From a8bf95d0249565f4210ccab5c13232d501ce0c2d Mon Sep 17 00:00:00 2001 From: Till Straumann Date: Wed, 22 Apr 2009 22:06:58 +0000 Subject: - importing updated version from SLAC as of 20090422 --- bsd_eth_drivers/if_le/if_le_cbus.c | 451 +++++++++++++++++++++++++++++++++++++ 1 file changed, 451 insertions(+) create mode 100644 bsd_eth_drivers/if_le/if_le_cbus.c (limited to 'bsd_eth_drivers/if_le/if_le_cbus.c') diff --git a/bsd_eth_drivers/if_le/if_le_cbus.c b/bsd_eth_drivers/if_le/if_le_cbus.c new file mode 100644 index 0000000..40d0e19 --- /dev/null +++ b/bsd_eth_drivers/if_le/if_le_cbus.c @@ -0,0 +1,451 @@ +/*- + * Copyright (c) 1994-2000 + * Paul Richards. All rights reserved. + * + * PC-98 port by Chiharu Shibata & FreeBSD(98) porting team. + * + * 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, + * verbatim and that no modifications are made prior to this + * point in the file. + * 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. The name Paul Richards may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY PAUL RICHARDS ``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 PAUL RICHARDS 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. + * + * from: FreeBSD: src/sys/dev/lnc/if_lnc_cbus.c,v 1.12 2005/11/12 19:14:21 + */ + +#include +__FBSDID("$FreeBSD: src/sys/dev/le/if_le_cbus.c,v 1.5 2007/02/23 12:18:45 piso Exp $"); + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#include +#include + +#include + +#include +#include +#include + +#define LE_CBUS_MEMSIZE (16*1024) +#define CNET98S_IOSIZE 32 +#define CNET98S_RDP 0x10 +#define CNET98S_RAP 0x12 +#define CNET98S_RESET 0x14 +#define CNET98S_BDP 0x16 + +struct le_cbus_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_pdmat; + bus_dma_tag_t sc_dmat; + bus_dmamap_t sc_dmam; +}; + +static device_probe_t le_cbus_probe; +static device_attach_t le_cbus_attach; +static device_detach_t le_cbus_detach; +static device_resume_t le_cbus_resume; +static device_suspend_t le_cbus_suspend; + +static device_method_t le_cbus_methods[] = { + /* Device interface */ + DEVMETHOD(device_probe, le_cbus_probe), + DEVMETHOD(device_attach, le_cbus_attach), + DEVMETHOD(device_detach, le_cbus_detach), + /* We can just use the suspend method here. */ + DEVMETHOD(device_shutdown, le_cbus_suspend), + DEVMETHOD(device_suspend, le_cbus_suspend), + DEVMETHOD(device_resume, le_cbus_resume), + + { 0, 0 } +}; + +DEFINE_CLASS_0(le, le_cbus_driver, le_cbus_methods, sizeof(struct le_cbus_softc)); +DRIVER_MODULE(le, isa, le_cbus_driver, le_devclass, 0, 0); +MODULE_DEPEND(le, ether, 1, 1, 1); + +static bus_addr_t le_ioaddr_cnet98s[CNET98S_IOSIZE] = { + 0x000, 0x001, 0x002, 0x003, 0x004, 0x005, 0x006, 0x007, + 0x008, 0x009, 0x00a, 0x00b, 0x00c, 0x00d, 0x00e, 0x00f, + 0x400, 0x401, 0x402, 0x403, 0x404, 0x405, 0x406, 0x407, + 0x408, 0x409, 0x40a, 0x40b, 0x40c, 0x40d, 0x40e, 0x40f, +}; + +static void le_cbus_wrbcr(struct lance_softc *, uint16_t, uint16_t); +#ifdef LEDEBUG +static uint16_t le_cbus_rdbcr(struct lance_softc *, uint16_t); +#endif +static void le_cbus_wrcsr(struct lance_softc *, uint16_t, uint16_t); +static uint16_t le_cbus_rdcsr(struct lance_softc *, uint16_t); +static void le_cbus_hwreset(struct lance_softc *); +static bus_dmamap_callback_t le_cbus_dma_callback; + +static void +le_cbus_wrbcr(struct lance_softc *sc, uint16_t port, uint16_t val) +{ + struct le_cbus_softc *lesc = (struct le_cbus_softc *)sc; + + bus_space_write_2(lesc->sc_regt, lesc->sc_regh, CNET98S_RAP, port); + bus_space_barrier(lesc->sc_regt, lesc->sc_regh, CNET98S_RAP, 