From b69644c1c72e179738dd5c7e52e99d8550189472 Mon Sep 17 00:00:00 2001 From: Alexander Aring Date: Wed, 27 May 2015 13:42:10 +0200 Subject: [PATCH] nl802154: add support to set cca ed level This patch adds support for setting the current cca ed level value over nl802154. Signed-off-by: Alexander Aring Reviewed-by: Varka Bhadram Signed-off-by: Marcel Holtmann --- include/net/cfg802154.h | 1 + net/ieee802154/nl802154.c | 30 ++++++++++++++++++++++++++++++ net/ieee802154/rdev-ops.h | 11 +++++++++++ net/ieee802154/trace.h | 15 +++++++++++++++ net/mac802154/cfg.c | 19 +++++++++++++++++++ 5 files changed, 76 insertions(+) diff --git a/include/net/cfg802154.h b/include/net/cfg802154.h index 2e3bb012c2ff..290a9a69af07 100644 --- a/include/net/cfg802154.h +++ b/include/net/cfg802154.h @@ -44,6 +44,7 @@ struct cfg802154_ops { int (*set_channel)(struct wpan_phy *wpan_phy, u8 page, u8 channel); int (*set_cca_mode)(struct wpan_phy *wpan_phy, const struct wpan_phy_cca *cca); + int (*set_cca_ed_level)(struct wpan_phy *wpan_phy, s32 ed_level); int (*set_tx_power)(struct wpan_phy *wpan_phy, s32 power); int (*set_pan_id)(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, __le16 pan_id); diff --git a/net/ieee802154/nl802154.c b/net/ieee802154/nl802154.c index a89d9d024126..7dbb1f4ce7df 100644 --- a/net/ieee802154/nl802154.c +++ b/net/ieee802154/nl802154.c @@ -790,6 +790,28 @@ static int nl802154_set_cca_mode(struct sk_buff *skb, struct genl_info *info) return rdev_set_cca_mode(rdev, &cca); } +static int nl802154_set_cca_ed_level(struct sk_buff *skb, struct genl_info *info) +{ + struct cfg802154_registered_device *rdev = info->user_ptr[0]; + s32 ed_level; + int i; + + if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_CCA_ED_LEVEL)) + return -EOPNOTSUPP; + + if (!info->attrs[NL802154_ATTR_CCA_ED_LEVEL]) + return -EINVAL; + + ed_level = nla_get_s32(info->attrs[NL802154_ATTR_CCA_ED_LEVEL]); + + for (i = 0; i < rdev->wpan_phy.supported.cca_ed_levels_size; i++) { + if (ed_level == rdev->wpan_phy.supported.cca_ed_levels[i]) + return rdev_set_cca_ed_level(rdev, ed_level); + } + + return -EINVAL; +} + static int nl802154_set_tx_power(struct sk_buff *skb, struct genl_info *info) { struct cfg802154_registered_device *rdev = info->user_ptr[0]; @@ -1122,6 +1144,14 @@ static const struct genl_ops nl802154_ops[] = { .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | NL802154_FLAG_NEED_RTNL, }, + { + .cmd = NL802154_CMD_SET_CCA_ED_LEVEL, + .doit = nl802154_set_cca_ed_level, + .policy = nl802154_policy, + .flags = GENL_ADMIN_PERM, + .internal_flags = NL802154_FLAG_NEED_WPAN_PHY | + NL802154_FLAG_NEED_RTNL, + }, { .cmd = NL802154_CMD_SET_TX_POWER, .doit = nl802154_set_tx_power, diff --git a/net/ieee802154/rdev-ops.h b/net/ieee802154/rdev-ops.h index 36456118a6ec..b2155a123f6c 100644 --- a/net/ieee802154/rdev-ops.h +++ b/net/ieee802154/rdev-ops.h @@ -74,6 +74,17 @@ rdev_set_cca_mode(struct cfg802154_registered_device *rdev, return ret; } +static inline int +rdev_set_cca_ed_level(struct cfg802154_registered_device *rdev, s32 ed_level) +{ + int ret; + + trace_802154_rdev_set_cca_ed_level(&rdev->wpan_phy, ed_level); + ret = rdev->ops->set_cca_ed_level(&rdev->wpan_phy, ed_level); + trace_802154_rdev_return_int(&rdev->wpan_phy, ret); + return ret; +} + static inline int rdev_set_tx_power(struct cfg802154_registered_device *rdev, s32 power) diff --git a/net/ieee802154/trace.h b/net/ieee802154/trace.h index ac790bb1b4fe..73eb7605c1eb 100644 --- a/net/ieee802154/trace.h +++ b/net/ieee802154/trace.h @@ -123,6 +123,21 @@ TRACE_EVENT(802154_rdev_set_cca_mode, WPAN_CCA_PR_ARG) ); +TRACE_EVENT(802154_rdev_set_cca_ed_level, + TP_PROTO(struct wpan_phy *wpan_phy, s32 ed_level), + TP_ARGS(wpan_phy, ed_level), + TP_STRUCT__entry( + WPAN_PHY_ENTRY + __field(s32, ed_level) + ), + TP_fast_assign( + WPAN_PHY_ASSIGN; + __entry->ed_level = ed_level; + ), + TP_printk(WPAN_PHY_PR_FMT ", ed_level: %d", WPAN_PHY_PR_ARG, + __entry->ed_level) +); + DECLARE_EVENT_CLASS(802154_le16_template, TP_PROTO(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev, __le16 le16arg), diff --git a/net/mac802154/cfg.c b/net/mac802154/cfg.c index ab12fa296eb3..317c4662e544 100644 --- a/net/mac802154/cfg.c +++ b/net/mac802154/cfg.c @@ -105,6 +105,24 @@ ieee802154_set_cca_mode(struct wpan_phy *wpan_phy, return ret; } +static int +ieee802154_set_cca_ed_level(struct wpan_phy *wpan_phy, s32 ed_level) +{ + struct ieee802154_local *local = wpan_phy_priv(wpan_phy); + int ret; + + ASSERT_RTNL(); + + if (wpan_phy->cca_ed_level == ed_level) + return 0; + + ret = drv_set_cca_ed_level(local, ed_level); + if (!ret) + wpan_phy->cca_ed_level = ed_level; + + return ret; +} + static int ieee802154_set_tx_power(struct wpan_phy *wpan_phy, s32 power) { @@ -213,6 +231,7 @@ const struct cfg802154_ops mac802154_config_ops = { .del_virtual_intf = ieee802154_del_iface, .set_channel = ieee802154_set_channel, .set_cca_mode = ieee802154_set_cca_mode, + .set_cca_ed_level = ieee802154_set_cca_ed_level, .set_tx_power = ieee802154_set_tx_power, .set_pan_id = ieee802154_set_pan_id, .set_short_addr = ieee802154_set_short_addr,