Commit 30aa5c0d303c334c646e9db1ebadda0c0db8b13f
1 parent
5e85404a
Convert from DOS to UNIX format, no code change.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4043 c046a42c-6fe2-441c-8c8c-71466251a162
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123 deletions
hw/ds1225y.c
1 | -/* | |
2 | - * QEMU NVRAM emulation for DS1225Y chip | |
3 | - * | |
4 | - * Copyright (c) 2007 Hervé Poussineau | |
5 | - * | |
6 | - * Permission is hereby granted, free of charge, to any person obtaining a copy | |
7 | - * of this software and associated documentation files (the "Software"), to deal | |
8 | - * in the Software without restriction, including without limitation the rights | |
9 | - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
10 | - * copies of the Software, and to permit persons to whom the Software is | |
11 | - * furnished to do so, subject to the following conditions: | |
12 | - * | |
13 | - * The above copyright notice and this permission notice shall be included in | |
14 | - * all copies or substantial portions of the Software. | |
15 | - * | |
16 | - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
17 | - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
18 | - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
19 | - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
20 | - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
21 | - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
22 | - * THE SOFTWARE. | |
23 | - */ | |
24 | - | |
25 | -#include "hw.h" | |
26 | -#include "mips.h" | |
27 | -#include "nvram.h" | |
28 | - | |
29 | -typedef enum | |
30 | -{ | |
31 | - none = 0, | |
32 | - readmode, | |
33 | - writemode, | |
34 | -} nvram_open_mode; | |
35 | - | |
36 | -struct ds1225y_t | |
37 | -{ | |
38 | - target_phys_addr_t mem_base; | |
39 | - uint32_t capacity; | |
40 | - const char *filename; | |
41 | - QEMUFile *file; | |
42 | - nvram_open_mode open_mode; | |
43 | -}; | |
44 | - | |
45 | -static int ds1225y_set_to_mode(ds1225y_t *NVRAM, nvram_open_mode mode, const char *filemode) | |
46 | -{ | |
47 | - if (NVRAM->open_mode != mode) | |
48 | - { | |
49 | - if (NVRAM->file) | |
50 | - qemu_fclose(NVRAM->file); | |
51 | - NVRAM->file = qemu_fopen(NVRAM->filename, filemode); | |
52 | - NVRAM->open_mode = mode; | |
53 | - } | |
54 | - return (NVRAM->file != NULL); | |
55 | -} | |
56 | - | |
57 | -static uint32_t nvram_readb (void *opaque, target_phys_addr_t addr) | |
58 | -{ | |
59 | - ds1225y_t *NVRAM = opaque; | |
60 | - int64_t pos; | |
61 | - | |
62 | - pos = addr - NVRAM->mem_base; | |
63 | - if (addr >= NVRAM->capacity) | |
64 | - addr -= NVRAM->capacity; | |
65 | - | |
66 | - if (!ds1225y_set_to_mode(NVRAM, readmode, "rb")) | |
67 | - return 0; | |
68 | - qemu_fseek(NVRAM->file, pos, SEEK_SET); | |
69 | - return (uint32_t)qemu_get_byte(NVRAM->file); | |
70 | -} | |
71 | - | |
72 | -static void nvram_writeb (void *opaque, target_phys_addr_t addr, uint32_t value) | |
73 | -{ | |
74 | - ds1225y_t *NVRAM = opaque; | |
75 | - int64_t pos; | |
76 | - | |
77 | - pos = addr - NVRAM->mem_base; | |
78 | - if (ds1225y_set_to_mode(NVRAM, writemode, "wb")) | |
79 | - { | |
80 | - qemu_fseek(NVRAM->file, pos, SEEK_SET); | |
81 | - qemu_put_byte(NVRAM->file, (int)value); | |
82 | - } | |
83 | -} | |
84 | - | |
85 | -static CPUReadMemoryFunc *nvram_read[] = { | |
86 | - &nvram_readb, | |
87 | - NULL, | |
88 | - NULL, | |
89 | -}; | |
90 | - | |
91 | -static CPUWriteMemoryFunc *nvram_write[] = { | |
92 | - &nvram_writeb, | |
93 | - NULL, | |
94 | - NULL, | |
95 | -}; | |
96 | - | |
97 | -static CPUWriteMemoryFunc *nvram_none[] = { | |
98 | - NULL, | |
99 | - NULL, | |
100 | - NULL, | |
101 | -}; | |
102 | - | |
103 | -/* Initialisation routine */ | |
104 | -ds1225y_t *ds1225y_init(target_phys_addr_t mem_base, const char *filename) | |
105 | -{ | |
106 | - ds1225y_t *s; | |
107 | - int mem_index1, mem_index2; | |
108 | - | |
109 | - s = qemu_mallocz(sizeof(ds1225y_t)); | |
110 | - if (!s) | |
111 | - return NULL; | |
112 | - s->mem_base = mem_base; | |
113 | - s->capacity = 0x2000; /* Fixed for ds1225y chip: 8K */ | |
114 | - s->filename = filename; | |
115 | - | |
116 | - /* Read/write memory */ | |
117 | - mem_index1 = cpu_register_io_memory(0, nvram_read, nvram_write, s); | |
118 | - cpu_register_physical_memory(mem_base, s->capacity, mem_index1); | |
119 | - /* Read-only memory */ | |
120 | - mem_index2 = cpu_register_io_memory(0, nvram_read, nvram_none, s); | |
