1// SPDX-License-Identifier: GPL-2.0+ 2/* 3 * USB Keyspan PDA / Xircom / Entrega Converter driver 4 * 5 * Copyright (C) 1999 - 2001 Greg Kroah-Hartman <greg@kroah.com> 6 * Copyright (C) 1999, 2000 Brian Warner <warner@lothar.com> 7 * Copyright (C) 2000 Al Borchers <borchers@steinerpoint.com> 8 * 9 * See Documentation/usb/usb-serial.rst for more information on using this 10 * driver 11 */ 12 13 14#include <linux/kernel.h> 15#include <linux/errno.h> 16#include <linux/slab.h> 17#include <linux/tty.h> 18#include <linux/tty_driver.h> 19#include <linux/tty_flip.h> 20#include <linux/module.h> 21#include <linux/spinlock.h> 22#include <linux/workqueue.h> 23#include <linux/uaccess.h> 24#include <linux/usb.h> 25#include <linux/usb/serial.h> 26#include <linux/usb/ezusb.h> 27 28/* make a simple define to handle if we are compiling keyspan_pda or xircom support */ 29#if IS_ENABLED(CONFIG_USB_SERIAL_KEYSPAN_PDA) 30 #define KEYSPAN 31#else 32 #undef KEYSPAN 33#endif 34#if IS_ENABLED(CONFIG_USB_SERIAL_XIRCOM) 35 #define XIRCOM 36#else 37 #undef XIRCOM 38#endif 39 40#define DRIVER_AUTHOR "Brian Warner <warner@lothar.com>" 41#define DRIVER_DESC "USB Keyspan PDA Converter driver" 42 43#define KEYSPAN_TX_THRESHOLD 16 44 45struct keyspan_pda_private { 46 int tx_room; 47 int tx_throttled; 48 struct work_struct unthrottle_work; 49 struct usb_serial *serial; 50 struct usb_serial_port *port; 51}; 52 53 54#define KEYSPAN_VENDOR_ID 0x06cd 55#define KEYSPAN_PDA_FAKE_ID 0x0103 56#define KEYSPAN_PDA_ID 0x0104 /* no clue */ 57 58/* For Xircom PGSDB9 and older Entrega version of the same device */ 59#define XIRCOM_VENDOR_ID 0x085a 60#define XIRCOM_FAKE_ID 0x8027 61#define XIRCOM_FAKE_ID_2 0x8025 /* "PGMFHUB" serial */ 62#define ENTREGA_VENDOR_ID 0x1645 63#define ENTREGA_FAKE_ID 0x8093 64 65static const struct usb_device_id id_table_combined[] = { 66#ifdef KEYSPAN 67 { USB_DEVICE(KEYSPAN_VENDOR_ID, KEYSPAN_PDA_FAKE_ID) }, 68#endif 69#ifdef XIRCOM 70 { USB_DEVICE(XIRCOM_VENDOR_ID, XIRCOM_FAKE_ID) }, 71 { USB_DEVICE(XIRCOM_VENDOR_ID, XIRCOM_FAKE_ID_2) }, 72 { USB_DEVICE(ENTREGA_VENDOR_ID, ENTREGA_FAKE_ID) }, 73#endif 74 { USB_DEVICE(KEYSPAN_VENDOR_ID, KEYSPAN_PDA_ID) }, 75 { } /* Terminating entry */ 76}; 77 78MODULE_DEVICE_TABLE(usb, id_table_combined); 79 80static const struct usb_device_id id_table_std[] = { 81 { USB_DEVICE(KEYSPAN_VENDOR_ID, KEYSPAN_PDA_ID) }, 82 { } /* Terminating entry */ 83}; 84 85#ifdef KEYSPAN 86static const struct usb_device_id id_table_fake[] = { 87 { USB_DEVICE(KEYSPAN_VENDOR_ID, KEYSPAN_PDA_FAKE_ID) }, 88 { } /* Terminating entry */ 89}; 90#endif 91 92#ifdef XIRCOM 93static const struct usb_device_id id_table_fake_xircom[] = { 94 { USB_DEVICE(XIRCOM_VENDOR_ID, XIRCOM_FAKE_ID) }, 95 { USB_DEVICE(XIRCOM_VENDOR_ID, XIRCOM_FAKE_ID_2) }, 96 { USB_DEVICE(ENTREGA_VENDOR_ID, ENTREGA_FAKE_ID) }, 97 { } 98}; 99#endif 100 101static void keyspan_pda_request_unthrottle(struct work_struct *work) 102{ 103 struct keyspan_pda_private *priv = 104 container_of(work, struct keyspan_pda_private, unthrottle_work); 105 struct usb_serial *serial = priv->serial; 106 int result; 107 108 /* ask the device to tell us when the tx buffer becomes 109 sufficiently empty */ 110 result = usb_control_msg(serial->dev, 