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NetBSD/sys/dev/ieee1394/fwohci.c

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/* $NetBSD: fwohci.c,v 1.14 2000/12/13 11:30:15 enami Exp $ */
/*-
* Copyright (c) 2000 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Matt Thomas of 3am Software Foundry.
*
* 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 the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
/*
* IEEE1394 Open Host Controller Interface
* based on OHCI Specification 1.1 (January 6, 2000)
* The first version to support network interface part is wrtten by
* Atsushi Onoe <onoe@netbsd.org>.
*/
#include "opt_inet.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/callout.h>
#include <sys/device.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/mbuf.h>
#if __NetBSD_Version__ >= 105010000
#include <uvm/uvm_extern.h>
#else
#include <vm/vm.h>
#endif
#include <machine/bus.h>
#include <dev/ieee1394/ieee1394reg.h>
#include <dev/ieee1394/fwohcireg.h>
#include <dev/ieee1394/ieee1394var.h>
#include <dev/ieee1394/fwohcivar.h>
static const char * const ieee1394_speeds[] = { IEEE1394_SPD_STRINGS };
#if 0
static int fwohci_dnamem_alloc(struct fwohci_softc *sc, int size, int alignment,
bus_dmamap_t *mapp, caddr_t *kvap, int flags);
#endif
static void fwohci_hw_init(struct fwohci_softc *);
static void fwohci_power(int, void *);
static void fwohci_shutdown(void *);
static int fwohci_desc_alloc(struct fwohci_softc *);
static struct fwohci_desc *fwohci_desc_get(struct fwohci_softc *, int);
static void fwohci_desc_put(struct fwohci_softc *, struct fwohci_desc *, int);
static int fwohci_ctx_alloc(struct fwohci_softc *, struct fwohci_ctx **,
int, int);
static void fwohci_ctx_free(struct fwohci_softc *, struct fwohci_ctx *);
static void fwohci_ctx_init(struct fwohci_softc *, struct fwohci_ctx *);
static int fwohci_buf_alloc(struct fwohci_softc *, struct fwohci_buf *);
static void fwohci_buf_free(struct fwohci_softc *, struct fwohci_buf *);
static void fwohci_buf_init(struct fwohci_softc *);
static void fwohci_buf_start(struct fwohci_softc *);
static void fwohci_buf_stop(struct fwohci_softc *);
static void fwohci_buf_next(struct fwohci_softc *, struct fwohci_ctx *);
static int fwohci_buf_pktget(struct fwohci_softc *, struct fwohci_ctx *,
caddr_t *, int);
static int fwohci_buf_input(struct fwohci_softc *, struct fwohci_ctx *,
struct fwohci_pkt *);
static u_int8_t fwohci_phy_read(struct fwohci_softc *, u_int8_t);
static void fwohci_phy_write(struct fwohci_softc *, u_int8_t, u_int8_t);
static void fwohci_phy_busreset(struct fwohci_softc *);
static void fwohci_phy_input(struct fwohci_softc *, struct fwohci_pkt *);
static int fwohci_handler_set(struct fwohci_softc *, int, u_int32_t, u_int32_t,
int (*)(struct fwohci_softc *, void *, struct fwohci_pkt *),
void *);
static void fwohci_arrq_input(struct fwohci_softc *, struct fwohci_ctx *);
static void fwohci_arrs_input(struct fwohci_softc *, struct fwohci_ctx *);
static void fwohci_ir_input(struct fwohci_softc *, struct fwohci_ctx *);
static int fwohci_at_output(struct fwohci_softc *, struct fwohci_ctx *,
struct fwohci_pkt *);
static void fwohci_at_done(struct fwohci_softc *, struct fwohci_ctx *, int);
static void fwohci_atrs_output(struct fwohci_softc *, int, struct fwohci_pkt *,
struct fwohci_pkt *);
static void fwohci_configrom_init(struct fwohci_softc *);
static void fwohci_selfid_init(struct fwohci_softc *);
static int fwohci_selfid_input(struct fwohci_softc *);
static void fwohci_csr_init(struct fwohci_softc *);
static int fwohci_csr_input(struct fwohci_softc *, void *,
struct fwohci_pkt *);
static void fwohci_uid_collect(struct fwohci_softc *);
static int fwohci_uid_input(struct fwohci_softc *, void *,
struct fwohci_pkt *);
static int fwohci_uid_lookup(struct fwohci_softc *, const u_int8_t *);
static int fwohci_if_inreg(struct device *, u_int32_t, u_int32_t,
void (*)(struct device *, struct mbuf *));
static int fwohci_if_input(struct fwohci_softc *, void *, struct fwohci_pkt *);
static int fwohci_if_output(struct device *, struct mbuf *,
void (*)(struct device *, struct mbuf *));
#ifdef FW_DEBUG
int fw_verbose = 0;
int fw_dump = 0;
#endif
int
fwohci_init(struct fwohci_softc *sc, const struct evcnt *ev)
{
int i;
u_int32_t val;
#if 0
int error;
#endif
evcnt_attach_dynamic(&sc->sc_intrcnt, EVCNT_TYPE_INTR, ev,
sc->sc_sc1394.sc1394_dev.dv_xname, "intr");
/*
* Wait for reset completion
*/
for (i = 0; i < OHCI_LOOP; i++) {
val = OHCI_CSR_READ(sc, OHCI_REG_HCControlClear);
if ((val & OHCI_HCControl_SoftReset) == 0)
break;
}
/* What dialect of OHCI is this device?
*/
val = OHCI_CSR_READ(sc, OHCI_REG_Version);
printf("%s: OHCI %u.%u", sc->sc_sc1394.sc1394_dev.dv_xname,
OHCI_Version_GET_Version(val), OHCI_Version_GET_Revision(val));
/* Is the Global UID ROM present?
*/
if ((val & OHCI_Version_GUID_ROM) == 0) {
printf("\n%s: fatal: no global UID ROM\n", sc->sc_sc1394.sc1394_dev.dv_xname);
return -1;
} else {
/* Extract the Global UID
*/
val = OHCI_CSR_READ(sc, OHCI_REG_GUIDHi);
sc->sc_sc1394.sc1394_guid[0] = (val >> 24) & 0xff;
sc->sc_sc1394.sc1394_guid[1] = (val >> 16) & 0xff;
sc->sc_sc1394.sc1394_guid[2] = (val >> 8) & 0xff;
sc->sc_sc1394.sc1394_guid[3] = (val >> 0) & 0xff;
val = OHCI_CSR_READ(sc, OHCI_REG_GUIDLo);
sc->sc_sc1394.sc1394_guid[4] = (val >> 24) & 0xff;
sc->sc_sc1394.sc1394_guid[5] = (val >> 16) & 0xff;
sc->sc_sc1394.sc1394_guid[6] = (val >> 8) & 0xff;
sc->sc_sc1394.sc1394_guid[7] = (val >> 0) & 0xff;
}
printf(", %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x",
sc->sc_sc1394.sc1394_guid[0], sc->sc_sc1394.sc1394_guid[1],
sc->sc_sc1394.sc1394_guid[2], sc->sc_sc1394.sc1394_guid[3],
sc->sc_sc1394.sc1394_guid[4], sc->sc_sc1394.sc1394_guid[5],
sc->sc_sc1394.sc1394_guid[6], sc->sc_sc1394.sc1394_guid[7]);
/* Get the maximum link speed and receive size
*/
val = OHCI_CSR_READ(sc, OHCI_REG_BusOptions);
sc->sc_sc1394.sc1394_link_speed =
(val & OHCI_BusOptions_LinkSpd_MASK)
>> OHCI_BusOptions_LinkSpd_BITPOS;
if (sc->sc_sc1394.sc1394_link_speed < IEEE1394_SPD_MAX) {
printf(", %s", ieee1394_speeds[sc->sc_sc1394.sc1394_link_speed]);
} else {
printf(", unknown speed %u", sc->sc_sc1394.sc1394_link_speed);
}
/* MaxRec is encoded as log2(max_rec_octets)-1
*/
sc->sc_sc1394.sc1394_max_receive =
1 << (((val & OHCI_BusOptions_MaxRec_MASK)
>> OHCI_BusOptions_MaxRec_BITPOS) + 1);
printf(", %u max_rec", sc->sc_sc1394.sc1394_max_receive);
/*
* Count how many isochronous ctx we have.
*/
OHCI_CSR_WRITE(sc, OHCI_REG_IsoRecvIntMaskSet, ~0);
val = OHCI_CSR_READ(sc, OHCI_REG_IsoRecvIntMaskClear);
OHCI_CSR_WRITE(sc, OHCI_REG_IsoRecvIntMaskClear, ~0);
for (i = 0; val != 0; val >>= 1) {
if (val & 0x1)
i++;
}
sc->sc_isoctx = i;
printf(", %d iso_ctx", sc->sc_isoctx);
printf("\n");
#if 0
error = fwohci_dnamem_alloc(sc, OHCI_CONFIG_SIZE, OHCI_CONFIG_ALIGNMENT,
&sc->sc_configrom_map,
(caddr_t *) &sc->sc_configrom,
BUS_DMA_WAITOK|BUS_DMA_COHERENT);
return error;
#endif
/*
* Enable Link Power
*/
OHCI_CSR_WRITE(sc, OHCI_REG_HCControlSet, OHCI_HCControl_LPS);
/*
* Allocate descriptors
*/
if (fwohci_desc_alloc(sc))
return -1;
/*
* Allocate DMA Context
*/
fwohci_ctx_alloc(sc, &sc->sc_ctx_arrq, OHCI_BUF_ARRQ_CNT,
OHCI_CTX_ASYNC_RX_REQUEST);
fwohci_ctx_alloc(sc, &sc->sc_ctx_arrs, OHCI_BUF_ARRS_CNT,
OHCI_CTX_ASYNC_RX_RESPONSE);
fwohci_ctx_alloc(sc, &sc->sc_ctx_atrq, 0, OHCI_CTX_ASYNC_TX_REQUEST);
fwohci_ctx_alloc(sc, &sc->sc_ctx_atrs, 0, OHCI_CTX_ASYNC_TX_RESPONSE);
sc->sc_ctx_ir = malloc(sizeof(sc->sc_ctx_ir[0]) * sc->sc_isoctx,
M_DEVBUF, M_WAITOK);
for (i = 0; i < sc->sc_isoctx; i++) {
sc->sc_ctx_ir[i] = NULL;
#if 0
fwohci_ctx_alloc(sc, &sc->sc_ctx_ir[i], OHCI_BUF_IR_CNT, i);
sc->sc_ctx_ir[i]->fc_isoch = 1;
#endif
}
/*
* Allocate buffer for configuration ROM and SelfID buffer
*/
fwohci_buf_alloc(sc, &sc->sc_buf_cnfrom);
fwohci_buf_alloc(sc, &sc->sc_buf_selfid);
/*
* establish hooks for shutdown and suspend/resume
*/
sc->sc_shutdownhook = shutdownhook_establish(fwohci_shutdown, sc);
sc->sc_powerhook = powerhook_establish(fwohci_power, sc);
callout_init(&sc->sc_selfid_callout);
/*
* Initialize hardware registers.
