*/
#include <config.h>
+#include <string.h>
#include "protocol.h"
-static struct sr_dev_driver itech_it8500_driver_info;
+#define MIN_SAMPLE_RATE SR_HZ(1)
+#define MAX_SAMPLE_RATE SR_HZ(60)
+#define DEFAULT_SAMPLE_RATE SR_HZ(10)
-static GSList *scan(struct sr_dev_driver *di, GSList *options)
-{
- struct drv_context *drvc;
- GSList *devices;
-
- (void)options;
+static const uint32_t scanopts[] = {
+ SR_CONF_CONN,
+ SR_CONF_SERIALCOMM,
+};
- devices = NULL;
- drvc = di->context;
- drvc->instances = NULL;
+static const uint32_t drvopts[] = {
+ SR_CONF_ELECTRONIC_LOAD,
+};
- /* TODO: scan for devices, either based on a SR_CONF_CONN option
- * or on a USB scan. */
+static const uint32_t devopts[] = {
+ SR_CONF_CONTINUOUS,
+ SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
+ SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET,
+ SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
+};
- return devices;
-}
+static const uint32_t devopts_cg[] = {
+ SR_CONF_ENABLED | SR_CONF_GET | SR_CONF_SET,
+ SR_CONF_REGULATION | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
+ SR_CONF_VOLTAGE | SR_CONF_GET,
+ SR_CONF_VOLTAGE_TARGET | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
+ SR_CONF_CURRENT | SR_CONF_GET,
+ SR_CONF_CURRENT_LIMIT | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
+ SR_CONF_POWER | SR_CONF_GET,
+ SR_CONF_POWER_TARGET | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
+ SR_CONF_RESISTANCE_TARGET | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
+ SR_CONF_OVER_VOLTAGE_PROTECTION_ENABLED | SR_CONF_GET,
+ SR_CONF_OVER_VOLTAGE_PROTECTION_ACTIVE | SR_CONF_GET,
+ SR_CONF_OVER_VOLTAGE_PROTECTION_THRESHOLD | SR_CONF_GET | SR_CONF_SET,
+ SR_CONF_OVER_CURRENT_PROTECTION_ENABLED | SR_CONF_GET,
+ SR_CONF_OVER_CURRENT_PROTECTION_ACTIVE | SR_CONF_GET,
+ SR_CONF_OVER_CURRENT_PROTECTION_THRESHOLD | SR_CONF_GET | SR_CONF_SET,
+ SR_CONF_UNDER_VOLTAGE_CONDITION | SR_CONF_GET,
+ SR_CONF_UNDER_VOLTAGE_CONDITION_ACTIVE | SR_CONF_GET,
+ SR_CONF_UNDER_VOLTAGE_CONDITION_THRESHOLD | SR_CONF_GET | SR_CONF_SET,
+ SR_CONF_OVER_TEMPERATURE_PROTECTION | SR_CONF_GET,
+ SR_CONF_OVER_TEMPERATURE_PROTECTION_ACTIVE | SR_CONF_GET,
+};
-static int dev_open(struct sr_dev_inst *sdi)
-{
- (void)sdi;
+static const uint64_t samplerates[] = {
+ SR_HZ(1),
+ SR_HZ(2),
+ SR_HZ(5),
+ SR_HZ(10),
+ SR_HZ(15),
+ SR_HZ(20),
+ SR_HZ(30),
+ SR_HZ(40),
+ SR_HZ(50),
+ SR_HZ(60),
+};
- /* TODO: get handle from sdi->conn and open it. */
+static const char *default_serial_parameters[] = {
+ "9600/8n1", /* Factory default. */
+ "38400/8n1",
+ "19200/8n1",
+ "4800/8n1",
+ NULL,
+};
- return SR_OK;
-}
+static struct sr_dev_driver itech_it8500_driver_info;
-static int dev_close(struct sr_dev_inst *sdi)
+static GSList *scan(struct sr_dev_driver *di, GSList *options)
{
- (void)sdi;
+ struct sr_dev_inst *sdi;
+ struct sr_config *conf;
+ struct sr_serial_dev_inst *serial;
+ struct sr_channel_group *cg;
+ struct sr_channel *ch;
+ struct dev_context *devc;
+ const char *custom_serial_parameters[2];
+ const char **serial_parameters;
+ const char *conn, *serialcomm;
+ GSList *l;
+ struct itech_it8500_cmd_packet *cmd, *response;
+ uint8_t fw_major, fw_minor;
+ const uint8_t *p;
+ char *unit_model, *unit_serial, *unit_barcode;
+ double max_i, max_v, min_v, max_p, max_r, min_r;
+ uint64_t max_samplerate;
+
+ size_t u, i;
+ int ret;
+
+ cmd = g_malloc0(sizeof(*cmd));
+ devc = g_malloc0(sizeof(*devc));
+ sdi = g_malloc0(sizeof(*sdi));
+ if (!cmd || !devc || !sdi)
+ return NULL;
+
+ serial = NULL;
+ response = NULL;
+ unit_model = NULL;
+ unit_serial = NULL;
+
+ /*
+ * Use a list of typical parameters for serial communication by
+ * default. Prefer user specified parameters when available.
