| Message ID | 20241009060935.9074-1-yu-hao.lin@nxp.com (mailing list archive) |
|---|---|
| State | Changes Requested |
| Delegated to: | Kalle Valo |
| Headers | show |
| Series | wifi: nxpwifi: add debugfs file to mimic radar detection | expand |
Sorry. It should be "wifi: mwifiex: ...". I will submit correct one later. > From: David Lin <yu-hao.lin@nxp.com> > Sent: Wednesday, October 9, 2024 2:10 PM > To: linux-wireless@vger.kernel.org > Cc: linux-kernel@vger.kernel.org; briannorris@chromium.org; > kvalo@kernel.org; francesco@dolcini.it; Pete Hsieh > <tsung-hsien.hsieh@nxp.com>; s.hauer@pengutronix.de; David Lin > <yu-hao.lin@nxp.com> > Subject: [PATCH] wifi: nxpwifi: add debugfs file to mimic radar detection > > Debugfs file "fake_radar_detect" is created to mimic radar detection. Echo 1 > to this file will generate radar event to cfg80211, which can be used to test AP > DFS mode without real radar detection from firmware. > > Signed-off-by: David Lin <yu-hao.lin@nxp.com> > --- > .../net/wireless/marvell/mwifiex/debugfs.c | 43 +++++++++++++++++++ > 1 file changed, 43 insertions(+) > > diff --git a/drivers/net/wireless/marvell/mwifiex/debugfs.c > b/drivers/net/wireless/marvell/mwifiex/debugfs.c > index 9deaf59dcb62..cf9604661aed 100644 > --- a/drivers/net/wireless/marvell/mwifiex/debugfs.c > +++ b/drivers/net/wireless/marvell/mwifiex/debugfs.c > @@ -909,6 +909,47 @@ mwifiex_reset_write(struct file *file, > return count; > } > > +static ssize_t > +mwifiex_fake_radar_detect_write(struct file *file, > + const char __user *ubuf, > + size_t count, loff_t *ppos) > +{ > + struct mwifiex_private *priv = file->private_data; > + struct mwifiex_adapter *adapter = priv->adapter; > + bool result; > + int rc; > + > + rc = kstrtobool_from_user(ubuf, count, &result); > + if (rc) > + return rc; > + > + if (!result) > + return -EINVAL; > + > + if (priv->wdev.links[0].cac_started) { > + mwifiex_dbg(adapter, MSG, > + "Generate fake radar detected during CAC\n"); > + if (mwifiex_stop_radar_detection(priv, &priv->dfs_chandef)) > + mwifiex_dbg(adapter, ERROR, > + "Failed to stop CAC in FW\n"); > + cancel_delayed_work_sync(&priv->dfs_cac_work); > + cfg80211_cac_event(priv->netdev, &priv->dfs_chandef, > + NL80211_RADAR_CAC_ABORTED, GFP_KERNEL, 0); > + cfg80211_radar_event(adapter->wiphy, &priv->dfs_chandef, > + GFP_KERNEL); > + } else { > + if (priv->bss_chandef.chan->dfs_cac_ms) { > + mwifiex_dbg(adapter, MSG, > + "Generate fake radar detected\n"); > + cfg80211_radar_event(adapter->wiphy, > + &priv->dfs_chandef, > + GFP_KERNEL); > + } > + } > + > + return count; > +} > + > #define MWIFIEX_DFS_ADD_FILE(name) do > { \ > debugfs_create_file(#name, 0644, priv->dfs_dev_dir, priv, \ > &mwifiex_dfs_##name##_fops); \ > @@ -945,6 +986,7 @@ MWIFIEX_DFS_FILE_OPS(histogram); > MWIFIEX_DFS_FILE_OPS(debug_mask); > MWIFIEX_DFS_FILE_OPS(timeshare_coex); > MWIFIEX_DFS_FILE_WRITE_OPS(reset); > +MWIFIEX_DFS_FILE_WRITE_OPS(fake_radar_detect); > MWIFIEX_DFS_FILE_OPS(verext); > > /* > @@ -971,6 +1013,7 @@ mwifiex_dev_debugfs_init(struct mwifiex_private > *priv) > MWIFIEX_DFS_ADD_FILE(debug_mask); > MWIFIEX_DFS_ADD_FILE(timeshare_coex); > MWIFIEX_DFS_ADD_FILE(reset); > + MWIFIEX_DFS_ADD_FILE(fake_radar_detect); > MWIFIEX_DFS_ADD_FILE(verext); > } > > > base-commit: 5a4d42c1688c88f3be6aef46b0ea6c32694cd2b8 > prerequisite-patch-id: ababe4f5cc6f52d23552f4ada6efb26655f247e3 > -- > 2.34.1
diff --git a/drivers/net/wireless/marvell/mwifiex/debugfs.c b/drivers/net/wireless/marvell/mwifiex/debugfs.c index 9deaf59dcb62..cf9604661aed 100644 --- a/drivers/net/wireless/marvell/mwifiex/debugfs.c +++ b/drivers/net/wireless/marvell/mwifiex/debugfs.c @@ -909,6 +909,47 @@ mwifiex_reset_write(struct file *file, return count; } +static ssize_t +mwifiex_fake_radar_detect_write(struct file *file, + const char __user *ubuf, + size_t count, loff_t *ppos) +{ + struct mwifiex_private *priv = file->private_data; + struct mwifiex_adapter *adapter = priv->adapter; + bool result; + int rc; + + rc = kstrtobool_from_user(ubuf, count, &result); + if (rc) + return rc; + + if (!result) + return -EINVAL; + + if (priv->wdev.links[0].cac_started) { + mwifiex_dbg(adapter, MSG, + "Generate fake radar detected during CAC\n"); + if (mwifiex_stop_radar_detection(priv, &priv->dfs_chandef)) + mwifiex_dbg(adapter, ERROR, + "Failed to stop CAC in FW\n"); + cancel_delayed_work_sync(&priv->dfs_cac_work); + cfg80211_cac_event(priv->netdev, &priv->dfs_chandef, + NL80211_RADAR_CAC_ABORTED, GFP_KERNEL, 0); + cfg80211_radar_event(adapter->wiphy, &priv->dfs_chandef, + GFP_KERNEL); + } else { + if (priv->bss_chandef.chan->dfs_cac_ms) { + mwifiex_dbg(adapter, MSG, + "Generate fake radar detected\n"); + cfg80211_radar_event(adapter->wiphy, + &priv->dfs_chandef, + GFP_KERNEL); + } + } + + return count; +} + #define MWIFIEX_DFS_ADD_FILE(name) do { \ debugfs_create_file(#name, 0644, priv->dfs_dev_dir, priv, \ &mwifiex_dfs_##name##_fops); \ @@ -945,6 +986,7 @@ MWIFIEX_DFS_FILE_OPS(histogram); MWIFIEX_DFS_FILE_OPS(debug_mask); MWIFIEX_DFS_FILE_OPS(timeshare_coex); MWIFIEX_DFS_FILE_WRITE_OPS(reset); +MWIFIEX_DFS_FILE_WRITE_OPS(fake_radar_detect); MWIFIEX_DFS_FILE_OPS(verext); /* @@ -971,6 +1013,7 @@ mwifiex_dev_debugfs_init(struct mwifiex_private *priv) MWIFIEX_DFS_ADD_FILE(debug_mask); MWIFIEX_DFS_ADD_FILE(timeshare_coex); MWIFIEX_DFS_ADD_FILE(reset); + MWIFIEX_DFS_ADD_FILE(fake_radar_detect); MWIFIEX_DFS_ADD_FILE(verext); }
Debugfs file "fake_radar_detect" is created to mimic radar detection. Echo 1 to this file will generate radar event to cfg80211, which can be used to test AP DFS mode without real radar detection from firmware. Signed-off-by: David Lin <yu-hao.lin@nxp.com> --- .../net/wireless/marvell/mwifiex/debugfs.c | 43 +++++++++++++++++++ 1 file changed, 43 insertions(+) base-commit: 5a4d42c1688c88f3be6aef46b0ea6c32694cd2b8 prerequisite-patch-id: ababe4f5cc6f52d23552f4ada6efb26655f247e3