623 lines
16 KiB
C
623 lines
16 KiB
C
/*
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* $Id$
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*
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* Module for AVM T1 HEMA-card.
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*
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* (c) Copyright 1999 by Carsten Paeth (calle@calle.in-berlin.de)
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*
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* $Log$
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* Revision 1.9 2000/01/25 14:37:39 calle
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* new message after successfull detection including card revision and
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* used resources.
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*
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* Revision 1.8 1999/11/05 16:38:01 calle
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* Cleanups before kernel 2.4:
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* - Changed all messages to use card->name or driver->name instead of
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* constant string.
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* - Moved some data from struct avmcard into new struct avmctrl_info.
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* Changed all lowlevel capi driver to match the new structur.
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*
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* Revision 1.7 1999/09/15 08:16:03 calle
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* Implementation of 64Bit extention complete.
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*
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* Revision 1.6 1999/09/07 09:02:53 calle
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* SETDATA removed. Now inside the kernel the datapart of DATA_B3_REQ and
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* DATA_B3_IND is always directly after the CAPI message. The "Data" member
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* ist never used inside the kernel.
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*
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* Revision 1.5 1999/08/22 20:26:28 calle
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* backported changes from kernel 2.3.14:
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* - several #include "config.h" gone, others come.
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* - "struct device" changed to "struct net_device" in 2.3.14, added a
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* define in isdn_compat.h for older kernel versions.
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*
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* Revision 1.4 1999/07/09 15:05:50 keil
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* compat.h is now isdn_compat.h
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*
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* Revision 1.3 1999/07/06 07:42:04 calle
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* - changes in /proc interface
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* - check and changed calls to [dev_]kfree_skb and [dev_]alloc_skb.
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*
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* Revision 1.2 1999/07/05 15:09:54 calle
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* - renamed "appl_release" to "appl_released".
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* - version und profile data now cleared on controller reset
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* - extended /proc interface, to allow driver and controller specific
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* informations to include by driver hackers.
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*
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* Revision 1.1 1999/07/01 15:26:44 calle
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* complete new version (I love it):
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* + new hardware independed "capi_driver" interface that will make it easy to:
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* - support other controllers with CAPI-2.0 (i.e. USB Controller)
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* - write a CAPI-2.0 for the passive cards
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* - support serial link CAPI-2.0 boxes.
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* + wrote "capi_driver" for all supported cards.
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* + "capi_driver" (supported cards) now have to be configured with
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* make menuconfig, in the past all supported cards where included
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* at once.
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* + new and better informations in /proc/capi/
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* + new ioctl to switch trace of capi messages per controller
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* using "avmcapictrl trace [contr] on|off|...."
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* + complete testcircle with all supported cards and also the
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* PCMCIA cards (now patch for pcmcia-cs-3.0.13 needed) done.
