iwlwifi: split the drivers for agn and legacy devices 3945/4965
Intel WiFi devices 3945 and 4965 now have their own driver in the folder
drivers/net/wireless/iwlegacy
Add support to build these drivers independently of the driver for
AGN devices. Selecting the 3945 builds iwl3945.ko and iwl_legacy.ko,
and selecting the 4965 builds iwl4965.ko and iwl_legacy.ko. iwl-legacy.ko
contains code shared between both devices.
The 3945 is an ABG/BG device, with no support for 802.11n. The 4965 is a 2x3
ABGN device.
Signed-off-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com>
Acked-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
diff --git a/drivers/net/wireless/iwlegacy/iwl-debugfs.c b/drivers/net/wireless/iwlegacy/iwl-debugfs.c
new file mode 100644
index 0000000..6ea9c4f
--- /dev/null
+++ b/drivers/net/wireless/iwlegacy/iwl-debugfs.c
@@ -0,0 +1,1467 @@
+/******************************************************************************
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
+ * USA
+ *
+ * The full GNU General Public License is included in this distribution
+ * in the file called LICENSE.GPL.
+ *
+ * Contact Information:
+ * Intel Linux Wireless <ilw@linux.intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *****************************************************************************/
+#include <linux/ieee80211.h>
+#include <net/mac80211.h>
+
+
+#include "iwl-dev.h"
+#include "iwl-debug.h"
+#include "iwl-core.h"
+#include "iwl-io.h"
+
+/* create and remove of files */
+#define DEBUGFS_ADD_FILE(name, parent, mode) do { \
+ if (!debugfs_create_file(#name, mode, parent, priv, \
+ &iwl_legacy_dbgfs_##name##_ops)) \
+ goto err; \
+} while (0)
+
+#define DEBUGFS_ADD_BOOL(name, parent, ptr) do { \
+ struct dentry *__tmp; \
+ __tmp = debugfs_create_bool(#name, S_IWUSR | S_IRUSR, \
+ parent, ptr); \
+ if (IS_ERR(__tmp) || !__tmp) \
+ goto err; \
+} while (0)
+
+#define DEBUGFS_ADD_X32(name, parent, ptr) do { \
+ struct dentry *__tmp; \
+ __tmp = debugfs_create_x32(#name, S_IWUSR | S_IRUSR, \
+ parent, ptr); \
+ if (IS_ERR(__tmp) || !__tmp) \
+ goto err; \
+} while (0)
+
+/* file operation */
+#define DEBUGFS_READ_FUNC(name) \
+static ssize_t iwl_legacy_dbgfs_##name##_read(struct file *file, \
+ char __user *user_buf, \
+ size_t count, loff_t *ppos);
+
+#define DEBUGFS_WRITE_FUNC(name) \
+static ssize_t iwl_legacy_dbgfs_##name##_write(struct file *file, \
+ const char __user *user_buf, \
+ size_t count, loff_t *ppos);
+
+
+static int
+iwl_legacy_dbgfs_open_file_generic(struct inode *inode, struct file *file)
+{
+ file->private_data = inode->i_private;
+ return 0;
+}
+
+#define DEBUGFS_READ_FILE_OPS(name) \
+ DEBUGFS_READ_FUNC(name); \
+static const struct file_operations iwl_legacy_dbgfs_##name##_ops = { \
+ .read = iwl_legacy_dbgfs_##name##_read, \
+ .open = iwl_legacy_dbgfs_open_file_generic, \
+ .llseek = generic_file_llseek, \
+};
+
+#define DEBUGFS_WRITE_FILE_OPS(name) \
+ DEBUGFS_WRITE_FUNC(name); \
+static const struct file_operations iwl_legacy_dbgfs_##name##_ops = { \
+ .write = iwl_legacy_dbgfs_##name##_write, \
+ .open = iwl_legacy_dbgfs_open_file_generic, \
+ .llseek = generic_file_llseek, \
+};
+
+#define DEBUGFS_READ_WRITE_FILE_OPS(name) \
+ DEBUGFS_READ_FUNC(name); \
+ DEBUGFS_WRITE_FUNC(name); \
+static const struct file_operations iwl_legacy_dbgfs_##name##_ops = { \
+ .write = iwl_legacy_dbgfs_##name##_write, \
+ .read = iwl_legacy_dbgfs_##name##_read, \
+ .open = iwl_legacy_dbgfs_open_file_generic, \
+ .llseek = generic_file_llseek, \
+};
+
+static ssize_t iwl_legacy_dbgfs_tx_statistics_read(struct file *file,
+ char __user *user_buf,
+ size_t count, loff_t *ppos) {
+
+ struct iwl_priv *priv = file->private_data;
+ char *buf;
+ int pos = 0;
+
+ int cnt;
+ ssize_t ret;
+ const size_t bufsz = 100 +
+ sizeof(char) * 50 * (MANAGEMENT_MAX + CONTROL_MAX);
+ buf = kzalloc(bufsz, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+ pos += scnprintf(buf + pos, bufsz - pos, "Management:\n");
+ for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) {
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "\t%25s\t\t: %u\n",
+ iwl_legacy_get_mgmt_string(cnt),
+ priv->tx_stats.mgmt[cnt]);
+ }
+ pos += scnprintf(buf + pos, bufsz - pos, "Control\n");
+ for (cnt = 0; cnt < CONTROL_MAX; cnt++) {
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "\t%25s\t\t: %u\n",
+ iwl_legacy_get_ctrl_string(cnt),
+ priv->tx_stats.ctrl[cnt]);
+ }
+ pos += scnprintf(buf + pos, bufsz - pos, "Data:\n");
+ pos += scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n",
+ priv->tx_stats.data_cnt);
+ pos += scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n",
+ priv->tx_stats.data_bytes);
+ ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+ kfree(buf);
+ return ret;
+}
+
+static ssize_t
+iwl_legacy_dbgfs_clear_traffic_statistics_write(struct file *file,
+ const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct iwl_priv *priv = file->private_data;
+ u32 clear_flag;
+ char buf[8];
+ int buf_size;
+
+ memset(buf, 0, sizeof(buf));
+ buf_size = min(count, sizeof(buf) - 1);
+ if (copy_from_user(buf, user_buf, buf_size))
+ return -EFAULT;
+ if (sscanf(buf, "%x", &clear_flag) != 1)
+ return -EFAULT;
+ iwl_legacy_clear_traffic_stats(priv);
+
+ return count;
+}
+
+static ssize_t iwl_legacy_dbgfs_rx_statistics_read(struct file *file,
+ char __user *user_buf,
+ size_t count, loff_t *ppos) {
+
+ struct iwl_priv *priv = file->private_data;
+ char *buf;
+ int pos = 0;
+ int cnt;
+ ssize_t ret;
+ const size_t bufsz = 100 +
+ sizeof(char) * 50 * (MANAGEMENT_MAX + CONTROL_MAX);
