orinoco: Separate fw caching from download

This refactorring will make it easier to share logic with Symbol
firmware.

Signed-off by: David Kilroy <kilroyd@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/orinoco/orinoco.c b/drivers/net/wireless/orinoco/orinoco.c
index 7ec038a..492f419 100644 (file)
--- a/drivers/net/wireless/orinoco/orinoco.c
+++ b/drivers/net/wireless/orinoco/orinoco.c
@@ -431,9 +431,9 @@ struct fw_info {
 };
 
 const static struct fw_info orinoco_fw[] = {
-       { "", "agere_sta_fw.bin", "agere_ap_fw.bin", 0x00390000, 1000 },
-       { "", "prism_sta_fw.bin", "prism_ap_fw.bin", 0, 1024 },
-       { "symbol_sp24t_prim_fw", "symbol_sp24t_sec_fw", "", 0x00003100, 512 }
+       { NULL, "agere_sta_fw.bin", "agere_ap_fw.bin", 0x00390000, 1000 },
+       { NULL, "prism_sta_fw.bin", "prism_ap_fw.bin", 0, 1024 },
+       { "symbol_sp24t_prim_fw", "symbol_sp24t_sec_fw", NULL, 0x00003100, 512 }
 };
 
 /* Structure used to access fields in FW
@@ -487,18 +487,17 @@ orinoco_dl_firmware(struct orinoco_private *priv,
        if (err)
                goto free;
 
-       if (priv->cached_fw)
-               fw_entry = priv->cached_fw;
-       else {
+       if (!priv->cached_fw) {
                err = request_firmware(&fw_entry, firmware, priv->dev);
+
                if (err) {
                        printk(KERN_ERR "%s: Cannot find firmware %s\n",
                               dev->name, firmware);
                        err = -ENOENT;
                        goto free;
                }
-               priv->cached_fw = fw_entry;
-       }
+       } else
+               fw_entry = priv->cached_fw;
 
        hdr = (const struct orinoco_fw_header *) fw_entry->data;
 
@@ -540,11 +539,9 @@ orinoco_dl_firmware(struct orinoco_private *priv,
               dev->name, hermes_present(hw));
 
 abort:
-       /* In case of error, assume firmware was bogus and release it */
-       if (err) {
-               priv->cached_fw = NULL;
+       /* If we requested the firmware, release it. */
+       if (!priv->cached_fw)
                release_firmware(fw_entry);
-       }
 
 free:
        kfree(pda);
@@ -708,6 +705,30 @@ static int orinoco_download(struct orinoco_private *priv)
        return err;
 }
 
+static void orinoco_cache_fw(struct orinoco_private *priv, int ap)
+{
+       const struct firmware *fw_entry = NULL;
+       const char *fw;
+
+       if (ap)
+               fw = orinoco_fw[priv->firmware_type].ap_fw;
+       else
+               fw = orinoco_fw[priv->firmware_type].sta_fw;
+
+       if (fw) {
+               if (request_firmware(&fw_entry, fw, priv->dev) == 0)
+                       priv->cached_fw = fw_entry;
+       }
+}
+
+static void orinoco_uncache_fw(struct orinoco_private *priv)
+{
+       if (priv->cached_fw)
+               release_firmware(priv->cached_fw);
+
+       priv->cached_fw = NULL;
+}
+
 /********************************************************************/
 /* Device methods                                                   */
 /********************************************************************/
@@ -3304,6 +3325,8 @@ static int orinoco_init(struct net_device *dev)
        }
 
        if (priv->do_fw_download) {
+               orinoco_cache_fw(priv, 0);
+
                err = orinoco_download(priv);
                if (err)
                        priv->do_fw_download = 0;
@@ -3553,9 +3576,9 @@ void free_orinocodev(struct net_device *dev)
         * when we call tasklet_kill it will run one final time,
         * emptying the list */
        tasklet_kill(&priv->rx_tasklet);
-       if (priv->cached_fw)
-               release_firmware(priv->cached_fw);
-       priv->cached_fw = NULL;
+
+       orinoco_uncache_fw(priv);
+
        priv->wpa_ie_len = 0;
        kfree(priv->wpa_ie);
        orinoco_mic_free(priv);