/* $Id: nj_s.c,v 1.1.4.1 2001/11/20 14:19:36 kai Exp $ * * This software may be used and distributed according to the terms * of the GNU General Public License, incorporated herein by reference. * */ #define __NO_VERSION__ #include #include #include "hisax.h" #include "isac.h" #include "isdnl1.h" #include #include #include #include "netjet.h" const char *NETjet_S_revision = "$Revision: 1.1.4.1 $"; static u_char dummyrr(struct IsdnCardState *cs, int chan, u_char off) { return(5); } static void dummywr(struct IsdnCardState *cs, int chan, u_char off, u_char value) { } static void netjet_s_interrupt(int intno, void *dev_id, struct pt_regs *regs) { struct IsdnCardState *cs = dev_id; u_char val, sval; long flags; if (!cs) { printk(KERN_WARNING "NETjet-S: Spurious interrupt!\n"); return; } if (!((sval = bytein(cs->hw.njet.base + NETJET_IRQSTAT1)) & NETJET_ISACIRQ)) { val = NETjet_ReadIC(cs, ISAC_ISTA); if (cs->debug & L1_DEB_ISAC) debugl1(cs, "tiger: i1 %x %x", sval, val); if (val) { isac_interrupt(cs, val); NETjet_WriteIC(cs, ISAC_MASK, 0xFF); NETjet_WriteIC(cs, ISAC_MASK, 0x0); } } save_flags(flags); cli(); /* start new code 13/07/00 GE */ /* set bits in sval to indicate which page is free */ if (inl(cs->hw.njet.base + NETJET_DMA_WRITE_ADR) < inl(cs->hw.njet.base + NETJET_DMA_WRITE_IRQ)) /* the 2nd write page is free */ sval = 0x08; else /* the 1st write page is free */ sval = 0x04; if (inl(cs->hw.njet.base + NETJET_DMA_READ_ADR) < inl(cs->hw.njet.base + NETJET_DMA_READ_IRQ)) /* the 2nd read page is free */ sval = sval | 0x02; else /* the 1st read page is free */ sval = sval | 0x01; if (sval != cs->hw.njet.last_is0) /* we have a DMA interrupt */ { if (test_and_set_bit(FLG_LOCK_ATOMIC, &cs->HW_Flags)) { restore_flags(flags); return; } cs->hw.njet.irqstat0 = sval; restore_flags(flags); if ((cs->hw.njet.irqstat0 & NETJET_IRQM0_READ) != (cs->hw.njet.last_is0 & NETJET_IRQM0_READ)) /* we have a read dma int */ read_tiger(cs); if ((cs->hw.njet.irqstat0 & NETJET_IRQM0_WRITE) != (cs->hw.njet.last_is0 & NETJET_IRQM0_WRITE)) /* we have a write dma int */ write_tiger(cs); /* end new code 13/07/00 GE */ test_and_clear_bit(FLG_LOCK_ATOMIC, &cs->HW_Flags); } else restore_flags(flags); /* if (!testcnt--) { cs->hw.njet.dmactrl = 0; byteout(cs->hw.njet.base + NETJET_DMACTRL, cs->hw.njet.dmactrl); byteout(cs->hw.njet.base + NETJET_IRQMASK0, 0); } */ } static void reset_netjet_s(struct IsdnCardState *cs) { long flags; save_flags(flags); sti(); cs->hw.njet.ctrl_reg = 0xff; /* Reset On */ byteout(cs->hw.njet.base + NETJET_CTRL, cs->hw.njet.ctrl_reg); set_current_state(TASK_UNINTERRUPTIBLE); schedule_timeout((10*HZ)/1000); /* Timeout 10ms */ cs->hw.njet.ctrl_reg = 0x40; /* Reset Off and status read clear */ /* now edge triggered for TJ320 GE 13/07/00 */ byteout(cs->hw.njet.base + NETJET_CTRL, cs->hw.njet.ctrl_reg); set_current_state(TASK_UNINTERRUPTIBLE); schedule_timeout((10*HZ)/1000); /* Timeout 10ms */ restore_flags(flags); cs->hw.njet.auxd = 0; cs->hw.njet.dmactrl = 0; byteout(cs->hw.njet.base + NETJET_AUXCTRL, ~NETJET_ISACIRQ); byteout(cs->hw.njet.base + NETJET_IRQMASK1, NETJET_ISACIRQ); byteout(cs->hw.njet.auxa, cs->hw.njet.auxd); } static int NETjet_S_card_msg(struct IsdnCardState *cs, int mt, void *arg) { switch (mt) { case CARD_RESET: reset_netjet_s(cs); return(0); case