/* $Id: nj_s.c,v 2.7.6.6 2001/09/23 22:24:50 kai Exp $ * * This software may be used and distributed according to the terms * of the GNU General Public License, incorporated herein by reference. * */ #include <linux/config.h> #include <linux/init.h> #include "hisax.h" #include "isac.h" #include "isdnl1.h" #include <linux/pci.h> #include <linux/interrupt.h> #include <linux/ppp_defs.h> #include "netjet.h" const char *NETjet_S_revision = "$Revision: 2.7.6.6 $"; static void nj_s_interrupt(int intno, void *dev_id, struct pt_regs *regs) { struct IsdnCardState *cs = dev_id; u8 val, sval; spin_lock(&cs->lock); 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); } } /* 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 */ { 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 */ } /* 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); } */ spin_unlock(&cs->lock); } static int nj_s_reset(struct IsdnCardState *cs) { 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 */ 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); return 0; } static int NETjet_S_card_msg(struct IsdnCardState *cs, int mt, void *arg) { return(0); } static void nj_s_init(struct IsdnCardState *cs) { inittiger(cs); initisac(cs); } static struct card_ops nj_s_ops = { .init = nj_s_init, .reset = nj_s_reset, .release = netjet_release, .irq_func = nj_s_interrupt, }; 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]; #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); #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); } /* 2001/10/04 Christoph Ersfeld, Formula-n Europe AG www.formula-n.com */ if ((dev_netjet->subsystem_vendor == 0x55) && (dev_netjet->subsystem_device == 0x02)) { printk(KERN_WARNING "Netjet: You tried to load this driver with an incompatible TigerJet-card\n"); printk(KERN_WARNING "Use type=41 for Formula-n enter:now ISDN PCI and compatible\n"); return(0); } /* end new code */ cs->hw.njet.pdev = dev_netjet; } 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; 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 */ 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"); } nj_s_reset(cs); cs->dc_hw_ops = &netjet_dc_ops; cs->cardmsg = &NETjet_S_card_msg; cs->irq_flags |= SA_SHIRQ; cs->card_ops = &nj_s_ops; ISACVersion(cs, "NETjet-S:"); return (1); }