2 * USB Keyspan PDA / Xircom / Entregra Converter driver
4 * Copyright (C) 1999 - 2001 Greg Kroah-Hartman <greg@kroah.com>
5 * Copyright (C) 1999, 2000 Brian Warner <warner@lothar.com>
6 * Copyright (C) 2000 Al Borchers <borchers@steinerpoint.com>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * See Documentation/usb/usb-serial.txt for more information on using this driver
16 * cleaned up the Xircom support. Added ids for Entregra device which is
17 * the same as the Xircom device. Enabled the code to be compiled for
18 * either Xircom or Keyspan devices.
20 * (08/11/2001) Cristian M. Craciunescu
21 * support for Xircom PGSDB9
24 * switched from using spinlock to a semaphore, which fixes lots of problems.
27 * Identify version on module load.
29 * (11/01/2000) Adam J. Richter
30 * usb_device_id table support
33 * Fixed bug with urb->dev not being set properly, now that the usb
37 * Added locks for SMP safeness.
38 * Fixed MOD_INC and MOD_DEC logic and the ability to open a port more
41 * (07/20/2000) borchers
42 * - keyspan_pda_write no longer sleeps if it is called on interrupt time;
43 * PPP and the line discipline with stty echo on can call write on
44 * interrupt time and this would cause an oops if write slept
45 * - if keyspan_pda_write is in an interrupt, it will not call
46 * usb_control_msg (which sleeps) to query the room in the device
47 * buffer, it simply uses the current room value it has
48 * - if the urb is busy or if it is throttled keyspan_pda_write just
49 * returns 0, rather than sleeping to wait for this to change; the
50 * write_chan code in n_tty.c will sleep if needed before calling
51 * keyspan_pda_write again
52 * - if the device needs to be unthrottled, write now queues up the
53 * call to usb_control_msg (which sleeps) to unthrottle the device
54 * - the wakeups from keyspan_pda_write_bulk_callback are queued rather
55 * than done directly from the callback to avoid the race in write_chan
56 * - keyspan_pda_chars_in_buffer also indicates its buffer is full if the
57 * urb status is -EINPROGRESS, meaning it cannot write at the moment
60 * Added module_init and module_exit functions to handle the fact that this
61 * driver is a loadable module now.
64 * Split driver up into device specific pieces.
69 #include <linux/kernel.h>
70 #include <linux/errno.h>
71 #include <linux/init.h>
72 #include <linux/slab.h>
73 #include <linux/tty.h>
74 #include <linux/tty_driver.h>
75 #include <linux/tty_flip.h>
76 #include <linux/module.h>
77 #include <linux/spinlock.h>
78 #include <linux/workqueue.h>
79 #include <asm/uaccess.h>
80 #include <linux/usb.h>
84 struct ezusb_hex_record
{
90 /* make a simple define to handle if we are compiling keyspan_pda or xircom support */
91 #if defined(CONFIG_USB_SERIAL_KEYSPAN_PDA) || defined(CONFIG_USB_SERIAL_KEYSPAN_PDA_MODULE)
96 #if defined(CONFIG_USB_SERIAL_XIRCOM) || defined(CONFIG_USB_SERIAL_XIRCOM_MODULE)
103 #include "keyspan_pda_fw.h"
107 #include "xircom_pgs_fw.h"
110 #include "usb-serial.h"
113 * Version Information
115 #define DRIVER_VERSION "v1.1"
116 #define DRIVER_AUTHOR "Brian Warner <warner@lothar.com>"
117 #define DRIVER_DESC "USB Keyspan PDA Converter driver"
119 struct keyspan_pda_private
{
