2 * USB driver for Gigaset 307x directly or using M105 Data.
4 * Copyright (c) 2001 by Stefan Eilers
5 * and Hansjoerg Lipp <hjlipp@web.de>.
7 * This driver was derived from the USB skeleton driver by
8 * Greg Kroah-Hartman <greg@kroah.com>
10 * =====================================================================
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License as
13 * published by the Free Software Foundation; either version 2 of
14 * the License, or (at your option) any later version.
15 * =====================================================================
20 #include <linux/errno.h>
21 #include <linux/init.h>
22 #include <linux/slab.h>
23 #include <linux/usb.h>
24 #include <linux/module.h>
25 #include <linux/moduleparam.h>
27 /* Version Information */
28 #define DRIVER_AUTHOR "Hansjoerg Lipp <hjlipp@web.de>, Stefan Eilers"
29 #define DRIVER_DESC "USB Driver for Gigaset 307x using M105"
31 /* Module parameters */
33 static int startmode
= SM_ISDN
;
34 static int cidmode
= 1;
36 module_param(startmode
, int, S_IRUGO
);
37 module_param(cidmode
, int, S_IRUGO
);
38 MODULE_PARM_DESC(startmode
, "start in isdn4linux mode");
39 MODULE_PARM_DESC(cidmode
, "Call-ID mode");
41 #define GIGASET_MINORS 1
42 #define GIGASET_MINOR 8
43 #define GIGASET_MODULENAME "usb_gigaset"
44 #define GIGASET_DEVNAME "ttyGU"
46 #define IF_WRITEBUF 2000 //FIXME // WAKEUP_CHARS: 256
48 /* Values for the Gigaset M105 Data */
49 #define USB_M105_VENDOR_ID 0x0681
50 #define USB_M105_PRODUCT_ID 0x0009
52 /* table of devices that work with this driver */
53 static const struct usb_device_id gigaset_table
[] = {
54 { USB_DEVICE(USB_M105_VENDOR_ID
, USB_M105_PRODUCT_ID
) },
55 { } /* Terminating entry */
58 MODULE_DEVICE_TABLE(usb
, gigaset_table
);
61 * Control requests (empty fields: 00)
63 * RT|RQ|VALUE|INDEX|LEN |DATA
66 * Get flags (1 byte). Bits: 0=dtr,1=rts,3-7:?
68 * Get device information/status (llll: 0x200 and 0x40 seen).
69 * Real size: I only saw MIN(llll,0x64).
70 * Contents: seems to be always the same...
71 * offset 0x00: Length of this structure (0x64) (len: 1,2,3 bytes)
72 * offset 0x3c: String (16 bit chars): "MCCI USB Serial V2.0"
76 * Initialize/reset device ?
78 * ? (xx=00 or 01; 01 on start, 00 on close)
80 * Set/clear flags vv=value, mm=mask (see RQ 08)
82 * Used before the following configuration requests are issued
83 * (with xx=0x0f). I've seen other values<0xf, though.
85 * Set baud rate. xxxx=ceil(0x384000/rate)=trunc(0x383fff/rate)+1.
87 * Set byte size and parity. p: 0x20=even,0x10=odd,0x00=no parity
88 * [ 0x30: m, 0x40: s ]
89 * [s: 0: 1 stop bit; 1: 1.5; 2: 2]
90 * bb: bits/byte (seen 7 and 8)
91 * 41 13 -- -- -- -- 10 00 ww 00 00 00 xx 00 00 00 yy 00 00 00 zz 00 00 00
93 * Initialization: 01, 40, 00, 00
94 * Open device: 00 40, 00, 00
95 * yy and zz seem to be equal, either 0x00 or 0x0a
96 * (ww,xx) pairs seen: (00,00), (00,40), (01,40), (09,80), (19,80)
97 * 41 19 -- -- -- -- 06 00 00 00 00 xx 11 13
98 * Used after every "configuration sequence" (RQ 12, RQs 01/03/13).
