* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
+#include <stdlib.h>
+#include <glib/gstdio.h>
#include "protocol.h"
+#define SERIALCOMM "115200/8n1/flow=1"
+
SR_PRIV struct sr_dev_driver hameg_hmo_driver_info;
static struct sr_dev_driver *di = &hameg_hmo_driver_info;
+static const char *manufacturers[] = {
+ "HAMEG",
+};
+
+static const int32_t hwopts[] = {
+ SR_CONF_CONN,
+ SR_CONF_SERIALCOMM,
+};
+
+struct usb_id_info {
+ uint16_t vendor_id;
+ uint16_t product_id;
+};
+
+static struct usb_id_info ho_models[] = {
+ { 0x0403, 0xed72 }, /* HO720 */
+ { 0x0403, 0xed73 }, /* HO730 */
+};
+
+enum {
+ PG_INVALID = -1,
+ PG_NONE,
+ PG_ANALOG,
+ PG_DIGITAL,
+};
+
static int init(struct sr_context *sr_ctx)
{
return std_init(sr_ctx, di, LOG_PREFIX);
}
-static GSList *scan(GSList *options)
+/**
+ * Find USB serial devices via the USB vendor ID and product ID.
+ *
+ * @param vendor_id Vendor ID of the USB device.
+ * @param product_id Product ID of the USB device.
+ *
+ * @return A GSList of strings containing the path of the serial device or
+ * NULL if no serial device is found. The returned list must be freed
+ * by the caller.
+ */
+static GSList *auto_find_usb(uint16_t vendor_id, uint16_t product_id)
{
- struct drv_context *drvc;
- GSList *devices;
+#ifdef __linux__
+ const gchar *usb_dev;
+ const char device_tree[] = "/sys/bus/usb/devices/";
+ GDir *devices_dir, *device_dir;
+ GSList *l = NULL;
+ GSList *tty_devs;
+ GSList *matched_paths;
+ FILE *fd;
+ char tmp[5];
+ gchar *vendor_path, *product_path, *path_copy;
+ gchar *prefix, *subdir_path, *device_path, *tty_path;
+ unsigned long read_vendor_id, read_product_id;
+ const char *file;
+
+ l = NULL;
+ tty_devs = NULL;
+ matched_paths = NULL;
+
+ if (!(devices_dir = g_dir_open(device_tree, 0, NULL)))
+ return NULL;
+
+ /*
+ * Find potential candidates using the vendor ID and product ID
+ * and store them in matched_paths.
+ */
+ while ((usb_dev = g_dir_read_name(devices_dir))) {
+ vendor_path = g_strconcat(device_tree,
+ usb_dev, "/idVendor", NULL);
+ product_path = g_strconcat(device_tree,
+ usb_dev, "/idProduct", NULL);
+
+ if (!g_file_test(vendor_path, G_FILE_TEST_EXISTS) ||
+ !g_file_test(product_path, G_FILE_TEST_EXISTS))
+ goto skip_device;
+
+ if ((fd = g_fopen(vendor_path, "r")) == NULL)
+ goto skip_device;
+
+ if (fgets(tmp, sizeof(tmp), fd) == NULL) {
+ fclose(fd);
+ goto skip_device;
+ }
+ read_vendor_id = strtoul(tmp, NULL, 16);
+
+ fclose(fd);
+
+ if ((fd = g_fopen(product_path, "r")) == NULL)
+ goto skip_device;
+
+ if (fgets(tmp, sizeof(tmp), fd) == NULL) {
+ fclose(fd);
+ goto skip_device;
+ }
+ read_product_id = strtoul(tmp, NULL, 16);
+
+ fclose(fd);
+
+ if (vendor_id == read_vendor_id &&
+ product_id == read_product_id) {
+ path_copy = g_strdup(usb_dev);
+ matched_paths = g_slist_prepend(matched_paths,
+ path_copy);
+ }
+
+skip_device:
+ g_free(vendor_path);
+ g_free(product_path);
+ }
+ g_dir_close(devices_dir);
+
+ /* For every matched device try to find a ttyUSBX subfolder. */
+ for (l = matched_paths; l; l = l->next) {
+ subdir_path = NULL;
+
+ device_path = g_strconcat(device_tree, l->data, NULL);
+
+ if (!(device_dir = g_dir_open(device_path, 0, NULL))) {
+ g_free(device_path);
+ continue;
+ }
+
+ prefix = g_strconcat(l->data, ":", NULL);
+
+ while ((file = g_dir_read_name(device_dir))) {
+ if (g_str_has_prefix(file, prefix)) {
+ subdir_path = g_strconcat(device_path,
+ "/", file, NULL);
+ break;
+ }
+ }
+ g_dir_close(device_dir);
+
+ g_free(prefix);
+ g_free(device_path);
+
+ if (subdir_path) {
+ if (!(device_dir = g_dir_open(subdir_path, 0, NULL))) {
+ g_free(subdir_path);
+ continue;
+ }
+ g_free(subdir_path);
+
+ while ((file = g_dir_read_name(device_dir))) {
+ if (g_str_has_prefix(file, "ttyUSB")) {
+ tty_path = g_strconcat("/dev/",
+ file, NULL);
+ sr_dbg("Found USB device %04x:%04x attached to %s.",
+ vendor_id, product_id, tty_path);
+ tty_devs = g_slist_prepend(tty_devs,
+ tty_path);
+ break;
+ }
+ }
+ g_dir_close(device_dir);
+ }
+ }
+ g_slist_free_full(matched_paths, g_free);
+
+ return tty_devs;
+#else
+ (void)vendor_id;
+ (void)product_id;
+
+ return NULL;
+#endif
+}
+
+static int check_manufacturer(const char *manufacturer)
+{
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(manufacturers); ++i)
+ if (!strcmp(manufacturer, manufacturers[i]))
+ return SR_OK;
+
+ return SR_ERR;
+}
+
+static struct sr_dev_inst *hmo_probe_serial_device(const char *serial_device,
+ const char *serial_options)
+{
+ struct sr_dev_inst *sdi;
+ struct dev_context *devc;
+ struct sr_scpi_hw_info *hw_info;
+ struct sr_scpi_dev_inst *scpi;
+
+ sdi = NULL;
+ devc = NULL;
+ scpi = NULL;
+ hw_info = NULL;
+
+ if (!(scpi = scpi_dev_inst_new(serial_device, serial_options)))
+ goto fail;
+
+ sr_info("Probing %s.", serial_device);
+ if (sr_scpi_open(scpi) != SR_OK)
+ goto fail;
+
+ if (sr_scpi_get_hw_id(scpi, &hw_info) != SR_OK) {
+ sr_info("Couldn't get IDN response.");
+ goto fail;
+ }
+
+ if (check_manufacturer(hw_info->manufacturer) != SR_OK)
+ goto fail;
+
+ if (!(sdi = sr_dev_inst_new(0, SR_ST_ACTIVE,
+ hw_info->manufacturer, hw_info->model,
+ hw_info->firmware_version))) {
+ goto fail;
+ }
+ sr_scpi_hw_info_free(hw_info);
+ hw_info = NULL;
+
+ if (!(devc = g_try_malloc0(sizeof(struct dev_context))))
+ goto fail;
+
+ sdi->driver = di;
+ sdi->priv = devc;
+ sdi->inst_type = SR_INST_SCPI;
+ sdi->conn = scpi;
+
+ if (hmo_init_device(sdi) != SR_OK)
+ goto fail;
+
+ sr_scpi_close(sdi->conn);
+
+ sdi->status = SR_ST_INACTIVE;
+
+ return sdi;
- (void)options;
+fail:
+ if (hw_info)
+ sr_scpi_hw_info_free(hw_info);
+ if (scpi)
+ sr_scpi_free(scpi);
+ if (sdi)
+ sr_dev_inst_free(sdi);
+ if (devc)
+ g_free(devc);
+ return NULL;
+}
+
+static GSList *scan(GSList *options)
+{
+ GSList *devices;
+ struct drv_context *drvc;
+ struct sr_dev_inst *sdi;
+ const char *serial_device, *serial_options;
+ GSList *l, *tty_devs;
+ unsigned int i;
+
+ serial_device = NULL;
+ serial_options = SERIALCOMM;
+ sdi = NULL;
devices = NULL;
drvc = di->priv;
drvc->instances = NULL;
- /* TODO: scan for devices, either based on a SR_CONF_CONN option
- * or on a USB scan. */
+ if (sr_serial_extract_options(options, &serial_device,
+ &serial_options) == SR_OK) {
+ sdi = hmo_probe_serial_device(serial_device, serial_options);
+ if (sdi != NULL) {
+ devices = g_slist_append(devices, sdi);
+ drvc->instances = g_slist_append(drvc->instances, sdi);
+ }
+ } else {
+ tty_devs = NULL;
+
+ for (i = 0; i < ARRAY_SIZE(ho_models); i++) {
+ if ((l = auto_find_usb(ho_models[i].vendor_id,
+ ho_models[i].product_id)) == NULL)
+ continue;
+ tty_devs = g_slist_concat(tty_devs, l);
+ }
+
+ for (l = tty_devs; l; l = l->next) {
+ sdi = hmo_probe_serial_device(l->data, serial_options);
+ if (sdi != NULL) {
+ devices = g_slist_append(devices, sdi);
+ drvc->instances = g_slist_append(drvc->instances, sdi);
+ }
+ }
+
+ g_slist_free_full(tty_devs, g_free);
+ }
return devices;
}
return ((struct drv_context *)(di->priv))->instances;
}
+static void clear_helper(void *priv)
+{
+ unsigned int i;
+ struct dev_context *devc;
+ struct scope_config *model;
+
+ devc = priv;
+ model = devc->model_config;
+
+ hmo_scope_state_free(devc->model_state);
+
+ for (i = 0; i < model->analog_channels; ++i)
+ g_slist_free(devc->analog_groups[i].probes);
+
+ for (i = 0; i < model->digital_pods; ++i) {
+ g_slist_free(devc->digital_groups[i].probes);
+ g_free(devc->digital_groups[i].name);
+ }
+
+ g_free(devc->analog_groups);
+ g_free(devc->digital_groups);
+
+ g_free(devc);
+}
+
static int dev_clear(void)
{
- return std_dev_clear(di, NULL);
+ return std_dev_clear(di, clear_helper);
}
static int dev_open(struct sr_dev_inst *sdi)
{
- (void)sdi;
+ if (sdi->status != SR_ST_ACTIVE && sr_scpi_open(sdi->conn) != SR_OK)
+ return SR_ERR;
- /* TODO: get handle from sdi->conn and open it. */
+ if (hmo_scope_state_get(sdi) != SR_OK)
+ return SR_ERR;
sdi->status = SR_ST_ACTIVE;
static int dev_close(struct sr_dev_inst *sdi)
{
- (void)sdi;
+ if (sdi->status == SR_ST_INACTIVE)
+ return SR_OK;
- /* TODO: get handle from sdi->conn and close it. */
+ sr_scpi_close(sdi->conn);
sdi->status = SR_ST_INACTIVE;
{
dev_clear();
- /* TODO: free other driver resources, if any. */
-
return SR_OK;
}
-static int config_get(int key, GVariant **data, const struct sr_dev_inst *sdi)
+static int check_probe_group(struct dev_context *devc,
+ const struct sr_probe_group *probe_group)
