LXR linux/include/linux/ulpi/driver.h

   1#ifndef __LINUX_ULPI_DRIVER_H
   2#define __LINUX_ULPI_DRIVER_H
   3
   4#include <linux/mod_devicetable.h>
   5
   6#include <linux/device.h>
   7
   8struct ulpi_ops;
   9
  10/**
  11 * struct ulpi - describes ULPI PHY device
  12 * @id: vendor and product ids for ULPI device
  13 * @ops: I/O access
  14 * @dev: device interface
  15 */
  16struct ulpi {
  17        struct ulpi_device_id id;
  18        const struct ulpi_ops *ops;
  19        struct device dev;
  20};
  21
  22#define to_ulpi_dev(d) container_of(d, struct ulpi, dev)
  23
  24static inline void ulpi_set_drvdata(struct ulpi *ulpi, void *data)
  25{
  26        dev_set_drvdata(&ulpi->dev, data);
  27}
  28
  29static inline void *ulpi_get_drvdata(struct ulpi *ulpi)
  30{
  31        return dev_get_drvdata(&ulpi->dev);
  32}
  33
  34/**
  35 * struct ulpi_driver - describes a ULPI PHY driver
  36 * @id_table: array of device identifiers supported by this driver
  37 * @probe: binds this driver to ULPI device
  38 * @remove: unbinds this driver from ULPI device
  39 * @driver: the name and owner members must be initialized by the drivers
  40 */
  41struct ulpi_driver {
  42        const struct ulpi_device_id *id_table;
  43        int (*probe)(struct ulpi *ulpi);
  44        void (*remove)(struct ulpi *ulpi);
  45        struct device_driver driver;
  46};
  47
  48#define to_ulpi_driver(d) container_of(d, struct ulpi_driver, driver)
  49
  50/*
  51 * use a macro to avoid include chaining to get THIS_MODULE
  52 */
  53#define ulpi_register_driver(drv) __ulpi_register_driver(drv, THIS_MODULE)
  54int __ulpi_register_driver(struct ulpi_driver *drv, struct module *module);
  55void ulpi_unregister_driver(struct ulpi_driver *drv);
  56
  57#define module_ulpi_driver(__ulpi_driver) \
  58        module_driver(__ulpi_driver, ulpi_register_driver, \
  59                      ulpi_unregister_driver)
  60
  61int ulpi_read(struct ulpi *ulpi, u8 addr);
  62int ulpi_write(struct ulpi *ulpi, u8 addr, u8 val);
  63
  64#endif /* __LINUX_ULPI_DRIVER_H */
  65