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7722df0394
freebsd-dev/sys/dev/pccard/pccard.c
Peter Wemm 7722df0394 This is a bandaid for a problem that is not entirely fixed yet. 
The pccard_function_init() call creates a bunch of inactive resources
that are persistant and configured on demand.  When the child driver
"allocates" a resource it is connected up to one of these.  When the
child releases the resource, we should not delete our copy, just
deactivate it again.  Otherwise there is nothing to recreate it again
after several probe functions have run and done an alloc/release cycle.
INVARIANTS shows 0xdeadc0de without this.

More work is needed to do a sweep though the pccard_function_disable()
call to actually delete the resources for real.  Right now, we leak
memory on eject (at best), so Dont Do That(TM) yet.  This affects
16 bit pccards on a cardbus bridge only.  This will be fixed soon, but
for now it gets the cards working.

Reviewed by: imp
2001-01-07 21:32:05 +00:00

1133 lines
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/* $NetBSD: pcmcia.c,v 1.23 2000/07/28 19:17:02 drochner Exp $ */
/* $FreeBSD$ */
/*
* 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/param.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/module.h>
#include <sys/kernel.h>
#include <sys/queue.h>
#include <sys/types.h>
#include <sys/bus.h>
#include <machine/bus.h>
#include <sys/rman.h>
#include <machine/resource.h>
#include <dev/pccard/pccardreg.h>
#include <dev/pccard/pccardvar.h>
#include "power_if.h"
#include "card_if.h"
#define PCCARDDEBUG
#ifdef PCCARDDEBUG
int pccard_debug = 1;
#define DPRINTF(arg) if (pccard_debug) printf arg
#define DEVPRINTF(arg) if (pccard_debug) device_printf arg
#define PRVERBOSE(arg) printf arg
#define DEVPRVERBOSE(arg) device_printf arg
#else
#define DPRINTF(arg)
#define DEVPRINTF(arg)
#define PRVERBOSE(arg) if (bootverbose) printf arg
#define DEVPRVERBOSE(arg) if (bootverbose) device_printf arg
#endif
#ifdef PCCARDVERBOSE
int pccard_verbose = 1;
#else
int pccard_verbose = 0;
#endif
int pccard_print(void *, const char *);
int
pccard_ccr_read(pf, ccr)
struct pccard_function *pf;
int ccr;
{
return (bus_space_read_1(pf->pf_ccrt, pf->pf_ccrh,
pf->pf_ccr_offset + ccr));
}
void
pccard_ccr_write(pf, ccr, val)
struct pccard_function *pf;
int ccr;
int val;
{
if ((pf->ccr_mask) & (1 << (ccr / 2))) {
bus_space_write_1(pf->pf_ccrt, pf->pf_ccrh,
pf->pf_ccr_offset + ccr, val);
}
}
static int
pccard_attach_card(device_t dev)
{
struct pccard_softc *sc = PCCARD_SOFTC(dev);
struct pccard_function *pf;
struct pccard_ivar *ivar;
device_t child;
int attached;
sc->intr_handler_count = 0;
/*
* this is here so that when socket_enable calls gettype, trt happens
*/
STAILQ_INIT(&sc->card.pf_head);
DEVPRINTF((dev, "chip_socket_enable\n"));
POWER_ENABLE_SOCKET(device_get_parent(dev), dev);
DEVPRINTF((dev, "read_cis\n"));
pccard_read_cis(sc);
DEVPRINTF((dev, "check_cis_quirks\n"));
pccard_check_cis_quirks(dev);
/*
* bail now if the card has no functions, or if there was an error in
* the cis.
*/
if (sc->card.error) {
device_printf (dev, "CARD ERROR!\n");
return (1);
}
if (STAILQ_EMPTY(&sc->card.pf_head)) {
device_printf (dev, "Card has no functions!\n");
return (1);
}
if (1)
pccard_print_cis(dev);
attached = 0;
DEVPRINTF((dev, "functions scanning\n"));
STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
if (STAILQ_EMPTY(&pf->cfe_head))
continue;
pf->sc = sc;
pf->cfe = NULL;
pf->dev = NULL;
}
#if 0
DEVPRINTF((dev, "chip_socket_disable\n"));
POWER_DISABLE_SOCKET(device_get_parent(dev), dev);
#endif
STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
if (STAILQ_EMPTY(&pf->cfe_head))
continue;
/*
* In NetBSD, the drivers are responsible for activating
* each function of a card. I think that in FreeBSD we
* want to activate them enough for the usual bus_*_resource
* routines will do the right thing. This many mean a
* departure from the current NetBSD model.
*
* This could get really ugly for multifunction cards. But
* it might also just fall out of the FreeBSD resource model.