99 * xx is usually 0x00 but was 0x7e before starting data transfer
100 * in unimodem mode. So, this might be an array of characters that need
101 * special treatment ("commit all bufferd data"?), 11=^Q, 13=^S.
103 * Unimodem mode: use "modprobe ppp_async flag_time=0" as the device _needs_ two
107 /* functions called if a device of this driver is connected/disconnected */
108 static int gigaset_probe(struct usb_interface
*interface
,
109 const struct usb_device_id
*id
);
110 static void gigaset_disconnect(struct usb_interface
*interface
);
112 /* functions called before/after suspend */
113 static int gigaset_suspend(struct usb_interface
*intf
, pm_message_t message
);
114 static int gigaset_resume(struct usb_interface
*intf
);
115 static int gigaset_pre_reset(struct usb_interface
*intf
);
117 static struct gigaset_driver
*driver
= NULL
;
119 /* usb specific object needed to register this driver with the usb subsystem */
120 static struct usb_driver gigaset_usb_driver
= {
121 .name
= GIGASET_MODULENAME
,
122 .probe
= gigaset_probe
,
123 .disconnect
= gigaset_disconnect
,
124 .id_table
= gigaset_table
,
125 .suspend
= gigaset_suspend
,
126 .resume
= gigaset_resume
,
127 .reset_resume
= gigaset_resume
,
128 .pre_reset
= gigaset_pre_reset
,
129 .post_reset
= gigaset_resume
,
132 struct usb_cardstate
{
133 struct usb_device
*udev
; /* usb device pointer */
134 struct usb_interface
*interface
; /* interface for this device */
135 int busy
; /* bulk output in progress */
138 unsigned char *bulk_out_buffer
;
140 __u8 bulk_out_endpointAddr
;
141 struct urb
*bulk_out_urb
;
145 struct urb
*read_urb
;
146 __u8 int_in_endpointAddr
;
148 char bchars
[6]; /* for request 0x19 */
151 static inline unsigned tiocm_to_gigaset(unsigned state
)
153 return ((state
& TIOCM_DTR
) ? 1 : 0) | ((state
& TIOCM_RTS
) ? 2 : 0);
156 #ifdef CONFIG_GIGASET_UNDOCREQ
157 /* WARNING: EXPERIMENTAL! */
158 static int gigaset_set_modem_ctrl(struct cardstate
*cs
, unsigned old_state
,
161 struct usb_device
*udev
= cs
->hw
.usb
->udev
;
165 mask
= tiocm_to_gigaset(old_state
^ new_state
);
166 val
= tiocm_to_gigaset(new_state
);
168 gig_dbg(DEBUG_USBREQ
, "set flags 0x%02x with mask 0x%02x", val
, mask
);
169 // don't use this in an interrupt/BH
170 r
= usb_control_msg(udev
, usb_sndctrlpipe(udev
, 0), 7, 0x41,
171 (val
& 0xff) | ((mask
& 0xff) << 8), 0,
172 NULL
, 0, 2000 /* timeout? */);
179 static int set_value(struct cardstate
*cs
, u8 req
, u16 val
)
181 struct usb_device
*udev
= cs
->hw
.usb
->udev
;
184 gig_dbg(DEBUG_USBREQ
, "request %02x (%04x)",
185 (unsigned)req
, (unsigned)val
);
186 r
= usb_control_msg(udev
, usb_sndctrlpipe(udev
, 0), 0x12, 0x41,
187 0xf /*?*/, 0, NULL
, 0, 2000 /*?*/);
188 /* no idea what this does */
190 dev_err(&udev
->dev
, "error %d on request 0x12\n", -r
);
194 r
= usb_control_msg(udev
, usb_sndctrlpipe(udev
, 0), req
, 0x41,
195 val
, 0, NULL
, 0, 2000 /*?*/);
197 dev_err(&udev
->dev
, "error %d on request 0x%02x\n",
200 r2
= usb_control_msg(udev
, usb_sndctrlpipe(udev
, 0), 0x19, 0x41,
201 0, 0, cs
->hw
.usb
->bchars
, 6, 2000 /*?*/);
203 dev_err(&udev
->dev
, "error %d on request 0x19\n", -r2
);
