Aren/NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
8a398d3980
NetBSD/sys/dev/ieee1394/fwmem.c
kiyohara 29417afebc firewire.c sync to Rev.1.86 for FreeBSD. 
firewirereg.h sync to Rev.1.41 for FreeBSD.
fwcrom.c sync to Rev.1.14 for FreeBSD.
fwdev.c sync to Rev.1.49 for FreeBSD.
fwmem.c sync to Rev.1.32 for FreeBSD.
fwohci.c sync to Rev.1.86 for FreeBSD.
fwohcivar.h sync to Rev.1.15 for FreeBSD.
if_fwip.c sync to Rev.1.14 for FreeBSD.
if_fwipvar.h sync to Rev.1.4 for FreeBSD.
sbp.c sync to Rev.1.89 for FreeBSD.
2007-04-21 15:27:43 +00:00

565 lines
13 KiB
C
Raw Blame History

/* $NetBSD: fwmem.c,v 1.4 2007/04/21 15:27:43 kiyohara Exp $ */
/*-
* Copyright (c) 2002-2003
* Hidetoshi Shimokawa. 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.
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
*
* This product includes software developed by Hidetoshi Shimokawa.
*
* 4. Neither the name of the author nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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>
#ifdef __FBSDID
__FBSDID("$FreeBSD: /repoman/r/ncvs/src/sys/dev/firewire/fwmem.c,v 1.32 2007/03/16 05:11:42 simokawa Exp $");
#endif
#if defined(__FreeBSD__)
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/types.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/conf.h>
#include <sys/sysctl.h>
#if defined(__DragonFly__) || __FreeBSD_version < 500000
#include <sys/buf.h>
#else
#include <sys/bio.h>
#endif
#include <sys/bus.h>
#include <machine/bus.h>
#include <sys/signal.h>
#include <sys/mman.h>
#include <sys/ioccom.h>
#include <sys/fcntl.h>
#include <sys/ktr.h>
#ifdef __DragonFly__
#include "fw_port.h"
#include "firewire.h"
#include "firewirereg.h"
#include "fwmem.h"
#else
#include <dev/firewire/fw_port.h>
#include <dev/firewire/firewire.h>
#include <dev/firewire/firewirereg.h>
#include <dev/firewire/fwmem.h>
#endif
#elif defined(__NetBSD__)
#include <sys/param.h>
#include <sys/device.h>
#include <sys/errno.h>
#include <sys/buf.h>
#include <sys/conf.h>
#include <sys/fcntl.h>
#include <sys/malloc.h>
#include <sys/sysctl.h>
#include <machine/bus.h>
#include <dev/ieee1394/fw_port.h>
#include <dev/ieee1394/firewire.h>
#include <dev/ieee1394/firewirereg.h>
#include <dev/ieee1394/fwmem.h>
#endif
static int fwmem_speed=2, fwmem_debug=0;
static struct fw_eui64 fwmem_eui64;
#if defined(__FreeBSD__)
SYSCTL_DECL(_hw_firewire);
SYSCTL_NODE(_hw_firewire, OID_AUTO, fwmem, CTLFLAG_RD, 0,
"FireWire Memory Access");
SYSCTL_UINT(_hw_firewire_fwmem, OID_AUTO, eui64_hi, CTLFLAG_RW,
&fwmem_eui64.hi, 0, "Fwmem target EUI64 high");
SYSCTL_UINT(_hw_firewire_fwmem, OID_AUTO, eui64_lo, CTLFLAG_RW,
&fwmem_eui64.lo, 0, "Fwmem target EUI64 low");
SYSCTL_INT(_hw_firewire_fwmem, OID_AUTO, speed, CTLFLAG_RW, &fwmem_speed, 0,
"Fwmem link speed");
SYSCTL_INT(_debug, OID_AUTO, fwmem_debug, CTLFLAG_RW, &fwmem_debug, 0,
"Fwmem driver debug flag");
MALLOC_DEFINE(M_FWMEM, "fwmem", "fwmem/FireWire");
#elif defined(__NetBSD__)
static int sysctl_fwmem_verify(SYSCTLFN_PROTO, int, int);
static int sysctl_fwmem_verify_speed(SYSCTLFN_PROTO);
