| /* |
| * Copyright (c) 2012, The Linux Foundation. All rights reserved. |
| * |
| * Previously licensed under the ISC license by Qualcomm Atheros, Inc. |
| * |
| * |
| * Permission to use, copy, modify, and/or distribute this software for |
| * any purpose with or without fee is hereby granted, provided that the |
| * above copyright notice and this permission notice appear in all |
| * copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL |
| * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE |
| * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL |
| * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
| * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| * PERFORMANCE OF THIS SOFTWARE. |
| */ |
| |
| #if !defined( WLAN_HDD_TX_RX_H ) |
| #define WLAN_HDD_TX_RX_H |
| |
| /**=========================================================================== |
| |
| \file wlan_hdd_tx_rx.h |
| |
| \brief Linux HDD Tx/RX APIs |
| Copyright 2008 (c) Qualcomm, Incorporated. |
| All Rights Reserved. |
| Qualcomm Confidential and Proprietary. |
| |
| ==========================================================================*/ |
| |
| /*--------------------------------------------------------------------------- |
| Include files |
| -------------------------------------------------------------------------*/ |
| #include <wlan_hdd_includes.h> |
| #include <vos_api.h> |
| #include <linux/skbuff.h> |
| #include <wlan_qct_tl.h> |
| |
| /*--------------------------------------------------------------------------- |
| Preprocessor definitions and constants |
| -------------------------------------------------------------------------*/ |
| #define HDD_ETHERTYPE_802_1_X ( 0x888E ) |
| #define HDD_ETHERTYPE_802_1_X_FRAME_OFFSET ( 12 ) |
| #define HDD_ETHERTYPE_802_1_X_SIZE ( 2 ) |
| #ifdef FEATURE_WLAN_WAPI |
| #define HDD_ETHERTYPE_WAI ( 0x88b4 ) |
| #endif |
| |
| #define HDD_80211_HEADER_LEN 24 |
| #define HDD_80211_HEADER_QOS_CTL 2 |
| #define HDD_LLC_HDR_LEN 6 |
| #define HDD_FRAME_TYPE_MASK 0x0c |
| #define HDD_FRAME_SUBTYPE_MASK 0xf0 |
| #define HDD_FRAME_TYPE_DATA 0x08 |
| #define HDD_FRAME_TYPE_MGMT 0x00 |
| #define HDD_FRAME_SUBTYPE_QOSDATA 0x80 |
| #define HDD_FRAME_SUBTYPE_DEAUTH 0xC0 |
| #define HDD_FRAME_SUBTYPE_DISASSOC 0xA0 |
| #define HDD_DEST_ADDR_OFFSET 6 |
| |
| #define HDD_MAC_HDR_SIZE 6 |
| /*--------------------------------------------------------------------------- |
| Type declarations |
| -------------------------------------------------------------------------*/ |
| |
| /*--------------------------------------------------------------------------- |
| Function declarations and documenation |
| -------------------------------------------------------------------------*/ |
| |
| /**============================================================================ |
| @brief hdd_hard_start_xmit() - Function registered with the Linux OS for |
| transmitting packets |
| |
| @param skb : [in] pointer to OS packet (sk_buff) |
| @param dev : [in] pointer to Libra network device |
| |
| @return : NET_XMIT_DROP if packets are dropped |
| : NET_XMIT_SUCCESS if packet is enqueued succesfully |
| ===========================================================================*/ |
| extern int hdd_hard_start_xmit(struct sk_buff *skb, struct net_device *dev); |
| |
| #ifdef CONFIG_CFG80211 |
| extern int hdd_mon_hard_start_xmit(struct sk_buff *skb, struct net_device *dev); |
| #endif |
| /**============================================================================ |
| @brief hdd_tx_timeout() - Function called by OS if there is any |
| timeout during transmission. Since HDD simply enqueues packet |
| and returns control to OS right away, this would never be invoked |
| |
| @param dev : [in] pointer to Libra network device |
| @return : None |
| ===========================================================================*/ |
| extern void hdd_tx_timeout(struct net_device *dev); |
| |
| /**============================================================================ |
| @brief hdd_stats() - Function registered with the Linux OS for |
| device TX/RX statistics |
| |
| @param dev : [in] pointer to Libra network device |
| |
| @return : pointer to net_device_stats structure |
| ===========================================================================*/ |
| extern struct net_device_stats* hdd_stats(struct net_device *dev); |
| |
| /**============================================================================ |
| @brief hdd_init_tx_rx() - Init function to initialize Tx/RX |
| modules in HDD |
| |
| @param pAdapter : [in] pointer to adapter context |
| @return : VOS_STATUS_E_FAILURE if any errors encountered |
| : VOS_STATUS_SUCCESS otherwise |
| ===========================================================================*/ |
| extern VOS_STATUS hdd_init_tx_rx( hdd_adapter_t *pAdapter ); |
| |
| /**============================================================================ |
| @brief hdd_deinit_tx_rx() - Deinit function to clean up Tx/RX |
| modules in HDD |
| |
| @param pAdapter : [in] pointer to adapter context |
| @return : VOS_STATUS_E_FAILURE if any errors encountered |
| : VOS_STATUS_SUCCESS otherwise |
