2 * $Id: pcmciamtd.c,v 1.48 2003/06/24 07:14:38 spse Exp $
4 * pcmciamtd.c - MTD driver for PCMCIA flash memory cards
6 * Author: Simon Evans <spse@secret.org.uk>
8 * Copyright (C) 2002 Simon Evans
14 #include <linux/module.h>
15 #include <linux/slab.h>
16 #include <linux/timer.h>
17 #include <linux/init.h>
19 #include <asm/system.h>
21 #include <pcmcia/version.h>
22 #include <pcmcia/cs_types.h>
23 #include <pcmcia/cs.h>
24 #include <pcmcia/cistpl.h>
25 #include <pcmcia/ds.h>
27 #include <linux/mtd/map.h>
28 #include <linux/mtd/mtd.h>
30 #ifdef CONFIG_MTD_DEBUG
31 static int debug = CONFIG_MTD_DEBUG_VERBOSE;
32 MODULE_PARM(debug, "i");
33 MODULE_PARM_DESC(debug, "Set Debug Level 0=quiet, 5=noisy");
35 #define DEBUG(n, format, arg...) \
37 printk(KERN_DEBUG __FILE__ ":%s(): " format "\n", __FUNCTION__ , ## arg); \
42 #define DEBUG(n, arg...)
43 static const int debug = 0;
46 #define err(format, arg...) printk(KERN_ERR "pcmciamtd: " format "\n" , ## arg)
47 #define info(format, arg...) printk(KERN_INFO "pcmciamtd: " format "\n" , ## arg)
48 #define warn(format, arg...) printk(KERN_WARNING "pcmciamtd: " format "\n" , ## arg)
51 #define DRIVER_DESC "PCMCIA Flash memory card driver"
52 #define DRIVER_VERSION "$Revision: 1.48 $"
54 /* Size of the PCMCIA address space: 26 bits = 64 MB */
55 #define MAX_PCMCIA_ADDR 0x4000000
57 struct pcmciamtd_dev {
58 dev_link_t link; /* PCMCIA link */
59 dev_node_t node; /* device node */
60 caddr_t win_base; /* ioremapped address of PCMCIA window */
61 unsigned int win_size; /* size of window */
62 unsigned int offset; /* offset into card the window currently points at */
63 struct map_info pcmcia_map;
64 struct mtd_info *mtd_info;
66 char mtd_name[sizeof(struct cistpl_vers_1_t)];
70 static dev_info_t dev_info = "pcmciamtd";
71 static dev_link_t *dev_list;
73 /* Module parameters */
75 /* 2 = do 16-bit transfers, 1 = do 8-bit transfers */
76 static int buswidth = 2;
78 /* Speed of memory accesses, in ns */
81 /* Force the size of an SRAM card */
82 static int force_size;
90 /* Force card to be treated as FLASH, ROM or RAM */
93 MODULE_LICENSE("GPL");
94 MODULE_AUTHOR("Simon Evans <spse@secret.org.uk>");
95 MODULE_DESCRIPTION(DRIVER_DESC);
96 MODULE_PARM(buswidth, "i");
97 MODULE_PARM_DESC(buswidth, "Set buswidth (1=8 bit, 2=16 bit, default=2)");
98 MODULE_PARM(mem_speed, "i");
99 MODULE_PARM_DESC(mem_speed, "Set memory access speed in ns");
100 MODULE_PARM(force_size, "i");
101 MODULE_PARM_DESC(force_size, "Force size of card in MiB (1-64)");
102 MODULE_PARM(setvpp, "i");
103 MODULE_PARM_DESC(setvpp, "Set Vpp (0=Never, 1=On writes, 2=Always on, default=0)");
104 MODULE_PARM(vpp, "i");
105 MODULE_PARM_DESC(vpp, "Vpp value in 1/10ths eg 33=3.3V 120=12V (Dangerous)");
106 MODULE_PARM(mem_type, "i");
107 MODULE_PARM_DESC(mem_type, "Set Memory type (0=Flash, 1=RAM, 2=ROM, default=0)");
110 /* read/write{8,16} copy_{from,to} routines with window remapping to access whole card */
111 static caddr_t remap_window(struct map_info *map, unsigned long to)
113 struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1;
114 window_handle_t win = (window_handle_t)map->map_priv_2;
118 if(!(dev->link.state & DEV_PRESENT)) {
119 DEBUG(1, "device removed state = 0x%4.4X", dev->link.state);
123 mrq.CardOffset = to & ~(dev->win_size-1);
124 if(mrq.CardOffset != dev->offset) {
125 DEBUG(2, "Remapping window from 0x%8.8x to 0x%8.8x",
126 dev->offset, mrq.CardOffset);
128 if( (ret = pcmcia_map_mem_page(win, &mrq)) != CS_SUCCESS) {
129 cs_error(dev->link.handle, MapMemPage, ret);
132 dev->offset = mrq.CardOffset;
134 return dev->win_base + (to & (dev->win_size-1));
138 static u8 pcmcia_read8_remap(struct map_info *map, unsigned long ofs)
143 addr = remap_window(map, ofs);
