/*
* 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 <asm-generic/ioctls.h>
#include <termios.h>
/* 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 */