* This file is part of the libsigrok project.
*
* Copyright (C) 2014 Matthias Heidbrink <m-sigrok@heidbrink.biz>
+ * Copyright (C) 2014 Bert Vermeulen <bert@biot.com> (code from atten-pps3xxx)
*
* 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
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
+/** @file
+ * <em>Motech LPS-30x series</em> power supply driver
+ * @internal
+ */
+
+#include <ctype.h>
+#include <errno.h>
+#include <math.h>
+#include <string.h>
+
#include "protocol.h"
+/* Forward declarations */
SR_PRIV struct sr_dev_driver motech_lps_301_driver_info;
-static struct sr_dev_driver *di = &motech_lps_301_driver_info;
+SR_PRIV int lps_read_reply(struct sr_serial_dev_inst *serial, char **buf, int *buflen);
+SR_PRIV int lps_send_va(struct sr_serial_dev_inst *serial, const char* fmt, va_list args);
+SR_PRIV int lps_cmd_ok(struct sr_serial_dev_inst *serial, const char* fmt, ...);
+SR_PRIV int lps_cmd_reply(char* reply, struct sr_serial_dev_inst *serial, const char* fmt, ...);
+SR_PRIV int lps_query_status(struct sr_dev_inst* sdi);
+
+/* Serial communication parameters */
+#define SERIALCOMM "2400/8n1/dtr=1/rts=1/flow=0"
+
+#define VENDOR_MOTECH "Motech"
+
+/** Driver scanning options. */
+static const int32_t hwopts[] = {
+ SR_CONF_CONN,
+ SR_CONF_SERIALCOMM,
+};
+
+/** Hardware capabilities generic. */
+static const int32_t hwcaps[] = {
+ /* Device class */
+ SR_CONF_POWER_SUPPLY,
+ /* Aquisition modes. */
+ SR_CONF_LIMIT_SAMPLES,
+ SR_CONF_LIMIT_MSEC,
+ SR_CONF_CONTINUOUS,
+ /* Device configuration */
+ SR_CONF_OUTPUT_CHANNEL,
+};
+
+/** Hardware capabilities channel 1, 2. */
+static const int32_t hwcaps_ch12[] = {
+ SR_CONF_OUTPUT_VOLTAGE,
+ SR_CONF_OUTPUT_VOLTAGE_MAX,
+ SR_CONF_OUTPUT_CURRENT,
+ SR_CONF_OUTPUT_CURRENT_MAX,
+ SR_CONF_OUTPUT_ENABLED,
+};
+
+/** Hardware capabilities channel 3. (LPS-304/305 only). */
+static const int32_t hwcaps_ch3[] = {
+ SR_CONF_OUTPUT_VOLTAGE,
+ SR_CONF_OUTPUT_ENABLED,
+};
+
+static const char *channel_modes[] = {
+ "Independent",
+ "Track1",
+ "Track2",
+};
+
+static struct lps_modelspec models[] = {
+ { LPS_UNKNOWN, "Dummy", 0,
+ {
+
+ }
+ },
+ { LPS_301, "LPS-301", 1,
+ {
+ /* Channel 1 */
+ { { 0, 32, 0.01 }, { 0.005, 2, 0.001 } },
+ },
+ },
+ { LPS_302, "LPS-302", 1,
+ {
+ /* Channel 1 */
+ { { 0, 32, 0.01 }, { 0.005, 3, 0.001 } },
+ },
+ },
+ { LPS_303, "LPS-303", 1,
+ {
+ /* Channel 1 */
+ { { 0, 32, 0.01 }, { 0.005, 3, 0.001 } },
+ },
+ },
+ { LPS_304, "LPS-304", 3,
+ {
+ /* Channel 1 */
+ { { 0, 32, 0.01 }, { 0.005, 3, 0.001 } },
+ /* Channel 2 */
+ { { 0, 32, 0.01 }, { 0.005, 3, 0.001 } },
+ /* Channel 3 */
+ { { 5, 5, 0.0 }, { 0.005, 3, 0.001 } },
+ },
+ },
+ { LPS_305, "LPS-305", 3,
+ {
+ /* Channel 1 */
+ { { 0, 32, 0.01 }, { 0.005, 3, 0.001 } },
+ /* Channel 2 */
+ { { 0, 32, 0.01 }, { 0.005, 3, 0.001 } },
+ /* Channel 3 */
+ { { 3.3, 5, 1.7 }, { 0.005, 3, 0.001 } },
+ },
+ },
+};
-static int init(struct sr_context *sr_ctx)
+static int init_lps301(struct sr_context *sr_ctx)
{
- return std_init(sr_ctx, di, LOG_PREFIX);
+ return std_init(sr_ctx, &motech_lps_301_driver_info, LOG_PREFIX);
}
-static GSList *scan(GSList *options)
+/** Send command to device with va_list.