+ buf = kzalloc(bufsz, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ pos += scnprintf(buf + pos, bufsz - pos, "Management:\n");
+ for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) {
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "\t%25s\t\t: %u\n",
+ iwl_legacy_get_mgmt_string(cnt),
+ priv->rx_stats.mgmt[cnt]);
+ }
+ pos += scnprintf(buf + pos, bufsz - pos, "Control:\n");
+ for (cnt = 0; cnt < CONTROL_MAX; cnt++) {
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "\t%25s\t\t: %u\n",
+ iwl_legacy_get_ctrl_string(cnt),
+ priv->rx_stats.ctrl[cnt]);
+ }
+ pos += scnprintf(buf + pos, bufsz - pos, "Data:\n");
+ pos += scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n",
+ priv->rx_stats.data_cnt);
+ pos += scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n",
+ priv->rx_stats.data_bytes);
+
+ ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+ kfree(buf);
+ return ret;
+}
+
+#define BYTE1_MASK 0x000000ff;
+#define BYTE2_MASK 0x0000ffff;
+#define BYTE3_MASK 0x00ffffff;
+static ssize_t iwl_legacy_dbgfs_sram_read(struct file *file,
+ char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ u32 val;
+ char *buf;
+ ssize_t ret;
+ int i;
+ int pos = 0;
+ struct iwl_priv *priv = file->private_data;
+ size_t bufsz;
+
+ /* default is to dump the entire data segment */
+ if (!priv->dbgfs_sram_offset && !priv->dbgfs_sram_len) {
+ priv->dbgfs_sram_offset = 0x800000;
+ if (priv->ucode_type == UCODE_INIT)
+ priv->dbgfs_sram_len = priv->ucode_init_data.len;
+ else
+ priv->dbgfs_sram_len = priv->ucode_data.len;
+ }
+ bufsz = 30 + priv->dbgfs_sram_len * sizeof(char) * 10;
+ buf = kmalloc(bufsz, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+ pos += scnprintf(buf + pos, bufsz - pos, "sram_len: 0x%x\n",
+ priv->dbgfs_sram_len);
+ pos += scnprintf(buf + pos, bufsz - pos, "sram_offset: 0x%x\n",
+ priv->dbgfs_sram_offset);
+ for (i = priv->dbgfs_sram_len; i > 0; i -= 4) {
+ val = iwl_legacy_read_targ_mem(priv, priv->dbgfs_sram_offset + \
+ priv->dbgfs_sram_len - i);
+ if (i < 4) {
+ switch (i) {
+ case 1:
+ val &= BYTE1_MASK;
+ break;
+ case 2:
+ val &= BYTE2_MASK;
+ break;
+ case 3:
+ val &= BYTE3_MASK;
+ break;
+ }
+ }
+ if (!(i % 16))
+ pos += scnprintf(buf + pos, bufsz - pos, "\n");
+ pos += scnprintf(buf + pos, bufsz - pos, "0x%08x ", val);
+ }
+ pos += scnprintf(buf + pos, bufsz - pos, "\n");
+
+ ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+ kfree(buf);
+ return ret;
+}
+
+static ssize_t iwl_legacy_dbgfs_sram_write(struct file *file,
+ const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct iwl_priv *priv = file->private_data;
+ char buf[64];
+ int buf_size;
+ u32 offset, len;
+
+ memset(buf, 0, sizeof(buf));
+ buf_size = min(count, sizeof(buf) - 1);
+ if (copy_from_user(buf, user_buf, buf_size))
+ return -EFAULT;
+
+ if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
+ priv->dbgfs_sram_offset = offset;
+ priv->dbgfs_sram_len = len;
+ } else {
+ priv->dbgfs_sram_offset = 0;
+ priv->dbgfs_sram_len = 0;
+ }
+
+ return count;
+}
+
+static ssize_t
+iwl_legacy_dbgfs_stations_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct iwl_priv *priv = file->private_data;
+ struct iwl_station_entry *station;
+ int max_sta = priv->hw_params.max_stations;
+ char *buf;
+ int i, j, pos = 0;
+ ssize_t ret;
+ /* Add 30 for initial string */
+ const size_t bufsz = 30 + sizeof(char) * 500 * (priv->num_stations);
+
+ buf = kmalloc(bufsz, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ pos += scnprintf(buf + pos, bufsz - pos, "num of stations: %d\n\n",
+ priv->num_stations);
+
+ for (i = 0; i < max_sta; i++) {
+ station = &priv->stations[i];
+ if (!station->used)
+ continue;
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "station %d - addr: %pM, flags: %#x\n",
+ i, station->sta.sta.addr,
+ station->sta.station_flags_msk);
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "TID\tseq_num\ttxq_id\tframes\ttfds\t");
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "start_idx\tbitmap\t\t\trate_n_flags\n");
+
+ for (j = 0; j < MAX_TID_COUNT; j++) {
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "%d:\t%#x\t%#x\t%u\t%u\t%u\t\t%#.16llx\t%#x",
+ j, station->tid[j].seq_number,
+ station->tid[j].agg.txq_id,
+ station->tid[j].agg.frame_count,
+ station->tid[j].tfds_in_queue,
+ station->tid[j].agg.start_idx,
+ station->tid[j].agg.bitmap,
+ station->tid[j].agg.rate_n_flags);
+
+ if (station->tid[j].agg.wait_for_ba)
+ pos += scnprintf(buf + pos, bufsz - pos,
+ " - waitforba");
+ pos += scnprintf(buf + pos, bufsz - pos, "\n");
+ }
+
+ pos += scnprintf(buf + pos, bufsz - pos, "\n");
+ }
+
+ ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+ kfree(buf);
+ return ret;
+}
+
+static ssize_t iwl_legacy_dbgfs_nvm_read(struct file *file,
+ char __user *user_buf,
+ size_t count,
+ loff_t *ppos)
+{
+ ssize_t ret;
+ struct iwl_priv *priv = file->private_data;
+ int pos = 0, ofs = 0, buf_size = 0;
+ const u8 *ptr;
+ char *buf;
+ u16 eeprom_ver;
+ size_t eeprom_len = priv->cfg->base_params->eeprom_size;
+ buf_size = 4 * eeprom_len + 256;
+
+ if (eeprom_len % 16) {
+ IWL_ERR(priv, "NVM size is not multiple of 16.\n");
+ return -ENODATA;
+ }
+
+ ptr = priv->eeprom;
+ if (!ptr) {
+ IWL_ERR(priv, "Invalid EEPROM memory\n");
+ return -ENOMEM;
+ }
+
+ /* 4 characters for byte 0xYY */
+ buf = kzalloc(buf_size, GFP_KERNEL);
+ if (!buf) {
+ IWL_ERR(priv, "Can not allocate Buffer\n");
+ return -ENOMEM;
+ }
+ eeprom_ver = iwl_legacy_eeprom_query16(priv, EEPROM_VERSION);
+ pos += scnprintf(buf + pos, buf_size - pos, "EEPROM "
+ "version: 0x%x\n", eeprom_ver);
+ for (ofs = 0 ; ofs < eeprom_len ; ofs += 16) {
+ pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x ", ofs);
+ hex_dump_to_buffer(ptr + ofs, 16 , 16, 2, buf + pos,
+ buf_size - pos, 0);
+ pos += strlen(buf + pos);
+ if (buf_size - pos > 0)
+ buf[pos++] = '\n';
+ }
+
+ ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+ kfree(buf);
+ return ret;
+}
+
+static ssize_t iwl_legacy_dbgfs_log_event_read(struct file *file,
+ char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct iwl_priv *priv = file->private_data;
+ char *buf;
+ int pos = 0;
+ ssize_t ret = -ENOMEM;
+
+ ret = pos = priv->cfg->ops->lib->dump_nic_event_log(
+ priv, true, &buf, true);
+ if (buf) {
+ ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+ kfree(buf);
+ }
+ return ret;
+}
+
+static ssize_t iwl_legacy_dbgfs_log_event_write(struct file *file,
+ const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct iwl_priv *priv = file->private_data;
+ u32 event_log_flag;
+ char buf[8];
+ int buf_size;
+
+ memset(buf, 0, sizeof(buf));
+ buf_size = min(count, sizeof(buf) - 1);
+ if (copy_from_user(buf, user_buf, buf_size))
+ return -EFAULT;
+ if (sscanf(buf, "%d", &event_log_flag) != 1)
+ return -EFAULT;
+ if (event_log_flag == 1)
+ priv->cfg->ops->lib->dump_nic_event_log(priv, true,
+ NULL, false);
+
+ return count;
+}
+
+
+
+static ssize_t
+iwl_legacy_dbgfs_channels_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct iwl_priv *priv = file->private_data;
+ struct ieee80211_channel *channels = NULL;
+ const struct ieee80211_supported_band *supp_band = NULL;
+ int pos = 0, i, bufsz = PAGE_SIZE;
+ char *buf;
+ ssize_t ret;
+
+ if (!test_bit(STATUS_GEO_CONFIGURED, &priv->status))
+ return -EAGAIN;
+
+ buf = kzalloc(bufsz, GFP_KERNEL);
+ if (!buf) {
+ IWL_ERR(priv, "Can not allocate Buffer\n");
+ return -ENOMEM;
+ }
+
+ supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_2GHZ);
+ if (supp_band) {
+ channels = supp_band->channels;
+
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "Displaying %d channels in 2.4GHz band 802.11bg):\n",
+ supp_band->n_channels);
+
+ for (i = 0; i < supp_band->n_channels; i++)
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "%d: %ddBm: BSS%s%s, %s.\n",
+ channels[i].hw_value,
+ channels[i].max_power,
+ channels[i].flags & IEEE80211_CHAN_RADAR ?
+ " (IEEE 802.11h required)" : "",
+ ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
+ || (channels[i].flags &
+ IEEE80211_CHAN_RADAR)) ? "" :
+ ", IBSS",
+ channels[i].flags &
+ IEEE80211_CHAN_PASSIVE_SCAN ?
+ "passive only" : "active/passive");
+ }
+ supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_5GHZ);
+ if (supp_band) {
+ channels = supp_band->channels;
+
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "Displaying %d channels in 5.2GHz band (802.11a)\n",
+ supp_band->n_channels);
+
+ for (i = 0; i < supp_band->n_channels; i++)
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "%d: %ddBm: BSS%s%s, %s.\n",
+ channels[i].hw_value,
+ channels[i].max_power,
+ channels[i].flags & IEEE80211_CHAN_RADAR ?
+ " (IEEE 802.11h required)" : "",
+ ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
+ || (channels[i].flags &
+ IEEE80211_CHAN_RADAR)) ? "" :
+ ", IBSS",
+ channels[i].flags &
+ IEEE80211_CHAN_PASSIVE_SCAN ?
+ "passive only" : "active/passive");
+ }
+ ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+ kfree(buf);
+ return ret;
+}
+
+static ssize_t iwl_legacy_dbgfs_status_read(struct file *file,
+ char __user *user_buf,
+ size_t count, loff_t *ppos) {
+
+ struct iwl_priv *priv = file->private_data;
+ char buf[512];
+ int pos = 0;
+ const size_t bufsz = sizeof(buf);
+
+ pos += scnprintf(buf + pos, bufsz - pos, "STATUS_HCMD_ACTIVE:\t %d\n",
+ test_bit(STATUS_HCMD_ACTIVE, &priv->status));
+ pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INT_ENABLED:\t %d\n",
+ test_bit(STATUS_INT_ENABLED, &priv->status));
+ pos += scnprintf(buf + pos, bufsz - pos, "STATUS_RF_KILL_HW:\t %d\n",
+ test_bit(STATUS_RF_KILL_HW, &priv->status));
+ pos += scnprintf(buf + pos, bufsz - pos, "STATUS_CT_KILL:\t\t %d\n",
+ test_bit(STATUS_CT_KILL, &priv->status));
+ pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INIT:\t\t %d\n",
+ test_bit(STATUS_INIT, &priv->status));
+ pos += scnprintf(buf + pos, bufsz - pos, "STATUS_ALIVE:\t\t %d\n",
+ test_bit(STATUS_ALIVE, &priv->status));
+ pos += scnprintf(buf + pos, bufsz - pos, "STATUS_READY:\t\t %d\n",
+ test_bit(STATUS_READY, &priv->status));
+ pos += scnprintf(buf + pos, bufsz - pos, "STATUS_TEMPERATURE:\t %d\n",
+ test_bit(STATUS_TEMPERATURE, &priv->status));
+ pos += scnprintf(buf + pos, bufsz - pos, "STATUS_GEO_CONFIGURED:\t %d\n",
+ test_bit(STATUS_GEO_CONFIGURED, &priv->status));
+ pos += scnprintf(buf + pos, bufsz - pos, "STATUS_EXIT_PENDING:\t %d\n",
+ test_bit(STATUS_EXIT_PENDING, &priv->status));
+ pos += scnprintf(buf + pos, bufsz - pos, "STATUS_STATISTICS:\t %d\n",
+ test_bit(STATUS_STATISTICS, &priv->status));
+ pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCANNING:\t %d\n",
+ test_bit(STATUS_SCANNING, &priv->status));
+ pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_ABORTING:\t %d\n",
+ test_bit(STATUS_SCAN_ABORTING, &priv->status));
+ pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_HW:\t\t %d\n",
+ test_bit(STATUS_SCAN_HW, &priv->status));
+ pos += scnprintf(buf + pos, bufsz - pos, "STATUS_POWER_PMI:\t %d\n",
+ test_bit(STATUS_POWER_PMI, &priv->status));
+ pos += scnprintf(buf + pos, bufsz - pos, "STATUS_FW_ERROR:\t %d\n",
+ test_bit(STATUS_FW_ERROR, &priv->status));
+ return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+}
+
+static ssize_t iwl_legacy_dbgfs_interrupt_read(struct file *file,
+ char __user *user_buf,
