src/main/drivers/bus_busdev_i2c.c

   1 /*
   2  * This file is part of Cleanflight.
   3  *
   4  * Cleanflight is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * Cleanflight is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with Cleanflight.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 #include <stdbool.h>
  19 #include <stdint.h>
  20 #include <string.h>
  21
  22 #include <platform.h>
  23
  24 #if defined(USE_I2C)
  25
  26 #if !defined(UNUSED)
  27 #define UNUSED(x) ((void)(x))
  28 #endif
  29
  30 #include "drivers/bus.h"
  31 #include "drivers/bus_i2c.h"
  32
  33 bool i2cBusWriteBuffer(const busDevice_t * dev, uint8_t reg, const uint8_t * data, uint8_t length)
  34 {
  35     const bool allowRawAccess = (dev->flags & DEVFLAGS_USE_RAW_REGISTERS);
  36     return i2cWriteBuffer(dev->busdev.i2c.i2cBus, dev->busdev.i2c.address, reg, length, data, allowRawAccess);
  37 }
  38
  39 bool i2cBusWriteRegister(const busDevice_t * dev, uint8_t reg, uint8_t data)
  40 {
  41     const bool allowRawAccess = (dev->flags & DEVFLAGS_USE_RAW_REGISTERS);
  42     return i2cWrite(dev->busdev.i2c.i2cBus, dev->busdev.i2c.address, reg, data, allowRawAccess);
  43 }
  44
  45 bool i2cBusReadBuffer(const busDevice_t * dev, uint8_t reg, uint8_t * data, uint8_t length)
  46 {
  47     const bool allowRawAccess = (dev->flags & DEVFLAGS_USE_RAW_REGISTERS);
  48     return i2cRead(dev->busdev.i2c.i2cBus, dev->busdev.i2c.address, reg, length, data, allowRawAccess);
  49 }
  50
  51 bool i2cBusReadRegister(const busDevice_t * dev, uint8_t reg, uint8_t * data)
  52 {
  53     const bool allowRawAccess = (dev->flags & DEVFLAGS_USE_RAW_REGISTERS);
  54     return i2cRead(dev->busdev.i2c.i2cBus, dev->busdev.i2c.address, reg, 1, data, allowRawAccess);
  55 }
  56 bool i2cBusBusy(const busDevice_t *dev, bool *error)
  57 {
  58 #if defined(AT32F43x)
  59     return i2cBusy(dev->busdev.i2c.i2cBus, error);
  60 #endif
  61     UNUSED(dev);
  62     UNUSED(error);
  63     return false;
  64 }
  65 #endif