46f40af052
style pci drivers with a simple one-line change to use a module that registers itself under new-bus and should in theory enable just about all of the pci drivers to be loadable (kldload and loader(8)) but without having the impact of converting the APIs yet. This also fixes the problem of having undefined variables when only new-style pci drivers are present.
315 lines
10 KiB
C
315 lines
10 KiB
C
/*
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* Copyright (c) 1997, Stefan Esser <se@freebsd.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice unmodified, this list of conditions, and the following
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* disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $Id: pcivar.h,v 1.27 1999/04/17 08:36:07 peter Exp $
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*
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*/
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#ifndef _PCIVAR_H_
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#define _PCIVAR_H_
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#ifndef PCI_COMPAT
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#define PCI_COMPAT
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#endif
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#include <pci/pci_ioctl.h> /* XXX KDM */
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#include <sys/queue.h>
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/* some PCI bus constants */
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#define PCI_BUSMAX 255 /* highest supported bus number */
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#define PCI_SLOTMAX 31 /* highest supported slot number */
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#define PCI_FUNCMAX 7 /* highest supported function number */
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#define PCI_REGMAX 255 /* highest supported config register addr. */
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#define PCI_MAXMAPS_0 6 /* max. no. of memory/port maps */
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#define PCI_MAXMAPS_1 2 /* max. no. of maps for PCI to PCI bridge */
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#define PCI_MAXMAPS_2 1 /* max. no. of maps for CardBus bridge */
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/* pci_addr_t covers this system's PCI bus address space: 32 or 64 bit */
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#ifdef PCI_A64
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typedef u_int64_t pci_addr_t; /* u_int64_t for system with 64bit addresses */
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#else
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typedef u_int32_t pci_addr_t; /* u_int64_t for system with 64bit addresses */
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#endif
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/* map register information */
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typedef struct {
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u_int32_t base;
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u_int8_t type;
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#define PCI_MAPMEM 0x01 /* memory map */
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#define PCI_MAPMEMP 0x02 /* prefetchable memory map */
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#define PCI_MAPPORT 0x04 /* port map */
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u_int8_t ln2size;
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u_int8_t ln2range;
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u_int8_t reg; /* offset of map register in config space */
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/* u_int8_t dummy;*/
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struct resource *res; /* handle from resource manager */
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} pcimap;
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/* config header information common to all header types */
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typedef struct pcicfg {
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struct device *dev; /* device which owns this */
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pcimap *map; /* pointer to array of PCI maps */
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void *hdrspec; /* pointer to header type specific data */
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struct resource *irqres; /* resource descriptor for interrupt mapping */
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u_int16_t subvendor; /* card vendor ID */
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u_int16_t subdevice; /* card device ID, assigned by card vendor */
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u_int16_t vendor; /* chip vendor ID */
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u_int16_t device; /* chip device ID, assigned by chip vendor */
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u_int16_t cmdreg; /* disable/enable chip and PCI options */
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u_int16_t statreg; /* supported PCI features and error state */
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u_int8_t baseclass; /* chip PCI class */
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u_int8_t subclass; /* chip PCI subclass */
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u_int8_t progif; /* chip PCI programming interface */
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u_int8_t revid; /* chip revision ID */
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u_int8_t hdrtype; /* chip config header type */
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u_int8_t cachelnsz; /* cache line size in 4byte units */
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u_int8_t intpin; /* PCI interrupt pin */
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u_int8_t intline; /* interrupt line (IRQ for PC arch) */
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u_int8_t mingnt; /* min. useful bus grant time in 250ns units */
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u_int8_t maxlat; /* max. tolerated bus grant latency in 250ns */
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u_int8_t lattimer; /* latency timer in units of 30ns bus cycles */
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u_int8_t mfdev; /* multi-function device (from hdrtype reg) */
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u_int8_t nummaps; /* actual number of PCI maps used */
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u_int8_t bus; /* config space bus address */
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u_int8_t slot; /* config space slot address */
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u_int8_t func; /* config space function number */
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u_int8_t secondarybus; /* bus on secondary side of bridge, if any */
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u_int8_t subordinatebus; /* topmost bus number behind bridge, if any */
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} pcicfgregs;
