[PATCH] pcmcia: remove dev_link_t and client_handle_t indirection
[safe/jmp/linux-2.6] / drivers / net / wireless / atmel_cs.c
index 32f0097..843dd1a 100644 (file)
@@ -91,10 +91,8 @@ MODULE_SUPPORTED_DEVICE("Atmel at76c50x PCMCIA cards");
    event handler. 
 */
 
-static void atmel_config(dev_link_t *link);
-static void atmel_release(dev_link_t *link);
-static int atmel_event(event_t event, int priority,
-                      event_callback_args_t *args);
+static void atmel_config(struct pcmcia_device *link);
+static void atmel_release(struct pcmcia_device *link);
 
 /*
    The attach() and detach() entry points are used to create and destroy
@@ -102,7 +100,6 @@ static int atmel_event(event_t event, int priority,
    needed to manage one actual PCMCIA card.
 */
 
-static dev_link_t *atmel_attach(void);
 static void atmel_detach(struct pcmcia_device *p_dev);
 
 /*
@@ -113,20 +110,12 @@ static void atmel_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 = "atmel_cs";
-
-/*
    A linked list of "instances" of the  atmelnet device.  Each actual
    PCMCIA card corresponds to one device instance, and is described
-   by one dev_link_t structure (defined in ds.h).
+   by one struct pcmcia_device 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
+   memory card driver uses an array of struct pcmcia_device pointers, where minor
    device numbers are used to derive the corresponding array index.
 */
 
@@ -136,7 +125,7 @@ static dev_info_t dev_info = "atmel_cs";
    example, ethernet cards, modems).  In other cases, there may be
    many actual or logical devices (SCSI adapters, memory cards with
    multiple partitions).  The dev_node_t structures need to be kept
-   in a linked list starting at the 'dev' field of a dev_link_t
+   in a linked list starting at the 'dev' field of a struct pcmcia_device
    structure.  We allocate them in the card's private data structure,
    because they generally shouldn't be allocated dynamically.
 
@@ -163,27 +152,17 @@ typedef struct local_info_t {
   
   ======================================================================*/
 
-static dev_link_t *atmel_attach(void)
+static int atmel_attach(struct pcmcia_device *p_dev)
 {
-       client_reg_t client_reg;
-       dev_link_t *link;
        local_info_t *local;
-       int ret;
-       
+
        DEBUG(0, "atmel_attach()\n");
 
-       /* Initialize the dev_link_t structure */
-       link = kzalloc(sizeof(struct dev_link_t), GFP_KERNEL);
-       if (!link) {
-               printk(KERN_ERR "atmel_cs: no memory for new device\n");
-               return NULL;
-       }
-       
        /* Interrupt setup */
-       link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
-       link->irq.IRQInfo1 = IRQ_LEVEL_ID;
-       link->irq.Handler = NULL;
-       
+       p_dev->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
+       p_dev->irq.IRQInfo1 = IRQ_LEVEL_ID;
+       p_dev->irq.Handler = NULL;
+
        /*
          General socket configuration defaults can go here.  In this
          client, we assume very little, and rely on the CIS for almost
@@ -191,32 +170,21 @@ static dev_link_t *atmel_attach(void)
          and attributes of IO windows) are fixed by the nature of the
          device, and can be hard-wired here.
        */
-       link->conf.Attributes = 0;
-       link->conf.Vcc = 50;
-       link->conf.IntType = INT_MEMORY_AND_IO;
-       
+       p_dev->conf.Attributes = 0;
+       p_dev->conf.IntType = INT_MEMORY_AND_IO;
+
        /* Allocate space for private device-specific data */
        local = kzalloc(sizeof(local_info_t), GFP_KERNEL);
        if (!local) {
                printk(KERN_ERR "atmel_cs: no memory for new device\n");
-               kfree (link);
-               return NULL;
-       }
-       link->priv = local;
-       
-       /* 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);
-               atmel_detach(link->handle);
-               return NULL;
+               return -ENOMEM;
        }
-       
-       return link;
+       p_dev->priv = local;
+
+       p_dev->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
+       atmel_config(p_dev);
+
+       return 0;
 } /* atmel_attach */
 
 /*======================================================================
@@ -228,17 +196,14 @@ static dev_link_t *atmel_attach(void)
   
