Merge remote-tracking branch 'remotes/alistair23/tags/pull-riscv-to-apply-20211022...
[qemu.git] / include / hw / isa / i8259_internal.h
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/isa/isa.h"
29 #include "hw/intc/intc.h"
30 #include "hw/intc/i8259.h"
31 #include "qom/object.h"
32
33
34 #define TYPE_PIC_COMMON "pic-common"
35 OBJECT_DECLARE_TYPE(PICCommonState, PICCommonClass, PIC_COMMON)
36
37 struct PICCommonClass {
38 ISADeviceClass parent_class;
39
40 void (*pre_save)(PICCommonState *s);
41 void (*post_load)(PICCommonState *s);
42 };
43
44 struct PICCommonState {
45 ISADevice parent_obj;
46
47 uint8_t last_irr; /* edge detection */
48 uint8_t irr; /* interrupt request register */
49 uint8_t imr; /* interrupt mask register */
50 uint8_t isr; /* interrupt service register */
51 uint8_t priority_add; /* highest irq priority */
52 uint8_t irq_base;
53 uint8_t read_reg_select;
54 uint8_t poll;
55 uint8_t special_mask;
56 uint8_t init_state;
57 uint8_t auto_eoi;
58 uint8_t rotate_on_auto_eoi;
59 uint8_t special_fully_nested_mode;
60 uint8_t init4; /* true if 4 byte init */
61 uint8_t single_mode; /* true if slave pic is not initialized */
62 uint8_t elcr; /* PIIX edge/trigger selection*/
63 uint8_t elcr_mask;
64 qemu_irq int_out[1];
65 uint32_t master; /* reflects /SP input pin */
66 uint32_t iobase;
67 uint32_t elcr_addr;
68 MemoryRegion base_io;
69 MemoryRegion elcr_io;
70 };
71
72 void pic_reset_common(PICCommonState *s);
73 ISADevice *i8259_init_chip(const char *name, ISABus *bus, bool master);
74 void pic_stat_update_irq(int irq, int level);
75 bool pic_get_statistics(InterruptStatsProvider *obj,
76 uint64_t **irq_counts, unsigned int *nb_irqs);
77 void pic_print_info(InterruptStatsProvider *obj, Monitor *mon);
78
79 #endif /* QEMU_I8259_INTERNAL_H */