508 lines
13 KiB
C
508 lines
13 KiB
C
/* $Id$
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* teles3.c low level stuff for Teles 16.3 & PNP isdn cards
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*
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* based on the teles driver from Jan den Ouden
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*
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* Author Karsten Keil (keil@temic-ech.spacenet.de)
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*
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* Thanks to Jan den Ouden
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* Fritz Elfert
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* Beat Doebeli
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*
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* $Log$
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* Revision 2.12 1999/07/12 21:05:32 keil
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* fix race in IRQ handling
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* added watchdog for lost IRQs
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*
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* Revision 2.11 1999/07/01 08:12:14 keil
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* Common HiSax version for 2.0, 2.1, 2.2 and 2.3 kernel
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*
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* Revision 2.10 1999/02/15 14:37:15 cpetig
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* oops, missed something in last commit
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*
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* Revision 2.9 1999/02/15 14:11:02 cpetig
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* fixed a bug with Teles PCMCIA, it doesn't have a config register
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*
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* Revision 2.8 1998/04/15 16:44:30 keil
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* new init code
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*
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* Revision 2.7 1998/02/02 13:29:48 keil
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* fast io
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*
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* Revision 2.6 1997/11/13 16:22:44 keil
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* COMPAQ_ISA reset
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*
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* Revision 2.5 1997/11/12 15:01:25 keil
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* COMPAQ_ISA changes
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*
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* Revision 2.4 1997/11/08 21:35:56 keil
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* new l1 init
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*
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* Revision 2.3 1997/11/06 17:09:33 keil
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* New 2.1 init code
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*
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* Revision 2.2 1997/10/29 18:55:59 keil
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* changes for 2.1.60 (irq2dev_map)
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*
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* Revision 2.1 1997/07/27 21:47:12 keil
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* new interface structures
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*
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* Revision 2.0 1997/06/26 11:02:46 keil
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* New Layer and card interface
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*
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* Revision 1.11 1997/04/13 19:54:05 keil
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* Change in IRQ check delay for SMP
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*
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* Revision 1.10 1997/04/06 22:54:05 keil
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* Using SKB's
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*
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* Revision 1.9 1997/03/22 02:01:07 fritz
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* -Reworked toplevel Makefile. From now on, no different Makefiles
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* for standalone- and in-kernel-compilation are needed any more.
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* -Added local Rules.make for above reason.
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* -Experimental changes in teles3.c for enhanced IRQ-checking with
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* 2.1.X and SMP kernels.
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* -Removed diffstd-script, same functionality is in stddiff -r.
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* -Enhanced scripts std2kern and stddiff.
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*
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* Revision 1.8 1997/02/23 18:43:55 fritz
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* Added support for Teles-Vision.
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*
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* Revision 1.7 1997/01/28 22:48:33 keil
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* fixes for Teles PCMCIA (Christof Petig)
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*
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* Revision 1.6 1997/01/27 15:52:55 keil
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* SMP proof,cosmetics, PCMCIA added
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*
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* removed old log info /KKe
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*
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*/
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#define __NO_VERSION__
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#include "hisax.h"
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#include "isac.h"
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#include "hscx.h"
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#include "isdnl1.h"
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extern const char *CardType[];
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const char *teles3_revision = "$Revision$";
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#define byteout(addr,val) outb(val,addr)
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#define bytein(addr) inb(addr)
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static inline u_char
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readreg(unsigned int adr, u_char off)
