static int
mecia_sresource(struct slot *slt, caddr_t data)
{
struct pccard_resource *pr;
struct resource *r;
int flags;
int rid = 0;
device_t pccarddev = slt->dev;
pr = (struct pccard_resource *)data;
pr->resource_addr = ~0ul;
switch(pr->type) {
default:
return (EINVAL);
case SYS_RES_MEMORY:
case SYS_RES_IRQ:
case SYS_RES_IOPORT:
break;
}
flags = rman_make_alignment_flags(pr->size);
r = bus_alloc_resource(pccarddev, pr->type, &rid, pr->min, pr->max,
pr->size, flags);
if (r != NULL) {
pr->resource_addr = (u_long)rman_get_start(r);
bus_release_resource(bridgedev, pr->type, rid, r);
}
return (0);
}
static struct resource *
cardbus_read_tuple_init(device_t cbdev, device_t child, uint32_t *start,
int *rid)
{
struct resource *res;
uint32_t space;
space = *start & PCIM_CIS_ASI_MASK;
switch (space) {
case PCIM_CIS_ASI_CONFIG:
DEVPRINTF((cbdev, "CIS in PCI config space\n"));
/* CIS in PCI config space need no initialization */
return (CIS_CONFIG_SPACE);
case PCIM_CIS_ASI_BAR0:
case PCIM_CIS_ASI_BAR1:
case PCIM_CIS_ASI_BAR2:
case PCIM_CIS_ASI_BAR3:
case PCIM_CIS_ASI_BAR4:
case PCIM_CIS_ASI_BAR5:
*rid = PCIR_BAR(space - PCIM_CIS_ASI_BAR0);
DEVPRINTF((cbdev, "CIS in BAR %#x\n", *rid));
break;
case PCIM_CIS_ASI_ROM:
*rid = PCIR_BIOS;
DEVPRINTF((cbdev, "CIS in option rom\n"));
break;
default:
device_printf(cbdev, "Unable to read CIS: Unknown space: %d\n",
space);
return (NULL);
}
/* allocate the memory space to read CIS */
res = bus_alloc_resource_any(child, SYS_RES_MEMORY, rid,
rman_make_alignment_flags(4096) | RF_ACTIVE);
if (res == NULL) {
device_printf(cbdev, "Unable to allocate resource "
"to read CIS.\n");
return (NULL);
}
DEVPRINTF((cbdev, "CIS Mapped to %#lx\n", rman_get_start(res)));
/* Flip to the right ROM image if CIS is in ROM */
if (space == PCIM_CIS_ASI_ROM) {
uint32_t imagesize;
uint32_t imagebase = 0;
uint32_t pcidata;
uint16_t romsig;
int romnum = 0;
int imagenum;
imagenum = (*start & PCIM_CIS_ROM_MASK) >> 28;
for (romnum = 0;; romnum++) {
romsig = bus_read_2(res,
imagebase + CARDBUS_EXROM_SIGNATURE);
if (romsig != 0xaa55) {
device_printf(cbdev, "Bad header in rom %d: "
"[%x] %04x\n", romnum, imagebase +
CARDBUS_EXROM_SIGNATURE, romsig);
cardbus_read_tuple_finish(cbdev, child, *rid,
res);
*rid = 0;
return (NULL);
}
/*
* If this was the Option ROM image that we were
* looking for, then we are done.
*/
if (romnum == imagenum)
break;
/* Find out where the next Option ROM image is */
pcidata = imagebase + bus_read_2(res,
imagebase + CARDBUS_EXROM_DATA_PTR);
imagesize = bus_read_2(res,
pcidata + CARDBUS_EXROM_DATA_IMAGE_LENGTH);
if (imagesize == 0) {
/*
* XXX some ROMs seem to have this as zero,
* can we assume this means 1 block?
*/
device_printf(cbdev, "Warning, size of Option "
"ROM image %d is 0 bytes, assuming 512 "
"bytes.\n", romnum);
imagesize = 1;
}
/* Image size is in 512 byte units */
imagesize <<= 9;
if ((bus_read_1(res, pcidata +
CARDBUS_EXROM_DATA_INDICATOR) & 0x80) != 0) {
device_printf(cbdev, "Cannot find CIS in "
"Option ROM\n");
cardbus_read_tuple_finish(cbdev, child, *rid,
res);
*rid = 0;
return (NULL);
}
imagebase += imagesize;
}
*start = imagebase + (*start & PCIM_CIS_ADDR_MASK);
} else {
