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 | |
26 | #include "qemu/osdep.h" |
27 | #include "qapi/error.h" |
28 | #include "qemu-common.h" |
29 | #include "cpu.h" |
30 | #include "hw/boards.h" |
31 | #include "exec/address-spaces.h" |
32 | #include "qemu/error-report.h" |
33 | #include "hw/arm/digic.h" |
34 | #include "hw/block/flash.h" |
35 | #include "hw/loader.h" |
36 | #include "sysemu/sysemu.h" |
37 | #include "sysemu/qtest.h" |
38 | |
39 | #define DIGIC4_ROM0_BASE 0xf0000000 |
40 | #define DIGIC4_ROM1_BASE 0xf8000000 |
41 | #define DIGIC4_ROM_MAX_SIZE 0x08000000 |
42 | |
43 | typedef struct DigicBoardState { |
44 | DigicState *digic; |
45 | MemoryRegion ram; |
46 | } DigicBoardState; |
47 | |
48 | typedef struct DigicBoard { |
49 | hwaddr ram_size; |
50 | void (*add_rom0)(DigicBoardState *, hwaddr, const char *); |
51 | const char *rom0_def_filename; |
52 | void (*add_rom1)(DigicBoardState *, hwaddr, const char *); |
53 | const char *rom1_def_filename; |
54 | } DigicBoard; |
55 | |
56 | static void digic4_board_setup_ram(DigicBoardState *s, hwaddr ram_size) |
57 | { |
58 | memory_region_allocate_system_memory(&s->ram, NULL, "ram" , ram_size); |
59 | memory_region_add_subregion(get_system_memory(), 0, &s->ram); |
60 | } |
61 | |
62 | static void digic4_board_init(DigicBoard *board) |
63 | { |
64 | Error *err = NULL; |
65 | |
66 | DigicBoardState *s = g_new(DigicBoardState, 1); |
67 | |
68 | s->digic = DIGIC(object_new(TYPE_DIGIC)); |
69 | object_property_set_bool(OBJECT(s->digic), true, "realized" , &err); |
70 | if (err != NULL) { |
71 | error_reportf_err(err, "Couldn't realize DIGIC SoC: " ); |
72 | exit(1); |
73 | } |
74 | |
75 | digic4_board_setup_ram(s, board->ram_size); |
76 | |
77 | if (board->add_rom0) { |
78 | board->add_rom0(s, DIGIC4_ROM0_BASE, board->rom0_def_filename); |
79 | } |
80 | |
81 | if (board->add_rom1) { |
82 | board->add_rom1(s, DIGIC4_ROM1_BASE, board->rom1_def_filename); |
83 | } |
84 | } |
85 | |
86 | static void digic_load_rom(DigicBoardState *s, hwaddr addr, |
87 | hwaddr max_size, const char *def_filename) |
88 | { |
89 | target_long rom_size; |
90 | const char *filename; |
91 | |
92 | if (qtest_enabled()) { |
93 | /* qtest runs no code so don't attempt a ROM load which |
94 | * could fail and result in a spurious test failure. |
95 | */ |
96 | return; |
97 | } |
98 | |
99 | if (bios_name) { |
100 | filename = bios_name; |
101 | } else { |
102 | filename = def_filename; |
103 | } |
104 | |
105 | if (filename) { |
106 | char *fn = qemu_find_file(QEMU_FILE_TYPE_BIOS, filename); |
107 | |
108 | if (!fn) { |
109 | error_report("Couldn't find rom image '%s'." , filename); |
110 | exit(1); |
111 | } |
112 | |
113 | rom_size = load_image_targphys(fn, addr, max_size); |
114 | if (rom_size < 0 || rom_size > max_size) { |
115 | error_report("Couldn't load rom image '%s'." , filename); |
116 | exit(1); |
117 | } |
118 | g_free(fn); |
119 | } |
120 | } |
121 | |
122 | /* |
123 | * Samsung K8P3215UQB |
124 | * 64M Bit (4Mx16) Page Mode / Multi-Bank NOR Flash Memory |
125 | */ |
126 | static void digic4_add_k8p3215uqb_rom(DigicBoardState *s, hwaddr addr, |
127 | const char *def_filename) |
128 | { |
129 | #define FLASH_K8P3215UQB_SIZE (4 * 1024 * 1024) |
130 | #define FLASH_K8P3215UQB_SECTOR_SIZE (64 * 1024) |
131 | |
132 | pflash_cfi02_register(addr, "pflash" , FLASH_K8P3215UQB_SIZE, |
133 | NULL, FLASH_K8P3215UQB_SECTOR_SIZE, |
134 | DIGIC4_ROM_MAX_SIZE / FLASH_K8P3215UQB_SIZE, |
135 | 4, |
136 | 0x00EC, 0x007E, 0x0003, 0x0001, |
137 | 0x0555, 0x2aa, 0); |
138 | |
139 | digic_load_rom(s, addr, FLASH_K8P3215UQB_SIZE, def_filename); |
140 | } |
141 | |
142 | static DigicBoard digic4_board_canon_a1100 = { |
143 | .ram_size = 64 * 1024 * 1024, |
144 | .add_rom1 = digic4_add_k8p3215uqb_rom, |
145 | .rom1_def_filename = "canon-a1100-rom1.bin" , |
146 | }; |
147 | |
148 | static void canon_a1100_init(MachineState *machine) |
149 | { |
150 | digic4_board_init(&digic4_board_canon_a1100); |
151 | } |
152 | |
153 | static void canon_a1100_machine_init(MachineClass *mc) |
154 | { |
155 | mc->desc = "Canon PowerShot A1100 IS" ; |
156 | mc->init = &canon_a1100_init; |
157 | mc->ignore_memory_transaction_failures = true; |
158 | } |
159 | |
160 | DEFINE_MACHINE("canon-a1100" , canon_a1100_machine_init) |
161 | |