diff mbox

[v6,RESEND,1/5] hw/arm: add very initial support for Canon DIGIC SoC

Message ID 1386143443-5999-2-git-send-email-antonynpavlov@gmail.com
State New
Headers show

Commit Message

Antony Pavlov Dec. 4, 2013, 7:50 a.m. UTC 
DIGIC is Canon Inc.'s name for a family of SoC
for digital cameras and camcorders.

There is no publicly available specification for
DIGIC chips. All information about DIGIC chip
internals is based on reverse engineering efforts
made by CHDK (http://chdk.wikia.com) and
Magic Lantern (http://www.magiclantern.fm) projects
contributors.

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
---
 default-configs/arm-softmmu.mak |  1 +
 hw/arm/Makefile.objs            |  1 +
 hw/arm/digic.c                  | 65 +++++++++++++++++++++++++++++++++++++++++
 include/hw/arm/digic.h          | 35 ++++++++++++++++++++++
 4 files changed, 102 insertions(+)
 create mode 100644 hw/arm/digic.c
 create mode 100644 include/hw/arm/digic.h

Comments

Peter Maydell Dec. 6, 2013, 4:46 p.m. UTC | #1 
On 4 December 2013 07:50, Antony Pavlov <antonynpavlov@gmail.com> wrote:
> DIGIC is Canon Inc.'s name for a family of SoC
> for digital cameras and camcorders.
>
> There is no publicly available specification for
> DIGIC chips. All information about DIGIC chip
> internals is based on reverse engineering efforts
> made by CHDK (http://chdk.wikia.com) and
> Magic Lantern (http://www.magiclantern.fm) projects
> contributors.
>
> Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
> Reviewed-by: Andreas Färber <afaerber@suse.de>

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>

thanks
-- PMM
diff mbox

Patch

diff --git a/default-configs/arm-softmmu.mak b/default-configs/arm-softmmu.mak
index a555eef..8af72ce 100644
--- a/default-configs/arm-softmmu.mak
+++ b/default-configs/arm-softmmu.mak
@@ -63,6 +63,7 @@  CONFIG_XILINX_SPIPS=y
 
 CONFIG_ARM11SCU=y
 CONFIG_A9SCU=y
+CONFIG_DIGIC=y
 CONFIG_MARVELL_88W8618=y
 CONFIG_OMAP=y
 CONFIG_TSC210X=y
diff --git a/hw/arm/Makefile.objs b/hw/arm/Makefile.objs
index 3671b42..eb548dd 100644
--- a/hw/arm/Makefile.objs
+++ b/hw/arm/Makefile.objs
@@ -4,4 +4,5 @@  obj-y += omap_sx1.o palm.o realview.o spitz.o stellaris.o
 obj-y += tosa.o versatilepb.o vexpress.o xilinx_zynq.o z2.o
 
 obj-y += armv7m.o exynos4210.o pxa2xx.o pxa2xx_gpio.o pxa2xx_pic.o
+obj-$(CONFIG_DIGIC) += digic.o
 obj-y += omap1.o omap2.o strongarm.o
diff --git a/hw/arm/digic.c b/hw/arm/digic.c
new file mode 100644
index 0000000..0d38872
--- /dev/null
+++ b/hw/arm/digic.c
@@ -0,0 +1,65 @@ 
+/*
+ * QEMU model of the Canon DIGIC SoC.
+ *
+ * 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.
+ *
+ * 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/arm/digic.h"
+
+static void digic_init(Object *obj)
+{
+    DigicState *s = DIGIC(obj);
+
+    object_initialize(&s->cpu, sizeof(s->cpu), "arm946-" TYPE_ARM_CPU);
+    object_property_add_child(obj, "cpu", OBJECT(&s->cpu), NULL);
+}
+
+static void digic_realize(DeviceState *dev, Error **errp)
+{
+    DigicState *s = DIGIC(dev);
+    Error *err = NULL;
+
+    object_property_set_bool(OBJECT(&s->cpu), true, "realized", &err);
+    if (err != NULL) {
+        error_propagate(errp, err);
+        return;
+    }
+}
+
+static void digic_class_init(ObjectClass *oc, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(oc);
+
+    dc->realize = digic_realize;
+}
+
+static const TypeInfo digic_type_info = {
+    .name = TYPE_DIGIC,
+    .parent = TYPE_DEVICE,
+    .instance_size = sizeof(DigicState),
+    .instance_init = digic_init,
+    .class_init = digic_class_init,
+};
+
+static void digic_register_types(void)
+{
+    type_register_static(&digic_type_info);
+}
+
+type_init(digic_register_types)
diff --git a/include/hw/arm/digic.h b/include/hw/arm/digic.h
new file mode 100644
index 0000000..b7d16fb
--- /dev/null
+++ b/include/hw/arm/digic.h
@@ -0,0 +1,35 @@ 
+/*
+ * Misc Canon DIGIC declarations.
+ *
+ * Copyright (C) 2013 Antony Pavlov <antonynpavlov@gmail.com>
+ *
+ * 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.
+ *
+ */
+
+#ifndef HW_ARM_DIGIC_H
+#define HW_ARM_DIGIC_H
+
+#include "cpu.h"
+
+#define TYPE_DIGIC "digic"
+
+#define DIGIC(obj) OBJECT_CHECK(DigicState, (obj), TYPE_DIGIC)
+
+typedef struct DigicState {
+    /*< private >*/
+    DeviceState parent_obj;
+    /*< public >*/
+
+    ARMCPU cpu;
+} DigicState;
+
+#endif /* HW_ARM_DIGIC_H */