965 lines
26 KiB
C
965 lines
26 KiB
C
/*-
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* Copyright (c) 1998 - 2005 Søren Schmidt <sos@FreeBSD.org>
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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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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "opt_ata.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/ata.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/endian.h>
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#include <sys/ctype.h>
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#include <sys/conf.h>
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#include <sys/bus.h>
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#include <sys/bio.h>
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#include <sys/malloc.h>
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#include <sys/sysctl.h>
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#include <sys/sema.h>
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#include <sys/taskqueue.h>
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#include <vm/uma.h>
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#include <machine/stdarg.h>
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#include <machine/resource.h>
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#include <machine/bus.h>
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#include <sys/rman.h>
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#ifdef __alpha__
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#include <machine/md_var.h>
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#endif
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#include <dev/ata/ata-all.h>
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#include <ata_if.h>
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/* device structure */
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static d_ioctl_t ata_ioctl;
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static struct cdevsw ata_cdevsw = {
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.d_version = D_VERSION,
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.d_flags = D_NEEDGIANT, /* we need this as newbus isn't mpsafe */
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.d_ioctl = ata_ioctl,
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.d_name = "ata",
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};
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/* prototypes */
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static void ata_interrupt(void *);
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static void ata_boot_attach(void);
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static device_t ata_add_child(device_t, struct ata_device *, int);
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static void bswap(int8_t *, int);
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static void btrim(int8_t *, int);
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static void bpack(int8_t *, int8_t *, int);
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/* global vars */
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MALLOC_DEFINE(M_ATA, "ATA generic", "ATA driver generic layer");
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int (*ata_raid_ioctl_func)(u_long cmd, caddr_t data) = NULL;
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devclass_t ata_devclass;
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uma_zone_t ata_request_zone;
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uma_zone_t ata_composite_zone;
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int ata_wc = 1;
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/* local vars */
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static struct intr_config_hook *ata_delayed_attach = NULL;
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static int ata_dma = 1;
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static int atapi_dma = 1;
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/* sysctl vars */
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SYSCTL_NODE(_hw, OID_AUTO, ata, CTLFLAG_RD, 0, "ATA driver parameters");
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TUNABLE_INT("hw.ata.ata_dma", &ata_dma);
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SYSCTL_INT(_hw_ata, OID_AUTO, ata_dma, CTLFLAG_RDTUN, &ata_dma, 0,
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"ATA disk DMA mode control");
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TUNABLE_INT("hw.ata.atapi_dma", &atapi_dma);
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SYSCTL_INT(_hw_ata, OID_AUTO, atapi_dma, CTLFLAG_RDTUN, &atapi_dma, 0,
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"ATAPI device DMA mode control");
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TUNABLE_INT("hw.ata.wc", &ata_wc);
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SYSCTL_INT(_hw_ata, OID_AUTO, wc, CTLFLAG_RDTUN, &ata_wc, 0,
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"ATA disk write caching");
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/*
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* newbus device interface related functions
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*/
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int
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ata_probe(device_t dev)
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{
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return 0;
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}
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int
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ata_attach(device_t dev)
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{
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struct ata_channel *ch = device_get_softc(dev);
