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History log of /src/sys/dev/isapnp/wdc_isapnp.c
RevisionDateAuthorComments
 1.45  25-Sep-2022  thorpej Remove unnecessary include of <sys/malloc.h>.
 1.44  20-Oct-2017  jdolecek move ata_queue_alloc(1) and ata_queue_free() calls to ata_channel_init()
and ata_channel_destroy() respectively, to make attachment code simpler,
and to make it easier to spot special queue manipulation like cmdide(4)

on topic of PR kern/52606
 1.43  07-Oct-2017  jdolecek adapt for NCQ branch merge too
 1.42  31-Jul-2012  bouyer branches: 1.42.2;
Apply back changes that were reverted on Jul 24 and Jul 26 (general ata/wdc
cleanup and SATA PMP support), now that I'm back to fix the fallouts.
 1.41  26-Jul-2012  jakllsch Revert, with intention of restoring in a less invasive way, the SATA Port
Multiplier code.

ok christos@
 1.40  02-Jul-2012  bouyer Add sata Port MultiPlier (PMP) support to the ata bus layer,
as described in
http://mail-index.netbsd.org/tech-kern/2012/06/23/msg013442.html
PMP support in integrated to the atabus layer.
struct ata_channel's ch_drive[] is not dynamically allocated, and ch_ndrive
(renamed to ch_ndrives) closely reflects the size of the ch_drive[] array.
Add helper functions atabus_alloc_drives() and atabus_free_drives()
to manage ch_drive[]/ch_ndrives.
Add wdc_maxdrives to struct wdc_softc so that bus front-end can specify
how much drive they really support (master/slave or single).
ata_reset_drive() callback gains a uint32_t *sigp argument which,
when not NULL, will contain the signature of the device being reset.
While there, some cosmetic changes:
- added a drive_type enum to ata_drive_datas, and stop encoding the
probed drive type in drive_flags (we were out of drive flags anyway).
- rename DRIVE_ATAPIST to DRIVE_ATAPIDSCW to better reflect what this
really is
- remove ata_channel->ata_drives, it's redundant with the pointer in
ata_drive_datas
- factor out the interpretation of SATA signatures in sata_interpet_sig()

propagate these changes to the ATA HBA drivers, and add support for PMP
to ahcisata(4) and siisata(4).

Thanks to:
- Protocase (http://www.protocase.com/) which provided a system
with lots of controllers, SATA PMP and drive slots
- Conservation Genomics Laboratory, Department of Biology, New Mexico State
University for hosting the above system
- Brook Milligan, who set up remote access and has been very responsive
when SATA cable move was needed
 1.39  28-Apr-2008  martin branches: 1.39.34;
Remove clause 3 and 4 from TNF licenses
 1.38  18-Mar-2008  cube branches: 1.38.2; 1.38.4;
Split device_t and softc for ATA devices, as well as wd(4). Other
cosmetic changes where appropriate.
 1.37  19-Oct-2007  ad branches: 1.37.12; 1.37.16;
machine/{bus,cpu,intr}.h -> sys/{bus,cpu,intr}.h
 1.36  16-Nov-2006  christos branches: 1.36.8; 1.36.22; 1.36.24; 1.36.28;
__unused removal on arguments; approved by core.
 1.35  12-Oct-2006  christos - sprinkle __unused on function decls.
- fix a couple of unused bugs
- no more -Wno-unused for i386
 1.34  29-Mar-2006  thorpej branches: 1.34.8; 1.34.10;
Use device_private().
 1.33  16-Jan-2006  bouyer branches: 1.33.2; 1.33.4; 1.33.6; 1.33.8; 1.33.10;
properly use ata_channel->ch_ndrive:
- initialize it properly in the bus front-ends (all 2, exept in wdc_pcmcia.c
for the "Sandisk CompactFlash Card" where it's set to 1)
- remplace hardcoded '2' by ata_channel->ch_ndrive in MI IDE drivers.

