ath10k: add phyerr/dfs handling

Handle phyerr, dfs event, radar_report and fft_report.
Add also debugfs dfs_simulate_radar and dfs_stats files.
Use ath dfs pattern detector.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

1 files changed, 90 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/ath10k/debug.c b/drivers/net/wireless/ath/ath10k/debug.c
index 760ff2289e3c..13705d41795e 100644
--- a/drivers/net/wireless/ath/ath10k/debug.c
+++ b/drivers/net/wireless/ath/ath10k/debug.c
@@ -639,6 +639,86 @@ void ath10k_debug_stop(struct ath10k *ar)
                 cancel_delayed_work(&ar->debug.htt_stats_dwork);
 }
 
+static ssize_t ath10k_write_simulate_radar(struct file *file,
+                                           const char __user *user_buf,
+                                           size_t count, loff_t *ppos)
+{
+        struct ath10k *ar = file->private_data;
+
+        ieee80211_radar_detected(ar->hw);
+
+        return count;
+}
+
+static const struct file_operations fops_simulate_radar = {
+        .write = ath10k_write_simulate_radar,
+        .open = simple_open,
+        .owner = THIS_MODULE,
+        .llseek = default_llseek,
+};
+
+#define ATH10K_DFS_STAT(s, p) (\
+        len += scnprintf(buf + len, size - len, "%-28s : %10u\n", s, \
+                         ar->debug.dfs_stats.p))
+
+#define ATH10K_DFS_POOL_STAT(s, p) (\
+        len += scnprintf(buf + len, size - len, "%-28s : %10u\n", s, \
+                         ar->debug.dfs_pool_stats.p))
+
+static ssize_t ath10k_read_dfs_stats(struct file *file, char __user *user_buf,
+                                     size_t count, loff_t *ppos)
+{
+        int retval = 0, len = 0;
+        const int size = 8000;
+        struct ath10k *ar = file->private_data;
+        char *buf;
+
+        buf = kzalloc(size, GFP_KERNEL);
+        if (buf == NULL)
+                return -ENOMEM;
+
+        if (!ar->dfs_detector) {
+                len += scnprintf(buf + len, size - len, "DFS not enabled\n");
+                goto exit;
+        }
+
+        ar->debug.dfs_pool_stats =
+                        ar->dfs_detector->get_stats(ar->dfs_detector);
+
+        len += scnprintf(buf + len, size - len, "Pulse detector statistics:\n");
+
+        ATH10K_DFS_STAT("reported phy errors", phy_errors);
+        ATH10K_DFS_STAT("pulse events reported", pulses_total);
+        ATH10K_DFS_STAT("DFS pulses detected", pulses_detected);
+        ATH10K_DFS_STAT("DFS pulses discarded", pulses_discarded);
+        ATH10K_DFS_STAT("Radars detected", radar_detected);
+
+        len += scnprintf(buf + len, size - len, "Global Pool statistics:\n");
+        ATH10K_DFS_POOL_STAT("Pool references", pool_reference);
+        ATH10K_DFS_POOL_STAT("Pulses allocated", pulse_allocated);
+        ATH10K_DFS_POOL_STAT("Pulses alloc error", pulse_alloc_error);
+        ATH10K_DFS_POOL_STAT("Pulses in use", pulse_used);
+        ATH10K_DFS_POOL_STAT("Seqs. allocated", pseq_allocated);
+        ATH10K_DFS_POOL_STAT("Seqs. alloc error", pseq_alloc_error);
+        ATH10K_DFS_POOL_STAT("Seqs. in use", pseq_used);
+
+exit:
+        if (len > size)
+                len = size;
+
+        retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
+        kfree(buf);
+
+        return retval;
+}
+
+static const struct file_operations fops_dfs_stats = {
+        .read = ath10k_read_dfs_stats,
+        .open = simple_open,
+        .owner = THIS_MODULE,
+        .llseek = default_llseek,
+};
+
 int ath10k_debug_create(struct ath10k *ar)
 {
         ar->debug.debugfs_phy = debugfs_create_dir("ath10k",
@@ -667,6 +747,16 @@ int ath10k_debug_create(struct ath10k *ar)
         debugfs_create_file("htt_stats_mask", S_IRUSR, ar->debug.debugfs_phy,
                             ar, &fops_htt_stats_mask);
 
+        if (config_enabled(CONFIG_ATH10K_DFS_CERTIFIED)) {
+                debugfs_create_file("dfs_simulate_radar", S_IWUSR,
+                                    ar->debug.debugfs_phy, ar,
+                                    &fops_simulate_radar);
+
+                debugfs_create_file("dfs_stats", S_IRUSR,
+                                    ar->debug.debugfs_phy, ar,
+                                    &fops_dfs_stats);
+        }
+
         return 0;
 }