1 files changed, 149 insertions, 0 deletions
diff --git a/hw/arm/digic_boards.c b/hw/arm/digic_boards.c
new file mode 100644
index 000000000..b771a3d8b
--- /dev/null
+++ b/hw/arm/digic_boards.c
@@ -0,0 +1,149 @@
+/*
+ * 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 "qemu/osdep.h"
+#include "qapi/error.h"
+#include "qemu-common.h"
+#include "qemu/datadir.h"
+#include "hw/boards.h"
+#include "qemu/error-report.h"
+#include "hw/arm/digic.h"
+#include "hw/block/flash.h"
+#include "hw/loader.h"
+#include "sysemu/qtest.h"
+#include "qemu/units.h"
+#include "qemu/cutils.h"
+
+#define DIGIC4_ROM0_BASE      0xf0000000
+#define DIGIC4_ROM1_BASE      0xf8000000
+#define DIGIC4_ROM_MAX_SIZE   0x08000000
+
+typedef struct DigicBoard {
+    void (*add_rom0)(DigicState *, hwaddr, const char *);
+    const char *rom0_def_filename;
+    void (*add_rom1)(DigicState *, hwaddr, const char *);
+    const char *rom1_def_filename;
+} DigicBoard;
+
+static void digic4_board_init(MachineState *machine, DigicBoard *board)
+{
+    Error *err = NULL;
+    DigicState *s = DIGIC(object_new(TYPE_DIGIC));
+    MachineClass *mc = MACHINE_GET_CLASS(machine);
+
+    if (machine->ram_size != mc->default_ram_size) {
+        char *sz = size_to_str(mc->default_ram_size);
+        error_report("Invalid RAM size, should be %s", sz);
+        g_free(sz);
+        exit(EXIT_FAILURE);
+    }
+
+    if (!qdev_realize(DEVICE(s), NULL, &err)) {
+        error_reportf_err(err, "Couldn't realize DIGIC SoC: ");
+        exit(1);
+    }
+
+    memory_region_add_subregion(get_system_memory(), 0, machine->ram);
+
+    if (board->add_rom0) {
+        board->add_rom0(s, DIGIC4_ROM0_BASE,
+                        machine->firmware ?: board->rom0_def_filename);
+    }
+
+    if (board->add_rom1) {
+        board->add_rom1(s, DIGIC4_ROM1_BASE,
+                        machine->firmware ?: board->rom1_def_filename);
+    }
+}
+
+static void digic_load_rom(DigicState *s, hwaddr addr,
+                           hwaddr max_size, const char *filename)
+{
+    target_long rom_size;
+
+    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 (filename) {
+        char *fn = qemu_find_file(QEMU_FILE_TYPE_BIOS, filename);
+
+        if (!fn) {
+            error_report("Couldn't find rom image '%s'.", 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'.", filename);
+            exit(1);
+        }
+        g_free(fn);
+    }
+}
+
+/*
+ * Samsung K8P3215UQB
+ * 64M Bit (4Mx16) Page Mode / Multi-Bank NOR Flash Memory
+ */
+static void digic4_add_k8p3215uqb_rom(DigicState *s, hwaddr addr,
+                                      const char *filename)
+{
+#define FLASH_K8P3215UQB_SIZE (4 * 1024 * 1024)
+#define FLASH_K8P3215UQB_SECTOR_SIZE (64 * 1024)
+
+    pflash_cfi02_register(addr, "pflash", FLASH_K8P3215UQB_SIZE,
+                          NULL, 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, filename);
+}
+
+static DigicBoard digic4_board_canon_a1100 = {
+    .add_rom1 = digic4_add_k8p3215uqb_rom,
+    .rom1_def_filename = "canon-a1100-rom1.bin",
+};
+
+static void canon_a1100_init(MachineState *machine)
+{
+    digic4_board_init(machine, &digic4_board_canon_a1100);
+}
+
+static void canon_a1100_machine_init(MachineClass *mc)
+{
+    mc->desc = "Canon PowerShot A1100 IS (ARM946)";
+    mc->init = &canon_a1100_init;
+    mc->ignore_memory_transaction_failures = true;
+    mc->default_ram_size = 64 * MiB;
+    mc->default_ram_id = "ram";
+}
+
+DEFINE_MACHINE("canon-a1100", canon_a1100_machine_init)