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1/*======================================================================2 3 Device driver for Databook TCIC-2 PCMCIA controller4 5 tcic.c 1.111 2000/02/15 04:13:126 7 The contents of this file are subject to the Mozilla Public8 License Version 1.1 (the "License"); you may not use this file9 except in compliance with the License. You may obtain a copy of10 the License at http://www.mozilla.org/MPL/11 12 Software distributed under the License is distributed on an "AS13 IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or14 implied. See the License for the specific language governing15 rights and limitations under the License.16 17 The initial developer of the original code is David A. Hinds18 <dahinds@users.sourceforge.net>. Portions created by David A. Hinds19 are Copyright (C) 1999 David A. Hinds. All Rights Reserved.20 21 Alternatively, the contents of this file may be used under the22 terms of the GNU General Public License version 2 (the "GPL"), in which23 case the provisions of the GPL are applicable instead of the24 above. If you wish to allow the use of your version of this file25 only under the terms of the GPL and not to allow others to use26 your version of this file under the MPL, indicate your decision27 by deleting the provisions above and replace them with the notice28 and other provisions required by the GPL. If you do not delete29 the provisions above, a recipient may use your version of this30 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/timer.h>43#include <linux/ioport.h>44#include <linux/delay.h>45#include <linux/workqueue.h>46#include <linux/platform_device.h>47#include <linux/bitops.h>48 49#include <asm/io.h>50 51#include <pcmcia/ss.h>52#include "tcic.h"53 54MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");55MODULE_DESCRIPTION("Databook TCIC-2 PCMCIA socket driver");56MODULE_LICENSE("Dual MPL/GPL");57 58/*====================================================================*/59 60/* Parameters that can be set with 'insmod' */61 62/* The base port address of the TCIC-2 chip */63static unsigned long tcic_base = TCIC_BASE;64 65/* Specify a socket number to ignore */66static int ignore = -1;67 68/* Probe for safe interrupts? */69static int do_scan = 1;70 71/* Bit map of interrupts to choose from */72static u_int irq_mask = 0xffff;73static int irq_list[16];74static unsigned int irq_list_count;75 76/* The card status change interrupt -- 0 means autoselect */77static int cs_irq;78 79/* Poll status interval -- 0 means default to interrupt */80static int poll_interval;81 82/* Delay for card status double-checking */83static int poll_quick = HZ/20;84 85/* CCLK external clock time, in nanoseconds. 