*/
fwohci_hw_init(sc);
/*
* Initiate Bus Reset
*/
config_defer(&sc->sc_sc1394.sc1394_dev,
(void (*)(struct device *))fwohci_phy_busreset);
sc->sc_sc1394.sc1394_ifinreg = fwohci_if_inreg;
sc->sc_sc1394.sc1394_ifoutput = fwohci_if_output;
sc->sc_sc1394.sc1394_if = config_found(&sc->sc_sc1394.sc1394_dev,
"fw", fwohci_print);
return 0;
}
int
fwohci_intr(void *arg)
{
struct fwohci_softc * const sc = arg;
int i;
int progress = 0;
u_int32_t intmask, iso;
for (;;) {
intmask = OHCI_CSR_READ(sc, OHCI_REG_IntEventClear);
if (intmask == 0)
return progress;
OHCI_CSR_WRITE(sc, OHCI_REG_IntEventClear,
intmask & ~OHCI_Int_BusReset);
#ifdef FW_DEBUG
if (fw_verbose) {
printf("%s: intmask=0x%08x:",
sc->sc_sc1394.sc1394_dev.dv_xname, intmask);
if (intmask & OHCI_Int_CycleTooLong)
printf(" CycleTooLong");
if (intmask & OHCI_Int_UnrecoverableError)
printf(" UnrecoverableError");
if (intmask & OHCI_Int_CycleInconsistent)
printf(" CycleInconsistent");
if (intmask & OHCI_Int_BusReset)
printf(" BusReset");
if (intmask & OHCI_Int_SelfIDComplete)
printf(" SelfIDComplete");
if (intmask & OHCI_Int_LockRespErr)
printf(" LockRespErr");
if (intmask & OHCI_Int_PostedWriteErr)
printf(" PostedWriteErr");
if (intmask & OHCI_Int_ReqTxComplete)
printf(" ReqTxComplete(0x%04x)",
OHCI_ASYNC_DMA_READ(sc,
OHCI_CTX_ASYNC_TX_REQUEST,
OHCI_SUBREG_ContextControlClear));
if (intmask & OHCI_Int_RespTxComplete)
printf(" RespTxComplete(0x%04x)",
OHCI_ASYNC_DMA_READ(sc,
OHCI_CTX_ASYNC_TX_RESPONSE,
OHCI_SUBREG_ContextControlClear));
if (intmask & OHCI_Int_ARRS)
printf(" ARRS(0x%04x)",
OHCI_ASYNC_DMA_READ(sc,
OHCI_CTX_ASYNC_RX_RESPONSE,
OHCI_SUBREG_ContextControlClear));
if (intmask & OHCI_Int_ARRQ)
printf(" ARRQ(0x%04x)",
OHCI_ASYNC_DMA_READ(sc,
OHCI_CTX_ASYNC_RX_REQUEST,
OHCI_SUBREG_ContextControlClear));
if (intmask & OHCI_Int_IsochRx)
printf(" IsochRx(0x%08x)",
OHCI_CSR_READ(sc,
OHCI_REG_IsoRecvIntEventClear));
if (intmask & OHCI_Int_IsochTx)
printf(" IsochTx(0x%08x)",
OHCI_CSR_READ(sc,
OHCI_REG_IsoXmitIntEventClear));
if (intmask & OHCI_Int_RQPkt)
printf(" RQPkt(0x%04x)",
OHCI_ASYNC_DMA_READ(sc,
OHCI_CTX_ASYNC_RX_REQUEST,
OHCI_SUBREG_ContextControlClear));
if (intmask & OHCI_Int_RSPkt)
printf(" RSPkt(0x%04x)",
OHCI_ASYNC_DMA_READ(sc,
OHCI_CTX_ASYNC_RX_RESPONSE,
OHCI_SUBREG_ContextControlClear));
printf("\n");
}
#endif /* FW_DEBUG */
if (intmask & OHCI_Int_BusReset) {
/*
* According to OHCI spec 6.1.1 "busReset",
* All asynchronous transmit must be stopped before
* clearing BusReset. Moreover, the BusReset
* interrupt bit should not be cleared during the
* SelfID phase. Thus we turned off interrupt mask
* bit of BusReset instead until SelfID completion
* or SelfID timeout.
*/
OHCI_CSR_WRITE(sc, OHCI_REG_IntMaskClear,
OHCI_Int_BusReset);
intmask &= OHCI_Int_SelfIDComplete;
fwohci_buf_stop(sc);
fwohci_buf_init(sc);
if (sc->sc_uidtbl != NULL) {
free(sc->sc_uidtbl, M_DEVBUF);
sc->sc_uidtbl = NULL;
}
callout_reset(&sc->sc_selfid_callout,
OHCI_SELFID_TIMEOUT,
(void (*)(void *))fwohci_phy_busreset, sc);
sc->sc_nodeid = 0xffff; /* indicate invalid */
sc->sc_rootid = 0;
sc->sc_irmid = IEEE1394_BCAST_PHY_ID;
}
if (intmask & OHCI_Int_SelfIDComplete) {
OHCI_CSR_WRITE(sc, OHCI_REG_IntEventClear,
OHCI_Int_BusReset);
OHCI_CSR_WRITE(sc, OHCI_REG_IntMaskSet,
OHCI_Int_BusReset);
callout_stop(&sc->sc_selfid_callout);
if (fwohci_selfid_input(sc) == 0) {
fwohci_buf_start(sc);
fwohci_uid_collect(sc);
}
}
if (intmask & OHCI_Int_ReqTxComplete)
fwohci_at_done(sc, sc->sc_ctx_atrq, 0);
if (intmask & OHCI_Int_RespTxComplete)
fwohci_at_done(sc, sc->sc_ctx_atrs, 0);
if (intmask & OHCI_Int_RQPkt)
fwohci_arrq_input(sc, sc->sc_ctx_arrq);
if (intmask & OHCI_Int_RSPkt)
fwohci_arrs_input(sc, sc->sc_ctx_arrs);
if (intmask & OHCI_Int_IsochTx) {
iso = OHCI_CSR_READ(sc, OHCI_REG_IsoXmitIntEventClear);
OHCI_CSR_WRITE(sc, OHCI_REG_IsoXmitIntEventClear, iso);
}
if (intmask & OHCI_Int_IsochRx) {
iso = OHCI_CSR_READ(sc, OHCI_REG_IsoRecvIntEventClear);
OHCI_CSR_WRITE(sc, OHCI_REG_IsoRecvIntEventClear, iso);
for (i = 0; i < sc->sc_isoctx; i++) {
if ((iso & (1<<i)) && sc->sc_ctx_ir[i] != NULL)
fwohci_ir_input(sc, sc->sc_ctx_ir[i]);
}
}
if (!progress) {
sc->sc_intrcnt.ev_count++;
progress = 1;
}
}
}
#if 0
static int
fwohci_dnamem_alloc(struct fwohci_softc *sc, int size, int alignment,
bus_dmamap_t *mapp, caddr_t *kvap, int flags)
{
bus_dma_segment_t segs[1];
int error, nsegs, steps;
steps = 0;
error = bus_dmamem_alloc(sc->sc_dmat, size, alignment, alignment,
segs, 1, &nsegs, flags);
if (error)
goto cleanup;
steps = 1;
error = bus_dmamem_map(sc->sc_dmat, segs, nsegs, segs[0].ds_len,
kvap, flags);
if (error)
goto cleanup;
if (error == 0)
error = bus_dmamap_create(sc->sc_dmat, size, 1, alignment,
size, flags, mapp);
if (error)
goto cleanup;
if (error == 0)
error = bus_dmamap_load(sc->sc_dmat, *mapp, *kvap, size, NULL, flags);
if (error)
goto cleanup;
cleanup:
switch (steps) {
case 1:
bus_dmamem_free(sc->sc_dmat, segs, nsegs);
}
return error;
}
#endif
int
fwohci_print(void *aux, const char *pnp)
{
char *name = aux;
if (pnp)
printf("%s at %s", name, pnp);
return UNCONF;
}
static void
fwohci_hw_init(struct fwohci_softc *sc)
{
int i;
u_int32_t val;
/*
* Software Reset.
*/
OHCI_CSR_WRITE(sc, OHCI_REG_HCControlSet, OHCI_HCControl_SoftReset);
for (i = 0; i < OHCI_LOOP; i++) {
val = OHCI_CSR_READ(sc, OHCI_REG_HCControlClear);
if ((val & OHCI_HCControl_SoftReset) == 0)
break;
}
OHCI_CSR_WRITE(sc, OHCI_REG_HCControlSet, OHCI_HCControl_LPS);
/*
* First, initilize CSRs with undefined value to default settings.
*/
val = OHCI_CSR_READ(sc, OHCI_REG_BusOptions);
val |= OHCI_BusOptions_ISC | OHCI_BusOptions_CMC;
#if 0
val |= OHCI_BusOptions_BMC | OHCI_BusOptions_IRMC;
#else
val &= ~(OHCI_BusOptions_BMC | OHCI_BusOptions_IRMC);
#endif
OHCI_CSR_WRITE(sc, OHCI_REG_BusOptions, val);
for (i = 0; i < sc->sc_isoctx; i++) {
OHCI_SYNC_RX_DMA_WRITE(sc, i, OHCI_SUBREG_ContextControlClear,
~0);
}
OHCI_CSR_WRITE(sc, OHCI_REG_LinkControlClear, ~0);
fwohci_configrom_init(sc);
fwohci_selfid_init(sc);
fwohci_buf_init(sc);
fwohci_csr_init(sc);
/*
* Final CSR settings.
*/
OHCI_CSR_WRITE(sc, OHCI_REG_LinkControlSet,
OHCI_LinkControl_CycleTimerEnable |
OHCI_LinkControl_RcvSelfID | OHCI_LinkControl_RcvPhyPkt);
OHCI_CSR_WRITE(sc, OHCI_REG_ATRetries, 0x00000888); /*XXX*/
/* clear receive filter */
OHCI_CSR_WRITE(sc, OHCI_REG_IRMultiChanMaskHiClear, ~0);
OHCI_CSR_WRITE(sc, OHCI_REG_IRMultiChanMaskLoClear, ~0);
OHCI_CSR_WRITE(sc, OHCI_REG_AsynchronousRequestFilterHiSet, 0x80000000);
OHCI_CSR_WRITE(sc, OHCI_REG_HCControlClear,
OHCI_HCControl_NoByteSwapData | OHCI_HCControl_APhyEnhanceEnable);
OHCI_CSR_WRITE(sc, OHCI_REG_IntMaskClear, ~0);
OHCI_CSR_WRITE(sc, OHCI_REG_IntMaskSet, OHCI_Int_BusReset |
OHCI_Int_SelfIDComplete | OHCI_Int_IsochRx | OHCI_Int_IsochTx |
OHCI_Int_RSPkt | OHCI_Int_RQPkt | OHCI_Int_ARRS | OHCI_Int_ARRQ |
OHCI_Int_RespTxComplete | OHCI_Int_ReqTxComplete);
OHCI_CSR_WRITE(sc, OHCI_REG_IntMaskSet, OHCI_Int_CycleTooLong |
OHCI_Int_UnrecoverableError | OHCI_Int_CycleInconsistent |
OHCI_Int_LockRespErr | OHCI_Int_PostedWriteErr);
OHCI_CSR_WRITE(sc, OHCI_REG_IsoXmitIntMaskSet, ~0);
OHCI_CSR_WRITE(sc, OHCI_REG_IsoRecvIntMaskSet, ~0);
OHCI_CSR_WRITE(sc, OHCI_REG_IntMaskSet, OHCI_Int_MasterEnable);
OHCI_CSR_WRITE(sc, OHCI_REG_HCControlSet, OHCI_HCControl_LinkEnable);
/*
* Start the receivers
*/
fwohci_buf_start(sc);
}
static void
fwohci_power(int why, void *arg)
{
struct fwohci_softc *sc = arg;
int s;
s = splimp();
switch (why) {
case PWR_SUSPEND:
case PWR_STANDBY:
fwohci_shutdown(sc);
break;
case PWR_RESUME:
fwohci_hw_init(sc);
fwohci_phy_busreset(sc);
break;
case PWR_SOFTSUSPEND:
case PWR_SOFTSTANDBY:
case PWR_SOFTRESUME:
break;
}
splx(s);
}
static void
fwohci_shutdown(void *arg)
{
struct fwohci_softc *sc = arg;
u_int32_t val;
callout_stop(&sc->sc_selfid_callout);
/* disable all interrupt */
OHCI_CSR_WRITE(sc, OHCI_REG_IntMaskClear, OHCI_Int_MasterEnable);
fwohci_buf_stop(sc);
val = OHCI_CSR_READ(sc, OHCI_REG_BusOptions);
val &= ~(OHCI_BusOptions_BMC | OHCI_BusOptions_ISC |
OHCI_BusOptions_CMC | OHCI_BusOptions_IRMC);
OHCI_CSR_WRITE(sc, OHCI_REG_BusOptions, val);
fwohci_phy_busreset(sc);
OHCI_CSR_WRITE(sc, OHCI_REG_HCControlClear, OHCI_HCControl_LPS);
OHCI_CSR_WRITE(sc, OHCI_REG_HCControlSet, OHCI_HCControl_SoftReset);
}
/*
* COMMON FUNCTIONS
*/
/*
* read the PHY Register.
*/
static u_int8_t
fwohci_phy_read(struct fwohci_softc *sc, u_int8_t reg)
{
int i;
u_int32_t val;
OHCI_CSR_WRITE(sc, OHCI_REG_PhyControl,
OHCI_PhyControl_RdReg | (reg << OHCI_PhyControl_RegAddr_BITPOS));
for (i = 0; i < OHCI_LOOP; i++) {
if (OHCI_CSR_READ(sc, OHCI_REG_PhyControl) &
OHCI_PhyControl_RdDone)
break;
}
val = OHCI_CSR_READ(sc, OHCI_REG_PhyControl);
return (val & OHCI_PhyControl_RdData) >> OHCI_PhyControl_RdData_BITPOS;
}
/*
* write the PHY Register.
