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common/usbx_device_classes/src/ux_device_class_storage_get_configuration.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 */
/** */
/**************************************************************************/
/**************************************************************************/
#define UX_SOURCE_CODE
/* Include necessary system files. */
#include "ux_api.h"
#include "ux_device_class_storage.h"
#include "ux_device_stack.h"
#define USBX_DEVICE_CLASS_STORAGE_CONFIGURATION_PROFILE_LENGTH 228
#define USBX_DEVICE_CLASS_STORAGE_CONFIGURATION_HEADER_LENGTH 8
#define USBX_DEVICE_CLASS_STORAGE_CONFIGURATION_FEATURE_DESCRIPTOR_LENGTH 32
#define USBX_DEVICE_CLASS_STORAGE_CONFIGURATION_FEATURE_HEADER_LENGTH 4
#define USBX_DEVICE_CLASS_STORAGE_CONFIGURATION_FEATURE_LENGTH (USBX_DEVICE_CLASS_STORAGE_CONFIGURATION_PROFILE_LENGTH - USBX_DEVICE_CLASS_STORAGE_CONFIGURATION_FEATURE_DESCRIPTOR_LENGTH - USBX_DEVICE_CLASS_STORAGE_CONFIGURATION_HEADER_LENGTH)
UCHAR usbx_device_class_storage_configuration_profile[] = {
/* Feature Header */
0x00, 0x00, /* Entire length of profile filled by firmware */
0x00, 0x00,
0x00, 0x00,
0x00, 0x00, /* Current profile */
/* Feature Descriptor */
0x00, 0x00, /* Feature Code : profile list */
0x00, /* Persistent/current */
0x1c, /* Additional Length */
0x00, 0x12, 0x00, 0x00, /* DVD-RAM */
0x00, 0x11, 0x00, 0x00, /* DVD-R */
0x00, 0x10, 0x00, 0x00, /* DVD-ROM */
0x00, 0x0A, 0x00, 0x00, /* CD-RW */
0x00, 0x09, 0x00, 0x00, /* CD-R */
0x00, 0x08, 0x00, 0x00, /* CD-ROM */
0x00, 0x02, 0x00, 0x00, /* Writable capable with removable media. */
/* Feature Descriptor */
0x00, 0x01, /* Feature Code : core feature */
0x0b, /* Persistent/current */
0x08, /* Additional Length */
0x00, 0x00, 0x00, 0x07, /* Physical Interface Standard */
0x01, 0x00, 0x00, 0x00, /* */
/* Feature Descriptor */
0x00, 0x02, /* Feature Code : morphing (Ability to notify initiator about
operational changes and accept initiator requests to prevent
operational changes) */
0x07, /* Persistent/current */
0x04, /* Additional Length */
0x02, 0x00, 0x00, 0x00, /* Physical Interface Standard */
/* Feature Descriptor */
0x00, 0x03, /* Feature Code : Removable Medium (The medium may be removed
from the device ) */
0x0b, /* Persistent/current */
0x04, /* Additional Length */
0x2b, 0x00, 0x00, 0x00, /* Physical Interface Standard */
/* Feature Descriptor */
0x00, 0x10, /* Feature Code : Random Readable (Read ability for storage devices
with random addressing) */
0x00, /* Persistent/current */
0x08, /* Additional Length */
0x00, 0x00, 0x08, 0x00, /* */
0x00, 0x01, 0x01, 0x00, /* */
/* Feature Descriptor */
0x00, 0x1d, /* Feature Code : MultiRead (The logical unit can read all CD media types) */
0x00, /* Persistent/current */
0x00, /* Additional Length */
/* Feature Descriptor */
0x00, 0x1e, /* Feature Code : CD Read (The ability to read CD specific structures) */
0x08, /* Persistent/current */
0x04, /* Additional Length */
0x03, 0x00, 0x00, 0x00, /* */
/* Feature Descriptor */
0x00, 0x1f, /* Feature Code : DVD Read (The ability to read DVD specific structures) */
0x08, /* Persistent/current */
0x04, /* Additional Length */
