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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 Audio Class */
/** */
/**************************************************************************/
/**************************************************************************/
#define UX_SOURCE_CODE
/* Include necessary system files. */
#include "ux_api.h"
#include "ux_device_class_audio.h"
#include "ux_device_stack.h"
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _ux_device_class_audio_initialize PORTABLE C */
/* 6.3.0 */
/* AUTHOR */
/* */
/* Chaoqiong Xiao, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function initializes the USB Audio device. */
/* */
/* INPUT */
/* */
/* command Pointer to audio command */
/* */
/* OUTPUT */
/* */
/* Completion Status */
/* */
/* CALLS */
/* */
/* _ux_utility_memory_allocate Allocate memory */
/* _ux_utility_memory_copy Copy memory */
/* _ux_utility_memory_free Free memory */
/* _ux_device_thread_create Create thread to use */
/* _ux_device_thread_delete Delete thread */
/* */
/* CALLED BY */
/* */
/* Device Audio Class */
/* */
/**************************************************************************/
UINT _ux_device_class_audio_initialize(UX_SLAVE_CLASS_COMMAND *command)
{
UINT status = UX_SUCCESS;
UX_DEVICE_CLASS_AUDIO *audio;
UX_DEVICE_CLASS_AUDIO_PARAMETER *audio_parameter;
UX_DEVICE_CLASS_AUDIO_STREAM *stream;
UX_DEVICE_CLASS_AUDIO_STREAM_PARAMETER *stream_parameter;
UX_SLAVE_CLASS *audio_class;
ULONG memory_size;
ULONG streams_size;
ULONG i;
/* Get the class container. */
audio_class = command -> ux_slave_class_command_class_ptr;
/* Get the pointer to the application parameters for the audio class. */
audio_parameter = (UX_DEVICE_CLASS_AUDIO_PARAMETER *)command -> ux_slave_class_command_parameter;
/* Create an instance of the device audio class, with additional streams and controls instances. */
memory_size = sizeof(UX_DEVICE_CLASS_AUDIO);
/* Put 0 to default result. */
streams_size = 0;
/* Confirm there is no overflow on multiply. */
UX_UTILITY_MULC_SAFE(audio_parameter -> ux_device_class_audio_parameter_streams_nb, (ULONG)sizeof(UX_DEVICE_CLASS_AUDIO_STREAM), streams_size, status);
if (status != UX_SUCCESS)
return(status);
/* Confirm there is no overflow on add. */
UX_UTILITY_ADD_SAFE(memory_size, streams_size, memory_size, status);
if (status != UX_SUCCESS)
return(status);
/* Create buffer for audio and controls. */
audio = (UX_DEVICE_CLASS_AUDIO *)_ux_utility_memory_allocate(UX_NO_ALIGN, UX_REGULAR_MEMORY, memory_size);
/* Check for successful allocation. */
if (audio == UX_NULL)
return(UX_MEMORY_INSUFFICIENT);
#if defined(UX_DEVICE_CLASS_AUDIO_INTERRUPT_SUPPORT)
/* Create resources for interrupt endpoint support. */
/* Get status data size. */
audio -> ux_device_class_audio_status_size =
audio_parameter -> ux_device_class_audio_parameter_status_size;
/* Calculate queue size in bytes. */
if (UX_OVERFLOW_CHECK_MULV_ULONG(
audio_parameter -> ux_device_class_audio_parameter_status_queue_size,
audio_parameter -> ux_device_class_audio_parameter_status_size))
{
_ux_utility_memory_free(audio);
return(UX_MATH_OVERFLOW);
}
memory_size = audio_parameter -> ux_device_class_audio_parameter_status_queue_size *
audio_parameter -> ux_device_class_audio_parameter_status_size;
audio -> ux_device_class_audio_status_queue_bytes = memory_size;
#if !defined(UX_DEVICE_STANDALONE)
if (UX_OVERFLOW_CHECK_ADD_ULONG(memory_size, UX_DEVICE_CLASS_AUDIO_INTERRUPT_THREAD_STACK_SIZE))
{
_ux_utility_memory_free(audio);
return(UX_MATH_OVERFLOW);
}
memory_size += UX_DEVICE_CLASS_AUDIO_INTERRUPT_THREAD_STACK_SIZE;
