10d09e41aSPaolo Bonzini /* 20d09e41aSPaolo Bonzini * QEMU 8259 - internal interfaces 30d09e41aSPaolo Bonzini * 40d09e41aSPaolo Bonzini * Copyright (c) 2011 Jan Kiszka, Siemens AG 50d09e41aSPaolo Bonzini * 60d09e41aSPaolo Bonzini * Permission is hereby granted, free of charge, to any person obtaining a copy 70d09e41aSPaolo Bonzini * of this software and associated documentation files (the "Software"), to deal 80d09e41aSPaolo Bonzini * in the Software without restriction, including without limitation the rights 90d09e41aSPaolo Bonzini * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 100d09e41aSPaolo Bonzini * copies of the Software, and to permit persons to whom the Software is 110d09e41aSPaolo Bonzini * furnished to do so, subject to the following conditions: 120d09e41aSPaolo Bonzini * 130d09e41aSPaolo Bonzini * The above copyright notice and this permission notice shall be included in 140d09e41aSPaolo Bonzini * all copies or substantial portions of the Software. 150d09e41aSPaolo Bonzini * 160d09e41aSPaolo Bonzini * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 170d09e41aSPaolo Bonzini * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 180d09e41aSPaolo Bonzini * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 190d09e41aSPaolo Bonzini * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 200d09e41aSPaolo Bonzini * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 210d09e41aSPaolo Bonzini * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 220d09e41aSPaolo Bonzini * THE SOFTWARE. 230d09e41aSPaolo Bonzini */ 240d09e41aSPaolo Bonzini 250d09e41aSPaolo Bonzini #ifndef QEMU_I8259_INTERNAL_H 260d09e41aSPaolo Bonzini #define QEMU_I8259_INTERNAL_H 270d09e41aSPaolo Bonzini 280d09e41aSPaolo Bonzini #include "hw/isa/isa.h" 291b23190aSPeter Xu #include "hw/intc/intc.h" 30852c27e2SPaolo Bonzini #include "hw/intc/i8259.h" 31db1015e9SEduardo Habkost #include "qom/object.h" 320d09e41aSPaolo Bonzini 330d09e41aSPaolo Bonzini 340d09e41aSPaolo Bonzini #define TYPE_PIC_COMMON "pic-common" 35a489d195SEduardo Habkost OBJECT_DECLARE_TYPE(PICCommonState, PICCommonClass, PIC_COMMON) 360d09e41aSPaolo Bonzini 37db1015e9SEduardo Habkost struct PICCommonClass { 3897cfb5e4SPhilippe Mathieu-Daudé DeviceClass parent_class; 39d2628b7dSAndreas Färber 400d09e41aSPaolo Bonzini void (*pre_save)(PICCommonState *s); 410d09e41aSPaolo Bonzini void (*post_load)(PICCommonState *s); 42db1015e9SEduardo Habkost }; 430d09e41aSPaolo Bonzini 440d09e41aSPaolo Bonzini struct PICCommonState { 4529bb5317SAndreas Färber ISADevice parent_obj; 4629bb5317SAndreas Färber 470d09e41aSPaolo Bonzini uint8_t last_irr; /* edge detection */ 480d09e41aSPaolo Bonzini uint8_t irr; /* interrupt request register */ 490d09e41aSPaolo Bonzini uint8_t imr; /* interrupt mask register */ 500d09e41aSPaolo Bonzini uint8_t isr; /* interrupt service register */ 510d09e41aSPaolo Bonzini uint8_t priority_add; /* highest irq priority */ 520d09e41aSPaolo Bonzini uint8_t irq_base; 530d09e41aSPaolo Bonzini uint8_t read_reg_select; 540d09e41aSPaolo Bonzini uint8_t poll; 550d09e41aSPaolo Bonzini uint8_t special_mask; 560d09e41aSPaolo Bonzini uint8_t init_state; 570d09e41aSPaolo Bonzini uint8_t auto_eoi; 580d09e41aSPaolo Bonzini uint8_t rotate_on_auto_eoi; 590d09e41aSPaolo Bonzini uint8_t special_fully_nested_mode; 600d09e41aSPaolo Bonzini uint8_t init4; /* true if 4 byte init */ 610d09e41aSPaolo Bonzini uint8_t single_mode; /* true if slave pic is not initialized */ 620d09e41aSPaolo Bonzini uint8_t elcr; /* PIIX edge/trigger selection*/ 630d09e41aSPaolo Bonzini uint8_t elcr_mask; 64ecb0e98bSDavid Woodhouse uint8_t ltim; /* Edge/Level Bank Select (pre-PIIX, chip-wide) */ 650d09e41aSPaolo Bonzini qemu_irq int_out[1]; 660d09e41aSPaolo Bonzini uint32_t master; /* reflects /SP input pin */ 670d09e41aSPaolo Bonzini uint32_t iobase; 680d09e41aSPaolo Bonzini uint32_t elcr_addr; 690d09e41aSPaolo Bonzini MemoryRegion base_io; 700d09e41aSPaolo Bonzini MemoryRegion elcr_io; 710d09e41aSPaolo Bonzini }; 720d09e41aSPaolo Bonzini 730d09e41aSPaolo Bonzini void pic_reset_common(PICCommonState *s); 740d09e41aSPaolo Bonzini ISADevice *i8259_init_chip(const char *name, ISABus *bus, bool master); 751b23190aSPeter Xu void pic_stat_update_irq(int irq, int level); 760d09e41aSPaolo Bonzini 77175de524SMarkus Armbruster #endif /* QEMU_I8259_INTERNAL_H */ 78