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Annotation of qemu/hw/i8259_internal.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * QEMU 8259 - internal interfaces
                      3:  *
                      4:  * Copyright (c) 2011 Jan Kiszka, Siemens AG
                      5:  *
                      6:  * Permission is hereby granted, free of charge, to any person obtaining a copy
                      7:  * of this software and associated documentation files (the "Software"), to deal
                      8:  * in the Software without restriction, including without limitation the rights
                      9:  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
                     10:  * copies of the Software, and to permit persons to whom the Software is
                     11:  * furnished to do so, subject to the following conditions:
                     12:  *
                     13:  * The above copyright notice and this permission notice shall be included in
                     14:  * all copies or substantial portions of the Software.
                     15:  *
                     16:  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
                     17:  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
                     18:  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
                     19:  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
                     20:  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
                     21:  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
                     22:  * THE SOFTWARE.
                     23:  */
                     24: 
                     25: #ifndef QEMU_I8259_INTERNAL_H
                     26: #define QEMU_I8259_INTERNAL_H
                     27: 
                     28: #include "hw.h"
                     29: #include "pc.h"
                     30: #include "isa.h"
                     31: 
                     32: typedef struct PICCommonState PICCommonState;
                     33: 
                     34: #define TYPE_PIC_COMMON "pic-common"
                     35: #define PIC_COMMON(obj) \
                     36:      OBJECT_CHECK(PICCommon, (obj), TYPE_PIC_COMMON)
                     37: #define PIC_COMMON_CLASS(klass) \
                     38:      OBJECT_CLASS_CHECK(PICCommonClass, (klass), TYPE_PIC_COMMON)
                     39: #define PIC_COMMON_GET_CLASS(obj) \
                     40:      OBJECT_GET_CLASS(PICCommonClass, (obj), TYPE_PIC_COMMON)
                     41: 
                     42: typedef struct PICCommonClass
                     43: {
                     44:     ISADeviceClass parent_class;
                     45:     void (*init)(PICCommonState *s);
                     46:     void (*pre_save)(PICCommonState *s);
                     47:     void (*post_load)(PICCommonState *s);
                     48: } PICCommonClass;
                     49: 
                     50: struct PICCommonState {
                     51:     ISADevice dev;
                     52:     uint8_t last_irr; /* edge detection */
                     53:     uint8_t irr; /* interrupt request register */
                     54:     uint8_t imr; /* interrupt mask register */
                     55:     uint8_t isr; /* interrupt service register */
                     56:     uint8_t priority_add; /* highest irq priority */
                     57:     uint8_t irq_base;
                     58:     uint8_t read_reg_select;
                     59:     uint8_t poll;
                     60:     uint8_t special_mask;
                     61:     uint8_t init_state;
                     62:     uint8_t auto_eoi;
                     63:     uint8_t rotate_on_auto_eoi;
                     64:     uint8_t special_fully_nested_mode;
                     65:     uint8_t init4; /* true if 4 byte init */
                     66:     uint8_t single_mode; /* true if slave pic is not initialized */
                     67:     uint8_t elcr; /* PIIX edge/trigger selection*/
                     68:     uint8_t elcr_mask;
                     69:     qemu_irq int_out[1];
                     70:     uint32_t master; /* reflects /SP input pin */
                     71:     uint32_t iobase;
                     72:     uint32_t elcr_addr;
                     73:     MemoryRegion base_io;
                     74:     MemoryRegion elcr_io;
                     75: };
                     76: 
                     77: void pic_reset_common(PICCommonState *s);
                     78: 
                     79: ISADevice *i8259_init_chip(const char *name, ISABus *bus, bool master);
                     80: 
                     81: 
                     82: #endif /* !QEMU_I8259_INTERNAL_H */

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