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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 | /* $Id: sportster.c,v 1.5 1998/02/02 13:29:46 keil Exp $ * sportster.c low level stuff for USR Sportster internal TA * * Author Karsten Keil (keil@temic-ech.spacenet.de) * * Thanks to Christian "naddy" Weisgerber (3Com, US Robotics) for documentation * * $Log: sportster.c,v $ * Revision 1.5 1998/02/02 13:29:46 keil * fast io * * Revision 1.4 1997/11/08 21:35:52 keil * new l1 init * * Revision 1.3 1997/11/06 17:09:29 keil * New 2.1 init code * * Revision 1.2 1997/10/29 18:51:18 keil * New files * * Revision 1.1.2.1 1997/10/17 22:10:58 keil * new files on 2.0 * */ #define __NO_VERSION__ #include "hisax.h" #include "isac.h" #include "hscx.h" #include "isdnl1.h" extern const char *CardType[]; const char *sportster_revision = "$Revision: 1.5 $"; #define byteout(addr,val) outb(val,addr) #define bytein(addr) inb(addr) #define SPORTSTER_ISAC 0xC000 #define SPORTSTER_HSCXA 0x0000 #define SPORTSTER_HSCXB 0x4000 #define SPORTSTER_RES_IRQ 0x8000 #define SPORTSTER_RESET 0x80 #define SPORTSTER_INTE 0x40 static inline int calc_off(unsigned int base, unsigned int off) { return(base + ((off & 0xfc)<<8) + ((off & 3)<<1)); } static inline void read_fifo(unsigned int adr, u_char * data, int size) { insb(adr, data, size); } static void write_fifo(unsigned int adr, u_char * data, int size) { outsb(adr, data, size); } /* Interface functions */ static u_char ReadISAC(struct IsdnCardState *cs, u_char offset) { return (bytein(calc_off(cs->hw.spt.isac, offset))); } static void WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value) { byteout(calc_off(cs->hw.spt.isac, offset), value); } static void ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size) { read_fifo(cs->hw.spt.isac, data, size); } static void WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size) { write_fifo(cs->hw.spt.isac, data, size); } static u_char ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset) { return (bytein(calc_off(cs->hw.spt.hscx[hscx], offset))); } static void WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value) { byteout(calc_off(cs->hw.spt.hscx[hscx], offset), value); } /* * fast interrupt HSCX stuff goes here */ #define READHSCX(cs, nr, reg) bytein(calc_off(cs->hw.spt.hscx[nr], reg)) #define WRITEHSCX(cs, nr, reg, data) byteout(calc_off(cs->hw.spt.hscx[nr], reg), data) #define READHSCXFIFO(cs, nr, ptr, cnt) read_fifo(cs->hw.spt.hscx[nr], ptr, cnt) #define WRITEHSCXFIFO(cs, nr, ptr, cnt) write_fifo(cs->hw.spt.hscx[nr], ptr, cnt) #include "hscx_irq.c" static void sportster_interrupt(int intno, void *dev_id, struct pt_regs *regs) { struct IsdnCardState *cs = dev_id; u_char val; if (!cs) { printk(KERN_WARNING "Sportster: Spurious interrupt!