nuttx-apps/system/i2c/i2c_bus.c

73 lines
2.8 KiB
C

/****************************************************************************
* apps/system/i2c/i2c_bus.c
*
* Copyright (C) 2011, 2016 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <nuttx/i2c/i2c_master.h>
#include "i2ctool.h"
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: i2ccmd_bus
****************************************************************************/
int i2ccmd_bus(FAR struct i2ctool_s *i2ctool, int argc, char **argv)
{
int bus;
i2ctool_printf(i2ctool, " BUS EXISTS?\n");
for (bus = CONFIG_I2CTOOL_MINBUS; bus <= CONFIG_I2CTOOL_MAXBUS; bus++)
{
if (i2cdev_exists(bus))
{
i2ctool_printf(i2ctool, "Bus %d: YES\n", bus);
}
else
{
i2ctool_printf(i2ctool, "Bus %d: NO\n", bus);
}
}
return OK;
}