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author(no author) <(no author)@5390a7c7-147a-4af0-8ec9-7488f05a26cb>2004-10-16 15:23:58 +0000
committer(no author) <(no author)@5390a7c7-147a-4af0-8ec9-7488f05a26cb>2004-10-16 15:23:58 +0000
commitd6c61ea463c2e46cb2979f99c460f63cac358b78 (patch)
treebb6f75354f090d98a560197effdb101f8f760532
parente1237a57e94aa5fec97eff0a4bfc7419cb73cc49 (diff)
This commit was manufactured by cvs2svn to create branch 'v1-0'.
git-svn-id: http://svn.digium.com/svn/zaptel/branches/v1-0@474 5390a7c7-147a-4af0-8ec9-7488f05a26cb
-rwxr-xr-xLICENSE341
-rwxr-xr-xwcte11xp.c1569
2 files changed, 1910 insertions, 0 deletions
diff --git a/LICENSE b/LICENSE
new file mode 100755
index 0000000..a52b16e
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,341 @@
+
+ GNU GENERAL PUBLIC LICENSE
+ Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+ 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+ Preamble
+
+ The licenses for most software are designed to take away your
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+ TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
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+ NO WARRANTY
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+ END OF TERMS AND CONDITIONS
+
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
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+ To do so, attach the following notices to the program. It is safest
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+ Copyright (C) 19yy <name of author>
+
+ This program is free software; you can redistribute it and/or modify
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+ the Free Software Foundation; either version 2 of the License, or
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+ This program is distributed in the hope that it will be useful,
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+ This is free software, and you are welcome to redistribute it
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+The hypothetical commands `show w' and `show c' should show the appropriate
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+ Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+ `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+ <signature of Ty Coon>, 1 April 1989
+ Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs. If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library. If this is what you want to do, use the GNU Library General
+Public License instead of this License.
diff --git a/wcte11xp.c b/wcte11xp.c
new file mode 100755
index 0000000..4e6e616
--- /dev/null
+++ b/wcte11xp.c
@@ -0,0 +1,1569 @@
+/*
+ * Digium, Inc. Wildcard TE110P T1/PRI card Driver
+ *
+ * Written by Mark Spencer <markster@linux-support.net>
+ * Matthew Fredrickson <creslin@linux-support.net>
+ * William Meadows <wmeadows@linux-support.net>
+ *
+ * Copyright (C) 2004, Digium, Inc.
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * $Id$
+ */
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/usb.h>
+#include <linux/errno.h>
+#include <linux/pci.h>
+#include <linux/spinlock.h>
+#ifdef STANDALONE_ZAPATA
+#include "zaptel.h"
+#else
+#include <linux/zaptel.h>
+#endif
+
+#include "wct4xxp.h" /* For certain definitions */
+
+#define WC_MAX_CARDS 32
+
+/*
+#define TEST_REGS
+*/
+
+/* Define to get more attention-grabbing but slightly more I/O using
+ alarm status */
+#define FANCY_ALARM
+
+/* Define to enable the V2.1 errata register settings */
+#if 0
+#define TRUST_INFINEON_ERRATA
+#endif
+
+#define DELAY 0x0 /* 30 = 15 cycles, 10 = 8 cycles, 0 = 3 cycles */
+
+#define WC_CNTL 0x00
+#define WC_OPER 0x01
+#define WC_AUXC 0x02
+#define WC_AUXD 0x03
+#define WC_MASK0 0x04
+#define WC_MASK1 0x05
+#define WC_INTSTAT 0x06
+
+#define WC_DMAWS 0x08
+#define WC_DMAWI 0x0c
+#define WC_DMAWE 0x10
+#define WC_DMARS 0x18
+#define WC_DMARI 0x1c
+#define WC_DMARE 0x20
+#define WC_CURPOS 0x24
+
+#define WC_SERC 0x2d
+#define WC_FSCDELAY 0x2f
+
+#define WC_USERREG 0xc0
+
+#define WC_CLOCK 0x0
+#define WC_LEDTEST 0x1
+#define WC_VERSION 0x2
+
+/* Offset between transmit and receive */
+#define WC_OFFSET 4
+
+#define BIT_CS (1 << 7)
+#define BIT_ADDR (0xf << 3)
+
+#define BIT_LED1 (1 << 0)
+#define BIT_LED0 (1 << 1)
+#define BIT_TEST (1 << 2)
+
+#define FLAG_STARTED (1 << 0)
+#define FLAG_NMF (1 << 1)
+#define FLAG_SENDINGYELLOW (1 << 2)
+#define FLAG_FALC12 (1 << 3)
+
+#define TYPE_T1 1 /* is a T1 card */
+#define TYPE_E1 2 /* is an E1 card */
+
+static int chanmap_t1[] =
+{ 2,1,0,
+ 6,5,4,
+ 10,9,8,
+ 14,13,12,
+ 18,17,16,
+ 22,21,20,
+ 26,25,24,
+ 30,29,28 };
+
+static int chanmap_e1[] =
+{ 2,1,0,
+ 7,6,5,4,
+ 11,10,9,8,
+ 15,14,13,12,
+ 19,18,17,16,
+ 23,22,21,20,
+ 27,26,25,24,
+ 31,30,29,28 };
+
+#ifdef FANCY_ALARM
+static int altab[] = {
+0, 0, 0, 1, 2, 3, 4, 6, 8, 9, 11, 13, 16, 18, 20, 22, 24, 25, 27, 28, 29, 30, 31, 31, 32, 31, 31, 30, 29, 28, 27, 25, 23, 22, 20, 18, 16, 13, 11, 9, 8, 6, 4, 3, 2, 1, 0, 0,
+};
+#endif
+
+struct t1 {
+ struct pci_dev *dev;
+ spinlock_t lock;
+ int spantype;
+ int spanflags; /* Span flags */
+ unsigned char txsigs[16]; /* Copy of tx sig registers */
+ int num;
+ int alarmcount; /* How much red alarm we've seen */
+ int alarmdebounce;
+ /* Our offset for finding channel 1 */
+ int offset;
+ char *variety;
+ int intcount;
+ int usecount;
+ int clocktimeout;
+ int sync;
+ int dead;
+ int blinktimer;
+ int alarmtimer;
+ int checktiming; /* Set >0 to cause the timing source to be checked */
+ int loopupcnt;
+ int loopdowncnt;
+ int miss;
+ int misslast;
+ int *chanmap;
+#ifdef FANCY_ALARM
+ int alarmpos;
+#endif
+ unsigned char ledtestreg;
+ unsigned char outbyte;
+ unsigned long ioaddr;
+ unsigned short canary;
+ /* T1 signalling */
