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rt2x00: Factor out RXWI processing to common rt2800 code.

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RXWI processing is exactly the same for rt2800pci and rt2800usb, so
make it common code.

Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Gertjan van Wingerde
2010-05-08 23:40:22 +02:00
committed by John W. Linville
parent 59679b91d1
commit 2de64dd22d
4 changed files with 85 additions and 103 deletions
Download Patch File Download Diff File Expand all files Collapse all files

90
drivers/net/wireless/rt2x00/rt2800usb.c
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@@ -507,53 +507,45 @@ static void rt2800usb_fill_rxdone(struct queue_entry *entry,
{
struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
__le32 *rxi = (__le32 *)entry->skb->data;
__le32 *rxwi;
__le32 *rxd;
u32 rxi0;
u32 rxwi0;
u32 rxwi1;
u32 rxwi2;
u32 rxwi3;
u32 rxd0;
u32 word;
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, rxi, skbdesc->desc_len);
/*
* RX frame format is :
* | RXINFO | RXWI | header | L2 pad | payload | pad | RXD | USB pad |
* |<------------ rx_pkt_len -------------->|
*/
rt2x00_desc_read(rxi, 0, &word);
rx_pkt_len = rt2x00_get_field32(word, RXINFO_W0_USB_DMA_RX_PKT_LEN);
/*
* Remove the RXINFO structure from the sbk.
*/
skb_pull(entry->skb, RXINFO_DESC_SIZE);
/*
* FIXME: we need to check for rx_pkt_len validity
*/
rxd = (__le32 *)(entry->skb->data + rx_pkt_len);
/*
* It is now safe to read the descriptor on all architectures.
*/
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);
rt2x00_desc_read(rxd, 0, &word);
if (rt2x00_get_field32(rxd0, RXD_W0_CRC_ERROR))
if (rt2x00_get_field32(word, RXD_W0_CRC_ERROR))
rxdesc->flags |= RX_FLAG_FAILED_FCS_CRC;
rxdesc->cipher = rt2x00_get_field32(rxwi0, RXWI_W0_UDF);
rxdesc->cipher_status = rt2x00_get_field32(rxd0, RXD_W0_CIPHER_ERROR);
rxdesc->cipher_status = rt2x00_get_field32(word, RXD_W0_CIPHER_ERROR);
if (rt2x00_get_field32(rxd0, RXD_W0_DECRYPTED)) {
if (rt2x00_get_field32(word, RXD_W0_DECRYPTED)) {
/*
* Hardware has stripped IV/EIV data from 802.11 frame during
* decryption. Unfortunately the descriptor doesn't contain
@@ -568,41 +560,21 @@ static void rt2800usb_fill_rxdone(struct queue_entry *entry,
rxdesc->flags |= RX_FLAG_MMIC_ERROR;
}
if (rt2x00_get_field32(rxd0, RXD_W0_MY_BSS))
if (rt2x00_get_field32(word, RXD_W0_MY_BSS))
rxdesc->dev_flags |= RXDONE_MY_BSS;
if (rt2x00_get_field32(rxd0, RXD_W0_L2PAD))
if (rt2x00_get_field32(word, RXD_W0_L2PAD))
rxdesc->dev_flags |= RXDONE_L2PAD;
if (rt2x00_get_field32(rxwi1, RXWI_W1_SHORT_GI))
rxdesc->flags |= RX_FLAG_SHORT_GI;
if (rt2x00_get_field32(rxwi1, RXWI_W1_BW))
rxdesc->flags |= RX_FLAG_40MHZ;
/*
* Remove RXD descriptor from end of buffer.
*/
skb_trim(entry->skb, rx_pkt_len);
/*
* Detect RX rate, always use MCS as signal type.
* Process the RXWI structure.
*/
rxdesc->dev_flags |= RXDONE_SIGNAL_MCS;
rxdesc->rate_mode = rt2x00_get_field32(rxwi1, RXWI_W1_PHYMODE);
rxdesc->signal = rt2x00_get_field32(rxwi1, RXWI_W1_MCS);
/*
* Mask of 0x8 bit to remove the short preamble flag.
*/
if (rxdesc->rate_mode == RATE_MODE_CCK)
rxdesc->signal &= ~0x8;
rxdesc->rssi =
(rt2x00_get_field32(rxwi2, RXWI_W2_RSSI0) +
rt2x00_get_field32(rxwi2, RXWI_W2_RSSI1)) / 2;
rxdesc->size = rt2x00_get_field32(rxwi0, RXWI_W0_MPDU_TOTAL_BYTE_COUNT);
/*
* Remove RXWI descriptor from start of buffer.
*/
skb_pull(entry->skb, skbdesc->desc_len);
rt2800_process_rxwi(entry->skb, rxdesc);
}
/*