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[RFC,0/5] hw/misc: Add LED device

Message ID 20200609123425.6921-1-f4bug@amsat.org
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Series hw/misc: Add LED device | expand

Message

Philippe Mathieu-Daudé June 9, 2020, 12:34 p.m. UTC 
Hello,

These patches are part of the GSoC unselected 'QEMU visualizer'
project.  As the AVR port is not merged, I switched to microbit
to keep working on it.

This series presents a proof of concept of LED device that can
be easily connected to a GPIO.
The LED emit QMP events, so an external visualizer can display
the LED events.

If there is no negative opinion on this series, next step will
be add Zephyr test for the microbit, then we'll work on LED
array/matrix.

Regards,

Phil.

Philippe Mathieu-Daudé (5):
  hw/misc: Add a LED device
  hw/misc/led: Add LED_STATUS_CHANGED QAPI event
  hw/misc/led: Add create_led_by_gpio_id() helper
  hw/arm/microbit: Add a fake LED to use as proof-of-concept with Zephyr
  hw/arm/tosa: Use LED device for the Bluetooth led

 qapi/led.json         |  47 ++++++++++++++++++
 qapi/qapi-schema.json |   1 +
 include/hw/misc/led.h |  44 +++++++++++++++++
 hw/arm/microbit.c     |   3 ++
 hw/arm/tosa.c         |   7 ++-
 hw/misc/led.c         | 108 ++++++++++++++++++++++++++++++++++++++++++
 MAINTAINERS           |   7 +++
 hw/arm/Kconfig        |   2 +
 hw/misc/Kconfig       |   3 ++
 hw/misc/Makefile.objs |   1 +
 hw/misc/trace-events  |   3 ++
 qapi/Makefile.objs    |   2 +-
 12 files changed, 223 insertions(+), 5 deletions(-)
 create mode 100644 qapi/led.json
 create mode 100644 include/hw/misc/led.h
 create mode 100644 hw/misc/led.c