*/
static void
fwohci_phy_write(struct fwohci_softc *sc, u_int8_t reg, u_int8_t val)
{
int i;
OHCI_CSR_WRITE(sc, OHCI_REG_PhyControl, OHCI_PhyControl_WrReg |
(reg << OHCI_PhyControl_RegAddr_BITPOS) |
(val << OHCI_PhyControl_WrData_BITPOS));
for (i = 0; i < OHCI_LOOP; i++) {
if (!(OHCI_CSR_READ(sc, OHCI_REG_PhyControl) &
OHCI_PhyControl_WrReg))
break;
}
}
/*
* Initiate Bus Reset
*/
static void
fwohci_phy_busreset(struct fwohci_softc *sc)
{
int s;
u_int8_t val;
s = splimp();
OHCI_CSR_WRITE(sc, OHCI_REG_IntEventClear,
OHCI_Int_BusReset | OHCI_Int_SelfIDComplete);
OHCI_CSR_WRITE(sc, OHCI_REG_IntMaskSet, OHCI_Int_BusReset);
callout_stop(&sc->sc_selfid_callout);
val = fwohci_phy_read(sc, 1);
val = (val & 0x80) | /* preserve RHB (force root) */
0x40 | /* Initiate Bus Reset */
0x3f; /* default GAP count */
fwohci_phy_write(sc, 1, val);
splx(s);
}
/*
* PHY Packet
*/
static void
fwohci_phy_input(struct fwohci_softc *sc, struct fwohci_pkt *pkt)
{
u_int32_t val;
u_int8_t key, phyid;
val = pkt->fp_hdr[1];
if (val != ~pkt->fp_hdr[2]) {
if (val == 0 && ((*pkt->fp_trail & 0x001f0000) >> 16) ==
OHCI_CTXCTL_EVENT_BUS_RESET) {
#ifdef FW_DEBUG
if (fw_verbose)
printf("fwohci_phy_input: BusReset: 0x%08x\n",
pkt->fp_hdr[2]);
#endif
} else {
printf("%s: phy packet corrupted (0x%08x, 0x%08x)\n",
sc->sc_sc1394.sc1394_dev.dv_xname, val,
pkt->fp_hdr[2]);
}
return;
}
key = (val & 0xc0000000) >> 30;
phyid = (val & 0x3f000000) >> 24;
switch (key) {
case 0:
#ifdef FW_DEBUG
if (fw_verbose) {
printf("fwohci_phy_input: PHY Config from %d:", phyid);
if (val & 0x00800000)
printf(" ForceRoot");
if (val & 0x00400000)
printf(" Gap=%x", (val & 0x003f0000) >> 16);
printf("\n");
}
#endif
break;
case 1:
#ifdef FW_DEBUG
if (fw_verbose)
printf("fwohci_phy_input: Link-on from %d\n", phyid);
#endif
break;
case 2:
#ifdef FW_DEBUG
if (fw_verbose) {
printf("fwohci_phy_input: SelfID from %d:", phyid);
if (val & 0x00800000) {
printf(" #%d", (val & 0x00700000) >> 20);
} else {
if (val & 0x00400000)
printf(" LinkActive");
printf(" Gap=%x", (val & 0x003f0000) >> 16);
printf(" Spd=S%d",
100 << ((val & 0x0000c000) >> 14));
if (val & 0x00000800)
printf(" Cont");
if (val & 0x00000002)
printf(" InitiateBusReset");
}
if (val & 0x00000001)
printf(" +");
printf("\n");
}
#endif
break;
default:
printf("%s: unknown PHY packet: 0x%08x\n",
sc->sc_sc1394.sc1394_dev.dv_xname, val);
break;
}
}
/*
* Descriptor for context DMA.
*/
static int
fwohci_desc_alloc(struct fwohci_softc *sc)
{
int error, mapsize, dsize;
/*
* allocate descriptor buffer
*/
sc->sc_descsize = OHCI_BUF_ARRQ_CNT + OHCI_BUF_ARRS_CNT +
OHCI_BUF_ATRQ_CNT + OHCI_BUF_ATRS_CNT +
OHCI_BUF_IR_CNT * sc->sc_isoctx + 2;
dsize = sizeof(struct fwohci_desc) * sc->sc_descsize;
mapsize = howmany(sc->sc_descsize, NBBY);
sc->sc_descmap = malloc(mapsize, M_DEVBUF, M_WAITOK);
memset(sc->sc_descmap, 0, mapsize);
if ((error = bus_dmamem_alloc(sc->sc_dmat, dsize, PAGE_SIZE, 0,
&sc->sc_dseg, 1, &sc->sc_dnseg, 0)) != 0) {
printf("%s: unable to allocate descriptor buffer, error = %d\n",
sc->sc_sc1394.sc1394_dev.dv_xname, error);
goto fail_0;
}
if ((error = bus_dmamem_map(sc->sc_dmat, &sc->sc_dseg, sc->sc_dnseg,
dsize, (caddr_t *)&sc->sc_desc, BUS_DMA_COHERENT | BUS_DMA_WAITOK))
!= 0) {
printf("%s: unable to map descriptor buffer, error = %d\n",
sc->sc_sc1394.sc1394_dev.dv_xname, error);
goto fail_1;
}
if ((error = bus_dmamap_create(sc->sc_dmat, dsize, sc->sc_dnseg,
dsize, 0, BUS_DMA_WAITOK, &sc->sc_ddmamap)) != 0) {
printf("%s: unable to create descriptor buffer DMA map, "
"error = %d\n", sc->sc_sc1394.sc1394_dev.dv_xname, error);
goto fail_2;
}
if ((error = bus_dmamap_load(sc->sc_dmat, sc->sc_ddmamap, sc->sc_desc,
dsize, NULL, BUS_DMA_WAITOK)) != 0) {
printf("%s: unable to load descriptor buffer DMA map, "
"error = %d\n", sc->sc_sc1394.sc1394_dev.dv_xname, error);
goto fail_3;
}
return 0;
fail_3:
bus_dmamap_destroy(sc->sc_dmat, sc->sc_ddmamap);
fail_2:
bus_dmamem_unmap(sc->sc_dmat, (caddr_t)sc->sc_desc, dsize);
fail_1:
bus_dmamem_free(sc->sc_dmat, &sc->sc_dseg, sc->sc_dnseg);
fail_0:
return error;
}
static struct fwohci_desc *
fwohci_desc_get(struct fwohci_softc *sc, int ndesc)
{
int i, n;
for (n = 0; n <= sc->sc_descsize - ndesc; n++) {
for (i = 0; ; i++) {
if (i == ndesc) {
for (i = 0; i < ndesc; i++)
setbit(sc->sc_descmap, n + i);
return sc->sc_desc + n;
}
if (isset(sc->sc_descmap, n + i))
break;
}
}
return NULL;
}
static void
fwohci_desc_put(struct fwohci_softc *sc, struct fwohci_desc *fd, int ndesc)
{
int i, n;
n = fd - sc->sc_desc;
for (i = 0; i < ndesc; i++, n++) {
#ifdef DIAGNOSTICS
if (isclr(sc->sc_descmap, n))
panic("fwohci_desc_put: duplicated free");
#endif
clrbit(sc->sc_descmap, n);
}
}
/*
* Asyncronous/Isochronous Transmit/Receive Context
*/
static int
fwohci_ctx_alloc(struct fwohci_softc *sc, struct fwohci_ctx **fcp,
int bufcnt, int ctx)
{
int i, error;
struct fwohci_ctx *fc;
struct fwohci_buf *fb;
struct fwohci_desc *fd;
fc = malloc(sizeof(*fc) + sizeof(*fb) * bufcnt, M_DEVBUF, M_WAITOK);
memset(fc, 0, sizeof(*fc) + sizeof(*fb) * bufcnt);
LIST_INIT(&fc->fc_handler);
TAILQ_INIT(&fc->fc_buf);
fc->fc_ctx = ctx;
fc->fc_bufcnt = bufcnt;
fb = (struct fwohci_buf *)&fc[1];
for (i = 0; i < bufcnt; i++, fb++) {
if ((error = fwohci_buf_alloc(sc, fb)) != 0)
goto fail;
if ((fd = fwohci_desc_get(sc, 1)) == NULL) {
error = ENOBUFS;
goto fail;
}
fb->fb_desc = fd;
fb->fb_daddr = sc->sc_ddmamap->dm_segs[0].ds_addr +
((caddr_t)fd - (caddr_t)sc->sc_desc);
fd->fd_flags = OHCI_DESC_INPUT | OHCI_DESC_STATUS |
OHCI_DESC_INTR_ALWAYS | OHCI_DESC_BRANCH;
fd->fd_reqcount = fb->fb_dmamap->dm_segs[0].ds_len;
fd->fd_data = fb->fb_dmamap->dm_segs[0].ds_addr;
TAILQ_INSERT_TAIL(&fc->fc_buf, fb, fb_list);
}
*fcp = fc;
return 0;
fail:
while (i-- > 0)
fwohci_buf_free(sc, --fb);
free(fc, M_DEVBUF);
return error;
}
static void
fwohci_ctx_free(struct fwohci_softc *sc, struct fwohci_ctx *fc)
{
struct fwohci_buf *fb;
struct fwohci_handler *fh;
while ((fh = LIST_FIRST(&fc->fc_handler)) != NULL)
fwohci_handler_set(sc, fh->fh_tcode, fh->fh_key1, fh->fh_key2,
NULL, NULL);
while ((fb = TAILQ_FIRST(&fc->fc_buf)) != NULL) {
TAILQ_REMOVE(&fc->fc_buf, fb, fb_list);
fwohci_buf_free(sc, fb);
}
free(fc, M_DEVBUF);
}
static void
fwohci_ctx_init(struct fwohci_softc *sc, struct fwohci_ctx *fc)
{
struct fwohci_buf *fb, *nfb;
struct fwohci_desc *fd;
int n;
for (fb = TAILQ_FIRST(&fc->fc_buf); fb != NULL; fb = nfb) {
nfb = TAILQ_NEXT(fb, fb_list);
fb->fb_off = 0;
fd = fb->fb_desc;
fd->fd_branch = (nfb != NULL) ? (nfb->fb_daddr | 1) : 0;
fd->fd_rescount = fd->fd_reqcount;
}
n = fc->fc_ctx;
fb = TAILQ_FIRST(&fc->fc_buf);
if (fc->fc_isoch) {
OHCI_SYNC_RX_DMA_WRITE(sc, n, OHCI_SUBREG_CommandPtr,
fb->fb_daddr | 1);
OHCI_SYNC_RX_DMA_WRITE(sc, n, OHCI_SUBREG_ContextControlClear,
OHCI_CTXCTL_RX_BUFFER_FILL |
OHCI_CTXCTL_RX_CYCLE_MATCH_ENABLE |
OHCI_CTXCTL_RX_MULTI_CHAN_MODE |
OHCI_CTXCTL_RX_DUAL_BUFFER_MODE);
OHCI_SYNC_RX_DMA_WRITE(sc, n, OHCI_SUBREG_ContextControlSet,
OHCI_CTXCTL_RX_ISOCH_HEADER);
} else {
OHCI_ASYNC_DMA_WRITE(sc, n, OHCI_SUBREG_CommandPtr,
fb->fb_daddr | 1);
}
}
/*
* DMA data buffer
*/
static int
fwohci_buf_alloc(struct fwohci_softc *sc, struct fwohci_buf *fb)
{
int error;
if ((error = bus_dmamem_alloc(sc->sc_dmat, PAGE_SIZE, PAGE_SIZE,
PAGE_SIZE, &fb->fb_seg, 1, &fb->fb_nseg, BUS_DMA_WAITOK)) != 0) {
printf("%s: unable to allocate buffer, error = %d\n",
sc->sc_sc1394.sc1394_dev.dv_xname, error);
goto fail_0;
}
if ((error = bus_dmamem_map(sc->sc_dmat, &fb->fb_seg,
fb->fb_nseg, PAGE_SIZE, &fb->fb_buf, BUS_DMA_WAITOK)) != 0) {
printf("%s: unable to map buffer, error = %d\n",
sc->sc_sc1394.sc1394_dev.dv_xname, error);
goto fail_1;
}
if ((error = bus_dmamap_create(sc->sc_dmat, PAGE_SIZE, fb->fb_nseg,
PAGE_SIZE, 0, BUS_DMA_WAITOK, &fb->fb_dmamap)) != 0) {
printf("%s: unable to create buffer DMA map, "
"error = %d\n", sc->sc_sc1394.sc1394_dev.dv_xname,
error);
goto fail_2;
}
if ((error = bus_dmamap_load(sc->sc_dmat, fb->fb_dmamap,
fb->fb_buf, PAGE_SIZE, NULL, BUS_DMA_WAITOK)) != 0) {
printf("%s: unable to load buffer DMA map, "
"error = %d\n", sc->sc_sc1394.sc1394_dev.dv_xname,
error);
goto fail_3;
}
return 0;
bus_dmamap_unload(sc->sc_dmat, fb->fb_dmamap);
fail_3:
bus_dmamap_destroy(sc->sc_dmat, fb->fb_dmamap);
fail_2:
bus_dmamem_unmap(sc->sc_dmat, fb->fb_buf, PAGE_SIZE);
fail_1:
bus_dmamem_free(sc->sc_dmat, &fb->fb_seg, fb->fb_nseg);
fail_0:
return error;
}
static void
fwohci_buf_free(struct fwohci_softc *sc, struct fwohci_buf *fb)
{
bus_dmamap_unload(sc->sc_dmat, fb->fb_dmamap);
bus_dmamap_destroy(sc->sc_dmat, fb->fb_dmamap);
bus_dmamem_unmap(sc->sc_dmat, fb->fb_buf, PAGE_SIZE);
bus_dmamem_free(sc->sc_dmat, &fb->fb_seg, fb->fb_nseg);
}
static void
fwohci_buf_init(struct fwohci_softc *sc)
{
int i;
/*
* Initialize for Asynchronous Transmit Queue.
