+++ /dev/null
-/*
- * This file is part of the sigrok project.
- *
- * Copyright (C) 2012 Uwe Hermann <uwe@hermann-uwe.de>
- * 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 2 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, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <stdlib.h>
-#include <string.h>
-#include <fcntl.h>
-#include "libsigrok.h"
-#include "libsigrok-internal.h"
-#include "genericdmm.h"
-
-extern SR_PRIV struct dmmchip dmmchip_victor70c;
-
-static struct sr_hwopt victor_70c_vidpid[] = {
- { SR_HWOPT_CONN, "1244.d237" },
- { 0, NULL }
-};
-static struct dev_profile dev_profiles[] = {
- { "victor-70c", "Victor", "70C", &dmmchip_victor70c,
- DMM_TRANSPORT_USBHID, 1000, victor_70c_vidpid
- },
- { NULL, NULL, NULL, NULL, 0, 0, NULL }
-};
-
-static const int hwopts[] = {
- SR_HWOPT_MODEL,
- SR_HWOPT_CONN,
- SR_HWOPT_SERIALCOMM,
- 0,
-};
-
-static const int hwcaps[] = {
- SR_HWCAP_MULTIMETER,
- SR_HWCAP_LIMIT_SAMPLES,
- SR_HWCAP_LIMIT_MSEC,
- SR_HWCAP_CONTINUOUS,
- 0,
-};
-
-static const char *probe_names[] = {
- "Probe",
- NULL,
-};
-
-SR_PRIV struct sr_dev_driver genericdmm_driver_info;
-static struct sr_dev_driver *gdi = &genericdmm_driver_info;
-/* TODO need a way to keep this local to the static library */
-static libusb_context *genericdmm_usb_context = NULL;
-static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data);
-
-static GSList *connect_serial(const char *conn, const char *serialcomm)
-{
- GSList *devices;
-
- devices = NULL;
-
- /* TODO */
- sr_dbg("Not yet implemented.");
-
- return devices;
-}
-
-GSList *genericdmm_connect(const char *conn, const char *serialcomm)
-{
- GSList *devices, *l;
- struct sr_dev_inst *sdi;
- struct dev_context *devc;
- struct drv_context *drvc;
- struct sr_probe *probe;
- struct libusb_device *ldev;
- int i, devcnt;
-
- drvc = gdi->priv;
-
- devices = NULL;
-
- if (serialcomm)
- /* Must be a serial port. */
- return connect_serial(conn, serialcomm);
-
- if (!(l = sr_usb_connect(genericdmm_usb_context, conn))) {
- return NULL;
- }
-
- for (i = 0; i < (int)g_slist_length(l); i++) {
- ldev = (struct libusb_device *)l->data;
-
- if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
- sr_err("Device context malloc failed.");
- return NULL;
- }
-
- devcnt = g_slist_length(drvc->instances);
- if (!(sdi = sr_dev_inst_new(devcnt, SR_ST_INACTIVE,
- NULL, NULL, NULL))) {
- sr_err("sr_dev_inst_new returned NULL.");
- return NULL;
- }
- sdi->priv = devc;
- if (!(probe = sr_probe_new(0, SR_PROBE_ANALOG, TRUE, "P1")))
- return NULL;
- sdi->probes = g_slist_append(sdi->probes, probe);
- devc->usb = sr_usb_dev_inst_new(
- libusb_get_bus_number(ldev),
- libusb_get_device_address(ldev), NULL);
- devices = g_slist_append(devices, sdi);
-
- return devices;
- }
-
- return NULL;
-}
-
-static GSList *default_scan(GSList *options)
-{
- GSList *l, *devices;
- struct sr_hwopt *opt;
- const char *conn, *serialcomm;
-
- devices = NULL;
- 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)
- devices = genericdmm_connect(conn, serialcomm);
-
- return devices;
-}
-
-static int clear_instances(void)
-{
- GSList *l;
- struct sr_dev_inst *sdi;
- struct dev_context *devc;
- struct drv_context *drvc;
-
- if (!(drvc = gdi->priv))
- return SR_OK;
