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 void iio_widget_init(struct iio_widget *widget,
struct iio_device *dev, struct iio_channel *chn, const char *attr_name,
const char *attr_name_avail, GtkWidget *gtk_widget, void *priv,
void (*update)(struct iio_widget *),
void (*update_value)(struct iio_widget *, const char *, size_t),
void (*save)(struct iio_widget *))
{
if (!gtk_widget) {
const char *name = iio_device_get_name(dev) ?:
iio_device_get_id(dev);
printf("Missing widget for %s/%s\n", name, attr_name);
}
memset(widget, 0, sizeof(*widget));
widget->dev = dev;
widget->chn = chn;
widget->attr_name = attr_name;
widget->attr_name_avail = attr_name_avail;
widget->widget = gtk_widget;
widget->update = update;
widget->update_value = update_value;
widget->save = save;
widget->priv = priv;
}
int iiod_client_close_unlocked(struct iiod_client *client, int desc,
const struct iio_device *dev)
{
char buf[1024];
snprintf(buf, sizeof(buf), "CLOSE %s\r\n", iio_device_get_id(dev));
return iiod_client_exec_command(client, desc, buf);
}
ssize_t iiod_client_read_attr(struct iiod_client *client, int desc,
const struct iio_device *dev, const struct iio_channel *chn,
const char *attr, char *dest, size_t len, bool is_debug)
{
const char *id = iio_device_get_id(dev);
char buf[1024];
ssize_t ret;
if (attr) {
if (chn) {
if (!iio_channel_find_attr(chn, attr))
return -ENOENT;
} else if (is_debug) {
if (!iio_device_find_debug_attr(dev, attr))
return -ENOENT;
} else {
if (!iio_device_find_attr(dev, attr))
return -ENOENT;
}
}
if (chn)
snprintf(buf, sizeof(buf), "READ %s %s %s %s\r\n", id,
iio_channel_is_output(chn) ? "OUTPUT" : "INPUT",
iio_channel_get_id(chn), attr ? attr : "");
else if (is_debug)
snprintf(buf, sizeof(buf), "READ %s DEBUG %s\r\n",
id, attr ? attr : "");
else
snprintf(buf, sizeof(buf), "READ %s %s\r\n",
id, attr ? attr : "");
iio_mutex_lock(client->lock);
ret = (ssize_t) iiod_client_exec_command(client, desc, buf);
if (ret < 0)
goto out_unlock;
if ((size_t) ret + 1 > len) {
ret = -EIO;
goto out_unlock;
}
/* +1: Also read the trailing \n */
ret = iiod_client_read_all(client, desc, dest, ret + 1);
if (ret > 0) {
/* Discard the trailing \n */
ret--;
/* Replace it with a \0 just in case */
dest[ret] = '\0';
}
out_unlock:
iio_mutex_unlock(client->lock);
return ret;
}
int iiod_client_set_trigger(struct iiod_client *client, int desc,
const struct iio_device *dev, const struct iio_device *trigger)
{
char buf[1024];
int ret;
if (trigger)
snprintf(buf, sizeof(buf), "SETTRIG %s %s\r\n",
iio_device_get_id(dev),
iio_device_get_id(trigger));
else
snprintf(buf, sizeof(buf), "SETTRIG %s\r\n",
iio_device_get_id(dev));
iio_mutex_lock(client->lock);
ret = iiod_client_exec_command(client, desc, buf);
iio_mutex_unlock(client->lock);
return ret;
}
ssize_t iiod_client_write_attr(struct iiod_client *client, int desc,
const struct iio_device *dev, const struct iio_channel *chn,
const char *attr, const char *src, size_t len, bool is_debug)
{
struct iio_context_pdata *pdata = client->pdata;
const struct iiod_client_ops *ops = client->ops;
const char *id = iio_device_get_id(dev);
char buf[1024];
ssize_t ret;
int resp;
if (attr) {
if (chn) {
if (!iio_channel_find_attr(chn, attr))
return -ENOENT;
} else if (is_debug) {
if (!iio_device_find_debug_attr(dev, attr))
return -ENOENT;
} else {
if (!iio_device_find_attr(dev, attr))
return -ENOENT;
}
}
if (chn)
snprintf(buf, sizeof(buf), "WRITE %s %s %s %s %lu\r\n", id,
iio_channel_is_output(chn) ? "OUTPUT" : "INPUT",
iio_channel_get_id(chn), attr ? attr : "",
(unsigned long) len);
else if (is_debug)
snprintf(buf, sizeof(buf), "WRITE %s DEBUG %s %lu\r\n",
id, attr ? attr : "", (unsigned long) len);
else
snprintf(buf, sizeof(buf), "WRITE %s %s %lu\r\n",
id, attr ? attr : "", (unsigned long) len);
iio_mutex_lock(client->lock);
ret = ops->write(pdata, desc, buf, strlen(buf));
if (ret < 0)
goto out_unlock;
ret = iiod_client_write_all(client, desc, src, len);
if (ret < 0)
goto out_unlock;
ret = iiod_client_read_integer(client, desc, &resp);
if (ret < 0)
goto out_unlock;
ret = (ssize_t) resp;
out_unlock:
iio_mutex_unlock(client->lock);
return ret;
}
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));
}
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;
}
int iiod_client_set_kernel_buffers_count(struct iiod_client *client, int desc,
const struct iio_device *dev, unsigned int nb_blocks)
{
int ret;
char buf[1024];
snprintf(buf, sizeof(buf), "SET %s BUFFERS_COUNT %u\r\n",
iio_device_get_id(dev), nb_blocks);
iio_mutex_lock(client->lock);
ret = iiod_client_exec_command(client, desc, buf);
iio_mutex_unlock(client->lock);
return ret;
}
/*
* Disconnect the callback of the "value-changed" event from the progress
* spinbutton.
