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ieee802154: add several phy supported handling

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This patch adds support for phy supported handling for all other already
existing handling 802.15.4 functionality. We assume now a fully 802.15.4
complaint transceiver at phy allocation. If a transceiver can support
802.15.4 default values only, then the values should be overwirtten by
values the transceiver supports. If the transceiver doesn't set the
according hardware flags, we assume the 802.15.4 defaults now which
cannot be changed.

Signed-off-by: Alexander Aring <[email protected]>
Suggested-by: Phoebe Buckheister <[email protected]>
Signed-off-by: Marcel Holtmann <[email protected]>
This commit is contained in:
Alexander Aring 2015-05-17 21:44:43 +02:00 • committed by Marcel Holtmann
commit fea3318d20
4 changed files with 90 additions and 6 deletions
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22
net/ieee802154/nl802154.c
View file

@ -642,7 +642,9 @@ static int nl802154_set_cca_mode(struct sk_buff *skb, struct genl_info *info)
cca.mode = nla_get_u32(info->attrs[NL802154_ATTR_CCA_MODE]);
/* checking 802.15.4 constraints */
if (cca.mode < NL802154_CCA_ENERGY || cca.mode > NL802154_CCA_ATTR_MAX)
if (cca.mode < NL802154_CCA_ENERGY ||
cca.mode > NL802154_CCA_ATTR_MAX ||
!(rdev->wpan_phy.supported.cca_modes & BIT(cca.mode)))
return -EINVAL;
if (cca.mode == NL802154_CCA_ENERGY_CARRIER) {
@ -650,7 +652,8 @@ static int nl802154_set_cca_mode(struct sk_buff *skb, struct genl_info *info)
return -EINVAL;
cca.opt = nla_get_u32(info->attrs[NL802154_ATTR_CCA_OPT]);
if (cca.opt > NL802154_CCA_OPT_ATTR_MAX)
if (cca.opt > NL802154_CCA_OPT_ATTR_MAX ||
!(rdev->wpan_phy.supported.cca_opts & BIT(cca.opt)))
return -EINVAL;
}
@ -744,7 +747,11 @@ nl802154_set_backoff_exponent(struct sk_buff *skb, struct genl_info *info)
max_be = nla_get_u8(info->attrs[NL802154_ATTR_MAX_BE]);
/* check 802.15.4 constraints */
if (max_be < 3 || max_be > 8 || min_be > max_be)
if (min_be < rdev->wpan_phy.supported.min_minbe ||
min_be > rdev->wpan_phy.supported.max_minbe ||
max_be < rdev->wpan_phy.supported.min_maxbe ||
max_be > rdev->wpan_phy.supported.max_maxbe ||
min_be > max_be)
return -EINVAL;
return rdev_set_backoff_exponent(rdev, wpan_dev, min_be, max_be);
@ -769,7 +776,8 @@ nl802154_set_max_csma_backoffs(struct sk_buff *skb, struct genl_info *info)
info->attrs[NL802154_ATTR_MAX_CSMA_BACKOFFS]);
/* check 802.15.4 constraints */
if (max_csma_backoffs > 5)
if (max_csma_backoffs < rdev->wpan_phy.supported.min_csma_backoffs ||
max_csma_backoffs > rdev->wpan_phy.supported.max_csma_backoffs)
return -EINVAL;
return rdev_set_max_csma_backoffs(rdev, wpan_dev, max_csma_backoffs);
@ -793,7 +801,8 @@ nl802154_set_max_frame_retries(struct sk_buff *skb, struct genl_info *info)
info->attrs[NL802154_ATTR_MAX_FRAME_RETRIES]);
/* check 802.15.4 constraints */
if (max_frame_retries < -1 || max_frame_retries > 7)
if (max_frame_retries < rdev->wpan_phy.supported.min_frame_retries ||
max_frame_retries > rdev->wpan_phy.supported.max_frame_retries)
return -EINVAL;
return rdev_set_max_frame_retries(rdev, wpan_dev, max_frame_retries);
@ -813,6 +822,9 @@ static int nl802154_set_lbt_mode(struct sk_buff *skb, struct genl_info *info)
return -EINVAL;
mode = !!nla_get_u8(info->attrs[NL802154_ATTR_LBT_MODE]);
if (!wpan_phy_supported_bool(mode, rdev->wpan_phy.supported.lbt))
return -EINVAL;
return rdev_set_lbt_mode(rdev, wpan_dev, mode);
}