hw/avr/arduino.c

   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     /* https://www.arduino.cc/en/Main/ArduinoBoardDuemilanove */
  79     mc->desc        = "Arduino Duemilanove (ATmega168)",
  80     mc->alias       = "2009";
  81     amc->mcu_type   = TYPE_ATMEGA168_MCU;
  82     amc->xtal_hz    = 16 * 1000 * 1000;
  83 };
  84
  85 static void arduino_uno_class_init(ObjectClass *oc, void *data)
  86 {
  87     MachineClass *mc = MACHINE_CLASS(oc);
  88     ArduinoMachineClass *amc = ARDUINO_MACHINE_CLASS(oc);
  89
  90     /* https://store.arduino.cc/arduino-uno-rev3 */
  91     mc->desc        = "Arduino UNO (ATmega328P)";
  92     mc->alias       = "uno";
  93     amc->mcu_type   = TYPE_ATMEGA328_MCU;
  94     amc->xtal_hz    = 16 * 1000 * 1000;
  95 };
  96
  97 static void arduino_mega_class_init(ObjectClass *oc, void *data)
  98 {
  99     MachineClass *mc = MACHINE_CLASS(oc);
 100     ArduinoMachineClass *amc = ARDUINO_MACHINE_CLASS(oc);
 101
 102     /* https://www.arduino.cc/en/Main/ArduinoBoardMega */
 103     mc->desc        = "Arduino Mega (ATmega1280)";
 104     mc->alias       = "mega";
 105     amc->mcu_type   = TYPE_ATMEGA1280_MCU;
 106     amc->xtal_hz    = 16 * 1000 * 1000;
 107 };
 108
 109 static void arduino_mega2560_class_init(ObjectClass *oc, void *data)
 110 {
 111     MachineClass *mc = MACHINE_CLASS(oc);
 112     ArduinoMachineClass *amc = ARDUINO_MACHINE_CLASS(oc);
 113
 114     /* https://store.arduino.cc/arduino-mega-2560-rev3 */
 115     mc->desc        = "Arduino Mega 2560 (ATmega2560)";
 116     mc->alias       = "mega2560";
 117     amc->mcu_type   = TYPE_ATMEGA2560_MCU;
 118     amc->xtal_hz    = 16 * 1000 * 1000; /* CSTCE16M0V53-R0 */
 119 };
 120
 121 static const TypeInfo arduino_machine_types[] = {
 122     {
 123         .name          = MACHINE_TYPE_NAME("arduino-duemilanove"),
 124         .parent        = TYPE_ARDUINO_MACHINE,
 125         .class_init    = arduino_duemilanove_class_init,
 126     }, {
 127         .name          = MACHINE_TYPE_NAME("arduino-uno"),
 128         .parent        = TYPE_ARDUINO_MACHINE,
 129         .class_init    = arduino_uno_class_init,
 130     }, {
 131         .name          = MACHINE_TYPE_NAME("arduino-mega"),
 132         .parent        = TYPE_ARDUINO_MACHINE,
 133         .class_init    = arduino_mega_class_init,
 134     }, {
 135         .name          = MACHINE_TYPE_NAME("arduino-mega-2560-v3"),
 136         .parent        = TYPE_ARDUINO_MACHINE,
 137         .class_init    = arduino_mega2560_class_init,
 138     }, {
 139         .name           = TYPE_ARDUINO_MACHINE,
 140         .parent         = TYPE_MACHINE,
 141         .instance_size  = sizeof(ArduinoMachineState),
 142         .class_size     = sizeof(ArduinoMachineClass),
 143         .class_init     = arduino_machine_class_init,
 144         .abstract       = true,
 145     }
 146 };
 147
 148 DEFINE_TYPES(arduino_machine_types)