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int error, rid;
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/* check that we have a virgin channel to attach */
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if (ch->r_irq)
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return EEXIST;
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/* initialize the softc basics */
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ch->dev = dev;
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ch->state = ATA_IDLE;
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bzero(&ch->state_mtx, sizeof(struct mtx));
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mtx_init(&ch->state_mtx, "ATA state lock", NULL, MTX_DEF);
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bzero(&ch->queue_mtx, sizeof(struct mtx));
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mtx_init(&ch->queue_mtx, "ATA queue lock", NULL, MTX_DEF);
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TAILQ_INIT(&ch->ata_queue);
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/* reset the controller HW, the channel and device(s) */
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while (ATA_LOCKING(dev, ATA_LF_LOCK) != ch->unit)
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tsleep(&error, PRIBIO, "ataatch", 1);
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ATA_RESET(dev);
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ATA_LOCKING(dev, ATA_LF_UNLOCK);
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/* setup interrupt delivery */
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rid = ATA_IRQ_RID;
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ch->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
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RF_SHAREABLE | RF_ACTIVE);
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if (!ch->r_irq) {
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device_printf(dev, "unable to allocate interrupt\n");
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return ENXIO;
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}
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if ((error = bus_setup_intr(dev, ch->r_irq, ATA_INTR_FLAGS,
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ata_interrupt, ch, &ch->ih))) {
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device_printf(dev, "unable to setup interrupt\n");
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return error;
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}
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/* probe and attach devices on this channel unless we are in early boot */
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if (!ata_delayed_attach)
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ata_identify(dev);
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return 0;
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}
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int
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ata_detach(device_t dev)
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{
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struct ata_channel *ch = device_get_softc(dev);
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device_t *children;
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int nchildren, i;
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/* check that we have a vaild channel to detach */
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if (!ch->r_irq)
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return ENXIO;
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/* detach & delete all children */
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if (!device_get_children(dev, &children, &nchildren)) {
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for (i = 0; i < nchildren; i++)
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if (children[i])
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device_delete_child(dev, children[i]);
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free(children, M_TEMP);
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}
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/* release resources */
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bus_teardown_intr(dev, ch->r_irq, ch->ih);
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bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq);
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ch->r_irq = NULL;
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mtx_destroy(&ch->state_mtx);
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mtx_destroy(&ch->queue_mtx);
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return 0;
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}
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int
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ata_reinit(device_t dev)
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{
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struct ata_channel *ch = device_get_softc(dev);
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device_t *children;
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int nchildren, i;
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/* check that we have a vaild channel to reinit */
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if (!ch || !ch->r_irq)
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return ENXIO;
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if (bootverbose)
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device_printf(dev, "reiniting channel ..\n");
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/* poll for locking the channel */
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while (ATA_LOCKING(dev, ATA_LF_LOCK) != ch->unit)