   ======================================================================*/
 
-static void atmel_detach(struct pcmcia_device *p_dev)
+static void atmel_detach(struct pcmcia_device *link)
 {
-       dev_link_t *link = dev_to_instance(p_dev);
-
        DEBUG(0, "atmel_detach(0x%p)\n", link);
 
        if (link->state & DEV_CONFIG)
                atmel_release(link);
 
        kfree(link->priv);
-       kfree(link);
 }
 
 /*======================================================================
@@ -256,7 +221,7 @@ do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
    about the current existance of the card */
 static int card_present(void *arg)
 { 
-       dev_link_t *link = (dev_link_t *)arg;
+       struct pcmcia_device *link = (struct pcmcia_device *)arg;
        if (link->state & DEV_SUSPEND)
                return 0;
        else if (link->state & DEV_PRESENT)
@@ -265,9 +230,8 @@ static int card_present(void *arg)
        return 0;
 }
 
-static void atmel_config(dev_link_t *link)
+static void atmel_config(struct pcmcia_device *link)
 {
-       client_handle_t handle;
        tuple_t tuple;
        cisparse_t parse;
        local_info_t *dev;
@@ -275,9 +239,8 @@ static void atmel_config(dev_link_t *link)
        u_char buf[64];
        struct pcmcia_device_id *did;
 
-       handle = link->handle;
        dev = link->priv;
-       did = handle_to_dev(handle).driver_data;
+       did = handle_to_dev(link).driver_data;
 
        DEBUG(0, "atmel_config(0x%p)\n", link);
        
@@ -291,9 +254,9 @@ static void atmel_config(dev_link_t *link)
          registers.
        */
        tuple.DesiredTuple = CISTPL_CONFIG;
-       CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
-       CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
-       CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse));
+       CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
+       CS_CHECK(GetTupleData, pcmcia_get_tuple_data(link, &tuple));
+       CS_CHECK(ParseTuple, pcmcia_parse_tuple(link, &tuple, &parse));
        link->conf.ConfigBase = parse.config.base;
        link->conf.Present = parse.config.rmask[0];
        
@@ -313,12 +276,12 @@ static void atmel_config(dev_link_t *link)
          will only use the CIS to fill in implementation-defined details.
        */
        tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
-       CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
+       CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
        while (1) {
                cistpl_cftable_entry_t dflt = { 0 };
                cistpl_cftable_entry_t *cfg = &(parse.cftable_entry);
-               if (pcmcia_get_tuple_data(handle, &tuple) != 0 ||
-                               pcmcia_parse_tuple(handle, &tuple, &parse) != 0)
+               if (pcmcia_get_tuple_data(link, &tuple) != 0 ||
+                               pcmcia_parse_tuple(link, &tuple, &parse) != 0)
                        goto next_entry;
                
                if (cfg->flags & CISTPL_CFTABLE_DEFAULT) dflt = *cfg;
@@ -333,16 +296,11 @@ static void atmel_config(dev_link_t *link)
                
                /* Use power settings for Vcc and Vpp if present */
                /*  Note that the CIS values need to be rescaled */
-               if (cfg->vcc.present & (1<<CISTPL_POWER_VNOM))
-                       link->conf.Vcc = cfg->vcc.param[CISTPL_POWER_VNOM]/10000;
-               else if (dflt.vcc.present & (1<<CISTPL_POWER_VNOM))
-                       link->conf.Vcc = dflt.vcc.param[CISTPL_POWER_VNOM]/10000;
-               
                if (cfg->vpp1.present & (1<<CISTPL_POWER_VNOM))
-                       link->conf.Vpp1 = link->conf.Vpp2 =
+                       link->conf.Vpp =
                                cfg->vpp1.param[CISTPL_POWER_VNOM]/10000;
                else if (dflt.vpp1.present & (1<<CISTPL_POWER_VNOM))
-                       link->conf.Vpp1 = link->conf.Vpp2 =
+                       link->conf.Vpp =
                                dflt.vpp1.param[CISTPL_POWER_VNOM]/10000;
                
                /* Do we need to allocate an interrupt? */
@@ -368,14 +326,14 @@ static void atmel_config(dev_link_t *link)
                }
                
                /* This reserves IO space but doesn't actually enable it */
-               if (pcmcia_request_io(link->handle, &link->io) != 0)
+               if (pcmcia_request_io(link, &link->io) != 0)
                        goto next_entry;
 
                /* If we got this far, we're cool! */
                break;
                
        next_entry:
-               CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(handle, &tuple));
+               CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(link, &tuple));
        }
        
        /*
@@ -384,14 +342,14 @@ static void atmel_config(dev_link_t *link)
          irq structure is initialized.
        */
        if (link->conf.Attributes & CONF_ENABLE_IRQ)
-               CS_CHECK(RequestIRQ, pcmcia_request_irq(link->handle, &link->irq));
+               CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
        
