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-rw-r--r--drivers/net/ieee802154/at86rf230.c26
-rw-r--r--include/linux/nl802154.h1
-rw-r--r--include/net/mac802154.h7
-rw-r--r--include/net/wpan-phy.h2
-rw-r--r--net/ieee802154/nl-phy.c30
-rw-r--r--net/ieee802154/nl_policy.c1
-rw-r--r--net/mac802154/ieee802154_dev.c11
7 files changed, 73 insertions, 5 deletions
diff --git a/drivers/net/ieee802154/at86rf230.c b/drivers/net/ieee802154/at86rf230.c
index c60871aff333..20596be61028 100644
--- a/drivers/net/ieee802154/at86rf230.c
+++ b/drivers/net/ieee802154/at86rf230.c
@@ -52,6 +52,8 @@ struct at86rf230_local {
spinlock_t lock;
bool irq_busy;
bool is_tx;
+
+ int rssi_base_val;
};
static inline int is_rf212(struct at86rf230_local *local)
@@ -580,6 +582,8 @@ at86rf230_stop(struct ieee802154_dev *dev)
static int
at86rf230_set_channel(struct at86rf230_local *lp, int page, int channel)
{
+ lp->rssi_base_val = -91;
+
return at86rf230_write_subreg(lp, SR_CHANNEL, channel);
}
@@ -595,10 +599,13 @@ at86rf212_set_channel(struct at86rf230_local *lp, int page, int channel)
if (rc < 0)
return rc;
- if (page == 0)
+ if (page == 0) {
rc = at86rf230_write_subreg(lp, SR_BPSK_QPSK, 0);
- else
+ lp->rssi_base_val = -100;
+ } else {
rc = at86rf230_write_subreg(lp, SR_BPSK_QPSK, 1);
+ lp->rssi_base_val = -98;
+ }
if (rc < 0)
return rc;
@@ -802,6 +809,20 @@ at86rf212_set_cca_mode(struct ieee802154_dev *dev, u8 mode)
return at86rf230_write_subreg(lp, SR_CCA_MODE, mode);
}
+static int
+at86rf212_set_cca_ed_level(struct ieee802154_dev *dev, s32 level)
+{
+ struct at86rf230_local *lp = dev->priv;
+ int desens_steps;
+
+ if (level < lp->rssi_base_val || level > 30)
+ return -EINVAL;
+
+ desens_steps = (level - lp->rssi_base_val) * 100 / 207;
+
+ return at86rf230_write_subreg(lp, SR_CCA_ED_THRES, desens_steps);
+}
+
static struct ieee802154_ops at86rf230_ops = {
.owner = THIS_MODULE,
.xmit = at86rf230_xmit,
@@ -823,6 +844,7 @@ static struct ieee802154_ops at86rf212_ops = {
.set_txpower = at86rf212_set_txpower,
.set_lbt = at86rf212_set_lbt,
.set_cca_mode = at86rf212_set_cca_mode,
+ .set_cca_ed_level = at86rf212_set_cca_ed_level,
};
static void at86rf230_irqwork(struct work_struct *work)
diff --git a/include/linux/nl802154.h b/include/linux/nl802154.h
index 5edefc14bd83..0594a0ae71ba 100644
--- a/include/linux/nl802154.h
+++ b/include/linux/nl802154.h
@@ -73,6 +73,7 @@ enum {
IEEE802154_ATTR_TXPOWER,
IEEE802154_ATTR_LBT_ENABLED,
IEEE802154_ATTR_CCA_MODE,
+ IEEE802154_ATTR_CCA_ED_LEVEL,
__IEEE802154_ATTR_MAX,
};
diff --git a/include/net/mac802154.h b/include/net/mac802154.h
index 1a98e5014e66..15fe6bca80f0 100644
--- a/include/net/mac802154.h
+++ b/include/net/mac802154.h
@@ -126,6 +126,11 @@ struct ieee802154_dev {
* set_cca_mode
* Sets the CCA mode used by the device. Called with pib_lock held.
* Returns either zero, or negative errno.
+ *
+ * set_cca_ed_level
+ * Sets the CCA energy detection threshold in dBm. Called with pib_lock
+ * held.
+ * Returns either zero, or negative errno.