audio_class -> ux_slave_class_thread_stack = _ux_utility_memory_allocate(UX_NO_ALIGN, UX_REGULAR_MEMORY, memory_size);
if (audio_class -> ux_slave_class_thread_stack == UX_NULL)
status = UX_MEMORY_INSUFFICIENT;
if (status == UX_SUCCESS)
{
status = _ux_device_thread_create(&audio_class -> ux_slave_class_thread,
"ux_device_class_audio_status_thread",
_ux_device_class_audio_interrupt_thread_entry, (ULONG)(ALIGN_TYPE)audio,
audio_class -> ux_slave_class_thread_stack,
UX_DEVICE_CLASS_AUDIO_INTERRUPT_THREAD_STACK_SIZE,
UX_THREAD_PRIORITY_CLASS, UX_THREAD_PRIORITY_CLASS,
UX_NO_TIME_SLICE, UX_DONT_START);
if (status == UX_SUCCESS)
{
UX_THREAD_EXTENSION_PTR_SET(&(audio_class -> ux_slave_class_thread), audio)
status = _ux_device_semaphore_create(&audio -> ux_device_class_audio_status_semaphore,
"ux_device_class_audio_status_semaphore", 0);
if (status == UX_SUCCESS)
{
status = _ux_device_mutex_create(&audio -> ux_device_class_audio_status_mutex,
"ux_device_class_audio_status_mutex");
if (status != UX_SUCCESS)
status = UX_MUTEX_ERROR;
if (status != UX_SUCCESS)
_ux_device_semaphore_delete(&audio -> ux_device_class_audio_status_semaphore);
}
else
status = UX_SEMAPHORE_ERROR;
if (status != UX_SUCCESS)
_ux_device_thread_delete(&audio_class -> ux_slave_class_thread);
}
else
status = UX_THREAD_ERROR;
if (status != UX_SUCCESS)
{
_ux_utility_memory_free(audio_class -> ux_slave_class_thread_stack);
audio_class -> ux_slave_class_thread_stack = UX_NULL;
}
}
if (status != UX_SUCCESS)
{
_ux_utility_memory_free(audio);
return(status);
}
/* Status queue locates right after status stack. */
audio -> ux_device_class_audio_status_queue =
(UCHAR *)audio_class -> ux_slave_class_thread_stack +
UX_DEVICE_CLASS_AUDIO_INTERRUPT_THREAD_STACK_SIZE;
#else
audio -> ux_device_class_audio_status_queue = _ux_utility_memory_allocate(UX_NO_ALIGN, UX_REGULAR_MEMORY, memory_size);
/* Check for successful allocation. */
if (audio -> ux_device_class_audio_status_queue == UX_NULL)
{
_ux_utility_memory_free(audio);
return(UX_MEMORY_INSUFFICIENT);
}
#endif
#if UX_DEVICE_ENDPOINT_BUFFER_OWNER == 1
/* Allocate memory for interrupt endpoint buffer. */
audio -> ux_device_class_audio_interrupt_buffer = _ux_utility_memory_allocate(UX_NO_ALIGN, UX_CACHE_SAFE_MEMORY,
audio_parameter -> ux_device_class_audio_parameter_status_size);
if (audio -> ux_device_class_audio_interrupt_buffer == UX_NULL)
{
_ux_utility_memory_free(audio -> ux_device_class_audio_status_queue);
_ux_utility_memory_free(audio);
return(UX_MEMORY_INSUFFICIENT);
}
#endif
#endif
/* Save streams. */
if (streams_size)
{
audio -> ux_device_class_audio_streams = (UX_DEVICE_CLASS_AUDIO_STREAM *)((UCHAR *)audio + sizeof(UX_DEVICE_CLASS_AUDIO));
audio -> ux_device_class_audio_streams_nb = audio_parameter -> ux_device_class_audio_parameter_streams_nb;
}
/* Allocate resources for streams. */
stream = audio -> ux_device_class_audio_streams;
stream_parameter = audio_parameter -> ux_device_class_audio_parameter_streams;
for (i = 0; i < audio -> ux_device_class_audio_streams_nb; i ++)
{
#if UX_DEVICE_ENDPOINT_BUFFER_OWNER == 1
#if defined(UX_DEVICE_CLASS_AUDIO_FEEDBACK_SUPPORT)
/* Allocate memory for feedback endpoint buffer. */
stream -> ux_device_class_audio_stream_feedback_buffer = _ux_utility_memory_allocate(UX_NO_ALIGN, UX_CACHE_SAFE_MEMORY,
UX_DEVICE_CLASS_AUDIO_FEEDBACK_BUFFER_SIZE);
if (stream -> ux_device_class_audio_stream_feedback_buffer == UX_NULL)
{
status = UX_MEMORY_INSUFFICIENT;
break;
}
#endif
#endif
/* Create memory block based on max frame buffer size and max number of frames buffered.
