1 /****************************************************************************** 2 * 3 * Copyright (C) 2009-2012 Broadcom 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.c 22 * 23 * Description: Broadcom vendor specific library implementation 24 * 25 ******************************************************************************/ 26 27 #define LOG_TAG "bt_vendor" 28 29 #include <utils/Log.h> 30 #include <string.h> 31 #include "bt_vendor_brcm.h" 32 #include "upio.h" 33 #include "userial_vendor.h" 34 35 #ifndef BTVND_DBG 36 #define BTVND_DBG FALSE 37 #endif 38 39 #if (BTVND_DBG == TRUE) 40 #define BTVNDDBG(param, ...) {ALOGD(param, ## __VA_ARGS__);} 41 #else 42 #define BTVNDDBG(param, ...) {} 43 #endif 44 45 /****************************************************************************** 46 ** Externs 47 ******************************************************************************/ 48 49 void hw_config_start(void); 50 uint8_t hw_lpm_enable(uint8_t turn_on); 51 uint32_t hw_lpm_get_idle_timeout(void); 52 void hw_lpm_set_wake_state(uint8_t wake_assert); 53 #if (SCO_CFG_INCLUDED == TRUE) 54 void hw_sco_config(void); 55 #endif 56 void vnd_load_conf(const char *p_path); 57 #if (HW_END_WITH_HCI_RESET == TRUE) 58 void hw_epilog_process(void); 59 #endif 60 61 #if (BRCM_A2DP_OFFLOAD == TRUE) 62 void brcm_vnd_a2dp_init(bt_vendor_callbacks_t *callback); 63 int brcm_vnd_a2dp_execute(bt_vendor_opcode_t, void *ev_data); 64 #endif 65 66 /****************************************************************************** 67 ** Variables 68 ******************************************************************************/ 69 70 bt_vendor_callbacks_t *bt_vendor_cbacks = NULL; 71 uint8_t vnd_local_bd_addr[6]={0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; 72 73 /****************************************************************************** 74 ** Local type definitions 75 ******************************************************************************/ 76 77 /****************************************************************************** 78 ** Static Variables 79 ******************************************************************************/ 80 81 static const tUSERIAL_CFG userial_init_cfg = 82 { 83 (USERIAL_DATABITS_8 | USERIAL_PARITY_NONE | USERIAL_STOPBITS_1), 84 USERIAL_BAUD_115200 85 }; 86 87 /****************************************************************************** 88 ** Functions 89 ******************************************************************************/ 90 91 /***************************************************************************** 92 ** 93 ** BLUETOOTH VENDOR INTERFACE LIBRARY FUNCTIONS 94 ** 95 *****************************************************************************/ 96 97 static int init(const bt_vendor_callbacks_t* p_cb, unsigned char *local_bdaddr) 98 { 99 ALOGI("init"); 100 101 if (p_cb == NULL) 102 { 103 ALOGE("init failed with no user callbacks!"); 104 return -1; 105 } 106 107 #if (VENDOR_LIB_RUNTIME_TUNING_ENABLED == TRUE) 108 ALOGW("*****************************************************************"); 109 ALOGW("*****************************************************************"); 110 ALOGW("** Warning - BT Vendor Lib is loaded in debug tuning mode!"); 111 ALOGW("**"); 112 ALOGW("** If this is not intentional, rebuild libbt-vendor.so "); 113 ALOGW("** with VENDOR_LIB_RUNTIME_TUNING_ENABLED=FALSE and "); 114 ALOGW("** check