FreeBSD-5.3/sys/dev/pccard/pccard.c
/* $NetBSD: pcmcia.c,v 1.23 2000/07/28 19:17:02 drochner Exp $ */
/*
* 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/cdefs.h>
__FBSDID("$FreeBSD: src/sys/dev/pccard/pccard.c,v 1.93 2004/08/16 15:57:18 imp Exp $");
#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/sysctl.h>
#include <sys/types.h>
#include <sys/bus.h>
#include <machine/bus.h>
#include <sys/rman.h>
#include <machine/resource.h>
#include <net/ethernet.h>
#include <dev/pccard/pccardreg.h>
#include <dev/pccard/pccardvar.h>
#include "power_if.h"
#include "card_if.h"
#define PCCARDDEBUG
/* sysctl vars */
SYSCTL_NODE(_hw, OID_AUTO, pccard, CTLFLAG_RD, 0, "PCCARD parameters");
int pccard_debug = 0;
TUNABLE_INT("hw.pccard.debug", &pccard_debug);
SYSCTL_INT(_hw_pccard, OID_AUTO, debug, CTLFLAG_RW,
&pccard_debug, 0,
"pccard debug");
int pccard_cis_debug = 0;
TUNABLE_INT("hw.pccard.cis_debug", &pccard_cis_debug);
SYSCTL_INT(_hw_pccard, OID_AUTO, cis_debug, CTLFLAG_RW,
&pccard_cis_debug, 0, "pccard CIS debug");
#ifdef PCCARDDEBUG
#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
static int pccard_ccr_read(struct pccard_function *pf, int ccr);
static void pccard_ccr_write(struct pccard_function *pf, int ccr, int val);
static int pccard_attach_card(device_t dev);
static int pccard_detach_card(device_t dev);
static void pccard_function_init(struct pccard_function *pf);
static void pccard_function_free(struct pccard_function *pf);
static int pccard_function_enable(struct pccard_function *pf);
static void pccard_function_disable(struct pccard_function *pf);
static int pccard_compat_do_probe(device_t bus, device_t dev);
static int pccard_compat_do_attach(device_t bus, device_t dev);
static int pccard_add_children(device_t dev, int busno);
static int pccard_probe(device_t dev);
static int pccard_attach(device_t dev);
static int pccard_detach(device_t dev);
static void pccard_print_resources(struct resource_list *rl,
const char *name, int type, int count, const char *format);
static int pccard_print_child(device_t dev, device_t child);
static int pccard_set_resource(device_t dev, device_t child, int type,
int rid, u_long start, u_long count);
static int pccard_get_resource(device_t dev, device_t child, int type,
int rid, u_long *startp, u_long *countp);
static void pccard_delete_resource(device_t dev, device_t child, int type,
int rid);
static int pccard_set_res_flags(device_t dev, device_t child, int type,
int rid, u_int32_t flags);
static int pccard_set_memory_offset(device_t dev, device_t child, int rid,
u_int32_t offset, u_int32_t *deltap);
static void pccard_probe_nomatch(device_t cbdev, device_t child);
static int pccard_read_ivar(device_t bus, device_t child, int which,
u_char *result);
static void pccard_driver_added(device_t dev, driver_t *driver);
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);
static int pccard_release_resource(device_t dev, device_t child, int type,
int rid, struct resource *r);
static void pccard_child_detached(device_t parent, device_t dev);
static void pccard_intr(void *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);
static int pccard_teardown_intr(device_t dev, device_t child,
struct resource *r, void *cookie);
static const struct pccard_product *
pccard_do_product_lookup(device_t bus, device_t dev,
const struct pccard_product *tab, size_t ent_size,
pccard_product_match_fn matchfn);
static int
pccard_ccr_read(struct pccard_function *pf, int ccr)
{
return (bus_space_read_1(pf->pf_ccrt, pf->pf_ccrh,
pf->pf_ccr_offset + ccr));
}
static void
pccard_ccr_write(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_set_default_descr(device_t dev)
{
const char *vendorstr, *prodstr;
uint32_t vendor, prod;
char *str;
if (pccard_get_vendor_str(dev, &vendorstr))
return (0);
if (pccard_get_product_str(dev, &prodstr))
return (0);
if (vendorstr != NULL && prodstr != NULL) {
str = malloc(strlen(vendorstr) + strlen(prodstr) + 2, M_DEVBUF,
M_WAITOK);
sprintf(str, "%s %s", vendorstr, prodstr);
device_set_desc_copy(dev, str);
free(str, M_DEVBUF);
} else {
if (pccard_get_vendor(dev, &vendor))
return (0);
if (pccard_get_product(dev, &prod))
return (0);
str = malloc(100, M_DEVBUF, M_WAITOK);
snprintf(str, 100, "vendor=0x%x product=0x%x", vendor, prod);
device_set_desc_copy(dev, str);
free(str, M_DEVBUF);
}
return (0);
}
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 i;
/*
* 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 (bootverbose || pccard_debug)
pccard_print_cis(dev);
DEVPRINTF((dev, "functions scanning\n"));
i = -1;
STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
i++;
if (STAILQ_EMPTY(&pf->cfe_head)) {
device_printf(dev,
"Function %d has no config entries.!\n", i);
continue;
}
pf->sc = sc;
pf->cfe = NULL;
pf->dev = NULL;
}
DEVPRINTF((dev, "Card has %d functions. pccard_mfc is %d\n", i + 1,
pccard_mfc(sc)));
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 seems to work well in practice for most cards.
