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 #include <asm-generic/ioctls.h> 23 #include <termios.h> 24 25 /* Variables to identify the platform */ 26 /*BT HS UART TTY DEVICE */ 27 #define BT_HS_UART_DEVICE "/dev/ttyHS0" 28 29 /**** baud rates ****/ 30 #define USERIAL_BAUD_300 0 31 #define USERIAL_BAUD_600 1 32 #define USERIAL_BAUD_1200 2 33 #define USERIAL_BAUD_2400 3 34 #define USERIAL_BAUD_9600 4 35 #define USERIAL_BAUD_19200 5 36 #define USERIAL_BAUD_57600 6 37 #define USERIAL_BAUD_115200 7 38 #define USERIAL_BAUD_230400 8 39 #define USERIAL_BAUD_460800 9 40 #define USERIAL_BAUD_921600 10 41 #define USERIAL_BAUD_1M 11 42 #define USERIAL_BAUD_1_5M 12 43 #define USERIAL_BAUD_2M 13 44 #define USERIAL_BAUD_3M 14 45 #define USERIAL_BAUD_4M 15 46 #define USERIAL_BAUD_AUTO 16 47 48 /**** Data Format ****/ 49 /* Stop Bits */ 50 #define USERIAL_STOPBITS_1 1 51 #define USERIAL_STOPBITS_1_5 (1<<1) 52 #define USERIAL_STOPBITS_2 (1<<2) 53 54 /* Parity Bits */ 55 #define USERIAL_PARITY_NONE (1<<3) 56 #define USERIAL_PARITY_EVEN (1<<4) 57 #define USERIAL_PARITY_ODD (1<<5) 58 59 /* Data Bits */ 60 #define USERIAL_DATABITS_5 (1<<6) 61 #define USERIAL_DATABITS_6 (1<<7) 62 #define USERIAL_DATABITS_7 (1<<8) 63 #define USERIAL_DATABITS_8 (1<<9) 64 65 /* HCI Packet types */ 66 #define HCI_COMMAND_PKT 0x01 67 #define HCI_ACLDATA_PKT 0x02 68 #define HCI_SCODATA_PKT 0x03 69 #define HCI_EVENT_PKT 0x04 70 #define HCI_VENDOR_PKT 0xff 71 72 /* HCI Command/Event Opcode */ 73 #define HCI_RESET 0x0C03 74 #define EVT_CMD_COMPLETE 0x0E 75 76 /* Command opcode pack/unpack */ 77 #define cmd_opcode_pack(ogf, ocf) (uint16_t)((ocf & 0x03ff)|(ogf << 10)) 78 79 #if (BT_WAKE_VIA_USERIAL_IOCTL==TRUE) 80 /* These are the ioctl values used for bt_wake ioctl via UART driver. you may 81 * need to redefine them on you platform! 82 * Logically they need to be unique and not colide with existing uart ioctl's. 83 */ 84 #ifndef USERIAL_IOCTL_BT_WAKE_ASSERT 85 #define USERIAL_IOCTL_BT_WAKE_ASSERT 0x8003 86 #endif 87 #ifndef USERIAL_IOCTL_BT_WAKE_DEASSERT 88 #define USERIAL_IOCTL_BT_WAKE_DEASSERT 0x8004 89 #endif 90 #ifndef USERIAL_IOCTL_BT_WAKE_GET_ST 91 #define USERIAL_IOCTL_BT_WAKE_GET_ST 0x8005 92 #endif 93 #endif // (BT_WAKE_VIA_USERIAL_IOCTL==TRUE) 94 95 /* UART CLOCK IOCTLS*/ 96 /* UART CLOCK IOCTLS*/ 97 #define USERIAL_OP_CLK_ON TIOCPMGET /* PM get */ 98 #define USERIAL_OP_CLK_OFF TIOCPMPUT /* PM put */ 99 #define USERIAL_OP_CLK_STATE TIOCPMACT /* PM is active */ 100 101 /****************************************************************************** 102 ** Type definitions 103 ******************************************************************************/ 104 105 /* Structure used to configure serial port during open */ 106 typedef struct 107 { 108 uint16_t fmt; /* Data format */ 109 uint8_t baud; /* Baud rate */ 110 } tUSERIAL_CFG; 111 112 typedef enum { 113 #if (BT_WAKE_VIA_USERIAL_IOCTL==TRUE) 114 USERIAL_OP_ASSERT_BT_WAKE, 115 USERIAL_OP_DEASSERT_BT_WAKE, 116 USERIAL_OP_GET_BT_WAKE_STATE, 117 #endif 118 USERIAL_OP_FLOW_ON, 119 USERIAL_OP_FLOW_OFF, 120 USERIAL_OP_NOP, 121 } userial_vendor_ioctl_op_t; 122 123 /* UPIO signals */ 124 enum { 125 UPIO_BT_WAKE = 0, 126 UPIO_HOST_WAKE, 127 UPIO_LPM_MODE, 128 UPIO_MAX_COUNT 129 }; 130 131 /* UPIO assertion/deassertion */ 132 enum { 133 UPIO_UNKNOWN = 0, 134 UPIO_DEASSERT, 135 UPIO_ASSERT 136 }; 137 138 #define VND_PORT_NAME_MAXLEN 256 139 140 /* vendor serial control block */ 141 typedef struct 142 { 143 int fd; /* fd to Bluetooth device */ 144 struct termios termios; /* serial terminal of BT port */ 145 char port_name[VND_PORT_NAME_MAXLEN]; 146 } vnd_userial_cb_t; 147 148 typedef struct { 149 uint8_t ncmd; 150 uint16_t