/* $OpenBSD: fwohci.c,v 1.3 2002/07/07 13:41:27 tdeval Exp $ */ /* $NetBSD: fwohci.c,v 1.54 2002/03/29 05:06:42 jmc 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 . */ /* * The first version to support isochronous acquisition part is wrtten * by HAYAKAWA Koichi . */ #include #ifdef __KERNEL_RCSID __KERNEL_RCSID(0, "$NetBSD: fwohci.c,v 1.54 2002/03/29 05:06:42 jmc Exp $"); #endif #define DOUBLEBUF 1 #define NO_THREAD 0 #ifdef __NetBSD__ #include "opt_inet.h" #endif #include #include #include #include #ifdef __NetBSD__ #include #else #include #endif #include #include #include #include #ifdef __OpenBSD__ #include #endif #if __NetBSD_Version__ >= 105010000 || !defined(__NetBSD__) #include #else #include #endif #include #include #include #include #include #include static const char * const ieee1394_speeds[] = { IEEE1394_SPD_STRINGS }; #if 0 int fwohci_dnamem_alloc(struct fwohci_softc *sc, int size, int alignment, bus_dmamap_t *mapp, caddr_t *kvap, int flags); #endif void fwohci_create_event_thread(void *); void fwohci_thread_init(void *); void fwohci_event_thread(struct fwohci_softc *); void fwohci_hw_init(struct fwohci_softc *); void fwohci_power(int, void *); void fwohci_shutdown(void *); int fwohci_desc_alloc(struct fwohci_softc *); struct fwohci_desc *fwohci_desc_get(struct fwohci_softc *, int); void fwohci_desc_put(struct fwohci_softc *, struct fwohci_desc *, int); int fwohci_ctx_alloc(struct fwohci_softc *, struct fwohci_ctx **, int, int, int); void fwohci_ctx_free(struct fwohci_softc *, struct fwohci_ctx *); void fwohci_ctx_init(struct fwohci_softc *, struct fwohci_ctx *); int fwohci_buf_alloc(struct fwohci_softc *, struct fwohci_buf *); void fwohci_buf_free(struct fwohci_softc *, struct fwohci_buf *); void fwohci_buf_init_rx(struct fwohci_softc *); void fwohci_buf_start_rx(struct fwohci_softc *); void fwohci_buf_stop_tx(struct fwohci_softc *); void fwohci_buf_stop_rx(struct fwohci_softc *); void fwohci_buf_next(struct fwohci_softc *, struct fwohci_ctx *); int fwohci_buf_pktget(struct fwohci_softc *, struct fwohci_buf **, caddr_t *, int); int fwohci_buf_input(struct fwohci_softc *, struct fwohci_ctx *, struct fwohci_pkt *); int fwohci_buf_input_ppb(struct fwohci_softc *, struct fwohci_ctx *, struct fwohci_pkt *); u_int8_t fwohci_phy_read(struct fwohci_softc *, u_int8_t); void fwohci_phy_write(struct fwohci_softc *, u_int8_t, u_int8_t); void fwohci_phy_busreset(struct fwohci_softc *); void fwohci_phy_input(struct fwohci_softc *, struct fwohci_pkt *); int fwohci_handler_set(struct fwohci_softc *, int, u_int32_t, u_int32_t, int (*)(struct fwohci_softc *, void *, struct fwohci_pkt *), void *); void fwohci_arrq_input(struct fwohci_softc *, struct fwohci_ctx *); void fwohci_arrs_input(struct fwohci_softc *, struct fwohci_ctx *); void fwohci_ir_input(struct fwohci_softc *, struct fwohci_ctx *); int fwohci_at_output(struct fwohci_softc *, struct fwohci_ctx *, struct fwohci_pkt *); void fwohci_at_done(struct fwohci_softc *, struct fwohci_ctx *, int); void fwohci_atrs_output(struct fwohci_softc *, int, struct fwohci_pkt *, struct fwohci_pkt *); int fwohci_guidrom_init(struct fwohci_softc *); void fwohci_configrom_init(struct fwohci_softc *); int fwohci_configrom_input(struct fwohci_softc *, void *, struct fwohci_pkt *); void fwohci_selfid_init(struct fwohci_softc *); int fwohci_selfid_input(struct fwohci_softc *); void fwohci_csr_init(struct fwohci_softc *); int fwohci_csr_input(struct fwohci_softc *, void *, struct fwohci_pkt *); void fwohci_uid_collect(struct fwohci_softc *); void fwohci_uid_req(struct fwohci_softc *, int); int fwohci_uid_input(struct fwohci_softc *, void *, struct fwohci_pkt *); int fwohci_uid_lookup(struct fwohci_softc *, const u_int8_t *); void fwohci_check_nodes(struct fwohci_softc *); int fwohci_if_inreg(struct device *, u_int32_t, u_int32_t, void (*)(struct device *, struct mbuf *)); int fwohci_if_input(struct fwohci_softc *, void *, struct fwohci_pkt *); int fwohci_if_input_iso(struct fwohci_softc *, void *, struct fwohci_pkt *); int fwohci_if_output(struct device *, struct mbuf *, void (*)(struct device *, struct mbuf *)); int fwohci_if_setiso(struct device *, u_int32_t, u_int32_t, u_int32_t, void (*)(struct device *, struct mbuf *)); int fwohci_read(struct ieee1394_abuf *); int fwohci_write(struct ieee1394_abuf *); int fwohci_read_resp(struct fwohci_softc *, void *, struct fwohci_pkt *); int fwohci_write_ack(struct fwohci_softc *, void *, struct fwohci_pkt *); int fwohci_read_multi_resp(struct fwohci_softc *, void *, struct fwohci_pkt *); int fwohci_inreg(struct ieee1394_abuf *, int); int fwohci_unreg(struct ieee1394_abuf *, int); int fwohci_parse_input(struct fwohci_softc *, void *, struct fwohci_pkt *); #ifdef __NetBSD__ int fwohci_submatch(struct device *, struct cfdata *, void *); #else int fwohci_submatch(struct device *, void *, void *); #endif u_int16_t fwohci_crc16(u_int32_t *, int); #ifdef FW_DEBUG void fwohci_show_intr(struct fwohci_softc *, u_int32_t); void fwohci_show_phypkt(struct fwohci_softc *, u_int32_t); /* 1 is normal debug, 2 is verbose debug, 3 is complete (packet dumps). */ #define DPRINTF(x) if (fwdebug) printf x #define DPRINTFN(n,x) if (fwdebug>(n)) printf x int fwdebug = 1; #else #define DPRINTF(x) #define DPRINTFN(n,x) #endif #ifdef __OpenBSD__ struct cfdriver fwohci_cd = { NULL, "fwohci", DV_DULL }; #endif int fwohci_init(struct fwohci_softc *sc, const struct evcnt *ev) { int i; u_int32_t val; #if 0 int error; #endif #ifdef __NetBSD__ evcnt_attach_dynamic(&sc->sc_intrcnt, EVCNT_TYPE_INTR, ev, sc->sc_sc1394.sc1394_dev.dv_xname, "intr"); evcnt_attach_dynamic(&sc->sc_isocnt, EVCNT_TYPE_MISC, ev, sc->sc_sc1394.sc1394_dev.dv_xname, "iso"); evcnt_attach_dynamic(&sc->sc_isopktcnt, EVCNT_TYPE_MISC, ev, sc->sc_sc1394.sc1394_dev.dv_xname, "isopackets"); #endif /* * 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; DELAY(10); } /* 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)); LIST_INIT(&sc->sc_nodelist); if (fwohci_guidrom_init(sc) != 0) { printf("\n%s: fatal: no global UID ROM\n", sc->sc_sc1394.sc1394_dev.dv_xname); return -1; } 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 = OHCI_BITVAL(val, OHCI_BusOptions_LinkSpd); 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 << (OHCI_BITVAL(val, OHCI_BusOptions_MaxRec) + 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 sc->sc_dying = 0; sc->sc_nodeid = 0xffff; /* invalid */ #ifdef __NetBSD__ kthread_create(fwohci_create_event_thread, sc); #else if (initproc == NULL) kthread_create_deferred(fwohci_create_event_thread, sc); else /* late binding, threads already running */ fwohci_create_event_thread(sc); #endif return 0; } int fwohci_if_setiso(struct device *self, u_int32_t channel, u_int32_t tag, u_int32_t direction, void (*handler)(struct device *, struct mbuf *)) { struct fwohci_softc *sc = (struct fwohci_softc *)self; int retval; int s; if (direction == 1) { return EIO; } s = splnet(); retval = fwohci_handler_set(sc, IEEE1394_TCODE_STREAM_DATA, channel, tag, fwohci_if_input_iso, handler); splx(s); if (!retval) { printf("%s: dummy iso handler set\n", sc->sc_sc1394.sc1394_dev.dv_xname); } else { printf("%s: dummy iso handler cannot set\n", sc->sc_sc1394.sc1394_dev.dv_xname); } return retval; } int fwohci_intr(void *arg) { struct fwohci_softc * const sc = arg; int progress = 0; u_int32_t intmask, iso; for (;;) { intmask = OHCI_CSR_READ(sc, OHCI_REG_IntEventClear); /* * On a bus reset, everything except bus reset gets * cleared. That can't get cleared until the selfid * phase completes (which happens outside the * interrupt routines). So if just a bus reset is left * in the mask and it's already in the sc_intmask, * just return. */ if ((intmask == 0) || (progress && (intmask == OHCI_Int_BusReset) && (sc->sc_intmask & OHCI_Int_BusReset))) { if (progress) wakeup(fwohci_event_thread); return progress; } OHCI_CSR_WRITE(sc, OHCI_REG_IntEventClear, intmask & ~OHCI_Int_BusReset); #ifdef FW_DEBUG if (fwdebug > 