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