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*
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*
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/skbuff.h>
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#include <linux/delay.h>
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#include <linux/mm.h>
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#include <linux/interrupt.h>
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#include <linux/ioport.h>
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#include <linux/capi.h>
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#include <asm/io.h>
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#include <linux/isdn_compat.h>
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#include "capicmd.h"
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#include "capiutil.h"
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#include "capilli.h"
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#include "avmcard.h"
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static char *revision = "$Revision$";
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/* ------------------------------------------------------------- */
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MODULE_AUTHOR("Carsten Paeth <calle@calle.in-berlin.de>");
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/* ------------------------------------------------------------- */
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static struct capi_driver_interface *di;
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/* ------------------------------------------------------------- */
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static int hema_irq_table[16] =
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{0,
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0,
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0,
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0x80, /* irq 3 */
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0,
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0x90, /* irq 5 */
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0,
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0xA0, /* irq 7 */
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0,
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0xB0, /* irq 9 */
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0xC0, /* irq 10 */
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0xD0, /* irq 11 */
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0xE0, /* irq 12 */
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0,
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0,
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0xF0, /* irq 15 */
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};
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static int t1_detectandinit(unsigned int base, unsigned irq, int cardnr)
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{
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unsigned char cregs[8];
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unsigned char reverse_cardnr;
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unsigned long flags;
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unsigned char dummy;
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int i;
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reverse_cardnr = ((cardnr & 0x01) << 3) | ((cardnr & 0x02) << 1)
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| ((cardnr & 0x04) >> 1) | ((cardnr & 0x08) >> 3);
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cregs[0] = (HEMA_VERSION_ID << 4) | (reverse_cardnr & 0xf);
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cregs[1] = 0x00; /* fast & slow link connected to CON1 */
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cregs[2] = 0x05; /* fast link 20MBit, slow link 20 MBit */
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cregs[3] = 0;
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cregs[4] = 0x11; /* zero wait state */
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cregs[5] = hema_irq_table[irq & 0xf];
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cregs[6] = 0;
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cregs[7] = 0;
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save_flags(flags);
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cli();
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/* board reset */
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t1outp(base, T1_RESETBOARD, 0xf);
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udelay(100 * 1000);
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dummy = t1inp(base, T1_FASTLINK+T1_OUTSTAT); /* first read */
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/* write config */
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dummy = (base >> 4) & 0xff;
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for (i=1;i<=0xf;i++) t1outp(base, i, dummy);
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t1outp(base, HEMA_PAL_ID & 0xf, dummy);
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t1outp(base, HEMA_PAL_ID >> 4, cregs[0]);
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for(i=1;i<7;i++) t1outp(base, 0, cregs[i]);
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t1outp(base, ((base >> 4)) & 0x3, cregs[7]);
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restore_flags(flags);
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udelay(100 * 1000);
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t1outp(base, T1_FASTLINK+T1_RESETLINK, 0);
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t1outp(base, T1_SLOWLINK+T1_RESETLINK, 0);
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udelay(10 * 1000);
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t1outp(base, T1_FASTLINK+T1_RESETLINK, 1);
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t1outp(base, T1_SLOWLINK+T1_RESETLINK, 1);
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udelay(100 * 1000);
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t1outp(base, T1_FASTLINK+T1_RESETLINK, 0);
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t1outp(base, T1_SLOWLINK+T1_RESETLINK, 0);
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udelay(10 * 1000);
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t1outp(base, T1_FASTLINK+T1_ANALYSE, 0);
