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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
lede-17.01
Gabor Juhos 2012-10-27 08:55:36 +00:00
parent c92998f9d9
commit e8fc46b7c5
2 changed files with 73 additions and 0 deletions
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70
package/mac80211/patches/b01-ath9k-allow-to-disable-bands-via-platform-data.patch Normal file
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@ -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;
}

3
target/linux/generic/files/include/linux/ath9k_platform.h
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@ -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);