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freebsd-skq/sys/dev/ata/ata-all.c
Søren Schmidt ccd50c4818 Fix ata-card. 
The altio resource magic no longer worked probably due to other changes
in the kernel. Redo that part so it also fits better into ATAng.
Fix detach so it doesn't panic the system when a pccard device is
yanked.

Approved by: re@
2003-11-30 16:27:59 +00:00

980 lines
26 KiB
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/*-
* Copyright (c) 1998 - 2003 Søren Schmidt <sos@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer,
* without modification, immediately at the beginning of the file.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "opt_ata.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/ata.h>
#include <sys/kernel.h>
#include <sys/endian.h>
#include <sys/ctype.h>
#include <sys/conf.h>
#include <sys/bus.h>
#include <sys/bio.h>
#include <sys/malloc.h>
#include <sys/mutex.h>
#include <sys/sysctl.h>
#include <sys/taskqueue.h>
#include <machine/stdarg.h>
#include <machine/resource.h>
#include <machine/bus.h>
#include <sys/rman.h>
#ifdef __alpha__
#include <machine/md_var.h>
#endif
#include <geom/geom_disk.h>
#include <dev/ata/ata-all.h>
#include <dev/ata/ata-disk.h>
#include <dev/ata/ata-raid.h>
/* device structures */
static d_ioctl_t ata_ioctl;
static struct cdevsw ata_cdevsw = {
.d_ioctl = ata_ioctl,
.d_name = "ata",
.d_maj = 159,
};
/* prototypes */
static void ata_shutdown(void *, int);
static int ata_getparam(struct ata_device *, u_int8_t);
static void ata_identify_devices(struct ata_channel *);
static void ata_boot_attach(void);
static void bswap(int8_t *, int);
static void btrim(int8_t *, int);
static void bpack(int8_t *, int8_t *, int);
static void ata_init(void);
/* global vars */
MALLOC_DEFINE(M_ATA, "ATA generic", "ATA driver generic layer");
struct intr_config_hook *ata_delayed_attach = NULL;
devclass_t ata_devclass;
int ata_wc = 1;
/* local vars */
static int ata_dma = 1;
static int atapi_dma = 0;
/* sysctl vars */
SYSCTL_NODE(_hw, OID_AUTO, ata, CTLFLAG_RD, 0, "ATA driver parameters");
TUNABLE_INT("hw.ata.ata_dma", &ata_dma);
SYSCTL_INT(_hw_ata, OID_AUTO, ata_dma, CTLFLAG_RDTUN, &ata_dma, 0,
"ATA disk DMA mode control");
TUNABLE_INT("hw.ata.wc", &ata_wc);
SYSCTL_INT(_hw_ata, OID_AUTO, wc, CTLFLAG_RDTUN, &ata_wc, 0,
"ATA disk write caching");
TUNABLE_INT("hw.ata.atapi_dma", &atapi_dma);
SYSCTL_INT(_hw_ata, OID_AUTO, atapi_dma, CTLFLAG_RDTUN, &atapi_dma, 0,
"ATAPI device DMA mode control");
/*
* newbus device interface related functions
*/
int
ata_probe(device_t dev)
{
struct ata_channel *ch;
if (!dev || !(ch = device_get_softc(dev)))
return ENXIO;
if (ch->r_irq)
return EEXIST;
/* initialize the softc basics */
ata_generic_hw(ch);
ch->device[MASTER].channel = ch;
ch->device[MASTER].unit = ATA_MASTER;
ch->device[MASTER].mode = ATA_PIO;
ch->device[SLAVE].channel = ch;
