1 files changed, 50 insertions, 0 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 6b874dab412..f61f653a1b7 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -533,12 +533,16 @@ static void iwl_rx_reply_alive(struct iwl_priv *priv,
 
 	if (palive->ver_subtype == INITIALIZE_SUBTYPE) {
 		IWL_DEBUG_INFO(priv, "Initialization Alive received.\n");
+		set_bit(STATUS_INIT_UCODE_ALIVE, &priv->status);
+		wake_up_interruptible(&priv->wait_command_queue);
 		memcpy(&priv->card_alive_init,
 		       &pkt->u.alive_frame,
 		       sizeof(struct iwl_init_alive_resp));
 		pwork = &priv->init_alive_start;
 	} else {
 		IWL_DEBUG_INFO(priv, "Runtime Alive received.\n");
+		set_bit(STATUS_RT_UCODE_ALIVE, &priv->status);
+		wake_up_interruptible(&priv->wait_command_queue);
 		memcpy(&priv->card_alive, &pkt->u.alive_frame,
 		       sizeof(struct iwl_alive_resp));
 		pwork = &priv->alive_start;
@@ -1782,6 +1786,7 @@ static int __iwl_up(struct iwl_priv *priv)
 {
 	int i;
 	int ret;
+	unsigned long status;
 
 	if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
 		IWL_WARN(priv, "Exit pending; will not bring the NIC up\n");
@@ -1859,6 +1864,51 @@ static int __iwl_up(struct iwl_priv *priv)
 		/* start card; "initialize" will load runtime ucode */
 		iwl_nic_start(priv);
 
+		/* Just finish download Init or Runtime uCode image to device
+		 * now we wait here for uCode send REPLY_ALIVE notification
+		 * to indicate uCode is ready.
+		 * 1) For Init uCode image, all iwlagn devices should wait here
+		 * on STATUS_INIT_UCODE_ALIVE status bit; if timeout before
+		 * receive the REPLY_ALIVE notification, go back and try to
+		 * download the Init uCode image again.
+		 * 2) For Runtime uCode image, all iwlagn devices except 4965
+		 * wait here on STATUS_RT_UCODE_ALIVE status bit; if
+		 * timeout before receive the REPLY_ALIVE notification, go back
+		 * and download the Runtime uCode image again.
+		 * 3) For 4965 Runtime uCode, it will not go through this path,
+		 * need to wait for STATUS_RT_UCODE_ALIVE status bit in
+		 * iwl4965_init_alive_start() function; if timeout, need to
+		 * restart and download Init uCode image.
+		 */
+		if (priv->ucode_type == UCODE_INIT)
+			status = STATUS_INIT_UCODE_ALIVE;
+		else
+			status = STATUS_RT_UCODE_ALIVE;
+		if (test_bit(status, &priv->status)) {
+			IWL_WARN(priv,
+				"%s uCode already alive? "
+				"Waiting for alive anyway\n",
+				(status == STATUS_INIT_UCODE_ALIVE)
+				? "INIT" : "Runtime");
+			clear_bit(status, &priv->status);
+		}
+		ret = wait_event_interruptible_timeout(
+				priv->wait_command_queue,
+				test_bit(status, &priv->status),
+				UCODE_ALIVE_TIMEOUT);
+		if (!ret) {
+			if (!test_bit(status, &priv->status)) {
+				priv->ucode_type =
+					(status == STATUS_INIT_UCODE_ALIVE)
+					? UCODE_NONE : UCODE_INIT;
+				IWL_ERR(priv,
+					"%s timeout after %dms\n",
+					(status == STATUS_INIT_UCODE_ALIVE)
+					? "INIT" : "Runtime",
+					jiffies_to_msecs(UCODE_ALIVE_TIMEOUT));
+				continue;
+			}
+		}
 		IWL_DEBUG_INFO(priv, DRV_NAME " is coming up\n");
 
 		return 0;