| 1 | /* $NetBSD: u3g.c,v 1.32 2016/04/23 10:15:32 skrll Exp $ */ |
| 2 | |
| 3 | /*- |
| 4 | * Copyright (c) 2009 The NetBSD Foundation, Inc. |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * This code is derived from software contributed to The NetBSD Foundation. |
| 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 | * |
| 18 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
| 19 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| 20 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 21 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
| 22 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 23 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 24 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 25 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 26 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 27 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 28 | * POSSIBILITY OF SUCH DAMAGE. |
| 29 | */ |
| 30 | |
| 31 | /* |
| 32 | * Copyright (c) 2008 AnyWi Technologies |
| 33 | * Author: Andrea Guzzo <aguzzo@anywi.com> |
| 34 | * * based on uark.c 1.1 2006/08/14 08:30:22 jsg * |
| 35 | * * parts from ubsa.c 183348 2008-09-25 12:00:56Z phk * |
| 36 | * |
| 37 | * Permission to use, copy, modify, and distribute this software for any |
| 38 | * purpose with or without fee is hereby granted, provided that the above |
| 39 | * copyright notice and this permission notice appear in all copies. |
| 40 | * |
| 41 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| 42 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| 43 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| 44 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 45 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| 46 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| 47 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 48 | * |
| 49 | * $FreeBSD$ |
| 50 | */ |
| 51 | |
| 52 | #include <sys/cdefs.h> |
| 53 | __KERNEL_RCSID(0, "$NetBSD: u3g.c,v 1.32 2016/04/23 10:15:32 skrll Exp $" ); |
| 54 | |
| 55 | #include <sys/param.h> |
| 56 | #include <sys/systm.h> |
| 57 | #include <sys/kernel.h> |
| 58 | #include <sys/kmem.h> |
| 59 | #include <sys/bus.h> |
| 60 | #include <sys/conf.h> |
| 61 | #include <sys/tty.h> |
| 62 | |
| 63 | #include <dev/usb/usb.h> |
| 64 | #include <dev/usb/usbdi.h> |
| 65 | #include <dev/usb/usbdivar.h> |
| 66 | #include <dev/usb/usbdi_util.h> |
| 67 | |
| 68 | #include <dev/usb/ucomvar.h> |
| 69 | |
| 70 | #include "usbdevs.h" |
| 71 | |
| 72 | /* |
| 73 | * We read/write data from/to the device in 4KB chunks to maximise |
| 74 | * performance. |
| 75 | */ |
| 76 | #define U3G_BUFF_SIZE 4096 |
| 77 | |
| 78 | /* |
| 79 | * Some 3G devices (the Huawei E160/E220 springs to mind here) buffer up |
| 80 | * data internally even when the USB pipes are closed. So on first open, |
| 81 | * we can receive a large chunk of stale data. |
| 82 | * |
| 83 | * This causes a real problem because the default TTYDEF_LFLAG (applied |
| 84 | * on first open) has the ECHO flag set, resulting in all the stale data |
| 85 | * being echoed straight back to the device by the tty(4) layer. Some |
| 86 | * devices (again, the Huawei E160/E220 for example) react to this spew |
| 87 | * by going catatonic. |
| 88 | * |
| 89 | * All this happens before the application gets a chance to disable ECHO. |
| 90 | * |
| 91 | * We work around this by ignoring all data received from the device for |
| 92 | * a period of two seconds, or until the application starts sending data - |
| 93 | * whichever comes first. |
| 94 | */ |
| 95 | #define U3G_PURGE_SECS 2 |
| 96 | |
| 97 | /* |
| 98 | * Define bits for the virtual modem control pins. |
| 99 | * The input pin states are reported via the interrupt pipe on some devices. |
| 100 | */ |
| 101 | #define U3G_OUTPIN_DTR (1u << 0) |
| 102 | #define U3G_OUTPIN_RTS (1u << 1) |
| 103 | #define U3G_INPIN_DCD (1u << 0) |
| 104 | #define U3G_INPIN_DSR (1u << 1) |
| 105 | #define U3G_INPIN_RI (1u << 3) |
| 106 | |
| 107 | /* |
| 108 | * USB request to set the output pin status |
| 109 | */ |
| 110 | #define U3G_SET_PIN 0x22 |
| 111 | |
| 112 | struct u3g_softc { |
| 113 | device_t sc_dev; |
| 114 | struct usbd_device * sc_udev; |
| 115 | bool sc_dying; /* We're going away */ |
| 116 | int sc_ifaceno; /* Device interface number */ |
| 117 | |
| 118 | struct u3g_com { |
| 119 | device_t c_dev; /* Child ucom(4) handle */ |
| 120 | |
| 121 | bool c_open; /* Device is in use */ |
| 122 | bool c_purging; /* Purging stale data */ |
| 123 | struct timeval c_purge_start; /* Control duration of purge */ |
| 124 | |
| 125 | u_char c_msr; /* Emulated 'msr' */ |
| 126 | uint16_t c_outpins; /* Output pin state */ |
| 127 | } sc_com[10]; |
| 128 | size_t sc_ncom; |
| 129 | |
| 130 | struct usbd_pipe * sc_intr_pipe; /* Interrupt pipe */ |
