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Diffstat (limited to 'net/mac802154/driver-ops.h')
-rw-r--r--net/mac802154/driver-ops.h253
1 files changed, 161 insertions, 92 deletions
diff --git a/net/mac802154/driver-ops.h b/net/mac802154/driver-ops.h
index d23f0db98015..a7af3f0ddb3e 100644
--- a/net/mac802154/driver-ops.h
+++ b/net/mac802154/driver-ops.h
@@ -24,203 +24,290 @@ drv_xmit_sync(struct ieee802154_local *local, struct sk_buff *skb)
return local->ops->xmit_sync(&local->hw, skb);
}
-static inline int drv_start(struct ieee802154_local *local)
+static inline int drv_set_pan_id(struct ieee802154_local *local, __le16 pan_id)
{
+ struct ieee802154_hw_addr_filt filt;
int ret;
might_sleep();
- trace_802154_drv_start(local);
- local->started = true;
- smp_mb();
- ret = local->ops->start(&local->hw);
+ if (!local->ops->set_hw_addr_filt) {
+ WARN_ON(1);
+ return -EOPNOTSUPP;
+ }
+
+ filt.pan_id = pan_id;
+
+ trace_802154_drv_set_pan_id(local, pan_id);
+ ret = local->ops->set_hw_addr_filt(&local->hw, &filt,
+ IEEE802154_AFILT_PANID_CHANGED);
trace_802154_drv_return_int(local, ret);
return ret;
}
-static inline void drv_stop(struct ieee802154_local *local)
+static inline int
+drv_set_extended_addr(struct ieee802154_local *local, __le64 extended_addr)
{
- might_sleep();
+ struct ieee802154_hw_addr_filt filt;
+ int ret;
- trace_802154_drv_stop(local);
- local->ops->stop(&local->hw);
- trace_802154_drv_return_void(local);
+ might_sleep();
- /* sync away all work on the tasklet before clearing started */
- tasklet_disable(&local->tasklet);
- tasklet_enable(&local->tasklet);
+ if (!local->ops->set_hw_addr_filt) {
+ WARN_ON(1);
+ return -EOPNOTSUPP;
+ }
- barrier();
+ filt.ieee_addr = extended_addr;
- local->started = false;
+ trace_802154_drv_set_extended_addr(local, extended_addr);
+ ret = local->ops->set_hw_addr_filt(&local->hw, &filt,
+ IEEE802154_AFILT_IEEEADDR_CHANGED);
+ trace_802154_drv_return_int(local, ret);
+ return ret;
}
static inline int
-drv_set_channel(struct ieee802154_local *local, u8 page, u8 channel)
+drv_set_short_addr(struct ieee802154_local *local, __le16 short_addr)
{
+ struct ieee802154_hw_addr_filt filt;
int ret;
might_sleep();
- trace_802154_drv_set_channel(local, page, channel);
- ret = local->ops->set_channel(&local->hw, page, channel);
+ if (!local->ops->set_hw_addr_filt) {
+ WARN_ON(1);
+ return -EOPNOTSUPP;
+ }
+
+ filt.short_addr = short_addr;
+
+ trace_802154_drv_set_short_addr(local, short_addr);
+ ret = local->ops->set_hw_addr_filt(&local->hw, &filt,
+ IEEE802154_AFILT_SADDR_CHANGED);
trace_802154_drv_return_int(local, ret);
return ret;
}
-static inline int drv_set_tx_power(struct ieee802154_local *local, s32 mbm)
+static inline int
+drv_set_pan_coord(struct ieee802154_local *local, bool is_coord)
{
+ struct ieee802154_hw_addr_filt filt;
int ret;
might_sleep();
- if (!local->ops->set_txpower) {
+ if (!local->ops->set_hw_addr_filt) {
WARN_ON(1);
return -EOPNOTSUPP;
}
- trace_802154_drv_set_tx_power(local, mbm);
- ret = local->ops->set_txpower(&local->hw, mbm);
+ filt.pan_coord = is_coord;
+
+ trace_802154_drv_set_pan_coord(local, is_coord);
+ ret = local->ops->set_hw_addr_filt(&local->hw, &filt,
+ IEEE802154_AFILT_PANC_CHANGED);
trace_802154_drv_return_int(local, ret);
return ret;
}
-static inline int drv_set_cca_mode(struct ieee802154_local *local,
- const struct wpan_phy_cca *cca)
+static inline int
+drv_set_promiscuous_mode(struct ieee802154_local *local, bool on)
{
int ret;
might_sleep();
- if (!local->ops->set_cca_mode) {
