[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>

1 files changed, 9 insertions, 48 deletions

diff --git a/drivers/net/pcmcia/nmclan_cs.c b/drivers/net/pcmcia/nmclan_cs.c
index 0c9cb9f49a81..4a232254a497 100644
--- a/drivers/net/pcmcia/nmclan_cs.c
+++ b/drivers/net/pcmcia/nmclan_cs.c
@@ -388,8 +388,6 @@ static char *version =
 DRV_NAME " " DRV_VERSION " (Roger C. Pao)";
 #endif
 
-static dev_info_t dev_info="nmclan_cs";
-
 static char *if_names[]={
     "Auto", "10baseT", "BNC",
 };
@@ -421,8 +419,6 @@ Function Prototypes
 
 static void nmclan_config(dev_link_t *link);
 static void nmclan_release(dev_link_t *link);
-static int nmclan_event(event_t event, int priority,
-			event_callback_args_t *args);
 
 static void nmclan_reset(struct net_device *dev);
 static int mace_config(struct net_device *dev, struct ifmap *map);
@@ -438,7 +434,6 @@ static void set_multicast_list(struct net_device *dev);
 static struct ethtool_ops netdev_ethtool_ops;
 
 
-static dev_link_t *nmclan_attach(void);
 static void nmclan_detach(struct pcmcia_device *p_dev);
 
 /* ----------------------------------------------------------------------------
@@ -448,13 +443,11 @@ nmclan_attach
 	Services.
 ---------------------------------------------------------------------------- */
 
-static dev_link_t *nmclan_attach(void)
+static int nmclan_attach(struct pcmcia_device *p_dev)
 {
     mace_private *lp;
     dev_link_t *link;
     struct net_device *dev;
-    client_reg_t client_reg;
-    int ret;
 
     DEBUG(0, "nmclan_attach()\n");
     DEBUG(1, "%s\n", rcsid);
@@ -462,7 +455,7 @@ static dev_link_t *nmclan_attach(void)
     /* Create new ethernet device */
     dev = alloc_etherdev(sizeof(mace_private));
     if (!dev)
-	return NULL;
+	    return -ENOMEM;
     lp = netdev_priv(dev);
     link = &lp->link;
     link->priv = dev;
@@ -496,19 +489,13 @@ static dev_link_t *nmclan_attach(void)
     dev->watchdog_timeo = TX_TIMEOUT;
 #endif
 
-    /* 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 != 0) {
-	cs_error(link->handle, RegisterClient, ret);
-	nmclan_detach(link->handle);
-	return NULL;
-    }
+    link->handle = p_dev;
+    p_dev->instance = link;
+
+    link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
+    nmclan_config(link);
 
-    return link;
+    return 0;
 } /* nmclan_attach */
 
 /* ----------------------------------------------------------------------------
@@ -821,31 +808,6 @@ static int nmclan_resume(struct pcmcia_device *p_dev)
 	return 0;
 }
 
-/* ----------------------------------------------------------------------------
-nmclan_event
-	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 nmclan_event(event_t event, int priority,
-		       event_callback_args_t *args)
-{
-  dev_link_t *link = args->client_data;
-
-  DEBUG(1, "nmclan_event(0x%06x)\n", event);
-
-  switch (event) {
-    case CS_EVENT_CARD_INSERTION:
-      link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
-      nmclan_config(link);
-      break;
-    case CS_EVENT_RESET_REQUEST:
-      return 1;
-      break;
-  }
-  return 0;
-} /* nmclan_event */
 
 /* ----------------------------------------------------------------------------
 nmclan_reset
@@ -1673,8 +1635,7 @@ static struct pcmcia_driver nmclan_cs_driver = {
 	.drv		= {
 		.name	= "nmclan_cs",
 	},
-	.attach		= nmclan_attach,
-	.event		= nmclan_event,
+	.probe		= nmclan_attach,
 	.remove		= nmclan_detach,
 	.id_table       = nmclan_ids,
 	.suspend	= nmclan_suspend,