205 return r
< 0 ? r
: (r2
< 0 ? r2
: 0);
208 /* WARNING: HIGHLY EXPERIMENTAL! */
209 // don't use this in an interrupt/BH
210 static int gigaset_baud_rate(struct cardstate
*cs
, unsigned cflag
)
219 case B300
: rate
= 300; break;
220 case B600
: rate
= 600; break;
221 case B1200
: rate
= 1200; break;
222 case B2400
: rate
= 2400; break;
223 case B4800
: rate
= 4800; break;
224 case B9600
: rate
= 9600; break;
225 case B19200
: rate
= 19200; break;
226 case B38400
: rate
= 38400; break;
227 case B57600
: rate
= 57600; break;
228 case B115200
: rate
= 115200; break;
231 dev_err(cs
->dev
, "unsupported baudrate request 0x%x,"
232 " using default of B9600\n", cflag
);
235 val
= 0x383fff / rate
+ 1;
237 return set_value(cs
, 1, val
);
240 /* WARNING: HIGHLY EXPERIMENTAL! */
241 // don't use this in an interrupt/BH
242 static int gigaset_set_line_ctrl(struct cardstate
*cs
, unsigned cflag
)
248 val
|= (cflag
& PARODD
) ? 0x10 : 0x20;
250 /* set the number of data bits */
251 switch (cflag
& CSIZE
) {
253 val
|= 5 << 8; break;
255 val
|= 6 << 8; break;
257 val
|= 7 << 8; break;
259 val
|= 8 << 8; break;
261 dev_err(cs
->dev
, "CSIZE was not CS5-CS8, using default of 8\n");
266 /* set the number of stop bits */
267 if (cflag
& CSTOPB
) {
268 if ((cflag
& CSIZE
) == CS5
)
269 val
|= 1; /* 1.5 stop bits */ //FIXME is this okay?
271 val
|= 2; /* 2 stop bits */
274 return set_value(cs
, 3, val
);
278 static int gigaset_set_modem_ctrl(struct cardstate
*cs
, unsigned old_state
,
284 static int gigaset_set_line_ctrl(struct cardstate
*cs
, unsigned cflag
)
289 static int gigaset_baud_rate(struct cardstate
*cs
, unsigned cflag
)
296 /*================================================================================================================*/
297 static int gigaset_init_bchannel(struct bc_state
*bcs
)
299 /* nothing to do for M10x */
300 gigaset_bchannel_up(bcs
);
304 static int gigaset_close_bchannel(struct bc_state
*bcs
)
306 /* nothing to do for M10x */
307 gigaset_bchannel_down(bcs
);
311 static int write_modem(struct cardstate
*cs
);
312 static int send_cb(struct cardstate
*cs
, struct cmdbuf_t
*cb
);
315 /* Write tasklet handler: Continue sending current skb, or send command, or
316 * start sending an skb from the send queue.
318 static void gigaset_modem_fill(unsigned long data
)
320 struct cardstate
*cs
= (struct cardstate
*) data
;
321 struct bc_state
*bcs
= &cs
->bcs
[0]; /* only one channel */
325 gig_dbg(DEBUG_OUTPUT
, "modem_fill");
327 if (cs
->hw
.usb
->busy
) {
328 gig_dbg(DEBUG_OUTPUT
, "modem_fill: busy");
334 if (!bcs
->tx_skb
) { /* no skb is being sent */
336 if (cb
) { /* commands to send? */
337 gig_dbg(DEBUG_OUTPUT
, "modem_fill: cb");
338 if (send_cb(cs
, cb
) < 0) {
339 gig_dbg(DEBUG_OUTPUT
,
340 "modem_fill: send_cb failed");
341 again
= 1; /* no callback will be
344 } else { /* skbs to send? */
345 bcs
->tx_skb
= skb_dequeue(&bcs
->squeue
);
348 "Dequeued skb (Adr: %lx)!",
349 (unsigned long) bcs
->tx_skb
);
354 gig_dbg(DEBUG_OUTPUT
, "modem_fill: tx_skb");
355 if (write_modem(cs
) < 0) {
356 gig_dbg(DEBUG_OUTPUT
,
357 "modem_fill: write_modem failed");
358 // FIXME should we tell the LL?
