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NetBSD/sys/dev/ic/i82365.c

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/* $NetBSD: i82365.c,v 1.27 2000/01/02 02:08:07 sommerfeld Exp $ */
#define PCICDEBUG
/*
* Copyright (c) 1997 Marc Horowitz. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Marc Horowitz.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/types.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/extent.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/kthread.h>
#include <vm/vm.h>
#include <machine/bus.h>
#include <machine/intr.h>
#include <dev/pcmcia/pcmciareg.h>
#include <dev/pcmcia/pcmciavar.h>
#include <dev/ic/i82365reg.h>
#include <dev/ic/i82365var.h>
#include "locators.h"
#ifdef PCICDEBUG
int pcic_debug = 0;
#define DPRINTF(arg) if (pcic_debug) printf arg;
#else
#define DPRINTF(arg)
#endif
#define PCIC_VENDOR_UNKNOWN 0
#define PCIC_VENDOR_I82365SLR0 1
#define PCIC_VENDOR_I82365SLR1 2
#define PCIC_VENDOR_CIRRUS_PD6710 3
#define PCIC_VENDOR_CIRRUS_PD672X 4
/*
* Individual drivers will allocate their own memory and io regions. Memory
* regions must be a multiple of 4k, aligned on a 4k boundary.
*/
#define PCIC_MEM_ALIGN PCIC_MEM_PAGESIZE
void pcic_attach_socket __P((struct pcic_handle *));
void pcic_init_socket __P((struct pcic_handle *));
int pcic_submatch __P((struct device *, struct cfdata *, void *));
int pcic_print __P((void *arg, const char *pnp));
int pcic_intr_socket __P((struct pcic_handle *));
void pcic_attach_card __P((struct pcic_handle *));
void pcic_detach_card __P((struct pcic_handle *, int));
void pcic_deactivate_card __P((struct pcic_handle *));
void pcic_chip_do_mem_map __P((struct pcic_handle *, int));
void pcic_chip_do_io_map __P((struct pcic_handle *, int));
void pcic_create_event_thread __P((void *));
void pcic_event_thread __P((void *));
void pcic_queue_event __P((struct pcic_handle *, int));
void pcic_power __P((int, void *));
static void pcic_wait_ready __P((struct pcic_handle *));
static u_int8_t st_pcic_read __P((struct pcic_handle *, int));
static void st_pcic_write __P((struct pcic_handle *, int, u_int8_t));
int
pcic_ident_ok(ident)
int ident;
{
/* this is very empirical and heuristic */
if ((ident == 0) || (ident == 0xff) || (ident & PCIC_IDENT_ZERO))
return (0);
if ((ident & PCIC_IDENT_IFTYPE_MASK) != PCIC_IDENT_IFTYPE_MEM_AND_IO) {
#ifdef DIAGNOSTIC
printf("pcic: does not support memory and I/O cards, "
"ignored (ident=%0x)\n", ident);
#endif
return (0);
}
return (1);
}
int
pcic_vendor(h)
struct pcic_handle *h;
{
int reg;
/*
* the chip_id of the cirrus toggles between 11 and 00 after a write.
* weird.
*/
pcic_write(h, PCIC_CIRRUS_CHIP_INFO, 0);
reg = pcic_read(h, -1);
if ((reg & PCIC_CIRRUS_CHIP_INFO_CHIP_ID) ==
PCIC_CIRRUS_CHIP_INFO_CHIP_ID) {
reg = pcic_read(h, -1);
if ((reg & PCIC_CIRRUS_CHIP_INFO_CHIP_ID) == 0) {
if (reg & PCIC_CIRRUS_CHIP_INFO_SLOTS)
return (PCIC_VENDOR_CIRRUS_PD672X);
else
return (PCIC_VENDOR_CIRRUS_PD6710);
}
}
reg = pcic_read(h, PCIC_IDENT);
if ((reg & PCIC_IDENT_REV_MASK) == PCIC_IDENT_REV_I82365SLR0)
return (PCIC_VENDOR_I82365SLR0);
else
return (PCIC_VENDOR_I82365SLR1);
return (PCIC_VENDOR_UNKNOWN);
}
char *
pcic_vendor_to_string(vendor)
int vendor;
{
switch (vendor) {
case PCIC_VENDOR_I82365SLR0:
return ("Intel 82365SL Revision 0");
case PCIC_VENDOR_I82365SLR1:
return ("Intel 82365SL Revision 1");
case PCIC_VENDOR_CIRRUS_PD6710:
return ("Cirrus PD6710");
case PCIC_VENDOR_CIRRUS_PD672X:
return ("Cirrus PD672X");
}
return ("Unknown controller");
}
void
pcic_attach(sc)
struct pcic_softc *sc;
{
int vendor, count, i, reg;
/* now check for each controller/socket */
/*
* this could be done with a loop, but it would violate the
* abstraction
*/
count = 0;
DPRINTF(("pcic ident regs:"));
sc->handle[0].ph_parent = (struct device *)sc;
sc->handle[0].sock = C0SA;
/* initialise pcic_read and pcic_write functions */
sc->handle[0].ph_read = st_pcic_read;
sc->handle[0].ph_write = st_pcic_write;
sc->handle[0].ph_bus_t = sc->iot;
sc->handle[0].ph_bus_h = sc->ioh;
if (pcic_ident_ok(reg = pcic_read(&sc->handle[0], PCIC_IDENT))) {
sc->handle[0].flags = PCIC_FLAG_SOCKETP;
count++;
} else {
sc->handle[0].flags = 0;
}
sc->handle[0].laststate = PCIC_LASTSTATE_EMPTY;
DPRINTF((" 0x%02x", reg));
sc->handle[1].ph_parent = (struct device *)sc;
sc->handle[1].sock = C0SB;
/* initialise pcic_read and pcic_write functions */
sc->handle[1].ph_read = st_pcic_read;
sc->handle[1].ph_write = st_pcic_write;
sc->handle[1].ph_bus_t = sc->iot;
sc->handle[1].ph_bus_h = sc->ioh;
if (pcic_ident_ok(reg = pcic_read(&sc->handle[1], PCIC_IDENT))) {
sc->handle[1].flags = PCIC_FLAG_SOCKETP;
count++;
} else {
sc->handle[1].flags = 0;
}
sc->handle[1].laststate = PCIC_LASTSTATE_EMPTY;
DPRINTF((" 0x%02x", reg));
/*
* The CL-PD6729 has only one controller and always returns 0
* if you try to read from the second one. Maybe pcic_ident_ok
* shouldn't accept 0?
