| /****************************************************************************** |
| * |
| * GPL LICENSE SUMMARY |
| * |
| * Copyright(c) 2008 - 2009 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/kernel.h> |
| #include <linux/module.h> |
| #include <linux/debugfs.h> |
| |
| #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_DIR(name, parent) do { \ |
| dbgfs->dir_##name = debugfs_create_dir(#name, parent); \ |
| if (!(dbgfs->dir_##name)) \ |
| goto err; \ |
| } while (0) |
| |
| #define DEBUGFS_ADD_FILE(name, parent) do { \ |
| dbgfs->dbgfs_##parent##_files.file_##name = \ |
| debugfs_create_file(#name, S_IWUSR | S_IRUSR, \ |
| dbgfs->dir_##parent, priv, \ |
| &iwl_dbgfs_##name##_ops); \ |
| if (!(dbgfs->dbgfs_##parent##_files.file_##name)) \ |
| goto err; \ |
| } while (0) |
| |
| #define DEBUGFS_ADD_BOOL(name, parent, ptr) do { \ |
| dbgfs->dbgfs_##parent##_files.file_##name = \ |
| debugfs_create_bool(#name, S_IWUSR | S_IRUSR, \ |
| dbgfs->dir_##parent, ptr); \ |
| if (IS_ERR(dbgfs->dbgfs_##parent##_files.file_##name) \ |
| || !dbgfs->dbgfs_##parent##_files.file_##name) \ |
| goto err; \ |
| } while (0) |
| |
| #define DEBUGFS_ADD_X32(name, parent, ptr) do { \ |
| dbgfs->dbgfs_##parent##_files.file_##name = \ |
| debugfs_create_x32(#name, S_IRUSR, dbgfs->dir_##parent, ptr); \ |
| if (IS_ERR(dbgfs->dbgfs_##parent##_files.file_##name) \ |
| || !dbgfs->dbgfs_##parent##_files.file_##name) \ |
| goto err; \ |
| } while (0) |
| |
| #define DEBUGFS_REMOVE(name) do { \ |
| debugfs_remove(name); \ |
| name = NULL; \ |
| } while (0); |
| |
| /* file operation */ |
| #define DEBUGFS_READ_FUNC(name) \ |
| static ssize_t iwl_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_dbgfs_##name##_write(struct file *file, \ |
| const char __user *user_buf, \ |
| size_t count, loff_t *ppos); |
| |
| |
| static int iwl_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_dbgfs_##name##_ops = { \ |
| .read = iwl_dbgfs_##name##_read, \ |
| .open = iwl_dbgfs_open_file_generic, \ |
| }; |
| |
| #define DEBUGFS_WRITE_FILE_OPS(name) \ |
| DEBUGFS_WRITE_FUNC(name); \ |
| static const struct file_operations iwl_dbgfs_##name##_ops = { \ |
| .write = iwl_dbgfs_##name##_write, \ |
| .open = iwl_dbgfs_open_file_generic, \ |
| }; |
| |
| |
| #define DEBUGFS_READ_WRITE_FILE_OPS(name) \ |
| DEBUGFS_READ_FUNC(name); \ |
| DEBUGFS_WRITE_FUNC(name); \ |
| static const struct file_operations iwl_dbgfs_##name##_ops = { \ |
| .write = iwl_dbgfs_##name##_write, \ |
| .read = iwl_dbgfs_##name##_read, \ |
| .open = iwl_dbgfs_open_file_generic, \ |
| }; |
| |
| |
| static ssize_t iwl_dbgfs_tx_statistics_read(struct file *file, |
| char __user *user_buf, |
| size_t count, loff_t *ppos) { |
| |
| struct iwl_priv *priv = (struct iwl_priv *)file->private_data; |
| char buf[256]; |
| int pos = 0; |
| const size_t bufsz = sizeof(buf); |
| |
| pos += scnprintf(buf + pos, bufsz - pos, "mgmt: %u\n", |
| priv->tx_stats[0].cnt); |
| pos += scnprintf(buf + pos, bufsz - pos, "ctrl: %u\n", |
| priv->tx_stats[1].cnt); |
| pos += scnprintf(buf + pos, bufsz - pos, "data: %u\n", |
| priv->tx_stats[2].cnt); |
| |
| return simple_read_from_buffer(user_buf, count, ppos, buf, pos); |
| } |
| |
| static ssize_t iwl_dbgfs_rx_statistics_read(struct file *file, |
| char __user *user_buf, |
| size_t count, loff_t *ppos) { |
| |
| struct iwl_priv *priv = (struct iwl_priv *)file->private_data; |
| char buf[256]; |
| int pos = 0; |
| const size_t bufsz = sizeof(buf); |
| |
| pos += scnprintf(buf + pos, bufsz - pos, "mgmt: %u\n", |
| priv->rx_stats[0].cnt); |
| pos += scnprintf(buf + pos, bufsz - pos, "ctrl: %u\n", |
| priv->rx_stats[1].cnt); |
| pos += scnprintf(buf + pos, bufsz - pos, "data: %u\n", |
| priv->rx_stats[2].cnt); |
| |
