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/*
* Google LWIS I2C Interface
*
* Copyright (c) 2018 Google, LLC
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef LWIS_I2C_H_
#define LWIS_I2C_H_
#include <linux/i2c.h>
#include <linux/pinctrl/consumer.h>
#include "lwis_commands.h"
#include "lwis_device_i2c.h"
#define I2C_STATE_OFF_STRING "off_i2c"
#define I2C_STATE_ON_STRING "on_i2c"
/*
* lwis_i2c_set_state: Enable or disable the i2c device.
* NOTE: state_str must match the pinctrl-names defined in the i2c driver.
* Pinctrl states can be found in the device tree, look for the i2c entry and
* the state names are defined under "pinctrl-names". Their corresponding
* functions are defined under "pinctrl-N".
*/
int lwis_i2c_set_state(struct lwis_i2c_device *i2c, const char *state_str);
/*
* lwis_i2c_io_entry_rw: Read/Write from i2c bus via io_entry request.
* The readback values will be stored in the entry.
*/
int lwis_i2c_io_entry_rw(struct lwis_i2c_device *i2c, struct lwis_io_entry *entry);
#endif /* LWIS_I2C_H_ */
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