70 ns = 14.31818 MHz */86static int cycle_time = 70;87 88module_param_hw(tcic_base, ulong, ioport, 0444);89module_param(ignore, int, 0444);90module_param(do_scan, int, 0444);91module_param_hw(irq_mask, int, other, 0444);92module_param_hw_array(irq_list, int, irq, &irq_list_count, 0444);93module_param_hw(cs_irq, int, irq, 0444);94module_param(poll_interval, int, 0444);95module_param(poll_quick, int, 0444);96module_param(cycle_time, int, 0444);97 98/*====================================================================*/99 100static irqreturn_t tcic_interrupt(int irq, void *dev);101static void tcic_timer(struct timer_list *unused);102static struct pccard_operations tcic_operations;103 104struct tcic_socket {105 u_short psock;106 u_char last_sstat;107 u_char id;108 struct pcmcia_socket socket;109};110 111static struct timer_list poll_timer;112static int tcic_timer_pending;113 114static int sockets;115static struct tcic_socket socket_table[2];116 117/*====================================================================*/118 119/* Trick when selecting interrupts: the TCIC sktirq pin is supposed120 to map to irq 11, but is coded as 0 or 1 in the irq registers. */121#define TCIC_IRQ(x) ((x) ? (((x) == 11) ? 1 : (x)) : 15)122 123#ifdef DEBUG_X124static u_char tcic_getb(u_char reg)125{126 u_char val = inb(tcic_base+reg);127 printk(KERN_DEBUG "tcic_getb(%#lx) = %#x\n", tcic_base+reg, val);128 return val;129}130 131static u_short tcic_getw(u_char reg)132{133 u_short val = inw(tcic_base+reg);134 printk(KERN_DEBUG "tcic_getw(%#lx) = %#x\n", tcic_base+reg, val);135 return val;136}137 138static void tcic_setb(u_char reg, u_char data)139{140 printk(KERN_DEBUG "tcic_setb(%#lx, %#x)\n", tcic_base+reg, data);141 outb(data, tcic_base+reg);142}143 144static void tcic_setw(u_char reg, u_short data)145{146 printk(KERN_DEBUG "tcic_setw(%#lx, %#x)\n", tcic_base+reg, data);147 outw(data, tcic_base+reg);148}149#else150#define tcic_getb(reg) inb(tcic_base+reg)151#define tcic_getw(reg) inw(tcic_base+reg)152#define tcic_setb(reg, data) outb(data, tcic_base+reg)153#define tcic_setw(reg, data) outw(data, tcic_base+reg)154#endif155 156static void tcic_setl(u_char reg, u_int data)157{158#ifdef DEBUG_X159 printk(KERN_DEBUG "tcic_setl(%#x, %#lx)\n", tcic_base+reg, data);160#endif161 outw(data & 0xffff, tcic_base+reg);162 outw(data >> 16, tcic_base+reg+2);163}164 165static void tcic_aux_setb(u_short reg, u_char data)166{167 u_char mode = (tcic_getb(TCIC_MODE) & TCIC_MODE_PGMMASK) | reg;168 tcic_setb(TCIC_MODE, mode);169 tcic_setb(TCIC_AUX, data);170}171 172static u_short tcic_aux_getw(u_short reg)173{174 u_char mode = (tcic_getb(TCIC_MODE) & TCIC_MODE_PGMMASK) | reg;175 tcic_setb(TCIC_MODE, mode);176 return tcic_getw(TCIC_AUX);177}178 179static void tcic_aux_setw(u_short reg, u_short data)180{181 u_char mode = (tcic_getb(TCIC_MODE) & TCIC_MODE_PGMMASK) | reg;182 tcic_setb(TCIC_MODE, mode);183 tcic_setw(TCIC_AUX, data);184}185 186/*====================================================================*/187 188/* Time conversion functions */189 190static int to_cycles(int ns)191{192 if (ns < 14)193 return 0;194 else195 return 2*(ns-14)/cycle_time;196}197 198/*====================================================================*/199 200static volatile u_int irq_hits;201 202static