* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
+#include <math.h>
#include <string.h>
#include "protocol.h"
-#define READ_TIMEOUT_MS 1000
+#define READ_TIMEOUT_MS 500
static int send_cmd(const struct sr_dev_inst *sdi, const char *cmd,
char *replybuf, int replybufsize)
{
char *bufptr;
int len, ret;
+ struct dev_context *devc;
struct sr_serial_dev_inst *serial;
+ devc = sdi->priv;
serial = sdi->conn;
/* Send the command (blocking, with timeout). */
return SR_ERR;
}
- /* Read the reply (blocking, with timeout). */
- memset(replybuf, 0, replybufsize);
- bufptr = replybuf;
- len = replybufsize;
- ret = serial_readline(serial, &bufptr, &len, READ_TIMEOUT_MS);
-
- /* If we got 0 characters (possibly one \r or \n), retry once. */
- if (len == 0) {
+ if (!devc->acquisition_running) {
+ /* Read the reply (blocking, with timeout). */
+ memset(replybuf, 0, replybufsize);
+ bufptr = replybuf;
len = replybufsize;
ret = serial_readline(serial, &bufptr, &len, READ_TIMEOUT_MS);
- }
- if (g_str_has_prefix((const char *)&bufptr, "err ")) {
- sr_err("Device replied with an error: '%s'.", bufptr);
- return SR_ERR;
+ /* If we got 0 characters (possibly one \r or \n), retry once. */
+ if (len == 0) {
+ len = replybufsize;
+ ret = serial_readline(serial, &bufptr, &len, READ_TIMEOUT_MS);
+ }
+
+ if (g_str_has_prefix((const char *)&bufptr, "err ")) {
+ sr_err("Device replied with an error: '%s'.", bufptr);
+ return SR_ERR;
+ }
}
return ret;
}
SR_PRIV int reloadpro_set_current_limit(const struct sr_dev_inst *sdi,
- float current)
+ float current_limit)
{
+ struct dev_context *devc;
int ret, ma;
char buf[100];
char *cmd;
- if (current < 0 || current > 6) {
- sr_err("The current limit must be 0-6 A (was %f A).", current);
+ devc = sdi->priv;
+
+ if (current_limit < 0 || current_limit > 6) {
+ sr_err("The current limit must be 0-6 A (was %f A).", current_limit);
return SR_ERR_ARG;
}
- /* Hardware expects current in mA, integer (0..6000). */
- ma = (int)(current * 1000);
-
- sr_err("Setting current limit to %f A (%d mA).", current, ma);
+ /* Hardware expects current limit in mA, integer (0..6000). */
+ ma = (int)round(current_limit * 1000);
cmd = g_strdup_printf("set %d\n", ma);
- if ((ret = send_cmd(sdi, cmd, (char *)&buf, sizeof(buf))) < 0) {
+ g_mutex_lock(&devc->acquisition_mutex);
+ ret = send_cmd(sdi, cmd, (char *)&buf, sizeof(buf));
+ g_mutex_unlock(&devc->acquisition_mutex);
+ g_free(cmd);
+
+ if (ret < 0) {
sr_err("Error sending current limit command: %d.", ret);
- g_free(cmd);
return SR_ERR;
}
- g_free(cmd);
-
return SR_OK;
}
SR_PRIV int reloadpro_set_on_off(const struct sr_dev_inst *sdi, gboolean on)
{
+ struct dev_context *devc;
int ret;
char buf[100];
const char *cmd;
+ devc = sdi->priv;
+
cmd = (on) ? "on\n" : "off\n";
- if ((ret = send_cmd(sdi, cmd, (char *)&buf, sizeof(buf))) < 0) {
+ g_mutex_lock(&devc->acquisition_mutex);
+ ret = send_cmd(sdi, cmd, (char *)&buf, sizeof(buf));
+ g_mutex_unlock(&devc->acquisition_mutex);
+
+ if (ret < 0) {
sr_err("Error sending on/off command: %d.", ret);
