X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/rigol/blobdiff_plain/3f7445f165d714de36f2f42af08d3461f49ef75f..8e60ee60c04ec12ceac8f3cbc04cebe7a9c1efd8:/scope.c

diff --git a/scope.c b/scope.c
index 43439ff..09c9b8d 100644
--- a/scope.c
+++ b/scope.c
@@ -8,6 +8,17 @@
 #include "scope.h"
 #include "usbtmc.h"
 
+#define DATASIZE 10240
+
+#define COPY_SCOPE_STRING(sc, cmd, dst) { \
+						char *buf; \
+						buf = scope_get_string(sc, cmd, sizeof(dst)); \
+						if (buf) { \
+							strcpy(dst, buf); \
+							free(buf); \
+						}\
+					}
+
 /* Just USB for now... */
 int sendscpi(struct scope* sc, char* cmd, unsigned char *resp, int resplen)
 {
@@ -48,7 +59,7 @@ struct scope* initscope(void)
 	}
 
 	claimscope(sc);
-	sendscpi(sc, "*IDN?", (unsigned char*)sc->idn, sizeof(sc->idn)); 
+	COPY_SCOPE_STRING(sc, "*IDN?", sc->idn);
 	releasescope(sc);
 
 	printf("Scope found (%s)\n", sc->idn);
@@ -61,15 +72,6 @@ char *scope_idn(struct scope *sc)
 	return sc->idn;
 }
 
-#define COPY_SCOPE_STRING(sc, cmd, dst) { \
-						char *buf; \
-						buf = scope_get_string(sc, cmd, sizeof(dst)); \
-						if (buf) { \
-							strcpy(dst, buf); \
-							free(buf); \
-						}\
-					}
-
 char *scope_get_string(struct scope *sc, char *cmd, int maxlen)
 {
 	unsigned char *buf;
@@ -147,6 +149,22 @@ double scope_get_double(struct scope *sc, char*cmd)
 	return ret;
 }
 
+char *scope_get_data(struct scope *sc, char *source, int *len)
+{
+	char *data = NULL;
+	char cmd[128];
+
+	if ((data = malloc(DATASIZE)) == NULL) {
+		perror("malloc");
+		return NULL;
+	}
+
+	snprintf(cmd, sizeof(cmd), ":WAV:DATA? %s", source);
+	*len = sendscpi(sc, cmd, (unsigned char*)data, DATASIZE);
+
+	return data;
+}
+
 void update_scope_measurements(struct scope *sc)
 {
 	sc->status.measure.ch1.vpp = scope_get_double(sc, ":MEAS:VPP? CHAN1");