patch-2.1.37 linux/drivers/isdn/teles/card.c
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- Lines: 1901
- Date:
Wed Dec 31 16:00:00 1969
- Orig file:
v2.1.36/linux/drivers/isdn/teles/card.c
- Orig date:
Thu Feb 27 10:57:30 1997
diff -u --recursive --new-file v2.1.36/linux/drivers/isdn/teles/card.c linux/drivers/isdn/teles/card.c
@@ -1,1900 +0,0 @@
-/* $Id: card.c,v 1.16 1996/10/22 23:14:16 fritz Exp $
- *
- * card.c low level stuff for the Teles S0 isdn card
- *
- * Author Jan den Ouden
- *
- * Beat Doebeli log all D channel traffic
- *
- * $Log: card.c,v $
- * Revision 1.16 1996/10/22 23:14:16 fritz
- * Changes for compatibility to 2.0.X and 2.1.X kernels.
- *
- * Revision 1.15 1996/09/29 19:41:56 fritz
- * Bugfix: ignore unknown frames.
- *
- * Revision 1.14 1996/09/23 01:53:49 fritz
- * Bugfix: discard unknown frames (non-EDSS1 and non-1TR6).
- *
- * Revision 1.13 1996/07/18 11:21:24 jdenoud
- * Use small buffers for incoming audio data
- *
- * Revision 1.12 1996/06/24 17:16:52 fritz
- * Added check for misconfigured membase.
- *
- * Revision 1.11 1996/06/14 03:30:37 fritz
- * Added recovery from EXIR 40 interrupt.
- * Some cleanup.
- *
- * Revision 1.10 1996/06/11 14:57:20 hipp
- * minor changes to ensure, that SKBs are sent in the right order
- *
- * Revision 1.9 1996/06/06 14:42:09 fritz
- * Bugfix: forgot hsp-> in last change.
- *
- * Revision 1.7 1996/05/31 01:02:21 fritz
- * Cosmetic changes.
- *
- * Revision 1.6 1996/05/26 14:58:10 fritz
- * Bugfix: Did not show port correctly, when no card found.
- *
- * Revision 1.5 1996/05/17 03:45:02 fritz
- * Made error messages more clearly.
- * Bugfix: Only 31 bytes of 32-byte audio frames
- * have been transfered to upper layers.
- *
- * Revision 1.4 1996/05/06 10:17:57 fritz
- * Added voice-send stuff
- * (Not reporting EXIR when in voice-mode, since it's normal).
- *
- * Revision 1.3 1996/04/30 22:02:40 isdn4dev
- * Bugfixes for 16.3
- * -improved IO allocation
- * -fix second B channel problem
- * -correct ph_command patch
- *
- * Revision 1.2 1996/04/30 10:00:59 fritz
- * Bugfix: Added ph_command(8) for 16.3.
- * Bugfix: Ports did not get registered correctly
- * when using a 16.3.
- * Started voice support.
- * Some experimental changes of waitforXFW().
- *
- * Revision 1.1 1996/04/13 10:22:42 fritz
- * Initial revision
- *
- *
- */
-
-#define __NO_VERSION__
-#include "teles.h"
-#include "proto.h"
-
-#define INCLUDE_INLINE_FUNCS
-#include <linux/tqueue.h>
-#include <linux/interrupt.h>
-
-#undef DCHAN_VERBOSE
-
-extern void tei_handler(struct PStack *st, byte pr,
- struct BufHeader *ibh);
-extern struct IsdnCard cards[];
-extern int nrcards;
-
-#define byteout(addr,val) outb_p(val,addr)
-#define bytein(addr) inb_p(addr)
-
-static inline byte
-readisac_0(byte * cardm, byte offset)
-{
- return readb(cardm + 0x100 + ((offset & 1) ? 0x1ff : 0) + offset);
-}
-
-static inline byte
-readisac_3(int iobase, byte offset)
-{
- return (bytein(iobase - 0x420 + offset));
-}
-
-#define READISAC(mbase,ibase,ofs) \
- ((mbase)?readisac_0(mbase,ofs):readisac_3(ibase,ofs))
-
-static inline void
-writeisac_0(byte * cardm, byte offset, byte value)
-{
- writeb(value, cardm + 0x100 + ((offset & 1) ? 0x1ff : 0) + offset);
-}
-
-static inline void
-writeisac_3(int iobase, byte offset, byte value)
-{
- byteout(iobase - 0x420 + offset, value);
-}
-
-#define WRITEISAC(mbase,ibase,ofs,val) \
- ((mbase)?writeisac_0(mbase,ofs,val):writeisac_3(ibase,ofs,val))
-
-static inline void
-readisac_s(int iobase, byte offset, byte * dest, int count)
-{
- insb(iobase - 0x420 + offset, dest, count);
-}
-
-static inline void
-writeisac_s(int iobase, byte offset, byte * src, int count)
-{
- outsb(iobase - 0x420 + offset, src, count);
-}
-
-static inline byte
-readhscx_0(byte * base, byte hscx, byte offset)
-{
- return readb(base + 0x180 + ((offset & 1) ? 0x1FF : 0) +
- ((hscx & 1) ? 0x40 : 0) + offset);
-}
-
-static inline byte
-readhscx_3(int iobase, byte hscx, byte offset)
-{
- return (bytein(iobase - (hscx ? 0x820 : 0xc20) + offset));
-}
-
-#define READHSCX(mbase,ibase,hscx,ofs) \
- ((mbase)?readhscx_0(mbase,hscx,ofs):readhscx_3(ibase,hscx,ofs))
-
-static inline void
-writehscx_0(byte * base, byte hscx, byte offset, byte data)
-{
- writeb(data, base + 0x180 + ((offset & 1) ? 0x1FF : 0) +
- ((hscx & 1) ? 0x40 : 0) + offset);
-}
-
-static inline void
-writehscx_3(int iobase, byte hscx, byte offset, byte data)
-{
- byteout(iobase - (hscx ? 0x820 : 0xc20) + offset, data);
-}
-
-static inline void
-readhscx_s(int iobase, byte hscx, byte offset, byte * dest, int count)
-{
- insb(iobase - (hscx ? 0x820 : 0xc20) + offset, dest, count);
-}
-
-static inline void
-writehscx_s(int iobase, byte hscx, byte offset, byte * src, int count)
-{
- outsb(iobase - (hscx ? 0x820 : 0xc20) + offset, src, count);
-}
-
-#define ISAC_MASK 0x20
-#define ISAC_ISTA 0x20
-#define ISAC_STAR 0x21
-#define ISAC_CMDR 0x21
-#define ISAC_EXIR 0x24
-
-#define ISAC_RBCH 0x2a
-
-#define ISAC_ADF2 0x39
-#define ISAC_SPCR 0x30
-#define ISAC_ADF1 0x38
-#define ISAC_CIX0 0x31
-#define ISAC_STCR 0x37
-#define ISAC_MODE 0x22
-#define ISAC_RSTA 0x27
-#define ISAC_RBCL 0x25
-#define ISAC_TIMR 0x23
-#define ISAC_SQXR 0x3b
-
-#define HSCX_ISTA 0x20
-#define HSCX_CCR1 0x2f
-#define HSCX_CCR2 0x2c
-#define HSCX_TSAR 0x31
-#define HSCX_TSAX 0x30
-#define HSCX_XCCR 0x32
-#define HSCX_RCCR 0x33
-#define HSCX_MODE 0x22
-#define HSCX_CMDR 0x21
-#define HSCX_EXIR 0x24
-#define HSCX_XAD1 0x24
-#define HSCX_XAD2 0x25
-#define HSCX_RAH2 0x27
-#define HSCX_RSTA 0x27
-#define HSCX_TIMR 0x23
-#define HSCX_STAR 0x21
-#define HSCX_RBCL 0x25
-#define HSCX_XBCH 0x2d
-#define HSCX_VSTR 0x2e
-#define HSCX_RLCR 0x2e
-#define HSCX_MASK 0x20
