2005-04-17 02:20:36 +04:00
|
|
|
/*
|
|
|
|
* Zorro Driver Services
|
|
|
|
*
|
|
|
|
* Copyright (C) 2003 Geert Uytterhoeven
|
|
|
|
*
|
|
|
|
* Loosely based on drivers/pci/pci-driver.c
|
|
|
|
*
|
|
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
|
|
* License. See the file COPYING in the main directory of this archive
|
|
|
|
* for more details.
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include <linux/init.h>
|
|
|
|
#include <linux/module.h>
|
|
|
|
#include <linux/zorro.h>
|
|
|
|
|
2017-02-14 23:24:09 +03:00
|
|
|
#include "zorro.h"
|
|
|
|
|
2005-04-17 02:20:36 +04:00
|
|
|
|
|
|
|
/**
|
|
|
|
* zorro_match_device - Tell if a Zorro device structure has a matching
|
|
|
|
* Zorro device id structure
|
|
|
|
* @ids: array of Zorro device id structures to search in
|
|
|
|
* @dev: the Zorro device structure to match against
|
|
|
|
*
|
|
|
|
* Used by a driver to check whether a Zorro device present in the
|
|
|
|
* system is in its list of supported devices. Returns the matching
|
|
|
|
* zorro_device_id structure or %NULL if there is no match.
|
|
|
|
*/
|
|
|
|
|
2020-01-12 19:49:45 +03:00
|
|
|
static const struct zorro_device_id *
|
2005-04-17 02:20:36 +04:00
|
|
|
zorro_match_device(const struct zorro_device_id *ids,
|
|
|
|
const struct zorro_dev *z)
|
|
|
|
{
|
|
|
|
while (ids->id) {
|
|
|
|
if (ids->id == ZORRO_WILDCARD || ids->id == z->id)
|
|
|
|
return ids;
|
|
|
|
ids++;
|
|
|
|
}
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static int zorro_device_probe(struct device *dev)
|
|
|
|
{
|
|
|
|
int error = 0;
|
|
|
|
struct zorro_driver *drv = to_zorro_driver(dev->driver);
|
|
|
|
struct zorro_dev *z = to_zorro_dev(dev);
|
|
|
|
|
2021-07-30 22:10:35 +03:00
|
|
|
if (drv->probe) {
|
2005-04-17 02:20:36 +04:00
|
|
|
const struct zorro_device_id *id;
|
|
|
|
|
|
|
|
id = zorro_match_device(drv->id_table, z);
|
|
|
|
if (id)
|
|
|
|
error = drv->probe(z, id);
|
2021-07-30 22:10:35 +03:00
|
|
|
if (error >= 0)
|
2005-04-17 02:20:36 +04:00
|
|
|
error = 0;
|
|
|
|
}
|
|
|
|
return error;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2021-07-13 22:35:22 +03:00
|
|
|
static void zorro_device_remove(struct device *dev)
|
2007-11-18 13:10:04 +03:00
|
|
|
{
|
|
|
|
struct zorro_dev *z = to_zorro_dev(dev);
|
|
|
|
struct zorro_driver *drv = to_zorro_driver(dev->driver);
|
|
|
|
|
2021-07-30 22:10:34 +03:00
|
|
|
if (drv->remove)
|
|
|
|
drv->remove(z);
|
2007-11-18 13:10:04 +03:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2005-04-17 02:20:36 +04:00
|
|
|
/**
|
|
|
|
* zorro_register_driver - register a new Zorro driver
|
|
|
|
* @drv: the driver structure to register
|
|
|
|
*
|
|
|
|
* Adds the driver structure to the list of registered drivers
|
2006-03-25 14:07:20 +03:00
|
|
|
* Returns zero or a negative error value.
|
2005-04-17 02:20:36 +04:00
|
|
|
*/
|
|
|
|
|
|
|
|
int zorro_register_driver(struct zorro_driver *drv)
|
|
|
|
{
|
|
|
|
/* initialize common driver fields */
|
|
|
|
drv->driver.name = drv->name;
|
|
|
|
drv->driver.bus = &zorro_bus_type;
|
|
|
|
|
|
|
|
/* register with core */
|
2006-03-25 14:07:20 +03:00
|
|
|
return driver_register(&drv->driver);
|
2005-04-17 02:20:36 +04:00
|
|
|
}
|
2011-07-18 01:12:30 +04:00
|
|
|
EXPORT_SYMBOL(zorro_register_driver);
|
2005-04-17 02:20:36 +04:00
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
* zorro_unregister_driver - unregister a zorro driver
|
|
|
|
* @drv: the driver structure to unregister
|
|
|
|
*
|
|
|
|
* Deletes the driver structure from the list of registered Zorro drivers,
|
|
|
|
* gives it a chance to clean up by calling its remove() function for
|
|
|
|
* each device it was responsible for, and marks those devices as
|
|
|
|
* driverless.
