1 /****************************************************************************** 2 * 3 * Copyright (C) 2015 Motorola Corporation 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 /****************************************************************************** 20 * 21 * Filename: bt_vendor_brcm_a2dp.h 22 * 23 * Description: Contains definitions specific for interfacing with Broadcom 24 * Bluetooth chipsets for A2DP Offload implementation. 25 * 26 ******************************************************************************/ 27 28 #ifndef BT_VENDOR_BRCM_A2DP_H 29 #define BT_VENDOR_BRCM_A2DP_H 30 31 #include "bt_vendor_brcm.h" 32 #include "bt_target.h" 33 #include "uipc_msg.h" 34 35 /****************************************************************************** 36 ** Constants & Macros 37 ******************************************************************************/ 38 39 #define HCI_VSC_WRITE_PCM_PINS 0xFC61 40 #define HCI_VSC_READ_PCM_PINS 0xFC62 41 #define HCI_VSC_UIPC_OVER_HCI 0xFC8B 42 43 /* pinmux for I2S pins */ 44 #define PCM_PIN_FCN_GPIO 0x00 45 #define PCM_PIN_FCN_PCM 0x01 46 #define PCM_PIN_FCN_I2S_MASTER 0x05 47 #define PCM_PIN_FCN_I2S_SLAVE 0x07 48 #define PCM_PIN_FCN_INVALID 0xFF 49 50 /* PADCONF for I2S pins */ 51 /* From LSB, byte map to DIN, DOUT, WS, CLK */ 52 /* 53 bit 0: 0 OUTPUT, 1 INPUT 54 bit 1: 0 NO-PULL,1 PULL-UP 55 bit 2: 0 NO-PULL,1 PULL-DN 56 bit 3: 1 SHMITT Trigger Enable 57 bit 4-7: Drive Strength 58 */ 59 /* Define standard Master & Slave I2S PADCONFs */ 60 #define PCM_PIN_PADCNF_I2S_SLAVE 0x19191819 61 #define PCM_PIN_PADCNF_I2S_MASTER 0x18181819 62 63 #define HCI_EVT_CMD_CMPL_LEN 1 64 #define HCI_EVT_CMD_CMPL_VSC 3 65 #define HCI_CMD_PREAMBLE_SIZE 3 66 #define HCI_CMD_MAX_LEN 258 67 68 #define UNUSED(x) (void)(x) 69 70 #if (BRCM_A2DP_OFFLOAD != TRUE) 71 #define BRCM_A2DP_OFFLOAD FALSE 72 #endif 73 74 /* A2DP offload parameters from vnd_<prod>.txt */ 75 76 #ifndef BRCM_A2DP_OFFLOAD_SRC 77 #define BRCM_A2DP_OFFLOAD_SRC AUDIO_ROUTE_SRC_I2S 78 #endif 79 80 #ifndef BRCM_A2DP_OFFLOAD_SRC_SF 81 #define BRCM_A2DP_OFFLOAD_SRC_SF AUDIO_ROUTE_SF_48K 82 #endif 83 84 #ifndef BRCM_A2DP_OFFLOAD_MAX_BITPOOL 85 /* High quality setting @ 44.1 kHz */ 86 #define BRCM_A2DP_OFFLOAD_MAX_BITPOOL 53 87 #endif 88 89 #ifndef BRCM_A2DP_OFFLOAD_PCM_PIN_FCN 90 #define BRCM_A2DP_OFFLOAD_PCM_PIN_FCN PCM_PIN_FCN_I2S_SLAVE 91 #endif 92 93 #ifndef BRCM_A2DP_OFFLOAD_PCM_PIN_PADCNF 94 #if (BRCM_A2DP_OFFLOAD_PCM_PIN_FCN == PCM_PIN_FCN_I2S_MASTER) 95 #define BRCM_A2DP_OFFLOAD_PCM_PIN_PADCNF PCM_PIN_PADCNF_I2S_MASTER 96 #else 97 #define BRCM_A2DP_OFFLOAD_PCM_PIN_PADCNF PCM_PIN_PADCNF_I2S_SLAVE 98 #endif 99 #endif 100 101 #define MULTI_BIT_SET(x) !!(x & (x - 1)) 102 103 void brcm_vnd_a2dp_init(); 104 int brcm_vnd_a2dp_execute(bt_vendor_opcode_t, void *ev_data); 105 106 #endif /*BT_VENDOR_BRCM_A2DP_H*/ 107
