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[/] [or1k/] [trunk/] [rc203soc/] [sw/] [uClinux/] [drivers/] [isdn/] [hisax/] [mic.c] - Rev 1772
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/* $Id: mic.c,v 1.1 2005-12-20 10:17:01 jcastillo Exp $ * mic.c low level stuff for mic cards * * Copyright (C) 1997 * * Author Stephan von Krawczynski <skraw@ithnet.com> * * * $Log: not supported by cvs2svn $ * Revision 1.1.1.1 2001/09/10 07:44:18 simons * Initial import * * Revision 1.1.1.1 2001/07/02 17:58:32 simons * Initial revision * * Revision 1.1.2.5 1998/04/08 21:58:43 keil * New init code * * Revision 1.1.2.4 1998/02/17 15:39:20 keil * fix reset problem * * Revision 1.1.2.3 1998/01/27 22:37:25 keil * fast io * * Revision 1.1.2.2 1997/11/15 18:50:54 keil * new common init function * * Revision 1.1.2.1 1997/10/17 22:10:54 keil * new files on 2.0 * * */ #define __NO_VERSION__ #include "hisax.h" #include "isac.h" #include "hscx.h" #include "isdnl1.h" extern const char *CardType[]; const char *mic_revision = "$Revision: 1.1 $"; #define byteout(addr,val) outb(val,addr) #define bytein(addr) inb(addr) #define MIC_ISAC 2 #define MIC_HSCX 1 #define MIC_ADR 7 /* CARD_ADR (Write) */ #define MIC_RESET 0x3 /* same as DOS driver */ static inline u_char readreg(unsigned int ale, unsigned int adr, u_char off) { register u_char ret; long flags; save_flags(flags); cli(); byteout(ale, off); ret = bytein(adr); restore_flags(flags); return (ret); } static inline void readfifo(unsigned int ale, unsigned int adr, u_char off, u_char * data, int size) { /* fifo read without cli because it's allready done */ byteout(ale, off); insb(adr, data, size); } static inline void writereg(unsigned int ale, unsigned int adr, u_char off, u_char data) { long flags; save_flags(flags); cli(); byteout(ale, off); byteout(adr, data); restore_flags(flags); } static inline void writefifo(unsigned int ale, unsigned int adr, u_char off, u_char * data, int size) { /* fifo write without cli because it's allready done */ byteout(ale, off); outsb(adr, data, size); } /* Interface functions */ static u_char ReadISAC(struct IsdnCardState *cs, u_char offset) { return (readreg(cs->hw.mic.adr, cs->hw.mic.isac, offset)); } static void WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value) { writereg(cs->hw.mic.adr, cs->hw.mic.isac, offset, value); } static void ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size) { readfifo(cs->hw.mic.adr, cs->hw.mic.isac, 0, data, size); } static void WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size) { writefifo(cs->hw.mic.adr, cs->hw.mic.isac, 0, data, size); } static u_char ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset) { return (readreg(cs->hw.mic.adr, cs->hw.mic.hscx, offset + (hscx ? 0x40 : 0))); } static void WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value) { writereg(cs->hw.mic.adr, cs->hw.mic.hscx, offset + (hscx ? 0x40 : 0), value); } /* * fast interrupt HSCX stuff goes here */ #define READHSCX(cs, nr, reg) readreg(cs->hw.mic.adr, \ cs->hw.mic.hscx, reg + (nr ? 0x40 : 0)) #define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.mic.adr, \ cs->hw.mic.hscx, reg + (nr ? 