1 /* Copyright (C) 2007-2008 One Stop Systems
2 * Copyright (C) 2003-2006 SBE, Inc.
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
15 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
17 #include <linux/types.h>
18 #include <linux/netdevice.h>
19 #include <linux/hdlc.h>
20 #include <linux/if_arp.h>
21 #include <linux/init.h>
22 #include <asm/uaccess.h>
23 #include <linux/rtnetlink.h>
24 #include <linux/skbuff.h>
25 #include "pmcc4_sysdep.h"
26 #include "sbecom_inline_linux.h"
29 #include "pmcc4_ioctls.h"
30 #include "pmcc4_private.h"
33 /*****************************************************************************************
34 * Error out early if we have compiler trouble.
36 * (This section is included from the kernel's init/main.c as a friendly
37 * spiderman recommendation...)
39 * Versions of gcc older than that listed below may actually compile and link
40 * okay, but the end product can have subtle run time bugs. To avoid associated
41 * bogus bug reports, we flatly refuse to compile with a gcc that is known to be
42 * too old from the very beginning.
44 #if (__GNUC__ < 3) || (__GNUC__ == 3 && __GNUC_MINOR__ < 2)
45 #error Sorry, your GCC is too old. It builds incorrect kernels.
48 #if __GNUC__ == 4 && __GNUC_MINOR__ == 1 && __GNUC_PATCHLEVEL__ == 0
49 #warning gcc-4.1.0 is known to miscompile the kernel. A different compiler version is recommended.
52 /*****************************************************************************************/
54 #ifdef SBE_INCLUDE_SYMBOLS
60 #define CHANNAME "hdlc"
62 /*******************************************************************/
63 /* forward references */
64 status_t c4_chan_work_init (mpi_t *, mch_t *);
65 void musycc_wq_chan_restart (void *);
66 status_t __init c4_init (ci_t *, u_char *, u_char *);
67 status_t __init c4_init2 (ci_t *);
68 ci_t *__init c4_new (void *);
69 int __init c4hw_attach_all (void);
70 void __init hdw_sn_get (hdw_info_t *, int);
72 #ifdef CONFIG_SBE_PMCC4_NCOMM
73 irqreturn_t c4_ebus_intr_th_handler (void *);
76 int c4_frame_rw (ci_t *, struct sbecom_port_param *);
77 status_t c4_get_port (ci_t *, int);
78 int c4_loop_port (ci_t *, int, u_int8_t);
79 int c4_musycc_rw (ci_t *, struct c4_musycc_param *);
80 int c4_new_chan (ci_t *, int, int, void *);
81 status_t c4_set_port (ci_t *, int);
82 int c4_pld_rw (ci_t *, struct sbecom_port_param *);
83 void cleanup_devs (void);
84 void cleanup_ioremap (void);
85 status_t musycc_chan_down (ci_t *, int);
86 irqreturn_t musycc_intr_th_handler (void *);
87 int musycc_start_xmit (ci_t *, int, void *);
89 extern char pmcc4_OSSI_release[];
91 extern struct s_hdw_info hdw_info[];
93 #if defined(CONFIG_SBE_HDLC_V7) || defined(CONFIG_SBE_WAN256T3_HDLC_V7) || \
94 defined(CONFIG_SBE_HDLC_V7_MODULE) || defined(CONFIG_SBE_WAN256T3_HDLC_V7_MODULE)
101 #define V7(x) (x ## _v7)
102 extern int hdlc_netif_rx_v7 (hdlc_device *, struct sk_buff *);
103 extern int register_hdlc_device_v7 (hdlc_device *);
104 extern int unregister_hdlc_device_v7 (hdlc_device *);
110 int error_flag; /* module load error reporting */
111 int log_level = LOG_ERROR;
112 int log_level_default = LOG_ERROR;
113 module_param(log_level, int, 0444);
115 int max_mru = MUSYCC_MRU;
116 int max_mru_default = MUSYCC_MRU;
117 module_param(max_mru, int, 0444);
119 int max_mtu = MUSYCC_MTU;
120 int max_mtu_default = MUSYCC_MTU;
121 module_param(max_mtu, int, 0444);
123 int max_txdesc_used = MUSYCC_TXDESC_MIN;
124 int max_txdesc_default = MUSYCC_TXDESC_MIN;
125 module_param(max_txdesc_used, int, 0444);
127 int max_rxdesc_used = MUSYCC_RXDESC_MIN;
128 int max_rxdesc_default = MUSYCC_RXDESC_MIN;
129 module_param(max_rxdesc_used, int, 0444);
131 /****************************************************************************/
132 /****************************************************************************/
133 /****************************************************************************/
136 getuserbychan (int channum)
140 ch = c4_find_chan (channum);
141 return ch ? ch->user : 0;
145 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
146 #define DEV_TO_PRIV(dev) ( * (struct c4_priv **) ((hdlc_device*)(dev)+1))
150 get_hdlc_name (hdlc_device * hdlc)
152 struct c4_priv *priv = hdlc->priv;
153 struct net_device *dev = getuserbychan (priv->channum);
169 /***************************************************************************/
170 #if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,41)
171 #include <linux/workqueue.h>
174 * One workqueue (wq) per port (since musycc allows simultaneous group
175 * commands), with individual data for each channel:
177 * mpi_t -> struct workqueue_struct *wq_port; (dynamically allocated using
178 * create_workqueue())
180 * With work structure (work) statically allocated for each channel:
182 * mch_t -> struct work_struct ch_work; (statically allocated using ???)