*
*/
ivar = malloc(sizeof(struct pccard_ivar), M_DEVBUF,
M_WAITOK | M_ZERO);
child = device_add_child(dev, NULL, -1);
device_set_ivars(child, ivar);
ivar->fcn = pf;
pf->dev = child;
/*
* XXX We might want to move the next two lines into
* XXX the pccard interface layer. For the moment, this
* XXX is OK, but some drivers want to pick the config
* XXX entry to use as well as some address tweaks (mostly
* XXX due to bugs in decode logic that makes some
* XXX addresses illegal or broken).
*/
pccard_function_init(pf);
if (pccard_function_enable(pf) == 0 &&
device_probe_and_attach(child) == 0) {
attached++;
DEVPRINTF((sc->dev, "function %d CCR at %d "
"offset %x: %x %x %x %x, %x %x %x %x, %x\n",
pf->number, pf->pf_ccr_window, pf->pf_ccr_offset,
pccard_ccr_read(pf, 0x00),
pccard_ccr_read(pf, 0x02), pccard_ccr_read(pf, 0x04),
pccard_ccr_read(pf, 0x06), pccard_ccr_read(pf, 0x0A),
pccard_ccr_read(pf, 0x0C), pccard_ccr_read(pf, 0x0E),
pccard_ccr_read(pf, 0x10), pccard_ccr_read(pf, 0x12)));
} else {
device_delete_child(dev, child);
}
}
return 0;
}
static int
pccard_detach_card(device_t dev, int flags)
{
struct pccard_softc *sc = PCCARD_SOFTC(dev);
struct pccard_function *pf;
/*
* We are running on either the PCCARD socket's event thread
* or in user context detaching a device by user request.
*/
STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
if (STAILQ_FIRST(&pf->cfe_head) == NULL)
continue;
pccard_function_disable(pf);
/*
* XXX must also actually delete resources created by
* pccard_function_init()
*/
if (pf->dev)
device_delete_child(dev, pf->dev);
}
return 0;
}
const struct pccard_product *
pccard_product_lookup(device_t dev, const struct pccard_product *tab,
size_t ent_size, pccard_product_match_fn matchfn)
{
const struct pccard_product *ent;
int matches;
u_int32_t fcn;
u_int32_t vendor;
u_int32_t prod;
char *vendorstr;
char *prodstr;
#ifdef DIAGNOSTIC
if (sizeof *ent > ent_size)
panic("pccard_product_lookup: bogus ent_size %ld",
(long) ent_size);
#endif
if (pccard_get_vendor(dev, &vendor))
return (NULL);
if (pccard_get_product(dev, &prod))
return (NULL);
if (pccard_get_function_number(dev, &fcn))
return (NULL);
if (pccard_get_vendor_str(dev, &vendorstr))
return (NULL);
if (pccard_get_product_str(dev, &prodstr))
return (NULL);
for (ent = tab; ent->pp_name != NULL;
ent = (const struct pccard_product *)
((const char *) ent + ent_size)) {
matches = 1;
if (matches && ent->pp_vendor != PCCARD_VENDOR_ANY &&
vendor != ent->pp_vendor)
matches = 0;
if (matches && ent->pp_product != PCCARD_PRODUCT_ANY &&
prod != ent->pp_product)
matches = 0;
if (matches && fcn != ent->pp_expfunc)
matches = 0;
if (matches && ent->pp_vendor_str &&
strcmp(ent->pp_vendor_str, vendorstr) != 0)
matches = 0;
if (matches && ent->pp_product_str &&
strcmp(ent->pp_product_str, prodstr) != 0)
matches = 0;
if (matchfn != NULL)
matches = (*matchfn)(dev, ent, matches);
if (matches)
return (ent);
}
return (NULL);
}
static int
pccard_card_gettype(device_t dev, int *type)
{
struct pccard_softc *sc = PCCARD_SOFTC(dev);
struct pccard_function *pf;
/*
* set the iftype to memory if this card has no functions (not yet
* probed), or only one function, and that is not initialized yet or
* that is memory.
*/
pf = STAILQ_FIRST(&sc->card.pf_head);
if (pf == NULL ||
(STAILQ_NEXT(pf, pf_list) == NULL &&
(pf->cfe == NULL || pf->cfe->iftype == PCCARD_IFTYPE_MEMORY)))
*type = PCCARD_IFTYPE_MEMORY;
else
*type = PCCARD_IFTYPE_IO;
return 0;
}
/*
* Initialize a PCCARD function. May be called as long as the function is
* disabled.
