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 0 22 #define VIA1_IRQ_60HZ_BIT 1 23 #define VIA1_IRQ_ADB_READY_BIT 2 24 #define VIA1_IRQ_ADB_DATA_BIT 3 25 #define VIA1_IRQ_ADB_CLOCK_BIT 4 26 27 #define VIA1_IRQ_NB 8 28 29 #define VIA1_IRQ_ONE_SECOND (1 << VIA1_IRQ_ONE_SECOND_BIT) 30 #define VIA1_IRQ_60HZ (1 << VIA1_IRQ_60HZ_BIT) 31 #define VIA1_IRQ_ADB_READY (1 << VIA1_IRQ_ADB_READY_BIT) 32 #define VIA1_IRQ_ADB_DATA (1 << VIA1_IRQ_ADB_DATA_BIT) 33 #define VIA1_IRQ_ADB_CLOCK (1 << VIA1_IRQ_ADB_CLOCK_BIT) 34 35 36 #define TYPE_MOS6522_Q800_VIA1 "mos6522-q800-via1" 37 OBJECT_DECLARE_SIMPLE_TYPE(MOS6522Q800VIA1State, MOS6522_Q800_VIA1) 38 39 struct MOS6522Q800VIA1State { 40 /*< private >*/ 41 MOS6522State parent_obj; 42 43 MemoryRegion via_mem; 44 45 qemu_irq irqs[VIA1_IRQ_NB]; 46 qemu_irq auxmode_irq; 47 uint8_t last_b; 48 49 /* RTC */ 50 uint8_t PRAM[256]; 51 BlockBackend *blk; 52 VMChangeStateEntry *vmstate; 53 54 uint32_t tick_offset; 55 56 uint8_t data_out; 57 int data_out_cnt; 58 uint8_t data_in; 59 uint8_t data_in_cnt; 60 uint8_t cmd; 61 int wprotect; 62 int alt; 63 64 /* ADB */ 65 ADBBusState adb_bus; 66 qemu_irq adb_data_ready; 67 int adb_data_in_size; 68 int adb_data_in_index; 69 int adb_data_out_index; 70 uint8_t adb_data_in[128]; 71 uint8_t adb_data_out[16]; 72 uint8_t adb_autopoll_cmd; 73 74 /* external timers */ 75 QEMUTimer *one_second_timer; 76 int64_t next_second; 77 QEMUTimer *sixty_hz_timer; 78 int64_t next_sixty_hz; 79 }; 80 81 82 /* VIA 2 */ 83 #define VIA2_IRQ_SCSI_DATA_BIT 0 84 #define VIA2_IRQ_NUBUS_BIT 1 85 #define VIA2_IRQ_UNUSED_BIT 2 86 #define VIA2_IRQ_SCSI_BIT 3 87 #define VIA2_IRQ_ASC_BIT 4 88 89 #define VIA2_IRQ_NB 8 90 91 #define VIA2_IRQ_SCSI_DATA (1 << VIA2_IRQ_SCSI_DATA_BIT) 92 #define VIA2_IRQ_NUBUS (1 << VIA2_IRQ_NUBUS_BIT) 93 #define VIA2_IRQ_UNUSED (1 << VIA2_IRQ_SCSI_BIT) 94 #define VIA2_IRQ_SCSI (1 << VIA2_IRQ_UNUSED_BIT) 95 #define VIA2_IRQ_ASC (1 << VIA2_IRQ_ASC_BIT) 96 97 #define VIA2_NUBUS_IRQ_NB 7 98 99 #define VIA2_NUBUS_IRQ_9 0 100 #define VIA2_NUBUS_IRQ_A 1 101 #define VIA2_NUBUS_IRQ_B 2 102 #define VIA2_NUBUS_IRQ_C 3 103 #define VIA2_NUBUS_IRQ_D 4 104 #define VIA2_NUBUS_IRQ_E 5 105 #define VIA2_NUBUS_IRQ_INTVIDEO 6 106 107 #define TYPE_MOS6522_Q800_VIA2 "mos6522-q800-via2" 108 OBJECT_DECLARE_SIMPLE_TYPE(MOS6522Q800VIA2State, MOS6522_Q800_VIA2) 109 110 struct MOS6522Q800VIA2State { 111 /*< private >*/ 112 MOS6522State parent_obj; 113 114 MemoryRegion via_mem; 115 }; 116 117 #endif 118