188 * Called by the start transmit routine when a channel TX_ENABLE is to be
189 * issued. This queues the transmission start request among other channels
190 * within a port's group.
193 c4_wk_chan_restart (mch_t * ch)
197 #ifdef RLD_RESTART_DEBUG
198 pr_info(">> %s: queueing Port %d Chan %d, mch_t @ %p\n",
199 __func__, pi->portnum, ch->channum, ch);
202 /* create new entry w/in workqueue for this channel and let'er rip */
204 /** queue_work (struct workqueue_struct *queue,
205 ** struct work_struct *work);
207 queue_work (pi->wq_port, &ch->ch_work);
211 c4_wk_chan_init (mpi_t * pi, mch_t * ch)
214 * this will be used to restart a stopped channel
217 /** INIT_WORK (struct work_struct *work,
218 ** void (*function)(void *),
221 INIT_WORK(&ch->ch_work, (void *)musycc_wq_chan_restart);
222 return 0; /* success */
226 c4_wq_port_init (mpi_t * pi)
229 char name[16], *np; /* NOTE: name of the queue limited by system
230 * to 10 characters */
233 return 0; /* already initialized */
236 memset (name, 0, 16);
237 sprintf (np, "%s%d", pi->up->devname, pi->portnum); /* IE pmcc4-01) */
239 #ifdef RLD_RESTART_DEBUG
240 pr_info(">> %s: creating workqueue <%s> for Port %d.\n",
241 __func__, name, pi->portnum); /* RLD DEBUG */
243 if (!(pi->wq_port = create_singlethread_workqueue (name)))
245 return 0; /* success */
249 c4_wq_port_cleanup (mpi_t * pi)
252 * PORT POINT: cannot call this if WQ is statically allocated w/in
253 * structure since it calls kfree(wq);
257 destroy_workqueue (pi->wq_port); /* this also calls
258 * flush_workqueue() */
264 /***************************************************************************/
267 c4_linux_interrupt (int irq, void *dev_instance)
269 struct net_device *ndev = dev_instance;
271 return musycc_intr_th_handler(netdev_priv(ndev));
275 #ifdef CONFIG_SBE_PMCC4_NCOMM
277 c4_ebus_interrupt (int irq, void *dev_instance)
279 struct net_device *ndev = dev_instance;
281 return c4_ebus_intr_th_handler(netdev_priv(ndev));
287 void_open (struct net_device * ndev)
289 pr_info("%s: trying to open master device !\n", ndev->name);
294 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
295 #if !defined(GENERIC_HDLC_VERSION) || (GENERIC_HDLC_VERSION < 4)
297 /** Linux 2.4.18-19 **/
299 chan_open (hdlc_device * hdlc)
303 if ((ret = c4_chan_up (DEV_TO_PRIV (hdlc)->ci, DEV_TO_PRIV (hdlc)->channum)))
306 netif_start_queue (hdlc_to_dev (hdlc));
307 return 0; /* no error = success */
312 /** Linux 2.4.20 and higher **/
314 chan_open (struct net_device * ndev)
316 hdlc_device *hdlc = dev_to_hdlc (ndev);
319 hdlc->proto = IF_PROTO_HDLC;
320 if ((ret = hdlc_open (hdlc)))
322 pr_info("hdlc_open failure, err %d.\n", ret);
325 if ((ret = c4_chan_up (DEV_TO_PRIV (hdlc)->ci, DEV_TO_PRIV (hdlc)->channum)))
328 netif_start_queue (hdlc_to_dev (hdlc));
329 return 0; /* no error = success */
337 chan_open (struct net_device * ndev)
339 hdlc_device *hdlc = dev_to_hdlc (ndev);
340 const struct c4_priv *priv = hdlc->priv;
343 if ((ret = hdlc_open (ndev)))
345 pr_info("hdlc_open failure, err %d.\n", ret);
348 if ((ret = c4_chan_up (priv->ci, priv->channum)))
350 try_module_get (THIS_MODULE);
351 netif_start_queue (ndev);
352 return 0; /* no error = success */
357 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
358 #if !defined(GENERIC_HDLC_VERSION) || (GENERIC_HDLC_VERSION < 4)
