NetBSD/sys/arch/sh3/dev/shpcic.c

1099 lines
25 KiB
C

/* $NetBSD: shpcic.c,v 1.4 2000/06/29 07:44:02 mrg Exp $ */
#define SHPCICDEBUG
/*
* 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 <uvm/uvm_extern.h>
#include <machine/bus.h>
#include <machine/intr.h>
#include <dev/pcmcia/pcmciareg.h>
#include <dev/pcmcia/pcmciavar.h>
#include <sh3/dev/shpcicreg.h>
#include <sh3/dev/shpcicvar.h>
#include "locators.h"
#ifdef SHPCICDEBUG
int shpcic_debug = 0;
#define DPRINTF(arg) if (shpcic_debug) printf arg;
#else
#define DPRINTF(arg)
#endif
#define PCIC_VENDOR_UNKNOWN 0
#define PCIC_VENDOR_HITACHI 1
/*
* Individual drivers will allocate their own memory and io regions. Memory
* regions must be a multiple of 4k, aligned on a 4k boundary.
*/
#define SHPCIC_MEM_ALIGN SHPCIC_MEM_PAGESIZE
void shpcic_attach_socket __P((struct shpcic_handle *));
void shpcic_init_socket __P((struct shpcic_handle *));
int shpcic_submatch __P((struct device *, struct cfdata *, void *));
int shpcic_print __P((void *arg, const char *pnp));
int shpcic_intr_socket __P((struct shpcic_handle *));
void shpcic_attach_card __P((struct shpcic_handle *));
void shpcic_detach_card __P((struct shpcic_handle *, int));
void shpcic_deactivate_card __P((struct shpcic_handle *));
void shpcic_chip_do_mem_map __P((struct shpcic_handle *, int));
void shpcic_chip_do_io_map __P((struct shpcic_handle *, int));
void shpcic_create_event_thread __P((void *));
void shpcic_event_thread __P((void *));
void shpcic_queue_event __P((struct shpcic_handle *, int));
/* static void shpcic_wait_ready __P((struct shpcic_handle *)); */
int
shpcic_ident_ok(ident)
int ident;
{
/* this is very empirical and heuristic */
if ((ident == 0) || (ident == 0xff) || (ident & SHPCIC_IDENT_ZERO))
return (0);
if ((ident & SHPCIC_IDENT_IFTYPE_MASK) != SHPCIC_IDENT_IFTYPE_MEM_AND_IO) {
#ifdef DIAGNOSTIC
printf("shpcic: does not support memory and I/O cards, "
"ignored (ident=%0x)\n", ident);
#endif
return (0);
}
return (1);
}
int
shpcic_vendor(h)
struct shpcic_handle *h;
{
return (PCIC_VENDOR_HITACHI);
}
char *
shpcic_vendor_to_string(vendor)
int vendor;
{
switch (vendor) {
case PCIC_VENDOR_HITACHI:
return ("Hitachi SH");
}
return ("Unknown controller");
}
void
shpcic_attach(sc)
struct shpcic_softc *sc;
{
int vendor, count, i;
/* now check for each controller/socket */
/*
* this could be done with a loop, but it would violate the
* abstraction
*/
count = 0;
#if 0
DPRINTF(("shpcic ident regs:"));
#endif
sc->handle[0].sc = sc;
sc->handle[0].sock = C0SA;
sc->handle[0].flags = SHPCIC_FLAG_SOCKETP;
sc->handle[0].laststate = SHPCIC_LASTSTATE_EMPTY;
count++;
sc->handle[1].sc = sc;
sc->handle[1].sock = C0SB;
sc->handle[1].flags = 0;
sc->handle[1].laststate = SHPCIC_LASTSTATE_EMPTY;
count++;
sc->handle[2].sc = sc;
sc->handle[2].sock = C1SA;
sc->handle[2].flags = 0;
sc->handle[2].laststate = SHPCIC_LASTSTATE_EMPTY;
sc->handle[3].sc = sc;
sc->handle[3].sock = C1SB;
sc->handle[3].flags = 0;
sc->handle[3].laststate = SHPCIC_LASTSTATE_EMPTY;
if (count == 0)
panic("shpcic_attach: attach found no sockets");
/* establish the interrupt */
/* XXX block interrupts? */
for (i = 0; i < SHPCIC_NSLOTS; i++) {
/*
* this should work, but w/o it, setting tty flags hangs at
* boot time.