111 usb_sndctrlpipe(serial->dev, 0), 112 7, /* request_unthrottle */ 113 USB_TYPE_VENDOR | USB_RECIP_INTERFACE 114 | USB_DIR_OUT, 115 KEYSPAN_TX_THRESHOLD, 116 0, /* index */ 117 NULL, 118 0, 119 2000); 120 if (result < 0) 121 dev_dbg(&serial->dev->dev, "%s - error %d from usb_control_msg\n", 122 __func__, result); 123} 124 125 126static void keyspan_pda_rx_interrupt(struct urb *urb) 127{ 128 struct usb_serial_port *port = urb->context; 129 unsigned char *data = urb->transfer_buffer; 130 unsigned int len = urb->actual_length; 131 int retval; 132 int status = urb->status; 133 struct keyspan_pda_private *priv; 134 unsigned long flags; 135 136 priv = usb_get_serial_port_data(port); 137 138 switch (status) { 139 case 0: 140 /* success */ 141 break; 142 case -ECONNRESET: 143 case -ENOENT: 144 case -ESHUTDOWN: 145 /* this urb is terminated, clean up */ 146 dev_dbg(&urb->dev->dev, "%s - urb shutting down with status: %d\n", __func__, status); 147 return; 148 default: 149 dev_dbg(&urb->dev->dev, "%s - nonzero urb status received: %d\n", __func__, status); 150 goto exit; 151 } 152 153 if (len < 1) { 154 dev_warn(&port->dev, "short message received\n"); 155 goto exit; 156 } 157 158 /* see if the message is data or a status interrupt */ 159 switch (data[0]) { 160 case 0: 161 /* rest of message is rx data */ 162 if (len < 2) 163 break; 164 tty_insert_flip_string(&port->port, data + 1, len - 1); 165 tty_flip_buffer_push(&port->port); 166 break; 167 case 1: 168 /* status interrupt */ 169 if (len < 2) { 170 dev_warn(&port->dev, "short interrupt message received\n"); 171 break; 172 } 173 dev_dbg(&port->dev, "rx int, d1=%d\n", data[1]); 174 switch (data[1]) { 175 case 1: /* modemline change */ 176 break; 177 case 2: /* tx unthrottle interrupt */ 178 spin_lock_irqsave(&port->lock, flags); 179 priv->tx_throttled = 0; 180 priv->tx_room = max(priv->tx_room, KEYSPAN_TX_THRESHOLD); 181 spin_unlock_irqrestore(&port->lock, flags); 182 /* queue up a wakeup at scheduler time */ 183 usb_serial_port_softint(port); 184 break; 185 default: 186 break; 187 } 188 break; 189 default: 190 break; 191 } 192 193exit: 194 retval = usb_submit_urb(urb, GFP_ATOMIC); 195 if (retval) 196 dev_err(&port->dev, 197 "%s - usb_submit_urb failed with result %d\n", 198 __func__, retval); 199} 200 201 202static void keyspan_pda_rx_throttle(struct tty_struct *tty) 203{ 204 /* stop receiving characters. We just turn off the URB request, and 205 let chars pile up in the device. If we're doing hardware 206 flowcontrol, the device will signal the other end when its buffer 207 fills up. If we're doing XON/XOFF, this would be a good time to 208 send an XOFF, although it might make sense to foist that off 209 upon the device too. */ 210 struct usb_serial_port *port = tty->driver_data; 211 212 usb_kill_urb(port->interrupt_in_urb); 213} 214 215 216static void keyspan_pda_rx_unthrottle(struct tty_struct *tty) 217{ 218 struct usb_serial_port *port = tty->driver_data; 219 /* just restart the receive interrupt URB */ 220 221 if (usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL)) 222 dev_dbg(&port->dev, "usb_submit_urb(read urb) failed\n"); 223} 224 225 226static speed_t keyspan_pda_setbaud(struct usb_serial *serial, speed_t