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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 | /* $Id: nj_u.c,v 2.8.6.6 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. * */ #define __NO_VERSION__ #include <linux/config.h> #include <linux/init.h> #include "hisax.h" #include "icc.h" #include "isdnl1.h" #include <linux/pci.h> #include <linux/interrupt.h> #include <linux/ppp_defs.h> #include "netjet.h" const char *NETjet_U_revision = "$Revision: 2.8.6.6 $"; 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_u_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 "NETspider-U: Spurious interrupt!\n"); return; } 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); } } 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_u(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 = 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) { switch (mt) { case CARD_RESET: reset_netjet_u(cs); return(0); case CARD_RELEASE: release_io_netjet(cs); return(0); case CARD_INIT: inittiger(cs); clear_pending_icc_ints(cs); initicc(cs); /* Reenable all IRQ */ cs->writeisac(cs, ICC_MASK, 0); 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]; long flags; #if 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); #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 "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); } cs->hw.njet.pdev = dev_netjet; } 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; 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.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 (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, "netspider-u isdn"); } reset_netjet_u(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); } |