308 lines
8.1 KiB
C
308 lines
8.1 KiB
C
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/* $Id: avm_a1.c,v 2.15.2.4 2004/01/13 21:46:03 keil Exp $
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*
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* low level stuff for AVM A1 (Fritz) isdn cards
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*
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* Author Karsten Keil
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* Copyright by Karsten Keil <keil@isdn4linux.de>
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*
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* This software may be used and distributed according to the terms
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* of the GNU General Public License, incorporated herein by reference.
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*
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*/
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#include <linux/init.h>
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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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static const char *avm_revision = "$Revision: 2.15.2.4 $";
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#define AVM_A1_STAT_ISAC 0x01
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#define AVM_A1_STAT_HSCX 0x02
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#define AVM_A1_STAT_TIMER 0x04
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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.avm.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.avm.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.avm.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.avm.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.avm.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.avm.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.avm.hscx[nr], reg)
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#define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.avm.hscx[nr], reg, data)
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#define READHSCXFIFO(cs, nr, ptr, cnt) read_fifo(cs->hw.avm.hscxfifo[nr], ptr, cnt)
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#define WRITEHSCXFIFO(cs, nr, ptr, cnt) write_fifo(cs->hw.avm.hscxfifo[nr], ptr, cnt)
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#include "hscx_irq.c"
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static irqreturn_t
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avm_a1_interrupt(int intno, void *dev_id)
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{
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struct IsdnCardState *cs = dev_id;
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u_char val, sval;
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u_long flags;
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spin_lock_irqsave(&cs->lock, flags);
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while (((sval = bytein(cs->hw.avm.cfg_reg)) & 0xf) != 0x7) {
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if (!(sval & AVM_A1_STAT_TIMER)) {
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byteout(cs->hw.avm.cfg_reg, 0x1E);
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sval = bytein(cs->hw.avm.cfg_reg);
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} else if (cs->debug & L1_DEB_INTSTAT)
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debugl1(cs, "avm IntStatus %x", sval);
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if (!(sval & AVM_A1_STAT_HSCX)) {
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val = readreg(cs->hw.avm.hscx[1], HSCX_ISTA);
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if (val)
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hscx_int_main(cs, val);
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}
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if (!(sval & AVM_A1_STAT_ISAC)) {
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val = readreg(cs->hw.avm.isac, ISAC_ISTA);
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if (val)
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isac_interrupt(cs, val);
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}
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}
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writereg(cs->hw.avm.hscx[0], HSCX_MASK, 0xFF);
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writereg(cs->hw.avm.hscx[1], HSCX_MASK, 0xFF);
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writereg(cs->hw.avm.isac, ISAC_MASK, 0xFF);
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writereg(cs->hw.avm.isac, ISAC_MASK, 0x0);
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writereg(cs->hw.avm.hscx[0], HSCX_MASK, 0x0);
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writereg(cs->hw.avm.hscx[1], HSCX_MASK, 0x0);
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spin_unlock_irqrestore(&cs->lock, flags);
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return IRQ_HANDLED;
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}
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static inline void
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release_ioregs(struct IsdnCardState *cs, int mask)
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{
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release_region(cs->hw.avm.cfg_reg, 8);
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if (mask & 1)
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release_region(cs->hw.avm.isac + 32, 32);
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if (mask & 2)
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release_region(cs->hw.avm.isacfifo, 1);
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if (mask & 4)
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release_region(cs->hw.avm.hscx[0] + 32, 32);
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if (mask & 8)
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release_region(cs->hw.avm.hscxfifo[0], 1);
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if (mask & 0x10)
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release_region(cs->hw.avm.hscx[1] + 32, 32);
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if (mask & 0x20)
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release_region(cs->hw.avm.hscxfifo[1], 1);
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}
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static int
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AVM_card_msg(struct IsdnCardState *cs, int mt, void *arg)
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{
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u_long flags;
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switch (mt) {
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case CARD_RESET:
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return (0);
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case CARD_RELEASE:
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release_ioregs(cs, 0x3f);
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return (0);
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case CARD_INIT:
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spin_lock_irqsave(&cs->lock, flags);
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inithscxisac(cs, 1);
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byteout(cs->hw.avm.cfg_reg, 0x16);
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byteout(cs->hw.avm.cfg_reg, 0x1E);
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inithscxisac(cs, 2);
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spin_unlock_irqrestore(&cs->lock, flags);
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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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int setup_avm_a1(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, avm_revision);
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printk(KERN_INFO "HiSax: AVM driver Rev. %s\n", HiSax_getrev(tmp));
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if (cs->typ != ISDN_CTYPE_A1)
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return (0);
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cs->hw.avm.cfg_reg = card->para[1] + 0x1800;
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cs->hw.avm.isac = card->para[1] + 0x1400 - 0x20;
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cs->hw.avm.hscx[0] = card->para[1] + 0x400 - 0x20;
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cs->hw.avm.hscx[1] = card->para[1] + 0xc00 - 0x20;
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cs->hw.avm.isacfifo = card->para[1] + 0x1000;
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cs->hw.avm.hscxfifo[0] = card->para[1];
