drivers/isdn/hisax/asuscom.c

   1 /* $Id: asuscom.c,v 1.14.2.4 2004/01/13 23:48:39 keil Exp $
   2  *
   3  * low level stuff for ASUSCOM NETWORK INC. ISDNLink cards
   4  *
   5  * Author       Karsten Keil
   6  * Copyright    by Karsten Keil      <keil@isdn4linux.de>
   7  *
   8  * This software may be used and distributed according to the terms
   9  * of the GNU General Public License, incorporated herein by reference.
  10  *
  11  * Thanks to  ASUSCOM NETWORK INC. Taiwan and  Dynalink NL for information
  12  *
  13  */
  14
  15 #include <linux/init.h>
  16 #include <linux/isapnp.h>
  17 #include "hisax.h"
  18 #include "isac.h"
  19 #include "ipac.h"
  20 #include "hscx.h"
  21 #include "isdnl1.h"
  22
  23 extern const char *CardType[];
  24
  25 const char *Asuscom_revision = "$Revision: 1.14.2.4 $";
  26
  27 #define byteout(addr,val) outb(val,addr)
  28 #define bytein(addr) inb(addr)
  29
  30 #define ASUS_ISAC       0
  31 #define ASUS_HSCX       1
  32 #define ASUS_ADR        2
  33 #define ASUS_CTRL_U7    3
  34 #define ASUS_CTRL_POTS  5
  35
  36 #define ASUS_IPAC_ALE   0
  37 #define ASUS_IPAC_DATA  1
  38
  39 #define ASUS_ISACHSCX   1
  40 #define ASUS_IPAC       2
  41
  42 /* CARD_ADR (Write) */
  43 #define ASUS_RESET      0x80    /* Bit 7 Reset-Leitung */
  44
  45 static inline u_char
  46 readreg(unsigned int ale, unsigned int adr, u_char off)
  47 {
  48         register u_char ret;
  49
  50         byteout(ale, off);
  51         ret = bytein(adr);
  52         return (ret);
  53 }
  54
  55 static inline void
  56 readfifo(unsigned int ale, unsigned int adr, u_char off, u_char * data, int size)
  57 {
  58         byteout(ale, off);
  59         insb(adr, data, size);
  60 }
  61
  62
  63 static inline void
  64 writereg(unsigned int ale, unsigned int adr, u_char off, u_char data)
  65 {
  66         byteout(ale, off);
  67         byteout(adr, data);
  68 }
  69
  70 static inline void
  71 writefifo(unsigned int ale, unsigned int adr, u_char off, u_char * data, int size)
  72 {
  73         byteout(ale, off);
  74         outsb(adr, data, size);
  75 }
  76
  77 /* Interface functions */
  78
  79 static u_char
  80 ReadISAC(struct IsdnCardState *cs, u_char offset)
  81 {
  82         return (readreg(cs->hw.asus.adr, cs->hw.asus.isac, offset));
  83 }
  84
  85 static void
  86 WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
  87 {
  88         writereg(cs->hw.asus.adr, cs->hw.asus.isac, offset, value);
  89 }
  90
  91 static void
  92 ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size)
  93 {
  94         readfifo(cs->hw.asus.adr, cs->hw.asus.isac, 0, data, size);
  95 }
  96
  97 static void
  98 WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size)
  99 {
 100         writefifo(cs->hw.asus.adr, cs->hw.asus.isac, 0, data, size);
 101 }
 102
 103 static u_char
 104 ReadISAC_IPAC(struct IsdnCardState *cs, u_char offset)
 105 {
 106         return (readreg(cs->hw.asus.adr, cs->hw.asus.isac, offset|0x80));
 107 }
 108
 109 static void
 110 WriteISAC_IPAC(struct IsdnCardState *cs, u_char offset, u_char value)
 111 {
 112         writereg(cs->hw.asus.adr, cs->hw.asus.isac, offset|0x80, value);
 113 }
 114
 115 static void
 116 ReadISACfifo_IPAC(struct IsdnCardState *cs, u_char * data, int size)
 117 {
 118         readfifo(cs->hw.asus.adr, cs->hw.asus.isac, 0x80, data, size);
 119 }
 120
 121 static void
 122 WriteISACfifo_IPAC(struct IsdnCardState *cs, u_char * data, int size)
