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@@ -60,95 +60,166 @@
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*****************************************************************************/
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+#ifndef __iwl_trans_h__
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+#define __iwl_trans_h__
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/*This file includes the declaration that are exported from the transport
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* layer */
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-static inline int trans_start_device(struct iwl_priv *priv)
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+struct iwl_priv;
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+struct iwl_rxon_context;
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+struct iwl_host_cmd;
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+
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+/**
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+ * struct iwl_trans_ops - transport specific operations
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+ * @start_device: allocates and inits all the resources for the transport
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+ * layer.
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+ * @prepare_card_hw: claim the ownership on the HW. Will be called during
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+ * probe.
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+ * @tx_start: starts and configures all the Tx fifo - usually done once the fw
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+ * is alive.
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+ * @stop_device:stops the whole device (embedded CPU put to reset)
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+ * @rx_free: frees the rx memory
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+ * @tx_free: frees the tx memory
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+ * @send_cmd:send a host command
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+ * @send_cmd_pdu:send a host command: flags can be CMD_*
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+ * @get_tx_cmd: returns a pointer to a new Tx cmd for the upper layer use
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+ * @tx: send an skb
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+ * @txq_agg_setup: setup a tx queue for AMPDU - will be called once the HW is
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+ * ready and a successful ADDBA response has been received.
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+ * @txq_agg_disable: de-configure a Tx queue to send AMPDUs
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+ * @kick_nic: remove the RESET from the embedded CPU and let it run
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+ * @sync_irq: the upper layer will typically disable interrupt and call this
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+ * handler. After this handler returns, it is guaranteed that all
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+ * the ISR / tasklet etc... have finished running and the transport
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+ * layer shall not pass any Rx.
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+ * @free: release all the ressource for the transport layer itself such as
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+ * irq, tasklet etc...
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+ */
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+struct iwl_trans_ops {
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+
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+ int (*start_device)(struct iwl_priv *priv);
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+ int (*prepare_card_hw)(struct iwl_priv *priv);
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+ void (*stop_device)(struct iwl_priv *priv);
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+ void (*tx_start)(struct iwl_priv *priv);
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+ void (*tx_free)(struct iwl_priv *priv);
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+ void (*rx_free)(struct iwl_priv *priv);
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+
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+ int (*send_cmd)(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
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+
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+ int (*send_cmd_pdu)(struct iwl_priv *priv, u8 id, u32 flags, u16 len,
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+ const void *data);
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+ struct iwl_tx_cmd * (*get_tx_cmd)(struct iwl_priv *priv, int txq_id);
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+ int (*tx)(struct iwl_priv *priv, struct sk_buff *skb,
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+ struct iwl_tx_cmd *tx_cmd, int txq_id, __le16 fc, bool ampdu,
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+ struct iwl_rxon_context *ctx);
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+
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+ int (*txq_agg_disable)(struct iwl_priv *priv, u16 txq_id,
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+ u16 ssn_idx, u8 tx_fifo);
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+ void (*txq_agg_setup)(struct iwl_priv *priv, int sta_id, int tid,
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+ int frame_limit);
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+
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+ void (*kick_nic)(struct iwl_priv *priv);
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+
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+ void (*sync_irq)(struct iwl_priv *priv);
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+ void (*free)(struct iwl_priv *priv);
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+};
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+
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+struct iwl_trans {
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+ const struct iwl_trans_ops *ops;
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+ struct iwl_priv *priv;
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+};
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+
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+static inline int trans_start_device(struct iwl_trans *trans)
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{
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- return priv->trans.ops->start_device(priv);
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+ return trans->ops->start_device(trans->priv);
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}
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-static inline int trans_prepare_card_hw(struct iwl_priv *priv)
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+static inline int trans_prepare_card_hw(struct iwl_trans *trans)
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{
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- return priv->trans.ops->prepare_card_hw(priv);
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+ return trans->ops->prepare_card_hw(trans->priv);
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}
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-static inline void trans_stop_device(struct iwl_priv *priv)
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+static inline void trans_stop_device(struct iwl_trans *trans)
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{
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- priv->trans.ops->stop_device(priv);
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+ trans->ops->stop_device(trans->priv);
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}
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-static inline void trans_tx_start(struct iwl_priv *priv)