+ * Lack of a user specified serial port is fatal.
+ */
+ conn = NULL;
+ serialcomm = NULL;
+ serial_parameters = default_serial_parameters;
+ for (l = options; l; l = l->next) {
+ conf = l->data;
+ switch (conf->key) {
+ case SR_CONF_CONN:
+ conn = g_variant_get_string(conf->data, NULL);
+ break;
+ case SR_CONF_SERIALCOMM:
+ serialcomm = g_variant_get_string(conf->data, NULL);
+ custom_serial_parameters[0] = serialcomm;
+ custom_serial_parameters[1] = NULL;
+ serial_parameters = custom_serial_parameters;
+ break;
+ }
+ }
+ if (!conn)
+ goto error;
+
+ /*
+ * Try different serial parameters in the list
+ * until we get a response (or none at all).
+ */
+ sr_info("Probing serial port: %s", conn);
+ for (i = 0; (serialcomm = serial_parameters[i]); i++) {
+ serial = sr_serial_dev_inst_new(conn, serialcomm);
+ if (serial_open(serial, SERIAL_RDWR) != SR_OK)
+ goto error;
+ serial_flush(serial);
+
+ cmd->address = 0xff; /* Use "broadcast" address. */
+ cmd->command = CMD_GET_MODEL_INFO;
+ if (itech_it8500_send_cmd(serial, cmd, &response) == SR_OK)
+ break;
+
+ serial_close(serial);
+ sr_serial_dev_inst_free(serial);
+ serial = NULL;
+ }
+ if (!serialcomm)
+ goto error;
+
+ /*
+ * The "dense" response string consists of several fields. Grab
+ * integer data before putting terminators in their place to
+ * grab text strings afterwards. Order is important here.
+ */
+ devc->address = response->address;
+ fw_major = response->data[6];
+ fw_minor = response->data[5];
+ response->data[5] = 0;
+ unit_model = g_strdup((const char *)&response->data[0]);
+ response->data[17] = 0;
+ unit_serial = g_strdup((const char *)&response->data[7]);
+ sr_info("Model name: %s (v%x.%02x)", unit_model, fw_major, fw_minor);
+ sr_info("Address: %d", devc->address);
+ sr_info("Serial number: %s", unit_serial);
+
+ sdi->status = SR_ST_INACTIVE;
+ sdi->conn = serial;
+ sdi->inst_type = SR_INST_SERIAL;
+ sdi->driver = &itech_it8500_driver_info;
+ sdi->priv = devc;
+ g_mutex_init(&devc->mutex);
+
+ /*
+ * Calculate maxium "safe" sample rate based on serial connection
+ * speed / bitrate.
+ */
+ max_samplerate = serial->comm_params.bit_rate * 15 / 9600;
+ if (max_samplerate < 15)
+ max_samplerate = 10;
+ if (max_samplerate > MAX_SAMPLE_RATE)
+ max_samplerate = MAX_SAMPLE_RATE;
+ devc->max_sample_rate_idx = 0;
+ for (u = 0; u < ARRAY_SIZE(samplerates); u++) {
+ if (samplerates[u] > max_samplerate)
+ break;
+ devc->max_sample_rate_idx = u;
+ }
+ devc->sample_rate = DEFAULT_SAMPLE_RATE;
+
+ /*
+ * Get full serial number (barcode).