*/
if (sc->handle[i].flags & SHPCIC_FLAG_SOCKETP)
{
SIMPLEQ_INIT(&sc->handle[i].events);
#if 0
shpcic_write(&sc->handle[i], SHPCIC_CSC_INTR, 0);
shpcic_read(&sc->handle[i], SHPCIC_CSC);
#endif
}
}
if ((sc->handle[0].flags & SHPCIC_FLAG_SOCKETP) ||
(sc->handle[1].flags & SHPCIC_FLAG_SOCKETP)) {
vendor = shpcic_vendor(&sc->handle[0]);
printf("%s: controller 0 (%s) has ", sc->dev.dv_xname,
shpcic_vendor_to_string(vendor));
if ((sc->handle[0].flags & SHPCIC_FLAG_SOCKETP) &&
(sc->handle[1].flags & SHPCIC_FLAG_SOCKETP))
printf("sockets A and B\n");
else if (sc->handle[0].flags & SHPCIC_FLAG_SOCKETP)
printf("socket A only\n");
else
printf("socket B only\n");
if (sc->handle[0].flags & SHPCIC_FLAG_SOCKETP)
sc->handle[0].vendor = vendor;
if (sc->handle[1].flags & SHPCIC_FLAG_SOCKETP)
sc->handle[1].vendor = vendor;
}
}
void
shpcic_attach_sockets(sc)
struct shpcic_softc *sc;
{
int i;
for (i = 0; i < SHPCIC_NSLOTS; i++)
if (sc->handle[i].flags & SHPCIC_FLAG_SOCKETP)
shpcic_attach_socket(&sc->handle[i]);
}
void
shpcic_attach_socket(h)
struct shpcic_handle *h;
{
struct pcmciabus_attach_args paa;
/* 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) h->sc->pct;
paa.pch = (pcmcia_chipset_handle_t) h;
paa.iobase = h->sc->iobase;
paa.iosize = h->sc->iosize;
h->pcmcia = config_found_sm(&h->sc->dev, &paa, shpcic_print,
shpcic_submatch);
/* if there's actually a pcmcia device attached, initialize the slot */
if (h->pcmcia)
shpcic_init_socket(h);
}
void
shpcic_create_event_thread(arg)
void *arg;
{
struct shpcic_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("shpcic_create_event_thread: unknown pcic socket");
}
if (kthread_create1(shpcic_event_thread, h, &h->event_thread,
"%s,%s", h->sc->dev.dv_xname, cs)) {
printf("%s: unable to create event thread for sock 0x%02x\n",
h->sc->dev.dv_xname, h->sock);
panic("shpcic_create_event_thread");
}
}
void
shpcic_event_thread(arg)
void *arg;
{
struct shpcic_handle *h = arg;
struct shpcic_event *pe;
int s;
while (h->shutdown == 0) {
s = splhigh();
if ((pe = SIMPLEQ_FIRST(&h->events)) == NULL) {
splx(s);
(void) tsleep(&h->events, PWAIT, "shpcicev", 0);
continue;
} else {
splx(s);
/* sleep .25s to be enqueued chatterling interrupts */
(void) tsleep((caddr_t)shpcic_event_thread, PWAIT, "shpcicss", hz/4);
}
s = splhigh();
SIMPLEQ_REMOVE_HEAD(&h->events, pe, pe_q);
splx(s);
switch (pe->pe_type) {
case SHPCIC_EVENT_INSERTION:
s = splhigh();
while (1) {
struct shpcic_event *pe1, *pe2;
if ((pe1 = SIMPLEQ_FIRST(&h->events)) == NULL)
break;
if (pe1->pe_type != SHPCIC_EVENT_REMOVAL)
break;
if ((pe2 = SIMPLEQ_NEXT(pe1, pe_q)) == NULL)
break;
if (pe2->pe_type == SHPCIC_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->sc->dev.dv_xname));
shpcic_attach_card(h);
break;
case SHPCIC_EVENT_REMOVAL:
s = splhigh();
while (1) {
struct shpcic_event *pe1, *pe2;
if ((pe1 = SIMPLEQ_FIRST(&h->events)) == NULL)
break;
if (pe1->pe_type != SHPCIC_EVENT_INSERTION)
break;
if ((pe2 = SIMPLEQ_NEXT(pe1, pe_q)) == NULL)
break;
if (pe2->pe_type == SHPCIC_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->sc->dev.dv_xname));
shpcic_detach_card(h, DETACH_FORCE);
break;
default:
panic("shpcic_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(h->sc);
kthread_exit(0);
}
void
shpcic_init_socket(h)
struct shpcic_handle *h;
{
int reg;
/*
* queue creation of a kernel thread to handle insert/removal events.