*/
sc->handle[2].ph_parent = (struct device *)sc;
sc->handle[2].sock = C1SA;
/* initialise pcic_read and pcic_write functions */
sc->handle[2].ph_read = st_pcic_read;
sc->handle[2].ph_write = st_pcic_write;
sc->handle[2].ph_bus_t = sc->iot;
sc->handle[2].ph_bus_h = sc->ioh;
if (pcic_vendor(&sc->handle[0]) != PCIC_VENDOR_CIRRUS_PD672X ||
pcic_read(&sc->handle[2], PCIC_IDENT) != 0) {
if (pcic_ident_ok(reg = pcic_read(&sc->handle[2],
PCIC_IDENT))) {
sc->handle[2].flags = PCIC_FLAG_SOCKETP;
count++;
} else {
sc->handle[2].flags = 0;
}
sc->handle[2].laststate = PCIC_LASTSTATE_EMPTY;
DPRINTF((" 0x%02x", reg));
sc->handle[3].ph_parent = (struct device *)sc;
sc->handle[3].sock = C1SB;
/* initialise pcic_read and pcic_write functions */
sc->handle[3].ph_read = st_pcic_read;
sc->handle[3].ph_write = st_pcic_write;
sc->handle[3].ph_bus_t = sc->iot;
sc->handle[3].ph_bus_h = sc->ioh;
if (pcic_ident_ok(reg = pcic_read(&sc->handle[3],
PCIC_IDENT))) {
sc->handle[3].flags = PCIC_FLAG_SOCKETP;
count++;
} else {
sc->handle[3].flags = 0;
}
sc->handle[3].laststate = PCIC_LASTSTATE_EMPTY;
DPRINTF((" 0x%02x\n", reg));
} else {
sc->handle[2].flags = 0;
sc->handle[3].flags = 0;
}
if (count == 0)
panic("pcic_attach: attach found no sockets");
/* establish the interrupt */
/* XXX block interrupts? */
for (i = 0; i < PCIC_NSLOTS; i++) {
/*
* this should work, but w/o it, setting tty flags hangs at
* boot time.
*/
if (sc->handle[i].flags & PCIC_FLAG_SOCKETP)
{
SIMPLEQ_INIT(&sc->handle[i].events);
pcic_write(&sc->handle[i], PCIC_CSC_INTR, 0);
pcic_read(&sc->handle[i], PCIC_CSC);
}
}
if ((sc->handle[0].flags & PCIC_FLAG_SOCKETP) ||
(sc->handle[1].flags & PCIC_FLAG_SOCKETP)) {
vendor = pcic_vendor(&sc->handle[0]);
printf("%s: controller 0 (%s) has ", sc->dev.dv_xname,
pcic_vendor_to_string(vendor));
if ((sc->handle[0].flags & PCIC_FLAG_SOCKETP) &&
(sc->handle[1].flags & PCIC_FLAG_SOCKETP))
printf("sockets A and B\n");
else if (sc->handle[0].flags & PCIC_FLAG_SOCKETP)
printf("socket A only\n");
else
printf("socket B only\n");
if (sc->handle[0].flags & PCIC_FLAG_SOCKETP)
sc->handle[0].vendor = vendor;
if (sc->handle[1].flags & PCIC_FLAG_SOCKETP)
sc->handle[1].vendor = vendor;
}
if ((sc->handle[2].flags & PCIC_FLAG_SOCKETP) ||
(sc->handle[3].flags & PCIC_FLAG_SOCKETP)) {
vendor = pcic_vendor(&sc->handle[2]);
printf("%s: controller 1 (%s) has ", sc->dev.dv_xname,
pcic_vendor_to_string(vendor));
if ((sc->handle[2].flags & PCIC_FLAG_SOCKETP) &&
(sc->handle[3].flags & PCIC_FLAG_SOCKETP))
printf("sockets A and B\n");
else if (sc->handle[2].flags & PCIC_FLAG_SOCKETP)
printf("socket A only\n");
else
printf("socket B only\n");
if (sc->handle[2].flags & PCIC_FLAG_SOCKETP)
sc->handle[2].vendor = vendor;
if (sc->handle[3].flags & PCIC_FLAG_SOCKETP)
sc->handle[3].vendor = vendor;
}
}
void
pcic_attach_sockets(sc)
struct pcic_softc *sc;
{
int i;
for (i = 0; i < PCIC_NSLOTS; i++)
if (sc->handle[i].flags & PCIC_FLAG_SOCKETP)
pcic_attach_socket(&sc->handle[i]);
}
void
pcic_power (why, arg)
int why;
void *arg;
{
struct pcic_handle *h = (struct pcic_handle *)arg;
struct pcic_softc *sc = (struct pcic_softc *)(h->ph_parent);
if (h->flags & PCIC_FLAG_SOCKETP) {
if ((why == PWR_RESUME) &&
(pcic_read(h, PCIC_CSC_INTR) == 0)) {
#ifdef PCICDEBUG
char bitbuf[64];
#endif
pcic_write(h, PCIC_CSC_INTR,
(sc->irq << PCIC_CSC_INTR_IRQ_SHIFT) |
PCIC_CSC_INTR_CD_ENABLE);
DPRINTF(("%s: CSC_INTR was zero; reset to %s\n",
sc->dev.dv_xname,
bitmask_snprintf(pcic_read(h, PCIC_CSC_INTR),
PCIC_CSC_INTR_FORMAT,
bitbuf, sizeof(bitbuf))));
}
}
}
void
pcic_attach_socket(h)
struct pcic_handle *h;
{
struct pcmciabus_attach_args paa;
