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