rtl8180: add rtl8187se HW initialization

This patch adds few functions that initializes extra stuff that
is present only in rtl8187se HW, and it modify the existing
HW initialization function where necessary

Signed-off-by: Andrea Merello <andrea.merello@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 159 insertions, 9 deletions

diff --git a/drivers/net/wireless/rtl818x/rtl8180/dev.c b/drivers/net/wireless/rtl818x/rtl8180/dev.c
index 1c4a1485f4b..80618525ac7 100644
--- a/drivers/net/wireless/rtl818x/rtl8180/dev.c
+++ b/drivers/net/wireless/rtl818x/rtl8180/dev.c
@@ -578,6 +578,75 @@ void rtl8180_set_anaparam(struct rtl8180_priv *priv, u32 anaparam)
 	rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
 }
 
+static void rtl8187se_mac_config(struct ieee80211_hw *dev)
+{
+	struct rtl8180_priv *priv = dev->priv;
+	u8 reg;
+
+	rtl818x_iowrite32(priv, REG_ADDR4(0x1F0), 0);
+	rtl818x_ioread32(priv, REG_ADDR4(0x1F0));
+	rtl818x_iowrite32(priv, REG_ADDR4(0x1F4), 0);
+	rtl818x_ioread32(priv, REG_ADDR4(0x1F4));
+	rtl818x_iowrite8(priv, REG_ADDR1(0x1F8), 0);
+	rtl818x_ioread8(priv, REG_ADDR1(0x1F8));
+	/* Enable DA10 TX power saving */
+	reg = rtl818x_ioread8(priv, &priv->map->PHY_PR);
+	rtl818x_iowrite8(priv, &priv->map->PHY_PR, reg | 0x04);
+	/* Power */
+	rtl818x_iowrite16(priv, PI_DATA_REG, 0x1000);
+	rtl818x_iowrite16(priv, SI_DATA_REG, 0x1000);
+	/* AFE - default to power ON */
+	rtl818x_iowrite16(priv, REG_ADDR2(0x370), 0x0560);
+	rtl818x_iowrite16(priv, REG_ADDR2(0x372), 0x0560);
+	rtl818x_iowrite16(priv, REG_ADDR2(0x374), 0x0DA4);
+	rtl818x_iowrite16(priv, REG_ADDR2(0x376), 0x0DA4);
+	rtl818x_iowrite16(priv, REG_ADDR2(0x378), 0x0560);
+	rtl818x_iowrite16(priv, REG_ADDR2(0x37A), 0x0560);
+	rtl818x_iowrite16(priv, REG_ADDR2(0x37C), 0x00EC);
+	rtl818x_iowrite16(priv, REG_ADDR2(0x37E), 0x00EC);
+	rtl818x_iowrite8(priv, REG_ADDR1(0x24E), 0x01);
+	/* unknown, needed for suspend to RAM resume */
+	rtl818x_iowrite8(priv, REG_ADDR1(0x0A), 0x72);
+}
+
+static void rtl8187se_set_antenna_config(struct ieee80211_hw *dev, u8 def_ant,
+					 bool diversity)
+{
+	struct rtl8180_priv *priv = dev->priv;
+
+	rtl8225_write_phy_cck(dev, 0x0C, 0x09);
+	if (diversity) {
+		if (def_ant == 1) {
+			rtl818x_iowrite8(priv, &priv->map->TX_ANTENNA, 0x00);
+			rtl8225_write_phy_cck(dev, 0x11, 0xBB);
+			rtl8225_write_phy_cck(dev, 0x01, 0xC7);
+			rtl8225_write_phy_ofdm(dev, 0x0D, 0x54);
+			rtl8225_write_phy_ofdm(dev, 0x18, 0xB2);
+		} else { /* main antenna */
+			rtl818x_iowrite8(priv, &priv->map->TX_ANTENNA, 0x03);
+			rtl8225_write_phy_cck(dev, 0x11, 0x9B);
+			rtl8225_write_phy_cck(dev, 0x01, 0xC7);
+			rtl8225_write_phy_ofdm(dev, 0x0D, 0x5C);
+			rtl8225_write_phy_ofdm(dev, 0x18, 0xB2);
+		}
+	} else { /* disable antenna diversity */
+		if (def_ant == 1) {
+			rtl818x_iowrite8(priv, &priv->map->TX_ANTENNA, 0x00);
+			rtl8225_write_phy_cck(dev, 0x11, 0xBB);
+			rtl8225_write_phy_cck(dev, 0x01, 0x47);
+			rtl8225_write_phy_ofdm(dev, 0x0D, 0x54);
+			rtl8225_write_phy_ofdm(dev, 0x18, 0x32);
+		} else { /* main antenna */
+			rtl818x_iowrite8(priv, &priv->map->TX_ANTENNA, 0x03);
+			rtl8225_write_phy_cck(dev, 0x11, 0x9B);
+			rtl8225_write_phy_cck(dev, 0x01, 0x47);
+			rtl8225_write_phy_ofdm(dev, 0x0D, 0x5C);
+			rtl8225_write_phy_ofdm(dev, 0x18, 0x32);
+		}
+	}
+	/* priv->curr_ant = def_ant; */
+}
+
 static void rtl8180_int_enable(struct ieee80211_hw *dev)
 {
 	struct rtl8180_priv *priv = dev->priv;
@@ -666,6 +735,7 @@ static int rtl8180_init_hw(struct ieee80211_hw *dev)
 {
 	struct rtl8180_priv *priv = dev->priv;
 	u16 reg;
+	u32 reg32;
 
