if (bytes % channels[i].bytes == 0)
channels[i].location = bytes;
else
- channels[i].location = bytes - bytes%channels[i].bytes
- + channels[i].bytes;
+ channels[i].location = bytes - bytes % channels[i].bytes
+ + channels[i].bytes;
+
bytes = channels[i].location + channels[i].bytes;
i++;
}
+
return bytes;
}
/**
* process_scan() - print out the values in SI units
* @data: pointer to the start of the scan
- * @channels: information about the channels. Note
- * size_from_channelarray must have been called first to fill the
- * location offsets.
+ * @channels: information about the channels.
+ * Note: size_from_channelarray must have been called first
+ * to fill the location offsets.
* @num_channels: number of channels
**/
void process_scan(char *data,
num_loops = strtoul(optarg, &dummy, 10);
if (errno)
return -errno;
+
break;
case 'e':
noevents = 1;
buf_len = strtoul(optarg, &dummy, 10);
if (errno)
return -errno;
+
break;
case 'n':
device_name = optarg;
printf("Failed to find the %s\n", device_name);
return dev_num;
}
+
printf("iio device number being used is %d\n", dev_num);
ret = asprintf(&dev_dir_name, "%siio:device%d", iio_dir, dev_num);
ret = trig_num;
goto error_free_triggername;
}
+
printf("iio trigger number being used is %d\n", trig_num);
- } else
+ } else {
printf("trigger-less mode selected\n");
+ }
/*
* Parse the files in scan_elements to identify what channels are
if (!notrigger) {
printf("%s %s\n", dev_dir_name, trigger_name);
- /* Set the device trigger to be the data ready trigger found
- * above */
+ /*
+ * Set the device trigger to be the data ready trigger found
+ * above
+ */
ret = write_sysfs_string_and_verify("trigger/current_trigger",
dev_dir_name,
trigger_name);
ret = write_sysfs_int("enable", buf_dir_name, 1);
if (ret < 0)
goto error_free_buf_dir_name;
+
scan_size = size_from_channelarray(channels, num_channels);
- data = malloc(scan_size*buf_len);
+ data = malloc(scan_size * buf_len);
if (!data) {
ret = -ENOMEM;
goto error_free_buf_dir_name;
/* Attempt to open non blocking the access dev */
fp = open(buffer_access, O_RDONLY | O_NONBLOCK);
- if (fp == -1) { /* If it isn't there make the node */
+ if (fp == -1) { /* TODO: If it isn't there make the node */
ret = -errno;
printf("Failed to open %s\n", buffer_access);
goto error_free_buffer_access;
}
- /* Wait for events 10 times */
for (j = 0; j < num_loops; j++) {
if (!noevents) {
struct pollfd pfd = {
}
toread = buf_len;
-
} else {
usleep(timedelay);
toread = 64;
}
- read_size = read(fp,
- data,
- toread*scan_size);
+ read_size = read(fp, data, toread * scan_size);
if (read_size < 0) {
if (errno == EAGAIN) {
printf("nothing available\n");
continue;
- } else
+ } else {
break;
+ }
}
- for (i = 0; i < read_size/scan_size; i++)
- process_scan(data + scan_size*i,
- channels,
+ for (i = 0; i < read_size / scan_size; i++)
+ process_scan(data + scan_size * i, channels,
num_channels);
}
error_close_buffer_access:
if (close(fp) == -1)
perror("Failed to close buffer");
+
error_free_buffer_access:
free(buffer_access);
error_free_data:
error_free_triggername:
if (datardytrigger)
free(trigger_name);
+
error_free_dev_dir_name:
free(dev_dir_name);
*
* Returns 0 on success, or a negative error code if string extraction failed.
**/
-int iioutils_break_up_name(const char *full_name,
- char **generic_name)
+int iioutils_break_up_name(const char *full_name, char **generic_name)
{
char *current;
char *w, *r;
*w = *r;
w++;
}
+
r++;
}
*w = '\0';
*
* Returns a value >= 0 on success, otherwise a negative error code.