+ */
+ cmd->address = devc->address;
+ cmd->command = CMD_GET_BARCODE_INFO;
+ if (itech_it8500_send_cmd(serial, cmd, &response) == SR_OK) {
+ unit_barcode = g_malloc0(IT8500_DATA_LEN + 1);
+ memcpy(unit_barcode, response->data, IT8500_DATA_LEN);
+ sr_info("Barcode: %s", response->data);
+ g_free(unit_barcode);
+ }
- /* TODO: get handle from sdi->conn and close it. */
+ /*
+ * Query unit capabilities.
+ */
+ cmd->command = CMD_GET_LOAD_LIMITS;
+ if (itech_it8500_send_cmd(serial, cmd, &response) != SR_OK)
+ goto error;
+ p = response->data;
+ max_i = read_u32le_inc(&p) / 10000.0;
+ max_v = read_u32le_inc(&p) / 1000.0;
+ min_v = read_u32le_inc(&p) / 1000.0;
+ max_p = read_u32le_inc(&p) / 1000.0;
+ max_r = read_u32le_inc(&p) / 1000.0;
+ min_r = read_u16le_inc(&p) / 1000.0;
+ sr_info("Max current: %.0f A", max_i);
+ sr_info("Max power: %.0f W", max_p);
+ sr_info("Voltage range: %.1f - %.1f V", min_v, max_v);
+ sr_info("Resistance range: %.2f - %.2f Ohm", min_r, max_r);
+
+ /*
+ * Get current status of the unit.
+ */
+ if ((ret = itech_it8500_get_status(sdi)) != SR_OK) {
+ sr_err("Failed to get unit status: %d", ret);
+ goto error;
+ }
+ sr_info("Mode: %s", itech_it8500_mode_to_string(devc->mode));
+ sr_info("State: %s", devc->load_on ? "ON" : "OFF");
+ sr_info("Default sample rate: %" PRIu64 " Hz", devc->sample_rate);
+ sr_info("Maximum sample rate: %" PRIu64 " Hz",
+ samplerates[devc->max_sample_rate_idx]);
+
+ /*
+ * Populate data structures.
+ */
+
+ devc->fw_ver_major = fw_major;
+ devc->fw_ver_minor = fw_minor;
+ snprintf(devc->model, sizeof(devc->model), "%s", unit_model);
+ devc->max_current = max_i;
+ devc->min_voltage = min_v;
+ devc->max_voltage = max_v;
+ devc->max_power = max_p;
+ devc->min_resistance = min_r;
+ devc->max_resistance = max_r;
+
+ sdi->vendor = g_strdup("ITECH");
+ sdi->model = unit_model;
+ sdi->version = g_strdup_printf("%x.%02x", fw_major, fw_minor);
+ sdi->serial_num = unit_serial;
+
+ cg = g_malloc0(sizeof(*cg));
+ cg->name = g_strdup("1");
+ sdi->channel_groups = g_slist_append(sdi->channel_groups, cg);
+ ch = sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "V1");
+ cg->channels = g_slist_append(cg->channels, ch);
+ ch = sr_channel_new(sdi, 1, SR_CHANNEL_ANALOG, TRUE, "I1");
+ cg->channels = g_slist_append(cg->channels, ch);
+ ch = sr_channel_new(sdi, 2, SR_CHANNEL_ANALOG, TRUE, "P1");
+ cg->channels = g_slist_append(cg->channels, ch);
+
+ g_free(cmd);
+ g_free(response);
+ serial_close(serial);
+
+ return std_scan_complete(di, g_slist_append(NULL, sdi));
+
+error:
+ g_free(cmd);
+ g_free(devc);
+ g_free(sdi);
+ g_free(response);
+ g_free(unit_model);
+ g_free(unit_serial);
+ if (serial) {
+ serial_close(serial);
+ sr_serial_dev_inst_free(serial);
+ }
- return SR_OK;
+ return NULL;
}
static int config_get(uint32_t key, GVariant **data,
