drivers/isdn/hisax/niccy.c

   1 /* $Id: niccy.c,v 1.21.2.4 2004/01/13 23:48:39 keil Exp $
   2  *
   3  * low level stuff for Dr. Neuhaus NICCY PnP and NICCY PCI and
   4  * compatible (SAGEM cybermodem)
   5  *
   6  * Author       Karsten Keil
   7  * Copyright    by Karsten Keil      <keil@isdn4linux.de>
   8  *
   9  * This software may be used and distributed according to the terms
  10  * of the GNU General Public License, incorporated herein by reference.
  11  *
  12  * Thanks to Dr. Neuhaus and SAGEM for information
  13  *
  14  */
  15
  16
  17 #include <linux/init.h>
  18 #include "hisax.h"
  19 #include "isac.h"
  20 #include "hscx.h"
  21 #include "isdnl1.h"
  22 #include <linux/pci.h>
  23 #include <linux/isapnp.h>
  24
  25 extern const char *CardType[];
  26 static const char *niccy_revision = "$Revision: 1.21.2.4 $";
  27
  28 #define byteout(addr,val) outb(val,addr)
  29 #define bytein(addr) inb(addr)
  30
  31 #define ISAC_PCI_DATA   0
  32 #define HSCX_PCI_DATA   1
  33 #define ISAC_PCI_ADDR   2
  34 #define HSCX_PCI_ADDR   3
  35 #define ISAC_PNP        0
  36 #define HSCX_PNP        1
  37
  38 /* SUB Types */
  39 #define NICCY_PNP       1
  40 #define NICCY_PCI       2
  41
  42 /* PCI stuff */
  43 #define PCI_IRQ_CTRL_REG        0x38
  44 #define PCI_IRQ_ENABLE          0x1f00
  45 #define PCI_IRQ_DISABLE         0xff0000
  46 #define PCI_IRQ_ASSERT          0x800000
  47
  48 static inline u_char
  49 readreg(unsigned int ale, unsigned int adr, u_char off)
  50 {
  51         register u_char ret;
  52
  53         byteout(ale, off);
  54         ret = bytein(adr);
  55         return (ret);
  56 }
  57
  58 static inline void
  59 readfifo(unsigned int ale, unsigned int adr, u_char off, u_char * data, int size)
  60 {
  61         byteout(ale, off);
  62         insb(adr, data, size);
  63 }
  64
  65
  66 static inline void
  67 writereg(unsigned int ale, unsigned int adr, u_char off, u_char data)
  68 {
  69         byteout(ale, off);
  70         byteout(adr, data);
  71 }
  72
  73 static inline void
  74 writefifo(unsigned int ale, unsigned int adr, u_char off, u_char * data, int size)
  75 {
  76         byteout(ale, off);
  77         outsb(adr, data, size);
  78 }
  79
  80 /* Interface functions */
  81
  82 static u_char
  83 ReadISAC(struct IsdnCardState *cs, u_char offset)
  84 {
  85         return (readreg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, offset));
  86 }
  87
  88 static void
  89 WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
  90 {
  91         writereg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, offset, value);
  92 }
  93
  94 static void
  95 ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size)
  96 {
  97         readfifo(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, 0, data, size);
  98 }
  99
 100 static void
 101 WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size)
 102 {
 103         writefifo(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, 0, data, size);
 104 }
 105
 106 static u_char
 107 ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
 108 {
 109         return (readreg(cs->hw.niccy.hscx_ale,
 110                         cs->hw.niccy.hscx, offset + (hscx ? 0x40 : 0)));
 111 }
 112
 113 static void
 114 WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
 115 {
 116         writereg(cs->hw.niccy.hscx_ale,
 117                  cs->hw.niccy.hscx, offset + (hscx ? 0x40 : 0), value);
 118 }
 119
 120 #define READHSCX(cs, nr, reg) readreg(cs->hw.niccy.hscx_ale, \
 121                 cs->hw.niccy.hscx, reg + (nr ? 0x40 : 0))
 122 #define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.niccy.hscx_ale, \
 123                 cs->hw.niccy.hscx, reg + (nr ? 0x40 : 0), data)
 124
 125 #define READHSCXFIFO(cs, nr, ptr, cnt) readfifo(cs->hw.niccy.hscx_ale, \
 126                 cs->hw.niccy.hscx, (nr ? 0x40 : 0), ptr, cnt)
 127
 128 #define WRITEHSCXFIFO(cs, nr, ptr, cnt) writefifo(cs->hw.niccy.hscx_ale, \
 129                 cs->hw.niccy.hscx, (nr ? 0x40 : 0), ptr, cnt)
 130
 131 #include "hscx_irq.c"
