2 * This code was developed for the Quatech USB line for linux, it used
3 * much of the code developed by Greg Kroah-Hartman for USB serial devices
7 #include <linux/errno.h>
8 #include <linux/init.h>
9 #include <linux/slab.h>
10 #include <linux/tty.h>
11 #include <linux/tty_driver.h>
12 #include <linux/tty_flip.h>
13 #include <linux/module.h>
14 #include <linux/serial.h>
15 #include <linux/usb.h>
16 #include <linux/usb/serial.h>
17 #include <linux/uaccess.h>
21 /* Version Information */
22 #define DRIVER_VERSION "v2.14"
23 #define DRIVER_AUTHOR "Tim Gobeli, Quatech, Inc"
24 #define DRIVER_DESC "Quatech USB to Serial Driver"
26 #define USB_VENDOR_ID_QUATECH 0x061d /* Quatech VID */
27 #define QUATECH_SSU200 0xC030 /* SSU200 */
28 #define QUATECH_DSU100 0xC040 /* DSU100 */
29 #define QUATECH_DSU200 0xC050 /* DSU200 */
30 #define QUATECH_QSU100 0xC060 /* QSU100 */
31 #define QUATECH_QSU200 0xC070 /* QSU200 */
32 #define QUATECH_ESU100A 0xC080 /* ESU100A */
33 #define QUATECH_ESU100B 0xC081 /* ESU100B */
34 #define QUATECH_ESU200A 0xC0A0 /* ESU200A */
35 #define QUATECH_ESU200B 0xC0A1 /* ESU200B */
36 #define QUATECH_HSU100A 0xC090 /* HSU100A */
37 #define QUATECH_HSU100B 0xC091 /* HSU100B */
38 #define QUATECH_HSU100C 0xC092 /* HSU100C */
39 #define QUATECH_HSU100D 0xC093 /* HSU100D */
40 #define QUATECH_HSU200A 0xC0B0 /* HSU200A */
41 #define QUATECH_HSU200B 0xC0B1 /* HSU200B */
42 #define QUATECH_HSU200C 0xC0B2 /* HSU200C */
43 #define QUATECH_HSU200D 0xC0B3 /* HSU200D */
44 #define QUATECH_SSU100_2 0xC120 /* SSU100_2 */
45 #define QUATECH_DSU100_2 0xC140 /* DSU100_2 */
46 #define QUATECH_DSU400_2 0xC150 /* DSU400_2 */
47 #define QUATECH_QSU100_2 0xC160 /* QSU100_2 */
48 #define QUATECH_QSU400_2 0xC170 /* QSU400_2 */
49 #define QUATECH_ESU400_2 0xC180 /* ESU400_2 */
50 #define QUATECH_ESU100_2 0xC1A0 /* ESU100_2 */
52 #define QT_SET_GET_DEVICE 0xc2
53 #define QT_OPEN_CLOSE_CHANNEL 0xca
54 #define QT_GET_SET_PREBUF_TRIG_LVL 0xcc
55 #define QT_SET_ATF 0xcd
56 #define QT_GET_SET_REGISTER 0xc0
57 #define QT_GET_SET_UART 0xc1
58 #define QT_HW_FLOW_CONTROL_MASK 0xc5
59 #define QT_SW_FLOW_CONTROL_MASK 0xc6
60 #define QT_SW_FLOW_CONTROL_DISABLE 0xc7
61 #define QT_BREAK_CONTROL 0xc8
63 #define USBD_TRANSFER_DIRECTION_IN 0xc0
64 #define USBD_TRANSFER_DIRECTION_OUT 0x40
66 #define MAX_BAUD_RATE 460800
67 #define MAX_BAUD_REMAINDER 4608
69 #define DIV_LATCH_LS 0x00
70 #define XMT_HOLD_REGISTER 0x00
71 #define XVR_BUFFER_REGISTER 0x00
72 #define DIV_LATCH_MS 0x01
73 #define FIFO_CONTROL_REGISTER 0x02
74 #define LINE_CONTROL_REGISTER 0x03
75 #define MODEM_CONTROL_REGISTER 0x04
76 #define LINE_STATUS_REGISTER 0x05
77 #define MODEM_STATUS_REGISTER 0x06
79 #define SERIAL_MCR_DTR 0x01
80 #define SERIAL_MCR_RTS 0x02
81 #define SERIAL_MCR_LOOP 0x10
83 #define SERIAL_MSR_CTS 0x10
84 #define SERIAL_MSR_CD 0x80
85 #define SERIAL_MSR_RI 0x40
86 #define SERIAL_MSR_DSR 0x20
87 #define SERIAL_MSR_MASK 0xf0
89 #define SERIAL_8_DATA 0x03
90 #define SERIAL_7_DATA 0x02
91 #define SERIAL_6_DATA 0x01
92 #define SERIAL_5_DATA 0x00
94 #define SERIAL_ODD_PARITY 0X08
95 #define SERIAL_EVEN_PARITY 0X18
96 #define SERIAL_TWO_STOPB 0x04
97 #define SERIAL_ONE_STOPB 0x00
99 #define DEFAULT_DIVISOR 0x30 /* gives 9600 baud rate */
100 #define DEFAULT_LCR SERIAL_8_DATA /* 8, none , 1 */
102 #define FULLPWRBIT 0x00000080
103 #define NEXT_BOARD_POWER_BIT 0x00000004
105 #define SERIAL_LSR_OE 0x02
106 #define SERIAL_LSR_PE 0x04
107 #define SERIAL_LSR_FE 0x08
108 #define SERIAL_LSR_BI 0x10
110 #define SERIAL_MSR_CTS 0x10
111 #define SERIAL_MSR_CD 0x80
112 #define SERIAL_MSR_RI 0x40
113 #define SERIAL_MSR_DSR 0x20
114 #define SERIAL_MSR_MASK 0xf0
116 #define PREFUFF_LEVEL_CONSERVATIVE 128
117 #define ATC_DISABLED 0x0
119 #define RR_BITS 0x03 /* for clearing clock bits */
120 #define DUPMODE_BITS 0xc0
123 #define LOOPMODE_BITS 0x41 /* LOOP1 = b6, LOOP0 = b0 (PORT B) */
124 #define ALL_LOOPBACK 0x01
125 #define MODEM_CTRL 0x40
126 #define RS232_MODE 0x00
128 static const struct usb_device_id serqt_id_table
[] = {
129 {USB_DEVICE(USB_VENDOR_ID_QUATECH
, QUATECH_SSU200
)},
130 {USB_DEVICE(USB_VENDOR_ID_QUATECH
, QUATECH_DSU100
)},
131 {USB_DEVICE(USB_VENDOR_ID_QUATECH
, QUATECH_DSU200
)},
132 {USB_DEVICE(USB_VENDOR_ID_QUATECH
, QUATECH_QSU100
)},
133 {USB_DEVICE(USB_VENDOR_ID_QUATECH
, QUATECH_QSU200
)},
134 {USB_DEVICE(USB_VENDOR_ID_QUATECH
, QUATECH_ESU100A
)},
135 {USB_DEVICE(USB_VENDOR_ID_QUATECH