From Christos Zoulas in kern/32501.
 1.32  11-Dec-2005  christos branches: 1.32.2;
merge ktrace-lwp.
 1.31  21-Sep-2004  thorpej branches: 1.31.12;
Fix a mis-placed wdc_init_shadow_regs().
 1.30  20-Aug-2004  thorpej Move most of wdc_softc into a new atac_softc structure that contains
info common to all types of ATA controllers.
 1.29  19-Aug-2004  thorpej Use ANSI function decls and "static".
 1.28  14-Aug-2004  thorpej - Split the register handles out of struct wdc_channel into a separate
wdc_regs structure, and array of which (indexed per channel) is pointed
to by struct wdc_softc.
- Move the resulting wdc_channel structure to atavar.h and rename it to
ata_channel. Rename the corresponding flags.
- Add a "ch_ndrive" member to struct ata_channel, which indicates the
maximum number of drives that can be present on the channel. For now,
this is always 2. Add an ATA_MAXDRIVES constant that places an upper
limit on this value, also currently 2.
 1.27  25-May-2004  thorpej Add the notion of "shadow registers" to the wdc driver. These shadow
registers are registers that overlap with others on many controllers, but
which may actually be distinct on some controllers. Right now, the two
shadows are:

- wd_status (usually overlaps wd_command)
- wd_features (usually overlaps wd_error)

Add a new helper function, wdc_init_shadow_regs(), used to initialize
the shadow register handles on controllers where they do actually overlap.

Partially from Jordan Rhody @ Wasabi Systems, Inc.
 1.26  03-Jan-2004  thorpej More wdc_channel structure member namespace cleanup:
- channel -> ch_channel
- wdc -> ch_wdc
 1.25  03-Jan-2004  thorpej Rename "struct channel_softc" to "struct wdc_channel".
 1.24  01-Jan-2004  thorpej Rename:
- 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.
 1.23  27-Nov-2003  fvdl There are some cards that map the ATA control and IDE DMA registers
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).
 1.22  08-Oct-2003  bouyer Make the ATA mid-layer appears as atabus, as proposed in
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.
 1.21  25-Sep-2003  mycroft Hide the use of config_interrupts() in one place.
 1.20  19-Sep-2003  mycroft 1) Use config_interrupts() to attach IDE and ATAPI drives. This eliminates
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.
 1.19  22-Mar-2003  matt branches: 1.19.2;
Don't malloc the channel_queue, put it in the softc. Print modes too.
 1.18  02-Oct-2002  thorpej Add trailing ; to CFATTACH_DECL.
 1.17  30-Sep-2002  thorpej Use CFATTACH_DECL().
 1.16  27-Sep-2002  thorpej Declare all cfattach structures const.
 1.15  15-Nov-2001  lukem don't need <sys/types.h> when including <sys/param.h>
 1.14  13-Nov-2001  lukem add RCSID
 1.13  22-Mar-1999  mycroft branches: 1.13.20; 1.13.22;
Reject variant numbers which are too large (so that a new version of isapnpdevs
with an old driver will not lose mysteriously).
 1.12  22-Mar-1999  mycroft Update callers of isapnp_devmatch().
 1.11  22-Feb-1999  mycroft Use DMAMODE_DEMAND.
 1.10  03-Dec-1998  bouyer Rename pio_mode, etc ... to PIO_cap, etc ... for consistency with the
ata_drive_datas struct. Suggested by Soren S. Jorvan.
 1.9  21-Nov-1998  drochner 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.
 1.8  12-Oct-1998  bouyer Merge bouyer-ide
 1.7  12-Sep-1998  wrstuden PnP IDE controllers can pass us the regions in any order, so make sure
that sc_ad.ioh is the 8-byte region as opposed to blindly passing it
the first region.

