | |
| 497 | default: |
| 498 | DPRINTF(("umodem_ioctl: unknown\n" )); |
| 499 | error = EPASSTHROUGH; |
| 500 | break; |
| 501 | } |
| 502 | |
| 503 | return error; |
| 504 | } |
| 505 | |
| 506 | void |
| 507 | umodem_dtr(struct umodem_softc *sc, int onoff) |
| 508 | { |
| 509 | DPRINTF(("umodem_dtr: onoff=%d\n" , onoff)); |
| 510 | |
| 511 | if (sc->sc_dtr == onoff) |
| 512 | return; |
| 513 | sc->sc_dtr = onoff; |
| 514 | |
| 515 | umodem_set_line_state(sc); |
| 516 | } |
| 517 | |
| 518 | void |
| 519 | umodem_rts(struct umodem_softc *sc, int onoff) |
| 520 | { |
| 521 | DPRINTF(("umodem_rts: onoff=%d\n" , onoff)); |
| 522 | |
| 523 | if (sc->sc_rts == onoff) |
| 524 | return; |
| 525 | sc->sc_rts = onoff; |
| 526 | |
| 527 | umodem_set_line_state(sc); |
| 528 | } |
| 529 | |
| 530 | void |
| 531 | umodem_set_line_state(struct umodem_softc *sc) |
| 532 | { |
| 533 | usb_device_request_t req; |
| 534 | int ls; |
| 535 | |
| 536 | ls = (sc->sc_dtr ? UCDC_LINE_DTR : 0) | |
| 537 | (sc->sc_rts ? UCDC_LINE_RTS : 0); |
| 538 | req.bmRequestType = UT_WRITE_CLASS_INTERFACE; |
| 539 | req.bRequest = UCDC_SET_CONTROL_LINE_STATE; |
| 540 | USETW(req.wValue, ls); |
| 541 | USETW(req.wIndex, sc->sc_ctl_iface_no); |
| 542 | USETW(req.wLength, 0); |
| 543 | |
| 544 | (void)usbd_do_request(sc->sc_udev, &req, 0); |
| 545 | |
| 546 | } |
| 547 | |
| 548 | void |
| 549 | umodem_break(struct umodem_softc *sc, int onoff) |
| 550 | { |
| 551 | usb_device_request_t req; |
| 552 | |
| 553 | DPRINTF(("umodem_break: onoff=%d\n" , onoff)); |
| 554 | |
| 555 | if (!(sc->sc_acm_cap & USB_CDC_ACM_HAS_BREAK)) |
| 556 | return; |
| 557 | |
| 558 | req.bmRequestType = UT_WRITE_CLASS_INTERFACE; |
| 559 | req.bRequest = UCDC_SEND_BREAK; |
| 560 | USETW(req.wValue, onoff ? UCDC_BREAK_ON : UCDC_BREAK_OFF); |
| 561 | USETW(req.wIndex, sc->sc_ctl_iface_no); |
| 562 | USETW(req.wLength, 0); |
| 563 | |
| 564 | (void)usbd_do_request(sc->sc_udev, &req, 0); |
| 565 | } |
| 566 | |
| 567 | void |
| 568 | umodem_set(void *addr, int portno, int reg, int onoff) |
| 569 | { |
| 570 | struct umodem_softc *sc = addr; |
| 571 | |
| 572 | switch (reg) { |
| 573 | case UCOM_SET_DTR: |
| 574 | umodem_dtr(sc, onoff); |
| 575 | break; |
| 576 | case UCOM_SET_RTS: |
| 577 | umodem_rts(sc, onoff); |
| 578 | break; |
| 579 | case UCOM_SET_BREAK: |
| 580 | umodem_break(sc, onoff); |
| 581 | break; |
| 582 | default: |
| 583 | break; |
| 584 | } |
| 585 | } |
| 586 | |
| 587 | usbd_status |
| 588 | umodem_set_line_coding(struct umodem_softc *sc, usb_cdc_line_state_t *state) |
| 589 | { |
| 590 | usb_device_request_t req; |
| 591 | usbd_status err; |
| 592 | |
| 593 | DPRINTF(("umodem_set_line_coding: rate=%d fmt=%d parity=%d bits=%d\n" , |
| 594 | UGETDW(state->dwDTERate), state->bCharFormat, |
