1 /* 2 Keyspan USB to Serial Converter driver 3 4 (C) Copyright (C) 2000-2001 Hugh Blemings <hugh@blemings.org> 5 (C) Copyright (C) 2002 Greg Kroah-Hartman <greg@kroah.com> 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 2 of the License, or 10 (at your option) any later version. 11 12 See http://misc.nu/hugh/keyspan.html for more information. 13 14 Code in this driver inspired by and in a number of places taken 15 from Brian Warner's original Keyspan-PDA driver. 16 17 This driver has been put together with the support of Innosys, Inc. 18 and Keyspan, Inc the manufacturers of the Keyspan USB-serial products. 19 Thanks Guys :) 20 21 Thanks to Paulus for miscellaneous tidy ups, some largish chunks 22 of much nicer and/or completely new code and (perhaps most uniquely) 23 having the patience to sit down and explain why and where he'd changed 24 stuff. 25 26 Tip 'o the hat to IBM (and previously Linuxcare :) for supporting 27 staff in their work on open source projects. 28 29 Change History 30 31 2003sep04 LPM (Keyspan) add support for new single port product USA19HS. 32 Improve setup message handling for all devices. 33 34 Wed Feb 19 22:00:00 PST 2003 (Jeffrey S. Laing <keyspan@jsl.com>) 35 Merged the current (1/31/03) Keyspan code with the current (2.4.21-pre4) 36 Linux source tree. The Linux tree lacked support for the 49WLC and 37 others. The Keyspan patches didn't work with the current kernel. 38 39 2003jan30 LPM add support for the 49WLC and MPR 40 41 Wed Apr 25 12:00:00 PST 2002 (Keyspan) 42 Started with Hugh Blemings' code dated Jan 17, 2002. All adapters 43 now supported (including QI and QW). Modified port open, port 44 close, and send setup() logic to fix various data and endpoint 45 synchronization bugs and device LED status bugs. Changed keyspan_ 46 write_room() to accurately return transmit buffer availability. 47 Changed forwardingLength from 1 to 16 for all adapters. 48 49 Fri Oct 12 16:45:00 EST 2001 50 Preliminary USA-19QI and USA-28 support (both test OK for me, YMMV) 51 52 Wed Apr 25 12:00:00 PST 2002 (Keyspan) 53 Started with Hugh Blemings' code dated Jan 17, 2002. All adapters 54 now supported (including QI and QW). Modified port open, port 55 close, and send setup() logic to fix various data and endpoint 56 synchronization bugs and device LED status bugs. Changed keyspan_ 57 write_room() to accurately return transmit buffer availability. 58 Changed forwardingLength from 1 to 16 for all adapters. 59 60 Fri Oct 12 16:45:00 EST 2001 61 Preliminary USA-19QI and USA-28 support (both test OK for me, YMMV) 62 63 Mon Oct 8 14:29:00 EST 2001 hugh 64 Fixed bug that prevented mulitport devices operating correctly 65 if they weren't the first unit attached. 66 67 Sat Oct 6 12:31:21 EST 2001 hugh 68 Added support for USA-28XA and -28XB, misc cleanups, break support 69 for usa26 based models thanks to David Gibson. 70 71 Thu May 31 11:56:42 PDT 2001 gkh 72 switched from using spinlock to a semaphore 73 74 (04/08/2001) gb 75 Identify version on module load. 76 77 (11/01/2000) Adam J. Richter 78 usb_device_id table support. 79 80 Tue Oct 10 23:15:33 EST 2000 Hugh 81 Merged Paul's changes with my USA-49W mods. Work in progress 82 still... 83 84 Wed Jul 19 14:00:42 EST 2000 gkh 85 Added module_init and module_exit functions to handle the fact that 86 this driver is a loadable module now. 87 88 Tue Jul 18 16:14:52 EST 2000 Hugh 89 Basic character input/output for USA-19 now mostly works, 90 fixed at 9600 baud for the moment. 91 92 Sat Jul 8 11:11:48 EST 2000 Hugh 93 First public release - nothing works except the firmware upload. 94 Tested on PPC and x86 architectures, seems to behave... 95 */ 96 97 98 #include <linux/kernel.h> 99 #include <linux/jiffies.h> 100 #include <linux/errno.h> 101 #include <linux/init.h> 102 #include <linux/slab.h> 103 #include <linux/tty.h> 104 #include <linux/tty_driver.h> 105 #include <linux/tty_flip.h> 106 #include <linux/module.h> 107 #include <linux/spinlock.h> 108 #include <linux/firmware.h> 109 #include <linux/ihex.h> 110 #include <linux/uaccess.h> 111 #include <linux/usb.h> 112 #include <linux/usb/serial.h> 113 #include "keyspan.h" 114 115 static int debug; 116 117 /* 118 * Version Information 119 */ 120 #define DRIVER_VERSION "v1.1.5" 121 #define DRIVER_AUTHOR "Hugh Blemings <hugh@misc.nu" 122 #define DRIVER_DESC "Keyspan USB to Serial Converter Driver" 123 124 #define INSTAT_BUFLEN 32 125 #define GLOCONT_BUFLEN 64 126 #define INDAT49W_BUFLEN 512 127 128 /* Per device and per port private data */ 129 struct keyspan_serial_private { 130 const struct keyspan_device_details *device_details; 131 132 struct urb *instat_urb; 133 char instat_buf[INSTAT_BUFLEN]; 134 135 /* added to support 49wg, where data from all 4 ports comes in 136 on 1 EP and high-speed supported */ 137 struct urb *indat_urb; 138 char indat_buf[INDAT49W_BUFLEN]; 139 140 /* XXX this one probably will need a lock */ 141 struct urb *glocont_urb; 142 char glocont_buf[GLOCONT_BUFLEN]; 143 char ctrl_buf[8]; /* for EP0 control message */ 144 }; 145 146 struct keyspan_port_private { 147 /* Keep track of which input & output endpoints to use */ 148 int in_flip; 149 int out_flip; 150 151 /* Keep duplicate of device details in each port 152 structure as well - simplifies some of the 153 callback functions etc. */ 154 const struct keyspan_device_details *device_details; 155 156 /* Input endpoints and buffer for this port */ 157 struct urb *in_urbs[2]; 158 char in_buffer[2][64]; 159 /* Output endpoints and buffer for this port */ 160 struct urb *out_urbs[2]; 161 char out_buffer[2][64]; 162 163 /* Input ack endpoint */ 164 struct urb *inack_urb; 165 char inack_buffer[1]; 166 167 /* Output control endpoint */ 168 struct urb *outcont_urb; 169 char outcont_buffer[64]; 170 171 /* Settings for the port */ 172 int baud; 173 int old_baud; 174 unsigned int cflag; 175 unsigned int old_cflag; 176 enum {flow_none, flow_cts, flow_xon} flow_control; 177 int rts_state; /* Handshaking pins (outputs) */ 178 int dtr_state; 179 int cts_state; /* Handshaking pins (inputs) */ 180 int dsr_state; 181 int dcd_state; 182 int ri_state; 183 int break_on; 184 185 unsigned long tx_start_time[2]; 186 int resend_cont; /* need to resend control packet */ 187 }; 188 189 /* Include Keyspan message headers. All current Keyspan Adapters 190 make use of one of five message formats which are referred 191 to as USA-26, USA-28, USA-49, USA-90, USA-67 by Keyspan and 192 within this driver. */ 193 #include "keyspan_usa26msg.h" 194 #include "keyspan_usa28msg.h" 195 #include "keyspan_usa49msg.h" 196 #include "keyspan_usa90msg.h" 197 #include "keyspan_usa67msg.h" 198 199 200 /* Functions used by new usb-serial code. */ 201 static int __init keyspan_init(void) 202 { 203 int retval; 204 retval = usb_serial_register(&keyspan_pre_device); 205 if (retval) 206 goto failed_pre_device_register; 207 retval = usb_serial_register(&keyspan_1port_device); 208 if (retval) 209 goto failed_1port_device_register; 210 retval = usb_serial_register(&keyspan_2port_device); 211 if (retval) 212 goto failed_2port_device_register; 213 retval = usb_serial_register(&keyspan_4port_device); 214 if (retval) 215 goto failed_4port_device_register; 216 retval = usb_register(&keyspan_driver); 217 if (retval) 218 goto failed_usb_register; 219 220 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" 221 DRIVER_DESC "\n"); 222 223 return 0; 224 failed_usb_register: 225 usb_serial_deregister(&keyspan_4port_device); 226 failed_4port_device_register: 227 usb_serial_deregister(&keyspan_2port_device); 228 failed_2port_device_register: 229 usb_serial_deregister(&keyspan_1port_device); 230 failed_1port_device_register: 231 usb_serial_deregister(&keyspan_pre_device); 232 failed_pre_device_register: 233 return retval; 234 } 235 236 static void __exit keyspan_exit(void) 237 { 238 usb_deregister(&keyspan_driver); 239 usb_serial_deregister(&keyspan_pre_device); 240 usb_serial_deregister(&keyspan_1port_device); 241 usb_serial_deregister(&keyspan_2port_device); 242 usb_serial_deregister(&keyspan_4port_device); 243 } 244 245 module_init(keyspan_init); 246 module_exit(keyspan_exit); 247 248 static void keyspan_break_ctl(struct tty_struct *tty, int break_state) 249 { 250 struct usb_serial_port *port = tty->driver_data; 251 struct keyspan_port_private *p_priv; 252 253 dbg("%s", __func__); 254 255 p_priv = usb_get_serial_port_data(port); 256 257 if (break_state == -1) 258 p_priv->break_on = 1; 259 else 260 p_priv->break_on = 0; 261 262 keyspan_send_setup(port, 0); 263 } 264 265 266 static void keyspan_set_termios(struct tty_struct *tty, 267 struct usb_serial_port *port, struct ktermios *old_termios) 268 { 269 int baud_rate, device_port; 270 struct keyspan_port_private *p_priv; 271 const struct keyspan_device_details *d_details; 272 unsigned int cflag; 273 274 dbg("%s", __func__); 275 276 p_priv = usb_get_serial_port_data(port); 277 d_details = p_priv->device_details; 278 cflag = tty->termios->c_cflag; 279 device_port = port->number - port->serial->minor; 280 281 /* Baud rate calculation takes baud rate as an integer 282 so other rates can be generated if desired. */ 283 baud_rate = tty_get_baud_rate(tty); 284 /* If no match or invalid, don't change */ 285 if (d_details->calculate_baud_rate(baud_rate, d_details->baudclk, 286 NULL, NULL, NULL, device_port) == KEYSPAN_BAUD_RATE_OK) { 287 /* FIXME - more to do here to ensure rate changes cleanly */ 288 /* FIXME - calcuate exact rate from divisor ? */ 289 p_priv->baud = baud_rate; 290 } else 291 baud_rate = tty_termios_baud_rate(old_termios); 292 293 tty_encode_baud_rate(tty, baud_rate, baud_rate); 294 /* set CTS/RTS handshake etc. */ 295 p_priv->cflag = cflag; 296 p_priv->flow_control = (cflag & CRTSCTS)? flow_cts: flow_none; 297 298 /* Mark/Space not supported */ 299 tty->termios->c_cflag &= ~CMSPAR; 300 301 keyspan_send_setup(port, 0); 302 } 303 304 static int keyspan_tiocmget(struct tty_struct *tty, struct file *file) 305 { 306 struct usb_serial_port *port = tty->driver_data; 307 struct keyspan_port_private *p_priv = usb_get_serial_port_data(port); 308 unsigned int value; 309 