diff options
| author | Sujith Manoharan <c_manoha@qca.qualcomm.com> | 2013-12-06 16:28:45 +0530 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2013-12-09 15:37:58 -0500 |
| commit | 0f978bfaf2600040f9826f394eb12e023bef3068 (patch) | |
| tree | 57d58a226a986fc7cf0ed4db0c9d041d0f68884e /drivers/net/wireless/ath/ath9k/init.c | |
| parent | 492f478d89b28c97166e4540aa13ac0e7abaa29f (diff) | |
ath9k: Use a separate TX gain table for WZR-HP-G450H
The Buffalo device WZR-HP-G450H uses the index 3 for TX gain,
which is set to the high_power table currently. Later variants
of the router use the same index, but instead refer to the
low_ob_db gain table. This is not handled in the driver since
there is no way to distinguish board revisions and the high_power
table is used (incorrectly) for the newer variants.
By default, devices based on AR9300 using the TX gain index 3 have
to use the high_power table. To make sure that WZR-HP-G450H is not
broken when the high_power table is updated, use a separate array
based on information obtained from the platform data.
The current situation where only the original variant of WZR-HP-G450H
works properly stays unchanged.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/init.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/init.c | 36 |
1 files changed, 27 insertions, 9 deletions
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c index 5a0b7e82c85..609b7e13f3f 100644 --- a/drivers/net/wireless/ath/ath9k/init.c +++ b/drivers/net/wireless/ath/ath9k/init.c @@ -554,7 +554,7 @@ static void ath9k_init_misc(struct ath_softc *sc) sc->spec_config.fft_period = 0xF; } -static void ath9k_init_platform(struct ath_softc *sc) +static void ath9k_init_pcoem_platform(struct ath_softc *sc) { struct ath_hw *ah = sc->sc_ah; struct ath9k_hw_capabilities *pCap = &ah->caps; @@ -664,6 +664,27 @@ static void ath9k_eeprom_release(struct ath_softc *sc) release_firmware(sc->sc_ah->eeprom_blob); } +static int ath9k_init_soc_platform(struct ath_softc *sc) +{ + struct ath9k_platform_data *pdata = sc->dev->platform_data; + struct ath_hw *ah = sc->sc_ah; + int ret = 0; + + if (!pdata) + return 0; + + if (pdata->eeprom_name) { + ret = ath9k_eeprom_request(sc, pdata->eeprom_name); + if (ret) + return ret; + } + + if (pdata->tx_gain_buffalo) + ah->config.tx_gain_buffalo = true; + + return ret; +} + static int ath9k_init_softc(u16 devid, struct ath_softc *sc, const struct ath_bus_ops *bus_ops) { @@ -717,7 +738,11 @@ static int ath9k_init_softc(u16 devid, struct ath_softc *sc, /* * Platform quirks. */ - ath9k_init_platform(sc); + ath9k_init_pcoem_platform(sc); + + ret = ath9k_init_soc_platform(sc); + if (ret) + return ret; /* * Enable WLAN/BT RX Antenna diversity only when: @@ -731,7 +756,6 @@ static int ath9k_init_softc(u16 devid, struct ath_softc *sc, common->bt_ant_diversity = 1; spin_lock_init(&common->cc_lock); - spin_lock_init(&sc->sc_serial_rw); spin_lock_init(&sc->sc_pm_lock); mutex_init(&sc->mutex); @@ -753,12 +777,6 @@ static int ath9k_init_softc(u16 devid, struct ath_softc *sc, ath_read_cachesize(common, &csz); common->cachelsz = csz << 2; /* convert to bytes */ - if (pdata && pdata->eeprom_name) { - ret = ath9k_eeprom_request(sc, pdata->eeprom_name); - if (ret) - return ret; - } - /* Initializes the hardware for all supported chipsets */ ret = ath9k_hw_init(ah); if (ret) |