1 /* 2 * Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved. 3 * 4 * Permission to use, copy, modify, and/or distribute this software for any 5 * purpose with or without fee is hereby granted, provided that the above 6 * copyright notice and this permission notice appear in all copies. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15 */ 16 17 18 #ifndef _RX_PREAMBLE_H_ 19 #define _RX_PREAMBLE_H_ 20 21 #define NUM_OF_DWORDS_RX_PREAMBLE 1 22 23 struct rx_preamble { 24 #ifndef WIFI_BIT_ORDER_BIG_ENDIAN 25 uint32_t num_users : 6, 26 pkt_type : 4, 27 direction : 1, 28 reserved_0a : 21; 29 #else 30 uint32_t reserved_0a : 21, 31 direction : 1, 32 pkt_type : 4, 33 num_users : 6; 34 #endif 35 }; 36 37 #define RX_PREAMBLE_NUM_USERS_OFFSET 0x00000000 38 #define RX_PREAMBLE_NUM_USERS_LSB 0 39 #define RX_PREAMBLE_NUM_USERS_MSB 5 40 #define RX_PREAMBLE_NUM_USERS_MASK 0x0000003f 41 42 #define RX_PREAMBLE_PKT_TYPE_OFFSET 0x00000000 43 #define RX_PREAMBLE_PKT_TYPE_LSB 6 44 #define RX_PREAMBLE_PKT_TYPE_MSB 9 45 #define RX_PREAMBLE_PKT_TYPE_MASK 0x000003c0 46 47 #define RX_PREAMBLE_DIRECTION_OFFSET 0x00000000 48 #define RX_PREAMBLE_DIRECTION_LSB 10 49 #define RX_PREAMBLE_DIRECTION_MSB 10 50 #define RX_PREAMBLE_DIRECTION_MASK 0x00000400 51 52 #define RX_PREAMBLE_RESERVED_0A_OFFSET 0x00000000 53 #define RX_PREAMBLE_RESERVED_0A_LSB 11 54 #define RX_PREAMBLE_RESERVED_0A_MSB 31 55 #define RX_PREAMBLE_RESERVED_0A_MASK 0xfffff800 56 57 #endif 58