/*
* Setup sysctl(3) MIB, hw.fwmem.*
*
* TBD condition CTLFLAG_PERMANENT on being an LKM or not
*/
SYSCTL_SETUP(sysctl_fwmem, "sysctl fwmem subtree setup")
{
int rc, fwmem_node_num;
const struct sysctlnode *node;
if ((rc = sysctl_createv(clog, 0, NULL, NULL,
CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw", NULL,
NULL, 0, NULL, 0, CTL_HW, CTL_EOL)) != 0) {
goto err;
}
if ((rc = sysctl_createv(clog, 0, NULL, &node,
CTLFLAG_PERMANENT, CTLTYPE_NODE, "fwmem",
SYSCTL_DESCR("IEEE1394 Memory Access"),
NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) {
goto err;
}
fwmem_node_num = node->sysctl_num;
/* fwmem target EUI64 high/low */
if ((rc = sysctl_createv(clog, 0, NULL, &node,
CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT,
"eui64_hi", SYSCTL_DESCR("Fwmem target EUI64 high"),
NULL, 0, &fwmem_eui64.hi,
0, CTL_HW, fwmem_node_num, CTL_CREATE, CTL_EOL)) != 0) {
goto err;
}
if ((rc = sysctl_createv(clog, 0, NULL, &node,
CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT,
"eui64_lo", SYSCTL_DESCR("Fwmem target EUI64 low"),
NULL, 0, &fwmem_eui64.lo,
0, CTL_HW, fwmem_node_num, CTL_CREATE, CTL_EOL)) != 0) {
goto err;
}
/* fwmem link speed */
if ((rc = sysctl_createv(clog, 0, NULL, &node,
CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT,
"speed", SYSCTL_DESCR("Fwmem link speed"),
sysctl_fwmem_verify_speed, 0, &fwmem_speed,
0, CTL_HW, fwmem_node_num, CTL_CREATE, CTL_EOL)) != 0) {
goto err;
}
/* fwmem driver debug flag */
if ((rc = sysctl_createv(clog, 0, NULL, &node,
CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT,
"fwmem_debug", SYSCTL_DESCR("Fwmem driver debug flag"),
NULL, 0, &fwmem_debug,
0, CTL_HW, fwmem_node_num, CTL_CREATE, CTL_EOL)) != 0) {
goto err;
}
return;
err:
printf("%s: sysctl_createv failed (rc = %d)\n", __func__, rc);
}
static int
sysctl_fwmem_verify(SYSCTLFN_ARGS, int lower, int upper)
{
int error, t;
struct sysctlnode node;
node = *rnode;
t = *(int*)rnode->sysctl_data;
node.sysctl_data = &t;
error = sysctl_lookup(SYSCTLFN_CALL(&node));
if (error || newp == NULL)
return (error);
if (t < lower || t > upper)
return (EINVAL);
*(int*)rnode->sysctl_data = t;
return (0);
}
static int
sysctl_fwmem_verify_speed(SYSCTLFN_ARGS)
{
return (sysctl_fwmem_verify(SYSCTLFN_CALL(rnode), 0, FWSPD_S400));
}
MALLOC_DEFINE(M_FWMEM, "fwmem", "fwmem/IEEE1394");
#endif
#define MAXLEN (512 << fwmem_speed)
struct fwmem_softc {
struct fw_eui64 eui;
int refcount;
STAILQ_HEAD(, fw_xfer) xferlist;
};
static struct fw_xfer *
fwmem_xfer_req(
struct fw_device *fwdev,
void *sc,
int spd,
int slen,
int rlen,
void *hand)
{
struct fw_xfer *xfer;
xfer = fw_xfer_alloc(M_FWMEM);
if (xfer == NULL)
return NULL;
xfer->fc = fwdev->fc;
xfer->send.hdr.mode.hdr.dst = FWLOCALBUS | fwdev->dst;
if (spd < 0)
xfer->send.spd = fwdev->speed;
else
xfer->send.spd = min(spd, fwdev->speed);
xfer->hand = hand;
xfer->sc = sc;
xfer->send.pay_len = slen;
xfer->recv.pay_len = rlen;
return xfer;
}
struct fw_xfer *
fwmem_read_quad(
struct fw_device *fwdev,
void * sc,
uint8_t spd,
uint16_t dst_hi,
uint32_t dst_lo,
