Commit ba4d3dce authored by Adam Belay's avatar Adam Belay

PnP Card Serivice Revisions

This set of changes addresses the following issues with the existing card 
service implementation:

1.) Only one driver can be bound to a card.
2.) repetive code is required for pnp_request_card_device and other 
functions

This patch will make the card services usable by ALSA.
parent 85622b58
......@@ -30,15 +30,6 @@ config PNP_NAMES
If unsure, say Y.
config PNP_CARD
bool "Plug and Play card services"
depends on PNP
help
Select Y if you want the PnP Layer to manage cards. Cards are groups
of PnP devices. Some drivers, especially PnP sound card drivers, use
these cards. If you want to use the protocol ISAPNP you will need to
say Y here.
config PNP_DEBUG
bool "PnP Debug Messages"
depends on PNP
......@@ -51,7 +42,7 @@ comment "Protocols"
config ISAPNP
bool "ISA Plug and Play support (EXPERIMENTAL)"
depends on PNP && EXPERIMENTAL && PNP_CARD
depends on PNP && EXPERIMENTAL
help
Say Y here if you would like support for ISA Plug and Play devices.
Some information is in <file:Documentation/isapnp.txt>.
......
......@@ -2,9 +2,7 @@
# Makefile for the Linux Plug-and-Play Support.
#
pnp-card-$(CONFIG_PNP_CARD) = card.o
obj-y := core.o driver.o resource.o manager.o support.o interface.o quirks.o names.o system.o $(pnp-card-y)
obj-y := core.o card.o driver.o resource.o manager.o support.o interface.o quirks.o names.o system.o
obj-$(CONFIG_PNPBIOS) += pnpbios/
obj-$(CONFIG_ISAPNP) += isapnp/
......@@ -16,15 +16,14 @@
#endif
#include <linux/pnp.h>
#include <linux/init.h>
#include "base.h"
LIST_HEAD(pnp_cards);
static const struct pnp_card_id * match_card(struct pnpc_driver *drv, struct pnp_card *card)
static const struct pnp_card_id * match_card(struct pnp_card_driver * drv, struct pnp_card * card)
{
const struct pnp_card_id *drv_id = drv->id_table;
const struct pnp_card_id * drv_id = drv->id_table;
while (*drv_id->id){
if (compare_pnp_id(card->id,drv_id->id))
return drv_id;
......@@ -33,31 +32,26 @@ static const struct pnp_card_id * match_card(struct pnpc_driver *drv, struct pnp
return NULL;
}
static int card_bus_match(struct device *dev, struct device_driver *drv)
static void generic_card_remove_handler(struct pnp_dev * dev)
{
struct pnp_card * card = to_pnp_card(dev);
struct pnpc_driver * pnp_drv = to_pnpc_driver(drv);
if (match_card(pnp_drv, card) == NULL)
return 0;
return 1;
struct pnp_card_driver * drv = to_pnp_card_driver(dev->driver);
if (!dev->card || !drv)
return;
if (drv->remove)
drv->remove(dev->card);
drv->link.remove = NULL;
}
struct bus_type pnpc_bus_type = {
.name = "pnp_card",
.match = card_bus_match,
};
/**
* pnpc_add_id - adds an EISA id to the specified card
* pnp_add_card_id - adds an EISA id to the specified card
* @id: pointer to a pnp_id structure
* @card: pointer to the desired card
*
*/
int pnpc_add_id(struct pnp_id *id, struct pnp_card *card)
int pnp_add_card_id(struct pnp_id *id, struct pnp_card * card)
{
struct pnp_id *ptr;
struct pnp_id * ptr;
if (!id)
return -EINVAL;
if (!card)
......@@ -73,7 +67,7 @@ int pnpc_add_id(struct pnp_id *id, struct pnp_card *card)
return 0;
}
static void pnpc_free_ids(struct pnp_card *card)
static void pnp_free_card_ids(struct pnp_card * card)
{
struct pnp_id * id;
struct pnp_id *next;
......@@ -87,50 +81,39 @@ static void pnpc_free_ids(struct pnp_card *card)
}
}
static void pnp_release_card(struct device *dmdev)
{
