| 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 "system/memory.h" |
| 13 | #include "hw/core/sysbus.h" |
| 14 | #include "hw/misc/mos6522.h" |
| 15 | #include "hw/input/adb.h" |
| 16 | #include "qom/object.h" |
| 17 | |
| 18 | |
| 19 | #define VIA_SIZE 0x2000 |
| 20 | |
| 21 | /* VIA 1 */ |
| 22 | #define VIA1_IRQ_ONE_SECOND_BIT CA2_INT_BIT |
| 23 | #define VIA1_IRQ_60HZ_BIT CA1_INT_BIT |
| 24 | #define VIA1_IRQ_ADB_READY_BIT SR_INT_BIT |
| 25 | #define VIA1_IRQ_ADB_DATA_BIT CB2_INT_BIT |
| 26 | #define VIA1_IRQ_ADB_CLOCK_BIT CB1_INT_BIT |
| 27 | |
| 28 | #define VIA1_IRQ_ONE_SECOND BIT(VIA1_IRQ_ONE_SECOND_BIT) |
| 29 | #define VIA1_IRQ_60HZ BIT(VIA1_IRQ_60HZ_BIT) |
| 30 | #define VIA1_IRQ_ADB_READY BIT(VIA1_IRQ_ADB_READY_BIT) |
| 31 | #define VIA1_IRQ_ADB_DATA BIT(VIA1_IRQ_ADB_DATA_BIT) |
| 32 | #define VIA1_IRQ_ADB_CLOCK BIT(VIA1_IRQ_ADB_CLOCK_BIT) |
| 33 | |
| 34 | |
| 35 | #define TYPE_MOS6522_Q800_VIA1 "mos6522-q800-via1" |
| 36 | OBJECT_DECLARE_SIMPLE_TYPE(MOS6522Q800VIA1State, MOS6522_Q800_VIA1) |
| 37 | |
| 38 | struct MOS6522Q800VIA1State { |
| 39 | /*< private >*/ |
| 40 | MOS6522State parent_obj; |
| 41 | |
| 42 | MemoryRegion via_mem; |
| 43 | |
| 44 | qemu_irq auxmode_irq; |
| 45 | uint8_t last_b; |
| 46 | |
| 47 | /* RTC */ |
| 48 | uint8_t PRAM[256]; |
| 49 | BlockBackend *blk; |
| 50 | VMChangeStateEntry *vmstate; |
| 51 | |
| 52 | uint32_t tick_offset; |
| 53 | |
| 54 | uint8_t data_out; |
| 55 | int data_out_cnt; |
| 56 | uint8_t data_in; |
| 57 | uint8_t data_in_cnt; |
| 58 | uint8_t cmd; |
| 59 | int wprotect; |
| 60 | int alt; |
| 61 | |
| 62 | /* ADB */ |
| 63 | ADBBusState adb_bus; |
| 64 | qemu_irq adb_data_ready; |
| 65 | int adb_data_in_size; |
| 66 | int adb_data_in_index; |
| 67 | int adb_data_out_index; |
| 68 | uint8_t adb_data_in[128]; |
| 69 | uint8_t adb_data_out[16]; |
| 70 | uint8_t adb_autopoll_cmd; |
| 71 | |
| 72 | /* external timers */ |
| 73 | QEMUTimer *one_second_timer; |
| 74 | int64_t next_second; |
| 75 | QEMUTimer *sixty_hz_timer; |
| 76 | int64_t next_sixty_hz; |
| 77 | |
| 78 | /* SETUPTIMEK hack */ |
| 79 | int timer_hack_state; |
| 80 | }; |
| 81 | |
| 82 | |
| 83 | /* VIA 2 */ |
| 84 | #define VIA2_IRQ_SCSI_DATA_BIT CA2_INT_BIT |
| 85 | #define VIA2_IRQ_NUBUS_BIT CA1_INT_BIT |
| 86 | #define VIA2_IRQ_SCSI_BIT CB2_INT_BIT |
| 87 | #define VIA2_IRQ_ASC_BIT CB1_INT_BIT |
| 88 | |
| 89 | #define VIA2_IRQ_SCSI_DATA BIT(VIA2_IRQ_SCSI_DATA_BIT) |
| 90 | #define VIA2_IRQ_NUBUS BIT(VIA2_IRQ_NUBUS_BIT) |
| 91 | #define VIA2_IRQ_UNUSED BIT(VIA2_IRQ_SCSI_BIT) |
| 92 | #define VIA2_IRQ_SCSI BIT(VIA2_IRQ_UNUSED_BIT) |
| 93 | #define VIA2_IRQ_ASC BIT(VIA2_IRQ_ASC_BIT) |
| 94 | |
| 95 | #define VIA2_NUBUS_IRQ_NB 7 |
| 96 | |
| 97 | #define VIA2_NUBUS_IRQ_9 0 |
| 98 | #define VIA2_NUBUS_IRQ_A 1 |
| 99 | #define VIA2_NUBUS_IRQ_B 2 |
| 100 | #define VIA2_NUBUS_IRQ_C 3 |
| 101 | #define VIA2_NUBUS_IRQ_D 4 |
| 102 | #define VIA2_NUBUS_IRQ_E 5 |
| 103 | #define VIA2_NUBUS_IRQ_INTVIDEO 6 |
| 104 | |
| 105 | #define TYPE_MOS6522_Q800_VIA2 "mos6522-q800-via2" |
| 106 | OBJECT_DECLARE_SIMPLE_TYPE(MOS6522Q800VIA2State, MOS6522_Q800_VIA2) |
| 107 | |
| 108 | struct MOS6522Q800VIA2State { |
| 109 | /*< private >*/ |
| 110 | MOS6522State parent_obj; |
| 111 | |
| 112 | MemoryRegion via_mem; |
| 113 | }; |
| 114 | |
| 115 | #endif |