- const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
+ const struct sr_dev_inst *sdi,
+ const struct sr_channel_group *cg)
{
- int ret;
+ struct dev_context *devc;
+ const struct sr_key_info *kinfo;
+ const char *mode;
+ int ret, ival;
+ gboolean bval;
- (void)sdi;
- (void)data;
(void)cg;
+ if (!data || !sdi)
+ return SR_ERR_ARG;
+
+ devc = sdi->priv;
+ kinfo = sr_key_info_get(SR_KEY_CONFIG, key);
ret = SR_OK;
+
switch (key) {
- /* TODO */
+ case SR_CONF_LIMIT_SAMPLES:
+ case SR_CONF_LIMIT_MSEC:
+ ret = sr_sw_limits_config_get(&devc->limits, key, data);
+ break;
+ case SR_CONF_SAMPLERATE:
+ *data = g_variant_new_uint64(devc->sample_rate);
+ break;
+ case SR_CONF_ENABLED:
+ ret = itech_it8500_get_status(sdi);
+ if (ret == SR_OK)
+ *data = g_variant_new_boolean(devc->load_on);
+ break;
+ case SR_CONF_REGULATION:
+ ret = itech_it8500_get_status(sdi);
+ if (ret == SR_OK) {
+ mode = itech_it8500_mode_to_string(devc->mode);
+ *data = g_variant_new_string(mode);
+ }
+ break;
+ case SR_CONF_VOLTAGE:
+ ret = itech_it8500_get_status(sdi);
+ if (ret == SR_OK)
+ *data = g_variant_new_double(devc->voltage);
+ break;
+ case SR_CONF_VOLTAGE_TARGET:
+ ret = itech_it8500_get_int(sdi, CMD_GET_CV_VOLTAGE, &ival);
+ if (ret == SR_OK)
+ *data = g_variant_new_double((double)ival / 1000.0);
+ break;
+ case SR_CONF_CURRENT:
+ ret = itech_it8500_get_status(sdi);
+ if (ret == SR_OK)
+ *data = g_variant_new_double(devc->current);
+ break;
+ case SR_CONF_CURRENT_LIMIT:
+ ret = itech_it8500_get_int(sdi, CMD_GET_CC_CURRENT, &ival);
+ if (ret == SR_OK)
+ *data = g_variant_new_double((double)ival / 10000.0);
+ break;
+ case SR_CONF_POWER:
+ ret = itech_it8500_get_status(sdi);
+ if (ret == SR_OK)
+ *data = g_variant_new_double(devc->power);
+ break;
+ case SR_CONF_POWER_TARGET:
+ ret = itech_it8500_get_int(sdi, CMD_GET_CW_POWER, &ival);
+ if (ret == SR_OK)
+ *data = g_variant_new_double((double)ival / 1000.0);
+ break;
+ case SR_CONF_RESISTANCE_TARGET:
+ ret = itech_it8500_get_int(sdi, CMD_GET_CR_RESISTANCE, &ival);
+ if (ret == SR_OK)
+ *data = g_variant_new_double((double)ival / 1000.0);
+ break;
+ case SR_CONF_OVER_VOLTAGE_PROTECTION_ENABLED:
+ *data = g_variant_new_boolean(TRUE);
+ break;
+ case SR_CONF_OVER_VOLTAGE_PROTECTION_ACTIVE:
+ ret = itech_it8500_get_status(sdi);
+ if (ret == SR_OK) {
+ bval = devc->demand_state & DS_OV_FLAG;
+ *data = g_variant_new_boolean(bval);
+ }
+ break;
+ case SR_CONF_OVER_VOLTAGE_PROTECTION_THRESHOLD:
+ ret = itech_it8500_get_int(sdi, CMD_GET_MAX_VOLTAGE, &ival);
+ if (ret == SR_OK)
+ *data = g_variant_new_double((double)ival / 1000.0);
+ break;
+ case SR_CONF_OVER_CURRENT_PROTECTION_ENABLED:
+ *data = g_variant_new_boolean(TRUE);
+ break;
+ case SR_CONF_OVER_CURRENT_PROTECTION_ACTIVE:
+ ret = itech_it8500_get_status(sdi);
+ if (ret == SR_OK) {
