diff options
| author | Jérôme Pouiller <jerome.pouiller@silabs.com> | 2023-10-04 20:28:39 +0300 |
|---|---|---|
| committer | Kalle Valo <kvalo@kernel.org> | 2023-10-09 09:53:07 +0300 |
| commit | fc5cb24fd50e440cb5bb9ac024dc00765fb226db (patch) | |
| tree | 65769c902188db54ae0cc727f80e49fde532c991 /drivers/net/wireless/silabs | |
| parent | cf0cc05c8c231c075385cd906460543b03d76167 (diff) | |
| download | linux-fc5cb24fd50e440cb5bb9ac024dc00765fb226db.tar.xz | |
wifi: wfx: introduce hif_scan_uniq()
Like hof_scan(), hif_scan_uniq() invoke HIF_SCAN. However, it only
allows to probe one channel and disable probe requests. It works very
well to implement Remain-On-Channel.
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20231004172843.195332-5-jerome.pouiller@silabs.com
Diffstat (limited to 'drivers/net/wireless/silabs')
| -rw-r--r-- | drivers/net/wireless/silabs/wfx/hif_tx.c | 25 | ||||
| -rw-r--r-- | drivers/net/wireless/silabs/wfx/hif_tx.h | 1 |
2 files changed, 26 insertions, 0 deletions
diff --git a/drivers/net/wireless/silabs/wfx/hif_tx.c b/drivers/net/wireless/silabs/wfx/hif_tx.c index de5a31482df3..9f403d275cb1 100644 --- a/drivers/net/wireless/silabs/wfx/hif_tx.c +++ b/drivers/net/wireless/silabs/wfx/hif_tx.c @@ -238,6 +238,31 @@ int wfx_hif_write_mib(struct wfx_dev *wdev, int vif_id, u16 mib_id, void *val, s return ret; } +/* Hijack scan request to implement Remain-On-Channel */ +int wfx_hif_scan_uniq(struct wfx_vif *wvif, struct ieee80211_channel *chan, int duration) +{ + int ret; + struct wfx_hif_msg *hif; + size_t buf_len = sizeof(struct wfx_hif_req_start_scan_alt) + sizeof(u8); + struct wfx_hif_req_start_scan_alt *body = wfx_alloc_hif(buf_len, &hif); + + if (!hif) + return -ENOMEM; + body->num_of_ssids = HIF_API_MAX_NB_SSIDS; + body->maintain_current_bss = 1; + body->disallow_ps = 1; + body->tx_power_level = cpu_to_le32(chan->max_power); + body->num_of_channels = 1; + body->channel_list[0] = chan->hw_value; + body->max_transmit_rate = API_RATE_INDEX_B_1MBPS; + body->min_channel_time = cpu_to_le32(duration); + body->max_channel_time = cpu_to_le32(duration * 110 / 100); + wfx_fill_header(hif, wvif->id, HIF_REQ_ID_START_SCAN, buf_len); + ret = wfx_cmd_send(wvif->wdev, hif, NULL, 0, false); + kfree(hif); + return ret; +} + int wfx_hif_scan(struct wfx_vif *wvif, struct cfg80211_scan_request *req, int chan_start_idx, int chan_num) { diff --git a/drivers/net/wireless/silabs/wfx/hif_tx.h b/drivers/net/wireless/silabs/wfx/hif_tx.h index 71817a6571f0..aab54df6aafa 100644 --- a/drivers/net/wireless/silabs/wfx/hif_tx.h +++ b/drivers/net/wireless/silabs/wfx/hif_tx.h @@ -54,6 +54,7 @@ int wfx_hif_beacon_transmit(struct wfx_vif *wvif, bool enable); int wfx_hif_update_ie_beacon(struct wfx_vif *wvif, const u8 *ies, size_t ies_len); int wfx_hif_scan(struct wfx_vif *wvif, struct cfg80211_scan_request *req80211, int chan_start, int chan_num); +int wfx_hif_scan_uniq(struct wfx_vif *wvif, struct ieee80211_channel *chan, int duration); int wfx_hif_stop_scan(struct wfx_vif *wvif); int wfx_hif_configuration(struct wfx_dev *wdev, const u8 *conf, size_t len); int wfx_hif_shutdown(struct wfx_dev *wdev); |