122 struct work_struct wakeup_work
;
123 struct work_struct unthrottle_work
;
127 #define KEYSPAN_VENDOR_ID 0x06cd
128 #define KEYSPAN_PDA_FAKE_ID 0x0103
129 #define KEYSPAN_PDA_ID 0x0104 /* no clue */
131 /* For Xircom PGSDB9 and older Entregra version of the same device */
132 #define XIRCOM_VENDOR_ID 0x085a
133 #define XIRCOM_FAKE_ID 0x8027
134 #define ENTREGRA_VENDOR_ID 0x1645
135 #define ENTREGRA_FAKE_ID 0x8093
137 static struct usb_device_id id_table_combined
[] = {
139 { USB_DEVICE(KEYSPAN_VENDOR_ID
, KEYSPAN_PDA_FAKE_ID
) },
142 { USB_DEVICE(XIRCOM_VENDOR_ID
, XIRCOM_FAKE_ID
) },
143 { USB_DEVICE(ENTREGRA_VENDOR_ID
, ENTREGRA_FAKE_ID
) },
145 { USB_DEVICE(KEYSPAN_VENDOR_ID
, KEYSPAN_PDA_ID
) },
146 { } /* Terminating entry */
149 MODULE_DEVICE_TABLE (usb
, id_table_combined
);
151 static struct usb_driver keyspan_pda_driver
= {
152 .name
= "keyspan_pda",
153 .probe
= usb_serial_probe
,
154 .disconnect
= usb_serial_disconnect
,
155 .id_table
= id_table_combined
,
159 static struct usb_device_id id_table_std
[] = {
160 { USB_DEVICE(KEYSPAN_VENDOR_ID
, KEYSPAN_PDA_ID
) },
161 { } /* Terminating entry */
165 static struct usb_device_id id_table_fake
[] = {
166 { USB_DEVICE(KEYSPAN_VENDOR_ID
, KEYSPAN_PDA_FAKE_ID
) },
167 { } /* Terminating entry */
172 static struct usb_device_id id_table_fake_xircom
[] = {
173 { USB_DEVICE(XIRCOM_VENDOR_ID
, XIRCOM_FAKE_ID
) },
174 { USB_DEVICE(ENTREGRA_VENDOR_ID
, ENTREGRA_FAKE_ID
) },
179 static void keyspan_pda_wakeup_write( struct usb_serial_port
*port
)
182 struct tty_struct
*tty
= port
->tty
;
184 /* wake up port processes */
185 wake_up_interruptible( &port
->write_wait
);
187 /* wake up line discipline */
191 static void keyspan_pda_request_unthrottle( struct usb_serial
*serial
)
195 dbg(" request_unthrottle");
196 /* ask the device to tell us when the tx buffer becomes
197 sufficiently empty */
198 result
= usb_control_msg(serial
->dev
,
199 usb_sndctrlpipe(serial
->dev
, 0),
200 7, /* request_unthrottle */
201 USB_TYPE_VENDOR
| USB_RECIP_INTERFACE
203 16, /* value: threshold */
209 dbg("%s - error %d from usb_control_msg",
210 __FUNCTION__
, result
);
214 static void keyspan_pda_rx_interrupt (struct urb
*urb
, struct pt_regs
*regs
)
216 struct usb_serial_port
*port
= (struct usb_serial_port
*)urb
->context
;
217 struct tty_struct
*tty
= port
->tty
;
218 unsigned char *data
= urb
->transfer_buffer
;
221 struct keyspan_pda_private
*priv
;
222 priv
= usb_get_serial_port_data(port
);
224 switch (urb
->status
) {
231 /* this urb is terminated, clean up */
232 dbg("%s - urb shutting down with status: %d", __FUNCTION__
, urb
->status
);
235 dbg("%s - nonzero urb status received: %d", __FUNCTION__
, urb
->status
);
239 /* see if the message is data or a status interrupt */
242 /* rest of message is rx data */
243 if (urb
->actual_length
) {
244 for (i
= 1; i
< urb
->actual_length
; ++i
) {
245 tty_insert_flip_char(tty
, data
[i
], 0);
247 tty_flip_buffer_push(tty
);
251 /* status interrupt */
252 dbg(" rx int, d1=%d, d2=%d", data
[1], data
[2]);
254 case 1: /* modemline change */
256 case 2: /* tx unthrottle interrupt */
257 priv
->tx_throttled
= 0;
258 /* queue up a wakeup at scheduler time */
259 schedule_work(&priv
->wakeup_work
);
270 status