-
-static inline void
-waitforCEC_0(byte * base, byte hscx)
-{
- long to = 10;
-
- while ((readhscx_0(base, hscx, HSCX_STAR) & 0x04) && to) {
- udelay(5);
- to--;
- }
- if (!to)
- printk(KERN_WARNING "waitforCEC timeout\n");
-}
-
-static inline void
-waitforCEC_3(int iobase, byte hscx)
-{
- long to = 10;
-
- while ((readhscx_3(iobase, hscx, HSCX_STAR) & 0x04) && to) {
- udelay(5);
- to--;
- }
- if (!to)
- printk(KERN_WARNING "waitforCEC timeout\n");
-}
-
-static inline void
-waitforXFW_0(byte * base, byte hscx)
-{
- long to = 20;
-
- while ((!(readhscx_0(base, hscx, HSCX_STAR) & 0x44)==0x40) && to) {
- udelay(5);
- to--;
- }
- if (!to)
- printk(KERN_WARNING "waitforXFW timeout\n");
-}
-
-static inline void
-waitforXFW_3(int iobase, byte hscx)
-{
- long to = 20;
-
- while ((!(readhscx_3(iobase, hscx, HSCX_STAR) & 0x44)==0x40) && to) {
- udelay(5);
- to--;
- }
- if (!to)
- printk(KERN_WARNING "waitforXFW timeout\n");
-}
-
-static inline void
-writehscxCMDR_0(byte * base, byte hscx, byte data)
-{
- long flags;
-
- save_flags(flags);
- cli();
- waitforCEC_0(base, hscx);
- writehscx_0(base, hscx, HSCX_CMDR, data);
- restore_flags(flags);
-}
-
-static inline void
-writehscxCMDR_3(int iobase, byte hscx, byte data)
-{
- long flags;
-
- save_flags(flags);
- cli();
- waitforCEC_3(iobase, hscx);
- writehscx_3(iobase, hscx, HSCX_CMDR, data);
- restore_flags(flags);
-}
-
-#define WRITEHSCX_CMDR(mbase,ibase,hscx,data) \
- ((mbase)?writehscxCMDR_0(mbase,hscx,data):writehscxCMDR_3(ibase,hscx,data))
-
-/*
- * fast interrupt here
- */
-
-#define ISAC_RCVBUFREADY 0
-#define ISAC_XMTBUFREADY 1
-#define ISAC_PHCHANGE 2
-
-#define HSCX_RCVBUFREADY 0
-#define HSCX_XMTBUFREADY 1
-
-void
-teles_hscxreport(struct IsdnCardState *sp, int hscx)
-{
- printk(KERN_DEBUG "HSCX %d\n", hscx);
- if (sp->membase) {
- printk(KERN_DEBUG " ISTA %x\n", readhscx_0(sp->membase,
- hscx, HSCX_ISTA));
- printk(KERN_DEBUG " STAR %x\n", readhscx_0(sp->membase,
- hscx, HSCX_STAR));
- printk(KERN_DEBUG " EXIR %x\n", readhscx_0(sp->membase,
- hscx, HSCX_EXIR));
- } else {
- printk(KERN_DEBUG " ISTA %x\n", readhscx_3(sp->iobase,
- hscx, HSCX_ISTA));
- printk(KERN_DEBUG " STAR %x\n", readhscx_3(sp->iobase,
- hscx, HSCX_STAR));
- printk(KERN_DEBUG " EXIR %x\n", readhscx_3(sp->iobase,
- hscx, HSCX_EXIR));
- }
-}
-
-void
-teles_report(struct IsdnCardState *sp)
-{
- printk(KERN_DEBUG "ISAC\n");
- if (sp->membase) {
- printk(KERN_DEBUG " ISTA %x\n", readisac_0(sp->membase,
- ISAC_ISTA));
- printk(KERN_DEBUG " STAR %x\n", readisac_0(sp->membase,
- ISAC_STAR));
- printk(KERN_DEBUG " EXIR %x\n", readisac_0(sp->membase,
- ISAC_EXIR));
- } else {
- printk(KERN_DEBUG " ISTA %x\n", readisac_3(sp->iobase,
- ISAC_ISTA));
- printk(KERN_DEBUG " STAR %x\n", readisac_3(sp->iobase,
- ISAC_STAR));
- printk(KERN_DEBUG " EXIR %x\n", readisac_3(sp->iobase,
- ISAC_EXIR));
- }
- teles_hscxreport(sp, 0);
- teles_hscxreport(sp, 1);
-}
-
-/*
- * HSCX stuff goes here
- */
-
-static void
-hscx_sched_event(struct HscxState *hsp, int event)
-{
- hsp->event |= 1 << event;
- queue_task_irq_off(&hsp->tqueue, &tq_immediate);
- mark_bh(IMMEDIATE_BH);
-}
-
-static void
-hscx_empty_fifo(struct HscxState *hsp, int count)
-{
- byte *ptr;
- struct BufHeader *ibh = hsp->rcvibh;
-
- if (hsp->sp->debug)
- printk(KERN_DEBUG "hscx_empty_fifo\n");
-
- if (hsp->rcvptr + count > BUFFER_SIZE(HSCX_RBUF_ORDER,
- HSCX_RBUF_BPPS)) {
- printk(KERN_WARNING
- "hscx_empty_fifo: incoming packet too large\n");
- WRITEHSCX_CMDR(hsp->membase, hsp->iobase, hsp->hscx, 0x80);
- return;
- }
- ptr = DATAPTR(ibh);
- ptr += hsp->rcvptr;
-
- hsp->rcvptr += count;
- if (hsp->membase) {
- while (count--)
- *ptr++ = readhscx_0(hsp->membase, hsp->hscx, 0x0);
- writehscxCMDR_0(hsp->membase, hsp->hscx, 0x80);
- } else {
- readhscx_s(hsp->iobase, hsp->hscx, 0x3e, ptr, count);
- writehscxCMDR_3(hsp->iobase, hsp->hscx, 0x80);
- }
-}
-
-static void
-hscx_fill_fifo(struct HscxState *hsp)
-{
- struct BufHeader *ibh;
- int more, count;
- byte *ptr;
-
- if (hsp->sp->debug)
- printk(KERN_DEBUG "hscx_fill_fifo\n");
-
- ibh = hsp->xmtibh;
- if (!ibh)
- return;
-
- count = ibh->datasize - hsp->sendptr;
- if (count <= 0)
- return;
-
- more = (hsp->mode == 1)?1:0;
- if (count > 32) {
- more = !0;
- count = 32;
- }
- ptr = DATAPTR(ibh);
- ptr += hsp->sendptr;
- hsp->sendptr += count;
-
-#ifdef BCHAN_VERBOSE
- {
- int i;
- printk(KERN_DEBUG "hscx_fill_fifo ");
- for (i = 0; i < count; i++)
- printk(" %2x", ptr[i]);
- printk("\n");
- }
-#endif
- if (hsp->membase) {
- waitforXFW_0(hsp->membase, hsp->hscx);
- while (count--)
- writehscx_0(hsp->membase, hsp->hscx, 0x0, *ptr++);
- writehscxCMDR_0(hsp->membase, hsp->hscx, more ? 0x8 : 0xa);
- } else {
- waitforXFW_3(hsp->iobase, hsp->hscx);
- writehscx_s(hsp->iobase, hsp->hscx, 0x3e, ptr, count);
- writehscxCMDR_3(hsp->iobase, hsp->hscx, more ? 0x8 : 0xa);
- }
-}
-
-static inline void
-hscx_interrupt(struct IsdnCardState *sp, byte val, byte hscx)
-{
- byte r;
- struct HscxState *hsp = sp->hs + hscx;
- int count, err;
-
- if (!hsp->init)
- return;
-
- if (val & 0x80) { /* RME */
-
- r = READHSCX(hsp->membase, sp->iobase, hsp->hscx, HSCX_RSTA);
- if ((r & 0xf0) != 0xa0) {
- if (!r & 0x80)
- printk(KERN_WARNING
- "Teles: HSCX invalid frame\n");
- if ((r & 0x40) && hsp->mode)
- printk(KERN_WARNING "Teles: HSCX RDO mode=%d\n",hsp->mode);
- if (!r & 0x20)
- printk(KERN_WARNING "Teles: HSCX CRC error\n");
- if (hsp->rcvibh)
- BufPoolRelease(hsp->rcvibh);
- hsp->rcvibh = NULL;
- WRITEHSCX_CMDR(hsp->membase, hsp->iobase, hsp->hscx,
- 0x80);
- goto afterRME;
- }
- if (!hsp->rcvibh)
- if (BufPoolGet(&hsp->rcvibh, &hsp->rbufpool,
- GFP_ATOMIC, (void *) 1, 1)) {
- printk(KERN_WARNING