+ dma_addr_t readdma;
+ dma_addr_t writedma;
+ volatile unsigned char *writechunk; /* Double-word aligned write memory */
+ volatile unsigned char *readchunk; /* Double-word aligned read memory */
+ unsigned char ec_chunk1[31][ZT_CHUNKSIZE];
+ unsigned char ec_chunk2[31][ZT_CHUNKSIZE];
+ unsigned char tempo[32];
+ struct zt_span span; /* Span */
+ struct zt_chan chans[31]; /* Channels */
+};
+
+#define CANARY 0xca1e
+
+static int debug = 0; /* doesnt do anything */
+static int alarmdebounce = 0;
+static int loopback = 0;
+static int clockextra = 0;
+static int t1e1override = -1;
+
+static struct t1 *cards[WC_MAX_CARDS];
+
+static inline void start_alarm(struct t1 *wc)
+{
+#ifdef FANCY_ALARM
+ wc->alarmpos = 0;
+#endif
+ wc->blinktimer = 0;
+}
+
+static inline void stop_alarm(struct t1 *wc)
+{
+#ifdef FANCY_ALARM
+ wc->alarmpos = 0;
+#endif
+ wc->blinktimer = 0;
+}
+
+static inline void __select_framer(struct t1 *wc, int reg)
+{
+ /* Top four bits of address from AUX 6-3 */
+ wc->outbyte &= ~BIT_CS;
+ wc->outbyte &= ~BIT_ADDR;
+ wc->outbyte |= (reg & 0xf0) >> 1;
+ outb(wc->outbyte, wc->ioaddr + WC_AUXD);
+}
+
+static inline void __select_control(struct t1 *wc)
+{
+ if (!(wc->outbyte & BIT_CS)) {
+ wc->outbyte |= BIT_CS;
+ outb(wc->outbyte, wc->ioaddr + WC_AUXD);
+ }
+}
+
+static int t1xxp_open(struct zt_chan *chan)
+{
+ struct t1 *wc = chan->pvt;
+ if (wc->dead)
+ return -ENODEV;
+ wc->usecount++;
+#ifndef LINUX26
+ MOD_INC_USE_COUNT;
+#endif
+ return 0;
+}
+
+static int __control_set_reg(struct t1 *wc, int reg, unsigned char val)
+{
+ __select_control(wc);
+ outb(val, wc->ioaddr + WC_USERREG + ((reg & 0xf) << 2));
+ return 0;
+}
+
+static int control_set_reg(struct t1 *wc, int reg, unsigned char val)
+{
+ unsigned long flags;
+ int res;
+ spin_lock_irqsave(&wc->lock, flags);
+ res = __control_set_reg(wc, reg, val);
+ spin_unlock_irqrestore(&wc->lock, flags);
+ return res;
+}
+
+static int __control_get_reg(struct t1 *wc, int reg)
+{
+ unsigned char res;
+ /* The following makes UTTERLY no sense, but what was happening
+ was that reads in some cases were not actually happening
+ on the physical bus. Why, we dunno. But in debugging, we found
+ that writing before reading (in this case to an unused position)
+ seems to get rid of the problem */
+ __control_set_reg(wc,3,0x69); /* do magic here */
+ /* now get the read byte from the Xilinx part */
+ res = inb(wc->ioaddr + WC_USERREG + ((reg & 0xf) << 2));
+ return res;
+}
+
+static int control_get_reg(struct t1 *wc, int reg)
+{
+ unsigned long flags;
+ int res;
+ spin_lock_irqsave(&wc->lock, flags);
+ res = __control_get_reg(wc, reg);
+ spin_unlock_irqrestore(&wc->lock, flags);
+ return res;
+}
+
+static inline unsigned int __t1_framer_in(struct t1 *wc, const unsigned int reg)
+{
+ unsigned char res;
+ __select_framer(wc, reg);
+ /* Get value */
+ res = inb(wc->ioaddr + WC_USERREG + ((reg & 0xf) << 2));
+ return res;
+#if 0
+ unsigned int ret;
+ __t1_pci_out(wc, WC_LADDR, (unit << 8) | (addr & 0xff));
+ __t1_pci_out(wc, WC_LADDR, (unit << 8) | (addr & 0xff) | ( 1 << 10) | WC_LREAD);
+ ret = __t1_pci_in(wc, WC_LDATA);
+ __t1_pci_out(wc, WC_LADDR, 0);
+ return ret & 0xff;
+#endif
+}
+
+static inline unsigned int t1_framer_in(struct t1 *wc, const unsigned int addr)
+{
+ unsigned long flags;
+ unsigned int ret;
+ spin_lock_irqsave(&wc->lock, flags);
+ ret = __t1_framer_in(wc, addr);
+ spin_unlock_irqrestore(&wc->lock, flags);
+ return ret;
+
+}
+
+static inline void __t1_framer_out(struct t1 *wc, const unsigned int reg, const unsigned int val)
+{
+ if (debug > 1)
+ printk("Writing %02x to address %02x\n", val, reg);
+ __select_framer(wc, reg);
+ /* Send address */
+ outb(val, wc->ioaddr + WC_USERREG + ((reg & 0xf) << 2));
+#if 0
+ __t1_pci_out(wc, WC_LADDR, (unit << 8) | (addr & 0xff));
+ __t1_pci_out(wc, WC_LDATA, value);
+ __t1_pci_out(wc, WC_LADDR, (unit << 8) | (addr & 0xff) | (1 << 10));
+ __t1_pci_out(wc, WC_LADDR, (unit << 8) | (addr & 0xff) | (1 << 10) | WC_LWRITE);
+ __t1_pci_out(wc, WC_LADDR, (unit << 8) | (addr & 0xff) | (1 << 10));
+ __t1_pci_out(wc, WC_LADDR, (unit << 8) | (addr & 0xff));
+ __t1_pci_out(wc, WC_LADDR, 0);
+ if (debug) printk("Write complete\n");
+#endif
+#if 0
+ { unsigned int tmp;
+ tmp = t1_framer_in(wc, unit, addr);
+ if (tmp != value) {
+ printk("Expected %d from unit %d register %d but got %d instead\n", value, unit, addr, tmp);
+ } }
+#endif
+}
+
+static inline void t1_framer_out(struct t1 *wc, const unsigned int addr, const unsigned int value)
+{
+ unsigned long flags;
+ spin_lock_irqsave(&wc->lock, flags);
+ __t1_framer_out(wc, addr, value);
+ spin_unlock_irqrestore(&wc->lock, flags);
+}
+
+static void t1xxp_release(struct t1 *wc)
+{
+ zt_unregister(&wc->span);
+ kfree(wc);
+ printk("Freed a Wildcard\n");
+}
+
+static int t1xxp_close(struct zt_chan *chan)
+{
+ struct t1 *wc = chan->pvt;
+ wc->usecount--;
+#ifndef LINUX26
+ MOD_DEC_USE_COUNT;
+#endif
+ /* If we're dead, release us now */
+ if (!wc->usecount && wc->dead)
+ t1xxp_release(wc);
+ return 0;
+}
+
+static void t1xxp_enable_interrupts(struct t1 *wc)
+{
+ /* Clear interrupts */
+ outb(0xff, wc->ioaddr + WC_INTSTAT);
+ /* Enable interrupts (we care about all of them) */
+ outb(0x3c /* 0x3f */, wc->ioaddr + WC_MASK0);
+ /* No external interrupts */
+ outb(0x00, wc->ioaddr + WC_MASK1);
+ if (debug) printk("Enabled interrupts!\n");
+}
+
+static void t1xxp_start_dma(struct t1 *wc)
+{
+ /* Reset Master and TDM */
+ outb(DELAY | 0x0f, wc->ioaddr + WC_CNTL);
+ set_current_state(TASK_INTERRUPTIBLE);
+ schedule_timeout(1);
+ outb(DELAY | 0x01, wc->ioaddr + WC_CNTL);
+ outb(0x01, wc->ioaddr + WC_OPER);
+ if (debug) printk("Started DMA\n");
+ outb(0x03, wc->ioaddr + WC_OPER);
+ outb(0x01, wc->ioaddr + WC_OPER);