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+static inline void trans_tx_start(struct iwl_trans *trans)
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{
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- priv->trans.ops->tx_start(priv);
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+ trans->ops->tx_start(trans->priv);
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}
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-static inline void trans_rx_free(struct iwl_priv *priv)
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+static inline void trans_rx_free(struct iwl_trans *trans)
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{
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- priv->trans.ops->rx_free(priv);
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+ trans->ops->rx_free(trans->priv);
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}
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-static inline void trans_tx_free(struct iwl_priv *priv)
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+static inline void trans_tx_free(struct iwl_trans *trans)
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{
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- priv->trans.ops->tx_free(priv);
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+ trans->ops->tx_free(trans->priv);
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}
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-static inline int trans_send_cmd(struct iwl_priv *priv,
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+static inline int trans_send_cmd(struct iwl_trans *trans,
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struct iwl_host_cmd *cmd)
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{
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- return priv->trans.ops->send_cmd(priv, cmd);
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+ return trans->ops->send_cmd(trans->priv, cmd);
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}
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-static inline int trans_send_cmd_pdu(struct iwl_priv *priv, u8 id, u32 flags,
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+static inline int trans_send_cmd_pdu(struct iwl_trans *trans, u8 id, u32 flags,
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u16 len, const void *data)
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{
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- return priv->trans.ops->send_cmd_pdu(priv, id, flags, len, data);
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+ return trans->ops->send_cmd_pdu(trans->priv, id, flags, len, data);
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}
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-static inline struct iwl_tx_cmd *trans_get_tx_cmd(struct iwl_priv *priv,
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+static inline struct iwl_tx_cmd *trans_get_tx_cmd(struct iwl_trans *trans,
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int txq_id)
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{
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- return priv->trans.ops->get_tx_cmd(priv, txq_id);
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+ return trans->ops->get_tx_cmd(trans->priv, txq_id);
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}
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-static inline int trans_tx(struct iwl_priv *priv, struct sk_buff *skb,
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+static inline int trans_tx(struct iwl_trans *trans, struct sk_buff *skb,
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struct iwl_tx_cmd *tx_cmd, int txq_id, __le16 fc, bool ampdu,
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struct iwl_rxon_context *ctx)
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{
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- return priv->trans.ops->tx(priv, skb, tx_cmd, txq_id, fc, ampdu, ctx);
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+ return trans->ops->tx(trans->priv, skb, tx_cmd, txq_id, fc, ampdu, ctx);
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}
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-static inline int trans_txq_agg_disable(struct iwl_priv *priv, u16 txq_id,
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+static inline int trans_txq_agg_disable(struct iwl_trans *trans, u16 txq_id,
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u16 ssn_idx, u8 tx_fifo)
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{
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- return priv->trans.ops->txq_agg_disable(priv, txq_id, ssn_idx, tx_fifo);
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+ return trans->ops->txq_agg_disable(trans->priv, txq_id,
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+ ssn_idx, tx_fifo);
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}
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-static inline void trans_txq_agg_setup(struct iwl_priv *priv, int sta_id,
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+static inline void trans_txq_agg_setup(struct iwl_trans *trans, int sta_id,
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int tid, int frame_limit)
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{
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- priv->trans.ops->txq_agg_setup(priv, sta_id, tid, frame_limit);
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+ trans->ops->txq_agg_setup(trans->priv, sta_id, tid, frame_limit);
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}
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-static inline void trans_kick_nic(struct iwl_priv *priv)
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+static inline void trans_kick_nic(struct iwl_trans *trans)
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{
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- priv->trans.ops->kick_nic(priv);
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+ trans->ops->kick_nic(trans->priv);
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}
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-static inline void trans_sync_irq(struct iwl_priv *priv)
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+static inline void trans_sync_irq(struct iwl_trans *trans)
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{
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- priv->trans.ops->sync_irq(priv);
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+ trans->ops->sync_irq(trans->priv);
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}
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-static inline void trans_free(struct iwl_priv *priv)
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+static inline void trans_free(struct iwl_trans *trans)
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{
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- priv->trans.ops->free(priv);
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+ trans->ops->free(trans->priv);
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}
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-int iwl_trans_register(struct iwl_priv *priv);
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+int iwl_trans_register(struct iwl_trans *trans, struct iwl_priv *priv);
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/*TODO: this functions should NOT be exported from trans module - export it
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* until the reclaim flow will be brought to the transport module too */
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+
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+struct iwl_tx_queue;
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void iwlagn_txq_inval_byte_cnt_tbl(struct iwl_priv *priv,
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struct iwl_tx_queue *txq);
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+
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+#endif /* __iwl_trans_h__ */
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Emmanuel Grumbach