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tsleep(&dev, PRIBIO, "atarini", 1);
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/* unconditionally grap the channel lock */
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mtx_lock(&ch->state_mtx);
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ch->state = ATA_STALL_QUEUE;
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mtx_unlock(&ch->state_mtx);
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/* reset the controller HW, the channel and device(s) */
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ATA_RESET(dev);
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/* reinit the children and delete any that fails */
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if (!device_get_children(dev, &children, &nchildren)) {
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mtx_lock(&Giant); /* newbus suckage it needs Giant */
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for (i = 0; i < nchildren; i++) {
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if (children[i] && device_is_attached(children[i]))
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if (ATA_REINIT(children[i])) {
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/*
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* if we have a running request and its device matches
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* this child we need to inform the request that the
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* device is gone and remove it from ch->running
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*/
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if (ch->running && ch->running->dev == children[i]) {
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device_printf(ch->running->dev,
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"FAILURE - device detached\n");
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ch->running->dev = NULL;
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ch->running = NULL;
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}
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device_delete_child(dev, children[i]);
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}
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}
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free(children, M_TEMP);
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mtx_unlock(&Giant); /* newbus suckage dealt with, release Giant */
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}
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/* catch request in ch->running if we havn't already */
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ata_catch_inflight(dev);
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/* we're done release the channel for new work */
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mtx_lock(&ch->state_mtx);
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ch->state = ATA_IDLE;
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mtx_unlock(&ch->state_mtx);
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ATA_LOCKING(dev, ATA_LF_UNLOCK);
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if (bootverbose)
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device_printf(dev, "reinit done ..\n");
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/* kick off requests on the queue */
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ata_start(dev);
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return 0;
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}
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int
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ata_suspend(device_t dev)
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{
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struct ata_channel *ch;
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/* check for valid device */
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if (!dev || !(ch = device_get_softc(dev)))
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return ENXIO;
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/* wait for the channel to be IDLE before entering suspend mode */
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while (1) {
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mtx_lock(&ch->state_mtx);
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if (ch->state == ATA_IDLE) {
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ch->state = ATA_ACTIVE;
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mtx_unlock(&ch->state_mtx);
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break;
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}
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mtx_unlock(&ch->state_mtx);
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tsleep(ch, PRIBIO, "atasusp", hz/10);
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}
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ATA_LOCKING(dev, ATA_LF_UNLOCK);
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return 0;
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}
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int
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ata_resume(device_t dev)
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{
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struct ata_channel *ch;
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int error;
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/* check for valid device */
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if (!dev || !(ch = device_get_softc(dev)))
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return ENXIO;
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/* reinit the devices, we dont know what mode/state they are in */
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error = ata_reinit(dev);