*/
void
pccard_function_init(struct pccard_function *pf)
{
struct pccard_config_entry *cfe;
int i;
struct pccard_ivar *devi = PCCARD_IVAR(pf->dev);
struct resource_list *rl = &devi->resources;
struct resource_list_entry *rle;
struct resource *r = 0;
device_t bus;
int start;
int end;
if (pf->pf_flags & PFF_ENABLED) {
printf("pccard_function_init: function is enabled");
return;
}
bus = device_get_parent(pf->dev);
/* Remember which configuration entry we are using. */
for (cfe = STAILQ_FIRST(&pf->cfe_head); cfe != NULL;
cfe = STAILQ_NEXT(cfe, cfe_list)) {
for (i = 0; i < cfe->num_iospace; i++)
cfe->iores[i] = NULL;
cfe->irqres = NULL;
for (i = 0; i < cfe->num_iospace; i++) {
start = cfe->iospace[i].start;
if (start)
end = start + cfe->iospace[i].length - 1;
else
end = ~0;
cfe->iorid[i] = i;
r = cfe->iores[i] = bus_alloc_resource(bus,
SYS_RES_IOPORT, &cfe->iorid[i], start, end,
cfe->iospace[i].length,
rman_make_alignment_flags(cfe->iospace[i].length));
if (cfe->iores[i] == 0)
goto not_this_one;
resource_list_add(rl, SYS_RES_IOPORT, cfe->iorid[i],
rman_get_start(r), rman_get_end(r),
cfe->iospace[i].length);
{
rle = resource_list_find(rl, SYS_RES_IOPORT,
cfe->iorid[i]);
rle->res = r;
}
}
if (cfe->num_memspace > 0) {
goto not_this_one;
}
if (cfe->irqmask) {
cfe->irqrid = 0;
r = cfe->irqres = bus_alloc_resource(bus, SYS_RES_IRQ,
&cfe->irqrid, 0, ~0, 1, 0);
if (cfe->irqres == 0)
goto not_this_one;
resource_list_add(rl, SYS_RES_IRQ, cfe->irqrid,
rman_get_start(r), rman_get_end(r), 1);
{
rle = resource_list_find(rl, SYS_RES_IRQ,
cfe->irqrid);
rle->res = r;
}
}
/* XXX Don't know how to deal with maxtwins */
/* If we get to here, we've allocated all we need */
pf->cfe = cfe;
break;
not_this_one:;
DEVPRVERBOSE((bus, "Allocation failed for cfe %d\n",
cfe->number));
/*
* Release resources that we partially allocated
* from this config entry.
*/
for (i = 0; i < cfe->num_iospace; i++) {
resource_list_delete(rl, SYS_RES_IOPORT, i);
if (cfe->iores[i])
bus_release_resource(bus, SYS_RES_IOPORT,
cfe->iorid[i], cfe->iores[i]);
cfe->iores[i] = NULL;
}
if (cfe->irqmask && cfe->irqres) {
resource_list_delete(rl, SYS_RES_IRQ, cfe->irqrid);
bus_release_resource(bus, SYS_RES_IRQ,
cfe->irqrid, cfe->irqres);
cfe->irqres = NULL;
}
}
}
/* Enable a PCCARD function */
int
pccard_function_enable(struct pccard_function *pf)
{
struct pccard_function *tmp;
int reg;
device_t dev = pf->sc->dev;
if (pf->cfe == NULL) {
DEVPRVERBOSE((dev, "No config entry could be allocated.\n"));
return ENOMEM;
}
/*
* Increase the reference count on the socket, enabling power, if
* necessary.
*/
if (pf->sc->sc_enabled_count++ == 0)
POWER_ENABLE_SOCKET(device_get_parent(dev), dev);
DEVPRINTF((dev, "++enabled_count = %d\n", pf->sc->sc_enabled_count));
if (pf->pf_flags & PFF_ENABLED) {
/*
* Don't do anything if we're already enabled.
*/
return (0);
}
/*
* it's possible for different functions' CCRs to be in the same
* underlying page. Check for that.
