brcmutil: add helper function to format board revision

The board revision that is available in hardware can be translated
so it matches the labelling on the board. This is accomplished by
this helper function.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmutil/utils.c b/drivers/net/wireless/brcm80211/brcmutil/utils.c
index 0f7e1c7..906e89d 100644 (file)
--- a/drivers/net/wireless/brcm80211/brcmutil/utils.c
+++ b/drivers/net/wireless/brcm80211/brcmutil/utils.c
@@ -261,6 +261,21 @@ struct sk_buff *brcmu_pktq_mdeq(struct pktq *pq, uint prec_bmp,
 }
 EXPORT_SYMBOL(brcmu_pktq_mdeq);
 
+/* Produce a human-readable string for boardrev */
+char *brcmu_boardrev_str(u32 brev, char *buf)
+{
+       char c;
+
+       if (brev < 0x100) {
+               snprintf(buf, 8, "%d.%d", (brev & 0xf0) >> 4, brev & 0xf);
+       } else {
+               c = (brev & 0xf000) == 0x1000 ? 'P' : 'A';
+               snprintf(buf, 8, "%c%03x", c, brev & 0xfff);
+       }
+       return buf;
+}
+EXPORT_SYMBOL(brcmu_boardrev_str);
+
 #if defined(DEBUG)
 /* pretty hex print a pkt buffer chain */
 void brcmu_prpkt(const char *msg, struct sk_buff *p0)
@@ -292,4 +307,5 @@ void brcmu_dbg_hex_dump(const void *data, size_t size, const char *fmt, ...)
        print_hex_dump_bytes("", DUMP_PREFIX_OFFSET, data, size);
 }
 EXPORT_SYMBOL(brcmu_dbg_hex_dump);
+
 #endif                         /* defined(DEBUG) */

diff --git a/drivers/net/wireless/brcm80211/include/brcmu_utils.h b/drivers/net/wireless/brcm80211/include/brcmu_utils.h
index 8ba445b..a043e29 100644 (file)
--- a/drivers/net/wireless/brcm80211/include/brcmu_utils.h
+++ b/drivers/net/wireless/brcm80211/include/brcmu_utils.h
@@ -218,4 +218,6 @@ void brcmu_dbg_hex_dump(const void *data, size_t size, const char *fmt, ...)
 }
 #endif
 
+char *brcmu_boardrev_str(u32 brev, char *buf);
+
 #endif                         /* _BRCMU_UTILS_H_ */