2 * ds.c -- 16-bit PCMCIA core support
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
8 * The initial developer of the original code is David A. Hinds
9 * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
10 * are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
12 * (C) 1999 David A. Hinds
13 * (C) 2003 - 2006 Dominik Brodowski
16 #include <linux/kernel.h>
17 #include <linux/module.h>
18 #include <linux/init.h>
19 #include <linux/errno.h>
20 #include <linux/list.h>
21 #include <linux/delay.h>
22 #include <linux/workqueue.h>
23 #include <linux/crc32.h>
24 #include <linux/firmware.h>
25 #include <linux/kref.h>
27 #define IN_CARD_SERVICES
28 #include <pcmcia/cs_types.h>
29 #include <pcmcia/cs.h>
30 #include <pcmcia/cistpl.h>
31 #include <pcmcia/ds.h>
32 #include <pcmcia/ss.h>
34 #include "cs_internal.h"
35 #include "ds_internal.h"
37 /*====================================================================*/
39 /* Module parameters */
41 MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
42 MODULE_DESCRIPTION("PCMCIA Driver Services");
43 MODULE_LICENSE("GPL");
48 module_param_named(pc_debug
, ds_pc_debug
, int, 0644);
50 #define ds_dbg(lvl, fmt, arg...) do { \
51 if (ds_pc_debug > (lvl)) \
52 printk(KERN_DEBUG "ds: " fmt , ## arg); \
55 #define ds_dbg(lvl, fmt, arg...) do { } while (0)
58 spinlock_t pcmcia_dev_list_lock
;
60 /*====================================================================*/
62 /* code which was in cs.c before */
64 /* String tables for error messages */
66 typedef struct lookup_t
{
71 static const lookup_t error_table
[] = {
72 { CS_SUCCESS
, "Operation succeeded" },
73 { CS_BAD_ADAPTER
, "Bad adapter" },
74 { CS_BAD_ATTRIBUTE
, "Bad attribute", },
75 { CS_BAD_BASE
, "Bad base address" },
76 { CS_BAD_EDC
, "Bad EDC" },
77 { CS_BAD_IRQ
, "Bad IRQ" },
78 { CS_BAD_OFFSET
, "Bad offset" },
79 { CS_BAD_PAGE
, "Bad page number" },
80 { CS_READ_FAILURE
, "Read failure" },
81 { CS_BAD_SIZE
, "Bad size" },
82 { CS_BAD_SOCKET
, "Bad socket" },
83 { CS_BAD_TYPE
, "Bad type" },
84 { CS_BAD_VCC
, "Bad Vcc" },
85 { CS_BAD_VPP
, "Bad Vpp" },
86 { CS_BAD_WINDOW
, "Bad window" },
87 { CS_WRITE_FAILURE
, "Write failure" },
88 { CS_NO_CARD
, "No card present" },
89 { CS_UNSUPPORTED_FUNCTION
, "Usupported function" },
90 { CS_UNSUPPORTED_MODE
, "Unsupported mode" },
91 { CS_BAD_SPEED
, "Bad speed" },
92 { CS_BUSY
, "Resource busy" },
93 { CS_GENERAL_FAILURE
, "General failure" },
94 { CS_WRITE_PROTECTED
, "Write protected" },
95 { CS_BAD_ARG_LENGTH
, "Bad argument length" },
96 { CS_BAD_ARGS
, "Bad arguments" },
97 { CS_CONFIGURATION_LOCKED
, "Configuration locked" },
98 { CS_IN_USE
, "Resource in use" },
99 { CS_NO_MORE_ITEMS
, "No more items" },
100 { CS_OUT_OF_RESOURCE
, "Out of resource" },
101 { CS_BAD_HANDLE
, "Bad handle" },
102 { CS_BAD_TUPLE
, "Bad CIS tuple" }
106 static const lookup_t service_table
[] = {
107 { AccessConfigurationRegister
, "AccessConfigurationRegister" },
108 { AddSocketServices
, "AddSocketServices" },
109 { AdjustResourceInfo
, "AdjustResourceInfo" },
110 { CheckEraseQueue
, "CheckEraseQueue" },
111 { CloseMemory
, "CloseMemory" },
112 { DeregisterClient
, "DeregisterClient" },
113 { DeregisterEraseQueue
, "DeregisterEraseQueue" },
114 { GetCardServicesInfo
, "GetCardServicesInfo" },
115 { GetClientInfo
, "GetClientInfo" },
116 { GetConfigurationInfo
, "GetConfigurationInfo" },
117 { GetEventMask
, "GetEventMask" },
118 { GetFirstClient
, "GetFirstClient" },
119 { GetFirstRegion
, "GetFirstRegion" },
120 { GetFirstTuple
, "GetFirstTuple" },
121 { GetNextClient
, "GetNextClient" },
122 { GetNextRegion
, "GetNextRegion" },
123 { GetNextTuple
, "GetNextTuple" },
124 { GetStatus
, "GetStatus" },
125 { GetTupleData
, "GetTupleData" },
126 { MapMemPage
, "MapMemPage" },
127 { ModifyConfiguration
, "ModifyConfiguration" },
128 { ModifyWindow
, "ModifyWindow" },
129 { OpenMemory
, "OpenMemory" },
130 { ParseTuple
, "ParseTuple" },
131 { ReadMemory