-
- /* Properly close and free all devices. */
- for (l = drvc->instances; l; l = l->next) {
- if (!(sdi = l->data)) {
- /* Log error, but continue cleaning up the rest. */
- sr_err("sdi was NULL, continuing.");
- continue;
- }
- if (!(devc = sdi->priv)) {
- /* Log error, but continue cleaning up the rest. */
- sr_err("sdi->priv was NULL, continuing.");
- continue;
- }
-
- if (devc->profile) {
- switch (devc->profile->transport) {
- case DMM_TRANSPORT_USBHID:
- sr_usb_dev_inst_free(devc->usb);
- break;
- case DMM_TRANSPORT_SERIAL:
- if (devc->serial && devc->serial->fd != -1)
- serial_close(devc->serial->fd);
- sr_serial_dev_inst_free(devc->serial);
- break;
- }
- }
-
- 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("Driver context malloc failed.");
- return SR_ERR_MALLOC;
- }
-
- if (libusb_init(&genericdmm_usb_context) != 0) {
- sr_err("Failed to initialize USB.");
- return SR_ERR;
- }
-
- gdi->priv = drvc;
-
- return SR_OK;
-}
-
-static GSList *hw_scan(GSList *options)
-{
- GSList *l, *ldef, *defopts, *newopts, *devices;
- struct sr_hwopt *opt, *defopt;
- struct dev_profile *pr, *profile;
- struct sr_dev_inst *sdi;
- struct drv_context *drvc;
- struct dev_context *devc;
- const char *model;
-
- drvc = gdi->priv;
-
- /* Separate model from the options list. */
- model = NULL;
- newopts = NULL;
- for (l = options; l; l = l->next) {
- opt = l->data;
- if (opt->hwopt == SR_HWOPT_MODEL)
- model = opt->value;
- else
- /* New list with references to the original data. */
- newopts = g_slist_append(newopts, opt);
- }
- if (!model) {
- /* This driver only works when a model is specified. */
- return NULL;
- }
-
- /* Find a profile with this model name. */
- profile = NULL;
- for (pr = dev_profiles; pr->modelid; pr++) {
- if (!strcmp(pr->modelid, model)) {
- profile = pr;
- break;
- }
- }
- if (!profile) {
- sr_err("Unknown model %s.", model);
- return NULL;
- }
-
- /* Initialize the DMM chip driver. */
- if (profile->chip->init)
- profile->chip->init();
-
- /* Convert the profile's default options list to a GSList. */
- defopts = NULL;
- for (opt = profile->defaults_opts; opt->hwopt; opt++) {
- /* New list with references to const data in the profile. */
- defopts = g_slist_append(defopts, opt);
- }
-
- /* Options given as argument to this function override the
- * profile's default options.
- */
- for (ldef = defopts; ldef; ldef = ldef->next) {
- defopt = ldef->data;
- for (l = newopts; l; l = l->next) {
- opt = l->data;
- if (opt->hwopt == defopt->hwopt) {
- /* Override the default, and drop it from the
- * options list.
- */
- ldef->data = l->data;
- newopts = g_slist_remove(newopts, opt);
- break;
- }
- }
- }
- /* Whatever is left in newopts wasn't in the default options. */
- defopts = g_slist_concat(defopts, newopts);
- g_slist_free(newopts);
-
- if (profile->chip->scan)
- /* The DMM chip driver wants to do its own scanning. */
- devices = profile->chip->scan(defopts);
- else
- devices = default_scan(defopts);
- g_slist_free(defopts);
-
- if (devices) {
- /* TODO: need to fix up sdi->index fields */
- for (l = devices; l; l = l->next) {
- /* The default connection-based scanner doesn't really
- * know about profiles, so it never filled in the vendor
- * or model. Do that now.
