iwlwifi: Adjust blink rate to compensate Clock difference
Adjust led blink rate to compensate on a MAC Clock difference on every
HW. Led blink rate analysis showed an average deviation of 0% on 3945,
5% on 4965 HW and 20% on 5000 series and up.
Need to compensate on the led on/off time per HW according to the
deviation to achieve the desired led frequency
The calculation is: (100-averageDeviation)/100 * blinkTime
For code efficiency the calculation will be:
compensation = (100 - averageDeviation) * 64 / 100
NewBlinkTime = (compensation * BlinkTime) / 64
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c
index e1b3785..c81fd4b 100644
--- a/drivers/net/wireless/iwlwifi/iwl-5000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-5000.c
@@ -1656,6 +1656,7 @@
.valid_rx_ant = ANT_ABC,
.need_pll_cfg = true,
.ht_greenfield_support = true,
+ .led_compensation = 51,
};
struct iwl_cfg iwl5100_bg_cfg = {
@@ -1673,6 +1674,7 @@
.valid_rx_ant = ANT_AB,
.need_pll_cfg = true,
.ht_greenfield_support = true,
+ .led_compensation = 51,
};
struct iwl_cfg iwl5100_abg_cfg = {
@@ -1690,6 +1692,7 @@
.valid_rx_ant = ANT_AB,
.need_pll_cfg = true,
.ht_greenfield_support = true,
+ .led_compensation = 51,
};
struct iwl_cfg iwl5100_agn_cfg = {
@@ -1707,6 +1710,7 @@
.valid_rx_ant = ANT_AB,
.need_pll_cfg = true,
.ht_greenfield_support = true,
+ .led_compensation = 51,
};
struct iwl_cfg iwl5350_agn_cfg = {
@@ -1724,6 +1728,7 @@
.valid_rx_ant = ANT_ABC,
.need_pll_cfg = true,
.ht_greenfield_support = true,
+ .led_compensation = 51,
};
struct iwl_cfg iwl5150_agn_cfg = {
@@ -1741,6 +1746,7 @@
.valid_rx_ant = ANT_AB,
.need_pll_cfg = true,
.ht_greenfield_support = true,
+ .led_compensation = 51,
};
MODULE_FIRMWARE(IWL5000_MODULE_FIRMWARE(IWL5000_UCODE_API_MAX));