| 131 | u_char *sc_intr_buff; /* Interrupt buffer */ |
| 132 | size_t sc_intr_size; /* buffer size */ |
| 133 | }; |
| 134 | |
| 135 | /* |
| 136 | * The device driver has two personalities. The first uses the 'usbdevif' |
| 137 | * interface attribute so that a match will claim the entire USB device |
| 138 | * for itself. This is used for when a device needs to be mode-switched |
| 139 | * and ensures any other interfaces present cannot be claimed by other |
| 140 | * drivers while the mode-switch is in progress. |
| 141 | * |
| 142 | * The second personality uses the 'usbifif' interface attribute so that |
| 143 | * it can claim the 3G modem interfaces for itself, leaving others (such |
| 144 | * as the mass storage interfaces on some devices) for other drivers. |
| 145 | */ |
| 146 | static int u3ginit_match(device_t, cfdata_t, void *); |
| 147 | static void u3ginit_attach(device_t, device_t, void *); |
| 148 | static int u3ginit_detach(device_t, int); |
| 149 | |
| 150 | CFATTACH_DECL2_NEW(u3ginit, 0, u3ginit_match, |
| 151 | u3ginit_attach, u3ginit_detach, NULL, NULL, NULL); |
| 152 | |
| 153 | |
| 154 | static int u3g_match(device_t, cfdata_t, void *); |
| 155 | static void u3g_attach(device_t, device_t, void *); |
| 156 | static int u3g_detach(device_t, int); |
| 157 | static int u3g_activate(device_t, enum devact); |
| 158 | static void u3g_childdet(device_t, device_t); |
| 159 | |
| 160 | CFATTACH_DECL2_NEW(u3g, sizeof(struct u3g_softc), u3g_match, |
| 161 | u3g_attach, u3g_detach, u3g_activate, NULL, u3g_childdet); |
| 162 | |
| 163 | |
| 164 | static void u3g_intr(struct usbd_xfer *, void *, usbd_status); |
| 165 | static void u3g_get_status(void *, int, u_char *, u_char *); |
| 166 | static void u3g_set(void *, int, int, int); |
| 167 | static int u3g_open(void *, int); |
| 168 | static void u3g_close(void *, int); |
| 169 | static void u3g_read(void *, int, u_char **, uint32_t *); |
| 170 | static void u3g_write(void *, int, u_char *, u_char *, uint32_t *); |
| 171 | |
| 172 | struct ucom_methods u3g_methods = { |
| 173 | .ucom_get_status = u3g_get_status, |
| 174 | .ucom_set = u3g_set, |
| 175 | .ucom_param = NULL, |
| 176 | .ucom_ioctl = NULL, |
| 177 | .ucom_open = u3g_open, |
| 178 | .ucom_close = u3g_close, |
| 179 | .ucom_read = u3g_read, |
| 180 | .ucom_write = u3g_write, |
| 181 | }; |
| 182 | |
| 183 | /* |
| 184 | * Allegedly supported devices |
| 185 | */ |
| 186 | static const struct usb_devno u3g_devs[] = { |
| 187 | { USB_VENDOR_DELL, USB_PRODUCT_DELL_W5500 }, |
| 188 | /* OEM: Huawei */ |
| 189 | { USB_VENDOR_HUAWEI, USB_PRODUCT_HUAWEI_E1750 }, |
| 190 | { USB_VENDOR_HUAWEI, USB_PRODUCT_HUAWEI_E1820 }, |
| 191 | { USB_VENDOR_HUAWEI, USB_PRODUCT_HUAWEI_E220 }, |
| 192 | { USB_VENDOR_HUAWEI, USB_PRODUCT_HUAWEI_EM770W }, |
| 193 | { USB_VENDOR_HUAWEI, USB_PRODUCT_HUAWEI_K3765 }, |
| 194 | { USB_VENDOR_HUAWEI, USB_PRODUCT_HUAWEI_MOBILE }, |
| 195 | { USB_VENDOR_HUAWEI, USB_PRODUCT_HUAWEI_E171 }, |
| 196 | { USB_VENDOR_HUAWEI, USB_PRODUCT_HUAWEI_E353 }, |
| 197 | /* OEM: Merlin */ |
| 198 | { USB_VENDOR_MERLIN, USB_PRODUCT_MERLIN_V620 }, |
| 199 | /* OEM: Novatel */ |
| 200 | { USB_VENDOR_NOVATEL2, USB_PRODUCT_NOVATEL2_ES620 }, |
| 201 | { USB_VENDOR_NOVATEL2, USB_PRODUCT_NOVATEL2_EU8X0D }, |
| 202 | { USB_VENDOR_NOVATEL2, USB_PRODUCT_NOVATEL2_MC950D }, |
| 203 | #if 0 |
| 204 | /* These are matched in u3ginit_match() */ |
| 205 | { USB_VENDOR_NOVATEL2, USB_PRODUCT_NOVATEL2_MC950D_DRIVER }, |
| 206 | { USB_VENDOR_NOVATEL2, USB_PRODUCT_NOVATEL2_U760_DRIVER }, |
| 207 | #endif |
| 208 | { USB_VENDOR_NOVATEL2, USB_PRODUCT_NOVATEL2_MERLINU740 }, |
| 209 | { USB_VENDOR_NOVATEL2, USB_PRODUCT_NOVATEL2_MERLINV620 }, |
| 210 | { USB_VENDOR_NOVATEL2, USB_PRODUCT_NOVATEL2_S720 }, |
| 211 | { USB_VENDOR_NOVATEL2, USB_PRODUCT_NOVATEL2_U720 }, |
| 212 | { USB_VENDOR_NOVATEL2, USB_PRODUCT_NOVATEL2_U727 }, |
| 213 | { USB_VENDOR_NOVATEL2, USB_PRODUCT_NOVATEL2_U740_2 }, |
| 214 | { USB_VENDOR_NOVATEL2, USB_PRODUCT_NOVATEL2_U760 }, |
| 215 | { USB_VENDOR_NOVATEL2, USB_PRODUCT_NOVATEL2_U870 }, |
| 216 | { USB_VENDOR_NOVATEL2, USB_PRODUCT_NOVATEL2_V740 }, |
| 217 | { USB_VENDOR_NOVATEL2, USB_PRODUCT_NOVATEL2_X950D }, |
| 218 | { USB_VENDOR_NOVATEL2, USB_PRODUCT_NOVATEL2_XU870 }, |
| 219 | /* OEM: Option N.V. */ |
| 220 | { USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_QUADPLUSUMTS }, |
| 221 | { USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_HSDPA }, |
| 222 | { USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_GTMAXHSUPA }, |
| 223 | /* OEM: Qualcomm, Inc. */ |
| 224 | { USB_VENDOR_QUALCOMM, USB_PRODUCT_QUALCOMM_NTT_DOCOMO_L02C_MODEM }, |
| 225 | |
| 226 | /* OEM: Sierra Wireless: */ |
| 227 | { USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_AC595U }, |
| 228 | { USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_AC597E }, |