*/
void iio_spin_button_progress_deactivate(struct iio_widget *iio_w)
{
struct progress_data *pdata = iio_w->priv_progress;
if (GTK_IS_SPIN_BUTTON(iio_w->widget) == FALSE) {
const char *name = iio_device_get_name(iio_w->dev) ?:
iio_device_get_id(iio_w->dev);
printf("The widget connected to the attribute: %s of device: %s is not a GtkSpinButton\n",
iio_w->attr_name, name);
return;
}
g_signal_handler_disconnect(iio_w->widget, pdata->value_changed_hid);
}
/*
* Remove all implementation made to convert a iio_widget to a progress
* spinbutton.
*/
void iio_spin_button_remove_progress(struct iio_widget *iio_w)
{
if (GTK_IS_SPIN_BUTTON(iio_w->widget) == FALSE) {
const char *name = iio_device_get_name(iio_w->dev) ?:
iio_device_get_id(iio_w->dev);
printf("The widget connected to the attribute: %s of device: %s is not a GtkSpinButton\n",
iio_w->attr_name, name);
return;
}
iio_spin_button_progress_deactivate(iio_w);
if (iio_w->priv_progress)
free(iio_w->priv_progress);
}
ssize_t iiod_client_read_unlocked(struct iiod_client *client, int desc,
const struct iio_device *dev, void *dst, size_t len,
uint32_t *mask, size_t words)
{
unsigned int nb_channels = iio_device_get_channels_count(dev);
uintptr_t ptr = (uintptr_t) dst;
char buf[1024];
ssize_t ret, read = 0;
if (!len || words != (nb_channels + 31) / 32)
return -EINVAL;
snprintf(buf, sizeof(buf), "READBUF %s %lu\r\n",
iio_device_get_id(dev), (unsigned long) len);
ret = iiod_client_write_all(client, desc, buf, strlen(buf));
if (ret < 0)
return ret;
do {
int to_read;
ret = iiod_client_read_integer(client, desc, &to_read);
if (ret < 0)
return ret;
if (to_read < 0)
return (ssize_t) to_read;
if (!to_read)
break;
if (mask) {
ret = iiod_client_read_mask(client, desc, mask, words);
if (ret < 0)
return ret;
mask = NULL; /* We read the mask only once */
}
ret = iiod_client_read_all(client, desc, (char *) ptr, to_read);
if (ret < 0)
return ret;
ptr += ret;
read += ret;
len -= ret;
} while (len);
return read;
}
/*
* In order for the progress spinbutton to work, this function must be called
* to connect the required callback to the widget.
*/
void iio_spin_button_progress_activate(struct iio_widget *iio_w)
{
struct progress_data *pdata = iio_w->priv_progress;
if (GTK_IS_SPIN_BUTTON(iio_w->widget) == FALSE) {
const char *name = iio_device_get_name(iio_w->dev) ?:
iio_device_get_id(iio_w->dev);
printf("The widget connected to the attribute: %s of device: %s is not a GtkSpinButton\n",
iio_w->attr_name, name);
return;
}
pdata->value_changed_hid = g_signal_connect(G_OBJECT(iio_w->widget),
"value-changed", G_CALLBACK(delayed_spin_button_update_cb), iio_w);
}
/*
* Set a user function to be called when the progress is completed. The function
* can take one generic pointer as parameter.
*/
void iio_spin_button_set_on_complete_function(struct iio_widget *iio_w,
void(*on_complete)(void *), void *data)
{
struct progress_data *pdata = iio_w->priv_progress;
if (GTK_IS_SPIN_BUTTON(iio_w->widget) == FALSE) {
const char *name = iio_device_get_name(iio_w->dev) ?:
iio_device_get_id(iio_w->dev);
printf("The widget connected to the attribute: %s of device: %s is not a GtkSpinButton\n",
iio_w->attr_name, name);
return;
}
pdata->on_complete = on_complete;
pdata->on_complete_data = data;
}
int iiod_client_open_unlocked(struct iiod_client *client, int desc,
const struct iio_device *dev, size_t samples_count, bool cyclic)
{
char buf[1024], *ptr;
size_t i;
snprintf(buf, sizeof(buf), "OPEN %s %lu ",
iio_device_get_id(dev), (unsigned long) samples_count);
ptr = buf + strlen(buf);
for (i = dev->words; i > 0; i--, ptr += 8)
snprintf(ptr, (ptr - buf) + i * 8, "%08" PRIx32,
dev->mask[i - 1]);
strcpy(ptr, cyclic ? " CYCLIC\r\n" : "\r\n");
return iiod_client_exec_command(client, desc, buf);
}
/*
* Customises a iio_widget that contains a GtkSpinButton widget to be able to
* work as a progress spinbutton.