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{
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return (bytein(adr + off));
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}
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static inline void
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writereg(unsigned int adr, u_char off, u_char data)
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{
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byteout(adr + off, data);
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}
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static inline void
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read_fifo(unsigned int adr, u_char * data, int size)
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{
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insb(adr, data, size);
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}
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static void
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write_fifo(unsigned int adr, u_char * data, int size)
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{
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outsb(adr, data, size);
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}
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/* Interface functions */
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static u_char
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ReadISAC(struct IsdnCardState *cs, u_char offset)
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{
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return (readreg(cs->hw.teles3.isac, offset));
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}
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static void
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WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
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{
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writereg(cs->hw.teles3.isac, offset, value);
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}
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static void
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ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size)
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{
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read_fifo(cs->hw.teles3.isacfifo, data, size);
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}
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static void
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WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size)
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{
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write_fifo(cs->hw.teles3.isacfifo, data, size);
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}
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static u_char
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ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
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{
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return (readreg(cs->hw.teles3.hscx[hscx], offset));
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}
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static void
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WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
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{
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writereg(cs->hw.teles3.hscx[hscx], offset, value);
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}
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/*
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* fast interrupt HSCX stuff goes here
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*/
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#define READHSCX(cs, nr, reg) readreg(cs->hw.teles3.hscx[nr], reg)
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#define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.teles3.hscx[nr], reg, data)
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#define READHSCXFIFO(cs, nr, ptr, cnt) read_fifo(cs->hw.teles3.hscxfifo[nr], ptr, cnt)
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#define WRITEHSCXFIFO(cs, nr, ptr, cnt) write_fifo(cs->hw.teles3.hscxfifo[nr], ptr, cnt)
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#include "hscx_irq.c"
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static void
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teles3_interrupt(int intno, void *dev_id, struct pt_regs *regs)
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{
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#define MAXCOUNT 5
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struct IsdnCardState *cs = dev_id;
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u_char val;
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int count = 0;
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if (!cs) {
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printk(KERN_WARNING "Teles: Spurious interrupt!\n");
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return;
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}
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val = readreg(cs->hw.teles3.hscx[1], HSCX_ISTA);
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Start_HSCX:
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if (val)
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hscx_int_main(cs, val);
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val = readreg(cs->hw.teles3.isac, ISAC_ISTA);
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Start_ISAC:
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if (val)
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isac_interrupt(cs, val);
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count++;
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val = readreg(cs->hw.teles3.hscx[1], HSCX_ISTA);
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if (val && count < MAXCOUNT) {
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if (cs->debug & L1_DEB_HSCX)
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debugl1(cs, "HSCX IntStat after IntRoutine");
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goto Start_HSCX;
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}
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val = readreg(cs->hw.teles3.isac, ISAC_ISTA);
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if (val && count < MAXCOUNT) {
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if (cs->debug & L1_DEB_ISAC)
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debugl1(cs, "ISAC IntStat after IntRoutine");
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goto Start_ISAC;
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}
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if (count >= MAXCOUNT)
