1d88dfe265
o ToPIC is happy with two cards now, even when the two cards are modems. o Fix (all?) hangs on boot when power is applied to the card. I suspect that this will make the Ricoh bridges happier and also make a lot of VAIO owners happy (confirm to me in private email please :-). o All Cardbus bridges should now support 3.3V, X.XV and Y.YV cards, to the extent that the underlying hardware supports such cards. (X.X and Y.Y haven't been assigned values yet :-). o Better 3.3V support for Ricoh ISA bridges. How: o Don't mess with the power register when scanning the cards. It is unnecessary and causes BADVcc conditions on many chipsets. These in turn can cause an interrupt storm. o Make pcic_disable reset the slot's voltage. o Move initializing voltage for the slot until after it has been disabled. o Fix a lot of issues with the pcic_cardbus_power routine. We now properly enable the card and take it out of reset after a power change. o When detecting the card's voltage, if we're in a BadVcc state, direct the bridge to rescan the card for what it supports. (we might need to in the future set the power register to 0 before doing this). o Don't preserve CLKSTOP. need to revisit this. o Better support for Ricoh ISA bridges for 3.3V cards. o Don't write to PCIC_POWER directly as offten, but instead go through the pcic_power interface. o All cardbus bridges now default to use cardbus power control. o Add misc register definitions. o remove some (now) bogus comments. Extra Special Thanks To: Scott Lamber for his kind and generous loan of a Toshiba laptop with a ToPIC 100 in it for my use.
1293 lines
33 KiB
C
1293 lines
33 KiB
C
/*
|
|
* Intel PCIC or compatible Controller driver
|
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*-------------------------------------------------------------------------
|
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*
|
|
* Copyright (c) 2001 M. Warner Losh. All rights reserved.
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* Copyright (c) 1995 Andrew McRae. 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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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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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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#include <sys/param.h>
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#include <sys/bus.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/sysctl.h>
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#include <sys/systm.h>
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#include <machine/clock.h>
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#include <pccard/i82365.h>
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#include <pccard/pcic_pci.h>
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#include <pccard/cardinfo.h>
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#include <pccard/slot.h>
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#include <pccard/pcicvar.h>
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/* Get pnp IDs */
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#include <isa/isavar.h>
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#include <dev/pcic/i82365reg.h>
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#include <dev/pccard/pccardvar.h>
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#include "card_if.h"
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/*
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* Prototypes for interrupt handler.
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*/
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static int pcic_ioctl(struct slot *, int, caddr_t);
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static int pcic_power(struct slot *);
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static void pcic_mapirq(struct slot *, int);
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static timeout_t pcic_reset;
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static void pcic_resume(struct slot *);
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static void pcic_disable(struct slot *);
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static int pcic_memory(struct slot *, int);
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static int pcic_io(struct slot *, int);
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devclass_t pcic_devclass;
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static struct slot_ctrl pcic_cinfo = {
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pcic_mapirq,
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pcic_memory,
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pcic_io,
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pcic_reset,
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pcic_disable,
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pcic_power,
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pcic_ioctl,
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pcic_resume,
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PCIC_MEM_WIN,
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PCIC_IO_WIN
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};
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/* sysctl vars */
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SYSCTL_NODE(_hw, OID_AUTO, pcic, CTLFLAG_RD, 0, "PCIC parameters");
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int pcic_override_irq = 0;
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TUNABLE_INT("machdep.pccard.pcic_irq", &pcic_override_irq);
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TUNABLE_INT("hw.pcic.irq", &pcic_override_irq);
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SYSCTL_INT(_hw_pcic, OID_AUTO, irq, CTLFLAG_RD,
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&pcic_override_irq, 0,
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"Override the IRQ configured by the config system for all pcic devices");
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int pcic_boot_deactivated = 0;
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TUNABLE_INT("hw.pcic.boot_deactivated", &pcic_boot_deactivated);
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SYSCTL_INT(_hw_pcic, OID_AUTO, boot_deactivated, CTLFLAG_RD,
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&pcic_boot_deactivated, 0,
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"Override the automatic powering up of pccards at boot.");
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/*
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* Read a register from the PCIC.
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*/
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unsigned char
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pcic_getb_io(struct pcic_slot *sp, int reg)
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{
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bus_space_write_1(sp->bst, sp->bsh, PCIC_INDEX, sp->offset + reg);
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return (bus_space_read_1(sp->bst, sp->bsh, PCIC_DATA));
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}
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/*
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* Write a register on the PCIC
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*/
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void
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pcic_putb_io(struct pcic_slot *sp, int reg, unsigned char val)
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{
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/*
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* Many datasheets recommend using outw rather than outb to save
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* a microsecond. Maybe we should do this, but we'd likely only
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* save 20-30us on card activation.
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*/
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bus_space_write_1(sp->bst, sp->bsh, PCIC_INDEX, sp->offset + reg);
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bus_space_write_1(sp->bst, sp->bsh, PCIC_DATA, val);
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}
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/*
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* Clear bit(s) of a register.
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*/
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__inline void
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pcic_clrb(struct pcic_slot *sp, int reg, unsigned char mask)
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{
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sp->putb(sp, reg, sp->getb(sp, reg) & ~mask);
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}
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/*
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* Set bit(s) of a register
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*/
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__inline void
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pcic_setb(struct pcic_slot *sp, int reg, unsigned char mask)
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{
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sp->putb(sp, reg, sp->getb(sp, reg) | mask);
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}
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/*
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* Write a 16 bit value to 2 adjacent PCIC registers
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*/
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static __inline void
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pcic_putw(struct pcic_slot *sp, int reg, unsigned short word)
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{
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sp->putb(sp, reg, word & 0xFF);
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sp->putb(sp, reg + 1, (word >> 8) & 0xff);
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}
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/*
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* pc98 cbus cards introduce a slight wrinkle here. They route the irq7 pin
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* from the pcic chip to INT 2 on the cbus. INT 2 is normally mapped to
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* irq 6 on the pc98 architecture, so if we get a request for irq 6
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* lie to the hardware and say it is 7. All the other usual mappings for
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* cbus INT into irq space are the same as the rest of the system.
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*/
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static __inline int
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host_irq_to_pcic(int irq)
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{
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#ifdef PC98
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if (irq == 6)
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irq = 7;
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#endif
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return (irq);
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}
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/*
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* Free up resources allocated so far.
