drivers/net/wireless/ath/ath9k/common-debug.c

   1 /*
   2  * Copyright (c) 2008-2011 Atheros Communications Inc.
   3  *
   4  * Permission to use, copy, modify, and/or distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16
  17 #include "common.h"
  18
  19 static ssize_t read_file_modal_eeprom(struct file *file, char __user *user_buf,
  20                                       size_t count, loff_t *ppos)
  21 {
  22         struct ath_hw *ah = file->private_data;
  23         u32 len = 0, size = 6000;
  24         char *buf;
  25         size_t retval;
  26
  27         buf = kzalloc(size, GFP_KERNEL);
  28         if (buf == NULL)
  29                 return -ENOMEM;
  30
  31         len = ah->eep_ops->dump_eeprom(ah, false, buf, len, size);
  32
  33         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
  34         kfree(buf);
  35
  36         return retval;
  37 }
  38
  39 static const struct file_operations fops_modal_eeprom = {
  40         .read = read_file_modal_eeprom,
  41         .open = simple_open,
  42         .owner = THIS_MODULE,
  43         .llseek = default_llseek,
  44 };
  45
  46
  47 void ath9k_cmn_debug_modal_eeprom(struct dentry *debugfs_phy,
  48                                   struct ath_hw *ah)
  49 {
  50         debugfs_create_file("modal_eeprom", 0400, debugfs_phy, ah,
  51                             &fops_modal_eeprom);
  52 }
  53 EXPORT_SYMBOL(ath9k_cmn_debug_modal_eeprom);
  54
  55 static ssize_t read_file_base_eeprom(struct file *file, char __user *user_buf,
  56                                      size_t count, loff_t *ppos)
  57 {
  58         struct ath_hw *ah = file->private_data;
  59         u32 len = 0, size = 1500;
  60         ssize_t retval = 0;
  61         char *buf;
  62
  63         buf = kzalloc(size, GFP_KERNEL);
  64         if (!buf)
  65                 return -ENOMEM;
  66
  67         len = ah->eep_ops->dump_eeprom(ah, true, buf, len, size);
  68
  69         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
  70         kfree(buf);
  71
  72         return retval;
  73 }
  74
  75 static const struct file_operations fops_base_eeprom = {
  76         .read = read_file_base_eeprom,
  77         .open = simple_open,
  78         .owner = THIS_MODULE,
  79         .llseek = default_llseek,
  80 };
  81
  82 void ath9k_cmn_debug_base_eeprom(struct dentry *debugfs_phy,
  83                                  struct ath_hw *ah)
  84 {
  85         debugfs_create_file("base_eeprom", 0400, debugfs_phy, ah,
  86                             &fops_base_eeprom);
  87 }
  88 EXPORT_SYMBOL(ath9k_cmn_debug_base_eeprom);
  89
  90 void ath9k_cmn_debug_stat_rx(struct ath_rx_stats *rxstats,
  91                              struct ath_rx_status *rs)
  92 {
  93 #define RX_PHY_ERR_INC(c) rxstats->phy_err_stats[c]++
  94 #define RX_CMN_STAT_INC(c) (rxstats->c++)
  95
  96         RX_CMN_STAT_INC(rx_pkts_all);
  97         rxstats->rx_bytes_all += rs->rs_datalen;
  98
  99         if (rs->rs_status & ATH9K_RXERR_CRC)
 100                 RX_CMN_STAT_INC(crc_err);
 101         if (rs->rs_status & ATH9K_RXERR_DECRYPT)
 102                 RX_CMN_STAT_INC(decrypt_crc_err);
 103         if (rs->rs_status & ATH9K_RXERR_MIC)
