4 * $Id: hfc_usb.c,v 2.3.2.13 2006/02/17 17:17:22 mbachem Exp $
6 * modular HiSax ISDN driver for Colognechip HFC-S USB chip
8 * Authors : Peter Sprenger (sprenger@moving-bytes.de)
9 * Martin Bachem (info@colognechip.com)
11 * based on the first hfc_usb driver of
12 * Werner Cornelius (werner@isdn-development.de)
14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation; either version 2, or (at your option)
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
28 * See Version Histroy at the bottom of this file
32 #include <linux/types.h>
33 #include <linux/stddef.h>
34 #include <linux/timer.h>
35 #include <linux/init.h>
36 #include <linux/module.h>
37 #include <linux/kernel_stat.h>
38 #include <linux/usb.h>
39 #include <linux/kernel.h>
44 static const char *hfcusb_revision =
45 "$Revision: 2.3.2.13 $ $Date: 2006/02/17 17:17:22 $ ";
47 /* Hisax debug support
48 * use "modprobe debug=x" where x is bitfield of USB_DBG & ISDN_DBG
50 #ifdef CONFIG_HISAX_DEBUG
51 #include <linux/moduleparam.h>
52 #define __debug_variable hfc_debug
53 #include "hisax_debug.h"
55 module_param(debug, uint, 0);
59 /* private vendor specific data */
61 __u8 led_scheme; // led display scheme
62 signed short led_bits[8]; // array of 8 possible LED bitmask settings
63 char *vend_name; // device name
66 /****************************************/
67 /* data defining the devices to be used */
68 /****************************************/
69 static struct usb_device_id hfcusb_idtab[] = {
71 USB_DEVICE(0x0959, 0x2bd0),
72 .driver_info = (unsigned long) &((hfcsusb_vdata)
73 {LED_OFF, {4, 0, 2, 1},
74 "ISDN USB TA (Cologne Chip HFC-S USB based)"}),
77 USB_DEVICE(0x0675, 0x1688),
78 .driver_info = (unsigned long) &((hfcsusb_vdata)
79 {LED_SCHEME1, {1, 2, 0, 0},
80 "DrayTek miniVigor 128 USB ISDN TA"}),
83 USB_DEVICE(0x07b0, 0x0007),
84 .driver_info = (unsigned long) &((hfcsusb_vdata)
85 {LED_SCHEME1, {0x80, -64, -32, -16},
86 "Billion tiny USB ISDN TA 128"}),
89 USB_DEVICE(0x0742, 0x2008),
90 .driver_info = (unsigned long) &((hfcsusb_vdata)
91 {LED_SCHEME1, {4, 0, 2, 1},
95 USB_DEVICE(0x0742, 0x2009),
96 .driver_info = (unsigned long) &((hfcsusb_vdata)
97 {LED_SCHEME1, {4, 0, 2, 1},
98 "Aceex USB ISDN TA"}),
101 USB_DEVICE(0x0742, 0x200A),
102 .driver_info = (unsigned long) &((hfcsusb_vdata)
103 {LED_SCHEME1, {4, 0, 2, 1},
107 USB_DEVICE(0x08e3, 0x0301),
108 .driver_info = (unsigned long) &((hfcsusb_vdata)
109 {LED_SCHEME1, {2, 0, 1, 4},
113 USB_DEVICE(0x07fa, 0x0846),
114 .driver_info = (unsigned long) &((hfcsusb_vdata)
115 {LED_SCHEME1, {0x80, -64, -32, -16},
116 "Bewan Modem RNIS USB"}),
119 USB_DEVICE(0x07fa, 0x0847),
120 .driver_info = (unsigned long) &((hfcsusb_vdata)
121 {LED_SCHEME1, {0x80, -64, -32, -16},
122 "Djinn Numeris USB"}),
125 USB_DEVICE(0x07b0, 0x0006),
126 .driver_info = (unsigned long) &((hfcsusb_vdata)
127 {LED_SCHEME1, {0x80, -64, -32, -16},
133 /***************************************************************/
134 /* structure defining input+output fifos (interrupt/bulk mode) */
135 /***************************************************************/
136 struct usb_fifo; /* forward definition */
137 typedef struct iso_urb_struct {
139 __u8 buffer[ISO_BUFFER_SIZE]; /* buffer incoming/outgoing data */
140 struct usb_fifo *owner_fifo; /* pointer to owner fifo */
144 struct hfcusb_data; /* forward definition */
145 typedef struct usb_fifo {
146 int fifonum; /* fifo index attached to this structure */
147 int active; /* fifo is currently active */
148 struct hfcusb_data *hfc; /* pointer to main structure */
149 int pipe; /* address of endpoint */
150 __u8 usb_packet_maxlen; /* maximum length for usb transfer */
151 unsigned int max_size; /* maximum size of receive/send packet */
152 __u8 intervall; /* interrupt interval */
153 struct sk_buff *skbuff; /* actual used buffer */
154 struct urb *urb; /* transfer structure for usb routines */
155 __u8 buffer[128]; /* buffer incoming/outgoing data */
156 int bit_line; /* how much bits are in the fifo? */
158 volatile __u8 usb_transfer_mode; /* switched between ISO and INT */
159 iso_urb_struct iso[2]; /* need two urbs to have one always for pending */
160 struct hisax_if *hif; /* hisax interface */
161 int delete_flg; /* only delete skbuff once */
162 int last_urblen; /* remember length of last packet */
166 /*********************************************/
167 /* structure holding all data for one device */
168 /*********************************************/
169 typedef struct hfcusb_data {
170 /* HiSax Interface for loadable Layer1 drivers */
171 struct hisax_d_if d_if; /* see hisax_if.h */
172 struct hisax_b_if b_if[2]; /* see hisax_if.h */
175 struct usb_device *dev; /* our device */
176 int if_used; /* used interface number */
177 int alt_used; /* used alternate config */
178 int ctrl_paksize; /* control pipe packet size */
179 int ctrl_in_pipe, ctrl_out_pipe; /* handles for control pipe */
180 int cfg_used; /* configuration index used */
181 int vend_idx; /* vendor found */
182 int b_mode[2]; /* B-channel mode */
183 int l1_activated; /* layer 1 activated */
184 int disc_flag; /* 'true' if device was disonnected to avoid some USB actions */
185 int packet_size, iso_packet_size;
187 /* control pipe background handling */
