| /****************************************************************************** |
| * |
| * GPL LICENSE SUMMARY |
| * |
| * Copyright(c) 2008 - 2010 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/slab.h> |
| #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" |
| #include "iwl-calib.h" |
| |
| /* create and remove of files */ |
| #define DEBUGFS_ADD_FILE(name, parent, mode) do { \ |
| if (!debugfs_create_file(#name, mode, parent, priv, \ |
| &iwl_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_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 = 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", |
| 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", |
| 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_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_clear_traffic_stats(priv); |
| |
| return count; |
| } |
| |
| 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 = 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", |
| 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", |
| 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_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_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_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 = 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_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->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/OTP 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_eeprom_query16(priv, EEPROM_VERSION); |
| pos += scnprintf(buf + pos, buf_size - pos, "NVM Type: %s, " |
| "version: 0x%x\n", |
| (priv->nvm_device_type == NVM_DEVICE_TYPE_OTP) |
| ? "OTP" : "EEPROM", 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_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_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_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_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_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 > 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 = file->private_data; |
| int pos = 0, i; |
| char buf[256]; |
| const size_t bufsz = sizeof(buf); |
| |
| 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); |
| } |
| return simple_read_from_buffer(user_buf, count, ppos, buf, pos); |
| } |
| |
| static ssize_t iwl_dbgfs_led_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[256]; |
| const size_t bufsz = sizeof(buf); |
| |
| 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); |
| } |
| |
| return simple_read_from_buffer(user_buf, count, ppos, buf, pos); |
| } |
| |
| 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 = file->private_data; |
| struct iwl_tt_mgmt *tt = &priv->thermal_throttle; |
| struct iwl_tt_restriction *restriction; |
| char buf[100]; |
| int pos = 0; |
| const size_t bufsz = sizeof(buf); |
| |
| pos += scnprintf(buf + pos, bufsz - pos, |
| "Thermal Throttling Mode: %s\n", |
| tt->advanced_tt ? "Advance" : "Legacy"); |
| pos += scnprintf(buf + pos, bufsz - pos, |
| "Thermal Throttling State: %d\n", |
| tt->state); |
| if (tt->advanced_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); |
| } |
| return simple_read_from_buffer(user_buf, count, ppos, buf, pos); |
| } |
| |
| static ssize_t iwl_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_is_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_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); |
| } |
| |
| static ssize_t iwl_dbgfs_sleep_level_override_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 value; |
| |
| 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", &value) != 1) |
| return -EINVAL; |
| |
| /* |
| * Our users expect 0 to be "CAM", but 0 isn't actually |
| * valid here. However, let's not confuse them and present |
| * IWL_POWER_INDEX_1 as "1", not "0". |
| */ |
| if (value == 0) |
| return -EINVAL; |
| else if (value > 0) |
| value -= 1; |
| |
| if (value != -1 && (value < 0 || value >= IWL_POWER_NUM)) |
| return -EINVAL; |
| |
| if (!iwl_is_ready_rf(priv)) |
| return -EAGAIN; |
| |
| priv->power_data.debug_sleep_level_override = value; |
| |
| mutex_lock(&priv->mutex); |
| iwl_power_update_mode(priv, true); |
| mutex_unlock(&priv->mutex); |
| |
| return count; |
| } |
| |
| static ssize_t iwl_dbgfs_sleep_level_override_read(struct file *file, |
| char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct iwl_priv *priv = file->private_data; |
| char buf[10]; |
| int pos, value; |
| const size_t bufsz = sizeof(buf); |
| |
| /* see the write function */ |
| value = priv->power_data.debug_sleep_level_override; |
| if (value >= 0) |
| value += 1; |
| |
| pos = scnprintf(buf, bufsz, "%d\n", value); |
| return simple_read_from_buffer(user_buf, count, ppos, buf, pos); |
| } |
| |
| static ssize_t iwl_dbgfs_current_sleep_command_read(struct file *file, |
| char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct iwl_priv *priv = file->private_data; |
| char buf[200]; |
| int pos = 0, i; |
| const size_t bufsz = sizeof(buf); |
| struct iwl_powertable_cmd *cmd = &priv->power_data.sleep_cmd; |
| |
| pos += scnprintf(buf + pos, bufsz - pos, |
| "flags: %#.2x\n", le16_to_cpu(cmd->flags)); |
| pos += scnprintf(buf + pos, bufsz - pos, |
| "RX/TX timeout: %d/%d usec\n", |
| le32_to_cpu(cmd->rx_data_timeout), |
| le32_to_cpu(cmd->tx_data_timeout)); |
| for (i = 0; i < IWL_POWER_VEC_SIZE; i++) |
| pos += scnprintf(buf + pos, bufsz - pos, |
| "sleep_interval[%d]: %d\n", i, |
| le32_to_cpu(cmd->sleep_interval[i])); |
| |
| 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_FILE_OPS(led); |
| DEBUGFS_READ_FILE_OPS(thermal_throttling); |
| DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40); |
| DEBUGFS_READ_WRITE_FILE_OPS(sleep_level_override); |
| DEBUGFS_READ_FILE_OPS(current_sleep_command); |
| |
| static ssize_t iwl_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->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_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_reset_traffic_log(priv); |
| |
| return count; |
| } |
| |
| static ssize_t iwl_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->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 & 0x80 ? txq->swq_id & 3 : |
| txq->swq_id, |
| txq->swq_id & 0x80 ? (txq->swq_id >> 2) & |
| 0x1f : txq->swq_id); |
| 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_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_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_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_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_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_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_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_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_send_statistics_request(priv, CMD_SYNC, true); |
| mutex_unlock(&priv->mutex); |
| |
| return count; |
| } |
| |
| static ssize_t iwl_dbgfs_csr_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 csr; |
| |
| 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", &csr) != 1) |
| return -EFAULT; |
| |
| if (priv->cfg->ops->lib->dump_csr) |
| priv->cfg->ops->lib->dump_csr(priv); |
| |
| return count; |
| } |
| |
| static ssize_t iwl_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_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_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->active_rxon.flags)); |
| return simple_read_from_buffer(user_buf, count, ppos, buf, len); |
| } |
| |
| static ssize_t iwl_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->active_rxon.filter_flags)); |
| return simple_read_from_buffer(user_buf, count, ppos, buf, len); |
| } |
| |
| static ssize_t iwl_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_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_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_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->plcp_delta_threshold); |
| |
| return simple_read_from_buffer(user_buf, count, ppos, buf, pos); |
| } |
| |
| static ssize_t iwl_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->plcp_delta_threshold = |
| IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE; |
| else |
| priv->cfg->plcp_delta_threshold = plcp; |
| return count; |
| } |
| |
| static ssize_t iwl_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_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_force_reset(priv, reset, true); |
| break; |
| default: |
| return -EINVAL; |
| } |
| return ret ? ret : count; |
| } |
| |
| static ssize_t iwl_dbgfs_txfifo_flush_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 flush; |
| |
| 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", &flush) != 1) |
| return -EINVAL; |
| |
| if (iwl_is_rfkill(priv)) |
| return -EFAULT; |
| |
| priv->cfg->ops->lib->dev_txfifo_flush(priv, IWL_DROP_ALL); |
| |
| return count; |
| } |
| |
| static ssize_t iwl_dbgfs_ucode_bt_stats_read(struct file *file, |
| char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct iwl_priv *priv = (struct iwl_priv *)file->private_data; |
| |
| return priv->cfg->ops->lib->debugfs_ops.bt_stats_read(file, |
| user_buf, count, ppos); |
| } |
| |
| 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_WRITE_FILE_OPS(csr); |
| 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(txfifo_flush); |
| DEBUGFS_READ_FILE_OPS(ucode_bt_stats); |
| |
| /* |
| * Create the debugfs files and directories |
| * |
| */ |
| int iwl_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(led, dir_data, S_IRUSR); |
| if (!priv->cfg->broken_powersave) { |
| DEBUGFS_ADD_FILE(sleep_level_override, dir_data, |
| S_IWUSR | S_IRUSR); |
| DEBUGFS_ADD_FILE(current_sleep_command, dir_data, S_IRUSR); |
| } |
| DEBUGFS_ADD_FILE(thermal_throttling, 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(csr, 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->ops->lib->dev_txfifo_flush) |
| DEBUGFS_ADD_FILE(txfifo_flush, dir_debug, S_IWUSR); |
| |
| if (priv->cfg->sensitivity_calib_by_driver) |
| DEBUGFS_ADD_FILE(sensitivity, dir_debug, S_IRUSR); |
| if (priv->cfg->chain_noise_calib_by_driver) |
| DEBUGFS_ADD_FILE(chain_noise, dir_debug, S_IRUSR); |
| if (priv->cfg->ucode_tracing) |
| DEBUGFS_ADD_FILE(ucode_tracing, dir_debug, S_IWUSR | S_IRUSR); |
| if (priv->cfg->bt_statistics) |
| DEBUGFS_ADD_FILE(ucode_bt_stats, dir_debug, S_IRUSR); |
| DEBUGFS_ADD_FILE(rxon_flags, dir_debug, S_IWUSR); |
| DEBUGFS_ADD_FILE(rxon_filter_flags, dir_debug, S_IWUSR); |
| if (priv->cfg->sensitivity_calib_by_driver) |
| DEBUGFS_ADD_BOOL(disable_sensitivity, dir_rf, |
| &priv->disable_sens_cal); |
| if (priv->cfg->chain_noise_calib_by_driver) |
| DEBUGFS_ADD_BOOL(disable_chain_noise, dir_rf, |
| &priv->disable_chain_noise_cal); |
| if (priv->cfg->tx_power_by_driver) |
| 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_dbgfs_unregister(priv); |
| return -ENOMEM; |
| } |
| EXPORT_SYMBOL(iwl_dbgfs_register); |
| |
| /** |
| * Remove the debugfs files and directories |
| * |
| */ |
| void iwl_dbgfs_unregister(struct iwl_priv *priv) |
| { |
| if (!priv->debugfs_dir) |
| return; |
| |
| debugfs_remove_recursive(priv->debugfs_dir); |
| priv->debugfs_dir = NULL; |
| } |
| EXPORT_SYMBOL(iwl_dbgfs_unregister); |
| |
| |
| |