148 DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%02x", ofs, addr, d);
153 static u16 pcmcia_read16_remap(struct map_info *map, unsigned long ofs)
158 addr = remap_window(map, ofs);
163 DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%04x", ofs, addr, d);
168 static void pcmcia_copy_from_remap(struct map_info *map, void *to, unsigned long from, ssize_t len)
170 struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1;
171 unsigned long win_size = dev->win_size;
173 DEBUG(3, "to = %p from = %lu len = %u", to, from, len);
175 int toread = win_size - (from & (win_size-1));
181 addr = remap_window(map, from);
185 DEBUG(4, "memcpy from %p to %p len = %d", addr, to, toread);
186 memcpy_fromio(to, addr, toread);
194 static void pcmcia_write8_remap(struct map_info *map, u8 d, unsigned long adr)
196 caddr_t addr = remap_window(map, adr);
201 DEBUG(3, "adr = 0x%08lx (%p) data = 0x%02x", adr, addr, d);
206 static void pcmcia_write16_remap(struct map_info *map, u16 d, unsigned long adr)
208 caddr_t addr = remap_window(map, adr);
212 DEBUG(3, "adr = 0x%08lx (%p) data = 0x%04x", adr, addr, d);
217 static void pcmcia_copy_to_remap(struct map_info *map, unsigned long to, const void *from, ssize_t len)
219 struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1;
220 unsigned long win_size = dev->win_size;
222 DEBUG(3, "to = %lu from = %p len = %u", to, from, len);
224 int towrite = win_size - (to & (win_size-1));
230 addr = remap_window(map, to);
234 DEBUG(4, "memcpy from %p to %p len = %d", from, addr, towrite);
235 memcpy_toio(addr, from, towrite);
243 /* read/write{8,16} copy_{from,to} routines with direct access */
245 #define DEV_REMOVED(x) (!(*(u_int *)x->map_priv_1 & DEV_PRESENT))
247 static u8 pcmcia_read8(struct map_info *map, unsigned long ofs)
249 caddr_t win_base = (caddr_t)map->map_priv_2;
255 d = readb(win_base + ofs);
256 DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%02x", ofs, win_base + ofs, d);
261 static u16 pcmcia_read16(struct map_info *map, unsigned long ofs)
263 caddr_t win_base = (caddr_t)map->map_priv_2;
269 d = readw(win_base + ofs);
270 DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%04x", ofs, win_base + ofs, d);
275 static void pcmcia_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
277 caddr_t win_base = (caddr_t)map->map_priv_2;
282 DEBUG(3, "to = %p from = %lu len = %u", to, from, len);
283 memcpy_fromio(to, win_base + from, len);
287 static void pcmcia_write8(struct map_info *map, u8 d, unsigned long adr)
289 caddr_t win_base = (caddr_t)map->map_priv_2;
294 DEBUG(3, "adr = 0x%08lx (%p) data = 0x%02x", adr, win_base + adr, d);
295 writeb(d, win_base + adr);
299 static void pcmcia_write16(struct map_info *map, u16 d, unsigned long adr)
301 caddr_t win_base = (caddr_t)map->map_priv_2;
306 DEBUG(3, "adr = 0x%08lx (%p) data = 0x%04x", adr, win_base + adr, d);
307 writew(d, win_base + adr);
311 static void pcmcia_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
313 caddr_t win_base = (caddr_t)map->map_priv_2;
318 DEBUG(3, "to = %lu from = %p len = %u", to, from, len);
319 memcpy_toio(win_base + to, from, len);
323 static void pcmciamtd_set_vpp(struct map_info *map, int on)
325 struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1;
326 dev_link_t *link = &dev->link;
330 mod.Attributes = CONF_VPP1_CHANGE_VALID | CONF_VPP2_CHANGE_VALID;
332 mod.Vpp1 = mod.Vpp2 = on ? dev->vpp : 0;
334 DEBUG(2, "dev = %p on = %d vpp = %d\n", dev, on, dev->vpp);
335 ret = pcmcia_modify_configuration(link->handle, &mod);
336 if(ret != CS_SUCCESS) {
337 cs_error(link->handle, ModifyConfiguration, ret);
342 /* After a card is removed, pcmciamtd_release() will unregister the
343 * device, and release the PCMCIA configuration. If the device is
344 * still open, this will be postponed until it is closed.