+ */
+SR_PRIV int lps_send_va(struct sr_serial_dev_inst *serial, const char* fmt, va_list args)
{
- struct drv_context *drvc;
- GSList *devices;
+ int retc;
+ char auxfmt[LINELEN_MAX];
+ char buf[LINELEN_MAX];
- (void)options;
+ snprintf(auxfmt, sizeof(auxfmt), "%s\r\n", fmt);
+ vsnprintf(buf, sizeof(buf), auxfmt, args);
- devices = NULL;
- drvc = di->priv;
- drvc->instances = NULL;
+ sr_spew("lps_send_va: \"%s\"", buf);
- /* TODO: scan for devices, either based on a SR_CONF_CONN option
- * or on a USB scan. */
+ retc = serial_write_nonblocking(serial, buf, strlen(buf));
- return devices;
+ if (retc < 0)
+ return SR_ERR;
+
+ return SR_OK;
}
-static GSList *dev_list(void)
+/** Send command to device.
+ */
+SR_PRIV int lps_send_req(struct sr_serial_dev_inst *serial, const char* fmt, ...)
{
- return ((struct drv_context *)(di->priv))->instances;
+ int retc;
+ va_list args;
+
+ va_start(args, fmt);
+ retc = lps_send_va(serial, fmt, args);
+ va_end(args);
+
+ return retc;
}
-static int dev_clear(void)
+/** Send command and consume simple OK reply. */
+SR_PRIV int lps_cmd_ok(struct sr_serial_dev_inst *serial, const char* fmt, ...)
{
- return std_dev_clear(di, NULL);
+ int retc;
+ va_list args;
+ char buf[LINELEN_MAX];
+ char* bufptr;
+ int buflen;
+
+ /* Send command */
+ va_start(args, fmt);
+ retc = lps_send_va(serial, fmt, args);
+ va_end(args);
+
+ if (retc != SR_OK)
+ return SR_ERR;
+
+ /* Read reply */
+ buf[0] = '\0';
+ bufptr = buf;
+ buflen = sizeof(buf);
+ retc = lps_read_reply(serial, &bufptr, &buflen);
+ if ((retc == SR_OK) && (buflen == 0))
+ return SR_OK;
+
+ return SR_ERR;
}
-static int dev_open(struct sr_dev_inst *sdi)
+/** Send command and read reply string.
+ * \param reply Pointer to buffer of size LINELEN_MAX. Will be NUL-terminated.
+ */
+SR_PRIV int lps_cmd_reply(char* reply, struct sr_serial_dev_inst *serial, const char* fmt, ...)
{
- (void)sdi;
+ int retc;
+ va_list args;
+ char buf[LINELEN_MAX];
+ char* bufptr;
+ int buflen;
+
+ reply[0] = '\0';
+
+ /* Send command */
+ va_start(args, fmt);
+ retc = lps_send_va(serial, fmt, args);
+ va_end(args);
+
+ if (retc != SR_OK)
+ return SR_ERR;
+
+ /* Read reply */
+ buf[0] = '\0';
+ bufptr = buf;
+ buflen = sizeof(buf);
+ retc = lps_read_reply(serial, &bufptr, &buflen);
+ if ((retc == SR_OK) && (buflen > 0)) {
+ strcpy(reply, buf);
+ return SR_OK;
+ }
- /* TODO: get handle from sdi->conn and open it. */
+ return SR_ERR;
+}
- sdi->status = SR_ST_ACTIVE;
+/** Process integer value returned by STATUS command. */
+SR_PRIV int lps_process_status(struct sr_dev_inst* sdi, int stat)
+{
+ struct dev_context* devc;
+ int tracking_mode;
+
+ devc = (struct dev_context*)sdi->priv;
+
+ sr_spew("Status: %d", stat);
+ devc->channel_status[0].cc_mode = (stat & 0x01) != 0;
+ sr_spew("Channel 1 %s mode", devc->channel_status[0].cc_mode?"CC":"CV");
+ if (devc->model->num_channels > 1) {
+ devc->channel_status[1].cc_mode = (stat & 0x02) != 0;
+ sr_spew("Channel 2 %s mode", devc->channel_status[1].cc_mode?"CC":"CV");
+
+ tracking_mode = (stat & 0x0c) >> 2;
+ switch (tracking_mode) {
+ case 0: devc->tracking_mode = 0;
+ break;
+ case 2: devc->tracking_mode = 1;
+ break;
+ case 3: devc->tracking_mode = 2;
+ break;
+ default:
+ sr_err("Illegal channel tracking mode %d!", tracking_mode);
+ devc->tracking_mode = 0;
+ break;
+ }
+
+ sr_spew("Channel tracking: %d", devc->tracking_mode);
+ }
+ devc->channel_status[0].output_enabled = devc->channel_status[1].output_enabled = stat&0x040?TRUE:FALSE;