1) fwohci_show_intr(sc, intmask); #endif 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. */ intmask &= OHCI_Int_SelfIDComplete; OHCI_CSR_WRITE(sc, OHCI_REG_IntMaskClear, OHCI_Int_BusReset); sc->sc_intmask = OHCI_Int_BusReset; } sc->sc_intmask |= intmask; 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) { #if NO_THREAD int i; int asyncstream = 0; #endif iso = OHCI_CSR_READ(sc, OHCI_REG_IsoRecvIntEventClear); OHCI_CSR_WRITE(sc, OHCI_REG_IsoRecvIntEventClear, iso); #if NO_THREAD for (i = 0; i < sc->sc_isoctx; i++) { if ((iso & (1<sc_ctx_ir[i] != NULL) { if (sc->sc_ctx_ir[i]->fc_type == FWOHCI_CTX_ISO_SINGLE) { asyncstream |= (1 << i); continue; } bus_dmamap_sync(sc->sc_dmat, sc->sc_ddmamap, 0, sizeof(struct fwohci_desc) * sc->sc_descsize, BUS_DMASYNC_PREREAD); sc->sc_isocnt.ev_count++; fwohci_ir_input(sc, sc->sc_ctx_ir[i]); } } if (asyncstream != 0) { sc->sc_iso |= asyncstream; } else { /* all iso intr is pure isochronous */ sc->sc_intmask &= ~OHCI_Int_IsochRx; } #else sc->sc_iso |= iso; #endif /* NO_THREAD */ } if (!progress) { sc->sc_intrcnt.ev_count++; progress = 1; } } } void fwohci_create_event_thread(void *arg) { struct fwohci_softc *sc = arg; #ifdef __NetBSD__ if (kthread_create1(fwohci_thread_init, sc, &sc->sc_event_thread, "%s", sc->sc_sc1394.sc1394_dev.dv_xname)) #else if (kthread_create(fwohci_thread_init, sc, &sc->sc_event_thread, "%s", sc->sc_sc1394.sc1394_dev.dv_xname)) #endif { printf("%s: unable to create event thread\n", sc->sc_sc1394.sc1394_dev.dv_xname); panic("fwohci_create_event_thread"); } } void fwohci_thread_init(void *arg) { struct fwohci_softc *sc = arg; int i; /* * Allocate descriptors */ if (fwohci_desc_alloc(sc)) { printf("%s: not enabling interrupts\n", sc->sc_sc1394.sc1394_dev.dv_xname); kthread_exit(1); } /* * Enable Link Power */ OHCI_CSR_WRITE(sc, OHCI_REG_HCControlSet, OHCI_HCControl_LPS); /* * Allocate DMA Context */ fwohci_ctx_alloc(sc, &sc->sc_ctx_arrq, OHCI_BUF_ARRQ_CNT, OHCI_CTX_ASYNC_RX_REQUEST, FWOHCI_CTX_ASYNC); fwohci_ctx_alloc(sc, &sc->sc_ctx_arrs, OHCI_BUF_ARRS_CNT, OHCI_CTX_ASYNC_RX_RESPONSE, FWOHCI_CTX_ASYNC); fwohci_ctx_alloc(sc, &sc->sc_ctx_atrq, 0, OHCI_CTX_ASYNC_TX_REQUEST, FWOHCI_CTX_ASYNC); fwohci_ctx_alloc(sc, &sc->sc_ctx_atrs, 0, OHCI_CTX_ASYNC_TX_RESPONSE, FWOHCI_CTX_ASYNC); 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; /* * Allocate buffer for configuration ROM and SelfID buffer */ fwohci_buf_alloc(sc, &sc->sc_buf_cnfrom); fwohci_buf_alloc(sc, &sc->sc_buf_selfid); #ifdef __NetBSD__ callout_init(&sc->sc_selfid_callout); #else bzero(&sc->sc_selfid_callout, sizeof(sc->sc_selfid_callout)); #endif sc->sc_sc1394.sc1394_ifinreg = fwohci_if_inreg; sc->sc_sc1394.sc1394_ifoutput = fwohci_if_output; sc->sc_sc1394.sc1394_ifsetiso = fwohci_if_setiso; /* * establish hooks for shutdown and suspend/resume */ sc->sc_shutdownhook = shutdownhook_establish(fwohci_shutdown, sc); sc->sc_powerhook = powerhook_establish(fwohci_power, sc); sc->sc_sc1394.sc1394_if = config_found(&sc->sc_sc1394.sc1394_dev, "fw", fwohci_print); /* Main loop. It's not coming back normally. */ fwohci_event_thread(sc); kthread_exit(0); } void fwohci_event_thread(struct fwohci_softc *sc) { int i, s; u_int32_t intmask, iso; s = splbio(); /* * Initialize hardware registers. */ fwohci_hw_init(sc); /* Initial Bus Reset */ fwohci_phy_busreset(sc); splx(s); while (!sc->sc_dying) { s = splbio(); intmask = sc->sc_intmask; if (intmask == 0) { tsleep(fwohci_event_thread, PZERO, "fwohciev", 0); splx(s); continue; } sc->sc_intmask = 0; splx(s); if (intmask & OHCI_Int_BusReset) { fwohci_buf_stop_tx(sc); if (sc->sc_uidtbl != NULL) { free(sc->sc_uidtbl, M_DEVBUF); sc->sc_uidtbl = NULL; } #ifdef __NetBSD__ callout_reset(&sc->sc_selfid_callout, OHCI_SELFID_TIMEOUT, (void (*)(void *))fwohci_phy_busreset, sc); #else timeout_set(&sc->sc_selfid_callout, (void (*)(void *))fwohci_phy_busreset, sc); timeout_add(&sc->sc_selfid_callout, OHCI_SELFID_TIMEOUT); #endif sc->sc_nodeid = 0xffff; /* indicate invalid */ sc->sc_rootid = 0; sc->sc_irmid = IEEE1394_BCAST_PHY_ID; } if (intmask & OHCI_Int_SelfIDComplete) { s = splbio(); OHCI_CSR_WRITE(sc, OHCI_REG_IntEventClear, OHCI_Int_BusReset); OHCI_CSR_WRITE(sc, OHCI_REG_IntMaskSet, OHCI_Int_BusReset); splx(s); #ifdef __NetBSD__ callout_stop(&sc->sc_selfid_callout); #else timeout_del(&sc->sc_selfid_callout); #endif if (fwohci_selfid_input(sc) == 0) { fwohci_buf_start_rx(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_IsochRx) { s = splbio(); iso = sc->sc_iso; sc->sc_iso = 0; splx(s); 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]); sc->sc_isocnt.ev_count++; } } } } } #if 0 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; } 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; DELAY(10); } 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 val &= ~(OHCI_BusOptions_PMC); 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_rx(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); #if BYTE_ORDER == BIG_ENDIAN OHCI_CSR_WRITE(sc, OHCI_REG_HCControlSet, OHCI_HCControl_NoByteSwapData); #endif 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_rx(sc); } void fwohci_power(int why, void *arg) { struct fwohci_softc *sc = arg; int s; s = splbio(); switch (why) { case PWR_SUSPEND: case PWR_STANDBY: fwohci_shutdown(sc); break; case PWR_RESUME: fwohci_hw_init(sc); fwohci_phy_busreset(sc); break; #ifdef __NetBSD__ case PWR_SOFTSUSPEND: case PWR_SOFTSTANDBY: case PWR_SOFTRESUME: break; #endif } splx(s); } void fwohci_shutdown(void *arg) { struct fwohci_softc *sc = arg; u_int32_t val; #ifdef __NetBSD__ callout_stop(&sc->sc_selfid_callout); #else timeout_del(&sc->sc_selfid_callout); #endif /* disable all interrupt */ OHCI_CSR_WRITE(sc, OHCI_REG_IntMaskClear, OHCI_Int_MasterEnable); fwohci_buf_stop_tx(sc); fwohci_buf_stop_rx(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_LinkEnable); 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. */ 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 & 0xf) << OHCI_PhyControl_RegAddr_BITPOS)); for (i = 0; i < OHCI_LOOP; i++) { if (OHCI_CSR_READ(sc, OHCI_REG_PhyControl) & OHCI_PhyControl_RdDone) break; DELAY(10); } val = OHCI_CSR_READ(sc, OHCI_REG_PhyControl); return (val & OHCI_PhyControl_RdData) >> OHCI_PhyControl_RdData_BITPOS; } /* * write the PHY Register. */ 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 & 0xf) << 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; DELAY(10); } } /* * Initiate Bus Reset */ void fwohci_phy_busreset(struct fwohci_softc *sc) { int s; u_int8_t val; s = splbio(); OHCI_CSR_WRITE(sc, OHCI_REG_IntEventClear, OHCI_Int_BusReset | OHCI_Int_SelfIDComplete); OHCI_CSR_WRITE(sc, OHCI_REG_IntMaskSet, OHCI_Int_BusReset); #ifdef __NetBSD__ callout_stop(&sc->sc_selfid_callout); #else timeout_del(&sc->sc_selfid_callout); #endif 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 */ void fwohci_phy_input(struct fwohci_softc *sc, struct fwohci_pkt *pkt) { u_int32_t val; val = pkt->fp_hdr[1]; if (val != ~pkt->fp_hdr[2]) { if (val == 0 && ((*pkt->fp_trail & 0x001f0000) >> 16) == OHCI_CTXCTL_EVENT_BUS_RESET) { DPRINTFN(1, ("fwohci_phy_input: BusReset: 0x%08x\n", pkt->fp_hdr[2])); } else { printf("%s: phy packet corrupted (0x%08x, 0x%08x)\n", sc->sc_sc1394.sc1394_dev.dv_xname, val, pkt->fp_hdr[2]); } return; } #ifdef FW_DEBUG if (fwdebug > 1) fwohci_show_phypkt(sc, val); #endif } /* * Descriptor for context DMA. */ 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); #ifdef M_ZERO sc->sc_descmap = malloc(mapsize, M_DEVBUF, M_WAITOK|M_ZERO); #else sc->sc_descmap = malloc(mapsize, M_DEVBUF, M_WAITOK); bzero(sc->sc_descmap, mapsize); #endif 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; } 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; } 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 DIAGNOSTIC if (isclr(sc->sc_descmap, n)) panic("fwohci_desc_put: duplicated free"); #endif clrbit(sc->sc_descmap, n); } } /* * Asyncronous/Isochronous Transmit/Receive Context */ int