From f51d917b73307a8547c65c3cc86a672a7b4ba98d Mon Sep 17 00:00:00 2001 From: Ramya Gnanasekar Date: Thu, 4 Apr 2024 09:35:58 +0300 Subject: [PATCH] wifi: ath12k: debugfs: radar simulation support Create dfs_simulate_radar debugfs in ath12k debugfs directory. Usage: echo 1 > /sys/kernel/debug/ath12k/pci-0000:06:00.0/mac0/dfs_simulate_radar This debugfs helps user to simulate RADAR interference in run time. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1 Signed-off-by: Ramya Gnanasekar Acked-by: Jeff Johnson Signed-off-by: Kalle Valo Link: https://msgid.link/20240320171305.655288-3-quic_rgnanase@quicinc.com --- drivers/net/wireless/ath/ath12k/debugfs.c | 29 +++++++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/drivers/net/wireless/ath/ath12k/debugfs.c b/drivers/net/wireless/ath/ath12k/debugfs.c index 65f3c8bf3f10..8d8ba951093b 100644 --- a/drivers/net/wireless/ath/ath12k/debugfs.c +++ b/drivers/net/wireless/ath/ath12k/debugfs.c @@ -7,6 +7,29 @@ #include "core.h" #include "debugfs.h" +static ssize_t ath12k_write_simulate_radar(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ath12k *ar = file->private_data; + int ret; + + mutex_lock(&ar->conf_mutex); + ret = ath12k_wmi_simulate_radar(ar); + if (ret) + goto exit; + + ret = count; +exit: + mutex_unlock(&ar->conf_mutex); + return ret; +} + +static const struct file_operations fops_simulate_radar = { + .write = ath12k_write_simulate_radar, + .open = simple_open +}; + void ath12k_debugfs_soc_create(struct ath12k_base *ab) { bool dput_needed; @@ -58,4 +81,10 @@ void ath12k_debugfs_register(struct ath12k *ar) /* Create a symlink under ieee80211/phy* */ scnprintf(buf, sizeof(buf), "../../ath12k/%pd2", ar->debug.debugfs_pdev); debugfs_create_symlink("ath12k", hw->wiphy->debugfsdir, buf); + + if (ar->mac.sbands[NL80211_BAND_5GHZ].channels) { + debugfs_create_file("dfs_simulate_radar", 0200, + ar->debug.debugfs_pdev, ar, + &fops_simulate_radar); + } } -- 2.25.1