struct pcic_softc *sc = (struct pcic_softc *)(h->ph_parent);
/* initialize the rest of the handle */
h->shutdown = 0;
h->memalloc = 0;
h->ioalloc = 0;
h->ih_irq = 0;
/* now, config one pcmcia device per socket */
paa.paa_busname = "pcmcia";
paa.pct = (pcmcia_chipset_tag_t) sc->pct;
paa.pch = (pcmcia_chipset_handle_t) h;
paa.iobase = sc->iobase;
paa.iosize = sc->iosize;
h->pcmcia = config_found_sm(&sc->dev, &paa, pcic_print,
pcic_submatch);
/* if there's actually a pcmcia device attached, initialize the slot */
if (h->pcmcia)
pcic_init_socket(h);
}
void
pcic_create_event_thread(arg)
void *arg;
{
struct pcic_handle *h = arg;
const char *cs;
switch (h->sock) {
case C0SA:
cs = "0,0";
break;
case C0SB:
cs = "0,1";
break;
case C1SA:
cs = "1,0";
break;
case C1SB:
cs = "1,1";
break;
default:
panic("pcic_create_event_thread: unknown pcic socket");
}
if (kthread_create1(pcic_event_thread, h, &h->event_thread,
"%s,%s", h->ph_parent->dv_xname, cs)) {
printf("%s: unable to create event thread for sock 0x%02x\n",
h->ph_parent->dv_xname, h->sock);
panic("pcic_create_event_thread");
}
}
void
pcic_event_thread(arg)
void *arg;
{
struct pcic_handle *h = arg;
struct pcic_event *pe;
int s;
struct pcic_softc *sc = (struct pcic_softc *)(h->ph_parent);
while (h->shutdown == 0) {
s = splhigh();
if ((pe = SIMPLEQ_FIRST(&h->events)) == NULL) {
splx(s);
(void) tsleep(&h->events, PWAIT, "pcicev", 0);
continue;
} else {
splx(s);
/* sleep .25s to be enqueued chatterling interrupts */
(void) tsleep((caddr_t)pcic_event_thread, PWAIT, "pcicss", hz/4);
}
s = splhigh();
SIMPLEQ_REMOVE_HEAD(&h->events, pe, pe_q);
splx(s);
switch (pe->pe_type) {
case PCIC_EVENT_INSERTION:
s = splhigh();
while (1) {
struct pcic_event *pe1, *pe2;
if ((pe1 = SIMPLEQ_FIRST(&h->events)) == NULL)
break;
if (pe1->pe_type != PCIC_EVENT_REMOVAL)
break;
if ((pe2 = SIMPLEQ_NEXT(pe1, pe_q)) == NULL)
break;
if (pe2->pe_type == PCIC_EVENT_INSERTION) {
SIMPLEQ_REMOVE_HEAD(&h->events, pe1, pe_q);
free(pe1, M_TEMP);
SIMPLEQ_REMOVE_HEAD(&h->events, pe2, pe_q);
free(pe2, M_TEMP);
}
}
splx(s);
DPRINTF(("%s: insertion event\n", h->ph_parent->dv_xname));
pcic_attach_card(h);
break;
case PCIC_EVENT_REMOVAL:
s = splhigh();
while (1) {
struct pcic_event *pe1, *pe2;
if ((pe1 = SIMPLEQ_FIRST(&h->events)) == NULL)
break;
if (pe1->pe_type != PCIC_EVENT_INSERTION)
break;
if ((pe2 = SIMPLEQ_NEXT(pe1, pe_q)) == NULL)
break;
if (pe2->pe_type == PCIC_EVENT_REMOVAL) {
SIMPLEQ_REMOVE_HEAD(&h->events, pe1, pe_q);
free(pe1, M_TEMP);
SIMPLEQ_REMOVE_HEAD(&h->events, pe2, pe_q);
free(pe2, M_TEMP);
}
}
splx(s);
DPRINTF(("%s: removal event\n", h->ph_parent->dv_xname));
pcic_detach_card(h, DETACH_FORCE);
break;
default:
panic("pcic_event_thread: unknown event %d",
pe->pe_type);
}
free(pe, M_TEMP);
}
h->event_thread = NULL;
/* In case parent is waiting for us to exit. */
wakeup(sc);
kthread_exit(0);
}
void
pcic_init_socket(h)
struct pcic_handle *h;
{
int reg;
struct pcic_softc *sc = (struct pcic_softc *)(h->ph_parent);
/*
* queue creation of a kernel thread to handle insert/removal events.
*/
#ifdef DIAGNOSTIC
if (h->event_thread != NULL)
panic("pcic_attach_socket: event thread");
#endif
kthread_create(pcic_create_event_thread, h);
/* set up the card to interrupt on card detect */
pcic_write(h, PCIC_CSC_INTR, (sc->irq << PCIC_CSC_INTR_IRQ_SHIFT) |
PCIC_CSC_INTR_CD_ENABLE);
pcic_write(h, PCIC_INTR, 0);
pcic_read(h, PCIC_CSC);
/*
* Set up a powerhook to ensure it continues to interrupt on
* card detect even after suspend.
* (this works around a bug seen in suspend-to-disk on the
* Sony VAIO Z505; on resume, the CSC_INTR state is not preserved).
