1;/**************************************************************************/
2;/*                                                                        */
3;/*       Copyright (c) Microsoft Corporation. All rights reserved.        */
4;/*                                                                        */
5;/*       This software is licensed under the Microsoft Software License   */
6;/*       Terms for Microsoft Azure RTOS. Full text of the license can be  */
7;/*       found in the LICENSE file at https://aka.ms/AzureRTOS_EULA       */
8;/*       and in the root directory of this software.                      */
9;/*                                                                        */
10;/**************************************************************************/
11;
12;
13;/**************************************************************************/
14;/**************************************************************************/
15;/**                                                                       */
16;/** ThreadX Component                                                     */
17;/**                                                                       */
18;/**   Thread                                                              */
19;/**                                                                       */
20;/**************************************************************************/
21;/**************************************************************************/
22;
23;#define TX_SOURCE_CODE
24;
25;
26;/* Include necessary system files.  */
27;
28;#include "tx_api.h"
29;#include "tx_thread.h"
30;
31;
32    IF :DEF:TX_ENABLE_FIQ_SUPPORT
33DISABLE_INTS    EQU         0xC0                ; IRQ & FIQ interrupts disabled
34    ELSE
35DISABLE_INTS    EQU         0x80                ; IRQ interrupts disabled
36    ENDIF
37;
38;
39        AREA ||.text||, CODE, READONLY
40;/**************************************************************************/
41;/*                                                                        */
42;/*  FUNCTION                                               RELEASE        */
43;/*                                                                        */
44;/*    _tx_thread_interrupt_disable                         ARM9/AC5       */
45;/*                                                           6.1          */
46;/*  AUTHOR                                                                */
47;/*                                                                        */
48;/*    William E. Lamie, Microsoft Corporation                             */
49;/*                                                                        */
50;/*  DESCRIPTION                                                           */
51;/*                                                                        */
52;/*    This function is responsible for disabling interrupts               */
53;/*                                                                        */
54;/*  INPUT                                                                 */
55;/*                                                                        */
56;/*    None                                                                */
57;/*                                                                        */
58;/*  OUTPUT                                                                */
59;/*                                                                        */
60;/*    old_posture                           Old interrupt lockout posture */
61;/*                                                                        */
62;/*  CALLS                                                                 */
63;/*                                                                        */
64;/*    None                                                                */
65;/*                                                                        */
66;/*  CALLED BY                                                             */
67;/*                                                                        */
68;/*    Application Code                                                    */
69;/*                                                                        */
70;/*  RELEASE HISTORY                                                       */
71;/*                                                                        */
72;/*    DATE              NAME                      DESCRIPTION             */
73;/*                                                                        */
74;/*  09-30-2020     William E. Lamie         Initial Version 6.1           */
75;/*                                                                        */
76;/**************************************************************************/
77;UINT   _tx_thread_interrupt_disable(void)
78;{
79    EXPORT _tx_thread_interrupt_disable
80_tx_thread_interrupt_disable
81;
82;    /* Pickup current interrupt lockout posture.  */
83;
84    MRS     r0, CPSR                            ; Pickup current CPSR
85;
86;    /* Mask interrupts.  */
87;
88    ORR     r1, r0, #DISABLE_INTS               ; Mask interrupts
89    MSR     CPSR_cxsf, r1                       ; Setup new CPSR
90    IF  {INTER} = {TRUE}
91    BX      lr                                  ; Return to caller
92    ELSE
93    MOV     pc, lr                              ; Return to caller
94    ENDIF
95;}
96;
97    END
98
99