188 ctrl_buft ctrl_buff[HFC_CTRL_BUFSIZE]; /* buffer holding queued data */
189 volatile int ctrl_in_idx, ctrl_out_idx, ctrl_cnt; /* input/output pointer + count */
190 struct urb *ctrl_urb; /* transfer structure for control channel */
192 struct usb_ctrlrequest ctrl_write; /* buffer for control write request */
193 struct usb_ctrlrequest ctrl_read; /* same for read request */
195 __u8 old_led_state, led_state, led_new_data, led_b_active;
197 volatile __u8 threshold_mask; /* threshold actually reported */
198 volatile __u8 bch_enables; /* or mask for sctrl_r and sctrl register values */
200 usb_fifo fifos[HFCUSB_NUM_FIFOS]; /* structure holding all fifo data */
202 volatile __u8 l1_state; /* actual l1 state */
203 struct timer_list t3_timer; /* timer 3 for activation/deactivation */
204 struct timer_list t4_timer; /* timer 4 for activation/deactivation */
208 static void collect_rx_frame(usb_fifo * fifo, __u8 * data, int len,
212 static inline const char *
213 symbolic(struct hfcusb_symbolic_list list[], const int num)
216 for (i = 0; list[i].name != NULL; i++)
217 if (list[i].num == num)
218 return (list[i].name);
219 return "<unknown ERROR>";
223 /******************************************************/
224 /* start next background transfer for control channel */
225 /******************************************************/
227 ctrl_start_transfer(hfcusb_data * hfc)
230 hfc->ctrl_urb->pipe = hfc->ctrl_out_pipe;
231 hfc->ctrl_urb->setup_packet = (u_char *) & hfc->ctrl_write;
232 hfc->ctrl_urb->transfer_buffer = NULL;
233 hfc->ctrl_urb->transfer_buffer_length = 0;
234 hfc->ctrl_write.wIndex =
235 cpu_to_le16(hfc->ctrl_buff[hfc->ctrl_out_idx].hfc_reg);
236 hfc->ctrl_write.wValue =
237 cpu_to_le16(hfc->ctrl_buff[hfc->ctrl_out_idx].reg_val);
239 usb_submit_urb(hfc->ctrl_urb, GFP_ATOMIC); /* start transfer */
241 } /* ctrl_start_transfer */
243 /************************************/
244 /* queue a control transfer request */
245 /* return 0 on success. */
246 /************************************/
248 queue_control_request(hfcusb_data * hfc, __u8 reg, __u8 val, int action)
252 if (hfc->ctrl_cnt >= HFC_CTRL_BUFSIZE)
253 return (1); /* no space left */
254 buf = &hfc->ctrl_buff[hfc->ctrl_in_idx]; /* pointer to new index */
257 buf->action = action;
258 if (++hfc->ctrl_in_idx >= HFC_CTRL_BUFSIZE)
259 hfc->ctrl_in_idx = 0; /* pointer wrap */
260 if (++hfc->ctrl_cnt == 1)
261 ctrl_start_transfer(hfc);
263 } /* queue_control_request */
266 control_action_handler(hfcusb_data * hfc, int reg, int val, int action)
269 return (1); /* no action defined */
273 /***************************************************************/
274 /* control completion routine handling background control cmds */
275 /***************************************************************/
277 ctrl_complete(struct urb *urb)
279 hfcusb_data *hfc = (hfcusb_data *) urb->context;
284 buf = &hfc->ctrl_buff[hfc->ctrl_out_idx];
285 control_action_handler(hfc, buf->hfc_reg, buf->reg_val,
288 hfc->ctrl_cnt--; /* decrement actual count */
289 if (++hfc->ctrl_out_idx >= HFC_CTRL_BUFSIZE)
290 hfc->ctrl_out_idx = 0; /* pointer wrap */
292 ctrl_start_transfer(hfc); /* start next transfer */
294 } /* ctrl_complete */
296 /***************************************************/
297 /* write led data to auxport & invert if necessary */
298 /***************************************************/
300 write_led(hfcusb_data * hfc, __u8 led_state)
302 if (led_state != hfc->old_led_state) {
303 hfc->old_led_state = led_state;
304 queue_control_request(hfc, HFCUSB_P_DATA, led_state, 1);
308 /**************************/
309 /* handle LED bits */
310 /**************************/
312 set_led_bit(hfcusb_data * hfc, signed short led_bits, int unset)
316 hfc->led_state |= abs(led_bits);
318 hfc->led_state &= ~led_bits;
321 hfc->led_state &= ~abs(led_bits);
323 hfc->led_state |= led_bits;
327 /**************************/
328 /* handle LED requests */
329 /**************************/
331 handle_led(hfcusb_data * hfc, int event)
333 hfcsusb_vdata *driver_info =
334 (hfcsusb_vdata *) hfcusb_idtab[hfc->vend_idx].driver_info;
336 /* if no scheme -> no LED action */
337 if (driver_info->led_scheme == LED_OFF)
342 set_led_bit(hfc, driver_info->led_bits[0],
344 set_led_bit(hfc, driver_info->led_bits[1],
346 set_led_bit(hfc, driver_info->led_bits[2],
348 set_led_bit(hfc, driver_info->led_bits[3],
351 case LED_POWER_OFF: /* no Power off handling */
354 set_led_bit(hfc, driver_info->led_bits[1],
358 set_led_bit(hfc, driver_info->led_bits[1],
362 set_led_bit(hfc, driver_info->led_bits[2],
366 set_led_bit(hfc, driver_info->led_bits[2],
370 set_led_bit(hfc, driver_info->led_bits[3],
374 set_led_bit(hfc, driver_info->led_bits[3],
378 write_led(hfc, hfc->led_state);
381 /********************************/
382 /* called when timer t3 expires */
383 /********************************/
385 l1_timer_expire_t3(hfcusb_data * hfc)
387 hfc->d_if.ifc.l1l2(&hfc->d_if.ifc, PH_DEACTIVATE | INDICATION,
389 #ifdef CONFIG_HISAX_DEBUG
391 "HFC-S USB: PH_DEACTIVATE | INDICATION sent (T3 expire)");
393 hfc->l1_activated = false;
394 handle_led(hfc, LED_S0_OFF);
396 queue_control_request(hfc, HFCUSB_STATES, 0x10, 1);
397 queue_control_request(hfc, HFCUSB_STATES, 3, 1);
400 /********************************/
