diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-debugfs.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-debugfs.c | 105 |
1 files changed, 102 insertions, 3 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c index 21e0f6699da..ee5aed12a4b 100644 --- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c +++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c @@ -420,6 +420,23 @@ static ssize_t iwl_dbgfs_nvm_read(struct file *file, 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; + + pos = priv->cfg->ops->lib->dump_nic_event_log(priv, true, &buf, true); + if (pos && 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) @@ -436,7 +453,8 @@ static ssize_t iwl_dbgfs_log_event_write(struct file *file, 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); + priv->cfg->ops->lib->dump_nic_event_log(priv, true, + NULL, false); return count; } @@ -859,7 +877,7 @@ static ssize_t iwl_dbgfs_current_sleep_command_read(struct file *file, } DEBUGFS_READ_WRITE_FILE_OPS(sram); -DEBUGFS_WRITE_FILE_OPS(log_event); +DEBUGFS_READ_WRITE_FILE_OPS(log_event); DEBUGFS_READ_FILE_OPS(nvm); DEBUGFS_READ_FILE_OPS(stations); DEBUGFS_READ_FILE_OPS(channels); @@ -1845,6 +1863,80 @@ static ssize_t iwl_dbgfs_clear_ucode_statistics_write(struct file *file, 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 = (struct iwl_priv *)file->private_data; + int pos = 0; + char buf[128]; + const size_t bufsz = sizeof(buf); + ssize_t ret; + + 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); + + ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); + return ret; +} + +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; +} + DEBUGFS_READ_FILE_OPS(rx_statistics); DEBUGFS_READ_FILE_OPS(tx_statistics); DEBUGFS_READ_WRITE_FILE_OPS(traffic_log); @@ -1859,6 +1951,8 @@ DEBUGFS_READ_FILE_OPS(tx_power); 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); /* * Create the debugfs files and directories @@ -1889,7 +1983,7 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name) DEBUGFS_ADD_DIR(debug, dbgfs->dir_drv); DEBUGFS_ADD_FILE(nvm, data, S_IRUSR); DEBUGFS_ADD_FILE(sram, data, S_IWUSR | S_IRUSR); - DEBUGFS_ADD_FILE(log_event, data, S_IWUSR); + DEBUGFS_ADD_FILE(log_event, data, S_IWUSR | S_IRUSR); DEBUGFS_ADD_FILE(stations, data, S_IRUSR); DEBUGFS_ADD_FILE(channels, data, S_IRUSR); DEBUGFS_ADD_FILE(status, data, S_IRUSR); @@ -1909,12 +2003,14 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name) DEBUGFS_ADD_FILE(power_save_status, debug, S_IRUSR); DEBUGFS_ADD_FILE(clear_ucode_statistics, debug, S_IWUSR); DEBUGFS_ADD_FILE(clear_traffic_statistics, debug, S_IWUSR); + DEBUGFS_ADD_FILE(csr, debug, S_IWUSR); if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) != CSR_HW_REV_TYPE_3945) { DEBUGFS_ADD_FILE(ucode_rx_stats, debug, S_IRUSR); DEBUGFS_ADD_FILE(ucode_tx_stats, debug, S_IRUSR); DEBUGFS_ADD_FILE(ucode_general_stats, debug, S_IRUSR); DEBUGFS_ADD_FILE(sensitivity, debug, S_IRUSR); DEBUGFS_ADD_FILE(chain_noise, debug, S_IRUSR); + DEBUGFS_ADD_FILE(ucode_tracing, debug, S_IWUSR | S_IRUSR); } DEBUGFS_ADD_BOOL(disable_sensitivity, rf, &priv->disable_sens_cal); DEBUGFS_ADD_BOOL(disable_chain_noise, rf, @@ -1966,6 +2062,7 @@ void iwl_dbgfs_unregister(struct iwl_priv *priv) file_clear_ucode_statistics); DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files. file_clear_traffic_statistics); + DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files.file_csr); if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) != CSR_HW_REV_TYPE_3945) { DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files. file_ucode_rx_stats); @@ -1977,6 +2074,8 @@ void iwl_dbgfs_unregister(struct iwl_priv *priv) file_sensitivity); DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files. file_chain_noise); + DEBUGFS_REMOVE(priv->dbgfs->dbgfs_debug_files. + file_ucode_tracing); } DEBUGFS_REMOVE(priv->dbgfs->dir_debug); DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_sensitivity); |