[PATCH 010/113] rtl8xxxu: Kludge to drop incorrect USB OUT EP for 8192EU
From: <hidden>
Date: 2016-02-29 22:05:53
Subsystem:
rtl8xxxu wireless driver (rtl8xxxu), the rest · Maintainers:
Jes Sorensen, Linus Torvalds
From: Jes Sorensen <redacted> The 8192eu (and some other parts) will report an incorrect USB OUT EP. This tells the chip to drop it - as per the vendor driver. Signed-off-by: Jes Sorensen <redacted> --- drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.c | 6 ++++++ drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_regs.h | 1 + 2 files changed, 7 insertions(+)
diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.c
index 45f787c..9236133 100644
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.c
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.c@@ -4362,6 +4362,12 @@ static int rtl8xxxu_init_device(struct ieee80211_hw *hw) } } + if (priv->rtlchip == 0x8192e) { + val32 = rtl8xxxu_read32(priv, REG_TXDMA_OFFSET_CHK); + val32 |= TXDMA_OFFSET_DROP_DATA_EN; + rtl8xxxu_write32(priv, REG_TXDMA_OFFSET_CHK, val32); + } + ret = rtl8xxxu_init_mac(priv, rtl8723a_mac_init_table); dev_dbg(dev, "%s: init_mac %i\n", __func__, ret); if (ret)
diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_regs.h b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_regs.h
index b83bd34..226a1fa 100644
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_regs.h
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_regs.h@@ -367,6 +367,7 @@ #define REG_FIFOPAGE 0x0204 #define REG_TDECTRL 0x0208 #define REG_TXDMA_OFFSET_CHK 0x020c +#define TXDMA_OFFSET_DROP_DATA_EN BIT(9) #define REG_TXDMA_STATUS 0x0210 #define REG_RQPN_NPQ 0x0214 #define RQPN_NPQ_SHIFT 0
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2.5.0