tools: add a simple vme access tool

2e8a0749 · Juan David González Cobas · 84722c3c · 2e8a0749 · 2e8a0749
Commit 2e8a0749 authored Nov 26, 2012 by Juan David González Cobas
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Makefile tools/Makefile +9 -0

vme.c tools/vme.c +76 -0

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--- a/tools/Makefile
+++ b/tools/Makefile
+CFLAGS += -I /acc/src/dsc/drivers/coht/vmebridge/include/ 
+LDFLAGS += -L /acc/local/L865/lib 
+LDLIBS += -lvmebus
+
+all: vme
+vme: vme.o
+
+clean:
+	rm -f *.o vme
--- a/tools/vme.c
+++ b/tools/vme.c
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <unistd.h>
+#include <arpa/inet.h>
+#include <libvmebus.h>
+
+static char usage_string[] =
+	"usage: %s [-v vme_address] "
+	"[-d data_width] [-a address_modifier] [-n word_count]\n";
+
+void usage(char *prog)
+{
+	fprintf(stderr, usage_string, prog);
+	exit(1);
+}
+int main(int argc, char *argv[])
+{
+
+	struct vme_mapping map;
+	struct vme_mapping *mapp = &map;
+	volatile void *ptr;
+	unsigned long vmebase, am, data_width;
+	int i, count;
+	int c;
+
+	/* vme defaults */
+	count = 1;
+	am = VME_A32_USER_DATA_SCT;
+	data_width = VME_D32;
+
+	while ((c = getopt(argc, argv, "v:d:a:n:")) != -1) {
+		switch (c) {
+		case 'v':
+			vmebase = strtoul(optarg, NULL, 0);
+			break;
+		case 'd':
+			data_width = strtoul(optarg, NULL, 0);
+			break;
+		case 'a':
+			am = VME_A32_USER_DATA_SCT;
+			break;
+		case 'n':
+			count = strtoul(optarg, NULL, 0);
+			break;
+		case '?':
+		case 'h':
+			usage(argv[0]);
+			break;
+		default:
+			break;
+		}
+	}
+
+	memset(mapp, 0, sizeof(*mapp));
+
+	mapp->am = 		VME_A32_USER_DATA_SCT;
+	mapp->data_width = 	VME_D32;
+	mapp->sizel = 		0x80000;
+	mapp->vme_addrl =	vmebase;
+
+	if ((ptr = vme_map(mapp, 1)) == (void *)-1) {
+		printf("could not map at 0x%08x\n", vmebase);
+		exit(1);
+	}
+
+	printf("vme 0x%08x kernel 0x%08x user 0x%08x\n", 
+			vmebase, mapp->kernel_va, mapp->user_va);
+	for (i = 0; i < count; i++, ptr += 4) {
+		printf("%08x: %08x\n", ptr, ntohl(*(uint32_t *)ptr));
+	}
+
+	vme_unmap(mapp, 1);
+	return 0;
+}