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      1 /*	$NetBSD: oosiop_gsc.c,v 1.2 2022/09/29 06:39:58 skrll Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 2001 Matt Fredette.  All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. The name of the author may not be used to endorse or promote products
     15  *    derived from this software without specific prior written permission.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
     18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     20  * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
     21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 /*-
     30  * Copyright (c) 2001,2002 Izumi Tsutsui.  All rights reserved.
     31  *
     32  * Redistribution and use in source and binary forms, with or without
     33  * modification, are permitted provided that the following conditions
     34  * are met:
     35  * 1. Redistributions of source code must retain the above copyright
     36  *    notice, this list of conditions and the following disclaimer.
     37  * 2. Redistributions in binary form must reproduce the above copyright
     38  *    notice, this list of conditions and the following disclaimer in the
     39  *    documentation and/or other materials provided with the distribution.
     40  *
     41  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
     42  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     43  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     44  * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
     45  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     46  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     47  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     48  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     49  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     50  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     51  */
     52 
     53 /*	$OpenBSD: siop_gsc.c,v 1.1 1998/11/04 17:01:35 mickey Exp $	*/
     54 
     55 /*
     56  * Copyright (c) 1998 Michael Shalayeff
     57  * All rights reserved.
     58  *
     59  * Redistribution and use in source and binary forms, with or without
     60  * modification, are permitted provided that the following conditions
     61  * are met:
     62  * 1. Redistributions of source code must retain the above copyright
     63  *    notice, this list of conditions and the following disclaimer.
     64  * 2. Redistributions in binary form must reproduce the above copyright
     65  *    notice, this list of conditions and the following disclaimer in the
     66  *    documentation and/or other materials provided with the distribution.
     67  * 3. The name of the author may not be used to endorse or promote products
     68  *    derived from this software without specific prior written permission.
     69  *
     70  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     71  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     72  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     73  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     74  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     75  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     76  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     77  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     78  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     79  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     80  */
     81 
     82 #include <sys/cdefs.h>
     83 __KERNEL_RCSID(0, "$NetBSD: oosiop_gsc.c,v 1.2 2022/09/29 06:39:58 skrll Exp $");
     84 
     85 #include <sys/param.h>
     86 #include <sys/systm.h>
     87 #include <sys/device.h>
     88 #include <sys/buf.h>
     89 
     90 #include <dev/scsipi/scsi_all.h>
     91 #include <dev/scsipi/scsipi_all.h>
     92 #include <dev/scsipi/scsiconf.h>
     93 
     94 #include <machine/cpu.h>
     95 #include <machine/intr.h>
     96 #include <machine/iomod.h>
     97 #include <machine/autoconf.h>
     98 #include <sys/bus.h>
     99 
    100 #include <dev/ic/oosiopreg.h>
    101 #include <dev/ic/oosiopvar.h>
    102 
    103 #include <hppa/dev/cpudevs.h>
    104 #include <hppa/gsc/gscbusvar.h>
    105 #include <hppa/hppa/machdep.h>
    106 
    107 #define OOSIOP_GSC_RESET	0x0000
    108 #define OOSIOP_GSC_OFFSET	0x0100
    109 
    110 int oosiop_gsc_match(device_t, cfdata_t, void *);
    111 void oosiop_gsc_attach(device_t, device_t, void *);
    112 int oosiop_gsc_intr(void *);
    113 
    114 CFATTACH_DECL_NEW(oosiop_gsc, sizeof(struct oosiop_softc),
    115     oosiop_gsc_match, oosiop_gsc_attach, NULL, NULL);
    116 
    117 int
    118 oosiop_gsc_match(device_t parent, cfdata_t cf, void *aux)
    119 {
    120 	struct gsc_attach_args *ga = aux;
    121 	bus_space_handle_t ioh;
    122 	int rv = 1;
    123 
    124 	if (ga->ga_type.iodc_type != HPPA_TYPE_FIO ||
    125 	    ga->ga_type.iodc_sv_model != HPPA_FIO_SCSI)
    126 		return 0;
    127 
    128 	if (bus_space_map(ga->ga_iot, ga->ga_hpa,
    129 	    OOSIOP_GSC_OFFSET + OOSIOP_NREGS, 0, &ioh))
    130 		return 0;
    131 
    132 
    133 	bus_space_unmap(ga->ga_iot, ioh, OOSIOP_GSC_OFFSET + OOSIOP_NREGS);
    134 	return rv;
    135 }
    136 
    137 void
    138 oosiop_gsc_attach(device_t parent, device_t self, void *aux)
    139 {
    140 	struct oosiop_softc *sc = device_private(self);
    141 	struct gsc_attach_args *ga = aux;
    142 	bus_space_handle_t ioh;
    143 
    144 	sc->sc_dev = self;
    145 	sc->sc_bst = ga->ga_iot;
    146 	sc->sc_dmat = ga->ga_dmatag;
    147 	if (bus_space_map(sc->sc_bst, ga->ga_hpa,
    148 	    OOSIOP_GSC_OFFSET + OOSIOP_NREGS, 0, &ioh)) {
    149 		aprint_error(": couldn't map I/O ports\n");
    150 		return;
    151 	}
    152 	if (bus_space_subregion(sc->sc_bst, ioh,
    153 	    OOSIOP_GSC_OFFSET, OOSIOP_NREGS, &sc->sc_bsh)) {
    154 		aprint_error(": couldn't get chip ports\n");
    155 		return;
    156 	}
    157 
    158 	sc->sc_freq = ga->ga_ca.ca_pir.filler2[14];
    159 	if (sc->sc_freq == 0)
    160 		sc->sc_freq = 50000000;
    161 
    162 	sc->sc_chip = OOSIOP_700;
    163 	sc->sc_id = ga->ga_scsi_target;
    164 
    165 	/*
    166 	 * Reset SCSI subsystem.
    167 	 */
    168 	bus_space_write_1(sc->sc_bst, ioh, OOSIOP_GSC_RESET, 0);
    169 	DELAY(1000);
    170 
    171 	/*
    172 	 * Call common attachment
    173 	 */
    174 	oosiop_attach(sc);
    175 
    176 	(void)hppa_intr_establish(IPL_BIO, oosiop_gsc_intr, sc,
    177 	    ga->ga_ir, ga->ga_irq);
    178 }
    179 
    180 /*
    181  * interrupt handler
    182  */
    183 int
    184 oosiop_gsc_intr(void *arg)
    185 {
    186 	struct oosiop_softc *sc = arg;
    187 	int rv;
    188 
    189 	rv = oosiop_intr(sc);
    190 
    191 	/* Blink the LED. */
    192 	hppa_led_blink(HPPA_LED_DISK);
    193 
    194 	return rv;
    195 }
    196