*/
STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) {
if ((tmp->pf_flags & PFF_ENABLED) &&
(pf->ccr_base >= (tmp->ccr_base - tmp->pf_ccr_offset)) &&
((pf->ccr_base + PCCARD_CCR_SIZE) <=
(tmp->ccr_base - tmp->pf_ccr_offset +
tmp->pf_ccr_realsize))) {
pf->pf_ccrt = tmp->pf_ccrt;
pf->pf_ccrh = tmp->pf_ccrh;
pf->pf_ccr_realsize = tmp->pf_ccr_realsize;
/*
* pf->pf_ccr_offset = (tmp->pf_ccr_offset -
* tmp->ccr_base) + pf->ccr_base;
*/
/* pf->pf_ccr_offset =
(tmp->pf_ccr_offset + pf->ccr_base) -
tmp->ccr_base; */
pf->pf_ccr_window = tmp->pf_ccr_window;
break;
}
}
if (tmp == NULL) {
pf->ccr_rid = 0;
pf->ccr_res = bus_alloc_resource(dev, SYS_RES_MEMORY,
&pf->ccr_rid, 0, ~0, 1 << 10, RF_ACTIVE);
if (!pf->ccr_res)
goto bad;
DEVPRINTF((dev, "ccr_res == %lx-%lx, base=%lx\n",
rman_get_start(pf->ccr_res), rman_get_end(pf->ccr_res),
pf->ccr_base));
CARD_SET_RES_FLAGS(device_get_parent(dev), dev, SYS_RES_MEMORY,
pf->ccr_rid, PCCARD_A_MEM_ATTR);
CARD_SET_MEMORY_OFFSET(device_get_parent(dev), dev,
pf->ccr_rid, pf->ccr_base, &pf->pf_ccr_offset);
pf->pf_ccrt = rman_get_bustag(pf->ccr_res);
pf->pf_ccrh = rman_get_bushandle(pf->ccr_res);
pf->pf_ccr_realsize = 1;
}
reg = (pf->cfe->number & PCCARD_CCR_OPTION_CFINDEX);
reg |= PCCARD_CCR_OPTION_LEVIREQ;
if (pccard_mfc(pf->sc)) {
reg |= (PCCARD_CCR_OPTION_FUNC_ENABLE |
PCCARD_CCR_OPTION_ADDR_DECODE);
/*
* XXX Need to enable PCCARD_CCR_OPTION_IRQ_ENABLE if
* XXX we have an interrupt handler, but we don't know that
* XXX at this point.
*/
/* reg |= PCCARD_CCR_OPTION_IREQ_ENABLE;*/
}
pccard_ccr_write(pf, PCCARD_CCR_OPTION, reg);
reg = 0;
if ((pf->cfe->flags & PCCARD_CFE_IO16) == 0)
reg |= PCCARD_CCR_STATUS_IOIS8;
if (pf->cfe->flags & PCCARD_CFE_AUDIO)
reg |= PCCARD_CCR_STATUS_AUDIO;
pccard_ccr_write(pf, PCCARD_CCR_STATUS, reg);
pccard_ccr_write(pf, PCCARD_CCR_SOCKETCOPY, 0);
if (pccard_mfc(pf->sc)) {
long tmp, iosize;
tmp = pf->pf_mfc_iomax - pf->pf_mfc_iobase;
/* round up to nearest (2^n)-1 */
for (iosize = 1; iosize < tmp; iosize <<= 1)
;
iosize--;
pccard_ccr_write(pf, PCCARD_CCR_IOBASE0,
pf->pf_mfc_iobase & 0xff);
pccard_ccr_write(pf, PCCARD_CCR_IOBASE1,
(pf->pf_mfc_iobase >> 8) & 0xff);
pccard_ccr_write(pf, PCCARD_CCR_IOBASE2, 0);
pccard_ccr_write(pf, PCCARD_CCR_IOBASE3, 0);
pccard_ccr_write(pf, PCCARD_CCR_IOSIZE, iosize);
}
#ifdef PCCARDDEBUG
if (pccard_debug) {
STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) {
device_printf(tmp->sc->dev,
"function %d CCR at %d offset %x: "
"%x %x %x %x, %x %x %x %x, %x\n",
tmp->number, tmp->pf_ccr_window,
tmp->pf_ccr_offset,
pccard_ccr_read(tmp, 0x00),
pccard_ccr_read(tmp, 0x02),
pccard_ccr_read(tmp, 0x04),
pccard_ccr_read(tmp, 0x06),
pccard_ccr_read(tmp, 0x0A),
pccard_ccr_read(tmp, 0x0C),
pccard_ccr_read(tmp, 0x0E),
pccard_ccr_read(tmp, 0x10),
pccard_ccr_read(tmp, 0x12));
}
}
#endif
pf->pf_flags |= PFF_ENABLED;
return (0);
bad:
/*
* Decrement the reference count, and power down the socket, if
* necessary.
*/
if (--pf->sc->sc_enabled_count == 0)
POWER_DISABLE_SOCKET(device_get_parent(dev), dev);
DEVPRINTF((dev, "bad --enabled_count = %d\n", pf->sc->sc_enabled_count));
return (1);
}
/* Disable PCCARD function. */
void
pccard_function_disable(struct pccard_function *pf)
{
struct pccard_function *tmp;
device_t dev = pf->sc->dev;
if (pf->cfe == NULL)
panic("pccard_function_disable: function not initialized");
if ((pf->pf_flags & PFF_ENABLED) == 0) {
/*
* Don't do anything if we're already disabled.
