From f21dd005df95e0fc6a578342c61b5333ce2abc2b Mon Sep 17 00:00:00 2001 From: Wey-Yi Guy Date: Wed, 8 Dec 2010 15:34:52 -0800 Subject: [PATCH] iwlwifi: keep track of bt coex enable/disable stage For debugging purpose, keep track of the bt coex enable/disable state. Signed-off-by: Wey-Yi Guy --- drivers/net/wireless/iwlwifi/iwl-agn-debugfs.c | 3 +++ drivers/net/wireless/iwlwifi/iwl-agn-lib.c | 1 + drivers/net/wireless/iwlwifi/iwl-core.c | 1 + drivers/net/wireless/iwlwifi/iwl-debugfs.c | 7 +++++++ drivers/net/wireless/iwlwifi/iwl-dev.h | 1 + 5 files changed, 13 insertions(+) diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-agn-debugfs.c index a358d4334a1..a6dbd8983da 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-debugfs.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-debugfs.c @@ -856,6 +856,9 @@ ssize_t iwl_ucode_bt_stats_read(struct file *file, if (!iwl_is_alive(priv)) return -EAGAIN; + if (!priv->bt_enable_flag) + return -EINVAL; + /* make request to uCode to retrieve statistics information */ mutex_lock(&priv->mutex); ret = iwl_send_statistics_request(priv, CMD_SYNC, false); diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c index 7c8010f7ce5..4bc82fcf165 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c @@ -1845,6 +1845,7 @@ void iwlagn_send_advance_bt_config(struct iwl_priv *priv) bt_cmd.flags |= IWLAGN_BT_FLAG_CHANNEL_INHIBITION; IWL_DEBUG_INFO(priv, "BT coex flag: 0X%x\n", bt_cmd.flags); } + priv->bt_enable_flag = bt_cmd.flags; if (priv->bt_full_concurrent) memcpy(bt_cmd.bt3_lookup_table, iwlagn_concurrent_lookup, sizeof(iwlagn_concurrent_lookup)); diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c index 06cdc60ff87..efbde1f1a8b 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.c +++ b/drivers/net/wireless/iwlwifi/iwl-core.c @@ -1223,6 +1223,7 @@ void iwl_send_bt_config(struct iwl_priv *priv) else bt_cmd.flags = BT_COEX_ENABLE; + priv->bt_enable_flag = bt_cmd.flags; IWL_DEBUG_INFO(priv, "BT coex %s\n", (bt_cmd.flags == BT_COEX_DISABLE) ? "disable" : "active"); diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c index d36836376e6..6fe80b5e7a1 100644 --- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c +++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c @@ -1567,6 +1567,13 @@ static ssize_t iwl_dbgfs_bt_traffic_read(struct file *file, const size_t bufsz = sizeof(buf); ssize_t ret; + if (!priv->bt_enable_flag) { + pos += scnprintf(buf + pos, bufsz - pos, "BT coex disabled\n"); + ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); + return ret; + } + pos += scnprintf(buf + pos, bufsz - pos, "BT enable flag: 0x%x\n", + priv->bt_enable_flag); pos += scnprintf(buf + pos, bufsz - pos, "BT in %s mode\n", priv->bt_full_concurrent ? "full concurrency" : "3-wire"); pos += scnprintf(buf + pos, bufsz - pos, "BT status: %s, " diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h index 836f1816b11..8dda67850af 100644 --- a/drivers/net/wireless/iwlwifi/iwl-dev.h +++ b/drivers/net/wireless/iwlwifi/iwl-dev.h @@ -1468,6 +1468,7 @@ struct iwl_priv { }; /* bt coex */ + u8 bt_enable_flag; u8 bt_status; u8 bt_traffic_load, last_bt_traffic_load; bool bt_ch_announce; -- 2.20.1