359 again
= 1; /* no callback will be called! */
366 * gigaset_read_int_callback
368 * It is called if the data was received from the device.
370 static void gigaset_read_int_callback(struct urb
*urb
)
372 struct inbuf_t
*inbuf
= urb
->context
;
373 struct cardstate
*cs
= inbuf
->cs
;
374 int status
= urb
->status
;
381 numbytes
= urb
->actual_length
;
387 "%s: There was no leading 0, but 0x%02x!\n",
388 __func__
, (unsigned) *src
);
389 ++src
; /* skip leading 0x00 */
391 if (gigaset_fill_inbuf(inbuf
, src
, numbytes
)) {
392 gig_dbg(DEBUG_INTR
, "%s-->BH", __func__
);
393 gigaset_schedule_event(inbuf
->cs
);
396 gig_dbg(DEBUG_INTR
, "Received zero block length");
398 /* The urb might have been killed. */
399 gig_dbg(DEBUG_ANY
, "%s - nonzero status received: %d",
401 if (status
== -ENOENT
|| status
== -ESHUTDOWN
)
402 /* killed or endpoint shutdown: don't resubmit */
407 spin_lock_irqsave(&cs
->lock
, flags
);
408 if (!cs
->connected
) {
409 spin_unlock_irqrestore(&cs
->lock
, flags
);
410 err("%s: disconnected", __func__
);
413 r
= usb_submit_urb(urb
, GFP_ATOMIC
);
414 spin_unlock_irqrestore(&cs
->lock
, flags
);
416 dev_err(cs
->dev
, "error %d resubmitting URB\n", -r
);
420 /* This callback routine is called when data was transmitted to the device. */
421 static void gigaset_write_bulk_callback(struct urb
*urb
)
423 struct cardstate
*cs
= urb
->context
;
424 int status
= urb
->status
;
428 case 0: /* normal completion */
430 case -ENOENT
: /* killed */
431 gig_dbg(DEBUG_ANY
, "%s: killed", __func__
);
432 cs
->hw
.usb
->busy
= 0;
435 dev_err(cs
->dev
, "bulk transfer failed (status %d)\n",
437 /* That's all we can do. Communication problems
438 are handled by timeouts or network protocols. */
441 spin_lock_irqsave(&cs
->lock
, flags
);
442 if (!cs
->connected
) {
443 err("%s: not connected", __func__
);
445 cs
->hw
.usb
->busy
= 0;
446 tasklet_schedule(&cs
->write_tasklet
);
448 spin_unlock_irqrestore(&cs
->lock
, flags
);
451 static int send_cb(struct cardstate
*cs
, struct cmdbuf_t
*cb
)
453 struct cmdbuf_t
*tcb
;
456 int status
= -ENOENT
; // FIXME
457 struct usb_cardstate
*ucs
= cs
->hw
.usb
;
463 spin_lock_irqsave(&cs
->cmdlock
, flags
);
464 cs
->cmdbytes
-= cs
->curlen
;
465 gig_dbg(DEBUG_OUTPUT
, "send_cb: sent %u bytes, %u left",
466 cs
->curlen
, cs
->cmdbytes
);
467 cs
->cmdbuf
= cb
= cb
->next
;
470 cs
->curlen
= cb
->len
;
472 cs
->lastcmdbuf
= NULL
;
475 spin_unlock_irqrestore(&cs
->cmdlock
, flags
);
477 if (tcb
->wake_tasklet
)
478 tasklet_schedule(tcb
->wake_tasklet
);
482 count
= min(cb
->len
, ucs
->bulk_out_size
);
483 gig_dbg(DEBUG_OUTPUT
, "send_cb: send %d bytes", count
);
485 usb_fill_bulk_urb(ucs
->bulk_out_urb
, ucs
->udev
,
486 usb_sndbulkpipe(ucs
->udev
,
487 ucs
->bulk_out_endpointAddr
& 0x0f),
488 cb
->buf
+ cb
