#include <linux/firmware.h>
#include <linux/kref.h>
#include <linux/dma-mapping.h>
+#include <linux/slab.h>
#include <pcmcia/cs_types.h>
#include <pcmcia/cs.h>
#include <pcmcia/ss.h>
#include "cs_internal.h"
-#include "ds_internal.h"
/*====================================================================*/
MODULE_DESCRIPTION("PCMCIA Driver Services");
MODULE_LICENSE("GPL");
-#ifdef CONFIG_PCMCIA_DEBUG
-int ds_pc_debug;
-
-module_param_named(pc_debug, ds_pc_debug, int, 0644);
-
-#define ds_dbg(lvl, fmt, arg...) do { \
- if (ds_pc_debug > (lvl)) \
- printk(KERN_DEBUG "ds: " fmt , ## arg); \
-} while (0)
-#define ds_dev_dbg(lvl, dev, fmt, arg...) do { \
- if (ds_pc_debug > (lvl)) \
- dev_printk(KERN_DEBUG, dev, "ds: " fmt , ## arg); \
-} while (0)
-#else
-#define ds_dbg(lvl, fmt, arg...) do { } while (0)
-#define ds_dev_dbg(lvl, dev, fmt, arg...) do { } while (0)
-#endif
-
-spinlock_t pcmcia_dev_list_lock;
/*====================================================================*/
-/* code which was in cs.c before */
-
-/* String tables for error messages */
-
-typedef struct lookup_t {
- int key;
- char *msg;
-} lookup_t;
-
-static const lookup_t error_table[] = {
- { CS_SUCCESS, "Operation succeeded" },
- { CS_BAD_ATTRIBUTE, "Bad attribute", },
- { CS_BAD_BASE, "Bad base address" },
- { CS_BAD_IRQ, "Bad IRQ" },
- { CS_BAD_OFFSET, "Bad offset" },
- { CS_BAD_PAGE, "Bad page number" },
- { CS_BAD_SIZE, "Bad size" },
- { CS_BAD_TYPE, "Bad type" },
- { -EIO, "Input/Output error" },
- { CS_NO_CARD, "No card present" },
- { -EINVAL, "Bad parameter" },
- { CS_GENERAL_FAILURE, "General failure" },
- { CS_BAD_ARGS, "Bad arguments" },
- { CS_CONFIGURATION_LOCKED, "Configuration locked" },
- { CS_IN_USE, "Resource in use" },
- { CS_NO_MORE_ITEMS, "No more items" },
- { CS_OUT_OF_RESOURCE, "Out of resource" },
- { CS_BAD_HANDLE, "Bad handle" },
- { CS_BAD_TUPLE, "Bad CIS tuple" }
-};
-
-
-static const lookup_t service_table[] = {
- { AccessConfigurationRegister, "AccessConfigurationRegister" },
- { AddSocketServices, "AddSocketServices" },
- { AdjustResourceInfo, "AdjustResourceInfo" },
- { CheckEraseQueue, "CheckEraseQueue" },
- { CloseMemory, "CloseMemory" },
- { DeregisterClient, "DeregisterClient" },
- { DeregisterEraseQueue, "DeregisterEraseQueue" },
- { GetCardServicesInfo, "GetCardServicesInfo" },
- { GetClientInfo, "GetClientInfo" },
- { GetConfigurationInfo, "GetConfigurationInfo" },
- { GetEventMask, "GetEventMask" },
- { GetFirstClient, "GetFirstClient" },
- { GetFirstRegion, "GetFirstRegion" },
- { GetFirstTuple, "GetFirstTuple" },
- { GetNextClient, "GetNextClient" },
- { GetNextRegion, "GetNextRegion" },
- { GetNextTuple, "GetNextTuple" },
- { GetStatus, "GetStatus" },
- { GetTupleData, "GetTupleData" },
- { MapMemPage, "MapMemPage" },
- { ModifyConfiguration, "ModifyConfiguration" },
- { ModifyWindow, "ModifyWindow" },
- { OpenMemory, "OpenMemory" },
- { ParseTuple, "ParseTuple" },
- { ReadMemory, "ReadMemory" },
- { RegisterClient, "RegisterClient" },
- { RegisterEraseQueue, "RegisterEraseQueue" },
- { RegisterMTD, "RegisterMTD" },
- { ReleaseConfiguration, "ReleaseConfiguration" },
- { ReleaseIO, "ReleaseIO" },
- { ReleaseIRQ, "ReleaseIRQ" },
- { ReleaseWindow, "ReleaseWindow" },
- { RequestConfiguration, "RequestConfiguration" },
- { RequestIO, "RequestIO" },
- { RequestIRQ, "RequestIRQ" },
- { RequestSocketMask, "RequestSocketMask" },
- { RequestWindow, "RequestWindow" },
- { ResetCard, "ResetCard" },
- { SetEventMask, "SetEventMask" },
- { ValidateCIS, "ValidateCIS" },
- { WriteMemory, "WriteMemory" },
- { BindDevice, "BindDevice" },
- { BindMTD, "BindMTD" },
- { ReportError, "ReportError" },
- { SuspendCard, "SuspendCard" },
- { ResumeCard, "ResumeCard" },
- { EjectCard, "EjectCard" },
- { InsertCard, "InsertCard" },
- { ReplaceCIS, "ReplaceCIS" }
-};
-
-
-static int pcmcia_report_error(struct pcmcia_device *p_dev, error_info_t *err)
-{
- int i;
- char *serv;
-
- if (!p_dev)
- printk(KERN_NOTICE);
- else
- printk(KERN_NOTICE "%s: ", p_dev->dev.bus_id);
-
- for (i = 0; i < ARRAY_SIZE(service_table); i++)
- if (service_table[i].key == err->func)
- break;
- if (i < ARRAY_SIZE(service_table))
- serv = service_table[i].msg;
- else
- serv = "Unknown service number";
-
- for (i = 0; i < ARRAY_SIZE(error_table); i++)
- if (error_table[i].key == err->retcode)
- break;
- if (i < ARRAY_SIZE(error_table))
