1 /****************************************************************************** 2 * Copyright (c) 2022 Telink Semiconductor (Shanghai) Co., Ltd. ("TELINK") 3 * All rights reserved. 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 *****************************************************************************/ 18 19 #ifndef B91_BT_BUFFER_H_ 20 #define B91_BT_BUFFER_H_ 21 22 #include "stack/ble/ble.h" 23 #include "zephyr/bluetooth/buf.h" 24 25 #define BT_BUF_TX_SIZE \ 26 MAX(BT_BUF_CMD_SIZE(CONFIG_BT_BUF_CMD_TX_SIZE), BT_BUF_ACL_SIZE(CONFIG_BT_BUF_ACL_TX_SIZE)) 27 28 #define ACL_CONN_MAX_RX_OCTETS (BT_BUF_RX_SIZE > 251 ? 251 : BT_BUF_RX_SIZE) 29 #define ACL_SLAVE_MAX_TX_OCTETS (CONFIG_BT_BUF_ACL_TX_SIZE > 251 ? 251 : CONFIG_BT_BUF_ACL_TX_SIZE) 30 #define ACL_MASTER_MAX_TX_OCTETS (CONFIG_BT_BUF_ACL_TX_SIZE > 251 ? 251 : CONFIG_BT_BUF_ACL_TX_SIZE) 31 32 /* Macroses to align values to specific size */ 33 #define ALIGN_2 1 34 #define ALIGN_4 2 35 #define ALIGN_8 3 36 #define ALIGN_16 4 37 #define ALIGN(x, order) \ 38 (((x) % (1 << (order))) == 0 ? (x) : ((((x) >> (order)) << (order)) + (1 << order))) 39 40 /* Macro to find next power of two value */ 41 /* Found Here: https://lists.freebsd.org/pipermail/freebsd-current/2007-February/069093.html */ 42 #define NPOT2(x) ((x) | ((x) >> 1)) 43 #define NPOT4(x) (NPOT2(x) | (NPOT2(x) >> 2)) 44 #define NPOT8(x) (NPOT4(x) | (NPOT4(x) >> 4)) 45 #define NPOT16(x) (NPOT8(x) | (NPOT8(x) >> 8)) 46 #define NPOT32(x) (NPOT16(x) | (NPOT16(x) >> 16)) 47 #define NEXT_POWER_OF_2(x) (NPOT32(x - 1) + 1) 48 49 /* Macro to calculate ACL TX master/slave buffer number. */ 50 /* According to Telink implementation, shall be 9, 17 or 33 */ 51 #define CAL_LL_ACL_BUF_NUM(x) (x <= 9 ? 9 : x <= 17 ? 17 : 33) 52 53 /* 54 TX from host CMD or ACL buffer, RX to Contorller HCI buffer 55 According to Telink implementatios, the buffer shall be alligned to 16. 56 */ 57 #define HCI_RX_FIFO_SIZE HCI_FIFO_SIZE(BT_BUF_TX_SIZE) 58 59 /* 60 According to Telink implementation shall number of buffers shall be power of 2 61 */ 62 #define HCI_RX_FIFO_NUM NEXT_POWER_OF_2(MAX(CONFIG_BT_BUF_CMD_TX_COUNT, CONFIG_BT_BUF_ACL_TX_COUNT)) 63 64 /* 65 TX from controller, RX to Host 66 According to Telink implementatios, the buffer shall be alligned to 4. 67 */ 68 #define HCI_TX_FIFO_SIZE HCI_FIFO_SIZE(BT_BUF_RX_SIZE) 69 70 /* 71 According to Telink implementation shall number of buffers shall be power of 2 72 */ 73 #define HCI_TX_FIFO_NUM NEXT_POWER_OF_2(BT_BUF_RX_COUNT) 74 75 /* 76 Intermediate ACL buffer that takes data from HCI RX and pass it to ACL TX 77 According to Telink implementatios, the buffer shall be alligned to 4. 78 */ 79 #define HCI_RX_ACL_FIFO_SIZE ALIGN(BT_BUF_ACL_SIZE(CONFIG_BT_BUF_ACL_TX_SIZE), ALIGN_4) 80 81 /* 82 According to Telink implementation shall number of buffers shall be power of 2 83 */ 84 #define HCI_RX_ACL_FIFO_NUM NEXT_POWER_OF_2(CONFIG_BT_BUF_ACL_TX_COUNT) 85 86 /* 87 Data from radio to RX ACL buffer 88 According to Telink implementatios, the buffer shall be alligned to 16. 89 */ 90 #define ACL_RX_FIFO_SIZE CAL_LL_ACL_RX_FIFO_SIZE(BT_BUF_RX_SIZE) 91 92 /* 93 Number of ACL RX buffers. Shall be power of 2 94 */ 95 #define ACL_RX_FIFO_NUM NEXT_POWER_OF_2(BT_BUF_RX_COUNT) 96 97 /* 98 Data from ACL TX to radio 99 According to Telink implementatios, the buffer shall be alligned to 16. 100 */ 101 #define ACL_SLAVE_TX_FIFO_SIZE CAL_LL_ACL_TX_FIFO_SIZE(CONFIG_BT_BUF_ACL_TX_SIZE) 102 103 /* 104 Number of ACL TX buffers. Shall be 9, 17, 33 105 */ 106 #define ACL_SLAVE_TX_FIFO_NUM CAL_LL_ACL_BUF_NUM(CONFIG_BT_BUF_ACL_TX_COUNT) 107 108 /* 109 Data from ACL TX to radio 110 According to Telink implementatios, the buffer shall be alligned to 16. 111 */ 112 #define ACL_MASTER_TX_FIFO_SIZE CAL_LL_ACL_TX_FIFO_SIZE(CONFIG_BT_BUF_ACL_TX_SIZE) 113 114 /* 115 Number of ACL TX buffers. Shall be 9, 17, 33 116 */ 117 #define ACL_MASTER_TX_FIFO_NUM CAL_LL_ACL_BUF_NUM(CONFIG_BT_BUF_ACL_TX_COUNT) 118 119 extern u8 app_acl_rxfifo[]; 120 extern u8 app_acl_mstTxfifo[]; 121 extern u8 app_acl_slvTxfifo[]; 122 123 extern u8 app_hci_rxfifo[]; 124 extern u8 app_hci_txfifo[]; 125 extern u8 app_hci_rxAclfifo[]; 126 127 #endif /* B91_BT_BUFFER_H_ */ 128