baud) 227{ 228 int rc; 229 int bindex; 230 231 switch (baud) { 232 case 110: 233 bindex = 0; 234 break; 235 case 300: 236 bindex = 1; 237 break; 238 case 1200: 239 bindex = 2; 240 break; 241 case 2400: 242 bindex = 3; 243 break; 244 case 4800: 245 bindex = 4; 246 break; 247 case 9600: 248 bindex = 5; 249 break; 250 case 19200: 251 bindex = 6; 252 break; 253 case 38400: 254 bindex = 7; 255 break; 256 case 57600: 257 bindex = 8; 258 break; 259 case 115200: 260 bindex = 9; 261 break; 262 default: 263 bindex = 5; /* Default to 9600 */ 264 baud = 9600; 265 } 266 267 /* rather than figure out how to sleep while waiting for this 268 to complete, I just use the "legacy" API. */ 269 rc = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), 270 0, /* set baud */ 271 USB_TYPE_VENDOR 272 | USB_RECIP_INTERFACE 273 | USB_DIR_OUT, /* type */ 274 bindex, /* value */ 275 0, /* index */ 276 NULL, /* &data */ 277 0, /* size */ 278 2000); /* timeout */ 279 if (rc < 0) 280 return 0; 281 return baud; 282} 283 284 285static void keyspan_pda_break_ctl(struct tty_struct *tty, int break_state) 286{ 287 struct usb_serial_port *port = tty->driver_data; 288 struct usb_serial *serial = port->serial; 289 int value; 290 int result; 291 292 if (break_state == -1) 293 value = 1; /* start break */ 294 else 295 value = 0; /* clear break */ 296 result = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), 297 4, /* set break */ 298 USB_TYPE_VENDOR | USB_RECIP_INTERFACE | USB_DIR_OUT, 299 value, 0, NULL, 0, 2000); 300 if (result < 0) 301 dev_dbg(&port->dev, "%s - error %d from usb_control_msg\n", 302 __func__, result); 303 /* there is something funky about this.. the TCSBRK that 'cu' performs 304 ought to translate into a break_ctl(-1),break_ctl(0) pair HZ/4 305 seconds apart, but it feels like the break sent isn't as long as it 306 is on /dev/ttyS0 */ 307} 308 309 310static void keyspan_pda_set_termios(struct tty_struct *tty, 311 struct usb_serial_port *port, struct ktermios *old_termios) 312{ 313 struct usb_serial *serial = port->serial; 314 speed_t speed; 315 316 /* cflag specifies lots of stuff: number of stop bits, parity, number 317 of data bits, baud. What can the device actually handle?: 318 CSTOPB (1 stop bit or 2) 319 PARENB (parity) 320 CSIZE (5bit .. 8bit) 321 There is minimal hw support for parity (a PSW bit seems to hold the 322 parity of whatever is in the accumulator). The UART either deals 323 with 10 bits (start, 8 data, stop) or 11 bits (start, 8 data, 324 1 special, stop). So, with firmware changes, we could do: 325 8N1: 10 bit 326 8N2: 11 bit, extra bit always (mark?) 327 8[EOMS]1: 11 bit, extra bit is parity 328 7[EOMS]1: 10 bit, b0/b7 is parity 329 7[EOMS]2: 11 bit, b0/b7 is parity, extra bit always (mark?) 330 331 HW flow control is dictated by the tty->termios.c_cflags & CRTSCTS 332 bit. 333 334 For now, just do baud. */ 335 336 speed = tty_get_baud_rate(tty); 337 speed = keyspan_pda_setbaud(serial, speed); 338 339 if (speed == 0) { 340 dev_dbg(&port->dev, "can't handle requested baud rate\n"); 341 /* It hasn't changed so.. */ 342 speed = tty_termios_baud_rate(old_termios); 343 } 344 /* Only speed can change so copy the old h/w parameters 345 then encode the new speed */ 346 tty_termios_copy_hw(&tty->termios, old_termios); 347 tty_encode_baud_rate(tty, speed, speed); 348} 349 350 351/* modem control pins: DTR and RTS are outputs and can be controlled. 