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/* kick off requests on the queue */
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ata_start(dev);
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return error;
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}
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static void
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ata_interrupt(void *data)
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{
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struct ata_channel *ch = (struct ata_channel *)data;
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struct ata_request *request;
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mtx_lock(&ch->state_mtx);
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do {
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/* do we have a running request */
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if (!(request = ch->running) || (request->flags & ATA_R_TIMEOUT))
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break;
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ATA_DEBUG_RQ(request, "interrupt");
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/* ignore interrupt if device is busy */
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if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) {
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DELAY(100);
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if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY)
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break;
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}
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/* check for the right state */
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if (ch->state != ATA_ACTIVE && ch->state != ATA_STALL_QUEUE) {
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device_printf(request->dev,
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"interrupt state=%d unexpected\n", ch->state);
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break;
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}
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/*
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* we have the HW locks, so end the tranaction for this request
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* if it finishes immediately otherwise wait for next interrupt
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*/
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if (ch->hw.end_transaction(request) == ATA_OP_FINISHED) {
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ch->running = NULL;
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if (ch->state == ATA_ACTIVE)
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ch->state = ATA_IDLE;
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mtx_unlock(&ch->state_mtx);
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ATA_LOCKING(ch->dev, ATA_LF_UNLOCK);
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ata_finish(request);
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return;
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}
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} while (0);
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mtx_unlock(&ch->state_mtx);
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}
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/*
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* device related interfaces
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*/
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static int
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ata_ioctl(struct cdev *dev, u_long cmd, caddr_t data,
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int32_t flag, struct thread *td)
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{
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device_t device, *children;
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struct ata_ioc_devices *devices = (struct ata_ioc_devices *)data;
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int *value = (int *)data;
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int i, nchildren, error = ENOTTY;
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switch (cmd) {
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case IOCATAGMAXCHANNEL:
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*value = devclass_get_maxunit(ata_devclass);
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error = 0;
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break;
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case IOCATAREINIT:
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if (*value > devclass_get_maxunit(ata_devclass) ||
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!(device = devclass_get_device(ata_devclass, *value)))
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return ENXIO;
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error = ata_reinit(device);
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ata_start(device);
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break;
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case IOCATAATTACH:
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if (*value > devclass_get_maxunit(ata_devclass) ||
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!(device = devclass_get_device(ata_devclass, *value)))
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return ENXIO;
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/* XXX SOS should enable channel HW on controller */
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error = ata_attach(device);
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break;
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case IOCATADETACH:
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if (*value > devclass_get_maxunit(ata_devclass) ||
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!(device = devclass_get_device(ata_devclass, *value)))
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return ENXIO;
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error = ata_detach(device);
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/* XXX SOS should disable channel HW on controller */
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break;
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case IOCATADEVICES:
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if (devices->channel > devclass_get_maxunit(ata_devclass) ||
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!(device = devclass_get_device(ata_devclass, devices->channel)))
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return ENXIO;
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bzero(devices->name[0], 32);
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bzero(&devices->params[0], sizeof(struct ata_params));
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bzero(devices->name[1], 32);
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bzero(&devices->params[1], sizeof(struct ata_params));
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if (!device_get_children(device, &children, &nchildren)) {
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for (i = 0; i < nchildren; i++) {
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if (children[i] && device_is_attached(children[i])) {
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struct ata_device *atadev = device_get_softc(children[i]);
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if (atadev->unit == ATA_MASTER) {
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strncpy(devices->name[0],
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device_get_nameunit(children[i]), 32);
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bcopy(&atadev->param, &devices->params[0],
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sizeof(struct ata_params));
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}
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if (atadev->unit == ATA_SLAVE) {
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strncpy(devices->name[1],
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device_get_nameunit(children[i]), 32);
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bcopy(&atadev->param, &devices->params[1],
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sizeof(struct ata_params));
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}
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}
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}
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free(children, M_TEMP);
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error = 0;
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}
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else
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error = ENODEV;
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break;
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default:
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if (ata_raid_ioctl_func)
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error = ata_raid_ioctl_func(cmd, data);
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}
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return error;
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}
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int
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ata_device_ioctl(device_t dev, u_long cmd, caddr_t data)
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{
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struct ata_device *atadev = device_get_softc(dev);
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struct ata_ioc_request *ioc_request = (struct ata_ioc_request *)data;
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struct ata_params *params = (struct ata_params *)data;
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int *mode = (int *)data;
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struct ata_request *request;
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caddr_t buf;
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int error;
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switch (cmd) {
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case IOCATAREQUEST:
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if (!(buf = malloc(ioc_request->count, M_ATA, M_NOWAIT))) {
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return ENOMEM;
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}
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if (!(request = ata_alloc_request())) {
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free(buf, M_ATA);
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return ENOMEM;
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}
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if (ioc_request->flags & ATA_CMD_WRITE) {
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error = copyin(ioc_request->data, buf, ioc_request->count);
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if (error) {
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free(buf, M_ATA);
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ata_free_request(request);
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return error;
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}
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}
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request->dev = dev;
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if (ioc_request->flags & ATA_CMD_ATAPI) {
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request->flags = ATA_R_ATAPI;