360 /** Linux 2.4.18-19 **/
362 chan_close (hdlc_device * hdlc)
364 netif_stop_queue (hdlc_to_dev (hdlc));
365 musycc_chan_down ((ci_t *) 0, DEV_TO_PRIV (hdlc)->channum);
370 /** Linux 2.4.20 and higher **/
372 chan_close (struct net_device * ndev)
374 hdlc_device *hdlc = dev_to_hdlc (ndev);
376 netif_stop_queue (hdlc_to_dev (hdlc));
377 musycc_chan_down ((ci_t *) 0, DEV_TO_PRIV (hdlc)->channum);
388 chan_close (struct net_device * ndev)
390 hdlc_device *hdlc = dev_to_hdlc (ndev);
391 const struct c4_priv *priv = hdlc->priv;
393 netif_stop_queue (ndev);
394 musycc_chan_down ((ci_t *) 0, priv->channum);
396 module_put (THIS_MODULE);
402 #if !defined(GENERIC_HDLC_VERSION) || (GENERIC_HDLC_VERSION < 4)
404 /** Linux 2.4.18-19 **/
406 chan_ioctl (hdlc_device * hdlc, struct ifreq * ifr, int cmd)
408 if (cmd == HDLCSCLOCK)
410 ifr->ifr_ifru.ifru_ivalue = LINE_DEFAULT;
418 #if !defined(GENERIC_HDLC_VERSION) || (GENERIC_HDLC_VERSION < 4)
420 chan_dev_ioctl (struct net_device * hdlc, struct ifreq * ifr, int cmd)
422 if (cmd == HDLCSCLOCK)
424 ifr->ifr_ifru.ifru_ivalue = LINE_DEFAULT;
431 chan_dev_ioctl (struct net_device * dev, struct ifreq * ifr, int cmd)
433 return hdlc_ioctl (dev, ifr, cmd);
438 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
439 chan_attach_noop (hdlc_device * hdlc, unsigned short foo_1, unsigned short foo_2)
441 chan_attach_noop (struct net_device * ndev, unsigned short foo_1, unsigned short foo_2)
444 return 0; /* our driver has nothing to do here, show's
450 STATIC struct net_device_stats *
451 chan_get_stats (struct net_device * ndev)
454 struct net_device_stats *nstats;
455 struct sbecom_chan_stats *stats;
458 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
459 channum = DEV_TO_PRIV (ndev)->channum;
462 struct c4_priv *priv;
464 priv = (struct c4_priv *) dev_to_hdlc (ndev)->priv;
465 channum = priv->channum;
469 ch = c4_find_chan (channum);
473 nstats = &ndev->stats;
476 memset (nstats, 0, sizeof (struct net_device_stats));
477 nstats->rx_packets = stats->rx_packets;
478 nstats->tx_packets = stats->tx_packets;
479 nstats->rx_bytes = stats->rx_bytes;
480 nstats->tx_bytes = stats->tx_bytes;
481 nstats->rx_errors = stats->rx_length_errors +
482 stats->rx_over_errors +
483 stats->rx_crc_errors +
484 stats->rx_frame_errors +
485 stats->rx_fifo_errors +
486 stats->rx_missed_errors;
487 nstats->tx_errors = stats->tx_dropped +
488 stats->tx_aborted_errors +
489 stats->tx_fifo_errors;
490 nstats->rx_dropped = stats->rx_dropped;
491 nstats->tx_dropped = stats->tx_dropped;
493 nstats->rx_length_errors = stats->rx_length_errors;
494 nstats->rx_over_errors = stats->rx_over_errors;
495 nstats->rx_crc_errors = stats->rx_crc_errors;
496 nstats->rx_frame_errors = stats->rx_frame_errors;
497 nstats->rx_fifo_errors = stats->rx_fifo_errors;
498 nstats->rx_missed_errors = stats->rx_missed_errors;
500 nstats->tx_aborted_errors = stats->tx_aborted_errors;
501 nstats->tx_fifo_errors = stats->tx_fifo_errors;
508 get_ci_by_dev (struct net_device * ndev)
510 return (ci_t *)(netdev_priv(ndev));
514 #if !defined(GENERIC_HDLC_VERSION) || (GENERIC_HDLC_VERSION < 4)
516 c4_linux_xmit (hdlc_device * hdlc, struct sk_buff * skb)
520 rval = musycc_start_xmit (DEV_TO_PRIV (hdlc)->ci, DEV_TO_PRIV (hdlc)->channum, skb);