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*/
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void
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pcic_dealloc(device_t dev)
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{
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struct pcic_softc *sc;
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sc = (struct pcic_softc *) device_get_softc(dev);
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if (sc->slot_poll)
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untimeout(sc->slot_poll, sc, sc->timeout_ch);
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if (sc->iores)
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bus_release_resource(dev, SYS_RES_IOPORT, sc->iorid,
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sc->iores);
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if (sc->memres)
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bus_release_resource(dev, SYS_RES_MEMORY, sc->memrid,
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sc->memres);
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if (sc->ih)
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bus_teardown_intr(dev, sc->irqres, sc->ih);
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if (sc->irqres)
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bus_release_resource(dev, SYS_RES_IRQ, sc->irqrid, sc->irqres);
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}
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/*
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* entry point from main code to map/unmap memory context.
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*/
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static int
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pcic_memory(struct slot *slt, int win)
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{
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struct pcic_slot *sp = slt->cdata;
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struct mem_desc *mp = &slt->mem[win];
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int reg = win * PCIC_MEMSIZE + PCIC_MEMBASE;
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if (win < 0 || win >= slt->ctrl->maxmem) {
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printf("Illegal PCIC MEMORY window request %d\n", win);
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return (ENXIO);
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}
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if (mp->flags & MDF_ACTIVE) {
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unsigned long sys_addr = (uintptr_t)(void *)mp->start >> 12;
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/*
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* Write the addresses, card offsets and length.
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* The values are all stored as the upper 12 bits of the
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* 24 bit address i.e everything is allocated as 4 Kb chunks.
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*/
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pcic_putw(sp, reg, sys_addr & 0xFFF);
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pcic_putw(sp, reg+2, (sys_addr + (mp->size >> 12) - 1) & 0xFFF);
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pcic_putw(sp, reg+4, ((mp->card >> 12) - sys_addr) & 0x3FFF);
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/*
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* Each 16 bit register has some flags in the upper bits.
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*/
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if (mp->flags & MDF_16BITS)
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pcic_setb(sp, reg+1, PCIC_DATA16);
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if (mp->flags & MDF_ZEROWS)
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pcic_setb(sp, reg+1, PCIC_ZEROWS);
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if (mp->flags & MDF_WS0)
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pcic_setb(sp, reg+3, PCIC_MW0);
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if (mp->flags & MDF_WS1)
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pcic_setb(sp, reg+3, PCIC_MW1);
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if (mp->flags & MDF_ATTR)
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pcic_setb(sp, reg+5, PCIC_REG);
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if (mp->flags & MDF_WP)
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pcic_setb(sp, reg+5, PCIC_WP);
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/*
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* Enable the memory window. By experiment, we need a delay.
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*/
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pcic_setb(sp, PCIC_ADDRWINE, (1<<win) | PCIC_MEMCS16);
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DELAY(50);
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} else {
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pcic_clrb(sp, PCIC_ADDRWINE, 1<<win);
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pcic_putw(sp, reg, 0);
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pcic_putw(sp, reg+2, 0);
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pcic_putw(sp, reg+4, 0);
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}
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return (0);
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}
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/*
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* pcic_io - map or unmap I/O context
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*/
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static int
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pcic_io(struct slot *slt, int win)
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{
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int mask, reg;
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struct pcic_slot *sp = slt->cdata;
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struct io_desc *ip = &slt->io[win];
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if (bootverbose) {
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printf("pcic: I/O win %d flags %x %x-%x\n", win, ip->flags,
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ip->start, ip->start + ip->size - 1);
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}
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switch (win) {
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case 0:
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mask = PCIC_IO0_EN;
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reg = PCIC_IO0;
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break;
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case 1:
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mask = PCIC_IO1_EN;
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reg = PCIC_IO1;
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break;
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default:
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printf("Illegal PCIC I/O window request %d\n", win);
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return (ENXIO);
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}
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if (ip->flags & IODF_ACTIVE) {
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unsigned char x, ioctlv;
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pcic_putw(sp, reg, ip->start);
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pcic_putw(sp, reg+2, ip->start + ip->size - 1);
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x = 0;
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if (ip->flags & IODF_ZEROWS)
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x |= PCIC_IO_0WS;
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if (ip->flags & IODF_WS)
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x |= PCIC_IO_WS;
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if (ip->flags & IODF_CS16)
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x |= PCIC_IO_CS16;
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if (ip->flags & IODF_16BIT)
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x |= PCIC_IO_16BIT;
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/*
|
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* Extract the current flags and merge with new flags.
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* Flags for window 0 in lower nybble, and in upper nybble
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* for window 1.
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*/
|
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ioctlv = sp->getb(sp, PCIC_IOCTL);
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DELAY(100);
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switch (win) {
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case 0:
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sp->putb(sp, PCIC_IOCTL, x | (ioctlv & 0xf0));
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break;
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case 1:
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sp->putb(sp, PCIC_IOCTL, (x << 4) | (ioctlv & 0xf));
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break;
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}
|
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DELAY(100);
|
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pcic_setb(sp, PCIC_ADDRWINE, mask);
|
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DELAY(100);
|
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} else {
|
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pcic_clrb(sp, PCIC_ADDRWINE, mask);
|
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DELAY(100);
|
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pcic_putw(sp, reg, 0);
|
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pcic_putw(sp, reg + 2, 0);
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}
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return (0);
|
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}
|
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|
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static void
|
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pcic_do_mgt_irq(struct pcic_slot *sp, int irq)
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{
|
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u_int32_t reg;
|
|
|
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if (sp->sc->csc_route == pcic_iw_pci) {
|
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/* Do the PCI side of things: Enable the Card Change int */
|
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reg = CB_SM_CD;
|
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bus_space_write_4(sp->bst, sp->bsh, CB_SOCKET_MASK, reg);
|
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/*
|
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* TI Chips need us to set the following. We tell the
|
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* controller to route things via PCI interrupts. Also
|
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* we clear the interrupt number in the STAT_INT register
|
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* as well. The TI-12xx and newer chips require one or the
|
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* other of these to happen, depending on what is set in the
|
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* diagnostic register. I do both on the theory that other
|
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* chips might need one or the other and that no harm will
|
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* come from it. If there is harm, then I'll make it a bit
|
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* in the tables.
