Added latency time for the "implied seek" of read/write/format commands. Both
features can be used when asynchronous packet handling is available. Some
related changes in the non-async read and write code.
- Added missing update of the write protection flag after runtime config.
- Added sense codes for invalid cases of some commands.
- Added buffer pointer save/restore handling and use BXRS macros now.
It can be used when asynchronous packet handling is available. Some changes in
the non-async read and write code.
TODO: sector write timing, seek timing (similar to legacy floppy).
- deactivate seek timer when operation is cancelled.
- set async packet mode with a separate method at connection time.
- renamed some variables and prepared seek emulation for USB disk writes.
MSD / SCSI code.
TODO list (async packet and seek support):
- seek emulation for USB harddisk write commands
- seek emulation for floppy
- async packet support for UHCI and xHCI
- improve and clean up OHCI async packet code
- Common USB code prepared for async USB packet handling (ported from an earlier
Qemu version).
- Added simple async packet handling to OHCI (partly ported from earlier Qemu).
- Implemented USB cdrom seek emulation for hubs with async packet support. The
legacy code is still present for hubs without this feature.
- For UHCI and xHCI the callback is set to NULL to force the usage of the
legacy cdrom read code.
TODO: clean up OHCI code, async support for UHCI and xHCI, seek emulation for
USB harddisk and floppy.
- rewrite of usb_dump_packet(), execute code only if debug output is enabled.
- OHCI: removed packet dump, it should be done in the devices code if necessary.
- Add a special list to the MSD state and add pointers to the runtime-only
options for the cdrom. The restore handler of this list calls runtime_config()
to make sure the media path and status are correctly updated.
- Registering a runtime config handler for the USB cdrom is not necessary since
runtime_config() is always called from the hub it is connected to.
- Restore a string parameter value only if it's different from the initial one.
with devices conected at runtime.
- Added restore handler support for the bx_list_c class. If a handler is
registered, it will be called after restoring all of the list's members.
- USB hub: add special lists to the port state and add pointers to the
runtime-only options for each port. The restore handler of this list calls
init_device() to make sure all connected devices can be restored.
- Call restore_logopts() after restoring hardware to make sure all saved
modules have been created.
- TODO: the USB cdrom also needs a fix for it's runtime-only options.
- Removed USB device type handling from constructor and init code, since we
only the 'floppy' type here.
- Write commands now using the device buffer for one sector.
TODO: support for starting without media and runtime media change.
- The read buffer is now limited to 16 sectors and the read commands can fill
it multiple times until all sectors have been read.
- The write commands are currently not using the device buffer, so no panic
should happen here.
- bx_param_num_c: set the value returned from the handler.
- bx_param_string_c: set the new value after processing the handler.
- harddrv param handler: check lock state of cdrom and modify value if true.