->offset
, count
,
489 gigaset_write_bulk_callback
, cs
);
495 spin_lock_irqsave(&cs
->lock
, flags
);
496 status
= cs
->connected
? usb_submit_urb(ucs
->bulk_out_urb
, GFP_ATOMIC
) : -ENODEV
;
497 spin_unlock_irqrestore(&cs
->lock
, flags
);
502 "could not submit urb (error %d)\n",
504 cb
->len
= 0; /* skip urb => remove cb+wakeup
505 in next loop cycle */
508 } while (cb
&& status
); /* next command on error */
513 /* Send command to device. */
514 static int gigaset_write_cmd(struct cardstate
*cs
, const unsigned char *buf
,
515 int len
, struct tasklet_struct
*wake_tasklet
)
520 gigaset_dbg_buffer(cs
->mstate
!= MS_LOCKED
?
521 DEBUG_TRANSCMD
: DEBUG_LOCKCMD
,
522 "CMD Transmit", len
, buf
);
527 if (!(cb
= kmalloc(sizeof(struct cmdbuf_t
) + len
, GFP_ATOMIC
))) {
528 dev_err(cs
->dev
, "%s: out of memory\n", __func__
);
532 memcpy(cb
->buf
, buf
, len
);
536 cb
->wake_tasklet
= wake_tasklet
;
538 spin_lock_irqsave(&cs
->cmdlock
, flags
);
539 cb
->prev
= cs
->lastcmdbuf
;
541 cs
->lastcmdbuf
->next
= cb
;
548 spin_unlock_irqrestore(&cs
->cmdlock
, flags
);
550 spin_lock_irqsave(&cs
->lock
, flags
);
552 tasklet_schedule(&cs
->write_tasklet
);
553 spin_unlock_irqrestore(&cs
->lock
, flags
);
557 static int gigaset_write_room(struct cardstate
*cs
)
561 bytes
= cs
->cmdbytes
;
562 return bytes
< IF_WRITEBUF
? IF_WRITEBUF
- bytes
: 0;
565 static int gigaset_chars_in_buffer(struct cardstate
*cs
)
570 static int gigaset_brkchars(struct cardstate
*cs
, const unsigned char buf
[6])
572 #ifdef CONFIG_GIGASET_UNDOCREQ
573 struct usb_device
*udev
= cs
->hw
.usb
->udev
;
575 gigaset_dbg_buffer(DEBUG_USBREQ
, "brkchars", 6, buf
);
576 memcpy(cs
->hw
.usb
->bchars
, buf
, 6);
577 return usb_control_msg(udev
, usb_sndctrlpipe(udev
, 0), 0x19, 0x41,
578 0, 0, &buf
, 6, 2000);
584 static int gigaset_freebcshw(struct bc_state
*bcs
)
590 /* Initialize the b-channel structure */
591 static int gigaset_initbcshw(struct bc_state
*bcs
)
598 static void gigaset_reinitbcshw(struct bc_state
*bcs
)
600 /* nothing to do for M10x */
603 static void gigaset_freecshw(struct cardstate
*cs
)
605 tasklet_kill(&cs
->write_tasklet
);
609 static int gigaset_initcshw(struct cardstate
*cs
)
611 struct usb_cardstate
*ucs
;
614 kmalloc(sizeof(struct usb_cardstate
), GFP_KERNEL
);
622 ucs
->bchars
[4] = 0x11;
623 ucs
->bchars
[5] = 0x13;
624 ucs
->bulk_out_buffer
= NULL
;
625 ucs
->bulk_out_urb
= NULL
;
626 //ucs->urb_cmd_out = NULL;
627 ucs
->read_urb
= NULL
;
628 tasklet_init(&cs
->write_tasklet
,
629 &gigaset_modem_fill
, (unsigned long) cs
);
634 /* Send data from current skb to the device. */
635 static int write_modem(struct cardstate
*cs
)
639 struct bc_state
*bcs
= &cs
->bcs
[0]; /* only one channel */
640 struct usb_cardstate
*ucs
= cs
->hw
.usb
;
643 gig_dbg(DEBUG_WRITE
