Finally!!
The much roumored replacement for our current IDE/ATA/ATAPI is
materialising in the CVS repositories around the globe.
So what does this bring us:
A new reengineered ATA/ATAPI subsystem, that tries to overcome
most of the deficiencies with the current drivers.
It supports PCI as well as ISA devices without all the hackery
in ide_pci.c to make PCI devices look like ISA counterparts.
It doesn't have the excessive wait problem on probe, in fact you
shouldn't notice any delay when your devices are getting probed.
Probing and attaching of devices are postponed until interrupts
are enabled (well almost, not finished yet for disks), making
things alot cleaner.
Improved performance, although DMA support is still WIP and not
in this pre alpha release, worldstone is faster with the new
driver compared to the old even with DMA.
So what does it take away:
There is NO support for old MFM/RLL/ESDI disks.
There is NO support for bad144, if your disk is bad, ditch it, it has
already outgrown its internal spare sectors, and is dying.
For you to try this out, you will have to modify your kernel config
file to use the "ata" controller instead of all wdc? entries.
example:
# for a PCI only system (most modern machines)
controller ata0
device atadisk0 # ATA disks
device atapicd0 # ATAPI CDROM's
device atapist0 # ATAPI tapes
#You should add the following on ISA systems:
controller ata1 at isa? port "IO_WD1" bio irq 14
controller ata2 at isa? port "IO_WD2" bio irq 15
You can leave it all in there, the system knows how to manage.
For now this driver reuses the device entries from the old system
(that will probably change later), but remember that disks are
now numbered in the sequence they are found (like the SCSI system)
not as absolute positions as the old system.
Although I have tested this on all the systems I can get my hands on,
there might very well be gremlins in there, so use AT YOU OWN RISK!!
This is still WIP, so there are lots of rough edges and unfinished
things in there, and what I have in my lab might look very different
from whats in CVS at any given time. So please have all eventual
changes go through me, or chances are they just dissapears...
I would very much like to hear from you, both good and bad news
are very welcome.
Enjoy!!
-Søren
1999-03-01 21:19:19 +00:00
|
|
|
|
/*-
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|
|
|
|
* Copyright (c) 1998,1999 S<EFBFBD>ren Schmidt
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer,
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* without modification, immediately at the beginning of the file.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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1999-03-03 21:10:29 +00:00
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|
* $Id: ata-disk.c,v 1.1 1999/03/01 21:19:18 sos Exp $
|
Finally!!
The much roumored replacement for our current IDE/ATA/ATAPI is
materialising in the CVS repositories around the globe.
So what does this bring us:
A new reengineered ATA/ATAPI subsystem, that tries to overcome
most of the deficiencies with the current drivers.
It supports PCI as well as ISA devices without all the hackery
in ide_pci.c to make PCI devices look like ISA counterparts.
It doesn't have the excessive wait problem on probe, in fact you
shouldn't notice any delay when your devices are getting probed.
Probing and attaching of devices are postponed until interrupts
are enabled (well almost, not finished yet for disks), making
things alot cleaner.
Improved performance, although DMA support is still WIP and not
in this pre alpha release, worldstone is faster with the new
driver compared to the old even with DMA.
So what does it take away:
There is NO support for old MFM/RLL/ESDI disks.
There is NO support for bad144, if your disk is bad, ditch it, it has
already outgrown its internal spare sectors, and is dying.
For you to try this out, you will have to modify your kernel config
file to use the "ata" controller instead of all wdc? entries.
example:
# for a PCI only system (most modern machines)
controller ata0
device atadisk0 # ATA disks
device atapicd0 # ATAPI CDROM's
device atapist0 # ATAPI tapes
#You should add the following on ISA systems:
controller ata1 at isa? port "IO_WD1" bio irq 14
controller ata2 at isa? port "IO_WD2" bio irq 15
You can leave it all in there, the system knows how to manage.
For now this driver reuses the device entries from the old system
(that will probably change later), but remember that disks are
now numbered in the sequence they are found (like the SCSI system)
not as absolute positions as the old system.
Although I have tested this on all the systems I can get my hands on,
there might very well be gremlins in there, so use AT YOU OWN RISK!!
This is still WIP, so there are lots of rough edges and unfinished
things in there, and what I have in my lab might look very different
from whats in CVS at any given time. So please have all eventual
changes go through me, or chances are they just dissapears...
I would very much like to hear from you, both good and bad news
are very welcome.
Enjoy!!
-Søren
1999-03-01 21:19:19 +00:00
|
|
|
|
*/
|
|
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|
|
|
|
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|
|
#include "ata.h"
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|
|
#include "atadisk.h"
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|
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|
|
#include "opt_devfs.h"
|
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|
|
#if NATA > 0 && NATADISK > 0
|
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|
|
#include <sys/param.h>
|
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|
|
|
|
#include <sys/systm.h>
|
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|
|
|
|
#include <sys/kernel.h>
|
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|
|
|
|
#include <sys/proc.h>
|
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|
|
|
|
#include <sys/device.h>
|
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|
|
|
|
#include <sys/malloc.h>
|
|
|
|
|
|
#include <sys/buf.h>
|
|
|
|
|
|
#include <sys/disklabel.h>
|
|
|
|
|
|
#include <sys/diskslice.h>
|
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|
|
|
|
#include <sys/devicestat.h>
|
|
|
|
|
|
#include <sys/fcntl.h>
|
|
|
|
|
|
#include <sys/conf.h>
|
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|
|
|
|
#include <sys/stat.h>
|
|
|
|
|
|
#ifdef DEVFS
|
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|
|
|
|
#include <sys/devfsext.h>
|
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|
|
|
|
#endif
|
|
|
|
|
|
#include <machine/clock.h>
|
|
|
|
|
|
#include <i386/isa/isa.h>
|
|
|
|
|
|
#include <i386/isa/isa_device.h>
|
|
|
|
|
|
#include <dev/ata/ata-all.h>
|
|
|
|
|
|
#include <dev/ata/ata-disk.h>
|
|
|
|
|
|
|
|
|
|
|
|
static d_open_t adopen;
|
|
|
|
|
|
static d_close_t adclose;
|
|
|
|
|
|
static d_read_t adread;
|
1999-03-03 21:10:29 +00:00
|
|
|
|
static d_write_t adwrite;
|
Finally!!
The much roumored replacement for our current IDE/ATA/ATAPI is
materialising in the CVS repositories around the globe.
So what does this bring us:
A new reengineered ATA/ATAPI subsystem, that tries to overcome
most of the deficiencies with the current drivers.
It supports PCI as well as ISA devices without all the hackery
in ide_pci.c to make PCI devices look like ISA counterparts.
It doesn't have the excessive wait problem on probe, in fact you
shouldn't notice any delay when your devices are getting probed.
Probing and attaching of devices are postponed until interrupts
are enabled (well almost, not finished yet for disks), making
things alot cleaner.
Improved performance, although DMA support is still WIP and not
in this pre alpha release, worldstone is faster with the new
driver compared to the old even with DMA.
So what does it take away:
There is NO support for old MFM/RLL/ESDI disks.
There is NO support for bad144, if your disk is bad, ditch it, it has
already outgrown its internal spare sectors, and is dying.
For you to try this out, you will have to modify your kernel config
file to use the "ata" controller instead of all wdc? entries.
example:
# for a PCI only system (most modern machines)
controller ata0
device atadisk0 # ATA disks
device atapicd0 # ATAPI CDROM's
device atapist0 # ATAPI tapes
#You should add the following on ISA systems:
controller ata1 at isa? port "IO_WD1" bio irq 14
controller ata2 at isa? port "IO_WD2" bio irq 15
You can leave it all in there, the system knows how to manage.
