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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usbx_device_classes/src/ux_device_class_storage_read_capacity.c	Lines:	17	21	81.0 %
Date:	2026-03-06 18:57:10	Branches:	3	4	75.0 %


/***************************************************************************
 * 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                                                */
/**                                                                       */
/**************************************************************************/
/**************************************************************************/

#define UX_SOURCE_CODE


/* Include necessary system files.  */

#include "ux_api.h"
#include "ux_device_class_storage.h"
#include "ux_device_stack.h"


#if UX_SLAVE_REQUEST_DATA_MAX_LENGTH < UX_SLAVE_CLASS_STORAGE_READ_CAPACITY_RESPONSE_LENGTH
/* #error UX_SLAVE_REQUEST_DATA_MAX_LENGTH is too small, please check  */
/* Build option checked runtime by UX_ASSERT  */
#endif

/**************************************************************************/
/*                                                                        */
/*  FUNCTION                                               RELEASE        */
/*                                                                        */
/*    _ux_device_class_storage_read_capacity              PORTABLE C      */
/*                                                           6.3.0        */
/*  AUTHOR                                                                */
/*                                                                        */
/*    Chaoqiong Xiao, Microsoft Corporation                               */
/*                                                                        */
/*  DESCRIPTION                                                           */
/*                                                                        */
/*    This function performs a READ_CAPACITY command.                     */
/*                                                                        */
/*  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_device_stack_transfer_request     Transfer request              */
/*    _ux_device_stack_endpoint_stall       Stall endpoint                */
/*    _ux_utility_long_put_big_endian       Put 32-bit big endian         */
/*    _ux_utility_memory_set                Set memory                    */
/*                                                                        */
/*  CALLED BY                                                             */
/*                                                                        */
/*    Device Storage Class                                                */
/*                                                                        */
/**************************************************************************/
UINT  _ux_device_class_storage_read_capacity(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_SLAVE_TRANSFER       *transfer_request;
UCHAR                   *read_capacity_buffer;

    UX_PARAMETER_NOT_USED(cbwcb);
    UX_PARAMETER_NOT_USED(endpoint_out);

    /* Build option check.  */
    UX_ASSERT(UX_SLAVE_REQUEST_DATA_MAX_LENGTH >= UX_SLAVE_CLASS_STORAGE_READ_CAPACITY_RESPONSE_LENGTH);

    /* If trace is enabled, insert this event into the trace buffer.  */
    UX_TRACE_IN_LINE_INSERT(UX_TRACE_DEVICE_CLASS_STORAGE_READ_CAPACITY, 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;

        /* We need to STALL the IN endpoint.  The endpoint will be reset by the host.  */
        _ux_device_stack_endpoint_stall(endpoint_in);

        /* Return error.  */
        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);

    /* Update the request sense.  */
    storage -> ux_slave_class_storage_lun[lun].ux_slave_class_storage_request_sense_status = media_status;

    /* Check the status for error.  */
    if (status != UX_SUCCESS)
    {

#if !defined(UX_DEVICE_STANDALONE)

        /* We need to STALL the IN endpoint.  The endpoint will be reset by the host.  */
        _ux_device_stack_endpoint_stall(endpoint_in);
#endif

        /* Now we set the CSW with Error.  */
        storage -> ux_slave_class_storage_csw_status = UX_SLAVE_CLASS_STORAGE_CSW_FAILED;
        status = UX_SUCCESS;
    }
    else
    {

        /* Obtain the pointer to the transfer request.  */
        transfer_request =  &endpoint_in -> ux_slave_endpoint_transfer_request;

        /* Obtain read capacity response buffer.  */
        read_capacity_buffer = transfer_request -> ux_slave_transfer_request_data_pointer;

        /* Ensure it is cleaned.  */
        _ux_utility_memory_set(read_capacity_buffer, 0, UX_SLAVE_CLASS_STORAGE_READ_CAPACITY_RESPONSE_LENGTH); /* Use case of memcpy is verified. */

        /* Insert the last LBA address in the response.  */
        _ux_utility_long_put_big_endian(&read_capacity_buffer[UX_SLAVE_CLASS_STORAGE_READ_CAPACITY_RESPONSE_LAST_LBA],
                                        storage -> ux_slave_class_storage_lun[lun].ux_slave_class_storage_media_last_lba);

        /* Insert the block length in the response.  */
        _ux_utility_long_put_big_endian(&read_capacity_buffer[UX_SLAVE_CLASS_STORAGE_READ_CAPACITY_RESPONSE_BLOCK_SIZE],
                                        storage -> ux_slave_class_storage_lun[lun].ux_slave_class_storage_media_block_length);

#if defined(UX_DEVICE_STANDALONE)

