From eb83bbf57429ab80f49b413e3e44d3b19c3fdc5a Mon Sep 17 00:00:00 2001 From: Larry Finger <Larry.Finger@lwfinger.net> Date: Tue, 27 Jan 2009 12:31:23 -0600 Subject: [PATCH] rtl8187: Fix error in setting OFDM power settings for RTL8187L MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit After reports of poor performance, a review of the latest vendor driver (rtl8187_linux_26.1025.0328.2007) for RTL8187L devices was undertaken. A difference was found in the code used to index the OFDM power tables. When the Linux driver was changed, my unit works at a much greater range than before. I think this fixes Bugzilla #12380 and has been tested by at least two other users. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Tested-by: MartÃn Ernesto Barreyro <barreyromartin@gmail.com> Cc: Stable <stable@kernel.org> Signed-off-by: John W. Linville <linville@tuxdriver.com> --- drivers/net/wireless/rtl818x/rtl8187_rtl8225.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/rtl818x/rtl8187_rtl8225.c b/drivers/net/wireless/rtl818x/rtl8187_rtl8225.c index 4e75e8e7fa90..78df281b297a 100644 --- a/drivers/net/wireless/rtl818x/rtl8187_rtl8225.c +++ b/drivers/net/wireless/rtl818x/rtl8187_rtl8225.c @@ -285,7 +285,10 @@ static void rtl8225_rf_set_tx_power(struct ieee80211_hw *dev, int channel) ofdm_power = priv->channels[channel - 1].hw_value >> 4; cck_power = min(cck_power, (u8)11); - ofdm_power = min(ofdm_power, (u8)35); + if (ofdm_power > (u8)15) + ofdm_power = 25; + else + ofdm_power += 10; rtl818x_iowrite8(priv, &priv->map->TX_GAIN_CCK, rtl8225_tx_gain_cck_ofdm[cck_power / 6] >> 1); @@ -536,7 +539,10 @@ static void rtl8225z2_rf_set_tx_power(struct ieee80211_hw *dev, int channel) cck_power += priv->txpwr_base & 0xF; cck_power = min(cck_power, (u8)35); - ofdm_power = min(ofdm_power, (u8)15); + if (ofdm_power > (u8)15) + ofdm_power = 25; + else + ofdm_power += 10; ofdm_power += priv->txpwr_base >> 4; ofdm_power = min(ofdm_power, (u8)35); -- GitLab