Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / fmc / fru-parse.c

diff --git a/kernel/drivers/fmc/fru-parse.c b/kernel/drivers/fmc/fru-parse.c
new file mode 100644 (file)
index 0000000..cb46263
--- /dev/null
+++ b/kernel/drivers/fmc/fru-parse.c
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2012 CERN (www.cern.ch)
+ * Author: Alessandro Rubini <rubini@gnudd.com>
+ *
+ * Released according to the GNU GPL, version 2 or any later version.
+ *
+ * This work is part of the White Rabbit project, a research effort led
+ * by CERN, the European Institute for Nuclear Research.
+ */
+#include <linux/ipmi-fru.h>
+
+/* Some internal helpers */
+static struct fru_type_length *
+__fru_get_board_tl(struct fru_common_header *header, int nr)
+{
+       struct fru_board_info_area *bia;
+       struct fru_type_length *tl;
+
+       bia = fru_get_board_area(header);
+       tl = bia->tl;
+       while (nr > 0 && !fru_is_eof(tl)) {
+               tl = fru_next_tl(tl);
+               nr--;
+       }
+       if (fru_is_eof(tl))
+               return NULL;
+       return tl;
+}
+
+static char *__fru_alloc_get_tl(struct fru_common_header *header, int nr)
+{
+       struct fru_type_length *tl;
+       char *res;
+       int len;
+
+       tl = __fru_get_board_tl(header, nr);
+       if (!tl)
+               return NULL;
+       len = fru_strlen(tl);
+       res = fru_alloc(fru_strlen(tl) + 1);
+       if (!res)
+               return NULL;
+       return fru_strcpy(res, tl);
+}
+
+/* Public checksum verifiers */
+int fru_header_cksum_ok(struct fru_common_header *header)
+{
+       uint8_t *ptr = (void *)header;
+       int i, sum;
+
+       for (i = sum = 0; i < sizeof(*header); i++)
+               sum += ptr[i];
+       return (sum & 0xff) == 0;
+}
+int fru_bia_cksum_ok(struct fru_board_info_area *bia)
+{
+       uint8_t *ptr = (void *)bia;
+       int i, sum;
+
+       for (i = sum = 0; i < 8 * bia->area_len; i++)
+               sum += ptr[i];
+       return (sum & 0xff) == 0;
+}
+
+/* Get various stuff, trivial */
+char *fru_get_board_manufacturer(struct fru_common_header *header)
+{
+       return __fru_alloc_get_tl(header, 0);
+}
+char *fru_get_product_name(struct fru_common_header *header)
+{
+       return __fru_alloc_get_tl(header, 1);
+}
+char *fru_get_serial_number(struct fru_common_header *header)
+{
+       return __fru_alloc_get_tl(header, 2);
+}
+char *fru_get_part_number(struct fru_common_header *header)
+{
+       return __fru_alloc_get_tl(header, 3);
+}