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[PATCH 3/3] avr/arduino: Add D13 LED
From: |
G S Niteesh Babu |
Subject: |
[PATCH 3/3] avr/arduino: Add D13 LED |
Date: |
Thu, 11 Mar 2021 19:25:39 +0530 |
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
+ * 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)) {
--
2.17.1