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Diffstat (limited to 'apps/system/i2c/i2c_bus.c')
-rw-r--r-- | apps/system/i2c/i2c_bus.c | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/apps/system/i2c/i2c_bus.c b/apps/system/i2c/i2c_bus.c new file mode 100644 index 000000000..07e6d2da3 --- /dev/null +++ b/apps/system/i2c/i2c_bus.c @@ -0,0 +1,99 @@ +/**************************************************************************** + * apps/system/i2c/i2c_bus.c + * + * Copyright (C) 2011 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <spudmonkey@racsa.co.cr> + * + * 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.h> + +#include "i2ctool.h" + +/**************************************************************************** + * Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Types + ****************************************************************************/ + +/**************************************************************************** + * Private Function Prototypes + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Public Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: i2ccmd_bus + ****************************************************************************/ + +int i2ccmd_bus(FAR struct i2ctool_s *i2ctool, int argc, char **argv) +{ + FAR struct i2c_dev_s *dev; + int i; + + i2ctool_printf(i2ctool, " BUS EXISTS?\n"); + for (i = CONFIG_I2CTOOL_MINBUS; i <= CONFIG_I2CTOOL_MAXBUS; i++) + { + dev = up_i2cinitialize(i); + if (dev) + { + i2ctool_printf(i2ctool, "Bus %d: YES\n", i); + (void)up_i2cuninitialize(dev); + } + else + { + i2ctool_printf(i2ctool, "Bus %d: NO\n", i); + } + } + + return OK; +} |