*/
#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,
*/
#include <config.h>
+#include <string.h>
#include "protocol.h"
+SR_PRIV uint8_t itech_it8500_checksum(const uint8_t *packet)
+{
+ const uint8_t *p;
+ uint8_t checksum;
+ size_t i;
+
+ if (!packet)
+ return 0xff;
+
+ checksum = 0;
+ p = packet;
+ for (i = 0; i < IT8500_PACKET_LEN - 1; i++)
+ checksum += *p++;
+
+ return checksum;
+}
+
+SR_PRIV const char *itech_it8500_mode_to_string(enum itech_it8500_modes mode)
+{
+ switch (mode) {
+ case CC:
+ return "CC";
+ case CV:
+ return "CV";
+ case CW:
+ return "CW";
+ case CR:
+ return "CR";
+ default:
+ return "Unknown";
+ }
+}
+
+SR_PRIV int itech_it8500_string_to_mode(const char *modename,
+ enum itech_it8500_modes *mode)
+{
+ size_t i;
+ const char *s;
+
+ for (i = 0; i < IT8500_MODES; i++) {
+ s = itech_it8500_mode_to_string(i);
+ if (strncmp(modename, s, strlen(s)) == 0) {
+ *mode = i;
+ return SR_OK;
+ }
+ }
+
+ return SR_ERR;
+}
+
+SR_PRIV int itech_it8500_send_cmd(struct sr_serial_dev_inst *serial,
+ struct itech_it8500_cmd_packet *cmd,
+ struct itech_it8500_cmd_packet **response)
+{
+ struct itech_it8500_cmd_packet *resp;
+ uint8_t *cmd_buf, *resp_buf, checksum;
+ int ret, read_len;
+
+ if (!serial || !cmd || !response)
+ return SR_ERR_ARG;
+
+ cmd_buf = g_malloc0(IT8500_PACKET_LEN);
+ resp_buf = g_malloc0(IT8500_PACKET_LEN);
+ resp = g_malloc0(sizeof(*resp));
+ if (!cmd_buf || !resp_buf || !resp)
+ return SR_ERR_MALLOC;
+
+ /*
+ * Construct request from: preamble, address, command, data,
+ * and checksum.
+ */
+ cmd_buf[0] = IT8500_PREAMBLE;
+ cmd_buf[1] = cmd->address;
+ cmd_buf[2] = cmd->command;
+ memcpy(&cmd_buf[3], cmd->data, IT8500_DATA_LEN);
+ cmd_buf[IT8500_PACKET_LEN - 1] = itech_it8500_checksum(cmd_buf);
+
+ sr_spew("%s: Sending command: %02x", __func__, cmd->command);
+ ret = serial_write_blocking(serial, cmd_buf, IT8500_PACKET_LEN,
+ serial_timeout(serial, IT8500_PACKET_LEN));
+ if (ret < IT8500_PACKET_LEN) {
+ sr_dbg("%s: Error sending command 0x%02x: %d", __func__,
+ cmd->command, ret);
+ ret = SR_ERR;
+ goto error;
+ }
+
+ ret = SR_ERR;
+ read_len = serial_read_blocking(serial, resp_buf, IT8500_PACKET_LEN,
+ 100);
+ if (read_len < IT8500_PACKET_LEN) {
+ sr_dbg("%s: Timeout waiting response to command: %d",
+ __func__, read_len);
+ goto error;
+ }
+
+ if (resp_buf[0] != IT8500_PREAMBLE) {
+ sr_dbg("%s: Invalid packet received (first byte: %02x)",
+ __func__, resp_buf[0]);
+ goto error;
+ }
+
+ checksum = itech_it8500_checksum(resp_buf);
+ if (resp_buf[IT8500_PACKET_LEN - 1] != checksum) {
+ sr_dbg("%s: Invalid packet received: checksum mismatch",
+ __func__);
+ goto error;
+ }
+
+ resp->address = resp_buf[1];
+ resp->command = resp_buf[2];
+ memcpy(resp->data, &resp_buf[3], IT8500_DATA_LEN);
+ sr_spew("%s: Response packet received: cmd=%02x", __func__,
+ resp->command);
+
+ if (resp->command == CMD_RESPONSE) {
+ if (resp->data[0] != IT8500_COMMAND_SUCCESSFUL) {
+ sr_dbg("%s: Command (%02x) failed: status=%02x",
+ __func__, cmd->command, resp->data[0]);
+ goto error;
+ }
+ } else {
+ if (resp->command != cmd->command) {
+ sr_dbg("%s: Invalid response received: %02x"
+ " (expected: %02x)",
+ __func__, resp->command, cmd->command);