return SR_ERR;
}
+ return SR_OK;
+}
+
+SR_PRIV int reloadpro_set_under_voltage_threshold(const struct sr_dev_inst *sdi,
+ float voltage)
+{
+ struct dev_context *devc;
+ int ret, mv;
+ char buf[100];
+ char *cmd;
+
+ devc = sdi->priv;
+
+ if (voltage < 0 || voltage > 60) {
+ sr_err("The under voltage threshold must be 0-60 V (was %f V).",
+ voltage);
+ return SR_ERR_ARG;
+ }
+ /* Hardware expects voltage in mV, integer (0..60000). */
+ mv = (int)round(voltage * 1000);
+
+ sr_spew("Setting under voltage threshold to %f V (%d mV).", voltage, mv);
+
+ cmd = g_strdup_printf("uvlo %d\n", mv);
+ g_mutex_lock(&devc->acquisition_mutex);
+ ret = send_cmd(sdi, cmd, (char *)&buf, sizeof(buf));
+ g_mutex_unlock(&devc->acquisition_mutex);
+ g_free(cmd);
+
+ if (ret < 0) {
+ sr_err("Error sending under voltage threshold command: %d.", ret);
+ return SR_ERR;
+ }
return SR_OK;
}
SR_PRIV int reloadpro_get_current_limit(const struct sr_dev_inst *sdi,
- float *current)
+ float *current_limit)
{
+ struct dev_context *devc;
int ret;
char buf[100];
+ gint64 end_time;
+
+ devc = sdi->priv;
+ g_mutex_lock(&devc->acquisition_mutex);
if ((ret = send_cmd(sdi, "set\n", (char *)&buf, sizeof(buf))) < 0) {
sr_err("Error sending current limit query: %d.", ret);
return SR_ERR;
}
- /* Hardware sends current in mA, integer (0..6000). */
- *current = g_ascii_strtod(buf + 4, NULL) / 1000;
+ if (devc->acquisition_running) {
+ end_time = g_get_monotonic_time () + 5 * G_TIME_SPAN_SECOND;
+ if (!g_cond_wait_until(&devc->current_limit_cond,
+ &devc->acquisition_mutex, end_time)) {
+ /* Timeout has passed. */
+ g_mutex_unlock(&devc->acquisition_mutex);
+ return SR_ERR;
+ }
+ } else {
+ /* Hardware sends current limit in mA, integer (0..6000). */
+ devc->current_limit = g_ascii_strtod(buf + 4, NULL) / 1000;
+ }
+ g_mutex_unlock(&devc->acquisition_mutex);
+
+ if (current_limit)
+ *current_limit = devc->current_limit;
+
+ return SR_OK;
+}
+
+SR_PRIV int reloadpro_get_under_voltage_threshold(const struct sr_dev_inst *sdi,
+ float *uvc_threshold)
+{
+ struct dev_context *devc;
+ int ret;
+ char buf[100];
+ gint64 end_time;
+
+ devc = sdi->priv;
+
+ g_mutex_lock(&devc->acquisition_mutex);
+ if ((ret = send_cmd(sdi, "uvlo\n", (char *)&buf, sizeof(buf))) < 0) {
+ sr_err("Error sending under voltage threshold query: %d.", ret);
+ return SR_ERR;
+ }
+
+ if (devc->acquisition_running) {
+ end_time = g_get_monotonic_time () + 5 * G_TIME_SPAN_SECOND;
+ if (!g_cond_wait_until(&devc->uvc_threshold_cond,
+ &devc->acquisition_mutex, end_time)) {
+ /* Timeout has passed. */
+ g_mutex_unlock(&devc->acquisition_mutex);
+ return SR_ERR;
+ }
+ } else {
+ /* Hardware sends voltage in mV, integer (0..60000). */
+ devc->uvc_threshold = g_ascii_strtod(buf + 5, NULL) / 1000;
+ }
+ g_mutex_unlock(&devc->acquisition_mutex);
+
+ if (uvc_threshold)
+ *uvc_threshold = devc->uvc_threshold;
return SR_OK;
}
SR_PRIV int reloadpro_get_voltage_current(const struct sr_dev_inst *sdi,
float *voltage, float *current)
{
+ struct dev_context *devc;
int ret;
char buf[100];