401 /* called when timer t4 expires */
402 /********************************/
404 l1_timer_expire_t4(hfcusb_data * hfc)
406 hfc->d_if.ifc.l1l2(&hfc->d_if.ifc, PH_DEACTIVATE | INDICATION,
408 #ifdef CONFIG_HISAX_DEBUG
410 "HFC-S USB: PH_DEACTIVATE | INDICATION sent (T4 expire)");
412 hfc->l1_activated = false;
413 handle_led(hfc, LED_S0_OFF);
416 /*****************************/
417 /* handle S0 state changes */
418 /*****************************/
420 state_handler(hfcusb_data * hfc, __u8 state)
424 old_state = hfc->l1_state;
425 if (state == old_state || state < 1 || state > 8)
428 #ifdef CONFIG_HISAX_DEBUG
429 DBG(ISDN_DBG, "HFC-S USB: new S0 state:%d old_state:%d", state,
432 if (state < 4 || state == 7 || state == 8) {
433 if (timer_pending(&hfc->t3_timer))
434 del_timer(&hfc->t3_timer);
435 #ifdef CONFIG_HISAX_DEBUG
436 DBG(ISDN_DBG, "HFC-S USB: T3 deactivated");
440 if (timer_pending(&hfc->t4_timer))
441 del_timer(&hfc->t4_timer);
442 #ifdef CONFIG_HISAX_DEBUG
443 DBG(ISDN_DBG, "HFC-S USB: T4 deactivated");
447 if (state == 7 && !hfc->l1_activated) {
448 hfc->d_if.ifc.l1l2(&hfc->d_if.ifc,
449 PH_ACTIVATE | INDICATION, NULL);
450 #ifdef CONFIG_HISAX_DEBUG
451 DBG(ISDN_DBG, "HFC-S USB: PH_ACTIVATE | INDICATION sent");
453 hfc->l1_activated = true;
454 handle_led(hfc, LED_S0_ON);
455 } else if (state <= 3 /* && activated */ ) {
456 if (old_state == 7 || old_state == 8) {
457 #ifdef CONFIG_HISAX_DEBUG
458 DBG(ISDN_DBG, "HFC-S USB: T4 activated");
460 if (!timer_pending(&hfc->t4_timer)) {
461 hfc->t4_timer.expires =
462 jiffies + (HFC_TIMER_T4 * HZ) / 1000;
463 add_timer(&hfc->t4_timer);
466 hfc->d_if.ifc.l1l2(&hfc->d_if.ifc,
467 PH_DEACTIVATE | INDICATION,
469 #ifdef CONFIG_HISAX_DEBUG
471 "HFC-S USB: PH_DEACTIVATE | INDICATION sent");
473 hfc->l1_activated = false;
474 handle_led(hfc, LED_S0_OFF);
477 hfc->l1_state = state;
480 /* prepare iso urb */
482 fill_isoc_urb(struct urb *urb, struct usb_device *dev, unsigned int pipe,
483 void *buf, int num_packets, int packet_size, int interval,
484 usb_complete_t complete, void *context)
490 urb->complete = complete;
491 urb->number_of_packets = num_packets;
492 urb->transfer_buffer_length = packet_size * num_packets;
493 urb->context = context;
494 urb->transfer_buffer = buf;
495 urb->transfer_flags = URB_ISO_ASAP;
496 urb->actual_length = 0;
497 urb->interval = interval;
498 for (k = 0; k < num_packets; k++) {
499 urb->iso_frame_desc[k].offset = packet_size * k;
500 urb->iso_frame_desc[k].length = packet_size;
501 urb->iso_frame_desc[k].actual_length = 0;
505 /* allocs urbs and start isoc transfer with two pending urbs to avoid
506 gaps in the transfer chain */
508 start_isoc_chain(usb_fifo * fifo, int num_packets_per_urb,
509 usb_complete_t complete, int packet_size)
513 printk(KERN_INFO "HFC-S USB: starting ISO-chain for Fifo %i\n",
516 /* allocate Memory for Iso out Urbs */
517 for (i = 0; i < 2; i++) {
518 if (!(fifo->iso[i].purb)) {
520 usb_alloc_urb(num_packets_per_urb, GFP_KERNEL);
521 if (!(fifo->iso[i].purb)) {
523 "alloc urb for fifo %i failed!!!",
526 fifo->iso[i].owner_fifo = (struct usb_fifo *) fifo;
528 /* Init the first iso */
529 if (ISO_BUFFER_SIZE >=
530 (fifo->usb_packet_maxlen *
531 num_packets_per_urb)) {
532 fill_isoc_urb(fifo->iso[i].purb,
533 fifo->hfc->dev, fifo->pipe,
536 fifo->usb_packet_maxlen,
537 fifo->intervall, complete,
539 memset(fifo->iso[i].buffer, 0,
540 sizeof(fifo->iso[i].buffer));
541 /* defining packet delimeters in fifo->buffer */
542 for (k = 0; k < num_packets_per_urb; k++) {
544 iso_frame_desc[k].offset =
547 iso_frame_desc[k].length =
552 "HFC-S USB: ISO Buffer size to small!\n");
555 fifo->bit_line = BITLINE_INF;
557 errcode = usb_submit_urb(fifo->iso[i].purb, GFP_KERNEL);
558 fifo->active = (errcode >= 0) ? 1 : 0;
560 printk(KERN_INFO "HFC-S USB: %s URB nr:%d\n",
561 symbolic(urb_errlist, errcode), i);
564 return (fifo->active);
567 /* stops running iso chain and frees their pending urbs */
569 stop_isoc_chain(usb_fifo * fifo)
573 for (i = 0; i < 2; i++) {
574 if (fifo->iso[i].purb) {
575 #ifdef CONFIG_HISAX_DEBUG
577 "HFC-S USB: Stopping iso chain for fifo %i.%i",
580 usb_kill_urb(fifo->iso[i].purb);
581 usb_free_urb(fifo->iso[i].purb);
582 fifo->iso[i].purb = NULL;
585 usb_kill_urb(fifo->urb);
586 usb_free_urb(fifo->urb);
591 /* defines how much ISO packets are handled in one URB */
592 static int iso_packets[8] =
593 { ISOC_PACKETS_B, ISOC_PACKETS_B, ISOC_PACKETS_B, ISOC_PACKETS_B,
594 ISOC_PACKETS_D, ISOC_PACKETS_D, ISOC_PACKETS_D, ISOC_PACKETS_D
597 /*****************************************************/
598 /* transmit completion routine for all ISO tx fifos */
599 /*****************************************************/
601 tx_iso_complete(struct urb *urb)
603 iso_urb_struct *context_iso_urb = (iso_urb_struct *) urb->context;
604 usb_fifo *fifo = context_iso_urb->owner_fifo;
605 hfcusb_data *hfc = fifo->hfc;
606 int k, tx_offset, num_isoc_packets, sink, len, current_len,
608 int frame_complete, transp_mode, fifon, status;
610 __u8 threshtable[8] = { 1, 2, 4, 8, 0x10, 0x20, 0x40, 0x80 };
612 fifon = fifo->fifonum;
613 status = urb->status;
617 if (fifo->active && !status) {
619 if (fifon < 4 && hfc->b_mode[fifon / 2] == L1_MODE_TRANS)
