/* * 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 */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */