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ixdp425_pci.c revision 1.1 
      1 /*      $NetBSD: ixdp425_pci.c,v 1.1 2003/05/24 01:59:32 ichiro Exp $ */
      2 /*
      3  * Copyright (c) 2003
      4  *      Ichiro FUKUHARA <ichiro (at) ichiro.org>.
      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  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *      This product includes software developed by Ichiro FUKUHARA.
     18  * 4. The name of the company nor the name of the author may be used to
     19  *    endorse or promote products derived from this software without specific
     20  *    prior written permission.
     21  *
     22  * THIS SOFTWARE IS PROVIDED BY ICHIRO FUKUHARA ``AS IS'' AND ANY EXPRESS OR
     23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     25  * IN NO EVENT SHALL ICHIRO FUKUHARA OR THE VOICES IN HIS HEAD BE LIABLE FOR
     26  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     32  * SUCH DAMAGE.
     33  */
     34 
     35 #include <sys/cdefs.h>
     36 __KERNEL_RCSID(0, "$NetBSD: ixdp425_pci.c,v 1.1 2003/05/24 01:59:32 ichiro Exp $");
     37 
     38 /*
     39  * IXDP425 PCI interrupt support.
     40  */
     41 
     42 #include <sys/param.h>
     43 #include <sys/systm.h>
     44 #include <sys/device.h>
     45 
     46 #include <machine/autoconf.h>
     47 #include <machine/bus.h>
     48 
     49 #include <evbarm/ixdp425/ixdp425reg.h>
     50 #include <evbarm/ixdp425/ixdp425var.h>
     51 
     52 #include <arm/xscale/ixp425reg.h>
     53 #include <arm/xscale/ixp425var.h>
     54 
     55 #include <dev/pci/pcidevs.h>
     56 #include <dev/pci/ppbreg.h>
     57 
     58 int ixdp425_pci_intr_map(struct pci_attach_args *, pci_intr_handle_t *);
     59 const char *ixdp425_pci_intr_string(void *, pci_intr_handle_t);
     60 const struct evcnt *ixdp425_pci_intr_evcnt(void *, pci_intr_handle_t);
     61 void *ixdp425_pci_intr_establish(void *, pci_intr_handle_t, int,
     62 	int (*func)(void *), void *);
     63 void ixdp425_pci_intr_disestablish(void *, void *);
     64 
     65 void
     66 ixdp425_pci_init(pci_chipset_tag_t pc, void *cookie)
     67 {
     68 	pc->pc_intr_v = cookie;
     69 	pc->pc_intr_map = ixdp425_pci_intr_map;
     70 	pc->pc_intr_string = ixdp425_pci_intr_string;
     71 	pc->pc_intr_evcnt = ixdp425_pci_intr_evcnt;
     72 	pc->pc_intr_establish = ixdp425_pci_intr_establish;
     73 	pc->pc_intr_disestablish = ixdp425_pci_intr_disestablish;
     74 }
     75 
     76 int
     77 ixdp425_pci_intr_map(struct pci_attach_args *pa, pci_intr_handle_t *ihp)
     78 {
     79 	int pin = pa->pa_intrpin;
     80 
     81 #ifdef PCI_DEBUG
     82 	void *v = pa->pa_pc;
     83 	int line = pa->pa_intrline;
     84 	int dev=pa->pa_device;
     85 	pcitag_t intrtag = pa->pa_intrtag;
     86 
     87 	printf("ixdp425_pci_intr_map: v=%p, tag=%08lx intrpin=%d line=%d dev=%d\n",
     88 		v, intrtag, pin, line, dev);
     89 #endif
     90 
     91 	switch (pin) {
     92 	case 1:
     93 		*ihp = PCI_INT_A;
     94 		return (0);
     95 	case 2:
     96 		*ihp = PCI_INT_B;
     97 		return (0);
     98 	case 3:
     99 		*ihp = PCI_INT_C;
    100 		return (0);
    101 	case 4:
    102 		*ihp = PCI_INT_D;
    103 		return (0);
    104 	default:
    105 #ifdef PCI_DEBUG
    106 		printf("ixdp425_pci_intr_map: no mapping for %d/%d/%d\n",
    107 			pa->pa_bus, pa->pa_device, pa->pa_function);
    108 #endif
    109 		return (1);
    110 	}
    111 
    112 	return (0);
    113 }
    114 
    115 const char *
    116 ixdp425_pci_intr_string(void *v, pci_intr_handle_t ih)
    117 {
    118 	static char irqstr[IRQNAMESIZE];
    119 
    120 	sprintf(irqstr, "ixp425 irq %ld", ih);
    121 	return (irqstr);
    122 }
    123 
    124 const struct evcnt *
    125 ixdp425_pci_intr_evcnt(void *v, pci_intr_handle_t ih)
    126 {
    127 	return (NULL);
    128 }
    129 
    130 void *
    131 ixdp425_pci_intr_establish(void *v, pci_intr_handle_t ih, int ipl,
    132     int (*func)(void *), void *arg)
    133 {
    134 #ifdef PCI_DEBUG
    135 	printf("ixdp425_pci_intr_establish(v=%p, irq=%d, ipl=%d, func=%p, arg=%p)\n",
    136 		v, (int) ih, ipl, func, arg);
    137 #endif
    138 
    139 	return (ixp425_intr_establish(ih, ipl, func, arg));
    140 }
    141 
    142 void
    143 ixdp425_pci_intr_disestablish(void *v, void *cookie)
    144 {
    145 #ifdef PCI_DEBUG
    146 	printf("ixdp425_pci_intr_disestablish(v=%p, cookie=%p)\n",
    147 		v, cookie);
    148 #endif
    149 
    150 	ixp425_intr_disestablish(cookie);
    151 }
    152