, QUATECH_ESU100B
)},
136 {USB_DEVICE(USB_VENDOR_ID_QUATECH
, QUATECH_ESU200A
)},
137 {USB_DEVICE(USB_VENDOR_ID_QUATECH
, QUATECH_ESU200B
)},
138 {USB_DEVICE(USB_VENDOR_ID_QUATECH
, QUATECH_HSU100A
)},
139 {USB_DEVICE(USB_VENDOR_ID_QUATECH
, QUATECH_HSU100B
)},
140 {USB_DEVICE(USB_VENDOR_ID_QUATECH
, QUATECH_HSU100C
)},
141 {USB_DEVICE(USB_VENDOR_ID_QUATECH
, QUATECH_HSU100D
)},
142 {USB_DEVICE(USB_VENDOR_ID_QUATECH
, QUATECH_HSU200A
)},
143 {USB_DEVICE(USB_VENDOR_ID_QUATECH
, QUATECH_HSU200B
)},
144 {USB_DEVICE(USB_VENDOR_ID_QUATECH
, QUATECH_HSU200C
)},
145 {USB_DEVICE(USB_VENDOR_ID_QUATECH
, QUATECH_HSU200D
)},
146 {USB_DEVICE(USB_VENDOR_ID_QUATECH
, QUATECH_SSU100_2
)},
147 {USB_DEVICE(USB_VENDOR_ID_QUATECH
, QUATECH_DSU100_2
)},
148 {USB_DEVICE(USB_VENDOR_ID_QUATECH
, QUATECH_DSU400_2
)},
149 {USB_DEVICE(USB_VENDOR_ID_QUATECH
, QUATECH_QSU100_2
)},
150 {USB_DEVICE(USB_VENDOR_ID_QUATECH
, QUATECH_QSU400_2
)},
151 {USB_DEVICE(USB_VENDOR_ID_QUATECH
, QUATECH_ESU400_2
)},
152 {USB_DEVICE(USB_VENDOR_ID_QUATECH
, QUATECH_ESU100_2
)},
153 {} /* Terminating entry */
156 MODULE_DEVICE_TABLE(usb
, serqt_id_table
);
158 struct qt_get_device_data
{
164 struct qt_open_channel_data
{
169 struct quatech_port
{
170 int port_num
; /* number of the port */
171 struct urb
*write_urb
; /* write URB for this port */
172 struct urb
*read_urb
; /* read URB for this port */
175 __u8 shadowLCR
; /* last LCR value received */
176 __u8 shadowMCR
; /* last MCR value received */
177 __u8 shadowMSR
; /* last MSR value received */
178 __u8 shadowLSR
; /* last LSR value received */
181 /* Used for TIOCMIWAIT */
182 wait_queue_head_t msr_wait
;
183 char prev_status
, diff_status
;
185 wait_queue_head_t wait
;
187 struct async_icount icount
;
189 struct usb_serial_port
*port
; /* owner of this object */
190 struct qt_get_device_data DeviceData
;
198 static struct usb_driver serqt_usb_driver
= {
199 .name
= "quatech-usb-serial",
200 .probe
= usb_serial_probe
,
201 .disconnect
= usb_serial_disconnect
,
202 .id_table
= serqt_id_table
,
206 static int port_paranoia_check(struct usb_serial_port
*port
,
207 const char *function
)
210 dbg("%s - port == NULL", function
);
214 dbg("%s - port->serial == NULL\n", function
);
221 static int serial_paranoia_check(struct usb_serial
*serial
,
222 const char *function
)
225 dbg("%s - serial == NULL\n", function
);
230 dbg("%s - serial->type == NULL!", function
);
237 static inline struct quatech_port
*qt_get_port_private(struct usb_serial_port
240 return (struct quatech_port
*)usb_get_serial_port_data(port
);
243 static inline void qt_set_port_private(struct usb_serial_port
*port
,
244 struct quatech_port
*data
)
246 usb_set_serial_port_data(port
, (void *)data
);
249 static struct usb_serial
*get_usb_serial(struct usb_serial_port
*port
,
250 const char *function
)
252 /* if no port was specified, or it fails a paranoia check */
254 port_paranoia_check(port
, function
) ||
255 serial_paranoia_check(port
->serial
, function
)) {
257 * then say that we dont have a valid usb_serial thing,
258 * which will end up genrating -ENODEV return values
266 static void ProcessLineStatus(struct quatech_port
*qt_port
,
267 unsigned char line_status
)
271 line_status
& (SERIAL_LSR_OE
| SERIAL_LSR_PE
| SERIAL_LSR_FE
|
276 static void ProcessModemStatus(struct quatech_port
*qt_port
,
277 unsigned char modem_status
)
280 qt_port
->shadowMSR
= modem_status
;
281 wake_up_interruptible(&qt_port
->wait
);
285 static void ProcessRxChar(struct tty_struct
*tty
, struct usb_serial_port
*port
,
288 struct urb
*urb
= port
->read_urb
;
289 if (urb
->actual_length
)
290 tty_insert_flip_char(tty
, data
, TTY_NORMAL
);
293 static void qt_write_bulk_callback(struct urb
*urb
)
295 struct tty_struct
*tty
;
297 struct quatech_port
*quatech_port
;
299 status
= urb
->status
;
302 dbg("nonzero write bulk status received:%d\n", status
);
306 quatech_port
= urb
->context
;
308 dbg("%s - port %d\n", __func__
, quatech_port
->port_num
);
310 tty
= tty_port_tty_get(&quatech_port
->port
->port
);
317 static void qt_interrupt_callback(struct urb
*urb
)
322 static void qt_read_bulk_callback(struct urb
*urb
)
325 struct usb_serial_port
*port
= urb
->context
;
326 struct usb_serial
*serial
= get_usb_serial(port
, __func__
);
327 struct quatech_port
*qt_port
= qt_get_port_private(port
);
329 struct tty_struct
*tty
;
331 unsigned int RxCount
;
336 qt_port
->ReadBulkStopped
= 1;
337 dbg("%s - nonzero write bulk status received: %d\n",