*/
struct ieee802154_ops {
struct module *owner;
@@ -145,6 +150,8 @@ struct ieee802154_ops {
int (*set_txpower)(struct ieee802154_dev *dev, int db);
int (*set_lbt)(struct ieee802154_dev *dev, bool on);
int (*set_cca_mode)(struct ieee802154_dev *dev, u8 mode);
+ int (*set_cca_ed_level)(struct ieee802154_dev *dev,
+ s32 level);
};
/* Basic interface to register ieee802154 device */
diff --git a/include/net/wpan-phy.h b/include/net/wpan-phy.h
index 03b59051972d..0b570ad5e5fa 100644
--- a/include/net/wpan-phy.h
+++ b/include/net/wpan-phy.h
@@ -48,6 +48,7 @@ struct wpan_phy {
u8 cca_mode;
bool lbt;
+ s32 cca_ed_level;
struct device dev;
int idx;
@@ -59,6 +60,7 @@ struct wpan_phy {
int (*set_txpower)(struct wpan_phy *phy, int db);
int (*set_lbt)(struct wpan_phy *phy, bool on);
int (*set_cca_mode)(struct wpan_phy *phy, u8 cca_mode);
+ int (*set_cca_ed_level)(struct wpan_phy *phy, int level);
char priv[0] __attribute__((__aligned__(NETDEV_ALIGN)));
};
diff --git a/net/ieee802154/nl-phy.c b/net/ieee802154/nl-phy.c
index 36f58d633868..0af0d424dee0 100644
--- a/net/ieee802154/nl-phy.c
+++ b/net/ieee802154/nl-phy.c
@@ -58,7 +58,8 @@ static int ieee802154_nl_fill_phy(struct sk_buff *msg, u32 portid,
nla_put_u8(msg, IEEE802154_ATTR_CHANNEL, phy->current_channel) ||
nla_put_s8(msg, IEEE802154_ATTR_TXPOWER, phy->transmit_power) ||
nla_put_u8(msg, IEEE802154_ATTR_LBT_ENABLED, phy->lbt) ||
- nla_put_u8(msg, IEEE802154_ATTR_CCA_MODE, phy->cca_mode))
+ nla_put_u8(msg, IEEE802154_ATTR_CCA_MODE, phy->cca_mode) ||
+ nla_put_s32(msg, IEEE802154_ATTR_CCA_ED_LEVEL, phy->cca_ed_level))
goto nla_put_failure;
for (i = 0; i < 32; i++) {
if (phy->channels_supported[i])
@@ -403,6 +404,20 @@ static int phy_set_cca_mode(struct wpan_phy *phy, struct genl_info *info)
return 0;
}
+static int phy_set_cca_ed_level(struct wpan_phy *phy, struct genl_info *info)
+{
+ s32 level = nla_get_s32(info->attrs[IEEE802154_ATTR_CCA_ED_LEVEL]);
+ int rc;
+
+ rc = phy->set_cca_ed_level(phy, level);
+ if (rc < 0)
+ return rc;
+
+ phy->cca_ed_level = level;
+
+ return 0;
+}
+
int ieee802154_set_phyparams(struct sk_buff *skb, struct genl_info *info)
{
struct wpan_phy *phy;
@@ -413,7 +428,8 @@ int ieee802154_set_phyparams(struct sk_buff *skb, struct genl_info *info)
if (!info->attrs[IEEE802154_ATTR_PHY_NAME] &&
!info->attrs[IEEE802154_ATTR_LBT_ENABLED] &&
- !info->attrs[IEEE802154_ATTR_CCA_MODE])
+ !info->attrs[IEEE802154_ATTR_CCA_MODE] &&
+ !info->attrs[IEEE802154_ATTR_CCA_ED_LEVEL])
return -EINVAL;
name = nla_data(info->attrs[IEEE802154_ATTR_PHY_NAME]);
@@ -426,7 +442,9 @@ int ieee802154_set_phyparams(struct sk_buff *skb, struct genl_info *info)
if ((!phy->set_txpower && info->attrs[IEEE802154_ATTR_TXPOWER]) ||
(!phy->set_lbt && info->attrs[IEEE802154_ATTR_LBT_ENABLED]) ||
- (!phy->set_cca_mode && info->attrs[IEEE802154_ATTR_CCA_MODE]))
+ (!phy->set_cca_mode && info->attrs[IEEE802154_ATTR_CCA_MODE]) ||
+ (!phy->set_cca_ed_level &&
+ info->attrs[IEEE802154_ATTR_CCA_ED_LEVEL]))
goto out;
mutex_lock(&phy->pib_lock);
@@ -449,6 +467,12 @@ int ieee802154_set_phyparams(struct sk_buff *skb, struct genl_info *info)
goto error;
}
+ if (info->attrs[IEEE802154_ATTR_CCA_ED_LEVEL]) {
+ rc = phy_set_cca_ed_level(phy, info);
+ if (rc < 0)
+ goto error;
+ }
+
mutex_unlock(&phy->pib_lock);
wpan_phy_put(phy);
diff --git a/net/ieee802154/nl_policy.c b/net/ieee802154/nl_policy.c
index d87c2c904110..55b5616295ff 100644
--- a/net/ieee802154/nl_policy.c
+++ b/net/ieee802154/nl_policy.c
@@ -56,5 +56,6 @@ const struct nla_policy ieee802154_policy[IEEE802154_ATTR_MAX + 1] = {
[IEEE802154_ATTR_TXPOWER] = { .type = NLA_S8, },
[IEEE802154_ATTR_LBT_ENABLED] = { .type = NLA_U8, },
[IEEE802154_ATTR_CCA_MODE] = { .type = NLA_U8, },
+ [IEEE802154_ATTR_CCA_ED_LEVEL] = { .type = NLA_S32, },
};
diff --git a/net/mac802154/ieee802154_dev.c b/net/mac802154/ieee802154_dev.c
index 4965e4ce6b5b..4707f36546d3 100644
--- a/net/mac802154/ieee802154_dev.c
+++ b/net/mac802154/ieee802154_dev.c
@@ -195,6 +195,16 @@ static int mac802154_set_cca_mode(struct wpan_phy *phy, u8 mode)
return priv->ops->set_cca_mode(&priv->hw, mode);
}
+static int mac802154_set_cca_ed_level(struct wpan_phy *phy, s32 level)
+{
+ struct mac802154_priv *priv = wpan_phy_priv(phy);
+
+ if (!priv->ops->set_cca_ed_level)
+ return -ENOTSUPP;
+
+ return priv->ops->set_cca_ed_level(&priv->hw, level);
+}
+
struct ieee802154_dev *
ieee802154_alloc_device(size_t priv_data_len, struct ieee802154_ops *ops)
{
@@ -275,6 +285,7 @@ int ieee802154_register_device(struct ieee802154_dev *dev)
priv->phy->set_txpower = mac802154_set_txpower;
priv->phy->set_lbt = mac802154_set_lbt;
priv->phy->set_cca_mode = mac802154_set_cca_mode;
+ priv->phy->set_cca_ed_level = mac802154_set_cca_ed_level;
rc = wpan_phy_register(priv->phy);
if (rc < 0)
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.