ch->device[SLAVE].unit = ATA_SLAVE;
ch->device[SLAVE].mode = ATA_PIO;
ch->dev = dev;
ch->state = ATA_IDLE;
bzero(&ch->queue_mtx, sizeof(struct mtx));
mtx_init(&ch->queue_mtx, "ATA queue lock", MTX_DEF, 0);
TAILQ_INIT(&ch->ata_queue);
/* initialise device(s) on this channel */
ch->locking(ch, ATA_LF_LOCK);
ch->hw.reset(ch);
ch->locking(ch, ATA_LF_UNLOCK);
return 0;
}
int
ata_attach(device_t dev)
{
struct ata_channel *ch;
int error, rid;
if (!dev || !(ch = device_get_softc(dev)))
return ENXIO;
rid = ATA_IRQ_RID;
ch->r_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1,
RF_SHAREABLE | RF_ACTIVE);
if (!ch->r_irq) {
ata_printf(ch, -1, "unable to allocate interrupt\n");
return ENXIO;
}
if ((error = bus_setup_intr(dev, ch->r_irq, ATA_INTR_FLAGS,
ch->hw.interrupt, ch, &ch->ih))) {
ata_printf(ch, -1, "unable to setup interrupt\n");
return error;
}
if (ch->dma)
ch->dma->alloc(ch);
/* do not attach devices if we are in early boot */
if (ata_delayed_attach)
return 0;
ata_identify_devices(ch);
if (ch->device[MASTER].attach)
ch->device[MASTER].attach(&ch->device[MASTER]);
if (ch->device[SLAVE].attach)
ch->device[SLAVE].attach(&ch->device[SLAVE]);
#ifdef DEV_ATAPICAM
atapi_cam_attach_bus(ch);
#endif
return 0;
}
int
ata_detach(device_t dev)
{
struct ata_channel *ch;
struct ata_request *request;
if (!dev || !(ch = device_get_softc(dev)) || !ch->r_irq)
return ENXIO;
/* detach devices on this channel */
if (ch->device[MASTER].detach)
ch->device[MASTER].detach(&ch->device[MASTER]);
if (ch->device[SLAVE].detach)
ch->device[SLAVE].detach(&ch->device[SLAVE]);
#ifdef DEV_ATAPICAM
atapi_cam_detach_bus(ch);
#endif
/* fail outstanding requests on this channel */
mtx_lock(&ch->queue_mtx);
while ((request = TAILQ_FIRST(&ch->ata_queue))) {
TAILQ_REMOVE(&ch->ata_queue, request, chain);
request->status = ATA_S_ERROR;
mtx_unlock(&ch->queue_mtx);
ata_finish(request);
mtx_lock(&ch->queue_mtx);
}
mtx_unlock(&ch->queue_mtx);
if (ch->device[MASTER].param) {
if (ch->device[MASTER].param->support.command2 & ATA_SUPPORT_FLUSHCACHE)
ata_controlcmd(&ch->device[MASTER], ATA_FLUSHCACHE, 0, 0, 0);
ata_controlcmd(&ch->device[MASTER], ATA_SLEEP, 0, 0, 0);
free(ch->device[MASTER].param, M_ATA);
ch->device[MASTER].param = NULL;
}
if (ch->device[SLAVE].param) {
if (ch->device[SLAVE].param->support.command2 & ATA_SUPPORT_FLUSHCACHE)
ata_controlcmd(&ch->device[SLAVE], ATA_FLUSHCACHE, 0, 0, 0);
ata_controlcmd(&ch->device[SLAVE], ATA_SLEEP, 0, 0, 0);
free(ch->device[SLAVE].param, M_ATA);
ch->device[SLAVE].param = NULL;
}
ch->device[MASTER].mode = ATA_PIO;
ch->device[SLAVE].mode = ATA_PIO;
ch->devices = 0;
if (ch->dma)
ch->dma->free(ch);
bus_teardown_intr(dev, ch->r_irq, ch->ih);
bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq);
ch->r_irq = NULL;
return 0;
}
int
ata_reinit(struct ata_channel *ch)
{
struct ata_request *request = ch->running;
int devices, misdev, newdev;
if (!ch->r_irq)