+ size_t count, loff_t *ppos) {
+
+ struct iwl_priv *priv = file->private_data;
+ int pos = 0;
+ int cnt = 0;
+ char *buf;
+ int bufsz = 24 * 64; /* 24 items * 64 char per item */
+ ssize_t ret;
+
+ buf = kzalloc(bufsz, GFP_KERNEL);
+ if (!buf) {
+ IWL_ERR(priv, "Can not allocate Buffer\n");
+ return -ENOMEM;
+ }
+
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "Interrupt Statistics Report:\n");
+
+ pos += scnprintf(buf + pos, bufsz - pos, "HW Error:\t\t\t %u\n",
+ priv->isr_stats.hw);
+ pos += scnprintf(buf + pos, bufsz - pos, "SW Error:\t\t\t %u\n",
+ priv->isr_stats.sw);
+ if (priv->isr_stats.sw || priv->isr_stats.hw) {
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "\tLast Restarting Code: 0x%X\n",
+ priv->isr_stats.err_code);
+ }
+#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
+ pos += scnprintf(buf + pos, bufsz - pos, "Frame transmitted:\t\t %u\n",
+ priv->isr_stats.sch);
+ pos += scnprintf(buf + pos, bufsz - pos, "Alive interrupt:\t\t %u\n",
+ priv->isr_stats.alive);
+#endif
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "HW RF KILL switch toggled:\t %u\n",
+ priv->isr_stats.rfkill);
+
+ pos += scnprintf(buf + pos, bufsz - pos, "CT KILL:\t\t\t %u\n",
+ priv->isr_stats.ctkill);
+
+ pos += scnprintf(buf + pos, bufsz - pos, "Wakeup Interrupt:\t\t %u\n",
+ priv->isr_stats.wakeup);
+
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "Rx command responses:\t\t %u\n",
+ priv->isr_stats.rx);
+ for (cnt = 0; cnt < REPLY_MAX; cnt++) {
+ if (priv->isr_stats.rx_handlers[cnt] > 0)
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "\tRx handler[%36s]:\t\t %u\n",
+ iwl_legacy_get_cmd_string(cnt),
+ priv->isr_stats.rx_handlers[cnt]);
+ }
+
+ pos += scnprintf(buf + pos, bufsz - pos, "Tx/FH interrupt:\t\t %u\n",
+ priv->isr_stats.tx);
+
+ pos += scnprintf(buf + pos, bufsz - pos, "Unexpected INTA:\t\t %u\n",
+ priv->isr_stats.unhandled);
+
+ ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+ kfree(buf);
+ return ret;
+}
+
+static ssize_t iwl_legacy_dbgfs_interrupt_write(struct file *file,
+ const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct iwl_priv *priv = file->private_data;
+ char buf[8];
+ int buf_size;
+ u32 reset_flag;
+
+ memset(buf, 0, sizeof(buf));
+ buf_size = min(count, sizeof(buf) - 1);
+ if (copy_from_user(buf, user_buf, buf_size))
+ return -EFAULT;
+ if (sscanf(buf, "%x", &reset_flag) != 1)
+ return -EFAULT;
+ if (reset_flag == 0)
+ iwl_legacy_clear_isr_stats(priv);
+
+ return count;
+}
+
+static ssize_t
+iwl_legacy_dbgfs_qos_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct iwl_priv *priv = file->private_data;
+ struct iwl_rxon_context *ctx;
+ int pos = 0, i;
+ char buf[256 * NUM_IWL_RXON_CTX];
+ const size_t bufsz = sizeof(buf);
+
+ for_each_context(priv, ctx) {
+ pos += scnprintf(buf + pos, bufsz - pos, "context %d:\n",
+ ctx->ctxid);
+ for (i = 0; i < AC_NUM; i++) {
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "\tcw_min\tcw_max\taifsn\ttxop\n");
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "AC[%d]\t%u\t%u\t%u\t%u\n", i,
+ ctx->qos_data.def_qos_parm.ac[i].cw_min,
+ ctx->qos_data.def_qos_parm.ac[i].cw_max,
+ ctx->qos_data.def_qos_parm.ac[i].aifsn,
+ ctx->qos_data.def_qos_parm.ac[i].edca_txop);
+ }
+ pos += scnprintf(buf + pos, bufsz - pos, "\n");
+ }
+ return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+}
+
+static ssize_t iwl_legacy_dbgfs_disable_ht40_write(struct file *file,
+ const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct iwl_priv *priv = file->private_data;
+ char buf[8];
+ int buf_size;
+ int ht40;
+
+ memset(buf, 0, sizeof(buf));
+ buf_size = min(count, sizeof(buf) - 1);
+ if (copy_from_user(buf, user_buf, buf_size))
+ return -EFAULT;
+ if (sscanf(buf, "%d", &ht40) != 1)
+ return -EFAULT;
+ if (!iwl_legacy_is_any_associated(priv))
+ priv->disable_ht40 = ht40 ? true : false;
+ else {
+ IWL_ERR(priv, "Sta associated with AP - "
+ "Change to 40MHz channel support is not allowed\n");
+ return -EINVAL;
+ }
+
+ return count;
+}
+
+static ssize_t iwl_legacy_dbgfs_disable_ht40_read(struct file *file,
+ char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct iwl_priv *priv = file->private_data;
+ char buf[100];
+ int pos = 0;
+ const size_t bufsz = sizeof(buf);
+
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "11n 40MHz Mode: %s\n",
+ priv->disable_ht40 ? "Disabled" : "Enabled");
+ return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+}
+
+DEBUGFS_READ_WRITE_FILE_OPS(sram);
+DEBUGFS_READ_WRITE_FILE_OPS(log_event);
+DEBUGFS_READ_FILE_OPS(nvm);
+DEBUGFS_READ_FILE_OPS(stations);
+DEBUGFS_READ_FILE_OPS(channels);
+DEBUGFS_READ_FILE_OPS(status);
+DEBUGFS_READ_WRITE_FILE_OPS(interrupt);
+DEBUGFS_READ_FILE_OPS(qos);
+DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40);
+
+static ssize_t iwl_legacy_dbgfs_traffic_log_read(struct file *file,
+ char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct iwl_priv *priv = file->private_data;
+ int pos = 0, ofs = 0;
+ int cnt = 0, entry;
+ struct iwl_tx_queue *txq;
+ struct iwl_queue *q;
+ struct iwl_rx_queue *rxq = &priv->rxq;
+ char *buf;
+ int bufsz = ((IWL_TRAFFIC_ENTRIES * IWL_TRAFFIC_ENTRY_SIZE * 64) * 2) +
+ (priv->cfg->base_params->num_of_queues * 32 * 8) + 400;
+ const u8 *ptr;
+ ssize_t ret;
+
+ if (!priv->txq) {
+ IWL_ERR(priv, "txq not ready\n");
+ return -EAGAIN;
+ }
+ buf = kzalloc(bufsz, GFP_KERNEL);
+ if (!buf) {
+ IWL_ERR(priv, "Can not allocate buffer\n");
+ return -ENOMEM;
+ }
+ pos += scnprintf(buf + pos, bufsz - pos, "Tx Queue\n");
+ for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
+ txq = &priv->txq[cnt];
+ q = &txq->q;