if any run-time tuning parameters needed to be"); 115 ALOGW("** carried to the build-time configuration accordingly."); 116 ALOGW("*****************************************************************"); 117 ALOGW("*****************************************************************"); 118 #endif 119 120 userial_vendor_init(); 121 upio_init(); 122 123 vnd_load_conf(VENDOR_LIB_CONF_FILE); 124 125 /* store reference to user callbacks */ 126 bt_vendor_cbacks = (bt_vendor_callbacks_t *) p_cb; 127 128 /* This is handed over from the stack */ 129 memcpy(vnd_local_bd_addr, local_bdaddr, 6); 130 131 #if (BRCM_A2DP_OFFLOAD == TRUE) 132 brcm_vnd_a2dp_init(bt_vendor_cbacks); 133 #endif 134 135 return 0; 136 } 137 138 139 /** Requested operations */ 140 static int op(bt_vendor_opcode_t opcode, void *param) 141 { 142 int retval = 0; 143 144 BTVNDDBG("op for %d", opcode); 145 146 switch(opcode) 147 { 148 case BT_VND_OP_POWER_CTRL: 149 { 150 int *state = (int *) param; 151 upio_set_bluetooth_power(UPIO_BT_POWER_OFF); 152 if (*state == BT_VND_PWR_ON) 153 { 154 ALOGW("NOTE: BT_VND_PWR_ON now forces power-off first"); 155 upio_set_bluetooth_power(UPIO_BT_POWER_ON); 156 } else { 157 /* Make sure wakelock is released */ 158 hw_lpm_set_wake_state(false); 159 } 160 } 161 break; 162 163 case BT_VND_OP_FW_CFG: 164 { 165 hw_config_start(); 166 } 167 break; 168 169 case BT_VND_OP_SCO_CFG: 170 { 171 #if (SCO_CFG_INCLUDED == TRUE) 172 hw_sco_config(); 173 #else 174 retval = -1; 175 #endif 176 } 177 break; 178 179 case BT_VND_OP_USERIAL_OPEN: 180 { 181 int (*fd_array)[] = (int (*)[]) param; 182 int fd, idx; 183 fd = userial_vendor_open((tUSERIAL_CFG *) &userial_init_cfg); 184 if (fd != -1) 185 { 186 for (idx=0; idx < CH_MAX; idx++) 187 (*fd_array)[idx] = fd; 188 189 retval = 1; 190 } 191 /* retval contains numbers of open fd of HCI channels */ 192 } 193 break; 194 195 case BT_VND_OP_USERIAL_CLOSE: 196 { 197 userial_vendor_close(); 198 } 199 break; 200 201 case BT_VND_OP_GET_LPM_IDLE_TIMEOUT: 202 { 203 uint32_t *timeout_ms = (uint32_t *) param; 204 *timeout_ms = hw_lpm_get_idle_timeout(); 205 } 206 break; 207 208 case BT_VND_OP_LPM_SET_MODE: 209 { 210 uint8_t *mode = (uint8_t *) param; 211 retval = hw_lpm_enable(*mode); 212 } 213 break; 214 215 case BT_VND_OP_LPM_WAKE_SET_STATE: 216 { 217 uint8_t *state = (uint8_t *) param; 218 uint8_t wake_assert = (*state == BT_VND_LPM_WAKE_ASSERT) ? \ 219 TRUE : FALSE; 220 221 hw_lpm_set_wake_state(wake_assert); 222 } 223 break; 224 225 case BT_VND_OP_SET_AUDIO_STATE: 226 { 227 retval = hw_set_audio_state((bt_vendor_op_audio_state_t *)param); 228 } 229 break; 230 231 case BT_VND_OP_EPILOG: 232 { 233 #if (HW_END_WITH_HCI_RESET == FALSE) 234 if (bt_vendor_cbacks) 235 { 236 bt_vendor_cbacks->epilog_cb(BT_VND_OP_RESULT_SUCCESS); 237 } 238 #else 239 hw_epilog_process(); 240 #endif 241 } 242 break; 243 #if (BRCM_A2DP_OFFLOAD == TRUE) 244 case BT_VND_OP_A2DP_OFFLOAD_START: 245 case BT_VND_OP_A2DP_OFFLOAD_STOP: 246 retval = brcm_vnd_a2dp_execute(opcode, param); 247 break; 248 #endif 249 } 250 251 return retval; 252 } 253 254 /** Closes the interface */ 255 static void cleanup( void ) 256 { 257 BTVNDDBG("cleanup"); 258 259 upio_cleanup(); 260 261 bt_vendor_cbacks = NULL; 262 } 263 264 // Entry point of DLib 265 const bt_vendor_interface_t BLUETOOTH_VENDOR_LIB_INTERFACE = { 266 sizeof(bt_vendor_interface_t), 267 init, 268 op, 269 cleanup 270 }; 271