        /* Next: Transfer (DATA).  */
        storage -> ux_device_class_storage_state = UX_DEVICE_CLASS_STORAGE_STATE_TRANS_START;
        storage -> ux_device_class_storage_cmd_state = UX_DEVICE_CLASS_STORAGE_CMD_READ;

        storage -> ux_device_class_storage_transfer = transfer_request;
        storage -> ux_device_class_storage_device_length =
                        UX_SLAVE_CLASS_STORAGE_READ_CAPACITY_RESPONSE_LENGTH;
        storage -> ux_device_class_storage_data_length =
                        UX_SLAVE_CLASS_STORAGE_READ_CAPACITY_RESPONSE_LENGTH;
        storage -> ux_device_class_storage_data_count = 0;
        UX_SLAVE_TRANSFER_STATE_RESET(storage -> ux_device_class_storage_transfer);

#else

        /* Send a data payload with the read_capacity response buffer.  */
        _ux_device_stack_transfer_request(transfer_request,
                                      UX_SLAVE_CLASS_STORAGE_READ_CAPACITY_RESPONSE_LENGTH,
                                      UX_SLAVE_CLASS_STORAGE_READ_CAPACITY_RESPONSE_LENGTH);
#endif

        /* Now we set the CSW with success.  */
        storage -> ux_slave_class_storage_csw_status = UX_SLAVE_CLASS_STORAGE_CSW_PASSED;
        status = UX_SUCCESS;
    }

    /* Return completion status.  */
    return(status);
}


Generated by: GCOVR (Version 4.1)