irqreturn_t __init tcic_irq_count(int irq, void *dev)203{204 irq_hits++;205 return IRQ_HANDLED;206}207 208static u_int __init try_irq(int irq)209{210 u_short cfg;211 212 irq_hits = 0;213 if (request_irq(irq, tcic_irq_count, 0, "irq scan", tcic_irq_count) != 0)214 return -1;215 mdelay(10);216 if (irq_hits) {217 free_irq(irq, tcic_irq_count);218 return -1;219 }220 221 /* Generate one interrupt */222 cfg = TCIC_SYSCFG_AUTOBUSY | 0x0a00;223 tcic_aux_setw(TCIC_AUX_SYSCFG, cfg | TCIC_IRQ(irq));224 tcic_setb(TCIC_IENA, TCIC_IENA_ERR | TCIC_IENA_CFG_HIGH);225 tcic_setb(TCIC_ICSR, TCIC_ICSR_ERR | TCIC_ICSR_JAM);226 227 udelay(1000);228 free_irq(irq, tcic_irq_count);229 230 /* Turn off interrupts */231 tcic_setb(TCIC_IENA, TCIC_IENA_CFG_OFF);232 while (tcic_getb(TCIC_ICSR))233 tcic_setb(TCIC_ICSR, TCIC_ICSR_JAM);234 tcic_aux_setw(TCIC_AUX_SYSCFG, cfg);235 236 return (irq_hits != 1);237}238 239static u_int __init irq_scan(u_int mask0)240{241 u_int mask1;242 int i;243 244#ifdef __alpha__245#define PIC 0x4d0246 /* Don't probe level-triggered interrupts -- reserved for PCI */247 int level_mask = inb_p(PIC) | (inb_p(PIC+1) << 8);248 if (level_mask)249 mask0 &= ~level_mask;250#endif251 252 mask1 = 0;253 if (do_scan) {254 for (i = 0; i < 16; i++)255 if ((mask0 & (1 << i)) && (try_irq(i) == 0))256 mask1 |= (1 << i);257 for (i = 0; i < 16; i++)258 if ((mask1 & (1 << i)) && (try_irq(i) != 0)) {259 mask1 ^= (1 << i);260 }261 }262 263 if (mask1) {264 printk("scanned");265 } else {266 /* Fallback: just find interrupts that aren't in use */267 for (i = 0; i < 16; i++)268 if ((mask0 & (1 << i)) &&269 (request_irq(i, tcic_irq_count, 0, "x", tcic_irq_count) == 0)) {270 mask1 |= (1 << i);271 free_irq(i, tcic_irq_count);272 }273 printk("default");274 }275 276 printk(") = ");277 for (i = 0; i < 16; i++)278 if (mask1 & (1<<i))279 printk("%s%d", ((mask1 & ((1<<i)-1)) ? "," : ""), i);280 printk(" ");281 282 return mask1;283}284 285/*======================================================================286 287 See if a card is present, powered up, in IO mode, and already288 bound to a (non-PCMCIA) Linux driver.289 290 We make an exception for cards that look like serial devices.291 292======================================================================*/293 294static int __init is_active(int s)295{296 u_short scf1, ioctl, base, num;297 u_char pwr, sstat;298 u_int addr;299 300 tcic_setl(TCIC_ADDR, (s << TCIC_ADDR_SS_SHFT)301 | TCIC_ADDR_INDREG | TCIC_SCF1(s));302 scf1 = tcic_getw(TCIC_DATA);303 pwr = tcic_getb(TCIC_PWR);304 sstat = tcic_getb(TCIC_SSTAT);305 addr = TCIC_IWIN(s, 0);306 tcic_setw(TCIC_ADDR, addr + TCIC_IBASE_X);307 base = tcic_getw(TCIC_DATA);308 tcic_setw(TCIC_ADDR, addr + TCIC_ICTL_X);309 ioctl = tcic_getw(TCIC_DATA);310 311 if (ioctl & TCIC_ICTL_TINY)312 num = 1;313 else {314 num = (base ^ (base-1));315 base = base & (base-1);316 }317 318 if ((sstat & TCIC_SSTAT_CD) && (pwr & TCIC_PWR_VCC(s)) &&319 (scf1 & TCIC_SCF1_IOSTS) && (ioctl & TCIC_ICTL_ENA) &&320 ((base & 0xfeef) != 