, "ReadMemory" },
132 { RegisterClient
, "RegisterClient" },
133 { RegisterEraseQueue
, "RegisterEraseQueue" },
134 { RegisterMTD
, "RegisterMTD" },
135 { ReleaseConfiguration
, "ReleaseConfiguration" },
136 { ReleaseIO
, "ReleaseIO" },
137 { ReleaseIRQ
, "ReleaseIRQ" },
138 { ReleaseWindow
, "ReleaseWindow" },
139 { RequestConfiguration
, "RequestConfiguration" },
140 { RequestIO
, "RequestIO" },
141 { RequestIRQ
, "RequestIRQ" },
142 { RequestSocketMask
, "RequestSocketMask" },
143 { RequestWindow
, "RequestWindow" },
144 { ResetCard
, "ResetCard" },
145 { SetEventMask
, "SetEventMask" },
146 { ValidateCIS
, "ValidateCIS" },
147 { WriteMemory
, "WriteMemory" },
148 { BindDevice
, "BindDevice" },
149 { BindMTD
, "BindMTD" },
150 { ReportError
, "ReportError" },
151 { SuspendCard
, "SuspendCard" },
152 { ResumeCard
, "ResumeCard" },
153 { EjectCard
, "EjectCard" },
154 { InsertCard
, "InsertCard" },
155 { ReplaceCIS
, "ReplaceCIS" }
159 static int pcmcia_report_error(struct pcmcia_device
*p_dev
, error_info_t
*err
)
167 printk(KERN_NOTICE
"%s: ", p_dev
->dev
.bus_id
);
169 for (i
= 0; i
< ARRAY_SIZE(service_table
); i
++)
170 if (service_table
[i
].key
== err
->func
)
172 if (i
< ARRAY_SIZE(service_table
))
173 serv
= service_table
[i
].msg
;
175 serv
= "Unknown service number";
177 for (i
= 0; i
< ARRAY_SIZE(error_table
); i
++)
178 if (error_table
[i
].key
== err
->retcode
)
180 if (i
< ARRAY_SIZE(error_table
))
181 printk("%s: %s\n", serv
, error_table
[i
].msg
);
183 printk("%s: Unknown error code %#x\n", serv
, err
->retcode
);
188 /* end of code which was in cs.c before */
190 /*======================================================================*/
192 void cs_error(struct pcmcia_device
*p_dev
, int func
, int ret
)
194 error_info_t err
= { func
, ret
};
195 pcmcia_report_error(p_dev
, &err
);
197 EXPORT_SYMBOL(cs_error
);
200 static void pcmcia_check_driver(struct pcmcia_driver
*p_drv
)
202 struct pcmcia_device_id
*did
= p_drv
->id_table
;
206 if (!p_drv
->probe
|| !p_drv
->remove
)
207 printk(KERN_DEBUG
"pcmcia: %s lacks a requisite callback "
208 "function\n", p_drv
->drv
.name
);
210 while (did
&& did
->match_flags
) {
211 for (i
=0; i
<4; i
++) {
212 if (!did
->prod_id
[i
])
215 hash
= crc32(0, did
->prod_id
[i
], strlen(did
->prod_id
[i
]));
216 if (hash
== did
->prod_id_hash
[i
])
219 printk(KERN_DEBUG
"pcmcia: %s: invalid hash for "
220 "product string \"%s\": is 0x%x, should "
221 "be 0x%x\n", p_drv
->drv
.name
, did
->prod_id
[i
],
222 did
->prod_id_hash
[i
], hash
);
223 printk(KERN_DEBUG
"pcmcia: see "
224 "Documentation/pcmcia/devicetable.txt for "
234 #ifdef CONFIG_PCMCIA_LOAD_CIS
237 * pcmcia_load_firmware - load CIS from userspace if device-provided is broken
238 * @dev - the pcmcia device which needs a CIS override
239 * @filename - requested filename in /lib/firmware/cis/
241 * This uses the in-kernel firmware loading mechanism to use a "fake CIS" if
242 * the one provided by the card is broken. The firmware files reside in
243 * /lib/firmware/cis/ in userspace.
245 static int pcmcia_load_firmware(struct pcmcia_device
*dev
, char * filename
)
247 struct pcmcia_socket
*s
= dev
->socket
;
248 const struct firmware
*fw
;
256 ds_dbg(1, "trying to load firmware %s\n", filename
);
258 if (strlen(filename
) > 14)
261 snprintf(path
, 20, "%s", filename
);
263 if (request_firmware(&fw
, path
, &dev
->dev
) == 0) {
264 if (fw
->size
>= CISTPL_MAX_CIS_SIZE
)
267 cis
= kzalloc(sizeof(cisdump_t
), GFP_KERNEL
);
271 cis
->Length
= fw
->size
+ 1;
272 memcpy(cis
->Data
, fw
->data
, fw
->size
);
274 if (!pcmcia_replace_cis(s
, cis
))
278 release_firmware(fw
);
283 #else /* !CONFIG_PCMCIA_LOAD_CIS */
285 static inline int pcmcia_load_firmware(struct pcmcia_device
*dev
, char * filename
)
293 /*======================================================================*/
297 * pcmcia_register_driver - register a PCMCIA driver with the bus core
299 * Registers a PCMCIA driver with the PCMCIA bus core.