338 __func__
, urb
->status
);
342 tty
= tty_port_tty_get(&port
->port
);
344 dbg("%s - bad tty pointer - exiting", __func__
);
348 data
= urb
->transfer_buffer
;
350 RxCount
= urb
->actual_length
;
352 /* index = MINOR(port->tty->device) - serial->minor; */
353 index
= tty
->index
- serial
->minor
;
355 dbg("%s - port %d\n", __func__
, port
->number
);
356 dbg("%s - port->RxHolding = %d\n", __func__
, qt_port
->RxHolding
);
358 if (port_paranoia_check(port
, __func__
) != 0) {
359 dbg("%s - port_paranoia_check, exiting\n", __func__
);
360 qt_port
->ReadBulkStopped
= 1;
365 dbg("%s - bad serial pointer, exiting\n", __func__
);
368 if (qt_port
->closePending
== 1) {
369 /* Were closing , stop reading */
370 dbg("%s - (qt_port->closepending == 1\n", __func__
);
371 qt_port
->ReadBulkStopped
= 1;
376 * RxHolding is asserted by throttle, if we assert it, we're not
377 * receiving any more characters and let the box handle the flow
380 if (qt_port
->RxHolding
== 1) {
381 qt_port
->ReadBulkStopped
= 1;
386 qt_port
->ReadBulkStopped
= 1;
388 dbg("%s - nonzero read bulk status received: %d\n",
389 __func__
, urb
->status
);
393 if (tty
&& RxCount
) {
395 for (i
= 0; i
< RxCount
; ++i
) {
396 /* Look ahead code here */
397 if ((i
<= (RxCount
- 3)) && (data
[i
] == 0x1b)
398 && (data
[i
+ 1] == 0x1b)) {
400 switch (data
[i
+ 2]) {
402 /* line status change 4th byte must follow */
403 if (i
> (RxCount
- 4)) {
404 dbg("Illegal escape seuences in received data\n");
407 ProcessLineStatus(qt_port
, data
[i
+ 3]);
413 /* Modem status status change 4th byte must follow */
414 dbg("Modem status status.\n");
415 if (i
> (RxCount
- 4)) {
416 dbg("Illegal escape sequences in received data\n");
419 ProcessModemStatus(qt_port
,
425 dbg("No status sequence.\n");
428 ProcessRxChar(tty
, port
, data
[i
]);
429 ProcessRxChar(tty
, port
, data
[i
+ 1]);
438 if (tty
&& urb
->actual_length
)
439 tty_insert_flip_char(tty
, data
[i
], TTY_NORMAL
);
442 tty_flip_buffer_push(tty
);
445 /* Continue trying to always read */
446 usb_fill_bulk_urb(port
->read_urb
, serial
->dev
,
447 usb_rcvbulkpipe(serial
->dev
,
448 port
->bulk_in_endpointAddress
),
449 port
->read_urb
->transfer_buffer
,
450 port
->read_urb
->transfer_buffer_length
,
451 qt_read_bulk_callback
, port
);
452 result
= usb_submit_urb(port
->read_urb
, GFP_ATOMIC
);
454 dbg("%s - failed resubmitting read urb, error %d",
457 if (tty
&& RxCount
) {
458 tty_flip_buffer_push(tty
);
459 tty_schedule_flip(tty
);
463 schedule_work(&port
->work
);
470 * Issue a GET_DEVICE vendor-specific request on the default control pipe If
471 * successful, fills in the qt_get_device_data structure pointed to by
472 * device_data, otherwise return a negative error number of the problem.
475 static int qt_get_device(struct usb_serial
*serial
,
476 struct qt_get_device_data
*device_data
)
479 unsigned char *transfer_buffer
;
482 kmalloc(sizeof(struct qt_get_device_data
), GFP_KERNEL
);
483 if (!transfer_buffer
)
486 result
= usb_control_msg(serial
->dev
, usb_rcvctrlpipe(serial
->dev
, 0),
487 QT_SET_GET_DEVICE
, 0xc0, 0, 0,
489 sizeof(struct qt_get_device_data
), 300);
491 memcpy(device_data
, transfer_buffer
,
492 sizeof(struct qt_get_device_data
));
493 kfree(transfer_buffer
);
498 /****************************************************************************
499 * BoxSetPrebufferLevel
500 TELLS BOX WHEN TO ASSERT FLOW CONTROL
501 ****************************************************************************/
502 static int BoxSetPrebufferLevel(struct usb_serial
*serial
)
507 buffer_length
= PREFUFF_LEVEL_CONSERVATIVE
;
508 result
= usb_control_msg(serial
->dev
, usb_sndctrlpipe(serial
->dev
, 0),
509 QT_GET_SET_PREBUF_TRIG_LVL
, 0x40,
510 buffer_length
, 0, NULL
, 0, 300);
514 /****************************************************************************
516 TELLS BOX WHEN TO ASSERT automatic transmitter control
517 ****************************************************************************/
518 static int BoxSetATC(struct usb_serial
*serial
, __u16 n_Mode
)
523 buffer_length
= PREFUFF_LEVEL_CONSERVATIVE
;
526 usb_control_msg(serial
->dev
, usb_sndctrlpipe(serial
->dev
, 0),
527 QT_SET_ATF
, 0x40, n_Mode
, 0, NULL
, 0, 300);
534 * Issue a SET_DEVICE vendor-specific request on the default control pipe If
535 * successful returns the number of bytes written, otherwise it returns a
536 * negative error number of the problem.