622 /* is FifoFull-threshold set for our channel? */
623 threshbit = threshtable[fifon] & hfc->threshold_mask;
624 num_isoc_packets = iso_packets[fifon];
626 /* predict dataflow to avoid fifo overflow */
627 if (fifon >= HFCUSB_D_TX) {
628 sink = (threshbit) ? SINK_DMIN : SINK_DMAX;
630 sink = (threshbit) ? SINK_MIN : SINK_MAX;
632 fill_isoc_urb(urb, fifo->hfc->dev, fifo->pipe,
633 context_iso_urb->buffer, num_isoc_packets,
634 fifo->usb_packet_maxlen, fifo->intervall,
635 tx_iso_complete, urb->context);
636 memset(context_iso_urb->buffer, 0,
637 sizeof(context_iso_urb->buffer));
638 frame_complete = false;
639 /* Generate next Iso Packets */
640 for (k = 0; k < num_isoc_packets; ++k) {
642 len = fifo->skbuff->len;
643 /* we lower data margin every msec */
644 fifo->bit_line -= sink;
645 current_len = (0 - fifo->bit_line) / 8;
646 /* maximum 15 byte for every ISO packet makes our life easier */
647 if (current_len > 14)
651 current_len) ? len : current_len;
652 /* how much bit do we put on the line? */
653 fifo->bit_line += current_len * 8;
655 context_iso_urb->buffer[tx_offset] = 0;
656 if (current_len == len) {
658 /* here frame completion */
660 buffer[tx_offset] = 1;
661 /* add 2 byte flags and 16bit CRC at end of ISDN frame */
662 fifo->bit_line += 32;
664 frame_complete = true;
667 memcpy(context_iso_urb->buffer +
668 tx_offset + 1, fifo->skbuff->data,
670 skb_pull(fifo->skbuff, current_len);
672 /* define packet delimeters within the URB buffer */
673 urb->iso_frame_desc[k].offset = tx_offset;
674 urb->iso_frame_desc[k].length =
677 tx_offset += (current_len + 1);
679 urb->iso_frame_desc[k].offset =
682 urb->iso_frame_desc[k].length = 1;
683 fifo->bit_line -= sink; /* we lower data margin every msec */
685 if (fifo->bit_line < BITLINE_INF) {
686 fifo->bit_line = BITLINE_INF;
690 if (frame_complete) {
691 fifo->delete_flg = true;
692 fifo->hif->l1l2(fifo->hif,
694 (void *) (unsigned long) fifo->skbuff->
696 if (fifo->skbuff && fifo->delete_flg) {
697 dev_kfree_skb_any(fifo->skbuff);
699 fifo->delete_flg = false;
701 frame_complete = false;
704 errcode = usb_submit_urb(urb, GFP_ATOMIC);
707 "HFC-S USB: error submitting ISO URB: %d \n",
711 if (status && !hfc->disc_flag) {
713 "HFC-S USB: tx_iso_complete : urb->status %s (%i), fifonum=%d\n",
714 symbolic(urb_errlist, status), status,
718 } /* tx_iso_complete */
720 /*****************************************************/
721 /* receive completion routine for all ISO tx fifos */
722 /*****************************************************/
724 rx_iso_complete(struct urb *urb)
726 iso_urb_struct *context_iso_urb = (iso_urb_struct *) urb->context;
727 usb_fifo *fifo = context_iso_urb->owner_fifo;
728 hfcusb_data *hfc = fifo->hfc;
729 int k, len, errcode, offset, num_isoc_packets, fifon, maxlen,
731 unsigned int iso_status;
734 #ifdef CONFIG_HISAX_DEBUG
738 fifon = fifo->fifonum;
739 status = urb->status;
741 if (urb->status == -EOVERFLOW) {
742 #ifdef CONFIG_HISAX_DEBUG
744 "HFC-USB: ignoring USB DATAOVERRUN for fifo %i \n",
749 if (fifo->active && !status) {
750 num_isoc_packets = iso_packets[fifon];
751 maxlen = fifo->usb_packet_maxlen;
752 for (k = 0; k < num_isoc_packets; ++k) {
753 len = urb->iso_frame_desc[k].actual_length;
754 offset = urb->iso_frame_desc[k].offset;
755 buf = context_iso_urb->buffer + offset;
756 iso_status = urb->iso_frame_desc[k].status;
757 #ifdef CONFIG_HISAX_DEBUG
758 if (iso_status && !hfc->disc_flag)
760 "HFC-S USB: ISO packet failure - status:%x",
763 if ((fifon == 5) && (debug > 1)) {
765 "HFC-S USB: ISO-D-RX lst_urblen:%2d "
766 "act_urblen:%2d max-urblen:%2d "
768 fifo->last_urblen, len, maxlen,
770 for (i = 0; i < len; i++)
771 printk("%.2x ", buf[i]);
775 if (fifo->last_urblen != maxlen) {
776 /* the threshold mask is in the 2nd status byte */
777 hfc->threshold_mask = buf[1];
778 /* care for L1 state only for D-Channel
779 to avoid overlapped iso completions */
781 /* the S0 state is in the upper half
782 of the 1st status byte */
783 state_handler(hfc, buf[0] >> 4);
785 eof[fifon] = buf[0] & 1;
787 collect_rx_frame(fifo, buf + 2,
793 collect_rx_frame(fifo, buf, len,
795 maxlen) ? eof[fifon] :
798 fifo->last_urblen = len;
801 fill_isoc_urb(urb, fifo->hfc->dev, fifo->pipe,
802 context_iso_urb->buffer, num_isoc_packets,
803 fifo->usb_packet_maxlen, fifo->intervall,
804 rx_iso_complete, urb->context);
805 errcode = usb_submit_urb(urb, GFP_ATOMIC);
808 "HFC-S USB: error submitting ISO URB: %d \n",
812 if (status && !hfc->disc_flag) {
814 "HFC-S USB: rx_iso_complete : "
815 "urb->status %d, fifonum %d\n",
819 } /* rx_iso_complete */
821 /*****************************************************/
822 /* collect data from interrupt or isochron in */
823 /*****************************************************/
825 collect_rx_frame(usb_fifo * fifo, __u8 * data, int len, int finish)
827 hfcusb_data *hfc = fifo->hfc;
828 int transp_mode, fifon;
829 #ifdef CONFIG_HISAX_DEBUG
832 fifon = fifo->fifonum;
834 if (fifon < 4 && hfc->b_mode[fifon / 2] == L1_MODE_TRANS)
838 fifo->skbuff = dev_alloc_skb(fifo->max_size + 3);
841 "HFC-S USB: cannot allocate buffer (dev_alloc_skb) fifo:%d\n",
847 if (fifo->skbuff->len + len < fifo->max_size) {
848 memcpy(skb_put(fifo->skbuff, len), data, len);
850 #ifdef CONFIG_HISAX_DEBUG
