static void init_device_list(void)
{
unsigned int i, num = iio_context_get_devices_count(ctx);
GtkTreeIter iter;
gtk_list_store_clear(device_list_store);
for (i = 0; i < num; i++) {
struct iio_device *dev = iio_context_get_device(ctx, i);
unsigned int j, nch = iio_device_get_channels_count(dev);
const char *id;
bool found_valid_chan = false;
for (j = 0; !found_valid_chan && j < nch; j++) {
struct iio_channel *chn =
iio_device_get_channel(dev, j);
found_valid_chan = is_valid_dmm_channel(chn);
}
if (!found_valid_chan)
continue;
id = iio_device_get_name(dev);
if (!id)
id = iio_device_get_id(dev);
gtk_list_store_append(device_list_store, &iter);
gtk_list_store_set(device_list_store, &iter, 0, id, 1, 0, -1);
}
gtk_tree_sortable_set_sort_column_id(
GTK_TREE_SORTABLE(GTK_TREE_MODEL(device_list_store)),
0, GTK_SORT_ASCENDING);
}
static ssize_t update_from_ini_chn_cb(struct iio_channel *chn,
const char *attr, void *buf, size_t len, void *d)
{
struct load_store_params *params = (struct load_store_params *) d;
const char *dev_name = iio_device_get_name(params->dev);
size_t name_len = dev_name ? strlen(dev_name) : 0;
bool is_hardwaregain = !strncmp(attr, "hardwaregain", len);
attr = iio_channel_attr_get_filename(chn, attr);
if (attr_in_whitelist(attr, dev_name, name_len, false,
params->whitelist, params->list_len)) {
ssize_t ret = read_from_ini(params,
dev_name, name_len, attr, buf, len);
/* Dirty workaround that strips the "dB" suffix of
* hardwaregain value. Fix me when possible. */
if (is_hardwaregain) {
char *tmp = strstr((char *) buf, " dB");
if (tmp)
*tmp = '\0';
}
return ret;
}
return 0;
}
static void rx_phase_rotation(struct iio_device *dev, gdouble val)
{
struct iio_channel *out0, *out1;
gdouble phase;
unsigned offset;
DBG("%s %f\n", iio_device_get_name(dev), val);
phase = val * 2 * M_PI / 360.0;
/* Set both RX1 and RX2 */
for (offset = 0; offset <= 2; offset += 2) {
if (offset == 2) {
out0 = iio_device_find_channel(dev, "voltage2", false);
out1 = iio_device_find_channel(dev, "voltage3", false);
} else {
out0 = iio_device_find_channel(dev, "voltage0", false);
out1 = iio_device_find_channel(dev, "voltage1", false);
}
if (out1 && out0) {
iio_channel_attr_write_double(out0, "calibscale", (double) cos(phase));
iio_channel_attr_write_double(out0, "calibphase", (double) (-1 * sin(phase)));
iio_channel_attr_write_double(out1, "calibscale", (double) cos(phase));
iio_channel_attr_write_double(out1, "calibphase", (double) sin(phase));
}
}
}
bool iio_device_is_trigger(const struct iio_device *dev)
{
/* A trigger has a name, an id which starts by "trigger",
* and zero channels. */
unsigned int nb = iio_device_get_channels_count(dev);
const char *name = iio_device_get_name(dev),
*id = iio_device_get_id(dev);
return ((nb == 0) && !!name &&
!strncmp(id, "trigger", sizeof("trigger") - 1));
}
static int save_to_ini_dev_cb(struct iio_device *dev,
const char *attr, const char *val, size_t len, void *d)
{
struct load_store_params *params = (struct load_store_params *) d;