struct pnp_card * card = to_pnp_card(dmdev);
pnpc_free_ids(card);
kfree(card);
}
/**
* pnpc_add_card - adds a PnP card to the PnP Layer
* pnp_add_card - adds a PnP card to the PnP Layer
* @card: pointer to the card to add
*/
int pnpc_add_card(struct pnp_card *card)
int pnp_add_card(struct pnp_card * card)
{
int error = 0;
struct list_head * pos;
if (!card || !card->protocol)
return -EINVAL;
sprintf(card->dev.bus_id, "%02x:%02x", card->protocol->number, card->number);
INIT_LIST_HEAD(&card->rdevs);
card->dev.parent = &card->protocol->dev;
card->dev.bus = &pnpc_bus_type;
card->dev.release = &pnp_release_card;
card->status = PNP_READY;
error = device_register(&card->dev);
if (error == 0){
struct list_head *pos;
spin_lock(&pnp_lock);
list_add_tail(&card->global_list, &pnp_cards);
list_add_tail(&card->protocol_list, &card->protocol->cards);
spin_unlock(&pnp_lock);
/* we wait until now to add devices in order to ensure the drivers
* will be able to use all of the related devices on the card
* without waiting any unresonable length of time */
list_for_each(pos,&card->devices){
struct pnp_dev *dev = card_to_pnp_dev(pos);
__pnp_add_device(dev);
}
}
return error;
}
/**
* pnpc_remove_card - removes a PnP card from the PnP Layer
* pnp_remove_card - removes a PnP card from the PnP Layer
* @card: pointer to the card to remove
*/
void pnpc_remove_card(struct pnp_card *card)
void pnp_remove_card(struct pnp_card * card)
{
struct list_head *pos, *temp;
if (!card)
......@@ -142,22 +125,25 @@ void pnpc_remove_card(struct pnp_card *card)
spin_unlock(&pnp_lock);
list_for_each_safe(pos,temp,&card->devices){
struct pnp_dev *dev = card_to_pnp_dev(pos);
pnpc_remove_device(dev);
pnp_remove_card_device(dev);
}
pnp_free_card_ids(card);
kfree(card);
}
/**
* pnpc_add_device - adds a device to the specified card
* pnp_add_card_device - adds a device to the specified card
* @card: pointer to the card to add to
* @dev: pointer to the device to add
*/
int pnpc_add_device(struct pnp_card *card, struct pnp_dev *dev)
int pnp_add_card_device(struct pnp_card * card, struct pnp_dev * dev)
{
if (!dev || !dev->protocol || !card)
if (!card || !dev || !dev->protocol)
return -EINVAL;
dev->dev.parent = &card->dev;
sprintf(dev->dev.bus_id, "%02x:%02x.%02x", dev->protocol->number, card->number,dev->number);
dev->dev.parent = &dev->protocol->dev;
snprintf(dev->dev.bus_id, BUS_ID_SIZE, "%02x:%02x.%02x", dev->protocol->number,
card->number,dev->number);
spin_lock(&pnp_lock);
dev->card = card;
list_add_tail(&dev->card_list, &card->devices);
......@@ -166,12 +152,12 @@ int pnpc_add_device(struct pnp_card *card, struct pnp_dev *dev)
}
/**
* pnpc_remove_device- removes a device from the specified card
* pnp_remove_card_device- removes a device from the specified card
* @card: pointer to the card to remove from
* @dev: pointer to the device to remove
*/
void pnpc_remove_device(struct pnp_dev *dev)
void pnp_remove_card_device(struct pnp_dev * dev)
{
spin_lock(&pnp_lock);
dev->card = NULL;
......@@ -182,19 +168,17 @@ void pnpc_remove_device(struct pnp_dev *dev)
/**
* pnp_request_card_device - Searches for a PnP device under the specified card
* @drv: pointer to the driver requesting the card
* @card: pointer to the card to search under, cannot be NULL
* @id: pointer to a PnP ID structure that explains the rules for finding the device
* @from: Starting place to search from. If NULL it will start from the begining.
