/****************************************************************************** * * 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 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 *****************************************************************************/ #include #include #include #include #include #include #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", 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 = 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; } 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); /* * 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); 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);