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iwl3945: improve 3945 leds 

'tpt' is a delta throughput (number of packets) and is corelated
to brightness of the LED. We already maintain a delta of packets in
rxtxpackets. There is no need to calculate this delta again which
was affecting the behaviour of LEDS.

Also add two new callback functions for ASSOCIATED/DISASSOCIATED states
where LED's will be *on* for associated state and *off* for disassociated state.

This fixes
http://www.intellinuxwireless.org/bugzilla/show_bug.cgi?id=1771.

Signed-off-by: Abhijeet Kolekar <abhijeet.kolekar@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Abhijeet Kolekar 2009-05-21 13:44:21 -07:00 committed by John W. Linville
parent 2c7e57981f
commit 749e091ee0
1 changed files with 46 additions and 24 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

70
drivers/net/wireless/iwlwifi/iwl-3945-led.c
View File

@ -44,6 +44,15 @@
#include "iwl-core.h"
#include "iwl-dev.h"
#ifdef CONFIG_IWLWIFI_DEBUG
static const char *led_type_str[] = {
__stringify(IWL_LED_TRG_TX),
__stringify(IWL_LED_TRG_RX),
__stringify(IWL_LED_TRG_ASSOC),
__stringify(IWL_LED_TRG_RADIO),
NULL
};
#endif /* CONFIG_IWLWIFI_DEBUG */
static const struct {
u16 brightness;
@ -61,7 +70,7 @@ static const struct {
{10, 110, 110},
{5, 130, 130},
{0, 167, 167},
/*SOLID_ON*/
/* SOLID_ON */
{-1, IWL_LED_SOLID, 0}
};
@ -142,6 +151,30 @@ static int iwl3945_led_off(struct iwl_priv *priv, int led_id)
return iwl_send_led_cmd(priv, &led_cmd);
}
/*
* Set led on in case of association
* */
static int iwl3945_led_associate(struct iwl_priv *priv, int led_id)
{
IWL_DEBUG_LED(priv, "Associated\n");
priv->allow_blinking = 1;
return iwl3945_led_on(priv, led_id);
}
/* Set Led off in case of disassociation */
static int iwl3945_led_disassociate(struct iwl_priv *priv, int led_id)
{
IWL_DEBUG_LED(priv, "Disassociated\n");
priv->allow_blinking = 0;
if (iwl_is_rfkill(priv))
iwl3945_led_off(priv, led_id);
else
iwl3945_led_on(priv, led_id);
return 0;
}
/*
* brightness call back function for Tx/Rx LED
*/
@ -165,26 +198,21 @@ static void iwl3945_led_brightness_set(struct led_classdev *led_cdev,
enum led_brightness brightness)
{
struct iwl_led *led = container_of(led_cdev,
struct iwl_led, led_dev);
struct iwl_led, led_dev);
struct iwl_priv *priv = led->priv;
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
return;
IWL_DEBUG_LED(priv, "Led type = %s brightness = %d\n",
led_type_str[led->type], brightness);
switch (brightness) {
case LED_FULL:
if (led->type == IWL_LED_TRG_ASSOC) {
priv->allow_blinking = 1;
IWL_DEBUG_LED(priv, "MAC is associated\n");
}
if (led->led_on)
led->led_on(priv, IWL_LED_LINK);
break;
case LED_OFF:
if (led->type == IWL_LED_TRG_ASSOC) {
priv->allow_blinking = 0;
IWL_DEBUG_LED(priv, "MAC is disassociated\n");
}
if (led->led_off)
led->led_off(priv, IWL_LED_LINK);
break;
@ -197,8 +225,6 @@ static void iwl3945_led_brightness_set(struct led_classdev *led_cdev,
}
}
/*
* Register led class with the system
*/
@ -237,12 +263,12 @@ static int iwl3945_led_register_led(struct iwl_priv *priv,
static inline u8 get_blink_rate(struct iwl_priv *priv)
{
int index;
u64 current_tpt = priv->rxtxpackets;
s64 tpt = current_tpt - priv->led_tpt;
s64 tpt = priv->rxtxpackets;
if (tpt < 0)
tpt = -tpt;
priv->led_tpt = current_tpt;
IWL_DEBUG_LED(priv, "tpt %lld \n", (long long)tpt);
if (!priv->allow_blinking)
index = IWL_MAX_BLINK_TBL;
@ -250,13 +276,9 @@ static inline u8 get_blink_rate(struct iwl_priv *priv)
for (index = 0; index < IWL_MAX_BLINK_TBL; index++)
if (tpt > (blink_tbl[index].brightness * IWL_1MB_RATE))
break;
return index;
}
static inline int is_rf_kill(struct iwl_priv *priv)
{
return test_bit(STATUS_RF_KILL_HW, &priv->status) ||
test_bit(STATUS_RF_KILL_SW, &priv->status);
IWL_DEBUG_LED(priv, "LED BLINK IDX=%d\n", index);
return index;
}
/*
@ -272,7 +294,7 @@ void iwl3945_led_background(struct iwl_priv *priv)
priv->last_blink_time = 0;
return;
}
if (is_rf_kill(priv)) {
if (iwl_is_rfkill(priv)) {
priv->last_blink_time = 0;
return;
}
@ -341,8 +363,8 @@ int iwl3945_led_register(struct iwl_priv *priv)
IWL_LED_TRG_ASSOC, 0, trigger);
/* for assoc always turn led on */
priv->led[IWL_LED_TRG_ASSOC].led_on = iwl3945_led_on;
priv->led[IWL_LED_TRG_ASSOC].led_off = iwl3945_led_on;
priv->led[IWL_LED_TRG_ASSOC].led_on = iwl3945_led_associate;
priv->led[IWL_LED_TRG_ASSOC].led_off = iwl3945_led_disassociate;
priv->led[IWL_LED_TRG_ASSOC].led_pattern = NULL;
if (ret)