= usb_submit_urb (urb
, GFP_ATOMIC
);
272 err ("%s - usb_submit_urb failed with result %d",
273 __FUNCTION__
, status
);
277 static void keyspan_pda_rx_throttle (struct usb_serial_port
*port
)
279 /* stop receiving characters. We just turn off the URB request, and
280 let chars pile up in the device. If we're doing hardware
281 flowcontrol, the device will signal the other end when its buffer
282 fills up. If we're doing XON/XOFF, this would be a good time to
283 send an XOFF, although it might make sense to foist that off
284 upon the device too. */
286 dbg("keyspan_pda_rx_throttle port %d", port
->number
);
287 usb_kill_urb(port
->interrupt_in_urb
);
291 static void keyspan_pda_rx_unthrottle (struct usb_serial_port
*port
)
293 /* just restart the receive interrupt URB */
294 dbg("keyspan_pda_rx_unthrottle port %d", port
->number
);
295 port
->interrupt_in_urb
->dev
= port
->serial
->dev
;
296 if (usb_submit_urb(port
->interrupt_in_urb
, GFP_ATOMIC
))
297 dbg(" usb_submit_urb(read urb) failed");
302 static int keyspan_pda_setbaud (struct usb_serial
*serial
, int baud
)
308 case 110: bindex
= 0; break;
309 case 300: bindex
= 1; break;
310 case 1200: bindex
= 2; break;
311 case 2400: bindex
= 3; break;
312 case 4800: bindex
= 4; break;
313 case 9600: bindex
= 5; break;
314 case 19200: bindex
= 6; break;
315 case 38400: bindex
= 7; break;
316 case 57600: bindex
= 8; break;
317 case 115200: bindex
= 9; break;
318 default: return -EINVAL
;
321 /* rather than figure out how to sleep while waiting for this
322 to complete, I just use the "legacy" API. */
323 rc
= usb_control_msg(serial
->dev
, usb_sndctrlpipe(serial
->dev
, 0),
326 | USB_RECIP_INTERFACE
327 | USB_DIR_OUT
, /* type */
337 static void keyspan_pda_break_ctl (struct usb_serial_port
*port
, int break_state
)
339 struct usb_serial
*serial
= port
->serial
;
343 if (break_state
== -1)
344 value
= 1; /* start break */
346 value
= 0; /* clear break */
347 result
= usb_control_msg(serial
->dev
, usb_sndctrlpipe(serial
->dev
, 0),
349 USB_TYPE_VENDOR
| USB_RECIP_INTERFACE
| USB_DIR_OUT
,
350 value
, 0, NULL
, 0, 2000);
352 dbg("%s - error %d from usb_control_msg",
353 __FUNCTION__
, result
);
354 /* there is something funky about this.. the TCSBRK that 'cu' performs
355 ought to translate into a break_ctl(-1),break_ctl(0) pair HZ/4
356 seconds apart, but it feels like the break sent isn't as long as it
361 static void keyspan_pda_set_termios (struct usb_serial_port
*port
,
362 struct termios
*old_termios
)
364 struct usb_serial
*serial
= port
->serial
;
365 unsigned int cflag
= port
->tty
->termios
->c_cflag
;
367 /* cflag specifies lots of stuff: number of stop bits, parity, number
368 of data bits, baud. What can the device actually handle?:
369 CSTOPB (1 stop bit or 2)
372 There is minimal hw support for parity (a PSW bit seems to hold the
373 parity of whatever is in the accumulator). The UART either deals
374 with 10 bits (start, 8 data, stop) or 11 bits (start, 8 data,
375 1 special, stop). So, with firmware changes, we could do:
377 8N2: 11 bit, extra bit always (mark?)
378 8[EOMS]1: 11 bit, extra bit is parity
379 7[EOMS]1: 10 bit, b0/b7 is parity
380 7[EOMS]2: 11 bit, b0/b7 is parity, extra bit always (mark?)
