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 static int gigaset_probe(struct usb_interface
*interface
,
108 const struct usb_device_id
*id
);
109 static void gigaset_disconnect(struct usb_interface
*interface
);
111 static struct gigaset_driver
*driver
= NULL
;
112 static struct cardstate
*cardstate
= NULL
;
114 /* usb specific object needed to register this driver with the usb subsystem */
115 static struct usb_driver gigaset_usb_driver
= {
116 .name
= GIGASET_MODULENAME
,
117 .probe
= gigaset_probe
,
118 .disconnect
= gigaset_disconnect
,
119 .id_table
= gigaset_table
,
122 struct usb_cardstate
{
123 struct usb_device
*udev
; /* usb device pointer */
124 struct usb_interface
*interface
; /* interface for this device */
125 atomic_t busy
; /* bulk output in progress */
128 unsigned char *bulk_out_buffer
;
130 __u8 bulk_out_endpointAddr
;
131 struct urb
*bulk_out_urb
;
135 struct urb
*read_urb
;
136 __u8 int_in_endpointAddr
;
138 char bchars
[6]; /* for request 0x19 */
141 static inline unsigned tiocm_to_gigaset(unsigned state
)
143 return ((state
& TIOCM_DTR
) ? 1 : 0) | ((state
& TIOCM_RTS
) ? 2 : 0);
146 #ifdef CONFIG_GIGASET_UNDOCREQ
147 /* WARNING: EXPERIMENTAL! */
148 static int gigaset_set_modem_ctrl(struct cardstate
*cs
, unsigned old_state
,
151 struct usb_device
*udev
= cs
->hw
.usb
->udev
;
155 mask
= tiocm_to_gigaset(old_state
^ new_state
);
156 val
= tiocm_to_gigaset(new_state
);
158 gig_dbg(DEBUG_USBREQ
, "set flags 0x%02x with mask 0x%02x", val
, mask
);
159 // don't use this in an interrupt/BH
160 r
= usb_control_msg(udev
, usb_sndctrlpipe(udev
, 0), 7, 0x41,
161 (val
& 0xff) | ((mask
& 0xff) << 8), 0,
162 NULL
, 0, 2000 /* timeout? */);
169 static int set_value(struct cardstate
*cs
, u8 req
, u16 val
)
171 struct usb_device
*udev
= cs
->hw
.usb
->udev
;
174 gig_dbg(DEBUG_USBREQ
, "request %02x (%04x)",
175 (unsigned)req
, (unsigned)val
);
176 r
= usb_control_msg(udev
, usb_sndctrlpipe(udev
, 0), 0x12, 0x41,
177 0xf /*?*/, 0, NULL
, 0, 2000 /*?*/);
178 /* no idea what this does */
180 dev_err(&udev
->dev
, "error %d on request 0x12\n", -r
);
184 r
= usb_control_msg(udev
, usb_sndctrlpipe(udev
, 0), req
, 0x41,
185 val
, 0, NULL
, 0, 2000 /*?*/);
187 dev_err(&udev
->dev
, "error %d on request 0x%02x\n",
190 r2
= usb_control_msg(udev
, usb_sndctrlpipe(udev
, 0), 0x19, 0x41,
191 0, 0, cs
->hw
.usb
->bchars
, 6, 2000 /*?*/);
193 dev_err(&udev
->dev
, "error %d on request 0x19\n", -r2
);
195 return r
< 0 ? r
: (r2
< 0 ? r2
: 0);
198 /* WARNING: HIGHLY EXPERIMENTAL! */
199 // don't use this in an interrupt/BH
200 static int gigaset_baud_rate(struct cardstate
*cs
, unsigned cflag
)
209 case B300
: rate
= 300; break;
210 case B600
: rate
= 600; break;
211 case B1200
: rate
= 1200; break;
212 case B2400
: rate
= 2400; break;
213 case B4800
: rate
= 4800; break;
214 case B9600
: rate
= 9600; break;
215 case B19200
: rate
= 19200; break;
216 case B38400
: rate
= 38400; break;
217 case B57600
: rate
= 57600; break;
218 case B115200
: rate
= 115200; break;
221 dev_err(cs
->dev
, "unsupported baudrate request 0x%x,"
222 " using default of B9600\n", cflag
);
225 val
= 0x383fff / rate
+ 1;
227 return set_value(cs
, 1, val
);
230 /* WARNING: HIGHLY EXPERIMENTAL! */
231 // don't use this in an interrupt/BH
232 static int gigaset_set_line_ctrl(struct cardstate
*cs
, unsigned cflag
)
238 val
|= (cflag
& PARODD
) ? 0x10 : 0x20;
240 /* set the number of data bits */
241 switch (cflag
& CSIZE
) {
243 val
|= 5 << 8; break;
245 val
|= 6 << 8; break;
247 val
|= 7 << 8; break;
249 val
|= 8 << 8; break;
251 dev_err(cs
->dev
, "CSIZE was not CS5-CS8, using default of 8\n");
256 /* set the number of stop bits */
257 if (cflag
& CSTOPB
) {
258 if ((cflag
& CSIZE
) == CS5
)
259 val
|= 1; /* 1.5 stop bits */ //FIXME is this okay?
