From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- drivers/isdn/hisax/saphir.c | 300 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 300 insertions(+) create mode 100644 drivers/isdn/hisax/saphir.c (limited to 'drivers/isdn/hisax/saphir.c') diff --git a/drivers/isdn/hisax/saphir.c b/drivers/isdn/hisax/saphir.c new file mode 100644 index 000000000000..9e6d3d686cce --- /dev/null +++ b/drivers/isdn/hisax/saphir.c @@ -0,0 +1,300 @@ +/* $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" + +extern const char *CardType[]; +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 pt_regs *regs) +{ + 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); +} + +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 __init +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: %s config port %x-%x already in use\n", + CardType[card->typ], + cs->hw.saphir.cfg_reg, + cs->hw.saphir.cfg_reg + 5); + return (0); + } + + printk(KERN_INFO "HiSax: %s config irq:%d io:0x%X\n", + CardType[cs->typ], 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); +} -- cgit v1.2.1