0x02e8)) {321 struct resource *res = request_region(base, num, "tcic-2");322 if (!res) /* region is busy */323 return 1;324 release_region(base, num);325 }326 327 return 0;328}329 330/*======================================================================331 332 This returns the revision code for the specified socket.333 334======================================================================*/335 336static int __init get_tcic_id(void)337{338 u_short id;339 340 tcic_aux_setw(TCIC_AUX_TEST, TCIC_TEST_DIAG);341 id = tcic_aux_getw(TCIC_AUX_ILOCK);342 id = (id & TCIC_ILOCKTEST_ID_MASK) >> TCIC_ILOCKTEST_ID_SH;343 tcic_aux_setw(TCIC_AUX_TEST, 0);344 return id;345}346 347/*====================================================================*/348 349static struct platform_driver tcic_driver = {350 .driver = {351 .name = "tcic-pcmcia",352 },353};354 355static struct platform_device tcic_device = {356 .name = "tcic-pcmcia",357 .id = 0,358};359 360 361static int __init init_tcic(void)362{363 int i, sock, ret = 0;364 u_int mask, scan;365 366 if (platform_driver_register(&tcic_driver))367 return -1;368 369 printk(KERN_INFO "Databook TCIC-2 PCMCIA probe: ");370 sock = 0;371 372 if (!request_region(tcic_base, 16, "tcic-2")) {373 printk("could not allocate ports,\n ");374 platform_driver_unregister(&tcic_driver);375 return -ENODEV;376 }377 else {378 tcic_setw(TCIC_ADDR, 0);379 if (tcic_getw(TCIC_ADDR) == 0) {380 tcic_setw(TCIC_ADDR, 0xc3a5);381 if (tcic_getw(TCIC_ADDR) == 0xc3a5) sock = 2;382 }383 if (sock == 0) {384 /* See if resetting the controller does any good */385 tcic_setb(TCIC_SCTRL, TCIC_SCTRL_RESET);386 tcic_setb(TCIC_SCTRL, 0);387 tcic_setw(TCIC_ADDR, 0);388 if (tcic_getw(TCIC_ADDR) == 0) {389 tcic_setw(TCIC_ADDR, 0xc3a5);390 if (tcic_getw(TCIC_ADDR) == 0xc3a5) sock = 2;391 }392 }393 }394 if (sock == 0) {395 printk("not found.\n");396 release_region(tcic_base, 16);397 platform_driver_unregister(&tcic_driver);398 return -ENODEV;399 }400 401 sockets = 0;402 for (i = 0; i < sock; i++) {403 if ((i == ignore) || is_active(i)) continue;404 socket_table[sockets].psock = i;405 socket_table[sockets].id = get_tcic_id();406 407 socket_table[sockets].socket.owner = THIS_MODULE;408 /* only 16-bit cards, memory windows must be size-aligned */409 /* No PCI or CardBus support */410 socket_table[sockets].socket.features = SS_CAP_PCCARD | SS_CAP_MEM_ALIGN;411 /* irq 14, 11, 10, 7, 6, 5, 4, 3 */412 socket_table[sockets].socket.irq_mask = 0x4cf8;413 /* 4K minimum window size */414 socket_table[sockets].socket.map_size = 0x1000; 415 sockets++;416 }417 418 switch (socket_table[0].id) {419 case TCIC_ID_DB86082:420 printk("DB86082"); break;421 case TCIC_ID_DB86082A:422 printk("DB86082A"); break;423 case TCIC_ID_DB86084:424 printk("DB86084"); break;425 case TCIC_ID_DB86084A:426 printk("DB86084A"); break;427 case TCIC_ID_DB86072:428 printk("DB86072"); break;429 case TCIC_ID_DB86184:430 printk("DB86184"); break;431 case TCIC_ID_DB86082B:432 printk("DB86082B"); break;433 default:434 