261 val
|= 2; /* 2 stop bits */
264 return set_value(cs
, 3, val
);
268 static int gigaset_set_modem_ctrl(struct cardstate
*cs
, unsigned old_state
,
274 static int gigaset_set_line_ctrl(struct cardstate
*cs
, unsigned cflag
)
279 static int gigaset_baud_rate(struct cardstate
*cs
, unsigned cflag
)
286 /*================================================================================================================*/
287 static int gigaset_init_bchannel(struct bc_state
*bcs
)
289 /* nothing to do for M10x */
290 gigaset_bchannel_up(bcs
);
294 static int gigaset_close_bchannel(struct bc_state
*bcs
)
296 /* nothing to do for M10x */
297 gigaset_bchannel_down(bcs
);
301 static int write_modem(struct cardstate
*cs
);
302 static int send_cb(struct cardstate
*cs
, struct cmdbuf_t
*cb
);
305 /* Write tasklet handler: Continue sending current skb, or send command, or
306 * start sending an skb from the send queue.
308 static void gigaset_modem_fill(unsigned long data
)
310 struct cardstate
*cs
= (struct cardstate
*) data
;
311 struct bc_state
*bcs
= &cs
->bcs
[0]; /* only one channel */
316 gig_dbg(DEBUG_OUTPUT
, "modem_fill");
318 if (atomic_read(&cs
->hw
.usb
->busy
)) {
319 gig_dbg(DEBUG_OUTPUT
, "modem_fill: busy");
325 if (!bcs
->tx_skb
) { /* no skb is being sent */
326 spin_lock_irqsave(&cs
->cmdlock
, flags
);
328 spin_unlock_irqrestore(&cs
->cmdlock
, flags
);
329 if (cb
) { /* commands to send? */
330 gig_dbg(DEBUG_OUTPUT
, "modem_fill: cb");
331 if (send_cb(cs
, cb
) < 0) {
332 gig_dbg(DEBUG_OUTPUT
,
333 "modem_fill: send_cb failed");
334 again
= 1; /* no callback will be
337 } else { /* skbs to send? */
338 bcs
->tx_skb
= skb_dequeue(&bcs
->squeue
);
341 "Dequeued skb (Adr: %lx)!",
342 (unsigned long) bcs
->tx_skb
);
347 gig_dbg(DEBUG_OUTPUT
, "modem_fill: tx_skb");
348 if (write_modem(cs
) < 0) {
349 gig_dbg(DEBUG_OUTPUT
,
350 "modem_fill: write_modem failed");
351 // FIXME should we tell the LL?
352 again
= 1; /* no callback will be called! */
359 * gigaset_read_int_callback
361 * It is called if the data was received from the device.