*
* Will activate the device
*/
struct pnp_dev * pnp_request_card_device(struct pnp_card *card, const char *id, struct pnp_dev *from)
struct pnp_dev * pnp_request_card_device(struct pnp_card_driver * drv, struct pnp_card *card, const char * id, struct pnp_dev * from)
{
struct list_head *pos;
struct pnp_dev *dev;
struct pnpc_driver *cdrv;
if (!card || !id)
struct list_head * pos;
struct pnp_dev * dev;
if (!card || !id || !drv)
goto done;
if (!from) {
pos = card->devices.next;
......@@ -214,133 +198,63 @@ struct pnp_dev * pnp_request_card_device(struct pnp_card *card, const char *id,
return NULL;
found:
if (pnp_device_attach(dev) < 0)
return NULL;
cdrv = to_pnpc_driver(card->dev.driver);
if (dev->active == 0) {
if (!(cdrv->flags & PNPC_DRIVER_DO_NOT_ACTIVATE)) {
if(pnp_activate_dev(dev)<0) {
pnp_device_detach(dev);
down_write(&dev->dev.bus->subsys.rwsem);
dev->dev.driver = &drv->link.driver;
if (drv->link.driver.probe) {
if (drv->link.driver.probe(&dev->dev)) {
dev->dev.driver = NULL;
return NULL;
}
}
} else {
if ((cdrv->flags & PNPC_DRIVER_DO_NOT_ACTIVATE))
pnp_disable_dev(dev);
}
spin_lock(&pnp_lock);
list_add_tail(&dev->rdev_list, &card->rdevs);
spin_unlock(&pnp_lock);
device_bind_driver(&dev->dev);
up_write(&dev->dev.bus->subsys.rwsem);
return dev;
}
/**
* pnp_release_card_device - call this when the driver no longer needs the device
* @dev: pointer to the PnP device stucture
*
* Will disable the device
*/
void pnp_release_card_device(struct pnp_dev *dev)
{
spin_lock(&pnp_lock);
list_del(&dev->rdev_list);
spin_unlock(&pnp_lock);
pnp_device_detach(dev);
}
static void pnpc_recover_devices(struct pnp_card *card)
void pnp_release_card_device(struct pnp_dev * dev)
{
struct list_head *pos, *temp;
list_for_each_safe(pos,temp,&card->rdevs){
struct pnp_dev *dev = list_entry(pos, struct pnp_dev, rdev_list);
pnp_release_card_device(dev);
}
}
int pnpc_attach(struct pnp_card *pnp_card)
{
spin_lock(&pnp_lock);
if(pnp_card->status != PNP_READY){
spin_unlock(&pnp_lock);
return -EBUSY;
}
pnp_card->status = PNP_ATTACHED;
spin_unlock(&pnp_lock);
return 0;
}
void pnpc_detach(struct pnp_card *pnp_card)
{
spin_lock(&pnp_lock);
if (pnp_card->status == PNP_ATTACHED)
pnp_card->status = PNP_READY;
spin_unlock(&pnp_lock);
pnpc_recover_devices(pnp_card);
}
static int pnpc_card_probe(struct device *dev)
{
int error = 0;
struct pnpc_driver *drv = to_pnpc_driver(dev->driver);
struct pnp_card *card = to_pnp_card(dev);
const struct pnp_card_id *card_id = NULL;
pnp_dbg("pnp: match found with the PnP card '%s' and the driver '%s'", dev->bus_id,drv->name);
error = pnpc_attach(card);
if (error < 0)
return error;
if (drv->probe) {
card_id = match_card(drv, card);
if (card_id != NULL)
error = drv->probe(card, card_id);
if (error >= 0){
card->driver = drv;
error = 0;
} else
pnpc_detach(card);
}
return error;
}
static int pnpc_card_remove(struct device *dev)