For now this driver reuses the device entries from the old system
(that will probably change later), but remember that disks are
now numbered in the sequence they are found (like the SCSI system)
not as absolute positions as the old system.
Although I have tested this on all the systems I can get my hands on,
there might very well be gremlins in there, so use AT YOU OWN RISK!!
This is still WIP, so there are lots of rough edges and unfinished
things in there, and what I have in my lab might look very different
from whats in CVS at any given time. So please have all eventual
changes go through me, or chances are they just dissapears...
I would very much like to hear from you, both good and bad news
are very welcome.
Enjoy!!
-Søren
1999-03-01 21:19:19 +00:00
|
|
|
|
static d_ioctl_t adioctl;
|
|
|
|
|
|
static d_strategy_t adstrategy;
|
|
|
|
|
|
static d_psize_t adpsize;
|
|
|
|
|
|
|
|
|
|
|
|
#define BDEV_MAJOR 0
|
|
|
|
|
|
#define CDEV_MAJOR 3
|
|
|
|
|
|
static struct cdevsw ad_cdevsw = {
|
|
|
|
|
|
adopen, adclose, adread, adwrite,
|
|
|
|
|
|
adioctl, nostop, nullreset, nodevtotty,
|
|
|
|
|
|
seltrue, nommap, adstrategy, "ad",
|
|
|
|
|
|
NULL, -1, nodump, adpsize,
|
|
|
|
|
|
D_DISK, 0, -1
|
|
|
|
|
|
};
|
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|
|
|
|
|
|
|
|
|
|
/* misc defines */
|
|
|
|
|
|
#define UNIT(dev) (dev>>3 & 0x1f) /* assume 8 minor # per unit */
|
|
|
|
|
|
#define NUNIT 16 /* max # of devices */
|
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|
|
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|
|
|
|
|
|
|
/* prototypes */
|
|
|
|
|
|
static void ad_attach(void *);
|
|
|
|
|
|
static void ad_strategy(struct buf *);
|
|
|
|
|
|
static void ad_start(struct ad_softc *);
|
|
|
|
|
|
static void ad_sleep(struct ad_softc *, int8_t *);
|
|
|
|
|
|
static int32_t ad_command(struct ad_softc *, u_int32_t, u_int32_t, u_int32_t, u_int32_t, u_int32_t);
|
|
|
|
|
|
static int8_t ad_version(u_int16_t);
|
|
|
|
|
|
static void ad_drvinit(void);
|
|
|
|
|
|
|
|
|
|
|
|
static struct ad_softc *adtab[NUNIT];
|
|
|
|
|
|
static int32_t adnlun = 0; /* number of config'd drives */
|
|
|
|
|
|
static struct intr_config_hook *ad_attach_hook;
|
|
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
|
ad_attach(void *notused)
|
|
|
|
|
|
{
|
|
|
|
|
|
struct ad_softc *adp;
|
1999-03-03 21:10:29 +00:00
|
|
|
|
int32_t ctlr, dev, secsperint;
|
Finally!!
The much roumored replacement for our current IDE/ATA/ATAPI is
materialising in the CVS repositories around the globe.
So what does this bring us:
A new reengineered ATA/ATAPI subsystem, that tries to overcome
most of the deficiencies with the current drivers.
It supports PCI as well as ISA devices without all the hackery
in ide_pci.c to make PCI devices look like ISA counterparts.
It doesn't have the excessive wait problem on probe, in fact you
shouldn't notice any delay when your devices are getting probed.
Probing and attaching of devices are postponed until interrupts
are enabled (well almost, not finished yet for disks), making
things alot cleaner.
Improved performance, although DMA support is still WIP and not
in this pre alpha release, worldstone is faster with the new
driver compared to the old even with DMA.
So what does it take away:
There is NO support for old MFM/RLL/ESDI disks.
There is NO support for bad144, if your disk is bad, ditch it, it has
already outgrown its internal spare sectors, and is dying.
For you to try this out, you will have to modify your kernel config
file to use the "ata" controller instead of all wdc? entries.
example:
# for a PCI only system (most modern machines)
controller ata0
device atadisk0 # ATA disks
device atapicd0 # ATAPI CDROM's
device atapist0 # ATAPI tapes
#You should add the following on ISA systems:
controller ata1 at isa? port "IO_WD1" bio irq 14
controller ata2 at isa? port "IO_WD2" bio irq 15
You can leave it all in there, the system knows how to manage.
For now this driver reuses the device entries from the old system
(that will probably change later), but remember that disks are
now numbered in the sequence they are found (like the SCSI system)
not as absolute positions as the old system.
Although I have tested this on all the systems I can get my hands on,
there might very well be gremlins in there, so use AT YOU OWN RISK!!
This is still WIP, so there are lots of rough edges and unfinished
things in there, and what I have in my lab might look very different
from whats in CVS at any given time. So please have all eventual
changes go through me, or chances are they just dissapears...
I would very much like to hear from you, both good and bad news
are very welcome.
Enjoy!!
-Søren
1999-03-01 21:19:19 +00:00
|
|
|
|
int8_t model_buf[40+1];
|
|
|
|
|
|
int8_t revision_buf[8+1];
|
|
|
|
|
|
|
|
|
|
|
|
/* now, run through atadevices and look for ATA disks */
|
|
|
|
|
|
for (ctlr=0; ctlr<MAXATA && atadevices[ctlr]; ctlr++) {
|
|
|
|
|
|
for (dev=0; dev<2; dev++) {
|
|
|
|
|
|
if (atadevices[ctlr]->ata_parm[dev]) {
|
1999-03-03 21:10:29 +00:00
|
|
|
|
#ifdef ATA_STATIC_ID
|
|
|
|
|
|
adnlun = dev + ctlr * 2;
|
|
|
|
|
|
#endif
|
Finally!!
The much roumored replacement for our current IDE/ATA/ATAPI is
materialising in the CVS repositories around the globe.
So what does this bring us:
A new reengineered ATA/ATAPI subsystem, that tries to overcome
most of the deficiencies with the current drivers.
It supports PCI as well as ISA devices without all the hackery
in ide_pci.c to make PCI devices look like ISA counterparts.
It doesn't have the excessive wait problem on probe, in fact you
shouldn't notice any delay when your devices are getting probed.
Probing and attaching of devices are postponed until interrupts
are enabled (well almost, not finished yet for disks), making
things alot cleaner.
Improved performance, although DMA support is still WIP and not
in this pre alpha release, worldstone is faster with the new
driver compared to the old even with DMA.
So what does it take away:
There is NO support for old MFM/RLL/ESDI disks.
There is NO support for bad144, if your disk is bad, ditch it, it has
already outgrown its internal spare sectors, and is dying.
For you to try this out, you will have to modify your kernel config
file to use the "ata" controller instead of all wdc? entries.
example:
# for a PCI only system (most modern machines)
controller ata0
device atadisk0 # ATA disks
device atapicd0 # ATAPI CDROM's
device atapist0 # ATAPI tapes
#You should add the following on ISA systems:
controller ata1 at isa? port "IO_WD1" bio irq 14
controller ata2 at isa? port "IO_WD2" bio irq 15
You can leave it all in there, the system knows how to manage.
For now this driver reuses the device entries from the old system
(that will probably change later), but remember that disks are
now numbered in the sequence they are found (like the SCSI system)
not as absolute positions as the old system.
Although I have tested this on all the systems I can get my hands on,
there might very well be gremlins in there, so use AT YOU OWN RISK!!