- printk("%s: %s\n", serv, error_table[i].msg);
- else
- printk("%s: Unknown error code %#x\n", serv, err->retcode);
-
- return 0;
-} /* report_error */
-
-/* end of code which was in cs.c before */
-
-/*======================================================================*/
-
-void cs_error(struct pcmcia_device *p_dev, int func, int ret)
-{
- error_info_t err = { func, ret };
- pcmcia_report_error(p_dev, &err);
-}
-EXPORT_SYMBOL(cs_error);
-
-
static void pcmcia_check_driver(struct pcmcia_driver *p_drv)
{
struct pcmcia_device_id *did = p_drv->id_table;
"function\n", p_drv->drv.name);
while (did && did->match_flags) {
- for (i=0; i<4; i++) {
+ for (i = 0; i < 4; i++) {
if (!did->prod_id[i])
continue;
__u16 match_flags, manf_id, card_id;
__u8 func_id, function, device_no;
__u32 prod_id_hash[4] = {0, 0, 0, 0};
- int fields=0;
+ int fields = 0;
int retval = 0;
fields = sscanf(buf, "%hx %hx %hx %hhx %hhx %hhx %x %x %x %x",
if (!dynid)
return -ENOMEM;
- INIT_LIST_HEAD(&dynid->node);
dynid->id.match_flags = match_flags;
dynid->id.manf_id = manf_id;
dynid->id.card_id = card_id;
dynid->id.device_no = device_no;
memcpy(dynid->id.prod_id_hash, prod_id_hash, sizeof(__u32) * 4);
- spin_lock(&pdrv->dynids.lock);
- list_add_tail(&pdrv->dynids.list, &dynid->node);
- spin_unlock(&pdrv->dynids.lock);
+ mutex_lock(&pdrv->dynids.lock);
+ list_add_tail(&dynid->node, &pdrv->dynids.list);
+ mutex_unlock(&pdrv->dynids.lock);
if (get_driver(&pdrv->drv)) {
retval = driver_attach(&pdrv->drv);
{
struct pcmcia_dynid *dynid, *n;
- spin_lock(&drv->dynids.lock);
+ mutex_lock(&drv->dynids.lock);
list_for_each_entry_safe(dynid, n, &drv->dynids.list, node) {
list_del(&dynid->node);
kfree(dynid);
}
- spin_unlock(&drv->dynids.lock);
+ mutex_unlock(&drv->dynids.lock);
}
static int
/* initialize common fields */
driver->drv.bus = &pcmcia_bus_type;
driver->drv.owner = driver->owner;
- spin_lock_init(&driver->dynids.lock);
+ mutex_init(&driver->dynids.lock);
INIT_LIST_HEAD(&driver->dynids.list);
- ds_dbg(3, "registering driver %s\n", driver->drv.name);
+ pr_debug("registering driver %s\n", driver->drv.name);
error = driver_register(&driver->drv);
if (error < 0)
*/
void pcmcia_unregister_driver(struct pcmcia_driver *driver)
{
- ds_dbg(3, "unregistering driver %s\n", driver->drv.name);
+ pr_debug("unregistering driver %s\n", driver->drv.name);
driver_unregister(&driver->drv);
pcmcia_free_dynids(driver);
}
/* pcmcia_device handling */
-struct pcmcia_device * pcmcia_get_dev(struct pcmcia_device *p_dev)
+struct pcmcia_device *pcmcia_get_dev(struct pcmcia_device *p_dev)
{
struct device *tmp_dev;
tmp_dev = get_device(&p_dev->dev);
static void pcmcia_release_function(struct kref *ref)
{
struct config_t *c = container_of(ref, struct config_t, ref);
- ds_dbg(1, "releasing config_t\n");
+ pr_debug("releasing config_t\n");
kfree(c);
}
static void pcmcia_release_dev(struct device *dev)
{
struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
- ds_dev_dbg(1, dev, "releasing device\n");
+ int i;
+ dev_dbg(dev, "releasing device\n");
pcmcia_put_socket(p_dev->socket);
+ for (i = 0; i < 4; i++)
+ kfree(p_dev->prod_id[i]);
kfree(p_dev->devname);
kref_put(&p_dev->function_config->ref, pcmcia_release_function);
kfree(p_dev);
}
-static void pcmcia_add_device_later(struct pcmcia_socket *s, int mfc)
-{
- if (!s->pcmcia_state.device_add_pending) {
- ds_dev_dbg(1, &s->dev, "scheduling to add %s secondary"
- " device to %d\n", mfc ? "mfc" : "pfc", s->sock);
- s->pcmcia_state.device_add_pending = 1;
- s->pcmcia_state.mfc_pfc = mfc;
- schedule_work(&s->device_add);
- }
- return;
-}
-static int pcmcia_device_probe(struct device * dev)
+static int pcmcia_device_probe(struct device *dev)
{
struct pcmcia_device *p_dev;
struct pcmcia_driver *p_drv;
- struct pcmcia_device_id *did;
struct pcmcia_socket *s;
cistpl_config_t cis_config;
int ret = 0;
p_drv = to_pcmcia_drv(dev->driver);
s = p_dev->socket;
- ds_dev_dbg(1, dev, "trying to bind to %s\n", p_drv->drv.name);
+ dev_dbg(dev, "trying to bind to %s\n", p_drv->drv.name);
if ((!p_drv->probe) || (!p_dev->function_config) ||
(!try_module_get(p_drv->owner))) {
ret = p_drv->probe(p_dev);
if (ret) {
- ds_dev_dbg(1, dev, "binding to %s failed with %d\n",
+ dev_dbg(dev, "binding to %s failed with %d\n",
p_drv->drv.name, ret);
goto put_module;
}
- /* handle pseudo multifunction devices:
- * there are at most two pseudo multifunction devices.