+ sr_spew("Channel 1%s output: %s", devc->model->num_channels > 1?"+2":"", devc->channel_status[0].output_enabled?"ON":"OFF");
+ if (devc->model->num_channels > 2) {
+ devc->channel_status[2].output_enabled = stat&0x010?TRUE:FALSE;
+ devc->channel_status[2].output_voltage_last = stat&0x020?3.3:5;
+ sr_spew("Channel 3 output: %s, U=%02f V, overload=%d",
+ devc->channel_status[2].output_enabled?"ON":"OFF",
+ devc->channel_status[2].output_voltage_last,
+ stat&0x080?1:0);
+ }
+ sr_spew("Fan=%d, beep=%d, CC output compensated=%d", stat&0x0100?1:0, stat&0x0200?1:0, stat&0x0400?1:0);
return SR_OK;
}
-static int dev_close(struct sr_dev_inst *sdi)
+/** Send STATUS commend and process status string. */
+SR_PRIV int lps_query_status(struct sr_dev_inst* sdi)
{
- (void)sdi;
+ char buf[LINELEN_MAX];
+ int stat;
+ const char* ptr;
+ struct dev_context* devc;
- /* TODO: get handle from sdi->conn and close it. */
+ devc = (struct dev_context*)sdi->priv;
- sdi->status = SR_ST_INACTIVE;
+ devc->req_sent_at = g_get_real_time();
- return SR_OK;
+ if (lps_cmd_reply(buf, sdi->conn, "STATUS") < 0) {
+ sr_err("%s: Failed to read status: %d %s", __func__, errno, strerror(errno));
+ return SR_ERR;
+ }
+
+ /* Jump across leading zeros to prevent sr_atoi() believing this to be octal. */
+ for (ptr = buf; isspace(*buf) || (*ptr == '0'); ptr++)
+ ;
+
+ if (sr_atoi(ptr, &stat) != SR_OK)
+ return SR_ERR;
+
+ return lps_process_status(sdi, stat);
}
-static int cleanup(void)
+static gint64 calc_timeout_ms(gint64 start_us)
{
- dev_clear();
+ gint64 result = REQ_TIMEOUT_MS - ((g_get_real_time() - start_us) / 1000);
- /* TODO: free other driver resources, if any. */
+ if (result < 0)
+ return 0;
- return SR_OK;
+ return result;
}
-static int config_get(int key, GVariant **data, const struct sr_dev_inst *sdi,
- const struct sr_channel_group *cg)
+/** Read message into buf until "OK" received.
+ * \retval SR_OK Msg received; buf and buflen contain result, if any except OK.
+ * \retval SR_ERR Error, including timeout.
+*/
+SR_PRIV int lps_read_reply(struct sr_serial_dev_inst *serial, char **buf, int *buflen)
{
- int ret;
+ int retries;
+ char buf2[LINELEN_MAX];
+ char *buf2ptr;
+ int buf2len;
+ gint64 timeout_start;
+
+ *buf[0] = '\0';
+
+ /* Read one line. It is either a data message or "OK". */
+ timeout_start = g_get_real_time();
+ buf2len = *buflen;
+ /* Up to 5 tries because serial_readline() will consume only one CR or LF per
+ * call, but device sends up to 4 in a row. */
+ for (retries = 0; retries < 5; retries++) {
+ *buflen = buf2len;
+ if (serial_readline(serial, buf, buflen, calc_timeout_ms(timeout_start)) != SR_OK)
+ return SR_ERR;
+ if (!strcmp(*buf, "OK")) { /* We got an OK! */
+ *buf[0] = '\0';
+ *buflen = 0;
+ return SR_OK;
+ }
+ if (*buflen > 0) /* We got a msg! */
+ break;
+ }
- (void)sdi;
- (void)data;
- (void)cg;
+ /* A data msg is in buf (possibly ERROR), need to consume "OK". */
+ buf2[0] = '\0';
+ buf2ptr = buf2;
+ for (retries = 0; retries < 5; retries++) {
+ buf2len = sizeof(buf2);
+ if (serial_readline(serial, &buf2ptr, &buf2len, calc_timeout_ms(timeout_start)) != SR_OK)
+ return SR_ERR;
+
+ if (!strcmp(buf2ptr, "OK")) { /* We got an OK! */
+ if (!strcmp(*buf, "ERROR")) { /* OK came after msg ERROR! */
+ sr_spew("ERROR found!");
+ *buf[0] = '\0';
+ *buflen = 0;
+ return SR_ERR;
+ }
+ return SR_OK;
+ }
+ }
- ret = SR_OK;
- switch (key) {
- /* TODO */
- default:
- return SR_ERR_NA;
+ return SR_ERR; /* Timeout! */
+}
+
+/** Scan for LPS-300 series device.
