1 /* $NetBSD: pci_machdep.h,v 1.14 2002/05/16 20:28:34 eeh Exp $ */ 2 3 /* 4 * Copyright (c) 1999 Matthew R. Green 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. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 23 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 25 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31 #ifndef _MACHINE_PCI_MACHDEP_H_ 32 #define _MACHINE_PCI_MACHDEP_H_ 33 34 /* 35 * Forward declarations. 36 */ 37 struct pci_attach_args; 38 39 /* 40 * define some bits used to glue into the common PCI code. 41 */ 42 43 typedef struct sparc_pci_chipset *pci_chipset_tag_t; 44 typedef u_int pci_intr_handle_t; 45 46 struct sparc_pci_chipset { 47 void *cookie; /* psycho_pbm, but sssh! */ 48 int rootnode; /* PCI controller */ 49 }; 50 51 /* 52 * The stuuuuuuupid allegedly MI PCI code expects pcitag_t to be a 53 * scalar type. But we really need to store both the OFW node and 54 * the bus/device/function info in it. (We'd like to store more, 55 * like all the ofw properties, but we don't need to.) Luckily, 56 * both are 32-bit values, so we can squeeze them into a u_int64_t 57 * with a little help from some macros. 58 */ 59 60 #define PCITAG_NODE(x) (int)(((x)>>32)&0xffffffff) 61 #define PCITAG_OFFSET(x) ((x)&0xffffffff) 62 #define PCITAG_BUS(t) ((PCITAG_OFFSET(t)>>16)&0xff) 63 #define PCITAG_DEV(t) ((PCITAG_OFFSET(t)>>11)&0x1f) 64 #define PCITAG_FUN(t) ((PCITAG_OFFSET(t)>>8)&0x7) 65 #define PCITAG_CREATE(n,b,d,f) (((u_int64_t)(n)<<32)|((b)<<16)|((d)<<11)|((f)<<8)) 66 #define PCITAG_SETNODE(t,n) ((t)&0xffffffff)|(((n)<<32) 67 typedef u_int64_t pcitag_t; 68 69 70 void pci_attach_hook(struct device *, struct device *, 71 struct pcibus_attach_args *); 72 int pci_bus_maxdevs(pci_chipset_tag_t, int); 73 pcitag_t pci_make_tag(pci_chipset_tag_t, int, int, int); 74 void pci_decompose_tag(pci_chipset_tag_t, pcitag_t, int *, int *, 75 int *); 76 pcireg_t pci_conf_read(pci_chipset_tag_t, pcitag_t, int); 77 void pci_conf_write(pci_chipset_tag_t, pcitag_t, int, 78 pcireg_t); 79 int pci_intr_map(struct pci_attach_args *, pci_intr_handle_t *); 80 const char *pci_intr_string(pci_chipset_tag_t, pci_intr_handle_t); 81 const struct evcnt *pci_intr_evcnt(pci_chipset_tag_t, pci_intr_handle_t); 82 void *pci_intr_establish(pci_chipset_tag_t, pci_intr_handle_t, 83 int, int (*)(void *), void *); 84 void pci_intr_disestablish(pci_chipset_tag_t, void *); 85 86 int pci_enumerate_bus(struct pci_softc *, 87 int (*match)(struct pci_attach_args *), 88 struct pci_attach_args *); 89 90 #endif /* _MACHINE_PCI_MACHDEP_H_ */ 91