| 229 | { USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_AC875U }, |
| 230 | { USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_AC880 }, |
| 231 | { USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_AC880E }, |
| 232 | { USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_AC880U }, |
| 233 | { USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_AC881 }, |
| 234 | { USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_AC881E }, |
| 235 | { USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_AC881U }, |
| 236 | { USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_AIRCARD580 }, |
| 237 | { USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_AIRCARD595 }, |
| 238 | { USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_AIRCARD875 }, |
| 239 | { USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_C597 }, |
| 240 | { USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_EM5625 }, |
| 241 | { USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_MC5720 }, |
| 242 | { USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_MC5720_2 }, |
| 243 | { USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_MC5725 }, |
| 244 | { USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_MC8755 }, |
| 245 | { USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_MC8755_2 }, |
| 246 | { USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_MC8755_3 }, |
| 247 | { USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_MC8765 }, |
| 248 | { USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_MC8775_2 }, |
| 249 | { USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_MC8780 }, |
| 250 | { USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_MC8781 }, |
| 251 | { USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_MINI5725 }, |
| 252 | { USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_USB305 }, |
| 253 | { USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_250U }, |
| 254 | /* Toshiba */ |
| 255 | { USB_VENDOR_TOSHIBA, USB_PRODUCT_TOSHIBA_HSDPA_MODEM_EU870DT1 }, |
| 256 | |
| 257 | /* ZTE */ |
| 258 | { USB_VENDOR_ZTE, USB_PRODUCT_ZTE_MF622 }, |
| 259 | { USB_VENDOR_ZTE, USB_PRODUCT_ZTE_MF626 }, |
| 260 | { USB_VENDOR_ZTE, USB_PRODUCT_ZTE_MF628 }, |
| 261 | { USB_VENDOR_ZTE, USB_PRODUCT_ZTE_MF820D }, |
| 262 | |
| 263 | /* 4G Systems */ |
| 264 | { USB_VENDOR_4GSYSTEMS, USB_PRODUCT_4GSYSTEMS_XSSTICK_P14 }, |
| 265 | { USB_VENDOR_4GSYSTEMS, USB_PRODUCT_4GSYSTEMS_XSSTICK_W14 }, |
| 266 | }; |
| 267 | |
| 268 | static int |
| 269 | send_bulkmsg(struct usbd_device *dev, void *cmd, size_t cmdlen) |
| 270 | { |
| 271 | struct usbd_interface *iface; |
| 272 | usb_interface_descriptor_t *id; |
| 273 | usb_endpoint_descriptor_t *ed; |
| 274 | struct usbd_pipe *pipe; |
| 275 | struct usbd_xfer *xfer; |
| 276 | int err, i; |
| 277 | |
| 278 | /* Move the device into the configured state. */ |
| 279 | err = usbd_set_config_index(dev, 0, 0); |
| 280 | if (err) { |
| 281 | aprint_error("u3ginit: failed to set config index\n" ); |
| 282 | return UMATCH_NONE; |
| 283 | } |
| 284 | |
| 285 | err = usbd_device2interface_handle(dev, 0, &iface); |
| 286 | if (err != 0) { |
| 287 | aprint_error("u3ginit: failed to get interface\n" ); |
| 288 | return UMATCH_NONE; |
| 289 | } |
| 290 | |
| 291 | id = usbd_get_interface_descriptor(iface); |
| 292 | ed = NULL; |
| 293 | for (i = 0 ; i < id->bNumEndpoints ; i++) { |
| 294 | ed = usbd_interface2endpoint_descriptor(iface, i); |
| 295 | if (ed == NULL) |
| 296 | continue; |
| 297 | if (UE_GET_DIR(ed->bEndpointAddress) != UE_DIR_OUT) |
| 298 | continue; |
| 299 | if ((ed->bmAttributes & UE_XFERTYPE) == UE_BULK) |
| 300 | break; |
| 301 | } |
| 302 | |
| 303 | if (i == id->bNumEndpoints) |
| 304 | return UMATCH_NONE; |
| 305 | |
| 306 | err = usbd_open_pipe(iface, ed->bEndpointAddress, |
| 307 | USBD_EXCLUSIVE_USE, &pipe); |
| 308 | if (err != 0) { |
| 309 | aprint_error("u3ginit: failed to open bulk transfer pipe %d\n" , |
| 310 | ed->bEndpointAddress); |
| 311 | return UMATCH_NONE; |
| 312 | } |
| 313 | |
| 314 | int error = usbd_create_xfer(pipe, cmdlen, 0, 0, &xfer); |
| 315 | if (!error) { |
| 316 | |
| 317 | usbd_setup_xfer(xfer, NULL, cmd, cmdlen, |
| 318 | USBD_SYNCHRONOUS, USBD_DEFAULT_TIMEOUT, NULL); |
| 319 | |
| 320 | err = usbd_transfer(xfer); |
| 321 | |
| 322 | #if 0 /* XXXpooka: at least my huawei "fails" this always, but still detaches */ |
| 323 | if (err) |
| 324 | aprint_error("u3ginit: transfer failed\n" ); |
| 325 | #else |
| 326 | err = 0; |
| 327 | #endif |
| 328 | usbd_destroy_xfer(xfer); |
| 329 | } else { |
| 330 | aprint_error("u3ginit: failed to allocate xfer\n" ); |
| 331 | err = USBD_NOMEM; |
| 332 | } |
| 333 | |
| 334 | usbd_abort_pipe(pipe); |
| 335 | usbd_close_pipe(pipe); |
| 336 | |