* However, there are two cases that are problematic.
* If a driver wishes to pick and chose which config
* entry to use, then this method falls down. These
* are usually older cards. In addition, there are
* some cards that have multiple hardware units on the
* cards, but presents only one CIS chain. These cards
* are combination cards, but only one of these units
* can be on at a time.
*/
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 (sc->sc_enabled_count == 0)
POWER_ENABLE_SOCKET(device_get_parent(dev), dev);
if (pccard_function_enable(pf) == 0 &&
pccard_set_default_descr(child) == 0 &&
device_probe_and_attach(child) == 0) {
DEVPRINTF((sc->dev, "function %d CCR at %d "
"offset %x mask %x: "
"%x %x %x %x, %x %x %x %x, %x\n",
pf->number, pf->pf_ccr_window, pf->pf_ccr_offset,
pf->ccr_mask, 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 {
if (pf->cfe != NULL)
pccard_function_disable(pf);
}
}
return (0);
}
static int
pccard_detach_card(device_t dev)
{
struct pccard_softc *sc = PCCARD_SOFTC(dev);
struct pccard_function *pf;
struct pccard_config_entry *cfe;
int state;
/*
* 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 (pf->dev == NULL)
continue;
state = device_get_state(pf->dev);
if (state == DS_ATTACHED || state == DS_BUSY)
device_detach(pf->dev);
if (pf->cfe != NULL)
pccard_function_disable(pf);
pccard_function_free(pf);
device_delete_child(dev, pf->dev);
}
if (sc->sc_enabled_count == 0)
POWER_DISABLE_SOCKET(device_get_parent(dev), dev);
while (NULL != (pf = STAILQ_FIRST(&sc->card.pf_head))) {
while (NULL != (cfe = STAILQ_FIRST(&pf->cfe_head))) {
STAILQ_REMOVE_HEAD(&pf->cfe_head, cfe_list);
free(cfe, M_DEVBUF);
}
STAILQ_REMOVE_HEAD(&sc->card.pf_head, pf_list);
free(pf, M_DEVBUF);
}
return (0);
}
static const struct pccard_product *
pccard_do_product_lookup(device_t bus, 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;
const char *vendorstr;
const char *prodstr;
#ifdef DIAGNOSTIC
if (sizeof *ent > ent_size)
panic("pccard_product_lookup: bogus ent_size %jd",
(intmax_t) 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_vendor != 0; ent =
(const struct pccard_product *) ((const char *) ent + ent_size)) {
matches = 1;
if (ent->pp_vendor == PCCARD_VENDOR_ANY &&
ent->pp_product == PCCARD_PRODUCT_ANY &&
ent->pp_cis[0] == NULL &&
ent->pp_cis[1] == NULL) {
if (ent->pp_name)
device_printf(dev,
"Total wildcard entry ignored for %s\n",
ent->pp_name);
continue;
}
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_cis[0] &&
(vendorstr == NULL ||
strcmp(ent->pp_cis[0], vendorstr) != 0))
matches = 0;
if (matches && ent->pp_cis[1] &&
(prodstr == NULL ||
strcmp(ent->pp_cis[1], prodstr) != 0))
matches = 0;
/* XXX need to match cis[2] and cis[3] also XXX */
if (matchfn != NULL)
matches = (*matchfn)(dev, ent, matches);
if (matches)
return (ent);
}
return (NULL);
}
/*
* Initialize a PCCARD function. May be called as long as the function is
* disabled.
