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authorjhay <jhay@FreeBSD.org>2001-01-30 10:05:44 +0000
committerjhay <jhay@FreeBSD.org>2001-01-30 10:05:44 +0000
commitd692564caf2a8d032840da3aff642bbd4a3f59b8 (patch)
tree520005fe346921a27688851f01b5772f681f1525 /sys
parent20531fb538e4bd455aac5804cb27948306e8977f (diff)
downloadFreeBSD-src-d692564caf2a8d032840da3aff642bbd4a3f59b8.zip
FreeBSD-src-d692564caf2a8d032840da3aff642bbd4a3f59b8.tar.gz
The ar and sr devices have moved to sys/dev/.
Diffstat (limited to 'sys')
-rw-r--r--sys/i386/isa/if_ar.c2520
-rw-r--r--sys/i386/isa/if_ar.h51
-rw-r--r--sys/i386/isa/if_arregs.h227
-rw-r--r--sys/i386/isa/if_sr.c3365
-rw-r--r--sys/i386/isa/if_sr.h51
-rw-r--r--sys/i386/isa/if_srregs.h123
-rw-r--r--sys/pci/if_ar_p.c170
-rw-r--r--sys/pci/if_sr_p.c138
8 files changed, 0 insertions, 6645 deletions
diff --git a/sys/i386/isa/if_ar.c b/sys/i386/isa/if_ar.c
deleted file mode 100644
index e610972..0000000
--- a/sys/i386/isa/if_ar.c
+++ /dev/null
@@ -1,2520 +0,0 @@
-/*
- * Copyright (c) 1995 - 2001 John Hay. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the author nor the names of any co-contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY John Hay ``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 John Hay 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.
- *
- * $FreeBSD$
- */
-
-/*
- * Programming assumptions and other issues.
- *
- * The descriptors of a DMA channel will fit in a 16K memory window.
- *
- * The buffers of a transmit DMA channel will fit in a 16K memory window.
- *
- * Only the ISA bus cards with X.21 and V.35 is tested.
- *
- * When interface is going up, handshaking is set and it is only cleared
- * when the interface is down'ed.
- *
- * There should be a way to set/reset Raw HDLC/PPP, Loopback, DCE/DTE,
- * internal/external clock, etc.....
- *
- */
-
-#include "opt_netgraph.h"
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/kernel.h>
-#include <sys/malloc.h>
-#include <sys/mbuf.h>
-#include <sys/socket.h>
-#include <sys/sockio.h>
-#include <sys/module.h>
-#include <sys/bus.h>
-#include <machine/bus.h>
-#include <machine/resource.h>
-#include <machine/bus_pio.h>
-#include <machine/bus_memio.h>
-#include <sys/rman.h>
-
-#include <isa/isavar.h>
-#include "isa_if.h"
-
-#include <net/if.h>
-#ifdef NETGRAPH
-#include <netgraph/ng_message.h>
-#include <netgraph/netgraph.h>
-#include <sys/syslog.h>
-#include <i386/isa/if_ar.h>
-#else /* NETGRAPH */
-#include <net/if_sppp.h>
-#include <net/bpf.h>
-#endif /* NETGRAPH */
-
-#include <machine/md_var.h>
-
-#include <i386/isa/ic/hd64570.h>
-#include <i386/isa/if_arregs.h>
-
-#ifdef TRACE
-#define TRC(x) x
-#else
-#define TRC(x)
-#endif
-
-#define TRCL(x) x
-
-#define PPP_HEADER_LEN 4
-
-struct ar_softc {
-#ifndef NETGRAPH
- struct sppp ifsppp;
-#endif /* NETGRAPH */
- int unit; /* With regards to all ar devices */
- int subunit; /* With regards to this card */
- struct ar_hardc *hc;
-
- struct buf_block {
- u_int txdesc; /* On card address */
- u_int txstart; /* On card address */
- u_int txend; /* On card address */
- u_int txtail; /* Index of first unused buffer */
- u_int txmax; /* number of usable buffers/descriptors */
- u_int txeda; /* Error descriptor addresses */
- }block[AR_TX_BLOCKS];
-
- char xmit_busy; /* Transmitter is busy */
- char txb_inuse; /* Number of tx blocks currently in use */
- u_char txb_new; /* Index to where new buffer will be added */
- u_char txb_next_tx; /* Index to next block ready to tx */
-
- u_int rxdesc; /* On card address */
- u_int rxstart; /* On card address */
- u_int rxend; /* On card address */
- u_int rxhind; /* Index to the head of the rx buffers. */
- u_int rxmax; /* number of usable buffers/descriptors */
-
- int scano;
- int scachan;
- sca_regs *sca;
-#ifdef NETGRAPH
- int running; /* something is attached so we are running */
- int dcd; /* do we have dcd? */
- /* ---netgraph bits --- */
- char nodename[NG_NODELEN + 1]; /* store our node name */
- int datahooks; /* number of data hooks attached */
- node_p node; /* netgraph node */
- hook_p hook; /* data hook */
- hook_p debug_hook;
- struct ifqueue xmitq_hipri; /* hi-priority transmit queue */
- struct ifqueue xmitq; /* transmit queue */
- int flags; /* state */
-#define SCF_RUNNING 0x01 /* board is active */
-#define SCF_OACTIVE 0x02 /* output is active */
- int out_dog; /* watchdog cycles output count-down */
- struct callout_handle handle; /* timeout(9) handle */
- u_long inbytes, outbytes; /* stats */
- u_long lastinbytes, lastoutbytes; /* a second ago */
- u_long inrate, outrate; /* highest rate seen */
- u_long inlast; /* last input N secs ago */
- u_long out_deficit; /* output since last input */
- u_long oerrors, ierrors[6];
- u_long opackets, ipackets;
-#endif /* NETGRAPH */
-};
-
-static int next_ar_unit = 0;
-
-#ifdef NETGRAPH
-#define DOG_HOLDOFF 6 /* dog holds off for 6 secs */
-#define QUITE_A_WHILE 300 /* 5 MINUTES */
-#define LOTS_OF_PACKETS 100
-#endif /* NETGRAPH */
-
-/*
- * This translate from irq numbers to
- * the value that the arnet card needs
- * in the lower part of the AR_INT_SEL
- * register.
- */
-static int irqtable[16] = {
- 0, /* 0 */
- 0, /* 1 */
- 0, /* 2 */
- 1, /* 3 */
- 0, /* 4 */
- 2, /* 5 */
- 0, /* 6 */
- 3, /* 7 */
- 0, /* 8 */
- 0, /* 9 */
- 4, /* 10 */
- 5, /* 11 */
- 6, /* 12 */
- 0, /* 13 */
- 0, /* 14 */
- 7 /* 15 */
-};
-
-static int ar_isa_probe (device_t);
-static int ar_isa_attach (device_t);
-
-static struct isa_pnp_id ar_ids[] = {
- {0, NULL}
-};
-
-static device_method_t ar_methods[] = {
- DEVMETHOD(device_probe, ar_isa_probe),
- DEVMETHOD(device_attach, ar_isa_attach),
- DEVMETHOD(device_detach, ar_detach),
- { 0, 0 }
-};
-
-static driver_t ar_isa_driver = {
- "ar",
- ar_methods,
- sizeof (struct ar_hardc)
-};
-
-devclass_t ar_devclass;
-
-DRIVER_MODULE(if_ar, isa, ar_isa_driver, ar_devclass, 0, 0);
-#ifndef NETGRAPH
-MODULE_DEPEND(if_ar, sppp, 1, 1, 1);
-#else
-MODULE_DEPEND(ng_sync_ar, netgraph, 1, 1, 1);
-#endif
-
-static void arintr(void *arg);
-static void ar_xmit(struct ar_softc *sc);
-#ifndef NETGRAPH
-static void arstart(struct ifnet *ifp);
-static int arioctl(struct ifnet *ifp, u_long cmd, caddr_t data);
-static void arwatchdog(struct ifnet *ifp);
-#else /* NETGRAPH */
-static void arstart(struct ar_softc *sc);
-static void arwatchdog(struct ar_softc *sc);
-#endif /* NETGRAPH */
-static int ar_packet_avail(struct ar_softc *sc, int *len, u_char *rxstat);
-static void ar_copy_rxbuf(struct mbuf *m, struct ar_softc *sc, int len);
-static void ar_eat_packet(struct ar_softc *sc, int single);
-static void ar_get_packets(struct ar_softc *sc);
-
-static int ar_read_pim_iface(volatile struct ar_hardc *hc, int channel);
-static void ar_up(struct ar_softc *sc);
-static void ar_down(struct ar_softc *sc);
-static void arc_init(struct ar_hardc *hc);
-static void ar_init_sca(struct ar_hardc *hc, int scano);
-static void ar_init_msci(struct ar_softc *sc);
-static void ar_init_rx_dmac(struct ar_softc *sc);
-static void ar_init_tx_dmac(struct ar_softc *sc);
-static void ar_dmac_intr(struct ar_hardc *hc, int scano, u_char isr);
-static void ar_msci_intr(struct ar_hardc *hc, int scano, u_char isr);
-static void ar_timer_intr(struct ar_hardc *hc, int scano, u_char isr);
-
-#ifdef NETGRAPH
-static void ngar_watchdog_frame(void * arg);
-static void ngar_init(void* ignored);
-
-static ng_constructor_t ngar_constructor;
-static ng_rcvmsg_t ngar_rcvmsg;
-static ng_shutdown_t ngar_shutdown;
-static ng_newhook_t ngar_newhook;
-/*static ng_findhook_t ngar_findhook; */
-static ng_connect_t ngar_connect;
-static ng_rcvdata_t ngar_rcvdata;
-static ng_disconnect_t ngar_disconnect;
-
-static struct ng_type typestruct = {
- NG_ABI_VERSION,
- NG_AR_NODE_TYPE,
- NULL,
- ngar_constructor,
- ngar_rcvmsg,
- ngar_shutdown,
- ngar_newhook,
- NULL,
- ngar_connect,
- ngar_rcvdata,
- ngar_disconnect,
- NULL
-};
-
-static int ngar_done_init = 0;
-#endif /* NETGRAPH */
-
-/*
- * Probe to see if it is there.
- * Get its information and fill it in.
- */
-static int
-ar_isa_probe(device_t device)
-{
- int error;
- u_long membase, memsize, port_start, port_count;
-
- error = ISA_PNP_PROBE(device_get_parent(device), device, ar_ids);
- if(error == ENXIO || error == 0)
- return (error);
-
- if((error = ar_allocate_ioport(device, 0, ARC_IO_SIZ))) {
- return (ENXIO);
- }
-
- /*
- * Now see if the card is realy there.
- *
- * XXX For now I just check the undocumented ports
- * for "570". We will probably have to do more checking.
- */
- error = bus_get_resource(device, SYS_RES_IOPORT, 0, &port_start,
- &port_count);
-
- if((inb(port_start + AR_ID_5) != '5') ||
- (inb(port_start + AR_ID_7) != '7') ||
- (inb(port_start + AR_ID_0) != '0')) {
- ar_deallocate_resources(device);
- return (ENXIO);
- }
- membase = bus_get_resource_start(device, SYS_RES_MEMORY, 0);
- memsize = inb(port_start + AR_REV);
- memsize = 1 << ((memsize & AR_WSIZ_MSK) >> AR_WSIZ_SHFT);
- memsize *= ARC_WIN_SIZ;
- error = bus_set_resource(device, SYS_RES_MEMORY, 0, membase, memsize);
- ar_deallocate_resources(device);
-
- return (error);
-}
-
-/*
- * Malloc memory for the softc structures.
- * Reset the card to put it in a known state.
- * Register the ports on the adapter.
- * Fill in the info for each port.
- * Attach each port to sppp and bpf.
- */
-static int
-ar_isa_attach(device_t device)
-{
- u_int tmp;
- u_long irq, junk;
- struct ar_hardc *hc;
-
- hc = (struct ar_hardc *)device_get_softc(device);
- if(ar_allocate_ioport(device, 0, ARC_IO_SIZ))
- return (ENXIO);
- hc->bt = rman_get_bustag(hc->res_ioport);
- hc->bh = rman_get_bushandle(hc->res_ioport);
-
- hc->iobase = rman_get_start(hc->res_ioport);
-
- tmp = inb(hc->iobase + AR_BMI);
- hc->bustype = tmp & AR_BUS_MSK;
- hc->memsize = (tmp & AR_MEM_MSK) >> AR_MEM_SHFT;
- hc->memsize = 1 << hc->memsize;
- hc->memsize <<= 16;
- hc->interface[0] = (tmp & AR_IFACE_MSK);
- hc->interface[1] = hc->interface[0];
- hc->interface[2] = hc->interface[0];
- hc->interface[3] = hc->interface[0];
- tmp = inb(hc->iobase + AR_REV);
- hc->revision = tmp & AR_REV_MSK;
- hc->winsize = 1 << ((tmp & AR_WSIZ_MSK) >> AR_WSIZ_SHFT);
- hc->winsize *= ARC_WIN_SIZ;
- hc->winmsk = hc->winsize - 1;
- hc->numports = inb(hc->iobase + AR_PNUM);
- hc->handshake = inb(hc->iobase + AR_HNDSH);
-
- if(ar_allocate_memory(device, 0, hc->winsize))
- return (ENXIO);
-
- hc->mem_start = rman_get_virtual(hc->res_memory);
- hc->mem_end = hc->mem_start + hc->winsize;
- hc->cunit = device_get_unit(device);
-
- switch(hc->interface[0]) {
- case AR_IFACE_EIA_232:
- printf("ar%d: The EIA 232 interface is not supported.\n",
- hc->cunit);
- ar_deallocate_resources(device);
- return (ENXIO);
- case AR_IFACE_V_35:
- break;
- case AR_IFACE_EIA_530:
- printf("ar%d: WARNING: The EIA 530 interface is untested.\n",
- hc->cunit);
- break;
- case AR_IFACE_X_21:
- break;
- case AR_IFACE_COMBO:
- printf("ar%d: WARNING: The COMBO interface is untested.\n",
- hc->cunit);
- break;
- }
-
- /*
- * Do a little sanity check.
- */
- if((hc->numports > NPORT) || (hc->memsize > (512*1024))) {
- ar_deallocate_resources(device);
- return (ENXIO);
- }
-
- if(ar_allocate_irq(device, 0, 1))
- return (ENXIO);
-
- if(bus_get_resource(device, SYS_RES_IRQ, 0, &irq, &junk)) {
- ar_deallocate_resources(device);
- return (ENXIO);
- }
- hc->isa_irq = irq;
-
- if(ar_attach(device)) {
- ar_deallocate_resources(device);
- return (ENXIO);
- }
-
- return (0);
-}
-
-int
-ar_attach(device_t device)
-{
- struct ar_hardc *hc;
- struct ar_softc *sc;
-#ifndef NETGRAPH
- struct ifnet *ifp;
- char *iface;
-#endif /* NETGRAPH */
- int unit;
-
- hc = (struct ar_hardc *)device_get_softc(device);
-
- printf("arc%d: %uK RAM, %u ports, rev %u.\n",
- hc->cunit,
- hc->memsize/1024,
- hc->numports,
- hc->revision);
-
- arc_init(hc);
-
- if(BUS_SETUP_INTR(device_get_parent(device), device, hc->res_irq,
- INTR_TYPE_NET, arintr, hc, &hc->intr_cookie) != 0)
- return (1);
-
- sc = hc->sc;
-
- for(unit=0;unit<hc->numports;unit+=NCHAN)
- ar_init_sca(hc, unit / NCHAN);
-
- /*
- * Now configure each port on the card.
- */
- for(unit=0;unit<hc->numports;sc++,unit++) {
- sc->hc = hc;
- sc->subunit = unit;
- sc->unit = next_ar_unit;
- next_ar_unit++;
- sc->scano = unit / NCHAN;
- sc->scachan = unit%NCHAN;
-
- ar_init_rx_dmac(sc);
- ar_init_tx_dmac(sc);
- ar_init_msci(sc);
-
-#ifndef NETGRAPH
- ifp = &sc->ifsppp.pp_if;
-
- ifp->if_softc = sc;
- ifp->if_unit = sc->unit;
- ifp->if_name = "ar";
- ifp->if_mtu = PP_MTU;
- ifp->if_flags = IFF_POINTOPOINT | IFF_MULTICAST;
- ifp->if_ioctl = arioctl;
- ifp->if_start = arstart;
- ifp->if_watchdog = arwatchdog;
-
- sc->ifsppp.pp_flags = PP_KEEPALIVE;
-
- switch(hc->interface[unit]) {
- default: iface = "UNKNOWN"; break;
- case AR_IFACE_EIA_232: iface = "EIA-232"; break;
- case AR_IFACE_V_35: iface = "EIA-232 or V.35"; break;
- case AR_IFACE_EIA_530: iface = "EIA-530"; break;
- case AR_IFACE_X_21: iface = "X.21"; break;
- case AR_IFACE_COMBO: iface = "COMBO X.21 / EIA-530"; break;
- }
-
- printf("ar%d: Adapter %d, port %d, interface %s.\n",
- sc->unit,
- hc->cunit,
- sc->subunit,
- iface);
-
- sppp_attach((struct ifnet *)&sc->ifsppp);
- if_attach(ifp);
-
- bpfattach(ifp, DLT_PPP, PPP_HEADER_LEN);
-#else /* NETGRAPH */
- /*
- * we have found a node, make sure our 'type' is availabe.
- */
- if (ngar_done_init == 0) ngar_init(NULL);
- if (ng_make_node_common(&typestruct, &sc->node) != 0)
- return (1);
- sprintf(sc->nodename, "%s%d", NG_AR_NODE_TYPE, sc->unit);
- if (ng_name_node(sc->node, sc->nodename)) {
- NG_NODE_UNREF(sc->node); /* drop it again */
- return (1);
- }
- NG_NODE_SET_PRIVATE(sc->node, sc);
- callout_handle_init(&sc->handle);
- sc->xmitq.ifq_maxlen = IFQ_MAXLEN;
- sc->xmitq_hipri.ifq_maxlen = IFQ_MAXLEN;
- mtx_init(&sc->xmitq.ifq_mtx, "ar_xmitq", MTX_DEF);
- mtx_init(&sc->xmitq_hipri.ifq_mtx, "ar_xmitq_hipri", MTX_DEF);
- sc->running = 0;
-#endif /* NETGRAPH */
- }
-
- if(hc->bustype == AR_BUS_ISA)
- ARC_SET_OFF(hc->iobase);
-
- return (0);
-}
-
-int
-ar_detach(device_t device)
-{
- device_t parent = device_get_parent(device);
- struct ar_hardc *hc = device_get_softc(device);
-
- if (hc->intr_cookie != NULL) {
- if (BUS_TEARDOWN_INTR(parent, device,
- hc->res_irq, hc->intr_cookie) != 0) {
- printf("intr teardown failed.. continuing\n");
- }
- hc->intr_cookie = NULL;
- }
-
- /*
- * deallocate any system resources we may have
- * allocated on behalf of this driver.
- */
- FREE(hc->sc, M_DEVBUF);
- hc->sc = NULL;
- hc->mem_start = NULL;
- return (ar_deallocate_resources(device));
-}
-
-int
-ar_allocate_ioport(device_t device, int rid, u_long size)
-{
- struct ar_hardc *hc = device_get_softc(device);
-
- hc->rid_ioport = rid;
- hc->res_ioport = bus_alloc_resource(device, SYS_RES_IOPORT,
- &hc->rid_ioport, 0ul, ~0ul, size, RF_ACTIVE);
- if (hc->res_ioport == NULL) {
- goto errexit;
- }
- return (0);
-
-errexit:
- ar_deallocate_resources(device);
- return (ENXIO);
-}
-
-int
-ar_allocate_irq(device_t device, int rid, u_long size)
-{
- struct ar_hardc *hc = device_get_softc(device);
-
- hc->rid_irq = rid;
- hc->res_irq = bus_alloc_resource(device, SYS_RES_IRQ,
- &hc->rid_irq, 0ul, ~0ul, 1, RF_SHAREABLE|RF_ACTIVE);
- if (hc->res_irq == NULL) {
- goto errexit;
- }
- return (0);
-
-errexit:
- ar_deallocate_resources(device);
- return (ENXIO);
-}
-
-int
-ar_allocate_memory(device_t device, int rid, u_long size)
-{
- struct ar_hardc *hc = device_get_softc(device);
-
- hc->rid_memory = rid;
- hc->res_memory = bus_alloc_resource(device, SYS_RES_MEMORY,
- &hc->rid_memory, 0ul, ~0ul, size, RF_ACTIVE);
- if (hc->res_memory == NULL) {
- goto errexit;
- }
- return (0);
-
-errexit:
- ar_deallocate_resources(device);
- return (ENXIO);
-}
-
-int
-ar_allocate_plx_memory(device_t device, int rid, u_long size)
-{
- struct ar_hardc *hc = device_get_softc(device);
-
- hc->rid_plx_memory = rid;
- hc->res_plx_memory = bus_alloc_resource(device, SYS_RES_MEMORY,
- &hc->rid_plx_memory, 0ul, ~0ul, size, RF_ACTIVE);
- if (hc->res_plx_memory == NULL) {
- goto errexit;
- }
- return (0);
-
-errexit:
- ar_deallocate_resources(device);
- return (ENXIO);
-}
-
-int
-ar_deallocate_resources(device_t device)
-{
- struct ar_hardc *hc = device_get_softc(device);
-
- if (hc->res_irq != 0) {
- bus_deactivate_resource(device, SYS_RES_IRQ,
- hc->rid_irq, hc->res_irq);
- bus_release_resource(device, SYS_RES_IRQ,
- hc->rid_irq, hc->res_irq);
- hc->res_irq = 0;
- }
- if (hc->res_ioport != 0) {
- bus_deactivate_resource(device, SYS_RES_IOPORT,
- hc->rid_ioport, hc->res_ioport);
- bus_release_resource(device, SYS_RES_IOPORT,
- hc->rid_ioport, hc->res_ioport);
- hc->res_ioport = 0;
- }
- if (hc->res_memory != 0) {
- bus_deactivate_resource(device, SYS_RES_MEMORY,
- hc->rid_memory, hc->res_memory);
- bus_release_resource(device, SYS_RES_MEMORY,
- hc->rid_memory, hc->res_memory);
- hc->res_memory = 0;
- }
- if (hc->res_plx_memory != 0) {
- bus_deactivate_resource(device, SYS_RES_MEMORY,
- hc->rid_plx_memory, hc->res_plx_memory);
- bus_release_resource(device, SYS_RES_MEMORY,
- hc->rid_plx_memory, hc->res_plx_memory);
- hc->res_plx_memory = 0;
- }
- return (0);
-}
-
-/*
- * First figure out which SCA gave the interrupt.
- * Process it.
- * See if there is other interrupts pending.
- * Repeat until there is no more interrupts.
- */
-static void
-arintr(void *arg)
-{
- struct ar_hardc *hc = (struct ar_hardc *)arg;
- sca_regs *sca;
- u_char isr0, isr1, isr2, arisr;
- int scano;
-
- /* XXX Use the PCI interrupt score board register later */
- if(hc->bustype == AR_BUS_PCI)
- arisr = hc->orbase[AR_ISTAT * 4];
- else
- arisr = inb(hc->iobase + AR_ISTAT);
-
- while(arisr & AR_BD_INT) {
- TRC(printf("arisr = %x\n", arisr));
- if(arisr & AR_INT_0)
- scano = 0;
- else if(arisr & AR_INT_1)
- scano = 1;
- else {
- /* XXX Oops this shouldn't happen. */
- printf("arc%d: Interrupted with no interrupt.\n",
- hc->cunit);
- return;
- }
- sca = hc->sca[scano];
-
- if(hc->bustype == AR_BUS_ISA)
- ARC_SET_SCA(hc->iobase, scano);
-
- isr0 = sca->isr0;
- isr1 = sca->isr1;
- isr2 = sca->isr2;
-
- TRC(printf("arc%d: ARINTR isr0 %x, isr1 %x, isr2 %x\n",
- hc->cunit,
- isr0,
- isr1,
- isr2));
- if(isr0)
- ar_msci_intr(hc, scano, isr0);
-
- if(isr1)
- ar_dmac_intr(hc, scano, isr1);
-
- if(isr2)
- ar_timer_intr(hc, scano, isr2);
-
- /*
- * Proccess the second sca's interrupt if available.
- * Else see if there are any new interrupts.
- */
- if((arisr & AR_INT_0) && (arisr & AR_INT_1))
- arisr &= ~AR_INT_0;
- else {
- if(hc->bustype == AR_BUS_PCI)
- arisr = hc->orbase[AR_ISTAT * 4];
- else
- arisr = inb(hc->iobase + AR_ISTAT);
- }
- }
-
- if(hc->bustype == AR_BUS_ISA)
- ARC_SET_OFF(hc->iobase);
-}
-
-
-/*
- * This will only start the transmitter. It is assumed that the data
- * is already there. It is normally called from arstart() or ar_dmac_intr().
- *
- */
-static void
-ar_xmit(struct ar_softc *sc)
-{
-#ifndef NETGRAPH
- struct ifnet *ifp;
-#endif /* NETGRAPH */
- dmac_channel *dmac;
-
-#ifndef NETGRAPH
- ifp = &sc->ifsppp.pp_if;
-#endif /* NETGRAPH */
- dmac = &sc->sca->dmac[DMAC_TXCH(sc->scachan)];
-
- if(sc->hc->bustype == AR_BUS_ISA)
- ARC_SET_SCA(sc->hc->iobase, sc->scano);
- dmac->cda = (u_short)(sc->block[sc->txb_next_tx].txdesc & 0xffff);
-
- dmac->eda = (u_short)(sc->block[sc->txb_next_tx].txeda & 0xffff);
- dmac->dsr = SCA_DSR_DE;
-
- sc->xmit_busy = 1;
-
- sc->txb_next_tx++;
- if(sc->txb_next_tx == AR_TX_BLOCKS)
- sc->txb_next_tx = 0;
-
-#ifndef NETGRAPH
- ifp->if_timer = 2; /* Value in seconds. */
-#else /* NETGRAPH */
- sc->out_dog = DOG_HOLDOFF; /* give ourself some breathing space*/
-#endif /* NETGRAPH */
- if(sc->hc->bustype == AR_BUS_ISA)
- ARC_SET_OFF(sc->hc->iobase);
-}
-
-/*
- * This function will be called from the upper level when a user add a
- * packet to be send, and from the interrupt handler after a finished
- * transmit.
- *
- * NOTE: it should run at spl_imp().
- *
- * This function only place the data in the oncard buffers. It does not
- * start the transmition. ar_xmit() does that.
- *
- * Transmitter idle state is indicated by the IFF_OACTIVE flag. The function
- * that clears that should ensure that the transmitter and its DMA is
- * in a "good" idle state.
- */
-#ifndef NETGRAPH
-static void
-arstart(struct ifnet *ifp)
-{
- struct ar_softc *sc = ifp->if_softc;
-#else /* NETGRAPH */
-static void
-arstart(struct ar_softc *sc)
-{
-#endif /* NETGRAPH */
- int i, len, tlen;
- struct mbuf *mtx;
- u_char *txdata;
- sca_descriptor *txdesc;
- struct buf_block *blkp;
-
-#ifndef NETGRAPH
- if(!(ifp->if_flags & IFF_RUNNING))
- return;
-#else /* NETGRAPH */
-/* XXX */
-#endif /* NETGRAPH */
-
-top_arstart:
-
- /*
- * See if we have space for more packets.
- */
- if(sc->txb_inuse == AR_TX_BLOCKS) {
-#ifndef NETGRAPH
- ifp->if_flags |= IFF_OACTIVE; /* yes, mark active */
-#else /* NETGRAPH */
-/*XXX*/ /*ifp->if_flags |= IFF_OACTIVE;*/ /* yes, mark active */
-#endif /* NETGRAPH */
- return;
- }
-
-#ifndef NETGRAPH
- mtx = sppp_dequeue(ifp);
-#else /* NETGRAPH */
- IF_DEQUEUE(&sc->xmitq_hipri, mtx);
- if (mtx == NULL) {
- IF_DEQUEUE(&sc->xmitq, mtx);
- }
-#endif /* NETGRAPH */
- if(!mtx)
- return;
-
- /*
- * It is OK to set the memory window outside the loop because
- * all tx buffers and descriptors are assumed to be in the same
- * 16K window.
