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d91fd756 AP |
1 | /* |
2 | * QEMU model of the Canon DIGIC boards (cameras indeed :). | |
3 | * | |
4 | * Copyright (C) 2013 Antony Pavlov <antonynpavlov@gmail.com> | |
5 | * | |
6 | * This model is based on reverse engineering efforts | |
7 | * made by CHDK (http://chdk.wikia.com) and | |
8 | * Magic Lantern (http://www.magiclantern.fm) projects | |
9 | * contributors. | |
10 | * | |
11 | * See docs here: | |
12 | * http://magiclantern.wikia.com/wiki/Register_Map | |
13 | * | |
14 | * This program is free software; you can redistribute it and/or modify | |
15 | * it under the terms of the GNU General Public License as published by | |
16 | * the Free Software Foundation; either version 2 of the License, or | |
17 | * (at your option) any later version. | |
18 | * | |
19 | * This program is distributed in the hope that it will be useful, | |
20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
22 | * GNU General Public License for more details. | |
23 | * | |
24 | */ | |
25 | ||
12b16722 | 26 | #include "qemu/osdep.h" |
da34e65c | 27 | #include "qapi/error.h" |
d91fd756 AP |
28 | #include "hw/boards.h" |
29 | #include "exec/address-spaces.h" | |
30 | #include "qemu/error-report.h" | |
31 | #include "hw/arm/digic.h" | |
04234a37 AP |
32 | #include "hw/block/flash.h" |
33 | #include "hw/loader.h" | |
34 | #include "sysemu/sysemu.h" | |
35 | #include "sysemu/qtest.h" | |
36 | ||
37 | #define DIGIC4_ROM0_BASE 0xf0000000 | |
38 | #define DIGIC4_ROM1_BASE 0xf8000000 | |
39 | #define DIGIC4_ROM_MAX_SIZE 0x08000000 | |
d91fd756 AP |
40 | |
41 | typedef struct DigicBoardState { | |
42 | DigicState *digic; | |
43 | MemoryRegion ram; | |
44 | } DigicBoardState; | |
45 | ||
46 | typedef struct DigicBoard { | |
47 | hwaddr ram_size; | |
04234a37 AP |
48 | void (*add_rom0)(DigicBoardState *, hwaddr, const char *); |
49 | const char *rom0_def_filename; | |
50 | void (*add_rom1)(DigicBoardState *, hwaddr, const char *); | |
51 | const char *rom1_def_filename; | |
d91fd756 AP |
52 | } DigicBoard; |
53 | ||
54 | static void digic4_board_setup_ram(DigicBoardState *s, hwaddr ram_size) | |
55 | { | |
c8623c02 | 56 | memory_region_allocate_system_memory(&s->ram, NULL, "ram", ram_size); |
d91fd756 | 57 | memory_region_add_subregion(get_system_memory(), 0, &s->ram); |
d91fd756 AP |
58 | } |
59 | ||
60 | static void digic4_board_init(DigicBoard *board) | |
61 | { | |
62 | Error *err = NULL; | |
63 | ||
64 | DigicBoardState *s = g_new(DigicBoardState, 1); | |
65 | ||
66 | s->digic = DIGIC(object_new(TYPE_DIGIC)); | |
67 | object_property_set_bool(OBJECT(s->digic), true, "realized", &err); | |
68 | if (err != NULL) { | |
c29b77f9 | 69 | error_reportf_err(err, "Couldn't realize DIGIC SoC: "); |
d91fd756 AP |
70 | exit(1); |
71 | } | |
72 | ||
73 | digic4_board_setup_ram(s, board->ram_size); | |
04234a37 AP |
74 | |
