static ssize_t pccard_show_cis(struct kobject *kobj,
struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
unsigned int size = 0x200;
if (off >= size)
count = 0;
else {
struct pcmcia_socket *s;
unsigned int chains;
if (off + count > size)
count = size - off;
s = to_socket(container_of(kobj, struct device, kobj));
if (!(s->state & SOCKET_PRESENT))
return -ENODEV;
if (pccard_validate_cis(s, &chains))
return -EIO;
if (!chains)
return -ENODATA;
count = pccard_extract_cis(s, buf, off, count);
}
return (count);
}
static int pcmcia_card_add(struct pcmcia_socket *s)
{
cisinfo_t cisinfo;
cistpl_longlink_mfc_t mfc;
unsigned int no_funcs, i;
int ret = 0;
if (!(s->resource_setup_done))
return -EAGAIN; /* try again, but later... */
if (pcmcia_validate_mem(s))
return -EAGAIN; /* try again, but later... */
ret = pccard_validate_cis(s, BIND_FN_ALL, &cisinfo);
if (ret || !cisinfo.Chains) {
ds_dbg(0, "invalid CIS or invalid resources\n");
return -ENODEV;
}
if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc))
no_funcs = mfc.nfn;
else
no_funcs = 1;
for (i=0; i < no_funcs; i++)
pcmcia_device_add(s, i);
return (ret);
}
int pcmcia_validate_cis(client_handle_t handle, cisinfo_t *info)
{
struct pcmcia_socket *s;
if (CHECK_HANDLE(handle))
return CS_BAD_HANDLE;
s = SOCKET(handle);
return pccard_validate_cis(s, handle->Function, info);
}
/* Validation function for cards with a valid CIS */
static int readable(struct pcmcia_socket *s, struct resource *res, cisinfo_t *info)
{
int ret = -1;
s->cis_mem.res = res;
s->cis_virt = ioremap(res->start, s->map_size);
if (s->cis_virt) {
ret = pccard_validate_cis(s, BIND_FN_ALL, info);
/* invalidate mapping and CIS cache */
iounmap(s->cis_virt);
s->cis_virt = NULL;
destroy_cis_cache(s);
}
s->cis_mem.res = NULL;
if ((ret != 0) || (info->Chains == 0))
return 0;
return 1;
}