| 337 | return err == USBD_NORMAL_COMPLETION ? UMATCH_HIGHEST : UMATCH_NONE; |
| 338 | } |
| 339 | |
| 340 | /* Byte 0..3: Command Block Wrapper (CBW) signature */ |
| 341 | static void |
| 342 | set_cbw(unsigned char *cmd) |
| 343 | { |
| 344 | cmd[0] = 0x55; |
| 345 | cmd[1] = 0x53; |
| 346 | cmd[2] = 0x42; |
| 347 | cmd[3] = 0x43; |
| 348 | } |
| 349 | |
| 350 | static int |
| 351 | u3g_bulk_scsi_eject(struct usbd_device *dev) |
| 352 | { |
| 353 | unsigned char cmd[31]; |
| 354 | |
| 355 | memset(cmd, 0, sizeof(cmd)); |
| 356 | /* Byte 0..3: Command Block Wrapper (CBW) signature */ |
| 357 | set_cbw(cmd); |
| 358 | /* 4..7: CBW Tag, has to unique, but only a single transfer used. */ |
| 359 | cmd[4] = 0x01; |
| 360 | /* 8..11: CBW Transfer Length, no data here */ |
| 361 | /* 12: CBW Flag: output, so 0 */ |
| 362 | /* 13: CBW Lun: 0 */ |
| 363 | /* 14: CBW Length */ |
| 364 | cmd[14] = 0x06; |
| 365 | |
| 366 | /* Rest is the SCSI payload */ |
| 367 | |
| 368 | /* 0: SCSI START/STOP opcode */ |
| 369 | cmd[15] = 0x1b; |
| 370 | /* 1..3 unused */ |
| 371 | /* 4 Load/Eject command */ |
| 372 | cmd[19] = 0x02; |
| 373 | /* 5: unused */ |
| 374 | |
| 375 | return send_bulkmsg(dev, cmd, sizeof(cmd)); |
| 376 | } |
| 377 | |
| 378 | static int |
| 379 | u3g_bulk_ata_eject(struct usbd_device *dev) |
| 380 | { |
| 381 | unsigned char cmd[31]; |
| 382 | |
| 383 | memset(cmd, 0, sizeof(cmd)); |
| 384 | /* Byte 0..3: Command Block Wrapper (CBW) signature */ |
| 385 | set_cbw(cmd); |
| 386 | /* 4..7: CBW Tag, has to unique, but only a single transfer used. */ |
| 387 | cmd[4] = 0x01; |
| 388 | /* 8..11: CBW Transfer Length, no data here */ |
| 389 | /* 12: CBW Flag: output, so 0 */ |
| 390 | /* 13: CBW Lun: 0 */ |
| 391 | /* 14: CBW Length */ |
| 392 | cmd[14] = 0x06; |
| 393 | |
| 394 | /* Rest is the SCSI payload */ |
| 395 | |
| 396 | /* 0: ATA pass-through */ |
| 397 | cmd[15] = 0x85; |
| 398 | /* 1..3 unused */ |
| 399 | /* 4 XXX What is this command? */ |
| 400 | cmd[19] = 0x24; |
| 401 | /* 5: unused */ |
| 402 | |
| 403 | return send_bulkmsg(dev, cmd, sizeof(cmd)); |
| 404 | } |
| 405 | |
| 406 | static int |
| 407 | u3g_huawei_reinit(struct usbd_device *dev) |
| 408 | { |
| 409 | /* |
| 410 | * The Huawei device presents itself as a umass device with Windows |
| 411 | * drivers on it. After installation of the driver, it reinits into a |
| 412 | * 3G serial device. |
| 413 | */ |
| 414 | usb_device_request_t req; |
| 415 | usb_config_descriptor_t *cdesc; |
| 416 | |
| 417 | /* Get the config descriptor */ |
| 418 | cdesc = usbd_get_config_descriptor(dev); |
| 419 | if (cdesc == NULL) { |
| 420 | usb_device_descriptor_t dd; |
| 421 | |
| 422 | if (usbd_get_device_desc(dev, &dd) != 0) |
| 423 | return UMATCH_NONE; |
| 424 | |
| 425 | if (dd.bNumConfigurations != 1) |
| 426 | return UMATCH_NONE; |
| 427 | |
| 428 | if (usbd_set_config_index(dev, 0, 1) != 0) |
| 429 | return UMATCH_NONE; |
| 430 | |
| 431 | cdesc = usbd_get_config_descriptor(dev); |
| 432 | |
| 433 | if (cdesc == NULL) |
| 434 | return UMATCH_NONE; |
| 435 | } |
| 436 | |
| 437 | /* |
| 438 | * One iface means umass mode, more than 1 (4 usually) means 3G mode. |
| 439 | * |
| 440 | * XXX: We should check the first interface's device class just to be |
| 441 | * sure. If it's a mass storage device, then we can be fairly certain |
| 442 | * it needs a mode-switch. |
| 443 | */ |
| 444 | if (cdesc->bNumInterface > 1) |
| 445 | return UMATCH_NONE; |
| 446 | |
| 447 | req.bmRequestType = UT_WRITE_DEVICE; |
| 448 | req.bRequest = UR_SET_FEATURE; |
| 449 | USETW(req.wValue, UF_DEVICE_REMOTE_WAKEUP); |
| 450 | USETW(req.wIndex, UHF_PORT_SUSPEND); |
| 451 | USETW(req.wLength, 0); |
| 452 | |
| 453 | (void) usbd_do_request(dev, &req, 0); |
| 454 | |
| 455 | return UMATCH_HIGHEST; /* Prevent umass from attaching */ |
| 456 | } |
| 457 | |
| 458 | static int |
| 459 | u3g_huawei_k3765_reinit(struct usbd_device *dev) |
| 460 | { |
| 461 | unsigned char cmd[31]; |
| 462 | |
| 463 | /* magic string adapted from some webpage */ |
| 464 | memset(cmd, 0, sizeof(cmd)); |
| 465 | /* Byte 0..3: Command Block Wrapper (CBW) signature */ |
| 466 | set_cbw(cmd); |
| 467 | |
| 468 | cmd[15]= 0x11; |
| 469 | cmd[16]= 0x06; |
| 470 | |
| 471 | return send_bulkmsg(dev, cmd, sizeof(cmd)); |
| 472 | } |
| 473 | static int |
| 474 | u3g_huawei_e171_reinit(struct usbd_device *dev) |
| 475 | { |
| 476 | unsigned char cmd[31]; |
| 477 | |
| 478 | /* magic string adapted from some webpage */ |
| 479 | memset(cmd, 0, sizeof(cmd)); |
| 480 | /* Byte 0..3: Command Block Wrapper (CBW) signature */ |
| 481 | set_cbw(cmd); |
| 482 | |
| 483 | cmd[15]= 0x11; |
| 484 | cmd[16]= 0x06; |
| 485 | cmd[17]= 0x20; |
| 486 | cmd[20]= 0x01; |
| 487 | |
| 488 | return send_bulkmsg(dev, cmd, sizeof(cmd)); |
| 489 | } |
| 490 | |
| 491 | static int |