382 HW flow control is dictated by the tty->termios->c_cflags & CRTSCTS
385 For now, just do baud. */
387 switch (cflag
& CBAUD
) {
388 /* we could support more values here, just need to calculate
389 the necessary divisors in the firmware. <asm/termbits.h>
390 has the Bnnn constants. */
391 case B110
: keyspan_pda_setbaud(serial
, 110); break;
392 case B300
: keyspan_pda_setbaud(serial
, 300); break;
393 case B1200
: keyspan_pda_setbaud(serial
, 1200); break;
394 case B2400
: keyspan_pda_setbaud(serial
, 2400); break;
395 case B4800
: keyspan_pda_setbaud(serial
, 4800); break;
396 case B9600
: keyspan_pda_setbaud(serial
, 9600); break;
397 case B19200
: keyspan_pda_setbaud(serial
, 19200); break;
398 case B38400
: keyspan_pda_setbaud(serial
, 38400); break;
399 case B57600
: keyspan_pda_setbaud(serial
, 57600); break;
400 case B115200
: keyspan_pda_setbaud(serial
, 115200); break;
401 default: dbg("can't handle requested baud rate"); break;
406 /* modem control pins: DTR and RTS are outputs and can be controlled.
407 DCD, RI, DSR, CTS are inputs and can be read. All outputs can also be
408 read. The byte passed is: DTR(b7) DCD RI DSR CTS RTS(b2) unused unused */
410 static int keyspan_pda_get_modem_info(struct usb_serial
*serial
,
411 unsigned char *value
)
415 rc
= usb_control_msg(serial
->dev
, usb_rcvctrlpipe(serial
->dev
, 0),
417 USB_TYPE_VENDOR
|USB_RECIP_INTERFACE
|USB_DIR_IN
,
418 0, 0, &data
, 1, 2000);
425 static int keyspan_pda_set_modem_info(struct usb_serial
*serial
,
429 rc
= usb_control_msg(serial
->dev
, usb_sndctrlpipe(serial
->dev
, 0),
431 USB_TYPE_VENDOR
|USB_RECIP_INTERFACE
|USB_DIR_OUT
,
432 value
, 0, NULL
, 0, 2000);
436 static int keyspan_pda_tiocmget(struct usb_serial_port
*port
, struct file
*file
)
438 struct usb_serial
*serial
= port
->serial
;
440 unsigned char status
;
443 rc
= keyspan_pda_get_modem_info(serial
, &status
);
447 ((status
& (1<<7)) ? TIOCM_DTR
: 0) |
448 ((status
& (1<<6)) ? TIOCM_CAR
: 0) |
449 ((status
& (1<<5)) ? TIOCM_RNG
: 0) |
450 ((status
& (1<<4)) ? TIOCM_DSR
: 0) |
451 ((status
& (1<<3)) ? TIOCM_CTS
: 0) |
452 ((status
& (1<<2)) ? TIOCM_RTS
: 0);
456 static int keyspan_pda_tiocmset(struct usb_serial_port
*port
, struct file
*file
,
457 unsigned int set
, unsigned int clear
)
459 struct usb_serial
*serial
= port
->serial
;
461 unsigned char status
;
463 rc
= keyspan_pda_get_modem_info(serial
, &status
);
472 if (clear
& TIOCM_RTS
)
474 if (clear
& TIOCM_DTR
)
476 rc
= keyspan_pda_set_modem_info(serial
, status
);
480 static int keyspan_pda_ioctl(struct usb_serial_port
*port
, struct file
*file
,
481 unsigned int cmd
, unsigned long arg
)
485 /* wait for any of the 4 modem inputs (DCD,RI,DSR,CTS)*/
488 /* return count of modemline transitions */
495 static int keyspan_pda_write(struct usb_serial_port
*port
,
496 const unsigned char *buf
, int count
)
498 struct usb_serial
*serial
= port
->serial
;
499 int request_unthrottle
= 0;
501 struct keyspan_pda_private
*priv
;
503 priv
= usb_get_serial_port_data(port
);
504 /* guess how much room is left in the device's ring buffer, and if we
505 want to send more than that, check first, updating our notion of
506 what is left. If our write will result in no room left, ask the
507 device to give us an interrupt when the room available rises above
508 a threshold, and hold off all writers (eventually, those using
509 select() or poll() too) until we receive that unthrottle interrupt.
