1 /* 2 * Copyright (c) 2013, The Linux Foundation. All rights reserved. 3 * Not a Contribution. 4 * Copyright (C) 2009-2012 Broadcom Corporation 5 * 6 * Licensed under the Apache License, Version 2.0 (the "License"); 7 * you may not use this file except in compliance with the License. 8 * You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 19 #ifndef HCI_UART_H 20 #define HCI_UART_H 21 22 /* Variables to identify the platform */ 23 /*BT HS UART TTY DEVICE */ 24 #define BT_HS_UART_DEVICE "/dev/ttyHS0" 25 26 /**** baud rates ****/ 27 #define USERIAL_BAUD_300 0 28 #define USERIAL_BAUD_600 1 29 #define USERIAL_BAUD_1200 2 30 #define USERIAL_BAUD_2400 3 31 #define USERIAL_BAUD_9600 4 32 #define USERIAL_BAUD_19200 5 33 #define USERIAL_BAUD_57600 6 34 #define USERIAL_BAUD_115200 7 35 #define USERIAL_BAUD_230400 8 36 #define USERIAL_BAUD_460800 9 37 #define USERIAL_BAUD_921600 10 38 #define USERIAL_BAUD_1M 11 39 #define USERIAL_BAUD_1_5M 12 40 #define USERIAL_BAUD_2M 13 41 #define USERIAL_BAUD_3M 14 42 #define USERIAL_BAUD_4M 15 43 #define USERIAL_BAUD_AUTO 16 44 45 /**** Data Format ****/ 46 /* Stop Bits */ 47 #define USERIAL_STOPBITS_1 1 48 #define USERIAL_STOPBITS_1_5 (1<<1) 49 #define USERIAL_STOPBITS_2 (1<<2) 50 51 /* Parity Bits */ 52 #define USERIAL_PARITY_NONE (1<<3) 53 #define USERIAL_PARITY_EVEN (1<<4) 54 #define USERIAL_PARITY_ODD (1<<5) 55 56 /* Data Bits */ 57 #define USERIAL_DATABITS_5 (1<<6) 58 #define USERIAL_DATABITS_6 (1<<7) 59 #define USERIAL_DATABITS_7 (1<<8) 60 #define USERIAL_DATABITS_8 (1<<9) 61 62 /* HCI Packet types */ 63 #define HCI_COMMAND_PKT 0x01 64 #define HCI_ACLDATA_PKT 0x02 65 #define HCI_SCODATA_PKT 0x03 66 #define HCI_EVENT_PKT 0x04 67 #define HCI_VENDOR_PKT 0xff 68 69 /* HCI Command/Event Opcode */ 70 #define HCI_RESET 0x0C03 71 #define EVT_CMD_COMPLETE 0x0E 72 73 /* Command opcode pack/unpack */ 74 #define cmd_opcode_pack(ogf, ocf) (uint16_t)((ocf & 0x03ff)|(ogf << 10)) 75 76 #if (BT_WAKE_VIA_USERIAL_IOCTL==TRUE) 77 /* These are the ioctl values used for bt_wake ioctl via UART driver. you may 78 * need to redefine them on you platform! 79 * Logically they need to be unique and not colide with existing uart ioctl's. 80 */ 81 #ifndef USERIAL_IOCTL_BT_WAKE_ASSERT 82 #define USERIAL_IOCTL_BT_WAKE_ASSERT 0x8003 83 #endif 84 #ifndef USERIAL_IOCTL_BT_WAKE_DEASSERT 85 #define USERIAL_IOCTL_BT_WAKE_DEASSERT 0x8004 86 #endif 87 #ifndef USERIAL_IOCTL_BT_WAKE_GET_ST 88 #define USERIAL_IOCTL_BT_WAKE_GET_ST 0x8005 89 #endif 90 #endif // (BT_WAKE_VIA_USERIAL_IOCTL==TRUE) 91 92 /* UART CLOCK IOCTLS*/ 93 #define USERIAL_OP_CLK_ON 0x5441 94 #define USERIAL_OP_CLK_OFF 0x5442 95 #define USERIAL_OP_CLK_STATE 0x5443 96 /****************************************************************************** 97 ** Type definitions 98 ******************************************************************************/ 99 100 /* Structure used to configure serial port during open */ 101 typedef struct 102 { 103 uint16_t fmt; /* Data format */ 104 uint8_t baud; /* Baud rate */ 105 } tUSERIAL_CFG; 106 107 typedef enum { 108 #if (BT_WAKE_VIA_USERIAL_IOCTL==TRUE) 109 USERIAL_OP_ASSERT_BT_WAKE, 110 USERIAL_OP_DEASSERT_BT_WAKE, 111 USERIAL_OP_GET_BT_WAKE_STATE, 112 #endif 113 USERIAL_OP_FLOW_ON, 114 USERIAL_OP_FLOW_OFF, 115 USERIAL_OP_NOP, 116 } userial_vendor_ioctl_op_t; 117 118 /* UPIO signals */ 119 enum { 120 UPIO_BT_WAKE = 0, 121 