0x01, 0x00, 0x01, 0x00, /* */
/* Feature Descriptor */
0x00, 0x20, /* Feature Code : Random Writable (Write support for randomly addressed writes) */
0x04, /* Persistent/current */
0x0c, /* Additional Length */
0x00, 0x00, 0x00, 0x00, /* */
0x00, 0x00, 0x08, 0x00, /* */
0x00, 0x00, 0x01, 0x00, /* */
/* Feature Descriptor */
0x00, 0x21, /* Feature Code : Incremental Streaming Writable (Write support for sequential recording) */
0x0C, /* Persistent/current */
0x08, /* Additional Length */
0x00, 0x00, 0x00, 0x00, /* */
0x00, 0x00, 0x00, 0x00, /* */
/* Feature Descriptor */
0x00, 0x23, /* Feature Code : Formattable (Support for formatting of media.) */
0x08, /* Persistent/current */
0x08, /* Additional Length */
0x00, 0x00, 0x00, 0x00, /* */
0x00, 0x00, 0x00, 0x00, /* */
/* Feature Descriptor */
0x00, 0x24, /* Feature Code : Defect Management (Ability of the drive/media system to provide an
apparently defect-free space.) */
0x04, /* Persistent/current */
0x04, /* Additional Length */
0x80, 0x00, 0x00, 0x00, /* */
/* Feature Descriptor */
0x00, 0x26, /* Feature Code : Restricted Overwrite (Write support for media that must be written
in multiples of logical blocks.) */
0x00, /* Persistent/current */
0x00, /* Additional Length */
/* Feature Descriptor */
0x00, 0x2d, /* Feature Code : CD Track at Once (Ability to write CD with Track at Once recording) */
0x08, /* Persistent/current */
0x04, /* Additional Length */
0x46, 0x00, 0x3f, 0x0f, /* */
/* Feature Descriptor */
0x00, 0x2e, /* Feature Code : CD Mastering (The ability to write CD with Session at Once or Raw write methods.) */
0x04, /* Persistent/current */
0x04, /* Additional Length */
0x7f, 0x00, 0x0d, 0x00, /* */
/* Feature Descriptor */
0x00, 0x2f, /* Feature Code : DVD-R Write (The ability to write DVD specific structures) */
0x08, /* Persistent/current */
0x04, /* Additional Length */
0x4e, 0x00, 0x00, 0x00, /* */
0x01, 0x00, /* Feature Code : Power Management (Initiator and device directed power management) */
0x07, /* Persistent/current */
0x04, /* Additional Length */
0x00, 0x00, 0x00, 0x00, /* */
0x01, 0x01, /* Feature Code : S.M.A.R.T. (Self Monitoring Analysis and Reporting Technology (Failure prediction)) */
0x00, /* Persistent/current */
0x04, /* Additional Length */
0x00, 0x00, 0x00, 0x00, /* */
0x01, 0x08, /* Feature Code : Logical Unit serial number (Logical unit has a unique identifier) */
0x03, /* Persistent/current */
0x10, /* Additional Length */
0x53, 0x31, 0x33, 0x36, /* Serial Number */
0x36, 0x59, 0x42, 0x46,
0x37, 0x30, 0x30, 0x39,
0x45, 0x48, 0x20, 0x20,
0x01, 0x0a, /* Feature Code : Not sure : says FDC STC TOC */
0x00, /* Persistent/current */
0x0c, /* Additional Length */
0x46, 0x44, 0x43, 0x00,
0x53, 0x54, 0x43, 0x00,
0x54, 0x4F, 0x43, 0x00,
};
#define USBX_DEVICE_CLASS_STORAGE_CONFIGURATION_ACTIVE_PROFILE_LENGTH 112
#define USBX_DEVICE_CLASS_STORAGE_CONFIGURATION_ACTIVE_HEADER_LENGTH 8
#define USBX_DEVICE_CLASS_STORAGE_CONFIGURATION_ACTIVE_FEATURE_DESCRIPTOR_LENGTH 32
#define USBX_DEVICE_CLASS_STORAGE_CONFIGURATION_ACTIVE_FEATURE_HEADER_LENGTH 4
