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authorLinus Torvalds <torvalds@linux-foundation.org>2010-10-23 11:47:02 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-10-23 11:47:02 -0700
commit5f05647dd81c11a6a165ccc8f0c1370b16f3bcb0 (patch)
tree7851ef1c93aa1aba7ef327ca4b75fd35e6d10f29 /drivers/net/wireless/libertas/main.c
parent02f36038c568111ad4fc433f6fa760ff5e38fab4 (diff)
parentec37a48d1d16c30b655ac5280209edf52a6775d4 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1699 commits) bnx2/bnx2x: Unsupported Ethtool operations should return -EINVAL. vlan: Calling vlan_hwaccel_do_receive() is always valid. tproxy: use the interface primary IP address as a default value for --on-ip tproxy: added IPv6 support to the socket match cxgb3: function namespace cleanup tproxy: added IPv6 support to the TPROXY target tproxy: added IPv6 socket lookup function to nf_tproxy_core be2net: Changes to use only priority codes allowed by f/w tproxy: allow non-local binds of IPv6 sockets if IP_TRANSPARENT is enabled tproxy: added tproxy sockopt interface in the IPV6 layer tproxy: added udp6_lib_lookup function tproxy: added const specifiers to udp lookup functions tproxy: split off ipv6 defragmentation to a separate module l2tp: small cleanup nf_nat: restrict ICMP translation for embedded header can: mcp251x: fix generation of error frames can: mcp251x: fix endless loop in interrupt handler if CANINTF_MERRF is set can-raw: add msg_flags to distinguish local traffic 9p: client code cleanup rds: make local functions/variables static ... Fix up conflicts in net/core/dev.c, drivers/net/pcmcia/smc91c92_cs.c and drivers/net/wireless/ath/ath9k/debug.c as per David
Diffstat (limited to 'drivers/net/wireless/libertas/main.c')
-rw-r--r--drivers/net/wireless/libertas/main.c105
1 files changed, 105 insertions, 0 deletions
diff --git a/drivers/net/wireless/libertas/main.c b/drivers/net/wireless/libertas/main.c
index 24958a86747b..47ce5a6ba120 100644
--- a/drivers/net/wireless/libertas/main.c
+++ b/drivers/net/wireless/libertas/main.c
@@ -1047,6 +1047,111 @@ void lbs_notify_command_response(struct lbs_private *priv, u8 resp_idx)
}
EXPORT_SYMBOL_GPL(lbs_notify_command_response);
+/**
+ * @brief Retrieves two-stage firmware
+ *
+ * @param dev A pointer to device structure
+ * @param user_helper User-defined helper firmware file
+ * @param user_mainfw User-defined main firmware file
+ * @param card_model Bus-specific card model ID used to filter firmware table
+ * elements
+ * @param fw_table Table of firmware file names and device model numbers
+ * terminated by an entry with a NULL helper name
+ * @param helper On success, the helper firmware; caller must free
+ * @param mainfw On success, the main firmware; caller must free
+ *
+ * @return 0 on success, non-zero on failure
+ */
+int lbs_get_firmware(struct device *dev, const char *user_helper,
+ const char *user_mainfw, u32 card_model,
+ const struct lbs_fw_table *fw_table,
+ const struct firmware **helper,
+ const struct firmware **mainfw)
+{
+ const struct lbs_fw_table *iter;
+ int ret;
+
+ BUG_ON(helper == NULL);
+ BUG_ON(mainfw == NULL);
+
+ /* Try user-specified firmware first */
+ if (user_helper) {
+ ret = request_firmware(helper, user_helper, dev);
+ if (ret) {
+ lbs_pr_err("couldn't find helper firmware %s",
+ user_helper);
+ goto fail;
+ }
+ }
+ if (user_mainfw) {
+ ret = request_firmware(mainfw, user_mainfw, dev);
+ if (ret) {
+ lbs_pr_err("couldn't find main firmware %s",
+ user_mainfw);
+ goto fail;
+ }
+ }
+
+ if (*helper && *mainfw)
+ return 0;
+
+ /* Otherwise search for firmware to use. If neither the helper or
+ * the main firmware were specified by the user, then we need to
+ * make sure that found helper & main are from the same entry in
+ * fw_table.
+ */
+ iter = fw_table;
+ while (iter && iter->helper) {
+ if (iter->model != card_model)
+ goto next;
+
+ if (*helper == NULL) {
+ ret = request_firmware(helper, iter->helper, dev);
+ if (ret)
+ goto next;
+
+ /* If the device has one-stage firmware (ie cf8305) and
+ * we've got it then we don't need to bother with the
+ * main firmware.
+ */
+ if (iter->fwname == NULL)
+ return 0;
+ }
+
+ if (*mainfw == NULL) {
+ ret = request_firmware(mainfw, iter->fwname, dev);
+ if (ret && !user_helper) {
+ /* Clear the helper if it wasn't user-specified
+ * and the main firmware load failed, to ensure
+ * we don't have mismatched firmware pairs.
+ */
+ release_firmware(*helper);
+ *helper = NULL;
+ }
+ }
+
+ if (*helper && *mainfw)
+ return 0;
+
+ next:
+ iter++;
+ }
+
+ fail:
+ /* Failed */
+ if (*helper) {
+ release_firmware(*helper);
+ *helper = NULL;
+ }
+ if (*mainfw) {
+ release_firmware(*mainfw);
+ *mainfw = NULL;
+ }
+
+ return -ENOENT;
+}
+EXPORT_SYMBOL_GPL(lbs_get_firmware);
+
static int __init lbs_init_module(void)
{
lbs_deb_enter(LBS_DEB_MAIN);