drivers/pcmcia/tcic.c

   1 /*======================================================================
   2
   3     Device driver for Databook TCIC-2 PCMCIA controller
   4
   5     tcic.c 1.111 2000/02/15 04:13:12
   6
   7     The contents of this file are subject to the Mozilla Public
   8     License Version 1.1 (the "License"); you may not use this file
   9     except in compliance with the License. You may obtain a copy of
  10     the License at http://www.mozilla.org/MPL/
  11
  12     Software distributed under the License is distributed on an "AS
  13     IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
  14     implied. See the License for the specific language governing
  15     rights and limitations under the License.
  16
  17     The initial developer of the original code is David A. Hinds
  18     <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
  19     are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
  20
  21     Alternatively, the contents of this file may be used under the
  22     terms of the GNU General Public License version 2 (the "GPL"), in which
  23     case the provisions of the GPL are applicable instead of the
  24     above.  If you wish to allow the use of your version of this file
  25     only under the terms of the GPL and not to allow others to use
  26     your version of this file under the MPL, indicate your decision
  27     by deleting the provisions above and replace them with the notice
  28     and other provisions required by the GPL.  If you do not delete
  29     the provisions above, a recipient may use your version of this
  30     file under either the MPL or the GPL.
  31
  32 ======================================================================*/
  33
  34 #include <linux/module.h>
  35 #include <linux/moduleparam.h>
  36 #include <linux/init.h>
  37 #include <linux/types.h>
  38 #include <linux/fcntl.h>
  39 #include <linux/string.h>
  40 #include <linux/errno.h>
  41 #include <linux/interrupt.h>
  42 #include <linux/slab.h>
  43 #include <linux/timer.h>
  44 #include <linux/ioport.h>
  45 #include <linux/delay.h>
  46 #include <linux/workqueue.h>
  47 #include <linux/platform_device.h>
  48 #include <linux/bitops.h>
  49
  50 #include <asm/io.h>
  51 #include <asm/system.h>
  52
  53 #include <pcmcia/cs_types.h>
  54 #include <pcmcia/cs.h>
  55 #include <pcmcia/ss.h>
  56 #include "tcic.h"
  57
  58 #ifdef DEBUG
  59 static int pc_debug;
  60
  61 module_param(pc_debug, int, 0644);
  62 static const char version[] =
  63 "tcic.c 1.111 2000/02/15 04:13:12 (David Hinds)";
  64
  65 #define debug(lvl, fmt, arg...) do {                            \
  66         if (pc_debug > (lvl))                                   \
  67                 printk(KERN_DEBUG "tcic: " fmt , ## arg);       \
  68 } while (0)
  69 #else
  70 #define debug(lvl, fmt, arg...) do { } while (0)
  71 #endif
  72
  73 MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
  74 MODULE_DESCRIPTION("Databook TCIC-2 PCMCIA socket driver");
  75 MODULE_LICENSE("Dual MPL/GPL");
  76
  77 /*====================================================================*/
  78
  79 /* Parameters that can be set with 'insmod' */
  80
  81 /* The base port address of the TCIC-2 chip */
  82 static unsigned long tcic_base = TCIC_BASE;
  83
  84 /* Specify a socket number to ignore */
  85 static int ignore = -1;
  86
  87 /* Probe for safe interrupts? */
  88 static int do_scan = 1;
  89
  90 /* Bit map of interrupts to choose from */
  91 static u_int irq_mask = 0xffff;
  92 static int irq_list[16];
  93 static int irq_list_count;
  94
  95 /* The card status change interrupt -- 0 means autoselect */
  96 static int cs_irq;
  97
  98 /* Poll status interval -- 0 means default to interrupt */
  99 static int poll_interval;
 100
 101 /* Delay for card status double-checking */
