* RTL8180L is hitting WARN_ON in net/wireless/scan.c:575
@ 2010-07-17 7:30 Pauli Nieminen
2010-07-19 20:47 ` [PATCH] rtl8180: improve signal reporting for rtl8185 hardware John W. Linville
2010-07-19 20:48 ` RTL8180L is hitting WARN_ON in net/wireless/scan.c:575 John W. Linville
0 siblings, 2 replies; 12+ messages in thread
From: Pauli Nieminen @ 2010-07-17 7:30 UTC (permalink / raw)
To: linux-wireless
Hi,
I'm testing 2.6.35-rc4+, I have problem that warning is spamming dmesg
when I have my wifi on. Actual problem caused y that problem is that I
can't scan/connect to any network with 2.6.35.
When I looked the code in warning it might be related to problem that
my wifi reports all signal strength to be 175 or 178 (if I remember
correctly). I'm now using 2.6.35 so I can't check the reported values
from scan results.
lspci:
00:09.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd.
RTL8180L 802.11b MAC [10ec:8180] (rev 20)
Subsystem: Realtek Semiconductor Co., Ltd. RTL8180L 802.11b MAC [10ec:8180]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 64 (8000ns min, 16000ns max), Cache Line Size: 32 bytes
Interrupt: pin A routed to IRQ 9
Region 0: I/O ports at 1000 [size=256]
Region 1: Memory at d0004800 (32-bit, non-prefetchable) [size=256]
Capabilities: <access denied>
Kernel driver in use: rtl8180
code line:
if (WARN_ON(wiphy->signal_type == CFG80211_SIGNAL_TYPE_UNSPEC &&
(signal < 0 || signal > 100)))
dmesg:
[ 953.750722] WARNING: at net/wireless/scan.c:575
cfg80211_inform_bss_frame+0x55/0x128 [cfg80211]()
[ 953.750726] Hardware name: Aspire 1350
[ 953.750729] Modules linked in: powernow_k7 cpufreq_userspace
cpufreq_powersave cpufreq_conservative cpufreq_stats parport_pc ppdev
lp parport binfmt_misc fuse ext2 ext4 jbd2 crc16 radeon ttm
drm_kms_helper drm netconsole configfs i2c_algo_bit dm_crypt dm_mod
snd_via82xx snd_via82xx_modem gameport snd_ac97_codec ac97_bus
snd_pcm_oss snd_mixer_oss snd_pcm snd_mpu401_uart arc4 snd_seq_midi
ecb snd_rawmidi rtl8180 snd_seq_midi_event mac80211 i2c_viapro
eeprom_93cx6 i2c_core pcmcia snd_seq via_ircc snd_timer snd_seq_device
yenta_socket cfg80211 psmouse pcmcia_rsrc snd irda tpm_tis video
pcspkr processor evdev pcmcia_core serio_raw battery output button
container ac tpm soundcore tpm_bios shpchp rfkill pci_hotplug
snd_page_alloc crc_ccitt ext3 jbd mbcache usbhid sg hid sr_mod sd_mod
cdrom crc_t10dif ata_generic pata_via libata uhci_hcd ehci_hcd usbcore
scsi_mod firewire_ohci floppy thermal via_rhine firewire_core
thermal_sys mii crc_itu_t nls_base [last unloaded: scsi_wait_scan]
[ 953.750817] Pid: 0, comm: swapper Tainted: G W 2.6.35-rc4+ #46
[ 953.750820] Call Trace:
[ 953.750828] [<c102f795>] ? warn_slowpath_common+0x6a/0x7b
[ 953.750839] [<e0e4564f>] ? cfg80211_inform_bss_frame+0x55/0x128 [cfg80211]
[ 953.750846] [<c102f7b3>] ? warn_slowpath_null+0xd/0x10
[ 953.750857] [<e0e4564f>] ? cfg80211_inform_bss_frame+0x55/0x128 [cfg80211]
[ 953.750870] [<e112c487>] ? ieee80211_bss_info_update+0x4a/0x13f [mac80211]
[ 953.750883] [<e112c683>] ? ieee80211_scan_rx+0xfa/0x130 [mac80211]
[ 953.750899] [<e1137dff>] ?
ieee80211_invoke_rx_handlers+0x67/0x166e [mac80211]
[ 953.750905] [<c10079a9>] ? sched_clock+0x9/0xd
[ 953.750911] [<c10471cf>] ? sched_clock_local+0x17/0x11e
[ 953.750920] [<c10454a7>] ? hrtimer_forward+0x10f/0x123
[ 953.750934] [<e11374c2>] ? prepare_for_handlers+0x22/0x25d [mac80211]
[ 953.750948] [<e1139b3f>] ? ieee80211_rx+0x739/0x796 [mac80211]
[ 953.750960] [<e1129444>] ? ieee80211_tasklet_handler+0x48/0xca [mac80211]
[ 953.750967] [<c10339c0>] ? tasklet_action+0x60/0xa4
[ 953.750972] [<c1034425>] ? __do_softirq+0xb1/0x156
[ 953.750977] [<c10344f8>] ? do_softirq+0x2e/0x38
[ 953.750982] [<c10345f6>] ? irq_exit+0x26/0x58
[ 953.750987] [<c10044b2>] ? do_IRQ+0x7d/0x8e
[ 953.750993] [<c10034b0>] ? common_interrupt+0x30/0x38
[ 953.751001] [<e0ecc1a9>] ? acpi_idle_enter_simple+0xef/0x129 [processor]
[ 953.751007] [<c11cce49>] ? cpuidle_idle_call+0x69/0xc0
[ 953.751013] [<c1002202>] ? cpu_idle+0x95/0xaf
[ 953.751018] [<c13bc8c2>] ? start_kernel+0x33a/0x33f
[ 953.751022] ---[ end trace 931bbdec61de23bf ]---
Pauli
^ permalink raw reply [flat|nested] 12+ messages in thread* [PATCH] rtl8180: improve signal reporting for rtl8185 hardware 2010-07-17 7:30 RTL8180L is hitting WARN_ON in net/wireless/scan.c:575 Pauli Nieminen @ 2010-07-19 20:47 ` John W. Linville 2010-07-20 20:56 ` [PATCH v2] " John W. Linville 2010-07-21 5:08 ` [PATCH] " Pauli Nieminen 2010-07-19 20:48 ` RTL8180L is hitting WARN_ON in net/wireless/scan.c:575 John W. Linville 1 sibling, 2 replies; 12+ messages in thread From: John W. Linville @ 2010-07-19 20:47 UTC (permalink / raw) To: linux-wireless; +Cc: Pauli Nieminen, John W. Linville The existing code seemed to be somewhat based on the datasheet, but varied substantially from the vendor-provided driver. This mirrors the handling of the rtl8185 case from that driver, but still neglects the specifics for the rtl8180 hardware. Those details are a bit muddled... Signed-off-by: John W. Linville <linville@tuxdriver.com> --- drivers/net/wireless/rtl818x/rtl8180_dev.c | 11 ++++++++--- 1 files changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/rtl818x/rtl8180_dev.c b/drivers/net/wireless/rtl818x/rtl8180_dev.c index 4270502..90046dc 100644 --- a/drivers/net/wireless/rtl818x/rtl8180_dev.c +++ b/drivers/net/wireless/rtl818x/rtl8180_dev.c @@ -103,6 +103,7 @@ static void rtl8180_handle_rx(struct ieee80211_hw *dev) { struct rtl8180_priv *priv = dev->priv; unsigned int count = 32; + u8 signal; while (count--) { struct rtl8180_rx_desc *entry = &priv->rx_ring[priv->rx_idx]; @@ -130,10 +131,14 @@ static void rtl8180_handle_rx(struct ieee80211_hw *dev) skb_put(skb, flags & 0xFFF); rx_status.antenna = (flags2 >> 15) & 1; - /* TODO: improve signal/rssi reporting */ - rx_status.signal = (flags2 >> 8) & 0x7F; - /* XXX: is this correct? */ rx_status.rate_idx = (flags >> 20) & 0xF; + /* TODO: improve signal/rssi reporting for !rtl8185 */ + signal = (flags2 >> 17) & 0x7F; + if (rx_status.rate_idx > 3) + signal = clamp_t(u8, signal, 25, 90); + else + signal = clamp_t(u8, signal, 30, 95); + rx_status.signal = signal; rx_status.freq = dev->conf.channel->center_freq; rx_status.band = dev->conf.channel->band; rx_status.mactime = le64_to_cpu(entry->tsft); -- 1.7.1.1 ^ permalink raw reply related [flat|nested] 12+ messages in thread
