rtl8187: change rtl8187_dev.c to support RTL8187B (part 2)

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Herton Ronaldo Krzesinski <herton@mandriva.com.br>
Signed-off-by: Hin-Tak Leung <htl10@users.sourceforge.net>
Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 168 insertions, 40 deletions

diff --git a/drivers/net/wireless/rtl8187_dev.c b/drivers/net/wireless/rtl8187_dev.c
index b17f237c9e28..3bc4a1c39258 100644
--- a/drivers/net/wireless/rtl8187_dev.c
+++ b/drivers/net/wireless/rtl8187_dev.c
@@ -155,9 +155,11 @@ static void rtl8187_tx_cb(struct urb *urb)
         struct sk_buff *skb = (struct sk_buff *)urb->context;
         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
         struct ieee80211_hw *hw = info->driver_data[0];
+        struct rtl8187_priv *priv = hw->priv;
 
         usb_free_urb(info->driver_data[1]);
-        skb_pull(skb, sizeof(struct rtl8187_tx_hdr));
+        skb_pull(skb, priv->is_rtl8187b ? sizeof(struct rtl8187b_tx_hdr) :
+                                          sizeof(struct rtl8187_tx_hdr));
         memset(&info->status, 0, sizeof(info->status));
         info->flags |= IEEE80211_TX_STAT_ACK;
         ieee80211_tx_status_irqsafe(hw, skb);
@@ -167,7 +169,8 @@ static int rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
 {
         struct rtl8187_priv *priv = dev->priv;
         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
-        struct rtl8187_tx_hdr *hdr;
+        unsigned int ep;
+        void *buf;
         struct urb *urb;
         __le16 rts_dur = 0;
         u32 flags;
@@ -195,16 +198,47 @@ static int rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
                 flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19;
         }
 
-        hdr = (struct rtl8187_tx_hdr *)skb_push(skb, sizeof(*hdr));
-        hdr->flags = cpu_to_le32(flags);
-        hdr->len = 0;
-        hdr->rts_duration = rts_dur;
-        hdr->retry = cpu_to_le32(info->control.retry_limit << 8);
+        if (!priv->is_rtl8187b) {
+                struct rtl8187_tx_hdr *hdr =
+                        (struct rtl8187_tx_hdr *)skb_push(skb, sizeof(*hdr));
+                hdr->flags = cpu_to_le32(flags);
+                hdr->len = 0;
+                hdr->rts_duration = rts_dur;
+                hdr->retry = cpu_to_le32(info->control.retry_limit << 8);
+                buf = hdr;
+
+                ep = 2;
+        } else {
+                /* fc needs to be calculated before skb_push() */
+                unsigned int epmap[4] = { 6, 7, 5, 4 };
+                struct ieee80211_hdr *tx_hdr =
+                        (struct ieee80211_hdr *)(skb->data);
+                u16 fc = le16_to_cpu(tx_hdr->frame_control);
+
+                struct rtl8187b_tx_hdr *hdr =
+                        (struct rtl8187b_tx_hdr *)skb_push(skb, sizeof(*hdr));
+                struct ieee80211_rate *txrate =
+                        ieee80211_get_tx_rate(dev, info);
+                memset(hdr, 0, sizeof(*hdr));
+                hdr->flags = cpu_to_le32(flags);
+                hdr->rts_duration = rts_dur;
+                hdr->retry = cpu_to_le32(info->control.retry_limit << 8);
+                hdr->tx_duration =
+                        ieee80211_generic_frame_duration(dev, priv->vif,
+                                                         skb->len, txrate);
+                buf = hdr;
+
+                if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT)
+                        ep = 12;
+                else
+                        ep = epmap[skb_get_queue_mapping(skb)];
+        }
 
