#include <net/cfg802154.h>
-/* General MAC frame format:
- * 2 bytes: Frame Control
- * 1 byte: Sequence Number
- * 20 bytes: Addressing fields
- * 14 bytes: Auxiliary Security Header
- */
-#define MAC802154_FRAME_HARD_HEADER_LEN (2 + 1 + 20 + 14)
-
-/* The following flags are used to indicate changed address settings from
+/**
+ * enum ieee802154_hw_addr_filt_flags - hardware address filtering flags
+ *
+ * The following flags are used to indicate changed address settings from
* the stack to the hardware.
+ *
+ * @IEEE802154_AFILT_SADDR_CHANGED: Indicates that the short address will be
+ * change.
+ *
+ * @IEEE802154_AFILT_IEEEADDR_CHANGED: Indicates that the extended address
+ * will be change.
+ *
+ * @IEEE802154_AFILT_PANID_CHANGED: Indicates that the pan id will be change.
+ *
+ * @IEEE802154_AFILT_PANC_CHANGED: Indicates that the address filter will
+ * do frame address filtering as a pan coordinator.
*/
+enum ieee802154_hw_addr_filt_flags {
+ IEEE802154_AFILT_SADDR_CHANGED = BIT(0),
+ IEEE802154_AFILT_IEEEADDR_CHANGED = BIT(1),
+ IEEE802154_AFILT_PANID_CHANGED = BIT(2),
+ IEEE802154_AFILT_PANC_CHANGED = BIT(3),
+};
-/* indicates that the Short Address changed */
-#define IEEE802154_AFILT_SADDR_CHANGED 0x00000001
-/* indicates that the IEEE Address changed */
-#define IEEE802154_AFILT_IEEEADDR_CHANGED 0x00000002
-/* indicates that the PAN ID changed */
-#define IEEE802154_AFILT_PANID_CHANGED 0x00000004
-/* indicates that PAN Coordinator status changed */
-#define IEEE802154_AFILT_PANC_CHANGED 0x00000008
-
+/**
+ * struct ieee802154_hw_addr_filt - hardware address filtering settings
+ *
+ * @pan_id: pan_id which should be set to the hardware address filter.
+ *
+ * @short_addr: short_addr which should be set to the hardware address filter.
+ *
+ * @ieee_addr: extended address which should be set to the hardware address
+ * filter.
+ *
+ * @pan_coord: boolean if hardware filtering should be operate as coordinator.
+ */
struct ieee802154_hw_addr_filt {
- __le16 pan_id; /* Each independent PAN selects a unique
- * identifier. This PAN id allows communication
- * between devices within a network using short
- * addresses and enables transmissions between
- * devices across independent networks.
- */
+ __le16 pan_id;
__le16 short_addr;
__le64 ieee_addr;
- u8 pan_coord;
-};
-
-struct ieee802154_vif {
- int type;
-
- /* must be last */
- u8 drv_priv[0] __aligned(sizeof(void *));
+ bool pan_coord;
};
+/**
+ * struct ieee802154_hw - ieee802154 hardware
+ *
+ * @extra_tx_headroom: headroom to reserve in each transmit skb for use by the
+ * driver (e.g. for transmit headers.)
+ *
+ * @flags: hardware flags, see &enum ieee802154_hw_flags
+ *
+ * @parent: parent device of the hardware.
+ *
+ * @priv: pointer to private area that was allocated for driver use along with
+ * this structure.
+ *
+ * @phy: This points to the &struct wpan_phy allocated for this 802.15.4 PHY.
+ */
struct ieee802154_hw {
/* filled by the driver */
int extra_tx_headroom;
u32 flags;
struct device *parent;
+ void *priv;
/* filled by mac802154 core */
- struct ieee802154_hw_addr_filt hw_filt;
- void *priv;
struct wpan_phy *phy;
- size_t vif_data_size;
};
-/* Checksum is in hardware and is omitted from a packet
+/**
+ * enum ieee802154_hw_flags - hardware flags
*
- * These following flags are used to indicate hardware capabilities to
+ * These flags are used to indicate hardware capabilities to
* the stack. Generally, flags here should have their meaning
* done in a way that the simplest hardware doesn't need setting
* any particular flags. There are some exceptions to this rule,
* however, so you are advised to review these flags carefully.