+}
+
+static void __t1xxp_stop_dma(struct t1 *wc)
+{
+ outb(0x00, wc->ioaddr + WC_OPER);
+}
+
+static void __t1xxp_disable_interrupts(struct t1 *wc)
+{
+ outb(0x00, wc->ioaddr + WC_MASK0);
+ outb(0x00, wc->ioaddr + WC_MASK1);
+}
+
+static void __t1xxp_set_clear(struct t1 *wc)
+{
+ int i,j;
+ unsigned short val=0;
+ for (i=0;i<24;i++) {
+ j = (i/8);
+ if (wc->span.chans[i].flags & ZT_FLAG_CLEAR)
+ val |= 1 << (7 - (i % 8));
+ if ((i % 8)==7) {
+ if (debug > 1)
+ printk("Putting %d in register %02x\n",
+ val, 0x2f + j);
+ __t1_framer_out(wc, 0x2f + j, val);
+ val = 0;
+ }
+ }
+}
+
+static int t1xxp_ioctl(struct zt_chan *chan, unsigned int cmd, unsigned long data)
+{
+ struct t4_regs regs;
+ int x;
+ struct t1 *wc;
+ switch(cmd) {
+ case WCT4_GET_REGS:
+ wc = chan->pvt;
+ for (x=0;x<NUM_PCI;x++)
+#if 1
+ regs.pci[x] = (inb(wc->ioaddr + (x << 2))) |
+ (inb(wc->ioaddr + (x << 2) + 1) << 8) |
+ (inb(wc->ioaddr + (x << 2) + 2) << 16) |
+ (inb(wc->ioaddr + (x << 2) + 3) << 24);
+#else
+ regs.pci[x] = (inb(wc->ioaddr + x));
+#endif
+
+ for (x=0;x<NUM_REGS;x++)
+ regs.regs[x] = t1_framer_in(wc, x);
+ if (copy_to_user((struct t4_regs *)data, &regs, sizeof(regs)))
+ return -EFAULT;
+ break;
+ default:
+ return -ENOTTY;
+ }
+ return 0;
+}
+
+static int t1xxp_maint(struct zt_span *span, int cmd)
+{
+ struct t1 *wc = span->pvt;
+
+ if (wc->spantype == TYPE_E1) {
+ switch(cmd) {
+ case ZT_MAINT_NONE:
+ printk("XXX Turn off local and remote loops E1 XXX\n");
+ break;
+ case ZT_MAINT_LOCALLOOP:
+ printk("XXX Turn on local loopback E1 XXX\n");
+ break;
+ case ZT_MAINT_REMOTELOOP:
+ printk("XXX Turn on remote loopback E1 XXX\n");
+ break;
+ case ZT_MAINT_LOOPUP:
+ printk("XXX Send loopup code E1 XXX\n");
+ break;
+ case ZT_MAINT_LOOPDOWN:
+ printk("XXX Send loopdown code E1 XXX\n");
+ break;
+ case ZT_MAINT_LOOPSTOP:
+ printk("XXX Stop sending loop codes E1 XXX\n");
+ break;
+ default:
+ printk("TE110P: Unknown E1 maint command: %d\n", cmd);
+ break;
+ }
+ } else {
+ switch(cmd) {
+ case ZT_MAINT_NONE:
+ printk("XXX Turn off local and remote loops T1 XXX\n");
+ break;
+ case ZT_MAINT_LOCALLOOP:
+ printk("XXX Turn on local loop and no remote loop XXX\n");
+ break;
+ case ZT_MAINT_REMOTELOOP:
+ printk("XXX Turn on remote loopup XXX\n");
+ break;
+ case ZT_MAINT_LOOPUP:
+ t1_framer_out(wc, 0x21, 0x50); /* FMR5: Nothing but RBS mode */
+ break;
+ case ZT_MAINT_LOOPDOWN:
+ t1_framer_out(wc, 0x21, 0x60); /* FMR5: Nothing but RBS mode */
+ break;
+ case ZT_MAINT_LOOPSTOP:
+ t1_framer_out(wc, 0x21, 0x40); /* FMR5: Nothing but RBS mode */
+ break;
+ default:
+ printk("TE110P: Unknown T1 maint command: %d\n", cmd);
+ break;
+ }
+ }
+ return 0;
+}
+
+static int t1xxp_rbsbits(struct zt_chan *chan, int bits)
+{
+ u_char m,c;
+ int n,b;
+ struct t1 *wc = chan->pvt;
+ unsigned long flags;
+
+ if(debug > 1) printk("Setting bits to %d on channel %s\n", bits, chan->name);
+ spin_lock_irqsave(&wc->lock, flags);
+ if (wc->spantype == TYPE_E1) { /* do it E1 way */
+ if (chan->chanpos == 16) {
+ spin_unlock_irqrestore(&wc->lock, flags);
+ return 0;
+ }
+ n = chan->chanpos - 1;
+ if (chan->chanpos > 15) n--;
+ b = (n % 15);
+ c = wc->txsigs[b];
+ m = (n / 15) << 2; /* nibble selector */
+ c &= (0xf << m); /* keep the other nibble */
+ c |= (bits & 0xf) << (4 - m); /* put our new nibble here */
+ wc->txsigs[b] = c;
+ /* output them to the chip */
+ __t1_framer_out(wc,0x71 + b,c);
+ } else if (wc->span.lineconfig & ZT_CONFIG_D4) {
+ n = chan->chanpos - 1;
+ b = (n/4);
+ c = wc->txsigs[b];
+ m = ((3 - (n % 4)) << 1); /* nibble selector */
+ c &= ~(0x3 << m); /* keep the other nibble */
+ c |= ((bits >> 2) & 0x3) << m; /* put our new nibble here */
+ wc->txsigs[b] = c;
+ /* output them to the chip */
+ __t1_framer_out(wc,0x70 + b,c);
+ __t1_framer_out(wc,0x70 + b + 6,c);
+ } else if (wc->span.lineconfig & ZT_CONFIG_ESF) {
+ n = chan->chanpos - 1;
+ b = (n/2);
+ c = wc->txsigs[b];
+ m = ((n % 2) << 2); /* nibble selector */
+ c &= (0xf << m); /* keep the other nibble */
+ c |= (bits & 0xf) << (4 - m); /* put our new nibble here */
+ wc->txsigs[b] = c;
+ /* output them to the chip */
+ __t1_framer_out(wc,0x70 + b,c);
+ }
+ spin_unlock_irqrestore(&wc->lock, flags);
+ if (debug > 1)
+ printk("Finished setting RBS bits\n");
+ return 0;
+}
+
+static void __t1_check_sigbits(struct t1 *wc)
+{
+ int a,i,rxs;
+ if (!(wc->span.flags & ZT_FLAG_RUNNING))
+ return;
+ if (wc->spantype == TYPE_E1) {
+ for (i = 0; i < 15; i++) {
+ a = __t1_framer_in(wc, 0x71 + i);
+ /* Get high channel in low bits */
+ rxs = (a & 0xf);
+ if (!(wc->span.chans[i+16].sig & ZT_SIG_CLEAR)) {
+ if (wc->span.chans[i+16].rxsig != rxs)
+ zt_rbsbits(&wc->span.chans[i+16], rxs);
+ }
+ rxs = (a >> 4) & 0xf;
+ if (!(wc->span.chans[i].sig & ZT_SIG_CLEAR)) {
+ if (wc->span.chans[i].rxsig != rxs)
+ zt_rbsbits(&wc->span.chans[i], rxs);
+ }
+ }
+ } else if (wc->span.lineconfig & ZT_CONFIG_D4) {
+ for (i = 0; i < 24; i+=4) {
+ a = __t1_framer_in(wc, 0x70 + (i>>2));
+ /* Get high channel in low bits */
+ rxs = (a & 0x3) << 2;
+ if (!(wc->span.chans[i+3].sig & ZT_SIG_CLEAR)) {
+ if (wc->span.chans[i+3].rxsig != rxs)
+ zt_rbsbits(&wc->span.chans[i+3], rxs);
+ }
+ rxs = (a & 0xc);
+ if (!(wc->span.chans[i+2].sig & ZT_SIG_CLEAR)) {
+ if (wc->span.chans[i+2].rxsig != rxs)
+ zt_rbsbits(&wc->span.chans[i+2], rxs);
+ }
+ rxs = (a >> 2) & 0xc;
+ if (!(wc->span.chans[i+1].sig & ZT_SIG_CLEAR)) {
+ if (wc->span.chans[i+1].rxsig != rxs)
+ zt_rbsbits(&wc->span.chans[i+1], rxs);
+ }
+ rxs = (a >> 4) & 0xc;
+ if (!(wc->span.chans[i].sig & ZT_SIG_CLEAR)) {
+ if (wc->span.chans[i].rxsig != rxs)
+ zt_rbsbits(&wc->span.chans[i], rxs);
+ }
+ }
+ } else {
+ for (i = 0; i < 24; i+=2) {
+ a = __t1_framer_in(wc, 0x70 + (i>>1));
+ /* Get high channel in low bits */