*
* Note: pccard_function_init should not keep resources allocated. It should
* only set them up ala isa pnp, set the values in the rl lists, and return.
* Any resource held after pccard_function_init is called is a bug. However,
* the bus routines to get the resources also assume that pccard_function_init
* does this, so they need to be fixed too.
*/
static 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;
int spaces;
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. */
STAILQ_FOREACH(cfe, &pf->cfe_head, cfe_list) {
for (i = 0; i < cfe->num_iospace; i++)
cfe->iores[i] = NULL;
cfe->irqres = NULL;
spaces = 0;
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;
DEVPRINTF((bus, "I/O rid %d start %x end %x\n",
i, start, end));
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] == NULL)
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;
spaces++;
}
if (cfe->num_memspace > 0) {
/*
* Not implement yet, Fix me.
*/
DEVPRINTF((bus, "Memory space not yet implemented.\n"));
}
if (spaces == 0) {
DEVPRINTF((bus, "Neither memory nor I/O mampped\n"));
goto not_this_one;
}
if (cfe->irqmask) {
cfe->irqrid = 0;
r = cfe->irqres = bus_alloc_resource_any(bus,
SYS_RES_IRQ, &cfe->irqrid, 0);
if (cfe->irqres == NULL)
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;
}
/* 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++) {
if (cfe->iores[i] != NULL) {
bus_release_resource(bus, SYS_RES_IOPORT,
cfe->iorid[i], cfe->iores[i]);
rle = resource_list_find(rl, SYS_RES_IOPORT,
cfe->iorid[i]);
rle->res = NULL;
resource_list_delete(rl, SYS_RES_IOPORT,
cfe->iorid[i]);
}
cfe->iores[i] = NULL;
}
if (cfe->irqmask && cfe->irqres != NULL) {
bus_release_resource(bus, SYS_RES_IRQ,
cfe->irqrid, cfe->irqres);
rle = resource_list_find(rl, SYS_RES_IRQ,
cfe->irqrid);
rle->res = NULL;
resource_list_delete(rl, SYS_RES_IRQ, cfe->irqrid);
cfe->irqres = NULL;
}
}
}
/*
* Free resources allocated by pccard_function_init(), May be called as long
* as the function is disabled.
*
* NOTE: This function should be unnecessary. pccard_function_init should
* never keep resources initialized.
*/
static void
pccard_function_free(struct pccard_function *pf)
{
struct pccard_ivar *devi = PCCARD_IVAR(pf->dev);
struct resource_list_entry *rle;
if (pf->pf_flags & PFF_ENABLED) {
printf("pccard_function_init: function is enabled");
return;
}
SLIST_FOREACH(rle, &devi->resources, link) {
if (rle->res) {
if (rman_get_device(rle->res) != pf->sc->dev)
device_printf(pf->sc->dev,
"function_free: Resource still owned by "
"child, oops. "
"(type=%d, rid=%d, addr=%lx)\n",
rle->type, rle->rid,
rman_get_start(rle->res));
BUS_RELEASE_RESOURCE(device_get_parent(pf->sc->dev),
pf->sc->dev, rle->type, rle->rid, rle->res);
rle->res = NULL;
}
}
resource_list_free(&devi->resources);
}
static void
pccard_mfc_adjust_iobase(struct pccard_function *pf, bus_addr_t addr,
bus_addr_t offset, bus_size_t size)
{
bus_size_t iosize, tmp;
if (addr != 0) {
if (pf->pf_mfc_iomax == 0) {
pf->pf_mfc_iobase = addr + offset;
pf->pf_mfc_iomax = pf->pf_mfc_iobase + size;
} else {
/* this makes the assumption that nothing overlaps */
if (pf->pf_mfc_iobase > addr + offset)
pf->pf_mfc_iobase = addr + offset;
if (pf->pf_mfc_iomax < addr + offset + size)
pf->pf_mfc_iomax = 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--;
DEVPRINTF((pf->dev, "MFC: I/O base %#jx IOSIZE %#jx\n",
(uintmax_t)pf->pf_mfc_iobase, (uintmax_t)(iosize + 1)));
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);
}
/* Enable a PCCARD function */
static 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.
