aboutsummaryrefslogtreecommitdiff
path: root/hw/arm/digic_boards.c
blob: 2a4b8720a6317aae410daf72fa1ae9579ddc6504 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
/*
 * QEMU model of the Canon DIGIC boards (cameras indeed :).
 *
 * Copyright (C) 2013 Antony Pavlov <antonynpavlov@gmail.com>
 *
 * This model is based on reverse engineering efforts
 * made by CHDK (http://chdk.wikia.com) and
 * Magic Lantern (http://www.magiclantern.fm) projects
 * contributors.
 *
 * See docs here:
 *   http://magiclantern.wikia.com/wiki/Register_Map
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 */

#include "hw/boards.h"
#include "exec/address-spaces.h"
#include "qemu/error-report.h"
#include "hw/arm/digic.h"
#include "hw/block/flash.h"
#include "hw/loader.h"
#include "sysemu/sysemu.h"
#include "sysemu/qtest.h"

#define DIGIC4_ROM0_BASE      0xf0000000
#define DIGIC4_ROM1_BASE      0xf8000000
#define DIGIC4_ROM_MAX_SIZE   0x08000000

typedef struct DigicBoardState {
    DigicState *digic;
    MemoryRegion ram;
} DigicBoardState;

typedef struct DigicBoard {
    hwaddr ram_size;
    void (*add_rom0)(DigicBoardState *, hwaddr, const char *);
    const char *rom0_def_filename;
    void (*add_rom1)(DigicBoardState *, hwaddr, const char *);
    const char *rom1_def_filename;
} DigicBoard;

static void digic4_board_setup_ram(DigicBoardState *s, hwaddr ram_size)
{
    memory_region_init_ram(&s->ram, NULL, "ram", ram_size, &error_abort);
    memory_region_add_subregion(get_system_memory(), 0, &s->ram);
    vmstate_register_ram_global(&s->ram);
}

static void digic4_board_init(DigicBoard *board)
{
    Error *err = NULL;

    DigicBoardState *s = g_new(DigicBoardState, 1);

    s->digic = DIGIC(object_new(TYPE_DIGIC));
    object_property_set_bool(OBJECT(s->digic), true, "realized", &err);
    if (err != NULL) {
        error_report("Couldn't realize DIGIC SoC: %s\n",
                     error_get_pretty(err));
        exit(1);
    }

    digic4_board_setup_ram(s, board->ram_size);

    if (board->add_rom0) {
        board->add_rom0(s, DIGIC4_ROM0_BASE, board->rom0_def_filename);
    }

    if (board->add_rom1) {
        board->add_rom1(s, DIGIC4_ROM1_BASE, board->rom1_def_filename);
    }
}

static void digic_load_rom(DigicBoardState *s, hwaddr addr,
                           hwaddr max_size, const char *def_filename)
{
    target_long rom_size;
    const char *filename;

    if (qtest_enabled()) {
        /* qtest runs no code so don't attempt a ROM load which
         * could fail and result in a spurious test failure.
         */
        return;
    }

    if (bios_name) {
        filename = bios_name;
    } else {
        filename = def_filename;
    }

    if (filename) {
        char *fn = qemu_find_file(QEMU_FILE_TYPE_BIOS, filename);

        if (!fn) {
            error_report("Couldn't find rom image '%s'.\n", filename);
            exit(1);
        }

        rom_size = load_image_targphys(fn, addr, max_size);
        if (rom_size < 0 || rom_size > max_size) {
            error_report("Couldn't load rom image '%s'.\n", filename);
            exit(1);
        }
    }
}

/*
 * Samsung K8P3215UQB
 * 64M Bit (4Mx16) Page Mode / Multi-Bank NOR Flash Memory
 */
static void digic4_add_k8p3215uqb_rom(DigicBoardState *s, hwaddr addr,
                                      const char *def_filename)
{
#define FLASH_K8P3215UQB_SIZE (4 * 1024 * 1024)
#define FLASH_K8P3215UQB_SECTOR_SIZE (64 * 1024)

    pflash_cfi02_register(addr, NULL, "pflash", FLASH_K8P3215UQB_SIZE,
                          NULL, FLASH_K8P3215UQB_SECTOR_SIZE,
                          FLASH_K8P3215UQB_SIZE / FLASH_K8P3215UQB_SECTOR_SIZE,
                          DIGIC4_ROM_MAX_SIZE / FLASH_K8P3215UQB_SIZE,
                          4,
                          0x00EC, 0x007E, 0x0003, 0x0001,
                          0x0555, 0x2aa, 0);

    digic_load_rom(s, addr, FLASH_K8P3215UQB_SIZE, def_filename);
}

static DigicBoard digic4_board_canon_a1100 = {
    .ram_size = 64 * 1024 * 1024,
    .add_rom1 = digic4_add_k8p3215uqb_rom,
    .rom1_def_filename = "canon-a1100-rom1.bin",
};

static void canon_a1100_init(MachineState *machine)
{
    digic4_board_init(&digic4_board_canon_a1100);
}

static QEMUMachine canon_a1100 = {
    .name = "canon-a1100",
    .desc = "Canon PowerShot A1100 IS",
    .init = &canon_a1100_init,
};

static void digic_register_machines(void)
{
    qemu_register_machine(&canon_a1100);
}

machine_init(digic_register_machines)