* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
+/** @file
+ * <em>Manson HCS-3xxx Series</em> power supply driver
+ * @internal
+ */
+
#include "protocol.h"
static const int32_t hwopts[] = {
devices = NULL;
conn = NULL;
serialcomm = NULL;
+ devc = NULL;
for (l = options; l; l = l->next) {
src = l->data;
/* Get the device model. */
memset(&reply, 0, sizeof(reply));
- serial_write_blocking(serial, "GMOD\r", 5);
- serial_read_blocking(serial, &reply, 8);
+ if ((hcs_send_cmd(serial, "GMOD\r") < 0) ||
+ (hcs_read_reply(serial, 2, reply, sizeof(reply)) < 0))
+ return NULL;
tokens = g_strsplit((const gchar *)&reply, "\r", 2);
model_id = -1;
if (!strcmp(models[i].id, tokens[0]))
model_id = i;
}
+ g_strfreev(tokens);
+
if (model_id < 0) {
sr_err("Unknown model id '%s' detected, aborting.", tokens[0]);
return NULL;
}
+ /* Init device instance, etc. */
if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, "Manson",
models[model_id].name, NULL))) {
sr_err("Failed to create device instance.");
return NULL;
}
- g_strfreev(tokens);
-
sdi->inst_type = SR_INST_SERIAL;
sdi->conn = serial;
sdi->driver = di;
if (!(ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "CH1"))) {
sr_err("Failed to create channel.");
- return NULL;
+ goto exit_err;
}
sdi->channels = g_slist_append(sdi->channels, ch);
sdi->priv = devc;
+ /* Get current device status. */
+ if ((hcs_send_cmd(serial, "GETD\r") < 0) ||
+ (hcs_read_reply(serial, 2, reply, sizeof(reply)) < 0))
+ return NULL;
+ tokens = g_strsplit((const gchar *)&reply, "\r", 2);
+ if (hcs_parse_volt_curr_mode(sdi, tokens) < 0)
+ goto exit_err;
+
drvc->instances = g_slist_append(drvc->instances, sdi);
devices = g_slist_append(devices, sdi);
sr_serial_dev_inst_free(serial);
return devices;
+
+exit_err:
+ sr_dev_inst_free(sdi);
+ if (devc)
+ g_free(devc);
+ return NULL;
}
static GSList *dev_list(void)
* This file is part of the libsigrok project.
*
* Copyright (C) 2014 Uwe Hermann <uwe@hermann-uwe.de>
+ * Copyright (C) 2014 Matthias Heidbrink <m-sigrok@heidbrink.biz>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
+/** @file
+ * <em>Manson HCS-3xxx Series</em> power supply driver
+ * @internal
+ */
+
#include "protocol.h"
#define REQ_TIMEOUT_MS 500
-static int send_cmd(struct sr_serial_dev_inst *serial, const char *cmd)
+SR_PRIV int hcs_send_cmd(struct sr_serial_dev_inst *serial, const char *cmd, ...)
{
int ret;
+ char cmdbuf[50];
char *cmd_esc;
+ va_list args;
+
+ va_start(args, cmd);
+ vsnprintf(cmdbuf, sizeof(cmdbuf), cmd, args);
+ va_end(args);
- cmd_esc = g_strescape(cmd, NULL);
+ cmd_esc = g_strescape(cmdbuf, NULL);
sr_dbg("Sending '%s'.", cmd_esc);
+ g_free(cmd_esc);
- if ((ret = serial_write_blocking(serial, cmd, strlen(cmd))) < 0) {
+ if ((ret = serial_write_blocking(serial, cmdbuf, strlen(cmdbuf))) < 0) {
sr_err("Error sending command: %d.", ret);
- g_free(cmd_esc);
return ret;
}
- g_free(cmd_esc);
-
return ret;
}
-static int parse_volt_curr_mode(struct sr_dev_inst *sdi, char **tokens)
+/**
+ * Read data from interface into buffer blocking until @a lines number of \\r chars
+ * received.
+ * @param serial Previously initialized serial port structure.
+ * @param[in] lines Number of \\r-terminated lines to read (1-n).
+ * @param buf Buffer for result. Contents is NUL-terminated on success.
+ * @param[in] buflen Buffer length (>0).