525 c4_linux_xmit (struct sk_buff * skb, struct net_device * ndev)
527 const struct c4_priv *priv;
530 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
531 priv = DEV_TO_PRIV (ndev);
533 hdlc_device *hdlc = dev_to_hdlc (ndev);
538 rval = musycc_start_xmit (priv->ci, priv->channum, skb);
541 #endif /* GENERIC_HDLC_VERSION */
543 static const struct net_device_ops chan_ops = {
544 .ndo_open = chan_open,
545 .ndo_stop = chan_close,
546 .ndo_start_xmit = c4_linux_xmit,
547 .ndo_do_ioctl = chan_dev_ioctl,
548 .ndo_get_stats = chan_get_stats,
551 STATIC struct net_device *
552 create_chan (struct net_device * ndev, ci_t * ci,
553 struct sbecom_chan_param * cp)
556 struct net_device *dev;
560 if (c4_find_chan (cp->channum))
561 return 0; /* channel already exists */
564 struct c4_priv *priv;
566 /* allocate then fill in private data structure */
567 priv = OS_kmalloc (sizeof (struct c4_priv));
570 pr_warning("%s: no memory for net_device !\n", ci->devname);
573 dev = alloc_hdlcdev (priv);
576 pr_warning("%s: no memory for hdlc_device !\n", ci->devname);
581 priv->channum = cp->channum;
584 hdlc = dev_to_hdlc (dev);
586 dev->base_addr = 0; /* not I/O mapped */
587 dev->irq = ndev->irq;
588 dev->type = ARPHRD_RAWHDLC;
589 *dev->name = 0; /* default ifconfig name = "hdlc" */
591 hi = (hdw_info_t *) ci->hdw_info;
592 if (hi->mfg_info_sts == EEPROM_OK)
596 case PROM_FORMAT_TYPE1:
597 memcpy (dev->dev_addr, (FLD_TYPE1 *) (hi->mfg_info.pft1.Serial), 6);
599 case PROM_FORMAT_TYPE2:
600 memcpy (dev->dev_addr, (FLD_TYPE2 *) (hi->mfg_info.pft2.Serial), 6);
603 memset (dev->dev_addr, 0, 6);
608 memset (dev->dev_addr, 0, 6);
611 hdlc->xmit = c4_linux_xmit;
613 dev->netdev_ops = &chan_ops;
615 * The native hdlc stack calls this 'attach' routine during
616 * hdlc_raw_ioctl(), passing parameters for line encoding and parity.
617 * Since hdlc_raw_ioctl() stack does not interrogate whether an 'attach'
618 * routine is actually registered or not, we supply a dummy routine which
619 * does nothing (since encoding and parity are setup for our driver via a
620 * special configuration application).
623 hdlc->attach = chan_attach_noop;
625 rtnl_unlock (); /* needed due to Ioctl calling sequence */
626 ret = register_hdlc_device (dev);
627 /* NOTE: <stats> setting must occur AFTER registration in order to "take" */
628 dev->tx_queue_len = MAX_DEFAULT_IFQLEN;
630 rtnl_lock (); /* needed due to Ioctl calling sequence */
633 if (log_level >= LOG_WARN)
634 pr_info("%s: create_chan[%d] registration error = %d.\n",
635 ci->devname, cp->channum, ret);
636 free_netdev (dev); /* cleanup */
637 return 0; /* failed to register */
643 /* the idea here is to get port information and pass it back (using pointer) */
645 do_get_port (struct net_device * ndev, void *data)
648 ci_t *ci; /* ci stands for card information */
649 struct sbecom_port_param pp;/* copy data to kernel land */
651 if (copy_from_user (&pp, data, sizeof (struct sbecom_port_param)))
653 if (pp.portnum >= MUSYCC_NPORTS)
655 ci = get_ci_by_dev (ndev);
657 return -EINVAL; /* get card info */
659 ret = mkret (c4_get_port (ci, pp.portnum));
662 if (copy_to_user (data, &ci->port[pp.portnum].p,
663 sizeof (struct sbecom_port_param)))
668 /* this function copys the user data and then calls the real action function */
670 do_set_port (struct net_device * ndev, void *data)