|
|
*/
|
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pcic_setb(sp, PCIC_INT_GEN, PCIC_INTR_ENA);
|
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pcic_clrb(sp, PCIC_STAT_INT, PCIC_CSCSELECT);
|
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} else {
|
|
/* Management IRQ changes */
|
|
/*
|
|
* The PCIC_INTR_ENA bit means either "tie the function
|
|
* and csc interrupts together" or "Route csc interrupts
|
|
* via PCI" or "Reserved". In any case, we want to clear
|
|
* it since we're using ISA interrupts.
|
|
*/
|
|
pcic_clrb(sp, PCIC_INT_GEN, PCIC_INTR_ENA);
|
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irq = host_irq_to_pcic(irq);
|
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sp->putb(sp, PCIC_STAT_INT, (irq << PCIC_SI_IRQ_SHIFT) |
|
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PCIC_CDEN);
|
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}
|
|
}
|
|
|
|
int
|
|
pcic_attach(device_t dev)
|
|
{
|
|
int i;
|
|
device_t kid;
|
|
struct pcic_softc *sc;
|
|
struct slot *slt;
|
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struct pcic_slot *sp;
|
|
|
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sc = (struct pcic_softc *) device_get_softc(dev);
|
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callout_handle_init(&sc->timeout_ch);
|
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sp = &sc->slots[0];
|
|
for (i = 0; i < PCIC_CARD_SLOTS; i++, sp++) {
|
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if (!sp->slt)
|
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continue;
|
|
sp->slt = 0;
|
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kid = device_add_child(dev, NULL, -1);
|
|
if (kid == NULL) {
|
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device_printf(dev, "Can't add pccard bus slot %d", i);
|
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return (ENXIO);
|
|
}
|
|
device_probe_and_attach(kid);
|
|
slt = pccard_init_slot(kid, &pcic_cinfo);
|
|
if (slt == 0) {
|
|
device_printf(dev, "Can't get pccard info slot %d", i);
|
|
return (ENXIO);
|
|
}
|
|
sc->slotmask |= (1 << i);
|
|
slt->cdata = sp;
|
|
sp->slt = slt;
|
|
sp->sc = sc;
|
|
}
|
|
|
|
sp = &sc->slots[0];
|
|
for (i = 0; i < PCIC_CARD_SLOTS; i++, sp++) {
|
|
if (sp->slt == NULL)
|
|
continue;
|
|
|
|
pcic_do_mgt_irq(sp, sc->irq);
|
|
sp->slt->irq = sc->irq;
|
|
|
|
/* Check for changes */
|
|
sp->slt->laststate = sp->slt->state = empty;
|
|
if (pcic_boot_deactivated) {
|
|
if ((sp->getb(sp, PCIC_STATUS) & PCIC_CD) == PCIC_CD) {
|
|
sp->slt->state = inactive;
|
|
pccard_event(sp->slt, card_deactivated);
|
|
}
|
|
} else {
|
|
pcic_do_stat_delta(sp);
|
|
}
|
|
}
|
|
|
|
return (bus_generic_attach(dev));
|
|
}
|
|
|
|
|
|
static int
|
|
pcic_sresource(struct slot *slt, caddr_t data)
|
|
{
|
|
struct pccard_resource *pr;
|
|
struct resource *r;
|
|
int flags;
|
|
int rid = 0;
|
|
device_t bridgedev = slt->dev;
|
|
struct pcic_slot *sp = slt->cdata;
|
|
|
|
pr = (struct pccard_resource *)data;
|
|
pr->resource_addr = ~0ul;
|
|
|
|
/*
|
|
* If we're using PCI interrupt routing, then force the IRQ to
|
|
* use and to heck with what the user requested. If they want
|
|
* to be able to request IRQs, they must use ISA interrupt
|
|
* routing. If we don't give them an irq, and it is the
|
|
* pccardd 0,0 case, then just return (giving the "bad resource"
|
|
* return in pr->resource_addr).
|
|
*/
|
|
if (pr->type == SYS_RES_IRQ) {
|
|
if (sp->sc->func_route >= pcic_iw_pci) {
|
|
pr->resource_addr = sp->sc->irq;
|
|
return (0);
|
|
}
|
|
if (pr->min == 0 && pr->max == 0)
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Make sure we grok this type.
|
|
*/
|
|
switch(pr->type) {
|
|
default:
|
|
return (EINVAL);
|
|
case SYS_RES_MEMORY:
|
|
case SYS_RES_IRQ:
|
|
case SYS_RES_IOPORT:
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Allocate the resource, and align it to the most natural
|
|
* size. If we get it, then tell userland what we actually got
|
|
* in the range they requested.
|
|
*/
|
|
flags = rman_make_alignment_flags(pr->size);
|
|
r = bus_alloc_resource(bridgedev, pr->type, &rid, pr->min, pr->max,
|
|
pr->size, flags);
|
|
if (r != NULL) {
|
|
pr->resource_addr = (u_long)rman_get_start(r);
|
|
bus_release_resource(bridgedev, pr->type, rid, r);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* ioctl calls - Controller specific ioctls
|
|
*/
|
|
static int
|
|
pcic_ioctl(struct slot *slt, int cmd, caddr_t data)
|
|
{
|
|
struct pcic_slot *sp = slt->cdata;
|
|
struct pcic_reg *preg = (struct pcic_reg *) data;
|
|
|
|
switch(cmd) {
|
|
default:
|
|
return (ENOTTY);
|
|
case PIOCGREG: /* Get pcic register */
|
|
preg->value = sp->getb(sp, preg->reg);
|
|
break; /* Set pcic register */
|
|
case PIOCSREG:
|
|
sp->putb(sp, preg->reg, preg->value);
|
|
break;
|
|
case PIOCSRESOURCE: /* Can I use this resource? */
|
|
pcic_sresource(slt, data);
|
|
break;
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* pcic_cardbus_power
|
|
*
|
|
* Power the card up, as specified, using the cardbus power
|
|
* registers to control power. Microsoft recommends that cardbus
|
|
* vendors support powering the card via cardbus registers because
|
|
* there is no standard for 3.3V cards. Since at least a few of the
|
|
* cardbus bridges have minor issues with power via the ExCA registers,
|
|
* go ahead and do it all via cardbus registers.
|
|
*
|
|
* An expamination of the code will show the relative ease that we do
|
|
* Vpp in comparison to the ExCA case (which may be partially broken).