352 DCD, RI, DSR, CTS are inputs and can be read. All outputs can also be 353 read. The byte passed is: DTR(b7) DCD RI DSR CTS RTS(b2) unused unused */ 354 355static int keyspan_pda_get_modem_info(struct usb_serial *serial, 356 unsigned char *value) 357{ 358 int rc; 359 u8 *data; 360 361 data = kmalloc(1, GFP_KERNEL); 362 if (!data) 363 return -ENOMEM; 364 365 rc = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), 366 3, /* get pins */ 367 USB_TYPE_VENDOR|USB_RECIP_INTERFACE|USB_DIR_IN, 368 0, 0, data, 1, 2000); 369 if (rc == 1) 370 *value = *data; 371 else if (rc >= 0) 372 rc = -EIO; 373 374 kfree(data); 375 return rc; 376} 377 378 379static int keyspan_pda_set_modem_info(struct usb_serial *serial, 380 unsigned char value) 381{ 382 int rc; 383 rc = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), 384 3, /* set pins */ 385 USB_TYPE_VENDOR|USB_RECIP_INTERFACE|USB_DIR_OUT, 386 value, 0, NULL, 0, 2000); 387 return rc; 388} 389 390static int keyspan_pda_tiocmget(struct tty_struct *tty) 391{ 392 struct usb_serial_port *port = tty->driver_data; 393 struct usb_serial *serial = port->serial; 394 int rc; 395 unsigned char status; 396 int value; 397 398 rc = keyspan_pda_get_modem_info(serial, &status); 399 if (rc < 0) 400 return rc; 401 value = 402 ((status & (1<<7)) ? TIOCM_DTR : 0) | 403 ((status & (1<<6)) ? TIOCM_CAR : 0) | 404 ((status & (1<<5)) ? TIOCM_RNG : 0) | 405 ((status & (1<<4)) ? TIOCM_DSR : 0) | 406 ((status & (1<<3)) ? TIOCM_CTS : 0) | 407 ((status & (1<<2)) ? TIOCM_RTS : 0); 408 return value; 409} 410 411static int keyspan_pda_tiocmset(struct tty_struct *tty, 412 unsigned int set, unsigned int clear) 413{ 414 struct usb_serial_port *port = tty->driver_data; 415 struct usb_serial *serial = port->serial; 416 int rc; 417 unsigned char status; 418 419 rc = keyspan_pda_get_modem_info(serial, &status); 420 if (rc < 0) 421 return rc; 422 423 if (set & TIOCM_RTS) 424 status |= (1<<2); 425 if (set & TIOCM_DTR) 426 status |= (1<<7); 427 428 if (clear & TIOCM_RTS) 429 status &= ~(1<<2); 430 if (clear & TIOCM_DTR) 431 status &= ~(1<<7); 432 rc = keyspan_pda_set_modem_info(serial, status); 433 return rc; 434} 435 436static int keyspan_pda_write(struct tty_struct *tty, 437 struct usb_serial_port *port, const unsigned char *buf, int count) 438{ 439 struct usb_serial *serial = port->serial; 440 int request_unthrottle = 0; 441 int rc = 0; 442 struct keyspan_pda_private *priv; 443 unsigned long flags; 444 445 priv = usb_get_serial_port_data(port); 446 /* guess how much room is left in the device's ring buffer, and if we 447 want to send more than that, check first, updating our notion of 448 what is left. If our write will result in no room left, ask the 449 device to give us an interrupt when the room available rises above 450 a threshold, and hold off all writers (eventually, those using 451 select() or poll() too) until we receive that unthrottle interrupt. 