xref: /openbmc/qemu/include/hw/misc/macio/cuda.h (revision 588c5b0b)
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/input/adb.h"
30 #include "hw/misc/mos6522.h"
31 #include "qom/object.h"
32 
33 /* CUDA commands (2nd byte) */
34 #define CUDA_WARM_START                0x0
35 #define CUDA_AUTOPOLL                  0x1
36 #define CUDA_GET_6805_ADDR             0x2
37 #define CUDA_GET_TIME                  0x3
38 #define CUDA_GET_PRAM                  0x7
39 #define CUDA_SET_6805_ADDR             0x8
40 #define CUDA_SET_TIME                  0x9
41 #define CUDA_POWERDOWN                 0xa
42 #define CUDA_POWERUP_TIME              0xb
43 #define CUDA_SET_PRAM                  0xc
44 #define CUDA_MS_RESET                  0xd
45 #define CUDA_SEND_DFAC                 0xe
46 #define CUDA_BATTERY_SWAP_SENSE        0x10
47 #define CUDA_RESET_SYSTEM              0x11
48 #define CUDA_SET_IPL                   0x12
49 #define CUDA_FILE_SERVER_FLAG          0x13
50 #define CUDA_SET_AUTO_RATE             0x14
51 #define CUDA_GET_AUTO_RATE             0x16
52 #define CUDA_SET_DEVICE_LIST           0x19
53 #define CUDA_GET_DEVICE_LIST           0x1a
54 #define CUDA_SET_ONE_SECOND_MODE       0x1b
55 #define CUDA_SET_POWER_MESSAGES        0x21
56 #define CUDA_GET_SET_IIC               0x22
57 #define CUDA_WAKEUP                    0x23
58 #define CUDA_TIMER_TICKLE              0x24
59 #define CUDA_COMBINED_FORMAT_IIC       0x25
60 
61 
62 /* MOS6522 CUDA */
63 struct MOS6522CUDAState {
64     /*< private >*/
65     MOS6522State parent_obj;
66 };
67 
68 #define TYPE_MOS6522_CUDA "mos6522-cuda"
69 OBJECT_DECLARE_SIMPLE_TYPE(MOS6522CUDAState, MOS6522_CUDA)
70 
71 /* Cuda */
72 #define TYPE_CUDA "cuda"
73 OBJECT_DECLARE_SIMPLE_TYPE(CUDAState, CUDA)
74 
75 struct CUDAState {
76     /*< private >*/
77     SysBusDevice parent_obj;
78     /*< public >*/
79     MemoryRegion mem;
80 
81     ADBBusState adb_bus;
82     MOS6522CUDAState mos6522_cuda;
83 
84     uint32_t tick_offset;
85     uint64_t tb_frequency;
86 
87     uint8_t last_b;
88     uint8_t last_acr;
89 
90     /* MacOS 9 is racy and requires a delay upon setting the SR_INT bit */
91     uint64_t sr_delay_ns;
92     QEMUTimer *sr_delay_timer;
93 
94     int data_in_size;
95     int data_in_index;
96     int data_out_index;
97 
98     qemu_irq irq;
99     uint8_t data_in[128];
100     uint8_t data_out[16];
101 };
102 
103 #endif /* CUDA_H */
104