672 ci_t *ci; /* ci stands for card information */
673 struct sbecom_port_param pp;/* copy data to kernel land */
675 if (copy_from_user (&pp, data, sizeof (struct sbecom_port_param)))
677 if (pp.portnum >= MUSYCC_NPORTS)
679 ci = get_ci_by_dev (ndev);
681 return -EINVAL; /* get card info */
683 if (pp.portnum >= ci->max_port) /* sanity check */
686 memcpy (&ci->port[pp.portnum].p, &pp, sizeof (struct sbecom_port_param));
687 return mkret (c4_set_port (ci, pp.portnum));
690 /* work the port loopback mode as per directed */
692 do_port_loop (struct net_device * ndev, void *data)
694 struct sbecom_port_param pp;
697 if (copy_from_user (&pp, data, sizeof (struct sbecom_port_param)))
699 ci = get_ci_by_dev (ndev);
702 return mkret (c4_loop_port (ci, pp.portnum, pp.port_mode));
705 /* set the specified register with the given value / or just read it */
707 do_framer_rw (struct net_device * ndev, void *data)
709 struct sbecom_port_param pp;
713 if (copy_from_user (&pp, data, sizeof (struct sbecom_port_param)))
715 ci = get_ci_by_dev (ndev);
718 ret = mkret (c4_frame_rw (ci, &pp));
721 if (copy_to_user (data, &pp, sizeof (struct sbecom_port_param)))
726 /* set the specified register with the given value / or just read it */
728 do_pld_rw (struct net_device * ndev, void *data)
730 struct sbecom_port_param pp;
734 if (copy_from_user (&pp, data, sizeof (struct sbecom_port_param)))
736 ci = get_ci_by_dev (ndev);
739 ret = mkret (c4_pld_rw (ci, &pp));
742 if (copy_to_user (data, &pp, sizeof (struct sbecom_port_param)))
747 /* set the specified register with the given value / or just read it */
749 do_musycc_rw (struct net_device * ndev, void *data)
751 struct c4_musycc_param mp;
755 if (copy_from_user (&mp, data, sizeof (struct c4_musycc_param)))
757 ci = get_ci_by_dev (ndev);
760 ret = mkret (c4_musycc_rw (ci, &mp));
763 if (copy_to_user (data, &mp, sizeof (struct c4_musycc_param)))
769 do_get_chan (struct net_device * ndev, void *data)
771 struct sbecom_chan_param cp;
774 if (copy_from_user (&cp, data,
775 sizeof (struct sbecom_chan_param)))
778 if ((ret = mkret (c4_get_chan (cp.channum, &cp))))
781 if (copy_to_user (data, &cp, sizeof (struct sbecom_chan_param)))
787 do_set_chan (struct net_device * ndev, void *data)
789 struct sbecom_chan_param cp;
793 if (copy_from_user (&cp, data, sizeof (struct sbecom_chan_param)))
795 ci = get_ci_by_dev (ndev);
798 switch (ret = mkret (c4_set_chan (cp.channum, &cp)))
808 do_create_chan (struct net_device * ndev, void *data)
811 struct net_device *dev;
812 struct sbecom_chan_param cp;
815 if (copy_from_user (&cp, data, sizeof (struct sbecom_chan_param)))
817 ci = get_ci_by_dev (ndev);
820 dev = create_chan (ndev, ci, &cp);
823 ret = mkret (c4_new_chan (ci, cp.port, cp.channum, dev));
826 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
827 rtnl_unlock (); /* needed due to Ioctl calling sequence */
828 V7 (unregister_hdlc_device) (dev_to_hdlc (dev));
829 rtnl_lock (); /* needed due to Ioctl calling sequence */
830 OS_kfree (DEV_TO_PRIV (dev));
833 rtnl_unlock (); /* needed due to Ioctl calling sequence */
834 unregister_hdlc_device (dev);
835 rtnl_lock (); /* needed due to Ioctl calling sequence */
843 do_get_chan_stats (struct net_device * ndev, void *data)
845 struct c4_chan_stats_wrap ccs;
848 if (copy_from_user (&ccs, data,