*/
#ifdef DIAGNOSTIC
if (h->event_thread != NULL)
panic("shpcic_attach_socket: event thread");
#endif
kthread_create(shpcic_create_event_thread, h);
/* if there's a card there, then attach it. */
reg = shpcic_read(h, SHPCIC_IF_STATUS);
reg &= ~SHPCIC_IF_STATUS_BUSWIDTH; /* Set bus width to 16bit */
if ((reg & SHPCIC_IF_STATUS_CARDDETECT_MASK) ==
SHPCIC_IF_STATUS_CARDDETECT_PRESENT) {
int i;
/* reset the card */
shpcic_write(h, SHPCIC_IF_STATUS, reg|SHPCIC_IF_STATUS_RESET);
delay(1000); /* wait 1000 uSec */
shpcic_write(h, SHPCIC_IF_STATUS,
reg & ~SHPCIC_IF_STATUS_RESET);
for (i = 0; i < 10000; i++)
delay(1000); /* wait 1 mSec */
shpcic_attach_card(h);
h->laststate = SHPCIC_LASTSTATE_PRESENT;
} else {
h->laststate = SHPCIC_LASTSTATE_EMPTY;
}
}
int
shpcic_submatch(parent, cf, aux)
struct device *parent;
struct cfdata *cf;
void *aux;
{
struct pcmciabus_attach_args *paa = aux;
struct shpcic_handle *h = (struct shpcic_handle *) paa->pch;
switch (h->sock) {
case C0SA:
#ifdef TODO
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;
#endif
break;
case C0SB:
#ifdef TODO
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;
#endif
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
shpcic_print(arg, pnp)
void *arg;
const char *pnp;
{
struct pcmciabus_attach_args *paa = arg;
struct shpcic_handle *h = (struct shpcic_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
shpcic_intr(arg)
void *arg;
{
struct shpcic_softc *sc = arg;
int i, ret = 0;
DPRINTF(("%s: intr\n", sc->dev.dv_xname));
for (i = 0; i < SHPCIC_NSLOTS; i++)
if (sc->handle[i].flags & SHPCIC_FLAG_SOCKETP)
ret += shpcic_intr_socket(&sc->handle[i]);
return (ret ? 1 : 0);
}
int
shpcic_intr_socket(h)
struct shpcic_handle *h;
{
int cscreg;
cscreg = shpcic_read(h, SHPCIC_CSC);
cscreg &= (SHPCIC_CSC_GPI |
SHPCIC_CSC_CD |
SHPCIC_CSC_READY |
SHPCIC_CSC_BATTWARN |
SHPCIC_CSC_BATTDEAD);
if (cscreg & SHPCIC_CSC_GPI) {
DPRINTF(("%s: %02x GPI\n", h->sc->dev.dv_xname, h->sock));
}
if (cscreg & SHPCIC_CSC_CD) {
int statreg;
statreg = shpcic_read(h, SHPCIC_IF_STATUS);
DPRINTF(("%s: %02x CD %x\n", h->sc->dev.dv_xname, h->sock,
statreg));
if ((statreg & SHPCIC_IF_STATUS_CARDDETECT_MASK) ==
SHPCIC_IF_STATUS_CARDDETECT_PRESENT) {
if (h->laststate != SHPCIC_LASTSTATE_PRESENT) {
DPRINTF(("%s: enqueing INSERTION event\n",
h->sc->dev.dv_xname));
shpcic_queue_event(h, SHPCIC_EVENT_INSERTION);
}
h->laststate = SHPCIC_LASTSTATE_PRESENT;
} else {
if (h->laststate == SHPCIC_LASTSTATE_PRESENT) {
/* Deactivate the card now. */
DPRINTF(("%s: deactivating card\n",
h->sc->dev.dv_xname));
shpcic_deactivate_card(h);
DPRINTF(("%s: enqueing REMOVAL event\n",
h->sc->dev.dv_xname));
shpcic_queue_event(h, SHPCIC_EVENT_REMOVAL);
}
h->laststate = ((statreg & SHPCIC_IF_STATUS_CARDDETECT_MASK) == 0)
? SHPCIC_LASTSTATE_EMPTY : SHPCIC_LASTSTATE_HALF;
}
}
if (cscreg & SHPCIC_CSC_READY) {