301 static int pcmcia_device_probe(struct device
*dev
);
302 static int pcmcia_device_remove(struct device
* dev
);
304 int pcmcia_register_driver(struct pcmcia_driver
*driver
)
309 pcmcia_check_driver(driver
);
311 /* initialize common fields */
312 driver
->drv
.bus
= &pcmcia_bus_type
;
313 driver
->drv
.owner
= driver
->owner
;
315 return driver_register(&driver
->drv
);
317 EXPORT_SYMBOL(pcmcia_register_driver
);
320 * pcmcia_unregister_driver - unregister a PCMCIA driver with the bus core
322 void pcmcia_unregister_driver(struct pcmcia_driver
*driver
)
324 driver_unregister(&driver
->drv
);
326 EXPORT_SYMBOL(pcmcia_unregister_driver
);
329 /* pcmcia_device handling */
331 struct pcmcia_device
* pcmcia_get_dev(struct pcmcia_device
*p_dev
)
333 struct device
*tmp_dev
;
334 tmp_dev
= get_device(&p_dev
->dev
);
337 return to_pcmcia_dev(tmp_dev
);
340 void pcmcia_put_dev(struct pcmcia_device
*p_dev
)
343 put_device(&p_dev
->dev
);
346 static void pcmcia_release_function(struct kref
*ref
)
348 struct config_t
*c
= container_of(ref
, struct config_t
, ref
);
352 static void pcmcia_release_dev(struct device
*dev
)
354 struct pcmcia_device
*p_dev
= to_pcmcia_dev(dev
);
355 ds_dbg(1, "releasing dev %p\n", p_dev
);
356 pcmcia_put_socket(p_dev
->socket
);
357 kfree(p_dev
->devname
);
358 kref_put(&p_dev
->function_config
->ref
, pcmcia_release_function
);
362 static void pcmcia_add_pseudo_device(struct pcmcia_socket
*s
)
364 if (!s
->pcmcia_state
.device_add_pending
) {
365 s
->pcmcia_state
.device_add_pending
= 1;
366 schedule_work(&s
->device_add
);
371 static int pcmcia_device_probe(struct device
* dev
)
373 struct pcmcia_device
*p_dev
;
374 struct pcmcia_driver
*p_drv
;
375 struct pcmcia_device_id
*did
;
376 struct pcmcia_socket
*s
;
379 dev
= get_device(dev
);
383 p_dev
= to_pcmcia_dev(dev
);
384 p_drv
= to_pcmcia_drv(dev
->driver
);
387 if ((!p_drv
->probe
) || (!p_dev
->function_config
) ||
388 (!try_module_get(p_drv
->owner
))) {
393 p_dev
->p_state
&= ~CLIENT_UNBOUND
;
394 p_dev
->handle
= p_dev
;
396 ret
= p_drv
->probe(p_dev
);
400 /* handle pseudo multifunction devices:
401 * there are at most two pseudo multifunction devices.
402 * if we're matching against the first, schedule a
403 * call which will then check whether there are two
404 * pseudo devices, and if not, add the second one.
406 did
= (struct pcmcia_device_id
*) p_dev
->dev
.driver_data
;
407 if (did
&& (did
->match_flags
& PCMCIA_DEV_ID_MATCH_DEVICE_NO
) &&
408 (p_dev
->socket
->device_count
== 1) && (p_dev
->device_no
== 0))
409 pcmcia_add_pseudo_device(p_dev
->socket
);
413 module_put(p_drv
->owner
);
421 static int pcmcia_device_remove(struct device
* dev
)
423 struct pcmcia_device
*p_dev
;
424 struct pcmcia_driver
*p_drv
;
427 /* detach the "instance" */
428 p_dev
= to_pcmcia_dev(dev
);
429 p_drv
= to_pcmcia_drv(dev
->driver
);
434 p_drv
->remove(p_dev
);
436 /* check for proper unloading */
437 if (p_dev
->p_state
& (CLIENT_IRQ_REQ
|CLIENT_IO_REQ
|CLIENT_CONFIG_LOCKED
))
438 printk(KERN_INFO
"pcmcia: driver %s did not release config properly\n",
441 for (i
= 0; i
< MAX_WIN
; i
++)
442 if (p_dev
->p_state
& CLIENT_WIN_REQ(i
))
443 printk(KERN_INFO
"pcmcia: driver %s did not release windows properly\n",
446 /* references from pcmcia_probe_device */
447 p_dev
->p_state
= CLIENT_UNBOUND
;
448 pcmcia_put_dev(p_dev
);
449 module_put(p_drv
->owner
);
456 * Removes a PCMCIA card from the device tree and socket list.