const char *dev_name = iio_device_get_name(dev);
size_t name_len = dev_name ? strlen(dev_name) : 0;
if (attr_in_whitelist(attr, dev_name, name_len, params->is_debug,
params->whitelist, params->list_len))
write_to_ini(params, dev_name, name_len, attr, val, len);
return 0;
}
int iiod_client_get_trigger(struct iiod_client *client, int desc,
const struct iio_device *dev, const struct iio_device **trigger)
{
const struct iio_context *ctx = iio_device_get_context(dev);
unsigned int i, nb_devices = iio_context_get_devices_count(ctx);
char buf[1024];
unsigned int name_len;
int ret;
snprintf(buf, sizeof(buf), "GETTRIG %s\r\n", iio_device_get_id(dev));
iio_mutex_lock(client->lock);
ret = iiod_client_exec_command(client, desc, buf);
if (ret == 0)
*trigger = NULL;
if (ret <= 0)
goto out_unlock;
if ((unsigned int) ret > sizeof(buf) - 1) {
ret = -EIO;
goto out_unlock;
}
name_len = ret;
ret = (int) iiod_client_read_all(client, desc, buf, name_len + 1);
if (ret < 0)
goto out_unlock;
ret = -ENXIO;
for (i = 0; i < nb_devices; i++) {
struct iio_device *cur = iio_context_get_device(ctx, i);
if (iio_device_is_trigger(cur)) {
const char *name = iio_device_get_name(cur);
if (!name)
continue;
if (!strncmp(name, buf, name_len)) {
*trigger = cur;
ret = 0;
goto out_unlock;
}
}
}
out_unlock:
iio_mutex_unlock(client->lock);
return ret;
}
static struct iio_device * get_device(const char *id)
{
unsigned int i, nb = iio_context_get_devices_count(ctx);
for (i = 0; i < nb; i++) {
struct iio_device *dev = iio_context_get_device(ctx, i);
const char *name = iio_device_get_name(dev);
if (!strcmp(id, iio_device_get_id(dev)) ||
(name && !strcmp(name, id)))
return dev;
}
return NULL;
}
static ssize_t update_from_ini_dev_cb(struct iio_device *dev,
const char *attr, void *buf, size_t len, void *d)
{
struct load_store_params *params = (struct load_store_params *) d;
const char *dev_name = iio_device_get_name(dev);
size_t name_len = dev_name ? strlen(dev_name) : 0;
if (attr_in_whitelist(attr, dev_name, name_len, params->is_debug,
params->whitelist, params->list_len))
return read_from_ini(params,
dev_name, name_len, attr, buf, len);
return 0;
}
static int save_to_ini_chn_cb(struct iio_channel *chn,
const char *attr, const char *val, size_t len, void *d)
{
struct load_store_params *params = (struct load_store_params *) d;
const char *dev_name = iio_device_get_name(params->dev);
size_t name_len = dev_name ? strlen(dev_name) : 0;
attr = iio_channel_attr_get_filename(chn, attr);
if (attr_in_whitelist(attr, dev_name, name_len, false,
params->whitelist, params->list_len))
write_to_ini(params, dev_name, name_len, attr, val, len);
return 0;
}
static void trx_phase_rotation(struct iio_device *dev, gdouble val)
{
struct iio_channel *out0, *out1;
gdouble phase, vcos, vsin;
unsigned offset;
bool output = (dev == dev_dds_slave) || (dev == dev_dds_master);
DBG("%s %f\n", iio_device_get_name(dev), val);
phase = val * 2 * M_PI / 360.0;
vcos = cos(phase);
vsin = sin(phase);
if (output) {
gdouble corr;
