diff options
Diffstat (limited to 'drivers/isdn/icn/icn.c')
| -rw-r--r-- | drivers/isdn/icn/icn.c | 1693 |
1 files changed, 0 insertions, 1693 deletions
diff --git a/drivers/isdn/icn/icn.c b/drivers/isdn/icn/icn.c deleted file mode 100644 index 46d957c34be1..000000000000 --- a/drivers/isdn/icn/icn.c +++ /dev/null @@ -1,1693 +0,0 @@ -/* $Id: icn.c,v 1.65.6.8 2001/09/23 22:24:55 kai Exp $ - * - * ISDN low-level module for the ICN active ISDN-Card. - * - * Copyright 1994,95,96 by Fritz Elfert (fritz@isdn4linux.de) - * - * This software may be used and distributed according to the terms - * of the GNU General Public License, incorporated herein by reference. - * - */ - -#include "icn.h" -#include <linux/module.h> -#include <linux/init.h> -#include <linux/slab.h> -#include <linux/sched.h> - -static int portbase = ICN_BASEADDR; -static unsigned long membase = ICN_MEMADDR; -static char *icn_id = "\0"; -static char *icn_id2 = "\0"; - -MODULE_DESCRIPTION("ISDN4Linux: Driver for ICN active ISDN card"); -MODULE_AUTHOR("Fritz Elfert"); -MODULE_LICENSE("GPL"); -module_param(portbase, int, 0); -MODULE_PARM_DESC(portbase, "Port address of first card"); -module_param(membase, ulong, 0); -MODULE_PARM_DESC(membase, "Shared memory address of all cards"); -module_param(icn_id, charp, 0); -MODULE_PARM_DESC(icn_id, "ID-String of first card"); -module_param(icn_id2, charp, 0); -MODULE_PARM_DESC(icn_id2, "ID-String of first card, second S0 (4B only)"); - -/* - * Verbose bootcode- and protocol-downloading. - */ -#undef BOOT_DEBUG - -/* - * Verbose Shmem-Mapping. - */ -#undef MAP_DEBUG - -static char -*revision = "$Revision: 1.65.6.8 $"; - -static int icn_addcard(int, char *, char *); - -/* - * Free send-queue completely. - * Parameter: - * card = pointer to card struct - * channel = channel number - */ -static void -icn_free_queue(icn_card *card, int channel) -{ - struct sk_buff_head *queue = &card->spqueue[channel]; - struct sk_buff *skb; - - skb_queue_purge(queue); - card->xlen[channel] = 0; - card->sndcount[channel] = 0; - if ((skb = card->xskb[channel])) { - card->xskb[channel] = NULL; - dev_kfree_skb(skb); - } -} - -/* Put a value into a shift-register, highest bit first. - * Parameters: - * port = port for output (bit 0 is significant) - * val = value to be output - * firstbit = Bit-Number of highest bit - * bitcount = Number of bits to output - */ -static inline void -icn_shiftout(unsigned short port, - unsigned long val, - int firstbit, - int bitcount) -{ - - register u_char s; - register u_char c; - - for (s = firstbit, c = bitcount; c > 0; s--, c--) - OUTB_P((u_char) ((val >> s) & 1) ? 0xff : 0, port); -} - -/* - * disable a cards shared memory - */ -static inline void -icn_disable_ram(icn_card *card) -{ - OUTB_P(0, ICN_MAPRAM); -} - -/* - * enable a cards shared memory - */ -static inline void -icn_enable_ram(icn_card *card) -{ - OUTB_P(0xff, ICN_MAPRAM); -} - -/* - * Map a cards channel0 (Bank0/Bank8) or channel1 (Bank4/Bank12) - * - * must called with holding the devlock - */ -static inline void -icn_map_channel(icn_card *card, int channel) -{ -#ifdef MAP_DEBUG - printk(KERN_DEBUG "icn_map_channel %d %d\n", dev.channel, channel); -#endif - if ((channel == dev.channel) && (card == dev.mcard)) - return; - if (dev.mcard) - icn_disable_ram(dev.mcard); - icn_shiftout(ICN_BANK, chan2bank[channel], 3, 4); /* Select Bank */ - icn_enable_ram(card); - dev.mcard = card; - dev.channel = channel; -#ifdef MAP_DEBUG - printk(KERN_DEBUG "icn_map_channel done\n"); -#endif -} - -/* - * Lock a cards channel. - * Return 0 if requested card/channel is unmapped (failure). - * Return 1 on success. - * - * must called with holding the devlock - */ -static inline int -icn_lock_channel(icn_card *card, int channel) -{ - register int retval; - -#ifdef MAP_DEBUG - printk(KERN_DEBUG "icn_lock_channel %d\n", channel); -#endif - if ((dev.channel == channel) && (card == dev.mcard)) { - dev.chanlock++; - retval = 1; -#ifdef MAP_DEBUG - printk(KERN_DEBUG "icn_lock_channel %d OK\n", channel); -#endif - } else { - retval = 0; -#ifdef MAP_DEBUG - printk(KERN_DEBUG "icn_lock_channel %d FAILED, dc=%d\n", channel, dev.channel); -#endif - } - return retval; -} - -/* - * Release current card/channel lock - * - * must called with holding the devlock - */ -static inline void -__icn_release_channel(void) -{ -#ifdef MAP_DEBUG - printk(KERN_DEBUG "icn_release_channel l=%d\n", dev.chanlock); -#endif - if (dev.chanlock > 0) - dev.chanlock--; -} - -/* - * Release current card/channel lock - */ -static inline void -icn_release_channel(void) -{ - ulong flags; - - spin_lock_irqsave(&dev.devlock, flags); - __icn_release_channel(); - spin_unlock_irqrestore(&dev.devlock, flags); -} - -/* - * Try to map and lock a cards channel. - * Return 1 on success, 0 on failure. - */ -static inline int -icn_trymaplock_channel(icn_card *card, int channel) -{ - ulong flags; - -#ifdef MAP_DEBUG - printk(KERN_DEBUG "trymaplock c=%d dc=%d l=%d\n", channel, dev.channel, - dev.chanlock); -#endif - spin_lock_irqsave(&dev.devlock, flags); - if ((!dev.chanlock) || - ((dev.channel == channel) && (dev.mcard == card))) { - dev.chanlock++; - icn_map_channel(card, channel); - spin_unlock_irqrestore(&dev.devlock, flags); -#ifdef