, "len: %d...", bcs
->tx_skb
->len
);
645 if (!bcs
->tx_skb
->len
) {
646 dev_kfree_skb_any(bcs
->tx_skb
);
651 /* Copy data to bulk out buffer and // FIXME copying not necessary
654 count
= min(bcs
->tx_skb
->len
, (unsigned) ucs
->bulk_out_size
);
655 skb_copy_from_linear_data(bcs
->tx_skb
, ucs
->bulk_out_buffer
, count
);
656 skb_pull(bcs
->tx_skb
, count
);
658 gig_dbg(DEBUG_OUTPUT
, "write_modem: send %d bytes", count
);
660 spin_lock_irqsave(&cs
->lock
, flags
);
662 usb_fill_bulk_urb(ucs
->bulk_out_urb
, ucs
->udev
,
663 usb_sndbulkpipe(ucs
->udev
,
664 ucs
->bulk_out_endpointAddr
& 0x0f),
665 ucs
->bulk_out_buffer
, count
,
666 gigaset_write_bulk_callback
, cs
);
667 ret
= usb_submit_urb(ucs
->bulk_out_urb
, GFP_ATOMIC
);
671 spin_unlock_irqrestore(&cs
->lock
, flags
);
674 dev_err(cs
->dev
, "could not submit urb (error %d)\n", -ret
);
678 if (!bcs
->tx_skb
->len
) {
679 /* skb sent completely */
680 gigaset_skb_sent(bcs
, bcs
->tx_skb
); //FIXME also, when ret<0?
682 gig_dbg(DEBUG_INTR
, "kfree skb (Adr: %lx)!",
683 (unsigned long) bcs
->tx_skb
);
684 dev_kfree_skb_any(bcs
->tx_skb
);
691 static int gigaset_probe(struct usb_interface
*interface
,
692 const struct usb_device_id
*id
)
695 struct usb_device
*udev
= interface_to_usbdev(interface
);
696 struct usb_host_interface
*hostif
= interface
->cur_altsetting
;
697 struct cardstate
*cs
= NULL
;
698 struct usb_cardstate
*ucs
= NULL
;
699 struct usb_endpoint_descriptor
*endpoint
;
702 gig_dbg(DEBUG_ANY
, "%s: Check if device matches ...", __func__
);
704 /* See if the device offered us matches what we can accept */
705 if ((le16_to_cpu(udev
->descriptor
.idVendor
) != USB_M105_VENDOR_ID
) ||
706 (le16_to_cpu(udev
->descriptor
.idProduct
) != USB_M105_PRODUCT_ID
)) {
707 gig_dbg(DEBUG_ANY
, "device ID (0x%x, 0x%x) not for me - skip",
708 le16_to_cpu(udev
->descriptor
.idVendor
),
709 le16_to_cpu(udev
->descriptor
.idProduct
));
712 if (hostif
->desc
.bInterfaceNumber
!= 0) {
713 gig_dbg(DEBUG_ANY
, "interface %d not for me - skip",
714 hostif
->desc
.bInterfaceNumber
);
717 if (hostif
->desc
.bAlternateSetting
!= 0) {
718 dev_notice(&udev
->dev
, "unsupported altsetting %d - skip",
719 hostif
->desc
.bAlternateSetting
);
722 if (hostif
->desc
.bInterfaceClass
!= 255) {
723 dev_notice(&udev
->dev
, "unsupported interface class %d - skip",
724 hostif
->desc
.bInterfaceClass
);
728 dev_info(&udev
->dev
, "%s: Device matched ... !\n", __func__
);
730 /* allocate memory for our device state and intialize it */
731 cs
= gigaset_initcs(driver
, 1, 1, 0, cidmode
, GIGASET_MODULENAME
);
736 /* save off device structure ptrs for later use */
739 ucs
->interface
= interface
;
740 cs
->dev
= &interface
->dev
;
742 /* save address of controller structure */
743 usb_set_intfdata(interface
, cs
