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path: root/drivers/net/wireless/rt2x00/rt2800lib.c
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Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2800lib.c')
-rw-r--r--drivers/net/wireless/rt2x00/rt2800lib.c157
1 files changed, 157 insertions, 0 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index ddd53c02be7a..5c7d74a6f16e 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -1658,3 +1658,160 @@ int rt2800_init_rfcsr(struct rt2x00_dev *rt2x00dev)
1658 return 0; 1658 return 0;
1659} 1659}
1660EXPORT_SYMBOL_GPL(rt2800_init_rfcsr); 1660EXPORT_SYMBOL_GPL(rt2800_init_rfcsr);
1661
1662/*
1663 * IEEE80211 stack callback functions.
1664 */
1665static void rt2800_get_tkip_seq(struct ieee80211_hw *hw, u8 hw_key_idx,
1666 u32 *iv32, u16 *iv16)
1667{
1668 struct rt2x00_dev *rt2x00dev = hw->priv;
1669 struct mac_iveiv_entry iveiv_entry;
1670 u32 offset;
1671
1672 offset = MAC_IVEIV_ENTRY(hw_key_idx);
1673 rt2800_register_multiread(rt2x00dev, offset,
1674 &iveiv_entry, sizeof(iveiv_entry));
1675
1676 memcpy(&iveiv_entry.iv[0], iv16, sizeof(iv16));
1677 memcpy(&iveiv_entry.iv[4], iv32, sizeof(iv32));
1678}
1679
1680static int rt2800_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
1681{
1682 struct rt2x00_dev *rt2x00dev = hw->priv;
1683 u32 reg;
1684 bool enabled = (value < IEEE80211_MAX_RTS_THRESHOLD);
1685
1686 rt2800_register_read(rt2x00dev, TX_RTS_CFG, &reg);
1687 rt2x00_set_field32(&reg, TX_RTS_CFG_RTS_THRES, value);
1688 rt2800_register_write(rt2x00dev, TX_RTS_CFG, reg);
1689
1690 rt2800_register_read(rt2x00dev, CCK_PROT_CFG, &reg);
1691 rt2x00_set_field32(&reg, CCK_PROT_CFG_RTS_TH_EN, enabled);
1692 rt2800_register_write(rt2x00dev, CCK_PROT_CFG, reg);
1693
1694 rt2800_register_read(rt2x00dev, OFDM_PROT_CFG, &reg);
1695 rt2x00_set_field32(&reg, OFDM_PROT_CFG_RTS_TH_EN, enabled);
1696 rt2800_register_write(rt2x00dev, OFDM_PROT_CFG, reg);
1697
1698 rt2800_register_read(rt2x00dev, MM20_PROT_CFG, &reg);
1699 rt2x00_set_field32(&reg, MM20_PROT_CFG_RTS_TH_EN, enabled);
1700 rt2800_register_write(rt2x00dev, MM20_PROT_CFG, reg);
1701
1702 rt2800_register_read(rt2x00dev, MM40_PROT_CFG, &reg);
1703 rt2x00_set_field32(&reg, MM40_PROT_CFG_RTS_TH_EN, enabled);
1704 rt2800_register_write(rt2x00dev, MM40_PROT_CFG, reg);
1705
1706 rt2800_register_read(rt2x00dev, GF20_PROT_CFG, &reg);
1707 rt2x00_set_field32(&reg, GF20_PROT_CFG_RTS_TH_EN, enabled);
1708 rt2800_register_write(rt2x00dev, GF20_PROT_CFG, reg);
1709
1710 rt2800_register_read(rt2x00dev, GF40_PROT_CFG, &reg);
1711 rt2x00_set_field32(&reg, GF40_PROT_CFG_RTS_TH_EN, enabled);
1712 rt2800_register_write(rt2x00dev, GF40_PROT_CFG, reg);
1713
1714 return 0;
1715}
1716
1717static int rt2800_conf_tx(struct ieee80211_hw *hw, u16 queue_idx,
1718 const struct ieee80211_tx_queue_params *params)
1719{
1720 struct rt2x00_dev *rt2x00dev = hw->priv;
1721 struct data_queue *queue;
1722 struct rt2x00_field32 field;
1723 int retval;
1724 u32 reg;
1725 u32 offset;
1726
1727 /*
1728 * First pass the configuration through rt2x00lib, that will
1729 * update the queue settings and validate the input. After that
1730 * we are free to update the registers based on the value
1731 * in the queue parameter.
