2 * Zorro Driver Services
4 * Copyright (C) 2003 Geert Uytterhoeven
6 * Loosely based on drivers/pci/pci-driver.c
8 * This file is subject to the terms and conditions of the GNU General Public
9 * License. See the file COPYING in the main directory of this archive
13 #include <linux/init.h>
14 #include <linux/module.h>
15 #include <linux/zorro.h>
21 * zorro_match_device - Tell if a Zorro device structure has a matching
22 * Zorro device id structure
23 * @ids: array of Zorro device id structures to search in
24 * @dev: the Zorro device structure to match against
26 * Used by a driver to check whether a Zorro device present in the
27 * system is in its list of supported devices. Returns the matching
28 * zorro_device_id structure or %NULL if there is no match.
31 static const struct zorro_device_id *
32 zorro_match_device(const struct zorro_device_id *ids,
33 const struct zorro_dev *z)
36 if (ids->id == ZORRO_WILDCARD || ids->id == z->id)
44 static int zorro_device_probe(struct device *dev)
47 struct zorro_driver *drv = to_zorro_driver(dev->driver);
48 struct zorro_dev *z = to_zorro_dev(dev);
51 const struct zorro_device_id *id;
53 id = zorro_match_device(drv->id_table, z);
55 error = drv->probe(z, id);
63 static void zorro_device_remove(struct device *dev)
65 struct zorro_dev *z = to_zorro_dev(dev);
66 struct zorro_driver *drv = to_zorro_driver(dev->driver);
74 * zorro_register_driver - register a new Zorro driver
75 * @drv: the driver structure to register
77 * Adds the driver structure to the list of registered drivers
78 * Returns zero or a negative error value.
81 int zorro_register_driver(struct zorro_driver *drv)
83 /* initialize common driver fields */
84 drv->driver.name = drv->name;
85 drv->driver.bus = &zorro_bus_type;
87 /* register with core */
88 return driver_register(&drv->driver);
90 EXPORT_SYMBOL(zorro_register_driver);
94 * zorro_unregister_driver - unregister a zorro driver
95 * @drv: the driver structure to unregister
97 * Deletes the driver structure from the list of registered Zorro drivers,
98 * gives it a chance to clean up by calling its remove() function for
99 * each device it was responsible for, and marks those devices as
103 void zorro_unregister_driver(struct zorro_driver *drv)
105 driver_unregister(&drv->driver);
107 EXPORT_SYMBOL(zorro_unregister_driver);
111 * zorro_bus_match - Tell if a Zorro device structure has a matching Zorro
112 * device id structure
113 * @ids: array of Zorro device id structures to search in
114 * @dev: the Zorro device structure to match against
116 * Used by the driver core to check whether a Zorro device present in the
117 * system is in a driver's list of supported devices. Returns 1 if
118 * supported, and 0 if there is no match.
121 static int zorro_bus_match(struct device *dev, struct device_driver *drv)
123 struct zorro_dev *z = to_zorro_dev(dev);
124 struct zorro_driver *zorro_drv = to_zorro_driver(drv);
125 const struct zorro_device_id *ids = zorro_drv->id_table;
130 return !!zorro_match_device(ids, z);
133 static int zorro_uevent(const struct device *dev, struct kobj_uevent_env *env)
135 const struct zorro_dev *z;
140 z = to_zorro_dev(dev);
144 if (add_uevent_var(env, "ZORRO_ID=%08X", z->id) ||
145 add_uevent_var(env, "ZORRO_SLOT_NAME=%s", dev_name(dev)) ||
146 add_uevent_var(env, "ZORRO_SLOT_ADDR=%04X", z->slotaddr) ||
147 add_uevent_var(env, "MODALIAS=" ZORRO_DEVICE_MODALIAS_FMT, z->id))
153 struct bus_type zorro_bus_type = {
156 .dev_groups = zorro_device_attribute_groups,
157 .match = zorro_bus_match,
158 .uevent = zorro_uevent,
159 .probe = zorro_device_probe,
160 .remove = zorro_device_remove,
162 EXPORT_SYMBOL(zorro_bus_type);
165 static int __init zorro_driver_init(void)
167 return bus_register(&zorro_bus_type);
170 postcore_initcall(zorro_driver_init);