851 printk(KERN_INFO "HFC-S USB: ");
852 for (i = 0; i < 15; i++)
854 fifo->skbuff->data[fifo->skbuff->
859 "HCF-USB: got frame exceeded fifo->max_size:%d on fifo:%d\n",
860 fifo->max_size, fifon);
863 if (transp_mode && fifo->skbuff->len >= 128) {
864 fifo->hif->l1l2(fifo->hif, PH_DATA | INDICATION,
869 /* we have a complete hdlc packet */
871 if ((!fifo->skbuff->data[fifo->skbuff->len - 1])
872 && (fifo->skbuff->len > 3)) {
873 /* remove CRC & status */
874 skb_trim(fifo->skbuff, fifo->skbuff->len - 3);
875 if (fifon == HFCUSB_PCM_RX) {
876 fifo->hif->l1l2(fifo->hif,
877 PH_DATA_E | INDICATION,
880 fifo->hif->l1l2(fifo->hif,
881 PH_DATA | INDICATION,
883 fifo->skbuff = NULL; /* buffer was freed from upper layer */
885 if (fifo->skbuff->len > 3) {
887 "HFC-S USB: got frame %d bytes but CRC ERROR on fifo:%d!!!\n",
888 fifo->skbuff->len, fifon);
889 #ifdef CONFIG_HISAX_DEBUG
891 printk(KERN_INFO "HFC-S USB: ");
892 for (i = 0; i < 15; i++)
901 #ifdef CONFIG_HISAX_DEBUG
904 "HFC-S USB: frame to small (%d bytes)!!!\n",
908 skb_trim(fifo->skbuff, 0);
913 /***********************************************/
914 /* receive completion routine for all rx fifos */
915 /***********************************************/
917 rx_complete(struct urb *urb)
921 __u8 *buf, maxlen, fifon;
922 usb_fifo *fifo = (usb_fifo *) urb->context;
923 hfcusb_data *hfc = fifo->hfc;
925 #ifdef CONFIG_HISAX_DEBUG
929 urb->dev = hfc->dev; /* security init */
931 fifon = fifo->fifonum;
932 if ((!fifo->active) || (urb->status)) {
933 #ifdef CONFIG_HISAX_DEBUG
934 DBG(USB_DBG, "HFC-S USB: RX-Fifo %i is going down (%i)",
937 fifo->urb->interval = 0; /* cancel automatic rescheduling */
939 dev_kfree_skb_any(fifo->skbuff);
944 len = urb->actual_length;
946 maxlen = fifo->usb_packet_maxlen;
948 #ifdef CONFIG_HISAX_DEBUG
949 if ((fifon == 5) && (debug > 1)) {
951 "HFC-S USB: INT-D-RX lst_urblen:%2d act_urblen:%2d max-urblen:%2d EOF:0x%0x DATA: ",
952 fifo->last_urblen, len, maxlen, eof[5]);
953 for (i = 0; i < len; i++)
954 printk("%.2x ", buf[i]);
959 if (fifo->last_urblen != fifo->usb_packet_maxlen) {
960 /* the threshold mask is in the 2nd status byte */
961 hfc->threshold_mask = buf[1];
962 /* the S0 state is in the upper half of the 1st status byte */
963 state_handler(hfc, buf[0] >> 4);
964 eof[fifon] = buf[0] & 1;
965 /* if we have more than the 2 status bytes -> collect data */
967 collect_rx_frame(fifo, buf + 2,
968 urb->actual_length - 2,
969 (len < maxlen) ? eof[fifon] : 0);
971 collect_rx_frame(fifo, buf, urb->actual_length,
972 (len < maxlen) ? eof[fifon] : 0);
974 fifo->last_urblen = urb->actual_length;
975 status = usb_submit_urb(urb, GFP_ATOMIC);
978 "HFC-S USB: error resubmitting URN at rx_complete...\n");
982 /***************************************************/
983 /* start the interrupt transfer for the given fifo */
984 /***************************************************/
986 start_int_fifo(usb_fifo * fifo)
990 printk(KERN_INFO "HFC-S USB: starting intr IN fifo:%d\n",
994 fifo->urb = usb_alloc_urb(0, GFP_KERNEL);
998 usb_fill_int_urb(fifo->urb, fifo->hfc->dev, fifo->pipe,
999 fifo->buffer, fifo->usb_packet_maxlen,
1000 rx_complete, fifo, fifo->intervall);
1001 fifo->active = 1; /* must be marked active */
1002 errcode = usb_submit_urb(fifo->urb, GFP_KERNEL);
1005 "HFC-S USB: submit URB error(start_int_info): status:%i\n",
1008 fifo->skbuff = NULL;
1010 } /* start_int_fifo */
1012 /*****************************/
1013 /* set the B-channel mode */
1014 /*****************************/
1016 set_hfcmode(hfcusb_data * hfc, int channel, int mode)
1018 __u8 val, idx_table[2] = { 0, 2 };
1020 if (hfc->disc_flag) {
1023 #ifdef CONFIG_HISAX_DEBUG
1024 DBG(ISDN_DBG, "HFC-S USB: setting channel %d to mode %d", channel,
1027 hfc->b_mode[channel] = mode;
1029 /* setup CON_HDLC */
1031 if (mode != L1_MODE_NULL)
1032 val = 8; /* enable fifo? */
1033 if (mode == L1_MODE_TRANS)
1034 val |= 2; /* set transparent bit */
1036 /* set FIFO to transmit register */
1037 queue_control_request(hfc, HFCUSB_FIFO, idx_table[channel], 1);
1038 queue_control_request(hfc, HFCUSB_CON_HDLC, val, 1);
1040 queue_control_request(hfc, HFCUSB_INC_RES_F, 2, 1);
1041 /* set FIFO to receive register */
1042 queue_control_request(hfc, HFCUSB_FIFO, idx_table[channel] + 1, 1);
1043 queue_control_request(hfc, HFCUSB_CON_HDLC, val, 1);
1045 queue_control_request(hfc, HFCUSB_INC_RES_F, 2, 1);
1052 queue_control_request(hfc, HFCUSB_SCTRL, val, 1);
1059 queue_control_request(hfc, HFCUSB_SCTRL_R, val, 1);
1061 if (mode == L1_MODE_NULL) {
1063 handle_led(hfc, LED_B2_OFF);
1065 handle_led(hfc, LED_B1_OFF);
1068 handle_led(hfc, LED_B2_ON);
1070 handle_led(hfc, LED_B1_ON);
1075 hfc_usb_l2l1(struct hisax_if *my_hisax_if, int pr, void *arg)
1077 usb_fifo *fifo = my_hisax_if->priv;
1078 hfcusb_data *hfc = fifo->hfc;
1081 case PH_ACTIVATE | REQUEST:
1082 if (fifo->fifonum == HFCUSB_D_TX) {
1083 #ifdef CONFIG_HISAX_DEBUG
1085 "HFC_USB: hfc_usb_d_l2l1 D-chan: PH_ACTIVATE | REQUEST");
1087 if (hfc->l1_state != 3
1088 && hfc->l1_state != 7) {
1089 hfc->d_if.ifc.l1l2(&hfc->d_if.ifc,
1093 #ifdef CONFIG_HISAX_DEBUG
1095 "HFC-S USB: PH_DEACTIVATE | INDICATION sent (not state 3 or 7)");
1098 if (hfc->l1_state == 7) { /* l1 already active */