*/
powerhook_establish(pcic_power, h);
/* unsleep the cirrus controller */
if ((h->vendor == PCIC_VENDOR_CIRRUS_PD6710) ||
(h->vendor == PCIC_VENDOR_CIRRUS_PD672X)) {
reg = pcic_read(h, PCIC_CIRRUS_MISC_CTL_2);
if (reg & PCIC_CIRRUS_MISC_CTL_2_SUSPEND) {
DPRINTF(("%s: socket %02x was suspended\n",
h->ph_parent->dv_xname, h->sock));
reg &= ~PCIC_CIRRUS_MISC_CTL_2_SUSPEND;
pcic_write(h, PCIC_CIRRUS_MISC_CTL_2, reg);
}
}
/* if there's a card there, then attach it. */
reg = pcic_read(h, PCIC_IF_STATUS);
if ((reg & PCIC_IF_STATUS_CARDDETECT_MASK) ==
PCIC_IF_STATUS_CARDDETECT_PRESENT) {
pcic_attach_card(h);
h->laststate = PCIC_LASTSTATE_PRESENT;
} else {
h->laststate = PCIC_LASTSTATE_EMPTY;
}
}
int
pcic_submatch(parent, cf, aux)
struct device *parent;
struct cfdata *cf;
void *aux;
{
struct pcmciabus_attach_args *paa = aux;
struct pcic_handle *h = (struct pcic_handle *) paa->pch;
switch (h->sock) {
case C0SA:
if (cf->cf_loc[PCMCIABUSCF_CONTROLLER] !=
PCMCIABUSCF_CONTROLLER_DEFAULT &&
cf->cf_loc[PCMCIABUSCF_CONTROLLER] != 0)
return 0;
if (cf->cf_loc[PCMCIABUSCF_SOCKET] !=
PCMCIABUSCF_SOCKET_DEFAULT &&
cf->cf_loc[PCMCIABUSCF_SOCKET] != 0)
return 0;
break;
case C0SB:
if (cf->cf_loc[PCMCIABUSCF_CONTROLLER] !=
PCMCIABUSCF_CONTROLLER_DEFAULT &&
cf->cf_loc[PCMCIABUSCF_CONTROLLER] != 0)
return 0;
if (cf->cf_loc[PCMCIABUSCF_SOCKET] !=
PCMCIABUSCF_SOCKET_DEFAULT &&
cf->cf_loc[PCMCIABUSCF_SOCKET] != 1)
return 0;
break;
case C1SA:
if (cf->cf_loc[PCMCIABUSCF_CONTROLLER] !=
PCMCIABUSCF_CONTROLLER_DEFAULT &&
cf->cf_loc[PCMCIABUSCF_CONTROLLER] != 1)
return 0;
if (cf->cf_loc[PCMCIABUSCF_SOCKET] !=
PCMCIABUSCF_SOCKET_DEFAULT &&
cf->cf_loc[PCMCIABUSCF_SOCKET] != 0)
return 0;
break;
case C1SB:
if (cf->cf_loc[PCMCIABUSCF_CONTROLLER] !=
PCMCIABUSCF_CONTROLLER_DEFAULT &&
cf->cf_loc[PCMCIABUSCF_CONTROLLER] != 1)
return 0;
if (cf->cf_loc[PCMCIABUSCF_SOCKET] !=
PCMCIABUSCF_SOCKET_DEFAULT &&
cf->cf_loc[PCMCIABUSCF_SOCKET] != 1)
return 0;
break;
default:
panic("unknown pcic socket");
}
return ((*cf->cf_attach->ca_match)(parent, cf, aux));
}
int
pcic_print(arg, pnp)
void *arg;
const char *pnp;
{
struct pcmciabus_attach_args *paa = arg;
struct pcic_handle *h = (struct pcic_handle *) paa->pch;
/* Only "pcmcia"s can attach to "pcic"s... easy. */
if (pnp)
printf("pcmcia at %s", pnp);
switch (h->sock) {
case C0SA:
printf(" controller 0 socket 0");
break;
case C0SB:
printf(" controller 0 socket 1");
break;
case C1SA:
printf(" controller 1 socket 0");
break;
case C1SB:
printf(" controller 1 socket 1");
break;
default:
panic("unknown pcic socket");
}
return (UNCONF);
}
int
pcic_intr(arg)
void *arg;
{
struct pcic_softc *sc = arg;
int i, ret = 0;
DPRINTF(("%s: intr\n", sc->dev.dv_xname));
for (i = 0; i < PCIC_NSLOTS; i++)
if (sc->handle[i].flags & PCIC_FLAG_SOCKETP)
ret += pcic_intr_socket(&sc->handle[i]);
return (ret ? 1 : 0);
}
int
pcic_intr_socket(h)
struct pcic_handle *h;
{
int cscreg;
cscreg = pcic_read(h, PCIC_CSC);
cscreg &= (PCIC_CSC_GPI |
PCIC_CSC_CD |
PCIC_CSC_READY |
PCIC_CSC_BATTWARN |
PCIC_CSC_BATTDEAD);
if (cscreg & PCIC_CSC_GPI) {
DPRINTF(("%s: %02x GPI\n", h->ph_parent->dv_xname, h->sock));
}
if (cscreg & PCIC_CSC_CD) {
int statreg;
statreg = pcic_read(h, PCIC_IF_STATUS);
DPRINTF(("%s: %02x CD %x\n", h->ph_parent->dv_xname, h->sock,
statreg));
if ((statreg & PCIC_IF_STATUS_CARDDETECT_MASK) ==
PCIC_IF_STATUS_CARDDETECT_PRESENT) {
if (h->laststate != PCIC_LASTSTATE_PRESENT) {
DPRINTF(("%s: enqueing INSERTION event\n",
h->ph_parent->dv_xname));
pcic_queue_event(h, PCIC_EVENT_INSERTION);
}
h->laststate = PCIC_LASTSTATE_PRESENT;
} else {
if (h->laststate == PCIC_LASTSTATE_PRESENT) {
/* Deactivate the card now. */
DPRINTF(("%s: deactivating card\n",
h->ph_parent->dv_xname));
pcic_deactivate_card(h);
DPRINTF(("%s: enqueing REMOVAL event\n",
h->ph_parent->dv_xname));
pcic_queue_event(h, PCIC_EVENT_REMOVAL);
}
h->laststate = ((statreg & PCIC_IF_STATUS_CARDDETECT_MASK) == 0)
? PCIC_LASTSTATE_EMPTY : PCIC_LASTSTATE_HALF;
}
}
if (cscreg & PCIC_CSC_READY) {