*/
return;
}
if (pf->intr_handler != NULL) {
pf->intr_handler = NULL;
pf->intr_handler_arg = NULL;
pf->intr_handler_cookie = NULL;
pccard_ccr_write(pf, PCCARD_CCR_OPTION,
pccard_ccr_read(pf, PCCARD_CCR_OPTION) &
~PCCARD_CCR_OPTION_IREQ_ENABLE);
if (pf->sc->intr_handler_count == 1) {
struct pccard_ivar *ivar = PCCARD_IVAR(pf->dev);
struct resource_list_entry *rle = NULL;
pf->sc->intr_handler_count--;
rle = resource_list_find(&ivar->resources, SYS_RES_IRQ,
0);
if (rle == NULL)
panic("No IRQ for pccard?");
bus_teardown_intr(dev, rle->res,
&pf->sc->intr_handler_count);
}
}
/*
* it's possible for different functions' CCRs to be in the same
* underlying page. Check for that. Note we mark us as disabled
* first to avoid matching ourself.
*/
pf->pf_flags &= ~PFF_ENABLED;
STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) {
if ((tmp->pf_flags & PFF_ENABLED) &&
(pf->ccr_base >= (tmp->ccr_base - tmp->pf_ccr_offset)) &&
((pf->ccr_base + PCCARD_CCR_SIZE) <=
(tmp->ccr_base - tmp->pf_ccr_offset + tmp->pf_ccr_realsize)))
break;
}
/* Not used by anyone else; unmap the CCR. */
if (tmp == NULL) {
bus_release_resource(dev, SYS_RES_MEMORY, pf->ccr_rid,
pf->ccr_res);
pf->ccr_res = NULL;
}
/*
* Decrement the reference count, and power down the socket, if
* necessary.
*/
if (--pf->sc->sc_enabled_count == 0)
POWER_DISABLE_SOCKET(device_get_parent(dev), dev);
DEVPRINTF((dev, "--enabled_count = %d\n", pf->sc->sc_enabled_count));
}
#if 0
/* XXX These functions are needed, but not like this XXX */
int
pccard_io_map(struct pccard_function *pf, int width, bus_addr_t offset,
bus_size_t size, struct pccard_io_handle *pcihp, int *windowp)
{
int reg;
if (pccard_chip_io_map(pf->sc->pct, pf->sc->pch, width, offset, size,
pcihp, windowp))
return (1);
/*
* XXX in the multifunction multi-iospace-per-function case, this
* needs to cooperate with io_alloc to make sure that the spaces
* don't overlap, and that the ccr's are set correctly
*/
if (pccard_mfc(pf->sc)) {
long tmp, iosize;
if (pf->pf_mfc_iomax == 0) {
pf->pf_mfc_iobase = pcihp->addr + offset;
pf->pf_mfc_iomax = pf->pf_mfc_iobase + size;
} else {
/* this makes the assumption that nothing overlaps */
if (pf->pf_mfc_iobase > pcihp->addr + offset)
pf->pf_mfc_iobase = pcihp->addr + offset;
if (pf->pf_mfc_iomax < pcihp->addr + offset + size)
pf->pf_mfc_iomax = pcihp->addr + offset + size;
}
tmp = pf->pf_mfc_iomax - pf->pf_mfc_iobase;
/* round up to nearest (2^n)-1 */
for (iosize = 1; iosize >= tmp; iosize <<= 1)
;
iosize--;
pccard_ccr_write(pf, PCCARD_CCR_IOBASE0,
pf->pf_mfc_iobase & 0xff);
pccard_ccr_write(pf, PCCARD_CCR_IOBASE1,
(pf->pf_mfc_iobase >> 8) & 0xff);
pccard_ccr_write(pf, PCCARD_CCR_IOBASE2, 0);
pccard_ccr_write(pf, PCCARD_CCR_IOBASE3, 0);
pccard_ccr_write(pf, PCCARD_CCR_IOSIZE, iosize);
reg = pccard_ccr_read(pf, PCCARD_CCR_OPTION);
reg |= PCCARD_CCR_OPTION_ADDR_DECODE;
pccard_ccr_write(pf, PCCARD_CCR_OPTION, reg);
}
return (0);
}
void
pccard_io_unmap(struct pccard_function *pf, int window)
{
pccard_chip_io_unmap(pf->sc->pct, pf->sc->pch, window);
/* XXX Anything for multi-function cards? */
}
#endif
/*
* simulate the old "probe" routine. In the new world order, the driver
* needs to grab devices while in the old they were assigned to the device by
* the pccardd process. These symbols are exported to the upper layers.