 104                 RX_CMN_STAT_INC(mic_err);
 105         if (rs->rs_status & ATH9K_RX_DELIM_CRC_PRE)
 106                 RX_CMN_STAT_INC(pre_delim_crc_err);
 107         if (rs->rs_status & ATH9K_RX_DELIM_CRC_POST)
 108                 RX_CMN_STAT_INC(post_delim_crc_err);
 109         if (rs->rs_status & ATH9K_RX_DECRYPT_BUSY)
 110                 RX_CMN_STAT_INC(decrypt_busy_err);
 111
 112         if (rs->rs_status & ATH9K_RXERR_PHY) {
 113                 RX_CMN_STAT_INC(phy_err);
 114                 if (rs->rs_phyerr < ATH9K_PHYERR_MAX)
 115                         RX_PHY_ERR_INC(rs->rs_phyerr);
 116         }
 117
 118 #undef RX_CMN_STAT_INC
 119 #undef RX_PHY_ERR_INC
 120 }
 121 EXPORT_SYMBOL(ath9k_cmn_debug_stat_rx);
 122
 123 static ssize_t read_file_recv(struct file *file, char __user *user_buf,
 124                               size_t count, loff_t *ppos)
 125 {
 126 #define RXS_ERR(s, e)                                   \
 127         do {                                            \
 128                 len += scnprintf(buf + len, size - len, \
 129                                  "%18s : %10u\n", s,    \
 130                                  rxstats->e);           \
 131         } while (0)
 132
 133         struct ath_rx_stats *rxstats = file->private_data;
 134         char *buf;
 135         unsigned int len = 0, size = 1600;
 136         ssize_t retval = 0;
 137
 138         buf = kzalloc(size, GFP_KERNEL);
 139         if (buf == NULL)
 140                 return -ENOMEM;
 141
 142         RXS_ERR("PKTS-ALL", rx_pkts_all);
 143         RXS_ERR("BYTES-ALL", rx_bytes_all);
 144         RXS_ERR("BEACONS", rx_beacons);
 145         RXS_ERR("FRAGS", rx_frags);
 146         RXS_ERR("SPECTRAL", rx_spectral);
 147         RXS_ERR("SPECTRAL SMPL GOOD", rx_spectral_sample_good);
 148         RXS_ERR("SPECTRAL SMPL ERR", rx_spectral_sample_err);
 149
 150         RXS_ERR("CRC ERR", crc_err);
 151         RXS_ERR("DECRYPT CRC ERR", decrypt_crc_err);
 152         RXS_ERR("PHY ERR", phy_err);
 153         RXS_ERR("MIC ERR", mic_err);
 154         RXS_ERR("PRE-DELIM CRC ERR", pre_delim_crc_err);
 155         RXS_ERR("POST-DELIM CRC ERR", post_delim_crc_err);
 156         RXS_ERR("DECRYPT BUSY ERR", decrypt_busy_err);
 157         RXS_ERR("LENGTH-ERR", rx_len_err);
 158         RXS_ERR("OOM-ERR", rx_oom_err);
 159         RXS_ERR("RATE-ERR", rx_rate_err);
 160         RXS_ERR("TOO-MANY-FRAGS", rx_too_many_frags_err);
 161
 162         if (len > size)
 163                 len = size;
 164
 165         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 166         kfree(buf);
 167
 168         return retval;
 169
 170 #undef RXS_ERR
 171 }
 172
 173 static const struct file_operations fops_recv = {
 174         .read = read_file_recv,
 175         .open = simple_open,
 176         .owner = THIS_MODULE,
 177         .llseek = default_llseek,
 178 };
 179
 180 void ath9k_cmn_debug_recv(struct dentry *debugfs_phy,
 181                           struct ath_rx_stats *rxstats)
 182 {
 183         debugfs_create_file("recv", 0400, debugfs_phy, rxstats, &fops_recv);
 184 }
 185 EXPORT_SYMBOL(ath9k_cmn_debug_recv);
 186
 187 static ssize_t read_file_phy_err(struct file *file, char __user *user_buf,