363 static void gigaset_read_int_callback(struct urb
*urb
)
365 struct inbuf_t
*inbuf
= urb
->context
;
366 struct cardstate
*cs
= inbuf
->cs
;
374 if (!cs
->connected
) {
375 err("%s: disconnected", __func__
); /* should never happen */
379 numbytes
= urb
->actual_length
;
385 "%s: There was no leading 0, but 0x%02x!\n",
386 __func__
, (unsigned) *src
);
387 ++src
; /* skip leading 0x00 */
389 if (gigaset_fill_inbuf(inbuf
, src
, numbytes
)) {
390 gig_dbg(DEBUG_INTR
, "%s-->BH", __func__
);
391 gigaset_schedule_event(inbuf
->cs
);
394 gig_dbg(DEBUG_INTR
, "Received zero block length");
397 /* The urb might have been killed. */
398 gig_dbg(DEBUG_ANY
, "%s - nonzero read bulk status received: %d",
399 __func__
, urb
->status
);
400 if (urb
->status
!= -ENOENT
) { /* not killed */
401 if (!cs
->connected
) {
402 err("%s: disconnected", __func__
); /* should never happen */
410 spin_lock_irqsave(&cs
->lock
, flags
);
411 r
= cs
->connected
? usb_submit_urb(urb
, GFP_ATOMIC
) : -ENODEV
;
412 spin_unlock_irqrestore(&cs
->lock
, flags
);
414 dev_err(cs
->dev
, "error %d when resubmitting urb.\n",
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
;
427 dev_err(cs
->dev
, "bulk transfer failed (status %d)\n",
429 /* That's all we can do. Communication problems
430 are handled by timeouts or network protocols. */
432 spin_lock_irqsave(&cs
->lock
, flags
);
433 if (!cs
->connected
) {
434 err("%s: not connected", __func__
);
436 atomic_set(&cs
->hw
.usb
->busy
, 0);
437 tasklet_schedule(&cs
->write_tasklet
);
439 spin_unlock_irqrestore(&cs
->lock
, flags
);
442 static int send_cb(struct cardstate
*cs
, struct cmdbuf_t
*cb
)
444 struct cmdbuf_t
*tcb
;
447 int status
= -ENOENT
; // FIXME
448 struct usb_cardstate
*ucs
= cs
->hw
.usb
;
454 spin_lock_irqsave(&cs
->cmdlock
, flags
);
455 cs
->cmdbytes
-= cs
->curlen
;
456 gig_dbg(DEBUG_OUTPUT
, "send_cb: sent %u bytes, %u left",
457 cs
->curlen
, cs
->cmdbytes
);
458 cs
->cmdbuf
= cb
= cb
->next
;
461 cs
->curlen
= cb
->len
;
463 cs
->lastcmdbuf
= NULL
;
466 spin_unlock_irqrestore(&cs
->cmdlock
, flags
);
468 if (tcb
->wake_tasklet
)
469 tasklet_schedule(tcb
->wake_tasklet
);
473 count
= min(cb
->len
, ucs
->bulk_out_size
);
474 gig_dbg(DEBUG_OUTPUT
, "send_cb: send %d bytes", count
);
476 usb_fill_bulk_urb(ucs
->bulk_out_urb
, ucs
->udev
,
477 usb_sndbulkpipe(ucs
->udev
,
478 ucs
->bulk_out_endpointAddr
& 0x0f),
479 cb
->buf
+ cb
->offset
, count
,
480 gigaset_write_bulk_callback
, cs
);
484 atomic_set(&ucs
->busy
, 1);
486 spin_lock_irqsave(&cs
->lock
, flags
);
487 status
= cs
->connected
? usb_submit_urb(ucs
->bulk_out_urb
, GFP_ATOMIC
) : -ENODEV
;
488 spin_unlock_irqrestore(&cs
->lock
, flags
);
491 atomic_set(&ucs
->busy
, 0);
492 err("could not submit urb (error %d)\n",
494 cb
->len
= 0; /* skip urb => remove cb+wakeup
495 in next loop cycle */
498 } while (cb
&& status
); /* next command on error */
503 /* Send command to device. */
504 static int gigaset_write_cmd(struct cardstate
*cs
, const unsigned char *buf
,
505 int len
, struct tasklet_struct
*wake_tasklet
)
510 gigaset_dbg_buffer(atomic_read(&cs
->mstate
) != MS_LOCKED
?