 102 static int poll_quick = HZ/20;
 103
 104 /* CCLK external clock time, in nanoseconds.  70 ns = 14.31818 MHz */
 105 static int cycle_time = 70;
 106
 107 module_param(tcic_base, ulong, 0444);
 108 module_param(ignore, int, 0444);
 109 module_param(do_scan, int, 0444);
 110 module_param(irq_mask, int, 0444);
 111 module_param_array(irq_list, int, &irq_list_count, 0444);
 112 module_param(cs_irq, int, 0444);
 113 module_param(poll_interval, int, 0444);
 114 module_param(poll_quick, int, 0444);
 115 module_param(cycle_time, int, 0444);
 116
 117 /*====================================================================*/
 118
 119 static irqreturn_t tcic_interrupt(int irq, void *dev);
 120 static void tcic_timer(u_long data);
 121 static struct pccard_operations tcic_operations;
 122
 123 struct tcic_socket {
 124     u_short     psock;
 125     u_char      last_sstat;
 126     u_char      id;
 127     struct pcmcia_socket        socket;
 128 };
 129
 130 static struct timer_list poll_timer;
 131 static int tcic_timer_pending;
 132
 133 static int sockets;
 134 static struct tcic_socket socket_table[2];
 135
 136 /*====================================================================*/
 137
 138 /* Trick when selecting interrupts: the TCIC sktirq pin is supposed
 139    to map to irq 11, but is coded as 0 or 1 in the irq registers. */
 140 #define TCIC_IRQ(x) ((x) ? (((x) == 11) ? 1 : (x)) : 15)
 141
 142 #ifdef DEBUG_X
 143 static u_char tcic_getb(u_char reg)
 144 {
 145     u_char val = inb(tcic_base+reg);
 146     printk(KERN_DEBUG "tcic_getb(%#lx) = %#x\n", tcic_base+reg, val);
 147     return val;
 148 }
 149
 150 static u_short tcic_getw(u_char reg)
 151 {
 152     u_short val = inw(tcic_base+reg);
 153     printk(KERN_DEBUG "tcic_getw(%#lx) = %#x\n", tcic_base+reg, val);
 154     return val;
 155 }
 156
 157 static void tcic_setb(u_char reg, u_char data)
 158 {
 159     printk(KERN_DEBUG "tcic_setb(%#lx, %#x)\n", tcic_base+reg, data);
 160     outb(data, tcic_base+reg);
 161 }
 162
 163 static void tcic_setw(u_char reg, u_short data)
 164 {
 165     printk(KERN_DEBUG "tcic_setw(%#lx, %#x)\n", tcic_base+reg, data);
 166     outw(data, tcic_base+reg);
 167 }
 168 #else
 169 #define tcic_getb(reg) inb(tcic_base+reg)
 170 #define tcic_getw(reg) inw(tcic_base+reg)
 171 #define tcic_setb(reg, data) outb(data, tcic_base+reg)
 172 #define tcic_setw(reg, data) outw(data, tcic_base+reg)
 173 #endif
 174
 175 static void tcic_setl(u_char reg, u_int data)
 176 {
 177 #ifdef DEBUG_X
 178     printk(KERN_DEBUG "tcic_setl(%#x, %#lx)\n", tcic_base+reg, data);
 179 #endif
 180     outw(data & 0xffff, tcic_base+reg);
 181     outw(data >> 16, tcic_base+reg+2);
 182 }
 183
 184 static void tcic_aux_setb(u_short reg, u_char data)
 185 {
 186     u_char mode = (tcic_getb(TCIC_MODE) & TCIC_MODE_PGMMASK) | reg;
 187     tcic_setb(TCIC_MODE, mode);
 188     tcic_setb(TCIC_AUX, data);
 189 }
 190
 191 static u_short tcic_aux_getw(u_short reg)
 192 {
 193     u_char mode = (tcic_getb(TCIC_MODE) & TCIC_MODE_PGMMASK) | reg;
 194     tcic_setb(TCIC_MODE, mode);
 195     return tcic_getw(TCIC_AUX);
 196 }
 197
 198 static void tcic_aux_setw(u_short reg, u_short data)
 199 {
 200     u_char mode = (tcic_getb(TCIC_MODE) & TCIC_MODE_PGMMASK) | reg;
 201     tcic_setb(TCIC_MODE, mode);
 202     tcic_setw(TCIC_AUX, data);
 203 }
 204
 205 /*====================================================================*/
 206
 207 /* Time conversion functions */
 208
 209 static int to_cycles(int ns)
 210 {
 211     if (ns < 14)
 212         return 0;
 213     else
 214         return 2*(ns-14)/cycle_time;
 215 }
 216
 217 /*====================================================================*/
 218
 219 static volatile u_int irq_hits;
 220
 221 static irqreturn_t __init tcic_irq_count(int irq, void *dev)
 222 {
 223     irq_hits++;
 224     return IRQ_HANDLED;
