cfg802154: introduce wpan phy flags

This patch introduce a flag property for the wpan phy structure.
The current flag settings in ieee802154_hw are accessable in mac802154
layer only which is okay for flags which indicates MAC handling which
are done by phy. For real PHY layer settings like cca mode, transmit
power, cca energy detection level.

The difference between these flags are that the MAC handling flags are
only handled in mac802154/HardMac layer e.g. on an interface up. The phy
settings are direct netlink calls from nl802154 into the driver layer
and the nl802154 need to have a chance to check if the driver supports
this handling before sending to the next layer.

We also check now on PHY flags while dumping and setting pib attributes.
In comparing with MIB attributes the 802.15.4 gives us an default value
which we assume when a transceiver implement less functionality. In case
of MIB settings the nl802154 layer doesn't need to check on the
ieee802154_hw flags then.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

1 files changed, 16 insertions, 0 deletions

diff --git a/include/net/cfg802154.h b/include/net/cfg802154.h
index 37abc1603285..a12c6c5247e9 100644
--- a/include/net/cfg802154.h
+++ b/include/net/cfg802154.h
@@ -106,6 +106,20 @@ wpan_phy_cca_cmp(const struct wpan_phy_cca *a, const struct wpan_phy_cca *b)
         return true;
 }
 
+/**
+ * @WPAN_PHY_FLAG_TRANSMIT_POWER: Indicates that transceiver will support
+ *      transmit power setting.
+ * @WPAN_PHY_FLAG_CCA_ED_LEVEL: Indicates that transceiver will support cca ed
+ *      level setting.
+ * @WPAN_PHY_FLAG_CCA_MODE: Indicates that transceiver will support cca mode
+ *      setting.
+ */
+enum wpan_phy_flags {
+        WPAN_PHY_FLAG_TXPOWER           = BIT(1),
+        WPAN_PHY_FLAG_CCA_ED_LEVEL      = BIT(2),
+        WPAN_PHY_FLAG_CCA_MODE          = BIT(3),
+};
+
 struct wpan_phy {
         struct mutex pib_lock;
 
@@ -117,6 +131,8 @@ struct wpan_phy {
          */
         const void *privid;
 
+        u32 flags;
+
         /*
          * This is a PIB according to 802.15.4-2011.
          * We do not provide timing-related variables, as they