printk("Unknown ID 0x%02x", socket_table[0].id);435 }436 437 /* Set up polling */438 timer_setup(&poll_timer, tcic_timer, 0);439 440 /* Build interrupt mask */441 printk(KERN_CONT ", %d sockets\n", sockets);442 printk(KERN_INFO " irq list (");443 if (irq_list_count == 0)444 mask = irq_mask;445 else446 for (i = mask = 0; i < irq_list_count; i++)447 mask |= (1<<irq_list[i]);448 449 /* irq 14, 11, 10, 7, 6, 5, 4, 3 */450 mask &= 0x4cf8;451 /* Scan interrupts */452 mask = irq_scan(mask);453 for (i=0;i<sockets;i++)454 socket_table[i].socket.irq_mask = mask;455 456 /* Check for only two interrupts available */457 scan = (mask & (mask-1));458 if (((scan & (scan-1)) == 0) && (poll_interval == 0))459 poll_interval = HZ;460 461 if (poll_interval == 0) {462 /* Avoid irq 12 unless it is explicitly requested */463 u_int cs_mask = mask & ((cs_irq) ? (1<<cs_irq) : ~(1<<12));464 for (i = 15; i > 0; i--)465 if ((cs_mask & (1 << i)) &&466 (request_irq(i, tcic_interrupt, 0, "tcic",467 tcic_interrupt) == 0))468 break;469 cs_irq = i;470 if (cs_irq == 0) poll_interval = HZ;471 }472 473 if (socket_table[0].socket.irq_mask & (1 << 11))474 printk("sktirq is irq 11, ");475 if (cs_irq != 0)476 printk("status change on irq %d\n", cs_irq);477 else478 printk("polled status, interval = %d ms\n",479 poll_interval * 1000 / HZ);480 481 for (i = 0; i < sockets; i++) {482 tcic_setw(TCIC_ADDR+2, socket_table[i].psock << TCIC_SS_SHFT);483 socket_table[i].last_sstat = tcic_getb(TCIC_SSTAT);484 }485 486 /* jump start interrupt handler, if needed */487 tcic_interrupt(0, NULL);488 489 platform_device_register(&tcic_device);490 491 for (i = 0; i < sockets; i++) {492 socket_table[i].socket.ops = &tcic_operations;493 socket_table[i].socket.resource_ops = &pccard_nonstatic_ops;494 socket_table[i].socket.dev.parent = &tcic_device.dev;495 ret = pcmcia_register_socket(&socket_table[i].socket);496 if (ret && i)497 pcmcia_unregister_socket(&socket_table[0].socket);498 }499 500 return ret;501 502 return 0;503 504} /* init_tcic */505 506/*====================================================================*/507 508static void __exit exit_tcic(void)509{510 int i;511 512 del_timer_sync(&poll_timer);513 if (cs_irq != 0) {514 tcic_aux_setw(TCIC_AUX_SYSCFG, TCIC_SYSCFG_AUTOBUSY|0x0a00);515 free_irq(cs_irq, tcic_interrupt);516 }517 release_region(tcic_base, 16);518 519 for (i = 0; i < sockets; i++) {520 pcmcia_unregister_socket(&socket_table[i].socket); 521 }522 523 platform_device_unregister(&tcic_device);524 platform_driver_unregister(&tcic_driver);525} /* exit_tcic */526 527/*====================================================================*/528 529static irqreturn_t tcic_interrupt(int irq, void *dev)530{531 int i, quick = 0;532 u_char latch, sstat;533 u_short psock;534 u_int events;535 static volatile int active = 0;536 537 if (active) {538 printk(KERN_NOTICE "tcic: reentered interrupt handler!