diff options
Diffstat (limited to 'drivers/isdn/hisax/sedlbauer_cs.c')
| -rw-r--r-- | drivers/isdn/hisax/sedlbauer_cs.c | 169 |
1 files changed, 36 insertions, 133 deletions
diff --git a/drivers/isdn/hisax/sedlbauer_cs.c b/drivers/isdn/hisax/sedlbauer_cs.c index dc334aab433e..6f5213a18a8d 100644 --- a/drivers/isdn/hisax/sedlbauer_cs.c +++ b/drivers/isdn/hisax/sedlbauer_cs.c @@ -97,8 +97,6 @@ module_param(protocol, int, 0); 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 @@ -106,8 +104,7 @@ static int sedlbauer_event(event_t event, int priority, needed to manage one actual PCMCIA card. */ -static dev_link_t *sedlbauer_attach(void); -static void sedlbauer_detach(dev_link_t *); +static void sedlbauer_detach(struct pcmcia_device *p_dev); /* You'll also need to prototype all the functions that will actually @@ -117,35 +114,6 @@ static void sedlbauer_detach(dev_link_t *); */ /* - 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. -*/ - -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 @@ -180,18 +148,16 @@ typedef struct local_info_t { ======================================================================*/ -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; @@ -221,20 +187,13 @@ static dev_link_t *sedlbauer_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); - sedlbauer_detach(link); - return NULL; - } + link->handle = p_dev; + p_dev->instance = link; + + link->state |= DEV_PRESENT | DEV_CONFIG_PENDING; + sedlbauer_config(link); - return link; + return 0; } /* sedlbauer_attach */ /*====================================================================== @@ -246,39 +205,17 @@ static dev_link_t *sedlbauer_attach(void) ======================================================================*/ -static void sedlbauer_detach(dev_link_t *link) +static void sedlbauer_detach(struct pcmcia_device *p_dev) { - dev_link_t **linkp; + dev_link_t *link = dev_to_instance(p_dev); DEBUG(0, "sedlbauer_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 the device is currently configured and active, we won't - actually delete it yet. Instead, it is marked so that when - the release() function is called, that will trigger a proper - detach(). - */ if (link->state & DEV_CONFIG) { -#ifdef PCMCIA_DEBUG - printk(KERN_DEBUG "sedlbauer_cs: detach postponed, '%s' " - "still locked\n", link->dev->dev_name); -#endif - link->state |= DEV_STALE_LINK; - return; + ((local_info_t *)link->priv)->stop = 1; + sedlbauer_release(link); } - /* Break the link with Card Services */ - if (link->handle) - pcmcia_deregister_client(link->handle); - - /* Unlink device structure, and free it */ - *linkp = link->next; /* This points to the parent local_info_t struct */ kfree(link->priv); } /* sedlbauer_detach */ @@ -547,68 +484,34 @@ static void sedlbauer_release(dev_link_t *link) if (link->irq.AssignedIRQ) pcmcia_release_irq(link->handle, &link->irq); link->state &= ~DEV_CONFIG; - - if (link->state & DEV_STALE_LINK) - sedlbauer_detach(link); - } /* sedlbauer_release */ -/*====================================================================== - - 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) +static int sedlbauer_suspend(struct pcmcia_device *p_dev) { - dev_link_t *link = args->client_data; - local_info_t *dev = link->priv; - - DEBUG(1, "sedlbauer_event(0x%06x)\n", event); - - switch (event) { - case CS_EVENT_CARD_REMOVAL: - link->state &= ~DEV_PRESENT; - if (link->state & DEV_CONFIG) { - ((local_info_t *)link->priv)->stop = 1; - sedlbauer_release(link); - } - break; - case CS_EVENT_CARD_INSERTION: - link->state |= DEV_PRESENT | DEV_CONFIG_PENDING; - sedlbauer_config(link); - break; - case CS_EVENT_PM_SUSPEND: + dev_link_t *link = dev_to_instance(p_dev); + local_info_t *dev = link->priv; + link->state |= DEV_SUSPEND; - /* Fall through... */ - case CS_EVENT_RESET_PHYSICAL: - /* Mark the device as stopped, to block IO until later */ dev->stop = 1; if (link->state & DEV_CONFIG) - pcmcia_release_configuration(link->handle); - break; - case CS_EVENT_PM_RESUME: + pcmcia_release_configuration(link->handle); + + return 0; +} + +static int sedlbauer_resume(struct pcmcia_device *p_dev) +{ + dev_link_t *link = dev_to_instance(p_dev); + local_info_t *dev = link->priv; + link->state &= ~DEV_SUSPEND; - /* Fall through... */ - case CS_EVENT_CARD_RESET: if (link->state & DEV_CONFIG) - pcmcia_request_configuration(link->handle, &link->conf); + pcmcia_request_configuration(link->handle, &link->conf); dev->stop = 0; - /* - In a normal driver, additional code may go here to restore - the device state and restart IO. - */ - break; - } - return 0; -} /* sedlbauer_event */ + + return 0; +} + static struct pcmcia_device_id sedlbauer_ids[] = { PCMCIA_DEVICE_PROD_ID123("SEDLBAUER", "speed star II", "V 3.1", 0x81fb79f5, 0xf3612e1d, 0x6b95c78a), @@ -627,10 +530,11 @@ static struct pcmcia_driver sedlbauer_driver = { .drv = { .name = "sedlbauer_cs", }, - .attach = sedlbauer_attach, - .event = sedlbauer_event, - .detach = sedlbauer_detach, + .probe = sedlbauer_attach, + .remove = sedlbauer_detach, .id_table = sedlbauer_ids, + .suspend = sedlbauer_suspend, + .resume = sedlbauer_resume, }; static int __init init_sedlbauer_cs(void) @@ -641,7 +545,6 @@ static int __init init_sedlbauer_cs(void) static void __exit exit_sedlbauer_cs(void) { pcmcia_unregister_driver(&sedlbauer_driver); - BUG_ON(dev_list != NULL); } module_init(init_sedlbauer_cs); |