+ goto error;
+ }
+ }
+
+ if (*response)
+ g_free(*response);
+ *response = resp;
+ resp = NULL;
+ ret = SR_OK;
+
+error:
+ g_free(cmd_buf);
+ g_free(resp_buf);
+ g_free(resp);
+
+ return ret;
+}
+
+SR_PRIV int itech_it8500_cmd(const struct sr_dev_inst *sdi,
+ struct itech_it8500_cmd_packet *cmd,
+ struct itech_it8500_cmd_packet **response)
+{
+ struct dev_context *devc;
+ struct sr_serial_dev_inst *serial;
+ int ret;
+
+ if (!sdi)
+ return SR_ERR_ARG;
+ devc = sdi->priv;
+ serial = sdi->conn;
+ if (!devc || !serial)
+ return SR_ERR_NA;
+
+ g_mutex_lock(&devc->mutex);
+ ret = itech_it8500_send_cmd(serial, cmd, response);
+ g_mutex_unlock(&devc->mutex);
+
+ return ret;
+}
+
+SR_PRIV void itech_it8500_status_change(const struct sr_dev_inst *sdi,
+ uint8_t old_os, uint8_t new_os,
+ uint16_t old_ds, uint16_t new_ds,
+ enum itech_it8500_modes old_m, enum itech_it8500_modes new_m)
+{
+ const char *mode;
+ gboolean old, new;
+
+ /* Check it output status has changed. */
+ old = old_os & OS_OUT_FLAG;
+ new = new_os & OS_OUT_FLAG;
+ if (old != new)
+ sr_session_send_meta(sdi,
+ SR_CONF_ENABLED,
+ g_variant_new_boolean(new));
+
+ /* Check if OVP status has changed. */
+ old = old_ds & DS_OV_FLAG;
+ new = new_ds & DS_OV_FLAG;
+ if (old != new)
+ sr_session_send_meta(sdi,
+ SR_CONF_OVER_VOLTAGE_PROTECTION_ACTIVE,
+ g_variant_new_boolean(new));
+
+ /* Check if OCP status has changed. */
+ old = old_ds & DS_OC_FLAG;
+ new = new_ds & DS_OC_FLAG;
+ if (old != new)
+ sr_session_send_meta(sdi,
+ SR_CONF_OVER_CURRENT_PROTECTION_ACTIVE,
+ g_variant_new_boolean(new));
+
+ /* Check if OTP status has changed. */
+ old = old_ds & DS_OT_FLAG;
+ new = new_ds & DS_OT_FLAG;
+ if (old != new)
+ sr_session_send_meta(sdi,
+ SR_CONF_OVER_TEMPERATURE_PROTECTION_ACTIVE,
+ g_variant_new_boolean(new));
+
+ /* Check if operating mode has changed. */
+ if (old_m != new_m) {
+ mode = itech_it8500_mode_to_string(new_m);
+ sr_session_send_meta(sdi, SR_CONF_REGULATION,
+ g_variant_new_string(mode));
+ }
+}
+
+SR_PRIV int itech_it8500_get_status(const struct sr_dev_inst *sdi)
+{
+ struct dev_context *devc;
+ struct itech_it8500_cmd_packet *cmd;
+ struct itech_it8500_cmd_packet *resp;
+ double voltage, current, power;
+ uint8_t operation_state;
+ uint16_t demand_state;
+ enum itech_it8500_modes mode;
+ gboolean load_on;
+ const uint8_t *p;
+ int ret;
+
+ if (!sdi)
+ return SR_ERR_ARG;
+
+ devc = sdi->priv;
+ if (!devc)
+ return SR_ERR_NA;
+
+ cmd = g_malloc0(sizeof(*cmd));
+ if (!cmd)
+ return SR_ERR_MALLOC;
+ cmd->address = devc->address;
+ cmd->command = CMD_GET_STATE;
+ resp = NULL;
+
+ ret = itech_it8500_cmd(sdi, cmd, &resp);
+ if (ret == SR_OK) {
+ p = resp->data;
+ voltage = read_u32le_inc(&p) / 1000.0;
+ current = read_u32le_inc(&p) / 10000.0;
+ power = read_u32le_inc(&p) / 1000.0;
+ operation_state = read_u8_inc(&p);
+ demand_state = read_u16le_inc(&p);
+
+ if (demand_state & DS_CC_MODE_FLAG)
+ mode = CC;
+ else if (demand_state & DS_CV_MODE_FLAG)
+ mode = CV;
+ else if (demand_state & DS_CW_MODE_FLAG)
+ mode = CW;
+ else if (demand_state & DS_CR_MODE_FLAG)
+ mode = CR;
+ else
+ mode = CC;
+ load_on = operation_state & OS_OUT_FLAG;
+
+ sr_dbg("Load status: V=%.4f, I=%.4f, P=%.3f, State=%s, "