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udelay(5 * 1000);
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t1outp(base, T1_SLOWLINK+T1_ANALYSE, 0);
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if (t1inp(base, T1_FASTLINK+T1_OUTSTAT) != 0x1) /* tx empty */
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return 1;
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if (t1inp(base, T1_FASTLINK+T1_INSTAT) != 0x0) /* rx empty */
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return 2;
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if (t1inp(base, T1_FASTLINK+T1_IRQENABLE) != 0x0)
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return 3;
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if ((t1inp(base, T1_FASTLINK+T1_FIFOSTAT) & 0xf0) != 0x70)
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return 4;
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if ((t1inp(base, T1_FASTLINK+T1_IRQMASTER) & 0x0e) != 0)
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return 5;
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if ((t1inp(base, T1_FASTLINK+T1_IDENT) & 0x7d) != 1)
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return 6;
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if (t1inp(base, T1_SLOWLINK+T1_OUTSTAT) != 0x1) /* tx empty */
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return 7;
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if ((t1inp(base, T1_SLOWLINK+T1_IRQMASTER) & 0x0e) != 0)
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return 8;
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if ((t1inp(base, T1_SLOWLINK+T1_IDENT) & 0x7d) != 0)
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return 9;
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return 0;
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}
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static void t1_handle_interrupt(avmcard * card)
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{
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avmctrl_info *cinfo = &card->ctrlinfo[0];
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struct capi_ctr *ctrl = cinfo->capi_ctrl;
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unsigned char b1cmd;
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struct sk_buff *skb;
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unsigned ApplId;
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unsigned MsgLen;
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unsigned DataB3Len;
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unsigned NCCI;
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unsigned WindowSize;
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while (b1_rx_full(card->port)) {
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b1cmd = b1_get_byte(card->port);
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switch (b1cmd) {
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case RECEIVE_DATA_B3_IND:
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ApplId = (unsigned) b1_get_word(card->port);
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MsgLen = t1_get_slice(card->port, card->msgbuf);
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DataB3Len = t1_get_slice(card->port, card->databuf);
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if (MsgLen < 30) { /* not CAPI 64Bit */
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memset(card->msgbuf+MsgLen, 0, 30-MsgLen);
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MsgLen = 30;
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CAPIMSG_SETLEN(card->msgbuf, 30);
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}
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if (!(skb = alloc_skb(DataB3Len+MsgLen, GFP_ATOMIC))) {
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printk(KERN_ERR "%s: incoming packet dropped\n",
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card->name);
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} else {
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memcpy(skb_put(skb, MsgLen), card->msgbuf, MsgLen);
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memcpy(skb_put(skb, DataB3Len), card->databuf, DataB3Len);
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ctrl->handle_capimsg(ctrl, ApplId, skb);
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}
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break;
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case RECEIVE_MESSAGE:
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ApplId = (unsigned) b1_get_word(card->port);
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MsgLen = t1_get_slice(card->port, card->msgbuf);
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if (!(skb = alloc_skb(MsgLen, GFP_ATOMIC))) {
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printk(KERN_ERR "%s: incoming packet dropped\n",
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card->name);
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} else {
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memcpy(skb_put(skb, MsgLen), card->msgbuf, MsgLen);
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ctrl->handle_capimsg(ctrl, ApplId, skb);
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}
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break;
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case RECEIVE_NEW_NCCI:
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ApplId = b1_get_word(card->port);
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NCCI = b1_get_word(card->port);
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WindowSize = b1_get_word(card->port);
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ctrl->new_ncci(ctrl, ApplId, NCCI, WindowSize);
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break;
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case RECEIVE_FREE_NCCI:
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ApplId = b1_get_word(card->port);
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NCCI = b1_get_word(card->port);
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if (NCCI != 0xffffffff)
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ctrl->free_ncci(ctrl, ApplId, NCCI);
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else ctrl->appl_released(ctrl, ApplId);