+ bval = devc->demand_state & DS_OC_FLAG;
+ *data = g_variant_new_boolean(bval);
+ }
+ break;
+ case SR_CONF_OVER_CURRENT_PROTECTION_THRESHOLD:
+ ret = itech_it8500_get_int(sdi, CMD_GET_MAX_CURRENT, &ival);
+ if (ret == SR_OK)
+ *data = g_variant_new_double((double)ival / 10000.0);
+ break;
+ case SR_CONF_OVER_TEMPERATURE_PROTECTION:
+ *data = g_variant_new_boolean(TRUE);
+ break;
+ case SR_CONF_OVER_TEMPERATURE_PROTECTION_ACTIVE:
+ ret = itech_it8500_get_status(sdi);
+ if (ret == SR_OK) {
+ bval = devc->demand_state & DS_OT_FLAG;
+ *data = g_variant_new_boolean(bval);
+ }
+ break;
+ /* Hardware doesn't support under voltage reporting. */
+ case SR_CONF_UNDER_VOLTAGE_CONDITION:
+ case SR_CONF_UNDER_VOLTAGE_CONDITION_ACTIVE:
+ *data = g_variant_new_boolean(FALSE);
+ break;
+ case SR_CONF_UNDER_VOLTAGE_CONDITION_THRESHOLD:
+ *data = g_variant_new_double(0.0);
+ break;
default:
- return SR_ERR_NA;
+ sr_dbg("%s: Unsupported key: %u (%s)", __func__, key,
+ kinfo ? kinfo->name : "unknown");
+ ret = SR_ERR_NA;
}
return ret;
}
static int config_set(uint32_t key, GVariant *data,
- const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
+ const struct sr_dev_inst *sdi,
+ const struct sr_channel_group *cg)
{
- int ret;
+ struct dev_context *devc;
+ struct itech_it8500_cmd_packet *cmd, *response;
+ const struct sr_key_info *kinfo;
+ enum itech_it8500_modes mode;
+ int ret, ivalue;
+ uint64_t new_sr;
+ const char *s;
- (void)sdi;
- (void)data;
(void)cg;
+ if (!data || !sdi)
+ return SR_ERR_ARG;
+
+ cmd = g_malloc0(sizeof(*cmd));
+ if (!cmd)
+ return SR_ERR_MALLOC;
+
+ devc = sdi->priv;
+ response = NULL;
ret = SR_OK;
+
+ kinfo = sr_key_info_get(SR_KEY_CONFIG, key);
+
switch (key) {
- /* TODO */
+ case SR_CONF_LIMIT_MSEC:
+ case SR_CONF_LIMIT_SAMPLES:
+ ret = sr_sw_limits_config_set(&devc->limits, key, data);
+ goto done;
+ case SR_CONF_SAMPLERATE:
+ new_sr = g_variant_get_uint64(data);
+ if (new_sr < MIN_SAMPLE_RATE ||
+ new_sr > samplerates[devc->max_sample_rate_idx]) {
+ ret = SR_ERR_SAMPLERATE;
+ goto done;
+ }
+ devc->sample_rate = new_sr;
+ goto done;
+ case SR_CONF_ENABLED:
+ cmd->command = CMD_LOAD_ON_OFF;
+ cmd->data[0] = g_variant_get_boolean(data);
+ break;
+ case SR_CONF_REGULATION:
+ cmd->command = CMD_SET_MODE;
+ s = g_variant_get_string(data, NULL);
+ if (itech_it8500_string_to_mode(s, &mode) != SR_OK) {
+ ret = SR_ERR_ARG;
+ goto done;
+ }
+ cmd->data[0] = mode;
+ break;
+ case SR_CONF_VOLTAGE_TARGET:
+ cmd->command = CMD_SET_CV_VOLTAGE;
+ ivalue = g_variant_get_double(data) * 1000.0;
+ WL32(&cmd->data[0], ivalue);
+ break;
+ case SR_CONF_CURRENT_LIMIT:
+ cmd->command = CMD_SET_CC_CURRENT;
+ ivalue = g_variant_get_double(data) * 10000.0;
+ WL32(&cmd->data[0], ivalue);
+ break;
+ case SR_CONF_POWER_TARGET:
+ cmd->command = CMD_SET_CW_POWER;
+ ivalue = g_variant_get_double(data) * 1000.0;
