From 19999792d2889350611ba9e346d6a2924959dc2d Mon Sep 17 00:00:00 2001 From: Thadeu Lima de Souza Cascardo Date: Thu, 28 Oct 2010 20:01:00 -0200 Subject: [PATCH] rtl8187b: do not do per packet TX AGC Clearing the per packet TX AGC for the RTL8187B device appears to increase its overall TX power. This allows the device to associate and a connection to be established using APs a little further away. This is in accordance to what is done for RTL8187L devices and also what Realtek drivers do. Tested-by: Thadeu Lima de Souza Cascardo Signed-off-by: Thadeu Lima de Souza Cascardo Cc: linux-wireless@vger.kernel.org Cc: Larry Finger Cc: Rogerio Luz Coelho Cc: Herton Ronaldo Krzesinski Cc: Hin-Tak Leung Cc: seno Tested-by: Herton Ronaldo Krzesinski Signed-off-by: John W. Linville --- drivers/net/wireless/rtl818x/rtl8187_dev.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/rtl818x/rtl8187_dev.c b/drivers/net/wireless/rtl818x/rtl8187_dev.c index 38fa824..6e26149 100644 --- a/drivers/net/wireless/rtl818x/rtl8187_dev.c +++ b/drivers/net/wireless/rtl818x/rtl8187_dev.c @@ -775,10 +775,6 @@ static int rtl8187b_init_hw(struct ieee80211_hw *dev) reg = rtl818x_ioread8(priv, &priv->map->CW_CONF); reg |= RTL818X_CW_CONF_PERPACKET_RETRY_SHIFT; rtl818x_iowrite8(priv, &priv->map->CW_CONF, reg); - reg = rtl818x_ioread8(priv, &priv->map->TX_AGC_CTL); - reg |= RTL818X_TX_AGC_CTL_PERPACKET_GAIN_SHIFT | - RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL_SHIFT; - rtl818x_iowrite8(priv, &priv->map->TX_AGC_CTL, reg); rtl818x_iowrite16_idx(priv, (__le16 *)0xFFE0, 0x0FFF, 1); @@ -929,6 +925,12 @@ static int rtl8187_start(struct ieee80211_hw *dev) priv->rx_conf = reg; rtl818x_iowrite32(priv, &priv->map->RX_CONF, reg); + reg = rtl818x_ioread8(priv, &priv->map->TX_AGC_CTL); + reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_GAIN_SHIFT; + reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL_SHIFT; + reg &= ~RTL818X_TX_AGC_CTL_FEEDBACK_ANT; + rtl818x_iowrite8(priv, &priv->map->TX_AGC_CTL, reg); + rtl818x_iowrite32(priv, &priv->map->TX_CONF, RTL818X_TX_CONF_HW_SEQNUM | RTL818X_TX_CONF_DISREQQSIZE | -- 2.7.4