*/
fwohci_at_done(sc, sc->sc_ctx_atrq, 1);
fwohci_at_done(sc, sc->sc_ctx_atrs, 1);
/*
* Initialize for Asynchronous Receive Queue.
*/
fwohci_ctx_init(sc, sc->sc_ctx_arrq);
fwohci_ctx_init(sc, sc->sc_ctx_arrs);
/*
* Initialize for Isochronous Receive Queue.
*/
for (i = 0; i < sc->sc_isoctx; i++) {
if (sc->sc_ctx_ir[i] != NULL)
fwohci_ctx_init(sc, sc->sc_ctx_ir[i]);
}
}
static void
fwohci_buf_start(struct fwohci_softc *sc)
{
int i;
OHCI_ASYNC_DMA_WRITE(sc, OHCI_CTX_ASYNC_RX_REQUEST,
OHCI_SUBREG_ContextControlSet, OHCI_CTXCTL_RUN);
OHCI_ASYNC_DMA_WRITE(sc, OHCI_CTX_ASYNC_RX_RESPONSE,
OHCI_SUBREG_ContextControlSet, OHCI_CTXCTL_RUN);
for (i = 0; i < sc->sc_isoctx; i++) {
if (sc->sc_ctx_ir[i] != NULL &&
LIST_FIRST(&sc->sc_ctx_ir[i]->fc_handler) != NULL) {
OHCI_SYNC_RX_DMA_WRITE(sc, i,
OHCI_SUBREG_ContextControlSet, OHCI_CTXCTL_RUN);
}
}
}
static void
fwohci_buf_stop(struct fwohci_softc *sc)
{
int i, j;
OHCI_ASYNC_DMA_WRITE(sc, OHCI_CTX_ASYNC_TX_REQUEST,
OHCI_SUBREG_ContextControlClear, OHCI_CTXCTL_RUN);
OHCI_ASYNC_DMA_WRITE(sc, OHCI_CTX_ASYNC_TX_RESPONSE,
OHCI_SUBREG_ContextControlClear, OHCI_CTXCTL_RUN);
OHCI_ASYNC_DMA_WRITE(sc, OHCI_CTX_ASYNC_RX_REQUEST,
OHCI_SUBREG_ContextControlClear, OHCI_CTXCTL_RUN);
OHCI_ASYNC_DMA_WRITE(sc, OHCI_CTX_ASYNC_RX_RESPONSE,
OHCI_SUBREG_ContextControlClear, OHCI_CTXCTL_RUN);
for (i = 0; i < sc->sc_isoctx; i++) {
OHCI_SYNC_RX_DMA_WRITE(sc, i,
OHCI_SUBREG_ContextControlClear, OHCI_CTXCTL_RUN);
}
/*
* Make sure the transmitter is stopped.
*/
for (j = 0; j < OHCI_LOOP; j++) {
if (OHCI_ASYNC_DMA_READ(sc, OHCI_CTX_ASYNC_TX_REQUEST,
OHCI_SUBREG_ContextControlClear) & OHCI_CTXCTL_ACTIVE)
continue;
if (OHCI_ASYNC_DMA_READ(sc, OHCI_CTX_ASYNC_TX_RESPONSE,
OHCI_SUBREG_ContextControlClear) & OHCI_CTXCTL_ACTIVE)
continue;
break;
}
}
static void
fwohci_buf_next(struct fwohci_softc *sc, struct fwohci_ctx *fc)
{
struct fwohci_buf *fb, *tfb;
while ((fb = TAILQ_FIRST(&fc->fc_buf)) != NULL) {
if (fb->fb_off != fb->fb_desc->fd_reqcount ||
fb->fb_desc->fd_rescount != 0)
break;
TAILQ_REMOVE(&fc->fc_buf, fb, fb_list);
fb->fb_desc->fd_rescount = fb->fb_desc->fd_reqcount;
fb->fb_off = 0;
fb->fb_desc->fd_branch = 0;
tfb = TAILQ_LAST(&fc->fc_buf, fwohci_buf_s);
tfb->fb_desc->fd_branch = fb->fb_daddr | 1;
TAILQ_INSERT_TAIL(&fc->fc_buf, fb, fb_list);
}
}
static int
fwohci_buf_pktget(struct fwohci_softc *sc, struct fwohci_ctx *fc, caddr_t *pp,
int len)
{
struct fwohci_buf *fb;
struct fwohci_desc *fd;
int bufend;
fb = TAILQ_FIRST(&fc->fc_buf);
again:
fd = fb->fb_desc;
#ifdef FW_DEBUG
if (fw_verbose)
printf("fwohci_buf_pktget: desc %ld, off %d, req %d, res %d,"
" len %d, avail %d\n",
(long)(fd - sc->sc_desc), fb->fb_off, fd->fd_reqcount,
fd->fd_rescount, len,
fd->fd_reqcount - fd->fd_rescount - fb->fb_off);
#endif
bufend = fd->fd_reqcount - fd->fd_rescount;
if (fb->fb_off >= bufend) {
if (fc->fc_isoch && fb->fb_off > 0) {
fb->fb_off = fd->fd_reqcount;
fd->fd_rescount = 0;
}
if (fd->fd_rescount == 0) {
if ((fb = TAILQ_NEXT(fb, fb_list)) != NULL)
goto again;
}
return 0;
}
if (fb->fb_off + len > bufend)
len = bufend - fb->fb_off;
bus_dmamap_sync(sc->sc_dmat, fb->fb_dmamap, fb->fb_off, len,
BUS_DMASYNC_POSTREAD);
*pp = fb->fb_buf + fb->fb_off;
fb->fb_off += roundup(len, 4);
return len;
}
static int
fwohci_buf_input(struct fwohci_softc *sc, struct fwohci_ctx *fc,
struct fwohci_pkt *pkt)
{
caddr_t p;
int len, count, i;
memset(pkt, 0, sizeof(*pkt));
pkt->fp_uio.uio_iov = pkt->fp_iov;
pkt->fp_uio.uio_rw = UIO_WRITE;
pkt->fp_uio.uio_segflg = UIO_SYSSPACE;
/* get first quadlet */
count = 4;
if (fc->fc_isoch) {
/*
* get trailer first, may be bogus data unless status update
* in descriptor is set.
*/
len = fwohci_buf_pktget(sc, fc, (caddr_t *)&pkt->fp_trail,
sizeof(*pkt->fp_trail));
if (len <= 0) {
#ifdef FW_DEBUG
if (fw_verbose)
printf("fwohci_buf_input: no input for is#%d\n",
fc->fc_ctx);
#endif
return 0;
}
*pkt->fp_trail = (*pkt->fp_trail & 0xffff) |
(TAILQ_FIRST(&fc->fc_buf)->fb_desc->fd_status << 16);
}
len = fwohci_buf_pktget(sc, fc, &p, count);
if (len <= 0) {
#ifdef FW_DEBUG
if (fw_verbose)
printf("fwohci_buf_input: no input for %d\n",
fc->fc_ctx);
#endif
return 0;
}
pkt->fp_hdr[0] = *(u_int32_t *)p;
pkt->fp_tcode = (pkt->fp_hdr[0] & 0x000000f0) >> 4;
switch (pkt->fp_tcode) {
case IEEE1394_TCODE_WRITE_REQ_QUAD:
case IEEE1394_TCODE_READ_RESP_QUAD:
pkt->fp_hlen = 12;
pkt->fp_dlen = 4;
break;
case IEEE1394_TCODE_WRITE_REQ_BLOCK:
case IEEE1394_TCODE_READ_RESP_BLOCK:
case IEEE1394_TCODE_LOCK_REQ:
case IEEE1394_TCODE_LOCK_RESP:
pkt->fp_hlen = 16;
break;
case IEEE1394_TCODE_STREAM_DATA:
pkt->fp_hlen = 4;
pkt->fp_dlen = pkt->fp_hdr[0] >> 16;
break;
default:
pkt->fp_hlen = 12;
pkt->fp_dlen = 0;
break;
}
/* get header */
while (count < pkt->fp_hlen) {
len = fwohci_buf_pktget(sc, fc, &p, pkt->fp_hlen - count);
if (len == 0) {
printf("fwohci_buf_input: malformed input 1: %d\n",
pkt->fp_hlen - count);
return 0;
}
memcpy((caddr_t)pkt->fp_hdr + count, p, len);
count += len;
}
if (pkt->fp_hlen == 16)
pkt->fp_dlen = pkt->fp_hdr[3] >> 16;
#ifdef FW_DEBUG
if (fw_verbose)
printf("fwohci_buf_input: tcode=0x%x, hlen=%d, dlen=%d\n",
pkt->fp_tcode, pkt->fp_hlen, pkt->fp_dlen);
#endif
/* get data */
count = 0;
i = 0;
while (count < pkt->fp_dlen) {
len = fwohci_buf_pktget(sc, fc,
(caddr_t *)&pkt->fp_iov[i].iov_base,
pkt->fp_dlen - count);
if (len == 0) {
printf("fwohci_buf_input: malformed input 2: %d\n",
pkt->fp_hlen - count);
return 0;
}
pkt->fp_iov[i++].iov_len = len;
count += len;
}
pkt->fp_uio.uio_iovcnt = i;
pkt->fp_uio.uio_resid = count;
if (!fc->fc_isoch) {
/* get trailer */
len = fwohci_buf_pktget(sc, fc, (caddr_t *)&pkt->fp_trail,
sizeof(*pkt->fp_trail));
if (len <= 0) {
printf("fwohci_buf_input: malformed input 3: %d\n",
pkt->fp_hlen - count);
return 0;
}
}
return 1;
}
static int
fwohci_handler_set(struct fwohci_softc *sc,
int tcode, u_int32_t key1, u_int32_t key2,
int (*handler)(struct fwohci_softc *, void *, struct fwohci_pkt *),
void *arg)
{
struct fwohci_ctx *fc;
struct fwohci_handler *fh;
int i, j;
if (tcode == IEEE1394_TCODE_STREAM_DATA) {
j = sc->sc_isoctx;
fh = NULL;
for (i = 0; i < sc->sc_isoctx; i++) {
if ((fc = sc->sc_ctx_ir[i]) == NULL) {
if (j == sc->sc_isoctx)
j = i;
continue;
}
fh = LIST_FIRST(&fc->fc_handler);
if (fh == NULL) {
j = i;
break;
}
if (fh->fh_tcode == tcode &&
fh->fh_key1 == key1 && fh->fh_key2 == key2)
break;
fh = NULL;
}
if (fh == NULL) {
if (handler == NULL)
return 0;
if (j == sc->sc_isoctx) {
#ifdef FW_DEBUG
if (fw_verbose)
printf("fwohci_handler_set: "
"no more free context\n");
#endif
return ENOMEM;
}
if ((fc = sc->sc_ctx_ir[j]) == NULL) {
fwohci_ctx_alloc(sc, &fc, OHCI_BUF_IR_CNT, j);
fc->fc_isoch = 1;
sc->sc_ctx_ir[j] = fc;
}
}
} else {
switch (tcode) {
case IEEE1394_TCODE_WRITE_REQ_QUAD:
case IEEE1394_TCODE_WRITE_REQ_BLOCK:
case IEEE1394_TCODE_READ_REQ_QUAD:
case IEEE1394_TCODE_READ_REQ_BLOCK:
case IEEE1394_TCODE_LOCK_REQ:
fc = sc->sc_ctx_arrq;
break;
case IEEE1394_TCODE_WRITE_RESP:
case IEEE1394_TCODE_READ_RESP_QUAD:
case IEEE1394_TCODE_READ_RESP_BLOCK:
case IEEE1394_TCODE_LOCK_RESP:
fc = sc->sc_ctx_arrs;
break;
default:
return EIO;
}
for (fh = LIST_FIRST(&fc->fc_handler); fh != NULL;
fh = LIST_NEXT(fh, fh_list)) {
if (fh->fh_tcode == tcode &&
fh->fh_key1 == key1 && fh->fh_key2 == key2)
break;
}
}
if (handler == NULL) {
if (fh != NULL) {
LIST_REMOVE(fh, fh_list);
free(fh, M_DEVBUF);
}
if (tcode == IEEE1394_TCODE_STREAM_DATA) {
sc->sc_ctx_ir[fc->fc_ctx] = NULL;
fwohci_ctx_free(sc, fc);
}
return 0;
}
if (fh == NULL) {
fh = malloc(sizeof(*fh), M_DEVBUF, M_NOWAIT);
if (fh == NULL)
return ENOMEM;
LIST_INSERT_HEAD(&fc->fc_handler, fh, fh_list);
}
fh->fh_tcode = tcode;
fh->fh_key1 = key1;
fh->fh_key2 = key2;
fh->fh_handler = handler;
fh->fh_handarg = arg;
#ifdef FW_DEBUG
if (fw_verbose)
printf("fwohci_handler_set: ctx %d, tcode %x, key 0x%x, 0x%x\n",
fc->fc_ctx, tcode, key1, key2);
#endif
if (tcode == IEEE1394_TCODE_STREAM_DATA) {
fwohci_ctx_init(sc, fc);
#ifdef FW_DEBUG
if (fw_verbose)
printf("fwohci_handler_set: SYNC desc %ld\n",
(long)(TAILQ_FIRST(&fc->fc_buf)->fb_desc -
sc->sc_desc));
#endif
OHCI_SYNC_RX_DMA_WRITE(sc, fc->fc_ctx, OHCI_SUBREG_ContextMatch,
(OHCI_CTXMATCH_TAG0 << key2) | key1);
OHCI_SYNC_RX_DMA_WRITE(sc, fc->fc_ctx,
OHCI_SUBREG_ContextControlSet, OHCI_CTXCTL_RUN);
}
return 0;
}
/*
* Asyncronous Receive Requests input frontend.
