summaryrefslogtreecommitdiff
path: root/sys/dev/atapiscsi
AgeCommit message (Collapse)Author
2000-04-10Added support for wd detach (merge from NetBSD). Support forConstantine Sapuntzakis
SCSI/ATAPI detach is not here yet. Minor cleanup of wdc. Downgrade to UDMA mode 1 before going further. Want to stay in UDMA modes because they're more error-resilient due to a CRC. Got rid of some of the ridiculous amount of softc sharing going on. Hopefully, this will make the life of whoever goes in and fixes the ref-counting to be correct easier.
2000-01-12For reasons beyond my comprehension, touching the sdh register too muchConstantine Sapuntzakis
during probe causes the devices pain. So, I don't do that any more. :-) Also, try ATAPI_IDENTIFY_DEVICE a couple times. Seems to help with an old NEC drive.
1999-12-19Improve timeout handling in poll machineConstantine Sapuntzakis
Fix for some non-ATAPI-4 compliant drives
1999-12-14Various fixes:Constantine Sapuntzakis
Use ticks not time. Ticks is monotonically increasing. Fix error output in wdc_atapi_ctrl ATAPI errors -> SCSI errors conversion now works better Other minor cleanup
1999-12-11Cleanup.Constantine Sapuntzakis
Better timeout logic
1999-12-11ATAPI Tape drive support. Should be considered experimental.Constantine Sapuntzakis
Major restructuring of the code path that sends ATAPI packet commands. One set of functions works in polling, process, and interrupt contexts.
1999-11-17New interface to ATA registers that goes through the lower-level deviceConstantine Sapuntzakis
driver (pciide, wdc, etc.) Remove #define WDCDEBUG from top of files More fixes to ATAPISCSI logic: Not all devices transition correctly between phases. Devices are supposed to keep BSY high until they've set the registers to the next sensible state. Some devices drop BSY and leave the registers in an old or nonsense state. Our polling code is extremely sensitive to this (though an early itnerrupt could also observe this). So, if the device is in an unexpected state, the new polling code waits for a while in the hope that it enters a better state. This seems to fix many of the problems reported. Also, there was a horrible bug which would cause sense to fail on a ATAPI command that sent data to the drive
1999-11-02re-enable IDENTIFY, reset delay each timeTheo de Raadt
1999-10-29NetBSD take note:Constantine Sapuntzakis
Use xfer->c_bcount and not sc_xfer->datalen when passing our buffer limit to the device. In the case of SENSE, we were sending 0 as our buffer limit, potentially confusing some devices. Cap the bytes/interrupt at 65534, which prevents odd size transfers. Odd size transfers, while not inherently evil, are kind of weird through a 16-bit wide interface.
1999-10-29Added diagnostic: "length 0 transfer in data phase"Constantine Sapuntzakis
Changed SCSI XS_TIMEOUT error to SCSI XS_RESET error to better reflect that we had to reset the bus Don't downgrade DMA modes if the transfer that failed wasn't using DMA
1999-10-29Introduce wdc_output_bytes and wdc_input_bytes to remove replicated PIO logicTheo de Raadt
Fix wdc_select_drive to no longer wait for free channel (not strictly correct but we couldn't handle a non-free channel anyway) Major changes to the ATAPI interrupt logic to reduce reliance on the drive setting the bits correctly. Deal with situation that we get length = 0 back from the drive on transfer (instead of potentially looping forever). Timeout in drive setup should not cause the drive to downgrade modes.
1999-10-09wdc layer work:Constantine Sapuntzakis
Separate wdc_probe_caps into wdc_probe_caps and wdc_print_caps for more flexibility in printing capability information. Get rid of wdc_final_attach. Include name of device (e.g. cd0), if possible, on errors. atapiscsi layer work: Put a pointer to the SCSI device into ata_drive_datas' drv_softc field Simplify, simplify, simplify. Got rid of a bunch of fields in atapiscsi_softc Delay printing capabilities until we know the real device name (e.g. st0)
1999-10-06Turn of debugging diagnosticsConstantine Sapuntzakis
1999-10-06Fix piomode(0x4) errors.Constantine Sapuntzakis
Fix Sense Error 6 errors. Better atapi to scsi sense conversion.
1999-09-24Fix a bug that was causing timeouts every time an ATAPI device was reset.Constantine Sapuntzakis
1999-09-05Support for ATAPI tapes, works but still has some rough edges. Some style.Niklas Hallqvist
1999-08-12use bzero in the kernel (I thought I had done this already?)Niklas Hallqvist
1999-07-25Merge sd stuff from NetBSD-current. Helps with LS-120, ZIPConstantine Sapuntzakis
More SCSI logic from NetBSD-current Some tape fixes. ATAPI tapes do not work yet for most operations.
1999-07-23Don't even try wdc_get_params on a drive that didn't show up as ATAPIConstantine Sapuntzakis
during probe. This has a slight chance of breaking the detection of some ATAPI devices (which don't show during initial probe). Thanks to deraadt for pointing this out.
1999-07-23Identify Drive may have to access media. So, wait up to 10s (in polling mode)Constantine Sapuntzakis
for Identify Drive to do its thing. This should fix the "IDENTIFY timeout" some people are seeing. ATAPI SCSI buses only have 2 targets.
1999-07-22need a blank line here... for nowTheo de Raadt
1999-07-22Use wdc_select_drive if we're starting in the IDLE bus state.Constantine Sapuntzakis
Modify the ATAPI reset state machine. Added two states, IDENTIFY and IDENTIFY_WAIT. These will revive ATAPI drives after a hard ATA reset. I don't think ATAPI devices have LUNs, so flag SDEV_NOLUNS as quirk of the SCSI adapter. The SCSI devices will "inherit" this setting from the parent. Correctly deal with 16-byte command packet devices (not that any exists, AFAIK). Optimization - don't poll devices that assert an interrupt on after sending PACKET cmd.
1999-07-20Make acd redundant.Constantine Sapuntzakis
Mostly based on NetBSD-current
1999-07-19Lower chatinessConstantine Sapuntzakis
1999-07-18Added acd dummy device so the new ATA stuff compiles & linksConstantine Sapuntzakis
1999-07-18We need an "atapiscsi.h" for dev/ic/wdc.cConstantine Sapuntzakis
1999-07-18Import of NetBSD ATA/IDE stuff.Constantine Sapuntzakis
Introduction of home-grown To enable this stuff in your configuration, look at the NEWATA conf file and go through dev/isa/files.isa dev/pci/files.pci conf/files arch/i386/conf/files.i386 and follow the instructions on commenting/uncommenting stuff
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-14 22:42:53 +0000