+ if (!local->ops->set_promiscuous_mode) {
WARN_ON(1);
return -EOPNOTSUPP;
}
- trace_802154_drv_set_cca_mode(local, cca);
- ret = local->ops->set_cca_mode(&local->hw, cca);
+ trace_802154_drv_set_promiscuous_mode(local, on);
+ ret = local->ops->set_promiscuous_mode(&local->hw, on);
trace_802154_drv_return_int(local, ret);
return ret;
}
-static inline int drv_set_lbt_mode(struct ieee802154_local *local, bool mode)
+static inline int drv_start(struct ieee802154_local *local,
+ enum ieee802154_filtering_level level,
+ const struct ieee802154_hw_addr_filt *addr_filt)
{
int ret;
might_sleep();
- if (!local->ops->set_lbt) {
+ /* setup receive mode parameters e.g. address mode */
+ if (local->hw.flags & IEEE802154_HW_AFILT) {
+ ret = drv_set_pan_id(local, addr_filt->pan_id);
+ if (ret < 0)
+ return ret;
+
+ ret = drv_set_short_addr(local, addr_filt->short_addr);
+ if (ret < 0)
+ return ret;
+
+ ret = drv_set_extended_addr(local, addr_filt->ieee_addr);
+ if (ret < 0)
+ return ret;
+ }
+
+ switch (level) {
+ case IEEE802154_FILTERING_NONE:
+ fallthrough;
+ case IEEE802154_FILTERING_1_FCS:
+ fallthrough;
+ case IEEE802154_FILTERING_2_PROMISCUOUS:
+ /* TODO: Requires a different receive mode setup e.g.
+ * at86rf233 hardware.
+ */
+ fallthrough;
+ case IEEE802154_FILTERING_3_SCAN:
+ if (local->hw.flags & IEEE802154_HW_PROMISCUOUS) {
+ ret = drv_set_promiscuous_mode(local, true);
+ if (ret < 0)
+ return ret;
+ } else {
+ return -EOPNOTSUPP;
+ }
+
+ /* In practice other filtering levels can be requested, but as
+ * for now most hardware/drivers only support
+ * IEEE802154_FILTERING_NONE, we fallback to this actual
+ * filtering level in hardware and make our own additional
+ * filtering in mac802154 receive path.
+ *
+ * TODO: Move this logic to the device drivers as hardware may
+ * support more higher level filters. Hardware may also require
+ * a different order how register are set, which could currently
+ * be buggy, so all received parameters need to be moved to the
+ * start() callback and let the driver go into the mode before
+ * it will turn on receive handling.
+ */
+ local->phy->filtering = IEEE802154_FILTERING_NONE;
+ break;
+ case IEEE802154_FILTERING_4_FRAME_FIELDS:
+ /* Do not error out if IEEE802154_HW_PROMISCUOUS because we
+ * expect the hardware to operate at the level
+ * IEEE802154_FILTERING_4_FRAME_FIELDS anyway.
+ */
+ if (local->hw.flags & IEEE802154_HW_PROMISCUOUS) {
+ ret = drv_set_promiscuous_mode(local, false);
+ if (ret < 0)
+ return ret;
+ }
+
+ local->phy->filtering = IEEE802154_FILTERING_4_FRAME_FIELDS;
+ break;
+ default:
WARN_ON(1);
- return -EOPNOTSUPP;
+ return -EINVAL;
}
- trace_802154_drv_set_lbt_mode(local, mode);
- ret = local->ops->set_lbt(&local->hw, mode);
+ trace_802154_drv_start(local);
+ local->started = true;
+ smp_mb();
+ ret = local->ops->start(&local->hw);
trace_802154_drv_return_int(local, ret);
return ret;
}
+static inline void drv_stop(struct ieee802154_local *local)
+{
+ might_sleep();
+
+ trace_802154_drv_stop(local);
+ local->ops->stop(&local->hw);
+ trace_802154_drv_return_void(local);
+
+ /* sync away all work on the tasklet before clearing started */
+ tasklet_disable(&local->tasklet);
+ tasklet_enable(&local->tasklet);
+
+ barrier();
+
+ local->started = false;
+}
+
static inline int
-drv_set_cca_ed_level(struct ieee802154_local *local, s32 mbm)
+drv_set_channel(struct ieee802154_local *local, u8 page, u8 channel)
{
int ret;
might_sleep();
- if (!local->ops->set_cca_ed_level) {
- WARN_ON(1);
- return -EOPNOTSUPP;
- }
-
