siglent-sds: Random cosmetics, drop unused stuff.

[libsigrok.git] / src / hardware / siglent-sds / protocol.c

diff --git a/src/hardware/siglent-sds/protocol.c b/src/hardware/siglent-sds/protocol.c
index af20fde00c952894c157a17a0c2a062c665829f3..523b93f4bd056a9b0b0398c5ed3c7c064f146915 100644 (file)
--- a/src/hardware/siglent-sds/protocol.c
+++ b/src/hardware/siglent-sds/protocol.c
@@ -193,7 +193,7 @@ SR_PRIV int siglent_sds_capture_start(const struct sr_dev_inst *sdi)
                        }
                        memcpy(&framecount, buf + 40, 4);
                        if (devc->limit_frames > framecount)
-                               sr_err("Frame limit higher that frames in buffer of device!");
+                               sr_err("Frame limit higher than frames in buffer of device!");
                        else if (devc->limit_frames == 0)
                                devc->limit_frames = framecount;
                        sr_dbg("Starting data capture for history frameset %" PRIu64 " of %" PRIu64,
@@ -257,9 +257,8 @@ static int siglent_sds_read_header(struct sr_dev_inst *sdi, int channelIndex)
        struct sr_scpi_dev_inst *scpi = sdi->conn;
        struct dev_context *devc = sdi->priv;
        char *buf = (char *)devc->buffer;
-       int ret;
-       int descLength;
-       int blockOffset = 15; /* Offset for descriptor block. */
+       int ret, desc_length;
+       int block_offset = 15; /* Offset for descriptor block. */
        long dataLength = 0;
 
        /* Read header from device. */
@@ -271,18 +270,18 @@ static int siglent_sds_read_header(struct sr_dev_inst *sdi, int channelIndex)
        }
        sr_dbg("Device returned %i bytes.", ret);
        devc->num_header_bytes += ret;
-       buf += blockOffset; /* Skip to start descriptor block. */
+       buf += block_offset; /* Skip to start descriptor block. */
 
        /* Parse WaveDescriptor header. */
-       memcpy(&descLength, buf + 36, 4); /* Descriptor block length */
+       memcpy(&desc_length, buf + 36, 4); /* Descriptor block length */
        memcpy(&dataLength, buf + 60, 4); /* Data block length */
 
        devc->vdiv[channelIndex] = 2;
        devc->vert_offset[channelIndex] = 0;
-       devc->blockHeaderSize = descLength + 15;
+       devc->block_header_size = desc_length + 15;
        ret = dataLength;
 
-       sr_dbg("Received data block header: '%s' -> block length %d", buf, ret);
+       sr_dbg("Received data block header: '%s' -> block length %d.", buf, ret);
 
        return ret;
 }
@@ -381,7 +380,7 @@ SR_PRIV int siglent_sds_receive(int fd, int revents, void *cb_data)
                len = ACQ_BUFFER_SIZE;
 
        /* Offset the data block buffer past the IEEE header and description header. */
-       devc->buffer += devc->blockHeaderSize;
+       devc->buffer += devc->block_header_size;
 
        if (len == -1) {
                sr_err("Read error, aborting capture.");
@@ -400,8 +399,7 @@ SR_PRIV int siglent_sds_receive(int fd, int revents, void *cb_data)
                float offset = devc->vert_offset[ch->index];
                GArray *float_data;
                static GArray *data;
-               float voltage;
-               float vdivlog;
+               float voltage, vdivlog;
                int digits;
 
                data = g_array_sized_new(FALSE, FALSE, sizeof(uint8_t), len);
@@ -489,12 +487,10 @@ SR_PRIV int siglent_sds_get_dev_cfg(const struct sr_dev_inst *sdi)
 {
        struct dev_context *devc;
        struct sr_channel *ch;
-       char *cmd;
+       char *cmd, *response;
        unsigned int i;
-       int res;
-       char *response;
+       int res, num_tokens;
        gchar **tokens;
-       int num_tokens;
 
        devc = sdi->priv;
 
@@ -661,47 +657,46 @@ SR_PRIV int siglent_sds_get_dev_cfg_horizontal(const struct sr_dev_inst *sdi)
        struct dev_context *devc;
        char *cmd;
        int res;
-       char *samplePointsString;
-       float samplerateScope;
-       float fvalue;
+       char *sample_points_string;
+       float samplerate_scope, fvalue;
        char *first, *concat;
 
        devc = sdi->priv;
        cmd = g_strdup_printf("SANU? C1");
-       res = sr_scpi_get_string(sdi->conn, cmd, &samplePointsString);
+       res = sr_scpi_get_string(sdi->conn, cmd, &sample_points_string);
        g_free(cmd);
        if (res != SR_OK)
                return SR_ERR;
-       if (g_strstr_len(samplePointsString, -1, "Mpts") != NULL) {
-               samplePointsString[strlen(samplePointsString) - 4] = '\0';
+       if (g_strstr_len(sample_points_string, -1, "Mpts") != NULL) {
+               sample_points_string[strlen(sample_points_string) - 4] = '\0';
 
-               if (g_strstr_len(samplePointsString, -1, ".") != NULL) {
-                       first = strtok(samplePointsString, ".");
+               if (g_strstr_len(sample_points_string, -1, ".") != NULL) {
+                       first = strtok(sample_points_string, ".");
                        concat = strcat(first, strtok(NULL, "."));
                        if (sr_atof_ascii(concat, &fvalue) != SR_OK || fvalue == 0.0) {
                                sr_dbg("Invalid float converted from scope response.");
                                return SR_ERR;
                        }
                } else {
-                       if (sr_atof_ascii(samplePointsString, &fvalue) != SR_OK || fvalue == 0.0) {
+                       if (sr_atof_ascii(sample_points_string, &fvalue) != SR_OK || fvalue == 0.0) {
                                sr_dbg("Invalid float converted from scope response.");
                                return SR_ERR;
                        }
                }
-               samplerateScope = fvalue * 100000;
+               samplerate_scope = fvalue * 100000;
        } else {
-               samplePointsString[strlen(samplePointsString) - 4] = '\0';
-               if (sr_atof_ascii(samplePointsString, &fvalue) != SR_OK || fvalue == 0.0) {
+               sample_points_string[strlen(sample_points_string) - 4] = '\0';
+               if (sr_atof_ascii(sample_points_string, &fvalue) != SR_OK || fvalue == 0.0) {
                        sr_dbg("Invalid float converted from scope response.");
                        return SR_ERR;
                }
-               samplerateScope = fvalue * 1000;
+               samplerate_scope = fvalue * 1000;
        }
        /* Get the timebase. */
        if (sr_scpi_get_float(sdi->conn, ":TDIV?", &devc->timebase) != SR_OK)
                return SR_ERR;
        sr_dbg("Current timebase: %g.", devc->timebase);
-       devc->sampleRate = samplerateScope / (devc->timebase * devc->model->series->num_horizontal_divs);
+       devc->samplerate = samplerate_scope / (devc->timebase * devc->model->series->num_horizontal_divs);
 
        return SR_OK;
 }