With this change, and a device def which will follow, the IDE controller
on my OPTi Audio 16 card works!
 1.6  15-Aug-1998  mycroft Assign my copyrights to TNF.
 1.5  23-Jul-1998  christos Create a master list of pnp logical and compatibility device codes instead
of hard-coding it into each driver and use a centralized probe function.
 1.4  09-Jun-1998  thorpej Nuke __BROKEN_INDIRECT_CONFIG.
 1.3  09-Jun-1998  thorpej Adjust for the changes to the ISA DMA API.
 1.2  31-Jan-1998  christos branches: 1.2.2;
Don't hardcode the interrupt type; use what the pnp config provided to us.
 1.1  23-Jan-1998  mycroft Add a PnP IDE frontend.
 1.2.2.7  02-Oct-1998  bouyer Cleanup a few error message, remove some dead code. Re-add a reset at end of
attach, unless we have WDC_NO_EXTRA_RESETS.
Add support for data32iot/data32ioh from -current: each controller pass
WDC_CAPABILITY_DATA32 if they can do 32bit, and WDC_CAPABILITY_DATA16 if they
can do 16bit. For controller that support both, the usual autodetect
mechanism is still used.
 1.2.2.6  20-Sep-1998  bouyer sync with HEAD
 1.2.2.5  21-Aug-1998  bouyer Sync with -current
 1.2.2.4  27-Jul-1998  bouyer Sync with -current
 1.2.2.3  13-Jun-1998  bouyer Sync with HEAD.
 1.2.2.2  09-Jun-1998  bouyer Sync with trunk.
 1.2.2.1  04-Jun-1998  bouyer Commit changes to the IDE system in a branch. This allows a better separation
between higth-level and low-level (i.e. registers read/write) and generalize
the queue for all commands. This also add supports for IDE DMA.
 1.13.22.2  10-Oct-2002  jdolecek sync kqueue with -current; this includes merge of gehenna-devsw branch,
merge of i386 MP branch, and part of autoconf rototil work
 1.13.22.1  10-Jan-2002  thorpej Sync kqueue branch with -current.
 1.13.20.3  18-Oct-2002  nathanw Catch up to -current.
 1.13.20.2  08-Jan-2002  nathanw Catch up to -current.
 1.13.20.1  14-Nov-2001  nathanw Catch up to -current.
 1.19.2.5  24-Sep-2004  skrll Sync with HEAD.
 1.19.2.4  21-Sep-2004  skrll Fix the sync with head I botched.
 1.19.2.3  18-Sep-2004  skrll Sync with HEAD.
 1.19.2.2  25-Aug-2004  skrll Sync with HEAD.
 1.19.2.1  03-Aug-2004  skrll Sync with HEAD
 1.31.12.4  24-Mar-2008  yamt sync with head.
 1.31.12.3  27-Oct-2007  yamt sync with head.
 1.31.12.2  30-Dec-2006  yamt sync with head.
 1.31.12.1  21-Jun-2006  yamt sync with head.
 1.32.2.1  01-Feb-2006  yamt sync with head.
 1.33.10.1  31-Mar-2006  tron Merge 2006-03-31 NetBSD-current into the "peter-altq" branch.
 1.33.8.1  19-Apr-2006  elad sync with head.
 1.33.6.1  01-Apr-2006  yamt sync with head.
 1.33.4.1  22-Apr-2006  simonb Sync with head.
 1.33.2.1  09-Sep-2006  rpaulo sync with head
 1.34.10.2  10-Dec-2006  yamt sync with head.
 1.34.10.1  22-Oct-2006  yamt sync with head
 1.34.8.1  18-Nov-2006  ad Sync with head.
 1.36.28.1  25-Oct-2007  bouyer Sync with HEAD.
 1.36.24.2  23-Mar-2008  matt sync with HEAD
 1.36.24.1  06-Nov-2007  matt sync with HEAD
 1.36.22.1  26-Oct-2007  joerg Sync with HEAD.

Follow the merge of pmap.c on i386 and amd64 and move
pmap_init_tmp_pgtbl into arch/x86/x86/pmap.c. Modify the ACPI wakeup
code to restore CR4 before jumping back into kernel space as the large
page option might cover that.
 1.36.8.1  23-Oct-2007  ad Sync with head.
 1.37.16.2  02-Jun-2008  mjf Sync with HEAD.
 1.37.16.1  03-Apr-2008  mjf Sync with HEAD.
 1.37.12.1  24-Mar-2008  keiichi sync with head.
 1.38.4.1  16-May-2008  yamt sync with head.
 1.38.2.1  18-May-2008  yamt sync with head.
 1.39.34.1  30-Oct-2012  yamt sync with head
 1.42.2.1  03-Dec-2017  jdolecek update from HEAD

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