| 492 | u3g_huawei_e353_reinit(struct usbd_device *dev) |
| 493 | { |
| 494 | unsigned char cmd[31]; |
| 495 | |
| 496 | /* magic string adapted from some webpage */ |
| 497 | memset(cmd, 0, sizeof(cmd)); |
| 498 | /* Byte 0..3: Command Block Wrapper (CBW) signature */ |
| 499 | set_cbw(cmd); |
| 500 | |
| 501 | cmd[4] = 0x7f; |
| 502 | cmd[9] = 0x02; |
| 503 | cmd[12] = 0x80; |
| 504 | cmd[14] = 0x0a; |
| 505 | cmd[15] = 0x11; |
| 506 | cmd[16] = 0x06; |
| 507 | cmd[17] = 0x20; |
| 508 | cmd[23] = 0x01; |
| 509 | |
| 510 | return send_bulkmsg(dev, cmd, sizeof(cmd)); |
| 511 | } |
| 512 | |
| 513 | static int |
| 514 | u3g_sierra_reinit(struct usbd_device *dev) |
| 515 | { |
| 516 | /* Some Sierra devices presents themselves as a umass device with |
| 517 | * Windows drivers on it. After installation of the driver, it |
| 518 | * reinits into a * 3G serial device. |
| 519 | */ |
| 520 | usb_device_request_t req; |
| 521 | |
| 522 | req.bmRequestType = UT_VENDOR; |
| 523 | req.bRequest = UR_SET_INTERFACE; |
| 524 | USETW(req.wValue, UF_DEVICE_REMOTE_WAKEUP); |
| 525 | USETW(req.wIndex, UHF_PORT_CONNECTION); |
| 526 | USETW(req.wLength, 0); |
| 527 | |
| 528 | (void) usbd_do_request(dev, &req, 0); |
| 529 | |
| 530 | return UMATCH_HIGHEST; /* Match to prevent umass from attaching */ |
| 531 | } |
| 532 | |
| 533 | static int |
| 534 | u3g_4gsystems_reinit(struct usbd_device *dev) |
| 535 | { |
| 536 | /* magic string adapted from usb_modeswitch database */ |
| 537 | unsigned char cmd[31]; |
| 538 | |
| 539 | memset(cmd, 0, sizeof(cmd)); |
| 540 | /* Byte 0..3: Command Block Wrapper (CBW) signature */ |
| 541 | set_cbw(cmd); |
| 542 | |
| 543 | cmd[4] = 0x12; |
| 544 | cmd[5] = 0x34; |
| 545 | cmd[6] = 0x56; |
| 546 | cmd[7] = 0x78; |
| 547 | cmd[8] = 0x80; |
| 548 | cmd[12] = 0x80; |
| 549 | cmd[14] = 0x06; |
| 550 | cmd[15] = 0x06; |
| 551 | cmd[16] = 0xf5; |
| 552 | cmd[17] = 0x04; |
| 553 | cmd[18] = 0x02; |
| 554 | cmd[19] = 0x52; |
| 555 | cmd[20] = 0x70; |
| 556 | |
| 557 | return send_bulkmsg(dev, cmd, sizeof(cmd)); |
| 558 | } |
| 559 | |
| 560 | /* |
| 561 | * First personality: |
| 562 | * |
| 563 | * Claim the entire device if a mode-switch is required. |
| 564 | */ |
| 565 | |
| 566 | static int |
| 567 | u3ginit_match(device_t parent, cfdata_t match, void *aux) |
| 568 | { |
| 569 | struct usb_attach_arg *uaa = aux; |
| 570 | |
| 571 | /* |
| 572 | * Huawei changes product when it is configured as a modem. |
| 573 | */ |
| 574 | switch (uaa->uaa_vendor) { |
| 575 | case USB_VENDOR_HUAWEI: |
| 576 | if (uaa->uaa_product == USB_PRODUCT_HUAWEI_K3765) |
| 577 | return UMATCH_NONE; |
| 578 | |
| 579 | switch (uaa->uaa_product) { |
| 580 | case USB_PRODUCT_HUAWEI_E1750INIT: |
| 581 | case USB_PRODUCT_HUAWEI_K3765INIT: |
| 582 | return u3g_huawei_k3765_reinit(uaa->uaa_device); |
| 583 | break; |
| 584 | case USB_PRODUCT_HUAWEI_E171INIT: |
| 585 | return u3g_huawei_e171_reinit(uaa->uaa_device); |
| 586 | break; |
| 587 | case USB_PRODUCT_HUAWEI_E353INIT: |
| 588 | return u3g_huawei_e353_reinit(uaa->uaa_device); |
| 589 | break; |
| 590 | default: |
| 591 | return u3g_huawei_reinit(uaa->uaa_device); |
| 592 | break; |
| 593 | } |
| 594 | break; |
| 595 | |
| 596 | case USB_VENDOR_NOVATEL2: |
| 597 | switch (uaa->uaa_product){ |
| 598 | case USB_PRODUCT_NOVATEL2_MC950D_DRIVER: |
| 599 | case USB_PRODUCT_NOVATEL2_U760_DRIVER: |
| 600 | return u3g_bulk_scsi_eject(uaa->uaa_device); |
| 601 | break; |
| 602 | default: |
| 603 | break; |
| 604 | } |
| 605 | break; |
| 606 | |
| 607 | case USB_VENDOR_SIERRA: |
| 608 | if (uaa->uaa_product == USB_PRODUCT_SIERRA_INSTALLER) |
| 609 | return u3g_sierra_reinit(uaa->uaa_device); |
| 610 | break; |
| 611 | |
| 612 | case USB_VENDOR_QUALCOMM: |
| 613 | if (uaa->uaa_product == USB_PRODUCT_QUALCOMM_NTT_DOCOMO_L02C_STORAGE) |
| 614 | return u3g_bulk_scsi_eject(uaa->uaa_device); |
| 615 | break; |
| 616 | |
| 617 | case USB_VENDOR_ZTE: |
| 618 | switch (uaa->uaa_product){ |
| 619 | case USB_PRODUCT_ZTE_INSTALLER: |
| 620 | case USB_PRODUCT_ZTE_MF820D_INSTALLER: |
| 621 | (void)u3g_bulk_ata_eject(uaa->uaa_device); |
| 622 | (void)u3g_bulk_scsi_eject(uaa->uaa_device); |
| 623 | return UMATCH_HIGHEST; |
| 624 | default: |
| 625 | break; |
| 626 | } |
| 627 | break; |
| 628 | |
| 629 | case USB_VENDOR_4GSYSTEMS: |
| 630 | if (uaa->uaa_product == USB_PRODUCT_4GSYSTEMS_XSSTICK_P14_INSTALLER) |
| 631 | return u3g_4gsystems_reinit(uaa->uaa_device); |
| 632 | break; |
| 633 | |
| 634 | default: |
| 635 | break; |
| 636 | } |
| 637 | |
| 638 | return UMATCH_NONE; |
| 639 | } |
| 640 | |
| 641 | static void |
| 642 | u3ginit_attach(device_t parent, device_t self, void *aux) |
| 643 | { |
| 644 | struct usb_attach_arg *uaa = aux; |
| 645 | |
| 646 | aprint_naive("\n" ); |
| 647 | aprint_normal(": Switching to 3G mode\n" ); |
| 648 | |
