diff options
Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2800usb.c')
-rw-r--r-- | drivers/net/wireless/rt2x00/rt2800usb.c | 176 |
1 files changed, 44 insertions, 132 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2800usb.c b/drivers/net/wireless/rt2x00/rt2800usb.c index e3f3a97..8ad0669 100644 --- a/drivers/net/wireless/rt2x00/rt2800usb.c +++ b/drivers/net/wireless/rt2x00/rt2800usb.c @@ -401,59 +401,15 @@ static void rt2800usb_write_tx_desc(struct rt2x00_dev *rt2x00dev, { struct skb_frame_desc *skbdesc = get_skb_frame_desc(skb); __le32 *txi = skbdesc->desc; - __le32 *txwi = &txi[TXINFO_DESC_SIZE / sizeof(__le32)]; u32 word; /* - * Initialize TX Info descriptor + * Initialize TXWI descriptor */ - rt2x00_desc_read(txwi, 0, &word); - rt2x00_set_field32(&word, TXWI_W0_FRAG, - test_bit(ENTRY_TXD_MORE_FRAG, &txdesc->flags)); - rt2x00_set_field32(&word, TXWI_W0_MIMO_PS, 0); - rt2x00_set_field32(&word, TXWI_W0_CF_ACK, 0); - rt2x00_set_field32(&word, TXWI_W0_TS, - test_bit(ENTRY_TXD_REQ_TIMESTAMP, &txdesc->flags)); - rt2x00_set_field32(&word, TXWI_W0_AMPDU, - test_bit(ENTRY_TXD_HT_AMPDU, &txdesc->flags)); - rt2x00_set_field32(&word, TXWI_W0_MPDU_DENSITY, txdesc->mpdu_density); - rt2x00_set_field32(&word, TXWI_W0_TX_OP, txdesc->ifs); - rt2x00_set_field32(&word, TXWI_W0_MCS, txdesc->mcs); - rt2x00_set_field32(&word, TXWI_W0_BW, - test_bit(ENTRY_TXD_HT_BW_40, &txdesc->flags)); - rt2x00_set_field32(&word, TXWI_W0_SHORT_GI, - test_bit(ENTRY_TXD_HT_SHORT_GI, &txdesc->flags)); - rt2x00_set_field32(&word, TXWI_W0_STBC, txdesc->stbc); - rt2x00_set_field32(&word, TXWI_W0_PHYMODE, txdesc->rate_mode); - rt2x00_desc_write(txwi, 0, word); - - rt2x00_desc_read(txwi, 1, &word); - rt2x00_set_field32(&word, TXWI_W1_ACK, - test_bit(ENTRY_TXD_ACK, &txdesc->flags)); - rt2x00_set_field32(&word, TXWI_W1_NSEQ, - test_bit(ENTRY_TXD_GENERATE_SEQ, &txdesc->flags)); - rt2x00_set_field32(&word, TXWI_W1_BW_WIN_SIZE, txdesc->ba_size); - rt2x00_set_field32(&word, TXWI_W1_WIRELESS_CLI_ID, - test_bit(ENTRY_TXD_ENCRYPT, &txdesc->flags) ? - txdesc->key_idx : 0xff); - rt2x00_set_field32(&word, TXWI_W1_MPDU_TOTAL_BYTE_COUNT, - txdesc->length); - rt2x00_set_field32(&word, TXWI_W1_PACKETID, - skbdesc->entry->queue->qid + 1); - rt2x00_desc_write(txwi, 1, word); + rt2800_write_txwi(skb, txdesc); /* - * Always write 0 to IV/EIV fields, hardware will insert the IV - * from the IVEIV register when TXINFO_W0_WIV is set to 0. - * When TXINFO_W0_WIV is set to 1 it will use the IV data - * from the descriptor. The TXWI_W1_WIRELESS_CLI_ID indicates which - * crypto entry in the registers should be used to encrypt the frame. - */ - _rt2x00_desc_write(txwi, 2, 0 /* skbdesc->iv[0] */); - _rt2x00_desc_write(txwi, 3, 0 /* skbdesc->iv[1] */); - - /* - * Initialize TX descriptor + * Initialize TXINFO descriptor */ rt2x00_desc_read(txi, 0, &word); rt2x00_set_field32(&word, TXINFO_W0_USB_DMA_TX_PKT_LEN, @@ -471,21 +427,14 @@ static void rt2800usb_write_tx_desc(struct rt2x00_dev *rt2x00dev, /* * TX data initialization */ -static void rt2800usb_write_beacon(struct queue_entry *entry) +static void rt2800usb_write_beacon(struct queue_entry *entry, + struct txentry_desc *txdesc) { struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev; - struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb); unsigned