310 value = ((p_priv->rts_state) ? TIOCM_RTS : 0) | 311 ((p_priv->dtr_state) ? TIOCM_DTR : 0) | 312 ((p_priv->cts_state) ? TIOCM_CTS : 0) | 313 ((p_priv->dsr_state) ? TIOCM_DSR : 0) | 314 ((p_priv->dcd_state) ? TIOCM_CAR : 0) | 315 ((p_priv->ri_state) ? TIOCM_RNG : 0); 316 317 return value; 318 } 319 320 static int keyspan_tiocmset(struct tty_struct *tty, struct file *file, 321 unsigned int set, unsigned int clear) 322 { 323 struct usb_serial_port *port = tty->driver_data; 324 struct keyspan_port_private *p_priv = usb_get_serial_port_data(port); 325 326 if (set & TIOCM_RTS) 327 p_priv->rts_state = 1; 328 if (set & TIOCM_DTR) 329 p_priv->dtr_state = 1; 330 if (clear & TIOCM_RTS) 331 p_priv->rts_state = 0; 332 if (clear & TIOCM_DTR) 333 p_priv->dtr_state = 0; 334 keyspan_send_setup(port, 0); 335 return 0; 336 } 337 338 /* Write function is similar for the four protocols used 339 with only a minor change for usa90 (usa19hs) required */ 340 static int keyspan_write(struct tty_struct *tty, 341 struct usb_serial_port *port, const unsigned char *buf, int count) 342 { 343 struct keyspan_port_private *p_priv; 344 const struct keyspan_device_details *d_details; 345 int flip; 346 int left, todo; 347 struct urb *this_urb; 348 int err, maxDataLen, dataOffset; 349 350 p_priv = usb_get_serial_port_data(port); 351 d_details = p_priv->device_details; 352 353 if (d_details->msg_format == msg_usa90) { 354 maxDataLen = 64; 355 dataOffset = 0; 356 } else { 357 maxDataLen = 63; 358 dataOffset = 1; 359 } 360 361 dbg("%s - for port %d (%d chars), flip=%d", 362 __func__, port->number, count, p_priv->out_flip); 363 364 for (left = count; left > 0; left -= todo) { 365 todo = left; 366 if (todo > maxDataLen) 367 todo = maxDataLen; 368 369 flip = p_priv->out_flip; 370 371 /* Check we have a valid urb/endpoint before we use it... */ 372 this_urb = p_priv->out_urbs[flip]; 373 if (this_urb == NULL) { 374 /* no bulk out, so return 0 bytes written */ 375 dbg("%s - no output urb :(", __func__); 376 return count; 377 } 378 379 dbg("%s - endpoint %d flip %d", 380 __func__, usb_pipeendpoint(this_urb->pipe), flip); 381 382 if (this_urb->status == -EINPROGRESS) { 383 if (time_before(jiffies, 384 p_priv->tx_start_time[flip] + 10 * HZ)) 385 break; 386 usb_unlink_urb(this_urb); 387 break; 388 } 389 390 /* First byte in buffer is "last flag" (except for usa19hx) 391 - unused so for now so set to zero */ 392 ((char *)this_urb->transfer_buffer)[0] = 0; 393 394 memcpy(this_urb->transfer_buffer + dataOffset, buf, todo); 395 buf += todo; 396 397 /* send the data out the bulk port */ 398 this_urb->transfer_buffer_length = todo + dataOffset; 399 400 this_urb->dev = port->serial->dev; 401 err = usb_submit_urb(this_urb, GFP_ATOMIC); 402 if (err != 0) 403 dbg("usb_submit_urb(write bulk) failed (%d)", err); 404 p_priv->tx_start_time[flip] = jiffies; 405 406 /* Flip for next time if usa26 or usa28 interface 407 (not used on usa49) */ 408 p_priv->out_flip = (flip + 1) & d_details->outdat_endp_flip; 409 } 410 411 return count - left; 412 } 413 414 static void usa26_indat_callback(struct urb *urb) 415 { 416 int i, err; 417 int endpoint; 418 struct usb_serial_port *port; 419 struct tty_struct *tty; 420 unsigned char *data = urb->transfer_buffer; 421 int status = urb->status; 422 423 dbg("%s", __func__); 424 425 endpoint = usb_pipeendpoint(urb->pipe); 426 427 if (status) { 428 dbg("%s - nonzero status: %x on endpoint %d.", 429 __func__, status, endpoint); 430 return; 431 } 432 433 port = urb->context; 434 tty = tty_port_tty_get(&port->port); 435 if (tty && urb->actual_length) { 436 /* 0x80 bit is error flag */ 437 if ((data[0] & 0x80) == 0) { 438 /* no errors on individual bytes, only 439 possible overrun err */ 440 if (data[0] & RXERROR_OVERRUN) 441 err = TTY_OVERRUN; 442 else 443 err = 0; 444 for (i = 1; i < urb->actual_length ; ++i) 445 tty_insert_flip_char(tty, data[i], err); 446 } else { 447 /* some bytes had errors, every byte has status */ 448 dbg("%s - RX error!!!!", __func__); 449 for (i = 0; i + 1 < urb->actual_length; i += 2) { 450 int stat = data[i], flag = 0; 451 if (stat & RXERROR_OVERRUN) 452 flag |= TTY_OVERRUN; 453 if (stat & RXERROR_FRAMING) 454 flag |= TTY_FRAME; 455 if (stat & RXERROR_PARITY) 456 flag |= TTY_PARITY; 457 /* XXX should handle break (0x10) */ 458 tty_insert_flip_char(tty, data[i+1], flag); 459 } 460 } 461 tty_flip_buffer_push(tty); 462 } 463 tty_kref_put(tty); 464 465 /* Resubmit urb so we continue receiving */ 466 urb->dev = port->serial->dev; 467 if (port->port.count) { 468 err = usb_submit_urb(urb, GFP_ATOMIC); 469 if (err != 0) 470 dbg("%s - resubmit read urb failed. (%d)", 471 __func__, err); 472 } 473 return; 474 } 475 476 /* Outdat handling is common for all devices */ 477 static void usa2x_outdat_callback(struct urb *urb) 478 { 479 struct usb_serial_port *port; 480 struct keyspan_port_private *p_priv; 481 482 port = urb->context; 483 p_priv = usb_get_serial_port_data(port); 484 dbg("%s - urb %d", __func__, urb == p_priv->out_urbs[1]); 485 486 if (port->port.count) 487 usb_serial_port_softint(port); 488 } 489 490 static void usa26_inack_callback(struct urb *urb) 491 { 492 dbg("%s", __func__); 493 494 } 495 496 static void usa26_outcont_callback(struct urb *urb) 497 { 498 struct usb_serial_port *port; 499 struct keyspan_port_private *p_priv; 500 501 port = urb->context; 502 p_priv = usb_get_serial_port_data(port); 503 504 if (p_priv->resend_cont) { 505 dbg("%s - sending setup", __func__); 506 keyspan_usa26_send_setup(port->serial, port, 507 p_priv->resend_cont - 1); 508 } 509 } 510 511 static void usa26_instat_callback(struct urb *urb) 512 { 513 unsigned char *data = urb->transfer_buffer; 514 struct keyspan_usa26_portStatusMessage *msg; 515 struct usb_serial *serial; 516 struct usb_serial_port *port; 517 struct keyspan_port_private *p_priv; 518 struct tty_struct *tty; 519 int old_dcd_state, err; 520 int status = urb->status; 521 522 serial = urb->context; 523 524 if (status) { 525 dbg("%s - nonzero status: %x", __func__, status); 526 return; 527 } 528 if (urb->actual_length != 9) { 529 dbg("%s - %d byte report??", __func__, urb->actual_length); 530 goto exit; 531 } 532 533 msg = (struct keyspan_usa26_portStatusMessage *)data; 534 535 #if 0 536 dbg("%s - port status: port %d cts %d dcd %d dsr %d ri %d toff %d txoff %d rxen %d cr %d", 537 __func__, msg->port, msg->hskia_cts, msg->gpia_dcd, msg->dsr, msg->ri, msg->_txOff, 538 msg->_txXoff, msg->rxEnabled, msg->controlResponse); 539 #endif 540 541 /* Now do something useful with the data */ 542 543 544 /* Check port number from message and retrieve private data */ 545 if (msg->port >= serial->num_ports) { 546 dbg("%s - Unexpected port number %d", __func__, msg->port); 547 goto exit; 548 } 549 port = serial->port[msg->port]; 550 p_priv = usb_get_serial_port_data(port); 551 552 /* Update handshaking pin state information */ 553 old_dcd_state = p_priv->dcd_state; 554 p_priv->cts_state = ((msg->hskia_cts) ? 1 : 0); 555 p_priv->dsr_state = ((msg->dsr) ? 1 : 0); 556 p_priv->dcd_state = ((msg->gpia_dcd) ? 1 : 0); 557 p_priv->ri_state = ((msg->ri) ? 1 : 0); 558 559 if (old_dcd_state != p_priv->dcd_state) { 560 tty = tty_port_tty_get(&port->port); 561 if (tty && !C_CLOCAL(tty)) 562 tty_hangup(tty); 563 tty_kref_put(tty); 564 } 565 566 /* Resubmit urb so we continue receiving */ 567 urb->dev = serial->dev; 568 err = usb_submit_urb(urb, GFP_ATOMIC); 569 if (err != 0) 570 dbg("%s - resubmit read urb failed. (%d)", __func__, err); 571 exit: ; 572 } 573 574 static void usa26_glocont_callback(struct urb *urb) 575 { 576 dbg("%s", __func__); 577 } 578 579 580 static void usa28_indat_callback(struct urb *urb) 581 { 582 int err; 583 struct usb_serial_port *port; 584 struct tty_struct *tty; 585 unsigned char *data; 586 struct keyspan_port_private *p_priv; 587 int status = urb->status; 588 589 dbg("%s", __func__); 590 591 port = urb->context; 592 p_priv = usb_get_serial_port_data(port); 593 data = urb->transfer_buffer; 594 595 if (urb != p_priv->in_urbs[p_priv->in_flip]) 596 return; 597 598 do { 599 if (status) { 600 dbg("%s - nonzero status: %x on endpoint %d.", 601 __func__, status, usb_pipeendpoint(urb->pipe)); 602 return; 603 } 604 605 port = urb->context; 606 p_priv = usb_get_serial_port_data(port); 607 data = urb->transfer_buffer; 608 609 tty =tty_port_tty_get(&port->port); 610 if (tty && urb->actual_length) { 611 tty_insert_flip_string(tty, data, urb->actual_length); 612 tty_flip_buffer_push(tty); 613 } 614 tty_kref_put(tty); 615 616 /* Resubmit urb so we continue receiving */ 617 urb->dev = port->serial->dev; 618 if (port->port.count) { 619 err = usb_submit_urb(urb, GFP_ATOMIC); 620 if (err != 0) 621 dbg("%s - resubmit read urb failed. (%d)", 622 __func__, err); 623 } 624 p_priv->in_flip ^= 1; 625 626 urb = p_priv->in_urbs[p_priv->in_flip]; 627 } while (urb->status != -EINPROGRESS); 628 } 629 630 static void usa28_inack_callback(struct urb *urb) 631 { 632 dbg("%s", __func__); 633 } 634 635 static void usa28_outcont_callback(struct urb *urb) 636 { 637 struct usb_serial_port *port; 638 struct keyspan_port_private *p_priv; 639 640 port = urb->context; 641 p_priv = usb_get_serial_port_data(port); 642 643 if (p_priv->resend_cont) { 644 dbg("%s - sending setup", __func__); 645 keyspan_usa28_send_setup(port->serial, port, 646 p_priv->resend_cont - 1); 647 } 648 } 649 650 static void usa28_instat_callback(struct urb *urb) 651 { 652 int err; 653 unsigned char *data = urb->transfer_buffer; 654 struct keyspan_usa28_portStatusMessage *msg; 655 struct usb_serial *serial; 656 struct usb_serial_port *port; 657 struct keyspan_port_private *p_priv; 658 struct tty_struct *tty; 659 int old_dcd_state; 660 int status = urb->status; 661 662 serial = urb->context; 663 664 if (status) { 665 dbg("%s - nonzero status: %x", __func__, status); 666 return; 667 } 668 669 if (urb->actual_length != sizeof(struct keyspan_usa28_portStatusMessage)) { 670 dbg("%s - bad length %d", __func__, urb->actual_length); 671 goto exit; 672 } 673 674 /*dbg("%s %x %x %x %x %x %x %x %x %x %x %x %x", __func__ 675 data[0], data[1], data[2], data[3], data[4], data[5], 676 data[6], data[7], data[8], data[9], data[10], data[11]);*/ 677 678 /* Now do something useful with the data */ 679 msg = (struct keyspan_usa28_portStatusMessage *)data; 680 681 /* Check port number from message and retrieve private data */ 682 if (msg->port >= serial->num_ports) { 683 dbg("%s - Unexpected port number %d", __func__, msg->port); 684 goto exit; 685 } 686 port = serial->port[msg->port]; 687 p_priv = usb_get_serial_port_data(port); 688 689 /* Update handshaking pin state information */ 690 old_dcd_state = p_priv->dcd_state; 691 p_priv->cts_state = ((msg->cts) ? 