return ENXIO;
/* reset the HW */
ata_printf(ch, -1, "resetting devices ..\n");
ATA_FORCELOCK_CH(ch, ATA_CONTROL);
ch->running = NULL;
devices = ch->devices;
ch->hw.reset(ch);
ATA_UNLOCK_CH(ch);
/* detach what left the channel during reset */
if ((misdev = devices & ~ch->devices)) {
if ((misdev & (ATA_ATA_MASTER | ATA_ATAPI_MASTER)) &&
ch->device[MASTER].detach) {
if (request && (request->device == &ch->device[MASTER])) {
request->result = ENXIO;
request->flags |= ATA_R_DONE;
if (request->callback)
(request->callback)(request);
else
wakeup(request);
}
ch->device[MASTER].detach(&ch->device[MASTER]);
}
if ((misdev & (ATA_ATA_SLAVE | ATA_ATAPI_SLAVE)) &&
ch->device[SLAVE].detach) {
if (request && (request->device == &ch->device[SLAVE])) {
request->result = ENXIO;
request->flags |= ATA_R_DONE;
if (request->callback)
(request->callback)(request);
else
wakeup(request);
}
ch->device[SLAVE].detach(&ch->device[SLAVE]);
}
}
/* identify whats present on this channel now */
ata_identify_devices(ch);
/* attach new devices that appeared during reset */
if ((newdev = ~devices & ch->devices)) {
if ((newdev & (ATA_ATA_MASTER | ATA_ATAPI_MASTER)) &&
ch->device[MASTER].attach)
ch->device[MASTER].attach(&ch->device[MASTER]);
if ((newdev & (ATA_ATA_SLAVE | ATA_ATAPI_SLAVE)) &&
ch->device[SLAVE].attach)
ch->device[SLAVE].attach(&ch->device[SLAVE]);
}
/* restore transfermode on devices */
if (ch->devices & (ATA_ATA_MASTER | ATA_ATAPI_MASTER))
ch->device[MASTER].setmode(&ch->device[MASTER],ch->device[MASTER].mode);
if (ch->devices & (ATA_ATA_SLAVE | ATA_ATAPI_SLAVE))
ch->device[SLAVE].setmode(&ch->device[SLAVE], ch->device[SLAVE].mode);
#ifdef DEV_ATAPICAM
atapi_cam_reinit_bus(ch);
#endif
printf("done\n");
return 0;
}
int
ata_suspend(device_t dev)
{
struct ata_channel *ch;
if (!dev || !(ch = device_get_softc(dev)))
return ENXIO;
ch->locking(ch, ATA_LF_LOCK);
ATA_SLEEPLOCK_CH(ch, ATA_CONTROL);
return 0;
}
int
ata_resume(device_t dev)
{
struct ata_channel *ch;
int error;
if (!dev || !(ch = device_get_softc(dev)))
return ENXIO;
ch->locking(ch, ATA_LF_LOCK);
error = ata_reinit(ch);
ch->locking(ch, ATA_LF_UNLOCK);
ata_start(ch);
return error;
}
static void
ata_shutdown(void *arg, int howto)
{
struct ata_channel *ch;
int ctlr;
/* flush cache on all devices */
for (ctlr = 0; ctlr < devclass_get_maxunit(ata_devclass); ctlr++) {
if (!(ch = devclass_get_softc(ata_devclass, ctlr)))
continue;
if (ch->device[MASTER].param &&
ch->device[MASTER].param->support.command2 & ATA_SUPPORT_FLUSHCACHE)
ata_controlcmd(&ch->device[MASTER], ATA_FLUSHCACHE, 0, 0, 0);
if (ch->device[SLAVE].param &&
ch->device[SLAVE].param->support.command2 & ATA_SUPPORT_FLUSHCACHE)
ata_controlcmd(&ch->device[SLAVE], ATA_FLUSHCACHE, 0, 0, 0);
}
}
/*
* device related interfaces
*/
static int
ata_ioctl(dev_t dev, u_long cmd, caddr_t addr, int32_t flag, struct thread *td)
{
struct ata_cmd *iocmd = (struct ata_cmd *)addr;
