diff options
Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2800usb.c')
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2800usb.c | 38 |
1 files changed, 27 insertions, 11 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2800usb.c b/drivers/net/wireless/rt2x00/rt2800usb.c index 9c4412b42e5b..40295b454ff6 100644 --- a/drivers/net/wireless/rt2x00/rt2800usb.c +++ b/drivers/net/wireless/rt2x00/rt2800usb.c @@ -571,41 +571,57 @@ static void rt2800usb_fill_rxdone(struct queue_entry *entry, { struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev; struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb); - __le32 *rxd = (__le32 *)entry->skb->data; + __le32 *rxi = (__le32 *)entry->skb->data; __le32 *rxwi; - u32 rxd0; + __le32 *rxd; + u32 rxi0; u32 rxwi0; u32 rxwi1; u32 rxwi2; u32 rxwi3; + u32 rxd0; + int rx_pkt_len; + + /* + * RX frame format is : + * | RXINFO | RXWI | header | L2 pad | payload | pad | RXD | USB pad | + * |<------------ rx_pkt_len -------------->| + */ + rt2x00_desc_read(rxi, 0, &rxi0); + rx_pkt_len = rt2x00_get_field32(rxi0, RXINFO_W0_USB_DMA_RX_PKT_LEN); + + rxwi = (__le32 *)(entry->skb->data + RXINFO_DESC_SIZE); + + /* + * FIXME : we need to check for rx_pkt_len validity + */ + rxd = (__le32 *)(entry->skb->data + RXINFO_DESC_SIZE + rx_pkt_len); /* * Copy descriptor to the skbdesc->desc buffer, making it safe from * moving of frame data in rt2x00usb. */ - memcpy(skbdesc->desc, rxd, skbdesc->desc_len); - rxd = (__le32 *)skbdesc->desc; - rxwi = &rxd[RXINFO_DESC_SIZE / sizeof(__le32)]; + memcpy(skbdesc->desc, rxi, skbdesc->desc_len); /* * It is now safe to read the descriptor on all architectures. */ - rt2x00_desc_read(rxd, 0, &rxd0); rt2x00_desc_read(rxwi, 0, &rxwi0); rt2x00_desc_read(rxwi, 1, &rxwi1); rt2x00_desc_read(rxwi, 2, &rxwi2); rt2x00_desc_read(rxwi, 3, &rxwi3); + rt2x00_desc_read(rxd, 0, &rxd0); - if (rt2x00_get_field32(rxd0, RXINFO_W0_CRC_ERROR)) + if (rt2x00_get_field32(rxd0, RXD_W0_CRC_ERROR)) rxdesc->flags |= RX_FLAG_FAILED_FCS_CRC; if (test_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags)) { rxdesc->cipher = rt2x00_get_field32(rxwi0, RXWI_W0_UDF); rxdesc->cipher_status = - rt2x00_get_field32(rxd0, RXINFO_W0_CIPHER_ERROR); + rt2x00_get_field32(rxd0, RXD_W0_CIPHER_ERROR); } - if (rt2x00_get_field32(rxd0, RXINFO_W0_DECRYPTED)) { + if (rt2x00_get_field32(rxd0, RXD_W0_DECRYPTED)) { /* * Hardware has stripped IV/EIV data from 802.11 frame during * decryption. Unfortunately the descriptor doesn't contain @@ -620,10 +636,10 @@ static void rt2800usb_fill_rxdone(struct queue_entry *entry, rxdesc->flags |= RX_FLAG_MMIC_ERROR; } - if (rt2x00_get_field32(rxd0, RXINFO_W0_MY_BSS)) + if (rt2x00_get_field32(rxd0, RXD_W0_MY_BSS)) rxdesc->dev_flags |= RXDONE_MY_BSS; - if (rt2x00_get_field32(rxd0, RXINFO_W0_L2PAD)) + if (rt2x00_get_field32(rxd0, RXD_W0_L2PAD)) rxdesc->dev_flags |= RXDONE_L2PAD; if (rt2x00_get_field32(rxwi1, RXWI_W1_SHORT_GI)) |