\n");539 return IRQ_NONE;540 } else541 active = 1;542 543 pr_debug("tcic_interrupt()\n");544 545 for (i = 0; i < sockets; i++) {546 psock = socket_table[i].psock;547 tcic_setl(TCIC_ADDR, (psock << TCIC_ADDR_SS_SHFT)548 | TCIC_ADDR_INDREG | TCIC_SCF1(psock));549 sstat = tcic_getb(TCIC_SSTAT);550 latch = sstat ^ socket_table[psock].last_sstat;551 socket_table[i].last_sstat = sstat;552 if (tcic_getb(TCIC_ICSR) & TCIC_ICSR_CDCHG) {553 tcic_setb(TCIC_ICSR, TCIC_ICSR_CLEAR);554 quick = 1;555 }556 if (latch == 0)557 continue;558 events = (latch & TCIC_SSTAT_CD) ? SS_DETECT : 0;559 events |= (latch & TCIC_SSTAT_WP) ? SS_WRPROT : 0;560 if (tcic_getw(TCIC_DATA) & TCIC_SCF1_IOSTS) {561 events |= (latch & TCIC_SSTAT_LBAT1) ? SS_STSCHG : 0;562 } else {563 events |= (latch & TCIC_SSTAT_RDY) ? SS_READY : 0;564 events |= (latch & TCIC_SSTAT_LBAT1) ? SS_BATDEAD : 0;565 events |= (latch & TCIC_SSTAT_LBAT2) ? SS_BATWARN : 0;566 }567 if (events) {568 pcmcia_parse_events(&socket_table[i].socket, events);569 }570 }571 572 /* Schedule next poll, if needed */573 if (((cs_irq == 0) || quick) && (!tcic_timer_pending)) {574 poll_timer.expires = jiffies + (quick ? poll_quick : poll_interval);575 add_timer(&poll_timer);576 tcic_timer_pending = 1;577 }578 active = 0;579 580 pr_debug("interrupt done\n");581 return IRQ_HANDLED;582} /* tcic_interrupt */583 584static void tcic_timer(struct timer_list *unused)585{586 pr_debug("tcic_timer()\n");587 tcic_timer_pending = 0;588 tcic_interrupt(0, NULL);589} /* tcic_timer */590 591/*====================================================================*/592 593static int tcic_get_status(struct pcmcia_socket *sock, u_int *value)594{595 u_short psock = container_of(sock, struct tcic_socket, socket)->psock;596 u_char reg;597 598 tcic_setl(TCIC_ADDR, (psock << TCIC_ADDR_SS_SHFT)599 | TCIC_ADDR_INDREG | TCIC_SCF1(psock));600 reg = tcic_getb(TCIC_SSTAT);601 *value = (reg & TCIC_SSTAT_CD) ? SS_DETECT : 0;602 *value |= (reg & TCIC_SSTAT_WP) ? SS_WRPROT : 0;603 if (tcic_getw(TCIC_DATA) & TCIC_SCF1_IOSTS) {604 *value |= (reg & TCIC_SSTAT_LBAT1) ? SS_STSCHG : 0;605 } else {606 *value |= (reg & TCIC_SSTAT_RDY) ? SS_READY : 0;607 *value |= (reg & TCIC_SSTAT_LBAT1) ? SS_BATDEAD : 0;608 *value |= (reg & TCIC_SSTAT_LBAT2) ? SS_BATWARN : 0;609 }610 reg = tcic_getb(TCIC_PWR);611 if (reg & (TCIC_PWR_VCC(psock)|TCIC_PWR_VPP(psock)))612 *value |= SS_POWERON;613 dev_dbg(&sock->dev, "GetStatus(%d) = %#2.2x\n", psock, *value);614 return 0;615} /* tcic_get_status */616 617/*====================================================================*/618 619static int tcic_set_socket(struct pcmcia_socket *sock, socket_state_t *state)620{621 u_short psock = container_of(sock, struct tcic_socket, socket)->psock;622 u_char reg;623 u_short scf1, scf2;624 625 dev_dbg(&sock->dev, "SetSocket(%d, flags %#3.3x, Vcc %d, Vpp %d, "626 "io_irq %d, csc_mask %#2.2x)\n", psock, state->flags,627 state->Vcc, state->Vpp, state->io_irq, state->csc_mask);628 tcic_setw(TCIC_ADDR+2, (psock << TCIC_SS_SHFT) | TCIC_ADR2_INDREG);629 630 reg = tcic_getb(TCIC_PWR);631 reg &= ~(TCIC_PWR_VCC(psock) | TCIC_PWR_VPP(psock));632 633 if (state->Vcc == 50) {634 switch (state->Vpp) {635 case 0: reg |= TCIC_PWR_VCC(psock) | TCIC_PWR_VPP(psock); break;636 case 50: reg |= TCIC_PWR_VCC(psock); break;637 case 120: reg |= TCIC_PWR_VPP(psock); break;638 default: return -EINVAL;639 }640 } else if (state->Vcc != 0)641 return -EINVAL;642 643 if (reg != tcic_getb(TCIC_PWR))644 tcic_setb(TCIC_PWR, reg);645 646 reg = TCIC_ILOCK_HOLD_CCLK | TCIC_ILOCK_CWAIT;647 if (state->flags & SS_OUTPUT_ENA) {648 tcic_setb(TCIC_SCTRL, TCIC_SCTRL_ENA);649 reg |= TCIC_ILOCK_CRESENA;650 } else651 tcic_setb(TCIC_SCTRL, 0);652 if (state->flags & SS_RESET)653 reg |= TCIC_ILOCK_CRESET;654 tcic_aux_setb(TCIC_AUX_ILOCK, reg);655 656 tcic_setw(TCIC_ADDR, TCIC_SCF1(psock));657 scf1 = TCIC_SCF1_FINPACK;658 scf1 |= TCIC_IRQ(state->io_irq);659 if (state->flags & SS_IOCARD) {660 scf1 |= TCIC_SCF1_IOSTS;661 if (state->flags & SS_SPKR_ENA)662 scf1 |= TCIC_SCF1_SPKR;663 if (state->flags & SS_DMA_MODE)664 scf1 |= TCIC_SCF1_DREQ2 << TCIC_SCF1_DMA_SHIFT;665 }666 tcic_setw(TCIC_DATA, scf1);667 668 /* Some general setup stuff, and configure status interrupt */669 reg = TCIC_WAIT_ASYNC | TCIC_WAIT_SENSE | to_cycles(250);670 tcic_aux_setb(TCIC_AUX_WCTL, reg);671 tcic_aux_setw(TCIC_AUX_SYSCFG, TCIC_SYSCFG_AUTOBUSY|0x0a00|672 TCIC_IRQ(cs_irq));673 674 /* Card status change interrupt mask */675 tcic_setw(TCIC_ADDR, TCIC_SCF2(psock));676 scf2 = TCIC_SCF2_MALL;677 if (state->csc_mask & SS_DETECT) scf2 &= ~TCIC_SCF2_MCD;678 if (state->flags & SS_IOCARD) {679 if (state->csc_mask & SS_STSCHG) reg &= ~TCIC_SCF2_MLBAT1;680 } else {681 if (state->csc_mask & SS_BATDEAD) reg &= ~TCIC_SCF2_MLBAT1;682 if (state->csc_mask & SS_BATWARN) reg &= ~TCIC_SCF2_MLBAT2;683 if (state->csc_mask & SS_READY) reg &= ~TCIC_SCF2_MRDY;684 }685 tcic_setw(TCIC_DATA, scf2);686 /* For the ISA bus, the irq should be active-high totem-pole */687 tcic_setb(TCIC_IENA, TCIC_IENA_CDCHG | TCIC_IENA_CFG_HIGH);688 689 return 0;690} /* tcic_set_socket */691 692/*====================================================================*/693 694static int tcic_set_io_map(struct pcmcia_socket *sock, struct pccard_io_map *io)695{696 u_short psock = container_of(sock, struct tcic_socket, socket)->psock;697 u_int addr;698 u_short base, len, ioctl;699 700 dev_dbg(&sock->dev, "SetIOMap(%d, %d, %#2.2x, %d ns, "701 "%#llx-%#llx)\n", psock, io->map, io->flags, io->speed,702 (unsigned long long)io->start, (unsigned long long)io->stop);703 if ((io->map > 1) || (io->start > 0xffff) || (io->stop > 0xffff) ||704 (io->stop < io->start)) return -EINVAL;705 tcic_setw(TCIC_ADDR+2, TCIC_ADR2_INDREG | (psock << TCIC_SS_SHFT));706 addr = TCIC_IWIN(psock, io->map);707 708 base = io->start; len = io->stop - io->start;709 /* Check to see that len+1 is power of two, etc */710 if ((len & (len+1)) || (base & len)) return -EINVAL;711 base |= (len+1)>>1;712 tcic_setw(TCIC_ADDR, addr + TCIC_IBASE_X);713 tcic_setw(TCIC_DATA, base);714 715 ioctl = (psock << TCIC_ICTL_SS_SHFT);716 ioctl |= (len == 0) ? TCIC_ICTL_TINY : 0;717 ioctl |= (io->flags & MAP_ACTIVE) ? TCIC_ICTL_ENA : 0;718 ioctl |= to_cycles(io->speed) & TCIC_ICTL_WSCNT_MASK;719 if (!