+ rxs = (a & 0xf);
+ if (!(wc->span.chans[i+1].sig & ZT_SIG_CLEAR)) {
+ if (wc->span.chans[i+1].rxsig != rxs)
+ zt_rbsbits(&wc->span.chans[i+1], rxs);
+ }
+ rxs = (a >> 4) & 0xf;
+ if (!(wc->span.chans[i].sig & ZT_SIG_CLEAR)) {
+ if (wc->span.chans[i].rxsig != rxs)
+ zt_rbsbits(&wc->span.chans[i], rxs);
+ }
+ }
+ }
+}
+
+static void t4_serial_setup(struct t1 *wc)
+{
+ printk("TE110P: Setting up global serial parameters for %s %s\n",
+ wc->spantype == TYPE_E1 ? "E1" : "T1",
+ wc->spanflags & FLAG_FALC12 ? "FALC V1.2" : "FALC V2.1");
+ t1_framer_out(wc, 0x85, 0xe0); /* GPC1: Multiplex mode enabled, FSC is output, active low, RCLK from channel 0 */
+ t1_framer_out(wc, 0x08, 0x05); /* IPC: Interrupt push/pull active low */
+ if (wc->spanflags & FLAG_FALC12) {
+ t1_framer_out(wc, 0x92, 0x00);
+ t1_framer_out(wc, 0x93, 0x58);
+ t1_framer_out(wc, 0x94, 0xd2);
+ t1_framer_out(wc, 0x95, 0xc2);
+ t1_framer_out(wc, 0x96, 0x03);
+ t1_framer_out(wc, 0x97, 0x10);
+ } else {
+#ifdef TRUST_INFINEON_ERRATA
+ if (wc->spantype == TYPE_E1) {
+ /* Global clocks (8.192 Mhz CLK) */
+ t1_framer_out(wc, 0x92, 0x00);
+ t1_framer_out(wc, 0x93, 0x00);
+ t1_framer_out(wc, 0x94, 0x00);
+ t1_framer_out(wc, 0x95, 0x00);
+ t1_framer_out(wc, 0x96, 0x00);
+ t1_framer_out(wc, 0x97, 0x0F);
+ t1_framer_out(wc, 0x98, 0x80);
+ t1_framer_out(wc, 0x99, 0x00);
+ } else {
+ /* Global clocks (8.192 Mhz CLK) */
+ t1_framer_out(wc, 0x92, 0x00);
+ t1_framer_out(wc, 0x93, 0x10);
+ t1_framer_out(wc, 0x94, 0xfb);
+ t1_framer_out(wc, 0x95, 0x03);
+ t1_framer_out(wc, 0x96, 0x00);
+ t1_framer_out(wc, 0x97, 0x0b);
+ t1_framer_out(wc, 0x98, 0x8c);
+ t1_framer_out(wc, 0x99, 0x80);
+ }
+#else
+ t1_framer_out(wc, 0x92, 0x66);
+ t1_framer_out(wc, 0x93, 0x0e);
+ t1_framer_out(wc, 0x94, 0x3f);
+ t1_framer_out(wc, 0x95, 0x0f);
+ t1_framer_out(wc, 0x96, 0x04);
+ t1_framer_out(wc, 0x97, 0x3c);
+ t1_framer_out(wc, 0x98, 0x9c);
+ t1_framer_out(wc, 0x99, 0x90);
+#endif
+ }
+ /* Configure interrupts */
+ t1_framer_out(wc, 0x46, 0x40); /* GCR: Interrupt on Activation/Deactivation of AIX, LOS */
+
+ /* Configure system interface */
+ t1_framer_out(wc, 0x3e, 0x02); /* SIC1: 4.096 Mhz clock/bus, double buffer receive / transmit, byte interleaved */
+ t1_framer_out(wc, 0x3f, 0x00); /* SIC2: No FFS, no center receive eliastic buffer, phase 0 */
+ t1_framer_out(wc, 0x40, 0x04); /* SIC3: Edges for capture */
+ t1_framer_out(wc, 0x44, 0x30); /* CMR1: RCLK is at 8.192 Mhz dejittered */
+ t1_framer_out(wc, 0x45, 0x00); /* CMR2: We provide sync and clock for tx and rx. */
+ t1_framer_out(wc, 0x22, 0x00); /* XC0: Normal operation of Sa-bits */
+ t1_framer_out(wc, 0x23, 0x04); /* XC1: 0 offset */
+ t1_framer_out(wc, 0x24, 0x07); /* RC0: Just shy of 255 */
+ if (wc->spanflags & FLAG_FALC12)
+ t1_framer_out(wc, 0x25, 0x04); /* RC1: The rest of RC0 */
+ else
+ t1_framer_out(wc, 0x25, 0x06); /* RC1: The rest of RC0 */
+
+ /* Configure ports */
+ t1_framer_out(wc, 0x80, 0x00); /* PC1: SPYR/SPYX input on RPA/XPA */
+ t1_framer_out(wc, 0x81, 0x22); /* PC2: RMFB/XSIG output/input on RPB/XPB */
+ t1_framer_out(wc, 0x82, 0x65); /* PC3: Some unused stuff */
+ t1_framer_out(wc, 0x83, 0x35); /* PC4: Some more unused stuff */
+ t1_framer_out(wc, 0x84, 0x31); /* PC5: XMFS active low, SCLKR is input, RCLK is output */
+ t1_framer_out(wc, 0x86, 0x03); /* PC6: CLK1 is Tx Clock output, CLK2 is 8.192 Mhz from DCO-R */
+ t1_framer_out(wc, 0x3b, 0x00); /* Clear LCR1 */
+ printk("TE110P: Successfully initialized serial bus for card\n");
+}
+
+static void __t1_configure_t1(struct t1 *wc, int lineconfig, int txlevel)
+{
+ unsigned int fmr4, fmr2, fmr1, fmr0, lim2;
+ char *framing, *line;
+ int mytxlevel;
+ if ((txlevel > 7) || (txlevel < 4))
+ mytxlevel = 0;
+ else
+ mytxlevel = txlevel - 4;
+ fmr1 = 0x1c; /* FMR1: Mode 0, T1 mode, CRC on for ESF, 2.048 Mhz system data rate, no XAIS */
+ fmr2 = 0x22; /* FMR2: no payload loopback, auto send yellow alarm */
+ if (loopback)
+ fmr2 |= 0x4;
+ fmr4 = 0x0c; /* FMR4: Lose sync on 2 out of 5 framing bits, auto resync */
+ lim2 = 0x21; /* LIM2: 50% peak is a "1", Advanced Loss recovery */
+ lim2 |= (mytxlevel << 6); /* LIM2: Add line buildout */
+ __t1_framer_out(wc, 0x1d, fmr1);
+ __t1_framer_out(wc, 0x1e, fmr2);
+
+ /* Configure line interface */
+ if (lineconfig & ZT_CONFIG_AMI) {
+ line = "AMI";
+ fmr0 = 0xa0;
+ } else {
+ line = "B8ZS";
+ fmr0 = 0xf0;
+ }
+ if (lineconfig & ZT_CONFIG_D4) {
+ framing = "D4";
+ } else {
+ framing = "ESF";
+ fmr4 |= 0x2;
+ fmr2 |= 0xc0;
+ }
+ __t1_framer_out(wc, 0x1c, fmr0);
+ __t1_framer_out(wc, 0x20, fmr4);
+ __t1_framer_out(wc, 0x21, 0x40); /* FMR5: Enable RBS mode */
+
+ __t1_framer_out(wc, 0x37, 0xf8); /* LIM1: Clear data in case of LOS, Set receiver threshold (0.5V), No remote loop, no DRS */
+ __t1_framer_out(wc, 0x36, 0x08); /* LIM0: Enable auto long haul mode, no local loop (must be after LIM1) */
+
+ __t1_framer_out(wc, 0x02, 0x50); /* CMDR: Reset the receiver and transmitter line interface */
+ __t1_framer_out(wc, 0x02, 0x00); /* CMDR: Reset the receiver and transmitter line interface */
+
+ __t1_framer_out(wc, 0x3a, lim2); /* LIM2: 50% peak amplitude is a "1" */
+ __t1_framer_out(wc, 0x38, 0x0a); /* PCD: LOS after 176 consecutive "zeros" */
+ __t1_framer_out(wc, 0x39, 0x15); /* PCR: 22 "ones" clear LOS */
+
+ /* Generate pulse mask for T1 */
+ switch(mytxlevel) {
+ case 3:
+ __t1_framer_out(wc, 0x26, 0x07); /* XPM0 */
+ __t1_framer_out(wc, 0x27, 0x01); /* XPM1 */
+ __t1_framer_out(wc, 0x28, 0x00); /* XPM2 */
+ break;
+ case 2:
+ __t1_framer_out(wc, 0x26, 0x8c); /* XPM0 */
+ __t1_framer_out(wc, 0x27, 0x11); /* XPM1 */
+ __t1_framer_out(wc, 0x28, 0x01); /* XPM2 */
+ break;
+ case 1:
+ __t1_framer_out(wc, 0x26, 0x8c); /* XPM0 */
