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fwupd/plugins/altos
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Richard Hughes 4a036018f7 Set the progress and state on the FuDevice, not the FuPlugin 
This makes more sense; we're updating the device, not the plugin itself.

This also means we don't need to funnel everything through callbacks like
GFileProgressCallback and we can also update the state without adding an
explicit callback to each derived device type.
2017-11-30 20:51:52 +00:00
..
data Add support for flashing the ChaosKey 2017-01-09 12:21:35 +00:00
fu-altos-device.c Set the progress and state on the FuDevice, not the FuPlugin 2017-11-30 20:51:52 +00:00
fu-altos-device.h Set the progress and state on the FuDevice, not the FuPlugin 2017-11-30 20:51:52 +00:00
fu-altos-firmware.c Remove the ELF support from libdfu and move the code to the altos plugin 2017-09-07 18:39:23 +01:00
fu-altos-firmware.h Remove the ELF support from libdfu and move the code to the altos plugin 2017-09-07 18:39:23 +01:00
fu-altos-tool.c Set the progress and state on the FuDevice, not the FuPlugin 2017-11-30 20:51:52 +00:00
fu-plugin-altos.c Set the progress and state on the FuDevice, not the FuPlugin 2017-11-30 20:51:52 +00:00
meson.build altos: Rename FuDeviceAltos to FuAltosDevice 2017-11-13 13:58:37 +00:00
README.md Add support for flashing the ChaosKey 2017-01-09 12:21:35 +00:00

README.md

Altos Support

Introduction

Altos is a 8051 operating system for Altus-Metrum projects. The ChaosKey is a hardware random number generator that attaches via USB.

When the ChaosKey when inserted it appears as a device handled by the kernel with VID 0x1d50 and PID 0x60c6. If pins 1 and 5 are shorted as the device is connected then the bootloader is run, which presents VID 0xfffe and PID 0x000a.

The bootloader communication is not handled in the kernel, and a tty device is created so userspace can communicate with the hardware. Commands the bootloader accept are as follows:

List Information

Command: l\n Several lines of text about the device are transferred to the host, e.g.

altos-loader
manufacturer     altusmetrum.org
product          AltosFlash
flash-range      08001000 08008000
software-version 1.6.8

There doesn't appear to be any kind of end-of-message signal.

Read Flash

Command: R $addr\n where $addr is a memory address 0x8001000->0x8008000. 256 bytes of raw data are then transferred to the host.

Write Flash

Command: W $addr\n where $addr is a memory address 0x8001000->0x8008000. 256 bytes of raw data are then transferred to the device.

Application Mode

Command: v\n The device will reboot into application mode. This is typically performed after flashing firmware completes successfully.