use core::I2CDevice;
use std::io;
pub type I2CResult<T> = io::Result<T>;
pub struct I2CRegisterMap {
registers: [u8; 0xFF],
offset: usize,
}
impl I2CRegisterMap {
pub fn new() -> I2CRegisterMap {
I2CRegisterMap {
registers: [0x00; 0xFF],
offset: 0,
}
}
pub fn write_regs(&mut self, offset: usize, data: &[u8]) {
println!("WRITE | 0x{:X} : {:?}", offset, data);
for i in 0..data.len() {
self.registers[offset + i] = data[i];
}
}
}
impl I2CRegisterMap {
fn read(&mut self, data: &mut [u8]) -> I2CResult<()> {
for i in 0..data.len() {
data[i] = self.registers[self.offset];
self.offset += 1;
}
println!("READ | 0x{:X} : {:?}", self.offset - data.len(), data);
Ok(())
}
fn write(&mut self, data: &[u8]) -> I2CResult<()> {
let offset = data[0] as usize;
let remdata = &data[1..];
self.write_regs(offset, remdata);
self.offset = offset + remdata.len();
Ok(())
}
}
pub struct MockI2CDevice {
pub regmap: I2CRegisterMap,
}
impl MockI2CDevice {
pub fn new() -> MockI2CDevice {
MockI2CDevice { regmap: I2CRegisterMap::new() }
}
}
impl I2CDevice for MockI2CDevice {
type Error = io::Error;
fn read(&mut self, data: &mut [u8]) -> I2CResult<()> {
self.regmap.read(data)
}
fn write(&mut self, data: &[u8]) -> I2CResult<()> {
self.regmap.write(data)
}
fn smbus_write_quick(&mut self, _bit: bool) -> I2CResult<()> {
unimplemented!()
}
fn smbus_read_block_data(&mut self, _register: u8) -> I2CResult<Vec<u8>> {
unimplemented!()
}
fn smbus_write_block_data(&mut self, _register: u8, _values: &[u8]) -> I2CResult<()> {
unimplemented!()
}
fn smbus_process_block(&mut self, _register: u8, _values: &[u8]) -> I2CResult<Vec<u8>> {
unimplemented!()
}
fn smbus_read_i2c_block_data(&mut self, _register: u8, _len: u8) -> I2CResult<Vec<u8>> {
unimplemented!()
}
fn smbus_write_i2c_block_data(&mut self, _register: u8, _values: &[u8]) -> I2CResult<()> {
unimplemented!()
}
}