This is still WIP, so there are lots of rough edges and unfinished
things in there, and what I have in my lab might look very different
from whats in CVS at any given time. So please have all eventual
changes go through me, or chances are they just dissapears...
I would very much like to hear from you, both good and bad news
are very welcome.
Enjoy!!
-Søren
1999-03-01 21:19:19 +00:00
|
|
|
|
adp = adtab[adnlun];
|
|
|
|
|
|
if (adp)
|
|
|
|
|
|
printf("ad%d: unit already attached\n", adnlun);
|
|
|
|
|
|
adp = malloc(sizeof(struct ad_softc), M_DEVBUF, M_NOWAIT);
|
|
|
|
|
|
if (adp == NULL)
|
|
|
|
|
|
printf("ad%d: failed to allocate driver storage\n", adnlun);
|
|
|
|
|
|
bzero(adp, sizeof(struct ad_softc));
|
|
|
|
|
|
adp->controller = atadevices[ctlr];
|
|
|
|
|
|
adp->ata_parm = atadevices[ctlr]->ata_parm[dev];
|
|
|
|
|
|
adp->unit = (dev == 0) ? ATA_MASTER : ATA_SLAVE;
|
1999-03-03 21:10:29 +00:00
|
|
|
|
adp->lun = adnlun;
|
Finally!!
The much roumored replacement for our current IDE/ATA/ATAPI is
materialising in the CVS repositories around the globe.
So what does this bring us:
A new reengineered ATA/ATAPI subsystem, that tries to overcome
most of the deficiencies with the current drivers.
It supports PCI as well as ISA devices without all the hackery
in ide_pci.c to make PCI devices look like ISA counterparts.
It doesn't have the excessive wait problem on probe, in fact you
shouldn't notice any delay when your devices are getting probed.
Probing and attaching of devices are postponed until interrupts
are enabled (well almost, not finished yet for disks), making
things alot cleaner.
Improved performance, although DMA support is still WIP and not
in this pre alpha release, worldstone is faster with the new
driver compared to the old even with DMA.
So what does it take away:
There is NO support for old MFM/RLL/ESDI disks.
There is NO support for bad144, if your disk is bad, ditch it, it has
already outgrown its internal spare sectors, and is dying.
For you to try this out, you will have to modify your kernel config
file to use the "ata" controller instead of all wdc? entries.
example:
# for a PCI only system (most modern machines)
controller ata0
device atadisk0 # ATA disks
device atapicd0 # ATAPI CDROM's
device atapist0 # ATAPI tapes
#You should add the following on ISA systems:
controller ata1 at isa? port "IO_WD1" bio irq 14
controller ata2 at isa? port "IO_WD2" bio irq 15
You can leave it all in there, the system knows how to manage.
For now this driver reuses the device entries from the old system
(that will probably change later), but remember that disks are
now numbered in the sequence they are found (like the SCSI system)
not as absolute positions as the old system.
Although I have tested this on all the systems I can get my hands on,
there might very well be gremlins in there, so use AT YOU OWN RISK!!
This is still WIP, so there are lots of rough edges and unfinished
things in there, and what I have in my lab might look very different
from whats in CVS at any given time. So please have all eventual
changes go through me, or chances are they just dissapears...
I would very much like to hear from you, both good and bad news
are very welcome.
Enjoy!!
-Søren
1999-03-01 21:19:19 +00:00
|
|
|
|
adp->cylinders = adp->ata_parm->cylinders;
|
|
|
|
|
|
adp->heads = adp->ata_parm->heads;
|
|
|
|
|
|
adp->sectors = adp->ata_parm->sectors;
|
|
|
|
|
|
adp->total_secs = adp->ata_parm->lbasize;
|
1999-03-03 21:10:29 +00:00
|
|
|
|
if (!adp->total_secs)
|
|
|
|
|
|
adp->total_secs = adp->cylinders*adp->heads*adp->sectors;
|
|
|
|
|
|
if (adp->cylinders == 16383)
|
|
|
|
|
|
adp->cylinders = adp->total_secs/(adp->heads*adp->sectors);
|
Finally!!
The much roumored replacement for our current IDE/ATA/ATAPI is
materialising in the CVS repositories around the globe.
So what does this bring us:
A new reengineered ATA/ATAPI subsystem, that tries to overcome
most of the deficiencies with the current drivers.
It supports PCI as well as ISA devices without all the hackery
in ide_pci.c to make PCI devices look like ISA counterparts.
It doesn't have the excessive wait problem on probe, in fact you
shouldn't notice any delay when your devices are getting probed.
Probing and attaching of devices are postponed until interrupts
are enabled (well almost, not finished yet for disks), making
things alot cleaner.
Improved performance, although DMA support is still WIP and not
in this pre alpha release, worldstone is faster with the new
driver compared to the old even with DMA.
So what does it take away:
There is NO support for old MFM/RLL/ESDI disks.
There is NO support for bad144, if your disk is bad, ditch it, it has
already outgrown its internal spare sectors, and is dying.
For you to try this out, you will have to modify your kernel config
file to use the "ata" controller instead of all wdc? entries.
example:
# for a PCI only system (most modern machines)
controller ata0
device atadisk0 # ATA disks
device atapicd0 # ATAPI CDROM's
device atapist0 # ATAPI tapes
#You should add the following on ISA systems:
controller ata1 at isa? port "IO_WD1" bio irq 14
controller ata2 at isa? port "IO_WD2" bio irq 15
You can leave it all in there, the system knows how to manage.
For now this driver reuses the device entries from the old system
(that will probably change later), but remember that disks are
now numbered in the sequence they are found (like the SCSI system)
not as absolute positions as the old system.
Although I have tested this on all the systems I can get my hands on,
there might very well be gremlins in there, so use AT YOU OWN RISK!!
This is still WIP, so there are lots of rough edges and unfinished
things in there, and what I have in my lab might look very different
from whats in CVS at any given time. So please have all eventual
changes go through me, or chances are they just dissapears...
I would very much like to hear from you, both good and bad news
are very welcome.
Enjoy!!
-Søren
1999-03-01 21:19:19 +00:00
|
|
|
|
|
|
|
|
|
|
/* support multiple sectors / interrupt ? */
|
1999-03-03 21:10:29 +00:00
|
|
|
|
adp->transfersize = DEV_BSIZE;
|
|
|
|
|
|
secsperint = min(adp->ata_parm->nsecperint, 16);
|
|
|
|
|
|
if (!ad_command(adp, ATA_C_SET_MULTI, 0, 0, 0, secsperint) &&
|
|
|
|
|
|
ata_wait(adp->controller, ATA_S_DRDY) >= 0)
|
|
|
|
|
|
adp->transfersize *= secsperint;
|
|
|
|
|
|
|
Finally!!
The much roumored replacement for our current IDE/ATA/ATAPI is
materialising in the CVS repositories around the globe.
So what does this bring us:
A new reengineered ATA/ATAPI subsystem, that tries to overcome
most of the deficiencies with the current drivers.
It supports PCI as well as ISA devices without all the hackery
in ide_pci.c to make PCI devices look like ISA counterparts.
It doesn't have the excessive wait problem on probe, in fact you
shouldn't notice any delay when your devices are getting probed.
Probing and attaching of devices are postponed until interrupts
are enabled (well almost, not finished yet for disks), making
things alot cleaner.
Improved performance, although DMA support is still WIP and not
in this pre alpha release, worldstone is faster with the new
driver compared to the old even with DMA.
So what does it take away:
There is NO support for old MFM/RLL/ESDI disks.
There is NO support for bad144, if your disk is bad, ditch it, it has
already outgrown its internal spare sectors, and is dying.
For you to try this out, you will have to modify your kernel config
file to use the "ata" controller instead of all wdc? entries.
example:
# for a PCI only system (most modern machines)
controller ata0
device atadisk0 # ATA disks
device atapicd0 # ATAPI CDROM's
device atapist0 # ATAPI tapes
#You should add the following on ISA systems:
controller ata1 at isa? port "IO_WD1" bio irq 14
controller ata2 at isa? port "IO_WD2" bio irq 15
You can leave it all in there, the system knows how to manage.
For now this driver reuses the device entries from the old system
(that will probably change later), but remember that disks are
now numbered in the sequence they are found (like the SCSI system)
not as absolute positions as the old system.
Although I have tested this on all the systems I can get my hands on,
there might very well be gremlins in there, so use AT YOU OWN RISK!!
This is still WIP, so there are lots of rough edges and unfinished
things in there, and what I have in my lab might look very different
from whats in CVS at any given time. So please have all eventual
changes go through me, or chances are they just dissapears...
I would very much like to hear from you, both good and bad news
are very welcome.
Enjoy!!
-Søren
1999-03-01 21:19:19 +00:00
|
|
|
|
bpack(adp->ata_parm->model, model_buf, sizeof(model_buf));
|
|
|
|
|
|
bpack(adp->ata_parm->revision, revision_buf,
|
|
|
|
|
|
sizeof(revision_buf));
|
|
|
|
|
|
printf("ad%d: <%s/%s> ATA-%c disk at ata%d as %s\n",
|
|
|
|
|
|
adnlun,
|
|
|
|
|
|
model_buf, revision_buf,
|
|
|
|
|
|
ad_version(adp->ata_parm->versmajor),
|
|
|
|
|
|
ctlr,
|
|
|
|
|
|
(adp->unit == ATA_MASTER) ? "master" : "slave ");
|
|
|
|
|
|
printf("ad%d: %luMB (%u sectors), "
|
|
|
|
|
|
"%u cyls, %u heads, %u S/T, %u B/S\n",
|
|
|
|
|
|
adnlun,
|
|
|
|
|
|
adp->total_secs / ((1024L * 1024L) / DEV_BSIZE),
|
|
|
|
|
|
adp->total_secs,
|
|
|
|
|
|
adp->cylinders,
|
|
|
|
|
|
adp->heads,
|
|
|
|
|
|
adp->sectors,
|
|
|
|
|
|
DEV_BSIZE);
|
|
|
|
|
|
printf("ad%d: %d secs/int, %d depth queue \n",
|
|
|
|
|
|
adnlun, adp->transfersize / DEV_BSIZE,
|
|
|
|
|
|
adp->ata_parm->queuelen & 0x1f);
|
|
|
|
|
|
devstat_add_entry(&adp->stats, "ad", adnlun, DEV_BSIZE,
|
|
|
|
|
|
DEVSTAT_NO_ORDERED_TAGS,
|
|
|
|
|
|
DEVSTAT_TYPE_DIRECT | DEVSTAT_TYPE_IF_IDE,
|
|
|
|
|
|
0x180);
|
1999-03-03 21:10:29 +00:00
|
|
|
|
#ifdef DEVFS
|
|
|
|
|
|
adp->cdevs_token = devfs_add_devswf(&ad_cdevsw,
|
|
|
|
|
|
dkmakeminor(adp->lun, 0, 0),
|
|
|
|
|
|
DV_CHR,
|
|
|
|
|
|
UID_ROOT, GID_OPERATOR,
|
|
|
|
|
|
0640, "rad%d", adp->lun);
|
|
|
|
|
|
adp->bdevs_token = devfs_add_devswf(&ad_cdevsw,
|
|
|
|
|
|
dkmakeminor(adp->lun, 0, 0),
|
|
|
|
|
|
DV_BLK,
|
|
|
|
|
|
UID_ROOT, GID_OPERATOR,
|
|
|
|
|
|
0640, "ad%d", adp->lun);
|
|
|
|
|
|
#endif
|
Finally!!
The much roumored replacement for our current IDE/ATA/ATAPI is
materialising in the CVS repositories around the globe.
So what does this bring us:
A new reengineered ATA/ATAPI subsystem, that tries to overcome
most of the deficiencies with the current drivers.
It supports PCI as well as ISA devices without all the hackery
in ide_pci.c to make PCI devices look like ISA counterparts.
It doesn't have the excessive wait problem on probe, in fact you
shouldn't notice any delay when your devices are getting probed.
Probing and attaching of devices are postponed until interrupts
are enabled (well almost, not finished yet for disks), making
things alot cleaner.
Improved performance, although DMA support is still WIP and not
in this pre alpha release, worldstone is faster with the new
driver compared to the old even with DMA.
So what does it take away:
There is NO support for old MFM/RLL/ESDI disks.
There is NO support for bad144, if your disk is bad, ditch it, it has
already outgrown its internal spare sectors, and is dying.
For you to try this out, you will have to modify your kernel config
file to use the "ata" controller instead of all wdc? entries.
example:
# for a PCI only system (most modern machines)
controller ata0
device atadisk0 # ATA disks
device atapicd0 # ATAPI CDROM's
device atapist0 # ATAPI tapes
#You should add the following on ISA systems:
controller ata1 at isa? port "IO_WD1" bio irq 14
controller ata2 at isa? port "IO_WD2" bio irq 15
You can leave it all in there, the system knows how to manage.
For now this driver reuses the device entries from the old system
(that will probably change later), but remember that disks are
now numbered in the sequence they are found (like the SCSI system)
not as absolute positions as the old system.
Although I have tested this on all the systems I can get my hands on,
there might very well be gremlins in there, so use AT YOU OWN RISK!!
This is still WIP, so there are lots of rough edges and unfinished
things in there, and what I have in my lab might look very different
from whats in CVS at any given time. So please have all eventual
changes go through me, or chances are they just dissapears...
I would very much like to hear from you, both good and bad news
are very welcome.
Enjoy!!
