237 lines
6.7 KiB
C
237 lines
6.7 KiB
C
/*
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* Copyright (c) 2013, The Linux Foundation. All rights reserved.
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* Not a Contribution.
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* Copyright (C) 2009-2012 Broadcom Corporation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef HCI_UART_H
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#define HCI_UART_H
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/* Variables to identify the platform */
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/*BT HS UART TTY DEVICE */
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#define BT_HS_UART_DEVICE "/dev/ttyHS0"
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/**** baud rates ****/
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#define USERIAL_BAUD_300 0
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#define USERIAL_BAUD_600 1
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#define USERIAL_BAUD_1200 2
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#define USERIAL_BAUD_2400 3
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#define USERIAL_BAUD_9600 4
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#define USERIAL_BAUD_19200 5
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#define USERIAL_BAUD_57600 6
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#define USERIAL_BAUD_115200 7
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#define USERIAL_BAUD_230400 8
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#define USERIAL_BAUD_460800 9
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#define USERIAL_BAUD_921600 10
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#define USERIAL_BAUD_1M 11
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#define USERIAL_BAUD_1_5M 12
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#define USERIAL_BAUD_2M 13
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#define USERIAL_BAUD_3M 14
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#define USERIAL_BAUD_4M 15
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#define USERIAL_BAUD_AUTO 16
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/**** Data Format ****/
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/* Stop Bits */
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#define USERIAL_STOPBITS_1 1
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#define USERIAL_STOPBITS_1_5 (1<<1)
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#define USERIAL_STOPBITS_2 (1<<2)
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/* Parity Bits */
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#define USERIAL_PARITY_NONE (1<<3)
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#define USERIAL_PARITY_EVEN (1<<4)
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#define USERIAL_PARITY_ODD (1<<5)
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/* Data Bits */
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#define USERIAL_DATABITS_5 (1<<6)
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#define USERIAL_DATABITS_6 (1<<7)
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#define USERIAL_DATABITS_7 (1<<8)
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#define USERIAL_DATABITS_8 (1<<9)
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/* HCI Packet types */
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#define HCI_COMMAND_PKT 0x01
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#define HCI_ACLDATA_PKT 0x02
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#define HCI_SCODATA_PKT 0x03
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#define HCI_EVENT_PKT 0x04
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#define HCI_VENDOR_PKT 0xff
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/* HCI Command/Event Opcode */
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#define HCI_RESET 0x0C03
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#define EVT_CMD_COMPLETE 0x0E
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/* Command opcode pack/unpack */
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#define cmd_opcode_pack(ogf, ocf) (uint16_t)((ocf & 0x03ff)|(ogf << 10))
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#if (BT_WAKE_VIA_USERIAL_IOCTL==TRUE)
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/* These are the ioctl values used for bt_wake ioctl via UART driver. you may
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* need to redefine them on you platform!
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* Logically they need to be unique and not colide with existing uart ioctl's.
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*/
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#ifndef USERIAL_IOCTL_BT_WAKE_ASSERT
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#define USERIAL_IOCTL_BT_WAKE_ASSERT 0x8003
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#endif
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#ifndef USERIAL_IOCTL_BT_WAKE_DEASSERT
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#define USERIAL_IOCTL_BT_WAKE_DEASSERT 0x8004
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#endif
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#ifndef USERIAL_IOCTL_BT_WAKE_GET_ST
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#define USERIAL_IOCTL_BT_WAKE_GET_ST 0x8005
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#endif
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#endif // (BT_WAKE_VIA_USERIAL_IOCTL==TRUE)
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/* UART CLOCK IOCTLS*/
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#define USERIAL_OP_CLK_ON 0x5441
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#define USERIAL_OP_CLK_OFF 0x5442
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#define USERIAL_OP_CLK_STATE 0x5443
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/******************************************************************************
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** Type definitions
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******************************************************************************/
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/* Structure used to configure serial port during open */
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typedef struct
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{
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uint16_t fmt; /* Data format */
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uint8_t baud; /* Baud rate */
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} tUSERIAL_CFG;
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typedef enum {
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#if (BT_WAKE_VIA_USERIAL_IOCTL==TRUE)
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USERIAL_OP_ASSERT_BT_WAKE,
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USERIAL_OP_DEASSERT_BT_WAKE,
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USERIAL_OP_GET_BT_WAKE_STATE,
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#endif
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USERIAL_OP_FLOW_ON,
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USERIAL_OP_FLOW_OFF,
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USERIAL_OP_NOP,
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} userial_vendor_ioctl_op_t;
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/* UPIO signals */
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enum {
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UPIO_BT_WAKE = 0,
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UPIO_HOST_WAKE,
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UPIO_LPM_MODE,
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UPIO_MAX_COUNT
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};
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/* UPIO assertion/deassertion */
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enum {
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UPIO_UNKNOWN = 0,
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UPIO_DEASSERT,
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UPIO_ASSERT
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};
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#define VND_PORT_NAME_MAXLEN 256
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/* vendor serial control block */
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typedef struct
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{
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int fd; /* fd to Bluetooth device */
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struct termios termios; /* serial terminal of BT port */
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char port_name[VND_PORT_NAME_MAXLEN];
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} vnd_userial_cb_t;
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typedef struct {
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uint8_t ncmd;
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uint16_t opcode;
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} __attribute__ ((packed)) evt_cmd_complete;
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typedef struct {
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uint8_t status;
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uint8_t ncmd;
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uint16_t opcode;
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} __attribute__ ((packed)) evt_cmd_status;
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typedef struct {
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uint16_t opcode;
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uint8_t plen;
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} __attribute__ ((packed)) hci_command_hdr;
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typedef struct {
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uint8_t evt;
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uint8_t plen;
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} __attribute__ ((packed)) hci_event_hdr;
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/******************************************************************************
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** Extern
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******************************************************************************/
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extern vnd_userial_cb_t vnd_userial;
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/*******************************************************************************
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**
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** Function userial_vendor_init
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**
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** Description Initialize userial vendor-specific control block
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**
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** Returns None
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**
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*******************************************************************************/
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void userial_vendor_init(void);
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/*******************************************************************************
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**
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** Function userial_vendor_open
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**
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** Description Open the serial port with the given configuration
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**
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** Returns device fd
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**
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*******************************************************************************/
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int userial_vendor_open(tUSERIAL_CFG *p_cfg);
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/*******************************************************************************
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**
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** Function userial_vendor_close
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**
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** Description Conduct vendor-specific close work
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**
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** Returns None
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**
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*******************************************************************************/
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void userial_vendor_close(void);
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/*******************************************************************************
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**
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** Function userial_vendor_set_baud
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**
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** Description Set new baud rate
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**
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** Returns None
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**
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*******************************************************************************/
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void userial_vendor_set_baud(uint8_t userial_baud);
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/*******************************************************************************
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**
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** Function userial_vendor_ioctl
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**
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** Description ioctl inteface
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**
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** Returns int error
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**
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*******************************************************************************/
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int userial_vendor_ioctl(userial_vendor_ioctl_op_t op, int *p_data);
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/*******************************************************************************
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**
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** Function read_hci_event
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**
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** Description Read HCI event during vendor initialization
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**
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** Returns int: size to read
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**
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*******************************************************************************/
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int read_hci_event(int fd, unsigned char* buf, int size);
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#endif /* HCI_UART_H */
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