+++ /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 "libsigrok.h"
-#include "libsigrok-internal.h"
-#include "config.h"
-#include "fluke-dmm.h"
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <string.h>
-#include <errno.h>
-
-
-SR_PRIV struct sr_dev_driver flukedmm_driver_info;
-static struct sr_dev_driver *di = &flukedmm_driver_info;
-
-static const struct flukedmm_profile supported_flukedmm[] = {
- { FLUKE_187, "187" },
-};
-
-
-/* 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(void)
-{
- struct drv_context *drvc;
-
- if (!(drvc = g_try_malloc0(sizeof(struct drv_context)))) {
- sr_err("fluke-dmm: driver context malloc failed.");
- return SR_ERR;
- }
-
- di->priv = drvc;
-
- return SR_OK;
-}
-
-static int serial_readline(int fd, char **buf, int *buflen, uint64_t timeout_ms)
-{
- uint64_t start;
- int maxlen, len;
-
- timeout_ms *= 1000;
- start = g_get_monotonic_time();
-
- maxlen = *buflen;
- *buflen = len = 0;
- while(1) {
- len = maxlen - *buflen - 1;
- if (len < 1)
- break;
- len = serial_read(fd, *buf + *buflen, 1);
- if (len > 0) {
- *buflen += len;
- *(*buf + *buflen) = '\0';
- if (*buflen > 0 && *(*buf + *buflen - 1) == '\n') {
- /* Strip LF and terminate. */
- *(*buf + --*buflen) = '\0';
- break;
- }
- }
- if (g_get_monotonic_time() - start > timeout_ms)
- /* Timeout */
- break;
- g_usleep(2000);
- }
- sr_dbg("fluke-dmm: received %d: '%s'", *buflen, *buf);
-
- 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;
- GSList *devices;
- int fd, retry, len, i, s;
- char buf[128], *b, **tokens;
-
- if ((fd = serial_open(conn, O_RDWR|O_NONBLOCK)) == -1) {
- sr_err("fluke-dmm: unable to open %s: %s", conn, strerror(errno));
- return NULL;
- }
- if (serial_set_paramstr(fd, serialcomm) != SR_OK) {
- sr_err("fluke-dmm: unable to set serial parameters");
- 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(fd);
- if (serial_write(fd, "ID\r", 3) == -1) {
- sr_err("fluke-dmm: 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(fd, &b, &len, 150);
- if (len != 1)
- continue;
- if (buf[0] != '0')
- continue;
-
- /* If CMD_ACK was OK, ID string follows. */
- len = 128;
- serial_readline(fd, &b, &len, 150);
- if (len < 10)
- continue;
- 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_dbg("fluke-dmm: failed to malloc devc");
- return NULL;
- }
- devc->profile = &supported_flukedmm[i];
- devc->serial = sr_serial_dev_inst_new(conn, -1);
- devc->serialcomm = g_strdup(serialcomm);
- 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);
- }
- serial_close(fd);
-
- return devices;
-}
-
-static GSList *hw_scan(GSList *options)
-{
- struct sr_dev_inst *sdi;
- struct sr_hwopt *opt;
- GSList *l, *devices;
- const char *conn, *serialcomm;
-
- conn = serialcomm = NULL;
- for (l = options; l; l = l->next) {
- opt = l->data;
- switch (opt->hwopt) {
- case SR_HWOPT_CONN:
- conn = opt->value;
- break;
- case SR_HWOPT_SERIALCOMM:
- serialcomm = opt->value;
- break;
- }
- }
- if (!conn)
- return NULL;
-
- if (serialcomm) {
- /* Use the provided comm specs. */
- devices = fluke_scan(conn, serialcomm);
- } else {
- /* Try 115200, as used on 287/289. */
- devices = fluke_scan(conn, "115200/8n1");
- if (!devices)
- /* Fall back to 9600 for 187/189. */
- devices = fluke_scan(conn, "9600/8n1");
- }
-
- 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("fluke-dmm: sdi->priv was NULL.");
- return SR_ERR_BUG;
- }
-
- devc->serial->fd = serial_open(devc->serial->port, O_RDWR | O_NONBLOCK);
- if (devc->serial->fd == -1) {
- sr_err("fluke-dmm: Couldn't open serial port '%s'.",
- devc->serial->port);
- return SR_ERR;
- }
- if (serial_set_paramstr(devc->serial->fd, devc->serialcomm) != SR_OK) {
- sr_err("fluke-dmm: unable to set serial parameters");
- return SR_ERR;
- }
- sdi->status = SR_ST_ACTIVE;
-
- return SR_OK;
-}
-
-static int hw_dev_close(struct sr_dev_inst *sdi)
-{
-
- /* TODO */
-
- return SR_OK;
-}
-
-static int hw_cleanup(void)
-{
-
- clear_instances();
-
- /* TODO */
-
- return SR_OK;
-}
-
-static int hw_info_get(int info_id, const void **data,
- const struct sr_dev_inst *sdi)
-{
-
-
- switch (info_id) {
- /* TODO */
- default:
- return SR_ERR_ARG;
- }
-
- return SR_OK;
-}
-
-static int hw_dev_config_set(const struct sr_dev_inst *sdi, int hwcap,
- const void *value)
-{
- int ret;
-
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR;
-
- ret = SR_OK;
- switch (hwcap) {
- /* TODO */
- default:
- ret = SR_ERR_ARG;
- }
-
- return ret;
-}
-
-static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
- void *cb_data)
-{
-
- /* TODO */
-
- return SR_OK;
-}
-
-static int hw_dev_acquisition_stop(const struct sr_dev_inst *sdi,
- void *cb_data)
-{
-
- (void)cb_data;
-
- if (sdi->status != SR_ST_ACTIVE)
- return SR_ERR;
-
- /* TODO */
-
- 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,
- .dev_open = hw_dev_open,
- .dev_close = hw_dev_close,
- .info_get = hw_info_get,
- .dev_config_set = hw_dev_config_set,
- .dev_acquisition_start = hw_dev_acquisition_start,
- .dev_acquisition_stop = hw_dev_acquisition_stop,
- .priv = NULL,
-};
projects / libsigrok.git / blobdiff