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authorcvs2git <rtems-devel@rtems.org>2009-04-23 00:37:08 +0000
committercvs2git <rtems-devel@rtems.org>2009-04-23 00:37:08 +0000
commit3f43db5361c6869c470af596679de2f02c3befe1 (patch)
treec4d7b028770989e35fe0261ac65ad47c73021fb4 /bsd_eth_drivers/if_le/if_le_lebuffer.c
parenta97f93433011baea37857b07ca45b07b1eea04e5 (diff)
downloadlibbsdport-vers_20090214.tar.bz2
This commit was manufactured by cvs2svn to create tag 'vers_20090214'.vers_20090214
Sprout from base 2009-04-23 00:37:07 UTC Till Straumann <strauman@slac.stanford.edu> ' - importing original version I had sent Joel on 20090214' Delete: bootstrap bsd_eth_drivers/Makefile bsd_eth_drivers/if_em/LICENSE bsd_eth_drivers/if_em/Makefile bsd_eth_drivers/if_em/README.rtems bsd_eth_drivers/if_em/freebsd_cvs_status bsd_eth_drivers/if_le/Makefile bsd_eth_drivers/if_le/README.rtems bsd_eth_drivers/if_le/am7990.c bsd_eth_drivers/if_le/if_le_cbus.c bsd_eth_drivers/if_le/if_le_isa.c bsd_eth_drivers/if_le/if_le_lebuffer.c bsd_eth_drivers/if_le/if_le_ledma.c bsd_eth_drivers/if_le/lebuffer_sbus.c bsd_eth_drivers/if_pcn/Makefile bsd_eth_drivers/if_pcn/README.rtems bsd_eth_drivers/if_re/Makefile.am bsd_eth_drivers/if_re/if_re.c bsd_eth_drivers/if_re/if_rlreg.h bsd_eth_drivers/libbsdport/Makefile bsd_eth_drivers/libbsdport/modini.c m4/acinclude.m4 m4/multilib-fix.m4 m4/multilib-installdir.m4 m4/rtems-bsp-postlink.m4 m4/rtems-isml.m4 m4/rtems-ismultibsp.m4 m4/rtems-multilib.m4
Diffstat (limited to 'bsd_eth_drivers/if_le/if_le_lebuffer.c')
-rw-r--r--bsd_eth_drivers/if_le/if_le_lebuffer.c408
1 files changed, 0 insertions, 408 deletions
diff --git a/bsd_eth_drivers/if_le/if_le_lebuffer.c b/bsd_eth_drivers/if_le/if_le_lebuffer.c
deleted file mode 100644
index 5ad8d31..0000000
--- a/bsd_eth_drivers/if_le/if_le_lebuffer.c
+++ /dev/null
@@ -1,408 +0,0 @@
-/*-
- * Copyright (c) 2006 Marius Strobl <marius@FreeBSD.org>
- * 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.
- *
- * 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.
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD: src/sys/dev/le/if_le_lebuffer.c,v 1.2 2007/02/23 12:18:45 piso Exp $");
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/bus.h>
-#include <sys/endian.h>
-#include <sys/kernel.h>
-#include <sys/lock.h>
-#include <sys/module.h>
-#include <sys/mutex.h>
-#include <sys/resource.h>
-#include <sys/rman.h>
-#include <sys/socket.h>
-
-#include <dev/ofw/ofw_bus.h>
-
-#include <machine/bus.h>
-#include <machine/ofw_machdep.h>
-#include <machine/resource.h>
-
-#include <net/ethernet.h>
-#include <net/if.h>
-#include <net/if_media.h>
-
-#include <dev/le/lancereg.h>
-#include <dev/le/lancevar.h>
-#include <dev/le/am7990reg.h>
-#include <dev/le/am7990var.h>
-
-/*
- * LANCE registers
- */
-#define LEREG1_RDP 0 /* Register Data port */
-#define LEREG1_RAP 2 /* Register Address port */
-
-struct le_lebuffer_softc {
- struct am7990_softc sc_am7990; /* glue to MI code */
-
- int sc_brid;
- struct resource *sc_bres;
- bus_space_tag_t sc_buft;
- bus_space_handle_t sc_bufh;
-
- int sc_rrid;
- struct resource *sc_rres;
- bus_space_tag_t sc_regt;