538 static int qt_set_device(struct usb_serial
*serial
,
539 struct qt_get_device_data
*device_data
)
545 PortSettings
= ((__u16
) (device_data
->portb
));
546 PortSettings
= (PortSettings
<< 8);
547 PortSettings
+= ((__u16
) (device_data
->porta
));
549 length
= sizeof(struct qt_get_device_data
);
550 dbg("%s - PortSettings = 0x%x\n", __func__
, PortSettings
);
552 result
= usb_control_msg(serial
->dev
, usb_sndctrlpipe(serial
->dev
, 0),
553 QT_SET_GET_DEVICE
, 0x40, PortSettings
,
558 static int qt_open_channel(struct usb_serial
*serial
, __u16 Uart_Number
,
559 struct qt_open_channel_data
*pDeviceData
)
563 result
= usb_control_msg(serial
->dev
, usb_rcvctrlpipe(serial
->dev
, 0),
564 QT_OPEN_CLOSE_CHANNEL
,
565 USBD_TRANSFER_DIRECTION_IN
, 1, Uart_Number
,
567 sizeof(struct qt_open_channel_data
), 300);
573 static int qt_close_channel(struct usb_serial
*serial
, __u16 Uart_Number
)
577 result
= usb_control_msg(serial
->dev
, usb_rcvctrlpipe(serial
->dev
, 0),
578 QT_OPEN_CLOSE_CHANNEL
,
579 USBD_TRANSFER_DIRECTION_OUT
, 0, Uart_Number
,
586 /****************************************************************************
588 * issuse a GET_REGISTER vendor-spcific request on the default control pipe
589 * If successful, fills in the pValue with the register value asked for
590 ****************************************************************************/
591 static int BoxGetRegister(struct usb_serial
*serial
, unsigned short Uart_Number
,
592 unsigned short Register_Num
, __u8
*pValue
)
595 __u16 current_length
;
597 current_length
= sizeof(struct qt_get_device_data
);
600 usb_control_msg(serial
->dev
, usb_rcvctrlpipe(serial
->dev
, 0),
601 QT_GET_SET_REGISTER
, 0xC0, Register_Num
,
602 Uart_Number
, (void *)pValue
, sizeof(*pValue
), 300);
607 /****************************************************************************
609 * issuse a GET_REGISTER vendor-spcific request on the default control pipe
610 * If successful, fills in the pValue with the register value asked for
611 ****************************************************************************/
612 static int BoxSetRegister(struct usb_serial
*serial
, unsigned short Uart_Number
,
613 unsigned short Register_Num
, unsigned short Value
)
616 unsigned short RegAndByte
;
619 RegAndByte
= RegAndByte
<< 8;
620 RegAndByte
= RegAndByte
+ Register_Num
;
623 result = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
624 QT_GET_SET_REGISTER, 0xC0, Register_Num,
625 Uart_Number, NULL, 0, 300);
629 usb_control_msg(serial
->dev
, usb_sndctrlpipe(serial
->dev
, 0),
630 QT_GET_SET_REGISTER
, 0x40, RegAndByte
, Uart_Number
,
638 * issuse a SET_UART vendor-spcific request on the default control pipe
639 * If successful sets baud rate divisor and LCR value
641 static int qt_setuart(struct usb_serial
*serial
, unsigned short Uart_Number
,
642 unsigned short default_divisor
, unsigned char default_LCR
)
645 unsigned short UartNumandLCR
;
647 UartNumandLCR
= (default_LCR
<< 8) + Uart_Number
;
650 usb_control_msg(serial
->dev
, usb_sndctrlpipe(serial
->dev
, 0),
651 QT_GET_SET_UART
, 0x40, default_divisor
,
652 UartNumandLCR
, NULL
, 0, 300);
657 static int BoxSetHW_FlowCtrl(struct usb_serial
*serial
, unsigned int index
,
661 __u8 msr
= 0, MOUT_Value
= 0;
665 /* flow control, box will clear RTS line to prevent remote */
666 mcr
= SERIAL_MCR_RTS
;
667 } /* device from xmitting more chars */
669 /* no flow control to remote device */
673 MOUT_Value
= mcr
<< 8;
676 /* flow control, box will inhibit xmit data if CTS line is
678 msr
= SERIAL_MSR_CTS
;
680 /* Box will not inhimbe xmit data due to CTS line */
686 usb_control_msg(serial
->dev
, usb_sndctrlpipe(serial
->dev
, 0),
687 QT_HW_FLOW_CONTROL_MASK
, 0x40, MOUT_Value
,
688 index
, NULL
, 0, 300);
693 static int BoxSetSW_FlowCtrl(struct usb_serial
*serial
, __u16 index
,
694 unsigned char stop_char
, unsigned char start_char
)
699 nSWflowout
= start_char
<< 8;
700 nSWflowout
= (unsigned short)stop_char
;
703 usb_control_msg(serial
->dev
, usb_sndctrlpipe(serial
->dev
, 0),
704 QT_SW_FLOW_CONTROL_MASK
, 0x40, nSWflowout
,
705 index
, NULL
, 0, 300);
710 static int BoxDisable_SW_FlowCtrl(struct usb_serial
*serial
, __u16 index
)
715 usb_control_msg(serial
->dev
, usb_sndctrlpipe(serial
->dev
, 0),
716 QT_SW_FLOW_CONTROL_DISABLE
, 0x40, 0, index
,
722 static int qt_startup(struct usb_serial
*serial
)
724 struct usb_serial_port
*port
;
725 struct quatech_port
*qt_port
;
726 struct qt_get_device_data DeviceData
;
730 dbg("enterting %s", __func__
);
732 /* Now setup per port private data */
733 for (i
= 0; i
< serial
->num_ports
; i
++) {
734 port
= serial
->port
[i
];
735 qt_port
= kzalloc(sizeof(*qt_port
), GFP_KERNEL
);
737 dbg("%s: kmalloc for quatech_port (%d) failed!.",
739 for (--i
; i
>= 0; i
--) {
740 port
= serial
->port
[i
];
741 kfree(usb_get_serial_port_data(port
));
742 usb_set_serial_port_data(port
, NULL
);
746 mutex_init(&qt_port
->lock
);
748 usb_set_serial_port_data(port
, qt_port
);
