Implement useful functions to help debug and test nxpwifi.
For example, file "fake_radar_detect" can generate fake radar
detection which can be used to test AP DFS mode of nxpwifi
without real radar detection triggerred by FW.
Signed-off-by: David Lin <yu-hao.lin@nxp.com>
---
drivers/net/wireless/nxp/nxpwifi/debugfs.c | 1041 ++++++++++++++++++++
1 file changed, 1041 insertions(+)
create mode 100644 drivers/net/wireless/nxp/nxpwifi/debugfs.c
diff --git a/drivers/net/wireless/nxp/nxpwifi/debugfs.c b/drivers/net/wireless/nxp/nxpwifi/debugfs.c
new file mode 100644
index 000000000000..1cfeb22272b9
--- /dev/null
+++ b/drivers/net/wireless/nxp/nxpwifi/debugfs.c
@@ -0,0 +1,1041 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * NXP Wireless LAN device driver: debugfs
+ *
+ * Copyright 2011-2024 NXP
+ */
+
+#include <linux/debugfs.h>
+
+#include "main.h"
+#include "cmdevt.h"
+#include "11n.h"
+
+static struct dentry *nxpwifi_dfs_dir;
+
+static char *bss_modes[] = {
+ "UNSPECIFIED",
+ "ADHOC",
+ "STATION",
+ "AP",
+ "AP_VLAN",
+ "WDS",
+ "MONITOR",
+ "MESH_POINT",
+ "P2P_CLIENT",
+ "P2P_GO",
+ "P2P_DEVICE",
+};
+
+/* Proc info file read handler.
+ *
+ * This function is called when the 'info' file is opened for reading.
+ * It prints the following driver related information -
+ * - Driver name
+ * - Driver version
+ * - Driver extended version
+ * - Interface name
+ * - BSS mode
+ * - Media state (connected or disconnected)
+ * - MAC address
+ * - Total number of Tx bytes
+ * - Total number of Rx bytes
+ * - Total number of Tx packets
+ * - Total number of Rx packets
+ * - Total number of dropped Tx packets
+ * - Total number of dropped Rx packets
+ * - Total number of corrupted Tx packets
+ * - Total number of corrupted Rx packets
+ * - Carrier status (on or off)
+ * - Tx queue status (started or stopped)
+ *
+ * For STA mode drivers, it also prints the following extra -
+ * - ESSID
+ * - BSSID
+ * - Channel
+ * - Region code
+ * - Multicast count
+ * - Multicast addresses
+ */
+static ssize_t
+nxpwifi_info_read(struct file *file, char __user *ubuf,
+ size_t count, loff_t *ppos)
+{
+ struct nxpwifi_private *priv =
+ (struct nxpwifi_private *)file->private_data;
+ struct net_device *netdev = priv->netdev;
+ struct netdev_hw_addr *ha;
+ struct netdev_queue *txq;
+ unsigned long page = get_zeroed_page(GFP_KERNEL);
+ char *p = (char *)page, fmt[64];
+ struct nxpwifi_bss_info info;
+ ssize_t ret;
+ int i = 0;
+
+ if (!p)
+ return -ENOMEM;
+
+ memset(&info, 0, sizeof(info));
+ ret = nxpwifi_get_bss_info(priv, &info);
+ if (ret)
+ goto free_and_exit;
+
+ nxpwifi_drv_get_driver_version(priv->adapter, fmt, sizeof(fmt) - 1);
+
+ nxpwifi_get_ver_ext(priv, 0);
+
+ p += sprintf(p, "driver_name = ");
+ p += sprintf(p, "\"nxpwifi\"\n");
+ p += sprintf(p, "driver_version = %s", fmt);
+ p += sprintf(p, "\nverext = %s", priv->version_str);
+ p += sprintf(p, "\ninterface_name=\"%s\"\n", netdev->name);
+
+ if (info.bss_mode >= ARRAY_SIZE(bss_modes))
+ p += sprintf(p, "bss_mode=\"%d\"\n", info.bss_mode);
+ else
+ p += sprintf(p, "bss_mode=\"%s\"\n", bss_modes[info.bss_mode]);
+
+ p += sprintf(p, "media_state=\"%s\"\n",
+ (!priv->media_connected ? "Disconnected" : "Connected"));
+ p += sprintf(p, "mac_address=\"%pM\"\n", netdev->dev_addr);
+
+ if (GET_BSS_ROLE(priv) == NXPWIFI_BSS_ROLE_STA) {
+ p += sprintf(p, "multicast_count=\"%d\"\n",
+ netdev_mc_count(netdev));
+ p += sprintf(p, "essid=\"%.*s\"\n", info.ssid.ssid_len,