*/
int
pccard_compat_probe(device_t dev)
{
return (CARD_COMPAT_MATCH(dev));
}
int
pccard_compat_attach(device_t dev)
{
int err;
err = CARD_COMPAT_PROBE(dev);
if (err == 0)
err = CARD_COMPAT_ATTACH(dev);
return (err);
}
#define PCCARD_NPORT 2
#define PCCARD_NMEM 5
#define PCCARD_NIRQ 1
#define PCCARD_NDRQ 0
static int
pccard_add_children(device_t dev, int busno)
{
/* Call parent to scan for any current children */
return 0;
}
static int
pccard_probe(device_t dev)
{
device_set_desc(dev, "16-bit PCCard bus");
return pccard_add_children(dev, device_get_unit(dev));
}
static int
pccard_attach(device_t dev)
{
struct pccard_softc *sc = PCCARD_SOFTC(dev);
sc->dev = dev;
sc->sc_enabled_count = 0;
return bus_generic_attach(dev);
}
static void
pccard_print_resources(struct resource_list *rl, const char *name, int type,
int count, const char *format)
{
struct resource_list_entry *rle;
int printed;
int i;
printed = 0;
for (i = 0; i < count; i++) {
rle = resource_list_find(rl, type, i);
if (rle) {
if (printed == 0)
printf(" %s ", name);
else if (printed > 0)
printf(",");
printed++;
printf(format, rle->start);
if (rle->count > 1) {
printf("-");
printf(format, rle->start + rle->count - 1);
}
} else if (i > 3) {
/* check the first few regardless */
break;
}
}
}
static int
pccard_print_child(device_t dev, device_t child)
{
struct pccard_ivar *devi = PCCARD_IVAR(child);
struct resource_list *rl = &devi->resources;
int retval = 0;
retval += bus_print_child_header(dev, child);
retval += printf(" at");
if (devi) {
pccard_print_resources(rl, "port", SYS_RES_IOPORT,
PCCARD_NPORT, "%#lx");
pccard_print_resources(rl, "iomem", SYS_RES_MEMORY,
PCCARD_NMEM, "%#lx");
pccard_print_resources(rl, "irq", SYS_RES_IRQ, PCCARD_NIRQ,
"%ld");
pccard_print_resources(rl, "drq", SYS_RES_DRQ, PCCARD_NDRQ,
"%ld");
retval += printf(" function %d config %d", devi->fcn->number,
devi->fcn->cfe->number);
}
retval += bus_print_child_footer(dev, child);
return (retval);
}
static int
pccard_set_resource(device_t dev, device_t child, int type, int rid,
u_long start, u_long count)
{
struct pccard_ivar *devi = PCCARD_IVAR(child);
struct resource_list *rl = &devi->resources;
if (type != SYS_RES_IOPORT && type != SYS_RES_MEMORY
&& type != SYS_RES_IRQ && type != SYS_RES_DRQ)
return EINVAL;
if (rid < 0)
return EINVAL;
if (type == SYS_RES_IOPORT && rid >= PCCARD_NPORT)
return EINVAL;
if (type == SYS_RES_MEMORY && rid >= PCCARD_NMEM)
return EINVAL;
if (type == SYS_RES_IRQ && rid >= PCCARD_NIRQ)
return EINVAL;
if (type == SYS_RES_DRQ && rid >= PCCARD_NDRQ)
return EINVAL;
resource_list_add(rl, type, rid, start, start + count - 1, count);
return 0;
}
static int
pccard_get_resource(device_t dev, device_t child, int type, int rid,
u_long *startp, u_long *countp)
{
struct pccard_ivar *devi = PCCARD_IVAR(child);
struct resource_list *rl = &devi->resources;
struct resource_list_entry *rle;
rle = resource_list_find(rl, type, rid);
if (!rle)
return ENOENT;
if (startp)
*startp = rle->start;
if (countp)
*countp = rle->count;
return 0;
}
static void
pccard_delete_resource(device_t dev, device_t child, int type, int rid)
{
struct pccard_ivar *devi = PCCARD_IVAR(child);
struct resource_list *rl = &devi->resources;
resource_list_delete(rl, type, rid);
}
static int
pccard_set_res_flags(device_t dev, device_t child, int type, int rid,
u_int32_t flags)
{
return CARD_SET_RES_FLAGS(device_get_parent(dev), child, type,
rid, flags);
}
static int
pccard_set_memory_offset(device_t dev, device_t child, int rid,
u_int32_t offset, u_int32_t *deltap)
{
return CARD_SET_MEMORY_OFFSET(device_get_parent(dev), child, rid,
offset, deltap);
}
static int
pccard_read_ivar(device_t bus, device_t child, int which, u_char *result)
{
struct pccard_ivar *devi = PCCARD_IVAR(child);
