Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...
[linux-2.6.git] / drivers / net / wireless / ath / ath9k / ar9003_phy.c
index 1bc33f5..1baca8e 100644 (file)
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2010 Atheros Communications Inc.
+ * Copyright (c) 2010-2011 Atheros Communications Inc.
  *
  * Permission to use, copy, modify, and/or distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -75,7 +75,19 @@ static int ar9003_hw_set_channel(struct ath_hw *ah, struct ath9k_channel *chan)
        freq = centers.synth_center;
 
        if (freq < 4800) {     /* 2 GHz, fractional mode */
-               if (AR_SREV_9485(ah)) {
+               if (AR_SREV_9330(ah)) {
+                       u32 chan_frac;
+                       u32 div;
+
+                       if (ah->is_clk_25mhz)
+                               div = 75;
+                       else
+                               div = 120;
+
+                       channelSel = (freq * 4) / div;
+                       chan_frac = (((freq * 4) % div) * 0x20000) / div;
+                       channelSel = (channelSel << 17) | chan_frac;
+               } else if (AR_SREV_9485(ah)) {
                        u32 chan_frac;
 
                        /*
@@ -86,14 +98,31 @@ static int ar9003_hw_set_channel(struct ath_hw *ah, struct ath9k_channel *chan)
                        channelSel = (freq * 4) / 120;
                        chan_frac = (((freq * 4) % 120) * 0x20000) / 120;
                        channelSel = (channelSel << 17) | chan_frac;
+               } else if (AR_SREV_9340(ah)) {
+                       if (ah->is_clk_25mhz) {
+                               u32 chan_frac;
+
+                               channelSel = (freq * 2) / 75;
+                               chan_frac = (((freq * 2) % 75) * 0x20000) / 75;
+                               channelSel = (channelSel << 17) | chan_frac;
+                       } else
+                               channelSel = CHANSEL_2G(freq) >> 1;
                } else
                        channelSel = CHANSEL_2G(freq);
                /* Set to 2G mode */
                bMode = 1;
        } else {
-               channelSel = CHANSEL_5G(freq);
-               /* Doubler is ON, so, divide channelSel by 2. */
-               channelSel >>= 1;
+               if (AR_SREV_9340(ah) && ah->is_clk_25mhz) {
+                       u32 chan_frac;
+
+                       channelSel = (freq * 2) / 75;
+                       chan_frac = (((freq * 2) % 75) * 0x20000) / 75;
+                       channelSel = (channelSel << 17) | chan_frac;
+               } else {
+                       channelSel = CHANSEL_5G(freq);
+                       /* Doubler is ON, so, divide channelSel by 2. */
+                       channelSel >>= 1;
+               }
                /* Set to 5G mode */
                bMode = 0;
        }
@@ -151,7 +180,7 @@ static void ar9003_hw_spur_mitigate_mrc_cck(struct ath_hw *ah,
         * is out-of-band and can be ignored.
         */
 
-       if (AR_SREV_9485(ah)) {
+       if (AR_SREV_9485(ah) || AR_SREV_9340(ah) || AR_SREV_9330(ah)) {
                spur_fbin_ptr = ar9003_get_spur_chan_ptr(ah,
                                                         IS_CHAN_2GHZ(chan));
                if (spur_fbin_ptr[0] == 0) /* No spur */
@@ -176,7 +205,7 @@ static void ar9003_hw_spur_mitigate_mrc_cck(struct ath_hw *ah,
 
        for (i = 0; i < max_spur_cnts; i++) {
                negative = 0;
-               if (AR_SREV_9485(ah))
+               if (AR_SREV_9485(ah) || AR_SREV_9340(ah) || AR_SREV_9330(ah))
                        cur_bb_spur = FBIN2FREQ(spur_fbin_ptr[i],
                                        IS_CHAN_2GHZ(chan)) - synth_freq;
                else
@@ -599,29 +628,25 @@ static int ar9003_hw_process_ini(struct ath_hw *ah,
        struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
        unsigned int regWrites = 0, i;
        struct ieee80211_channel *channel = chan->chan;
-       u32 modesIndex, freqIndex;
+       u32 modesIndex;
 