fwohci_ctx_alloc(struct fwohci_softc *sc, struct fwohci_ctx **fcp, int bufcnt, int ctx, int ctxtype) { int i, error; struct fwohci_ctx *fc; struct fwohci_buf *fb; struct fwohci_desc *fd; #if DOUBLEBUF int buf2cnt; #endif #ifdef M_ZERO fc = malloc(sizeof(*fc), M_DEVBUF, M_WAITOK|M_ZERO); #else fc = malloc(sizeof(*fc), M_DEVBUF, M_WAITOK); bzero(fc, sizeof(*fc)); #endif LIST_INIT(&fc->fc_handler); TAILQ_INIT(&fc->fc_buf); fc->fc_ctx = ctx; #ifdef M_ZERO fc->fc_buffers = fb = malloc(sizeof(*fb) * bufcnt, M_DEVBUF, M_WAITOK|M_ZERO); #else fc->fc_buffers = fb = malloc(sizeof(*fb) * bufcnt, M_DEVBUF, M_WAITOK); bzero(fb, sizeof(*fb) * bufcnt); #endif fc->fc_bufcnt = bufcnt; #if DOUBLEBUF TAILQ_INIT(&fc->fc_buf2); /* for isochronous */ if (ctxtype == FWOHCI_CTX_ISO_MULTI) { buf2cnt = bufcnt/2; bufcnt -= buf2cnt; if (buf2cnt == 0) { panic("cannot allocate iso buffer"); } } #endif 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); } #if DOUBLEBUF if (ctxtype == FWOHCI_CTX_ISO_MULTI) { for (i = bufcnt; i < bufcnt + buf2cnt; 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); bus_dmamap_sync(sc->sc_dmat, sc->sc_ddmamap, (caddr_t)fd - (caddr_t)sc->sc_desc, sizeof(struct fwohci_desc), BUS_DMASYNC_PREWRITE); 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_buf2, fb, fb_list); bus_dmamap_sync(sc->sc_dmat, sc->sc_ddmamap, (caddr_t)fd - (caddr_t)sc->sc_desc, sizeof(struct fwohci_desc), BUS_DMASYNC_POSTWRITE); } } #endif /* DOUBLEBUF */ fc->fc_type = ctxtype; *fcp = fc; return 0; fail: while (i-- > 0) { fb--; if (fb->fb_desc) fwohci_desc_put(sc, fb->fb_desc, 1); fwohci_buf_free(sc, fb); } free(fc, M_DEVBUF); return error; } void fwohci_ctx_free(struct fwohci_softc *sc, struct fwohci_ctx *fc) { struct fwohci_buf *fb; struct fwohci_handler *fh; #if DOUBLEBUF if ((fc->fc_type == FWOHCI_CTX_ISO_MULTI) && (TAILQ_FIRST(&fc->fc_buf) > TAILQ_FIRST(&fc->fc_buf2))) { struct fwohci_buf_s fctmp; fctmp = fc->fc_buf; fc->fc_buf = fc->fc_buf2; fc->fc_buf2 = fctmp; } #endif 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); if (fb->fb_desc) fwohci_desc_put(sc, fb->fb_desc, 1); fwohci_buf_free(sc, fb); } #if DOUBLEBUF while ((fb = TAILQ_FIRST(&fc->fc_buf2)) != NULL) { TAILQ_REMOVE(&fc->fc_buf2, fb, fb_list); if (fb->fb_desc) fwohci_desc_put(sc, fb->fb_desc, 1); fwohci_buf_free(sc, fb); } #endif /* DOUBLEBUF */ free(fc->fc_buffers, M_DEVBUF); free(fc, M_DEVBUF); } void fwohci_ctx_init(struct fwohci_softc *sc, struct fwohci_ctx *fc) { struct fwohci_buf *fb, *nfb; struct fwohci_desc *fd; struct fwohci_handler *fh; 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; } #if DOUBLEBUF for (fb = TAILQ_FIRST(&fc->fc_buf2); fb != NULL; fb = nfb) { bus_dmamap_sync(sc->sc_dmat, sc->sc_ddmamap, (caddr_t)fd - (caddr_t)sc->sc_desc, sizeof(struct fwohci_desc), BUS_DMASYNC_PREWRITE); 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; bus_dmamap_sync(sc->sc_dmat, sc->sc_ddmamap, (caddr_t)fd - (caddr_t)sc->sc_desc, sizeof(struct fwohci_desc), BUS_DMASYNC_POSTWRITE); } #endif /* DOUBLEBUF */ n = fc->fc_ctx; fb = TAILQ_FIRST(&fc->fc_buf); if (fc->fc_type != FWOHCI_CTX_ASYNC) { 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); if (fc->fc_type == FWOHCI_CTX_ISO_MULTI) { OHCI_SYNC_RX_DMA_WRITE(sc, n, OHCI_SUBREG_ContextControlSet, OHCI_CTXCTL_RX_BUFFER_FILL); } fh = LIST_FIRST(&fc->fc_handler); OHCI_SYNC_RX_DMA_WRITE(sc, n, OHCI_SUBREG_ContextMatch, (OHCI_CTXMATCH_TAG0 << fh->fh_key2) | fh->fh_key1); } else { OHCI_ASYNC_DMA_WRITE(sc, n, OHCI_SUBREG_CommandPtr, fb->fb_daddr | 1); } } /* * DMA data buffer */ 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; } 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); } void fwohci_buf_init_rx(struct fwohci_softc *sc) { int i; /* * 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]); } } void fwohci_buf_start_rx(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) OHCI_SYNC_RX_DMA_WRITE(sc, i, OHCI_SUBREG_ContextControlSet, OHCI_CTXCTL_RUN); } } void fwohci_buf_stop_tx(struct fwohci_softc *sc) { int i; 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); /* * Make sure the transmitter is stopped. */ for (i = 0; i < OHCI_LOOP; i++) { DELAY(10); 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; } /* * Initialize for Asynchronous Transmit Queue. */ fwohci_at_done(sc, sc->sc_ctx_atrq, 1); fwohci_at_done(sc, sc->sc_ctx_atrs, 1); } void fwohci_buf_stop_rx(struct fwohci_softc *sc) { int i; 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); } } void fwohci_buf_next(struct fwohci_softc *sc, struct fwohci_ctx *fc) { struct fwohci_buf *fb, *tfb; #if DOUBLEBUF if (fc->fc_type != FWOHCI_CTX_ISO_MULTI) { #endif while ((fb = TAILQ_FIRST(&fc->fc_buf)) != NULL) { if (fc->fc_type) { if (fb->fb_off == 0) break; } else { 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); } #if DOUBLEBUF } else { struct fwohci_buf_s fctmp; /* cleaning buffer */ for (fb = TAILQ_FIRST(&fc->fc_buf); fb != NULL; fb = TAILQ_NEXT(fb, fb_list)) { fb->fb_off = 0; fb->fb_desc->fd_rescount = fb->fb_desc->fd_reqcount; } /* rotating buffer */ fctmp = fc->fc_buf; fc->fc_buf = fc->fc_buf2; fc->fc_buf2 = fctmp; } #endif } int fwohci_buf_pktget(struct fwohci_softc *sc, struct fwohci_buf **fbp, caddr_t *pp, int len) { struct fwohci_buf *fb; struct fwohci_desc *fd; int bufend; fb = *fbp; again: fd = fb->fb_desc; DPRINTFN(1, ("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)); bufend = fd->fd_reqcount - fd->fd_rescount; if (fb->fb_off >= bufend) { DPRINTFN(5, ("buf %x finish req %d res %d off %d ", fb->fb_desc->fd_data, fd->fd_reqcount, fd->fd_rescount, fb->fb_off)); if (fd->fd_rescount == 0) { *fbp = fb = TAILQ_NEXT(fb, fb_list); if (fb != 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; } int fwohci_buf_input(struct fwohci_softc *sc, struct fwohci_ctx *fc, struct fwohci_pkt *pkt) { caddr_t p; struct fwohci_buf *fb; 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 */ fb = TAILQ_FIRST(&fc->fc_buf); count = 4; len = fwohci_buf_pktget(sc, &fb, &p, count); if (len <= 0) { DPRINTFN(1, ("fwohci_buf_input: no input for %d\n", fc->fc_ctx)); 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_READ_REQ_BLOCK: pkt->fp_hlen = 16; pkt->fp_dlen = 0; 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: #ifdef DIAGNOSTIC if (fc->fc_type == FWOHCI_CTX_ISO_MULTI) #endif { pkt->fp_hlen = 4; pkt->fp_dlen = pkt->fp_hdr[0] >> 16; DPRINTFN(5, ("[%d]", pkt->fp_dlen)); break; } #ifdef DIAGNOSTIC else { printf("fwohci_buf_input: bad tcode: STREAM_DATA\n"); return 0; } #endif default: pkt->fp_hlen = 12; pkt->fp_dlen = 0; break; } /* get header */ while (count < pkt->fp_hlen) { len = fwohci_buf_pktget(sc, &fb, &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_tcode != IEEE1394_TCODE_READ_REQ_BLOCK) pkt->fp_dlen = pkt->fp_hdr[3] >> 16; DPRINTFN(1, ("fwohci_buf_input: tcode=0x%x, hlen=%d, dlen=%d\n", pkt->fp_tcode, pkt->fp_hlen, pkt->fp_dlen)); /* get data */ count = 0; i = 0; while (count < pkt->fp_dlen) { len = fwohci_buf_pktget(sc, &fb, (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_dlen - count); return 0; } pkt->fp_iov[i++].iov_len = len; count += len; } pkt->fp_uio.uio_iovcnt = i; pkt->fp_uio.uio_resid = count; /* get trailer */ len = fwohci_buf_pktget(sc, &fb, (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; } int fwohci_buf_input_ppb(struct fwohci_softc *sc, struct fwohci_ctx *fc, struct fwohci_pkt *pkt) { caddr_t p; int len; struct fwohci_buf *fb; struct fwohci_desc *fd; if (fc->fc_type == FWOHCI_CTX_ISO_MULTI) { return fwohci_buf_input(sc, fc, pkt); } 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; for (fb = TAILQ_FIRST(&fc->fc_buf); ; fb = TAILQ_NEXT(fb, fb_list)) { if (fb == NULL) return 0; if (fb->fb_off == 0) break; } fd = fb->fb_desc; len = fd->fd_reqcount - fd->fd_rescount; if (len == 0) return 0; bus_dmamap_sync(sc->sc_dmat, fb->fb_dmamap, fb->fb_off, len, BUS_DMASYNC_POSTREAD); p = fb->fb_buf; fb->fb_off += roundup(len, 4); if (len < 8) { printf("fwohci_buf_input_ppb: malformed input 1: %d\n", len); return 