Line	Branch	Exec	Source
1			/***************************************************************************
2			* Copyright (c) 2024 Microsoft Corporation
3			* Copyright (c) 2026-present Eclipse ThreadX contributors
4			*
5			* This program and the accompanying materials are made available under the
6			* terms of the MIT License which is available at
7			* https://opensource.org/licenses/MIT.
8			*
9			* SPDX-License-Identifier: MIT
10			**************************************************************************/
11
12
13			/**************************************************************************/
14			/**************************************************************************/
15			/** */
16			/** USBX Component */
17			/** */
18			/** Device Storage Class */
19			/** */
20			/**************************************************************************/
21			/**************************************************************************/
22
23			#define UX_SOURCE_CODE
24
25
26			/* Include necessary system files. */
27
28			#include "ux_api.h"
29			#include "ux_device_class_storage.h"
30			#include "ux_device_stack.h"
31
32
33			#if UX_SLAVE_REQUEST_DATA_MAX_LENGTH < UX_SLAVE_CLASS_STORAGE_READ_CAPACITY_RESPONSE_LENGTH
34			/* #error UX_SLAVE_REQUEST_DATA_MAX_LENGTH is too small, please check */
35			/* Build option checked runtime by UX_ASSERT */
36			#endif
37
38			/**************************************************************************/
39			/* */
40			/* FUNCTION RELEASE */
41			/* */
42			/* _ux_device_class_storage_read_capacity PORTABLE C */
43			/* 6.3.0 */
44			/* AUTHOR */
45			/* */
46			/* Chaoqiong Xiao, Microsoft Corporation */
47			/* */
48			/* DESCRIPTION */
49			/* */
50			/* This function performs a READ_CAPACITY command. */
51			/* */
52			/* INPUT */
53			/* */
54			/* storage Pointer to storage class */
55			/* lun Logical unit number */
56			/* endpoint_in Pointer to IN endpoint */
57			/* endpoint_out Pointer to OUT endpoint */
58			/* cbwcb Pointer to CBWCB */
59			/* */
60			/* OUTPUT */
61			/* */
62			/* Completion Status */
63			/* */
64			/* CALLS */
65			/* */
66			/* _ux_device_stack_transfer_request Transfer request */
67			/* _ux_device_stack_endpoint_stall Stall endpoint */
68			/* _ux_utility_long_put_big_endian Put 32-bit big endian */
69			/* _ux_utility_memory_set Set memory */
70			/* */
71			/* CALLED BY */
72			/* */
73			/* Device Storage Class */
74			/* */
75			/**************************************************************************/
76		184	UINT _ux_device_class_storage_read_capacity(UX_SLAVE_CLASS_STORAGE *storage, ULONG lun,
77			UX_SLAVE_ENDPOINT *endpoint_in,
78			UX_SLAVE_ENDPOINT endpoint_out, UCHAR cbwcb)
79			{
80
81			UINT status;
82			ULONG media_status;
83			UX_SLAVE_TRANSFER *transfer_request;
84			UCHAR *read_capacity_buffer;
85
86			UX_PARAMETER_NOT_USED(cbwcb);
87			UX_PARAMETER_NOT_USED(endpoint_out);
88
89			/* Build option check. */
90			UX_ASSERT(UX_SLAVE_REQUEST_DATA_MAX_LENGTH >= UX_SLAVE_CLASS_STORAGE_READ_CAPACITY_RESPONSE_LENGTH);
91
92			/* If trace is enabled, insert this event into the trace buffer. */
93			UX_TRACE_IN_LINE_INSERT(UX_TRACE_DEVICE_CLASS_STORAGE_READ_CAPACITY, storage, lun, 0, 0, UX_TRACE_DEVICE_CLASS_EVENTS, 0, 0)
94
95	✗✓	184	if (storage -> ux_slave_class_storage_lun[lun].ux_slave_class_storage_medium_loaded_status == 0)
96			{
97			/* Media not loaded. Set NOT READY sense code. */
98			storage -> ux_slave_class_storage_lun[lun].ux_slave_class_storage_request_sense_status =
99			UX_DEVICE_CLASS_STORAGE_SENSE_STATUS(UX_SLAVE_CLASS_STORAGE_SENSE_KEY_NOT_READY,
100			UX_SLAVE_CLASS_STORAGE_SENSE_CODE_NOT_PRESENT, 0x00);
101
102			/* Return CSW with failure. */
103			storage -> ux_slave_class_storage_csw_status = UX_SLAVE_CLASS_STORAGE_CSW_FAILED;
104
105			/* We need to STALL the IN endpoint. The endpoint will be reset by the host. */
106			_ux_device_stack_endpoint_stall(endpoint_in);
107
108			/* Return error. */
109			return(UX_SUCCESS);
110			}
111
112			/* Obtain the status of the device. */
113		184	status = storage -> ux_slave_class_storage_lun[lun].ux_slave_class_storage_media_status(storage, lun,
114			storage -> ux_slave_class_storage_lun[lun].ux_slave_class_storage_media_id, &media_status);
115
116			/* Update the request sense. */
117		184	storage -> ux_slave_class_storage_lun[lun].ux_slave_class_storage_request_sense_status = media_status;
118
119			/* Check the status for error. */
120	✓✓	184	if (status != UX_SUCCESS)
121			{
122
123			#if !defined(UX_DEVICE_STANDALONE)
124
125			/* We need to STALL the IN endpoint. The endpoint will be reset by the host. */
126		13	_ux_device_stack_endpoint_stall(endpoint_in);
127			#endif
128
129			/* Now we set the CSW with Error. */
130		13	storage -> ux_slave_class_storage_csw_status = UX_SLAVE_CLASS_STORAGE_CSW_FAILED;
131		13	status = UX_SUCCESS;
132			}
133			else
134			{
135
136			/* Obtain the pointer to the transfer request. */
137		171	transfer_request = &endpoint_in -> ux_slave_endpoint_transfer_request;
138
139			/* Obtain read capacity response buffer. */
140		171	read_capacity_buffer = transfer_request -> ux_slave_transfer_request_data_pointer;
141
142			/* Ensure it is cleaned. */
143		171	_ux_utility_memory_set(read_capacity_buffer, 0, UX_SLAVE_CLASS_STORAGE_READ_CAPACITY_RESPONSE_LENGTH); /* Use case of memcpy is verified. */
144
145			/* Insert the last LBA address in the response. */
146		171	_ux_utility_long_put_big_endian(&read_capacity_buffer[UX_SLAVE_CLASS_STORAGE_READ_CAPACITY_RESPONSE_LAST_LBA],
147			storage -> ux_slave_class_storage_lun[lun].ux_slave_class_storage_media_last_lba);
148
149			/* Insert the block length in the response. */
150		171	_ux_utility_long_put_big_endian(&read_capacity_buffer[UX_SLAVE_CLASS_STORAGE_READ_CAPACITY_RESPONSE_BLOCK_SIZE],
151			storage -> ux_slave_class_storage_lun[lun].ux_slave_class_storage_media_block_length);
152
153			#if defined(UX_DEVICE_STANDALONE)
154
155			/* Next: Transfer (DATA). */
156			storage -> ux_device_class_storage_state = UX_DEVICE_CLASS_STORAGE_STATE_TRANS_START;
157			storage -> ux_device_class_storage_cmd_state = UX_DEVICE_CLASS_STORAGE_CMD_READ;
158
159			storage -> ux_device_class_storage_transfer = transfer_request;
160			storage -> ux_device_class_storage_device_length =
161			UX_SLAVE_CLASS_STORAGE_READ_CAPACITY_RESPONSE_LENGTH;
162			storage -> ux_device_class_storage_data_length =
163			UX_SLAVE_CLASS_STORAGE_READ_CAPACITY_RESPONSE_LENGTH;
164			storage -> ux_device_class_storage_data_count = 0;
165			UX_SLAVE_TRANSFER_STATE_RESET(storage -> ux_device_class_storage_transfer);
166
167			#else
168
169			/* Send a data payload with the read_capacity response buffer. */
170		171	_ux_device_stack_transfer_request(transfer_request,
171			UX_SLAVE_CLASS_STORAGE_READ_CAPACITY_RESPONSE_LENGTH,
172			UX_SLAVE_CLASS_STORAGE_READ_CAPACITY_RESPONSE_LENGTH);
173			#endif
174
175			/* Now we set the CSW with success. */
176		171	storage -> ux_slave_class_storage_csw_status = UX_SLAVE_CLASS_STORAGE_CSW_PASSED;
177		171	status = UX_SUCCESS;
178			}
179
180			/* Return completion status. */
181		184	return(status);
182			}