        /*
          This actually configures the PCMCIA socket -- setting up
          the I/O windows and the interrupt mapping, and putting the
          card and host interface into "Memory and IO" mode.
        */
-       CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link->handle, &link->conf));
+       CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
        
        if (link->irq.AssignedIRQ == 0) {
                printk(KERN_ALERT 
@@ -403,7 +361,7 @@ static void atmel_config(dev_link_t *link)
                init_atmel_card(link->irq.AssignedIRQ,
                                link->io.BasePort1,
                                did ? did->driver_info : ATMEL_FW_TYPE_NONE,
-                               &handle_to_dev(handle),
+                               &handle_to_dev(link),
                                card_present, 
                                link);
        if (!((local_info_t*)link->priv)->eth_dev) 
@@ -412,17 +370,17 @@ static void atmel_config(dev_link_t *link)
        
        /*
          At this point, the dev_node_t structure(s) need to be
-         initialized and arranged in a linked list at link->dev.
+         initialized and arranged in a linked list at link->dev_node.
        */
        strcpy(dev->node.dev_name, ((local_info_t*)link->priv)->eth_dev->name );
        dev->node.major = dev->node.minor = 0;
-       link->dev = &dev->node;
+       link->dev_node = &dev->node;
                        
        link->state &= ~DEV_CONFIG_PENDING;
        return;
        
  cs_failed:
-       cs_error(link->handle, last_fn, last_ret);
+       cs_error(link, last_fn, last_ret);
        atmel_release(link);
 }
 
@@ -434,50 +392,34 @@ static void atmel_config(dev_link_t *link)
   
   ======================================================================*/
 
-static void atmel_release(dev_link_t *link)
+static void atmel_release(struct pcmcia_device *link)
 {
        struct net_device *dev = ((local_info_t*)link->priv)->eth_dev;
-               
+
        DEBUG(0, "atmel_release(0x%p)\n", link);
-       
-       /* Unlink the device chain */
-       link->dev = NULL;
-       
-       if (dev) 
+
+       if (dev)
                stop_atmel_card(dev);
-       ((local_info_t*)link->priv)->eth_dev = NULL; 
-       
-       /* Don't bother checking to see if these succeed or not */
-       pcmcia_release_configuration(link->handle);
-       if (link->io.NumPorts1)
-               pcmcia_release_io(link->handle, &link->io);
-       if (link->irq.AssignedIRQ)
-               pcmcia_release_irq(link->handle, &link->irq);
-       link->state &= ~DEV_CONFIG;
+       ((local_info_t*)link->priv)->eth_dev = NULL;
+
+       pcmcia_disable_device(link);
 }
 
-static int atmel_suspend(struct pcmcia_device *dev)
+static int atmel_suspend(struct pcmcia_device *link)
 {
-       dev_link_t *link = dev_to_instance(dev);
        local_info_t *local = link->priv;
 
-       link->state |= DEV_SUSPEND;
-       if (link->state & DEV_CONFIG) {
+       if (link->state & DEV_CONFIG)
                netif_device_detach(local->eth_dev);
-               pcmcia_release_configuration(link->handle);
-       }
 
        return 0;
 }
 
-static int atmel_resume(struct pcmcia_device *dev)
+static int atmel_resume(struct pcmcia_device *link)
 {
-       dev_link_t *link = dev_to_instance(dev);
        local_info_t *local = link->priv;
 
-       link->state &= ~DEV_SUSPEND;
        if (link->state & DEV_CONFIG) {
-               pcmcia_request_configuration(link->handle, &link->conf);
                atmel_open(local->eth_dev);
                netif_device_attach(local->eth_dev);
        }
@@ -485,34 +427,6 @@ static int atmel_resume(struct pcmcia_device *dev)
        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 atmel_event(event_t event, int priority,
-                     event_callback_args_t *args)
-{
-       dev_link_t *link = args->client_data;
-
-       DEBUG(1, "atmel_event(0x%06x)\n", event);
-
-       switch (event) {
-       case CS_EVENT_CARD_INSERTION:
-               link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
-               atmel_config(link);
-               break;
-       }
-       return 0;
-} /* atmel_event */
-
 /*====================================================================*/
 /* We use the driver_info field to store the correct firmware type for a card. */
 
@@ -562,8 +476,7 @@ static struct pcmcia_driver atmel_driver = {
        .drv            = {
                .name   = "atmel_cs",
         },
-       .attach         = atmel_attach,
-       .event          = atmel_event,
+       .probe          = atmel_attach,
        .remove         = atmel_detach,
        .id_table       = atmel_ids,
        .suspend        = atmel_suspend,