Commit Graph

7 Commits

Author SHA1 Message Date
Virgil Dupras 1bcceb949c blockdev: add Tell and fix blkGetCW
Calling on blkGetC repeatedly was somehow very unstable and often
failed. I didn't pinpoint exactly why, but keeping the call addr around
and calling that instead seems like a better idea anyway.
2019-04-22 17:15:59 -04:00
Virgil Dupras b4694225c5 blockdev: change GetC API
Instead of waiting, GetC always return immediately, with Z indicating if
something was fetched. The "wait" loop is implemented by the called (and
in the new `blkGetCW`).

This simplifies out-of-bounds verifications for storage blockdevs.
2019-04-22 14:26:16 -04:00
Virgil Dupras 21eb64f751 blockdev: remove one layer of indirection
The approach used for shell extra commands also works for blockdev. Much
simpler and tighter this way.
2019-04-16 10:17:25 -04:00
Virgil Dupras a27da6f41a add mmap part
This also introduces the "seek" shell command.
2019-04-16 08:36:26 -04:00
Virgil Dupras ce49fc15d0 blockdev: reorganize routine pointers
Also, add dummy seek reoutine.
2019-04-15 21:56:15 -04:00
Virgil Dupras c996da8ac8 shell: add error codes to cmds 2019-04-15 20:38:25 -04:00
Virgil Dupras 12c23f52e0 Add blockdev part
Also, add the ability for parts to define extra shell commands.
2019-04-15 16:53:11 -04:00