diff options
Diffstat (limited to 'bsd_eth_drivers/if_le/if_le_ledma.c')
| -rw-r--r-- | bsd_eth_drivers/if_le/if_le_ledma.c | 490 |
1 files changed, 0 insertions, 490 deletions
diff --git a/bsd_eth_drivers/if_le/if_le_ledma.c b/bsd_eth_drivers/if_le/if_le_ledma.c deleted file mode 100644 index 248b8a0..0000000 --- a/bsd_eth_drivers/if_le/if_le_ledma.c +++ /dev/null @@ -1,490 +0,0 @@ -/* $NetBSD: if_le_ledma.c,v 1.26 2005/12/11 12:23:44 christos Exp $ */ - -/*- - * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc. - * All rights reserved. - * - * This code is derived from software contributed to The NetBSD Foundation - * by Charles M. Hannum; Jason R. Thorpe of the Numerical Aerospace - * Simulation Facility, NASA Ames Research Center; Paul Kranenburg. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the NetBSD - * Foundation, Inc. and its contributors. - * 4. Neither the name of The NetBSD Foundation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS - * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED - * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS - * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD: src/sys/dev/le/if_le_ledma.c,v 1.4 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 <sparc64/sbus/lsi64854reg.h> -#include <sparc64/sbus/lsi64854var.h> - -#include <dev/le/lancereg.h> -#include <dev/le/lancevar.h> -#include <dev/le/am7990var.h> - -#define LEDMA_ALIGNMENT 8 /* ring desc. alignmet for NCR92C990 */ -#define LEDMA_BOUNDARY (16*1024*1024) /* must not cross 16MB boundary */ -#define LEDMA_MEMSIZE (16*1024) /* LANCE memory size */ -#define LEREG1_RDP 0 /* Register Data Port */ -#define LEREG1_RAP 2 /* Register Address Port */ - -struct le_dma_softc { - struct am7990_softc sc_am7990; /* glue to MI code */ - - 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; - - bus_dma_tag_t sc_dmat; - bus_dmamap_t sc_dmam; - bus_addr_t sc_laddr; /* LANCE DMA address */ - - struct lsi64854_softc *sc_dma; /* pointer to DMA engine */ -}; - -static device_probe_t le_dma_probe; -static device_attach_t le_dma_attach; -static device_detach_t le_dma_detach; -static device_resume_t le_dma_resume; -static device_suspend_t le_dma_suspend; - -static device_method_t le_dma_methods[] = { - /* Device interface */ - DEVMETHOD(device_probe, le_dma_probe), - DEVMETHOD(device_attach, le_dma_attach), - DEVMETHOD(device_detach, le_dma_detach), - /* We can just use the suspend method here. */ - DEVMETHOD(device_shutdown, le_dma_suspend), - DEVMETHOD(device_suspend, le_dma_suspend), - DEVMETHOD(device_resume, le_dma_resume), - - { 0, 0 } -}; - -DEFINE_CLASS_0(le, le_dma_driver, le_dma_methods, sizeof(struct le_dma_softc)); -DRIVER_MODULE(le, dma, le_dma_driver, le_devclass, 0, 0); -MODULE_DEPEND(le, ether, 1, 1, 1); - -/* - * Media types supported - */ -static const int le_dma_supmedia[] = { - IFM_MAKEWORD(IFM_ETHER, IFM_AUTO, 0, 0), - IFM_MAKEWORD(IFM_ETHER, IFM_10_T, 0, 0), - IFM_MAKEWORD(IFM_ETHER, IFM_10_5, 0, 0) -}; - -static void le_dma_wrcsr(struct lance_softc *, uint16_t, uint16_t); -static uint16_t le_dma_rdcsr(struct lance_softc *, uint16_t); -static void le_dma_setutp(struct lance_softc *); -static void le_dma_setaui(struct lance_softc *); -static int le_dma_supmediachange(struct lance_softc *); -static void le_dma_supmediastatus(struct lance_softc *, struct ifmediareq *); -static void le_dma_hwreset(struct lance_softc *); -static int le_dma_hwintr(struct lance_softc *); -static void le_dma_nocarrier(struct lance_softc *); -static bus_dmamap_callback_t le_dma_dma_callback; - -static void -le_dma_wrcsr(struct lance_softc *sc, uint16_t port, uint16_t val) -{ - struct le_dma_softc *lesc = (struct le_dma_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_dma_rdcsr(struct lance_softc *sc, uint16_t port) -{ - struct le_dma_softc *lesc = (struct le_dma_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)); -} - -static void -le_dma_setutp(struct lance_softc *sc) -{ - struct lsi64854_softc *dma = ((struct le_dma_softc *)sc)->sc_dma; - - L64854_SCSR(dma, L64854_GCSR(dma) | E_TP_AUI); - DELAY(20000); /* We must not touch the LANCE chip for 20ms. */ -} - -static void -le_dma_setaui(struct lance_softc *sc) -{ - struct lsi64854_softc *dma = ((struct le_dma_softc *)sc)->sc_dma; - - L64854_SCSR(dma, L64854_GCSR(dma) & ~E_TP_AUI); - DELAY(20000); /* We must not touch the LANCE chip for 20ms. */ -} - -static int -le_dma_supmediachange(struct lance_softc *sc) -{ - struct ifmedia *ifm = &sc->sc_media; - - if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER) - return (EINVAL); - - /* - * Switch to the selected media. If autoselect is set, we don't - * really have to do anything. We'll switch to the other media - * when we detect loss of carrier. - */ - switch (IFM_SUBTYPE(ifm->ifm_media)) { - case IFM_10_T: - le_dma_setutp(sc); - break; - - case IFM_10_5: - le_dma_setaui(sc); - break; - - case IFM_AUTO: - break; - - default: - return (EINVAL); - } - - return (0); -} - -static void -le_dma_supmediastatus(struct lance_softc *sc, struct ifmediareq *ifmr) -{ - struct lsi64854_softc *dma = ((struct le_dma_softc *)sc)->sc_dma; - - /* - * Notify the world which media we're currently using. - */ - if (L64854_GCSR(dma) & E_TP_AUI) - ifmr->ifm_active = IFM_MAKEWORD(IFM_ETHER, IFM_10_T, 0, 0); - else - ifmr->ifm_active = IFM_MAKEWORD(IFM_ETHER, IFM_10_5, 0, 0); -} - -static void -le_dma_hwreset(struct lance_softc *sc) -{ - struct le_dma_softc *lesc = (struct le_dma_softc *)sc; - struct lsi64854_softc *dma = lesc->sc_dma; - uint32_t aui_bit, csr; - - /* - * Reset DMA channel. - */ - csr = L64854_GCSR(dma); - aui_bit = csr & E_TP_AUI; - DMA_RESET(dma); - - /* Write bits 24-31 of Lance address. */ - bus_space_write_4(dma->sc_regt, dma->sc_regh, L64854_REG_ENBAR, - lesc->sc_laddr & 0xff000000); - - DMA_ENINTR(dma); - - /* - * Disable E-cache invalidates on chip writes. - * Retain previous cable selection bit. - */ - csr = L64854_GCSR(dma); - csr |= (E_DSBL_WR_INVAL | aui_bit); - L64854_SCSR(dma, csr); - DELAY(20000); /* We must not touch the LANCE chip for 20ms. */ -} - -static int -le_dma_hwintr(struct lance_softc *sc) -{ - struct le_dma_softc *lesc = (struct le_dma_softc *)sc; - struct lsi64854_softc *dma = lesc->sc_dma; - - return (DMA_INTR(dma)); -} - -static void -le_dma_nocarrier(struct lance_softc *sc) -{ - struct le_dma_softc *lesc = (struct le_dma_softc *)sc; - - /* - * Check if the user has requested a certain cable type, and - * if so, honor that request. - */ - - if (L64854_GCSR(lesc->sc_dma) & E_TP_AUI) { - switch (IFM_SUBTYPE(sc->sc_media.ifm_media)) { - case IFM_10_5: - case IFM_AUTO: - if_printf(sc->sc_ifp, "lost carrier on UTP port, " - "switching to AUI port\n"); - le_dma_setaui(sc); - } - } else { - switch (IFM_SUBTYPE(sc->sc_media.ifm_media)) { - case IFM_10_T: - case IFM_AUTO: - if_printf(sc->sc_ifp, "lost carrier on AUI port, " - "switching to UTP port\n"); - le_dma_setutp(sc); - } - } -} - -static void -le_dma_dma_callback(void *xsc, bus_dma_segment_t *segs, int nsegs, int error) -{ - struct le_dma_softc *lesc = (struct le_dma_softc *)xsc; - - if (error != 0) - return; - KASSERT(nsegs == 1, ("%s: bad DMA segment count", __func__)); - lesc->sc_laddr = segs[0].ds_addr; -} - -static int -le_dma_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_dma_attach(device_t