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 16 17 /* VIA 1 */ 18 #define VIA1_IRQ_ONE_SECOND_BIT 0 19 #define VIA1_IRQ_VBLANK_BIT 1 20 #define VIA1_IRQ_ADB_READY_BIT 2 21 #define VIA1_IRQ_ADB_DATA_BIT 3 22 #define VIA1_IRQ_ADB_CLOCK_BIT 4 23 24 #define VIA1_IRQ_NB 8 25 26 #define VIA1_IRQ_ONE_SECOND (1 << VIA1_IRQ_ONE_SECOND_BIT) 27 #define VIA1_IRQ_VBLANK (1 << VIA1_IRQ_VBLANK_BIT) 28 #define VIA1_IRQ_ADB_READY (1 << VIA1_IRQ_ADB_READY_BIT) 29 #define VIA1_IRQ_ADB_DATA (1 << VIA1_IRQ_ADB_DATA_BIT) 30 #define VIA1_IRQ_ADB_CLOCK (1 << VIA1_IRQ_ADB_CLOCK_BIT) 31 32 33 #define TYPE_MOS6522_Q800_VIA1 "mos6522-q800-via1" 34 #define MOS6522_Q800_VIA1(obj) OBJECT_CHECK(MOS6522Q800VIA1State, (obj), \ 35 TYPE_MOS6522_Q800_VIA1) 36 37 typedef 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 *VBL_timer; 49 int64_t next_VBL; 50 } MOS6522Q800VIA1State; 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 #define MOS6522_Q800_VIA2(obj) OBJECT_CHECK(MOS6522Q800VIA2State, (obj), \ 70 TYPE_MOS6522_Q800_VIA2) 71 72 typedef struct MOS6522Q800VIA2State { 73 /*< private >*/ 74 MOS6522State parent_obj; 75 } MOS6522Q800VIA2State; 76 77 78 #define TYPE_MAC_VIA "mac_via" 79 #define MAC_VIA(obj) OBJECT_CHECK(MacVIAState, (obj), TYPE_MAC_VIA) 80 81 typedef struct MacVIAState { 82 SysBusDevice busdev; 83 84 /* MMIO */ 85 MemoryRegion mmio; 86 MemoryRegion via1mem; 87 MemoryRegion via2mem; 88 89 /* VIAs */ 90 MOS6522Q800VIA1State mos6522_via1; 91 MOS6522Q800VIA2State mos6522_via2; 92 93 /* RTC */ 94 uint32_t tick_offset; 95 96 uint8_t data_out; 97 int data_out_cnt; 98 uint8_t data_in; 99 uint8_t data_in_cnt; 100 uint8_t cmd; 101 int wprotect; 102 int alt; 103 104 /* ADB */ 105 ADBBusState adb_bus; 106 QEMUTimer *adb_poll_timer; 107 qemu_irq adb_data_ready; 108 int adb_data_in_size; 109 int adb_data_in_index; 110 int adb_data_out_index; 111 uint8_t adb_data_in[128]; 112 uint8_t adb_data_out[16]; 113 } MacVIAState; 114 115 #endif 116