458 static void pcmcia_card_remove(struct pcmcia_socket
*s
)
460 struct pcmcia_device
*p_dev
;
463 ds_dbg(2, "unbind_request(%d)\n", s
->sock
);
468 /* unregister all pcmcia_devices registered with this socket*/
469 spin_lock_irqsave(&pcmcia_dev_list_lock
, flags
);
470 if (list_empty(&s
->devices_list
)) {
471 spin_unlock_irqrestore(&pcmcia_dev_list_lock
, flags
);
474 p_dev
= list_entry((&s
->devices_list
)->next
, struct pcmcia_device
, socket_device_list
);
475 list_del(&p_dev
->socket_device_list
);
476 p_dev
->p_state
|= CLIENT_STALE
;
477 spin_unlock_irqrestore(&pcmcia_dev_list_lock
, flags
);
479 device_unregister(&p_dev
->dev
);
483 } /* unbind_request */
487 * pcmcia_device_query -- determine information about a pcmcia device
489 static int pcmcia_device_query(struct pcmcia_device
*p_dev
)
491 cistpl_manfid_t manf_id
;
492 cistpl_funcid_t func_id
;
493 cistpl_vers_1_t
*vers1
;
496 vers1
= kmalloc(sizeof(*vers1
), GFP_KERNEL
);
500 if (!pccard_read_tuple(p_dev
->socket
, p_dev
->func
,
501 CISTPL_MANFID
, &manf_id
)) {
502 p_dev
->manf_id
= manf_id
.manf
;
503 p_dev
->card_id
= manf_id
.card
;
504 p_dev
->has_manf_id
= 1;
505 p_dev
->has_card_id
= 1;
508 if (!pccard_read_tuple(p_dev
->socket
, p_dev
->func
,
509 CISTPL_FUNCID
, &func_id
)) {
510 p_dev
->func_id
= func_id
.func
;
511 p_dev
->has_func_id
= 1;
513 /* rule of thumb: cards with no FUNCID, but with
514 * common memory device geometry information, are
515 * probably memory cards (from pcmcia-cs) */
516 cistpl_device_geo_t
*devgeo
;
518 devgeo
= kmalloc(sizeof(*devgeo
), GFP_KERNEL
);
523 if (!pccard_read_tuple(p_dev
->socket
, p_dev
->func
,
524 CISTPL_DEVICE_GEO
, devgeo
)) {
525 ds_dbg(0, "mem device geometry probably means "
527 p_dev
->func_id
= CISTPL_FUNCID_MEMORY
;
528 p_dev
->has_func_id
= 1;
533 if (!pccard_read_tuple(p_dev
->socket
, p_dev
->func
, CISTPL_VERS_1
,
535 for (i
=0; i
< vers1
->ns
; i
++) {
539 tmp
= vers1
->str
+ vers1
->ofs
[i
];
541 length
= strlen(tmp
) + 1;
542 if ((length
< 2) || (length
> 255))
545 p_dev
->prod_id
[i
] = kmalloc(sizeof(char) * length
,
547 if (!p_dev
->prod_id
[i
])
550 p_dev
->prod_id
[i
] = strncpy(p_dev
->prod_id
[i
],
560 /* device_add_lock is needed to avoid double registration by cardmgr and kernel.
561 * Serializes pcmcia_device_add; will most likely be removed in future.
563 * While it has the caveat that adding new PCMCIA devices inside(!) device_register()
564 * won't work, this doesn't matter much at the moment: the driver core doesn't
567 static DEFINE_MUTEX(device_add_lock
);
569 struct pcmcia_device
* pcmcia_device_add(struct pcmcia_socket
*s
, unsigned int function
)
571 struct pcmcia_device
*p_dev
, *tmp_dev
;
575 s
= pcmcia_get_socket(s
);
579 mutex_lock(&device_add_lock
);
581 /* max of 2 devices per card */
582 if (s
->device_count
== 2)
585 p_dev
= kzalloc(sizeof(struct pcmcia_device
), GFP_KERNEL
);
590 p_dev
->device_no
= (s
->device_count
++);
591 p_dev
->func
= function
;
592 if (s
->functions
<= function
)
593 s
->functions
= function
+ 1;
595 p_dev
->dev
.bus
= &pcmcia_bus_type
;
596 p_dev
->dev
.parent
= s
->dev
.dev
;
597 p_dev
->dev
.release
= pcmcia_release_dev
;
598 bus_id_len
= sprintf (p_dev
->dev
.bus_id
, "%d.%d", p_dev
->socket
->sock
, p_dev
->device_no
);
600 p_dev
->devname
= kmalloc(6 + bus_id_len
+ 1, GFP_KERNEL
);
603 sprintf (p_dev
->devname
, "pcmcia%s", p_dev
->dev
.bus_id
);
606 p_dev
->p_state
= CLIENT_UNBOUND
;
609 spin_lock_irqsave(&pcmcia_dev_list_lock
, flags
);
612 * p_dev->function_config must be the same for all card functions.
613 * Note that this is serialized by the device_add_lock, so that
614 * only one such struct will be created.
