mpm: Add EEPROM utilities for N310

Actually-written-by: Moritz Fischer <moritz.fischer@ettus.com>

1 files changed, 47 insertions, 0 deletions

diff --git a/mpm/tools/fan-limits.c b/mpm/tools/fan-limits.c
new file mode 100644
index 000000000..4000d5832
--- /dev/null
+++ b/mpm/tools/fan-limits.c
@@ -0,0 +1,47 @@
+//
+// Copyright 2017 Ettus Research, a National Instruments Company
+//
+// SPDX-License-Identifier: GPL-3.0
+//
+
+#include "eeprom.h"
+#include <stdio.h>
+#include <stdlib.h>
+
+void usage(char *argv[])
+{
+	printf("-- Usage -- \n");
+	printf("%s fan0_min fan0_max fan1_min fan1_max\n\n", argv[0]);
+	printf("Example:\n");
+	printf("$ %s 3800 13000 3800 1300\n", argv[0]);
+}
+
+int main(int argc, char *argv[])
+{
+	struct usrp_sulfur_eeprom *ep;
+	uint8_t fan0_max, fan0_min, fan1_max, fan1_min;
+	uint32_t new_flags = 0;
+
+	if (argc != 5) {
+		usage(argv);
+		return EXIT_FAILURE;
+	}
+
+	fan0_min = atoi(argv[1]) / 100;
+	fan0_max = atoi(argv[2]) / 100;
+	fan1_min = atoi(argv[3]) / 100;
+	fan1_max = atoi(argv[4]) / 100;
+
+	printf("Writing: %d/%d/%d/%d\n", fan0_min, fan0_max, fan1_min, fan1_max);
+
+	ep = usrp_sulfur_eeprom_from_file(NVMEM_PATH_MB);
+	ep->mcu_flags[0] = 0;
+	ep->mcu_flags[1] = htonl(fan1_max << 24 | fan1_min << 16 | fan0_max << 8 | fan0_min);
+	usrp_sulfur_eeprom_recrc(ep);
+	usrp_sulfur_eeprom_to_i2c(ep, "/dev/i2c-2");
+
+
+	free(ep);
+
+	return 0;
+}