- */
- if(sc->hc->bustype == AR_BUS_ISA)
- ARC_SET_MEM(sc->hc->iobase, sc->block[0].txdesc);
-
- /*
- * We stay in this loop until there is nothing in the
- * TX queue left or the tx buffer is full.
- */
- i = 0;
- blkp = &sc->block[sc->txb_new];
- txdesc = (sca_descriptor *)
- (sc->hc->mem_start + (blkp->txdesc & sc->hc->winmsk));
- txdata = (u_char *)(sc->hc->mem_start + (blkp->txstart & sc->hc->winmsk));
- for(;;) {
- len = mtx->m_pkthdr.len;
-
- TRC(printf("ar%d: ARstart len %u\n", sc->unit, len));
-
- /*
- * We can do this because the tx buffers don't wrap.
- */
- m_copydata(mtx, 0, len, txdata);
- tlen = len;
- while(tlen > AR_BUF_SIZ) {
- txdesc->stat = 0;
- txdesc->len = AR_BUF_SIZ;
- tlen -= AR_BUF_SIZ;
- txdesc++;
- txdata += AR_BUF_SIZ;
- i++;
- }
- /* XXX Move into the loop? */
- txdesc->stat = SCA_DESC_EOM;
- txdesc->len = tlen;
- txdesc++;
- txdata += AR_BUF_SIZ;
- i++;
-
-#ifndef NETGRAPH
- if(ifp->if_bpf)
- bpf_mtap(ifp, mtx);
- m_freem(mtx);
- ++sc->ifsppp.pp_if.if_opackets;
-#else /* NETGRAPH */
- m_freem(mtx);
- sc->outbytes += len;
- ++sc->opackets;
-#endif /* NETGRAPH */
-
- /*
- * Check if we have space for another mbuf.
- * XXX This is hardcoded. A packet won't be larger
- * than 3 buffers (3 x 512).
- */
- if((i + 3) >= blkp->txmax)
- break;
-
-#ifndef NETGRAPH
- mtx = sppp_dequeue(ifp);
-#else /* NETGRAPH */
- IF_DEQUEUE(&sc->xmitq_hipri, mtx);
- if (mtx == NULL) {
- IF_DEQUEUE(&sc->xmitq, mtx);
- }
-#endif /* NETGRAPH */
- if(!mtx)
- break;
- }
-
- blkp->txtail = i;
-
- /*
- * Mark the last descriptor, so that the SCA know where
- * to stop.
- */
- txdesc--;
- txdesc->stat |= SCA_DESC_EOT;
-
- txdesc = (sca_descriptor *)blkp->txdesc;
- blkp->txeda = (u_short)((u_int)&txdesc[i]);
-
-#if 0
- printf("ARstart: %p desc->cp %x\n", &txdesc->cp, txdesc->cp);
- printf("ARstart: %p desc->bp %x\n", &txdesc->bp, txdesc->bp);
- printf("ARstart: %p desc->bpb %x\n", &txdesc->bpb, txdesc->bpb);
- printf("ARstart: %p desc->len %x\n", &txdesc->len, txdesc->len);
- printf("ARstart: %p desc->stat %x\n", &txdesc->stat, txdesc->stat);
-#endif
-
- sc->txb_inuse++;
- sc->txb_new++;
- if(sc->txb_new == AR_TX_BLOCKS)
- sc->txb_new = 0;
-
- if(sc->xmit_busy == 0)
- ar_xmit(sc);
-
- if(sc->hc->bustype == AR_BUS_ISA)
- ARC_SET_OFF(sc->hc->iobase);
-
- goto top_arstart;
-}
-
-#ifndef NETGRAPH
-static int
-arioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
-{
- int s, error;
- int was_up, should_be_up;
- struct ar_softc *sc = ifp->if_softc;
-
- TRC(printf("ar%d: arioctl.\n", ifp->if_unit);)
-
- was_up = ifp->if_flags & IFF_RUNNING;
-
- error = sppp_ioctl(ifp, cmd, data);
- TRC(printf("ar%d: ioctl: ifsppp.pp_flags = %x, if_flags %x.\n",
- ifp->if_unit, ((struct sppp *)ifp)->pp_flags, ifp->if_flags);)
- if(error)
- return (error);
-
- if((cmd != SIOCSIFFLAGS) && cmd != (SIOCSIFADDR))
- return (0);
-
- TRC(printf("ar%d: arioctl %s.\n", ifp->if_unit,
- (cmd == SIOCSIFFLAGS) ? "SIOCSIFFLAGS" : "SIOCSIFADDR");)
-
- s = splimp();
- should_be_up = ifp->if_flags & IFF_RUNNING;
-
- if(!was_up && should_be_up) {
- /* Interface should be up -- start it. */
- ar_up(sc);
- arstart(ifp);
- /* XXX Maybe clear the IFF_UP flag so that the link
- * will only go up after sppp lcp and ipcp negotiation.
- */
- } else if(was_up && !should_be_up) {
- /* Interface should be down -- stop it. */
- ar_down(sc);
- sppp_flush(ifp);
- }
- splx(s);
- return (0);
-}
-#endif /* NETGRAPH */
-
-/*
- * This is to catch lost tx interrupts.
- */
-static void
-#ifndef NETGRAPH
-arwatchdog(struct ifnet *ifp)
-{
- struct ar_softc *sc = ifp->if_softc;
-#else /* NETGRAPH */
-arwatchdog(struct ar_softc *sc)
-{
-#endif /* NETGRAPH */
- msci_channel *msci = &sc->sca->msci[sc->scachan];
-
-#ifndef NETGRAPH
- if(!(ifp->if_flags & IFF_RUNNING))
- return;
-#endif /* NETGRAPH */
-
- if(sc->hc->bustype == AR_BUS_ISA)
- ARC_SET_SCA(sc->hc->iobase, sc->scano);
-
- /* XXX if(sc->ifsppp.pp_if.if_flags & IFF_DEBUG) */
- printf("ar%d: transmit failed, "
- "ST0 %x, ST1 %x, ST3 %x, DSR %x.\n",
- sc->unit,
- msci->st0,
- msci->st1,
- msci->st3,
- sc->sca->dmac[DMAC_TXCH(sc->scachan)].dsr);
-
- if(msci->st1 & SCA_ST1_UDRN) {
- msci->cmd = SCA_CMD_TXABORT;
- msci->cmd = SCA_CMD_TXENABLE;
- msci->st1 = SCA_ST1_UDRN;
- }
-
- sc->xmit_busy = 0;
-#ifndef NETGRAPH
- ifp->if_flags &= ~IFF_OACTIVE;
-#else /* NETGRAPH */
- /* XXX ifp->if_flags &= ~IFF_OACTIVE; */
-#endif /* NETGRAPH */
-
- if(sc->txb_inuse && --sc->txb_inuse)
- ar_xmit(sc);
-
-#ifndef NETGRAPH
- arstart(ifp);
-#else /* NETGRAPH */
- arstart(sc);
-#endif /* NETGRAPH */
-}
-
-static void
-ar_up(struct ar_softc *sc)
-{
- sca_regs *sca;
- msci_channel *msci;
-
- sca = sc->sca;
- msci = &sca->msci[sc->scachan];
-
- TRC(printf("ar%d: sca %p, msci %p, ch %d\n",
- sc->unit, sca, msci, sc->scachan));
-
- /*
- * Enable transmitter and receiver.
- * Raise DTR and RTS.
- * Enable interrupts.
- */
- if(sc->hc->bustype == AR_BUS_ISA)
- ARC_SET_SCA(sc->hc->iobase, sc->scano);
-
- /* XXX
- * What about using AUTO mode in msci->md0 ???
- * And what about CTS/DCD etc... ?
- */
- if(sc->hc->handshake & AR_SHSK_RTS)
- msci->ctl &= ~SCA_CTL_RTS;
- if(sc->hc->handshake & AR_SHSK_DTR) {
- sc->hc->txc_dtr[sc->scano] &= sc->scachan ?
- ~AR_TXC_DTR_DTR1 : ~AR_TXC_DTR_DTR0;
- if(sc->hc->bustype == AR_BUS_PCI)
- sc->hc->orbase[sc->hc->txc_dtr_off[sc->scano]] =
- sc->hc->txc_dtr[sc->scano];
- else
- outb(sc->hc->iobase + sc->hc->txc_dtr_off[sc->scano],
- sc->hc->txc_dtr[sc->scano]);
- }
-
- if(sc->scachan == 0) {
- sca->ier0 |= 0x0F;
- sca->ier1 |= 0x0F;
- } else {
- sca->ier0 |= 0xF0;
- sca->ier1 |= 0xF0;
- }
-
- msci->cmd = SCA_CMD_RXENABLE;
- if(sc->hc->bustype == AR_BUS_ISA)
- inb(sc->hc->iobase + AR_ID_5); /* XXX slow it down a bit. */
- msci->cmd = SCA_CMD_TXENABLE;
-
- if(sc->hc->bustype == AR_BUS_ISA)
- ARC_SET_OFF(sc->hc->iobase);
-#ifdef NETGRAPH
- untimeout(ngar_watchdog_frame, sc, sc->handle);
- sc->handle = timeout(ngar_watchdog_frame, sc, hz);
- sc->running = 1;
-#endif /* NETGRAPH */
-}
-
-static void
-ar_down(struct ar_softc *sc)
-{
- sca_regs *sca;
- msci_channel *msci;
-
- sca = sc->sca;
- msci = &sca->msci[sc->scachan];
-
-#ifdef NETGRAPH
- untimeout(ngar_watchdog_frame, sc, sc->handle);
- sc->running = 0;
-#endif /* NETGRAPH */
- /*
- * Disable transmitter and receiver.
- * Lower DTR and RTS.
- * Disable interrupts.
- */
- if(sc->hc->bustype == AR_BUS_ISA)
- ARC_SET_SCA(sc->hc->iobase, sc->scano);
- msci->cmd = SCA_CMD_RXDISABLE;
- if(sc->hc->bustype == AR_BUS_ISA)
- inb(sc->hc->iobase + AR_ID_5); /* XXX slow it down a bit. */
- msci->cmd = SCA_CMD_TXDISABLE;
-
- if(sc->hc->handshake & AR_SHSK_RTS)
- msci->ctl |= SCA_CTL_RTS;
- if(sc->hc->handshake & AR_SHSK_DTR) {
- sc->hc->txc_dtr[sc->scano] |= sc->scachan ?
- AR_TXC_DTR_DTR1 : AR_TXC_DTR_DTR0;
- if(sc->hc->bustype == AR_BUS_PCI)
- sc->hc->orbase[sc->hc->txc_dtr_off[sc->scano]] =
- sc->hc->txc_dtr[sc->scano];
- else
- outb(sc->hc->iobase + sc->hc->txc_dtr_off[sc->scano],
- sc->hc->txc_dtr[sc->scano]);
- }
-
- if(sc->scachan == 0) {
- sca->ier0 &= ~0x0F;
- sca->ier1 &= ~0x0F;
- } else {
- sca->ier0 &= ~0xF0;
- sca->ier1 &= ~0xF0;
- }
-
- if(sc->hc->bustype == AR_BUS_ISA)
- ARC_SET_OFF(sc->hc->iobase);
-}
-
-static int
-ar_read_pim_iface(volatile struct ar_hardc *hc, int channel)
-{
- int ctype, i, val, x;
- volatile u_char *pimctrl;
-
- ctype = 0;
- val = 0;
-
- pimctrl = hc->orbase + AR_PIMCTRL;
-
- /* Reset the PIM */
- *pimctrl = 0x00;
- *pimctrl = AR_PIM_STROBE;
-
- /* Check if there is a PIM */
- *pimctrl = 0x00;
- *pimctrl = AR_PIM_READ;
- x = *pimctrl;
- TRC(printf("x = %x", x));
- if(x & AR_PIM_DATA) {
- printf("No PIM installed\n");
- return (AR_IFACE_UNKNOWN);
- }
-
- x = (x >> 1) & 0x01;
- val |= x << 0;
-
- /* Now read the next 15 bits */
- for(i = 1; i < 16; i++) {
- *pimctrl = AR_PIM_READ;
- *pimctrl = AR_PIM_READ | AR_PIM_STROBE;
- x = *pimctrl;
- TRC(printf(" %x ", x));
- x = (x >> 1) & 0x01;
- val |= x << i;
- if(i == 8 && (val & 0x000f) == 0x0004) {
- int ii;
-
- /* Start bit */
- *pimctrl = AR_PIM_A2D_DOUT | AR_PIM_A2D_STROBE;
- *pimctrl = AR_PIM_A2D_DOUT;
-
- /* Mode bit */
- *pimctrl = AR_PIM_A2D_DOUT | AR_PIM_A2D_STROBE;
- *pimctrl = AR_PIM_A2D_DOUT;
-
- /* Sign bit */
- *pimctrl = AR_PIM_A2D_DOUT | AR_PIM_A2D_STROBE;
- *pimctrl = AR_PIM_A2D_DOUT;
-
- /* Select channel */
- *pimctrl = AR_PIM_A2D_STROBE | ((channel & 2) << 2);
- *pimctrl = ((channel & 2) << 2);
- *pimctrl = AR_PIM_A2D_STROBE | ((channel & 1) << 3);
- *pimctrl = ((channel & 1) << 3);
-
- *pimctrl = AR_PIM_A2D_STROBE;
-
- x = *pimctrl;
- if(x & AR_PIM_DATA)
- printf("\nOops A2D start bit not zero (%X)\n", x);
-
- for(ii = 7; ii >= 0; ii--) {
- *pimctrl = 0x00;
- *pimctrl = AR_PIM_A2D_STROBE;
- x = *pimctrl;
- if(x & AR_PIM_DATA)
- ctype |= 1 << ii;
- }
- }
- }
- TRC(printf("\nPIM val %x, ctype %x, %d\n", val, ctype, ctype));
- *pimctrl = AR_PIM_MODEG;
- *pimctrl = AR_PIM_MODEG | AR_PIM_AUTO_LED;
- if(ctype > 255)
- return (AR_IFACE_UNKNOWN);
- if(ctype > 239)
- return (AR_IFACE_V_35);
- if(ctype > 207)
- return (AR_IFACE_EIA_232);
- if(ctype > 178)
- return (AR_IFACE_X_21);
- if(ctype > 150)
- return (AR_IFACE_EIA_530);
- if(ctype > 25)
- return (AR_IFACE_UNKNOWN);
- if(ctype > 7)
- return (AR_IFACE_LOOPBACK);
- return (AR_IFACE_UNKNOWN);
-}
-
-/*
- * Initialize the card, allocate memory for the ar_softc structures
- * and fill in the pointers.
- */
-static void
-arc_init(struct ar_hardc *hc)
-{
- struct ar_softc *sc;
- int x;
- u_int chanmem;
- u_int bufmem;
- u_int next;
- u_int descneeded;
- u_char isr, mar;
-
- MALLOC(sc, struct ar_softc *, hc->numports * sizeof(struct ar_softc),
- M_DEVBUF, M_WAITOK | M_ZERO);
- if (sc == NULL)
- return;
- hc->sc = sc;
-
- hc->txc_dtr[0] = AR_TXC_DTR_NOTRESET |
- AR_TXC_DTR_DTR0 | AR_TXC_DTR_DTR1;
- hc->txc_dtr[1] = AR_TXC_DTR_DTR0 | AR_TXC_DTR_DTR1;
- hc->txc_dtr_off[0] = AR_TXC_DTR0;
- hc->txc_dtr_off[1] = AR_TXC_DTR2;
- if(hc->bustype == AR_BUS_PCI) {
- hc->txc_dtr_off[0] *= 4;
- hc->txc_dtr_off[1] *= 4;
- }
-
- /*
- * reset the card and wait at least 1uS.
- */
- if(hc->bustype == AR_BUS_PCI)
- hc->orbase[AR_TXC_DTR0 * 4] = ~AR_TXC_DTR_NOTRESET &
- hc->txc_dtr[0];
- else
- outb(hc->iobase + AR_TXC_DTR0, ~AR_TXC_DTR_NOTRESET &
- hc->txc_dtr[0]);
- DELAY(2);
- if(hc->bustype == AR_BUS_PCI)
- hc->orbase[AR_TXC_DTR0 * 4] = hc->txc_dtr[0];
- else
- outb(hc->iobase + AR_TXC_DTR0, hc->txc_dtr[0]);
-
- if(hc->bustype == AR_BUS_ISA) {
- /*
- * Configure the card.
- * Mem address, irq,
- */
- mar = kvtop(hc->mem_start) >> 16;
- isr = irqtable[hc->isa_irq] << 1;
- if(isr == 0)
- printf("ar%d: Warning illegal interrupt %d\n",
- hc->cunit, hc->isa_irq);
- isr = isr | ((kvtop(hc->mem_start) & 0xc000) >> 10);
-
- hc->sca[0] = (sca_regs *)hc->mem_start;
- hc->sca[1] = (sca_regs *)hc->mem_start;
-
- outb(hc->iobase + AR_MEM_SEL, mar);
- outb(hc->iobase + AR_INT_SEL, isr | AR_INTS_CEN);
- }
-
- if(hc->bustype == AR_BUS_PCI && hc->interface[0] == AR_IFACE_PIM)
- for(x = 0; x < hc->numports; x++)
- hc->interface[x] = ar_read_pim_iface(hc, x);
-
- /*
- * Set the TX clock direction and enable TX.
- */
- for(x=0;x<hc->numports;x++) {
- switch(hc->interface[x]) {
- case AR_IFACE_V_35:
- hc->txc_dtr[x / NCHAN] |= (x % NCHAN == 0) ?
- AR_TXC_DTR_TX0 : AR_TXC_DTR_TX1;
- hc->txc_dtr[x / NCHAN] |= (x % NCHAN == 0) ?
- AR_TXC_DTR_TXCS0 : AR_TXC_DTR_TXCS1;
- break;
- case AR_IFACE_EIA_530:
- case AR_IFACE_COMBO:
- case AR_IFACE_X_21:
- hc->txc_dtr[x / NCHAN] |= (x % NCHAN == 0) ?
- AR_TXC_DTR_TX0 : AR_TXC_DTR_TX1;
- break;
- }
- }
-
- if(hc->bustype == AR_BUS_PCI)
- hc->orbase[AR_TXC_DTR0 * 4] = hc->txc_dtr[0];
- else
- outb(hc->iobase + AR_TXC_DTR0, hc->txc_dtr[0]);
- if(hc->numports > NCHAN) {
- if(hc->bustype == AR_BUS_PCI)
- hc->orbase[AR_TXC_DTR2 * 4] = hc->txc_dtr[1];
- else
- outb(hc->iobase + AR_TXC_DTR2, hc->txc_dtr[1]);
- }
-
- chanmem = hc->memsize / hc->numports;
- next = 0;
-
- for(x=0;x<hc->numports;x++, sc++) {
- int blk;
-
- sc->sca = hc->sca[x / NCHAN];
-
- for(blk = 0; blk < AR_TX_BLOCKS; blk++) {
- sc->block[blk].txdesc = next;
- bufmem = (16 * 1024) / AR_TX_BLOCKS;
- descneeded = bufmem / AR_BUF_SIZ;
- sc->block[blk].txstart = sc->block[blk].txdesc +
- ((((descneeded * sizeof(sca_descriptor)) /
- AR_BUF_SIZ) + 1) * AR_BUF_SIZ);
- sc->block[blk].txend = next + bufmem;
- sc->block[blk].txmax =
- (sc->block[blk].txend - sc->block[blk].txstart)
- / AR_BUF_SIZ;
- next += bufmem;
-
- TRC(printf("ar%d: blk %d: txdesc %x, txstart %x, "
- "txend %x, txmax %d\n",
- x,
- blk,
- sc->block[blk].txdesc,
- sc->block[blk].txstart,
- sc->block[blk].txend,
- sc->block[blk].txmax));
- }
-
- sc->rxdesc = next;
- bufmem = chanmem - (bufmem * AR_TX_BLOCKS);
- descneeded = bufmem / AR_BUF_SIZ;
- sc->rxstart = sc->rxdesc +
- ((((descneeded * sizeof(sca_descriptor)) /
- AR_BUF_SIZ) + 1) * AR_BUF_SIZ);
- sc->rxend = next + bufmem;
- sc->rxmax = (sc->rxend - sc->rxstart) / AR_BUF_SIZ;
- next += bufmem;
- TRC(printf("ar%d: rxdesc %x, rxstart %x, "
- "rxend %x, rxmax %d\n",
- x, sc->rxdesc, sc->rxstart, sc->rxend, sc->rxmax));
- }
-
- if(hc->bustype == AR_BUS_PCI)
- hc->orbase[AR_PIMCTRL] = AR_PIM_MODEG | AR_PIM_AUTO_LED;
-}
-
-
-/*
- * The things done here are channel independent.
- *
- * Configure the sca waitstates.
- * Configure the global interrupt registers.
- * Enable master dma enable.
- */
-static void
-ar_init_sca(struct ar_hardc *hc, int scano)
-{
- sca_regs *sca;
-
- sca = hc->sca[scano];
- if(hc->bustype == AR_BUS_ISA)
- ARC_SET_SCA(hc->iobase, scano);
-
- /*
- * Do the wait registers.
- * Set everything to 0 wait states.
- */
- sca->pabr0 = 0;
- sca->pabr1 = 0;
- sca->wcrl = 0;
- sca->wcrm = 0;
- sca->wcrh = 0;
-
- /*
- * Configure the interrupt registers.
- * Most are cleared until the interface is configured.
- */
- sca->ier0 = 0x00; /* MSCI interrupts... Not used with dma. */
- sca->ier1 = 0x00; /* DMAC interrupts */
- sca->ier2 = 0x00; /* TIMER interrupts... Not used yet. */
- sca->itcr = 0x00; /* Use ivr and no intr ack */
- sca->ivr = 0x40; /* Fill in the interrupt vector. */
- sca->imvr = 0x40;
-
- /*
- * Configure the timers.
- * XXX Later
- */
-
-
- /*
- * Set the DMA channel priority to rotate between
- * all four channels.
- *
- * Enable all dma channels.
- */
- if(hc->bustype == AR_BUS_PCI) {
- u_char *t;
-
- /*
- * Stupid problem with the PCI interface chip that break
- * things.
- * XXX
- */
- t = (u_char *)sca;
- t[AR_PCI_SCA_PCR] = SCA_PCR_PR2;
- t[AR_PCI_SCA_DMER] = SCA_DMER_EN;
- } else {
- sca->pcr = SCA_PCR_PR2;
- sca->dmer = SCA_DMER_EN;
- }
-}
-
-
-/*
- * Configure the msci
- *
- * NOTE: The serial port configuration is hardcoded at the moment.
- */
-static void
-ar_init_msci(struct ar_softc *sc)
-{
- msci_channel *msci;
-
- msci = &sc->sca->msci[sc->scachan];
-
- if(sc->hc->bustype == AR_BUS_ISA)
- ARC_SET_SCA(sc->hc->iobase, sc->scano);
-
- msci->cmd = SCA_CMD_RESET;
-
- msci->md0 = SCA_MD0_CRC_1 |
- SCA_MD0_CRC_CCITT |
- SCA_MD0_CRC_ENABLE |
- SCA_MD0_MODE_HDLC;
- msci->md1 = SCA_MD1_NOADDRCHK;
- msci->md2 = SCA_MD2_DUPLEX | SCA_MD2_NRZ;
-
- /*
- * Acording to the manual I should give a reset after changing the
- * mode registers.
- */
- msci->cmd = SCA_CMD_RXRESET;
- msci->ctl = SCA_CTL_IDLPAT | SCA_CTL_UDRNC | SCA_CTL_RTS;
-
- /*
- * For now all interfaces are programmed to use the RX clock for
- * the TX clock.
- */
- switch(sc->hc->interface[sc->subunit]) {
- case AR_IFACE_V_35:
- msci->rxs = SCA_RXS_CLK_RXC0 | SCA_RXS_DIV1;
- msci->txs = SCA_TXS_CLK_TXC | SCA_TXS_DIV1;
- break;
- case AR_IFACE_X_21:
- case AR_IFACE_EIA_530:
- case AR_IFACE_COMBO:
- msci->rxs = SCA_RXS_CLK_RXC0 | SCA_RXS_DIV1;
- msci->txs = SCA_TXS_CLK_RX | SCA_TXS_DIV1;
- }
-
- msci->tmc = 153; /* This give 64k for loopback */
-
- /* XXX
- * Disable all interrupts for now. I think if you are using
- * the dmac you don't use these interrupts.
- */
- msci->ie0 = 0;
- msci->ie1 = 0x0C; /* XXX CTS and DCD (DSR on 570I) level change. */
- msci->ie2 = 0;
- msci->fie = 0;
-
- msci->sa0 = 0;
- msci->sa1 = 0;
-
- msci->idl = 0x7E; /* XXX This is what cisco does. */
-
- /*
- * This is what the ARNET diags use.
- */
- msci->rrc = 0x0E;
- msci->trc0 = 0x12;
- msci->trc1 = 0x1F;
-}
-
-/*
- * Configure the rx dma controller.
- */
-static void
-ar_init_rx_dmac(struct ar_softc *sc)
-{
- dmac_channel *dmac;
- sca_descriptor *rxd;
- u_int rxbuf;
- u_int rxda;
- u_int rxda_d;
- int x = 0;
-
- dmac = &sc->sca->dmac[DMAC_RXCH(sc->scachan)];
-
- if(sc->hc->bustype == AR_BUS_ISA)
- ARC_SET_MEM(sc->hc->iobase, sc->rxdesc);
-
- rxd = (sca_descriptor *)(sc->hc->mem_start + (sc->rxdesc&sc->hc->winmsk));
- rxda_d = (u_int)sc->hc->mem_start - (sc->rxdesc & ~sc->hc->winmsk);
-
- for(rxbuf=sc->rxstart;rxbuf<sc->rxend;rxbuf += AR_BUF_SIZ, rxd++) {
- rxda = (u_int)&rxd[1] - rxda_d;
- rxd->cp = (u_short)(rxda & 0xfffful);
-
- x++;
- if(x < 6)
- TRC(printf("Descrp %p, data pt %x, data %x, ",
- rxd, rxda, rxbuf));
-
- rxd->bp = (u_short)(rxbuf & 0xfffful);
- rxd->bpb = (u_char)((rxbuf >> 16) & 0xff);
- rxd->len = 0;
- rxd->stat = 0xff; /* The sca write here when it is finished. */
-
- if(x < 6)
- TRC(printf("bpb %x, bp %x.\n", rxd->bpb, rxd->bp));
- }
- rxd--;
- rxd->cp = (u_short)(sc->rxdesc & 0xfffful);
-
- sc->rxhind = 0;
-
- if(sc->hc->bustype == AR_BUS_ISA)
- ARC_SET_SCA(sc->hc->iobase, sc->scano);
-
- dmac->dsr = 0; /* Disable DMA transfer */
- dmac->dcr = SCA_DCR_ABRT;
-
- /* XXX maybe also SCA_DMR_CNTE */
- dmac->dmr = SCA_DMR_TMOD | SCA_DMR_NF;
- dmac->bfl = AR_BUF_SIZ;
-
- dmac->cda = (u_short)(sc->rxdesc & 0xffff);
- dmac->sarb = (u_char)((sc->rxdesc >> 16) & 0xff);
-
- rxd = (sca_descriptor *)sc->rxstart;
- dmac->eda = (u_short)((u_int)&rxd[sc->rxmax - 1] & 0xffff);
-
- dmac->dir = 0xF0;
-
- dmac->dsr = SCA_DSR_DE;
-}
-
-/*
- * Configure the TX DMA descriptors.
- * Initialize the needed values and chain the descriptors.
