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authorSteve deRosier <steve@cozybit.com>2010-04-25 14:40:46 -0700
committerJohn W. Linville <linville@tuxdriver.com>2010-04-26 14:21:26 -0400
commite9bd5bcde7af27ebb92bb866afde5ef5e4f3dc6c (patch)
tree38577d44639d8b0f00242d3f83971ea7db8977f0 /drivers/net/wireless/libertas_tf/main.c
parent9a8b424ea8b64da83b6868423dcd0f3c259fdde0 (diff)
libertastf: add configurable debug messages
Add the same type of configurable debug messages to libertas_tf as already exist in the libertas driver. This has facilitated creation of a interface specification and will facilitate future development of this driver. Signed-off-by: Steve deRosier <steve@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/libertas_tf/main.c')
-rw-r--r--drivers/net/wireless/libertas_tf/main.c87
1 files changed, 83 insertions, 4 deletions
diff --git a/drivers/net/wireless/libertas_tf/main.c b/drivers/net/wireless/libertas_tf/main.c
index 6ab30033c26c..3b1db84addb5 100644
--- a/drivers/net/wireless/libertas_tf/main.c
+++ b/drivers/net/wireless/libertas_tf/main.c
@@ -7,6 +7,7 @@
* the Free Software Foundation; either version 2 of the License, or (at
* your option) any later version.
*/
+#include "deb_defs.h"
#include "libertas_tf.h"
#include "linux/etherdevice.h"
@@ -16,7 +17,17 @@
#define LBTF_FW_VER_MAX 0x0584ffff
#define QOS_CONTROL_LEN 2
-static const char lbtf_driver_version[] = "THINFIRM-USB8388-" DRIVER_RELEASE_VERSION;
+/* Module parameters */
+unsigned int lbtf_debug;
+EXPORT_SYMBOL_GPL(lbtf_debug);
+module_param_named(libertas_tf_debug, lbtf_debug, int, 0644);
+
+static const char lbtf_driver_version[] = "THINFIRM-USB8388-" DRIVER_RELEASE_VERSION
+#ifdef DEBUG
+ "-dbg"
+#endif
+ "";
+
struct workqueue_struct *lbtf_wq;
static const struct ieee80211_channel lbtf_channels[] = {
@@ -79,6 +90,9 @@ static void lbtf_cmd_work(struct work_struct *work)
{
struct lbtf_private *priv = container_of(work, struct lbtf_private,
cmd_work);
+
+ lbtf_deb_enter(LBTF_DEB_CMD);
+
spin_lock_irq(&priv->driver_lock);
/* command response? */
if (priv->cmd_response_rxed) {
@@ -106,11 +120,16 @@ static void lbtf_cmd_work(struct work_struct *work)
priv->cmd_timed_out = 0;
spin_unlock_irq(&priv->driver_lock);
- if (!priv->fw_ready)
+ if (!priv->fw_ready) {
+ lbtf_deb_leave_args(LBTF_DEB_CMD, "fw not ready");
return;
+ }
+
/* Execute the next command */
if (!priv->cur_cmd)
lbtf_execute_next_command(priv);
+
+ lbtf_deb_leave(LBTF_DEB_CMD);
}
/**
@@ -124,6 +143,7 @@ static int lbtf_setup_firmware(struct lbtf_private *priv)
{
int ret = -1;
+ lbtf_deb_enter(LBTF_DEB_FW);
/*
* Read priv address from HW
*/