(io->flags & MAP_AUTOSZ)) {720 ioctl |= TCIC_ICTL_QUIET;721 ioctl |= (io->flags & MAP_16BIT) ? TCIC_ICTL_BW_16 : TCIC_ICTL_BW_8;722 }723 tcic_setw(TCIC_ADDR, addr + TCIC_ICTL_X);724 tcic_setw(TCIC_DATA, ioctl);725 726 return 0;727} /* tcic_set_io_map */728 729/*====================================================================*/730 731static int tcic_set_mem_map(struct pcmcia_socket *sock, struct pccard_mem_map *mem)732{733 u_short psock = container_of(sock, struct tcic_socket, socket)->psock;734 u_short addr, ctl;735 u_long base, len, mmap;736 737 dev_dbg(&sock->dev, "SetMemMap(%d, %d, %#2.2x, %d ns, "738 "%#llx-%#llx, %#x)\n", psock, mem->map, mem->flags,739 mem->speed, (unsigned long long)mem->res->start,740 (unsigned long long)mem->res->end, mem->card_start);741 if ((mem->map > 3) || (mem->card_start > 0x3ffffff) ||742 (mem->res->start > 0xffffff) || (mem->res->end > 0xffffff) ||743 (mem->res->start > mem->res->end) || (mem->speed > 1000))744 return -EINVAL;745 tcic_setw(TCIC_ADDR+2, TCIC_ADR2_INDREG | (psock << TCIC_SS_SHFT));746 addr = TCIC_MWIN(psock, mem->map);747 748 base = mem->res->start; len = mem->res->end - mem->res->start;749 if ((len & (len+1)) || (base & len)) return -EINVAL;750 if (len == 0x0fff)751 base = (base >> TCIC_MBASE_HA_SHFT) | TCIC_MBASE_4K_BIT;752 else753 base = (base | (len+1)>>1) >> TCIC_MBASE_HA_SHFT;754 tcic_setw(TCIC_ADDR, addr + TCIC_MBASE_X);755 tcic_setw(TCIC_DATA, base);756 757 mmap = mem->card_start - mem->res->start;758 mmap = (mmap >> TCIC_MMAP_CA_SHFT) & TCIC_MMAP_CA_MASK;759 if (mem->flags & MAP_ATTRIB) mmap |= TCIC_MMAP_REG;760 tcic_setw(TCIC_ADDR, addr + TCIC_MMAP_X);761 tcic_setw(TCIC_DATA, mmap);762 763 ctl = TCIC_MCTL_QUIET | (psock << TCIC_MCTL_SS_SHFT);764 ctl |= to_cycles(mem->speed) & TCIC_MCTL_WSCNT_MASK;765 ctl |= (mem->flags & MAP_16BIT) ? 0 : TCIC_MCTL_B8;766 ctl |= (mem->flags & MAP_WRPROT) ? TCIC_MCTL_WP : 0;767 ctl |= (mem->flags & MAP_ACTIVE) ? TCIC_MCTL_ENA : 0;768 tcic_setw(TCIC_ADDR, addr + TCIC_MCTL_X);769 tcic_setw(TCIC_DATA, ctl);770 771 return 0;772} /* tcic_set_mem_map */773 774/*====================================================================*/775 776static int tcic_init(struct pcmcia_socket *s)777{778 int i;779 struct resource res = { .start = 0, .end = 0x1000 };780 pccard_io_map io = { 0, 0, 0, 0, 1 };781 pccard_mem_map mem = { .res = &res, };782 783 for (i = 0; i < 2; i++) {784 io.map = i;785 tcic_set_io_map(s, &io);786 }787 for (i = 0; i < 5; i++) {788 mem.map = i;789 tcic_set_mem_map(s, &mem);790 }791 return 0;792}793 794static struct pccard_operations tcic_operations = {795 .init = tcic_init,796 .get_status = tcic_get_status,797 .set_socket = tcic_set_socket,798 .set_io_map = tcic_set_io_map,799 .set_mem_map = tcic_set_mem_map,800};801 802/*====================================================================*/803 804module_init(init_tcic);805module_exit(exit_tcic);806