| 649 | if (uaa->uaa_vendor == USB_VENDOR_NOVATEL2) { |
| 650 | switch (uaa->uaa_product) { |
| 651 | case USB_PRODUCT_NOVATEL2_MC950D_DRIVER: |
| 652 | case USB_PRODUCT_NOVATEL2_U760_DRIVER: |
| 653 | /* About to disappear... */ |
| 654 | return; |
| 655 | break; |
| 656 | default: |
| 657 | break; |
| 658 | } |
| 659 | } |
| 660 | |
| 661 | /* Move the device into the configured state. */ |
| 662 | (void) usbd_set_config_index(uaa->uaa_device, 0, 1); |
| 663 | } |
| 664 | |
| 665 | static int |
| 666 | u3ginit_detach(device_t self, int flags) |
| 667 | { |
| 668 | |
| 669 | return 0; |
| 670 | } |
| 671 | |
| 672 | |
| 673 | /* |
| 674 | * Second personality: |
| 675 | * |
| 676 | * Claim only those interfaces required for 3G modem operation. |
| 677 | */ |
| 678 | |
| 679 | static int |
| 680 | u3g_match(device_t parent, cfdata_t match, void *aux) |
| 681 | { |
| 682 | struct usbif_attach_arg *uiaa = aux; |
| 683 | struct usbd_interface *iface; |
| 684 | usb_interface_descriptor_t *id; |
| 685 | usbd_status error; |
| 686 | |
| 687 | if (!usb_lookup(u3g_devs, uiaa->uiaa_vendor, uiaa->uiaa_product)) |
| 688 | return UMATCH_NONE; |
| 689 | |
| 690 | error = usbd_device2interface_handle(uiaa->uiaa_device, |
| 691 | uiaa->uiaa_ifaceno, &iface); |
| 692 | if (error) { |
| 693 | printf("u3g_match: failed to get interface, err=%s\n" , |
| 694 | usbd_errstr(error)); |
| 695 | return UMATCH_NONE; |
| 696 | } |
| 697 | |
| 698 | id = usbd_get_interface_descriptor(iface); |
| 699 | if (id == NULL) { |
| 700 | printf("u3g_match: failed to get interface descriptor\n" ); |
| 701 | return UMATCH_NONE; |
| 702 | } |
| 703 | |
| 704 | /* |
| 705 | * Huawei modems use the vendor-specific class for all interfaces, |
| 706 | * both tty and CDC NCM, which we should avoid attaching to. |
| 707 | */ |
| 708 | if (uiaa->uiaa_vendor == USB_VENDOR_HUAWEI && |
| 709 | id->bInterfaceSubClass == 2 && |
| 710 | (id->bInterfaceProtocol & 0xf) == 6) /* 0x16, 0x46, 0x76 */ |
| 711 | return UMATCH_NONE; |
| 712 | |
| 713 | /* |
| 714 | * 3G modems generally report vendor-specific class |
| 715 | * |
| 716 | * XXX: this may be too generalised. |
| 717 | */ |
| 718 | return id->bInterfaceClass == UICLASS_VENDOR ? |
| 719 | UMATCH_VENDOR_PRODUCT : UMATCH_NONE; |
| 720 | } |
| 721 | |
| 722 | static void |
| 723 | u3g_attach(device_t parent, device_t self, void *aux) |
| 724 | { |
| 725 | struct u3g_softc *sc = device_private(self); |
| 726 | struct usbif_attach_arg *uiaa = aux; |
| 727 | struct usbd_device *dev = uiaa->uiaa_device; |
| 728 | struct usbd_interface *iface; |
| 729 | usb_interface_descriptor_t *id; |
| 730 | usb_endpoint_descriptor_t *ed; |
| 731 | struct ucom_attach_args ucaa; |
| 732 | usbd_status error; |
| 733 | int n, intr_address, intr_size; |
| 734 | |
| 735 | aprint_naive("\n" ); |
| 736 | aprint_normal("\n" ); |
| 737 | |
| 738 | sc->sc_dev = self; |
| 739 | sc->sc_dying = false; |
| 740 | sc->sc_udev = dev; |
| 741 | |
| 742 | error = usbd_device2interface_handle(dev, uiaa->uiaa_ifaceno, &iface); |
| 743 | if (error) { |
| 744 | aprint_error_dev(self, "failed to get interface, err=%s\n" , |
| 745 | usbd_errstr(error)); |
| 746 | return; |
| 747 | } |
| 748 | |
| 749 | id = usbd_get_interface_descriptor(iface); |
| 750 | |
| 751 | ucaa.ucaa_info = "3G Modem" ; |
| 752 | ucaa.ucaa_ibufsize = U3G_BUFF_SIZE; |
| 753 | ucaa.ucaa_obufsize = U3G_BUFF_SIZE; |
| 754 | ucaa.ucaa_ibufsizepad = U3G_BUFF_SIZE; |
| 755 | ucaa.ucaa_opkthdrlen = 0; |
| 756 | ucaa.ucaa_device = dev; |
| 757 | ucaa.ucaa_iface = iface; |
| 758 | ucaa.ucaa_methods = &u3g_methods; |
| 759 | ucaa.ucaa_arg = sc; |
| 760 | ucaa.ucaa_portno = -1; |
| 761 | ucaa.ucaa_bulkin = ucaa.ucaa_bulkout = -1; |
| 762 | |
| 763 | |
| 764 | sc->sc_ifaceno = uiaa->uiaa_ifaceno; |
| 765 | intr_address = -1; |
| 766 | intr_size = 0; |
| 767 | |
| 768 | for (n = 0; n < id->bNumEndpoints; n++) { |
| 769 | ed = usbd_interface2endpoint_descriptor(iface, n); |
| 770 | if (ed == NULL) { |
| 771 | aprint_error_dev(self, "no endpoint descriptor " |
| 772 | "for %d (interface: %d)\n" , n, sc->sc_ifaceno); |
| 773 | sc->sc_dying = true; |
| 774 | return; |
| 775 | } |
| 776 | |
| 777 | if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && |
| 778 | UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { |
| 779 | intr_address = ed->bEndpointAddress; |
| 780 | intr_size = UGETW(ed->wMaxPacketSize); |
| 781 | } else |
| 782 | if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && |
| 783 | UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { |
| 784 | ucaa.ucaa_bulkin = ed->bEndpointAddress; |
| 785 | } else |
| 786 | if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && |
| 787 | UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { |
| 788 | ucaa.ucaa_bulkout = ed->bEndpointAddress; |
| 789 | } |
| 790 | if (ucaa.ucaa_bulkin != -1 && ucaa.ucaa_bulkout != -1) { |
