+++ /dev/null
-/*
- * This file is part of the sigrok project.
- *
- * Copyright (C) 2012 Bert Vermeulen <bert@biot.com>
- *
- * 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
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * 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, see <http://www.gnu.org/licenses/>.
- */
-
-#include <glib.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <string.h>
-#include <errno.h>
-#include "libsigrok.h"
-#include "libsigrok-internal.h"
-#include "fluke-dmm.h"
-
-static const int hwopts[] = {
- SR_CONF_CONN,
- SR_CONF_SERIALCOMM,
- 0,
-};
-
-static const int hwcaps[] = {
- SR_CONF_MULTIMETER,
- SR_CONF_LIMIT_SAMPLES,
- SR_CONF_LIMIT_MSEC,
- SR_CONF_CONTINUOUS,
- 0,
-};
-
-SR_PRIV struct sr_dev_driver flukedmm_driver_info;
-static struct sr_dev_driver *di = &flukedmm_driver_info;
-
-static char *scan_conn[] = {
- /* 287/289 */
- "115200/8n1",
- /* 187/189 */
- "9600/8n1",
- /* Scopemeter 190 series */
- "1200/8n1",
- NULL
-};
-
-static const struct flukedmm_profile supported_flukedmm[] = {
- { FLUKE_187, "187", 100, 1000 },
- { FLUKE_287, "287", 100, 1000 },
- { FLUKE_190, "199B", 1000, 3500 },
-};
-
-
-/* Properly close and free all devices. */
-static int clear_instances(void)
-{
- struct sr_dev_inst *sdi;
- struct drv_context *drvc;
- struct dev_context *devc;
- GSList *l;
-
- if (!(drvc = di->priv))
- return SR_OK;
-
- drvc = di->priv;
- for (l = drvc->instances; l; l = l->next) {
- if (!(sdi = l->data))
- continue;
- if (!(devc = sdi->priv))
- continue;
- sr_serial_dev_inst_free(devc->serial);
- sr_dev_inst_free(sdi);
- }
- g_slist_free(drvc->instances);
- drvc->instances = NULL;
-
- return SR_OK;
-}
-
-static int hw_init(struct sr_context *sr_ctx)
-{
- struct drv_context *drvc;
-
- if (!(drvc = g_try_malloc0(sizeof(struct drv_context)))) {
- sr_err("Driver context malloc failed.");
- return SR_ERR_MALLOC;
- }
-
- drvc->sr_ctx = sr_ctx;
- di->priv = drvc;
-
- return SR_OK;
-}
-
-static GSList *fluke_scan(const char *conn, const char *serialcomm)
-{
- struct sr_dev_inst *sdi;
- struct drv_context *drvc;
- struct dev_context *devc;
- struct sr_probe *probe;
- struct sr_serial_dev_inst *serial;
- GSList *devices;
- int retry, len, i, s;
- char buf[128], *b, **tokens;
-
- if (!(serial = sr_serial_dev_inst_new(conn, serialcomm)))
- return NULL;
-
- if (serial_open(serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK)
- return NULL;
-
- drvc = di->priv;
- b = buf;
- retry = 0;
- devices = NULL;
- /* We'll try the discovery sequence three times in case the device
- * is not in an idle state when we send ID. */
- while (!devices && retry < 3) {
- retry++;
- serial_flush(serial);
- if (serial_write(serial, "ID\r", 3) == -1) {
- sr_err("Unable to send ID string: %s.",
- strerror(errno));
- continue;
- }
-
- /* Response is first a CMD_ACK byte (ASCII '0' for OK,
- * or '1' to signify an error. */
- len = 128;
- serial_readline(serial, &b, &len, 150);
- if (len != 1)
- continue;
- if (buf[0] != '0')
- continue;
-
- /* If CMD_ACK was OK, ID string follows. */
- len = 128;
- serial_readline(serial, &b, &len, 850);
