[package] mac80211: add antenna control api for b43

[openwrt.git] / package / mac80211 / patches / 820-b43-add-antenna-control.patch

diff --git a/package/mac80211/patches/820-b43-add-antenna-control.patch b/package/mac80211/patches/820-b43-add-antenna-control.patch
new file mode 100644 (file)
index 0000000..fd80824
--- /dev/null
+++ b/package/mac80211/patches/820-b43-add-antenna-control.patch
@@ -0,0 +1,131 @@
+--- a/drivers/net/wireless/b43/main.c
++++ b/drivers/net/wireless/b43/main.c
+@@ -1535,7 +1535,7 @@ static void b43_write_beacon_template(st
+                                 len, ram_offset, shm_size_offset, rate);
+ 
+       /* Write the PHY TX control parameters. */
+-      antenna = B43_ANTENNA_DEFAULT;
++      antenna = dev->tx_antenna;
+       antenna = b43_antenna_to_phyctl(antenna);
+       ctl = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL);
+       /* We can't send beacons with short preamble. Would get PHY errors. */
+@@ -3052,8 +3052,8 @@ static int b43_chip_init(struct b43_wlde
+ 
+       /* Select the antennae */
+       if (phy->ops->set_rx_antenna)
+-              phy->ops->set_rx_antenna(dev, B43_ANTENNA_DEFAULT);
+-      b43_mgmtframe_txantenna(dev, B43_ANTENNA_DEFAULT);
++              phy->ops->set_rx_antenna(dev, dev->rx_antenna);
++      b43_mgmtframe_txantenna(dev, dev->tx_antenna);
+ 
+       if (phy->type == B43_PHYTYPE_B) {
+               value16 = b43_read16(dev, 0x005E);
+@@ -3782,7 +3782,6 @@ static int b43_op_config(struct ieee8021
+       struct b43_wldev *dev;
+       struct b43_phy *phy;
+       struct ieee80211_conf *conf = &hw->conf;
+-      int antenna;
+       int err = 0;
+       bool reload_bss = false;
+ 
+@@ -3836,11 +3835,9 @@ static int b43_op_config(struct ieee8021
+       }
+ 
+       /* Antennas for RX and management frame TX. */
+-      antenna = B43_ANTENNA_DEFAULT;
+-      b43_mgmtframe_txantenna(dev, antenna);
+-      antenna = B43_ANTENNA_DEFAULT;
++      b43_mgmtframe_txantenna(dev, dev->tx_antenna);
+       if (phy->ops->set_rx_antenna)
+-              phy->ops->set_rx_antenna(dev, antenna);
++              phy->ops->set_rx_antenna(dev, dev->rx_antenna);
+ 
+       if (wl->radio_enabled != phy->radio_on) {
+               if (wl->radio_enabled) {
+@@ -4910,6 +4907,47 @@ static int b43_op_get_survey(struct ieee
+       return 0;
+ }
+ 
++static int b43_op_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
++{
++      struct b43_wl *wl = hw_to_b43_wl(hw);
++      struct b43_wldev *dev = wl->current_dev;
++
++      if (tx_ant == 1 && rx_ant == 1) {
++              dev->tx_antenna = B43_ANTENNA0;
++              dev->rx_antenna = B43_ANTENNA0;
++      }
++      else if (tx_ant == 2 && rx_ant == 2) {
++              dev->tx_antenna = B43_ANTENNA1;
++              dev->rx_antenna = B43_ANTENNA1;
++      }
++      else if ((tx_ant & 3) == 3 && (rx_ant & 3) == 3) {
++              dev->tx_antenna = B43_ANTENNA_DEFAULT;
++              dev->rx_antenna = B43_ANTENNA_DEFAULT;
++      }
++      else {
++              return -EINVAL;
++      }
++
++      return 0;
++}
++
++
++static int b43_op_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant)
++{
++      struct b43_wl *wl = hw_to_b43_wl(hw);
++      struct b43_wldev *dev = wl->current_dev;
++
++      switch (dev->tx_antenna) {
++      case B43_ANTENNA0:
++              *tx_ant = 1; *rx_ant = 1; break;
++      case B43_ANTENNA1:
++              *tx_ant = 2; *rx_ant = 2; break;
++      case B43_ANTENNA_DEFAULT:
++              *tx_ant = 3; *rx_ant = 3; break;
++      }
++      return 0;
++}
++
+ static const struct ieee80211_ops b43_hw_ops = {
+       .tx                     = b43_op_tx,
+       .conf_tx                = b43_op_conf_tx,
+@@ -4931,6 +4969,8 @@ static const struct ieee80211_ops b43_hw
+       .sw_scan_complete       = b43_op_sw_scan_complete_notifier,
+       .get_survey             = b43_op_get_survey,
+       .rfkill_poll            = b43_rfkill_poll,
++      .set_antenna            = b43_op_set_antenna,
++      .get_antenna            = b43_op_get_antenna,
+ };
+ 
+ /* Hard-reset the chip. Do not call this directly.
+@@ -5177,6 +5217,8 @@ static int b43_one_core_attach(struct b4
+       if (!wldev)
+               goto out;
+ 
++      wldev->rx_antenna = B43_ANTENNA_DEFAULT;
++      wldev->tx_antenna = B43_ANTENNA_DEFAULT;
+       wldev->use_pio = b43_modparam_pio;
+       wldev->dev = dev;
+       wldev->wl = wl;
+@@ -5264,6 +5306,9 @@ static struct b43_wl *b43_wireless_init(
+               BIT(NL80211_IFTYPE_WDS) |
+               BIT(NL80211_IFTYPE_ADHOC);
+ 
++      hw->wiphy->available_antennas_rx = 0x3;
++      hw->wiphy->available_antennas_tx = 0x3;
++
+       hw->queues = modparam_qos ? 4 : 1;
+       wl->mac80211_initially_registered_queues = hw->queues;
+       hw->max_rates = 2;
+--- a/drivers/net/wireless/b43/b43.h
++++ b/drivers/net/wireless/b43/b43.h
+@@ -792,6 +792,8 @@ struct b43_wldev {
+       bool hwcrypto_enabled;          /* TRUE, if HW crypto acceleration is enabled. */
+       bool use_pio;                   /* TRUE if next init should use PIO */
+       int gpiomask;                   /* GPIO LED mask as a module parameter */
++      int rx_antenna;                 /* Used RX antenna (B43_ANTENNAxxx) */
++      int tx_antenna;                 /* Used TX antenna (B43_ANTENNAxxx) */
+ 
+       /* PHY/Radio device. */
+       struct b43_phy phy;