{
- int ret;
+ unsigned int i;
+ struct scope_config *model;
+
+ model = devc->model_config;
+
+ if (!probe_group)
+ return PG_NONE;
- (void)sdi;
- (void)data;
+ for (i = 0; i < model->analog_channels; ++i)
+ if (probe_group == &devc->analog_groups[i])
+ return PG_ANALOG;
+
+ for (i = 0; i < model->digital_pods; ++i)
+ if (probe_group == &devc->digital_groups[i])
+ return PG_DIGITAL;
+
+ sr_err("Invalid probe group specified.");
+
+ return PG_INVALID;
+}
+
+static int config_get(int key, GVariant **data, const struct sr_dev_inst *sdi,
+ const struct sr_probe_group *probe_group)
+{
+ int ret, pg_type;
+ unsigned int i;
+ struct dev_context *devc;
+ struct scope_config *model;
+ struct scope_state *state;
+
+ if (!sdi || !(devc = sdi->priv))
+ return SR_ERR_ARG;
+
+ if ((pg_type = check_probe_group(devc, probe_group)) == PG_INVALID)
+ return SR_ERR;
+
+ ret = SR_ERR_NA;
+ model = devc->model_config;
+ state = devc->model_state;
- ret = SR_OK;
switch (key) {
- /* TODO */
+ case SR_CONF_NUM_TIMEBASE:
+ *data = g_variant_new_int32(model->num_xdivs);
+ ret = SR_OK;
+ break;
+ case SR_CONF_NUM_VDIV:
+ if (pg_type == PG_NONE) {
+ sr_err("No probe group specified.");
+ return SR_ERR_PROBE_GROUP;
+ } else if (pg_type == PG_ANALOG) {
+ for (i = 0; i < model->analog_channels; ++i) {
+ if (probe_group != &devc->analog_groups[i])
+ continue;
+ *data = g_variant_new_int32(model->num_ydivs);
+ ret = SR_OK;
+ break;
+ }
+
+ } else {
+ ret = SR_ERR_NA;
+ }
+ break;
+ case SR_CONF_TRIGGER_SOURCE:
+ *data = g_variant_new_string((*model->trigger_sources)[state->trigger_source]);
+ ret = SR_OK;
+ break;
+ case SR_CONF_COUPLING:
+ if (pg_type == PG_NONE) {
+ sr_err("No probe group specified.");
+ return SR_ERR_PROBE_GROUP;
+ } else if (pg_type == PG_ANALOG) {
+ for (i = 0; i < model->analog_channels; ++i) {
+ if (probe_group != &devc->analog_groups[i])
+ continue;
+ *data = g_variant_new_string((*model->coupling_options)[state->analog_channels[i].coupling]);
+ ret = SR_OK;
+ break;
+ }
+
+ } else {
+ ret = SR_ERR_NA;
+ }
+ break;
+ case SR_CONF_SAMPLERATE:
+ *data = g_variant_new_uint64(state->sample_rate);
+ ret = SR_OK;
+ break;
default:
- return SR_ERR_NA;
+ ret = SR_ERR_NA;
}
return ret;
}
-static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi)
+static GVariant *build_tuples(const uint64_t (*array)[][2], unsigned int n)
{
- int ret;
+ unsigned int i;
+ GVariant *rational[2];
+ GVariantBuilder gvb;
- (void)data;
+ g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR_DEV_CLOSED;
+ for (i = 0; i < n; i++) {
+ rational[0] = g_variant_new_uint64((*array)[i][0]);
+ rational[1] = g_variant_new_uint64((*array)[i][1]);
+
+ /* FIXME: Valgrind reports a memory leak here. */
+ g_variant_builder_add_value(&gvb, g_variant_new_tuple(rational, 2));
+ }
+
