/* * Copyright (c) 1997, Stefan Esser * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice unmodified, this list of conditions, and the following * disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * $Id: pcivar.h,v 1.20 1998/08/13 19:12:20 gibbs Exp $ * */ #ifndef _PCIVAR_H_ #define _PCIVAR_H_ #ifndef PCI_COMPAT #define PCI_COMPAT #endif #include /* XXX KDM */ #include /* some PCI bus constants */ #define PCI_BUSMAX 255 /* highest supported bus number */ #define PCI_SLOTMAX 31 /* highest supported slot number */ #define PCI_FUNCMAX 7 /* highest supported function number */ #define PCI_REGMAX 255 /* highest supported config register addr. */ #define PCI_MAXMAPS_0 6 /* max. no. of memory/port maps */ #define PCI_MAXMAPS_1 2 /* max. no. of maps for PCI to PCI bridge */ #define PCI_MAXMAPS_2 1 /* max. no. of maps for CardBus bridge */ /* pci_addr_t covers this system's PCI bus address space: 32 or 64 bit */ #ifdef PCI_A64 typedef u_int64_t pci_addr_t; /* u_int64_t for system with 64bit addresses */ #else typedef u_int32_t pci_addr_t; /* u_int64_t for system with 64bit addresses */ #endif /* map register information */ typedef struct { u_int32_t base; u_int8_t type; #define PCI_MAPMEM 0x01 /* memory map */ #define PCI_MAPMEMP 0x02 /* prefetchable memory map */ #define PCI_MAPPORT 0x04 /* port map */ u_int8_t ln2size; u_int8_t ln2range; /* u_int8_t dummy;*/ } pcimap; /* config header information common to all header types */ typedef struct pcicfg { pcimap *map; /* pointer to array of PCI maps */ void *hdrspec; /* pointer to header type specific data */ u_int16_t subvendor; /* card vendor ID */ u_int16_t subdevice; /* card device ID, assigned by card vendor */ u_int16_t vendor; /* chip vendor ID */ u_int16_t device; /* chip device ID, assigned by chip vendor */ u_int16_t cmdreg; /* disable/enable chip and PCI options */ u_int16_t statreg; /* supported PCI features and error state */ u_int8_t baseclass; /* chip PCI class */ u_int8_t subclass; /* chip PCI subclass */ u_int8_t progif; /* chip PCI programming interface */ u_int8_t revid; /* chip revision ID */ u_int8_t hdrtype; /* chip config header type */ u_int8_t cachelnsz; /* cache line size in 4byte units */ u_int8_t intpin; /* PCI interrupt pin */ u_int8_t intline; /* interrupt line (IRQ for PC arch) */ u_int8_t mingnt; /* min. useful bus grant time in 250ns units */ u_int8_t maxlat; /* max. tolerated bus grant latency in 250ns */ u_int8_t lattimer; /* latency timer in units of 30ns bus cycles */ u_int8_t mfdev; /* multi-function device (from hdrtype reg) */ u_int8_t nummaps; /* actual number of PCI maps used */ u_int8_t bus; /* config space bus address */ u_int8_t slot; /* config space slot address */ u_int8_t func; /* config space function number */ u_int8_t secondarybus; /* bus on secondary side of bridge, if any */ u_int8_t subordinatebus; /* topmost bus number behind bridge, if any */ } pcicfgregs; /* additional type 1 device config header information (PCI to PCI bridge) */ #ifdef PCI_A64 #define PCI_PPBMEMBASE(h,l) ((((pci_addr_t)(h) << 32) + ((l)<<16)) & ~0xfffff) #define PCI_PPBMEMLIMIT(h,l) ((((pci_addr_t)(h) << 32) + ((l)<<16)) | 0xfffff) #else #define PCI_PPBMEMBASE(h,l) (((l)<<16) & ~0xfffff) #define PCI_PPBMEMLIMIT(h,l) (((l)<<16) | 0xfffff) #endif /* PCI_A64 */ #define PCI_PPBIOBASE(h,l) ((((h)<<16) + ((l)<<8)) & ~0xfff) #define PCI_PPBIOLIMIT(h,l) ((((h)<<16) + ((l)<<8)) | 0xfff) typedef struct { pci_addr_t pmembase; /* base address of prefetchable memory */ pci_addr_t pmemlimit; /* topmost address of prefetchable memory */ u_int32_t membase; /* base address of memory window */ u_int32_t memlimit; /* topmost address of memory window */ u_int32_t iobase; /* base address of port window */ u_int32_t iolimit; /* topmost address of port window */ u_int16_t secstat; /* secondary bus status register */ u_int16_t bridgectl; /* bridge control register */ u_int8_t seclat; /* CardBus latency timer */ } pcih1cfgregs; /* additional type 2 device config header information (CardBus bridge) */ typedef struct { u_int32_t membase0; /* base address of memory window */ u_int32_t memlimit0; /* topmost address of memory window */ u_int32_t membase1; /* base address of memory window */ u_int32_t memlimit1; /* topmost address of memory window */ u_int32_t iobase0; /* base address of port window */ u_int32_t iolimit0; /* topmost address of port window */ u_int32_t iobase1; /* base address of port window */ u_int32_t iolimit1; /* topmost address of port window */ u_int32_t pccardif; /* PC Card 16bit IF legacy more base addr. */ u_int16_t secstat; /* secondary bus status register */ u_int16_t bridgectl; /* bridge control register */ u_int8_t seclat; /* CardBus latency timer */ } pcih2cfgregs; /* PCI bus attach definitions (there could be multiple PCI bus *trees* ... */ typedef struct pciattach { int unit; int pcibushigh; struct pciattach *next; } pciattach; struct pci_devinfo { STAILQ_ENTRY(pci_devinfo) pci_links; struct pci_device *device; /* should this be ifdefed? */ pcicfgregs cfg; struct pci_conf conf; }; extern u_int32_t pci_numdevs; /* externally visible functions */ int pci_probe (pciattach *attach); void pci_drvattach(struct pci_devinfo *dinfo); /* low level PCI config register functions provided by pcibus.c */ int pci_cfgopen (void); int pci_cfgread (pcicfgregs *cfg, int reg, int bytes); void pci_cfgwrite (pcicfgregs *cfg, int reg, int data, int bytes); /* for compatibility to FreeBSD-2.2 version of PCI code */ #ifdef PCI_COMPAT typedef pcicfgregs *pcici_t; typedef unsigned pcidi_t; typedef void pci_inthand_t(void *arg); #define pci_max_burst_len (3) /* just copied from old PCI code for now ... */ extern struct linker_set pcidevice_set; extern int pci_mechanism; struct pci_device { char* pd_name; char* (*pd_probe ) (pcici_t tag, pcidi_t type); void (*pd_attach) (pcici_t tag, int unit); u_long *pd_count; int (*pd_shutdown) (int, int); }; struct pci_lkm { struct pci_device *dvp; struct pci_lkm *next; }; #ifdef __i386__ typedef u_short pci_port_t; #else typedef u_int pci_port_t; #endif u_long pci_conf_read (pcici_t tag, u_long reg); void pci_conf_write (pcici_t tag, u_long reg, u_long data); void pci_configure (void); int pci_map_port (pcici_t tag, u_long reg, pci_port_t* pa); int pci_map_mem (pcici_t tag, u_long reg, vm_offset_t* va, vm_offset_t* pa); int pci_map_int (pcici_t tag, pci_inthand_t *func, void *arg, unsigned *maskptr); int pci_unmap_int (pcici_t tag); int pci_register_lkm (struct pci_device *dvp, int if_revision); #endif /* PCI_COMPAT */ #endif /* _PCIVAR_H_ */