511 DEBUG_TRANSCMD
: DEBUG_LOCKCMD
,
512 "CMD Transmit", len
, buf
);
517 if (!(cb
= kmalloc(sizeof(struct cmdbuf_t
) + len
, GFP_ATOMIC
))) {
518 dev_err(cs
->dev
, "%s: out of memory\n", __func__
);
522 memcpy(cb
->buf
, buf
, len
);
526 cb
->wake_tasklet
= wake_tasklet
;
528 spin_lock_irqsave(&cs
->cmdlock
, flags
);
529 cb
->prev
= cs
->lastcmdbuf
;
531 cs
->lastcmdbuf
->next
= cb
;
538 spin_unlock_irqrestore(&cs
->cmdlock
, flags
);
540 spin_lock_irqsave(&cs
->lock
, flags
);
542 tasklet_schedule(&cs
->write_tasklet
);
543 spin_unlock_irqrestore(&cs
->lock
, flags
);
547 static int gigaset_write_room(struct cardstate
*cs
)
552 spin_lock_irqsave(&cs
->cmdlock
, flags
);
553 bytes
= cs
->cmdbytes
;
554 spin_unlock_irqrestore(&cs
->cmdlock
, flags
);
556 return bytes
< IF_WRITEBUF
? IF_WRITEBUF
- bytes
: 0;
559 static int gigaset_chars_in_buffer(struct cardstate
*cs
)
564 static int gigaset_brkchars(struct cardstate
*cs
, const unsigned char buf
[6])
566 #ifdef CONFIG_GIGASET_UNDOCREQ
567 struct usb_device
*udev
= cs
->hw
.usb
->udev
;
569 gigaset_dbg_buffer(DEBUG_USBREQ
, "brkchars", 6, buf
);
570 memcpy(cs
->hw
.usb
->bchars
, buf
, 6);
571 return usb_control_msg(udev
, usb_sndctrlpipe(udev
, 0), 0x19, 0x41,
572 0, 0, &buf
, 6, 2000);
578 static int gigaset_freebcshw(struct bc_state
*bcs
)
584 /* Initialize the b-channel structure */
585 static int gigaset_initbcshw(struct bc_state
*bcs
)
592 static void gigaset_reinitbcshw(struct bc_state
*bcs
)
594 /* nothing to do for M10x */
597 static void gigaset_freecshw(struct cardstate
*cs
)
599 tasklet_kill(&cs
->write_tasklet
);
603 static int gigaset_initcshw(struct cardstate
*cs
)
605 struct usb_cardstate
*ucs
;
608 kmalloc(sizeof(struct usb_cardstate
), GFP_KERNEL
);
616 ucs
->bchars
[4] = 0x11;
617 ucs
->bchars
[5] = 0x13;
618 ucs
->bulk_out_buffer
= NULL
;
619 ucs
->bulk_out_urb
= NULL
;
620 //ucs->urb_cmd_out = NULL;
621 ucs
->read_urb
= NULL
;
622 tasklet_init(&cs
->write_tasklet
,
623 &gigaset_modem_fill
, (unsigned long) cs
);
628 /* Send data from current skb to the device. */
629 static int write_modem(struct cardstate
*cs
)
633 struct bc_state
*bcs
= &cs
->bcs
[0]; /* only one channel */
634 struct usb_cardstate
*ucs
= cs
->hw
.usb
;
637 gig_dbg(DEBUG_WRITE
, "len: %d...", bcs
->tx_skb
->len
);
639 if (!bcs
->tx_skb
->len
) {
640 dev_kfree_skb_any(bcs
->tx_skb
);
645 /* Copy data to bulk out buffer and // FIXME copying not necessary
648 count
= min(bcs
->tx_skb
->len
, (unsigned) ucs
->bulk_out_size
);
649 skb_copy_from_linear_data(bcs
->tx_skb
, ucs
->bulk_out_buffer
, count
);
650 skb_pull(bcs
->tx_skb
, count
);
651 atomic_set(&ucs
->busy
, 1);
652 gig_dbg(DEBUG_OUTPUT
, "write_modem: send %d bytes", count
);
654 spin_lock_irqsave(&cs
->lock
, flags
);
656 usb_fill_bulk_urb(ucs
->bulk_out_urb
, ucs
->udev
,
657 usb_sndbulkpipe(ucs
->udev
,
658 ucs
->bulk_out_endpointAddr
& 0x0f),
659 ucs
->bulk_out_buffer
, count
,
660 gigaset_write_bulk_callback
, cs
);
661 ret
= usb_submit_urb(ucs
->bulk_out_urb
, GFP_ATOMIC
);
665 spin_unlock_irqrestore(&cs
->lock
, flags
);
668 err("could not submit urb (error %d)\n", -ret
);
669 atomic_set(&ucs
->busy
, 0);
672 if (!bcs
->tx_skb
->len
) {
673 /* skb sent completely */
674 gigaset_skb_sent(bcs
, bcs
->tx_skb
); //FIXME also, when ret<0?