 225 }
 226
 227 static u_int __init try_irq(int irq)
 228 {
 229     u_short cfg;
 230
 231     irq_hits = 0;
 232     if (request_irq(irq, tcic_irq_count, 0, "irq scan", tcic_irq_count) != 0)
 233         return -1;
 234     mdelay(10);
 235     if (irq_hits) {
 236         free_irq(irq, tcic_irq_count);
 237         return -1;
 238     }
 239
 240     /* Generate one interrupt */
 241     cfg = TCIC_SYSCFG_AUTOBUSY | 0x0a00;
 242     tcic_aux_setw(TCIC_AUX_SYSCFG, cfg | TCIC_IRQ(irq));
 243     tcic_setb(TCIC_IENA, TCIC_IENA_ERR | TCIC_IENA_CFG_HIGH);
 244     tcic_setb(TCIC_ICSR, TCIC_ICSR_ERR | TCIC_ICSR_JAM);
 245
 246     udelay(1000);
 247     free_irq(irq, tcic_irq_count);
 248
 249     /* Turn off interrupts */
 250     tcic_setb(TCIC_IENA, TCIC_IENA_CFG_OFF);
 251     while (tcic_getb(TCIC_ICSR))
 252         tcic_setb(TCIC_ICSR, TCIC_ICSR_JAM);
 253     tcic_aux_setw(TCIC_AUX_SYSCFG, cfg);
 254
 255     return (irq_hits != 1);
 256 }
 257
 258 static u_int __init irq_scan(u_int mask0)
 259 {
 260     u_int mask1;
 261     int i;
 262
 263 #ifdef __alpha__
 264 #define PIC 0x4d0
 265     /* Don't probe level-triggered interrupts -- reserved for PCI */
 266     int level_mask = inb_p(PIC) | (inb_p(PIC+1) << 8);
 267     if (level_mask)
 268         mask0 &= ~level_mask;
 269 #endif
 270
 271     mask1 = 0;
 272     if (do_scan) {
 273         for (i = 0; i < 16; i++)
 274             if ((mask0 & (1 << i)) && (try_irq(i) == 0))
 275                 mask1 |= (1 << i);
 276         for (i = 0; i < 16; i++)
 277             if ((mask1 & (1 << i)) && (try_irq(i) != 0)) {
 278                 mask1 ^= (1 << i);
 279             }
 280     }
 281
 282     if (mask1) {
 283         printk("scanned");
 284     } else {
 285         /* Fallback: just find interrupts that aren't in use */
 286         for (i = 0; i < 16; i++)
 287             if ((mask0 & (1 << i)) &&
 288                 (request_irq(i, tcic_irq_count, 0, "x", tcic_irq_count) == 0)) {
 289                 mask1 |= (1 << i);
 290                 free_irq(i, tcic_irq_count);
 291             }
 292         printk("default");
 293     }
 294
 295     printk(") = ");
 296     for (i = 0; i < 16; i++)
 297         if (mask1 & (1<<i))
 298             printk("%s%d", ((mask1 & ((1<<i)-1)) ? "," : ""), i);
 299     printk(" ");
 300
 301     return mask1;
 302 }
 303
 304 /*======================================================================
 305
 306     See if a card is present, powered up, in IO mode, and already
 307     bound to a (non-PCMCIA) Linux driver.
 308
 309     We make an exception for cards that look like serial devices.
 310
 311 ======================================================================*/
 312
 313 static int __init is_active(int s)
 314 {
 315     u_short scf1, ioctl, base, num;
 316     u_char pwr, sstat;
 317     u_int addr;
 318
 319     tcic_setl(TCIC_ADDR, (s << TCIC_ADDR_SS_SHFT)
 320               | TCIC_ADDR_INDREG | TCIC_SCF1(s));
 321     scf1 = tcic_getw(TCIC_DATA);
 322     pwr = tcic_getb(TCIC_PWR);
 323     sstat = tcic_getb(TCIC_SSTAT);
 324     addr = TCIC_IWIN(s, 0);
 325     tcic_setw(TCIC_ADDR, addr + TCIC_IBASE_X);
 326     base = tcic_getw(TCIC_DATA);
 327     tcic_setw(TCIC_ADDR, addr + TCIC_ICTL_X);
 328     ioctl = tcic_getw(TCIC_DATA);
 329
 330     if (ioctl & TCIC_ICTL_TINY)
 331         num = 1;
 332     else {
 333         num = (base ^ (base-1));
 334         base = base & (base-1);
 335     }
 336
 337     if ((sstat & TCIC_SSTAT_CD) && (pwr & TCIC_PWR_VCC(s)) &&
 338         (scf1 & TCIC_SCF1_IOSTS) && (ioctl & TCIC_ICTL_ENA) &&
 339         ((base & 0xfeef) != 0x02e8)) {
 340         struct resource *res = request_region(base, num, "tcic-2");
 341         if (!res) /* region is busy */
 342             return 1;
 343         release_region(base, num);
 344     }
 345
 346     return 0;
