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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 | /* $Id: s0box.c,v 2.6.2.4 2004/01/13 23:48:39 keil Exp $ * * low level stuff for Creatix S0BOX * * Author Enrik Berkhan * Copyright by Enrik Berkhan <enrik@starfleet.inka.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 "isdnl1.h" extern const char *CardType[]; static const char *s0box_revision = "$Revision: 2.6.2.4 $"; static inline void writereg(unsigned int padr, signed int addr, u_char off, u_char val) { outb_p(0x1c,padr+2); outb_p(0x14,padr+2); outb_p((addr+off)&0x7f,padr); outb_p(0x16,padr+2); outb_p(val,padr); outb_p(0x17,padr+2); outb_p(0x14,padr+2); outb_p(0x1c,padr+2); } static u_char nibtab[] = { 1, 9, 5, 0xd, 3, 0xb, 7, 0xf, 0, 0, 0, 0, 0, 0, 0, 0, 0, 8, 4, 0xc, 2, 0xa, 6, 0xe } ; static inline u_char readreg(unsigned int padr, signed int addr, u_char off) { register u_char n1, n2; outb_p(0x1c,padr+2); outb_p(0x14,padr+2); outb_p((addr+off)|0x80,padr); outb_p(0x16,padr+2); outb_p(0x17,padr+2); n1 = (inb_p(padr+1) >> 3) & 0x17; outb_p(0x16,padr+2); n2 = (inb_p(padr+1) >> 3) & 0x17; outb_p(0x14,padr+2); outb_p(0x1c,padr+2); return nibtab[n1] | (nibtab[n2] << 4); } static inline void read_fifo(unsigned int padr, signed int adr, u_char * data, int size) { int i; register u_char n1, n2; outb_p(0x1c, padr+2); outb_p(0x14, padr+2); outb_p(adr|0x80, padr); outb_p(0x16, padr+2); for (i=0; i<size; i++) { outb_p(0x17, padr+2); n1 = (inb_p(padr+1) >> 3) & 0x17; outb_p(0x16,padr+2); n2 = (inb_p(padr+1) >> 3) & 0x17; *(data++)=nibtab[n1] | (nibtab[n2] << 4); } outb_p(0x14,padr+2); outb_p(0x1c,padr+2); return; } static inline void write_fifo(unsigned int padr, signed int adr, u_char * data, int size) { int i; outb_p(0x1c, padr+2); outb_p(0x14, padr+2); outb_p(adr&0x7f, padr); for (i=0; i<size; i++) { outb_p(0x16, padr+2); outb_p(*(data++), padr); outb_p(0x17, padr+2); } outb_p(0x14,padr+2); outb_p(0x1c,padr+2); return; } /* Interface functions */ static u_char ReadISAC(struct IsdnCardState *cs, u_char offset) { return (readreg(cs->hw.teles3.cfg_reg, cs->hw.teles3.isac, offset)); } static void WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value) { writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.isac, offset, value); } static void ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size) { read_fifo(cs->hw.teles3.cfg_reg, cs->hw.teles3.isacfifo, data, size); } static void WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size) { write_fifo(cs->hw.teles3.cfg_reg, cs->hw.teles3.isacfifo, data, size); } static u_char ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset) { return (readreg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[hscx], offset)); } static void WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value) { writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[hscx], offset, value); } /* * fast interrupt HSCX stuff goes here */ #define READHSCX(cs, nr, reg) readreg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[nr], reg) #define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[nr], reg, data) #define READHSCXFIFO(cs, nr, ptr, cnt) read_fifo(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscxfifo[nr], ptr, cnt) #define WRITEHSCXFIFO(cs, nr, ptr, cnt) write_fifo(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscxfifo[nr], ptr, cnt) #include "hscx_irq.c" static irqreturn_t s0box_interrupt(int intno, void *dev_id, struct pt_regs *regs) { #define MAXCOUNT 5 struct IsdnCardState *cs = dev_id; u_char val; u_long flags; int count = 0; spin_lock_irqsave(&cs->lock, flags); val = readreg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[1], HSCX_ISTA); Start_HSCX: if (val) hscx_int_main(cs, val); val = readreg(cs->hw.teles3.cfg_reg, cs->hw.teles3.isac, ISAC_ISTA); Start_ISAC: if (val) isac_interrupt(cs, val); count++; val = readreg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[1], HSCX_ISTA); if (val && count < MAXCOUNT) { if (cs->debug & L1_DEB_HSCX) debugl1(cs, "HSCX IntStat after IntRoutine"); goto Start_HSCX; } val = readreg(cs->hw.teles3.cfg_reg, cs->hw.teles3.isac, ISAC_ISTA); if (val && count < MAXCOUNT) { if (cs->debug & L1_DEB_ISAC) debugl1(cs, "ISAC IntStat after IntRoutine"); goto Start_ISAC; } if (count >= MAXCOUNT) printk(KERN_WARNING "S0Box: more than %d loops in s0box_interrupt\n", count); writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[0], HSCX_MASK, 0xFF); writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[1], HSCX_MASK, 0xFF); writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.isac, ISAC_MASK, 0xFF); writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.isac, ISAC_MASK, 0x0); writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[0], HSCX_MASK, 0x0); writereg(cs->hw.teles3.cfg_reg, cs->hw.teles3.hscx[1], HSCX_MASK, 0x0); spin_unlock_irqrestore(&cs->lock, flags); return IRQ_HANDLED; } static void release_io_s0box(struct IsdnCardState *cs) { release_region(cs->hw.teles3.cfg_reg, 8); } static int S0Box_card_msg(struct IsdnCardState *cs, int mt, void *arg) { u_long flags; switch (mt) { case CARD_RESET: break; case CARD_RELEASE: release_io_s0box(cs); break; case CARD_INIT: spin_lock_irqsave(&cs->lock, flags); inithscxisac(cs, 3); spin_unlock_irqrestore(&cs->lock, flags); break; case CARD_TEST: break; } return(0); } int __init setup_s0box(struct IsdnCard *card) { struct IsdnCardState *cs = card->cs; char tmp[64]; strcpy(tmp, s0box_revision); printk(KERN_INFO "HiSax: S0Box IO driver Rev. %s\n", HiSax_getrev(tmp)); if (cs->typ != ISDN_CTYPE_S0BOX) return (0); cs->hw.teles3.cfg_reg = card->para[1]; cs->hw.teles3.hscx[0] = -0x20; cs->hw.teles3.hscx[1] = 0x0; cs->hw.teles3.isac = 0x20; cs->hw.teles3.isacfifo = cs->hw.teles3.isac + 0x3e; cs->hw.teles3.hscxfifo[0] = cs->hw.teles3.hscx[0] + 0x3e; cs->hw.teles3.hscxfifo[1] = cs->hw.teles3.hscx[1] + 0x3e; cs->irq = card->para[0]; if (!request_region(cs->hw.teles3.cfg_reg,8, "S0Box parallel I/O")) { printk(KERN_WARNING "HiSax: %s ports %x-%x already in use\n", CardType[cs->typ], cs->hw.teles3.cfg_reg, cs->hw.teles3.cfg_reg + 7); return 0; } printk(KERN_INFO "HiSax: %s config irq:%d isac:0x%x cfg:0x%x\n", CardType[cs->typ], cs->irq, cs->hw.teles3.isac, cs->hw.teles3.cfg_reg); printk(KERN_INFO "HiSax: hscx A:0x%x hscx B:0x%x\n", cs->hw.teles3.hscx[0], cs->hw.teles3.hscx[1]); setup_isac(cs); 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 = &S0Box_card_msg; cs->irq_func = &s0box_interrupt; ISACVersion(cs, "S0Box:"); if (HscxVersion(cs, "S0Box:")) { printk(KERN_WARNING "S0Box: wrong HSCX versions check IO address\n"); release_io_s0box(cs); return (0); } return (1); } |