X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fnet%2Fwireless%2Fiwlwifi%2Fiwl-trans.h;h=71a6fb05356a1f6d702962658c5a8b00477b4184;hb=522376d206da66cecc90929134ad70c0446e874b;hp=0691d39bce05abb4c0e59330e97be800417baa94;hpb=dfa2bdbab70901ddda3ec41f2e55f8396af9095f;p=pandora-kernel.git diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.h b/drivers/net/wireless/iwlwifi/iwl-trans.h index 0691d39bce05..71a6fb05356a 100644 --- a/drivers/net/wireless/iwlwifi/iwl-trans.h +++ b/drivers/net/wireless/iwlwifi/iwl-trans.h @@ -73,10 +73,70 @@ * layer */ struct iwl_priv; -struct iwl_rxon_context; -struct iwl_host_cmd; struct iwl_shared; -struct iwl_device_cmd; + +#define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4) +#define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ) +#define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4) + +enum { + CMD_SYNC = 0, + CMD_ASYNC = BIT(0), + CMD_WANT_SKB = BIT(1), + CMD_ON_DEMAND = BIT(2), +}; + +#define DEF_CMD_PAYLOAD_SIZE 320 + +/** + * struct iwl_device_cmd + * + * For allocation of the command and tx queues, this establishes the overall + * size of the largest command we send to uCode, except for commands that + * aren't fully copied and use other TFD space. + */ +struct iwl_device_cmd { + struct iwl_cmd_header hdr; /* uCode API */ + union { + u32 flags; + u8 val8; + u16 val16; + u32 val32; + struct iwl_tx_cmd tx; + struct iwl6000_channel_switch_cmd chswitch; + u8 payload[DEF_CMD_PAYLOAD_SIZE]; + } __packed cmd; +} __packed; + +#define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd)) + +#define IWL_MAX_CMD_TFDS 2 + +enum iwl_hcmd_dataflag { + IWL_HCMD_DFL_NOCOPY = BIT(0), +}; + +/** + * struct iwl_host_cmd - Host command to the uCode + * @data: array of chunks that composes the data of the host command + * @reply_page: pointer to the page that holds the response to the host command + * @callback: + * @flags: can be CMD_* note CMD_WANT_SKB is incompatible withe CMD_ASYNC + * @len: array of the lenths of the chunks in data + * @dataflags: + * @id: id of the host command + */ +struct iwl_host_cmd { + const void *data[IWL_MAX_CMD_TFDS]; + unsigned long reply_page; + void (*callback)(struct iwl_shared *shrd, + struct iwl_device_cmd *cmd, + struct iwl_rx_packet *pkt); + u32 flags; + u16 len[IWL_MAX_CMD_TFDS]; + u8 dataflags[IWL_MAX_CMD_TFDS]; + u8 id; +}; /** * struct iwl_trans_ops - transport specific operations @@ -88,17 +148,22 @@ struct iwl_device_cmd; * probe. * @tx_start: starts and configures all the Tx fifo - usually done once the fw * is alive. + * @wake_any_queue: wake all the queues of a specfic context IWL_RXON_CTX_* * @stop_device:stops the whole device (embedded CPU put to reset) * @send_cmd:send a host command * @send_cmd_pdu:send a host command: flags can be CMD_* * @tx: send an skb * @reclaim: free packet until ssn. Returns a list of freed packets. - * @txq_agg_setup: setup a tx queue for AMPDU - will be called once the HW is + * @tx_agg_alloc: allocate resources for a TX BA session + * @tx_agg_setup: setup a tx queue for AMPDU - will be called once the HW is * ready and a successful ADDBA response has been received. - * @txq_agg_disable: de-configure a Tx queue to send AMPDUs + * @tx_agg_disable: de-configure a Tx queue to send AMPDUs * @kick_nic: remove the RESET from the embedded CPU and let it run * @free: release all the ressource for the transport layer itself such as * irq, tasklet etc... + * @stop_queue: stop a specific queue + * @check_stuck_queue: check if a specific queue is stuck + * @wait_tx_queue_empty: wait until all tx queues are empty * @dbgfs_register: add the dbgfs files under this directory. Files will be * automatically deleted. * @suspend: stop the device unless WoWLAN is configured @@ -113,26 +178,38 @@ struct iwl_trans_ops { void (*stop_device)(struct iwl_trans *trans); void (*tx_start)(struct iwl_trans *trans); + void (*wake_any_queue)(struct iwl_trans *trans, u8 ctx); + int (*send_cmd)(struct iwl_trans *trans, struct iwl_host_cmd *cmd); int (*send_cmd_pdu)(struct iwl_trans *trans, u8 id, u32 