1099 hfc->d_if.ifc.l1l2(&hfc->
1106 #ifdef CONFIG_HISAX_DEBUG
1108 "HFC-S USB: PH_ACTIVATE | INDICATION sent again ;)");
1111 /* force sending sending INFO1 */
1112 queue_control_request(hfc,
1117 /* start l1 activation */
1118 queue_control_request(hfc,
1135 #ifdef CONFIG_HISAX_DEBUG
1137 "HFC_USB: hfc_usb_d_l2l1 Bx-chan: PH_ACTIVATE | REQUEST");
1141 HFCUSB_B1_TX) ? 0 : 1,
1143 fifo->hif->l1l2(fifo->hif,
1144 PH_ACTIVATE | INDICATION,
1148 case PH_DEACTIVATE | REQUEST:
1149 if (fifo->fifonum == HFCUSB_D_TX) {
1150 #ifdef CONFIG_HISAX_DEBUG
1152 "HFC_USB: hfc_usb_d_l2l1 D-chan: PH_DEACTIVATE | REQUEST");
1155 "HFC-S USB: ISDN TE device should not deativate...\n");
1157 #ifdef CONFIG_HISAX_DEBUG
1159 "HFC_USB: hfc_usb_d_l2l1 Bx-chan: PH_DEACTIVATE | REQUEST");
1163 HFCUSB_B1_TX) ? 0 : 1,
1164 (int) L1_MODE_NULL);
1165 fifo->hif->l1l2(fifo->hif,
1166 PH_DEACTIVATE | INDICATION,
1170 case PH_DATA | REQUEST:
1171 if (fifo->skbuff && fifo->delete_flg) {
1172 dev_kfree_skb_any(fifo->skbuff);
1173 fifo->skbuff = NULL;
1174 fifo->delete_flg = false;
1176 fifo->skbuff = arg; /* we have a new buffer */
1180 "HFC_USB: hfc_usb_d_l2l1: unkown state : %#x\n",
1186 /***************************************************************************/
1187 /* usb_init is called once when a new matching device is detected to setup */
1188 /* main parameters. It registers the driver at the main hisax module. */
1189 /* on success 0 is returned. */
1190 /***************************************************************************/
1192 usb_init(hfcusb_data * hfc)
1197 struct hisax_b_if *p_b_if[2];
1199 /* check the chip id */
1200 if (read_usb(hfc, HFCUSB_CHIP_ID, &b) != 1) {
1201 printk(KERN_INFO "HFC-USB: cannot read chip id\n");
1204 if (b != HFCUSB_CHIPID) {
1205 printk(KERN_INFO "HFC-S USB: Invalid chip id 0x%02x\n", b);
1209 /* first set the needed config, interface and alternate */
1210 err = usb_set_interface(hfc->dev, hfc->if_used, hfc->alt_used);
1213 write_usb(hfc, HFCUSB_CIRM, 8);
1214 /* aux = output, reset off */
1215 write_usb(hfc, HFCUSB_CIRM, 0x10);
1217 /* set USB_SIZE to match the wMaxPacketSize for INT or BULK transfers */
1218 write_usb(hfc, HFCUSB_USB_SIZE,
1219 (hfc->packet_size / 8) | ((hfc->packet_size / 8) << 4));
1221 /* set USB_SIZE_I to match the wMaxPacketSize for ISO transfers */
1222 write_usb(hfc, HFCUSB_USB_SIZE_I, hfc->iso_packet_size);
1224 /* enable PCM/GCI master mode */
1225 write_usb(hfc, HFCUSB_MST_MODE1, 0); /* set default values */
1226 write_usb(hfc, HFCUSB_MST_MODE0, 1); /* enable master mode */
1228 /* init the fifos */
1229 write_usb(hfc, HFCUSB_F_THRES,
1230 (HFCUSB_TX_THRESHOLD /
1231 8) | ((HFCUSB_RX_THRESHOLD / 8) << 4));
1234 for (i = 0; i < HFCUSB_NUM_FIFOS; i++) {
1235 write_usb(hfc, HFCUSB_FIFO, i); /* select the desired fifo */
1236 fifo[i].skbuff = NULL; /* init buffer pointer */
1238 (i <= HFCUSB_B2_RX) ? MAX_BCH_SIZE : MAX_DFRAME_LEN;
1239 fifo[i].last_urblen = 0;
1240 /* set 2 bit for D- & E-channel */
1241 write_usb(hfc, HFCUSB_HDLC_PAR,
1242 ((i <= HFCUSB_B2_RX) ? 0 : 2));
1243 /* rx hdlc, enable IFF for D-channel */
1244 write_usb(hfc, HFCUSB_CON_HDLC,
1245 ((i == HFCUSB_D_TX) ? 0x09 : 0x08));
1246 write_usb(hfc, HFCUSB_INC_RES_F, 2); /* reset the fifo */
1249 write_usb(hfc, HFCUSB_CLKDEL, 0x0f); /* clock delay value */
1250 write_usb(hfc, HFCUSB_STATES, 3 | 0x10); /* set deactivated mode */
1251 write_usb(hfc, HFCUSB_STATES, 3); /* enable state machine */
1253 write_usb(hfc, HFCUSB_SCTRL_R, 0); /* disable both B receivers */
1254 write_usb(hfc, HFCUSB_SCTRL, 0x40); /* disable B transmitters + capacitive mode */
1256 /* set both B-channel to not connected */
1257 hfc->b_mode[0] = L1_MODE_NULL;
1258 hfc->b_mode[1] = L1_MODE_NULL;
1260 hfc->l1_activated = false;
1261 hfc->disc_flag = false;
1263 hfc->led_new_data = 0;
1264 hfc->old_led_state = 0;
1266 /* init the t3 timer */
1267 init_timer(&hfc->t3_timer);
1268 hfc->t3_timer.data = (long) hfc;
1269 hfc->t3_timer.function = (void *) l1_timer_expire_t3;
1271 /* init the t4 timer */
1272 init_timer(&hfc->t4_timer);
1273 hfc->t4_timer.data = (long) hfc;
1274 hfc->t4_timer.function = (void *) l1_timer_expire_t4;
1276 /* init the background machinery for control requests */
1277 hfc->ctrl_read.bRequestType = 0xc0;
1278 hfc->ctrl_read.bRequest = 1;
1279 hfc->ctrl_read.wLength = cpu_to_le16(1);
1280 hfc->ctrl_write.bRequestType = 0x40;
1281 hfc->ctrl_write.bRequest = 0;
1282 hfc->ctrl_write.wLength = 0;
1283 usb_fill_control_urb(hfc->ctrl_urb,
1286 (u_char *) & hfc->ctrl_write,
1287 NULL, 0, ctrl_complete, hfc);
1288 /* Init All Fifos */
1289 for (i = 0; i < HFCUSB_NUM_FIFOS; i++) {
1290 hfc->fifos[i].iso[0].purb = NULL;
1291 hfc->fifos[i].iso[1].purb = NULL;
1292 hfc->fifos[i].active = 0;
1294 /* register Modul to upper Hisax Layers */
1295 hfc->d_if.owner = THIS_MODULE;
1296 hfc->d_if.ifc.priv = &hfc->fifos[HFCUSB_D_TX];
1297 hfc->d_if.ifc.l2l1 = hfc_usb_l2l1;
1298 for (i = 0; i < 2; i++) {
1299 hfc->b_if[i].ifc.priv = &hfc->fifos[HFCUSB_B1_TX + i * 2];
1300 hfc->b_if[i].ifc.l2l1 = hfc_usb_l2l1;
1301 p_b_if[i] = &hfc->b_if[i];
1303 /* default Prot: EURO ISDN, should be a module_param */
1305 i = hisax_register(&hfc->d_if, p_b_if, "hfc_usb", hfc->protocol);
1307 printk(KERN_INFO "HFC-S USB: hisax_register -> %d\n", i);