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printk(KERN_WARNING "Teles3: more than %d loops in teles3_interrupt\n", count);
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writereg(cs->hw.teles3.hscx[0], HSCX_MASK, 0xFF);
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writereg(cs->hw.teles3.hscx[1], HSCX_MASK, 0xFF);
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writereg(cs->hw.teles3.isac, ISAC_MASK, 0xFF);
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writereg(cs->hw.teles3.isac, ISAC_MASK, 0x0);
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writereg(cs->hw.teles3.hscx[0], HSCX_MASK, 0x0);
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writereg(cs->hw.teles3.hscx[1], HSCX_MASK, 0x0);
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}
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inline static void
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release_ioregs(struct IsdnCardState *cs, int mask)
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{
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if (mask & 1)
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release_region(cs->hw.teles3.isac + 32, 32);
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if (mask & 2)
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release_region(cs->hw.teles3.hscx[0] + 32, 32);
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if (mask & 4)
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release_region(cs->hw.teles3.hscx[1] + 32, 32);
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}
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void
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release_io_teles3(struct IsdnCardState *cs)
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{
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if (cs->typ == ISDN_CTYPE_TELESPCMCIA) {
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release_region(cs->hw.teles3.hscx[0], 97);
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} else {
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if (cs->hw.teles3.cfg_reg) {
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if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
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release_region(cs->hw.teles3.cfg_reg, 1);
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} else {
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release_region(cs->hw.teles3.cfg_reg, 8);
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}
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}
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release_ioregs(cs, 0x7);
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}
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}
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static int
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reset_teles3(struct IsdnCardState *cs)
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{
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long flags;
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u_char irqcfg;
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if (cs->typ != ISDN_CTYPE_TELESPCMCIA) {
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if ((cs->hw.teles3.cfg_reg) && (cs->typ != ISDN_CTYPE_COMPAQ_ISA)) {
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switch (cs->irq) {
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case 2:
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case 9:
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irqcfg = 0x00;
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break;
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case 3:
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irqcfg = 0x02;
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break;
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case 4:
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irqcfg = 0x04;
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break;
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case 5:
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irqcfg = 0x06;
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break;
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case 10:
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irqcfg = 0x08;
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break;
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case 11:
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irqcfg = 0x0A;
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break;
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case 12:
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irqcfg = 0x0C;
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break;
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case 15:
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irqcfg = 0x0E;
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break;
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default:
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return(1);
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}
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save_flags(flags);
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byteout(cs->hw.teles3.cfg_reg + 4, irqcfg);
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sti();
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HZDELAY(HZ / 10 + 1);
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byteout(cs->hw.teles3.cfg_reg + 4, irqcfg | 1);
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HZDELAY(HZ / 10 + 1);
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restore_flags(flags);
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} else if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
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save_flags(flags);
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byteout(cs->hw.teles3.cfg_reg, 0xff);
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HZDELAY(2);
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byteout(cs->hw.teles3.cfg_reg, 0x00);
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HZDELAY(2);
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restore_flags(flags);
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} else {
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/* Reset off for 16.3 PnP , thanks to Georg Acher */
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save_flags(flags);
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byteout(cs->hw.teles3.isac + 0x3c, 0);
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HZDELAY(2);
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byteout(cs->hw.teles3.isac + 0x3c, 1);
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HZDELAY(2);
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restore_flags(flags);
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}
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}