- */
-static void
-ar_init_tx_dmac(struct ar_softc *sc)
-{
- dmac_channel *dmac;
- struct buf_block *blkp;
- int blk;
- sca_descriptor *txd;
- u_int txbuf;
- u_int txda;
- u_int txda_d;
-
- dmac = &sc->sca->dmac[DMAC_TXCH(sc->scachan)];
-
- if(sc->hc->bustype == AR_BUS_ISA)
- ARC_SET_MEM(sc->hc->iobase, sc->block[0].txdesc);
-
- for(blk = 0; blk < AR_TX_BLOCKS; blk++) {
- blkp = &sc->block[blk];
- txd = (sca_descriptor *)(sc->hc->mem_start +
- (blkp->txdesc&sc->hc->winmsk));
- txda_d = (u_int)sc->hc->mem_start -
- (blkp->txdesc & ~sc->hc->winmsk);
-
- txbuf=blkp->txstart;
- for(;txbuf<blkp->txend;txbuf += AR_BUF_SIZ, txd++) {
- txda = (u_int)&txd[1] - txda_d;
- txd->cp = (u_short)(txda & 0xfffful);
-
- txd->bp = (u_short)(txbuf & 0xfffful);
- txd->bpb = (u_char)((txbuf >> 16) & 0xff);
- TRC(printf("ar%d: txbuf %x, bpb %x, bp %x\n",
- sc->unit, txbuf, txd->bpb, txd->bp));
- txd->len = 0;
- txd->stat = 0;
- }
- txd--;
- txd->cp = (u_short)(blkp->txdesc & 0xfffful);
-
- blkp->txtail = (u_int)txd - (u_int)sc->hc->mem_start;
- TRC(printf("TX Descriptors start %x, end %x.\n",
- blkp->txdesc,
- blkp->txtail));
- }
-
- if(sc->hc->bustype == AR_BUS_ISA)
- ARC_SET_SCA(sc->hc->iobase, sc->scano);
-
- dmac->dsr = 0; /* Disable DMA */
- dmac->dcr = SCA_DCR_ABRT;
- dmac->dmr = SCA_DMR_TMOD | SCA_DMR_NF;
- dmac->dir = SCA_DIR_EOT | SCA_DIR_BOF | SCA_DIR_COF;
-
- dmac->sarb = (u_char)((sc->block[0].txdesc >> 16) & 0xff);
-}
-
-
-/*
- * Look through the descriptors to see if there is a complete packet
- * available. Stop if we get to where the sca is busy.
- *
- * Return the length and status of the packet.
- * Return nonzero if there is a packet available.
- *
- * NOTE:
- * It seems that we get the interrupt a bit early. The updateing of
- * descriptor values is not always completed when this is called.
- */
-static int
-ar_packet_avail(struct ar_softc *sc,
- int *len,
- u_char *rxstat)
-{
- dmac_channel *dmac;
- sca_descriptor *rxdesc;
- sca_descriptor *endp;
- sca_descriptor *cda;
-
- if(sc->hc->bustype == AR_BUS_ISA)
- ARC_SET_SCA(sc->hc->iobase, sc->scano);
- dmac = &sc->sca->dmac[DMAC_RXCH(sc->scachan)];
- cda = (sca_descriptor *)(sc->hc->mem_start +
- ((((u_int)dmac->sarb << 16) + dmac->cda) & sc->hc->winmsk));
-
- if(sc->hc->bustype == AR_BUS_ISA)
- ARC_SET_MEM(sc->hc->iobase, sc->rxdesc);
- rxdesc = (sca_descriptor *)
- (sc->hc->mem_start + (sc->rxdesc & sc->hc->winmsk));
- endp = rxdesc;
- rxdesc = &rxdesc[sc->rxhind];
- endp = &endp[sc->rxmax];
-
- *len = 0;
-
- while(rxdesc != cda) {
- *len += rxdesc->len;
-
- if(rxdesc->stat & SCA_DESC_EOM) {
- *rxstat = rxdesc->stat;
- TRC(printf("ar%d: PKT AVAIL len %d, %x.\n",
- sc->unit, *len, *rxstat));
- return (1);
- }
-
- rxdesc++;
- if(rxdesc == endp)
- rxdesc = (sca_descriptor *)
- (sc->hc->mem_start + (sc->rxdesc & sc->hc->winmsk));
- }
-
- *len = 0;
- *rxstat = 0;
- return (0);
-}
-
-
-/*
- * Copy a packet from the on card memory into a provided mbuf.
- * Take into account that buffers wrap and that a packet may
- * be larger than a buffer.
- */
-static void
-ar_copy_rxbuf(struct mbuf *m,
- struct ar_softc *sc,
- int len)
-{
- sca_descriptor *rxdesc;
- u_int rxdata;
- u_int rxmax;
- u_int off = 0;
- u_int tlen;
-
- rxdata = sc->rxstart + (sc->rxhind * AR_BUF_SIZ);
- rxmax = sc->rxstart + (sc->rxmax * AR_BUF_SIZ);
-
- rxdesc = (sca_descriptor *)
- (sc->hc->mem_start + (sc->rxdesc & sc->hc->winmsk));
- rxdesc = &rxdesc[sc->rxhind];
-
- while(len) {
- tlen = (len < AR_BUF_SIZ) ? len : AR_BUF_SIZ;
- if(sc->hc->bustype == AR_BUS_ISA)
- ARC_SET_MEM(sc->hc->iobase, rxdata);
- bcopy(sc->hc->mem_start + (rxdata & sc->hc->winmsk),
- mtod(m, caddr_t) + off,
- tlen);
-
- off += tlen;
- len -= tlen;
-
- if(sc->hc->bustype == AR_BUS_ISA)
- ARC_SET_MEM(sc->hc->iobase, sc->rxdesc);
- rxdesc->len = 0;
- rxdesc->stat = 0xff;
-
- rxdata += AR_BUF_SIZ;
- rxdesc++;
- if(rxdata == rxmax) {
- rxdata = sc->rxstart;
- rxdesc = (sca_descriptor *)
- (sc->hc->mem_start + (sc->rxdesc & sc->hc->winmsk));
- }
- }
-}
-
-/*
- * If single is set, just eat a packet. Otherwise eat everything up to
- * where cda points. Update pointers to point to the next packet.
- */
-static void
-ar_eat_packet(struct ar_softc *sc, int single)
-{
- dmac_channel *dmac;
- sca_descriptor *rxdesc;
- sca_descriptor *endp;
- sca_descriptor *cda;
- int loopcnt = 0;
- u_char stat;
-
- if(sc->hc->bustype == AR_BUS_ISA)
- ARC_SET_SCA(sc->hc->iobase, sc->scano);
- dmac = &sc->sca->dmac[DMAC_RXCH(sc->scachan)];
- cda = (sca_descriptor *)(sc->hc->mem_start +
- ((((u_int)dmac->sarb << 16) + dmac->cda) & sc->hc->winmsk));
-
- /*
- * Loop until desc->stat == (0xff || EOM)
- * Clear the status and length in the descriptor.
- * Increment the descriptor.
- */
- if(sc->hc->bustype == AR_BUS_ISA)
- ARC_SET_MEM(sc->hc->iobase, sc->rxdesc);
- rxdesc = (sca_descriptor *)
- (sc->hc->mem_start + (sc->rxdesc & sc->hc->winmsk));
- endp = rxdesc;
- rxdesc = &rxdesc[sc->rxhind];
- endp = &endp[sc->rxmax];
-
- while(rxdesc != cda) {
- loopcnt++;
- if(loopcnt > sc->rxmax) {
- printf("ar%d: eat pkt %d loop, cda %p, "
- "rxdesc %p, stat %x.\n",
- sc->unit,
- loopcnt,
- (void *)cda,
- (void *)rxdesc,
- rxdesc->stat);
- break;
- }
-
- stat = rxdesc->stat;
-
- rxdesc->len = 0;
- rxdesc->stat = 0xff;
-
- rxdesc++;
- sc->rxhind++;
- if(rxdesc == endp) {
- rxdesc = (sca_descriptor *)
- (sc->hc->mem_start + (sc->rxdesc & sc->hc->winmsk));
- sc->rxhind = 0;
- }
-
- if(single && (stat == SCA_DESC_EOM))
- break;
- }
-
- /*
- * Update the eda to the previous descriptor.
- */
- if(sc->hc->bustype == AR_BUS_ISA)
- ARC_SET_SCA(sc->hc->iobase, sc->scano);
-
- rxdesc = (sca_descriptor *)sc->rxdesc;
- rxdesc = &rxdesc[(sc->rxhind + sc->rxmax - 2 ) % sc->rxmax];
-
- sc->sca->dmac[DMAC_RXCH(sc->scachan)].eda =
- (u_short)((u_int)rxdesc & 0xffff);
-}
-
-
-/*
- * While there is packets available in the rx buffer, read them out
- * into mbufs and ship them off.
- */
-static void
-ar_get_packets(struct ar_softc *sc)
-{
- sca_descriptor *rxdesc;
- struct mbuf *m = NULL;
- int i;
- int len;
- u_char rxstat;
-#ifdef NETGRAPH
- int error;
-#endif
-
- while(ar_packet_avail(sc, &len, &rxstat)) {
- TRC(printf("apa: len %d, rxstat %x\n", len, rxstat));
- if(((rxstat & SCA_DESC_ERRORS) == 0) && (len < MCLBYTES)) {
- MGETHDR(m, M_DONTWAIT, MT_DATA);
- if(m == NULL) {
- /* eat packet if get mbuf fail!! */
- ar_eat_packet(sc, 1);
- continue;
- }
-#ifndef NETGRAPH
- m->m_pkthdr.rcvif = &sc->ifsppp.pp_if;
-#else /* NETGRAPH */
- m->m_pkthdr.rcvif = NULL;
- sc->inbytes += len;
- sc->inlast = 0;
-#endif /* NETGRAPH */
- m->m_pkthdr.len = m->m_len = len;
- if(len > MHLEN) {
- MCLGET(m, M_DONTWAIT);
- if((m->m_flags & M_EXT) == 0) {
- m_freem(m);
- ar_eat_packet(sc, 1);
- continue;
- }
- }
- ar_copy_rxbuf(m, sc, len);
-#ifndef NETGRAPH
- if(sc->ifsppp.pp_if.if_bpf)
- bpf_mtap(&sc->ifsppp.pp_if, m);
- sppp_input(&sc->ifsppp.pp_if, m);
- sc->ifsppp.pp_if.if_ipackets++;
-#else /* NETGRAPH */
- NG_SEND_DATA_ONLY(error, sc->hook, m);
- sc->ipackets++;
-#endif /* NETGRAPH */
-
- /*
- * Update the eda to the previous descriptor.
- */
- i = (len + AR_BUF_SIZ - 1) / AR_BUF_SIZ;
- sc->rxhind = (sc->rxhind + i) % sc->rxmax;
-
- if(sc->hc->bustype == AR_BUS_ISA)
- ARC_SET_SCA(sc->hc->iobase, sc->scano);
-
- rxdesc = (sca_descriptor *)sc->rxdesc;
- rxdesc =
- &rxdesc[(sc->rxhind + sc->rxmax - 2 ) % sc->rxmax];
-
- sc->sca->dmac[DMAC_RXCH(sc->scachan)].eda =
- (u_short)((u_int)rxdesc & 0xffff);
- } else {
- int tries = 5;
-
- while((rxstat == 0xff) && --tries)
- ar_packet_avail(sc, &len, &rxstat);
-
- /*
- * It look like we get an interrupt early
- * sometimes and then the status is not
- * filled in yet.
- */
- if(tries && (tries != 5))
- continue;
-
- ar_eat_packet(sc, 1);
-
-#ifndef NETGRAPH
- sc->ifsppp.pp_if.if_ierrors++;
-#else /* NETGRAPH */
- sc->ierrors[0]++;
-#endif /* NETGRAPH */
-
- if(sc->hc->bustype == AR_BUS_ISA)
- ARC_SET_SCA(sc->hc->iobase, sc->scano);
-
- TRCL(printf("ar%d: Receive error chan %d, "
- "stat %x, msci st3 %x,"
- "rxhind %d, cda %x, eda %x.\n",
- sc->unit,
- sc->scachan,
- rxstat,
- sc->sca->msci[sc->scachan].st3,
- sc->rxhind,
- sc->sca->dmac[
- DMAC_RXCH(sc->scachan)].cda,
- sc->sca->dmac[
- DMAC_RXCH(sc->scachan)].eda));
- }
- }
-}
-
-
-/*
- * All DMA interrupts come here.
- *
- * Each channel has two interrupts.
- * Interrupt A for errors and Interrupt B for normal stuff like end
- * of transmit or receive dmas.
- */
-static void
-ar_dmac_intr(struct ar_hardc *hc, int scano, u_char isr1)
-{
- u_char dsr;
- u_char dotxstart = isr1;
- int mch;
- struct ar_softc *sc;
- sca_regs *sca;
- dmac_channel *dmac;
-
- sca = hc->sca[scano];
- mch = 0;
- /*
- * Shortcut if there is no interrupts for dma channel 0 or 1
- */
- if((isr1 & 0x0F) == 0) {
- mch = 1;
- isr1 >>= 4;
- }
-
- do {
- sc = &hc->sc[mch + (NCHAN * scano)];
-
- /*
- * Transmit channel
- */
- if(isr1 & 0x0C) {
- dmac = &sca->dmac[DMAC_TXCH(mch)];
-
- if(hc->bustype == AR_BUS_ISA)
- ARC_SET_SCA(hc->iobase, scano);
-
- dsr = dmac->dsr;
- dmac->dsr = dsr;
-
- /* Counter overflow */
- if(dsr & SCA_DSR_COF) {
- printf("ar%d: TX DMA Counter overflow, "
- "txpacket no %lu.\n",
- sc->unit,
-#ifndef NETGRAPH
- sc->ifsppp.pp_if.if_opackets);
- sc->ifsppp.pp_if.if_oerrors++;
-#else /* NETGRAPH */
- sc->opackets);
- sc->oerrors++;
-#endif /* NETGRAPH */
- }
-
- /* Buffer overflow */
- if(dsr & SCA_DSR_BOF) {
- printf("ar%d: TX DMA Buffer overflow, "
- "txpacket no %lu, dsr %02x, "
- "cda %04x, eda %04x.\n",
- sc->unit,
-#ifndef NETGRAPH
- sc->ifsppp.pp_if.if_opackets,
-#else /* NETGRAPH */
- sc->opackets,
-#endif /* NETGRAPH */
- dsr,
- dmac->cda,
- dmac->eda);
-#ifndef NETGRAPH
- sc->ifsppp.pp_if.if_oerrors++;
-#else /* NETGRAPH */
- sc->oerrors++;
-#endif /* NETGRAPH */
- }
-
- /* End of Transfer */
- if(dsr & SCA_DSR_EOT) {
- /*
- * This should be the most common case.
- *
- * Clear the IFF_OACTIVE flag.
- *
- * Call arstart to start a new transmit if
- * there is data to transmit.
- */
- sc->xmit_busy = 0;
-#ifndef NETGRAPH
- sc->ifsppp.pp_if.if_flags &= ~IFF_OACTIVE;
- sc->ifsppp.pp_if.if_timer = 0;
-#else /* NETGRAPH */
- /* XXX c->ifsppp.pp_if.if_flags &= ~IFF_OACTIVE; */
- sc->out_dog = 0; /* XXX */
-#endif /* NETGRAPH */
-
- if(sc->txb_inuse && --sc->txb_inuse)
- ar_xmit(sc);
- }
- }
-
- /*
- * Receive channel
- */
- if(isr1 & 0x03) {
- dmac = &sca->dmac[DMAC_RXCH(mch)];
-
- if(hc->bustype == AR_BUS_ISA)
- ARC_SET_SCA(hc->iobase, scano);
-
- dsr = dmac->dsr;
- dmac->dsr = dsr;
-
- TRC(printf("AR: RX DSR %x\n", dsr));
-
- /* End of frame */
- if(dsr & SCA_DSR_EOM) {
- TRC(int tt = sc->ifsppp.pp_if.if_ipackets;)
- TRC(int ind = sc->rxhind;)
-
- ar_get_packets(sc);
- TRC(
-#ifndef NETGRAPH
- if(tt == sc->ifsppp.pp_if.if_ipackets) {
-#else /* NETGRAPH */
- if(tt == sc->ipackets) {
-#endif /* NETGRAPH */
- sca_descriptor *rxdesc;
- int i;
-
- if(hc->bustype == AR_BUS_ISA)
- ARC_SET_SCA(hc->iobase, scano);
- printf("AR: RXINTR isr1 %x, dsr %x, "
- "no data %d pkts, orxhind %d.\n",
- dotxstart,
- dsr,
- tt,
- ind);
- printf("AR: rxdesc %x, rxstart %x, "
- "rxend %x, rxhind %d, "
- "rxmax %d.\n",
- sc->rxdesc,
- sc->rxstart,
- sc->rxend,
- sc->rxhind,
- sc->rxmax);
- printf("AR: cda %x, eda %x.\n",
- dmac->cda,
- dmac->eda);
-
- if(sc->hc->bustype == AR_BUS_ISA)
- ARC_SET_MEM(sc->hc->iobase,
- sc->rxdesc);
- rxdesc = (sca_descriptor *)
- (sc->hc->mem_start +
- (sc->rxdesc & sc->hc->winmsk));
- rxdesc = &rxdesc[sc->rxhind];
- for(i=0;i<3;i++,rxdesc++)
- printf("AR: rxdesc->stat %x, "
- "len %d.\n",
- rxdesc->stat,
- rxdesc->len);
- })
- }
-
- /* Counter overflow */
- if(dsr & SCA_DSR_COF) {
- printf("ar%d: RX DMA Counter overflow, "
- "rxpkts %lu.\n",
- sc->unit,
-#ifndef NETGRAPH
- sc->ifsppp.pp_if.if_ipackets);
- sc->ifsppp.pp_if.if_ierrors++;
-#else /* NETGRAPH */
- sc->ipackets);
- sc->ierrors[1]++;
-#endif /* NETGRAPH */
- }
-
- /* Buffer overflow */
- if(dsr & SCA_DSR_BOF) {
- if(hc->bustype == AR_BUS_ISA)
- ARC_SET_SCA(hc->iobase, scano);
- printf("ar%d: RX DMA Buffer overflow, "
- "rxpkts %lu, rxind %d, "
- "cda %x, eda %x, dsr %x.\n",
- sc->unit,
-#ifndef NETGRAPH
- sc->ifsppp.pp_if.if_ipackets,
-#else /* NETGRAPH */
- sc->ipackets,
-#endif /* NETGRAPH */
- sc->rxhind,
- dmac->cda,
- dmac->eda,
- dsr);
- /*
- * Make sure we eat as many as possible.
- * Then get the system running again.
- */
- ar_eat_packet(sc, 0);
-#ifndef NETGRAPH
- sc->ifsppp.pp_if.if_ierrors++;
-#else /* NETGRAPH */
- sc->ierrors[2]++;
-#endif /* NETGRAPH */
- if(hc->bustype == AR_BUS_ISA)
- ARC_SET_SCA(hc->iobase, scano);
- sca->msci[mch].cmd = SCA_CMD_RXMSGREJ;
- dmac->dsr = SCA_DSR_DE;
-
- TRC(printf("ar%d: RX DMA Buffer overflow, "
- "rxpkts %lu, rxind %d, "
- "cda %x, eda %x, dsr %x. After\n",
- sc->unit,
- sc->ifsppp.pp_if.if_ipackets,
- sc->rxhind,
- dmac->cda,
- dmac->eda,
- dmac->dsr);)
- }
-
- /* End of Transfer */
- if(dsr & SCA_DSR_EOT) {
- /*
- * If this happen, it means that we are
- * receiving faster than what the processor
- * can handle.
- *
- * XXX We should enable the dma again.
- */
- printf("ar%d: RX End of transfer, rxpkts %lu.\n",
- sc->unit,
-#ifndef NETGRAPH
- sc->ifsppp.pp_if.if_ipackets);
- sc->ifsppp.pp_if.if_ierrors++;
-#else /* NETGRAPH */
- sc->ipackets);
- sc->ierrors[3]++;
-#endif /* NETGRAPH */
- }
- }
-
- isr1 >>= 4;
-
- mch++;
- }while((mch<NCHAN) && isr1);
-
- /*
- * Now that we have done all the urgent things, see if we
- * can fill the transmit buffers.
- */
- for(mch = 0; mch < NCHAN; mch++) {
- if(dotxstart & 0x0C) {
- sc = &hc->sc[mch + (NCHAN * scano)];
-#ifndef NETGRAPH
- arstart(&sc->ifsppp.pp_if);
-#else /* NETGRAPH */
- arstart(sc);
-#endif /* NETGRAPH */
- }
- dotxstart >>= 4;
- }
-}
-
-static void
-ar_msci_intr(struct ar_hardc *hc, int scano, u_char isr0)
-{
- printf("arc%d: ARINTR: MSCI\n", hc->cunit);
-}
-
-static void
-ar_timer_intr(struct ar_hardc *hc, int scano, u_char isr2)
-{
- printf("arc%d: ARINTR: TIMER\n", hc->cunit);
-}
-
-
-#ifdef NETGRAPH
-/*****************************************
- * Device timeout/watchdog routine.
- * called once per second.
- * checks to see that if activity was expected, that it hapenned.
- * At present we only look to see if expected output was completed.
- */
-static void
-ngar_watchdog_frame(void * arg)
-{
- struct ar_softc * sc = arg;
- int s;
- int speed;
-
- if(sc->running == 0)
- return; /* if we are not running let timeouts die */
- /*
- * calculate the apparent throughputs
- * XXX a real hack
- */
- s = splimp();
- speed = sc->inbytes - sc->lastinbytes;
- sc->lastinbytes = sc->inbytes;
- if ( sc->inrate < speed )
- sc->inrate = speed;
- speed = sc->outbytes - sc->lastoutbytes;
- sc->lastoutbytes = sc->outbytes;
- if ( sc->outrate < speed )
- sc->outrate = speed;
- sc->inlast++;
- splx(s);
-
- if ((sc->inlast > QUITE_A_WHILE)
- && (sc->out_deficit > LOTS_OF_PACKETS)) {
- log(LOG_ERR, "ar%d: No response from remote end\n", sc->unit);
- s = splimp();
- ar_down(sc);
- ar_up(sc);
- sc->inlast = sc->out_deficit = 0;
- splx(s);
- } else if ( sc->xmit_busy ) { /* no TX -> no TX timeouts */
- if (sc->out_dog == 0) {
- log(LOG_ERR, "ar%d: Transmit failure.. no clock?\n",
- sc->unit);
- s = splimp();
- arwatchdog(sc);
-#if 0
- ar_down(sc);
- ar_up(sc);
-#endif
- splx(s);
- sc->inlast = sc->out_deficit = 0;
- } else {
- sc->out_dog--;
- }
- }
- sc->handle = timeout(ngar_watchdog_frame, sc, hz);
-}
-
-/***********************************************************************
- * This section contains the methods for the Netgraph interface
- ***********************************************************************/
-/*
- * It is not possible or allowable to create a node of this type.
- * If the hardware exists, it will already have created it.
- */
-static int
-ngar_constructor(node_p node)
-{
- return (EINVAL);
-}
-
-/*
- * give our ok for a hook to be added...
- * If we are not running this should kick the device into life.
- * The hook's private info points to our stash of info about that
- * channel.
- */
-static int
-ngar_newhook(node_p node, hook_p hook, const char *name)
-{
- struct ar_softc * sc = NG_NODE_PRIVATE(node);
-
- /*
- * check if it's our friend the debug hook
- */
- if (strcmp(name, NG_AR_HOOK_DEBUG) == 0) {
- NG_HOOK_SET_PRIVATE(hook, NULL); /* paranoid */
- sc->debug_hook = hook;
- return (0);
- }
-
- /*
- * Check for raw mode hook.
- */
- if (strcmp(name, NG_AR_HOOK_RAW) != 0) {
- return (EINVAL);
- }
- NG_HOOK_SET_PRIVATE(hook, sc);
- sc->hook = hook;
- sc->datahooks++;
- ar_up(sc);
- return (0);
-}
-
-/*
- * incoming messages.
- * Just respond to the generic TEXT_STATUS message
- */
-static int
-ngar_rcvmsg(node_p node, item_p item, hook_p lasthook)
-{
- struct ar_softc * sc;
- struct ng_mesg *resp = NULL;
- int error = 0;
- struct ng_mesg *msg;
-
- NGI_GET_MSG(item, msg);
- sc = NG_NODE_PRIVATE(node);
- switch (msg->header.typecookie) {
- case NG_AR_COOKIE:
- error = EINVAL;
- break;
- case NGM_GENERIC_COOKIE:
- switch(msg->header.cmd) {
- case NGM_TEXT_STATUS: {
- char *arg;
- int pos = 0;
-
- int resplen = sizeof(struct ng_mesg) + 512;
- NG_MKRESPONSE(resp, msg, resplen, M_NOWAIT);
- if (resp == NULL) {
- error = ENOMEM;
- break;
- }
- arg = (resp)->data;
- pos = sprintf(arg, "%ld bytes in, %ld bytes out\n"
- "highest rate seen: %ld B/S in, %ld B/S out\n",
- sc->inbytes, sc->outbytes,
- sc->inrate, sc->outrate);
- pos += sprintf(arg + pos,
- "%ld output errors\n",
- sc->oerrors);
- pos += sprintf(arg + pos,
- "ierrors = %ld, %ld, %ld, %ld\n",
- sc->ierrors[0],
- sc->ierrors[1],
- sc->ierrors[2],
- sc->ierrors[3]);
-
- resp->header.arglen = pos + 1;
- break;
- }
- default:
- error = EINVAL;
- break;
- }
- break;
- default:
- error = EINVAL;
- break;
- }
- /* Take care of synchronous response, if any */
- NG_RESPOND_MSG(error, node, item, resp);
- NG_FREE_MSG(msg);
- return (error);
-}
-
-/*
- * get data from another node and transmit it to the correct channel
- */
-static int
-ngar_rcvdata(hook_p hook, item_p item)
-{
- int s;
- int error = 0;
- struct ar_softc * sc = NG_NODE_PRIVATE(NG_HOOK_NODE(hook));
- struct ifqueue *xmitq_p;
- struct mbuf *m;
- meta_p meta;
-
- NGI_GET_M(item, m);
- NGI_GET_META(item, meta);
- NG_FREE_ITEM(item);
- /*
- * data doesn't come in from just anywhere (e.g control hook)
- */
- if ( NG_HOOK_PRIVATE(hook) == NULL) {
- error = ENETDOWN;
- goto bad;
- }
-
- /*
- * Now queue the data for when it can be sent
- */
- if (meta && meta->priority > 0) {
- xmitq_p = (&sc->xmitq_hipri);
- } else {
- xmitq_p = (&sc->xmitq);
- }
- s = splimp();
- IF_LOCK(xmitq_p);
- if (_IF_QFULL(xmitq_p)) {
- _IF_DROP(xmitq_p);
- IF_UNLOCK(xmitq_p);
- splx(s);
- error = ENOBUFS;
- goto bad;
- }
- _IF_ENQUEUE(xmitq_p, m);
- IF_UNLOCK(xmitq_p);
- arstart(sc);
- splx(s);
- return (0);
-
-bad:
- /*
- * It was an error case.
- * check if we need to free the mbuf, and then return the error
- */
- NG_FREE_M(m);
- NG_FREE_META(meta);
- return (error);
-}
-
-/*
- * do local shutdown processing..
- * this node will refuse to go away, unless the hardware says to..
- * don't unref the node, or remove our name. just clear our links up.
- */
-static int
-ngar_shutdown(node_p node)
-{
- struct ar_softc * sc = NG_NODE_PRIVATE(node);
-
- ar_down(sc);
- NG_NODE_UNREF(node);
- /* XXX need to drain the output queues! */
-
- /* The node is dead, long live the node! */
- /* stolen from the attach routine */
- if (ng_make_node_common(&typestruct, &sc->node) != 0)
- return (0);
- sprintf(sc->nodename, "%s%d", NG_AR_NODE_TYPE, sc->unit);
- if (ng_name_node(sc->node, sc->nodename)) {
- sc->node = NULL;
- printf("node naming failed\n");
- NG_NODE_UNREF(sc->node); /* node dissappears */
- return (0);
- }
- NG_NODE_SET_PRIVATE(sc->node, sc);
- sc->running = 0;
- return (0);
-}
-
-/* already linked */
-static int
-ngar_connect(hook_p hook)
-{
- /* probably not at splnet, force outward queueing */
- NG_HOOK_FORCE_QUEUE(NG_HOOK_PEER(hook));
- /* be really amiable and just say "YUP that's OK by me! " */
- return (0);
-}
-
-/*
- * notify on hook disconnection (destruction)
- *
- * Invalidate the private data associated with this dlci.