char **tokens;
+ gint64 end_time;
+
+ devc = sdi->priv;
+ g_mutex_lock(&devc->acquisition_mutex);
if ((ret = send_cmd(sdi, "read\n", (char *)&buf, sizeof(buf))) < 0) {
sr_err("Error sending voltage/current query: %d.", ret);
return SR_ERR;
}
- /* Reply: "read <current> <voltage>". */
- tokens = g_strsplit((const char *)&buf, " ", 3);
+ if (devc->acquisition_running) {
+ end_time = g_get_monotonic_time () + 5 * G_TIME_SPAN_SECOND;
+ if (!g_cond_wait_until(&devc->voltage_cond,
+ &devc->acquisition_mutex, end_time)) {
+ /* Timeout has passed. */
+ g_mutex_unlock(&devc->acquisition_mutex);
+ return SR_ERR;
+ }
+ } else {
+ /* Reply: "read <current> <voltage>". */
+ tokens = g_strsplit((const char *)&buf, " ", 3);
+ devc->voltage = g_ascii_strtod(tokens[2], NULL) / 1000;
+ devc->current = g_ascii_strtod(tokens[1], NULL) / 1000;
+ g_strfreev(tokens);
+ }
+ g_mutex_unlock(&devc->acquisition_mutex);
+
if (voltage)
- *voltage = g_ascii_strtod(tokens[2], NULL) / 1000;
+ *voltage = devc->voltage;
if (current)
- *current = g_ascii_strtod(tokens[1], NULL) / 1000;
- g_strfreev(tokens);
+ *current = devc->current;
return SR_OK;
}
+static int send_config_update_key(const struct sr_dev_inst *sdi,
+ uint32_t key, GVariant *var)
+{
+ struct sr_config *cfg;
+ struct sr_datafeed_packet packet;
+ struct sr_datafeed_meta meta;
+ int ret;
+
+ cfg = sr_config_new(key, var);
+ if (!cfg)
+ return SR_ERR;
+
+ memset(&meta, 0, sizeof(meta));
+
+ packet.type = SR_DF_META;
+ packet.payload = &meta;
+
+ meta.config = g_slist_append(meta.config, cfg);
+
+ ret = sr_session_send(sdi, &packet);
+ sr_config_free(cfg);
+
+ return ret;
+}
+
static void handle_packet(const struct sr_dev_inst *sdi)
{
- float voltage, current;
struct sr_datafeed_packet packet;
struct sr_datafeed_analog analog;
struct sr_analog_encoding encoding;
if (g_str_has_prefix((const char *)devc->buf, "overtemp")) {
sr_warn("Overtemperature condition!");
devc->otp_active = TRUE;
+ send_config_update_key(sdi, SR_CONF_OVER_TEMPERATURE_PROTECTION_ACTIVE,
+ g_variant_new_boolean(TRUE));
return;
}
if (g_str_has_prefix((const char *)devc->buf, "undervolt")) {
sr_warn("Undervoltage condition!");
devc->uvc_active = TRUE;
+ send_config_update_key(sdi, SR_CONF_UNDER_VOLTAGE_CONDITION_ACTIVE,
+ g_variant_new_boolean(TRUE));
+ return;
+ }
+
+ if (g_str_has_prefix((const char *)devc->buf, "err ")) {
+ sr_err("Device replied with an error: '%s'.", devc->buf);
+ return;
+ }
+
+ if (g_str_has_prefix((const char *)devc->buf, "set ")) {
+ tokens = g_strsplit((const char *)devc->buf, " ", 2);
+ devc->current_limit = g_ascii_strtod(tokens[1], NULL) / 1000;
+ g_strfreev(tokens);
+ g_cond_signal(&devc->current_limit_cond);
+ send_config_update_key(sdi, SR_CONF_CURRENT_LIMIT,
+ g_variant_new_double(devc->current_limit));
+ return;
+ }
+
+ if (g_str_has_prefix((const char *)devc->buf, "uvlo ")) {
+ tokens = g_strsplit((const char *)devc->buf, " ", 2);
+ devc->uvc_threshold = g_ascii_strtod(tokens[1], NULL) / 1000;
+ g_strfreev(tokens);
+ g_cond_signal(&devc->uvc_threshold_cond);