752 status
= qt_get_device(serial
, &DeviceData
);
754 dbg(__FILE__
"box_get_device failed");
758 dbg(__FILE__
"DeviceData.portb = 0x%x", DeviceData
.portb
);
760 DeviceData
.portb
&= ~FULLPWRBIT
;
761 dbg(__FILE__
"Changing DeviceData.portb to 0x%x", DeviceData
.portb
);
763 status
= qt_set_device(serial
, &DeviceData
);
765 dbg(__FILE__
"qt_set_device failed\n");
769 status
= qt_get_device(serial
, &DeviceData
);
771 dbg(__FILE__
"qt_get_device failed");
775 switch (serial
->dev
->descriptor
.idProduct
) {
778 case QUATECH_ESU100A
:
779 case QUATECH_ESU100B
:
780 case QUATECH_HSU100A
:
781 case QUATECH_HSU100B
:
782 case QUATECH_HSU100C
:
783 case QUATECH_HSU100D
:
784 DeviceData
.porta
&= ~(RR_BITS
| DUPMODE_BITS
);
785 DeviceData
.porta
|= CLKS_X4
;
786 DeviceData
.portb
&= ~(LOOPMODE_BITS
);
787 DeviceData
.portb
|= RS232_MODE
;
793 case QUATECH_ESU200A
:
794 case QUATECH_ESU200B
:
795 case QUATECH_HSU200A
:
796 case QUATECH_HSU200B
:
797 case QUATECH_HSU200C
:
798 case QUATECH_HSU200D
:
799 DeviceData
.porta
&= ~(RR_BITS
| DUPMODE_BITS
);
800 DeviceData
.porta
|= CLKS_X4
;
801 DeviceData
.portb
&= ~(LOOPMODE_BITS
);
802 DeviceData
.portb
|= ALL_LOOPBACK
;
805 DeviceData
.porta
&= ~(RR_BITS
| DUPMODE_BITS
);
806 DeviceData
.porta
|= CLKS_X4
;
807 DeviceData
.portb
&= ~(LOOPMODE_BITS
);
808 DeviceData
.portb
|= RS232_MODE
;
813 status
= BoxSetPrebufferLevel(serial
); /* sets to default value */
815 dbg(__FILE__
"BoxSetPrebufferLevel failed\n");
819 status
= BoxSetATC(serial
, ATC_DISABLED
);
821 dbg(__FILE__
"BoxSetATC failed\n");
825 dbg(__FILE__
"DeviceData.portb = 0x%x", DeviceData
.portb
);
827 DeviceData
.portb
|= NEXT_BOARD_POWER_BIT
;
828 dbg(__FILE__
"Changing DeviceData.portb to 0x%x", DeviceData
.portb
);
830 status
= qt_set_device(serial
, &DeviceData
);
832 dbg(__FILE__
"qt_set_device failed\n");
836 dbg("Exit Success %s\n", __func__
);
841 for (i
= 0; i
< serial
->num_ports
; i
++) {
842 port
= serial
->port
[i
];
843 qt_port
= qt_get_port_private(port
);
845 usb_set_serial_port_data(port
, NULL
);
848 dbg("Exit fail %s\n", __func__
);
853 static void qt_release(struct usb_serial
*serial
)
855 struct usb_serial_port
*port
;
856 struct quatech_port
*qt_port
;
859 dbg("enterting %s", __func__
);
861 for (i
= 0; i
< serial
->num_ports
; i
++) {
862 port
= serial
->port
[i
];
866 qt_port
= usb_get_serial_port_data(port
);
868 usb_set_serial_port_data(port
, NULL
);
873 static int qt_open(struct tty_struct
*tty
,
874 struct usb_serial_port
*port
)
876 struct usb_serial
*serial
;
877 struct quatech_port
*quatech_port
;
878 struct quatech_port
*port0
;
879 struct qt_open_channel_data ChannelData
;
883 if (port_paranoia_check(port
, __func__
))
886 dbg("%s - port %d\n", __func__
, port
->number
);
888 serial
= port
->serial
;
890 if (serial_paranoia_check(serial
, __func__
))
893 quatech_port
= qt_get_port_private(port
);
894 port0
= qt_get_port_private(serial
->port
[0]);
896 if (quatech_port
== NULL
|| port0
== NULL
)
899 usb_clear_halt(serial
->dev
, port
->write_urb
->pipe
);
900 usb_clear_halt(serial
->dev
, port
->read_urb
->pipe
);
903 result
= qt_get_device(serial
, &port0
->DeviceData
);
905 /* Port specific setups */
906 result
= qt_open_channel(serial
, port
->number
, &ChannelData
);
908 dbg(__FILE__
"qt_open_channel failed\n");
911 dbg(__FILE__
"qt_open_channel completed.\n");
913 /* FIXME: are these needed? Does it even do anything useful? */
914 quatech_port
->shadowLSR
= ChannelData
.line_status
&
915 (SERIAL_LSR_OE
| SERIAL_LSR_PE
| SERIAL_LSR_FE
| SERIAL_LSR_BI
);
917 quatech_port
->shadowMSR
= ChannelData
.modem_status
&
918 (SERIAL_MSR_CTS
| SERIAL_MSR_DSR
| SERIAL_MSR_RI
| SERIAL_MSR_CD
);
920 /* Set Baud rate to default and turn off (default)flow control here */
921 result
= qt_setuart(serial
, port
->number
, DEFAULT_DIVISOR
, DEFAULT_LCR
);
923 dbg(__FILE__
"qt_setuart failed\n");
926 dbg(__FILE__
"qt_setuart completed.\n");
929 * Put this here to make it responsive to stty and defaults set by
932 /* FIXME: is this needed? */
933 /* qt_set_termios(tty, port, NULL); */
935 /* Check to see if we've set up our endpoint info yet */
936 if (port0
->open_ports
== 1) {
937 if (serial
->port
[0]->interrupt_in_buffer
== NULL
) {
938 /* set up interrupt urb */
939 usb_fill_int_urb(serial
->port
[0]->interrupt_in_urb
,
941 usb_rcvintpipe(serial
->dev
,
942 serial
->port
[0]->interrupt_in_endpointAddress
),
943 serial
->port
[0]->interrupt_in_buffer
,
945 interrupt_in_urb
->transfer_buffer_length
,
946 qt_interrupt_callback
, serial
,
948 interrupt_in_urb
->interval
);
951 usb_submit_urb(serial
->port
[0]->interrupt_in_urb
,
955 "%s - Error %d submitting "
956 "interrupt urb\n", __func__
, result
);
963 dbg("port number is %d\n", port
->number
);
964 dbg("serial number is %d\n", port
->serial
->minor
);
965 dbg("Bulkin endpoint is %d\n", port
->bulk_in_endpointAddress
);
966 dbg("BulkOut endpoint is %d\n", port
->bulk_out_endpointAddress
);
967 dbg("Interrupt endpoint is %d\n", port