1 : 0); 692 p_priv->dsr_state = ((msg->dsr) ? 1 : 0); 693 p_priv->dcd_state = ((msg->dcd) ? 1 : 0); 694 p_priv->ri_state = ((msg->ri) ? 1 : 0); 695 696 if( old_dcd_state != p_priv->dcd_state && old_dcd_state) { 697 tty = tty_port_tty_get(&port->port); 698 if (tty && !C_CLOCAL(tty)) 699 tty_hangup(tty); 700 tty_kref_put(tty); 701 } 702 703 /* Resubmit urb so we continue receiving */ 704 urb->dev = serial->dev; 705 err = usb_submit_urb(urb, GFP_ATOMIC); 706 if (err != 0) 707 dbg("%s - resubmit read urb failed. (%d)", __func__, err); 708 exit: ; 709 } 710 711 static void usa28_glocont_callback(struct urb *urb) 712 { 713 dbg("%s", __func__); 714 } 715 716 717 static void usa49_glocont_callback(struct urb *urb) 718 { 719 struct usb_serial *serial; 720 struct usb_serial_port *port; 721 struct keyspan_port_private *p_priv; 722 int i; 723 724 dbg("%s", __func__); 725 726 serial = urb->context; 727 for (i = 0; i < serial->num_ports; ++i) { 728 port = serial->port[i]; 729 p_priv = usb_get_serial_port_data(port); 730 731 if (p_priv->resend_cont) { 732 dbg("%s - sending setup", __func__); 733 keyspan_usa49_send_setup(serial, port, 734 p_priv->resend_cont - 1); 735 break; 736 } 737 } 738 } 739 740 /* This is actually called glostat in the Keyspan 741 doco */ 742 static void usa49_instat_callback(struct urb *urb) 743 { 744 int err; 745 unsigned char *data = urb->transfer_buffer; 746 struct keyspan_usa49_portStatusMessage *msg; 747 struct usb_serial *serial; 748 struct usb_serial_port *port; 749 struct keyspan_port_private *p_priv; 750 int old_dcd_state; 751 int status = urb->status; 752 753 dbg("%s", __func__); 754 755 serial = urb->context; 756 757 if (status) { 758 dbg("%s - nonzero status: %x", __func__, status); 759 return; 760 } 761 762 if (urb->actual_length != 763 sizeof(struct keyspan_usa49_portStatusMessage)) { 764 dbg("%s - bad length %d", __func__, urb->actual_length); 765 goto exit; 766 } 767 768 /*dbg(" %x %x %x %x %x %x %x %x %x %x %x", __func__, 769 data[0], data[1], data[2], data[3], data[4], data[5], 770 data[6], data[7], data[8], data[9], data[10]);*/ 771 772 /* Now do something useful with the data */ 773 msg = (struct keyspan_usa49_portStatusMessage *)data; 774 775 /* Check port number from message and retrieve private data */ 776 if (msg->portNumber >= serial->num_ports) { 777 dbg("%s - Unexpected port number %d", 778 __func__, msg->portNumber); 779 goto exit; 780 } 781 port = serial->port[msg->portNumber]; 782 p_priv = usb_get_serial_port_data(port); 783 784 /* Update handshaking pin state information */ 785 old_dcd_state = p_priv->dcd_state; 786 p_priv->cts_state = ((msg->cts) ? 1 : 0); 787 p_priv->dsr_state = ((msg->dsr) ? 1 : 0); 788 p_priv->dcd_state = ((msg->dcd) ? 1 : 0); 789 p_priv->ri_state = ((msg->ri) ? 1 : 0); 790 791 if (old_dcd_state != p_priv->dcd_state && old_dcd_state) { 792 struct tty_struct *tty = tty_port_tty_get(&port->port); 793 if (tty && !C_CLOCAL(tty)) 794 tty_hangup(tty); 795 tty_kref_put(tty); 796 } 797 798 /* Resubmit urb so we continue receiving */ 799 urb->dev = serial->dev; 800 801 err = usb_submit_urb(urb, GFP_ATOMIC); 802 if (err != 0) 803 dbg("%s - resubmit read urb failed. (%d)", __func__, err); 804 exit: ; 805 } 806 807 static void usa49_inack_callback(struct urb *urb) 808 { 809 dbg("%s", __func__); 810 } 811 812 static void usa49_indat_callback(struct urb *urb) 813 { 814 int i, err; 815 int endpoint; 816 struct usb_serial_port *port; 817 struct tty_struct *tty; 818 unsigned char *data = urb->transfer_buffer; 819 int status = urb->status; 820 821 dbg("%s", __func__); 822 823 endpoint = usb_pipeendpoint(urb->pipe); 824 825 if (status) { 826 dbg("%s - nonzero status: %x on endpoint %d.", __func__, 827 status, endpoint); 828 return; 829 } 830 831 port = urb->context; 832 tty = tty_port_tty_get(&port->port); 833 if (tty && urb->actual_length) { 834 /* 0x80 bit is error flag */ 835 if ((data[0] & 0x80) == 0) { 836 /* no error on any byte */ 837 tty_insert_flip_string(tty, data + 1, 838 urb->actual_length - 1); 839 } else { 840 /* some bytes had errors, every byte has status */ 841 for (i = 0; i + 1 < urb->actual_length; i += 2) { 842 int stat = data[i], flag = 0; 843 if (stat & RXERROR_OVERRUN) 844 flag |= TTY_OVERRUN; 845 if (stat & RXERROR_FRAMING) 846 flag |= TTY_FRAME; 847 if (stat & RXERROR_PARITY) 848 flag |= TTY_PARITY; 849 /* XXX should handle break (0x10) */ 850 tty_insert_flip_char(tty, data[i+1], flag); 851 } 852 } 853 tty_flip_buffer_push(tty); 854 } 855 tty_kref_put(tty); 856 857 /* Resubmit urb so we continue receiving */ 858 urb->dev = port->serial->dev; 859 if (port->port.count) { 860 err = usb_submit_urb(urb, GFP_ATOMIC); 861 if (err != 0) 862 dbg("%s - resubmit read urb failed. (%d)", 863 __func__, err); 864 } 865 } 866 867 static void usa49wg_indat_callback(struct urb *urb) 868 { 869 int i, len, x, err; 870 struct usb_serial *serial; 871 struct usb_serial_port *port; 872 struct tty_struct *tty; 873 unsigned char *data = urb->transfer_buffer; 874 int status = urb->status; 875 876 dbg("%s", __func__); 877 878 serial = urb->context; 879 880 if (status) { 881 dbg("%s - nonzero status: %x", __func__, status); 882 return; 883 } 884 885 /* inbound data is in the form P#, len, status, data */ 886 i = 0; 887 len = 0; 888 889 if (urb->actual_length) { 890 while (i < urb->actual_length) { 891 892 /* Check port number from message*/ 893 if (data[i] >= serial->num_ports) { 894 dbg("%s - Unexpected port number %d", 895 __func__, data[i]); 896 return; 897 } 898 port = serial->port[data[i++]]; 899 tty = tty_port_tty_get(&port->port); 900 len = data[i++]; 901 902 /* 0x80 bit is error flag */ 903 if ((data[i] & 0x80) == 0) { 904 /* no error on any byte */ 905 i++; 906 for (x = 1; x < len ; ++x) 907 if (port->port.count) 908 tty_insert_flip_char(tty, 909 data[i++], 0); 910 else 911 i++; 912 } else { 913 /* 914 * some bytes had errors, every byte has status 915 */ 916 for (x = 0; x + 1 < len; x += 2) { 917 int stat = data[i], flag = 0; 918 if (stat & RXERROR_OVERRUN) 919 flag |= TTY_OVERRUN; 920 if (stat & RXERROR_FRAMING) 921 flag |= TTY_FRAME; 922 if (stat & RXERROR_PARITY) 923 flag |= TTY_PARITY; 924 /* XXX should handle break (0x10) */ 925 if (port->port.count) 926 tty_insert_flip_char(tty, 927 data[i+1], flag); 928 i += 2; 929 } 930 } 931 if (port->port.count) 932 tty_flip_buffer_push(tty); 933 tty_kref_put(tty); 934 } 935 } 936 937 /* Resubmit urb so we continue receiving */ 938 urb->dev = serial->dev; 939 940 err = usb_submit_urb(urb, GFP_ATOMIC); 941 if (err != 0) 942 dbg("%s - resubmit read urb failed. (%d)", __func__, err); 943 } 944 945 /* not used, usa-49 doesn't have per-port control endpoints */ 946 static void usa49_outcont_callback(struct urb *urb) 947 { 948 dbg("%s", __func__); 949 } 950 951 static void usa90_indat_callback(struct urb *urb) 952 { 953 int i, err; 954 int endpoint; 955 struct usb_serial_port *port; 956 struct keyspan_port_private *p_priv; 957 struct tty_struct *tty; 958 unsigned char *data = urb->transfer_buffer; 959 int status = urb->status; 960 961 dbg("%s", __func__); 962 963 endpoint = usb_pipeendpoint(urb->pipe); 964 965 if (status) { 966 dbg("%s - nonzero status: %x on endpoint %d.", 967 __func__, status, endpoint); 968 return; 969 } 970 971 port = urb->context; 972 p_priv = usb_get_serial_port_data(port); 973 974 if (urb->actual_length) { 975 tty = tty_port_tty_get(&port->port); 976 /* if current mode is DMA, looks like usa28 format 977 otherwise looks like usa26 data format */ 978 979 if (p_priv->baud > 57600) 980 tty_insert_flip_string(tty, data, urb->actual_length); 981 else { 982 /* 0x80 bit is error flag */ 983 if ((data[0] & 0x80) == 0) { 984 /* no errors on individual bytes, only 985 possible overrun err*/ 986 if (data[0] & RXERROR_OVERRUN) 987 err = TTY_OVERRUN; 988 else 989 err = 0; 990 for (i = 1; i < urb->actual_length ; ++i) 991 tty_insert_flip_char(tty, data[i], 992 err); 993 } else { 994 /* some bytes had errors, every byte has status */ 995 dbg("%s - RX error!!!!", __func__); 996 for (i = 0; i + 1 < urb->actual_length; i += 2) { 997 int stat = data[i], flag = 0; 998 if (stat & RXERROR_OVERRUN) 999 flag |= TTY_OVERRUN; 1000 if (stat & RXERROR_FRAMING) 1001 flag |= TTY_FRAME; 1002 if (stat & RXERROR_PARITY) 1003 flag |= TTY_PARITY; 1004 /* XXX should handle break (0x10) */ 1005 tty_insert_flip_char(tty, data[i+1], 1006 flag); 1007 } 1008 } 1009 } 1010 tty_flip_buffer_push(tty); 1011 tty_kref_put(tty); 1012 } 1013 1014 /* Resubmit urb so we continue receiving */ 1015 urb->dev = port->serial->dev; 1016 if (port->port.count) { 1017 err = usb_submit_urb(urb, GFP_ATOMIC); 1018 if (err != 0) 1019 dbg("%s - resubmit read urb failed. (%d)", 1020 __func__, err); 1021 } 1022 return; 1023 } 1024 1025 1026 static void usa90_instat_callback(struct urb *urb) 1027 { 1028 unsigned char *data = urb->transfer_buffer; 1029 struct keyspan_usa90_portStatusMessage *msg; 1030 struct usb_serial *serial; 1031 struct usb_serial_port *port; 1032 struct keyspan_port_private *p_priv; 1033 struct tty_struct *tty; 1034 int old_dcd_state, err; 1035 int status = urb->status; 1036 1037 serial = urb->context; 1038 1039 if (status) { 1040 dbg("%s - nonzero status: %x", __func__, status); 1041 return; 1042 } 1043 if (urb->actual_length < 14) { 1044 dbg("%s - %d byte report??", __func__, urb->actual_length); 1045 goto exit; 1046 } 1047 1048 msg = (struct keyspan_usa90_portStatusMessage *)data; 1049 1050 /* Now do something useful with the data */ 1051 1052 port = serial->port[0]; 1053 p_priv = usb_get_serial_port_data(port); 1054 1055 /* Update handshaking pin state information */ 1056 old_dcd_state = p_priv->dcd_state; 1057 p_priv->cts_state = ((msg->cts) ? 