132 lines
3.4 KiB
C
132 lines
3.4 KiB
C
/* uart.h - Nordic BLE UART based Bluetooth driver */
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/*
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* Copyright (c) 2015-2016 Intel Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/**
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* IPC Uart power management driver.
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*/
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extern struct driver ipc_uart_ns16550_driver;
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int nble_open(void);
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/**
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* This function triggers the sending of PDU buffer over UART.
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*
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* This constructs an IPC message header and triggers the sending of it and
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* message buffer. If a transmission is already ongoing, it will fail.
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* In this case upper layer needs to queue the message buffer.
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*
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* @param dev structure of the opened device
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* @param handle structure of opened IPC uart channel
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* @param len length of message to send
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* @param p_data message buffer to send
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*
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* @return IPC_UART_ERROR_OK TX has been initiated, IPC_UART_TX_BUSY a
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* transmission is already going, message needs to be queued
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*
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* @note This function needs to be executed with (UART) irq off to avoid
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* pre-emption from uart_ipc_isr causing state variable corruption.
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* It also called from uart_ipc_isr() to send the next IPC message.
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*/
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int ipc_uart_ns16550_send_pdu(struct device *dev, void *handle, int len,
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void *p_data);
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/**
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* This function registers a callback function being called on TX start/end.
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*
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* This constructs an IPC message header and triggers the sending of it and
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* message buffer. If a transmission is already ongoing, it will fail. In
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* this case upper layer needs to queue the message buffer.
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*
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* @param dev structure of the opened device
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* @param cb callback function for OOB sleep mode handling called at tx start
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* and end
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* @param param parameter passed to cb when being called
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*/
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void ipc_uart_ns16550_set_tx_cb(struct device *dev, void (*cb)(bool, void*),
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void *param);
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/**
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* Opens a UART channel for QRK/BLE Core IPC, and defines the callback function
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* for receiving IPC messages.
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*
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* @param channel IPC channel ID to use
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* @param cb Callback to handle messages
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*
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* @return
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* - Pointer to channel structure if success,
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* - NULL if opening fails.
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*/
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void *ipc_uart_channel_open(int channel, int (*cb)(int chan, int request,
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int len, void *data));
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/**
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* The frame is a message.
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*/
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#define IPC_MSG_TYPE_MESSAGE 0x1
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/**
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* Requests to free a message.
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*/
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#define IPC_MSG_TYPE_FREE 0x2
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/**
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* Sets the MessageBox as synchronized.
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*/
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#define IPC_MSG_TYPE_SYNC 0x3
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/**
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* Allocates a port.
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*
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* This request is always flowing from a slave to the master.
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*/
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#define IPC_REQUEST_ALLOC_PORT 0x10
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/**
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* Registers a service.
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*
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* This request is always flowing from a slave to the master.
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*/
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#define IPC_REQUEST_REGISTER_SERVICE 0x11
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/**
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* Unregisters a service.
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*/
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#define IPC_REQUEST_DEREGISTER_SERVICE 0x12
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/**
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* The message is for test commands engine.
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*/
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#define IPC_REQUEST_REG_TCMD_ENGINE 0x13
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/**
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* Registers a Service Manager Proxy to the Service Manager.
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*
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* This request always flow from a slave to the master.
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*/
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#define IPC_REQUEST_REGISTER_PROXY 0x14
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/**
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* Notifies a panic (for log dump).
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*/
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#define IPC_PANIC_NOTIFICATION 0x15
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/**
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* The message is for power management.
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*/
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#define IPC_REQUEST_POWER_MANAGEMENT 0x16
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/**
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* Sends the log of a slave to the master (for log aggregation).
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*/
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#define IPC_REQUEST_LOGGER 0x17
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/**
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* The message is for power management (deep sleep).
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*/
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#define IPC_REQUEST_INFRA_PM 0x18
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