pcmcia: use pre-determined values

A few PCMCIA network drivers can make use of values provided by the pcmcia
core, instead of tedious, independent CIS parsing.

xirc32ps_cs.c: manf_id

hostap_cs.c: multifunction count

b43/pcmcia.c: ConfigBase address and "Present"

smc91c92_cs.c:  By default, mhz_setup() can use VERS_1 as it is stored
in struct pcmcia_device. Only some cards require workarounds, such as
reading out VERS_1 twice.

CC: David S. Miller <davem@davemloft.net>
CC: netdev@vger.kernel.org
CC: linux-wireless@vger.kernel.org
Acked-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>

4 files changed, 19 insertions, 45 deletions

diff --git a/drivers/net/pcmcia/smc91c92_cs.c b/drivers/net/pcmcia/smc91c92_cs.c
index 7bde2cd34c7..af03759d186 100644
--- a/drivers/net/pcmcia/smc91c92_cs.c
+++ b/drivers/net/pcmcia/smc91c92_cs.c
@@ -545,6 +545,14 @@ static int mhz_setup(struct pcmcia_device *link)
     u_char *buf, *station_addr;
     int rc;
 
+    /* Read the station address from the CIS.  It is stored as the last
+       (fourth) string in the Version 1 Version/ID tuple. */
+    if ((link->prod_id[3]) &&
+        (cvt_ascii_address(dev, link->prod_id[3]) == 0))
+            return 0;
+
+    /* Workarounds for broken cards start here. */
+
     cfg_mem = kmalloc(sizeof(struct smc_cfg_mem), GFP_KERNEL);
     if (!cfg_mem)
         return -1;
@@ -557,8 +565,7 @@ static int mhz_setup(struct pcmcia_device *link)
     tuple->TupleData = (cisdata_t *)buf;
     tuple->TupleDataMax = 255;
 
-    /* Read the station address from the CIS.  It is stored as the last
-       (fourth) string in the Version 1 Version/ID tuple. */
+    /* Ugh -- the EM1144 card has two VERS_1 tuples!?! */
     tuple->DesiredTuple = CISTPL_VERS_1;
     if (first_tuple(link, tuple, parse) != 0) {
         rc = -1;
diff --git a/drivers/net/pcmcia/xirc2ps_cs.c b/drivers/net/pcmcia/xirc2ps_cs.c
index cf842310253..5e203230144 100644
--- a/drivers/net/pcmcia/xirc2ps_cs.c
+++ b/drivers/net/pcmcia/xirc2ps_cs.c
@@ -792,13 +792,12 @@ xirc2ps_config(struct pcmcia_device * link)
     tuple.TupleOffset = 0;
 
     /* Is this a valid  card */
-    tuple.DesiredTuple = CISTPL_MANFID;
-    if ((err=first_tuple(link, &tuple, &parse))) {
+    if (link->has_manf_id == 0) {
         printk(KNOT_XIRC "manfid not found in CIS\n");
         goto failure;
     }
 
-    switch(parse.manfid.manf) {
+    switch (link->manf_id) {
       case MANFID_XIRCOM:
         local->manf_str = "Xircom";
         break;
@@ -822,6 +821,13 @@ xirc2ps_config(struct pcmcia_device * link)
     }
     DEBUG(0, "found %s card\n", local->manf_str);
 
+    /* needed for the additional fields to be parsed by set_card_type() */
+    tuple.DesiredTuple = CISTPL_MANFID;
+    err = first_tuple(link, &tuple, &parse)
+    if (err) {
+        printk(KNOT_XIRC "manfid not found in CIS\n");
+        goto failure;
+    }
     if (!set_card_type(link, buf)) {
         printk(KNOT_XIRC "this card is not supported\n");
         goto failure;
diff --git a/drivers/net/wireless/b43/pcmcia.c b/drivers/net/wireless/b43/pcmcia.c
index 6c3a74964ab..cd14b7e8ba8 100644
--- a/drivers/net/wireless/b43/pcmcia.c
+++ b/drivers/net/wireless/b43/pcmcia.c
@@ -65,35 +65,15 @@ static int __devinit b43_pcmcia_probe(struct pcmcia_device *dev)
         struct ssb_bus *ssb;
         win_req_t win;
         memreq_t mem;
-        tuple_t tuple;
-        cisparse_t parse;
         int err = -ENOMEM;
         int res = 0;
-        unsigned char buf[64];
 
         ssb = kzalloc(sizeof(*ssb), GFP_KERNEL);
         if (!ssb)
                 goto out_error;
 
         err = -ENODEV;
-        tuple.DesiredTuple = CISTPL_CONFIG;
-        tuple.Attributes = 0;
-        tuple.TupleData = buf;
-        tuple.TupleDataMax = sizeof(buf);
-        tuple.TupleOffset = 0;
 
-        res = pcmcia_get_first_tuple(dev, &tuple);
-        if (res != 0)
-                goto err_kfree_ssb;
-        res = pcmcia_get_tuple_data(dev, &tuple);
-        if (res != 0)
-                goto err_kfree_ssb;
-        res = pcmcia_parse_tuple(&tuple, &parse);
-        if (res != 0)
-                goto err_kfree_ssb;
-
-        dev->conf.ConfigBase = parse.config.base;
-        dev->conf.Present = parse.config.rmask[0];
         dev->conf.Attributes = CONF_ENABLE_IRQ;
         dev->conf.IntType = INT_MEMORY_AND_IO;
 
diff --git a/drivers/net/wireless/hostap/hostap_cs.c b/drivers/net/wireless/hostap/hostap_cs.c
index ad8eab4a639..31b60dd87bf 100644
--- a/drivers/net/wireless/hostap/hostap_cs.c
+++ b/drivers/net/wireless/hostap/hostap_cs.c
@@ -274,9 +274,6 @@ static int sandisk_enable_wireless(struct net_device *dev)
         conf_reg_t reg;
         struct hostap_interface *iface = netdev_priv(dev);
         local_info_t *local = iface->local;
-        tuple_t tuple;
-        cisparse_t *parse = NULL;
-        u_char buf[64];
         struct hostap_cs_priv *hw_priv = local->hw_priv;
 
         if (hw_priv->link->io.NumPorts1 < 0x42) {
@@ -285,28 +282,13 @@ static int sandisk_enable_wireless(struct net_device *dev)
                 goto done;
         }
 
-        parse = kmalloc(sizeof(cisparse_t), GFP_KERNEL);
-        if (parse == NULL) {
-                ret = -ENOMEM;
-                goto done;
-        }
-
-        tuple.Attributes = TUPLE_RETURN_COMMON;
-        tuple.TupleData = buf;
-        tuple.TupleDataMax = sizeof(buf);
-        tuple.TupleOffset = 0;
-
         if (hw_priv->link->manf_id != 0xd601 || hw_priv->link->card_id != 0x0101) {
                 /* No SanDisk manfid found */
                 ret = -ENODEV;
                 goto done;
         }
 
-        tuple.DesiredTuple = CISTPL_LONGLINK_MFC;
-        if (pcmcia_get_first_tuple(hw_priv->link, &tuple) ||
-            pcmcia_get_tuple_data(hw_priv->link, &tuple) ||
-            pcmcia_parse_tuple(&tuple, parse) ||
-                parse->longlink_mfc.nfn < 2) {
+        if (hw_priv->link->socket->functions < 2) {
                 /* No multi-function links found */
                 ret = -ENODEV;
                 goto done;
@@ -354,7 +336,6 @@ static int sandisk_enable_wireless(struct net_device *dev)
         udelay(10);
 
 done:
-        kfree(parse);
         return ret;
 }