- if (len < 10)
- continue;
- if (strcspn(buf, ",") < 15)
- /* Looks like it's comma-separated. */
- tokens = g_strsplit(buf, ",", 3);
- else
- /* Fluke 199B, at least, uses semicolon. */
- tokens = g_strsplit(buf, ";", 3);
- if (!strncmp("FLUKE", tokens[0], 5)
- && tokens[1] && tokens[2]) {
- for (i = 0; supported_flukedmm[i].model; i++) {
- if (strcmp(supported_flukedmm[i].modelname, tokens[0] + 6))
- continue;
- /* Skip leading spaces in version number. */
- for (s = 0; tokens[1][s] == ' '; s++);
- if (!(sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, "Fluke",
- tokens[0] + 6, tokens[1] + s)))
- return NULL;
- if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
- sr_err("Device context malloc failed.");
- return NULL;
- }
- devc->profile = &supported_flukedmm[i];
- devc->serial = serial;
- sdi->priv = devc;
- sdi->driver = di;
- if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "P1")))
- return NULL;
- sdi->probes = g_slist_append(sdi->probes, probe);
- drvc->instances = g_slist_append(drvc->instances, sdi);
- devices = g_slist_append(devices, sdi);
- break;
- }
- }
- g_strfreev(tokens);
- if (devices)
- /* Found one. */
- break;
- }
- serial_close(serial);
- if (!devices)
- sr_serial_dev_inst_free(serial);
-
- return devices;
-}
-
-static GSList *hw_scan(GSList *options)
-{
- struct sr_config *src;
- GSList *l, *devices;
- int i;
- const char *conn, *serialcomm;
-
- conn = serialcomm = NULL;
- for (l = options; l; l = l->next) {
- src = l->data;
- switch (src->key) {
- case SR_CONF_CONN:
- conn = src->value;
- break;
- case SR_CONF_SERIALCOMM:
- serialcomm = src->value;
- break;
- }
- }
- if (!conn)
- return NULL;
-
- if (serialcomm) {
- /* Use the provided comm specs. */
- devices = fluke_scan(conn, serialcomm);
- } else {
- for (i = 0; scan_conn[i]; i++) {
- if ((devices = fluke_scan(conn, scan_conn[i])))
- break;
- /* The Scopemeter 199B, at least, requires this
- * after all the 115k/9.6k confusion. */
- g_usleep(5000);
- }
- }
-
- return devices;
-}
-
-static GSList *hw_dev_list(void)
-{
- struct drv_context *drvc;
-
- drvc = di->priv;
-
- return drvc->instances;
-}
-
-static int hw_dev_open(struct sr_dev_inst *sdi)
-{
- struct dev_context *devc;
-
- if (!(devc = sdi->priv)) {
- sr_err("sdi->priv was NULL.");
- return SR_ERR_BUG;
- }
-
- if (serial_open(devc->serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK)
- return SR_ERR;
-
- sdi->status = SR_ST_ACTIVE;
-
- return SR_OK;
-}
-
-static int hw_dev_close(struct sr_dev_inst *sdi)
-{
- struct dev_context *devc;
-
- if (!(devc = sdi->priv)) {
- sr_err("sdi->priv was NULL.");
- return SR_ERR_BUG;
- }
-
- if (devc->serial && devc->serial->fd != -1) {
- serial_close(devc->serial);
- sdi->status = SR_ST_INACTIVE;
- }
-
- return SR_OK;
-}
-
-static int hw_cleanup(void)
-{
-
- clear_instances();
-
- return SR_OK;
-}
-
-static int config_get(int id, const void **data, const struct sr_dev_inst *sdi)
-{
- (void)sdi;
-
- switch (id) {
- case SR_DI_HWOPTS:
- *data = hwopts;
- break;
- case SR_DI_HWCAPS:
- *data = hwcaps;
- break;
- default:
- return SR_ERR_ARG;
- }
-
- return SR_OK;
