From 7663a4aac625268674060d78ee00f97a36a03af7 Mon Sep 17 00:00:00 2001 From: Hartmut Knaack Date: Wed, 10 Jun 2015 21:51:20 +0200 Subject: tools:iio: adjust coding style Fix various coding style issues, including: * have spaces around operators * indentation * consolidate parameters in same line * required braces * adjust/drop comments * multiline comment style * delete unnecessary empty lines * add empty lines to visualize logial code blocks * typos Signed-off-by: Hartmut Knaack Signed-off-by: Jonathan Cameron --- tools/iio/generic_buffer.c | 46 +++++++++-------- tools/iio/iio_event_monitor.c | 13 +++-- tools/iio/iio_utils.c | 111 +++++++++++++++++++++++++----------------- tools/iio/iio_utils.h | 15 +++--- tools/iio/lsiio.c | 15 +++--- 5 files changed, 118 insertions(+), 82 deletions(-) (limited to 'tools/iio') diff --git a/tools/iio/generic_buffer.c b/tools/iio/generic_buffer.c index 4eebb6616e5c..fc362d2ff983 100644 --- a/tools/iio/generic_buffer.c +++ b/tools/iio/generic_buffer.c @@ -51,11 +51,13 @@ int size_from_channelarray(struct iio_channel_info *channels, int num_channels) 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; } @@ -136,9 +138,9 @@ void print8byte(uint64_t input, struct iio_channel_info *info) /** * 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, @@ -213,6 +215,7 @@ int main(int argc, char **argv) num_loops = strtoul(optarg, &dummy, 10); if (errno) return -errno; + break; case 'e': noevents = 1; @@ -225,6 +228,7 @@ int main(int argc, char **argv) buf_len = strtoul(optarg, &dummy, 10); if (errno) return -errno; + break; case 'n': device_name = optarg; @@ -257,6 +261,7 @@ int main(int argc, char **argv) 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); @@ -285,9 +290,11 @@ int main(int argc, char **argv) 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 @@ -314,8 +321,10 @@ int main(int argc, char **argv) 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); @@ -334,8 +343,9 @@ int main(int argc, char **argv) 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; @@ -349,13 +359,12 @@ int main(int argc, char **argv) /* 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 = { @@ -372,25 +381,22 @@ int main(int argc, char **argv) } 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); } @@ -409,6 +415,7 @@ int main(int argc, char **argv) error_close_buffer_access: if (close(fp) == -1) perror("Failed to close buffer"); + error_free_buffer_access: free(buffer_access); error_free_data: @@ -424,6 +431,7 @@ error_free_channels: error_free_triggername: if (datardytrigger) free(trigger_name); + error_free_dev_dir_name: free(dev_dir_name); diff --git a/tools/iio/iio_event_monitor.c b/tools/iio/iio_event_monitor.c index 016760e769c0..a4ab6bb8f872 100644 --- a/tools/iio/iio_event_monitor.c +++ b/tools/iio/iio_event_monitor.c @@ -13,7 +13,6 @@ * * Usage: * iio_event_monitor - * */ #include @@ -209,7 +208,8 @@ static void print_event(struct iio_event_data *event) if (!event_is_known(event)) { printf("Unknown event: time: %lld, id: %llx\n", - event->timestamp, event->id); + event->timestamp, event->id); + return; } @@ -229,6 +229,7 @@ static void print_event(struct iio_event_data *event) if (dir != IIO_EV_DIR_NONE) printf(", direction: %s", iio_ev_dir_text[dir]); + printf("\n"); } @@ -251,14 +252,16 @@ int main(int argc, char **argv) dev_num = find_type_by_name(device_name, "iio:device"); if (dev_num >= 0) { printf("Found IIO device with name %s with device number %d\n", - device_name, dev_num); + device_name, dev_num); ret = asprintf(&chrdev_name, "/dev/iio:device%d", dev_num); if (ret < 0) { return -ENOMEM; } } else { - /* If we can't find a IIO device by name assume device_name is a - IIO chrdev */ + /* + * If we can't find an IIO device by name assume device_name is + * an IIO chrdev + */ chrdev_name = strdup(device_name); if (!chrdev_name) return -ENOMEM; diff --git a/tools/iio/iio_utils.c b/tools/iio/iio_utils.c index ec9ab7f9ae4c..4eac11ad38c4 100644 --- a/tools/iio/iio_utils.c +++ b/tools/iio/iio_utils.c @@ -32,8 +32,7 @@ static char * const iio_direction[] = { * * 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; @@ -65,6 +64,7 @@ int iioutils_break_up_name(const char *full_name, *w = *r; w++; } + r++; } *w = '\0'; @@ -88,15 +88,10 @@ int iioutils_break_up_name(const char *full_name, * * 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; @@ -126,6 +121,7 @@ int iioutils_get_type(unsigned *is_signed, ret = -errno; goto error_free_builtname_generic; } + ret = -ENOENT; while (ent = readdir(dp), ent != NULL) /* @@ -140,6 +136,7 @@ int iioutils_get_type(unsigned *is_signed, ret = -ENOMEM; goto error_closedir; } + sysfsfp = fopen(filename, "r"); if (sysfsfp == NULL) { ret = -errno; @@ -162,12 +159,14 @@ int iioutils_get_type(unsigned *is_signed, 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; @@ -177,9 +176,9 @@ int iioutils_get_type(unsigned *is_signed, sysfsfp = 0; free(filename); - filename = 0; } + error_close_sysfsfp: if (sysfsfp) if (fclose(sysfsfp)) @@ -188,6 +187,7 @@ error_close_sysfsfp: error_free_filename: if (filename) free(filename); + error_closedir: if (closedir(dp) == -1) perror("iioutils_get_type(): Failed to close directory"); @@ -212,11 +212,9 @@ error_free_scan_el_dir: * * 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; @@ -235,11 +233,13 @@ int iioutils_get_param_float(float *output, 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) || @@ -250,11 +250,13 @@ int iioutils_get_param_float(float *output, 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; @@ -264,6 +266,7 @@ int iioutils_get_param_float(float *output, error_free_filename: if (filename) free(filename); + error_closedir: if (closedir(dp) == -1) perror("iioutils_get_param_float(): Failed to close directory"); @@ -282,16 +285,14 @@ 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) { + 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; @@ -307,8 +308,7 @@ void bsort_channel_array_by_index(struct iio_channel_info **ci_array, * 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; @@ -329,6 +329,7 @@ int build_channel_array(const char *device_dir, 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) { @@ -338,12 +339,14 @@ int build_channel_array(const char *device_dir, 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; @@ -353,9 +356,9 @@ int build_channel_array(const char *device_dir, free(filename); goto error_close_dir; } - if (ret == 1) (*counter)++; + if (fclose(sysfsfp)) { ret = -errno; free(filename); @@ -364,11 +367,13 @@ int build_channel_array(const char *device_dir, 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"), @@ -384,6 +389,7 @@ int build_channel_array(const char *device_dir, count--; goto error_cleanup_array; } + sysfsfp = fopen(filename, "r"); if (sysfsfp == NULL) { ret = -errno; @@ -391,6 +397,7 @@ int build_channel_array(const char *device_dir, count--; goto error_cleanup_array; } + errno = 0; if (fscanf(sysfsfp, "%i", ¤t_enabled) != 1) { ret = errno ? -errno : -ENODATA; @@ -423,6 +430,7 @@ int build_channel_array(const char *device_dir, count--; goto error_cleanup_array; } + /* Get the generic and specific name elements */ ret = iioutils_break_up_name(current->name, ¤t->generic_name); @@ -432,6 +440,7 @@ int build_channel_array(const char *device_dir, count--; goto error_cleanup_array; } + ret = asprintf(&filename, "%s/%s_index", scan_el_dir, @@ -441,6 +450,7 @@ int build_channel_array(const char *device_dir, ret = -ENOMEM; goto error_cleanup_array; } + sysfsfp = fopen(filename, "r"); if (sysfsfp == NULL) { ret = -errno; @@ -474,6 +484,7 @@ int build_channel_array(const char *device_dir, current->generic_name); if (ret < 0) goto error_cleanup_array; + ret = iioutils_get_param_float(¤t->offset, "offset", device_dir, @@ -481,6 +492,7 @@ int build_channel_array(const char *device_dir, current->generic_name); if (ret < 0) goto error_cleanup_array; + ret = iioutils_get_type(¤t->is_signed, ¤t->bytes, ¤t->bits_used, @@ -562,9 +574,9 @@ int find_type_by_name(const char *name, const char *type) 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) { @@ -580,12 +592,9 @@ int find_type_by_name(const char *name, const char *type) 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; @@ -603,6 +612,7 @@ int find_type_by_name(const char *name, const char *type) free(filename); continue; } + free(filename); errno = 0; if (fscanf(nameFile, "%s", thisname) != 1) { @@ -618,6 +628,7 @@ int find_type_by_name(const char *name, const char *type) if (strcmp(name, thisname) == 0) { if (closedir(dp) == -1) return -errno; + return number; } } @@ -631,6 +642,7 @@ int find_type_by_name(const char *name, const char *type) error_close_dir: if (closedir(dp) == -1) perror("find_type_by_name(): Failed to close directory"); + return ret; } @@ -644,6 +656,7 @@ static int _write_sysfs_int(const char *filename, const char *basedir, int val, if (temp == NULL) return -ENOMEM; + ret = sprintf(temp, "%s/%s", basedir, filename); if (ret < 0) goto error_free; @@ -654,6 +667,7 @@ static int _write_sysfs_int(const char *filename, const