DPRINTF(("%s: %02x READY\n", h->sc->dev.dv_xname, h->sock));
/* shouldn't happen */
}
if (cscreg & SHPCIC_CSC_BATTWARN) {
DPRINTF(("%s: %02x BATTWARN\n", h->sc->dev.dv_xname, h->sock));
}
if (cscreg & SHPCIC_CSC_BATTDEAD) {
DPRINTF(("%s: %02x BATTDEAD\n", h->sc->dev.dv_xname, h->sock));
}
return (cscreg ? 1 : 0);
}
void
shpcic_queue_event(h, event)
struct shpcic_handle *h;
int event;
{
struct shpcic_event *pe;
int s;
pe = malloc(sizeof(*pe), M_TEMP, M_NOWAIT);
if (pe == NULL)
panic("shpcic_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
shpcic_attach_card(h)
struct shpcic_handle *h;
{
if (!(h->flags & SHPCIC_FLAG_CARDP)) {
/* call the MI attach function */
pcmcia_card_attach(h->pcmcia);
h->flags |= SHPCIC_FLAG_CARDP;
} else {
DPRINTF(("shpcic_attach_card: already attached"));
}
}
void
shpcic_detach_card(h, flags)
struct shpcic_handle *h;
int flags; /* DETACH_* */
{
if (h->flags & SHPCIC_FLAG_CARDP) {
h->flags &= ~SHPCIC_FLAG_CARDP;
/* call the MI detach function */
pcmcia_card_detach(h->pcmcia, flags);
} else {
DPRINTF(("shpcic_detach_card: already detached"));
}
}
void
shpcic_deactivate_card(h)
struct shpcic_handle *h;
{
/* call the MI deactivate function */
pcmcia_card_deactivate(h->pcmcia);
#if 0
/* power down the socket */
shpcic_write(h, SHPCIC_PWRCTL, 0);
/* reset the socket */
shpcic_write(h, SHPCIC_INTR, 0);
#endif
}
int
shpcic_chip_mem_alloc(pch, size, pcmhp)
pcmcia_chipset_handle_t pch;
bus_size_t size;
struct pcmcia_mem_handle *pcmhp;
{
struct shpcic_handle *h = (struct shpcic_handle *) pch;
bus_space_handle_t memh = 0;
bus_addr_t addr;
bus_size_t sizepg;
int i, mask, mhandle;
/* out of sc->memh, allocate as many pages as necessary */
/* convert size to PCIC pages */
sizepg = (size + (SHPCIC_MEM_ALIGN - 1)) / SHPCIC_MEM_ALIGN;
if (sizepg > SHPCIC_MAX_MEM_PAGES)
return (1);
mask = (1 << sizepg) - 1;
addr = 0; /* XXX gcc -Wuninitialized */
mhandle = 0; /* XXX gcc -Wuninitialized */
for (i = 0; i <= SHPCIC_MAX_MEM_PAGES - sizepg; i++) {
if ((h->sc->subregionmask & (mask << i)) == (mask << i)) {
#if 0
if (bus_space_subregion(h->sc->memt, h->sc->memh,
i * SHPCIC_MEM_PAGESIZE,
sizepg * SHPCIC_MEM_PAGESIZE, &memh))
return (1);
#endif
memh = h->sc->memh;
mhandle = mask << i;
addr = h->sc->membase + (i * SHPCIC_MEM_PAGESIZE);
h->sc->subregionmask &= ~(mhandle);
pcmhp->memt = h->sc->memt;
pcmhp->memh = memh;
pcmhp->addr = addr;
pcmhp->size = size;
pcmhp->mhandle = mhandle;
pcmhp->realsize = sizepg * SHPCIC_MEM_PAGESIZE;
return (0);
}
}
return (1);
}
void
shpcic_chip_mem_free(pch, pcmhp)
pcmcia_chipset_handle_t pch;
struct pcmcia_mem_handle *pcmhp;
{
struct shpcic_handle *h = (struct shpcic_handle *) pch;
h->sc->subregionmask |= pcmhp->mhandle;
}
int
shpcic_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 shpcic_handle *h = (struct shpcic_handle *) pch;
bus_addr_t busaddr;
long card_offset;
int i, win;