         info->driver_data[0] = dev;
         info->driver_data[1] = urb;
-        usb_fill_bulk_urb(urb, priv->udev, usb_sndbulkpipe(priv->udev, 2),
-                          hdr, skb->len, rtl8187_tx_cb, skb);
+
+        usb_fill_bulk_urb(urb, priv->udev, usb_sndbulkpipe(priv->udev, ep),
+                          buf, skb->len, rtl8187_tx_cb, skb);
         rc = usb_submit_urb(urb, GFP_ATOMIC);
         if (rc < 0) {
                 usb_free_urb(urb);
@@ -220,7 +254,6 @@ static void rtl8187_rx_cb(struct urb *urb)
         struct rtl8187_rx_info *info = (struct rtl8187_rx_info *)skb->cb;
         struct ieee80211_hw *dev = info->dev;
         struct rtl8187_priv *priv = dev->priv;
-        struct rtl8187_rx_hdr *hdr;
         struct ieee80211_rx_status rx_status = { 0 };
         int rate, signal;
         u32 flags;
@@ -241,11 +274,33 @@ static void rtl8187_rx_cb(struct urb *urb)
         }
 
         skb_put(skb, urb->actual_length);
-        hdr = (struct rtl8187_rx_hdr *)(skb_tail_pointer(skb) - sizeof(*hdr));
-        flags = le32_to_cpu(hdr->flags);
-        skb_trim(skb, flags & 0x0FFF);
+        if (!priv->is_rtl8187b) {
+                struct rtl8187_rx_hdr *hdr =
+                        (typeof(hdr))(skb_tail_pointer(skb) - sizeof(*hdr));
+                flags = le32_to_cpu(hdr->flags);
+                signal = hdr->signal & 0x7f;
+                rx_status.antenna = (hdr->signal >> 7) & 1;
+                rx_status.signal = signal;
+                rx_status.noise = hdr->noise;
+                rx_status.mactime = le64_to_cpu(hdr->mac_time);
+                priv->signal = signal;
+                priv->quality = signal;
+                priv->noise = hdr->noise;
+        } else {
+                struct rtl8187b_rx_hdr *hdr =
+                        (typeof(hdr))(skb_tail_pointer(skb) - sizeof(*hdr));
+                flags = le32_to_cpu(hdr->flags);
+                signal = hdr->agc >> 1;
+                rx_status.antenna = (hdr->signal >> 7) & 1;
+                rx_status.signal = 64 - min(hdr->noise, (u8)64);
+                rx_status.noise = hdr->noise;
+                rx_status.mactime = le64_to_cpu(hdr->mac_time);
+                priv->signal = hdr->signal;
+                priv->quality = hdr->agc >> 1;
+                priv->noise = hdr->noise;
+        }
 
-        signal = hdr->agc >> 1;
+        skb_trim(skb, flags & 0x0FFF);
         rate = (flags >> 20) & 0xF;
         if (rate > 3) { /* OFDM rate */
                 if (signal > 90)
@@ -261,13 +316,11 @@ static void rtl8187_rx_cb(struct urb *urb)
                 signal = 95 - signal;
         }
 
-        rx_status.antenna = (hdr->signal >> 7) & 1;
-        rx_status.qual = 64 - min(hdr->noise, (u8)64);
+        rx_status.qual = priv->quality;
         rx_status.signal = signal;
         rx_status.rate_idx = rate;
         rx_status.freq = dev->conf.channel->center_freq;
         rx_status.band = dev->conf.channel->band;
-        rx_status.mactime = le64_to_cpu(hdr->mac_time);
         rx_status.flag |= RX_FLAG_TSFT;
         if (flags & (1 << 13))
                 rx_status.flag |= RX_FLAG_FAILED_FCS_CRC;
@@ -307,7 +360,8 @@ static int rtl8187_init_urbs(struct ieee80211_hw *dev)
                         break;
                 }
                 usb_fill_bulk_urb(entry, priv->udev,
-                                  usb_rcvbulkpipe(priv->udev, 1),
+                                  usb_rcvbulkpipe(priv->udev,
+                                  priv->is_rtl8187b ? 3 : 1),
                                   skb_tail_pointer(skb),
                                   RTL8187_MAX_RX, rtl8187_rx_cb, skb);
                 info = (struct rtl8187_rx_info *)skb->cb;
@@ -786,18 +840,20 @@ static int rtl8187_config(struct ieee80211_hw *dev, struct ieee80211_conf *conf)
         msleep(10);
         rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg);
 