+ "Mode=%s (op=0x%02x, demand=0x%04x)",
+ voltage, current, power, (load_on ? "ON": "OFF"),
+ itech_it8500_mode_to_string(mode),
+ operation_state, demand_state);
+
+ /* Check for status change only after scan() has completed. */
+ if (sdi->model) {
+ itech_it8500_status_change(sdi, devc->operation_state,
+ operation_state, devc->demand_state,
+ demand_state, devc->mode, mode);
+ }
+ devc->voltage = voltage;
+ devc->current = current;
+ devc->power = power;
+ devc->operation_state = operation_state;
+ devc->demand_state = demand_state;
+ devc->mode = mode;
+ devc->load_on = load_on;
+ }
+
+ g_free(cmd);
+ g_free(resp);
+
+ return ret;
+}
+
+SR_PRIV int itech_it8500_get_int(const struct sr_dev_inst *sdi,
+ enum itech_it8500_command command, int *result)
+{
+ struct dev_context *devc;
+ struct itech_it8500_cmd_packet *cmd;
+ struct itech_it8500_cmd_packet *resp;
+ int ret;
+
+ if (!sdi || !result)
+ return SR_ERR_ARG;
+
+ devc = sdi->priv;
+ cmd = g_malloc0(sizeof(*cmd));
+ if (!cmd)
+ return SR_ERR_MALLOC;
+ cmd->address = devc->address;
+ cmd->command = command;
+ resp = NULL;
+
+ ret = itech_it8500_cmd(sdi, cmd, &resp);
+ if (ret == SR_OK)
+ *result = RL32(&resp->data[0]);
+
+ g_free(cmd);
+ g_free(resp);
+
+ return ret;
+}
+
+SR_PRIV void itech_it8500_channel_send_value(const struct sr_dev_inst *sdi,
+ struct sr_channel *ch, double value, enum sr_mq mq,
+ enum sr_unit unit, int digits)
+{
+ struct sr_datafeed_packet packet;
+ struct sr_datafeed_analog analog;
+ struct sr_analog_encoding encoding;
+ struct sr_analog_meaning meaning;
+ struct sr_analog_spec spec;
+ double val;
+
+ val = value;
+ sr_analog_init(&analog, &encoding, &meaning, &spec, digits);
+ analog.meaning->channels = g_slist_append(NULL, ch);
+ analog.num_samples = 1;
+ analog.data = &val;
+ analog.encoding->unitsize = sizeof(val);
+ analog.encoding->is_float = TRUE;
+ analog.meaning->mq = mq;
+ analog.meaning->unit = unit;
+ analog.meaning->mqflags = SR_MQFLAG_DC;
+
+ packet.type = SR_DF_ANALOG;
+ packet.payload = &analog;
+ sr_session_send(sdi, &packet);
+ g_slist_free(analog.meaning->channels);
+}
+
SR_PRIV int itech_it8500_receive_data(int fd, int revents, void *cb_data)
{
- const struct sr_dev_inst *sdi;
+ struct sr_dev_inst *sdi;
struct dev_context *devc;
+ GSList *l;
(void)fd;
+ (void)revents;
if (!(sdi = cb_data))
return TRUE;
if (!(devc = sdi->priv))
return TRUE;
- if (revents == G_IO_IN) {
- /* TODO */
- }
+ if (itech_it8500_get_status(sdi) != SR_OK)
+ return TRUE;
+
+ std_session_send_df_frame_begin(sdi);
+
+ l = g_slist_nth(sdi->channels, 0);
+ itech_it8500_channel_send_value(sdi, l->data, devc->voltage,
+ SR_MQ_VOLTAGE, SR_UNIT_VOLT, 5);
+
+ l = g_slist_nth(sdi->channels, 1);
+ itech_it8500_channel_send_value(sdi, l->data, devc->current,
+ SR_MQ_CURRENT, SR_UNIT_AMPERE, 5);
+
+ l = g_slist_nth(sdi->channels, 2);
+ itech_it8500_channel_send_value(sdi, l->data, devc->power,
+ SR_MQ_POWER, SR_UNIT_WATT, 5);
+
+ std_session_send_df_frame_end(sdi);
+
+ sr_sw_limits_update_samples_read(&devc->limits, 1);
+ if (sr_sw_limits_check(&devc->limits))
+ sr_dev_acquisition_stop(sdi);
return TRUE;
}
#define LOG_PREFIX "itech-it8500"
+/*
+ * Unit uses 26 byte binary packets for communications.
