+++ /dev/null
---- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
-+++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
-@@ -1238,6 +1238,8 @@ void rt2800_watchdog(struct rt2x00_dev *
- if (test_bit(DEVICE_STATE_SCANNING, &rt2x00dev->flags))
- return;
-
-+ rt2800_update_survey(rt2x00dev);
-+
- queue_for_each(rt2x00dev, queue) {
- switch (queue->qid) {
- case QID_AC_VO:
-@@ -1274,6 +1276,18 @@ void rt2800_watchdog(struct rt2x00_dev *
- }
- EXPORT_SYMBOL_GPL(rt2800_watchdog);
-
-+void rt2800_update_survey(struct rt2x00_dev *rt2x00dev)
-+{
-+ struct ieee80211_channel *chan = rt2x00dev->hw->conf.chandef.chan;
-+ struct rt2x00_chan_survey *chan_survey =
-+ &rt2x00dev->chan_survey[chan->hw_value];
-+
-+ chan_survey->time_idle += rt2800_register_read(rt2x00dev, CH_IDLE_STA);
-+ chan_survey->time_busy += rt2800_register_read(rt2x00dev, CH_BUSY_STA);
-+ chan_survey->time_ext_busy += rt2800_register_read(rt2x00dev, CH_BUSY_STA_SEC);
-+}
-+EXPORT_SYMBOL_GPL(rt2800_update_survey);
-+
- static unsigned int rt2800_hw_beacon_base(struct rt2x00_dev *rt2x00dev,
- unsigned int index)
- {
-@@ -12199,26 +12213,30 @@ int rt2800_get_survey(struct ieee80211_h
- {
- struct rt2x00_dev *rt2x00dev = hw->priv;
- struct ieee80211_conf *conf = &hw->conf;
-- u32 idle, busy, busy_ext;
-+ struct rt2x00_chan_survey *chan_survey =
-+ &rt2x00dev->chan_survey[idx];
-+ enum nl80211_band band = NL80211_BAND_2GHZ;
-
-- if (idx != 0)
-+ if (idx >= rt2x00dev->bands[band].n_channels) {
-+ idx -= rt2x00dev->bands[band].n_channels;
-+ band = NL80211_BAND_5GHZ;
-+ }
-+
-+ if (idx >= rt2x00dev->bands[band].n_channels)
- return -ENOENT;
-
-- survey->channel = conf->chandef.chan;
-+ if (idx == 0)
-+ rt2800_update_survey(rt2x00dev);
-
-- idle = rt2800_register_read(rt2x00dev, CH_IDLE_STA);
-- busy = rt2800_register_read(rt2x00dev, CH_BUSY_STA);
-- busy_ext = rt2800_register_read(rt2x00dev, CH_BUSY_STA_SEC);
--
-- if (idle || busy) {
-- survey->filled = SURVEY_INFO_TIME |
-- SURVEY_INFO_TIME_BUSY |
-- SURVEY_INFO_TIME_EXT_BUSY;
--
-- survey->time = (idle + busy) / 1000;
-- survey->time_busy = busy / 1000;
-- survey->time_ext_busy = busy_ext / 1000;
-- }
-+ survey->channel = &rt2x00dev->bands[band].channels[idx];
-+
-+ survey->filled = SURVEY_INFO_TIME |
-+ SURVEY_INFO_TIME_BUSY |
-+ SURVEY_INFO_TIME_EXT_BUSY;
-+
-+ survey->time = div_u64(chan_survey->time_idle + chan_survey->time_busy, 1000);
-+ survey->time_busy = div_u64(chan_survey->time_busy, 1000);
-+ survey->time_ext_busy = div_u64(chan_survey->time_ext_busy, 1000);
-
- if (!(hw->conf.flags & IEEE80211_CONF_OFFCHANNEL))
- survey->filled |= SURVEY_INFO_IN_USE;
---- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.h
-+++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.h
-@@ -243,6 +243,7 @@ bool rt2800_txstatus_timeout(struct rt2x
- bool rt2800_txstatus_pending(struct rt2x00_dev *rt2x00dev);
-
- void rt2800_watchdog(struct rt2x00_dev *rt2x00dev);
-+void rt2800_update_survey(struct rt2x00_dev *rt2x00dev);
-
- void rt2800_write_beacon(struct queue_entry *entry, struct txentry_desc *txdesc);
- void rt2800_clear_beacon(struct queue_entry *entry);
---- a/drivers/net/wireless/ralink/rt2x00/rt2800pci.c