*/
void iio_spin_button_add_progress(struct iio_widget *iio_w)
{
struct progress_data *pdata;
if (GTK_IS_SPIN_BUTTON(iio_w->widget) == FALSE) {
const char *name = iio_device_get_name(iio_w->dev) ?:
iio_device_get_id(iio_w->dev);
printf("The widget connected to the attribute: %s of device: %s is not a GtkSpinButton\n",
iio_w->attr_name, name);
return;
}
pdata = malloc(sizeof(struct progress_data));
pdata->is_progress_spin_button = TRUE;
pdata->progress = 0.0;
pdata->timeoutID = -1;
pdata->value_changed_hid = -1;
pdata->skip_widget_save = FALSE;
pdata->on_complete_data = NULL;
pdata->on_complete = NULL;
iio_w->priv_progress = pdata;
}
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;
}
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;
}
static void build_channel_list(void)
{
GtkTreeIter iter, iter2, iter3;
unsigned int enabled;
char *device, *device2;
gboolean first = FALSE, iter3_valid = FALSE, loop, loop2, all = FALSE;
char dev_ch[256];
loop = gtk_tree_model_get_iter_first(GTK_TREE_MODEL (device_list_store), &iter);
gtk_list_store_clear(channel_list_store);
while (loop) {
gtk_tree_model_get(GTK_TREE_MODEL (device_list_store), &iter, 0, &device, 1, &enabled, -1);
if (enabled) {
struct iio_device *dev;
unsigned int i, nb_channels;
all = true;
/* is it already in the list? */
loop2 = gtk_tree_model_get_iter_first(GTK_TREE_MODEL (channel_list_store), &iter2);
if (loop2) {
first = TRUE;
iter3 = iter2;
iter3_valid = TRUE;
}
while (loop2) {
gtk_tree_model_get(GTK_TREE_MODEL (channel_list_store), &iter2, 2, &device2, -1);
if (!strcmp(device, device2))
break;
if (strcmp(device, device2) >= 0) {
first = FALSE;
iter3 = iter2;
}
g_free(device2);
loop2 = gtk_tree_model_iter_next(GTK_TREE_MODEL (channel_list_store), &iter2);
}
/* it is, so skip the rest */
if (loop2) {
loop = gtk_tree_model_iter_next(GTK_TREE_MODEL (device_list_store), &iter);
continue;
}
dev = get_device(device);
if (!dev)
continue;
nb_channels = iio_device_get_channels_count(dev);
for (i = 0; i < nb_channels; i++) {
struct iio_channel *chn =
iio_device_get_channel(dev, i);
const char *name, *id, *devid;
/* Must be input */
if (!is_valid_dmm_channel(chn))
continue;
/* find the name */
devid = iio_device_get_id(dev);
name = iio_channel_get_name(chn);
id = iio_channel_get_id(chn);
if (!name)
name = id;
if (iter3_valid) {
if (first) {
gtk_list_store_insert_before(channel_list_store, &iter2, &iter3);
first = FALSE;
} else if(gtk_tree_model_iter_next(GTK_TREE_MODEL (channel_list_store), &iter3))
gtk_list_store_insert_before(channel_list_store, &iter2, &iter3);
else
gtk_list_store_append(channel_list_store, &iter2);
} else {
gtk_list_store_append(channel_list_store, &iter2);
iter3_valid = TRUE;
}
snprintf(dev_ch, sizeof(dev_ch), "%s:%s",
device, name);
gtk_list_store_set(channel_list_store, &iter2,
0, dev_ch, /* device & channel name */
1, 0, /* On/Off */
2, devid, /* device ID */
3, id, /* channel ID */
-1);
iter3 = iter2;
}
} else {
loop2 = gtk_tree_model_get_iter_first(GTK_TREE_MODEL (channel_list_store), &iter2);
while (loop2) {
gtk_tree_model_get(GTK_TREE_MODEL (channel_list_store), &iter2, 2, &device2, -1);
if (!strcmp(device, device2)) {
loop2 = gtk_list_store_remove(channel_list_store, &iter2);
continue;
}
loop2 = gtk_tree_model_iter_next(GTK_TREE_MODEL (channel_list_store), &iter2);
}
}
loop = gtk_tree_model_iter_next(GTK_TREE_MODEL (device_list_store), &iter);
}
gtk_tree_sortable_set_sort_column_id(
GTK_TREE_SORTABLE(GTK_TREE_MODEL(channel_list_store)),
0, GTK_SORT_ASCENDING);
if (all)
gtk_widget_show(select_all_channels);
else
gtk_widget_hide(select_all_channels);
}