FMC: add needed headers

This set of headers comes from commit ab23167f (current master of the
project on ohwr.org). They define the basic data structures for FMC
and its SDB support.

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>
Acked-by: Juan David Gonzalez Cobas <dcobas@cern.ch>
Acked-by: Emilio G. Cota <cota@braap.org>
Acked-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 135 insertions, 0 deletions

diff --git a/include/linux/ipmi-fru.h b/include/linux/ipmi-fru.h
new file mode 100644
index 000000000000..4d3a76380e32
--- /dev/null
+++ b/include/linux/ipmi-fru.h
@@ -0,0 +1,135 @@
+/*
+ * 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.
+ */
+#ifndef __LINUX_IPMI_FRU_H__
+#define __LINUX_IPMI_FRU_H__
+#ifdef __KERNEL__
+#  include <linux/types.h>
+#  include <linux/string.h>
+#else
+#  include <stdint.h>
+#  include <string.h>
+#endif
+
+/*
+ * These structures match the unaligned crap we have in FRU1011.pdf
+ * (http://download.intel.com/design/servers/ipmi/FRU1011.pdf)
+ */
+
+/* chapter 8, page 5 */
+struct fru_common_header {
+        uint8_t format;                 /* 0x01 */
+        uint8_t internal_use_off;       /* multiple of 8 bytes */
+        uint8_t chassis_info_off;       /* multiple of 8 bytes */
+        uint8_t board_area_off;         /* multiple of 8 bytes */
+        uint8_t product_area_off;       /* multiple of 8 bytes */
+        uint8_t multirecord_off;        /* multiple of 8 bytes */
+        uint8_t pad;                    /* must be 0 */
+        uint8_t checksum;               /* sum modulo 256 must be 0 */
+};
+
+/* chapter 9, page 5 -- internal_use: not used by us */
+
+/* chapter 10, page 6 -- chassis info: not used by us */
+
+/* chapter 13, page 9 -- used by board_info_area below */
+struct fru_type_length {
+        uint8_t type_length;
+        uint8_t data[0];
+};
+
+/* chapter 11, page 7 */
+struct fru_board_info_area {
+        uint8_t format;                 /* 0x01 */
+        uint8_t area_len;               /* multiple of 8 bytes */
+        uint8_t language;               /* I hope it's 0 */
+        uint8_t mfg_date[3];            /* LSB, minutes since 1996-01-01 */
+        struct fru_type_length tl[0];   /* type-length stuff follows */
+
+        /*
+         * the TL there are in order:
+         * Board Manufacturer
+         * Board Product Name
+         * Board Serial Number
+         * Board Part Number
+         * FRU File ID (may be null)
+         * more manufacturer-specific stuff
+         * 0xc1 as a terminator
+         * 0x00 pad to a multiple of 8 bytes - 1
+         * checksum (sum of all stuff module 256 must be zero)
+         */
+};
+
+enum fru_type {
+        FRU_TYPE_BINARY         = 0x00,
+        FRU_TYPE_BCDPLUS        = 0x40,
+        FRU_TYPE_ASCII6         = 0x80,
+        FRU_TYPE_ASCII          = 0xc0, /* not ascii: depends on language */
+};
+
+/*
+ * some helpers
+ */
+static inline struct fru_board_info_area *fru_get_board_area(
+        const struct fru_common_header *header)
+{
+        /* we know for sure that the header is 8 bytes in size */
+        return (struct fru_board_info_area *)(header + header->board_area_off);
+}
+
+static inline int fru_type(struct fru_type_length *tl)
+{
+        return tl->type_length & 0xc0;
+}
+
+static inline int fru_length(struct fru_type_length *tl)
+{
+        return (tl->type_length & 0x3f) + 1; /* len of whole record */
+}
+
+/* assume ascii-latin1 encoding */
+static inline int fru_strlen(struct fru_type_length *tl)
+{
+        return fru_length(tl) - 1;
+}
+
+static inline char *fru_strcpy(char *dest, struct fru_type_length *tl)
+{
+        int len = fru_strlen(tl);
+        memcpy(dest, tl->data, len);
+        dest[len] = '\0';
+        return dest;
+}
+
+static inline struct fru_type_length *fru_next_tl(struct fru_type_length *tl)
+{
+        return tl + fru_length(tl);
+}
+
+static inline int fru_is_eof(struct fru_type_length *tl)
+{
+        return tl->type_length == 0xc1;
+}
+
+/*
+ * External functions defined in fru-parse.c.
+ */
+extern int fru_header_cksum_ok(struct fru_common_header *header);
+extern int fru_bia_cksum_ok(struct fru_board_info_area *bia);
+
+/* All these 4 return allocated strings by calling fru_alloc() */
+extern char *fru_get_board_manufacturer(struct fru_common_header *header);
+extern char *fru_get_product_name(struct fru_common_header *header);
+extern char *fru_get_serial_number(struct fru_common_header *header);
+extern char *fru_get_part_number(struct fru_common_header *header);
+
+/* This must be defined by the caller of the above functions */
+extern void *fru_alloc(size_t size);
+
+#endif /* __LINUX_IMPI_FRU_H__ */