 123 {
 124         writefifo(cs->hw.asus.adr, cs->hw.asus.isac, 0x80, data, size);
 125 }
 126
 127 static u_char
 128 ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
 129 {
 130         return (readreg(cs->hw.asus.adr,
 131                         cs->hw.asus.hscx, offset + (hscx ? 0x40 : 0)));
 132 }
 133
 134 static void
 135 WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
 136 {
 137         writereg(cs->hw.asus.adr,
 138                  cs->hw.asus.hscx, offset + (hscx ? 0x40 : 0), value);
 139 }
 140
 141 /*
 142  * fast interrupt HSCX stuff goes here
 143  */
 144
 145 #define READHSCX(cs, nr, reg) readreg(cs->hw.asus.adr, \
 146                 cs->hw.asus.hscx, reg + (nr ? 0x40 : 0))
 147 #define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.asus.adr, \
 148                 cs->hw.asus.hscx, reg + (nr ? 0x40 : 0), data)
 149
 150 #define READHSCXFIFO(cs, nr, ptr, cnt) readfifo(cs->hw.asus.adr, \
 151                 cs->hw.asus.hscx, (nr ? 0x40 : 0), ptr, cnt)
 152
 153 #define WRITEHSCXFIFO(cs, nr, ptr, cnt) writefifo(cs->hw.asus.adr, \
 154                 cs->hw.asus.hscx, (nr ? 0x40 : 0), ptr, cnt)
 155
 156 #include "hscx_irq.c"
 157
 158 static irqreturn_t
 159 asuscom_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 160 {
 161         struct IsdnCardState *cs = dev_id;
 162         u_char val;
 163         u_long flags;
 164
 165         spin_lock_irqsave(&cs->lock, flags);
 166         val = readreg(cs->hw.asus.adr, cs->hw.asus.hscx, HSCX_ISTA + 0x40);
 167       Start_HSCX:
 168         if (val)
 169                 hscx_int_main(cs, val);
 170         val = readreg(cs->hw.asus.adr, cs->hw.asus.isac, ISAC_ISTA);
 171       Start_ISAC:
 172         if (val)
 173                 isac_interrupt(cs, val);
 174         val = readreg(cs->hw.asus.adr, cs->hw.asus.hscx, HSCX_ISTA + 0x40);
 175         if (val) {
 176                 if (cs->debug & L1_DEB_HSCX)
 177                         debugl1(cs, "HSCX IntStat after IntRoutine");
 178                 goto Start_HSCX;
 179         }
 180         val = readreg(cs->hw.asus.adr, cs->hw.asus.isac, ISAC_ISTA);
 181         if (val) {
 182                 if (cs->debug & L1_DEB_ISAC)
 183                         debugl1(cs, "ISAC IntStat after IntRoutine");
 184                 goto Start_ISAC;
 185         }
 186         writereg(cs->hw.asus.adr, cs->hw.asus.hscx, HSCX_MASK, 0xFF);
 187         writereg(cs->hw.asus.adr, cs->hw.asus.hscx, HSCX_MASK + 0x40, 0xFF);
 188         writereg(cs->hw.asus.adr, cs->hw.asus.isac, ISAC_MASK, 0xFF);
 189         writereg(cs->hw.asus.adr, cs->hw.asus.isac, ISAC_MASK, 0x0);
 190         writereg(cs->hw.asus.adr, cs->hw.asus.hscx, HSCX_MASK, 0x0);
 191         writereg(cs->hw.asus.adr, cs->hw.asus.hscx, HSCX_MASK + 0x40, 0x0);
 192         spin_unlock_irqrestore(&cs->lock, flags);
 193         return IRQ_HANDLED;
 194 }
 195
 196 static irqreturn_t
 197 asuscom_interrupt_ipac(int intno, void *dev_id, struct pt_regs *regs)
 198 {
 199         struct IsdnCardState *cs = dev_id;
 200         u_char ista, val, icnt = 5;
 201         u_long flags;
 202
 203         spin_lock_irqsave(&cs->lock, flags);
 204         ista = readreg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_ISTA);
 205 Start_IPAC:
 206         if (cs->debug & L1_DEB_IPAC)
 207                 debugl1(cs, "IPAC ISTA %02X", ista);
 208         if (ista & 0x0f) {