+ __t1_framer_out(wc, 0x27, 0x01); /* XPM1 */
+ __t1_framer_out(wc, 0x28, 0x00); /* XPM2 */
+ break;
+ case 0:
+ default:
+ __t1_framer_out(wc, 0x26, 0xd7); /* XPM0 */
+ __t1_framer_out(wc, 0x27, 0x22); /* XPM1 */
+ __t1_framer_out(wc, 0x28, 0x01); /* XPM2 */
+ break;
+ }
+ printk("TE110P: Span configured for %s/%s\n", framing, line);
+}
+
+static void __t1_configure_e1(struct t1 *wc, int lineconfig)
+{
+ unsigned int fmr2, fmr1, fmr0;
+ unsigned int cas = 0;
+ char *crc4 = "";
+ char *framing, *line;
+ fmr1 = 0x44; /* FMR1: E1 mode, Automatic force resync, PCM30 mode, 8.192 Mhz backplane, no XAIS */
+ fmr2 = 0x03; /* FMR2: Auto transmit remote alarm, auto loss of multiframe recovery, no payload loopback */
+ if (loopback)
+ fmr2 |= 0x4;
+ if (lineconfig & ZT_CONFIG_CRC4) {
+ fmr1 |= 0x08; /* CRC4 transmit */
+ fmr2 |= 0xc0; /* CRC4 receive */
+ crc4 = "/CRC4";
+ }
+ __t1_framer_out(wc, 0x1d, fmr1);
+ __t1_framer_out(wc, 0x1e, fmr2);
+
+ /* Configure line interface */
+ if (lineconfig & ZT_CONFIG_AMI) {
+ line = "AMI";
+ fmr0 = 0xa0;
+ } else {
+ line = "HDB3";
+ fmr0 = 0xf0;
+ }
+ if (lineconfig & ZT_CONFIG_CCS) {
+ framing = "CCS";
+ } else {
+ framing = "CAS";
+ cas = 0x40;
+ }
+ __t1_framer_out(wc, 0x1c, fmr0);
+
+ __t1_framer_out(wc, 0x37, 0xf0 /*| 0x6 */ ); /* LIM1: Clear data in case of LOS, Set receiver threshold (0.5V), No remote loop, no DRS */
+ __t1_framer_out(wc, 0x36, 0x08); /* LIM0: Enable auto long haul mode, no local loop (must be after LIM1) */
+
+ __t1_framer_out(wc, 0x02, 0x50); /* CMDR: Reset the receiver and transmitter line interface */
+ __t1_framer_out(wc, 0x02, 0x00); /* CMDR: Reset the receiver and transmitter line interface */
+
+ /* Condition receive line interface for E1 after reset */
+ __t1_framer_out(wc, 0xbb, 0x17);
+ __t1_framer_out(wc, 0xbc, 0x55);
+ __t1_framer_out(wc, 0xbb, 0x97);
+ __t1_framer_out(wc, 0xbb, 0x11);
+ __t1_framer_out(wc, 0xbc, 0xaa);
+ __t1_framer_out(wc, 0xbb, 0x91);
+ __t1_framer_out(wc, 0xbb, 0x12);
+ __t1_framer_out(wc, 0xbc, 0x55);
+ __t1_framer_out(wc, 0xbb, 0x92);
+ __t1_framer_out(wc, 0xbb, 0x0c);
+ __t1_framer_out(wc, 0xbb, 0x00);
+ __t1_framer_out(wc, 0xbb, 0x8c);
+
+ __t1_framer_out(wc, 0x3a, 0x20); /* LIM2: 50% peak amplitude is a "1" */
+ __t1_framer_out(wc, 0x38, 0x0a); /* PCD: LOS after 176 consecutive "zeros" */
+ __t1_framer_out(wc, 0x39, 0x15); /* PCR: 22 "ones" clear LOS */
+
+ __t1_framer_out(wc, 0x20, 0x9f); /* XSW: Spare bits all to 1 */
+ __t1_framer_out(wc, 0x21, 0x1c|cas); /* XSP: E-bit set when async. AXS auto, XSIF to 1 */
+
+
+ /* Generate pulse mask for E1 */
+ __t1_framer_out(wc, 0x26, 0x54); /* XPM0 */
+ __t1_framer_out(wc, 0x27, 0x02); /* XPM1 */
+ __t1_framer_out(wc, 0x28, 0x00); /* XPM2 */
+ printk("TE110P: Span configured for %s/%s%s\n", framing, line, crc4);
+}
+
+static void t1xxp_framer_start(struct t1 *wc, struct zt_span *span)
+{
+ int alreadyrunning = wc->span.flags & ZT_FLAG_RUNNING;
+ unsigned long flags;
+
+ spin_lock_irqsave(&wc->lock, flags);
+
+ if (wc->spantype == TYPE_E1) { /* if this is an E1 card */
+ __t1_configure_e1(wc, span->lineconfig);
+ } else { /* is a T1 card */
+ __t1_configure_t1(wc, span->lineconfig, span->txlevel);
+ __t1xxp_set_clear(wc);
+ }
+
+ if (!alreadyrunning)
+ wc->span.flags |= ZT_FLAG_RUNNING;
+
+ spin_unlock_irqrestore(&wc->lock, flags);
+}
+
+
+static int t1xxp_startup(struct zt_span *span)
+{
+ struct t1 *wc = span->pvt;
+
+ int i,alreadyrunning = span->flags & ZT_FLAG_RUNNING;
+
+ /* initialize the start value for the entire chunk of last ec buffer */
+ for(i = 0; i < span->channels; i++)
+ {
+ memset(wc->ec_chunk1[i],
+ ZT_LIN2X(0,&span->chans[i]),ZT_CHUNKSIZE);
+ memset(wc->ec_chunk2[i],
+ ZT_LIN2X(0,&span->chans[i]),ZT_CHUNKSIZE);
+ }
+
+ /* Reset framer with proper parameters and start */
+ t1xxp_framer_start(wc, span);
+ printk("Calling startup (flags is %d)\n", span->flags);
+
+ if (!alreadyrunning) {
+ /* Only if we're not already going */
+ t1xxp_enable_interrupts(wc);
+ t1xxp_start_dma(wc);
+ span->flags |= ZT_FLAG_RUNNING;
+ }
+ return 0;
+}
+
+static int t1xxp_shutdown(struct zt_span *span)
+{
+ struct t1 *wc = span->pvt;
+ unsigned long flags;
+
+ spin_lock_irqsave(&wc->lock, flags);
+ t1_framer_out(wc, 0x46, 0x41); /* GCR: Interrupt on Activation/Deactivation of AIX, LOS */
+ __t1xxp_stop_dma(wc);
+ __t1xxp_disable_interrupts(wc);
+ span->flags &= ~ZT_FLAG_RUNNING;
+ spin_unlock_irqrestore(&wc->lock, flags);
+ return 0;
+}
+
+
+static int t1xxp_chanconfig(struct zt_chan *chan, int sigtype)
+{
+ struct t1 *wc = chan->pvt;
+ unsigned long flags;
+ int alreadyrunning = chan->span->flags & ZT_FLAG_RUNNING;
+
+ spin_lock_irqsave(&wc->lock, flags);
+
+ if (alreadyrunning && (wc->spantype != TYPE_E1))
+ __t1xxp_set_clear(wc);
+
+ spin_unlock_irqrestore(&wc->lock, flags);
+ return 0;
+}
+
+static int t1xxp_spanconfig(struct zt_span *span, struct zt_lineconfig *lc)
+{
+ struct t1 *wc = span->pvt;
+ span->lineconfig = lc->lineconfig;
+ span->txlevel = lc->lbo;
+ span->rxlevel = 0;
+ /* Do we want to SYNC on receive or not */
+ wc->sync = lc->sync;
+ /* If already running, apply changes immediately */
+ if (span->flags & ZT_FLAG_RUNNING)
+ return t1xxp_startup(span);
+ return 0;
+}
+
+static int t1xxp_software_init(struct t1 *wc)
+{
+ int x;
+ /* Find position */
+ for (x=0;x<WC_MAX_CARDS;x++) {
+ if (!cards[x]) {
+ cards[x] = wc;
+ break;
+ }
+ }
+ if (x >= WC_MAX_CARDS)
+ return -1;
+ t4_serial_setup(wc);
+ wc->num = x;
+ sprintf(wc->span.name, "WCT1/%d", wc->num);
+ sprintf(wc->span.desc, "%s Card %d", wc->variety, wc->num);
+ wc->span.spanconfig = t1xxp_spanconfig;
+ wc->span.chanconfig = t1xxp_chanconfig;
+ wc->span.startup = t1xxp_startup;
+ wc->span.shutdown = t1xxp_shutdown;
+ wc->span.rbsbits = t1xxp_rbsbits;