676 gig_dbg(DEBUG_INTR
, "kfree skb (Adr: %lx)!",
677 (unsigned long) bcs
->tx_skb
);
678 dev_kfree_skb_any(bcs
->tx_skb
);
685 static int gigaset_probe(struct usb_interface
*interface
,
686 const struct usb_device_id
*id
)
689 struct usb_device
*udev
= interface_to_usbdev(interface
);
691 struct usb_host_interface
*hostif
;
692 struct cardstate
*cs
= NULL
;
693 struct usb_cardstate
*ucs
= NULL
;
694 struct usb_endpoint_descriptor
*endpoint
;
699 "%s: Check if device matches .. (Vendor: 0x%x, Product: 0x%x)",
700 __func__
, le16_to_cpu(udev
->descriptor
.idVendor
),
701 le16_to_cpu(udev
->descriptor
.idProduct
));
703 retval
= -ENODEV
; //FIXME
705 /* See if the device offered us matches what we can accept */
706 if ((le16_to_cpu(udev
->descriptor
.idVendor
) != USB_M105_VENDOR_ID
) ||
707 (le16_to_cpu(udev
->descriptor
.idProduct
) != USB_M105_PRODUCT_ID
))
710 /* this starts to become ascii art... */
711 hostif
= interface
->cur_altsetting
;
712 alt
= hostif
->desc
.bAlternateSetting
;
713 ifnum
= hostif
->desc
.bInterfaceNumber
; // FIXME ?
715 if (alt
!= 0 || ifnum
!= 0) {
716 dev_warn(&udev
->dev
, "ifnum %d, alt %d\n", ifnum
, alt
);
720 /* Reject application specific intefaces
723 if (hostif
->desc
.bInterfaceClass
!= 255) {
725 "%s: Device matched but iface_desc[%d]->bInterfaceClass==%d!\n",
726 __func__
, ifnum
, hostif
->desc
.bInterfaceClass
);
730 dev_info(&udev
->dev
, "%s: Device matched ... !\n", __func__
);
732 cs
= gigaset_getunassignedcs(driver
);
734 dev_warn(&udev
->dev
, "no free cardstate\n");
739 /* save off device structure ptrs for later use */
742 ucs
->interface
= interface
;
743 cs
->dev
= &interface
->dev
;
745 /* save address of controller structure */
746 usb_set_intfdata(interface
, cs
); // dev_set_drvdata(&interface->dev, cs);
748 endpoint
= &hostif
->endpoint
[0].desc
;
750 buffer_size
= le16_to_cpu(endpoint
->wMaxPacketSize
);
751 ucs
->bulk_out_size
= buffer_size
;
752 ucs
->bulk_out_endpointAddr
= endpoint
->bEndpointAddress
;
753 ucs
->bulk_out_buffer
= kmalloc(buffer_size
, GFP_KERNEL
);
754 if (!ucs
->bulk_out_buffer
) {
755 dev_err(cs
->dev
, "Couldn't allocate bulk_out_buffer\n");
760 ucs
->bulk_out_urb
= usb_alloc_urb(0, GFP_KERNEL
);
761 if (!ucs
->bulk_out_urb
) {
762 dev_err(cs
->dev
, "Couldn't allocate bulk_out_urb\n");
767 endpoint
= &hostif
->endpoint
[1].desc
;
769 atomic_set(&ucs
->busy
, 0);
771 ucs
->read_urb
= usb_alloc_urb(0, GFP_KERNEL
);
772 if (!ucs
->read_urb
) {
773 dev_err(cs
->dev
, "No free urbs available\n");
777 buffer_size
= le16_to_cpu(endpoint
->wMaxPacketSize
);
778 ucs
->rcvbuf_size
= buffer_size
;
779 ucs
->int_in_endpointAddr
= endpoint
->bEndpointAddress
;
780 cs
->inbuf
[0].rcvbuf
= kmalloc(buffer_size
, GFP_KERNEL
);
781 if (!cs
->inbuf
[0].rcvbuf
) {
782 dev_err(cs
->dev
, "Couldn't allocate rcvbuf\n");
786 /* Fill the interrupt urb and send it to the core */
787 usb_fill_int_urb(ucs
->read_urb
, udev
,