DPRINTF(("%s: %02x READY\n", h->ph_parent->dv_xname, h->sock));
/* shouldn't happen */
}
if (cscreg & PCIC_CSC_BATTWARN) {
DPRINTF(("%s: %02x BATTWARN\n", h->ph_parent->dv_xname, h->sock));
}
if (cscreg & PCIC_CSC_BATTDEAD) {
DPRINTF(("%s: %02x BATTDEAD\n", h->ph_parent->dv_xname, h->sock));
}
return (cscreg ? 1 : 0);
}
void
pcic_queue_event(h, event)
struct pcic_handle *h;
int event;
{
struct pcic_event *pe;
int s;
pe = malloc(sizeof(*pe), M_TEMP, M_NOWAIT);
if (pe == NULL)
panic("pcic_queue_event: can't allocate event");
pe->pe_type = event;
s = splhigh();
SIMPLEQ_INSERT_TAIL(&h->events, pe, pe_q);
splx(s);
wakeup(&h->events);
}
void
pcic_attach_card(h)
struct pcic_handle *h;
{
if (!(h->flags & PCIC_FLAG_CARDP)) {
/* call the MI attach function */
pcmcia_card_attach(h->pcmcia);
h->flags |= PCIC_FLAG_CARDP;
} else {
DPRINTF(("pcic_attach_card: already attached"));
}
}
void
pcic_detach_card(h, flags)
struct pcic_handle *h;
int flags; /* DETACH_* */
{
if (h->flags & PCIC_FLAG_CARDP) {
h->flags &= ~PCIC_FLAG_CARDP;
/* call the MI detach function */
pcmcia_card_detach(h->pcmcia, flags);
} else {
DPRINTF(("pcic_detach_card: already detached"));
}
}
void
pcic_deactivate_card(h)
struct pcic_handle *h;
{
/* call the MI deactivate function */
pcmcia_card_deactivate(h->pcmcia);
/* power down the socket */
pcic_write(h, PCIC_PWRCTL, 0);
/* reset the socket */
pcic_write(h, PCIC_INTR, 0);
}
int
pcic_chip_mem_alloc(pch, size, pcmhp)
pcmcia_chipset_handle_t pch;
bus_size_t size;
struct pcmcia_mem_handle *pcmhp;
{
struct pcic_handle *h = (struct pcic_handle *) pch;
bus_space_handle_t memh;
bus_addr_t addr;
bus_size_t sizepg;
int i, mask, mhandle;
struct pcic_softc *sc = (struct pcic_softc *)(h->ph_parent);
/* out of sc->memh, allocate as many pages as necessary */
/* convert size to PCIC pages */
sizepg = (size + (PCIC_MEM_ALIGN - 1)) / PCIC_MEM_ALIGN;
if (sizepg > PCIC_MAX_MEM_PAGES)
return (1);
mask = (1 << sizepg) - 1;
addr = 0; /* XXX gcc -Wuninitialized */
mhandle = 0; /* XXX gcc -Wuninitialized */
for (i = 0; i <= PCIC_MAX_MEM_PAGES - sizepg; i++) {
if ((sc->subregionmask & (mask << i)) == (mask << i)) {
if (bus_space_subregion(sc->memt, sc->memh,
i * PCIC_MEM_PAGESIZE,
sizepg * PCIC_MEM_PAGESIZE, &memh))
return (1);
mhandle = mask << i;
addr = sc->membase + (i * PCIC_MEM_PAGESIZE);
sc->subregionmask &= ~(mhandle);
pcmhp->memt = sc->memt;
pcmhp->memh = memh;
pcmhp->addr = addr;
pcmhp->size = size;
pcmhp->mhandle = mhandle;
pcmhp->realsize = sizepg * PCIC_MEM_PAGESIZE;
return (0);
}
}
return (1);
}
void
pcic_chip_mem_free(pch, pcmhp)
pcmcia_chipset_handle_t pch;
struct pcmcia_mem_handle *pcmhp;
{
struct pcic_handle *h = (struct pcic_handle *) pch;
struct pcic_softc *sc = (struct pcic_softc *)(h->ph_parent);
sc->subregionmask |= pcmhp->mhandle;
}
static struct mem_map_index_st {
int sysmem_start_lsb;
int sysmem_start_msb;
int sysmem_stop_lsb;
int sysmem_stop_msb;
int cardmem_lsb;
int cardmem_msb;
int memenable;
} mem_map_index[] = {
{
PCIC_SYSMEM_ADDR0_START_LSB,
PCIC_SYSMEM_ADDR0_START_MSB,
PCIC_SYSMEM_ADDR0_STOP_LSB,
PCIC_SYSMEM_ADDR0_STOP_MSB,
PCIC_CARDMEM_ADDR0_LSB,
PCIC_CARDMEM_ADDR0_MSB,
PCIC_ADDRWIN_ENABLE_MEM0,
},
{
PCIC_SYSMEM_ADDR1_START_LSB,
PCIC_SYSMEM_ADDR1_START_MSB,
PCIC_SYSMEM_ADDR1_STOP_LSB,
PCIC_SYSMEM_ADDR1_STOP_MSB,
PCIC_CARDMEM_ADDR1_LSB,
PCIC_CARDMEM_ADDR1_MSB,
PCIC_ADDRWIN_ENABLE_MEM1,
},
{
PCIC_SYSMEM_ADDR2_START_LSB,
PCIC_SYSMEM_ADDR2_START_MSB,
PCIC_SYSMEM_ADDR2_STOP_LSB,
PCIC_SYSMEM_ADDR2_STOP_MSB,
PCIC_CARDMEM_ADDR2_LSB,
PCIC_CARDMEM_ADDR2_MSB,
PCIC_ADDRWIN_ENABLE_MEM2,
},
{
PCIC_SYSMEM_ADDR3_START_LSB,
PCIC_SYSMEM_ADDR3_START_MSB,
PCIC_SYSMEM_ADDR3_STOP_LSB,
PCIC_SYSMEM_ADDR3_STOP_MSB,
PCIC_CARDMEM_ADDR3_LSB,
PCIC_CARDMEM_ADDR3_MSB,
PCIC_ADDRWIN_ENABLE_MEM3,
},
{
PCIC_SYSMEM_ADDR4_START_LSB,
PCIC_SYSMEM_ADDR4_START_MSB,
PCIC_SYSMEM_ADDR4_STOP_LSB,
PCIC_SYSMEM_ADDR4_STOP_MSB,
PCIC_CARDMEM_ADDR4_LSB,
PCIC_CARDMEM_ADDR4_MSB,
PCIC_ADDRWIN_ENABLE_MEM4,
},
};
void
pcic_chip_do_mem_map(h, win)
struct pcic_handle *h;
int win;
{
int reg;