- * if we're matching against the first, schedule a
- * call which will then check whether there are two
- * pseudo devices, and if not, add the second one.
- */
- did = p_dev->dev.driver_data;
- if (did && (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) &&
+ mutex_lock(&s->ops_mutex);
+ if ((s->pcmcia_state.has_pfc) &&
(p_dev->socket->device_count == 1) && (p_dev->device_no == 0))
- pcmcia_add_device_later(p_dev->socket, 0);
+ pcmcia_parse_uevents(s, PCMCIA_UEVENT_REQUERY);
+ mutex_unlock(&s->ops_mutex);
- put_module:
+put_module:
if (ret)
module_put(p_drv->owner);
- put_dev:
+put_dev:
if (ret)
put_device(dev);
- return (ret);
+ return ret;
}
{
struct pcmcia_device *p_dev;
struct pcmcia_device *tmp;
- unsigned long flags;
- ds_dev_dbg(2, leftover ? &leftover->dev : &s->dev,
+ dev_dbg(leftover ? &leftover->dev : &s->dev,
"pcmcia_card_remove(%d) %s\n", s->sock,
leftover ? leftover->devname : "");
+ mutex_lock(&s->ops_mutex);
if (!leftover)
s->device_count = 0;
else
s->device_count = 1;
+ mutex_unlock(&s->ops_mutex);
/* unregister all pcmcia_devices registered with this socket, except leftover */
list_for_each_entry_safe(p_dev, tmp, &s->devices_list, socket_device_list) {
if (p_dev == leftover)
continue;
- spin_lock_irqsave(&pcmcia_dev_list_lock, flags);
+ mutex_lock(&s->ops_mutex);
list_del(&p_dev->socket_device_list);
- p_dev->_removed=1;
- spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
+ mutex_unlock(&s->ops_mutex);
- ds_dev_dbg(2, &p_dev->dev, "unregistering device\n");
+ dev_dbg(&p_dev->dev, "unregistering device\n");
device_unregister(&p_dev->dev);
}
return;
}
-static int pcmcia_device_remove(struct device * dev)
+static int pcmcia_device_remove(struct device *dev)
{
struct pcmcia_device *p_dev;
struct pcmcia_driver *p_drv;
- struct pcmcia_device_id *did;
int i;
p_dev = to_pcmcia_dev(dev);
p_drv = to_pcmcia_drv(dev->driver);
- ds_dev_dbg(1, dev, "removing device\n");
+ dev_dbg(dev, "removing device\n");
/* If we're removing the primary module driving a
* pseudo multi-function card, we need to unbind
* all devices
*/
- did = p_dev->dev.driver_data;
- if (did && (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) &&
- (p_dev->socket->device_count != 0) &&
+ if ((p_dev->socket->pcmcia_state.has_pfc) &&
+ (p_dev->socket->device_count > 0) &&
(p_dev->device_no == 0))
pcmcia_card_remove(p_dev->socket, p_dev);
return 0;
if (p_drv->remove)
- p_drv->remove(p_dev);
+ p_drv->remove(p_dev);
p_dev->dev_node = NULL;
if (!vers1)
return -ENOMEM;
- if (!pccard_read_tuple(p_dev->socket, p_dev->func,
+ if (!pccard_read_tuple(p_dev->socket, BIND_FN_ALL,
CISTPL_MANFID, &manf_id)) {
+ mutex_lock(&p_dev->socket->ops_mutex);
p_dev->manf_id = manf_id.manf;
p_dev->card_id = manf_id.card;
p_dev->has_manf_id = 1;
p_dev->has_card_id = 1;
+ mutex_unlock(&p_dev->socket->ops_mutex);
}
if (!pccard_read_tuple(p_dev->socket, p_dev->func,
CISTPL_FUNCID, &func_id)) {
+ mutex_lock(&p_dev->socket->ops_mutex);
p_dev->func_id = func_id.func;
p_dev->has_func_id = 1;
+ mutex_unlock(&p_dev->socket->ops_mutex);
} else {
/* rule of thumb: cards with no FUNCID, but with
* common memory device geometry information, are
}
if (!pccard_read_tuple(p_dev->socket, p_dev->func,
CISTPL_DEVICE_GEO, devgeo)) {
- ds_dev_dbg(0, &p_dev->dev,
+ dev_dbg(&p_dev->dev,
"mem device geometry probably means "
"FUNCID_MEMORY\n");
+ mutex_lock(&p_dev->socket->ops_mutex);
p_dev->func_id = CISTPL_FUNCID_MEMORY;
p_dev->has_func_id = 1;
+ mutex_unlock(&p_dev->socket->ops_mutex);
}
kfree(devgeo);
}
- if (!pccard_read_tuple(p_dev->socket, p_dev->func, CISTPL_VERS_1,
+ if (!pccard_read_tuple(p_dev->socket, BIND_FN_ALL, CISTPL_VERS_1,
vers1)) {
- for (i=0; i < vers1->ns; i++) {
+ mutex_lock(&p_dev->socket->ops_mutex);
+ for (i = 0; i < min_t(unsigned int, 4, vers1->ns); i++) {
char *tmp;
unsigned int length;
+ char *new;
tmp = vers1->str + vers1->ofs[i];
if ((length < 2) || (length > 255))
continue;
- p_dev->prod_id[i] = kmalloc(sizeof(char) * length,
- GFP_KERNEL);
- if (!p_dev->prod_id[i])
+ new = kmalloc(sizeof(char) * length, GFP_KERNEL);
+ if (!new)
continue;
- p_dev->prod_id[i] = strncpy(p_dev->prod_id[i],
- tmp, length);
+ new = strncpy(new, tmp, length);
+
+ tmp = p_dev->prod_id[i];
+ p_dev->prod_id[i] = new;
+ kfree(tmp);
}
+ mutex_unlock(&p_dev->socket->ops_mutex);
}
kfree(vers1);
*/
static DEFINE_MUTEX(device_add_lock);
-struct pcmcia_device * pcmcia_device_add(struct pcmcia_socket *s, unsigned int function)
+struct pcmcia_device *pcmcia_device_add(struct pcmcia_socket *s, unsigned int function)
{
struct pcmcia_device *p_dev, *tmp_dev;
- unsigned long flags;
- int bus_id_len;
+ int i;
s = pcmcia_get_socket(s);
if (!s)
mutex_lock(&device_add_lock);