0; } /* * get trailer first, may be bogus data unless status update * in descriptor is set. */ pkt->fp_trail = (u_int32_t *)p; *pkt->fp_trail = (*pkt->fp_trail & 0xffff) | (fd->fd_status << 16); pkt->fp_hdr[0] = ((u_int32_t *)p)[1]; pkt->fp_tcode = (pkt->fp_hdr[0] & 0x000000f0) >> 4; #ifdef DIAGNOSTIC if (pkt->fp_tcode != IEEE1394_TCODE_STREAM_DATA) { printf("fwohci_buf_input_ppb: bad tcode: 0x%x\n", pkt->fp_tcode); return 0; } #endif pkt->fp_hlen = 4; pkt->fp_dlen = pkt->fp_hdr[0] >> 16; p += 8; len -= 8; if (pkt->fp_dlen != len) { printf("fwohci_buf_input_ppb: malformed input 2: %d != %d\n", pkt->fp_dlen, len); return 0; } DPRINTFN(1, ("fwohci_buf_input_ppb: tcode=0x%x, hlen=%d, dlen=%d\n", pkt->fp_tcode, pkt->fp_hlen, pkt->fp_dlen)); pkt->fp_iov[0].iov_base = p; pkt->fp_iov[0].iov_len = len; pkt->fp_uio.uio_iovcnt = 0; pkt->fp_uio.uio_resid = len; return 1; } 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) { int isasync = key1 & OHCI_ASYNC_STREAM; key1 &= IEEE1394_ISOCH_MASK; 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->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) { DPRINTF(("fwohci_handler_set: no more free " "context\n")); return ENOMEM; } if ((fc = sc->sc_ctx_ir[j]) == NULL) { fwohci_ctx_alloc(sc, &fc, OHCI_BUF_IR_CNT, j, isasync ? FWOHCI_CTX_ISO_SINGLE : FWOHCI_CTX_ISO_MULTI); 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) { OHCI_SYNC_RX_DMA_WRITE(sc, fc->fc_ctx, OHCI_SUBREG_ContextControlClear, OHCI_CTXCTL_RUN); 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_WAITOK); 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; DPRINTFN(1, ("fwohci_handler_set: ctx %d, tcode %x, key 0x%x, 0x%x\n", fc->fc_ctx, tcode, key1, key2)); if (tcode == IEEE1394_TCODE_STREAM_DATA) { fwohci_ctx_init(sc, fc); DPRINTFN(1, ("fwohci_handler_set: SYNC desc %ld\n", (long)(TAILQ_FIRST(&fc->fc_buf)->fb_desc - sc->sc_desc))); OHCI_SYNC_RX_DMA_WRITE(sc, fc->fc_ctx, OHCI_SUBREG_ContextControlSet, OHCI_CTXCTL_RUN); } return 0; } /* * Asyncronous Receive Requests input frontend. */ 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; /* * Do not return if next packet is in the buffer, or the next * packet cannot be received until the next receive interrupt. */ 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; DPRINTFN(1, ("fwohci_arrq_input: no listener: tcode " "0x%x, addr=0x%04x %08x\n", pkt.fp_tcode, key1, key2)); } 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. */ 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; DPRINTFN(1, ("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)); 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; } } if (fh == NULL) DPRINTFN(1, ("fwohci_arrs_input: no listner\n")); } fwohci_buf_next(sc, fc); OHCI_ASYNC_DMA_WRITE(sc, fc->fc_ctx, OHCI_SUBREG_ContextControlSet, OHCI_CTXCTL_WAKE); } /* * Isochronous Receive input frontend. */ 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; #if DOUBLEBUF if (fc->fc_type == FWOHCI_CTX_ISO_MULTI) { struct fwohci_buf *fb; int i; u_int32_t reg; /* stop dma engine before read buffer */ reg = OHCI_SYNC_RX_DMA_READ(sc, fc->fc_ctx, OHCI_SUBREG_ContextControlClear); DPRINTFN(5, ("ir_input %08x =>", reg)); if (reg & OHCI_CTXCTL_RUN) { OHCI_SYNC_RX_DMA_WRITE(sc, fc->fc_ctx, OHCI_SUBREG_ContextControlClear, OHCI_CTXCTL_RUN); } DPRINTFN(5, (" %08x\n", OHCI_SYNC_RX_DMA_READ(sc, fc->fc_ctx, OHCI_SUBREG_ContextControlClear))); i = 0; while ((reg = OHCI_SYNC_RX_DMA_READ(sc, fc->fc_ctx, OHCI_SUBREG_ContextControlSet)) & OHCI_CTXCTL_ACTIVE) { delay(10); if (++i > 10000) { printf("cannot stop dma engine 0x%08x\n", reg); return; } } /* rotate dma buffer */ fb = TAILQ_FIRST(&fc->fc_buf2); OHCI_SYNC_RX_DMA_WRITE(sc, fc->fc_ctx, OHCI_SUBREG_CommandPtr, fb->fb_daddr | 1); /* start dma engine */ OHCI_SYNC_RX_DMA_WRITE(sc, fc->fc_ctx, OHCI_SUBREG_ContextControlSet, OHCI_CTXCTL_RUN); OHCI_CSR_WRITE(sc, OHCI_REG_IsoRecvIntEventClear, (1 << fc->fc_ctx)); } #endif while (fwohci_buf_input_ppb(sc, fc, &pkt)) { chan = (pkt.fp_hdr[0] & 0x00003f00) >> 8; tag = (pkt.fp_hdr[0] & 0x0000c000) >> 14; DPRINTFN(1, ("fwohci_ir_input: hdr 0x%08x, tcode 0x%0x, hlen %d" ", dlen %d\n", pkt.fp_hdr[0], pkt.fp_tcode, pkt.fp_hlen, pkt.fp_dlen)); 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; } sc->sc_isopktcnt.ev_count++; 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 (fh == NULL) { DPRINTFN(1, ("fwohci_ir_input: no handler\n")); } else { DPRINTFN(1, ("fwohci_ir_input: rcode %d\n", rcode)); } #endif } fwohci_buf_next(sc, fc); if (fc->fc_type == FWOHCI_CTX_ISO_SINGLE) { OHCI_SYNC_RX_DMA_WRITE(sc, fc->fc_ctx, OHCI_SUBREG_ContextControlSet, OHCI_CTXCTL_WAKE); } } /* * Asynchronous Transmit common routine. */ 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; #ifdef FW_DEBUG struct iovec *iov; #endif if ((sc->sc_nodeid & OHCI_NodeId_NodeNumber) == IEEE1394_BCAST_PHY_ID) /* We can't send anything during selfid duration */ return EAGAIN; #ifdef FW_DEBUG DPRINTFN(1, ("fwohci_at_output: tcode 0x%x, hlen %d, dlen %d", pkt->fp_tcode, pkt->fp_hlen, pkt->fp_dlen)); for (i = 0; i < pkt->fp_hlen/4; i++) DPRINTFN(2, ("%s%08x", i?" ":"\n ", pkt->fp_hdr[i])); DPRINTFN(2, ("$")); for (ndesc = 0, iov = pkt->fp_iov; ndesc < pkt->fp_uio.uio_iovcnt; ndesc++, iov++) { for (i = 0; i < iov->iov_len; i++) DPRINTFN(2, ("%s%02x", (i%32)?((i%4)?"":" "):"\n ", ((u_int8_t *)iov->iov_base)[i])); DPRINTFN(2, ("$")); } DPRINTFN(1, ("\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) { #ifdef __NetBSD__ M_COPY_PKTHDR(m0, pkt->fp_m); #else M_DUP_PKTHDR(m0, pkt->fp_m); #endif } 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)); m->m_len = len; 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; fb = malloc(sizeof(*fb), M_DEVBUF, M_WAITOK); 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; fb->fb_statuscb = pkt->fp_statuscb; fb->fb_statusarg = pkt->fp_statusarg; if (ndesc > 2) { if ((error = bus_dmamap_create(sc->sc_dmat, pkt->fp_dlen, ndesc, PAGE_SIZE, 0, BUS_DMA_WAITOK, &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_WAITOK); else error = bus_dmamap_load_uio(sc->sc_dmat, fb->fb_dmamap, &pkt->fp_uio, BUS_DMA_WAITOK); 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 DPRINTFN(1, ("fwohci_at_output: desc %ld", (long)(fb->fb_desc - sc->sc_desc))); for (i = 0; i < ndesc * 4; i++) DPRINTFN(2, ("%s%08x", i&7?" ":"\n ", ((u_int32_t *)fb->fb_desc)[i])); DPRINTFN(1, ("\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); pkt->fp_m = NULL; return 0; } void fwohci_at_done(struct fwohci_softc *sc, struct fwohci_ctx *fc, int force) { struct fwohci_buf *fb; struct fwohci_desc *fd; struct fwohci_pkt pkt; int i; while ((fb = TAILQ_FIRST(&fc->fc_buf)) != NULL) { fd = fb->fb_desc; #ifdef FW_DEBUG DPRINTFN(1, ("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++) DPRINTFN(2, ("%s%08x", i&7?" ":"\n ", ((u_int32_t *)fd)[i])); DPRINTFN(1, ("\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; DELAY(10); } } if (fb->fb_statuscb) { memset(&pkt, 0, sizeof(pkt)); pkt.fp_status = fd->fd_status; memcpy(pkt.fp_hdr, fd + 1, sizeof(pkt.fp_hdr[0])); /* Indicate this is just returning the status bits. */ pkt.fp_tcode = -1; (*fb->fb_statuscb)(sc, fb->fb_statusarg, &pkt); fb->fb_statuscb = NULL; fb->fb_statusarg = NULL; } 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) { (*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. */ 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 */ /* * Retrieve Global UID from GUID ROM */ int fwohci_guidrom_init(struct fwohci_softc *sc) { int i, n, off; u_int32_t val1, val2; /* Extract the Global UID */ val1 = OHCI_CSR_READ(sc, OHCI_REG_GUIDHi); val2 = OHCI_CSR_READ(sc, OHCI_REG_GUIDLo); if (val1 != 0 || val2 != 0) { sc->sc_sc1394.sc1394_guid[0] = (val1 >> 24) & 0xff; sc->sc_sc1394.sc1394_guid[1] = (val1 >> 16) & 0xff; sc->sc_sc1394.sc1394_guid[2] = (val1 >> 8) & 0xff; sc->sc_sc1394.sc1394_guid[3] = (val1 >> 0) & 0xff; sc->sc_sc1394.sc1394_guid[4] = (val2 >> 24) & 0xff; sc->sc_sc1394.sc1394_guid[5] = (val2 >> 16) & 0xff; sc->sc_sc1394.sc1394_guid[6] = (val2 >> 8) & 0xff; sc->sc_sc1394.sc1394_guid[7] = (val2 >> 0) & 0xff; } else { val1 = OHCI_CSR_READ(sc, OHCI_REG_Version); if ((val1 & OHCI_Version_GUID_ROM) == 0) return -1; OHCI_CSR_WRITE(sc, OHCI_REG_Guid_Rom, OHCI_Guid_AddrReset); for (i = 0; i < OHCI_LOOP; i++) { val1 = OHCI_CSR_READ(sc, OHCI_REG_Guid_Rom); if (!