pcic_write(h, mem_map_index[win].sysmem_start_lsb,
(h->mem[win].addr >> PCIC_SYSMEM_ADDRX_SHIFT) & 0xff);
pcic_write(h, mem_map_index[win].sysmem_start_msb,
((h->mem[win].addr >> (PCIC_SYSMEM_ADDRX_SHIFT + 8)) &
PCIC_SYSMEM_ADDRX_START_MSB_ADDR_MASK));
#if 0
/* XXX do I want 16 bit all the time? */
PCIC_SYSMEM_ADDRX_START_MSB_DATASIZE_16BIT;
#endif
pcic_write(h, mem_map_index[win].sysmem_stop_lsb,
((h->mem[win].addr + h->mem[win].size) >>
PCIC_SYSMEM_ADDRX_SHIFT) & 0xff);
pcic_write(h, mem_map_index[win].sysmem_stop_msb,
(((h->mem[win].addr + h->mem[win].size) >>
(PCIC_SYSMEM_ADDRX_SHIFT + 8)) &
PCIC_SYSMEM_ADDRX_STOP_MSB_ADDR_MASK) |
PCIC_SYSMEM_ADDRX_STOP_MSB_WAIT2);
pcic_write(h, mem_map_index[win].cardmem_lsb,
(h->mem[win].offset >> PCIC_CARDMEM_ADDRX_SHIFT) & 0xff);
pcic_write(h, mem_map_index[win].cardmem_msb,
((h->mem[win].offset >> (PCIC_CARDMEM_ADDRX_SHIFT + 8)) &
PCIC_CARDMEM_ADDRX_MSB_ADDR_MASK) |
((h->mem[win].kind == PCMCIA_MEM_ATTR) ?
PCIC_CARDMEM_ADDRX_MSB_REGACTIVE_ATTR : 0));
reg = pcic_read(h, PCIC_ADDRWIN_ENABLE);
reg |= (mem_map_index[win].memenable | PCIC_ADDRWIN_ENABLE_MEMCS16);
pcic_write(h, PCIC_ADDRWIN_ENABLE, reg);
delay(100);
#ifdef PCICDEBUG
{
int r1, r2, r3, r4, r5, r6;
r1 = pcic_read(h, mem_map_index[win].sysmem_start_msb);
r2 = pcic_read(h, mem_map_index[win].sysmem_start_lsb);
r3 = pcic_read(h, mem_map_index[win].sysmem_stop_msb);
r4 = pcic_read(h, mem_map_index[win].sysmem_stop_lsb);
r5 = pcic_read(h, mem_map_index[win].cardmem_msb);
r6 = pcic_read(h, mem_map_index[win].cardmem_lsb);
DPRINTF(("pcic_chip_do_mem_map window %d: %02x%02x %02x%02x "
"%02x%02x\n", win, r1, r2, r3, r4, r5, r6));
}
#endif
}
int
pcic_chip_mem_map(pch, kind, card_addr, size, pcmhp, offsetp, windowp)
pcmcia_chipset_handle_t pch;
int kind;
bus_addr_t card_addr;
bus_size_t size;
struct pcmcia_mem_handle *pcmhp;
bus_addr_t *offsetp;
int *windowp;
{
struct pcic_handle *h = (struct pcic_handle *) pch;
bus_addr_t busaddr;
long card_offset;
int i, win;
struct pcic_softc *sc = (struct pcic_softc *)(h->ph_parent);
win = -1;
for (i = 0; i < (sizeof(mem_map_index) / sizeof(mem_map_index[0]));
i++) {
if ((h->memalloc & (1 << i)) == 0) {
win = i;
h->memalloc |= (1 << i);
break;
}
}
if (win == -1)
return (1);
*windowp = win;
/* XXX this is pretty gross */
if (sc->memt != pcmhp->memt)
panic("pcic_chip_mem_map memt is bogus");
busaddr = pcmhp->addr;
/*
* compute the address offset to the pcmcia address space for the
* pcic. this is intentionally signed. The masks and shifts below
* will cause TRT to happen in the pcic registers. Deal with making
* sure the address is aligned, and return the alignment offset.
*/
*offsetp = card_addr % PCIC_MEM_ALIGN;
card_addr -= *offsetp;
DPRINTF(("pcic_chip_mem_map window %d bus %lx+%lx+%lx at card addr "
"%lx\n", win, (u_long) busaddr, (u_long) * offsetp, (u_long) size,
(u_long) card_addr));
/*
* include the offset in the size, and decrement size by one, since
* the hw wants start/stop
*/
size += *offsetp - 1;
card_offset = (((long) card_addr) - ((long) busaddr));
h->mem[win].addr = busaddr;
h->mem[win].size = size;
h->mem[win].offset = card_offset;
h->mem[win].kind = kind;
pcic_chip_do_mem_map(h, win);
return (0);
}
void
pcic_chip_mem_unmap(pch, window)
pcmcia_chipset_handle_t pch;
int window;
{
struct pcic_handle *h = (struct pcic_handle *) pch;
int reg;
if (window >= (sizeof(mem_map_index) / sizeof(mem_map_index[0])))
panic("pcic_chip_mem_unmap: window out of range");
reg = pcic_read(h, PCIC_ADDRWIN_ENABLE);
reg &= ~mem_map_index[window].memenable;
pcic_write(h, PCIC_ADDRWIN_ENABLE, reg);
h->memalloc &= ~(1 << window);
}
int
pcic_chip_io_alloc(pch, start, size, align, pcihp)
pcmcia_chipset_handle_t pch;
bus_addr_t start;
bus_size_t size;
bus_size_t align;
struct pcmcia_io_handle *pcihp;
{
struct pcic_handle *h = (struct pcic_handle *) pch;
bus_space_tag_t iot;
bus_space_handle_t ioh;
bus_addr_t ioaddr;
int flags = 0;
struct pcic_softc *sc = (struct pcic_softc *)(h->ph_parent);
/*
* Allocate some arbitrary I/O space.
