/* $Id: saphir.c,v 1.10.2.4 2004/01/13 23:48:39 keil Exp $ * * low level stuff for HST Saphir 1 * * Author Karsten Keil * Copyright by Karsten Keil * * This software may be used and distributed according to the terms * of the GNU General Public License, incorporated herein by reference. * * Thanks to HST High Soft Tech GmbH * */ #include #include "hisax.h" #include "isac.h" #include "hscx.h" #include "isdnl1.h" static char *saphir_rev = "$Revision: 1.10.2.4 $"; #define byteout(addr, val) outb(val, addr) #define bytein(addr) inb(addr) #define ISAC_DATA 0 #define HSCX_DATA 1 #define ADDRESS_REG 2 #define IRQ_REG 3 #define SPARE_REG 4 #define RESET_REG 5 static inline u_char readreg(unsigned int ale, unsigned int adr, u_char off) { register u_char ret; byteout(ale, off); ret = bytein(adr); return (ret); } static inline void readfifo(unsigned int ale, unsigned int adr, u_char off, u_char *data, int size) { byteout(ale, off); insb(adr, data, size); } static inline void writereg(unsigned int ale, unsigned int adr, u_char off, u_char data) { byteout(ale, off); byteout(adr, data); } static inline void writefifo(unsigned int ale, unsigned int adr, u_char off, u_char *data, int size) { byteout(ale, off); outsb(adr, data, size); } /* Interface functions */ static u_char ReadISAC(struct IsdnCardState *cs, u_char offset) { return (readreg(cs->hw.saphir.ale, cs->hw.saphir.isac, offset)); } static void WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value) { writereg(cs->hw.saphir.ale, cs->hw.saphir.isac, offset, value); } static void ReadISACfifo(struct IsdnCardState *cs, u_char *data, int size) { readfifo(cs->hw.saphir.ale, cs->hw.saphir.isac, 0, data, size); } static void WriteISACfifo(struct IsdnCardState *cs, u_char *data, int size) { writefifo(cs->hw.saphir.ale, cs->hw.saphir.isac, 0, data, size); } static u_char ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset) { return (readreg(cs->hw.saphir.ale, cs->hw.saphir.hscx, offset + (hscx ? 0x40 : 0))); } static void WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value) { writereg(cs->hw.saphir.ale, cs->hw.saphir.hscx, offset + (hscx ? 0x40 : 0), value); } #define READHSCX(cs, nr, reg) readreg(cs->hw.saphir.ale, \ cs->hw.saphir.hscx, reg + (nr ? 0x40 : 0)) #define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.saphir.ale, \ cs->hw.saphir.hscx, reg + (nr ? 0x40 : 0), data) #define READHSCXFIFO(cs, nr, ptr, cnt) readfifo(cs->hw.saphir.ale, \ cs->hw.saphir.hscx, (nr ? 0x40 : 0), ptr, cnt) #define WRITEHSCXFIFO(cs, nr, ptr, cnt) writefifo(cs->hw.saphir.ale, \ cs->hw.saphir.hscx, (nr ? 0x40 : 0), ptr, cnt) #include "hscx_irq.c" static irqreturn_t saphir_interrupt(int intno, void *dev_id) { struct IsdnCardState *cs = dev_id; u_char val; u_long flags; spin_lock_irqsave(&cs->lock, flags); val = readreg(cs->hw.saphir.ale, cs->hw.saphir.hscx, HSCX_ISTA + 0x40); Start_HSCX: if (val) hscx_int_main(cs, val); val = readreg(cs->hw.saphir.ale, cs->hw.saphir.isac, ISAC_ISTA); Start_ISAC: if (val) isac_interrupt(cs, val); val = readreg(cs->hw.saphir.ale, cs->hw.saphir.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.saphir.ale, cs->hw.saphir.isac, ISAC_ISTA); if (val) { if (cs->debug & L1_DEB_ISAC) debugl1(cs, "ISAC IntStat after IntRoutine"); goto Start_ISAC; } /* Watchdog */ if (cs->hw.saphir.timer.function) mod_timer(&cs->hw.saphir.timer, jiffies + 1 * HZ); else printk(KERN_WARNING "saphir: Spurious timer!