device_t device = devclass_get_device(ata_devclass, iocmd->channel);
struct ata_channel *ch;
struct ata_device *atadev;
struct ata_request *request;
caddr_t buf;
int error = ENOTTY;
DROP_GIANT();
switch (iocmd->cmd) {
case ATAGMAXCHANNEL:
iocmd->u.maxchan = devclass_get_maxunit(ata_devclass);
error = 0;
break;
case ATAGPARM:
if (!device || !(ch = device_get_softc(device))) {
error = ENXIO;
break;
}
iocmd->u.param.type[MASTER] =
ch->devices & (ATA_ATA_MASTER | ATA_ATAPI_MASTER);
iocmd->u.param.type[SLAVE] =
ch->devices & (ATA_ATA_SLAVE | ATA_ATAPI_SLAVE);
if (ch->device[MASTER].name)
strcpy(iocmd->u.param.name[MASTER], ch->device[MASTER].name);
if (ch->device[SLAVE].name)
strcpy(iocmd->u.param.name[SLAVE], ch->device[SLAVE].name);
if (ch->device[MASTER].param)
bcopy(ch->device[MASTER].param, &iocmd->u.param.params[MASTER],
sizeof(struct ata_params));
if (ch->device[SLAVE].param)
bcopy(ch->device[SLAVE].param, &iocmd->u.param.params[SLAVE],
sizeof(struct ata_params));
error = 0;
break;
case ATAGMODE:
if (!device || !(ch = device_get_softc(device))) {
error = ENXIO;
break;
}
iocmd->u.mode.mode[MASTER] = ch->device[MASTER].mode;
iocmd->u.mode.mode[SLAVE] = ch->device[SLAVE].mode;
error = 0;
break;
case ATASMODE:
if (!device || !(ch = device_get_softc(device))) {
error = ENXIO;
break;
}
if (iocmd->u.mode.mode[MASTER] >= 0 && ch->device[MASTER].param)
ch->device[MASTER].setmode(&ch->device[MASTER],
iocmd->u.mode.mode[MASTER]);
iocmd->u.mode.mode[MASTER] = ch->device[MASTER].mode;
if (iocmd->u.mode.mode[SLAVE] >= 0 && ch->device[SLAVE].param)
ch->device[SLAVE].setmode(&ch->device[SLAVE],
iocmd->u.mode.mode[SLAVE]);
iocmd->u.mode.mode[SLAVE] = ch->device[SLAVE].mode;
error = 0;
break;
case ATAREQUEST:
if (!device || !(ch = device_get_softc(device))) {
error = ENXIO;
break;
}
if (!(atadev = &ch->device[iocmd->device])) {
error = ENODEV;
break;
}
if (!(buf = malloc(iocmd->u.request.count, M_ATA, M_NOWAIT))) {
error = ENOMEM;
break;
}
if (!(request = ata_alloc_request())) {
error = ENOMEM;
free(buf, M_ATA);
break;
}
if (iocmd->u.request.flags & ATA_CMD_WRITE) {
error = copyin(iocmd->u.request.data, buf, iocmd->u.request.count);
if (error) {
free(buf, M_ATA);
ata_free_request(request);
break;
}
}
request->device = atadev;
if (iocmd->u.request.flags & ATA_CMD_ATAPI) {
request->flags = ATA_R_ATAPI;
bcopy(iocmd->u.request.u.atapi.ccb, request->u.atapi.ccb, 16);
}
else {
request->u.ata.command = iocmd->u.request.u.ata.command;
request->u.ata.feature = iocmd->u.request.u.ata.feature;
request->u.ata.lba = iocmd->u.request.u.ata.lba;
request->u.ata.count = iocmd->u.request.u.ata.count;
}
request->timeout = iocmd->u.request.timeout;
request->data = buf;
request->bytecount = iocmd->u.request.count;
request->transfersize = request->bytecount;
if (iocmd->u.request.flags & ATA_CMD_CONTROL)
request->flags |= ATA_R_CONTROL;
if (iocmd->u.request.flags & ATA_CMD_READ)