(val1 & OHCI_Guid_AddrReset)) break; DELAY(10); } off = OHCI_BITVAL(val1, OHCI_Guid_MiniROM) + 4; val2 = 0; for (n = 0; n < off + sizeof(sc->sc_sc1394.sc1394_guid); n++) { OHCI_CSR_WRITE(sc, OHCI_REG_Guid_Rom, OHCI_Guid_RdStart); for (i = 0; i < OHCI_LOOP; i++) { val1 = OHCI_CSR_READ(sc, OHCI_REG_Guid_Rom); if (!(val1 & OHCI_Guid_RdStart)) break; DELAY(10); } if (n < off) continue; val1 = OHCI_BITVAL(val1, OHCI_Guid_RdData); sc->sc_sc1394.sc1394_guid[n - off] = val1; val2 |= val1; } if (val2 == 0) return -1; } return 0; } /* * 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 */) 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; } void fwohci_configrom_init(struct fwohci_softc *sc) { int i, val; 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 */ #ifdef __NetBSD__ CFR_PUT_DATA4(&cfr, 'N', 'e', 't', 'B'); CFR_PUT_DATA4(&cfr, 'S', 'D', 0x00, 0x00); #else CFR_PUT_DATA4(&cfr, 'O', 'p', 'e', 'n'); CFR_PUT_DATA4(&cfr, 'B', 'S', 'D', 0x00); #endif 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_PUT_REFER(&cfr, 0x95, 8); /* Unit location */ 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); CFR_START_UNIT(&cfr, 8); /* Spec's valid addr range. */ CFR_PUT_DATA1(&cfr, FW_FIFO_HI); CFR_PUT_DATA1(&cfr, (FW_FIFO_LO | 0x1)); CFR_PUT_DATA1(&cfr, FW_FIFO_HI); CFR_PUT_DATA1(&cfr, FW_FIFO_LO); 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, 9); /* textual descriptor offset */ CFR_PUT_VALUE(&cfr, 0x13, 0x000002); /* unit sw version */ /* XXX: TBA by IANA */ CFR_PUT_REFER(&cfr, 0x81, 10); /* textual descriptor offset */ CFR_PUT_REFER(&cfr, 0x95, 11); /* Unit location */ CFR_END_UNIT(&cfr); CFR_START_UNIT(&cfr, 9); 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, 10); 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); CFR_START_UNIT(&cfr, 11); /* Spec's valid addr range. */ CFR_PUT_DATA1(&cfr, FW_FIFO_HI); CFR_PUT_DATA1(&cfr, (FW_FIFO_LO | 0x1)); CFR_PUT_DATA1(&cfr, FW_FIFO_HI); CFR_PUT_DATA1(&cfr, FW_FIFO_LO); CFR_END_UNIT(&cfr); #endif /* INET6 */ fb->fb_off = cfr.ptr - hdr; #ifdef FW_DEBUG DPRINTF(("%s: Config ROM:", sc->sc_sc1394.sc1394_dev.dv_xname)); for (i = 0; i < fb->fb_off; i++) DPRINTF(("%s%08x", i&7?" ":"\n ", hdr[i])); DPRINTF(("\n")); #endif /* FW_DEBUG */ /* * Make network byte order for DMA */ for (i = 0; i < fb->fb_off; 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); /* This register is only valid on OHCI 1.1. */ val = OHCI_CSR_READ(sc, OHCI_REG_Version); if ((OHCI_Version_GET_Version(val) == 1) && (OHCI_Version_GET_Revision(val) == 1)) OHCI_CSR_WRITE(sc, OHCI_REG_HCControlSet, OHCI_HCControl_BIBImageValid); /* Just allow quad reads of the rom. */ for (i = 0; i < fb->fb_off; i++) fwohci_handler_set(sc, IEEE1394_TCODE_READ_REQ_QUAD, CSR_BASE_HI, CSR_BASE_LO + CSR_CONFIG_ROM + (i * 4), fwohci_configrom_input, NULL); } int fwohci_configrom_input(struct fwohci_softc *sc, void *arg, struct fwohci_pkt *pkt) { struct fwohci_pkt res; u_int32_t loc, *rom; /* This will be used as an array index so size accordingly. */ loc = pkt->fp_hdr[2] - (CSR_BASE_LO + CSR_CONFIG_ROM); if ((loc & 0x03) != 0) { /* alignment error */ return IEEE1394_RCODE_ADDRESS_ERROR; } else loc /= 4; rom = (u_int32_t *)sc->sc_buf_cnfrom.fb_buf; DPRINTFN(1, ("fwohci_configrom_input: ConfigRom[0x%04x]: 0x%08x\n", loc, ntohl(rom[loc]))); memset(&res, 0, sizeof(res)); res.fp_hdr[3] = rom[loc]; fwohci_atrs_output(sc, IEEE1394_RCODE_COMPLETE, pkt, &res); return -1; } /* * SelfID buffer (no DMA context) */ void fwohci_selfid_init(struct fwohci_softc *sc) { struct fwohci_buf *fb; fb = &sc->sc_buf_selfid; #ifdef DIAGNOSTIC if ((fb->fb_dmamap->dm_segs[0].ds_addr & 0x7ff) != 0) panic("fwohci_selfid_init: not aligned: %ld (%ld) %p", (unsigned long)fb->fb_dmamap->dm_segs[0].ds_addr, (unsigned long)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); } int fwohci_selfid_input(struct fwohci_softc *sc) { int i; u_int32_t count, val, gen; u_int32_t *buf; buf = (u_int32_t *)sc->sc_buf_selfid.fb_buf; val = OHCI_CSR_READ(sc, OHCI_REG_SelfIDCount); again: if (val & OHCI_SelfID_Error) { printf("%s: SelfID Error\n", sc->sc_sc1394.sc1394_dev.dv_xname); return -1; } count = OHCI_BITVAL(val, OHCI_SelfID_Size); bus_dmamap_sync(sc->sc_dmat, sc->sc_buf_selfid.fb_dmamap, 0, count << 2, BUS_DMASYNC_POSTREAD); gen = OHCI_BITVAL(buf[0], OHCI_SelfID_Gen); #ifdef FW_DEBUG DPRINTFN(1, ("%s: SelfID: 0x%08x", sc->sc_sc1394.sc1394_dev.dv_xname, val)); for (i = 0; i < count; i++) DPRINTFN(2, ("%s%08x", i&7?" ":"\n ", buf[i])); DPRINTFN(1, ("\n")); #endif /* FW_DEBUG */ for (i = 1; i < count; i += 2) { if (buf[i] != ~buf[i + 1]) break; 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; } val = OHCI_CSR_READ(sc, OHCI_REG_SelfIDCount); if (OHCI_BITVAL(val, OHCI_SelfID_Gen) != gen) { if (OHCI_BITVAL(val, OHCI_SelfID_Gen) != OHCI_BITVAL(buf[0], OHCI_SelfID_Gen)) goto again; DPRINTF(("%s: SelfID Gen mismatch (%d, %d)\n", sc->sc_sc1394.sc1394_dev.dv_xname, gen, OHCI_BITVAL(val, OHCI_SelfID_Gen))); return -1; } if (i != count) { printf("%s: SelfID corrupted (%d, 0x%08x, 0x%08x)\n", sc->sc_sc1394.sc1394_dev.dv_xname, i, buf[i], buf[i + 1]); #if 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; } else #endif return -1; } 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; DPRINTF(("%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)); 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. */ 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*/ } 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; } DPRINTFN(1, ("fwohci_csr_input: CSR[0x%04x]: 0x%08x", reg, *(u_int32_t *)(&sc->sc_csr[reg]))); if (pkt->fp_tcode == IEEE1394_TCODE_WRITE_REQ_QUAD) { DPRINTFN(1, (" -> 0x%08x\n", ntohl(*(u_int32_t *)pkt->fp_iov[0].iov_base))); *(u_int32_t *)&sc->sc_csr[reg] = ntohl(*(u_int32_t *)pkt->fp_iov[0].iov_base); } else { DPRINTFN(1, ("\n")); 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). * * Track old mappings and simply update their devices with the new id's when * they match an existing EUI. This allows proper renumeration of the bus. */ void fwohci_uid_collect(struct fwohci_softc *sc) { int i; struct fwohci_uidtbl *fu; struct ieee1394_softc *iea; LIST_FOREACH(iea, &sc->sc_nodelist, sc1394_node) iea->sc1394_node_id = 0xffff; if (sc->sc_uidtbl != NULL) free(sc->sc_uidtbl, M_DEVBUF); #ifdef M_ZERO sc->sc_uidtbl = malloc(sizeof(*fu) * (sc->sc_rootid + 1), M_DEVBUF, M_NOWAIT|M_ZERO); /* XXX M_WAITOK requires locks */ #else sc->sc_uidtbl = malloc(sizeof(*fu) * (sc->sc_rootid + 1), M_DEVBUF, M_NOWAIT); /* XXX M_WAITOK requires locks */ bzero(sc->sc_uidtbl, sizeof(*fu) * (sc->sc_rootid + 1)); #endif if (sc->sc_uidtbl == NULL) return; 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; iea = (struct ieee1394_softc *)sc->sc_sc1394.sc1394_if; if (iea) { iea->sc1394_node_id = i; DPRINTF(("%s: Updating nodeid to %d\n", iea->sc1394_dev.dv_xname, iea->sc1394_node_id)); } } else { fu->fu_valid = 0; fwohci_uid_req(sc, i); } } if (sc->sc_rootid == 0) fwohci_check_nodes(sc); } void fwohci_uid_req(struct fwohci_softc *sc, int phyid) { struct fwohci_pkt pkt; memset(&pkt, 0, sizeof(pkt)); 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 | phyid) << 16) | CSR_BASE_HI; pkt.fp_hdr[2] = CSR_BASE_LO + CSR_CONFIG_ROM + 12; fwohci_handler_set(sc, IEEE1394_TCODE_READ_RESP_QUAD, phyid, 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, phyid, 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); } int fwohci_uid_input(struct fwohci_softc *sc, void *arg, struct fwohci_pkt *res) { struct fwohci_uidtbl *fu; struct ieee1394_softc *iea; struct ieee1394_attach_args fwa; int i, n, done, rcode, found; found = 0; 