| 595 | state->bParityType, state->bDataBits)); |
| 596 | |
| 597 | if (memcmp(state, &sc->sc_line_state, UCDC_LINE_STATE_LENGTH) == 0) { |
| 598 | DPRINTF(("umodem_set_line_coding: already set\n" )); |
| 599 | return USBD_NORMAL_COMPLETION; |
| 600 | } |
| 601 | |
| 602 | req.bmRequestType = UT_WRITE_CLASS_INTERFACE; |
| 603 | req.bRequest = UCDC_SET_LINE_CODING; |
| 604 | USETW(req.wValue, 0); |
| 605 | USETW(req.wIndex, sc->sc_ctl_iface_no); |
| 606 | USETW(req.wLength, UCDC_LINE_STATE_LENGTH); |
| 607 | |
| 608 | err = usbd_do_request(sc->sc_udev, &req, state); |
| 609 | if (err) { |
| 610 | DPRINTF(("umodem_set_line_coding: failed, err=%s\n" , |
| 611 | usbd_errstr(err))); |
| 612 | return err; |
| 613 | } |
| 614 | |
| 615 | sc->sc_line_state = *state; |
| 616 | |
| 617 | return USBD_NORMAL_COMPLETION; |
| 618 | } |
| 619 | |
| 620 | usbd_status |
| 621 | umodem_set_comm_feature(struct umodem_softc *sc, int feature, int state) |
| 622 | { |
| 623 | usb_device_request_t req; |
| 624 | usbd_status err; |
| 625 | usb_cdc_abstract_state_t ast; |
| 626 | |
| 627 | DPRINTF(("umodem_set_comm_feature: feature=%d state=%d\n" , feature, |
| 628 | state)); |
| 629 | |
| 630 | req.bmRequestType = UT_WRITE_CLASS_INTERFACE; |
| 631 | req.bRequest = UCDC_SET_COMM_FEATURE; |
| 632 | USETW(req.wValue, feature); |
| 633 | USETW(req.wIndex, sc->sc_ctl_iface_no); |
| 634 | USETW(req.wLength, UCDC_ABSTRACT_STATE_LENGTH); |
| 635 | USETW(ast.wState, state); |
| 636 | |
| 637 | err = usbd_do_request(sc->sc_udev, &req, &ast); |
| 638 | if (err) { |
| 639 | DPRINTF(("umodem_set_comm_feature: feature=%d, err=%s\n" , |
| 640 | feature, usbd_errstr(err))); |
| 641 | return err; |
| 642 | } |
| 643 | |
| 644 | return USBD_NORMAL_COMPLETION; |
| 645 | } |
| 646 | |
| 647 | int |
| 648 | umodem_common_activate(struct umodem_softc *sc, enum devact act) |
| 649 | { |
| 650 | switch (act) { |
| 651 | case DVACT_DEACTIVATE: |
| 652 | sc->sc_dying = 1; |
| 653 | return 0; |
| 654 | default: |
| 655 | return EOPNOTSUPP; |
| 656 | } |
| 657 | } |
| 658 | |
| 659 | void |
| 660 | umodem_common_childdet(struct umodem_softc *sc, device_t child) |
| 661 | { |
| 662 | KASSERT(sc->sc_subdev == child); |
| 663 | sc->sc_subdev = NULL; |
| 664 | } |
| 665 | |
| 666 | int |
| 667 | umodem_common_detach(struct umodem_softc *sc, int flags) |
| 668 | { |
| 669 | int rv = 0; |
| 670 | |
| 671 | DPRINTF(("umodem_common_detach: sc=%p flags=%d\n" , sc, flags)); |
| 672 | |
| 673 | sc->sc_dying = 1; |
| 674 | |
| 675 | if (sc->sc_subdev != NULL) |
| 676 | rv = config_detach(sc->sc_subdev, flags); |
| 677 | |
| 678 | usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, sc->sc_dev); |
| 679 | |
| 680 | return rv; |
| 681 | } |
| 682 | |