From 17cb73ae89e15b60276f0b6583d4ed30b6bdeb4f Mon Sep 17 00:00:00 2001 From: Jes Sorensen Date: Wed, 10 Aug 2016 15:41:13 -0400 Subject: [PATCH] rtl8xxxu: Disable packet DMA aggregation on 8188eu For now disable packet DMA aggregation on the 8188eu, rather then risking the feature being left on by the init tables. Signed-off-by: Jes Sorensen --- drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c @@ -345,6 +345,19 @@ rtl8188e_set_tx_power(struct rtl8xxxu_pr rtl8xxxu_write32(priv, REG_TX_AGC_A_MCS15_MCS12, mcs); } +void rtl8188eu_init_aggregation(struct rtl8xxxu_priv *priv) +{ + u8 agg_ctrl, usb_spec; + + usb_spec = rtl8xxxu_read8(priv, REG_USB_SPECIAL_OPTION); + usb_spec &= ~USB_SPEC_USB_AGG_ENABLE; + rtl8xxxu_write8(priv, REG_USB_SPECIAL_OPTION, usb_spec); + + agg_ctrl = rtl8xxxu_read8(priv, REG_TRXDMA_CTRL); + agg_ctrl &= ~TRXDMA_CTRL_RXDMA_AGG_EN; + rtl8xxxu_write8(priv, REG_TRXDMA_CTRL, agg_ctrl); +} + static int rtl8188eu_parse_efuse(struct rtl8xxxu_priv *priv) { struct rtl8188eu_efuse *efuse = &priv->efuse_wifi.efuse8188eu; @@ -1107,6 +1120,7 @@ struct rtl8xxxu_fileops rtl8188eu_fops = .phy_iq_calibrate = rtl8188eu_phy_iq_calibrate, .config_channel = rtl8xxxu_gen1_config_channel, .parse_rx_desc = rtl8xxxu_parse_rxdesc16, + .init_aggregation = rtl8188eu_init_aggregation, .enable_rf = rtl8188e_enable_rf, .disable_rf = rtl8188e_disable_rf, .usb_quirks = rtl8188e_usb_quirks,