- */
- sdi = l->data;
- devc = sdi->priv;
- devc->profile = profile;
- sdi->driver = gdi;
- if (!sdi->vendor)
- sdi->vendor = g_strdup(profile->vendor);
- if (!sdi->model)
- sdi->model = g_strdup(profile->model);
- /* Add a copy of these new devices to the driver instances. */
- drvc->instances = g_slist_append(drvc->instances, l->data);
- }
- }
-
- return devices;
-}
-
-static GSList *hw_dev_list(void)
-{
- struct drv_context *drvc;
-
- drvc = gdi->priv;
-
- return drvc->instances;
-}
-
-static int hw_dev_open(struct sr_dev_inst *sdi)
-{
- struct dev_context *devc;
- int ret;
-
- if (!(devc = sdi->priv)) {
- sr_err("sdi->priv was NULL.");
- return SR_ERR_BUG;
- }
-
- ret = SR_OK;
- switch (devc->profile->transport) {
- case DMM_TRANSPORT_USBHID:
- if (sdi->status == SR_ST_ACTIVE) {
- sr_err("Device already in use.");
- ret = SR_ERR;
- } else {
- ret = sr_usb_open(genericdmm_usb_context, devc->usb);
- }
- break;
- case DMM_TRANSPORT_SERIAL:
- sr_dbg("Opening serial port '%s'.", devc->serial->port);
- devc->serial->fd = serial_open(devc->serial->port, O_RDWR | O_NONBLOCK);
- if (devc->serial->fd == -1) {
- sr_err("Couldn't open serial port '%s'.",
- devc->serial->port);
- ret = SR_ERR;
- }
- // serial_set_params(devc->serial->fd, 2400, 8, 0, 1, 2);
- break;
- default:
- sr_err("No transport set.");
- ret = SR_ERR;
- }
-
- return ret;
-}
-
-static int hw_dev_close(struct sr_dev_inst *sdi)
-{
- struct dev_context *devc;
-
- if (!(devc = sdi->priv)) {
- sr_err("%s: sdi->priv was NULL.", __func__);
- return SR_ERR_BUG;
- }
-
- switch (devc->profile->transport) {
- case DMM_TRANSPORT_USBHID:
- /* TODO */
- break;
- case DMM_TRANSPORT_SERIAL:
- if (devc->serial && devc->serial->fd != -1) {
- serial_close(devc->serial->fd);
- devc->serial->fd = -1;
- sdi->status = SR_ST_INACTIVE;
- }
- break;
- }
-
- return SR_OK;
-}
-
-static int hw_cleanup(void)
-{
-
- clear_instances();
-
- if (genericdmm_usb_context)
- libusb_exit(genericdmm_usb_context);
-
- return SR_OK;
-}
-
-static int hw_info_get(int info_id, const void **data,
- const struct sr_dev_inst *sdi)
-{
- struct dev_context *devc;
-
- (void)sdi;
- (void)devc;
-
- switch (info_id) {
- case SR_DI_HWOPTS:
- *data = hwopts;
- break;
- case SR_DI_HWCAPS:
- *data = hwcaps;
- break;
- case SR_DI_NUM_PROBES:
- *data = GINT_TO_POINTER(1);
- break;
- case SR_DI_PROBE_NAMES:
- *data = probe_names;
- break;
- case SR_DI_CUR_SAMPLERATE:
- /* TODO get rid of this */
- *data = NULL;
- return SR_ERR_ARG;
- break;
- default:
- /* Unknown device info ID. */
- return SR_ERR_ARG;
- }
-
- return SR_OK;
-}
-
-static int hw_dev_config_set(const struct sr_dev_inst *sdi, int hwcap,
- const void *value)
-{
- struct dev_context *devc;
-
- if (!(devc = sdi->priv)) {
- sr_err("sdi->priv was NULL.");
- return SR_ERR_BUG;
- }
-
- switch (hwcap) {
- case SR_HWCAP_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_HWCAP_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.", hwcap);
- return SR_ERR;
- break;
- }
-
- return SR_OK;
-}
-
-static int receive_data(int fd, int revents, void *cb_data)
-{
- struct sr_dev_inst *sdi;
- struct dev_context *devc;
-
- (void)revents;
-
- if (!(sdi = cb_data))
- return TRUE;
-
- if (!(devc = sdi->priv))
- return TRUE;
-
- switch (devc->profile->transport) {
- case DMM_TRANSPORT_USBHID:
- if (devc->profile->chip->data)
- devc->profile->chip->data(sdi);
- break;
- case DMM_TRANSPORT_SERIAL:
- /* TODO */
- fd = fd;
- break;
- }
-
- if (devc->num_samples >= devc->limit_samples)
- hw_dev_acquisition_stop(sdi, cb_data);
-
- return TRUE;
-}
-
-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 sr_datafeed_meta_analog meta;
- 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);
-
- /* Send metadata about the SR_DF_ANALOG packets to come. */
- sr_dbg("Sending SR_DF_META_ANALOG.");
- packet.type = SR_DF_META_ANALOG;
- packet.payload = &meta;
- meta.num_probes = 1;
- sr_session_send(devc->cb_data, &packet);
-
- /* Hook up a proxy handler to receive data from the device. */
- switch (devc->profile->transport) {
- case DMM_TRANSPORT_USBHID:
- /* Callously using stdin here. This works because no G_IO_* flags
- * are set, but will certainly break when any other driver does
- * this, and runs at the same time as genericdmm.