-+++ b/drivers/net/wireless/ralink/rt2x00/rt2800pci.c
-@@ -360,6 +360,7 @@ static const struct rt2x00lib_ops rt2800
- .gain_calibration = rt2800_gain_calibration,
- .vco_calibration = rt2800_vco_calibration,
- .watchdog = rt2800_watchdog,
-+ .update_survey = rt2800_update_survey,
- .start_queue = rt2800mmio_start_queue,
- .kick_queue = rt2800mmio_kick_queue,
- .stop_queue = rt2800mmio_stop_queue,
---- a/drivers/net/wireless/ralink/rt2x00/rt2800soc.c
-+++ b/drivers/net/wireless/ralink/rt2x00/rt2800soc.c
-@@ -214,6 +214,7 @@ static const struct rt2x00lib_ops rt2800
- .gain_calibration = rt2800_gain_calibration,
- .vco_calibration = rt2800_vco_calibration,
- .watchdog = rt2800_watchdog,
-+ .update_survey = rt2800_update_survey,
- .start_queue = rt2800mmio_start_queue,
- .kick_queue = rt2800mmio_kick_queue,
- .stop_queue = rt2800mmio_stop_queue,
---- a/drivers/net/wireless/ralink/rt2x00/rt2x00.h
-+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00.h
-@@ -183,6 +183,15 @@ struct rf_channel {
- };
-
- /*
-+ * Information structure for channel survey.
-+ */
-+struct rt2x00_chan_survey {
-+ u64 time_idle;
-+ u64 time_busy;
-+ u64 time_ext_busy;
-+};
-+
-+/*
- * Channel information structure
- */
- struct channel_info {
-@@ -567,6 +576,7 @@ struct rt2x00lib_ops {
- * Data queue handlers.
- */
- void (*watchdog) (struct rt2x00_dev *rt2x00dev);
-+ void (*update_survey) (struct rt2x00_dev *rt2x00dev);
- void (*start_queue) (struct data_queue *queue);
- void (*kick_queue) (struct data_queue *queue);
- void (*stop_queue) (struct data_queue *queue);
-@@ -755,6 +765,7 @@ struct rt2x00_dev {
- */
- struct ieee80211_hw *hw;
- struct ieee80211_supported_band bands[NUM_NL80211_BANDS];
-+ struct rt2x00_chan_survey *chan_survey;
- enum nl80211_band curr_band;
- int curr_freq;
-
---- a/drivers/net/wireless/ralink/rt2x00/rt2x00dev.c
-+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00dev.c
-@@ -1054,6 +1054,12 @@ static int rt2x00lib_probe_hw_modes(stru
- if (!rates)
- goto exit_free_channels;
-
-+ rt2x00dev->chan_survey =
-+ kcalloc(spec->num_channels, sizeof(struct rt2x00_chan_survey),
-+ GFP_KERNEL);
-+ if (!rt2x00dev->chan_survey)
-+ goto exit_free_rates;
-+
- /*
- * Initialize Rate list.
- */
-@@ -1105,6 +1111,8 @@ static int rt2x00lib_probe_hw_modes(stru
-
- return 0;
-
-+ exit_free_rates:
-+ kfree(rates);
- exit_free_channels:
- kfree(channels);
- rt2x00_err(rt2x00dev, "Allocation ieee80211 modes failed\n");
---- a/drivers/net/wireless/ralink/rt2x00/rt2x00mac.c
-+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00mac.c
-@@ -317,6 +317,15 @@ int rt2x00mac_config(struct ieee80211_hw
- return 0;
-
- /*
-+ * To provide correct survey data for survey-based ACS algorithm
-+ * we have to save survey data for current channel before switching.
-+ */
-+ if (rt2x00dev->ops->lib->update_survey &&
-+ (changed & IEEE80211_CONF_CHANGE_CHANNEL)) {
-+ rt2x00dev->ops->lib->update_survey(rt2x00dev);
-+ }
-+
-+ /*
- * Some configuration parameters (e.g. channel and antenna values) can
- * only be set when the radio is enabled, but do require the RX to
- * be off. During this period we should keep link tuning enabled,
projects / openwrt / openwrt.git / blobdiff