xref: /openbmc/qemu/include/hw/misc/macio/cuda.h (revision d4b70fa4)
1 /*
2  * QEMU PowerMac CUDA device support
3  *
4  * Copyright (c) 2004-2007 Fabrice Bellard
5  * Copyright (c) 2007 Jocelyn Mayer
6  *
7  * Permission is hereby granted, free of charge, to any person obtaining a copy
8  * of this software and associated documentation files (the "Software"), to deal
9  * in the Software without restriction, including without limitation the rights
10  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11  * copies of the Software, and to permit persons to whom the Software is
12  * furnished to do so, subject to the following conditions:
13  *
14  * The above copyright notice and this permission notice shall be included in
15  * all copies or substantial portions of the Software.
16  *
17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
23  * THE SOFTWARE.
24  */
25 
26 #ifndef CUDA_H
27 #define CUDA_H
28 
29 #include "hw/misc/mos6522.h"
30 #include "qom/object.h"
31 
32 /* CUDA commands (2nd byte) */
33 #define CUDA_WARM_START                0x0
34 #define CUDA_AUTOPOLL                  0x1
35 #define CUDA_GET_6805_ADDR             0x2
36 #define CUDA_GET_TIME                  0x3
37 #define CUDA_GET_PRAM                  0x7
38 #define CUDA_SET_6805_ADDR             0x8
39 #define CUDA_SET_TIME                  0x9
40 #define CUDA_POWERDOWN                 0xa
41 #define CUDA_POWERUP_TIME              0xb
42 #define CUDA_SET_PRAM                  0xc
43 #define CUDA_MS_RESET                  0xd
44 #define CUDA_SEND_DFAC                 0xe
45 #define CUDA_BATTERY_SWAP_SENSE        0x10
46 #define CUDA_RESET_SYSTEM              0x11
47 #define CUDA_SET_IPL                   0x12
48 #define CUDA_FILE_SERVER_FLAG          0x13
49 #define CUDA_SET_AUTO_RATE             0x14
50 #define CUDA_GET_AUTO_RATE             0x16
51 #define CUDA_SET_DEVICE_LIST           0x19
52 #define CUDA_GET_DEVICE_LIST           0x1a
53 #define CUDA_SET_ONE_SECOND_MODE       0x1b
54 #define CUDA_SET_POWER_MESSAGES        0x21
55 #define CUDA_GET_SET_IIC               0x22
56 #define CUDA_WAKEUP                    0x23
57 #define CUDA_TIMER_TICKLE              0x24
58 #define CUDA_COMBINED_FORMAT_IIC       0x25
59 
60 
61 /* MOS6522 CUDA */
62 struct MOS6522CUDAState {
63     /*< private >*/
64     MOS6522State parent_obj;
65 };
66 
67 #define TYPE_MOS6522_CUDA "mos6522-cuda"
68 OBJECT_DECLARE_SIMPLE_TYPE(MOS6522CUDAState, MOS6522_CUDA)
69 
70 /* Cuda */
71 #define TYPE_CUDA "cuda"
72 OBJECT_DECLARE_SIMPLE_TYPE(CUDAState, CUDA)
73 
74 struct CUDAState {
75     /*< private >*/
76     SysBusDevice parent_obj;
77     /*< public >*/
78     MemoryRegion mem;
79 
80     ADBBusState adb_bus;
81     MOS6522CUDAState mos6522_cuda;
82 
83     uint32_t tick_offset;
84     uint64_t tb_frequency;
85 
86     uint8_t last_b;
87     uint8_t last_acr;
88 
89     /* MacOS 9 is racy and requires a delay upon setting the SR_INT bit */
90     uint64_t sr_delay_ns;
91     QEMUTimer *sr_delay_timer;
92 
93     int data_in_size;
94     int data_in_index;
95     int data_out_index;
96 
97     qemu_irq irq;
98     uint8_t data_in[128];
99     uint8_t data_out[16];
100 };
101 
102 #endif /* CUDA_H */
103