- bus_space_handle_t sc_regh;
-
- int sc_irid;
- struct resource *sc_ires;
- void *sc_ih;
-};
-
-static devclass_t le_lebuffer_devclass;
-
-static device_probe_t le_lebuffer_probe;
-static device_attach_t le_lebuffer_attach;
-static device_detach_t le_lebuffer_detach;
-static device_resume_t le_buffer_resume;
-static device_suspend_t le_buffer_suspend;
-
-static device_method_t le_lebuffer_methods[] = {
- /* Device interface */
- DEVMETHOD(device_probe, le_lebuffer_probe),
- DEVMETHOD(device_attach, le_lebuffer_attach),
- DEVMETHOD(device_detach, le_lebuffer_detach),
- /* We can just use the suspend method here. */
- DEVMETHOD(device_shutdown, le_buffer_suspend),
- DEVMETHOD(device_suspend, le_buffer_suspend),
- DEVMETHOD(device_resume, le_buffer_resume),
-
- { 0, 0 }
-};
-
-DEFINE_CLASS_0(le, le_lebuffer_driver, le_lebuffer_methods,
- sizeof(struct le_lebuffer_softc));
-DRIVER_MODULE(le, lebuffer, le_lebuffer_driver, le_lebuffer_devclass, 0, 0);
-MODULE_DEPEND(le, ether, 1, 1, 1);
-
-/*
- * Media types supported
- */
-static const int le_lebuffer_media[] = {
- IFM_MAKEWORD(IFM_ETHER, IFM_10_T, 0, 0)
-};
-#define NLEMEDIA \
- (sizeof(le_lebuffer_media) / sizeof(le_lebuffer_media[0]))
-
-static void le_lebuffer_wrcsr(struct lance_softc *, uint16_t, uint16_t);
-static uint16_t le_lebuffer_rdcsr(struct lance_softc *, uint16_t);
-static void le_lebuffer_copytodesc(struct lance_softc *, void *, int, int);
-static void le_lebuffer_copyfromdesc(struct lance_softc *, void *, int, int);
-static void le_lebuffer_copytobuf(struct lance_softc *, void *, int, int);
-static void le_lebuffer_copyfrombuf(struct lance_softc *, void *, int, int);
-static void le_lebuffer_zerobuf(struct lance_softc *, int, int);
-
-static void
-le_lebuffer_wrcsr(struct lance_softc *sc, uint16_t port, uint16_t val)
-{
- struct le_lebuffer_softc *lesc = (struct le_lebuffer_softc *)sc;
-
- bus_space_write_2(lesc->sc_regt, lesc->sc_regh, LEREG1_RAP, port);
- bus_space_barrier(lesc->sc_regt, lesc->sc_regh, LEREG1_RAP, 2,
- BUS_SPACE_BARRIER_WRITE);
- bus_space_write_2(lesc->sc_regt, lesc->sc_regh, LEREG1_RDP, val);
-}
-
-static uint16_t
-le_lebuffer_rdcsr(struct lance_softc *sc, uint16_t port)
-{
- struct le_lebuffer_softc *lesc = (struct le_lebuffer_softc *)sc;
-
- bus_space_write_2(lesc->sc_regt, lesc->sc_regh, LEREG1_RAP, port);
- bus_space_barrier(lesc->sc_regt, lesc->sc_regh, LEREG1_RAP, 2,
- BUS_SPACE_BARRIER_WRITE);
- return (bus_space_read_2(lesc->sc_regt, lesc->sc_regh, LEREG1_RDP));
-}
-
-/*
- * It turns out that using bus_space(9) to access the buffers and the
- * descriptors yields way more throughput than accessing them via the
- * KVA returned by rman_get_virtual(9). The descriptor rings can be
- * accessed using 8-bit up to 64-bit operations while the buffers can
- * be only accessed using 8-bit and 16-bit operations.
- * NB: For whatever reason setting LE_C3_BSWP has no effect with at
- * least the 501-2981 (although their 'busmaster-regval' property
- * indicates to set LE_C3_BSWP also for these cards), so we need
- * to manually byte swap access to the buffers, i.e. the accesses
- * going through the RX/TX FIFOs.