+ info.ssid.ssid);
+ p += sprintf(p, "bssid=\"%pM\"\n", info.bssid);
+ p += sprintf(p, "channel=\"%d\"\n", (int)info.bss_chan);
+ p += sprintf(p, "country_code = \"%s\"\n", info.country_code);
+ p += sprintf(p, "region_code=\"0x%x\"\n",
+ priv->adapter->region_code);
+
+ netdev_for_each_mc_addr(ha, netdev)
+ p += sprintf(p, "multicast_address[%d]=\"%pM\"\n",
+ i++, ha->addr);
+ }
+
+ p += sprintf(p, "num_tx_bytes = %lu\n", priv->stats.tx_bytes);
+ p += sprintf(p, "num_rx_bytes = %lu\n", priv->stats.rx_bytes);
+ p += sprintf(p, "num_tx_pkts = %lu\n", priv->stats.tx_packets);
+ p += sprintf(p, "num_rx_pkts = %lu\n", priv->stats.rx_packets);
+ p += sprintf(p, "num_tx_pkts_dropped = %lu\n", priv->stats.tx_dropped);
+ p += sprintf(p, "num_rx_pkts_dropped = %lu\n", priv->stats.rx_dropped);
+ p += sprintf(p, "num_tx_pkts_err = %lu\n", priv->stats.tx_errors);
+ p += sprintf(p, "num_rx_pkts_err = %lu\n", priv->stats.rx_errors);
+ p += sprintf(p, "carrier %s\n", ((netif_carrier_ok(priv->netdev))
+ ? "on" : "off"));
+ p += sprintf(p, "tx queue");
+ for (i = 0; i < netdev->num_tx_queues; i++) {
+ txq = netdev_get_tx_queue(netdev, i);
+ p += sprintf(p, " %d:%s", i, netif_tx_queue_stopped(txq) ?
+ "stopped" : "started");
+ }
+ p += sprintf(p, "\n");
+
+ ret = simple_read_from_buffer(ubuf, count, ppos, (char *)page,
+ (unsigned long)p - page);
+
+free_and_exit:
+ free_page(page);
+ return ret;
+}
+
+/* Proc getlog file read handler.
+ *
+ * This function is called when the 'getlog' file is opened for reading
+ * It prints the following log information -
+ * - Number of multicast Tx frames
+ * - Number of failed packets
+ * - Number of Tx retries
+ * - Number of multicast Tx retries
+ * - Number of duplicate frames
+ * - Number of RTS successes
+ * - Number of RTS failures
+ * - Number of ACK failures
+ * - Number of fragmented Rx frames
+ * - Number of multicast Rx frames
+ * - Number of FCS errors
+ * - Number of Tx frames
+ * - WEP ICV error counts
+ * - Number of received beacons
+ * - Number of missed beacons
+ */
+static ssize_t
+nxpwifi_getlog_read(struct file *file, char __user *ubuf,
+ size_t count, loff_t *ppos)
+{
+ struct nxpwifi_private *priv =
+ (struct nxpwifi_private *)file->private_data;
+ unsigned long page = get_zeroed_page(GFP_KERNEL);
+ char *p = (char *)page;
+ ssize_t ret;
+ struct nxpwifi_ds_get_stats stats;
+
+ if (!p)
+ return -ENOMEM;
+
+ memset(&stats, 0, sizeof(stats));
+ ret = nxpwifi_get_stats_info(priv, &stats);
+ if (ret)
+ goto free_and_exit;
+
+ p += sprintf(p, "\n"
+ "mcasttxframe %u\n"
+ "failed %u\n"
+ "retry %u\n"
+ "multiretry %u\n"
+ "framedup %u\n"
+ "rtssuccess %u\n"
+ "rtsfailure %u\n"
+ "ackfailure %u\n"
+ "rxfrag %u\n"
+ "mcastrxframe %u\n"
+ "fcserror %u\n"
+ "txframe %u\n"
+ "wepicverrcnt-1 %u\n"
+ "wepicverrcnt-2 %u\n"
+ "wepicverrcnt-3 %u\n"
+ "wepicverrcnt-4 %u\n"
+ "bcn_rcv_cnt %u\n"
+ "bcn_miss_cnt %u\n",
+ stats.mcast_tx_frame,
+ stats.failed,
+ stats.retry,
+ stats.multi_retry,
+ stats.frame_dup,
+ stats.rts_success,
+ stats.rts_failure,
+ stats.ack_failure,
+ stats.rx_frag,
+ stats.mcast_rx_frame,
+ stats.fcs_error,
+ stats.tx_frame,
+ stats.wep_icv_error[0],
+ stats.wep_icv_error[1],
+ stats.wep_icv_error[2],
+ stats.wep_icv_error[3],
+ stats.bcn_rcv_cnt,
+ stats.bcn_miss_cnt);
+
+ ret = simple_read_from_buffer(ubuf, count, ppos, (char *)page,
+ (unsigned long)p - page);
+
+free_and_exit:
+ free_page(page);
+ return ret;
+}
+
+/* Sysfs histogram file read handler.