**/
-int iioutils_get_type(unsigned *is_signed,
- unsigned *bytes,
- unsigned *bits_used,
- unsigned *shift,
- uint64_t *mask,
- unsigned *be,
- const char *device_dir,
- const char *name,
- const char *generic_name)
+int iioutils_get_type(unsigned *is_signed, unsigned *bytes, unsigned *bits_used,
+ unsigned *shift, uint64_t *mask, unsigned *be,
+ const char *device_dir, const char *name,
+ const char *generic_name)
{
FILE *sysfsfp;
int ret;
ret = -errno;
goto error_free_builtname_generic;
}
+
ret = -ENOENT;
while (ent = readdir(dp), ent != NULL)
/*
ret = -ENOMEM;
goto error_closedir;
}
+
sysfsfp = fopen(filename, "r");
if (sysfsfp == NULL) {
ret = -errno;
printf("scan type description didn't match\n");
goto error_close_sysfsfp;
}
+
*be = (endianchar == 'b');
*bytes = padint / 8;
if (*bits_used == 64)
*mask = ~0;
else
*mask = (1 << *bits_used) - 1;
+
*is_signed = (signchar == 's');
if (fclose(sysfsfp)) {
ret = -errno;
sysfsfp = 0;
free(filename);
-
filename = 0;
}
+
error_close_sysfsfp:
if (sysfsfp)
if (fclose(sysfsfp))
error_free_filename:
if (filename)
free(filename);
+
error_closedir:
if (closedir(dp) == -1)
perror("iioutils_get_type(): Failed to close directory");
*
* Returns a value >= 0 on success, otherwise a negative error code.
**/
-int iioutils_get_param_float(float *output,
- const char *param_name,
- const char *device_dir,
- const char *name,
- const char *generic_name)
+int iioutils_get_param_float(float *output, const char *param_name,
+ const char *device_dir, const char *name,
+ const char *generic_name)
{
FILE *sysfsfp;
int ret;
ret = -ENOMEM;
goto error_free_builtname;
}
+
dp = opendir(device_dir);
if (dp == NULL) {
ret = -errno;
goto error_free_builtname_generic;
}
+
ret = -ENOENT;
while (ent = readdir(dp), ent != NULL)
if ((strcmp(builtname, ent->d_name) == 0) ||
ret = -ENOMEM;
goto error_closedir;
}
+
sysfsfp = fopen(filename, "r");
if (!sysfsfp) {
ret = -errno;
goto error_free_filename;
}
+
errno = 0;
if (fscanf(sysfsfp, "%f", output) != 1)
ret = errno ? -errno : -ENODATA;
error_free_filename:
if (filename)
free(filename);
+
error_closedir:
if (closedir(dp) == -1)
perror("iioutils_get_param_float(): Failed to close directory");
* @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) {
+ 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;
* Returns 0 on success, otherwise a negative error code.
**/
int build_channel_array(const char *device_dir,
- struct iio_channel_info **ci_array,
- int *counter)
+ struct iio_channel_info **ci_array, int *counter)
{
DIR *dp;
FILE *sysfsfp;
ret = -errno;
goto error_free_name;
}
+
while (ent = readdir(dp), ent != NULL)
if (strcmp(ent->d_name + strlen(ent->d_name) - strlen("_en"),
"_en") == 0) {
ret = -ENOMEM;
goto error_close_dir;
}
+
sysfsfp = fopen(filename, "r");
if (sysfsfp == NULL) {
ret = -errno;
free(filename);
goto error_close_dir;
}
+
errno = 0;
if (fscanf(sysfsfp, "%i", &ret) != 1) {
ret = errno ? -errno : -ENODATA;
free(filename);
goto error_close_dir;
}
-
if (ret == 1)
(*counter)++;
+
if (fclose(sysfsfp)) {
ret = -errno;
free(filename);
free(filename);
}
+
*ci_array = malloc(sizeof(**ci_array) * (*counter));
if (*ci_array == NULL) {
ret = -ENOMEM;
goto error_close_dir;
}
+
seekdir(dp, 0);
while (ent = readdir(dp), ent != NULL) {
if (strcmp(ent->d_name + strlen(ent->d_name) - strlen("_en"),
count--;
goto error_cleanup_array;
}
+
sysfsfp = fopen(filename, "r");
if (sysfsfp == NULL) {
