rt2800: add rt2800lib (part four)

Code unification.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

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)
 	return 0;
 }
 EXPORT_SYMBOL_GPL(rt2800_init_rfcsr);
+
+/*
+ * IEEE80211 stack callback functions.
+ */
+static void rt2800_get_tkip_seq(struct ieee80211_hw *hw, u8 hw_key_idx,
+				u32 *iv32, u16 *iv16)
+{
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+	struct mac_iveiv_entry iveiv_entry;
+	u32 offset;
+
+	offset = MAC_IVEIV_ENTRY(hw_key_idx);
+	rt2800_register_multiread(rt2x00dev, offset,
+				      &iveiv_entry, sizeof(iveiv_entry));
+
+	memcpy(&iveiv_entry.iv[0], iv16, sizeof(iv16));
+	memcpy(&iveiv_entry.iv[4], iv32, sizeof(iv32));
+}
+
+static int rt2800_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
+{
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+	u32 reg;
+	bool enabled = (value < IEEE80211_MAX_RTS_THRESHOLD);
+
+	rt2800_register_read(rt2x00dev, TX_RTS_CFG, &reg);
+	rt2x00_set_field32(&reg, TX_RTS_CFG_RTS_THRES, value);
+	rt2800_register_write(rt2x00dev, TX_RTS_CFG, reg);
+
+	rt2800_register_read(rt2x00dev, CCK_PROT_CFG, &reg);
+	rt2x00_set_field32(&reg, CCK_PROT_CFG_RTS_TH_EN, enabled);
+	rt2800_register_write(rt2x00dev, CCK_PROT_CFG, reg);
+
+	rt2800_register_read(rt2x00dev, OFDM_PROT_CFG, &reg);
+	rt2x00_set_field32(&reg, OFDM_PROT_CFG_RTS_TH_EN, enabled);
+	rt2800_register_write(rt2x00dev, OFDM_PROT_CFG, reg);
+
+	rt2800_register_read(rt2x00dev, MM20_PROT_CFG, &reg);
+	rt2x00_set_field32(&reg, MM20_PROT_CFG_RTS_TH_EN, enabled);
+	rt2800_register_write(rt2x00dev, MM20_PROT_CFG, reg);
+
+	rt2800_register_read(rt2x00dev, MM40_PROT_CFG, &reg);
+	rt2x00_set_field32(&reg, MM40_PROT_CFG_RTS_TH_EN, enabled);
+	rt2800_register_write(rt2x00dev, MM40_PROT_CFG, reg);
+
+	rt2800_register_read(rt2x00dev, GF20_PROT_CFG, &reg);
+	rt2x00_set_field32(&reg, GF20_PROT_CFG_RTS_TH_EN, enabled);
+	rt2800_register_write(rt2x00dev, GF20_PROT_CFG, reg);
+
+	rt2800_register_read(rt2x00dev, GF40_PROT_CFG, &reg);
+	rt2x00_set_field32(&reg, GF40_PROT_CFG_RTS_TH_EN, enabled);
+	rt2800_register_write(rt2x00dev, GF40_PROT_CFG, reg);
+
+	return 0;
+}
+
+static int rt2800_conf_tx(struct ieee80211_hw *hw, u16 queue_idx,
+			  const struct ieee80211_tx_queue_params *params)
+{
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+	struct data_queue *queue;
+	struct rt2x00_field32 field;
+	int retval;
+	u32 reg;
+	u32 offset;
+
+	/*
+	 * First pass the configuration through rt2x00lib, that will
+	 * update the queue settings and validate the input. After that
+	 * we are free to update the registers based on the value
+	 * in the queue parameter.
