staging: comedi: move out of staging directory

The comedi code came into the kernel back in 2008, but traces its
lifetime to much much earlier.  It's been polished and buffed and
there's really nothing preventing it from being part of the "real"
portion of the kernel.

So move it to drivers/comedi/ as it belongs there.

Many thanks to the hundreds of developers who did the work to make this
happen.

Cc: Ian Abbott <abbotti@mev.co.uk>
Cc: H Hartley Sweeten <hsweeten@visionengravers.com>
Link: https://lore.kernel.org/r/YHauop4u3sP6lz8j@kroah.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 159 insertions, 0 deletions

diff --git a/drivers/comedi/drivers/ni_routing/tools/convert_c_to_py.c b/drivers/comedi/drivers/ni_routing/tools/convert_c_to_py.c
new file mode 100644
index 000000000000..dedb6f2fc678
--- /dev/null
+++ b/drivers/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;
+}