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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 | /* $Id: saphir.c,v 1.4 1999/09/04 06:20:06 keil Exp $ * saphir.c low level stuff for HST Saphir 1 * * Author Karsten Keil (keil@isdn4linux.de) * * Thanks to HST High Soft Tech GmbH * * * $Log: saphir.c,v $ * Revision 1.4 1999/09/04 06:20:06 keil * Changes from kernel set_current_state() * * Revision 1.3 1999/07/12 21:05:26 keil * fix race in IRQ handling * added watchdog for lost IRQs * * Revision 1.2 1999/07/01 08:07:55 keil * Initial version * * */ #define __NO_VERSION__ #include "hisax.h" #include "isac.h" #include "hscx.h" #include "isdnl1.h" extern const char *CardType[]; static char *saphir_rev = "$Revision: 1.4 $"; #define byteout(addr,val) outb(val,addr) #define bytein(addr) inb(addr) #define ISAC_DATA 0 #define HSCX_DATA 1 #define ADDRESS_REG 2 #define IRQ_REG 3 #define SPARE_REG 4 #define RESET_REG 5 static inline u_char readreg(unsigned int ale, unsigned int adr, u_char off) { register u_char ret; long flags; save_flags(flags); cli(); byteout(ale, off); ret = bytein(adr); restore_flags(flags); return (ret); } static inline void readfifo(unsigned int ale, unsigned int adr, u_char off, u_char * data, int size) { /* fifo read without cli because it's allready done */ byteout(ale, off); insb(adr, data, size); } static inline void writereg(unsigned int ale, unsigned int adr, u_char off, u_char data) { long flags; save_flags(flags); cli(); byteout(ale, off); byteout(adr, data); restore_flags(flags); } static inline void writefifo(unsigned int ale, unsigned int adr, u_char off, u_char * data, int size) { /* fifo write without cli because it's allready done */ byteout(ale, off); outsb(adr, data, size); } /* Interface functions */ static u_char ReadISAC(struct IsdnCardState *cs, u_char offset) { return (readreg(cs->hw.saphir.ale, cs->hw.saphir.isac, offset)); } static void WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value) { writereg(cs->hw.saphir.ale, cs->hw.saphir.isac, offset, value); } static void ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size) { readfifo(cs->hw.saphir.ale, cs->hw.saphir.isac, 0, data, size); } static void WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size) { writefifo(cs->hw.saphir.ale, cs->hw.saphir.isac, 0, data, size); } static u_char ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset) { return (readreg(cs->hw.saphir.ale, cs->hw.saphir.hscx, offset + (hscx ? 0x40 : 0))); } static void WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value) { writereg(cs->hw.saphir.ale, cs->hw.saphir.hscx, offset + (hscx ? 0x40 : 0), value); } #define READHSCX(cs, nr, reg) readreg(cs->hw.saphir.ale, \ cs->hw.saphir.hscx, reg + (nr ? 0x40 : 0)) #define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.saphir.ale, \ cs->hw.saphir.hscx, reg + (nr ? 0x40 : 0), data) #define READHSCXFIFO(cs, nr, ptr, cnt) readfifo(cs->hw.saphir.ale, \ cs->hw.saphir.hscx, (nr ? 0x40 : 0), ptr, cnt) #define WRITEHSCXFIFO(cs, nr, ptr, cnt) writefifo(cs->hw.saphir.ale, \ cs->hw.saphir.hscx, (nr ? 0x40 : 0), ptr, cnt) #include "hscx_irq.c" static void saphir_interrupt(int intno, void *dev_id, struct pt_regs *regs) { struct IsdnCardState *cs = dev_id; u_char val; if (!cs) { printk(KERN_WARNING "saphir: Spurious interrupt!\n"); return; } val = readreg(cs->hw.saphir.ale, cs->hw.saphir.hscx, HSCX_ISTA + 0x40); Start_HSCX: if (val) hscx_int_main(cs, val); val = readreg(cs->hw.saphir.ale, cs->hw.saphir.isac, ISAC_ISTA); Start_ISAC: if (val) isac_interrupt(cs, val); val = readreg(cs->hw.saphir.ale, cs->hw.saphir.hscx, HSCX_ISTA + 0x40); if (val) { if (cs->debug & L1_DEB_HSCX) debugl1(cs, "HSCX IntStat after IntRoutine"); goto Start_HSCX; } val = readreg(cs->hw.saphir.ale, cs->hw.saphir.isac, ISAC_ISTA); if (val) { if (cs->debug & L1_DEB_ISAC) debugl1(cs, "ISAC IntStat after IntRoutine"); goto Start_ISAC; } /* Watchdog */ if (cs->hw.saphir.timer.function) { del_timer(&cs->hw.saphir.timer); cs->hw.saphir.timer.expires = jiffies + 1*HZ; add_timer(&cs->hw.saphir.timer); } else printk(KERN_WARNING "saphir: Spurious timer!