*/
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=%x\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);
/* PCCARD_CCR_OPTION_IRQ_ENABLE set elsewhere as needed */
}
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))
pccard_mfc_adjust_iobase(pf, 0, 0, 0);
#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.
*/
pf->sc->sc_enabled_count--;
DEVPRINTF((dev, "bad --enabled_count = %d\n", pf->sc->sc_enabled_count));
return (1);
}
/* Disable PCCARD function. */
static 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) {
struct pccard_ivar *devi = PCCARD_IVAR(pf->dev);
struct resource_list_entry *rle =
resource_list_find(&devi->resources, SYS_RES_IRQ, 0);
BUS_TEARDOWN_INTR(dev, pf->dev, rle->res,
pf->intr_handler_cookie);
}
/*
* 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.
*/
pf->sc->sc_enabled_count--;
}
/*
* 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.
*/
static int
pccard_compat_do_probe(device_t bus, device_t dev)
{
return (CARD_COMPAT_MATCH(dev));
}
static int
pccard_compat_do_attach(device_t bus, 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 int
pccard_detach(device_t dev)
{
pccard_detach_card(dev);
return 0;
}
static int
pccard_suspend(device_t self)
{
pccard_detach_card(self);
return (0);
}
static
int
pccard_resume(device_t self)
{
return (0);
}
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 != NULL) {
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 != NULL) {
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);
if (NULL != resource_list_alloc(rl, device_get_parent(dev), dev,
type, &rid, start, start + count - 1, count, 0))
return 0;
else
return ENOMEM;
}
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 == NULL)
return (ENOENT);
if (startp != NULL)
*startp = rle->start;
if (countp != NULL)
*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 void
pccard_probe_nomatch(device_t bus, device_t child)
{
struct pccard_ivar *devi = PCCARD_IVAR(child);
struct pccard_function *func = devi->fcn;
struct pccard_softc *sc = PCCARD_SOFTC(bus);
device_printf(bus, "<unknown card>");
printf(" (manufacturer=0x%04x, product=0x%04x) at function %d\n",
sc->card.manufacturer, sc->card.product, func->number);
device_printf(bus, " CIS info: %s, %s, %s\n", sc->card.cis1_info[0],
sc->card.cis1_info[1], sc->card.cis1_info[2]);
return;
}
static int
pccard_child_location_str(device_t bus, device_t child, char *buf,
size_t buflen)
{
struct pccard_ivar *devi = PCCARD_IVAR(child);
struct pccard_function *func = devi->fcn;
snprintf(buf, buflen, "function=%d", func->number);
return (0);
}
static int
pccard_child_pnpinfo_str(device_t bus, device_t child, char *buf,
size_t buflen)
{
struct pccard_ivar *devi = PCCARD_IVAR(child);
struct pccard_function *func = devi->fcn;
struct pccard_softc *sc = PCCARD_SOFTC(bus);
snprintf(buf, buflen, "manufacturer=0x%04x product=0x%04x "
"cisvendor=\"%s\" cisproduct=\"%s\" function_type=%d",
sc->card.manufacturer, sc->card.product, sc->card.cis1_info[0],
sc->card.cis1_info[1], func->function);
return (0);
}
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);
switch (which) {
default:
case PCCARD_IVAR_ETHADDR:
bcopy(func->pf_funce_lan_nid, result, ETHER_ADDR_LEN);
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_PRODEXT:
*(u_int16_t *) result = sc->card.prodext;
break;
case PCCARD_IVAR_FUNCTION:
*(u_int32_t *) result = func->function;
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[3];
break;
}
return (0);
}
static void
pccard_driver_added(device_t dev, driver_t *driver)
{
struct pccard_softc *sc = PCCARD_SOFTC(dev);
struct pccard_function *pf;
device_t child;
STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
if (STAILQ_EMPTY(&pf->cfe_head))
continue;
child = pf->dev;
if (device_get_state(child) != DS_NOTPRESENT)
continue;
if (pccard_function_enable(pf) == 0 &&
device_probe_and_attach(child) == 0) {
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 {
if (pf->cfe != NULL)
pccard_function_disable(pf);
}
}
return;
}
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 pccard_ivar *dinfo;
struct resource_list_entry *rle = 0;
int passthrough = (device_get_parent(child) != dev);
int isdefault = (start == 0 && end == ~0UL && count == 1);
struct resource *r = NULL;
/* XXX I'm no longer sure this is right */
if (passthrough) {
return (BUS_ALLOC_RESOURCE(device_get_parent(dev), child,
type, rid, start, end, count, flags));
}
dinfo = device_get_ivars(child);
rle = resource_list_find(&dinfo->resources, type, *rid);
if (rle == NULL && isdefault)
return (NULL); /* no resource of that type/rid */
if (rle == NULL || rle->res == NULL) {
/* Do we want this device to own it? */
/* XXX I think so, but that might be lame XXX */
r = bus_alloc_resource(dev, type, rid, start, end,
count, flags /* XXX aligment? */);
if (r == NULL)
goto bad;
resource_list_add(&dinfo->resources, type, *rid,
rman_get_start(r), rman_get_end(r), count);
rle = resource_list_find(&dinfo->resources, type, *rid);
if (!rle)
goto bad;
rle->res = r;
}
/*
* XXX the following looks wrong, in theory, but likely it is
* XXX needed because of how the CIS code allocates resources
* XXX for this device.