MAP_DEBUG - printk(KERN_DEBUG "trymaplock %d OK\n", channel); -#endif - return 1; - } - spin_unlock_irqrestore(&dev.devlock, flags); -#ifdef MAP_DEBUG - printk(KERN_DEBUG "trymaplock %d FAILED\n", channel); -#endif - return 0; -} - -/* - * Release current card/channel lock, - * then map same or other channel without locking. - */ -static inline void -icn_maprelease_channel(icn_card *card, int channel) -{ - ulong flags; - -#ifdef MAP_DEBUG - printk(KERN_DEBUG "map_release c=%d l=%d\n", channel, dev.chanlock); -#endif - spin_lock_irqsave(&dev.devlock, flags); - if (dev.chanlock > 0) - dev.chanlock--; - if (!dev.chanlock) - icn_map_channel(card, channel); - spin_unlock_irqrestore(&dev.devlock, flags); -} - -/* Get Data from the B-Channel, assemble fragmented packets and put them - * into receive-queue. Wake up any B-Channel-reading processes. - * This routine is called via timer-callback from icn_pollbchan(). - */ - -static void -icn_pollbchan_receive(int channel, icn_card *card) -{ - int mch = channel + ((card->secondhalf) ? 2 : 0); - int eflag; - int cnt; - struct sk_buff *skb; - - if (icn_trymaplock_channel(card, mch)) { - while (rbavl) { - cnt = readb(&rbuf_l); - if ((card->rcvidx[channel] + cnt) > 4000) { - printk(KERN_WARNING - "icn: (%s) bogus packet on ch%d, dropping.\n", - CID, - channel + 1); - card->rcvidx[channel] = 0; - eflag = 0; - } else { - memcpy_fromio(&card->rcvbuf[channel][card->rcvidx[channel]], - &rbuf_d, cnt); - card->rcvidx[channel] += cnt; - eflag = readb(&rbuf_f); - } - rbnext; - icn_maprelease_channel(card, mch & 2); - if (!eflag) { - if ((cnt = card->rcvidx[channel])) { - if (!(skb = dev_alloc_skb(cnt))) { - printk(KERN_WARNING "icn: receive out of memory\n"); - break; - } - memcpy(skb_put(skb, cnt), card->rcvbuf[channel], cnt); - card->rcvidx[channel] = 0; - card->interface.rcvcallb_skb(card->myid, channel, skb); - } - } - if (!icn_trymaplock_channel(card, mch)) - break; - } - icn_maprelease_channel(card, mch & 2); - } -} - -/* Send data-packet to B-Channel, split it up into fragments of - * ICN_FRAGSIZE length. If last fragment is sent out, signal - * success to upper layers via statcallb with ISDN_STAT_BSENT argument. - * This routine is called via timer-callback from icn_pollbchan() or - * directly from icn_sendbuf(). - */ - -static void -icn_pollbchan_send(int channel, icn_card *card) -{ - int mch = channel + ((card->secondhalf) ? 2 : 0); - int cnt; - unsigned long flags; - struct sk_buff *skb; - isdn_ctrl cmd; - - if (!(card->sndcount[channel] || card->xskb[channel] || - !skb_queue_empty(&card->spqueue[channel]))) - return; - if (icn_trymaplock_channel(card, mch)) { - while (sbfree && - (card->sndcount[channel] || - !skb_queue_empty(&card->spqueue[channel]) || - card->xskb[channel])) { - spin_lock_irqsave(&card->lock, flags); - if (card->xmit_lock[channel]) { - spin_unlock_irqrestore(&card->lock, flags); - break; - } - card->xmit_lock[channel]++; - spin_unlock_irqrestore(&card->lock, flags); - skb = card->xskb[channel]; - if (!skb) { - skb = skb_dequeue(&card->spqueue[channel]); - if (skb) { - /* Pop ACK-flag off skb. - * Store length to xlen. - */ - if (*(skb_pull(skb, 1))) - card->xlen[channel] = skb->len; - else - card->xlen[channel] = 0; - } - } - if (!skb) - break; - if (skb->len > ICN_FRAGSIZE) { - writeb(0xff, &sbuf_f); - cnt = ICN_FRAGSIZE; - } else { - writeb(0x0, &sbuf_f); - cnt = skb->len; - } - writeb(cnt, &sbuf_l); - memcpy_toio(&sbuf_d, skb->data, cnt); - skb_pull(skb, cnt); - sbnext; /* switch to next buffer */ - icn_maprelease_channel(card, mch & 2); - spin_lock_irqsave(&card->lock, flags); - card->sndcount[channel] -= cnt; - if (!skb->len) { - if (card->xskb[channel]) - card->xskb[channel] = NULL; - card->xmit_lock[channel] = 0; - spin_unlock_irqrestore(&card->lock, flags); - dev_kfree_skb(skb); - if (card->xlen[channel]) { - cmd.command = ISDN_STAT_BSENT; - cmd.driver = card->myid; - cmd.arg = channel; - cmd.parm.length = card->xlen[channel]; - card->interface.statcallb(&cmd); - } - } else { - card->xskb[channel] = skb; - card->xmit_lock[channel] = 0; - spin_unlock_irqrestore(&card->lock, flags); - } - if (!icn_trymaplock_channel(card, mch)) - break; - } - icn_maprelease_channel(card, mch & 2); - } -} - -/* Send/Receive Data to/from the B-Channel. - * This routine is called via timer-callback. - * It schedules itself while any B-Channel is open. - */ - -static void -icn_pollbchan(unsigned long data) -{ - icn_card *card = (icn_card *) data; - unsigned long flags; - - if (card->flags & ICN_FLAGS_B1ACTIVE) { - icn_pollbchan_receive(0, card); - icn_pollbchan_send(0, card); - } - if (card->flags & ICN_FLAGS_B2ACTIVE) { - icn_pollbchan_receive(1, card); - icn_pollbchan_send(1, card); - } - if (card->flags & (ICN_FLAGS_B1ACTIVE | ICN_FLAGS_B2ACTIVE)) { - /* schedule b-channel polling again */ - spin_lock_irqsave(&card->lock, flags); - mod_timer(&card->rb_timer, jiffies + ICN_TIMER_BCREAD); - card->flags |= ICN_FLAGS_RBTIMER; - spin_unlock_irqrestore(&card->lock, flags); - } else - card->flags &= ~ICN_FLAGS_RBTIMER; -} - -typedef struct icn_stat { - char *statstr; - int command; - int action; -} icn_stat; -/* *INDENT-OFF* */ -static icn_stat icn_stat_table[] = -{ - {"BCON_", ISDN_STAT_BCONN, 1}, /* B-Channel