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