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break;
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case RECEIVE_START:
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b1_put_byte(card->port, SEND_POLLACK);
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ctrl->resume_output(ctrl);
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break;
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case RECEIVE_STOP:
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ctrl->suspend_output(ctrl);
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break;
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case RECEIVE_INIT:
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cinfo->versionlen = t1_get_slice(card->port, cinfo->versionbuf);
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b1_parse_version(cinfo);
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printk(KERN_INFO "%s: %s-card (%s) now active\n",
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card->name,
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cinfo->version[VER_CARDTYPE],
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cinfo->version[VER_DRIVER]);
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ctrl->ready(ctrl);
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break;
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case RECEIVE_TASK_READY:
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ApplId = (unsigned) b1_get_word(card->port);
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MsgLen = t1_get_slice(card->port, card->msgbuf);
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card->msgbuf[MsgLen--] = 0;
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while ( MsgLen >= 0
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&& ( card->msgbuf[MsgLen] == '\n'
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|| card->msgbuf[MsgLen] == '\r'))
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card->msgbuf[MsgLen--] = 0;
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printk(KERN_INFO "%s: task %d \"%s\" ready.\n",
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card->name, ApplId, card->msgbuf);
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break;
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case RECEIVE_DEBUGMSG:
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MsgLen = t1_get_slice(card->port, card->msgbuf);
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card->msgbuf[MsgLen--] = 0;
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while ( MsgLen >= 0
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&& ( card->msgbuf[MsgLen] == '\n'
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|| card->msgbuf[MsgLen] == '\r'))
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card->msgbuf[MsgLen--] = 0;
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printk(KERN_INFO "%s: DEBUG: %s\n", card->name, card->msgbuf);
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break;
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case 0xff:
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printk(KERN_ERR "%s: card reseted ?\n", card->name);
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return;
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default:
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printk(KERN_ERR "%s: b1_interrupt: 0x%x ???\n",
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card->name, b1cmd);
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return;
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}
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}
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}
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/* ------------------------------------------------------------- */
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static void t1isa_interrupt(int interrupt, void *devptr, struct pt_regs *regs)
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{
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avmcard *card;
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card = (avmcard *) devptr;
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if (!card) {
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printk(KERN_WARNING "t1isa: interrupt: wrong device\n");
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return;
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}
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if (card->interrupt) {
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printk(KERN_ERR "%s: reentering interrupt hander.\n",
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card->name);
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return;
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}
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card->interrupt = 1;
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t1_handle_interrupt(card);
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card->interrupt = 0;
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}
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/* ------------------------------------------------------------- */
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static int t1isa_load_firmware(struct capi_ctr *ctrl, capiloaddata *data)
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{
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avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
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avmcard *card = cinfo->card;
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unsigned int port = card->port;
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unsigned long flags;
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int retval;
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t1_disable_irq(port);
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b1_reset(port);
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if ((retval = b1_load_t4file(card, &data->firmware))) {
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b1_reset(port);
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printk(KERN_ERR "%s: failed to load t4file!!\n",
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card->name);
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return retval;
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}