+ *
+ * This function is called when the 'histogram' file is opened for reading
+ * It prints the following histogram information -
+ * - Number of histogram samples
+ * - Receive packet number of each rx_rate
+ * - Receive packet number of each snr
+ * - Receive packet number of each nosie_flr
+ * - Receive packet number of each signal streath
+ */
+static ssize_t
+nxpwifi_histogram_read(struct file *file, char __user *ubuf,
+ size_t count, loff_t *ppos)
+{
+ struct nxpwifi_private *priv =
+ (struct nxpwifi_private *)file->private_data;
+ ssize_t ret;
+ struct nxpwifi_histogram_data *phist_data;
+ int i, value;
+ unsigned long page = get_zeroed_page(GFP_KERNEL);
+ char *p = (char *)page;
+
+ if (!p)
+ return -ENOMEM;
+
+ if (!priv || !priv->hist_data) {
+ ret = -EFAULT;
+ goto free_and_exit;
+ }
+
+ phist_data = priv->hist_data;
+
+ p += sprintf(p, "\n"
+ "total samples = %d\n",
+ atomic_read(&phist_data->num_samples));
+
+ p += sprintf(p,
+ "rx rates (in Mbps): 0=1M 1=2M 2=5.5M 3=11M 4=6M 5=9M 6=12M\n"
+ "7=18M 8=24M 9=36M 10=48M 11=54M 12-27=MCS0-15(BW20) 28-43=MCS0-15(BW40)\n");
+
+ if (ISSUPP_11ACENABLED(priv->adapter->fw_cap_info)) {
+ p += sprintf(p,
+ "44-53=MCS0-9(VHT:BW20) 54-63=MCS0-9(VHT:BW40) 64-73=MCS0-9(VHT:BW80)\n\n");
+ } else {
+ p += sprintf(p, "\n");
+ }
+
+ for (i = 0; i < NXPWIFI_MAX_RX_RATES; i++) {
+ value = atomic_read(&phist_data->rx_rate[i]);
+ if (value)
+ p += sprintf(p, "rx_rate[%02d] = %d\n", i, value);
+ }
+
+ if (ISSUPP_11ACENABLED(priv->adapter->fw_cap_info)) {
+ for (i = NXPWIFI_MAX_RX_RATES; i < NXPWIFI_MAX_AC_RX_RATES;
+ i++) {
+ value = atomic_read(&phist_data->rx_rate[i]);
+ if (value)
+ p += sprintf(p, "rx_rate[%02d] = %d\n",
+ i, value);
+ }
+ }
+
+ for (i = 0; i < NXPWIFI_MAX_SNR; i++) {
+ value = atomic_read(&phist_data->snr[i]);
+ if (value)
+ p += sprintf(p, "snr[%02ddB] = %d\n", i, value);
+ }
+ for (i = 0; i < NXPWIFI_MAX_NOISE_FLR; i++) {
+ value = atomic_read(&phist_data->noise_flr[i]);
+ if (value)
+ p += sprintf(p, "noise_flr[%02ddBm] = %d\n",
+ (int)(i - 128), value);
+ }
+ for (i = 0; i < NXPWIFI_MAX_SIG_STRENGTH; i++) {
+ value = atomic_read(&phist_data->sig_str[i]);
+ if (value)
+ p += sprintf(p, "sig_strength[-%02ddBm] = %d\n",
+ i, value);
+ }
+
+ ret = simple_read_from_buffer(ubuf, count, ppos, (char *)page,
+ (unsigned long)p - page);
+
+free_and_exit:
+ free_page(page);
+ return ret;
+}
+
+static ssize_t
+nxpwifi_histogram_write(struct file *file, const char __user *ubuf,
+ size_t count, loff_t *ppos)
+{
+ struct nxpwifi_private *priv = (void *)file->private_data;
+
+ if (priv && priv->hist_data)
+ nxpwifi_hist_data_reset(priv);
+ return 0;
+}
+
+static struct nxpwifi_debug_info info;
+
+/* Proc debug file read handler.
