| 1 | /* |
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| 2 | * hal_irqmask.h - Generic Interrupt Masking API definition |
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| 3 | * |
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| 4 | * Authors Ghassan Almaless (2008,2009,2010,2011,2012) |
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| 5 | * Alain Greiner (2016) |
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| 6 | * |
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| 7 | * Copyright (c) UPMC Sorbonne Universites |
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| 8 | * |
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| 9 | * This file is part of ALMOS-MKH. |
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| 10 | * |
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| 11 | * ALMOS-MKH is free software; you can redistribute it and/or modify it |
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| 12 | * under the terms of the GNU General Public License as published by |
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| 13 | * the Free Software Foundation; version 2.0 of the License. |
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| 14 | * |
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| 15 | * ALMOS-MKH is distributed in the hope that it will be useful, but |
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| 16 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 18 | * General Public License for more details. |
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| 19 | * |
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| 20 | * You should have received a copy of the GNU General Public License |
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| 21 | * along with ALMOS-MKH; if not, write to the Free Software Foundation, |
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| 22 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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| 23 | */ |
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| 24 | |
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| 25 | #ifndef _HAL_IRQMASK_H_ |
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| 26 | #define _HAL_IRQMASK_H_ |
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| 27 | |
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| 28 | #include <hal_types.h> |
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| 29 | |
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| 30 | |
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| 31 | ////////////////////////////////////////////////////////////////////////////////////////// |
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| 32 | // Generic IRQ Masking API (implementation in hal_irqmask.c) |
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| 33 | // |
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| 34 | // Interrupt Enabling / disabling for a given core depends on the hardware architecture. |
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| 35 | // ALMOS-MKH uses the following API. |
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| 36 | ////////////////////////////////////////////////////////////////////////////////////////// |
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| 37 | |
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| 38 | /***************************************************************************************** |
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| 39 | * This function disables all IRQs, and saves the CPU SR state if required. |
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| 40 | * TODO : Warning this function discards the CU3 access bit |
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| 41 | ***************************************************************************************** |
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| 42 | * @ old : address of buffer to save the SR (no save if NULL). |
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| 43 | ****************************************************************************************/ |
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| 44 | extern inline void hal_disable_irq( reg_t * old ); |
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| 45 | |
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| 46 | /***************************************************************************************** |
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| 47 | * This function enables all IRQs, and saves the CPU SR state if required. |
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| 48 | ***************************************************************************************** |
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| 49 | * @ old : address of buffer to save the SR (no save if NULL). |
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| 50 | ****************************************************************************************/ |
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| 51 | extern inline void hal_enable_irq( reg_t * old ); |
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| 52 | |
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| 53 | /***************************************************************************************** |
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| 54 | * This function restores a previously saved SR state. |
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| 55 | ***************************************************************************************** |
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| 56 | * @ old : value to be written in CPU SR register |
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| 57 | ****************************************************************************************/ |
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| 58 | extern inline void hal_restore_irq( reg_t old ); |
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| 59 | |
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| 60 | |
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| 61 | #endif /* _HAL_IRQ_MASK_H_ */ |
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