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 uint8_t last_b; 47 48 /* RTC */ 49 uint8_t PRAM[256]; 50 BlockBackend *blk; 51 VMChangeStateEntry *vmstate; 52 53 uint32_t tick_offset; 54 55 uint8_t data_out; 56 int data_out_cnt; 57 uint8_t data_in; 58 uint8_t data_in_cnt; 59 uint8_t cmd; 60 int wprotect; 61 int alt; 62 63 /* ADB */ 64 ADBBusState adb_bus; 65 qemu_irq adb_data_ready; 66 int adb_data_in_size; 67 int adb_data_in_index; 68 int adb_data_out_index; 69 uint8_t adb_data_in[128]; 70 uint8_t adb_data_out[16]; 71 uint8_t adb_autopoll_cmd; 72 73 /* external timers */ 74 QEMUTimer *one_second_timer; 75 int64_t next_second; 76 QEMUTimer *sixty_hz_timer; 77 int64_t next_sixty_hz; 78 }; 79 80 81 /* VIA 2 */ 82 #define VIA2_IRQ_SCSI_DATA_BIT 0 83 #define VIA2_IRQ_NUBUS_BIT 1 84 #define VIA2_IRQ_UNUSED_BIT 2 85 #define VIA2_IRQ_SCSI_BIT 3 86 #define VIA2_IRQ_ASC_BIT 4 87 88 #define VIA2_IRQ_NB 8 89 90 #define VIA2_IRQ_SCSI_DATA (1 << VIA2_IRQ_SCSI_DATA_BIT) 91 #define VIA2_IRQ_NUBUS (1 << VIA2_IRQ_NUBUS_BIT) 92 #define VIA2_IRQ_UNUSED (1 << VIA2_IRQ_SCSI_BIT) 93 #define VIA2_IRQ_SCSI (1 << VIA2_IRQ_UNUSED_BIT) 94 #define VIA2_IRQ_ASC (1 << VIA2_IRQ_ASC_BIT) 95 96 #define VIA2_NUBUS_IRQ_NB 7 97 98 #define VIA2_NUBUS_IRQ_9 0 99 #define VIA2_NUBUS_IRQ_A 1 100 #define VIA2_NUBUS_IRQ_B 2 101 #define VIA2_NUBUS_IRQ_C 3 102 #define VIA2_NUBUS_IRQ_D 4 103 #define VIA2_NUBUS_IRQ_E 5 104 #define VIA2_NUBUS_IRQ_INTVIDEO 6 105 106 #define TYPE_MOS6522_Q800_VIA2 "mos6522-q800-via2" 107 OBJECT_DECLARE_SIMPLE_TYPE(MOS6522Q800VIA2State, MOS6522_Q800_VIA2) 108 109 struct MOS6522Q800VIA2State { 110 /*< private >*/ 111 MOS6522State parent_obj; 112 113 MemoryRegion via_mem; 114 }; 115 116 #endif 117