1 : 0); 1058 p_priv->dsr_state = ((msg->dsr) ? 1 : 0); 1059 p_priv->dcd_state = ((msg->dcd) ? 1 : 0); 1060 p_priv->ri_state = ((msg->ri) ? 1 : 0); 1061 1062 if (old_dcd_state != p_priv->dcd_state && old_dcd_state) { 1063 tty = tty_port_tty_get(&port->port); 1064 if (tty && !C_CLOCAL(tty)) 1065 tty_hangup(tty); 1066 tty_kref_put(tty); 1067 } 1068 1069 /* Resubmit urb so we continue receiving */ 1070 urb->dev = serial->dev; 1071 err = usb_submit_urb(urb, GFP_ATOMIC); 1072 if (err != 0) 1073 dbg("%s - resubmit read urb failed. (%d)", __func__, err); 1074 exit: 1075 ; 1076 } 1077 1078 static void usa90_outcont_callback(struct urb *urb) 1079 { 1080 struct usb_serial_port *port; 1081 struct keyspan_port_private *p_priv; 1082 1083 port = urb->context; 1084 p_priv = usb_get_serial_port_data(port); 1085 1086 if (p_priv->resend_cont) { 1087 dbg("%s - sending setup", __func__); 1088 keyspan_usa90_send_setup(port->serial, port, 1089 p_priv->resend_cont - 1); 1090 } 1091 } 1092 1093 /* Status messages from the 28xg */ 1094 static void usa67_instat_callback(struct urb *urb) 1095 { 1096 int err; 1097 unsigned char *data = urb->transfer_buffer; 1098 struct keyspan_usa67_portStatusMessage *msg; 1099 struct usb_serial *serial; 1100 struct usb_serial_port *port; 1101 struct keyspan_port_private *p_priv; 1102 int old_dcd_state; 1103 int status = urb->status; 1104 1105 dbg("%s", __func__); 1106 1107 serial = urb->context; 1108 1109 if (status) { 1110 dbg("%s - nonzero status: %x", __func__, status); 1111 return; 1112 } 1113 1114 if (urb->actual_length != 1115 sizeof(struct keyspan_usa67_portStatusMessage)) { 1116 dbg("%s - bad length %d", __func__, urb->actual_length); 1117 return; 1118 } 1119 1120 1121 /* Now do something useful with the data */ 1122 msg = (struct keyspan_usa67_portStatusMessage *)data; 1123 1124 /* Check port number from message and retrieve private data */ 1125 if (msg->port >= serial->num_ports) { 1126 dbg("%s - Unexpected port number %d", __func__, msg->port); 1127 return; 1128 } 1129 1130 port = serial->port[msg->port]; 1131 p_priv = usb_get_serial_port_data(port); 1132 1133 /* Update handshaking pin state information */ 1134 old_dcd_state = p_priv->dcd_state; 1135 p_priv->cts_state = ((msg->hskia_cts) ? 1 : 0); 1136 p_priv->dcd_state = ((msg->gpia_dcd) ? 1 : 0); 1137 1138 if (old_dcd_state != p_priv->dcd_state && old_dcd_state) { 1139 struct tty_struct *tty = tty_port_tty_get(&port->port); 1140 if (tty && !C_CLOCAL(tty)) 1141 tty_hangup(tty); 1142 tty_kref_put(tty); 1143 } 1144 1145 /* Resubmit urb so we continue receiving */ 1146 urb->dev = serial->dev; 1147 err = usb_submit_urb(urb, GFP_ATOMIC); 1148 if (err != 0) 1149 dbg("%s - resubmit read urb failed. (%d)", __func__, err); 1150 } 1151 1152 static void usa67_glocont_callback(struct urb *urb) 1153 { 1154 struct usb_serial *serial; 1155 struct usb_serial_port *port; 1156 struct keyspan_port_private *p_priv; 1157 int i; 1158 1159 dbg("%s", __func__); 1160 1161 serial = urb->context; 1162 for (i = 0; i < serial->num_ports; ++i) { 1163 port = serial->port[i]; 1164 p_priv = usb_get_serial_port_data(port); 1165 1166 if (p_priv->resend_cont) { 1167 dbg("%s - sending setup", __func__); 1168 keyspan_usa67_send_setup(serial, port, 1169 p_priv->resend_cont - 1); 1170 break; 1171 } 1172 } 1173 } 1174 1175 static int keyspan_write_room(struct tty_struct *tty) 1176 { 1177 struct usb_serial_port *port = tty->driver_data; 1178 struct keyspan_port_private *p_priv; 1179 const struct keyspan_device_details *d_details; 1180 int flip; 1181 int data_len; 1182 struct urb *this_urb; 1183 1184 dbg("%s", __func__); 1185 p_priv = usb_get_serial_port_data(port); 1186 d_details = p_priv->device_details; 1187 1188 /* FIXME: locking */ 1189 if (d_details->msg_format == msg_usa90) 1190 data_len = 64; 1191 else 1192 data_len = 63; 1193 1194 flip = p_priv->out_flip; 1195 1196 /* Check both endpoints to see if any are available. */ 1197 this_urb = p_priv->out_urbs[flip]; 1198 if (this_urb != NULL) { 1199 if (this_urb->status != -EINPROGRESS) 1200 return data_len; 1201 flip = (flip + 1) & d_details->outdat_endp_flip; 1202 this_urb = p_priv->out_urbs[flip]; 1203 if (this_urb != NULL) { 1204 if (this_urb->status != -EINPROGRESS) 1205 return data_len; 1206 } 1207 } 1208 return 0; 1209 } 1210 1211 1212 static int keyspan_open(struct tty_struct *tty, 1213 struct usb_serial_port *port, struct file *filp) 1214 { 1215 struct keyspan_port_private *p_priv; 1216 struct keyspan_serial_private *s_priv; 1217 struct usb_serial *serial = port->serial; 1218 const struct keyspan_device_details *d_details; 1219 int i, err; 1220 int baud_rate, device_port; 1221 struct urb *urb; 1222 unsigned int cflag = 0; 1223 1224 s_priv = usb_get_serial_data(serial); 1225 p_priv = usb_get_serial_port_data(port); 1226 d_details = p_priv->device_details; 1227 1228 dbg("%s - port%d.", __func__, port->number); 1229 1230 /* Set some sane defaults */ 1231 p_priv->rts_state = 1; 1232 p_priv->dtr_state = 1; 1233 p_priv->baud = 9600; 1234 1235 /* force baud and lcr to be set on open */ 1236 p_priv->old_baud = 0; 1237 p_priv->old_cflag = 0; 1238 1239 p_priv->out_flip = 0; 1240 p_priv->in_flip = 0; 1241 1242 /* Reset low level data toggle and start reading from endpoints */ 1243 for (i = 0; i < 2; i++) { 1244 urb = p_priv->in_urbs[i]; 1245 if (urb == NULL) 1246 continue; 1247 urb->dev = serial->dev; 1248 1249 /* make sure endpoint data toggle is synchronized 1250 with the device */ 1251 usb_clear_halt(urb->dev, urb->pipe); 1252 err = usb_submit_urb(urb, GFP_KERNEL); 1253 if (err != 0) 1254 dbg("%s - submit urb %d failed (%d)", 1255 __func__, i, err); 1256 } 1257 1258 /* Reset low level data toggle on out endpoints */ 1259 for (i = 0; i < 2; i++) { 1260 urb = p_priv->out_urbs[i]; 1261 if (urb == NULL) 1262 continue; 1263 urb->dev = serial->dev; 1264 /* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe), 1265 usb_pipeout(urb->pipe), 0); */ 1266 } 1267 1268 /* get the terminal config for the setup message now so we don't 1269 * need to send 2 of them */ 1270 1271 device_port = port->number - port->serial->minor; 1272 if (tty) { 1273 cflag = tty->termios->c_cflag; 1274 /* Baud rate calculation takes baud rate as an integer 1275 so other rates can be generated if desired. */ 1276 baud_rate = tty_get_baud_rate(tty); 1277 /* If no match or invalid, leave as default */ 1278 if (baud_rate >= 0 1279 && d_details->calculate_baud_rate(baud_rate, d_details->baudclk, 1280 NULL, NULL, NULL, device_port) == KEYSPAN_BAUD_RATE_OK) { 1281 p_priv->baud = baud_rate; 1282 } 1283 } 1284 /* set CTS/RTS handshake etc. */ 1285 p_priv->cflag = cflag; 1286 p_priv->flow_control = (cflag & CRTSCTS)? flow_cts: flow_none; 1287 1288 keyspan_send_setup(port, 1); 1289 /* mdelay(100); */ 1290 /* keyspan_set_termios(port, NULL); */ 1291 1292 return 0; 1293 } 1294 1295 static inline void stop_urb(struct urb *urb) 1296 { 1297 if (urb && urb->status == -EINPROGRESS) 1298 usb_kill_urb(urb); 1299 } 1300 1301 static void keyspan_dtr_rts(struct usb_serial_port *port, int on) 1302 { 1303 struct keyspan_port_private *p_priv = usb_get_serial_port_data(port); 1304 1305 p_priv->rts_state = on; 1306 p_priv->dtr_state = on; 1307 keyspan_send_setup(port, 0); 1308 } 1309 1310 static void keyspan_close(struct usb_serial_port *port) 1311 { 1312 int i; 1313 struct usb_serial *serial = port->serial; 1314 struct keyspan_serial_private *s_priv; 1315 struct keyspan_port_private *p_priv; 1316 1317 dbg("%s", __func__); 1318 s_priv = usb_get_serial_data(serial); 1319 p_priv = usb_get_serial_port_data(port); 1320 1321 p_priv->rts_state = 0; 1322 p_priv->dtr_state = 0; 1323 1324 if (serial->dev) { 1325 keyspan_send_setup(port, 2); 1326 /* pilot-xfer seems to work best with this delay */ 1327 mdelay(100); 1328 /* keyspan_set_termios(port, NULL); */ 1329 } 1330 1331 /*while (p_priv->outcont_urb->status == -EINPROGRESS) { 1332 dbg("%s - urb in progress", __func__); 1333 }*/ 1334 1335 p_priv->out_flip = 0; 1336 p_priv->in_flip = 0; 1337 1338 if (serial->dev) { 1339 /* Stop reading/writing urbs */ 1340 stop_urb(p_priv->inack_urb); 1341 /* stop_urb(p_priv->outcont_urb); */ 1342 for (i = 0; i < 2; i++) { 1343 stop_urb(p_priv->in_urbs[i]); 1344 stop_urb(p_priv->out_urbs[i]); 1345 } 1346 } 1347 } 1348 1349 /* download the firmware to a pre-renumeration device */ 1350 static int keyspan_fake_startup(struct usb_serial *serial) 1351 { 1352 int response; 1353 const struct ihex_binrec *record; 1354 char *fw_name; 1355 const struct firmware *fw; 1356 1357 dbg("Keyspan startup version %04x product %04x", 1358 le16_to_cpu(serial->dev->descriptor.bcdDevice), 1359 le16_to_cpu(serial->dev->descriptor.idProduct)); 1360 1361 if ((le16_to_cpu(serial->dev->descriptor.bcdDevice) & 0x8000) 1362 != 0x8000) { 1363 dbg("Firmware already loaded. Quitting."); 1364 return 1; 1365 } 1366 1367 /* Select firmware image on the basis of idProduct */ 1368 switch (le16_to_cpu(serial->dev->descriptor.idProduct)) { 1369 case keyspan_usa28_pre_product_id: 1370 fw_name = "keyspan/usa28.fw"; 1371 break; 1372 1373 case keyspan_usa28x_pre_product_id: 1374 fw_name = "keyspan/usa28x.fw"; 1375 break; 1376 1377 case keyspan_usa28xa_pre_product_id: 1378 fw_name = "keyspan/usa28xa.fw"; 1379 break; 1380 1381 case keyspan_usa28xb_pre_product_id: 1382 fw_name = "keyspan/usa28xb.fw"; 1383 break; 1384 1385 case keyspan_usa19_pre_product_id: 1386 fw_name = "keyspan/usa19.fw"; 1387 break; 1388 1389 case keyspan_usa19qi_pre_product_id: 1390 fw_name = "keyspan/usa19qi.fw"; 1391 break; 1392 1393 case keyspan_mpr_pre_product_id: 1394 fw_name = "keyspan/mpr.fw"; 1395 break; 1396 1397 case keyspan_usa19qw_pre_product_id: 1398 fw_name = "keyspan/usa19qw.fw"; 1399 break; 1400 1401 case keyspan_usa18x_pre_product_id: 1402 fw_name = "keyspan/usa18x.fw"; 1403 break; 1404 1405 case keyspan_usa19w_pre_product_id: 1406 fw_name = "keyspan/usa19w.fw"; 1407 break; 1408 1409 case keyspan_usa49w_pre_product_id: 1410 fw_name = "keyspan/usa49w.fw"; 1411 break; 1412 1413 case keyspan_usa49wlc_pre_product_id: 1414 fw_name = "keyspan/usa49wlc.fw"; 1415 break; 1416 1417 default: 1418 dev_err(&serial->dev->dev, "Unknown product ID (%04x)\n", 1419 le16_to_cpu(serial->dev->descriptor.idProduct)); 1420 return 1; 1421 } 1422 1423 if (request_ihex_firmware(&fw, fw_name, &serial->dev->dev)) { 1424 dev_err(&serial->dev->dev, "Required keyspan firmware image (%s) unavailable.