|
|
*/
|
|
static int
|
|
pcic_cardbus_power(struct pcic_slot *sp, struct slot *slt)
|
|
{
|
|
uint32_t power;
|
|
uint32_t state;
|
|
|
|
/*
|
|
* If we're doing an auto-detect, and we're in a badvcc state, then
|
|
* we need to force the socket to rescan the card. We don't do this
|
|
* all the time because the socket can take up to 200ms to do the deed,
|
|
* and that's too long to busy wait. Since this is a relatively rare
|
|
* event (some BIOSes, and earlier versions of OLDCARD caused it), we
|
|
* test for it special.
|
|
*/
|
|
state = bus_space_read_4(sp->bst, sp->bsh, CB_SOCKET_STATE);
|
|
if (slt->pwr.vcc == -1 && (state & CB_SS_BADVCC)) {
|
|
/*
|
|
* Force the bridge to scan the card for the proper voltages
|
|
* that it supports.
|
|
*/
|
|
bus_space_write_4(sp->bst, sp->bsh, CB_SOCKET_FORCE,
|
|
CB_SF_INTCVS);
|
|
state = bus_space_read_4(sp->bst, sp->bsh, CB_SOCKET_STATE);
|
|
/* This while loop can take 100-150ms */
|
|
while ((state & CB_SS_CARD_MASK) == 0) {
|
|
DELAY(10 * 1000);
|
|
state = bus_space_read_4(sp->bst, sp->bsh,
|
|
CB_SOCKET_STATE);
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* Preserve the clock stop bit of the socket power register. Not
|
|
* sure that we want to do that, but maybe we should set it based
|
|
* on the power state.
|
|
*/
|
|
power = bus_space_read_4(sp->bst, sp->bsh, CB_SOCKET_POWER);
|
|
power = 0;
|
|
|
|
/*
|
|
* vcc == -1 means automatically detect the voltage of the card.
|
|
* Do so and apply the right amount of power.
|
|
*/
|
|
if (slt->pwr.vcc == -1) {
|
|
if (state & CB_SS_5VCARD)
|
|
slt->pwr.vcc = 50;
|
|
else if (state & CB_SS_3VCARD)
|
|
slt->pwr.vcc = 33;
|
|
else if (state & CB_SS_XVCARD)
|
|
slt->pwr.vcc = 22;
|
|
else if (state & CB_SS_YVCARD)
|
|
slt->pwr.vcc = 11;
|
|
if (bootverbose && slt->pwr.vcc != -1)
|
|
device_printf(sp->sc->dev,
|
|
"Autodetected %d.%dV card\n",
|
|
slt->pwr.vcc / 10, slt->pwr.vcc % 10);
|
|
}
|
|
|
|
switch(slt->pwr.vcc) {
|
|
default:
|
|
return (EINVAL);
|
|
case 0:
|
|
power |= CB_SP_VCC_0V;
|
|
break;
|
|
case 11:
|
|
power |= CB_SP_VCC_YV;
|
|
break;
|
|
case 22:
|
|
power |= CB_SP_VCC_XV;
|
|
break;
|
|
case 33:
|
|
power |= CB_SP_VCC_3V;
|
|
break;
|
|
case 50:
|
|
power |= CB_SP_VCC_5V;
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* vpp == -1 means use vcc voltage.
|
|
*/
|
|
if (slt->pwr.vpp == -1)
|
|
slt->pwr.vpp = slt->pwr.vcc;
|
|
switch(slt->pwr.vpp) {
|
|
default:
|
|
return (EINVAL);
|
|
case 0:
|
|
power |= CB_SP_VPP_0V;
|
|
break;
|
|
case 11:
|
|
power |= CB_SP_VPP_YV;
|
|
break;
|
|
case 22:
|
|
power |= CB_SP_VPP_XV;
|
|
break;
|
|
case 33:
|
|
power |= CB_SP_VPP_3V;
|
|
break;
|
|
case 50:
|
|
power |= CB_SP_VPP_5V;
|
|
break;
|
|
case 120:
|
|
power |= CB_SP_VPP_12V;
|
|
break;
|
|
}
|
|
bus_space_write_4(sp->bst, sp->bsh, CB_SOCKET_POWER, power);
|
|
|
|
/*
|
|
* OK. We need to bring the card out of reset. Let the power
|
|
* stabilize for 300ms (why 300?) and then enable the outputs
|
|
* and then wait 100ms (why 100?) for it to stabilize. These numbers
|
|
* were stolen from the dim, dark past of OLDCARD and I have no clue
|
|
* how they were derived. I also use the bit setting routines here
|
|
* as a measure of conservatism.
|
|
*/
|
|
if (power) {
|
|
pcic_setb(sp, PCIC_POWER, PCIC_DISRST);
|
|
DELAY(300*1000);
|
|
pcic_setb(sp, PCIC_POWER, PCIC_DISRST | PCIC_OUTENA);
|
|
DELAY(100*1000);
|
|
} else {
|
|
pcic_clrb(sp, PCIC_POWER, PCIC_DISRST | PCIC_OUTENA);
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* pcic_power - Enable the power of the slot according to
|
|
* the parameters in the power structure(s).
|
|
*/
|
|
static int
|
|
pcic_power(struct slot *slt)
|
|
{
|
|
unsigned char c;
|
|
unsigned char reg = PCIC_DISRST | PCIC_PCPWRE;
|
|
struct pcic_slot *sp = slt->cdata;
|
|
struct pcic_slot *sp2;
|
|
struct pcic_softc *sc = sp->sc;
|
|
int dodefault = 0;
|
|
|
|
/*
|
|
* Cardbus power registers are completely different.
|
|
*/
|
|
if (sc->flags & PCIC_CARDBUS_POWER)
|
|
return (pcic_cardbus_power(sp, slt));
|
|
|
|
if (bootverbose)
|
|
device_printf(sc->dev, "Power: Vcc=%d Vpp=%d\n", slt->pwr.vcc,
|
|
slt->pwr.vpp);
|
|
/*
|
|
* If we're automatically detecting what voltage to use, then we need
|
|
* to ask the bridge what type (voltage-wise) the card is.
|
|
*/
|
|
if (slt->pwr.vcc == -1) {
|
|
if (sc->flags & PCIC_DF_POWER) {
|
|
/*
|
|
* Look at the VS[12]# bits on the card. If VS1 is
|
|
* clear then the card needs 3.3V instead of 5.0V.
