1 /* 2 * Copyright (c) 2017-2018 The Linux Foundation. All rights reserved. 3 * 4 * Permission to use, copy, modify, and/or distribute this software for 5 * any purpose with or without fee is hereby granted, provided that the 6 * above copyright notice and this permission notice appear in all 7 * copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL 10 * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED 11 * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE 12 * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL 13 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR 14 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER 15 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 16 * PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 #ifndef _TARGET_IF_DIRECT_BUF_RX_API_H_ 20 #define _TARGET_IF_DIRECT_BUF_RX_API_H_ 21 22 #include "qdf_nbuf.h" 23 #include "qdf_atomic.h" 24 25 #define direct_buf_alert(params...) \ 26 QDF_TRACE_FATAL(QDF_MODULE_ID_DIRECT_BUF_RX, params) 27 #define direct_buf_rx_err(params...) \ 28 QDF_TRACE_ERROR(QDF_MODULE_ID_DIRECT_BUF_RX, params) 29 #define direct_buf_rx_warn(params...) \ 30 QDF_TRACE_WARN(QDF_MODULE_ID_DIRECT_BUF_RX, params) 31 #define direct_buf_rx_notice(params...) \ 32 QDF_TRACE_INFO(QDF_MODULE_ID_DIRECT_BUF_RX, params) 33 #define direct_buf_rx_info(params...) \ 34 QDF_TRACE_INFO(QDF_MODULE_ID_DIRECT_BUF_RX, params) 35 #define direct_buf_rx_debug(params...) \ 36 QDF_TRACE_DEBUG(QDF_MODULE_ID_DIRECT_BUF_RX, params) 37 #define direct_buf_rx_enter() \ 38 direct_buf_rx_debug("enter") 39 #define direct_buf_rx_exit() \ 40 direct_buf_rx_debug("exit") 41 42 #define DBR_MAX_CHAINS (8) 43 44 struct wlan_objmgr_psoc; 45 struct wlan_lmac_if_tx_ops; 46 47 /** 48 * struct direct_buf_rx_data - direct buffer rx data 49 * @dbr_len: Length of the buffer DMAed 50 * @vaddr: Virtual address of the buffer that has DMAed data 51 * @meta_data_valid: Indicates that metadata is valid 52 * @meta_data: Meta data 53 */ 54 struct direct_buf_rx_data { 55 size_t dbr_len; 56 void *vaddr; 57 bool meta_data_valid; 58 struct direct_buf_rx_metadata meta_data; 59 }; 60 61 /** 62 * direct_buf_rx_init() - Function to initialize direct buf rx module 63 * 64 * Return: QDF status of operation 65 */ 66 QDF_STATUS direct_buf_rx_init(void); 67 68 /** 69 * direct_buf_rx_deinit() - Function to deinitialize direct buf rx module 70 * 71 * Return: QDF status of operation 72 */ 73 QDF_STATUS direct_buf_rx_deinit(void); 74 75 /** 76 * direct_buf_rx_target_attach() - Attach hal_soc,osdev in direct buf rx psoc obj 77 * @psoc: pointer to psoc object 78 * @hal_soc: Opaque HAL SOC handle 79 * @osdev: QDF os device handle 80 * 81 * Return: QDF status of operation 82 */ 83 QDF_STATUS direct_buf_rx_target_attach(struct wlan_objmgr_psoc *psoc, 84 void *hal_soc, qdf_device_t osdev); 85 86 /** 87 * target_if_direct_buf_rx_register_tx_ops() - Register tx ops for direct buffer 88 * rx module 89 * @tx_ops: pointer to lmac interface tx ops 90 * 91 * Return: None 92 */ 93 void target_if_direct_buf_rx_register_tx_ops( 94 struct wlan_lmac_if_tx_ops *tx_ops); 95 96 #endif /* _TARGET_IF_DIRECT_BUF_RX_API_H_ */ 97