{
struct pnp_card * card = to_pnp_card(dev);
struct pnpc_driver * drv = card->driver;
if (drv) {
if (drv->remove)
drv->remove(card);
card->driver = NULL;
}
pnpc_detach(card);
return 0;
struct pnp_card_driver * drv = to_pnp_card_driver(to_pnp_driver(dev->dev.driver));
if (!drv)
return;
down_write(&dev->dev.bus->subsys.rwsem);
drv->link.remove = NULL;
device_release_driver(&dev->dev);
drv->link.remove = &generic_card_remove_handler;
up_write(&dev->dev.bus->subsys.rwsem);
}
/**
* pnpc_register_driver - registers a PnP card driver with the PnP Layer
* @cdrv: pointer to the driver to register
* pnp_register_card_driver - registers a PnP card driver with the PnP Layer
* @drv: pointer to the driver to register
*/
int pnpc_register_driver(struct pnpc_driver * drv)
int pnp_register_card_driver(struct pnp_card_driver * drv)
{
int count;
struct list_head *pos;
drv->driver.name = drv->name;
drv->driver.bus = &pnpc_bus_type;
drv->driver.probe = pnpc_card_probe;
drv->driver.remove = pnpc_card_remove;
int count = 0;
struct list_head *pos, *temp;
pnp_dbg("the card driver '%s' has been registered", drv->name);
drv->link.name = drv->name;
drv->link.id_table = NULL; /* this will disable auto matching */
drv->link.flags = drv->flags;
drv->link.probe = NULL;
drv->link.remove = &generic_card_remove_handler;
count = driver_register(&drv->driver);
pnp_register_driver(&drv->link);
/* get the number of initial matches */
if (count >= 0){
count = 0;
list_for_each(pos,&drv->driver.devices){
list_for_each_safe(pos,temp,&pnp_cards){
struct pnp_card *card = list_entry(pos, struct pnp_card, global_list);
const struct pnp_card_id *id = match_card(drv,card);
if (id) {
if (drv->probe) {
if (drv->probe(card, id)>=0)
count++;
} else
count++;
}
}
......@@ -348,34 +262,23 @@ int pnpc_register_driver(struct pnpc_driver * drv)
}
/**
* pnpc_unregister_driver - unregisters a PnP card driver from the PnP Layer
* @cdrv: pointer to the driver to unregister
*
* Automatically disables requested devices
* pnp_unregister_card_driver - unregisters a PnP card driver from the PnP Layer
* @drv: pointer to the driver to unregister
*/
void pnpc_unregister_driver(struct pnpc_driver *drv)
void pnp_unregister_card_driver(struct pnp_card_driver * drv)
{
driver_unregister(&drv->driver);
pnp_dbg("the card driver '%s' has been unregistered", drv->name);
}
pnp_unregister_driver(&drv->link);
static int __init pnp_card_init(void)
{
printk(KERN_INFO "pnp: Enabling Plug and Play Card Services.\n");
return bus_register(&pnpc_bus_type);
pnp_dbg("the card driver '%s' has been unregistered", drv->name);
}
subsys_initcall(pnp_card_init);
EXPORT_SYMBOL(pnpc_add_card);
EXPORT_SYMBOL(pnpc_remove_card);
EXPORT_SYMBOL(pnpc_add_device);
EXPORT_SYMBOL(pnpc_remove_device);
EXPORT_SYMBOL(pnp_add_card);
EXPORT_SYMBOL(pnp_remove_card);
EXPORT_SYMBOL(pnp_add_card_device);