- ds_dbg(3, "adding device to %d, function %d\n", s->sock, function);
-
- /* max of 4 devices per card */
- if (s->device_count == 4)
- goto err_put;
+ pr_debug("adding device to %d, function %d\n", s->sock, function);
p_dev = kzalloc(sizeof(struct pcmcia_device), GFP_KERNEL);
if (!p_dev)
goto err_put;
- p_dev->socket = s;
+ mutex_lock(&s->ops_mutex);
p_dev->device_no = (s->device_count++);
+ mutex_unlock(&s->ops_mutex);
+
+ /* max of 2 PFC devices */
+ if ((p_dev->device_no >= 2) && (function == 0))
+ goto err_free;
+
+ /* max of 4 devices overall */
+ if (p_dev->device_no >= 4)
+ goto err_free;
+
+ p_dev->socket = s;
p_dev->func = function;
p_dev->dev.bus = &pcmcia_bus_type;
/* by default don't allow DMA */
p_dev->dma_mask = DMA_MASK_NONE;
p_dev->dev.dma_mask = &p_dev->dma_mask;
- bus_id_len = sprintf (p_dev->dev.bus_id, "%d.%d", p_dev->socket->sock, p_dev->device_no);
-
- p_dev->devname = kmalloc(6 + bus_id_len + 1, GFP_KERNEL);
+ dev_set_name(&p_dev->dev, "%d.%d", p_dev->socket->sock, p_dev->device_no);
+ if (!dev_name(&p_dev->dev))
+ goto err_free;
+ p_dev->devname = kasprintf(GFP_KERNEL, "pcmcia%s", dev_name(&p_dev->dev));
if (!p_dev->devname)
goto err_free;
- sprintf (p_dev->devname, "pcmcia%s", p_dev->dev.bus_id);
- ds_dev_dbg(3, &p_dev->dev, "devname is %s\n", p_dev->devname);
+ dev_dbg(&p_dev->dev, "devname is %s\n", p_dev->devname);
- spin_lock_irqsave(&pcmcia_dev_list_lock, flags);
+ mutex_lock(&s->ops_mutex);
/*
* p_dev->function_config must be the same for all card functions.
* Note that this is serialized by the device_add_lock, so that
* only one such struct will be created.
*/
- list_for_each_entry(tmp_dev, &s->devices_list, socket_device_list)
- if (p_dev->func == tmp_dev->func) {
+ list_for_each_entry(tmp_dev, &s->devices_list, socket_device_list)
+ if (p_dev->func == tmp_dev->func) {
p_dev->function_config = tmp_dev->function_config;
+ p_dev->io = tmp_dev->io;
+ p_dev->irq = tmp_dev->irq;
kref_get(&p_dev->function_config->ref);
}
/* Add to the list in pcmcia_bus_socket */
list_add(&p_dev->socket_device_list, &s->devices_list);
- spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
+ mutex_unlock(&s->ops_mutex);
if (!p_dev->function_config) {
- ds_dev_dbg(3, &p_dev->dev, "creating config_t\n");
+ dev_dbg(&p_dev->dev, "creating config_t\n");
p_dev->function_config = kzalloc(sizeof(struct config_t),
GFP_KERNEL);
if (!p_dev->function_config)
return p_dev;
err_unreg:
- spin_lock_irqsave(&pcmcia_dev_list_lock, flags);
+ mutex_lock(&s->ops_mutex);
list_del(&p_dev->socket_device_list);
- spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
+ mutex_unlock(&s->ops_mutex);
err_free:
+ mutex_lock(&s->ops_mutex);
+ s->device_count--;
+ mutex_unlock(&s->ops_mutex);
+
+ for (i = 0; i < 4; i++)
+ kfree(p_dev->prod_id[i]);
kfree(p_dev->devname);
kfree(p_dev);
- s->device_count--;
err_put:
mutex_unlock(&device_add_lock);
pcmcia_put_socket(s);
{
cistpl_longlink_mfc_t mfc;
unsigned int no_funcs, i, no_chains;
- int ret = 0;
+ int ret = -EAGAIN;
+ mutex_lock(&s->ops_mutex);
if (!(s->resource_setup_done)) {
- ds_dev_dbg(3, &s->dev,
+ dev_dbg(&s->dev,
"no resources available, delaying card_add\n");
+ mutex_unlock(&s->ops_mutex);
return -EAGAIN; /* try again, but later... */
}
if (pcmcia_validate_mem(s)) {
- ds_dev_dbg(3, &s->dev, "validating mem resources failed, "
+ dev_dbg(&s->dev, "validating mem resources failed, "
"delaying card_add\n");
+ mutex_unlock(&s->ops_mutex);
return -EAGAIN; /* try again, but later... */
}
+ mutex_unlock(&s->ops_mutex);
- ret = pccard_validate_cis(s, BIND_FN_ALL, &no_chains);
+ ret = pccard_validate_cis(s, &no_chains);
if (ret || !no_chains) {
- ds_dev_dbg(0, &s->dev, "invalid CIS or invalid resources\n");
+ dev_dbg(&s->dev, "invalid CIS or invalid resources\n");
return -ENODEV;
}
no_funcs = 1;
s->functions = no_funcs;
- for (i=0; i < no_funcs; i++)
+ for (i = 0; i < no_funcs; i++)
pcmcia_device_add(s, i);
- return (ret);
+ return ret;
}
-static void pcmcia_delayed_add_device(struct work_struct *work)
-{
- struct pcmcia_socket *s =
- container_of(work, struct pcmcia_socket, device_add);
- ds_dev_dbg(1, &s->dev, "adding additional device to %d\n", s->sock);
- pcmcia_device_add(s, s->pcmcia_state.mfc_pfc);
- s->pcmcia_state.device_add_pending = 0;
- s->pcmcia_state.mfc_pfc = 0;
-}
-
-static int pcmcia_requery(struct device *dev, void * _data)
+static int pcmcia_requery_callback(struct device *dev, void * _data)
{
struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
if (!p_dev->dev.driver) {
- ds_dev_dbg(1, dev, "update device information\n");
+ dev_dbg(dev, "update device information\n");
pcmcia_device_query(p_dev);
}
return 0;
}
-static void pcmcia_bus_rescan(struct pcmcia_socket *skt, int new_cis)