\n"); return; } val = READHSCX(cs, 1, HSCX_ISTA); Start_HSCX: if (val) hscx_int_main(cs, val); val = ReadISAC(cs, ISAC_ISTA); Start_ISAC: if (val) isac_interrupt(cs, val); val = READHSCX(cs, 1, HSCX_ISTA); if (val) { if (cs->debug & L1_DEB_HSCX) debugl1(cs, "HSCX IntStat after IntRoutine"); goto Start_HSCX; } val = ReadISAC(cs, ISAC_ISTA); if (val) { if (cs->debug & L1_DEB_ISAC) debugl1(cs, "ISAC IntStat after IntRoutine"); goto Start_ISAC; } /* get a new irq impulse if there any pending */ bytein(cs->hw.spt.cfg_reg + SPORTSTER_RES_IRQ +1); } void release_io_sportster(struct IsdnCardState *cs) { int i, adr; byteout(cs->hw.spt.cfg_reg + SPORTSTER_RES_IRQ, 0); for (i=0; i<64; i++) { adr = cs->hw.spt.cfg_reg + i *1024; release_region(adr, 8); } } void reset_sportster(struct IsdnCardState *cs) { long flags; cs->hw.spt.res_irq |= SPORTSTER_RESET; /* Reset On */ byteout(cs->hw.spt.cfg_reg + SPORTSTER_RES_IRQ, cs->hw.spt.res_irq); save_flags(flags); sti(); current->state = TASK_INTERRUPTIBLE; schedule_timeout(1); cs->hw.spt.res_irq &= ~SPORTSTER_RESET; /* Reset Off */ byteout(cs->hw.spt.cfg_reg + SPORTSTER_RES_IRQ, cs->hw.spt.res_irq); current->state = TASK_INTERRUPTIBLE; schedule_timeout(1); restore_flags(flags); } static int Sportster_card_msg(struct IsdnCardState *cs, int mt, void *arg) { switch (mt) { case CARD_RESET: reset_sportster(cs); return(0); case CARD_RELEASE: release_io_sportster(cs); return(0); case CARD_SETIRQ: return(request_irq(cs->irq, &sportster_interrupt, I4L_IRQ_FLAG, "HiSax", cs)); case CARD_INIT: clear_pending_isac_ints(cs); clear_pending_hscx_ints(cs); initisac(cs); inithscx(cs); cs->hw.spt.res_irq |= SPORTSTER_INTE; /* IRQ On */ byteout(cs->hw.spt.cfg_reg + SPORTSTER_RES_IRQ, cs->hw.spt.res_irq); return(0); case CARD_TEST: return(0); } return(0); } __initfunc(int get_io_range(struct IsdnCardState *cs)) { int i, j, adr; for (i=0;i<64;i++) { adr = cs->hw.spt.cfg_reg + i *1024; if (check_region(adr, 8)) { printk(KERN_WARNING "HiSax: %s config port %x-%x already in use\n", CardType[cs->typ], adr, adr + 8); break; } else request_region(adr, 8, "sportster"); } if (i==64) return(1); else { for (j=0; j<i; j++) { adr = cs->hw.spt.cfg_reg + j *1024; release_region(adr, 8); } return(0); } } __initfunc(int setup_sportster(struct IsdnCard *card)) { struct IsdnCardState *cs = card->cs; char tmp[64]; strcpy(tmp, sportster_revision); printk(KERN_INFO "HiSax: USR Sportster driver Rev. %s\n", HiSax_getrev(tmp)); if (cs->typ != ISDN_CTYPE_SPORTSTER) return (0); cs->hw.spt.cfg_reg = card->para[1]; cs->irq = card->para[0]; if (!get_io_range(cs)) return (0); cs->hw.spt.isac = cs->hw.spt.cfg_reg + SPORTSTER_ISAC; cs->hw.spt.hscx[0] = cs->hw.spt.cfg_reg + SPORTSTER_HSCXA; cs->hw.spt.hscx[1] = cs->hw.spt.cfg_reg + SPORTSTER_HSCXB; switch(cs->irq) { case 5: cs->hw.spt.res_irq = 1; break; case 7: cs->hw.spt.res_irq = 2; break; case 10:cs->hw.spt.res_irq = 3; break; case 11:cs->hw.spt.res_irq = 4; break; case 12:cs->hw.spt.res_irq = 5; break; case 14:cs->hw.spt.res_irq = 6; break; case 15:cs->hw.spt.res_irq = 7; break; default:release_io_sportster(cs); printk(KERN_WARNING "Sportster: wrong IRQ\n"); return(0); } reset_sportster(cs); printk(KERN_INFO "HiSax: %s config irq:%d cfg:0x%X\n", CardType[cs->typ], cs->irq, cs->hw.spt.cfg_reg); 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 = &Sportster_card_msg; ISACVersion(cs, "Sportster:"); if (HscxVersion(cs, "Sportster:")) { printk(KERN_WARNING "Sportster: wrong HSCX versions check IO address\n"); release_io_sportster(cs); return (0); } return (1); } |