- * For this type, removal of the last link resets tries to destroy the node.
- * As the device still exists, the shutdown method will not actually
- * destroy the node, but reset the device and leave it 'fresh' :)
- *
- * The node removal code will remove all references except that owned by the
- * driver.
- */
-static int
-ngar_disconnect(hook_p hook)
-{
- struct ar_softc * sc = NG_NODE_PRIVATE(NG_HOOK_NODE(hook));
- int s;
- /*
- * If it's the data hook, then free resources etc.
- */
- if (NG_HOOK_PRIVATE(hook)) {
- s = splimp();
- sc->datahooks--;
- if (sc->datahooks == 0)
- ar_down(sc);
- splx(s);
- } else {
- sc->debug_hook = NULL;
- }
- return (0);
-}
-
-/*
- * called during bootup
- * or LKM loading to put this type into the list of known modules
- */
-static void
-ngar_init(void *ignored)
-{
- if (ng_newtype(&typestruct))
- printf("ngar install failed\n");
- ngar_done_init = 1;
-}
-#endif /* NETGRAPH */
-
-/*
- ********************************* END ************************************
- */
diff --git a/sys/i386/isa/if_ar.h b/sys/i386/isa/if_ar.h
deleted file mode 100644
index 875e42a..0000000
--- a/sys/i386/isa/if_ar.h
+++ /dev/null
@@ -1,51 +0,0 @@
-/*
- * if_ar.h
- *
- * Copyright (C) 1997-1999 Whistle Communications Inc.
- * All rights reserved.
- *
- * Subject to the following obligations and disclaimer of warranty, use and
- * redistribution of this software, in source or object code forms, with or
- * without modifications are expressly permitted by Whistle Communications;
- * provided, however, that:
- * 1. Any and all reproductions of the source or object code must include the
- * copyright notice above and the following disclaimer of warranties; and
- * 2. No rights are granted, in any manner or form, to use Whistle
- * Communications, Inc. trademarks, including the mark "WHISTLE
- * COMMUNICATIONS" on advertising, endorsements, or otherwise except as
- * such appears in the above copyright notice or in the software.
- *
- * THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
- * TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
- * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE,
- * INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
- * WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY
- * REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS
- * SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
- * IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES
- * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
- * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
- * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER 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 WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
- * OF SUCH DAMAGE.
- *
- * $FreeBSD$
- */
-
-#ifndef _I386_ISA_IF_AR_H_
-#define _I386_ISA_IF_AR_H_
-
-/* Node type name and type cookie */
-#define NG_AR_NODE_TYPE "sync_ar"
-#define NG_AR_COOKIE 860552149
-
-/* Netgraph hooks */
-#define NG_AR_HOOK_DEBUG "debug"
-#define NG_AR_HOOK_RAW "rawdata"
-
-#endif /* _I386_ISA_IF_AR_H_ */
-
diff --git a/sys/i386/isa/if_arregs.h b/sys/i386/isa/if_arregs.h
deleted file mode 100644
index 552d20e..0000000
--- a/sys/i386/isa/if_arregs.h
+++ /dev/null
@@ -1,227 +0,0 @@
-/*
- * Copyright (c) 1995 - 2001 John Hay. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the author nor the names of any co-contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY [your name] AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * $FreeBSD$
- */
-#ifndef _IF_ARREGS_H_
-#define _IF_ARREGS_H_
-
-#define NCHAN 2 /* A HD64570 chip have 2 channels */
-#define NPORT 4 /* A ArNet board can have 4 ports or */
- /* channels */
-
-#define AR_BUF_SIZ 512
-#define AR_TX_BLOCKS 2
-#define ARC_IO_SIZ 0x10
-#define ARC_WIN_SIZ 0x00004000
-#define ARC_WIN_MSK (ARC_WIN_SIZ - 1)
-#define ARC_WIN_SHFT 14
-
-/* Some PCI specific offsets. */
-#define AR_PCI_SCA_1_OFFSET 0x00040000
-#define AR_PCI_SCA_2_OFFSET 0x00040400
-#define AR_PCI_ORBASE_OFFSET 0x00041000
-#define AR_PCI_SCA_PCR 0x0208
-#define AR_PCI_SCA_DMER 0x0309
-/* PCI Legacy (below 1M) offsets. */
-#define AR_PCI_L_SCA_1_OFFSET 0x00004000
-#define AR_PCI_L_SCA_2_OFFSET 0x00004400
-#define AR_PCI_L_ORBASE_OFFSET 0x00005000
-
-#define AR_ID_5 0x00 /* RO, Card probe '5' */
-#define AR_ID_7 0x01 /* RO, Card probe '7' */
-#define AR_ID_0 0x02 /* RO, Card probe '0' */
-#define AR_BMI 0x03 /* RO, Bus, mem and interface type */
-#define AR_REV 0x04 /* RO, Adapter revision */
-#define AR_PNUM 0x05 /* RO, Port number */
-#define AR_HNDSH 0x06 /* RO, Supported handshake */
-#define AR_ISTAT 0x07 /* RO, DCD and Interrupt status */
-#define AR_MSCA_EN 0x08 /* WO, Memory and SCA enable */
-#define AR_TXC_DTR0 0x09 /* WO, Tx Clock and DTR control 0 + 1 */
-#define AR_SEC_PAL 0x0A /* RW, Security PAL */
-#define AR_INT_ACK0 0x0B /* RO, Interrupt Acknowledge 0 + 1 */
-#define AR_INT_SEL 0x0C /* RW, Interrupt Select */
-#define AR_MEM_SEL 0x0D /* RW, Memory Select */
-#define AR_INT_ACK2 0x0E /* RO, Interrupt Acknowledge 2 + 3 */
-#define AR_TXC_DTR2 0x0E /* WO, Tx Clock and DTR control 2 + 3 */
-/* PCI only */
-#define AR_PIMCTRL 0x4C /* RW, PIM and LEDs */
-#define AR_INT_SCB 0x50 /* RO, Interrupt Scoreboard */
-
-#define AR_REV_MSK 0x0F
-#define AR_WSIZ_MSK 0xE0
-#define AR_WSIZ_SHFT 5
-/* Bus memory and interface type */
-#define AR_BUS_MSK 0x03
-#define AR_BUS_ISA 0x00
-#define AR_BUS_MCA 0x01
-#define AR_BUS_EISA 0x02
-#define AR_BUS_PCI 0x03
-
-#define AR_MEM_MSK 0x1C
-#define AR_MEM_SHFT 0x02
-#define AR_MEM_64K 0x00
-#define AR_MEM_128K 0x04
-#define AR_MEM_256K 0x08
-#define AR_MEM_512K 0x0C
-
-/*
- * EIA-232
- * V.35/EIA-232
- * EIA-530
- * X.21
- * EIA-530/X.21 Combo
- */
-#define AR_IFACE_MSK 0xE0
-#define AR_IFACE_SHFT 0x05
-#define AR_IFACE_EIA_232 0x00 /* Only on the 570 card, not 570i */
-#define AR_IFACE_V_35 0x20 /* Selectable between V.35 and EIA-232 */
-#define AR_IFACE_EIA_530 0x40
-#define AR_IFACE_X_21 0x60
-#define AR_IFACE_COMBO 0xC0 /* X.21 / EIA-530 */
-#define AR_IFACE_PIM 0xE0 /* PIM module */
-#define AR_IFACE_LOOPBACK 0xFE
-#define AR_IFACE_UNKNOWN 0xFF
-
-/* Supported Handshake signals */
-#define AR_SHSK_DTR 0x01
-#define AR_SHSK_RTS 0x02
-#define AR_SHSK_CTS 0x10
-#define AR_SHSK_DSR 0x20
-#define AR_SHSK_RI 0x40
-#define AR_SHSK_DCD 0x80
-
-/* DCD and Interrupt status */
-#define AR_BD_INT 0x01
-#define AR_INT_0 0x20
-#define AR_INT_1 0x40
-
-#define AR_DCD_MSK 0x1E
-#define AR_DCD_SHFT 0x01
-#define AR_DCD_0 0x02
-#define AR_DCD_1 0x04
-#define AR_DCD_2 0x08
-#define AR_DCD_3 0x10
-
-/* Memory and SCA enable */
-#define AR_WIN_MSK 0x1F
-
-#define AR_SEL_SCA_0 0x00
-#define AR_SEL_SCA_1 0x20
-#define AR_ENA_SCA 0x40
-#define AR_ENA_MEM 0x80
-
-/* Transmit Clock and DTR and RESET */
-#define AR_TXC_DTR_TX0 0x01
-#define AR_TXC_DTR_TX1 0x02
-#define AR_TXC_DTR_DTR0 0x04
-#define AR_TXC_DTR_DTR1 0x08
-#define AR_TXC_DTR_TXCS0 0x10
-#define AR_TXC_DTR_TXCS1 0x20
-#define AR_TXC_DTR_NOTRESET 0x40
-#define AR_TXC_DTR_RESET 0x00
-
-/* Interrupt select register */
-#define AR_INTS_CEN 0x01
-#define AR_INTS_ISEL0 0x02
-#define AR_INTS_ISEL1 0x04
-#define AR_INTS_ISEL2 0x08
-#define AR_INTS_CMA14 0x10
-#define AR_INTS_CMA15 0x20
-
-/* Advanced PIM Control */
-#define AR_PIM_STROBE 0x01
-#define AR_PIM_DATA 0x02
-#define AR_PIM_MODEG 0x04
-#define AR_PIM_A2D_STROBE 0x04
-#define AR_PIM_MODEY 0x08
-#define AR_PIM_A2D_DOUT 0x08
-#define AR_PIM_AUTO_LED 0x10
-#define AR_PIM_INT 0x20
-
-#define AR_PIM_RESET 0x00 /* MODEG and MODEY 0 */
-#define AR_PIM_READ AR_PIM_MODEG
-#define AR_PIM_WRITE AR_PIM_MODEY
-
-#define ARC_GET_WIN(addr) ((addr >> ARC_WIN_SHFT) & AR_WIN_MSK)
-
-#define ARC_SET_MEM(iobase,win) outb(iobase+AR_MSCA_EN, AR_ENA_MEM | \
- ARC_GET_WIN(win))
-#define ARC_SET_SCA(iobase,ch) outb(iobase+AR_MSCA_EN, AR_ENA_MEM | \
- AR_ENA_SCA | (ch ? AR_SEL_SCA_1:AR_SEL_SCA_0))
-#define ARC_SET_OFF(iobase) outb(iobase+AR_MSCA_EN, 0)
-
-struct ar_hardc {
- int cunit;
- struct ar_softc *sc;
- u_short iobase;
- int isa_irq;
- int numports;
- caddr_t mem_start;
- caddr_t mem_end;
- caddr_t plx_mem;
- u_char *orbase;
-
- u_int memsize; /* in bytes */
- u_int winsize; /* in bytes */
- u_int winmsk;
- u_char bustype; /* ISA, MCA, PCI.... */
- u_char interface[NPORT];/* X21, V.35, EIA-530.... */
- u_char revision;
- u_char handshake; /* handshake lines supported by card. */
-
- u_char txc_dtr[NPORT/NCHAN]; /* the register is write only */
- u_int txc_dtr_off[NPORT/NCHAN];
-
- sca_regs *sca[NPORT/NCHAN];
-
- bus_space_tag_t bt;
- bus_space_handle_t bh;
- int rid_ioport;
- int rid_memory;
- int rid_plx_memory;
- int rid_irq;
- int rid_drq;
- struct resource* res_ioport; /* resource for port range */
- struct resource* res_memory; /* resource for mem range */
- struct resource* res_plx_memory;
- struct resource* res_irq; /* resource for irq range */
- struct resource* res_drq; /* resource for dma channel */
- void *intr_cookie;
-};
-
-extern devclass_t ar_devclass;
-
-int ar_allocate_ioport(device_t device, int rid, u_long size);
-int ar_allocate_irq(device_t device, int rid, u_long size);
-int ar_allocate_memory(device_t device, int rid, u_long size);
-int ar_allocate_plx_memory(device_t device, int rid, u_long size);
-int ar_deallocate_resources(device_t device);
-int ar_attach(device_t device);
-int ar_detach (device_t);
-
-#endif /* _IF_ARREGS_H_ */
diff --git a/sys/i386/isa/if_sr.c b/sys/i386/isa/if_sr.c
deleted file mode 100644
index a52369b..0000000
--- a/sys/i386/isa/if_sr.c
+++ /dev/null
@@ -1,3365 +0,0 @@
-/*
- * Copyright (c) 1996 John Hay.
- * Copyright (c) 1996 SDL Communications, Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the author nor the names of any co-contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
- *
- * $FreeBSD$
- */
-
-/*
- * Programming assumptions and other issues.
- *
- * Only a 16K window will be used.
- *
- * The descriptors of a DMA channel will fit in a 16K memory window.
- *
- * The buffers of a transmit DMA channel will fit in a 16K memory window.
- *
- * When interface is going up, handshaking is set and it is only cleared
- * when the interface is down'ed.
- *
- * There should be a way to set/reset Raw HDLC/PPP, Loopback, DCE/DTE,
- * internal/external clock, etc.....
- *
- */
-
-#include "sr.h"
-#include "opt_netgraph.h"
-#ifdef NETGRAPH
-#include <i386/isa/if_sr.h>
-#endif /* NETGRAPH */
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/kernel.h>
-#include <sys/malloc.h>
-#include <sys/mbuf.h>
-#include <sys/sockio.h>
-#include <sys/socket.h>
-#include <sys/bus.h>
-
-#include <net/if.h>
-#ifdef NETGRAPH
-#include <sys/syslog.h>
-#else /* NETGRAPH */
-#include <net/if_sppp.h>
-
-#include <net/bpf.h>
-#endif /* NETGRAPH */
-
-#include <machine/md_var.h>
-
-#include <i386/isa/if_srregs.h>
-#include <i386/isa/ic/hd64570.h>
-#include <i386/isa/isa_device.h>
-
-#ifdef NETGRAPH
-#include <netgraph/ng_message.h>
-#include <netgraph/netgraph.h>
-#endif /* NETGRAPH */
-/* #define USE_MODEMCK */
-
-#ifndef COMPAT_OLDISA
-#error "The sr device requires the old isa compatibility shims"
-#endif
-
-#ifndef BUGGY
-#define BUGGY 0
-#endif
-
-#ifndef NETGRAPH
-#define PPP_HEADER_LEN 4
-#endif /* NETGRAPH */
-
-/*
- * These macros are used to hide the difference between the way the
- * ISA N2 cards and the PCI N2 cards access the Hitachi 64570 SCA.
- */
-#define SRC_GET8(base,off) (*hc->src_get8)(base,(u_int)&off)
-#define SRC_GET16(base,off) (*hc->src_get16)(base,(u_int)&off)
-#define SRC_PUT8(base,off,d) (*hc->src_put8)(base,(u_int)&off,d)
-#define SRC_PUT16(base,off,d) (*hc->src_put16)(base,(u_int)&off,d)
-
-/*
- * These macros enable/disable the DPRAM and select the correct
- * DPRAM page.
- */
-#define SRC_GET_WIN(addr) ((addr >> SRC_WIN_SHFT) & SR_PG_MSK)
-
-#define SRC_SET_ON(iobase) outb(iobase+SR_PCR, \
- SR_PCR_MEM_WIN | inb(iobase+SR_PCR))
-#define SRC_SET_MEM(iobase,win) outb(iobase+SR_PSR, SRC_GET_WIN(win) | \
- (inb(iobase+SR_PSR) & ~SR_PG_MSK))
-#define SRC_SET_OFF(iobase) outb(iobase+SR_PCR, \
- ~SR_PCR_MEM_WIN & inb(iobase+SR_PCR))
-
-/*
- * Define the hardware (card information) structure needed to keep
- * track of the device itself... There is only one per card.
- */
-struct sr_hardc {
- struct sr_hardc *next; /* PCI card linkage */
- struct sr_softc *sc; /* software channels */
- int cunit; /* card w/in system */
-
- u_short iobase; /* I/O Base Address */
- int cardtype;
- int numports; /* # of ports on cd */
- int mempages;
- u_int memsize; /* DPRAM size: bytes */
- u_int winmsk;
- vm_offset_t sca_base;
- vm_offset_t mem_pstart; /* start of buffer */
- caddr_t mem_start; /* start of DP RAM */
- caddr_t mem_end; /* end of DP RAM */
- caddr_t plx_base;
-
- sca_regs *sca; /* register array */
-
- /*
- * We vectorize the following functions to allow re-use between the
- * ISA card's needs and those of the PCI card.
- */
- void (*src_put8)(u_int base, u_int off, u_int val);
- void (*src_put16)(u_int base, u_int off, u_int val);
- u_int (*src_get8)(u_int base, u_int off);
- u_int (*src_get16)(u_int base, u_int off);
-};
-
-static int next_sc_unit = 0;
-#ifndef NETGRAPH
-static int sr_watcher = 0;
-#endif /* NETGRAPH */
-static struct sr_hardc sr_hardc[NSR];
-static struct sr_hardc *sr_hardc_pci;
-
-/*
- * Define the software interface for the card... There is one for
- * every channel (port).
- */
-struct sr_softc {
-#ifndef NETGRAPH
- struct sppp ifsppp; /* PPP service w/in system */
-#endif /* NETGRAPH */
- struct sr_hardc *hc; /* card-level information */
-
- int unit; /* With regard to all sr devices */
- int subunit; /* With regard to this card */
-
- struct buf_block {
- u_int txdesc; /* DPRAM offset */
- u_int txstart;/* DPRAM offset */
- u_int txend; /* DPRAM offset */
- u_int txtail; /* # of 1st free gran */
- u_int txmax; /* # of free grans */
- u_int txeda; /* err descr addr */
- } block[SR_TX_BLOCKS];
-
- char xmit_busy; /* Transmitter is busy */
- char txb_inuse; /* # of tx grans in use */
- u_int txb_new; /* ndx to new buffer */
- u_int txb_next_tx; /* ndx to next gran rdy tx */
-
- u_int rxdesc; /* DPRAM offset */
- u_int rxstart; /* DPRAM offset */
- u_int rxend; /* DPRAM offset */
- u_int rxhind; /* ndx to the hd of rx bufrs */
- u_int rxmax; /* # of avail grans */
-
- u_int clk_cfg; /* Clock configuration */
-
- int scachan; /* channel # on card */
-#ifdef NETGRAPH
- int running; /* something is attached so we are running */
- int dcd; /* do we have dcd? */
- /* ---netgraph bits --- */
- char nodename[NG_NODELEN + 1]; /* store our node name */
- int datahooks; /* number of data hooks attached */
- node_p node; /* netgraph node */
- hook_p hook; /* data hook */
- hook_p debug_hook;
- struct ifqueue xmitq_hipri; /* hi-priority transmit queue */
- struct ifqueue xmitq; /* transmit queue */
- int flags; /* state */
-#define SCF_RUNNING 0x01 /* board is active */
-#define SCF_OACTIVE 0x02 /* output is active */
- int out_dog; /* watchdog cycles output count-down */
-#if ( __FreeBSD__ >= 3 )
- struct callout_handle handle; /* timeout(9) handle */
-#endif
- u_long inbytes, outbytes; /* stats */
- u_long lastinbytes, lastoutbytes; /* a second ago */
- u_long inrate, outrate; /* highest rate seen */
- u_long inlast; /* last input N secs ago */
- u_long out_deficit; /* output since last input */
- u_long oerrors, ierrors[6];
- u_long opackets, ipackets;
-#endif /* NETGRAPH */
-};
-
-#ifdef NETGRAPH
-#define DOG_HOLDOFF 6 /* dog holds off for 6 secs */
-#define QUITE_A_WHILE 300 /* 5 MINUTES */
-#define LOTS_OF_PACKETS 100
-#endif /* NETGRAPH */
-
-/*
- * List of valid interrupt numbers for the N2 ISA card.
- */
-static int sr_irqtable[16] = {
- 0, /* 0 */
- 0, /* 1 */
- 0, /* 2 */
- 1, /* 3 */
- 1, /* 4 */
- 1, /* 5 */
- 0, /* 6 */
- 1, /* 7 */
- 0, /* 8 */
- 0, /* 9 */
- 1, /* 10 */
- 1, /* 11 */
- 1, /* 12 */
- 0, /* 13 */
- 0, /* 14 */
- 1 /* 15 */
-};
-
-static int srprobe(struct isa_device *id);
-static int srattach_isa(struct isa_device *id);
-
-struct isa_driver srdriver = {
- INTR_TYPE_NET,
- srprobe,
- srattach_isa,
- "sr"
-};
-COMPAT_ISA_DRIVER(sr, srdriver);
-
-/*
- * Baud Rate table for Sync Mode.
- * Each entry consists of 3 elements:
- * Baud Rate (x100) , TMC, BR
- *
- * Baud Rate = FCLK / TMC / 2^BR
- * Baud table for Crystal freq. of 9.8304 Mhz
- */
-#ifdef N2_TEST_SPEED
-struct rate_line {
- int target; /* target rate/100 */
- int tmc_reg; /* TMC register value */
- int br_reg; /* BR (BaudRateClk) selector */
-} n2_rates[] = {
- /* Baudx100 TMC BR */
- { 3, 128, 8 },
- { 6, 128, 7 },
- { 12, 128, 6 },
- { 24, 128, 5 },
- { 48, 128, 4 },
- { 96, 128, 3 },
- { 192, 128, 2 },
- { 384, 128, 1 },
- { 560, 88, 1 },
- { 640, 77, 1 },
- { 1280, 38, 1 },
- { 2560, 19, 1 },
- { 5120, 10, 1 },
- { 10000, 5, 1 },
- { 15000, 3, 1 },
- { 25000, 2, 1 },
- { 50000, 1, 1 },
- { 0, 0, 0 }
-};
-
-int sr_test_speed[] = {
- N2_TEST_SPEED,
- N2_TEST_SPEED
-};
-
-int etc0vals[] = {
- SR_MCR_ETC0, /* ISA channel 0 */
- SR_MCR_ETC1, /* ISA channel 1 */
- SR_FECR_ETC0, /* PCI channel 0 */
- SR_FECR_ETC1 /* PCI channel 1 */
-};
-#endif
-
-struct sr_hardc *srattach_pci(int unit, vm_offset_t plx_vaddr,
- vm_offset_t sca_vaddr);
-void srintr_hc(struct sr_hardc *hc);
-
-static ointhand2_t srintr;
-
-static int srattach(struct sr_hardc *hc);
-static void sr_xmit(struct sr_softc *sc);
-#ifndef NETGRAPH
-static void srstart(struct ifnet *ifp);
-static int srioctl(struct ifnet *ifp, u_long cmd, caddr_t data);
-static void srwatchdog(struct ifnet *ifp);
-#else
-static void srstart(struct sr_softc *sc);
-static void srwatchdog(struct sr_softc *sc);
-#endif /* NETGRAPH */
-static int sr_packet_avail(struct sr_softc *sc, int *len, u_char *rxstat);
-static void sr_copy_rxbuf(struct mbuf *m, struct sr_softc *sc, int len);
-static void sr_eat_packet(struct sr_softc *sc, int single);
-static void sr_get_packets(struct sr_softc *sc);
-
-static void sr_up(struct sr_softc *sc);
-static void sr_down(struct sr_softc *sc);
-static void src_init(struct sr_hardc *hc);
-static void sr_init_sca(struct sr_hardc *hc);
-static void sr_init_msci(struct sr_softc *sc);
-static void sr_init_rx_dmac(struct sr_softc *sc);
-static void sr_init_tx_dmac(struct sr_softc *sc);
-static void sr_dmac_intr(struct sr_hardc *hc, u_char isr);
-static void sr_msci_intr(struct sr_hardc *hc, u_char isr);
-static void sr_timer_intr(struct sr_hardc *hc, u_char isr);
-#ifndef NETGRAPH
-static void sr_modemck(void *x);
-#else
-static void sr_modemck(struct sr_softc *x);
-#endif /* NETGRAPH */
-
-static u_int src_get8_io(u_int base, u_int off);
-static u_int src_get16_io(u_int base, u_int off);
-static void src_put8_io(u_int base, u_int off, u_int val);
-static void src_put16_io(u_int base, u_int off, u_int val);
-static u_int src_get8_mem(u_int base, u_int off);
-static u_int src_get16_mem(u_int base, u_int off);
-static void src_put8_mem(u_int base, u_int off, u_int val);
-static void src_put16_mem(u_int base, u_int off, u_int val);
-
-#ifdef NETGRAPH
-static void ngsr_watchdog_frame(void * arg);
-static void ngsr_init(void* ignored);
-
-static ng_constructor_t ngsr_constructor;
-static ng_rcvmsg_t ngsr_rcvmsg;
-static ng_shutdown_t ngsr_shutdown;
-static ng_newhook_t ngsr_newhook;
-/*static ng_findhook_t ngsr_findhook; */
-static ng_connect_t ngsr_connect;
-static ng_rcvdata_t ngsr_rcvdata;
-static ng_disconnect_t ngsr_disconnect;
-
-static struct ng_type typestruct = {
- NG_ABI_VERSION,
- NG_SR_NODE_TYPE,
- NULL,
- ngsr_constructor,
- ngsr_rcvmsg,
- ngsr_shutdown,
- ngsr_newhook,
- NULL,
- ngsr_connect,
- ngsr_rcvdata,
- ngsr_disconnect,
- NULL
-};
-
-static int ngsr_done_init = 0;
-#endif /* NETGRAPH */
-
-/*
- * I/O for ISA N2 card(s)
- */
-#define SRC_REG(iobase,y) ((((y) & 0xf) + (((y) & 0xf0) << 6) + \
- (iobase)) | 0x8000)
-
-static u_int
-src_get8_io(u_int base, u_int off)
-{
- return inb(SRC_REG(base, off));
-}
-
-static u_int
-src_get16_io(u_int base, u_int off)
-{
- return inw(SRC_REG(base, off));
-}
-
-static void
-src_put8_io(u_int base, u_int off, u_int val)
-{
- outb(SRC_REG(base, off), val);
-}
-
-static void
-src_put16_io(u_int base, u_int off, u_int val)
-{
- outw(SRC_REG(base, off), val);
-}
-
-/*
- * I/O for PCI N2 card(s)
- */
-#define SRC_PCI_SCA_REG(y) ((y & 2) ? ((y & 0xfd) + 0x100) : y)
-
-static u_int
-src_get8_mem(u_int base, u_int off)
-{
- return *((u_char *)(base + SRC_PCI_SCA_REG(off)));
-}
-
-static u_int
-src_get16_mem(u_int base, u_int off)
-{
- return *((u_short *)(base + SRC_PCI_SCA_REG(off)));
-}
-
-static void
-src_put8_mem(u_int base, u_int off, u_int val)
-{
- *((u_char *)(base + SRC_PCI_SCA_REG(off))) = (u_char)val;
-}
-
-static void
-src_put16_mem(u_int base, u_int off, u_int val)
-{
- *((u_short *)(base + SRC_PCI_SCA_REG(off))) = (u_short)val;
-}
-
-/*
- * Probe for an ISA card. If it is there, size its memory. Then get the
- * rest of its information and fill it in.
- */
-static int
-srprobe(struct isa_device *id)
-{
- struct sr_hardc *hc = &sr_hardc[id->id_unit];
- u_int pgs, i, tmp;
- u_short port;
- u_short *smem;
- u_char mar;
- sca_regs *sca = 0;
-
- /*
- * Now see if the card is realy there.
- */
- hc->cardtype = SR_CRD_N2;
-
- /*
- * We have to fill these in early because the SRC_PUT* and SRC_GET*
- * macros use them.
