LXR linux/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
  23extern const char *CardType[];
  24
  25static 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
  45static inline u_char
  46readreg(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
  55static inline void
  56readfifo(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
  63static inline void
  64writereg(unsigned int ale, unsigned int adr, u_char off, u_char data)
  65{
  66        byteout(ale, off);
  67        byteout(adr, data);
  68}
  69
  70static inline void
  71writefifo(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
  79static u_char
  80ReadISAC(struct IsdnCardState *cs, u_char offset)
  81{
  82        return (readreg(cs->hw.asus.adr, cs->hw.asus.isac, offset));
  83}
  84
  85static void
  86WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
  87{
  88        writereg(cs->hw.asus.adr, cs->hw.asus.isac, offset, value);
  89}
  90
  91static void
  92ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size)
  93{
  94        readfifo(cs->hw.asus.adr, cs->hw.asus.isac, 0, data, size);
  95}
  96
  97static void
  98WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size)
  99{
 100        writefifo(cs->hw.asus.adr, cs->hw.asus.isac, 0, data, size);
 101}
 102
 103static u_char
 104ReadISAC_IPAC(struct IsdnCardState *cs, u_char offset)
 105{
 106        return (readreg(cs->hw.asus.adr, cs->hw.asus.isac, offset|0x80));
 107}
 108
 109static void
 110WriteISAC_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
 115static void
 116ReadISACfifo_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
 121static void
 122WriteISACfifo_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
 127static u_char
 128ReadHSCX(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
 134static void
 135WriteHSCX(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
 158static irqreturn_t
 159asuscom_interrupt(int intno, void *dev_id)
 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
 196static irqreturn_t
 197asuscom_interrupt_ipac(int intno, void *dev_id)
 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);
 205Start_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
 242static void
 243release_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
 251static void
 252reset_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
 273static int
 274Asus_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__
 300static struct isapnp_device_id asus_ids[] __devinitdata = {
 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
 316static struct isapnp_device_id *ipid __devinitdata = &asus_ids[0];
 317static struct pnp_card *pnp_c __devinitdata = NULL;
 318#endif
 319
 320int __devinit
 321setup_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}
 428