root / hw / vmport.c @ 6e4ec3f9
History | View | Annotate | Download (4.4 kB)
1 | 0975c304 | ths | /*
|
---|---|---|---|
2 | 0975c304 | ths | * QEMU VMPort emulation
|
3 | 0975c304 | ths | *
|
4 | bcc4e41f | Stefan Weil | * Copyright (C) 2007 Hervé Poussineau
|
5 | 0975c304 | ths | *
|
6 | 0975c304 | ths | * Permission is hereby granted, free of charge, to any person obtaining a copy
|
7 | 0975c304 | ths | * of this software and associated documentation files (the "Software"), to deal
|
8 | 0975c304 | ths | * in the Software without restriction, including without limitation the rights
|
9 | 0975c304 | ths | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
10 | 0975c304 | ths | * copies of the Software, and to permit persons to whom the Software is
|
11 | 0975c304 | ths | * furnished to do so, subject to the following conditions:
|
12 | 0975c304 | ths | *
|
13 | 0975c304 | ths | * The above copyright notice and this permission notice shall be included in
|
14 | 0975c304 | ths | * all copies or substantial portions of the Software.
|
15 | 0975c304 | ths | *
|
16 | 0975c304 | ths | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
17 | 0975c304 | ths | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
18 | 0975c304 | ths | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
19 | 0975c304 | ths | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
20 | 0975c304 | ths | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
21 | 0975c304 | ths | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
22 | 0975c304 | ths | * THE SOFTWARE.
|
23 | 0975c304 | ths | */
|
24 | 87ecb68b | pbrook | #include "hw.h" |
25 | 87ecb68b | pbrook | #include "isa.h" |
26 | 87ecb68b | pbrook | #include "pc.h" |
27 | 03c63b94 | Jan Kiszka | #include "kvm.h" |
28 | 6872ef61 | Blue Swirl | #include "qdev.h" |
29 | 0975c304 | ths | |
30 | 61ada15d | aliguori | //#define VMPORT_DEBUG
|
31 | 61ada15d | aliguori | |
32 | 0975c304 | ths | #define VMPORT_CMD_GETVERSION 0x0a |
33 | 0975c304 | ths | #define VMPORT_CMD_GETRAMSIZE 0x14 |
34 | 0975c304 | ths | |
35 | 0975c304 | ths | #define VMPORT_ENTRIES 0x2c |
36 | 0975c304 | ths | #define VMPORT_MAGIC 0x564D5868 |
37 | 0975c304 | ths | |
38 | 0975c304 | ths | typedef struct _VMPortState |
39 | 0975c304 | ths | { |
40 | 6872ef61 | Blue Swirl | ISADevice dev; |
41 | f75317b4 | Richard Henderson | MemoryRegion io; |
42 | 0975c304 | ths | IOPortReadFunc *func[VMPORT_ENTRIES]; |
43 | 0975c304 | ths | void *opaque[VMPORT_ENTRIES];
|
44 | 0975c304 | ths | } VMPortState; |
45 | 0975c304 | ths | |
46 | e14da0af | Marcelo Tosatti | static VMPortState *port_state;
|
47 | 0975c304 | ths | |
48 | 0975c304 | ths | void vmport_register(unsigned char command, IOPortReadFunc *func, void *opaque) |
49 | 0975c304 | ths | { |
50 | 0975c304 | ths | if (command >= VMPORT_ENTRIES)
|
51 | 0975c304 | ths | return;
|
52 | 0975c304 | ths | |
53 | e14da0af | Marcelo Tosatti | port_state->func[command] = func; |