corr = 1.0 / fmax(fabs(sin(phase) + cos(phase)),
fabs(cos(phase) - sin(phase)));
vcos *= corr;
vsin *= corr;
}
/* Set both RX1 and RX2 */
for (offset = 0; offset <= 2; offset += 2) {
if (offset == 2) {
out0 = iio_device_find_channel(dev, "voltage2", output);
out1 = iio_device_find_channel(dev, "voltage3", output);
} else {
out0 = iio_device_find_channel(dev, "voltage0", output);
out1 = iio_device_find_channel(dev, "voltage1", output);
}
if (out1 && out0) {
iio_channel_attr_write_double(out0, "calibscale", (double) vcos);
iio_channel_attr_write_double(out0, "calibphase", (double) (-1.0 * vsin));
iio_channel_attr_write_double(out1, "calibscale", (double) vcos);
iio_channel_attr_write_double(out1, "calibphase", (double) vsin);
}
}
}
static struct iio_device * get_device(const struct iio_context *ctx,
const char *id)
{
unsigned int i, nb_devices = iio_context_get_devices_count(ctx);
struct iio_device *device;
for (i = 0; i < nb_devices; i++) {
const char *name;
device = iio_context_get_device(ctx, i);
name = iio_device_get_name(device);
if (name && !strcmp(name, id))
break;
if (!strcmp(id, iio_device_get_id(device)))
break;
}
if (i < nb_devices)
return device;
fprintf(stderr, "Device %s not found\n", id);
return NULL;
}
static bool connect_fillin(Dialogs *data)
{
GtkTextBuffer *buf;
GtkTextIter iter;
char text[256];
unsigned int num;
size_t i;
struct iio_context *ctx;
const char *desc;
#ifdef FRU_FILES
char eprom_names[128];
unsigned char *raw_input_data = NULL;
FILE *efp, *fp;
struct stat st;
/* flushes all open output streams */
fflush(NULL);
#if DEBUG
fp = popen("find ./ -name \"fru*.bin\"", "r");
#else
fp = popen("find /sys -name eeprom 2>/dev/null", "r");
#endif
if(fp == NULL) {
fprintf(stderr, "can't execute find\n");
return false;
}
buf = gtk_text_buffer_new(NULL);
gtk_text_buffer_get_iter_at_offset(buf, &iter, 0);
num = 0;
while(fgets(eprom_names, sizeof(eprom_names), fp) != NULL) {
num++;
/* strip trailing new lines */
if (eprom_names[strlen(eprom_names) - 1] == '\n')
eprom_names[strlen(eprom_names) - 1] = '\0';
/* FRU EEPROMS are exactly 256 */
if(stat(eprom_names, &st) !=0)
continue;
if(st.st_size != 256) {
printf("skipping %s (size == %d)\n", eprom_names, (int)st.st_size);
continue;
}
i = 0;
if (!is_eeprom_fru(eprom_names, buf, &iter)) {
/* Wasn't a FRU file, but is it a blank, writeable EEPROM? */
efp = fopen(eprom_names, "w+");
if (efp) {
i = fread(text, 1, 256, efp);
if (i == 256) {
for (i = 0; i < 256; i++) {
if (!(text[i] == 0x00 || ((unsigned char) text[i]) == 0xFF)) {
i = 0;
break;
}
}
}
fclose(efp);
/* dump the info into it */
if (i == 256) {
if (write_fru(eprom_names))
if(!is_eeprom_fru(eprom_names, buf, &iter))
i = 0;
}
} else {
int errsv = errno;
printf("Can't open %s in %s\n%s\n", eprom_names, __func__, strerror(errsv));
}
if (i == 0) {
sprintf(text, "No FRU information in %s\n", eprom_names);
gtk_text_buffer_insert(buf, &iter, text, -1);
}
}
free (raw_input_data);
}
pclose(fp);
if (!num) {
sprintf(text, "No eeprom files found in /sys/\n");