+ *
+ * This function is called when the 'debug' file is opened for reading
+ * It prints the following log information -
+ * - Interrupt count
+ * - WMM AC VO packets count
+ * - WMM AC VI packets count
+ * - WMM AC BE packets count
+ * - WMM AC BK packets count
+ * - Maximum Tx buffer size
+ * - Tx buffer size
+ * - Current Tx buffer size
+ * - Power Save mode
+ * - Power Save state
+ * - Deep Sleep status
+ * - Device wakeup required status
+ * - Number of wakeup tries
+ * - Host Sleep configured status
+ * - Host Sleep activated status
+ * - Number of Tx timeouts
+ * - Number of command timeouts
+ * - Last timed out command ID
+ * - Last timed out command action
+ * - Last command ID
+ * - Last command action
+ * - Last command index
+ * - Last command response ID
+ * - Last command response index
+ * - Last event
+ * - Last event index
+ * - Number of host to card command failures
+ * - Number of sleep confirm command failures
+ * - Number of host to card data failure
+ * - Number of deauthentication events
+ * - Number of disassociation events
+ * - Number of link lost events
+ * - Number of deauthentication commands
+ * - Number of association success commands
+ * - Number of association failure commands
+ * - Number of commands sent
+ * - Number of data packets sent
+ * - Number of command responses received
+ * - Number of events received
+ * - Tx BA stream table (TID, RA)
+ * - Rx reorder table (TID, TA, Start window, Window size, Buffer)
+ */
+static ssize_t
+nxpwifi_debug_read(struct file *file, char __user *ubuf,
+ size_t count, loff_t *ppos)
+{
+ struct nxpwifi_private *priv =
+ (struct nxpwifi_private *)file->private_data;
+ unsigned long page = get_zeroed_page(GFP_KERNEL);
+ char *p = (char *)page;
+ ssize_t ret;
+
+ if (!p)
+ return -ENOMEM;
+
+ ret = nxpwifi_get_debug_info(priv, &info);
+ if (ret)
+ goto free_and_exit;
+
+ p += nxpwifi_debug_info_to_buffer(priv, p, &info);
+
+ ret = simple_read_from_buffer(ubuf, count, ppos, (char *)page,
+ (unsigned long)p - page);
+
+free_and_exit:
+ free_page(page);
+ return ret;
+}
+
+static u32 saved_reg_type, saved_reg_offset, saved_reg_value;
+
+/* Proc regrdwr file write handler.
+ *
+ * This function is called when the 'regrdwr' file is opened for writing
+ *
+ * This function can be used to write to a register.
+ */
+static ssize_t
+nxpwifi_regrdwr_write(struct file *file,
+ const char __user *ubuf, size_t count, loff_t *ppos)
+{
+ char *buf;
+ int ret;
+ u32 reg_type = 0, reg_offset = 0, reg_value = UINT_MAX;
+ int rv;
+
+ buf = memdup_user_nul(ubuf, min(count, (size_t)(PAGE_SIZE - 1)));
+ if (IS_ERR(buf))
+ return PTR_ERR(buf);
+
+ rv = sscanf(buf, "%u %x %x", ®_type, ®_offset, ®_value);
+
+ if (rv != 3) {
+ ret = -EINVAL;
+ goto done;
+ }
+
+ if (reg_type == 0 || reg_offset == 0) {
+ ret = -EINVAL;
+ goto done;
+ } else {
+ saved_reg_type = reg_type;
+ saved_reg_offset = reg_offset;
+ saved_reg_value = reg_value;
+ ret = count;
+ }
+done:
+ kfree(buf);
+ return ret;
+}
+
+/* Proc regrdwr file read handler.
+ *
+ * This function is called when the 'regrdwr' file is opened for reading
+ *
+ * This function can be used to read from a register.
+ */
+static ssize_t
+nxpwifi_regrdwr_read(struct file *file, char __user *ubuf,
+ size_t count, loff_t *ppos)
+{
+ struct nxpwifi_private *priv =
+ (struct nxpwifi_private *)file->private_data;
+ unsigned long addr = get_zeroed_page(GFP_KERNEL);
+ char *buf = (char *)addr;
+ int pos = 0, ret = 0;
+ u32 reg_value;
+
+ if (!buf)
+ return -ENOMEM;
+
+ if (!saved_reg_type) {
+ /* No command has been given */
+ pos += snprintf(buf, PAGE_SIZE, "0");
+ goto done;
+ }
+ /* Set command has been given */
+ if (saved_reg_value != UINT_MAX) {
+ ret = nxpwifi_reg_write(priv, saved_reg_type, saved_reg_offset,
+ saved_reg_value);
+
+ pos += snprintf(buf, PAGE_SIZE, "%u 0x%x 0x%x\n",
+ saved_reg_type, saved_reg_offset,
+ saved_reg_value);
+
+ ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos);
+
+ goto done;
+ }
+ /* Get command has been given */
+ ret = nxpwifi_reg_read(priv, saved_reg_type,
+ saved_reg_offset, ®_value);
+ if (ret) {
+ ret = -EINVAL;
+ goto done;
+ }
+
+ pos += snprintf(buf, PAGE_SIZE, "%u 0x%x 0x%x\n", saved_reg_type,
+ saved_reg_offset, reg_value);
+
+ ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos);
+
+done:
+ free_page(addr);
+ return ret;
+}
+
+/* Proc debug_mask file read handler.
