/*
|
* i2c-core.h - interfaces internal to the I2C framework
|
*
|
* This program is free software; you can redistribute it and/or modify
|
* it under the terms of the GNU General Public License as published by
|
* the Free Software Foundation; either version 2 of the License, or
|
* (at your option) any later version.
|
*
|
* This program is distributed in the hope that it will be useful,
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
* GNU General Public License for more details.
|
*/
|
|
#include <linux/rwsem.h>
|
|
struct i2c_devinfo {
|
struct list_head list;
|
int busnum;
|
struct i2c_board_info board_info;
|
};
|
|
/* board_lock protects board_list and first_dynamic_bus_num.
|
* only i2c core components are allowed to use these symbols.
|
*/
|
extern struct rw_semaphore __i2c_board_lock;
|
extern struct list_head __i2c_board_list;
|
extern int __i2c_first_dynamic_bus_num;
|
|
int i2c_check_7bit_addr_validity_strict(unsigned short addr);
|
|
#ifdef CONFIG_ACPI
|
const struct acpi_device_id *
|
i2c_acpi_match_device(const struct acpi_device_id *matches,
|
struct i2c_client *client);
|
void i2c_acpi_register_devices(struct i2c_adapter *adap);
|
#else /* CONFIG_ACPI */
|
static inline void i2c_acpi_register_devices(struct i2c_adapter *adap) { }
|
static inline const struct acpi_device_id *
|
i2c_acpi_match_device(const struct acpi_device_id *matches,
|
struct i2c_client *client)
|
{
|
return NULL;
|
}
|
#endif /* CONFIG_ACPI */
|
extern struct notifier_block i2c_acpi_notifier;
|
|
#ifdef CONFIG_ACPI_I2C_OPREGION
|
int i2c_acpi_install_space_handler(struct i2c_adapter *adapter);
|
void i2c_acpi_remove_space_handler(struct i2c_adapter *adapter);
|
#else /* CONFIG_ACPI_I2C_OPREGION */
|
static inline int i2c_acpi_install_space_handler(struct i2c_adapter *adapter) { return 0; }
|
static inline void i2c_acpi_remove_space_handler(struct i2c_adapter *adapter) { }
|
#endif /* CONFIG_ACPI_I2C_OPREGION */
|
|
#ifdef CONFIG_OF
|
void of_i2c_register_devices(struct i2c_adapter *adap);
|
#else
|
static inline void of_i2c_register_devices(struct i2c_adapter *adap) { }
|
#endif
|
extern struct notifier_block i2c_of_notifier;
|
