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/****************************************************************************
*
* Copyright (C) 2012 PX4 Development Team. All rights reserved.
*
* 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 PX4 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/arch.h>
#include <sys/types.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <debug.h>
#include <nuttx/spi.h>
#include "tests.h"
#include <nuttx/analog/adc.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Types
****************************************************************************/
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Public Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: test_gpio
****************************************************************************/
int test_jig_voltages(int argc, char *argv[])
{
int fd0 = 0;
int ret = OK;
const int nchannels = 4;
struct adc_msg4_s
{
uint8_t am_channel1; /* The 8-bit ADC Channel */
int32_t am_data1; /* ADC convert result (4 bytes) */
uint8_t am_channel2; /* The 8-bit ADC Channel */
int32_t am_data2; /* ADC convert result (4 bytes) */
uint8_t am_channel3; /* The 8-bit ADC Channel */
int32_t am_data3; /* ADC convert result (4 bytes) */
uint8_t am_channel4; /* The 8-bit ADC Channel */
int32_t am_data4; /* ADC convert result (4 bytes) */
}__attribute__((__packed__));;
struct adc_msg4_s sample1[4];
size_t readsize;
ssize_t nbytes;
int i = 0;
int j = 0;
int errval;
char name[11];
sprintf(name, "/dev/adc%d", j);
fd0 = open(name, O_RDONLY | O_NONBLOCK);
if (fd0 < 0)
{
printf("ADC: %s open fail\n", name);
return ERROR;
} else {
printf("Opened %s successfully\n", name);
}
/* Expected values */
int16_t expected_min[] = {2700, 2700, 2200, 2000};
int16_t expected_max[] = {3000, 3000, 2500, 2200};
char* check_res[nchannels];
/* first adc read round */
readsize = 4 * sizeof(struct adc_msg_s);
/* Empty all buffers */
do {
nbytes = read(fd0, sample1, readsize);
}
while (nbytes > 0);
up_udelay(20000);//microseconds
/* Take measurements */
nbytes = read(fd0, sample1, readsize);
/* Handle unexpected return values */
if (nbytes <= 0)
{
errval = errno;
if (errval != EINTR)
{
message("read %s failed: %d\n",
name, errval);
errval = 3;
goto errout_with_dev;
}
message("\tInterrupted read...\n");
}
else if (nbytes == 0)
{
message("\tNo data read, Ignoring\n");
}
/* Print the sample data on successful return */
else
{
int nsamples = nbytes / sizeof(struct adc_msg_s);
if (nsamples * sizeof(struct adc_msg_s) != nbytes)
{
message("\tread size=%d is not a multiple of sample size=%d, Ignoring\n",
nbytes, sizeof(struct adc_msg_s));
}
else
{
/* Check values */
check_res[0] = (expected_min[0] < sample1[i].am_data1 && expected_max[0] > sample1[i].am_data1) ? "OK" : "FAIL";
check_res[1] = (expected_min[1] < sample1[i].am_data2 && expected_max[1] > sample1[i].am_data2) ? "OK" : "FAIL";
check_res[2] = (expected_min[2] < sample1[i].am_data3 && expected_max[2] > sample1[i].am_data3) ? "OK" : "FAIL";
check_res[3] = (expected_min[3] < sample1[i].am_data4 && expected_max[3] > sample1[i].am_data4) ? "OK" : "FAIL";
/* Accumulate result */
ret += (expected_min[0] > sample1[i].am_data1 || expected_max[0] < sample1[i].am_data1) ? 1 : 0;
// XXX Chan 11 not connected on test setup
//ret += (expected_min[1] > sample1[i].am_data2 || expected_max[1] < sample1[i].am_data2) ? 1 : 0;
ret += (expected_min[2] > sample1[i].am_data3 || expected_max[2] < sample1[i].am_data3) ? 1 : 0;
ret += (expected_min[3] > sample1[i].am_data4 || expected_max[3] < sample1[i].am_data4) ? 1 : 0;
message("Sample:");
message("%d: channel: %d value: %d (allowed min: %d, allowed max: %d), result: %s\n",
i, sample1[i].am_channel1, sample1[i].am_data1, expected_min[0], expected_max[0], check_res[0]);
message("Sample:");
message("%d: channel: %d value: %d (allowed min: %d, allowed max: %d), result: %s\n",
i, sample1[i].am_channel2, sample1[i].am_data2, expected_min[1], expected_max[1], check_res[1]);
message("Sample:");
message("%d: channel: %d value: %d (allowed min: %d, allowed max: %d), result: %s\n",
i, sample1[i].am_channel3, sample1[i].am_data3, expected_min[2], expected_max[2], check_res[2]);
message("Sample:");
message("%d: channel: %d value: %d (allowed min: %d, allowed max: %d), result: %s\n",
i, sample1[i].am_channel4, sample1[i].am_data4, expected_min[3], expected_max[3], check_res[3]);
if (ret != OK) {
printf("\t ADC test FAILED. Some channels where out of allowed range. Check supply voltages.\n");
goto errout_with_dev;
}
}
}
printf("\t ADC test successful.\n");
errout_with_dev:
if (fd0 != 0) close(fd0);
return ret;
}
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