 209                 val = readreg(cs->hw.asus.adr, cs->hw.asus.hscx, HSCX_ISTA + 0x40);
 210                 if (ista & 0x01)
 211                         val |= 0x01;
 212                 if (ista & 0x04)
 213                         val |= 0x02;
 214                 if (ista & 0x08)
 215                         val |= 0x04;
 216                 if (val)
 217                         hscx_int_main(cs, val);
 218         }
 219         if (ista & 0x20) {
 220                 val = 0xfe & readreg(cs->hw.asus.adr, cs->hw.asus.isac, ISAC_ISTA | 0x80);
 221                 if (val) {
 222                         isac_interrupt(cs, val);
 223                 }
 224         }
 225         if (ista & 0x10) {
 226                 val = 0x01;
 227                 isac_interrupt(cs, val);
 228         }
 229         ista  = readreg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_ISTA);
 230         if ((ista & 0x3f) && icnt) {
 231                 icnt--;
 232                 goto Start_IPAC;
 233         }
 234         if (!icnt)
 235                 printk(KERN_WARNING "ASUS IRQ LOOP\n");
 236         writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_MASK, 0xFF);
 237         writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_MASK, 0xC0);
 238         spin_unlock_irqrestore(&cs->lock, flags);
 239         return IRQ_HANDLED;
 240 }
 241
 242 void
 243 release_io_asuscom(struct IsdnCardState *cs)
 244 {
 245         int bytecnt = 8;
 246
 247         if (cs->hw.asus.cfg_reg)
 248                 release_region(cs->hw.asus.cfg_reg, bytecnt);
 249 }
 250
 251 static void
 252 reset_asuscom(struct IsdnCardState *cs)
 253 {
 254         if (cs->subtyp == ASUS_IPAC)
 255                 writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_POTA2, 0x20);
 256         else
 257                 byteout(cs->hw.asus.adr, ASUS_RESET);   /* Reset On */
 258         mdelay(10);
 259         if (cs->subtyp == ASUS_IPAC)
 260                 writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_POTA2, 0x0);
 261         else
 262                 byteout(cs->hw.asus.adr, 0);    /* Reset Off */
 263         mdelay(10);
 264         if (cs->subtyp == ASUS_IPAC) {
 265                 writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_CONF, 0x0);
 266                 writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_ACFG, 0xff);
 267                 writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_AOE, 0x0);
 268                 writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_MASK, 0xc0);
 269                 writereg(cs->hw.asus.adr, cs->hw.asus.isac, IPAC_PCFG, 0x12);
 270         }
 271 }
 272
 273 static int
 274 Asus_card_msg(struct IsdnCardState *cs, int mt, void *arg)
 275 {
 276         u_long flags;
 277
 278         switch (mt) {
 279                 case CARD_RESET:
 280                         spin_lock_irqsave(&cs->lock, flags);
 281                         reset_asuscom(cs);
 282                         spin_unlock_irqrestore(&cs->lock, flags);
 283                         return(0);
 284                 case CARD_RELEASE:
 285                         release_io_asuscom(cs);
 286                         return(0);
 287                 case CARD_INIT:
 288                         spin_lock_irqsave(&cs->lock, flags);
 289                         cs->debug |= L1_DEB_IPAC;
 290                         inithscxisac(cs, 3);
 291                         spin_unlock_irqrestore(&cs->lock, flags);