| 791 | struct u3g_com *com; |
| 792 | if (sc->sc_ncom == __arraycount(sc->sc_com)) { |
| 793 | aprint_error_dev(self, "Need to configure " |
| 794 | "more than %zu ttys" , sc->sc_ncom); |
| 795 | continue; |
| 796 | } |
| 797 | ucaa.ucaa_portno = sc->sc_ncom++; |
| 798 | com = &sc->sc_com[ucaa.ucaa_portno]; |
| 799 | com->c_outpins = 0; |
| 800 | com->c_msr = UMSR_DSR | UMSR_CTS | UMSR_DCD; |
| 801 | com->c_open = false; |
| 802 | com->c_purging = false; |
| 803 | com->c_dev = config_found_sm_loc(self, "ucombus" , |
| 804 | NULL, &ucaa, ucomprint, ucomsubmatch); |
| 805 | ucaa.ucaa_bulkin = -1; |
| 806 | ucaa.ucaa_bulkout = -1; |
| 807 | } |
| 808 | } |
| 809 | |
| 810 | if (sc->sc_ncom == 0) { |
| 811 | aprint_error_dev(self, "Missing bulk in/out for interface %d\n" , |
| 812 | sc->sc_ifaceno); |
| 813 | sc->sc_dying = true; |
| 814 | return; |
| 815 | } |
| 816 | |
| 817 | /* |
| 818 | * If the interface has an interrupt pipe, open it immediately so |
| 819 | * that we can track input pin state changes regardless of whether |
| 820 | * the tty(4) device is open or not. |
| 821 | */ |
| 822 | if (intr_address != -1) { |
| 823 | sc->sc_intr_size = intr_size; |
| 824 | sc->sc_intr_buff = kmem_alloc(intr_size, KM_SLEEP); |
| 825 | error = usbd_open_pipe_intr(iface, intr_address, |
| 826 | USBD_SHORT_XFER_OK, &sc->sc_intr_pipe, sc, sc->sc_intr_buff, |
| 827 | intr_size, u3g_intr, 100); |
| 828 | if (error) { |
| 829 | aprint_error_dev(self, "cannot open interrupt pipe " |
| 830 | "(addr %d)\n" , intr_address); |
| 831 | return; |
| 832 | } |
| 833 | } else { |
| 834 | sc->sc_intr_pipe = NULL; |
| 835 | sc->sc_intr_buff = NULL; |
| 836 | } |
| 837 | |
| 838 | if (!pmf_device_register(self, NULL, NULL)) |
| 839 | aprint_error_dev(self, "couldn't establish power handler\n" ); |
| 840 | } |
| 841 | |
| 842 | static int |
| 843 | u3g_detach(device_t self, int flags) |
| 844 | { |
| 845 | struct u3g_softc *sc = device_private(self); |
| 846 | int rv; |
| 847 | |
| 848 | if (sc->sc_dying) |
| 849 | return 0; |
| 850 | |
| 851 | pmf_device_deregister(self); |
| 852 | |
| 853 | for (size_t i = 0; i < sc->sc_ncom; i++) |
| 854 | if (sc->sc_com[i].c_dev != NULL) { |
| 855 | rv = config_detach(sc->sc_com[i].c_dev, flags); |
| 856 | if (rv != 0) { |
| 857 | aprint_verbose_dev(self, "Can't deallocate " |
| 858 | "port (%d)" , rv); |
| 859 | } |
| 860 | } |
| 861 | |
| 862 | if (sc->sc_intr_pipe != NULL) { |
| 863 | (void) usbd_abort_pipe(sc->sc_intr_pipe); |
| 864 | (void) usbd_close_pipe(sc->sc_intr_pipe); |
| 865 | sc->sc_intr_pipe = NULL; |
| 866 | } |
| 867 | if (sc->sc_intr_buff != NULL) { |
| 868 | kmem_free(sc->sc_intr_buff, sc->sc_intr_size); |
| 869 | sc->sc_intr_buff = NULL; |
| 870 | } |
| 871 | |
| 872 | return 0; |
| 873 | } |
| 874 | |
| 875 | static void |
| 876 | u3g_childdet(device_t self, device_t child) |
| 877 | { |
| 878 | struct u3g_softc *sc = device_private(self); |
| 879 | |
| 880 | for (size_t i = 0; i < sc->sc_ncom; i++) |
| 881 | if (sc->sc_com[i].c_dev == child) |
| 882 | sc->sc_com[i].c_dev = NULL; |
| 883 | } |
| 884 | |
| 885 | static int |
| 886 | u3g_activate(device_t self, enum devact act) |
| 887 | { |
| 888 | struct u3g_softc *sc = device_private(self); |
| 889 | int rv = 0; |
| 890 | |
| 891 | switch (act) { |
| 892 | case DVACT_DEACTIVATE: |
| 893 | for (size_t i = 0; i < sc->sc_ncom; i++) |
| 894 | if (sc->sc_com[i].c_dev != NULL && |
| 895 | config_deactivate(sc->sc_com[i].c_dev) && rv == 0) |
| 896 | rv = -1; |
| 897 | else |
| 898 | rv = 0; |
| 899 | break; |
| 900 | |
| 901 | default: |
| 902 | break; |
| 903 | } |
| 904 | |
| 905 | return rv; |
| 906 | } |
| 907 | |
| 908 | static void |
| 909 | u3g_intr(struct usbd_xfer *xfer, void *priv, usbd_status status) |
| 910 | { |
| 911 | struct u3g_softc *sc = (struct u3g_softc *)priv; |
| 912 | u_char *buf; |
| 913 | int portno = 0; /* XXX */ |
| 914 | struct u3g_com *com = &sc->sc_com[portno]; |
| 915 | |
| 916 | if (sc->sc_dying) |
| 917 | return; |
| 918 | |
| 919 | if (status != USBD_NORMAL_COMPLETION) { |
| 920 | if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) |
| 921 | return; |
| 922 | usbd_clear_endpoint_stall_async(sc->sc_intr_pipe); |
| 923 | return; |
| 924 | } |
| 925 | |
| 926 | buf = sc->sc_intr_buff; |
| 927 | if (buf[0] == 0xa1 && buf[1] == 0x20) { |
| 928 | u_char msr; |
| 929 | |
| 930 | msr = com->c_msr & ~(UMSR_DCD | UMSR_DSR | UMSR_RI); |
| 931 | |
| 932 | if (buf[8] & U3G_INPIN_DCD) |
| 933 | msr |= UMSR_DCD; |
| 934 | |
| 935 | if (buf[8] & U3G_INPIN_DSR) |
| 936 | msr |= UMSR_DSR; |
| 937 | |
| 938 | if (buf[8] & U3G_INPIN_RI) |
| 939 | msr |= UMSR_RI; |
| 940 | |
| 941 | if (msr != com->c_msr) { |
| 942 | com->c_msr = msr; |
| 943 | if (com->c_open) |
| 944 | ucom_status_change(device_private(com->c_dev)); |
| 945 | } |