dev) -{ - struct le_dma_softc *lesc; - struct lsi64854_softc *dma; - struct lance_softc *sc; - int error; - - lesc = device_get_softc(dev); - sc = &lesc->sc_am7990.lsc; - - LE_LOCK_INIT(sc, device_get_nameunit(dev)); - - /* - * Establish link to `ledma' device. - * XXX hackery. - */ - dma = (struct lsi64854_softc *)device_get_softc(device_get_parent(dev)); - lesc->sc_dma = dma; - lesc->sc_dma->sc_client = lesc; - - 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 registers\n"); - error = ENXIO; - goto fail_mtx; - } - lesc->sc_regt = rman_get_bustag(lesc->sc_rres); - lesc->sc_regh = rman_get_bushandle(lesc->sc_rres); - - 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; - } - - sc->sc_memsize = LEDMA_MEMSIZE; - error = bus_dma_tag_create( - dma->sc_parent_dmat, /* parent */ - LEDMA_ALIGNMENT, /* alignment */ - LEDMA_BOUNDARY, /* boundary */ - BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ - BUS_SPACE_MAXADDR, /* highaddr */ - NULL, NULL, /* filter, filterarg */ - sc->sc_memsize, /* maxsize */ - 1, /* nsegments */ - sc->sc_memsize, /* maxsegsize */ - 0, /* flags */ - NULL, NULL, /* lockfunc, lockarg */ - &lesc->sc_dmat); - if (error != 0) { - device_printf(dev, "cannot allocate buffer DMA tag\n"); - goto fail_ires; - } - - error = bus_dmamem_alloc(lesc->sc_dmat, (void **)&sc->sc_mem, - BUS_DMA_WAITOK | BUS_DMA_COHERENT, &lesc->sc_dmam); - if (error != 0) { - device_printf(dev, "cannot allocate DMA buffer memory\n"); - goto fail_dtag; - } - - lesc->sc_laddr = 0; - error = bus_dmamap_load(lesc->sc_dmat, lesc->sc_dmam, sc->sc_mem, - sc->sc_memsize, le_dma_dma_callback, lesc, 0); - if (error != 0 || lesc->sc_laddr == 0) { - device_printf(dev, "cannot load DMA buffer map\n"); - goto fail_dmem; - } - - sc->sc_addr = lesc->sc_laddr & 0xffffff; - sc->sc_flags = 0; - sc->sc_conf3 = LE_C3_BSWP | LE_C3_ACON | LE_C3_BCON; - - sc->sc_mediachange = le_dma_supmediachange; - sc->sc_mediastatus = le_dma_supmediastatus; - sc->sc_supmedia = le_dma_supmedia; - sc->sc_nsupmedia = sizeof(le_dma_supmedia) / sizeof(le_dma_supmedia[0]); - sc->sc_defaultmedia = le_dma_supmedia[0]; - - OF_getetheraddr(dev, sc->sc_enaddr); - - sc->sc_copytodesc = lance_copytobuf_contig; - sc->sc_copyfromdesc = lance_copyfrombuf_contig; - sc->sc_copytobuf = lance_copytobuf_contig; - sc->sc_copyfrombuf = lance_copyfrombuf_contig; - sc->sc_zerobuf = lance_zerobuf_contig; - - sc->sc_rdcsr = le_dma_rdcsr; - sc->sc_wrcsr = le_dma_wrcsr; - sc->sc_hwreset = le_dma_hwreset; - sc->sc_hwintr = le_dma_hwintr; - sc->sc_nocarrier = le_dma_nocarrier; - - 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_dmap; - } - - 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_dmap: - bus_dmamap_unload(lesc->sc_dmat, lesc->sc_dmam); - fail_dmem: - bus_dmamem_free(lesc->sc_dmat, sc->sc_mem, lesc->sc_dmam); - fail_dtag: - bus_dma_tag_destroy(lesc->sc_dmat); - 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_mtx: - LE_LOCK_DESTROY(sc); - return (error); -} - -static int -le_dma_detach(device_t dev) -{ - struct le_dma_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_dmamap_unload(lesc->sc_dmat, lesc->sc_dmam); - bus_dmamem_free(lesc->sc_dmat, sc->sc_mem, lesc->sc_dmam); - bus_dma_tag_destroy(lesc->sc_dmat); - 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); - LE_LOCK_DESTROY(sc); - - return (0); -} - -static int -le_dma_suspend(device_t dev) -{ - struct le_dma_softc *lesc; - - lesc = device_get_softc(dev); - - lance_suspend(&lesc->sc_am7990.lsc); - - return (0); -} - -static int -le_dma_resume(device_t dev) -{ - struct le_dma_softc *lesc; - - lesc = device_get_softc(dev); - - lance_resume(&lesc->sc_am7990.lsc); - - return (0); -} |