+ wc->span.maint = t1xxp_maint;
+ wc->span.open = t1xxp_open;
+ wc->span.close = t1xxp_close;
+ if (wc->spantype == TYPE_E1)
+ wc->span.channels = 31;
+ else
+ wc->span.channels = 24;
+ wc->span.chans = wc->chans;
+ wc->span.flags = ZT_FLAG_RBS;
+ wc->span.linecompat = ZT_CONFIG_AMI | ZT_CONFIG_B8ZS | ZT_CONFIG_D4 | ZT_CONFIG_ESF;
+ wc->span.ioctl = t1xxp_ioctl;
+ wc->span.pvt = wc;
+ if (wc->spantype == TYPE_E1)
+ wc->span.deflaw = ZT_LAW_ALAW;
+ else
+ wc->span.deflaw = ZT_LAW_MULAW;
+ init_waitqueue_head(&wc->span.maintq);
+ for (x=0;x<wc->span.channels;x++) {
+ sprintf(wc->chans[x].name, "WCT1/%d/%d", wc->num, x + 1);
+ wc->chans[x].sigcap = ZT_SIG_EM | ZT_SIG_CLEAR | ZT_SIG_EM_E1 |
+ ZT_SIG_FXSLS | ZT_SIG_FXSGS |
+ ZT_SIG_FXSKS | ZT_SIG_FXOLS |
+ ZT_SIG_FXOGS | ZT_SIG_FXOKS | ZT_SIG_CAS | ZT_SIG_SF;
+ wc->chans[x].pvt = wc;
+ wc->chans[x].chanpos = x + 1;
+ }
+ if (zt_register(&wc->span, 0)) {
+ printk("Unable to register span with zaptel\n");
+ return -1;
+ }
+ return 0;
+}
+
+static inline void __handle_leds(struct t1 *wc)
+{
+ int oldreg;
+
+ if (wc->span.alarms & (ZT_ALARM_RED | ZT_ALARM_BLUE)) {
+ /* Red/Blue alarm */
+ wc->blinktimer++;
+#ifdef FANCY_ALARM
+ if (wc->blinktimer == (altab[wc->alarmpos] >> 1)) {
+ wc->ledtestreg = (wc->ledtestreg | BIT_LED1) & ~BIT_LED0;
+ __control_set_reg(wc, WC_LEDTEST, wc->ledtestreg);
+ }
+ if (wc->blinktimer >= 0xf) {
+ wc->ledtestreg = wc->ledtestreg & ~(BIT_LED0 | BIT_LED1);
+ __control_set_reg(wc, WC_LEDTEST, wc->ledtestreg);
+ wc->blinktimer = -1;
+ wc->alarmpos++;
+ if (wc->alarmpos >= (sizeof(altab) / sizeof(altab[0])))
+ wc->alarmpos = 0;
+ }
+#else
+ if (wc->blinktimer == 160) {
+ wc->ledtestreg = (wc->ledtestreg | BIT_LED1) & ~BIT_LED0;
+ __control_set_reg(wc, WC_LEDTEST, wc->ledtestreg);
+ } else if (wc->blinktimer == 480) {
+ wc->ledtestreg = wc->ledtestreg & ~(BIT_LED0 | BIT_LED1);
+ __control_set_reg(wc, WC_LEDTEST, wc->ledtestreg);
+ wc->blinktimer = 0;
+ }
+#endif
+ } else if (wc->span.alarms & ZT_ALARM_YELLOW) {
+ /* Yellow Alarm */
+ if (!(wc->blinktimer % 2))
+ wc->ledtestreg = (wc->ledtestreg | BIT_LED1) & ~BIT_LED0;
+ else
+ wc->ledtestreg = (wc->ledtestreg | BIT_LED0) & ~BIT_LED1;
+ __control_set_reg(wc, WC_LEDTEST, wc->ledtestreg);
+ } else {
+ /* No Alarm */
+ oldreg = wc->ledtestreg;
+ if (wc->span.maintstat != ZT_MAINT_NONE)
+ wc->ledtestreg |= BIT_TEST;
+ else
+ wc->ledtestreg &= ~BIT_TEST;
+ if (wc->span.flags & ZT_FLAG_RUNNING)
+ wc->ledtestreg = (wc->ledtestreg | BIT_LED0) & ~BIT_LED1;
+ else
+ wc->ledtestreg = wc->ledtestreg & ~(BIT_LED0 | BIT_LED1);
+ if (oldreg != wc->ledtestreg)
+ __control_set_reg(wc, WC_LEDTEST, wc->ledtestreg);
+ }
+}
+
+static void t1xxp_transmitprep(struct t1 *wc, int ints)
+{
+ volatile unsigned char *txbuf;
+ int x,y;
+ int pos;
+ if (ints & 0x04 /* 0x01 */) {
+ /* We just finished sending the first buffer, start filling it
+ now */
+ txbuf = wc->writechunk;
+ } else {
+ /* Just finished sending second buffer, fill it now */
+ txbuf = wc->writechunk + 32 * ZT_CHUNKSIZE;
+ }
+ zt_transmit(&wc->span);
+ for (x=0;x<wc->offset;x++)
+ txbuf[x] = wc->tempo[x];
+ for (y=0;y<ZT_CHUNKSIZE;y++) {
+ for (x=0;x<wc->span.channels;x++) {
+ pos = y * 32 + wc->chanmap[x] + wc->offset;
+ /* Put channel number as outgoing data */
+ if (pos < 32 * ZT_CHUNKSIZE)
+ txbuf[pos] = wc->chans[x].writechunk[y];
+ else
+ wc->tempo[pos - 32 * ZT_CHUNKSIZE] = wc->chans[x].writechunk[y];
+ }
+ }
+}
+
+static void t1xxp_receiveprep(struct t1 *wc, int ints)
+{
+ volatile unsigned char *rxbuf;
+ volatile unsigned int *canary;
+ int x;
+ int y;
+ unsigned int oldcan;
+ if (ints & 0x04) {
+ /* Just received first buffer */
+ rxbuf = wc->readchunk;
+ canary = (unsigned int *)(wc->readchunk + ZT_CHUNKSIZE * 64 - 4);
+ } else {
+ rxbuf = wc->readchunk + ZT_CHUNKSIZE * 32;
+ canary = (unsigned int *)(wc->readchunk + ZT_CHUNKSIZE * 32 - 4);
+ }
+ oldcan = *canary;
+ if (((oldcan & 0xffff0000) >> 16) != CANARY) {
+ /* Check top part */
+ if (debug) printk("Expecting top %04x, got %04x\n", CANARY, (oldcan & 0xffff0000) >> 16);
+ wc->span.irqmisses++;
+ } else if ((oldcan & 0xffff) != ((wc->canary - 1) & 0xffff)) {
+ if (debug) printk("Expecting bottom %d, got %d\n", wc->canary - 1, oldcan & 0xffff);
+ wc->span.irqmisses++;
+ }
+ for (y=0;y<ZT_CHUNKSIZE;y++) {
+ for (x=0;x<wc->span.channels;x++) {
+ /* XXX Optimize, remove * and + XXX */
+ /* Must map received channels into appropriate data */
+ wc->chans[x].readchunk[y] =
+ rxbuf[32 * y + ((wc->chanmap[x] + WC_OFFSET + wc->offset) & 0x1f)];
+ }
+ if (wc->spantype != TYPE_E1) {
+ for (x=3;x<32;x+=4) {
+ if (rxbuf[32 * y + ((x + WC_OFFSET) & 0x1f)] == 0x7f) {
+ if (wc->offset != (x-3)) {
+ /* Resync */
+ control_set_reg(wc, WC_CLOCK, 0x06 | wc->sync | clockextra);
+ wc->clocktimeout = 100;
+#if 1
+ if (debug) printk("T1: Lost our place, resyncing\n");
+#endif
+ }
+ }
+ }
+ } else {
+ if (!wc->clocktimeout && !wc->span.alarms) {
+ if ((rxbuf[32 * y + ((3 + WC_OFFSET + wc->offset) & 0x1f)] & 0x7f) != 0x1b) {
+ if (wc->miss) {
+ if (debug) printk("Double miss (%d, %d)...\n", wc->misslast, rxbuf[32 * y + ((3 + WC_OFFSET + wc->offset) & 0x1f)]);
+ control_set_reg(wc, WC_CLOCK, 0x06 | wc->sync | clockextra);
+ wc->clocktimeout = 100;
+ } else {
+ wc->miss = 1;
+ wc->misslast = rxbuf[32 * y + ((3 + WC_OFFSET + wc->offset) & 0x1f)];
+ }
+ } else {
+ wc->miss = 0;
+ }
+ } else {
+ wc->miss = 0;
+ }
+ }
+ }
+ /* Store the next canary */
+ canary = (unsigned int *)(rxbuf + ZT_CHUNKSIZE * 32 - 4);
+ *canary = (wc->canary++) | (CANARY << 16);
+ for (x=0;x<wc->span.channels;x++) {
+ zt_ec_chunk(&wc->chans[x], wc->chans[x].readchunk,
+ wc->ec_chunk2[x]);
+ memcpy(wc->ec_chunk2[x],wc->ec_chunk1[x],ZT_CHUNKSIZE);
