rtlwifi: rtl8192c-common: rtl8192ce: Fix for HT40 regression

The changes that were made to rtl8192ce when rtl8192cu was added broke
HT40. The errors included a typo in rtlwifi, a missing routine in
rtl8192ce and a missing callback of that routine in rtl8192c-common.

This patch fixes the regression reported in Bug #35082.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: stable@kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>

5 files changed, 73 insertions, 2 deletions

diff --git a/drivers/net/wireless/rtlwifi/ps.c b/drivers/net/wireless/rtlwifi/ps.c
index 2bb71195e976..39b0297ce925 100644
--- a/drivers/net/wireless/rtlwifi/ps.c
+++ b/drivers/net/wireless/rtlwifi/ps.c
@@ -190,7 +190,7 @@ static void _rtl_ps_inactive_ps(struct ieee80211_hw *hw)
 
         ppsc->swrf_processing = true;
 
-        if (ppsc->inactive_pwrstate == ERFOFF &&
+        if (ppsc->inactive_pwrstate == ERFON &&
             rtlhal->interface == INTF_PCI) {
                 if ((ppsc->reg_rfps_level & RT_RF_OFF_LEVL_ASPM) &&
                     RT_IN_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM) &&
diff --git a/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c b/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c
index c5424cad43cb..d2cc81586a6a 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c
@@ -728,7 +728,7 @@ void rtl92c_phy_set_bw_mode(struct ieee80211_hw *hw,
                 return;
         rtlphy->set_bwmode_inprogress = true;
         if ((!is_hal_stop(rtlhal)) && !(RT_CANNOT_IO(hw))) {
-                rtlphy->set_bwmode_inprogress = false;
+                rtlpriv->cfg->ops->phy_set_bw_mode_callback(hw);
         } else {
                 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
                          ("FALSE driver sleep or unload\n"));
diff --git a/drivers/net/wireless/rtlwifi/rtl8192ce/phy.c b/drivers/net/wireless/rtlwifi/rtl8192ce/phy.c
index 73ae8a431848..abe0fcc75368 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192ce/phy.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192ce/phy.c
@@ -366,6 +366,75 @@ bool rtl92c_phy_config_rf_with_headerfile(struct ieee80211_hw *hw,
         return true;
 }
 
+void rtl92ce_phy_set_bw_mode_callback(struct ieee80211_hw *hw)
+{
+        struct rtl_priv *rtlpriv = rtl_priv(hw);
+        struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
+        struct rtl_phy *rtlphy = &(rtlpriv->phy);
+        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
+        u8 reg_bw_opmode;
+        u8 reg_prsr_rsc;
+
+        RT_TRACE(rtlpriv, COMP_SCAN, DBG_TRACE,
+                 ("Switch to %s bandwidth\n",
+                  rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_20 ?
+                  "20MHz" : "40MHz"))
+
+        if (is_hal_stop(rtlhal)) {
+                rtlphy->set_bwmode_inprogress = false;
+                return;
+        }
+
+        reg_bw_opmode = rtl_read_byte(rtlpriv, REG_BWOPMODE);
+        reg_prsr_rsc = rtl_read_byte(rtlpriv, REG_RRSR + 2);
+
+        switch (rtlphy->current_chan_bw) {
+        case HT_CHANNEL_WIDTH_20:
+                reg_bw_opmode |= BW_OPMODE_20MHZ;
+                rtl_write_byte(rtlpriv, REG_BWOPMODE, reg_bw_opmode);
+                break;
+        case HT_CHANNEL_WIDTH_20_40:
+                reg_bw_opmode &= ~BW_OPMODE_20MHZ;
+                rtl_write_byte(rtlpriv, REG_BWOPMODE, reg_bw_opmode);
+                reg_prsr_rsc =
+                    (reg_prsr_rsc & 0x90) | (mac->cur_40_prime_sc << 5);
+                rtl_write_byte(rtlpriv, REG_RRSR + 2, reg_prsr_rsc);
+                break;
+        default:
+                RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
+                         ("unknown bandwidth: %#X\n", rtlphy->current_chan_bw));
+                break;
+        }
+
+        switch (rtlphy->current_chan_bw) {
+        case HT_CHANNEL_WIDTH_20:
+                rtl_set_bbreg(hw, RFPGA0_RFMOD, BRFMOD, 0x0);
+                rtl_set_bbreg(hw, RFPGA1_RFMOD, BRFMOD, 0x0);
+                rtl_set_bbreg(hw, RFPGA0_ANALOGPARAMETER2, BIT(10), 1);
+                break;
+        case HT_CHANNEL_WIDTH_20_40:
+                rtl_set_bbreg(hw, RFPGA0_RFMOD, BRFMOD, 0x1);
+                rtl_set_bbreg(hw, RFPGA1_RFMOD, BRFMOD, 0x1);
+
+                rtl_set_bbreg(hw, RCCK0_SYSTEM, BCCK_SIDEBAND,
+                              (mac->cur_40_prime_sc >> 1));
+                rtl_set_bbreg(hw, ROFDM1_LSTF, 0xC00, mac->cur_40_prime_sc);
+                rtl_set_bbreg(hw, RFPGA0_ANALOGPARAMETER2, BIT(10), 0);
+
+                rtl_set_bbreg(hw, 0x818, (BIT(26) | BIT(27)),
+                              (mac->cur_40_prime_sc ==
+                               HAL_PRIME_CHNL_OFFSET_LOWER) ? 2 : 1);
+                break;
+        default:
+                RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
+                         ("unknown bandwidth: %#X\n", rtlphy->current_chan_bw));
+                break;
+        }
+        rtl92ce_phy_rf6052_set_bandwidth(hw, rtlphy->current_chan_bw);
+        rtlphy->set_bwmode_inprogress = false;
+        RT_TRACE(rtlpriv, COMP_SCAN, DBG_TRACE, ("<==\n"));
+}
+
 void _rtl92ce_phy_lc_calibrate(struct ieee80211_hw *hw, bool is2t)
 {
         u8 tmpreg;
diff --git a/drivers/net/wireless/rtlwifi/rtl8192ce/phy.h b/drivers/net/wireless/rtlwifi/rtl8192ce/phy.h
index ad580852cc76..be2c92adef33 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192ce/phy.h
+++ b/drivers/net/wireless/rtlwifi/rtl8192ce/phy.h
@@ -257,5 +257,6 @@ bool _rtl92ce_phy_config_bb_with_headerfile(struct ieee80211_hw *hw,
                                             u8 configtype);
 bool _rtl92ce_phy_config_bb_with_pgheaderfile(struct ieee80211_hw *hw,
                                               u8 configtype);
+void rtl92ce_phy_set_bw_mode_callback(struct ieee80211_hw *hw);
 
 #endif
diff --git a/drivers/net/wireless/rtlwifi/rtl8192ce/sw.c b/drivers/net/wireless/rtlwifi/rtl8192ce/sw.c
index 390bbb5ee11d..373dc78af1dc 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192ce/sw.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192ce/sw.c
@@ -232,6 +232,7 @@ static struct rtl_hal_ops rtl8192ce_hal_ops = {
         .config_bb_with_headerfile = _rtl92ce_phy_config_bb_with_headerfile,
         .config_bb_with_pgheaderfile = _rtl92ce_phy_config_bb_with_pgheaderfile,
         .phy_lc_calibrate = _rtl92ce_phy_lc_calibrate,
+        .phy_set_bw_mode_callback = rtl92ce_phy_set_bw_mode_callback,
         .dm_dynamic_txpower = rtl92ce_dm_dynamic_txpower,
 };