serial-hid: add support for (scrambling) Victor DMM cables

[libsigrok.git] / src / hardware / victor-dmm / protocol.c

diff --git a/src/hardware/victor-dmm/protocol.c b/src/hardware/victor-dmm/protocol.c
index 6af51419326694c6241c349b850bb5c04a70a393..23dfe7ab4e711c02756144bfa36411fa07233a92 100644 (file)
--- a/src/hardware/victor-dmm/protocol.c
+++ b/src/hardware/victor-dmm/protocol.c
@@ -17,10 +17,11 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <config.h>
 #include <glib.h>
 #include <string.h>
 #include <math.h>
-#include "libsigrok.h"
+#include <libsigrok/libsigrok.h>
 #include "libsigrok-internal.h"
 #include "protocol.h"
 
@@ -44,6 +45,9 @@ static void decode_buf(struct sr_dev_inst *sdi, unsigned char *data)
 {
        struct sr_datafeed_packet packet;
        struct sr_datafeed_analog analog;
+       struct sr_analog_encoding encoding;
+       struct sr_analog_meaning meaning;
+       struct sr_analog_spec spec;
        struct dev_context *devc;
        long factor, ivalue;
        uint8_t digits[4];
@@ -164,52 +168,53 @@ static void decode_buf(struct sr_dev_inst *sdi, unsigned char *data)
        if (minus)
                fvalue = -fvalue;
 
-       memset(&analog, 0, sizeof(struct sr_datafeed_analog));
+       sr_analog_init(&analog, &encoding, &meaning, &spec, 4);
 
        /* Measurement mode */
-       analog.mq = -1;
+       meaning.channels = sdi->channels;
+       meaning.mq = 0;
        switch (data[3]) {
        case 0x00:
                if (is_duty) {
-                       analog.mq = SR_MQ_DUTY_CYCLE;
-                       analog.unit = SR_UNIT_PERCENTAGE;
+                       meaning.mq = SR_MQ_DUTY_CYCLE;
+                       meaning.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;
+                       meaning.mq = SR_MQ_VOLTAGE;
+                       meaning.unit = SR_UNIT_VOLT;
+                       meaning.mqflags |= SR_MQFLAG_DIODE | SR_MQFLAG_DC;
                        if (ivalue < 0)
                                fvalue = NAN;
                } else {
                        if (ivalue < 0)
                                break;
-                       analog.mq = SR_MQ_VOLTAGE;
-                       analog.unit = SR_UNIT_VOLT;
+                       meaning.mq = SR_MQ_VOLTAGE;
+                       meaning.unit = SR_UNIT_VOLT;
                        if (is_ac)
-                               analog.mqflags |= SR_MQFLAG_AC;
+                               meaning.mqflags |= SR_MQFLAG_AC;
                        if (is_dc)
-                               analog.mqflags |= SR_MQFLAG_DC;
+                               meaning.mqflags |= SR_MQFLAG_DC;
                }
                break;
        case 0x02:
-               analog.mq = SR_MQ_CURRENT;
-               analog.unit = SR_UNIT_AMPERE;
+               meaning.mq = SR_MQ_CURRENT;
+               meaning.unit = SR_UNIT_AMPERE;
                if (is_ac)
-                       analog.mqflags |= SR_MQFLAG_AC;
+                       meaning.mqflags |= SR_MQFLAG_AC;
                if (is_dc)
-                       analog.mqflags |= SR_MQFLAG_DC;
+                       meaning.mqflags |= SR_MQFLAG_DC;
                break;
        case 0x04:
                if (is_continuity) {
-                       analog.mq = SR_MQ_CONTINUITY;
-                       analog.unit = SR_UNIT_BOOLEAN;
+                       meaning.mq = SR_MQ_CONTINUITY;
+                       meaning.unit = SR_UNIT_BOOLEAN;
                        fvalue = ivalue < 0 ? 0.0 : 1.0;
                } else {
-                       analog.mq = SR_MQ_RESISTANCE;
-                       analog.unit = SR_UNIT_OHM;
+                       meaning.mq = SR_MQ_RESISTANCE;
+                       meaning.unit = SR_UNIT_OHM;
                        if (ivalue < 0)
                                fvalue = INFINITY;
                }
@@ -219,58 +224,58 @@ static void decode_buf(struct sr_dev_inst *sdi, unsigned char *data)
                sr_dbg("Unknown measurement mode: 0x%.2x.", data[3]);
                break;
        case 0x10:
-               analog.mq = SR_MQ_FREQUENCY;
-               analog.unit = SR_UNIT_HERTZ;
+               meaning.mq = SR_MQ_FREQUENCY;
+               meaning.unit = SR_UNIT_HERTZ;
                break;
        case 0x20:
-               analog.mq = SR_MQ_CAPACITANCE;
-               analog.unit = SR_UNIT_FARAD;
+               meaning.mq = SR_MQ_CAPACITANCE;
+               meaning.unit = SR_UNIT_FARAD;
                break;
        case 0x40:
-               analog.mq = SR_MQ_TEMPERATURE;
-               analog.unit = SR_UNIT_CELSIUS;
+               meaning.mq = SR_MQ_TEMPERATURE;
+               meaning.unit = SR_UNIT_CELSIUS;
                break;
        case 0x80:
-               analog.mq = SR_MQ_TEMPERATURE;
-               analog.unit = SR_UNIT_FAHRENHEIT;
+               meaning.mq = SR_MQ_TEMPERATURE;
+               meaning.unit = SR_UNIT_FAHRENHEIT;
                break;
        default:
                sr_dbg("Unknown/invalid measurement mode: 0x%.2x.", data[3]);
                break;
        }
-       if (analog.mq == -1)
+       if (meaning.mq == 0)
                return;
 
        if (is_auto)
-               analog.mqflags |= SR_MQFLAG_AUTORANGE;
+               meaning.mqflags |= SR_MQFLAG_AUTORANGE;
        if (is_hold)
-               analog.mqflags |= SR_MQFLAG_HOLD;
+               meaning.mqflags |= SR_MQFLAG_HOLD;
        if (is_max)
-               analog.mqflags |= SR_MQFLAG_MAX;
+               meaning.mqflags |= SR_MQFLAG_MAX;
        if (is_min)
-               analog.mqflags |= SR_MQFLAG_MIN;
+               meaning.mqflags |= SR_MQFLAG_MIN;
        if (is_relative)
-               analog.mqflags |= SR_MQFLAG_RELATIVE;
+               meaning.mqflags |= SR_MQFLAG_RELATIVE;
 
-       analog.channels = sdi->channels;
-       analog.num_samples = 1;
        analog.data = &fvalue;
+       analog.num_samples = 1;
+
        packet.type = SR_DF_ANALOG;
        packet.payload = &analog;
-       sr_session_send(devc->cb_data, &packet);
+       sr_session_send(sdi, &packet);
 
-       devc->num_samples++;
+       sr_sw_limits_update_samples_read(&devc->limits, 1);
 }
 
 SR_PRIV int victor_dmm_receive_data(struct sr_dev_inst *sdi, unsigned char *buf)
 {
+       static const unsigned char obfuscation[DMM_DATA_SIZE] = "jodenxunickxia";
+       static const unsigned char shuffle[DMM_DATA_SIZE] = {
+               6, 13, 5, 11, 2, 7, 9, 8, 3, 10, 12, 0, 4, 1
+       };
        GString *dbg;
        int i;
        unsigned char 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
-       };
 
        for (i = 0; i < DMM_DATA_SIZE && buf[i] == 0; i++);
        if (i == DMM_DATA_SIZE) {