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Diffstat (limited to 'tools/iio/iio_utils.c')
-rw-r--r--tools/iio/iio_utils.c136
1 files changed, 71 insertions, 65 deletions
diff --git a/tools/iio/iio_utils.c b/tools/iio/iio_utils.c
index 8fb3214..5eb6793 100644
--- a/tools/iio/iio_utils.c
+++ b/tools/iio/iio_utils.c
@@ -6,9 +6,6 @@
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*/
-#ifndef _IIO_UTILS_H
-#define _IIO_UTILS_H
-
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
@@ -39,7 +36,7 @@ int iioutils_break_up_name(const char *full_name, char **generic_name)
char *working, *prefix = "";
int i, ret;
- for (i = 0; i < sizeof(iio_direction) / sizeof(iio_direction[0]); i++)
+ for (i = 0; i < ARRAY_SIZE(iio_direction); i++)
if (!strncmp(full_name, iio_direction[i],
strlen(iio_direction[i]))) {
prefix = iio_direction[i];
@@ -117,13 +114,13 @@ int iioutils_get_type(unsigned *is_signed, unsigned *bytes, unsigned *bits_used,
}
dp = opendir(scan_el_dir);
- if (dp == NULL) {
+ if (!dp) {
ret = -errno;
goto error_free_builtname_generic;
}
ret = -ENOENT;
- while (ent = readdir(dp), ent != NULL)
+ while (ent = readdir(dp), ent)
/*
* Do we allow devices to override a generic name with
* a specific one?
@@ -138,9 +135,10 @@ int iioutils_get_type(unsigned *is_signed, unsigned *bytes, unsigned *bits_used,
}
sysfsfp = fopen(filename, "r");
- if (sysfsfp == NULL) {
+ if (!sysfsfp) {
ret = -errno;
- printf("failed to open %s\n", filename);
+ fprintf(stderr, "failed to open %s\n",
+ filename);
goto error_free_filename;
}
@@ -152,11 +150,13 @@ int iioutils_get_type(unsigned *is_signed, unsigned *bytes, unsigned *bits_used,
&padint, shift);
if (ret < 0) {
ret = -errno;
- printf("failed to pass scan type description\n");
+ fprintf(stderr,
+ "failed to pass scan type description\n");
goto error_close_sysfsfp;
} else if (ret != 5) {
ret = -EIO;
- printf("scan type description didn't match\n");
+ fprintf(stderr,
+ "scan type description didn't match\n");
goto error_close_sysfsfp;
}
@@ -165,12 +165,13 @@ int iioutils_get_type(unsigned *is_signed, unsigned *bytes, unsigned *bits_used,
if (*bits_used == 64)
*mask = ~0;
else
- *mask = (1 << *bits_used) - 1;
+ *mask = (1ULL << *bits_used) - 1;
*is_signed = (signchar == 's');
if (fclose(sysfsfp)) {
ret = -errno;
- printf("Failed to close %s\n", filename);
+ fprintf(stderr, "Failed to close %s\n",
+ filename);
goto error_free_filename;
}
@@ -235,13 +236,13 @@ int iioutils_get_param_float(float *output, const char *param_name,
}
dp = opendir(device_dir);
- if (dp == NULL) {
+ if (!dp) {
ret = -errno;
goto error_free_builtname_generic;
}
ret = -ENOENT;
- while (ent = readdir(dp), ent != NULL)
+ while (ent = readdir(dp), ent)
if ((strcmp(builtname, ent->d_name) == 0) ||
(strcmp(builtname_generic, ent->d_name) == 0)) {
ret = asprintf(&filename,
@@ -285,17 +286,17 @@ error_free_builtname:
* @cnt: the amount of array elements
**/
-void bsort_channel_array_by_index(struct iio_channel_info **ci_array, int cnt)
+void bsort_channel_array_by_index(struct iio_channel_info *ci_array, int cnt)
{
struct iio_channel_info temp;
int x, y;
for (x = 0; x < cnt; x++)
for (y = 0; y < (cnt - 1); y++)
- if ((*ci_array)[y].index > (*ci_array)[y + 1].index) {
- temp = (*ci_array)[y + 1];
- (*ci_array)[y + 1] = (*ci_array)[y];
- (*ci_array)[y] = temp;
+ if (ci_array[y].index > ci_array[y + 1].index) {
+ temp = ci_array[y + 1];
+ ci_array[y + 1] = ci_array[y];
+ ci_array[y] = temp;
}
}
@@ -325,12 +326,12 @@ int build_channel_array(const char *device_dir,
return -ENOMEM;
dp = opendir(scan_el_dir);
- if (dp == NULL) {
+ if (!dp) {
ret = -errno;
goto error_free_name;
}
- while (ent = readdir(dp), ent != NULL)
+ while (ent = readdir(dp), ent)
if (strcmp(ent->d_name + strlen(ent->d_name) - strlen("_en"),
"_en") == 0) {
ret = asprintf(&filename,
@@ -341,7 +342,7 @@ int build_channel_array(const char *device_dir,