|
|
|
|
*/
|
|
|
|
|
|
|
|
void zorro_unregister_driver(struct zorro_driver *drv)
|
|
|
|
{
|
|
|
|
driver_unregister(&drv->driver);
|
|
|
|
}
|
2011-07-18 01:12:30 +04:00
|
|
|
EXPORT_SYMBOL(zorro_unregister_driver);
|
2005-04-17 02:20:36 +04:00
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
* zorro_bus_match - Tell if a Zorro device structure has a matching Zorro
|
|
|
|
* device id structure
|
|
|
|
* @ids: array of Zorro device id structures to search in
|
|
|
|
* @dev: the Zorro device structure to match against
|
|
|
|
*
|
2020-01-12 19:49:46 +03:00
|
|
|
* Used by the driver core to check whether a Zorro device present in the
|
|
|
|
* system is in a driver's list of supported devices. Returns 1 if
|
|
|
|
* supported, and 0 if there is no match.
|
2005-04-17 02:20:36 +04:00
|
|
|
*/
|
|
|
|
|
|
|
|
static int zorro_bus_match(struct device *dev, struct device_driver *drv)
|
|
|
|
{
|
|
|
|
struct zorro_dev *z = to_zorro_dev(dev);
|
|
|
|
struct zorro_driver *zorro_drv = to_zorro_driver(drv);
|
|
|
|
const struct zorro_device_id *ids = zorro_drv->id_table;
|
|
|
|
|
|
|
|
if (!ids)
|
|
|
|
return 0;
|
|
|
|
|
2020-01-12 19:49:47 +03:00
|
|
|
return !!zorro_match_device(ids, z);
|
2005-04-17 02:20:36 +04:00
|
|
|
}
|
|
|
|
|
2008-11-18 23:13:53 +03:00
|
|
|
static int zorro_uevent(struct device *dev, struct kobj_uevent_env *env)
|
|
|
|
{
|
|
|
|
struct zorro_dev *z;
|
|
|
|
|
|
|
|
if (!dev)
|
|
|
|
return -ENODEV;
|
|
|
|
|
|
|
|
z = to_zorro_dev(dev);
|
|
|
|
if (!z)
|
|
|
|
return -ENODEV;
|
|
|
|
|
|
|
|
if (add_uevent_var(env, "ZORRO_ID=%08X", z->id) ||
|
|
|
|
add_uevent_var(env, "ZORRO_SLOT_NAME=%s", dev_name(dev)) ||
|
|
|
|
add_uevent_var(env, "ZORRO_SLOT_ADDR=%04X", z->slotaddr) ||
|
|
|
|
add_uevent_var(env, "MODALIAS=" ZORRO_DEVICE_MODALIAS_FMT, z->id))
|
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
2005-04-17 02:20:36 +04:00
|
|
|
|
|
|
|
struct bus_type zorro_bus_type = {
|
2017-02-14 23:24:09 +03:00
|
|
|
.name = "zorro",
|
|
|
|
.dev_name = "zorro",
|
|
|
|
.dev_groups = zorro_device_attribute_groups,
|
|
|
|
.match = zorro_bus_match,
|
|
|
|
.uevent = zorro_uevent,
|
|
|
|
.probe = zorro_device_probe,
|
|
|
|
.remove = zorro_device_remove,
|
2005-04-17 02:20:36 +04:00
|
|
|
};
|
2011-07-18 01:12:30 +04:00
|
|
|
EXPORT_SYMBOL(zorro_bus_type);
|
2005-04-17 02:20:36 +04:00
|
|
|
|
|
|
|
|
|
|
|
static int __init zorro_driver_init(void)
|
|
|
|
{
|
|
|
|
return bus_register(&zorro_bus_type);
|
|
|
|
}
|
|
|
|
|
|
|
|
postcore_initcall(zorro_driver_init);
|
|
|
|
|