From: Jes Sorensen <[email protected]> Only 1st generation chips do provide USB interrupts, so do not try to setup interrupts for newer chips (8192eu and 8723bu).
Signed-off-by: Jes Sorensen <[email protected]> --- drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.c | 18 +++++++++++++----- drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h | 1 + 2 files changed, 14 insertions(+), 5 deletions(-) diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.c index 66a0c17..b3fd5c2 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.c +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.c @@ -1707,6 +1707,7 @@ static int rtl8xxxu_identify_chip(struct rtl8xxxu_priv *priv) priv->rtlchip = 0x8723b; } else { sprintf(priv->chip_name, "8723AU"); + priv->usb_interrupts = 1; priv->rtlchip = 0x8723a; } @@ -1744,12 +1745,14 @@ static int rtl8xxxu_identify_chip(struct rtl8xxxu_priv *priv) priv->rf_paths = 2; priv->rx_paths = 2; priv->tx_paths = 1; + priv->usb_interrupts = 1; priv->rtlchip = 0x8191c; } else { sprintf(priv->chip_name, "8192CU"); priv->rf_paths = 2; priv->rx_paths = 2; priv->tx_paths = 2; + priv->usb_interrupts = 1; priv->rtlchip = 0x8192c; } priv->has_wifi = 1; @@ -1759,6 +1762,7 @@ static int rtl8xxxu_identify_chip(struct rtl8xxxu_priv *priv) priv->rx_paths = 1; priv->tx_paths = 1; priv->rtlchip = 0x8188c; + priv->usb_interrupts = 1; priv->has_wifi = 1; } @@ -5825,9 +5829,11 @@ static int rtl8xxxu_start(struct ieee80211_hw *hw) init_usb_anchor(&priv->int_anchor); rtl8723a_enable_rf(priv); - ret = rtl8xxxu_submit_int_urb(hw); - if (ret) - goto exit; + if (priv->usb_interrupts) { + ret = rtl8xxxu_submit_int_urb(hw); + if (ret) + goto exit; + } for (i = 0; i < RTL8XXXU_TX_URBS; i++) { tx_urb = kmalloc(sizeof(struct rtl8xxxu_tx_urb), GFP_KERNEL); @@ -5902,14 +5908,16 @@ static void rtl8xxxu_stop(struct ieee80211_hw *hw) usb_kill_anchored_urbs(&priv->rx_anchor); usb_kill_anchored_urbs(&priv->tx_anchor); - usb_kill_anchored_urbs(&priv->int_anchor); + if (priv->usb_interrupts) + usb_kill_anchored_urbs(&priv->int_anchor); rtl8723a_disable_rf(priv); /* * Disable interrupts */ - rtl8xxxu_write32(priv, REG_USB_HIMR, 0); + if (priv->usb_interrupts) + rtl8xxxu_write32(priv, REG_USB_HIMR, 0); rtl8xxxu_free_rx_resources(priv); rtl8xxxu_free_tx_resources(priv); diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h index bf424db..2055048 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h @@ -693,6 +693,7 @@ struct rtl8xxxu_priv { u32 has_polarity_ctrl:1; u32 has_eeprom:1; u32 boot_eeprom:1; + u32 usb_interrupts:1; u32 ep_tx_high_queue:1; u32 ep_tx_normal_queue:1; u32 ep_tx_low_queue:1; -- 2.5.0 -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