 188                                  size_t count, loff_t *ppos)
 189 {
 190 #define PHY_ERR(s, p) \
 191         len += scnprintf(buf + len, size - len, "%22s : %10u\n", s, \
 192                          rxstats->phy_err_stats[p]);
 193
 194         struct ath_rx_stats *rxstats = file->private_data;
 195         char *buf;
 196         unsigned int len = 0, size = 1600;
 197         ssize_t retval = 0;
 198
 199         buf = kzalloc(size, GFP_KERNEL);
 200         if (buf == NULL)
 201                 return -ENOMEM;
 202
 203         PHY_ERR("UNDERRUN ERR", ATH9K_PHYERR_UNDERRUN);
 204         PHY_ERR("TIMING ERR", ATH9K_PHYERR_TIMING);
 205         PHY_ERR("PARITY ERR", ATH9K_PHYERR_PARITY);
 206         PHY_ERR("RATE ERR", ATH9K_PHYERR_RATE);
 207         PHY_ERR("LENGTH ERR", ATH9K_PHYERR_LENGTH);
 208         PHY_ERR("RADAR ERR", ATH9K_PHYERR_RADAR);
 209         PHY_ERR("SERVICE ERR", ATH9K_PHYERR_SERVICE);
 210         PHY_ERR("TOR ERR", ATH9K_PHYERR_TOR);
 211
 212         PHY_ERR("OFDM-TIMING ERR", ATH9K_PHYERR_OFDM_TIMING);
 213         PHY_ERR("OFDM-SIGNAL-PARITY ERR", ATH9K_PHYERR_OFDM_SIGNAL_PARITY);
 214         PHY_ERR("OFDM-RATE ERR", ATH9K_PHYERR_OFDM_RATE_ILLEGAL);
 215         PHY_ERR("OFDM-LENGTH ERR", ATH9K_PHYERR_OFDM_LENGTH_ILLEGAL);
 216         PHY_ERR("OFDM-POWER-DROP ERR", ATH9K_PHYERR_OFDM_POWER_DROP);
 217         PHY_ERR("OFDM-SERVICE ERR", ATH9K_PHYERR_OFDM_SERVICE);
 218         PHY_ERR("OFDM-RESTART ERR", ATH9K_PHYERR_OFDM_RESTART);
 219
 220         PHY_ERR("CCK-BLOCKER ERR", ATH9K_PHYERR_CCK_BLOCKER);
 221         PHY_ERR("CCK-TIMING ERR", ATH9K_PHYERR_CCK_TIMING);
 222         PHY_ERR("CCK-HEADER-CRC ERR", ATH9K_PHYERR_CCK_HEADER_CRC);
 223         PHY_ERR("CCK-RATE ERR", ATH9K_PHYERR_CCK_RATE_ILLEGAL);
 224         PHY_ERR("CCK-LENGTH ERR", ATH9K_PHYERR_CCK_LENGTH_ILLEGAL);
 225         PHY_ERR("CCK-POWER-DROP ERR", ATH9K_PHYERR_CCK_POWER_DROP);
 226         PHY_ERR("CCK-SERVICE ERR", ATH9K_PHYERR_CCK_SERVICE);
 227         PHY_ERR("CCK-RESTART ERR", ATH9K_PHYERR_CCK_RESTART);
 228
 229         PHY_ERR("HT-CRC ERR", ATH9K_PHYERR_HT_CRC_ERROR);
 230         PHY_ERR("HT-LENGTH ERR", ATH9K_PHYERR_HT_LENGTH_ILLEGAL);
 231         PHY_ERR("HT-RATE ERR", ATH9K_PHYERR_HT_RATE_ILLEGAL);
 232         PHY_ERR("HT-ZLF ERR", ATH9K_PHYERR_HT_ZLF);
 233
 234         PHY_ERR("FALSE-RADAR-EXT ERR", ATH9K_PHYERR_FALSE_RADAR_EXT);
 235         PHY_ERR("GREEN-FIELD ERR", ATH9K_PHYERR_GREEN_FIELD);
 236         PHY_ERR("SPECTRAL ERR", ATH9K_PHYERR_SPECTRAL);
 237
 238         if (len > size)
 239                 len = size;
 240
 241         retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 242         kfree(buf);
 243
 244         return retval;
 245
 246 #undef PHY_ERR
 247 }
 248
 249 static const struct file_operations fops_phy_err = {
 250         .read = read_file_phy_err,
 251         .open = simple_open,
 252         .owner = THIS_MODULE,
 253         .llseek = default_llseek,
 254 };
 255
 256 void ath9k_cmn_debug_phy_err(struct dentry *debugfs_phy,
 257                              struct ath_rx_stats *rxstats)
 258 {
 259         debugfs_create_file("phy_err", 0400, debugfs_phy, rxstats,
 260                             &fops_phy_err);
 261 }
 262 EXPORT_SYMBOL(ath9k_cmn_debug_phy_err);