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windows. Right now we only support pci chips that are memory mapped. These are the most common bridges in use today and will help a large majority of the users. I/O mapped PCI chips support this functionality in a different way, as do some of the ISA bridges (but only when mounted on a motherboard). These chips are not supported by this change.
127 lines
5.0 KiB
C
127 lines
5.0 KiB
C
/*
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* Copyright (c) 2001 M. Warner Losh. 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, this list of conditions and the following 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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* $FreeBSD$
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*/
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/*
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* Per-slot data table.
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*/
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struct pcic_slot {
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int offset; /* Offset value for index */
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char controller; /* Device type */
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char revision; /* Device Revision */
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struct slot *slt; /* Back ptr to slot */
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struct pcic_softc *sc; /* Back pointer to softc */
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u_int8_t (*getb)(struct pcic_slot *, int);
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void (*putb)(struct pcic_slot *, int, u_int8_t);
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bus_space_tag_t bst;
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bus_space_handle_t bsh;
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};
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enum pcic_intr_way { pcic_iw_isa = 1, pcic_iw_pci = 2 };
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struct pcic_softc
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{
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u_int32_t slotmask;/* Mask of valid slots */
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u_int32_t flags; /* Interesting flags */
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#define PCIC_AB_POWER 0x00000001 /* Use old A/B step power */
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#define PCIC_DF_POWER 0x00000002 /* Uses DF step regs */
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#define PCIC_PD_POWER 0x00000004 /* Uses CL-PD regs */
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#define PCIC_VG_POWER 0x00000008 /* Uses VG power regs */
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#define PCIC_KING_POWER 0x00000010 /* Uses IBM KING regs */
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#define PCIC_RICOH_POWER 0x00000020 /* Uses the ricoh power regs */
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#define PCIC_CARDBUS_POWER 0x00000040 /* Cardbus power regs */
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#define PCIC_YENTA_HIGH_MEMORY 0x0080 /* Can do high memory mapping */
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enum pcic_intr_way csc_route; /* How to route csc interrupts */
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enum pcic_intr_way func_route; /* How to route function ints */
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int iorid; /* Rid of I/O region */
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struct resource *iores; /* resource for I/O region */
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int memrid; /* Memory rid */
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struct resource *memres;/* Resource for memory mapped regs */
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int irqrid; /* Irq rid */
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struct resource *irqres;/* Irq resource */
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void *ih; /* Our interrupt handler. */
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int irq;
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device_t dev; /* Our device */
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void (*slot_poll)(void *);
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struct callout_handle timeout_ch;
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struct pcic_slot slots[PCIC_MAX_SLOTS];
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int cd_pending; /* debounce timeout active */
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int cd_present; /* debounced card-present state */
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struct callout_handle cd_ch; /* handle for pcic_cd_insert */
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struct pcic_chip *chip;
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driver_intr_t *func_intr;
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void *func_arg;
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};
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typedef int (pcic_intr_way_t)(struct pcic_slot *, enum pcic_intr_way);
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typedef int (pcic_intr_mapirq_t)(struct pcic_slot *, int irq);
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typedef void (pcic_init_t)(device_t);
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struct pcic_chip
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{
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pcic_intr_way_t *func_intr_way;
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pcic_intr_way_t *csc_intr_way;
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pcic_intr_mapirq_t *map_irq;
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pcic_init_t *init;
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};
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extern devclass_t pcic_devclass;
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extern int pcic_override_irq;
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int pcic_activate_resource(device_t dev, device_t child, int type, int rid,
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struct resource *r);
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struct resource *pcic_alloc_resource(device_t dev, device_t child, int type,
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int *rid, u_long start, u_long end, u_long count, u_int flags);
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int pcic_attach(device_t dev);
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void pcic_clrb(struct pcic_slot *sp, int reg, unsigned char mask);
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int pcic_deactivate_resource(device_t dev, device_t child, int type, int rid,
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struct resource *r);
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void pcic_dealloc(device_t dev);
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void pcic_do_stat_delta(struct pcic_slot *sp);
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int pcic_get_memory_offset(device_t bus, device_t child, int rid,
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u_int32_t *offset);
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int pcic_get_res_flags(device_t bus, device_t child, int restype, int rid,
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u_long *value);
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unsigned char pcic_getb_io(struct pcic_slot *sp, int reg);
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driver_intr_t pcic_isa_intr;
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int pcic_isa_intr1(void *);
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pcic_intr_mapirq_t pcic_isa_mapirq;
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void pcic_putb_io(struct pcic_slot *sp, int reg, unsigned char val);
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int pcic_set_memory_offset(device_t bus, device_t child, int rid,
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u_int32_t offset
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#if __FreeBSD_version >= 500000
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, u_int32_t *deltap
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#endif
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);
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int pcic_set_res_flags(device_t bus, device_t child, int restype, int rid,
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u_long value);
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void pcic_setb(struct pcic_slot *sp, int reg, unsigned char mask);
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int pcic_setup_intr(device_t dev, device_t child, struct resource *irq,
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int flags, driver_intr_t *intr, void *arg, void **cookiep);
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int pcic_teardown_intr(device_t dev, device_t child, struct resource *irq,
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void *cookie);
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timeout_t pcic_timeout;
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