/* $Id: avm_a1.c,v 2.15.2.4 2004/01/13 21:46:03 keil Exp $ * * low level stuff for AVM A1 (Fritz) isdn cards * * Author Karsten Keil * Copyright by Karsten Keil <keil@isdn4linux.de> * * This software may be used and distributed according to the terms * of the GNU General Public License, incorporated herein by reference. * */ #include <linux/init.h> #include "hisax.h" #include "isac.h" #include "hscx.h" #include "isdnl1.h" extern const char *CardType[]; static const char *avm_revision = "$Revision: 2.15.2.4 $"; #define AVM_A1_STAT_ISAC 0x01 #define AVM_A1_STAT_HSCX 0x02 #define AVM_A1_STAT_TIMER 0x04 #define byteout(addr,val) outb(val,addr) #define bytein(addr) inb(addr) static inline u_char readreg(unsigned int adr, u_char off) { return (bytein(adr + off)); } static inline void writereg(unsigned int adr, u_char off, u_char data) { byteout(adr + off, data); } static inline void read_fifo(unsigned int adr, u_char * data, int size) { insb(adr, data, size); } static void write_fifo(unsigned int adr, u_char * data, int size) { outsb(adr, data, size); } /* Interface functions */ static u_char ReadISAC(struct IsdnCardState *cs, u_char offset) { return (readreg(cs->hw.avm.isac, offset)); } static void WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value) { writereg(cs->hw.avm.isac, offset, value); } static void ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size) { read_fifo(cs->hw.avm.isacfifo, data, size); } static void WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size) { write_fifo(cs->hw.avm.isacfifo, data, size); } static u_char ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset) { return (readreg(cs->hw.avm.hscx[hscx], offset)); } static void WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value) { writereg(cs->hw.avm.hscx[hscx], offset, value); } /* * fast interrupt HSCX stuff goes here */ #define READHSCX(cs, nr, reg) readreg(cs->hw.avm.hscx[nr], reg) #define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.avm.hscx[nr], reg, data) #define READHSCXFIFO(cs, nr, ptr, cnt) read_fifo(cs->hw.avm.hscxfifo[nr], ptr, cnt) #define WRITEHSCXFIFO(cs, nr, ptr, cnt) write_fifo(cs->hw.avm.hscxfifo[nr], ptr, cnt) #include "hscx_irq.c" static irqreturn_t avm_a1_interrupt(int intno, void *dev_id) { struct IsdnCardState *cs = dev_id; u_char val, sval; u_long flags; spin_lock_irqsave(&cs->lock, flags); while (((sval = bytein(cs->hw.avm.cfg_reg)) & 0xf) != 0x7) { if (!(sval & AVM_A1_STAT_TIMER)) { byteout(cs->hw.avm.cfg_reg, 0x1E); sval = bytein(cs->hw.avm.cfg_reg); } else if (cs->debug & L1_DEB_INTSTAT) debugl1(cs, "avm IntStatus %x", sval); if (!(sval & AVM_A1_STAT_HSCX)) { val = readreg(cs->hw.avm.hscx[1], HSCX_ISTA); if (val) hscx_int_main(cs, val); } if (!(sval & AVM_A1_STAT_ISAC)) { val = readreg(cs->hw.avm.isac, ISAC_ISTA); if (val) isac_interrupt(cs, val); } } writereg(cs->hw.avm.hscx[0], HSCX_MASK, 0xFF); writereg(cs->hw.avm.hscx[1], HSCX_MASK, 0xFF); writereg(cs->hw.avm.isac, ISAC_MASK, 0xFF); writereg(cs->hw.avm.isac, ISAC_MASK, 0x0); writereg(cs->hw.avm.hscx[0], HSCX_MASK, 0x0); writereg(cs->hw.avm.hscx[1], HSCX_MASK, 0x0); spin_unlock_irqrestore(&cs->lock, flags); return IRQ_HANDLED; } static inline void release_ioregs(struct IsdnCardState *cs, int mask) { release_region(cs->hw.avm.cfg_reg, 8); if (mask & 1) release_region(cs->hw.avm.isac + 32, 32); if (mask & 2) release_region(cs->hw.avm.isacfifo, 1); if (mask & 4) release_region(cs->hw.avm.hscx[0] + 32, 32); if (mask & 8) release_region(cs->hw.avm.hscxfifo[0], 1); if (mask & 0x10) release_region(cs->hw.avm.hscx[1] + 32, 32); if (mask & 0x20) release_region(cs->hw.avm.hscxfifo[1], 1); } static int AVM_card_msg(struct IsdnCardState *cs, int mt, void *arg) { u_long flags; switch (mt) { case CARD_RESET: return(0); case CARD_RELEASE: release_ioregs(cs, 0x3f); return(0); case CARD_INIT: spin_lock_irqsave(&cs->lock, flags); inithscxisac(cs, 1); byteout(cs->hw.avm.cfg_reg, 0x16); byteout(cs->hw.avm.cfg_reg, 0x1E); inithscxisac(cs, 2); spin_unlock_irqrestore(&cs->lock, flags); return(0); case CARD_TEST: return(0); } return(0); } int __devinit setup_avm_a1(struct IsdnCard *card) { u_char val; struct IsdnCardState *cs = card->cs; char tmp[64]; strcpy(tmp, avm_revision); printk(KERN_INFO "HiSax: AVM driver Rev. %s\n", HiSax_getrev(tmp)); if (cs->typ != ISDN_CTYPE_A1) return (0); cs->hw.avm.cfg_reg = card->para[1] + 0x1800; cs->hw.avm.isac = card->para[1] + 0x1400 - 0x20; cs->hw.avm.hscx[0] = card->para[1] + 0x400 - 0x20; cs->hw.avm.hscx[1] = card->para[1] + 0xc00 - 0x20; cs->hw.avm.isacfifo = card->para[1] + 0x1000; cs->hw.avm.hscxfifo[0] = card->para[1]; cs->hw.avm.hscxfifo[1] = card->para[1] + 0x800; cs->irq = card->para[0]; if (!request_region(cs->hw.avm.cfg_reg, 8, "avm cfg")) { printk(KERN_WARNING "HiSax: %s config port %x-%x already in use\n", CardType[card->typ], cs->hw.avm.cfg_reg, cs->hw.avm.cfg_reg + 8); return (0); } if (!request_region(cs->hw.avm.isac + 32, 32, "HiSax isac")) { printk(KERN_WARNING "HiSax: %s isac ports %x-%x already in use\n", CardType[cs->typ], cs->hw.avm.isac + 32, cs->hw.avm.isac + 64); release_ioregs(cs, 0); return (0); } if (!request_region(cs->hw.avm.isacfifo, 1, "HiSax isac fifo")) { printk(KERN_WARNING "HiSax: %s isac fifo port %x already in use\n", CardType[cs->typ], cs->hw.avm.isacfifo); release_ioregs(cs, 1); return (0); } if (!request_region(cs->hw.avm.hscx[0] + 32, 32, "HiSax hscx A")) { printk(KERN_WARNING "HiSax: %s hscx A ports %x-%x already in use\n", CardType[cs->typ], cs->hw.avm.hscx[0] + 32, cs->hw.avm.hscx[0] + 64); release_ioregs(cs, 3); return (0); } if (!request_region(cs->hw.avm.hscxfifo[0], 1, "HiSax hscx A fifo")) { printk(KERN_WARNING "HiSax: %s hscx A fifo port %x already in use\n", CardType[cs->typ], cs->hw.avm.hscxfifo[0]); release_ioregs(cs, 7); return (0); } if (!request_region(cs->hw.avm.hscx[1] + 32, 32, "HiSax hscx B")) { printk(KERN_WARNING "HiSax: %s hscx B ports %x-%x already in use\n", CardType[cs->typ], cs->hw.avm.hscx[1] + 32, cs->hw.avm.hscx[1] + 64); release_ioregs(cs, 0xf); return (0); } if (!request_region(cs->hw.avm.hscxfifo[1], 1, "HiSax hscx B fifo")) { printk(KERN_WARNING "HiSax: %s hscx B fifo port %x already in use\n", CardType[cs->typ], cs->hw.avm.hscxfifo[1]); release_ioregs(cs, 0x1f); return (0); } byteout(cs->hw.avm.cfg_reg, 0x0); HZDELAY(HZ / 5 + 1); byteout(cs->hw.avm.cfg_reg, 0x1); HZDELAY(HZ / 5 + 1); byteout(cs->hw.avm.cfg_reg, 0x0); HZDELAY(HZ / 5 + 1); val = cs->irq; if (val == 9) val = 2; byteout(cs->hw.avm.cfg_reg + 1, val); HZDELAY(HZ / 5 + 1); byteout(cs->hw.avm.cfg_reg, 0x0); HZDELAY(HZ / 5 + 1); val = bytein(cs->hw.avm.cfg_reg); printk(KERN_INFO "AVM A1: Byte at %x is %x\n", cs->hw.avm.cfg_reg, val); val = bytein(cs->hw.avm.cfg_reg + 3); printk(KERN_INFO "AVM A1: Byte at %x is %x\n", cs->hw.avm.cfg_reg + 3, val); val = bytein(cs->hw.avm.cfg_reg + 2); printk(KERN_INFO "AVM A1: Byte at %x is %x\n", cs->hw.avm.cfg_reg + 2, val); val = bytein(cs->hw.avm.cfg_reg); printk(KERN_INFO "AVM A1: Byte at %x is %x\n", cs->hw.avm.cfg_reg, val); printk(KERN_INFO "HiSax: %s config irq:%d cfg:0x%X\n", CardType[cs->typ], cs->irq, cs->hw.avm.cfg_reg); printk(KERN_INFO "HiSax: isac:0x%X/0x%X\n", cs->hw.avm.isac + 32, cs->hw.avm.isacfifo); printk(KERN_INFO "HiSax: hscx A:0x%X/0x%X hscx B:0x%X/0x%X\n", cs->hw.avm.hscx[0] + 32, cs->hw.avm.hscxfifo[0], cs->hw.avm.hscx[1] + 32, cs->hw.avm.hscxfifo[1]); 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; setup_isac(cs); cs->cardmsg = &AVM_card_msg; cs->irq_func = &avm_a1_interrupt; ISACVersion(cs, "AVM A1:"); if (HscxVersion(cs, "AVM A1:")) { printk(KERN_WARNING "AVM A1: wrong HSCX versions check IO address\n"); release_ioregs(cs, 0x3f); return (0); } return (1); }