616 list_for_each_entry(tmp_dev
, &s
->devices_list
, socket_device_list
)
617 if (p_dev
->func
== tmp_dev
->func
) {
618 p_dev
->function_config
= tmp_dev
->function_config
;
619 kref_get(&p_dev
->function_config
->ref
);
622 /* Add to the list in pcmcia_bus_socket */
623 list_add_tail(&p_dev
->socket_device_list
, &s
->devices_list
);
625 spin_unlock_irqrestore(&pcmcia_dev_list_lock
, flags
);
627 if (!p_dev
->function_config
) {
628 p_dev
->function_config
= kzalloc(sizeof(struct config_t
),
630 if (!p_dev
->function_config
)
632 kref_init(&p_dev
->function_config
->ref
);
635 printk(KERN_NOTICE
"pcmcia: registering new device %s\n",
638 pcmcia_device_query(p_dev
);
640 if (device_register(&p_dev
->dev
))
643 mutex_unlock(&device_add_lock
);
648 spin_lock_irqsave(&pcmcia_dev_list_lock
, flags
);
649 list_del(&p_dev
->socket_device_list
);
650 spin_unlock_irqrestore(&pcmcia_dev_list_lock
, flags
);
653 kfree(p_dev
->devname
);
657 mutex_unlock(&device_add_lock
);
658 pcmcia_put_socket(s
);
664 static int pcmcia_card_add(struct pcmcia_socket
*s
)
667 cistpl_longlink_mfc_t mfc
;
668 unsigned int no_funcs
, i
;
671 if (!(s
->resource_setup_done
))
672 return -EAGAIN
; /* try again, but later... */
674 if (pcmcia_validate_mem(s
))
675 return -EAGAIN
; /* try again, but later... */
677 ret
= pccard_validate_cis(s
, BIND_FN_ALL
, &cisinfo
);
678 if (ret
|| !cisinfo
.Chains
) {
679 ds_dbg(0, "invalid CIS or invalid resources\n");
683 if (!pccard_read_tuple(s
, BIND_FN_ALL
, CISTPL_LONGLINK_MFC
, &mfc
))
688 for (i
=0; i
< no_funcs
; i
++)
689 pcmcia_device_add(s
, i
);
695 static void pcmcia_delayed_add_pseudo_device(void *data
)
697 struct pcmcia_socket
*s
= data
;
698 pcmcia_device_add(s
, 0);
699 s
->pcmcia_state
.device_add_pending
= 0;
702 static int pcmcia_requery(struct device
*dev
, void * _data
)
704 struct pcmcia_device
*p_dev
= to_pcmcia_dev(dev
);
705 if (!p_dev
->dev
.driver
)
706 pcmcia_device_query(p_dev
);
711 static void pcmcia_bus_rescan(struct pcmcia_socket
*skt
)
716 /* must be called with skt_mutex held */
717 spin_lock_irqsave(&pcmcia_dev_list_lock
, flags
);
718 if (list_empty(&skt
->devices_list
))
720 spin_unlock_irqrestore(&pcmcia_dev_list_lock
, flags
);
722 /* if no devices were added for this socket yet because of
723 * missing resource information or other trouble, we need to
726 int ret
= pcmcia_card_add(skt
);
731 /* some device information might have changed because of a CIS
732 * update or because we can finally read it correctly... so
733 * determine it again, overwriting old values if necessary. */
734 bus_for_each_dev(&pcmcia_bus_type
, NULL
, NULL
, pcmcia_requery
);
736 /* we re-scan all devices, not just the ones connected to this
737 * socket. This does not matter, though. */
738 bus_rescan_devices(&pcmcia_bus_type
);
741 static inline int pcmcia_devmatch(struct pcmcia_device
*dev
,
742 struct pcmcia_device_id
*did
)
744 if (did
->match_flags
& PCMCIA_DEV_ID_MATCH_MANF_ID
) {
745 if ((!dev
->has_manf_id
) || (dev
->manf_id
!= did
->manf_id
))
749 if (did
->match_flags
& PCMCIA_DEV_ID_MATCH_CARD_ID
) {
750 if ((!dev
->has_card_id
) || (dev
->card_id
!= did
->card_id
))
754 if (did
->match_flags
& PCMCIA_DEV_ID_MATCH_FUNCTION
) {
755 if (dev
->func
!= did
->function
)
759 if (did
->match_flags
& PCMCIA_DEV_ID_MATCH_PROD_ID1
) {
760 if (!dev
->prod_id
[0])
762 if (strcmp(did
->prod_id
[0], dev
->prod_id
[0]))
766 if (did
->match_flags
& PCMCIA_DEV_ID_MATCH_PROD_ID2
) {
767 if (!dev
->prod_id
[1])
769 if (strcmp(did
->prod_id
[1], dev
->prod_id
[1]))
773 if (did
->match_flags
& PCMCIA_DEV_ID_MATCH_PROD_ID3
) {
774 if (!dev
->prod_id
[2])
776 if (strcmp(did
->prod_id
[2], dev
->prod_id
[2]))
780 if (did
->match_flags
& PCMCIA_DEV_ID_MATCH_PROD_ID4
) {
781 if (!dev
->prod_id
[3])
783 if (strcmp(did
->prod_id
[3], dev
->prod_id
[3]))
787 if (did
->match_flags
& PCMCIA_DEV_ID_MATCH_DEVICE_NO
) {
788 if (dev
->device_no
!= did
->device_no
)
792 if (did
->match_flags
& PCMCIA_DEV_ID_MATCH_FUNC_ID
) {
793 if ((!dev
->has_func_id
) || (dev
->func_id
!= did
->func_id
))
796 /* if this is a pseudo-multi-function device,
797 * we need explicit matches */
798 if (did
->match_flags
& PCMCIA_DEV_ID_MATCH_DEVICE_NO
)
803 /* also, FUNC_ID matching needs to be activated by userspace
804 * after it has re-checked that there is no possible module
805 * with a prod_id/manf_id/card_id match.