struct pccard_function *func = devi->fcn;
struct pccard_softc *sc = PCCARD_SOFTC(bus);
/* PCCARD_IVAR_ETHADDR unhandled from oldcard */
switch (which) {
default:
case PCCARD_IVAR_ETHADDR:
return (ENOENT);
break;
case PCCARD_IVAR_VENDOR:
*(u_int32_t *) result = sc->card.manufacturer;
break;
case PCCARD_IVAR_PRODUCT:
*(u_int32_t *) result = sc->card.product;
break;
case PCCARD_IVAR_FUNCTION_NUMBER:
if (!func) {
device_printf(bus, "No function number, bug!\n");
return (ENOENT);
}
*(u_int32_t *) result = func->number;
break;
case PCCARD_IVAR_VENDOR_STR:
*(char **) result = sc->card.cis1_info[0];
break;
case PCCARD_IVAR_PRODUCT_STR:
*(char **) result = sc->card.cis1_info[1];
break;
case PCCARD_IVAR_CIS3_STR:
*(char **) result = sc->card.cis1_info[2];
break;
case PCCARD_IVAR_CIS4_STR:
*(char **) result = sc->card.cis1_info[2];
break;
}
return (0);
}
static void
pccard_driver_added(device_t dev, driver_t *driver)
{
/*
* XXX eventually we need to attach stuff when we know we
* XXX have kids. For now we do nothing because we normally
* XXX add children ourselves. We don't want to necessarily
* XXX force a reprobe.
*/
}
static struct resource *
pccard_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 resource_list_entry *rle = NULL;
/* XXX: This is an ugly way to fudge the resources. */
if (device_get_parent(child) == dev) {
struct pccard_ivar *devi = PCCARD_IVAR(child);
struct resource_list *rl = &devi->resources;
rle = resource_list_find(rl, type, *rid);
}
if (rle != NULL) {
if (flags & RF_ACTIVE)
bus_activate_resource(dev, type, rle->rid, rle->res);
return (rle->res);
}
return (bus_generic_alloc_resource(dev, child, type, rid, start,
end, count, flags));
}
static int
pccard_release_resource(device_t dev, device_t child, int type, int rid,
struct resource *r)
{
struct resource_list_entry *rle = NULL;
if (device_get_parent(child) == dev) {
struct pccard_ivar *devi = PCCARD_IVAR(child);
struct resource_list *rl = &devi->resources;
rle = resource_list_find(rl, type, rid);
}
if (rle != NULL) {
return bus_deactivate_resource(dev, type, rle->rid, rle->res);
}
return bus_generic_release_resource(dev, child, type, rid, r);
}
static int
pccard_activate_resource(device_t dev, device_t child, int type, int rid,
struct resource *r)
{
/* XXX need to write to the COR to activate this for mf cards */
struct resource_list_entry *rle = NULL;
if (device_get_parent(child) == dev) {
struct pccard_ivar *devi = PCCARD_IVAR(child);
struct resource_list *rl = &devi->resources;
rle = resource_list_find(rl, type, rid);
}
if (rle != NULL) {
return (bus_activate_resource(dev, type, rle->rid, rle->res));
}
return (bus_generic_activate_resource(dev, child, type, rid, r));
}
static int
pccard_deactivate_resource(device_t dev, device_t child, int type, int rid,
struct resource *r)
{
/* XXX need to write to the COR to deactivate this for mf cards */
struct resource_list_entry *rle = NULL;
if (device_get_parent(child) == dev) {
struct pccard_ivar *devi = PCCARD_IVAR(child);
struct resource_list *rl = &devi->resources;
rle = resource_list_find(rl, type, rid);
}
if (rle != NULL) {
return (bus_deactivate_resource(dev, type, rle->rid, rle->res));
}
return (bus_generic_deactivate_resource(dev, child, type, rid, r));
}
static void
pccard_child_detached(device_t parent, device_t dev)
{
struct pccard_ivar *ivar = PCCARD_IVAR(dev);
if (parent == device_get_parent(dev))
free(ivar, M_DEVBUF);
}
static void
pccard_intr(void *arg)
{
struct pccard_softc *sc = (struct pccard_softc *) arg;
struct pccard_function *pf;
STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
if (pf->intr_handler != NULL) {
int reg = pccard_ccr_read(pf, PCCARD_CCR_STATUS);
if (reg & PCCARD_CCR_STATUS_INTR) {
pccard_ccr_write(pf, PCCARD_CCR_STATUS,
reg & ~PCCARD_CCR_STATUS_INTR);