); // dev_set_drvdata(&interface->dev, cs);
745 endpoint
= &hostif
->endpoint
[0].desc
;
747 buffer_size
= le16_to_cpu(endpoint
->wMaxPacketSize
);
748 ucs
->bulk_out_size
= buffer_size
;
749 ucs
->bulk_out_endpointAddr
= endpoint
->bEndpointAddress
;
750 ucs
->bulk_out_buffer
= kmalloc(buffer_size
, GFP_KERNEL
);
751 if (!ucs
->bulk_out_buffer
) {
752 dev_err(cs
->dev
, "Couldn't allocate bulk_out_buffer\n");
757 ucs
->bulk_out_urb
= usb_alloc_urb(0, GFP_KERNEL
);
758 if (!ucs
->bulk_out_urb
) {
759 dev_err(cs
->dev
, "Couldn't allocate bulk_out_urb\n");
764 endpoint
= &hostif
->endpoint
[1].desc
;
768 ucs
->read_urb
= usb_alloc_urb(0, GFP_KERNEL
);
769 if (!ucs
->read_urb
) {
770 dev_err(cs
->dev
, "No free urbs available\n");
774 buffer_size
= le16_to_cpu(endpoint
->wMaxPacketSize
);
775 ucs
->rcvbuf_size
= buffer_size
;
776 ucs
->int_in_endpointAddr
= endpoint
->bEndpointAddress
;
777 cs
->inbuf
[0].rcvbuf
= kmalloc(buffer_size
, GFP_KERNEL
);
778 if (!cs
->inbuf
[0].rcvbuf
) {
779 dev_err(cs
->dev
, "Couldn't allocate rcvbuf\n");
783 /* Fill the interrupt urb and send it to the core */
784 usb_fill_int_urb(ucs
->read_urb
, udev
,
786 endpoint
->bEndpointAddress
& 0x0f),
787 cs
->inbuf
[0].rcvbuf
, buffer_size
,
788 gigaset_read_int_callback
,
789 cs
->inbuf
+ 0, endpoint
->bInterval
);
791 retval
= usb_submit_urb(ucs
->read_urb
, GFP_KERNEL
);
793 dev_err(cs
->dev
, "Could not submit URB (error %d)\n", -retval
);
797 /* tell common part that the device is ready */
798 if (startmode
== SM_LOCKED
)
799 cs
->mstate
= MS_LOCKED
;
801 if (!gigaset_start(cs
)) {
802 tasklet_kill(&cs
->write_tasklet
);
803 retval
= -ENODEV
; //FIXME
809 usb_kill_urb(ucs
->read_urb
);
810 kfree(ucs
->bulk_out_buffer
);
811 usb_free_urb(ucs
->bulk_out_urb
);
812 kfree(cs
->inbuf
[0].rcvbuf
);
813 usb_free_urb(ucs
->read_urb
);
814 usb_set_intfdata(interface
, NULL
);
815 ucs
->read_urb
= ucs
->bulk_out_urb
= NULL
;
816 cs
->inbuf
[0].rcvbuf
= ucs
->bulk_out_buffer
= NULL
;
817 usb_put_dev(ucs
->udev
);
819 ucs
->interface
= NULL
;
824 static void gigaset_disconnect(struct usb_interface
*interface
)
826 struct cardstate
*cs
;
827 struct usb_cardstate
*ucs
;
829 cs
= usb_get_intfdata(interface
);
832 dev_info(cs
->dev
, "disconnecting Gigaset USB adapter\n");
834 usb_kill_urb(ucs
->read_urb
);
838 usb_set_intfdata(interface
, NULL
);
839 tasklet_kill(&cs
->write_tasklet
);
841 usb_kill_urb(ucs
->bulk_out_urb
);
843 kfree(ucs
->bulk_out_buffer
);
844 usb_free_urb(ucs
->bulk_out_urb
);
845 kfree(cs
->inbuf
[0].rcvbuf
);
846 usb_free_urb(ucs
->read_urb
);
847 ucs
->read_urb
= ucs
->bulk_out_urb
= NULL
;
848 cs
->inbuf
[0].rcvbuf
= ucs
->bulk_out_buffer
= NULL
;
850 usb_put_dev(ucs
->udev
);
851 ucs
->interface
= NULL
;
858 * This function is called before the USB connection is suspended or reset.