connected */ - {"BDIS_", ISDN_STAT_BHUP, 2}, /* B-Channel disconnected */ - /* - ** add d-channel connect and disconnect support to link-level - */ - {"DCON_", ISDN_STAT_DCONN, 10}, /* D-Channel connected */ - {"DDIS_", ISDN_STAT_DHUP, 11}, /* D-Channel disconnected */ - {"DCAL_I", ISDN_STAT_ICALL, 3}, /* Incoming call dialup-line */ - {"DSCA_I", ISDN_STAT_ICALL, 3}, /* Incoming call 1TR6-SPV */ - {"FCALL", ISDN_STAT_ICALL, 4}, /* Leased line connection up */ - {"CIF", ISDN_STAT_CINF, 5}, /* Charge-info, 1TR6-type */ - {"AOC", ISDN_STAT_CINF, 6}, /* Charge-info, DSS1-type */ - {"CAU", ISDN_STAT_CAUSE, 7}, /* Cause code */ - {"TEI OK", ISDN_STAT_RUN, 0}, /* Card connected to wallplug */ - {"E_L1: ACT FAIL", ISDN_STAT_BHUP, 8}, /* Layer-1 activation failed */ - {"E_L2: DATA LIN", ISDN_STAT_BHUP, 8}, /* Layer-2 data link lost */ - {"E_L1: ACTIVATION FAILED", - ISDN_STAT_BHUP, 8}, /* Layer-1 activation failed */ - {NULL, 0, -1} -}; -/* *INDENT-ON* */ - - -/* - * Check Statusqueue-Pointer from isdn-cards. - * If there are new status-replies from the interface, check - * them against B-Channel-connects/disconnects and set flags accordingly. - * Wake-Up any processes, who are reading the status-device. - * If there are B-Channels open, initiate a timer-callback to - * icn_pollbchan(). - * This routine is called periodically via timer. - */ - -static void -icn_parse_status(u_char *status, int channel, icn_card *card) -{ - icn_stat *s = icn_stat_table; - int action = -1; - unsigned long flags; - isdn_ctrl cmd; - - while (s->statstr) { - if (!strncmp(status, s->statstr, strlen(s->statstr))) { - cmd.command = s->command; - action = s->action; - break; - } - s++; - } - if (action == -1) - return; - cmd.driver = card->myid; - cmd.arg = channel; - switch (action) { - case 11: - spin_lock_irqsave(&card->lock, flags); - icn_free_queue(card, channel); - card->rcvidx[channel] = 0; - - if (card->flags & - ((channel) ? ICN_FLAGS_B2ACTIVE : ICN_FLAGS_B1ACTIVE)) { - - isdn_ctrl ncmd; - - card->flags &= ~((channel) ? - ICN_FLAGS_B2ACTIVE : ICN_FLAGS_B1ACTIVE); - - memset(&ncmd, 0, sizeof(ncmd)); - - ncmd.driver = card->myid; - ncmd.arg = channel; - ncmd.command = ISDN_STAT_BHUP; - spin_unlock_irqrestore(&card->lock, flags); - card->interface.statcallb(&cmd); - } else - spin_unlock_irqrestore(&card->lock, flags); - break; - case 1: - spin_lock_irqsave(&card->lock, flags); - icn_free_queue(card, channel); - card->flags |= (channel) ? - ICN_FLAGS_B2ACTIVE : ICN_FLAGS_B1ACTIVE; - spin_unlock_irqrestore(&card->lock, flags); - break; - case 2: - spin_lock_irqsave(&card->lock, flags); - card->flags &= ~((channel) ? - ICN_FLAGS_B2ACTIVE : ICN_FLAGS_B1ACTIVE); - icn_free_queue(card, channel); - card->rcvidx[channel] = 0; - spin_unlock_irqrestore(&card->lock, flags); - break; - case 3: - { - char *t = status + 6; - char *s = strchr(t, ','); - - *s++ = '\0'; - strlcpy(cmd.parm.setup.phone, t, - sizeof(cmd.parm.setup.phone)); - s = strchr(t = s, ','); - *s++ = '\0'; - if (!strlen(t)) - cmd.parm.setup.si1 = 0; - else - cmd.parm.setup.si1 = - simple_strtoul(t, NULL, 10); - s = strchr(t = s, ','); - *s++ = '\0'; - if (!strlen(t)) - cmd.parm.setup.si2 = 0; - else - cmd.parm.setup.si2 = - simple_strtoul(t, NULL, 10); - strlcpy(cmd.parm.setup.eazmsn, s, - sizeof(cmd.parm.setup.eazmsn)); - } - cmd.parm.setup.plan = 0; - cmd.parm.setup.screen = 0; - break; - case 4: - sprintf(cmd.parm.setup.phone, "LEASED%d", card->myid); - sprintf(cmd.parm.setup.eazmsn, "%d", channel + 1); - cmd.parm.setup.si1 = 7; - cmd.parm.setup.si2 = 0; - cmd.parm.setup.plan = 0; - cmd.parm.setup.screen = 0; - break; - case 5: - strlcpy(cmd.parm.num, status + 3, sizeof(cmd.parm.num)); - break; - case 6: - snprintf(cmd.parm.num, sizeof(cmd.parm.num), "%d", - (int) simple_strtoul(status + 7, NULL, 16)); - break; - case 7: - status += 3; - if (strlen(status) == 4) - snprintf(cmd.parm.num, sizeof(cmd.parm.num), "%s%c%c", - status + 2, *status, *(status + 1)); - else - strlcpy(cmd.parm.num, status + 1, sizeof(cmd.parm.num)); - break; - case 8: - spin_lock_irqsave(&card->lock, flags); - card->flags &= ~ICN_FLAGS_B1ACTIVE; - icn_free_queue(card, 0); - card->rcvidx[0] = 0; - spin_unlock_irqrestore(&card->lock, flags); - cmd.arg = 0; - cmd.driver = card->myid; - card->interface.statcallb(&cmd); - cmd.command = ISDN_STAT_DHUP; - cmd.arg = 0; - cmd.driver = card->myid; - card->interface.statcallb(&cmd); - cmd.command = ISDN_STAT_BHUP; - spin_lock_irqsave(&card->lock, flags); - card->flags &= ~ICN_FLAGS_B2ACTIVE; - icn_free_queue(card, 1); - card->rcvidx[1] = 0; - spin_unlock_irqrestore(&card->lock, flags); - cmd.arg = 1; - cmd.driver = card->myid; - card->interface.statcallb(&cmd); - cmd.command = ISDN_STAT_DHUP; - cmd.arg = 1; - cmd.driver = card->myid; - break; - } - card->interface.statcallb(&cmd); - return; -} - -static void -icn_putmsg(icn_card *card, unsigned char c) -{ - ulong flags; - - spin_lock_irqsave(&card->lock, flags); - *card->msg_buf_write++ = (c == 0xff) ? '\n' : c; - if (card->msg_buf_write == card->msg_buf_read) { - if (++card->msg_buf_read > card->msg_buf_end) - card->msg_buf_read = card->msg_buf; - } - if (card->msg_buf_write > card->msg_buf_end) - card->msg_buf_write = card->msg_buf; - spin_unlock_irqrestore(&card->lock, flags); -} - -static void -icn_polldchan(unsigned long data) -{ - icn_card *card = (icn_card *) data; - int mch = card->secondhalf ? 