+ * @retval SR_OK Lines received and ending with "OK\r" (success).
+ * @retval SR_ERR Error.
+ * @retval SR_ERR_ARG Invalid argument.
+ */
+SR_PRIV int hcs_read_reply(struct sr_serial_dev_inst *serial, int lines, char* buf, int buflen)
+{
+ int l_recv = 0;
+ int bufpos = 0;
+ int retc;
+
+ if (!serial || (lines <= 0) || !buf || (buflen <= 0))
+ return SR_ERR_ARG;
+
+ while ((l_recv < lines) && (bufpos < (buflen + 1))) {
+ retc = serial_read_blocking(serial, &buf[bufpos], 1);
+ if (retc != 1)
+ return SR_ERR;
+ if (buf[bufpos] == '\r')
+ l_recv++;
+ bufpos++;
+ }
+ buf[bufpos] = '\0';
+
+ if ((l_recv == lines) && (g_str_has_suffix(buf, "OK\r")))
+ return SR_OK;
+ else
+ return SR_ERR;
+}
+
+/** Interpret result of GETD command. */
+SR_PRIV int hcs_parse_volt_curr_mode(struct sr_dev_inst *sdi, char **tokens)
{
char *str;
double val;
/* Byte 8: Mode ('0' means CV, '1' means CC). */
devc->cc_mode = (tokens[0][8] == '1');
+ /* Output enabled? Works because voltage cannot be set to 0.0 directly. */
+ devc->output_enabled = devc->voltage != 0.0;
+
return SR_OK;
}
{
struct dev_context *devc;
char *reply_esc, **tokens;
+ int retc;
devc = sdi->priv;
reply_esc = g_strescape(devc->buf, NULL);
sr_dbg("Received '%s'.", reply_esc);
+ g_free(reply_esc);
tokens = g_strsplit(devc->buf, "\r", 0);
-
- if (parse_volt_curr_mode(sdi, tokens) < 0)
+ retc = hcs_parse_volt_curr_mode(sdi, tokens);
+ g_strfreev(tokens);
+ if (retc < 0)
return SR_ERR;
- send_sample(sdi);
- g_free(reply_esc);
- g_strfreev(tokens);
+ send_sample(sdi);
return SR_OK;
}
return SR_OK;
}
+/** Driver/serial data reception function. */
SR_PRIV int hcs_receive_data(int fd, int revents, void *cb_data)
{
struct sr_dev_inst *sdi;
}
/* Send command to get voltage, current, and mode (CC or CV). */
- if (send_cmd(serial, "GETD\r") < 0)
+ if (hcs_send_cmd(serial, "GETD\r") < 0)
return TRUE;
devc->req_sent_at = g_get_monotonic_time();
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
+/** @file
+ * <em>Manson HCS-3xxx Series</em> power supply driver
+ * @internal
+ */
+
#ifndef LIBSIGROK_HARDWARE_MANSON_HCS_3XXX_PROTOCOL_H
#define LIBSIGROK_HARDWARE_MANSON_HCS_3XXX_PROTOCOL_H
MANSON_HCS_3604,
};
+/** Information on a single model. */
struct hcs_model {
int model_id; /**< Model info */
char *name; /**< Model name */
/** Private, per-device-instance driver context. */
struct dev_context {
- struct hcs_model *model;
+ struct hcs_model *model; /**< Model informaion. */
uint64_t limit_samples;
uint64_t limit_msec;
void *cb_data;
- float voltage;
- float current;
- gboolean cc_mode;
+ float voltage; /**< Last voltage value [V] read from device. */
+ float current; /**< Last current value [A] read from device. */
+ gboolean cc_mode; /**< Device is in constant current mode (otherwise constant voltage). */
+
+ gboolean output_enabled; /**< Is the output enabled? */
char buf[50];
int buflen;
};
+SR_PRIV int hcs_parse_volt_curr_mode(struct sr_dev_inst *sdi, char **tokens);
+SR_PRIV int hcs_read_reply(struct sr_serial_dev_inst *serial, int lines, char* buf, int buflen);
+SR_PRIV int hcs_send_cmd(struct sr_serial_dev_inst *serial, const char *cmd, ...);
SR_PRIV int hcs_receive_data(int fd, int revents, void *cb_data);
#endif
projects / libsigrok.git / commitdiff