\n", fw_name); 1425 return(1); 1426 } 1427 1428 dbg("Uploading Keyspan %s firmware.", fw_name); 1429 1430 /* download the firmware image */ 1431 response = ezusb_set_reset(serial, 1); 1432 1433 record = (const struct ihex_binrec *)fw->data; 1434 1435 while (record) { 1436 response = ezusb_writememory(serial, be32_to_cpu(record->addr), 1437 (unsigned char *)record->data, 1438 be16_to_cpu(record->len), 0xa0); 1439 if (response < 0) { 1440 dev_err(&serial->dev->dev, "ezusb_writememory failed for Keyspan firmware (%d %04X %p %d)\n", 1441 response, be32_to_cpu(record->addr), 1442 record->data, be16_to_cpu(record->len)); 1443 break; 1444 } 1445 record = ihex_next_binrec(record); 1446 } 1447 release_firmware(fw); 1448 /* bring device out of reset. Renumeration will occur in a 1449 moment and the new device will bind to the real driver */ 1450 response = ezusb_set_reset(serial, 0); 1451 1452 /* we don't want this device to have a driver assigned to it. */ 1453 return 1; 1454 } 1455 1456 /* Helper functions used by keyspan_setup_urbs */ 1457 static struct usb_endpoint_descriptor const *find_ep(struct usb_serial const *serial, 1458 int endpoint) 1459 { 1460 struct usb_host_interface *iface_desc; 1461 struct usb_endpoint_descriptor *ep; 1462 int i; 1463 1464 iface_desc = serial->interface->cur_altsetting; 1465 for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) { 1466 ep = &iface_desc->endpoint[i].desc; 1467 if (ep->bEndpointAddress == endpoint) 1468 return ep; 1469 } 1470 dev_warn(&serial->interface->dev, "found no endpoint descriptor for " 1471 "endpoint %x\n", endpoint); 1472 return NULL; 1473 } 1474 1475 static struct urb *keyspan_setup_urb(struct usb_serial *serial, int endpoint, 1476 int dir, void *ctx, char *buf, int len, 1477 void (*callback)(struct urb *)) 1478 { 1479 struct urb *urb; 1480 struct usb_endpoint_descriptor const *ep_desc; 1481 char const *ep_type_name; 1482 1483 if (endpoint == -1) 1484 return NULL; /* endpoint not needed */ 1485 1486 dbg("%s - alloc for endpoint %d.", __func__, endpoint); 1487 urb = usb_alloc_urb(0, GFP_KERNEL); /* No ISO */ 1488 if (urb == NULL) { 1489 dbg("%s - alloc for endpoint %d failed.", __func__, endpoint); 1490 return NULL; 1491 } 1492 1493 if (endpoint == 0) { 1494 /* control EP filled in when used */ 1495 return urb; 1496 } 1497 1498 ep_desc = find_ep(serial, endpoint); 1499 if (!ep_desc) { 1500 /* leak the urb, something's wrong and the callers don't care */ 1501 return urb; 1502 } 1503 if (usb_endpoint_xfer_int(ep_desc)) { 1504 ep_type_name = "INT"; 1505 usb_fill_int_urb(urb, serial->dev, 1506 usb_sndintpipe(serial->dev, endpoint) | dir, 1507 buf, len, callback, ctx, 1508 ep_desc->bInterval); 1509 } else if (usb_endpoint_xfer_bulk(ep_desc)) { 1510 ep_type_name = "BULK"; 1511 usb_fill_bulk_urb(urb, serial->dev, 1512 usb_sndbulkpipe(serial->dev, endpoint) | dir, 1513 buf, len, callback, ctx); 1514 } else { 1515 dev_warn(&serial->interface->dev, 1516 "unsupported endpoint type %x\n", 1517 usb_endpoint_type(ep_desc)); 1518 usb_free_urb(urb); 1519 return NULL; 1520 } 1521 1522 dbg("%s - using urb %p for %s endpoint %x", 1523 __func__, urb, ep_type_name, endpoint); 1524 return urb; 1525 } 1526 1527 static struct callbacks { 1528 void (*instat_callback)(struct urb *); 1529 void (*glocont_callback)(struct urb *); 1530 void (*indat_callback)(struct urb *); 1531 void (*outdat_callback)(struct urb *); 1532 void (*inack_callback)(struct urb *); 1533 void (*outcont_callback)(struct urb *); 1534 } keyspan_callbacks[] = { 1535 { 1536 /* msg_usa26 callbacks */ 1537 .instat_callback = usa26_instat_callback, 1538 .glocont_callback = usa26_glocont_callback, 1539 .indat_callback = usa26_indat_callback, 1540 .outdat_callback = usa2x_outdat_callback, 1541 .inack_callback = usa26_inack_callback, 1542 .outcont_callback = usa26_outcont_callback, 1543 }, { 1544 /* msg_usa28 callbacks */ 1545 .instat_callback = usa28_instat_callback, 1546 .glocont_callback = usa28_glocont_callback, 1547 .indat_callback = usa28_indat_callback, 1548 .outdat_callback = usa2x_outdat_callback, 1549 .inack_callback = usa28_inack_callback, 1550 .outcont_callback = usa28_outcont_callback, 1551 }, { 1552 /* msg_usa49 callbacks */ 1553 .instat_callback = usa49_instat_callback, 1554 .glocont_callback = usa49_glocont_callback, 1555 .indat_callback = usa49_indat_callback, 1556 .outdat_callback = usa2x_outdat_callback, 1557 .inack_callback = usa49_inack_callback, 1558 .outcont_callback = usa49_outcont_callback, 1559 }, { 1560 /* msg_usa90 callbacks */ 1561 .instat_callback = usa90_instat_callback, 1562 .glocont_callback = usa28_glocont_callback, 1563 .indat_callback = usa90_indat_callback, 1564 .outdat_callback = usa2x_outdat_callback, 1565 .inack_callback = usa28_inack_callback, 1566 .outcont_callback = usa90_outcont_callback, 1567 }, { 1568 /* msg_usa67 callbacks */ 1569 .instat_callback = usa67_instat_callback, 1570 .glocont_callback = usa67_glocont_callback, 1571 .indat_callback = usa26_indat_callback, 1572 .outdat_callback = usa2x_outdat_callback, 1573 .inack_callback = usa26_inack_callback, 1574 .outcont_callback = usa26_outcont_callback, 1575 } 1576 }; 1577 1578 /* Generic setup urbs function that uses 1579 data in device_details */ 1580 static void keyspan_setup_urbs(struct usb_serial *serial) 1581 { 1582 int i, j; 1583 struct keyspan_serial_private *s_priv; 1584 const struct keyspan_device_details *d_details; 1585 struct usb_serial_port *port; 1586 struct keyspan_port_private *p_priv; 1587 struct callbacks *cback; 1588 int endp; 1589 1590 dbg("%s", __func__); 1591 1592 s_priv = usb_get_serial_data(serial); 1593 d_details = s_priv->device_details; 1594 1595 /* Setup values for the various callback routines */ 1596 cback = &keyspan_callbacks[d_details->msg_format]; 1597 1598 /* Allocate and set up urbs for each one that is in use, 1599 starting with instat endpoints */ 1600 s_priv->instat_urb = keyspan_setup_urb 1601 (serial, d_details->instat_endpoint, USB_DIR_IN, 1602 serial, s_priv->instat_buf, INSTAT_BUFLEN, 1603 cback->instat_callback); 1604 1605 s_priv->indat_urb = keyspan_setup_urb 1606 (serial, d_details->indat_endpoint, USB_DIR_IN, 1607 serial, s_priv->indat_buf, INDAT49W_BUFLEN, 1608 usa49wg_indat_callback); 1609 1610 s_priv->glocont_urb = keyspan_setup_urb 1611 (serial, d_details->glocont_endpoint, USB_DIR_OUT, 1612 serial, s_priv->glocont_buf, GLOCONT_BUFLEN, 1613 cback->glocont_callback); 1614 1615 /* Setup endpoints for each port specific thing */ 1616 for (i = 0; i < d_details->num_ports; i++) { 1617 port = serial->port[i]; 1618 p_priv = usb_get_serial_port_data(port); 1619 1620 /* Do indat endpoints first, once for each flip */ 1621 endp = d_details->indat_endpoints[i]; 1622 for (j = 0; j <= d_details->indat_endp_flip; ++j, ++endp) { 1623 p_priv->in_urbs[j] = keyspan_setup_urb 1624 (serial, endp, USB_DIR_IN, port, 1625 p_priv->in_buffer[j], 64, 1626 cback->indat_callback); 1627 } 1628 for (; j < 2; ++j) 1629 p_priv->in_urbs[j] = NULL; 1630 1631 /* outdat endpoints also have flip */ 1632 endp = d_details->outdat_endpoints[i]; 1633 for (j = 0; j <= d_details->outdat_endp_flip; ++j, ++endp) { 1634 p_priv->out_urbs[j] = keyspan_setup_urb 1635 (serial, endp, USB_DIR_OUT, port, 1636 p_priv->out_buffer[j], 64, 1637 cback->outdat_callback); 1638 } 1639 for (; j < 2; ++j) 1640 p_priv->out_urbs[j] = NULL; 1641 1642 /* inack endpoint */ 1643 p_priv->inack_urb = keyspan_setup_urb 1644 (serial, d_details->inack_endpoints[i], USB_DIR_IN, 1645 port, p_priv->inack_buffer, 1, cback->inack_callback); 1646 1647 /* outcont endpoint */ 1648 p_priv->outcont_urb = keyspan_setup_urb 1649 (serial, d_details->outcont_endpoints[i], USB_DIR_OUT, 1650 port, p_priv->outcont_buffer, 64, 1651 cback->outcont_callback); 1652 } 1653 } 1654 1655 /* usa19 function doesn't require prescaler */ 1656 static int keyspan_usa19_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi, 1657 u8 *rate_low, u8 *prescaler, int portnum) 1658 { 1659 u32 b16, /* baud rate times 16 (actual rate used internally) */ 1660 div, /* divisor */ 1661 cnt; /* inverse of divisor (programmed into 8051) */ 1662 1663 dbg("%s - %d.", __func__, baud_rate); 1664 1665 /* prevent divide by zero... */ 1666 b16 = baud_rate * 16L; 1667 if (b16 == 0) 1668 return KEYSPAN_INVALID_BAUD_RATE; 1669 /* Any "standard" rate over 57k6 is marginal on the USA-19 1670 as we run out of divisor resolution. */ 1671 if (baud_rate > 57600) 1672 return KEYSPAN_INVALID_BAUD_RATE; 1673 1674 /* calculate the divisor and the counter (its inverse) */ 1675 div = baudclk / b16; 1676 if (div == 0) 1677 return KEYSPAN_INVALID_BAUD_RATE; 1678 else 1679 cnt = 0 - div; 1680 1681 if (div > 0xffff) 1682 return KEYSPAN_INVALID_BAUD_RATE; 1683 1684 /* return the counter values if non-null */ 1685 if (rate_low) 1686 *rate_low = (u8) (cnt & 0xff); 1687 if (rate_hi) 1688 *rate_hi = (u8) ((cnt >> 8) & 0xff); 1689 if (rate_low && rate_hi) 1690 dbg("%s - %d %02x %02x.", 1691 __func__, baud_rate, *rate_hi, *rate_low); 1692 return KEYSPAN_BAUD_RATE_OK; 1693 } 1694 1695 /* usa19hs function doesn't require prescaler */ 1696 static int keyspan_usa19hs_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi, 1697 u8 *rate_low, u8 *prescaler, int portnum) 1698 { 1699 u32 b16, /* baud rate times 16 (actual rate used internally) */ 1700 div; /* divisor */ 1701 1702 dbg("%s - %d.", __func__, baud_rate); 1703 1704 /* prevent divide by zero... */ 1705 b16 = baud_rate * 16L; 1706 if (b16 == 0) 1707 return KEYSPAN_INVALID_BAUD_RATE; 1708 1709 /* calculate the divisor */ 1710 div = baudclk / b16; 1711 if (div == 0) 1712 return KEYSPAN_INVALID_BAUD_RATE; 1713 1714 if (div > 0xffff) 