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Diffstat (limited to 'sys/arch/sparc/dev/qec.c')
| -rw-r--r-- | sys/arch/sparc/dev/qec.c | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/sys/arch/sparc/dev/qec.c b/sys/arch/sparc/dev/qec.c new file mode 100644 index 00000000000..9022bba7303 --- /dev/null +++ b/sys/arch/sparc/dev/qec.c @@ -0,0 +1,139 @@ +/* $OpenBSD: qec.c,v 1.1 1998/07/04 01:27:55 deraadt Exp $ */ + +/* + * Copyright (c) 1998 Theo de Raadt. 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. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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/types.h> +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/kernel.h> +#include <sys/errno.h> +#include <sys/ioctl.h> +#include <sys/device.h> +#include <sys/malloc.h> +#include <sys/buf.h> +#include <sys/proc.h> +#include <sys/user.h> + +#include <sparc/autoconf.h> +#include <sparc/cpu.h> + +#include <sparc/dev/sbusvar.h> +#include <sparc/dev/dmareg.h> +#include <sparc/dev/qecvar.h> + +int qecprint __P((void *, const char *)); +void qecattach __P((struct device *, struct device *, void *)); + +struct cfattach qec_ca = { + sizeof(struct qec_softc), matchbyname, qecattach +}; + +struct cfdriver qec_cd = { + NULL, "qec", DV_DULL +}; + +int +qecprint(aux, name) + void *aux; + const char *name; +{ + register struct confargs *ca = aux; + + if (name) + printf("%s at %s", ca->ca_ra.ra_name, name); + printf(" slot 0x%x offset 0x%x", ca->ca_slot, ca->ca_offset); + return (UNCONF); +} + +/* + * Attach all the sub-devices we can find + */ +void +qecattach(parent, self, aux) + struct device *parent, *self; + void *aux; +{ +#if defined(SUN4C) || defined(SUN4M) + register struct confargs *ca = aux; + struct qec_softc *sc = (void *)self; + int node; + struct confargs oca; + char *name; + int sbusburst; + + if (ca->ca_ra.ra_vaddr == NULL || ca->ca_ra.ra_nvaddrs == 0) + ca->ca_ra.ra_vaddr = + mapiodev(ca->ca_ra.ra_reg, 0, ca->ca_ra.ra_len); + + /* + * This device's "register space" is just a buffer where the + * Lance ring-buffers can be stored. Note the buffer's location + * and size, so the sub-drivers can pick them up. + */ + sc->sc_buffer = (caddr_t)ca->ca_ra.ra_vaddr; + sc->sc_bufsiz = ca->ca_ra.ra_len; + + /* + * Get transfer burst size from PROM + */ + sbusburst = ((struct sbus_softc *)parent)->sc_burst; + if (sbusburst == 0) + sbusburst = SBUS_BURST_32 - 1; /* 1->16 */ + + sc->sc_burst = getpropint(ca->ca_ra.ra_node, "burst-sizes", -1); + if (sc->sc_burst == -1) + /* take SBus burst sizes */ + sc->sc_burst = sbusburst; + + /* Clamp at parent's burst sizes */ + sc->sc_burst &= sbusburst; + + printf(": %dK memory\n", sc->sc_bufsiz / 1024); + + node = sc->sc_node = ca->ca_ra.ra_node; + + if (ca->ca_bustype == BUS_SBUS) + sbus_establish(&sc->sc_sd, &sc->sc_dev); + + /* Propagate bootpath */ + if (ca->ca_ra.ra_bp != NULL) + oca.ca_ra.ra_bp = ca->ca_ra.ra_bp + 1; + else + oca.ca_ra.ra_bp = NULL; + + /* search through children */ + for (node = firstchild(node); node; node = nextsibling(node)) { + name = getpropstring(node, "name"); + if (!romprop(&oca.ca_ra, name, node)) + continue; + + sbus_translate(parent, &oca); + oca.ca_bustype = BUS_SBUS; + (void) config_found(&sc->sc_dev, (void *)&oca, qecprint); + } +#endif /* SUN4C || SUN4M */ +} |