Commit Graph

18 Commits

Author SHA1 Message Date
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 1ff88ee466 Avoid busy-waiting when possible if we are not polling (real IRQ or timeout
callback). Shared PCI IRQ should now work (but still untested).
1999-03-25 16:17:36 +00:00
bouyer af9df0ab31 Revert to a 10s timeout, 1s is too low for drives in sleep mode. 1999-03-17 10:13:56 +00:00
bouyer ba74f49e60 Keep track of CRC errors in Ultra-DMA mode. If we noticed a CRC error and we
need to downgrade, downgrade to PIO, as it has been shown if we got CRC errors
in Ultra-DMA mode, we will have silent data corruption in multiword DMA mode
(isn't IDE wonderfull ? :).
Set timeout to 1s for "normal" ata I/O, to minimise the effects of missed
interrupts.
1999-03-07 14:02:53 +00:00
hubertf ed418e30a2 Only define WDCDEBUG if not already define (e.g. by kernel option) 1999-02-21 00:52:04 +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 ce870816e0 Cosmetic changes, from Soren S. Jorvan. 1999-01-29 11:36:20 +00:00
thorpej 1a56840ec0 Make this compile again after void * arithmetic changes. 1999-01-09 03:05:19 +00:00
augustss 332d7c138f Avoid arithmetic on `void *' since that's not ANSI C. 1999-01-08 18:10:35 +00:00
bouyer c37bf0ccb4 Keep track of DMA errors, and downgrade the transert mode (UDMA ->DMA,
DMA->PIO) in case of 2 consecutive errors. Don't downgrade if the
PIO/DMA/UDMA modes were forced by a config flag.
1998-12-16 13:02:03 +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 d0a4fb616f Implement controller reference counting on ATA devices. 1998-11-20 01:23:52 +00:00
bouyer 1e71e76d6c - clearify the boot messages (features supported vs features used). Thanks to
Havard Eidnes for his complains about this :)
- fix some typo in comments
- hoppefully better detection of drives reporting bogus PIO modes.
1998-11-11 19:38:27 +00:00
bouyer e8322de657 Add a new drive flag, DRIVE_MODE, set when the drive properly reported its
PIO/DMA modes. Don't try a SET_FEATURE if it didn't report its mode.
1998-10-13 15:18:46 +00:00
bouyer 7545a59b8c In debug message, always print controller:channel:drive 1998-10-13 15:02:41 +00:00
bouyer ff0134b99f Properly separate DEBUF_XFERS and DEBUG_FUNCS: DEBUF_XFERS is for data
transfers (may be called often), where DEBUG_FUNCS is for setup functions
(not used for normal contitions).
1998-10-13 09:33:59 +00:00
thorpej dc7cfafe4c Default to "no debugging messages" (still patchable). 1998-10-13 05:39:01 +00:00
bouyer 19fddaeeb5 Merge bouyer-ide 1998-10-12 16:09:10 +00:00