/****************************************************************************
* px4/sensors/test_gpio.c
*
* 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 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/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_adc(int argc, char *argv[])
{
int fd0;
int ret = 0;
//struct adc_msg_s sample[4],sample2[4],sample3[4],sample4[4],sample5[4],sample6[4],sample7[4],sample8[4],sample9[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], sample2[4];
size_t readsize;
ssize_t nbytes, nbytes2;
int i;
int j;
int errval;
for (j = 0; j < 1; j++) {
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);
}
/* first adc read round */
readsize = 4 * sizeof(struct adc_msg_s);
up_udelay(10000);//microseconds
nbytes = read(fd0, sample1, readsize);
up_udelay(10000);//microseconds
nbytes2 = read(fd0, sample2, readsize);
// nbytes2 = read(fd0, sample3, readsize);
// nbytes2 = read(fd0, sample4, readsize);
// nbytes2 = read(fd0, sample5, readsize);
// nbytes2 = read(fd0, sample6, readsize);
// nbytes2 = read(fd0, sample7, readsize);
// nbytes2 = read(fd0, sample8, readsize);
//nbytes2 = read(fd0, sample9, 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 {
message("Sample:");
for (i = 0; i < 1 ; i++) {
message("%d: channel: %d value: %d\n",
i, sample1[i].am_channel1, sample1[i].am_data1);
message("Sample:");
message("%d: channel: %d value: %d\n",
i, sample1[i].am_channel2, sample1[i].am_data2);
message("Sample:");
message("%d: channel: %d value: %d\n",
i, sample1[i].am_channel3, sample1[i].am_data3);
message("Sample:");
message("%d: channel: %d value: %d\n",
i, sample1[i].am_channel4, sample1[i].am_data4);
message("Sample:");
message("%d: channel: %d value: %d\n",
i + 1, sample2[i].am_channel1, sample2[i].am_data1);
message("Sample:");
message("%d: channel: %d value: %d\n",
i + 1, sample2[i].am_channel2, sample2[i].am_data2);
message("Sample:");
message("%d: channel: %d value: %d\n",
i + 1, sample2[i].am_channel3, sample2[i].am_data3);
message("Sample:");
message("%d: channel: %d value: %d\n",
i + 1, sample2[i].am_channel4, sample2[i].am_data4);
// message("%d: channel: %d value: %d\n",
// i, sample9[i].am_channel, sample9[i].am_data);
}
}
}
}
printf("\t ADC test successful.\n");
errout_with_dev:
if (fd0 != 0) close(fd0);
return ret;
}