-{
- int no_devices = 0;
- int ret = 0;
- unsigned long flags;
- /* must be called with skt_mutex held */
- ds_dev_dbg(0, &skt->dev, "re-scanning socket %d\n", skt->sock);
-
- spin_lock_irqsave(&pcmcia_dev_list_lock, flags);
- if (list_empty(&skt->devices_list))
- no_devices = 1;
- spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags);
-
- /* If this is because of a CIS override, start over */
- if (new_cis && !no_devices)
- pcmcia_card_remove(skt, NULL);
+static void pcmcia_requery(struct pcmcia_socket *s)
+{
+ int has_pfc;
- /* if no devices were added for this socket yet because of
- * missing resource information or other trouble, we need to
- * do this now. */
- if (no_devices || new_cis) {
- ret = pcmcia_card_add(skt);
- if (ret)
- return;
+ if (s->functions == 0) {
+ pcmcia_card_add(s);
+ return;
}
/* some device information might have changed because of a CIS
* update or because we can finally read it correctly... so
* determine it again, overwriting old values if necessary. */
- bus_for_each_dev(&pcmcia_bus_type, NULL, NULL, pcmcia_requery);
+ bus_for_each_dev(&pcmcia_bus_type, NULL, NULL, pcmcia_requery_callback);
+
+ /* if the CIS changed, we need to check whether the number of
+ * functions changed. */
+ if (s->fake_cis) {
+ int old_funcs, new_funcs;
+ cistpl_longlink_mfc_t mfc;
+
+ /* does this cis override add or remove functions? */
+ old_funcs = s->functions;
+
+ if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC,
+ &mfc))
+ new_funcs = mfc.nfn;
+ else
+ new_funcs = 1;
+ if (old_funcs != new_funcs) {
+ /* we need to re-start */
+ pcmcia_card_remove(s, NULL);
+ pcmcia_card_add(s);
+ }
+ }
+
+ /* If the PCMCIA device consists of two pseudo devices,
+ * call pcmcia_device_add() -- which will fail if both
+ * devices are already registered. */
+ mutex_lock(&s->ops_mutex);
+ has_pfc = s->pcmcia_state.has_pfc;
+ mutex_unlock(&s->ops_mutex);
+ if (has_pfc)
+ pcmcia_device_add(s, 0);
/* we re-scan all devices, not just the ones connected to this
* socket. This does not matter, though. */
- ret = bus_rescan_devices(&pcmcia_bus_type);
- if (ret)
- printk(KERN_INFO "pcmcia: bus_rescan_devices failed\n");
+ if (bus_rescan_devices(&pcmcia_bus_type))
+ dev_warn(&s->dev, "rescanning the bus failed\n");
}
+
#ifdef CONFIG_PCMCIA_LOAD_CIS
/**
{
struct pcmcia_socket *s = dev->socket;
const struct firmware *fw;
- char path[FIRMWARE_NAME_MAX];
int ret = -ENOMEM;
- int no_funcs;
- int old_funcs;
cistpl_longlink_mfc_t mfc;
+ int old_funcs, new_funcs = 1;
if (!filename)
return -EINVAL;
- ds_dev_dbg(1, &dev->dev, "trying to load CIS file %s\n", filename);
+ dev_dbg(&dev->dev, "trying to load CIS file %s\n", filename);
- if (strlen(filename) > (FIRMWARE_NAME_MAX - 1)) {
- dev_printk(KERN_WARNING, &dev->dev,
- "pcmcia: CIS filename is too long [%s]\n",
- filename);
- return -EINVAL;
- }
-
- snprintf(path, sizeof(path), "%s", filename);
-
- if (request_firmware(&fw, path, &dev->dev) == 0) {
+ if (request_firmware(&fw, filename, &dev->dev) == 0) {
if (fw->size >= CISTPL_MAX_CIS_SIZE) {
ret = -EINVAL;
dev_printk(KERN_ERR, &dev->dev,
goto release;
}
+ /* we need to re-start if the number of functions changed */
+ old_funcs = s->functions;
+ if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC,
+ &mfc))
+ new_funcs = mfc.nfn;
+
+ if (old_funcs != new_funcs)
+ ret = -EBUSY;
/* update information */
pcmcia_device_query(dev);
- /* does this cis override add or remove functions? */
- old_funcs = s->functions;
-
- if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc))
- no_funcs = mfc.nfn;
- else
- no_funcs = 1;
- s->functions = no_funcs;
-
- if (old_funcs > no_funcs)
- pcmcia_card_remove(s, dev);
- else if (no_funcs > old_funcs)
- pcmcia_add_device_later(s, 1);
+ /* requery (as number of functions might have changed) */
+ pcmcia_parse_uevents(s, PCMCIA_UEVENT_REQUERY);
}
release:
release_firmware(fw);
- return (ret);
+ return ret;
}
#else /* !CONFIG_PCMCIA_LOAD_CIS */
}
if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) {
+ dev_dbg(&dev->dev, "this is a pseudo-multi-function device\n");
+ mutex_lock(&dev->socket->ops_mutex);
+ dev->socket->pcmcia_state.has_pfc = 1;
+ mutex_unlock(&dev->socket->ops_mutex);
if (dev->device_no != did->device_no)
return 0;
}
if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID) {
+ int ret;
+
if ((!dev->has_func_id) || (dev->func_id != did->func_id))
return 0;
/* if this is a pseudo-multi-function device,
* we need explicit matches */
- if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO)
+ if (dev->socket->pcmcia_state.has_pfc)
return 0;
if (dev->device_no)
return 0;
* after it has re-checked that there is no possible module
* with a prod_id/manf_id/card_id match.