+ WL32(&cmd->data[0], ivalue);
+ break;
+ case SR_CONF_RESISTANCE_TARGET:
+ cmd->command = CMD_SET_CR_RESISTANCE;
+ ivalue = g_variant_get_double(data) * 1000.0;
+ WL32(&cmd->data[0], ivalue);
+ break;
+ case SR_CONF_OVER_VOLTAGE_PROTECTION_THRESHOLD:
+ cmd->command = CMD_SET_MAX_VOLTAGE;
+ ivalue = g_variant_get_double(data) * 1000.0;
+ WL32(&cmd->data[0], ivalue);
+ break;
+ case SR_CONF_OVER_CURRENT_PROTECTION_THRESHOLD:
+ cmd->command = CMD_SET_MAX_CURRENT;
+ ivalue = g_variant_get_double(data) * 10000.0;
+ WL32(&cmd->data[0], ivalue);
+ break;
+
default:
+ sr_dbg("%s: Unsupported key: %u (%s)", __func__, key,
+ kinfo ? kinfo->name : "unknown");
ret = SR_ERR_NA;
+ goto done;
}
+ cmd->address = devc->address;
+ ret = itech_it8500_cmd(sdi, cmd, &response);
+
+done:
+ g_free(cmd);
+ g_free(response);
+
return ret;
}
static int config_list(uint32_t key, GVariant **data,
- const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
+ const struct sr_dev_inst *sdi,
+ const struct sr_channel_group *cg)
{
- int ret;
+ const struct dev_context *devc;
+ const struct sr_key_info *kinfo;
+ GVariantBuilder *b;
- (void)sdi;
- (void)data;
- (void)cg;
+ devc = sdi ? sdi->priv : NULL;
+ if (!data)
+ return SR_ERR_ARG;
+
+ if (!cg)
+ return STD_CONFIG_LIST(key, data, sdi, cg,
+ scanopts, drvopts, devopts);
+
+ kinfo = sr_key_info_get(SR_KEY_CONFIG, key);
- ret = SR_OK;
switch (key) {
- /* TODO */
+ case SR_CONF_DEVICE_OPTIONS:
+ *data = std_gvar_array_u32(ARRAY_AND_SIZE(devopts_cg));
+ break;
+ case SR_CONF_SAMPLERATE:
+ *data = std_gvar_samplerates_steps(samplerates,
+ 1 + devc->max_sample_rate_idx);
+ break;
+ case SR_CONF_REGULATION:
+ b = g_variant_builder_new(G_VARIANT_TYPE("as"));
+ g_variant_builder_add(b, "s", itech_it8500_mode_to_string(CC));
+ g_variant_builder_add(b, "s", itech_it8500_mode_to_string(CV));
+ g_variant_builder_add(b, "s", itech_it8500_mode_to_string(CW));
+ g_variant_builder_add(b, "s", itech_it8500_mode_to_string(CR));
+ *data = g_variant_new("as", b);
+ g_variant_builder_unref(b);
+ break;
+ case SR_CONF_VOLTAGE_TARGET:
+ if (!devc)
+ return SR_ERR_ARG;
+ *data = std_gvar_min_max_step(devc->min_voltage,
+ devc->max_voltage, 0.01);
+ break;
+ case SR_CONF_CURRENT_LIMIT:
+ if (!devc)
+ return SR_ERR_ARG;
+ *data = std_gvar_min_max_step(0.0, devc->max_current, 0.001);
+ break;
+ case SR_CONF_POWER_TARGET:
+ if (!devc)
+ return SR_ERR_ARG;
+ *data = std_gvar_min_max_step(0.0, devc->max_power, 0.01);
+ break;
+ case SR_CONF_RESISTANCE_TARGET:
+ if (!devc)
+ return SR_ERR_ARG;
+ *data = std_gvar_min_max_step(devc->min_resistance,
+ devc->max_resistance, 0.01);
+ break;
+
default:
+ sr_dbg("%s: Unsupported key: %u (%s)", __func__, key,
+ kinfo ? kinfo->name : "unknown");
return SR_ERR_NA;
}
- return ret;
+ return SR_OK;
}
static int dev_acquisition_start(const struct sr_dev_inst *sdi)