#define USBX_DEVICE_CLASS_STORAGE_CONFIGURATION_ACTIVE_FEATURE_LENGTH (USBX_DEVICE_CLASS_STORAGE_CONFIGURATION_ACTIVE_PROFILE_LENGTH - USBX_DEVICE_CLASS_STORAGE_CONFIGURATION_ACTIVE_FEATURE_DESCRIPTOR_LENGTH - USBX_DEVICE_CLASS_STORAGE_CONFIGURATION_ACTIVE_HEADER_LENGTH)
UCHAR usbx_device_class_storage_configuration_active_profile[] = {
/* Feature Header */
0x00, 0x00, /* Entire length of profile filled by firmware */
0x00, 0x00,
0x00, 0x00,
0x00, 0x08, /* Current profile is CD-ROM*/
/* Feature Descriptor */
0x00, 0x00, /* Feature Code : profile list */
0x00, /* Persistent/current */
0x1c, /* Additional Length */
0x00, 0x12, 0x00, 0x00, /* DVD-RAM */
0x00, 0x11, 0x00, 0x00, /* DVD-R */
0x00, 0x10, 0x00, 0x00, /* DVD-ROM */
0x00, 0x0A, 0x00, 0x00, /* CD-RW */
0x00, 0x09, 0x00, 0x00, /* CD-R */
0x00, 0x08, 0x01, 0x00, /* CD-ROM : active profile */
0x00, 0x02, 0x00, 0x00, /* Writable capable with removable media. */
/* Feature Descriptor */
0x00, 0x01, /* Feature Code : core feature */
0x0b, /* Persistent/current */
0x08, /* Additional Length */
0x00, 0x00, 0x00, 0x07, /* Physical Interface Standard */
0x01, 0x00, 0x00, 0x00, /* */
/* Feature Descriptor */
0x00, 0x02, /* Feature Code : morphing (Ability to notify initiator about
operational changes and accept initiator requests to prevent
operational changes) */
0x07, /* Persistent/current */
0x04, /* Additional Length */
0x02, 0x00, 0x00, 0x00, /* Physical Interface Standard */
/* Feature Descriptor */
0x00, 0x03, /* Feature Code : Removable Medium (The medium may be removed
from the device ) */
0x0b, /* Persistent/current */
0x04, /* Additional Length */
0x2b, 0x00, 0x00, 0x00, /* Physical Interface Standard */
/* Feature Descriptor */
0x00, 0x10, /* Feature Code : Random Readable (Read ability for storage devices
with random addressing) */
0x01, /* Persistent/current */
0x08, /* Additional Length */
0x00, 0x00, 0x08, 0x00, /* */
0x00, 0x01, 0x01, 0x00, /* */
/* Feature Descriptor */
0x00, 0x1d, /* Feature Code : MultiRead (The logical unit can read all CD media types) */
0x01, /* Persistent/current */
0x00, /* Additional Length */
/* Feature Descriptor */
0x00, 0x1e, /* Feature Code : CD Read (The ability to read CD specific structures) */
0x09, /* Persistent/current */
0x04, /* Additional Length */
0x03, 0x00, 0x00, 0x00, /* */
0x01, 0x08, /* Feature Code : Logical Unit serial number (Logical unit has a unique identifier) */
0x03, /* Persistent/current */
0x10, /* Additional Length */
0x53, 0x31, 0x33, 0x36, /* Serial Number */
0x36, 0x59, 0x42, 0x46,
0x37, 0x30, 0x30, 0x39,
0x45, 0x48, 0x20, 0x20,
};
#if (UX_SLAVE_REQUEST_DATA_MAX_LENGTH < USBX_DEVICE_CLASS_STORAGE_CONFIGURATION_ACTIVE_PROFILE_LENGTH) ||\
(UX_SLAVE_REQUEST_DATA_MAX_LENGTH < USBX_DEVICE_CLASS_STORAGE_CONFIGURATION_PROFILE_LENGTH)
#error UX_SLAVE_REQUEST_DATA_MAX_LENGTH too small, please check
#endif
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _ux_device_class_storage_get_configuration PORTABLE C */
/* 6.1.10 */
/* AUTHOR */
/* */
/* Chaoqiong Xiao, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function performs a GET_CONFIGURATION command. */
/* */
/* 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_device_class_storage_csw_send Send CSW */
/* _ux_device_stack_transfer_request Transfer request */