- */
-
-static void
-le_lebuffer_copytodesc(struct lance_softc *sc, void *fromv, int off, int len)
-{
- struct le_lebuffer_softc *lesc = (struct le_lebuffer_softc *)sc;
- caddr_t from = fromv;
-
- for (; len >= 8; len -= 8, off += 8, from += 8)
- bus_space_write_8(lesc->sc_buft, lesc->sc_bufh, off,
- be64dec(from));
- for (; len >= 4; len -= 4, off += 4, from += 4)
- bus_space_write_4(lesc->sc_buft, lesc->sc_bufh, off,
- be32dec(from));
- for (; len >= 2; len -= 2, off += 2, from += 2)
- bus_space_write_2(lesc->sc_buft, lesc->sc_bufh, off,
- be16dec(from));
- if (len == 1)
- bus_space_write_1(lesc->sc_buft, lesc->sc_bufh, off,
- *from);
-}
-
-static void
-le_lebuffer_copyfromdesc(struct lance_softc *sc, void *tov, int off, int len)
-{
- struct le_lebuffer_softc *lesc = (struct le_lebuffer_softc *)sc;
- caddr_t to = tov;
-
- for (; len >= 8; len -= 8, off += 8, to += 8)
- be64enc(to,
- bus_space_read_8(lesc->sc_buft, lesc->sc_bufh, off));
- for (; len >= 4; len -= 4, off += 4, to += 4)
- be32enc(to,
- bus_space_read_4(lesc->sc_buft, lesc->sc_bufh, off));
- for (; len >= 2; len -= 2, off += 2, to += 2)
- be16enc(to,
- bus_space_read_2(lesc->sc_buft, lesc->sc_bufh, off));
- if (len == 1)
- *to =
- bus_space_read_1(lesc->sc_buft, lesc->sc_bufh, off);
-}
-
-static void
-le_lebuffer_copytobuf(struct lance_softc *sc, void *fromv, int off, int len)
-{
- struct le_lebuffer_softc *lesc = (struct le_lebuffer_softc *)sc;
- caddr_t from = fromv;
-
- for (; len >= 2; len -= 2, off += 2, from += 2)
- bus_space_write_2(lesc->sc_buft, lesc->sc_bufh, off,
- le16dec(from));
- if (len == 1)
- bus_space_write_1(lesc->sc_buft, lesc->sc_bufh, off + 1,
- *from);
-}
-
-static void
-le_lebuffer_copyfrombuf(struct lance_softc *sc, void *tov, int off, int len)
-{
- struct le_lebuffer_softc *lesc = (struct le_lebuffer_softc *)sc;
- caddr_t to = tov;
-
- for (; len >= 2; len -= 2, off += 2, to += 2)
- le16enc(to,
- bus_space_read_2(lesc->sc_buft, lesc->sc_bufh, off));
- if (len == 1)
- *to =
- bus_space_read_1(lesc->sc_buft, lesc->sc_bufh, off + 1);
-}
-
-static void
-le_lebuffer_zerobuf(struct lance_softc *sc, int off, int len)
-{
- struct le_lebuffer_softc *lesc = (struct le_lebuffer_softc *)sc;
-
- for (; len >= 2; len -= 2, off += 2)
- bus_space_write_2(lesc->sc_buft, lesc->sc_bufh, off, 0);
- if (len == 1)
- bus_space_write_1(lesc->sc_buft, lesc->sc_bufh, off + 1, 0);
-}
-
-static int
-le_lebuffer_probe(device_t dev)
-{
-
- if (strcmp(ofw_bus_get_name(dev), "le") == 0) {
- device_set_desc(dev, "LANCE Ethernet");
- return (BUS_PROBE_DEFAULT);
- }
- return (ENXIO);
-}
-
-static int
-le_lebuffer_attach(device_t dev)
-{
- struct le_lebuffer_softc *lesc;
- struct lance_softc *sc;
- int error;
-
- lesc = device_get_softc(dev);
- sc = &lesc->sc_am7990.lsc;
-
- LE_LOCK_INIT(sc, device_get_nameunit(dev));
-
- /*
- * The "register space" of the parent is just a buffer where the
- * the LANCE descriptor rings and the RX/TX buffers can be stored.
- */
- lesc->sc_brid = 0;
- lesc->sc_bres = bus_alloc_resource_any(device_get_parent(dev),
- SYS_RES_MEMORY, &lesc->sc_brid, RF_ACTIVE);
- if (lesc->sc_bres == NULL) {
- device_printf(dev, "cannot allocate LANCE buffer\n");
- error = ENXIO;
- goto fail_mtx;
- }
- lesc->sc_buft = rman_get_bustag(lesc->sc_bres);
- lesc->sc_bufh = rman_get_bushandle(lesc->sc_bres);
-
- /* Allocate LANCE registers. */
- lesc->sc_rrid = 0;
- lesc->sc_rres = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
- &lesc->sc_rrid, RF_ACTIVE);
- if (lesc->sc_rres == NULL) {
- device_printf(dev, "cannot allocate LANCE registers\n");
- error = ENXIO;
- goto fail_bres;
- }
- lesc->sc_regt = rman_get_bustag(lesc->sc_rres);
- lesc->sc_regh = rman_get_bushandle(lesc->sc_rres);
-
- /* Allocate LANCE interrupt. */
- lesc->sc_irid = 0;
- if ((lesc->sc_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ,
- &lesc->sc_irid, RF_SHAREABLE | RF_ACTIVE)) == NULL) {
- device_printf(dev, "cannot allocate interrupt\n");
- error = ENXIO;
- goto fail_rres;
- }
-
- /*
- * LANCE view is offset by buffer location.