* [PATCH v2] rtl8180: improve signal reporting for rtl8185 hardware 2010-07-19 20:47 ` [PATCH] rtl8180: improve signal reporting for rtl8185 hardware John W. Linville @ 2010-07-20 20:56 ` John W. Linville 2010-07-21 5:08 ` [PATCH] " Pauli Nieminen 1 sibling, 0 replies; 12+ messages in thread From: John W. Linville @ 2010-07-20 20:56 UTC (permalink / raw) To: linux-wireless; +Cc: John W. Linville The existing code seemed to be somewhat based on the datasheet, but varied substantially from the vendor-provided driver. This mirrors the handling of the rtl8185 case from that driver, but still neglects the specifics for the rtl8180 hardware. Those details are a bit muddled... Signed-off-by: John W. Linville <linville@tuxdriver.com> --- v2 -- Add missing "subtract from constant" pieces of the signal formulas... drivers/net/wireless/rtl818x/rtl8180_dev.c | 11 ++++++++--- 1 files changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/rtl818x/rtl8180_dev.c b/drivers/net/wireless/rtl818x/rtl8180_dev.c index 4270502..31808f9 100644 --- a/drivers/net/wireless/rtl818x/rtl8180_dev.c +++ b/drivers/net/wireless/rtl818x/rtl8180_dev.c @@ -103,6 +103,7 @@ static void rtl8180_handle_rx(struct ieee80211_hw *dev) { struct rtl8180_priv *priv = dev->priv; unsigned int count = 32; + u8 signal; while (count--) { struct rtl8180_rx_desc *entry = &priv->rx_ring[priv->rx_idx]; @@ -130,10 +131,14 @@ static void rtl8180_handle_rx(struct ieee80211_hw *dev) skb_put(skb, flags & 0xFFF); rx_status.antenna = (flags2 >> 15) & 1; - /* TODO: improve signal/rssi reporting */ - rx_status.signal = (flags2 >> 8) & 0x7F; - /* XXX: is this correct? */ rx_status.rate_idx = (flags >> 20) & 0xF; + /* TODO: improve signal/rssi reporting for !rtl8185 */ + signal = (flags2 >> 17) & 0x7F; + if (rx_status.rate_idx > 3) + signal = 90 - clamp_t(u8, signal, 25, 90); + else + signal = 95 - clamp_t(u8, signal, 30, 95); + rx_status.signal = signal; rx_status.freq = dev->conf.channel->center_freq; rx_status.band = dev->conf.channel->band; rx_status.mactime = le64_to_cpu(entry->tsft); -- 1.7.1.1 ^ permalink raw reply related [flat|nested] 12+ messages in thread
* Re: [PATCH] rtl8180: improve signal reporting for rtl8185 hardware 2010-07-19 20:47 ` [PATCH] rtl8180: improve signal reporting for rtl8185 hardware John W. Linville 2010-07-20 20:56 ` [PATCH v2] " John W. Linville @ 2010-07-21 5:08 ` Pauli Nieminen 2010-07-21 13:33 ` John W. Linville 1 sibling, 1 reply; 12+ messages in thread From: Pauli Nieminen @ 2010-07-21 5:08 UTC (permalink / raw) To: John W. Linville; +Cc: linux-wireless On Mon, Jul 19, 2010 at 11:47 PM, John W. Linville <linville@tuxdriver.com> wrote: > The existing code seemed to be somewhat based on the datasheet, but > varied substantially from the vendor-provided driver. This mirrors the > handling of the rtl8185 case from that driver, but still neglects the > specifics for the rtl8180 hardware. Those details are a bit muddled... > > Signed-off-by: John W. Linville <linville@tuxdriver.com> > --- > drivers/net/wireless/rtl818x/rtl8180_dev.c | 11 ++++++++--- > 1 files changed, 8 insertions(+), 3 deletions(-) > > diff --git a/drivers/net/wireless/rtl818x/rtl8180_dev.c b/drivers/net/wireless/rtl818x/rtl8180_dev.c > index 4270502..90046dc 100644 > --- a/drivers/net/wireless/rtl818x/rtl8180_dev.c > +++ b/drivers/net/wireless/rtl818x/rtl8180_dev.c > @@ -103,6 +103,7 @@ static void rtl8180_handle_rx(struct ieee80211_hw *dev) > { > struct rtl8180_priv *priv = dev->priv; > unsigned int count = 32; > + u8 signal; > > while (count--) { > struct rtl8180_rx_desc *entry = &priv->rx_ring[priv->rx_idx]; > @@ -130,10 +131,14 @@ static void rtl8180_handle_rx(struct ieee80211_hw *dev) > skb_put(skb, flags & 0xFFF); > > rx_status.antenna = (flags2 >> 15) & 1; > - /* TODO: improve signal/rssi reporting */ > - rx_status.signal = (flags2 >> 8) & 0x7F; > - /* XXX: is this correct? */ > rx_status.rate_idx = (flags >> 20) & 0xF; > + /* TODO: improve signal/rssi reporting for !rtl8185 */ > + signal = (flags2 >> 17) & 0x7F; > + if (rx_status.rate_idx > 3) > + signal = clamp_t(u8, signal, 25, 90); > + else > + signal = clamp_t(u8, signal, 30, 95); > + rx_status.signal = signal; > rx_status.freq = dev->conf.channel->center_freq; > rx_status.band = dev->conf.channel->band; > rx_status.mactime = le64_to_cpu(entry->tsft); > -- > 1.7.1.1 > > I tested this version of patch. Patch didn't apply cleanly for some reason even tough when I mnauly typed it diff looks same. The patch lets me use wifi but signal value is not yet correct. When I have closed AP only 50 cm away from my laptop. sudo iwlist wlan0 scan | grep Signal Quality=46/100 Signal level=46/100 Quality=46/100 Signal level=46/100 Quality=46/100 Signal level=46/100 Quality=46/100 Signal level=46/100 Quality=46/100 Signal level=46/100 Quality=46/100 Signal level=46/100 Quality=46/100 Signal level=46/100 Quality=46/100 Signal level=46/100 Quality=46/100 Signal level=46/100 Quality=46/100 Signal level=46/100 Quality=46/100 Signal level=46/100 Quality=46/100 Signal level=46/100 Quality=46/100 Signal level=46/100 Quality=46/100 Signal level=46/100 Quality=46/100 Signal level=46/100 Quality=46/100 Signal level=46/100 ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH] rtl8180: improve signal