void *data,
void (*hand)(struct fw_xfer *))
{
struct fw_xfer *xfer;
struct fw_pkt *fp;
xfer = fwmem_xfer_req(fwdev, (void *)sc, spd, 0, 4, hand);
if (xfer == NULL) {
return NULL;
}
fp = &xfer->send.hdr;
fp->mode.rreqq.tcode = FWTCODE_RREQQ;
fp->mode.rreqq.dest_hi = dst_hi;
fp->mode.rreqq.dest_lo = dst_lo;
xfer->send.payload = NULL;
xfer->recv.payload = (uint32_t *)data;
if (fwmem_debug)
printf("fwmem_read_quad: %d %04x:%08x\n", fwdev->dst,
dst_hi, dst_lo);
if (fw_asyreq(xfer->fc, -1, xfer) == 0)
return xfer;
fw_xfer_free(xfer);
return NULL;
}
struct fw_xfer *
fwmem_write_quad(
struct fw_device *fwdev,
void * sc,
uint8_t spd,
uint16_t dst_hi,
uint32_t dst_lo,
void *data,
void (*hand)(struct fw_xfer *))
{
struct fw_xfer *xfer;
struct fw_pkt *fp;
xfer = fwmem_xfer_req(fwdev, sc, spd, 0, 0, hand);
if (xfer == NULL)
return NULL;
fp = &xfer->send.hdr;
fp->mode.wreqq.tcode = FWTCODE_WREQQ;
fp->mode.wreqq.dest_hi = dst_hi;
fp->mode.wreqq.dest_lo = dst_lo;
fp->mode.wreqq.data = *(uint32_t *)data;
xfer->send.payload = xfer->recv.payload = NULL;
if (fwmem_debug)
printf("fwmem_write_quad: %d %04x:%08x %08x\n", fwdev->dst,
dst_hi, dst_lo, *(uint32_t *)data);
if (fw_asyreq(xfer->fc, -1, xfer) == 0)
return xfer;
fw_xfer_free(xfer);
return NULL;
}
struct fw_xfer *
fwmem_read_block(
struct fw_device *fwdev,
void * sc,
uint8_t spd,
uint16_t dst_hi,
uint32_t dst_lo,
int len,
void *data,
void (*hand)(struct fw_xfer *))
{
struct fw_xfer *xfer;
struct fw_pkt *fp;
xfer = fwmem_xfer_req(fwdev, sc, spd, 0, roundup2(len, 4), hand);
if (xfer == NULL)
return NULL;
fp = &xfer->send.hdr;
fp->mode.rreqb.tcode = FWTCODE_RREQB;
fp->mode.rreqb.dest_hi = dst_hi;
fp->mode.rreqb.dest_lo = dst_lo;
fp->mode.rreqb.len = len;
fp->mode.rreqb.extcode = 0;
xfer->send.payload = NULL;
xfer->recv.payload = data;
if (fwmem_debug)
printf("fwmem_read_block: %d %04x:%08x %d\n", fwdev->dst,
dst_hi, dst_lo, len);
if (fw_asyreq(xfer->fc, -1, xfer) == 0)
return xfer;
fw_xfer_free(xfer);
return NULL;
}
struct fw_xfer *
fwmem_write_block(
struct fw_device *fwdev,
void * sc,
uint8_t spd,
uint16_t dst_hi,
uint32_t dst_lo,
int len,
void *data,
void (*hand)(struct fw_xfer *))
{
struct fw_xfer *xfer;
struct fw_pkt *fp;
xfer = fwmem_xfer_req(fwdev, sc, spd, len, 0, hand);
if (xfer == NULL)
return NULL;
fp = &xfer->send.hdr;
fp->mode.wreqb.tcode = FWTCODE_WREQB;
fp->mode.wreqb.dest_hi = dst_hi;
fp->mode.wreqb.dest_lo = dst_lo;
fp->mode.wreqb.len = len;
fp->mode.wreqb.extcode = 0;
xfer->send.payload = data;
xfer->recv.payload = NULL;
if (fwmem_debug)
printf("fwmem_write_block: %d %04x:%08x %d\n", fwdev->dst,
dst_hi, dst_lo, len);
if (fw_asyreq(xfer->fc, -1, xfer) == 0)
return xfer;
fw_xfer_free(xfer);
return NULL;
}
FW_OPEN(fwmem)
{
struct fwmem_softc *fms;
struct fw_xfer *xfer;
FW_OPEN_START;
if (dev->si_drv1 != NULL) {
if ((flags & FWRITE) != 0)
return (EBUSY);
fms = (struct fwmem_softc *)dev->si_drv1;
fms->refcount ++;
} else {
fms = (struct fwmem_softc *)malloc(sizeof(struct fwmem_softc),
M_FWMEM, M_WAITOK);
if (fms == NULL)
return ENOMEM;
