89 lines
1.5 KiB
C
89 lines
1.5 KiB
C
/*
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* \brief SCSI helpers
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* \author Sebastian Sumpf
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* \date 2012-05-06
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*/
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/*
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* Copyright (C) 2012 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU General Public License version 2.
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*/
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#ifndef _SCSI_H_
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#define _SCSI_H_
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struct scsi_cmnd;
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* Add a SCSI device
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*
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* \param sdev Device to add
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*/
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void scsi_add_device(struct scsi_device *sdev);
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/**
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* Alloc data buffer for command
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*
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* \param size Size of buffer
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* \param cmnd Command to assciate buffer
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*/
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void scsi_alloc_buffer(size_t size, struct scsi_cmnd *cmnd);
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/**
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* Fill command
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*
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* \param cmnd Command buffer to setup
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* \param size Data size
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* \param virt Virtual address of buffer
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* \param addr DMA address of buffer
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*/
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void scsi_setup_buffer(struct scsi_cmnd *cmnd, size_t size, void *virt, dma_addr_t addr);
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/**
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* Free data buffer of command
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*
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* \param cmnd Command
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*/
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void scsi_free_buffer(struct scsi_cmnd *cmnd);
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/**
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* Get buffer data for command
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*
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* \param cmnd Command to retrieve buffer pointer
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*
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* \return Buffer pointer
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*/
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void *scsi_buffer_data(struct scsi_cmnd *cmnd);
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/**
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* Allocate a SCSI command
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*
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* \return Allocated command or zero on failure
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*/
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struct scsi_cmnd *_scsi_alloc_command();
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/**
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* Free a SCSI command
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*
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* \param cmnd Command
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*/
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void _scsi_free_command(struct scsi_cmnd *cmnd);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _SCSI_H_ */
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