+	 */
+	retval = rt2x00mac_conf_tx(hw, queue_idx, params);
+	if (retval)
+		return retval;
+
+	/*
+	 * We only need to perform additional register initialization
+	 * for WMM queues/
+	 */
+	if (queue_idx >= 4)
+		return 0;
+
+	queue = rt2x00queue_get_queue(rt2x00dev, queue_idx);
+
+	/* Update WMM TXOP register */
+	offset = WMM_TXOP0_CFG + (sizeof(u32) * (!!(queue_idx & 2)));
+	field.bit_offset = (queue_idx & 1) * 16;
+	field.bit_mask = 0xffff << field.bit_offset;
+
+	rt2800_register_read(rt2x00dev, offset, &reg);
+	rt2x00_set_field32(&reg, field, queue->txop);
+	rt2800_register_write(rt2x00dev, offset, reg);
+
+	/* Update WMM registers */
+	field.bit_offset = queue_idx * 4;
+	field.bit_mask = 0xf << field.bit_offset;
+
+	rt2800_register_read(rt2x00dev, WMM_AIFSN_CFG, &reg);
+	rt2x00_set_field32(&reg, field, queue->aifs);
+	rt2800_register_write(rt2x00dev, WMM_AIFSN_CFG, reg);
+
+	rt2800_register_read(rt2x00dev, WMM_CWMIN_CFG, &reg);
+	rt2x00_set_field32(&reg, field, queue->cw_min);
+	rt2800_register_write(rt2x00dev, WMM_CWMIN_CFG, reg);
+
+	rt2800_register_read(rt2x00dev, WMM_CWMAX_CFG, &reg);
+	rt2x00_set_field32(&reg, field, queue->cw_max);
+	rt2800_register_write(rt2x00dev, WMM_CWMAX_CFG, reg);
+
+	/* Update EDCA registers */
+	offset = EDCA_AC0_CFG + (sizeof(u32) * queue_idx);
+
+	rt2800_register_read(rt2x00dev, offset, &reg);
+	rt2x00_set_field32(&reg, EDCA_AC0_CFG_TX_OP, queue->txop);
+	rt2x00_set_field32(&reg, EDCA_AC0_CFG_AIFSN, queue->aifs);
+	rt2x00_set_field32(&reg, EDCA_AC0_CFG_CWMIN, queue->cw_min);
+	rt2x00_set_field32(&reg, EDCA_AC0_CFG_CWMAX, queue->cw_max);
+	rt2800_register_write(rt2x00dev, offset, reg);
+
+	return 0;
+}
+
+static u64 rt2800_get_tsf(struct ieee80211_hw *hw)
+{
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+	u64 tsf;
+	u32 reg;
+
+	rt2800_register_read(rt2x00dev, TSF_TIMER_DW1, &reg);
+	tsf = (u64) rt2x00_get_field32(reg, TSF_TIMER_DW1_HIGH_WORD) << 32;
+	rt2800_register_read(rt2x00dev, TSF_TIMER_DW0, &reg);
+	tsf |= rt2x00_get_field32(reg, TSF_TIMER_DW0_LOW_WORD);
+
+	return tsf;
+}
+
+const struct ieee80211_ops rt2800_mac80211_ops = {
+	.tx			= rt2x00mac_tx,
+	.start			= rt2x00mac_start,
+	.stop			= rt2x00mac_stop,
+	.add_interface		= rt2x00mac_add_interface,
+	.remove_interface	= rt2x00mac_remove_interface,
+	.config			= rt2x00mac_config,
+	.configure_filter	= rt2x00mac_configure_filter,
+	.set_tim		= rt2x00mac_set_tim,
+	.set_key		= rt2x00mac_set_key,
+	.get_stats		= rt2x00mac_get_stats,
+	.get_tkip_seq		= rt2800_get_tkip_seq,
+	.set_rts_threshold	= rt2800_set_rts_threshold,
+	.bss_info_changed	= rt2x00mac_bss_info_changed,
+	.conf_tx		= rt2800_conf_tx,
+	.get_tx_stats		= rt2x00mac_get_tx_stats,
+	.get_tsf		= rt2800_get_tsf,
+	.rfkill_poll		= rt2x00mac_rfkill_poll,
+};
+EXPORT_SYMBOL_GPL(rt2800_mac80211_ops);