-Søren
1999-03-01 21:19:19 +00:00
|
|
|
|
bufq_init(&adp->queue);
|
|
|
|
|
|
adtab[adnlun++] = adp;
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
config_intrhook_disestablish(ad_attach_hook);
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static int32_t
|
|
|
|
|
|
adopen(dev_t dev, int32_t flags, int32_t fmt, struct proc *p)
|
|
|
|
|
|
{
|
|
|
|
|
|
int32_t lun = UNIT(dev);
|
|
|
|
|
|
struct ad_softc *adp;
|
|
|
|
|
|
struct disklabel label;
|
|
|
|
|
|
int32_t error;
|
|
|
|
|
|
|
|
|
|
|
|
#ifdef AD_DEBUG
|
|
|
|
|
|
printf("adopen: lun=%d adnlun=%d\n", lun, adnlun);
|
|
|
|
|
|
#endif
|
|
|
|
|
|
if (lun >= adnlun || !(adp = adtab[lun]))
|
|
|
|
|
|
return ENXIO;
|
|
|
|
|
|
|
|
|
|
|
|
/* spinwait if anybody else is reading the disk label */
|
|
|
|
|
|
while (adp->flags & AD_F_LABELLING)
|
|
|
|
|
|
tsleep((caddr_t)&adp->flags, PZERO - 1, "adop1", 1);
|
|
|
|
|
|
|
|
|
|
|
|
/* protect agains label race */
|
|
|
|
|
|
adp->flags |= AD_F_LABELLING;
|
|
|
|
|
|
|
|
|
|
|
|
/* build disklabel and initilize slice tables */
|
|
|
|
|
|
bzero(&label, sizeof label);
|
|
|
|
|
|
label.d_secsize = DEV_BSIZE;
|
|
|
|
|
|
label.d_nsectors = adp->sectors;
|
|
|
|
|
|
label.d_ntracks = adp->heads;
|
|
|
|
|
|
label.d_ncylinders = adp->cylinders;
|
|
|
|
|
|
label.d_secpercyl = adp->sectors * adp->heads;
|
|
|
|
|
|
label.d_secperunit = adp->total_secs;
|
|
|
|
|
|
|
|
|
|
|
|
error = dsopen("ad", dev, fmt, 0, &adp->slices, &label, ad_strategy,
|
|
|
|
|
|
(ds_setgeom_t *)NULL, &ad_cdevsw);
|
|
|
|
|
|
|
|
|
|
|
|
adp->flags &= ~AD_F_LABELLING;
|
|
|
|
|
|
ad_sleep(adp, "adop2");
|
|
|
|
|
|
return error;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static int32_t
|
|
|
|
|
|
adclose(dev_t dev, int32_t flags, int32_t fmt, struct proc *p)
|
|
|
|
|
|
{
|
|
|
|
|
|
int32_t lun = UNIT(dev);
|
|
|
|
|
|
struct ad_softc *adp;
|
|
|
|
|
|
|
|
|
|
|
|
#ifdef AD_DEBUG
|
|
|
|
|
|
printf("adclose: lun=%d adnlun=%d\n", lun, adnlun);
|
|
|
|
|
|
#endif
|
|
|
|
|
|
if (lun >= adnlun || !(adp = adtab[lun]))
|
|
|
|
|
|
return ENXIO;
|
|
|
|
|
|
|
|
|
|
|
|
dsclose(dev, fmt, adp->slices);
|
|
|
|
|
|
return 0;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static int32_t
|
|
|
|
|
|
adread(dev_t dev, struct uio *uio, int32_t ioflag)
|
|
|
|
|
|
{
|
|
|
|
|
|
return physio(adstrategy, NULL, dev, 1, minphys, uio);
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static int32_t
|
|
|
|
|
|
adwrite(dev_t dev, struct uio *uio, int32_t ioflag)
|
|
|
|
|
|
{
|
|
|
|
|
|
return physio(adstrategy, NULL, dev, 0, minphys, uio);
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static int32_t
|
|
|
|
|
|
adioctl(dev_t dev, u_long cmd, caddr_t addr, int32_t flags, struct proc *p)
|
|
|
|
|
|
{
|
|
|
|
|
|
struct ad_softc *adp;
|
|
|
|
|
|
int32_t lun = UNIT(dev);
|
|
|
|
|
|
int32_t error = 0;
|
|
|
|
|
|
|
|
|
|
|
|
if (lun >= adnlun || !(adp = adtab[lun]))
|
|
|
|
|
|
return ENXIO;
|
|
|
|
|
|
|
|
|
|
|
|
ad_sleep(adp, "adioct");
|
|
|
|
|
|
error = dsioctl("sd", dev, cmd, addr, flags, &adp->slices,
|
|
|
|
|
|
ad_strategy, (ds_setgeom_t *)NULL);
|
|
|
|
|
|
|
|
|
|
|
|
if (error != ENOIOCTL)
|
|
|
|
|
|
return error;
|
|
|
|
|
|
return ENOTTY;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
|
adstrategy(struct buf *bp)
|
|
|
|
|
|
{
|
|
|
|
|
|
struct ad_softc *adp;
|
|
|
|
|
|
int32_t lun = UNIT(bp->b_dev);
|
|
|
|
|
|
int32_t s;
|
|
|
|
|
|
|
|
|
|
|
|
#ifdef AD_DEBUG
|
|
|
|
|
|
printf("adstrategy: entered\n");
|
|
|
|
|
|
#endif
|
|
|
|
|
|
if (lun >= adnlun || bp->b_blkno < 0 || !(adp = adtab[lun])
|
|
|
|
|
|
|| bp->b_bcount % DEV_BSIZE != 0) {
|
|
|
|
|
|
bp->b_error = EINVAL;
|
|
|
|
|
|
bp->b_flags |= B_ERROR;
|
|
|
|
|
|
goto done;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
if (dscheck(bp, adp->slices) <= 0)
|
|
|
|
|
|
goto done;
|
|
|
|
|
|
|
|
|
|
|
|
s = splbio();
|
|
|
|
|
|
|
|
|
|
|
|
/* hang around if somebody else is labelling */
|
|
|
|
|
|
if (adp->flags & AD_F_LABELLING)
|
|
|
|
|
|
ad_sleep(adp, "adlab");
|
|
|
|
|
|
|
|
|
|
|
|
bufqdisksort(&adp->queue, bp);
|
|
|
|
|
|
|
|
|
|
|
|
if (!adp->active)
|
|
|
|
|
|
ad_start(adp);
|
|
|
|
|
|
|
|
|
|
|
|
if (!adp->controller->active)
|
|
|
|
|
|
ata_start(adp->controller);
|
|
|
|
|
|
|
|
|
|
|
|
devstat_start_transaction(&adp->stats);
|
|
|
|
|
|
|
|
|
|
|
|
splx(s);
|
|
|
|
|
|
return;
|
|
|
|
|
|
|
|
|
|
|
|
done:
|
|
|
|
|
|
s = splbio();
|
|
|
|
|
|
biodone(bp);
|
|
|
|
|
|
splx(s);
|
|
|
|
|
|
}
|
|
|
|
|
|
|
1999-03-03 21:10:29 +00:00
|
|
|
|
static int32_t
|
|
|
|
|
|
adpsize(dev_t dev)
|
|
|
|
|
|
{
|
|
|
|
|
|
struct ad_softc *adp;
|
|
|
|
|
|
int32_t lun = UNIT(dev);
|
|
|
|
|
|
|
|
|
|
|
|
if (lun >= adnlun || !(adp = adtab[lun]))
|
|
|
|
|
|
return -1;
|
|
|
|
|
|
return dssize(dev, &adp->slices, adopen, adclose);
|
|
|
|
|
|
}
|
|
|
|
|
|
|
Finally!!
The much roumored replacement for our current IDE/ATA/ATAPI is
materialising in the CVS repositories around the globe.
So what does this bring us:
A new reengineered ATA/ATAPI subsystem, that tries to overcome
most of the deficiencies with the current drivers.
It supports PCI as well as ISA devices without all the hackery
in ide_pci.c to make PCI devices look like ISA counterparts.
It doesn't have the excessive wait problem on probe, in fact you
shouldn't notice any delay when your devices are getting probed.
Probing and attaching of devices are postponed until interrupts
are enabled (well almost, not finished yet for disks), making
things alot cleaner.
Improved performance, although DMA support is still WIP and not
in this pre alpha release, worldstone is faster with the new
driver compared to the old even with DMA.
So what does it take away:
There is NO support for old MFM/RLL/ESDI disks.
There is NO support for bad144, if your disk is bad, ditch it, it has
already outgrown its internal spare sectors, and is dying.
For you to try this out, you will have to modify your kernel config
file to use the "ata" controller instead of all wdc? entries.
example:
# for a PCI only system (most modern machines)
controller ata0
device atadisk0 # ATA disks
device atapicd0 # ATAPI CDROM's
device atapist0 # ATAPI tapes
#You should add the following on ISA systems:
controller ata1 at isa? port "IO_WD1" bio irq 14
controller ata2 at isa? port "IO_WD2" bio irq 15
You can leave it all in there, the system knows how to manage.
For now this driver reuses the device entries from the old system
(that will probably change later), but remember that disks are
now numbered in the sequence they are found (like the SCSI system)
not as absolute positions as the old system.
