NetBSD/sys/dev/isa
nathanw bd7b26e37d Add ISA attachment for ess chips. 1999-03-02 20:42:10 +00:00
..
Makefile Rework the way kernel include files are installed. In the new method, 1998-06-12 23:22:30 +00:00
README.seagate RCSID Police. 1998-01-05 07:31:05 +00:00
ad1848_isa.c Use DMAMODE_LOOPDEMAND. Tested on a CS4231 in a WSS clone. 1999-02-22 02:25:20 +00:00
ad1848var.h Kill vestiges of isa_establish(). 1999-02-19 16:15:06 +00:00
aha_isa.c Assign my copyrights to TNF. 1998-08-15 10:10:47 +00:00
aic_isa.c Nuke __BROKEN_INDIRECT_CONFIG. 1998-06-09 07:24:55 +00:00
aria.c * Redo the way the way the MIDI driver attaches to audio devices. 1998-08-17 21:16:09 +00:00
ariareg.h Add RCS IDs. 1998-07-21 07:48:36 +00:00
ast.c Make these files compile again; no longer necessary to pass 1998-09-18 14:38:48 +00:00
bha_isa.c Assign my copyrights to TNF. 1998-08-15 10:10:47 +00:00
boca.c Make these files compile again; no longer necessary to pass 1998-09-18 14:38:48 +00:00
com_isa.c Garbage collect unused 3rd parameter to comprobe1(). 1998-09-16 21:30:58 +00:00
com_multi.c Garbage collect unused 3rd parameter to comprobe1(). 1998-09-16 21:30:58 +00:00
com_multi.h New version of com driver. Uses a different queueing mechanism and a split 1997-04-04 20:56:34 +00:00
cs89x0.c Fix one last bug in the multicast filter calculation. 1998-11-13 09:37:46 +00:00
cs89x0reg.h Define the CS8900 memory size, and macros to test for valid memory 1998-07-25 00:41:47 +00:00
cs89x0var.h Track our carrier status and report it in the media status callback. 1998-08-07 05:55:14 +00:00
cs4231var.h Fix tipo inherited from old version of TNF copyright template. 1997-10-09 07:57:17 +00:00
cy_isa.c Nuke __BROKEN_INDIRECT_CONFIG. 1998-06-09 07:24:55 +00:00
elink.c Assign copyrights to TNF. 1998-08-15 03:51:30 +00:00
elink.h Assign copyrights to TNF. 1998-08-15 03:51:30 +00:00
esp_isa.c Adapt to the new scsipi_adapter interface. 1998-11-19 21:53:32 +00:00
espvar.h Kill vestiges of isa_establish(). 1999-02-19 16:15:06 +00:00
ess.c Add support for the 1788 AudioDrive chip. 1999-03-02 20:36:50 +00:00
ess_isa.c Add ISA attachment for ess chips. 1999-03-02 20:42:10 +00:00
essreg.h Add support for the 1788 AudioDrive chip. 1999-03-02 20:36:50 +00:00
essvar.h Add support for the 1788 AudioDrive chip. 1999-03-02 20:36:50 +00:00
files.isa Add Byte Runner Technologies TC-400 and TC-800 driver from Eric S. Hvozda 1998-12-16 11:33:50 +00:00
gus.c Fix structure names. 1999-02-19 16:59:36 +00:00
gusreg.h Fix tipo inherited from old version of TNF copyright template. 1997-10-09 07:57:17 +00:00
i82365_isa.c Nuke __BROKEN_INDIRECT_CONFIG. 1998-06-09 07:24:55 +00:00
i82365_isasubr.c Oops; PCIC_INTR_ENABLE does something *very* different. 1999-02-19 03:14:00 +00:00
i82365_isavar.h Add ISAPnP attachment for PCMCIA bus controller; reorganize ISA 1998-06-07 18:28:31 +00:00
ics2101.c Remove a bunch of totally unnecessary #include <machine/pio.h> 1998-06-17 08:17:25 +00:00
ics2101var.h Fix tipo inherited from old version of TNF copyright template. 1997-10-09 07:57:17 +00:00
if_ai.c Fix more `void *' arithmetic. 1999-01-08 19:22:34 +00:00
if_aireg.h Remove extraneous `$Id$' lines. 1998-02-28 20:43:28 +00:00
if_ate.c Enable early probe stage printf's not by DIAGNOSTIC but more driver 1998-10-07 04:58:06 +00:00
if_cs_isa.c Fix cfattach naming botch. 1998-07-27 18:27:36 +00:00