ret = -errno;
count--;
goto error_cleanup_array;
}
+
errno = 0;
if (fscanf(sysfsfp, "%i", ¤t_enabled) != 1) {
ret = errno ? -errno : -ENODATA;
count--;
goto error_cleanup_array;
}
+
/* Get the generic and specific name elements */
ret = iioutils_break_up_name(current->name,
¤t->generic_name);
count--;
goto error_cleanup_array;
}
+
ret = asprintf(&filename,
"%s/%s_index",
scan_el_dir,
ret = -ENOMEM;
goto error_cleanup_array;
}
+
sysfsfp = fopen(filename, "r");
if (sysfsfp == NULL) {
ret = -errno;
current->generic_name);
if (ret < 0)
goto error_cleanup_array;
+
ret = iioutils_get_param_float(¤t->offset,
"offset",
device_dir,
current->generic_name);
if (ret < 0)
goto error_cleanup_array;
+
ret = iioutils_get_type(¤t->is_signed,
¤t->bytes,
¤t->bits_used,
while (ent = readdir(dp), ent != NULL) {
if (strcmp(ent->d_name, ".") != 0 &&
- strcmp(ent->d_name, "..") != 0 &&
- strlen(ent->d_name) > strlen(type) &&
- strncmp(ent->d_name, type, strlen(type)) == 0) {
+ strcmp(ent->d_name, "..") != 0 &&
+ strlen(ent->d_name) > strlen(type) &&
+ strncmp(ent->d_name, type, strlen(type)) == 0) {
errno = 0;
ret = sscanf(ent->d_name + strlen(type), "%d", &number);
if (ret < 0) {
numstrlen = calc_digits(number);
/* verify the next character is not a colon */
if (strncmp(ent->d_name + strlen(type) + numstrlen,
- ":",
- 1) != 0) {
- filename = malloc(strlen(iio_dir)
- + strlen(type)
- + numstrlen
- + 6);
+ ":", 1) != 0) {
+ filename = malloc(strlen(iio_dir) + strlen(type)
+ + numstrlen + 6);
if (filename == NULL) {
ret = -ENOMEM;
goto error_close_dir;
free(filename);
continue;
}
+
free(filename);
errno = 0;
if (fscanf(nameFile, "%s", thisname) != 1) {
if (strcmp(name, thisname) == 0) {
if (closedir(dp) == -1)
return -errno;
+
return number;
}
}
error_close_dir:
if (closedir(dp) == -1)
perror("find_type_by_name(): Failed to close directory");
+
return ret;
}
if (temp == NULL)
return -ENOMEM;
+
ret = sprintf(temp, "%s/%s", basedir, filename);
if (ret < 0)
goto error_free;
printf("failed to open %s\n", temp);
goto error_free;
}
+
ret = fprintf(sysfsfp, "%d", val);
if (ret < 0) {
if (fclose(sysfsfp))
printf("failed to open %s\n", temp);
goto error_free;
}
+
if (fscanf(sysfsfp, "%d", &test) != 1) {
ret = errno ? -errno : -ENODATA;
if (fclose(sysfsfp))
}
if (test != val) {
- printf("Possible failure in int write %d to %s%s\n",
- val,
- basedir,
- filename);
+ printf("Possible failure in int write %d to %s/%s\n",
+ val, basedir, filename);
ret = -1;
}
}
+
error_free:
free(temp);
return ret;
printf("Memory allocation failed\n");
return -ENOMEM;
}
+
ret = sprintf(temp, "%s/%s", basedir, filename);
if (ret < 0)
goto error_free;
printf("Could not open %s\n", temp);
goto error_free;
}
+
ret = fprintf(sysfsfp, "%s", val);
if (ret < 0) {
if (fclose(sysfsfp))
sysfsfp = fopen(temp, "r");
if (sysfsfp == NULL) {
ret = -errno;
- printf("could not open file to verify\n");
+ printf("Could not open file to verify\n");
goto error_free;
}
+
if (fscanf(sysfsfp, "%s", temp) != 1) {
ret = errno ? -errno : -ENODATA;
if (fclose(sysfsfp))
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);
+ "Should be %s written to %s/%s\n", temp, val,
+ basedir, filename);
ret = -1;
}
}
+
error_free:
free(temp);
printf("Memory allocation failed");
return -ENOMEM;
}
+
ret = sprintf(temp, "%s/%s", basedir, filename);
if (ret < 0)
goto error_free;
ret = -errno;
goto error_free;
}
+
errno = 0;