849 sizeof (struct c4_chan_stats_wrap)))
851 switch (ret = mkret (c4_get_chan_stats (ccs.channum, &ccs.stats)))
858 if (copy_to_user (data, &ccs,
859 sizeof (struct c4_chan_stats_wrap)))
864 do_set_loglevel (struct net_device * ndev, void *data)
866 unsigned int log_level;
868 if (copy_from_user (&log_level, data, sizeof (int)))
870 sbecom_set_loglevel (log_level);
875 do_deluser (struct net_device * ndev, int lockit)
877 if (ndev->flags & IFF_UP)
883 const struct c4_priv *priv;
886 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
887 priv = DEV_TO_PRIV (ndev);
889 priv = (struct c4_priv *) dev_to_hdlc (ndev)->priv;
892 channum = priv->channum;
894 ch = c4_find_chan (channum);
897 ch->user = 0; /* will be freed, below */
900 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
902 rtnl_unlock (); /* needed if Ioctl calling sequence */
903 V7 (unregister_hdlc_device) (dev_to_hdlc (ndev));
905 rtnl_lock (); /* needed if Ioctl calling sequence */
906 OS_kfree (DEV_TO_PRIV (ndev));
910 rtnl_unlock (); /* needed if Ioctl calling sequence */
911 unregister_hdlc_device (ndev);
913 rtnl_lock (); /* needed if Ioctl calling sequence */
920 do_del_chan (struct net_device * musycc_dev, void *data)
922 struct sbecom_chan_param cp;
923 char buf[sizeof (CHANNAME) + 3];
924 struct net_device *dev;
927 if (copy_from_user (&cp, data,
928 sizeof (struct sbecom_chan_param)))
930 sprintf (buf, CHANNAME "%d", cp.channum);
931 if (!(dev = dev_get_by_name (&init_net, buf)))
934 ret = do_deluser (dev, 1);
937 return c4_del_chan (cp.channum);
939 int c4_reset_board (void *);
942 do_reset (struct net_device * musycc_dev, void *data)
944 const struct c4_priv *priv;
947 for (i = 0; i < 128; i++)
949 struct net_device *ndev;
950 char buf[sizeof (CHANNAME) + 3];
952 sprintf (buf, CHANNAME "%d", i);
953 if (!(ndev = dev_get_by_name(&init_net, buf)))
955 priv = dev_to_hdlc (ndev)->priv;
957 if ((unsigned long) (priv->ci) ==
958 (unsigned long) (netdev_priv(musycc_dev)))
960 ndev->flags &= ~IFF_UP;
962 netif_stop_queue (ndev);
963 do_deluser (ndev, 1);
971 do_reset_chan_stats (struct net_device * musycc_dev, void *data)
973 struct sbecom_chan_param cp;
975 if (copy_from_user (&cp, data,
976 sizeof (struct sbecom_chan_param)))
978 return mkret (c4_del_chan_stats (cp.channum));
982 c4_ioctl (struct net_device * ndev, struct ifreq * ifr, int cmd)
994 struct sbe_brd_info bip;
995 struct sbe_drv_info dip;
996 struct sbe_iid_info iip;
997 struct sbe_brd_addr bap;
998 struct sbecom_chan_stats stats;
999 struct sbecom_chan_param param;
1000 struct temux_card_stats cards;
1001 struct sbecom_card_param cardp;
1002 struct sbecom_framer_param frp;
1007 if (!capable (CAP_SYS_ADMIN))
1009 if (cmd != SIOCDEVPRIVATE + 15)
1011 if (!(ci = get_ci_by_dev (ndev)))
1013 if (ci->state != C_RUNNING)
1015 if (copy_from_user (&iocmd, ifr->ifr_data, sizeof (iocmd)))
1018 if (copy_from_user (&len, ifr->ifr_data + sizeof (iocmd), sizeof (len)))
1023 pr_info("c4_ioctl: iocmd %x, dir %x type %x nr %x iolen %d.\n", iocmd,
1024 _IOC_DIR (iocmd), _IOC_TYPE (iocmd), _IOC_NR (iocmd),
1027 iolen = _IOC_SIZE (iocmd);
1028 data = ifr->ifr_data + sizeof (iocmd);
1029 if (copy_from_user (&arg, data, iolen))
1035 case SBE_IOC_PORT_GET:
1036 //pr_info(">> SBE_IOC_PORT_GET Ioctl...\n");
1037 ret = do_get_port (ndev, data);