- * We'll need a timeout-only source when revamping the whole
- * driver source system.
- */
- sr_source_add(0, 0, devc->profile->poll_timeout,
- receive_data, (void *)sdi);
- break;
- case DMM_TRANSPORT_SERIAL:
- /* TODO serial FD setup */
- // sr_source_add(devc->serial->fd, G_IO_IN, -1, receive_data, sdi);
- break;
- }
-
- return SR_OK;
-}
-
-static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
-{
- struct sr_datafeed_packet packet;
-
- (void)sdi;
-
- sr_dbg("Stopping acquisition.");
-
- /* Send end packet to the session bus. */
- sr_dbg("Sending SR_DF_END.");
- packet.type = SR_DF_END;
- sr_session_send(cb_data, &packet);
-
- sr_source_remove(0);
-
- return SR_OK;
-}
-
-SR_PRIV struct sr_dev_driver genericdmm_driver_info = {
- .name = "genericdmm",
- .longname = "Generic DMM",
- .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,
-};
+++ /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 "libsigrok.h"
-#include "libsigrok-internal.h"
-#include "genericdmm.h"
-#include <libusb.h>
-#include <string.h>
-#include <math.h>
-
-/* Message logging helpers with driver-specific prefix string. */
-#define DRIVER_LOG_DOMAIN "victor-dmm: "
-#define sr_log(l, s, args...) sr_log(l, DRIVER_LOG_DOMAIN s, ## args)
-#define sr_spew(s, args...) sr_spew(DRIVER_LOG_DOMAIN s, ## args)
-#define sr_dbg(s, args...) sr_dbg(DRIVER_LOG_DOMAIN s, ## args)
-#define sr_info(s, args...) sr_info(DRIVER_LOG_DOMAIN s, ## args)
-#define sr_warn(s, args...) sr_warn(DRIVER_LOG_DOMAIN s, ## args)
-#define sr_err(s, args...) sr_err(DRIVER_LOG_DOMAIN s, ## args)
-
-#define DMM_DATA_SIZE 14
-
-/* Reverse the high nibble into the low nibble */
-static uint8_t decode_digit(uint8_t in)
-{
- uint8_t out, i;
-
- out = 0;
- in >>= 4;
- for (i = 0x08; i; i >>= 1) {
- out >>= 1;
- if (in & i)
- out |= 0x08;
- }
-
- return out;
-}
-
-static void decode_buf(struct dev_context *devc, unsigned char *data)
-{
- struct sr_datafeed_packet packet;
- struct sr_datafeed_analog analog;
- long factor, ivalue;
- uint8_t digits[4];
- gboolean is_duty, is_continuity, is_diode, is_ac, is_dc, is_auto;
- gboolean is_hold, is_max, is_min, is_relative, minus;
- float fvalue;
-
- digits[0] = decode_digit(data[12]);
- digits[1] = decode_digit(data[11]);
- digits[2] = decode_digit(data[10]);
- digits[3] = decode_digit(data[9]);
-
- if (digits[0] == 0x0f && digits[1] == 0x00 && digits[2] == 0x0a &&
- digits[3] == 0x0f)
- /* The "over limit" (OL) display comes through like this */
- ivalue = -1;
- else if (digits[0] > 9 || digits[1] > 9 || digits[2] > 9 || digits[3] > 9)
- /* An invalid digit in any position denotes no value. */
- ivalue = -2;
- else {
- ivalue = digits[0] * 1000;
- ivalue += digits[1] * 100;
- ivalue += digits[2] * 10;
- ivalue += digits[3];
- }
-
- /* Decimal point position */
