diff options
Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2800lib.c')
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2800lib.c | 178 |
1 files changed, 165 insertions, 13 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c index e37bbea..db4250d 100644 --- a/drivers/net/wireless/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/rt2x00/rt2800lib.c @@ -282,6 +282,104 @@ int rt2800_wait_wpdma_ready(struct rt2x00_dev *rt2x00dev) } EXPORT_SYMBOL_GPL(rt2800_wait_wpdma_ready); +void rt2800_write_txwi(struct sk_buff *skb, struct txentry_desc *txdesc) +{ + __le32 *txwi = (__le32 *)(skb->data - TXWI_DESC_SIZE); + u32 word; + + /* + * Initialize TX Info 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->txop); + 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, txdesc->queue + 1); + rt2x00_desc_write(txwi, 1, word); + + /* + * Always write 0 to IV/EIV fields, hardware will insert the IV + * from the IVEIV register when TXD_W3_WIV is set to 0. + * When TXD_W3_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] */); +} +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, @@ -640,8 +738,6 @@ void rt2800_config_erp(struct rt2x00_dev *rt2x00dev, struct rt2x00lib_erp *erp) rt2800_register_write(rt2x00dev, BKOFF_SLOT_CFG, reg); rt2800_register_read(rt2x00dev, XIFS_TIME_CFG, ®); - rt2x00_set_field32(®, XIFS_TIME_CFG_CCKM_SIFS_TIME, erp->sifs); - rt2x00_set_field32(®, XIFS_TIME_CFG_OFDM_SIFS_TIME, erp->sifs); rt2x00_set_field32(®, XIFS_TIME_CFG_EIFS, erp->eifs); rt2800_register_write(rt2x00dev, XIFS_TIME_CFG, reg); @@ -1415,9 +1511,16 @@ int rt2800_init_registers(struct rt2x00_dev *rt2x00dev) rt2800_register_write(rt2x00dev, EXP_ACK_TIME, 0x002400ca); + /* + * Usually the CCK SIFS time should be set to 10 and the OFDM SIFS + * time should be set to 16. However, the original Ralink driver uses + * 16 for both and indeed using a value of 10 for CCK SIFS results in + * connection problems with 11g + CTS protection. Hence, use the same + * defaults as the Ralink driver: 16 for both, CCK and OFDM SIFS. + */ rt2800_register_read(rt2x00dev, XIFS_TIME_CFG, ®); - rt2x00_set_field32(®, XIFS_TIME_CFG_CCKM_SIFS_TIME, 32); - rt2x00_set_field32(®, XIFS_TIME_CFG_OFDM_SIFS_TIME, 32); + rt2x00_set_field32(®, XIFS_TIME_CFG_CCKM_SIFS_TIME, 16); + rt2x00_set_field32(®, XIFS_TIME_CFG_OFDM_SIFS_TIME, 16); rt2x00_set_field32(®, XIFS_TIME_CFG_OFDM_XIFS_TIME, 4); rt2x00_set_field32(®, XIFS_TIME_CFG_EIFS, 314); rt2x00_set_field32(®, XIFS_TIME_CFG_BB_RXEND_ENABLE, 1); @@ -2219,7 +2322,7 @@ int rt2800_init_eeprom(struct rt2x00_dev *rt2x00dev) EXPORT_SYMBOL_GPL(rt2800_init_eeprom); /* - * RF value list for rt28x0 + * RF value list for rt28xx * Supports: 2.4 GHz (all) & 5.2 GHz (RF2850 & RF2750) */ static const struct rf_channel rf_vals[] = { @@ -2294,10 +2397,10 @@ static const struct rf_channel rf_vals[] = { }; /* - * RF value list for rt3070 - * Supports: 2.4 GHz + * RF value list for rt3xxx + * Supports: 2.4 GHz (all) & 5.2 GHz (RF3052) */ -static const struct rf_channel rf_vals_302x[] = { +static const struct rf_channel rf_vals_3x[] = { {1, 241, 2, 2 }, {2, 241, 2, 7 }, {3, 242, 2, 2 }, @@ -2312,6 +2415,51 @@ static const struct rf_channel rf_vals_302x[] = { {12, 246, 2, 7 }, {13, 247, 2, 2 }, {14, 248, 2, 4 }, + + /* 802.11 UNI / HyperLan 2 */ + {36, 0x56, 0, 4}, + {38, 0x56, 0, 6}, + {40, 0x56, 0, 8}, + {44, 0x57, 0, 0}, + {46, 0x57, 0, 2}, + {48, 0x57, 0, 4}, + {52, 0x57, 0, 8}, + {54, 0x57, 0, 10}, + {56, 0x58, 0, 0}, + {60, 0x58, 0, 4}, + {62, 0x58, 0, 6}, + {64, 0x58, 0, 8}, + + /* 802.11 HyperLan 2 */ + {100, 0x5b, 0, 8}, + {102, 0x5b, 0, 10}, + {104, 0x5c, 0, 0}, + {108, 0x5c, 0, 4}, + {110, 0x5c, 0, 6}, + {112, 0x5c, 0, 8}, + {116, 0x5d, 0, 0}, + {118, 0x5d, 0, 2}, + {120, 0x5d, 0, 4}, + {124, 0x5d, 0, 8}, + {126, 0x5d, 0, 10}, + {128, 0x5e, 0, 0}, + {132, 0x5e, 0, 4}, + {134, 0x5e, 0, 6}, + {136, 0x5e, 0, 8}, + {140, 0x5f, 0, 0}, + + /* 802.11 UNII */ + {149, 0x5f, 0, 9}, + {151, 0x5f, 0, 11}, + {153, 0x60, 0, 1}, + {157, 0x60, 0, 5}, + {159, 0x60, 0, 7}, + {161, 0x60, 0, 9}, + {165, 0x61, 0, 1}, + {167, 0x61, 0, 3}, + {169, 0x61, 0, 5}, + {171, 0x61, 0, 7}, + {173, 0x61, 0, 9}, }; int rt2800_probe_hw_mode(struct rt2x00_dev *rt2x00dev) @@ -2352,11 +2500,11 @@ int rt2800_probe_hw_mode(struct rt2x00_dev *rt2x00dev) spec->supported_rates = SUPPORT_RATE_CCK | SUPPORT_RATE_OFDM; if (rt2x00_rf(rt2x00dev, RF2820) || - rt2x00_rf(rt2x00dev, RF2720) || - rt2x00_rf(rt2x00dev, RF3052)) { + rt2x00_rf(rt2x00dev, RF2720)) { spec->num_channels = 14; spec->channels = rf_vals; - } else if (rt2x00_rf(rt2x00dev, RF2850) || rt2x00_rf(rt2x00dev, RF2750)) { + } else if (rt2x00_rf(rt2x00dev, RF2850) || + rt2x00_rf(rt2x00dev, RF2750)) { spec->supported_bands |= SUPPORT_BAND_5GHZ; spec->num_channels = ARRAY_SIZE(rf_vals); spec->channels = rf_vals; @@ -2364,8 +2512,12 @@ int rt2800_probe_hw_mode(struct rt2x00_dev *rt2x00dev) rt2x00_rf(rt2x00dev, RF2020) || rt2x00_rf(rt2x00dev, RF3021) || rt2x00_rf(rt2x00dev, RF3022)) { - spec->num_channels = ARRAY_SIZE(rf_vals_302x); - spec->channels = rf_vals_302x; + spec->num_channels = 14; + spec->channels = rf_vals_3x; + } else if (rt2x00_rf(rt2x00dev, RF3052)) { + spec->supported_bands |= SUPPORT_BAND_5GHZ; + spec->num_channels = ARRAY_SIZE(rf_vals_3x); + spec->channels = rf_vals_3x; } /* |
