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
   8 struct 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  */
  16 struct 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
  24 static inline void ulpi_set_drvdata(struct ulpi *ulpi, void *data)
  25 {
  26         dev_set_drvdata(&ulpi->dev, data);
  27 }
  28
  29 static 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  */
  41 struct 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)
  54 int __ulpi_register_driver(struct ulpi_driver *drv, struct module *module);
  55 void 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
  61 int ulpi_read(struct ulpi *ulpi, u8 addr);
  62 int ulpi_write(struct ulpi *ulpi, u8 addr, u8 val);
  63
  64 #endif /* __LINUX_ULPI_DRIVER_H */