+ *
+ * @IEEE802154_HW_TX_OMIT_CKSUM: Indicates that xmitter will add FCS on it's
+ * own.
+ *
+ * @IEEE802154_HW_LBT: Indicates that transceiver will support listen before
+ * transmit.
+ *
+ * @IEEE802154_HW_CSMA_PARAMS: Indicates that transceiver will support csma
+ * parameters (max_be, min_be, backoff exponents).
+ *
+ * @IEEE802154_HW_FRAME_RETRIES: Indicates that transceiver will support ARET
+ * frame retries setting.
+ *
+ * @IEEE802154_HW_AFILT: Indicates that transceiver will support hardware
+ * address filter setting.
+ *
+ * @IEEE802154_HW_PROMISCUOUS: Indicates that transceiver will support
+ * promiscuous mode setting.
+ *
+ * @IEEE802154_HW_RX_OMIT_CKSUM: Indicates that receiver omits FCS.
+ *
+ * @IEEE802154_HW_RX_DROP_BAD_CKSUM: Indicates that receiver will not filter
+ * frames with bad checksum.
*/
-
-/* Indicates that xmitter will add FCS on it's own. */
-#define IEEE802154_HW_TX_OMIT_CKSUM 0x00000001
-/* Indicates that receiver will autorespond with ACK frames. */
-#define IEEE802154_HW_AACK 0x00000002
-/* Indicates that transceiver will support transmit power setting. */
-#define IEEE802154_HW_TXPOWER 0x00000004
-/* Indicates that transceiver will support listen before transmit. */
-#define IEEE802154_HW_LBT 0x00000008
-/* Indicates that transceiver will support cca mode setting. */
-#define IEEE802154_HW_CCA_MODE 0x00000010
-/* Indicates that transceiver will support cca ed level setting. */
-#define IEEE802154_HW_CCA_ED_LEVEL 0x00000020
-/* Indicates that transceiver will support csma (max_be, min_be, csma retries)
- * settings. */
-#define IEEE802154_HW_CSMA_PARAMS 0x00000040
-/* Indicates that transceiver will support ARET frame retries setting. */
-#define IEEE802154_HW_FRAME_RETRIES 0x00000080
-/* Indicates that transceiver will support hardware address filter setting. */
-#define IEEE802154_HW_AFILT 0x00000100
-/* Indicates that transceiver will support promiscuous mode setting. */
-#define IEEE802154_HW_PROMISCUOUS 0x00000200
-/* Indicates that receiver omits FCS. */
-#define IEEE802154_HW_RX_OMIT_CKSUM 0x00000400
-/* Indicates that receiver will not filter frames with bad checksum. */
-#define IEEE802154_HW_RX_DROP_BAD_CKSUM 0x00000800
+enum ieee802154_hw_flags {
+ IEEE802154_HW_TX_OMIT_CKSUM = BIT(0),
+ IEEE802154_HW_LBT = BIT(1),
+ IEEE802154_HW_CSMA_PARAMS = BIT(2),
+ IEEE802154_HW_FRAME_RETRIES = BIT(3),
+ IEEE802154_HW_AFILT = BIT(4),
+ IEEE802154_HW_PROMISCUOUS = BIT(5),
+ IEEE802154_HW_RX_OMIT_CKSUM = BIT(6),
+ IEEE802154_HW_RX_DROP_BAD_CKSUM = BIT(7),
+};
/* Indicates that receiver omits FCS and xmitter will add FCS on it's own. */
#define IEEE802154_HW_OMIT_CKSUM (IEEE802154_HW_TX_OMIT_CKSUM | \
IEEE802154_HW_RX_OMIT_CKSUM)
-/* This groups the most common CSMA support fields into one. */
-#define IEEE802154_HW_CSMA (IEEE802154_HW_CCA_MODE | \
- IEEE802154_HW_CCA_ED_LEVEL | \
- IEEE802154_HW_CSMA_PARAMS)
-
-/* This groups the most common ARET support fields into one. */
-#define IEEE802154_HW_ARET (IEEE802154_HW_CSMA | \
- IEEE802154_HW_FRAME_RETRIES)
-
/* struct ieee802154_ops - callbacks from mac802154 to the driver
*
* This structure contains various callbacks that the driver may
* Returns either zero, or negative errno.
