i2c.h

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/*
 *  Copyright (c) 2014-2015 Andre Marques <andre.lousa.marques at gmail.com>
 *
 *  The license and distribution terms for this file may be
 *  found in the file LICENSE in this distribution or at
 *  http://www.rtems.org/license/LICENSE.
 */

#ifndef LIBBSP_ARM_RASPBERRYPI_I2C_H
#define LIBBSP_ARM_RASPBERRYPI_I2C_H

#include <dev/i2c/i2c.h>

#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */

#define BSC_CORE_CLK_HZ 150000000

#define DEFAULT_BUS_CLOCK 100000

extern void rpi_i2c_init(void);

extern int rpi_i2c_register_bus(
  const char *bus_path,
  uint32_t bus_clock
);

static inline int rpi_setup_i2c_bus(void)
{
  rpi_i2c_init();

  return rpi_i2c_register_bus("/dev/i2c", DEFAULT_BUS_CLOCK);
}

#ifdef __cplusplus
}
#endif /* __cplusplus */

#endif /* LIBBSP_ARM_RASPBERRYPI_I2C_H */