EXPORT_SYMBOL(pnp_remove_card_device);
EXPORT_SYMBOL(pnp_add_card_id);
EXPORT_SYMBOL(pnp_request_card_device);
EXPORT_SYMBOL(pnp_release_card_device);
EXPORT_SYMBOL(pnpc_register_driver);
EXPORT_SYMBOL(pnpc_unregister_driver);
EXPORT_SYMBOL(pnpc_add_id);
EXPORT_SYMBOL(pnpc_attach);
EXPORT_SYMBOL(pnpc_detach);
EXPORT_SYMBOL(pnp_register_card_driver);
EXPORT_SYMBOL(pnp_unregister_card_driver);
......@@ -53,12 +53,11 @@ int compare_pnp_id(struct pnp_id *pos, const char *id)
static const struct pnp_device_id * match_device(struct pnp_driver *drv, struct pnp_dev *dev)
{
const struct pnp_device_id *drv_id = drv->id_table;
if (!drv)
if (!drv_id)
return NULL;
if (!dev)
return NULL;
while (*drv_id->id){
if (compare_pnp_id(dev->id,drv_id->id))
while (*drv_id->id) {
if (compare_pnp_id(dev->id, drv_id->id))
return drv_id;
drv_id++;
}
......@@ -102,14 +101,18 @@ static int pnp_device_probe(struct device *dev)
return error;
if (pnp_dev->active == 0) {
if (!(pnp_drv->flags & PNP_DRIVER_DO_NOT_ACTIVATE)) {
if (!(pnp_drv->flags & PNP_DRIVER_RES_DO_NOT_CHANGE)) {
error = pnp_activate_dev(pnp_dev);
if (error < 0)
return error;
}
} else if (pnp_drv->flags & PNP_DRIVER_RES_DISABLE) {
error = pnp_disable_dev(pnp_dev);
if (error < 0)
return error;
}
error = 0;
if (pnp_drv->probe && pnp_dev->active) {
if (pnp_drv->probe) {
dev_id = match_device(pnp_drv, pnp_dev);
if (dev_id != NULL)
error = pnp_drv->probe(pnp_dev, dev_id);
......@@ -117,8 +120,7 @@ static int pnp_device_probe(struct device *dev)
if (error >= 0){
pnp_dev->driver = pnp_drv;
error = 0;
}
else
} else
goto fail;
return error;
......
......@@ -647,7 +647,7 @@ static int __init isapnp_create_device(struct pnp_card *card,
return 1;
if (pnp_build_resource(dev, 0) == NULL)
return 1;
pnpc_add_device(card,dev);
pnp_add_card_device(card,dev);
while (1) {
if (isapnp_read_tag(&type, &size)<0)
return 1;
......@@ -659,7 +659,7 @@ static int __init isapnp_create_device(struct pnp_card *card,
if ((dev = isapnp_parse_device(card, size, number++)) == NULL)
return 1;
pnp_build_resource(dev,0);
pnpc_add_device(card,dev);
pnp_add_card_device(card,dev);
size = 0;
skip = 0;
} else {
......@@ -852,7 +852,7 @@ static void isapnp_parse_card_id(struct pnp_card * card, unsigned short vendor,
device & 0x0f,
(device >> 12) & 0x0f,
(device >> 8) & 0x0f);
pnpc_add_id(id,card);
pnp_add_card_id(id,card);
}
......@@ -962,7 +962,7 @@ static int __init isapnp_build_device_list(void)
isapnp_parse_current_resources(dev, &dev->res);
}
pnpc_add_card(card);
pnp_add_card(card);
}
isapnp_wait();
return 0;
......
......@@ -93,7 +93,7 @@ static int system_pnp_probe(struct pnp_dev * dev, const struct pnp_device_id *de
static struct pnp_driver system_pnp_driver = {
.name = "system",
.flags = PNP_DRIVER_DO_NOT_ACTIVATE,
.flags = PNP_DRIVER_RES_DO_NOT_CHANGE,
.id_table = pnp_dev_table,
.probe = system_pnp_probe,
.remove = NULL,
......