Although I have tested this on all the systems I can get my hands on,
there might very well be gremlins in there, so use AT YOU OWN RISK!!
This is still WIP, so there are lots of rough edges and unfinished
things in there, and what I have in my lab might look very different
from whats in CVS at any given time. So please have all eventual
changes go through me, or chances are they just dissapears...
I would very much like to hear from you, both good and bad news
are very welcome.
Enjoy!!
-Søren
1999-03-01 21:19:19 +00:00
|
|
|
|
static void
|
|
|
|
|
|
ad_strategy(struct buf *bp)
|
|
|
|
|
|
{
|
|
|
|
|
|
adstrategy(bp);
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
|
ad_start(struct ad_softc *adp)
|
|
|
|
|
|
{
|
|
|
|
|
|
struct buf *bp;
|
|
|
|
|
|
|
|
|
|
|
|
#ifdef AD_DEBUG
|
|
|
|
|
|
printf("ad_start:\n");
|
|
|
|
|
|
#endif
|
|
|
|
|
|
/* newer called when adp->active != 0 SOS */
|
|
|
|
|
|
if (adp->active)
|
|
|
|
|
|
return;
|
|
|
|
|
|
|
|
|
|
|
|
if (!(bp = bufq_first(&adp->queue)))
|
|
|
|
|
|
return;
|
|
|
|
|
|
|
|
|
|
|
|
bp->b_driver1 = adp;
|
|
|
|
|
|
bufq_remove(&adp->queue, bp);
|
|
|
|
|
|
|
|
|
|
|
|
/* link onto controller queue */
|
|
|
|
|
|
bufq_insert_tail(&adp->controller->ata_queue, bp);
|
|
|
|
|
|
|
|
|
|
|
|
/* mark the drive as busy */
|
|
|
|
|
|
adp->active = 1;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
|
ad_transfer(struct buf *bp)
|
|
|
|
|
|
{
|
|
|
|
|
|
struct ad_softc *adp;
|
|
|
|
|
|
u_int32_t blknum, secsprcyl;
|
|
|
|
|
|
u_int32_t cylinder, head, sector, count, command;
|
|
|
|
|
|
|
|
|
|
|
|
/* get request params */
|
|
|
|
|
|
adp = bp->b_driver1;
|
|
|
|
|
|
|
|
|
|
|
|
/* calculate transfer details */
|
|
|
|
|
|
blknum = bp->b_pblkno + (adp->donecount / DEV_BSIZE);
|
|
|
|
|
|
|
|
|
|
|
|
#ifdef AD_DEBUG
|
|
|
|
|
|
printf("ad_transfer: blknum=%d\n", blknum);
|
|
|
|
|
|
#endif
|
|
|
|
|
|
if (adp->donecount == 0) {
|
|
|
|
|
|
|
|
|
|
|
|
/* setup transfer parameters */
|
|
|
|
|
|
adp->bytecount = bp->b_bcount;
|
|
|
|
|
|
secsprcyl = adp->sectors * adp->heads;
|
|
|
|
|
|
cylinder = blknum / secsprcyl;
|
|
|
|
|
|
head = (blknum % secsprcyl) / adp->sectors;
|
|
|
|
|
|
sector = blknum % adp->sectors;
|
|
|
|
|
|
count = howmany(adp->bytecount, DEV_BSIZE);
|
|
|
|
|
|
|
|
|
|
|
|
if (count > 255) /* SOS */
|
|
|
|
|
|
printf("ad_transfer: count=%d\n", count);
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* setup transfer length if multible sector access present */
|
|
|
|
|
|
adp->currentsize = min(adp->bytecount, adp->transfersize);
|
|
|
|
|
|
if (adp->currentsize > DEV_BSIZE)
|
|
|
|
|
|
command = (bp->b_flags&B_READ) ? ATA_C_READ_MULTI:ATA_C_WRITE_MULTI;
|
|
|
|
|
|
else
|
|
|
|
|
|
command = (bp->b_flags&B_READ) ? ATA_C_READ : ATA_C_WRITE;
|
|
|
|
|
|
|
|
|
|
|
|
/* ready to issue command ? */
|
|
|
|
|
|
while (ata_wait(adp->controller, 0) < 0) {
|
|
|
|
|
|
printf("ad_transfer: timeout waiting to give command");
|
|
|
|
|
|
/*ata_unwedge(adp->controller); SOS */
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
outb(adp->controller->ioaddr + ATA_DRIVE, ATA_D_IBM | adp->unit | head);
|
|
|
|
|
|
outb(adp->controller->ioaddr + ATA_PRECOMP, 0); /* no precompensation */
|
|
|
|
|
|
outb(adp->controller->ioaddr + ATA_CYL_LSB, cylinder);
|
|
|
|
|
|
outb(adp->controller->ioaddr + ATA_CYL_MSB, cylinder >> 8);
|
|
|
|
|
|
outb(adp->controller->ioaddr + ATA_SECTOR, sector + 1);
|
|
|
|
|
|
outb(adp->controller->ioaddr + ATA_COUNT, count);
|
|
|
|
|
|
/*
|
|
|
|
|
|
if (ata_wait(adp->controller, ATA_S_DRDY) < 0)
|
|
|
|
|
|
printf("ad_transfer: timeout waiting to send command");
|
|
|
|
|
|
*/
|
|
|
|
|
|
outb(adp->controller->ioaddr + ATA_CMD, command);
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* if this is a read operation, return and wait for interrupt */
|
|
|
|
|
|
if (bp->b_flags & B_READ) {
|
|
|
|
|
|
#ifdef AD_DEBUG
|
|
|
|
|
|
printf("ad_transfer: return waiting to read data\n");
|
|
|
|
|
|
#endif
|
|
|
|
|
|
return;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* ready to write data ? */
|
|
|
|
|
|
if (ata_wait(adp->controller, ATA_S_DRDY | ATA_S_DSC | ATA_S_DRQ) < 0) {
|
|
|
|
|
|
printf("ad_transfer: timeout waiting for DRQ");
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* calculate transfer length */
|
|
|
|
|
|
adp->currentsize = min(adp->bytecount, adp->transfersize);
|
|
|
|
|
|
|
|
|
|
|
|
/* output the data */
|
|
|
|
|
|
#if 0
|
|
|
|
|
|
outsw(adp->controller->ioaddr + ATA_DATA,
|
|
|
|
|
|
(void *)((int32_t)bp->b_data + adp->donecount),
|
|
|
|
|
|
adp->currentsize / sizeof(int16_t));
|
|
|
|
|
|
#else
|
|
|
|
|
|
outsl(adp->controller->ioaddr + ATA_DATA,
|
|
|
|
|
|
(void *)((int32_t)bp->b_data + adp->donecount),
|
|
|
|
|
|
adp->currentsize / sizeof(int32_t));
|
|
|
|
|
|
#endif
|
|
|
|
|
|
adp->bytecount -= adp->currentsize;
|
|
|
|
|
|
#ifdef AD_DEBUG
|
|
|
|
|
|
printf("ad_transfer: return wrote data\n");
|
|
|
|
|
|
#endif
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
|
ad_interrupt(struct buf *bp)
|
|
|
|
|
|
{
|
|
|
|
|
|
struct ad_softc *adp = bp->b_driver1;
|
|
|
|
|
|
|
|
|
|
|
|
/* finish DMA stuff */
|
|
|
|
|
|
|
|
|
|
|
|
/* get drive status */
|
|
|
|
|
|
if (ata_wait(adp->controller, 0) < 0)
|
|
|
|
|
|
printf("ad_interrupt: timeout waiting for status");
|
|
|
|
|
|
|
|
|
|
|
|
if (adp->controller->status & (ATA_S_ERROR | ATA_S_CORR)) {
|
|
|
|
|
|
oops:
|
|
|
|
|
|
printf("ad%d: status=%02x error=%02x\n",
|
1999-03-03 21:10:29 +00:00
|
|
|
|
adp->lun, adp->controller->status, adp->controller->error);
|
Finally!!