request->flags |= ATA_R_READ;
if (iocmd->u.request.flags & ATA_CMD_WRITE)
request->flags |= ATA_R_WRITE;
ata_queue_request(request);
if (request->result)
iocmd->u.request.error = request->result;
else {
if (iocmd->u.request.flags & ATA_CMD_READ)
error = copyout(buf,
iocmd->u.request.data, iocmd->u.request.count);
else
error = 0;
}
free(buf, M_ATA);
ata_free_request(request);
break;
case ATAREINIT:
if (!device || !(ch = device_get_softc(device)))
return ENXIO;
error = ata_reinit(ch);
ata_start(ch);
break;
case ATAATTACH:
if (!device) {
error = ENXIO;
break;
}
/* SOS should enable channel HW on controller XXX */
error = ata_probe(device);
if (!error)
error = ata_attach(device);
break;
case ATADETACH:
if (!device) {
error = ENXIO;
break;
}
error = ata_detach(device);
/* SOS should disable channel HW on controller XXX */
break;
#ifdef DEV_ATARAID
case ATARAIDCREATE:
error = ata_raid_create(&iocmd->u.raid_setup);
break;
case ATARAIDDELETE:
error = ata_raid_delete(iocmd->channel);
break;
case ATARAIDSTATUS:
error = ata_raid_status(iocmd->channel, &iocmd->u.raid_status);
break;
case ATARAIDADDSPARE:
error = ata_raid_addspare(iocmd->channel, iocmd->u.raid_spare.disk);
break;
case ATARAIDREBUILD:
error = ata_raid_rebuild(iocmd->channel);
break;
#endif
}
PICKUP_GIANT();
return error;
}
/*
* device probe functions
*/
static int
ata_getparam(struct ata_device *atadev, u_int8_t command)
{
struct ata_params *atacap;
struct ata_request *request;
int error = ENOMEM;
if (atadev->param)
atacap = atadev->param;
else
atacap = malloc(sizeof(struct ata_params), M_ATA, M_NOWAIT);
if (atacap) {
request = ata_alloc_request();
if (request) {
request->device = atadev;
request->u.ata.command = command;
request->flags = (ATA_R_READ | ATA_R_QUIET);
request->data = (caddr_t)atacap;
request->timeout = 2;
request->retries = 3;
request->bytecount = sizeof(struct ata_params);
request->transfersize = DEV_BSIZE;
while (request->retries) {
ata_queue_request(request);
if (!(error = request->result))
break;
request->flags &= ~ATA_R_QUIET;
request->retries--;
}
ata_free_request(request);
}
if (!isprint(atacap->model[0]) || !isprint(atacap->model[1]))
error = ENXIO;
if (error) {
atadev->param = NULL;
free(atacap, M_ATA);
}
else {
#if BYTE_ORDER == BIG_ENDIAN
int16_t *ptr;
for (ptr = (int16_t *)atacap;
ptr < (int16_t *)atacap + sizeof(struct ata_params)/2; ptr++) {
*ptr = bswap16(*ptr);
}
#endif
if (!((atacap->model[0] == 'N' && atacap->model[1] == 'E') ||
(atacap->model[0] == 'F' && atacap->model[1] == 'X') ||
(atacap->model[0] == 'P' && atacap->model[1] == 'i')))
bswap(atacap->model, sizeof(atacap->model));
btrim(atacap->model, sizeof(atacap->model));
bpack(atacap->model, atacap->model, sizeof(atacap->model));
bswap(atacap->revision, sizeof(atacap->revision));
btrim(atacap->revision, sizeof(atacap->revision));
bpack(atacap->revision, atacap->revision, sizeof(atacap->revision));
