diff options
Diffstat (limited to 'drivers/net/wireless/iwlegacy/iwl3945-base.c')
-rw-r--r-- | drivers/net/wireless/iwlegacy/iwl3945-base.c | 206 |
1 files changed, 0 insertions, 206 deletions
diff --git a/drivers/net/wireless/iwlegacy/iwl3945-base.c b/drivers/net/wireless/iwlegacy/iwl3945-base.c index da42442106c..795826a014e 100644 --- a/drivers/net/wireless/iwlegacy/iwl3945-base.c +++ b/drivers/net/wireless/iwlegacy/iwl3945-base.c @@ -1409,212 +1409,6 @@ void iwl3945_dump_nic_error_log(struct iwl_priv *priv) } } -#define EVENT_START_OFFSET (6 * sizeof(u32)) - -/** - * iwl3945_print_event_log - Dump error event log to syslog - * - */ -static int iwl3945_print_event_log(struct iwl_priv *priv, u32 start_idx, - u32 num_events, u32 mode, - int pos, char **buf, size_t bufsz) -{ - u32 i; - u32 base; /* SRAM byte address of event log header */ - u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */ - u32 ptr; /* SRAM byte address of log data */ - u32 ev, time, data; /* event log data */ - unsigned long reg_flags; - - if (num_events == 0) - return pos; - - base = le32_to_cpu(priv->card_alive.log_event_table_ptr); - - if (mode == 0) - event_size = 2 * sizeof(u32); - else - event_size = 3 * sizeof(u32); - - ptr = base + EVENT_START_OFFSET + (start_idx * event_size); - - /* Make sure device is powered up for SRAM reads */ - spin_lock_irqsave(&priv->reg_lock, reg_flags); - iwl_grab_nic_access(priv); - - /* Set starting address; reads will auto-increment */ - _iwl_legacy_write_direct32(priv, HBUS_TARG_MEM_RADDR, ptr); - rmb(); - - /* "time" is actually "data" for mode 0 (no timestamp). - * place event id # at far right for easier visual parsing. */ - for (i = 0; i < num_events; i++) { - ev = _iwl_legacy_read_direct32(priv, HBUS_TARG_MEM_RDAT); - time = _iwl_legacy_read_direct32(priv, HBUS_TARG_MEM_RDAT); - if (mode == 0) { - /* data, ev */ - if (bufsz) { - pos += scnprintf(*buf + pos, bufsz - pos, - "0x%08x:%04u\n", - time, ev); - } else { - IWL_ERR(priv, "0x%08x\t%04u\n", time, ev); - trace_iwlwifi_legacy_dev_ucode_event(priv, 0, - time, ev); - } - } else { - data = _iwl_legacy_read_direct32(priv, - HBUS_TARG_MEM_RDAT); - if (bufsz) { - pos += scnprintf(*buf + pos, bufsz - pos, - "%010u:0x%08x:%04u\n", - time, data, ev); - } else { - IWL_ERR(priv, "%010u\t0x%08x\t%04u\n", - time, data, ev); - trace_iwlwifi_legacy_dev_ucode_event(priv, time, - data, ev); - } - } - } - - /* Allow device to power down */ - iwl_release_nic_access(priv); - spin_unlock_irqrestore(&priv->reg_lock, reg_flags); - return pos; -} - -/** - * iwl3945_print_last_event_logs - Dump the newest # of event log to syslog - */ -static int iwl3945_print_last_event_logs(struct iwl_priv *priv, u32 capacity, - u32 num_wraps, u32 next_entry, - u32 size, u32 mode, - int pos, char **buf, size_t bufsz) -{ - /* - * display the newest DEFAULT_LOG_ENTRIES entries - * i.e the entries just before the next ont that uCode would fill. - */ - if (num_wraps) { - if (next_entry < size) { - pos = iwl3945_print_event_log(priv, - capacity - (size - next_entry), - size - next_entry, mode, - pos, buf, bufsz); - pos = iwl3945_print_event_log(priv, 0, - next_entry, mode, - pos, buf, bufsz); - } else - pos = iwl3945_print_event_log(priv, next_entry - size, - size, mode, - pos, buf, bufsz); - } else { - if (next_entry < size) - pos = iwl3945_print_event_log(priv, 0, - next_entry, mode, - pos, buf, bufsz); - else - pos = iwl3945_print_event_log(priv, next_entry - size, - size, mode, - pos, buf, bufsz); - } - return pos; -} - -#define DEFAULT_IWL3945_DUMP_EVENT_LOG_ENTRIES (20) - -int iwl3945_dump_nic_event_log(struct iwl_priv *priv, bool full_log, - char **buf, bool display) -{ - u32 base; /* SRAM byte address of event log header */ - u32 capacity; /* event log capacity in # entries */ - u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */ - u32 num_wraps; /* # times uCode wrapped to top of log */ - u32 next_entry; /* index of next entry to be written by uCode */ - u32 size; /* # entries that we'll print */ - int pos = 0; - size_t bufsz = 0; - - base = le32_to_cpu(priv->card_alive.log_event_table_ptr); - if (!iwl3945_hw_valid_rtc_data_addr(base)) { - IWL_ERR(priv, "Invalid event log pointer 0x%08X\n", base); - return -EINVAL; - } - - /* event log header */ - capacity = iwl_legacy_read_targ_mem(priv, base); - mode = iwl_legacy_read_targ_mem(priv, base + (1 * sizeof(u32))); - num_wraps = iwl_legacy_read_targ_mem(priv, base + (2 * sizeof(u32))); - next_entry = iwl_legacy_read_targ_mem(priv, base + (3 * sizeof(u32))); - - if (capacity > priv->cfg->base_params->max_event_log_size) { - IWL_ERR(priv, "Log capacity %d is bogus, limit to %d entries\n", - capacity, priv->cfg->base_params->max_event_log_size); - capacity = priv->cfg->base_params->max_event_log_size; - } - - if (next_entry > priv->cfg->base_params->max_event_log_size) { - IWL_ERR(priv, "Log write index %d is bogus, limit to %d\n", - next_entry, priv->cfg->base_params->max_event_log_size); - next_entry = priv->cfg->base_params->max_event_log_size; - } - - size = num_wraps ? capacity : next_entry; - - /* bail out if nothing in log */ - if (size == 0) { - IWL_ERR(priv, "Start IWL Event Log Dump: nothing in log\n"); - return pos; - } - -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG - if (!(iwl_legacy_get_debug_level(priv) & IWL_DL_FW_ERRORS) && !full_log) - size = (size > DEFAULT_IWL3945_DUMP_EVENT_LOG_ENTRIES) - ? DEFAULT_IWL3945_DUMP_EVENT_LOG_ENTRIES : size; -#else - size = (size > DEFAULT_IWL3945_DUMP_EVENT_LOG_ENTRIES) - ? DEFAULT_IWL3945_DUMP_EVENT_LOG_ENTRIES : size; -#endif - - IWL_ERR(priv, "Start IWL Event Log Dump: display last %d count\n", - size); - -#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG - if (display) { - if (full_log) - bufsz = capacity * 48; - else - bufsz = size * 48; - *buf = kmalloc(bufsz, GFP_KERNEL); - if (!*buf) - return -ENOMEM; - } - if ((iwl_legacy_get_debug_level(priv) & IWL_DL_FW_ERRORS) || full_log) { - /* if uCode has wrapped back to top of log, - * start at the oldest entry, - * i.e the next one that uCode would fill. - */ - if (num_wraps) - pos = iwl3945_print_event_log(priv, next_entry, - capacity - next_entry, mode, - pos, buf, bufsz); - - /* (then/else) start at top of log */ - pos = iwl3945_print_event_log(priv, 0, next_entry, mode, - pos, buf, bufsz); - } else - pos = iwl3945_print_last_event_logs(priv, capacity, num_wraps, - next_entry, size, mode, - pos, buf, bufsz); -#else - pos = iwl3945_print_last_event_logs(priv, capacity, num_wraps, - next_entry, size, mode, - pos, buf, bufsz); -#endif - return pos; -} - static void iwl3945_irq_tasklet(struct iwl_priv *priv) { u32 inta, handled = 0; |