 132
 133 static irqreturn_t
 134 niccy_interrupt(int intno, void *dev_id, struct pt_regs *regs)
 135 {
 136         struct IsdnCardState *cs = dev_id;
 137         u_char val;
 138         u_long flags;
 139
 140         spin_lock_irqsave(&cs->lock, flags);
 141         if (cs->subtyp == NICCY_PCI) {
 142                 int ival;
 143                 ival = inl(cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
 144                 if (!(ival & PCI_IRQ_ASSERT)) { /* IRQ not for us (shared) */
 145                         spin_unlock_irqrestore(&cs->lock, flags);
 146                         return IRQ_NONE;
 147                 }
 148                 outl(ival, cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
 149         }
 150         val = readreg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_ISTA + 0x40);
 151       Start_HSCX:
 152         if (val)
 153                 hscx_int_main(cs, val);
 154         val = readreg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, ISAC_ISTA);
 155       Start_ISAC:
 156         if (val)
 157                 isac_interrupt(cs, val);
 158         val = readreg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_ISTA + 0x40);
 159         if (val) {
 160                 if (cs->debug & L1_DEB_HSCX)
 161                         debugl1(cs, "HSCX IntStat after IntRoutine");
 162                 goto Start_HSCX;
 163         }
 164         val = readreg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, ISAC_ISTA);
 165         if (val) {
 166                 if (cs->debug & L1_DEB_ISAC)
 167                         debugl1(cs, "ISAC IntStat after IntRoutine");
 168                 goto Start_ISAC;
 169         }
 170         writereg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_MASK, 0xFF);
 171         writereg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_MASK + 0x40, 0xFF);
 172         writereg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, ISAC_MASK, 0xFF);
 173         writereg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, ISAC_MASK, 0);
 174         writereg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_MASK, 0);
 175         writereg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_MASK + 0x40, 0);
 176         spin_unlock_irqrestore(&cs->lock, flags);
 177         return IRQ_HANDLED;
 178 }
 179
 180 static void
 181 release_io_niccy(struct IsdnCardState *cs)
 182 {
 183         if (cs->subtyp == NICCY_PCI) {
 184                 int val;
 185
 186                 val = inl(cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
 187                 val &= PCI_IRQ_DISABLE;
 188                 outl(val, cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
 189                 release_region(cs->hw.niccy.cfg_reg, 0x40);
 190                 release_region(cs->hw.niccy.isac, 4);
 191         } else {
 192                 release_region(cs->hw.niccy.isac, 2);
 193                 release_region(cs->hw.niccy.isac_ale, 2);
 194         }
 195 }
 196
 197 static void
 198 niccy_reset(struct IsdnCardState *cs)
 199 {
 200         if (cs->subtyp == NICCY_PCI) {
 201                 int val;
 202
 203                 val = inl(cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
 204                 val |= PCI_IRQ_ENABLE;
 205                 outl(val, cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
 206         }
 207         inithscxisac(cs, 3);
 208 }
 209
 210 static int
 211 niccy_card_msg(struct IsdnCardState *cs, int mt, void *arg)
 212 {
 213         u_long flags;
 214
 215         switch (mt) {
 216                 case CARD_RESET:
 217                         spin_lock_irqsave(&cs->lock, flags);
 218                         niccy_reset(cs);
 219                         spin_unlock_irqrestore(&cs->lock, flags);
 220                         return(0);
 221                 case CARD_RELEASE:
 222                         release_io_niccy(cs);
 223                         return(0);
 224                 case CARD_INIT:
 225                         spin_lock_irqsave(&cs->lock, flags);