\n"); writereg(cs->hw.saphir.ale, cs->hw.saphir.hscx, HSCX_MASK, 0xFF); writereg(cs->hw.saphir.ale, cs->hw.saphir.hscx, HSCX_MASK + 0x40, 0xFF); writereg(cs->hw.saphir.ale, cs->hw.saphir.isac, ISAC_MASK, 0xFF); writereg(cs->hw.saphir.ale, cs->hw.saphir.isac, ISAC_MASK, 0); writereg(cs->hw.saphir.ale, cs->hw.saphir.hscx, HSCX_MASK, 0); writereg(cs->hw.saphir.ale, cs->hw.saphir.hscx, HSCX_MASK + 0x40, 0); spin_unlock_irqrestore(&cs->lock, flags); return IRQ_HANDLED; } static void SaphirWatchDog(struct IsdnCardState *cs) { u_long flags; spin_lock_irqsave(&cs->lock, flags); /* 5 sec WatchDog, so read at least every 4 sec */ cs->readisac(cs, ISAC_RBCH); spin_unlock_irqrestore(&cs->lock, flags); mod_timer(&cs->hw.saphir.timer, jiffies + 1 * HZ); } static void release_io_saphir(struct IsdnCardState *cs) { byteout(cs->hw.saphir.cfg_reg + IRQ_REG, 0xff); del_timer(&cs->hw.saphir.timer); cs->hw.saphir.timer.function = NULL; if (cs->hw.saphir.cfg_reg) release_region(cs->hw.saphir.cfg_reg, 6); } static int saphir_reset(struct IsdnCardState *cs) { u_char irq_val; switch (cs->irq) { case 5: irq_val = 0; break; case 3: irq_val = 1; break; case 11: irq_val = 2; break; case 12: irq_val = 3; break; case 15: irq_val = 4; break; default: printk(KERN_WARNING "HiSax: saphir wrong IRQ %d\n", cs->irq); return (1); } byteout(cs->hw.saphir.cfg_reg + IRQ_REG, irq_val); byteout(cs->hw.saphir.cfg_reg + RESET_REG, 1); mdelay(10); byteout(cs->hw.saphir.cfg_reg + RESET_REG, 0); mdelay(10); byteout(cs->hw.saphir.cfg_reg + IRQ_REG, irq_val); byteout(cs->hw.saphir.cfg_reg + SPARE_REG, 0x02); return (0); } static int saphir_card_msg(struct IsdnCardState *cs, int mt, void *arg) { u_long flags; switch (mt) { case CARD_RESET: spin_lock_irqsave(&cs->lock, flags); saphir_reset(cs); spin_unlock_irqrestore(&cs->lock, flags); return (0); case CARD_RELEASE: release_io_saphir(cs); return (0); case CARD_INIT: spin_lock_irqsave(&cs->lock, flags); inithscxisac(cs, 3); spin_unlock_irqrestore(&cs->lock, flags); return (0); case CARD_TEST: return (0); } return (0); } int __devinit setup_saphir(struct IsdnCard *card) { struct IsdnCardState *cs = card->cs; char tmp[64]; strcpy(tmp, saphir_rev); printk(KERN_INFO "HiSax: HST Saphir driver Rev. %s\n", HiSax_getrev(tmp)); if (cs->typ != ISDN_CTYPE_HSTSAPHIR) return (0); /* IO-Ports */ cs->hw.saphir.cfg_reg = card->para[1]; cs->hw.saphir.isac = card->para[1] + ISAC_DATA; cs->hw.saphir.hscx = card->para[1] + HSCX_DATA; cs->hw.saphir.ale = card->para[1] + ADDRESS_REG; cs->irq = card->para[0]; if (!request_region(cs->hw.saphir.cfg_reg, 6, "saphir")) { printk(KERN_WARNING "HiSax: HST Saphir config port %x-%x already in use\n", cs->hw.saphir.cfg_reg, cs->hw.saphir.cfg_reg + 5); return (0); } printk(KERN_INFO "HiSax: HST Saphir config irq:%d io:0x%X\n", cs->irq, cs->hw.saphir.cfg_reg); setup_isac(cs); cs->hw.saphir.timer.function = (void *) SaphirWatchDog; cs->hw.saphir.timer.data = (long) cs; init_timer(&cs->hw.saphir.timer); cs->hw.saphir.timer.expires = jiffies + 4 * HZ; add_timer(&cs->hw.saphir.timer); if (saphir_reset(cs)) { release_io_saphir(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 = &saphir_card_msg; cs->irq_func = &saphir_interrupt; ISACVersion(cs, "saphir:"); if (HscxVersion(cs, "saphir:")) { printk(KERN_WARNING "saphir: wrong HSCX versions check IO address\n"); release_io_saphir(cs); return (0); } return (1); }