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Release 4.10 drivers/dio/dio-driver.c

Directory: drivers/dio
/*
 *  DIO Driver Services
 *
 *  Copyright (C) 2004 Jochen Friedrich
 *
 *  Loosely based on drivers/pci/pci-driver.c and drivers/zorro/zorro-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/dio.h>


/**
 *  dio_match_device - Tell if a DIO device structure has a matching DIO device id structure
 *  @ids: array of DIO device id structures to search in
 *  @d: the DIO device structure to match against
 *
 *  Used by a driver to check whether a DIO device present in the
 *  system is in its list of supported devices. Returns the matching
 *  dio_device_id structure or %NULL if there is no match.
 */


const struct dio_device_id * dio_match_device(const struct dio_device_id *ids, const struct dio_dev *d) { while (ids->id) { if (ids->id == DIO_WILDCARD) return ids; if (DIO_NEEDSSECID(ids->id & 0xff)) { if (ids->id == d->id) return ids; } else { if ((ids->id & 0xff) == (d->id & 0xff)) return ids; } ids++; } return NULL; }

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geert uytterhoevengeert uytterhoeven95100.00%1100.00%
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static int dio_device_probe(struct device *dev) { int error = 0; struct dio_driver *drv = to_dio_driver(dev->driver); struct dio_dev *d = to_dio_dev(dev); if (!d->driver && drv->probe) { const struct dio_device_id *id; id = dio_match_device(drv->id_table, d); if (id) error = drv->probe(d, id); if (error >= 0) { d->driver = drv; error = 0; } } return error; }

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geert uytterhoevengeert uytterhoeven104100.00%1100.00%
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/** * dio_register_driver - register a new DIO driver * @drv: the driver structure to register * * Adds the driver structure to the list of registered drivers * Returns zero or a negative error value. */
int dio_register_driver(struct dio_driver *drv) { /* initialize common driver fields */ drv->driver.name = drv->name; drv->driver.bus = &dio_bus_type; /* register with core */ return driver_register(&drv->driver); }

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geert uytterhoevengeert uytterhoeven3997.50%150.00%
bjorn helgaasbjorn helgaas12.50%150.00%
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/** * dio_unregister_driver - unregister a DIO driver * @drv: the driver structure to unregister * * Deletes the driver structure from the list of registered DIO 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 dio_unregister_driver(struct dio_driver *drv) { driver_unregister(&drv->driver); }

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geert uytterhoevengeert uytterhoeven18100.00%1100.00%
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/** * dio_bus_match - Tell if a DIO device structure has a matching DIO device id structure * @dev: the DIO device structure to match against * @drv: the &device_driver that points to the array of DIO device id structures to search * * Used by a driver to check whether a DIO device present in the * system is in its list of supported devices. Returns the matching * dio_device_id structure or %NULL if there is no match. */
static int dio_bus_match(struct device *dev, struct device_driver *drv) { struct dio_dev *d = to_dio_dev(dev); struct dio_driver *dio_drv = to_dio_driver(drv); const struct dio_device_id *ids = dio_drv->id_table; if (!ids) return 0; return dio_match_device(ids, d) ? 1 : 0; }

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geert uytterhoevengeert uytterhoeven6192.42%150.00%
akinobu mitaakinobu mita57.58%150.00%
Total66100.00%2100.00%

struct bus_type dio_bus_type = { .name = "dio", .match = dio_bus_match, .probe = dio_device_probe, };
static int __init dio_driver_init(void) { return bus_register(&dio_bus_type); }

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geert uytterhoevengeert uytterhoeven16100.00%1100.00%
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postcore_initcall(dio_driver_init); EXPORT_SYMBOL(dio_match_device); EXPORT_SYMBOL(dio_register_driver); EXPORT_SYMBOL(dio_unregister_driver); EXPORT_SYMBOL(dio_bus_type);

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geert uytterhoevengeert uytterhoeven38395.99%120.00%
russell kingrussell king61.50%120.00%
akinobu mitaakinobu mita51.25%120.00%
randy dunlaprandy dunlap41.00%120.00%
bjorn helgaasbjorn helgaas10.25%120.00%
Total399100.00%5100.00%
Directory: drivers/dio
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