*/
if (rman_get_device(rle->res) != dev)
return (NULL);
bus_release_resource(dev, type, *rid, rle->res);
rle->res = NULL;
switch(type) {
case SYS_RES_IOPORT:
case SYS_RES_MEMORY:
if (!(flags & RF_ALIGNMENT_MASK))
flags |= rman_make_alignment_flags(rle->count);
break;
case SYS_RES_IRQ:
flags |= RF_SHAREABLE;
break;
}
rle->res = resource_list_alloc(&dinfo->resources, dev, child,
type, rid, rle->start, rle->end, rle->count, flags);
return (rle->res);
bad:;
device_printf(dev, "WARNING: Resource not reserved by pccard\n");
return (NULL);
}
static int
pccard_release_resource(device_t dev, device_t child, int type, int rid,
struct resource *r)
{
struct pccard_ivar *dinfo;
int passthrough = (device_get_parent(child) != dev);
struct resource_list_entry *rle = 0;
int ret;
int flags;
if (passthrough)
return BUS_RELEASE_RESOURCE(device_get_parent(dev), child,
type, rid, r);
dinfo = device_get_ivars(child);
rle = resource_list_find(&dinfo->resources, type, rid);
if (!rle) {
device_printf(dev, "Allocated resource not found, "
"%d %x %lx %lx\n",
type, rid, rman_get_start(r), rman_get_size(r));
return ENOENT;
}
if (!rle->res) {
device_printf(dev, "Allocated resource not recorded\n");
return ENOENT;
}
ret = BUS_RELEASE_RESOURCE(device_get_parent(dev), child,
type, rid, r);
switch(type) {
case SYS_RES_IOPORT:
case SYS_RES_MEMORY:
flags = rman_make_alignment_flags(rle->count);
break;
case SYS_RES_IRQ:
flags = RF_SHAREABLE;
break;
default:
flags = 0;
}
rle->res = bus_alloc_resource(dev, type, &rid,
rle->start, rle->end, rle->count, flags);
if (rle->res == NULL)
device_printf(dev, "release_resource: "
"unable to reaquire resource\n");
return ret;
}
static void
pccard_child_detached(device_t parent, device_t dev)
{
struct pccard_ivar *ivar = PCCARD_IVAR(dev);
struct pccard_function *pf = ivar->fcn;
pccard_function_disable(pf);
}
static void
pccard_intr(void *arg)
{
struct pccard_function *pf = (struct pccard_function*) arg;
int reg;
int doisr = 1;
/*
* MFC cards know if they interrupted, so we have to ack the
* interrupt and call the ISR. Non-MFC cards don't have these
* bits, so they always get called. Many non-MFC cards have
* this bit set always upon read, but some do not.
*
* We always ack the interrupt, even if there's no ISR
* for the card. This is done on the theory that acking
* the interrupt will pacify the card enough to keep an
* interrupt storm from happening. Of course this won't
* help in the non-MFC case.
*
* This has no impact for MPSAFEness of the client drivers.
* We register this with whatever flags the intr_handler
* was registered with. All these functions are MPSAFE.