 226                         niccy_reset(cs);
 227                         spin_unlock_irqrestore(&cs->lock, flags);
 228                         return(0);
 229                 case CARD_TEST:
 230                         return(0);
 231         }
 232         return(0);
 233 }
 234
 235 static struct pci_dev *niccy_dev __devinitdata = NULL;
 236 #ifdef __ISAPNP__
 237 static struct pnp_card *pnp_c __devinitdata = NULL;
 238 #endif
 239
 240 int __devinit
 241 setup_niccy(struct IsdnCard *card)
 242 {
 243         struct IsdnCardState *cs = card->cs;
 244         char tmp[64];
 245
 246         strcpy(tmp, niccy_revision);
 247         printk(KERN_INFO "HiSax: Niccy driver Rev. %s\n", HiSax_getrev(tmp));
 248         if (cs->typ != ISDN_CTYPE_NICCY)
 249                 return (0);
 250 #ifdef __ISAPNP__
 251         if (!card->para[1] && isapnp_present()) {
 252                 struct pnp_dev *pnp_d = NULL;
 253                 int err;
 254
 255                 if ((pnp_c = pnp_find_card(
 256                         ISAPNP_VENDOR('S', 'D', 'A'),
 257                         ISAPNP_FUNCTION(0x0150), pnp_c))) {
 258                         if (!(pnp_d = pnp_find_dev(pnp_c,
 259                                 ISAPNP_VENDOR('S', 'D', 'A'),
 260                                 ISAPNP_FUNCTION(0x0150), pnp_d))) {
 261                                 printk(KERN_ERR "NiccyPnP: PnP error card found, no device\n");
 262                                 return (0);
 263                         }
 264                         pnp_disable_dev(pnp_d);
 265                         err = pnp_activate_dev(pnp_d);
 266                         if (err<0) {
 267                                 printk(KERN_WARNING "%s: pnp_activate_dev ret(%d)\n",
 268                                         __FUNCTION__, err);
 269                                 return(0);
 270                         }
 271                         card->para[1] = pnp_port_start(pnp_d, 0);
 272                         card->para[2] = pnp_port_start(pnp_d, 1);
 273                         card->para[0] = pnp_irq(pnp_d, 0);
 274                         if (!card->para[0] || !card->para[1] || !card->para[2]) {
 275                                 printk(KERN_ERR "NiccyPnP:some resources are missing %ld/%lx/%lx\n",
 276                                         card->para[0], card->para[1], card->para[2]);
 277                                 pnp_disable_dev(pnp_d);
 278                                 return(0);
 279                         }
 280                 } else {
 281                         printk(KERN_INFO "NiccyPnP: no ISAPnP card found\n");
 282                 }
 283         }
 284 #endif
 285         if (card->para[1]) {
 286                 cs->hw.niccy.isac = card->para[1] + ISAC_PNP;
 287                 cs->hw.niccy.hscx = card->para[1] + HSCX_PNP;
 288                 cs->hw.niccy.isac_ale = card->para[2] + ISAC_PNP;
 289                 cs->hw.niccy.hscx_ale = card->para[2] + HSCX_PNP;
 290                 cs->hw.niccy.cfg_reg = 0;
 291                 cs->subtyp = NICCY_PNP;
 292                 cs->irq = card->para[0];
 293                 if (!request_region(cs->hw.niccy.isac, 2, "niccy data")) {
 294                         printk(KERN_WARNING
 295                                 "HiSax: %s data port %x-%x already in use\n",
 296                                 CardType[card->typ],
 297                                 cs->hw.niccy.isac,
 298                                 cs->hw.niccy.isac + 1);
 299                         return (0);
 300                 }
 301                 if (!request_region(cs->hw.niccy.isac_ale, 2, "niccy addr")) {
 302                         printk(KERN_WARNING
 303                                 "HiSax: %s address port %x-%x already in use\n",
 304                                 CardType[card->typ],
 305                                 cs->hw.niccy.isac_ale,
 306                                 cs->hw.niccy.isac_ale + 1);
 307                         release_region(cs->hw.niccy.isac, 2);
 308                         return (0);
 309                 }