860 static int gigaset_suspend(struct usb_interface
*intf
, pm_message_t message
)
862 struct cardstate
*cs
= usb_get_intfdata(intf
);
865 cs
->connected
= 0; /* prevent rescheduling */
866 usb_kill_urb(cs
->hw
.usb
->read_urb
);
867 tasklet_kill(&cs
->write_tasklet
);
868 usb_kill_urb(cs
->hw
.usb
->bulk_out_urb
);
870 gig_dbg(DEBUG_SUSPEND
, "suspend complete");
875 * This function is called after the USB connection has been resumed or reset.
877 static int gigaset_resume(struct usb_interface
*intf
)
879 struct cardstate
*cs
= usb_get_intfdata(intf
);
882 /* resubmit interrupt URB */
884 rc
= usb_submit_urb(cs
->hw
.usb
->read_urb
, GFP_KERNEL
);
886 dev_err(cs
->dev
, "Could not submit read URB (error %d)\n", -rc
);
890 gig_dbg(DEBUG_SUSPEND
, "resume complete");
895 * This function is called before the USB connection is reset.
897 static int gigaset_pre_reset(struct usb_interface
*intf
)
899 /* same as suspend */
900 return gigaset_suspend(intf
, PMSG_ON
);
903 static const struct gigaset_ops ops
= {
906 gigaset_chars_in_buffer
,
908 gigaset_init_bchannel
,
909 gigaset_close_bchannel
,
915 gigaset_set_modem_ctrl
,
917 gigaset_set_line_ctrl
,
918 gigaset_m10x_send_skb
,
924 * This function is called while kernel-module is loaded
926 static int __init
usb_gigaset_init(void)
930 /* allocate memory for our driver state and intialize it */
931 if ((driver
= gigaset_initdriver(GIGASET_MINOR
, GIGASET_MINORS
,
932 GIGASET_MODULENAME
, GIGASET_DEVNAME
,
933 &ops
, THIS_MODULE
)) == NULL
)
936 /* register this driver with the USB subsystem */
937 result
= usb_register(&gigaset_usb_driver
);
939 err("usb_gigaset: usb_register failed (error %d)",
950 gigaset_freedriver(driver
);
958 * This function is called while unloading the kernel-module
960 static void __exit
usb_gigaset_exit(void)
964 gigaset_blockdriver(driver
); /* => probe will fail
965 * => no gigaset_start any more
968 /* stop all connected devices */
969 for (i
= 0; i
< driver
->minors
; i
++)
970 gigaset_shutdown(driver
->cs
+ i
);
972 /* from now on, no isdn callback should be possible */
974 /* deregister this driver with the USB subsystem */
975 usb_deregister(&gigaset_usb_driver
);
976 /* this will call the disconnect-callback */
977 /* from now on, no disconnect/probe callback should be running */
979 gigaset_freedriver(driver
);
984 module_init(usb_gigaset_init
);
985 module_exit(usb_gigaset_exit
);
987 MODULE_AUTHOR(DRIVER_AUTHOR
);
988 MODULE_DESCRIPTION(DRIVER_DESC
);
990 MODULE_LICENSE("GPL");