+ * This function is called when the 'debug_mask' file is opened for reading
+ * This function can be used read driver debugging mask value.
+ */
+static ssize_t
+nxpwifi_debug_mask_read(struct file *file, char __user *ubuf,
+ size_t count, loff_t *ppos)
+{
+ struct nxpwifi_private *priv =
+ (struct nxpwifi_private *)file->private_data;
+ unsigned long page = get_zeroed_page(GFP_KERNEL);
+ char *buf = (char *)page;
+ size_t ret = 0;
+ int pos = 0;
+
+ if (!buf)
+ return -ENOMEM;
+
+ pos += snprintf(buf, PAGE_SIZE, "debug mask=0x%08x\n",
+ priv->adapter->debug_mask);
+ ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos);
+
+ free_page(page);
+ return ret;
+}
+
+/* Proc debug_mask file read handler.
+ * This function is called when the 'debug_mask' file is opened for reading
+ * This function can be used read driver debugging mask value.
+ */
+static ssize_t
+nxpwifi_debug_mask_write(struct file *file, const char __user *ubuf,
+ size_t count, loff_t *ppos)
+{
+ int ret;
+ unsigned long debug_mask;
+ struct nxpwifi_private *priv = (void *)file->private_data;
+ char *buf;
+
+ buf = memdup_user_nul(ubuf, min(count, (size_t)(PAGE_SIZE - 1)));
+ if (IS_ERR(buf))
+ return PTR_ERR(buf);
+
+ if (kstrtoul(buf, 0, &debug_mask)) {
+ ret = -EINVAL;
+ goto done;
+ }
+
+ priv->adapter->debug_mask = debug_mask;
+ ret = count;
+done:
+ kfree(buf);
+ return ret;
+}
+
+/* debugfs verext file write handler.
+ * This function is called when the 'verext' file is opened for write
+ */
+static ssize_t
+nxpwifi_verext_write(struct file *file, const char __user *ubuf,
+ size_t count, loff_t *ppos)
+{
+ int ret;
+ u32 versionstrsel;
+ struct nxpwifi_private *priv = (void *)file->private_data;
+
+ ret = kstrtou32_from_user(ubuf, count, 10, &versionstrsel);
+ if (ret)
+ return ret;
+
+ priv->versionstrsel = versionstrsel;
+
+ return count;
+}
+
+/* Proc verext file read handler.
+ * This function is called when the 'verext' file is opened for reading
+ * This function can be used read driver exteneed verion string.
+ */
+static ssize_t
+nxpwifi_verext_read(struct file *file, char __user *ubuf,
+ size_t count, loff_t *ppos)
+{
+ struct nxpwifi_private *priv =
+ (struct nxpwifi_private *)file->private_data;
+ char buf[256];
+ int ret;
+
+ nxpwifi_get_ver_ext(priv, priv->versionstrsel);
+ ret = snprintf(buf, sizeof(buf), "version string: %s\n",
+ priv->version_str);
+
+ return simple_read_from_buffer(ubuf, count, ppos, buf, ret);
+}
+
+/* Proc memrw file write handler.
+ * This function is called when the 'memrw' file is opened for writing
+ * This function can be used to write to a memory location.
+ */
+static ssize_t
+nxpwifi_memrw_write(struct file *file, const char __user *ubuf, size_t count,
+ loff_t *ppos)
+{
+ int ret;
+ char cmd;
+ struct nxpwifi_ds_mem_rw mem_rw;
+ u16 cmd_action;
+ struct nxpwifi_private *priv = (void *)file->private_data;
+ char *buf;
+
+ buf = memdup_user_nul(ubuf, min(count, (size_t)(PAGE_SIZE - 1)));
+ if (IS_ERR(buf))
+ return PTR_ERR(buf);
+
+ ret = sscanf(buf, "%c %x %x", &cmd, &mem_rw.addr, &mem_rw.value);
+ if (ret != 3) {
+ ret = -EINVAL;
+ goto done;
+ }
+
+ if ((cmd == 'r') || (cmd == 'R')) {
+ cmd_action = HOST_ACT_GEN_GET;
+ mem_rw.value = 0;
+ } else if ((cmd == 'w') || (cmd == 'W')) {
+ cmd_action = HOST_ACT_GEN_SET;
+ } else {
+ ret = -EINVAL;
+ goto done;
+ }
+
+ memcpy(&priv->mem_rw, &mem_rw, sizeof(mem_rw));
+ ret = nxpwifi_send_cmd(priv, HOST_CMD_MEM_ACCESS, cmd_action, 0,
+ &mem_rw, true);
+ if (!ret)
+ ret = count;
+
+done:
+ kfree(buf);
+ return ret;
+}
+
+/* Proc memrw file read handler.