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return(0);
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}
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static int
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Teles_card_msg(struct IsdnCardState *cs, int mt, void *arg)
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{
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switch (mt) {
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case CARD_RESET:
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reset_teles3(cs);
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return(0);
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case CARD_RELEASE:
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release_io_teles3(cs);
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return(0);
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case CARD_INIT:
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inithscxisac(cs, 3);
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return(0);
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case CARD_TEST:
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return(0);
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}
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return(0);
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}
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__initfunc(int
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setup_teles3(struct IsdnCard *card))
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{
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u_char val;
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struct IsdnCardState *cs = card->cs;
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char tmp[64];
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strcpy(tmp, teles3_revision);
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printk(KERN_INFO "HiSax: Teles IO driver Rev. %s\n", HiSax_getrev(tmp));
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if ((cs->typ != ISDN_CTYPE_16_3) && (cs->typ != ISDN_CTYPE_PNP)
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&& (cs->typ != ISDN_CTYPE_TELESPCMCIA) && (cs->typ != ISDN_CTYPE_COMPAQ_ISA))
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return (0);
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if (cs->typ == ISDN_CTYPE_16_3) {
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cs->hw.teles3.cfg_reg = card->para[1];
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switch (cs->hw.teles3.cfg_reg) {
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case 0x180:
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case 0x280:
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case 0x380:
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cs->hw.teles3.cfg_reg |= 0xc00;
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break;
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}
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cs->hw.teles3.isac = cs->hw.teles3.cfg_reg - 0x420;
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cs->hw.teles3.hscx[0] = cs->hw.teles3.cfg_reg - 0xc20;
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cs->hw.teles3.hscx[1] = cs->hw.teles3.cfg_reg - 0x820;
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} else if (cs->typ == ISDN_CTYPE_TELESPCMCIA) {
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cs->hw.teles3.cfg_reg = 0;
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cs->hw.teles3.hscx[0] = card->para[1] - 0x20;
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cs->hw.teles3.hscx[1] = card->para[1];
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cs->hw.teles3.isac = card->para[1] + 0x20;
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} else if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
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cs->hw.teles3.cfg_reg = card->para[3];
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cs->hw.teles3.isac = card->para[2] - 32;
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cs->hw.teles3.hscx[0] = card->para[1] - 32;
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cs->hw.teles3.hscx[1] = card->para[1];
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} else { /* PNP */
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cs->hw.teles3.cfg_reg = 0;
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cs->hw.teles3.isac = card->para[1] - 32;
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cs->hw.teles3.hscx[0] = card->para[2] - 32;
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cs->hw.teles3.hscx[1] = card->para[2];
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}
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cs->irq = card->para[0];
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cs->hw.teles3.isacfifo = cs->hw.teles3.isac + 0x3e;
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cs->hw.teles3.hscxfifo[0] = cs->hw.teles3.hscx[0] + 0x3e;
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cs->hw.teles3.hscxfifo[1] = cs->hw.teles3.hscx[1] + 0x3e;
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if (cs->typ == ISDN_CTYPE_TELESPCMCIA) {
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if (check_region((cs->hw.teles3.hscx[0]), 97)) {
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printk(KERN_WARNING
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"HiSax: %s ports %x-%x already in use\n",
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CardType[cs->typ],
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cs->hw.teles3.hscx[0],
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cs->hw.teles3.hscx[0] + 96);
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return (0);
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} else
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request_region(cs->hw.teles3.hscx[0], 97, "HiSax Teles PCMCIA");
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} else {
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if (cs->hw.teles3.cfg_reg) {
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if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
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if (check_region((cs->hw.teles3.cfg_reg), 1)) {
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printk(KERN_WARNING
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"HiSax: %s config port %x already in use\n",
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CardType[card->typ],
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cs->hw.teles3.cfg_reg);
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return (0);
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} else
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request_region(cs->hw.teles3.cfg_reg, 1, "teles3 cfg");
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} else {
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if (check_region((cs->hw.teles3.cfg_reg), 8)) {