1311 #ifdef CONFIG_HISAX_DEBUG
1315 for (i = 0; i < 4; i++)
1316 hfc->fifos[i].hif = &p_b_if[i / 2]->ifc;
1317 for (i = 4; i < 8; i++)
1318 hfc->fifos[i].hif = &hfc->d_if.ifc;
1320 /* 3 (+1) INT IN + 3 ISO OUT */
1321 if (hfc->cfg_used == CNF_3INT3ISO || hfc->cfg_used == CNF_4INT3ISO) {
1322 start_int_fifo(hfc->fifos + HFCUSB_D_RX);
1323 if (hfc->fifos[HFCUSB_PCM_RX].pipe)
1324 start_int_fifo(hfc->fifos + HFCUSB_PCM_RX);
1325 start_int_fifo(hfc->fifos + HFCUSB_B1_RX);
1326 start_int_fifo(hfc->fifos + HFCUSB_B2_RX);
1328 /* 3 (+1) ISO IN + 3 ISO OUT */
1329 if (hfc->cfg_used == CNF_3ISO3ISO || hfc->cfg_used == CNF_4ISO3ISO) {
1330 start_isoc_chain(hfc->fifos + HFCUSB_D_RX, ISOC_PACKETS_D,
1331 rx_iso_complete, 16);
1332 if (hfc->fifos[HFCUSB_PCM_RX].pipe)
1333 start_isoc_chain(hfc->fifos + HFCUSB_PCM_RX,
1334 ISOC_PACKETS_D, rx_iso_complete,
1336 start_isoc_chain(hfc->fifos + HFCUSB_B1_RX, ISOC_PACKETS_B,
1337 rx_iso_complete, 16);
1338 start_isoc_chain(hfc->fifos + HFCUSB_B2_RX, ISOC_PACKETS_B,
1339 rx_iso_complete, 16);
1342 start_isoc_chain(hfc->fifos + HFCUSB_D_TX, ISOC_PACKETS_D,
1343 tx_iso_complete, 1);
1344 start_isoc_chain(hfc->fifos + HFCUSB_B1_TX, ISOC_PACKETS_B,
1345 tx_iso_complete, 1);
1346 start_isoc_chain(hfc->fifos + HFCUSB_B2_TX, ISOC_PACKETS_B,
1347 tx_iso_complete, 1);
1349 handle_led(hfc, LED_POWER_ON);
1354 /*************************************************/
1355 /* function called to probe a new plugged device */
1356 /*************************************************/
1358 hfc_usb_probe(struct usb_interface *intf, const struct usb_device_id *id)
1360 struct usb_device *dev = interface_to_usbdev(intf);
1361 hfcusb_data *context;
1362 struct usb_host_interface *iface = intf->cur_altsetting;
1363 struct usb_host_interface *iface_used = NULL;
1364 struct usb_host_endpoint *ep;
1365 int ifnum = iface->desc.bInterfaceNumber;
1366 int i, idx, alt_idx, probe_alt_setting, vend_idx, cfg_used, *vcf,
1367 attr, cfg_found, cidx, ep_addr;
1368 int cmptbl[16], small_match, iso_packet_size, packet_size,
1370 hfcsusb_vdata *driver_info;
1373 for (i = 0; hfcusb_idtab[i].idVendor; i++) {
1374 if ((le16_to_cpu(dev->descriptor.idVendor) == hfcusb_idtab[i].idVendor)
1375 && (le16_to_cpu(dev->descriptor.idProduct) == hfcusb_idtab[i].idProduct)) {
1381 #ifdef CONFIG_HISAX_DEBUG
1383 "HFC-USB: probing interface(%d) actalt(%d) minor(%d)\n", ifnum,
1384 iface->desc.bAlternateSetting, intf->minor);
1387 "HFC-S USB: probing interface(%d) actalt(%d) minor(%d)\n",
1388 ifnum, iface->desc.bAlternateSetting, intf->minor);
1390 if (vend_idx != 0xffff) {
1391 /* if vendor and product ID is OK, start probing alternate settings */
1393 small_match = 0xffff;
1395 /* default settings */
1396 iso_packet_size = 16;
1399 while (alt_idx < intf->num_altsetting) {
1400 iface = intf->altsetting + alt_idx;
1401 probe_alt_setting = iface->desc.bAlternateSetting;
1404 /* check for config EOL element */
1405 while (validconf[cfg_used][0]) {
1407 vcf = validconf[cfg_used];
1408 /* first endpoint descriptor */
1409 ep = iface->endpoint;
1410 #ifdef CONFIG_HISAX_DEBUG
1412 "HFC-S USB: (if=%d alt=%d cfg_used=%d)\n",
1413 ifnum, probe_alt_setting, cfg_used);
1415 memcpy(cmptbl, vcf, 16 * sizeof(int));
1417 /* check for all endpoints in this alternate setting */
1418 for (i = 0; i < iface->desc.bNumEndpoints;
1421 ep->desc.bEndpointAddress;
1422 /* get endpoint base */
1423 idx = ((ep_addr & 0x7f) - 1) * 2;
1426 attr = ep->desc.bmAttributes;
1427 if (cmptbl[idx] == EP_NUL) {
1430 if (attr == USB_ENDPOINT_XFER_INT
1431 && cmptbl[idx] == EP_INT)
1432 cmptbl[idx] = EP_NUL;
1433 if (attr == USB_ENDPOINT_XFER_BULK
1434 && cmptbl[idx] == EP_BLK)
1435 cmptbl[idx] = EP_NUL;
1436 if (attr == USB_ENDPOINT_XFER_ISOC
1437 && cmptbl[idx] == EP_ISO)
1438 cmptbl[idx] = EP_NUL;
1440 /* check if all INT endpoints match minimum interval */
1441 if (attr == USB_ENDPOINT_XFER_INT
1442 && ep->desc.bInterval <
1444 #ifdef CONFIG_HISAX_DEBUG
1447 "HFC-S USB: Interrupt Endpoint interval < %d found - skipping config",
1454 for (i = 0; i < 16; i++) {
1455 /* all entries must be EP_NOP or EP_NUL for a valid config */
1456 if (cmptbl[i] != EP_NOP
1457 && cmptbl[i] != EP_NUL)
1461 if (cfg_used < small_match) {
1462 small_match = cfg_used;
1467 #ifdef CONFIG_HISAX_DEBUG
1469 "HFC-USB: small_match=%x %x\n",
1470 small_match, alt_used);
1476 } /* (alt_idx < intf->num_altsetting) */
1478 /* found a valid USB Ta Endpint config */
1479 if (small_match != 0xffff) {
1483 kzalloc(sizeof(hfcusb_data), GFP_KERNEL)))
1484 return (-ENOMEM); /* got no mem */
1486 ep = iface->endpoint;
1487 vcf = validconf[small_match];
1489 for (i = 0; i < iface->desc.bNumEndpoints; i++) {
1490 ep_addr = ep->desc.bEndpointAddress;
1491 /* get endpoint base */
1492 idx = ((ep_addr & 0x7f) - 1) * 2;
1496 attr = ep->desc.bmAttributes;
1498 /* init Endpoints */
1499 if (vcf[idx] != EP_NOP
1500 && vcf[idx] != EP_NUL) {
1502 case USB_ENDPOINT_XFER_INT:
1515 le16_to_cpu(ep->desc.wMaxPacketSize);
1517 case USB_ENDPOINT_XFER_BULK:
1543 le16_to_cpu(ep->desc.wMaxPacketSize);
1545 case USB_ENDPOINT_XFER_ISOC:
1571 le16_to_cpu(ep->desc.wMaxPacketSize);
1577 } /* switch attribute */
1579 if (context->fifos[cidx].pipe) {
1580 context->fifos[cidx].
