6.1 minor release
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Scott Larson
367
ports/cortex_a35/gnu/inc/tx_port.h
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367
ports/cortex_a35/gnu/inc/tx_port.h
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/**************************************************************************/
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/* */
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/* Copyright (c) Microsoft Corporation. All rights reserved. */
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/* */
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/* This software is licensed under the Microsoft Software License */
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/* Terms for Microsoft Azure RTOS. Full text of the license can be */
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/* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */
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/* and in the root directory of this software. */
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/* */
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/**************************************************************************/
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/**************************************************************************/
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/**************************************************************************/
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/** */
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/** ThreadX Component */
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/** */
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/** Port Specific */
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/** */
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/**************************************************************************/
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/**************************************************************************/
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/**************************************************************************/
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/* */
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/* PORT SPECIFIC C INFORMATION RELEASE */
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/* */
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/* tx_port.h Cortex-A35/GNU */
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/* 6.1 */
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/* */
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/* AUTHOR */
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/* */
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/* William E. Lamie, Microsoft Corporation */
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/* */
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/* DESCRIPTION */
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/* */
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/* This file contains data type definitions that make the ThreadX */
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/* real-time kernel function identically on a variety of different */
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/* processor architectures. For example, the size or number of bits */
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/* in an "int" data type vary between microprocessor architectures and */
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/* even C compilers for the same microprocessor. ThreadX does not */
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/* directly use native C data types. Instead, ThreadX creates its */
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/* own special types that can be mapped to actual data types by this */
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/* file to guarantee consistency in the interface and functionality. */
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/* */
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/* RELEASE HISTORY */
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/* */
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/* DATE NAME DESCRIPTION */
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/* */
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/* 09-30-2020 William E. Lamie Initial Version 6.1 */
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/* */
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/**************************************************************************/
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#ifndef TX_PORT_H
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#define TX_PORT_H
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/* Determine if the optional ThreadX user define file should be used. */
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#ifdef TX_INCLUDE_USER_DEFINE_FILE
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/* Yes, include the user defines in tx_user.h. The defines in this file may
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alternately be defined on the command line. */
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#include "tx_user.h"
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#endif
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/* Define compiler library include files. */
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#include <stdlib.h>
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#include <string.h>
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/* Define ThreadX basic types for this port. */
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#define VOID void
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typedef char CHAR;
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typedef unsigned char UCHAR;
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typedef int INT;
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typedef unsigned int UINT;
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typedef int LONG;
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typedef unsigned int ULONG;
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typedef short SHORT;
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typedef unsigned short USHORT;
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/* Override the alignment type to use 64-bit alignment and storage for pointers. */
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#define ALIGN_TYPE_DEFINED
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typedef unsigned long long ALIGN_TYPE;
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/* Override the free block marker for byte pools to be a 64-bit constant. */
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#define TX_BYTE_BLOCK_FREE ((ALIGN_TYPE) 0xFFFFEEEEFFFFEEEE)
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/* Define the priority levels for ThreadX. Legal values range
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from 32 to 1024 and MUST be evenly divisible by 32. */
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#ifndef TX_MAX_PRIORITIES
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#define TX_MAX_PRIORITIES 32
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#endif
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/* Define the minimum stack for a ThreadX thread on this processor. If the size supplied during
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thread creation is less than this value, the thread create call will return an error. */
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#ifndef TX_MINIMUM_STACK
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#define TX_MINIMUM_STACK 200 /* Minimum stack size for this port */
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#endif
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/* Define the system timer thread's default stack size and priority. These are only applicable
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if TX_TIMER_PROCESS_IN_ISR is not defined. */
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#ifndef TX_TIMER_THREAD_STACK_SIZE
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#define TX_TIMER_THREAD_STACK_SIZE 4096 /* Default timer thread stack size */
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#endif
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#ifndef TX_TIMER_THREAD_PRIORITY
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#define TX_TIMER_THREAD_PRIORITY 0 /* Default timer thread priority */
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#endif
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/* Define various constants for the ThreadX ARM port. */
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#define TX_INT_DISABLE 0xC0 /* Disable IRQ & FIQ interrupts */
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#define TX_INT_ENABLE 0x00 /* Enable IRQ & FIQ interrupts */
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/* Define the clock source for trace event entry time stamp. The following two item are port specific.
