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drivertest/adc : support cmocka_driver_adc
Signed-off-by: xucheng5 <[email protected]>
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/**************************************************************************** | ||
* apps/testing/drivertest/drivertest_adc.c | ||
* | ||
* Licensed to the Apache Software Foundation (ASF) under one or more | ||
* contributor license agreements. See the NOTICE file distributed with | ||
* this work for additional information regarding copyright ownership. The | ||
* ASF licenses this file to you under the Apache License, Version 2.0 (the | ||
* "License"); you may not use this file except in compliance with the | ||
* License. You may obtain a copy of the License at | ||
* | ||
* http://www.apache.org/licenses/LICENSE-2.0 | ||
* | ||
* Unless required by applicable law or agreed to in writing, software | ||
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT | ||
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the | ||
* License for the specific language governing permissions and limitations | ||
* under the License. | ||
* | ||
****************************************************************************/ | ||
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/**************************************************************************** | ||
* Included Files | ||
****************************************************************************/ | ||
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#include <fcntl.h> | ||
#include <unistd.h> | ||
#include <stdarg.h> | ||
#include <stddef.h> | ||
#include <stdint.h> | ||
#include <setjmp.h> | ||
#include <stdio.h> | ||
#include <sys/ioctl.h> | ||
#include <sys/stat.h> | ||
#include <sys/types.h> | ||
#include <syslog.h> | ||
#include <sys/time.h> | ||
#include <stdlib.h> | ||
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#include <cmocka.h> | ||
#include <nuttx/analog/adc.h> | ||
#include <nuttx/analog/ioctl.h> | ||
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/**************************************************************************** | ||
* Pre-processor Definitions | ||
****************************************************************************/ | ||
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#define OPTARG_TO_VALUE(value, type, base) \ | ||
do { \ | ||
FAR char* ptr; \ | ||
value = (type)strtoul(optarg, &ptr, base); \ | ||
if (*ptr != '\0') { \ | ||
printf("Parameter error: -%c %s\n", ch, optarg); \ | ||
adc_help(argv[0]); \ | ||
} \ | ||
} while (0) | ||
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/**************************************************************************** | ||
* Private Function Prototypes | ||
****************************************************************************/ | ||
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struct adc_state_s | ||
{ | ||
char devpath[PATH_MAX]; /* device to adc device path */ | ||
int adc_diff; /* adc value difference */ | ||
int duration; /* duration of sampling adc in seconds */ | ||
bool soft_trigger; /* soft trigger : true or false */ | ||
}; | ||
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/**************************************************************************** | ||
* Private Functions | ||
****************************************************************************/ | ||
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static void adc_help(FAR char *process_name) | ||
{ | ||
printf("Usage: %s [OPTIONS]\n", process_name); | ||
printf(" -p adc device path , default : /dev/adc0\n"); | ||
printf(" -d sample adc changes over set-up value. default : 200\n"); | ||
printf(" -t duration of adc test [second] , default: 10s\n"); | ||
printf(" -m adc conversion method, 1 -- soft trigger, " | ||
"0 -- interrupt , default: 1\n"); | ||
exit(-1); | ||
} | ||
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/**************************************************************************** | ||
* Name: parse_commandline | ||
****************************************************************************/ | ||
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static void parse_commandline(FAR struct adc_state_s *adc_state, int argc, | ||
FAR char **argv) | ||
{ | ||
int ch; | ||
int converted; | ||
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while ((ch = getopt(argc, argv, "p:d:m:t:h")) != ERROR) | ||
{ | ||
switch (ch) | ||
{ | ||
case 'p': | ||
strlcpy(adc_state->devpath, optarg, sizeof(adc_state->devpath)); | ||
adc_state->devpath[sizeof(adc_state->devpath) - 1] = '\0'; | ||
