diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-debugfs.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-debugfs.c | 96 |
1 files changed, 93 insertions, 3 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c index 64eb585f1578..ffc4be3842b2 100644 --- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c +++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c @@ -389,7 +389,7 @@ static ssize_t iwl_dbgfs_channels_read(struct file *file, char __user *user_buf, 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_NO_IBSS) || (channels[i].flags & IEEE80211_CHAN_RADAR)) ? "" : ", IBSS", @@ -456,8 +456,6 @@ static ssize_t iwl_dbgfs_status_read(struct file *file, 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_IN_SUSPEND:\t %d\n", - test_bit(STATUS_IN_SUSPEND, &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", @@ -475,6 +473,95 @@ static ssize_t iwl_dbgfs_status_read(struct file *file, return simple_read_from_buffer(user_buf, count, ppos, buf, pos); } +static ssize_t iwl_dbgfs_interrupt_read(struct file *file, + char __user *user_buf, + size_t count, loff_t *ppos) { + + struct iwl_priv *priv = (struct iwl_priv *)file->private_data; + int pos = 0; + int cnt = 0; + char *buf; + int bufsz = 24 * 64; /* 24 items * 64 char per item */ + ssize_t ret; + + buf = kzalloc(bufsz, GFP_KERNEL); + if (!buf) { + IWL_ERR(priv, "Can not allocate Buffer\n"); + return -ENOMEM; + } + + pos += scnprintf(buf + pos, bufsz - pos, + "Interrupt Statistics Report:\n"); + + pos += scnprintf(buf + pos, bufsz - pos, "HW Error:\t\t\t %u\n", + priv->isr_stats.hw); + pos += scnprintf(buf + pos, bufsz - pos, "SW Error:\t\t\t %u\n", + priv->isr_stats.sw); + if (priv->isr_stats.sw > 0) { + pos += scnprintf(buf + pos, bufsz - pos, + "\tLast Restarting Code: 0x%X\n", + priv->isr_stats.sw_err); + } +#ifdef CONFIG_IWLWIFI_DEBUG + pos += scnprintf(buf + pos, bufsz - pos, "Frame transmitted:\t\t %u\n", + priv->isr_stats.sch); + pos += scnprintf(buf + pos, bufsz - pos, "Alive interrupt:\t\t %u\n", + priv->isr_stats.alive); +#endif + pos += scnprintf(buf + pos, bufsz - pos, + "HW RF KILL switch toggled:\t %u\n", + priv->isr_stats.rfkill); + + pos += scnprintf(buf + pos, bufsz - pos, "CT KILL:\t\t\t %u\n", + priv->isr_stats.ctkill); + + pos += scnprintf(buf + pos, bufsz - pos, "Wakeup Interrupt:\t\t %u\n", + priv->isr_stats.wakeup); + + pos += scnprintf(buf + pos, bufsz - pos, + "Rx command responses:\t\t %u\n", + priv->isr_stats.rx); + for (cnt = 0; cnt < REPLY_MAX; cnt++) { + if (priv->isr_stats.rx_handlers[cnt] > 0) + pos += scnprintf(buf + pos, bufsz - pos, + "\tRx handler[%36s]:\t\t %u\n", + get_cmd_string(cnt), + priv->isr_stats.rx_handlers[cnt]); + } + + pos += scnprintf(buf + pos, bufsz - pos, "Tx/FH interrupt:\t\t %u\n", + priv->isr_stats.tx); + + pos += scnprintf(buf + pos, bufsz - pos, "Unexpected INTA:\t\t %u\n", + priv->isr_stats.unhandled); + + ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); + kfree(buf); + return ret; +} + +static ssize_t iwl_dbgfs_interrupt_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct iwl_priv *priv = file->private_data; + char buf[8]; + int buf_size; + u32 reset_flag; + + memset(buf, 0, sizeof(buf)); + buf_size = min(count, sizeof(buf) - 1); + if (copy_from_user(buf, user_buf, buf_size)) + return -EFAULT; + if (sscanf(buf, "%x", &reset_flag) != 1) + return -EFAULT; + if (reset_flag == 0) + iwl_clear_isr_stats(priv); + + return count; +} + + DEBUGFS_READ_WRITE_FILE_OPS(sram); DEBUGFS_WRITE_FILE_OPS(log_event); DEBUGFS_READ_FILE_OPS(eeprom); @@ -483,6 +570,7 @@ DEBUGFS_READ_FILE_OPS(rx_statistics); DEBUGFS_READ_FILE_OPS(tx_statistics); DEBUGFS_READ_FILE_OPS(channels); DEBUGFS_READ_FILE_OPS(status); +DEBUGFS_READ_WRITE_FILE_OPS(interrupt); /* * Create the debugfs files and directories @@ -518,6 +606,7 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name) DEBUGFS_ADD_FILE(tx_statistics, data); DEBUGFS_ADD_FILE(channels, data); DEBUGFS_ADD_FILE(status, data); + DEBUGFS_ADD_FILE(interrupt, data); DEBUGFS_ADD_BOOL(disable_sensitivity, rf, &priv->disable_sens_cal); DEBUGFS_ADD_BOOL(disable_chain_noise, rf, &priv->disable_chain_noise_cal); @@ -548,6 +637,7 @@ void iwl_dbgfs_unregister(struct iwl_priv *priv) DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_stations); DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_channels); DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_status); + DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_interrupt); DEBUGFS_REMOVE(priv->dbgfs->dir_data); DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_sensitivity); DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_chain_noise); |