reporting for rtl8185 hardware 2010-07-21 5:08 ` [PATCH] " Pauli Nieminen @ 2010-07-21 13:33 ` John W. Linville 2010-07-21 17:07 ` Pauli Nieminen 0 siblings, 1 reply; 12+ messages in thread From: John W. Linville @ 2010-07-21 13:33 UTC (permalink / raw) To: Pauli Nieminen; +Cc: linux-wireless On Wed, Jul 21, 2010 at 08:08:41AM +0300, Pauli Nieminen wrote: > On Mon, Jul 19, 2010 at 11:47 PM, John W. Linville > <linville@tuxdriver.com> wrote: > > The existing code seemed to be somewhat based on the datasheet, but > > varied substantially from the vendor-provided driver. This mirrors the > > handling of the rtl8185 case from that driver, but still neglects the > > specifics for the rtl8180 hardware. Those details are a bit muddled... > > > > Signed-off-by: John W. Linville <linville@tuxdriver.com> > > --- > > drivers/net/wireless/rtl818x/rtl8180_dev.c | 11 ++++++++--- > > 1 files changed, 8 insertions(+), 3 deletions(-) > I tested this version of patch. Patch didn't apply cleanly for some > reason even tough when I mnauly typed it diff looks same. Please try the v2 version of the patch. Some "back of the envelope" math suggests that the v2 version of the patch will give numbers more to your liking. John -- John W. Linville Someday the world will need a hero, and you linville@tuxdriver.com might be all we have. Be ready. ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH] rtl8180: improve signal reporting for rtl8185 hardware 2010-07-21 13:33 ` John W. Linville @ 2010-07-21 17:07 ` Pauli Nieminen 2010-07-21 17:19 ` John W. Linville 2010-07-21 17:22 ` [PATCH] rtl8180: improve signal reporting for rtl8185 hardware Pauli Nieminen 0 siblings, 2 replies; 12+ messages in thread From: Pauli Nieminen @ 2010-07-21 17:07 UTC (permalink / raw) To: John W. Linville; +Cc: linux-wireless On Wed, Jul 21, 2010 at 4:33 PM, John W. Linville <linville@tuxdriver.com> wrote: > On Wed, Jul 21, 2010 at 08:08:41AM +0300, Pauli Nieminen wrote: >> On Mon, Jul 19, 2010 at 11:47 PM, John W. Linville >> <linville@tuxdriver.com> wrote: >> > The existing code seemed to be somewhat based on the datasheet, but >> > varied substantially from the vendor-provided driver. This mirrors the >> > handling of the rtl8185 case from that driver, but still neglects the >> > specifics for the rtl8180 hardware. Those details are a bit muddled... >> > >> > Signed-off-by: John W. Linville <linville@tuxdriver.com> >> > --- >> > drivers/net/wireless/rtl818x/rtl8180_dev.c | 11 ++++++++--- >> > 1 files changed, 8 insertions(+), 3 deletions(-) > >> I tested this version of patch. Patch didn't apply cleanly for some >> reason even tough when I mnauly typed it diff looks same. > > Please try the v2 version of the patch. Some "back of the envelope" > math suggests that the v2 version of the patch will give numbers more > to your liking. > > John > -- > John W. Linville Someday the world will need a hero, and you > linville@tuxdriver.com might be all we have. Be ready. > But version 2 doesn't change the fact that driver is going to report same signal strength even tough I know that only one wifi should have 100 % strength and others less than 50 %. There is only one router in same room with me and all others routers are a lot more father away. So driver is either reading wrong bits from hardware or my hardware is broken. ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH] rtl8180: improve signal reporting for rtl8185 hardware 2010-07-21 17:07 ` Pauli Nieminen @ 2010-07-21 17:19 ` John W. Linville 2010-07-21 17:44 ` Pauli Nieminen 2010-07-21 20:30 ` [RFT] rtl8180: improve signal reporting for actual rtl8180 hardware John W. Linville 2010-07-21 17:22 ` [PATCH] rtl8180: improve signal reporting for rtl8185 hardware Pauli Nieminen 1 sibling, 2 replies; 12+ messages in thread From: John W. Linville @ 2010-07-21 17:19 UTC (permalink / raw) To: Pauli Nieminen; +Cc: linux-wireless On Wed, Jul 21, 2010 at 08:07:56PM +0300, Pauli Nieminen wrote: > On Wed, Jul 21, 2010 at 4:33 PM, John W. Linville > <linville@tuxdriver.com> wrote: > > On Wed, Jul 21, 2010 at 08:08:41AM +0300, Pauli Nieminen wrote: > >> On Mon, Jul 19, 2010 at 11:47 PM, John W. Linville > >> <linville@tuxdriver.com> wrote: > >> > The existing code seemed to be somewhat based on the datasheet, but > >> > varied substantially from the vendor-provided driver. This mirrors the > >> > handling of the rtl8185 case from that driver, but still neglects the > >> > specifics for the rtl8180 hardware. Those details are a bit muddled... > >> > > >> > Signed-off-by: John W. Linville <linville@tuxdriver.com> > >> > --- > >> > drivers/net/wireless/rtl818x/rtl8180_dev.c | 11 ++++++++--- > >> > 1 files changed, 8 insertions(+), 3 deletions(-) > > > >> I tested this version of patch. Patch didn't apply cleanly for some > >> reason even tough when I mnauly typed it diff looks same. > > > > Please try the v2 version of the patch. Some "back of the envelope" > > math suggests that the v2 version of the patch will give numbers more > > to your liking. > > > > John > > -- > > John W. Linville Someday the world will need a hero, and you > > linville@tuxdriver.com might be all we have. Be ready. > > > > But version 2 doesn't change the fact that driver is going to report > same signal strength even tough I know that only one wifi should have > 100 % strength and others less than 50 %. There is only one router in > same room with me and all others routers are a lot more father away. > So driver is either reading wrong bits from hardware or my hardware is > broken. Did you try the patch? I suspect not. I can't really decipher what problem you are reporting here with "100 % strength and others less than 50 %". In any case, if you have RTL8185 hardware then this patch changes the signal calculation to match what the Realtek-provided vendor driver does (which doesn't seem to match their datasheet, FWIW). If you have a better source of information then I am happy to receive it. If you have RTL8180 (i.e. not RTL8185) hardware then neither version of the patch is likely to help you much (beyond avoiding the warning you originally reported). I hope to improve that as well in the future. John -- John W. Linville Someday the world will need a hero, and you linville@tuxdriver.com might be all we have. Be ready. ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH] rtl8180: improve signal reporting for rtl8185 hardware 2010-07-21 17:19 ` John W. Linville @ 2010-07-21 17:44 ` Pauli Nieminen 2010-07-21 20:30 ` [RFT] rtl8180: improve signal reporting for actual rtl8180 hardware John W. Linville 1 sibling, 0 replies; 12+ messages in thread From: Pauli Nieminen @ 2010-07-21 17:44 UTC (permalink / raw) To: John W. Linville; +Cc: linux-wireless On Wed, Jul 21, 2010 at 8:19 PM, John W. Linville <linville@tuxdriver.com> wrote: > On Wed, Jul 21, 2010 at 08:07:56PM +0300, Pauli Nieminen wrote: >> On Wed, Jul 21, 2010 at 4:33 PM, John W. Linville >> <linville@tuxdriver.com> wrote: >> > On Wed, Jul 21, 2010 at 08:08:41AM +0300, Pauli Nieminen wrote: >> >> On Mon, Jul 19, 2010 at 11:47 PM, John W. Linville >> >> <linville@tuxdriver.com> wrote: >> >> > The existing code seemed to be somewhat based on the datasheet, but >> >> > varied substantially from the vendor-provided driver. This mirrors the >> >> > handling of the rtl8185 case from that driver, but still neglects the >> >> > specifics for the rtl8180 hardware. Those details are a bit muddled... >> >> > >> >> > Signed-off-by: John W. Linville <linville@tuxdriver.com> >> >> > --- >> >> > drivers/net/wireless/rtl818x/rtl8180_dev.c | 11 ++++++++--- >> >> > 1 files changed, 8 insertions(+), 3 deletions(-) >> > >> >> I tested this version of patch. Patch didn't apply cleanly for some >> >> reason even tough when I mnauly typed it diff looks same. >> > >> > Please try the v2 version of the patch. Some "back of the envelope" >> > math suggests that the v2 version of the patch will give numbers more >> > to your liking. >> > >> > John >> > -- >> > John W. Linville Someday the world will need a hero, and you >> > linville@tuxdriver.com might be all we have. Be ready. >> > >> >> But version 2 doesn't change the fact that driver is going to report >> same signal strength even tough I know that only one wifi should have >> 100 % strength and others less than 50 %. There is only one router in >> same room with me and all others routers are a lot more father away. >> So driver is either reading wrong bits from hardware or my hardware is >> broken. > > Did you try the patch? I suspect not. > > I can't really decipher what problem you are reporting here with "100 % > strength and others less than 50 %". In any case, if you have RTL8185 > hardware then this patch changes the signal calculation to match what > the Realtek-provided vendor driver does (which doesn't seem to match > their datasheet, FWIW). If you have a better source of information > then I am happy to receive it. > I mean that excepted values for signal strength is that single AP has close 100% signal strength and others should show less than 50%. When actual result with your 2nd patch is that all APs are reported having 100% signal strength. Card is old 8180b. I don't have any documentations but I'm just guessing from values that are coming from hw. What I see coming from hw it looks signal strength is reported in flags & 0xfff or flags2 & 0xff. They are only part of those memory areas that change enough to be field for signal strength. > If you have RTL8180 (i.e. not RTL8185) hardware then neither version of > the patch is likely to help you much (beyond avoiding the warning you > originally reported). I hope to improve that as well in the future. > I understood that patch is only fixing the WARN_ON problem. I don't really need the signal strength (I have known the strength reporting bug for quite sometime) so I'm happy with this patch. But I tried to find if signal strength reporting could be fixed easily same time for 8180 too. > John > -- > John W. Linville Someday the world will need a hero, and you > linville@tuxdriver.com might be all we have. Be ready. > ^ permalink raw reply [flat|nested] 12+ messages in thread
* [RFT] rtl8180: improve signal reporting for actual rtl8180 hardware 2010-07-21 17:19 ` John W. Linville 2010-07-21 17:44 ` Pauli Nieminen @ 2010-07-21 20:30 ` John W. Linville 2010-07-22 6:07 ` Pauli Nieminen 1 sibling, 1 reply; 12+ messages in thread From: John W. Linville @ 2010-07-21 20:30 UTC (permalink / raw) To: linux-wireless; +Cc: Pauli Nieminen, John W. Linville Adapted from Realtek-provided driver... Signed-off-by: John W. Linville <linville@tuxdriver.com> --- drivers/net/wireless/rtl818x/rtl8180_dev.c | 18 +++++++++------ drivers/net/wireless/rtl818x/rtl8180_grf5101.c | 12 +++++++++- drivers/net/wireless/rtl818x/rtl8180_max2820.c | 19 +++++++++++++++- drivers/net/wireless/rtl818x/rtl8180_sa2400.c | 28 +++++++++++++++++++++++- drivers/net/wireless/rtl818x/rtl818x.h | 1 + 5 files changed, 68 insertions(+), 10 deletions(-) diff --git a/drivers/net/wireless/rtl818x/rtl8180_dev.c b/drivers/net/wireless/rtl818x/rtl8180_dev.c index 31808f9..d8b186a 100644 --- a/drivers/net/wireless/rtl818x/rtl8180_dev.c +++ b/drivers/net/wireless/rtl818x/rtl8180_dev.c @@ -103,7 +103,7 @@ static void rtl8180_handle_rx(struct ieee80211_hw *dev) { struct rtl8180_priv *priv = dev->priv; unsigned int count = 32; - u8 signal; + u8 signal, agc, sq; while (count--) { struct rtl8180_rx_desc *entry = &priv->rx_ring[priv->rx_idx]; @@ -132,12 +132,16 @@ static void rtl8180_handle_rx(struct ieee80211_hw *dev) rx_status.antenna = (flags2 >> 15) & 1; rx_status.rate_idx = (flags >> 