UPIO_HOST_WAKE, 122 UPIO_LPM_MODE, 123 UPIO_MAX_COUNT 124 }; 125 126 /* UPIO assertion/deassertion */ 127 enum { 128 UPIO_UNKNOWN = 0, 129 UPIO_DEASSERT, 130 UPIO_ASSERT 131 }; 132 133 #define VND_PORT_NAME_MAXLEN 256 134 135 /* vendor serial control block */ 136 typedef struct 137 { 138 int fd; /* fd to Bluetooth device */ 139 struct termios termios; /* serial terminal of BT port */ 140 char port_name[VND_PORT_NAME_MAXLEN]; 141 } vnd_userial_cb_t; 142 143 typedef struct { 144 uint8_t ncmd; 145 uint16_t opcode; 146 } __attribute__ ((packed)) evt_cmd_complete; 147 148 typedef struct { 149 uint8_t status; 150 uint8_t ncmd; 151 uint16_t opcode; 152 } __attribute__ ((packed)) evt_cmd_status; 153 154 typedef struct { 155 uint16_t opcode; 156 uint8_t plen; 157 } __attribute__ ((packed)) hci_command_hdr; 158 159 typedef struct { 160 uint8_t evt; 161 uint8_t plen; 162 } __attribute__ ((packed)) hci_event_hdr; 163 164 /****************************************************************************** 165 ** Extern 166 ******************************************************************************/ 167 extern vnd_userial_cb_t vnd_userial; 168 169 170 /******************************************************************************* 171 ** 172 ** Function userial_vendor_init 173 ** 174 ** Description Initialize userial vendor-specific control block 175 ** 176 ** Returns None 177 ** 178 *******************************************************************************/ 179 void userial_vendor_init(void); 180 181 /******************************************************************************* 182 ** 183 ** Function userial_vendor_open 184 ** 185 ** Description Open the serial port with the given configuration 186 ** 187 ** Returns device fd 188 ** 189 *******************************************************************************/ 190 int userial_vendor_open(tUSERIAL_CFG *p_cfg); 191 192 /******************************************************************************* 193 ** 194 ** Function userial_vendor_close 195 ** 196 ** Description Conduct vendor-specific close work 197 ** 198 ** Returns None 199 ** 200 *******************************************************************************/ 201 void userial_vendor_close(void); 202 203 /******************************************************************************* 204 ** 205 ** Function userial_vendor_set_baud 206 ** 207 ** Description Set new baud rate 208 ** 209 ** Returns None 210 ** 211 *******************************************************************************/ 212 void userial_vendor_set_baud(uint8_t userial_baud); 213 214 /******************************************************************************* 215 ** 216 ** Function userial_vendor_ioctl 217 ** 218 ** Description ioctl inteface 219 ** 220 ** Returns int error 221 ** 222 *******************************************************************************/ 223 int userial_vendor_ioctl(userial_vendor_ioctl_op_t op, int *p_data); 224 225 /******************************************************************************* 226 ** 227 ** Function read_hci_event 228 ** 229 ** Description Read HCI event during vendor initialization 230 ** 231 ** Returns int: size to read 232 ** 233 *******************************************************************************/ 234 int read_hci_event(int fd, unsigned char* buf, int size); 235 236 #endif /* HCI_UART_H */ 237