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "q[%d]: read_ptr: %u, write_ptr: %u\n",
+ cnt, q->read_ptr, q->write_ptr);
+ }
+ if (priv->tx_traffic && (iwl_debug_level & IWL_DL_TX)) {
+ ptr = priv->tx_traffic;
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "Tx Traffic idx: %u\n", priv->tx_traffic_idx);
+ for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) {
+ for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16;
+ entry++, ofs += 16) {
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "0x%.4x ", ofs);
+ hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
+ buf + pos, bufsz - pos, 0);
+ pos += strlen(buf + pos);
+ if (bufsz - pos > 0)
+ buf[pos++] = '\n';
+ }
+ }
+ }
+
+ pos += scnprintf(buf + pos, bufsz - pos, "Rx Queue\n");
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "read: %u, write: %u\n",
+ rxq->read, rxq->write);
+
+ if (priv->rx_traffic && (iwl_debug_level & IWL_DL_RX)) {
+ ptr = priv->rx_traffic;
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "Rx Traffic idx: %u\n", priv->rx_traffic_idx);
+ for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) {
+ for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16;
+ entry++, ofs += 16) {
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "0x%.4x ", ofs);
+ hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
+ buf + pos, bufsz - pos, 0);
+ pos += strlen(buf + pos);
+ if (bufsz - pos > 0)
+ buf[pos++] = '\n';
+ }
+ }
+ }
+
+ ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+ kfree(buf);
+ return ret;
+}
+
+static ssize_t iwl_legacy_dbgfs_traffic_log_write(struct file *file,
+ const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct iwl_priv *priv = file->private_data;
+ char buf[8];
+ int buf_size;
+ int traffic_log;
+
+ memset(buf, 0, sizeof(buf));
+ buf_size = min(count, sizeof(buf) - 1);
+ if (copy_from_user(buf, user_buf, buf_size))
+ return -EFAULT;
+ if (sscanf(buf, "%d", &traffic_log) != 1)
+ return -EFAULT;
+ if (traffic_log == 0)
+ iwl_legacy_reset_traffic_log(priv);
+
+ return count;
+}
+
+static ssize_t iwl_legacy_dbgfs_tx_queue_read(struct file *file,
+ char __user *user_buf,
+ size_t count, loff_t *ppos) {
+
+ struct iwl_priv *priv = file->private_data;
+ struct iwl_tx_queue *txq;
+ struct iwl_queue *q;
+ char *buf;
+ int pos = 0;
+ int cnt;
+ int ret;
+ const size_t bufsz = sizeof(char) * 64 *
+ priv->cfg->base_params->num_of_queues;
+
+ if (!priv->txq) {
+ IWL_ERR(priv, "txq not ready\n");
+ return -EAGAIN;
+ }
+ buf = kzalloc(bufsz, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
+ txq = &priv->txq[cnt];
+ q = &txq->q;
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "hwq %.2d: read=%u write=%u stop=%d"
+ " swq_id=%#.2x (ac %d/hwq %d)\n",
+ cnt, q->read_ptr, q->write_ptr,
+ !!test_bit(cnt, priv->queue_stopped),
+ txq->swq_id, txq->swq_id & 3,
+ (txq->swq_id >> 2) & 0x1f);
+ if (cnt >= 4)
+ continue;
+ /* for the ACs, display the stop count too */
+ pos += scnprintf(buf + pos, bufsz - pos,
+ " stop-count: %d\n",
+ atomic_read(&priv->queue_stop_count[cnt]));
+ }
+ ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+ kfree(buf);
+ return ret;
+}
+
+static ssize_t iwl_legacy_dbgfs_rx_queue_read(struct file *file,
+ char __user *user_buf,
+ size_t count, loff_t *ppos) {
+
+ struct iwl_priv *priv = file->private_data;
+ struct iwl_rx_queue *rxq = &priv->rxq;
+ char buf[256];
+ int pos = 0;
+ const size_t bufsz = sizeof(buf);
+
+ pos += scnprintf(buf + pos, bufsz - pos, "read: %u\n",
+ rxq->read);
+ pos += scnprintf(buf + pos, bufsz - pos, "write: %u\n",
+ rxq->write);
+ pos += scnprintf(buf + pos, bufsz - pos, "free_count: %u\n",
+ rxq->free_count);
+ if (rxq->rb_stts) {
+ pos += scnprintf(buf + pos, bufsz - pos, "closed_rb_num: %u\n",
+ le16_to_cpu(rxq->rb_stts->closed_rb_num) & 0x0FFF);
+ } else {
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "closed_rb_num: Not Allocated\n");
+ }
+ return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+}
+
+static ssize_t iwl_legacy_dbgfs_ucode_rx_stats_read(struct file *file,
+ char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct iwl_priv *priv = file->private_data;
+ return priv->cfg->ops->lib->debugfs_ops.rx_stats_read(file,
+ user_buf, count, ppos);
+}
+
+static ssize_t iwl_legacy_dbgfs_ucode_tx_stats_read(struct file *file,
+ char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct iwl_priv *priv = file->private_data;
+ return priv->cfg->ops->lib->debugfs_ops.tx_stats_read(file,
+ user_buf, count, ppos);
+}
+
+static ssize_t iwl_legacy_dbgfs_ucode_general_stats_read(struct file *file,
+ char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct iwl_priv *priv = file->private_data;
+ return priv->cfg->ops->lib->debugfs_ops.general_stats_read(file,
+ user_buf, count, ppos);
+}
+
+static ssize_t iwl_legacy_dbgfs_sensitivity_read(struct file *file,
+ char __user *user_buf,
+ size_t count, loff_t *ppos) {
+
+ struct iwl_priv *priv = file->private_data;
+ int pos = 0;
+ int cnt = 0;
+ char *buf;
+ int bufsz = sizeof(struct iwl_sensitivity_data) * 4 + 100;
+ ssize_t ret;
+ struct iwl_sensitivity_data *data;
+
+ data = &priv->sensitivity_data;
+ buf = kzalloc(bufsz, GFP_KERNEL);
+ if (!buf) {
+ IWL_ERR(priv, "Can not allocate Buffer\n");
+ return -ENOMEM;
+ }
+
+ pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm:\t\t\t %u\n",
+ data->auto_corr_ofdm);
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "auto_corr_ofdm_mrc:\t\t %u\n",
+ data->auto_corr_ofdm_mrc);
+ pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_x1:\t\t %u\n",
+ data->auto_corr_ofdm_x1);
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "auto_corr_ofdm_mrc_x1:\t\t %u\n",