pf->intr_handler(pf->intr_handler_arg);
}
}
}
}
static int
pccard_setup_intr(device_t dev, device_t child, struct resource *irq,
int flags, driver_intr_t *intr, void *arg, void **cookiep)
{
struct pccard_ivar *ivar = PCCARD_IVAR(child);
struct pccard_function *func = ivar->fcn;
struct resource_list_entry *rle = NULL;
struct pccard_softc *sc = device_get_softc(dev);
if (func->intr_handler != NULL)
panic("Only one interrupt handler per function allowed\n");
rle = resource_list_find(&ivar->resources, SYS_RES_IRQ, 0);
if (rle == NULL || rle->res != irq)
panic("irq in setup_intr does not match allocated irq\n");
func->intr_handler = intr;
func->intr_handler_arg = arg;
func->intr_handler_cookie = *cookiep = func;
pccard_ccr_write(func, PCCARD_CCR_OPTION,
pccard_ccr_read(func, PCCARD_CCR_OPTION) |
PCCARD_CCR_OPTION_IREQ_ENABLE);
if (sc->intr_handler_count++ == 0) {
rle = resource_list_find(&ivar->resources, SYS_RES_IRQ, 0);
if (rle == NULL)
panic("No IRQ for pccard?");
bus_setup_intr(dev, rle->res, INTR_TYPE_TTY/* | INTR_FAST*/,
pccard_intr, sc, (void*)&sc->intr_handler_count);
}
return 0;
}
static int
pccard_teardown_intr(device_t dev, device_t child, struct resource *r,
void *cookie)
{
struct pccard_ivar *ivar = PCCARD_IVAR(child);
struct pccard_function *func = ivar->fcn;
struct pccard_softc *sc = device_get_softc(dev);
if (func->intr_handler_cookie != cookie)
panic("pccard teardown of unknown interrupt handler\n");
func->intr_handler = NULL;
func->intr_handler_arg = NULL;
func->intr_handler_cookie = NULL;
pccard_ccr_write(func, PCCARD_CCR_OPTION,
pccard_ccr_read(func, PCCARD_CCR_OPTION) &
~PCCARD_CCR_OPTION_IREQ_ENABLE);
if (--sc->intr_handler_count == 0) {
struct resource_list_entry *rle = NULL;
rle = resource_list_find(&ivar->resources, SYS_RES_IRQ, 0);
if (rle == NULL)
panic("No IRQ for pccard?");
bus_teardown_intr(dev, rle->res, &sc->intr_handler_count);
}
return 0;
}
static device_method_t pccard_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, pccard_probe),
DEVMETHOD(device_attach, pccard_attach),
DEVMETHOD(device_detach, bus_generic_detach),
DEVMETHOD(device_shutdown, bus_generic_shutdown),
DEVMETHOD(device_suspend, bus_generic_suspend),
DEVMETHOD(device_resume, bus_generic_resume),
/* Bus interface */
DEVMETHOD(bus_print_child, pccard_print_child),
DEVMETHOD(bus_driver_added, pccard_driver_added),
DEVMETHOD(bus_child_detached, pccard_child_detached),
DEVMETHOD(bus_alloc_resource, pccard_alloc_resource),
DEVMETHOD(bus_release_resource, pccard_release_resource),
DEVMETHOD(bus_activate_resource, pccard_activate_resource),
DEVMETHOD(bus_deactivate_resource, pccard_deactivate_resource),
DEVMETHOD(bus_setup_intr, pccard_setup_intr),
DEVMETHOD(bus_teardown_intr, pccard_teardown_intr),
DEVMETHOD(bus_set_resource, pccard_set_resource),
DEVMETHOD(bus_get_resource, pccard_get_resource),
DEVMETHOD(bus_delete_resource, pccard_delete_resource),
DEVMETHOD(bus_read_ivar, pccard_read_ivar),
/* Card Interface */
DEVMETHOD(card_set_res_flags, pccard_set_res_flags),
DEVMETHOD(card_set_memory_offset, pccard_set_memory_offset),
DEVMETHOD(card_get_type, pccard_card_gettype),
DEVMETHOD(card_attach_card, pccard_attach_card),
DEVMETHOD(card_detach_card, pccard_detach_card),
{ 0, 0 }
};
static driver_t pccard_driver = {
"pccard",
pccard_methods,
sizeof(struct pccard_softc)
};
devclass_t pccard_devclass;
DRIVER_MODULE(pccard, pcic, pccard_driver, pccard_devclass, 0, 0);
DRIVER_MODULE(pccard, pc98pcic, pccard_driver, pccard_devclass, 0, 0);
DRIVER_MODULE(pccard, pccbb, pccard_driver, pccard_devclass, 0, 0);
DRIVER_MODULE(pccard, tcic, pccard_driver, pccard_devclass, 0, 0);
MODULE_VERSION(pccard, 1);
/*MODULE_DEPEND(pccard, pcic, 1, 1, 1);*/
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