| 1 | /* |
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| 2 | * soclib_pic.c - soclib PIC driver definition. |
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| 3 | * |
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| 4 | * Author Alain Greiner (2016) |
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| 5 | * |
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| 6 | * Copyright (c) UPMC Sorbonne Universites |
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| 7 | * |
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| 8 | * This file is part of ALMOS-MKH. |
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| 9 | * |
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| 10 | * ALMOS-MKH is free software; you can redistribute it and/or modify it |
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| 11 | * under the terms of the GNU General Public License as published by |
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| 12 | * the Free Software Foundation; version 2.0 of the License. |
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| 13 | * |
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| 14 | * ALMOS-MKH is distributed in the hope that it will be useful, but |
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| 15 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 17 | * General Public License for more details. |
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| 18 | * |
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| 19 | * You should have received a copy of the GNU General Public License |
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| 20 | * along with ALMOS-kernel; if not, write to the Free Software Foundation, |
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| 21 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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| 22 | */ |
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| 23 | |
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| 24 | #ifndef _SOCLIB_IOPIC_H_ |
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| 25 | #define _SOCLIB_IOPIC_H_ |
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| 26 | |
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| 27 | #include <hal_types.h> |
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| 28 | |
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| 29 | /****************************************************************************************** |
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| 30 | * PIC register offsets (per input IRQ) |
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| 31 | *****************************************************************************************/ |
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| 32 | |
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| 33 | #define IOPIC_ADDRESS 0 |
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| 34 | #define IOPIC_EXTEND 1 |
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| 35 | #define IOPIC_STATUS 2 |
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| 36 | #define IOPIC_MASK 3 |
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| 37 | #define IOPIC_SPAN 4 |
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| 38 | |
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| 39 | /****************************************************************************************** |
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| 40 | * This blocking function desactivates all input IRQs in PIC controler. |
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| 41 | * It must be called by a local thread. |
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| 42 | ****************************************************************************************** |
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| 43 | * @ chdev : pointer on PIC chdev descriptor. |
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| 44 | *****************************************************************************************/ |
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| 45 | void soclib_pic_init( chdev_t * chdev ); |
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| 46 | |
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| 47 | /****************************************************************************************** |
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| 48 | * This blocking function returns the status for a given input IRQ in the remote |
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| 49 | * PIC controler. It can be called by any thread running on any cluster. |
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| 50 | ****************************************************************************************** |
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| 51 | * @ dev_xp : extended pointer on the PIC device descriptor. |
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| 52 | * @ irq_id : input IRQ index. |
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| 53 | * @ status : pointer on local buffer for returned status. |
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| 54 | *****************************************************************************************/ |
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| 55 | void soclib_pic_get_status( xptr_t dev_xp, |
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| 56 | uint32_t irq_id, |
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| 57 | uint32_t * status ); |
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| 58 | |
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| 59 | /****************************************************************************************** |
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| 60 | * This blocking function unmask an input IRQ in a remote PIC controler, and bind it |
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| 61 | * with a WTI mailbox, by registering the WTI mailbox extended pointer. |
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| 62 | * It can be called by any thread running on any cluster. |
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| 63 | ****************************************************************************************** |
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| 64 | * @ dev_xp : extended pointer on the PIC device descriptor. |
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| 65 | * @ irq_id : input IRQ index. |
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| 66 | * @ xp_wti : extended pointer on the WTI mailbox. |
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| 67 | *****************************************************************************************/ |
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| 68 | void soclib_pic_bind_irq( xptr_t dev_xp, |
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| 69 | uint32_t irq_id, |
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| 70 | xptr_t wti_xp ); |
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| 71 | |
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| 72 | /****************************************************************************************** |
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| 73 | * This blocking function mask an input IRQ in a remote PIC controler. |
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| 74 | * It can be called by any thread running on any cluster. |
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| 75 | ****************************************************************************************** |
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| 76 | * @ dev_xp : extended pointer on the PIC device descriptor. |
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| 77 | * @ irq_id : input IRQ index. |
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| 78 | *****************************************************************************************/ |
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| 79 | void soclib_pic_unbind_irq( xptr_t dev_xp, |
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| 80 | uint32_t irq_id ); |
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| 81 | |
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| 82 | |
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| 83 | #endif /* _SOCLIB_IOPIC_H_ */ |
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