- "HSCX RME out of buffers at %ld\n",
- jiffies);
- WRITEHSCX_CMDR(hsp->membase, hsp->iobase,
- hsp->hscx, 0x80);
- goto afterRME;
- } else
- hsp->rcvptr = 0;
-
- count = READHSCX(hsp->membase, sp->iobase, hsp->hscx,
- HSCX_RBCL) & 0x1f;
- if (count == 0)
- count = 32;
- hscx_empty_fifo(hsp, count);
- hsp->rcvibh->datasize = hsp->rcvptr - 1;
- BufQueueLink(&hsp->rq, hsp->rcvibh);
- hsp->rcvibh = NULL;
- hscx_sched_event(hsp, HSCX_RCVBUFREADY);
- }
- afterRME:
- if (val & 0x40) { /* RPF */
- if (!hsp->rcvibh) {
- if (hsp->mode == 1)
- err=BufPoolGet(&hsp->rcvibh, &hsp->smallpool,
- GFP_ATOMIC, (void *)1, 2);
- else
- err=BufPoolGet(&hsp->rcvibh, &hsp->rbufpool,
- GFP_ATOMIC, (void *)1, 2);
-
- if (err) {
- printk(KERN_WARNING
- "HSCX RPF out of buffers at %ld\n",
- jiffies);
- WRITEHSCX_CMDR(hsp->membase, hsp->iobase,
- hsp->hscx, 0x80);
- goto afterRPF;
- } else
- hsp->rcvptr = 0;
- }
-
- hscx_empty_fifo(hsp, 32);
- if (hsp->mode == 1) {
- /* receive audio data */
- hsp->rcvibh->datasize = hsp->rcvptr;
- BufQueueLink(&hsp->rq, hsp->rcvibh);
- hsp->rcvibh = NULL;
- hscx_sched_event(hsp, HSCX_RCVBUFREADY);
- }
-
- }
- afterRPF:
- if (val & 0x10) { /* XPR */
- if (hsp->xmtibh)
- if (hsp->xmtibh->datasize > hsp->sendptr) {
- hscx_fill_fifo(hsp);
- goto afterXPR;
- } else {
- if (hsp->releasebuf)
- BufPoolRelease(hsp->xmtibh);
- hsp->sendptr = 0;
- if (hsp->st->l4.l1writewakeup)
- hsp->st->l4.l1writewakeup(hsp->st);
- hsp->xmtibh = NULL;
- }
- if (!BufQueueUnlink(&hsp->xmtibh, &hsp->sq)) {
- hsp->releasebuf = !0;
- hscx_fill_fifo(hsp);
- } else
- hscx_sched_event(hsp, HSCX_XMTBUFREADY);
- }
- afterXPR:
-}
-
-/*
- * ISAC stuff goes here
- */
-
-static void
-isac_sched_event(struct IsdnCardState *sp, int event)
-{
- sp->event |= 1 << event;
- queue_task_irq_off(&sp->tqueue, &tq_immediate);
- mark_bh(IMMEDIATE_BH);
-}
-
-static void
-empty_fifo(struct IsdnCardState *sp, int count)
-{
- byte *ptr;
- struct BufHeader *ibh = sp->rcvibh;
-
- if (sp->debug)
- printk(KERN_DEBUG "empty_fifo\n");
-
- if (sp->rcvptr >= 3072) {
- printk(KERN_WARNING "empty_fifo rcvptr %d\n", sp->rcvptr);
- return;
- }
- ptr = DATAPTR(ibh);
- ptr += sp->rcvptr;
- sp->rcvptr += count;
-
- if (sp->membase) {
-#ifdef DCHAN_VERBOSE
- printk(KERN_DEBUG "empty_fifo ");
- while (count--) {
- *ptr = readisac_0(sp->membase, 0x0);
- printk("%2x ", *ptr);
- ptr++;
- }
- printk("\n");
-#else
- while (count--)
- *ptr++ = readisac_0(sp->membase, 0x0);
-#endif
- writeisac_0(sp->membase, ISAC_CMDR, 0x80);
- } else {
-#ifdef DCHAN_VERBOSE
- int i;
- printk(KERN_DEBUG "empty_fifo ");
- readisac_s(sp->iobase, 0x3e, ptr, count);
- for (i = 0; i < count; i++)
- printk("%2x ", ptr[i]);
- printk("\n");
-#else
- readisac_s(sp->iobase, 0x3e, ptr, count);
-#endif
- writeisac_3(sp->iobase, ISAC_CMDR, 0x80);
- }
-}
-
-static void
-fill_fifo(struct IsdnCardState *sp)
-{
- struct BufHeader *ibh;
- int count, more;
- byte *ptr;
-
- if (sp->debug)
- printk(KERN_DEBUG "fill_fifo\n");
-
- ibh = sp->xmtibh;
- if (!ibh)
- return;
-
- count = ibh->datasize - sp->sendptr;
- if (count <= 0)
- return;
- if (count >= 3072)
- return;
-
- more = 0;
- if (count > 32) {
- more = !0;
- count = 32;
- }
- ptr = DATAPTR(ibh);
- ptr += sp->sendptr;
- sp->sendptr += count;
-
- if (sp->membase) {
-#ifdef DCHAN_VERBOSE
- printk(KERN_DEBUG "fill_fifo ");
- while (count--) {
- writeisac_0(sp->membase, 0x0, *ptr);
- printk("%2x ", *ptr);
- ptr++;
- }
- printk("\n");
-#else
- while (count--)
- writeisac_0(sp->membase, 0x0, *ptr++);
-#endif
- writeisac_0(sp->membase, ISAC_CMDR, more ? 0x8 : 0xa);
- } else {
-#ifdef DCHAN_VERBOSE
- int i;
- writeisac_s(sp->iobase, 0x3e, ptr, count);
- printk(KERN_DEBUG "fill_fifo ");
- for (i = 0; i < count; i++)
- printk("%2x ", ptr[i]);
- printk("\n");
-#else
- writeisac_s(sp->iobase, 0x3e, ptr, count);
-#endif
- writeisac_3(sp->iobase, ISAC_CMDR, more ? 0x8 : 0xa);
- }
-}
-
-static int
-act_wanted(struct IsdnCardState *sp)
-{
- struct PStack *st;
-
- st = sp->stlist;
- while (st)
- if (st->l1.act_state)
- return (!0);
- else
- st = st->next;
- return (0);
-}
-
-static void
-ph_command(struct IsdnCardState *sp, unsigned int command)
-{
- printk(KERN_DEBUG "ph_command %d\n", command);
- WRITEISAC(sp->membase, sp->iobase, ISAC_CIX0, (command << 2) | 3);
-}
-
-static void
-isac_new_ph(struct IsdnCardState *sp)
-{
- int enq;
-
- enq = act_wanted(sp);
-
- switch (sp->ph_state) {
- case (0):
- case (6):
- if (enq)
- ph_command(sp, 0);
- else
- ph_command(sp, 15);
- break;
- case (7):
- if (enq)
- ph_command(sp, 9);
- break;
- case (12):
- ph_command(sp, 8);
- sp->ph_active = 5;
- isac_sched_event(sp, ISAC_PHCHANGE);
- if (!sp->xmtibh)
- if (!BufQueueUnlink(&sp->xmtibh, &sp->sq))
- sp->sendptr = 0;
- if (sp->xmtibh)
- fill_fifo(sp);
- break;
- case (13):
- ph_command(sp, 9);
- sp->ph_active = 5;
- isac_sched_event(sp, ISAC_PHCHANGE);
- if (!sp->xmtibh)
- if (!BufQueueUnlink(&sp->xmtibh, &sp->sq))
- sp->sendptr = 0;
- if (sp->xmtibh)
- fill_fifo(sp);
- break;
- case (4):
- case (8):
- break;
- default:
- sp->ph_active = 0;
- break;
- }
-}
-
-static void
-teles_interrupt(int intno, void *dev_id, struct pt_regs *regs)
-{
- byte val, r, exval;
- struct IsdnCardState *sp;
- unsigned int count;
- struct HscxState *hsp;
-
- sp = (struct IsdnCardState *) irq2dev_map[intno];
-
- if (!sp) {
- printk(KERN_WARNING "Teles: Spurious interrupt!\n");
- return;
- }
- val = READHSCX(sp->membase, sp->iobase, 1, HSCX_ISTA);
-
- if (val & 0x01) {
- hsp = sp->hs + 1;
- exval = READHSCX(sp->membase, sp->iobase, 1, HSCX_EXIR);
- if (exval == 0x40) {
- if (hsp->mode == 1)
- hscx_fill_fifo(hsp);
- else {
- /* Here we lost an TX interrupt, so
- * restart transmitting the whole frame.