| return simple_read_from_buffer(user_buf, count, ppos, buf, pos); |
| } |
| |
| #define BYTE1_MASK 0x000000ff; |
| #define BYTE2_MASK 0x0000ffff; |
| #define BYTE3_MASK 0x00ffffff; |
| static ssize_t iwl_dbgfs_sram_read(struct file *file, |
| char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| u32 val; |
| char buf[1024]; |
| ssize_t ret; |
| int i; |
| int pos = 0; |
| struct iwl_priv *priv = (struct iwl_priv *)file->private_data; |
| const size_t bufsz = sizeof(buf); |
| |
| for (i = priv->dbgfs->sram_len; i > 0; i -= 4) { |
| val = iwl_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; |
| } |
| } |
| 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); |
| return ret; |
| } |
| |
| static ssize_t iwl_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_dbgfs_stations_read(struct file *file, char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct iwl_priv *priv = (struct iwl_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) { |
| pos += scnprintf(buf + pos, bufsz - pos, |
| "station %d:\ngeneral data:\n", i+1); |
| pos += scnprintf(buf + pos, bufsz - pos, "id: %u\n", |
| station->sta.sta.sta_id); |
| pos += scnprintf(buf + pos, bufsz - pos, "mode: %u\n", |
| station->sta.mode); |
| pos += scnprintf(buf + pos, bufsz - pos, |
| "flags: 0x%x\n", |
| station->sta.station_flags_msk); |
| pos += scnprintf(buf + pos, bufsz - pos, |
| "ps_status: %u\n", station->ps_status); |
| pos += scnprintf(buf + pos, bufsz - pos, "tid data:\n"); |
| pos += scnprintf(buf + pos, bufsz - pos, |
| "seq_num\t\ttxq_id"); |
| pos += scnprintf(buf + pos, bufsz - pos, |
| "\tframe_count\twait_for_ba\t"); |
| pos += scnprintf(buf + pos, bufsz - pos, |
| "start_idx\tbitmap0\t"); |
| pos += scnprintf(buf + pos, bufsz - pos, |
| "bitmap1\trate_n_flags"); |
| pos += scnprintf(buf + pos, bufsz - pos, "\n"); |
| |
| for (j = 0; j < MAX_TID_COUNT; j++) { |
| pos += scnprintf(buf + pos, bufsz - pos, |
| "[%d]:\t\t%u", j, |
| station->tid[j].seq_number); |
| pos += scnprintf(buf + pos, bufsz - pos, |
| "\t%u\t\t%u\t\t%u\t\t", |
| station->tid[j].agg.txq_id, |
| station->tid[j].agg.frame_count, |
| station->tid[j].agg.wait_for_ba); |
| pos += scnprintf(buf + pos, bufsz - pos, |
| "%u\t%llu\t%u", |
| station->tid[j].agg.start_idx, |
| (unsigned long long)station->tid[j].agg.bitmap, |
| station->tid[j].agg.rate_n_flags); |
| 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_dbgfs_nvm_read(struct file *file, |
| char __user *user_buf, |
| size_t count, |
| loff_t *ppos) |
| { |
| ssize_t ret; |
| struct iwl_priv *priv = (struct iwl_priv *)file->private_data; |
| int pos = 0, ofs = 0, buf_size = 0; |
| const u8 *ptr; |
| char *buf; |
| size_t eeprom_len = priv->cfg->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; |
| } |
| |
| /* 4 characters for byte 0xYY */ |
| buf = kzalloc(buf_size, GFP_KERNEL); |
| if (!buf) { |
| IWL_ERR(priv, "Can not allocate Buffer\n"); |
| return -ENOMEM; |
| } |
| |
| ptr = priv->eeprom; |
| if (!ptr) { |
| IWL_ERR(priv, "Invalid EEPROM/OTP memory\n"); |
| return -ENOMEM; |
| } |
| pos += scnprintf(buf + pos, buf_size - pos, "NVM Type: %s\n", |
| (priv->nvm_device_type == NVM_DEVICE_TYPE_OTP) |
| ? "OTP" : "EEPROM"); |
| 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); |
| 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_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) |
| iwl_dump_nic_event_log(priv); |
| |
| return count; |
| } |
| |
| |
| |
| static ssize_t iwl_dbgfs_channels_read(struct file *file, char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct iwl_priv *priv = (struct iwl_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", |
| ieee80211_frequency_to_channel( |
| channels[i].center_freq), |
| 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", |
| ieee80211_frequency_to_channel( |