/* _ux_device_stack_endpoint_stall Stall endpoint */
/* _ux_utility_short_get_big_endian Get 16-bit big endian */
/* _ux_utility_long_put_big_endian Put 32-bit big endian */
/* _ux_utility_memory_copy Copy memory */
/* */
/* 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, */
/* verified memset and memcpy */
/* cases, */
/* resulting in version 6.1 */
/* 01-31-2022 Chaoqiong Xiao Modified comment(s), */
/* added standalone support, */
/* resulting in version 6.1.10 */
/* */
/**************************************************************************/
UINT _ux_device_class_storage_get_configuration(UX_SLAVE_CLASS_STORAGE *storage, ULONG lun,
UX_SLAVE_ENDPOINT *endpoint_in,
UX_SLAVE_ENDPOINT *endpoint_out, UCHAR * cbwcb)
{
UINT status = 0;
UX_SLAVE_TRANSFER *transfer_request;
ULONG starting_feature;
ULONG allocation_length;
ULONG additional_length;
ULONG profile_counter;
UCHAR *profile_pointer;
ULONG feature;
UX_PARAMETER_NOT_USED(endpoint_out);
/* If trace is enabled, insert this event into the trace buffer. */
UX_TRACE_IN_LINE_INSERT(UX_TRACE_DEVICE_CLASS_STORAGE_GET_CONFIGURATION, storage, lun, 0, 0, UX_TRACE_DEVICE_CLASS_EVENTS, 0, 0)
/* Initialize the length of the configuration profile. */
_ux_utility_long_put_big_endian(usbx_device_class_storage_configuration_profile, (USBX_DEVICE_CLASS_STORAGE_CONFIGURATION_PROFILE_LENGTH - 4));
/* Initialize the length of the active configuration profile. */
_ux_utility_long_put_big_endian(usbx_device_class_storage_configuration_active_profile, (USBX_DEVICE_CLASS_STORAGE_CONFIGURATION_ACTIVE_PROFILE_LENGTH - 4));
/* Obtain the pointer to the transfer request. */
transfer_request = &endpoint_in -> ux_slave_endpoint_transfer_request;
/* Get the Starting Feature. */
starting_feature = _ux_utility_short_get_big_endian(cbwcb + UX_SLAVE_CLASS_STORAGE_GET_CONFIGURATION_STARTING_FEATURE);
/* Get the allocation length. */
allocation_length = _ux_utility_short_get_big_endian(cbwcb + UX_SLAVE_CLASS_STORAGE_GET_CONFIGURATION_ALLOCATION_LENGTH);
/* Default CSW to success. */
storage -> ux_slave_class_storage_csw_status = UX_SLAVE_CLASS_STORAGE_CSW_PASSED;
/* Is the request demanding all the features ? */
if (starting_feature == 0)
{
/* Is the requester demanding the active profile ? */
if ((*(cbwcb + UX_SLAVE_CLASS_STORAGE_GET_CONFIGURATION_RT) & 3) == 1)
{
/* We get the active profile. */
/* Can we send all the activeconfiguration profile ? If not, the host may demand the first part of the configuration to get the entire length.
In this case, return the length demanded by the host. */
if (allocation_length >= USBX_DEVICE_CLASS_STORAGE_CONFIGURATION_ACTIVE_PROFILE_LENGTH)
/* Adjust allocation length to maximum allowed. */
allocation_length = USBX_DEVICE_CLASS_STORAGE_CONFIGURATION_ACTIVE_PROFILE_LENGTH;
/* Copy the CSW into the transfer request memory. */
_ux_utility_memory_copy(transfer_request -> ux_slave_transfer_request_data_pointer,
usbx_device_class_storage_configuration_active_profile,
allocation_length); /* Use case of memcpy is verified. */
}
else
{
/* We get the whole profile. */
/* Can we send all the configuration profile ? If not, the host may demand the first part of the configuration to get the entire length.