if_depca_isa.c Assign my copyrights to TNF. 1998-08-15 10:51:16 +00:00
if_ec.c Holy smokes, batman! Actually fill in the "init_card" entry point! 1998-10-27 22:45:13 +00:00
if_ecreg.h Front-end to the dp8390 chip driver for the 3Com 3c503 Ethernet interface. 1997-11-02 00:44:25 +00:00
if_ef.c Fix more `void *' arithmetic. 1999-01-08 19:22:34 +00:00
if_efreg.h Remove extraneous `$Id$' lines. 1998-02-28 20:43:28 +00:00
if_eg.c Update to slightly altered rnd_attach_source() api 1999-02-28 17:08:05 +00:00
if_egreg.h Stylistic changes. 1995-07-23 21:14:31 +00:00
if_el.c Update to slightly altered rnd_attach_source() api 1999-02-28 17:08:05 +00:00
if_elreg.h new RCS ID format. 1994-10-27 04:14:23 +00:00
if_ep_isa.c Add the 'ex' driver, a DMA driver for 3Com 90x and 90xB cards. Rename 1998-11-04 00:29:28 +00:00
if_fereg.h RCSID Police. 1998-01-05 07:31:05 +00:00
if_fmv.c Enable early probe stage printf's not by DIAGNOSTIC but more driver 1998-10-07 04:58:06 +00:00
if_hp.c Update to slightly altered rnd_attach_source() api 1999-02-28 17:08:05 +00:00
if_ix.c Fix more `void *' arithmetic. 1999-01-08 19:22:34 +00:00
if_ixreg.h Remove extraneous `$Id$' lines. 1998-02-28 20:43:28 +00:00
if_iy.c Update to slightly altered rnd_attach_source() api 1999-02-28 17:08:05 +00:00
if_lc_isa.c defopt NS, NSIP. 1998-07-05 06:49:00 +00:00
if_le_isa.c Assign my copyrights to TNF. 1998-08-15 10:51:16 +00:00
if_levar.h Assign my copyrights to TNF. 1998-08-15 10:51:16 +00:00
if_ne_isa.c make this compile again (missing semi-colon) 1998-11-01 01:04:48 +00:00
if_sm_isa.c defopt NS, NSIP. 1998-07-05 06:49:00 +00:00
if_we.c Holy smokes, batman! Actually fill in the "init_card" entry point! 1998-10-27 22:45:13 +00:00
if_wereg.h Add a front-end to the MI dp8390 driver for the Western Digital/SMC 80x3 1997-11-03 21:22:50 +00:00
isa.c Kill vestiges of isa_establish(). 1999-02-19 16:15:06 +00:00
isadma.c Oops; remove obsolete code. 1999-02-22 02:33:48 +00:00
isadmareg.h add definitions for the mask registers. fix I/O size definitions. 1998-01-22 00:57:10 +00:00
isadmavar.h Add support for demand mode with auto-init. 1999-02-22 02:32:43 +00:00
isareg.h The keyboard controller's address range is 5 bytes long - reflect this 1998-03-22 15:44:02 +00:00
isavar.h Kill vestiges of isa_establish(). 1999-02-19 16:15:06 +00:00
lpt_isa.c Make copyright notices with my name consistent. 1998-08-15 03:02:31 +00:00
madreg.h Make the OPL information string more informative. 1998-12-08 14:26:56 +00:00
mcd.c Change DIOCEJECT to do what's needed to eject a device before the eject 1999-02-08 16:33:16 +00:00
mcdreg.h Busify the driver (from perry). 1997-04-04 18:59:35 +00:00
midi_pcppi.c Make the copyright header conform to the NetBSD template. 1998-11-25 22:17:06 +00:00
mpu401.c Make the copyright header conform to the NetBSD template. 1998-11-25 22:17:06 +00:00
mpu401var.h Make the copyright header conform to the NetBSD template. 1998-11-25 22:17:06 +00:00
nca.c Adapt to the new scsipi_adapter interface. 1998-11-19 21:53:32 +00:00
ncareg.h PR/6274: John Ruschmeyer: Add isa/i386 ncr53c80 driver. 1998-10-25 18:41:56 +00:00
ncavar.h Kill vestiges of isa_establish(). 1999-02-19 16:15:06 +00:00
opl_ess.c Make the OPL information string more informative. 1998-12-08 14:26:56 +00:00
opl_isa.c Make the OPL driver attach directly to ISA as well. 1998-08-26 13:33:59 +00:00
opl_sb.c Make the OPL information string more informative. 1998-12-08 14:26:56 +00:00
