/* $NetBSD: osiop_gsc.c,v 1.2 2022/09/29 06:39:58 skrll Exp $ */ /* * Copyright (c) 2001 Matt Fredette. 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 AUTHORS ``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 AUTHORS 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. */ /*- * Copyright (c) 2001, 2002 Izumi Tsutsui. 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 AUTHORS ``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 AUTHORS 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. */ /* $OpenBSD: siop_gsc.c,v 1.1 1998/11/04 17:01:35 mickey Exp $ */ /* * Copyright (c) 1998 Michael Shalayeff * 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/cdefs.h> __KERNEL_RCSID(0, "$NetBSD: osiop_gsc.c,v 1.2 2022/09/29 06:39:58 skrll Exp $"); #include <sys/param.h> #include <sys/systm.h> #include <sys/device.h> #include <sys/buf.h> #include <dev/scsipi/scsi_all.h> #include <dev/scsipi/scsipi_all.h> #include <dev/scsipi/scsiconf.h> #include <machine/cpu.h> #include <machine/intr.h> #include <machine/iomod.h> #include <machine/autoconf.h> #include <sys/bus.h> #include <dev/ic/osiopreg.h> #include <dev/ic/osiopvar.h> #include <hppa/dev/cpudevs.h> #include <hppa/gsc/gscbusvar.h> #include <hppa/hppa/machdep.h> #define OSIOP_GSC_RESET 0x0000 #define OSIOP_GSC_OFFSET 0x0100 int osiop_gsc_match(device_t, cfdata_t, void *); void osiop_gsc_attach(device_t, device_t, void *); int osiop_gsc_intr(void *); CFATTACH_DECL_NEW(osiop_gsc, sizeof(struct osiop_softc), osiop_gsc_match, osiop_gsc_attach, NULL, NULL); int osiop_gsc_match(device_t parent, cfdata_t cf, void *aux) { struct gsc_attach_args *ga = aux; bus_space_handle_t ioh; int rv = 1; if (ga->ga_type.iodc_type != HPPA_TYPE_FIO || (ga->ga_type.iodc_sv_model != HPPA_FIO_GSCSI)) return 0; if (bus_space_map(ga->ga_iot, ga->ga_hpa, OSIOP_GSC_OFFSET + OSIOP_NREGS, 0, &ioh)) return 0; bus_space_unmap(ga->ga_iot, ioh, OSIOP_GSC_OFFSET + OSIOP_NREGS); return rv; } void osiop_gsc_attach(device_t parent, device_t self, void *aux) { struct osiop_softc *sc = device_private(self); struct gsc_attach_args *ga = aux; bus_space_handle_t ioh; sc->sc_dev = self; sc->sc_bst = ga->ga_iot; sc->sc_dmat = ga->ga_dmatag; if (bus_space_map(sc->sc_bst, ga->ga_hpa, OSIOP_GSC_OFFSET + OSIOP_NREGS, 0, &ioh)) { aprint_error(": couldn't map I/O ports\n"); return; } if (bus_space_subregion(sc->sc_bst, ioh, OSIOP_GSC_OFFSET, OSIOP_NREGS, &sc->sc_reg)) { aprint_error(": couldn't get chip ports\n"); return; } sc->sc_clock_freq = ga->ga_ca.ca_pir.filler2[14] / 1000000; if (!sc->sc_clock_freq) sc->sc_clock_freq = 50; sc->sc_ctest7 = 0; /* | OSIOP_CTEST7_TT1 */ sc->sc_dcntl = OSIOP_DCNTL_EA; sc->sc_flags = 0; sc->sc_id = ga->ga_scsi_target; /* * Reset the SCSI subsystem. */ bus_space_write_1(sc->sc_bst, ioh, OSIOP_GSC_RESET, 0); DELAY(1000); /* * Call common attachment */ #ifdef OSIOP_DEBUG { extern int osiop_debug; osiop_debug = -1; } #endif /* OSIOP_DEBUG */ osiop_attach(sc); (void)hppa_intr_establish(IPL_BIO, osiop_gsc_intr, sc, ga->ga_ir, ga->ga_irq); } /* * interrupt handler */ int osiop_gsc_intr(void *arg) { struct osiop_softc *sc = arg; uint8_t istat; /* This is potentially nasty, since the IRQ is level triggered... */ if (sc->sc_flags & OSIOP_INTSOFF) return (0); istat = osiop_read_1(sc, OSIOP_ISTAT); if ((istat & (OSIOP_ISTAT_SIP | OSIOP_ISTAT_DIP)) == 0) return (0); /* Save interrupt details for the back-end interrupt handler */ sc->sc_sstat0 = osiop_read_1(sc, OSIOP_SSTAT0); sc->sc_istat = istat; /* * Per page 4-18 of the LSI 53C710 Technical Manual, * "insert a delay equivalent to 12 BCLK periods between * the reads [of DSTAT and SSTAT0] to ensure that the * interrupts clear properly." */ DELAY(100); sc->sc_dstat = osiop_read_1(sc, OSIOP_DSTAT); /* Deal with the interrupt */ osiop_intr(sc); /* Blink the LED. */ hppa_led_blink(HPPA_LED_DISK); return (1); }
