/* $Id: nj_u.c,v 2.14.2.3 2004/01/13 14:31:26 keil Exp $ * * This software may be used and distributed according to the terms * of the GNU General Public License, incorporated herein by reference. * */ #include #include #include "hisax.h" #include "icc.h" #include "isdnl1.h" #include #include #include #include "netjet.h" const char *NETjet_U_revision = "$Revision: 2.14.2.3 $"; 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 irqreturn_t netjet_u_interrupt(int intno, void *dev_id, struct pt_regs *regs) { struct IsdnCardState *cs = dev_id; u_char val, sval; u_long flags; spin_lock_irqsave(&cs->lock, flags); if (!((sval = bytein(cs->hw.njet.base + NETJET_IRQSTAT1)) & NETJET_ISACIRQ)) { val = NETjet_ReadIC(cs, ICC_ISTA); if (cs->debug & L1_DEB_ISAC) debugl1(cs, "tiger: i1 %x %x", sval, val); if (val) { icc_interrupt(cs, val); NETjet_WriteIC(cs, ICC_MASK, 0xFF); NETjet_WriteIC(cs, ICC_MASK, 0x0); } } /* 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)) { spin_unlock_irqrestore(&cs->lock, flags); return IRQ_HANDLED; } cs->hw.njet.irqstat0 = sval; 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); } spin_unlock_irqrestore(&cs->lock, flags); return IRQ_HANDLED; } static void reset_netjet_u(struct IsdnCardState *cs) { cs->hw.njet.ctrl_reg = 0xff; /* Reset On */ byteout(cs->hw.njet.base + NETJET_CTRL, cs->hw.njet.ctrl_reg); mdelay(10); 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); mdelay(10); cs->hw.njet.auxd = 0xC0; cs->hw.njet.dmactrl = 0; byteout(cs->hw.njet.auxa, 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_U_card_msg(struct IsdnCardState *cs, int mt, void *arg) { u_long flags; switch (mt) { case CARD_RESET: spin_lock_irqsave(&cs->lock, flags); reset_netjet_u(cs); spin_unlock_irqrestore(&cs->lock, flags); return(0); case CARD_RELEASE: release_io_netjet(cs); return(0); case CARD_INIT: spin_lock_irqsave(&cs->lock, flags); inittiger(cs); reset_netjet_u(cs); clear_pending_icc_ints(cs); initicc(cs); /* Reenable all IRQ */ cs->writeisac(cs, ICC_MASK, 0); spin_unlock_irqrestore(&cs->lock, flags); return(0); case CARD_TEST: return(0); } return(0); } static struct pci_dev *dev_netjet __initdata = NULL; int __init setup_netjet_u(struct IsdnCard *card) { int bytecnt; struct IsdnCardState *cs = card->cs; char tmp[64]; #ifdef CONFIG_PCI #endif #ifdef __BIG_ENDIAN #error "not running on big endian machines now" #endif strcpy(tmp, NETjet_U_revision); printk(KERN_INFO "HiSax: Traverse Tech. NETspider-U driver Rev. %s\n", HiSax_getrev(tmp)); if (cs->typ != ISDN_CTYPE_NETJET_U) return(0); test_and_clear_bit(FLG_LOCK_ATOMIC, &cs->HW_Flags); #ifdef CONFIG_PCI for ( ;; ) { 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 "NETspider-U: 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 "NETspider-U: No IO-Adr for PCI card found\n"); return(0); } } else { printk(KERN_WARNING "NETspider-U: 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; mdelay(10); cs->hw.njet.ctrl_reg = 0xff; /* Reset On */ byteout(cs->hw.njet.base + NETJET_CTRL, cs->hw.njet.ctrl_reg); mdelay(10); cs->hw.njet.ctrl_reg = 0x00; /* Reset Off and status read clear */ byteout(cs->hw.njet.base + NETJET_CTRL, cs->hw.njet.ctrl_reg); mdelay(10); cs->hw.njet.auxd = 0xC0; cs->hw.njet.dmactrl = 0; byteout(cs->hw.njet.auxa, 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, ICC_RBCH ) >> 5 ) & 3 ) ) { case 3 : break; case 0 : printk( KERN_WARNING "NETspider-U: NETjet-S PCI card found\n" ); continue; default : printk( KERN_WARNING "NETspider-U: No PCI card found\n" ); return 0; } break; } #else printk(KERN_WARNING "NETspider-U: NO_PCI_BIOS\n"); printk(KERN_WARNING "NETspider-U: unable to config NETspider-U PCI\n"); return (0); #endif /* CONFIG_PCI */ bytecnt = 256; printk(KERN_INFO "NETspider-U: PCI card configured at %#lx IRQ %d\n", cs->hw.njet.base, cs->irq); if (!request_region(cs->hw.njet.base, bytecnt, "netspider-u isdn")) { 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); } setup_icc(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_U_card_msg; cs->irq_func = &netjet_u_interrupt; cs->irq_flags |= SA_SHIRQ; ICCVersion(cs, "NETspider-U:"); return (1); }