win = -1;
for (i = 0; i < SHPCIC_WINS;
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 (h->sc->memt != pcmhp->memt)
panic("shpcic_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 = 0;
card_addr -= *offsetp;
DPRINTF(("shpcic_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;
if (kind == PCMCIA_MEM_ATTR) {
pcmhp->memh = h->sc->memh + card_addr;
} else {
pcmhp->memh = h->sc->memh + card_addr + SHPCIC_ATTRMEM_SIZE;
}
#if 0
shpcic_chip_do_mem_map(h, win);
#endif
return (0);
}
void
shpcic_chip_mem_unmap(pch, window)
pcmcia_chipset_handle_t pch;
int window;
{
struct shpcic_handle *h = (struct shpcic_handle *) pch;
if (window >= SHPCIC_WINS)
panic("shpcic_chip_mem_unmap: window out of range");
h->memalloc &= ~(1 << window);
}
int
shpcic_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 shpcic_handle *h = (struct shpcic_handle *) pch;
bus_space_tag_t iot;
bus_space_handle_t ioh;
bus_addr_t ioaddr;
int flags = 0;
/*
* Allocate some arbitrary I/O space.
*/
iot = h->sc->iot;
if (start) {
ioaddr = start;
if (bus_space_map(iot, start, size, 0, &ioh))
return (1);
DPRINTF(("shpcic_chip_io_alloc map port %lx+%lx\n",
(u_long) ioaddr, (u_long) size));
} else {
flags |= PCMCIA_IO_ALLOCATED;
if (bus_space_alloc(iot, h->sc->iobase,
h->sc->iobase + h->sc->iosize, size, align, 0, 0,
&ioaddr, &ioh))
return (1);
DPRINTF(("shpcic_chip_io_alloc alloc port %lx+%lx\n",
(u_long) ioaddr, (u_long) size));
}
pcihp->iot = iot;
pcihp->ioh = ioh + h->sc->memh + SHPCIC_ATTRMEM_SIZE;;
pcihp->addr = ioaddr;
pcihp->size = size;
pcihp->flags = flags;
return (0);
}
void
shpcic_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);
}
int
shpcic_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 shpcic_handle *h = (struct shpcic_handle *) pch;
bus_addr_t ioaddr = pcihp->addr + offset;
int i, win;
#ifdef SHPCICDEBUG
static char *width_names[] = { "auto", "io8", "io16" };
#endif
int reg;
/* XXX Sanity check offset/size. */
#ifdef MMEYE
/* I/O width is hardwired to 16bit mode on mmeye. */
width = PCMCIA_WIDTH_IO16;
#endif
win = -1;
for (i = 0; i < SHPCIC_IOWINS; 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 (h->sc->iot != pcihp->iot)
panic("shpcic_chip_io_map iot is bogus");
DPRINTF(("shpcic_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;
pcihp->ioh = h->sc->memh + SHPCIC_ATTRMEM_SIZE;
if (width == PCMCIA_WIDTH_IO8) { /* IO8 */
reg = shpcic_read(h, SHPCIC_IF_STATUS);
reg |= SHPCIC_IF_STATUS_BUSWIDTH; /* Set bus width to 8bit */
shpcic_write(h, SHPCIC_IF_STATUS, reg);
}
#if 0
shpcic_chip_do_io_map(h, win);
#endif
return (0);
}
void
shpcic_chip_io_unmap(pch, window)
pcmcia_chipset_handle_t pch;
int window;
{
struct shpcic_handle *h = (struct shpcic_handle *) pch;
if (window >= SHPCIC_IOWINS)
panic("shpcic_chip_io_unmap: window out of range");
h->ioalloc &= ~(1 << window);
}
#if 0
static void
shpcic_wait_ready(h)