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bcopy(ioc_request->u.atapi.ccb, request->u.atapi.ccb, 16);
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}
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else {
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request->u.ata.command = ioc_request->u.ata.command;
|
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request->u.ata.feature = ioc_request->u.ata.feature;
|
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request->u.ata.lba = ioc_request->u.ata.lba;
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request->u.ata.count = ioc_request->u.ata.count;
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}
|
|
request->timeout = ioc_request->timeout;
|
|
request->data = buf;
|
|
request->bytecount = ioc_request->count;
|
|
request->transfersize = request->bytecount;
|
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if (ioc_request->flags & ATA_CMD_CONTROL)
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request->flags |= ATA_R_CONTROL;
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if (ioc_request->flags & ATA_CMD_READ)
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request->flags |= ATA_R_READ;
|
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if (ioc_request->flags & ATA_CMD_WRITE)
|
|
request->flags |= ATA_R_WRITE;
|
|
ata_queue_request(request);
|
|
if (!(request->flags & ATA_R_ATAPI)) {
|
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ioc_request->u.ata.command = request->u.ata.command;
|
|
ioc_request->u.ata.feature = request->u.ata.feature;
|
|
ioc_request->u.ata.lba = request->u.ata.lba;
|
|
ioc_request->u.ata.count = request->u.ata.count;
|
|
}
|
|
ioc_request->error = request->result;
|
|
if (ioc_request->flags & ATA_CMD_READ)
|
|
error = copyout(buf, ioc_request->data, ioc_request->count);
|
|
else
|
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error = 0;
|
|
free(buf, M_ATA);
|
|
ata_free_request(request);
|
|
return error;
|
|
|
|
case IOCATAGPARM:
|
|
bcopy(&atadev->param, params, sizeof(struct ata_params));
|
|
return 0;
|
|
|
|
case IOCATASMODE:
|
|
atadev->mode = *mode;
|
|
ATA_SETMODE(device_get_parent(dev), dev);
|
|
return 0;
|
|
|
|
case IOCATAGMODE:
|
|
*mode = atadev->mode;
|
|
return 0;
|
|
default:
|
|
return ENOTTY;
|
|
}
|
|
}
|
|
|
|
static void
|
|
ata_boot_attach(void)
|
|
{
|
|
struct ata_channel *ch;
|
|
int ctlr;
|
|
|
|
/* release the hook that got us here, only needed during boot */
|
|
if (ata_delayed_attach) {
|
|
config_intrhook_disestablish(ata_delayed_attach);
|
|
free(ata_delayed_attach, M_TEMP);
|
|
ata_delayed_attach = NULL;
|
|
}
|
|
|
|
/* kick of probe and attach on all channels */
|
|
for (ctlr = 0; ctlr < devclass_get_maxunit(ata_devclass); ctlr++) {
|
|
if ((ch = devclass_get_softc(ata_devclass, ctlr))) {
|
|
ata_identify(ch->dev);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* misc support functions
|
|
*/
|
|
static device_t
|
|
ata_add_child(device_t parent, struct ata_device *atadev, int unit)
|
|
{
|
|
device_t child;
|
|
|
|
if ((child = device_add_child(parent, NULL, unit))) {
|
|
device_set_softc(child, atadev);
|
|
device_quiet(child);
|
|
atadev->dev = child;
|
|
atadev->max_iosize = DEV_BSIZE;
|
|
atadev->mode = ATA_PIO_MAX;
|
|
}
|
|
return child;
|
|
}
|
|
|
|
static int
|
|
ata_getparam(device_t parent, struct ata_device *atadev)
|
|
{
|
|
struct ata_channel *ch = device_get_softc(parent);
|
|
struct ata_request *request;
|
|
u_int8_t command = 0;
|
|
int error = ENOMEM, retries = 2;
|
|
|
|
if (ch->devices &
|
|
(atadev->unit == ATA_MASTER ? ATA_ATA_MASTER : ATA_ATA_SLAVE))
|
|
command = ATA_ATA_IDENTIFY;
|
|
if (ch->devices &
|
|
(atadev->unit == ATA_MASTER ? ATA_ATAPI_MASTER : ATA_ATAPI_SLAVE))
|
|
command = ATA_ATAPI_IDENTIFY;
|
|
if (!command)
|
|
return ENXIO;
|
|
|
|
while (retries-- > 0 && error) {
|
|
if (!(request = ata_alloc_request()))
|
|
break;
|
|
request->dev = atadev->dev;
|
|
request->timeout = 1;
|
|
request->retries = 0;
|
|
request->u.ata.command = command;
|
|
request->flags = (ATA_R_READ|ATA_R_AT_HEAD|ATA_R_DIRECT|ATA_R_QUIET);
|
|
request->data = (void *)&atadev->param;
|
|
request->bytecount = sizeof(struct ata_params);
|
|
request->donecount = 0;
|
|
request->transfersize = DEV_BSIZE;
|
|
ata_queue_request(request);
|
|
error = request->result;
|
|
ata_free_request(request);
|
|
}
|
|
|
|
if (!error && (isprint(atadev->param.model[0]) ||
|
|
isprint(atadev->param.model[1]))) {
|
|
struct ata_params *atacap = &atadev->param;
|
|
char buffer[64];
|
|
#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 (!(!strncmp(atacap->model, "FX", 2) ||
|
|
!strncmp(atacap->model, "NEC", 3) ||
|
|
!strncmp(atacap->model, "Pioneer", 7) ||
|
|
!strncmp(atacap->model, "SHARP", 5))) {
|
|
bswap(atacap->model, sizeof(atacap->model));
|
|
bswap(atacap->revision, sizeof(atacap->revision));
|
|
bswap(atacap->serial, sizeof(atacap->serial));
|
|
}
|
|
btrim(atacap->model, sizeof(atacap->model));
|
|
bpack(atacap->model, atacap->model, sizeof(atacap->model));
|
|
btrim(atacap->revision, sizeof(atacap->revision));
|
|
bpack(atacap->revision, atacap->revision, sizeof(atacap->revision));
|
|
btrim(atacap->serial, sizeof(atacap->serial));
|
|
bpack(atacap->serial, atacap->serial, sizeof(atacap->serial));
|
|
sprintf(buffer, "%.40s/%.8s", atacap->model, atacap->revision);
|
|
device_set_desc_copy(atadev->dev, buffer);
|
|
if (bootverbose)
|
|
printf("ata%d-%s: pio=%s wdma=%s udma=%s cable=%s wire\n",
|
|
ch->unit, atadev->unit == ATA_MASTER ? "master":"slave",
|
|
ata_mode2str(ata_pmode(atacap)),
|
|
ata_mode2str(ata_wmode(atacap)),
|
|
ata_mode2str(ata_umode(atacap)),
|
|
(atacap->hwres & ATA_CABLE_ID) ? "80":"40");
|
|
|
|
if (atadev->param.config & ATA_PROTO_ATAPI) {
|
|
if (atapi_dma && ch->dma &&
|
|
(atadev->param.config & ATA_DRQ_MASK) != ATA_DRQ_INTR &&
|
|
ata_umode(&atadev->param) >= ATA_UDMA2)
|
|
atadev->mode = ATA_DMA_MAX;
|
|
}
|
|
else {
|
|
if (ata_dma && ch->dma)
|
|