*/
iot = sc->iot;
if (start) {
ioaddr = start;
if (bus_space_map(iot, start, size, 0, &ioh))
return (1);
DPRINTF(("pcic_chip_io_alloc map port %lx+%lx\n",
(u_long) ioaddr, (u_long) size));
} else {
flags |= PCMCIA_IO_ALLOCATED;
if (bus_space_alloc(iot, sc->iobase,
sc->iobase + sc->iosize, size, align, 0, 0,
&ioaddr, &ioh))
return (1);
DPRINTF(("pcic_chip_io_alloc alloc port %lx+%lx\n",
(u_long) ioaddr, (u_long) size));
}
pcihp->iot = iot;
pcihp->ioh = ioh;
pcihp->addr = ioaddr;
pcihp->size = size;
pcihp->flags = flags;
return (0);
}
void
pcic_chip_io_free(pch, pcihp)
pcmcia_chipset_handle_t pch;
struct pcmcia_io_handle *pcihp;
{
bus_space_tag_t iot = pcihp->iot;
bus_space_handle_t ioh = pcihp->ioh;
bus_size_t size = pcihp->size;
if (pcihp->flags & PCMCIA_IO_ALLOCATED)
bus_space_free(iot, ioh, size);
else
bus_space_unmap(iot, ioh, size);
}
static struct io_map_index_st {
int start_lsb;
int start_msb;
int stop_lsb;
int stop_msb;
int ioenable;
int ioctlmask;
int ioctlbits[3]; /* indexed by PCMCIA_WIDTH_* */
} io_map_index[] = {
{
PCIC_IOADDR0_START_LSB,
PCIC_IOADDR0_START_MSB,
PCIC_IOADDR0_STOP_LSB,
PCIC_IOADDR0_STOP_MSB,
PCIC_ADDRWIN_ENABLE_IO0,
PCIC_IOCTL_IO0_WAITSTATE | PCIC_IOCTL_IO0_ZEROWAIT |
PCIC_IOCTL_IO0_IOCS16SRC_MASK | PCIC_IOCTL_IO0_DATASIZE_MASK,
{
PCIC_IOCTL_IO0_IOCS16SRC_CARD,
PCIC_IOCTL_IO0_IOCS16SRC_DATASIZE |
PCIC_IOCTL_IO0_DATASIZE_8BIT,
PCIC_IOCTL_IO0_IOCS16SRC_DATASIZE |
PCIC_IOCTL_IO0_DATASIZE_16BIT,
},
},
{
PCIC_IOADDR1_START_LSB,
PCIC_IOADDR1_START_MSB,
PCIC_IOADDR1_STOP_LSB,
PCIC_IOADDR1_STOP_MSB,
PCIC_ADDRWIN_ENABLE_IO1,
PCIC_IOCTL_IO1_WAITSTATE | PCIC_IOCTL_IO1_ZEROWAIT |
PCIC_IOCTL_IO1_IOCS16SRC_MASK | PCIC_IOCTL_IO1_DATASIZE_MASK,
{
PCIC_IOCTL_IO1_IOCS16SRC_CARD,
PCIC_IOCTL_IO1_IOCS16SRC_DATASIZE |
PCIC_IOCTL_IO1_DATASIZE_8BIT,
PCIC_IOCTL_IO1_IOCS16SRC_DATASIZE |
PCIC_IOCTL_IO1_DATASIZE_16BIT,
},
},
};
void
pcic_chip_do_io_map(h, win)
struct pcic_handle *h;
int win;
{
int reg;
DPRINTF(("pcic_chip_do_io_map win %d addr %lx size %lx width %d\n",
win, (long) h->io[win].addr, (long) h->io[win].size,
h->io[win].width * 8));
pcic_write(h, io_map_index[win].start_lsb, h->io[win].addr & 0xff);
pcic_write(h, io_map_index[win].start_msb,
(h->io[win].addr >> 8) & 0xff);
pcic_write(h, io_map_index[win].stop_lsb,
(h->io[win].addr + h->io[win].size - 1) & 0xff);
pcic_write(h, io_map_index[win].stop_msb,
((h->io[win].addr + h->io[win].size - 1) >> 8) & 0xff);
reg = pcic_read(h, PCIC_IOCTL);
reg &= ~io_map_index[win].ioctlmask;
reg |= io_map_index[win].ioctlbits[h->io[win].width];
pcic_write(h, PCIC_IOCTL, reg);
reg = pcic_read(h, PCIC_ADDRWIN_ENABLE);
reg |= io_map_index[win].ioenable;
pcic_write(h, PCIC_ADDRWIN_ENABLE, reg);
}
int
pcic_chip_io_map(pch, width, offset, size, pcihp, windowp)
pcmcia_chipset_handle_t pch;
int width;
bus_addr_t offset;
bus_size_t size;
struct pcmcia_io_handle *pcihp;
int *windowp;
{
struct pcic_handle *h = (struct pcic_handle *) pch;
bus_addr_t ioaddr = pcihp->addr + offset;
int i, win;
#ifdef PCICDEBUG
static char *width_names[] = { "auto", "io8", "io16" };
#endif
struct pcic_softc *sc = (struct pcic_softc *)(h->ph_parent);
/* XXX Sanity check offset/size. */
win = -1;
for (i = 0; i < (sizeof(io_map_index) / sizeof(io_map_index[0])); i++) {
if ((h->ioalloc & (1 << i)) == 0) {
win = i;
h->ioalloc |= (1 << i);
break;
}
}
if (win == -1)
return (1);
*windowp = win;
/* XXX this is pretty gross */
if (sc->iot != pcihp->iot)
panic("pcic_chip_io_map iot is bogus");
DPRINTF(("pcic_chip_io_map window %d %s port %lx+%lx\n",
win, width_names[width], (u_long) ioaddr, (u_long) size));
/* XXX wtf is this doing here? */
printf(" port 0x%lx", (u_long) ioaddr);
if (size > 1)
printf("-0x%lx", (u_long) ioaddr + (u_long) size - 1);
h->io[win].addr = ioaddr;
h->io[win].size = size;
h->io[win].width = width;
pcic_chip_do_io_map(h, win);
return (0);
}
void
pcic_chip_io_unmap(pch, window)
pcmcia_chipset_handle_t pch;
int window;
{
struct pcic_handle *h = (struct pcic_handle *) pch;
int reg;
if (window >= (sizeof(io_map_index) / sizeof(io_map_index[0])))
panic("pcic_chip_io_unmap: window out of range");
reg = pcic_read(h, PCIC_ADDRWIN_ENABLE);
reg &= ~io_map_index[window].ioenable;
pcic_write(h, PCIC_ADDRWIN_ENABLE, reg);
h->ioalloc &= ~(1 << window);
}
static void
pcic_wait_ready(h)
struct pcic_handle *h;
{
int i;
for (i = 0; i < 10000; i++) {
if (pcic_read(h, PCIC_IF_STATUS) & PCIC_IF_STATUS_READY)
return;
delay(500);
#ifdef PCICDEBUG
if (pcic_debug) {
if ((i>5000) && (i%100 == 99))
printf(".");
}
#endif
}
#ifdef DIAGNOSTIC
printf("pcic_wait_ready: ready never happened, status = %02x\n",
pcic_read(h, PCIC_IF_STATUS));
#endif
}
void
pcic_chip_socket_enable(pch)
pcmcia_chipset_handle_t pch;
{
struct pcic_handle *h = (struct pcic_handle *) pch;
int cardtype, reg, win;
/* this bit is mostly stolen from pcic_attach_card */
/* power down the socket to reset it, clear the card reset pin */
pcic_write(h, PCIC_PWRCTL, 0);
/*
* wait 300ms until power fails (Tpf). Then, wait 100ms since
* we are changing Vcc (Toff).