 310         } else {
 311 #ifdef CONFIG_PCI
 312                 u_int pci_ioaddr;
 313                 cs->subtyp = 0;
 314                 if ((niccy_dev = pci_find_device(PCI_VENDOR_ID_SATSAGEM,
 315                         PCI_DEVICE_ID_SATSAGEM_NICCY, niccy_dev))) {
 316                         if (pci_enable_device(niccy_dev))
 317                                 return(0);
 318                         /* get IRQ */
 319                         if (!niccy_dev->irq) {
 320                                 printk(KERN_WARNING "Niccy: No IRQ for PCI card found\n");
 321                                 return(0);
 322                         }
 323                         cs->irq = niccy_dev->irq;
 324                         cs->hw.niccy.cfg_reg = pci_resource_start(niccy_dev, 0);
 325                         if (!cs->hw.niccy.cfg_reg) {
 326                                 printk(KERN_WARNING "Niccy: No IO-Adr for PCI cfg found\n");
 327                                 return(0);
 328                         }
 329                         pci_ioaddr = pci_resource_start(niccy_dev, 1);
 330                         if (!pci_ioaddr) {
 331                                 printk(KERN_WARNING "Niccy: No IO-Adr for PCI card found\n");
 332                                 return(0);
 333                         }
 334                         cs->subtyp = NICCY_PCI;
 335                 } else {
 336                         printk(KERN_WARNING "Niccy: No PCI card found\n");
 337                         return(0);
 338                 }
 339                 cs->irq_flags |= IRQF_SHARED;
 340                 cs->hw.niccy.isac = pci_ioaddr + ISAC_PCI_DATA;
 341                 cs->hw.niccy.isac_ale = pci_ioaddr + ISAC_PCI_ADDR;
 342                 cs->hw.niccy.hscx = pci_ioaddr + HSCX_PCI_DATA;
 343                 cs->hw.niccy.hscx_ale = pci_ioaddr + HSCX_PCI_ADDR;
 344                 if (!request_region(cs->hw.niccy.isac, 4, "niccy")) {
 345                         printk(KERN_WARNING
 346                                 "HiSax: %s data port %x-%x already in use\n",
 347                                 CardType[card->typ],
 348                                 cs->hw.niccy.isac,
 349                                 cs->hw.niccy.isac + 4);
 350                         return (0);
 351                 }
 352                 if (!request_region(cs->hw.niccy.cfg_reg, 0x40, "niccy pci")) {
 353                         printk(KERN_WARNING
 354                                "HiSax: %s pci port %x-%x already in use\n",
 355                                 CardType[card->typ],
 356                                 cs->hw.niccy.cfg_reg,
 357                                 cs->hw.niccy.cfg_reg + 0x40);
 358                         release_region(cs->hw.niccy.isac, 4);
 359                         return (0);
 360                 }
 361 #else
 362                 printk(KERN_WARNING "Niccy: io0 0 and NO_PCI_BIOS\n");
 363                 printk(KERN_WARNING "Niccy: unable to config NICCY PCI\n");
 364                 return (0);
 365 #endif /* CONFIG_PCI */
 366         }
 367         printk(KERN_INFO "HiSax: %s %s config irq:%d data:0x%X ale:0x%X\n",
 368                 CardType[cs->typ], (cs->subtyp==1) ? "PnP":"PCI",
 369                 cs->irq, cs->hw.niccy.isac, cs->hw.niccy.isac_ale);
 370         setup_isac(cs);
 371         cs->readisac = &ReadISAC;
 372         cs->writeisac = &WriteISAC;
 373         cs->readisacfifo = &ReadISACfifo;
 374         cs->writeisacfifo = &WriteISACfifo;
 375         cs->BC_Read_Reg = &ReadHSCX;
 376         cs->BC_Write_Reg = &WriteHSCX;
 377         cs->BC_Send_Data = &hscx_fill_fifo;
 378         cs->cardmsg = &niccy_card_msg;
 379         cs->irq_func = &niccy_interrupt;
 380         ISACVersion(cs, "Niccy:");
 381         if (HscxVersion(cs, "Niccy:")) {
 382                 printk(KERN_WARNING
 383                     "Niccy: wrong HSCX versions check IO address\n");
 384                 release_io_niccy(cs);
 385                 return (0);
 386         }
 387         return (1);
 388 }