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For example, if the time source is at the address 0x0a800024 and is 16-bits in size, the clock
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source constants would be:
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#define TX_TRACE_TIME_SOURCE *((ULONG *) 0x0a800024)
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#define TX_TRACE_TIME_MASK 0x0000FFFFUL
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*/
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#ifndef TX_TRACE_TIME_SOURCE
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#define TX_TRACE_TIME_SOURCE ++_tx_trace_simulated_time
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#endif
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#ifndef TX_TRACE_TIME_MASK
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#define TX_TRACE_TIME_MASK 0xFFFFFFFFUL
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#endif
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/* Define the port specific options for the _tx_build_options variable. This variable indicates
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how the ThreadX library was built. */
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#ifdef TX_ENABLE_FIQ_SUPPORT
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#define TX_FIQ_ENABLED 1
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#else
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#define TX_FIQ_ENABLED 0
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#endif
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#ifdef TX_ENABLE_IRQ_NESTING
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#define TX_IRQ_NESTING_ENABLED 2
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#else
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#define TX_IRQ_NESTING_ENABLED 0
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#endif
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#ifdef TX_ENABLE_FIQ_NESTING
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#define TX_FIQ_NESTING_ENABLED 4
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#else
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#define TX_FIQ_NESTING_ENABLED 0
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#endif
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#define TX_PORT_SPECIFIC_BUILD_OPTIONS TX_FIQ_ENABLED | TX_IRQ_NESTING_ENABLED | TX_FIQ_NESTING_ENABLED
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/* Define the in-line initialization constant so that modules with in-line
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initialization capabilities can prevent their initialization from being
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a function call. */
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#define TX_INLINE_INITIALIZATION
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/* Determine whether or not stack checking is enabled. By default, ThreadX stack checking is
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disabled. When the following is defined, ThreadX thread stack checking is enabled. If stack
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checking is enabled (TX_ENABLE_STACK_CHECKING is defined), the TX_DISABLE_STACK_FILLING
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define is negated, thereby forcing the stack fill which is necessary for the stack checking
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logic. */
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#ifdef TX_ENABLE_STACK_CHECKING
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#undef TX_DISABLE_STACK_FILLING
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#endif
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/* Define the TX_THREAD control block extensions for this port. The main reason
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for the multiple macros is so that backward compatibility can be maintained with
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existing ThreadX kernel awareness modules. */
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#define TX_THREAD_EXTENSION_0
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#define TX_THREAD_EXTENSION_1
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#define TX_THREAD_EXTENSION_2 ULONG tx_thread_fp_enable;
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#define TX_THREAD_EXTENSION_3
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/* Define the port extensions of the remaining ThreadX objects. */
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#define TX_BLOCK_POOL_EXTENSION
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#define TX_BYTE_POOL_EXTENSION
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#define TX_EVENT_FLAGS_GROUP_EXTENSION
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#define TX_MUTEX_EXTENSION
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#define TX_QUEUE_EXTENSION
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#define TX_SEMAPHORE_EXTENSION
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#define TX_TIMER_EXTENSION
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/* Define the user extension field of the thread control block. Nothing
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additional is needed for this port so it is defined as white space. */
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#ifndef TX_THREAD_USER_EXTENSION
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#define TX_THREAD_USER_EXTENSION
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#endif
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/* Define the macros for processing extensions in tx_thread_create, tx_thread_delete,
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tx_thread_shell_entry, and tx_thread_terminate. */
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#define TX_THREAD_CREATE_EXTENSION(thread_ptr)
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#define TX_THREAD_DELETE_EXTENSION(thread_ptr)
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#define TX_THREAD_COMPLETED_EXTENSION(thread_ptr)
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#define TX_THREAD_TERMINATED_EXTENSION(thread_ptr)
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/* Define the ThreadX object creation extensions for the remaining objects. */
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#define TX_BLOCK_POOL_CREATE_EXTENSION(pool_ptr)
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#define TX_BYTE_POOL_CREATE_EXTENSION(pool_ptr)
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#define TX_EVENT_FLAGS_GROUP_CREATE_EXTENSION(group_ptr)
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#define TX_MUTEX_CREATE_EXTENSION(mutex_ptr)
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#define TX_QUEUE_CREATE_EXTENSION(queue_ptr)
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#define TX_SEMAPHORE_CREATE_EXTENSION(semaphore_ptr)
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#define TX_TIMER_CREATE_EXTENSION(timer_ptr)
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/* Define the ThreadX object deletion extensions for the remaining objects. */
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#define TX_BLOCK_POOL_DELETE_EXTENSION(pool_ptr)
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#define TX_BYTE_POOL_DELETE_EXTENSION(pool_ptr)
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#define TX_EVENT_FLAGS_GROUP_DELETE_EXTENSION(group_ptr)