0x40 : 0), data) #define READHSCXFIFO(cs, nr, ptr, cnt) readfifo(cs->hw.mic.adr, \ cs->hw.mic.hscx, (nr ? 0x40 : 0), ptr, cnt) #define WRITEHSCXFIFO(cs, nr, ptr, cnt) writefifo(cs->hw.mic.adr, \ cs->hw.mic.hscx, (nr ? 0x40 : 0), ptr, cnt) #include "hscx_irq.c" static void mic_interrupt(int intno, void *dev_id, struct pt_regs *regs) { struct IsdnCardState *cs = dev_id; u_char val, stat = 0; if (!cs) { printk(KERN_WARNING "mic: Spurious interrupt!\n"); return; } val = readreg(cs->hw.mic.adr, cs->hw.mic.hscx, HSCX_ISTA + 0x40); Start_HSCX: if (val) { hscx_int_main(cs, val); stat |= 1; } val = readreg(cs->hw.mic.adr, cs->hw.mic.isac, ISAC_ISTA); Start_ISAC: if (val) { isac_interrupt(cs, val); stat |= 2; } val = readreg(cs->hw.mic.adr, cs->hw.mic.hscx, HSCX_ISTA + 0x40); if (val) { if (cs->debug & L1_DEB_HSCX) debugl1(cs, "HSCX IntStat after IntRoutine"); goto Start_HSCX; } val = readreg(cs->hw.mic.adr, cs->hw.mic.isac, ISAC_ISTA); if (val) { if (cs->debug & L1_DEB_ISAC) debugl1(cs, "ISAC IntStat after IntRoutine"); goto Start_ISAC; } if (stat & 1) { writereg(cs->hw.mic.adr, cs->hw.mic.hscx, HSCX_MASK, 0xFF); writereg(cs->hw.mic.adr, cs->hw.mic.hscx, HSCX_MASK + 0x40, 0xFF); writereg(cs->hw.mic.adr, cs->hw.mic.hscx, HSCX_MASK, 0x0); writereg(cs->hw.mic.adr, cs->hw.mic.hscx, HSCX_MASK + 0x40, 0x0); } if (stat & 2) { writereg(cs->hw.mic.adr, cs->hw.mic.isac, ISAC_MASK, 0xFF); writereg(cs->hw.mic.adr, cs->hw.mic.isac, ISAC_MASK, 0x0); } } void release_io_mic(struct IsdnCardState *cs) { int bytecnt = 8; if (cs->hw.mic.cfg_reg) release_region(cs->hw.mic.cfg_reg, bytecnt); } static int mic_card_msg(struct IsdnCardState *cs, int mt, void *arg) { switch (mt) { case CARD_RESET: return(0); case CARD_RELEASE: release_io_mic(cs); return(0); case CARD_SETIRQ: return(request_irq(cs->irq, &mic_interrupt, I4L_IRQ_FLAG, "HiSax", cs)); case CARD_INIT: inithscx(cs); /* /RTSA := ISAC RST */ inithscxisac(cs, 3); return(0); case CARD_TEST: return(0); } return(0); } __initfunc(int setup_mic(struct IsdnCard *card)) { int bytecnt; struct IsdnCardState *cs = card->cs; char tmp[64]; strcpy(tmp, mic_revision); printk(KERN_INFO "HiSax: mic driver Rev. %s\n", HiSax_getrev(tmp)); if (cs->typ != ISDN_CTYPE_MIC) return (0); bytecnt = 8; cs->hw.mic.cfg_reg = card->para[1]; cs->irq = card->para[0]; cs->hw.mic.adr = cs->hw.mic.cfg_reg + MIC_ADR; cs->hw.mic.isac = cs->hw.mic.cfg_reg + MIC_ISAC; cs->hw.mic.hscx = cs->hw.mic.cfg_reg + MIC_HSCX; if (check_region((cs->hw.mic.cfg_reg), bytecnt)) { printk(KERN_WARNING "HiSax: %s config port %x-%x already in use\n", CardType[card->typ], cs->hw.mic.cfg_reg, cs->hw.mic.cfg_reg + bytecnt); return (0); } else { request_region(cs->hw.mic.cfg_reg, bytecnt, "mic isdn"); } printk(KERN_INFO "mic: defined at 0x%x IRQ %d\n", cs->hw.mic.cfg_reg, cs->irq); 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 = &mic_card_msg; ISACVersion(cs, "mic:"); if (HscxVersion(cs, "mic:")) { printk(KERN_WARNING "mic: wrong HSCX versions check IO address\n"); release_io_mic(cs); return (0); } return (1); }
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