510 Block if we can't write anything at all, otherwise write as much as
512 dbg("keyspan_pda_write(%d)",count
);
514 dbg(" write request of 0 bytes");
518 /* we might block because of:
519 the TX urb is in-flight (wait until it completes)
520 the device is full (wait until it says there is room)
522 spin_lock(&port
->lock
);
523 if (port
->write_urb_busy
|| priv
->tx_throttled
) {
524 spin_unlock(&port
->lock
);
527 port
->write_urb_busy
= 1;
528 spin_unlock(&port
->lock
);
530 /* At this point the URB is in our control, nobody else can submit it
531 again (the only sudden transition was the one from EINPROGRESS to
532 finished). Also, the tx process is not throttled. So we are
535 count
= (count
> port
->bulk_out_size
) ? port
->bulk_out_size
: count
;
537 /* Check if we might overrun the Tx buffer. If so, ask the
538 device how much room it really has. This is done only on
539 scheduler time, since usb_control_msg() sleeps. */
540 if (count
> priv
->tx_room
&& !in_interrupt()) {
542 rc
= usb_control_msg(serial
->dev
,
543 usb_rcvctrlpipe(serial
->dev
, 0),
545 USB_TYPE_VENDOR
| USB_RECIP_INTERFACE
547 0, /* value: 0 means "remaining room" */
553 dbg(" roomquery failed");
557 dbg(" roomquery returned 0 bytes");
558 rc
= -EIO
; /* device didn't return any data */
561 dbg(" roomquery says %d", room
);
562 priv
->tx_room
= room
;
564 if (count
> priv
->tx_room
) {
565 /* we're about to completely fill the Tx buffer, so
566 we'll be throttled afterwards. */
567 count
= priv
->tx_room
;
568 request_unthrottle
= 1;
572 /* now transfer data */
573 memcpy (port
->write_urb
->transfer_buffer
, buf
, count
);
574 /* send the data out the bulk port */
575 port
->write_urb
->transfer_buffer_length
= count
;
577 priv
->tx_room
-= count
;
579 port
->write_urb
->dev
= port
->serial
->dev
;
580 rc
= usb_submit_urb(port
->write_urb
, GFP_ATOMIC
);
582 dbg(" usb_submit_urb(write bulk) failed");
587 /* There wasn't any room left, so we are throttled until
588 the buffer empties a bit */
589 request_unthrottle
= 1;
592 if (request_unthrottle
) {
593 priv
->tx_throttled
= 1; /* block writers */
594 schedule_work(&priv
->unthrottle_work
);
600 port
->write_urb_busy
= 0;
605 static void keyspan_pda_write_bulk_callback (struct urb
*urb
, struct pt_regs
*regs
)
607 struct usb_serial_port
*port
= (struct usb_serial_port
*)urb
->context
;
608 struct keyspan_pda_private
*priv
;
610 port
->write_urb_busy
= 0;
611 priv
= usb_get_serial_port_data(port
);
613 /* queue up a wakeup at scheduler time */
614 schedule_work(&priv
->wakeup_work
);
618 static int keyspan_pda_write_room (struct usb_serial_port
*port
)
620 struct keyspan_pda_private
*priv
;
622 priv
= usb_get_serial_port_data(port
);
624 /* used by n_tty.c for processing of tabs and such. Giving it our
625 conservative guess is probably good enough, but needs testing by
626 running a console through the device. */
628 return (priv
->tx_room
);
632 static int keyspan_pda_chars_in_buffer (struct usb_serial_port
*port
)
634 struct keyspan_pda_private
*priv
;
636 priv
= usb_get_serial_port_data(port
);
638 /* when throttled, return at least WAKEUP_CHARS to tell select() (via