opcode; 151 } __attribute__ ((packed)) evt_cmd_complete; 152 153 typedef struct { 154 uint8_t status; 155 uint8_t ncmd; 156 uint16_t opcode; 157 } __attribute__ ((packed)) evt_cmd_status; 158 159 typedef struct { 160 uint16_t opcode; 161 uint8_t plen; 162 } __attribute__ ((packed)) hci_command_hdr; 163 164 typedef struct { 165 uint8_t evt; 166 uint8_t plen; 167 } __attribute__ ((packed)) hci_event_hdr; 168 169 /****************************************************************************** 170 ** Extern 171 ******************************************************************************/ 172 extern vnd_userial_cb_t vnd_userial; 173 174 175 /******************************************************************************* 176 ** 177 ** Function userial_vendor_init 178 ** 179 ** Description Initialize userial vendor-specific control block 180 ** 181 ** Returns None 182 ** 183 *******************************************************************************/ 184 void userial_vendor_init(void); 185 186 /******************************************************************************* 187 ** 188 ** Function userial_vendor_open 189 ** 190 ** Description Open the serial port with the given configuration 191 ** 192 ** Returns device fd 193 ** 194 *******************************************************************************/ 195 int userial_vendor_open(tUSERIAL_CFG *p_cfg); 196 197 /******************************************************************************* 198 ** 199 ** Function userial_vendor_close 200 ** 201 ** Description Conduct vendor-specific close work 202 ** 203 ** Returns None 204 ** 205 *******************************************************************************/ 206 void userial_vendor_close(void); 207 208 /******************************************************************************* 209 ** 210 ** Function userial_vendor_set_baud 211 ** 212 ** Description Set new baud rate 213 ** 214 ** Returns None 215 ** 216 *******************************************************************************/ 217 void userial_vendor_set_baud(uint8_t userial_baud); 218 219 /******************************************************************************* 220 ** 221 ** Function userial_vendor_ioctl 222 ** 223 ** Description ioctl inteface 224 ** 225 ** Returns int error 226 ** 227 *******************************************************************************/ 228 int userial_vendor_ioctl(userial_vendor_ioctl_op_t op, int *p_data); 229 230 /******************************************************************************* 231 ** 232 ** Function userial_to_tcio_baud 233 ** 234 ** Description helper function converts USERIAL baud rates into TCIO 235 ** conforming baud rates 236 ** 237 ** Returns TRUE/FALSE 238 ** 239 *******************************************************************************/ 240 uint8_t userial_to_tcio_baud(uint8_t cfg_baud, uint32_t *baud); 241 242 /******************************************************************************* 243 ** 244 ** Function userial_to_baud_tcio 245 ** 246 ** Description helper function converts TCIO baud rate into integer 247 ** 248 ** Returns uint32_t 249 ** 250 *******************************************************************************/ 251 int userial_tcio_baud_to_int(uint32_t baud); 252 253 /******************************************************************************* 254 ** 255 ** Function read_hci_event 256 ** 257 ** Description Read HCI event during vendor initialization 258 ** 259 ** Returns int: size to read 260 ** 261 *******************************************************************************/ 262 int read_hci_event(int fd, unsigned char* buf, int size); 263 264 #endif /* HCI_UART_H */ 265
