diff options
| author | Gabor Juhos <juhosg@openwrt.org> | 2013-10-03 22:00:41 +0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2013-10-10 21:53:07 +0400 |
| commit | e25aa82a89db9e3b09d02b5481aa375c7712a10d (patch) | |
| tree | fc48f449ba793cffcef9f785088e7e1214668c73 /drivers/net/wireless | |
| parent | 0beb1bbf19c72f17809e42b8f33522a55c2cc18c (diff) | |
| download | linux-e25aa82a89db9e3b09d02b5481aa375c7712a10d.tar.xz | |
rt2x00: rt2800lib: fix VGC adjustment for RT3572 and RT3593
The Ralink DPO_RT5572_LinuxSTA_2.6.1.3_20121022
reference driver uses different RSSI threshold
and VGC adjustment values for the RT3572 and
RT3593 chipsets.
Update the rt2800_link_tuner function to use the
same values. Also change the comment in the function
to make it more generic.
References:
RT35xx_ChipAGCAdjust function in chips/rt35xx.c
RSSI_FOR_MID_LOW_SENSIBILITY constant in include/chip/rtmp_phy.h
RT3593_R66_MID_LOW_SENS_GET macro in include/chip/rt3593.h
RT3593_R66_NON_MID_LOW_SEMS_GET macro in include/chips/rt3593.h
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless')
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2800lib.c | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c index be68b0485833..a114cab413e9 100644 --- a/drivers/net/wireless/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/rt2x00/rt2800lib.c @@ -4471,19 +4471,34 @@ void rt2800_link_tuner(struct rt2x00_dev *rt2x00dev, struct link_qual *qual, if (rt2x00_rt_rev(rt2x00dev, RT2860, REV_RT2860C)) return; - /* - * When RSSI is better then -80 increase VGC level with 0x10, except - * for rt5592 chip. + + /* When RSSI is better than a certain threshold, increase VGC + * with a chip specific value in order to improve the balance + * between sensibility and noise isolation. */ vgc = rt2800_get_default_vgc(rt2x00dev); - if (rt2x00_rt(rt2x00dev, RT5592)) { + switch (rt2x00dev->chip.rt) { + case RT3572: + case RT3593: + if (qual->rssi > -65) { + if (rt2x00dev->curr_band == IEEE80211_BAND_2GHZ) + vgc += 0x20; + else + vgc += 0x10; + } + break; + + case RT5592: if (qual->rssi > -65) vgc += 0x20; - } else { + break; + + default: if (qual->rssi > -80) vgc += 0x10; + break; } rt2800_set_vgc(rt2x00dev, qual, vgc); |