- */
- hc->src_get8 = src_get8_io;
- hc->src_get16 = src_get16_io;
- hc->src_put8 = src_put8_io;
- hc->src_put16 = src_put16_io;
-
- hc->sca = 0;
- port = id->id_iobase;
- hc->numports = NCHAN; /* assumed # of channels on the card */
-
- if (id->id_flags & SR_FLAGS_NCHAN_MSK)
- hc->numports = id->id_flags & SR_FLAGS_NCHAN_MSK;
-
- outb(port + SR_PCR, 0); /* turn off the card */
-
- /*
- * Next, we'll test the Base Address Register to retension of
- * data... ... seeing if we're *really* talking to an N2.
- */
- for (i = 0; i < 0x100; i++) {
- outb(port + SR_BAR, i);
- inb(port + SR_PCR);
- tmp = inb(port + SR_BAR);
- if (tmp != i) {
- printf("sr%d: probe failed BAR %x, %x.\n",
- id->id_unit, i, tmp);
- return 0;
- }
- }
-
- /*
- * Now see if we can see the SCA.
- */
- outb(port + SR_PCR, SR_PCR_SCARUN | inb(port + SR_PCR));
- SRC_PUT8(port, sca->wcrl, 0);
- SRC_PUT8(port, sca->wcrm, 0);
- SRC_PUT8(port, sca->wcrh, 0);
- SRC_PUT8(port, sca->pcr, 0);
- SRC_PUT8(port, sca->msci[0].tmc, 0);
- inb(port);
-
- tmp = SRC_GET8(port, sca->msci[0].tmc);
- if (tmp != 0) {
- printf("sr%d: Error reading SCA 0, %x\n", id->id_unit, tmp);
- return 0;
- }
- SRC_PUT8(port, sca->msci[0].tmc, 0x5A);
- inb(port);
-
- tmp = SRC_GET8(port, sca->msci[0].tmc);
- if (tmp != 0x5A) {
- printf("sr%d: Error reading SCA 0x5A, %x\n", id->id_unit, tmp);
- return 0;
- }
- SRC_PUT16(port, sca->dmac[0].cda, 0);
- inb(port);
-
- tmp = SRC_GET16(port, sca->dmac[0].cda);
- if (tmp != 0) {
- printf("sr%d: Error reading SCA 0, %x\n", id->id_unit, tmp);
- return 0;
- }
- SRC_PUT16(port, sca->dmac[0].cda, 0x55AA);
- inb(port);
-
- tmp = SRC_GET16(port, sca->dmac[0].cda);
- if (tmp != 0x55AA) {
- printf("sr%d: Error reading SCA 0x55AA, %x\n",
- id->id_unit, tmp);
- return 0;
- }
- /*
- * OK, the board's interface registers seem to work. Now we'll see
- * if the Dual-Ported RAM is fully accessible...
- */
- outb(port + SR_PCR, SR_PCR_EN_VPM | SR_PCR_ISA16);
- outb(port + SR_PSR, SR_PSR_WIN_16K);
-
- /*
- * Take the kernel "virtual" address supplied to us and convert
- * it to a "real" address. Then program the card to use that.
- */
- mar = (kvtop(id->id_maddr) >> 16) & SR_PCR_16M_SEL;
- outb(port + SR_PCR, mar | inb(port + SR_PCR));
- mar = kvtop(id->id_maddr) >> 12;
- outb(port + SR_BAR, mar);
- outb(port + SR_PCR, inb(port + SR_PCR) | SR_PCR_MEM_WIN);
- smem = (u_short *)id->id_maddr; /* DP RAM Address */
-
- /*
- * Here we will perform the memory scan to size the device.
- *
- * This is done by marking each potential page with a magic number.
- * We then loop through the pages looking for that magic number. As
- * soon as we no longer see that magic number, we'll quit the scan,
- * knowing that no more memory is present. This provides the number
- * of pages present on the card.
- *
- * Note: We're sizing 16K memory granules.
- */
- for (i = 0; i <= SR_PSR_PG_SEL; i++) {
- outb(port + SR_PSR,
- (inb(port + SR_PSR) & ~SR_PSR_PG_SEL) | i);
-
- *smem = 0xAA55;
- }
-
- for (i = 0; i <= SR_PSR_PG_SEL; i++) {
- outb(port + SR_PSR,
- (inb(port + SR_PSR) & ~SR_PSR_PG_SEL) | i);
-
- if (*smem != 0xAA55) {
- /*
- * If we have less than 64k of memory, give up. That
- * is 4 x 16k pages.
- */
- if (i < 4) {
- printf("sr%d: Bad mem page %d, mem %x, %x.\n",
- id->id_unit, i, 0xAA55, *smem);
- return 0;
- }
- break;
- }
- *smem = i;
- }
-
- hc->mempages = i;
- hc->memsize = i * SRC_WIN_SIZ;
- hc->winmsk = SRC_WIN_MSK;
- pgs = i; /* final count of 16K pages */
-
- /*
- * This next loop erases the contents of that page in DPRAM
- */
- for (i = 0; i <= pgs; i++) {
- outb(port + SR_PSR,
- (inb(port + SR_PSR) & ~SR_PSR_PG_SEL) | i);
- bzero(smem, SRC_WIN_SIZ);
- }
-
- SRC_SET_OFF(port);
-
- /*
- * We have a card here, fill in what we can.
- */
- id->id_msize = SRC_WIN_SIZ;
- hc->iobase = id->id_iobase;
- hc->sca_base = id->id_iobase;
- hc->mem_start = id->id_maddr;
- hc->mem_end = (id->id_maddr + id->id_msize) - 1;
- hc->mem_pstart = 0;
- hc->cunit = id->id_unit;
-
- /*
- * Do a little sanity check.
- */
- if (sr_irqtable[ffs(id->id_irq) - 1] == 0)
- printf("sr%d: Warning: illegal interrupt %d chosen.\n",
- id->id_unit, ffs(id->id_irq) - 1);
-
- /*
- * Bogus card configuration
- */
- if ((hc->numports > NCHAN) /* only 2 ports/card */
- ||(hc->memsize > (512 * 1024))) /* no more than 256K */
- return 0;
-
- return SRC_IO_SIZ; /* return the amount of IO addresses used. */
-}
-
-/*
- * srattach_isa and srattach_pci allocate memory for hardc, softc and
- * data buffers. It also does any initialization that is bus specific.
- * At the end they call the common srattach() function.
- */
-static int
-srattach_isa(struct isa_device *id)
-{
- u_char mar;
- struct sr_hardc *hc = &sr_hardc[id->id_unit];
-
- /*
- * Allocate the software interface table(s)
- */
- MALLOC(hc->sc, struct sr_softc *,
- hc->numports * sizeof(struct sr_softc),
- M_DEVBUF, M_WAITOK | M_ZERO);
- if (hc->sc == NULL)
- return(0);
-
- id->id_ointr = srintr;
-
- outb(hc->iobase + SR_PCR, inb(hc->iobase + SR_PCR) | SR_PCR_SCARUN);
- outb(hc->iobase + SR_PSR, inb(hc->iobase + SR_PSR) | SR_PSR_EN_SCA_DMA);
- outb(hc->iobase + SR_MCR,
- SR_MCR_DTR0 | SR_MCR_DTR1 | SR_MCR_TE0 | SR_MCR_TE1);
-
- SRC_SET_ON(hc->iobase);
-
- /*
- * Configure the card. Mem address, irq,
- */
- mar = (kvtop(id->id_maddr) >> 16) & SR_PCR_16M_SEL;
- outb(hc->iobase + SR_PCR,
- mar | (inb(hc->iobase + SR_PCR) & ~SR_PCR_16M_SEL));
- mar = kvtop(id->id_maddr) >> 12;
- outb(hc->iobase + SR_BAR, mar);
-
- /*
- * Get the TX clock direction and configuration. The default is a
- * single external clock which is used by RX and TX.
- */
-#ifdef N2_TEST_SPEED
- if (sr_test_speed[0] > 0)
- hc->sc[0].clk_cfg = SR_FLAGS_INT_CLK;
- else if (id->id_flags & SR_FLAGS_0_CLK_MSK)
- hc->sc[0].clk_cfg =
- (id->id_flags & SR_FLAGS_0_CLK_MSK)
- >> SR_FLAGS_CLK_SHFT;
-#else
- if (id->id_flags & SR_FLAGS_0_CLK_MSK)
- hc->sc[0].clk_cfg =
- (id->id_flags & SR_FLAGS_0_CLK_MSK)
- >> SR_FLAGS_CLK_SHFT;
-#endif
-
- if (hc->numports == 2)
-#ifdef N2_TEST_SPEED
- if (sr_test_speed[1] > 0)
- hc->sc[0].clk_cfg = SR_FLAGS_INT_CLK;
- else
-#endif
- if (id->id_flags & SR_FLAGS_1_CLK_MSK)
- hc->sc[1].clk_cfg = (id->id_flags & SR_FLAGS_1_CLK_MSK)
- >> (SR_FLAGS_CLK_SHFT + SR_FLAGS_CLK_CHAN_SHFT);
-
- return srattach(hc);
-}
-
-struct sr_hardc *
-srattach_pci(int unit, vm_offset_t plx_vaddr, vm_offset_t sca_vaddr)
-{
- int numports, pndx;
- u_int fecr, *fecrp = (u_int *)(sca_vaddr + SR_FECR);
- struct sr_hardc *hc, **hcp;
-
- /*
- * Configure the PLX. This is magic. I'm doing it just like I'm told
- * to. :-)
- *
- * offset
- * 0x00 - Map Range - Mem-mapped to locate anywhere
- * 0x04 - Re-Map - PCI address decode enable
- * 0x18 - Bus Region - 32-bit bus, ready enable
- * 0x1c - Master Range - include all 16 MB
- * 0x20 - Master RAM - Map SCA Base at 0
- * 0x28 - Master Remap - direct master memory enable
- * 0x68 - Interrupt - Enable interrupt (0 to disable)
- *
- * Note: This is "cargo cult" stuff. - jrc
- */
- *((u_int *)(plx_vaddr + 0x00)) = 0xfffff000;
- *((u_int *)(plx_vaddr + 0x04)) = 1;
- *((u_int *)(plx_vaddr + 0x18)) = 0x40030043;
- *((u_int *)(plx_vaddr + 0x1c)) = 0xff000000;
- *((u_int *)(plx_vaddr + 0x20)) = 0;
- *((u_int *)(plx_vaddr + 0x28)) = 0xe9;
- *((u_int *)(plx_vaddr + 0x68)) = 0x10900;
-
- /*
- * Get info from card.
- *
- * Only look for the second port if the first exists. Too many things
- * will break if we have only a second port.
- */
- fecr = *fecrp;
- numports = 0;
-
- if (((fecr & SR_FECR_ID0) >> SR_FE_ID0_SHFT) != SR_FE_ID_NONE) {
- numports++;
- if (((fecr & SR_FECR_ID1) >> SR_FE_ID1_SHFT) != SR_FE_ID_NONE)
- numports++;
- }
- if (numports == 0)
- return NULL;
-
- hc = sr_hardc_pci;
- hcp = &sr_hardc_pci;
-
- while (hc) {
- hcp = &hc->next;
- hc = hc->next;
- }
-
- MALLOC(hc, struct sr_hardc *, sizeof(*hc), M_DEVBUF, M_WAITOK | M_ZERO);
- if (hc == NULL)
- return NULL;
-
- MALLOC(hc->sc, struct sr_softc *, numports * sizeof(struct sr_softc),
- M_DEVBUF, M_WAITOK | M_ZERO);
- if (hc->sc == NULL) {
- FREE(hc, M_DEVBUF);
- return NULL;
- }
- *hcp = hc;
-
- hc->numports = numports;
- hc->cunit = unit;
- hc->cardtype = SR_CRD_N2PCI;
- hc->plx_base = (caddr_t)plx_vaddr;
- hc->sca_base = sca_vaddr;
-
- hc->src_put8 = src_put8_mem;
- hc->src_put16 = src_put16_mem;
- hc->src_get8 = src_get8_mem;
- hc->src_get16 = src_get16_mem;
-
- /*
- * Malloc area for tx and rx buffers. For now allocate SRC_WIN_SIZ
- * (16k) for each buffer.
- *
- * Allocate the block below 16M because the N2pci card can only access
- * 16M memory at a time.
- *
- * (We could actually allocate a contiguous block above the 16MB limit,
- * but this would complicate card programming more than we want to
- * right now -jrc)
- */
- hc->memsize = 2 * hc->numports * SRC_WIN_SIZ;
- hc->mem_start = contigmalloc(hc->memsize,
- M_DEVBUF,
- M_NOWAIT,
- 0ul,
- 0xfffffful,
- 0x10000,
- 0x1000000);
-
- if (hc->mem_start == NULL) {
- printf("src%d: pci: failed to allocate buffer space.\n", unit);
- return NULL;
- }
- hc->winmsk = 0xffffffff;
- hc->mem_end = (caddr_t)((u_int)hc->mem_start + hc->memsize);
- hc->mem_pstart = kvtop(hc->mem_start);
- bzero(hc->mem_start, hc->memsize);
-
- for (pndx = 0; pndx < numports; pndx++) {
- int intf_sw;
- struct sr_softc *sc;
-
- sc = &hc->sc[pndx];
-
- switch (pndx) {
- case 1:
- intf_sw = fecr & SR_FECR_ID1 >> SR_FE_ID1_SHFT;
- break;
- case 0:
- default:
- intf_sw = fecr & SR_FECR_ID0 >> SR_FE_ID0_SHFT;
- }
-
-#ifdef N2_TEST_SPEED
- if (sr_test_speed[pndx] > 0)
- sc->clk_cfg = SR_FLAGS_INT_CLK;
- else
-#endif
- switch (intf_sw) {
- default:
- case SR_FE_ID_RS232:
- case SR_FE_ID_HSSI:
- case SR_FE_ID_RS422:
- case SR_FE_ID_TEST:
- break;
-
- case SR_FE_ID_V35:
- sc->clk_cfg = SR_FLAGS_EXT_SEP_CLK;
- break;
-
- case SR_FE_ID_X21:
- sc->clk_cfg = SR_FLAGS_EXT_CLK;
- break;
- }
- }
-
- *fecrp = SR_FECR_DTR0
- | SR_FECR_DTR1
- | SR_FECR_TE0
- | SR_FECR_TE1;
-
- srattach(hc);
-
- return hc;
-}
-
-/*
- * Register the ports on the adapter.
- * Fill in the info for each port.
-#ifndef NETGRAPH
- * Attach each port to sppp and bpf.
-#endif
- */
-static int
-srattach(struct sr_hardc *hc)
-{
- struct sr_softc *sc = hc->sc;
-#ifndef NETGRAPH
- struct ifnet *ifp;
-#endif /* NETGRAPH */
- int unit; /* index: channel w/in card */
-
- /*
- * Report Card configuration information before we start configuring
- * each channel on the card...
- */
- printf("src%d: %uK RAM (%d mempages) @ %08x-%08x, %u ports.\n",
- hc->cunit, hc->memsize / 1024, hc->mempages,
- (u_int)hc->mem_start, (u_int)hc->mem_end, hc->numports);
-
- src_init(hc);
- sr_init_sca(hc);
-
- /*
- * Now configure each port on the card.
- */
- for (unit = 0; unit < hc->numports; sc++, unit++) {
- sc->hc = hc;
- sc->subunit = unit;
- sc->unit = next_sc_unit;
- next_sc_unit++;
- sc->scachan = unit % NCHAN;
-
- sr_init_rx_dmac(sc);
- sr_init_tx_dmac(sc);
- sr_init_msci(sc);
-
- printf("sr%d: Adapter %d, port %d.\n",
- sc->unit, hc->cunit, sc->subunit);
-
-#ifndef NETGRAPH
- ifp = &sc->ifsppp.pp_if;
- ifp->if_softc = sc;
- ifp->if_unit = sc->unit;
- ifp->if_name = "sr";
- ifp->if_mtu = PP_MTU;
- ifp->if_flags = IFF_POINTOPOINT | IFF_MULTICAST;
- ifp->if_ioctl = srioctl;
- ifp->if_start = srstart;
- ifp->if_watchdog = srwatchdog;
-
- sc->ifsppp.pp_flags = PP_KEEPALIVE;
- sppp_attach((struct ifnet *)&sc->ifsppp);
- if_attach(ifp);
-
- bpfattach(ifp, DLT_PPP, PPP_HEADER_LEN);
-#else /* NETGRAPH */
- /*
- * we have found a node, make sure our 'type' is availabe.
- */
- if (ngsr_done_init == 0) ngsr_init(NULL);
- if (ng_make_node_common(&typestruct, &sc->node) != 0)
- return (0);
- sprintf(sc->nodename, "%s%d", NG_SR_NODE_TYPE, sc->unit);
- if (ng_name_node(sc->node, sc->nodename)) {
- NG_NODE_UNREF(sc->node); /* make it go away again */
- return (0);
- }
- NG_NODE_SET_PRIVATE(sc->node, sc);
- callout_handle_init(&sc->handle);
- sc->xmitq.ifq_maxlen = IFQ_MAXLEN;
- sc->xmitq_hipri.ifq_maxlen = IFQ_MAXLEN;
- mtx_init(&sc->xmitq.ifq_mtx, "sr_xmitq", MTX_DEF);
- mtx_init(&sc->xmitq_hipri.ifq_mtx, "sr_xmitq_hipri", MTX_DEF);
- sc->running = 0;
-#endif /* NETGRAPH */
- }
-
- if (hc->mempages)
- SRC_SET_OFF(hc->iobase);
-
- return 1;
-}
-
-/*
- * N2 Interrupt Service Routine
- *
- * First figure out which SCA gave the interrupt.
- * Process it.
- * See if there is other interrupts pending.
- * Repeat until there no interrupts remain.
- */
-static void
-srintr(int unit)
-{
- struct sr_hardc *hc;
-
- hc = &sr_hardc[unit];
- srintr_hc(hc);
-
- return;
-}
-
-void
-srintr_hc(struct sr_hardc *hc)
-{
- sca_regs *sca = hc->sca; /* MSCI register tree */
- u_char isr0, isr1, isr2; /* interrupt statii captured */
-
-#if BUGGY > 1
- printf("sr: srintr_hc(hc=%08x)\n", hc);
-#endif
-
- /*
- * Since multiple interfaces may share this interrupt, we must loop
- * until no interrupts are still pending service.
- */
- while (1) {
- /*
- * Read all three interrupt status registers from the N2
- * card...
- */
- isr0 = SRC_GET8(hc->sca_base, sca->isr0);
- isr1 = SRC_GET8(hc->sca_base, sca->isr1);
- isr2 = SRC_GET8(hc->sca_base, sca->isr2);
-
- /*
- * If all three registers returned 0, we've finished
- * processing interrupts from this device, so we can quit
- * this loop...
- */
- if ((isr0 | isr1 | isr2) == 0)
- break;
-
-#if BUGGY > 2
- printf("src%d: srintr_hc isr0 %x, isr1 %x, isr2 %x\n",
-#ifndef NETGRAPH
- unit, isr0, isr1, isr2);
-#else
- hc->cunit, isr0, isr1, isr2);
-#endif /* NETGRAPH */
-#endif
-
- /*
- * Now we can dispatch the interrupts. Since we don't expect
- * either MSCI or timer interrupts, we'll test for DMA
- * interrupts first...
- */
- if (isr1) /* DMA-initiated interrupt */
- sr_dmac_intr(hc, isr1);
-
- if (isr0) /* serial part IRQ? */
- sr_msci_intr(hc, isr0);
-
- if (isr2) /* timer-initiated interrupt */
- sr_timer_intr(hc, isr2);
- }
-}
-
-/*
- * This will only start the transmitter. It is assumed that the data
- * is already there.
- * It is normally called from srstart() or sr_dmac_intr().
- */
-static void
-sr_xmit(struct sr_softc *sc)
-{
- u_short cda_value; /* starting descriptor */
- u_short eda_value; /* ending descriptor */
- struct sr_hardc *hc;
-#ifndef NETGRAPH
- struct ifnet *ifp; /* O/S Network Services */
-#endif /* NETGRAPH */
- dmac_channel *dmac; /* DMA channel registers */
-
-#if BUGGY > 0
- printf("sr: sr_xmit( sc=%08x)\n", sc);
-#endif
-
- hc = sc->hc;
-#ifndef NETGRAPH
- ifp = &sc->ifsppp.pp_if;
-#endif /* NETGRAPH */
- dmac = &hc->sca->dmac[DMAC_TXCH(sc->scachan)];
-
- /*
- * Get the starting and ending addresses of the chain to be
- * transmitted and pass these on to the DMA engine on-chip.
- */
- cda_value = sc->block[sc->txb_next_tx].txdesc + hc->mem_pstart;
- cda_value &= 0x00ffff;
- eda_value = sc->block[sc->txb_next_tx].txeda + hc->mem_pstart;
- eda_value &= 0x00ffff;
-
- SRC_PUT16(hc->sca_base, dmac->cda, cda_value);
- SRC_PUT16(hc->sca_base, dmac->eda, eda_value);
-
- /*
- * Now we'll let the DMA status register know about this change
- */
- SRC_PUT8(hc->sca_base, dmac->dsr, SCA_DSR_DE);
-
- sc->xmit_busy = 1; /* mark transmitter busy */
-
-#if BUGGY > 2
- printf("sr%d: XMIT cda=%04x, eda=%4x, rcda=%08lx\n",
- sc->unit, cda_value, eda_value,
- sc->block[sc->txb_next_tx].txdesc + hc->mem_pstart);
-#endif
-
- sc->txb_next_tx++; /* update next transmit seq# */
-
- if (sc->txb_next_tx == SR_TX_BLOCKS) /* handle wrap... */
- sc->txb_next_tx = 0;
-
-#ifndef NETGRAPH
- /*
- * Finally, we'll set a timout (which will start srwatchdog())
- * within the O/S network services layer...
- */
- ifp->if_timer = 2; /* Value in seconds. */
-#else
- /*
- * Don't time out for a while.
- */
- sc->out_dog = DOG_HOLDOFF; /* give ourself some breathing space*/
-#endif /* NETGRAPH */
-}
-
-/*
- * This function will be called from the upper level when a user add a
- * packet to be send, and from the interrupt handler after a finished
- * transmit.
- *
- * NOTE: it should run at spl_imp().
- *
- * This function only place the data in the oncard buffers. It does not
- * start the transmition. sr_xmit() does that.
- *
- * Transmitter idle state is indicated by the IFF_OACTIVE flag.
- * The function that clears that should ensure that the transmitter
- * and its DMA is in a "good" idle state.
- */
-#ifndef NETGRAPH
-static void
-srstart(struct ifnet *ifp)
-{
- struct sr_softc *sc; /* channel control structure */
-#else
-static void
-srstart(struct sr_softc *sc)
-{
-#endif /* NETGRAPH */
- struct sr_hardc *hc; /* card control/config block */
- int len; /* total length of a packet */
- int pkts; /* packets placed in DPRAM */
- int tlen; /* working length of pkt */
- u_int i;
- struct mbuf *mtx; /* message buffer from O/S */
- u_char *txdata; /* buffer address in DPRAM */
- sca_descriptor *txdesc; /* working descriptor pointr */
- struct buf_block *blkp;
-
-#ifndef NETGRAPH
-#if BUGGY > 0
- printf("sr: srstart( ifp=%08x)\n", ifp);
-#endif
- sc = ifp->if_softc;
- if ((ifp->if_flags & IFF_RUNNING) == 0)
- return;
-#endif /* NETGRAPH */
- hc = sc->hc;
- /*
- * It is OK to set the memory window outside the loop because all tx
- * buffers and descriptors are assumed to be in the same 16K window.
- */
- if (hc->mempages) {
- SRC_SET_ON(hc->iobase);
- SRC_SET_MEM(hc->iobase, sc->block[0].txdesc);
- }
-
- /*
- * Loop to place packets into DPRAM.
- *
- * We stay in this loop until there is nothing in
- * the TX queue left or the tx buffers are full.
- */
-top_srstart:
-
- /*
- * See if we have space for more packets.
- */
- if (sc->txb_inuse == SR_TX_BLOCKS) { /* out of space? */
-#ifndef NETGRAPH
- ifp->if_flags |= IFF_OACTIVE; /* yes, mark active */
-#else
- /*ifp->if_flags |= IFF_OACTIVE;*/ /* yes, mark active */
-#endif /* NETGRAPH */
-
- if (hc->mempages)
- SRC_SET_OFF(hc->iobase);
-
-#if BUGGY > 9
- printf("sr%d.srstart: sc->txb_inuse=%d; DPRAM full...\n",
- sc->unit, sc->txb_inuse);
-#endif
- return;
- }
- /*
- * OK, the card can take more traffic. Let's see if there's any
- * pending from the system...
- *
- * NOTE:
- * The architecture of the networking interface doesn't
- * actually call us like 'write()', providing an address. We get
- * started, a lot like a disk strategy routine, and we actually call
- * back out to the system to get traffic to send...
- *
- * NOTE:
- * If we were gonna run through another layer, we would use a
- * dispatch table to select the service we're getting a packet
- * from...
- */
-#ifndef NETGRAPH
- mtx = sppp_dequeue(ifp);
-#else /* NETGRAPH */
- IF_DEQUEUE(&sc->xmitq_hipri, mtx);
- if (mtx == NULL) {
- IF_DEQUEUE(&sc->xmitq, mtx);
- }
-#endif /* NETGRAPH */
- if (!mtx) {
- if (hc->mempages)
- SRC_SET_OFF(hc->iobase);
- return;
- }
- /*
- * OK, we got a packet from the network services of the O/S. Now we
- * can move it into the DPRAM (under control of the descriptors) and
- * fire it off...
- */
- pkts = 0;
- i = 0; /* counts # of granules used */
-
- blkp = &sc->block[sc->txb_new]; /* address of free granule */
- txdesc = (sca_descriptor *)
- (hc->mem_start + (blkp->txdesc & hc->winmsk));
-
- txdata = (u_char *)(hc->mem_start
- + (blkp->txstart & hc->winmsk));
-
- /*
- * Now we'll try to install as many packets as possible into the
- * card's DP RAM buffers.
- */
- for (;;) { /* perform actual copy of packet */
- len = mtx->m_pkthdr.len; /* length of message */
-
-#if BUGGY > 1
- printf("sr%d.srstart: mbuf @ %08lx, %d bytes\n",
- sc->unit, mtx, len);
-#endif
-
-#ifndef NETGRAPH
- if (ifp->if_bpf)
- bpf_mtap(ifp, mtx);
-#else /* NETGRAPH */
- sc->outbytes += len;
-#endif /* NETGRAPH */
-
- /*
- * We can perform a straight copy because the tranmit
- * buffers won't wrap.
- */
- m_copydata(mtx, 0, len, txdata);
-
- /*
- * Now we know how big the message is gonna be. We must now
- * construct the descriptors to drive this message out...
- */
- tlen = len;
- while (tlen > SR_BUF_SIZ) { /* loop for full granules */
- txdesc->stat = 0; /* reset bits */
- txdesc->len = SR_BUF_SIZ; /* size of granule */
- tlen -= SR_BUF_SIZ;
-
- txdesc++; /* move to next dscr */
- txdata += SR_BUF_SIZ; /* adjust data addr */
- i++;
- }
-
- /*
- * This section handles the setting of the final piece of a
- * message.
- */
- txdesc->stat = SCA_DESC_EOM;
- txdesc->len = tlen;
- pkts++;
-
- /*
- * prepare for subsequent packets (if any)
- */
- txdesc++;
- txdata += SR_BUF_SIZ; /* next mem granule */
- i++; /* count of granules */
-
- /*
- * OK, we've now placed the message into the DPRAM where it
- * can be transmitted. We'll now release the message memory
- * and update the statistics...
- */
- m_freem(mtx);
-#ifndef NETGRAPH
- ++sc->ifsppp.pp_if.if_opackets;
-#else /* NETGRAPH */
- sc->opackets++;
-#endif /* NETGRAPH */
-
- /*
- * Check if we have space for another packet. XXX This is
- * hardcoded. A packet can't be larger than 3 buffers (3 x
- * 512).