{
- /* TODO: configure hardware, reset acquisition state, set up
- * callbacks and send header packet. */
+ struct dev_context *devc;
+ struct sr_serial_dev_inst *serial;
+ int ret;
- (void)sdi;
+ if (!sdi)
+ return SR_ERR_ARG;
- return SR_OK;
+ devc = sdi->priv;
+ serial = sdi->conn;
+
+ ret = serial_source_add(sdi->session, serial, G_IO_IN,
+ (1000.0 / devc->sample_rate),
+ itech_it8500_receive_data, (void *)sdi);
+ if (ret == SR_OK) {
+ sr_sw_limits_acquisition_start(&devc->limits);
+ std_session_send_df_header(sdi);
+ }
+
+ return ret;
}
static int dev_acquisition_stop(struct sr_dev_inst *sdi)
{
- /* TODO: stop acquisition. */
+ struct sr_serial_dev_inst *serial;
+
+ if (!sdi)
+ return SR_ERR_ARG;
- (void)sdi;
+ serial = sdi->conn;
+
+ std_session_send_df_end(sdi);
+ serial_source_remove(sdi->session, serial);
return SR_OK;
}
+static int dev_open(struct sr_dev_inst *sdi)
+{
+ struct dev_context *devc;
+ struct itech_it8500_cmd_packet *cmd, *response;
+ int ret, res;
+
+ if (!sdi)
+ return SR_ERR_ARG;
+
+ devc = sdi->priv;
+ ret = std_serial_dev_open(sdi);
+ if (ret == SR_OK) {
+ /* Request the unit to enter remote control mode. */
+ response = NULL;
+ cmd = g_malloc0(sizeof(*cmd));
+ if (cmd) {
+ cmd->address = devc->address;
+ cmd->command = CMD_SET_REMOTE_MODE;
+ cmd->data[0] = 1;
+ res = itech_it8500_cmd(sdi, cmd, &response);
+ if (res != SR_OK)
+ sr_dbg("Failed to set unit to remote mode");
+ g_free(cmd);
+ g_free(response);
+ }
+ }
+
+ return ret;
+}
+
+static int dev_close(struct sr_dev_inst *sdi)
+{
+ struct dev_context *devc;
+ struct itech_it8500_cmd_packet *cmd, *response;
+ int ret;
+
+ if (!sdi)
+ return SR_ERR_ARG;
+
+ devc = sdi->priv;
+ response = NULL;
+ cmd = g_malloc0(sizeof(*cmd));
+ if (cmd) {
+ /* Request the unit to enter local control mode. */
+ cmd->address = devc->address;
+ cmd->command = CMD_SET_REMOTE_MODE;
+ cmd->data[0] = 0;
+ ret = itech_it8500_cmd(sdi, cmd, &response);
+ if (ret != SR_OK)
+ sr_dbg("Failed to set unit back to local mode: %d",
+ ret);
+ }
+
+ g_free(cmd);
+ g_free(response);
+
+ return std_serial_dev_close(sdi);
+}
+
+static void dev_clear_callback(void *priv)
+{
+ struct dev_context *devc;
+
+ if (!priv)
+ return;
+
+ devc = priv;
+ g_mutex_clear(&devc->mutex);
+}
+
+static int dev_clear(const struct sr_dev_driver *di)
+{
+ return std_dev_clear_with_callback(di, dev_clear_callback);
+}
+
static struct sr_dev_driver itech_it8500_driver_info = {
.name = "itech-it8500",
- .longname = "ITECH IT8500",
+ .longname = "ITECH IT8500 series",
.api_version = 1,
.init = std_init,
.cleanup = std_cleanup,
.scan = scan,
.dev_list = std_dev_list,
- .dev_clear = std_dev_clear,
+ .dev_clear = dev_clear,
.config_get = config_get,
.config_set = config_set,
.config_list = config_list,
projects / libsigrok.git / blobdiff