*/
static void
fwohci_arrq_input(struct fwohci_softc *sc, struct fwohci_ctx *fc)
{
int rcode;
u_int32_t key1, key2;
struct fwohci_handler *fh;
struct fwohci_pkt pkt, res;
while (fwohci_buf_input(sc, fc, &pkt)) {
if (pkt.fp_tcode == OHCI_TCODE_PHY) {
fwohci_phy_input(sc, &pkt);
continue;
}
key1 = pkt.fp_hdr[1] & 0xffff;
key2 = pkt.fp_hdr[2];
memset(&res, 0, sizeof(res));
res.fp_uio.uio_rw = UIO_WRITE;
res.fp_uio.uio_segflg = UIO_SYSSPACE;
for (fh = LIST_FIRST(&fc->fc_handler); fh != NULL;
fh = LIST_NEXT(fh, fh_list)) {
if (pkt.fp_tcode == fh->fh_tcode &&
key1 == fh->fh_key1 &&
key2 == fh->fh_key2) {
rcode = (*fh->fh_handler)(sc, fh->fh_handarg,
&pkt);
break;
}
}
if (fh == NULL) {
rcode = IEEE1394_RCODE_ADDRESS_ERROR;
#ifdef FW_DEBUG
if (fw_verbose)
printf("fwohci_arrq_input: no listener:"
" tcode 0x%x, addr=0x%04x %08x\n",
pkt.fp_tcode, key1, key2);
#endif
}
if (((*pkt.fp_trail & 0x001f0000) >> 16) !=
OHCI_CTXCTL_EVENT_ACK_PENDING)
continue;
if (rcode != -1)
fwohci_atrs_output(sc, rcode, &pkt, &res);
}
fwohci_buf_next(sc, fc);
OHCI_ASYNC_DMA_WRITE(sc, fc->fc_ctx,
OHCI_SUBREG_ContextControlSet, OHCI_CTXCTL_WAKE);
}
/*
* Asynchronous Receive Response input frontend.
*/
static void
fwohci_arrs_input(struct fwohci_softc *sc, struct fwohci_ctx *fc)
{
struct fwohci_pkt pkt;
struct fwohci_handler *fh;
u_int16_t srcid;
int rcode, tlabel;
while (fwohci_buf_input(sc, fc, &pkt)) {
srcid = pkt.fp_hdr[1] >> 16;
rcode = (pkt.fp_hdr[1] & 0x0000f000) >> 12;
tlabel = (pkt.fp_hdr[0] & 0x0000fc00) >> 10;
#ifdef FW_DEBUG
if (fw_verbose)
printf("fwohci_arrs_input: tcode 0x%x, from 0x%04x,"
" tlabel 0x%x, rcode 0x%x, hlen %d, dlen %d\n",
pkt.fp_tcode, srcid, tlabel, rcode, pkt.fp_hlen,
pkt.fp_dlen);
#endif
for (fh = LIST_FIRST(&fc->fc_handler); fh != NULL;
fh = LIST_NEXT(fh, fh_list)) {
if (pkt.fp_tcode == fh->fh_tcode &&
(srcid & OHCI_NodeId_NodeNumber) == fh->fh_key1 &&
tlabel == fh->fh_key2) {
(*fh->fh_handler)(sc, fh->fh_handarg, &pkt);
LIST_REMOVE(fh, fh_list);
free(fh, M_DEVBUF);
break;
}
}
#ifdef FW_DEBUG
if (fw_verbose)
if (fh == NULL)
printf("fwohci_arrs_input: no lister\n");
#endif
}
fwohci_buf_next(sc, fc);
OHCI_ASYNC_DMA_WRITE(sc, fc->fc_ctx,
OHCI_SUBREG_ContextControlSet, OHCI_CTXCTL_WAKE);
}
/*
* Isochronous Receive input frontend.
*/
static void
fwohci_ir_input(struct fwohci_softc *sc, struct fwohci_ctx *fc)
{
int rcode, chan, tag;
struct iovec *iov;
struct fwohci_handler *fh;
struct fwohci_pkt pkt;
while (fwohci_buf_input(sc, fc, &pkt)) {
chan = (pkt.fp_hdr[0] & 0x00003f00) >> 8;
tag = (pkt.fp_hdr[0] & 0x0000c000) >> 14;
#ifdef FW_DEBUG
if (fw_verbose)
printf("fwohci_ir_input: hdr 0x%08x, tcode %d,"
" hlen %d, dlen %d\n", pkt.fp_hdr[0],
pkt.fp_tcode, pkt.fp_hlen, pkt.fp_dlen);
#endif
if (tag == IEEE1394_TAG_GASP) {
/*
* The pkt with tag=3 is GASP format.
* Move GASP header to header part.
*/
if (pkt.fp_dlen < 8)
continue;
iov = pkt.fp_iov;
/* assuming pkt per buffer mode */
pkt.fp_hdr[1] = ntohl(((u_int32_t *)iov->iov_base)[0]);
pkt.fp_hdr[2] = ntohl(((u_int32_t *)iov->iov_base)[1]);
iov->iov_base = (caddr_t)iov->iov_base + 8;
iov->iov_len -= 8;
pkt.fp_hlen += 8;
pkt.fp_dlen -= 8;
}
for (fh = LIST_FIRST(&fc->fc_handler); fh != NULL;
fh = LIST_NEXT(fh, fh_list)) {
if (pkt.fp_tcode == fh->fh_tcode &&
chan == fh->fh_key1 && tag == fh->fh_key2) {
rcode = (*fh->fh_handler)(sc, fh->fh_handarg,
&pkt);
break;
}
}
#ifdef FW_DEBUG
if (fw_verbose) {
if (fh == NULL)
printf("fwohci_ir_input: no handler\n");
else
printf("fwohci_ir_input: rcode %d\n", rcode);
}
#endif
}
fwohci_buf_next(sc, fc);
OHCI_SYNC_RX_DMA_WRITE(sc, fc->fc_ctx, OHCI_SUBREG_ContextControlSet,
OHCI_CTXCTL_WAKE);
}
/*
* Asynchronous Transmit common routine.
*/
static int
fwohci_at_output(struct fwohci_softc *sc, struct fwohci_ctx *fc,
struct fwohci_pkt *pkt)
{
struct fwohci_buf *fb;
struct fwohci_desc *fd;
struct mbuf *m, *m0;
int i, ndesc, error, off, len;
u_int32_t val;
if ((sc->sc_nodeid & OHCI_NodeId_NodeNumber) > sc->sc_rootid) {
/* We can't send anything during selfid duration */
return EAGAIN;
}
#ifdef FW_DEBUG
if (fw_verbose) {
struct iovec *iov;
printf("fwohci_at_output: tcode 0x%x, hlen %d, dlen %d",
pkt->fp_tcode, pkt->fp_hlen, pkt->fp_dlen);
if (fw_dump) {
for (i = 0; i < pkt->fp_hlen/4; i++)
printf("%s%08x", i?" ":"\n\t", pkt->fp_hdr[i]);
printf("$");
for (ndesc = 0, iov = pkt->fp_iov;
ndesc < pkt->fp_uio.uio_iovcnt; ndesc++, iov++) {
for (i = 0; i < iov->iov_len; i++)
printf("%s%02x",
(i%32)?((i%4)?"":" "):"\n\t",
((u_int8_t *)iov->iov_base)[i]);
printf("$");
}
}
printf("\n");
}
#endif
if ((m = pkt->fp_m) != NULL) {
for (ndesc = 2; m != NULL; m = m->m_next)
ndesc++;
if (ndesc > OHCI_DESC_MAX) {
m0 = NULL;
ndesc = 2;
for (off = 0; off < pkt->fp_dlen; off += len) {
if (m0 == NULL) {
MGETHDR(m0, M_DONTWAIT, MT_DATA);
if (m0 != NULL)
M_COPY_PKTHDR(m0, pkt->fp_m);
m = m0;
} else {
MGET(m->m_next, M_DONTWAIT, MT_DATA);
m = m->m_next;
}
if (m != NULL)
MCLGET(m, M_DONTWAIT);
if (m == NULL || (m->m_flags & M_EXT) == 0) {
m_freem(m0);
return ENOMEM;
}
len = pkt->fp_dlen - off;
if (len > m->m_ext.ext_size)
len = m->m_ext.ext_size;
m_copydata(pkt->fp_m, off, len,
mtod(m, caddr_t));
ndesc++;
}
m_freem(pkt->fp_m);
pkt->fp_m = m0;
}
} else
ndesc = 2 + pkt->fp_uio.uio_iovcnt;
if (ndesc > OHCI_DESC_MAX)
return ENOBUFS;
if (fc->fc_bufcnt > 50) /*XXX*/
return ENOBUFS;
if ((fb = malloc(sizeof(*fb), M_DEVBUF, M_NOWAIT)) == NULL)
return ENOBUFS;
fb->fb_nseg = ndesc;
fb->fb_desc = fwohci_desc_get(sc, ndesc);
if (fb->fb_desc == NULL) {
free(fb, M_DEVBUF);
return ENOBUFS;
}
fb->fb_daddr = sc->sc_ddmamap->dm_segs[0].ds_addr +
((caddr_t)fb->fb_desc - (caddr_t)sc->sc_desc);
fb->fb_m = pkt->fp_m;
fb->fb_callback = pkt->fp_callback;
if (ndesc > 2) {
if ((error = bus_dmamap_create(sc->sc_dmat, pkt->fp_dlen, ndesc,
PAGE_SIZE, 0, BUS_DMA_NOWAIT, &fb->fb_dmamap)) != 0) {
fwohci_desc_put(sc, fb->fb_desc, ndesc);
free(fb, M_DEVBUF);
return error;
}
if (pkt->fp_m != NULL)
error = bus_dmamap_load_mbuf(sc->sc_dmat, fb->fb_dmamap,
pkt->fp_m, BUS_DMA_NOWAIT);
else
error = bus_dmamap_load_uio(sc->sc_dmat, fb->fb_dmamap,
&pkt->fp_uio, BUS_DMA_NOWAIT);
if (error != 0) {
bus_dmamap_destroy(sc->sc_dmat, fb->fb_dmamap);
fwohci_desc_put(sc, fb->fb_desc, ndesc);
free(fb, M_DEVBUF);
return error;
}
bus_dmamap_sync(sc->sc_dmat, fb->fb_dmamap, 0, pkt->fp_dlen,
BUS_DMASYNC_PREWRITE);
}
fd = fb->fb_desc;
fd->fd_flags = OHCI_DESC_IMMED;
fd->fd_reqcount = pkt->fp_hlen;
fd->fd_data = 0;
fd->fd_branch = 0;
fd->fd_status = 0;
if (fc->fc_ctx == OHCI_CTX_ASYNC_TX_RESPONSE) {
i = 3; /* XXX: 3 sec */
val = OHCI_CSR_READ(sc, OHCI_REG_IsochronousCycleTimer);
fd->fd_timestamp = ((val >> 12) & 0x1fff) |
((((val >> 25) + i) & 0x7) << 13);
} else