+ */
+static GSList *doScan(lps_modelid modelid, struct sr_dev_driver *drv, GSList *options)
+{
+ struct sr_dev_inst *sdi;
+ struct drv_context *drvc;
+ struct dev_context *devc;
+ struct sr_serial_dev_inst *serial;
+ struct sr_channel *ch;
+ struct sr_channel_group *cg;
+ GSList *devices;
+ const char *conn, *serialcomm;
+ int cnt;
+ gchar buf[LINELEN_MAX];
+ gchar channel[10];
+ char* verstr;
+
+ sdi = NULL;
+ devc = NULL;
+ conn = serialcomm = NULL;
+ devices = NULL;
+
+ drvc = drv->priv;
+ drvc->instances = NULL;
+
+ sr_spew("scan() called!");
+
+ /* Process and check options. */
+ if (sr_serial_extract_options(options, &conn, &serialcomm) != SR_OK)
+ return NULL;
+ if (!serialcomm)
+ serialcomm = SERIALCOMM;
+
+ /* Init serial port. */
+ if (!(serial = sr_serial_dev_inst_new(conn, serialcomm)))
+ return NULL;
+
+ if (serial_open(serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK)
+ goto exit_err;
+
+ /* Query and verify model string. */
+ serial_flush(serial);
+ if (lps_cmd_reply(buf, serial, "MODEL") != SR_OK)
+ return NULL;
+
+ /* Check model string. */
+ if (strncmp(buf, "LPS-", 4)) {
+ sr_spew("Unknown model code \"%s\"!", buf);
+ return NULL;
+ }
+
+ /* Bug in device FW 1.17, model number is empty, so this can't work with this FW! */
+ if (modelid == LPS_UNKNOWN) {
+ g_strstrip(buf);
+ for (cnt = LPS_301; cnt <= LPS_305; cnt++) {
+ if (!strcmp(buf, models[cnt].modelstr)) {
+ modelid = cnt;
+ break;
+ }
+ }
+ if (modelid == LPS_UNKNOWN) {
+ sr_err("Unable to detect model from model string '%s'!", buf);
+ return NULL;
+ }
}
- return ret;
+ /* Query version */
+ verstr = NULL;
+ if (lps_cmd_reply(buf, serial, "VERSION") == SR_OK) {
+ if (strncmp(buf, "Ver-", 4)) {
+ sr_spew("Version string %s not recognized.", buf);
+ goto exit_err;
+ }
+
+
+ g_strstrip(buf);
+ verstr = buf + 4;
+ }
+ else /* Bug in device FW 1.17: Quering version string fails while output is active.
+ Therefore just print an error message, but do not exit with error. */
+ sr_err("Failed to query for hardware version: %d %s", errno, strerror(errno));
+
+ sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, VENDOR_MOTECH, models[modelid].modelstr, verstr);
+ sdi->driver = drv;
+ sdi->inst_type = SR_INST_SERIAL;
+ sdi->conn = serial;
+
+ devc = g_malloc0(sizeof(struct dev_context));
+ devc->model = &models[modelid];
+ devc->limit_samples = 0;
+ devc->limit_msec = 0;
+ devc->num_samples = 0;
+ devc->elapsed_msec = g_timer_new();
+
+ sdi->priv = devc;
+
+ /* Setup channels and channel groups. */
+ for (cnt = 0; cnt < models[modelid].num_channels; cnt++) {
+ snprintf(channel, sizeof(channel), "CH%d", cnt + 1);
+ ch = sr_channel_new(cnt, SR_CHANNEL_ANALOG, TRUE, channel);
+ sdi->channels = g_slist_append(sdi->channels, ch);
+
+ devc->channel_status[cnt].info = g_slist_append(NULL, ch);
+
+ cg = g_malloc(sizeof(struct sr_channel_group));
+ snprintf(channel, sizeof(channel), "CG%d", cnt+1);
+ cg->name = g_strdup(channel);
+ cg->priv = NULL;
+ cg->channels = g_slist_append(NULL, ch);
+
+ sdi->channel_groups = g_slist_append(sdi->channel_groups, cg);
+ }
+
+ drvc->instances = g_slist_append(drvc->instances, sdi);
+ devices = g_slist_append(devices, sdi);
+
+ /* Query status */
+ if (lps_query_status(sdi) != SR_OK)
+ goto exit_err;
+
+ serial_close(serial);
+ if (!devices)
+ sr_serial_dev_inst_free(serial);
+
+ return devices;
+
+exit_err:
+ sr_info("%s: Error!", __func__);
+
+ if (serial) {
+ serial_close(serial);
+ sr_serial_dev_inst_free(serial);
+ }
+ if (devc)
+ g_free(devc);
+ if (sdi)
+ sr_dev_inst_free(sdi);
+
+ return NULL;
}
-static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi,
+/** Scan for LPS-301 device. */
+static GSList *scan_lps301(GSList *options)
+{
+ return doScan(LPS_301, &motech_lps_301_driver_info, options);
+}
+
+static GSList *doDevList(struct sr_dev_driver *drv)
+{
+ return ((struct drv_context *)(drv->priv))->instances;
+}
+
+static GSList *dev_list_lps301(void)