}
sysfsfp = fopen(filename, "r");
- if (sysfsfp == NULL) {
+ if (!sysfsfp) {
ret = -errno;
free(filename);
goto error_close_dir;
@@ -369,13 +370,13 @@ int build_channel_array(const char *device_dir,
}
*ci_array = malloc(sizeof(**ci_array) * (*counter));
- if (*ci_array == NULL) {
+ if (!*ci_array) {
ret = -ENOMEM;
goto error_close_dir;
}
seekdir(dp, 0);
- while (ent = readdir(dp), ent != NULL) {
+ while (ent = readdir(dp), ent) {
if (strcmp(ent->d_name + strlen(ent->d_name) - strlen("_en"),
"_en") == 0) {
int current_enabled = 0;
@@ -391,7 +392,7 @@ int build_channel_array(const char *device_dir,
}
sysfsfp = fopen(filename, "r");
- if (sysfsfp == NULL) {
+ if (!sysfsfp) {
ret = -errno;
free(filename);
count--;
@@ -424,7 +425,7 @@ int build_channel_array(const char *device_dir,
current->name = strndup(ent->d_name,
strlen(ent->d_name) -
strlen("_en"));
- if (current->name == NULL) {
+ if (!current->name) {
free(filename);
ret = -ENOMEM;
count--;
@@ -452,9 +453,10 @@ int build_channel_array(const char *device_dir,
}
sysfsfp = fopen(filename, "r");
- if (sysfsfp == NULL) {
+ if (!sysfsfp) {
ret = -errno;
- printf("failed to open %s\n", filename);
+ fprintf(stderr, "failed to open %s\n",
+ filename);
free(filename);
goto error_cleanup_array;
}
@@ -482,7 +484,7 @@ int build_channel_array(const char *device_dir,
device_dir,
current->name,
current->generic_name);
- if (ret < 0)
+ if ((ret < 0) && (ret != -ENOENT))
goto error_cleanup_array;
ret = iioutils_get_param_float(&current->offset,
@@ -490,7 +492,7 @@ int build_channel_array(const char *device_dir,
device_dir,
current->name,
current->generic_name);
- if (ret < 0)
+ if ((ret < 0) && (ret != -ENOENT))
goto error_cleanup_array;
ret = iioutils_get_type(&current->is_signed,
@@ -514,7 +516,7 @@ int build_channel_array(const char *device_dir,
free(scan_el_dir);
/* reorder so that the array is in index order */
- bsort_channel_array_by_index(ci_array, *counter);
+ bsort_channel_array_by_index(*ci_array, *counter);
return 0;
@@ -524,6 +526,8 @@ error_cleanup_array:
free((*ci_array)[i].generic_name);
}
free(*ci_array);
+ *ci_array = NULL;
+ *counter = 0;
error_close_dir:
if (dp)
if (closedir(dp) == -1)
@@ -535,7 +539,7 @@ error_free_name:
return ret;
}
-int calc_digits(int num)
+static int calc_digits(int num)
{
int count = 0;
@@ -567,12 +571,12 @@ int find_type_by_name(const char *name, const char *type)
char *filename;
dp = opendir(iio_dir);
- if (dp == NULL) {
- printf("No industrialio devices available\n");
+ if (!dp) {
+ fprintf(stderr, "No industrialio devices available\n");
return -ENODEV;
}
- while (ent = readdir(dp), ent != NULL) {
+ while (ent = readdir(dp), ent) {
if (strcmp(ent->d_name, ".") != 0 &&
strcmp(ent->d_name, "..") != 0 &&
strlen(ent->d_name) > strlen(type) &&
@@ -581,11 +585,13 @@ int find_type_by_name(const char *name, const char *type)
ret = sscanf(ent->d_name + strlen(type), "%d", &number);
if (ret < 0) {
ret = -errno;
- printf("failed to read element number\n");
+ fprintf(stderr,
+ "failed to read element number\n");
goto error_close_dir;
} else if (ret != 1) {
ret = -EIO;
- printf("failed to match element number\n");
+ fprintf(stderr,
+ "failed to match element number\n");
goto error_close_dir;
}
@@ -595,7 +601,7 @@ int find_type_by_name(const char *name, const char *type)
":", 1) != 0) {
filename = malloc(strlen(iio_dir) + strlen(type)
+ numstrlen + 6);
- if (filename == NULL) {
+ if (!filename) {
ret = -ENOMEM;
goto error_close_dir;
}
@@ -654,7 +660,7 @@ static int _write_sysfs_int(const char *filename, const char *basedir, int val,
int test;
char *temp = malloc(strlen(basedir) + strlen(filename) + 2);
- if (temp == NULL)
+ if (!temp)
return -ENOMEM;
ret = sprintf(temp, "%s/%s", basedir, filename);
@@ -662,9 +668,9 @@ static int _write_sysfs_int(const char *filename, const char *basedir, int val,