+ memcpy(wc->ec_chunk1[x],wc->chans[x].writechunk,ZT_CHUNKSIZE);
+ }
+ zt_receive(&wc->span);
+}
+
+static void __t1_check_alarms(struct t1 *wc)
+{
+ unsigned char c,d;
+ int alarms;
+ int x,j;
+
+ if (!(wc->span.flags & ZT_FLAG_RUNNING))
+ return;
+
+ c = __t1_framer_in(wc, 0x4c);
+ if (wc->spanflags & FLAG_FALC12)
+ d = __t1_framer_in(wc, 0x4f);
+ else
+ d = __t1_framer_in(wc, 0x4d);
+
+ /* Assume no alarms */
+ alarms = 0;
+
+ /* And consider only carrier alarms */
+ wc->span.alarms &= (ZT_ALARM_RED | ZT_ALARM_BLUE | ZT_ALARM_NOTOPEN);
+
+ if (wc->spantype == TYPE_E1) {
+ if (c & 0x04) {
+ /* No multiframe found, force RAI high after 400ms only if
+ we haven't found a multiframe since last loss
+ of frame */
+ if (!(wc->spanflags & FLAG_NMF)) {
+ __t1_framer_out(wc, 0x20, 0x9f | 0x20); /* LIM0: Force RAI High */
+ wc->spanflags |= FLAG_NMF;
+ printk("NMF workaround on!\n");
+ }
+ __t1_framer_out(wc, 0x1e, 0xc3); /* Reset to CRC4 mode */
+ __t1_framer_out(wc, 0x1c, 0xf2); /* Force Resync */
+ __t1_framer_out(wc, 0x1c, 0xf0); /* Force Resync */
+ } else if (!(c & 0x02)) {
+ if ((wc->spanflags & FLAG_NMF)) {
+ __t1_framer_out(wc, 0x20, 0x9f); /* LIM0: Clear forced RAI */
+ wc->spanflags &= ~FLAG_NMF;
+ printk("NMF workaround off!\n");
+ }
+ }
+ } else {
+ /* Detect loopup code if we're not sending one */
+ if ((!wc->span.mainttimer) && (d & 0x08)) {
+ /* Loop-up code detected */
+ if ((wc->loopupcnt++ > 80) && (wc->span.maintstat != ZT_MAINT_REMOTELOOP)) {
+ __t1_framer_out(wc, 0x36, 0x08); /* LIM0: Disable any local loop */
+ __t1_framer_out(wc, 0x37, 0xf6 ); /* LIM1: Enable remote loop */
+ wc->span.maintstat = ZT_MAINT_REMOTELOOP;
+ }
+ } else
+ wc->loopupcnt = 0;
+ /* Same for loopdown code */
+ if ((!wc->span.mainttimer) && (d & 0x10)) {
+ /* Loop-down code detected */
+ if ((wc->loopdowncnt++ > 80) && (wc->span.maintstat == ZT_MAINT_REMOTELOOP)) {
+ __t1_framer_out(wc, 0x36, 0x08); /* LIM0: Disable any local loop */
+ __t1_framer_out(wc, 0x37, 0xf0 ); /* LIM1: Disable remote loop */
+ wc->span.maintstat = ZT_MAINT_NONE;
+ }
+ } else
+ wc->loopdowncnt = 0;
+ }
+
+ if (wc->span.lineconfig & ZT_CONFIG_NOTOPEN) {
+ for (x=0,j=0;x < wc->span.channels;x++)
+ if ((wc->span.chans[x].flags & ZT_FLAG_OPEN) ||
+ (wc->span.chans[x].flags & ZT_FLAG_NETDEV))
+ j++;
+ if (!j)
+ alarms |= ZT_ALARM_NOTOPEN;
+ }
+
+ if (c & 0xa0) {
+ if (wc->alarmcount >= alarmdebounce)
+ alarms |= ZT_ALARM_RED;
+ else
+ wc->alarmcount++;
+ } else
+ wc->alarmcount = 0;
+ if (c & 0x4)
+ alarms |= ZT_ALARM_BLUE;
+
+ if (((!wc->span.alarms) && alarms) ||
+ (wc->span.alarms && (!alarms)))
+ wc->checktiming = 1;
+
+ /* Keep track of recovering */
+ if ((!alarms) && wc->span.alarms)
+ wc->alarmtimer = ZT_ALARMSETTLE_TIME;
+ if (wc->alarmtimer)
+ alarms |= ZT_ALARM_RECOVER;
+
+ /* If receiving alarms, go into Yellow alarm state */
+ if (alarms && !(wc->spanflags & FLAG_SENDINGYELLOW)) {
+ unsigned char fmr4;
+#if 1
+ printk("wcte1xxp: Setting yellow alarm\n");
+#endif
+ /* We manually do yellow alarm to handle RECOVER and NOTOPEN, otherwise it's auto anyway */
+ fmr4 = __t1_framer_in(wc, 0x20);
+ __t1_framer_out(wc, 0x20, fmr4 | 0x20);
+ wc->spanflags |= FLAG_SENDINGYELLOW;
+ } else if ((!alarms) && (wc->spanflags & FLAG_SENDINGYELLOW)) {
+ unsigned char fmr4;
+#if 1
+ printk("wcte1xxp: Clearing yellow alarm\n");
+#endif
+ /* We manually do yellow alarm to handle RECOVER */
+ fmr4 = __t1_framer_in(wc, 0x20);
+ __t1_framer_out(wc, 0x20, fmr4 & ~0x20);
+ wc->spanflags &= ~FLAG_SENDINGYELLOW;
+ }
+
+ /* Re-check the timing source when we enter/leave alarm, not withstanding
+ yellow alarm */
+ if (c & 0x10)
+ alarms |= ZT_ALARM_YELLOW;
+ if (wc->span.mainttimer || wc->span.maintstat)
+ alarms |= ZT_ALARM_LOOPBACK;
+ wc->span.alarms = alarms;
+ zt_alarm_notify(&wc->span);
+}
+
+
+static void __t1_do_counters(struct t1 *wc)
+{
+ if (wc->alarmtimer) {
+ if (!--wc->alarmtimer) {
+ wc->span.alarms &= ~(ZT_ALARM_RECOVER);
+ zt_alarm_notify(&wc->span);
+ }
+ }
+}
+
+#ifdef LINUX26
+static irqreturn_t t1xxp_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+#else
+static void t1xxp_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+#endif
+{
+ struct t1 *wc = dev_id;
+ unsigned char ints;
+ unsigned long flags;
+ int x;
+
+ ints = inb(wc->ioaddr + WC_INTSTAT);
+ outb(ints, wc->ioaddr + WC_INTSTAT);
+
+ if (!ints)
+#ifdef LINUX26
+ return IRQ_NONE;
+#else
+ return;
+#endif
+
+ if (!wc->intcount) {
+ if (debug) printk("Got interrupt: 0x%04x\n", ints);
+ }
+ wc->intcount++;
+
+ if (wc->clocktimeout && !--wc->clocktimeout)
+ control_set_reg(wc, WC_CLOCK, 0x04 | wc->sync | clockextra);
+
+ if (ints & 0x0f) {
+ t1xxp_receiveprep(wc, ints);
+ t1xxp_transmitprep(wc, ints);
+ }
+ spin_lock_irqsave(&wc->lock, flags);
+
+#if 1
+ __handle_leds(wc);
+#endif
+
+ /* Count down timers */
+ __t1_do_counters(wc);
+
+ /* Do some things that we don't have to do very often */
+ x = wc->intcount & 15 /* 63 */;
+ switch(x) {
+ case 0:
+ case 1:
+ break;
+ case 2:
+ __t1_check_sigbits(wc);
+ break;
+ case 4:
+ /* Check alarms 1/4 as frequently */
+ if (!(wc->intcount & 0x30))
+ __t1_check_alarms(wc);
+ break;
+ }
+
+ spin_unlock_irqrestore(&wc->lock, flags);
+
+ if (ints & 0x10)
+ printk("PCI Master abort\n");
+
+ if (ints & 0x20)
+ printk("PCI Target abort\n");
+
+#ifdef LINUX26
+ return IRQ_RETVAL(1);
+#endif
+}
+
+static int t1xxp_hardware_init(struct t1 *wc)
+{
+ unsigned int falcver;
+ unsigned int x;
+ /* Hardware PCI stuff */
+ /* Reset chip and registers */
+ outb(DELAY | 0x0e, wc->ioaddr + WC_CNTL);
+ /* Set all outputs to 0 */
+ outb(0x00, wc->ioaddr + WC_AUXD);
+ /* Set all to outputs except AUX1 (TDO). */
+ outb(0xfd, wc->ioaddr + WC_AUXC);
+ /* Configure the serial port: double clock, 20ns width, no inversion,
