1 /* 2 * QEMU Arduino boards 3 * 4 * Copyright (c) 2019-2020 Philippe Mathieu-Daudé 5 * 6 * This work is licensed under the terms of the GNU GPLv2 or later. 7 * See the COPYING file in the top-level directory. 8 * SPDX-License-Identifier: GPL-2.0-or-later 9 */ 10 11 /* TODO: Implement the use of EXTRAM */ 12 13 #include "qemu/osdep.h" 14 #include "qapi/error.h" 15 #include "hw/boards.h" 16 #include "atmega.h" 17 #include "boot.h" 18 #include "qom/object.h" 19 20 struct ArduinoMachineState { 21 /*< private >*/ 22 MachineState parent_obj; 23 /*< public >*/ 24 AtmegaMcuState mcu; 25 }; 26 typedef struct ArduinoMachineState ArduinoMachineState; 27 28 struct ArduinoMachineClass { 29 /*< private >*/ 30 MachineClass parent_class; 31 /*< public >*/ 32 const char *mcu_type; 33 uint64_t xtal_hz; 34 }; 35 typedef struct ArduinoMachineClass ArduinoMachineClass; 36 37 #define TYPE_ARDUINO_MACHINE \ 38 MACHINE_TYPE_NAME("arduino") 39 DECLARE_OBJ_CHECKERS(ArduinoMachineState, ArduinoMachineClass, 40 ARDUINO_MACHINE, TYPE_ARDUINO_MACHINE) 41 42 static void arduino_machine_init(MachineState *machine) 43 { 44 ArduinoMachineClass *amc = ARDUINO_MACHINE_GET_CLASS(machine); 45 ArduinoMachineState *ams = ARDUINO_MACHINE(machine); 46 47 object_initialize_child(OBJECT(machine), "mcu", &ams->mcu, amc->mcu_type); 48 object_property_set_uint(OBJECT(&ams->mcu), "xtal-frequency-hz", 49 amc->xtal_hz, &error_abort); 50 sysbus_realize(SYS_BUS_DEVICE(&ams->mcu), &error_abort); 51 52 if (machine->firmware) { 53 if (!avr_load_firmware(&ams->mcu.cpu, machine, 54 &ams->mcu.flash, machine->firmware)) { 55 exit(1); 56 } 57 } 58 } 59 60 static void arduino_machine_class_init(ObjectClass *oc, void *data) 61 { 62 MachineClass *mc = MACHINE_CLASS(oc); 63 64 mc->init = arduino_machine_init; 65 mc->default_cpus = 1; 66 mc->min_cpus = mc->default_cpus; 67 mc->max_cpus = mc->default_cpus; 68 mc->no_floppy = 1; 69 mc->no_cdrom = 1; 70 mc->no_parallel = 1; 71 } 72 73 static void arduino_duemilanove_class_init(ObjectClass *oc, void *data) 74 { 75 MachineClass *mc = MACHINE_CLASS(oc); 76 ArduinoMachineClass *amc = ARDUINO_MACHINE_CLASS(oc); 77 78 /* 79 * https://www.arduino.cc/en/Main/ArduinoBoardDuemilanove 80 * https://www.arduino.cc/en/uploads/Main/arduino-duemilanove-schematic.pdf 81 */ 82 mc->desc = "Arduino Duemilanove (ATmega168)", 83 mc->alias = "2009"; 84 amc->mcu_type = TYPE_ATMEGA168_MCU; 85 amc->xtal_hz = 16 * 1000 * 1000; 86 }; 87 88 static void arduino_uno_class_init(ObjectClass *oc, void *data) 89 { 90 MachineClass *mc = MACHINE_CLASS(oc); 91 ArduinoMachineClass *amc = ARDUINO_MACHINE_CLASS(oc); 92 93 /* 94 * https://store.arduino.cc/arduino-uno-rev3 95 * https://www.arduino.cc/en/uploads/Main/arduino-uno-schematic.pdf 96 */ 97 mc->desc = "Arduino UNO (ATmega328P)"; 98 mc->alias = "uno"; 99 amc->mcu_type = TYPE_ATMEGA328_MCU; 100 amc->xtal_hz = 16 * 1000 * 1000; 101 }; 102 103 static void arduino_mega_class_init(ObjectClass *oc, void *data) 104 { 105 MachineClass *mc = MACHINE_CLASS(oc); 106 ArduinoMachineClass *amc = ARDUINO_MACHINE_CLASS(oc); 107 108 /* 109 * https://www.arduino.cc/en/Main/ArduinoBoardMega 110 * https://www.arduino.cc/en/uploads/Main/arduino-mega2560-schematic.pdf 111 */ 112 mc->desc = "Arduino Mega (ATmega1280)"; 113 mc->alias = "mega"; 114 amc->mcu_type = TYPE_ATMEGA1280_MCU; 115 amc->xtal_hz = 16 * 1000 * 1000; 116 }; 117 118 static void arduino_mega2560_class_init(ObjectClass *oc, void *data) 119 { 120 MachineClass *mc = MACHINE_CLASS(oc); 121 ArduinoMachineClass *amc = ARDUINO_MACHINE_CLASS(oc); 122 123 /* 124 * https://store.arduino.cc/arduino-mega-2560-rev3 125 * https://www.arduino.cc/en/uploads/Main/arduino-mega2560_R3-sch.pdf 126 */ 127 mc->desc = "Arduino Mega 2560 (ATmega2560)"; 128 mc->alias = "mega2560"; 129 amc->mcu_type = TYPE_ATMEGA2560_MCU; 130 amc->xtal_hz = 16 * 1000 * 1000; /* CSTCE16M0V53-R0 */ 131 }; 132 133 static const TypeInfo arduino_machine_types[] = { 134 { 135 .name = MACHINE_TYPE_NAME("arduino-duemilanove"), 136 .parent = TYPE_ARDUINO_MACHINE, 137 .class_init = arduino_duemilanove_class_init, 138 }, { 139 .name = MACHINE_TYPE_NAME("arduino-uno"), 140 .parent = TYPE_ARDUINO_MACHINE, 141 .class_init = arduino_uno_class_init, 142 }, { 143 .name = MACHINE_TYPE_NAME("arduino-mega"), 144 .parent = TYPE_ARDUINO_MACHINE, 145 .class_init = arduino_mega_class_init, 146 }, { 147 .name = MACHINE_TYPE_NAME("arduino-mega-2560-v3"), 148 .parent = TYPE_ARDUINO_MACHINE, 149 .class_init = arduino_mega2560_class_init, 150 }, { 151 .name = TYPE_ARDUINO_MACHINE, 152 .parent = TYPE_MACHINE, 153 .instance_size = sizeof(ArduinoMachineState), 154 .class_size = sizeof(ArduinoMachineClass), 155 .class_init = arduino_machine_class_init, 156 .abstract = true, 157 } 158 }; 159 160 DEFINE_TYPES(arduino_machine_types) 161