gtk_text_buffer_insert(buf, &iter, text, -1);
}
gtk_text_view_set_buffer(GTK_TEXT_VIEW(data->connect_fru), buf);
g_object_unref(buf);
#endif
ctx = get_context(data);
desc = ctx ? iio_context_get_description(ctx) : "";
buf = gtk_text_buffer_new(NULL);
gtk_text_buffer_get_iter_at_offset(buf, &iter, 0);
gtk_text_buffer_insert(buf, &iter, desc, -1);
gtk_text_view_set_buffer(GTK_TEXT_VIEW(data->ctx_info), buf);
g_object_unref(buf);
buf = gtk_text_buffer_new(NULL);
gtk_text_buffer_get_iter_at_offset(buf, &iter, 0);
num = ctx ? iio_context_get_devices_count(ctx) : 0;
if (num > 0) {
for (i = 0; i < num; i++) {
struct iio_device *dev = iio_context_get_device(ctx, i);
sprintf(text, "%s\n", iio_device_get_name(dev));
gtk_text_buffer_insert(buf, &iter, text, -1);
}
} else {
sprintf(text, "No iio devices found\n");
gtk_text_buffer_insert(buf, &iter, text, -1);
}
gtk_text_view_set_buffer(GTK_TEXT_VIEW(data->connect_iio), buf);
g_object_unref(buf);
if (ctx)
iio_context_destroy(ctx);
return !!ctx;
}
int iioc_sampling_setup(struct iio_device *adc_dev,
struct iio_device *trigger_dev,
unsigned int sampling_freq,
unsigned int sample_count
)
{
unsigned int i;
int ret;
unsigned int min_timeout = 2000;
if (!adc_dev || !trigger_dev)
return -ENODEV;
unsigned int nb_channels = iio_device_get_channels_count(adc_dev);
if (nb_channels == 0) {
IIOC_DBG("There is 0 Channel in adc_device.\n");
return -EIO;
}
unsigned int sample_size = iio_device_get_sample_size(adc_dev);
if (sample_size == 0) {
IIOC_DBG("Sample Size is 0.\n");
return -ENODATA;
}
struct extra_dev_info *dev_info = iio_device_get_data(adc_dev);
if (dev_info->input_device == false) {
IIOC_DBG("adc_dev is not an input device.\n");
return -EIO;
}
//°ó¶¨trigger
ret = iio_device_set_trigger(adc_dev, trigger_dev);
if (ret)
{
#ifdef _DEBUG
const char *trigger_name = iio_device_get_name(trigger_dev);
const char *adc_name = iio_device_get_name(adc_dev);
IIOC_DBG("Can not bind the %s with %s.\n", trigger_name, adc_name);
#endif
return -EIO;
}
//ɾ³ý¾Ébuffer
if (dev_info->buffer)
iio_buffer_destroy(dev_info->buffer);
dev_info->buffer = NULL;
//ÉèÖÃsample_count(buffer´óС)
dev_info->sample_count = sample_count;
//ʹÄÜͨµÀ£¬²¢ÎªÃ¿¸öͨµÀ·ÖÅäÄÚ´æ¿Õ¼ä
for (i = 0; i < nb_channels; i++) {
struct iio_channel *ch = iio_device_get_channel(adc_dev, i);
struct extra_chn_info *chn_info = iio_channel_get_data(ch);
if (chn_info->enabled)
iio_channel_enable(ch);
else
iio_channel_disable(ch);
if (chn_info->data_ref)
free(chn_info->data_ref);
chn_info->data_ref = (int16_t *)calloc(dev_info->sample_count, sizeof(int16_t));
if (!chn_info->data_ref) {
IIOC_DBG("Can not calloc channel data mem.\n");
goto error_calloc_chn_data_ref;
}
}
dev_info->sampling_freq = sampling_freq;
//ÖØаó¶¨Êý¾Ý
iio_device_set_data(adc_dev, dev_info);
//ÉèÖó¬Ê±
if (sampling_freq > 0) {
/* 2 x capture time + 2s */
unsigned int timeout = dev_info->sample_count * 1000 / sampling_freq;
timeout += 2000;
if (timeout > min_timeout)
min_timeout = timeout;
}
if (dev_info->ctx_info->ctx)