347 static void pcmciamtd_release(dev_link_t *link)
349 struct pcmciamtd_dev *dev = link->priv;
351 DEBUG(3, "link = 0x%p", link);
355 iounmap(dev->win_base);
356 dev->win_base = NULL;
358 pcmcia_release_window(link->win);
360 pcmcia_release_configuration(link->handle);
361 link->state &= ~DEV_CONFIG;
365 static void card_settings(struct pcmciamtd_dev *dev, dev_link_t *link, int *new_name)
372 tuple.Attributes = 0;
373 tuple.TupleData = (cisdata_t *)buf;
374 tuple.TupleDataMax = sizeof(buf);
375 tuple.TupleOffset = 0;
376 tuple.DesiredTuple = RETURN_FIRST_TUPLE;
378 rc = pcmcia_get_first_tuple(link->handle, &tuple);
379 while(rc == CS_SUCCESS) {
380 rc = pcmcia_get_tuple_data(link->handle, &tuple);
381 if(rc != CS_SUCCESS) {
382 cs_error(link->handle, GetTupleData, rc);
385 rc = pcmcia_parse_tuple(link->handle, &tuple, &parse);
386 if(rc != CS_SUCCESS) {
387 cs_error(link->handle, ParseTuple, rc);
391 switch(tuple.TupleCode) {
392 case CISTPL_FORMAT: {
393 cistpl_format_t *t = &parse.format;
394 (void)t; /* Shut up, gcc */
395 DEBUG(2, "Format type: %u, Error Detection: %u, offset = %u, length =%u",
396 t->type, t->edc, t->offset, t->length);
401 case CISTPL_DEVICE: {
402 cistpl_device_t *t = &parse.device;
404 DEBUG(2, "Common memory:");
405 dev->pcmcia_map.size = t->dev[0].size;
406 for(i = 0; i < t->ndev; i++) {
407 DEBUG(2, "Region %d, type = %u", i, t->dev[i].type);
408 DEBUG(2, "Region %d, wp = %u", i, t->dev[i].wp);
409 DEBUG(2, "Region %d, speed = %u ns", i, t->dev[i].speed);
410 DEBUG(2, "Region %d, size = %u bytes", i, t->dev[i].size);
415 case CISTPL_VERS_1: {
416 cistpl_vers_1_t *t = &parse.version_1;
419 dev->mtd_name[0] = '\0';
420 for(i = 0; i < t->ns; i++) {
422 strcat(dev->mtd_name, " ");
423 strcat(dev->mtd_name, t->str+t->ofs[i]);
426 DEBUG(2, "Found name: %s", dev->mtd_name);
430 case CISTPL_JEDEC_C: {
431 cistpl_jedec_t *t = &parse.jedec;
433 for(i = 0; i < t->nid; i++) {
434 DEBUG(2, "JEDEC: 0x%02x 0x%02x", t->id[i].mfr, t->id[i].info);
439 case CISTPL_DEVICE_GEO: {
440 cistpl_device_geo_t *t = &parse.device_geo;
442 dev->pcmcia_map.buswidth = t->geo[0].buswidth;
443 for(i = 0; i < t->ngeo; i++) {
444 DEBUG(2, "region: %d buswidth = %u", i, t->geo[i].buswidth);
445 DEBUG(2, "region: %d erase_block = %u", i, t->geo[i].erase_block);
446 DEBUG(2, "region: %d read_block = %u", i, t->geo[i].read_block);
447 DEBUG(2, "region: %d write_block = %u", i, t->geo[i].write_block);
448 DEBUG(2, "region: %d partition = %u", i, t->geo[i].partition);
449 DEBUG(2, "region: %d interleave = %u", i, t->geo[i].interleave);
455 DEBUG(2, "Unknown tuple code %d", tuple.TupleCode);
458 rc = pcmcia_get_next_tuple(link->handle, &tuple);
460 if(!dev->pcmcia_map.size)
461 dev->pcmcia_map.size = MAX_PCMCIA_ADDR;
463 if(!dev->pcmcia_map.buswidth)
464 dev->pcmcia_map.buswidth = 2;
467 dev->pcmcia_map.size = force_size << 20;
468 DEBUG(2, "size forced to %dM", force_size);
472 dev->pcmcia_map.buswidth = buswidth;
473 DEBUG(2, "buswidth forced to %d", buswidth);
476 dev->pcmcia_map.name = dev->mtd_name;
477 if(!dev->mtd_name[0]) {
478 strcpy(dev->mtd_name, "PCMCIA Memory card");
482 DEBUG(1, "Device: Size: %lu Width:%d Name: %s",
483 dev->pcmcia_map.size, dev->pcmcia_map.buswidth << 3, dev->mtd_name);
487 /* pcmciamtd_config() is scheduled to run after a CARD_INSERTION event
488 * is received, to configure the PCMCIA socket, and to make the
489 * MTD device available to the system.