1715 return KEYSPAN_INVALID_BAUD_RATE; 1716 1717 /* return the counter values if non-null */ 1718 if (rate_low) 1719 *rate_low = (u8) (div & 0xff); 1720 1721 if (rate_hi) 1722 *rate_hi = (u8) ((div >> 8) & 0xff); 1723 1724 if (rate_low && rate_hi) 1725 dbg("%s - %d %02x %02x.", 1726 __func__, baud_rate, *rate_hi, *rate_low); 1727 1728 return KEYSPAN_BAUD_RATE_OK; 1729 } 1730 1731 static int keyspan_usa19w_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi, 1732 u8 *rate_low, u8 *prescaler, int portnum) 1733 { 1734 u32 b16, /* baud rate times 16 (actual rate used internally) */ 1735 clk, /* clock with 13/8 prescaler */ 1736 div, /* divisor using 13/8 prescaler */ 1737 res, /* resulting baud rate using 13/8 prescaler */ 1738 diff, /* error using 13/8 prescaler */ 1739 smallest_diff; 1740 u8 best_prescaler; 1741 int i; 1742 1743 dbg("%s - %d.", __func__, baud_rate); 1744 1745 /* prevent divide by zero */ 1746 b16 = baud_rate * 16L; 1747 if (b16 == 0) 1748 return KEYSPAN_INVALID_BAUD_RATE; 1749 1750 /* Calculate prescaler by trying them all and looking 1751 for best fit */ 1752 1753 /* start with largest possible difference */ 1754 smallest_diff = 0xffffffff; 1755 1756 /* 0 is an invalid prescaler, used as a flag */ 1757 best_prescaler = 0; 1758 1759 for (i = 8; i <= 0xff; ++i) { 1760 clk = (baudclk * 8) / (u32) i; 1761 1762 div = clk / b16; 1763 if (div == 0) 1764 continue; 1765 1766 res = clk / div; 1767 diff = (res > b16) ? (res-b16) : (b16-res); 1768 1769 if (diff < smallest_diff) { 1770 best_prescaler = i; 1771 smallest_diff = diff; 1772 } 1773 } 1774 1775 if (best_prescaler == 0) 1776 return KEYSPAN_INVALID_BAUD_RATE; 1777 1778 clk = (baudclk * 8) / (u32) best_prescaler; 1779 div = clk / b16; 1780 1781 /* return the divisor and prescaler if non-null */ 1782 if (rate_low) 1783 *rate_low = (u8) (div & 0xff); 1784 if (rate_hi) 1785 *rate_hi = (u8) ((div >> 8) & 0xff); 1786 if (prescaler) { 1787 *prescaler = best_prescaler; 1788 /* dbg("%s - %d %d", __func__, *prescaler, div); */ 1789 } 1790 return KEYSPAN_BAUD_RATE_OK; 1791 } 1792 1793 /* USA-28 supports different maximum baud rates on each port */ 1794 static int keyspan_usa28_calc_baud(u32 baud_rate, u32 baudclk, u8 *rate_hi, 1795 u8 *rate_low, u8 *prescaler, int portnum) 1796 { 1797 u32 b16, /* baud rate times 16 (actual rate used internally) */ 1798 div, /* divisor */ 1799 cnt; /* inverse of divisor (programmed into 8051) */ 1800 1801 dbg("%s - %d.", __func__, baud_rate); 1802 1803 /* prevent divide by zero */ 1804 b16 = baud_rate * 16L; 1805 if (b16 == 0) 1806 return KEYSPAN_INVALID_BAUD_RATE; 1807 1808 /* calculate the divisor and the counter (its inverse) */ 1809 div = KEYSPAN_USA28_BAUDCLK / b16; 1810 if (div == 0) 1811 return KEYSPAN_INVALID_BAUD_RATE; 1812 else 1813 cnt = 0 - div; 1814 1815 /* check for out of range, based on portnum, 1816 and return result */ 1817 if (portnum == 0) { 1818 if (div > 0xffff) 1819 return KEYSPAN_INVALID_BAUD_RATE; 1820 } else { 1821 if (portnum == 1) { 1822 if (div > 0xff) 1823 return KEYSPAN_INVALID_BAUD_RATE; 1824 } else 1825 return KEYSPAN_INVALID_BAUD_RATE; 1826 } 1827 1828 /* return the counter values if not NULL 1829 (port 1 will ignore retHi) */ 1830 if (rate_low) 1831 *rate_low = (u8) (cnt & 0xff); 1832 if (rate_hi) 1833 *rate_hi = (u8) ((cnt >> 8) & 0xff); 1834 dbg("%s - %d OK.", __func__, baud_rate); 1835 return KEYSPAN_BAUD_RATE_OK; 1836 } 1837 1838 static int keyspan_usa26_send_setup(struct usb_serial *serial, 1839 struct usb_serial_port *port, 1840 int reset_port) 1841 { 1842 struct keyspan_usa26_portControlMessage msg; 1843 struct keyspan_serial_private *s_priv; 1844 struct keyspan_port_private *p_priv; 1845 const struct keyspan_device_details *d_details; 1846 int outcont_urb; 1847 struct urb *this_urb; 1848 int device_port, err; 1849 1850 dbg("%s reset=%d", __func__, reset_port); 1851 1852 s_priv = usb_get_serial_data(serial); 1853 p_priv = usb_get_serial_port_data(port); 1854 d_details = s_priv->device_details; 1855 device_port = port->number - port->serial->minor; 1856 1857 outcont_urb = d_details->outcont_endpoints[port->number]; 1858 this_urb = p_priv->outcont_urb; 1859 1860 dbg("%s - endpoint %d", __func__, usb_pipeendpoint(this_urb->pipe)); 1861 1862 /* Make sure we have an urb then send the message */ 1863 if (this_urb == NULL) { 1864 dbg("%s - oops no urb.", __func__); 1865 return -1; 1866 } 1867 1868 /* Save reset port val for resend. 1869 Don't overwrite resend for open/close condition. */ 1870 if ((reset_port + 1) > p_priv->resend_cont) 1871 p_priv->resend_cont = reset_port + 1; 1872 if (this_urb->status == -EINPROGRESS) { 1873 /* dbg("%s - already writing", __func__); */ 1874 mdelay(5); 1875 return -1; 1876 } 1877 1878 memset(&msg, 0, sizeof(struct keyspan_usa26_portControlMessage)); 1879 1880 /* Only set baud rate if it's changed */ 1881 if (p_priv->old_baud != p_priv->baud) { 1882 p_priv->old_baud = p_priv->baud; 1883 msg.setClocking = 0xff; 1884 if (d_details->calculate_baud_rate 1885 (p_priv->baud, d_details->baudclk, &msg.baudHi, 1886 &msg.baudLo, &msg.prescaler, device_port) == KEYSPAN_INVALID_BAUD_RATE) { 1887 dbg("%s - Invalid baud rate %d requested, using 9600.", 1888 __func__, p_priv->baud); 1889 msg.baudLo = 0; 1890 msg.baudHi = 125; /* Values for 9600 baud */ 1891 msg.prescaler = 10; 1892 } 1893 msg.setPrescaler = 0xff; 1894 } 1895 1896 msg.lcr = (p_priv->cflag & CSTOPB)? STOPBITS_678_2: STOPBITS_5678_1; 1897 switch (p_priv->cflag & CSIZE) { 1898 case CS5: 1899 msg.lcr |= USA_DATABITS_5; 1900 break; 1901 case CS6: 1902 msg.lcr |= USA_DATABITS_6; 1903 break; 1904 case CS7: 1905 msg.lcr |= USA_DATABITS_7; 1906 break; 1907 case CS8: 1908 msg.lcr |= USA_DATABITS_8; 1909 break; 1910 } 1911 if (p_priv->cflag & PARENB) { 1912 /* note USA_PARITY_NONE == 0 */ 1913 msg.lcr |= (p_priv->cflag & PARODD)? 1914 USA_PARITY_ODD : USA_PARITY_EVEN; 1915 } 1916 msg.setLcr = 0xff; 1917 1918 msg.ctsFlowControl = (p_priv->flow_control == flow_cts); 1919 msg.xonFlowControl = 0; 1920 msg.setFlowControl = 0xff; 1921 msg.forwardingLength = 16; 1922 msg.xonChar = 17; 1923 msg.xoffChar = 19; 1924 1925 /* Opening port */ 1926 if (reset_port == 1) { 1927 msg._txOn = 1; 1928 msg._txOff = 0; 1929 msg.txFlush = 0; 1930 msg.txBreak = 0; 1931 msg.rxOn = 1; 1932 msg.rxOff = 0; 1933 msg.rxFlush = 1; 1934 msg.rxForward = 0; 1935 msg.returnStatus = 0; 1936 msg.resetDataToggle = 0xff; 1937 } 1938 1939 /* Closing port */ 1940 else if (reset_port == 2) { 1941 msg._txOn = 0; 1942 msg._txOff = 1; 1943 msg.txFlush = 0; 1944 msg.txBreak = 0; 1945 msg.rxOn = 0; 1946 msg.rxOff = 1; 1947 msg.rxFlush = 1; 1948 msg.rxForward = 0; 1949 msg.returnStatus = 0; 1950 msg.resetDataToggle = 0; 1951 } 1952 1953 /* Sending intermediate configs */ 1954 else { 1955 msg._txOn = (!p_priv->break_on); 1956 msg._txOff = 0; 1957 msg.txFlush = 0; 1958 msg.txBreak = (p_priv->break_on); 1959 msg.rxOn = 0; 1960 msg.rxOff = 0; 1961 msg.rxFlush = 0; 1962 msg.rxForward = 0; 1963 msg.returnStatus = 0; 1964 msg.resetDataToggle = 0x0; 1965 } 1966 1967 /* Do handshaking outputs */ 1968 msg.setTxTriState_setRts = 0xff; 1969 msg.txTriState_rts = p_priv->rts_state; 1970 1971 msg.setHskoa_setDtr = 0xff; 1972 msg.hskoa_dtr = p_priv->dtr_state; 1973 1974 p_priv->resend_cont = 0; 1975 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg)); 1976 1977 /* send the data out the device on control endpoint */ 1978 this_urb->transfer_buffer_length = sizeof(msg); 1979 1980 this_urb->dev = serial->dev; 1981 err = usb_submit_urb(this_urb, GFP_ATOMIC); 1982 if (err != 0) 1983 dbg("%s - usb_submit_urb(setup) failed (%d)", __func__, err); 1984 #if 0 1985 else { 1986 dbg("%s - usb_submit_urb(%d) OK %d bytes (end %d)", __func__ 1987 outcont_urb, this_urb->transfer_buffer_length, 1988 usb_pipeendpoint(this_urb->pipe)); 1989 } 1990 #endif 1991 1992 return 0; 1993 } 1994 1995 static int keyspan_usa28_send_setup(struct usb_serial *serial, 1996 struct usb_serial_port *port, 1997 int reset_port) 1998 { 1999 struct keyspan_usa28_portControlMessage msg; 2000 struct keyspan_serial_private *s_priv; 2001 struct keyspan_port_private *p_priv; 2002 const struct keyspan_device_details *d_details; 2003 struct urb *this_urb; 2004 int device_port, err; 2005 2006 dbg("%s", __func__); 2007 2008 s_priv = usb_get_serial_data(serial); 2009 p_priv = usb_get_serial_port_data(port); 2010 d_details = s_priv->device_details; 2011 device_port = port->number - port->serial->minor; 2012 2013 /* only do something if we have a bulk out endpoint */ 2014 this_urb = p_priv->outcont_urb; 2015 if (this_urb == NULL) { 2016 dbg("%s - oops no urb.", __func__); 2017 return -1; 2018 } 2019 2020 /* Save reset port val for resend. 