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ath5k: replace modparam_all_channels with CONFIG_ATH5K_TEST_CHANNELS
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This stashes away this feature from standard kernel builds.

Signed-off-by: Luis R. Rodriguez <[email protected]>
Signed-off-by: John W. Linville <[email protected]>
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mcgrof authored and linvjw committed Jul 11, 2012
1 parent ce8126c commit 2f8684c
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Showing 2 changed files with 18 additions and 7 deletions.
8 changes: 8 additions & 0 deletions drivers/net/wireless/ath/ath5k/Kconfig
Original file line number Diff line number Diff line change
Expand Up @@ -64,3 +64,11 @@ config ATH5K_PCI
---help---
This adds support for PCI type chipsets of the 5xxx Atheros
family.

config ATH5K_TEST_CHANNELS
bool "Enables testing channels on ath5k"
depends on ATH5K && CFG80211_CERTIFICATION_ONUS
---help---
This enables non-standard IEEE 802.11 channels on ath5k, which
can be used for research purposes. This option should be disabled
unless doing research.
17 changes: 10 additions & 7 deletions drivers/net/wireless/ath/ath5k/base.c
Original file line number Diff line number Diff line change
Expand Up @@ -74,10 +74,6 @@ bool ath5k_modparam_nohwcrypt;
module_param_named(nohwcrypt, ath5k_modparam_nohwcrypt, bool, S_IRUGO);
MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption.");

static bool modparam_all_channels;
module_param_named(all_channels, modparam_all_channels, bool, S_IRUGO);
MODULE_PARM_DESC(all_channels, "Expose all channels the device can use.");

static bool modparam_fastchanswitch;
module_param_named(fastchanswitch, modparam_fastchanswitch, bool, S_IRUGO);
MODULE_PARM_DESC(fastchanswitch, "Enable fast channel switching for AR2413/AR5413 radios.");
Expand Down Expand Up @@ -258,8 +254,15 @@ static int ath5k_reg_notifier(struct wiphy *wiphy, struct regulatory_request *re
\********************/

/*
* Returns true for the channel numbers used without all_channels modparam.
* Returns true for the channel numbers used.
*/
#ifdef CONFIG_ATH5K_TEST_CHANNELS
static bool ath5k_is_standard_channel(short chan, enum ieee80211_band band)
{
return true;
}

#else
static bool ath5k_is_standard_channel(short chan, enum ieee80211_band band)
{
if (band == IEEE80211_BAND_2GHZ && chan <= 14)
Expand All @@ -276,6 +279,7 @@ static bool ath5k_is_standard_channel(short chan, enum ieee80211_band band)
/* 802.11j 4.9GHz (20MHz) */
(chan == 184 || chan == 188 || chan == 192 || chan == 196));
}
#endif

static unsigned int
ath5k_setup_channels(struct ath5k_hw *ah, struct ieee80211_channel *channels,
Expand Down Expand Up @@ -316,8 +320,7 @@ ath5k_setup_channels(struct ath5k_hw *ah, struct ieee80211_channel *channels,
if (!ath5k_channel_ok(ah, &channels[count]))
continue;

if (!modparam_all_channels &&
!ath5k_is_standard_channel(ch, band))
if (!ath5k_is_standard_channel(ch, band))
continue;

count++;
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