static void avmcs_config(dev_link_t *link);
static void avmcs_release(dev_link_t *link);
-static int avmcs_event(event_t event, int priority,
- event_callback_args_t *args);
/*
The attach() and detach() entry points are used to create and destroy
needed to manage one actual PCMCIA card.
*/
-static dev_link_t *avmcs_attach(void);
-static void avmcs_detach(dev_link_t *);
-
-/*
- The dev_info variable is the "key" that is used to match up this
- device driver with appropriate cards, through the card configuration
- database.
-*/
-
-static dev_info_t dev_info = "avm_cs";
+static void avmcs_detach(struct pcmcia_device *p_dev);
/*
A linked list of "instances" of the skeleton device. Each actual
device numbers are used to derive the corresponding array index.
*/
-static dev_link_t *dev_list = NULL;
-
/*
- A dev_link_t structure has fields for most things that are needed
- to keep track of a socket, but there will usually be some device
- specific information that also needs to be kept track of. The
- 'priv' pointer in a dev_link_t structure can be used to point to
- a device-specific private data structure, like this.
-
A driver needs to provide a dev_node_t structure for each device
on a card. In some cases, there is only one device per card (for
example, ethernet cards, modems). In other cases, there may be
======================================================================*/
-static dev_link_t *avmcs_attach(void)
+static int avmcs_attach(struct pcmcia_device *p_dev)
{
- client_reg_t client_reg;
dev_link_t *link;
local_info_t *local;
- int ret;
-
+
/* Initialize the dev_link_t structure */
link = kmalloc(sizeof(struct dev_link_t), GFP_KERNEL);
if (!link)
goto err_kfree;
memset(local, 0, sizeof(local_info_t));
link->priv = local;
-
- /* Register with Card Services */
- link->next = dev_list;
- dev_list = link;
- client_reg.dev_info = &dev_info;
- client_reg.Version = 0x0210;
- client_reg.event_callback_args.client_data = link;
- ret = pcmcia_register_client(&link->handle, &client_reg);
- if (ret != 0) {
- cs_error(link->handle, RegisterClient, ret);
- avmcs_detach(link);
- goto err;
- }
- return link;
+
+ link->handle = p_dev;
+ p_dev->instance = link;
+
+ link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
+ avmcs_config(link);
+
+ return 0;
err_kfree:
kfree(link);
err:
- return NULL;
+ return -EINVAL;
} /* avmcs_attach */
/*======================================================================
======================================================================*/
-static void avmcs_detach(dev_link_t *link)
+static void avmcs_detach(struct pcmcia_device *p_dev)
{
- dev_link_t **linkp;
+ dev_link_t *link = dev_to_instance(p_dev);
- /* Locate device structure */
- for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
- if (*linkp == link) break;
- if (*linkp == NULL)
- return;
-
- /*
- If the device is currently configured and active, we won't
- actually delete it yet. Instead, it is marked so that when
- the release() function is called, that will trigger a proper
- detach().
- */
- if (link->state & DEV_CONFIG) {
- link->state |= DEV_STALE_LINK;
- return;
- }
+ if (link->state & DEV_CONFIG)
+ avmcs_release(link);
- /* Break the link with Card Services */
- if (link->handle)
- pcmcia_deregister_client(link->handle);
-
- /* Unlink device structure, free pieces */
- *linkp = link->next;
kfree(link->priv);
kfree(link);
} /* avmcs_detach */
cs_error(link->handle, RequestIO, i);
break;
}
-
+
/*
* allocate an interrupt line
*/
i = pcmcia_request_irq(link->handle, &link->irq);
if (i != CS_SUCCESS) {
cs_error(link->handle, RequestIRQ, i);
- pcmcia_release_io(link->handle, &link->io);
+ /* undo */
+ pcmcia_disable_device(link->handle);
break;
}
-
+
/*
* configure the PCMCIA socket
*/
i = pcmcia_request_configuration(link->handle, &link->conf);
if (i != CS_SUCCESS) {
cs_error(link->handle, RequestConfiguration, i);
- pcmcia_release_io(link->handle, &link->io);
- pcmcia_release_irq(link->handle, &link->irq);
+ pcmcia_disable_device(link->handle);
break;
}
static void avmcs_release(dev_link_t *link)
{
- b1pcmcia_delcard(link->io.BasePort1, link->irq.AssignedIRQ);
-
- /* Unlink the device chain */
- link->dev = NULL;
-
- /* Don't bother checking to see if these succeed or not */
- pcmcia_release_configuration(link->handle);
- pcmcia_release_io(link->handle, &link->io);
- pcmcia_release_irq(link->handle, &link->irq);
- link->state &= ~DEV_CONFIG;
-
- if (link->state & DEV_STALE_LINK)
- avmcs_detach(link);
-
+ b1pcmcia_delcard(link->io.BasePort1, link->irq.AssignedIRQ);
+ pcmcia_disable_device(link->handle);
} /* avmcs_release */
-/*======================================================================
-
- The card status event handler. Mostly, this schedules other
- stuff to run after an event is received. A CARD_REMOVAL event
- also sets some flags to discourage the net drivers from trying
- to talk to the card any more.
-
- When a CARD_REMOVAL event is received, we immediately set a flag
- to block future accesses to this device. All the functions that
- actually access the device should check this flag to make sure
- the card is still present.
-
-======================================================================*/
-
-static int avmcs_event(event_t event, int priority,
- event_callback_args_t *args)
-{
- dev_link_t *link = args->client_data;
-
- switch (event) {
- case CS_EVENT_CARD_REMOVAL:
- link->state &= ~DEV_PRESENT;
- if (link->state & DEV_CONFIG)
- avmcs_release(link);
- break;
- case CS_EVENT_CARD_INSERTION:
- link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
- avmcs_config(link);
- break;
- case CS_EVENT_PM_SUSPEND:
- link->state |= DEV_SUSPEND;
- /* Fall through... */
- case CS_EVENT_RESET_PHYSICAL:
- if (link->state & DEV_CONFIG)
- pcmcia_release_configuration(link->handle);
- break;
- case CS_EVENT_PM_RESUME:
- link->state &= ~DEV_SUSPEND;
- /* Fall through... */
- case CS_EVENT_CARD_RESET:
- if (link->state & DEV_CONFIG)
- pcmcia_request_configuration(link->handle, &link->conf);
- break;
- }
- return 0;
-} /* avmcs_event */
static struct pcmcia_device_id avmcs_ids[] = {
PCMCIA_DEVICE_PROD_ID12("AVM", "ISDN-Controller B1", 0x95d42008, 0x845dc335),
.drv = {
.name = "avm_cs",
},
- .attach = avmcs_attach,
- .event = avmcs_event,
- .detach = avmcs_detach,
+ .probe = avmcs_attach,
+ .remove = avmcs_detach,
.id_table = avmcs_ids,
};
static void __exit avmcs_exit(void)
{
pcmcia_unregister_driver(&avmcs_driver);
- BUG_ON(dev_list != NULL);
}
module_init(avmcs_init);
projects / linux-2.6-block.git / blobdiff