goto error_free;
sysfsfp = fopen(temp, "w");
- if (sysfsfp == NULL) {
+ if (!sysfsfp) {
ret = -errno;
- printf("failed to open %s\n", temp);
+ fprintf(stderr, "failed to open %s\n", temp);
goto error_free;
}
@@ -683,9 +689,9 @@ static int _write_sysfs_int(const char *filename, const char *basedir, int val,
if (verify) {
sysfsfp = fopen(temp, "r");
- if (sysfsfp == NULL) {
+ if (!sysfsfp) {
ret = -errno;
- printf("failed to open %s\n", temp);
+ fprintf(stderr, "failed to open %s\n", temp);
goto error_free;
}
@@ -703,8 +709,9 @@ static int _write_sysfs_int(const char *filename, const char *basedir, int val,
}
if (test != val) {
- printf("Possible failure in int write %d to %s/%s\n",
- val, basedir, filename);
+ fprintf(stderr,
+ "Possible failure in int write %d to %s/%s\n",
+ val, basedir, filename);
ret = -1;
}
}
@@ -749,8 +756,8 @@ static int _write_sysfs_string(const char *filename, const char *basedir,
FILE *sysfsfp;
char *temp = malloc(strlen(basedir) + strlen(filename) + 2);
- if (temp == NULL) {
- printf("Memory allocation failed\n");
+ if (!temp) {
+ fprintf(stderr, "Memory allocation failed\n");
return -ENOMEM;
}
@@ -759,9 +766,9 @@ static int _write_sysfs_string(const char *filename, const char *basedir,
goto error_free;
sysfsfp = fopen(temp, "w");
- if (sysfsfp == NULL) {
+ if (!sysfsfp) {
ret = -errno;
- printf("Could not open %s\n", temp);
+ fprintf(stderr, "Could not open %s\n", temp);
goto error_free;
}
@@ -780,9 +787,9 @@ static int _write_sysfs_string(const char *filename, const char *basedir,
if (verify) {
sysfsfp = fopen(temp, "r");
- if (sysfsfp == NULL) {
+ if (!sysfsfp) {
ret = -errno;
- printf("Could not open file to verify\n");
+ fprintf(stderr, "Could not open file to verify\n");
goto error_free;
}
@@ -800,9 +807,10 @@ static int _write_sysfs_string(const char *filename, const char *basedir,
}
if (strcmp(temp, val) != 0) {
- printf("Possible failure in string write of %s "
- "Should be %s written to %s/%s\n", temp, val,
- basedir, filename);
+ fprintf(stderr,
+ "Possible failure in string write of %s "
+ "Should be %s written to %s/%s\n", temp, val,
+ basedir, filename);
ret = -1;
}
}
@@ -855,8 +863,8 @@ int read_sysfs_posint(const char *filename, const char *basedir)
FILE *sysfsfp;
char *temp = malloc(strlen(basedir) + strlen(filename) + 2);
- if (temp == NULL) {
- printf("Memory allocation failed");
+ if (!temp) {
+ fprintf(stderr, "Memory allocation failed");
return -ENOMEM;
}
@@ -865,7 +873,7 @@ int read_sysfs_posint(const char *filename, const char *basedir)
goto error_free;
sysfsfp = fopen(temp, "r");
- if (sysfsfp == NULL) {
+ if (!sysfsfp) {
ret = -errno;
goto error_free;
}
@@ -902,8 +910,8 @@ int read_sysfs_float(const char *filename, const char *basedir, float *val)
FILE *sysfsfp;
char *temp = malloc(strlen(basedir) + strlen(filename) + 2);
- if (temp == NULL) {
- printf("Memory allocation failed");
+ if (!temp) {
+ fprintf(stderr, "Memory allocation failed");
return -ENOMEM;
}
@@ -912,7 +920,7 @@ int read_sysfs_float(const char *filename, const char *basedir, float *val)
goto error_free;
sysfsfp = fopen(temp, "r");
- if (sysfsfp == NULL) {
+ if (!sysfsfp) {
ret = -errno;
goto error_free;
}
@@ -949,8 +957,8 @@ int read_sysfs_string(const char *filename, const char *basedir, char *str)
FILE *sysfsfp;
char *temp = malloc(strlen(basedir) + strlen(filename) + 2);
- if (temp == NULL) {
- printf("Memory allocation failed");
+ if (!temp) {
+ fprintf(stderr, "Memory allocation failed");
return -ENOMEM;
}
@@ -959,7 +967,7 @@ int read_sysfs_string(const char *filename, const char *basedir, char *str)
goto error_free;
sysfsfp = fopen(temp, "r");
- if (sysfsfp == NULL) {
+ if (!sysfsfp) {
ret = -errno;
goto error_free;
}
@@ -981,5 +989,3 @@ error_free:
return ret;
}
-
-#endif /* _IIO_UTILS_H */
generated by cgit v0.10.2 at 2024-07-24 18:00:38 (GMT)