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author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2011-09-18 17:52:00 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2011-09-18 17:52:00 +0000 |
commit | 0ce69264dbb1841b4093c04302c53ccfab02ca48 (patch) | |
tree | 1c324fbc0ad5b3bcbf28818660c322c026914789 /apps/system/i2c/i2c_verf.c | |
parent | fd34c2fa9d9d8faff68f5023e27246ac35954c70 (diff) | |
download | nuttx-0ce69264dbb1841b4093c04302c53ccfab02ca48.tar.gz nuttx-0ce69264dbb1841b4093c04302c53ccfab02ca48.tar.bz2 nuttx-0ce69264dbb1841b4093c04302c53ccfab02ca48.zip |
Add I2C trace capability; Fix another STM32 I2C/FSMC bug; add verify command to the I2C tool
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3961 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'apps/system/i2c/i2c_verf.c')
-rw-r--r-- | apps/system/i2c/i2c_verf.c | 249 |
1 files changed, 249 insertions, 0 deletions
diff --git a/apps/system/i2c/i2c_verf.c b/apps/system/i2c/i2c_verf.c new file mode 100644 index 000000000..0fa34b96e --- /dev/null +++ b/apps/system/i2c/i2c_verf.c @@ -0,0 +1,249 @@ +/**************************************************************************** + * apps/system/i2c/i2c_verf.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 <stdlib.h> + +#include <nuttx/i2c.h> + +#include "i2ctool.h" + +/**************************************************************************** + * Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Types + ****************************************************************************/ + +/**************************************************************************** + * Private Function Prototypes + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Public Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: i2ccmd_verf + ****************************************************************************/ + +int i2ccmd_verf(FAR struct i2ctool_s *i2ctool, int argc, FAR char **argv) +{ + FAR struct i2c_dev_s *dev; + FAR char *ptr; + uint16_t rdvalue; + uint8_t regaddr; + bool addrinaddr; + long wrvalue; + long repititions; + int nargs; + int argndx; + int ret; + int i; + + /* Parse any command line arguments */ + + for (argndx = 1; argndx < argc; ) + { + /* Break out of the look when the last option has been parsed */ + + ptr = argv[argndx]; + if (*ptr != '-') + { + break; + } + + /* Otherwise, check for common options */ + + nargs = common_args(i2ctool, &argv[argndx]); + if (nargs < 0) + { + return ERROR; + } + argndx += nargs; + } + + /* The options may be followed by the optional wrvalue to be written. If omitted, then + * the register address will be used as the wrvalue, providing an address-in-address + * test. + */ + + addrinaddr = true; + wrvalue = 0; + + if (argndx < argc) + { + wrvalue = strtol(argv[argndx], NULL, 16); + if (i2ctool->width == 8) + { + if (wrvalue < 0 || wrvalue > 255) + { + i2ctool_printf(i2ctool, g_i2cargrange, argv[0]); + return ERROR; + } + } + else if (wrvalue < 0 || wrvalue > 65535) + { + i2ctool_printf(i2ctool, g_i2cargrange, argv[0]); + return ERROR; + } + + addrinaddr = false; + argndx++; + } + + /* There may be one more thing on the command line: The repitition + * count. + */ + + repititions = 1; + if (argndx < argc) + { + repititions = strtol(argv[argndx], NULL, 16); + if (repititions < 1) + { + i2ctool_printf(i2ctool, g_i2cargrange, argv[0]); + return ERROR; + } + + argndx++; + } + + if (argndx != argc) + { + i2ctool_printf(i2ctool, g_i2ctoomanyargs, argv[0]); + return ERROR; + } + + /* Get a handle to the I2C bus */ + + dev = up_i2cinitialize(i2ctool->bus); + if (!dev) + { + i2ctool_printf(i2ctool, "Failed to get bus %d\n", i2ctool->bus); + return ERROR; + } + + /* Set the frequency and the address (NOTE: Only 7-bit address supported now) */ + + I2C_SETFREQUENCY(dev, i2ctool->freq); + I2C_SETADDRESS(dev, i2ctool->addr, 7); + + /* Loop for the requested number of repititions */ + + regaddr = i2ctool->regaddr; + ret = OK; + + for (i = 0; i < repititions; i++) + { + /* If we are performing an address-in-address test, then use the register + * address as the value to write. + */ + + if (addrinaddr) + { + wrvalue = regaddr; + } + + /* Write to the I2C bus */ + + ret = i2ctool_set(i2ctool, dev, regaddr, (uint16_t)wrvalue); + if (ret == OK) + { + /* Read the value back from the I2C bus */ + + ret = i2ctool_get(i2ctool, dev, regaddr, &rdvalue); + } + + /* Display the result */ + + if (ret == OK) + { + i2ctool_printf(i2ctool, "VERIFY Bus: %d Addr: %02x Subaddr: %02x Wrote: ", + i2ctool->bus, i2ctool->addr, i2ctool->regaddr); + + if (i2ctool->width == 8) + { + i2ctool_printf(i2ctool, "%02x Read: %02x", (int)wrvalue, (int)rdvalue); + } + else + { + i2ctool_printf(i2ctool, "%04x Read: %04x", (int)wrvalue, (int)rdvalue); + } + + if (wrvalue != rdvalue) + { + i2ctool_printf(i2ctool, " <<< FAILURE\n"); + } + else + { + i2ctool_printf(i2ctool, "\n"); + } + } + else + { + i2ctool_printf(i2ctool, g_i2cxfrerror, argv[0], -ret); + break; + } + + /* Auto-increment the address if so configured */ + + if (i2ctool->autoincr) + { + regaddr++; + } + } + + (void)up_i2cuninitialize(dev); + return ret; +} |