- */
- hsp->sendptr = 0;
- WRITEHSCX_CMDR(hsp->membase, hsp->iobase,
- hsp->hscx, 0x01);
- printk(KERN_DEBUG "HSCX B EXIR %x\n", exval);
- }
- } else
- printk(KERN_WARNING "HSCX B EXIR %x\n", exval);
- }
- if (val & 0xf8) {
- if (sp->debug)
- printk(KERN_DEBUG "HSCX B interrupt %x\n", val);
- hscx_interrupt(sp, val, 1);
- }
- if (val & 0x02) {
- hsp = sp->hs;
- exval = READHSCX(sp->membase, sp->iobase, 0, HSCX_EXIR);
- if (exval == 0x40) {
- if (hsp->mode == 1)
- hscx_fill_fifo(hsp);
- else {
- /* Here we lost an TX interrupt, so
- * restart transmitting the whole frame.
- */
- hsp->sendptr = 0;
- WRITEHSCX_CMDR(hsp->membase, hsp->iobase,
- hsp->hscx, 0x01);
- printk(KERN_DEBUG "HSCX A EXIR %x\n", exval);
- }
- } else
- printk(KERN_WARNING "HSCX A EXIR %x\n", exval);
- }
- if (val & 0x04) {
- val = READHSCX(sp->membase, sp->iobase, 0, HSCX_ISTA);
- if (sp->debug)
- printk(KERN_DEBUG "HSCX A interrupt %x\n",
- val);
- hscx_interrupt(sp, val, 0);
- }
-
- val = READISAC(sp->membase, sp->iobase, ISAC_ISTA);
-
- if (sp->debug)
- printk(KERN_DEBUG "ISAC interrupt %x\n", val);
-
- if (val & 0x80) { /* RME */
-
- r = READISAC(sp->membase, sp->iobase, ISAC_RSTA);
- if ((r & 0x70) != 0x20) {
- if (r & 0x40)
- printk(KERN_WARNING "Teles: ISAC RDO\n");
- if (!r & 0x20)
- printk(KERN_WARNING "Teles: ISAC CRC error\n");
- if (sp->rcvibh)
- BufPoolRelease(sp->rcvibh);
- sp->rcvibh = NULL;
- WRITEISAC(sp->membase, sp->iobase, ISAC_CMDR, 0x80);
- goto afterRME;
- }
- if (!sp->rcvibh)
- if (BufPoolGet(&(sp->rcvibh), &(sp->rbufpool),
- GFP_ATOMIC,
- (void *) 1, 3)) {
- printk(KERN_WARNING
- "ISAC RME out of buffers!\n");
- WRITEISAC(sp->membase, sp->iobase,
- ISAC_CMDR, 0x80);
- goto afterRME;
- } else
- sp->rcvptr = 0;
-
- count = READISAC(sp->membase, sp->iobase, ISAC_RBCL) & 0x1f;
- if (count == 0)
- count = 32;
- empty_fifo(sp, count);
- sp->rcvibh->datasize = sp->rcvptr;
- BufQueueLink(&(sp->rq), sp->rcvibh);
- sp->rcvibh = NULL;
- isac_sched_event(sp, ISAC_RCVBUFREADY);
- }
- afterRME:
- if (val & 0x40) { /* RPF */
- if (!sp->rcvibh)
- if (BufPoolGet(&(sp->rcvibh), &(sp->rbufpool),
- GFP_ATOMIC,
- (void *) 1, 4)) {
- printk(KERN_WARNING
- "ISAC RME out of buffers!\n");
- WRITEISAC(sp->membase, sp->iobase,
- ISAC_CMDR, 0x80);
- goto afterRPF;
- } else
- sp->rcvptr = 0;
- empty_fifo(sp, 32);
- }
- afterRPF:
- if (val & 0x20) {
- }
- if (val & 0x10) { /* XPR */
- if (sp->xmtibh)
- if (sp->xmtibh->datasize > sp->sendptr) {
- fill_fifo(sp);
- goto afterXPR;
- } else {
- if (sp->releasebuf)
- BufPoolRelease(sp->xmtibh);
- sp->xmtibh = NULL;
- sp->sendptr = 0;
- }
- if (!BufQueueUnlink(&sp->xmtibh, &sp->sq)) {
- sp->releasebuf = !0;
- fill_fifo(sp);
- } else
- isac_sched_event(sp, ISAC_XMTBUFREADY);
- }
- afterXPR:
- if (val & 0x04) { /* CISQ */
- sp->ph_state = (READISAC(sp->membase, sp->iobase, ISAC_CIX0)
- >> 2) & 0xf;
- printk(KERN_DEBUG "l1state %d\n", sp->ph_state);
- isac_new_ph(sp);
- }
- if (sp->membase) {
- writeisac_0(sp->membase, ISAC_MASK, 0xFF);
- writehscx_0(sp->membase, 0, HSCX_MASK, 0xFF);
- writehscx_0(sp->membase, 1, HSCX_MASK, 0xFF);
- writeisac_0(sp->membase, ISAC_MASK, 0x0);
- writehscx_0(sp->membase, 0, HSCX_MASK, 0x0);
- writehscx_0(sp->membase, 1, HSCX_MASK, 0x0);
- } else {
- writeisac_3(sp->iobase, ISAC_MASK, 0xFF);
- writehscx_3(sp->iobase, 0, HSCX_MASK, 0xFF);
- writehscx_3(sp->iobase, 1, HSCX_MASK, 0xFF);
- writeisac_3(sp->iobase, ISAC_MASK, 0x0);
- writehscx_3(sp->iobase, 0, HSCX_MASK, 0x0);
- writehscx_3(sp->iobase, 1, HSCX_MASK, 0x0);
- }
-}
-
-/*
- * soft interrupt
- */
-
-static void
-act_ivated(struct IsdnCardState *sp)
-{
- struct PStack *st;
-
- st = sp->stlist;
- while (st) {
- if (st->l1.act_state == 1) {
- st->l1.act_state = 2;
- st->l1.l1man(st, PH_ACTIVATE, NULL);
- }
- st = st->next;
- }
-}
-
-static void
-process_new_ph(struct IsdnCardState *sp)
-{
- if (sp->ph_active == 5)
- act_ivated(sp);
-}
-
-static void
-process_xmt(struct IsdnCardState *sp)
-{
- struct PStack *stptr;
-
- if (sp->xmtibh)
- return;
-
- stptr = sp->stlist;
- while (stptr != NULL)
- if (stptr->l1.requestpull) {
- stptr->l1.requestpull = 0;
- stptr->l1.l1l2(stptr, PH_PULL_ACK, NULL);
- break;
- } else
- stptr = stptr->next;
-}
-
-static void
-process_rcv(struct IsdnCardState *sp)
-{
- struct BufHeader *ibh, *cibh;
- struct PStack *stptr;
- byte *ptr;
- int found, broadc;
- char tmp[64];
-
- while (!BufQueueUnlink(&ibh, &sp->rq)) {
- stptr = sp->stlist;
- ptr = DATAPTR(ibh);
- broadc = (ptr[1] >> 1) == 127;
-
- if (broadc && sp->dlogflag && (!(ptr[0] >> 2)))
- dlogframe(sp, ptr + 3, ibh->datasize - 3,
- "Q.931 frame network->user broadcast");
-
- if (broadc) {
- while (stptr != NULL) {
- if ((ptr[0] >> 2) == stptr->l2.sap)
- if (!BufPoolGet(&cibh, &sp->rbufpool, GFP_ATOMIC,
- (void *) 1, 5)) {
- memcpy(DATAPTR(cibh), DATAPTR(ibh), ibh->datasize);
- cibh->datasize = ibh->datasize;
- stptr->l1.l1l2(stptr, PH_DATA, cibh);
- } else
- printk(KERN_WARNING "isdn broadcast buffer shortage\n");
- stptr = stptr->next;
- }
- BufPoolRelease(ibh);
- } else {
- found = 0;
- while (stptr != NULL)
- if (((ptr[0] >> 2) == stptr->l2.sap) &&
- ((ptr[1] >> 1) == stptr->l2.tei)) {
- stptr->l1.l1l2(stptr, PH_DATA, ibh);
- found = !0;
- break;