2 : 0; - int avail = 0; - int left; - u_char c; - int ch; - unsigned long flags; - int i; - u_char *p; - isdn_ctrl cmd; - - if (icn_trymaplock_channel(card, mch)) { - avail = msg_avail; - for (left = avail, i = readb(&msg_o); left > 0; i++, left--) { - c = readb(&dev.shmem->comm_buffers.iopc_buf[i & 0xff]); - icn_putmsg(card, c); - if (c == 0xff) { - card->imsg[card->iptr] = 0; - card->iptr = 0; - if (card->imsg[0] == '0' && card->imsg[1] >= '0' && - card->imsg[1] <= '2' && card->imsg[2] == ';') { - ch = (card->imsg[1] - '0') - 1; - p = &card->imsg[3]; - icn_parse_status(p, ch, card); - } else { - p = card->imsg; - if (!strncmp(p, "DRV1.", 5)) { - u_char vstr[10]; - u_char *q = vstr; - - printk(KERN_INFO "icn: (%s) %s\n", CID, p); - if (!strncmp(p + 7, "TC", 2)) { - card->ptype = ISDN_PTYPE_1TR6; - card->interface.features |= ISDN_FEATURE_P_1TR6; - printk(KERN_INFO - "icn: (%s) 1TR6-Protocol loaded and running\n", CID); - } - if (!strncmp(p + 7, "EC", 2)) { - card->ptype = ISDN_PTYPE_EURO; - card->interface.features |= ISDN_FEATURE_P_EURO; - printk(KERN_INFO - "icn: (%s) Euro-Protocol loaded and running\n", CID); - } - p = strstr(card->imsg, "BRV") + 3; - while (*p) { - if (*p >= '0' && *p <= '9') - *q++ = *p; - p++; - } - *q = '\0'; - strcat(vstr, "000"); - vstr[3] = '\0'; - card->fw_rev = (int) simple_strtoul(vstr, NULL, 10); - continue; - - } - } - } else { - card->imsg[card->iptr] = c; - if (card->iptr < 59) - card->iptr++; - } - } - writeb((readb(&msg_o) + avail) & 0xff, &msg_o); - icn_release_channel(); - } - if (avail) { - cmd.command = ISDN_STAT_STAVAIL; - cmd.driver = card->myid; - cmd.arg = avail; - card->interface.statcallb(&cmd); - } - spin_lock_irqsave(&card->lock, flags); - if (card->flags & (ICN_FLAGS_B1ACTIVE | ICN_FLAGS_B2ACTIVE)) - if (!(card->flags & ICN_FLAGS_RBTIMER)) { - /* schedule b-channel polling */ - card->flags |= ICN_FLAGS_RBTIMER; - del_timer(&card->rb_timer); - card->rb_timer.function = icn_pollbchan; - card->rb_timer.data = (unsigned long) card; - card->rb_timer.expires = jiffies + ICN_TIMER_BCREAD; - add_timer(&card->rb_timer); - } - /* schedule again */ - mod_timer(&card->st_timer, jiffies + ICN_TIMER_DCREAD); - spin_unlock_irqrestore(&card->lock, flags); -} - -/* Append a packet to the transmit buffer-queue. - * Parameters: - * channel = Number of B-channel - * skb = pointer to sk_buff - * card = pointer to card-struct - * Return: - * Number of bytes transferred, -E??? on error - */ - -static int -icn_sendbuf(int channel, int ack, struct sk_buff *skb, icn_card *card) -{ - int len = skb->len; - unsigned long flags; - struct sk_buff *nskb; - - if (len > 4000) { - printk(KERN_WARNING - "icn: Send packet too large\n"); - return -EINVAL; - } - if (len) { - if (!(card->flags & (channel) ? ICN_FLAGS_B2ACTIVE : ICN_FLAGS_B1ACTIVE)) - return 0; - if (card->sndcount[channel] > ICN_MAX_SQUEUE) - return 0; - /* TODO test headroom or use skb->nb to flag ACK */ - nskb = skb_clone(skb, GFP_ATOMIC); - if (nskb) { - /* Push ACK flag as one - * byte in front of data. - */ - *(skb_push(nskb, 1)) = ack ? 1 : 0; - skb_queue_tail(&card->spqueue[channel], nskb); - dev_kfree_skb(skb); - } else - len = 0; - spin_lock_irqsave(&card->lock, flags); - card->sndcount[channel] += len; - spin_unlock_irqrestore(&card->lock, flags); - } - return len; -} - -/* - * Check card's status after starting the bootstrap loader. - * On entry, the card's shared memory has already to be mapped. - * Return: - * 0 on success (Boot loader ready) - * -EIO on failure (timeout) - */ -static int -icn_check_loader(int cardnumber) -{ - int timer = 0; - - while (1) { -#ifdef BOOT_DEBUG - printk(KERN_DEBUG "Loader %d ?\n", cardnumber); -#endif - if (readb(&dev.shmem->data_control.scns) || - readb(&dev.shmem->data_control.scnr)) { - if (timer++ > 5) { - printk(KERN_WARNING - "icn: Boot-Loader %d timed out.\n", - cardnumber); - icn_release_channel(); - return -EIO; - } -#ifdef BOOT_DEBUG - printk(KERN_DEBUG "Loader %d TO?\n", cardnumber); -#endif - msleep_interruptible(ICN_BOOT_TIMEOUT1); - } else { -#ifdef BOOT_DEBUG - printk(KERN_DEBUG "Loader %d OK\n", cardnumber); -#endif - icn_release_channel(); - return 0; - } - } -} - -/* Load the boot-code into the interface-card's memory and start it. - * Always called from user-process. - * - * Parameters: - * buffer = pointer to packet - * Return: - * 0 if successfully loaded - */ - -#ifdef BOOT_DEBUG -#define SLEEP(sec) { \ - int slsec = sec; \ - printk(KERN_DEBUG "SLEEP(%d)\n", slsec); \ - while (slsec) { \ - msleep_interruptible(1000); \ - slsec--; \ - } \ - } -#else -#define SLEEP(sec) -#endif - -static int -icn_loadboot(u_char __user *buffer, icn_card *card) -{ - int ret; - u_char *codebuf; - unsigned long flags; - -#ifdef BOOT_DEBUG - printk(KERN_DEBUG "icn_loadboot called, buffaddr=%08lx\n", (ulong) buffer); -#endif - if (!(codebuf = kmalloc(ICN_CODE_STAGE1, GFP_KERNEL))) { - printk(KERN_WARNING "icn: Could not allocate code buffer\n"); - ret = -ENOMEM; - goto out; - } - if (copy_from_user(codebuf, buffer, ICN_CODE_STAGE1)) { - ret = -EFAULT; - goto out_kfree; - } - if (!card->rvalid) { - if (!request_region(card->port, ICN_PORTLEN, card->regname)) { - printk(KERN_WARNING - "icn: (%s) ports 0x%03x-0x%03x in use.