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 (fu->fu_valid == 0x3) DPRINTFN(1, ("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 if (fu->fu_valid == 0x3) { LIST_FOREACH(iea, &sc->sc_nodelist, sc1394_node) if (memcmp(iea->sc1394_guid, fu->fu_uid, 8) == 0) { found = 1; iea->sc1394_node_id = n; DPRINTF(("%s: Updating nodeid to %d\n", iea->sc1394_dev.dv_xname, iea->sc1394_node_id)); break; } if (!found) { strcpy(fwa.name, "fwnode"); memcpy(fwa.uid, fu->fu_uid, 8); fwa.nodeid = n; fwa.read = fwohci_read; fwa.write = fwohci_write; fwa.inreg = fwohci_inreg; fwa.unreg = fwohci_unreg; iea = (struct ieee1394_softc *) config_found_sm(&sc->sc_sc1394.sc1394_dev, &fwa, fwohci_print, fwohci_submatch); if (iea != NULL) LIST_INSERT_HEAD(&sc->sc_nodelist, iea, sc1394_node); } } done = 1; for (i = 0; i < sc->sc_rootid + 1; i++) { fu = &sc->sc_uidtbl[i]; if (fu->fu_valid != 0x3) { done = 0; break; } } if (done) fwohci_check_nodes(sc); return 0; } void fwohci_check_nodes(struct fwohci_softc *sc) { struct device *detach = NULL; struct ieee1394_softc *iea; LIST_FOREACH(iea, &sc->sc_nodelist, sc1394_node) { /* * Have to defer detachment until the next * loop iteration since config_detach * free's the softc and the loop iterator * needs data from the softc to move * forward. */ if (detach) { config_detach(detach, 0); detach = NULL; } if (iea->sc1394_node_id == 0xffff) { detach = (struct device *)iea; LIST_REMOVE(iea, sc1394_node); } } if (detach) config_detach(detach, 0); } 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) { 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 <= sc->sc_rootid; n++, fu++) { if (fu->fu_valid == 0x3 && memcmp(fu->fu_uid, uid, 8) == 0) return n; } if (memcmp(uid, bcast, sizeof(bcast)) == 0) return IEEE1394_BCAST_PHY_ID; for (n = 0, fu = sc->sc_uidtbl; n <= sc->sc_rootid; n++, fu++) { if (fu->fu_valid != 0x3) { /* * XXX: need timer before retransmission */ fwohci_uid_req(sc, n); } } return -1; } /* * functions to support network interface */ 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; fwohci_handler_set(sc, IEEE1394_TCODE_WRITE_REQ_BLOCK, offhi, offlo, handler ? fwohci_if_input : NULL, handler); fwohci_handler_set(sc, IEEE1394_TCODE_STREAM_DATA, (sc->sc_csr[CSR_SB_BROADCAST_CHANNEL] & IEEE1394_ISOCH_MASK) | OHCI_ASYNC_STREAM, IEEE1394_TAG_GASP, handler ? fwohci_if_input : NULL, handler); return 0; } 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 int i; DPRINTFN(1, ("fwohci_if_input: tcode=0x%x, dlen=%d", pkt->fp_tcode, pkt->fp_dlen)); for (i = 0; i < pkt->fp_hlen/4; i++) DPRINTFN(2, ("%s%08x", i?" ":"\n ", pkt->fp_hdr[i])); DPRINTFN(2, ("$")); 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++) DPRINTFN(2, ("%s%02x", (i%32)?((i%4)?"":" "):"\n ", ((u_int8_t *)iov->iov_base)[i])); DPRINTFN(2, ("$")); } DPRINTFN(1, ("\n")); #endif /* FW_DEBUG */ len = pkt->fp_dlen; MGETHDR(m, M_DONTWAIT, MT_DATA); if (m == NULL) return IEEE1394_RCODE_COMPLETE; m->m_len = 16; if (len + m->m_len > MHLEN) { MCLGET(m, M_DONTWAIT); if ((m->m_flags & M_EXT) == 0) { m_freem(m); return IEEE1394_RCODE_COMPLETE; } } 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); fwohci_uid_req(sc, n); 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; } int fwohci_if_input_iso(struct fwohci_softc *sc, void *arg, struct fwohci_pkt *pkt) { int n, len; int chan, tag; struct mbuf *m; struct iovec *iov; void (*handler)(struct device *, struct mbuf *) = arg; #ifdef FW_DEBUG int i; #endif chan = (pkt->fp_hdr[0] & 0x00003f00) >> 8; tag = (pkt->fp_hdr[0] & 0x0000c000) >> 14; #ifdef FW_DEBUG DPRINTFN(1, ("fwohci_if_input_iso: " "tcode=0x%x, chan=%d, tag=%x, dlen=%d", pkt->fp_tcode, chan, tag, pkt->fp_dlen)); for (i = 0; i < pkt->fp_hlen/4; i++) DPRINTFN(2, ("%s%08x", i?" ":"\n\t", pkt->fp_hdr[i])); DPRINTFN(2, ("$")); 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++) DPRINTFN(2, ("%s%02x", (i%32)?((i%4)?"":" "):"\n\t", ((u_int8_t *)iov->iov_base)[i])); DPRINTFN(2, ("$")); } DPRINTFN(2, ("\n")); #endif /* FW_DEBUG */ len = pkt->fp_dlen; MGETHDR(m, M_DONTWAIT, MT_DATA); if (m == NULL) return IEEE1394_RCODE_COMPLETE; m->m_len = 16; if (m->m_len + len > MHLEN) { MCLGET(m, M_DONTWAIT); if ((m->m_flags & M_EXT) == 0) { m_freem(m); return IEEE1394_RCODE_COMPLETE; } } m->m_flags |= M_BCAST; if (tag == IEEE1394_TAG_GASP) { 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); 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); } mtod(m, u_int8_t *)[14] = chan; mtod(m, u_int8_t *)[15] = tag; 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; } 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 n, error, spd, hdrlen, maxrec; #ifdef FW_DEBUG struct mbuf *m; #endif 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 DPRINTFN(2, ("packet:")); for (m = m0; m != NULL; m = m->m_next) { for (n = 0; n < m->m_len; n++) DPRINTFN(2, ("%s%02x", (n%32)? ((n%4)?"":" "):"\n ", mtod(m, u_int8_t *)[n])); DPRINTFN(2, ("$")); } DPRINTFN(2, ("\n")); #endif error = EHOSTUNREACH; goto end; } maxrec = 2 << p[8]; spd = p[9]; hdrlen = 0; } if (spd > sc->sc_sc1394.sc1394_link_speed) { DPRINTF(("fwohci_if_output: spd (%d) is faster than %d\n", spd, sc->sc_sc1394.sc1394_link_speed)); spd = sc->sc_sc1394.sc1394_link_speed; } if (maxrec > (512 << spd)) { DPRINTF(("fwohci_if_output: maxrec (%d) is larger for spd (%d)" "\n", maxrec, spd)); maxrec = 512 << spd; } while (maxrec > sc->sc_sc1394.sc1394_max_receive) { DPRINTF(("fwohci_if_output: maxrec (%d) is larger than" " %d\n", maxrec, sc->sc_sc1394.sc1394_max_receive)); maxrec >>= 1; } if (maxrec < 512) { DPRINTF(("fwohci_if_output: maxrec (%d) is smaller than " "minimum\n", maxrec)); maxrec = 512; } m_adj(m0, 16 - hdrlen); if (m0->m_pkthdr.len > maxrec) { DPRINTF(("fwohci_if_output: packet too big: hdr %d, pktlen " "%d, maxrec %d\n", hdrlen, m0->m_pkthdr.len, maxrec)); 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; 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); m0 = pkt.fp_m; end: if (m0 != NULL) { if (callback) (*callback)(sc->sc_sc1394.sc1394_if, m0); else m_freem(m0); } return error; } /* * High level routines to provide abstraction to attaching layers to * send/receive data. */ /* * These break down into 4 routines as follows: * * int fwohci_read(struct ieee1394_abuf *) * * This routine will attempt to read a region from the requested node. * A callback must be provided which will be called when either the completed * read is done or an unrecoverable error occurs. This is mainly a convenience * routine since it will encapsulate retrying a region as quadlet vs. block * reads and recombining all the returned data. This could also be done with a * series of write/inreg's for each packet sent. * * int fwohci_write(struct ieee1394_abuf *) * * The work horse main entry point for putting packets on the bus. This is the * generalized interface for fwnode/etc code to put packets out onto the bus. * It accepts all standard ieee1394 tcodes (XXX: only a few today) and * optionally will callback via a func pointer to the calling code with the * resulting ACK code from the packet. If the ACK code is to be ignored (i.e. * no cb) then the write routine will take care of free'ing the abuf since the * fwnode/etc code won't have any knowledge of when to do this. This allows for * simple one-off packets to be sent from the upper-level code without worrying * about a callback for cleanup. * * int fwohci_inreg(struct ieee1394_abuf *, int) * * This is very simple. It evals the abuf passed in and registers an internal * handler as the callback for packets received for that operation. * The integer argument specifies whether on a block read/write operation to * allow sub-regions to be read/written (in block form) as well. * * XXX: This whole structure needs to be redone as a list of regions and * operations allowed on those regions. * * int fwohci_unreg(struct ieee1394_abuf *, int) * * This simply unregisters the respective callback done via inreg for items * which only need to register an area