int beacon_base; u32 reg; /* - * Add the descriptor in front of the skb. - */ - skb_push(entry->skb, entry->queue->desc_size); - memcpy(entry->skb->data, skbdesc->desc, skbdesc->desc_len); - skbdesc->desc = entry->skb->data; - - /* * Disable beaconing while we are reloading the beacon data, * otherwise we might be sending out invalid data. */ @@ -494,6 +443,12 @@ static void rt2800usb_write_beacon(struct queue_entry *entry) rt2800_register_write(rt2x00dev, BCN_TIME_CFG, reg); /* + * Add the TXWI for the beacon to the skb. + */ + rt2800_write_txwi(entry->skb, txdesc); + skb_push(entry->skb, TXWI_DESC_SIZE); + + /* * Write entire beacon with descriptor to register. */ beacon_base = HW_BEACON_OFFSET(entry->entry_idx); @@ -503,6 +458,14 @@ static void rt2800usb_write_beacon(struct queue_entry *entry) REGISTER_TIMEOUT32(entry->skb->len)); /* + * Enable beaconing again. + */ + rt2x00_set_field32(®, BCN_TIME_CFG_TSF_TICKING, 1); + rt2x00_set_field32(®, BCN_TIME_CFG_TBTT_ENABLE, 1); + rt2x00_set_field32(®, BCN_TIME_CFG_BEACON_GEN, 1); + rt2800_register_write(rt2x00dev, BCN_TIME_CFG, reg); + + /* * Clean up the beacon skb. */ dev_kfree_skb(entry->skb); @@ -524,84 +487,53 @@ static int rt2800usb_get_tx_data_len(struct queue_entry *entry) return length; } -static void rt2800usb_kick_tx_queue(struct rt2x00_dev *rt2x00dev, - const enum data_queue_qid queue) -{ - u32 reg; - - if (queue != QID_BEACON) { - rt2x00usb_kick_tx_queue(rt2x00dev, queue); - return; - } - - rt2800_register_read(rt2x00dev, BCN_TIME_CFG, ®); - if (!rt2x00_get_field32(reg, BCN_TIME_CFG_BEACON_GEN)) { - rt2x00_set_field32(®, BCN_TIME_CFG_TSF_TICKING, 1); - rt2x00_set_field32(®, BCN_TIME_CFG_TBTT_ENABLE, 1); - rt2x00_set_field32(®, BCN_TIME_CFG_BEACON_GEN, 1); - rt2800_register_write(rt2x00dev, BCN_TIME_CFG, reg); - } -} - /* * RX control handlers */ static void rt2800usb_fill_rxdone(struct queue_entry *entry, struct rxdone_entry_desc *rxdesc) { - struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev; 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; - 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, 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 @@ -616,41 +548,21 @@ 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; - /* - * 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); } /* @@ -743,7 +655,7 @@ static const struct rt2x00lib_ops rt2800usb_rt2x00_ops = { .write_tx_data = rt2x00usb_write_tx_data, .write_beacon = rt2800usb_write_beacon, .get_tx_data_len = rt2800usb_get_tx_data_len, - .kick_tx_queue = rt2800usb_kick_tx_queue, + .kick_tx_queue = rt2x00usb_kick_tx_queue, .kill_tx_queue = rt2x00usb_kill_tx_queue, .fill_rxdone = rt2800usb_fill_rxdone, .config_shared_key = rt2800_config_shared_key, @@ -841,7 +753,7 @@ static struct usb_device_id rt2800usb_device_table[] = { { USB_DEVICE(0x7392, 0x7717), USB_DEVICE_DATA(&rt2800usb_ops) }, { USB_DEVICE(0x7392, 0x7718), USB_DEVICE_DATA(&rt2800usb_ops) }, /* EnGenius */ - { USB_DEVICE(0X1740, 0x9701), USB_DEVICE_DATA(&rt2800usb_ops) }, + { USB_DEVICE(0x1740, 0x9701), USB_DEVICE_DATA(&rt2800usb_ops) }, { USB_DEVICE(0x1740, 0x9702), USB_DEVICE_DATA(&rt2800usb_ops) }, /* Gigabyte */ { USB_DEVICE(0x1044, 0x800b), USB_DEVICE_DATA(&rt2800usb_ops) }, |