Add Zip drive support #428
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This adds Iomega Zip Drive 100 support. Code adapted from here BlueSCSI/BlueSCSI-v2@v2024.04.02...v2024.05.21 Still has some issues with cycling media. Co-authored-by: jokker <jokker@gmail.com> Co-authored-by: Eric Helgeson <erichelgeson@gmail.com>
Add the ability to eject and load filenames with the same prefix. For example if there are two files "zp2-a.img" and "zp2-b.img" Them machine will boot with "zp2-a.img" and when ejected will load "zp2-b.img". It will loop back to "zp2-a.img" when ejected for a second time. Ejecting zip drives works both in Linux and Mac OS 7. With debug on a v1.2 there was a timeout on a write. Did not occur with debug off.
Moved a pair of static functions above the functions that called them. Freed up more SRAM for the DaynaPORT build from the prefetch buffer. Added the device type number for Zip100 drives to the sample `zuluscsi.ini`.
There is basic messaging around using an eject button for removable drives. On board with I2C can be hijacked for Eject GPIOs or with the v1.2 the is an eject button. This will list the devices that the eject button(s) are hooked into or messaging about where to look up instructions for setting up eject buttons.
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This adds Iomega Zip Drive 100 support.
Code adapted from here BlueSCSI/BlueSCSI-v2@v2024.04.02...v2024.05.21 Still has some issues with cycling media.