+ * Packets have fixed format:
+ *
+ * Offset|Length|Description
+ * ------|------|-------------------------------------
+ * 0 | 1 | Preable (always set to 0xAA).
+ * 1 | 1 | Unit Address (0-254, 255=broadcast).
+ * 2 | 1 | Command number.
+ * 3 | 22 | Variable data.
+ * 25 | 1 | Parity code (checksum).
+ */
+#define IT8500_HEADER_LEN 3
+#define IT8500_DATA_LEN 22
+#define IT8500_PACKET_LEN (IT8500_HEADER_LEN + IT8500_DATA_LEN + 1)
+
+#define IT8500_PREAMBLE 0xaa
+#define IT8500_MAX_MODEL_NAME_LEN 5
+
+/* Status packet status byte values. */
+#define IT8500_COMMAND_SUCCESSFUL 0x80
+#define IT8500_INVALID_CHECKSUM 0x90
+#define IT8500_INVALID_PARAMETER 0xa0
+#define IT8500_UNKNOWN_COMMAND 0xb0
+#define IT8500_INVALID_COMMAND 0xc0
+
+/*
+ * Operating modes.
+ * Note! These map directly to mode numbers used in CMD_SET_MODE
+ * and CMD_GET_MODE commands, so values are manually defined below.
+ */
+enum itech_it8500_modes {
+ CC = 0,
+ CV = 1,
+ CW = 2,
+ CR = 3,
+ IT8500_MODES, /* Total count, for internal use. */
+};
+
+enum itech_it8500_command {
+ CMD_GET_LOAD_LIMITS = 0x01,
+ CMD_SET_HW_OPP_VALUE = 0x02,
+ CMD_GET_HW_OPP_VALUE = 0x03,
+ CMD_SET_VON_MODE = 0x0e,
+ CMD_GET_VON_MODE = 0x0f,
+ CMD_SET_VON_VALUE = 0x10,
+ CMD_GET_VON_VALUE = 0x11,
+ CMD_RESPONSE = 0x12, /* Response to commands not returning any data. */
+ CMD_SET_REMOTE_MODE = 0x20,
+ CMD_LOAD_ON_OFF = 0x21,
+ CMD_SET_MAX_VOLTAGE = 0x22,
+ CMD_GET_MAX_VOLTAGE = 0x23,
+ CMD_SET_MAX_CURRENT = 0x24,
+ CMD_GET_MAX_CURRENT = 0x25,
+ CMD_SET_MAX_POWER = 0x26,
+ CMD_GET_MAX_POWER = 0x27,
+ CMD_SET_MODE = 0x28,
+ CMD_GET_MODE = 0x29,
+ CMD_SET_CC_CURRENT = 0x2a,
+ CMD_GET_CC_CURRENT = 0x2b,
+ CMD_SET_CV_VOLTAGE = 0x2c,
+ CMD_GET_CV_VOLTAGE = 0x2d,
+ CMD_SET_CW_POWER = 0x2e,
+ CMD_GET_CW_POWER = 0x2f,
+ CMD_SET_CR_RESISTANCE = 0x30,
+ CMD_GET_CR_RESISTANCE = 0x31,
+ CMD_SET_BATTERY_MIN_VOLTAGE = 0x4e,
+ CMD_GET_BATTERY_MIN_VOLTAGE = 0x4f,
+ CMD_SET_LOAD_ON_TIMER = 0x50,
+ CMD_GET_LOAD_ON_TIMER = 0x51,
+ CMD_LOAD_ON_TIMER = 0x52,
+ CMD_LOAD_ON_TIME_STATUS = 0x53,
+ CMD_SET_ADDRESS = 0x54,
+ CMD_LOCAL_CONTROL = 0x55,
+ CMD_REMOTE_SENSING = 0x56,
+ CMD_REMOTE_SENSING_STATUS = 0x57,
+ CMD_SET_TRIGGER_SOURCE = 0x58,
+ CMD_GET_TRIGGER_SOURCE = 0x59,
+ CMD_TRIGGER = 0x5a,
+ CMD_SAVE_SETTINGS = 0x5b,
+ CMD_LOAD_SETTINGS = 0x5c,
+ CMD_SET_FUNCTION = 0x5d,
+ CMD_GET_FUNCTION = 0x5e,
+ CMD_GET_STATE = 0x5f,
+ CMD_GET_MODEL_INFO = 0x6a,
+ CMD_GET_BARCODE_INFO = 0x6b,
+ CMD_SET_OCP_VALUE = 0x80,
+ CMD_GET_OCP_VALUE = 0x81,
+ CMD_SET_OCP_DELAY = 0x82,
+ CMD_GET_OCP_DELAY = 0x83,
+ CMD_ENABLE_OCP = 0x84,
+ CMD_DISABLE_OCP = 0x85,
+ CMD_SET_OPP_VALUE = 0x86,
+ CMD_GET_OPP_VALUE = 0x87,
+ CMD_SET_OPP_DELAY = 0x88,
+ CMD_GET_OPP_DELAY = 0x89,
+};
+
+/*
+ * Data structure to track commands and reponses.