2021 Don't overwrite resend for open/close condition. */ 2022 if ((reset_port + 1) > p_priv->resend_cont) 2023 p_priv->resend_cont = reset_port + 1; 2024 if (this_urb->status == -EINPROGRESS) { 2025 dbg("%s already writing", __func__); 2026 mdelay(5); 2027 return -1; 2028 } 2029 2030 memset(&msg, 0, sizeof(struct keyspan_usa28_portControlMessage)); 2031 2032 msg.setBaudRate = 1; 2033 if (d_details->calculate_baud_rate(p_priv->baud, d_details->baudclk, 2034 &msg.baudHi, &msg.baudLo, NULL, device_port) == KEYSPAN_INVALID_BAUD_RATE) { 2035 dbg("%s - Invalid baud rate requested %d.", 2036 __func__, p_priv->baud); 2037 msg.baudLo = 0xff; 2038 msg.baudHi = 0xb2; /* Values for 9600 baud */ 2039 } 2040 2041 /* If parity is enabled, we must calculate it ourselves. */ 2042 msg.parity = 0; /* XXX for now */ 2043 2044 msg.ctsFlowControl = (p_priv->flow_control == flow_cts); 2045 msg.xonFlowControl = 0; 2046 2047 /* Do handshaking outputs, DTR is inverted relative to RTS */ 2048 msg.rts = p_priv->rts_state; 2049 msg.dtr = p_priv->dtr_state; 2050 2051 msg.forwardingLength = 16; 2052 msg.forwardMs = 10; 2053 msg.breakThreshold = 45; 2054 msg.xonChar = 17; 2055 msg.xoffChar = 19; 2056 2057 /*msg.returnStatus = 1; 2058 msg.resetDataToggle = 0xff;*/ 2059 /* Opening port */ 2060 if (reset_port == 1) { 2061 msg._txOn = 1; 2062 msg._txOff = 0; 2063 msg.txFlush = 0; 2064 msg.txForceXoff = 0; 2065 msg.txBreak = 0; 2066 msg.rxOn = 1; 2067 msg.rxOff = 0; 2068 msg.rxFlush = 1; 2069 msg.rxForward = 0; 2070 msg.returnStatus = 0; 2071 msg.resetDataToggle = 0xff; 2072 } 2073 /* Closing port */ 2074 else if (reset_port == 2) { 2075 msg._txOn = 0; 2076 msg._txOff = 1; 2077 msg.txFlush = 0; 2078 msg.txForceXoff = 0; 2079 msg.txBreak = 0; 2080 msg.rxOn = 0; 2081 msg.rxOff = 1; 2082 msg.rxFlush = 1; 2083 msg.rxForward = 0; 2084 msg.returnStatus = 0; 2085 msg.resetDataToggle = 0; 2086 } 2087 /* Sending intermediate configs */ 2088 else { 2089 msg._txOn = (!p_priv->break_on); 2090 msg._txOff = 0; 2091 msg.txFlush = 0; 2092 msg.txForceXoff = 0; 2093 msg.txBreak = (p_priv->break_on); 2094 msg.rxOn = 0; 2095 msg.rxOff = 0; 2096 msg.rxFlush = 0; 2097 msg.rxForward = 0; 2098 msg.returnStatus = 0; 2099 msg.resetDataToggle = 0x0; 2100 } 2101 2102 p_priv->resend_cont = 0; 2103 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg)); 2104 2105 /* send the data out the device on control endpoint */ 2106 this_urb->transfer_buffer_length = sizeof(msg); 2107 2108 this_urb->dev = serial->dev; 2109 err = usb_submit_urb(this_urb, GFP_ATOMIC); 2110 if (err != 0) 2111 dbg("%s - usb_submit_urb(setup) failed", __func__); 2112 #if 0 2113 else { 2114 dbg("%s - usb_submit_urb(setup) OK %d bytes", __func__, 2115 this_urb->transfer_buffer_length); 2116 } 2117 #endif 2118 2119 return 0; 2120 } 2121 2122 static int keyspan_usa49_send_setup(struct usb_serial *serial, 2123 struct usb_serial_port *port, 2124 int reset_port) 2125 { 2126 struct keyspan_usa49_portControlMessage msg; 2127 struct usb_ctrlrequest *dr = NULL; 2128 struct keyspan_serial_private *s_priv; 2129 struct keyspan_port_private *p_priv; 2130 const struct keyspan_device_details *d_details; 2131 struct urb *this_urb; 2132 int err, device_port; 2133 2134 dbg("%s", __func__); 2135 2136 s_priv = usb_get_serial_data(serial); 2137 p_priv = usb_get_serial_port_data(port); 2138 d_details = s_priv->device_details; 2139 2140 this_urb = s_priv->glocont_urb; 2141 2142 /* Work out which port within the device is being setup */ 2143 device_port = port->number - port->serial->minor; 2144 2145 dbg("%s - endpoint %d port %d (%d)", 2146 __func__, usb_pipeendpoint(this_urb->pipe), 2147 port->number, device_port); 2148 2149 /* Make sure we have an urb then send the message */ 2150 if (this_urb == NULL) { 2151 dbg("%s - oops no urb for port %d.", __func__, port->number); 2152 return -1; 2153 } 2154 2155 /* Save reset port val for resend. 2156 Don't overwrite resend for open/close condition. */ 2157 if ((reset_port + 1) > p_priv->resend_cont) 2158 p_priv->resend_cont = reset_port + 1; 2159 2160 if (this_urb->status == -EINPROGRESS) { 2161 /* dbg("%s - already writing", __func__); */ 2162 mdelay(5); 2163 return -1; 2164 } 2165 2166 memset(&msg, 0, sizeof(struct keyspan_usa49_portControlMessage)); 2167 2168 /*msg.portNumber = port->number;*/ 2169 msg.portNumber = device_port; 2170 2171 /* Only set baud rate if it's changed */ 2172 if (p_priv->old_baud != p_priv->baud) { 2173 p_priv->old_baud = p_priv->baud; 2174 msg.setClocking = 0xff; 2175 if (d_details->calculate_baud_rate 2176 (p_priv->baud, d_details->baudclk, &msg.baudHi, 2177 &msg.baudLo, &msg.prescaler, device_port) == KEYSPAN_INVALID_BAUD_RATE) { 2178 dbg("%s - Invalid baud rate %d requested, using 9600.", 2179 __func__, p_priv->baud); 2180 msg.baudLo = 0; 2181 msg.baudHi = 125; /* Values for 9600 baud */ 2182 msg.prescaler = 10; 2183 } 2184 /* msg.setPrescaler = 0xff; */ 2185 } 2186 2187 msg.lcr = (p_priv->cflag & CSTOPB)? STOPBITS_678_2: STOPBITS_5678_1; 2188 switch (p_priv->cflag & CSIZE) { 2189 case CS5: 2190 msg.lcr |= USA_DATABITS_5; 2191 break; 2192 case CS6: 2193 msg.lcr |= USA_DATABITS_6; 2194 break; 2195 case CS7: 2196 msg.lcr |= USA_DATABITS_7; 2197 break; 2198 case CS8: 2199 msg.lcr |= USA_DATABITS_8; 2200 break; 2201 } 2202 if (p_priv->cflag & PARENB) { 2203 /* note USA_PARITY_NONE == 0 */ 2204 msg.lcr |= (p_priv->cflag & PARODD)? 2205 USA_PARITY_ODD : USA_PARITY_EVEN; 2206 } 2207 msg.setLcr = 0xff; 2208 2209 msg.ctsFlowControl = (p_priv->flow_control == flow_cts); 2210 msg.xonFlowControl = 0; 2211 msg.setFlowControl = 0xff; 2212 2213 msg.forwardingLength = 16; 2214 msg.xonChar = 17; 2215 msg.xoffChar = 19; 2216 2217 /* Opening port */ 2218 if (reset_port == 1) { 2219 msg._txOn = 1; 2220 msg._txOff = 0; 2221 msg.txFlush = 0; 2222 msg.txBreak = 0; 2223 msg.rxOn = 1; 2224 msg.rxOff = 0; 2225 msg.rxFlush = 1; 2226 msg.rxForward = 0; 2227 msg.returnStatus = 0; 2228 msg.resetDataToggle = 0xff; 2229 msg.enablePort = 1; 2230 msg.disablePort = 0; 2231 } 2232 /* Closing port */ 2233 else if (reset_port == 2) { 2234 msg._txOn = 0; 2235 msg._txOff = 1; 2236 msg.txFlush = 0; 2237 msg.txBreak = 0; 2238 msg.rxOn = 0; 2239 msg.rxOff = 1; 2240 msg.rxFlush = 1; 2241 msg.rxForward = 0; 2242 msg.returnStatus = 0; 2243 msg.resetDataToggle = 0; 2244 msg.enablePort = 0; 2245 msg.disablePort = 1; 2246 } 2247 /* Sending intermediate configs */ 2248 else { 2249 msg._txOn = (!p_priv->break_on); 2250 msg._txOff = 0; 2251 msg.txFlush = 0; 2252 msg.txBreak = (p_priv->break_on); 2253 msg.rxOn = 0; 2254 msg.rxOff = 0; 2255 msg.rxFlush = 0; 2256 msg.rxForward = 0; 2257 msg.returnStatus = 0; 2258 msg.resetDataToggle = 0x0; 2259 msg.enablePort = 0; 2260 msg.disablePort = 0; 2261 } 2262 2263 /* Do handshaking outputs */ 2264 msg.setRts = 0xff; 2265 msg.rts = p_priv->rts_state; 2266 2267 msg.setDtr = 0xff; 2268 msg.dtr = p_priv->dtr_state; 2269 2270 p_priv->resend_cont = 0; 2271 2272 /* if the device is a 49wg, we send control message on usb 2273 control EP 0 */ 2274 2275 if (d_details->product_id == keyspan_usa49wg_product_id) { 2276 dr = (void *)(s_priv->ctrl_buf); 2277 dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_OUT; 2278 dr->bRequest = 0xB0; /* 49wg control message */; 2279 dr->wValue = 0; 2280 dr->wIndex = 0; 2281 dr->wLength = cpu_to_le16(sizeof(msg)); 2282 2283 memcpy(s_priv->glocont_buf, &msg, sizeof(msg)); 2284 2285 usb_fill_control_urb(this_urb, serial->dev, 2286 usb_sndctrlpipe(serial->dev, 0), 2287 (unsigned char *)dr, s_priv->glocont_buf, 2288 sizeof(msg), usa49_glocont_callback, serial); 2289 2290 } else { 2291 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg)); 2292 2293 /* send the data out the device on control endpoint */ 2294 this_urb->transfer_buffer_length = sizeof(msg); 2295 2296 this_urb->dev = serial->dev; 2297 } 2298 err = usb_submit_urb(this_urb, GFP_ATOMIC); 2299 if (err != 0) 2300 dbg("%s - usb_submit_urb(setup) failed (%d)", __func__, err); 2301 #if 0 2302 else { 2303 dbg("%s - usb_submit_urb(%d) OK %d bytes (end %d)", __func__, 2304 outcont_urb, this_urb->transfer_buffer_length, 2305 usb_pipeendpoint(this_urb->pipe)); 2306 } 2307 #endif 2308 2309 return 0; 2310 } 2311 2312 static int keyspan_usa90_send_setup(struct usb_serial *serial, 2313 struct usb_serial_port *port, 2314 int reset_port) 2315 { 2316 struct keyspan_usa90_portControlMessage msg; 2317 struct keyspan_serial_private *s_priv; 2318 struct keyspan_port_private *p_priv; 2319 const struct keyspan_device_details *d_details; 2320 struct urb *this_urb; 2321 int err; 2322 u8 prescaler; 2323 2324 dbg("%s", __func__); 2325 2326 s_priv = usb_get_serial_data(serial); 2327 p_priv = usb_get_serial_port_data(port); 2328 d_details = s_priv->device_details; 2329 2330 /* only do something if we have a bulk out endpoint */ 2331 this_urb = p_priv->outcont_urb; 2332 if (this_urb == NULL) { 2333 dbg("%s - oops no urb.", __func__); 2334 return -1; 2335 } 2336 2337 /* Save reset port val for resend. 2338 Don't overwrite resend for open/close condition. */ 2339 if ((reset_port + 1) > p_priv->resend_cont) 2340 p_priv->resend_cont = reset_port + 1; 2341 if (this_urb->status == -EINPROGRESS) { 2342 dbg("%s already writing", __func__); 2343 mdelay(5); 2344 return -1; 2345 } 2346 2347 memset(&msg, 0, sizeof(struct keyspan_usa90_portControlMessage)); 2348 2349 /* Only set baud rate if it's changed */ 2350 if (p_priv->old_baud != p_priv->baud) { 2351 p_priv->old_baud = p_priv->baud; 2352 msg.setClocking = 0x01; 2353 if (d_details->calculate_baud_rate 2354 (p_priv->baud, d_details->baudclk, &msg.baudHi, 2355 &msg.baudLo, &prescaler, 0) == KEYSPAN_INVALID_BAUD_RATE) { 2356 dbg("%s - Invalid baud rate %d requested, using 9600.", 2357 __func__, p_priv->baud); 2358 p_priv->baud = 9600; 2359 d_details->calculate_baud_rate(p_priv->baud, d_details->baudclk, 2360 &msg.baudHi, &msg.baudLo, &prescaler, 0); 2361 } 2362 msg.setRxMode = 1; 2363 msg.setTxMode = 1; 2364 } 2365 2366 /* modes must always be correctly specified */ 2367 if (p_priv->baud > 57600) { 2368 msg.rxMode = RXMODE_DMA; 2369 msg.txMode = TXMODE_DMA; 2370 } else { 2371 msg.rxMode = RXMODE_BYHAND; 2372 msg.txMode = TXMODE_BYHAND; 2373 } 2374 2375 msg.lcr = (p_priv->cflag & CSTOPB)? STOPBITS_678_2: STOPBITS_5678_1; 2376 switch (p_priv->cflag & CSIZE) { 2377 case CS5: 2378 msg.lcr |= USA_DATABITS_5; 2379 break; 2380 case CS6: 2381 msg.lcr |= USA_DATABITS_6; 2382 break; 2383 case CS7: 2384 msg.lcr |= USA_DATABITS_7; 2385 break; 2386 case CS8: 2387 msg.lcr |= USA_DATABITS_8; 2388 break; 2389 } 2390 if (p_priv->cflag & PARENB) { 2391 /* note USA_PARITY_NONE == 0 */ 2392 msg.lcr |= (p_priv->cflag & PARODD)? 