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      1 /* $NetBSD: vr4181ip.c,v 1.4 2012/10/27 17:17:55 chs Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 1999, 2002
      5  *         Shin Takemura and PocketBSD Project. 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  * 3. Neither the name of the project nor the names of its contributors
     16  *    may be used to endorse or promote products derived from this software
     17  *    without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29  * SUCH DAMAGE.
     30  *
     31  */
     32 
     33 #include <sys/cdefs.h>
     34 __KERNEL_RCSID(0, "$NetBSD: vr4181ip.c,v 1.4 2012/10/27 17:17:55 chs Exp $");
     35 
     36 #include "opt_vr41xx.h"
     37 
     38 #include <sys/param.h>
     39 #include <sys/device.h>
     40 #include <sys/systm.h>
     41 
     42 #include <machine/bus.h>
     43 
     44 #include <hpcmips/vr/vrcpudef.h>
     45 #include <hpcmips/vr/vripunit.h>
     46 #include <hpcmips/vr/vripreg.h>
     47 #include <hpcmips/vr/vripvar.h>
     48 #include <hpcmips/vr/vr4181ipvar.h>
     49 #include <hpcmips/vr/icureg.h>
     50 #include <hpcmips/vr/cmureg.h>
     51 
     52 static void vr4181ipattach(device_t, device_t, void *);
     53 
     54 CFATTACH_DECL_NEW(vr4181ip, sizeof(struct vrip_softc),
     55 	      vripmatch, vr4181ipattach, NULL, NULL);
     56 
     57 static const struct vrip_unit vr4181ip_units[] = {
     58 	[VRIP_UNIT_RTC] = { "rtc",
     59 			    { VRIP_INTR_RTCL1,	},		},
     60 	[VRIP_UNIT_SIU] = { "siu",
     61 			    { VRIP_INTR_SIU,	},		},
     62 	[VRIP_UNIT_GIU] = { "giu",
     63 			    { VRIP_INTR_GIU,	},		},
     64 	[VRIP_UNIT_ECU] = { "ecu",
     65 			    { VRIP_INTR_ECU,	},		},
     66 	[VRIP_UNIT_AIU] = { "aiu",
     67 			    { VRIP_INTR_DCU81,	},		},
     68 #if 0
     69 	[VRIP_UNIT_PMU] = { "pmu",
     70 			    { VRIP_INTR_POWER,	VRIP_INTR_BAT,	},	},
     71 	[VRIP_UNIT_PIU] = { "piu",
     72 			    { VRIP_INTR_PIU, },
     73 			    CMUMASK_PIU,
     74 			    ICUPIUINT_REG_W,	MPIUINT_REG_W	},
     75 	[VRIP_UNIT_KIU] = { "kiu",
     76 			    { VRIP_INTR_KIU,	},
     77 			    CMUMASK_KIU,
     78 			    KIUINT_REG_W,	MKIUINT_REG_W	},
     79 	[VRIP_UNIT_LED] = { "led",
     80 			    { VRIP_INTR_LED,	},		},
     81 	[VRIP_UNIT_AIU] = { "aiu",
     82 			    { VRIP_INTR_AIU,	},
     83 			    CMUMASK_AIU,
     84 			    AIUINT_REG_W,	MAIUINT_REG_W	},
     85 	[VRIP_UNIT_FIR] = { "fir",
     86 			    { VRIP_INTR_FIR,	},
     87 			    CMUMASK_FIR,
     88 			    FIRINT_REG_W,	MFIRINT_REG_W	},
     89 	[VRIP_UNIT_DSIU]= { "dsiu",
     90 			    { VRIP_INTR_DSIU,	},
     91 			    CMUMASK_DSIU,
     92 			    DSIUINT_REG_W,	MDSIUINT_REG_W	},
     93 	[VRIP_UNIT_PCIU]= { "pciu",
     94 			    { VRIP_INTR_PCI,	},
     95 			    CMUMASK_PCIU,
     96 			    PCIINT_REG_W,	MPCIINT_REG_W	},
     97 	[VRIP_UNIT_SCU] = { "scu",
     98 			    { VRIP_INTR_SCU,	},
     99 			    0,
    100 			    SCUINT_REG_W,	MSCUINT_REG_W	},
    101 	[VRIP_UNIT_CSI] = { "csi",
    102 			    { VRIP_INTR_CSI,	},
    103 			    CMUMASK_CSI,
    104 			    CSIINT_REG_W,	MCSIINT_REG_W	},
    105 	[VRIP_UNIT_BCU] = { "bcu",
    106 			    { VRIP_INTR_BCU,	},
    107 			    0,
    108 			    BCUINT_REG_W,	MBCUINT_REG_W	},
    109 #endif
    110 };
    111 
    112 #define MAXCOMINTR	2
    113 
    114 struct vr4181ip_intrhand {
    115 	int	(*ih_fun)(void *);
    116 	void	*ih_arg;
    117 };
    118 
    119 static struct vr4181ip_intrhand intrhands[MAXCOMINTR];
    120 static int			registered = 0;
    121 
    122 
    123 static void
    124 vr4181ipattach(device_t parent, device_t self, void *aux)
    125 {
    126 	struct vrip_softc *sc = device_private(self);
    127 
    128 	printf("\n");
    129 
    130 	sc->sc_units = vr4181ip_units;
    131 	sc->sc_nunits = sizeof(vr4181ip_units)/sizeof(struct vrip_unit);
    132 	sc->sc_icu_addr = VR4181_ICU_ADDR;
    133 	sc->sc_sysint2 = VR4181_SYSINT2_REG_W;
    134 	sc->sc_msysint2 = VR4181_MSYSINT2_REG_W;
    135 
    136 	vripattach_common(parent, self, aux);
    137 }
    138 
    139 static int
    140 vr4181ip_comintr(void *arg)
    141 {
    142 	struct vr4181ip_intrhand	*ih = arg;
    143 	int				i;
    144 
    145 	for (i = 0; i < MAXCOMINTR; i++) {
    146 		if (ih[i].ih_fun)
    147 			ih[i].ih_fun(ih[i].ih_arg);
    148 	}
    149 	return 1;
    150 }
    151 
    152 void
    153 vr4181ip_comintr_establish(vrip_chipset_tag_t vc, int unit, int line,
    154 			   int level, int (*ih_fun)(void *), void *ih_arg)
    155 {
    156 	int	i;
    157 
    158 	if (!registered) {
    159 		if (!vrip_intr_establish(vc, unit, 0, IPL_TTY,
    160 					 vr4181ip_comintr, intrhands)) {
    161 			panic("vr4181ip_comintr_establish: "
    162 			      "can't map interrupt line.");
    163 		}
    164 		registered = 1;
    165 	}
    166 
    167 	for (i = 0; i < MAXCOMINTR; i++) {
    168 		if (intrhands[i].ih_fun == NULL) {
    169 			intrhands[i].ih_fun = ih_fun;
    170 			intrhands[i].ih_arg = ih_arg;
    171 			break;
    172 		}
    173 	}
    174 	if (i >= MAXCOMINTR)
    175 		panic("too many vr4181 SIU");
    176 }
    177