*/
- ds_dev_dbg(0, &dev->dev,
- "skipping FUNC_ID match until userspace interaction\n");
- if (!dev->allow_func_id_match)
+ mutex_lock(&dev->socket->ops_mutex);
+ ret = dev->allow_func_id_match;
+ mutex_unlock(&dev->socket->ops_mutex);
+
+ if (!ret) {
+ dev_dbg(&dev->dev,
+ "skipping FUNC_ID match until userspace ACK\n");
return 0;
+ }
}
if (did->match_flags & PCMCIA_DEV_ID_MATCH_FAKE_CIS) {
- ds_dev_dbg(0, &dev->dev, "device needs a fake CIS\n");
- if (!dev->socket->fake_cis)
- pcmcia_load_firmware(dev, did->cisfile);
-
+ dev_dbg(&dev->dev, "device needs a fake CIS\n");
if (!dev->socket->fake_cis)
- return 0;
+ if (pcmcia_load_firmware(dev, did->cisfile))
+ return 0;
}
if (did->match_flags & PCMCIA_DEV_ID_MATCH_ANONYMOUS) {
int i;
- for (i=0; i<4; i++)
+ for (i = 0; i < 4; i++)
if (dev->prod_id[i])
return 0;
if (dev->has_manf_id || dev->has_card_id || dev->has_func_id)
return 0;
}
- dev->dev.driver_data = (void *) did;
-
return 1;
}
-static int pcmcia_bus_match(struct device * dev, struct device_driver * drv) {
- struct pcmcia_device * p_dev = to_pcmcia_dev(dev);
- struct pcmcia_driver * p_drv = to_pcmcia_drv(drv);
+static int pcmcia_bus_match(struct device *dev, struct device_driver *drv)
+{
+ struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
+ struct pcmcia_driver *p_drv = to_pcmcia_drv(drv);
struct pcmcia_device_id *did = p_drv->id_table;
struct pcmcia_dynid *dynid;
/* match dynamic devices first */
- spin_lock(&p_drv->dynids.lock);
+ mutex_lock(&p_drv->dynids.lock);
list_for_each_entry(dynid, &p_drv->dynids.list, node) {
- ds_dev_dbg(3, dev, "trying to match to %s\n", drv->name);
+ dev_dbg(dev, "trying to match to %s\n", drv->name);
if (pcmcia_devmatch(p_dev, &dynid->id)) {
- ds_dev_dbg(0, dev, "matched to %s\n", drv->name);
- spin_unlock(&p_drv->dynids.lock);
+ dev_dbg(dev, "matched to %s\n", drv->name);
+ mutex_unlock(&p_drv->dynids.lock);
return 1;
}
}
- spin_unlock(&p_drv->dynids.lock);
+ mutex_unlock(&p_drv->dynids.lock);
#ifdef CONFIG_PCMCIA_IOCTL
/* matching by cardmgr */
if (p_dev->cardmgr == p_drv) {
- ds_dev_dbg(0, dev, "cardmgr matched to %s\n", drv->name);
+ dev_dbg(dev, "cardmgr matched to %s\n", drv->name);
return 1;
}
#endif
while (did && did->match_flags) {
- ds_dev_dbg(3, dev, "trying to match to %s\n", drv->name);
+ dev_dbg(dev, "trying to match to %s\n", drv->name);
if (pcmcia_devmatch(p_dev, did)) {
- ds_dev_dbg(0, dev, "matched to %s\n", drv->name);
+ dev_dbg(dev, "matched to %s\n", drv->name);
return 1;
}
did++;
p_dev = to_pcmcia_dev(dev);
/* calculate hashes */
- for (i=0; i<4; i++) {
+ for (i = 0; i < 4; i++) {
if (!p_dev->prod_id[i])
continue;
hash[i] = crc32(0, p_dev->prod_id[i], strlen(p_dev->prod_id[i]));
{
int rc;
- down(&dev->sem);
+ device_lock(dev);
rc = pcmcia_dev_suspend(dev, PMSG_SUSPEND);
- up(&dev->sem);
+ device_unlock(dev);
return rc;
}
-static void runtime_resume(struct device *dev)
+static int runtime_resume(struct device *dev)
{
int rc;
- down(&dev->sem);
+ device_lock(dev);
rc = pcmcia_dev_resume(dev);
- up(&dev->sem);
+ device_unlock(dev);
+ return rc;
}
/************************ per-device sysfs output ***************************/
static ssize_t field##_show (struct device *dev, struct device_attribute *attr, char *buf) \
{ \
struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \
- return p_dev->test ? sprintf (buf, format, p_dev->field) : -ENODEV; \
+ return p_dev->test ? sprintf(buf, format, p_dev->field) : -ENODEV; \
}
#define pcmcia_device_stringattr(name, field) \
static ssize_t name##_show (struct device *dev, struct device_attribute *attr, char *buf) \
{ \
struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \
- return p_dev->field ? sprintf (buf, "%s\n", p_dev->field) : -ENODEV; \
+ return p_dev->field ? sprintf(buf, "%s\n", p_dev->field) : -ENODEV; \
}
pcmcia_device_attr(func, socket, "0x%02x\n");
struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