@@ -139,6 +159,7 @@ static int lbtf_setup_firmware(struct lbtf_private *priv)
ret = 0;
done:
+ lbtf_deb_leave_args(LBTF_DEB_FW, "ret: %d", ret);
return ret;
}
@@ -150,6 +171,7 @@ static void command_timer_fn(unsigned long data)
{
struct lbtf_private *priv = (struct lbtf_private *)data;
unsigned long flags;
+ lbtf_deb_enter(LBTF_DEB_CMD);
spin_lock_irqsave(&priv->driver_lock, flags);
@@ -166,10 +188,12 @@ static void command_timer_fn(unsigned long data)
queue_work(lbtf_wq, &priv->cmd_work);
out:
spin_unlock_irqrestore(&priv->driver_lock, flags);
+ lbtf_deb_leave(LBTF_DEB_CMD);
}
static int lbtf_init_adapter(struct lbtf_private *priv)
{
+ lbtf_deb_enter(LBTF_DEB_MAIN);
memset(priv->current_addr, 0xff, ETH_ALEN);
mutex_init(&priv->lock);
@@ -186,13 +210,16 @@ static int lbtf_init_adapter(struct lbtf_private *priv)
if (lbtf_allocate_cmd_buffer(priv))
return -1;
+ lbtf_deb_leave(LBTF_DEB_MAIN);
return 0;
}
static void lbtf_free_adapter(struct lbtf_private *priv)
{
+ lbtf_deb_enter(LBTF_DEB_MAIN);
lbtf_free_cmd_buffer(priv);
del_timer(&priv->command_timer);
+ lbtf_deb_leave(LBTF_DEB_MAIN);
}
static int lbtf_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
@@ -219,14 +246,18 @@ static void lbtf_tx_work(struct work_struct *work)
struct sk_buff *skb = NULL;
int err;
+ lbtf_deb_enter(LBTF_DEB_MACOPS | LBTF_DEB_TX);
+
if ((priv->vif->type == NL80211_IFTYPE_AP) &&
(!skb_queue_empty(&priv->bc_ps_buf)))
skb = skb_dequeue(&priv->bc_ps_buf);
else if (priv->skb_to_tx) {
skb = priv->skb_to_tx;
priv->skb_to_tx = NULL;
- } else
+ } else {
+ lbtf_deb_leave(LBTF_DEB_MACOPS | LBTF_DEB_TX);
return;
+ }
len = skb->len;
info = IEEE80211_SKB_CB(skb);
@@ -234,6 +265,7 @@ static void lbtf_tx_work(struct work_struct *work)
if (priv->surpriseremoved) {
dev_kfree_skb_any(skb);
+ lbtf_deb_leave(LBTF_DEB_MACOPS | LBTF_DEB_TX);
return;
}
@@ -247,6 +279,7 @@ static void lbtf_tx_work(struct work_struct *work)
ETH_ALEN);
txpd->tx_packet_length = cpu_to_le16(len);
txpd->tx_packet_location = cpu_to_le32(sizeof(struct txpd));
+ lbtf_deb_hex(LBTF_DEB_TX, "TX Data", skb->data, min_t(unsigned int, skb->len, 100));
BUG_ON(priv->tx_skb);
spin_lock_irq(&priv->driver_lock);
priv->tx_skb = skb;
@@ -255,7 +288,9 @@ static void lbtf_tx_work(struct work_struct *work)
if (err) {
dev_kfree_skb_any(skb);
priv->tx_skb = NULL;
+ pr_err("TX error: %d", err);
}
+ lbtf_deb_leave(LBTF_DEB_MACOPS | LBTF_DEB_TX);
}
static int lbtf_op_start(struct ieee80211_hw *hw)
@@ -264,6 +299,8 @@ static int lbtf_op_start(struct ieee80211_hw *hw)
void *card = priv->card;
int ret = -1;
+ lbtf_deb_enter(LBTF_DEB_MACOPS);
+
if (!priv->fw_ready)
/* Upload firmware */
if (priv->hw_prog_firmware(card))
