/* * Copyright (c) 2013, The Linux Foundation. All rights reserved. * Not a Contribution. * Copyright (C) 2009-2012 Broadcom Corporation * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #ifndef HCI_UART_H #define HCI_UART_H #include /* Variables to identify the platform */ /*BT HS UART TTY DEVICE */ #define BT_HS_UART_DEVICE "/dev/ttyHS0" /**** baud rates ****/ #define USERIAL_BAUD_300 0 #define USERIAL_BAUD_600 1 #define USERIAL_BAUD_1200 2 #define USERIAL_BAUD_2400 3 #define USERIAL_BAUD_9600 4 #define USERIAL_BAUD_19200 5 #define USERIAL_BAUD_57600 6 #define USERIAL_BAUD_115200 7 #define USERIAL_BAUD_230400 8 #define USERIAL_BAUD_460800 9 #define USERIAL_BAUD_921600 10 #define USERIAL_BAUD_1M 11 #define USERIAL_BAUD_1_5M 12 #define USERIAL_BAUD_2M 13 #define USERIAL_BAUD_3M 14 #define USERIAL_BAUD_4M 15 #define USERIAL_BAUD_AUTO 16 /**** Data Format ****/ /* Stop Bits */ #define USERIAL_STOPBITS_1 1 #define USERIAL_STOPBITS_1_5 (1<<1) #define USERIAL_STOPBITS_2 (1<<2) /* Parity Bits */ #define USERIAL_PARITY_NONE (1<<3) #define USERIAL_PARITY_EVEN (1<<4) #define USERIAL_PARITY_ODD (1<<5) /* Data Bits */ #define USERIAL_DATABITS_5 (1<<6) #define USERIAL_DATABITS_6 (1<<7) #define USERIAL_DATABITS_7 (1<<8) #define USERIAL_DATABITS_8 (1<<9) /* HCI Packet types */ #define HCI_COMMAND_PKT 0x01 #define HCI_ACLDATA_PKT 0x02 #define HCI_SCODATA_PKT 0x03 #define HCI_EVENT_PKT 0x04 #define HCI_VENDOR_PKT 0xff /* HCI Command/Event Opcode */ #define HCI_RESET 0x0C03 #define EVT_CMD_COMPLETE 0x0E /* Command opcode pack/unpack */ #define cmd_opcode_pack(ogf, ocf) (uint16_t)((ocf & 0x03ff)|(ogf << 10)) #if (BT_WAKE_VIA_USERIAL_IOCTL==TRUE) /* These are the ioctl values used for bt_wake ioctl via UART driver. you may * need to redefine them on you platform! * Logically they need to be unique and not colide with existing uart ioctl's. */ #ifndef USERIAL_IOCTL_BT_WAKE_ASSERT #define USERIAL_IOCTL_BT_WAKE_ASSERT 0x8003 #endif #ifndef USERIAL_IOCTL_BT_WAKE_DEASSERT #define USERIAL_IOCTL_BT_WAKE_DEASSERT 0x8004 #endif #ifndef USERIAL_IOCTL_BT_WAKE_GET_ST #define USERIAL_IOCTL_BT_WAKE_GET_ST 0x8005 #endif #endif // (BT_WAKE_VIA_USERIAL_IOCTL==TRUE) /* UART CLOCK IOCTLS*/ /* UART CLOCK IOCTLS*/ #define USERIAL_OP_CLK_ON TIOCPMGET /* PM get */ #define USERIAL_OP_CLK_OFF TIOCPMPUT /* PM put */ #define USERIAL_OP_CLK_STATE TIOCPMACT /* PM is active */ /****************************************************************************** ** Type definitions ******************************************************************************/ /* Structure used to configure serial port during open */ typedef struct { uint16_t fmt; /* Data format */ uint8_t baud; /* Baud rate */ } tUSERIAL_CFG; typedef enum { #if (BT_WAKE_VIA_USERIAL_IOCTL==TRUE) USERIAL_OP_ASSERT_BT_WAKE, USERIAL_OP_DEASSERT_BT_WAKE, USERIAL_OP_GET_BT_WAKE_STATE, #endif USERIAL_OP_FLOW_ON, USERIAL_OP_FLOW_OFF, USERIAL_OP_NOP, } userial_vendor_ioctl_op_t; /* UPIO signals */ enum { UPIO_BT_WAKE = 0, UPIO_HOST_WAKE, UPIO_LPM_MODE, UPIO_MAX_COUNT }; /* UPIO assertion/deassertion */ enum { UPIO_UNKNOWN = 0, UPIO_DEASSERT, UPIO_ASSERT }; #define VND_PORT_NAME_MAXLEN 256 /* vendor serial control block */ typedef struct { int fd; /* fd to Bluetooth device */ struct termios termios; /* serial terminal of BT port */ char port_name[VND_PORT_NAME_MAXLEN]; } vnd_userial_cb_t; typedef struct { uint8_t ncmd; uint16_t opcode; } __attribute__ ((packed)) evt_cmd_complete; typedef struct { uint8_t status; uint8_t ncmd; uint16_t opcode; } __attribute__ ((packed)) evt_cmd_status; typedef struct { uint16_t opcode; uint8_t plen; } __attribute__ ((packed)) hci_command_hdr; typedef struct { uint8_t evt; uint8_t plen; } __attribute__ ((packed)) hci_event_hdr; /****************************************************************************** ** Extern ******************************************************************************/ extern vnd_userial_cb_t vnd_userial; /******************************************************************************* ** ** Function userial_vendor_init ** ** Description Initialize userial vendor-specific control block ** ** Returns None ** *******************************************************************************/ void userial_vendor_init(void); /******************************************************************************* ** ** Function userial_vendor_open ** ** Description Open the serial port with the given configuration ** ** Returns device fd ** *******************************************************************************/ int userial_vendor_open(tUSERIAL_CFG *p_cfg); /******************************************************************************* ** ** Function userial_vendor_close ** ** Description Conduct vendor-specific close work ** ** Returns None ** *******************************************************************************/ void userial_vendor_close(void); /******************************************************************************* ** ** Function userial_vendor_set_baud ** ** Description Set new baud rate ** ** Returns None ** *******************************************************************************/ void userial_vendor_set_baud(uint8_t userial_baud); /******************************************************************************* ** ** Function userial_vendor_ioctl ** ** Description ioctl inteface ** ** Returns int error ** *******************************************************************************/ int userial_vendor_ioctl(userial_vendor_ioctl_op_t op, int *p_data); /******************************************************************************* ** ** Function userial_to_tcio_baud ** ** Description helper function converts USERIAL baud rates into TCIO ** conforming baud rates ** ** Returns TRUE/FALSE ** *******************************************************************************/ uint8_t userial_to_tcio_baud(uint8_t cfg_baud, uint32_t *baud); /******************************************************************************* ** ** Function userial_to_baud_tcio ** ** Description helper function converts TCIO baud rate into integer ** ** Returns uint32_t ** *******************************************************************************/ int userial_tcio_baud_to_int(uint32_t baud); /******************************************************************************* ** ** Function read_hci_event ** ** Description Read HCI event during vendor initialization ** ** Returns int: size to read ** *******************************************************************************/ int read_hci_event(int fd, unsigned char* buf, int size); #endif /* HCI_UART_H */