807 if (!dev
->allow_func_id_match
)
811 if (did
->match_flags
& PCMCIA_DEV_ID_MATCH_FAKE_CIS
) {
812 if (!dev
->socket
->fake_cis
)
813 pcmcia_load_firmware(dev
, did
->cisfile
);
815 if (!dev
->socket
->fake_cis
)
819 if (did
->match_flags
& PCMCIA_DEV_ID_MATCH_ANONYMOUS
) {
824 if (dev
->has_manf_id
|| dev
->has_card_id
|| dev
->has_func_id
)
828 dev
->dev
.driver_data
= (void *) did
;
834 static int pcmcia_bus_match(struct device
* dev
, struct device_driver
* drv
) {
835 struct pcmcia_device
* p_dev
= to_pcmcia_dev(dev
);
836 struct pcmcia_driver
* p_drv
= to_pcmcia_drv(drv
);
837 struct pcmcia_device_id
*did
= p_drv
->id_table
;
839 #ifdef CONFIG_PCMCIA_IOCTL
840 /* matching by cardmgr */
841 if (p_dev
->cardmgr
== p_drv
)
845 while (did
&& did
->match_flags
) {
846 if (pcmcia_devmatch(p_dev
, did
))
854 #ifdef CONFIG_HOTPLUG
856 static int pcmcia_bus_uevent(struct device
*dev
, char **envp
, int num_envp
,
857 char *buffer
, int buffer_size
)
859 struct pcmcia_device
*p_dev
;
861 u32 hash
[4] = { 0, 0, 0, 0};
866 p_dev
= to_pcmcia_dev(dev
);
868 /* calculate hashes */
869 for (i
=0; i
<4; i
++) {
870 if (!p_dev
->prod_id
[i
])
872 hash
[i
] = crc32(0, p_dev
->prod_id
[i
], strlen(p_dev
->prod_id
[i
]));
877 if (add_uevent_var(envp
, num_envp
, &i
,
878 buffer
, buffer_size
, &length
,
880 p_dev
->socket
->sock
))
883 if (add_uevent_var(envp
, num_envp
, &i
,
884 buffer
, buffer_size
, &length
,
889 if (add_uevent_var(envp
, num_envp
, &i
,
890 buffer
, buffer_size
, &length
,
891 "MODALIAS=pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X"
892 "pa%08Xpb%08Xpc%08Xpd%08X",
893 p_dev
->has_manf_id
? p_dev
->manf_id
: 0,
894 p_dev
->has_card_id
? p_dev
->card_id
: 0,
895 p_dev
->has_func_id
? p_dev
->func_id
: 0,
911 static int pcmcia_bus_uevent(struct device
*dev
, char **envp
, int num_envp
,
912 char *buffer
, int buffer_size
)
919 /************************ per-device sysfs output ***************************/
921 #define pcmcia_device_attr(field, test, format) \
922 static ssize_t field##_show (struct device *dev, struct device_attribute *attr, char *buf) \
924 struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \
925 return p_dev->test ? sprintf (buf, format, p_dev->field) : -ENODEV; \
928 #define pcmcia_device_stringattr(name, field) \
929 static ssize_t name##_show (struct device *dev, struct device_attribute *attr, char *buf) \
931 struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \
932 return p_dev->field ? sprintf (buf, "%s\n", p_dev->field) : -ENODEV; \
935 pcmcia_device_attr(func
, socket
, "0x%02x\n");
936 pcmcia_device_attr(func_id
, has_func_id
, "0x%02x\n");
937 pcmcia_device_attr(manf_id
, has_manf_id
, "0x%04x\n");
938 pcmcia_device_attr(card_id
, has_card_id
, "0x%04x\n");
939 pcmcia_device_stringattr(prod_id1
, prod_id
[0]);
940 pcmcia_device_stringattr(prod_id2
, prod_id
[1]);
941 pcmcia_device_stringattr(prod_id3
, prod_id
[2]);
942 pcmcia_device_stringattr(prod_id4
, prod_id
[3]);
945 static ssize_t
pcmcia_show_pm_state(struct device
*dev
, struct device_attribute
*attr
, char *buf
)
947 struct pcmcia_device
*p_dev
= to_pcmcia_dev(dev
);
949 if (p_dev
->dev
.power
.power_state
.event
!= PM_EVENT_ON
)
950 return sprintf(buf
, "off\n");
952 return sprintf(buf
, "on\n");
955 static ssize_t
pcmcia_store_pm_state(struct device
*dev
, struct device_attribute
*attr
,
956 const char *buf
, size_t count
)
958 struct pcmcia_device
*p_dev
= to_pcmcia_dev(dev
);
964 if ((p_dev
->dev
.power
.power_state
.event
== PM_EVENT_ON
) &&
965 (!strncmp(buf
, "off", 3)))
966 ret
= dpm_runtime_suspend(dev
, PMSG_SUSPEND
);
967 else if ((p_dev
->dev
.power
.power_state
.event
!= PM_EVENT_ON
) &&
968 (!strncmp(buf
, "on", 2)))