*/
if (pccard_mfc(pf->sc)) {
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);
else
doisr = 0;
}
if (pf->intr_handler != NULL && doisr)
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_softc *sc = PCCARD_SOFTC(dev);
struct pccard_ivar *ivar = PCCARD_IVAR(child);
struct pccard_function *func = ivar->fcn;
int err;
if (func->intr_handler != NULL)
panic("Only one interrupt handler per function allowed");
err = bus_generic_setup_intr(dev, child, irq, flags, pccard_intr,
func, cookiep);
if (err != 0)
return (err);
func->intr_handler = intr;
func->intr_handler_arg = arg;
func->intr_handler_cookie = *cookiep;
if (pccard_mfc(sc)) {
pccard_ccr_write(func, PCCARD_CCR_OPTION,
pccard_ccr_read(func, PCCARD_CCR_OPTION) |
PCCARD_CCR_OPTION_IREQ_ENABLE);
}
return (0);
}
static int
pccard_teardown_intr(device_t dev, device_t child, struct resource *r,
void *cookie)
{
struct pccard_softc *sc = PCCARD_SOFTC(dev);
struct pccard_ivar *ivar = PCCARD_IVAR(child);
struct pccard_function *func = ivar->fcn;
int ret;
if (pccard_mfc(sc)) {
pccard_ccr_write(func, PCCARD_CCR_OPTION,
pccard_ccr_read(func, PCCARD_CCR_OPTION) &
~PCCARD_CCR_OPTION_IREQ_ENABLE);
}
ret = bus_generic_teardown_intr(dev, child, r, cookie);
if (ret == 0) {
func->intr_handler = NULL;
func->intr_handler_arg = NULL;
func->intr_handler_cookie = NULL;
}
return (ret);
}
static int
pccard_activate_resource(device_t brdev, device_t child, int type, int rid,
struct resource *r)
{
struct pccard_ivar *ivar = PCCARD_IVAR(child);
struct pccard_function *pf = ivar->fcn;
switch(type) {
case SYS_RES_IOPORT:
/*
* We need to adjust IOBASE[01] and IOSIZE if we're an MFC
* card.
*/
if (pccard_mfc(pf->sc))
pccard_mfc_adjust_iobase(pf, rman_get_start(r), 0,
rman_get_size(r));
break;
default:
break;
}
return (bus_generic_activate_resource(brdev, child, type, rid, r));
}
static int
pccard_deactivate_resource(device_t brdev, device_t child, int type,
int rid, struct resource *r)
{
/* XXX undo pccard_activate_resource? XXX */
return (bus_generic_deactivate_resource(brdev, child, type, rid, r));
}
static device_method_t pccard_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, pccard_probe),
DEVMETHOD(device_attach, pccard_attach),
DEVMETHOD(device_detach, pccard_detach),
DEVMETHOD(device_shutdown, bus_generic_shutdown),
DEVMETHOD(device_suspend, pccard_suspend),
DEVMETHOD(device_resume, pccard_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_probe_nomatch, pccard_probe_nomatch),
DEVMETHOD(bus_read_ivar, pccard_read_ivar),
DEVMETHOD(bus_child_pnpinfo_str, pccard_child_pnpinfo_str),
DEVMETHOD(bus_child_location_str, pccard_child_location_str),
/* Card Interface */
DEVMETHOD(card_set_res_flags, pccard_set_res_flags),
DEVMETHOD(card_set_memory_offset, pccard_set_memory_offset),
DEVMETHOD(card_attach_card, pccard_attach_card),
DEVMETHOD(card_detach_card, pccard_detach_card),
DEVMETHOD(card_compat_do_probe, pccard_compat_do_probe),
DEVMETHOD(card_compat_do_attach, pccard_compat_do_attach),
DEVMETHOD(card_do_product_lookup, pccard_do_product_lookup),
{ 0, 0 }
};
static driver_t pccard_driver = {
"pccard",
pccard_methods,
sizeof(struct pccard_softc)
};
devclass_t pccard_devclass;
/* Maybe we need to have a slot device? */
DRIVER_MODULE(pccard, pcic, pccard_driver, pccard_devclass, 0, 0);
DRIVER_MODULE(pccard, cbb, pccard_driver, pccard_devclass, 0, 0);
MODULE_VERSION(pccard, 1);