bswap(atacap->serial, sizeof(atacap->serial));
btrim(atacap->serial, sizeof(atacap->serial));
bpack(atacap->serial, atacap->serial, sizeof(atacap->serial));
atadev->param = atacap;
if (bootverbose)
ata_prtdev(atadev,
"pio=0x%02x wdma=0x%02x udma=0x%02x cable=%spin\n",
ata_pmode(atacap), ata_wmode(atacap),
ata_umode(atacap),
(atacap->hwres & ATA_CABLE_ID) ? "80":"40");
}
}
return error;
}
static void
ata_identify_devices(struct ata_channel *ch)
{
if (ch->devices & ATA_ATA_SLAVE) {
if (ata_getparam(&ch->device[SLAVE], ATA_ATA_IDENTIFY))
ch->devices &= ~ATA_ATA_SLAVE;
#ifdef DEV_ATADISK
else
ch->device[SLAVE].attach = ad_attach;
#endif
}
if (ch->devices & ATA_ATAPI_SLAVE) {
if (ata_getparam(&ch->device[SLAVE], ATA_ATAPI_IDENTIFY))
ch->devices &= ~ATA_ATAPI_SLAVE;
else {
switch (ch->device[SLAVE].param->config & ATA_ATAPI_TYPE_MASK) {
#ifdef DEV_ATAPICD
case ATA_ATAPI_TYPE_CDROM:
ch->device[SLAVE].attach = acd_attach;
break;
#endif
#ifdef DEV_ATAPIFD
case ATA_ATAPI_TYPE_DIRECT:
ch->device[SLAVE].attach = afd_attach;
break;
#endif
#ifdef DEV_ATAPIST
case ATA_ATAPI_TYPE_TAPE:
ch->device[SLAVE].attach = ast_attach;
break;
#endif
}
}
}
if (ch->devices & ATA_ATA_MASTER) {
if (ata_getparam(&ch->device[MASTER], ATA_ATA_IDENTIFY))
ch->devices &= ~ATA_ATA_MASTER;
#ifdef DEV_ATADISK
else
ch->device[MASTER].attach = ad_attach;
#endif
}
if (ch->devices & ATA_ATAPI_MASTER) {
if (ata_getparam(&ch->device[MASTER], ATA_ATAPI_IDENTIFY))
ch->devices &= ~ATA_ATAPI_MASTER;
else {
switch (ch->device[MASTER].param->config & ATA_ATAPI_TYPE_MASK) {
#ifdef DEV_ATAPICD
case ATA_ATAPI_TYPE_CDROM:
ch->device[MASTER].attach = acd_attach;
break;
#endif
#ifdef DEV_ATAPIFD
case ATA_ATAPI_TYPE_DIRECT:
ch->device[MASTER].attach = afd_attach;
break;
#endif
#ifdef DEV_ATAPIST
case ATA_ATAPI_TYPE_TAPE:
ch->device[MASTER].attach = ast_attach;
break;
#endif
}
}
}
/* setup basic transfer mode by setting PIO mode and DMA if supported */
if (ch->device[MASTER].attach) {
ch->device[MASTER].setmode(&ch->device[MASTER], ATA_PIO_MAX);
if ((((ch->devices & ATA_ATAPI_MASTER) && atapi_dma &&
(ch->device[MASTER].param->config&ATA_DRQ_MASK) != ATA_DRQ_INTR)||
((ch->devices & ATA_ATA_MASTER) && ata_dma)) && ch->dma)
ch->device[MASTER].setmode(&ch->device[MASTER], ATA_DMA_MAX);
}
if (ch->device[SLAVE].attach) {
ch->device[SLAVE].setmode(&ch->device[SLAVE], ATA_PIO_MAX);
if ((((ch->devices & ATA_ATAPI_SLAVE) && atapi_dma &&
(ch->device[SLAVE].param->config&ATA_DRQ_MASK) != ATA_DRQ_INTR) ||
((ch->devices & ATA_ATA_SLAVE) && ata_dma)) && ch->dma)
ch->device[SLAVE].setmode(&ch->device[SLAVE], ATA_DMA_MAX);
}
}
static void
ata_boot_attach(void)
{
struct ata_channel *ch;
int ctlr;
/*
* run through all ata devices and look for real ATA & ATAPI devices
* using the hints we found in the early probe, this avoids some of
* the delays probing of non-exsistent devices can cause.
