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/*
* Copyright (c) 2016 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef included_vlib_i2c_h
#define included_vlib_i2c_h
#include <vppinfra/types.h>
#define I2C_MSG_FLAG_WRITE 0
#define I2C_MSG_FLAG_READ 1
typedef struct {
u8 addr;
u8 flags;
u16 len;
u8 * buffer;
} i2c_msg_t;
typedef struct i2c_bus_t {
void (* put_bits) (struct i2c_bus_t * b, int scl, int sda);
void (* get_bits) (struct i2c_bus_t * b, int *scl, int *sda);
int timeout;
u32 clock;
f64 hold_time;
f64 rise_fall_time;
/* Private data */
uword private_data;
} i2c_bus_t;
void vlib_i2c_init (i2c_bus_t * bus);
void vlib_i2c_xfer (i2c_bus_t * bus, i2c_msg_t * msgs);
void vlib_i2c_read_eeprom (i2c_bus_t * bus, u8 i2c_addr, u16 start_addr, u16 length, u8 * data);
static inline int
vlib_i2c_bus_timed_out(i2c_bus_t * bus)
{
return bus->timeout;
}
#endif /* included_vlib_i2c_h */
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