1 /* $NetBSD: pci_machdep.h,v 1.7 2008/05/29 14:51:26 mrg 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 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #ifndef _SPARC_PCI_MACHDEP_H_ 30 #define _SPARC_PCI_MACHDEP_H_ 31 32 /* 33 * Machine-specific definitions for PCI autoconfiguration. 34 */ 35 36 /* 37 * Types provided to machine-independent PCI code 38 */ 39 typedef struct sparc_pci_chipset *pci_chipset_tag_t; 40 typedef u_int pci_intr_handle_t; 41 typedef uint64_t pcitag_t; 42 43 44 /* 45 * Forward declarations. 46 */ 47 struct pci_attach_args; 48 49 50 /* 51 * sparc-specific PCI structure and type definitions. 52 * NOT TO BE USED DIRECTLY BY MACHINE INDEPENDENT CODE. 53 */ 54 struct sparc_pci_chipset { 55 void *cookie; /* msiiep_softc, but sssh! */ 56 }; 57 58 /* 59 * The MI PCI code expects pcitag_t to be a scalar type. But besides 60 * the bus/device/function we need to store the OFW node as well. We 61 * can squeeze them into a uint64_t with a little help from some 62 * macros. And while we are at it mangle bus/device/function into a 63 * form directly suitable for pci mode1 configuration address port. 64 */ 65 #define PCITAG_CREATE(n,b,d,f) \ 66 (((uint64_t)(n)<<32)|0x80000000U|((b)<<16)|((d)<<11)|((f)<<8)) 67 68 #define PCITAG_NODE(t) ((uint32_t)(((t)>>32)&0xffffffff)) 69 #define PCITAG_OFFSET(t) ((uint32_t)((t)&0xffffffff)) 70 #define PCITAG_BUS(t) ((PCITAG_OFFSET(t)>>16)&0xFF) 71 #define PCITAG_DEV(t) ((PCITAG_OFFSET(t)>>11)&0x1F) 72 #define PCITAG_FUN(t) ((PCITAG_OFFSET(t)>>8)&0x7) 73 74 75 /* 76 * Functions provided to machine-independent PCI code. 77 */ 78 void pci_attach_hook(struct device *, struct device *, 79 struct pcibus_attach_args *); 80 int pci_bus_maxdevs(pci_chipset_tag_t, int); 81 pcitag_t pci_make_tag(pci_chipset_tag_t, int, int, int); 82 void pci_decompose_tag(pci_chipset_tag_t, pcitag_t, 83 int *, int *, int *); 84 pcireg_t pci_conf_read(pci_chipset_tag_t, pcitag_t, int); 85 void pci_conf_write(pci_chipset_tag_t, pcitag_t, int, pcireg_t); 86 int pci_intr_map(struct pci_attach_args *, pci_intr_handle_t *); 87 const char *pci_intr_string(pci_chipset_tag_t, pci_intr_handle_t); 88 const struct evcnt *pci_intr_evcnt(pci_chipset_tag_t, pci_intr_handle_t); 89 void *pci_intr_establish(pci_chipset_tag_t, pci_intr_handle_t, 90 int, int (*)(void *), void *); 91 void pci_intr_disestablish(pci_chipset_tag_t, void *); 92 93 #endif /* _SPARC_PCI_MACHDEP_H_ */ 94