969 dpm_runtime_resume(dev
);
971 return ret
? ret
: count
;
975 static ssize_t
modalias_show(struct device
*dev
, struct device_attribute
*attr
, char *buf
)
977 struct pcmcia_device
*p_dev
= to_pcmcia_dev(dev
);
979 u32 hash
[4] = { 0, 0, 0, 0};
981 /* calculate hashes */
982 for (i
=0; i
<4; i
++) {
983 if (!p_dev
->prod_id
[i
])
985 hash
[i
] = crc32(0,p_dev
->prod_id
[i
],strlen(p_dev
->prod_id
[i
]));
987 return sprintf(buf
, "pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X"
988 "pa%08Xpb%08Xpc%08Xpd%08X\n",
989 p_dev
->has_manf_id
? p_dev
->manf_id
: 0,
990 p_dev
->has_card_id
? p_dev
->card_id
: 0,
991 p_dev
->has_func_id
? p_dev
->func_id
: 0,
992 p_dev
->func
, p_dev
->device_no
,
993 hash
[0], hash
[1], hash
[2], hash
[3]);
996 static ssize_t
pcmcia_store_allow_func_id_match(struct device
*dev
,
997 struct device_attribute
*attr
, const char *buf
, size_t count
)
999 struct pcmcia_device
*p_dev
= to_pcmcia_dev(dev
);
1004 mutex_lock(&p_dev
->socket
->skt_mutex
);
1005 p_dev
->allow_func_id_match
= 1;
1006 mutex_unlock(&p_dev
->socket
->skt_mutex
);
1008 bus_rescan_devices(&pcmcia_bus_type
);
1013 static struct device_attribute pcmcia_dev_attrs
[] = {
1014 __ATTR(function
, 0444, func_show
, NULL
),
1015 __ATTR(pm_state
, 0644, pcmcia_show_pm_state
, pcmcia_store_pm_state
),
1019 __ATTR_RO(prod_id1
),
1020 __ATTR_RO(prod_id2
),
1021 __ATTR_RO(prod_id3
),
1022 __ATTR_RO(prod_id4
),
1023 __ATTR_RO(modalias
),
1024 __ATTR(allow_func_id_match
, 0200, NULL
, pcmcia_store_allow_func_id_match
),
1028 /* PM support, also needed for reset */
1030 static int pcmcia_dev_suspend(struct device
* dev
, pm_message_t state
)
1032 struct pcmcia_device
*p_dev
= to_pcmcia_dev(dev
);
1033 struct pcmcia_driver
*p_drv
= NULL
;
1037 p_drv
= to_pcmcia_drv(dev
->driver
);
1039 if (p_drv
&& p_drv
->suspend
) {
1040 ret
= p_drv
->suspend(p_dev
);
1043 p_dev
->state
|= DEV_SUSPEND
;
1044 if ((p_dev
->state
& DEV_CONFIG
) &&
1045 !(p_dev
->state
& DEV_SUSPEND_NORELEASE
))
1046 pcmcia_release_configuration(p_dev
);
1053 static int pcmcia_dev_resume(struct device
* dev
)
1055 struct pcmcia_device
*p_dev
= to_pcmcia_dev(dev
);
1056 struct pcmcia_driver
*p_drv
= NULL
;
1060 p_drv
= to_pcmcia_drv(dev
->driver
);
1062 if (p_drv
&& p_drv
->resume
) {
1063 p_dev
->state
&= ~DEV_SUSPEND
;
1064 if ((p_dev
->state
& DEV_CONFIG
) &&
1065 !(p_dev
->state
& DEV_SUSPEND_NORELEASE
)){
1066 ret
= pcmcia_request_configuration(p_dev
,
1071 return p_drv
->resume(p_dev
);
1078 static int pcmcia_bus_suspend_callback(struct device
*dev
, void * _data
)
1080 struct pcmcia_socket
*skt
= _data
;
1081 struct pcmcia_device
*p_dev
= to_pcmcia_dev(dev
);
1083 if (p_dev
->socket
!= skt
)
1086 return dpm_runtime_suspend(dev
, PMSG_SUSPEND
);
1089 static int pcmcia_bus_resume_callback(struct device
*dev
, void * _data
)
1091 struct pcmcia_socket
*skt
= _data
;
1092 struct pcmcia_device
*p_dev
= to_pcmcia_dev(dev
);
1094 if (p_dev
->socket
!= skt
)
1097 dpm_runtime_resume(dev
);
1102 static int pcmcia_bus_resume(struct pcmcia_socket
*skt
)
1104 bus_for_each_dev(&pcmcia_bus_type
, NULL
, skt
, pcmcia_bus_resume_callback
);
1108 static int pcmcia_bus_suspend(struct pcmcia_socket
*skt
)
1110 if (bus_for_each_dev(&pcmcia_bus_type
, NULL
, skt
,
1111 pcmcia_bus_suspend_callback
)) {
1112 pcmcia_bus_resume(skt
);
1119 /*======================================================================
1121 The card status event handler.
1123 ======================================================================*/
1125 /* Normally, the event is passed to individual drivers after
1126 * informing userspace. Only for CS_EVENT_CARD_REMOVAL this
1127 * is inversed to maintain historic compatibility.