- } else
- stptr = stptr->next;
- if (!found) {
- /* BD 10.10.95
- * Print out D-Channel msg not processed
- * by isdn4linux
- */
-
- if ((!(ptr[0] >> 2)) && (!(ptr[2] & 0x01))) {
- sprintf(tmp, "Q.931 frame network->user with tei %d (not for us)", ptr[1] >> 1);
- dlogframe(sp, ptr + 4, ibh->datasize - 4, tmp);
- }
- BufPoolRelease(ibh);
- }
- }
-
- }
-
-}
-
-static void
-isac_bh(struct IsdnCardState *sp)
-{
- if (!sp)
- return;
-
- if (clear_bit(ISAC_PHCHANGE, &sp->event))
- process_new_ph(sp);
- if (clear_bit(ISAC_RCVBUFREADY, &sp->event))
- process_rcv(sp);
- if (clear_bit(ISAC_XMTBUFREADY, &sp->event))
- process_xmt(sp);
-}
-
-
-static void
-hscx_process_xmt(struct HscxState *hsp)
-{
- struct PStack *st = hsp->st;
-
- if (hsp->xmtibh)
- return;
-
- if (st->l1.requestpull) {
- st->l1.requestpull = 0;
- st->l1.l1l2(st, PH_PULL_ACK, NULL);
- }
- if (!hsp->active)
- if ((!hsp->xmtibh) && (!hsp->sq.head))
- modehscx(hsp, 0, 0);
-}
-
-static void
-hscx_process_rcv(struct HscxState *hsp)
-{
- struct BufHeader *ibh;
-
-#ifdef DEBUG_MAGIC
- if (hsp->magic != 301270) {
- printk(KERN_DEBUG "hscx_process_rcv magic not 301270\n");
- return;
- }
-#endif
- while (!BufQueueUnlink(&ibh, &hsp->rq)) {
- hsp->st->l1.l1l2(hsp->st, PH_DATA, ibh);
- }
-}
-
-static void
-hscx_bh(struct HscxState *hsp)
-{
-
- if (!hsp)
- return;
-
- if (clear_bit(HSCX_RCVBUFREADY, &hsp->event))
- hscx_process_rcv(hsp);
- if (clear_bit(HSCX_XMTBUFREADY, &hsp->event))
- hscx_process_xmt(hsp);
-
-}
-
-/*
- * interrupt stuff ends here
- */
-
-static void
-restart_ph(struct IsdnCardState *sp)
-{
- switch (sp->ph_active) {
- case (0):
- if (sp->ph_state == 6)
- ph_command(sp, 0);
- else
- ph_command(sp, 1);
- sp->ph_active = 1;
- break;
- }
-}
-
-static void
-initisac(byte * cardmem, int iobase)
-{
- if (cardmem) {
- writeisac_0(cardmem, ISAC_MASK, 0xff);
- writeisac_0(cardmem, ISAC_ADF2, 0x0);
- writeisac_0(cardmem, ISAC_SPCR, 0xa);
- writeisac_0(cardmem, ISAC_ADF1, 0x2);
- writeisac_0(cardmem, ISAC_STCR, 0x70);
- writeisac_0(cardmem, ISAC_MODE, 0xc9);
- writeisac_0(cardmem, ISAC_CMDR, 0x41);
- writeisac_0(cardmem, ISAC_CIX0, (1 << 2) | 3);
- } else {
- writeisac_3(iobase, ISAC_MASK, 0xff);
- writeisac_3(iobase, ISAC_ADF2, 0x80);
- writeisac_3(iobase, ISAC_SQXR, 0x2f);
- writeisac_3(iobase, ISAC_SPCR, 0x00);
- writeisac_3(iobase, ISAC_ADF1, 0x02);
- writeisac_3(iobase, ISAC_STCR, 0x70);
- writeisac_3(iobase, ISAC_MODE, 0xc9);
- writeisac_3(iobase, ISAC_TIMR, 0x00);
- writeisac_3(iobase, ISAC_ADF1, 0x00);
- writeisac_3(iobase, ISAC_CMDR, 0x41);
- writeisac_3(iobase, ISAC_CIX0, (1 << 2) | 3);
- }
-}
-
-static int
-checkcard(int cardnr)
-{
- int timout;
- byte cfval, val;
- struct IsdnCard *card = cards + cardnr;
-
- if (card->membase)
- if ((unsigned long)card->membase < 0x10000) {
- (unsigned long)card->membase <<= 4;
- printk(KERN_INFO
- "Teles membase configured DOSish, assuming 0x%lx\n",
- (unsigned long)card->membase);
- }
- if (!card->iobase) {
- if (card->membase) {
- printk(KERN_NOTICE
- "Teles 8 assumed, mem: %lx irq: %d proto: %s\n",
- (long) card->membase, card->interrupt,
- (card->protocol == ISDN_PTYPE_1TR6) ?
- "1TR6" : "EDSS1");
- printk(KERN_INFO "HSCX version A:%x B:%x\n",
- readhscx_0(card->membase, 0, HSCX_VSTR) & 0xf,
- readhscx_0(card->membase, 1, HSCX_VSTR) & 0xf);
- }
- } else {
- switch (card->iobase) {
- case 0x180:
- case 0x280:
- case 0x380:
- card->iobase |= 0xc00;
- break;
- }
- if (card->membase) { /* 16.0 */
- if (check_region(card->iobase, 8)) {
- printk(KERN_WARNING
- "teles: ports %x-%x already in use\n",
- card->iobase,
- card->iobase + 8 );
- return -1;
- }
- } else { /* 16.3 */
- if (check_region(card->iobase, 16)) {
- printk(KERN_WARNING
- "teles: 16.3 ports %x-%x already in use\n",
- card->iobase,
- card->iobase + 16 );
- return -1;
- }
- if (check_region((card->iobase - 0xc00) , 32)) {
- printk(KERN_WARNING
- "teles: 16.3 ports %x-%x already in use\n",
- card->iobase - 0xc00,
- card->iobase - 0xc00 + 32);
- return -1;
- }
- if (check_region((card->iobase - 0x800) , 32)) {
- printk(KERN_WARNING
- "teles: 16.3 ports %x-%x already in use\n",
- card->iobase - 0x800,
- card->iobase - 0x800 + 32);
- return -1;
- }
- if (check_region((card->iobase - 0x400) , 32)) {
- printk(KERN_WARNING
- "teles: 16.3 ports %x-%x already in use\n",
- card->iobase - 0x400,
- card->iobase - 0x400 + 32);
- return -1;
- }
- }
- switch (card->interrupt) {
- case 2:
- cfval = 0x00;
- break;
- case 3:
- cfval = 0x02;
- break;
- case 4:
- cfval = 0x04;
- break;
- case 5:
- cfval = 0x06;
- break;
- case 10:
- cfval = 0x08;
- break;
- case 11:
- cfval = 0x0A;
- break;
- case 12:
- cfval = 0x0C;
- break;
- case 15:
- cfval = 0x0E;
- break;
- default:
- cfval = 0x00;
- break;
- }
- if (card->membase) {
- cfval |= (((unsigned int) card->membase >> 9) & 0xF0);
- }
- if (bytein(card->iobase + 0) != 0x51) {
- printk(KERN_INFO "XXX Byte at %x is %x\n",
- card->iobase + 0,
- bytein(card->iobase + 0));
- return -2;
- }
- if (bytein(card->iobase + 1) != 0x93) {
- printk(KERN_INFO "XXX Byte at %x is %x\n",
- card->iobase + 1,
- bytein(card->iobase + 1));
- return -2;
- }
- val = bytein(card->iobase + 2); /* 0x1e=without AB
- * 0x1f=with AB
- * 0x1c 16.3 ???