        switch (chan->chanmode) {
        case CHANNEL_A:
        case CHANNEL_A_HT20:
                modesIndex = 1;
-               freqIndex = 1;
                break;
        case CHANNEL_A_HT40PLUS:
        case CHANNEL_A_HT40MINUS:
                modesIndex = 2;
-               freqIndex = 1;
                break;
        case CHANNEL_G:
        case CHANNEL_G_HT20:
        case CHANNEL_B:
                modesIndex = 4;
-               freqIndex = 2;
                break;
        case CHANNEL_G_HT40PLUS:
        case CHANNEL_G_HT40MINUS:
                modesIndex = 3;
-               freqIndex = 2;
                break;
 
        default:
@@ -646,6 +671,12 @@ static int ar9003_hw_process_ini(struct ath_hw *ah,
                REG_WRITE_ARRAY(&ah->iniModesAdditional,
                                modesIndex, regWrites);
 
+       if (AR_SREV_9300(ah))
+               REG_WRITE_ARRAY(&ah->iniModesAdditional, 1, regWrites);
+
+       if (AR_SREV_9340(ah) && !ah->is_clk_25mhz)
+               REG_WRITE_ARRAY(&ah->iniModesAdditional_40M, 1, regWrites);
+
        ar9003_hw_override_ini(ah);
        ar9003_hw_set_channel_regs(ah, chan);
        ar9003_hw_set_chain_masks(ah, ah->rxchainmask, ah->txchainmask);
@@ -1058,7 +1089,10 @@ static void ar9003_hw_set_nf_limits(struct ath_hw *ah)
 {
        ah->nf_2g.max = AR_PHY_CCA_MAX_GOOD_VAL_9300_2GHZ;
        ah->nf_2g.min = AR_PHY_CCA_MIN_GOOD_VAL_9300_2GHZ;
-       ah->nf_2g.nominal = AR_PHY_CCA_NOM_VAL_9300_2GHZ;
+       if (AR_SREV_9330(ah))
+               ah->nf_2g.nominal = AR_PHY_CCA_NOM_VAL_9330_2GHZ;
+       else
+               ah->nf_2g.nominal = AR_PHY_CCA_NOM_VAL_9300_2GHZ;
        ah->nf_5g.max = AR_PHY_CCA_MAX_GOOD_VAL_9300_5GHZ;
        ah->nf_5g.min = AR_PHY_CCA_MIN_GOOD_VAL_9300_5GHZ;
        ah->nf_5g.nominal = AR_PHY_CCA_NOM_VAL_9300_5GHZ;
@@ -1168,9 +1202,61 @@ static void ar9003_hw_set_radar_conf(struct ath_hw *ah)
        conf->radar_inband = 8;
 }
 