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if (data->configuration.len > 0 && data->configuration.data) {
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if ((retval = b1_load_config(card, &data->configuration))) {
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b1_reset(port);
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printk(KERN_ERR "%s: failed to load config!!\n",
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card->name);
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return retval;
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}
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}
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if (!b1_loaded(card)) {
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printk(KERN_ERR "%s: failed to load t4file.\n", card->name);
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return -EIO;
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}
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save_flags(flags);
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cli();
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b1_setinterrupt(port, card->irq, card->cardtype);
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b1_put_byte(port, SEND_INIT);
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b1_put_word(port, AVM_NAPPS);
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b1_put_word(port, AVM_NCCI_PER_CHANNEL*30);
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b1_put_word(port, ctrl->cnr - 1);
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restore_flags(flags);
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return 0;
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}
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void t1isa_reset_ctr(struct capi_ctr *ctrl)
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{
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avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
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avmcard *card = cinfo->card;
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unsigned int port = card->port;
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t1_disable_irq(port);
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b1_reset(port);
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b1_reset(port);
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memset(cinfo->version, 0, sizeof(cinfo->version));
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ctrl->reseted(ctrl);
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}
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static void t1isa_remove_ctr(struct capi_ctr *ctrl)
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{
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avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
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avmcard *card = cinfo->card;
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unsigned int port = card->port;
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t1_disable_irq(port);
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b1_reset(port);
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b1_reset(port);
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t1_reset(port);
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di->detach_ctr(ctrl);
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free_irq(card->irq, card);
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release_region(card->port, AVMB1_PORTLEN);
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kfree(card->ctrlinfo);
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kfree(card);
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MOD_DEC_USE_COUNT;
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}
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|
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/* ------------------------------------------------------------- */
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static int t1isa_add_card(struct capi_driver *driver, struct capicardparams *p)
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{
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struct capi_ctr *ctrl;
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avmctrl_info *cinfo;
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avmcard *card;
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int retval;
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MOD_INC_USE_COUNT;
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card = (avmcard *) kmalloc(sizeof(avmcard), GFP_ATOMIC);
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if (!card) {
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printk(KERN_WARNING "%s: no memory.\n", driver->name);
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MOD_DEC_USE_COUNT;
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return -ENOMEM;
|
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}
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memset(card, 0, sizeof(avmcard));
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cinfo = (avmctrl_info *) kmalloc(sizeof(avmctrl_info), GFP_ATOMIC);
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if (!cinfo) {
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printk(KERN_WARNING "%s: no memory.\n", driver->name);
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kfree(card);
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MOD_DEC_USE_COUNT;
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return -ENOMEM;
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}
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memset(cinfo, 0, sizeof(avmctrl_info));
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card->ctrlinfo = cinfo;
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cinfo->card = card;
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sprintf(card->name, "t1isa-%x", p->port);
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card->port = p->port;
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card->irq = p->irq;
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card->cardtype = avm_t1isa;
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card->cardnr = p->cardnr;
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if (!(((card->port & 0x7) == 0) && ((card->port & 0x30) != 0x30))) {
