From 311dce71b6af263a630717d77bd49cffc0d122a5 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Tue, 4 Jan 2011 16:22:01 -0800
Subject: [PATCH] iwlagn: properly wait for PAN disable
Previously I hacked this with an msleep(300)
which was fine since we never had longer PAN
time slots, but now that we will have them I
need to fix that. Use the new notification
wait support to properly wait for the WIPAN
deactivation complete signal from the ucode.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
drivers/net/wireless/iwlwifi/iwl-agn-rxon.c | 15 ++++++++++++---
drivers/net/wireless/iwlwifi/iwl-commands.h | 1 +
drivers/net/wireless/iwlwifi/iwl-hcmd.c | 1 +
3 files changed, 14 insertions(+), 3 deletions(-)
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c b/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c
index 6d140bd53291..99e96508b1dc 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rxon.c
@@ -52,10 +52,14 @@ static int iwlagn_disable_pan(struct iwl_priv *priv,
struct iwl_rxon_context *ctx,
struct iwl_rxon_cmd *send)
{
+ struct iwl_notification_wait disable_wait;
__le32 old_filter = send->filter_flags;
u8 old_dev_type = send->dev_type;
int ret;
+ iwlagn_init_notification_wait(priv, &disable_wait, NULL,
+ REPLY_WIPAN_DEACTIVATION_COMPLETE);
+
send->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
send->dev_type = RXON_DEV_TYPE_P2P;
ret = iwl_send_cmd_pdu(priv, ctx->rxon_cmd, sizeof(*send), send);
@@ -63,11 +67,16 @@ static int iwlagn_disable_pan(struct iwl_priv *priv,
send->filter_flags = old_filter;
send->dev_type = old_dev_type;
- if (ret)
+ if (ret) {
IWL_ERR(priv, "Error disabling PAN (%d)\n", ret);
+ iwlagn_remove_notification(priv, &disable_wait);
+ } else {
+ signed long wait_res;
- /* FIXME: WAIT FOR PAN DISABLE */
- msleep(300);
+ wait_res = iwlagn_wait_notification(priv, &disable_wait, HZ);
+ if (wait_res == 0)
+ IWL_ERR(priv, "Timed out waiting for PAN disable\n");
+ }
return ret;
}
diff --git a/drivers/net/wireless/iwlwifi/iwl-commands.h b/drivers/net/wireless/iwlwifi/iwl-commands.h
index f893d4a6aa87..abe2479215f0 100644
--- a/drivers/net/wireless/iwlwifi/iwl-commands.h
+++ b/drivers/net/wireless/iwlwifi/iwl-commands.h
@@ -189,6 +189,7 @@ enum {
REPLY_WIPAN_WEPKEY = 0xb8, /* use REPLY_WEPKEY structure */
REPLY_WIPAN_P2P_CHANNEL_SWITCH = 0xb9,
REPLY_WIPAN_NOA_NOTIFICATION = 0xbc,
+ REPLY_WIPAN_DEACTIVATION_COMPLETE = 0xbd,
REPLY_MAX = 0xff
};
diff --git a/drivers/net/wireless/iwlwifi/iwl-hcmd.c b/drivers/net/wireless/iwlwifi/iwl-hcmd.c
index c373b53babea..e4b953d7b7bf 100644
--- a/drivers/net/wireless/iwlwifi/iwl-hcmd.c
+++ b/drivers/net/wireless/iwlwifi/iwl-hcmd.c
@@ -108,6 +108,7 @@ const char *get_cmd_string(u8 cmd)
IWL_CMD(REPLY_WIPAN_WEPKEY);
IWL_CMD(REPLY_WIPAN_P2P_CHANNEL_SWITCH);
IWL_CMD(REPLY_WIPAN_NOA_NOTIFICATION);
+ IWL_CMD(REPLY_WIPAN_DEACTIVATION_COMPLETE);
default:
return "UNKNOWN";
--
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