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ixm1200_pci.c revision 1.3 
      1 /*      $NetBSD: ixm1200_pci.c,v 1.3 2003/02/17 20:51:53 ichiro Exp $ */
      2 #define PCI_DEBUG
      3 /*
      4  * Copyright (c) 2002, 2003
      5  *      Ichiro FUKUHARA <ichiro (at) ichiro.org>.
      6  * All rights reserved.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  * 3. All advertising materials mentioning features or use of this software
     17  *    must display the following acknowledgement:
     18  *      This product includes software developed by Ichiro FUKUHARA.
     19  * 4. The name of the company nor the name of the author may be used to
     20  *    endorse or promote products derived from this software without specific
     21  *    prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY ICHIRO FUKUHARA ``AS IS'' AND ANY EXPRESS OR
     24  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     25  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     26  * IN NO EVENT SHALL ICHIRO FUKUHARA OR THE VOICES IN HIS HEAD BE LIABLE FOR
     27  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  * SUCH DAMAGE.
     34  */
     35 
     36 /*
     37  * IXM1200 PCI interrupt support.
     38  */
     39 
     40 #include <sys/param.h>
     41 #include <sys/systm.h>
     42 #include <sys/device.h>
     43 
     44 #include <machine/autoconf.h>
     45 #include <machine/bus.h>
     46 
     47 #include <evbarm/ixm1200/ixm1200reg.h>
     48 #include <evbarm/ixm1200/ixm1200var.h>
     49 
     50 #include <arm/ixp12x0/ixp12x0reg.h>
     51 #include <arm/ixp12x0/ixp12x0var.h>
     52 
     53 #include <arm/ixp12x0/ixp12x0_pcireg.h>
     54 
     55 #include <dev/pci/pcidevs.h>
     56 #include <dev/pci/ppbreg.h>
     57 
     58 int ixm1200_pci_intr_map(struct pci_attach_args *, pci_intr_handle_t *);
     59 const char *ixm1200_pci_intr_string(void *, pci_intr_handle_t);
     60 const struct evcnt *ixm1200_pci_intr_evcnt(void *, pci_intr_handle_t);
     61 void *ixm1200_pci_intr_establish(void *, pci_intr_handle_t, int,
     62 	int (*func)(void *), void *);
     63 void ixm1200_pci_intr_disestablish(void *, void *);
     64 
     65 void
     66 ixm1200_pci_init(pc, cookie)
     67 	pci_chipset_tag_t pc;
     68 	void *cookie;
     69 {
     70 	pc->pc_intr_v = cookie;
     71 	pc->pc_intr_map = ixm1200_pci_intr_map;
     72 	pc->pc_intr_string = ixm1200_pci_intr_string;
     73 	pc->pc_intr_evcnt = ixm1200_pci_intr_evcnt;
     74 	pc->pc_intr_establish = ixm1200_pci_intr_establish;
     75 	pc->pc_intr_disestablish = ixm1200_pci_intr_disestablish;
     76 }
     77 
     78 int
     79 ixm1200_pci_intr_map(pa, ihp)
     80 	struct pci_attach_args *pa;
     81 	pci_intr_handle_t *ihp;
     82 {
     83 #ifdef PCI_DEBUG
     84 	void *v = pa->pa_pc;
     85 	int pin = pa->pa_intrpin;
     86 	int line = pa->pa_intrline;
     87 	int dev=pa->pa_device;
     88 	pcitag_t intrtag = pa->pa_intrtag;
     89 
     90 	printf("ixm1200_pci_intr_map: v=%p, tag=%08lx intrpin=%d line=%d dev=%d\n",
     91 		v, intrtag, pin, line, dev);
     92 #endif
     93 
     94 	/* ixp12x0 has only one interrupt line for PCI */
     95 	*ihp = IXPPCI_INTR_PIL;
     96 	return (0);
     97 }
     98 
     99 const char *
    100 ixm1200_pci_intr_string(v, ih)
    101 	void *v;
    102 	pci_intr_handle_t ih;
    103 {
    104 	static char irqstr[IRQNAMESIZE];
    105 
    106 	sprintf(irqstr, "IXM1200 irq %ld", ih);
    107 	return (irqstr);
    108 }
    109 
    110 const struct evcnt *
    111 ixm1200_pci_intr_evcnt(v, ih)
    112 	void *v;
    113 	pci_intr_handle_t ih;
    114 {
    115 	return (NULL);
    116 }
    117 
    118 void *
    119 ixm1200_pci_intr_establish(v, ih, ipl, func, arg)
    120 	void *v;
    121 	pci_intr_handle_t ih;
    122 	int ipl;
    123 	int (*func)(void *);
    124 	void *arg;
    125 {
    126 #ifdef PCI_DEBUG
    127 	printf("ixm1200_pci_intr_establish(v=%p, irq=%d, ipl=%d, func=%p, arg=%p)\n",
    128 		v, (int) ih, ipl, func, arg);
    129 #endif
    130 
    131 	return (ixp12x0_intr_establish(ih, ipl, func, arg));
    132 }
    133 
    134 void
    135 ixm1200_pci_intr_disestablish(void *v, void *cookie)
    136 {
    137 #ifdef PCI_DEBUG
    138 	printf("ixm1200_pci_intr_disestablish(v=%p, cookie=%p)\n",
    139 		v, cookie);
    140 #endif
    141 
    142 	ixp12x0_intr_disestablish(cookie);
    143 }
    144