Each frame require some additional header memory (8 bytes). */
stream -> ux_device_class_audio_stream_frame_buffer_size = stream_parameter -> ux_device_class_audio_stream_parameter_max_frame_buffer_size;
if (UX_OVERFLOW_CHECK_ADD_USHORT(stream -> ux_device_class_audio_stream_frame_buffer_size, 8))
{
status = UX_ERROR;
break;
}
stream -> ux_device_class_audio_stream_frame_buffer_size += 8;
if (UX_OVERFLOW_CHECK_MULV_ULONG(stream -> ux_device_class_audio_stream_frame_buffer_size,
stream_parameter -> ux_device_class_audio_stream_parameter_max_frame_buffer_nb))
{
status = UX_ERROR;
break;
}
memory_size = stream -> ux_device_class_audio_stream_frame_buffer_size *
stream_parameter -> ux_device_class_audio_stream_parameter_max_frame_buffer_nb;
/* Create block of buffer buffer is cache safe for USB transfer. */
#if UX_DEVICE_ENDPOINT_BUFFER_OWNER == 1
stream -> ux_device_class_audio_stream_buffer = (UCHAR *)_ux_utility_memory_allocate(UX_NO_ALIGN, UX_CACHE_SAFE_MEMORY, memory_size);
#else
stream -> ux_device_class_audio_stream_buffer = (UCHAR *)_ux_utility_memory_allocate(UX_NO_ALIGN, UX_REGULAR_MEMORY, memory_size);
#endif
/* Check for successful allocation. */
if (stream -> ux_device_class_audio_stream_buffer == UX_NULL)
{
status = UX_MEMORY_INSUFFICIENT;
break;
}
stream -> ux_device_class_audio_stream_buffer_size = memory_size;
stream -> ux_device_class_audio_stream_transfer_pos = (UX_DEVICE_CLASS_AUDIO_FRAME *)stream -> ux_device_class_audio_stream_buffer;
stream -> ux_device_class_audio_stream_access_pos = stream -> ux_device_class_audio_stream_transfer_pos;
#if !defined(UX_DEVICE_STANDALONE)
/* Create memory block for streaming thread stack in addition. */
if (stream_parameter -> ux_device_class_audio_stream_parameter_thread_stack_size == 0)
memory_size = UX_DEVICE_CLASS_AUDIO_FEEDBACK_THREAD_STACK_SIZE;
else
memory_size = stream_parameter -> ux_device_class_audio_stream_parameter_thread_stack_size;
stream -> ux_device_class_audio_stream_thread_stack = _ux_utility_memory_allocate(UX_NO_ALIGN, UX_REGULAR_MEMORY, memory_size);
/* Check for successful allocation. */
if (stream -> ux_device_class_audio_stream_thread_stack == UX_NULL)
{
status = UX_MEMORY_INSUFFICIENT;
break;
}
/* Create streaming thread. */
status = _ux_device_thread_create(&stream -> ux_device_class_audio_stream_thread , "ux_device_class_audio_stream_thread",
stream_parameter -> ux_device_class_audio_stream_parameter_thread_entry,
(ULONG)(ALIGN_TYPE)stream, (VOID *) stream -> ux_device_class_audio_stream_thread_stack,
memory_size, UX_THREAD_PRIORITY_CLASS,
UX_THREAD_PRIORITY_CLASS, UX_NO_TIME_SLICE, UX_DONT_START);
/* Check for successful allocation. */
if (status != UX_SUCCESS)
{
_ux_utility_memory_free(stream -> ux_device_class_audio_stream_thread_stack);
stream -> ux_device_class_audio_stream_thread_stack = UX_NULL;
break;
}
UX_THREAD_EXTENSION_PTR_SET(&(stream -> ux_device_class_audio_stream_thread), stream)
#else
/* Save task function for streaming. */
stream -> ux_device_class_audio_stream_task_function = stream_parameter -> ux_device_class_audio_stream_parameter_task_function;
#endif
#if defined(UX_DEVICE_CLASS_AUDIO_FEEDBACK_SUPPORT)
#if !defined(UX_DEVICE_STANDALONE)
/* Check entry to confirm feedback is supported. */
if (stream_parameter -> ux_device_class_audio_stream_parameter_feedback_thread_entry)
{