1732 */
1733 retval = rt2x00mac_conf_tx(hw, queue_idx, params);
1734 if (retval)
1735 return retval;
1736
1737 /*
1738 * We only need to perform additional register initialization
1739 * for WMM queues/
1740 */
1741 if (queue_idx >= 4)
1742 return 0;
1743
1744 queue = rt2x00queue_get_queue(rt2x00dev, queue_idx);
1745
1746 /* Update WMM TXOP register */
1747 offset = WMM_TXOP0_CFG + (sizeof(u32) * (!!(queue_idx & 2)));
1748 field.bit_offset = (queue_idx & 1) * 16;
1749 field.bit_mask = 0xffff << field.bit_offset;
1750
1751 rt2800_register_read(rt2x00dev, offset, &reg);
1752 rt2x00_set_field32(&reg, field, queue->txop);
1753 rt2800_register_write(rt2x00dev, offset, reg);
1754
1755 /* Update WMM registers */
1756 field.bit_offset = queue_idx * 4;
1757 field.bit_mask = 0xf << field.bit_offset;
1758
1759 rt2800_register_read(rt2x00dev, WMM_AIFSN_CFG, &reg);
1760 rt2x00_set_field32(&reg, field, queue->aifs);
1761 rt2800_register_write(rt2x00dev, WMM_AIFSN_CFG, reg);
1762
1763 rt2800_register_read(rt2x00dev, WMM_CWMIN_CFG, &reg);
1764 rt2x00_set_field32(&reg, field, queue->cw_min);
1765 rt2800_register_write(rt2x00dev, WMM_CWMIN_CFG, reg);
1766
1767 rt2800_register_read(rt2x00dev, WMM_CWMAX_CFG, &reg);
1768 rt2x00_set_field32(&reg, field, queue->cw_max);
1769 rt2800_register_write(rt2x00dev, WMM_CWMAX_CFG, reg);
1770
1771 /* Update EDCA registers */
1772 offset = EDCA_AC0_CFG + (sizeof(u32) * queue_idx);
1773
1774 rt2800_register_read(rt2x00dev, offset, &reg);
1775 rt2x00_set_field32(&reg, EDCA_AC0_CFG_TX_OP, queue->txop);
1776 rt2x00_set_field32(&reg, EDCA_AC0_CFG_AIFSN, queue->aifs);
1777 rt2x00_set_field32(&reg, EDCA_AC0_CFG_CWMIN, queue->cw_min);
1778 rt2x00_set_field32(&reg, EDCA_AC0_CFG_CWMAX, queue->cw_max);
1779 rt2800_register_write(rt2x00dev, offset, reg);
1780
1781 return 0;
1782}
1783
1784static u64 rt2800_get_tsf(struct ieee80211_hw *hw)
1785{
1786 struct rt2x00_dev *rt2x00dev = hw->priv;
1787 u64 tsf;
1788 u32 reg;
1789
1790 rt2800_register_read(rt2x00dev, TSF_TIMER_DW1, &reg);
1791 tsf = (u64) rt2x00_get_field32(reg, TSF_TIMER_DW1_HIGH_WORD) << 32;
1792 rt2800_register_read(rt2x00dev, TSF_TIMER_DW0, &reg);
1793 tsf |= rt2x00_get_field32(reg, TSF_TIMER_DW0_LOW_WORD);
1794
1795 return tsf;
1796}
1797
1798const struct ieee80211_ops rt2800_mac80211_ops = {
1799 .tx = rt2x00mac_tx,
1800 .start = rt2x00mac_start,
1801 .stop = rt2x00mac_stop,
1802 .add_interface = rt2x00mac_add_interface,
1803 .remove_interface = rt2x00mac_remove_interface,
1804 .config = rt2x00mac_config,
1805 .configure_filter = rt2x00mac_configure_filter,
1806 .set_tim = rt2x00mac_set_tim,
1807 .set_key = rt2x00mac_set_key,
1808 .get_stats = rt2x00mac_get_stats,
1809 .get_tkip_seq = rt2800_get_tkip_seq,
1810 .set_rts_threshold = rt2800_set_rts_threshold,
1811 .bss_info_changed = rt2x00mac_bss_info_changed,
1812 .conf_tx = rt2800_conf_tx,
1813 .get_tx_stats = rt2x00mac_get_tx_stats,
1814 .get_tsf = rt2800_get_tsf,
1815 .rfkill_poll = rt2x00mac_rfkill_poll,
1816};
1817EXPORT_SYMBOL_GPL(rt2800_mac80211_ops);