+ data->auto_corr_ofdm_mrc_x1);
+ pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck:\t\t\t %u\n",
+ data->auto_corr_cck);
+ pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck_mrc:\t\t %u\n",
+ data->auto_corr_cck_mrc);
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "last_bad_plcp_cnt_ofdm:\t\t %u\n",
+ data->last_bad_plcp_cnt_ofdm);
+ pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_ofdm:\t\t %u\n",
+ data->last_fa_cnt_ofdm);
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "last_bad_plcp_cnt_cck:\t\t %u\n",
+ data->last_bad_plcp_cnt_cck);
+ pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_cck:\t\t %u\n",
+ data->last_fa_cnt_cck);
+ pos += scnprintf(buf + pos, bufsz - pos, "nrg_curr_state:\t\t\t %u\n",
+ data->nrg_curr_state);
+ pos += scnprintf(buf + pos, bufsz - pos, "nrg_prev_state:\t\t\t %u\n",
+ data->nrg_prev_state);
+ pos += scnprintf(buf + pos, bufsz - pos, "nrg_value:\t\t\t");
+ for (cnt = 0; cnt < 10; cnt++) {
+ pos += scnprintf(buf + pos, bufsz - pos, " %u",
+ data->nrg_value[cnt]);
+ }
+ pos += scnprintf(buf + pos, bufsz - pos, "\n");
+ pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_rssi:\t\t");
+ for (cnt = 0; cnt < NRG_NUM_PREV_STAT_L; cnt++) {
+ pos += scnprintf(buf + pos, bufsz - pos, " %u",
+ data->nrg_silence_rssi[cnt]);
+ }
+ pos += scnprintf(buf + pos, bufsz - pos, "\n");
+ pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_ref:\t\t %u\n",
+ data->nrg_silence_ref);
+ pos += scnprintf(buf + pos, bufsz - pos, "nrg_energy_idx:\t\t\t %u\n",
+ data->nrg_energy_idx);
+ pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_idx:\t\t %u\n",
+ data->nrg_silence_idx);
+ pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_cck:\t\t\t %u\n",
+ data->nrg_th_cck);
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "nrg_auto_corr_silence_diff:\t %u\n",
+ data->nrg_auto_corr_silence_diff);
+ pos += scnprintf(buf + pos, bufsz - pos, "num_in_cck_no_fa:\t\t %u\n",
+ data->num_in_cck_no_fa);
+ pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_ofdm:\t\t\t %u\n",
+ data->nrg_th_ofdm);
+
+ ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+ kfree(buf);
+ return ret;
+}
+
+
+static ssize_t iwl_legacy_dbgfs_chain_noise_read(struct file *file,
+ char __user *user_buf,
+ size_t count, loff_t *ppos) {
+
+ struct iwl_priv *priv = file->private_data;
+ int pos = 0;
+ int cnt = 0;
+ char *buf;
+ int bufsz = sizeof(struct iwl_chain_noise_data) * 4 + 100;
+ ssize_t ret;
+ struct iwl_chain_noise_data *data;
+
+ data = &priv->chain_noise_data;
+ buf = kzalloc(bufsz, GFP_KERNEL);
+ if (!buf) {
+ IWL_ERR(priv, "Can not allocate Buffer\n");
+ return -ENOMEM;
+ }
+
+ pos += scnprintf(buf + pos, bufsz - pos, "active_chains:\t\t\t %u\n",
+ data->active_chains);
+ pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_a:\t\t\t %u\n",
+ data->chain_noise_a);
+ pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_b:\t\t\t %u\n",
+ data->chain_noise_b);
+ pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_c:\t\t\t %u\n",
+ data->chain_noise_c);
+ pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_a:\t\t\t %u\n",
+ data->chain_signal_a);
+ pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_b:\t\t\t %u\n",
+ data->chain_signal_b);
+ pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_c:\t\t\t %u\n",
+ data->chain_signal_c);
+ pos += scnprintf(buf + pos, bufsz - pos, "beacon_count:\t\t\t %u\n",
+ data->beacon_count);
+
+ pos += scnprintf(buf + pos, bufsz - pos, "disconn_array:\t\t\t");
+ for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
+ pos += scnprintf(buf + pos, bufsz - pos, " %u",
+ data->disconn_array[cnt]);
+ }
+ pos += scnprintf(buf + pos, bufsz - pos, "\n");
+ pos += scnprintf(buf + pos, bufsz - pos, "delta_gain_code:\t\t");
+ for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
+ pos += scnprintf(buf + pos, bufsz - pos, " %u",
+ data->delta_gain_code[cnt]);
+ }
+ pos += scnprintf(buf + pos, bufsz - pos, "\n");
+ pos += scnprintf(buf + pos, bufsz - pos, "radio_write:\t\t\t %u\n",
+ data->radio_write);
+ pos += scnprintf(buf + pos, bufsz - pos, "state:\t\t\t\t %u\n",
+ data->state);
+
+ ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+ kfree(buf);
+ return ret;
+}
+
+static ssize_t iwl_legacy_dbgfs_power_save_status_read(struct file *file,
+ char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct iwl_priv *priv = file->private_data;
+ char buf[60];
+ int pos = 0;
+ const size_t bufsz = sizeof(buf);
+ u32 pwrsave_status;
+
+ pwrsave_status = iwl_read32(priv, CSR_GP_CNTRL) &
+ CSR_GP_REG_POWER_SAVE_STATUS_MSK;
+
+ pos += scnprintf(buf + pos, bufsz - pos, "Power Save Status: ");
+ pos += scnprintf(buf + pos, bufsz - pos, "%s\n",
+ (pwrsave_status == CSR_GP_REG_NO_POWER_SAVE) ? "none" :
+ (pwrsave_status == CSR_GP_REG_MAC_POWER_SAVE) ? "MAC" :
+ (pwrsave_status == CSR_GP_REG_PHY_POWER_SAVE) ? "PHY" :
+ "error");
+
+ return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+}
+
+static ssize_t iwl_legacy_dbgfs_clear_ucode_statistics_write(struct file *file,
+ const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct iwl_priv *priv = file->private_data;
+ char buf[8];
+ int buf_size;
+ int clear;
+
+ memset(buf, 0, sizeof(buf));
+ buf_size = min(count, sizeof(buf) - 1);
+ if (copy_from_user(buf, user_buf, buf_size))
+ return -EFAULT;
+ if (sscanf(buf, "%d", &clear) != 1)
+ return -EFAULT;
+
+ /* make request to uCode to retrieve statistics information */
+ mutex_lock(&priv->mutex);
+ iwl_legacy_send_statistics_request(priv, CMD_SYNC, true);
+ mutex_unlock(&priv->mutex);
+
+ return count;
+}
