From f8cfa618dccbdc6dab5297f75779566a388a98fd Mon Sep 17 00:00:00 2001 From: Dominik Brodowski Date: Mon, 14 Nov 2005 21:25:51 +0100 Subject: [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 --- drivers/net/wireless/atmel_cs.c | 80 +++++++++-------------------------------- 1 file changed, 16 insertions(+), 64 deletions(-) (limited to 'drivers/net/wireless/atmel_cs.c') diff --git a/drivers/net/wireless/atmel_cs.c b/drivers/net/wireless/atmel_cs.c index 32f00970935..d6f4a5a3e55 100644 --- a/drivers/net/wireless/atmel_cs.c +++ b/drivers/net/wireless/atmel_cs.c @@ -93,8 +93,6 @@ MODULE_SUPPORTED_DEVICE("Atmel at76c50x PCMCIA cards"); 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); /* 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); /* @@ -112,14 +109,6 @@ static void atmel_detach(struct pcmcia_device *p_dev); less on other parts of the kernel. */ -/* - 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 @@ -163,27 +152,25 @@ 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; + return -ENOMEM; } - + /* Interrupt setup */ link->irq.Attributes = IRQ_TYPE_EXCLUSIVE; link->irq.IRQInfo1 = IRQ_LEVEL_ID; link->irq.Handler = NULL; - + /* General socket configuration defaults can go here. In this client, we assume very little, and rely on the CIS for almost @@ -194,29 +181,23 @@ static dev_link_t *atmel_attach(void) link->conf.Attributes = 0; link->conf.Vcc = 50; link->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; + return -ENOMEM; } 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 link; + + link->handle = p_dev; + p_dev->instance = link; + + link->state |= DEV_PRESENT | DEV_CONFIG_PENDING; + atmel_config(link); + + return 0; } /* atmel_attach */ /*====================================================================== @@ -485,34 +466,6 @@ 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 +515,7 @@ 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, -- cgit v1.2.3