1 files changed, 159 insertions, 0 deletions
diff --git a/drivers/staging/comedi/drivers/ni_routing/tools/convert_c_to_py.c b/drivers/staging/comedi/drivers/ni_routing/tools/convert_c_to_py.c
new file mode 100644
index 000000000000..dedb6f2fc678
--- /dev/null
+++ b/drivers/staging/comedi/drivers/ni_routing/tools/convert_c_to_py.c
@@ -0,0 +1,159 @@
+// SPDX-License-Identifier: GPL-2.0+
+/* vim: set ts=8 sw=8 noet tw=80 nowrap: */
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <errno.h>
+#include <stdlib.h>
+
+typedef uint8_t u8;
+typedef uint16_t u16;
+typedef int8_t  s8;
+#define __user
+#define BIT(x)  (1UL << (x))
+
+#define NI_ROUTE_VALUE_EXTERNAL_CONVERSION 1
+
+#include "../ni_route_values.c"
+#include "../ni_device_routes.c"
+#include "all_cfiles.c"
+
+#include <stdio.h>
+
+#define RVij(rv, src, dest)	((rv)->register_values[(dest)][(src)])
+
+/*
+ * write out
+ * {
+ *   "family" : "<family-name>",
+ *   "register_values": {
+ *      <destination0>:[src0, src1, ...],
+ *      <destination0>:[src0, src1, ...],
+ *      ...
+ *   }
+ * }
+ */
+void family_write(const struct family_route_values *rv, FILE *fp)
+{
+	fprintf(fp,
+		"  \"%s\" : {\n"
+		"    # dest -> {src0:val0, src1:val1, ...}\n"
+		, rv->family);
+	for (unsigned int dest = NI_NAMES_BASE;
+	     dest < (NI_NAMES_BASE + NI_NUM_NAMES);
+	     ++dest) {
+		unsigned int src = NI_NAMES_BASE;
+
+		for (; src < (NI_NAMES_BASE + NI_NUM_NAMES) &&
+		     RVij(rv, B(src), B(dest)) == 0; ++src)
+			;
+
+		if (src >= (NI_NAMES_BASE + NI_NUM_NAMES))
+			continue; /* no data here */
+
+		fprintf(fp, "    %u : {\n", dest);
+		for (src = NI_NAMES_BASE; src < (NI_NAMES_BASE + NI_NUM_NAMES);
+		     ++src) {
+			register_type r = RVij(rv, B(src), B(dest));
+			const char *M;
+
+			if (r == 0) {
+				continue;
+			} else if (MARKED_V(r)) {
+				M = "V";
+			} else if (MARKED_I(r)) {
+				M = "I";
+			} else if (MARKED_U(r)) {
+				M = "U";
+			} else {
+				fprintf(stderr,
+					"Invalid register marking %s[%u][%u] = %u\n",
+					rv->family, dest, src, r);
+				exit(1);
+			}
+
+			fprintf(fp, "      %u : \"%s(%u)\",\n",
+				src, M, UNMARK(r));
+		}
+		fprintf(fp, "    },\n");
+	}
+	fprintf(fp, "  },\n\n");
+}
+
+bool is_valid_ni_sig(unsigned int sig)
+{
+	return (sig >= NI_NAMES_BASE) && (sig < (NI_NAMES_BASE + NI_NUM_NAMES));
+}
+
+/*
+ * write out
+ * {
+ *   "family" : "<family-name>",
+ *   "register_values": {
+ *      <destination0>:[src0, src1, ...],
+ *      <destination0>:[src0, src1, ...],
+ *      ...
+ *   }
+ * }
+ */
+void device_write(const struct ni_device_routes *dR, FILE *fp)
+{
+	fprintf(fp,
+		"  \"%s\" : {\n"
+		"    # dest -> [src0, src1, ...]\n"
+		, dR->device);
+
+	unsigned int i = 0;
+
+	while (dR->routes[i].dest != 0) {
+		if (!is_valid_ni_sig(dR->routes[i].dest)) {
+			fprintf(stderr,
+				"Invalid NI signal value [%u] for destination %s.[%u]\n",
+				dR->routes[i].dest, dR->device, i);
+			exit(1);
+		}
+
+		fprintf(fp, "    %u : [", dR->routes[i].dest);
+
+		unsigned int j = 0;
+
+		while (dR->routes[i].src[j] != 0) {
+			if (!is_valid_ni_sig(dR->routes[i].src[j])) {
+				fprintf(stderr,
+					"Invalid NI signal value [%u] for source %s.[%u].[%u]\n",
+					dR->routes[i].src[j], dR->device, i, j);
+				exit(1);
+			}
+
+			fprintf(fp, "%u,", dR->routes[i].src[j]);
+
+			++j;
+		}
+		fprintf(fp, "],\n");
+
+		++i;
+	}
+	fprintf(fp, "  },\n\n");
+}
+
+int main(void)
+{
+	FILE *fp = fopen("ni_values.py", "w");
+
+	/* write route register values */
+	fprintf(fp, "ni_route_values = {\n");
+	for (int i = 0; ni_all_route_values[i]; ++i)
+		family_write(ni_all_route_values[i], fp);
+	fprintf(fp, "}\n\n");
+
+	/* write valid device routes */
+	fprintf(fp, "ni_device_routes = {\n");
+	for (int i = 0; ni_device_routes_list[i]; ++i)
+		device_write(ni_device_routes_list[i], fp);
+	fprintf(fp, "}\n");
+
+	/* finish; close file */
+	fclose(fp);
+	return 0;
+}