\n", - CID, - card->port, - card->port + ICN_PORTLEN); - ret = -EBUSY; - goto out_kfree; - } - card->rvalid = 1; - if (card->doubleS0) - card->other->rvalid = 1; - } - if (!dev.mvalid) { - if (!request_mem_region(dev.memaddr, 0x4000, "icn-isdn (all cards)")) { - printk(KERN_WARNING - "icn: memory at 0x%08lx in use.\n", dev.memaddr); - ret = -EBUSY; - goto out_kfree; - } - dev.shmem = ioremap(dev.memaddr, 0x4000); - dev.mvalid = 1; - } - OUTB_P(0, ICN_RUN); /* Reset Controller */ - OUTB_P(0, ICN_MAPRAM); /* Disable RAM */ - icn_shiftout(ICN_CFG, 0x0f, 3, 4); /* Windowsize= 16k */ - icn_shiftout(ICN_CFG, dev.memaddr, 23, 10); /* Set RAM-Addr. */ -#ifdef BOOT_DEBUG - printk(KERN_DEBUG "shmem=%08lx\n", dev.memaddr); -#endif - SLEEP(1); -#ifdef BOOT_DEBUG - printk(KERN_DEBUG "Map Bank 0\n"); -#endif - spin_lock_irqsave(&dev.devlock, flags); - icn_map_channel(card, 0); /* Select Bank 0 */ - icn_lock_channel(card, 0); /* Lock Bank 0 */ - spin_unlock_irqrestore(&dev.devlock, flags); - SLEEP(1); - memcpy_toio(dev.shmem, codebuf, ICN_CODE_STAGE1); /* Copy code */ -#ifdef BOOT_DEBUG - printk(KERN_DEBUG "Bootloader transferred\n"); -#endif - if (card->doubleS0) { - SLEEP(1); -#ifdef BOOT_DEBUG - printk(KERN_DEBUG "Map Bank 8\n"); -#endif - spin_lock_irqsave(&dev.devlock, flags); - __icn_release_channel(); - icn_map_channel(card, 2); /* Select Bank 8 */ - icn_lock_channel(card, 2); /* Lock Bank 8 */ - spin_unlock_irqrestore(&dev.devlock, flags); - SLEEP(1); - memcpy_toio(dev.shmem, codebuf, ICN_CODE_STAGE1); /* Copy code */ -#ifdef BOOT_DEBUG - printk(KERN_DEBUG "Bootloader transferred\n"); -#endif - } - SLEEP(1); - OUTB_P(0xff, ICN_RUN); /* Start Boot-Code */ - if ((ret = icn_check_loader(card->doubleS0 ? 2 : 1))) { - goto out_kfree; - } - if (!card->doubleS0) { - ret = 0; - goto out_kfree; - } - /* reached only, if we have a Double-S0-Card */ -#ifdef BOOT_DEBUG - printk(KERN_DEBUG "Map Bank 0\n"); -#endif - spin_lock_irqsave(&dev.devlock, flags); - icn_map_channel(card, 0); /* Select Bank 0 */ - icn_lock_channel(card, 0); /* Lock Bank 0 */ - spin_unlock_irqrestore(&dev.devlock, flags); - SLEEP(1); - ret = (icn_check_loader(1)); - -out_kfree: - kfree(codebuf); -out: - return ret; -} - -static int -icn_loadproto(u_char __user *buffer, icn_card *card) -{ - register u_char __user *p = buffer; - u_char codebuf[256]; - uint left = ICN_CODE_STAGE2; - uint cnt; - int timer; - unsigned long flags; - -#ifdef BOOT_DEBUG - printk(KERN_DEBUG "icn_loadproto called\n"); -#endif - if (!access_ok(VERIFY_READ, buffer, ICN_CODE_STAGE2)) - return -EFAULT; - timer = 0; - spin_lock_irqsave(&dev.devlock, flags); - if (card->secondhalf) { - icn_map_channel(card, 2); - icn_lock_channel(card, 2); - } else { - icn_map_channel(card, 0); - icn_lock_channel(card, 0); - } - spin_unlock_irqrestore(&dev.devlock, flags); - while (left) { - if (sbfree) { /* If there is a free buffer... */ - cnt = left; - if (cnt > 256) - cnt = 256; - if (copy_from_user(codebuf, p, cnt)) { - icn_maprelease_channel(card, 0); - return -EFAULT; - } - memcpy_toio(&sbuf_l, codebuf, cnt); /* copy data */ - sbnext; /* switch to next buffer */ - p += cnt; - left -= cnt; - timer = 0; - } else { -#ifdef BOOT_DEBUG - printk(KERN_DEBUG "boot 2 !sbfree\n"); -#endif - if (timer++ > 5) { - icn_maprelease_channel(card, 0); - return -EIO; - } - schedule_timeout_interruptible(10); - } - } - writeb(0x20, &sbuf_n); - timer = 0; - while (1) { - if (readb(&cmd_o) || readb(&cmd_i)) { -#ifdef BOOT_DEBUG - printk(KERN_DEBUG "Proto?\n"); -#endif - if (timer++ > 5) { - printk(KERN_WARNING - "icn: (%s) Protocol timed out.\n", - CID); -#ifdef BOOT_DEBUG - printk(KERN_DEBUG "Proto TO!\n"); -#endif - icn_maprelease_channel(card, 0); - return -EIO; - } -#ifdef BOOT_DEBUG - printk(KERN_DEBUG "Proto TO?\n"); -#endif - msleep_interruptible(ICN_BOOT_TIMEOUT1); - } else { - if ((card->secondhalf) || (!card->doubleS0)) { -#ifdef BOOT_DEBUG - printk(KERN_DEBUG "Proto loaded, install poll-timer %d\n", - card->secondhalf); -#endif - spin_lock_irqsave(&card->lock, flags); - init_timer(&card->st_timer); - card->st_timer.expires = jiffies + ICN_TIMER_DCREAD; - card->st_timer.function = icn_polldchan; - card->st_timer.data = (unsigned long) card; - add_timer(&card->st_timer); - card->flags |= ICN_FLAGS_RUNNING; - if (card->doubleS0) { - init_timer(&card->other->st_timer); - card->other->st_timer.expires = jiffies + ICN_TIMER_DCREAD; - card->other->st_timer.function = icn_polldchan; - card->other->st_timer.data = (unsigned long) card->other; - add_timer(&card->other->st_timer); - card->other->flags |= ICN_FLAGS_RUNNING; - } - spin_unlock_irqrestore(&card->lock, flags); - } - icn_maprelease_channel(card, 0); - return 0; - } - } -} - -/* Read the Status-replies from the Interface */ -static int -icn_readstatus(u_char __user *buf, int len, icn_card *card) -{ - int count; - u_char __user *p; - - for (p = buf, count = 0; count < len; p++, count++) { - if (card->msg_buf_read == card->msg_buf_write) - return count; - if (put_user(*card->msg_buf_read++, p)) - return -EFAULT; - if (card->msg_buf_read > card->msg_buf_end) - card->msg_buf_read = card->msg_buf; - } - return count; -} - -/* Put command-strings into the command-queue of the Interface */ -static int -icn_writecmd(const u_char *buf, int len, int user, icn_card *card) -{ - int mch = card->secondhalf ? 