|
|
*/
|
|
c = sp->getb(sp, PCIC_CDGC);
|
|
if ((c & PCIC_VS1STAT) == 0)
|
|
slt->pwr.vcc = 33;
|
|
else
|
|
slt->pwr.vcc = 50;
|
|
}
|
|
if (sc->flags & PCIC_PD_POWER) {
|
|
/*
|
|
* The 6710 does it one way, and the '22 and '29 do it
|
|
* another. And it appears that the '32 and '33 yet
|
|
* another way (which I don't know). The '22 can also
|
|
* do it the same way as a '10 does it, despite what
|
|
* the datasheets say. Some laptops with '22 don't
|
|
* seem to have the signals wired right for the '29
|
|
* method to work, so we always use the '10 method for
|
|
* the '22. The laptops that don't work hang solid
|
|
* when the pccard memory is accessed. The '32 and
|
|
* '33 cases are taken care of in cardbus code, so
|
|
* it doesn't matter that I have no clue.
|
|
*/
|
|
switch (sp->controller) {
|
|
case PCIC_PD6710:
|
|
case PCIC_PD6722:
|
|
c = sp->getb(sp, PCIC_MISC1);
|
|
if ((c & PCIC_MISC1_5V_DETECT) == 0)
|
|
slt->pwr.vcc = 33;
|
|
else
|
|
slt->pwr.vcc = 50;
|
|
break;
|
|
case PCIC_PD6729:
|
|
/*
|
|
* VS[12] signals are in slot1's
|
|
* extended reg 0xa for both slots.
|
|
*/
|
|
sp2 = &sc->slots[1];
|
|
sp2->putb(sp2, PCIC_EXT_IND, PCIC_EXT_DATA);
|
|
c = sp2->getb(sp2, PCIC_EXTENDED);
|
|
if (sp == sp2) /* slot 1 */
|
|
c >>= 2;
|
|
if ((c & PCIC_VS1A) == 0)
|
|
slt->pwr.vcc = 33;
|
|
else
|
|
slt->pwr.vcc = 50;
|
|
break;
|
|
default:
|
|
/* I have no idea how do do this for others */
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Regardless of the above, setting the Auto Power
|
|
* Switch Enable appears to help.
|
|
*/
|
|
reg |= PCIC_APSENA;
|
|
}
|
|
if (sc->flags & PCIC_RICOH_POWER) {
|
|
switch (sp->controller) {
|
|
case PCIC_RF5C396:
|
|
case PCIC_RF5C296:
|
|
/*
|
|
* The ISA bridge have the 5V/3.3V in register
|
|
* 1, bit 7.
|
|
*/
|
|
c = sp->getb(sp, PCIC_STATUS);
|
|
if ((c & PCIC_RICOH_5VCARD) == 0)
|
|
slt->pwr.vcc = 33;
|
|
else
|
|
slt->pwr.vcc = 50;
|
|
break;
|
|
}
|
|
}
|
|
/* Other bridges here */
|
|
if (bootverbose && slt->pwr.vcc != -1)
|
|
device_printf(sc->dev, "Autodetected %d.%dV card\n",
|
|
slt->pwr.vcc / 10, slt->pwr.vcc %10);
|
|
}
|
|
if (slt->pwr.vcc == -1) {
|
|
if (bootverbose)
|
|
device_printf(sc->dev,
|
|
"Couldn't autodetect voltage, assuming 5.0V\n");
|
|
dodefault = 1;
|
|
slt->pwr.vcc = 50;
|
|
}
|
|
|
|
/*
|
|
* XXX Note: The Vpp controls varies quit a bit between bridge chips
|
|
* and the following might not be right in all cases. The Linux
|
|
* code and wildboar code bases are more complex. However, most
|
|
* applications want vpp == vcc and the following code does appear
|
|
* to do that for all bridge sets.
|
|
*/
|
|
if (slt->pwr.vpp == -1)
|
|
slt->pwr.vpp = slt->pwr.vcc;
|
|
switch(slt->pwr.vpp) {
|
|
default:
|
|
return (EINVAL);
|
|
case 0:
|
|
break;
|
|
case 50:
|
|
case 33:
|
|
reg |= PCIC_VPP_5V;
|
|
break;
|
|
case 120:
|
|
reg |= PCIC_VPP_12V;
|
|
break;
|
|
}
|
|
|
|
if (slt->pwr.vcc)
|
|
reg |= PCIC_VCC_ON; /* Turn on Vcc */
|
|
switch(slt->pwr.vcc) {
|
|
default:
|
|
return (EINVAL);
|
|
case 0:
|
|
break;
|
|
case 33:
|
|
/*
|
|
* The wildboar code has comments that state that
|
|
* the IBM KING controller doesn't support 3.3V
|
|
* on the "IBM Smart PC card drive". The code
|
|
* intemates that's the only place they have seen
|
|
* it used and that there's a boatload of issues
|
|
* with it. I'm not even sure this is right because
|
|
* the only docs I've been able to find say this is for
|
|
* 5V power. Of course, this "doc" is just code comments
|
|
* so who knows for sure.
|
|
*/
|
|
if (sc->flags & PCIC_KING_POWER) {
|
|
reg |= PCIC_VCC_5V_KING;
|
|
break;
|
|
}
|
|
if (sc->flags & PCIC_VG_POWER) {
|
|
pcic_setb(sp, PCIC_CVSR, PCIC_CVSR_VS);
|
|
break;
|
|
}
|
|
if (sc->flags & PCIC_PD_POWER) {
|
|
pcic_setb(sp, PCIC_MISC1, PCIC_MISC1_VCC_33);
|
|
break;
|
|
}
|
|
if (sc->flags & PCIC_RICOH_POWER) {
|
|
pcic_setb(sp, PCIC_RICOH_MCR2, PCIC_MCR2_VCC_33);
|
|
break;
|
|
}
|
|
if (sc->flags & PCIC_DF_POWER)
|
|
reg |= PCIC_VCC_3V;
|
|
break;
|
|
case 50:
|
|
if (sc->flags & PCIC_KING_POWER)
|
|
reg |= PCIC_VCC_5V_KING;
|
|
/*
|
|
* For all of the variant power schemes for 3.3V go
|
|
* ahead and turn off the 3.3V enable bit. For all
|
|
* bridges, the setting the Vcc on bit does the rest.
|
|
* Note that we don't have to turn off the 3.3V bit
|
|
* for the '365 step D since with the reg assigments
|
|
* to this point it doesn't get turned on.