->interrupt_in_endpointAddress
);
968 dbg("port's number in the device is %d\n", quatech_port
->port_num
);
969 quatech_port
->read_urb
= port
->read_urb
;
971 /* set up our bulk in urb */
973 usb_fill_bulk_urb(quatech_port
->read_urb
,
975 usb_rcvbulkpipe(serial
->dev
,
976 port
->bulk_in_endpointAddress
),
977 port
->bulk_in_buffer
,
978 quatech_port
->read_urb
->transfer_buffer_length
,
979 qt_read_bulk_callback
, quatech_port
);
981 dbg("qt_open: bulkin endpoint is %d\n", port
->bulk_in_endpointAddress
);
982 quatech_port
->read_urb_busy
= true;
983 result
= usb_submit_urb(quatech_port
->read_urb
, GFP_KERNEL
);
986 "%s - Error %d submitting control urb\n",
988 quatech_port
->read_urb_busy
= false;
991 /* initialize our wait queues */
992 init_waitqueue_head(&quatech_port
->wait
);
993 init_waitqueue_head(&quatech_port
->msr_wait
);
995 /* initialize our icount structure */
996 memset(&(quatech_port
->icount
), 0x00, sizeof(quatech_port
->icount
));
1002 static int qt_chars_in_buffer(struct tty_struct
*tty
)
1004 struct usb_serial_port
*port
= tty
->driver_data
;
1005 struct usb_serial
*serial
;
1008 serial
= get_usb_serial(port
, __func__
);
1010 dbg("%s - port %d\n", __func__
, port
->number
);
1012 if (serial
->num_bulk_out
) {
1013 if (port
->write_urb
->status
== -EINPROGRESS
)
1014 chars
= port
->write_urb
->transfer_buffer_length
;
1017 dbg("%s - returns %d\n", __func__
, chars
);
1022 static void qt_block_until_empty(struct tty_struct
*tty
,
1023 struct quatech_port
*qt_port
)
1025 int timeout
= HZ
/ 10;
1031 count
= qt_chars_in_buffer(tty
);
1036 interruptible_sleep_on_timeout(&qt_port
->wait
, timeout
);
1040 dbg("%s - TIMEOUT", __func__
);
1048 static void qt_close(struct usb_serial_port
*port
)
1050 struct usb_serial
*serial
= port
->serial
;
1051 struct quatech_port
*qt_port
;
1052 struct quatech_port
*port0
;
1053 struct tty_struct
*tty
;
1058 dbg("%s - port %d\n", __func__
, port
->number
);
1060 tty
= tty_port_tty_get(&port
->port
);
1061 index
= tty
->index
- serial
->minor
;
1063 qt_port
= qt_get_port_private(port
);
1064 port0
= qt_get_port_private(serial
->port
[0]);
1066 /* shutdown any bulk reads that might be going on */
1067 if (serial
->num_bulk_out
)
1068 usb_unlink_urb(port
->write_urb
);
1069 if (serial
->num_bulk_in
)
1070 usb_unlink_urb(port
->read_urb
);
1072 /* wait up to for transmitter to empty */
1074 qt_block_until_empty(tty
, qt_port
);
1077 /* Close uart channel */
1078 status
= qt_close_channel(serial
, index
);
1080 dbg("%s - port %d qt_close_channel failed.\n",
1081 __func__
, port
->number
);
1083 port0
->open_ports
--;
1085 dbg("qt_num_open_ports in close%d:in port%d\n",
1086 port0
->open_ports
, port
->number
);
1088 if (port0
->open_ports
== 0) {
1089 if (serial
->port
[0]->interrupt_in_urb
) {
1090 dbg("%s", "Shutdown interrupt_in_urb\n");
1091 usb_kill_urb(serial
->port
[0]->interrupt_in_urb
);
1096 if (qt_port
->write_urb
) {
1097 /* if this urb had a transfer buffer already (old tx) free it */
1098 kfree(qt_port
->write_urb
->transfer_buffer
);
1099 usb_free_urb(qt_port
->write_urb
);
1104 static int qt_write(struct tty_struct
*tty
, struct usb_serial_port
*port
,
1105 const unsigned char *buf
, int count
)
1108 struct usb_serial
*serial
= get_usb_serial(port
, __func__
);
1113 dbg("%s - port %d\n", __func__
, port
->number
);
1116 dbg("%s - write request of 0 bytes\n", __func__
);
1120 /* only do something if we have a bulk out endpoint */
1121 if (serial
->num_bulk_out
) {
1122 if (port
->write_urb
->status
== -EINPROGRESS
) {
1123 dbg("%s - already writing\n", __func__
);
1128 (count
> port
->bulk_out_size
) ? port
->bulk_out_size
: count
;
1129 memcpy(port
->write_urb
->transfer_buffer
, buf
, count
);
1131 /* set up our urb */
1133 usb_fill_bulk_urb(port
->write_urb
, serial
->dev
,
1134 usb_sndbulkpipe(serial
->dev
,
1136 bulk_out_endpointAddress
),
1137 port
->write_urb
->transfer_buffer
, count
,
1138 qt_write_bulk_callback
, port
);
1140 /* send the data out the bulk port */
1141 result
= usb_submit_urb(port
->write_urb
, GFP_ATOMIC
);
1143 dbg("%s - failed submitting write urb, error %d\n",
1151 /* no bulk out, so return 0 bytes written */
1155 static int qt_write_room(struct tty_struct
*tty
)
1157 struct usb_serial_port
*port
= tty
->driver_data
;
1158 struct usb_serial
*serial
;
1159 struct quatech_port
*qt_port
;
1161 int retval
= -EINVAL
;
1163 if (port_paranoia_check(port
, __func__
)) {
1164 dbg("%s", "Invalid port\n");
1168 serial
= get_usb_serial(port
, __func__
);
1173 qt_port
= qt_get_port_private(port
);
1175 mutex_lock(&qt_port
->lock
);
1177 dbg("%s - port %d\n", __func__
, port
->number
);
1179 if (serial
->num_bulk_out
) {
1180 if (port
->write_urb
->status
!= -EINPROGRESS
)
1181 retval
= port
->bulk_out_size
;
1184 mutex_unlock(&qt_port
->lock
);
1189 static int qt_ioctl(struct tty_struct
*tty
,
1190 unsigned int cmd
, unsigned long arg
)
1192 struct usb_serial_port
*port
= tty
->driver_data
;
