This is a note to let you know that I've just added the patch titled
rtlwifi: rtl8192c-common: rtl8192ce: Fix for HT40 regression
to the 2.6.39-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
rtlwifi-rtl8192c-common-rtl8192ce-fix-for-ht40-regression.patch
and it can be found in the queue-2.6.39 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 099fb8ab1e57e5d609ac686cc0ab6d1835a79155 Mon Sep 17 00:00:00 2001
From: Larry Finger <[email protected]>
Date: Sat, 14 May 2011 10:15:17 -0500
Subject: rtlwifi: rtl8192c-common: rtl8192ce: Fix for HT40 regression
From: Larry Finger <[email protected]>
commit 099fb8ab1e57e5d609ac686cc0ab6d1835a79155 upstream.
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 <[email protected]>
Signed-off-by: John W. Linville <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/net/wireless/rtlwifi/ps.c | 2
drivers/net/wireless/rtlwifi/rtl8192ce/phy.c | 69 +++++++++++++++++++++++++++
drivers/net/wireless/rtlwifi/rtl8192ce/phy.h | 1
3 files changed, 71 insertions(+), 1 deletion(-)
--- a/drivers/net/wireless/rtlwifi/ps.c
+++ b/drivers/net/wireless/rtlwifi/ps.c
@@ -205,7 +205,7 @@ static void _rtl_ps_inactive_ps(struct i
rtl_ps_set_rf_state(hw, ppsc->inactive_pwrstate,
RF_CHANGE_BY_IPS, false);
- if (ppsc->inactive_pwrstate == ERFOFF &&
+ if (ppsc->inactive_pwrstate == ERFON &&
rtlhal->interface == INTF_PCI) {
if (ppsc->reg_rfps_level & RT_RF_OFF_LEVL_ASPM) {
rtlpriv->intf_ops->enable_aspm(hw);
--- a/drivers/net/wireless/rtlwifi/rtl8192ce/phy.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192ce/phy.c
@@ -432,6 +432,75 @@ void rtl92ce_phy_set_bw_mode_callback(st
RT_TRACE(rtlpriv, COMP_SCAN, DBG_TRACE, ("<==\n"));
}
+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;
--- a/drivers/net/wireless/rtlwifi/rtl8192ce/phy.h
+++ b/drivers/net/wireless/rtlwifi/rtl8192ce/phy.h
@@ -250,5 +250,6 @@ bool _rtl92ce_phy_config_mac_with_header
void _rtl92c_phy_init_bb_rf_register_definition(struct ieee80211_hw *hw);
bool _rtl92c_phy_bb8192c_config_parafile(struct ieee80211_hw *hw);
void _rtl92c_phy_set_rf_sleep(struct ieee80211_hw *hw);
+void rtl92ce_phy_set_bw_mode_callback(struct ieee80211_hw *hw);
#endif
Patches currently in stable-queue which might be from [email protected]
are
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