+static void ar9003_hw_antdiv_comb_conf_get(struct ath_hw *ah,
+                                  struct ath_hw_antcomb_conf *antconf)
+{
+       u32 regval;
+
+       regval = REG_READ(ah, AR_PHY_MC_GAIN_CTRL);
+       antconf->main_lna_conf = (regval & AR_PHY_9485_ANT_DIV_MAIN_LNACONF) >>
+                                 AR_PHY_9485_ANT_DIV_MAIN_LNACONF_S;
+       antconf->alt_lna_conf = (regval & AR_PHY_9485_ANT_DIV_ALT_LNACONF) >>
+                                AR_PHY_9485_ANT_DIV_ALT_LNACONF_S;
+       antconf->fast_div_bias = (regval & AR_PHY_9485_ANT_FAST_DIV_BIAS) >>
+                                 AR_PHY_9485_ANT_FAST_DIV_BIAS_S;
+
+       if (AR_SREV_9330_11(ah)) {
+               antconf->lna1_lna2_delta = -9;
+               antconf->div_group = 1;
+       } else if (AR_SREV_9485(ah)) {
+               antconf->lna1_lna2_delta = -9;
+               antconf->div_group = 2;
+       } else {
+               antconf->lna1_lna2_delta = -3;
+               antconf->div_group = 0;
+       }
+}
+
+static void ar9003_hw_antdiv_comb_conf_set(struct ath_hw *ah,
+                                  struct ath_hw_antcomb_conf *antconf)
+{
+       u32 regval;
+
+       regval = REG_READ(ah, AR_PHY_MC_GAIN_CTRL);
+       regval &= ~(AR_PHY_9485_ANT_DIV_MAIN_LNACONF |
+                   AR_PHY_9485_ANT_DIV_ALT_LNACONF |
+                   AR_PHY_9485_ANT_FAST_DIV_BIAS |
+                   AR_PHY_9485_ANT_DIV_MAIN_GAINTB |
+                   AR_PHY_9485_ANT_DIV_ALT_GAINTB);
+       regval |= ((antconf->main_lna_conf <<
+                                       AR_PHY_9485_ANT_DIV_MAIN_LNACONF_S)
+                  & AR_PHY_9485_ANT_DIV_MAIN_LNACONF);
+       regval |= ((antconf->alt_lna_conf << AR_PHY_9485_ANT_DIV_ALT_LNACONF_S)
+                  & AR_PHY_9485_ANT_DIV_ALT_LNACONF);
+       regval |= ((antconf->fast_div_bias << AR_PHY_9485_ANT_FAST_DIV_BIAS_S)
+                  & AR_PHY_9485_ANT_FAST_DIV_BIAS);
+       regval |= ((antconf->main_gaintb << AR_PHY_9485_ANT_DIV_MAIN_GAINTB_S)
+                  & AR_PHY_9485_ANT_DIV_MAIN_GAINTB);
+       regval |= ((antconf->alt_gaintb << AR_PHY_9485_ANT_DIV_ALT_GAINTB_S)
+                  & AR_PHY_9485_ANT_DIV_ALT_GAINTB);
+
+       REG_WRITE(ah, AR_PHY_MC_GAIN_CTRL, regval);
+}
+
 void ar9003_hw_attach_phy_ops(struct ath_hw *ah)
 {
        struct ath_hw_private_ops *priv_ops = ath9k_hw_private_ops(ah);
+       struct ath_hw_ops *ops = ath9k_hw_ops(ah);
        static const u32 ar9300_cca_regs[6] = {
                AR_PHY_CCA_0,
                AR_PHY_CCA_1,
@@ -1197,6 +1283,9 @@ void ar9003_hw_attach_phy_ops(struct ath_hw *ah)
        priv_ops->ani_cache_ini_regs = ar9003_hw_ani_cache_ini_regs;
        priv_ops->set_radar_params = ar9003_hw_set_radar_params;
 
+       ops->antdiv_comb_conf_get = ar9003_hw_antdiv_comb_conf_get;
+       ops->antdiv_comb_conf_set = ar9003_hw_antdiv_comb_conf_set;
+
        ar9003_hw_set_nf_limits(ah);
        ar9003_hw_set_radar_conf(ah);
        memcpy(ah->nf_regs, ar9300_cca_regs, sizeof(ah->nf_regs));
@@ -1319,3 +1408,25 @@ void ar9003_hw_bb_watchdog_dbg_info(struct ath_hw *ah)
                "==== BB update: done ====\n\n");
 }
 EXPORT_SYMBOL(ar9003_hw_bb_watchdog_dbg_info);
+
+void ar9003_hw_disable_phy_restart(struct ath_hw *ah)
+{
+       u32 val;
+
+       /* While receiving unsupported rate frame rx state machine
+        * gets into a state 0xb and if phy_restart happens in that
+        * state, BB would go hang. If RXSM is in 0xb state after
+        * first bb panic, ensure to disable the phy_restart.
+        */
+       if (!((MS(ah->bb_watchdog_last_status,
+                 AR_PHY_WATCHDOG_RX_OFDM_SM) == 0xb) ||
+           ah->bb_hang_rx_ofdm))
+               return;
+
+       ah->bb_hang_rx_ofdm = true;
+       val = REG_READ(ah, AR_PHY_RESTART);
+       val &= ~AR_PHY_RESTART_ENA;
+
+       REG_WRITE(ah, AR_PHY_RESTART, val);
+}
+EXPORT_SYMBOL(ar9003_hw_disable_phy_restart);