if (fscanf(sysfsfp, "%d\n", &ret) != 1) {
ret = errno ? -errno : -ENODATA;
error_free:
free(temp);
+
return ret;
}
printf("Memory allocation failed");
return -ENOMEM;
}
+
ret = sprintf(temp, "%s/%s", basedir, filename);
if (ret < 0)
goto error_free;
ret = -errno;
goto error_free;
}
+
errno = 0;
if (fscanf(sysfsfp, "%f\n", val) != 1) {
ret = errno ? -errno : -ENODATA;
error_free:
free(temp);
+
return ret;
}
printf("Memory allocation failed");
return -ENOMEM;
}
+
ret = sprintf(temp, "%s/%s", basedir, filename);
if (ret < 0)
goto error_free;
ret = -errno;
goto error_free;
}
+
errno = 0;
if (fscanf(sysfsfp, "%s\n", str) != 1) {
ret = errno ? -errno : -ENODATA;
error_free:
free(temp);
+
return ret;
}
};
int iioutils_break_up_name(const char *full_name, char **generic_name);
-int iioutils_get_type(unsigned *is_signed, unsigned *bytes,
- unsigned *bits_used, unsigned *shift,
- uint64_t *mask, unsigned *be,
- const char *device_dir, const char *name,
- const char *generic_name);
+int iioutils_get_type(unsigned *is_signed, unsigned *bytes, unsigned *bits_used,
+ unsigned *shift, uint64_t *mask, unsigned *be,
+ const char *device_dir, const char *name,
+ const char *generic_name);
int iioutils_get_param_float(float *output, const char *param_name,
- const char *device_dir, const char *name,
- const char *generic_name);
+ const char *device_dir, const char *name,
+ const char *generic_name);
void bsort_channel_array_by_index(struct iio_channel_info **ci_array, int cnt);
int build_channel_array(const char *device_dir,
- struct iio_channel_info **ci_array, int *counter);
+ struct iio_channel_info **ci_array, int *counter);
int find_type_by_name(const char *name, const char *type);
int write_sysfs_int(const char *filename, const char *basedir, int val);
int write_sysfs_int_and_verify(const char *filename, const char *basedir,
#include <sys/dir.h>
#include "iio_utils.h"
-
static enum verbosity {
VERBLEVEL_DEFAULT, /* 0 gives lspci behaviour */
VERBLEVEL_SENSORS, /* 1 lists sensors */
const char *type_device = "iio:device";
const char *type_trigger = "trigger";
-
static inline int check_prefix(const char *str, const char *prefix)
{
return strlen(str) > strlen(prefix) &&
- strncmp(str, prefix, strlen(prefix)) == 0;
+ strncmp(str, prefix, strlen(prefix)) == 0;
}
static inline int check_postfix(const char *str, const char *postfix)
{
return strlen(str) > strlen(postfix) &&
- strcmp(str + strlen(str) - strlen(postfix), postfix) == 0;
+ strcmp(str + strlen(str) - strlen(postfix), postfix) == 0;
}
static int dump_channels(const char *dev_dir_name)
dp = opendir(dev_dir_name);
if (dp == NULL)
return -errno;
+
while (ent = readdir(dp), ent != NULL)
if (check_prefix(ent->d_name, "in_") &&
- check_postfix(ent->d_name, "_raw")) {
+ check_postfix(ent->d_name, "_raw"))
printf(" %-10s\n", ent->d_name);
- }
return (closedir(dp) == -1) ? -errno : 0;
}
"%i", &dev_idx);
if (retval != 1)
return -EINVAL;
+
retval = read_sysfs_string("name", dev_dir_name, name);
if (retval)
return retval;
if (verblevel >= VERBLEVEL_SENSORS)
return dump_channels(dev_dir_name);
+
return 0;
}
"%i", &dev_idx);
if (retval != 1)
return -EINVAL;
+
retval = read_sysfs_string("name", dev_dir_name, name);
if (retval)
return retval;
printf("Trigger %03d: %s\n", dev_idx, name);
+
return 0;
}
free(dev_dir_name);
}
}
+
return (closedir(dp) == -1) ? -errno : 0;
error_close_dir:
projects / platform / kernel / linux-rpi.git / commitdiff