| 946 | } |
| 947 | } |
| 948 | |
| 949 | /*ARGSUSED*/ |
| 950 | static void |
| 951 | u3g_get_status(void *arg, int portno, u_char *lsr, u_char *msr) |
| 952 | { |
| 953 | struct u3g_softc *sc = arg; |
| 954 | |
| 955 | if (lsr != NULL) |
| 956 | *lsr = 0; /* LSR isn't supported */ |
| 957 | if (msr != NULL) |
| 958 | *msr = sc->sc_com[portno].c_msr; |
| 959 | } |
| 960 | |
| 961 | /*ARGSUSED*/ |
| 962 | static void |
| 963 | u3g_set(void *arg, int portno, int reg, int onoff) |
| 964 | { |
| 965 | struct u3g_softc *sc = arg; |
| 966 | usb_device_request_t req; |
| 967 | uint16_t mask, new_state; |
| 968 | usbd_status err; |
| 969 | struct u3g_com *com = &sc->sc_com[portno]; |
| 970 | |
| 971 | if (sc->sc_dying) |
| 972 | return; |
| 973 | |
| 974 | switch (reg) { |
| 975 | case UCOM_SET_DTR: |
| 976 | mask = U3G_OUTPIN_DTR; |
| 977 | break; |
| 978 | case UCOM_SET_RTS: |
| 979 | mask = U3G_OUTPIN_RTS; |
| 980 | break; |
| 981 | default: |
| 982 | return; |
| 983 | } |
| 984 | |
| 985 | new_state = com->c_outpins & ~mask; |
| 986 | if (onoff) |
| 987 | new_state |= mask; |
| 988 | |
| 989 | if (new_state == com->c_outpins) |
| 990 | return; |
| 991 | |
| 992 | com->c_outpins = new_state; |
| 993 | |
| 994 | req.bmRequestType = UT_WRITE_CLASS_INTERFACE; |
| 995 | req.bRequest = U3G_SET_PIN; |
| 996 | USETW(req.wValue, new_state); |
| 997 | USETW(req.wIndex, sc->sc_ifaceno); |
| 998 | USETW(req.wLength, 0); |
| 999 | |
| 1000 | err = usbd_do_request(sc->sc_udev, &req, 0); |
| 1001 | if (err == USBD_STALLED) |
| 1002 | usbd_clear_endpoint_stall(sc->sc_udev->ud_pipe0); |
| 1003 | } |
| 1004 | |
| 1005 | /*ARGSUSED*/ |
| 1006 | static int |
| 1007 | u3g_open(void *arg, int portno) |
| 1008 | { |
| 1009 | struct u3g_softc *sc = arg; |
| 1010 | usb_device_request_t req; |
| 1011 | usb_endpoint_descriptor_t *ed; |
| 1012 | usb_interface_descriptor_t *id; |
| 1013 | struct usbd_interface *ih; |
| 1014 | usbd_status err; |
| 1015 | struct u3g_com *com = &sc->sc_com[portno]; |
| 1016 | int i, nin; |
| 1017 | |
| 1018 | if (sc->sc_dying) |
| 1019 | return 0; |
| 1020 | |
| 1021 | err = usbd_device2interface_handle(sc->sc_udev, sc->sc_ifaceno, &ih); |
| 1022 | if (err) |
| 1023 | return EIO; |
| 1024 | |
| 1025 | id = usbd_get_interface_descriptor(ih); |
| 1026 | |
| 1027 | for (nin = i = 0; i < id->bNumEndpoints; i++) { |
| 1028 | ed = usbd_interface2endpoint_descriptor(ih, i); |
| 1029 | if (ed == NULL) |
| 1030 | return EIO; |
| 1031 | |
| 1032 | if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && |
| 1033 | UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK && |
| 1034 | nin++ == portno) { |
| 1035 | /* Issue ENDPOINT_HALT request */ |
| 1036 | req.bmRequestType = UT_WRITE_ENDPOINT; |
| 1037 | req.bRequest = UR_CLEAR_FEATURE; |
| 1038 | USETW(req.wValue, UF_ENDPOINT_HALT); |
| 1039 | USETW(req.wIndex, ed->bEndpointAddress); |
| 1040 | USETW(req.wLength, 0); |
| 1041 | err = usbd_do_request(sc->sc_udev, &req, 0); |
| 1042 | if (err) |
| 1043 | return EIO; |
| 1044 | } |
| 1045 | } |
| 1046 | |
| 1047 | com->c_open = true; |
| 1048 | com->c_purging = true; |
| 1049 | getmicrotime(&com->c_purge_start); |
| 1050 | |
| 1051 | return 0; |
| 1052 | } |
| 1053 | |
| 1054 | /*ARGSUSED*/ |
| 1055 | static void |
| 1056 | u3g_close(void *arg, int portno) |
| 1057 | { |
| 1058 | struct u3g_softc *sc = arg; |
| 1059 | struct u3g_com *com = &sc->sc_com[portno]; |
| 1060 | |
| 1061 | com->c_open = false; |
| 1062 | } |
| 1063 | |
| 1064 | /*ARGSUSED*/ |
| 1065 | static void |
| 1066 | u3g_read(void *arg, int portno, u_char **cpp, uint32_t *ccp) |
| 1067 | { |
| 1068 | struct u3g_softc *sc = arg; |
| 1069 | struct timeval curr_tv, diff_tv; |
| 1070 | struct u3g_com *com = &sc->sc_com[portno]; |
| 1071 | |
| 1072 | /* |
| 1073 | * If we're not purging input data following first open, do nothing. |
| 1074 | */ |
| 1075 | if (com->c_purging == false) |
| 1076 | return; |
| 1077 | |
| 1078 | /* |
| 1079 | * Otherwise check if the purge timeout has expired |
| 1080 | */ |
| 1081 | getmicrotime(&curr_tv); |
| 1082 | timersub(&curr_tv, &com->c_purge_start, &diff_tv); |
| 1083 | |
| 1084 | if (diff_tv.tv_sec >= U3G_PURGE_SECS) { |
| 1085 | /* Timeout expired. */ |
| 1086 | com->c_purging = false; |
| 1087 | } else { |
| 1088 | /* Still purging. Adjust the caller's byte count. */ |
| 1089 | *ccp = 0; |
| 1090 | } |
| 1091 | } |
| 1092 | |
| 1093 | /*ARGSUSED*/ |
| 1094 | static void |
| 1095 | u3g_write(void *arg, int portno, u_char *to, u_char *from, uint32_t *count) |
| 1096 | { |
| 1097 | struct u3g_softc *sc = arg; |
| 1098 | struct u3g_com *com = &sc->sc_com[portno]; |
| 1099 | |
| 1100 | /* |
| 1101 | * Stop purging as soon as the first data is written to the device. |
| 1102 | */ |
| 1103 | com->c_purging = false; |
| 1104 | memcpy(to, from, *count); |
| 1105 | } |
| 1106 | |