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#define TX_MUTEX_DELETE_EXTENSION(mutex_ptr)
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#define TX_QUEUE_DELETE_EXTENSION(queue_ptr)
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#define TX_SEMAPHORE_DELETE_EXTENSION(semaphore_ptr)
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#define TX_TIMER_DELETE_EXTENSION(timer_ptr)
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/* Determine if the ARM architecture has the CLZ instruction. This is available on
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architectures v5 and above. If available, redefine the macro for calculating the
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lowest bit set. */
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#ifndef TX_DISABLE_INLINE
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#define TX_LOWEST_SET_BIT_CALCULATE(m, b) b = (UINT) __builtin_ctz((unsigned int) m);
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#endif
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/* Define the internal timer extension to also hold the thread pointer such that _tx_thread_timeout
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can figure out what thread timeout to process. */
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#define TX_TIMER_INTERNAL_EXTENSION VOID *tx_timer_internal_thread_timeout_ptr;
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/* Define the thread timeout setup logic in _tx_thread_create. */
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#define TX_THREAD_CREATE_TIMEOUT_SETUP(t) (t) -> tx_thread_timer.tx_timer_internal_timeout_function = &(_tx_thread_timeout); \
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(t) -> tx_thread_timer.tx_timer_internal_timeout_param = 0; \
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(t) -> tx_thread_timer.tx_timer_internal_thread_timeout_ptr = (VOID *) (t);
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/* Define the thread timeout pointer setup in _tx_thread_timeout. */
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#define TX_THREAD_TIMEOUT_POINTER_SETUP(t) (t) = (TX_THREAD *) _tx_timer_expired_timer_ptr -> tx_timer_internal_thread_timeout_ptr;
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/* Define ThreadX interrupt lockout and restore macros for protection on
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access of critical kernel information. The restore interrupt macro must
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restore the interrupt posture of the running thread prior to the value
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present prior to the disable macro. In most cases, the save area macro
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is used to define a local function save area for the disable and restore
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macros. */
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#ifndef TX_DISABLE_INLINE
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/* Define macros, with in-line assembly for performance. */
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__attribute__( ( always_inline ) ) static inline unsigned int __disable_interrupts(void)
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{
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unsigned long long daif_value;
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__asm__ volatile (" MRS %0, DAIF ": "=r" (daif_value) );
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__asm__ volatile (" MSR DAIFSet, 0x3" : : : "memory" );
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return((unsigned int) daif_value);
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}
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__attribute__( ( always_inline ) ) static inline void __restore_interrupts(unsigned int daif_value)
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{
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unsigned long long temp;
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temp = (unsigned long long) daif_value;
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__asm__ volatile (" MSR DAIF,%0": : "r" (temp): "memory" );
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}
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#define TX_INTERRUPT_SAVE_AREA unsigned int interrupt_save;
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#define TX_DISABLE interrupt_save = __disable_interrupts();
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#define TX_RESTORE __restore_interrupts(interrupt_save);
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#else
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unsigned int _tx_thread_interrupt_disable(void);
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unsigned int _tx_thread_interrupt_restore(UINT old_posture);
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#define TX_INTERRUPT_SAVE_AREA unsigned int interrupt_save;
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#define TX_DISABLE interrupt_save = _tx_thread_interrupt_disable();
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#define TX_RESTORE _tx_thread_interrupt_restore(interrupt_save);
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#endif
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/* Define FP extension for the Cortex-A5x. Each is assumed to be called in the context of the executing
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thread. */
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#ifndef TX_SOURCE_CODE
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#define tx_thread_fp_enable _tx_thread_fp_enable
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#define tx_thread_fp_disable _tx_thread_fp_disable
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#endif
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VOID tx_thread_fp_enable(VOID);
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VOID tx_thread_fp_disable(VOID);
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/* Define the interrupt lockout macros for each ThreadX object. */
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#define TX_BLOCK_POOL_DISABLE TX_DISABLE
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#define TX_BYTE_POOL_DISABLE TX_DISABLE
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#define TX_EVENT_FLAGS_GROUP_DISABLE TX_DISABLE
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#define TX_MUTEX_DISABLE TX_DISABLE
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#define TX_QUEUE_DISABLE TX_DISABLE
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#define TX_SEMAPHORE_DISABLE TX_DISABLE
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/* Define the version ID of ThreadX. This may be utilized by the application. */
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#ifdef TX_THREAD_INIT
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CHAR _tx_version_id[] =
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"Copyright (c) Microsoft Corporation. All rights reserved. * ThreadX Cortex-A35/GNU Version 6.1 *";
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#else
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extern CHAR _tx_version_id[];
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#endif
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#endif
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