20) & 0xF; - /* TODO: improve signal/rssi reporting for !rtl8185 */ - signal = (flags2 >> 17) & 0x7F; - if (rx_status.rate_idx > 3) - signal = 90 - clamp_t(u8, signal, 25, 90); - else - signal = 95 - clamp_t(u8, signal, 30, 95); + agc = (flags2 >> 17) & 0x7F; + if (priv->r8185) { + if (rx_status.rate_idx > 3) + signal = 90 - clamp_t(u8, agc, 25, 90); + else + signal = 95 - clamp_t(u8, agc, 30, 95); + } else { + sq = flags2 & 0xff; + signal = priv->rf->calc_rssi(agc, sq); + } rx_status.signal = signal; rx_status.freq = dev->conf.channel->center_freq; rx_status.band = dev->conf.channel->band; diff --git a/drivers/net/wireless/rtl818x/rtl8180_grf5101.c b/drivers/net/wireless/rtl818x/rtl8180_grf5101.c index 947ee55..5cab9df 100644 --- a/drivers/net/wireless/rtl818x/rtl8180_grf5101.c +++ b/drivers/net/wireless/rtl818x/rtl8180_grf5101.c @@ -69,6 +69,15 @@ static void grf5101_write_phy_antenna(struct ieee80211_hw *dev, short chan) rtl8180_write_phy(dev, 0x10, ant); } +static u8 grf5101_rf_calc_rssi(u8 agc, u8 sq) +{ + if (agc > 60) + return 65; + + /* TODO(?): just return agc (or agc + 5) to avoid mult / div */ + return 65 * agc / 60; +} + static void grf5101_rf_set_channel(struct ieee80211_hw *dev, struct ieee80211_conf *conf) { @@ -176,5 +185,6 @@ const struct rtl818x_rf_ops grf5101_rf_ops = { .name = "GCT", .init = grf5101_rf_init, .stop = grf5101_rf_stop, - .set_chan = grf5101_rf_set_channel + .set_chan = grf5101_rf_set_channel, + .calc_rssi = grf5101_rf_calc_rssi, }; diff --git a/drivers/net/wireless/rtl818x/rtl8180_max2820.c b/drivers/net/wireless/rtl818x/rtl8180_max2820.c index 6c825fd..16c4655 100644 --- a/drivers/net/wireless/rtl818x/rtl8180_max2820.c +++ b/drivers/net/wireless/rtl818x/rtl8180_max2820.c @@ -74,6 +74,22 @@ static void max2820_write_phy_antenna(struct ieee80211_hw *dev, short chan) rtl8180_write_phy(dev, 0x10, ant); } +static u8 max2820_rf_calc_rssi(u8 agc, u8 sq) +{ + bool odd; + + odd = !!(agc & 1); + + agc >>= 1; + if (odd) + agc += 76; + else + agc += 66; + + /* TODO: change addends above to avoid mult / div below */ + return 65 * agc / 100; +} + static void max2820_rf_set_channel(struct ieee80211_hw *dev, struct ieee80211_conf *conf) { @@ -148,5 +164,6 @@ const struct rtl818x_rf_ops max2820_rf_ops = { .name = "Maxim", .init = max2820_rf_init, .stop = max2820_rf_stop, - .set_chan = max2820_rf_set_channel + .set_chan = max2820_rf_set_channel, + .calc_rssi = max2820_rf_calc_rssi, }; diff --git a/drivers/net/wireless/rtl818x/rtl8180_sa2400.c b/drivers/net/wireless/rtl818x/rtl8180_sa2400.c index cea4e0c..d064fcc 100644 --- a/drivers/net/wireless/rtl818x/rtl8180_sa2400.c +++ b/drivers/net/wireless/rtl818x/rtl8180_sa2400.c @@ -76,6 +76,31 @@ static void sa2400_write_phy_antenna(struct ieee80211_hw *dev, short chan) } +static u8 sa2400_rf_rssi_map[] = { + 0x64, 0x64, 0x63, 0x62, 0x61, 0x60, 0x5f, 0x5e, + 0x5d, 0x5c, 0x5b, 0x5a, 0x57, 0x54, 0x52, 0x50, + 0x4e, 0x4c, 0x4a, 0x48, 0x46, 0x44, 0x41, 0x3f, + 0x3c, 0x3a, 0x37, 0x36, 0x36, 0x1c, 0x1c, 0x1b, + 0x1b, 0x1a, 0x1a, 0x19, 0x19, 0x18, 0x18, 0x17, + 0x17, 0x16, 0x16, 0x15, 0x15, 0x14, 0x14, 0x13, + 0x13, 0x12, 0x12, 0x11, 0x11, 0x10, 0x10, 0x0f, + 0x0f, 0x0e, 0x0e, 0x0d, 0x0d, 0x0c, 0x0c, 0x0b, + 0x0b, 0x0a, 0x0a, 0x09, 0x09, 0x08, 0x08, 0x07, + 0x07, 0x06, 0x06, 0x05, 0x04, 0x03, 0x02, +}; + +static u8 sa2400_rf_calc_rssi(u8 agc, u8 sq) +{ + if (sq == 0x80) + return 1; + + if (sq > 78) + return 32; + + /* TODO: recalc sa2400_rf_rssi_map to avoid mult / div */ + return 65 * sa2400_rf_rssi_map[sq] / 100; +} + static void sa2400_rf_set_channel(struct ieee80211_hw *dev, struct ieee80211_conf *conf) { @@ -198,5 +223,6 @@ const struct rtl818x_rf_ops sa2400_rf_ops = { .name = "Philips", .init = sa2400_rf_init, .stop = sa2400_rf_stop, - .set_chan = sa2400_rf_set_channel + .set_chan = sa2400_rf_set_channel, + .calc_rssi = sa2400_rf_calc_rssi, }; diff --git a/drivers/net/wireless/rtl818x/rtl818x.h b/drivers/net/wireless/rtl818x/rtl818x.h index 8522490..22d9384 100644 --- a/drivers/net/wireless/rtl818x/rtl818x.h +++ b/drivers/net/wireless/rtl818x/rtl818x.h @@ -193,6 +193,7 @@ struct rtl818x_rf_ops { void (*stop)(struct ieee80211_hw *); void (*set_chan)(struct ieee80211_hw *, struct ieee80211_conf *); void (*conf_erp)(struct ieee80211_hw *, struct ieee80211_bss_conf *); + u8 (*calc_rssi)(u8 agc, u8 sq); }; /** -- 1.7.1.1 ^ permalink raw reply related [flat|nested] 12+ messages in thread
* Re: [RFT] rtl8180: improve signal reporting for actual rtl8180 hardware 2010-07-21 20:30 ` [RFT] rtl8180: improve signal reporting for actual rtl8180 hardware John W. Linville @ 2010-07-22 6:07 ` Pauli Nieminen 0 siblings, 0 replies; 12+ messages in thread From: Pauli Nieminen @ 2010-07-22 6:07 UTC (permalink / raw) To: John W. Linville; +Cc: linux-wireless On Wed, Jul 21, 2010 at 11:30 PM, John W. Linville <linville@tuxdriver.com> wrote: > Adapted from Realtek-provided driver... > > Signed-off-by: John W. Linville <linville@tuxdriver.com> This works for RTL8180L 802.11b MAC [10ec:8180] (rev 20) Tested-by: Pauli Nieminen <suokkos@gmail.com> > --- > drivers/net/wireless/rtl818x/rtl8180_dev.c | 18 +++++++++------ > drivers/net/wireless/rtl818x/rtl8180_grf5101.c | 12 +++++++++- > drivers/net/wireless/rtl818x/rtl8180_max2820.c | 19 +++++++++++++++- > drivers/net/wireless/rtl818x/rtl8180_sa2400.c | 28 +++++++++++++++++++++++- > drivers/net/wireless/rtl818x/rtl818x.h | 1 + > 5 files changed, 68 insertions(+), 10 deletions(-) > > diff --git a/drivers/net/wireless/rtl818x/rtl8180_dev.c b/drivers/net/wireless/rtl818x/rtl8180_dev.c > index 31808f9..d8b186a 100644 > --- a/drivers/net/wireless/rtl818x/rtl8180_dev.c > +++ b/drivers/net/wireless/rtl818x/rtl8180_dev.c > @@ -103,7 +103,7 @@ static void rtl8180_handle_rx(struct ieee80211_hw *dev) > { > struct rtl8180_priv *priv = dev->priv; > unsigned