1193 struct quatech_port
*qt_port
= qt_get_port_private(port
);
1194 struct usb_serial
*serial
= get_usb_serial(port
, __func__
);
1197 dbg("%s cmd 0x%04x", __func__
, cmd
);
1199 index
= tty
->index
- serial
->minor
;
1201 if (cmd
== TIOCMIWAIT
) {
1202 while (qt_port
!= NULL
) {
1203 interruptible_sleep_on(&qt_port
->msr_wait
);
1204 if (signal_pending(current
))
1205 return -ERESTARTSYS
;
1207 char diff
= qt_port
->diff_status
;
1210 return -EIO
; /* no change => error */
1212 /* Consume all events */
1213 qt_port
->diff_status
= 0;
1215 if (((arg
& TIOCM_RNG
)
1216 && (diff
& SERIAL_MSR_RI
))
1217 || ((arg
& TIOCM_DSR
)
1218 && (diff
& SERIAL_MSR_DSR
))
1219 || ((arg
& TIOCM_CD
)
1220 && (diff
& SERIAL_MSR_CD
))
1221 || ((arg
& TIOCM_CTS
)
1222 && (diff
& SERIAL_MSR_CTS
))) {
1230 dbg("%s -No ioctl for that one. port = %d\n", __func__
, port
->number
);
1231 return -ENOIOCTLCMD
;
1234 static void qt_set_termios(struct tty_struct
*tty
,
1235 struct usb_serial_port
*port
,
1236 struct ktermios
*old_termios
)
1238 struct ktermios
*termios
= tty
->termios
;
1239 unsigned char new_LCR
= 0;
1240 unsigned int cflag
= termios
->c_cflag
;
1242 int baud
, divisor
, remainder
;
1245 dbg("%s", __func__
);
1247 index
= tty
->index
- port
->serial
->minor
;
1251 new_LCR
|= SERIAL_5_DATA
;
1254 new_LCR
|= SERIAL_6_DATA
;
1257 new_LCR
|= SERIAL_7_DATA
;
1261 new_LCR
|= SERIAL_8_DATA
;
1266 if (cflag
& PARENB
) {
1268 new_LCR
|= SERIAL_ODD_PARITY
;
1270 new_LCR
|= SERIAL_EVEN_PARITY
;
1273 new_LCR
|= SERIAL_TWO_STOPB
;
1275 new_LCR
|= SERIAL_ONE_STOPB
;
1277 dbg("%s - 4\n", __func__
);
1279 /* Thats the LCR stuff, go ahead and set it */
1280 baud
= tty_get_baud_rate(tty
);
1282 /* pick a default, any default... */
1285 dbg("%s - got baud = %d\n", __func__
, baud
);
1287 divisor
= MAX_BAUD_RATE
/ baud
;
1288 remainder
= MAX_BAUD_RATE
% baud
;
1289 /* Round to nearest divisor */
1290 if (((remainder
* 2) >= baud
) && (baud
!= 110))
1294 * Set Baud rate to default and turn off (default)flow control here
1297 qt_setuart(port
->serial
, index
, (unsigned short)divisor
, new_LCR
);
1299 dbg(__FILE__
"qt_setuart failed\n");
1303 /* Now determine flow control */
1304 if (cflag
& CRTSCTS
) {
1305 dbg("%s - Enabling HW flow control port %d\n", __func__
,
1308 /* Enable RTS/CTS flow control */
1309 status
= BoxSetHW_FlowCtrl(port
->serial
, index
, 1);
1312 dbg(__FILE__
"BoxSetHW_FlowCtrl failed\n");
1316 /* Disable RTS/CTS flow control */
1317 dbg("%s - disabling HW flow control port %d\n", __func__
,
1320 status
= BoxSetHW_FlowCtrl(port
->serial
, index
, 0);
1322 dbg(__FILE__
"BoxSetHW_FlowCtrl failed\n");
1328 /* if we are implementing XON/XOFF, set the start and stop character in
1330 if (I_IXOFF(tty
) || I_IXON(tty
)) {
1331 unsigned char stop_char
= STOP_CHAR(tty
);
1332 unsigned char start_char
= START_CHAR(tty
);
1334 BoxSetSW_FlowCtrl(port
->serial
, index
, stop_char
,
1337 dbg(__FILE__
"BoxSetSW_FlowCtrl (enabled) failed\n");
1340 /* disable SW flow control */
1341 status
= BoxDisable_SW_FlowCtrl(port
->serial
, index
);
1343 dbg(__FILE__
"BoxSetSW_FlowCtrl (diabling) failed\n");
1346 tty
->termios
->c_cflag
&= ~CMSPAR
;
1347 /* FIXME: Error cases should be returning the actual bits changed only */
1350 static void qt_break(struct tty_struct
*tty
, int break_state
)
1352 struct usb_serial_port
*port
= tty
->driver_data
;
1353 struct usb_serial
*serial
= get_usb_serial(port
, __func__
);
1354 struct quatech_port
*qt_port
;
1356 unsigned int result
;
1358 index
= tty
->index
- serial
->minor
;
1360 qt_port
= qt_get_port_private(port
);
1362 if (break_state
== -1)
1367 mutex_lock(&qt_port
->lock
);
1369 dbg("%s - port %d\n", __func__
, port
->number
);
1372 usb_control_msg(serial
->dev
, usb_sndctrlpipe(serial
->dev
, 0),
1373 QT_BREAK_CONTROL
, 0x40, onoff
, index
, NULL
, 0, 300);
1375 mutex_unlock(&qt_port
->lock
);
1378 static inline int qt_real_tiocmget(struct tty_struct
*tty
,
1379 struct usb_serial_port
*port
,
1380 struct usb_serial
*serial
)
1385 unsigned int result
= 0;
1389 dbg("%s - port %d, tty =0x%p\n", __func__
, port
->number
, tty
);
1391 index
= tty
->index
- serial
->minor
;
1393 BoxGetRegister(port
->serial
, index
, MODEM_CONTROL_REGISTER
, &mcr
);
1396 BoxGetRegister(port
->serial
, index
,
1397 MODEM_STATUS_REGISTER
, &msr
);
1402 result
= ((mcr
& SERIAL_MCR_DTR
) ? TIOCM_DTR
: 0)
1404 | ((mcr
& SERIAL_MCR_RTS
) ? TIOCM_RTS
: 0)
1406 | ((msr
& SERIAL_MSR_CTS
) ? TIOCM_CTS
: 0)
1408 | ((msr
& SERIAL_MSR_CD
) ? TIOCM_CAR
: 0)
1409 /* Carrier detect is set */
1410 | ((msr
& SERIAL_MSR_RI
) ? TIOCM_RI
: 0)
1411 /* Ring indicator set */
1412 | ((msr
& SERIAL_MSR_DSR
) ? TIOCM_DSR
: 0);
1420 static inline int qt_real_tiocmset(struct tty_struct
*tty
,
1421 struct usb_serial_port
*port
,
1422 struct usb_serial
*serial
,
1430 dbg("%s - port %d\n", __func__
, port
->number
);
1432 index
= tty
->index
- serial
->minor
;
1434 BoxGetRegister(port
->serial
, index
, MODEM_CONTROL_REGISTER
, &mcr
);