struct shpcic_handle *h;
{
int i;
for (i = 0; i < 10000; i++) {
if (shpcic_read(h, SHPCIC_IF_STATUS) & SHPCIC_IF_STATUS_READY)
return;
delay(500);
#ifdef SHPCICDEBUG
if (shpcic_debug) {
if ((i>5000) && (i%100 == 99))
printf(".");
}
#endif
}
#ifdef DIAGNOSTIC
printf("shpcic_wait_ready: ready never happened, status = %02x\n",
shpcic_read(h, SHPCIC_IF_STATUS));
#endif
}
#endif
void
shpcic_chip_socket_enable(pch)
pcmcia_chipset_handle_t pch;
{
#if 0
struct shpcic_handle *h = (struct shpcic_handle *) pch;
int cardtype, reg, win;
/* this bit is mostly stolen from shpcic_attach_card */
/* power down the socket to reset it, clear the card reset pin */
shpcic_write(h, SHPCIC_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(h->sc->iot, h->sc->ioh, SHPCIC_REG_INDEX, 0x0e);
bus_space_write_1(h->sc->iot, h->sc->ioh, SHPCIC_REG_INDEX, 0x37);
printf("prcr = %02x\n", shpcic_read(h, 0x02));
printf("cvsr = %02x\n", shpcic_read(h, 0x2f));
printf("DANGER WILL ROBINSON! Changing voltage select!\n");
shpcic_write(h, 0x2f, shpcic_read(h, 0x2f) & ~0x03);
printf("cvsr = %02x\n", shpcic_read(h, 0x2f));
#endif
/* power up the socket */
shpcic_write(h, SHPCIC_PWRCTL, SHPCIC_PWRCTL_DISABLE_RESETDRV
| SHPCIC_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);
shpcic_write(h, SHPCIC_PWRCTL, SHPCIC_PWRCTL_DISABLE_RESETDRV | SHPCIC_PWRCTL_OE
| SHPCIC_PWRCTL_PWR_ENABLE);
shpcic_write(h, SHPCIC_INTR, 0);
/*
* hold RESET at least 10us.
*/
delay(10);
/* clear the reset flag */
shpcic_write(h, SHPCIC_INTR, SHPCIC_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 = shpcic_read(h, SHPCIC_IF_STATUS);
if (!(reg & SHPCIC_IF_STATUS_POWERACTIVE)) {
printf("shpcic_chip_socket_enable: status %x", reg);
}
#endif
shpcic_wait_ready(h);
/* zero out the address windows */
shpcic_write(h, SHPCIC_ADDRWIN_ENABLE, 0);
/* set the card type */
cardtype = pcmcia_card_gettype(h->pcmcia);
reg = shpcic_read(h, SHPCIC_INTR);
reg &= ~(SHPCIC_INTR_CARDTYPE_MASK | SHPCIC_INTR_IRQ_MASK | SHPCIC_INTR_ENABLE);
reg |= ((cardtype == PCMCIA_IFTYPE_IO) ?
SHPCIC_INTR_CARDTYPE_IO :
SHPCIC_INTR_CARDTYPE_MEM);
reg |= h->ih_irq;
shpcic_write(h, SHPCIC_INTR, reg);
DPRINTF(("%s: shpcic_chip_socket_enable %02x cardtype %s %02x\n",
h->sc->dev.dv_xname, h->sock,
((cardtype == PCMCIA_IFTYPE_IO) ? "io" : "mem"), reg));
/* reinstall all the memory and io mappings */
for (win = 0; win < SHPCIC_MEM_WINS; win++)
if (h->memalloc & (1 << win))
shpcic_chip_do_mem_map(h, win);
for (win = 0; win < SHPCIC_IO_WINS; win++)
if (h->ioalloc & (1 << win))
shpcic_chip_do_io_map(h, win);
#endif
}
void
shpcic_chip_socket_disable(pch)
pcmcia_chipset_handle_t pch;
{
#if 0
struct shpcic_handle *h = (struct shpcic_handle *) pch;
DPRINTF(("shpcic_chip_socket_disable\n"));
/* power down the socket */
shpcic_write(h, SHPCIC_PWRCTL, 0);
/*
* wait 300ms until power fails (Tpf).
*/
delay(300 * 1000);
#endif
}