From 97204e93f01868eeba6ae5c4f3270f32905bb418 Mon Sep 17 00:00:00 2001 From: Larry Finger Date: Mon, 18 Nov 2013 11:11:32 -0600 Subject: [PATCH] rtlwifi: rtl8192c: Add routines to save/restore power index registers Signed-off-by: Larry Finger Cc: Stable Signed-off-by: John W. Linville --- .../net/wireless/rtlwifi/rtl8192c/dm_common.c | 36 +++++++++++++++++++ 1 file changed, 36 insertions(+) diff --git a/drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c b/drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c index e9caa5d4cff0..9fc4b64d6bf0 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c +++ b/drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c @@ -158,6 +158,42 @@ static const u8 cckswing_table_ch14[CCK_TABLE_SIZE][8] = { {0x09, 0x08, 0x07, 0x04, 0x00, 0x00, 0x00, 0x00} }; +static u32 power_index_reg[6] = {0xc90, 0xc91, 0xc92, 0xc98, 0xc99, 0xc9a}; + +void dm_restorepowerindex(struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + u8 index; + + for (index = 0; index < 6; index++) + rtl_write_byte(rtlpriv, power_index_reg[index], + rtlpriv->dm.powerindex_backup[index]); +} +EXPORT_SYMBOL_GPL(dm_restorepowerindex); + +void dm_writepowerindex(struct ieee80211_hw *hw, u8 value) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + u8 index; + + for (index = 0; index < 6; index++) + rtl_write_byte(rtlpriv, power_index_reg[index], value); +} +EXPORT_SYMBOL_GPL(dm_writepowerindex); + +void dm_savepowerindex(struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + u8 index; + u8 tmp; + + for (index = 0; index < 6; index++) { + tmp = rtl_read_byte(rtlpriv, power_index_reg[index]); + rtlpriv->dm.powerindex_backup[index] = tmp; + } +} +EXPORT_SYMBOL_GPL(dm_savepowerindex); + static void rtl92c_dm_diginit(struct ieee80211_hw *hw) { struct rtl_priv *rtlpriv = rtl_priv(hw); -- 2.20.1