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77 lines
1.9 KiB
77 lines
1.9 KiB
/*
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* Copyright (C) 2016 The Android Open Source Project
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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 __HOSTINTF_PRIV_H
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#define __HOSTINTF_PRIV_H
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#include <i2c.h>
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#include <stdint.h>
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#include <stddef.h>
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/**
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* hostIntf communication abstraction layer
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*/
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typedef void (*HostIntfCommCallbackF)(size_t bytesTransferred, int err);
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struct HostIntfComm {
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int (*request)(void);
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int (*rxPacket)(void *rxBuf, size_t rxSize, HostIntfCommCallbackF callback);
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int (*txPacket)(const void *txBuf, size_t txSize,
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HostIntfCommCallbackF callback);
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int (*release)(void);
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};
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/**
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* Returns a HostIntfOps backed by I2C
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*/
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const struct HostIntfComm *hostIntfI2cInit(uint32_t busId);
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/**
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* Returns a HostIntfOps backed by SPI
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*/
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const struct HostIntfComm *hostIntfSpiInit(uint8_t busId);
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/**
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* Platform-internal hostIntf API
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*/
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/**
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* Returns the platform's communication implementation. The platform should
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* delegate this to hostIntfI2cInit() or hostIntfSpiInit() as appropriate.
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*/
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const struct HostIntfComm *platHostIntfInit();
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/**
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* Returns the platform's hardware type (16-bit, host byte order)
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*/
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uint16_t platHwType(void);
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/**
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* Returns the platform's hardware version (16-bit, host byte order)
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*/
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uint16_t platHwVer(void);
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/**
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* Returns the platform's bootloader version (16-bit, host byte order)
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*/
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uint16_t platBlVer(void);
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#endif /* __HOSTINTF_PRIV_H */
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