452 Block if we can't write anything at all, otherwise write as much as 453 we can. */ 454 if (count == 0) { 455 dev_dbg(&port->dev, "write request of 0 bytes\n"); 456 return 0; 457 } 458 459 /* we might block because of: 460 the TX urb is in-flight (wait until it completes) 461 the device is full (wait until it says there is room) 462 */ 463 spin_lock_irqsave(&port->lock, flags); 464 if (!test_bit(0, &port->write_urbs_free) || priv->tx_throttled) { 465 spin_unlock_irqrestore(&port->lock, flags); 466 return 0; 467 } 468 clear_bit(0, &port->write_urbs_free); 469 spin_unlock_irqrestore(&port->lock, flags); 470 471 /* At this point the URB is in our control, nobody else can submit it 472 again (the only sudden transition was the one from EINPROGRESS to 473 finished). Also, the tx process is not throttled. So we are 474 ready to write. */ 475 476 count = (count > port->bulk_out_size) ? port->bulk_out_size : count; 477 478 /* Check if we might overrun the Tx buffer. If so, ask the 479 device how much room it really has. This is done only on 480 scheduler time, since usb_control_msg() sleeps. */ 481 if (count > priv->tx_room && !in_interrupt()) { 482 u8 *room; 483 484 room = kmalloc(1, GFP_KERNEL); 485 if (!room) { 486 rc = -ENOMEM; 487 goto exit; 488 } 489 490 rc = usb_control_msg(serial->dev, 491 usb_rcvctrlpipe(serial->dev, 0), 492 6, /* write_room */ 493 USB_TYPE_VENDOR | USB_RECIP_INTERFACE 494 | USB_DIR_IN, 495 0, /* value: 0 means "remaining room" */ 496 0, /* index */ 497 room, 498 1, 499 2000); 500 if (rc > 0) { 501 dev_dbg(&port->dev, "roomquery says %d\n", *room); 502 priv->tx_room = *room; 503 } 504 kfree(room); 505 if (rc < 0) { 506 dev_dbg(&port->dev, "roomquery failed\n"); 507 goto exit; 508 } 509 if (rc == 0) { 510 dev_dbg(&port->dev, "roomquery returned 0 bytes\n"); 511 rc = -EIO; /* device didn't return any data */ 512 goto exit; 513 } 514 } 515 516 if (count >= priv->tx_room) { 517 /* we're about to completely fill the Tx buffer, so 518 we'll be throttled afterwards. */ 519 count = priv->tx_room; 520 request_unthrottle = 1; 521 } 522 523 if (count) { 524 /* now transfer data */ 525 memcpy(port->write_urb->transfer_buffer, buf, count); 526 /* send the data out the bulk port */ 527 port->write_urb->transfer_buffer_length = count; 528 529 priv->tx_room -= count; 530 531 rc = usb_submit_urb(port->write_urb, GFP_ATOMIC); 532 if (rc) { 533 dev_dbg(&port->dev, "usb_submit_urb(write bulk) failed\n"); 534 goto exit; 535 } 536 } else { 537 /* There wasn't any room left, so we are throttled until 538 the buffer empties a bit */ 539 request_unthrottle = 1; 540 } 541 542 if (request_unthrottle) { 543 priv->tx_throttled = 1; /* block writers */ 544 schedule_work(&priv->unthrottle_work); 545 } 546 547 rc = count; 548exit: 549 if (rc <= 0) 550 set_bit(0, &port->write_urbs_free); 551 return rc; 552} 553 554 555static void keyspan_pda_write_bulk_callback(struct urb *urb) 556{ 557 struct usb_serial_port *port = urb->context; 558 559 set_bit(0, &port->write_urbs_free); 560 561 /* queue up a wakeup at scheduler time */ 562 usb_serial_port_softint(port); 563} 564 565 566static int keyspan_pda_write_room(struct tty_struct *tty) 567{ 568 struct usb_serial_port *port = tty->driver_data; 569 struct keyspan_pda_private *priv = usb_get_serial_port_data(port); 570 unsigned long flags; 571 int room = 0; 572 573 