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path: root/drivers/pcmcia/cistpl.c
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Diffstat (limited to 'drivers/pcmcia/cistpl.c')
-rw-r--r--drivers/pcmcia/cistpl.c158
1 files changed, 146 insertions, 12 deletions
diff --git a/drivers/pcmcia/cistpl.c b/drivers/pcmcia/cistpl.c
index 368367ced62..936417c3e79 100644
--- a/drivers/pcmcia/cistpl.c
+++ b/drivers/pcmcia/cistpl.c
@@ -76,7 +76,6 @@ void release_cis_mem(struct pcmcia_socket *s)
s->cis_virt = NULL;
}
}
-EXPORT_SYMBOL(release_cis_mem);
/*
* Map the card memory at "card_offset" into virtual space.
@@ -195,7 +194,6 @@ int pcmcia_read_cis_mem(struct pcmcia_socket *s, int attr, u_int addr,
*(u_char *)(ptr+2), *(u_char *)(ptr+3));
return 0;
}
-EXPORT_SYMBOL(pcmcia_read_cis_mem);
void pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr, u_int addr,
@@ -254,7 +252,6 @@ void pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr, u_int addr,
}
}
}
-EXPORT_SYMBOL(pcmcia_write_cis_mem);
/*======================================================================
@@ -335,7 +332,6 @@ void destroy_cis_cache(struct pcmcia_socket *s)
kfree(cis);
}
}
-EXPORT_SYMBOL(destroy_cis_cache);
/*======================================================================
@@ -374,7 +370,6 @@ int verify_cis_cache(struct pcmcia_socket *s)
kfree(buf);
return 0;
}
-EXPORT_SYMBOL(verify_cis_cache);
/*======================================================================
@@ -400,7 +395,6 @@ int pcmcia_replace_cis(struct pcmcia_socket *s,
memcpy(s->fake_cis, data, len);
return 0;
}
-EXPORT_SYMBOL(pcmcia_replace_cis);
/*======================================================================
@@ -446,7 +440,6 @@ int pccard_get_first_tuple(struct pcmcia_socket *s, unsigned int function, tuple
}
return pccard_get_next_tuple(s, function, tuple);
}
-EXPORT_SYMBOL(pccard_get_first_tuple);
static int follow_link(struct pcmcia_socket *s, tuple_t *tuple)
{
@@ -582,7 +575,6 @@ int pccard_get_next_tuple(struct pcmcia_socket *s, unsigned int function, tuple_
tuple->CISOffset = ofs + 2;
return 0;
}
-EXPORT_SYMBOL(pccard_get_next_tuple);
/*====================================================================*/
@@ -606,7 +598,6 @@ int pccard_get_tuple_data(struct pcmcia_socket *s, tuple_t *tuple)
_MIN(len, tuple->TupleDataMax), tuple->TupleData);
return 0;
}
-EXPORT_SYMBOL(pccard_get_tuple_data);
/*======================================================================
@@ -1379,7 +1370,6 @@ done:
kfree(buf);
return ret;
}
-EXPORT_SYMBOL(pccard_read_tuple);
/**
@@ -1439,7 +1429,6 @@ next_entry:
kfree(buf);
return ret;
}
-EXPORT_SYMBOL(pccard_loop_tuple);
/**
@@ -1533,4 +1522,149 @@ done:
kfree(p);
return ret;
}
-EXPORT_SYMBOL(pccard_validate_cis);
+
+
+#define to_socket(_dev) container_of(_dev, struct pcmcia_socket, dev)
+
+static ssize_t pccard_extract_cis(struct pcmcia_socket *s, char *buf,
+ loff_t off, size_t count)
+{
+ tuple_t tuple;
+ int status, i;
+ loff_t pointer = 0;
+ ssize_t ret = 0;
+ u_char *tuplebuffer;
+ u_char *tempbuffer;
+
+ tuplebuffer = kmalloc(sizeof(u_char) * 256, GFP_KERNEL);
+ if (!tuplebuffer)
+ return -ENOMEM;
+
+ tempbuffer = kmalloc(sizeof(u_char) * 258, GFP_KERNEL);
+ if (!tempbuffer) {
+ ret = -ENOMEM;
+ goto free_tuple;
+ }
+
+ memset(&tuple, 0, sizeof(tuple_t));
+
+ tuple.Attributes = TUPLE_RETURN_LINK | TUPLE_RETURN_COMMON;
+ tuple.DesiredTuple = RETURN_FIRST_TUPLE;
+ tuple.TupleOffset = 0;
+
+ status = pccard_get_first_tuple(s, BIND_FN_ALL, &tuple);
+ while (!status) {
+ tuple.TupleData = tuplebuffer;
+ tuple.TupleDataMax = 255;
+ memset(tuplebuffer, 0, sizeof(u_char) * 255);
+
+ status = pccard_get_tuple_data(s, &tuple);
+ if (status)
+ break;
+
+ if (off < (pointer + 2 + tuple.TupleDataLen)) {
+ tempbuffer[0] = tuple.TupleCode & 0xff;
+ tempbuffer[1] = tuple.TupleLink & 0xff;
+ for (i = 0; i < tuple.TupleDataLen; i++)
+ tempbuffer[i + 2] = tuplebuffer[i] & 0xff;
+
+ for (i = 0; i < (2 + tuple.TupleDataLen); i++) {
+ if (((i + pointer) >= off) &&
+ (i + pointer) < (off + count)) {
+ buf[ret] = tempbuffer[i];
+ ret++;
+ }
+ }
+ }
+
+ pointer += 2 + tuple.TupleDataLen;
+
+ if (pointer >= (off + count))
+ break;
+
+ if (tuple.TupleCode == CISTPL_END)
+ break;
+ status = pccard_get_next_tuple(s, BIND_FN_ALL, &tuple);
+ }
+
+ kfree(tempbuffer);
+ free_tuple:
+ kfree(tuplebuffer);
+
+ return ret;
+}
+
+
+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 ssize_t pccard_store_cis(struct kobject *kobj,
+ struct bin_attribute *bin_attr,
+ char *buf, loff_t off, size_t count)
+{
+ struct pcmcia_socket *s;
+ int error;
+
+ s = to_socket(container_of(kobj, struct device, kobj));
+
+ if (off)
+ return -EINVAL;
+
+ if (count >= CISTPL_MAX_CIS_SIZE)
+ return -EINVAL;
+
+ if (!(s->state & SOCKET_PRESENT))
+ return -ENODEV;
+
+ error = pcmcia_replace_cis(s, buf, count);
+ if (error)
+ return -EIO;
+
+ mutex_lock(&s->skt_mutex);
+ if ((s->callback) && (s->state & SOCKET_PRESENT) &&
+ !(s->state & SOCKET_CARDBUS)) {
+ if (try_module_get(s->callback->owner)) {
+ s->callback->requery(s, 1);
+ module_put(s->callback->owner);
+ }
+ }
+ mutex_unlock(&s->skt_mutex);
+
+ return count;
+}
+
+
+struct bin_attribute pccard_cis_attr = {
+ .attr = { .name = "cis", .mode = S_IRUGO | S_IWUSR },
+ .size = 0x200,
+ .read = pccard_show_cis,
+ .write = pccard_store_cis,
+};