2 : 0; - int pp; - int i; - int count; - int xcount; - int ocount; - int loop; - unsigned long flags; - int lastmap_channel; - struct icn_card *lastmap_card; - u_char *p; - isdn_ctrl cmd; - u_char msg[0x100]; - - ocount = 1; - xcount = loop = 0; - while (len) { - count = cmd_free; - if (count > len) - count = len; - if (user) { - if (copy_from_user(msg, buf, count)) - return -EFAULT; - } else - memcpy(msg, buf, count); - - spin_lock_irqsave(&dev.devlock, flags); - lastmap_card = dev.mcard; - lastmap_channel = dev.channel; - icn_map_channel(card, mch); - - icn_putmsg(card, '>'); - for (p = msg, pp = readb(&cmd_i), i = count; i > 0; i--, p++, pp - ++) { - writeb((*p == '\n') ? 0xff : *p, - &dev.shmem->comm_buffers.pcio_buf[pp & 0xff]); - len--; - xcount++; - icn_putmsg(card, *p); - if ((*p == '\n') && (i > 1)) { - icn_putmsg(card, '>'); - ocount++; - } - ocount++; - } - writeb((readb(&cmd_i) + count) & 0xff, &cmd_i); - if (lastmap_card) - icn_map_channel(lastmap_card, lastmap_channel); - spin_unlock_irqrestore(&dev.devlock, flags); - if (len) { - mdelay(1); - if (loop++ > 20) - break; - } else - break; - } - if (len && (!user)) - printk(KERN_WARNING "icn: writemsg incomplete!\n"); - cmd.command = ISDN_STAT_STAVAIL; - cmd.driver = card->myid; - cmd.arg = ocount; - card->interface.statcallb(&cmd); - return xcount; -} - -/* - * Delete card's pending timers, send STOP to linklevel - */ -static void -icn_stopcard(icn_card *card) -{ - unsigned long flags; - isdn_ctrl cmd; - - spin_lock_irqsave(&card->lock, flags); - if (card->flags & ICN_FLAGS_RUNNING) { - card->flags &= ~ICN_FLAGS_RUNNING; - del_timer(&card->st_timer); - del_timer(&card->rb_timer); - spin_unlock_irqrestore(&card->lock, flags); - cmd.command = ISDN_STAT_STOP; - cmd.driver = card->myid; - card->interface.statcallb(&cmd); - if (card->doubleS0) - icn_stopcard(card->other); - } else - spin_unlock_irqrestore(&card->lock, flags); -} - -static void -icn_stopallcards(void) -{ - icn_card *p = cards; - - while (p) { - icn_stopcard(p); - p = p->next; - } -} - -/* - * Unmap all cards, because some of them may be mapped accidetly during - * autoprobing of some network drivers (SMC-driver?) - */ -static void -icn_disable_cards(void) -{ - icn_card *card = cards; - - while (card) { - if (!request_region(card->port, ICN_PORTLEN, "icn-isdn")) { - printk(KERN_WARNING - "icn: (%s) ports 0x%03x-0x%03x in use.\n", - CID, - card->port, - card->port + ICN_PORTLEN); - } else { - OUTB_P(0, ICN_RUN); /* Reset Controller */ - OUTB_P(0, ICN_MAPRAM); /* Disable RAM */ - release_region(card->port, ICN_PORTLEN); - } - card = card->next; - } -} - -static int -icn_command(isdn_ctrl *c, icn_card *card) -{ - ulong a; - ulong flags; - int i; - char cbuf[80]; - isdn_ctrl cmd; - icn_cdef cdef; - char __user *arg; - - switch (c->command) { - case ISDN_CMD_IOCTL: - memcpy(&a, c->parm.num, sizeof(ulong)); - arg = (char __user *)a; - switch (c->arg) { - case ICN_IOCTL_SETMMIO: - if (dev.memaddr != (a & 0x0ffc000)) { - if (!request_mem_region(a & 0x0ffc000, 0x4000, "icn-isdn (all cards)")) { - printk(KERN_WARNING - "icn: memory at 0x%08lx in use.\n", - a & 0x0ffc000); - return -EINVAL; - } - release_mem_region(a & 0x0ffc000, 0x4000); - icn_stopallcards(); - spin_lock_irqsave(&card->lock, flags); - if (dev.mvalid) { - iounmap(dev.shmem); - release_mem_region(dev.memaddr, 0x4000); - } - dev.mvalid = 0; - dev.memaddr = a & 0x0ffc000; - spin_unlock_irqrestore(&card->lock, flags); - printk(KERN_INFO - "icn: (%s) mmio set to 0x%08lx\n", - CID, - dev.memaddr); - } - break; - case ICN_IOCTL_GETMMIO: - return (long) dev.memaddr; - case ICN_IOCTL_SETPORT: - if (a == 0x300 || a == 0x310 || a == 0x320 || a == 0x330 - || a == 0x340 || a == 0x350 || a == 0x360 || - a == 0x308 || a == 0x318 || a == 0x328 || a == 0x338 - || a == 0x348 || a == 0x358 || a == 0x368) { - if (card->port != (unsigned short) a) { - if (!request_region((unsigned short) a, ICN_PORTLEN, "icn-isdn")) { - printk(KERN_WARNING - "icn: (%s) ports 0x%03x-0x%03x in use.\n", - CID, (int) a, (int) a + ICN_PORTLEN); - return -EINVAL; - } - release_region((unsigned short) a, ICN_PORTLEN); - icn_stopcard(card); - spin_lock_irqsave(&card->lock, flags); - if (card->rvalid) - release_region(card->port, ICN_PORTLEN); - card->port = (unsigned short) a; - card->rvalid = 0; - if (card->doubleS0) { - card->other->port = (unsigned short) a; - card->other->rvalid = 0; - } - spin_unlock_irqrestore(&card->lock, flags); - printk(KERN_INFO - "icn: (%s) port set to 0x%03x\n", - CID, card->port); - } - } else - return -EINVAL; - break; - case ICN_IOCTL_GETPORT: - return (int) card->port; - case ICN_IOCTL_GETDOUBLE: - return (int) card->doubleS0; - case ICN_IOCTL_DEBUGVAR: - if (copy_to_user(arg, - &card, - sizeof(ulong))) - return -EFAULT; - a += sizeof(ulong); - { - ulong l = (ulong)&dev; - if (copy_to_user(arg, - &l, - sizeof(ulong))) - return -EFAULT; - } - return 0; - case ICN_IOCTL_LOADBOOT: - if (dev.firstload) { - icn_disable_cards(); - dev.firstload = 0; - } - icn_stopcard(card); - return (icn_loadboot(arg, card)); - case ICN_IOCTL_LOADPROTO: - icn_stopcard(card); - if ((i = (icn_loadproto(arg, card)))) - return i; - if (card->doubleS0) - i = icn_loadproto(arg + ICN_CODE_STAGE2, card->other); - return i; - break; - case ICN_IOCTL_ADDCARD: - if (!dev.firstload) - return -EBUSY; - if (copy_from_user(&cdef, - arg, - sizeof(cdef))) - return -EFAULT; - return (icn_addcard(cdef.port, cdef.id1, cdef.id2)); - break; - case ICN_IOCTL_LEASEDCFG: - if (a) { - if (!card->leased) { - card->leased = 1; - while (card->ptype == ISDN_PTYPE_UNKNOWN) { - msleep_interruptible(ICN_BOOT_TIMEOUT1); - } - msleep_interruptible(ICN_BOOT_TIMEOUT1); - sprintf(cbuf, "00;FV2ON\n01;EAZ%c\n02;EAZ%c\n", - (a & 1) ? '1' : 'C', (a & 2) ? '2' : 'C'); - i = icn_writecmd(cbuf, strlen(cbuf), 0, card); - printk(KERN_INFO - "icn: (%s) Leased-line mode enabled\n", - CID); - cmd.command = ISDN_STAT_RUN; - cmd.driver = card->myid; - cmd.arg = 0; - card->interface.statcallb(&cmd); - } - } else { - if (card->leased) { - card->leased = 0; - sprintf(cbuf, "00;FV2OFF\n"); - i = icn_writecmd(cbuf, strlen(cbuf), 0, card); - printk(KERN_INFO - "icn: (%s) Leased-line mode disabled\n", - CID); - cmd.command = ISDN_STAT_RUN; - cmd.driver = card->myid; - cmd.arg = 0; - card->interface.statcallb(&cmd); - } - } - return 0; - default: - return -EINVAL; - } - break; - case ISDN_CMD_DIAL: - if (!(card->flags & ICN_FLAGS_RUNNING)) - return -ENODEV; - if (card->leased) - break; - if ((c->arg & 255) < ICN_BCH) { - char *p; - char dcode[4]; - - a = c->arg; - p = c->parm.setup.phone; - if (*p == 's' || *p == 'S') { - /* Dial for SPV */ - p++; - strcpy(dcode, "SCA"); - } else - /* Normal Dial */ - strcpy(dcode, "CAL"); - snprintf(cbuf, sizeof(cbuf), - "%02d;D%s_R%s,%02d,%02d,%s\n", (int) (a + 1), - dcode, p, c->parm.setup.si1, - c->parm.setup.si2, c->parm.setup.eazmsn); - i = icn_writecmd(cbuf, strlen(cbuf), 0, card); - } - break; - case ISDN_CMD_ACCEPTD: - if (!(card->flags & ICN_FLAGS_RUNNING)) - return -ENODEV; - if (c->arg < ICN_BCH) { - a = c->arg + 1; - if (card->fw_rev >= 300) { - switch (card->l2_proto[a - 1]) { - case ISDN_PROTO_L2_X75I: - sprintf(cbuf, "%02d;BX75\n", (int) a); - break; - case ISDN_PROTO_L2_HDLC: - sprintf(cbuf, "%02d;BTRA\n", (int) a); - break; - } - i = icn_writecmd(cbuf, strlen(cbuf), 0, card); - } - sprintf(cbuf, "%02d;DCON_R\n", (int) a); - i = icn_writecmd(cbuf, strlen(cbuf), 0, card); - } - break; - case ISDN_CMD_ACCEPTB: - if (!(card->flags & ICN_FLAGS_RUNNING)) - return -ENODEV; - if (c->arg < ICN_BCH) { - a = c->arg + 1; - if (card->fw_rev >= 300) - switch (card->l2_proto[a - 1]) { - case ISDN_PROTO_L2_X75I: - sprintf(cbuf, "%02d;BCON_R,BX75\n", (int) a); - break; - case ISDN_PROTO_L2_HDLC: - sprintf(cbuf, "%02d;BCON_R,BTRA\n", (int) a); - break; - } else - sprintf(cbuf, "%02d;BCON_R\n", (int) a); - i = icn_writecmd(cbuf, strlen(cbuf), 0, card); - } - break; - case ISDN_CMD_HANGUP: - if (!(card->flags & ICN_FLAGS_RUNNING)) - return -ENODEV; - if (c->arg < ICN_BCH) { - a = c->arg + 1; - sprintf(cbuf, "%02d;BDIS_R\n%02d;DDIS_R\n", (int) a, (int) a); - i = icn_writecmd(cbuf, strlen(cbuf), 0, card); - } - break; - case ISDN_CMD_SETEAZ: - if (!(card->flags & ICN_FLAGS_RUNNING)) - return -ENODEV; - if (card->leased) - break; - if (c->arg < ICN_BCH) { - a = c->arg + 1; - if (card->ptype == ISDN_PTYPE_EURO) { - sprintf(cbuf, "%02d;MS%s%s\n", (int) a, - c->parm.num[0] ? "N" : "ALL", c->parm.num); - } else - sprintf(cbuf, "%02d;EAZ%s\n", (int) a, - c->parm.num[0] ? (char *)(c->parm.num) : "0123456789"); - i = icn_writecmd(cbuf, strlen(cbuf), 0, card); - } - break; - case ISDN_CMD_CLREAZ: - if (!(card->flags & ICN_FLAGS_RUNNING)) - return -ENODEV; - if (card->leased) - break; - if (c->arg < ICN_BCH) { - a = c->arg + 1; - if (card->ptype == ISDN_PTYPE_EURO) - sprintf(cbuf, "%02d;MSNC\n", (int) a); - else - sprintf(cbuf, "%02d;EAZC\n", (int) a); - i = icn_writecmd(cbuf, strlen(cbuf), 0, card); - } - break; - case ISDN_CMD_SETL2: - if (!(card->flags & ICN_FLAGS_RUNNING)) - return -ENODEV; - if ((c->arg & 255) < ICN_BCH) { - a = c->arg; - switch (a >> 8) { - case ISDN_PROTO_L2_X75I: - sprintf(cbuf, "%02d;BX75\n", (int) (a & 255) + 1); - break; - case ISDN_PROTO_L2_HDLC: - sprintf(cbuf, "%02d;BTRA\n", (int) (a & 255) + 1); - break; - default: - return -EINVAL; - } - i = icn_writecmd(cbuf, strlen(cbuf), 0, card); - card->l2_proto[a & 255] = (a >> 8); - } - break; - case ISDN_CMD_SETL3: - if (!(card->flags & ICN_FLAGS_RUNNING)) - return -ENODEV; - return 0; - default: - return -EINVAL; - } - return 0; -} - -/* - * Find card with given driverId - */ -static inline icn_card * -icn_findcard(int driverid) -{ - icn_card *p = cards; - - while (p) { - if (p->myid == driverid) - return p; - p = p->next; - } - return (icn_card *) 0; -} - -/* - * Wrapper functions for interface to linklevel - */ -static int -if_command(isdn_ctrl *c) -{ - icn_card *card = icn_findcard(c->driver); - - if (card) - return (icn_command(c, card)); - printk(KERN_ERR - "icn: if_command %d called with invalid driverId %d!\n", - c->command, c->driver); - return -ENODEV; -} - -static int -if_writecmd(const u_char __user *buf, int len, int id, int channel) -{ - icn_card *card = icn_findcard(id); - - if (card) { - if (!