2393 USA_PARITY_ODD : USA_PARITY_EVEN; 2394 } 2395 if (p_priv->old_cflag != p_priv->cflag) { 2396 p_priv->old_cflag = p_priv->cflag; 2397 msg.setLcr = 0x01; 2398 } 2399 2400 if (p_priv->flow_control == flow_cts) 2401 msg.txFlowControl = TXFLOW_CTS; 2402 msg.setTxFlowControl = 0x01; 2403 msg.setRxFlowControl = 0x01; 2404 2405 msg.rxForwardingLength = 16; 2406 msg.rxForwardingTimeout = 16; 2407 msg.txAckSetting = 0; 2408 msg.xonChar = 17; 2409 msg.xoffChar = 19; 2410 2411 /* Opening port */ 2412 if (reset_port == 1) { 2413 msg.portEnabled = 1; 2414 msg.rxFlush = 1; 2415 msg.txBreak = (p_priv->break_on); 2416 } 2417 /* Closing port */ 2418 else if (reset_port == 2) 2419 msg.portEnabled = 0; 2420 /* Sending intermediate configs */ 2421 else { 2422 if (port->port.count) 2423 msg.portEnabled = 1; 2424 msg.txBreak = (p_priv->break_on); 2425 } 2426 2427 /* Do handshaking outputs */ 2428 msg.setRts = 0x01; 2429 msg.rts = p_priv->rts_state; 2430 2431 msg.setDtr = 0x01; 2432 msg.dtr = p_priv->dtr_state; 2433 2434 p_priv->resend_cont = 0; 2435 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg)); 2436 2437 /* send the data out the device on control endpoint */ 2438 this_urb->transfer_buffer_length = sizeof(msg); 2439 2440 this_urb->dev = serial->dev; 2441 err = usb_submit_urb(this_urb, GFP_ATOMIC); 2442 if (err != 0) 2443 dbg("%s - usb_submit_urb(setup) failed (%d)", __func__, err); 2444 return 0; 2445 } 2446 2447 static int keyspan_usa67_send_setup(struct usb_serial *serial, 2448 struct usb_serial_port *port, 2449 int reset_port) 2450 { 2451 struct keyspan_usa67_portControlMessage msg; 2452 struct keyspan_serial_private *s_priv; 2453 struct keyspan_port_private *p_priv; 2454 const struct keyspan_device_details *d_details; 2455 struct urb *this_urb; 2456 int err, device_port; 2457 2458 dbg("%s", __func__); 2459 2460 s_priv = usb_get_serial_data(serial); 2461 p_priv = usb_get_serial_port_data(port); 2462 d_details = s_priv->device_details; 2463 2464 this_urb = s_priv->glocont_urb; 2465 2466 /* Work out which port within the device is being setup */ 2467 device_port = port->number - port->serial->minor; 2468 2469 /* Make sure we have an urb then send the message */ 2470 if (this_urb == NULL) { 2471 dbg("%s - oops no urb for port %d.", __func__, 2472 port->number); 2473 return -1; 2474 } 2475 2476 /* Save reset port val for resend. 2477 Don't overwrite resend for open/close condition. */ 2478 if ((reset_port + 1) > p_priv->resend_cont) 2479 p_priv->resend_cont = reset_port + 1; 2480 if (this_urb->status == -EINPROGRESS) { 2481 /* dbg("%s - already writing", __func__); */ 2482 mdelay(5); 2483 return -1; 2484 } 2485 2486 memset(&msg, 0, sizeof(struct keyspan_usa67_portControlMessage)); 2487 2488 msg.port = device_port; 2489 2490 /* Only set baud rate if it's changed */ 2491 if (p_priv->old_baud != p_priv->baud) { 2492 p_priv->old_baud = p_priv->baud; 2493 msg.setClocking = 0xff; 2494 if (d_details->calculate_baud_rate 2495 (p_priv->baud, d_details->baudclk, &msg.baudHi, 2496 &msg.baudLo, &msg.prescaler, device_port) == KEYSPAN_INVALID_BAUD_RATE) { 2497 dbg("%s - Invalid baud rate %d requested, using 9600.", 2498 __func__, p_priv->baud); 2499 msg.baudLo = 0; 2500 msg.baudHi = 125; /* Values for 9600 baud */ 2501 msg.prescaler = 10; 2502 } 2503 msg.setPrescaler = 0xff; 2504 } 2505 2506 msg.lcr = (p_priv->cflag & CSTOPB) ? STOPBITS_678_2 : STOPBITS_5678_1; 2507 switch (p_priv->cflag & CSIZE) { 2508 case CS5: 2509 msg.lcr |= USA_DATABITS_5; 2510 break; 2511 case CS6: 2512 msg.lcr |= USA_DATABITS_6; 2513 break; 2514 case CS7: 2515 msg.lcr |= USA_DATABITS_7; 2516 break; 2517 case CS8: 2518 msg.lcr |= USA_DATABITS_8; 2519 break; 2520 } 2521 if (p_priv->cflag & PARENB) { 2522 /* note USA_PARITY_NONE == 0 */ 2523 msg.lcr |= (p_priv->cflag & PARODD)? 2524 USA_PARITY_ODD : USA_PARITY_EVEN; 2525 } 2526 msg.setLcr = 0xff; 2527 2528 msg.ctsFlowControl = (p_priv->flow_control == flow_cts); 2529 msg.xonFlowControl = 0; 2530 msg.setFlowControl = 0xff; 2531 msg.forwardingLength = 16; 2532 msg.xonChar = 17; 2533 msg.xoffChar = 19; 2534 2535 if (reset_port == 1) { 2536 /* Opening port */ 2537 msg._txOn = 1; 2538 msg._txOff = 0; 2539 msg.txFlush = 0; 2540 msg.txBreak = 0; 2541 msg.rxOn = 1; 2542 msg.rxOff = 0; 2543 msg.rxFlush = 1; 2544 msg.rxForward = 0; 2545 msg.returnStatus = 0; 2546 msg.resetDataToggle = 0xff; 2547 } else if (reset_port == 2) { 2548 /* Closing port */ 2549 msg._txOn = 0; 2550 msg._txOff = 1; 2551 msg.txFlush = 0; 2552 msg.txBreak = 0; 2553 msg.rxOn = 0; 2554 msg.rxOff = 1; 2555 msg.rxFlush = 1; 2556 msg.rxForward = 0; 2557 msg.returnStatus = 0; 2558 msg.resetDataToggle = 0; 2559 } else { 2560 /* Sending intermediate configs */ 2561 msg._txOn = (!p_priv->break_on); 2562 msg._txOff = 0; 2563 msg.txFlush = 0; 2564 msg.txBreak = (p_priv->break_on); 2565 msg.rxOn = 0; 2566 msg.rxOff = 0; 2567 msg.rxFlush = 0; 2568 msg.rxForward = 0; 2569 msg.returnStatus = 0; 2570 msg.resetDataToggle = 0x0; 2571 } 2572 2573 /* Do handshaking outputs */ 2574 msg.setTxTriState_setRts = 0xff; 2575 msg.txTriState_rts = p_priv->rts_state; 2576 2577 msg.setHskoa_setDtr = 0xff; 2578 msg.hskoa_dtr = p_priv->dtr_state; 2579 2580 p_priv->resend_cont = 0; 2581 2582 memcpy(this_urb->transfer_buffer, &msg, sizeof(msg)); 2583 2584 /* send the data out the device on control endpoint */ 2585 this_urb->transfer_buffer_length = sizeof(msg); 2586 this_urb->dev = serial->dev; 2587 2588 err = usb_submit_urb(this_urb, GFP_ATOMIC); 2589 if (err != 0) 2590 dbg("%s - usb_submit_urb(setup) failed (%d)", __func__, 2591 err); 2592 return 0; 2593 } 2594 2595 static void keyspan_send_setup(struct usb_serial_port *port, int reset_port) 2596 { 2597 struct usb_serial *serial = port->serial; 2598 struct keyspan_serial_private *s_priv; 2599 const struct keyspan_device_details *d_details; 2600 2601 dbg("%s", __func__); 2602 2603 s_priv = usb_get_serial_data(serial); 2604 d_details = s_priv->device_details; 2605 2606 switch (d_details->msg_format) { 2607 case msg_usa26: 2608 keyspan_usa26_send_setup(serial, port, reset_port); 2609 break; 2610 case msg_usa28: 2611 keyspan_usa28_send_setup(serial, port, reset_port); 2612 break; 2613 case msg_usa49: 2614 keyspan_usa49_send_setup(serial, port, reset_port); 2615 break; 2616 case msg_usa90: 2617 keyspan_usa90_send_setup(serial, port, reset_port); 2618 break; 2619 case msg_usa67: 2620 keyspan_usa67_send_setup(serial, port, reset_port); 2621 break; 2622 } 2623 } 2624 2625 2626 /* Gets called by the "real" driver (ie once firmware is loaded 2627 and renumeration has taken place. */ 2628 static int keyspan_startup(struct usb_serial *serial) 2629 { 2630 int i, err; 2631 struct usb_serial_port *port; 2632 struct keyspan_serial_private *s_priv; 2633 struct keyspan_port_private *p_priv; 2634 const struct keyspan_device_details *d_details; 2635 2636 dbg("%s", __func__); 2637 2638 for (i = 0; (d_details = keyspan_devices[i]) != NULL; ++i) 2639 if (d_details->product_id == 2640 le16_to_cpu(serial->dev->descriptor.idProduct)) 2641 break; 2642 if (d_details == NULL) { 2643 dev_err(&serial->dev->dev, "%s - unknown product id %x\n", 2644 __func__, le16_to_cpu(serial->dev->descriptor.idProduct)); 2645 return 1; 2646 } 2647 2648 /* Setup private data for serial driver */ 2649 s_priv = kzalloc(sizeof(struct keyspan_serial_private), GFP_KERNEL); 2650 if (!s_priv) { 2651 dbg("%s - kmalloc for keyspan_serial_private failed.", 2652 __func__); 2653 return -ENOMEM; 2654 } 2655 2656 s_priv->device_details = d_details; 2657 usb_set_serial_data(serial, s_priv); 2658 2659 /* Now setup per port private data */ 2660 for (i = 0; i < serial->num_ports; i++) { 2661 port = serial->port[i]; 2662 p_priv = kzalloc(sizeof(struct keyspan_port_private), 2663 GFP_KERNEL); 2664 if (!p_priv) { 2665 dbg("%s - kmalloc for keyspan_port_private (%d) failed!.", __func__, i); 2666 return 1; 2667 } 2668 p_priv->device_details = d_details; 2669 usb_set_serial_port_data(port, p_priv); 2670 } 2671 2672 keyspan_setup_urbs(serial); 2673 2674 if (s_priv->instat_urb != NULL) { 2675 s_priv->instat_urb->dev = serial->dev; 2676 err = usb_submit_urb(s_priv->instat_urb, GFP_KERNEL); 2677 if (err != 0) 2678 dbg("%s - submit instat urb failed %d", __func__, 2679 err); 2680 } 2681 if (s_priv->indat_urb != NULL) { 2682 s_priv->indat_urb->dev = serial->dev; 2683 err = usb_submit_urb(s_priv->indat_urb, GFP_KERNEL); 2684 if (err != 0) 2685 dbg("%s - submit indat urb failed %d", __func__, 2686 err); 2687 } 2688 2689 return 0; 2690 } 2691 2692 static void keyspan_disconnect(struct usb_serial *serial) 2693 { 2694 int i, j; 2695 struct usb_serial_port *port; 2696 struct keyspan_serial_private *s_priv; 2697 struct keyspan_port_private *p_priv; 2698 2699 dbg("%s", __func__); 2700 2701 s_priv = usb_get_serial_data(serial); 2702 2703 /* Stop reading/writing urbs */ 2704 stop_urb(s_priv->instat_urb); 2705 stop_urb(s_priv->glocont_urb); 2706 stop_urb(s_priv->indat_urb); 2707 for (i = 0; i < serial->num_ports; ++i) { 2708 port = serial->port[i]; 2709 p_priv = usb_get_serial_port_data(port); 2710 stop_urb(p_priv->inack_urb); 2711 stop_urb(p_priv->outcont_urb); 2712 for (j = 0; j < 2; j++) { 2713 stop_urb(p_priv->in_urbs[j]); 2714 stop_urb(p_priv->out_urbs[j]); 2715 } 2716 } 2717 2718 /* Now free them */ 2719 usb_free_urb(s_priv->instat_urb); 2720 usb_free_urb(s_priv->indat_urb); 2721 usb_free_urb(s_priv->glocont_urb); 2722 for (i = 0; i < serial->num_ports; ++i) { 2723 port = serial->port[i]; 2724 p_priv = usb_get_serial_port_data(port); 2725 usb_free_urb(p_priv->inack_urb); 2726 usb_free_urb(p_priv->outcont_urb); 2727 for (j = 0; j < 2; j++) { 2728 usb_free_urb(p_priv->in_urbs[j]); 2729 usb_free_urb(p_priv->out_urbs[j]); 2730 } 2731 } 2732 } 2733 2734 static void keyspan_release(struct usb_serial *serial) 2735 { 2736 int i; 2737 struct usb_serial_port *port; 2738 struct keyspan_serial_private *s_priv; 2739 2740 dbg("%s", __func__); 2741 2742 s_priv = usb_get_serial_data(serial); 2743 2744 /* dbg("Freeing serial->private."); */ 2745 kfree(s_priv); 2746 2747 /* dbg("Freeing port->private."); */ 2748 /* Now free per port private data */ 2749 for (i = 0; i < serial->num_ports; i++) { 2750 port = serial->port[i]; 2751 kfree(usb_get_serial_port_data(port)); 2752 } 2753 } 2754 2755 MODULE_AUTHOR(DRIVER_AUTHOR); 2756 MODULE_DESCRIPTION(DRIVER_DESC); 2757 MODULE_LICENSE("GPL"); 2758 2759 MODULE_FIRMWARE("keyspan/usa28.fw"); 2760 MODULE_FIRMWARE("keyspan/usa28x.fw"); 2761 MODULE_FIRMWARE("keyspan/usa28xa.fw"); 2762 MODULE_FIRMWARE("keyspan/usa28xb.fw"); 2763 MODULE_FIRMWARE("keyspan/usa19.fw"); 2764 MODULE_FIRMWARE("keyspan/usa19qi.fw"); 2765 MODULE_FIRMWARE("keyspan/mpr.fw"); 2766 MODULE_FIRMWARE("keyspan/usa19qw.fw"); 2767 MODULE_FIRMWARE("keyspan/usa18x.fw"); 2768 MODULE_FIRMWARE("keyspan/usa19w.fw"); 2769 MODULE_FIRMWARE("keyspan/usa49w.fw"); 2770 MODULE_FIRMWARE("keyspan/usa49wlc.fw"); 2771 2772 module_param(debug, bool, S_IRUGO | S_IWUSR); 2773 MODULE_PARM_DESC(debug, "Debug enabled or not"); 2774 2775