|
|
*/
|
|
if (sc->flags & PCIC_VG_POWER)
|
|
pcic_clrb(sp, PCIC_CVSR, PCIC_CVSR_VS);
|
|
if (sc->flags & PCIC_PD_POWER)
|
|
pcic_clrb(sp, PCIC_MISC1, PCIC_MISC1_VCC_33);
|
|
if (sc->flags & PCIC_RICOH_POWER)
|
|
pcic_clrb(sp, PCIC_RICOH_MCR2, PCIC_MCR2_VCC_33);
|
|
break;
|
|
}
|
|
sp->putb(sp, PCIC_POWER, reg);
|
|
if (bootverbose)
|
|
device_printf(sc->dev, "Power applied\n");
|
|
DELAY(300*1000);
|
|
if (slt->pwr.vcc) {
|
|
reg |= PCIC_OUTENA;
|
|
sp->putb(sp, PCIC_POWER, reg);
|
|
if (bootverbose)
|
|
device_printf(sc->dev, "Output enabled\n");
|
|
DELAY(100*1000);
|
|
if (bootverbose)
|
|
device_printf(sc->dev, "Settling complete\n");
|
|
}
|
|
|
|
/*
|
|
* Some chipsets will attempt to preclude us from supplying
|
|
* 5.0V to cards that only handle 3.3V. We seem to need to
|
|
* try 3.3V to paper over some power handling issues in other
|
|
* parts of the system. Maybe the proper detection of 3.3V cards
|
|
* now obviates the need for this hack, so put a printf in to
|
|
* warn the world about it.
|
|
*/
|
|
if (!(sp->getb(sp, PCIC_STATUS) & PCIC_POW) && dodefault) {
|
|
slt->pwr.vcc = 33;
|
|
slt->pwr.vpp = 0;
|
|
device_printf(sc->dev,
|
|
"Failed at 5.0V. Trying 3.3V. Please report message to mobile@freebsd.org\n");
|
|
return (pcic_power(slt));
|
|
}
|
|
if (bootverbose)
|
|
printf("Power complete.\n");
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* tell the PCIC which irq we want to use. only the following are legal:
|
|
* 3, 4, 5, 7, 9, 10, 11, 12, 14, 15. We require the callers of this
|
|
* routine to do the check for legality.
|
|
*/
|
|
static void
|
|
pcic_mapirq(struct slot *slt, int irq)
|
|
{
|
|
struct pcic_slot *sp = slt->cdata;
|
|
|
|
sp->sc->chip->map_irq(sp, irq);
|
|
}
|
|
|
|
/*
|
|
* pcic_reset - Reset the card and enable initial power. This may
|
|
* need to be interrupt driven in the future. We should likely turn
|
|
* the reset on, DELAY for a period of time < 250ms, turn it off and
|
|
* tsleep for a while and check it when we're woken up. I think that
|
|
* we're running afoul of the card status interrupt glitching, causing
|
|
* an interrupt storm because the card doesn't seem to be able to
|
|
* clear this pin while in reset.
|
|
*/
|
|
static void
|
|
pcic_reset(void *chan)
|
|
{
|
|
struct slot *slt = chan;
|
|
struct pcic_slot *sp = slt->cdata;
|
|
|
|
if (bootverbose)
|
|
device_printf(sp->sc->dev, "reset %d ", slt->insert_seq);
|
|
switch (slt->insert_seq) {
|
|
case 0: /* Something funny happended on the way to the pub... */
|
|
if (bootverbose)
|
|
printf("\n");
|
|
return;
|
|
case 1: /* Assert reset */
|
|
pcic_clrb(sp, PCIC_INT_GEN, PCIC_CARDRESET);
|
|
if (bootverbose)
|
|
printf("int is %x stat is %x\n",
|
|
sp->getb(sp, PCIC_INT_GEN),
|
|
sp->getb(sp, PCIC_STATUS));
|
|
slt->insert_seq = 2;
|
|
timeout(pcic_reset, (void *)slt, hz/4);
|
|
return;
|
|
case 2: /* Deassert it again */
|
|
pcic_setb(sp, PCIC_INT_GEN, PCIC_CARDRESET | PCIC_IOCARD);
|
|
if (bootverbose)
|
|
printf("int is %x stat is %x\n",
|
|
sp->getb(sp, PCIC_INT_GEN),
|
|
sp->getb(sp, PCIC_STATUS));
|
|
slt->insert_seq = 3;
|
|
timeout(pcic_reset, (void *)slt, hz/4);
|
|
return;
|
|
case 3: /* Wait if card needs more time */
|
|
if (bootverbose)
|
|
printf("int is %x stat is %x\n",
|
|
sp->getb(sp, PCIC_INT_GEN),
|
|
sp->getb(sp, PCIC_STATUS));
|
|
if (!sp->getb(sp, PCIC_STATUS) & PCIC_READY) {
|
|
timeout(pcic_reset, (void *)slt, hz/10);
|
|
return;
|
|
}
|
|
}
|
|
slt->insert_seq = 0;
|
|
if (sp->controller == PCIC_PD6722 || sp->controller == PCIC_PD6710) {
|
|
sp->putb(sp, PCIC_TIME_SETUP0, 0x1);
|
|
sp->putb(sp, PCIC_TIME_CMD0, 0x6);
|
|
sp->putb(sp, PCIC_TIME_RECOV0, 0x0);
|
|
sp->putb(sp, PCIC_TIME_SETUP1, 1);
|
|
sp->putb(sp, PCIC_TIME_CMD1, 0xf);
|
|
sp->putb(sp, PCIC_TIME_RECOV1, 0);
|
|
}
|
|
selwakeup(&slt->selp);
|
|
}
|
|
|
|
/*
|
|
* pcic_disable - Disable the slot. I wonder if these operations can
|
|
* cause an interrupt we need to acknowledge? XXX
|
|
*/
|
|
static void
|
|
pcic_disable(struct slot *slt)
|
|
{
|
|
struct pcic_slot *sp = slt->cdata;
|
|
|
|
pcic_clrb(sp, PCIC_INT_GEN, PCIC_CARDTYPE | PCIC_CARDRESET);
|
|
pcic_mapirq(slt, 0);
|
|
slt->pwr.vcc = slt->pwr.vpp = 0;
|
|
pcic_power(slt);
|
|
}
|
|
|
|
/*
|
|
* pcic_resume - Suspend/resume support for PCIC
|
|
*/
|
|
static void
|
|