pas.c Add separate halt_output and halt_input routines. 1999-02-18 07:08:35 +00:00
pasreg.h Add support for PAS 16 basic 1995-03-15 18:45:58 +00:00
pcdisplay.c remove dummy "load_font" entries 1999-01-11 21:35:54 +00:00
pcdisplayvar.h Add a graphics device driver for wscons which supports legacy PC display 1998-05-28 16:51:50 +00:00
pckbc.c Make "1" an acceptable result in port tests. 1999-02-28 14:26:38 +00:00
pckbcvar.h MI driver for the infamous PC keyboard controller, primarily for use with 1998-03-22 15:25:15 +00:00
pcppi.c MI driver for the ISA speaker, and the IBM BASIC playstring interpreter 1998-04-15 20:26:18 +00:00
pcppireg.h MI driver for the ISA speaker, and the IBM BASIC playstring interpreter 1998-04-15 20:26:18 +00:00
pcppivar.h MI driver for the ISA speaker, and the IBM BASIC playstring interpreter 1998-04-15 20:26:18 +00:00
pss.c Kill vestiges of isa_establish(). 1999-02-19 16:15:06 +00:00
pssreg.h Remove strings 1995-05-08 22:01:34 +00:00
rtfps.c Make these files compile again; no longer necessary to pass 1998-09-18 14:38:48 +00:00
satlink.c Nuke __BROKEN_INDIRECT_CONFIG. 1998-06-09 07:24:55 +00:00
satlinkio.h Fix tipo inherited from old version of TNF copyright template. 1997-10-09 07:57:17 +00:00
satlinkreg.h Fix tipo inherited from old version of TNF copyright template. 1997-10-09 07:57:17 +00:00
sb.c Move IRQ setup into frontend. Need to move DRQ handling as well. 1999-02-19 16:10:44 +00:00
sb_isa.c Move IRQ setup into frontend. Need to move DRQ handling as well. 1999-02-19 16:10:44 +00:00
sbdsp.c Use DMAMODE_LOOPDEMAND. Tested on a ViBRA16. 1999-02-22 02:16:40 +00:00
sbdspvar.h Move IRQ setup into frontend. Need to move DRQ handling as well. 1999-02-19 16:10:44 +00:00
sbreg.h Add separate halt_output and halt_input routines. 1999-02-18 07:08:35 +00:00
sbvar.h Assign copyright to TNF. 1998-09-05 14:12:36 +00:00
seagate.c Kill vestiges of isa_establish(). 1999-02-19 16:15:06 +00:00
spkr.c MI driver for the ISA speaker, and the IBM BASIC playstring interpreter 1998-04-15 20:26:18 +00:00
spkrio.h MI driver for the ISA speaker, and the IBM BASIC playstring interpreter 1998-04-15 20:26:18 +00:00
tcom.c Add Byte Runner Technologies TC-400 and TC-800 driver from Eric S. Hvozda 1998-12-16 11:33:50 +00:00
uha_isa.c Assign my copyrights to TNF. 1998-08-15 10:10:47 +00:00
vga_isa.c clean up vga_isa_match() - always return "2" on success to make the 1998-06-12 18:45:48 +00:00
vga_isavar.h ISA frontend for sys/dev/ic/vga.c 1998-03-22 15:14:35 +00:00
wdc_isa.c Use DMAMODE_DEMAND. 1999-02-22 03:24:33 +00:00
wds.c Update for changed scsipi_xfer struct. 1998-12-09 08:37:50 +00:00
wdsreg.h RCSID Police. 1998-01-05 07:31:05 +00:00
wss.c Add separate halt_input and halt_output methods in ad1848_isa, which disable 1999-02-18 17:27:39 +00:00
wss_isa.c Use the trigger interface, and clean up a pile of cruft. 1999-02-17 23:05:28 +00:00
wssreg.h normalize off-by-four ad1848 register offsets. 1997-03-19 06:45:21 +00:00
wssvar.h Kill vestiges of isa_establish(). 1999-02-19 16:15:06 +00:00
wt.c Avoid `void *' arithmetic. Fixes PR 6783. 1999-01-10 21:57:19 +00:00
wtreg.h new RCS ID format. 1994-10-27 04:14:23 +00:00
ym.c Add separate halt_input and halt_output methods in ad1848_isa, which disable 1999-02-18 17:27:39 +00:00
ymvar.h Update for minor changes in the ad1848 back end. 1999-02-23 21:16:27 +00:00