- switch (data[7] >> 4) {
- case 0x00:
- factor = 0;
- break;
- case 0x02:
- factor = 1;
- break;
- case 0x04:
- factor = 2;
- break;
- case 0x08:
- factor = 3;
- break;
- default:
- sr_err("Unknown decimal point value %.2x.", data[7]);
- }
-
- /* Minus flag */
- minus = data[2] & 0x01;
-
- /* Mode detail symbols on the right side of the digits */
- is_duty = is_continuity = is_diode = FALSE;
- switch (data[4]) {
- case 0x00:
- /* None. */
- break;
- case 0x01:
- /* Micro */
- factor += 6;
- break;
- case 0x02:
- /* Milli */
- factor += 3;
- break;
- case 0x04:
- /* Kilo */
- ivalue *= 1000;
- break;
- case 0x08:
- /* Mega */
- ivalue *= 1000000;
- break;
- case 0x10:
- /* Continuity shows up as Ohm + this bit */
- is_continuity = TRUE;
- break;
- case 0x20:
- /* Diode tester is Volt + this bit */
- is_diode = TRUE;
- break;
- case 0x40:
- is_duty = TRUE;
- break;
- case 0x80:
- /* Never seen */
- sr_dbg("Unknown mode right detail %.2x.", data[4]);
- break;
- default:
- sr_dbg("Unknown/invalid mode right detail %.2x.", data[4]);
- }
-
- /* Scale flags on the right, continued */
- is_max = is_min = TRUE;
- if (data[5] & 0x04)
- is_max = TRUE;
- if (data[5] & 0x08)
- is_min = TRUE;
- if (data[5] & 0x40)
- /* Nano */
- factor += 9;
-
- /* Mode detail symbols on the left side of the digits */
- is_auto = is_dc = is_ac = is_hold = is_relative = FALSE;
- if (data[6] & 0x04)
- is_auto = TRUE;
- if (data[6] & 0x08)
- is_dc = TRUE;
- if (data[6] & 0x10)
- is_ac = TRUE;
- if (data[6] & 0x20)
- is_relative = TRUE;
- if (data[6] & 0x40)
- is_hold = TRUE;
-
- fvalue = (float)ivalue / pow(10, factor);
- if (minus)
- fvalue = -fvalue;
-
- memset(&analog, 0, sizeof(struct sr_datafeed_analog));
-
- /* Measurement mode */
- analog.mq = -1;
- switch (data[3]) {
- case 0x00:
- if (is_duty) {
- analog.mq = SR_MQ_DUTY_CYCLE;
- analog.unit = SR_UNIT_PERCENTAGE;
- } else
- sr_dbg("Unknown measurement mode %.2x.", data[3]);
- break;
- case 0x01:
- if (is_diode) {
- analog.mq = SR_MQ_VOLTAGE;
- analog.unit = SR_UNIT_VOLT;
- analog.mqflags |= SR_MQFLAG_DIODE;
- if (ivalue < 0)
- fvalue = NAN;
- } else {
- if (ivalue < 0)
- break;
- analog.mq = SR_MQ_VOLTAGE;
- analog.unit = SR_UNIT_VOLT;
- if (is_ac)
- analog.mqflags |= SR_MQFLAG_AC;
- if (is_dc)
- analog.mqflags |= SR_MQFLAG_DC;
- }
- break;
- case 0x02:
- analog.mq = SR_MQ_CURRENT;
- analog.unit = SR_UNIT_AMPERE;
- if (is_ac)
- analog.mqflags |= SR_MQFLAG_AC;
- if (is_dc)
- analog.mqflags |= SR_MQFLAG_DC;
- break;
- case 0x04:
- if (is_continuity) {
- analog.mq = SR_MQ_CONTINUITY;
- analog.unit = SR_UNIT_BOOLEAN;
- fvalue = ivalue < 0 ? 0.0 : 1.0;
- } else {
- analog.mq = SR_MQ_RESISTANCE;
- analog.unit = SR_UNIT_OHM;
- if (ivalue < 0)
- fvalue = INFINITY;
- }
- break;
- case 0x08:
- /* Never seen */
- sr_dbg("Unknown measurement mode %.2x.", data[3]);
