brcm80211: moved power conversion functions

[mv-sheeva.git] / drivers / net / wireless / brcm80211 / brcmutil / utils.c

diff --git a/drivers/net/wireless/brcm80211/brcmutil/utils.c b/drivers/net/wireless/brcm80211/brcmutil/utils.c
index 0bb104f784fe7a54a7882b45ad9a336cfce35543..1851f93c9355ee018f85e3f30950a58ebc2f0c3c 100644 (file)
--- a/drivers/net/wireless/brcm80211/brcmutil/utils.c
+++ b/drivers/net/wireless/brcm80211/brcmutil/utils.c
@@ -498,89 +498,3 @@ uint brcmu_mkiovar(char *name, char *data, uint datalen, char *buf, uint buflen)
 }
 EXPORT_SYMBOL(brcmu_mkiovar);
 
-/* Quarter dBm units to mW
- * Table starts at QDBM_OFFSET, so the first entry is mW for qdBm=153
- * Table is offset so the last entry is largest mW value that fits in
- * a u16.
- */
-
-#define QDBM_OFFSET 153                /* Offset for first entry */
-#define QDBM_TABLE_LEN 40      /* Table size */
-
-/* Smallest mW value that will round up to the first table entry, QDBM_OFFSET.
- * Value is ( mW(QDBM_OFFSET - 1) + mW(QDBM_OFFSET) ) / 2
- */
-#define QDBM_TABLE_LOW_BOUND 6493      /* Low bound */
-
-/* Largest mW value that will round down to the last table entry,
- * QDBM_OFFSET + QDBM_TABLE_LEN-1.
- * Value is ( mW(QDBM_OFFSET + QDBM_TABLE_LEN - 1) +
- * mW(QDBM_OFFSET + QDBM_TABLE_LEN) ) / 2.
- */
-#define QDBM_TABLE_HIGH_BOUND 64938    /* High bound */
-
-static const u16 nqdBm_to_mW_map[QDBM_TABLE_LEN] = {
-/* qdBm:       +0      +1      +2      +3      +4      +5      +6      +7 */
-/* 153: */ 6683, 7079, 7499, 7943, 8414, 8913, 9441, 10000,
-/* 161: */ 10593, 11220, 11885, 12589, 13335, 14125, 14962, 15849,
-/* 169: */ 16788, 17783, 18836, 19953, 21135, 22387, 23714, 25119,
-/* 177: */ 26607, 28184, 29854, 31623, 33497, 35481, 37584, 39811,
-/* 185: */ 42170, 44668, 47315, 50119, 53088, 56234, 59566, 63096
-};
-
-u16 brcmu_qdbm_to_mw(u8 qdbm)
-{
-       uint factor = 1;
-       int idx = qdbm - QDBM_OFFSET;
-
-       if (idx >= QDBM_TABLE_LEN)
-               /* clamp to max u16 mW value */
-               return 0xFFFF;
-
-       /* scale the qdBm index up to the range of the table 0-40
-        * where an offset of 40 qdBm equals a factor of 10 mW.
-        */
-       while (idx < 0) {
-               idx += 40;
-               factor *= 10;
-       }
-
-       /* return the mW value scaled down to the correct factor of 10,
-        * adding in factor/2 to get proper rounding.
-        */
-       return (nqdBm_to_mW_map[idx] + factor / 2) / factor;
-}
-EXPORT_SYMBOL(brcmu_qdbm_to_mw);
-
-u8 brcmu_mw_to_qdbm(u16 mw)
-{
-       u8 qdbm;
-       int offset;
-       uint mw_uint = mw;
-       uint boundary;
-
-       /* handle boundary case */
-       if (mw_uint <= 1)
-               return 0;
-
-       offset = QDBM_OFFSET;
-
-       /* move mw into the range of the table */
-       while (mw_uint < QDBM_TABLE_LOW_BOUND) {
-               mw_uint *= 10;
-               offset -= 40;
-       }
-
-       for (qdbm = 0; qdbm < QDBM_TABLE_LEN - 1; qdbm++) {
-               boundary = nqdBm_to_mW_map[qdbm] + (nqdBm_to_mW_map[qdbm + 1] -
-                                                   nqdBm_to_mW_map[qdbm]) / 2;
-               if (mw_uint < boundary)
-                       break;
-       }
-
-       qdbm += (u8) offset;
-
-       return qdbm;
-}
-EXPORT_SYMBOL(brcmu_mw_to_qdbm);
-