- trace_802154_drv_set_cca_ed_level(local, mbm);
- ret = local->ops->set_cca_ed_level(&local->hw, mbm);
+ trace_802154_drv_set_channel(local, page, channel);
+ ret = local->ops->set_channel(&local->hw, page, channel);
trace_802154_drv_return_int(local, ret);
return ret;
}
-static inline int drv_set_pan_id(struct ieee802154_local *local, __le16 pan_id)
+static inline int drv_set_tx_power(struct ieee802154_local *local, s32 mbm)
{
- struct ieee802154_hw_addr_filt filt;
int ret;
might_sleep();
- if (!local->ops->set_hw_addr_filt) {
+ if (!local->ops->set_txpower) {
WARN_ON(1);
return -EOPNOTSUPP;
}
- filt.pan_id = pan_id;
-
- trace_802154_drv_set_pan_id(local, pan_id);
- ret = local->ops->set_hw_addr_filt(&local->hw, &filt,
- IEEE802154_AFILT_PANID_CHANGED);
+ trace_802154_drv_set_tx_power(local, mbm);
+ ret = local->ops->set_txpower(&local->hw, mbm);
trace_802154_drv_return_int(local, ret);
return ret;
}
-static inline int
-drv_set_extended_addr(struct ieee802154_local *local, __le64 extended_addr)
+static inline int drv_set_cca_mode(struct ieee802154_local *local,
+ const struct wpan_phy_cca *cca)
{
- struct ieee802154_hw_addr_filt filt;
int ret;
might_sleep();
- if (!local->ops->set_hw_addr_filt) {
+ if (!local->ops->set_cca_mode) {
WARN_ON(1);
return -EOPNOTSUPP;
}
- filt.ieee_addr = extended_addr;
-
- trace_802154_drv_set_extended_addr(local, extended_addr);
- ret = local->ops->set_hw_addr_filt(&local->hw, &filt,
- IEEE802154_AFILT_IEEEADDR_CHANGED);
+ trace_802154_drv_set_cca_mode(local, cca);
+ ret = local->ops->set_cca_mode(&local->hw, cca);
trace_802154_drv_return_int(local, ret);
return ret;
}
-static inline int
-drv_set_short_addr(struct ieee802154_local *local, __le16 short_addr)
+static inline int drv_set_lbt_mode(struct ieee802154_local *local, bool mode)
{
- struct ieee802154_hw_addr_filt filt;
int ret;
might_sleep();
- if (!local->ops->set_hw_addr_filt) {
+ if (!local->ops->set_lbt) {
WARN_ON(1);
return -EOPNOTSUPP;
}
- filt.short_addr = short_addr;
-
- trace_802154_drv_set_short_addr(local, short_addr);
- ret = local->ops->set_hw_addr_filt(&local->hw, &filt,
- IEEE802154_AFILT_SADDR_CHANGED);
+ trace_802154_drv_set_lbt_mode(local, mode);
+ ret = local->ops->set_lbt(&local->hw, mode);
trace_802154_drv_return_int(local, ret);
return ret;
}
static inline int
-drv_set_pan_coord(struct ieee802154_local *local, bool is_coord)
+drv_set_cca_ed_level(struct ieee802154_local *local, s32 mbm)
{
- struct ieee802154_hw_addr_filt filt;
int ret;
might_sleep();
- if (!local->ops->set_hw_addr_filt) {
+ if (!local->ops->set_cca_ed_level) {
WARN_ON(1);
return -EOPNOTSUPP;
}
- filt.pan_coord = is_coord;
-
- trace_802154_drv_set_pan_coord(local, is_coord);
- ret = local->ops->set_hw_addr_filt(&local->hw, &filt,
- IEEE802154_AFILT_PANC_CHANGED);
+ trace_802154_drv_set_cca_ed_level(local, mbm);
+ ret = local->ops->set_cca_ed_level(&local->hw, mbm);
trace_802154_drv_return_int(local, ret);
return ret;
}
@@ -264,22 +351,4 @@ drv_set_max_frame_retries(struct ieee802154_local *local, s8 max_frame_retries)
return ret;
}
-static inline int
-drv_set_promiscuous_mode(struct ieee802154_local *local, bool on)
-{
- int ret;
-
- might_sleep();
-
- if (!local->ops->set_promiscuous_mode) {
- WARN_ON(1);
- return -EOPNOTSUPP;
- }
-
- trace_802154_drv_set_promiscuous_mode(local, on);
- ret = local->ops->set_promiscuous_mode(&local->hw, on);
- trace_802154_drv_return_int(local, ret);
- return ret;
-}
-
#endif /* __MAC802154_DRIVER_OPS */
generated by cgit (git 2.34.1) at 2024-06-10 23:07:41 +0000