c1c1a23f53
power x 0. pccardc power x 0 used to disable the slot. But a suspend/resume would reactivate the pccard. It no longer does that. Now the disabling of the slot is sticy until it is reset with power x 1 or the card is ejected. This seems closer to correct behavior to me. o Process all card state changes the same using pccard_do_stat_change(). o Cleanup disabling the card so that we can preserve the state after the change. Basically, don't set it to empty as often as we do. o On suspend, the new state is "empty" and the laststate is "suspend" o Document state machine with a diagram of states and edges. The edges are labeld to tell the reader what event causes the external state changes. o "machdep.pccard.pcic_resume_reset" may be obsolete now. We always call the bridge driver's resume method on resume now. Otherwise cards won't automatically show up. If it needs to stay, I'll add it back.
102 lines
4.3 KiB
C
102 lines
4.3 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_char (*getb)(struct pcic_slot *, int);
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void (*putb)(struct pcic_slot *, int, u_char);
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bus_space_tag_t bst;
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bus_space_handle_t bsh;
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driver_intr_t *intr;
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void *argp;
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};
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enum pcic_irq_type { isa_parallel, pci_parallel, isa_serial };
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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 0x0000020 /* Uses the ricoh power regs */
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enum pcic_irq_type csc_route; /* How to route csc interrupts */
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enum pcic_irq_type 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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bus_space_tag_t bst; /* Bus tag for our regs */
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bus_space_handle_t bsh; /* Bus handle for our regs */
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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;
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};
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extern devclass_t pcic_devclass;
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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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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, u_int32_t *deltap);
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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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