| ===========================================================================*/ |
| extern VOS_STATUS hdd_deinit_tx_rx( hdd_adapter_t *pAdapter ); |
| |
| /**============================================================================ |
| @brief hdd_disconnect_tx_rx() - Disconnect function to clean up Tx/RX |
| modules in HDD |
| |
| @param pAdapter : [in] pointer to adapter context |
| @return : VOS_STATUS_E_FAILURE if any errors encountered |
| : VOS_STATUS_SUCCESS otherwise |
| ===========================================================================*/ |
| extern VOS_STATUS hdd_disconnect_tx_rx( hdd_adapter_t *pAdapter ); |
| |
| /**============================================================================ |
| @brief hdd_tx_complete_cbk() - Callback function invoked by TL |
| to indicate that a packet has been transmitted across the SDIO bus |
| succesfully. OS packet resources can be released after this cbk. |
| |
| @param vosContext : [in] pointer to VOS context |
| @param pVosPacket : [in] pointer to VOS packet (containing skb) |
| @param vosStatusIn : [in] status of the transmission |
| |
| @return : VOS_STATUS_E_FAILURE if any errors encountered |
| : VOS_STATUS_SUCCESS otherwise |
| ===========================================================================*/ |
| extern VOS_STATUS hdd_tx_complete_cbk( v_VOID_t *vosContext, |
| vos_pkt_t *pVosPacket, |
| VOS_STATUS vosStatusIn ); |
| |
| /**============================================================================ |
| @brief hdd_tx_fetch_packet_cbk() - Callback function invoked by TL to |
| fetch a packet for transmission. |
| |
| @param vosContext : [in] pointer to VOS context |
| @param staId : [in] Station for which TL is requesting a pkt |
| @param ucAC : [in] pointer to access category requested by TL |
| @param pVosPacket : [out] pointer to VOS packet packet pointer |
| @param pPktMetaInfo : [out] pointer to meta info for the pkt |
| |
| @return : VOS_STATUS_E_EMPTY if no packets to transmit |
| : VOS_STATUS_E_FAILURE if any errors encountered |
| : VOS_STATUS_SUCCESS otherwise |
| ===========================================================================*/ |
| extern VOS_STATUS hdd_tx_fetch_packet_cbk( v_VOID_t *vosContext, |
| v_U8_t *pStaId, |
| WLANTL_ACEnumType ucAC, |
| vos_pkt_t **ppVosPacket, |
| WLANTL_MetaInfoType *pPktMetaInfo ); |
| |
| /**============================================================================ |
| @brief hdd_tx_low_resource_cbk() - Callback function invoked in the |
| case where VOS packets are not available at the time of the call to get |
| packets. This callback function is invoked by VOS when packets are |
| available. |
| |
| @param pVosPacket : [in] pointer to VOS packet |
| @param userData : [in] opaque user data that was passed initially |
| |
| @return : VOS_STATUS_E_FAILURE if any errors encountered, |
| : VOS_STATUS_SUCCESS otherwise |
| =============================================================================*/ |
| extern VOS_STATUS hdd_tx_low_resource_cbk( vos_pkt_t *pVosPacket, |
| v_VOID_t *userData ); |
| |
| /**============================================================================ |
| @brief hdd_rx_packet_cbk() - Receive callback registered with TL. |
| TL will call this to notify the HDD when a packet was received |
| for a registered STA. |
| |
| @param vosContext : [in] pointer to VOS context |
| @param pVosPacket : [in] pointer to VOS packet (conatining sk_buff) |
| @param staId : [in] Station Id |
| @param pRxMetaInfo : [in] pointer to meta info for the received pkt(s) |
| |
| @return : VOS_STATUS_E_FAILURE if any errors encountered, |
| : VOS_STATUS_SUCCESS otherwise |
| ===========================================================================*/ |
| extern VOS_STATUS hdd_rx_packet_cbk( v_VOID_t *vosContext, |
| vos_pkt_t *pVosPacket, |
| v_U8_t staId, |
| WLANTL_RxMetaInfoType* pRxMetaInfo ); |
| |
| #ifdef WLAN_SOFTAP_FEATURE |
| |
| /**============================================================================ |
| @brief hdd_IsEAPOLPacket() - Checks the packet is EAPOL or not. |
| |
| @param pVosPacket : [in] pointer to vos packet |
| @return : VOS_TRUE if the packet is EAPOL |
| : VOS_FALSE otherwise |
| ===========================================================================*/ |
| extern v_BOOL_t hdd_IsEAPOLPacket( vos_pkt_t *pVosPacket ); |
| #endif |
| |
| #ifdef CONFIG_CFG80211 |
| /**============================================================================ |
| @brief hdd_mon_tx_mgmt_pkt() - Transmit MGMT packet received on monitor |
| interface. |
| |
| @param pAdapter: [in] SAP/P2P GO adaptor. |
| ===========================================================================*/ |
| void hdd_mon_tx_mgmt_pkt(hdd_adapter_t* pAdapter); |
| |
| /**============================================================================ |
| @brief hdd_mon_tx_work_queue() - workqueue handler for transmitting mgmt packets.. |
| |
| @param work: [in] workqueue structure. |
| ===========================================================================*/ |
| void hdd_mon_tx_work_queue(struct work_struct *work); |
| #endif |
| |
| #endif // end #if !defined( WLAN_HDD_TX_RX_H ) |