diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-trans.h')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-trans.h | 225 |
1 files changed, 225 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.h b/drivers/net/wireless/iwlwifi/iwl-trans.h new file mode 100644 index 000000000000..7993aa7ae668 --- /dev/null +++ b/drivers/net/wireless/iwlwifi/iwl-trans.h @@ -0,0 +1,225 @@ +/****************************************************************************** + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2007 - 2011 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, + * USA + * + * The full GNU General Public License is included in this distribution + * in the file called LICENSE.GPL. + * + * Contact Information: + * Intel Linux Wireless <ilw@linux.intel.com> + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + * + * BSD LICENSE + * + * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + *****************************************************************************/ +#ifndef __iwl_trans_h__ +#define __iwl_trans_h__ + + /*This file includes the declaration that are exported from the transport + * layer */ + +struct iwl_priv; +struct iwl_rxon_context; +struct iwl_host_cmd; + +/** + * struct iwl_trans_ops - transport specific operations + * @start_device: allocates and inits all the resources for the transport + * layer. + * @prepare_card_hw: claim the ownership on the HW. Will be called during + * probe. + * @tx_start: starts and configures all the Tx fifo - usually done once the fw + * is alive. + * @stop_device:stops the whole device (embedded CPU put to reset) + * @rx_free: frees the rx memory + * @tx_free: frees the tx memory + * @send_cmd:send a host command + * @send_cmd_pdu:send a host command: flags can be CMD_* + * @get_tx_cmd: returns a pointer to a new Tx cmd for the upper layer use + * @tx: send an skb + * @txq_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 + * @kick_nic: remove the RESET from the embedded CPU and let it run + * @sync_irq: the upper layer will typically disable interrupt and call this + * handler. After this handler returns, it is guaranteed that all + * the ISR / tasklet etc... have finished running and the transport + * layer shall not pass any Rx. + * @free: release all the ressource for the transport layer itself such as + * irq, tasklet etc... + */ +struct iwl_trans_ops { + + int (*start_device)(struct iwl_priv *priv); + int (*prepare_card_hw)(struct iwl_priv *priv); + void (*stop_device)(struct iwl_priv *priv); + void (*tx_start)(struct iwl_priv *priv); + void (*tx_free)(struct iwl_priv *priv); + void (*rx_free)(struct iwl_priv *priv); + + int (*send_cmd)(struct iwl_priv *priv, struct iwl_host_cmd *cmd); + + int (*send_cmd_pdu)(struct iwl_priv *priv, u8 id, u32 flags, u16 len, + const void *data); + struct iwl_tx_cmd * (*get_tx_cmd)(struct iwl_priv *priv, int txq_id); + int (*tx)(struct iwl_priv *priv, struct sk_buff *skb, + struct iwl_tx_cmd *tx_cmd, int txq_id, __le16 fc, bool ampdu, + struct iwl_rxon_context *ctx); + + int (*txq_agg_disable)(struct iwl_priv *priv, u16 txq_id, + u16 ssn_idx, u8 tx_fifo); + void (*txq_agg_setup)(struct iwl_priv *priv, int sta_id, int tid, + int frame_limit); + + void (*kick_nic)(struct iwl_priv *priv); + + void (*sync_irq)(struct iwl_priv *priv); + void (*free)(struct iwl_priv *priv); +}; + +struct iwl_trans { + const struct iwl_trans_ops *ops; + struct iwl_priv *priv; +}; + +static inline int trans_start_device(struct iwl_trans *trans) +{ + return trans->ops->start_device(trans->priv); +} + +static inline int trans_prepare_card_hw(struct iwl_trans *trans) +{ + return trans->ops->prepare_card_hw(trans->priv); +} + +static inline void trans_stop_device(struct iwl_trans *trans) +{ + trans->ops->stop_device(trans->priv); +} + +static inline void trans_tx_start(struct iwl_trans *trans) +{ + trans->ops->tx_start(trans->priv); +} + +static inline void trans_rx_free(struct iwl_trans *trans) +{ + trans->ops->rx_free(trans->priv); +} + +static inline void trans_tx_free(struct iwl_trans *trans) +{ + trans->ops->tx_free(trans->priv); +} + +static inline int trans_send_cmd(struct iwl_trans *trans, + struct iwl_host_cmd *cmd) +{ + return trans->ops->send_cmd(trans->priv, cmd); +} + +static inline int trans_send_cmd_pdu(struct iwl_trans *trans, u8 id, u32 flags, + u16 len, const void *data) +{ + return trans->ops->send_cmd_pdu(trans->priv, id, flags, len, data); +} + +static inline struct iwl_tx_cmd *trans_get_tx_cmd(struct iwl_trans *trans, + int txq_id) +{ + return trans->ops->get_tx_cmd(trans->priv, txq_id); +} + +static inline int trans_tx(struct iwl_trans *trans, struct sk_buff *skb, + struct iwl_tx_cmd *tx_cmd, int txq_id, __le16 fc, bool ampdu, + struct iwl_rxon_context *ctx) +{ + return trans->ops->tx(trans->priv, skb, tx_cmd, txq_id, fc, ampdu, ctx); +} + +static inline int trans_txq_agg_disable(struct iwl_trans *trans, u16 txq_id, + u16 ssn_idx, u8 tx_fifo) +{ + return trans->ops->txq_agg_disable(trans->priv, txq_id, + ssn_idx, tx_fifo); +} + +static inline void trans_txq_agg_setup(struct iwl_trans *trans, int sta_id, + int tid, int frame_limit) +{ + trans->ops->txq_agg_setup(trans->priv, sta_id, tid, frame_limit); +} + +static inline void trans_kick_nic(struct iwl_trans *trans) +{ + trans->ops->kick_nic(trans->priv); +} + +static inline void trans_sync_irq(struct iwl_trans *trans) +{ + trans->ops->sync_irq(trans->priv); +} + +static inline void trans_free(struct iwl_trans *trans) +{ + trans->ops->free(trans->priv); +} + +int iwl_trans_register(struct iwl_trans *trans, struct iwl_priv *priv); + +/*TODO: this functions should NOT be exported from trans module - export it + * until the reclaim flow will be brought to the transport module too */ + +struct iwl_tx_queue; +void iwlagn_txq_inval_byte_cnt_tbl(struct iwl_priv *priv, + struct iwl_tx_queue *txq); + +#endif /* __iwl_trans_h__ */ |