/* Create memory block for streaming thread stack in addition. */
if (stream_parameter -> ux_device_class_audio_stream_parameter_feedback_thread_stack_size == 0)
memory_size = UX_THREAD_STACK_SIZE;
else
memory_size = stream_parameter -> ux_device_class_audio_stream_parameter_feedback_thread_stack_size;
stream -> ux_device_class_audio_stream_feedback_thread_stack = _ux_utility_memory_allocate(UX_NO_ALIGN, UX_REGULAR_MEMORY, memory_size);
/* Check for successful allocation. */
if (stream -> ux_device_class_audio_stream_feedback_thread_stack == UX_NULL)
{
status = UX_MEMORY_INSUFFICIENT;
break;
}
/* Create streaming thread. */
status = _ux_utility_thread_create(&stream -> ux_device_class_audio_stream_feedback_thread , "ux_device_class_audio_stream_feedback_thread",
stream_parameter -> ux_device_class_audio_stream_parameter_feedback_thread_entry,
(ULONG)(ALIGN_TYPE)stream, (VOID *) stream -> ux_device_class_audio_stream_feedback_thread_stack,
memory_size, UX_THREAD_PRIORITY_CLASS,
UX_THREAD_PRIORITY_CLASS, UX_NO_TIME_SLICE, UX_DONT_START);
/* Check for successful allocation. */
if (status != UX_SUCCESS)
{
_ux_utility_memory_free(stream -> ux_device_class_audio_stream_feedback_thread_stack);
stream -> ux_device_class_audio_stream_feedback_thread_stack = UX_NULL;
break;
}
UX_THREAD_EXTENSION_PTR_SET(&(stream -> ux_device_class_audio_stream_feedback_thread), stream)
}
#else
if (stream_parameter -> ux_device_class_audio_stream_parameter_feedback_task_function)
{
/* Save task function for streaming. */
stream -> ux_device_class_audio_stream_feedback_task_function = stream_parameter -> ux_device_class_audio_stream_parameter_feedback_task_function;
}
#endif
#endif
/* Save callbacks. */
_ux_utility_memory_copy(&stream -> ux_device_class_audio_stream_callbacks,
&stream_parameter -> ux_device_class_audio_stream_parameter_callbacks,
sizeof(UX_DEVICE_CLASS_AUDIO_STREAM_CALLBACKS)); /* Use case of memcpy is verified. */
/* Save audio instance. */
stream -> ux_device_class_audio_stream_audio = audio;
stream ++;
stream_parameter ++;
}
/* Check for successful creation. */
if (status == UX_SUCCESS)
{
/* Save the address of the Audio instance inside the Audio container. */
audio_class -> ux_slave_class_instance = (VOID *) audio;
/* Link to class instance. */
audio -> ux_device_class_audio_class = audio_class;
/* Save callbacks. */
_ux_utility_memory_copy(&audio -> ux_device_class_audio_callbacks,
&audio_parameter -> ux_device_class_audio_parameter_callbacks,
sizeof(UX_DEVICE_CLASS_AUDIO_CALLBACKS)); /* Use case of memcpy is verified. */
#if defined(UX_DEVICE_STANDALONE)
/* Link task function. */
audio_class -> ux_slave_class_task_function = _ux_device_class_audio_tasks_run;
#endif
/* Return completion status. */
return(UX_SUCCESS);
}
/* Error trap! */
_ux_system_error_handler(UX_SYSTEM_LEVEL_THREAD, UX_SYSTEM_CONTEXT_CLASS, status);
/* Free allocated resources. */
stream = audio -> ux_device_class_audio_streams;
for (i = 0; i < audio -> ux_device_class_audio_streams_nb; i ++)
{
#if defined(UX_DEVICE_CLASS_AUDIO_FEEDBACK_SUPPORT)
#if UX_DEVICE_ENDPOINT_BUFFER_OWNER == 1
if (stream -> ux_device_class_audio_stream_feedback_buffer)
_ux_utility_memory_free(stream -> ux_device_class_audio_stream_feedback_buffer);
#endif
#if !defined(UX_DEVICE_STANDALONE)
if (stream -> ux_device_class_audio_stream_feedback_thread_stack)