\n"); writereg(cs->hw.saphir.ale, cs->hw.saphir.hscx, HSCX_MASK, 0xFF); writereg(cs->hw.saphir.ale, cs->hw.saphir.hscx, HSCX_MASK + 0x40, 0xFF); writereg(cs->hw.saphir.ale, cs->hw.saphir.isac, ISAC_MASK, 0xFF); writereg(cs->hw.saphir.ale, cs->hw.saphir.isac, ISAC_MASK, 0); writereg(cs->hw.saphir.ale, cs->hw.saphir.hscx, HSCX_MASK, 0); writereg(cs->hw.saphir.ale, cs->hw.saphir.hscx, HSCX_MASK + 0x40, 0); } static void SaphirWatchDog(struct IsdnCardState *cs) { /* 5 sec WatchDog, so read at least every 4 sec */ cs->readisac(cs, ISAC_RBCH); del_timer(&cs->hw.saphir.timer); cs->hw.saphir.timer.expires = jiffies + 1*HZ; add_timer(&cs->hw.saphir.timer); } void release_io_saphir(struct IsdnCardState *cs) { long flags; save_flags(flags); cli(); byteout(cs->hw.saphir.cfg_reg + IRQ_REG, 0xff); del_timer(&cs->hw.saphir.timer); cs->hw.saphir.timer.function = NULL; restore_flags(flags); if (cs->hw.saphir.cfg_reg) release_region(cs->hw.saphir.cfg_reg, 6); } static int saphir_reset(struct IsdnCardState *cs) { long flags; u_char irq_val; switch(cs->irq) { case 5: irq_val = 0; break; case 3: irq_val = 1; break; case 11: irq_val = 2; break; case 12: irq_val = 3; break; case 15: irq_val = 4; break; default: printk(KERN_WARNING "HiSax: saphir wrong IRQ %d\n", cs->irq); return (1); } byteout(cs->hw.saphir.cfg_reg + IRQ_REG, irq_val); save_flags(flags); sti(); byteout(cs->hw.saphir.cfg_reg + RESET_REG, 1); set_current_state(TASK_INTERRUPTIBLE); schedule_timeout((30*HZ)/1000); /* Timeout 30ms */ byteout(cs->hw.saphir.cfg_reg + RESET_REG, 0); set_current_state(TASK_INTERRUPTIBLE); schedule_timeout((30*HZ)/1000); /* Timeout 30ms */ restore_flags(flags); byteout(cs->hw.saphir.cfg_reg + IRQ_REG, irq_val); byteout(cs->hw.saphir.cfg_reg + SPARE_REG, 0x02); return (0); } static int saphir_card_msg(struct IsdnCardState *cs, int mt, void *arg) { switch (mt) { case CARD_RESET: saphir_reset(cs); return(0); case CARD_RELEASE: release_io_saphir(cs); return(0); case CARD_INIT: inithscxisac(cs, 3); return(0); case CARD_TEST: return(0); } return(0); } __initfunc(int setup_saphir(struct IsdnCard *card)) { struct IsdnCardState *cs = card->cs; char tmp[64]; strcpy(tmp, saphir_rev); printk(KERN_INFO "HiSax: HST Saphir driver Rev. %s\n", HiSax_getrev(tmp)); if (cs->typ != ISDN_CTYPE_HSTSAPHIR) return (0); /* IO-Ports */ cs->hw.saphir.cfg_reg = card->para[1]; cs->hw.saphir.isac = card->para[1] + ISAC_DATA; cs->hw.saphir.hscx = card->para[1] + HSCX_DATA; cs->hw.saphir.ale = card->para[1] + ADDRESS_REG; cs->irq = card->para[0]; if (check_region((cs->hw.saphir.cfg_reg), 6)) { printk(KERN_WARNING "HiSax: %s config port %x-%x already in use\n", CardType[card->typ], cs->hw.saphir.cfg_reg, cs->hw.saphir.cfg_reg + 5); return (0); } else request_region(cs->hw.saphir.cfg_reg,6, "saphir"); printk(KERN_INFO "HiSax: %s config irq:%d io:0x%X\n", CardType[cs->typ], cs->irq, cs->hw.saphir.cfg_reg); cs->hw.saphir.timer.function = (void *) SaphirWatchDog; cs->hw.saphir.timer.data = (long) cs; init_timer(&cs->hw.saphir.timer); cs->hw.saphir.timer.expires = jiffies + 4*HZ; add_timer(&cs->hw.saphir.timer); if (saphir_reset(cs)) { release_io_saphir(cs); return (0); } cs->readisac = &ReadISAC; cs->writeisac = &WriteISAC; cs->readisacfifo = &ReadISACfifo; cs->writeisacfifo = &WriteISACfifo; cs->BC_Read_Reg = &ReadHSCX; cs->BC_Write_Reg = &WriteHSCX; cs->BC_Send_Data = &hscx_fill_fifo; cs->cardmsg = &saphir_card_msg; cs->irq_func = &saphir_interrupt; ISACVersion(cs, "saphir:"); if (HscxVersion(cs, "saphir:")) { printk(KERN_WARNING "saphir: wrong HSCX versions check IO address\n"); release_io_saphir(cs); return (0); } return (1); } |