1439 * Turn off the RTS and DTR and loopbcck and then only turn on what was
1442 mcr
&= ~(SERIAL_MCR_RTS
| SERIAL_MCR_DTR
| SERIAL_MCR_LOOP
);
1443 if (value
& TIOCM_RTS
)
1444 mcr
|= SERIAL_MCR_RTS
;
1445 if (value
& TIOCM_DTR
)
1446 mcr
|= SERIAL_MCR_DTR
;
1447 if (value
& TIOCM_LOOP
)
1448 mcr
|= SERIAL_MCR_LOOP
;
1451 BoxSetRegister(port
->serial
, index
, MODEM_CONTROL_REGISTER
, mcr
);
1458 static int qt_tiocmget(struct tty_struct
*tty
)
1460 struct usb_serial_port
*port
= tty
->driver_data
;
1461 struct usb_serial
*serial
= get_usb_serial(port
, __func__
);
1462 struct quatech_port
*qt_port
= qt_get_port_private(port
);
1463 int retval
= -ENODEV
;
1465 dbg("In %s\n", __func__
);
1470 mutex_lock(&qt_port
->lock
);
1472 dbg("%s - port %d\n", __func__
, port
->number
);
1473 dbg("%s - port->RxHolding = %d\n", __func__
, qt_port
->RxHolding
);
1475 retval
= qt_real_tiocmget(tty
, port
, serial
);
1477 mutex_unlock(&qt_port
->lock
);
1481 static int qt_tiocmset(struct tty_struct
*tty
,
1482 unsigned int set
, unsigned int clear
)
1485 struct usb_serial_port
*port
= tty
->driver_data
;
1486 struct usb_serial
*serial
= get_usb_serial(port
, __func__
);
1487 struct quatech_port
*qt_port
= qt_get_port_private(port
);
1488 int retval
= -ENODEV
;
1490 dbg("In %s\n", __func__
);
1495 mutex_lock(&qt_port
->lock
);
1497 dbg("%s - port %d\n", __func__
, port
->number
);
1498 dbg("%s - qt_port->RxHolding = %d\n", __func__
, qt_port
->RxHolding
);
1500 retval
= qt_real_tiocmset(tty
, port
, serial
, set
);
1502 mutex_unlock(&qt_port
->lock
);
1506 static void qt_throttle(struct tty_struct
*tty
)
1508 struct usb_serial_port
*port
= tty
->driver_data
;
1509 struct usb_serial
*serial
= get_usb_serial(port
, __func__
);
1510 struct quatech_port
*qt_port
;
1512 dbg("%s - port %d\n", __func__
, port
->number
);
1517 qt_port
= qt_get_port_private(port
);
1519 mutex_lock(&qt_port
->lock
);
1521 /* pass on to the driver specific version of this function */
1522 qt_port
->RxHolding
= 1;
1523 dbg("%s - port->RxHolding = 1\n", __func__
);
1525 mutex_unlock(&qt_port
->lock
);
1529 static void qt_unthrottle(struct tty_struct
*tty
)
1531 struct usb_serial_port
*port
= tty
->driver_data
;
1532 struct usb_serial
*serial
= get_usb_serial(port
, __func__
);
1533 struct quatech_port
*qt_port
;
1534 unsigned int result
;
1539 qt_port
= qt_get_port_private(port
);
1541 mutex_lock(&qt_port
->lock
);
1543 dbg("%s - port %d\n", __func__
, port
->number
);
1545 if (qt_port
->RxHolding
== 1) {
1546 dbg("%s -qt_port->RxHolding == 1\n", __func__
);
1548 qt_port
->RxHolding
= 0;
1549 dbg("%s - qt_port->RxHolding = 0\n", __func__
);
1551 /* if we have a bulk endpoint, start it up */
1552 if ((serial
->num_bulk_in
) && (qt_port
->ReadBulkStopped
== 1)) {
1553 /* Start reading from the device */
1554 usb_fill_bulk_urb(port
->read_urb
, serial
->dev
,
1555 usb_rcvbulkpipe(serial
->dev
,
1556 port
->bulk_in_endpointAddress
),
1557 port
->read_urb
->transfer_buffer
,
1559 transfer_buffer_length
,
1560 qt_read_bulk_callback
, port
);
1561 result
= usb_submit_urb(port
->read_urb
, GFP_ATOMIC
);
1563 err("%s - failed restarting read urb, error %d",
1567 mutex_unlock(&qt_port
->lock
);
1572 static int qt_calc_num_ports(struct usb_serial
*serial
)
1576 dbg("numberofendpoints: %d\n",
1577 (int)serial
->interface
->cur_altsetting
->desc
.bNumEndpoints
);
1578 dbg("numberofendpoints: %d\n",
1579 (int)serial
->interface
->altsetting
->desc
.bNumEndpoints
);
1582 (serial
->interface
->cur_altsetting
->desc
.bNumEndpoints
- 1) / 2;
1587 static struct usb_serial_driver quatech_device
= {
1589 .owner
= THIS_MODULE
,
1592 .description
= DRIVER_DESC
,
1593 .usb_driver
= &serqt_usb_driver
,
1594 .id_table
= serqt_id_table
,
1599 .write_room
= qt_write_room
,
1600 .chars_in_buffer
= qt_chars_in_buffer
,
1601 .throttle
= qt_throttle
,
1602 .unthrottle
= qt_unthrottle
,
1603 .calc_num_ports
= qt_calc_num_ports
,
1605 .set_termios
= qt_set_termios
,
1606 .break_ctl
= qt_break
,
1607 .tiocmget
= qt_tiocmget
,
1608 .tiocmset
= qt_tiocmset
,
1609 .attach
= qt_startup
,
1610 .release
= qt_release
,
1613 static int __init
serqt_usb_init(void)
1617 dbg("%s\n", __func__
);
1619 /* register with usb-serial */
1620 retval
= usb_serial_register(&quatech_device
);
1623 goto failed_usb_serial_register
;
1625 printk(KERN_INFO KBUILD_MODNAME
": " DRIVER_VERSION
":"
1628 /* register with usb */
1630 retval
= usb_register(&serqt_usb_driver
);
1634 /* if we're here, usb_register() failed */
1635 usb_serial_deregister(&quatech_device
);
1636 failed_usb_serial_register
:
1640 static void __exit
serqt_usb_exit(void)
1642 usb_deregister(&serqt_usb_driver
);
1643 usb_serial_deregister(&quatech_device
);
1646 module_init(serqt_usb_init
);
1647 module_exit(serqt_usb_exit
);
1649 MODULE_AUTHOR(DRIVER_AUTHOR
);
1650 MODULE_DESCRIPTION(DRIVER_DESC
);
1651 MODULE_LICENSE("GPL");
1653 module_param(debug
, bool, S_IRUGO
| S_IWUSR
);
1654 MODULE_PARM_DESC(debug
, "Debug enabled or not");