- break;
- case 0x10:
- analog.mq = SR_MQ_FREQUENCY;
- analog.unit = SR_UNIT_HERTZ;
- break;
- case 0x20:
- analog.mq = SR_MQ_CAPACITANCE;
- analog.unit = SR_UNIT_FARAD;
- break;
- case 0x40:
- analog.mq = SR_MQ_TEMPERATURE;
- analog.unit = SR_UNIT_CELSIUS;
- break;
- case 0x80:
- analog.mq = SR_MQ_TEMPERATURE;
- analog.unit = SR_UNIT_FAHRENHEIT;
- break;
- default:
- sr_dbg("Unknown/invalid measurement mode %.2x.", data[3]);
- }
- if (analog.mq == -1)
- return;
-
- if (is_auto)
- analog.mqflags |= SR_MQFLAG_AUTORANGE;
- if (is_hold)
- analog.mqflags |= SR_MQFLAG_HOLD;
- if (is_max)
- analog.mqflags |= SR_MQFLAG_MAX;
- if (is_min)
- analog.mqflags |= SR_MQFLAG_MIN;
- if (is_relative)
- analog.mqflags |= SR_MQFLAG_RELATIVE;
-
- analog.num_samples = 1;
- analog.data = &fvalue;
- packet.type = SR_DF_ANALOG;
- packet.payload = &analog;
- sr_session_send(devc->cb_data, &packet);
-
- devc->num_samples++;
-}
-
-static int victor70c_data(struct sr_dev_inst *sdi)
-{
- struct dev_context *devc;
- GString *dbg;
- int len, ret, i;
- unsigned char buf[DMM_DATA_SIZE], data[DMM_DATA_SIZE];
- unsigned char obfuscation[DMM_DATA_SIZE] = "jodenxunickxia";
- unsigned char shuffle[DMM_DATA_SIZE] = {
- 6, 13, 5, 11, 2, 7, 9, 8, 3, 10, 12, 0, 4, 1
- };
-
- devc = sdi->priv;
-
- if (sdi->status == SR_ST_INACTIVE) {
- /* First time through. */
- if (libusb_kernel_driver_active(devc->usb->devhdl, 0) == 1) {
- if (libusb_detach_kernel_driver(devc->usb->devhdl, 0) < 0) {
- sr_err("Failed to detach kernel driver.");
- return SR_ERR;
- }
- }
-
- if (libusb_claim_interface(devc->usb->devhdl, 0)) {
- sr_err("Failed to claim interface 0.");
- return SR_ERR;
- }
- sdi->status = SR_ST_ACTIVE;
- }
-
- ret = libusb_interrupt_transfer(devc->usb->devhdl, 0x81, buf, DMM_DATA_SIZE,
- &len, 100);
- if (ret != 0) {
- sr_err("Failed to get data: libusb error %d.", ret);
- return SR_ERR;
- }
-
- if (len != DMM_DATA_SIZE) {
- sr_dbg("Short packet: received %d/%d bytes.",
- len, DMM_DATA_SIZE);
- return SR_ERR;
- }
-
- for (i = 0; i < DMM_DATA_SIZE && buf[i] == 0; i++);
- if (i == DMM_DATA_SIZE) {
- /* This DMM outputs all zeroes from time to time, just ignore it. */
- sr_dbg("Received all zeroes.");
- return SR_OK;
- }
-
- /* Deobfuscate and reorder data. */
- for (i = 0; i < DMM_DATA_SIZE; i++)
- data[shuffle[i]] = (buf[i] - obfuscation[i]) & 0xff;
-
- if (sr_log_loglevel_get() >= SR_LOG_SPEW) {
- dbg = g_string_sized_new(128);
- g_string_printf(dbg, "Deobfuscated.");
- for (i = 0; i < DMM_DATA_SIZE; i++)
- g_string_append_printf(dbg, " %.2x", data[i]);
- sr_spew("%s", dbg->str);
- g_string_free(dbg, TRUE);
- }
-
- decode_buf(devc, data);
-
- return SR_OK;
-}
-
-SR_PRIV struct dmmchip dmmchip_victor70c = {
- .data = victor70c_data,
-};
projects / libsigrok.git / commitdiff