for a one-time operation (like a status * buffer a remote node will write to when the current operation is done). The * int argument specifies the same behavior as inreg, except in reverse (i.e. * it unregisters). */ int fwohci_read(struct ieee1394_abuf *ab) { struct fwohci_pkt pkt; struct ieee1394_softc *sc = ab->ab_req; struct fwohci_softc *psc = (struct fwohci_softc *)sc->sc1394_dev.dv_parent; struct fwohci_cb *fcb; u_int32_t high, lo; int rv, tcode; /* Have to have a callback when reading. */ if (ab->ab_cb == NULL) return -1; fcb = malloc(sizeof(struct fwohci_cb), M_DEVBUF, M_WAITOK); fcb->ab = ab; fcb->count = 0; fcb->abuf_valid = 1; high = ((ab->ab_addr & 0x0000ffff00000000) >> 32); lo = (ab->ab_addr & 0x00000000ffffffff); memset(&pkt, 0, sizeof(pkt)); pkt.fp_hdr[1] = ((0xffc0 | ab->ab_req->sc1394_node_id) << 16) | high; pkt.fp_hdr[2] = lo; pkt.fp_dlen = 0; if (ab->ab_length == 4) { pkt.fp_tcode = IEEE1394_TCODE_READ_REQ_QUAD; tcode = IEEE1394_TCODE_READ_RESP_QUAD; pkt.fp_hlen = 12; } else { pkt.fp_tcode = IEEE1394_TCODE_READ_REQ_BLOCK; pkt.fp_hlen = 16; tcode = IEEE1394_TCODE_READ_RESP_BLOCK; pkt.fp_hdr[3] = (ab->ab_length << 16); } pkt.fp_hdr[0] = 0x00000100 | (sc->sc1394_link_speed << 16) | (psc->sc_tlabel << 10) | (pkt.fp_tcode << 4); pkt.fp_statusarg = fcb; pkt.fp_statuscb = fwohci_read_resp; rv = fwohci_handler_set(psc, tcode, ab->ab_req->sc1394_node_id, psc->sc_tlabel, fwohci_read_resp, fcb); if (rv) return rv; rv = fwohci_at_output(psc, psc->sc_ctx_atrq, &pkt); if (rv) fwohci_handler_set(psc, tcode, ab->ab_req->sc1394_node_id, psc->sc_tlabel, NULL, NULL); psc->sc_tlabel = (psc->sc_tlabel + 1) & 0x3f; fcb->count = 1; return rv; } int fwohci_write(struct ieee1394_abuf *ab) { struct fwohci_pkt pkt; struct ieee1394_softc *sc = ab->ab_req; struct fwohci_softc *psc = (struct fwohci_softc *)sc->sc1394_dev.dv_parent; u_int32_t high, lo; int rv; if (ab->ab_length > IEEE1394_MAX_REC(sc->sc1394_max_receive)) { DPRINTF(("Packet too large: %d\n", ab->ab_length)); return E2BIG; } if (ab->ab_data && ab->ab_uio) panic("Can't call with uio and data set\n"); if ((ab->ab_data == NULL) && (ab->ab_uio == NULL)) panic("One of either ab_data or ab_uio must be set\n"); memset(&pkt, 0, sizeof(pkt)); pkt.fp_tcode = ab->ab_tcode; if (ab->ab_data) { pkt.fp_uio.uio_iov = pkt.fp_iov; pkt.fp_uio.uio_segflg = UIO_SYSSPACE; pkt.fp_uio.uio_rw = UIO_WRITE; } else memcpy(&pkt.fp_uio, ab->ab_uio, sizeof(struct uio)); pkt.fp_statusarg = ab; pkt.fp_statuscb = fwohci_write_ack; switch (ab->ab_tcode) { case IEEE1394_TCODE_WRITE_RESP: pkt.fp_hlen = 12; case IEEE1394_TCODE_READ_RESP_QUAD: case IEEE1394_TCODE_READ_RESP_BLOCK: if (!pkt.fp_hlen) pkt.fp_hlen = 16; high = ab->ab_retlen; ab->ab_retlen = 0; lo = 0; pkt.fp_hdr[0] = 0x00000100 | (sc->sc1394_link_speed << 16) | (ab->ab_tlabel << 10) | (pkt.fp_tcode << 4); break; default: pkt.fp_hlen = 16; high = ((ab->ab_addr & 0x0000ffff00000000) >> 32); lo = (ab->ab_addr & 0x00000000ffffffff); pkt.fp_hdr[0] = 0x00000100 | (sc->sc1394_link_speed << 16) | (psc->sc_tlabel << 10) | (pkt.fp_tcode << 4); break; } pkt.fp_hdr[1] = ((0xffc0 | ab->ab_req->sc1394_node_id) << 16) | high; pkt.fp_hdr[2] = lo; if (pkt.fp_hlen == 16) { if (ab->ab_length == 4) { pkt.fp_hdr[3] = ab->ab_data[0]; pkt.fp_dlen = 0; } else { pkt.fp_hdr[3] = (ab->ab_length << 16); pkt.fp_dlen = ab->ab_length; if (ab->ab_data) { pkt.fp_uio.uio_iovcnt = 1; pkt.fp_uio.uio_resid = ab->ab_length; pkt.fp_iov[0].iov_base = ab->ab_data; pkt.fp_iov[0].iov_len = ab->ab_length; } } } switch (ab->ab_tcode) { case IEEE1394_TCODE_WRITE_RESP: case IEEE1394_TCODE_READ_RESP_QUAD: case IEEE1394_TCODE_READ_RESP_BLOCK: rv = fwohci_at_output(psc, psc->sc_ctx_atrs, &pkt); break; default: rv = fwohci_at_output(psc, psc->sc_ctx_atrq, &pkt); break; } return rv; } int fwohci_read_resp(struct fwohci_softc *sc, void *arg, struct fwohci_pkt *pkt) { struct fwohci_cb *fcb = arg; struct ieee1394_abuf *ab = fcb->ab; struct fwohci_pkt newpkt; u_int32_t *cur, high, lo; int i, tcode, rcode, status, rv; /* * Both the ACK handling and normal response callbacks are handled here. * The main reason for this is the various error conditions that can * occur trying to block read some areas and the ways that gets reported * back to calling station. This is a variety of ACK codes, responses, * etc which makes it much more difficult to process if both aren't * handled here. */ /* Check for status packet. */ if (pkt->fp_tcode == -1) { status = pkt->fp_status & OHCI_DESC_STATUS_ACK_MASK; rcode = -1; tcode = (pkt->fp_hdr[0] >> 4) & 0xf; if ((status != OHCI_CTXCTL_EVENT_ACK_COMPLETE) && (status != OHCI_CTXCTL_EVENT_ACK_PENDING)) DPRINTFN(2, ("Got status packet: 0x%02x\n", (unsigned int)status)); fcb->count--; /* * Got all the ack's back and the buffer is invalid (i.e. the * callback has been called. Clean up. */ if (fcb->abuf_valid == 0) { if (fcb->count == 0) free(fcb, M_DEVBUF); return IEEE1394_RCODE_COMPLETE; } } else { status = -1; tcode = pkt->fp_tcode; rcode = (pkt->fp_hdr[1] & 0x0000f000) >> 12; } /* * Some area's (like the config rom want to be read as quadlets only. * * The current ideas to try are: * * Got an ACK_TYPE_ERROR on a block read. * * Got either RCODE_TYPE or RCODE_ADDRESS errors in a block read * response. * * In all cases construct a new packet for a quadlet read and let * mutli_resp handle the iteration over the space. */ if (((status == OHCI_CTXCTL_EVENT_ACK_TYPE_ERROR) && (tcode == IEEE1394_TCODE_READ_REQ_BLOCK)) || (((rcode == IEEE1394_RCODE_TYPE_ERROR) || (rcode == IEEE1394_RCODE_ADDRESS_ERROR)) && (tcode == IEEE1394_TCODE_READ_RESP_BLOCK))) { /* Read the area in quadlet chunks (internally track this). */ memset(&newpkt, 0, sizeof(newpkt)); high = ((ab->ab_addr & 0x0000ffff00000000) >> 32); lo = (ab->ab_addr & 0x00000000ffffffff); newpkt.fp_tcode = IEEE1394_TCODE_READ_REQ_QUAD; newpkt.fp_hlen = 12; newpkt.fp_dlen = 0; newpkt.fp_hdr[1] = ((0xffc0 | ab->ab_req->sc1394_node_id) << 16) | high; newpkt.fp_hdr[2] = lo; newpkt.fp_hdr[0] = 0x00000100 | (sc->sc_tlabel << 10) | (newpkt.fp_tcode << 4); rv = fwohci_handler_set(sc, IEEE1394_TCODE_READ_RESP_QUAD, ab->ab_req->sc1394_node_id, sc->sc_tlabel, fwohci_read_multi_resp, fcb); if (rv) { (*ab->ab_cb)(ab, -1); goto cleanup; } newpkt.fp_statusarg = fcb; newpkt.fp_statuscb = fwohci_read_resp; rv = fwohci_at_output(sc, sc->sc_ctx_atrq, &newpkt); if (rv) { fwohci_handler_set(sc, IEEE1394_TCODE_READ_RESP_QUAD, ab->ab_req->sc1394_node_id, sc->sc_tlabel, NULL, NULL); (*ab->ab_cb)(ab, -1); goto cleanup; } fcb->count++; sc->sc_tlabel = (sc->sc_tlabel + 1) & 0x3f; return IEEE1394_RCODE_COMPLETE; } else if ((rcode != -1) || ((status != -1) && (status != OHCI_CTXCTL_EVENT_ACK_COMPLETE) && (status != OHCI_CTXCTL_EVENT_ACK_PENDING))) { /* * Recombine all the iov data into 1 chunk for higher * level code. */ if (rcode != -1) { cur = ab->ab_data; for (i = 0; i < pkt->fp_uio.uio_iovcnt; i++) { /* * Make sure and don't exceed the buffer * allocated for return. */ if ((ab->ab_retlen + pkt->fp_iov[i].iov_len) > ab->ab_length) { memcpy(cur, pkt->fp_iov[i].iov_base, (ab->ab_length - ab->ab_retlen)); ab->ab_retlen = ab->ab_length; break; } memcpy(cur, pkt->fp_iov[i].iov_base, pkt->fp_iov[i].iov_len); cur += pkt->fp_iov[i].iov_len; ab->ab_retlen += pkt->fp_iov[i].iov_len; } } if (status != -1) /* XXX: Need a complete tlabel interface. */ for (i = 0; i < 64; i++) fwohci_handler_set(sc, IEEE1394_TCODE_READ_RESP_QUAD, ab->ab_req->sc1394_node_id, i, NULL, NULL); (*ab->ab_cb)(ab, rcode); goto cleanup; } else /* Good ack packet. */ return IEEE1394_RCODE_COMPLETE; /* Can't get here unless ab->ab_cb has been called. */ cleanup: fcb->abuf_valid = 0; if (fcb->count == 0) free(fcb, M_DEVBUF); return IEEE1394_RCODE_COMPLETE; } int fwohci_read_multi_resp(struct fwohci_softc *sc, void *arg, struct fwohci_pkt *pkt) { struct fwohci_cb *fcb = arg; struct ieee1394_abuf *ab = fcb->ab; struct fwohci_pkt newpkt; u_int32_t high, lo; int rcode, rv; /* * Bad return codes