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/***************************************************************************
* Copyright (c) 2024 Microsoft Corporation
* Copyright (c) 2026-present Eclipse ThreadX contributors
*
* This program and the accompanying materials are made available under the
* terms of the MIT License which is available at
* https://opensource.org/licenses/MIT.
*
* SPDX-License-Identifier: MIT
**************************************************************************/
/**************************************************************************/
/**************************************************************************/
/** */
/** USBX Component */
/** */
/** Device Storage Class */
/** */
/**************************************************************************/
/**************************************************************************/
/* Include necessary system files. */
#define UX_SOURCE_CODE
#include "ux_api.h"
#include "ux_device_class_storage.h"
#include "ux_device_stack.h"
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _ux_device_class_storage_test_ready PORTABLE C */
/* 6.1.10 */
/* AUTHOR */
/* */
/* Chaoqiong Xiao, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function tests if the SCSI slave device is ready. */
/* The status function of the storage devices is called. If there is */
/* an error, the request sense parameters are set for the host to */
/* investigate. */
/* */
/* INPUT */
/* */
/* storage Pointer to storage class */
/* lun Logical unit number */
/* endpoint_in Pointer to IN endpoint */
/* endpoint_out Pointer to OUT endpoint */
/* cbwcb Pointer to CBWCB */
/* */
/* OUTPUT */
/* */
/* Completion Status */
/* */
/* CALLS */
/* */
/* (ux_slave_class_storage_media_status) Get media status */
/* */
/* CALLED BY */
/* */
/* Device Storage Class */
/* */
/**************************************************************************/
UINT _ux_device_class_storage_test_ready(UX_SLAVE_CLASS_STORAGE *storage, ULONG lun, UX_SLAVE_ENDPOINT *endpoint_in,
UX_SLAVE_ENDPOINT *endpoint_out, UCHAR * cbwcb)
{
UINT status;
ULONG media_status;
UX_PARAMETER_NOT_USED(endpoint_in);
UX_PARAMETER_NOT_USED(endpoint_out);
UX_PARAMETER_NOT_USED(cbwcb);
/* If trace is enabled, insert this event into the trace buffer. */
UX_TRACE_IN_LINE_INSERT(UX_TRACE_DEVICE_CLASS_STORAGE_TEST_READY, storage, lun, 0, 0, UX_TRACE_DEVICE_CLASS_EVENTS, 0, 0)
if (storage -> ux_slave_class_storage_lun[lun].ux_slave_class_storage_medium_loaded_status == 0)
{
/* Media not loaded. Set NOT READY sense code. */
storage -> ux_slave_class_storage_lun[lun].ux_slave_class_storage_request_sense_status =
UX_DEVICE_CLASS_STORAGE_SENSE_STATUS(UX_SLAVE_CLASS_STORAGE_SENSE_KEY_NOT_READY,
UX_SLAVE_CLASS_STORAGE_SENSE_CODE_NOT_PRESENT, 0x00);
/* Return CSW with failure. */
storage -> ux_slave_class_storage_csw_status = UX_SLAVE_CLASS_STORAGE_CSW_FAILED;
/* Return completion status. */
return(UX_SUCCESS);
}
/* Obtain the status of the device. */
status = storage -> ux_slave_class_storage_lun[lun].ux_slave_class_storage_media_status(storage, lun,
storage -> ux_slave_class_storage_lun[lun].ux_slave_class_storage_media_id, &media_status);
/* Set the sense/code/qualifier codes for the REQUEST_SENSE command. */
storage -> ux_slave_class_storage_lun[lun].ux_slave_class_storage_request_sense_status = media_status;
/* Return CSW with success/error. */
storage -> ux_slave_class_storage_csw_status = (status == UX_SUCCESS) ?
UX_SLAVE_CLASS_STORAGE_CSW_PASSED : UX_SLAVE_CLASS_STORAGE_CSW_FAILED;
status = UX_SUCCESS;
#if !defined(UX_DEVICE_STANDALONE)
/* Case (9) Ho > Dn. */
if (storage -> ux_slave_class_storage_host_length)
{
_ux_device_stack_endpoint_stall(endpoint_out);
storage -> ux_slave_class_storage_csw_residue = storage -> ux_slave_class_storage_host_length;
}
#endif
/* Return completion status. */
return(status);
}
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