1 /*- 2 * Copyright (c) 1994,1995 Stefan Esser, Wolfgang StanglMeier 3 * Copyright (c) 2000 Michael Smith <msmith@freebsd.org> 4 * Copyright (c) 2000 BSDi 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 AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, 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 * $FreeBSD$ 31 */ 32 33 #ifndef __PCIB_PRIVATE_H__ 34 #define __PCIB_PRIVATE_H__ 35 36 /* 37 * Export portions of generic PCI:PCI bridge support so that it can be 38 * used by subclasses. 39 */ 40 DECLARE_CLASS(pcib_driver); 41 42 #ifdef NEW_PCIB 43 #define WIN_IO 0x1 44 #define WIN_MEM 0x2 45 #define WIN_PMEM 0x4 46 47 struct pcib_window { 48 pci_addr_t base; /* base address */ 49 pci_addr_t limit; /* topmost address */ 50 struct rman rman; 51 struct resource *res; 52 int reg; /* resource id from parent */ 53 int valid; 54 int mask; /* WIN_* bitmask of this window */ 55 int step; /* log_2 of window granularity */ 56 const char *name; 57 }; 58 #endif 59 60 /* 61 * Bridge-specific data. 62 */ 63 struct pcib_softc 64 { 65 device_t dev; 66 uint32_t flags; /* flags */ 67 #define PCIB_SUBTRACTIVE 0x1 68 #define PCIB_DISABLE_MSI 0x2 69 uint16_t command; /* command register */ 70 u_int domain; /* domain number */ 71 u_int pribus; /* primary bus number */ 72 u_int secbus; /* secondary bus number */ 73 u_int subbus; /* subordinate bus number */ 74 #ifdef NEW_PCIB 75 struct pcib_window io; /* I/O port window */ 76 struct pcib_window mem; /* memory window */ 77 struct pcib_window pmem; /* prefetchable memory window */ 78 #else 79 pci_addr_t pmembase; /* base address of prefetchable memory */ 80 pci_addr_t pmemlimit; /* topmost address of prefetchable memory */ 81 pci_addr_t membase; /* base address of memory window */ 82 pci_addr_t memlimit; /* topmost address of memory window */ 83 uint32_t iobase; /* base address of port window */ 84 uint32_t iolimit; /* topmost address of port window */ 85 #endif 86 uint16_t secstat; /* secondary bus status register */ 87 uint16_t bridgectl; /* bridge control register */ 88 uint8_t seclat; /* secondary bus latency timer */ 89 }; 90 91 typedef uint32_t pci_read_config_fn(int b, int s, int f, int reg, int width); 92 93 int host_pcib_get_busno(pci_read_config_fn read_config, int bus, 94 int slot, int func, uint8_t *busnum); 95 int pcib_attach(device_t dev); 96 void pcib_attach_common(device_t dev); 97 int pcib_read_ivar(device_t dev, device_t child, int which, uintptr_t *result); 98 int pcib_write_ivar(device_t dev, device_t child, int which, uintptr_t value); 99 struct resource *pcib_alloc_resource(device_t dev, device_t child, int type, int *rid, 100 u_long start, u_long end, u_long count, u_int flags); 101 #ifdef NEW_PCIB 102 int pcib_adjust_resource(device_t bus, device_t child, int type, 103 struct resource *r, u_long start, u_long end); 104 int pcib_release_resource(device_t dev, device_t child, int type, int rid, 105 struct resource *r); 106 #endif 107 int pcib_maxslots(device_t dev); 108 uint32_t pcib_read_config(device_t dev, u_int b, u_int s, u_int f, u_int reg, int width); 109 void pcib_write_config(device_t dev, u_int b, u_int s, u_int f, u_int reg, uint32_t val, int width); 110 int pcib_route_interrupt(device_t pcib, device_t dev, int pin); 111 int pcib_alloc_msi(device_t pcib, device_t dev, int count, int maxcount, int *irqs); 112 int pcib_release_msi(device_t pcib, device_t dev, int count, int *irqs); 113 int pcib_alloc_msix(device_t pcib, device_t dev, int *irq); 114 int pcib_release_msix(device_t pcib, device_t dev, int irq); 115 int pcib_map_msi(device_t pcib, device_t dev, int irq, uint64_t *addr, uint32_t *data); 116 117 #endif 118