(card->flags & ICN_FLAGS_RUNNING)) - return -ENODEV; - return (icn_writecmd(buf, len, 1, card)); - } - printk(KERN_ERR - "icn: if_writecmd called with invalid driverId!\n"); - return -ENODEV; -} - -static int -if_readstatus(u_char __user *buf, int len, int id, int channel) -{ - icn_card *card = icn_findcard(id); - - if (card) { - if (!(card->flags & ICN_FLAGS_RUNNING)) - return -ENODEV; - return (icn_readstatus(buf, len, card)); - } - printk(KERN_ERR - "icn: if_readstatus called with invalid driverId!\n"); - return -ENODEV; -} - -static int -if_sendbuf(int id, int channel, int ack, struct sk_buff *skb) -{ - icn_card *card = icn_findcard(id); - - if (card) { - if (!(card->flags & ICN_FLAGS_RUNNING)) - return -ENODEV; - return (icn_sendbuf(channel, ack, skb, card)); - } - printk(KERN_ERR - "icn: if_sendbuf called with invalid driverId!\n"); - return -ENODEV; -} - -/* - * Allocate a new card-struct, initialize it - * link it into cards-list and register it at linklevel. - */ -static icn_card * -icn_initcard(int port, char *id) -{ - icn_card *card; - int i; - - if (!(card = kzalloc(sizeof(icn_card), GFP_KERNEL))) { - printk(KERN_WARNING - "icn: (%s) Could not allocate card-struct.\n", id); - return (icn_card *) 0; - } - spin_lock_init(&card->lock); - card->port = port; - card->interface.owner = THIS_MODULE; - card->interface.hl_hdrlen = 1; - card->interface.channels = ICN_BCH; - card->interface.maxbufsize = 4000; - card->interface.command = if_command; - card->interface.writebuf_skb = if_sendbuf; - card->interface.writecmd = if_writecmd; - card->interface.readstat = if_readstatus; - card->interface.features = ISDN_FEATURE_L2_X75I | - ISDN_FEATURE_L2_HDLC | - ISDN_FEATURE_L3_TRANS | - ISDN_FEATURE_P_UNKNOWN; - card->ptype = ISDN_PTYPE_UNKNOWN; - strlcpy(card->interface.id, id, sizeof(card->interface.id)); - card->msg_buf_write = card->msg_buf; - card->msg_buf_read = card->msg_buf; - card->msg_buf_end = &card->msg_buf[sizeof(card->msg_buf) - 1]; - for (i = 0; i < ICN_BCH; i++) { - card->l2_proto[i] = ISDN_PROTO_L2_X75I; - skb_queue_head_init(&card->spqueue[i]); - } - card->next = cards; - cards = card; - if (!register_isdn(&card->interface)) { - cards = cards->next; - printk(KERN_WARNING - "icn: Unable to register %s\n", id); - kfree(card); - return (icn_card *) 0; - } - card->myid = card->interface.channels; - sprintf(card->regname, "icn-isdn (%s)", card->interface.id); - return card; -} - -static int -icn_addcard(int port, char *id1, char *id2) -{ - icn_card *card; - icn_card *card2; - - if (!(card = icn_initcard(port, id1))) { - return -EIO; - } - if (!strlen(id2)) { - printk(KERN_INFO - "icn: (%s) ICN-2B, port 0x%x added\n", - card->interface.id, port); - return 0; - } - if (!(card2 = icn_initcard(port, id2))) { - printk(KERN_INFO - "icn: (%s) half ICN-4B, port 0x%x added\n", id2, port); - return 0; - } - card->doubleS0 = 1; - card->secondhalf = 0; - card->other = card2; - card2->doubleS0 = 1; - card2->secondhalf = 1; - card2->other = card; - printk(KERN_INFO - "icn: (%s and %s) ICN-4B, port 0x%x added\n", - card->interface.id, card2->interface.id, port); - return 0; -} - -#ifndef MODULE -static int __init -icn_setup(char *line) -{ - char *p, *str; - int ints[3]; - static char sid[20]; - static char sid2[20]; - - str = get_options(line, 2, ints); - if (ints[0]) - portbase = ints[1]; - if (ints[0] > 1) - membase = (unsigned long)ints[2]; - if (str && *str) { - strlcpy(sid, str, sizeof(sid)); - icn_id = sid; - if ((p = strchr(sid, ','))) { - *p++ = 0; - strcpy(sid2, p); - icn_id2 = sid2; - } - } - return (1); -} -__setup("icn=", icn_setup); -#endif /* MODULE */ - -static int __init icn_init(void) -{ - char *p; - char rev[21]; - - memset(&dev, 0, sizeof(icn_dev)); - dev.memaddr = (membase & 0x0ffc000); - dev.channel = -1; - dev.mcard = NULL; - dev.firstload = 1; - spin_lock_init(&dev.devlock); - - if ((p = strchr(revision, ':'))) { - strncpy(rev, p + 1, 20); - rev[20] = '\0'; - p = strchr(rev, '$'); - if (p) - *p = 0; - } else - strcpy(rev, " ??? "); - printk(KERN_NOTICE "ICN-ISDN-driver Rev%smem=0x%08lx\n", rev, - dev.memaddr); - return (icn_addcard(portbase, icn_id, icn_id2)); -} - -static void __exit icn_exit(void) -{ - isdn_ctrl cmd; - icn_card *card = cards; - icn_card *last, *tmpcard; - int i; - unsigned long flags; - - icn_stopallcards(); - while (card) { - cmd.command = ISDN_STAT_UNLOAD; - cmd.driver = card->myid; - card->interface.statcallb(&cmd); - spin_lock_irqsave(&card->lock, flags); - if (card->rvalid) { - OUTB_P(0, ICN_RUN); /* Reset Controller */ - OUTB_P(0, ICN_MAPRAM); /* Disable RAM */ - if (card->secondhalf || (!card->doubleS0)) { - release_region(card->port, ICN_PORTLEN); - card->rvalid = 0; - } - for (i = 0; i < ICN_BCH; i++) - icn_free_queue(card, i); - } - tmpcard = card->next; - spin_unlock_irqrestore(&card->lock, flags); - card = tmpcard; - } - card = cards; - cards = NULL; - while (card) { - last = card; - card = card->next; - kfree(last); - } - if (dev.mvalid) { - iounmap(dev.shmem); - release_mem_region(dev.memaddr, 0x4000); - } - printk(KERN_NOTICE "ICN-ISDN-driver unloaded\n"); -} - -module_init(icn_init); -module_exit(icn_exit); |