*/
for (ctlr=0; ctlr<devclass_get_maxunit(ata_devclass); ctlr++) {
if (!(ch = devclass_get_softc(ata_devclass, ctlr)))
continue;
ata_identify_devices(ch);
if (ch->device[MASTER].attach)
ch->device[MASTER].attach(&ch->device[MASTER]);
if (ch->device[SLAVE].attach)
ch->device[SLAVE].attach(&ch->device[SLAVE]);
#ifdef DEV_ATAPICAM
atapi_cam_attach_bus(ch);
#endif
}
#ifdef DEV_ATARAID
ata_raid_attach();
#endif
if (ata_delayed_attach) {
config_intrhook_disestablish(ata_delayed_attach);
free(ata_delayed_attach, M_TEMP);
ata_delayed_attach = NULL;
}
}
/*
* misc support functions
*/
static void
bswap(int8_t *buf, int len)
{
u_int16_t *ptr = (u_int16_t*)(buf + len);
while (--ptr >= (u_int16_t*)buf)
*ptr = ntohs(*ptr);
}
static void
btrim(int8_t *buf, int len)
{
int8_t *ptr;
for (ptr = buf; ptr < buf+len; ++ptr)
if (!*ptr)
*ptr = ' ';
for (ptr = buf + len - 1; ptr >= buf && *ptr == ' '; --ptr)
*ptr = 0;
}
static void
bpack(int8_t *src, int8_t *dst, int len)
{
int i, j, blank;
for (i = j = blank = 0 ; i < len; i++) {
if (blank && src[i] == ' ') continue;
if (blank && src[i] != ' ') {
dst[j++] = src[i];
blank = 0;
continue;
}
if (src[i] == ' ') {
blank = 1;
if (i == 0)
continue;
}
dst[j++] = src[i];
}
if (j < len)
dst[j] = 0x00;
}
int
ata_printf(struct ata_channel *ch, int device, const char * fmt, ...)
{
va_list ap;
int ret;
if (device == -1)
ret = printf("ata%d: ", device_get_unit(ch->dev));
else {
if (ch->device[ATA_DEV(device)].name)
ret = printf("%s: ", ch->device[ATA_DEV(device)].name);
else
ret = printf("ata%d-%s: ", device_get_unit(ch->dev),
(device == ATA_MASTER) ? "master" : "slave");
}
va_start(ap, fmt);
ret += vprintf(fmt, ap);
va_end(ap);
return ret;
}
int
ata_prtdev(struct ata_device *atadev, const char * fmt, ...)
{
va_list ap;
int ret;
if (atadev->name)
ret = printf("%s: ", atadev->name);
else
ret = printf("ata%d-%s: ", device_get_unit(atadev->channel->dev),
(atadev->unit == ATA_MASTER) ? "master" : "slave");
va_start(ap, fmt);
ret += vprintf(fmt, ap);
va_end(ap);
return ret;
}
void
ata_set_name(struct ata_device *atadev, char *name, int lun)
{
atadev->name = malloc(strlen(name) + 4, M_ATA, M_NOWAIT);
if (atadev->name)
sprintf(atadev->name, "%s%d", name, lun);
}
void
ata_free_name(struct ata_device *atadev)
{
if (atadev->name)
free(atadev->name, M_ATA);
atadev->name = NULL;
}
int
ata_get_lun(u_int32_t *map)
{
int lun = ffs(~*map) - 1;
*map |= (1 << lun);
return lun;
}
int
ata_test_lun(u_int32_t *map, int lun)
{
return (*map & (1 << lun));
}
void
ata_free_lun(u_int32_t *map, int lun)
{
*map &= ~(1 << lun);
}
char *
ata_mode2str(int mode)
{
switch (mode) {
case ATA_PIO: return "BIOSPIO";
case ATA_PIO0: return "PIO0";
case ATA_PIO1: return "PIO1";
case ATA_PIO2: return "PIO2";
case ATA_PIO3: return "PIO3";
case ATA_PIO4: return "PIO4";
case ATA_DMA: return "BIOSDMA";
case ATA_WDMA0: return "WDMA0";