@@ -284,10 +321,12 @@ static int lbtf_op_start(struct ieee80211_hw *hw)
}
printk(KERN_INFO "libertastf: Marvell WLAN 802.11 thinfirm adapter\n");
+ lbtf_deb_leave(LBTF_DEB_MACOPS);
return 0;
err_prog_firmware:
priv->hw_reset_device(card);
+ lbtf_deb_leave_args(LBTF_DEB_MACOPS, "error programing fw; ret=%d", ret);
return ret;
}
@@ -298,6 +337,9 @@ static void lbtf_op_stop(struct ieee80211_hw *hw)
struct sk_buff *skb;
struct cmd_ctrl_node *cmdnode;
+
+ lbtf_deb_enter(LBTF_DEB_MACOPS);
+
/* Flush pending command nodes */
spin_lock_irqsave(&priv->driver_lock, flags);
list_for_each_entry(cmdnode, &priv->cmdpendingq, list) {
@@ -314,6 +356,7 @@ static void lbtf_op_stop(struct ieee80211_hw *hw)
priv->radioon = RADIO_OFF;
lbtf_set_radio_control(priv);
+ lbtf_deb_leave(LBTF_DEB_MACOPS);
return;
}
@@ -321,6 +364,7 @@ static int lbtf_op_add_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
struct lbtf_private *priv = hw->priv;
+ lbtf_deb_enter(LBTF_DEB_MACOPS);
if (priv->vif != NULL)
return -EOPNOTSUPP;
@@ -338,6 +382,7 @@ static int lbtf_op_add_interface(struct ieee80211_hw *hw,
return -EOPNOTSUPP;
}
lbtf_set_mac_address(priv, (u8 *) vif->addr);
+ lbtf_deb_leave(LBTF_DEB_MACOPS);
return 0;
}
@@ -345,6 +390,7 @@ static void lbtf_op_remove_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
struct lbtf_private *priv = hw->priv;
+ lbtf_deb_enter(LBTF_DEB_MACOPS);
if (priv->vif->type == NL80211_IFTYPE_AP ||
priv->vif->type == NL80211_IFTYPE_MESH_POINT)
@@ -352,17 +398,20 @@ static void lbtf_op_remove_interface(struct ieee80211_hw *hw,
lbtf_set_mode(priv, LBTF_PASSIVE_MODE);
lbtf_set_bssid(priv, 0, NULL);
priv->vif = NULL;
+ lbtf_deb_leave(LBTF_DEB_MACOPS);
}
static int lbtf_op_config(struct ieee80211_hw *hw, u32 changed)
{
struct lbtf_private *priv = hw->priv;
struct ieee80211_conf *conf = &hw->conf;
+ lbtf_deb_enter(LBTF_DEB_MACOPS);
if (conf->channel->center_freq != priv->cur_freq) {
priv->cur_freq = conf->channel->center_freq;
lbtf_set_channel(priv, conf->channel->hw_value);
}
+ lbtf_deb_leave(LBTF_DEB_MACOPS);
return 0;
}
@@ -395,11 +444,16 @@ static void lbtf_op_configure_filter(struct ieee80211_hw *hw,
{
struct lbtf_private *priv = hw->priv;
int old_mac_control = priv->mac_control;
+
+ lbtf_deb_enter(LBTF_DEB_MACOPS);
+
changed_flags &= SUPPORTED_FIF_FLAGS;
*new_flags &= SUPPORTED_FIF_FLAGS;
- if (!changed_flags)
+ if (!changed_flags) {
+ lbtf_deb_leave(LBTF_DEB_MACOPS);
return;
+ }
if (*new_flags & (FIF_PROMISC_IN_BSS))
priv->mac_control |= CMD_ACT_MAC_PROMISCUOUS_ENABLE;
@@ -425,6 +479,8 @@ static void lbtf_op_configure_filter(struct ieee80211_hw *hw,
if (priv->mac_control != old_mac_control)
lbtf_set_mac_control(priv);