spin_lock_irqsave(&port->lock, flags); 574 if (test_bit(0, &port->write_urbs_free) && !priv->tx_throttled) 575 room = priv->tx_room; 576 spin_unlock_irqrestore(&port->lock, flags); 577 578 return room; 579} 580 581static int keyspan_pda_chars_in_buffer(struct tty_struct *tty) 582{ 583 struct usb_serial_port *port = tty->driver_data; 584 struct keyspan_pda_private *priv; 585 unsigned long flags; 586 int ret = 0; 587 588 priv = usb_get_serial_port_data(port); 589 590 /* when throttled, return at least WAKEUP_CHARS to tell select() (via 591 n_tty.c:normal_poll() ) that we're not writeable. */ 592 593 spin_lock_irqsave(&port->lock, flags); 594 if (!test_bit(0, &port->write_urbs_free) || priv->tx_throttled) 595 ret = 256; 596 spin_unlock_irqrestore(&port->lock, flags); 597 return ret; 598} 599 600 601static void keyspan_pda_dtr_rts(struct usb_serial_port *port, int on) 602{ 603 struct usb_serial *serial = port->serial; 604 605 if (on) 606 keyspan_pda_set_modem_info(serial, (1 << 7) | (1 << 2)); 607 else 608 keyspan_pda_set_modem_info(serial, 0); 609} 610 611 612static int keyspan_pda_open(struct tty_struct *tty, 613 struct usb_serial_port *port) 614{ 615 struct usb_serial *serial = port->serial; 616 u8 *room; 617 int rc = 0; 618 struct keyspan_pda_private *priv; 619 620 /* find out how much room is in the Tx ring */ 621 room = kmalloc(1, GFP_KERNEL); 622 if (!room) 623 return -ENOMEM; 624 625 rc = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), 626 6, /* write_room */ 627 USB_TYPE_VENDOR | USB_RECIP_INTERFACE 628 | USB_DIR_IN, 629 0, /* value */ 630 0, /* index */ 631 room, 632 1, 633 2000); 634 if (rc < 0) { 635 dev_dbg(&port->dev, "%s - roomquery failed\n", __func__); 636 goto error; 637 } 638 if (rc == 0) { 639 dev_dbg(&port->dev, "%s - roomquery returned 0 bytes\n", __func__); 640 rc = -EIO; 641 goto error; 642 } 643 priv = usb_get_serial_port_data(port); 644 priv->tx_room = *room; 645 priv->tx_throttled = *room ? 0 : 1; 646 647 /*Start reading from the device*/ 648 rc = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); 649 if (rc) { 650 dev_dbg(&port->dev, "%s - usb_submit_urb(read int) failed\n", __func__); 651 goto error; 652 } 653error: 654 kfree(room); 655 return rc; 656} 657static void keyspan_pda_close(struct usb_serial_port *port) 658{ 659 struct keyspan_pda_private *priv = usb_get_serial_port_data(port); 660 661 usb_kill_urb(port->write_urb); 662 usb_kill_urb(port->interrupt_in_urb); 663 664 cancel_work_sync(&priv->unthrottle_work); 665} 666 667 668/* download the firmware to a "fake" device (pre-renumeration) */ 669static int keyspan_pda_fake_startup(struct usb_serial *serial) 670{ 671 const char *fw_name; 672 673 /* download the firmware here ... */ 674 ezusb_fx1_set_reset(serial->dev, 1); 675 676 if (0) { ; } 677#ifdef KEYSPAN 678 else if (le16_to_cpu(serial->dev->descriptor.idVendor) == KEYSPAN_VENDOR_ID) 679 fw_name = "keyspan_pda/keyspan_pda.fw"; 680#endif 681#ifdef XIRCOM 682 else if ((le16_to_cpu(serial->dev->descriptor.idVendor) == XIRCOM_VENDOR_ID) || 683 (le16_to_cpu(serial->dev->descriptor.idVendor) == ENTREGA_VENDOR_ID)) 684 fw_name = "keyspan_pda/xircom_pgs.fw"; 685#endif 686 else { 687 dev_err(&serial->dev->dev, "%s: unknown vendor, aborting.