*/
delay((300 + 100) * 1000);
#ifdef VADEM_POWER_HACK
bus_space_write_1(sc->iot, sc->ioh, PCIC_REG_INDEX, 0x0e);
bus_space_write_1(sc->iot, sc->ioh, PCIC_REG_INDEX, 0x37);
printf("prcr = %02x\n", pcic_read(h, 0x02));
printf("cvsr = %02x\n", pcic_read(h, 0x2f));
printf("DANGER WILL ROBINSON! Changing voltage select!\n");
pcic_write(h, 0x2f, pcic_read(h, 0x2f) & ~0x03);
printf("cvsr = %02x\n", pcic_read(h, 0x2f));
#endif
/* power up the socket */
pcic_write(h, PCIC_PWRCTL, PCIC_PWRCTL_DISABLE_RESETDRV
| PCIC_PWRCTL_PWR_ENABLE);
/*
* wait 100ms until power raise (Tpr) and 20ms to become
* stable (Tsu(Vcc)).
*
* some machines require some more time to be settled
* (300ms is added here).
*/
delay((100 + 20 + 300) * 1000);
pcic_write(h, PCIC_PWRCTL, PCIC_PWRCTL_DISABLE_RESETDRV | PCIC_PWRCTL_OE
| PCIC_PWRCTL_PWR_ENABLE);
pcic_write(h, PCIC_INTR, 0);
/*
* hold RESET at least 10us.
*/
delay(10);
/* clear the reset flag */
pcic_write(h, PCIC_INTR, PCIC_INTR_RESET);
/* wait 20ms as per pc card standard (r2.01) section 4.3.6 */
delay(20000);
/* wait for the chip to finish initializing */
#ifdef DIAGNOSTIC
reg = pcic_read(h, PCIC_IF_STATUS);
if (!(reg & PCIC_IF_STATUS_POWERACTIVE)) {
printf("pcic_chip_socket_enable: status %x", reg);
}
#endif
pcic_wait_ready(h);
/* zero out the address windows */
pcic_write(h, PCIC_ADDRWIN_ENABLE, 0);
/* set the card type */
cardtype = pcmcia_card_gettype(h->pcmcia);
reg = pcic_read(h, PCIC_INTR);
reg &= ~(PCIC_INTR_CARDTYPE_MASK | PCIC_INTR_IRQ_MASK | PCIC_INTR_ENABLE);
reg |= ((cardtype == PCMCIA_IFTYPE_IO) ?
PCIC_INTR_CARDTYPE_IO :
PCIC_INTR_CARDTYPE_MEM);
reg |= h->ih_irq;
pcic_write(h, PCIC_INTR, reg);
DPRINTF(("%s: pcic_chip_socket_enable %02x cardtype %s %02x\n",
h->ph_parent->dv_xname, h->sock,
((cardtype == PCMCIA_IFTYPE_IO) ? "io" : "mem"), reg));
/* reinstall all the memory and io mappings */
for (win = 0; win < PCIC_MEM_WINS; win++)
if (h->memalloc & (1 << win))
pcic_chip_do_mem_map(h, win);
for (win = 0; win < PCIC_IO_WINS; win++)
if (h->ioalloc & (1 << win))
pcic_chip_do_io_map(h, win);
}
void
pcic_chip_socket_disable(pch)
pcmcia_chipset_handle_t pch;
{
struct pcic_handle *h = (struct pcic_handle *) pch;
DPRINTF(("pcic_chip_socket_disable\n"));
/* power down the socket */
pcic_write(h, PCIC_PWRCTL, 0);
/*
* wait 300ms until power fails (Tpf).
*/
delay(300 * 1000);
}
static u_int8_t
st_pcic_read(h, idx)
struct pcic_handle *h;
int idx;
{
if (idx != -1)
bus_space_write_1(h->ph_bus_t, h->ph_bus_h, PCIC_REG_INDEX,
h->sock + idx);
return bus_space_read_1(h->ph_bus_t, h->ph_bus_h, PCIC_REG_DATA);
}
static void
st_pcic_write(h, idx, data)
struct pcic_handle *h;
int idx;
u_int8_t data;
{
if (idx != -1)
bus_space_write_1(h->ph_bus_t, h->ph_bus_h, PCIC_REG_INDEX,
h->sock + idx);
bus_space_write_1(h->ph_bus_t, h->ph_bus_h, PCIC_REG_DATA, data);
}
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