{
_ux_device_thread_delete(&stream -> ux_device_class_audio_stream_feedback_thread);
_ux_utility_memory_free(stream -> ux_device_class_audio_stream_feedback_thread_stack);
}
#endif
#endif
#if !defined(UX_DEVICE_STANDALONE)
if (stream -> ux_device_class_audio_stream_thread_stack)
{
_ux_device_thread_delete(&stream -> ux_device_class_audio_stream_thread);
_ux_utility_memory_free(stream -> ux_device_class_audio_stream_thread_stack);
}
#endif
if (stream -> ux_device_class_audio_stream_buffer)
_ux_utility_memory_free(stream -> ux_device_class_audio_stream_buffer);
stream ++;
}
#if defined(UX_DEVICE_CLASS_AUDIO_INTERRUPT_SUPPORT)
#if UX_DEVICE_ENDPOINT_BUFFER_OWNER == 1
if (audio -> ux_device_class_audio_interrupt_buffer)
_ux_utility_memory_free(audio -> ux_device_class_audio_interrupt_buffer);
#endif
#if !defined(UX_DEVICE_STANDALONE)
if (audio_class -> ux_slave_class_thread_stack)
{
_ux_device_thread_delete(&audio_class -> ux_slave_class_thread);
_ux_utility_memory_free(audio_class -> ux_slave_class_thread_stack);
_ux_device_semaphore_delete(&audio -> ux_device_class_audio_status_semaphore);
_ux_device_mutex_delete(&audio -> ux_device_class_audio_status_mutex);
}
#else
if (audio -> ux_device_class_audio_status_queue)
{
_ux_utility_memory_free(audio -> ux_device_class_audio_status_queue);
}
#endif
#endif
_ux_utility_memory_free(audio);
return(status);
}
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _uxe_device_class_audio_initialize PORTABLE C */
/* 6.3.0 */
/* AUTHOR */
/* */
/* Chaoqiong Xiao, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function checks errors in audio initialization function call. */
/* */
/* INPUT */
/* */
/* command Pointer to audio command */
/* */
/* OUTPUT */
/* */
/* Completion Status */
/* */
/* CALLS */
/* */
/* _ux_device_class_audio_initialize Initialize audio instance */
/* */
/* CALLED BY */
/* */
/* Device Audio Class */
/* */
/**************************************************************************/
UINT _uxe_device_class_audio_initialize(UX_SLAVE_CLASS_COMMAND *command)
{
UX_DEVICE_CLASS_AUDIO_PARAMETER *audio_parameter;
ULONG i;
/* Get the pointer to the application parameters for the audio class. */
audio_parameter = (UX_DEVICE_CLASS_AUDIO_PARAMETER *)command -> ux_slave_class_command_parameter;
/* Sanity checks. */
if (audio_parameter == UX_NULL)
return(UX_INVALID_PARAMETER);
/* There must be at least one stream. */
if (audio_parameter -> ux_device_class_audio_parameter_streams == UX_NULL ||
audio_parameter -> ux_device_class_audio_parameter_streams_nb < 1)
return(UX_INVALID_PARAMETER);
for (i = 0; i < audio_parameter -> ux_device_class_audio_parameter_streams_nb; i ++)
{
if ((audio_parameter -> ux_device_class_audio_parameter_streams[i].ux_device_class_audio_stream_parameter_max_frame_buffer_size == 0) ||
(audio_parameter -> ux_device_class_audio_parameter_streams[i].ux_device_class_audio_stream_parameter_max_frame_buffer_nb == 0))
return(UX_INVALID_PARAMETER);
}
#if defined(UX_DEVICE_CLASS_AUDIO_INTERRUPT_SUPPORT)
/* There must be status setting for event queue. */
if (audio_parameter -> ux_device_class_audio_parameter_status_queue_size == 0 ||
audio_parameter -> ux_device_class_audio_parameter_status_size == 0)
return(UX_INVALID_PARAMETER);
#endif
/* Do initialize. */
return(_ux_device_class_audio_initialize(command));
}
|