int ret = 0;
- if (!count)
- return -EINVAL;
+ if (!count)
+ return -EINVAL;
if ((!p_dev->suspended) && !strncmp(buf, "off", 3))
ret = runtime_suspend(dev);
else if (p_dev->suspended && !strncmp(buf, "on", 2))
- runtime_resume(dev);
+ ret = runtime_resume(dev);
return ret ? ret : count;
}
u32 hash[4] = { 0, 0, 0, 0};
/* calculate hashes */
- for (i=0; i<4; i++) {
+ for (i = 0; i < 4; i++) {
if (!p_dev->prod_id[i])
continue;
- hash[i] = crc32(0,p_dev->prod_id[i],strlen(p_dev->prod_id[i]));
+ hash[i] = crc32(0, p_dev->prod_id[i],
+ strlen(p_dev->prod_id[i]));
}
return sprintf(buf, "pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X"
"pa%08Xpb%08Xpc%08Xpd%08X\n",
struct device_attribute *attr, const char *buf, size_t count)
{
struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
- int ret;
if (!count)
return -EINVAL;
- mutex_lock(&p_dev->socket->skt_mutex);
+ mutex_lock(&p_dev->socket->ops_mutex);
p_dev->allow_func_id_match = 1;
- mutex_unlock(&p_dev->socket->skt_mutex);
-
- ret = bus_rescan_devices(&pcmcia_bus_type);
- if (ret)
- printk(KERN_INFO "pcmcia: bus_rescan_devices failed after "
- "allowing func_id matches\n");
+ mutex_unlock(&p_dev->socket->ops_mutex);
+ pcmcia_parse_uevents(p_dev->socket, PCMCIA_UEVENT_REQUERY);
return count;
}
/* PM support, also needed for reset */
-static int pcmcia_dev_suspend(struct device * dev, pm_message_t state)
+static int pcmcia_dev_suspend(struct device *dev, pm_message_t state)
{
struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
struct pcmcia_driver *p_drv = NULL;
int ret = 0;
- if (p_dev->suspended)
+ mutex_lock(&p_dev->socket->ops_mutex);
+ if (p_dev->suspended) {
+ mutex_unlock(&p_dev->socket->ops_mutex);
return 0;
+ }
+ p_dev->suspended = 1;
+ mutex_unlock(&p_dev->socket->ops_mutex);
- ds_dev_dbg(2, dev, "suspending\n");
+ dev_dbg(dev, "suspending\n");
if (dev->driver)
p_drv = to_pcmcia_drv(dev->driver);
"pcmcia: device %s (driver %s) did "
"not want to go to sleep (%d)\n",
p_dev->devname, p_drv->drv.name, ret);
+ mutex_lock(&p_dev->socket->ops_mutex);
+ p_dev->suspended = 0;
+ mutex_unlock(&p_dev->socket->ops_mutex);
goto out;
}
}
if (p_dev->device_no == p_dev->func) {
- ds_dev_dbg(2, dev, "releasing configuration\n");
+ dev_dbg(dev, "releasing configuration\n");
pcmcia_release_configuration(p_dev);
}
out:
- if (!ret)
- p_dev->suspended = 1;
return ret;
}
-static int pcmcia_dev_resume(struct device * dev)
+static int pcmcia_dev_resume(struct device *dev)
{
struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
- struct pcmcia_driver *p_drv = NULL;
+ struct pcmcia_driver *p_drv = NULL;
int ret = 0;
- if (!p_dev->suspended)
+ mutex_lock(&p_dev->socket->ops_mutex);
+ if (!p_dev->suspended) {
+ mutex_unlock(&p_dev->socket->ops_mutex);
return 0;
+ }
+ p_dev->suspended = 0;
+ mutex_unlock(&p_dev->socket->ops_mutex);
- ds_dev_dbg(2, dev, "resuming\n");
+ dev_dbg(dev, "resuming\n");
if (dev->driver)
p_drv = to_pcmcia_drv(dev->driver);
goto out;
if (p_dev->device_no == p_dev->func) {
- ds_dev_dbg(2, dev, "requesting configuration\n");
+ dev_dbg(dev, "requesting configuration\n");
ret = pcmcia_request_configuration(p_dev, &p_dev->conf);
if (ret)
goto out;
ret = p_drv->resume(p_dev);
out:
- if (!ret)
- p_dev->suspended = 0;
return ret;
}
static int pcmcia_bus_resume(struct pcmcia_socket *skt)
{
- ds_dev_dbg(2, &skt->dev, "resuming socket %d\n", skt->sock);
+ dev_dbg(&skt->dev, "resuming socket %d\n", skt->sock);
bus_for_each_dev(&pcmcia_bus_type, NULL, skt, pcmcia_bus_resume_callback);
return 0;
}
static int pcmcia_bus_suspend(struct pcmcia_socket *skt)
{
- ds_dev_dbg(2, &skt->dev, "suspending socket %d\n", skt->sock);
+ dev_dbg(&skt->dev, "suspending socket %d\n", skt->sock);
if (bus_for_each_dev(&pcmcia_bus_type, NULL, skt,
pcmcia_bus_suspend_callback)) {
pcmcia_bus_resume(skt);
/*======================================================================
The card status event handler.