54 | e14da0af | Marcelo Tosatti | port_state->opaque[command] = opaque; |
55 | 0975c304 | ths | } |
56 | 0975c304 | ths | |
57 | 0975c304 | ths | static uint32_t vmport_ioport_read(void *opaque, uint32_t addr) |
58 | 0975c304 | ths | { |
59 | 0975c304 | ths | VMPortState *s = opaque; |
60 | 26fb5e48 | aurel32 | CPUState *env = cpu_single_env; |
61 | 0975c304 | ths | unsigned char command; |
62 | 6dab28d5 | ths | uint32_t eax; |
63 | 0975c304 | ths | |
64 | 03c63b94 | Jan Kiszka | cpu_synchronize_state(env); |
65 | 03c63b94 | Jan Kiszka | |
66 | 26fb5e48 | aurel32 | eax = env->regs[R_EAX]; |
67 | 0975c304 | ths | if (eax != VMPORT_MAGIC)
|
68 | 0975c304 | ths | return eax;
|
69 | 0975c304 | ths | |
70 | 26fb5e48 | aurel32 | command = env->regs[R_ECX]; |
71 | 0975c304 | ths | if (command >= VMPORT_ENTRIES)
|
72 | 0975c304 | ths | return eax;
|
73 | 0975c304 | ths | if (!s->func[command])
|
74 | 0975c304 | ths | { |
75 | 61ada15d | aliguori | #ifdef VMPORT_DEBUG
|
76 | 61ada15d | aliguori | fprintf(stderr, "vmport: unknown command %x\n", command);
|
77 | 61ada15d | aliguori | #endif
|
78 | 0975c304 | ths | return eax;
|
79 | 0975c304 | ths | } |
80 | 0975c304 | ths | |
81 | 0975c304 | ths | return s->func[command](s->opaque[command], addr);
|
82 | 0975c304 | ths | } |
83 | 0975c304 | ths | |
84 | e9396bde | aliguori | static void vmport_ioport_write(void *opaque, uint32_t addr, uint32_t val) |
85 | e9396bde | aliguori | { |
86 | e9396bde | aliguori | CPUState *env = cpu_single_env; |
87 | e9396bde | aliguori | |
88 | e9396bde | aliguori | env->regs[R_EAX] = vmport_ioport_read(opaque, addr); |
89 | e9396bde | aliguori | } |
90 | e9396bde | aliguori | |
91 | 0975c304 | ths | static uint32_t vmport_cmd_get_version(void *opaque, uint32_t addr) |
92 | 0975c304 | ths | { |
93 | 26fb5e48 | aurel32 | CPUState *env = cpu_single_env; |
94 | 0975c304 | ths | env->regs[R_EBX] = VMPORT_MAGIC; |
95 | 0975c304 | ths | return 6; |
96 | 0975c304 | ths | } |
97 | 0975c304 | ths | |
98 | 0975c304 | ths | static uint32_t vmport_cmd_ram_size(void *opaque, uint32_t addr) |
99 | 0975c304 | ths | { |
100 | 26fb5e48 | aurel32 | CPUState *env = cpu_single_env; |
101 | 0975c304 | ths | env->regs[R_EBX] = 0x1177;
|
102 | 0975c304 | ths | return ram_size;
|
103 | 0975c304 | ths | } |
104 | 0975c304 | ths | |
105 | 86d86414 | Blue Swirl | /* vmmouse helpers */
|
106 | 86d86414 | Blue Swirl | void vmmouse_get_data(uint32_t *data)
|
107 | 86d86414 | Blue Swirl | { |
108 | 86d86414 | Blue Swirl | CPUState *env = cpu_single_env; |
109 | 86d86414 | Blue Swirl | |
110 | 86d86414 | Blue Swirl | data[0] = env->regs[R_EAX]; data[1] = env->regs[R_EBX]; |
111 | 86d86414 | Blue Swirl | data[2] = env->regs[R_ECX]; data[3] = env->regs[R_EDX]; |
112 | 86d86414 | Blue Swirl | data[4] = env->regs[R_ESI]; data[5] = env->regs[R_EDI]; |
113 | 86d86414 | Blue Swirl | } |
114 | 86d86414 | Blue Swirl | |