492 #define CS_CHECK(fn, ret) \
493 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
495 static void pcmciamtd_config(dev_link_t *link)
497 struct pcmciamtd_dev *dev = link->priv;
498 struct mtd_info *mtd = NULL;
501 int last_ret = 0, last_fn = 0;
505 static char *probes[] = { "jedec_probe", "cfi_probe" };
509 DEBUG(3, "link=0x%p", link);
512 link->state |= DEV_CONFIG;
514 DEBUG(2, "Validating CIS");
515 ret = pcmcia_validate_cis(link->handle, &cisinfo);
516 if(ret != CS_SUCCESS) {
517 cs_error(link->handle, GetTupleData, ret);
519 DEBUG(2, "ValidateCIS found %d chains", cisinfo.Chains);
522 card_settings(dev, link, &new_name);
524 dev->pcmcia_map.phys = NO_XIP;
525 dev->pcmcia_map.read8 = pcmcia_read8_remap;
526 dev->pcmcia_map.read16 = pcmcia_read16_remap;
527 dev->pcmcia_map.copy_from = pcmcia_copy_from_remap;
528 dev->pcmcia_map.write8 = pcmcia_write8_remap;
529 dev->pcmcia_map.write16 = pcmcia_write16_remap;
530 dev->pcmcia_map.copy_to = pcmcia_copy_to_remap;
532 dev->pcmcia_map.set_vpp = pcmciamtd_set_vpp;
534 /* Request a memory window for PCMCIA. Some architeures can map windows upto the maximum
535 that PCMCIA can support (64MiB) - this is ideal and we aim for a window the size of the
536 whole card - otherwise we try smaller windows until we succeed */
538 req.Attributes = WIN_MEMORY_TYPE_CM | WIN_ENABLE;
539 req.Attributes |= (dev->pcmcia_map.buswidth == 1) ? WIN_DATA_WIDTH_8 : WIN_DATA_WIDTH_16;
541 req.AccessSpeed = mem_speed;
542 link->win = (window_handle_t)link->handle;
543 req.Size = (force_size) ? force_size << 20 : MAX_PCMCIA_ADDR;
548 DEBUG(2, "requesting window with size = %dKiB memspeed = %d",
549 req.Size >> 10, req.AccessSpeed);
550 ret = pcmcia_request_window(&link->handle, &req, &link->win);
551 DEBUG(2, "ret = %d dev->win_size = %d", ret, dev->win_size);
555 DEBUG(2, "Got window of size %dKiB", req.Size >> 10);
556 dev->win_size = req.Size;
559 } while(req.Size >= 0x1000);
561 DEBUG(2, "dev->win_size = %d", dev->win_size);
564 err("Cant allocate memory window");
565 pcmciamtd_release(link);
568 DEBUG(1, "Allocated a window of %dKiB", dev->win_size >> 10);
570 /* Get write protect status */
571 CS_CHECK(GetStatus, pcmcia_get_status(link->handle, &status));
572 DEBUG(2, "status value: 0x%x window handle = 0x%8.8lx",
573 status.CardState, (unsigned long)link->win);
574 dev->win_base = ioremap(req.Base, req.Size);
576 err("ioremap(%lu, %u) failed", req.Base, req.Size);
577 pcmciamtd_release(link);
580 DEBUG(1, "mapped window dev = %p req.base = 0x%lx base = %p size = 0x%x",
581 dev, req.Base, dev->win_base, req.Size);
584 dev->pcmcia_map.map_priv_1 = (unsigned long)dev;
585 dev->pcmcia_map.map_priv_2 = (unsigned long)link->win;
587 DEBUG(2, "Getting configuration");