case ATA_WDMA1: return "WDMA1";
case ATA_WDMA2: return "WDMA2";
case ATA_UDMA0: return "UDMA16";
case ATA_UDMA1: return "UDMA25";
case ATA_UDMA2: return "UDMA33";
case ATA_UDMA3: return "UDMA40";
case ATA_UDMA4: return "UDMA66";
case ATA_UDMA5: return "UDMA100";
case ATA_UDMA6: return "UDMA133";
case ATA_SA150: return "SATA150";
default: return "???";
}
}
int
ata_pmode(struct ata_params *ap)
{
if (ap->atavalid & ATA_FLAG_64_70) {
if (ap->apiomodes & 0x02)
return ATA_PIO4;
if (ap->apiomodes & 0x01)
return ATA_PIO3;
}
if (ap->mwdmamodes & 0x04)
return ATA_PIO4;
if (ap->mwdmamodes & 0x02)
return ATA_PIO3;
if (ap->mwdmamodes & 0x01)
return ATA_PIO2;
if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x200)
return ATA_PIO2;
if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x100)
return ATA_PIO1;
if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x000)
return ATA_PIO0;
return ATA_PIO0;
}
int
ata_wmode(struct ata_params *ap)
{
if (ap->mwdmamodes & 0x04)
return ATA_WDMA2;
if (ap->mwdmamodes & 0x02)
return ATA_WDMA1;
if (ap->mwdmamodes & 0x01)
return ATA_WDMA0;
return -1;
}
int
ata_umode(struct ata_params *ap)
{
if (ap->atavalid & ATA_FLAG_88) {
if (ap->udmamodes & 0x40)
return ATA_UDMA6;
if (ap->udmamodes & 0x20)
return ATA_UDMA5;
if (ap->udmamodes & 0x10)
return ATA_UDMA4;
if (ap->udmamodes & 0x08)
return ATA_UDMA3;
if (ap->udmamodes & 0x04)
return ATA_UDMA2;
if (ap->udmamodes & 0x02)
return ATA_UDMA1;
if (ap->udmamodes & 0x01)
return ATA_UDMA0;
}
return -1;
}
int
ata_limit_mode(struct ata_device *atadev, int mode, int maxmode)
{
if (maxmode && mode > maxmode)
mode = maxmode;
if (mode >= ATA_UDMA0 && ata_umode(atadev->param) > 0)
return min(mode, ata_umode(atadev->param));
if (mode >= ATA_WDMA0 && ata_wmode(atadev->param) > 0)
return min(mode, ata_wmode(atadev->param));
if (mode > ata_pmode(atadev->param))
return min(mode, ata_pmode(atadev->param));
return mode;
}
static void
ata_init(void)
{
/* register controlling device */
make_dev(&ata_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, "ata");
/* register boot attach to be run when interrupts are enabled */
if (!(ata_delayed_attach = (struct intr_config_hook *)
malloc(sizeof(struct intr_config_hook),
M_TEMP, M_NOWAIT | M_ZERO))) {
printf("ata: malloc of delayed attach hook failed\n");
return;
}
ata_delayed_attach->ich_func = (void*)ata_boot_attach;
if (config_intrhook_establish(ata_delayed_attach) != 0) {
printf("ata: config_intrhook_establish failed\n");
free(ata_delayed_attach, M_TEMP);
}
/* Register a handler to flush write caches on shutdown */
if ((EVENTHANDLER_REGISTER(shutdown_post_sync, ata_shutdown,
NULL, SHUTDOWN_PRI_DEFAULT)) == NULL)
printf("ata: shutdown event registration failed!\n");
}
SYSINIT(atadev, SI_SUB_DRIVERS, SI_ORDER_SECOND, ata_init, NULL)
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