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| author | Frédéric Desbiens <[email protected]> | 2026-03-06 19:27:49 +0100 |
|---|---|---|
| committer | GitHub <[email protected]> | 2026-03-06 19:27:49 +0100 |
| commit | 3726d7906b4808bfec7855fc088e073199df9120 (patch) | |
| tree | 8789bfd03d1d49e1967e80d04aa4ff606fda43eb /ports/risc-v32/gnu/src/tx_thread_interrupt_control.S | |
| parent | 4b6e8100d932a3a67b34c6eb17f84f3bffb9e2ae (diff) | |
| parent | c3259a216026372e3833dd8996a68f77e8595fbd (diff) | |
Merge pull request #510 from eclipse-threadx/devv6.5.0.202601_rel
Merge changes ahead of the v6.5.0.202601 release
Diffstat (limited to 'ports/risc-v32/gnu/src/tx_thread_interrupt_control.S')
| -rw-r--r-- | ports/risc-v32/gnu/src/tx_thread_interrupt_control.S | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/ports/risc-v32/gnu/src/tx_thread_interrupt_control.S b/ports/risc-v32/gnu/src/tx_thread_interrupt_control.S new file mode 100644 index 00000000..aab2955b --- /dev/null +++ b/ports/risc-v32/gnu/src/tx_thread_interrupt_control.S @@ -0,0 +1,88 @@ +/*************************************************************************** + * Copyright (c) 2025 10xEngineers + * + * 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 + **************************************************************************/ + + +/**************************************************************************/ +/**************************************************************************/ +/** */ +/** ThreadX Component */ +/** */ +/** Thread */ +/** */ +/**************************************************************************/ +/**************************************************************************/ + + + .section .text +/**************************************************************************/ +/* */ +/* FUNCTION RELEASE */ +/* */ +/* _tx_thread_interrupt_control RISC-V32/GNU */ +/* 6.4.x */ +/* AUTHOR */ +/* */ +/* Akif Ejaz, 10xEngineers */ +/* */ +/* DESCRIPTION */ +/* */ +/* This function is responsible for changing the interrupt lockout */ +/* posture of the system. */ +/* */ +/* INPUT */ +/* */ +/* new_posture New interrupt lockout posture */ +/* */ +/* OUTPUT */ +/* */ +/* old_posture Old interrupt lockout posture */ +/* */ +/* CALLS */ +/* */ +/* None */ +/* */ +/* CALLED BY */ +/* */ +/* Application Code */ +/* */ +/**************************************************************************/ +/* UINT _tx_thread_interrupt_control(UINT new_posture) +{ */ + .global _tx_thread_interrupt_control +_tx_thread_interrupt_control: + + /* Pickup current interrupt posture. */ + + csrr a1, mstatus // Pickup mstatus + andi a1, a1, 0x08 // Mask out all but MIE + + /* Check for the new posture. */ + + beqz a0, _tx_thread_interrupt_disable // If 0, disable interrupts + + /* Enable interrupts. */ + + csrsi mstatus, 0x08 // Enable interrupts (MIE bit 3) + j _tx_thread_interrupt_control_exit // Return to caller + +_tx_thread_interrupt_disable: + + /* Disable interrupts. */ + + csrci mstatus, 0x08 // Disable interrupts (MIE bit 3) + +_tx_thread_interrupt_control_exit: + + /* Return the old interrupt posture. */ + + mv a0, a1 // Setup return value + ret // Return to caller + +/* } */ |