fd->fd_timestamp = 0;
memcpy(fd + 1, pkt->fp_hdr, pkt->fp_hlen);
for (i = 0; i < ndesc - 2; i++) {
fd = fb->fb_desc + 2 + i;
fd->fd_flags = 0;
fd->fd_reqcount = fb->fb_dmamap->dm_segs[i].ds_len;
fd->fd_data = fb->fb_dmamap->dm_segs[i].ds_addr;
fd->fd_branch = 0;
fd->fd_status = 0;
fd->fd_timestamp = 0;
}
fd->fd_flags |= OHCI_DESC_LAST | OHCI_DESC_BRANCH;
fd->fd_flags |= OHCI_DESC_INTR_ALWAYS;
#ifdef FW_DEBUG
if (fw_verbose) {
printf("fwohci_at_output: desc %ld",
(long)(fb->fb_desc - sc->sc_desc));
for (i = 0; i < ndesc * 4; i++)
printf("%s%08x", i&7?" ":"\n\t",
((u_int32_t *)fb->fb_desc)[i]);
printf("\n");
}
#endif
val = OHCI_ASYNC_DMA_READ(sc, fc->fc_ctx,
OHCI_SUBREG_ContextControlClear);
if (val & OHCI_CTXCTL_RUN) {
if (fc->fc_branch == NULL) {
OHCI_ASYNC_DMA_WRITE(sc, fc->fc_ctx,
OHCI_SUBREG_ContextControlClear, OHCI_CTXCTL_RUN);
goto run;
}
*fc->fc_branch = fb->fb_daddr | ndesc;
OHCI_ASYNC_DMA_WRITE(sc, fc->fc_ctx,
OHCI_SUBREG_ContextControlSet, OHCI_CTXCTL_WAKE);
} else {
run:
OHCI_ASYNC_DMA_WRITE(sc, fc->fc_ctx,
OHCI_SUBREG_CommandPtr, fb->fb_daddr | ndesc);
OHCI_ASYNC_DMA_WRITE(sc, fc->fc_ctx,
OHCI_SUBREG_ContextControlSet, OHCI_CTXCTL_RUN);
}
fc->fc_branch = &fd->fd_branch;
fc->fc_bufcnt++;
TAILQ_INSERT_TAIL(&fc->fc_buf, fb, fb_list);
return 0;
}
static void
fwohci_at_done(struct fwohci_softc *sc, struct fwohci_ctx *fc, int force)
{
struct fwohci_buf *fb;
struct fwohci_desc *fd;
int i;
while ((fb = TAILQ_FIRST(&fc->fc_buf)) != NULL) {
fd = fb->fb_desc;
#ifdef FW_DEBUG
if (fw_verbose) {
printf("fwohci_at_done: %sdesc %ld (%d)",
force ? "force " : "",
(long)(fd - sc->sc_desc), fb->fb_nseg);
for (i = 0; i < fb->fb_nseg * 4; i++)
printf("%s%08x", i&7?" ":"\n ",
((u_int32_t *)fd)[i]);
printf("\n");
}
#endif
if (fb->fb_nseg > 2)
fd += fb->fb_nseg - 1;
if (!force && !(fd->fd_status & OHCI_CTXCTL_ACTIVE))
break;
TAILQ_REMOVE(&fc->fc_buf, fb, fb_list);
if (fc->fc_branch == &fd->fd_branch) {
OHCI_ASYNC_DMA_WRITE(sc, fc->fc_ctx,
OHCI_SUBREG_ContextControlClear, OHCI_CTXCTL_RUN);
fc->fc_branch = NULL;
for (i = 0; i < OHCI_LOOP; i++) {
if (!(OHCI_ASYNC_DMA_READ(sc, fc->fc_ctx,
OHCI_SUBREG_ContextControlClear) &
OHCI_CTXCTL_ACTIVE))
break;
}
}
fwohci_desc_put(sc, fb->fb_desc, fb->fb_nseg);
if (fb->fb_nseg > 2)
bus_dmamap_destroy(sc->sc_dmat, fb->fb_dmamap);
fc->fc_bufcnt--;
if (fb->fb_callback != NULL) {
(*fb->fb_callback)(sc->sc_sc1394.sc1394_if, fb->fb_m);
fb->fb_callback = NULL;
} else if (fb->fb_m != NULL)
m_freem(fb->fb_m);
free(fb, M_DEVBUF);
}
}
/*
* Asynchronous Transmit Reponse -- in response of request packet.
*/
static void
fwohci_atrs_output(struct fwohci_softc *sc, int rcode, struct fwohci_pkt *req,
struct fwohci_pkt *res)
{
if (((*req->fp_trail & 0x001f0000) >> 16) !=
OHCI_CTXCTL_EVENT_ACK_PENDING)
return;
res->fp_hdr[0] = (req->fp_hdr[0] & 0x0000fc00) | 0x00000100;
res->fp_hdr[1] = (req->fp_hdr[1] & 0xffff0000) | (rcode << 12);
switch (req->fp_tcode) {
case IEEE1394_TCODE_WRITE_REQ_QUAD:
case IEEE1394_TCODE_WRITE_REQ_BLOCK:
res->fp_tcode = IEEE1394_TCODE_WRITE_RESP;
res->fp_hlen = 12;
break;
case IEEE1394_TCODE_READ_REQ_QUAD:
res->fp_tcode = IEEE1394_TCODE_READ_RESP_QUAD;
res->fp_hlen = 16;
res->fp_dlen = 0;
if (res->fp_uio.uio_iovcnt == 1 && res->fp_iov[0].iov_len == 4)
res->fp_hdr[3] =
*(u_int32_t *)res->fp_iov[0].iov_base;
res->fp_uio.uio_iovcnt = 0;
break;
case IEEE1394_TCODE_READ_REQ_BLOCK:
case IEEE1394_TCODE_LOCK_REQ:
if (req->fp_tcode == IEEE1394_TCODE_LOCK_REQ)
res->fp_tcode = IEEE1394_TCODE_LOCK_RESP;
else
res->fp_tcode = IEEE1394_TCODE_READ_RESP_BLOCK;
res->fp_hlen = 16;
res->fp_dlen = res->fp_uio.uio_resid;
res->fp_hdr[3] = res->fp_dlen << 16;
break;
}
res->fp_hdr[0] |= (res->fp_tcode << 4);
fwohci_at_output(sc, sc->sc_ctx_atrs, res);
}
/*
* APPLICATION LAYER SERVICES
*/
/*
* Initialization for Configuration ROM (no DMA context)
*/
#define CFR_MAXUNIT 20
struct configromctx {
u_int32_t *ptr;
int curunit;
struct {
u_int32_t *start;
int length;
u_int32_t *refer;
int refunit;
} unit[CFR_MAXUNIT];
};
#define CFR_PUT_DATA4(cfr, d1, d2, d3, d4) \
(*(cfr)->ptr++ = (((d1)<<24) | ((d2)<<16) | ((d3)<<8) | (d4)))
#define CFR_PUT_DATA1(cfr, d) (*(cfr)->ptr++ = (d))
#define CFR_PUT_VALUE(cfr, key, d) (*(cfr)->ptr++ = ((key)<<24) | (d))
#define CFR_PUT_CRC(cfr, n) \
(*(cfr)->unit[n].start = ((cfr)->unit[n].length << 16) | \
fwohci_crc16((cfr)->unit[n].start + 1, (cfr)->unit[n].length))
#define CFR_START_UNIT(cfr, n) \
do { \
if ((cfr)->unit[n].refer != NULL) { \
*(cfr)->unit[n].refer |= \
(cfr)->ptr - (cfr)->unit[n].refer; \
CFR_PUT_CRC(cfr, (cfr)->unit[n].refunit); \
} \
(cfr)->curunit = (n); \
(cfr)->unit[n].start = (cfr)->ptr++; \
} while (0 /* CONSTCOND */)
#define CFR_PUT_REFER(cfr, key, n) \
do { \
(cfr)->unit[n].refer = (cfr)->ptr; \
(cfr)->unit[n].refunit = (cfr)->curunit; \
*(cfr)->ptr++ = (key) << 24; \
} while (0 /* CONSTCOND */)
#define CFR_END_UNIT(cfr) \
do { \
(cfr)->unit[(cfr)->curunit].length = (cfr)->ptr - \
((cfr)->unit[(cfr)->curunit].start + 1); \
CFR_PUT_CRC(cfr, (cfr)->curunit); \
} while (0 /* CONSTCOND */)
static u_int16_t
fwohci_crc16(u_int32_t *ptr, int len)
{
int shift;
u_int32_t crc, sum, data;
crc = 0;
while (len-- > 0) {
data = *ptr++;
for (shift = 28; shift >= 0; shift -= 4) {
sum = ((crc >> 12) ^ (data >> shift)) & 0x000f;
crc = (crc << 4) ^ (sum << 12) ^ (sum << 5) ^ sum;
}
crc &= 0xffff;
}
return crc;
}
static void
fwohci_configrom_init(struct fwohci_softc *sc)
{
int i;
struct fwohci_buf *fb;
u_int32_t *hdr;
struct configromctx cfr;
fb = &sc->sc_buf_cnfrom;
memset(&cfr, 0, sizeof(cfr));
cfr.ptr = hdr = (u_int32_t *)fb->fb_buf;
/* headers */
CFR_START_UNIT(&cfr, 0);
CFR_PUT_DATA1(&cfr, OHCI_CSR_READ(sc, OHCI_REG_BusId));
CFR_PUT_DATA1(&cfr, OHCI_CSR_READ(sc, OHCI_REG_BusOptions));
CFR_PUT_DATA1(&cfr, OHCI_CSR_READ(sc, OHCI_REG_GUIDHi));
CFR_PUT_DATA1(&cfr, OHCI_CSR_READ(sc, OHCI_REG_GUIDLo));
CFR_END_UNIT(&cfr);
/* copy info_length from crc_length */
*hdr |= (*hdr & 0x00ff0000) << 8;
OHCI_CSR_WRITE(sc, OHCI_REG_ConfigROMhdr, *hdr);
/* root directory */
CFR_START_UNIT(&cfr, 1);
CFR_PUT_VALUE(&cfr, 0x03, 0x00005e); /* vendor id */
CFR_PUT_REFER(&cfr, 0x81, 2); /* textual descriptor offset */
CFR_PUT_VALUE(&cfr, 0x0c, 0x0083c0); /* node capability */
/* spt,64,fix,lst,drq */
#ifdef INET
CFR_PUT_REFER(&cfr, 0xd1, 3); /* IPv4 unit directory */
#endif /* INET */
#ifdef INET6
CFR_PUT_REFER(&cfr, 0xd1, 4); /* IPv6 unit directory */
#endif /* INET6 */
CFR_END_UNIT(&cfr);
CFR_START_UNIT(&cfr, 2);
CFR_PUT_VALUE(&cfr, 0, 0); /* textual descriptor */
CFR_PUT_DATA1(&cfr, 0); /* minimal ASCII */
CFR_PUT_DATA4(&cfr, 'N', 'e', 't', 'B');
CFR_PUT_DATA4(&cfr, 'S', 'D', 0x00, 0x00);
CFR_END_UNIT(&cfr);
#ifdef INET
/* IPv4 unit directory */