+ * This function is called when the 'memrw' file is opened for reading
+ * This function can be used to read from a memory location.
+ */
+static ssize_t
+nxpwifi_memrw_read(struct file *file, char __user *ubuf,
+ size_t count, loff_t *ppos)
+{
+ struct nxpwifi_private *priv = (void *)file->private_data;
+ unsigned long addr = get_zeroed_page(GFP_KERNEL);
+ char *buf = (char *)addr;
+ int ret, pos = 0;
+
+ if (!buf)
+ return -ENOMEM;
+
+ pos += snprintf(buf, PAGE_SIZE, "0x%x 0x%x\n", priv->mem_rw.addr,
+ priv->mem_rw.value);
+ ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos);
+
+ free_page(addr);
+ return ret;
+}
+
+static u32 saved_offset = -1, saved_bytes = -1;
+
+/* Proc rdeeprom file write handler.
+ *
+ * This function is called when the 'rdeeprom' file is opened for writing
+ *
+ * This function can be used to write to a RDEEPROM location.
+ */
+static ssize_t
+nxpwifi_rdeeprom_write(struct file *file,
+ const char __user *ubuf, size_t count, loff_t *ppos)
+{
+ char *buf;
+ int ret = 0;
+ int offset = -1, bytes = -1;
+ int rv;
+
+ buf = memdup_user_nul(ubuf, min(count, (size_t)(PAGE_SIZE - 1)));
+ if (IS_ERR(buf))
+ return PTR_ERR(buf);
+
+ rv = sscanf(buf, "%d %d", &offset, &bytes);
+
+ if (rv != 2) {
+ ret = -EINVAL;
+ goto done;
+ }
+
+ if (offset == -1 || bytes == -1) {
+ ret = -EINVAL;
+ goto done;
+ } else {
+ saved_offset = offset;
+ saved_bytes = bytes;
+ ret = count;
+ }
+done:
+ kfree(buf);
+ return ret;
+}
+
+/* Proc rdeeprom read write handler.
+ *
+ * This function is called when the 'rdeeprom' file is opened for reading
+ *
+ * This function can be used to read from a RDEEPROM location.
+ */
+static ssize_t
+nxpwifi_rdeeprom_read(struct file *file, char __user *ubuf,
+ size_t count, loff_t *ppos)
+{
+ struct nxpwifi_private *priv =
+ (struct nxpwifi_private *)file->private_data;
+ unsigned long addr = get_zeroed_page(GFP_KERNEL);
+ char *buf = (char *)addr;
+ int pos, ret, i;
+ u8 value[MAX_EEPROM_DATA];
+
+ if (!buf)
+ return -ENOMEM;
+
+ if (saved_offset == -1) {
+ /* No command has been given */
+ pos = snprintf(buf, PAGE_SIZE, "0");
+ goto done;
+ }
+
+ /* Get command has been given */
+ ret = nxpwifi_eeprom_read(priv, (u16)saved_offset,
+ (u16)saved_bytes, value);
+ if (ret) {
+ ret = -EINVAL;
+ goto out_free;
+ }
+
+ pos = snprintf(buf, PAGE_SIZE, "%d %d ", saved_offset, saved_bytes);
+
+ for (i = 0; i < saved_bytes; i++)
+ pos += scnprintf(buf + pos, PAGE_SIZE - pos, "%d ", value[i]);
+
+done:
+ ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos);
+out_free:
+ free_page(addr);
+ return ret;
+}
+
+/* Proc hscfg file write handler
+ * This function can be used to configure the host sleep parameters.