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/* additional type 1 device config header information (PCI to PCI bridge) */
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#ifdef PCI_A64
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#define PCI_PPBMEMBASE(h,l) ((((pci_addr_t)(h) << 32) + ((l)<<16)) & ~0xfffff)
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#define PCI_PPBMEMLIMIT(h,l) ((((pci_addr_t)(h) << 32) + ((l)<<16)) | 0xfffff)
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#else
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#define PCI_PPBMEMBASE(h,l) (((l)<<16) & ~0xfffff)
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#define PCI_PPBMEMLIMIT(h,l) (((l)<<16) | 0xfffff)
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#endif /* PCI_A64 */
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#define PCI_PPBIOBASE(h,l) ((((h)<<16) + ((l)<<8)) & ~0xfff)
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#define PCI_PPBIOLIMIT(h,l) ((((h)<<16) + ((l)<<8)) | 0xfff)
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typedef struct {
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pci_addr_t pmembase; /* base address of prefetchable memory */
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pci_addr_t pmemlimit; /* topmost address of prefetchable memory */
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u_int32_t membase; /* base address of memory window */
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u_int32_t memlimit; /* topmost address of memory window */
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u_int32_t iobase; /* base address of port window */
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u_int32_t iolimit; /* topmost address of port window */
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u_int16_t secstat; /* secondary bus status register */
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u_int16_t bridgectl; /* bridge control register */
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u_int8_t seclat; /* CardBus latency timer */
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} pcih1cfgregs;
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/* additional type 2 device config header information (CardBus bridge) */
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typedef struct {
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u_int32_t membase0; /* base address of memory window */
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u_int32_t memlimit0; /* topmost address of memory window */
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u_int32_t membase1; /* base address of memory window */
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u_int32_t memlimit1; /* topmost address of memory window */
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u_int32_t iobase0; /* base address of port window */
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u_int32_t iolimit0; /* topmost address of port window */
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u_int32_t iobase1; /* base address of port window */
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u_int32_t iolimit1; /* topmost address of port window */
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u_int32_t pccardif; /* PC Card 16bit IF legacy more base addr. */
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u_int16_t secstat; /* secondary bus status register */
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u_int16_t bridgectl; /* bridge control register */
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u_int8_t seclat; /* CardBus latency timer */
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} pcih2cfgregs;
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/* PCI bus attach definitions (there could be multiple PCI bus *trees* ... */
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typedef struct pciattach {
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int unit;
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int pcibushigh;
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struct pciattach *next;
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} pciattach;
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struct pci_devinfo {
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STAILQ_ENTRY(pci_devinfo) pci_links;
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struct pci_device *device; /* should this be ifdefed? */
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pcicfgregs cfg;
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struct pci_conf conf;
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};
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extern u_int32_t pci_numdevs;
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/* externally visible functions */
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int pci_probe (pciattach *attach);
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void pci_drvattach(struct pci_devinfo *dinfo);
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/* low level PCI config register functions provided by pcibus.c */
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int pci_cfgopen (void);
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int pci_cfgread (pcicfgregs *cfg, int reg, int bytes);
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void pci_cfgwrite (pcicfgregs *cfg, int reg, int data, int bytes);
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#ifdef __alpha__
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vm_offset_t pci_cvt_to_dense (vm_offset_t);
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vm_offset_t pci_cvt_to_bwx (vm_offset_t);
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#endif /* __alpha__ */
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#ifdef _SYS_BUS_H_
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#include "pci_if.h"
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enum pci_device_ivars {
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PCI_IVAR_SUBVENDOR,
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PCI_IVAR_SUBDEVICE,
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PCI_IVAR_VENDOR,
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PCI_IVAR_DEVICE,
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PCI_IVAR_DEVID,
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PCI_IVAR_CLASS,
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PCI_IVAR_SUBCLASS,
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PCI_IVAR_PROGIF,
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PCI_IVAR_REVID,
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PCI_IVAR_INTPIN,
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PCI_IVAR_IRQ,
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PCI_IVAR_BUS,
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PCI_IVAR_SLOT,
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PCI_IVAR_FUNCTION,
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PCI_IVAR_SECONDARYBUS,
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PCI_IVAR_SUBORDINATEBUS,
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};
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/*
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* Simplified accessors for pci devices