CFR_START_UNIT(&cfr, 3);
CFR_PUT_VALUE(&cfr, 0x12, 0x00005e); /* unit spec id */
CFR_PUT_REFER(&cfr, 0x81, 6); /* textual descriptor offset */
CFR_PUT_VALUE(&cfr, 0x13, 0x000001); /* unit sw version */
CFR_PUT_REFER(&cfr, 0x81, 7); /* textual descriptor offset */
CFR_END_UNIT(&cfr);
CFR_START_UNIT(&cfr, 6);
CFR_PUT_VALUE(&cfr, 0, 0); /* textual descriptor */
CFR_PUT_DATA1(&cfr, 0); /* minimal ASCII */
CFR_PUT_DATA4(&cfr, 'I', 'A', 'N', 'A');
CFR_END_UNIT(&cfr);
CFR_START_UNIT(&cfr, 7);
CFR_PUT_VALUE(&cfr, 0, 0); /* textual descriptor */
CFR_PUT_DATA1(&cfr, 0); /* minimal ASCII */
CFR_PUT_DATA4(&cfr, 'I', 'P', 'v', '4');
CFR_END_UNIT(&cfr);
#endif /* INET */
#ifdef INET6
/* IPv6 unit directory */
CFR_START_UNIT(&cfr, 4);
CFR_PUT_VALUE(&cfr, 0x12, 0x00005e); /* unit spec id */
CFR_PUT_REFER(&cfr, 0x81, 8); /* textual descriptor offset */
CFR_PUT_VALUE(&cfr, 0x13, 0x000002); /* unit sw version */
/* XXX: TBA by IANA */
CFR_PUT_REFER(&cfr, 0x81, 9); /* textual descriptor offset */
CFR_END_UNIT(&cfr);
CFR_START_UNIT(&cfr, 8);
CFR_PUT_VALUE(&cfr, 0, 0); /* textual descriptor */
CFR_PUT_DATA1(&cfr, 0); /* minimal ASCII */
CFR_PUT_DATA4(&cfr, 'I', 'A', 'N', 'A');
CFR_END_UNIT(&cfr);
CFR_START_UNIT(&cfr, 9);
CFR_PUT_VALUE(&cfr, 0, 0); /* textual descriptor */
CFR_PUT_DATA1(&cfr, 0);
CFR_PUT_DATA4(&cfr, 'I', 'P', 'v', '6');
CFR_END_UNIT(&cfr);
#endif /* INET6 */
#ifdef FW_DEBUG
if (fw_dump) {
printf("%s: Config ROM:", sc->sc_sc1394.sc1394_dev.dv_xname);
for (i = 0; i < cfr.ptr - hdr; i++)
printf("%s%08x", i&7?" ":"\n ", hdr[i]);
printf("\n");
}
#endif /* FW_DEBUG */
/*
* Make network byte order for DMA
*/
for (i = 0; i < cfr.ptr - hdr; i++)
HTONL(hdr[i]);
bus_dmamap_sync(sc->sc_dmat, fb->fb_dmamap, 0,
(caddr_t)cfr.ptr - fb->fb_buf, BUS_DMASYNC_PREWRITE);
OHCI_CSR_WRITE(sc, OHCI_REG_ConfigROMmap,
fb->fb_dmamap->dm_segs[0].ds_addr);
OHCI_CSR_WRITE(sc, OHCI_REG_HCControlSet, OHCI_HCControl_BIBImageValid);
}
/*
* SelfID buffer (no DMA context)
*/
static void
fwohci_selfid_init(struct fwohci_softc *sc)
{
struct fwohci_buf *fb;
u_int32_t val;
fb = &sc->sc_buf_selfid;
#ifdef DIAGNOSTICS
if ((fb->fb_dmamap->dm_segs[0].ds_addr & 0x7ff) != 0)
panic("fwohci_selfid_init: not aligned: %p (%ld) %p",
(caddr_t)fb->fb_dmamap->dm_segs[0].ds_addr,
fb->fb_dmamap->dm_segs[0].ds_len, fb->fb_buf);
#endif
memset(fb->fb_buf, 0, fb->fb_dmamap->dm_segs[0].ds_len);
bus_dmamap_sync(sc->sc_dmat, fb->fb_dmamap, 0,
fb->fb_dmamap->dm_segs[0].ds_len, BUS_DMASYNC_PREREAD);
OHCI_CSR_WRITE(sc, OHCI_REG_SelfIDBuffer,
fb->fb_dmamap->dm_segs[0].ds_addr);
val = OHCI_CSR_READ(sc, OHCI_REG_SelfIDCount);
}
static int
fwohci_selfid_input(struct fwohci_softc *sc)
{
int i;
u_int32_t count, val, gen;
u_int32_t *buf;
val = OHCI_CSR_READ(sc, OHCI_REG_SelfIDCount);
if (val & OHCI_SelfID_Error) {
printf("%s: SelfID Error\n", sc->sc_sc1394.sc1394_dev.dv_xname);
return -1;
}
count = (val & OHCI_SelfID_Size_MASK) >> OHCI_SelfID_Size_BITPOS;
gen = (val & OHCI_SelfID_Gen_MASK) >> OHCI_SelfID_Gen_BITPOS;
bus_dmamap_sync(sc->sc_dmat, sc->sc_buf_selfid.fb_dmamap,
0, count << 2, BUS_DMASYNC_POSTREAD);
buf = (u_int32_t *)sc->sc_buf_selfid.fb_buf;
if ((val & OHCI_SelfID_Gen_MASK) != (buf[0] & OHCI_SelfID_Gen_MASK)) {
printf("%s: SelfID Gen mismatch (%d, %d)\n",
sc->sc_sc1394.sc1394_dev.dv_xname, gen,
(buf[0] & OHCI_SelfID_Gen_MASK) >> OHCI_SelfID_Gen_BITPOS);
return -1;
}
#ifdef FW_DEBUG
if (fw_verbose) {
printf("%s: SelfID: 0x%08x", sc->sc_sc1394.sc1394_dev.dv_xname,
val);
for (i = 0; i < count; i++)
printf("%s%08x", i&7?" ":"\n ", buf[i]);
printf("\n");
}
#endif /* FW_DEBUG */
val = OHCI_CSR_READ(sc, OHCI_REG_NodeId);
if ((val & OHCI_NodeId_IDValid) == 0) {
sc->sc_nodeid = 0xffff; /* invalid */
printf("%s: nodeid is invalid\n",
sc->sc_sc1394.sc1394_dev.dv_xname);
return -1;
}
sc->sc_nodeid = val & 0xffff;
for (i = 1; i < count; i += 2) {
if (buf[i] != ~buf[i + 1]) {
printf("%s: SelfID corrupted (%d, 0x%08x, 0x%08x)\n",
sc->sc_sc1394.sc1394_dev.dv_xname, i,
buf[i], buf[i + 1]);
if (i == 1 && buf[i] == 0 && buf[i + 1] == 0) {
/*
* XXX: CXD3222 sometimes fails to DMA
* selfid packet??
*/
sc->sc_rootid = (count - 1) / 2 - 1;
sc->sc_irmid = sc->sc_rootid;
break;
}
return -1;
}
if (buf[i] & 0x00000001)
continue; /* more pkt */
if (buf[i] & 0x00800000)
continue; /* external id */
sc->sc_rootid = (buf[i] & 0x3f000000) >> 24;
if ((buf[i] & 0x00400800) == 0x00400800)
sc->sc_irmid = sc->sc_rootid;
}
#ifdef FW_DEBUG
if (fw_verbose)
printf("%s: nodeid=0x%04x(%d), rootid=%d, irmid=%d\n",
sc->sc_sc1394.sc1394_dev.dv_xname,
sc->sc_nodeid, sc->sc_nodeid & OHCI_NodeId_NodeNumber,
sc->sc_rootid, sc->sc_irmid);
#endif
if ((sc->sc_nodeid & OHCI_NodeId_NodeNumber) > sc->sc_rootid)
return -1;
if ((sc->sc_nodeid & OHCI_NodeId_NodeNumber) == sc->sc_rootid)
OHCI_CSR_WRITE(sc, OHCI_REG_LinkControlSet,
OHCI_LinkControl_CycleMaster);
else
OHCI_CSR_WRITE(sc, OHCI_REG_LinkControlClear,
OHCI_LinkControl_CycleMaster);
return 0;
}
/*
* some CSRs are handled by driver.
*/
static void
fwohci_csr_init(struct fwohci_softc *sc)
{
int i;
static u_int32_t csr[] = {
CSR_STATE_CLEAR, CSR_STATE_SET, CSR_SB_CYCLE_TIME,
CSR_SB_BUS_TIME, CSR_SB_BUSY_TIMEOUT, CSR_SB_BUS_MANAGER_ID,
CSR_SB_CHANNEL_AVAILABLE_HI, CSR_SB_CHANNEL_AVAILABLE_LO,
CSR_SB_BROADCAST_CHANNEL
};
for (i = 0; i < sizeof(csr) / sizeof(csr[0]); i++) {
fwohci_handler_set(sc, IEEE1394_TCODE_WRITE_REQ_QUAD,
CSR_BASE_HI, CSR_BASE_LO + csr[i], fwohci_csr_input, NULL);
fwohci_handler_set(sc, IEEE1394_TCODE_READ_REQ_QUAD,
CSR_BASE_HI, CSR_BASE_LO + csr[i], fwohci_csr_input, NULL);
}
sc->sc_csr[CSR_SB_BROADCAST_CHANNEL] = 31; /*XXX*/
}
static int
fwohci_csr_input(struct fwohci_softc *sc, void *arg, struct fwohci_pkt *pkt)
{
struct fwohci_pkt res;
u_int32_t reg;
/*
* XXX need to do special functionality other than just r/w...
*/
reg = pkt->fp_hdr[2] - CSR_BASE_LO;
if ((reg & 0x03) != 0) {
/* alignment error */
return IEEE1394_RCODE_ADDRESS_ERROR;
}
#ifdef FW_DEBUG
if (fw_verbose)
printf("fwohci_csr_input: CSR[0x%04x]: 0x%08x",
reg, *(u_int32_t *)(&sc->sc_csr[reg]));
#endif
if (pkt->fp_tcode == IEEE1394_TCODE_WRITE_REQ_QUAD) {
#ifdef FW_DEBUG
if (fw_verbose)
printf(" -> 0x%08x\n",
ntohl(*(u_int32_t *)pkt->fp_iov[0].iov_base));
#endif
*(u_int32_t *)&sc->sc_csr[reg] =
ntohl(*(u_int32_t *)pkt->fp_iov[0].iov_base);
} else {
#ifdef FW_DEBUG
if (fw_verbose)
printf("\n");
#endif
res.fp_hdr[3] = htonl(*(u_int32_t *)&sc->sc_csr[reg]);
res.fp_iov[0].iov_base = &res.fp_hdr[3];
res.fp_iov[0].iov_len = 4;
res.fp_uio.uio_resid = 4;
res.fp_uio.uio_iovcnt = 1;
fwohci_atrs_output(sc, IEEE1394_RCODE_COMPLETE, pkt, &res);
return -1;
}
return IEEE1394_RCODE_COMPLETE;
}
/*
* Mapping between nodeid and unique ID (EUI-64).