int count = 32; > - u8 signal; > + u8 signal, agc, sq; > > while (count--) { > struct rtl8180_rx_desc *entry = &priv->rx_ring[priv->rx_idx]; > @@ -132,12 +132,16 @@ static void rtl8180_handle_rx(struct ieee80211_hw *dev) > > rx_status.antenna = (flags2 >> 15) & 1; > rx_status.rate_idx = (flags >> 20) & 0xF; > - /* TODO: improve signal/rssi reporting for !rtl8185 */ > - signal = (flags2 >> 17) & 0x7F; > - if (rx_status.rate_idx > 3) > - signal = 90 - clamp_t(u8, signal, 25, 90); > - else > - signal = 95 - clamp_t(u8, signal, 30, 95); > + agc = (flags2 >> 17) & 0x7F; > + if (priv->r8185) { > + if (rx_status.rate_idx > 3) > + signal = 90 - clamp_t(u8, agc, 25, 90); > + else > + signal = 95 - clamp_t(u8, agc, 30, 95); > + } else { > + sq = flags2 & 0xff; > + signal = priv->rf->calc_rssi(agc, sq); > + } > rx_status.signal = signal; > rx_status.freq = dev->conf.channel->center_freq; > rx_status.band = dev->conf.channel->band; > diff --git a/drivers/net/wireless/rtl818x/rtl8180_grf5101.c b/drivers/net/wireless/rtl818x/rtl8180_grf5101.c > index 947ee55..5cab9df 100644 > --- a/drivers/net/wireless/rtl818x/rtl8180_grf5101.c > +++ b/drivers/net/wireless/rtl818x/rtl8180_grf5101.c > @@ -69,6 +69,15 @@ static void grf5101_write_phy_antenna(struct ieee80211_hw *dev, short chan) > rtl8180_write_phy(dev, 0x10, ant); > } > > +static u8 grf5101_rf_calc_rssi(u8 agc, u8 sq) > +{ > + if (agc > 60) > + return 65; > + > + /* TODO(?): just return agc (or agc + 5) to avoid mult / div */ > + return 65 * agc / 60; > +} > + > static void grf5101_rf_set_channel(struct ieee80211_hw *dev, > struct ieee80211_conf *conf) > { > @@ -176,5 +185,6 @@ const struct rtl818x_rf_ops grf5101_rf_ops = { > .name = "GCT", > .init = grf5101_rf_init, > .stop = grf5101_rf_stop, > - .set_chan = grf5101_rf_set_channel > + .set_chan = grf5101_rf_set_channel, > + .calc_rssi = grf5101_rf_calc_rssi, > }; > diff --git a/drivers/net/wireless/rtl818x/rtl8180_max2820.c b/drivers/net/wireless/rtl818x/rtl8180_max2820.c > index 6c825fd..16c4655 100644 > --- a/drivers/net/wireless/rtl818x/rtl8180_max2820.c > +++ b/drivers/net/wireless/rtl818x/rtl8180_max2820.c > @@ -74,6 +74,22 @@ static void max2820_write_phy_antenna(struct ieee80211_hw *dev, short chan) > rtl8180_write_phy(dev, 0x10, ant); > } > > +static u8 max2820_rf_calc_rssi(u8 agc, u8 sq) > +{ > + bool odd; > + > + odd = !!(agc & 1); > + > + agc >>= 1; > + if (odd) > + agc += 76; > + else > + agc += 66; > + > + /* TODO: change addends above to avoid mult / div below */ > + return 65 * agc / 100; > +} > + > static void max2820_rf_set_channel(struct ieee80211_hw *dev, > struct ieee80211_conf *conf) > { > @@ -148,5 +164,6 @@ const struct rtl818x_rf_ops max2820_rf_ops = { > .name = "Maxim", > .init = max2820_rf_init, > .stop = max2820_rf_stop, > - .set_chan = max2820_rf_set_channel > + .set_chan = max2820_rf_set_channel, > + .calc_rssi = max2820_rf_calc_rssi, > }; > diff --git a/drivers/net/wireless/rtl818x/rtl8180_sa2400.c b/drivers/net/wireless/rtl818x/rtl8180_sa2400.c > index cea4e0c..d064fcc 100644 > --- a/drivers/net/wireless/rtl818x/rtl8180_sa2400.c > +++ b/drivers/net/wireless/rtl818x/rtl8180_sa2400.c > @@ -76,6 +76,31 @@ static void sa2400_write_phy_antenna(struct ieee80211_hw *dev, short chan) > > } > > +static u8 sa2400_rf_rssi_map[] = { > + 0x64, 0x64, 0x63, 0x62, 0x61, 0x60, 0x5f, 0x5e, > + 0x5d, 0x5c, 0x5b, 0x5a, 0x57, 0x54, 0x52, 0x50, > + 0x4e, 0x4c, 0x4a, 0x48, 0x46, 0x44, 0x41, 0x3f, > + 0x3c, 0x3a, 0x37, 0x36, 0x36, 0x1c, 0x1c, 0x1b, > + 0x1b, 0x1a, 0x1a, 0x19, 0x19, 0x18, 0x18, 0x17, > + 0x17, 0x16, 0x16, 0x15, 0x15, 0x14, 0x14, 0x13, > + 0x13, 0x12, 0x12, 0x11, 0x11, 0x10, 0x10, 0x0f, > + 0x0f, 0x0e, 0x0e, 0x0d, 0x0d, 0x0c, 0x0c, 0x0b, > + 0x0b, 0x0a, 0x0a, 0x09, 0x09, 0x08, 0x08, 0x07, > + 0x07, 0x06, 0x06, 0x05, 0x04, 0x03, 0x02, > +}; > + > +static u8 sa2400_rf_calc_rssi(u8 agc, u8 sq) > +{ > + if (sq == 0x80) > + return 1; > + > + if (sq > 78) > + return 32; > + > + /* TODO: recalc sa2400_rf_rssi_map to avoid mult / div */ > + return 65 * sa2400_rf_rssi_map[sq] / 100; > +} > + > static void sa2400_rf_set_channel(struct ieee80211_hw *dev, > struct ieee80211_conf *conf) > { > @@ -198,5 +223,6 @@ const struct rtl818x_rf_ops sa2400_rf_ops = { > .name = "Philips", > .init = sa2400_rf_init, > .stop = sa2400_rf_stop, > - .set_chan = sa2400_rf_set_channel > + .set_chan = sa2400_rf_set_channel, > + .calc_rssi = sa2400_rf_calc_rssi, > }; > diff --git a/drivers/net/wireless/rtl818x/rtl818x.h b/drivers/net/wireless/rtl818x/rtl818x.h > index 8522490..22d9384 100644 > --- a/drivers/net/wireless/rtl818x/rtl818x.h > +++ b/drivers/net/wireless/rtl818x/rtl818x.h > @@ -193,6 +193,7 @@ struct rtl818x_rf_ops { > void (*stop)(struct ieee80211_hw *); > void (*set_chan)(struct ieee80211_hw *, struct ieee80211_conf *); > void (*conf_erp)(struct ieee80211_hw *, struct ieee80211_bss_conf *); > + u8 (*calc_rssi)(u8 agc, u8 sq); > }; > > /** > -- > 1.7.1.1 > > ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH] rtl8180: improve signal reporting for rtl8185 hardware 2010-07-21 17:07 ` Pauli Nieminen 2010-07-21 17:19 ` John W. Linville @ 2010-07-21 17:22 ` Pauli Nieminen 1 sibling, 0 replies; 12+ messages in thread From: Pauli Nieminen @ 2010-07-21 17:22 UTC (permalink / raw) To: John W. Linville; +Cc: linux-wireless On Wed, Jul 21, 2010 at 8:07 PM, Pauli Nieminen <suokkos@gmail.com> wrote: > On Wed, Jul 21, 2010 at 4:33 PM, John W. Linville > <linville@tuxdriver.com> wrote: >> On Wed, Jul 21, 2010 at 08:08:41AM +0300, Pauli Nieminen wrote: >>> On Mon, Jul 19, 2010 at 11:47 PM, John W. Linville >>> <linville@tuxdriver.com> wrote: >>> > The existing code seemed to be somewhat based on the datasheet, but >>> > varied substantially from the vendor-provided driver. This mirrors the >>> > handling of the rtl8185 case from that