- */
- if ((i + 3) >= blkp->txmax) { /* enough remains? */
-#if BUGGY > 9
- printf("sr%d.srstart: i=%d (%d pkts); card full.\n",
- sc->unit, i, pkts);
-#endif
- break;
- }
- /*
- * We'll pull the next message to be sent (if any)
- */
-#ifndef NETGRAPH
- mtx = sppp_dequeue(ifp);
-#else /* NETGRAPH */
- IF_DEQUEUE(&sc->xmitq_hipri, mtx);
- if (mtx == NULL) {
- IF_DEQUEUE(&sc->xmitq, mtx);
- }
-#endif /* NETGRAPH */
- if (!mtx) { /* no message? We're done! */
-#if BUGGY > 9
- printf("sr%d.srstart: pending=0, pkts=%d\n",
- sc->unit, pkts);
-#endif
- break;
- }
- }
-
- blkp->txtail = i; /* record next free granule */
-
- /*
- * Mark the last descriptor, so that the SCA know where to stop.
- */
- txdesc--; /* back up to last descriptor in list */
- txdesc->stat |= SCA_DESC_EOT; /* mark as end of list */
-
- /*
- * Now we'll reset the transmit granule's descriptor address so we
- * can record this in the structure and fire it off w/ the DMA
- * processor of the serial chip...
- */
- txdesc = (sca_descriptor *)blkp->txdesc;
- blkp->txeda = (u_short)((u_int)&txdesc[i]);
-
- sc->txb_inuse++; /* update inuse status */
- sc->txb_new++; /* new traffic wuz added */
-
- if (sc->txb_new == SR_TX_BLOCKS)
- sc->txb_new = 0;
-
- /*
- * If the tranmitter wasn't marked as "busy" we will force it to be
- * started...
- */
- if (sc->xmit_busy == 0) {
- sr_xmit(sc);
-#if BUGGY > 9
- printf("sr%d.srstart: called sr_xmit()\n", sc->unit);
-#endif
- }
- goto top_srstart;
-}
-
-#ifndef NETGRAPH
-/*
- * Handle ioctl's at the device level, though we *will* call up
- * a layer...
- */
-#if BUGGY > 2
-static int bug_splats[] = {0, 0, 0, 0, 0, 0, 0, 0};
-#endif
-
-static int
-srioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
-{
- int s, error, was_up, should_be_up;
- struct sr_softc *sc = ifp->if_softc;
-
-#if BUGGY > 0
- printf("sr%d: srioctl(ifp=%08x, cmd=%08x, data=%08x)\n",
- ifp->if_unit, ifp, cmd, data);
-#endif
-
- was_up = ifp->if_flags & IFF_RUNNING;
-
- error = sppp_ioctl(ifp, cmd, data);
-
-#if BUGGY > 1
- printf("sr%d: ioctl: ifsppp.pp_flags = %08x, if_flags %08x.\n",
- ifp->if_unit, ((struct sppp *)ifp)->pp_flags, ifp->if_flags);
-#endif
-
- if (error)
- return error;
-
- if ((cmd != SIOCSIFFLAGS) && (cmd != SIOCSIFADDR)) {
-#if BUGGY > 2
- if (bug_splats[sc->unit]++ < 2) {
- printf("sr(%d).if_addrlist = %08x\n",
- sc->unit, ifp->if_addrlist);
- printf("sr(%d).if_bpf = %08x\n",
- sc->unit, ifp->if_bpf);
- printf("sr(%d).if_init = %08x\n",
- sc->unit, ifp->if_init);
- printf("sr(%d).if_output = %08x\n",
- sc->unit, ifp->if_output);
- printf("sr(%d).if_start = %08x\n",
- sc->unit, ifp->if_start);
- printf("sr(%d).if_done = %08x\n",
- sc->unit, ifp->if_done);
- printf("sr(%d).if_ioctl = %08x\n",
- sc->unit, ifp->if_ioctl);
- printf("sr(%d).if_reset = %08x\n",
- sc->unit, ifp->if_reset);
- printf("sr(%d).if_watchdog = %08x\n",
- sc->unit, ifp->if_watchdog);
- }
-#endif
- return 0;
- }
-
- s = splimp();
- should_be_up = ifp->if_flags & IFF_RUNNING;
-
- if (!was_up && should_be_up) {
- /*
- * Interface should be up -- start it.
- */
- sr_up(sc);
- srstart(ifp);
-
- /*
- * XXX Clear the IFF_UP flag so that the link will only go
- * up after sppp lcp and ipcp negotiation.
- */
- /* ifp->if_flags &= ~IFF_UP; */
- } else if (was_up && !should_be_up) {
- /*
- * Interface should be down -- stop it.
- */
- sr_down(sc);
- sppp_flush(ifp);
- }
- splx(s);
- return 0;
-}
-#endif /* NETGRAPH */
-
-/*
- * This is to catch lost tx interrupts.
- */
-static void
-#ifndef NETGRAPH
-srwatchdog(struct ifnet *ifp)
-#else
-srwatchdog(struct sr_softc *sc)
-#endif /* NETGRAPH */
-{
- int got_st0, got_st1, got_st3, got_dsr;
-#ifndef NETGRAPH
- struct sr_softc *sc = ifp->if_softc;
-#endif /* NETGRAPH */
- struct sr_hardc *hc = sc->hc;
- msci_channel *msci = &hc->sca->msci[sc->scachan];
- dmac_channel *dmac = &sc->hc->sca->dmac[sc->scachan];
-
-#if BUGGY > 0
-#ifndef NETGRAPH
- printf("srwatchdog(unit=%d)\n", unit);
-#else
- printf("srwatchdog(unit=%d)\n", sc->unit);
-#endif /* NETGRAPH */
-#endif
-
-#ifndef NETGRAPH
- if (!(ifp->if_flags & IFF_RUNNING))
- return;
-
- ifp->if_oerrors++; /* update output error count */
-#else /* NETGRAPH */
- sc->oerrors++; /* update output error count */
-#endif /* NETGRAPH */
-
- got_st0 = SRC_GET8(hc->sca_base, msci->st0);
- got_st1 = SRC_GET8(hc->sca_base, msci->st1);
- got_st3 = SRC_GET8(hc->sca_base, msci->st3);
- got_dsr = SRC_GET8(hc->sca_base, dmac->dsr);
-
-#ifndef NETGRAPH
-#if 0
- if (ifp->if_flags & IFF_DEBUG)
-#endif
- printf("sr%d: transmit failed, "
-#else /* NETGRAPH */
- printf("sr%d: transmit failed, "
-#endif /* NETGRAPH */
- "ST0 %02x, ST1 %02x, ST3 %02x, DSR %02x.\n",
- sc->unit,
- got_st0, got_st1, got_st3, got_dsr);
-
- if (SRC_GET8(hc->sca_base, msci->st1) & SCA_ST1_UDRN) {
- SRC_PUT8(hc->sca_base, msci->cmd, SCA_CMD_TXABORT);
- SRC_PUT8(hc->sca_base, msci->cmd, SCA_CMD_TXENABLE);
- SRC_PUT8(hc->sca_base, msci->st1, SCA_ST1_UDRN);
- }
- sc->xmit_busy = 0;
-#ifndef NETGRAPH
- ifp->if_flags &= ~IFF_OACTIVE;
-#else
- /*ifp->if_flags &= ~IFF_OACTIVE; */
-#endif /* NETGRAPH */
-
- if (sc->txb_inuse && --sc->txb_inuse)
- sr_xmit(sc);
-
-#ifndef NETGRAPH
- srstart(ifp); /* restart transmitter */
-#else
- srstart(sc); /* restart transmitter */
-#endif /* NETGRAPH */
-}
-
-static void
-sr_up(struct sr_softc *sc)
-{
- u_int *fecrp;
- struct sr_hardc *hc = sc->hc;
- sca_regs *sca = hc->sca;
- msci_channel *msci = &sca->msci[sc->scachan];
-
-#if BUGGY > 0
- printf("sr_up(sc=%08x)\n", sc);
-#endif
-
- /*
- * Enable transmitter and receiver. Raise DTR and RTS. Enable
- * interrupts.
- *
- * XXX What about using AUTO mode in msci->md0 ???
- */
- SRC_PUT8(hc->sca_base, msci->ctl,
- SRC_GET8(hc->sca_base, msci->ctl) & ~SCA_CTL_RTS);
-
- if (sc->scachan == 0)
- switch (hc->cardtype) {
- case SR_CRD_N2:
- outb(hc->iobase + SR_MCR,
- (inb(hc->iobase + SR_MCR) & ~SR_MCR_DTR0));
- break;
- case SR_CRD_N2PCI:
- fecrp = (u_int *)(hc->sca_base + SR_FECR);
- *fecrp &= ~SR_FECR_DTR0;
- break;
- }
- else
- switch (hc->cardtype) {
- case SR_CRD_N2:
- outb(hc->iobase + SR_MCR,
- (inb(hc->iobase + SR_MCR) & ~SR_MCR_DTR1));
- break;
- case SR_CRD_N2PCI:
- fecrp = (u_int *)(hc->sca_base + SR_FECR);
- *fecrp &= ~SR_FECR_DTR1;
- break;
- }
-
- if (sc->scachan == 0) {
- SRC_PUT8(hc->sca_base, sca->ier0,
- SRC_GET8(hc->sca_base, sca->ier0) | 0x000F);
- SRC_PUT8(hc->sca_base, sca->ier1,
- SRC_GET8(hc->sca_base, sca->ier1) | 0x000F);
- } else {
- SRC_PUT8(hc->sca_base, sca->ier0,
- SRC_GET8(hc->sca_base, sca->ier0) | 0x00F0);
- SRC_PUT8(hc->sca_base, sca->ier1,
- SRC_GET8(hc->sca_base, sca->ier1) | 0x00F0);
- }
-
- SRC_PUT8(hc->sca_base, msci->cmd, SCA_CMD_RXENABLE);
- inb(hc->iobase); /* XXX slow it down a bit. */
- SRC_PUT8(hc->sca_base, msci->cmd, SCA_CMD_TXENABLE);
-
-#ifndef NETGRAPH
-#ifdef USE_MODEMCK
- if (sr_watcher == 0)
- sr_modemck(NULL);
-#endif
-#else /* NETGRAPH */
- untimeout(ngsr_watchdog_frame, sc, sc->handle);
- sc->handle = timeout(ngsr_watchdog_frame, sc, hz);
- sc->running = 1;
-#endif /* NETGRAPH */
-}
-
-static void
-sr_down(struct sr_softc *sc)
-{
- u_int *fecrp;
- struct sr_hardc *hc = sc->hc;
- sca_regs *sca = hc->sca;
- msci_channel *msci = &sca->msci[sc->scachan];
-
-#if BUGGY > 0
- printf("sr_down(sc=%08x)\n", sc);
-#endif
-#ifdef NETGRAPH
- untimeout(ngsr_watchdog_frame, sc, sc->handle);
- sc->running = 0;
-#endif /* NETGRAPH */
-
- /*
- * Disable transmitter and receiver. Lower DTR and RTS. Disable
- * interrupts.
- */
- SRC_PUT8(hc->sca_base, msci->cmd, SCA_CMD_RXDISABLE);
- inb(hc->iobase); /* XXX slow it down a bit. */
- SRC_PUT8(hc->sca_base, msci->cmd, SCA_CMD_TXDISABLE);
-
- SRC_PUT8(hc->sca_base, msci->ctl,
- SRC_GET8(hc->sca_base, msci->ctl) | SCA_CTL_RTS);
-
- if (sc->scachan == 0)
- switch (hc->cardtype) {
- case SR_CRD_N2:
- outb(hc->iobase + SR_MCR,
- (inb(hc->iobase + SR_MCR) | SR_MCR_DTR0));
- break;
- case SR_CRD_N2PCI:
- fecrp = (u_int *)(hc->sca_base + SR_FECR);
- *fecrp |= SR_FECR_DTR0;
- break;
- }
- else
- switch (hc->cardtype) {
- case SR_CRD_N2:
- outb(hc->iobase + SR_MCR,
- (inb(hc->iobase + SR_MCR) | SR_MCR_DTR1));
- break;
- case SR_CRD_N2PCI:
- fecrp = (u_int *)(hc->sca_base + SR_FECR);
- *fecrp |= SR_FECR_DTR1;
- break;
- }
-
- if (sc->scachan == 0) {
- SRC_PUT8(hc->sca_base, sca->ier0,
- SRC_GET8(hc->sca_base, sca->ier0) & ~0x0F);
- SRC_PUT8(hc->sca_base, sca->ier1,
- SRC_GET8(hc->sca_base, sca->ier1) & ~0x0F);
- } else {
- SRC_PUT8(hc->sca_base, sca->ier0,
- SRC_GET8(hc->sca_base, sca->ier0) & ~0xF0);
- SRC_PUT8(hc->sca_base, sca->ier1,
- SRC_GET8(hc->sca_base, sca->ier1) & ~0xF0);
- }
-}
-
-/*
- * Initialize the card, allocate memory for the sr_softc structures
- * and fill in the pointers.
- */
-static void
-src_init(struct sr_hardc *hc)
-{
- struct sr_softc *sc = hc->sc;
- int x;
- u_int chanmem;
- u_int bufmem;
- u_int next;
- u_int descneeded;
-
-#if BUGGY > 0
- printf("src_init(hc=%08x)\n", hc);
-#endif
-
- chanmem = hc->memsize / hc->numports;
- next = 0;
-
- for (x = 0; x < hc->numports; x++, sc++) {
- int blk;
-
- for (blk = 0; blk < SR_TX_BLOCKS; blk++) {
- sc->block[blk].txdesc = next;
- bufmem = (16 * 1024) / SR_TX_BLOCKS;
- descneeded = bufmem / SR_BUF_SIZ;
-
- sc->block[blk].txstart = sc->block[blk].txdesc
- + ((((descneeded * sizeof(sca_descriptor))
- / SR_BUF_SIZ) + 1)
- * SR_BUF_SIZ);
-
- sc->block[blk].txend = next + bufmem;
- sc->block[blk].txmax =
- (sc->block[blk].txend - sc->block[blk].txstart)
- / SR_BUF_SIZ;
- next += bufmem;
-
-#if BUGGY > 2
- printf("sr%d: blk %d: txdesc %08x, txstart %08x\n",
- sc->unit, blk,
- sc->block[blk].txdesc, sc->block[blk].txstart);
-#endif
- }
-
- sc->rxdesc = next;
- bufmem = chanmem - (bufmem * SR_TX_BLOCKS);
- descneeded = bufmem / SR_BUF_SIZ;
- sc->rxstart = sc->rxdesc +
- ((((descneeded * sizeof(sca_descriptor)) /
- SR_BUF_SIZ) + 1) * SR_BUF_SIZ);
- sc->rxend = next + bufmem;
- sc->rxmax = (sc->rxend - sc->rxstart) / SR_BUF_SIZ;
- next += bufmem;
- }
-}
-
-/*
- * The things done here are channel independent.
- *
- * Configure the sca waitstates.
- * Configure the global interrupt registers.
- * Enable master dma enable.
- */
-static void
-sr_init_sca(struct sr_hardc *hc)
-{
- sca_regs *sca = hc->sca;
-
-#if BUGGY > 0
- printf("sr_init_sca(hc=%08x)\n", hc);
-#endif
-
- /*
- * Do the wait registers. Set everything to 0 wait states.
- */
- SRC_PUT8(hc->sca_base, sca->pabr0, 0);
- SRC_PUT8(hc->sca_base, sca->pabr1, 0);
- SRC_PUT8(hc->sca_base, sca->wcrl, 0);
- SRC_PUT8(hc->sca_base, sca->wcrm, 0);
- SRC_PUT8(hc->sca_base, sca->wcrh, 0);
-
- /*
- * Configure the interrupt registers. Most are cleared until the
- * interface is configured.
- */
- SRC_PUT8(hc->sca_base, sca->ier0, 0x00); /* MSCI interrupts. */
- SRC_PUT8(hc->sca_base, sca->ier1, 0x00); /* DMAC interrupts */
- SRC_PUT8(hc->sca_base, sca->ier2, 0x00); /* TIMER interrupts. */
- SRC_PUT8(hc->sca_base, sca->itcr, 0x00); /* Use ivr and no intr
- * ack */
- SRC_PUT8(hc->sca_base, sca->ivr, 0x40); /* Interrupt vector. */
- SRC_PUT8(hc->sca_base, sca->imvr, 0x40);
-
- /*
- * Configure the timers. XXX Later
- */
-
- /*
- * Set the DMA channel priority to rotate between all four channels.
- *
- * Enable all dma channels.
- */
- SRC_PUT8(hc->sca_base, sca->pcr, SCA_PCR_PR2);
- SRC_PUT8(hc->sca_base, sca->dmer, SCA_DMER_EN);
-}
-
-/*
- * Configure the msci
- *
- * NOTE: The serial port configuration is hardcoded at the moment.
- */
-static void
-sr_init_msci(struct sr_softc *sc)
-{
- int portndx; /* on-board port number */
- u_int mcr_v; /* contents of modem control */
- u_int *fecrp; /* pointer for PCI's MCR i/o */
- struct sr_hardc *hc = sc->hc;
- msci_channel *msci = &hc->sca->msci[sc->scachan];
-#ifdef N2_TEST_SPEED
- int br_v; /* contents for BR divisor */
- int etcndx; /* index into ETC table */
- int fifo_v, gotspeed; /* final tabled speed found */
- int tmc_v; /* timer control register */
- int wanted; /* speed (bitrate) wanted... */
- struct rate_line *rtp;
-#endif
-
- portndx = sc->scachan;
-
-#if BUGGY > 0
- printf("sr: sr_init_msci( sc=%08x)\n", sc);
-#endif
-
- SRC_PUT8(hc->sca_base, msci->cmd, SCA_CMD_RESET);
- SRC_PUT8(hc->sca_base, msci->md0, SCA_MD0_CRC_1 |
- SCA_MD0_CRC_CCITT |
- SCA_MD0_CRC_ENABLE |
- SCA_MD0_MODE_HDLC);
- SRC_PUT8(hc->sca_base, msci->md1, SCA_MD1_NOADDRCHK);
- SRC_PUT8(hc->sca_base, msci->md2, SCA_MD2_DUPLEX | SCA_MD2_NRZ);
-
- /*
- * According to the manual I should give a reset after changing the
- * mode registers.
- */
- SRC_PUT8(hc->sca_base, msci->cmd, SCA_CMD_RXRESET);
- SRC_PUT8(hc->sca_base, msci->ctl, SCA_CTL_IDLPAT |
- SCA_CTL_UDRNC |
- SCA_CTL_RTS);
-
- /*
- * XXX Later we will have to support different clock settings.
- */
- switch (sc->clk_cfg) {
- default:
-#if BUGGY > 0
- printf("sr%: clk_cfg=%08x, selected default clock.\n",
- portndx, sc->clk_cfg);
-#endif
- /* FALLTHROUGH */
- case SR_FLAGS_EXT_CLK:
- /*
- * For now all interfaces are programmed to use the RX clock
- * for the TX clock.
- */
-
-#if BUGGY > 0
- printf("sr%d: External Clock Selected.\n", portndx);
-#endif
-
- SRC_PUT8(hc->sca_base, msci->rxs, 0);
- SRC_PUT8(hc->sca_base, msci->txs, 0);
- break;
-
- case SR_FLAGS_EXT_SEP_CLK:
-#if BUGGY > 0
- printf("sr%d: Split Clocking Selected.\n", portndx);
-#endif
-
-#if 1
- SRC_PUT8(hc->sca_base, msci->rxs, 0);
- SRC_PUT8(hc->sca_base, msci->txs, 0);
-#else
- SRC_PUT8(hc->sca_base, msci->rxs,
- SCA_RXS_CLK_RXC0 | SCA_RXS_DIV1);
-
- /*
- * We need to configure the internal bit clock for the
- * transmitter's channel...
- */
- SRC_PUT8(hc->sca_base, msci->txs,
- SCA_TXS_CLK_RX | SCA_TXS_DIV1);
-#endif
- break;
-
- case SR_FLAGS_INT_CLK:
-#if BUGGY > 0
- printf("sr%d: Internal Clocking selected.\n", portndx);
-#endif
-
- /*
- * XXX I do need some code to set the baud rate here!
- */
-#ifdef N2_TEST_SPEED
- switch (hc->cardtype) {
- case SR_CRD_N2PCI:
- fecrp = (u_int *)(hc->sca_base + SR_FECR);
- mcr_v = *fecrp;
- etcndx = 2;
- break;
- case SR_CRD_N2:
- default:
- mcr_v = inb(hc->iobase + SR_MCR);
- etcndx = 0;
- }
-
- fifo_v = 0x10; /* stolen from Linux version */
-
- /*
- * search for appropriate speed in table, don't calc it:
- */
- wanted = sr_test_speed[portndx];
- rtp = &n2_rates[0]; /* point to first table item */
-
- while ((rtp->target > 0) /* search table for speed */
- &&(rtp->target != wanted))
- rtp++;
-
- /*
- * We've searched the table for a matching speed. If we've
- * found the correct rate line, we'll get the pre-calc'd
- * values for the TMC and baud rate divisor for subsequent
- * use...
- */
- if (rtp->target > 0) { /* use table-provided values */
- gotspeed = wanted;
- tmc_v = rtp->tmc_reg;
- br_v = rtp->br_reg;
- } else { /* otherwise assume 1MBit comm rate */
- gotspeed = 10000;
- tmc_v = 5;
- br_v = 1;
- }
-
- /*
- * Now we mask in the enable clock output for the MCR:
- */
- mcr_v |= etc0vals[etcndx + portndx];
-
- /*
- * Now we'll program the registers with these speed- related
- * contents...
- */
- SRC_PUT8(hc->sca_base, msci->tmc, tmc_v);
- SRC_PUT8(hc->sca_base, msci->trc0, fifo_v);
- SRC_PUT8(hc->sca_base, msci->rxs, SCA_RXS_CLK_INT + br_v);
- SRC_PUT8(hc->sca_base, msci->txs, SCA_TXS_CLK_INT + br_v);
-
- switch (hc->cardtype) {
- case SR_CRD_N2PCI:
- *fecrp = mcr_v;
- break;
- case SR_CRD_N2:
- default:
- outb(hc->iobase + SR_MCR, mcr_v);
- }
-
-#if BUGGY > 0
- if (wanted != gotspeed)
- printf("sr%d: Speed wanted=%d, found=%d\n",
- wanted, gotspeed);
-
- printf("sr%d: Internal Clock %dx100 BPS, tmc=%d, div=%d\n",
- portndx, gotspeed, tmc_v, br_v);
-#endif
-#else
- SRC_PUT8(hc->sca_base, msci->rxs,
- SCA_RXS_CLK_INT | SCA_RXS_DIV1);
- SRC_PUT8(hc->sca_base, msci->txs,
- SCA_TXS_CLK_INT | SCA_TXS_DIV1);
-
- SRC_PUT8(hc->sca_base, msci->tmc, 5);
-
- if (portndx == 0)
- switch (hc->cardtype) {
- case SR_CRD_N2PCI:
- fecrp = (u_int *)(hc->sca_base + SR_FECR);
- *fecrp |= SR_FECR_ETC0;
- break;
- case SR_CRD_N2:
- default:
- mcr_v = inb(hc->iobase + SR_MCR);
- mcr_v |= SR_MCR_ETC0;
- outb(hc->iobase + SR_MCR, mcr_v);
- }
- else
- switch (hc->cardtype) {
- case SR_CRD_N2:
- mcr_v = inb(hc->iobase + SR_MCR);
- mcr_v |= SR_MCR_ETC1;
- outb(hc->iobase + SR_MCR, mcr_v);
- break;
- case SR_CRD_N2PCI:
- fecrp = (u_int *)(hc->sca_base + SR_FECR);
- *fecrp |= SR_FECR_ETC1;
- break;
- }
-#endif
- }
-
- /*
- * XXX Disable all interrupts for now. I think if you are using the
- * dmac you don't use these interrupts.
- */
- SRC_PUT8(hc->sca_base, msci->ie0, 0);
- SRC_PUT8(hc->sca_base, msci->ie1, 0x0C);
- SRC_PUT8(hc->sca_base, msci->ie2, 0);
- SRC_PUT8(hc->sca_base, msci->fie, 0);
-
- SRC_PUT8(hc->sca_base, msci->sa0, 0);
- SRC_PUT8(hc->sca_base, msci->sa1, 0);
-
- SRC_PUT8(hc->sca_base, msci->idl, 0x7E); /* set flags value */
-
- SRC_PUT8(hc->sca_base, msci->rrc, 0x0E);
- SRC_PUT8(hc->sca_base, msci->trc0, 0x10);
- SRC_PUT8(hc->sca_base, msci->trc1, 0x1F);
-}
-
-/*
- * Configure the rx dma controller.
- */
-static void
-sr_init_rx_dmac(struct sr_softc *sc)
-{
- struct sr_hardc *hc;
- dmac_channel *dmac;
- sca_descriptor *rxd;
- u_int cda_v, sarb_v, rxbuf, rxda, rxda_d;
-
-#if BUGGY > 0
- printf("sr_init_rx_dmac(sc=%08x)\n", sc);
-#endif
-
- hc = sc->hc;
- dmac = &hc->sca->dmac[DMAC_RXCH(sc->scachan)];
-
- if (hc->mempages)
- SRC_SET_MEM(hc->iobase, sc->rxdesc);
-
- /*
- * This phase initializes the contents of the descriptor table
- * needed to construct a circular buffer...
- */
- rxd = (sca_descriptor *)(hc->mem_start + (sc->rxdesc & hc->winmsk));
- rxda_d = (u_int) hc->mem_start - (sc->rxdesc & ~hc->winmsk);
-
- for (rxbuf = sc->rxstart;
- rxbuf < sc->rxend;
- rxbuf += SR_BUF_SIZ, rxd++) {
- /*
- * construct the circular chain...
- */
- rxda = (u_int) & rxd[1] - rxda_d + hc->mem_pstart;
- rxd->cp = (u_short)(rxda & 0xffff);
-
- /*
- * set the on-card buffer address...
- */
- rxd->bp = (u_short)((rxbuf + hc->mem_pstart) & 0xffff);
- rxd->bpb = (u_char)(((rxbuf + hc->mem_pstart) >> 16) & 0xff);
-
- rxd->len = 0; /* bytes resident w/in granule */
- rxd->stat = 0xff; /* The sca write here when finished */
- }
-
- /*
- * heal the chain so that the last entry points to the first...
- */
- rxd--;
- rxd->cp = (u_short)((sc->rxdesc + hc->mem_pstart) & 0xffff);
-
- /*
- * reset the reception handler's index...
- */
- sc->rxhind = 0;
-
- /*
- * We'll now configure the receiver's DMA logic...
- */
- SRC_PUT8(hc->sca_base, dmac->dsr, 0); /* Disable DMA transfer */
- SRC_PUT8(hc->sca_base, dmac->dcr, SCA_DCR_ABRT);
-
- /* XXX maybe also SCA_DMR_CNTE */
- SRC_PUT8(hc->sca_base, dmac->dmr, SCA_DMR_TMOD | SCA_DMR_NF);
- SRC_PUT16(hc->sca_base, dmac->bfl, SR_BUF_SIZ);
-
- cda_v = (u_short)((sc->rxdesc + hc->mem_pstart) & 0xffff);
- sarb_v = (u_char)(((sc->rxdesc + hc->mem_pstart) >> 16) & 0xff);
-
- SRC_PUT16(hc->sca_base, dmac->cda, cda_v);
- SRC_PUT8(hc->sca_base, dmac->sarb, sarb_v);
-
- rxd = (sca_descriptor *)sc->rxstart;
-
- SRC_PUT16(hc->sca_base, dmac->eda,
- (u_short)((u_int) & rxd[sc->rxmax - 1] & 0xffff));
-
- SRC_PUT8(hc->sca_base, dmac->dir, 0xF0);
-
-
- SRC_PUT8(hc->sca_base, dmac->dsr, SCA_DSR_DE); /* Enable DMA */
-}
-
-/*
- * Configure the TX DMA descriptors.
- * Initialize the needed values and chain the descriptors.
