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