2, + BUS_SPACE_BARRIER_WRITE); + bus_space_write_2(lesc->sc_regt, lesc->sc_regh, CNET98S_BDP, val); +} + +#ifdef LEDEBUG +static uint16_t +le_cbus_rdbcr(struct lance_softc *sc, uint16_t port) +{ + struct le_cbus_softc *lesc = (struct le_cbus_softc *)sc; + + bus_space_write_2(lesc->sc_regt, lesc->sc_regh, CNET98S_RAP, port); + bus_space_barrier(lesc->sc_regt, lesc->sc_regh, CNET98S_RAP, 2, + BUS_SPACE_BARRIER_WRITE); + return (bus_space_read_2(lesc->sc_regt, lesc->sc_regh, CNET98S_BDP)); +} +#endif + +static void +le_cbus_wrcsr(struct lance_softc *sc, uint16_t port, uint16_t val) +{ + struct le_cbus_softc *lesc = (struct le_cbus_softc *)sc; + + bus_space_write_2(lesc->sc_regt, lesc->sc_regh, CNET98S_RAP, port); + bus_space_barrier(lesc->sc_regt, lesc->sc_regh, CNET98S_RAP, 2, + BUS_SPACE_BARRIER_WRITE); + bus_space_write_2(lesc->sc_regt, lesc->sc_regh, CNET98S_RDP, val); +} + +static uint16_t +le_cbus_rdcsr(struct lance_softc *sc, uint16_t port) +{ + struct le_cbus_softc *lesc = (struct le_cbus_softc *)sc; + + bus_space_write_2(lesc->sc_regt, lesc->sc_regh, CNET98S_RAP, port); + bus_space_barrier(lesc->sc_regt, lesc->sc_regh, CNET98S_RAP, 2, + BUS_SPACE_BARRIER_WRITE); + return (bus_space_read_2(lesc->sc_regt, lesc->sc_regh, CNET98S_RDP)); +} + +static void +le_cbus_hwreset(struct lance_softc *sc) +{ + struct le_cbus_softc *lesc = (struct le_cbus_softc *)sc; + + /* + * NB: These are Contec C-NET(98)S only. + */ + + /* Reset the chip. */ + bus_space_write_2(lesc->sc_regt, lesc->sc_regh, CNET98S_RESET, + bus_space_read_2(lesc->sc_regt, lesc->sc_regh, CNET98S_RESET)); + DELAY(500); + + /* ISA bus configuration */ + /* ISACSR0 - set Master Mode Read Active time to 300ns. */ + le_cbus_wrbcr(sc, LE_BCR0, 0x0006); + /* ISACSR1 - set Master Mode Write Active time to 300ns. */ + le_cbus_wrbcr(sc, LE_BCR1, 0x0006); +#ifdef LEDEBUG + device_printf(dev, "ISACSR2=0x%x\n", le_cbus_rdbcr(sc, LE_BCR2)); +#endif + /* ISACSR5 - LED1 */ + le_cbus_wrbcr(sc, LE_BCR5, LE_B4_PSE | LE_B4_XMTE); + /* ISACSR6 - LED2 */ + le_cbus_wrbcr(sc, LE_BCR6, LE_B4_PSE | LE_B4_RCVE); + /* ISACSR7 - LED3 */ + le_cbus_wrbcr(sc, LE_BCR7, LE_B4_PSE | LE_B4_COLE); +} + +static void +le_cbus_dma_callback(void *xsc, bus_dma_segment_t *segs, int nsegs, int error) +{ + struct lance_softc *sc = (struct lance_softc *)xsc; + + if (error != 0) + return; + KASSERT(nsegs == 1, ("%s: bad DMA segment count", __func__)); + sc->sc_addr = segs[0].ds_addr; +} + +static int +le_cbus_probe(device_t dev) +{ + struct le_cbus_softc *lesc; + struct lance_softc *sc; + int error; + + /* + * Skip PnP devices as some wedge when trying to probe them as + * C-NET(98)S. + */ + if (isa_get_vendorid(dev)) + return (ENXIO); + + lesc = device_get_softc(dev); + sc = &lesc->sc_am7990.lsc; + + lesc->sc_rrid = 0; + lesc->sc_rres = isa_alloc_resourcev(dev, SYS_RES_IOPORT, &lesc->sc_rrid, + le_ioaddr_cnet98s, CNET98S_IOSIZE, RF_ACTIVE); + if (lesc->sc_rres == NULL) + return (ENXIO); + isa_load_resourcev(lesc->sc_rres, le_ioaddr_cnet98s, CNET98S_IOSIZE); + lesc->sc_regt = rman_get_bustag(lesc->sc_rres); + lesc->sc_regh = rman_get_bushandle(lesc->sc_rres); + + /* Reset the chip. */ + bus_space_write_2(lesc->sc_regt, lesc->sc_regh, CNET98S_RESET, + bus_space_read_2(lesc->sc_regt, lesc->sc_regh, CNET98S_RESET)); + DELAY(500); + + /* Stop the chip and put it in a known state. */ + le_cbus_wrcsr(sc, LE_CSR0, LE_C0_STOP); + DELAY(100); + if (le_cbus_rdcsr(sc, LE_CSR0) != LE_C0_STOP) { + error = ENXIO; + goto fail; + } + le_cbus_wrcsr(sc, LE_CSR3, 0); + device_set_desc(dev, "C-NET(98)S"); + error = BUS_PROBE_DEFAULT; + + fail: + bus_release_resource(dev, SYS_RES_IOPORT, lesc->sc_rrid, lesc->sc_rres); + return (error); +} + +static int +le_cbus_attach(device_t dev) +{ + struct le_cbus_softc *lesc; + struct lance_softc *sc; + int error, i; + + lesc = device_get_softc(dev); + sc = &lesc->sc_am7990.lsc; + + LE_LOCK_INIT(sc, device_get_nameunit(dev)); + + lesc->sc_rrid = 0; + lesc->sc_rres = isa_alloc_resourcev(dev, SYS_RES_IOPORT, &lesc->sc_rrid, + le_ioaddr_cnet98s, CNET98S_IOSIZE, RF_ACTIVE); + if (lesc->sc_rres == NULL) { + device_printf(dev, "cannot allocate registers\n"); + error = ENXIO; + goto fail_mtx; + } + isa_load_resourcev(lesc->sc_rres, le_ioaddr_cnet98s, CNET98S_IOSIZE); + 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; + } + + error = bus_dma_tag_create( + bus_get_dma_tag(dev), /* parent */ + 1, 0, /* alignment, boundary */ + BUS_SPACE_MAXADDR_24BIT, /* lowaddr */ + BUS_SPACE_MAXADDR, /* highaddr */ + NULL, NULL, /* filter, filterarg */ + BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ + 0, /* nsegments */ + BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ + 0, /* flags */ + NULL, NULL, /* lockfunc, lockarg */ + &lesc->sc_pdmat); + if (error != 0) { + device_printf(dev, "cannot allocate parent DMA tag\n"); + goto fail_ires; + } + + sc->sc_memsize = LE_CBUS_MEMSIZE; + /* + * For Am79C90, Am79C961 and Am79C961A the init block must be 2-byte + * aligned and the ring descriptors must be 8-byte aligned. + */ + error = bus_dma_tag_create( + lesc->sc_pdmat, /* parent */ + 8, 0, /* alignment, boundary */ + BUS_SPACE_MAXADDR_24BIT, /* 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_pdtag; + } + + 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; + } + + sc->sc_addr = 0; + error = bus_dmamap_load(lesc->sc_dmat, lesc->sc_dmam, sc->sc_mem, + sc->sc_memsize, le_cbus_dma_callback, sc, 0); + if (error != 0 || sc->sc_addr == 0) { + device_printf(dev, "cannot load DMA buffer map\n"); + goto fail_dmem; + } + + sc->sc_flags = 0; + sc->sc_conf3 = 0; + + /* + * Extract the physical MAC address from the ROM. + */ + for (i = 0; i < sizeof(sc->sc_enaddr); i++) + sc->sc_enaddr[i] = bus_space_read_1(lesc->sc_regt, + lesc->sc_regh, i * 2); + + 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_cbus_rdcsr; + sc->sc_wrcsr = le_cbus_wrcsr; + sc->sc_hwreset = le_cbus_hwreset; + sc->sc_hwinit = NULL; + sc->sc_hwintr = NULL; + sc->sc_nocarrier = NULL; + sc->sc_mediachange = NULL; + sc->sc_mediastatus = NULL; + sc->sc_supmedia = NULL; + + 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_pdtag: + bus_dma_tag_destroy(lesc->sc_pdmat); + fail_ires: + bus_release_resource(dev, SYS_RES_IRQ, lesc->sc_irid, lesc->sc_ires); + fail_rres: + bus_release_resource(dev, SYS_RES_IOPORT, lesc->sc_rrid, lesc->sc_rres); + fail_mtx: + LE_LOCK_DESTROY(sc); + return (error); +} + +static int +le_cbus_detach(device_t dev) +{ + struct le_cbus_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_dma_tag_destroy(lesc->sc_pdmat); + bus_release_resource(dev, SYS_RES_IRQ, lesc->sc_irid, lesc->sc_ires); + bus_release_resource(dev, SYS_RES_IOPORT, lesc->sc_rrid, lesc->sc_rres); + LE_LOCK_DESTROY(sc); + + return (0); +} + +static int +le_cbus_suspend(device_t dev) +{ + struct le_cbus_softc *lesc; + + lesc = device_get_softc(dev); + + lance_suspend(&lesc->sc_am7990.lsc); + + return (0); +} + +static int +le_cbus_resume(device_t dev) +{ + struct le_cbus_softc *lesc; + + lesc = device_get_softc(dev); + + lance_resume(&lesc->sc_am7990.lsc); + + return (0); +} -- cgit v1.2.3