driver, but still neglects the >>> > specifics for the rtl8180 hardware. Those details are a bit muddled... >>> > >>> > Signed-off-by: John W. Linville <linville@tuxdriver.com> >>> > --- >>> > drivers/net/wireless/rtl818x/rtl8180_dev.c | 11 ++++++++--- >>> > 1 files changed, 8 insertions(+), 3 deletions(-) >> >>> I tested this version of patch. Patch didn't apply cleanly for some >>> reason even tough when I mnauly typed it diff looks same. >> >> Please try the v2 version of the patch. Some "back of the envelope" >> math suggests that the v2 version of the patch will give numbers more >> to your liking. >> >> John >> -- >> John W. Linville Someday the world will need a hero, and you >> linville@tuxdriver.com might be all we have. Be ready. >> > > But version 2 doesn't change the fact that driver is going to report > same signal strength even tough I know that only one wifi should have > 100 % strength and others less than 50 %. There is only one router in > same room with me and all others routers are a lot more father away. > So driver is either reading wrong bits from hardware or my hardware is > broken. > yes. This time all networks are showing signal strength of 100%. But I added some debug output to driver: printk(KERN_DEBUG " [rtl debug] %x %x, signal %x\n", flags, flags2, signal); after the raw signal value is extracted from flags2. So what is in flags2 & 0x7f ? [ 933.501140] [rtl debug] 30050115 27e26, signal 1 [ 933.506067] [rtl debug] 3005004b 27f06, signal 1 [ 933.518955] [rtl debug] 30050067 27f40, signal 1 [ 933.553504] [rtl debug] 30050093 27f14, signal 1 [ 933.574740] [rtl debug] 3005014f 27f35, signal 1 [ 933.603517] [rtl debug] 30050115 27e36, signal 1 [ 933.608457] [rtl debug] 3005004b 27f10, signal 1 [ 933.621354] [rtl debug] 30050067 27f22, signal 1 [ 933.655899] [rtl debug] 30050093 27f0c, signal 1 [ 933.677129] [rtl debug] 3005014f 27f5d, signal 1 [ 933.705938] [rtl debug] 30050115 27e35, signal 1 [ 933.710849] [rtl debug] 3005004b 27f14, signal 1 [ 933.723766] [rtl debug] 30050067 27f1f, signal 1 [ 933.758294] [rtl debug] 30050093 27f0d, signal 1 [ 933.779520] [rtl debug] 3005014f 27f23, signal 1 [ 933.791609] [rtl debug] 3002008d 27f0b, signal 1 [ 933.793015] [rtl debug] 30220067 27f15, signal 1 [ 933.799226] [rtl debug] 300201a7 27f1d, signal 1 [ 933.808314] [rtl debug] 30050115 27e32, signal 1 [ 933.813240] [rtl debug] 3005004b 27f2a, signal 1 [ 933.887783] [rtl debug] 30020170 27e1b, signal 1 [ 933.983846] [rtl debug] 30020170 27e08, signal 1 [ 933.986958] [rtl debug] 3002008d 27e6a, signal 1 [ 934.013075] [rtl debug] 30050115 27e06, signal 1 [ 934.040769] [rtl debug] 300500aa 27f2d, signal 1 [ 934.050505] [rtl debug] 30050070 27e74, signal 1 [ 934.078256] [rtl debug] 300200a4 27e35, signal 1 [ 934.115455] [rtl debug] 30050115 27e2d, signal 1 [ 934.143156] [rtl debug] 300500aa 27f2d, signal 1 [ 934.153119] [rtl debug] 3005011e 27f11, signal 1 [ 934.178435] [rtl debug] 3002006a 27f3f, signal 1 [ 934.182284] [rtl debug] 700200a4 27f38, signal 1 [ 934.245545] [rtl debug] 300500aa 27f07, signal 1 [ 934.255291] [rtl debug] 30050070 27f19, signal 1 [ 934.263122] [rtl debug] 300500b1 27f56, signal 1 [ 934.269774] [rtl debug] 3002006a 27f37, signal 1 [ 934.272079] [rtl debug] 300200a4 27f09, signal 1 [ 934.278878] [rtl debug] 300500b2 27f14, signal 1 [ 934.295966] [rtl debug] 3005006b 27f22, signal 1 [ 934.347946] [rtl debug] 300500aa 27f38, signal 1 [ 934.357664] [rtl debug] 30050070 27f25, signal 1 [ 934.370020] [rtl debug] 300200a4 27f5d, signal 1 [ 934.371459] [rtl debug] 30020069 27f44, signal 1 [ 934.391963] [rtl debug] 30050070 27e23, signal 1 [ 934.398341] [rtl debug] 3005006b 27f53, signal 1 [ 934.450319] [rtl debug] 300500aa 27f47, signal 1 [ 934.460050] [rtl debug] 30050070 27e3d, signal 1 [ 934.461697] [rtl debug] 3002006a 27f5e, signal 1 [ 934.463394] [rtl debug] 3002006a 27f5c, signal 1 [ 934.464816] [rtl debug] 30020069 27f69, signal 1 [ 934.482014] [rtl debug] 30020067 27e51, signal 1 [ 934.494346] [rtl debug] 30050070 27f46, signal 1 [ 934.551575] [rtl debug] 3005007d 27f27, signal 1 [ 934.560559] [rtl debug] 30020069 27f10, signal 1 [ 934.562391] [rtl debug] 3002006a 27f27, signal 1 [ 934.582431] [rtl debug] 3005010d 27f22, signal 1 [ 934.596735] [rtl debug] 30050070 27e06, signal 1 [ 934.603122] [rtl debug] 3005006b 27f4a, signal 1 [ 934.642886] [rtl debug] 3005006d 27e08, signal 1 [ 934.653779] [rtl debug] 3002006a 27e0b, signal 1 [ 934.657375] [rtl debug] 30020067 27f71, signal 1 [ 934.667762] [rtl debug] 3002006b 27f45, signal 1 [ 934.672737] [rtl debug] 30020069 27f34, signal 1 [ 934.676975] [rtl debug] 70050071 27f38, signal 1 [ 934.699125] [rtl debug] 30050070 27f47, signal 1 [ 934.752097] [rtl debug] 300200f9 27e0a, signal 1 [ 934.753643] [rtl debug] 3002006a 27f79, signal 1 [ 934.756595] [rtl debug] 3005007d 27e0c, signal 1 [ 934.758060] [rtl debug] 30020069 27f4f, signal 1 [ 934.767387] [rtl debug] 3002006b 27f12, signal 1 [ 934.775403] [rtl debug] 3005006f 27f40, signal 1 [ 934.801523] [rtl debug] 30050070 27f4e, signal 1 [ 934.847670] [rtl debug] 3005006d 27f6b, signal 1 [ 934.889605] [rtl debug] 3005010d 27f47, signal 1 [ 934.903901] [rtl debug] 30050070 27f33, signal 1 [ 934.961145] [rtl debug] 3005007d 27f26, signal 1 [ 934.984144] [rtl debug] 30050071 27e5b, signal 1 [ 934.991995] [rtl debug] 3005010d 27f59, signal 1 [ 935.063539] [rtl debug] 3005007d 27f2e, signal 1 [ 935.086536] [rtl debug] 30050071 27e59, signal 1 [ 935.094391] [rtl debug] 3005010d 27f28, signal 1 [ 935.294095] [rtl debug] 30050093 27f0d, signal 1 [ 935.315383] [rtl debug] 3005014f 27f2d, signal 1 [ 935.344139] [rtl debug] 30050115 27e2f, signal 1 [ 935.349087] [rtl debug] 3005004b 27f16, signal 1 [ 935.362005] [rtl debug] 30050067 27f23, signal 1 [ 935.396495] [rtl debug] 30050093 27f0a, signal 1 [ 935.417782] [rtl debug] 3005014f 27f42, signal 1 [ 935.446524] [rtl debug] 30050115 27e31, signal 1 [ 935.451484] [rtl debug] 3005004b 27f30, signal 1 [ 935.464403] [rtl debug] 30050067 27f3a, signal 1 [ 935.498892] [rtl debug] 30050093 27f08, signal 1 [ 935.520185] [rtl debug] 3005014f 27f20, signal 1 [ 935.548933] [rtl debug] 30050115 27e44, signal 1 [ 935.553878] [rtl debug] 3005004b 27e2c, signal 1 [ 935.566800] [rtl debug] 70050067 27f3f, signal 1 [ 935.601287] [rtl debug] 30050093 27f0e, signal 1 [ 935.622570] [rtl debug] 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7e0b, signal 0 [ 948.400038] [rtl debug] 30050093 7f5f, signal 0 [ 948.450266] [rtl debug] 30050115 7e07, signal 0 [ 948.552642] [rtl debug] 30050115 7e03, signal 0 [ 948.655024] [rtl debug] 30050115 7e05, signal 0 [ 948.707215] [rtl debug] 30050093 7f73, signal 0 [ 948.757897] [rtl debug] 30050115 7e0c, signal 0 [ 948.859822] [rtl debug] 30050115 7e09, signal 0 [ 948.864833] [rtl debug] 3005004b 7e45, signal 0 [ 948.912003] [rtl debug] 30050093 7f48, signal 0 [ 948.962199] [rtl debug] 30050115 7e05, signal 0 [ 948.967225] [rtl debug] 3005004b 7e59, signal 0 [ 949.064601] [rtl debug] 30050115 7e02, signal 0 [ 949.082668] [rtl debug] 30050067 7e8b, signal 0 [ 949.167851] [rtl debug] 30050115 7e08, signal 0 [ 949.269542] [rtl debug] 30050115 7e0b, signal 0 [ 949.371779] [rtl debug] 30050115 7e0d, signal 0 [ 949.474161] [rtl debug] 30050115 7e0c, signal 0 [ 949.576567] [rtl debug] 30050115 7e0d, signal 0 [ 949.678945] [rtl debug] 30050115 7e06, signal 0 [ 949.781350] [rtl debug] 30050115 7e09, signal 0 [ 949.799415] [rtl debug] 70050067 7f66, signal 0 [ 949.833512] [rtl debug] 30050093 7e4e, signal 0 [ 949.883738] [rtl debug] 30050115 7e08, signal 0 [ 949.888758] [rtl debug] 3005004b 7f29, signal 0 [ 949.986119] [rtl debug] 30050115 7e07, signal 0 [ 949.988342] [rtl debug] 300400fa 27e02, signal 1 [ 950.088524] [rtl debug] 30050115 7e07, signal 0 [ 950.190904] [rtl debug] 30050115 7e08, signal 0 [ 950.208993] [rtl debug] 30050067 7f4d, signal 0 [ 950.293319] [rtl debug] 30050115 7e0d, signal 0 [ 950.345469] [rtl debug] 30050093 7f23, signal 0 [ 950.395708] [rtl debug] 30050115 7e0c, signal 0 [ 950.447859] [rtl debug] 30050093 7f3a, signal 0 [ 950.498078] [rtl debug] 30050115 7e04, signal 0 [ 950.600496] [rtl debug] 30050115 7e05, signal 0 [ 950.652642] [rtl debug] 30050093 7e41, signal 0 [ 950.703313] [rtl debug] 30050115 7e04, signal 0 [ 950.720962] [rtl debug] 30050067 7e65, signal 0 [ 950.755031] [rtl debug] 30050093 7e27, signal 0 [ 950.805280] [rtl debug] 30050115 7e02, signal 0 [ 950.823365] [rtl debug] 30050067 7e28, signal 0 [ 950.907658] [rtl debug] 30050115 7e0b, signal 0 [ 950.959804] [rtl debug] 30050093 7e21, signal 0 [ 951.010058] [rtl debug] 30050115 7e08, signal 0 [ 951.112442] [rtl debug] 30050115 7e06, signal 0 [ 951.117479] [rtl debug] 3005004b 7e5d, signal 0 [ 951.130544] [rtl debug] 30050067 7e3f, signal 0 [ 951.214852] [rtl debug] 30050115 7e0a, signal 0 [ 951.232947] [rtl debug] 30050067 7f47, signal 0 [ 951.317225] [rtl debug] 30050115 7e0b, signal 0 [ 951.322263] [rtl debug] 3005004b 7f3d, signal 0 [ 951.419643] [rtl debug] 30050115 7e09, signal 0 [ 951.522008] [rtl debug] 70050115 7e06, signal 0 [ 951.574160] [rtl debug] 30050093 7f31, signal 0 [ 951.624412] [rtl debug] 30050115 7e0a, signal 0 [ 951.629443] [rtl debug] 3005004b 7e31, signal 0 [ 951.642503] [rtl debug] 30050067 7e32, signal 0 [ 951.676544] [rtl debug] 30050093 7e24, signal 0 [ 951.731219] [rtl debug] 30050115 7e0c, signal 0 [ 951.744907] [rtl debug] 30050067 7e57, signal 0 ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: RTL8180L is hitting WARN_ON in net/wireless/scan.c:575 2010-07-17 7:30 RTL8180L is hitting WARN_ON in net/wireless/scan.c:575 Pauli Nieminen 2010-07-19 20:47 ` [PATCH] rtl8180: improve signal reporting for rtl8185 hardware John W. Linville @ 2010-07-19 20:48 ` John W. Linville 1 sibling, 0 replies; 12+ messages in thread From: John W. Linville @ 2010-07-19 20:48 UTC (permalink / raw) To: Pauli Nieminen; +Cc: linux-wireless On Sat, Jul 17, 2010 at 10:30:49AM +0300, Pauli Nieminen wrote: > Hi, > > I'm testing 2.6.35-rc4+, I have problem that warning is spamming dmesg > when I have my wifi on. Actual problem caused y that problem is that I > can't scan/connect to any network with 2.6.35. > > When I looked the code in warning it might be related to problem that > my wifi reports all signal strength to be 175 or 178 (if I remember > correctly). I'm now using 2.6.35 so I can't check the reported values > from scan results. I just sent "rtl8180: improve signal reporting for rtl8185 hardware" as a reply to this email. Can you try that patch? Thanks! John -- John W. Linville Someday the world will need a hero, and you linville@tuxdriver.com might be all we have. Be ready. ^ permalink raw reply [flat|nested] 12+ messages in thread
end of thread, other threads:[~2010-07-22 6:07 UTC | newest] Thread overview: 12+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2010-07-17 7:30 RTL8180L is hitting WARN_ON in net/wireless/scan.c:575 Pauli Nieminen 2010-07-19 20:47 ` [PATCH] rtl8180: improve signal reporting for rtl8185 hardware John W. Linville 2010-07-20 20:56 ` [PATCH v2] " John W. Linville 2010-07-21 5:08 ` [PATCH] " Pauli Nieminen 2010-07-21 13:33 ` John W. Linville 2010-07-21 17:07 ` Pauli Nieminen 2010-07-21 17:19 ` John W. Linville 2010-07-21 17:44 ` Pauli Nieminen 2010-07-21 20:30 ` [RFT] rtl8180: improve signal reporting for actual rtl8180 hardware John W. Linville 2010-07-22 6:07 ` Pauli Nieminen 2010-07-21 17:22 ` [PATCH] rtl8180: improve signal reporting for rtl8185 hardware Pauli Nieminen 2010-07-19 20:48 ` RTL8180L is hitting WARN_ON in net/wireless/scan.c:575 John W. Linville
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