}
EXPORT_SYMBOL_GPL(rt2800_write_txwi);
+void rt2800_process_rxwi(struct sk_buff *skb, struct rxdone_entry_desc *rxdesc)
+{
+ __le32 *rxwi = (__le32 *) skb->data;
+ u32 word;
+
+ rt2x00_desc_read(rxwi, 0, &word);
+
+ rxdesc->cipher = rt2x00_get_field32(word, RXWI_W0_UDF);
+ rxdesc->size = rt2x00_get_field32(word, RXWI_W0_MPDU_TOTAL_BYTE_COUNT);
+
+ rt2x00_desc_read(rxwi, 1, &word);
+
+ if (rt2x00_get_field32(word, RXWI_W1_SHORT_GI))
+ rxdesc->flags |= RX_FLAG_SHORT_GI;
+
+ if (rt2x00_get_field32(word, RXWI_W1_BW))
+ rxdesc->flags |= RX_FLAG_40MHZ;
+
+ /*
+ * Detect RX rate, always use MCS as signal type.
+ */
+ rxdesc->dev_flags |= RXDONE_SIGNAL_MCS;
+ rxdesc->signal = rt2x00_get_field32(word, RXWI_W1_MCS);
+ rxdesc->rate_mode = rt2x00_get_field32(word, RXWI_W1_PHYMODE);
+
+ /*
+ * Mask of 0x8 bit to remove the short preamble flag.
+ */
+ if (rxdesc->rate_mode == RATE_MODE_CCK)
+ rxdesc->signal &= ~0x8;
+
+ rt2x00_desc_read(rxwi, 2, &word);
+
+ rxdesc->rssi =
+ (rt2x00_get_field32(word, RXWI_W2_RSSI0) +
+ rt2x00_get_field32(word, RXWI_W2_RSSI1)) / 2;
+
+ /*
+ * Remove RXWI descriptor from start of buffer.
+ */
+ skb_pull(skb, RXWI_DESC_SIZE);
+}
+EXPORT_SYMBOL_GPL(rt2800_process_rxwi);
+
#ifdef CONFIG_RT2X00_LIB_DEBUGFS
const struct rt2x00debug rt2800_rt2x00debug = {
.owner = THIS_MODULE,
const u8 arg0, const u8 arg1);
void rt2800_write_txwi(struct sk_buff *skb, struct txentry_desc *txdesc);
+void rt2800_process_rxwi(struct sk_buff *skb, struct rxdone_entry_desc *txdesc);
extern const struct rt2x00debug rt2800_rt2x00debug;
struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
struct queue_entry_priv_pci *entry_priv = entry->priv_data;
__le32 *rxd = entry_priv->desc;
- __le32 *rxwi = (__le32 *)entry->skb->data;
- u32 rxd3;
- u32 rxwi0;
- u32 rxwi1;
- u32 rxwi2;
- u32 rxwi3;
-
- rt2x00_desc_read(rxd, 3, &rxd3);
- rt2x00_desc_read(rxwi, 0, &rxwi0);
- rt2x00_desc_read(rxwi, 1, &rxwi1);
- rt2x00_desc_read(rxwi, 2, &rxwi2);
- rt2x00_desc_read(rxwi, 3, &rxwi3);
-
- if (rt2x00_get_field32(rxd3, RXD_W3_CRC_ERROR))
+ u32 word;
+
+ rt2x00_desc_read(rxd, 3, &word);
+
+ if (rt2x00_get_field32(word, RXD_W3_CRC_ERROR))
rxdesc->flags |= RX_FLAG_FAILED_FCS_CRC;
/*
* decryption. This prevents us from correct providing
* correct statistics through debugfs.
*/
- rxdesc->cipher = rt2x00_get_field32(rxwi0, RXWI_W0_UDF);
- rxdesc->cipher_status = rt2x00_get_field32(rxd3, RXD_W3_CIPHER_ERROR);
+ rxdesc->cipher_status = rt2x00_get_field32(word, RXD_W3_CIPHER_ERROR);
- if (rt2x00_get_field32(rxd3, RXD_W3_DECRYPTED)) {
+ if (rt2x00_get_field32(word, RXD_W3_DECRYPTED)) {
/*
* Hardware has stripped IV/EIV data from 802.11 frame during
* decryption. Unfortunately the descriptor doesn't contain
rxdesc->flags |= RX_FLAG_MMIC_ERROR;
}
- if (rt2x00_get_field32(rxd3, RXD_W3_MY_BSS))
+ if (rt2x00_get_field32(word, RXD_W3_MY_BSS))
rxdesc->dev_flags |= RXDONE_MY_BSS;
- if (rt2x00_get_field32(rxd3, RXD_W3_L2PAD))
+ if (rt2x00_get_field32(word, RXD_W3_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;
-
/*
- * Detect RX rate, always use MCS as signal type.
+ * Process the RXWI structure that is at the start of the buffer.
*/
- 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);
+ rt2800_process_rxwi(entry->skb, rxdesc);
/*
* Set RX IDX in register to inform hardware that we have handled
* this entry and it is available for reuse again.
*/
rt2800_register_write(rt2x00dev, RX_CRX_IDX, entry->entry_idx);
-
- /*
- * Remove TXWI descriptor from start of buffer.
- */
- skb_pull(entry->skb, RXWI_DESC_SIZE);
}
/*
{
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;
+ /*
+ * 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, &rxi0);
- rx_pkt_len = rt2x00_get_field32(rxi0, RXINFO_W0_USB_DMA_RX_PKT_LEN);
-
- rxwi = (__le32 *)(entry->skb->data + RXINFO_DESC_SIZE);
+ rt2x00_desc_read(rxi, 0, &word);
+ rx_pkt_len = rt2x00_get_field32(word, RXINFO_W0_USB_DMA_RX_PKT_LEN);
/*
- * FIXME : we need to check for rx_pkt_len validity
+ * Remove the RXINFO structure from the sbk.
*/
- rxd = (__le32 *)(entry->skb->data + RXINFO_DESC_SIZE + rx_pkt_len);
+ skb_pull(entry->skb, RXINFO_DESC_SIZE);
/*
- * Copy descriptor to the skbdesc->desc buffer, making it safe from
- * moving of frame data in rt2x00usb.
+ * FIXME: we need to check for rx_pkt_len validity
*/
- memcpy(skbdesc->desc, rxi, skbdesc->desc_len);
+ 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
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;
-
/*
- * Detect RX rate, always use MCS as signal type.
+ * Remove RXD descriptor from end of buffer.
*/
- 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);
+ skb_trim(entry->skb, rx_pkt_len);
/*
- * Remove RXWI descriptor from start of buffer.
+ * Process the RXWI structure.
*/
- skb_pull(entry->skb, skbdesc->desc_len);
+ rt2800_process_rxwi(entry->skb, rxdesc);
}
/*
projects / GitHub / MotorolaMobilityLLC / kernel-slsi.git / commitdiff