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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 | /* $Id: bkm_a4t.c,v 1.22.2.4 2004/01/14 16:04:48 keil Exp $ * * low level stuff for T-Berkom A4T * * Author Roland Klabunde * Copyright by Roland Klabunde <R.Klabunde@Berkom.de> * * This software may be used and distributed according to the terms * of the GNU General Public License, incorporated herein by reference. * */ #include <linux/init.h> #include "hisax.h" #include "isac.h" #include "hscx.h" #include "jade.h" #include "isdnl1.h" #include <linux/pci.h> #include "bkm_ax.h" static const char *bkm_a4t_revision = "$Revision: 1.22.2.4 $"; static inline u_char readreg(unsigned int ale, unsigned long adr, u_char off) { register u_int ret; unsigned int *po = (unsigned int *) adr; /* Postoffice */ *po = (GCS_2 | PO_WRITE | off); __WAITI20__(po); *po = (ale | PO_READ); __WAITI20__(po); ret = *po; return ((unsigned char) ret); } static inline void readfifo(unsigned int ale, unsigned long adr, u_char off, u_char * data, int size) { int i; for (i = 0; i < size; i++) *data++ = readreg(ale, adr, off); } static inline void writereg(unsigned int ale, unsigned long adr, u_char off, u_char data) { unsigned int *po = (unsigned int *) adr; /* Postoffice */ *po = (GCS_2 | PO_WRITE | off); __WAITI20__(po); *po = (ale | PO_WRITE | data); __WAITI20__(po); } static inline void writefifo(unsigned int ale, unsigned long adr, u_char off, u_char * data, int size) { int i; for (i = 0; i < size; i++) writereg(ale, adr, off, *data++); } /* Interface functions */ static u_char ReadISAC(struct IsdnCardState *cs, u_char offset) { return (readreg(cs->hw.ax.isac_ale, cs->hw.ax.isac_adr, offset)); } static void WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value) { writereg(cs->hw.ax.isac_ale, cs->hw.ax.isac_adr, offset, value); } static void ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size) { readfifo(cs->hw.ax.isac_ale, cs->hw.ax.isac_adr, 0, data, size); } static void WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size) { writefifo(cs->hw.ax.isac_ale, cs->hw.ax.isac_adr, 0, data, size); } static u_char ReadJADE(struct IsdnCardState *cs, int jade, u_char offset) { return (readreg(cs->hw.ax.jade_ale, cs->hw.ax.jade_adr, offset + (jade == -1 ? 0 : (jade ? 0xC0 : 0x80)))); } static void WriteJADE(struct IsdnCardState *cs, int jade, u_char offset, u_char value) { writereg(cs->hw.ax.jade_ale, cs->hw.ax.jade_adr, offset + (jade == -1 ? 0 : (jade ? 0xC0 : 0x80)), value); } /* * fast interrupt JADE stuff goes here */ #define READJADE(cs, nr, reg) readreg(cs->hw.ax.jade_ale,\ cs->hw.ax.jade_adr, reg + (nr == -1 ? 0 : (nr ? 0xC0 : 0x80))) #define WRITEJADE(cs, nr, reg, data) writereg(cs->hw.ax.jade_ale,\ cs->hw.ax.jade_adr, reg + (nr == -1 ? 0 : (nr ? 0xC0 : 0x80)), data) #define READJADEFIFO(cs, nr, ptr, cnt) readfifo(cs->hw.ax.jade_ale,\ cs->hw.ax.jade_adr, (nr == -1 ? 