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cs->hw.avm.hscxfifo[1] = card->para[1] + 0x800;
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cs->irq = card->para[0];
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if (!request_region(cs->hw.avm.cfg_reg, 8, "avm cfg")) {
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printk(KERN_WARNING
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"HiSax: AVM A1 config port %x-%x already in use\n",
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cs->hw.avm.cfg_reg,
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cs->hw.avm.cfg_reg + 8);
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return (0);
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}
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if (!request_region(cs->hw.avm.isac + 32, 32, "HiSax isac")) {
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printk(KERN_WARNING
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"HiSax: AVM A1 isac ports %x-%x already in use\n",
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cs->hw.avm.isac + 32,
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cs->hw.avm.isac + 64);
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release_ioregs(cs, 0);
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return (0);
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}
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if (!request_region(cs->hw.avm.isacfifo, 1, "HiSax isac fifo")) {
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printk(KERN_WARNING
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"HiSax: AVM A1 isac fifo port %x already in use\n",
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cs->hw.avm.isacfifo);
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release_ioregs(cs, 1);
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return (0);
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}
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if (!request_region(cs->hw.avm.hscx[0] + 32, 32, "HiSax hscx A")) {
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printk(KERN_WARNING
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"HiSax: AVM A1 hscx A ports %x-%x already in use\n",
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cs->hw.avm.hscx[0] + 32,
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cs->hw.avm.hscx[0] + 64);
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release_ioregs(cs, 3);
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return (0);
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}
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if (!request_region(cs->hw.avm.hscxfifo[0], 1, "HiSax hscx A fifo")) {
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printk(KERN_WARNING
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"HiSax: AVM A1 hscx A fifo port %x already in use\n",
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cs->hw.avm.hscxfifo[0]);
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release_ioregs(cs, 7);
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return (0);
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}
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if (!request_region(cs->hw.avm.hscx[1] + 32, 32, "HiSax hscx B")) {
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printk(KERN_WARNING
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"HiSax: AVM A1 hscx B ports %x-%x already in use\n",
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cs->hw.avm.hscx[1] + 32,
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cs->hw.avm.hscx[1] + 64);
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release_ioregs(cs, 0xf);
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return (0);
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}
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if (!request_region(cs->hw.avm.hscxfifo[1], 1, "HiSax hscx B fifo")) {
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printk(KERN_WARNING
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"HiSax: AVM A1 hscx B fifo port %x already in use\n",
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cs->hw.avm.hscxfifo[1]);
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release_ioregs(cs, 0x1f);
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return (0);
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}
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byteout(cs->hw.avm.cfg_reg, 0x0);
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HZDELAY(HZ / 5 + 1);
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byteout(cs->hw.avm.cfg_reg, 0x1);
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HZDELAY(HZ / 5 + 1);
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byteout(cs->hw.avm.cfg_reg, 0x0);
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HZDELAY(HZ / 5 + 1);
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val = cs->irq;
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if (val == 9)
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val = 2;
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byteout(cs->hw.avm.cfg_reg + 1, val);
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HZDELAY(HZ / 5 + 1);
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byteout(cs->hw.avm.cfg_reg, 0x0);
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HZDELAY(HZ / 5 + 1);
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val = bytein(cs->hw.avm.cfg_reg);
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printk(KERN_INFO "AVM A1: Byte at %x is %x\n",
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cs->hw.avm.cfg_reg, val);
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val = bytein(cs->hw.avm.cfg_reg + 3);
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printk(KERN_INFO "AVM A1: Byte at %x is %x\n",
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cs->hw.avm.cfg_reg + 3, val);
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val = bytein(cs->hw.avm.cfg_reg + 2);
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printk(KERN_INFO "AVM A1: Byte at %x is %x\n",
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cs->hw.avm.cfg_reg + 2, val);
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val = bytein(cs->hw.avm.cfg_reg);
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printk(KERN_INFO "AVM A1: Byte at %x is %x\n",
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cs->hw.avm.cfg_reg, val);
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printk(KERN_INFO "HiSax: AVM A1 config irq:%d cfg:0x%X\n",
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cs->irq,
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cs->hw.avm.cfg_reg);
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printk(KERN_INFO
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"HiSax: isac:0x%X/0x%X\n",
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cs->hw.avm.isac + 32, cs->hw.avm.isacfifo);
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printk(KERN_INFO
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"HiSax: hscx A:0x%X/0x%X hscx B:0x%X/0x%X\n",
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cs->hw.avm.hscx[0] + 32, cs->hw.avm.hscxfifo[0],
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cs->hw.avm.hscx[1] + 32, cs->hw.avm.hscxfifo[1]);
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cs->readisac = &ReadISAC;
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cs->writeisac = &WriteISAC;
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cs->readisacfifo = &ReadISACfifo;
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cs->writeisacfifo = &WriteISACfifo;
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cs->BC_Read_Reg = &ReadHSCX;
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cs->BC_Write_Reg = &WriteHSCX;
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cs->BC_Send_Data = &hscx_fill_fifo;
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setup_isac(cs);
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cs->cardmsg = &AVM_card_msg;
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cs->irq_func = &avm_a1_interrupt;
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ISACVersion(cs, "AVM A1:");
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if (HscxVersion(cs, "AVM A1:")) {
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printk(KERN_WARNING
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"AVM A1: wrong HSCX versions check IO address\n");
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release_ioregs(cs, 0x3f);
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return (0);
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}
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return (1);
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}
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