+ return g_variant_builder_end(&gvb);
+}
+
+static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi,
+ const struct sr_probe_group *probe_group)
+{
+ int ret, pg_type;
+ unsigned int i, j;
+ char command[MAX_COMMAND_SIZE], float_str[30];
+ struct dev_context *devc;
+ struct scope_config *model;
+ struct scope_state *state;
+ const char *tmp;
+ uint64_t p, q;
+ double tmp_d;
+ gboolean update_sample_rate;
+
+ if (!sdi || !(devc = sdi->priv))
+ return SR_ERR_ARG;
+
+ if ((pg_type = check_probe_group(devc, probe_group)) == PG_INVALID)
+ return SR_ERR;
+
+ model = devc->model_config;
+ state = devc->model_state;
+ update_sample_rate = FALSE;
+
+ ret = SR_ERR_NA;
- ret = SR_OK;
switch (key) {
- /* TODO */
+ case SR_CONF_LIMIT_FRAMES:
+ devc->frame_limit = g_variant_get_uint64(data);
+ ret = SR_OK;
+ break;
+ case SR_CONF_TRIGGER_SOURCE:
+ tmp = g_variant_get_string(data, NULL);
+ for (i = 0; (*model->trigger_sources)[i]; i++) {
+ if (g_strcmp0(tmp, (*model->trigger_sources)[i]) != 0)
+ continue;
+ state->trigger_source = i;
+ g_snprintf(command, sizeof(command),
+ (*model->scpi_dialect)[SCPI_CMD_SET_TRIGGER_SOURCE],
+ (*model->trigger_sources)[i]);
+
+ ret = sr_scpi_send(sdi->conn, command);
+ break;
+ }
+ break;
+ case SR_CONF_VDIV:
+ if (pg_type == PG_NONE) {
+ sr_err("No probe group specified.");
+ return SR_ERR_PROBE_GROUP;
+ }
+
+ g_variant_get(data, "(tt)", &p, &q);
+
+ for (i = 0; i < model->num_vdivs; i++) {
+ if (p != (*model->vdivs)[i][0] ||
+ q != (*model->vdivs)[i][1])
+ continue;
+ for (j = 1; j <= model->analog_channels; ++j) {
+ if (probe_group != &devc->analog_groups[j - 1])
+ continue;
+ state->analog_channels[j - 1].vdiv = i;
+ g_ascii_formatd(float_str, sizeof(float_str), "%E", (float) p / q);
+ g_snprintf(command, sizeof(command),
+ (*model->scpi_dialect)[SCPI_CMD_SET_VERTICAL_DIV],
+ j, float_str);
+
+ if (sr_scpi_send(sdi->conn, command) != SR_OK ||
+ sr_scpi_get_opc(sdi->conn) != SR_OK)
+ return SR_ERR;
+
+ break;
+ }
+
+ ret = SR_OK;
+ break;
+ }
+ break;
+ case SR_CONF_TIMEBASE:
+ g_variant_get(data, "(tt)", &p, &q);
+
+ for (i = 0; i < model->num_timebases; i++) {
+ if (p != (*model->timebases)[i][0] ||
+ q != (*model->timebases)[i][1])
+ continue;
+ state->timebase = i;
+ g_ascii_formatd(float_str, sizeof(float_str), "%E", (float) p / q);
+ g_snprintf(command, sizeof(command),
+ (*model->scpi_dialect)[SCPI_CMD_SET_TIMEBASE],
+ float_str);
+
+ ret = sr_scpi_send(sdi->conn, command);
+ update_sample_rate = TRUE;
+ break;
+ }
+ break;
+ case SR_CONF_HORIZ_TRIGGERPOS:
+ tmp_d = g_variant_get_double(data);
+
+ if (tmp_d < 0.0 || tmp_d > 1.0)
+ return SR_ERR;
+
+ state->horiz_triggerpos = -(tmp_d - 0.5) * state->timebase * model->num_xdivs;
+ g_snprintf(command, sizeof(command),
+ (*model->scpi_dialect)[SCPI_CMD_SET_HORIZ_TRIGGERPOS],