-
+
======================================================================*/
/* Normally, the event is passed to individual drivers after
return -ENODEV;
}
- ds_dev_dbg(1, &skt->dev, "ds_event(0x%06x, %d, 0x%p)\n",
+ dev_dbg(&skt->dev, "ds_event(0x%06x, %d, 0x%p)\n",
event, priority, skt);
switch (event) {
case CS_EVENT_CARD_REMOVAL:
- s->pcmcia_state.present = 0;
+ atomic_set(&skt->present, 0);
pcmcia_card_remove(skt, NULL);
handle_event(skt, event);
+ mutex_lock(&s->ops_mutex);
+ destroy_cis_cache(s);
+ mutex_unlock(&s->ops_mutex);
break;
case CS_EVENT_CARD_INSERTION:
- s->pcmcia_state.present = 1;
+ atomic_set(&skt->present, 1);
+ mutex_lock(&s->ops_mutex);
+ s->pcmcia_state.has_pfc = 0;
+ destroy_cis_cache(s); /* to be on the safe side... */
+ mutex_unlock(&s->ops_mutex);
pcmcia_card_add(skt);
handle_event(skt, event);
break;
case CS_EVENT_EJECTION_REQUEST:
break;
- case CS_EVENT_PM_SUSPEND:
case CS_EVENT_PM_RESUME:
+ if (verify_cis_cache(skt) != 0) {
+ dev_dbg(&skt->dev, "cis mismatch - different card\n");
+ /* first, remove the card */
+ ds_event(skt, CS_EVENT_CARD_REMOVAL, CS_EVENT_PRI_HIGH);
+ mutex_lock(&s->ops_mutex);
+ destroy_cis_cache(skt);
+ kfree(skt->fake_cis);
+ skt->fake_cis = NULL;
+ s->functions = 0;
+ mutex_unlock(&s->ops_mutex);
+ /* now, add the new card */
+ ds_event(skt, CS_EVENT_CARD_INSERTION,
+ CS_EVENT_PRI_LOW);
+ }
+ handle_event(skt, event);
+ break;
+
+ case CS_EVENT_PM_SUSPEND:
case CS_EVENT_RESET_PHYSICAL:
case CS_EVENT_CARD_RESET:
default:
return 0;
} /* ds_event */
-
-struct pcmcia_device * pcmcia_dev_present(struct pcmcia_device *_p_dev)
+/*
+ * NOTE: This is racy. There's no guarantee the card will still be
+ * physically present, even if the call to this function returns
+ * non-NULL. Furthermore, the device driver most likely is unbound
+ * almost immediately, so the timeframe where pcmcia_dev_present
+ * returns NULL is probably really really small.
+ */
+struct pcmcia_device *pcmcia_dev_present(struct pcmcia_device *_p_dev)
{
struct pcmcia_device *p_dev;
struct pcmcia_device *ret = NULL;
if (!p_dev)
return NULL;
- if (!p_dev->socket->pcmcia_state.present)
- goto out;
-
- if (p_dev->_removed)
- goto out;
-
- if (p_dev->suspended)
- goto out;
+ if (atomic_read(&p_dev->socket->present) != 0)
+ ret = p_dev;
- ret = p_dev;
- out:
pcmcia_put_dev(p_dev);
return ret;
}
static struct pcmcia_callback pcmcia_bus_callback = {
.owner = THIS_MODULE,
.event = ds_event,
- .requery = pcmcia_bus_rescan,
+ .requery = pcmcia_requery,
+ .validate = pccard_validate_cis,
.suspend = pcmcia_bus_suspend,
.resume = pcmcia_bus_resume,
};
return -ENODEV;
}
- /*
- * Ugly. But we want to wait for the socket threads to have started up.
- * We really should let the drivers themselves drive some of this..
- */
- msleep(250);
+ ret = sysfs_create_bin_file(&dev->kobj, &pccard_cis_attr);
+ if (ret) {
+ dev_printk(KERN_ERR, dev, "PCMCIA registration failed\n");
+ pcmcia_put_socket(socket);
+ return ret;
+ }
#ifdef CONFIG_PCMCIA_IOCTL
init_waitqueue_head(&socket->queue);
#endif
INIT_LIST_HEAD(&socket->devices_list);
- INIT_WORK(&socket->device_add, pcmcia_delayed_add_device);
memset(&socket->pcmcia_state, 0, sizeof(u8));
socket->device_count = 0;
if (ret) {
dev_printk(KERN_ERR, dev, "PCMCIA registration failed\n");
pcmcia_put_socket(socket);
- return (ret);
+ return ret;
}
+ atomic_set(&socket->present, 0);
+
return 0;
}
if (!socket)
return;
- socket->pcmcia_state.dead = 1;
pccard_register_pcmcia(socket, NULL);
/* unregister any unbound devices */
mutex_lock(&socket->skt_mutex);
pcmcia_card_remove(socket, NULL);
+ release_cis_mem(socket);
mutex_unlock(&socket->skt_mutex);
+ sysfs_remove_bin_file(&dev->kobj, &pccard_cis_attr);
+
pcmcia_put_socket(socket);
return;
{
int ret;
- spin_lock_init(&pcmcia_dev_list_lock);
-
ret = bus_register(&pcmcia_bus_type);
if (ret < 0) {
printk(KERN_WARNING "pcmcia: bus_register error: %d\n", ret);
return 0;
}
-fs_initcall(init_pcmcia_bus); /* one level after subsys_initcall so that
+fs_initcall(init_pcmcia_bus); /* one level after subsys_initcall so that
* pcmcia_socket_class is already registered */
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff