Arduino boards are build with AVR chipsets. Add some of the popular boards:
- Arduino Duemilanove - Arduino Uno - Arduino Mega For more information: https://www.arduino.cc/en/Main/Products https://store.arduino.cc/arduino-genuino/most-popular Signed-off-by: Philippe Mathieu-Daudé <f4...@amsat.org> --- v2: - Reword description adding more information (Aleksandar) - Use DEFINE_TYPES (Igor) Cc: Phillip Stevens <phillip.stev...@gmail.com> (for FreeRTOS example) Cc: Igor Mammedov <imamm...@redhat.com> --- hw/avr/arduino.c | 177 +++++++++++++++++++++++++++++++++++++++++++ hw/avr/Makefile.objs | 1 + 2 files changed, 178 insertions(+) create mode 100644 hw/avr/arduino.c diff --git a/hw/avr/arduino.c b/hw/avr/arduino.c new file mode 100644 index 0000000000..ecaaa295d8 --- /dev/null +++ b/hw/avr/arduino.c @@ -0,0 +1,177 @@ +/* + * QEMU Arduino boards + * + * Copyright (c) 2019 Philippe Mathieu-Daudé + * + * This work is licensed under the terms of the GNU GPLv2 or later. + * See the COPYING file in the top-level directory. + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +/* TODO: Implement the use of EXTRAM */ + +#include "qemu/osdep.h" +#include "qemu-common.h" +#include "qapi/error.h" +#include "hw/boards.h" +#include "hw/loader.h" +#include "elf.h" +#include "atmega.h" + +typedef struct ArduinoMachineState { + /*< private >*/ + MachineState parent_obj; + /*< public >*/ + AtmegaMcuState mcu; + MemoryRegion extram; +} ArduinoMachineState; + +typedef struct ArduinoMachineClass { + /*< private >*/ + MachineClass parent_class; + /*< public >*/ + const char *mcu_type; + uint64_t xtal_hz; + size_t extram_size; +} ArduinoMachineClass; + +#define TYPE_ARDUINO_MACHINE \ + MACHINE_TYPE_NAME("arduino") +#define ARDUINO_MACHINE(obj) \ + OBJECT_CHECK(ArduinoMachineState, (obj), TYPE_ARDUINO_MACHINE) +#define ARDUINO_MACHINE_CLASS(klass) \ + OBJECT_CLASS_CHECK(ArduinoMachineClass, (klass), TYPE_ARDUINO_MACHINE) +#define ARDUINO_MACHINE_GET_CLASS(obj) \ + OBJECT_GET_CLASS(ArduinoMachineClass, (obj), TYPE_ARDUINO_MACHINE) + +static void load_firmware(const char *firmware, uint64_t flash_size) +{ + const char *filename; + int bytes_loaded; + + /* Load firmware (contents of flash) trying to auto-detect format */ + filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, firmware); + if (filename == NULL) { + error_report("Unable to find %s", firmware); + exit(1); + } + + bytes_loaded = load_elf(filename, NULL, NULL, NULL, NULL, NULL, NULL, + 0, EM_NONE, 0, 0); + if (bytes_loaded < 0) { + bytes_loaded = load_image_targphys(filename, OFFSET_CODE, flash_size); + } + if (bytes_loaded < 0) { + error_report("Unable to load firmware image %s as ELF or raw binary", + firmware); + exit(1); + } +} + +static void arduino_machine_init(MachineState *machine) +{ + ArduinoMachineClass *amc = ARDUINO_MACHINE_GET_CLASS(machine); + ArduinoMachineState *ams = ARDUINO_MACHINE(machine); + + sysbus_init_child_obj(OBJECT(machine), "mcu", &ams->mcu, sizeof(ams->mcu), + amc->mcu_type); + object_property_set_uint(OBJECT(&ams->mcu), amc->xtal_hz, + "xtal-frequency-hz", &error_abort); + object_property_set_bool(OBJECT(&ams->mcu), true, "realized", + &error_abort); + + if (machine->firmware) { + load_firmware(machine->firmware, memory_region_size(&ams->mcu.flash)); + } +} + +static void arduino_machine_class_init(ObjectClass *oc, void *data) +{ + MachineClass *mc = MACHINE_CLASS(oc); + + mc->init = arduino_machine_init; + mc->default_cpus = 1; + mc->min_cpus = mc->default_cpus; + mc->max_cpus = mc->default_cpus; + mc->no_floppy = 1; + mc->no_cdrom = 1; + mc->no_parallel = 1; +} + +static void arduino_duemilanove_class_init(ObjectClass *oc, void *data) +{ + MachineClass *mc = MACHINE_CLASS(oc); + ArduinoMachineClass *amc = ARDUINO_MACHINE_CLASS(oc); + + /* https://www.arduino.cc/en/Main/ArduinoBoardDuemilanove */ + mc->desc = "Arduino Duemilanove (ATmega168)", + mc->alias = "2009"; + amc->mcu_type = TYPE_ATMEGA168_MCU; + amc->xtal_hz = 16 * 1000 * 1000; +}; + +static void arduino_uno_class_init(ObjectClass *oc, void *data) +{ + MachineClass *mc = MACHINE_CLASS(oc); + ArduinoMachineClass *amc = ARDUINO_MACHINE_CLASS(oc); + + /* https://store.arduino.cc/arduino-uno-rev3 */ + mc->desc = "Arduino UNO (ATmega328P)"; + mc->alias = "uno"; + amc->mcu_type = TYPE_ATMEGA328_MCU; + amc->xtal_hz = 16 * 1000 * 1000; +}; + +static void arduino_mega_class_init(ObjectClass *oc, void *data) +{ + MachineClass *mc = MACHINE_CLASS(oc); + ArduinoMachineClass *amc = ARDUINO_MACHINE_CLASS(oc); + + /* https://www.arduino.cc/en/Main/ArduinoBoardMega */ + mc->desc = "Arduino Mega (ATmega1280)"; + mc->alias = "mega"; + amc->mcu_type = TYPE_ATMEGA1280_MCU; + amc->xtal_hz = 16 * 1000 * 1000; +}; + +static void arduino_mega2560_class_init(ObjectClass *oc, void *data) +{ + MachineClass *mc = MACHINE_CLASS(oc); + ArduinoMachineClass *amc = ARDUINO_MACHINE_CLASS(oc); + + /* https://store.arduino.cc/arduino-mega-2560-rev3 */ + mc->desc = "Arduino Mega 2560 (ATmega2560)"; + mc->alias = "mega2560"; + mc->is_default = true; + amc->mcu_type = TYPE_ATMEGA2560_MCU; + amc->xtal_hz = 16 * 1000 * 1000; /* CSTCE16M0V53-R0 */ +}; + +static const TypeInfo arduino_machine_types[] = { + { + .name = MACHINE_TYPE_NAME("arduino-duemilanove"), + .parent = TYPE_ARDUINO_MACHINE, + .class_init = arduino_duemilanove_class_init, + }, { + .name = MACHINE_TYPE_NAME("arduino-uno"), + .parent = TYPE_ARDUINO_MACHINE, + .class_init = arduino_uno_class_init, + }, { + .name = MACHINE_TYPE_NAME("arduino-mega"), + .parent = TYPE_ARDUINO_MACHINE, + .class_init = arduino_mega_class_init, + }, { + .name = MACHINE_TYPE_NAME("arduino-mega-2560-v3"), + .parent = TYPE_ARDUINO_MACHINE, + .class_init = arduino_mega2560_class_init, + }, { + .name = TYPE_ARDUINO_MACHINE, + .parent = TYPE_MACHINE, + .instance_size = sizeof(ArduinoMachineState), + .class_size = sizeof(ArduinoMachineClass), + .class_init = arduino_machine_class_init, + .abstract = true, + } +}; + +DEFINE_TYPES(arduino_machine_types) diff --git a/hw/avr/Makefile.objs b/hw/avr/Makefile.objs index 4b6b911820..39ee3c32b2 100644 --- a/hw/avr/Makefile.objs +++ b/hw/avr/Makefile.objs @@ -1,2 +1,3 @@ obj-y += sample.o obj-y += atmega.o +obj-y += arduino.o -- 2.21.0