1582 context->fifos[cidx].hfc =
1584 context->fifos[cidx].usb_packet_maxlen =
1585 le16_to_cpu(ep->desc.wMaxPacketSize);
1586 context->fifos[cidx].
1589 context->fifos[cidx].
1595 context->dev = dev; /* save device */
1596 context->if_used = ifnum; /* save used interface */
1597 context->alt_used = alt_used; /* and alternate config */
1598 context->ctrl_paksize = dev->descriptor.bMaxPacketSize0; /* control size */
1599 context->cfg_used = vcf[16]; /* store used config */
1600 context->vend_idx = vend_idx; /* store found vendor */
1601 context->packet_size = packet_size;
1602 context->iso_packet_size = iso_packet_size;
1604 /* create the control pipes needed for register access */
1605 context->ctrl_in_pipe =
1606 usb_rcvctrlpipe(context->dev, 0);
1607 context->ctrl_out_pipe =
1608 usb_sndctrlpipe(context->dev, 0);
1609 context->ctrl_urb = usb_alloc_urb(0, GFP_KERNEL);
1612 (hfcsusb_vdata *) hfcusb_idtab[vend_idx].
1614 printk(KERN_INFO "HFC-S USB: detected \"%s\"\n",
1615 driver_info->vend_name);
1616 #ifdef CONFIG_HISAX_DEBUG
1618 "HFC-S USB: Endpoint-Config: %s (if=%d alt=%d)\n",
1619 conf_str[small_match], context->if_used,
1622 "HFC-S USB: E-channel (\"ECHO:\") logging ");
1623 if (validconf[small_match][18])
1624 printk(" possible\n");
1626 printk("NOT possible\n");
1628 /* init the chip and register the driver */
1629 if (usb_init(context)) {
1630 usb_kill_urb(context->ctrl_urb);
1631 usb_free_urb(context->ctrl_urb);
1632 context->ctrl_urb = NULL;
1636 usb_set_intfdata(intf, context);
1641 "HFC-S USB: no valid vendor found in USB descriptor\n");
1646 /****************************************************/
1647 /* function called when an active device is removed */
1648 /****************************************************/
1650 hfc_usb_disconnect(struct usb_interface
1653 hfcusb_data *context = usb_get_intfdata(intf);
1655 printk(KERN_INFO "HFC-S USB: device disconnect\n");
1656 context->disc_flag = true;
1657 usb_set_intfdata(intf, NULL);
1660 if (timer_pending(&context->t3_timer))
1661 del_timer(&context->t3_timer);
1662 if (timer_pending(&context->t4_timer))
1663 del_timer(&context->t4_timer);
1664 /* tell all fifos to terminate */
1665 for (i = 0; i < HFCUSB_NUM_FIFOS; i++) {
1666 if (context->fifos[i].usb_transfer_mode == USB_ISOC) {
1667 if (context->fifos[i].active > 0) {
1668 stop_isoc_chain(&context->fifos[i]);
1669 #ifdef CONFIG_HISAX_DEBUG
1671 "HFC-S USB: hfc_usb_disconnect: stopping ISOC chain Fifo no %i",
1676 if (context->fifos[i].active > 0) {
1677 context->fifos[i].active = 0;
1678 #ifdef CONFIG_HISAX_DEBUG
1680 "HFC-S USB: hfc_usb_disconnect: unlinking URB for Fifo no %i",
1684 usb_kill_urb(context->fifos[i].urb);
1685 usb_free_urb(context->fifos[i].urb);
1686 context->fifos[i].urb = NULL;
1688 context->fifos[i].active = 0;
1690 usb_kill_urb(context->ctrl_urb);
1691 usb_free_urb(context->ctrl_urb);
1692 context->ctrl_urb = NULL;
1693 hisax_unregister(&context->d_if);
1694 kfree(context); /* free our structure again */
1695 } /* hfc_usb_disconnect */
1697 /************************************/
1698 /* our driver information structure */
1699 /************************************/
1700 static struct usb_driver hfc_drv = {
1702 .id_table = hfcusb_idtab,
1703 .probe = hfc_usb_probe,
1704 .disconnect = hfc_usb_disconnect,
1709 #ifdef CONFIG_HISAX_DEBUG
1710 DBG(USB_DBG, "HFC-S USB: calling \"hfc_usb_exit\" ...");
1712 usb_deregister(&hfc_drv); /* release our driver */
1713 printk(KERN_INFO "HFC-S USB: module removed\n");
1719 #ifndef CONFIG_HISAX_DEBUG
1720 unsigned int debug = -1;
1722 char revstr[30], datestr[30], dummy[30];
1723 sscanf(hfcusb_revision,
1724 "%s %s $ %s %s %s $ ", dummy, revstr,
1725 dummy, datestr, dummy);
1727 "HFC-S USB: driver module revision %s date %s loaded, (debug=%i)\n",
1728 revstr, datestr, debug);
1729 if (usb_register(&hfc_drv)) {
1731 "HFC-S USB: Unable to register HFC-S USB module at usb stack\n");
1732 return (-1); /* unable to register */
1737 module_init(hfc_usb_init);
1738 module_exit(hfc_usb_exit);
1739 MODULE_AUTHOR(DRIVER_AUTHOR);
1740 MODULE_DESCRIPTION(DRIVER_DESC);
1741 MODULE_LICENSE("GPL");
1742 MODULE_DEVICE_TABLE(usb, hfcusb_idtab);