README.seagate

#	$NetBSD: README.seagate,v 1.2 1998/01/05 07:31:07 perry Exp $

The hardware:

The ST01/02, and Future Domain 950 are very simple SCSI controllers. They are
not busmastering, so the processor must do all transfers a la IDE. They support
blind transfer by adding wait states (up to a certain limit). Interrupt is
generated for reconnect and parity errors (maybe also for some other events).

The card consists of one command port that writes to scsi control lines, reads
status lines, and a data port that read/writes to the 8 data lines. The address
decoding gives both data and control ports large memory areas to a single
port. This is used by the code.

The ST01/02 differs from the FD950 in memory address location and SCSI id.

Probing for the card:

A card is recognized by comparing the BIOS signature with known signatures. A
new card may not be recognized if the BIOS signature has changed. Please send
new signatures to me.

Driver function:

A scsi command is sent to scsi_cmd function. The command is either placed in
the queue or an retryable message is returned. The routine may wait for
completion of the command depending on the supplied flags. A timer is started
for every command placed in the queue. The commands are added in the order they
are received. There is a possiblity to make all REQUEST SENSE commands be
queued before all other commands, but I dont think it is a good thing (Linux
do however use this). 

The card is mostly controlled by the sea_main function. It is called by
scsi_cmd, the interrupt routine, and the timeout routine. The sea_main routine
runs as long there are something to do (transfer data, issue queued commands,
and handle reconnected commands).

The data transfers may be done in two different ways: Blind and polled
transfers. They differ in the way the driver does it handshaking with the
target. During a blind transfer, the driver code blindly transfers a block
of data without checking for changed phase. During polled transfers, the
phase is checked between every character transfered. The polled transfers
are always used for status information and command transfers.

Because the card does not use dma in any way, there is no need to handle
physical addresses. There is no problem with the isa-bus address limit of
16MB, making bounce-buffers unnecessary.

The data structures:

Every card has a sea_softc structure keeping the queues of commands waiting to
be issued, and commands currently disconnected. The type of card (Seagate or
Future Domain), data and control port addresses, scsi id, busy flags for all
possible targets, and interrupt vector for the card.

Every scsi command to be issued are stored in a sea_scb structure. It contains
a flag describing status/error of the command, current data buffer position,
and number of bytes remaining to be transfered.


PROBLEMS

I have had problems getting the ST02 boot using the boot floppies. I think it
is some problem with BIOS calls not working. It is unfortunately impossible to
disconnect the ST02 floppy controller.

I have had problem to get the driver talk to a 40 MB Seagate disk. I dont have
access to it any more, so I can't do any more checks on that.

NOTE: The ST02 creates its own description of the disk attached. This is not
the same as the disk says. This translation problem may cause problems when
sharing a disk between both DOS and BSD. It is however not impossible.