588 CS_CHECK(GetConfigurationInfo, pcmcia_get_configuration_info(link->handle, &t));
589 DEBUG(2, "Vcc = %d Vpp1 = %d Vpp2 = %d", t.Vcc, t.Vpp1, t.Vpp2);
590 dev->vpp = (vpp) ? vpp : t.Vpp1;
591 link->conf.Attributes = 0;
592 link->conf.Vcc = t.Vcc;
594 link->conf.Vpp1 = dev->vpp;
595 link->conf.Vpp2 = dev->vpp;
601 link->conf.IntType = INT_MEMORY;
602 link->conf.ConfigBase = t.ConfigBase;
603 link->conf.Status = t.Status;
604 link->conf.Pin = t.Pin;
605 link->conf.Copy = t.Copy;
606 link->conf.ExtStatus = t.ExtStatus;
607 link->conf.ConfigIndex = 0;
608 link->conf.Present = t.Present;
609 DEBUG(2, "Setting Configuration");
610 ret = pcmcia_request_configuration(link->handle, &link->conf);
611 if(ret != CS_SUCCESS) {
612 cs_error(link->handle, RequestConfiguration, ret);
616 mtd = do_map_probe("map_ram", &dev->pcmcia_map);
617 } else if(mem_type == 2) {
618 mtd = do_map_probe("map_rom", &dev->pcmcia_map);
620 for(i = 0; i < sizeof(probes) / sizeof(char *); i++) {
621 DEBUG(1, "Trying %s", probes[i]);
622 mtd = do_map_probe(probes[i], &dev->pcmcia_map);
626 DEBUG(1, "FAILED: %s", probes[i]);
631 DEBUG(1, "Cant find an MTD");
632 pcmciamtd_release(link);
637 mtd->owner = THIS_MODULE;
642 /* Since we are using a default name, make it better by adding in the
644 if(mtd->size < 1048576) { /* <1MiB in size, show size in KiB */
645 size = mtd->size >> 10;
648 size = mtd->size >> 20;
651 snprintf(dev->mtd_name, sizeof(dev->mtd_name), "%d%ciB %s", size, unit, "PCMCIA Memory card");
654 /* If the memory found is fits completely into the mapped PCMCIA window,
655 use the faster non-remapping read/write functions */
656 if(mtd->size <= dev->win_size) {
657 DEBUG(1, "Using non remapping memory functions");
658 dev->pcmcia_map.map_priv_1 = (unsigned long)&(dev->link.state);
659 dev->pcmcia_map.map_priv_2 = (unsigned long)dev->win_base;
660 dev->pcmcia_map.read8 = pcmcia_read8;
661 dev->pcmcia_map.read16 = pcmcia_read16;
662 dev->pcmcia_map.copy_from = pcmcia_copy_from;
663 dev->pcmcia_map.write8 = pcmcia_write8;
664 dev->pcmcia_map.write16 = pcmcia_write16;
665 dev->pcmcia_map.copy_to = pcmcia_copy_to;
668 if(add_mtd_device(mtd)) {
670 dev->mtd_info = NULL;
671 err("Couldnt register MTD device");
672 pcmciamtd_release(link);
675 snprintf(dev->node.dev_name, sizeof(dev->node.dev_name), "mtd%d", mtd->index);
676 info("mtd%d: %s", mtd->index, mtd->name);
677 link->state &= ~DEV_CONFIG_PENDING;
678 link->dev = &dev->node;
682 cs_error(link->handle, last_fn, last_ret);
683 err("CS Error, exiting");
684 pcmciamtd_release(link);
689 /* The card status event handler. Mostly, this schedules other
690 * stuff to run after an event is received. A CARD_REMOVAL event
691 * also sets some flags to discourage the driver from trying
692 * to talk to the card any more.