115 | 86d86414 | Blue Swirl | void vmmouse_set_data(const uint32_t *data) |
116 | 86d86414 | Blue Swirl | { |
117 | 86d86414 | Blue Swirl | CPUState *env = cpu_single_env; |
118 | 86d86414 | Blue Swirl | |
119 | 86d86414 | Blue Swirl | env->regs[R_EAX] = data[0]; env->regs[R_EBX] = data[1]; |
120 | 86d86414 | Blue Swirl | env->regs[R_ECX] = data[2]; env->regs[R_EDX] = data[3]; |
121 | 86d86414 | Blue Swirl | env->regs[R_ESI] = data[4]; env->regs[R_EDI] = data[5]; |
122 | 86d86414 | Blue Swirl | } |
123 | 86d86414 | Blue Swirl | |
124 | f75317b4 | Richard Henderson | static const MemoryRegionPortio vmport_portio[] = { |
125 | f75317b4 | Richard Henderson | {0, 1, 4, .read = vmport_ioport_read, .write = vmport_ioport_write }, |
126 | f75317b4 | Richard Henderson | PORTIO_END_OF_LIST(), |
127 | f75317b4 | Richard Henderson | }; |
128 | f75317b4 | Richard Henderson | |
129 | f75317b4 | Richard Henderson | static const MemoryRegionOps vmport_ops = { |
130 | f75317b4 | Richard Henderson | .old_portio = vmport_portio |
131 | f75317b4 | Richard Henderson | }; |
132 | f75317b4 | Richard Henderson | |
133 | 6872ef61 | Blue Swirl | static int vmport_initfn(ISADevice *dev) |
134 | 0975c304 | ths | { |
135 | 6872ef61 | Blue Swirl | VMPortState *s = DO_UPCAST(VMPortState, dev, dev); |
136 | 0975c304 | ths | |
137 | f75317b4 | Richard Henderson | memory_region_init_io(&s->io, &vmport_ops, s, "vmport", 1); |
138 | f75317b4 | Richard Henderson | isa_register_ioport(dev, &s->io, 0x5658);
|
139 | f75317b4 | Richard Henderson | |
140 | e14da0af | Marcelo Tosatti | port_state = s; |
141 | 0975c304 | ths | /* Register some generic port commands */
|
142 | 26fb5e48 | aurel32 | vmport_register(VMPORT_CMD_GETVERSION, vmport_cmd_get_version, NULL);
|
143 | 26fb5e48 | aurel32 | vmport_register(VMPORT_CMD_GETRAMSIZE, vmport_cmd_ram_size, NULL);
|
144 | 6872ef61 | Blue Swirl | return 0; |
145 | 0975c304 | ths | } |
146 | 6872ef61 | Blue Swirl | |
147 | 8f04ee08 | Anthony Liguori | static void vmport_class_initfn(ObjectClass *klass, void *data) |
148 | 8f04ee08 | Anthony Liguori | { |
149 | 8f04ee08 | Anthony Liguori | ISADeviceClass *ic = ISA_DEVICE_CLASS(klass); |
150 | 8f04ee08 | Anthony Liguori | ic->init = vmport_initfn; |
151 | 8f04ee08 | Anthony Liguori | } |
152 | 8f04ee08 | Anthony Liguori | |
153 | 8f04ee08 | Anthony Liguori | static DeviceInfo vmport_info = {
|
154 | 8f04ee08 | Anthony Liguori | .name = "vmport",
|
155 | 8f04ee08 | Anthony Liguori | .size = sizeof(VMPortState),
|
156 | 8f04ee08 | Anthony Liguori | .no_user = 1,
|
157 | 8f04ee08 | Anthony Liguori | .class_init = vmport_class_initfn, |
158 | 6872ef61 | Blue Swirl | }; |
159 | 6872ef61 | Blue Swirl | |
160 | 6872ef61 | Blue Swirl | static void vmport_dev_register(void) |
161 | 6872ef61 | Blue Swirl | { |
162 | 6872ef61 | Blue Swirl | isa_qdev_register(&vmport_info); |
163 | 6872ef61 | Blue Swirl | } |
164 | 6872ef61 | Blue Swirl | device_init(vmport_dev_register) |