 347 }
 348
 349 /*======================================================================
 350
 351     This returns the revision code for the specified socket.
 352
 353 ======================================================================*/
 354
 355 static int __init get_tcic_id(void)
 356 {
 357     u_short id;
 358
 359     tcic_aux_setw(TCIC_AUX_TEST, TCIC_TEST_DIAG);
 360     id = tcic_aux_getw(TCIC_AUX_ILOCK);
 361     id = (id & TCIC_ILOCKTEST_ID_MASK) >> TCIC_ILOCKTEST_ID_SH;
 362     tcic_aux_setw(TCIC_AUX_TEST, 0);
 363     return id;
 364 }
 365
 366 /*====================================================================*/
 367
 368 static struct device_driver tcic_driver = {
 369         .name = "tcic-pcmcia",
 370         .bus = &platform_bus_type,
 371         .suspend = pcmcia_socket_dev_suspend,
 372         .resume = pcmcia_socket_dev_resume,
 373 };
 374
 375 static struct platform_device tcic_device = {
 376         .name = "tcic-pcmcia",
 377         .id = 0,
 378 };
 379
 380
 381 static int __init init_tcic(void)
 382 {
 383     int i, sock, ret = 0;
 384     u_int mask, scan;
 385
 386     if (driver_register(&tcic_driver))
 387         return -1;
 388
 389     printk(KERN_INFO "Databook TCIC-2 PCMCIA probe: ");
 390     sock = 0;
 391
 392     if (!request_region(tcic_base, 16, "tcic-2")) {
 393         printk("could not allocate ports,\n ");
 394         driver_unregister(&tcic_driver);
 395         return -ENODEV;
 396     }
 397     else {
 398         tcic_setw(TCIC_ADDR, 0);
 399         if (tcic_getw(TCIC_ADDR) == 0) {
 400             tcic_setw(TCIC_ADDR, 0xc3a5);
 401             if (tcic_getw(TCIC_ADDR) == 0xc3a5) sock = 2;
 402         }
 403         if (sock == 0) {
 404             /* See if resetting the controller does any good */
 405             tcic_setb(TCIC_SCTRL, TCIC_SCTRL_RESET);
 406             tcic_setb(TCIC_SCTRL, 0);
 407             tcic_setw(TCIC_ADDR, 0);
 408             if (tcic_getw(TCIC_ADDR) == 0) {
 409                 tcic_setw(TCIC_ADDR, 0xc3a5);
 410                 if (tcic_getw(TCIC_ADDR) == 0xc3a5) sock = 2;
 411             }
 412         }
 413     }
 414     if (sock == 0) {
 415         printk("not found.\n");
 416         release_region(tcic_base, 16);
 417         driver_unregister(&tcic_driver);
 418         return -ENODEV;
 419     }
 420
 421     sockets = 0;
 422     for (i = 0; i < sock; i++) {
 423         if ((i == ignore) || is_active(i)) continue;
 424         socket_table[sockets].psock = i;
 425         socket_table[sockets].id = get_tcic_id();
 426
 427         socket_table[sockets].socket.owner = THIS_MODULE;
 428         /* only 16-bit cards, memory windows must be size-aligned */
 429         /* No PCI or CardBus support */
 430         socket_table[sockets].socket.features = SS_CAP_PCCARD | SS_CAP_MEM_ALIGN;
 431         /* irq 14, 11, 10, 7, 6, 5, 4, 3 */
 432         socket_table[sockets].socket.irq_mask = 0x4cf8;
 433         /* 4K minimum window size */
 434         socket_table[sockets].socket.map_size = 0x1000;
 435         sockets++;
 436     }
 437
 438     switch (socket_table[0].id) {
 439     case TCIC_ID_DB86082:
 440         printk("DB86082"); break;
 441     case TCIC_ID_DB86082A:
 442         printk("DB86082A"); break;
 443     case TCIC_ID_DB86084:
 444         printk("DB86084"); break;
 445     case TCIC_ID_DB86084A:
 446         printk("DB86084A"); break;
 447     case TCIC_ID_DB86072:
 448         printk("DB86072"); break;
 449     case TCIC_ID_DB86184:
 450         printk("DB86184"); break;
 451     case TCIC_ID_DB86082B:
 452         printk("DB86082B"); break;
