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common/usbx_device_classes/src/ux_device_class_storage_test_ready.c
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/**************************************************************************/
/* */
/* Copyright (c) Microsoft Corporation. All rights reserved. */
/* */
/* This software is licensed under the Microsoft Software License */
/* Terms for Microsoft Azure RTOS. Full text of the license can be */
/* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */
/* and in the root directory of this software. */
/* */
/**************************************************************************/
/**************************************************************************/
/**************************************************************************/
/** */
/** 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 */
/* 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 */
/* _ux_device_class_storage_csw_send Send CSW */
/* */
/* CALLED BY */
/* */
/* Device Storage Class */
/* */
/* RELEASE HISTORY */
/* */
/* DATE NAME DESCRIPTION */
/* */
/* 05-19-2020 Chaoqiong Xiao Initial Version 6.0 */
/* 09-30-2020 Chaoqiong Xiao Modified comment(s), */
/* optimized command logic, */
/* resulting in version 6.1 */
/* 12-31-2020 Chaoqiong Xiao Modified comment(s), */
/* fixed USB CV test issues, */
/* resulting in version 6.1.3 */
/* 01-31-2022 Chaoqiong Xiao Modified comment(s), */
/* added standalone support, */
/* resulting in version 6.1.10 */
/* */
/**************************************************************************/
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(lun);
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)
/* 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);
}