[PATCH] ipw2x00: Adding active 11a wireless band support for Intel 2915abg (ZZJ:Japan)

[Kei Kishiro <kei@kishiro.com>]

Hi all,


Current ipw2200 driver cannot establish 11a wireless connection
using 2915abg device with countrycode ZZJ(for Japan), because of
mismatch of wireless band definition.

Current wireless band definition at section "ZZJ" in ipw2200.c
(at /usr/src/linux-3.4/drivers/net/wireless/ipw2x00) is J52 and
this wireless band was already discontinued in Japan.

Definition about J52 should be replaced to active W52 band.
And new definition about W53 and W56 band should be added to
this section.


Because ipw2000 driver was already discontinued and Intel
provides no support anymore, I propose this offer to
this mailinglist.


More detailed information about J52,W52,W53 and W56 is below:

========
[J52]

 34ch: 5170MHz
 38ch: 5190MHz
 42ch: 5210MHz
 46ch: 5230MHz

* Japanese local band for 11a wireless connection.
* This band was defined by Soumushou (Ministry of Internal Affairs
  and Communications) in Japan before WRC-03 and had been making us
  irritated.
* Each channel have 10MHz offset from worldwide standard channels.
* This band was discontinued at 2008/05/31 and further use was
  forbidden.

[W52]

 36ch: 5180MHz
 40ch: 5200MHz
 44ch: 5220MHz
 48ch: 5240MHz

* Wireless band having compatibility with world wide standard 11a
  channels.
* This band was launched at 2005/05/16 in Japan.

[W53]

 52ch: 5260MHz
 56ch: 5280MHz
 60ch: 5300MHz
 64ch: 5320MHz

* Wireless band having compatibility with world wide standard 11a
  channels.
* This band was launched at 2005/05/16 in Japan (same as W52).
* This band needs DFS (Dynamic Frequency Selection) and TPC
  (Transmission Power Control) function for AP, passive scan
  function for client in Japan.

[W56]

 100ch: 5500MHz
 104ch: 5520MHz
 108ch: 5540MHz
 112ch: 5560MHz
 116ch: 5580MHz
 120ch: 5600MHz
 124ch: 5620MHz
 128ch: 5640MHz
 132ch: 5660MHz
 136ch: 5680MHz
 140ch: 5700MHz

* Wireless band having compatibility with world wide standard 11a
  channels.
* This band was launched at 2007/01 in Japan.
* This band needs DFS (Dynamic Frequency Selection) and TPC
  (Transmission Power Control) function for AP, passive scan
  function for client in Japan.

========

Thank you for your consideration.


Signed-off-by: Kei Kishiro <linux@kishiro.com>
---
diff --git a/drivers/net/wireless/ipw2x00/ipw2200.c b/drivers/net/wireless/ipw2x00/ipw2200.c
index 3dd80df..2d292a0 100644
--- a/drivers/net/wireless/ipw2x00/ipw2200.c
+++ b/drivers/net/wireless/ipw2x00/ipw2200.c
@@ -11157,7 +11157,7 @@ static const struct libipw_geo ipw_geos[] = {
 	       {5700, 140, LIBIPW_CH_PASSIVE_ONLY}},
 	 },

-	{			/* Custom Japan */
+	{			/* Custom Japan Modified */
 	 "ZZJ",
 	 .bg_channels = 14,
 	 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
@@ -11165,9 +11165,26 @@ static const struct libipw_geo ipw_geos[] = {
 		{2442, 7}, {2447, 8}, {2452, 9},
 		{2457, 10}, {2462, 11}, {2467, 12},
 		{2472, 13}, {2484, 14, LIBIPW_CH_B_ONLY}},
-	 .a_channels = 4,
-	 .a = {{5170, 34}, {5190, 38},
-	       {5210, 42}, {5230, 46}},
+	 .a_channels = 19,
+	 .a = {{5180, 36},
+	       {5200, 40},
+	       {5220, 44},
+	       {5240, 48},
+	       {5260, 52, LIBIPW_CH_PASSIVE_ONLY},
+	       {5280, 56, LIBIPW_CH_PASSIVE_ONLY},
+	       {5300, 60, LIBIPW_CH_PASSIVE_ONLY},
+	       {5320, 64, LIBIPW_CH_PASSIVE_ONLY},
+	       {5500, 100, LIBIPW_CH_PASSIVE_ONLY},
+	       {5520, 104, LIBIPW_CH_PASSIVE_ONLY},
+	       {5540, 108, LIBIPW_CH_PASSIVE_ONLY},
+	       {5560, 112, LIBIPW_CH_PASSIVE_ONLY},
+	       {5580, 116, LIBIPW_CH_PASSIVE_ONLY},
+	       {5600, 120, LIBIPW_CH_PASSIVE_ONLY},
+	       {5620, 124, LIBIPW_CH_PASSIVE_ONLY},
+	       {5640, 128, LIBIPW_CH_PASSIVE_ONLY},
+	       {5660, 132, LIBIPW_CH_PASSIVE_ONLY},
+	       {5680, 136, LIBIPW_CH_PASSIVE_ONLY},
+	       {5700, 140, LIBIPW_CH_PASSIVE_ONLY}},
 	 },

 	{			/* Rest of World */