- */
- if (val != 0x1c && val != 0x1e && val != 0x1f) {
- printk(KERN_INFO "XXX Byte at %x is %x\n",
- card->iobase + 2,
- bytein(card->iobase + 2));
- return -2;
- }
- if (card->membase) { /* 16.0 */
- request_region(card->iobase, 8, "teles 16.0");
- } else {
- request_region(card->iobase, 16, "teles 16.3");
- request_region(card->iobase - 0xC00, 32, "teles HSCX0");
- request_region(card->iobase - 0x800, 32, "teles HSCX1");
- request_region(card->iobase - 0x400, 32, "teles ISAC");
- }
- cli();
- timout = jiffies + (HZ / 10) + 1;
- byteout(card->iobase + 4, cfval);
- sti();
- while (jiffies <= timout);
-
- cli();
- timout = jiffies + (HZ / 10) + 1;
- byteout(card->iobase + 4, cfval | 1);
- sti();
- while (jiffies <= timout);
-
- if (card->membase)
- printk(KERN_NOTICE
- "Teles 16.0 found, io: %x mem: %lx irq: %d proto: %s\n",
- card->iobase, (long) card->membase,
- card->interrupt,
- (card->protocol == ISDN_PTYPE_1TR6) ?
- "1TR6" : "EDSS1");
- else
- printk(KERN_NOTICE
- "Teles 16.3 found, io: %x irq: %d proto: %s\n",
- card->iobase, card->interrupt,
- (card->protocol == ISDN_PTYPE_1TR6) ?
- "1TR6" : "EDSS1");
- printk(KERN_INFO "HSCX version A:%x B:%x\n",
- READHSCX(card->membase, card->iobase, 0,
- HSCX_VSTR) & 0xf,
- READHSCX(card->membase, card->iobase, 1,
- HSCX_VSTR) & 0xf);
-
- }
- if (card->membase) {
- cli();
- timout = jiffies + (HZ / 5) + 1;
- writeb(0, card->membase + 0x80);
- sti();
- while (jiffies <= timout);
-
- cli();
- writeb(1, card->membase + 0x80);
- timout = jiffies + (HZ / 5) + 1;
- sti();
- while (jiffies <= timout);
- }
- return (0);
-}
-
-void
-modehscx(struct HscxState *hs, int mode,
- int ichan)
-{
- struct IsdnCardState *sp = hs->sp;
- int hscx = hs->hscx;
-
- printk(KERN_DEBUG "modehscx hscx %d mode %d ichan %d\n",
- hscx, mode, ichan);
-
- hs->mode = mode;
- if (sp->membase) {
- /* What's that ??? KKeil */
- if (hscx == 0)
- ichan = 1 - ichan; /* raar maar waar... */
- writehscx_0(sp->membase, hscx, HSCX_CCR1, 0x85);
- writehscx_0(sp->membase, hscx, HSCX_XAD1, 0xFF);
- writehscx_0(sp->membase, hscx, HSCX_XAD2, 0xFF);
- writehscx_0(sp->membase, hscx, HSCX_RAH2, 0xFF);
- writehscx_0(sp->membase, hscx, HSCX_XBCH, 0x0);
-
- switch (mode) {
- case (0):
- writehscx_0(sp->membase, hscx, HSCX_CCR2, 0x30);
- writehscx_0(sp->membase, hscx, HSCX_TSAX, 0xff);
- writehscx_0(sp->membase, hscx, HSCX_TSAR, 0xff);
- writehscx_0(sp->membase, hscx, HSCX_XCCR, 7);
- writehscx_0(sp->membase, hscx, HSCX_RCCR, 7);
- writehscx_0(sp->membase, hscx, HSCX_MODE, 0x84);
- break;
- case (1):
- if (ichan == 0) {
- writehscx_0(sp->membase, hscx, HSCX_CCR2, 0x30);
- writehscx_0(sp->membase, hscx, HSCX_TSAX, 0x7);
- writehscx_0(sp->membase, hscx, HSCX_TSAR, 0x7);
- writehscx_0(sp->membase, hscx, HSCX_XCCR, 7);
- writehscx_0(sp->membase, hscx, HSCX_RCCR, 7);
- } else {
- writehscx_0(sp->membase, hscx, HSCX_CCR2, 0x30);
- writehscx_0(sp->membase, hscx, HSCX_TSAX, 0x3);
- writehscx_0(sp->membase, hscx, HSCX_TSAR, 0x3);
- writehscx_0(sp->membase, hscx, HSCX_XCCR, 7);
- writehscx_0(sp->membase, hscx, HSCX_RCCR, 7);
- }
- writehscx_0(sp->membase, hscx, HSCX_MODE, 0xe4);
- writehscx_0(sp->membase, hscx, HSCX_CMDR, 0x41);
- break;
- case (2):
- if (ichan == 0) {
- writehscx_0(sp->membase, hscx, HSCX_CCR2, 0x30);
- writehscx_0(sp->membase, hscx, HSCX_TSAX, 0x7);
- writehscx_0(sp->membase, hscx, HSCX_TSAR, 0x7);
- writehscx_0(sp->membase, hscx, HSCX_XCCR, 7);
- writehscx_0(sp->membase, hscx, HSCX_RCCR, 7);
- } else {
- writehscx_0(sp->membase, hscx, HSCX_CCR2, 0x30);
- writehscx_0(sp->membase, hscx, HSCX_TSAX, 0x3);
- writehscx_0(sp->membase, hscx, HSCX_TSAR, 0x3);
- writehscx_0(sp->membase, hscx, HSCX_XCCR, 7);
- writehscx_0(sp->membase, hscx, HSCX_RCCR, 7);
- }
- writehscx_0(sp->membase, hscx, HSCX_MODE, 0x8c);
- writehscx_0(sp->membase, hscx, HSCX_CMDR, 0x41);
- break;
- }
- writehscx_0(sp->membase, hscx, HSCX_ISTA, 0x00);
- } else {
- writehscx_3(sp->iobase, hscx, HSCX_CCR1, 0x85);
- writehscx_3(sp->iobase, hscx, HSCX_XAD1, 0xFF);
- writehscx_3(sp->iobase, hscx, HSCX_XAD2, 0xFF);
- writehscx_3(sp->iobase, hscx, HSCX_RAH2, 0xFF);
- writehscx_3(sp->iobase, hscx, HSCX_XBCH, 0x00);
- writehscx_3(sp->iobase, hscx, HSCX_RLCR, 0x00);
-
- switch (mode) {
- case (0):
- writehscx_3(sp->iobase, hscx, HSCX_CCR2, 0x30);
- writehscx_3(sp->iobase, hscx, HSCX_TSAX, 0xff);
- writehscx_3(sp->iobase, hscx, HSCX_TSAR, 0xff);
- writehscx_3(sp->iobase, hscx, HSCX_XCCR, 7);
- writehscx_3(sp->iobase, hscx, HSCX_RCCR, 7);
- writehscx_3(sp->iobase, hscx, HSCX_MODE, 0x84);
- break;
- case (1):
- if (ichan == 0) {
- writehscx_3(sp->iobase, hscx, HSCX_CCR2, 0x30);
- writehscx_3(sp->iobase, hscx, HSCX_TSAX, 0x2f);
- writehscx_3(sp->iobase, hscx, HSCX_TSAR, 0x2f);
- writehscx_3(sp->iobase, hscx, HSCX_XCCR, 7);
- writehscx_3(sp->iobase, hscx, HSCX_RCCR, 7);
- } else {
- writehscx_3(sp->iobase, hscx, HSCX_CCR2, 0x30);
- writehscx_3(sp->iobase, hscx, HSCX_TSAX, 0x3);
- writehscx_3(sp->iobase, hscx, HSCX_TSAR, 0x3);
- writehscx_3(sp->iobase, hscx, HSCX_XCCR, 7);
- writehscx_3(sp->iobase, hscx, HSCX_RCCR, 7);
- }
- writehscx_3(sp->iobase, hscx, HSCX_MODE, 0xe4);
- writehscx_3(sp->iobase, hscx, HSCX_CMDR, 0x41);
- break;
- case (2):