+{
+ return doDevList(&motech_lps_301_driver_info);
+}
+
+static void dev_clear_private(struct dev_context* devc)
+{
+ int ch_idx;
+
+ /* Free channel_status.info (list only, data owned by sdi). */
+ for (ch_idx = 0; ch_idx < devc->model->num_channels; ch_idx++)
+ g_slist_free(devc->channel_status[ch_idx].info);
+
+ g_timer_destroy(devc->elapsed_msec);
+}
+
+static int dev_clear_lps301(void)
+{
+ return std_dev_clear(&motech_lps_301_driver_info, (std_dev_clear_callback)dev_clear_private);
+}
+
+static int cleanup(void)
+{
+ return dev_clear_lps301();
+}
+
+static int config_get(int key, GVariant **data, const struct sr_dev_inst *sdi,
const struct sr_channel_group *cg)
{
- int ret;
+ struct dev_context *devc;
+ struct sr_channel *ch;
+ int ch_idx;
+
+ if (!sdi)
+ return SR_ERR_ARG;
+
+ devc = sdi->priv;
+
+ if (!cg) {
+ /* No channel group: global options. */
+ switch (key) {
+ case SR_CONF_LIMIT_SAMPLES:
+ *data = g_variant_new_uint64(devc->limit_samples);
+ break;
+ case SR_CONF_LIMIT_MSEC:
+ *data = g_variant_new_uint64(devc->limit_msec);
+ break;
+ case SR_CONF_OUTPUT_CHANNEL:
+ *data = g_variant_new_string(channel_modes[devc->tracking_mode]);
+ break;
+ default:
+ return SR_ERR_NA;
+ }
+ } else {
+ /* We only ever have one channel per channel group in this driver. */
+ ch = cg->channels->data;
+ ch_idx = ch->index;
+ switch (key) {
+ case SR_CONF_OUTPUT_VOLTAGE:
+ *data = g_variant_new_double(devc->channel_status[ch_idx].output_voltage_last);
+ break;
+ case SR_CONF_OUTPUT_VOLTAGE_MAX:
+ *data = g_variant_new_double(devc->channel_status[ch_idx].output_voltage_max);
+ break;
+ case SR_CONF_OUTPUT_CURRENT:
+ *data = g_variant_new_double(devc->channel_status[ch_idx].output_current_last);
+ break;
+ case SR_CONF_OUTPUT_CURRENT_MAX:
+ *data = g_variant_new_double(devc->channel_status[ch_idx].output_current_max);
+ break;
+ case SR_CONF_OUTPUT_ENABLED:
+ *data = g_variant_new_boolean(devc->channel_status[ch_idx].output_enabled);
+ break;
+ default:
+ return SR_ERR_NA;
+ }
+ }
- (void)data;
- (void)cg;
+ return SR_OK;
+}
+
+static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi,
+ const struct sr_channel_group *cg)
+{
+ struct dev_context *devc;
+ struct sr_channel *ch;
+ gdouble dval;
+ int ch_idx;
+ const char *sval;
+ gboolean bval;
+ int idx;
+ gboolean found;
if (sdi->status != SR_ST_ACTIVE)
return SR_ERR_DEV_CLOSED;
- ret = SR_OK;
- switch (key) {
- /* TODO */
- default:
- ret = SR_ERR_NA;
+ devc = sdi->priv;
+
+ /* Cannot change settings while aquisition active, would cause a mess with commands.
+ * Changing this would be possible, but tricky. */
+ if (devc->acq_running)
+ return SR_ERR_NA;
+
+ if (!cg) {
+ /* No channel group: global options. */
+ switch (key) {
+ case SR_CONF_LIMIT_MSEC:
+ if (g_variant_get_uint64(data) == 0) {
+ sr_err("LIMIT_MSEC can't be 0.");
+ return SR_ERR;
+ }
+ devc->limit_msec = g_variant_get_uint64(data);
+ sr_dbg("Setting time limit to %" PRIu64 "ms.",
+ devc->limit_msec);
+ break;
+ case SR_CONF_LIMIT_SAMPLES:
+ devc->limit_samples = g_variant_get_uint64(data);
+ sr_dbg("Setting sample limit to %" PRIu64 ".",
+ devc->limit_samples);
+ break;
+ case SR_CONF_OUTPUT_CHANNEL:
+ sval = g_variant_get_string(data, NULL);
+ found = FALSE;
+ for (idx = 0; idx < (int)ARRAY_SIZE(channel_modes); idx++)
+ {
+ if (!strcmp(sval, channel_modes[idx])) {
+ found = TRUE;
+ if (devc->tracking_mode == idx)
+ break; /* Nothing to do! */
+ devc->tracking_mode = idx;
+ if (devc->model->modelid >= LPS_304) /* No use to set anything in the smaller models. */
+ return lps_cmd_ok(sdi->conn, "TRACK%1d", devc->tracking_mode);
+ }
+ if (devc->model->modelid <= LPS_303) /* Only first setting possible for smaller models. */
+ break;
+ }
+ if (!found) {
+ return SR_ERR_ARG;
+ }
+ break;
+ default:
+ return SR_ERR_NA;
+ }
+ } else {
+ /* Channel group specified: per-channel options. */
+ /* We only ever have one channel per channel group in this driver. */