 453     default:
 454         printk("Unknown ID 0x%02x", socket_table[0].id);
 455     }
 456
 457     /* Set up polling */
 458     poll_timer.function = &tcic_timer;
 459     poll_timer.data = 0;
 460     init_timer(&poll_timer);
 461
 462     /* Build interrupt mask */
 463     printk(", %d sockets\n" KERN_INFO "  irq list (", sockets);
 464     if (irq_list_count == 0)
 465         mask = irq_mask;
 466     else
 467         for (i = mask = 0; i < irq_list_count; i++)
 468             mask |= (1<<irq_list[i]);
 469
 470     /* irq 14, 11, 10, 7, 6, 5, 4, 3 */
 471     mask &= 0x4cf8;
 472     /* Scan interrupts */
 473     mask = irq_scan(mask);
 474     for (i=0;i<sockets;i++)
 475             socket_table[i].socket.irq_mask = mask;
 476
 477     /* Check for only two interrupts available */
 478     scan = (mask & (mask-1));
 479     if (((scan & (scan-1)) == 0) && (poll_interval == 0))
 480         poll_interval = HZ;
 481
 482     if (poll_interval == 0) {
 483         /* Avoid irq 12 unless it is explicitly requested */
 484         u_int cs_mask = mask & ((cs_irq) ? (1<<cs_irq) : ~(1<<12));
 485         for (i = 15; i > 0; i--)
 486             if ((cs_mask & (1 << i)) &&
 487                 (request_irq(i, tcic_interrupt, 0, "tcic",
 488                              tcic_interrupt) == 0))
 489                 break;
 490         cs_irq = i;
 491         if (cs_irq == 0) poll_interval = HZ;
 492     }
 493
 494     if (socket_table[0].socket.irq_mask & (1 << 11))
 495         printk("sktirq is irq 11, ");
 496     if (cs_irq != 0)
 497         printk("status change on irq %d\n", cs_irq);
 498     else
 499         printk("polled status, interval = %d ms\n",
 500                poll_interval * 1000 / HZ);
 501
 502     for (i = 0; i < sockets; i++) {
 503         tcic_setw(TCIC_ADDR+2, socket_table[i].psock << TCIC_SS_SHFT);
 504         socket_table[i].last_sstat = tcic_getb(TCIC_SSTAT);
 505     }
 506
 507     /* jump start interrupt handler, if needed */
 508     tcic_interrupt(0, NULL);
 509
 510     platform_device_register(&tcic_device);
 511
 512     for (i = 0; i < sockets; i++) {
 513             socket_table[i].socket.ops = &tcic_operations;
 514             socket_table[i].socket.resource_ops = &pccard_nonstatic_ops;
 515             socket_table[i].socket.dev.parent = &tcic_device.dev;
 516             ret = pcmcia_register_socket(&socket_table[i].socket);
 517             if (ret && i)
 518                     pcmcia_unregister_socket(&socket_table[0].socket);
 519     }
 520
 521     return ret;
 522
 523     return 0;
 524
 525 } /* init_tcic */
 526
 527 /*====================================================================*/
 528
 529 static void __exit exit_tcic(void)
 530 {
 531     int i;
 532
 533     del_timer_sync(&poll_timer);
 534     if (cs_irq != 0) {
 535         tcic_aux_setw(TCIC_AUX_SYSCFG, TCIC_SYSCFG_AUTOBUSY|0x0a00);
 536         free_irq(cs_irq, tcic_interrupt);
 537     }
 538     release_region(tcic_base, 16);
 539
 540     for (i = 0; i < sockets; i++) {
 541             pcmcia_unregister_socket(&socket_table[i].socket);
 542     }
 543
 544     platform_device_unregister(&tcic_device);
 545     driver_unregister(&tcic_driver);
 546 } /* exit_tcic */
 547
 548 /*====================================================================*/
 549
 550 static irqreturn_t tcic_interrupt(int irq, void *dev)
 551 {
 552     int i, quick = 0;
 553     u_char latch, sstat;
 554     u_short psock;
 555     u_int events;
 556     static volatile int active = 0;
 557
 558     if (active) {
 559         printk(KERN_NOTICE "tcic: reentered interrupt handler!\n");
