Author: kevlo
Date: Sat Nov 19 07:28:00 2016
New Revision: 308825
URL: https://svnweb.freebsd.org/changeset/base/308825

Log:
  For RTL8812AU:
  - The Tx power (diff) values should be signed
  - Fix an off by one error when reading Tx power (diff) values
  
  Reviewed by:  avos, adrian
  Differential Revision:        https://reviews.freebsd.org/D8571

Modified:
  head/sys/dev/rtwn/rtl8812a/r12a_rom.c
  head/sys/dev/rtwn/rtl8812a/r12a_var.h

Modified: head/sys/dev/rtwn/rtl8812a/r12a_rom.c
==============================================================================
--- head/sys/dev/rtwn/rtl8812a/r12a_rom.c       Sat Nov 19 02:09:58 2016        
(r308824)
+++ head/sys/dev/rtwn/rtl8812a/r12a_rom.c       Sat Nov 19 07:28:00 2016        
(r308825)
@@ -65,7 +65,7 @@ r12a_parse_rom_common(struct rtwn_softc 
 {
        struct r12a_softc *rs = sc->sc_priv;
        struct r12a_rom *rom = (struct r12a_rom *)buf;
-       int i, j;
+       int i, j, k;
 
        sc->thermal_meter = rom->thermal_meter;
        rs->crystalcap = RTWN_GET_ROM_VAR(rom->crystalcap,
@@ -99,15 +99,15 @@ r12a_parse_rom_common(struct rtwn_softc 
                    MS(pwr_diff_2g->ht20_ofdm, HIGH_PART));
                rs->bw40_tx_pwr_diff_2g[i][0] = 0;
 
-               for (j = 1; j < nitems(pwr_diff_2g->diff123); j++) {
+               for (j = 1, k = 0; k < nitems(pwr_diff_2g->diff123); j++, k++) {
                        rs->cck_tx_pwr_diff_2g[i][j] = RTWN_SIGN4TO8(
-                           MS(pwr_diff_2g->diff123[j].ofdm_cck, LOW_PART));
+                           MS(pwr_diff_2g->diff123[k].ofdm_cck, LOW_PART));
                        rs->ofdm_tx_pwr_diff_2g[i][j] = RTWN_SIGN4TO8(
-                           MS(pwr_diff_2g->diff123[j].ofdm_cck, HIGH_PART));
+                           MS(pwr_diff_2g->diff123[k].ofdm_cck, HIGH_PART));
                        rs->bw20_tx_pwr_diff_2g[i][j] = RTWN_SIGN4TO8(
-                           MS(pwr_diff_2g->diff123[j].ht40_ht20, LOW_PART));
+                           MS(pwr_diff_2g->diff123[k].ht40_ht20, LOW_PART));
                        rs->bw40_tx_pwr_diff_2g[i][j] = RTWN_SIGN4TO8(
-                           MS(pwr_diff_2g->diff123[j].ht40_ht20, HIGH_PART));
+                           MS(pwr_diff_2g->diff123[k].ht40_ht20, HIGH_PART));
                }
 
                for (j = 0; j < R12A_GROUP_5G; j++) {
@@ -128,11 +128,12 @@ r12a_parse_rom_common(struct rtwn_softc 
                rs->bw20_tx_pwr_diff_5g[i][0] = RTWN_SIGN4TO8(
                    MS(pwr_diff_5g->ht20_ofdm, HIGH_PART));
                rs->bw40_tx_pwr_diff_5g[i][0] = 0;
-               for (j = 1; j < nitems(pwr_diff_5g->ht40_ht20); j++) {
+               for (j = 1, k = 0; k < nitems(pwr_diff_5g->ht40_ht20);
+                   j++, k++) {
                        rs->bw20_tx_pwr_diff_5g[i][j] = RTWN_SIGN4TO8(
-                           MS(pwr_diff_5g->ht40_ht20[j], LOW_PART));
+                           MS(pwr_diff_5g->ht40_ht20[k], LOW_PART));
                        rs->bw40_tx_pwr_diff_5g[i][j] = RTWN_SIGN4TO8(
-                           MS(pwr_diff_5g->ht40_ht20[j], HIGH_PART));
+                           MS(pwr_diff_5g->ht40_ht20[k], HIGH_PART));
                }
 
                for (j = 0; j < nitems(pwr_diff_5g->ht80_ht160); j++) {

Modified: head/sys/dev/rtwn/rtl8812a/r12a_var.h
==============================================================================
--- head/sys/dev/rtwn/rtl8812a/r12a_var.h       Sat Nov 19 02:09:58 2016        
(r308824)
+++ head/sys/dev/rtwn/rtl8812a/r12a_var.h       Sat Nov 19 07:28:00 2016        
(r308825)
@@ -64,16 +64,16 @@ struct r12a_softc {
        uint8_t ht40_tx_pwr_2g[R12A_MAX_RF_PATH][R12A_GROUP_2G];
        uint8_t ht40_tx_pwr_5g[R12A_MAX_RF_PATH][R12A_GROUP_5G];
 
-       uint8_t cck_tx_pwr_diff_2g[R12A_MAX_RF_PATH][R12A_MAX_TX_COUNT];
-       uint8_t ofdm_tx_pwr_diff_2g[R12A_MAX_RF_PATH][R12A_MAX_TX_COUNT];
-       uint8_t bw20_tx_pwr_diff_2g[R12A_MAX_RF_PATH][R12A_MAX_TX_COUNT];
-       uint8_t bw40_tx_pwr_diff_2g[R12A_MAX_RF_PATH][R12A_MAX_TX_COUNT];
-
-       uint8_t ofdm_tx_pwr_diff_5g[R12A_MAX_RF_PATH][R12A_MAX_TX_COUNT];
-       uint8_t bw20_tx_pwr_diff_5g[R12A_MAX_RF_PATH][R12A_MAX_TX_COUNT];
-       uint8_t bw40_tx_pwr_diff_5g[R12A_MAX_RF_PATH][R12A_MAX_TX_COUNT];
-       uint8_t bw80_tx_pwr_diff_5g[R12A_MAX_RF_PATH][R12A_MAX_TX_COUNT];
-       uint8_t bw160_tx_pwr_diff_5g[R12A_MAX_RF_PATH][R12A_MAX_TX_COUNT];
+       int8_t  cck_tx_pwr_diff_2g[R12A_MAX_RF_PATH][R12A_MAX_TX_COUNT];
+       int8_t  ofdm_tx_pwr_diff_2g[R12A_MAX_RF_PATH][R12A_MAX_TX_COUNT];
+       int8_t  bw20_tx_pwr_diff_2g[R12A_MAX_RF_PATH][R12A_MAX_TX_COUNT];
+       int8_t  bw40_tx_pwr_diff_2g[R12A_MAX_RF_PATH][R12A_MAX_TX_COUNT];
+
+       int8_t  ofdm_tx_pwr_diff_5g[R12A_MAX_RF_PATH][R12A_MAX_TX_COUNT];
+       int8_t  bw20_tx_pwr_diff_5g[R12A_MAX_RF_PATH][R12A_MAX_TX_COUNT];
+       int8_t  bw40_tx_pwr_diff_5g[R12A_MAX_RF_PATH][R12A_MAX_TX_COUNT];
+       int8_t  bw80_tx_pwr_diff_5g[R12A_MAX_RF_PATH][R12A_MAX_TX_COUNT];
+       int8_t  bw160_tx_pwr_diff_5g[R12A_MAX_RF_PATH][R12A_MAX_TX_COUNT];
 
        int             sc_ant;
 
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