......@@ -138,11 +138,9 @@ struct pnp_card {
struct list_head global_list; /* node in global list of cards */
struct list_head protocol_list; /* node in protocol's list of cards */
struct list_head devices; /* devices attached to the card */
struct list_head rdevs; /* a list of devices requested by the card driver */
int status;
struct pnp_protocol * protocol;
struct pnpc_driver * driver;
struct pnp_id * id; /* contains supported EISA IDs*/
void * protocol_data; /* Used to store protocol specific data */
......@@ -161,22 +159,22 @@ struct pnp_card {
(card) != global_to_pnp_card(&pnp_cards); \
(card) = global_to_pnp_card((card)->global_list.next))
static inline void *pnpc_get_drvdata (struct pnp_card *pcard)
static inline void *pnp_get_card_drvdata (struct pnp_card *pcard)
{
return dev_get_drvdata(&pcard->dev);
}
static inline void pnpc_set_drvdata (struct pnp_card *pcard, void *data)
static inline void pnp_set_card_drvdata (struct pnp_card *pcard, void *data)
{
dev_set_drvdata(&pcard->dev, data);
}
static inline void *pnpc_get_protodata (struct pnp_card *pcard)
static inline void *pnp_get_card_protodata (struct pnp_card *pcard)
{
return pcard->protocol_data;
}
static inline void pnpc_set_protodata (struct pnp_card *pcard, void *data)
static inline void pnp_set_card_protodata (struct pnp_card *pcard, void *data)
{
pcard->protocol_data = data;
}
......@@ -299,11 +297,8 @@ struct pnp_card_id {
} devs[PNP_MAX_DEVICES]; /* logical devices */
};
#define PNP_DRIVER_DO_NOT_ACTIVATE (1<<0)
struct pnp_driver {
struct list_head node;
char *name;
char * name;
const struct pnp_device_id *id_table;
unsigned int flags;
int (*probe) (struct pnp_dev *dev, const struct pnp_device_id *dev_id);
......@@ -311,21 +306,22 @@ struct pnp_driver {
struct device_driver driver;
};
#define to_pnp_driver(drv) container_of(drv,struct pnp_driver, driver)
#define PNPC_DRIVER_DO_NOT_ACTIVATE (1<<0)
#define to_pnp_driver(drv) container_of(drv, struct pnp_driver, driver)
struct pnpc_driver {
struct list_head node;
char *name;
struct pnp_card_driver {
char * name;
const struct pnp_card_id *id_table;
unsigned int flags;
int (*probe) (struct pnp_card *card, const struct pnp_card_id *card_id);
void (*remove) (struct pnp_card *card);
struct device_driver driver;
struct pnp_driver link;
};
#define to_pnpc_driver(drv) container_of(drv,struct pnpc_driver, driver)
#define to_pnp_card_driver(drv) container_of(drv, struct pnp_card_driver, link)
/* pnp driver flags */
#define PNP_DRIVER_RES_DO_NOT_CHANGE 0x0001 /* do not change the state of the device */
#define PNP_DRIVER_RES_DISABLE 0x0003 /* ensure the device is disabled */
/*
......@@ -366,9 +362,21 @@ int pnp_register_protocol(struct pnp_protocol *protocol);
void pnp_unregister_protocol(struct pnp_protocol *protocol);
int pnp_add_device(struct pnp_dev *dev);
void pnp_remove_device(struct pnp_dev *dev);
extern struct list_head pnp_global;
int pnp_device_attach(struct pnp_dev *pnp_dev);
void pnp_device_detach(struct pnp_dev *pnp_dev);
extern struct list_head pnp_global;
/* card */
int pnp_add_card(struct pnp_card *card);
void pnp_remove_card(struct pnp_card *card);
int pnp_add_card_device(struct pnp_card *card, struct pnp_dev *dev);
void pnp_remove_card_device(struct pnp_dev *dev);
int pnp_add_card_id(struct pnp_id *id, struct pnp_card *card);
struct pnp_dev * pnp_request_card_device(struct pnp_card_driver * drv, struct pnp_card *card, const char * id, struct pnp_dev * from);
void pnp_release_card_device(struct pnp_dev * dev);