In this case, return the length demanded by the host. */
if (allocation_length >= USBX_DEVICE_CLASS_STORAGE_CONFIGURATION_PROFILE_LENGTH)
/* Adjust allocation length to maximum allowed. */
allocation_length = USBX_DEVICE_CLASS_STORAGE_CONFIGURATION_PROFILE_LENGTH;
/* Copy the CSW into the transfer request memory. */
_ux_utility_memory_copy(transfer_request -> ux_slave_transfer_request_data_pointer,
usbx_device_class_storage_configuration_profile,
allocation_length); /* Use case of memcpy is verified. */
}
/* Now success. */
status = UX_SUCCESS;
}
else
{
/* The caller has demanded a specific feature. Scan our configuration profile. Jump over the beginning sections. */
profile_pointer = usbx_device_class_storage_configuration_profile + USBX_DEVICE_CLASS_STORAGE_CONFIGURATION_HEADER_LENGTH +
USBX_DEVICE_CLASS_STORAGE_CONFIGURATION_FEATURE_DESCRIPTOR_LENGTH;
profile_counter = USBX_DEVICE_CLASS_STORAGE_CONFIGURATION_FEATURE_LENGTH;
/* Scan our configuration profile. */
while (profile_counter != 0)
{
/* Extract the feature from the configuration profile. */
feature = _ux_utility_short_get_big_endian(profile_pointer + USBX_DEVICE_CLASS_STORAGE_FEATURE_DESCRIPTOR_FEATURE_CODE);
/* Extract the feature length from the configuration profile. */
additional_length = (ULONG ) *(profile_pointer + USBX_DEVICE_CLASS_STORAGE_FEATURE_DESCRIPTOR_FEATURE_ADD_LENGTH);
/* Compare the Feature extracted with the one demanded. */
if (feature == starting_feature)
{
/* We found the feature, we check if the requester has enough space for us to return it. */
if (allocation_length >= (additional_length + USBX_DEVICE_CLASS_STORAGE_CONFIGURATION_HEADER_LENGTH +
USBX_DEVICE_CLASS_STORAGE_CONFIGURATION_FEATURE_HEADER_LENGTH))
/* Need to adjust the allocation length. */
allocation_length = additional_length + USBX_DEVICE_CLASS_STORAGE_CONFIGURATION_HEADER_LENGTH +
USBX_DEVICE_CLASS_STORAGE_CONFIGURATION_FEATURE_HEADER_LENGTH;
/* Copy the CSW into the transfer request memory. */
_ux_utility_memory_copy(transfer_request -> ux_slave_transfer_request_data_pointer,
profile_pointer,
allocation_length); /* Use case of memcpy is verified. */
/* Now success. */
status = UX_SUCCESS;
/* Get out of the loop. */
break;
}
else
{
/* We have not yet found the feature, keep parsing. */
if (profile_counter - additional_length - USBX_DEVICE_CLASS_STORAGE_CONFIGURATION_FEATURE_HEADER_LENGTH <= 0)
{
/* We are either at the end of the profile or the profile is corrupted. */
/* And update the REQUEST_SENSE codes. */
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_ILLEGAL_REQUEST,0x26,0x02);
/* Now we set the CSW with failure. */
storage -> ux_slave_class_storage_csw_status = UX_SLAVE_CLASS_STORAGE_CSW_FAILED;
/* Set status to error. */
status = UX_ERROR;
/* Get out of the loop. */
break;
}
else
{
/* Update the profile pointer. */
profile_pointer += additional_length + USBX_DEVICE_CLASS_STORAGE_CONFIGURATION_FEATURE_HEADER_LENGTH;
/* Update the length remaining to parse in profile. */
profile_counter -= additional_length + USBX_DEVICE_CLASS_STORAGE_CONFIGURATION_FEATURE_HEADER_LENGTH;
}
}
}
}
/* Success, send data. */
if (status == UX_SUCCESS)
{
#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 = allocation_length;
storage -> ux_device_class_storage_data_length = allocation_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,
allocation_length,
allocation_length);
#endif
}
else
{
/* Error, stall. */
#if !defined(UX_DEVICE_STANDALONE)
_ux_device_stack_endpoint_stall(endpoint_in);
#endif
}
/* Return completion status. */
return(status);
}