- if (ichan == 0) {
- writehscx_3(sp->iobase, hscx, HSCX_CCR2, 0x30);
- writehscx_3(sp->iobase, hscx, HSCX_TSAX, 0x2f);
- writehscx_3(sp->iobase, hscx, HSCX_TSAR, 0x2f);
- writehscx_3(sp->iobase, hscx, HSCX_XCCR, 7);
- writehscx_3(sp->iobase, hscx, HSCX_RCCR, 7);
- } else {
- writehscx_3(sp->iobase, hscx, HSCX_CCR2, 0x30);
- writehscx_3(sp->iobase, hscx, HSCX_TSAX, 0x3);
- writehscx_3(sp->iobase, hscx, HSCX_TSAR, 0x3);
- writehscx_3(sp->iobase, hscx, HSCX_XCCR, 7);
- writehscx_3(sp->iobase, hscx, HSCX_RCCR, 7);
- }
- writehscx_3(sp->iobase, hscx, HSCX_MODE, 0x8c);
- writehscx_3(sp->iobase, hscx, HSCX_CMDR, 0x41);
- break;
- }
- writehscx_3(sp->iobase, hscx, HSCX_ISTA, 0x00);
- }
-}
-
-void
-teles_addlist(struct IsdnCardState *sp,
- struct PStack *st)
-{
- st->next = sp->stlist;
- sp->stlist = st;
-}
-
-void
-teles_rmlist(struct IsdnCardState *sp,
- struct PStack *st)
-{
- struct PStack *p;
-
- if (sp->stlist == st)
- sp->stlist = st->next;
- else {
- p = sp->stlist;
- while (p)
- if (p->next == st) {
- p->next = st->next;
- return;
- } else
- p = p->next;
- }
-}
-
-
-static void
-teles_l2l1(struct PStack *st, int pr,
- struct BufHeader *ibh)
-{
- struct IsdnCardState *sp = (struct IsdnCardState *)
- st->l1.hardware;
-
-
- switch (pr) {
- case (PH_DATA):
- if (sp->xmtibh)
- BufQueueLink(&sp->sq, ibh);
- else {
- sp->xmtibh = ibh;
- sp->sendptr = 0;
- sp->releasebuf = !0;
- fill_fifo(sp);
- }
- break;
- case (PH_DATA_PULLED):
- if (sp->xmtibh) {
- printk(KERN_DEBUG "teles_l2l1: this shouldn't happen\n");
- break;
- }
- sp->xmtibh = ibh;
- sp->sendptr = 0;
- sp->releasebuf = 0;
- fill_fifo(sp);
- break;
- case (PH_REQUEST_PULL):
- if (!sp->xmtibh) {
- st->l1.requestpull = 0;
- st->l1.l1l2(st, PH_PULL_ACK, NULL);
- } else
- st->l1.requestpull = !0;
- break;
- }
-}
-
-static void
-check_ph_act(struct IsdnCardState *sp)
-{
- struct PStack *st = sp->stlist;
-
- while (st) {
- if (st->l1.act_state)
- return;
- st = st->next;
- }
- sp->ph_active = 0;
-}
-
-static void
-teles_manl1(struct PStack *st, int pr,
- void *arg)
-{
- struct IsdnCardState *sp = (struct IsdnCardState *)
- st->l1.hardware;
- long flags;
-
- switch (pr) {
- case (PH_ACTIVATE):
- save_flags(flags);
- cli();
- if (sp->ph_active == 5) {
- st->l1.act_state = 2;
- restore_flags(flags);
- st->l1.l1man(st, PH_ACTIVATE, NULL);
- } else {
- st->l1.act_state = 1;
- if (sp->ph_active == 0)
- restart_ph(sp);
- restore_flags(flags);
- }
- break;
- case (PH_DEACTIVATE):
- st->l1.act_state = 0;
- check_ph_act(sp);
- break;
- }
-}
-
-static void
-teles_l2l1discardq(struct PStack *st, int pr,
- void *heldby, int releasetoo)
-{
- struct IsdnCardState *sp = (struct IsdnCardState *) st->l1.hardware;
-
-#ifdef DEBUG_MAGIC
- if (sp->magic != 301271) {
- printk(KERN_DEBUG "isac_discardq magic not 301271\n");
- return;
- }
-#endif
-
- BufQueueDiscard(&sp->sq, pr, heldby, releasetoo);
-}
-
-void
-setstack_teles(struct PStack *st, struct IsdnCardState *sp)
-{
- st->l1.hardware = sp;
- st->l1.sbufpool = &(sp->sbufpool);
- st->l1.rbufpool = &(sp->rbufpool);
- st->l1.smallpool = &(sp->smallpool);
- st->protocol = sp->teistack->protocol;
-
- setstack_tei(st);
-
- st->l1.stlistp = &(sp->stlist);
- st->l1.act_state = 0;
- st->l2.l2l1 = teles_l2l1;
- st->l2.l2l1discardq = teles_l2l1discardq;
- st->ma.manl1 = teles_manl1;
- st->l1.requestpull = 0;
-}
-
-void
-init_hscxstate(struct IsdnCardState *sp,
- int hscx)
-{
- struct HscxState *hsp = sp->hs + hscx;
-
- hsp->sp = sp;
- hsp->hscx = hscx;
- hsp->membase = sp->membase;
- hsp->iobase = sp->iobase;
-
- hsp->tqueue.next = 0;
- hsp->tqueue.sync = 0;
- hsp->tqueue.routine = (void *) (void *) hscx_bh;
- hsp->tqueue.data = hsp;
-
- hsp->inuse = 0;
- hsp->init = 0;
- hsp->active = 0;
-
-#ifdef DEBUG_MAGIC
- hsp->magic = 301270;
-#endif
-}
-
-void
-initcard(int cardnr)
-{
- struct IsdnCardState *sp;
- struct IsdnCard *card = cards + cardnr;
-
- sp = (struct IsdnCardState *)
- Smalloc(sizeof(struct IsdnCardState), GFP_KERNEL,
- "struct IsdnCardState");
-
- sp->membase = card->membase;
- sp->iobase = card->iobase;
- sp->cardnr = cardnr;
-
- BufPoolInit(&sp->sbufpool, ISAC_SBUF_ORDER, ISAC_SBUF_BPPS,
- ISAC_SBUF_MAXPAGES);
- BufPoolInit(&sp->rbufpool, ISAC_RBUF_ORDER, ISAC_RBUF_BPPS,
- ISAC_RBUF_MAXPAGES);
- BufPoolInit(&sp->smallpool, ISAC_SMALLBUF_ORDER, ISAC_SMALLBUF_BPPS,
- ISAC_SMALLBUF_MAXPAGES);
-
- sp->dlogspace = Smalloc(4096, GFP_KERNEL, "dlogspace");
-
- initisac(card->membase, card->iobase);
-
- sp->rcvibh = NULL;
- sp->rcvptr = 0;
- sp->xmtibh = NULL;
- sp->sendptr = 0;
- sp->event = 0;
- sp->tqueue.next = 0;
- sp->tqueue.sync = 0;
- sp->tqueue.routine = (void *) (void *) isac_bh;
- sp->tqueue.data = sp;
-
- BufQueueInit(&sp->rq);
- BufQueueInit(&sp->sq);
-
- sp->stlist = NULL;
-
- sp->ph_active = 0;
-
- sp->dlogflag = 0;
- sp->debug = 0;
-
- sp->releasebuf = 0;
-#ifdef DEBUG_MAGIC
- sp->magic = 301271;
-#endif
-
- cards[sp->cardnr].sp = sp;
-
- init_hscxstate(sp, 0);
- init_hscxstate(sp, 1);
-
- modehscx(sp->hs, 0, 0);
- modehscx(sp->hs + 1, 0, 0);
-
- WRITEISAC(sp->membase, sp->iobase, ISAC_MASK, 0x0);
-}
-
-static int
-get_irq(int cardnr)
-{
- struct IsdnCard *card = cards + cardnr;
- long flags;
-