pcic_resume(struct slot *slt)
|
|
{
|
|
struct pcic_slot *sp = slt->cdata;
|
|
|
|
pcic_do_mgt_irq(sp, slt->irq);
|
|
if (sp->controller == PCIC_PD6722) {
|
|
pcic_setb(sp, PCIC_MISC1, PCIC_MISC1_SPEAKER);
|
|
pcic_setb(sp, PCIC_MISC2, PCIC_LPDM_EN);
|
|
}
|
|
if (sp->slt->state != inactive)
|
|
pcic_do_stat_delta(sp);
|
|
}
|
|
|
|
int
|
|
pcic_activate_resource(device_t dev, device_t child, int type, int rid,
|
|
struct resource *r)
|
|
{
|
|
struct pccard_devinfo *devi = device_get_ivars(child);
|
|
int err;
|
|
|
|
if (dev != device_get_parent(device_get_parent(child)) || devi == NULL)
|
|
return (bus_generic_activate_resource(dev, child, type,
|
|
rid, r));
|
|
|
|
switch (type) {
|
|
case SYS_RES_IOPORT: {
|
|
struct io_desc *ip;
|
|
ip = &devi->slt->io[rid];
|
|
if (ip->flags == 0) {
|
|
if (rid == 0)
|
|
ip->flags = IODF_WS | IODF_16BIT | IODF_CS16;
|
|
else
|
|
ip->flags = devi->slt->io[0].flags;
|
|
}
|
|
ip->flags |= IODF_ACTIVE;
|
|
ip->start = rman_get_start(r);
|
|
ip->size = rman_get_end(r) - rman_get_start(r) + 1;
|
|
err = pcic_io(devi->slt, rid);
|
|
if (err)
|
|
return (err);
|
|
break;
|
|
}
|
|
case SYS_RES_IRQ:
|
|
/*
|
|
* We actually defer the activation of the IRQ resource
|
|
* until the interrupt is registered to avoid stray
|
|
* interrupt messages.
|
|
*/
|
|
break;
|
|
case SYS_RES_MEMORY: {
|
|
struct mem_desc *mp;
|
|
if (rid >= NUM_MEM_WINDOWS)
|
|
return (EINVAL);
|
|
mp = &devi->slt->mem[rid];
|
|
mp->flags |= MDF_ACTIVE;
|
|
mp->start = (caddr_t) rman_get_start(r);
|
|
mp->size = rman_get_end(r) - rman_get_start(r) + 1;
|
|
err = pcic_memory(devi->slt, rid);
|
|
if (err)
|
|
return (err);
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
err = bus_generic_activate_resource(dev, child, type, rid, r);
|
|
return (err);
|
|
}
|
|
|
|
int
|
|
pcic_deactivate_resource(device_t dev, device_t child, int type, int rid,
|
|
struct resource *r)
|
|
{
|
|
struct pccard_devinfo *devi = device_get_ivars(child);
|
|
int err;
|
|
|
|
if (dev != device_get_parent(device_get_parent(child)) || devi == NULL)
|
|
return (bus_generic_deactivate_resource(dev, child, type,
|
|
rid, r));
|
|
|
|
switch (type) {
|
|
case SYS_RES_IOPORT: {
|
|
struct io_desc *ip = &devi->slt->io[rid];
|
|
ip->flags &= ~IODF_ACTIVE;
|
|
err = pcic_io(devi->slt, rid);
|
|
if (err)
|
|
return (err);
|
|
break;
|
|
}
|
|
case SYS_RES_IRQ:
|
|
break;
|
|
case SYS_RES_MEMORY: {
|
|
struct mem_desc *mp = &devi->slt->mem[rid];
|
|
mp->flags &= ~(MDF_ACTIVE | MDF_ATTR);
|
|
err = pcic_memory(devi->slt, rid);
|
|
if (err)
|
|
return (err);
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
err = bus_generic_deactivate_resource(dev, child, type, rid, r);
|
|
return (err);
|
|
}
|
|
|
|
int
|
|
pcic_setup_intr(device_t dev, device_t child, struct resource *irq,
|
|
int flags, driver_intr_t *intr, void *arg, void **cookiep)
|
|
{
|
|
struct pccard_devinfo *devi = device_get_ivars(child);
|
|
int err;
|
|
|
|
if (((1 << rman_get_start(irq)) & PCIC_INT_MASK_ALLOWED) == 0) {
|
|
device_printf(dev, "Hardware does not support irq %ld.\n",
|
|
rman_get_start(irq));
|
|
return (EINVAL);
|
|
}
|
|
|
|
err = bus_generic_setup_intr(dev, child, irq, flags, intr, arg,
|
|
cookiep);
|
|
if (err == 0)
|
|
pcic_mapirq(devi->slt, rman_get_start(irq));
|
|
else
|
|
device_printf(dev, "Error %d irq %ld\n", err,
|
|
rman_get_start(irq));
|
|
return (err);
|
|
}
|
|
|
|
int
|
|
pcic_teardown_intr(device_t dev, device_t child, struct resource *irq,
|
|
void *cookie)
|
|
{
|
|
struct pccard_devinfo *devi = device_get_ivars(child);
|
|
|
|
pcic_mapirq(devi->slt, 0);
|
|
return (bus_generic_teardown_intr(dev, child, irq, cookie));
|
|
}
|
|
|
|
int
|
|
pcic_set_res_flags(device_t bus, device_t child, int restype, int rid,
|
|
u_long value)
|
|
{
|
|
struct pccard_devinfo *devi = device_get_ivars(child);
|
|
int err = 0;
|
|
|
|
switch (restype) {
|
|
case SYS_RES_MEMORY: {
|
|
struct mem_desc *mp = &devi->slt->mem[rid];
|
|
switch (value) {
|
|
case PCCARD_A_MEM_COM:
|
|
mp->flags &= ~MDF_ATTR;
|
|
break;
|
|
case PCCARD_A_MEM_ATTR:
|
|
mp->flags |= MDF_ATTR;
|
|
break;
|
|
case PCCARD_A_MEM_8BIT:
|
|
mp->flags &= ~MDF_16BITS;
|
|
break;
|
|
case PCCARD_A_MEM_16BIT:
|
|
mp->flags |= MDF_16BITS;
|
|
break;
|
|
}
|
|
err = pcic_memory(devi->slt, rid);
|
|
break;
|
|
}