+ ch = cg->channels->data;
+ ch_idx = ch->index;
+
+ switch (key) {
+ case SR_CONF_OUTPUT_VOLTAGE_MAX:
+ dval = g_variant_get_double(data);
+ if (dval < 0 || dval > devc->model->channels[ch_idx].voltage[1])
+ return SR_ERR_ARG;
+ if (ch_idx == 2) {
+ if (devc->model->modelid < LPS_304)
+ return SR_ERR_ARG;
+
+ if (fabs(dval - 5.000) <= 0.001)
+ dval = 5.0;
+ else if ((devc->model->modelid >= LPS_305) && (fabs(dval - 3.300) <= 0.001))
+ dval = 3.3;
+ else return SR_ERR_ARG;
+ }
+
+ devc->channel_status[ch_idx].output_voltage_max = dval;
+ if (ch_idx == 2)
+ return lps_cmd_ok(sdi->conn, "VDD%1.0f", trunc(dval));
+ else
+ return lps_cmd_ok(sdi->conn, "VSET%d %05.3f", ch_idx+1, dval);
+ break;
+ case SR_CONF_OUTPUT_CURRENT_MAX:
+ dval = g_variant_get_double(data);
+ if (dval < 0 || dval > devc->model->channels[ch_idx].current[1])
+ return SR_ERR_ARG;
+ if (ch_idx == 2) /* No current setting for CH3. */
+ return SR_ERR_NA;
+ devc->channel_status[ch_idx].output_current_max = dval;
+ return lps_cmd_ok(sdi->conn, "ISET%d %05.4f", ch_idx+1, dval);
+ break;
+ case SR_CONF_OUTPUT_ENABLED:
+ bval = g_variant_get_boolean(data);
+ if (bval == devc->channel_status[ch_idx].output_enabled) /* Nothing to do. */
+ break;
+ devc->channel_status[ch_idx].output_enabled = bval;
+ if (ch_idx != 2) { /* Channels 1,2 can be set only together. */
+ devc->channel_status[ch_idx^1].output_enabled = bval;
+ return lps_cmd_ok(sdi->conn, "OUT%1d", (int)bval);
+ } else { /* Channel 3: No command to disable output, set voltage to 0 instead. */
+ if (bval)
+ return lps_cmd_ok(sdi->conn, "VDD%1.0f", devc->channel_status[ch_idx].output_voltage_max);
+ else
+ return lps_cmd_ok(sdi->conn, "VDD0");
+ }
+ break;
+ default:
+ return SR_ERR_NA;
+ }
}
- return ret;
+ return SR_OK;
}
static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi,
const struct sr_channel_group *cg)
{
- int ret;
+ struct dev_context *devc;
+ struct sr_channel *ch;
+ int ch_idx, i;
+ GVariant *gvar;
+ GVariantBuilder gvb;
- (void)sdi;
(void)data;
- (void)cg;
- ret = SR_OK;
+ /* Driver options, no device instance necessary. */
switch (key) {
- /* TODO */
+ case SR_CONF_SCAN_OPTIONS:
+ *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
+ hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t));
+ return SR_OK;
+ default:
+ if (sdi == NULL)
+ return SR_ERR_ARG;
+
+ devc = sdi->priv;
+ }
+
+ /* Device options, independant from channel groups. */
+ if (cg == NULL) {
+ switch (key) {
+ case SR_CONF_DEVICE_OPTIONS:
+ *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
+ hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t));
+ return SR_OK;
+ case SR_CONF_OUTPUT_CHANNEL:
+ if (devc->model->modelid <= LPS_303) {
+ /* The 1-channel models. */
+ *data = g_variant_new_strv(channel_modes, 1);
+ } else {
+ /* The other models support all modes. */
+ *data = g_variant_new_strv(channel_modes, ARRAY_SIZE(channel_modes));
+ }
+ return SR_OK;
+ break;
+ default:
+ return SR_ERR_NA;
+ }
+ }
+
+ /* Device options, depending on channel groups. */
+ ch = cg->channels->data;
+ ch_idx = ch->index;
+ switch (key) {
+ case SR_CONF_DEVICE_OPTIONS:
+ if ((ch_idx == 0) || (ch_idx == 1)) /* CH1, CH2 */
+ *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
+ hwcaps_ch12, ARRAY_SIZE(hwcaps_ch12), sizeof(int32_t));
+ else /* Must be CH3 */
+ *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32,
+ hwcaps_ch3, ARRAY_SIZE(hwcaps_ch3), sizeof(int32_t));
+ break;
+ case SR_CONF_OUTPUT_VOLTAGE_MAX:
+ g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
+ /* Min, max, step. */
+ for (i = 0; i < 3; i++) {
+ gvar = g_variant_new_double(devc->model->channels[ch_idx].voltage[i]);
+ g_variant_builder_add_value(&gvb, gvar);
+ }
+ *data = g_variant_builder_end(&gvb);
+ break;
+ case SR_CONF_OUTPUT_CURRENT_MAX:
+ g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
+ /* Min, max, step. */
+ for (i = 0; i < 3; i++) {