atadev->mode = ATA_DMA_MAX;
|
|
}
|
|
}
|
|
else {
|
|
if (!error)
|
|
error = ENXIO;
|
|
}
|
|
return error;
|
|
}
|
|
|
|
int
|
|
ata_identify(device_t dev)
|
|
{
|
|
struct ata_channel *ch = device_get_softc(dev);
|
|
struct ata_device *master = NULL, *slave = NULL;
|
|
device_t master_child = NULL, slave_child = NULL;
|
|
int master_unit = -1, slave_unit = -1;
|
|
|
|
if (ch->devices & (ATA_ATA_MASTER | ATA_ATAPI_MASTER)) {
|
|
if (!(master = malloc(sizeof(struct ata_device),
|
|
M_ATA, M_NOWAIT | M_ZERO))) {
|
|
device_printf(dev, "out of memory\n");
|
|
return ENOMEM;
|
|
}
|
|
master->unit = ATA_MASTER;
|
|
}
|
|
if (ch->devices & (ATA_ATA_SLAVE | ATA_ATAPI_SLAVE)) {
|
|
if (!(slave = malloc(sizeof(struct ata_device),
|
|
M_ATA, M_NOWAIT | M_ZERO))) {
|
|
free(master, M_ATA);
|
|
device_printf(dev, "out of memory\n");
|
|
return ENOMEM;
|
|
}
|
|
slave->unit = ATA_SLAVE;
|
|
}
|
|
|
|
#ifdef ATA_STATIC_ID
|
|
if (ch->devices & ATA_ATA_MASTER)
|
|
master_unit = (device_get_unit(dev) << 1);
|
|
#endif
|
|
if (master && !(master_child = ata_add_child(dev, master, master_unit))) {
|
|
free(master, M_ATA);
|
|
master = NULL;
|
|
}
|
|
#ifdef ATA_STATIC_ID
|
|
if (ch->devices & ATA_ATA_SLAVE)
|
|
slave_unit = (device_get_unit(dev) << 1) + 1;
|
|
#endif
|
|
if (slave && !(slave_child = ata_add_child(dev, slave, slave_unit))) {
|
|
free(slave, M_ATA);
|
|
slave = NULL;
|
|
}
|
|
|
|
if (slave && ata_getparam(dev, slave)) {
|
|
device_delete_child(dev, slave_child);
|
|
free(slave, M_ATA);
|
|
}
|
|
if (master && ata_getparam(dev, master)) {
|
|
device_delete_child(dev, master_child);
|
|
free(master, M_ATA);
|
|
}
|
|
|
|
bus_generic_probe(dev);
|
|
bus_generic_attach(dev);
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
ata_default_registers(device_t dev)
|
|
{
|
|
struct ata_channel *ch = device_get_softc(dev);
|
|
|
|
/* fill in the defaults from whats setup already */
|
|
ch->r_io[ATA_ERROR].res = ch->r_io[ATA_FEATURE].res;
|
|
ch->r_io[ATA_ERROR].offset = ch->r_io[ATA_FEATURE].offset;
|
|
ch->r_io[ATA_IREASON].res = ch->r_io[ATA_COUNT].res;
|
|
ch->r_io[ATA_IREASON].offset = ch->r_io[ATA_COUNT].offset;
|
|
ch->r_io[ATA_STATUS].res = ch->r_io[ATA_COMMAND].res;
|
|
ch->r_io[ATA_STATUS].offset = ch->r_io[ATA_COMMAND].offset;
|
|
ch->r_io[ATA_ALTSTAT].res = ch->r_io[ATA_CONTROL].res;
|
|
ch->r_io[ATA_ALTSTAT].offset = ch->r_io[ATA_CONTROL].offset;
|
|
}
|
|
|
|
u_int8_t
|
|
ata_modify_if_48bit(struct ata_request *request)
|
|
{
|
|
struct ata_device *atadev = device_get_softc(request->dev);
|
|
u_int8_t command = request->u.ata.command;
|
|
|
|
atadev->flags &= ~ATA_D_48BIT_ACTIVE;
|
|
|
|
if ((request->u.ata.lba >= ATA_MAX_28BIT_LBA ||
|
|
request->u.ata.count > 256) &&
|
|
atadev->param.support.command2 & ATA_SUPPORT_ADDRESS48) {
|
|
|
|
/* translate command into 48bit version */
|
|
switch (command) {
|
|
case ATA_READ:
|
|
command = ATA_READ48; break;
|
|
case ATA_READ_MUL:
|
|
command = ATA_READ_MUL48; break;
|
|
case ATA_READ_DMA:
|
|
command = ATA_READ_DMA48; break;
|
|
case ATA_READ_DMA_QUEUED:
|
|
command = ATA_READ_DMA_QUEUED48; break;
|
|
case ATA_WRITE:
|
|
command = ATA_WRITE48; break;
|
|
case ATA_WRITE_MUL:
|
|
command = ATA_WRITE_MUL48; break;
|
|
case ATA_WRITE_DMA:
|
|
command = ATA_WRITE_DMA48; break;
|
|
case ATA_WRITE_DMA_QUEUED:
|
|
command = ATA_WRITE_DMA_QUEUED48; break;
|
|
case ATA_FLUSHCACHE:
|
|
command = ATA_FLUSHCACHE48; break;
|
|
default:
|
|
return command;
|
|
}
|
|
atadev->flags |= ATA_D_48BIT_ACTIVE;
|
|
}
|
|
return command;
|
|
}
|
|
|
|
void
|
|
ata_udelay(int interval)
|
|
{
|
|
/* for now just use DELAY, the timer/sleep subsytems are not there yet */
|
|
if (1 || interval < (1000000/hz) || ata_delayed_attach)
|
|
DELAY(interval);
|
|
else
|
|
tsleep(&interval, PRIBIO, "ataslp", interval/(1000000/hz));
|
|
}
|
|
|
|
char *
|
|
ata_mode2str(int mode)
|
|
{
|
|
switch (mode) {
|
|
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_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";
|
|
case ATA_SA300: return "SATA300";
|
|
default:
|
|
if (mode & ATA_DMA_MASK)
|
|
return "BIOSDMA";
|
|
else
|
|
return "BIOSPIO";
|
|
}
|
|
}
|
|
|
|
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(device_t dev, int mode, int maxmode)
|
|
{
|
|
struct ata_device *atadev = device_get_softc(dev);
|
|
|
|
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
|
|
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 == '_')
|
|
*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;
|
|
}
|
|
|
|
|
|
/*
|
|
* module handeling
|
|
*/
|
|
static int
|
|
ata_module_event_handler(module_t mod, int what, void *arg)
|
|
{
|
|
static struct cdev *atacdev;
|
|
|
|
switch (what) {
|
|
case MOD_LOAD:
|
|
/* register controlling device */
|
|
atacdev = make_dev(&ata_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, "ata");
|
|
|
|
if (cold) {
|
|
/* 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 EIO;
|
|
}
|
|
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);
|
|
}
|
|
}
|
|
return 0;
|
|
|
|
case MOD_UNLOAD:
|
|
/* deregister controlling device */
|
|
destroy_dev(atacdev);
|
|
return 0;
|
|
|
|
default:
|
|
return EOPNOTSUPP;
|
|
}
|
|
}
|
|
|
|
static moduledata_t ata_moduledata = { "ata", ata_module_event_handler, NULL };
|
|
DECLARE_MODULE(ata, ata_moduledata, SI_SUB_CONFIGURE, SI_ORDER_SECOND);
|
|
MODULE_VERSION(ata, 1);
|
|
|
|
static void
|
|
ata_init(void)
|
|
{
|
|
ata_request_zone = uma_zcreate("ata_request", sizeof(struct ata_request),
|
|
NULL, NULL, NULL, NULL, 0, 0);
|
|
ata_composite_zone = uma_zcreate("ata_composite",
|
|
sizeof(struct ata_composite),
|
|
NULL, NULL, NULL, NULL, 0, 0);
|
|
}
|
|
SYSINIT(ata_register, SI_SUB_DRIVERS, SI_ORDER_SECOND, ata_init, NULL);
|
|
|
|
static void
|
|
ata_uninit(void)
|
|
{
|
|
uma_zdestroy(ata_composite_zone);
|
|
uma_zdestroy(ata_request_zone);
|
|
}
|
|
SYSUNINIT(ata_unregister, SI_SUB_DRIVERS, SI_ORDER_SECOND, ata_uninit, NULL);
|