1 /* 2 * 3 * Copyright (c) 2011-2018 Laurent Vivier 4 * 5 * This work is licensed under the terms of the GNU GPL, version 2 or later. 6 * See the COPYING file in the top-level directory. 7 */ 8 9 #ifndef HW_MISC_MAC_VIA_H 10 #define HW_MISC_MAC_VIA_H 11 12 #include "exec/memory.h" 13 #include "hw/sysbus.h" 14 #include "hw/misc/mos6522.h" 15 #include "qom/object.h" 16 17 18 /* VIA 1 */ 19 #define VIA1_IRQ_ONE_SECOND_BIT 0 20 #define VIA1_IRQ_60HZ_BIT 1 21 #define VIA1_IRQ_ADB_READY_BIT 2 22 #define VIA1_IRQ_ADB_DATA_BIT 3 23 #define VIA1_IRQ_ADB_CLOCK_BIT 4 24 25 #define VIA1_IRQ_NB 8 26 27 #define VIA1_IRQ_ONE_SECOND (1 << VIA1_IRQ_ONE_SECOND_BIT) 28 #define VIA1_IRQ_60HZ (1 << VIA1_IRQ_60HZ_BIT) 29 #define VIA1_IRQ_ADB_READY (1 << VIA1_IRQ_ADB_READY_BIT) 30 #define VIA1_IRQ_ADB_DATA (1 << VIA1_IRQ_ADB_DATA_BIT) 31 #define VIA1_IRQ_ADB_CLOCK (1 << VIA1_IRQ_ADB_CLOCK_BIT) 32 33 34 #define TYPE_MOS6522_Q800_VIA1 "mos6522-q800-via1" 35 OBJECT_DECLARE_SIMPLE_TYPE(MOS6522Q800VIA1State, MOS6522_Q800_VIA1) 36 37 struct MOS6522Q800VIA1State { 38 /*< private >*/ 39 MOS6522State parent_obj; 40 41 qemu_irq irqs[VIA1_IRQ_NB]; 42 uint8_t last_b; 43 uint8_t PRAM[256]; 44 45 /* external timers */ 46 QEMUTimer *one_second_timer; 47 int64_t next_second; 48 QEMUTimer *sixty_hz_timer; 49 int64_t next_sixty_hz; 50 }; 51 52 53 /* VIA 2 */ 54 #define VIA2_IRQ_SCSI_DATA_BIT 0 55 #define VIA2_IRQ_SLOT_BIT 1 56 #define VIA2_IRQ_UNUSED_BIT 2 57 #define VIA2_IRQ_SCSI_BIT 3 58 #define VIA2_IRQ_ASC_BIT 4 59 60 #define VIA2_IRQ_NB 8 61 62 #define VIA2_IRQ_SCSI_DATA (1 << VIA2_IRQ_SCSI_DATA_BIT) 63 #define VIA2_IRQ_SLOT (1 << VIA2_IRQ_SLOT_BIT) 64 #define VIA2_IRQ_UNUSED (1 << VIA2_IRQ_SCSI_BIT) 65 #define VIA2_IRQ_SCSI (1 << VIA2_IRQ_UNUSED_BIT) 66 #define VIA2_IRQ_ASC (1 << VIA2_IRQ_ASC_BIT) 67 68 #define TYPE_MOS6522_Q800_VIA2 "mos6522-q800-via2" 69 OBJECT_DECLARE_SIMPLE_TYPE(MOS6522Q800VIA2State, MOS6522_Q800_VIA2) 70 71 struct MOS6522Q800VIA2State { 72 /*< private >*/ 73 MOS6522State parent_obj; 74 }; 75 76 77 #define TYPE_MAC_VIA "mac_via" 78 OBJECT_DECLARE_SIMPLE_TYPE(MacVIAState, MAC_VIA) 79 80 struct MacVIAState { 81 SysBusDevice busdev; 82 83 VMChangeStateEntry *vmstate; 84 85 /* MMIO */ 86 MemoryRegion mmio; 87 MemoryRegion via1mem; 88 MemoryRegion via2mem; 89 90 /* VIAs */ 91 MOS6522Q800VIA1State mos6522_via1; 92 MOS6522Q800VIA2State mos6522_via2; 93 94 /* RTC */ 95 uint32_t tick_offset; 96 97 uint8_t data_out; 98 int data_out_cnt; 99 uint8_t data_in; 100 uint8_t data_in_cnt; 101 uint8_t cmd; 102 int wprotect; 103 int alt; 104 BlockBackend *blk; 105 106 /* ADB */ 107 ADBBusState adb_bus; 108 qemu_irq adb_data_ready; 109 int adb_data_in_size; 110 int adb_data_in_index; 111 int adb_data_out_index; 112 uint8_t adb_data_in[128]; 113 uint8_t adb_data_out[16]; 114 uint8_t adb_autopoll_cmd; 115 }; 116 117 #endif 118