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authorGabor Juhos <juhosg@openwrt.org>2012-10-27 08:55:36 +0000
committerGabor Juhos <juhosg@openwrt.org>2012-10-27 08:55:36 +0000
commite8fc46b7c59a7ce32dd923455527ef32a7591501 (patch)
tree753f9a21193b6becf71fe3713d1ec9eb089b868e
parentc92998f9d9287559a3d94ff799fc9e39eb3fb290 (diff)
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generic: allow to disable [25]GHz support in ath9k via platform data
Signed-off-by: Gabor Juhos <juhosg@openwrt.org> SVN-Revision: 33954
-rw-r--r--package/mac80211/patches/b01-ath9k-allow-to-disable-bands-via-platform-data.patch70
-rw-r--r--target/linux/generic/files/include/linux/ath9k_platform.h3
2 files changed, 73 insertions, 0 deletions
diff --git a/package/mac80211/patches/b01-ath9k-allow-to-disable-bands-via-platform-data.patch b/package/mac80211/patches/b01-ath9k-allow-to-disable-bands-via-platform-data.patch
new file mode 100644
index 0000000000..02644bfc65
--- /dev/null
+++ b/package/mac80211/patches/b01-ath9k-allow-to-disable-bands-via-platform-data.patch
@@ -0,0 +1,70 @@
+--- a/include/linux/ath9k_platform.h
++++ b/include/linux/ath9k_platform.h
+@@ -31,6 +31,9 @@ struct ath9k_platform_data {
+
+ bool endian_check;
+ bool is_clk_25mhz;
++ bool disable_2ghz;
++ bool disable_5ghz;
++
+ int (*get_mac_revision)(void);
+ int (*external_reset)(void);
+
+--- a/drivers/net/wireless/ath/ath9k/hw.c
++++ b/drivers/net/wireless/ath/ath9k/hw.c
+@@ -2395,17 +2395,25 @@ int ath9k_hw_fill_cap_info(struct ath_hw
+ }
+
+ eeval = ah->eep_ops->get_eeprom(ah, EEP_OP_MODE);
+- if ((eeval & (AR5416_OPFLAGS_11G | AR5416_OPFLAGS_11A)) == 0) {
+- ath_err(common,
+- "no band has been marked as supported in EEPROM\n");
+- return -EINVAL;
++
++ if (eeval & AR5416_OPFLAGS_11A) {
++ if (ah->disable_5ghz)
++ ath_warn(common, "disabling 5GHz band\n");
++ else
++ pCap->hw_caps |= ATH9K_HW_CAP_5GHZ;
+ }
+
+- if (eeval & AR5416_OPFLAGS_11A)
+- pCap->hw_caps |= ATH9K_HW_CAP_5GHZ;
++ if (eeval & AR5416_OPFLAGS_11G) {
++ if (ah->disable_2ghz)
++ ath_warn(common, "disabling 2GHz band\n");
++ else
++ pCap->hw_caps |= ATH9K_HW_CAP_2GHZ;
++ }
+
+- if (eeval & AR5416_OPFLAGS_11G)
+- pCap->hw_caps |= ATH9K_HW_CAP_2GHZ;
++ if ((pCap->hw_caps & (ATH9K_HW_CAP_2GHZ | ATH9K_HW_CAP_5GHZ)) == 0) {
++ ath_err(common, "both bands are disabled\n");
++ return -EINVAL;
++ }
+
+ if (AR_SREV_9485(ah) || AR_SREV_9285(ah) || AR_SREV_9330(ah))
+ chip_chainmask = 1;
+--- a/drivers/net/wireless/ath/ath9k/hw.h
++++ b/drivers/net/wireless/ath/ath9k/hw.h
+@@ -918,6 +918,8 @@ struct ath_hw {
+ bool is_clk_25mhz;
+ int (*get_mac_revision)(void);
+ int (*external_reset)(void);
++ bool disable_2ghz;
++ bool disable_5ghz;
+ };
+
+ struct ath_bus_ops {
+--- a/drivers/net/wireless/ath/ath9k/init.c
++++ b/drivers/net/wireless/ath/ath9k/init.c
+@@ -537,6 +537,8 @@ static int ath9k_init_softc(u16 devid, s
+ ah->is_clk_25mhz = pdata->is_clk_25mhz;
+ ah->get_mac_revision = pdata->get_mac_revision;
+ ah->external_reset = pdata->external_reset;
++ ah->disable_2ghz = pdata->disable_2ghz;
++ ah->disable_5ghz = pdata->disable_5ghz;
+ if (!pdata->endian_check)
+ ah->ah_flags |= AH_NO_EEP_SWAP;
+ }
diff --git a/target/linux/generic/files/include/linux/ath9k_platform.h b/target/linux/generic/files/include/linux/ath9k_platform.h
index 15b913730f..53b25d2296 100644
--- a/target/linux/generic/files/include/linux/ath9k_platform.h
+++ b/target/linux/generic/files/include/linux/ath9k_platform.h
@@ -31,6 +31,9 @@ struct ath9k_platform_data {
bool endian_check;
bool is_clk_25mhz;
+ bool disable_2ghz;
+ bool disable_5ghz;
+
int (*get_mac_revision)(void);
int (*external_reset)(void);