639 n_tty.c:normal_poll() ) that we're not writeable. */
640 if (port
->write_urb_busy
|| priv
->tx_throttled
)
646 static int keyspan_pda_open (struct usb_serial_port
*port
, struct file
*filp
)
648 struct usb_serial
*serial
= port
->serial
;
651 struct keyspan_pda_private
*priv
;
653 /* find out how much room is in the Tx ring */
654 rc
= usb_control_msg(serial
->dev
, usb_rcvctrlpipe(serial
->dev
, 0),
656 USB_TYPE_VENDOR
| USB_RECIP_INTERFACE
664 dbg("%s - roomquery failed", __FUNCTION__
);
668 dbg("%s - roomquery returned 0 bytes", __FUNCTION__
);
672 priv
= usb_get_serial_port_data(port
);
673 priv
->tx_room
= room
;
674 priv
->tx_throttled
= room
? 0 : 1;
676 /* the normal serial device seems to always turn on DTR and RTS here,
678 if (port
->tty
->termios
->c_cflag
& CBAUD
)
679 keyspan_pda_set_modem_info(serial
, (1<<7) | (1<<2) );
681 keyspan_pda_set_modem_info(serial
, 0);
683 /*Start reading from the device*/
684 port
->interrupt_in_urb
->dev
= serial
->dev
;
685 rc
= usb_submit_urb(port
->interrupt_in_urb
, GFP_KERNEL
);
687 dbg("%s - usb_submit_urb(read int) failed", __FUNCTION__
);
696 static void keyspan_pda_close(struct usb_serial_port
*port
, struct file
*filp
)
698 struct usb_serial
*serial
= port
->serial
;
701 /* the normal serial device seems to always shut off DTR and RTS now */
702 if (port
->tty
->termios
->c_cflag
& HUPCL
)
703 keyspan_pda_set_modem_info(serial
, 0);
705 /* shutdown our bulk reads and writes */
706 usb_kill_urb(port
->write_urb
);
707 usb_kill_urb(port
->interrupt_in_urb
);
712 /* download the firmware to a "fake" device (pre-renumeration) */
713 static int keyspan_pda_fake_startup (struct usb_serial
*serial
)
716 const struct ezusb_hex_record
*record
= NULL
;
718 /* download the firmware here ... */
719 response
= ezusb_set_reset(serial
, 1);
722 if (le16_to_cpu(serial
->dev
->descriptor
.idVendor
) == KEYSPAN_VENDOR_ID
)
723 record
= &keyspan_pda_firmware
[0];
726 if ((le16_to_cpu(serial
->dev
->descriptor
.idVendor
) == XIRCOM_VENDOR_ID
) ||
727 (le16_to_cpu(serial
->dev
->descriptor
.idVendor
) == ENTREGRA_VENDOR_ID
))
728 record
= &xircom_pgs_firmware
[0];
730 if (record
== NULL
) {
731 err("%s: unknown vendor, aborting.", __FUNCTION__
);
735 while(record
->address
!= 0xffff) {
736 response
= ezusb_writememory(serial
, record
->address
,
737 (unsigned char *)record
->data
,
738 record
->data_size
, 0xa0);
740 err("ezusb_writememory failed for Keyspan PDA "
741 "firmware (%d %04X %p %d)",
743 record
->address
, record
->data
, record
->data_size
);
748 /* bring device out of reset. Renumeration will occur in a moment
749 and the new device will bind to the real driver */
750 response
= ezusb_set_reset(serial
, 0);
752 /* we want this device to fail to have a driver assigned to it. */
756 static int keyspan_pda_startup (struct usb_serial
*serial
)
759 struct keyspan_pda_private
*priv
;
761 /* allocate the private data structures for all ports. Well, for all
764 priv
= kmalloc(sizeof(struct keyspan_pda_private
), GFP_KERNEL
);
766 return (1); /* error */
767 usb_set_serial_port_data(serial
->port
[0], priv
);
768 init_waitqueue_head(&serial
->port
