Some devices already had one. Some I had to add an empty one.
I did a little cleaning of init() methods to make them more uniform
but generally I left them alone.
- I also put these exact diffs into a patch "patch.iodev-add-reset"
in case I want to revert these changes for some reason, for example
if they break an old patch. It should be deleted after a while.
to "*_ENABLED"
- bx_serial_options for all 4 ports moved into an array com[4]
- serial port com1 is enabled by default
- detection of com2, com3 and com4 config options disabled for now
- new parameter "enabled" added to the serial bochsrc options
- error handling for serial and parallel bochsrc options changed. The unhandled
BX_PANICs are replaced by BX_ERRORs.
- new function bx_write_serial_options() added
- serial destructor restores original terminal settings only when serial port
is enabled and the tty_id is valid
parport1 with the new option "enabled". The old option "enable" only
controlled the output. The parport1 is enabled with no output by default.
Changes:
* bochrc option "enable" replaced by "enabled"
* parport option "Oenable" replaced by "Opresent"
* bx_parport_options par1 and par2 replaced by an array par[2]
* initialize parport1 resources only when enabled
* renamed variable "parport_init_list" to "par_ser_init_list" since it
contains parport and serial options
* documentation and bochsrc updates
- the parport variables "output" and "initmode" now belong to the bx_par_t
structure
- TODO: add parport2 (disabled by default), parport detection in the bios
- PCI configuration space of the host bridge renamed from array[] to pci_conf[]
- new functions load_ROM() and mem_read() for ROM access
- macros for PCI functions defined in bochs.h
more work in the floppy and bios code.
- floppy and cdrom entries in the runtime config menu can be disabled if the
drive wasn't defined in bochsrc or start menu
- floppy variable "initial_status" and cdrom variable "inserted" renamed to
"status"
- unused variable *ips in function build_runtime_options_prompt() disabled
* new floppy type 360k can be used in .bochsrc and the config interface
* media type and geometry can be set for the floppy type
* BIOS changes to make 360k floppy drives work
* bximage can create 360k images now
and works okay with one rom track only. We still have to implement reading
the real TOC on win32.
- in function GetCDCapacity(): type of variable 'buf[8]' must be 'unsigned char'
- in function capacity(): win32 version returned the number of bytes, but it
should return the number of blocks (ASPI blocksize is 2352)
- description of the function capacity() fixed (it always returns blocks)
controller returns an error code until we are able to implement this feature.
- init_send_atapi_command(): don't panic if alloc_length is 0, use byte_count
to set alloc_length instead
- fixed a BX_PANIC message in the io write handler for port 0x1f0
- init(): set the initial status to BX_EJECTED if evaluate_media() fails
- don't modify the DOR when a drive > 1 is selected
- floppy command 'get status' now recognizes the head field
- floppy command 'recalibrate': don't set cylinder to 0 before completion
- floppy command 'sense interupt status' does not clear status register 0
- floppy command 'configure': more detailed BX_DEBUG messages
- floppy command 'read ID' does not modify status register 0
- floppy read/write commands: set the error bit in status register 0 if media
is not present
- better detection of not existing drives in some commands: check the media type
of the selected drive instead of the drive select value
- behaviour of floppy commands 'recalibrate' and 'seek' changed:
* drive is busy in the execution phase, but not the controller
* replaced the panic by setting the error status if drive is not existing
- evaluate_media(): set the media type even if device/file is not present
DMA functions defined. Most of the changes are based on the "bochs sync"
version of plex86. Here is the list of changes:
* register/unregister functions for DMA channels added. The DMA controller
can use the DMA read/write handlers of registered devices directly.
* "hardwired" code in dma.cc removed
* all DMA related code in devices.cc and iodev.h removed
* DMA related code in pc_system.* removed except HRQ handling
* macros for DMA functions defined in bochs.h
* floppy and SB16 code modified to use the changes described above