| channels[i].center_freq), |
| 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_dbgfs_status_read(struct file *file, |
| char __user *user_buf, |
| size_t count, loff_t *ppos) { |
| |
| struct iwl_priv *priv = (struct iwl_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_HCMD_SYNC_ACTIVE: %d\n", |
| test_bit(STATUS_HCMD_SYNC_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_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)); |
| pos += scnprintf(buf + pos, bufsz - pos, "STATUS_MODE_PENDING:\t %d\n", |
| test_bit(STATUS_MODE_PENDING, &priv->status)); |
| return simple_read_from_buffer(user_buf, count, ppos, buf, pos); |
| } |
| |
| static ssize_t iwl_dbgfs_interrupt_read(struct file *file, |
| char __user *user_buf, |
| size_t count, loff_t *ppos) { |
| |
| struct iwl_priv *priv = (struct iwl_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 > 0) { |
| pos += scnprintf(buf + pos, bufsz - pos, |
| "\tLast Restarting Code: 0x%X\n", |
| priv->isr_stats.sw_err); |
| } |
| #ifdef CONFIG_IWLWIFI_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", |
| 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_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_clear_isr_stats(priv); |
| |
| return count; |
| } |
| |
| static ssize_t iwl_dbgfs_qos_read(struct file *file, char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct iwl_priv *priv = (struct iwl_priv *)file->private_data; |
| int pos = 0, i; |
| char buf[256]; |
| const size_t bufsz = sizeof(buf); |
| ssize_t ret; |
| |
| 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, |
| priv->qos_data.def_qos_parm.ac[i].cw_min, |
| priv->qos_data.def_qos_parm.ac[i].cw_max, |
| priv->qos_data.def_qos_parm.ac[i].aifsn, |
| priv->qos_data.def_qos_parm.ac[i].edca_txop); |
| } |
| ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); |
| return ret; |
| } |
| |
| #ifdef CONFIG_IWLWIFI_LEDS |
| static ssize_t iwl_dbgfs_led_read(struct file *file, char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct iwl_priv *priv = (struct iwl_priv *)file->private_data; |
| int pos = 0; |
| char buf[256]; |
| const size_t bufsz = sizeof(buf); |
| ssize_t ret; |
| |
| pos += scnprintf(buf + pos, bufsz - pos, |
| "allow blinking: %s\n", |
| (priv->allow_blinking) ? "True" : "False"); |
| if (priv->allow_blinking) { |
| pos += scnprintf(buf + pos, bufsz - pos, |
| "Led blinking rate: %u\n", |
| priv->last_blink_rate); |
| pos += scnprintf(buf + pos, bufsz - pos, |
| "Last blink time: %lu\n", |
| priv->last_blink_time); |
| } |
| |
| ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); |
| return ret; |
| } |
| #endif |
| |
| static ssize_t iwl_dbgfs_thermal_throttling_read(struct file *file, |
| char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct iwl_priv *priv = (struct iwl_priv *)file->private_data; |
| struct iwl_tt_mgmt *tt = &priv->power_data.tt; |
| struct iwl_tt_restriction *restriction; |
| char buf[100]; |
| int pos = 0; |
| const size_t bufsz = sizeof(buf); |
| ssize_t ret; |
| |
| pos += scnprintf(buf + pos, bufsz - pos, |
| "Thermal Throttling Mode: %s\n", |
| (priv->power_data.adv_tt) |
| ? "Advance" : "Legacy"); |
| pos += scnprintf(buf + pos, bufsz - pos, |
| "Thermal Throttling State: %d\n", |
| tt->state); |
| if (priv->power_data.adv_tt) { |
| restriction = tt->restriction + tt->state; |
| pos += scnprintf(buf + pos, bufsz - pos, |
| "Tx mode: %d\n", |
| restriction->tx_stream); |
| pos += scnprintf(buf + pos, bufsz - pos, |
| "Rx mode: %d\n", |
| restriction->rx_stream); |
| pos += scnprintf(buf + pos, bufsz - pos, |
| "HT mode: %d\n", |
| restriction->is_ht); |
| } |
| ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); |
| return ret; |
| } |
| |
| DEBUGFS_READ_WRITE_FILE_OPS(sram); |
| DEBUGFS_WRITE_FILE_OPS(log_event); |