1039 case SBE_IOC_PORT_SET:
1040 //pr_info(">> SBE_IOC_PORT_SET Ioctl...\n");
1041 ret = do_set_port (ndev, data);
1043 case SBE_IOC_CHAN_GET:
1044 //pr_info(">> SBE_IOC_CHAN_GET Ioctl...\n");
1045 ret = do_get_chan (ndev, data);
1047 case SBE_IOC_CHAN_SET:
1048 //pr_info(">> SBE_IOC_CHAN_SET Ioctl...\n");
1049 ret = do_set_chan (ndev, data);
1052 //pr_info(">> C4_DEL_CHAN Ioctl...\n");
1053 ret = do_del_chan (ndev, data);
1055 case SBE_IOC_CHAN_NEW:
1056 ret = do_create_chan (ndev, data);
1058 case SBE_IOC_CHAN_GET_STAT:
1059 ret = do_get_chan_stats (ndev, data);
1061 case SBE_IOC_LOGLEVEL:
1062 ret = do_set_loglevel (ndev, data);
1064 case SBE_IOC_RESET_DEV:
1065 ret = do_reset (ndev, data);
1067 case SBE_IOC_CHAN_DEL_STAT:
1068 ret = do_reset_chan_stats (ndev, data);
1071 ret = do_port_loop (ndev, data);
1074 ret = do_framer_rw (ndev, data);
1077 ret = do_musycc_rw (ndev, data);
1080 ret = do_pld_rw (ndev, data);
1082 case SBE_IOC_IID_GET:
1083 ret = (iolen == sizeof (struct sbe_iid_info)) ? c4_get_iidinfo (ci, &arg.u.iip) : -EFAULT;
1084 if (ret == 0) /* no error, copy data */
1085 if (copy_to_user (data, &arg, iolen))
1089 //pr_info(">> c4_ioctl: EINVAL - unknown iocmd <%x>\n", iocmd);
1096 static const struct net_device_ops c4_ops = {
1097 .ndo_open = void_open,
1098 .ndo_start_xmit = c4_linux_xmit,
1099 .ndo_do_ioctl = c4_ioctl,
1102 static void c4_setup(struct net_device *dev)
1104 dev->type = ARPHRD_VOID;
1105 dev->netdev_ops = &c4_ops;
1108 struct net_device *__init
1109 c4_add_dev (hdw_info_t * hi, int brdno, unsigned long f0, unsigned long f1,
1112 struct net_device *ndev;
1115 ndev = alloc_netdev(sizeof(ci_t), SBE_IFACETMPL, c4_setup);
1118 pr_warning("%s: no memory for struct net_device !\n", hi->devname);
1119 error_flag = ENOMEM;
1122 ci = (ci_t *)(netdev_priv(ndev));
1126 ci->state = C_INIT; /* mark as hardware not available */
1129 ci->brdno = ci->next ? ci->next->brdno + 1 : 0;
1132 CI = ci; /* DEBUG, only board 0 usage */
1134 strcpy (ci->devname, hi->devname);
1135 ci->release = &pmcc4_OSSI_release[0];
1138 #if defined(SBE_ISR_TASKLET)
1139 tasklet_init (&ci->ci_musycc_isr_tasklet,
1140 (void (*) (unsigned long)) musycc_intr_bh_tasklet,
1141 (unsigned long) ci);
1143 if (atomic_read (&ci->ci_musycc_isr_tasklet.count) == 0)
1144 tasklet_disable_nosync (&ci->ci_musycc_isr_tasklet);
1145 #elif defined(SBE_ISR_IMMEDIATE)
1146 ci->ci_musycc_isr_tq.routine = (void *) (unsigned long) musycc_intr_bh_tasklet;
1147 ci->ci_musycc_isr_tq.data = ci;
1151 if (register_netdev (ndev) ||
1152 (c4_init (ci, (u_char *) f0, (u_char *) f1) != SBE_DRVR_SUCCESS))
1154 OS_kfree (netdev_priv(ndev));
1156 error_flag = ENODEV;
1159 /*************************************************************
1160 * int request_irq(unsigned int irq,
1161 * void (*handler)(int, void *, struct pt_regs *),
1162 * unsigned long flags, const char *dev_name, void *dev_id);
1164 * irq -> The interrupt number that is being requested.
1165 * handler -> Pointer to handling function being installed.
1166 * flags -> A bit mask of options related to interrupt management.
1167 * dev_name -> String used in /proc/interrupts to show owner of interrupt.
1168 * dev_id -> Pointer (for shared interrupt lines) to point to its own
1169 * private data area (to identify which device is interrupting).
