[PATCH] pcmcia: unify attach, EVENT_CARD_INSERTION handlers into one probe callback
Unify the EVENT_CARD_INSERTION and "attach" callbacks to one unified
probe() callback. As all in-kernel drivers are changed to this new
callback, there will be no temporary backwards-compatibility. Inside a
probe() function, each driver _must_ set struct pcmcia_device
*p_dev->instance and instance->handle correctly.
With these patches, the basic driver interface for 16-bit PCMCIA drivers
now has the classic four callbacks known also from other buses:
int (*probe) (struct pcmcia_device *dev);
void (*remove) (struct pcmcia_device *dev);
int (*suspend) (struct pcmcia_device *dev);
int (*resume) (struct pcmcia_device *dev);
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
diff --git a/drivers/isdn/hisax/sedlbauer_cs.c b/drivers/isdn/hisax/sedlbauer_cs.c
index 814b32a..6f5213a 100644
--- a/drivers/isdn/hisax/sedlbauer_cs.c
+++ b/drivers/isdn/hisax/sedlbauer_cs.c
@@ -97,8 +97,6 @@
static void sedlbauer_config(dev_link_t *link);
static void sedlbauer_release(dev_link_t *link);
-static int sedlbauer_event(event_t event, int priority,
- event_callback_args_t *args);
/*
The attach() and detach() entry points are used to create and destroy
@@ -106,7 +104,6 @@
needed to manage one actual PCMCIA card.
*/
-static dev_link_t *sedlbauer_attach(void);
static void sedlbauer_detach(struct pcmcia_device *p_dev);
/*
@@ -117,24 +114,6 @@
*/
/*
- 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 = "sedlbauer_cs";
-
-/*
- A linked list of "instances" of the sedlbauer 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.
-*/
-
-/*
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
@@ -169,18 +148,16 @@
======================================================================*/
-static dev_link_t *sedlbauer_attach(void)
+static int sedlbauer_attach(struct pcmcia_device *p_dev)
{
local_info_t *local;
dev_link_t *link;
- client_reg_t client_reg;
- int ret;
DEBUG(0, "sedlbauer_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;
@@ -210,19 +187,13 @@
link->conf.Vcc = 50;
link->conf.IntType = INT_MEMORY_AND_IO;
- /* Register with Card Services */
- link->next = NULL;
- 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);
- sedlbauer_detach(link->handle);
- return NULL;
- }
+ link->handle = p_dev;
+ p_dev->instance = link;
- return link;
+ link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
+ sedlbauer_config(link);
+
+ return 0;
} /* sedlbauer_attach */
/*======================================================================
@@ -541,33 +512,6 @@
return 0;
}
-/*======================================================================
-
- The card status event handler. Mostly, this schedules other
- stuff to run after an event is received.
-
- When a CARD_REMOVAL event is received, we immediately set a
- private 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 sedlbauer_event(event_t event, int priority,
- event_callback_args_t *args)
-{
- dev_link_t *link = args->client_data;
-
- DEBUG(1, "sedlbauer_event(0x%06x)\n", event);
-
- switch (event) {
- case CS_EVENT_CARD_INSERTION:
- link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
- sedlbauer_config(link);
- break;
- }
- return 0;
-} /* sedlbauer_event */
static struct pcmcia_device_id sedlbauer_ids[] = {
PCMCIA_DEVICE_PROD_ID123("SEDLBAUER", "speed star II", "V 3.1", 0x81fb79f5, 0xf3612e1d, 0x6b95c78a),
@@ -586,8 +530,7 @@
.drv = {
.name = "sedlbauer_cs",
},
- .attach = sedlbauer_attach,
- .event = sedlbauer_event,
+ .probe = sedlbauer_attach,
.remove = sedlbauer_detach,
.id_table = sedlbauer_ids,
.suspend = sedlbauer_suspend,