+ */
+static ssize_t
+nxpwifi_hscfg_write(struct file *file, const char __user *ubuf,
+ size_t count, loff_t *ppos)
+{
+ struct nxpwifi_private *priv = (void *)file->private_data;
+ char *buf;
+ int ret, arg_num;
+ struct nxpwifi_ds_hs_cfg hscfg;
+ int conditions = HS_CFG_COND_DEF;
+ u32 gpio = HS_CFG_GPIO_DEF, gap = HS_CFG_GAP_DEF;
+
+ buf = memdup_user_nul(ubuf, min(count, (size_t)(PAGE_SIZE - 1)));
+ if (IS_ERR(buf))
+ return PTR_ERR(buf);
+
+ arg_num = sscanf(buf, "%d %x %x", &conditions, &gpio, &gap);
+
+ memset(&hscfg, 0, sizeof(struct nxpwifi_ds_hs_cfg));
+
+ if (arg_num > 3) {
+ nxpwifi_dbg(priv->adapter, ERROR,
+ "Too many arguments\n");
+ ret = -EINVAL;
+ goto done;
+ }
+
+ if (arg_num >= 1 && arg_num < 3)
+ nxpwifi_set_hs_params(priv, HOST_ACT_GEN_GET,
+ NXPWIFI_SYNC_CMD, &hscfg);
+
+ if (arg_num) {
+ if (conditions == HS_CFG_CANCEL) {
+ nxpwifi_cancel_hs(priv, NXPWIFI_ASYNC_CMD);
+ ret = count;
+ goto done;
+ }
+ hscfg.conditions = conditions;
+ }
+ if (arg_num >= 2)
+ hscfg.gpio = gpio;
+ if (arg_num == 3)
+ hscfg.gap = gap;
+
+ hscfg.is_invoke_hostcmd = false;
+ nxpwifi_set_hs_params(priv, HOST_ACT_GEN_SET,
+ NXPWIFI_SYNC_CMD, &hscfg);
+
+ nxpwifi_enable_hs(priv->adapter);
+ clear_bit(NXPWIFI_IS_HS_ENABLING, &priv->adapter->work_flags);
+ ret = count;
+done:
+ kfree(buf);
+ return ret;
+}
+
+/* Proc hscfg file read handler
+ * This function can be used to read host sleep configuration
+ * parameters from driver.
+ */
+static ssize_t
+nxpwifi_hscfg_read(struct file *file, char __user *ubuf,
+ size_t count, loff_t *ppos)
+{
+ struct nxpwifi_private *priv = (void *)file->private_data;
+ unsigned long addr = get_zeroed_page(GFP_KERNEL);
+ char *buf = (char *)addr;
+ int pos, ret;
+ struct nxpwifi_ds_hs_cfg hscfg;
+
+ if (!buf)
+ return -ENOMEM;
+
+ nxpwifi_set_hs_params(priv, HOST_ACT_GEN_GET,
+ NXPWIFI_SYNC_CMD, &hscfg);
+
+ pos = snprintf(buf, PAGE_SIZE, "%u 0x%x 0x%x\n", hscfg.conditions,
+ hscfg.gpio, hscfg.gap);
+
+ ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos);
+
+ free_page(addr);
+ return ret;
+}
+
+static ssize_t
+nxpwifi_timeshare_coex_read(struct file *file, char __user *ubuf,
+ size_t count, loff_t *ppos)
+{
+ struct nxpwifi_private *priv = file->private_data;
+ char buf[3];
+ bool timeshare_coex;
+ int ret;
+ unsigned int len;
+
+ if (priv->adapter->fw_api_ver != NXPWIFI_FW_V15)
+ return -EOPNOTSUPP;
+
+ ret = nxpwifi_send_cmd(priv, HOST_CMD_ROBUST_COEX,
+ HOST_ACT_GEN_GET, 0, ×hare_coex, true);
+ if (ret)
+ return ret;
+
+ len = sprintf(buf, "%d\n", timeshare_coex);
+ return simple_read_from_buffer(ubuf, count, ppos, buf, len);
+}
+
+static ssize_t
+nxpwifi_timeshare_coex_write(struct file *file, const char __user *ubuf,
+ size_t count, loff_t *ppos)
+{
+ bool timeshare_coex;
+ struct nxpwifi_private *priv = file->private_data;
+ int ret;
+
+ if (priv->adapter->fw_api_ver != NXPWIFI_FW_V15)
+ return -EOPNOTSUPP;
+
+ ret = kstrtobool_from_user(ubuf, count, ×hare_coex);
+ if (ret)
+ return ret;
+
+ ret = nxpwifi_send_cmd(priv, HOST_CMD_ROBUST_COEX,
+ HOST_ACT_GEN_SET, 0, ×hare_coex, true);
+ if (ret)
+ return ret;
+ else
+ return count;
+}
+
+static ssize_t
+nxpwifi_reset_write(struct file *file,
+ const char __user *ubuf, size_t count, loff_t *ppos)
+{
+ struct nxpwifi_private *priv = file->private_data;
+ struct nxpwifi_adapter *adapter = priv->adapter;
+ bool result;