789 endpoint
->bEndpointAddress
& 0x0f),
790 cs
->inbuf
[0].rcvbuf
, buffer_size
,
791 gigaset_read_int_callback
,
792 cs
->inbuf
+ 0, endpoint
->bInterval
);
794 retval
= usb_submit_urb(ucs
->read_urb
, GFP_KERNEL
);
796 dev_err(cs
->dev
, "Could not submit URB (error %d)\n", -retval
);
800 /* tell common part that the device is ready */
801 if (startmode
== SM_LOCKED
)
802 atomic_set(&cs
->mstate
, MS_LOCKED
);
804 if (!gigaset_start(cs
)) {
805 tasklet_kill(&cs
->write_tasklet
);
806 retval
= -ENODEV
; //FIXME
812 usb_kill_urb(ucs
->read_urb
);
813 kfree(ucs
->bulk_out_buffer
);
814 usb_free_urb(ucs
->bulk_out_urb
);
815 kfree(cs
->inbuf
[0].rcvbuf
);
816 usb_free_urb(ucs
->read_urb
);
817 usb_set_intfdata(interface
, NULL
);
818 ucs
->read_urb
= ucs
->bulk_out_urb
= NULL
;
819 cs
->inbuf
[0].rcvbuf
= ucs
->bulk_out_buffer
= NULL
;
820 usb_put_dev(ucs
->udev
);
822 ucs
->interface
= NULL
;
823 gigaset_unassign(cs
);
827 static void gigaset_disconnect(struct usb_interface
*interface
)
829 struct cardstate
*cs
;
830 struct usb_cardstate
*ucs
;
832 cs
= usb_get_intfdata(interface
);
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
); /* FIXME: only if active? */
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
;
854 gigaset_unassign(cs
);
857 static const struct gigaset_ops ops
= {
860 gigaset_chars_in_buffer
,
862 gigaset_init_bchannel
,
863 gigaset_close_bchannel
,
869 gigaset_set_modem_ctrl
,
871 gigaset_set_line_ctrl
,
872 gigaset_m10x_send_skb
,
878 * This function is called while kernel-module is loaded
880 static int __init
usb_gigaset_init(void)
884 /* allocate memory for our driver state and intialize it */
885 if ((driver
= gigaset_initdriver(GIGASET_MINOR
, GIGASET_MINORS
,
886 GIGASET_MODULENAME
, GIGASET_DEVNAME
,
887 &ops
, THIS_MODULE
)) == NULL
)
890 /* allocate memory for our device state and intialize it */
891 cardstate
= gigaset_initcs(driver
, 1, 1, 0, cidmode
, GIGASET_MODULENAME
);
895 /* register this driver with the USB subsystem */
896 result
= usb_register(&gigaset_usb_driver
);
898 err("usb_gigaset: usb_register failed (error %d)",
907 error
: if (cardstate
)
908 gigaset_freecs(cardstate
);
911 gigaset_freedriver(driver
);
919 * This function is called while unloading the kernel-module
921 static void __exit
usb_gigaset_exit(void)
923 gigaset_blockdriver(driver
); /* => probe will fail
924 * => no gigaset_start any more
927 gigaset_shutdown(cardstate
);
928 /* from now on, no isdn callback should be possible */
930 /* deregister this driver with the USB subsystem */
931 usb_deregister(&gigaset_usb_driver
);
932 /* this will call the disconnect-callback */
933 /* from now on, no disconnect/probe callback should be running */
935 gigaset_freecs(cardstate
);
937 gigaset_freedriver(driver
);
942 module_init(usb_gigaset_init
);
943 module_exit(usb_gigaset_exit
);
945 MODULE_AUTHOR(DRIVER_AUTHOR
);
946 MODULE_DESCRIPTION(DRIVER_DESC
);
948 MODULE_LICENSE("GPL");