diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl3945-base.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl3945-base.c | 74 |
1 files changed, 62 insertions, 12 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c index 5b7e80e5bab4..5e3c35314ffe 100644 --- a/drivers/net/wireless/iwlwifi/iwl3945-base.c +++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c @@ -1482,7 +1482,6 @@ static inline void iwl_synchronize_irq(struct iwl_priv *priv) tasklet_kill(&priv->irq_tasklet); } -#ifdef CONFIG_IWLWIFI_DEBUG static const char *desc_lookup(int i) { switch (i) { @@ -1613,10 +1612,42 @@ static void iwl3945_print_event_log(struct iwl_priv *priv, u32 start_idx, spin_unlock_irqrestore(&priv->reg_lock, reg_flags); } +/** + * iwl3945_print_last_event_logs - Dump the newest # of event log to syslog + */ +static void iwl3945_print_last_event_logs(struct iwl_priv *priv, u32 capacity, + u32 num_wraps, u32 next_entry, + u32 size, u32 mode) +{ + /* + * 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) { + iwl3945_print_event_log(priv, + capacity - (size - next_entry), + size - next_entry, mode); + iwl3945_print_event_log(priv, 0, + next_entry, mode); + } else + iwl3945_print_event_log(priv, next_entry - size, + size, mode); + } else { + if (next_entry < size) + iwl3945_print_event_log(priv, 0, next_entry, mode); + else + iwl3945_print_event_log(priv, next_entry - size, + size, mode); + } +} + /* For sanity check only. Actual size is determined by uCode, typ. 512 */ #define IWL3945_MAX_EVENT_LOG_SIZE (512) -void iwl3945_dump_nic_event_log(struct iwl_priv *priv) +#define DEFAULT_IWL3945_DUMP_EVENT_LOG_ENTRIES (20) + +void iwl3945_dump_nic_event_log(struct iwl_priv *priv, bool full_log) { u32 base; /* SRAM byte address of event log header */ u32 capacity; /* event log capacity in # entries */ @@ -1657,8 +1688,17 @@ void iwl3945_dump_nic_event_log(struct iwl_priv *priv) return; } - IWL_ERR(priv, "Start IWL Event Log Dump: display count %d, wraps %d\n", - size, num_wraps); +#ifdef CONFIG_IWLWIFI_DEBUG + if (!(iwl_get_debug_level(priv) & IWL_DL_FW_ERRORS)) + 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); /* if uCode has wrapped back to top of log, start at the oldest entry, * i.e the next one that uCode would fill. */ @@ -1669,18 +1709,28 @@ void iwl3945_dump_nic_event_log(struct iwl_priv *priv) /* (then/else) start at top of log */ iwl3945_print_event_log(priv, 0, next_entry, mode); -} +#ifdef CONFIG_IWLWIFI_DEBUG + if ((iwl_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) + iwl3945_print_event_log(priv, next_entry, + capacity - next_entry, mode); + + /* (then/else) start at top of log */ + iwl3945_print_event_log(priv, 0, next_entry, mode); + } else + iwl3945_print_last_event_logs(priv, capacity, num_wraps, + next_entry, size, mode); #else -void iwl3945_dump_nic_event_log(struct iwl_priv *priv) -{ -} + iwl3945_print_last_event_logs(priv, capacity, num_wraps, + next_entry, size, mode); +#endif -void iwl3945_dump_nic_error_log(struct iwl_priv *priv) -{ } -#endif - static void iwl3945_irq_tasklet(struct iwl_priv *priv) { u32 inta, handled = 0; |