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*/
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#define PCI_ACCESSOR(A, B, T) \
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\
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static __inline T pci_get_ ## A(device_t dev) \
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{ \
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uintptr_t v; \
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BUS_READ_IVAR(device_get_parent(dev), dev, PCI_IVAR_ ## B, &v); \
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return (T) v; \
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} \
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\
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static __inline void pci_set_ ## A(device_t dev, T t) \
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{ \
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u_long v = (u_long) t; \
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BUS_WRITE_IVAR(device_get_parent(dev), dev, PCI_IVAR_ ## B, v); \
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}
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PCI_ACCESSOR(subvendor, SUBVENDOR, u_int16_t)
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PCI_ACCESSOR(subdevice, SUBDEVICE, u_int16_t)
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PCI_ACCESSOR(vendor, VENDOR, u_int16_t)
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PCI_ACCESSOR(device, DEVICE, u_int16_t)
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PCI_ACCESSOR(devid, DEVID, u_int32_t)
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PCI_ACCESSOR(class, CLASS, u_int8_t)
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PCI_ACCESSOR(subclass, SUBCLASS, u_int8_t)
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PCI_ACCESSOR(progif, PROGIF, u_int8_t)
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PCI_ACCESSOR(revid, REVID, u_int8_t)
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PCI_ACCESSOR(intpin, INTPIN, u_int8_t)
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PCI_ACCESSOR(irq, IRQ, u_int8_t)
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PCI_ACCESSOR(bus, BUS, u_int8_t)
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PCI_ACCESSOR(slot, SLOT, u_int8_t)
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PCI_ACCESSOR(function, FUNCTION, u_int8_t)
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PCI_ACCESSOR(secondarybus, SECONDARYBUS, u_int8_t)
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PCI_ACCESSOR(subordinatebus, SUBORDINATEBUS, u_int8_t)
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static __inline u_int32_t
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pci_read_config(device_t dev, int reg, int width)
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{
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return PCI_READ_CONFIG(device_get_parent(dev), dev, reg, width);
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}
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static __inline void
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pci_write_config(device_t dev, int reg, u_int32_t val, int width)
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{
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PCI_WRITE_CONFIG(device_get_parent(dev), dev, reg, val, width);
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}
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#endif
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/* for compatibility to FreeBSD-2.2 version of PCI code */
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#ifdef PCI_COMPAT
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typedef pcicfgregs *pcici_t;
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typedef unsigned pcidi_t;
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typedef void pci_inthand_t(void *arg);
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#define pci_max_burst_len (3)
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/* just copied from old PCI code for now ... */
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extern int pci_mechanism;
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struct pci_device {
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char* pd_name;
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const char* (*pd_probe ) (pcici_t tag, pcidi_t type);
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void (*pd_attach) (pcici_t tag, int unit);
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u_long *pd_count;
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int (*pd_shutdown) (int, int);
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};
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#ifdef __i386__
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typedef u_short pci_port_t;
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#else
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typedef u_int pci_port_t;
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#endif
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u_long pci_conf_read (pcici_t tag, u_long reg);
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void pci_conf_write (pcici_t tag, u_long reg, u_long data);
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int pci_map_port (pcici_t tag, u_long reg, pci_port_t* pa);
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int pci_map_mem (pcici_t tag, u_long reg, vm_offset_t* va, vm_offset_t* pa);
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int pci_map_dense (pcici_t tag, u_long reg, vm_offset_t* va, vm_offset_t* pa);
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int pci_map_bwx (pcici_t tag, u_long reg, vm_offset_t* va, vm_offset_t* pa);
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int pci_map_int (pcici_t tag, pci_inthand_t *handler, void *arg,
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intrmask_t *maskptr);
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int pci_map_int_right(pcici_t cfg, pci_inthand_t *handler, void *arg,
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intrmask_t *maskptr, u_int flags);
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int pci_unmap_int (pcici_t tag);
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struct moduledata;
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int compat_pci_handler (struct moduledata *, int, void *);
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#define COMPAT_PCI_DRIVER(name, pcidata) \
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static moduledata_t name##_mod = { \
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#name, \
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compat_pci_handler, \
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&pcidata \
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}; \
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DECLARE_MODULE(name, name##_mod, SI_SUB_DRIVERS, SI_ORDER_ANY)
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#endif /* PCI_COMPAT */
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#endif /* _PCIVAR_H_ */
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