1130 static int ds_event(struct pcmcia_socket
*skt
, event_t event
, int priority
)
1132 struct pcmcia_socket
*s
= pcmcia_get_socket(skt
);
1134 ds_dbg(1, "ds_event(0x%06x, %d, 0x%p)\n",
1135 event
, priority
, skt
);
1138 case CS_EVENT_CARD_REMOVAL
:
1139 s
->pcmcia_state
.present
= 0;
1140 pcmcia_card_remove(skt
);
1141 handle_event(skt
, event
);
1144 case CS_EVENT_CARD_INSERTION
:
1145 s
->pcmcia_state
.present
= 1;
1146 pcmcia_card_add(skt
);
1147 handle_event(skt
, event
);
1150 case CS_EVENT_EJECTION_REQUEST
:
1153 case CS_EVENT_PM_SUSPEND
:
1154 case CS_EVENT_PM_RESUME
:
1155 case CS_EVENT_RESET_PHYSICAL
:
1156 case CS_EVENT_CARD_RESET
:
1158 handle_event(skt
, event
);
1162 pcmcia_put_socket(s
);
1168 static struct pcmcia_callback pcmcia_bus_callback
= {
1169 .owner
= THIS_MODULE
,
1171 .requery
= pcmcia_bus_rescan
,
1172 .suspend
= pcmcia_bus_suspend
,
1173 .resume
= pcmcia_bus_resume
,
1176 static int __devinit
pcmcia_bus_add_socket(struct class_device
*class_dev
,
1177 struct class_interface
*class_intf
)
1179 struct pcmcia_socket
*socket
= class_get_devdata(class_dev
);
1182 socket
= pcmcia_get_socket(socket
);
1184 printk(KERN_ERR
"PCMCIA obtaining reference to socket %p failed\n", socket
);
1189 * Ugly. But we want to wait for the socket threads to have started up.
1190 * We really should let the drivers themselves drive some of this..
1194 #ifdef CONFIG_PCMCIA_IOCTL
1195 init_waitqueue_head(&socket
->queue
);
1197 INIT_LIST_HEAD(&socket
->devices_list
);
1198 INIT_WORK(&socket
->device_add
, pcmcia_delayed_add_pseudo_device
, socket
);
1199 memset(&socket
->pcmcia_state
, 0, sizeof(u8
));
1200 socket
->device_count
= 0;
1202 ret
= pccard_register_pcmcia(socket
, &pcmcia_bus_callback
);
1204 printk(KERN_ERR
"PCMCIA registration PCCard core failed for socket %p\n", socket
);
1205 pcmcia_put_socket(socket
);
1212 static void pcmcia_bus_remove_socket(struct class_device
*class_dev
,
1213 struct class_interface
*class_intf
)
1215 struct pcmcia_socket
*socket
= class_get_devdata(class_dev
);
1220 socket
->pcmcia_state
.dead
= 1;
1221 pccard_register_pcmcia(socket
, NULL
);
1223 pcmcia_put_socket(socket
);
1229 /* the pcmcia_bus_interface is used to handle pcmcia socket devices */
1230 static struct class_interface pcmcia_bus_interface
= {
1231 .class = &pcmcia_socket_class
,
1232 .add
= &pcmcia_bus_add_socket
,
1233 .remove
= &pcmcia_bus_remove_socket
,
1237 struct bus_type pcmcia_bus_type
= {
1239 .uevent
= pcmcia_bus_uevent
,
1240 .match
= pcmcia_bus_match
,
1241 .dev_attrs
= pcmcia_dev_attrs
,
1242 .probe
= pcmcia_device_probe
,
1243 .remove
= pcmcia_device_remove
,
1244 .suspend
= pcmcia_dev_suspend
,
1245 .resume
= pcmcia_dev_resume
,
1249 static int __init
init_pcmcia_bus(void)
1251 spin_lock_init(&pcmcia_dev_list_lock
);
1253 bus_register(&pcmcia_bus_type
);
1254 class_interface_register(&pcmcia_bus_interface
);
1256 pcmcia_setup_ioctl();
1260 fs_initcall(init_pcmcia_bus
); /* one level after subsys_initcall so that
1261 * pcmcia_socket_class is already registered */
1264 static void __exit
exit_pcmcia_bus(void)
1266 pcmcia_cleanup_ioctl();
1268 class_interface_unregister(&pcmcia_bus_interface
);
1270 bus_unregister(&pcmcia_bus_type
);
1272 module_exit(exit_pcmcia_bus
);