*/
static void
fwohci_uid_collect(struct fwohci_softc *sc)
{
int i;
struct fwohci_uidtbl *fu;
struct fwohci_pkt pkt;
if (sc->sc_uidtbl != NULL)
free(sc->sc_uidtbl, M_DEVBUF);
sc->sc_uidtbl = malloc(sizeof(*fu) * (sc->sc_rootid + 1),
M_DEVBUF, M_NOWAIT);
if (sc->sc_uidtbl == NULL)
return;
memset(sc->sc_uidtbl, 0, sizeof(*fu) * (sc->sc_rootid + 1));
memset(&pkt, 0, sizeof(pkt));
for (i = 0, fu = sc->sc_uidtbl; i <= sc->sc_rootid; i++, fu++) {
if (i == (sc->sc_nodeid & OHCI_NodeId_NodeNumber)) {
memcpy(fu->fu_uid, sc->sc_sc1394.sc1394_guid, 8);
fu->fu_valid = 3;
continue;
}
fu->fu_valid = 0;
pkt.fp_tcode = IEEE1394_TCODE_READ_REQ_QUAD;
pkt.fp_hlen = 12;
pkt.fp_dlen = 0;
pkt.fp_hdr[0] = 0x00000100 | (sc->sc_tlabel << 10) |
(pkt.fp_tcode << 4);
pkt.fp_hdr[1] = ((0xffc0 | i) << 16) | CSR_BASE_HI;
pkt.fp_hdr[2] = CSR_BASE_LO + CSR_CONFIG_ROM + 12;
fwohci_handler_set(sc, IEEE1394_TCODE_READ_RESP_QUAD, i,
sc->sc_tlabel, fwohci_uid_input, (void *)0);
sc->sc_tlabel = (sc->sc_tlabel + 1) & 0x3f;
fwohci_at_output(sc, sc->sc_ctx_atrq, &pkt);
pkt.fp_hdr[0] = 0x00000100 | (sc->sc_tlabel << 10) |
(pkt.fp_tcode << 4);
pkt.fp_hdr[2] = CSR_BASE_LO + CSR_CONFIG_ROM + 16;
fwohci_handler_set(sc, IEEE1394_TCODE_READ_RESP_QUAD, i,
sc->sc_tlabel, fwohci_uid_input, (void *)1);
sc->sc_tlabel = (sc->sc_tlabel + 1) & 0x3f;
fwohci_at_output(sc, sc->sc_ctx_atrq, &pkt);
}
}
static int
fwohci_uid_input(struct fwohci_softc *sc, void *arg, struct fwohci_pkt *res)
{
int n, rcode;
struct fwohci_uidtbl *fu;
n = (res->fp_hdr[1] >> 16) & OHCI_NodeId_NodeNumber;
rcode = (res->fp_hdr[1] & 0x0000f000) >> 12;
if (rcode != IEEE1394_RCODE_COMPLETE ||
sc->sc_uidtbl == NULL ||
n > sc->sc_rootid)
return 0;
fu = &sc->sc_uidtbl[n];
if (arg == 0) {
memcpy(fu->fu_uid, res->fp_iov[0].iov_base, 4);
fu->fu_valid |= 0x1;
} else {
memcpy(fu->fu_uid + 4, res->fp_iov[0].iov_base, 4);
fu->fu_valid |= 0x2;
}
#ifdef FW_DEBUG
if (fw_verbose && fu->fu_valid == 0x3)
printf("fwohci_uid_input: "
"Node %d, UID %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n", n,
fu->fu_uid[0], fu->fu_uid[1], fu->fu_uid[2], fu->fu_uid[3],
fu->fu_uid[4], fu->fu_uid[5], fu->fu_uid[6], fu->fu_uid[7]);
#endif
return 0;
}
static int
fwohci_uid_lookup(struct fwohci_softc *sc, const u_int8_t *uid)
{
struct fwohci_uidtbl *fu;
int n;
static const u_int8_t bcast[] =
{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
fu = sc->sc_uidtbl;
if (fu == NULL) {
notfound:
if (memcmp(uid, bcast, sizeof(bcast)) == 0)
return IEEE1394_BCAST_PHY_ID;
fwohci_uid_collect(sc); /* try to get */
return -1;
}
for (n = 0; ; n++, fu++) {
if (n > sc->sc_rootid)
goto notfound;
if (fu->fu_valid == 0x3 && memcmp(fu->fu_uid, uid, 8) == 0)
break;
}
return n;
}
/*
* functions to support network interface
*/
static int
fwohci_if_inreg(struct device *self, u_int32_t offhi, u_int32_t offlo,
void (*handler)(struct device *, struct mbuf *))
{
struct fwohci_softc *sc = (struct fwohci_softc *)self;
int s;
s = splimp();
fwohci_handler_set(sc, IEEE1394_TCODE_WRITE_REQ_BLOCK, offhi, offlo,
fwohci_if_input, handler);
fwohci_handler_set(sc, IEEE1394_TCODE_STREAM_DATA,
sc->sc_csr[CSR_SB_BROADCAST_CHANNEL] & OHCI_NodeId_NodeNumber,
IEEE1394_TAG_GASP, fwohci_if_input, handler);
splx(s);
return 0;
}
static int
fwohci_if_input(struct fwohci_softc *sc, void *arg, struct fwohci_pkt *pkt)
{
int n, len;
struct mbuf *m;
struct iovec *iov;
void (*handler)(struct device *, struct mbuf *) = arg;
#ifdef FW_DEBUG
if (fw_verbose) {
int i;
printf("fwohci_if_input: tcode=0x%x, dlen=%d",
pkt->fp_tcode, pkt->fp_dlen);
if (fw_dump) {
for (i = 0; i < pkt->fp_hlen/4; i++)
printf("%s%08x", i?" ":"\n\t", pkt->fp_hdr[i]);
printf("$");
for (n = 0, len = pkt->fp_dlen; len > 0; len -= i, n++){
iov = &pkt->fp_iov[n];
for (i = 0; i < iov->iov_len; i++)
printf("%s%02x",
(i%32)?((i%4)?"":" "):"\n\t",
((u_int8_t *)iov->iov_base)[i]);
printf("$");
}
}
printf("\n");
}
#endif /* FW_DEBUG */
len = pkt->fp_dlen;
MGETHDR(m, M_DONTWAIT, MT_DATA);
if (m == NULL)
return IEEE1394_RCODE_COMPLETE;
if (len + m->m_len > MHLEN) {
MCLGET(m, M_DONTWAIT);
if ((m->m_flags & M_EXT) == 0) {
m_freem(m);
return IEEE1394_RCODE_COMPLETE;
}
}
m->m_len = 16;
n = (pkt->fp_hdr[1] >> 16) & OHCI_NodeId_NodeNumber;
if (sc->sc_uidtbl == NULL || n > sc->sc_rootid ||
sc->sc_uidtbl[n].fu_valid != 0x3) {
printf("%s: packet from unknown node: phy id %d\n",
sc->sc_sc1394.sc1394_dev.dv_xname, n);
m_freem(m);
return IEEE1394_RCODE_COMPLETE;
}
memcpy(mtod(m, caddr_t), sc->sc_uidtbl[n].fu_uid, 8);
if (pkt->fp_tcode == IEEE1394_TCODE_STREAM_DATA) {
m->m_flags |= M_BCAST;
mtod(m, u_int32_t *)[2] = mtod(m, u_int32_t *)[3] = 0;
} else {
mtod(m, u_int32_t *)[2] = htonl(pkt->fp_hdr[1]);
mtod(m, u_int32_t *)[3] = htonl(pkt->fp_hdr[2]);
}
mtod(m, u_int8_t *)[8] = n; /*XXX: node id for debug */
mtod(m, u_int8_t *)[9] =
(*pkt->fp_trail >> (16 + OHCI_CTXCTL_SPD_BITPOS)) &
((1 << OHCI_CTXCTL_SPD_BITLEN) - 1);
m->m_pkthdr.rcvif = NULL; /* set in child */
m->m_pkthdr.len = len + m->m_len;
/*
* We may use receive buffer by external mbuf instead of copy here.
* But asynchronous receive buffer must be operate in buffer fill
* mode, so that each receive buffer will shared by multiple mbufs.
* If upper layer doesn't free mbuf soon, e.g. application program
* is suspended, buffer must be reallocated.
* Isochronous buffer must be operate in packet buffer mode, and
* it is easy to map receive buffer to external mbuf. But it is
* used for broadcast/multicast only, and is expected not so
* performance sensitive for now.
* XXX: The performance may be important for multicast case,
* so we should revisit here later.
* -- onoe
*/
n = 0;
iov = pkt->fp_uio.uio_iov;
while (len > 0) {
memcpy(mtod(m, caddr_t) + m->m_len, iov->iov_base,
iov->iov_len);
m->m_len += iov->iov_len;
len -= iov->iov_len;
iov++;
}
(*handler)(sc->sc_sc1394.sc1394_if, m);
return IEEE1394_RCODE_COMPLETE;
}
static int
fwohci_if_output(struct device *self, struct mbuf *m0,
void (*callback)(struct device *, struct mbuf *))
{
struct fwohci_softc *sc = (struct fwohci_softc *)self;
struct fwohci_pkt pkt;
u_int8_t *p;
int s, n, error, spd, hdrlen, maxrec;
p = mtod(m0, u_int8_t *);
if (m0->m_flags & (M_BCAST | M_MCAST)) {
spd = IEEE1394_SPD_S100; /*XXX*/
maxrec = 512; /*XXX*/
hdrlen = 8;
} else {
n = fwohci_uid_lookup(sc, p);
if (n < 0) {
printf("%s: nodeid unknown:"
" %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n",
sc->sc_sc1394.sc1394_dev.dv_xname,
p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7]);
error = EHOSTUNREACH;
goto end;
}
if (n == IEEE1394_BCAST_PHY_ID) {
printf("%s: broadcast with !M_MCAST\n",
sc->sc_sc1394.sc1394_dev.dv_xname);
#ifdef FW_DEBUG
if (fw_dump) {
struct mbuf *m;
printf("packet:");
for (m = m0; m != NULL; m = m->m_next) {
for (n = 0; n < m->m_len; n++)
printf("%s%02x", (n%32)?
((n%4)?"":" "):"\n\t",
mtod(m, u_int8_t *)[n]);
printf("$");
}
printf("\n");
}
#endif
error = EHOSTUNREACH;
goto end;
}
maxrec = 2 << p[8];
spd = p[9];
hdrlen = 0;
}
if (spd > sc->sc_sc1394.sc1394_link_speed) {
#ifdef FW_DEBUG
if (fw_verbose)
printf("fwohci_if_output: spd (%d) is faster than %d\n",
spd, sc->sc_sc1394.sc1394_link_speed);
#endif
spd = sc->sc_sc1394.sc1394_link_speed;
}
if (maxrec > (512 << spd)) {
#ifdef FW_DEBUG
if (fw_verbose)
printf("fwohci_if_output: maxrec (%d) is larger for"
" spd (%d)\n", maxrec, spd);
#endif
maxrec = 512 << spd;
}
while (maxrec > sc->sc_sc1394.sc1394_max_receive) {
#ifdef FW_DEBUG
if (fw_verbose)
printf("fwohci_if_output: maxrec (%d) is larger than"
" %d\n", maxrec, sc->sc_sc1394.sc1394_max_receive);
#endif
maxrec >>= 1;
}
if (maxrec < 512) {
#ifdef FW_DEBUG
if (fw_verbose)
printf("fwohci_if_output: maxrec (%d) is smaller"
" than minimum\n", maxrec);
#endif
maxrec = 512;
}
m_adj(m0, 16 - hdrlen);
if (m0->m_pkthdr.len > maxrec) {
#ifdef FW_DEBUG
if (fw_verbose)
printf("fwohci_if_output: packet too big:"
" hdr %d, pktlen %d, maxrec %d\n",
hdrlen, m0->m_pkthdr.len, maxrec);
#endif
error = E2BIG; /*XXX*/
goto end;
}
memset(&pkt, 0, sizeof(pkt));
pkt.fp_uio.uio_iov = pkt.fp_iov;
pkt.fp_uio.uio_segflg = UIO_SYSSPACE;
pkt.fp_uio.uio_rw = UIO_WRITE;
s = splimp();
if (m0->m_flags & (M_BCAST | M_MCAST)) {
/* construct GASP header */
p = mtod(m0, u_int8_t *);
p[0] = sc->sc_nodeid >> 8;
p[1] = sc->sc_nodeid & 0xff;
p[2] = 0x00; p[3] = 0x00; p[4] = 0x5e;
p[5] = 0x00; p[6] = 0x00; p[7] = 0x01;
pkt.fp_tcode = IEEE1394_TCODE_STREAM_DATA;
pkt.fp_hlen = 8;
pkt.fp_hdr[0] = (spd << 16) | (IEEE1394_TAG_GASP << 14) |
((sc->sc_csr[CSR_SB_BROADCAST_CHANNEL] &
OHCI_NodeId_NodeNumber) << 8);
pkt.fp_hdr[1] = m0->m_pkthdr.len << 16;
} else {
pkt.fp_tcode = IEEE1394_TCODE_WRITE_REQ_BLOCK;
pkt.fp_hlen = 16;
pkt.fp_hdr[0] = 0x00800100 | (sc->sc_tlabel << 10) |
(spd << 16);
pkt.fp_hdr[1] =
(((sc->sc_nodeid & OHCI_NodeId_BusNumber) | n) << 16) |
(p[10] << 8) | p[11];
pkt.fp_hdr[2] = (p[12]<<24) | (p[13]<<16) | (p[14]<<8) | p[15];
pkt.fp_hdr[3] = m0->m_pkthdr.len << 16;
sc->sc_tlabel = (sc->sc_tlabel + 1) & 0x3f;
}
pkt.fp_hdr[0] |= (pkt.fp_tcode << 4);
pkt.fp_dlen = m0->m_pkthdr.len;
pkt.fp_m = m0;
pkt.fp_callback = callback;
error = fwohci_at_output(sc, sc->sc_ctx_atrq, &pkt);
splx(s);
m0 = pkt.fp_m;
end:
if (error) {
if (callback)
(*callback)(sc->sc_sc1394.sc1394_if, m0);
else
m_freem(m0);
}
return error;
}
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