 	rtl818x_iowrite8(priv, &priv->map->CMD, 0);
 	rtl818x_ioread8(priv, &priv->map->CMD);
@@ -696,14 +766,36 @@ static int rtl8180_init_hw(struct ieee80211_hw *dev)
 		rtl8180_config_cardbus(dev);
 	}
 
-	rtl818x_iowrite8(priv, &priv->map->MSR, 0);
+	if (priv->chip_family == RTL818X_CHIP_FAMILY_RTL8187SE)
+		rtl818x_iowrite8(priv, &priv->map->MSR, RTL818X_MSR_ENEDCA);
+	else
+		rtl818x_iowrite8(priv, &priv->map->MSR, 0);
 
 	if (priv->chip_family == RTL818X_CHIP_FAMILY_RTL8180)
 		rtl8180_set_anaparam(priv, priv->anaparam);
 
 	rtl818x_iowrite32(priv, &priv->map->RDSAR, priv->rx_ring_dma);
-	rtl818x_iowrite32(priv, &priv->map->TBDA, priv->tx_ring[1].dma);
-	rtl818x_iowrite32(priv, &priv->map->TLPDA, priv->tx_ring[0].dma);
+	/* mac80211 queue have higher prio for lower index. The last queue
+	 * (that mac80211 is not aware of) is reserved for beacons (and have
+	 * the highest priority on the NIC)
+	 */
+	if (priv->chip_family != RTL818X_CHIP_FAMILY_RTL8187SE) {
+		rtl818x_iowrite32(priv, &priv->map->TBDA,
+				  priv->tx_ring[1].dma);
+		rtl818x_iowrite32(priv, &priv->map->TLPDA,
+				  priv->tx_ring[0].dma);
+	} else {
+		rtl818x_iowrite32(priv, &priv->map->TBDA,
+				  priv->tx_ring[4].dma);
+		rtl818x_iowrite32(priv, &priv->map->TVODA,
+				  priv->tx_ring[0].dma);
+		rtl818x_iowrite32(priv, &priv->map->TVIDA,
+				  priv->tx_ring[1].dma);
+		rtl818x_iowrite32(priv, &priv->map->TBEDA,
+				  priv->tx_ring[2].dma);
+		rtl818x_iowrite32(priv, &priv->map->TBKDA,
+				  priv->tx_ring[3].dma);
+	}
 
 	/* TODO: necessary? specs indicate not */
 	rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
@@ -724,7 +816,14 @@ static int rtl8180_init_hw(struct ieee80211_hw *dev)
 	if (priv->chip_family != RTL818X_CHIP_FAMILY_RTL8180) {
 		rtl818x_iowrite8(priv, &priv->map->WPA_CONF, 0);
 		rtl818x_iowrite8(priv, &priv->map->RATE_FALLBACK, 0x81);
+	} else {
+		rtl818x_iowrite8(priv, &priv->map->SECURITY, 0);
+
+		rtl818x_iowrite8(priv, &priv->map->PHY_DELAY, 0x6);
+		rtl818x_iowrite8(priv, &priv->map->CARRIER_SENSE_COUNTER, 0x4C);
+	}
 
+	if (priv->chip_family == RTL818X_CHIP_FAMILY_RTL8185) {
 		/* TODO: set ClkRun enable? necessary? */
 		reg = rtl818x_ioread8(priv, &priv->map->GP_ENABLE);
 		rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, reg & ~(1 << 6));
@@ -732,11 +831,55 @@ static int rtl8180_init_hw(struct ieee80211_hw *dev)
 		reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
 		rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg | (1 << 2));
 		rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
-	} else {
-		rtl818x_iowrite8(priv, &priv->map->SECURITY, 0);
+	}
 