+
+static ssize_t iwl_legacy_dbgfs_ucode_tracing_read(struct file *file,
+ char __user *user_buf,
+ size_t count, loff_t *ppos) {
+
+ struct iwl_priv *priv = file->private_data;
+ int pos = 0;
+ char buf[128];
+ const size_t bufsz = sizeof(buf);
+
+ pos += scnprintf(buf + pos, bufsz - pos, "ucode trace timer is %s\n",
+ priv->event_log.ucode_trace ? "On" : "Off");
+ pos += scnprintf(buf + pos, bufsz - pos, "non_wraps_count:\t\t %u\n",
+ priv->event_log.non_wraps_count);
+ pos += scnprintf(buf + pos, bufsz - pos, "wraps_once_count:\t\t %u\n",
+ priv->event_log.wraps_once_count);
+ pos += scnprintf(buf + pos, bufsz - pos, "wraps_more_count:\t\t %u\n",
+ priv->event_log.wraps_more_count);
+
+ return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+}
+
+static ssize_t iwl_legacy_dbgfs_ucode_tracing_write(struct file *file,
+ const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct iwl_priv *priv = file->private_data;
+ char buf[8];
+ int buf_size;
+ int trace;
+
+ memset(buf, 0, sizeof(buf));
+ buf_size = min(count, sizeof(buf) - 1);
+ if (copy_from_user(buf, user_buf, buf_size))
+ return -EFAULT;
+ if (sscanf(buf, "%d", &trace) != 1)
+ return -EFAULT;
+
+ if (trace) {
+ priv->event_log.ucode_trace = true;
+ /* schedule the ucode timer to occur in UCODE_TRACE_PERIOD */
+ mod_timer(&priv->ucode_trace,
+ jiffies + msecs_to_jiffies(UCODE_TRACE_PERIOD));
+ } else {
+ priv->event_log.ucode_trace = false;
+ del_timer_sync(&priv->ucode_trace);
+ }
+
+ return count;
+}
+
+static ssize_t iwl_legacy_dbgfs_rxon_flags_read(struct file *file,
+ char __user *user_buf,
+ size_t count, loff_t *ppos) {
+
+ struct iwl_priv *priv = file->private_data;
+ int len = 0;
+ char buf[20];
+
+ len = sprintf(buf, "0x%04X\n",
+ le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.flags));
+ return simple_read_from_buffer(user_buf, count, ppos, buf, len);
+}
+
+static ssize_t iwl_legacy_dbgfs_rxon_filter_flags_read(struct file *file,
+ char __user *user_buf,
+ size_t count, loff_t *ppos) {
+
+ struct iwl_priv *priv = file->private_data;
+ int len = 0;
+ char buf[20];
+
+ len = sprintf(buf, "0x%04X\n",
+ le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.filter_flags));
+ return simple_read_from_buffer(user_buf, count, ppos, buf, len);
+}
+
+static ssize_t iwl_legacy_dbgfs_fh_reg_read(struct file *file,
+ char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct iwl_priv *priv = file->private_data;
+ char *buf;
+ int pos = 0;
+ ssize_t ret = -EFAULT;
+
+ if (priv->cfg->ops->lib->dump_fh) {
+ ret = pos = priv->cfg->ops->lib->dump_fh(priv, &buf, true);
+ if (buf) {
+ ret = simple_read_from_buffer(user_buf,
+ count, ppos, buf, pos);
+ kfree(buf);
+ }
+ }
+
+ return ret;
+}
+
+static ssize_t iwl_legacy_dbgfs_missed_beacon_read(struct file *file,
+ char __user *user_buf,
+ size_t count, loff_t *ppos) {
+
+ struct iwl_priv *priv = file->private_data;
+ int pos = 0;
+ char buf[12];
+ const size_t bufsz = sizeof(buf);
+
+ pos += scnprintf(buf + pos, bufsz - pos, "%d\n",
+ priv->missed_beacon_threshold);
+
+ return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+}
+
+static ssize_t iwl_legacy_dbgfs_missed_beacon_write(struct file *file,
+ const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct iwl_priv *priv = file->private_data;
+ char buf[8];
+ int buf_size;
+ int missed;
+
+ memset(buf, 0, sizeof(buf));
+ buf_size = min(count, sizeof(buf) - 1);
+ if (copy_from_user(buf, user_buf, buf_size))
+ return -EFAULT;
+ if (sscanf(buf, "%d", &missed) != 1)
+ return -EINVAL;
+
+ if (missed < IWL_MISSED_BEACON_THRESHOLD_MIN ||
+ missed > IWL_MISSED_BEACON_THRESHOLD_MAX)
+ priv->missed_beacon_threshold =
+ IWL_MISSED_BEACON_THRESHOLD_DEF;
+ else
+ priv->missed_beacon_threshold = missed;
+
+ return count;
+}
+
+static ssize_t iwl_legacy_dbgfs_plcp_delta_read(struct file *file,
+ char __user *user_buf,
+ size_t count, loff_t *ppos) {
+
+ struct iwl_priv *priv = file->private_data;
+ int pos = 0;
+ char buf[12];
+ const size_t bufsz = sizeof(buf);
+
+ pos += scnprintf(buf + pos, bufsz - pos, "%u\n",
+ priv->cfg->base_params->plcp_delta_threshold);
+
+ return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+}
+
+static ssize_t iwl_legacy_dbgfs_plcp_delta_write(struct file *file,
+ const char __user *user_buf,
+ size_t count, loff_t *ppos) {
+
+ struct iwl_priv *priv = file->private_data;
+ char buf[8];
+ int buf_size;
+ int plcp;
+
+ memset(buf, 0, sizeof(buf));
+ buf_size = min(count, sizeof(buf) - 1);
+ if (copy_from_user(buf, user_buf, buf_size))
+ return -EFAULT;
+ if (sscanf(buf, "%d", &plcp) != 1)
+ return -EINVAL;
+ if ((plcp < IWL_MAX_PLCP_ERR_THRESHOLD_MIN) ||
+ (plcp > IWL_MAX_PLCP_ERR_THRESHOLD_MAX))
+ priv->cfg->base_params->plcp_delta_threshold =
+ IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE;
+ else
+ priv->cfg->base_params->plcp_delta_threshold = plcp;
+ return count;
+}
+
+static ssize_t iwl_legacy_dbgfs_force_reset_read(struct file *file,
+ char __user *user_buf,
+ size_t count, loff_t *ppos) {
+
+ struct iwl_priv *priv = file->private_data;
+ int i, pos = 0;
+ char buf[300];
+ const size_t bufsz = sizeof(buf);
+ struct iwl_force_reset *force_reset;
+
+ for (i = 0; i < IWL_MAX_FORCE_RESET; i++) {
+ force_reset = &priv->force_reset[i];
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "Force reset method %d\n", i);
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "\tnumber of reset request: %d\n",
+ force_reset->reset_request_count);
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "\tnumber of reset request success: %d\n",
+ force_reset->reset_success_count);