|
|
default:
|
|
err = EOPNOTSUPP;
|
|
}
|
|
return (err);
|
|
}
|
|
|
|
int
|
|
pcic_get_res_flags(device_t bus, device_t child, int restype, int rid,
|
|
u_long *value)
|
|
{
|
|
struct pccard_devinfo *devi = device_get_ivars(child);
|
|
int err = 0;
|
|
|
|
if (value == 0)
|
|
return (ENOMEM);
|
|
|
|
switch (restype) {
|
|
case SYS_RES_IOPORT: {
|
|
struct io_desc *ip = &devi->slt->io[rid];
|
|
*value = ip->flags;
|
|
break;
|
|
}
|
|
case SYS_RES_MEMORY: {
|
|
struct mem_desc *mp = &devi->slt->mem[rid];
|
|
*value = mp->flags;
|
|
break;
|
|
}
|
|
default:
|
|
err = EOPNOTSUPP;
|
|
}
|
|
return (err);
|
|
}
|
|
|
|
int
|
|
pcic_set_memory_offset(device_t bus, device_t child, int rid, u_int32_t offset
|
|
#if __FreeBSD_version >= 500000
|
|
,u_int32_t *deltap
|
|
#endif
|
|
)
|
|
{
|
|
struct pccard_devinfo *devi = device_get_ivars(child);
|
|
struct mem_desc *mp = &devi->slt->mem[rid];
|
|
|
|
mp->card = offset;
|
|
#if __FreeBSD_version >= 500000
|
|
if (deltap)
|
|
*deltap = 0; /* XXX BAD XXX */
|
|
#endif
|
|
return (pcic_memory(devi->slt, rid));
|
|
}
|
|
|
|
int
|
|
pcic_get_memory_offset(device_t bus, device_t child, int rid, u_int32_t *offset)
|
|
{
|
|
struct pccard_devinfo *devi = device_get_ivars(child);
|
|
struct mem_desc *mp = &devi->slt->mem[rid];
|
|
|
|
if (offset == 0)
|
|
return (ENOMEM);
|
|
|
|
*offset = mp->card;
|
|
|
|
return (0);
|
|
}
|
|
|
|
struct resource *
|
|
pcic_alloc_resource(device_t dev, device_t child, int type, int *rid,
|
|
u_long start, u_long end, u_long count, u_int flags)
|
|
{
|
|
struct pcic_softc *sc = device_get_softc(dev);
|
|
|
|
/*
|
|
* If we're routing via pci, we can share.
|
|
*/
|
|
if (sc->func_route == pcic_iw_pci && type == SYS_RES_IRQ) {
|
|
if (bootverbose)
|
|
device_printf(child, "Forcing IRQ to %d\n", sc->irq);
|
|
start = end = sc->irq;
|
|
flags |= RF_SHAREABLE;
|
|
}
|
|
|
|
return (bus_generic_alloc_resource(dev, child, type, rid, start, end,
|
|
count, flags));
|
|
}
|
|
|
|
void
|
|
pcic_do_stat_delta(struct pcic_slot *sp)
|
|
{
|
|
if ((sp->getb(sp, PCIC_STATUS) & PCIC_CD) != PCIC_CD)
|
|
pccard_event(sp->slt, card_removed);
|
|
else
|
|
pccard_event(sp->slt, card_inserted);
|
|
}
|
|
/*
|
|
* Wrapper function for pcicintr so that signatures match.
|
|
*/
|
|
void
|
|
pcic_isa_intr(void *arg)
|
|
{
|
|
pcic_isa_intr1(arg);
|
|
}
|
|
|
|
/*
|
|
* PCIC timer. If the controller doesn't have a free IRQ to use
|
|
* or if interrupt steering doesn't work, poll the controller for
|
|
* insertion/removal events.
|
|
*/
|
|
void
|
|
pcic_timeout(void *chan)
|
|
{
|
|
struct pcic_softc *sc = (struct pcic_softc *) chan;
|
|
|
|
if (pcic_isa_intr1(chan) != 0) {
|
|
device_printf(sc->dev,
|
|
"Static bug detected, ignoring hardware.");
|
|
sc->slot_poll = 0;
|
|
return;
|
|
}
|
|
sc->timeout_ch = timeout(sc->slot_poll, chan, hz/2);
|
|
}
|
|
|
|
/*
|
|
* PCIC Interrupt handler.
|
|
* Check each slot in turn, and read the card status change
|
|
* register. If this is non-zero, then a change has occurred
|
|
* on this card, so send an event to the main code.
|
|
*/
|
|
int
|
|
pcic_isa_intr1(void *arg)
|
|
{
|
|
int slot, s;
|
|
u_int8_t chg;
|
|
struct pcic_softc *sc = (struct pcic_softc *) arg;
|
|
struct pcic_slot *sp = &sc->slots[0];
|
|
|
|
s = splhigh();
|
|
for (slot = 0; slot < PCIC_CARD_SLOTS; slot++, sp++) {
|
|
if (sp->slt == NULL)
|
|
continue;
|
|
if ((chg = sp->getb(sp, PCIC_STAT_CHG)) != 0) {
|
|
/*
|
|
* if chg is 0xff, then we know that we've hit
|
|
* the famous "static bug" for some desktop
|
|
* pcmcia cards. This is caused by static
|
|
* discharge frying the poor card's mind and
|
|
* it starts return 0xff forever. We return
|
|
* an error and stop polling the card. When
|
|
* we're interrupt based, we never see this.
|
|
* The card just goes away silently.
|
|
*/
|
|
if (chg == 0xff) {
|
|
splx(s);
|
|
return (EIO);
|
|
}
|
|
if (chg & PCIC_CDTCH)
|
|
pcic_do_stat_delta(sp);
|
|
}
|
|
}
|
|
splx(s);
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
pcic_isa_mapirq(struct pcic_slot *sp, int irq)
|
|
{
|
|
irq = host_irq_to_pcic(irq);
|
|
sp->sc->chip->func_intr_way(sp, pcic_iw_isa);
|
|
if (irq == 0)
|
|
pcic_clrb(sp, PCIC_INT_GEN, 0xF);
|
|
else
|
|
sp->putb(sp, PCIC_INT_GEN,
|
|
(sp->getb(sp, PCIC_INT_GEN) & 0xF0) | irq);
|
|
return (0);
|
|
}
|