-		rtl818x_iowrite8(priv, &priv->map->PHY_DELAY, 0x6);
-		rtl818x_iowrite8(priv, &priv->map->CARRIER_SENSE_COUNTER, 0x4C);
+	if (priv->chip_family == RTL818X_CHIP_FAMILY_RTL8187SE) {
+
+		/* the set auto rate fallback bitmask from 1M to 54 Mb/s */
+		rtl818x_iowrite16(priv, ARFR, 0xFFF);
+		rtl818x_ioread16(priv, ARFR);
+
+		/* stop unused queus (no dma alloc) */
+		rtl818x_iowrite8(priv, &priv->map->TPPOLL_STOP,
+			       RTL818x_TPPOLL_STOP_MG | RTL818x_TPPOLL_STOP_HI);
+
+		rtl818x_iowrite8(priv, &priv->map->ACM_CONTROL, 0x00);
+		rtl818x_iowrite16(priv, &priv->map->TID_AC_MAP, 0xFA50);
+
+		rtl818x_iowrite16(priv, &priv->map->INT_MIG, 0);
+
+		/* some black magic here.. */
+		rtl8187se_mac_config(dev);
+
+		rtl818x_iowrite16(priv, RFSW_CTRL, 0x569A);
+		rtl818x_ioread16(priv, RFSW_CTRL);
+
+		rtl8180_set_anaparam(priv, RTL8225SE_ANAPARAM_ON);
+		rtl8180_set_anaparam2(priv, RTL8225SE_ANAPARAM2_ON);
+		rtl8180_set_anaparam3(priv, RTL8225SE_ANAPARAM3);
+
+
+		rtl818x_iowrite8(priv, &priv->map->CONFIG5,
+			    rtl818x_ioread8(priv, &priv->map->CONFIG5) & 0x7F);
+
+		/*probably this switch led on */
+		rtl818x_iowrite8(priv, &priv->map->PGSELECT,
+			    rtl818x_ioread8(priv, &priv->map->PGSELECT) | 0x08);
+
+		rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, 0x0480);
+		rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x1BFF);
+		rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0x2488);
+
+		rtl818x_iowrite32(priv, &priv->map->RF_TIMING, 0x4003);
+
+		/* the reference code mac hardcode table write
+		 * this reg by doing byte-wide accesses.
+		 * It does it just for lowest and highest byte..
+		 */
+		reg32 = rtl818x_ioread32(priv, &priv->map->RF_PARA);
+		reg32 &= 0x00ffff00;
+		reg32 |= 0xb8000054;
+		rtl818x_iowrite32(priv, &priv->map->RF_PARA, reg32);
 	}
 
 	priv->rf->init(dev);
@@ -752,6 +895,10 @@ static int rtl8180_init_hw(struct ieee80211_hw *dev)
 	else
 		rtl8180_conf_basic_rates(dev, 0x1f3);
 
+	if (priv->chip_family == RTL818X_CHIP_FAMILY_RTL8187SE)
+		rtl8187se_set_antenna_config(dev,
+					     priv->antenna_diversity_default,
+					     priv->antenna_diversity_en);
 	return 0;
 }
 
@@ -926,11 +1073,13 @@ static int rtl8180_start(struct ieee80211_hw *dev)
 
 	if (priv->chip_family == RTL818X_CHIP_FAMILY_RTL8185)
 		reg |= RTL818X_RX_CONF_CSDM1 | RTL818X_RX_CONF_CSDM2;
-	else {
+	else if (priv->chip_family == RTL818X_CHIP_FAMILY_RTL8180) {
 		reg |= (priv->rfparam & RF_PARAM_CARRIERSENSE1)
 			? RTL818X_RX_CONF_CSDM1 : 0;
 		reg |= (priv->rfparam & RF_PARAM_CARRIERSENSE2)
 			? RTL818X_RX_CONF_CSDM2 : 0;
+	} else {
+		reg &= ~(RTL818X_RX_CONF_CSDM1 | RTL818X_RX_CONF_CSDM2);
 	}
 
 	priv->rx_conf = reg;
@@ -968,7 +1117,8 @@ static int rtl8180_start(struct ieee80211_hw *dev)
 	reg |= (6 << 21 /* MAX TX DMA */) |
 	       RTL818X_TX_CONF_NO_ICV;
 
-
+	if (priv->chip_family == RTL818X_CHIP_FAMILY_RTL8187SE)
+		reg |= 1<<30;  /*  "duration procedure mode" */
 
 	if (priv->chip_family != RTL818X_CHIP_FAMILY_RTL8180)
 		reg &= ~RTL818X_TX_CONF_PROBE_DTS;