-        rtl818x_iowrite8(priv, &priv->map->SIFS, 0x22);
-
-        if (conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME) {
-                rtl818x_iowrite8(priv, &priv->map->SLOT, 0x9);
-                rtl818x_iowrite8(priv, &priv->map->DIFS, 0x14);
-                rtl818x_iowrite8(priv, &priv->map->EIFS, 91 - 0x14);
-                rtl818x_iowrite8(priv, &priv->map->CW_VAL, 0x73);
-        } else {
-                rtl818x_iowrite8(priv, &priv->map->SLOT, 0x14);
-                rtl818x_iowrite8(priv, &priv->map->DIFS, 0x24);
-                rtl818x_iowrite8(priv, &priv->map->EIFS, 91 - 0x24);
-                rtl818x_iowrite8(priv, &priv->map->CW_VAL, 0xa5);
+        if (!priv->is_rtl8187b) {
+                rtl818x_iowrite8(priv, &priv->map->SIFS, 0x22);
+
+                if (conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME) {
+                        rtl818x_iowrite8(priv, &priv->map->SLOT, 0x9);
+                        rtl818x_iowrite8(priv, &priv->map->DIFS, 0x14);
+                        rtl818x_iowrite8(priv, &priv->map->EIFS, 91 - 0x14);
+                        rtl818x_iowrite8(priv, &priv->map->CW_VAL, 0x73);
+                } else {
+                        rtl818x_iowrite8(priv, &priv->map->SLOT, 0x14);
+                        rtl818x_iowrite8(priv, &priv->map->DIFS, 0x24);
+                        rtl818x_iowrite8(priv, &priv->map->EIFS, 91 - 0x24);
+                        rtl818x_iowrite8(priv, &priv->map->CW_VAL, 0xa5);
+                }
         }
 
         rtl818x_iowrite16(priv, &priv->map->ATIM_WND, 2);
@@ -813,14 +869,20 @@ static int rtl8187_config_interface(struct ieee80211_hw *dev,
 {
         struct rtl8187_priv *priv = dev->priv;
         int i;
+        u8 reg;
 
         for (i = 0; i < ETH_ALEN; i++)
                 rtl818x_iowrite8(priv, &priv->map->BSSID[i], conf->bssid[i]);
 
-        if (is_valid_ether_addr(conf->bssid))
-                rtl818x_iowrite8(priv, &priv->map->MSR, RTL818X_MSR_INFRA);
-        else
-                rtl818x_iowrite8(priv, &priv->map->MSR, RTL818X_MSR_NO_LINK);
+        if (is_valid_ether_addr(conf->bssid)) {
+                reg = RTL818X_MSR_INFRA;
+                if (priv->is_rtl8187b)
+                        reg |= RTL818X_MSR_ENEDCA;
+                rtl818x_iowrite8(priv, &priv->map->MSR, reg);
+        } else {
+                reg = RTL818X_MSR_NO_LINK;
+                rtl818x_iowrite8(priv, &priv->map->MSR, reg);
+        }
 
         return 0;
 }
@@ -907,6 +969,7 @@ static int __devinit rtl8187_probe(struct usb_interface *intf,
         struct rtl8187_priv *priv;
         struct eeprom_93cx6 eeprom;
         struct ieee80211_channel *channel;
+        const char *chip_name;
         u16 txpwr, reg;
         int err, i;
         DECLARE_MAC_BUF(mac);
@@ -918,6 +981,8 @@ static int __devinit rtl8187_probe(struct usb_interface *intf,
         }
 
         priv = dev->priv;
+        priv->is_rtl8187b = (id->driver_info == DEVICE_RTL8187B) ||
+                            !memcmp(udev->product, "RTL8187B", 8);
 
