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ieee802154: add set transmit power support

Browse source 
This patch adds transmission power setting support for IEEE-802.15.4
devices via nl802154.

Signed-off-by: Varka Bhadram <[email protected]>
Acked-by: Alexander Aring <[email protected]>
Signed-off-by: Marcel Holtmann <[email protected]>
This commit is contained in:
Varka Bhadram 2015-05-27 09:10:54 +05:30 • committed by Marcel Holtmann
commit 0f999b09f5
5 changed files with 77 additions and 0 deletions
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30
net/ieee802154/nl802154.c
View file

@ -783,6 +783,28 @@ 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_tx_power(struct sk_buff *skb, struct genl_info *info)
{
struct cfg802154_registered_device *rdev = info->user_ptr[0];
s32 power;
int i;
if (!(rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER))
return -EOPNOTSUPP;
if (!info->attrs[NL802154_ATTR_TX_POWER])
return -EINVAL;
power = nla_get_s32(info->attrs[NL802154_ATTR_TX_POWER]);
for (i = 0; i < rdev->wpan_phy.supported.tx_powers_size; i++) {
if (power == rdev->wpan_phy.supported.tx_powers[i])
return rdev_set_tx_power(rdev, power);
}
return -EINVAL;
}
static int nl802154_set_pan_id(struct sk_buff *skb, struct genl_info *info)
{
struct cfg802154_registered_device *rdev = info->user_ptr[0];
@ -1093,6 +1115,14 @@ static const struct genl_ops nl802154_ops[] = {
.internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
NL802154_FLAG_NEED_RTNL,
},
{
.cmd = NL802154_CMD_SET_TX_POWER,
.doit = nl802154_set_tx_power,
.policy = nl802154_policy,
.flags = GENL_ADMIN_PERM,
.internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
NL802154_FLAG_NEED_RTNL,
},
{
.cmd = NL802154_CMD_SET_PAN_ID,
.doit = nl802154_set_pan_id,

12
net/ieee802154/rdev-ops.h
View file

@ -74,6 +74,18 @@ rdev_set_cca_mode(struct cfg802154_registered_device *rdev,
return ret;
}
static inline int
rdev_set_tx_power(struct cfg802154_registered_device *rdev,
s32 power)
{
int ret;
trace_802154_rdev_set_tx_power(&rdev->wpan_phy, power);
ret = rdev->ops->set_tx_power(&rdev->wpan_phy, power);
trace_802154_rdev_return_int(&rdev->wpan_phy, ret);
return ret;
}
static inline int
rdev_set_pan_id(struct cfg802154_registered_device *rdev,
struct wpan_dev *wpan_dev, __le16 pan_id)

15
net/ieee802154/trace.h
View file

@ -93,6 +93,21 @@ TRACE_EVENT(802154_rdev_set_channel,
__entry->page, __entry->channel)
);
TRACE_EVENT(802154_rdev_set_tx_power,
TP_PROTO(struct wpan_phy *wpan_phy, s32 power),
TP_ARGS(wpan_phy, power),
TP_STRUCT__entry(
WPAN_PHY_ENTRY
__field(s32, power)
),
TP_fast_assign(
WPAN_PHY_ASSIGN;
__entry->power = power;
),
TP_printk(WPAN_PHY_PR_FMT ", power: %d", WPAN_PHY_PR_ARG,
__entry->power)
);
TRACE_EVENT(802154_rdev_set_cca_mode,
TP_PROTO(struct wpan_phy *wpan_phy, const struct wpan_phy_cca *cca),
TP_ARGS(wpan_phy, cca),