break; | ||
case 'd': | ||
OPTARG_TO_VALUE(converted, int, 10); | ||
if (converted < 0 || converted > 5000) | ||
{ | ||
printf("sample adc value changes over: %d\n", converted); | ||
adc_help(argv[0]); | ||
} | ||
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adc_state->adc_diff = (uint8_t)converted; | ||
break; | ||
case 't': | ||
OPTARG_TO_VALUE(converted, int, 10); | ||
if (converted < 1 || converted > INT_MAX) | ||
{ | ||
printf("Duty out of range: %d\n", converted); | ||
adc_help(argv[0]); | ||
} | ||
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adc_state->duration = (int)converted; | ||
break; | ||
case 'm': | ||
OPTARG_TO_VALUE(converted, uint8_t, 10); | ||
adc_state->soft_trigger = converted ? true : false; | ||
break; | ||
case '?': | ||
printf("Unsupported option: %s\n", optarg); | ||
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case 'h': | ||
adc_help(argv[0]); | ||
break; | ||
} | ||
} | ||
} | ||
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int32_t adc_read_one_sample(int fd, bool soft_trigger) | ||
{ | ||
struct adc_msg_s sample; | ||
int ret; | ||
int nbytes; | ||
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/* software trigger to start one ADC conversion */ | ||
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if (soft_trigger) | ||
{ | ||
ret = ioctl(fd, ANIOC_TRIGGER, 0); | ||
assert_return_code(ret, OK); | ||
} | ||
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/* Read one samples */ | ||
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nbytes = read(fd, &sample, sizeof(struct adc_msg_s)); | ||
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/* Handle unexpected return values */ | ||
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assert_true(nbytes == sizeof(struct adc_msg_s)); | ||
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return sample.am_data; | ||
} | ||
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/**************************************************************************** | ||
* Name: test_case_adc | ||
****************************************************************************/ | ||
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static void test_case_adc(FAR void** state) | ||
{ | ||
int fd; | ||
bool succ = false; | ||
int32_t value1; | ||
int32_t value2; | ||
struct timeval tv1; | ||
struct timeval tv2; | ||
struct timeval res; | ||
FAR struct adc_state_s *adc_state; | ||
adc_state = (FAR struct adc_state_s *)*state; | ||
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/* Open the ADC device for reading */ | ||
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fd = open(adc_state->devpath, O_RDONLY); | ||
assert_true(fd > 0); | ||
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value1 = adc_read_one_sample(fd, adc_state->soft_trigger); | ||
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/* ADC sample value should be changed in duration [seconds] */ | ||
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gettimeofday(&tv1, NULL); | ||
while (true) | ||
{ | ||
value2 = adc_read_one_sample(fd, adc_state->soft_trigger); | ||
if (abs(value2 - value1) > adc_state->adc_diff) | ||
{ | ||
succ = true; | ||
break; | ||
} | ||
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gettimeofday(&tv2, NULL); | ||
timersub(&tv2, &tv1, &res); | ||
if (res.tv_sec >= adc_state->duration) | ||
{ | ||
printf("adc test timed out\n"); | ||
break; | ||
} | ||
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usleep(adc_state->soft_trigger ? 1000000 : 200000); | ||
} | ||
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close(fd); | ||
assert_true(succ); | ||
} | ||
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/**************************************************************************** | ||
* drivertest_adc_main | ||
****************************************************************************/ | ||
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int main(int argc, FAR char *argv[]) | ||
{ | ||
/* Initialize the state data */ | ||
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struct adc_state_s adc_state = { | ||
.devpath = "/dev/adc0", | ||
.adc_diff = 200, | ||
.duration = 10, | ||
.soft_trigger = true, | ||
}; | ||
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parse_commandline(&adc_state, argc, argv); | ||
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const struct CMUnitTest tests[] = { | ||
cmocka_unit_test_prestate(test_case_adc, &adc_state), | ||
}; | ||
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return cmocka_run_group_tests(tests, NULL, NULL); | ||
} |