-}
-
-static int config_set(int id, const void *value, const struct sr_dev_inst *sdi)
-{
- struct dev_context *devc;
-
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR;
-
- if (!(devc = sdi->priv)) {
- sr_err("sdi->priv was NULL.");
- return SR_ERR_BUG;
- }
-
- switch (id) {
- case SR_CONF_LIMIT_MSEC:
- /* TODO: not yet implemented */
- if (*(const uint64_t *)value == 0) {
- sr_err("LIMIT_MSEC can't be 0.");
- return SR_ERR;
- }
- devc->limit_msec = *(const uint64_t *)value;
- sr_dbg("Setting time limit to %" PRIu64 "ms.",
- devc->limit_msec);
- break;
- case SR_CONF_LIMIT_SAMPLES:
- devc->limit_samples = *(const uint64_t *)value;
- sr_dbg("Setting sample limit to %" PRIu64 ".",
- devc->limit_samples);
- break;
- default:
- sr_err("Unknown capability: %d.", id);
- return SR_ERR;
- break;
- }
-
- return SR_OK;
-}
-
-static int config_list(int key, const void **data, const struct sr_dev_inst *sdi)
-{
-
- (void)sdi;
-
- switch (key) {
- default:
- return SR_ERR_ARG;
- }
-
- return SR_OK;
-}
-
-static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
- void *cb_data)
-{
- struct sr_datafeed_packet packet;
- struct sr_datafeed_header header;
- struct dev_context *devc;
-
- if (!(devc = sdi->priv)) {
- sr_err("sdi->priv was NULL.");
- return SR_ERR_BUG;
- }
-
- sr_dbg("Starting acquisition.");
-
- devc->cb_data = cb_data;
-
- /* Send header packet to the session bus. */
- sr_dbg("Sending SR_DF_HEADER.");
- packet.type = SR_DF_HEADER;
- packet.payload = (uint8_t *)&header;
- header.feed_version = 1;
- gettimeofday(&header.starttime, NULL);
- sr_session_send(devc->cb_data, &packet);
-
- /* Poll every 100ms, or whenever some data comes in. */
- sr_source_add(devc->serial->fd, G_IO_IN, 50, fluke_receive_data, (void *)sdi);
-
- if (serial_write(devc->serial, "QM\r", 3) == -1) {
- sr_err("Unable to send QM: %s.", strerror(errno));
- return SR_ERR;
- }
- devc->cmd_sent_at = g_get_monotonic_time() / 1000;
- devc->expect_response = TRUE;
-
- return SR_OK;
-}
-
-static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
-{
- struct sr_datafeed_packet packet;
- struct dev_context *devc;
-
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR;
-
- if (!(devc = sdi->priv)) {
- sr_err("sdi->priv was NULL.");
- return SR_ERR_BUG;
- }
-
- sr_dbg("Stopping acquisition.");
-
- sr_source_remove(devc->serial->fd);
- hw_dev_close((struct sr_dev_inst *)sdi);
-
- /* Send end packet to the session bus. */
- sr_dbg("Sending SR_DF_END.");
- packet.type = SR_DF_END;
- sr_session_send(cb_data, &packet);
-
- return SR_OK;
-}
-
-SR_PRIV struct sr_dev_driver flukedmm_driver_info = {
- .name = "fluke-dmm",
- .longname = "Fluke 18x/28x series DMMs",
- .api_version = 1,
- .init = hw_init,
- .cleanup = hw_cleanup,
- .scan = hw_scan,
- .dev_list = hw_dev_list,
- .dev_clear = clear_instances,
- .config_get = config_get,
- .config_set = config_set,
- .config_list = config_list,
- .dev_open = hw_dev_open,
- .dev_close = hw_dev_close,
- .dev_acquisition_start = hw_dev_acquisition_start,
- .dev_acquisition_stop = hw_dev_acquisition_stop,
- .priv = NULL,
-};
projects / libsigrok.git / blobdiff