char *basedir, int val, printf("failed to open %s\n", temp); goto error_free; } + ret = fprintf(sysfsfp, "%d", val); if (ret < 0) { if (fclose(sysfsfp)) @@ -674,6 +688,7 @@ static int _write_sysfs_int(const char *filename, const char *basedir, int val, printf("failed to open %s\n", temp); goto error_free; } + if (fscanf(sysfsfp, "%d", &test) != 1) { ret = errno ? -errno : -ENODATA; if (fclose(sysfsfp)) @@ -688,13 +703,12 @@ 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); + printf("Possible failure in int write %d to %s/%s\n", + val, basedir, filename); ret = -1; } } + error_free: free(temp); return ret; @@ -739,6 +753,7 @@ static int _write_sysfs_string(const char *filename, const char *basedir, printf("Memory allocation failed\n"); return -ENOMEM; } + ret = sprintf(temp, "%s/%s", basedir, filename); if (ret < 0) goto error_free; @@ -749,6 +764,7 @@ static int _write_sysfs_string(const char *filename, const char *basedir, printf("Could not open %s\n", temp); goto error_free; } + ret = fprintf(sysfsfp, "%s", val); if (ret < 0) { if (fclose(sysfsfp)) @@ -766,9 +782,10 @@ static int _write_sysfs_string(const char *filename, const char *basedir, 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)) @@ -784,15 +801,12 @@ 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); + "Should be %s written to %s/%s\n", temp, val, + basedir, filename); ret = -1; } } + error_free: free(temp); @@ -845,6 +859,7 @@ int read_sysfs_posint(const char *filename, const char *basedir) printf("Memory allocation failed"); return -ENOMEM; } + ret = sprintf(temp, "%s/%s", basedir, filename); if (ret < 0) goto error_free; @@ -854,6 +869,7 @@ int read_sysfs_posint(const char *filename, const char *basedir) ret = -errno; goto error_free; } + errno = 0; if (fscanf(sysfsfp, "%d\n", &ret) != 1) { ret = errno ? -errno : -ENODATA; @@ -868,6 +884,7 @@ int read_sysfs_posint(const char *filename, const char *basedir) error_free: free(temp); + return ret; } @@ -889,6 +906,7 @@ int read_sysfs_float(const char *filename, const char *basedir, float *val) printf("Memory allocation failed"); return -ENOMEM; } + ret = sprintf(temp, "%s/%s", basedir, filename); if (ret < 0) goto error_free; @@ -898,6 +916,7 @@ int read_sysfs_float(const char *filename, const char *basedir, float *val) ret = -errno; goto error_free; } + errno = 0; if (fscanf(sysfsfp, "%f\n", val) != 1) { ret = errno ? -errno : -ENODATA; @@ -912,6 +931,7 @@ int read_sysfs_float(const char *filename, const char *basedir, float *val) error_free: free(temp); + return ret; } @@ -933,6 +953,7 @@ int read_sysfs_string(const char *filename, const char *basedir, char *str) printf("Memory allocation failed"); return -ENOMEM; } + ret = sprintf(temp, "%s/%s", basedir, filename); if (ret < 0) goto error_free; @@ -942,6 +963,7 @@ int read_sysfs_string(const char *filename, const char *basedir, char *str) ret = -errno; goto error_free; } + errno = 0; if (fscanf(sysfsfp, "%s\n", str) != 1) { ret = errno ? -errno : -ENODATA; @@ -956,6 +978,7 @@ int read_sysfs_string(const char *filename, const char *basedir, char *str) error_free: free(temp); + return ret; } diff --git a/tools/iio/iio_utils.h b/tools/iio/iio_utils.h index 379eed9deaea..086610139ade 100644 --- a/tools/iio/iio_utils.h +++ b/tools/iio/iio_utils.h @@ -51,17 +51,16 @@ struct iio_channel_info { }; 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, diff --git a/tools/iio/lsiio.c b/tools/iio/lsiio.c index b59ee1733924..f5b3bd0267d5 100644 --- a/tools/iio/lsiio.c +++ b/tools/iio/lsiio.c @@ -20,7 +20,6 @@ #include #include "iio_utils.h" - static enum verbosity { VERBLEVEL_DEFAULT, /* 0 gives lspci behaviour */ VERBLEVEL_SENSORS, /* 1 lists sensors */ @@ -29,17 +28,16 @@ static enum verbosity { 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) @@ -50,11 +48,11 @@ 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; } @@ -69,6 +67,7 @@ static int dump_one_device(const char *dev_dir_name) "%i", &dev_idx); if (retval != 1) return -EINVAL; + retval = read_sysfs_string("name", dev_dir_name, name); if (retval) return retval; @@ -77,6 +76,7 @@ static int dump_one_device(const char *dev_dir_name) if (verblevel >= VERBLEVEL_SENSORS) return dump_channels(dev_dir_name); + return 0; } @@ -90,11 +90,13 @@ static int dump_one_trigger(const char *dev_dir_name) "%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; } @@ -151,6 +153,7 @@ static int dump_devices(void) free(dev_dir_name); } } + return (closedir(dp) == -1) ? -errno : 0; error_close_dir: -- cgit v1.2.3