bcopy(&fwmem_eui64, &fms->eui, sizeof(struct fw_eui64));
dev->si_drv1 = (void *)fms;
dev->si_iosize_max = DFLTPHYS;
fms->refcount = 1;
STAILQ_INIT(&fms->xferlist);
xfer = fw_xfer_alloc(M_FWMEM);
STAILQ_INSERT_TAIL(&fms->xferlist, xfer, link);
}
if (fwmem_debug)
printf("%s: refcount=%d\n", __func__, fms->refcount);
return (0);
}
FW_CLOSE(fwmem)
{
struct fwmem_softc *fms;
struct fw_xfer *xfer;
FW_CLOSE_START;
fms = (struct fwmem_softc *)dev->si_drv1;
fms->refcount --;
if (fwmem_debug)
printf("%s: refcount=%d\n", __func__, fms->refcount);
if (fms->refcount < 1) {
while ((xfer = STAILQ_FIRST(&fms->xferlist)) != NULL) {
STAILQ_REMOVE_HEAD(&fms->xferlist, link);
fw_xfer_free(xfer);
}
free(dev->si_drv1, M_FW);
dev->si_drv1 = NULL;
}
return (0);
}
static void
fwmem_biodone(struct fw_xfer *xfer)
{
struct bio *bp;
bp = (struct bio *)xfer->sc;
bp->bio_error = xfer->resp;
if (bp->bio_error != 0) {
if (fwmem_debug)
printf("%s: err=%d\n", __func__, bp->bio_error);
bp->bio_flags |= BIO_ERROR;
bp->bio_resid = bp->bio_bcount;
}
CTR0(KTR_DEV, "biodone0");
fw_xfer_free(xfer);
CTR0(KTR_DEV, "biodone1");
biodone(bp);
CTR0(KTR_DEV, "biodone2");
}
void
fwmem_strategy(struct bio *bp)
{
FW_STRATEGY_START;
struct fwmem_softc *fms;
struct fw_device *fwdev;
struct fw_xfer *xfer;
int err=0, s, iolen;
CTR0(KTR_DEV, "strategy");
/* XXX check request length */
s = splfw();
fms = (struct fwmem_softc *)dev->si_drv1;
fwdev = fw_noderesolve_eui64(sc->fc, &fms->eui);
if (fwdev == NULL) {
if (fwmem_debug)
printf("fwmem: no such device ID:%08x%08x\n",
fms->eui.hi, fms->eui.lo);
err = EINVAL;
goto error;
}
iolen = MIN(bp->bio_bcount, MAXLEN);
if ((bp->bio_cmd & BIO_READ) == BIO_READ) {
if (iolen == 4 && (bp->bio_offset & 3) == 0)
xfer = fwmem_read_quad(fwdev,
(void *) bp, fwmem_speed,
bp->bio_offset >> 32, bp->bio_offset & 0xffffffff,
bp->bio_data, fwmem_biodone);
else
xfer = fwmem_read_block(fwdev,
(void *) bp, fwmem_speed,
bp->bio_offset >> 32, bp->bio_offset & 0xffffffff,
iolen, bp->bio_data, fwmem_biodone);
} else {
if (iolen == 4 && (bp->bio_offset & 3) == 0)
xfer = fwmem_write_quad(fwdev,
(void *)bp, fwmem_speed,
bp->bio_offset >> 32, bp->bio_offset & 0xffffffff,
bp->bio_data, fwmem_biodone);
else
xfer = fwmem_write_block(fwdev,
(void *)bp, fwmem_speed,
bp->bio_offset >> 32, bp->bio_offset & 0xffffffff,
iolen, bp->bio_data, fwmem_biodone);
}
if (xfer == NULL) {
err = EIO;
goto error;
}
/* XXX */
bp->bio_resid = bp->bio_bcount - iolen;
error:
splx(s);
if (err != 0) {
if (fwmem_debug)
printf("%s: err=%d\n", __func__, err);
bp->bio_error = err;
bp->bio_flags |= BIO_ERROR;
bp->bio_resid = bp->bio_bcount;
biodone(bp);
}
}
FW_IOCTL(fwmem)
{
FW_IOCTL_START;
struct fwmem_softc *fms;
int err = 0;
fms = (struct fwmem_softc *)dev->si_drv1;
switch (cmd) {
case FW_SDEUI64:
bcopy(data, &fms->eui, sizeof(struct fw_eui64));
break;
case FW_GDEUI64:
bcopy(&fms->eui, data, sizeof(struct fw_eui64));
break;
default:
err = EINVAL;
}
return(err);
}
FW_POLL(fwmem)
{
return EINVAL;
}
FW_MMAP(fwmem)
{
return EINVAL;
}
Reference in New Issue View Git Blame Copy Permalink