 292                         return(0);
 293                 case CARD_TEST:
 294                         return(0);
 295         }
 296         return(0);
 297 }
 298
 299 #ifdef __ISAPNP__
 300 static struct isapnp_device_id asus_ids[] __initdata = {
 301         { ISAPNP_VENDOR('A', 'S', 'U'), ISAPNP_FUNCTION(0x1688),
 302           ISAPNP_VENDOR('A', 'S', 'U'), ISAPNP_FUNCTION(0x1688),
 303           (unsigned long) "Asus1688 PnP" },
 304         { ISAPNP_VENDOR('A', 'S', 'U'), ISAPNP_FUNCTION(0x1690),
 305           ISAPNP_VENDOR('A', 'S', 'U'), ISAPNP_FUNCTION(0x1690),
 306           (unsigned long) "Asus1690 PnP" },
 307         { ISAPNP_VENDOR('S', 'I', 'E'), ISAPNP_FUNCTION(0x0020),
 308           ISAPNP_VENDOR('S', 'I', 'E'), ISAPNP_FUNCTION(0x0020),
 309           (unsigned long) "Isurf2 PnP" },
 310         { ISAPNP_VENDOR('E', 'L', 'F'), ISAPNP_FUNCTION(0x0000),
 311           ISAPNP_VENDOR('E', 'L', 'F'), ISAPNP_FUNCTION(0x0000),
 312           (unsigned long) "Iscas TE320" },
 313         { 0, }
 314 };
 315
 316 static struct isapnp_device_id *ipid __initdata = &asus_ids[0];
 317 static struct pnp_card *pnp_c __devinitdata = NULL;
 318 #endif
 319
 320 int __init
 321 setup_asuscom(struct IsdnCard *card)
 322 {
 323         int bytecnt;
 324         struct IsdnCardState *cs = card->cs;
 325         u_char val;
 326         char tmp[64];
 327
 328         strcpy(tmp, Asuscom_revision);
 329         printk(KERN_INFO "HiSax: Asuscom ISDNLink driver Rev. %s\n", HiSax_getrev(tmp));
 330         if (cs->typ != ISDN_CTYPE_ASUSCOM)
 331                 return (0);
 332 #ifdef __ISAPNP__
 333         if (!card->para[1] && isapnp_present()) {
 334                 struct pnp_dev *pnp_d;
 335                 while(ipid->card_vendor) {
 336                         if ((pnp_c = pnp_find_card(ipid->card_vendor,
 337                                 ipid->card_device, pnp_c))) {
 338                                 pnp_d = NULL;
 339                                 if ((pnp_d = pnp_find_dev(pnp_c,
 340                                         ipid->vendor, ipid->function, pnp_d))) {
 341                                         int err;
 342
 343                                         printk(KERN_INFO "HiSax: %s detected\n",
 344                                                 (char *)ipid->driver_data);
 345                                         pnp_disable_dev(pnp_d);
 346                                         err = pnp_activate_dev(pnp_d);
 347                                         if (err<0) {
 348                                                 printk(KERN_WARNING "%s: pnp_activate_dev ret(%d)\n",
 349                                                         __FUNCTION__, err);
 350                                                 return(0);
 351                                         }
 352                                         card->para[1] = pnp_port_start(pnp_d, 0);
 353                                         card->para[0] = pnp_irq(pnp_d, 0);
 354                                         if (!card->para[0] || !card->para[1]) {
 355                                                 printk(KERN_ERR "AsusPnP:some resources are missing %ld/%lx\n",
 356                                                         card->para[0], card->para[1]);
 357                                                 pnp_disable_dev(pnp_d);
 358                                                 return(0);