 560         return IRQ_NONE;
 561     } else
 562         active = 1;
 563
 564     debug(2, "tcic_interrupt()\n");
 565
 566     for (i = 0; i < sockets; i++) {
 567         psock = socket_table[i].psock;
 568         tcic_setl(TCIC_ADDR, (psock << TCIC_ADDR_SS_SHFT)
 569                   | TCIC_ADDR_INDREG | TCIC_SCF1(psock));
 570         sstat = tcic_getb(TCIC_SSTAT);
 571         latch = sstat ^ socket_table[psock].last_sstat;
 572         socket_table[i].last_sstat = sstat;
 573         if (tcic_getb(TCIC_ICSR) & TCIC_ICSR_CDCHG) {
 574             tcic_setb(TCIC_ICSR, TCIC_ICSR_CLEAR);
 575             quick = 1;
 576         }
 577         if (latch == 0)
 578             continue;
 579         events = (latch & TCIC_SSTAT_CD) ? SS_DETECT : 0;
 580         events |= (latch & TCIC_SSTAT_WP) ? SS_WRPROT : 0;
 581         if (tcic_getw(TCIC_DATA) & TCIC_SCF1_IOSTS) {
 582             events |= (latch & TCIC_SSTAT_LBAT1) ? SS_STSCHG : 0;
 583         } else {
 584             events |= (latch & TCIC_SSTAT_RDY) ? SS_READY : 0;
 585             events |= (latch & TCIC_SSTAT_LBAT1) ? SS_BATDEAD : 0;
 586             events |= (latch & TCIC_SSTAT_LBAT2) ? SS_BATWARN : 0;
 587         }
 588         if (events) {
 589                 pcmcia_parse_events(&socket_table[i].socket, events);
 590         }
 591     }
 592
 593     /* Schedule next poll, if needed */
 594     if (((cs_irq == 0) || quick) && (!tcic_timer_pending)) {
 595         poll_timer.expires = jiffies + (quick ? poll_quick : poll_interval);
 596         add_timer(&poll_timer);
 597         tcic_timer_pending = 1;
 598     }
 599     active = 0;
 600
 601     debug(2, "interrupt done\n");
 602     return IRQ_HANDLED;
 603 } /* tcic_interrupt */
 604
 605 static void tcic_timer(u_long data)
 606 {
 607     debug(2, "tcic_timer()\n");
 608     tcic_timer_pending = 0;
 609     tcic_interrupt(0, NULL);
 610 } /* tcic_timer */
 611
 612 /*====================================================================*/
 613
 614 static int tcic_get_status(struct pcmcia_socket *sock, u_int *value)
 615 {
 616     u_short psock = container_of(sock, struct tcic_socket, socket)->psock;
 617     u_char reg;
 618
 619     tcic_setl(TCIC_ADDR, (psock << TCIC_ADDR_SS_SHFT)
 620               | TCIC_ADDR_INDREG | TCIC_SCF1(psock));
 621     reg = tcic_getb(TCIC_SSTAT);
 622     *value  = (reg & TCIC_SSTAT_CD) ? SS_DETECT : 0;
 623     *value |= (reg & TCIC_SSTAT_WP) ? SS_WRPROT : 0;
 624     if (tcic_getw(TCIC_DATA) & TCIC_SCF1_IOSTS) {
 625         *value |= (reg & TCIC_SSTAT_LBAT1) ? SS_STSCHG : 0;
 626     } else {
 627         *value |= (reg & TCIC_SSTAT_RDY) ? SS_READY : 0;
 628         *value |= (reg & TCIC_SSTAT_LBAT1) ? SS_BATDEAD : 0;
 629         *value |= (reg & TCIC_SSTAT_LBAT2) ? SS_BATWARN : 0;
 630     }
 631     reg = tcic_getb(TCIC_PWR);
 632     if (reg & (TCIC_PWR_VCC(psock)|TCIC_PWR_VPP(psock)))
 633         *value |= SS_POWERON;
 634     debug(1, "GetStatus(%d) = %#2.2x\n", psock, *value);
 635     return 0;
 636 } /* tcic_get_status */
 637
 638 /*====================================================================*/
 639
 640 static int tcic_set_socket(struct pcmcia_socket *sock, socket_state_t *state)
 641 {
 642     u_short psock = container_of(sock, struct tcic_socket, socket)->psock;
 643     u_char reg;
 644     u_short scf1, scf2;
 645
 646     debug(1, "SetSocket(%d, flags %#3.3x, Vcc %d, Vpp %d, "
 647           "io_irq %d, csc_mask %#2.2x)\n", psock, state->flags,
 648           state->Vcc, state->Vpp, state->io_irq, state->csc_mask);
 649     tcic_setw(TCIC_ADDR+2, (psock << TCIC_SS_SHFT) | TCIC_ADR2_INDREG);