+ if (devc->uvc_threshold == .0) {
+ send_config_update_key(sdi, SR_CONF_UNDER_VOLTAGE_CONDITION,
+ g_variant_new_boolean(FALSE));
+ } else {
+ send_config_update_key(sdi, SR_CONF_UNDER_VOLTAGE_CONDITION,
+ g_variant_new_boolean(TRUE));
+ send_config_update_key(sdi,
+ SR_CONF_UNDER_VOLTAGE_CONDITION_THRESHOLD,
+ g_variant_new_double(devc->uvc_threshold));
+ }
return;
}
}
tokens = g_strsplit((const char *)devc->buf, " ", 3);
- voltage = g_ascii_strtod(tokens[2], NULL) / 1000;
- current = g_ascii_strtod(tokens[1], NULL) / 1000;
+ devc->voltage = g_ascii_strtod(tokens[2], NULL) / 1000;
+ devc->current = g_ascii_strtod(tokens[1], NULL) / 1000;
g_strfreev(tokens);
/* Begin frame. */
meaning.mq = SR_MQ_VOLTAGE;
meaning.mqflags = SR_MQFLAG_DC;
meaning.unit = SR_UNIT_VOLT;
- analog.data = &voltage;
+ encoding.digits = 3;
+ analog.data = &devc->voltage;
sr_session_send(sdi, &packet);
g_slist_free(l);
meaning.mq = SR_MQ_CURRENT;
meaning.mqflags = SR_MQFLAG_DC;
meaning.unit = SR_UNIT_AMPERE;
- analog.data = ¤t;
+ encoding.digits = 3;
+ analog.data = &devc->current;
sr_session_send(sdi, &packet);
g_slist_free(l);
packet.payload = NULL;
sr_session_send(sdi, &packet);
- devc->num_samples++;
+ sr_sw_limits_update_samples_read(&devc->limits, 1);
}
static void handle_new_data(const struct sr_dev_inst *sdi)
int len;
struct dev_context *devc;
struct sr_serial_dev_inst *serial;
+ char *buf;
devc = sdi->priv;
serial = sdi->conn;
- /* Try to get as much data as the buffer can hold. */
len = RELOADPRO_BUFSIZE - devc->buflen;
- len = serial_read_nonblocking(serial, devc->buf + devc->buflen, len);
- if (len == 0)
+ buf = devc->buf;
+ g_mutex_lock(&devc->acquisition_mutex);
+ if (serial_readline(serial, &buf, &len, 250) != SR_OK) {
+ g_mutex_unlock(&devc->acquisition_mutex);
+ return;
+ }
+
+ if (len == 0) {
+ g_mutex_unlock(&devc->acquisition_mutex);
return; /* No new bytes, nothing to do. */
+ }
if (len < 0) {
sr_err("Serial port read error: %d.", len);
+ g_mutex_unlock(&devc->acquisition_mutex);
return;
}
devc->buflen += len;
- if (g_str_has_suffix((const char *)devc->buf, "\n")) {
- handle_packet(sdi);
- memset(devc->buf, 0, RELOADPRO_BUFSIZE);
- devc->buflen = 0;
- }
+ handle_packet(sdi);
+ g_mutex_unlock(&devc->acquisition_mutex);
+ memset(devc->buf, 0, RELOADPRO_BUFSIZE);
+ devc->buflen = 0;
}
SR_PRIV int reloadpro_receive_data(int fd, int revents, void *cb_data)
{
struct sr_dev_inst *sdi;
struct dev_context *devc;
- int64_t t;
(void)fd;
handle_new_data(sdi);
- if (devc->limit_samples && (devc->num_samples >= devc->limit_samples)) {
- sr_info("Requested number of samples reached.");
- sdi->driver->dev_acquisition_stop(sdi);
- return TRUE;
- }
-
- if (devc->limit_msec) {
- t = (g_get_monotonic_time() - devc->starttime) / 1000;
- if (t > (int64_t)devc->limit_msec) {
- sr_info("Requested time limit reached.");
- sdi->driver->dev_acquisition_stop(sdi);
- return TRUE;
- }
- }
+ if (sr_sw_limits_check(&devc->limits))
+ sr_dev_acquisition_stop(sdi);
return TRUE;
}
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