| Message ID | 20210311135539.10206-4-niteesh.gs@gmail.com |
|---|---|
| State | New |
| Headers | show |
| Series | AVR GPIO Emulation and Arduino D13 LED | expand |
On 3/11/21 2:55 PM, G S Niteesh Babu wrote: > Signed-off-by: G S Niteesh Babu <niteesh.gs@gmail.com> > --- > hw/avr/Kconfig | 1 + > hw/avr/arduino.c | 15 +++++++++++++++ > 2 files changed, 16 insertions(+) > > diff --git a/hw/avr/Kconfig b/hw/avr/Kconfig > index 16a57ced11..e0d4fc5537 100644 > --- a/hw/avr/Kconfig > +++ b/hw/avr/Kconfig > @@ -8,3 +8,4 @@ config AVR_ATMEGA_MCU > config ARDUINO > select AVR_ATMEGA_MCU > select UNIMP > + select LED > diff --git a/hw/avr/arduino.c b/hw/avr/arduino.c > index 3c8388490d..5cdba3201c 100644 > --- a/hw/avr/arduino.c > +++ b/hw/avr/arduino.c > @@ -13,6 +13,7 @@ > #include "qemu/osdep.h" > #include "qapi/error.h" > #include "hw/boards.h" > +#include "hw/misc/led.h" > #include "atmega.h" > #include "boot.h" > #include "qom/object.h" > @@ -22,6 +23,8 @@ struct ArduinoMachineState { > MachineState parent_obj; > /*< public >*/ > AtmegaMcuState mcu; > + > + LEDState *onboard_led; > }; > typedef struct ArduinoMachineState ArduinoMachineState; > > @@ -49,6 +52,18 @@ static void arduino_machine_init(MachineState *machine) > amc->xtal_hz, &error_abort); > sysbus_realize(SYS_BUS_DEVICE(&ams->mcu), &error_abort); > > + ams->onboard_led = led_create_simple(OBJECT(ams), > + GPIO_POLARITY_ACTIVE_HIGH, > + LED_COLOR_BLUE, > + "D13 LED"); > + > + /* TODO: Add macro or function to map pins to ports */ > + /* The onboard led is connected to PIN 13 in all boards currently supported Yes, > + * in QEMU. And PIN 13 is mapped to PORT B BIT 5. No. Only on the Duemilanove / UNO. On both Mega it is bit 7. > + */ > + qdev_connect_gpio_out(DEVICE(&ams->mcu.gpio[1]), 5, > + qdev_get_gpio_in(DEVICE(ams->onboard_led), 0)); > + > if (machine->firmware) { > if (!avr_load_firmware(&ams->mcu.cpu, machine, > &ams->mcu.flash, machine->firmware)) { >
diff --git a/hw/avr/Kconfig b/hw/avr/Kconfig index 16a57ced11..e0d4fc5537 100644 --- a/hw/avr/Kconfig +++ b/hw/avr/Kconfig @@ -8,3 +8,4 @@ config AVR_ATMEGA_MCU config ARDUINO select AVR_ATMEGA_MCU select UNIMP + select LED diff --git a/hw/avr/arduino.c b/hw/avr/arduino.c index 3c8388490d..5cdba3201c 100644 --- a/hw/avr/arduino.c +++ b/hw/avr/arduino.c @@ -13,6 +13,7 @@ #include "qemu/osdep.h" #include "qapi/error.h" #include "hw/boards.h" +#include "hw/misc/led.h" #include "atmega.h" #include "boot.h" #include "qom/object.h" @@ -22,6 +23,8 @@ struct ArduinoMachineState { MachineState parent_obj; /*< public >*/ AtmegaMcuState mcu; + + LEDState *onboard_led; }; typedef struct ArduinoMachineState ArduinoMachineState; @@ -49,6 +52,18 @@ static void arduino_machine_init(MachineState *machine) amc->xtal_hz, &error_abort); sysbus_realize(SYS_BUS_DEVICE(&ams->mcu), &error_abort); + ams->onboard_led = led_create_simple(OBJECT(ams), + GPIO_POLARITY_ACTIVE_HIGH, + LED_COLOR_BLUE, + "D13 LED"); + + /* TODO: Add macro or function to map pins to ports */ + /* The onboard led is connected to PIN 13 in all boards currently supported + * in QEMU. And PIN 13 is mapped to PORT B BIT 5. + */ + qdev_connect_gpio_out(DEVICE(&ams->mcu.gpio[1]), 5, + qdev_get_gpio_in(DEVICE(ams->onboard_led), 0)); + if (machine->firmware) { if (!avr_load_firmware(&ams->mcu.cpu, machine, &ams->mcu.flash, machine->firmware)) {
Signed-off-by: G S Niteesh Babu <niteesh.gs@gmail.com> --- hw/avr/Kconfig | 1 + hw/avr/arduino.c | 15 +++++++++++++++ 2 files changed, 16 insertions(+)