0 : (nr ? 0xC0 : 0x80)), ptr, cnt) #define WRITEJADEFIFO(cs, nr, ptr, cnt) writefifo( cs->hw.ax.jade_ale,\ cs->hw.ax.jade_adr, (nr == -1 ? 0 : (nr ? 0xC0 : 0x80)), ptr, cnt) #include "jade_irq.c" static irqreturn_t bkm_interrupt(int intno, void *dev_id) { struct IsdnCardState *cs = dev_id; u_char val = 0; u_long flags; I20_REGISTER_FILE *pI20_Regs; spin_lock_irqsave(&cs->lock, flags); pI20_Regs = (I20_REGISTER_FILE *) (cs->hw.ax.base); /* ISDN interrupt pending? */ if (pI20_Regs->i20IntStatus & intISDN) { /* Reset the ISDN interrupt */ pI20_Regs->i20IntStatus = intISDN; /* Disable ISDN interrupt */ pI20_Regs->i20IntCtrl &= ~intISDN; /* Channel A first */ val = readreg(cs->hw.ax.jade_ale, cs->hw.ax.jade_adr, jade_HDLC_ISR + 0x80); if (val) { jade_int_main(cs, val, 0); } /* Channel B */ val = readreg(cs->hw.ax.jade_ale, cs->hw.ax.jade_adr, jade_HDLC_ISR + 0xC0); if (val) { jade_int_main(cs, val, 1); } /* D-Channel */ val = readreg(cs->hw.ax.isac_ale, cs->hw.ax.isac_adr, ISAC_ISTA); if (val) { isac_interrupt(cs, val); } /* Reenable ISDN interrupt */ pI20_Regs->i20IntCtrl |= intISDN; spin_unlock_irqrestore(&cs->lock, flags); return IRQ_HANDLED; } else { spin_unlock_irqrestore(&cs->lock, flags); return IRQ_NONE; } } static void release_io_bkm(struct IsdnCardState *cs) { if (cs->hw.ax.base) { iounmap((void *) cs->hw.ax.base); cs->hw.ax.base = 0; } } static void enable_bkm_int(struct IsdnCardState *cs, unsigned bEnable) { if (cs->typ == ISDN_CTYPE_BKM_A4T) { I20_REGISTER_FILE *pI20_Regs = (I20_REGISTER_FILE *) (cs->hw.ax.base); if (bEnable) pI20_Regs->i20IntCtrl |= (intISDN | intPCI); else /* CAUTION: This disables the video capture driver too */ pI20_Regs->i20IntCtrl &= ~(intISDN | intPCI); } } static void reset_bkm(struct IsdnCardState *cs) { if (cs->typ == ISDN_CTYPE_BKM_A4T) { I20_REGISTER_FILE *pI20_Regs = (I20_REGISTER_FILE *) (cs->hw.ax.base); /* Issue the I20 soft reset */ pI20_Regs->i20SysControl = 0xFF; /* all in */ mdelay(10); /* Remove the soft reset */ pI20_Regs->i20SysControl = sysRESET | 0xFF; mdelay(10); /* Set our configuration */ pI20_Regs->i20SysControl = sysRESET | sysCFG; /* Issue ISDN reset */ pI20_Regs->i20GuestControl = guestWAIT_CFG | g_A4T_JADE_RES | g_A4T_ISAR_RES | g_A4T_ISAC_RES | g_A4T_JADE_BOOTR | g_A4T_ISAR_BOOTR; mdelay(10); /* Remove RESET state from ISDN */ pI20_Regs->i20GuestControl &= ~(g_A4T_ISAC_RES | g_A4T_JADE_RES | g_A4T_ISAR_RES); mdelay(10); } } static int BKM_card_msg(struct IsdnCardState *cs, int mt, void *arg) { u_long flags; switch (mt) { case CARD_RESET: /* Disable ints */ spin_lock_irqsave(&cs->lock, flags); enable_bkm_int(cs, 0); reset_bkm(cs); spin_unlock_irqrestore(&cs->lock, flags); return (0); case CARD_RELEASE: /* Sanity */ spin_lock_irqsave(&cs->lock, flags); enable_bkm_int(cs, 0); reset_bkm(cs); spin_unlock_irqrestore(&cs->lock, flags); release_io_bkm(cs); return (0); case CARD_INIT: spin_lock_irqsave(&cs->lock, flags); clear_pending_isac_ints(cs); clear_pending_jade_ints(cs); initisac(cs); initjade(cs); /* Enable ints */ enable_bkm_int(cs, 1); spin_unlock_irqrestore(&cs->lock, flags); return (0); case CARD_TEST: return (0); } return (0); } static int __devinit a4t_pci_probe(struct pci_dev *dev_a4t, struct IsdnCardState *cs, u_int *found, u_int *pci_memaddr) { u16 sub_sys; u16 sub_vendor; sub_vendor = dev_a4t->subsystem_vendor; sub_sys = dev_a4t->subsystem_device; if ((sub_sys == PCI_DEVICE_ID_BERKOM_A4T) && (sub_vendor == PCI_VENDOR_ID_BERKOM)) { if (pci_enable_device(dev_a4t)) return (0); /* end loop & function */ *found = 1; *pci_memaddr = pci_resource_start(dev_a4t, 0); cs->irq = dev_a4t->irq; return (1); /* end loop */ } return (-1); /* continue looping */ } static int __devinit a4t_cs_init(struct IsdnCard *card, struct IsdnCardState *cs, u_int pci_memaddr) { I20_REGISTER_FILE *pI20_Regs; if (!cs->irq) { /* IRQ range check ?? */ printk(KERN_WARNING "HiSax: Telekom A4T: No IRQ\n"); return (0); } cs->hw.ax.base = (long) ioremap(pci_memaddr, 4096); /* Check suspecious address */ pI20_Regs = (I20_REGISTER_FILE *) (cs->hw.ax.base); if ((pI20_Regs->i20IntStatus & 0x8EFFFFFF) != 0) { printk(KERN_WARNING "HiSax: Telekom A4T address " "%lx-%lx suspicious\n", cs->hw.ax.base, cs->hw.ax.base + 4096); iounmap((void *) cs->hw.ax.base); cs->hw.ax.base = 0; return (0); } cs->hw.ax.isac_adr = cs->hw.ax.base + PO_OFFSET; cs->hw.ax.jade_adr = cs->hw.ax.base + PO_OFFSET; cs->hw.ax.isac_ale = GCS_1; cs->hw.ax.jade_ale = GCS_3; printk(KERN_INFO "HiSax: Telekom A4T: Card configured at " "0x%lX IRQ %d\n", cs->hw.ax.base, cs->irq); setup_isac(cs); cs->readisac = &ReadISAC; cs->writeisac = &WriteISAC; cs->readisacfifo = &ReadISACfifo; cs->writeisacfifo = &WriteISACfifo; cs->BC_Read_Reg = &ReadJADE; cs->BC_Write_Reg = &WriteJADE; cs->BC_Send_Data = &jade_fill_fifo; cs->cardmsg = &BKM_card_msg; cs->irq_func = &bkm_interrupt; cs->irq_flags |= IRQF_SHARED; ISACVersion(cs, "Telekom A4T:"); /* Jade version */ JadeVersion(cs, "Telekom A4T:"); return (1); } static struct pci_dev *dev_a4t __devinitdata = NULL; int __devinit setup_bkm_a4t(struct IsdnCard *card) { struct IsdnCardState *cs = card->cs; char tmp[64]; u_int pci_memaddr = 0, found = 0; int ret; strcpy(tmp, bkm_a4t_revision); printk(KERN_INFO "HiSax: T-Berkom driver Rev. %s\n", HiSax_getrev(tmp)); if (cs->typ == ISDN_CTYPE_BKM_A4T) { cs->subtyp = BKM_A4T; } else return (0); while ((dev_a4t = hisax_find_pci_device(PCI_VENDOR_ID_ZORAN, PCI_DEVICE_ID_ZORAN_36120, dev_a4t))) { ret = a4t_pci_probe(dev_a4t, cs, &found, &pci_memaddr); if (!ret) return (0); if (ret > 0) break; } if (!found) { printk(KERN_WARNING "HiSax: Telekom A4T: Card not found\n"); return (0); } if (!pci_memaddr) { printk(KERN_WARNING "HiSax: Telekom A4T: " "No Memory base address\n"); return (0); } return a4t_cs_init(card, cs, pci_memaddr); } |