- */
-static void
-sr_init_tx_dmac(struct sr_softc *sc)
-{
- int blk;
- u_int txbuf, txda, txda_d;
- struct sr_hardc *hc;
- sca_descriptor *txd;
- dmac_channel *dmac;
- struct buf_block *blkp;
- u_int x;
- u_int sarb_v;
-
-#if BUGGY > 0
- printf("sr_init_tx_dmac(sc=%08x)\n", sc);
-#endif
-
- hc = sc->hc;
- dmac = &hc->sca->dmac[DMAC_TXCH(sc->scachan)];
-
- if (hc->mempages)
- SRC_SET_MEM(hc->iobase, sc->block[0].txdesc);
-
- /*
- * Initialize the array of descriptors for transmission
- */
- for (blk = 0; blk < SR_TX_BLOCKS; blk++) {
- blkp = &sc->block[blk];
- txd = (sca_descriptor *)(hc->mem_start
- + (blkp->txdesc & hc->winmsk));
- txda_d = (u_int) hc->mem_start
- - (blkp->txdesc & ~hc->winmsk);
-
- x = 0;
- txbuf = blkp->txstart;
- for (; txbuf < blkp->txend; txbuf += SR_BUF_SIZ, txd++) {
- txda = (u_int) & txd[1] - txda_d + hc->mem_pstart;
- txd->cp = (u_short)(txda & 0xffff);
-
- txd->bp = (u_short)((txbuf + hc->mem_pstart)
- & 0xffff);
- txd->bpb = (u_char)(((txbuf + hc->mem_pstart) >> 16)
- & 0xff);
- txd->len = 0;
- txd->stat = 0;
- x++;
- }
-
- txd--;
- txd->cp = (u_short)((blkp->txdesc + hc->mem_pstart)
- & 0xffff);
-
- blkp->txtail = (u_int)txd - (u_int)hc->mem_start;
- }
-
- SRC_PUT8(hc->sca_base, dmac->dsr, 0); /* Disable DMA */
- SRC_PUT8(hc->sca_base, dmac->dcr, SCA_DCR_ABRT);
- SRC_PUT8(hc->sca_base, dmac->dmr, SCA_DMR_TMOD | SCA_DMR_NF);
- SRC_PUT8(hc->sca_base, dmac->dir,
- SCA_DIR_EOT | SCA_DIR_BOF | SCA_DIR_COF);
-
- sarb_v = (sc->block[0].txdesc + hc->mem_pstart) >> 16;
- sarb_v &= 0x00ff;
-
- SRC_PUT8(hc->sca_base, dmac->sarb, (u_char) sarb_v);
-}
-
-/*
- * Look through the descriptors to see if there is a complete packet
- * available. Stop if we get to where the sca is busy.
- *
- * Return the length and status of the packet.
- * Return nonzero if there is a packet available.
- *
- * NOTE:
- * It seems that we get the interrupt a bit early. The updateing of
- * descriptor values is not always completed when this is called.
- */
-static int
-sr_packet_avail(struct sr_softc *sc, int *len, u_char *rxstat)
-{
- int granules; /* count of granules in pkt */
- int wki, wko;
- struct sr_hardc *hc;
- sca_descriptor *rxdesc; /* current descriptor */
- sca_descriptor *endp; /* ending descriptor */
- sca_descriptor *cda; /* starting descriptor */
-
- hc = sc->hc; /* get card's information */
-
- /*
- * set up starting descriptor by pulling that info from the DMA half
- * of the HD chip...
- */
- wki = DMAC_RXCH(sc->scachan);
- wko = SRC_GET16(hc->sca_base, hc->sca->dmac[wki].cda);
-
- cda = (sca_descriptor *)(hc->mem_start + (wko & hc->winmsk));
-
-#if BUGGY > 1
- printf("sr_packet_avail(): wki=%d, wko=%04x, cda=%08x\n",
- wki, wko, cda);
-#endif
-
- /*
- * open the appropriate memory window and set our expectations...
- */
- if (hc->mempages) {
- SRC_SET_MEM(hc->iobase, sc->rxdesc);
- SRC_SET_ON(hc->iobase);
- }
- rxdesc = (sca_descriptor *)
- (hc->mem_start + (sc->rxdesc & hc->winmsk));
- endp = rxdesc;
- rxdesc = &rxdesc[sc->rxhind];
- endp = &endp[sc->rxmax];
-
- *len = 0; /* reset result total length */
- granules = 0; /* reset count of granules */
-
- /*
- * This loop will scan descriptors, but it *will* puke up if we wrap
- * around to our starting point...
- */
- while (rxdesc != cda) {
- *len += rxdesc->len; /* increment result length */
- granules++;
-
- /*
- * If we hit a valid packet's completion we'll know we've
- * got a live one, and that we can deliver the packet.
- * Since we're only allowed to report a packet available,
- * somebody else does that...
- */
- if (rxdesc->stat & SCA_DESC_EOM) { /* End Of Message */
- *rxstat = rxdesc->stat; /* return closing */
-#if BUGGY > 0
- printf("sr%d: PKT AVAIL len %d, %x, bufs %u.\n",
- sc->unit, *len, *rxstat, granules);
-#endif
- return 1; /* indicate success */
- }
- /*
- * OK, this packet take up multiple granules. Move on to
- * the next descriptor so we can consider it...
- */
- rxdesc++;
-
- if (rxdesc == endp) /* recognize & act on wrap point */
- rxdesc = (sca_descriptor *)
- (hc->mem_start + (sc->rxdesc & hc->winmsk));
- }
-
- /*
- * Nothing found in the DPRAM. Let the caller know...
- */
- *len = 0;
- *rxstat = 0;
-
- return 0;
-}
-
-/*
- * Copy a packet from the on card memory into a provided mbuf.
- * Take into account that buffers wrap and that a packet may
- * be larger than a buffer.
- */
-static void
-sr_copy_rxbuf(struct mbuf *m, struct sr_softc *sc, int len)
-{
- struct sr_hardc *hc;
- sca_descriptor *rxdesc;
- u_int rxdata;
- u_int rxmax;
- u_int off = 0;
- u_int tlen;
-
-#if BUGGY > 0
- printf("sr_copy_rxbuf(m=%08x,sc=%08x,len=%d)\n",
- m, sc, len);
-#endif
-
- hc = sc->hc;
-
- rxdata = sc->rxstart + (sc->rxhind * SR_BUF_SIZ);
- rxmax = sc->rxstart + (sc->rxmax * SR_BUF_SIZ);
-
- rxdesc = (sca_descriptor *)
- (hc->mem_start + (sc->rxdesc & hc->winmsk));
- rxdesc = &rxdesc[sc->rxhind];
-
- /*
- * Using the count of bytes in the received packet, we decrement it
- * for each granule (controller by an SCA descriptor) to control the
- * looping...
- */
- while (len) {
- /*
- * tlen gets the length of *this* granule... ...which is
- * then copied to the target buffer.
- */
- tlen = (len < SR_BUF_SIZ) ? len : SR_BUF_SIZ;
-
- if (hc->mempages)
- SRC_SET_MEM(hc->iobase, rxdata);
-
- bcopy(hc->mem_start + (rxdata & hc->winmsk),
- mtod(m, caddr_t) +off,
- tlen);
-
- off += tlen;
- len -= tlen;
-
- /*
- * now, return to the descriptor's window in DPRAM and reset
- * the descriptor we've just suctioned...
- */
- if (hc->mempages)
- SRC_SET_MEM(hc->iobase, sc->rxdesc);
-
- rxdesc->len = 0;
- rxdesc->stat = 0xff;
-
- /*
- * Move on to the next granule. If we've any remaining
- * bytes to process we'll just continue in our loop...
- */
- rxdata += SR_BUF_SIZ;
- rxdesc++;
-
- if (rxdata == rxmax) { /* handle the wrap point */
- rxdata = sc->rxstart;
- rxdesc = (sca_descriptor *)
- (hc->mem_start + (sc->rxdesc & hc->winmsk));
- }
- }
-}
-
-/*
- * If single is set, just eat a packet. Otherwise eat everything up to
- * where cda points. Update pointers to point to the next packet.
- *
- * This handles "flushing" of a packet as received...
- *
- * If the "single" parameter is zero, all pending reeceive traffic will
- * be flushed out of existence. A non-zero value will only drop the
- * *next* (currently) pending packet...
- */
-static void
-sr_eat_packet(struct sr_softc *sc, int single)
-{
- struct sr_hardc *hc;
- sca_descriptor *rxdesc; /* current descriptor being eval'd */
- sca_descriptor *endp; /* last descriptor in chain */
- sca_descriptor *cda; /* current start point */
- u_int loopcnt = 0; /* count of packets flushed ??? */
- u_char stat; /* captured status byte from descr */
-
- hc = sc->hc;
- cda = (sca_descriptor *)(hc->mem_start +
- (SRC_GET16(hc->sca_base,
- hc->sca->dmac[DMAC_RXCH(sc->scachan)].cda) &
- hc->winmsk));
-
- /*
- * loop until desc->stat == (0xff || EOM) Clear the status and
- * length in the descriptor. Increment the descriptor.
- */
- if (hc->mempages)
- SRC_SET_MEM(hc->iobase, sc->rxdesc);
-
- rxdesc = (sca_descriptor *)
- (hc->mem_start + (sc->rxdesc & hc->winmsk));
- endp = rxdesc;
- rxdesc = &rxdesc[sc->rxhind];
- endp = &endp[sc->rxmax];
-
- /*
- * allow loop, but abort it if we wrap completely...
- */
- while (rxdesc != cda) {
- loopcnt++;
-
- if (loopcnt > sc->rxmax) {
- printf("sr%d: eat pkt %d loop, cda %x, "
- "rxdesc %x, stat %x.\n",
- sc->unit, loopcnt, (u_int) cda, (u_int) rxdesc,
- rxdesc->stat);
- break;
- }
- stat = rxdesc->stat;
-
- rxdesc->len = 0;
- rxdesc->stat = 0xff;
-
- rxdesc++;
- sc->rxhind++;
-
- if (rxdesc == endp) {
- rxdesc = (sca_descriptor *)
- (hc->mem_start + (sc->rxdesc & hc->winmsk));
- sc->rxhind = 0;
- }
- if (single && (stat == SCA_DESC_EOM))
- break;
- }
-
- /*
- * Update the eda to the previous descriptor.
- */
- rxdesc = (sca_descriptor *)sc->rxdesc;
- rxdesc = &rxdesc[(sc->rxhind + sc->rxmax - 2) % sc->rxmax];
-
- SRC_PUT16(hc->sca_base,
- hc->sca->dmac[DMAC_RXCH(sc->scachan)].eda,
- (u_short)((u_int)(rxdesc + hc->mem_pstart) & 0xffff));
-}
-
-/*
- * While there is packets available in the rx buffer, read them out
- * into mbufs and ship them off.
- */
-static void
-sr_get_packets(struct sr_softc *sc)
-{
- u_char rxstat; /* acquired status byte */
- int i;
- int pkts; /* count of packets found */
- int rxndx; /* rcv buffer index */
- int tries; /* settling time counter */
- u_int len; /* length of pending packet */
- struct sr_hardc *hc; /* card-level information */
- sca_descriptor *rxdesc; /* descriptor in memory */
-#ifndef NETGRAPH
- struct ifnet *ifp; /* network intf ctl table */
-#else
- int error;
-#endif /* NETGRAPH */
- struct mbuf *m = NULL; /* message buffer */
-
-#if BUGGY > 0
- printf("sr_get_packets(sc=%08x)\n", sc);
-#endif
-
- hc = sc->hc;
-#ifndef NETGRAPH
- ifp = &sc->ifsppp.pp_if;
-#endif /* NETGRAPH */
-
- if (hc->mempages) {
- SRC_SET_MEM(hc->iobase, sc->rxdesc);
- SRC_SET_ON(hc->iobase); /* enable shared memory */
- }
- pkts = 0; /* reset count of found packets */
-
- /*
- * for each complete packet in the receiving pool, process each
- * packet...
- */
- while (sr_packet_avail(sc, &len, &rxstat)) { /* packet pending? */
- /*
- * I have seen situations where we got the interrupt but the
- * status value wasn't deposited. This code should allow
- * the status byte's value to settle...
- */
-
- tries = 5;
-
- while ((rxstat == 0x00ff)
- && --tries)
- sr_packet_avail(sc, &len, &rxstat);
-
-#if BUGGY > 1
- printf("sr_packet_avail() returned len=%d, rxstat=%02ux\n",
- len, rxstat);
-#endif
-
- pkts++;
-#ifdef NETGRAPH
- sc->inbytes += len;
- sc->inlast = 0;
-#endif /* NETGRAPH */
-
- /*
- * OK, we've settled the incoming message status. We can now
- * process it...
- */
- if (((rxstat & SCA_DESC_ERRORS) == 0) && (len < MCLBYTES)) {
-#if BUGGY > 1
- printf("sr%d: sr_get_packet() rxstat=%02x, len=%d\n",
- sc->unit, rxstat, len);
-#endif
-
- MGETHDR(m, M_DONTWAIT, MT_DATA);
- if (m == NULL) {
- /*
- * eat (flush) packet if get mbuf fail!!
- */
- sr_eat_packet(sc, 1);
- continue;
- }
- /*
- * construct control information for pass-off
- */
-#ifndef NETGRAPH
- m->m_pkthdr.rcvif = ifp;
-#else
- m->m_pkthdr.rcvif = NULL;
-#endif /* NETGRAPH */
- m->m_pkthdr.len = m->m_len = len;
- if (len > MHLEN) {
- MCLGET(m, M_DONTWAIT);
- if ((m->m_flags & M_EXT) == 0) {
- /*
- * We couldn't get a big enough
- * message packet, so we'll send the
- * packet to /dev/null...
- */
- m_freem(m);
- sr_eat_packet(sc, 1);
- continue;
- }
- }
- /*
- * OK, we've got a good message buffer. Now we can
- * copy the received message into it
- */
- sr_copy_rxbuf(m, sc, len); /* copy from DPRAM */
-
-#ifndef NETGRAPH
- if (ifp->if_bpf)
- bpf_mtap(ifp, m);
-
-#if BUGGY > 3
- {
- u_char *bp;
-
- bp = (u_char *)m;
- printf("sr%d: rcvd=%02x%02x%02x%02x%02x%02x\n",
- sc->unit,
- bp[0], bp[1], bp[2],
- bp[4], bp[5], bp[6]);
- }
-#endif
- sppp_input(ifp, m);
- ifp->if_ipackets++;
-
-#else /* NETGRAPH */
-#if BUGGY > 3
- {
- u_char *bp;
-
- bp = mtod(m,u_char *);
- printf("sr%d: rd=%02x:%02x:%02x:%02x:%02x:%02x",
- sc->unit,
- bp[0], bp[1], bp[2],
- bp[4], bp[5], bp[6]);
- printf(":%02x:%02x:%02x:%02x:%02x:%02x\n",
- bp[6], bp[7], bp[8],
- bp[9], bp[10], bp[11]);
- }
-#endif
- NG_SEND_DATA_ONLY(error, sc->hook, m);
- sc->ipackets++;
-#endif /* NETGRAPH */
- /*
- * Update the eda to the previous descriptor.
- */
- i = (len + SR_BUF_SIZ - 1) / SR_BUF_SIZ;
- sc->rxhind = (sc->rxhind + i) % sc->rxmax;
-
- rxdesc = (sca_descriptor *)sc->rxdesc;
- rxndx = (sc->rxhind + sc->rxmax - 2) % sc->rxmax;
- rxdesc = &rxdesc[rxndx];
-
- SRC_PUT16(hc->sca_base,
- hc->sca->dmac[DMAC_RXCH(sc->scachan)].eda,
- (u_short)((u_int)(rxdesc + hc->mem_pstart)
- & 0xffff));
-
- } else {
- int got_st3, got_cda, got_eda;
- int tries = 5;
-
- while((rxstat == 0xff) && --tries)
- sr_packet_avail(sc, &len, &rxstat);
-
- /*
- * It look like we get an interrupt early
- * sometimes and then the status is not
- * filled in yet.
- */
- if(tries && (tries != 5))
- continue;
-
- /*
- * This chunk of code handles the error packets.
- * We'll log them for posterity...
- */
- sr_eat_packet(sc, 1);
-
-#ifndef NETGRAPH
- ifp->if_ierrors++;
-#else
- sc->ierrors[0]++;
-#endif /* NETGRAPH */
-
- got_st3 = SRC_GET8(hc->sca_base,
- hc->sca->msci[sc->scachan].st3);
- got_cda = SRC_GET16(hc->sca_base,
- hc->sca->dmac[DMAC_RXCH(sc->scachan)].cda);
- got_eda = SRC_GET16(hc->sca_base,
- hc->sca->dmac[DMAC_RXCH(sc->scachan)].eda);
-
-#if BUGGY > 0
- printf("sr%d: Receive error chan %d, "
- "stat %02x, msci st3 %02x,"
- "rxhind %d, cda %04x, eda %04x.\n",
- sc->unit, sc->scachan, rxstat,
- got_st3, sc->rxhind, got_cda, got_eda);
-#endif
- }
- }
-
-#if BUGGY > 0
- printf("sr%d: sr_get_packets() found %d packet(s)\n",
- sc->unit, pkts);
-#endif
-
- if (hc->mempages)
- SRC_SET_OFF(hc->iobase);
-}
-
-/*
- * All DMA interrupts come here.
- *
- * Each channel has two interrupts.
- * Interrupt A for errors and Interrupt B for normal stuff like end
- * of transmit or receive dmas.
- */
-static void
-sr_dmac_intr(struct sr_hardc *hc, u_char isr1)
-{
- u_char dsr; /* contents of DMA Stat Reg */
- u_char dotxstart; /* enables for tranmit part */
- int mch; /* channel being processed */
- struct sr_softc *sc; /* channel's softc structure */
- sca_regs *sca = hc->sca;
- dmac_channel *dmac; /* dma structure of chip */
-
-#if BUGGY > 0
- printf("sr_dmac_intr(hc=%08x,isr1=%04x)\n", hc, isr1);
-#endif
-
- mch = 0; /* assume chan0 on card */
- dotxstart = isr1; /* copy for xmitter starts */
-
- /*
- * Shortcut if there is no interrupts for dma channel 0 or 1.
- * Skip processing for channel 0 if no incoming hit
- */
- if ((isr1 & 0x0F) == 0) {
- mch = 1;
- isr1 >>= 4;
- }
- do {
- sc = &hc->sc[mch];
-
- /*
- * Transmit channel - DMA Status Register Evaluation
- */
- if (isr1 & 0x0C) {
- dmac = &sca->dmac[DMAC_TXCH(mch)];
-
- /*
- * get the DMA Status Register contents and write
- * back to reset interrupt...
- */
- dsr = SRC_GET8(hc->sca_base, dmac->dsr);
- SRC_PUT8(hc->sca_base, dmac->dsr, dsr);
-
- /*
- * Check for (& process) a Counter overflow
- */
- if (dsr & SCA_DSR_COF) {
- printf("sr%d: TX DMA Counter overflow, "
- "txpacket no %lu.\n",
-#ifndef NETGRAPH
- sc->unit, sc->ifsppp.pp_if.if_opackets);
- sc->ifsppp.pp_if.if_oerrors++;
-#else
- sc->unit, sc->opackets);
- sc->oerrors++;
-#endif /* NETGRAPH */
- }
- /*
- * Check for (& process) a Buffer overflow
- */
- if (dsr & SCA_DSR_BOF) {
- printf("sr%d: TX DMA Buffer overflow, "
- "txpacket no %lu, dsr %02x, "
- "cda %04x, eda %04x.\n",
-#ifndef NETGRAPH
- sc->unit, sc->ifsppp.pp_if.if_opackets,
-#else
- sc->unit, sc->opackets,
-#endif /* NETGRAPH */
- dsr,
- SRC_GET16(hc->sca_base, dmac->cda),
- SRC_GET16(hc->sca_base, dmac->eda));
-#ifndef NETGRAPH
- sc->ifsppp.pp_if.if_oerrors++;
-#else
- sc->oerrors++;
-#endif /* NETGRAPH */
- }
- /*
- * Check for (& process) an End of Transfer (OK)
- */
- if (dsr & SCA_DSR_EOT) {
- /*
- * This should be the most common case.
- *
- * Clear the IFF_OACTIVE flag.
- *
- * Call srstart to start a new transmit if
- * there is data to transmit.
- */
-#if BUGGY > 0
- printf("sr%d: TX Completed OK\n", sc->unit);
-#endif
- sc->xmit_busy = 0;
-#ifndef NETGRAPH
- sc->ifsppp.pp_if.if_flags &= ~IFF_OACTIVE;
- sc->ifsppp.pp_if.if_timer = 0;
-#else
- /* XXX may need to mark tx inactive? */
- sc->out_deficit++;
- sc->out_dog = DOG_HOLDOFF;
-#endif /* NETGRAPH */
-
- if (sc->txb_inuse && --sc->txb_inuse)
- sr_xmit(sc);
- }
- }
- /*
- * Receive channel processing of DMA Status Register
- */
- if (isr1 & 0x03) {
- dmac = &sca->dmac[DMAC_RXCH(mch)];
-
- dsr = SRC_GET8(hc->sca_base, dmac->dsr);
- SRC_PUT8(hc->sca_base, dmac->dsr, dsr);
-
- /*
- * End of frame processing (MSG OK?)
- */
- if (dsr & SCA_DSR_EOM) {
-#if BUGGY > 0
- int tt, ind;
-
-#ifndef NETGRAPH
- tt = sc->ifsppp.pp_if.if_ipackets;
-#else /* NETGRAPH */
- tt = sc->ipackets;
-#endif /* NETGRAPH */
- ind = sc->rxhind;
-#endif
-
- sr_get_packets(sc);
-#if BUGGY > 0
-#ifndef NETGRAPH
- if (tt == sc->ifsppp.pp_if.if_ipackets)
-#else /* NETGRAPH */
- if (tt == sc->ipackets)
-#endif /* NETGRAPH */
- {
- sca_descriptor *rxdesc;
- int i;
-
- printf("SR: RXINTR isr1 %x, dsr %x, "
- "no data %d pkts, orxind %d.\n",
- dotxstart, dsr, tt, ind);
- printf("SR: rxdesc %x, rxstart %x, "
- "rxend %x, rxhind %d, "
- "rxmax %d.\n",
- sc->rxdesc, sc->rxstart,
- sc->rxend, sc->rxhind,
- sc->rxmax);
- printf("SR: cda %x, eda %x.\n",
- SRC_GET16(hc->sca_base, dmac->cda),
- SRC_GET16(hc->sca_base, dmac->eda));
-
- if (hc->mempages) {
- SRC_SET_ON(hc->iobase);
- SRC_SET_MEM(hc->iobase, sc->rxdesc);
- }
- rxdesc = (sca_descriptor *)
- (hc->mem_start +
- (sc->rxdesc & hc->winmsk));
- rxdesc = &rxdesc[sc->rxhind];
-
- for (i = 0; i < 3; i++, rxdesc++)
- printf("SR: rxdesc->stat %x, "
- "len %d.\n",
- rxdesc->stat,
- rxdesc->len);
-
- if (hc->mempages)
- SRC_SET_OFF(hc->iobase);
- }
-#endif /* BUGGY */
- }
- /*
- * Check for Counter overflow
- */
- if (dsr & SCA_DSR_COF) {
- printf("sr%d: RX DMA Counter overflow, "
- "rxpkts %lu.\n",
-#ifndef NETGRAPH
- sc->unit, sc->ifsppp.pp_if.if_ipackets);
- sc->ifsppp.pp_if.if_ierrors++;
-#else /* NETGRAPH */
- sc->unit, sc->ipackets);
- sc->ierrors[1]++;
-#endif /* NETGRAPH */
- }
- /*
- * Check for Buffer overflow
- */
- if (dsr & SCA_DSR_BOF) {
- printf("sr%d: RX DMA Buffer overflow, "
- "rxpkts %lu, rxind %d, "
- "cda %x, eda %x, dsr %x.\n",
-#ifndef NETGRAPH
- sc->unit, sc->ifsppp.pp_if.if_ipackets,
-#else /* NETGRAPH */
- sc->unit, sc->ipackets,
-#endif /* NETGRAPH */
- sc->rxhind,
- SRC_GET16(hc->sca_base, dmac->cda),
- SRC_GET16(hc->sca_base, dmac->eda),
- dsr);
-
- /*
- * Make sure we eat as many as possible.
- * Then get the system running again.
- */
- if (hc->mempages)
- SRC_SET_ON(hc->iobase);
-
- sr_eat_packet(sc, 0);
-#ifndef NETGRAPH
- sc->ifsppp.pp_if.if_ierrors++;
-#else /* NETGRAPH */
- sc->ierrors[2]++;
-#endif /* NETGRAPH */
-
- SRC_PUT8(hc->sca_base,
- sca->msci[mch].cmd,
- SCA_CMD_RXMSGREJ);
-
- SRC_PUT8(hc->sca_base, dmac->dsr, SCA_DSR_DE);
-
-#if BUGGY > 0
- printf("sr%d: RX DMA Buffer overflow, "
- "rxpkts %lu, rxind %d, "
- "cda %x, eda %x, dsr %x. After\n",
- sc->unit,
-#ifndef NETGRAPH
- sc->ipackets,
-#else /* NETGRAPH */
- sc->ifsppp.pp_if.if_ipackets,
-#endif /* NETGRAPH */
- sc->rxhind,
- SRC_GET16(hc->sca_base, dmac->cda),
- SRC_GET16(hc->sca_base, dmac->eda),
- SRC_GET8(hc->sca_base, dmac->dsr));
-#endif
-
- if (hc->mempages)
- SRC_SET_OFF(hc->iobase);
- }
- /*
- * End of Transfer
- */
- if (dsr & SCA_DSR_EOT) {
- /*
- * If this happen, it means that we are
- * receiving faster than what the processor
- * can handle.
- *
- * XXX We should enable the dma again.
- */
- printf("sr%d: RX End of xfer, rxpkts %lu.\n",
- sc->unit,
-#ifndef NETGRAPH
- sc->ifsppp.pp_if.if_ipackets);
- sc->ifsppp.pp_if.if_ierrors++;
-#else
- sc->ipackets);
- sc->ierrors[3]++;
-#endif /* NETGRAPH */
- }
- }
- isr1 >>= 4; /* process next half of ISR */
- mch++; /* and move to next channel */
- } while ((mch < NCHAN) && isr1); /* loop for each chn */
-
- /*
- * Now that we have done all the urgent things, see if we can fill
- * the transmit buffers.
- */
- for (mch = 0; mch < NCHAN; mch++) {
- if (dotxstart & 0x0C) { /* TX initiation enabled? */
- sc = &hc->sc[mch];
-#ifndef NETGRAPH
- srstart(&sc->ifsppp.pp_if);
-#else
- srstart(sc);
-#endif /* NETGRAPH */
- }
- dotxstart >>= 4;/* shift for next channel */
- }
-}
-#ifndef NETGRAPH
-/*
- * Perform timeout on an FR channel
- *
- * Establish a periodic check of open N2 ports; If
- * a port is open/active, its DCD state is checked
- * and a loss of DCD is recognized (and eventually
- * processed).
- */
-static void
-sr_modemck(void *arg)
-{
- u_int s;
- int card; /* card index in table */
- int cards; /* card list index */
- int mch; /* channel on card */
- u_char dcd_v; /* Data Carrier Detect */
- u_char got_st0; /* contents of ST0 */
- u_char got_st1; /* contents of ST1 */
- u_char got_st2; /* contents of ST2 */
- u_char got_st3; /* contents of ST3 */
- struct sr_hardc *hc; /* card's configuration */
- struct sr_hardc *Card[16];/* up to 16 cards in system */
- struct sr_softc *sc; /* channel's softc structure */
- struct ifnet *ifp; /* interface control table */
- msci_channel *msci; /* regs specific to channel */
-
- s = splimp();
-
-#if 0
- if (sr_opens == 0) { /* count of "up" channels */
- sr_watcher = 0; /* indicate no watcher */
- splx(s);
- return;
- }
-#endif
-
- sr_watcher = 1; /* mark that we're online */
-
- /*
- * Now we'll need a list of cards to process. Since we can handle
- * both ISA and PCI cards (and I didn't think of making this logic
- * global YET) we'll generate a single table of card table
- * addresses.