+ gvar = g_variant_new_double(devc->model->channels[ch_idx].current[i]);
+ g_variant_builder_add_value(&gvb, gvar);
+ }
+ *data = g_variant_builder_end(&gvb);
+ 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)
{
- (void)sdi;
- (void)cb_data;
+ struct dev_context *devc;
+ struct sr_serial_dev_inst *serial;
if (sdi->status != SR_ST_ACTIVE)
return SR_ERR_DEV_CLOSED;
- /* TODO: configure hardware, reset acquisition state, set up
- * callbacks and send header packet. */
+ devc = sdi->priv;
+
+ devc->acq_running = TRUE;
+
+ serial = sdi->conn;
+ serial_source_add(serial, G_IO_IN, 50, motech_lps_30x_receive_data, (void *)sdi);
+ std_session_send_df_header(cb_data, LOG_PREFIX);
+
+ /* Start timer, if required. */
+ if (devc->limit_msec)
+ g_timer_start(devc->elapsed_msec);
+
+ devc->acq_req = AQ_NONE;
+ /* Do not start polling device here, the read function will do it in 50 ms. */
return SR_OK;
}
static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
{
- (void)cb_data;
+ struct dev_context *devc;
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR_DEV_CLOSED;
+ /* Stop timer, if required. */
+ if (sdi && (devc = sdi->priv) && devc->limit_msec)
+ g_timer_stop(devc->elapsed_msec);
- /* TODO: stop acquisition. */
-
- return SR_OK;
+ return std_serial_dev_acquisition_stop(sdi, cb_data, std_serial_dev_close,
+ sdi->conn, LOG_PREFIX);
}
SR_PRIV struct sr_dev_driver motech_lps_301_driver_info = {
.name = "motech-lps-301",
.longname = "Motech LPS-301",
.api_version = 1,
- .init = init,
+ .init = init_lps301,
.cleanup = cleanup,
- .scan = scan,
- .dev_list = dev_list,
- .dev_clear = dev_clear,
+ .scan = scan_lps301,
+ .dev_list = dev_list_lps301,
+ .dev_clear = dev_clear_lps301,
.config_get = config_get,
.config_set = config_set,
.config_list = config_list,
- .dev_open = dev_open,
- .dev_close = dev_close,
+ .dev_open = std_serial_dev_open,
+ .dev_close = std_serial_dev_close,
.dev_acquisition_start = dev_acquisition_start,
.dev_acquisition_stop = dev_acquisition_stop,
.priv = NULL,
* This file is part of the libsigrok project.
*
* Copyright (C) 2014 Matthias Heidbrink <m-sigrok@heidbrink.biz>
+ * Copyright (C) 2014 Bert Vermeulen <bert@biot.com> (code from atten-pps3xxx)
*
* 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
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
+/** @file
+ * <em>Motech LPS-30x series</em> power supply driver
+ * @internal
+ */
+
+#include <errno.h>
+#include <string.h>
+
#include "protocol.h"
+/** Send data packets for current measurements. */
+static void send_data(struct sr_dev_inst *sdi)
+{
+ struct dev_context *devc;
+ struct sr_datafeed_packet packet;
+ struct sr_datafeed_analog analog;
+ int i;
+ float data[MAX_CHANNELS];
+
+ devc = sdi->priv;
+ packet.type = SR_DF_ANALOG;
+ packet.payload = &analog;
+ analog.channels = sdi->channels;
+ analog.num_samples = 1;
+
+ analog.mq = SR_MQ_VOLTAGE;
+ analog.unit = SR_UNIT_VOLT;
+ analog.mqflags = SR_MQFLAG_DC;
+ analog.data = data;
+ for (i = 0; i < devc->model->num_channels; i++)
+ analog.data[i] = devc->channel_status[i].output_voltage_last; /* Value always 3.3 or 5 for channel 3, if present! */
+ sr_session_send(sdi, &packet);
+
+ analog.mq = SR_MQ_CURRENT;
+ analog.unit = SR_UNIT_AMPERE;
+ analog.mqflags = 0;
+ analog.data = data;
+ for (i = 0; i < devc->model->num_channels; i++)
+ analog.data[i] = devc->channel_status[i].output_current_last; /* Value always 0 for channel 3, if present! */
+ sr_session_send(sdi, &packet);
+
+ devc->num_samples++;
+}
+
+/** Process a complete line (without CR/LF) in buf. */
+static void process_line(struct sr_dev_inst *sdi)
+{
+ struct dev_context *devc;
+ struct sr_serial_dev_inst *serial;
+ double dbl;
+ int auxint;
+
+ devc = sdi->priv;
+ serial = sdi->conn;
+
+ switch (devc->acq_req_pending) {
+ case 0: /* Should not happen... */
+ break;
+ case 1: /* Waiting for data reply to request */
+ /* Convert numbers */
+ switch (devc->acq_req) {
