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Re: [PATCH 12/16] iwlwifi: mvm: enable sending HE_AIR_SNIFFER command via debugfs

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On 8/31/2018 11:56 AM, Luca Coelho wrote:
From: Shaul Triebitz <shaul.triebitz@xxxxxxxxx>

In order to receive TB (Trigger Based) PPDU in monitor mode,
the Driver must send the HE_AIR_SNIFFER_CONFIG_CMD host command.
Enable that via debugfs.

Signed-off-by: Liad Kaufman <liad.kaufman@xxxxxxxxx>
Signed-off-by: Ido Yariv <idox.yariv@xxxxxxxxx>
Signed-off-by: Shaul Triebitz <shaul.triebitz@xxxxxxxxx>
Signed-off-by: Luca Coelho <luciano.coelho@xxxxxxxxx>
---
  .../wireless/intel/iwlwifi/fw/api/datapath.h  |  5 ++
  .../net/wireless/intel/iwlwifi/fw/api/mac.h   | 14 +++++
  .../net/wireless/intel/iwlwifi/mvm/debugfs.c  | 53 +++++++++++++++++++
  3 files changed, 72 insertions(+)

[snip]

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
index 202158d03d36..725b97ecb447 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
@@ -1727,6 +1727,57 @@ iwl_dbgfs_send_echo_cmd_write(struct iwl_mvm *mvm, char *buf,
  	return ret ?: count;
  }

+static ssize_t
+iwl_dbgfs_set_aid_read(struct file *file, char __user *user_buf,
+		       size_t count, loff_t *ppos)
+{
+	return 0;
+}
+
+static ssize_t
+iwl_dbgfs_set_aid_write(struct file *file, const char __user *user_buf,
+			size_t count, loff_t *ppos)
+{
+	struct iwl_mvm *mvm = file->private_data;
+	struct iwl_he_monitor_cmd he_mon_cmd = {};
+	u8 tmp_buf[32];
+	u32 aid;
+	int ret;
+
+	if (!iwl_mvm_firmware_running(mvm))
+		return -EIO;
+
+	if (count > sizeof(tmp_buf))
+		return -EINVAL;
+
+	if (copy_from_user(tmp_buf, user_buf, count))
+		return -EIO;
+
+	ret = sscanf(tmp_buf, "%x %2hhx:%2hhx:%2hhx:%2hhx:%2hhx:%2hhx", &aid,
+		     &he_mon_cmd.bssid[0], &he_mon_cmd.bssid[1],
+		     &he_mon_cmd.bssid[2], &he_mon_cmd.bssid[3],
+		     &he_mon_cmd.bssid[4], &he_mon_cmd.bssid[5]);
+	if (ret != 7)
+		return -EINVAL;
+
+	he_mon_cmd.aid = cpu_to_le16(aid);
+
+	mutex_lock(&mvm->mutex);
+	ret = iwl_mvm_send_cmd_pdu(mvm, iwl_cmd_id(HE_AIR_SNIFFER_CONFIG_CMD,
+						   DATA_PATH_GROUP, 0), 0,
+				   sizeof(he_mon_cmd), &he_mon_cmd);
+	mutex_unlock(&mvm->mutex);
+
+	return ret ?: count;
+}
+
+static const struct file_operations iwl_dbgfs_set_aid_ops = {
+	.read = iwl_dbgfs_set_aid_read,
+	.write = iwl_dbgfs_set_aid_write,
+	.open = simple_open,
+	.llseek = default_llseek,
+};

What's with the name 'set_aid'?

Regards,
Arend




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