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authorHerton Ronaldo Krzesinski <herton@mandriva.com.br>2008-10-13 18:11:00 +0000
committerJohn W. Linville <linville@tuxdriver.com>2008-10-31 19:00:19 -0400
commitf8288317b5076fde0bb4e91cd4754379c850be7a (patch)
treec0d96383a3d66ccecd141a9275c05bf6307f69de /drivers/net/wireless/rtl8187_rtl8225.c
parent64761077f815660276f69b497edb9842d880df9a (diff)
downloadlinux-linaro-stable-f8288317b5076fde0bb4e91cd4754379c850be7a.tar.gz
rtl8187: add short slot handling for 8187B
This change adds short slot handling for 8187B variant of rtl8187 chips. Some things to note about changes done: * Values used are chosen to met 802.11-2007 spec. This raised a question about SIFS value used with 8187L: 0x22 (34) doesn't match any spec value. For now just don't change 8187L, but is something to be looked at. * On 8187B, the location of EIFS register is at the same place as BRSR+1 of struct rtl818x_csr. Unfortunately there is no clean way to accomodate 8187B differences currently, just use address of BRSR+1 and comment about it. The same thing happens for Ack timeout register, that is on CARRIER_SENSE_COUNTER location of 8187L. The eifs and ack timeout values are in units of 4us. All these registers information was gathered from references being the vendor gpl driver and 8180 datasheet, unfortunately there is no information about this on 8187B datasheet. Also the ack timeout value was inspired by the same calculation as done on rt2x00. Signed-off-by: Herton Ronaldo Krzesinski <herton@mandriva.com.br> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/rtl8187_rtl8225.c')
-rw-r--r--drivers/net/wireless/rtl8187_rtl8225.c8
1 files changed, 0 insertions, 8 deletions
diff --git a/drivers/net/wireless/rtl8187_rtl8225.c b/drivers/net/wireless/rtl8187_rtl8225.c
index 1bae89903410..b999f87ed150 100644
--- a/drivers/net/wireless/rtl8187_rtl8225.c
+++ b/drivers/net/wireless/rtl8187_rtl8225.c
@@ -885,14 +885,6 @@ static void rtl8225z2_b_rf_init(struct ieee80211_hw *dev)
for (i = 0; i < ARRAY_SIZE(rtl8225z2_ofdm); i++)
rtl8225_write_phy_ofdm(dev, i, rtl8225z2_ofdm[i]);
- rtl818x_iowrite8(priv, &priv->map->SIFS, 0x22);
- rtl818x_iowrite8(priv, &priv->map->SLOT, 9);
- rtl818x_iowrite8(priv, (u8 *)0xFFF0, 28);
- rtl818x_iowrite8(priv, (u8 *)0xFFF4, 28);
- rtl818x_iowrite8(priv, (u8 *)0xFFF8, 28);
- rtl818x_iowrite8(priv, (u8 *)0xFFFC, 28);
- rtl818x_iowrite8(priv, (u8 *)0xFF2D, 0x5B);
- rtl818x_iowrite8(priv, (u8 *)0xFF79, 0x5B);
rtl818x_iowrite32(priv, (__le32 *)0xFFF0, (7 << 12) | (3 << 8) | 28);
rtl818x_iowrite32(priv, (__le32 *)0xFFF4, (7 << 12) | (3 << 8) | 28);
rtl818x_iowrite32(priv, (__le32 *)0xFFF8, (7 << 12) | (3 << 8) | 28);