695 static int pcmciamtd_event(event_t event, int priority,
696 event_callback_args_t *args)
698 dev_link_t *link = args->client_data;
700 DEBUG(1, "event=0x%06x", event);
702 case CS_EVENT_CARD_REMOVAL:
703 DEBUG(2, "EVENT_CARD_REMOVAL");
704 link->state &= ~DEV_PRESENT;
705 if (link->state & DEV_CONFIG) {
706 struct pcmciamtd_dev *dev = link->priv;
708 del_mtd_device(dev->mtd_info);
709 info("mtd%d: Removed", dev->mtd_info->index);
711 pcmciamtd_release(link);
714 case CS_EVENT_CARD_INSERTION:
715 DEBUG(2, "EVENT_CARD_INSERTION");
716 link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
717 pcmciamtd_config(link);
719 case CS_EVENT_PM_SUSPEND:
720 DEBUG(2, "EVENT_PM_SUSPEND");
721 link->state |= DEV_SUSPEND;
722 /* Fall through... */
723 case CS_EVENT_RESET_PHYSICAL:
724 DEBUG(2, "EVENT_RESET_PHYSICAL");
725 /* get_lock(link); */
727 case CS_EVENT_PM_RESUME:
728 DEBUG(2, "EVENT_PM_RESUME");
729 link->state &= ~DEV_SUSPEND;
730 /* Fall through... */
731 case CS_EVENT_CARD_RESET:
732 DEBUG(2, "EVENT_CARD_RESET");
733 /* free_lock(link); */
736 DEBUG(2, "Unknown event %d", event);
742 /* This deletes a driver "instance". The device is de-registered
743 * with Card Services. If it has been released, all local data
744 * structures are freed. Otherwise, the structures will be freed
745 * when the device is released.
748 static void pcmciamtd_detach(dev_link_t *link)
750 DEBUG(3, "link=0x%p", link);
752 if(link->state & DEV_CONFIG) {
753 pcmciamtd_release(link);
758 DEBUG(2, "Deregistering with card services");
759 ret = pcmcia_deregister_client(link->handle);
760 if (ret != CS_SUCCESS)
761 cs_error(link->handle, DeregisterClient, ret);
764 link->state |= DEV_STALE_LINK;
768 /* pcmciamtd_attach() creates an "instance" of the driver, allocating
769 * local data structures for one device. The device is registered
770 * with Card Services.
773 static dev_link_t *pcmciamtd_attach(void)
775 struct pcmciamtd_dev *dev;
777 client_reg_t client_reg;
780 /* Create new memory card device */
781 dev = kmalloc(sizeof(*dev), GFP_KERNEL);
782 if (!dev) return NULL;
783 DEBUG(1, "dev=0x%p", dev);
785 memset(dev, 0, sizeof(*dev));
789 link->conf.Attributes = 0;
790 link->conf.IntType = INT_MEMORY;
792 link->next = dev_list;
795 /* Register with Card Services */
796 client_reg.dev_info = &dev_info;
797 client_reg.Attributes = INFO_IO_CLIENT | INFO_CARD_SHARE;
798 client_reg.EventMask =
799 CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET |
800 CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL |
801 CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME;
802 client_reg.event_handler = &pcmciamtd_event;
803 client_reg.Version = 0x0210;
804 client_reg.event_callback_args.client_data = link;
805 DEBUG(2, "Calling RegisterClient");
806 ret = pcmcia_register_client(&link->handle, &client_reg);
808 cs_error(link->handle, RegisterClient, ret);
809 pcmciamtd_detach(link);
812 DEBUG(2, "link = %p", link);
817 static struct pcmcia_driver pcmciamtd_driver = {
821 .attach = pcmciamtd_attach,
822 .detach = pcmciamtd_detach,
827 static int __init init_pcmciamtd(void)
829 info(DRIVER_DESC " " DRIVER_VERSION);
831 if(buswidth && buswidth != 1 && buswidth != 2) {
832 info("bad buswidth (%d), using default", buswidth);
835 if(force_size && (force_size < 1 || force_size > 64)) {
836 info("bad force_size (%d), using default", force_size);
839 if(mem_type && mem_type != 1 && mem_type != 2) {
840 info("bad mem_type (%d), using default", mem_type);
843 return pcmcia_register_driver(&pcmciamtd_driver);
847 static void __exit exit_pcmciamtd(void)
849 DEBUG(1, DRIVER_DESC " unloading");
850 pcmcia_unregister_driver(&pcmciamtd_driver);
853 dev_link_t *link = dev_list;
855 dev_list = link->next;
857 struct pcmciamtd_dev *dev = link->priv;
860 if(link->state & DEV_PRESENT) {
861 if (!(link->state & DEV_STALE_LINK)) {
862 pcmciamtd_detach(link);
864 link->state &= ~DEV_PRESENT;
866 del_mtd_device(dev->mtd_info);
867 info("mtd%d: Removed",
868 dev->mtd_info->index);
872 DEBUG(2, "Destroying map for mtd%d",
873 dev->mtd_info->index);
874 map_destroy(dev->mtd_info);
882 module_init(init_pcmciamtd);
883 module_exit(exit_pcmciamtd);