+ int rc;
+
+ rc = kstrtobool_from_user(ubuf, count, &result);
+ if (rc)
+ return rc;
+
+ if (!result)
+ return -EINVAL;
+
+ if (adapter->if_ops.card_reset) {
+ dev_info(adapter->dev, "Resetting per request\n");
+ adapter->if_ops.card_reset(adapter);
+ }
+
+ return count;
+}
+
+static ssize_t
+nxpwifi_fake_radar_detect_write(struct file *file,
+ const char __user *ubuf,
+ size_t count, loff_t *ppos)
+{
+ struct nxpwifi_private *priv = file->private_data;
+ struct nxpwifi_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) {
+ nxpwifi_dbg(adapter, MSG,
+ "Generate fake radar detected during CAC\n");
+ if (nxpwifi_stop_radar_detection(priv, &priv->dfs_chandef))
+ nxpwifi_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) {
+ nxpwifi_dbg(adapter, MSG,
+ "Generate fake radar detected\n");
+ cfg80211_radar_event(adapter->wiphy,
+ &priv->dfs_chandef,
+ GFP_KERNEL);
+ }
+ }
+
+ return count;
+}
+
+#define NXPWIFI_DFS_ADD_FILE(name) debugfs_create_file(#name, 0644, \
+ priv->dfs_dev_dir, priv, \
+ &nxpwifi_dfs_##name##_fops)
+
+#define NXPWIFI_DFS_FILE_OPS(name) \
+static const struct file_operations nxpwifi_dfs_##name##_fops = { \
+ .read = nxpwifi_##name##_read, \
+ .write = nxpwifi_##name##_write, \
+ .open = simple_open, \
+}
+
+#define NXPWIFI_DFS_FILE_READ_OPS(name) \
+static const struct file_operations nxpwifi_dfs_##name##_fops = { \
+ .read = nxpwifi_##name##_read, \
+ .open = simple_open, \
+}
+
+#define NXPWIFI_DFS_FILE_WRITE_OPS(name) \
+static const struct file_operations nxpwifi_dfs_##name##_fops = { \
+ .write = nxpwifi_##name##_write, \
+ .open = simple_open, \
+}
+
+NXPWIFI_DFS_FILE_READ_OPS(info);
+NXPWIFI_DFS_FILE_READ_OPS(debug);
+NXPWIFI_DFS_FILE_READ_OPS(getlog);
+NXPWIFI_DFS_FILE_OPS(regrdwr);
+NXPWIFI_DFS_FILE_OPS(rdeeprom);
+NXPWIFI_DFS_FILE_OPS(memrw);
+NXPWIFI_DFS_FILE_OPS(hscfg);
+NXPWIFI_DFS_FILE_OPS(histogram);
+NXPWIFI_DFS_FILE_OPS(debug_mask);
+NXPWIFI_DFS_FILE_OPS(timeshare_coex);
+NXPWIFI_DFS_FILE_WRITE_OPS(reset);
+NXPWIFI_DFS_FILE_WRITE_OPS(fake_radar_detect);
+NXPWIFI_DFS_FILE_OPS(verext);
+
+/* This function creates the debug FS directory structure and the files.
+ */
+void
+nxpwifi_dev_debugfs_init(struct nxpwifi_private *priv)
+{
+ if (!nxpwifi_dfs_dir || !priv)
+ return;
+
+ priv->dfs_dev_dir = debugfs_create_dir(priv->netdev->name,
+ nxpwifi_dfs_dir);
+
+ NXPWIFI_DFS_ADD_FILE(info);
+ NXPWIFI_DFS_ADD_FILE(debug);
+ NXPWIFI_DFS_ADD_FILE(getlog);
+ NXPWIFI_DFS_ADD_FILE(regrdwr);
+ NXPWIFI_DFS_ADD_FILE(rdeeprom);
+
+ NXPWIFI_DFS_ADD_FILE(memrw);
+ NXPWIFI_DFS_ADD_FILE(hscfg);
+ NXPWIFI_DFS_ADD_FILE(histogram);
+ NXPWIFI_DFS_ADD_FILE(debug_mask);
+ NXPWIFI_DFS_ADD_FILE(timeshare_coex);
+ NXPWIFI_DFS_ADD_FILE(reset);
+ NXPWIFI_DFS_ADD_FILE(fake_radar_detect);
+ NXPWIFI_DFS_ADD_FILE(verext);
+}
+
+/* This function removes the debug FS directory structure and the files.
+ */
+void
+nxpwifi_dev_debugfs_remove(struct nxpwifi_private *priv)
+{
+ if (!priv)
+ return;
+
+ debugfs_remove_recursive(priv->dfs_dev_dir);
+}
+
+/* This function creates the top level proc directory.
+ */
+void
+nxpwifi_debugfs_init(void)
+{
+ if (!nxpwifi_dfs_dir)
+ nxpwifi_dfs_dir = debugfs_create_dir("nxpwifi", NULL);
+}
+
+/* This function removes the top level proc directory.
+ */
+void
+nxpwifi_debugfs_remove(void)
+{
+ debugfs_remove(nxpwifi_dfs_dir);
+}
--
2.34.1© 2016 - 2024 Red Hat, Inc.