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")
DECLARE_OBJ_CHECKERS(ArduinoMachineState,ArduinoMachineClass,ARDUINO_MACHINE,TYPE_ARDUINO_MACHINE)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
arduino_machine_class_init(ObjectClass * oc,void * data)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
arduino_duemilanove_class_init(ObjectClass * oc,void * data)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
arduino_uno_class_init(ObjectClass * oc,void * data)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
arduino_mega_class_init(ObjectClass * oc,void * data)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
arduino_mega2560_class_init(ObjectClass * oc,void * data)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