- save_flags(flags);
- cli();
- if (request_irq(card->interrupt, &teles_interrupt,
- SA_INTERRUPT, "teles", NULL)) {
- printk(KERN_WARNING "Teles couldn't get interrupt %d\n",
- card->interrupt);
- restore_flags(flags);
- return (!0);
- }
- irq2dev_map[card->interrupt] = (void *) card->sp;
- restore_flags(flags);
- return (0);
-}
-
-static void
-release_irq(int cardnr)
-{
- struct IsdnCard *card = cards + cardnr;
-
- irq2dev_map[card->interrupt] = NULL;
- free_irq(card->interrupt, NULL);
-}
-
-void
-close_hscxstate(struct HscxState *hs)
-{
- modehscx(hs, 0, 0);
- hs->inuse = 0;
-
- if (hs->init) {
- BufPoolFree(&hs->smallpool);
- BufPoolFree(&hs->rbufpool);
- BufPoolFree(&hs->sbufpool);
- }
- hs->init = 0;
-}
-
-void
-closecard(int cardnr)
-{
- struct IsdnCardState *sp = cards[cardnr].sp;
-
- cards[cardnr].sp = NULL;
-
- Sfree(sp->dlogspace);
-
- BufPoolFree(&sp->smallpool);
- BufPoolFree(&sp->rbufpool);
- BufPoolFree(&sp->sbufpool);
-
- close_hscxstate(sp->hs + 1);
- close_hscxstate(sp->hs);
-
- if (cards[cardnr].iobase)
- if (cards[cardnr].membase) { /* 16.0 */
- release_region(cards[cardnr].iobase, 8);
- } else {
- release_region(cards[cardnr].iobase, 16);
- release_region(cards[cardnr].iobase - 0xC00, 32);
- release_region(cards[cardnr].iobase - 0x800, 32);
- release_region(cards[cardnr].iobase - 0x400, 32);
- }
-
- Sfree((void *) sp);
-}
-
-void
-teles_shiftcards(int idx)
-{
- int i;
-
- for (i = idx; i < 15; i++)
- memcpy(&cards[i],&cards[i+1],sizeof(cards[i]));
-}
-
-int
-teles_inithardware(void)
-{
- int foundcards = 0;
- int i = 0;
-
- while (i < nrcards) {
- if (!cards[i].protocol)
- break;
- switch (checkcard(i)) {
- case (0):
- initcard(i);
- if (get_irq(i)) {
- closecard(i);
- teles_shiftcards(i);
- } else {
- foundcards++;
- i++;
- }
- break;
- case (-1):
- teles_shiftcards(i);
- break;
- case (-2):
- release_region(cards[i].iobase, 8);
- printk(KERN_WARNING "NO Teles card found at 0x%x!\n", cards[i].iobase);
- teles_shiftcards(i);
- break;
- }
- }
- return foundcards;
-}
-
-void
-teles_closehardware(void)
-{
- int i;
-
- for (i = 0; i < nrcards; i++)
- if (cards[i].sp) {
- release_irq(i);
- closecard(i);
- }
-}
-
-static void
-hscx_l2l1(struct PStack *st, int pr,
- struct BufHeader *ibh)
-{
- struct IsdnCardState *sp = (struct IsdnCardState *)
- st->l1.hardware;
- struct HscxState *hsp = sp->hs + st->l1.hscx;
- long flags;
-
- switch (pr) {
- case (PH_DATA):
- save_flags(flags);
- cli();
- if (hsp->xmtibh) {
- BufQueueLink(&hsp->sq, ibh);
- restore_flags(flags);
- }
- else {
- restore_flags(flags);
- hsp->xmtibh = ibh;
- hsp->sendptr = 0;
- hsp->releasebuf = !0;
- hscx_fill_fifo(hsp);
- }
- break;
- case (PH_DATA_PULLED):
- if (hsp->xmtibh) {
- printk(KERN_DEBUG "hscx_l2l1: this shouldn't happen\n");
- break;
- }
- hsp->xmtibh = ibh;
- hsp->sendptr = 0;
- hsp->releasebuf = 0;
- hscx_fill_fifo(hsp);
- break;
- case (PH_REQUEST_PULL):
- if (!hsp->xmtibh) {
- st->l1.requestpull = 0;
- st->l1.l1l2(st, PH_PULL_ACK, NULL);
- } else
- st->l1.requestpull = !0;
- break;
- }
-
-}
-
-extern struct IsdnBuffers *tracebuf;
-
-static void
-hscx_l2l1discardq(struct PStack *st, int pr, void *heldby,
- int releasetoo)
-{
- struct IsdnCardState *sp = (struct IsdnCardState *)
- st->l1.hardware;
- struct HscxState *hsp = sp->hs + st->l1.hscx;
-
-#ifdef DEBUG_MAGIC
- if (hsp->magic != 301270) {
- printk(KERN_DEBUG "hscx_discardq magic not 301270\n");
- return;
- }
-#endif
-
- BufQueueDiscard(&hsp->sq, pr, heldby, releasetoo);
-}
-
-static int
-open_hscxstate(struct IsdnCardState *sp,
- int hscx)
-{
- struct HscxState *hsp = sp->hs + hscx;
-
- if (!hsp->init) {
- BufPoolInit(&hsp->sbufpool, HSCX_SBUF_ORDER, HSCX_SBUF_BPPS,
- HSCX_SBUF_MAXPAGES);
- BufPoolInit(&hsp->rbufpool, HSCX_RBUF_ORDER, HSCX_RBUF_BPPS,
- HSCX_RBUF_MAXPAGES);
- BufPoolInit(&hsp->smallpool, HSCX_SMALLBUF_ORDER, HSCX_SMALLBUF_BPPS,
- HSCX_SMALLBUF_MAXPAGES);
- }
- hsp->init = !0;
-
- BufQueueInit(&hsp->rq);
- BufQueueInit(&hsp->sq);
-
- hsp->releasebuf = 0;
- hsp->rcvibh = NULL;
- hsp->xmtibh = NULL;
- hsp->rcvptr = 0;
- hsp->sendptr = 0;
- hsp->event = 0;
- return (0);
-}
-
-static void
-hscx_manl1(struct PStack *st, int pr,
- void *arg)
-{
- struct IsdnCardState *sp = (struct IsdnCardState *)
- st->l1.hardware;
- struct HscxState *hsp = sp->hs + st->l1.hscx;
-
- switch (pr) {
- case (PH_ACTIVATE):
- hsp->active = !0;
- modehscx(hsp, st->l1.hscxmode, st->l1.hscxchannel);
- st->l1.l1man(st, PH_ACTIVATE, NULL);
- break;
- case (PH_DEACTIVATE):
- if (!hsp->xmtibh)
- modehscx(hsp, 0, 0);
-
- hsp->active = 0;
- break;
- }
-}
-
-int
-setstack_hscx(struct PStack *st, struct HscxState *hs)
-{
- if (open_hscxstate(st->l1.hardware, hs->hscx))
- return (-1);
-
- st->l1.hscx = hs->hscx;
- st->l2.l2l1 = hscx_l2l1;
- st->ma.manl1 = hscx_manl1;
- st->l2.l2l1discardq = hscx_l2l1discardq;
-
- st->l1.sbufpool = &hs->sbufpool;
- st->l1.rbufpool = &hs->rbufpool;
- st->l1.smallpool = &hs->smallpool;
- st->l1.act_state = 0;
- st->l1.requestpull = 0;
-
- hs->st = st;
- return (0);
-}
-
-void
-teles_reportcard(int cardnr)
-{
- printk(KERN_DEBUG "teles_reportcard\n");
-}
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TCL-scripts by Sam Shen, slshen@lbl.gov