Commit Graph

19 Commits

Author SHA1 Message Date
enami 67e874d814 Allow to detach wdc, atapibus, wd and cd. 1999-09-23 11:04:29 +00:00
bouyer 26db0bba90 Garbage-collect C_INUSE and C_NEEDDONE. 1999-08-09 09:56:00 +00:00
bouyer 503de51fdd Fix probe code for IDE devices:
- Don't rely on ATA signature: some ide controllers seems to not transmit it
  properly (SIMIDE on arm32 machines). Instead, when we guess a drive is here
  after reset, just mark it as ATA and OLD is it's not ATAPI.
- at attach time, use IDENTIFY to eliminate ghost from the probe. If the
  drive had the old flag and IDENTIFY failed, issue a WDCC_RECAL command
  to detect a pre-ATA disk. If IDENTIFY succeded, remove the OLD flag,
  it's obviously not a pre-ATA disk.
- add a new controller flag, WDC_CAPABILITY_PREATA, used to shorcut parts
  of the probe (not necessary, but makes the probe/attach faster). This is
  only set by the ISA front-end, all other controllers supported can't have
  pre-ATA drives attached.
The mechanism used are more or less the same as before, they have just been
reordered. Should solve port-arm32/7324 (waiting for feedback).
1999-04-11 20:50:28 +00:00
bouyer b43b844f6f - change the interrupt routines to take a 3rd arguments, set to 1 if we
are called from the interrupt or timeout handler, 0 otherwise.
- use this to know if we can busy-wait for wait_for_unbusy or wait_for_ready
This fixes a bug where CDs withot the DRQ_INTR capability would not busy-wait
for the CMDOUT phase.
While I'm there change 2 delay() to DELAY() for consistency, and
garbage-collect some old code from wdcintr() which has been ifdef'd out
for some time now.
1999-04-01 21:46:28 +00:00
bouyer 1e0e78854a There's no ATA draft where it is required for the drive to set DRDY | DSC when
the disk is ready to transfer data, and in ATA-5 the DSC has been obsoleted.
So only wait for DRQ to transfer data. This can be made conditional on the
ATA version if it's proven to break with some drives (worked with all the
drives I have access to).
While I'm there correct a few typos.
1999-02-08 15:22:28 +00:00
bouyer 94f32463dc Add a callback to re-compute the modes used on a channel. 1998-12-16 12:46:47 +00:00
bouyer 47ab212504 Rename pio_mode, etc ... to PIO_cap, etc ... for consistency with the
ata_drive_datas struct. Suggested by Soren S. Jorvan.
1998-12-03 18:24:30 +00:00
bouyer 2b28c858d8 add a udma_mode field to wdc_softc, and use it the same way dma_mode is used
(higthest ultra-dma mode supported). There may be a higther ultra-dma mode
defined ...
1998-12-03 15:38:59 +00:00
bouyer 1d5d5ab40a In struct wdc_xfer, change 'channel' to a pointer to a channel_softc, to avoid
a double-pointer dereference at run-time. Suggested by Matthias Drochner.
1998-12-02 15:53:34 +00:00
drochner 3e38051bc5 in wdc_softc: access the per-channel data via a pointer array instead of
an array of fixed-sized channel_softc elements. This way IDE controllers
which more than 1 channel (pciide) can extend the channel data easily
for private needs.
To avoid the double dereference at runtime, change the argument of
wdcstart() to the channel data pointer instead of the array index.
1998-11-21 15:41:41 +00:00
thorpej 4ba3417429 Implement reference counting for ATA adapters. 1998-11-20 01:22:37 +00:00
thorpej 5f0577babc Adapt to the new scsipi_adapter interface. 1998-11-19 21:43:00 +00:00
bouyer b64b7c2964 New IDE xfer flag: C_SENSE, set by the ATAPI back-end sense info needs to
be retrieved.
1998-11-17 14:14:52 +00:00
bouyer 19fddaeeb5 Merge bouyer-ide 1998-10-12 16:09:10 +00:00
mark 962edcdc03 Add data32iot and data32ioh members to the wdc_attachment_data structure.
This bus space tag and handle is used for 32 bit data transfers i.e.
when WDC_CAPABILITY_DATA32 is enabled as the 32 bit data register may
not be part of the standard drive registers.
1998-09-22 00:21:16 +00:00
kenh 9539399333 Add support for passing device quirks from the attachment routine,
and add support for a NO_EXTRA_RESETS quirk (required by the TEAC
IDE Card/II, which the Vaio uses).
1998-09-10 19:24:45 +00:00
mycroft 6dc903202f Assign my copyrights to TNF. 1998-08-15 10:10:47 +00:00
leo fe60e74148 Add hooks to make exclusive hardware locking possible. This is necessary
to make the driver suitable for the atari falcon.
1998-04-07 19:51:57 +00:00
cgd aaede4d8d8 Various cleanups and bug fixes to the wdc/wd code:
* Fix bug in wdc that would overflow ATAPI transfer length.
* Improve wdc probe code so that 'wdc' is probed in if present
  even if there are no drives attached, and so that it works
  properly even if the only device is an ATAPI slave.
* bus_space-ify.
* split the ISA attachment from the wdc driver, and remove
  ISA dependencies from non-ISA files.
* claim that wd and wdc are now machine-independent (probably not
  completely true, but mostly so; they at least work on arm32 and
  i386).
* Various other minor fixups and cleanups, some of which were pointed
  out by Kazuki Sakamoto.
1998-01-14 23:41:59 +00:00