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printk(KERN_WARNING
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"HiSax: %s config port %x-%x already in use\n",
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CardType[card->typ],
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cs->hw.teles3.cfg_reg,
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cs->hw.teles3.cfg_reg + 8);
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return (0);
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} else
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request_region(cs->hw.teles3.cfg_reg, 8, "teles3 cfg");
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}
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}
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if (check_region((cs->hw.teles3.isac + 32), 32)) {
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printk(KERN_WARNING
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"HiSax: %s isac ports %x-%x already in use\n",
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CardType[cs->typ],
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cs->hw.teles3.isac + 32,
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cs->hw.teles3.isac + 64);
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if (cs->hw.teles3.cfg_reg) {
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if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
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release_region(cs->hw.teles3.cfg_reg, 1);
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} else {
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release_region(cs->hw.teles3.cfg_reg, 8);
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}
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}
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return (0);
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} else
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request_region(cs->hw.teles3.isac + 32, 32, "HiSax isac");
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if (check_region((cs->hw.teles3.hscx[0] + 32), 32)) {
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printk(KERN_WARNING
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"HiSax: %s hscx A ports %x-%x already in use\n",
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CardType[cs->typ],
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cs->hw.teles3.hscx[0] + 32,
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cs->hw.teles3.hscx[0] + 64);
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if (cs->hw.teles3.cfg_reg) {
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if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
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release_region(cs->hw.teles3.cfg_reg, 1);
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} else {
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release_region(cs->hw.teles3.cfg_reg, 8);
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}
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}
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release_ioregs(cs, 1);
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return (0);
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} else
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request_region(cs->hw.teles3.hscx[0] + 32, 32, "HiSax hscx A");
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if (check_region((cs->hw.teles3.hscx[1] + 32), 32)) {
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printk(KERN_WARNING
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"HiSax: %s hscx B ports %x-%x already in use\n",
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CardType[cs->typ],
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cs->hw.teles3.hscx[1] + 32,
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cs->hw.teles3.hscx[1] + 64);
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if (cs->hw.teles3.cfg_reg) {
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if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
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release_region(cs->hw.teles3.cfg_reg, 1);
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} else {
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release_region(cs->hw.teles3.cfg_reg, 8);
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}
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}
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release_ioregs(cs, 3);
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return (0);
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} else
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request_region(cs->hw.teles3.hscx[1] + 32, 32, "HiSax hscx B");
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}
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if ((cs->hw.teles3.cfg_reg) && (cs->typ != ISDN_CTYPE_COMPAQ_ISA)) {
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if ((val = bytein(cs->hw.teles3.cfg_reg + 0)) != 0x51) {
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printk(KERN_WARNING "Teles: 16.3 Byte at %x is %x\n",
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cs->hw.teles3.cfg_reg + 0, val);
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release_io_teles3(cs);
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|
return (0);
|
|
}
|
|
if ((val = bytein(cs->hw.teles3.cfg_reg + 1)) != 0x93) {
|
|
printk(KERN_WARNING "Teles: 16.3 Byte at %x is %x\n",
|
|
cs->hw.teles3.cfg_reg + 1, val);
|
|
release_io_teles3(cs);
|
|
return (0);
|
|
}
|
|
val = bytein(cs->hw.teles3.cfg_reg + 2);/* 0x1e=without AB
|
|
* 0x1f=with AB
|
|
* 0x1c 16.3 ???
|
|
* 0x39 16.3 1.1
|
|
* 0x38 16.3 1.3
|
|
* 0x46 16.3 with AB + Video (Teles-Vision)
|
|
*/
|
|
if (val != 0x46 && val != 0x39 && val != 0x38 && val != 0x1c && val != 0x1e && val != 0x1f) {
|
|
printk(KERN_WARNING "Teles: 16.3 Byte at %x is %x\n",
|
|
cs->hw.teles3.cfg_reg + 2, val);
|
|
release_io_teles3(cs);
|
|
return (0);
|
|
}
|
|
}
|
|
printk(KERN_INFO
|
|
"HiSax: %s config irq:%d isac:0x%X cfg:0x%X\n",
|
|
CardType[cs->typ], cs->irq,
|
|
cs->hw.teles3.isac + 32, cs->hw.teles3.cfg_reg);
|
|
printk(KERN_INFO
|
|
"HiSax: hscx A:0x%X hscx B:0x%X\n",
|
|
cs->hw.teles3.hscx[0] + 32, cs->hw.teles3.hscx[1] + 32);
|
|
|
|
if (reset_teles3(cs)) {
|
|
printk(KERN_WARNING "Teles3: wrong IRQ\n");
|
|
release_io_teles3(cs);
|
|
return (0);
|
|
}
|
|
cs->readisac = &ReadISAC;
|
|
cs->writeisac = &WriteISAC;
|
|
cs->readisacfifo = &ReadISACfifo;
|
|
cs->writeisacfifo = &WriteISACfifo;
|
|
cs->BC_Read_Reg = &ReadHSCX;
|
|
cs->BC_Write_Reg = &WriteHSCX;
|
|
cs->BC_Send_Data = &hscx_fill_fifo;
|
|
cs->cardmsg = &Teles_card_msg;
|
|
cs->irq_func = &teles3_interrupt;
|
|
ISACVersion(cs, "Teles3:");
|
|
if (HscxVersion(cs, "Teles3:")) {
|
|
printk(KERN_WARNING
|
|
"Teles3: wrong HSCX versions check IO address\n");
|
|
release_io_teles3(cs);
|
|
return (0);
|
|
}
|
|
return (1);
|
|
}
|