*
* set_txpower:
- * Set radio transmit power in dB. Called with pib_lock held.
+ * Set radio transmit power in mBm. Called with pib_lock held.
* Returns either zero, or negative errno.
*
* set_lbt
* Returns either zero, or negative errno.
*
* set_cca_ed_level
- * Sets the CCA energy detection threshold in dBm. Called with pib_lock
+ * Sets the CCA energy detection threshold in mBm. Called with pib_lock
* held.
* Returns either zero, or negative errno.
*
int (*set_hw_addr_filt)(struct ieee802154_hw *hw,
struct ieee802154_hw_addr_filt *filt,
unsigned long changed);
- int (*set_txpower)(struct ieee802154_hw *hw, s8 dbm);
+ int (*set_txpower)(struct ieee802154_hw *hw, s32 mbm);
int (*set_lbt)(struct ieee802154_hw *hw, bool on);
int (*set_cca_mode)(struct ieee802154_hw *hw,
const struct wpan_phy_cca *cca);
- int (*set_cca_ed_level)(struct ieee802154_hw *hw,
- s32 level);
+ int (*set_cca_ed_level)(struct ieee802154_hw *hw, s32 mbm);
int (*set_csma_params)(struct ieee802154_hw *hw,
u8 min_be, u8 max_be, u8 retries);
int (*set_frame_retries)(struct ieee802154_hw *hw,
const bool on);
};
+/**
+ * ieee802154_get_fc_from_skb - get the frame control field from an skb
+ * @skb: skb where the frame control field will be get from
+ */
+static inline __le16 ieee802154_get_fc_from_skb(const struct sk_buff *skb)
+{
+ /* return some invalid fc on failure */
+ if (unlikely(skb->len < 2)) {
+ WARN_ON(1);
+ return cpu_to_le16(0);
+ }
+
+ return (__force __le16)__get_unaligned_memmove16(skb_mac_header(skb));
+}
+
/**
* ieee802154_be64_to_le64 - copies and convert be64 to le64
* @le64_dst: le64 destination pointer
__put_unaligned_memmove64(swab64p(le64_src), be64_dst);
}
+/**
+ * ieee802154_le16_to_be16 - copies and convert le16 to be16
+ * @be16_dst: be16 destination pointer
+ * @le16_src: le16 source pointer
+ */
+static inline void ieee802154_le16_to_be16(void *be16_dst, const void *le16_src)
+{
+ __put_unaligned_memmove16(swab16p(le16_src), be16_dst);
+}
+
/**
* ieee802154_alloc_hw - Allocate a new hardware device
*
*/
void ieee802154_unregister_hw(struct ieee802154_hw *hw);
-/**
- * ieee802154_rx - receive frame
- *
- * Use this function to hand received frames to mac802154. The receive
- * buffer in @skb must start with an IEEE 802.15.4 header. In case of a
- * paged @skb is used, the driver is recommended to put the ieee802154
- * header of the frame on the linear part of the @skb to avoid memory
- * allocation and/or memcpy by the stack.
- *
- * This function may not be called in IRQ context. Calls to this function
- * for a single hardware must be synchronized against each other.
- *
- * @hw: the hardware this frame came in on
- * @skb: the buffer to receive, owned by mac802154 after this call
- */
-void ieee802154_rx(struct ieee802154_hw *hw, struct sk_buff *skb);
-
/**
* ieee802154_rx_irqsafe - receive frame
*
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