 650
 651     reg = tcic_getb(TCIC_PWR);
 652     reg &= ~(TCIC_PWR_VCC(psock) | TCIC_PWR_VPP(psock));
 653
 654     if (state->Vcc == 50) {
 655         switch (state->Vpp) {
 656         case 0:   reg |= TCIC_PWR_VCC(psock) | TCIC_PWR_VPP(psock); break;
 657         case 50:  reg |= TCIC_PWR_VCC(psock); break;
 658         case 120: reg |= TCIC_PWR_VPP(psock); break;
 659         default:  return -EINVAL;
 660         }
 661     } else if (state->Vcc != 0)
 662         return -EINVAL;
 663
 664     if (reg != tcic_getb(TCIC_PWR))
 665         tcic_setb(TCIC_PWR, reg);
 666
 667     reg = TCIC_ILOCK_HOLD_CCLK | TCIC_ILOCK_CWAIT;
 668     if (state->flags & SS_OUTPUT_ENA) {
 669         tcic_setb(TCIC_SCTRL, TCIC_SCTRL_ENA);
 670         reg |= TCIC_ILOCK_CRESENA;
 671     } else
 672         tcic_setb(TCIC_SCTRL, 0);
 673     if (state->flags & SS_RESET)
 674         reg |= TCIC_ILOCK_CRESET;
 675     tcic_aux_setb(TCIC_AUX_ILOCK, reg);
 676
 677     tcic_setw(TCIC_ADDR, TCIC_SCF1(psock));
 678     scf1 = TCIC_SCF1_FINPACK;
 679     scf1 |= TCIC_IRQ(state->io_irq);
 680     if (state->flags & SS_IOCARD) {
 681         scf1 |= TCIC_SCF1_IOSTS;
 682         if (state->flags & SS_SPKR_ENA)
 683             scf1 |= TCIC_SCF1_SPKR;
 684         if (state->flags & SS_DMA_MODE)
 685             scf1 |= TCIC_SCF1_DREQ2 << TCIC_SCF1_DMA_SHIFT;
 686     }
 687     tcic_setw(TCIC_DATA, scf1);
 688
 689     /* Some general setup stuff, and configure status interrupt */
 690     reg = TCIC_WAIT_ASYNC | TCIC_WAIT_SENSE | to_cycles(250);
 691     tcic_aux_setb(TCIC_AUX_WCTL, reg);
 692     tcic_aux_setw(TCIC_AUX_SYSCFG, TCIC_SYSCFG_AUTOBUSY|0x0a00|
 693                   TCIC_IRQ(cs_irq));
 694
 695     /* Card status change interrupt mask */
 696     tcic_setw(TCIC_ADDR, TCIC_SCF2(psock));
 697     scf2 = TCIC_SCF2_MALL;
 698     if (state->csc_mask & SS_DETECT) scf2 &= ~TCIC_SCF2_MCD;
 699     if (state->flags & SS_IOCARD) {
 700         if (state->csc_mask & SS_STSCHG) reg &= ~TCIC_SCF2_MLBAT1;
 701     } else {
 702         if (state->csc_mask & SS_BATDEAD) reg &= ~TCIC_SCF2_MLBAT1;
 703         if (state->csc_mask & SS_BATWARN) reg &= ~TCIC_SCF2_MLBAT2;
 704         if (state->csc_mask & SS_READY) reg &= ~TCIC_SCF2_MRDY;
 705     }
 706     tcic_setw(TCIC_DATA, scf2);
 707     /* For the ISA bus, the irq should be active-high totem-pole */
 708     tcic_setb(TCIC_IENA, TCIC_IENA_CDCHG | TCIC_IENA_CFG_HIGH);
 709
 710     return 0;
 711 } /* tcic_set_socket */
 712
 713 /*====================================================================*/
 714
 715 static int tcic_set_io_map(struct pcmcia_socket *sock, struct pccard_io_map *io)
 716 {
 717     u_short psock = container_of(sock, struct tcic_socket, socket)->psock;
 718     u_int addr;
 719     u_short base, len, ioctl;
 720
 721     debug(1, "SetIOMap(%d, %d, %#2.2x, %d ns, "
 722           "%#lx-%#lx)\n", psock, io->map, io->flags,
 723           io->speed, io->start, io->stop);
 724     if ((io->map > 1) || (io->start > 0xffff) || (io->stop > 0xffff) ||
 725         (io->stop < io->start)) return -EINVAL;
 726     tcic_setw(TCIC_ADDR+2, TCIC_ADR2_INDREG | (psock << TCIC_SS_SHFT));
 727     addr = TCIC_IWIN(psock, io->map);
 728
 729     base = io->start; len = io->stop - io->start;
 730     /* Check to see that len+1 is power of two, etc */
 731     if ((len & (len+1)) || (base & len)) return -EINVAL;
 732     base |= (len+1)>>1;
 733     tcic_setw(TCIC_ADDR, addr + TCIC_IBASE_X);
 734     tcic_setw(TCIC_DATA, base);
 735
 736     ioctl  = (psock << TCIC_ICTL_SS_SHFT);
 737     ioctl |= (len == 0) ? TCIC_ICTL_TINY : 0;