int pnp_register_card_driver(struct pnp_card_driver * drv);
void pnp_unregister_card_driver(struct pnp_card_driver * drv);
extern struct list_head pnp_cards;
/* resource */
struct pnp_resources * pnp_build_resource(struct pnp_dev *dev, int dependent);
......@@ -413,6 +421,17 @@ static inline void pnp_remove_device(struct pnp_dev *dev) { }
static inline int pnp_device_attach(struct pnp_dev *pnp_dev) { return -ENODEV; }
static inline void pnp_device_detach(struct pnp_dev *pnp_dev) { ; }
/* card */
static inline int pnp_add_card(struct pnp_card *card) { return -ENODEV; }
static inline void pnp_remove_card(struct pnp_card *card) { ; }
static inline int pnp_add_card_device(struct pnp_card *card, struct pnp_dev *dev) { return -ENODEV; }
static inline void pnp_remove_card_device(struct pnp_dev *dev) { ; }
static inline int pnp_add_card_id(struct pnp_id *id, struct pnp_card *card) { return -ENODEV; }
static inline struct pnp_dev * pnp_request_card_device(struct pnp_card_driver * drv, struct pnp_card *card, const char * id, struct pnp_dev * from) { return -ENODEV; }
static inline void pnp_release_card_device(struct pnp_dev * dev) { ; }
static inline int pnp_register_card_driver(struct pnp_card_driver * drv) { return -ENODEV; }
static inline void pnp_unregister_card_driver(struct pnp_card_driver * drv) { ; }
/* resource */
static inline struct pnp_resources * pnp_build_resource(struct pnp_dev *dev, int dependent) { return NULL; }
static inline struct pnp_resources * pnp_find_resources(struct pnp_dev *dev, int depnum) { return NULL; }
......@@ -446,37 +465,6 @@ static inline unsigned char * pnp_write_resources(unsigned char * p, unsigned ch
#endif /* CONFIG_PNP */
#if defined(CONFIG_PNP_CARD)
/* card */
int pnpc_add_card(struct pnp_card *card);
void pnpc_remove_card(struct pnp_card *card);
int pnpc_add_device(struct pnp_card *card, struct pnp_dev *dev);
void pnpc_remove_device(struct pnp_dev *dev);
struct pnp_dev * pnp_request_card_device(struct pnp_card *card, const char *id, struct pnp_dev *from);
void pnp_release_card_device(struct pnp_dev *dev);
int pnpc_register_driver(struct pnpc_driver * drv);
void pnpc_unregister_driver(struct pnpc_driver *drv);
int pnpc_add_id(struct pnp_id *id, struct pnp_card *card);
extern struct list_head pnp_cards;
int pnpc_attach(struct pnp_card *card);
void pnpc_detach(struct pnp_card *card);
#else
/* card */
static inline int pnpc_add_card(struct pnp_card *card) { return -ENODEV; }
static inline void pnpc_remove_card(struct pnp_card *card) { ; }
static inline int pnpc_add_device(struct pnp_card *card, struct pnp_dev *dev) { return -ENODEV; }
static inline void pnpc_remove_device(struct pnp_dev *dev) { ; }
static inline struct pnp_dev * pnp_request_card_device(struct pnp_card *card, const char *id, struct pnp_dev *from) { return NULL; }
static inline void pnp_release_card_device(struct pnp_dev *dev) { ; }
static inline int pnpc_register_driver(struct pnpc_driver *drv) { return -ENODEV; }
static inline void pnpc_unregister_driver(struct pnpc_driver *drv) { ; }
static inline int pnpc_add_id(struct pnp_id *id, struct pnp_card *card) { return -ENODEV; }
#endif /* CONFIG_PNP_CARD */
#define pnp_err(format, arg...) printk(KERN_ERR "pnp: " format "\n" , ## arg)
#define pnp_info(format, arg...) printk(KERN_INFO "pnp: " format "\n" , ## arg)
#define pnp_warn(format, arg...) printk(KERN_WARNING "pnp: " format "\n" , ## arg)
......
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