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path: root/drivers/isdn/hisax/elsa_cs.c
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Diffstat (limited to 'drivers/isdn/hisax/elsa_cs.c')
-rw-r--r--drivers/isdn/hisax/elsa_cs.c158
1 files changed, 37 insertions, 121 deletions
diff --git a/drivers/isdn/hisax/elsa_cs.c b/drivers/isdn/hisax/elsa_cs.c
index 6fc6868de0b..062fb8f0739 100644
--- a/drivers/isdn/hisax/elsa_cs.c
+++ b/drivers/isdn/hisax/elsa_cs.c
@@ -96,8 +96,6 @@ module_param(protocol, int, 0);
static void elsa_cs_config(dev_link_t *link);
static void elsa_cs_release(dev_link_t *link);
-static int elsa_cs_event(event_t event, int priority,
- event_callback_args_t *args);
/*
The attach() and detach() entry points are used to create and destroy
@@ -105,39 +103,9 @@ static int elsa_cs_event(event_t event, int priority,
needed to manage one actual PCMCIA card.
*/
-static dev_link_t *elsa_cs_attach(void);
-static void elsa_cs_detach(dev_link_t *);
+static void elsa_cs_detach(struct pcmcia_device *p_dev);
/*
- 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 = "elsa_cs";
-
-/*
- A linked list of "instances" of the elsa_cs device. Each actual
- PCMCIA card corresponds to one device instance, and is described
- by one dev_link_t structure (defined in ds.h).
-
- You may not want to use a linked list for this -- for example, the
- memory card driver uses an array of dev_link_t pointers, where minor
- 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.
-
- To simplify the data structure handling, we actually include the
- dev_link_t structure in the device's private data structure.
-
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
@@ -171,18 +139,16 @@ typedef struct local_info_t {
======================================================================*/
-static dev_link_t *elsa_cs_attach(void)
+static int elsa_cs_attach(struct pcmcia_device *p_dev)
{
- client_reg_t client_reg;
dev_link_t *link;
local_info_t *local;
- int ret;
DEBUG(0, "elsa_cs_attach()\n");
/* Allocate space for private device-specific data */
local = kmalloc(sizeof(local_info_t), GFP_KERNEL);
- if (!local) return NULL;
+ if (!local) return -ENOMEM;
memset(local, 0, sizeof(local_info_t));
local->cardnr = -1;
link = &local->link; link->priv = local;
@@ -207,20 +173,13 @@ static dev_link_t *elsa_cs_attach(void)
link->conf.Vcc = 50;
link->conf.IntType = INT_MEMORY_AND_IO;
- /* 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 != CS_SUCCESS) {
- cs_error(link->handle, RegisterClient, ret);
- elsa_cs_detach(link);
- return NULL;
- }
+ link->handle = p_dev;
+ p_dev->instance = link;
- return link;
+ link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
+ elsa_cs_config(link);
+
+ return 0;
} /* elsa_cs_attach */
/*======================================================================
@@ -232,32 +191,18 @@ static dev_link_t *elsa_cs_attach(void)
======================================================================*/
-static void elsa_cs_detach(dev_link_t *link)
+static void elsa_cs_detach(struct pcmcia_device *p_dev)
{
- dev_link_t **linkp;
+ dev_link_t *link = dev_to_instance(p_dev);
local_info_t *info = link->priv;
- int ret;
DEBUG(0, "elsa_cs_detach(0x%p)\n", link);
- /* Locate device structure */
- for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
- if (*linkp == link) break;
- if (*linkp == NULL)
- return;
-
- if (link->state & DEV_CONFIG)
- elsa_cs_release(link);
-
- /* Break the link with Card Services */
- if (link->handle) {
- ret = pcmcia_deregister_client(link->handle);
- if (ret != CS_SUCCESS)
- cs_error(link->handle, DeregisterClient, ret);
+ if (link->state & DEV_CONFIG) {
+ info->busy = 1;
+ elsa_cs_release(link);
}
- /* Unlink device structure and free it */
- *linkp = link->next;
kfree(info);
} /* elsa_cs_detach */
@@ -447,60 +392,31 @@ static void elsa_cs_release(dev_link_t *link)
link->state &= ~DEV_CONFIG;
} /* elsa_cs_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.
+static int elsa_suspend(struct pcmcia_device *p_dev)
+{
+ dev_link_t *link = dev_to_instance(p_dev);
+ local_info_t *dev = link->priv;
- 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.
+ link->state |= DEV_SUSPEND;
+ dev->busy = 1;
+ if (link->state & DEV_CONFIG)
+ pcmcia_release_configuration(link->handle);
-======================================================================*/
+ return 0;
+}
-static int elsa_cs_event(event_t event, int priority,
- event_callback_args_t *args)
+static int elsa_resume(struct pcmcia_device *p_dev)
{
- dev_link_t *link = args->client_data;
- local_info_t *dev = link->priv;
-
- DEBUG(1, "elsa_cs_event(%d)\n", event);
+ dev_link_t *link = dev_to_instance(p_dev);
+ local_info_t *dev = link->priv;
- switch (event) {
- case CS_EVENT_CARD_REMOVAL:
- link->state &= ~DEV_PRESENT;
- if (link->state & DEV_CONFIG) {
- ((local_info_t*)link->priv)->busy = 1;
- elsa_cs_release(link);
- }
- break;
- case CS_EVENT_CARD_INSERTION:
- link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
- elsa_cs_config(link);
- break;
- case CS_EVENT_PM_SUSPEND:
- link->state |= DEV_SUSPEND;
- /* Fall through... */
- case CS_EVENT_RESET_PHYSICAL:
- /* Mark the device as stopped, to block IO until later */
- dev->busy = 1;
- 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);
+ link->state &= ~DEV_SUSPEND;
+ if (link->state & DEV_CONFIG)
+ pcmcia_request_configuration(link->handle, &link->conf);
dev->busy = 0;
- break;
- }
- return 0;
-} /* elsa_cs_event */
+
+ return 0;
+}
static struct pcmcia_device_id elsa_ids[] = {
PCMCIA_DEVICE_PROD_ID12("ELSA AG (Aachen, Germany)", "MicroLink ISDN/MC ", 0x983de2c4, 0x333ba257),
@@ -514,10 +430,11 @@ static struct pcmcia_driver elsa_cs_driver = {
.drv = {
.name = "elsa_cs",
},
- .attach = elsa_cs_attach,
- .event = elsa_cs_event,
- .detach = elsa_cs_detach,
+ .probe = elsa_cs_attach,
+ .remove = elsa_cs_detach,
.id_table = elsa_ids,
+ .suspend = elsa_suspend,
+ .resume = elsa_resume,
};
static int __init init_elsa_cs(void)
@@ -528,7 +445,6 @@ static int __init init_elsa_cs(void)
static void __exit exit_elsa_cs(void)
{
pcmcia_unregister_driver(&elsa_cs_driver);
- BUG_ON(dev_list != NULL);
}
module_init(init_elsa_cs);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-12 05:40:28 +0000