CARD_RELEASE: release_io_netjet(cs); return(0); case CARD_INIT: inittiger(cs); clear_pending_isac_ints(cs); initisac(cs); /* Reenable all IRQ */ cs->writeisac(cs, ISAC_MASK, 0); return(0); case CARD_TEST: return(0); } return(0); } static struct pci_dev *dev_netjet __initdata = NULL; int __init setup_netjet_s(struct IsdnCard *card) { int bytecnt; struct IsdnCardState *cs = card->cs; char tmp[64]; long flags; #ifdef __BIG_ENDIAN #error "not running on big endian machines now" #endif strcpy(tmp, NETjet_S_revision); printk(KERN_INFO "HiSax: Traverse Tech. NETjet-S driver Rev. %s\n", HiSax_getrev(tmp)); if (cs->typ != ISDN_CTYPE_NETJET_S) return(0); test_and_clear_bit(FLG_LOCK_ATOMIC, &cs->HW_Flags); #if CONFIG_PCI for ( ;; ) { if (!pci_present()) { printk(KERN_ERR "Netjet: no PCI bus present\n"); return(0); } if ((dev_netjet = pci_find_device(PCI_VENDOR_ID_TIGERJET, PCI_DEVICE_ID_TIGERJET_300, dev_netjet))) { if (pci_enable_device(dev_netjet)) return(0); pci_set_master(dev_netjet); cs->irq = dev_netjet->irq; if (!cs->irq) { printk(KERN_WARNING "NETjet-S: No IRQ for PCI card found\n"); return(0); } cs->hw.njet.base = pci_resource_start(dev_netjet, 0); if (!cs->hw.njet.base) { printk(KERN_WARNING "NETjet-S: No IO-Adr for PCI card found\n"); return(0); } } else { printk(KERN_WARNING "NETjet-S: No PCI card found\n"); return(0); } cs->hw.njet.auxa = cs->hw.njet.base + NETJET_AUXDATA; cs->hw.njet.isac = cs->hw.njet.base | NETJET_ISAC_OFF; save_flags(flags); sti(); cs->hw.njet.ctrl_reg = 0xff; /* Reset On */ byteout(cs->hw.njet.base + NETJET_CTRL, cs->hw.njet.ctrl_reg); set_current_state(TASK_UNINTERRUPTIBLE); schedule_timeout((10*HZ)/1000); /* Timeout 10ms */ cs->hw.njet.ctrl_reg = 0x00; /* Reset Off and status read clear */ byteout(cs->hw.njet.base + NETJET_CTRL, cs->hw.njet.ctrl_reg); set_current_state(TASK_UNINTERRUPTIBLE); schedule_timeout((10*HZ)/1000); /* Timeout 10ms */ restore_flags(flags); cs->hw.njet.auxd = 0xC0; cs->hw.njet.dmactrl = 0; byteout(cs->hw.njet.base + NETJET_AUXCTRL, ~NETJET_ISACIRQ); byteout(cs->hw.njet.base + NETJET_IRQMASK1, NETJET_ISACIRQ); byteout(cs->hw.njet.auxa, cs->hw.njet.auxd); switch ( ( ( NETjet_ReadIC( cs, ISAC_RBCH ) >> 5 ) & 3 ) ) { case 0 : break; case 3 : printk( KERN_WARNING "NETjet-S: NETspider-U PCI card found\n" ); continue; default : printk( KERN_WARNING "NETjet-S: No PCI card found\n" ); return 0; } break; } #else printk(KERN_WARNING "NETjet-S: NO_PCI_BIOS\n"); printk(KERN_WARNING "NETjet-S: unable to config NETJET-S PCI\n"); return (0); #endif /* CONFIG_PCI */ bytecnt = 256; printk(KERN_INFO "NETjet-S: PCI card configured at %#lx IRQ %d\n", cs->hw.njet.base, cs->irq); if (check_region(cs->hw.njet.base, bytecnt)) { printk(KERN_WARNING "HiSax: %s config port %#lx-%#lx already in use\n", CardType[card->typ], cs->hw.njet.base, cs->hw.njet.base + bytecnt); return (0); } else { request_region(cs->hw.njet.base, bytecnt, "netjet-s isdn"); } reset_netjet_s(cs); cs->readisac = &NETjet_ReadIC; cs->writeisac = &NETjet_WriteIC; cs->readisacfifo = &NETjet_ReadICfifo; cs->writeisacfifo = &NETjet_WriteICfifo; cs->BC_Read_Reg = &dummyrr; cs->BC_Write_Reg = &dummywr; cs->BC_Send_Data = &netjet_fill_dma; cs->cardmsg = &NETjet_S_card_msg; cs->irq_func = &netjet_s_interrupt; cs->irq_flags |= SA_SHIRQ; ISACVersion(cs, "NETjet-S:"); return (1); }