+ state->horiz_triggerpos);
+
+ ret = sr_scpi_send(sdi->conn, command);
+ break;
+ case SR_CONF_TRIGGER_SLOPE:
+ tmp = g_variant_get_string(data, NULL);
+
+ if (!tmp || !(tmp[0] == 'f' || tmp[0] == 'r'))
+ return SR_ERR_ARG;
+
+ state->trigger_slope = (tmp[0] == 'r') ? 0 : 1;
+
+ g_snprintf(command, sizeof(command),
+ (*model->scpi_dialect)[SCPI_CMD_SET_TRIGGER_SLOPE],
+ (state->trigger_slope == 0) ? "POS" : "NEG");
+
+ ret = sr_scpi_send(sdi->conn, command);
+ break;
+ case SR_CONF_COUPLING:
+ if (pg_type == PG_NONE) {
+ sr_err("No probe group specified.");
+ return SR_ERR_PROBE_GROUP;
+ }
+
+ tmp = g_variant_get_string(data, NULL);
+
+ for (i = 0; (*model->coupling_options)[i]; i++) {
+ if (strcmp(tmp, (*model->coupling_options)[i]) != 0)
+ continue;
+ for (j = 1; j <= model->analog_channels; ++j) {
+ if (probe_group != &devc->analog_groups[j - 1])
+ continue;
+ state->analog_channels[j-1].coupling = i;
+
+ g_snprintf(command, sizeof(command),
+ (*model->scpi_dialect)[SCPI_CMD_SET_COUPLING],
+ j, tmp);
+
+ if (sr_scpi_send(sdi->conn, command) != SR_OK ||
+ sr_scpi_get_opc(sdi->conn) != SR_OK)
+ return SR_ERR;
+ break;
+ }
+
+ ret = SR_OK;
+ break;
+ }
+ break;
default:
ret = SR_ERR_NA;
+ break;
}
+ if (ret == SR_OK)
+ ret = sr_scpi_get_opc(sdi->conn);
+
+ if (ret == SR_OK && update_sample_rate)
+ ret = hmo_update_sample_rate(sdi);
+
return ret;
}
-static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi)
+static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi,
+ const struct sr_probe_group *probe_group)
{
- int ret;
+ int pg_type;
+ struct dev_context *devc;
+ struct scope_config *model;
+
+ if (!sdi || !(devc = sdi->priv))
+ return SR_ERR_ARG;
- (void)sdi;
- (void)data;
+ if ((pg_type = check_probe_group(devc, probe_group)) == PG_INVALID)
+ return SR_ERR;
+
+ model = devc->model_config;
- ret = SR_OK;
switch (key) {
- /* TODO */
+ case SR_CONF_DEVICE_OPTIONS:
+ if (pg_type == PG_NONE) {
+ *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
+ model->hw_caps, model->num_hwcaps,
+ sizeof(int32_t));
+ } else if (pg_type == PG_ANALOG) {
+ *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
+ model->analog_hwcaps, model->num_analog_hwcaps,
+ sizeof(int32_t));
+ } else {
+ *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
+ NULL, 0, sizeof(int32_t));
+ }
+ break;
+ case SR_CONF_COUPLING:
+ if (pg_type == PG_NONE)
+ return SR_ERR_PROBE_GROUP;
+ *data = g_variant_new_strv(*model->coupling_options,
+ g_strv_length((char **)*model->coupling_options));
+ break;
+ case SR_CONF_TRIGGER_SOURCE:
+ *data = g_variant_new_strv(*model->trigger_sources,
+ g_strv_length((char **)*model->trigger_sources));
+ break;
+ case SR_CONF_TIMEBASE:
+ *data = build_tuples(model->timebases, model->num_timebases);
+ break;
+ case SR_CONF_VDIV:
+ if (pg_type == PG_NONE)
+ return SR_ERR_PROBE_GROUP;
+ *data = build_tuples(model->vdivs, model->num_vdivs);
+ break;
default:
return SR_ERR_NA;
}
- return ret;
+ return SR_OK;
}
-static int dev_acquisition_start(const struct sr_dev_inst *sdi,
- void *cb_data)
+SR_PRIV int hmo_request_data(const struct sr_dev_inst *sdi)
{
- (void)sdi;
- (void)cb_data;
+ char command[MAX_COMMAND_SIZE];
+ struct sr_probe *probe;
+ struct dev_context *devc;
+ struct scope_config *model;
+
+ devc = sdi->priv;
+ model = devc->model_config;
+
+ probe = devc->current_probe->data;
+
+ switch (probe->type) {
+ case SR_PROBE_ANALOG:
+ g_snprintf(command, sizeof(command),
+ (*model->scpi_dialect)[SCPI_CMD_GET_ANALOG_DATA],
+ probe->index + 1);
+ break;
+ case SR_PROBE_LOGIC:
+ g_snprintf(command, sizeof(command),
+ (*model->scpi_dialect)[SCPI_CMD_GET_DIG_DATA],
+ probe->index < 8 ? 1 : 2);
+ break;
+ default:
+ sr_err("Invalid probe type.");
+ break;
+ }
+
+ return sr_scpi_send(sdi->conn, command);
+}
+
+static int hmo_check_probes(GSList *probes)
+{
+ GSList *l;
+ struct sr_probe *probe;
+ gboolean enabled_pod1, enabled_pod2, enabled_chan3, enabled_chan4;
+
+ enabled_pod1 = enabled_pod2 = enabled_chan3 = enabled_chan4 = FALSE;
+
+ for (l = probes; l; l = l->next) {
+ probe = l->data;
+ switch (probe->type) {
+ case SR_PROBE_ANALOG:
+ if (probe->index == 2)
+ enabled_chan3 = TRUE;
+ else if (probe->index == 3)
+ enabled_chan4 = TRUE;
+ break;
+ case SR_PROBE_LOGIC:
+ if (probe->index < 8)
+ enabled_pod1 = TRUE;
+ else
+ enabled_pod2 = TRUE;
+ break;
+ default:
+ return SR_ERR;
+ }
+ }
+
+ if ((enabled_pod1 && enabled_chan3) ||
+ (enabled_pod2 && enabled_chan4))
+ return SR_ERR;
+
+ return SR_OK;
+}
+
+static int hmo_setup_probes(const struct sr_dev_inst *sdi)
+{
+ GSList *l;
+ unsigned int i;
+ gboolean *pod_enabled, setup_changed;
+ char command[MAX_COMMAND_SIZE];
+ struct scope_state *state;
+ struct scope_config *model;
+ struct sr_probe *probe;
+ struct dev_context *devc;
+ struct sr_scpi_dev_inst *scpi;
+
+ devc = sdi->priv;
+ scpi = sdi->conn;
+ state = devc->model_state;
+ model = devc->model_config;
+ setup_changed = FALSE;
+
+ pod_enabled = g_try_malloc0(sizeof(gboolean) * model->digital_pods);
+
+ for (l = sdi->probes; l; l = l->next) {
+ probe = l->data;
+ switch (probe->type) {
+ case SR_PROBE_ANALOG:
+ if (probe->enabled == state->analog_channels[probe->index].state)
+ break;
+ g_snprintf(command, sizeof(command),
+ (*model->scpi_dialect)[SCPI_CMD_SET_ANALOG_CHAN_STATE],
+ probe->index + 1, probe->enabled);
+
+ if (sr_scpi_send(scpi, command) != SR_OK)
+ return SR_ERR;
+ state->analog_channels[probe->index].state = probe->enabled;
+ setup_changed = TRUE;
+ break;
+ case SR_PROBE_LOGIC:
+ /*
+ * A digital POD needs to be enabled for every group of
+ * 8 probes.