The much roumored replacement for our current IDE/ATA/ATAPI is
materialising in the CVS repositories around the globe.
So what does this bring us:
A new reengineered ATA/ATAPI subsystem, that tries to overcome
most of the deficiencies with the current drivers.
It supports PCI as well as ISA devices without all the hackery
in ide_pci.c to make PCI devices look like ISA counterparts.
It doesn't have the excessive wait problem on probe, in fact you
shouldn't notice any delay when your devices are getting probed.
Probing and attaching of devices are postponed until interrupts
are enabled (well almost, not finished yet for disks), making
things alot cleaner.
Improved performance, although DMA support is still WIP and not
in this pre alpha release, worldstone is faster with the new
driver compared to the old even with DMA.
So what does it take away:
There is NO support for old MFM/RLL/ESDI disks.
There is NO support for bad144, if your disk is bad, ditch it, it has
already outgrown its internal spare sectors, and is dying.
For you to try this out, you will have to modify your kernel config
file to use the "ata" controller instead of all wdc? entries.
example:
# for a PCI only system (most modern machines)
controller ata0
device atadisk0 # ATA disks
device atapicd0 # ATAPI CDROM's
device atapist0 # ATAPI tapes
#You should add the following on ISA systems:
controller ata1 at isa? port "IO_WD1" bio irq 14
controller ata2 at isa? port "IO_WD2" bio irq 15
You can leave it all in there, the system knows how to manage.
For now this driver reuses the device entries from the old system
(that will probably change later), but remember that disks are
now numbered in the sequence they are found (like the SCSI system)
not as absolute positions as the old system.
Although I have tested this on all the systems I can get my hands on,
there might very well be gremlins in there, so use AT YOU OWN RISK!!
This is still WIP, so there are lots of rough edges and unfinished
things in there, and what I have in my lab might look very different
from whats in CVS at any given time. So please have all eventual
changes go through me, or chances are they just dissapears...
I would very much like to hear from you, both good and bad news
are very welcome.
Enjoy!!
-Søren
1999-03-01 21:19:19 +00:00
|
|
|
|
if (adp->controller->status & ATA_S_ERROR) {
|
1999-03-03 21:10:29 +00:00
|
|
|
|
printf("ad_interrupt: hard error\n");
|
Finally!!
The much roumored replacement for our current IDE/ATA/ATAPI is
materialising in the CVS repositories around the globe.
So what does this bring us:
A new reengineered ATA/ATAPI subsystem, that tries to overcome
most of the deficiencies with the current drivers.
It supports PCI as well as ISA devices without all the hackery
in ide_pci.c to make PCI devices look like ISA counterparts.
It doesn't have the excessive wait problem on probe, in fact you
shouldn't notice any delay when your devices are getting probed.
Probing and attaching of devices are postponed until interrupts
are enabled (well almost, not finished yet for disks), making
things alot cleaner.
Improved performance, although DMA support is still WIP and not
in this pre alpha release, worldstone is faster with the new
driver compared to the old even with DMA.
So what does it take away:
There is NO support for old MFM/RLL/ESDI disks.
There is NO support for bad144, if your disk is bad, ditch it, it has
already outgrown its internal spare sectors, and is dying.
For you to try this out, you will have to modify your kernel config
file to use the "ata" controller instead of all wdc? entries.
example:
# for a PCI only system (most modern machines)
controller ata0
device atadisk0 # ATA disks
device atapicd0 # ATAPI CDROM's
device atapist0 # ATAPI tapes
#You should add the following on ISA systems:
controller ata1 at isa? port "IO_WD1" bio irq 14
controller ata2 at isa? port "IO_WD2" bio irq 15
You can leave it all in there, the system knows how to manage.
For now this driver reuses the device entries from the old system
(that will probably change later), but remember that disks are
now numbered in the sequence they are found (like the SCSI system)
not as absolute positions as the old system.
Although I have tested this on all the systems I can get my hands on,
there might very well be gremlins in there, so use AT YOU OWN RISK!!
This is still WIP, so there are lots of rough edges and unfinished
things in there, and what I have in my lab might look very different
from whats in CVS at any given time. So please have all eventual
changes go through me, or chances are they just dissapears...
I would very much like to hear from you, both good and bad news
are very welcome.
Enjoy!!
-Søren
1999-03-01 21:19:19 +00:00
|
|
|
|
bp->b_error = EIO;
|
|
|
|
|
|
bp->b_flags |= B_ERROR;
|
|
|
|
|
|
}
|
|
|
|
|
|
if (adp->controller->status & ATA_S_CORR)
|
1999-03-03 21:10:29 +00:00
|
|
|
|
printf("ad_interrupt: soft ECC\n");
|
Finally!!
The much roumored replacement for our current IDE/ATA/ATAPI is
materialising in the CVS repositories around the globe.
So what does this bring us:
A new reengineered ATA/ATAPI subsystem, that tries to overcome
most of the deficiencies with the current drivers.
It supports PCI as well as ISA devices without all the hackery
in ide_pci.c to make PCI devices look like ISA counterparts.
It doesn't have the excessive wait problem on probe, in fact you
shouldn't notice any delay when your devices are getting probed.
Probing and attaching of devices are postponed until interrupts
are enabled (well almost, not finished yet for disks), making
things alot cleaner.
Improved performance, although DMA support is still WIP and not
in this pre alpha release, worldstone is faster with the new
driver compared to the old even with DMA.
So what does it take away:
There is NO support for old MFM/RLL/ESDI disks.
There is NO support for bad144, if your disk is bad, ditch it, it has
already outgrown its internal spare sectors, and is dying.
For you to try this out, you will have to modify your kernel config
file to use the "ata" controller instead of all wdc? entries.
example:
# for a PCI only system (most modern machines)
controller ata0
device atadisk0 # ATA disks
device atapicd0 # ATAPI CDROM's
device atapist0 # ATAPI tapes
#You should add the following on ISA systems:
controller ata1 at isa? port "IO_WD1" bio irq 14
controller ata2 at isa? port "IO_WD2" bio irq 15
You can leave it all in there, the system knows how to manage.
For now this driver reuses the device entries from the old system
(that will probably change later), but remember that disks are
now numbered in the sequence they are found (like the SCSI system)
not as absolute positions as the old system.
Although I have tested this on all the systems I can get my hands on,
there might very well be gremlins in there, so use AT YOU OWN RISK!!
This is still WIP, so there are lots of rough edges and unfinished
things in there, and what I have in my lab might look very different
from whats in CVS at any given time. So please have all eventual
changes go through me, or chances are they just dissapears...
I would very much like to hear from you, both good and bad news
are very welcome.
Enjoy!!
