ath10k: add spectral scan feature
Adds the spectral scan feature for ath10k. The spectral scan is triggered by
configuring a mode through a debugfs control file. Samples can be gathered via
another relay debugfs file.
Essentially, to try it out:
ip link set dev wlan0 up
echo background > /sys/kernel/debug/ieee80211/phy0/ath10k/spectral_scan_ctl
echo trigger > /sys/kernel/debug/ieee80211/phy0/ath10k/spectral_scan_ctl
iw dev wlan0 scan
echo disable > /sys/kernel/debug/ieee80211/phy0/ath10k/spectral_scan_ctl
cat /sys/kernel/debug/ieee80211/phy0/ath10k/spectral_scan0 > samples
This feature is still experimental. Based on the original RFC patch of
Sven Eckelmann.
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index b09661d..fffb15b 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -1780,7 +1780,54 @@
struct wmi_single_phyerr_rx_event *event,
u64 tsf)
{
- ath10k_dbg(ATH10K_DBG_WMI, "wmi event spectral scan\n");
+ int buf_len, tlv_len, res, i = 0;
+ struct phyerr_tlv *tlv;
+ u8 *tlv_buf;
+ struct phyerr_fft_report *fftr;
+ size_t fftr_len;
+
+ buf_len = __le32_to_cpu(event->hdr.buf_len);
+
+ while (i < buf_len) {
+ if (i + sizeof(*tlv) > buf_len) {
+ ath10k_warn("failed to parse phyerr tlv header at byte %d\n",
+ i);
+ return;
+ }
+
+ tlv = (struct phyerr_tlv *)&event->bufp[i];
+ tlv_len = __le16_to_cpu(tlv->len);
+ tlv_buf = &event->bufp[i + sizeof(*tlv)];
+
+ if (i + sizeof(*tlv) + tlv_len > buf_len) {
+ ath10k_warn("failed to parse phyerr tlv payload at byte %d\n",
+ i);
+ return;
+ }
+
+ switch (tlv->tag) {
+ case PHYERR_TLV_TAG_SEARCH_FFT_REPORT:
+ if (sizeof(*fftr) > tlv_len) {
+ ath10k_warn("failed to parse fft report at byte %d\n",
+ i);
+ return;
+ }
+
+ fftr_len = tlv_len - sizeof(*fftr);
+ fftr = (struct phyerr_fft_report *)tlv_buf;
+ res = ath10k_spectral_process_fft(ar, event,
+ fftr, fftr_len,
+ tsf);
+ if (res < 0) {
+ ath10k_warn("failed to process fft report: %d\n",
+ res);
+ return;
+ }
+ break;
+ }
+
+ i += sizeof(*tlv) + tlv_len;
+ }
}
static void ath10k_wmi_event_phyerr(struct ath10k *ar, struct sk_buff *skb)
@@ -3576,6 +3623,62 @@
ar->wmi.cmd->vdev_install_key_cmdid);
}
+int ath10k_wmi_vdev_spectral_conf(struct ath10k *ar,
+ const struct wmi_vdev_spectral_conf_arg *arg)
+{
+ struct wmi_vdev_spectral_conf_cmd *cmd;
+ struct sk_buff *skb;
+ u32 cmdid;
+
+ skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+ if (!skb)
+ return -ENOMEM;
+
+ cmd = (struct wmi_vdev_spectral_conf_cmd *)skb->data;
+ cmd->vdev_id = __cpu_to_le32(arg->vdev_id);
+ cmd->scan_count = __cpu_to_le32(arg->scan_count);
+ cmd->scan_period = __cpu_to_le32(arg->scan_period);
+ cmd->scan_priority = __cpu_to_le32(arg->scan_priority);
+ cmd->scan_fft_size = __cpu_to_le32(arg->scan_fft_size);
+ cmd->scan_gc_ena = __cpu_to_le32(arg->scan_gc_ena);
+ cmd->scan_restart_ena = __cpu_to_le32(arg->scan_restart_ena);
+ cmd->scan_noise_floor_ref = __cpu_to_le32(arg->scan_noise_floor_ref);
+ cmd->scan_init_delay = __cpu_to_le32(arg->scan_init_delay);
+ cmd->scan_nb_tone_thr = __cpu_to_le32(arg->scan_nb_tone_thr);
+ cmd->scan_str_bin_thr = __cpu_to_le32(arg->scan_str_bin_thr);
+ cmd->scan_wb_rpt_mode = __cpu_to_le32(arg->scan_wb_rpt_mode);
+ cmd->scan_rssi_rpt_mode = __cpu_to_le32(arg->scan_rssi_rpt_mode);
+ cmd->scan_rssi_thr = __cpu_to_le32(arg->scan_rssi_thr);
+ cmd->scan_pwr_format = __cpu_to_le32(arg->scan_pwr_format);
+ cmd->scan_rpt_mode = __cpu_to_le32(arg->scan_rpt_mode);
+ cmd->scan_bin_scale = __cpu_to_le32(arg->scan_bin_scale);
+ cmd->scan_dbm_adj = __cpu_to_le32(arg->scan_dbm_adj);
+ cmd->scan_chn_mask = __cpu_to_le32(arg->scan_chn_mask);
+
+ cmdid = ar->wmi.cmd->vdev_spectral_scan_configure_cmdid;
+ return ath10k_wmi_cmd_send(ar, skb, cmdid);
+}
+
+int ath10k_wmi_vdev_spectral_enable(struct ath10k *ar, u32 vdev_id, u32 trigger,
+ u32 enable)
+{
+ struct wmi_vdev_spectral_enable_cmd *cmd;
+ struct sk_buff *skb;
+ u32 cmdid;
+
+ skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+ if (!skb)
+ return -ENOMEM;
+
+ cmd = (struct wmi_vdev_spectral_enable_cmd *)skb->data;
+ cmd->vdev_id = __cpu_to_le32(vdev_id);
+ cmd->trigger_cmd = __cpu_to_le32(trigger);
+ cmd->enable_cmd = __cpu_to_le32(enable);
+
+ cmdid = ar->wmi.cmd->vdev_spectral_scan_enable_cmdid;
+ return ath10k_wmi_cmd_send(ar, skb, cmdid);
+}
+
int ath10k_wmi_peer_create(struct ath10k *ar, u32 vdev_id,
const u8 peer_addr[ETH_ALEN])
{