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      1 /*	$NetBSD: hil_gsc.c,v 1.1 2014/02/24 07:23:43 skrll Exp $	*/
      2 /*	$OpenBSD: hil_gsc.c,v 1.5 2005/12/22 07:09:52 miod Exp $	*/
      3 /*
      4  * Copyright (c) 2003, Miodrag Vallat.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     18  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     19  * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
     20  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     21  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
     22  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
     24  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
     25  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  *
     28  */
     29 
     30 #include <sys/param.h>
     31 #include <sys/systm.h>
     32 #include <sys/device.h>
     33 #include <sys/cpu.h>
     34 #include <sys/bus.h>
     35 
     36 #include <machine/intr.h>
     37 #include <machine/iomod.h>
     38 #include <machine/autoconf.h>
     39 
     40 #include <hppa/dev/cpudevs.h>
     41 #include <hppa/gsc/gscbusvar.h>
     42 #include <hppa/hppa/machdep.h>
     43 
     44 #include <machine/hil_machdep.h>
     45 
     46 #include <dev/hil/hilvar.h>
     47 
     48 static int	hil_gsc_match(device_t, cfdata_t, void *);
     49 static void	hil_gsc_attach(device_t, device_t, void *);
     50 
     51 struct hil_gsc_softc {
     52 	struct hil_softc sc_hs;
     53 	int sc_hil_console;
     54 	void *sc_ih;
     55 };
     56 
     57 CFATTACH_DECL_NEW(hil_gsc, sizeof(struct hil_gsc_softc),
     58     hil_gsc_match, hil_gsc_attach, NULL, NULL);
     59 
     60 int
     61 hil_gsc_match(device_t parent, cfdata_t cf, void *aux)
     62 {
     63 	struct gsc_attach_args *ga = aux;
     64 
     65 	if (ga->ga_type.iodc_type != HPPA_TYPE_FIO ||
     66 	    ga->ga_type.iodc_sv_model != HPPA_FIO_HIL)
     67 		return 0;
     68 
     69 	return 1;
     70 }
     71 
     72 void
     73 hil_gsc_attach(device_t parent, device_t self, void *aux)
     74 {
     75 	struct hil_gsc_softc *gsc = device_private(self);
     76 	struct hil_softc *sc = &gsc->sc_hs;
     77 	struct gsc_attach_args *ga = aux;
     78 	int pagezero_cookie;
     79 
     80 	sc->sc_dev = self;
     81 	sc->sc_bst = ga->ga_iot;
     82 	if (bus_space_map(ga->ga_iot, ga->ga_hpa,
     83 	    HILMAPSIZE, 0, &sc->sc_bsh)) {
     84 		aprint_error(": couldn't map hil controller\n");
     85 		return;
     86 	}
     87 
     88 	pagezero_cookie = hppa_pagezero_map();
     89 	gsc->sc_hil_console = ga->ga_dp.dp_mod == PAGE0->mem_kbd.pz_dp.dp_mod &&
     90 	    memcmp(ga->ga_dp.dp_bc, PAGE0->mem_kbd.pz_dp.dp_bc, 6) == 0;
     91 	hppa_pagezero_unmap(pagezero_cookie);
     92 
     93 	hil_attach(sc, &gsc->sc_hil_console);
     94 
     95 	gsc->sc_ih = hppa_intr_establish(IPL_TTY, hil_intr, sc,
     96 	    ga->ga_ir, ga->ga_irq);
     97 
     98 	config_interrupts(self, hil_attach_deferred);
     99 }
    100