         SET_IEEE80211_DEV(dev, &intf->dev);
         usb_set_intfdata(intf, dev);
@@ -946,8 +1011,13 @@ static int __devinit rtl8187_probe(struct usb_interface *intf,
         dev->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
                      IEEE80211_HW_RX_INCLUDES_FCS |
                      IEEE80211_HW_SIGNAL_UNSPEC;
-        dev->extra_tx_headroom = sizeof(struct rtl8187_tx_hdr);
-        dev->queues = 1;
+        dev->extra_tx_headroom = (!priv->is_rtl8187b) ?
+                                  sizeof(struct rtl8187_tx_hdr) :
+                                  sizeof(struct rtl8187b_tx_hdr);
+        if (!priv->is_rtl8187b)
+                dev->queues = 1;
+        else
+                dev->queues = 4;
         dev->max_signal = 65;
 
         eeprom.data = dev;
@@ -982,10 +1052,24 @@ static int __devinit rtl8187_probe(struct usb_interface *intf,
                 (*channel++).hw_value = txpwr & 0xFF;
                 (*channel++).hw_value = txpwr >> 8;
         }
-        for (i = 0; i < 2; i++) {
-                eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_6 + i,
+        if (!priv->is_rtl8187b) {
+                for (i = 0; i < 2; i++) {
+                        eeprom_93cx6_read(&eeprom,
+                                          RTL8187_EEPROM_TXPWR_CHAN_6 + i,
+                                          &txpwr);
+                        (*channel++).hw_value = txpwr & 0xFF;
+                        (*channel++).hw_value = txpwr >> 8;
+                }
+        } else {
+                eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_6,
                                   &txpwr);
                 (*channel++).hw_value = txpwr & 0xFF;
+
+                eeprom_93cx6_read(&eeprom, 0x0A, &txpwr);
+                (*channel++).hw_value = txpwr & 0xFF;
+
+                eeprom_93cx6_read(&eeprom, 0x1C, &txpwr);
+                (*channel++).hw_value = txpwr & 0xFF;
                 (*channel++).hw_value = txpwr >> 8;
         }
 
@@ -1001,6 +1085,50 @@ static int __devinit rtl8187_probe(struct usb_interface *intf,
         rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg);
         rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
 
+        if (!priv->is_rtl8187b) {
+                u32 reg32;
+                reg32 = rtl818x_ioread32(priv, &priv->map->TX_CONF);
+                reg32 &= RTL818X_TX_CONF_HWVER_MASK;
+                switch (reg32) {
+                case RTL818X_TX_CONF_R8187vD_1:
+                case RTL818X_TX_CONF_R8187vD_2:
+                        chip_name = "RTL8187vD";
+                        break;
+                default:
+                        chip_name = "RTL8187vB (default)";
+                }
+       } else {
+                printk(KERN_WARNING "rtl8187: 8187B chip detected. Support "
+                        "is EXPERIMENTAL, and could damage your\n"
+                        "         hardware, use at your own risk\n");
+                /*
+                 * Force USB request to write radio registers for 8187B, Realtek
+                 * only uses it in their sources
+                 */
+                /*if (priv->asic_rev == 0) {
+                        printk(KERN_WARNING "rtl8187: Forcing use of USB "
+                               "requests to write to radio registers\n");
+                        priv->asic_rev = 1;
+                }*/
+                switch (rtl818x_ioread8(priv, (u8 *)0xFFE1)) {
+                case RTL818X_R8187B_B:
+                        chip_name = "RTL8187BvB";
+                        priv->hw_rev = RTL8187BvB;
+                        break;
+                case RTL818X_R8187B_D:
+                        chip_name = "RTL8187BvD";
+                        priv->hw_rev = RTL8187BvD;
+                        break;
+                case RTL818X_R8187B_E:
+                        chip_name = "RTL8187BvE";
+                        priv->hw_rev = RTL8187BvE;
+                        break;
+                default:
+                        chip_name = "RTL8187BvB (default)";
+                        priv->hw_rev = RTL8187BvB;
+                }
+        }
+
         priv->rf = rtl8187_detect_rf(dev);
 
         err = ieee80211_register_hw(dev);
@@ -1009,9 +1137,9 @@ static int __devinit rtl8187_probe(struct usb_interface *intf,
                 goto err_free_dev;
         }
 
-        printk(KERN_INFO "%s: hwaddr %s, rtl8187 V%d + %s\n",
+        printk(KERN_INFO "%s: hwaddr %s, %s V%d + %s\n",
                wiphy_name(dev->wiphy), print_mac(mac, dev->wiphy->perm_addr),
-               priv->asic_rev, priv->rf->name);
+               chip_name, priv->asic_rev, priv->rf->name);
 
         return 0;