+ MSB first */
+ outb(0xc8, wc->ioaddr + WC_SERC);
+
+ /* Internally delay FSC by one */
+ outb(0x01, wc->ioaddr + WC_FSCDELAY);
+
+ /* Back to normal, with automatic DMA wrap around */
+ outb(DELAY | 0x01, wc->ioaddr + WC_CNTL);
+
+ /* Make sure serial port and DMA are out of reset */
+ outb(inb(wc->ioaddr + WC_CNTL) & 0xf9, WC_CNTL);
+
+ /* Setup DMA Addresses */
+ /* Start at writedma */
+ outl(wc->writedma, wc->ioaddr + WC_DMAWS); /* Write start */
+ /* First frame */
+ outl(wc->writedma + ZT_CHUNKSIZE * 32 - 4, wc->ioaddr + WC_DMAWI); /* Middle (interrupt) */
+ /* Second frame */
+ outl(wc->writedma + ZT_CHUNKSIZE * 32 * 2 - 4, wc->ioaddr + WC_DMAWE); /* End */
+
+ outl(wc->readdma, wc->ioaddr + WC_DMARS); /* Read start */
+ /* First frame */
+ outl(wc->readdma + ZT_CHUNKSIZE * 32 - 4, wc->ioaddr + WC_DMARI); /* Middle (interrupt) */
+ /* Second frame */
+ outl(wc->readdma + ZT_CHUNKSIZE * 32 * 2 - 4, wc->ioaddr + WC_DMARE); /* End */
+
+ if (debug) printk("Setting up DMA (write/read = %08lx/%08lx)\n", (long)wc->writedma, (long)wc->readdma);
+
+ if (t1e1override > -1) {
+ if (t1e1override)
+ wc->spantype = TYPE_E1;
+ else
+ wc->spantype = TYPE_T1;
+ } else {
+ if (control_get_reg(wc, WC_CLOCK) & 0x20)
+ wc->spantype = TYPE_T1;
+ else
+ wc->spantype = TYPE_E1;
+ }
+
+ /* Check out the controller */
+ if (debug); printk("Controller version: %02x\n", control_get_reg(wc, WC_VERSION));
+
+
+ control_set_reg(wc, WC_LEDTEST, 0x00);
+
+ if (wc->spantype == TYPE_E1)
+ wc->chanmap = chanmap_e1;
+ else
+ wc->chanmap = chanmap_t1;
+ /* Setup clock appropriately */
+ control_set_reg(wc, WC_CLOCK, 0x06 | wc->sync | clockextra);
+ wc->clocktimeout = 100;
+
+ /* Perform register test on FALC */
+ for (x=0;x<256;x++) {
+ t1_framer_out(wc, 0x14, x);
+ if ((falcver = t1_framer_in(wc, 0x14)) != x)
+ printk("Wrote '%x' but read '%x'\n", x, falcver);
+ }
+
+ t1_framer_out(wc, 0x4a, 0xaa);
+ falcver = t1_framer_in(wc ,0x4a);
+ printk("FALC version: %08x\n", falcver);
+ if (!falcver)
+ wc->spanflags |= FLAG_FALC12;
+
+
+ start_alarm(wc);
+ return 0;
+
+}
+
+static int __devinit t1xxp_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+ int res;
+ struct t1 *wc;
+ unsigned int *canary;
+
+ if (pci_enable_device(pdev)) {
+ res = -EIO;
+ } else {
+ wc = kmalloc(sizeof(struct t1), GFP_KERNEL);
+ if (wc) {
+ memset(wc, 0x0, sizeof(struct t1));
+ spin_lock_init(&wc->lock);
+ wc->ioaddr = pci_resource_start(pdev, 0);
+ wc->dev = pdev;
+ wc->offset = 28; /* And you thought 42 was the answer */
+
+ wc->writechunk =
+ /* 32 channels, Double-buffer, Read/Write */
+ (unsigned char *)pci_alloc_consistent(pdev, ZT_MAX_CHUNKSIZE * 32 * 2 * 2, &wc->writedma);
+ if (!wc->writechunk) {
+ printk("wcte11xp: Unable to allocate DMA-able memory\n");
+ return -ENOMEM;
+ }
+
+ /* Read is after the whole write piece (in bytes) */
+ wc->readchunk = wc->writechunk + ZT_CHUNKSIZE * 32 * 2;
+
+ /* Same thing... */
+ wc->readdma = wc->writedma + ZT_CHUNKSIZE * 32 * 2;
+
+ /* Initialize Write/Buffers to all blank data */
+ memset((void *)wc->writechunk,0x00,ZT_MAX_CHUNKSIZE * 2 * 2 * 32);
+ /* Initialize canary */
+ canary = (unsigned int *)(wc->readchunk + ZT_CHUNKSIZE * 64 - 4);
+ *canary = (CANARY << 16) | (0xffff);
+
+ /* Enable bus mastering */
+ pci_set_master(pdev);
+
+ /* Keep track of which device we are */
+ pci_set_drvdata(pdev, wc);
+
+ if (request_irq(pdev->irq, t1xxp_interrupt, SA_INTERRUPT | SA_SHIRQ, "t1xxp", wc)) {
+ printk("t1xxp: Unable to request IRQ %d\n", pdev->irq);
+ kfree(wc);
+ return -EIO;
+ }
+ /* Initialize hardware */
+ t1xxp_hardware_init(wc);
+
+ /* We now know which version of card we have */
+ wc->variety = "Digium Wildcard TE110P T1/E1";
+
+ /* Misc. software stuff */
+ t1xxp_software_init(wc);
+
+ printk("Found a Wildcard: %s\n", wc->variety);
+ res = 0;
+ } else
+ res = -ENOMEM;
+ }
+ return res;
+}
+
+static void t1xxp_stop_stuff(struct t1 *wc)
+{
+ /* Kill clock */
+ control_set_reg(wc, WC_CLOCK, 0);
+
+ /* Turn off LED's */
+ control_set_reg(wc, WC_LEDTEST, 0);
+
+}
+
+static void __devexit t1xxp_remove_one(struct pci_dev *pdev)
+{
+ struct t1 *wc = pci_get_drvdata(pdev);
+ if (wc) {
+
+ /* Stop any DMA */
+ __t1xxp_stop_dma(wc);
+
+ /* In case hardware is still there */
+ __t1xxp_disable_interrupts(wc);
+
+ t1xxp_stop_stuff(wc);
+
+ /* Immediately free resources */
+ pci_free_consistent(pdev, ZT_MAX_CHUNKSIZE * 2 * 2 * 32 * 4, (void *)wc->writechunk, wc->writedma);
+ free_irq(pdev->irq, wc);
+
+ /* Reset PCI chip and registers */
+ outb(DELAY | 0x0e, wc->ioaddr + WC_CNTL);
+
+ /* Release span, possibly delayed */
+ if (!wc->usecount)
+ t1xxp_release(wc);
+ else
+ wc->dead = 1;
+ }
+}
+
+static struct pci_device_id t1xxp_pci_tbl[] = {
+ { 0xe159, 0x0001, 0x79fe, PCI_ANY_ID, 0, 0, (unsigned long) "Digium Wildcard TE110P T1/E1 Board" },
+ { 0 }
+};
+
+MODULE_DEVICE_TABLE(pci,t1xxp_pci_tbl);
+
+static struct pci_driver t1xxp_driver = {
+ name: "t1xxp",
+ probe: t1xxp_init_one,
+#ifdef LINUX26
+ remove: __devexit_p(t1xxp_remove_one),
+#else
+ remove: t1xxp_remove_one,
+#endif
+ suspend: NULL,
+ resume: NULL,
+ id_table: t1xxp_pci_tbl,
+};
+
+static int __init t1xxp_init(void)
+{
+ int res;
+ res = pci_module_init(&t1xxp_driver);
+ if (res)
+ return -ENODEV;
+ return 0;
+}
+
+static void __exit t1xxp_cleanup(void)
+{
+ pci_unregister_driver(&t1xxp_driver);
+}
+
+MODULE_PARM(alarmdebounce, "i");
+MODULE_PARM(loopback, "i");
+MODULE_PARM(t1e1override, "i");
+MODULE_PARM(clockextra, "i");
+MODULE_PARM(debug, "i");
+MODULE_DESCRIPTION("Wildcard T100P/E100P Zaptel Driver");
+MODULE_AUTHOR("Mark Spencer <markster@linux-support.net>");
+#ifdef MODULE_LICENSE
+MODULE_LICENSE("GPL");
+#endif
+
+module_init(t1xxp_init);
+module_exit(t1xxp_cleanup);