1171 * extern void free_irq(unsigned int irq, void *dev_id);
1172 **************************************************************/
1174 if (request_irq (irq0, &c4_linux_interrupt,
1175 #if defined(SBE_ISR_TASKLET)
1176 IRQF_DISABLED | IRQF_SHARED,
1177 #elif defined(SBE_ISR_IMMEDIATE)
1178 IRQF_DISABLED | IRQF_SHARED,
1179 #elif defined(SBE_ISR_INLINE)
1184 pr_warning("%s: MUSYCC could not get irq: %d\n", ndev->name, irq0);
1185 unregister_netdev (ndev);
1186 OS_kfree (netdev_priv(ndev));
1191 #ifdef CONFIG_SBE_PMCC4_NCOMM
1192 if (request_irq (irq1, &c4_ebus_interrupt, IRQF_SHARED, ndev->name, ndev))
1194 pr_warning("%s: EBUS could not get irq: %d\n", hi->devname, irq1);
1195 unregister_netdev (ndev);
1196 free_irq (irq0, ndev);
1197 OS_kfree (netdev_priv(ndev));
1204 /* setup board identification information */
1209 hdw_sn_get (hi, brdno); /* also sets PROM format type (promfmt)
1210 * for later usage */
1212 switch (hi->promfmt)
1214 case PROM_FORMAT_TYPE1:
1215 memcpy (ndev->dev_addr, (FLD_TYPE1 *) (hi->mfg_info.pft1.Serial), 6);
1216 memcpy (&tmp, (FLD_TYPE1 *) (hi->mfg_info.pft1.Id), 4); /* unaligned data
1218 ci->brd_id = cpu_to_be32 (tmp);
1220 case PROM_FORMAT_TYPE2:
1221 memcpy (ndev->dev_addr, (FLD_TYPE2 *) (hi->mfg_info.pft2.Serial), 6);
1222 memcpy (&tmp, (FLD_TYPE2 *) (hi->mfg_info.pft2.Id), 4); /* unaligned data
1224 ci->brd_id = cpu_to_be32 (tmp);
1228 memset (ndev->dev_addr, 0, 6);
1233 sbeid_set_hdwbid (ci); /* requires bid to be preset */
1235 sbeid_set_bdtype (ci); /* requires hdw_bid to be preset */
1240 #ifdef CONFIG_PROC_FS
1241 sbecom_proc_brd_init (ci);
1243 #if defined(SBE_ISR_TASKLET)
1244 tasklet_enable (&ci->ci_musycc_isr_tasklet);
1248 if ((error_flag = c4_init2 (ci)) != SBE_DRVR_SUCCESS)
1250 #ifdef CONFIG_PROC_FS
1251 sbecom_proc_brd_cleanup (ci);
1253 unregister_netdev (ndev);
1254 free_irq (irq1, ndev);
1255 free_irq (irq0, ndev);
1256 OS_kfree (netdev_priv(ndev));
1258 return 0; /* failure, error_flag is set */
1268 pr_warning("%s\n", pmcc4_OSSI_release);
1269 if ((rtn = c4hw_attach_all ()))
1270 return -rtn; /* installation failure - see system log */
1272 /* housekeeping notifications */
1273 if (log_level != log_level_default)
1274 pr_info("NOTE: driver parameter <log_level> changed from default %d to %d.\n",
1275 log_level_default, log_level);
1276 if (max_mru != max_mru_default)
1277 pr_info("NOTE: driver parameter <max_mru> changed from default %d to %d.\n",
1278 max_mru_default, max_mru);
1279 if (max_mtu != max_mtu_default)
1280 pr_info("NOTE: driver parameter <max_mtu> changed from default %d to %d.\n",
1281 max_mtu_default, max_mtu);
1282 if (max_rxdesc_used != max_rxdesc_default)
1284 if (max_rxdesc_used > 2000)
1285 max_rxdesc_used = 2000; /* out-of-bounds reset */
1286 pr_info("NOTE: driver parameter <max_rxdesc_used> changed from default %d to %d.\n",
1287 max_rxdesc_default, max_rxdesc_used);
1289 if (max_txdesc_used != max_txdesc_default)
1291 if (max_txdesc_used > 1000)
1292 max_txdesc_used = 1000; /* out-of-bounds reset */
1293 pr_info("NOTE: driver parameter <max_txdesc_used> changed from default %d to %d.\n",
1294 max_txdesc_default, max_txdesc_used);
1296 return 0; /* installation success */
1301 * find any still allocated hdlc registrations and unregister via call to
1310 struct net_device *ndev;
1313 for (i = 0, hi = hdw_info; i < MAX_BOARDS; i++, hi++)
1315 if (hi->ndev) /* a board has been attached */
1317 ci = (ci_t *)(netdev_priv(hi->ndev));
1318 for (j = 0; j < ci->max_port; j++)
1319 for (k = 0; k < MUSYCC_NCHANS; k++)
1320 if ((ndev = ci->port[j].chan[k]->user))
1322 do_deluser (ndev, 0);
1330 c4_mod_remove (void)
1332 cleanup_hdlc (); /* delete any missed channels */
1336 pr_info("SBE - driver removed.\n");
1339 module_init (c4_mod_init);
1340 module_exit (c4_mod_remove);
1342 #ifndef SBE_INCLUDE_SYMBOLS
1343 #ifndef CONFIG_SBE_WANC24_NCOMM
1344 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
1350 MODULE_AUTHOR ("SBE Technical Services <support@sbei.com>");
1351 MODULE_DESCRIPTION ("wanPCI-CxT1E1 Generic HDLC WAN Driver module");
1352 #ifdef MODULE_LICENSE
1353 MODULE_LICENSE ("GPL");
1356 /*** End-of-File ***/