| /* ioapic.h - public IOAPIC APIs */ |
| |
| /* |
| * Copyright (c) 2012-2015 Wind River Systems, Inc. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * |
| * 1) Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * |
| * 2) Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation |
| * and/or other materials provided with the distribution. |
| * |
| * 3) Neither the name of Wind River Systems nor the names of its contributors |
| * may be used to endorse or promote products derived from this software without |
| * specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
| * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| * POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef __INCioapich |
| #define __INCioapich |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /* |
| * Redirection table entry bits: lower 32 bit |
| * Used as flags argument in ioapic_irq_set |
| */ |
| |
| #define IOAPIC_INT_MASK 0x00010000 |
| #define IOAPIC_TRIGGER_MASK 0x00008000 |
| #define IOAPIC_LEVEL 0x00008000 |
| #define IOAPIC_EDGE 0x00000000 |
| #define IOAPIC_REMOTE 0x00004000 |
| #define IOAPIC_LOW 0x00002000 |
| #define IOAPIC_HIGH 0x00000000 |
| #define IOAPIC_LOGICAL 0x00000800 |
| #define IOAPIC_PHYSICAL 0x00000000 |
| #define IOAPIC_FIXED 0x00000000 |
| #define IOAPIC_LOWEST 0x00000100 |
| #define IOAPIC_SMI 0x00000200 |
| #define IOAPIC_NMI 0x00000400 |
| #define IOAPIC_INIT 0x00000500 |
| #define IOAPIC_EXTINT 0x00000700 |
| |
| #ifdef _ASMLANGUAGE |
| GTEXT(_ioapic_eoi) |
| |
| .macro ioapic_mkstub device isr |
| GTEXT(_\()\device\()_\()\isr\()_stub) |
| |
| SECTION_FUNC(TEXT, _\()\device\()_\()\isr\()_stub) |
| call _IntEnt /* Inform kernel interrupt has begun */ |
| pushl $0 /* Push dummy parameter */ |
| call \isr /* Call actual interrupt handler */ |
| call _ioapic_eoi /* Inform ioapic interrupt is done */ |
| addl $4, %esp /* Clean-up stack from push above */ |
| jmp _IntExit /* Inform kernel interrupt is done */ |
| .endm |
| #else /* _ASMLANGUAGE */ |
| int _ioapic_init(struct device *unused); |
| void _ioapic_eoi(unsigned int irq); |
| void *_ioapic_eoi_get(unsigned int irq, char *argRequired, void **arg); |
| void _ioapic_irq_enable(unsigned int irq); |
| void _ioapic_irq_disable(unsigned int irq); |
| void _ioapic_int_vec_set(unsigned int irq, unsigned int vector); |
| void _ioapic_irq_set(unsigned int irq, unsigned int vector, uint32_t flags); |
| #endif /* _ASMLANGUAGE */ |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* __INCioapich */ |
