linux/drivers/net/wireless/ath/ath9k/common-debug.c
<<
>>
Prefs
   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
  19static 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
  39static 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
  47void ath9k_cmn_debug_modal_eeprom(struct dentry *debugfs_phy,
  48                                  struct ath_hw *ah)
  49{
  50        debugfs_create_file("modal_eeprom", S_IRUSR, debugfs_phy, ah,
  51                            &fops_modal_eeprom);
  52}
  53EXPORT_SYMBOL(ath9k_cmn_debug_modal_eeprom);
  54
  55static 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
  75static 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
  82void ath9k_cmn_debug_base_eeprom(struct dentry *debugfs_phy,
  83                                 struct ath_hw *ah)
  84{
  85        debugfs_create_file("base_eeprom", S_IRUSR, debugfs_phy, ah,
  86                            &fops_base_eeprom);
  87}
  88EXPORT_SYMBOL(ath9k_cmn_debug_base_eeprom);
  89
  90void 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}
 121EXPORT_SYMBOL(ath9k_cmn_debug_stat_rx);
 122
 123static 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
 148        RXS_ERR("CRC ERR", crc_err);
 149        RXS_ERR("DECRYPT CRC ERR", decrypt_crc_err);
 150        RXS_ERR("PHY ERR", phy_err);
 151        RXS_ERR("MIC ERR", mic_err);
 152        RXS_ERR("PRE-DELIM CRC ERR", pre_delim_crc_err);
 153        RXS_ERR("POST-DELIM CRC ERR", post_delim_crc_err);
 154        RXS_ERR("DECRYPT BUSY ERR", decrypt_busy_err);
 155        RXS_ERR("LENGTH-ERR", rx_len_err);
 156        RXS_ERR("OOM-ERR", rx_oom_err);
 157        RXS_ERR("RATE-ERR", rx_rate_err);
 158        RXS_ERR("TOO-MANY-FRAGS", rx_too_many_frags_err);
 159
 160        if (len > size)
 161                len = size;
 162
 163        retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 164        kfree(buf);
 165
 166        return retval;
 167
 168#undef RXS_ERR
 169}
 170
 171static const struct file_operations fops_recv = {
 172        .read = read_file_recv,
 173        .open = simple_open,
 174        .owner = THIS_MODULE,
 175        .llseek = default_llseek,
 176};
 177
 178void ath9k_cmn_debug_recv(struct dentry *debugfs_phy,
 179                          struct ath_rx_stats *rxstats)
 180{
 181        debugfs_create_file("recv", S_IRUSR, debugfs_phy, rxstats,
 182                            &fops_recv);
 183}
 184EXPORT_SYMBOL(ath9k_cmn_debug_recv);
 185
 186static ssize_t read_file_phy_err(struct file *file, char __user *user_buf,
 187                                 size_t count, loff_t *ppos)
 188{
 189#define PHY_ERR(s, p) \
 190        len += scnprintf(buf + len, size - len, "%22s : %10u\n", s, \
 191                         rxstats->phy_err_stats[p]);
 192
 193        struct ath_rx_stats *rxstats = file->private_data;
 194        char *buf;
 195        unsigned int len = 0, size = 1600;
 196        ssize_t retval = 0;
 197
 198        buf = kzalloc(size, GFP_KERNEL);
 199        if (buf == NULL)
 200                return -ENOMEM;
 201
 202        PHY_ERR("UNDERRUN ERR", ATH9K_PHYERR_UNDERRUN);
 203        PHY_ERR("TIMING ERR", ATH9K_PHYERR_TIMING);
 204        PHY_ERR("PARITY ERR", ATH9K_PHYERR_PARITY);
 205        PHY_ERR("RATE ERR", ATH9K_PHYERR_RATE);
 206        PHY_ERR("LENGTH ERR", ATH9K_PHYERR_LENGTH);
 207        PHY_ERR("RADAR ERR", ATH9K_PHYERR_RADAR);
 208        PHY_ERR("SERVICE ERR", ATH9K_PHYERR_SERVICE);
 209        PHY_ERR("TOR ERR", ATH9K_PHYERR_TOR);
 210
 211        PHY_ERR("OFDM-TIMING ERR", ATH9K_PHYERR_OFDM_TIMING);
 212        PHY_ERR("OFDM-SIGNAL-PARITY ERR", ATH9K_PHYERR_OFDM_SIGNAL_PARITY);
 213        PHY_ERR("OFDM-RATE ERR", ATH9K_PHYERR_OFDM_RATE_ILLEGAL);
 214        PHY_ERR("OFDM-LENGTH ERR", ATH9K_PHYERR_OFDM_LENGTH_ILLEGAL);
 215        PHY_ERR("OFDM-POWER-DROP ERR", ATH9K_PHYERR_OFDM_POWER_DROP);
 216        PHY_ERR("OFDM-SERVICE ERR", ATH9K_PHYERR_OFDM_SERVICE);
 217        PHY_ERR("OFDM-RESTART ERR", ATH9K_PHYERR_OFDM_RESTART);
 218
 219        PHY_ERR("CCK-BLOCKER ERR", ATH9K_PHYERR_CCK_BLOCKER);
 220        PHY_ERR("CCK-TIMING ERR", ATH9K_PHYERR_CCK_TIMING);
 221        PHY_ERR("CCK-HEADER-CRC ERR", ATH9K_PHYERR_CCK_HEADER_CRC);
 222        PHY_ERR("CCK-RATE ERR", ATH9K_PHYERR_CCK_RATE_ILLEGAL);
 223        PHY_ERR("CCK-LENGTH ERR", ATH9K_PHYERR_CCK_LENGTH_ILLEGAL);
 224        PHY_ERR("CCK-POWER-DROP ERR", ATH9K_PHYERR_CCK_POWER_DROP);
 225        PHY_ERR("CCK-SERVICE ERR", ATH9K_PHYERR_CCK_SERVICE);
 226        PHY_ERR("CCK-RESTART ERR", ATH9K_PHYERR_CCK_RESTART);
 227
 228        PHY_ERR("HT-CRC ERR", ATH9K_PHYERR_HT_CRC_ERROR);
 229        PHY_ERR("HT-LENGTH ERR", ATH9K_PHYERR_HT_LENGTH_ILLEGAL);
 230        PHY_ERR("HT-RATE ERR", ATH9K_PHYERR_HT_RATE_ILLEGAL);
 231        PHY_ERR("HT-ZLF ERR", ATH9K_PHYERR_HT_ZLF);
 232
 233        PHY_ERR("FALSE-RADAR-EXT ERR", ATH9K_PHYERR_FALSE_RADAR_EXT);
 234        PHY_ERR("GREEN-FIELD ERR", ATH9K_PHYERR_GREEN_FIELD);
 235        PHY_ERR("SPECTRAL ERR", ATH9K_PHYERR_SPECTRAL);
 236
 237        if (len > size)
 238                len = size;
 239
 240        retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
 241        kfree(buf);
 242
 243        return retval;
 244
 245#undef PHY_ERR
 246}
 247
 248static const struct file_operations fops_phy_err = {
 249        .read = read_file_phy_err,
 250        .open = simple_open,
 251        .owner = THIS_MODULE,
 252        .llseek = default_llseek,
 253};
 254
 255void ath9k_cmn_debug_phy_err(struct dentry *debugfs_phy,
 256                             struct ath_rx_stats *rxstats)
 257{
 258        debugfs_create_file("phy_err", S_IRUSR, debugfs_phy, rxstats,
 259                            &fops_phy_err);
 260}
 261EXPORT_SYMBOL(ath9k_cmn_debug_phy_err);
 262