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printk(KERN_WARNING "%s: illegal port 0x%x.\n",
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driver->name, card->port);
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kfree(card->ctrlinfo);
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kfree(card);
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MOD_DEC_USE_COUNT;
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return -EINVAL;
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}
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|
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if (check_region(card->port, AVMB1_PORTLEN)) {
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printk(KERN_WARNING
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"%s: ports 0x%03x-0x%03x in use.\n",
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driver->name, card->port, card->port + AVMB1_PORTLEN);
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kfree(card->ctrlinfo);
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kfree(card);
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MOD_DEC_USE_COUNT;
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return -EBUSY;
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}
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if (hema_irq_table[card->irq & 0xf] == 0) {
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printk(KERN_WARNING "%s: irq %d not valid.\n",
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driver->name, card->irq);
|
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kfree(card->ctrlinfo);
|
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kfree(card);
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MOD_DEC_USE_COUNT;
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return -EINVAL;
|
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}
|
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for (ctrl = driver->controller; ctrl; ctrl = ctrl->next) {
|
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avmcard *cardp = ((avmctrl_info *)(ctrl->driverdata))->card;
|
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if (cardp->cardnr == card->cardnr) {
|
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printk(KERN_WARNING "%s: card with number %d already installed at 0x%x.\n",
|
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driver->name, card->cardnr, cardp->port);
|
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kfree(card->ctrlinfo);
|
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kfree(card);
|
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MOD_DEC_USE_COUNT;
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return -EBUSY;
|
|
}
|
|
}
|
|
if ((retval = t1_detectandinit(card->port, card->irq, card->cardnr)) != 0) {
|
|
printk(KERN_NOTICE "%s: NO card at 0x%x (%d)\n",
|
|
driver->name, card->port, retval);
|
|
kfree(card->ctrlinfo);
|
|
kfree(card);
|
|
MOD_DEC_USE_COUNT;
|
|
return -EIO;
|
|
}
|
|
t1_disable_irq(card->port);
|
|
b1_reset(card->port);
|
|
|
|
request_region(p->port, AVMB1_PORTLEN, card->name);
|
|
|
|
retval = request_irq(card->irq, t1isa_interrupt, 0, card->name, card);
|
|
if (retval) {
|
|
printk(KERN_ERR "%s: unable to get IRQ %d.\n",
|
|
driver->name, card->irq);
|
|
release_region(card->port, AVMB1_PORTLEN);
|
|
kfree(card->ctrlinfo);
|
|
kfree(card);
|
|
MOD_DEC_USE_COUNT;
|
|
return -EBUSY;
|
|
}
|
|
|
|
cinfo->capi_ctrl = di->attach_ctr(driver, card->name, cinfo);
|
|
if (!cinfo->capi_ctrl) {
|
|
printk(KERN_ERR "%s: attach controller failed.\n",
|
|
driver->name);
|
|
free_irq(card->irq, card);
|
|
release_region(card->port, AVMB1_PORTLEN);
|
|
kfree(card->ctrlinfo);
|
|
kfree(card);
|
|
MOD_DEC_USE_COUNT;
|
|
return -EBUSY;
|
|
}
|
|
|
|
printk(KERN_INFO
|
|
"%s: AVM T1 ISA at i/o %#x, irq %d, card %d\n",
|
|
driver->name, card->port, card->irq, card->cardnr);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void t1isa_send_message(struct capi_ctr *ctrl, struct sk_buff *skb)
|
|
{
|
|
avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
|
|
avmcard *card = cinfo->card;
|
|
unsigned int port = card->port;
|
|
unsigned long flags;
|
|
__u16 len = CAPIMSG_LEN(skb->data);
|
|
__u8 cmd = CAPIMSG_COMMAND(skb->data);
|
|
__u8 subcmd = CAPIMSG_SUBCOMMAND(skb->data);
|
|
|
|
save_flags(flags);
|
|
cli();
|
|
if (CAPICMD(cmd, subcmd) == CAPI_DATA_B3_REQ) {
|
|
__u16 dlen = CAPIMSG_DATALEN(skb->data);
|
|
b1_put_byte(port, SEND_DATA_B3_REQ);
|
|
t1_put_slice(port, skb->data, len);
|
|
t1_put_slice(port, skb->data + len, dlen);
|
|
} else {
|
|
b1_put_byte(port, SEND_MESSAGE);
|
|
t1_put_slice(port, skb->data, len);
|
|
}
|
|
restore_flags(flags);
|
|
dev_kfree_skb(skb);
|
|
}
|
|
/* ------------------------------------------------------------- */
|
|
|
|
static char *t1isa_procinfo(struct capi_ctr *ctrl)
|
|
{
|
|
avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
|
|
|
|
if (!cinfo)
|
|
return "";
|
|
sprintf(cinfo->infobuf, "%s %s 0x%x %d %d",
|
|
cinfo->cardname[0] ? cinfo->cardname : "-",
|
|
cinfo->version[VER_DRIVER] ? cinfo->version[VER_DRIVER] : "-",
|
|
cinfo->card ? cinfo->card->port : 0x0,
|
|
cinfo->card ? cinfo->card->irq : 0,
|
|
cinfo->card ? cinfo->card->cardnr : 0
|
|
);
|
|
return cinfo->infobuf;
|
|
}
|
|
|
|
|
|
/* ------------------------------------------------------------- */
|
|
|
|
static struct capi_driver t1isa_driver = {
|
|
"t1isa",
|
|
"0.0",
|
|
t1isa_load_firmware,
|
|
t1isa_reset_ctr,
|
|
t1isa_remove_ctr,
|
|
b1_register_appl,
|
|
b1_release_appl,
|
|
t1isa_send_message,
|
|
|
|
t1isa_procinfo,
|
|
b1ctl_read_proc,
|
|
0, /* use standard driver_read_proc */
|
|
|
|
t1isa_add_card,
|
|
};
|
|
|
|
#ifdef MODULE
|
|
#define t1isa_init init_module
|
|
void cleanup_module(void);
|
|
#endif
|
|
|
|
int t1isa_init(void)
|
|
{
|
|
struct capi_driver *driver = &t1isa_driver;
|
|
char *p;
|
|
|
|
if ((p = strchr(revision, ':'))) {
|
|
strncpy(driver->revision, p + 1, sizeof(driver->revision));
|
|
p = strchr(driver->revision, '$');
|
|
*p = 0;
|
|
}
|
|
|
|
printk(KERN_INFO "%s: revision %s\n", driver->name, driver->revision);
|
|
|
|
di = attach_capi_driver(driver);
|
|
|
|
if (!di) {
|
|
printk(KERN_ERR "%s: failed to attach capi_driver\n",
|
|
driver->name);
|
|
return -EIO;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#ifdef MODULE
|
|
void cleanup_module(void)
|
|
{
|
|
detach_capi_driver(&t1isa_driver);
|
|
}
|
|
#endif
|