iio_context_set_timeout(dev_info->ctx_info->ctx, min_timeout);
return 0;
error_calloc_chn_data_ref:
for (i = 0; i < nb_channels; i++) {
struct iio_channel *ch = iio_device_get_channel(adc_dev, i);
struct extra_chn_info *chn_info = iio_channel_get_data(ch);
if (chn_info->data_ref)
free(chn_info->data_ref);
}
return -ENOMEM;
}
int main(int argc, char **argv)
{
unsigned int buffer_size = 1024 * 1024;
int c, option_index = 0, arg_index = 0;
unsigned int n_tx = 0, n_rx = 0;
static struct iio_context *ctx;
unsigned int i, nb_channels;
struct iio_buffer *buffer;
pthread_t monitor_thread;
const char *device_name;
struct iio_device *dev;
char unit;
int ret;
while ((c = getopt_long(argc, argv, "+hs:",
options, &option_index)) != -1) {
switch (c) {
case 'h':
usage(argv);
return EXIT_SUCCESS;
case 's':
arg_index += 2;
ret = sscanf(argv[arg_index], "%u%c", &buffer_size, &unit);
if (ret == 0)
return EXIT_FAILURE;
if (ret == 2) {
if (unit == 'k')
buffer_size *= 1024;
else if (unit == 'M')
buffer_size *= 1024 * 1024;
}
break;
case '?':
return EXIT_FAILURE;
}
}
if (arg_index + 1 >= argc) {
fprintf(stderr, "Incorrect number of arguments.\n\n");
usage(argv);
return EXIT_FAILURE;
}
#ifndef _WIN32
set_handler(SIGHUP, &quit_all);
#endif
set_handler(SIGINT, &quit_all);
set_handler(SIGSEGV, &quit_all);
set_handler(SIGTERM, &quit_all);
ctx = iio_create_default_context();
if (!ctx) {
fprintf(stderr, "Unable to create IIO context\n");
return EXIT_FAILURE;
}
device_name = argv[arg_index + 1];
dev = get_device(ctx, device_name);
if (!dev) {
iio_context_destroy(ctx);
return EXIT_FAILURE;
}
nb_channels = iio_device_get_channels_count(dev);
for (i = 0; i < nb_channels; i++) {
struct iio_channel *ch = iio_device_get_channel(dev, i);
if (!iio_channel_is_scan_element(ch))
continue;
iio_channel_enable(ch);
if (iio_channel_is_output(ch))
n_tx++;
else
n_rx++;
}
if (n_tx >= n_rx)
device_is_tx = true;
else
device_is_tx = false;
printf("Monitoring %s for underflows/overflows\n",
iio_device_get_name(dev));
buffer = iio_device_create_buffer(dev, buffer_size, false);
if (!buffer) {
fprintf(stderr, "Unable to allocate buffer\n");
iio_context_destroy(ctx);
return EXIT_FAILURE;
}
ret = pthread_create(&monitor_thread, NULL, monitor_thread_fn,
(void *)device_name);
if (ret) {
fprintf(stderr, "Failed to create monitor thread: %s\n",
strerror(-ret));
}
while (app_running) {
if (device_is_tx) {
ret = iio_buffer_push(buffer);
if (ret < 0) {
fprintf(stderr, "Unable to push buffer: %s\n",
strerror(-ret));
app_running = false;
break;
}
} else {
ret = iio_buffer_refill(buffer);
if (ret < 0) {
fprintf(stderr, "Unable to refill buffer: %s\n",
strerror(-ret));
app_running = false;
break;
}
}
}
iio_buffer_destroy(buffer);
iio_context_destroy(ctx);
pthread_join(monitor_thread, NULL);
return 0;
}
int main(int argc, char **argv)
{
struct iio_context *ctx;
int c, option_index = 0, arg_index = 0;
enum backend backend = LOCAL;
unsigned int major, minor;
char git_tag[8];
int ret;
while ((c = getopt_long(argc, argv, "+hn:x:",