flags, u16 len, const void *data); - int (*tx)(struct iwl_priv *priv, struct sk_buff *skb, - struct iwl_device_cmd *dev_cmd, - int txq_id, __le16 fc, bool ampdu); - void (*reclaim)(struct iwl_trans *trans, int txq_id, int ssn, - u32 status, struct sk_buff_head *skbs); - - int (*txq_agg_disable)(struct iwl_priv *priv, u16 txq_id); - void (*txq_agg_setup)(struct iwl_priv *priv, + int (*tx)(struct iwl_trans *trans, struct sk_buff *skb, + struct iwl_device_cmd *dev_cmd, u8 ctx, u8 sta_id); + void (*reclaim)(struct iwl_trans *trans, int sta_id, int tid, + int txq_id, int ssn, u32 status, + struct sk_buff_head *skbs); + + int (*tx_agg_disable)(struct iwl_trans *trans, enum iwl_rxon_context_id ctx, int sta_id, - int tid, int frame_limit); + int tid); + int (*tx_agg_alloc)(struct iwl_trans *trans, + enum iwl_rxon_context_id ctx, int sta_id, int tid, + u16 *ssn); + void (*tx_agg_setup)(struct iwl_trans *trans, + enum iwl_rxon_context_id ctx, int sta_id, int tid, + int frame_limit); void (*kick_nic)(struct iwl_trans *trans); void (*free)(struct iwl_trans *trans); + void (*stop_queue)(struct iwl_trans *trans, int q); + int (*dbgfs_register)(struct iwl_trans *trans, struct dentry* dir); + int (*check_stuck_queue)(struct iwl_trans *trans, int q); + int (*wait_tx_queue_empty)(struct iwl_trans *trans); + int (*suspend)(struct iwl_trans *trans); int (*resume)(struct iwl_trans *trans); }; @@ -178,6 +255,12 @@ static inline void iwl_trans_tx_start(struct iwl_trans *trans) trans->ops->tx_start(trans); } +static inline void iwl_trans_wake_any_queue(struct iwl_trans *trans, u8 ctx) +{ + trans->ops->wake_any_queue(trans, ctx); +} + + static inline int iwl_trans_send_cmd(struct iwl_trans *trans, struct iwl_host_cmd *cmd) { @@ -191,30 +274,39 @@ static inline int iwl_trans_send_cmd_pdu(struct iwl_trans *trans, u8 id, } static inline int iwl_trans_tx(struct iwl_trans *trans, struct sk_buff *skb, - struct iwl_device_cmd *dev_cmd, - int txq_id, __le16 fc, bool ampdu) + struct iwl_device_cmd *dev_cmd, u8 ctx, u8 sta_id) { - return trans->ops->tx(priv(trans), skb, dev_cmd, txq_id, fc, ampdu); + return trans->ops->tx(trans, skb, dev_cmd, ctx, sta_id); } -static inline void iwl_trans_reclaim(struct iwl_trans *trans, int txq_id, - int ssn, u32 status, +static inline void iwl_trans_reclaim(struct iwl_trans *trans, int sta_id, + int tid, int txq_id, int ssn, u32 status, struct sk_buff_head *skbs) { - trans->ops->reclaim(trans, txq_id, ssn, status, skbs); + trans->ops->reclaim(trans, sta_id, tid, txq_id, ssn, status, skbs); } -static inline int iwl_trans_txq_agg_disable(struct iwl_trans *trans, u16 txq_id) +static inline int iwl_trans_tx_agg_disable(struct iwl_trans *trans, + enum iwl_rxon_context_id ctx, + int sta_id, int tid) { - return trans->ops->txq_agg_disable(priv(trans), txq_id); + return trans->ops->tx_agg_disable(trans, ctx, sta_id, tid); } -static inline void iwl_trans_txq_agg_setup(struct iwl_trans *trans, +static inline int iwl_trans_tx_agg_alloc(struct iwl_trans *trans, + enum iwl_rxon_context_id ctx, + int sta_id, int tid, u16 *ssn) +{ + return trans->ops->tx_agg_alloc(trans, ctx, sta_id, tid, ssn); +} + + +static inline void iwl_trans_tx_agg_setup(struct iwl_trans *trans, enum iwl_rxon_context_id ctx, int sta_id, int tid, int frame_limit) { - trans->ops->txq_agg_setup(priv(trans), ctx, sta_id, tid, frame_limit); + trans->ops->tx_agg_setup(trans, ctx, sta_id, tid, frame_limit); } static inline void iwl_trans_kick_nic(struct iwl_trans *trans) @@ -227,6 +319,20 @@ static inline void iwl_trans_free(struct iwl_trans *trans) trans->ops->free(trans); } +static inline void iwl_trans_stop_queue(struct iwl_trans *trans, int q) +{ + trans->ops->stop_queue(trans, q); +} + +static inline int iwl_trans_wait_tx_queue_empty(struct iwl_trans *trans) +{ + return trans->ops->wait_tx_queue_empty(trans); +} + +static inline int iwl_trans_check_stuck_queue(struct iwl_trans *trans, int q) +{ + return trans->ops->check_stuck_queue(trans, q); +} static inline int iwl_trans_dbgfs_register(struct iwl_trans *trans, struct dentry *dir) {