| DEBUGFS_READ_FILE_OPS(nvm); |
| DEBUGFS_READ_FILE_OPS(stations); |
| DEBUGFS_READ_FILE_OPS(rx_statistics); |
| DEBUGFS_READ_FILE_OPS(tx_statistics); |
| DEBUGFS_READ_FILE_OPS(channels); |
| DEBUGFS_READ_FILE_OPS(status); |
| DEBUGFS_READ_WRITE_FILE_OPS(interrupt); |
| DEBUGFS_READ_FILE_OPS(qos); |
| #ifdef CONFIG_IWLWIFI_LEDS |
| DEBUGFS_READ_FILE_OPS(led); |
| #endif |
| DEBUGFS_READ_FILE_OPS(thermal_throttling); |
| |
| /* |
| * Create the debugfs files and directories |
| * |
| */ |
| int iwl_dbgfs_register(struct iwl_priv *priv, const char *name) |
| { |
| struct iwl_debugfs *dbgfs; |
| struct dentry *phyd = priv->hw->wiphy->debugfsdir; |
| int ret = 0; |
| |
| dbgfs = kzalloc(sizeof(struct iwl_debugfs), GFP_KERNEL); |
| if (!dbgfs) { |
| ret = -ENOMEM; |
| goto err; |
| } |
| |
| priv->dbgfs = dbgfs; |
| dbgfs->name = name; |
| dbgfs->dir_drv = debugfs_create_dir(name, phyd); |
| if (!dbgfs->dir_drv || IS_ERR(dbgfs->dir_drv)) { |
| ret = -ENOENT; |
| goto err; |
| } |
| |
| DEBUGFS_ADD_DIR(data, dbgfs->dir_drv); |
| DEBUGFS_ADD_DIR(rf, dbgfs->dir_drv); |
| DEBUGFS_ADD_FILE(nvm, data); |
| DEBUGFS_ADD_FILE(sram, data); |
| DEBUGFS_ADD_FILE(log_event, data); |
| DEBUGFS_ADD_FILE(stations, data); |
| DEBUGFS_ADD_FILE(rx_statistics, data); |
| DEBUGFS_ADD_FILE(tx_statistics, data); |
| DEBUGFS_ADD_FILE(channels, data); |
| DEBUGFS_ADD_FILE(status, data); |
| DEBUGFS_ADD_FILE(interrupt, data); |
| DEBUGFS_ADD_FILE(qos, data); |
| #ifdef CONFIG_IWLWIFI_LEDS |
| DEBUGFS_ADD_FILE(led, data); |
| #endif |
| DEBUGFS_ADD_FILE(thermal_throttling, data); |
| DEBUGFS_ADD_BOOL(disable_sensitivity, rf, &priv->disable_sens_cal); |
| DEBUGFS_ADD_BOOL(disable_chain_noise, rf, |
| &priv->disable_chain_noise_cal); |
| if (((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_4965) || |
| ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_3945)) |
| DEBUGFS_ADD_BOOL(disable_tx_power, rf, |
| &priv->disable_tx_power_cal); |
| return 0; |
| |
| err: |
| IWL_ERR(priv, "Can't open the debugfs directory\n"); |
| iwl_dbgfs_unregister(priv); |
| return ret; |
| } |
| EXPORT_SYMBOL(iwl_dbgfs_register); |
| |
| /** |
| * Remove the debugfs files and directories |
| * |
| */ |
| void iwl_dbgfs_unregister(struct iwl_priv *priv) |
| { |
| if (!priv->dbgfs) |
| return; |
| |
| DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_nvm); |
| DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_rx_statistics); |
| DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_tx_statistics); |
| DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_sram); |
| DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_log_event); |
| DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_stations); |
| DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_channels); |
| DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_status); |
| DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_interrupt); |
| DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_qos); |
| #ifdef CONFIG_IWLWIFI_LEDS |
| DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_led); |
| #endif |
| DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_thermal_throttling); |
| DEBUGFS_REMOVE(priv->dbgfs->dir_data); |
| DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_sensitivity); |
| DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_chain_noise); |
| if (((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_4965) || |
| ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_3945)) |
| DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_tx_power); |
| DEBUGFS_REMOVE(priv->dbgfs->dir_rf); |
| DEBUGFS_REMOVE(priv->dbgfs->dir_drv); |
| kfree(priv->dbgfs); |
| priv->dbgfs = NULL; |
| } |
| EXPORT_SYMBOL(iwl_dbgfs_unregister); |
| |
| |
| |