- */
- cards = 0;
-
- for (card = 0; card < NSR; card++) {
- hc = &sr_hardc[card];
-
- if (hc->sc == (void *)0)
- continue;
-
- Card[cards++] = hc;
- }
-
- hc = sr_hardc_pci;
-
- while (hc) {
- Card[cards++] = hc;
- hc = hc->next;
- }
-
- /*
- * OK, we've got work we can do. Let's do it... (Please note that
- * this code _only_ deals w/ ISA cards)
- */
- for (card = 0; card < cards; card++) {
- hc = Card[card];/* get card table */
-
- for (mch = 0; mch < hc->numports; mch++) {
- sc = &hc->sc[mch];
-
- ifp = &sc->ifsppp.pp_if;
-
- /*
- * if this channel isn't "up", skip it
- */
- if ((ifp->if_flags & IFF_UP) == 0)
- continue;
-
- /*
- * OK, now we can go looking at this channel's
- * actual register contents...
- */
- msci = &hc->sca->msci[sc->scachan];
-
- /*
- * OK, now we'll look into the actual status of this
- * channel...
- *
- * I suck in more registers than strictly needed
- */
- got_st0 = SRC_GET8(hc->sca_base, msci->st0);
- got_st1 = SRC_GET8(hc->sca_base, msci->st1);
- got_st2 = SRC_GET8(hc->sca_base, msci->st2);
- got_st3 = SRC_GET8(hc->sca_base, msci->st3);
-
- /*
- * We want to see if the DCD signal is up (DCD is
- * true if zero)
- */
- dcd_v = (got_st3 & SCA_ST3_DCD) == 0;
-
- if (dcd_v == 0)
- printf("sr%d: DCD lost\n", sc->unit);
- }
- }
-
- /*
- * OK, now set up for the next modem signal checking pass...
- */
- timeout(sr_modemck, NULL, hz);
-
- splx(s);
-}
-
-#else /* NETGRAPH */
-/*
- * If a port is open/active, it's DCD state is checked
- * and a loss of DCD is recognized (and eventually processed?).
- */
-static void
-sr_modemck(struct sr_softc *sc )
-{
- u_int s;
- u_char got_st3; /* contents of ST3 */
- struct sr_hardc *hc = sc->hc; /* card's configuration */
- msci_channel *msci; /* regs specific to channel */
-
- s = splimp();
-
-
- if (sc->running == 0)
- return;
- /*
- * OK, now we can go looking at this channel's register contents...
- */
- msci = &hc->sca->msci[sc->scachan];
- got_st3 = SRC_GET8(hc->sca_base, msci->st3);
-
- /*
- * We want to see if the DCD signal is up (DCD is true if zero)
- */
- sc->dcd = (got_st3 & SCA_ST3_DCD) == 0;
- splx(s);
-}
-
-#endif /* NETGRAPH */
-static void
-sr_msci_intr(struct sr_hardc *hc, u_char isr0)
-{
- printf("src%d: SRINTR: MSCI\n", hc->cunit);
-}
-
-static void
-sr_timer_intr(struct sr_hardc *hc, u_char isr2)
-{
- printf("src%d: SRINTR: TIMER\n", hc->cunit);
-}
-
-#ifdef NETGRAPH
-/*****************************************
- * Device timeout/watchdog routine.
- * called once per second.
- * checks to see that if activity was expected, that it hapenned.
- * At present we only look to see if expected output was completed.
- */
-static void
-ngsr_watchdog_frame(void * arg)
-{
- struct sr_softc * sc = arg;
- int s;
- int speed;
-
- if(sc->running == 0)
- return; /* if we are not running let timeouts die */
- /*
- * calculate the apparent throughputs
- * XXX a real hack
- */
- s = splimp();
- speed = sc->inbytes - sc->lastinbytes;
- sc->lastinbytes = sc->inbytes;
- if ( sc->inrate < speed )
- sc->inrate = speed;
- speed = sc->outbytes - sc->lastoutbytes;
- sc->lastoutbytes = sc->outbytes;
- if ( sc->outrate < speed )
- sc->outrate = speed;
- sc->inlast++;
- splx(s);
-
- if ((sc->inlast > QUITE_A_WHILE)
- && (sc->out_deficit > LOTS_OF_PACKETS)) {
- log(LOG_ERR, "sr%d: No response from remote end\n", sc->unit);
- s = splimp();
- sr_down(sc);
- sr_up(sc);
- sc->inlast = sc->out_deficit = 0;
- splx(s);
- } else if ( sc->xmit_busy ) { /* no TX -> no TX timeouts */
- if (sc->out_dog == 0) {
- log(LOG_ERR, "sr%d: Transmit failure.. no clock?\n",
- sc->unit);
- s = splimp();
- srwatchdog(sc);
-#if 0
- sr_down(sc);
- sr_up(sc);
-#endif
- splx(s);
- sc->inlast = sc->out_deficit = 0;
- } else {
- sc->out_dog--;
- }
- }
- sr_modemck(sc); /* update the DCD status */
- sc->handle = timeout(ngsr_watchdog_frame, sc, hz);
-}
-
-/***********************************************************************
- * This section contains the methods for the Netgraph interface
- ***********************************************************************/
-/*
- * It is not possible or allowable to create a node of this type.
- * If the hardware exists, it will already have created it.
- */
-static int
-ngsr_constructor(node_p node)
-{
- return (EINVAL);
-}
-
-/*
- * give our ok for a hook to be added...
- * If we are not running this should kick the device into life.
- * The hook's private info points to our stash of info about that
- * channel.
- */
-static int
-ngsr_newhook(node_p node, hook_p hook, const char *name)
-{
- struct sr_softc * sc = NG_NODE_PRIVATE(node);
-
- /*
- * check if it's our friend the debug hook
- */
- if (strcmp(name, NG_SR_HOOK_DEBUG) == 0) {
- NG_HOOK_SET_PRIVATE(hook, NULL); /* paranoid */
- sc->debug_hook = hook;
- return (0);
- }
-
- /*
- * Check for raw mode hook.
- */
- if (strcmp(name, NG_SR_HOOK_RAW) != 0) {
- return (EINVAL);
- }
- NG_HOOK_SET_PRIVATE(hook, sc);
- sc->hook = hook;
- sc->datahooks++;
- sr_up(sc);
- return (0);
-}
-
-/*
- * incoming messages.
- * Just respond to the generic TEXT_STATUS message
- */
-static int
-ngsr_rcvmsg(node_p node, item_p item, hook_p lasthook)
-{
- struct sr_softc * sc;
- struct ng_mesg *resp = NULL;
- int error = 0;
- struct ng_mesg *msg;
-
- NGI_GET_MSG(item,msg);
- sc = NG_NODE_PRIVATE(node);
- switch (msg->header.typecookie) {
- case NG_SR_COOKIE:
- error = EINVAL;
- break;
- case NGM_GENERIC_COOKIE:
- switch(msg->header.cmd) {
- case NGM_TEXT_STATUS: {
- char *arg;
- int pos = 0;
-
- int resplen = sizeof(struct ng_mesg) + 512;
- NG_MKRESPONSE(resp, msg, resplen, M_NOWAIT);
- if (resp == NULL) {
- error = ENOMEM;
- break;
- }
- arg = (resp)->data;
- pos = sprintf(arg, "%ld bytes in, %ld bytes out\n"
- "highest rate seen: %ld B/S in, %ld B/S out\n",
- sc->inbytes, sc->outbytes,
- sc->inrate, sc->outrate);
- pos += sprintf(arg + pos,
- "%ld output errors\n",
- sc->oerrors);
- pos += sprintf(arg + pos,
- "ierrors = %ld, %ld, %ld, %ld, %ld, %ld\n",
- sc->ierrors[0],
- sc->ierrors[1],
- sc->ierrors[2],
- sc->ierrors[3],
- sc->ierrors[4],
- sc->ierrors[5]);
-
- resp->header.arglen = pos + 1;
- break;
- }
- default:
- error = EINVAL;
- break;
- }
- break;
- default:
- error = EINVAL;
- break;
- }
- /* Take care of synchronous response, if any */
- NG_RESPOND_MSG(error, node, item, resp);
- NG_FREE_MSG(msg);
- return (error);
-}
-
-/*
- * get data from another node and transmit it to the correct channel
- */
-static int
-ngsr_rcvdata(hook_p hook, item_p item)
-{
- int s;
- int error = 0;
- struct sr_softc * sc = NG_NODE_PRIVATE(NG_HOOK_NODE(hook));
- struct ifqueue *xmitq_p;
- struct mbuf *m;
- meta_p meta;
-
- NGI_GET_M(item, m);
- NGI_GET_META(item, meta);
- NG_FREE_ITEM(item);
- /*
- * data doesn't come in from just anywhere (e.g control hook)
- */
- if ( NG_HOOK_PRIVATE(hook) == NULL) {
- error = ENETDOWN;
- goto bad;
- }
-
- /*
- * Now queue the data for when it can be sent
- */
- if (meta && meta->priority > 0) {
- xmitq_p = (&sc->xmitq_hipri);
- } else {
- xmitq_p = (&sc->xmitq);
- }
- s = splimp();
- IF_LOCK(xmitq_p);
- if (_IF_QFULL(xmitq_p)) {
- _IF_DROP(xmitq_p);
- IF_UNLOCK(xmitq_p);
- splx(s);
- error = ENOBUFS;
- goto bad;
- }
- _IF_ENQUEUE(xmitq_p, m);
- IF_UNLOCK(xmitq_p);
- srstart(sc);
- splx(s);
- return (0);
-
-bad:
- /*
- * It was an error case.
- * check if we need to free the mbuf, and then return the error
- */
- NG_FREE_M(m);
- NG_FREE_META(meta);
- return (error);
-}
-
-/*
- * do local shutdown processing..
- * this node will refuse to go away, unless the hardware says to..
- * don't unref the node, or remove our name. just clear our links up.
- */
-static int
-ngsr_shutdown(node_p node)
-{
- struct sr_softc * sc = NG_NODE_PRIVATE(node);
-
- sr_down(sc);
- NG_NODE_UNREF(node);
-/* XXX should drain queues! */
- if (ng_make_node_common(&typestruct, &sc->node) != 0)
- return (0);
- sprintf(sc->nodename, "%s%d", NG_SR_NODE_TYPE, sc->unit);
- if (ng_name_node(sc->node, sc->nodename)) {
- printf("node naming failed\n");
- sc->node = NULL;
- NG_NODE_UNREF(sc->node); /* drop it again */
- return (0);
- }
- NG_NODE_SET_PRIVATE(sc->node, sc);
- callout_handle_init(&sc->handle); /* should kill timeout */
- sc->running = 0;
- return (0);
-}
-
-/* already linked */
-static int
-ngsr_connect(hook_p hook)
-{
- /* probably not at splnet, force outward queueing */
- NG_HOOK_FORCE_QUEUE(NG_HOOK_PEER(hook));
- /* be really amiable and just say "YUP that's OK by me! " */
- return (0);
-}
-
-/*
- * notify on hook disconnection (destruction)
- *
- * Invalidate the private data associated with this dlci.
- * For this type, removal of the last link resets tries to destroy the node.
- * As the device still exists, the shutdown method will not actually
- * destroy the node, but reset the device and leave it 'fresh' :)
- *
- * The node removal code will remove all references except that owned by the
- * driver.
- */
-static int
-ngsr_disconnect(hook_p hook)
-{
- struct sr_softc * sc = NG_NODE_PRIVATE(NG_HOOK_NODE(hook));
- int s;
- /*
- * If it's the data hook, then free resources etc.
- */
- if (NG_HOOK_PRIVATE(hook)) {
- s = splimp();
- sc->datahooks--;
- if (sc->datahooks == 0)
- sr_down(sc);
- splx(s);
- } else {
- sc->debug_hook = NULL;
- }
- return (0);
-}
-
-/*
- * called during bootup
- * or LKM loading to put this type into the list of known modules
- */
-static void
-ngsr_init(void *ignored)
-{
- if (ng_newtype(&typestruct))
- printf("ngsr install failed\n");
- ngsr_done_init = 1;
-}
-#endif /* NETGRAPH */
-
-/*
- ********************************* END ************************************
- */
diff --git a/sys/i386/isa/if_sr.h b/sys/i386/isa/if_sr.h
deleted file mode 100644
index a55a6d3..0000000
--- a/sys/i386/isa/if_sr.h
+++ /dev/null
@@ -1,51 +0,0 @@
-/*
- * if_sr.h
- *
- * Copyright (C) 1997-1999 Whistle Communications Inc.
- * All rights reserved.
- *
- * Subject to the following obligations and disclaimer of warranty, use and
- * redistribution of this software, in source or object code forms, with or
- * without modifications are expressly permitted by Whistle Communications;
- * provided, however, that:
- * 1. Any and all reproductions of the source or object code must include the
- * copyright notice above and the following disclaimer of warranties; and
- * 2. No rights are granted, in any manner or form, to use Whistle
- * Communications, Inc. trademarks, including the mark "WHISTLE
- * COMMUNICATIONS" on advertising, endorsements, or otherwise except as
- * such appears in the above copyright notice or in the software.
- *
- * THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
- * TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
- * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE,
- * INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
- * WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY
- * REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS
- * SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
- * IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES
- * RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
- * WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
- * PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER 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 WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
- * OF SUCH DAMAGE.
-
- * $FreeBSD$
- */
-
-#ifndef _I386_ISA_IF_SR_H_
-#define _I386_ISA_IF_SR_H_
-
-/* Node type name and type cookie */
-#define NG_SR_NODE_TYPE "sync_sr"
-#define NG_SR_COOKIE 860552148
-
-/* Netgraph hooks */
-#define NG_SR_HOOK_DEBUG "debug"
-#define NG_SR_HOOK_RAW "rawdata"
-
-#endif /* _I386_ISA_IF_SR_H_ */
-
diff --git a/sys/i386/isa/if_srregs.h b/sys/i386/isa/if_srregs.h
deleted file mode 100644
index 64d9ba1..0000000
--- a/sys/i386/isa/if_srregs.h
+++ /dev/null
@@ -1,123 +0,0 @@
-/*
- * Copyright (c) 1995 John Hay.
- * Copyright (c) 1996 SDL Communications, Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the author nor the names of any co-contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
- *
- * $FreeBSD$
- */
-#ifndef _IF_SRREGS_H_
-#define _IF_SRREGS_H_
-
-#define NCHAN 2 /* A HD64570 chip have 2 channels */
-
-#define SR_BUF_SIZ 512
-#define SR_TX_BLOCKS 2 /* Sepperate sets of tx buffers */
-
-#define SR_CRD_N2 1
-#define SR_CRD_N2PCI 2
-
-/*
- * RISCom/N2 ISA card.
- */
-#define SRC_IO_SIZ 0x10 /* Actually a lie. It uses a lot more. */
-#define SRC_WIN_SIZ 0x00004000
-#define SRC_WIN_MSK (SRC_WIN_SIZ - 1)
-#define SRC_WIN_SHFT 14
-
-#define SR_FLAGS_NCHAN_MSK 0x0000000F
-#define SR_FLAGS_0_CLK_MSK 0x00000030
-#define SR_FLAGS_0_EXT_CLK 0x00000000 /* External RX clock shared by TX */
-#define SR_FLAGS_0_EXT_SEP_CLK 0x00000010 /* Sepperate external clocks */
-#define SR_FLAGS_0_INT_CLK 0x00000020 /* Internal clock */
-#define SR_FLAGS_1_CLK_MSK 0x000000C0
-#define SR_FLAGS_1_EXT_CLK 0x00000000 /* External RX clock shared by TX */
-#define SR_FLAGS_1_EXT_SEP_CLK 0x00000040 /* Sepperate external clocks */
-#define SR_FLAGS_1_INT_CLK 0x00000080 /* Internal clock */
-
-#define SR_FLAGS_CLK_SHFT 4
-#define SR_FLAGS_CLK_CHAN_SHFT 2
-#define SR_FLAGS_EXT_CLK 0x00000000 /* External RX clock shared by TX */
-#define SR_FLAGS_EXT_SEP_CLK 0x00000001 /* Sepperate external clocks */
-#define SR_FLAGS_INT_CLK 0x00000002 /* Internal clock */
-
-#define SR_PCR 0x00 /* RW, PC Control Register */
-#define SR_BAR 0x02 /* RW, Base Address Register */
-#define SR_PSR 0x04 /* RW, Page Scan Register */
-#define SR_MCR 0x06 /* RW, Modem Control Register */
-
-#define SR_PCR_SCARUN 0x01 /* !Reset */
-#define SR_PCR_EN_VPM 0x02 /* Running above 1M */
-#define SR_PCR_MEM_WIN 0x04 /* Open memory window */
-#define SR_PCR_ISA16 0x08 /* 16 bit ISA mode */
-#define SR_PCR_16M_SEL 0xF0 /* A20-A23 Addresses */
-
-#define SR_PSR_PG_SEL 0x1F /* Page 0 - 31 select */
-#define SR_PG_MSK 0x1F
-#define SR_PSR_WIN_SIZ 0x60 /* Window size select */
-#define SR_PSR_WIN_16K 0x00
-#define SR_PSR_WIN_32K 0x20
-#define SR_PSR_WIN_64K 0x40
-#define SR_PSR_WIN_128K 0x60
-#define SR_PSR_EN_SCA_DMA 0x80 /* Enable the SCA DMA */
-
-#define SR_MCR_DTR0 0x01 /* Deactivate DTR0 */
-#define SR_MCR_DTR1 0x02 /* Deactivate DTR1 */
-#define SR_MCR_DSR0 0x04 /* DSR0 Status */
-#define SR_MCR_DSR1 0x08 /* DSR1 Status */
-#define SR_MCR_TE0 0x10 /* Enable RS422 TXD */
-#define SR_MCR_TE1 0x20 /* Enable RS422 TXD */
-#define SR_MCR_ETC0 0x40 /* Enable Ext Clock out */
-#define SR_MCR_ETC1 0x80 /* Enable Ext Clock out */
-
-/*
- * RISCom/N2 PCI card.
- */
-#define SR_FECR 0x0200 /* Front End Control Register */
-#define SR_FECR_ETC0 0x0001 /* Enable Ext Clock out */
-#define SR_FECR_ETC1 0x0002 /* Enable Ext Clock out */
-#define SR_FECR_TE0 0x0004 /* Enable RS422 TXD */
-#define SR_FECR_TE1 0x0008 /* Enable RS422 TXD */
-#define SR_FECR_GPO0 0x0010 /* General Purpose Output */
-#define SR_FECR_GPO1 0x0020 /* General Purpose Output */
-#define SR_FECR_DTR0 0x0040 /* 0 for active, 1 for inactive */
-#define SR_FECR_DTR1 0x0080 /* 0 for active, 1 for inactive */
-#define SR_FECR_DSR0 0x0100 /* DSR0 Status */
-#define SR_FECR_ID0 0x0E00 /* ID of channel 0 */
-#define SR_FECR_DSR1 0x1000 /* DSR1 Status */
-#define SR_FECR_ID1 0xE000 /* ID of channel 1 */
-
-#define SR_FE_ID_V35 0x00 /* V.35 Interface */
-#define SR_FE_ID_RS232 0x01 /* RS232 Interface */
-#define SR_FE_ID_TEST 0x02 /* Test Board */
-#define SR_FE_ID_RS422 0x03 /* RS422 Interface */
-#define SR_FE_ID_HSSI 0x05 /* HSSI Interface */
-#define SR_FE_ID_X21 0x06 /* X.21 Interface */
-#define SR_FE_ID_NONE 0x07 /* No card present */
-#define SR_FE_ID0_SHFT 9
-#define SR_FE_ID1_SHFT 13
-
-#endif /* _IF_SRREGS_H_ */
diff --git a/sys/pci/if_ar_p.c b/sys/pci/if_ar_p.c
deleted file mode 100644
index ad2bfa0..0000000
--- a/sys/pci/if_ar_p.c
+++ /dev/null
@@ -1,170 +0,0 @@
-/*
- * Copyright (c) 1999 - 2001 John Hay.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the author nor the names of any co-contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
- *
- * $FreeBSD$
- */
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/kernel.h>
-#include <sys/malloc.h>
-#include <sys/bus.h>
-#include <machine/bus.h>
-#include <machine/resource.h>
-#include <machine/bus_pio.h>
-#include <machine/bus_memio.h>
-#include <sys/rman.h>
-
-#include <pci/pcireg.h>
-#include <pci/pcivar.h>
-
-#include <i386/isa/ic/hd64570.h>
-#include <i386/isa/if_arregs.h>
-
-#ifdef TRACE
-#define TRC(x) x
-#else
-#define TRC(x)
-#endif
-
-#define TRCL(x) x
-
-static int ar_pci_probe(device_t);
-static int ar_pci_attach(device_t);
-
-static device_method_t ar_pci_methods[] = {
- /* Device interface */
- DEVMETHOD(device_probe, ar_pci_probe),
- DEVMETHOD(device_attach, ar_pci_attach),
- DEVMETHOD(device_detach, ar_detach),
- { 0, 0 }
-};
-
-static driver_t ar_pci_driver = {
- "ar",
- ar_pci_methods,
- sizeof(struct ar_hardc),
-};
-
-DRIVER_MODULE(if_ar, pci, ar_pci_driver, ar_devclass, 0, 0);
-
-static int
-ar_pci_probe(device_t device)
-{
- u_int32_t type = pci_get_devid(device);
-
- switch(type) {
- case 0x5012114f:
- device_set_desc(device, "Digi SYNC/570i-PCI 2 port");
- return (0);
- break;
- case 0x5010114f:
- printf("Digi SYNC/570i-PCI 2 port (mapped below 1M)\n");
- printf("Please change the jumper to select linear mode.\n");
- break;
- case 0x5013114f:
- device_set_desc(device, "Digi SYNC/570i-PCI 4 port");
- return (0);
- break;
- case 0x5011114f:
- printf("Digi SYNC/570i-PCI 4 port (mapped below 1M)\n");
- printf("Please change the jumper to select linear mode.\n");
- break;
- default:
- break;
- }
- return (ENXIO);
-}
-
-static int
-ar_pci_attach(device_t device)
-{
- int error;
- u_int i, tmp;
- u_char *inten;
- struct ar_hardc *hc;
-
- hc = (struct ar_hardc *)device_get_softc(device);
- bzero(hc, sizeof(struct ar_hardc));
-
- error = ar_allocate_plx_memory(device, 0x10, 1);
- if(error)
- goto errexit;
-
- error = ar_allocate_memory(device, 0x18, 1);
- if(error)
- goto errexit;
-
- error = ar_allocate_irq(device, 0, 1);
- if(error)
- goto errexit;
-
- hc->plx_mem = rman_get_virtual(hc->res_plx_memory);
- hc->mem_start = rman_get_virtual(hc->res_memory);
-
- hc->cunit = device_get_unit(device);
- hc->sca[0] = (sca_regs *)(hc->mem_start + AR_PCI_SCA_1_OFFSET);
- hc->sca[1] = (sca_regs *)(hc->mem_start + AR_PCI_SCA_2_OFFSET);
- hc->iobase = 0;
- hc->orbase = (u_char *)(hc->mem_start + AR_PCI_ORBASE_OFFSET);
-
- tmp = hc->orbase[AR_BMI * 4];
- hc->bustype = tmp & AR_BUS_MSK;
- hc->memsize = (tmp & AR_MEM_MSK) >> AR_MEM_SHFT;
- hc->memsize = 1 << hc->memsize;
- hc->memsize <<= 16;
- hc->interface[0] = (tmp & AR_IFACE_MSK);
- tmp = hc->orbase[AR_REV * 4];
- hc->revision = tmp & AR_REV_MSK;
- hc->winsize = (1 << ((tmp & AR_WSIZ_MSK) >> AR_WSIZ_SHFT)) * 16 * 1024;
- hc->mem_end = (caddr_t)(hc->mem_start + hc->winsize);
- hc->winmsk = hc->winsize - 1;
- hc->numports = hc->orbase[AR_PNUM * 4];
- hc->handshake = hc->orbase[AR_HNDSH * 4];
-
- for(i = 1; i < hc->numports; i++)
- hc->interface[i] = hc->interface[0];
-
- TRC(printf("arp%d: bus %x, rev %d, memstart %p, winsize %d, "
- "winmsk %x, interface %x\n",
- unit, hc->bustype, hc->revision, hc->mem_start, hc->winsize,
- hc->winmsk, hc->interface[0]));
-
- ar_attach(device);
-
- /* Magic to enable the card to generate interrupts. */
- inten = (u_char *)hc->plx_mem;
- inten[0x69] = 0x09;
-
- return (0);
-
-errexit:
- ar_deallocate_resources(device);
- return (ENXIO);
-}
-
diff --git a/sys/pci/if_sr_p.c b/sys/pci/if_sr_p.c
deleted file mode 100644
index b8ac2cc..0000000
--- a/sys/pci/if_sr_p.c
+++ /dev/null
@@ -1,138 +0,0 @@
-/*
- * Copyright (c) 1996 John Hay.
- * Copyright (c) 1996 SDL Communications, Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the author nor the names of any co-contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
- *
- * $FreeBSD$
- */
-
-#ifdef COMPILING_LINT
-#warning "The sr pci driver is broken and is not compiled with LINT"
-#else
-
-#include "sr.h"
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/kernel.h>
-#include <sys/malloc.h>
-
-#include <pci/pcivar.h>
-
-#ifndef COMPAT_OLDPCI
-#error "The sr device requires the old pci compatibility shims"
-#endif
-
-#ifndef BUGGY
-#define BUGGY 0
-#endif
-
-/*
- * The must match with the real functions in if_sr.c
- */
-extern void *srattach_pci(int unit,
- vm_offset_t plx_vaddr,
- vm_offset_t sca_vaddr);
-extern void srintr_hc(void *hc);
-
-static const char *sr_pci_probe(pcici_t tag, pcidi_t type);
-static void sr_pci_attach(pcici_t config_id, int unit);
-
-static u_long src_count = NSR;
-
-static struct pci_device sr_pci_driver =
-{
- "src",
- sr_pci_probe,
- sr_pci_attach,
- &src_count,
- NULL
-};
-
-COMPAT_PCI_DRIVER (sr_pci, sr_pci_driver);
-
-static const char *
-sr_pci_probe(pcici_t tag, pcidi_t type)
-{
- switch(type) {
- case 0x556812aa:
- return ("RISCom/N2pci");
- break;
- case 0x55684778:
- case 0x55684877:
- /*
- * XXX This can probably be removed sometime.
- */
- return ("RISCom/N2pci (old id)");
- break;
- default:
- break;
- }
- return (0);
-}
-
-static void
-sr_pci_attach(pcici_t config_id, int unit)
-{
- void *hc;
-#if BUGGY > 0
- u_int *fecr;
-#endif
- vm_offset_t plx_vaddr, plx_paddr, sca_vaddr, sca_paddr;
-
-#if BUGGY > 0
- printf("srp: ID %x\n", pci_conf_read(config_id, 0));
- printf("srp: BADR0 %x\n", pci_conf_read(config_id, 0x10));
- printf("srp: BADR1 %x\n", pci_conf_read(config_id, 0x18));
-#endif
- if(!pci_map_mem(config_id, 0x10, &plx_vaddr, &plx_paddr)) {
- printf("srp: map failed.\n");
- return;
- }
-#if BUGGY > 0
- printf("srp: vaddr %x, paddr %x\n", plx_vaddr, plx_paddr);
-#endif
- if(!pci_map_mem(config_id, 0x18, &sca_vaddr, &sca_paddr)) {
- printf("srp: map failed.\n");
- return;
- }
-#if BUGGY > 0
- printf("srp: vaddr %x, paddr %x\n", sca_vaddr, sca_paddr);
- fecr = (u_int *)(sca_vaddr + 0x200);
- printf("srp: FECR %x\n", *fecr);
-#endif
-
- hc = srattach_pci(unit, plx_vaddr, sca_vaddr);
- if(!hc)
- return;
-
- if(!pci_map_int(config_id, srintr_hc, (void *)hc, &net_imask)) {
- free(hc, M_DEVBUF);
- return;
- }
-}
-#endif
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