121 | - cpu_register_physical_memory(mem_base + s->capacity, s->capacity, mem_index2); | |
122 | - return s; | |
123 | -} | |
1 | +/* | |
2 | + * QEMU NVRAM emulation for DS1225Y chip | |
3 | + * | |
4 | + * Copyright (c) 2007 Hervé Poussineau | |
5 | + * | |
6 | + * Permission is hereby granted, free of charge, to any person obtaining a copy | |
7 | + * of this software and associated documentation files (the "Software"), to deal | |
8 | + * in the Software without restriction, including without limitation the rights | |
9 | + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
10 | + * copies of the Software, and to permit persons to whom the Software is | |
11 | + * furnished to do so, subject to the following conditions: | |
12 | + * | |
13 | + * The above copyright notice and this permission notice shall be included in | |
14 | + * all copies or substantial portions of the Software. | |
15 | + * | |
16 | + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
17 | + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
18 | + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
19 | + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
20 | + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
21 | + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
22 | + * THE SOFTWARE. | |
23 | + */ | |
24 | + | |
25 | +#include "hw.h" | |
26 | +#include "mips.h" | |
27 | +#include "nvram.h" | |
28 | + | |
29 | +typedef enum | |
30 | +{ | |
31 | + none = 0, | |
32 | + readmode, | |
33 | + writemode, | |
34 | +} nvram_open_mode; | |
35 | + | |
36 | +struct ds1225y_t | |
37 | +{ | |
38 | + target_phys_addr_t mem_base; | |
39 | + uint32_t capacity; | |
40 | + const char *filename; | |
41 | + QEMUFile *file; | |
42 | + nvram_open_mode open_mode; | |
43 | +}; | |
44 | + | |
45 | +static int ds1225y_set_to_mode(ds1225y_t *NVRAM, nvram_open_mode mode, const char *filemode) | |
46 | +{ | |
47 | + if (NVRAM->open_mode != mode) | |
48 | + { | |
49 | + if (NVRAM->file) | |
50 | + qemu_fclose(NVRAM->file); | |
51 | + NVRAM->file = qemu_fopen(NVRAM->filename, filemode); | |
52 | + NVRAM->open_mode = mode; | |
53 | + } | |
54 | + return (NVRAM->file != NULL); | |
55 | +} | |
56 | + | |
57 | +static uint32_t nvram_readb (void *opaque, target_phys_addr_t addr) | |
58 | +{ | |
59 | + ds1225y_t *NVRAM = opaque; | |
60 | + int64_t pos; | |
61 | + | |
62 | + pos = addr - NVRAM->mem_base; | |
63 | + if (addr >= NVRAM->capacity) | |
64 | + addr -= NVRAM->capacity; | |
65 | + | |
66 | + if (!ds1225y_set_to_mode(NVRAM, readmode, "rb")) | |
67 | + return 0; | |
68 | + qemu_fseek(NVRAM->file, pos, SEEK_SET); | |
69 | + return (uint32_t)qemu_get_byte(NVRAM->file); | |
70 | +} | |
71 | + | |
72 | +static void nvram_writeb (void *opaque, target_phys_addr_t addr, uint32_t value) | |
73 | +{ | |
74 | + ds1225y_t *NVRAM = opaque; | |
75 | + int64_t pos; | |
76 | + | |
77 | + pos = addr - NVRAM->mem_base; | |
78 | + if (ds1225y_set_to_mode(NVRAM, writemode, "wb")) | |
79 | + { | |
80 | + qemu_fseek(NVRAM->file, pos, SEEK_SET); | |
81 | + qemu_put_byte(NVRAM->file, (int)value); | |
82 | + } | |
83 | +} | |
84 | + | |
85 | +static CPUReadMemoryFunc *nvram_read[] = { | |
86 | + &nvram_readb, | |
87 | + NULL, | |
88 | + NULL, | |
89 | +}; | |
90 | + | |
91 | +static CPUWriteMemoryFunc *nvram_write[] = { | |
92 | + &nvram_writeb, | |
93 | + NULL, | |
94 | + NULL, | |
95 | +}; | |
96 | + | |
97 | +static CPUWriteMemoryFunc *nvram_none[] = { | |
98 | + NULL, | |
99 | + NULL, | |
100 | + NULL, | |
101 | +}; | |
102 | + | |
103 | +/* Initialisation routine */ | |
104 | +ds1225y_t *ds1225y_init(target_phys_addr_t mem_base, const char *filename) | |
105 | +{ | |
106 | + ds1225y_t *s; | |
107 | + int mem_index1, mem_index2; | |
108 | + | |
109 | + s = qemu_mallocz(sizeof(ds1225y_t)); | |
110 | + if (!s) | |
111 | + return NULL; | |
112 | + s->mem_base = mem_base; | |
113 | + s->capacity = 0x2000; /* Fixed for ds1225y chip: 8K */ | |
114 | + s->filename = filename; | |
115 | + | |
116 | + /* Read/write memory */ | |
117 | + mem_index1 = cpu_register_io_memory(0, nvram_read, nvram_write, s); | |
118 | + cpu_register_physical_memory(mem_base, s->capacity, mem_index1); | |
119 | + /* Read-only memory */ | |
120 | + mem_index2 = cpu_register_io_memory(0, nvram_read, nvram_none, s); | |
121 | + cpu_register_physical_memory(mem_base + s->capacity, s->capacity, mem_index2); | |
122 | + return s; | |
123 | +} | ... | ... |