options, &option_index)) != -1) {
switch (c) {
case 'h':
usage();
return EXIT_SUCCESS;
case 'n':
if (backend != LOCAL) {
ERROR("-x and -n are mutually exclusive\n");
return EXIT_FAILURE;
}
backend = NETWORK;
arg_index += 2;
break;
case 'x':
if (backend != LOCAL) {
ERROR("-x and -n are mutually exclusive\n");
return EXIT_FAILURE;
}
backend = XML;
arg_index += 2;
break;
case '?':
return EXIT_FAILURE;
}
}
if (arg_index >= argc) {
fprintf(stderr, "Incorrect number of arguments.\n\n");
usage();
return EXIT_FAILURE;
}
iio_library_get_version(&major, &minor, git_tag);
INFO("Library version: %u.%u (git tag: %s)\n", major, minor, git_tag);
if (backend == XML)
ctx = iio_create_xml_context(argv[arg_index]);
else if (backend == NETWORK)
ctx = iio_create_network_context(argv[arg_index]);
else
ctx = iio_create_local_context();
if (!ctx) {
ERROR("Unable to create IIO context\n");
return EXIT_FAILURE;
}
INFO("IIO context created with %s backend.\n",
iio_context_get_name(ctx));
ret = iio_context_get_version(ctx, &major, &minor, git_tag);
if (!ret)
INFO("Backend version: %u.%u (git tag: %s)\n",
major, minor, git_tag);
else
ERROR("Unable to get backend version: %i\n", ret);
unsigned int nb_devices = iio_context_get_devices_count(ctx);
INFO("IIO context has %u devices:\n", nb_devices);
unsigned int i;
for (i = 0; i < nb_devices; i++) {
const struct iio_device *dev = iio_context_get_device(ctx, i);
const char *name = iio_device_get_name(dev);
INFO("\t%s: %s\n", iio_device_get_id(dev), name ? name : "" );
unsigned int nb_channels = iio_device_get_channels_count(dev);
INFO("\t\t%u channels found:\n", nb_channels);
unsigned int j;
for (j = 0; j < nb_channels; j++) {
struct iio_channel *ch = iio_device_get_channel(dev, j);
const char *type_name;
if (iio_channel_is_output(ch))
type_name = "output";
else
type_name = "input";
name = iio_channel_get_name(ch);
INFO("\t\t\t%s: %s (%s)\n",
iio_channel_get_id(ch),
name ? name : "", type_name);
unsigned int nb_attrs = iio_channel_get_attrs_count(ch);
if (!nb_attrs)
continue;
INFO("\t\t\t%u channel-specific attributes found:\n",
nb_attrs);
unsigned int k;
for (k = 0; k < nb_attrs; k++) {
const char *attr = iio_channel_get_attr(ch, k);
char buf[1024];
ret = (int) iio_channel_attr_read(ch,
attr, buf, 1024);
if (ret > 0)
INFO("\t\t\t\tattr %u: %s"
" value: %s\n", k,
attr, buf);
else if (ret == -ENOSYS)
INFO("\t\t\t\tattr %u: %s\n", k, attr);
else
ERROR("Unable to read attribute %s\n",
attr);
}
}
unsigned int nb_attrs = iio_device_get_attrs_count(dev);
if (!nb_attrs)
continue;
INFO("\t\t%u device-specific attributes found:\n", nb_attrs);
for (j = 0; j < nb_attrs; j++) {
const char *attr = iio_device_get_attr(dev, j);
char buf[1024];
ret = (int) iio_device_attr_read(dev,
attr, buf, 1024);
if (ret > 0)
INFO("\t\t\t\tattr %u: %s value: %s\n", j,
attr, buf);
else if (ret == -ENOSYS)
INFO("\t\t\t\tattr %u: %s\n", j, attr);
else
ERROR("Unable to read attribute: %s\n", attr);
}
}
iio_context_destroy(ctx);
return EXIT_SUCCESS;
}