 738     ioctl |= (io->flags & MAP_ACTIVE) ? TCIC_ICTL_ENA : 0;
 739     ioctl |= to_cycles(io->speed) & TCIC_ICTL_WSCNT_MASK;
 740     if (!(io->flags & MAP_AUTOSZ)) {
 741         ioctl |= TCIC_ICTL_QUIET;
 742         ioctl |= (io->flags & MAP_16BIT) ? TCIC_ICTL_BW_16 : TCIC_ICTL_BW_8;
 743     }
 744     tcic_setw(TCIC_ADDR, addr + TCIC_ICTL_X);
 745     tcic_setw(TCIC_DATA, ioctl);
 746
 747     return 0;
 748 } /* tcic_set_io_map */
 749
 750 /*====================================================================*/
 751
 752 static int tcic_set_mem_map(struct pcmcia_socket *sock, struct pccard_mem_map *mem)
 753 {
 754     u_short psock = container_of(sock, struct tcic_socket, socket)->psock;
 755     u_short addr, ctl;
 756     u_long base, len, mmap;
 757
 758     debug(1, "SetMemMap(%d, %d, %#2.2x, %d ns, "
 759           "%#llx-%#llx, %#x)\n", psock, mem->map, mem->flags,
 760           mem->speed, (unsigned long long)mem->res->start,
 761           (unsigned long long)mem->res->end, mem->card_start);
 762     if ((mem->map > 3) || (mem->card_start > 0x3ffffff) ||
 763         (mem->res->start > 0xffffff) || (mem->res->end > 0xffffff) ||
 764         (mem->res->start > mem->res->end) || (mem->speed > 1000))
 765         return -EINVAL;
 766     tcic_setw(TCIC_ADDR+2, TCIC_ADR2_INDREG | (psock << TCIC_SS_SHFT));
 767     addr = TCIC_MWIN(psock, mem->map);
 768
 769     base = mem->res->start; len = mem->res->end - mem->res->start;
 770     if ((len & (len+1)) || (base & len)) return -EINVAL;
 771     if (len == 0x0fff)
 772         base = (base >> TCIC_MBASE_HA_SHFT) | TCIC_MBASE_4K_BIT;
 773     else
 774         base = (base | (len+1)>>1) >> TCIC_MBASE_HA_SHFT;
 775     tcic_setw(TCIC_ADDR, addr + TCIC_MBASE_X);
 776     tcic_setw(TCIC_DATA, base);
 777
 778     mmap = mem->card_start - mem->res->start;
 779     mmap = (mmap >> TCIC_MMAP_CA_SHFT) & TCIC_MMAP_CA_MASK;
 780     if (mem->flags & MAP_ATTRIB) mmap |= TCIC_MMAP_REG;
 781     tcic_setw(TCIC_ADDR, addr + TCIC_MMAP_X);
 782     tcic_setw(TCIC_DATA, mmap);
 783
 784     ctl  = TCIC_MCTL_QUIET | (psock << TCIC_MCTL_SS_SHFT);
 785     ctl |= to_cycles(mem->speed) & TCIC_MCTL_WSCNT_MASK;
 786     ctl |= (mem->flags & MAP_16BIT) ? 0 : TCIC_MCTL_B8;
 787     ctl |= (mem->flags & MAP_WRPROT) ? TCIC_MCTL_WP : 0;
 788     ctl |= (mem->flags & MAP_ACTIVE) ? TCIC_MCTL_ENA : 0;
 789     tcic_setw(TCIC_ADDR, addr + TCIC_MCTL_X);
 790     tcic_setw(TCIC_DATA, ctl);
 791
 792     return 0;
 793 } /* tcic_set_mem_map */
 794
 795 /*====================================================================*/
 796
 797 static int tcic_init(struct pcmcia_socket *s)
 798 {
 799         int i;
 800         struct resource res = { .start = 0, .end = 0x1000 };
 801         pccard_io_map io = { 0, 0, 0, 0, 1 };
 802         pccard_mem_map mem = { .res = &res, };
 803
 804         for (i = 0; i < 2; i++) {
 805                 io.map = i;
 806                 tcic_set_io_map(s, &io);
 807         }
 808         for (i = 0; i < 5; i++) {
 809                 mem.map = i;
 810                 tcic_set_mem_map(s, &mem);
 811         }
 812         return 0;
 813 }
 814
 815 static struct pccard_operations tcic_operations = {
 816         .init              = tcic_init,
 817         .get_status        = tcic_get_status,
 818         .set_socket        = tcic_set_socket,
 819         .set_io_map        = tcic_set_io_map,
 820         .set_mem_map       = tcic_set_mem_map,
 821 };
 822
 823 /*====================================================================*/
 824
 825 module_init(init_tcic);
 826 module_exit(exit_tcic);