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "\tnumber of reset request reject: %d\n",
+ force_reset->reset_reject_count);
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "\treset duration: %lu\n",
+ force_reset->reset_duration);
+ }
+ return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+}
+
+static ssize_t iwl_legacy_dbgfs_force_reset_write(struct file *file,
+ const char __user *user_buf,
+ size_t count, loff_t *ppos) {
+
+ struct iwl_priv *priv = file->private_data;
+ char buf[8];
+ int buf_size;
+ int reset, ret;
+
+ memset(buf, 0, sizeof(buf));
+ buf_size = min(count, sizeof(buf) - 1);
+ if (copy_from_user(buf, user_buf, buf_size))
+ return -EFAULT;
+ if (sscanf(buf, "%d", &reset) != 1)
+ return -EINVAL;
+ switch (reset) {
+ case IWL_RF_RESET:
+ case IWL_FW_RESET:
+ ret = iwl_legacy_force_reset(priv, reset, true);
+ break;
+ default:
+ return -EINVAL;
+ }
+ return ret ? ret : count;
+}
+
+static ssize_t iwl_legacy_dbgfs_wd_timeout_write(struct file *file,
+ const char __user *user_buf,
+ size_t count, loff_t *ppos) {
+
+ struct iwl_priv *priv = file->private_data;
+ char buf[8];
+ int buf_size;
+ int timeout;
+
+ memset(buf, 0, sizeof(buf));
+ buf_size = min(count, sizeof(buf) - 1);
+ if (copy_from_user(buf, user_buf, buf_size))
+ return -EFAULT;
+ if (sscanf(buf, "%d", &timeout) != 1)
+ return -EINVAL;
+ if (timeout < 0 || timeout > IWL_MAX_WD_TIMEOUT)
+ timeout = IWL_DEF_WD_TIMEOUT;
+
+ priv->cfg->base_params->wd_timeout = timeout;
+ iwl_legacy_setup_watchdog(priv);
+ return count;
+}
+
+DEBUGFS_READ_FILE_OPS(rx_statistics);
+DEBUGFS_READ_FILE_OPS(tx_statistics);
+DEBUGFS_READ_WRITE_FILE_OPS(traffic_log);
+DEBUGFS_READ_FILE_OPS(rx_queue);
+DEBUGFS_READ_FILE_OPS(tx_queue);
+DEBUGFS_READ_FILE_OPS(ucode_rx_stats);
+DEBUGFS_READ_FILE_OPS(ucode_tx_stats);
+DEBUGFS_READ_FILE_OPS(ucode_general_stats);
+DEBUGFS_READ_FILE_OPS(sensitivity);
+DEBUGFS_READ_FILE_OPS(chain_noise);
+DEBUGFS_READ_FILE_OPS(power_save_status);
+DEBUGFS_WRITE_FILE_OPS(clear_ucode_statistics);
+DEBUGFS_WRITE_FILE_OPS(clear_traffic_statistics);
+DEBUGFS_READ_WRITE_FILE_OPS(ucode_tracing);
+DEBUGFS_READ_FILE_OPS(fh_reg);
+DEBUGFS_READ_WRITE_FILE_OPS(missed_beacon);
+DEBUGFS_READ_WRITE_FILE_OPS(plcp_delta);
+DEBUGFS_READ_WRITE_FILE_OPS(force_reset);
+DEBUGFS_READ_FILE_OPS(rxon_flags);
+DEBUGFS_READ_FILE_OPS(rxon_filter_flags);
+DEBUGFS_WRITE_FILE_OPS(wd_timeout);
+
+/*
+ * Create the debugfs files and directories
+ *
+ */
+int iwl_legacy_dbgfs_register(struct iwl_priv *priv, const char *name)
+{
+ struct dentry *phyd = priv->hw->wiphy->debugfsdir;
+ struct dentry *dir_drv, *dir_data, *dir_rf, *dir_debug;
+
+ dir_drv = debugfs_create_dir(name, phyd);
+ if (!dir_drv)
+ return -ENOMEM;
+
+ priv->debugfs_dir = dir_drv;
+
+ dir_data = debugfs_create_dir("data", dir_drv);
+ if (!dir_data)
+ goto err;
+ dir_rf = debugfs_create_dir("rf", dir_drv);
+ if (!dir_rf)
+ goto err;
+ dir_debug = debugfs_create_dir("debug", dir_drv);
+ if (!dir_debug)
+ goto err;
+
+ DEBUGFS_ADD_FILE(nvm, dir_data, S_IRUSR);
+ DEBUGFS_ADD_FILE(sram, dir_data, S_IWUSR | S_IRUSR);
+ DEBUGFS_ADD_FILE(log_event, dir_data, S_IWUSR | S_IRUSR);
+ DEBUGFS_ADD_FILE(stations, dir_data, S_IRUSR);
+ DEBUGFS_ADD_FILE(channels, dir_data, S_IRUSR);
+ DEBUGFS_ADD_FILE(status, dir_data, S_IRUSR);
+ DEBUGFS_ADD_FILE(interrupt, dir_data, S_IWUSR | S_IRUSR);
+ DEBUGFS_ADD_FILE(qos, dir_data, S_IRUSR);
+ DEBUGFS_ADD_FILE(disable_ht40, dir_data, S_IWUSR | S_IRUSR);
+ DEBUGFS_ADD_FILE(rx_statistics, dir_debug, S_IRUSR);
+ DEBUGFS_ADD_FILE(tx_statistics, dir_debug, S_IRUSR);
+ DEBUGFS_ADD_FILE(traffic_log, dir_debug, S_IWUSR | S_IRUSR);
+ DEBUGFS_ADD_FILE(rx_queue, dir_debug, S_IRUSR);
+ DEBUGFS_ADD_FILE(tx_queue, dir_debug, S_IRUSR);
+ DEBUGFS_ADD_FILE(power_save_status, dir_debug, S_IRUSR);
+ DEBUGFS_ADD_FILE(clear_ucode_statistics, dir_debug, S_IWUSR);
+ DEBUGFS_ADD_FILE(clear_traffic_statistics, dir_debug, S_IWUSR);
+ DEBUGFS_ADD_FILE(fh_reg, dir_debug, S_IRUSR);
+ DEBUGFS_ADD_FILE(missed_beacon, dir_debug, S_IWUSR);
+ DEBUGFS_ADD_FILE(plcp_delta, dir_debug, S_IWUSR | S_IRUSR);
+ DEBUGFS_ADD_FILE(force_reset, dir_debug, S_IWUSR | S_IRUSR);
+ DEBUGFS_ADD_FILE(ucode_rx_stats, dir_debug, S_IRUSR);
+ DEBUGFS_ADD_FILE(ucode_tx_stats, dir_debug, S_IRUSR);
+ DEBUGFS_ADD_FILE(ucode_general_stats, dir_debug, S_IRUSR);
+
+ if (priv->cfg->base_params->sensitivity_calib_by_driver)
+ DEBUGFS_ADD_FILE(sensitivity, dir_debug, S_IRUSR);
+ if (priv->cfg->base_params->chain_noise_calib_by_driver)
+ DEBUGFS_ADD_FILE(chain_noise, dir_debug, S_IRUSR);
+ if (priv->cfg->base_params->ucode_tracing)
+ DEBUGFS_ADD_FILE(ucode_tracing, dir_debug, S_IWUSR | S_IRUSR);
+ DEBUGFS_ADD_FILE(rxon_flags, dir_debug, S_IWUSR);
+ DEBUGFS_ADD_FILE(rxon_filter_flags, dir_debug, S_IWUSR);
+ DEBUGFS_ADD_FILE(wd_timeout, dir_debug, S_IWUSR);
+ if (priv->cfg->base_params->sensitivity_calib_by_driver)
+ DEBUGFS_ADD_BOOL(disable_sensitivity, dir_rf,
+ &priv->disable_sens_cal);
+ if (priv->cfg->base_params->chain_noise_calib_by_driver)
+ DEBUGFS_ADD_BOOL(disable_chain_noise, dir_rf,
+ &priv->disable_chain_noise_cal);
+ DEBUGFS_ADD_BOOL(disable_tx_power, dir_rf,
+ &priv->disable_tx_power_cal);
+ return 0;
+
+err:
+ IWL_ERR(priv, "Can't create the debugfs directory\n");
+ iwl_legacy_dbgfs_unregister(priv);
+ return -ENOMEM;
+}
+EXPORT_SYMBOL(iwl_legacy_dbgfs_register);
+
+/**
+ * Remove the debugfs files and directories
+ *
+ */
+void iwl_legacy_dbgfs_unregister(struct iwl_priv *priv)
+{
+ if (!priv->debugfs_dir)
+ return;
+
+ debugfs_remove_recursive(priv->debugfs_dir);
+ priv->debugfs_dir = NULL;
+}
+EXPORT_SYMBOL(iwl_legacy_dbgfs_unregister);