+ case AQ_U1: case AQ_U2: case AQ_I1: case AQ_I2:
+ if (sr_atod(devc->buf, &dbl) != SR_OK) {
+ sr_err("Failed to convert '%s' to double, errno=%d %s",
+ devc->buf, errno, strerror(errno));
+ dbl = 0.0;
+ }
+ break;
+ case AQ_STATUS:
+ if (sr_atoi(devc->buf, &auxint) != SR_OK) {
+ sr_err("Failed to convert '%s' to int, errno=%d %s",
+ devc->buf, errno, strerror(errno));
+ auxint = 0;
+ }
+ break;
+ default:
+ break;
+ }
+
+ switch (devc->acq_req) {
+ case AQ_U1:
+ devc->channel_status[0].output_voltage_last = dbl;
+ break;
+ case AQ_I1:
+ devc->channel_status[0].output_current_last = dbl;
+ break;
+ case AQ_U2:
+ devc->channel_status[1].output_voltage_last = dbl;
+ break;
+ case AQ_I2:
+ devc->channel_status[1].output_current_last = dbl;
+ break;
+ case AQ_STATUS: /* Process status and generate data. */
+ if (lps_process_status(sdi, auxint) == SR_OK) {
+ send_data(sdi);
+ }
+ break;
+ default:
+ break;
+ }
+
+ devc->acq_req_pending = 2;
+ break;
+ case 2: /* Waiting for OK after request */
+ if (strcmp(devc->buf, "OK")) {
+ sr_err("Unexpected reply while waiting for OK: '%s'", devc->buf);
+ }
+ devc->acq_req_pending = 0;
+ break;
+ }
+
+ devc->buf[0] = '\0';
+ devc->buflen = 0;
+}
+
+
SR_PRIV int motech_lps_30x_receive_data(int fd, int revents, void *cb_data)
{
- const struct sr_dev_inst *sdi;
+ struct sr_dev_inst *sdi;
struct dev_context *devc;
+ struct sr_serial_dev_inst *serial;
+ // char achar;
+ int len;
+ gdouble elapsed_s;
(void)fd;
if (!(devc = sdi->priv))
return TRUE;
- if (revents == G_IO_IN) {
- /* TODO */
+ serial = sdi->conn;
+
+ if (revents == G_IO_IN) { /* Serial data arrived. */
+ while (LINELEN_MAX - devc->buflen - 2 > 0) {
+ len = serial_read(serial, devc->buf + devc->buflen, 1);
+ if (len < 1)
+ break;
+
+ /* Eliminate whitespace at beginning of line. */
+ if (g_ascii_isspace(devc->buf[0])) {
+ devc->buf[0] = '\0';
+ devc->buflen = 0;
+ continue;
+ }
+
+ // achar = *(devc->buf + devc->buflen);
+ // sr_spew("read 0x%02x/%d/'%c'", achar, achar, achar);
+
+ devc->buflen += len;
+ devc->buf[devc->buflen] = '\0';
+
+ /* If line complete, process msg. */
+ if ((devc->buflen > 0) && ((devc->buf[devc->buflen-1] == '\r') || devc->buf[devc->buflen-1] == '\n')) {
+ devc->buflen--;
+ devc->buf[devc->buflen] = '\0';
+
+ sr_spew("Line complete: \"%s\"", devc->buf);
+ process_line(sdi);
+ }
+ }
+ }
+
+ /* If number of samples or time limit reached, stop acquisition. */
+ if (devc->limit_samples && (devc->num_samples >= devc->limit_samples))
+ sdi->driver->dev_acquisition_stop(sdi, cb_data);
+
+ if (devc->limit_msec) {
+ elapsed_s = g_timer_elapsed(devc->elapsed_msec, NULL);
+ if ((elapsed_s * 1000) >= devc->limit_msec)
+ sdi->driver->dev_acquisition_stop(sdi, cb_data);
+ }
+
+ /* Request next packet, if required. */
+ if ((sdi->status == SR_ST_ACTIVE) && (devc->acq_running)){
+ if (devc->acq_req_pending) {
+ gint64 elapsed_us = g_get_monotonic_time() - devc->req_sent_at;
+ if (elapsed_us > (REQ_TIMEOUT_MS * 1000)) {
+ sr_spew("Request timeout: req=%d t=%lldus", (int)devc->acq_req, elapsed_us);
+ devc->acq_req_pending = 0;
+ }
+ }
+ if (devc->acq_req_pending == 0) {
+ switch(devc->acq_req)
+ {
+ case AQ_NONE: /* Fall through */
+ case AQ_STATUS:
+ devc->acq_req = AQ_U1;
+ lps_send_req(serial, "VOUT1");
+ break;
+ case AQ_U1:
+ devc->acq_req = AQ_I1;
+ lps_send_req(serial, "IOUT1");
+ break;
+ case AQ_I1:
+ if (devc->model->num_channels == 1) {
+ devc->acq_req = AQ_STATUS;
+ lps_send_req(serial, "STATUS");
+ } else {
+ devc->acq_req = AQ_U2;
+ lps_send_req(serial, "VOUT2");
+ }
+ break;
+ case AQ_U2:
+ devc->acq_req = AQ_I2;
+ lps_send_req(serial, "IOUT2");
+ break;
+ case AQ_I2:
+ devc->acq_req = AQ_STATUS;
+ lps_send_req(serial, "STATUS");
+ break;
+ default:
+ sr_err("Illegal devc->acq_req=%d", devc->acq_req);
+ return SR_ERR;
+ }
+ devc->req_sent_at = g_get_real_time();
+ devc->acq_req_pending = 1;
+ }
}
return TRUE;
projects / libsigrok.git / commitdiff