#include <linux/moduleparam.h>
#include <linux/device.h>
-#include <pcmcia/cs.h>
#include <pcmcia/cistpl.h>
#include <pcmcia/cisreg.h>
#include <pcmcia/ds.h>
/*====================================================================*/
-/*
- The event() function is this driver's Card Services event handler.
- It will be called by Card Services when an appropriate card status
- event is received. The config() and release() entry points are
- used to configure or release a socket, in response to card
- insertion and ejection events. They are invoked from the atmel_cs
- event handler.
-*/
-
static int 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
- "instances" of the driver, where each instance represents everything
- needed to manage one actual PCMCIA card.
-*/
-
static void atmel_detach(struct pcmcia_device *p_dev);
typedef struct local_info_t {
struct net_device *eth_dev;
} local_info_t;
-/*======================================================================
-
- atmel_attach() creates an "instance" of the driver, allocating
- local data structures for one device. The device is registered
- with Card Services.
-
- The dev_link structure is initialized, but we don't actually
- configure the card at this point -- we wait until we receive a
- card insertion event.
-
- ======================================================================*/
-
static int atmel_probe(struct pcmcia_device *p_dev)
{
local_info_t *local;
dev_dbg(&p_dev->dev, "atmel_attach()\n");
- /*
- General socket configuration defaults can go here. In this
- client, we assume very little, and rely on the CIS for almost
- everything. In most clients, many details (i.e., number, sizes,
- and attributes of IO windows) are fixed by the nature of the
- device, and can be hard-wired here.
- */
- 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) {
return atmel_config(p_dev);
} /* atmel_attach */
-/*======================================================================
-
- This deletes a driver "instance". The device is de-registered
- with Card Services. If it has been released, all local data
- structures are freed. Otherwise, the structures will be freed
- when the device is released.
-
- ======================================================================*/
-
static void atmel_detach(struct pcmcia_device *link)
{
dev_dbg(&link->dev, "atmel_detach\n");
kfree(link->priv);
}
-/*======================================================================
-
- atmel_config() is scheduled to run after a CARD_INSERTION event
- is received, to configure the PCMCIA socket, and to make the
- device available to the system.
-
- ======================================================================*/
-
/* Call-back function to interrogate PCMCIA-specific information
about the current existance of the card */
static int card_present(void *arg)
return 0;
}
-static int atmel_config_check(struct pcmcia_device *p_dev,
- cistpl_cftable_entry_t *cfg,
- cistpl_cftable_entry_t *dflt,
- unsigned int vcc,
- void *priv_data)
+static int atmel_config_check(struct pcmcia_device *p_dev, void *priv_data)
{
- if (cfg->index == 0)
- return -ENODEV;
-
- /* Does this card need audio output? */
- if (cfg->flags & CISTPL_CFTABLE_AUDIO) {
- p_dev->conf.Attributes |= CONF_ENABLE_SPKR;
- p_dev->conf.Status = CCSR_AUDIO_ENA;
- }
+ if (p_dev->config_index == 0)
+ return -EINVAL;
- /* Use power settings for Vcc and Vpp if present */
- /* Note that the CIS values need to be rescaled */
- if (cfg->vpp1.present & (1<<CISTPL_POWER_VNOM))
- p_dev->conf.Vpp = cfg->vpp1.param[CISTPL_POWER_VNOM]/10000;
- else if (dflt->vpp1.present & (1<<CISTPL_POWER_VNOM))
- p_dev->conf.Vpp = dflt->vpp1.param[CISTPL_POWER_VNOM]/10000;
-
- p_dev->conf.Attributes |= CONF_ENABLE_IRQ;
-
- /* IO window settings */
- p_dev->resource[0]->end = p_dev->resource[1]->end = 0;
- if ((cfg->io.nwin > 0) || (dflt->io.nwin > 0)) {
- cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt->io;
- p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
- p_dev->resource[0]->flags |=
- pcmcia_io_cfg_data_width(io->flags);
- p_dev->resource[0]->start = io->win[0].base;
- p_dev->resource[0]->end = io->win[0].len;
- if (io->nwin > 1) {
- p_dev->resource[1]->flags = p_dev->resource[0]->flags;
- p_dev->resource[1]->start = io->win[1].base;
- p_dev->resource[1]->end = io->win[1].len;
- }
- }
-
- /* This reserves IO space but doesn't actually enable it */
return pcmcia_request_io(p_dev);
}
dev_dbg(&link->dev, "atmel_config\n");
- /*
- In this loop, we scan the CIS for configuration table entries,
- each of which describes a valid card configuration, including
- voltage, IO window, memory window, and interrupt settings.
-
- We make no assumptions about the card to be configured: we use
- just the information available in the CIS. In an ideal world,
- this would work for any PCMCIA card, but it requires a complete
- and accurate CIS. In practice, a driver usually "knows" most of
- these things without consulting the CIS, and most client drivers
- will only use the CIS to fill in implementation-defined details.
- */
+ link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_VPP |
+ CONF_AUTO_AUDIO | CONF_AUTO_SET_IO;
+
if (pcmcia_loop_config(link, atmel_config_check, NULL))
goto failed;
goto failed;
}
- /*
- 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.
- */
- ret = pcmcia_request_configuration(link, &link->conf);
+ ret = pcmcia_enable_device(link);
if (ret)
goto failed;
return -ENODEV;
}
-/*======================================================================
-
- After a card is removed, atmel_release() will unregister the
- device, and release the PCMCIA configuration. If the device is
- still open, this will be postponed until it is closed.
-
- ======================================================================*/
-
static void atmel_release(struct pcmcia_device *link)
{
struct net_device *dev = ((local_info_t*)link->priv)->eth_dev;
static struct pcmcia_driver atmel_driver = {
.owner = THIS_MODULE,
- .drv = {
- .name = "atmel_cs",
- },
+ .name = "atmel_cs",
.probe = atmel_probe,
.remove = atmel_detach,
.id_table = atmel_ids,
.resume = atmel_resume,
};
-static int atmel_cs_init(void)
+static int __init atmel_cs_init(void)
{
return pcmcia_register_driver(&atmel_driver);
}
-static void atmel_cs_cleanup(void)
+static void __exit atmel_cs_cleanup(void)
{
pcmcia_unregister_driver(&atmel_driver);
}
projects / mv-sheeva.git / blobdiff