from the wire, just return what's already in the * buf. */ /* Make sure a response packet didn't arrive after a bad ACK. */ if (fcb->abuf_valid == 0) return IEEE1394_RCODE_COMPLETE; rcode = (pkt->fp_hdr[1] & 0x0000f000) >> 12; if (rcode) { (*ab->ab_cb)(ab, rcode); goto cleanup; } if ((ab->ab_retlen + pkt->fp_iov[0].iov_len) > ab->ab_length) { memcpy(((char *)ab->ab_data + ab->ab_retlen), pkt->fp_iov[0].iov_base, (ab->ab_length - ab->ab_retlen)); ab->ab_retlen = ab->ab_length; } else { memcpy(((char *)ab->ab_data + ab->ab_retlen), pkt->fp_iov[0].iov_base, 4); ab->ab_retlen += 4; } /* Still more, loop and read 4 more bytes. */ if (ab->ab_retlen < ab->ab_length) { memset(&newpkt, 0, sizeof(newpkt)); high = ((ab->ab_addr & 0x0000ffff00000000) >> 32); lo = (ab->ab_addr & 0x00000000ffffffff) + ab->ab_retlen; newpkt.fp_tcode = IEEE1394_TCODE_READ_REQ_QUAD; newpkt.fp_hlen = 12; newpkt.fp_dlen = 0; newpkt.fp_hdr[1] = ((0xffc0 | ab->ab_req->sc1394_node_id) << 16) | high; newpkt.fp_hdr[2] = lo; newpkt.fp_hdr[0] = 0x00000100 | (sc->sc_tlabel << 10) | (newpkt.fp_tcode << 4); newpkt.fp_statusarg = fcb; newpkt.fp_statuscb = fwohci_read_resp; /* * Bad return code. Just give up and return what's * come in now. */ rv = fwohci_handler_set(sc, IEEE1394_TCODE_READ_RESP_QUAD, ab->ab_req->sc1394_node_id, sc->sc_tlabel, fwohci_read_multi_resp, fcb); if (rv) (*ab->ab_cb)(ab, -1); else { rv = fwohci_at_output(sc, sc->sc_ctx_atrq, &newpkt); if (rv) { fwohci_handler_set(sc, IEEE1394_TCODE_READ_RESP_QUAD, ab->ab_req->sc1394_node_id, sc->sc_tlabel, NULL, NULL); (*ab->ab_cb)(ab, -1); } else { sc->sc_tlabel = (sc->sc_tlabel + 1) & 0x3f; fcb->count++; return IEEE1394_RCODE_COMPLETE; } } } else (*ab->ab_cb)(ab, IEEE1394_RCODE_COMPLETE); cleanup: /* Can't get here unless ab_cb has been called. */ fcb->abuf_valid = 0; if (fcb->count == 0) free(fcb, M_DEVBUF); return IEEE1394_RCODE_COMPLETE; } int fwohci_write_ack(struct fwohci_softc *sc, void *arg, struct fwohci_pkt *pkt) { struct ieee1394_abuf *ab = arg; u_int16_t status; status = pkt->fp_status & OHCI_DESC_STATUS_ACK_MASK; if ((status != OHCI_CTXCTL_EVENT_ACK_COMPLETE) && (status != OHCI_CTXCTL_EVENT_ACK_PENDING)) DPRINTF(("Got status packet: 0x%02x\n", (unsigned int)status)); /* No callback means this level should free the buffers. */ if (ab->ab_cb) (*ab->ab_cb)(ab, status); else { if (ab->ab_data) free(ab->ab_data, M_1394DATA); free(ab, M_1394DATA); } return IEEE1394_RCODE_COMPLETE; } int fwohci_inreg(struct ieee1394_abuf *ab, int allow) { struct ieee1394_softc *sc = ab->ab_req; struct fwohci_softc *psc = (struct fwohci_softc *)sc->sc1394_dev.dv_parent; u_int32_t high, lo; int i, j, rv; high = ((ab->ab_addr & 0x0000ffff00000000) >> 32); lo = (ab->ab_addr & 0x00000000ffffffff); rv = 0; switch (ab->ab_tcode) { case IEEE1394_TCODE_READ_REQ_QUAD: case IEEE1394_TCODE_WRITE_REQ_QUAD: if (ab->ab_cb) rv = fwohci_handler_set(psc, ab->ab_tcode, high, lo, fwohci_parse_input, ab); else fwohci_handler_set(psc, ab->ab_tcode, high, lo, NULL, NULL); break; case IEEE1394_TCODE_READ_REQ_BLOCK: case IEEE1394_TCODE_WRITE_REQ_BLOCK: if (allow) { for (i = 0; i < (ab->ab_length / 4); i++) { if (ab->ab_cb) { rv = fwohci_handler_set(psc, ab->ab_tcode, high, lo + (i * 4), fwohci_parse_input, ab); if (rv) break; } else fwohci_handler_set(psc, ab->ab_tcode, high, lo + (i * 4), NULL, NULL); } if (i != (ab->ab_length / 4)) { j = i + 1; for (i = 0; i < j; i++) fwohci_handler_set(psc, ab->ab_tcode, high, lo + (i * 4), NULL, NULL); } /* * XXX: Need something to indicate writing a smaller * amount is ok. */ if (ab->ab_cb) ab->ab_data = (void *)1; } else { if (ab->ab_cb) rv = fwohci_handler_set(psc, ab->ab_tcode, high, lo, fwohci_parse_input, ab); else fwohci_handler_set(psc, ab->ab_tcode, high, lo, NULL, NULL); } break; default: DPRINTF(("Invalid registration tcode: %d\n", ab->ab_tcode)); return -1; break; } return rv; } int fwohci_unreg(struct ieee1394_abuf *ab, int allow) { void *save; int rv; save = ab->ab_cb; ab->ab_cb = NULL; rv = fwohci_inreg(ab, allow); ab->ab_cb = save; return rv; } int fwohci_parse_input(struct fwohci_softc *sc, void *arg, struct fwohci_pkt *pkt) { struct ieee1394_abuf *ab = (struct ieee1394_abuf *)arg; u_int64_t addr; u_int32_t *cur; int i, count; ab->ab_tcode = (pkt->fp_hdr[0] >> 4) & 0xf; ab->ab_tlabel = (pkt->fp_hdr[0] >> 10) & 0x3f; addr = (((u_int64_t)(pkt->fp_hdr[1] & 0xffff) << 32) | pkt->fp_hdr[2]); switch (ab->ab_tcode) { case IEEE1394_TCODE_READ_REQ_QUAD: ab->ab_retlen = 4; break; case IEEE1394_TCODE_READ_REQ_BLOCK: ab->ab_retlen = (pkt->fp_hdr[3] >> 16) & 0xffff; if (ab->ab_data) { if ((addr + ab->ab_retlen) > (ab->ab_addr + ab->ab_length)) return IEEE1394_RCODE_ADDRESS_ERROR; ab->ab_data = NULL; } else if (ab->ab_retlen != ab->ab_length) return IEEE1394_RCODE_ADDRESS_ERROR; break; case IEEE1394_TCODE_WRITE_REQ_QUAD: ab->ab_retlen = 4; case IEEE1394_TCODE_WRITE_REQ_BLOCK: if (!ab->ab_retlen) ab->ab_retlen = (pkt->fp_hdr[3] >> 16) & 0xffff; if (ab->ab_data) { if ((addr + ab->ab_retlen) > (ab->ab_addr + ab->ab_length)) return IEEE1394_RCODE_ADDRESS_ERROR; ab->ab_data = NULL; } else if (ab->ab_retlen != ab->ab_length) return IEEE1394_RCODE_ADDRESS_ERROR; ab->ab_data = malloc(ab->ab_retlen, M_1394DATA, M_WAITOK); if (ab->ab_tcode == IEEE1394_TCODE_WRITE_REQ_QUAD) ab->ab_data[0] = pkt->fp_hdr[3]; else { count = 0; cur = ab->ab_data; for (i = 0; i < pkt->fp_uio.uio_iovcnt; i++) { memcpy(cur, pkt->fp_iov[i].iov_base, pkt->fp_iov[i].iov_len); cur += pkt->fp_iov[i].iov_len; count += pkt->fp_iov[i].iov_len; } if (ab->ab_retlen != count) panic("Packet claims %d length " "but only %d bytes returned\n", ab->ab_retlen, count); } break; default: panic("Got a callback for a tcode that wasn't requested: %d\n", ab->ab_tcode); break; } ab->ab_addr = addr; ab->ab_cb(ab, IEEE1394_RCODE_COMPLETE); return -1; } #ifdef __NetBSD__ int fwohci_submatch(struct device *parent, struct cfdata *cf, void *aux) #else int fwohci_submatch(struct device *parent, void *vcf, void *aux) #endif { struct ieee1394_attach_args *fwa = aux; #ifdef __OpenBSD__ struct cfdata *cf = (struct cfdata *)vcf; #endif /* Both halves must be filled in for a match. */ if ((cf->fwbuscf_idhi == FWBUS_UNK_IDHI && cf->fwbuscf_idlo == FWBUS_UNK_IDLO) || (cf->fwbuscf_idhi == ntohl(*((u_int32_t *)&fwa->uid[0])) && cf->fwbuscf_idlo == ntohl(*((u_int32_t *)&fwa->uid[4])))) return ((*cf->cf_attach->ca_match)(parent, cf, aux)); return 0; } int fwohci_detach(struct fwohci_softc *sc, int flags) { int rv = 0; if (sc->sc_sc1394.sc1394_if != NULL) rv = config_detach(sc->sc_sc1394.sc1394_if, flags); if (rv != 0) return (rv); #ifdef __NetBSD__ callout_stop(&sc->sc_selfid_callout); #else timeout_del(&sc->sc_selfid_callout); #endif if (sc->sc_powerhook != NULL) powerhook_disestablish(sc->sc_powerhook); if (sc->sc_shutdownhook != NULL) shutdownhook_disestablish(sc->sc_shutdownhook); return (rv); } int fwohci_activate(struct device *self, enum devact act) { struct fwohci_softc *sc = (struct fwohci_softc *)self; int s, rv = 0; s = splhigh(); switch (act) { case DVACT_ACTIVATE: rv = EOPNOTSUPP; break; case DVACT_DEACTIVATE: if (sc->sc_sc1394.sc1394_if != NULL) rv = config_deactivate(sc->sc_sc1394.sc1394_if); break; } splx(s); return (rv); } #ifdef FW_DEBUG void fwohci_show_intr(struct fwohci_softc *sc, u_int32_t intmask) { 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"); } void fwohci_show_phypkt(struct fwohci_softc *sc, u_int32_t val) { u_int8_t key, phyid; key = (val & 0xc0000000) >> 30; phyid = (val & 0x3f000000) >> 24; printf("%s: PHY packet from %d: ", sc->sc_sc1394.sc1394_dev.dv_xname, phyid); switch (key) { case 0: printf("PHY Config:"); if (val & 0x00800000) printf(" ForceRoot"); if (val & 0x00400000) printf(" Gap=%x", (val & 0x003f0000) >> 16); printf("\n"); break; case 1: printf("Link-on\n"); break; case 2: printf("SelfID:"); 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"); break; default: printf("unknown: 0x%08x\n", val); break; } } #endif /* FW_DEBUG */