+
+ lbtf_deb_leave(LBTF_DEB_MACOPS);
}
static void lbtf_op_bss_info_changed(struct ieee80211_hw *hw,
@@ -434,6 +490,7 @@ static void lbtf_op_bss_info_changed(struct ieee80211_hw *hw,
{
struct lbtf_private *priv = hw->priv;
struct sk_buff *beacon;
+ lbtf_deb_enter(LBTF_DEB_MACOPS);
if (changes & (BSS_CHANGED_BEACON | BSS_CHANGED_BEACON_INT)) {
switch (priv->vif->type) {
@@ -464,6 +521,8 @@ static void lbtf_op_bss_info_changed(struct ieee80211_hw *hw,
priv->preamble = CMD_TYPE_LONG_PREAMBLE;
lbtf_set_radio_control(priv);
}
+
+ lbtf_deb_leave(LBTF_DEB_MACOPS);
}
static const struct ieee80211_ops lbtf_ops = {
@@ -486,6 +545,8 @@ int lbtf_rx(struct lbtf_private *priv, struct sk_buff *skb)
unsigned int flags;
struct ieee80211_hdr *hdr;
+ lbtf_deb_enter(LBTF_DEB_RX);
+
prxpd = (struct rxpd *) skb->data;
stats.flag = 0;
@@ -516,7 +577,15 @@ int lbtf_rx(struct lbtf_private *priv, struct sk_buff *skb)
}
memcpy(IEEE80211_SKB_RXCB(skb), &stats, sizeof(stats));
+
+ lbtf_deb_rx("rx data: skb->len-sizeof(RxPd) = %d-%zd = %zd\n",
+ skb->len, sizeof(struct rxpd), skb->len - sizeof(struct rxpd));
+ lbtf_deb_hex(LBTF_DEB_RX, "RX Data", skb->data,
+ min_t(unsigned int, skb->len, 100));
+
ieee80211_rx_irqsafe(priv->hw, skb);
+
+ lbtf_deb_leave(LBTF_DEB_RX);
return 0;
}
EXPORT_SYMBOL_GPL(lbtf_rx);
@@ -533,6 +602,8 @@ struct lbtf_private *lbtf_add_card(void *card, struct device *dmdev)
struct ieee80211_hw *hw;
struct lbtf_private *priv = NULL;
+ lbtf_deb_enter(LBTF_DEB_MAIN);
+
hw = ieee80211_alloc_hw(sizeof(struct lbtf_private), &lbtf_ops);
if (!hw)
goto done;
@@ -575,6 +646,7 @@ err_init_adapter:
priv = NULL;
done:
+ lbtf_deb_leave_args(LBTF_DEB_MAIN, "priv %p", priv);
return priv;
}
EXPORT_SYMBOL_GPL(lbtf_add_card);
@@ -584,6 +656,8 @@ int lbtf_remove_card(struct lbtf_private *priv)
{
struct ieee80211_hw *hw = priv->hw;
+ lbtf_deb_enter(LBTF_DEB_MAIN);
+
priv->surpriseremoved = 1;
del_timer(&priv->command_timer);
lbtf_free_adapter(priv);
@@ -591,6 +665,7 @@ int lbtf_remove_card(struct lbtf_private *priv)
ieee80211_unregister_hw(hw);
ieee80211_free_hw(hw);
+ lbtf_deb_leave(LBTF_DEB_MAIN);
return 0;
}
EXPORT_SYMBOL_GPL(lbtf_remove_card);
@@ -649,17 +724,21 @@ EXPORT_SYMBOL_GPL(lbtf_bcn_sent);
static int __init lbtf_init_module(void)
{
+ lbtf_deb_enter(LBTF_DEB_MAIN);
lbtf_wq = create_workqueue("libertastf");
if (lbtf_wq == NULL) {
printk(KERN_ERR "libertastf: couldn't create workqueue\n");
return -ENOMEM;
}
+ lbtf_deb_leave(LBTF_DEB_MAIN);
return 0;
}
static void __exit lbtf_exit_module(void)
{
+ lbtf_deb_enter(LBTF_DEB_MAIN);
destroy_workqueue(lbtf_wq);
+ lbtf_deb_leave(LBTF_DEB_MAIN);
}
module_init(lbtf_init_module);