\n", 688 __func__); 689 return -ENODEV; 690 } 691 692 if (ezusb_fx1_ihex_firmware_download(serial->dev, fw_name) < 0) { 693 dev_err(&serial->dev->dev, "failed to load firmware \"%s\"\n", 694 fw_name); 695 return -ENOENT; 696 } 697 698 /* after downloading firmware Renumeration will occur in a 699 moment and the new device will bind to the real driver */ 700 701 /* we want this device to fail to have a driver assigned to it. */ 702 return 1; 703} 704 705#ifdef KEYSPAN 706MODULE_FIRMWARE("keyspan_pda/keyspan_pda.fw"); 707#endif 708#ifdef XIRCOM 709MODULE_FIRMWARE("keyspan_pda/xircom_pgs.fw"); 710#endif 711 712static int keyspan_pda_port_probe(struct usb_serial_port *port) 713{ 714 715 struct keyspan_pda_private *priv; 716 717 priv = kmalloc(sizeof(struct keyspan_pda_private), GFP_KERNEL); 718 if (!priv) 719 return -ENOMEM; 720 721 INIT_WORK(&priv->unthrottle_work, keyspan_pda_request_unthrottle); 722 priv->serial = port->serial; 723 priv->port = port; 724 725 usb_set_serial_port_data(port, priv); 726 727 return 0; 728} 729 730static int keyspan_pda_port_remove(struct usb_serial_port *port) 731{ 732 struct keyspan_pda_private *priv; 733 734 priv = usb_get_serial_port_data(port); 735 kfree(priv); 736 737 return 0; 738} 739 740#ifdef KEYSPAN 741static struct usb_serial_driver keyspan_pda_fake_device = { 742 .driver = { 743 .owner = THIS_MODULE, 744 .name = "keyspan_pda_pre", 745 }, 746 .description = "Keyspan PDA - (prerenumeration)", 747 .id_table = id_table_fake, 748 .num_ports = 1, 749 .attach = keyspan_pda_fake_startup, 750}; 751#endif 752 753#ifdef XIRCOM 754static struct usb_serial_driver xircom_pgs_fake_device = { 755 .driver = { 756 .owner = THIS_MODULE, 757 .name = "xircom_no_firm", 758 }, 759 .description = "Xircom / Entrega PGS - (prerenumeration)", 760 .id_table = id_table_fake_xircom, 761 .num_ports = 1, 762 .attach = keyspan_pda_fake_startup, 763}; 764#endif 765 766static struct usb_serial_driver keyspan_pda_device = { 767 .driver = { 768 .owner = THIS_MODULE, 769 .name = "keyspan_pda", 770 }, 771 .description = "Keyspan PDA", 772 .id_table = id_table_std, 773 .num_ports = 1, 774 .num_bulk_out = 1, 775 .num_interrupt_in = 1, 776 .dtr_rts = keyspan_pda_dtr_rts, 777 .open = keyspan_pda_open, 778 .close = keyspan_pda_close, 779 .write = keyspan_pda_write, 780 .write_room = keyspan_pda_write_room, 781 .write_bulk_callback = keyspan_pda_write_bulk_callback, 782 .read_int_callback = keyspan_pda_rx_interrupt, 783 .chars_in_buffer = keyspan_pda_chars_in_buffer, 784 .throttle = keyspan_pda_rx_throttle, 785 .unthrottle = keyspan_pda_rx_unthrottle, 786 .set_termios = keyspan_pda_set_termios, 787 .break_ctl = keyspan_pda_break_ctl, 788 .tiocmget = keyspan_pda_tiocmget, 789 .tiocmset = keyspan_pda_tiocmset, 790 .port_probe = keyspan_pda_port_probe, 791 .port_remove = keyspan_pda_port_remove, 792}; 793 794static struct usb_serial_driver * const serial_drivers[] = { 795 &keyspan_pda_device, 796#ifdef KEYSPAN 797 &keyspan_pda_fake_device, 798#endif 799#ifdef XIRCOM 800 &xircom_pgs_fake_device, 801#endif 802 NULL 803}; 804 805module_usb_serial_driver(serial_drivers, id_table_combined); 806 807MODULE_AUTHOR(DRIVER_AUTHOR); 808MODULE_DESCRIPTION(DRIVER_DESC); 809MODULE_LICENSE("GPL"); 810