75 | if (board->add_rom0) { | |
76 | board->add_rom0(s, DIGIC4_ROM0_BASE, board->rom0_def_filename); | |
77 | } | |
78 | ||
79 | if (board->add_rom1) { | |
80 | board->add_rom1(s, DIGIC4_ROM1_BASE, board->rom1_def_filename); | |
81 | } | |
82 | } | |
83 | ||
84 | static void digic_load_rom(DigicBoardState *s, hwaddr addr, | |
85 | hwaddr max_size, const char *def_filename) | |
86 | { | |
87 | target_long rom_size; | |
88 | const char *filename; | |
89 | ||
90 | if (qtest_enabled()) { | |
91 | /* qtest runs no code so don't attempt a ROM load which | |
92 | * could fail and result in a spurious test failure. | |
93 | */ | |
94 | return; | |
95 | } | |
96 | ||
97 | if (bios_name) { | |
98 | filename = bios_name; | |
99 | } else { | |
100 | filename = def_filename; | |
101 | } | |
102 | ||
103 | if (filename) { | |
104 | char *fn = qemu_find_file(QEMU_FILE_TYPE_BIOS, filename); | |
105 | ||
106 | if (!fn) { | |
d448527a | 107 | error_report("Couldn't find rom image '%s'.", filename); |
04234a37 AP |
108 | exit(1); |
109 | } | |
110 | ||
111 | rom_size = load_image_targphys(fn, addr, max_size); | |
112 | if (rom_size < 0 || rom_size > max_size) { | |
d448527a | 113 | error_report("Couldn't load rom image '%s'.", filename); |
04234a37 AP |
114 | exit(1); |
115 | } | |
6e05a12f | 116 | g_free(fn); |
04234a37 AP |
117 | } |
118 | } | |
119 | ||
120 | /* | |
121 | * Samsung K8P3215UQB | |
122 | * 64M Bit (4Mx16) Page Mode / Multi-Bank NOR Flash Memory | |
123 | */ | |
124 | static void digic4_add_k8p3215uqb_rom(DigicBoardState *s, hwaddr addr, | |
125 | const char *def_filename) | |
126 | { | |
127 | #define FLASH_K8P3215UQB_SIZE (4 * 1024 * 1024) | |
128 | #define FLASH_K8P3215UQB_SECTOR_SIZE (64 * 1024) | |
129 | ||
130 | pflash_cfi02_register(addr, NULL, "pflash", FLASH_K8P3215UQB_SIZE, | |
131 | NULL, FLASH_K8P3215UQB_SECTOR_SIZE, | |
132 | FLASH_K8P3215UQB_SIZE / FLASH_K8P3215UQB_SECTOR_SIZE, | |
133 | DIGIC4_ROM_MAX_SIZE / FLASH_K8P3215UQB_SIZE, | |
134 | 4, | |
135 | 0x00EC, 0x007E, 0x0003, 0x0001, | |
136 | 0x0555, 0x2aa, 0); | |
137 | ||
138 | digic_load_rom(s, addr, FLASH_K8P3215UQB_SIZE, def_filename); | |
d91fd756 AP |
139 | } |
140 | ||
141 | static DigicBoard digic4_board_canon_a1100 = { | |
142 | .ram_size = 64 * 1024 * 1024, | |
04234a37 AP |
143 | .add_rom1 = digic4_add_k8p3215uqb_rom, |
144 | .rom1_def_filename = "canon-a1100-rom1.bin", | |
d91fd756 AP |
145 | }; |
146 | ||
3ef96221 | 147 | static void canon_a1100_init(MachineState *machine) |
d91fd756 AP |
148 | { |
149 | digic4_board_init(&digic4_board_canon_a1100); | |
150 | } | |
151 | ||
e264d29d | 152 | static void canon_a1100_machine_init(MachineClass *mc) |
d91fd756 | 153 | { |
e264d29d EH |
154 | mc->desc = "Canon PowerShot A1100 IS"; |
155 | mc->init = &canon_a1100_init; | |
d91fd756 AP |
156 | } |
157 | ||
e264d29d | 158 | DEFINE_MACHINE("canon-a1100", canon_a1100_machine_init) |