+ */
+ if (probe->enabled)
+ pod_enabled[probe->index < 8 ? 0 : 1] = TRUE;
+
+ if (probe->enabled == state->digital_channels[probe->index])
+ break;
+ g_snprintf(command, sizeof(command),
+ (*model->scpi_dialect)[SCPI_CMD_SET_DIG_CHAN_STATE],
+ probe->index, probe->enabled);
+
+ if (sr_scpi_send(scpi, command) != SR_OK)
+ return SR_ERR;
+
+ state->digital_channels[probe->index] = probe->enabled;
+ setup_changed = TRUE;
+ break;
+ default:
+ return SR_ERR;
+ }
+ }
+
+ for (i = 1; i <= model->digital_pods; ++i) {
+ if (state->digital_pods[i - 1] == pod_enabled[i - 1])
+ continue;
+ g_snprintf(command, sizeof(command),
+ (*model->scpi_dialect)[SCPI_CMD_SET_DIG_POD_STATE],
+ i, pod_enabled[i - 1]);
+ if (sr_scpi_send(scpi, command) != SR_OK)
+ return SR_ERR;
+ state->digital_pods[i - 1] = pod_enabled[i - 1];
+ setup_changed = TRUE;
+ }
+
+ g_free(pod_enabled);
+
+ if (setup_changed && hmo_update_sample_rate(sdi) != SR_OK)
+ return SR_ERR;
+
+ return SR_OK;
+}
+
+static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
+{
+ GSList *l;
+ gboolean digital_added;
+ struct sr_probe *probe;
+ struct dev_context *devc;
+ struct sr_scpi_dev_inst *scpi;
if (sdi->status != SR_ST_ACTIVE)
return SR_ERR_DEV_CLOSED;
- /* TODO: configure hardware, reset acquisition state, set up
- * callbacks and send header packet. */
+ scpi = sdi->conn;
+ devc = sdi->priv;
+ digital_added = FALSE;
+
+ for (l = sdi->probes; l; l = l->next) {
+ probe = l->data;
+ if (!probe->enabled)
+ continue;
+ /* Only add a single digital probe. */
+ if (probe->type != SR_PROBE_LOGIC || !digital_added) {
+ devc->enabled_probes = g_slist_append(
+ devc->enabled_probes, probe);
+ if (probe->type == SR_PROBE_LOGIC)
+ digital_added = TRUE;
+ }
+ }
+
+ if (!devc->enabled_probes)
+ return SR_ERR;
- return SR_OK;
+ if (hmo_check_probes(devc->enabled_probes) != SR_OK) {
+ sr_err("Invalid probe configuration specified!");
+ return SR_ERR_NA;
+ }
+
+ if (hmo_setup_probes(sdi) != SR_OK) {
+ sr_err("Failed to setup probe configuration!");
+ return SR_ERR;
+ }
+
+ sr_scpi_source_add(scpi, G_IO_IN, 50, hmo_receive_data, (void *)sdi);
+
+ /* Send header packet to the session bus. */
+ std_session_send_df_header(cb_data, LOG_PREFIX);
+
+ devc->current_probe = devc->enabled_probes;
+
+ return hmo_request_data(sdi);
}
static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
{
+ struct dev_context *devc;
+ struct sr_scpi_dev_inst *scpi;
+ struct sr_datafeed_packet packet;
+
(void)cb_data;
+ packet.type = SR_DF_END;
+ packet.payload = NULL;
+ sr_session_send(sdi, &packet);
+
if (sdi->status != SR_ST_ACTIVE)
return SR_ERR_DEV_CLOSED;
- /* TODO: stop acquisition. */
+ devc = sdi->priv;
+
+ devc->num_frames = 0;
+ g_slist_free(devc->enabled_probes);
+ devc->enabled_probes = NULL;
+ scpi = sdi->conn;
+ sr_scpi_source_remove(scpi);
return SR_OK;
}
SR_PRIV struct sr_dev_driver hameg_hmo_driver_info = {
.name = "hameg-hmo",
- .longname = "Hameg HMO scope driver",
+ .longname = "Hameg HMO",
.api_version = 1,
.init = init,
.cleanup = cleanup,
projects / libsigrok.git / blobdiff