 359                                         }
 360                                         break;
 361                                 } else {
 362                                         printk(KERN_ERR "AsusPnP: PnP error card found, no device\n");
 363                                 }
 364                         }
 365                         ipid++;
 366                         pnp_c = NULL;
 367                 }
 368                 if (!ipid->card_vendor) {
 369                         printk(KERN_INFO "AsusPnP: no ISAPnP card found\n");
 370                         return(0);
 371                 }
 372         }
 373 #endif
 374         bytecnt = 8;
 375         cs->hw.asus.cfg_reg = card->para[1];
 376         cs->irq = card->para[0];
 377         if (!request_region(cs->hw.asus.cfg_reg, bytecnt, "asuscom isdn")) {
 378                 printk(KERN_WARNING
 379                        "HiSax: %s config port %x-%x already in use\n",
 380                        CardType[card->typ],
 381                        cs->hw.asus.cfg_reg,
 382                        cs->hw.asus.cfg_reg + bytecnt);
 383                 return (0);
 384         }
 385         printk(KERN_INFO "ISDNLink: defined at 0x%x IRQ %d\n",
 386                 cs->hw.asus.cfg_reg, cs->irq);
 387         setup_isac(cs);
 388         cs->BC_Read_Reg = &ReadHSCX;
 389         cs->BC_Write_Reg = &WriteHSCX;
 390         cs->BC_Send_Data = &hscx_fill_fifo;
 391         cs->cardmsg = &Asus_card_msg;
 392         val = readreg(cs->hw.asus.cfg_reg + ASUS_IPAC_ALE,
 393                 cs->hw.asus.cfg_reg + ASUS_IPAC_DATA, IPAC_ID);
 394         if ((val == 1) || (val == 2)) {
 395                 cs->subtyp = ASUS_IPAC;
 396                 cs->hw.asus.adr  = cs->hw.asus.cfg_reg + ASUS_IPAC_ALE;
 397                 cs->hw.asus.isac = cs->hw.asus.cfg_reg + ASUS_IPAC_DATA;
 398                 cs->hw.asus.hscx = cs->hw.asus.cfg_reg + ASUS_IPAC_DATA;
 399                 test_and_set_bit(HW_IPAC, &cs->HW_Flags);
 400                 cs->readisac = &ReadISAC_IPAC;
 401                 cs->writeisac = &WriteISAC_IPAC;
 402                 cs->readisacfifo = &ReadISACfifo_IPAC;
 403                 cs->writeisacfifo = &WriteISACfifo_IPAC;
 404                 cs->irq_func = &asuscom_interrupt_ipac;
 405                 printk(KERN_INFO "Asus: IPAC version %x\n", val);
 406         } else {
 407                 cs->subtyp = ASUS_ISACHSCX;
 408                 cs->hw.asus.adr = cs->hw.asus.cfg_reg + ASUS_ADR;
 409                 cs->hw.asus.isac = cs->hw.asus.cfg_reg + ASUS_ISAC;
 410                 cs->hw.asus.hscx = cs->hw.asus.cfg_reg + ASUS_HSCX;
 411                 cs->hw.asus.u7 = cs->hw.asus.cfg_reg + ASUS_CTRL_U7;
 412                 cs->hw.asus.pots = cs->hw.asus.cfg_reg + ASUS_CTRL_POTS;
 413                 cs->readisac = &ReadISAC;
 414                 cs->writeisac = &WriteISAC;
 415                 cs->readisacfifo = &ReadISACfifo;
 416                 cs->writeisacfifo = &WriteISACfifo;
 417                 cs->irq_func = &asuscom_interrupt;
 418                 ISACVersion(cs, "ISDNLink:");
 419                 if (HscxVersion(cs, "ISDNLink:")) {
 420                         printk(KERN_WARNING
 421                         "ISDNLink: wrong HSCX versions check IO address\n");
 422                         release_io_asuscom(cs);
 423                         return (0);
 424                 }
 425         }
 426         return (1);
 427 }