-Søren
1999-03-01 21:19:19 +00:00
|
|
|
|
}
|
|
|
|
|
|
/* if this was a read operation, get the data */
|
|
|
|
|
|
if (((bp->b_flags & (B_READ | B_ERROR)) == B_READ) && adp->active) {
|
|
|
|
|
|
|
|
|
|
|
|
/* ready to receive data? */
|
|
|
|
|
|
if ((adp->controller->status & (ATA_S_DRDY | ATA_S_DSC | ATA_S_DRQ))
|
|
|
|
|
|
!= (ATA_S_DRDY | ATA_S_DSC | ATA_S_DRQ))
|
|
|
|
|
|
printf("ad_interrupt: read interrupt arrived early");
|
|
|
|
|
|
|
|
|
|
|
|
if (ata_wait(adp->controller, ATA_S_DRDY | ATA_S_DSC | ATA_S_DRQ) != 0){
|
|
|
|
|
|
printf("ad_interrupt: read error detected late");
|
|
|
|
|
|
goto oops;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* calculate transfer length */
|
|
|
|
|
|
adp->currentsize = min(adp->bytecount, adp->currentsize);
|
|
|
|
|
|
|
|
|
|
|
|
/* data are ready, get them */
|
|
|
|
|
|
#if 0
|
|
|
|
|
|
insw(adp->controller->ioaddr + ATA_DATA,
|
|
|
|
|
|
(void *)((int32_t)bp->b_data + adp->donecount),
|
|
|
|
|
|
adp->currentsize / sizeof(int16_t));
|
|
|
|
|
|
#else
|
|
|
|
|
|
insl(adp->controller->ioaddr + ATA_DATA,
|
|
|
|
|
|
(void *)((int32_t)bp->b_data + adp->donecount),
|
|
|
|
|
|
adp->currentsize / sizeof(int32_t));
|
|
|
|
|
|
#endif
|
|
|
|
|
|
adp->bytecount -= adp->currentsize;
|
|
|
|
|
|
#ifdef AD_DEBUG
|
|
|
|
|
|
printf("ad_interrupt: read in data\n");
|
|
|
|
|
|
#endif
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* finish up this tranfer, check for more work on this buffer */
|
|
|
|
|
|
if (adp->controller->active) {
|
|
|
|
|
|
if ((bp->b_flags & B_ERROR) == 0) {
|
|
|
|
|
|
adp->donecount += adp->currentsize;
|
|
|
|
|
|
#ifdef AD_DEBUG
|
|
|
|
|
|
printf("ad_interrupt: %s operation OK\n", (bp->b_flags & B_READ)?"R":"W");
|
|
|
|
|
|
#endif
|
|
|
|
|
|
if (adp->bytecount > 0) {
|
|
|
|
|
|
ad_transfer(bp); /* MESSY!! only needed for W */
|
|
|
|
|
|
return;
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
bufq_remove(&adp->controller->ata_queue, bp);
|
|
|
|
|
|
bp->b_resid = bp->b_bcount - adp->donecount;
|
|
|
|
|
|
adp->donecount = 0;
|
|
|
|
|
|
devstat_end_transaction(&adp->stats, bp->b_bcount - bp->b_resid,
|
|
|
|
|
|
DEVSTAT_TAG_NONE,
|
|
|
|
|
|
(bp->b_flags & B_READ) ?
|
|
|
|
|
|
DEVSTAT_READ : DEVSTAT_WRITE);
|
|
|
|
|
|
biodone(bp);
|
|
|
|
|
|
adp->active = 0;
|
|
|
|
|
|
}
|
|
|
|
|
|
adp->controller->active = ATA_IDLE;
|
|
|
|
|
|
ad_start(adp);
|
|
|
|
|
|
#ifdef AD_DEBUG
|
|
|
|
|
|
printf("ad_interrupt: completed\n");
|
|
|
|
|
|
#endif
|
|
|
|
|
|
ata_start(adp->controller);
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
|
ad_sleep(struct ad_softc *adp, int8_t *mesg)
|
|
|
|
|
|
{
|
|
|
|
|
|
int32_t s = splbio();
|
|
|
|
|
|
|
|
|
|
|
|
while (adp->controller->active)
|
|
|
|
|
|
tsleep((caddr_t)&adp->controller->active, PZERO - 1, mesg, 1);
|
|
|
|
|
|
splx(s);
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static int32_t
|
|
|
|
|
|
ad_command(struct ad_softc *adp, u_int32_t command,
|
|
|
|
|
|
u_int32_t cylinder, u_int32_t head, u_int32_t sector,
|
|
|
|
|
|
u_int32_t count)
|
|
|
|
|
|
{
|
|
|
|
|
|
/* ready to issue command ? */
|
|
|
|
|
|
while (ata_wait(adp->controller, 0) < 0) {
|
|
|
|
|
|
printf("ad_transfer: timeout waiting to give command");
|
|
|
|
|
|
return -1;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
outb(adp->controller->ioaddr + ATA_DRIVE, ATA_D_IBM | adp->unit | head);
|
|
|
|
|
|
outb(adp->controller->ioaddr + ATA_PRECOMP, 0); /* no precompensation */
|
|
|
|
|
|
outb(adp->controller->ioaddr + ATA_CYL_LSB, cylinder);
|
|
|
|
|
|
outb(adp->controller->ioaddr + ATA_CYL_MSB, cylinder >> 8);
|
|
|
|
|
|
outb(adp->controller->ioaddr + ATA_SECTOR, sector + 1);
|
|
|
|
|
|
outb(adp->controller->ioaddr + ATA_COUNT, count);
|
|
|
|
|
|
/*
|
|
|
|
|
|
if (ata_wait(adp->controller, ATA_S_DRDY) < 0) {
|
|
|
|
|
|
printf("ad_transfer: timeout waiting to send command");
|
|
|
|
|
|
return -1;
|
|
|
|
|
|
}
|
|
|
|
|
|
*/
|
|
|
|
|
|
adp->controller->active = ATA_IGNORE_INTR;
|
|
|
|
|
|
outb(adp->controller->ioaddr + ATA_CMD, command);
|
|
|
|
|
|
return 0;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static int8_t
|
|
|
|
|
|
ad_version(u_int16_t version)
|
|
|
|
|
|
{
|
|
|
|
|
|
int32_t bit;
|
|
|
|
|
|
|
|
|
|
|
|
if (version == 0xffff)
|
|
|
|
|
|
return '?';
|
|
|
|
|
|
for (bit = 15; bit >= 0; bit--)
|
|
|
|
|
|
if (version & (1<<bit))
|
|
|
|
|
|
return ('0' + bit);
|
|
|
|
|
|
return '?';
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
|
ad_drvinit(void)
|
|
|
|
|
|
{
|
|
|
|
|
|
static ad_devsw_installed = 0;
|
|
|
|
|
|
|
|
|
|
|
|
if (!ad_devsw_installed) {
|
|
|
|
|
|
cdevsw_add_generic(BDEV_MAJOR, CDEV_MAJOR, &ad_cdevsw);
|
|
|
|
|
|
ad_devsw_installed = 1;
|
|
|
|
|
|
}
|
|
|
|
|
|
/* register callback for when interrupts are enabled */
|
|
|
|
|
|
if (!(ad_attach_hook =
|
|
|
|
|
|
(struct intr_config_hook *)malloc(sizeof(struct intr_config_hook),
|
|
|
|
|
|
M_TEMP, M_NOWAIT))) {
|
|
|
|
|
|
printf("ad: malloc attach_hook failed\n");
|
|
|
|
|
|
return;
|
|
|
|
|
|
}
|
|
|
|
|
|
bzero(ad_attach_hook, sizeof(struct intr_config_hook));
|
|
|
|
|
|
|
|
|
|
|
|
ad_attach_hook->ich_func = ad_attach;
|
|
|
|
|
|
if (config_intrhook_establish(ad_attach_hook) != 0) {
|
|
|
|
|
|
printf("ad: config_intrhook_establish failed\n");
|
|
|
|
|
|
free(ad_attach_hook, M_TEMP);
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
SYSINIT(addev, SI_SUB_DRIVERS, SI_ORDER_SECOND, ad_drvinit, NULL)
|
|
|
|
|
|
#endif /* NATA && NATADISK */
|