| Age | Commit message (Collapse) | Author |
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- channel -> ch_channel
- wdc -> ch_wdc
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- wdc_xfer to ata_xfer
- channel_queue to ata_queue
and move them to <dev/ata/atavar.h> so they can be used by non-wdc ATA
controllers. Clean up the member names of these structures while at it.
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This was the last commit of this kind to src/sys, which is now totally
"NetBSD.org clean". Thanks for the patiance, and sorry for all the commits.
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Now all "NetBSD.ORG" are gone from src/sys.
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in a different fashion. Individually, they have the same functionality,
but their layout is different. An example of such a chipset is
the Promise 203xx.
To be able to deal with this, transform the cmd and dma bus_space handles
into an array of handles, each seperately created with bus_space_subregion.
The code generated by using the extra indirection shouldn't change much,
since the extra indirection is negated by having the offset calculation
already done in bus_space_subregion. E.g.
bus_space_write_4(tag, handle, offset, value)
becomes
bus_space_write_4(tag, handles[offset], 0, value)
Reviewed by Manuel Bouyer. Tested on wdc_isa, wdc_pcmcia, viaide, piixide (i386)
and on cmdide (sparc64).
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caused compiler warnings with gcc 3.3.2.
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Also, don't do the rest of the probe work if the product ID mismatches, since
we'll return 0 anyway.
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http://mail-index.netbsd.org/tech-kern/2003/09/25/0006.html
This adds a device (atabus) between IDE controllers and wd or atapibus, to
have each ATA channel show up in the device tree. Later there will be atabus
devices in /dev, so that we can do IOCTL on them.
Each atabus has its own kernel thread, to handle operations that needs polling,
e.g. reset and others.
Device probing on each bus it defered to the atabus thread creation.
This allows to do the reset and basic device probes in parallel, which reduce
boot time on systems with several pciide controllers.
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removing assumptions that there are only two B channels and by
adding support for a varying number of channels.
Due to this, rename previously used isdn identified "bri" to "isdnif",
which better describes the current situation.
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DRQ allocation is done earlier.
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Also try to accept a recalibrate interrupt to terminate the delay -- but that
doesn't seem to work reliably, so do a 2s timeout as well.
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you get lucky and the probe is faster. A more complete fix will require making
the probe use interrupts, since there is no reliable way to poll.
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1) Don't wait for DRQ on an IDENTIFY command -- if it's not set when we see
BSY clear, abort the command and ignore the drive. (Do this by testing
for DRQ in the read/write cases in __wdccommand_intr().)
2) Don't wait for DRQ to deassert when we finish an IDENTIFY (or any other
non-block command that reads data) -- we don't do this for block I/O, and
empirically it doesn't clear on my CF cards at all, causing a pointless 1s
delay.
3) Add comments to some of the delay()s, and add missing ones in wdcreset()
and the WDCC_RECAL in the so-called "pre-ATA" probe.
4) Slightly simplify the reset sequence -- we were doing an extra I/O.
5) Modify the register writability test to make sure that registers are not
overlapped -- this can happen in some weird cases with a missing device 1.
6) Check the error register value after the reset -- if it's not 01h or 81h,
as appropriate (see ATA spec), punt.
Tested with a number of ATA-only, ATAPI-only, mixed ATA-ATAPI, CF, and IDE
disk configurations.
Also remove the SINGLE_DRIVE nonsense again.
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WDC_CAPABILITY_SINGLE_DRIVE.
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most polling.
2) Clean up some goofiness in pciide -- get rid of the whole "candisable" path
(it's gratuitous) and simplify the code by calling pciide_map_compat_intr(),
*_set_modes() and wdc_print_modes() from central locations.
3) Add a register writability and register ghost test to eliminate phantom
drives more quickly.
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PCIC_VENDOR_NONE: New.
PCIC_VENDOR_CIRRUS_*: Collapse the 2 chips into one vendor ID.
pcic_ident_ok(): Check the ID revision field -- if it's 0, punt.
pcic_vendor(): Check the ID revision field -- if it's 0, or the ID register
is all-1s, assume there is no chip present. (Previously this would return
"Unknown controller" -- which, AFAICT, *never* resulted in a working device.)
Do the Cirrus check only after verifying that we got the Intel ID.
pcic_attach(): Use a priori knowledge of the Cirrus chips to determine the
number of sockets rather than trying (unsuccessfully) to probe. Also, just
blast all of PCIC_INTR -- we do this in pcic_deactivate_card() anyway.
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that bit all over the bloody place
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Patches provided by Joel Baker in PR 22364, verified by myself.
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and need to be examined and discussed more.
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be inserted into ktrace records. The general change has been to replace
"struct proc *" with "struct lwp *" in various function prototypes, pass
the lwp through and use l_proc to get the process pointer when needed.
Bump the kernel rev up to 1.6V
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including boards made by Captial Equipment Corp.
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rather than the label itself. This paves the way for some future changes.
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isa_dmamap_create() calls to their open/close entrypoints. This worked
with some luck, but broke on i386 when _bus_dmamap_create started
to allocate bounce buffers upfront, since memory below 16M may well
not be available when the sound devices is opened for the Nth time.
To fix this, create a new simple interface, isa_drq_alloc/isa_drq_free,
wrappers around already existing bitmask macros. These are expected
to be used before an isa_dmamap_create call, and after an
isa_dmamap_destroy call, respectively. For the sb and ad1848 drivers,
they're deferred until open/close.
All isa_dmamap_create calls can now use BUS_DMA_ALLOCNOW and be done
at attach time.
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Inspired by Igor Sobrado in PR 19680.
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a few other things while here.
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comment to <sys/buf.h> reminding everyone of the need for splbio().
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use it. This fixes a few places where either b_dep or b_interlock were
not properly initialized.
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