diff options
| author | John W. Linville <linville@tuxdriver.com> | 2010-07-28 19:23:30 (GMT) |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2010-07-29 16:46:47 (GMT) |
| commit | 19434148d16dc231026f37af7c40e81ad9342e75 (patch) | |
| tree | ee649a89a690db417e2f3d19980a4a6ec4b9e6fb /drivers/net/wireless | |
| parent | a55427e8284541d43630f10a6c637b28802c21b0 (diff) | |
| download | linux-19434148d16dc231026f37af7c40e81ad9342e75.tar.xz | |
wl1251: add get_survey callback in order to get channel noise
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Acked-by: Kalle Valo <kvalo@adurom.com>
Diffstat (limited to 'drivers/net/wireless')
| -rw-r--r-- | drivers/net/wireless/wl12xx/wl1251.h | 3 | ||||
| -rw-r--r-- | drivers/net/wireless/wl12xx/wl1251_main.c | 17 | ||||
| -rw-r--r-- | drivers/net/wireless/wl12xx/wl1251_rx.c | 6 |
3 files changed, 26 insertions, 0 deletions
diff --git a/drivers/net/wireless/wl12xx/wl1251.h b/drivers/net/wireless/wl12xx/wl1251.h index 4f5f02a..6b942a2 100644 --- a/drivers/net/wireless/wl12xx/wl1251.h +++ b/drivers/net/wireless/wl12xx/wl1251.h @@ -381,6 +381,9 @@ struct wl1251 { u32 chip_id; char fw_ver[21]; + + /* Most recently reported noise in dBm */ + s8 noise; }; int wl1251_plt_start(struct wl1251 *wl); diff --git a/drivers/net/wireless/wl12xx/wl1251_main.c b/drivers/net/wireless/wl12xx/wl1251_main.c index 38f72f4..a6d8d1a 100644 --- a/drivers/net/wireless/wl12xx/wl1251_main.c +++ b/drivers/net/wireless/wl12xx/wl1251_main.c @@ -1172,6 +1172,22 @@ out: return ret; } +static int wl1251_op_get_survey(struct ieee80211_hw *hw, int idx, + struct survey_info *survey) +{ + struct wl1251 *wl = hw->priv; + struct ieee80211_conf *conf = &hw->conf; + + if (idx != 0) + return -ENOENT; + + survey->channel = conf->channel; + survey->filled = SURVEY_INFO_NOISE_DBM; + survey->noise = wl->noise; + + return 0; +} + /* can't be const, mac80211 writes to this */ static struct ieee80211_supported_band wl1251_band_2ghz = { .channels = wl1251_channels, @@ -1193,6 +1209,7 @@ static const struct ieee80211_ops wl1251_ops = { .bss_info_changed = wl1251_op_bss_info_changed, .set_rts_threshold = wl1251_op_set_rts_threshold, .conf_tx = wl1251_op_conf_tx, + .get_survey = wl1251_op_get_survey, }; static int wl1251_read_eeprom_byte(struct wl1251 *wl, off_t offset, u8 *data) diff --git a/drivers/net/wireless/wl12xx/wl1251_rx.c b/drivers/net/wireless/wl12xx/wl1251_rx.c index 8515158..1b6294b 100644 --- a/drivers/net/wireless/wl12xx/wl1251_rx.c +++ b/drivers/net/wireless/wl12xx/wl1251_rx.c @@ -74,6 +74,12 @@ static void wl1251_rx_status(struct wl1251 *wl, status->signal = desc->rssi; + /* + * FIXME: guessing that snr needs to be divided by two, otherwise + * the values don't make any sense + */ + wl->noise = desc->rssi - desc->snr / 2; + status->freq = ieee80211_channel_to_frequency(desc->channel); status->flag |= RX_FLAG_TSFT; |