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add support of load eject media #7

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add support of load eject media #7

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fb615c1
add support of load eject media
ayedm1 Jan 14, 2026
43753d7
Device MSC: add START STOP (load/eject)
ayedm1 Jan 14, 2026
eaf1823
Merge branch 'device_msc_load_eject' of https://github.com/ayedm1/ecl…
ayedm1 Jan 18, 2026
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220 changes: 132 additions & 88 deletions common/usbx_device_classes/inc/ux_device_class_storage.h
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93 changes: 52 additions & 41 deletions common/usbx_device_classes/src/ux_device_class_storage_activate.c
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Original file line number Diff line number Diff line change
@@ -1,18 +1,18 @@
/***************************************************************************
* Copyright (c) 2024 Microsoft Corporation
*
* Copyright (c) 2024 Microsoft Corporation
*
* 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 */
/** */
/** USBX Component */
/** */
/** Device Storage Class */
/** */
Expand All @@ -29,40 +29,40 @@
#include "ux_device_stack.h"


/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _ux_device_class_storage_activate PORTABLE C */
/* 6.3.0 */
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _ux_device_class_storage_activate PORTABLE C */
/* 6.4.6 */
/* AUTHOR */
/* */
/* Chaoqiong Xiao, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function activates the USB storage device. */
/* */
/* INPUT */
/* */
/* command Pointer to storage command */
/* */
/* OUTPUT */
/* */
/* Completion Status */
/* */
/* CALLS */
/* */
/* _ux_device_thread_resume Resume thread */
/* */
/* CALLED BY */
/* */
/* Device Storage Class */
/* */
/* RELEASE HISTORY */
/* */
/* DATE NAME DESCRIPTION */
/* */
/* */
/* This function activates the USB storage device. */
/* */
/* INPUT */
/* */
/* command Pointer to storage command */
/* */
/* OUTPUT */
/* */
/* Completion Status */
/* */
/* CALLS */
/* */
/* _ux_device_thread_resume Resume thread */
/* */
/* 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), */
/* resulting in version 6.1 */
Expand All @@ -77,15 +77,19 @@
/* added a new mode to manage */
/* endpoint buffer in classes, */
/* resulting in version 6.3.0 */
/* 01-20-2026 Mohamed AYED Modified comment(s), */
/* support load eject media */
/* resulting in version 6.4.6 */
/* */
/**************************************************************************/
UINT _ux_device_class_storage_activate(UX_SLAVE_CLASS_COMMAND *command)
{

UINT status = UX_SUCCESS;
UX_SLAVE_INTERFACE *interface_ptr;
UX_SLAVE_CLASS *class_ptr;
UX_SLAVE_CLASS_STORAGE *storage;
ULONG lun_index;
#if defined(UX_DEVICE_STANDALONE)
UX_SLAVE_ENDPOINT *endpoint;
#endif
Expand All @@ -99,17 +103,17 @@ UX_SLAVE_ENDPOINT *endpoint;

/* Get the interface that owns this instance. */
interface_ptr = (UX_SLAVE_INTERFACE *) command -> ux_slave_class_command_interface;

/* Store the class instance into the interface. */
interface_ptr -> ux_slave_interface_class_instance = (VOID *)storage;

/* Now the opposite, store the interface in the class instance. */
storage -> ux_slave_class_storage_interface = interface_ptr;

#if !defined(UX_DEVICE_STANDALONE)

/* Resume thread. */
_ux_device_thread_resume(&class_ptr -> ux_slave_class_thread);
_ux_device_thread_resume(&class_ptr -> ux_slave_class_thread);

#else

Expand All @@ -130,7 +134,7 @@ UX_SLAVE_ENDPOINT *endpoint;

/* We found the IN endpoint first. */
storage -> ux_device_class_storage_ep_in = endpoint;

/* So the next endpoint has to be the OUT endpoint. */
storage -> ux_device_class_storage_ep_out = endpoint -> ux_slave_endpoint_next_endpoint;
}
Expand Down Expand Up @@ -162,13 +166,20 @@ UX_SLAVE_ENDPOINT *endpoint;
status = UX_SUCCESS;
#endif

/* Default when activating storage device: media removal is allowed (not prevented) and loaded. */
for (lun_index = 0; lun_index < storage -> ux_slave_class_storage_number_lun; lun_index++)
{
storage -> ux_slave_class_storage_lun[lun_index].ux_slave_class_storage_prevent_medium_removal = 0;
storage -> ux_slave_class_storage_lun[lun_index].ux_slave_class_storage_medium_loaded_status = 1;
}

/* If there is a activate function call it. */
if (storage -> ux_slave_class_storage_instance_activate != UX_NULL)
{
{
/* Invoke the application. */
storage -> ux_slave_class_storage_instance_activate(storage);
}

/* If trace is enabled, insert this event into the trace buffer. */
UX_TRACE_IN_LINE_INSERT(UX_TRACE_DEVICE_CLASS_STORAGE_ACTIVATE, storage, 0, 0, 0, UX_TRACE_DEVICE_CLASS_EVENTS, 0, 0)

Expand Down
6 changes: 5 additions & 1 deletion common/usbx_device_classes/src/ux_device_class_storage_initialize.c
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Original file line number Diff line number Diff line change
Expand Up @@ -40,7 +40,7 @@ UCHAR _ux_system_slave_class_storage_product_serial[] = "123
/* FUNCTION RELEASE */
/* */
/* _ux_device_class_storage_initialize PORTABLE C */
/* 6.3.0 */
/* 6.4.6 */
/* AUTHOR */
/* */
/* Chaoqiong Xiao, Microsoft Corporation */
Expand Down Expand Up @@ -85,6 +85,9 @@ UCHAR _ux_system_slave_class_storage_product_serial[] = "123
/* added a new mode to manage */
/* endpoint buffer in classes, */
/* resulting in version 6.3.0 */
/* 01-20-2026 Mohamed AYED Modified comment(s), */
/* support load eject media */
/* resulting in version 6.4.6 */
/* */
/**************************************************************************/
UINT _ux_device_class_storage_initialize(UX_SLAVE_CLASS_COMMAND *command)
Expand Down Expand Up @@ -184,6 +187,7 @@ ULONG lun_index;
storage -> ux_slave_class_storage_lun[lun_index].ux_slave_class_storage_media_write = storage_parameter -> ux_slave_class_storage_parameter_lun[lun_index].ux_slave_class_storage_media_write;
storage -> ux_slave_class_storage_lun[lun_index].ux_slave_class_storage_media_status = storage_parameter -> ux_slave_class_storage_parameter_lun[lun_index].ux_slave_class_storage_media_status;
storage -> ux_slave_class_storage_lun[lun_index].ux_slave_class_storage_media_notification = storage_parameter -> ux_slave_class_storage_parameter_lun[lun_index].ux_slave_class_storage_media_notification;
storage -> ux_slave_class_storage_lun[lun_index].ux_slave_class_storage_media_start_stop = storage_parameter -> ux_slave_class_storage_parameter_lun[lun_index].ux_slave_class_storage_media_start_stop;
}

/* If it's OK, complete it. */
Expand Down
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