NetBSD/sys/dev/isa
mycroft 2198701c01 The DMA support here never worked, so yank it out. 2003-03-03 22:07:21 +00:00
..
Makefile
README.seagate
ad1848_isa.c Add extensible malloc types, adapted from FreeBSD. This turns 2003-02-01 06:23:35 +00:00
ad1848var.h Add extensible malloc types, adapted from FreeBSD. This turns 2003-02-01 06:23:35 +00:00
addcom_isa.c Use aprint_normal() in cfprint routines. 2003-01-01 00:10:15 +00:00
adv_isa.c Use CFATTACH_DECL(). 2002-10-02 02:14:45 +00:00
aha_isa.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
aic_isa.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
aria.c Don't include <i386/isa/icu.h> 2002-12-10 05:05:11 +00:00
ariareg.h
ast.c Use aprint_normal() in cfprint routines. 2003-01-01 00:10:15 +00:00
aztech.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
bha_isa.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
boca.c Use aprint_normal() in cfprint routines. 2003-01-01 00:10:15 +00:00
cms.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
cmsreg.h
com_isa.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
com_multi.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
com_multi.h
cs89x0isa.c guarantee, not guarentee. Idea from miod@openbsd. 2003-02-02 10:24:38 +00:00
cs89x0isavar.h
cs4231var.h
cy_isa.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
daic_isa.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
depca_isa.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
dpt_isa.c Implement the DPT EATA ioctl() interface. 2002-12-07 19:48:30 +00:00
ega.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
egavar.h
elink.c
elink.h
esp_isa.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
esp_isavar.h
ess.c Add extensible malloc types, adapted from FreeBSD. This turns 2003-02-01 06:23:35 +00:00
ess_isa.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
essreg.h
essvar.h
fd.c Make this work as fdisa again on the Atari/Milan. 2003-02-26 20:48:48 +00:00
fdc_isa.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
fdcvar.h Support for 'plug and play' of floppy drives, to be used soon by the 2003-01-08 23:51:11 +00:00
fdreg.h
fdvar.h Support for 'plug and play' of floppy drives, to be used soon by the 2003-01-08 23:51:11 +00:00
files.isa The DMA support here never worked, so yank it out. 2003-03-03 22:07:21 +00:00
gus.c Don't include <i386/isa/icu.h> 2002-10-11 19:14:06 +00:00
gusreg.h
i82365_isa.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
i82365_isasubr.c interrupt with two rs. 2003-01-06 13:04:54 +00:00
i82365_isavar.h
ics2101.c
ics2101var.h
if_ai.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
if_aireg.h
if_ate.c More cleanup of MI mb86960 driver: 2002-11-30 14:15:10 +00:00
if_cs_isa.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
if_ec.c Zero out the NIC memory when padding packet to ETHER_MIN_LEN-ETHER_CRC_LEN 2003-01-15 22:20:03 +00:00
if_ecreg.h
if_ef.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
if_efreg.h
if_eg.c Zero out the NIC memory when padding packet to ETHER_MIN_LEN-ETHER_CRC_LEN 2003-01-15 22:00:43 +00:00
if_egreg.h
if_el.c Zero out the NIC memory when padding packet to ETHER_MIN_LEN-ETHER_CRC_LEN 2003-01-15 22:00:43 +00:00
if_elreg.h
if_ep_isa.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
if_fmv_isa.c Slightly modify attach messages. 2002-10-05 17:52:31 +00:00
if_hp.c Add a #error message asking to fix frame padding (this driver doesn't 2003-01-15 22:38:59 +00:00
if_ix.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
if_ixreg.h
if_iy.c interrupt with two rs. 2003-01-06 13:04:54 +00:00
if_lc_isa.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
if_le_isa.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
if_levar.h
if_ne_isa.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
if_ntwoc_isa.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
if_ntwoc_isareg.h
if_sm_isa.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
if_tr_isa.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
if_tribm_isa.c
if_trtcm_isa.c
if_we_isa.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
ioat66.c interrupt with two rs. 2003-01-06 13:04:54 +00:00
isa.c Use aprint_normal() in cfprint routines. 2003-01-01 00:10:15 +00:00
isadma.c Add extensible malloc types, adapted from FreeBSD. This turns 2003-02-01 06:23:35 +00:00
isadmareg.h
isadmavar.h Add extensible malloc types, adapted from FreeBSD. This turns 2003-02-01 06:23:35 +00:00
isareg.h
isavar.h
isic_isa.c Make it compile again (the softc struct is named inconsistently, 2002-10-20 10:50:01 +00:00
isic_isa_avm_a1.c
isic_isa_itk_ix1.c
isic_isa_tel_s08.c
isic_isa_tel_s016.c
isic_isa_tel_s0163.c
isic_isa_usr_sti.c
joy_isa.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
lm_isa.c Changes for SMBus/I2C: 2002-11-15 14:55:41 +00:00
lpt_isa.c The Double-Semi-Colon Police. 2003-01-20 05:29:53 +00:00
madreg.h
mcd.c implement separate read/write disk statistics: 2002-11-01 11:31:50 +00:00
mcdreg.h
midi_pcppi.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
moxa_isa.c Use aprint_normal() in cfprint routines. 2003-01-01 00:10:15 +00:00
mpu_isa.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
mpu_sb.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
mpu_ym.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
nca_isa.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
nsclpcsio_isa.c -fix script botch from CFATTACH_DECL introduction 2002-10-22 16:18:26 +00:00
opl_ess.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
opl_isa.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
opl_sb.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
opl_wss.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
opl_ym.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
pas.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
pasreg.h
pcdisplay.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
pcdisplayvar.h
pckbc_isa.c Avoid noise on kbd-less machines. 2002-10-04 03:40:29 +00:00
pcppi.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
pcppireg.h
pcppivar.h
pss.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
pssreg.h
radiotrack.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
radiotrack2.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
rtfps.c Use aprint_normal() in cfprint routines. 2003-01-01 00:10:15 +00:00
satlink.c si_ -> sel_ 2002-11-26 18:49:40 +00:00
satlinkio.h
satlinkreg.h
sb.c Removed unused structure. 2002-11-02 10:47:49 +00:00
sb_isa.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
sbdsp.c Add extensible malloc types, adapted from FreeBSD. This turns 2003-02-01 06:23:35 +00:00
sbdspvar.h Add extensible malloc types, adapted from FreeBSD. This turns 2003-02-01 06:23:35 +00:00
sbreg.h
sbvar.h
seagate.c changed asm()s to __asm()s. 2002-11-02 02:10:56 +00:00
sf16fmr2.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
slhci_isa.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
spkr.c merge kqueue branch into -current 2002-10-23 09:10:23 +00:00
spkrio.h
tcic2_isa.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
tcom.c Use aprint_normal() in cfprint routines. 2003-01-01 00:10:15 +00:00
uha_isa.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
vga_isa.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
vga_isavar.h
wdc_isa.c The DMA support here never worked, so yank it out. 2003-03-03 22:07:21 +00:00
wds.c Remove assigned-to but not used variable. 2003-02-23 04:10:11 +00:00
wdsreg.h
weasel_isa.c
weaselreg.h
weaselvar.h
wss.c remove trailing \n in panic(). approved perry. 2002-09-27 15:35:29 +00:00
wss_isa.c Fix sizeof and whitespace bug from the script I'm using to do the 2002-10-02 03:10:45 +00:00
wssreg.h
wssvar.h
wt.c merge kqueue branch into -current 2002-10-23 09:10:23 +00:00
wtreg.h
ym.c
ymvar.h

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.