- * Note that we don't use sc->sc_mem.
- */
- sc->sc_addr = 0;
- sc->sc_memsize = rman_get_size(lesc->sc_bres);
- sc->sc_flags = 0;
-
- /* That old black magic... */
- if (OF_getprop(ofw_bus_get_node(dev), "busmaster-regval",
- &sc->sc_conf3, sizeof(sc->sc_conf3)) == -1)
- sc->sc_conf3 = LE_C3_ACON | LE_C3_BCON;
- /*
- * Make sure LE_C3_BSWP is cleared so that for cards where
- * that flag actually works le_lebuffer_copy{from,to}buf()
- * don't fail...
- */
- sc->sc_conf3 &= ~LE_C3_BSWP;
-
- OF_getetheraddr(dev, sc->sc_enaddr);
-
- sc->sc_copytodesc = le_lebuffer_copytodesc;
- sc->sc_copyfromdesc = le_lebuffer_copyfromdesc;
- sc->sc_copytobuf = le_lebuffer_copytobuf;
- sc->sc_copyfrombuf = le_lebuffer_copyfrombuf;
- sc->sc_zerobuf = le_lebuffer_zerobuf;
-
- sc->sc_rdcsr = le_lebuffer_rdcsr;
- sc->sc_wrcsr = le_lebuffer_wrcsr;
- sc->sc_hwreset = NULL;
- sc->sc_hwinit = NULL;
- sc->sc_hwintr = NULL;
- sc->sc_nocarrier = NULL;
- sc->sc_mediachange = NULL;
- sc->sc_mediastatus = NULL;
- sc->sc_supmedia = le_lebuffer_media;
- sc->sc_nsupmedia = NLEMEDIA;
- sc->sc_defaultmedia = le_lebuffer_media[0];
-
- error = am7990_config(&lesc->sc_am7990, device_get_name(dev),
- device_get_unit(dev));
- if (error != 0) {
- device_printf(dev, "cannot attach Am7990\n");
- goto fail_ires;
- }
-
- error = bus_setup_intr(dev, lesc->sc_ires, INTR_TYPE_NET | INTR_MPSAFE,
- NULL, am7990_intr, sc, &lesc->sc_ih);
- if (error != 0) {
- device_printf(dev, "cannot set up interrupt\n");
- goto fail_am7990;
- }
-
- return (0);
-
- fail_am7990:
- am7990_detach(&lesc->sc_am7990);
- fail_ires:
- bus_release_resource(dev, SYS_RES_IRQ, lesc->sc_irid, lesc->sc_ires);
- fail_rres:
- bus_release_resource(dev, SYS_RES_MEMORY, lesc->sc_rrid, lesc->sc_rres);
- fail_bres:
- bus_release_resource(device_get_parent(dev), SYS_RES_MEMORY,
- lesc->sc_brid, lesc->sc_bres);
- fail_mtx:
- LE_LOCK_DESTROY(sc);
- return (error);
-}
-
-static int
-le_lebuffer_detach(device_t dev)
-{
- struct le_lebuffer_softc *lesc;
- struct lance_softc *sc;
-
- lesc = device_get_softc(dev);
- sc = &lesc->sc_am7990.lsc;
-
- bus_teardown_intr(dev, lesc->sc_ires, lesc->sc_ih);
- am7990_detach(&lesc->sc_am7990);
- bus_release_resource(dev, SYS_RES_IRQ, lesc->sc_irid, lesc->sc_ires);
- bus_release_resource(dev, SYS_RES_MEMORY, lesc->sc_rrid, lesc->sc_rres);
- bus_release_resource(device_get_parent(dev), SYS_RES_MEMORY,
- lesc->sc_brid, lesc->sc_bres);
- LE_LOCK_DESTROY(sc);
-
- return (0);
-}
-
-static int
-le_buffer_suspend(device_t dev)
-{
- struct le_lebuffer_softc *lesc;
-
- lesc = device_get_softc(dev);
-
- lance_suspend(&lesc->sc_am7990.lsc);
-
- return (0);
-}
-
-static int
-le_buffer_resume(device_t dev)
-{
- struct le_lebuffer_softc *lesc;
-
- lesc = device_get_softc(dev);
-
- lance_resume(&lesc->sc_am7990.lsc);
-
- return (0);
-}