[0]->write_wait
);
769 INIT_WORK(&priv
->wakeup_work
, (void *)keyspan_pda_wakeup_write
,
770 (void *)(serial
->port
[0]));
771 INIT_WORK(&priv
->unthrottle_work
,
772 (void *)keyspan_pda_request_unthrottle
,
777 static void keyspan_pda_shutdown (struct usb_serial
*serial
)
779 dbg("%s", __FUNCTION__
);
781 kfree(usb_get_serial_port_data(serial
->port
[0]));
785 static struct usb_serial_driver keyspan_pda_fake_device
= {
787 .owner
= THIS_MODULE
,
788 .name
= "keyspan_pda_pre",
790 .description
= "Keyspan PDA - (prerenumeration)",
791 .id_table
= id_table_fake
,
792 .num_interrupt_in
= NUM_DONT_CARE
,
793 .num_bulk_in
= NUM_DONT_CARE
,
794 .num_bulk_out
= NUM_DONT_CARE
,
796 .attach
= keyspan_pda_fake_startup
,
801 static struct usb_serial_driver xircom_pgs_fake_device
= {
803 .owner
= THIS_MODULE
,
804 .name
= "xircom_no_firm",
806 .description
= "Xircom / Entregra PGS - (prerenumeration)",
807 .id_table
= id_table_fake_xircom
,
808 .num_interrupt_in
= NUM_DONT_CARE
,
809 .num_bulk_in
= NUM_DONT_CARE
,
810 .num_bulk_out
= NUM_DONT_CARE
,
812 .attach
= keyspan_pda_fake_startup
,
816 static struct usb_serial_driver keyspan_pda_device
= {
818 .owner
= THIS_MODULE
,
819 .name
= "keyspan_pda",
821 .description
= "Keyspan PDA",
822 .id_table
= id_table_std
,
823 .num_interrupt_in
= 1,
827 .open
= keyspan_pda_open
,
828 .close
= keyspan_pda_close
,
829 .write
= keyspan_pda_write
,
830 .write_room
= keyspan_pda_write_room
,
831 .write_bulk_callback
= keyspan_pda_write_bulk_callback
,
832 .read_int_callback
= keyspan_pda_rx_interrupt
,
833 .chars_in_buffer
= keyspan_pda_chars_in_buffer
,
834 .throttle
= keyspan_pda_rx_throttle
,
835 .unthrottle
= keyspan_pda_rx_unthrottle
,
836 .ioctl
= keyspan_pda_ioctl
,
837 .set_termios
= keyspan_pda_set_termios
,
838 .break_ctl
= keyspan_pda_break_ctl
,
839 .tiocmget
= keyspan_pda_tiocmget
,
840 .tiocmset
= keyspan_pda_tiocmset
,
841 .attach
= keyspan_pda_startup
,
842 .shutdown
= keyspan_pda_shutdown
,
846 static int __init
keyspan_pda_init (void)
849 retval
= usb_serial_register(&keyspan_pda_device
);
851 goto failed_pda_register
;
853 retval
= usb_serial_register(&keyspan_pda_fake_device
);
855 goto failed_pda_fake_register
;
858 retval
= usb_serial_register(&xircom_pgs_fake_device
);
860 goto failed_xircom_register
;
862 retval
= usb_register(&keyspan_pda_driver
);
864 goto failed_usb_register
;
865 info(DRIVER_DESC
" " DRIVER_VERSION
);
869 usb_serial_deregister(&xircom_pgs_fake_device
);
870 failed_xircom_register
:
873 usb_serial_deregister(&keyspan_pda_fake_device
);
876 failed_pda_fake_register
:
878 usb_serial_deregister(&keyspan_pda_device
);
884 static void __exit
keyspan_pda_exit (void)
886 usb_deregister (&keyspan_pda_driver
);
887 usb_serial_deregister (&keyspan_pda_device
);
889 usb_serial_deregister (&keyspan_pda_fake_device
);
892 usb_serial_deregister (&xircom_pgs_fake_device
);
897 module_init(keyspan_pda_init
);
898 module_exit(keyspan_pda_exit
);
900 MODULE_AUTHOR( DRIVER_AUTHOR
);
901 MODULE_DESCRIPTION( DRIVER_DESC
);
902 MODULE_LICENSE("GPL");
904 module_param(debug
, bool, S_IRUGO
| S_IWUSR
);
905 MODULE_PARM_DESC(debug
, "Debug enabled or not");