+ */
+struct itech_it8500_cmd_packet {
+ uint8_t command; /* Command number. */
+ uint8_t address; /* Unit address: 0..254 (255 = broadcast). */
+ uint8_t data[IT8500_DATA_LEN]; /* Command/Response data. */
+};
+
+/*
+ * "Operation state" register flags.
+ */
+#define OS_CAL_FLAG 0x01
+#define OS_WTG_FLAG 0x02
+#define OS_REM_FLAG 0x04
+#define OS_OUT_FLAG 0x08
+#define OS_LOCAL_FLAG 0x10
+#define OS_SENSE_FLAG 0x20
+#define OS_LOT_FLAG 0x40
+
+/*
+ * "Demand state" register flags.
+ */
+#define DS_RV_FLAG 0x0001
+#define DS_OV_FLAG 0x0002
+#define DS_OC_FLAG 0x0004
+#define DS_OP_FLAG 0x0008
+#define DS_OT_FLAG 0x0010
+#define DS_SV_FLAG 0x0020
+#define DS_CC_MODE_FLAG 0x0040
+#define DS_CV_MODE_FLAG 0x0080
+#define DS_CW_MODE_FLAG 0x0100
+#define DS_CR_MODE_FLAG 0x0200
+
struct dev_context {
+ char model[IT8500_MAX_MODEL_NAME_LEN + 1];
+ uint8_t fw_ver_major;
+ uint8_t fw_ver_minor;
+ uint8_t address;
+ double max_current;
+ double min_voltage;
+ double max_voltage;
+ double max_power;
+ double min_resistance;
+ double max_resistance;
+ size_t max_sample_rate_idx;
+
+ double voltage;
+ double current;
+ double power;
+ uint8_t operation_state;
+ uint16_t demand_state;
+ enum itech_it8500_modes mode;
+ gboolean load_on;
+
+ uint64_t sample_rate;
+ struct sr_sw_limits limits;
+
+ GMutex mutex;
};
+SR_PRIV uint8_t itech_it8500_checksum(const uint8_t *packet);
+SR_PRIV const char *itech_it8500_mode_to_string(enum itech_it8500_modes mode);
+SR_PRIV int itech_it8500_string_to_mode(const char *modename,
+ enum itech_it8500_modes *mode);
+SR_PRIV int itech_it8500_send_cmd(struct sr_serial_dev_inst *serial,
+ struct itech_it8500_cmd_packet *cmd,
+ struct itech_it8500_cmd_packet **response);
+SR_PRIV int itech_it8500_cmd(const struct sr_dev_inst *sdi,
+ struct itech_it8500_cmd_packet *cmd,
+ struct itech_it8500_cmd_packet **response);
+SR_PRIV void itech_it8500_status_change(const struct sr_dev_inst *sdi,
+ uint8_t old_op, uint8_t new_op,
+ uint16_t old_de, uint16_t new_de,
+ enum itech_it8500_modes old_m, enum itech_it8500_modes new_m);
+SR_PRIV int itech_it8500_get_status(const struct sr_dev_inst *sdi);
+SR_PRIV int itech_it8500_get_int(const struct sr_dev_inst *sdi,
+ enum itech_it8500_command command, int *result);
+SR_PRIV void itech_it8500_channel_send_value(const struct sr_dev_inst *sdi,
+ struct sr_channel *ch, double value, enum sr_mq mq,
+ enum sr_unit unit, int digits);
SR_PRIV int itech_it8500_receive_data(int fd, int revents, void *cb_data);
#endif
projects / libsigrok.git / commitdiff