int iwl_dump_nic_event_log(struct iwl_trans *trans, 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 */
u32 logsize;
int pos = 0;
size_t bufsz = 0;
struct iwl_priv *priv = priv(trans);
base = priv->device_pointers.log_event_table;
if (priv->ucode_type == IWL_UCODE_INIT) {
logsize = priv->init_evtlog_size;
if (!base)
base = priv->init_evtlog_ptr;
} else {
logsize = priv->inst_evtlog_size;
if (!base)
base = priv->inst_evtlog_ptr;
}
if (!iwlagn_hw_valid_rtc_data_addr(base)) {
IWL_ERR(trans,
"Invalid event log pointer 0x%08X for %s uCode\n",
base,
(priv->ucode_type == IWL_UCODE_INIT)
? "Init" : "RT");
return -EINVAL;
}
/* event log header */
capacity = iwl_read_targ_mem(bus(trans), base);
mode = iwl_read_targ_mem(bus(trans), base + (1 * sizeof(u32)));
num_wraps = iwl_read_targ_mem(bus(trans), base + (2 * sizeof(u32)));
next_entry = iwl_read_targ_mem(bus(trans), base + (3 * sizeof(u32)));
if (capacity > logsize) {
IWL_ERR(trans, "Log capacity %d is bogus, limit to %d "
"entries\n", capacity, logsize);
capacity = logsize;
}
if (next_entry > logsize) {
IWL_ERR(trans, "Log write index %d is bogus, limit to %d\n",
next_entry, logsize);
next_entry = logsize;
}
size = num_wraps ? capacity : next_entry;
/* bail out if nothing in log */
if (size == 0) {
IWL_ERR(trans, "Start IWL Event Log Dump: nothing in log\n");
return pos;
}
#ifdef CONFIG_IWLWIFI_DEBUG
if (!(iwl_get_debug_level(trans->shrd) & IWL_DL_FW_ERRORS) && !full_log)
size = (size > DEFAULT_DUMP_EVENT_LOG_ENTRIES)
? DEFAULT_DUMP_EVENT_LOG_ENTRIES : size;
#else
size = (size > DEFAULT_DUMP_EVENT_LOG_ENTRIES)
? DEFAULT_DUMP_EVENT_LOG_ENTRIES : size;
#endif
IWL_ERR(trans, "Start IWL Event Log Dump: display last %u entries\n",
size);
#ifdef CONFIG_IWLWIFI_DEBUG
if (display) {
if (full_log)
bufsz = capacity * 48;
else
bufsz = size * 48;
*buf = kmalloc(bufsz, GFP_KERNEL);
if (!*buf)
return -ENOMEM;
}
if ((iwl_get_debug_level(trans->shrd) & 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 = iwl_print_event_log(trans, next_entry,
capacity - next_entry, mode,
pos, buf, bufsz);
/* (then/else) start at top of log */
pos = iwl_print_event_log(trans, 0,
next_entry, mode, pos, buf, bufsz);
} else
pos = iwl_print_last_event_logs(trans, capacity, num_wraps,
next_entry, size, mode,
pos, buf, bufsz);
#else
pos = iwl_print_last_event_logs(trans, capacity, num_wraps,
next_entry, size, mode,
pos, buf, bufsz);
#endif
return pos;
}
int iwl_dump_nic_event_log(struct iwl_trans *trans, bool full_log,
char **buf, bool display)
{
u32 base; /* */
u32 capacity; /* */
u32 mode; /* */
u32 num_wraps; /* */
u32 next_entry; /* */
u32 size; /* */
u32 logsize;
int pos = 0;
size_t bufsz = 0;
base = trans->shrd->device_pointers.log_event_table;
if (trans->shrd->ucode_type == IWL_UCODE_INIT) {
logsize = trans->shrd->fw->init_evtlog_size;
if (!base)
base = trans->shrd->fw->init_evtlog_ptr;
} else {
logsize = trans->shrd->fw->inst_evtlog_size;
if (!base)
base = trans->shrd->fw->inst_evtlog_ptr;
}
if (!iwlagn_hw_valid_rtc_data_addr(base)) {
IWL_ERR(trans,
"Invalid event log pointer 0x%08X for %s uCode\n",
base,
(trans->shrd->ucode_type == IWL_UCODE_INIT)
? "Init" : "RT");
return -EINVAL;
}
/* */
capacity = iwl_read_targ_mem(trans, base);
mode = iwl_read_targ_mem(trans, base + (1 * sizeof(u32)));
num_wraps = iwl_read_targ_mem(trans, base + (2 * sizeof(u32)));
next_entry = iwl_read_targ_mem(trans, base + (3 * sizeof(u32)));
if (capacity > logsize) {
IWL_ERR(trans, "Log capacity %d is bogus, limit to %d "
"entries\n", capacity, logsize);
capacity = logsize;
}
if (next_entry > logsize) {
IWL_ERR(trans, "Log write index %d is bogus, limit to %d\n",
next_entry, logsize);
next_entry = logsize;
}
size = num_wraps ? capacity : next_entry;
/* */
if (size == 0) {
IWL_ERR(trans, "Start IWL Event Log Dump: nothing in log\n");
return pos;
}
#ifdef CONFIG_IWLWIFI_DEBUG
if (!(iwl_have_debug_level(IWL_DL_FW_ERRORS)) && !full_log)
size = (size > DEFAULT_DUMP_EVENT_LOG_ENTRIES)
? DEFAULT_DUMP_EVENT_LOG_ENTRIES : size;
#else
size = (size > DEFAULT_DUMP_EVENT_LOG_ENTRIES)
? DEFAULT_DUMP_EVENT_LOG_ENTRIES : size;
#endif
IWL_ERR(trans, "Start IWL Event Log Dump: display last %u entries\n",
size);
#ifdef CONFIG_IWLWIFI_DEBUG
if (display) {
if (full_log)
bufsz = capacity * 48;
else
bufsz = size * 48;
*buf = kmalloc(bufsz, GFP_KERNEL);
if (!*buf)
return -ENOMEM;
}
if (iwl_have_debug_level(IWL_DL_FW_ERRORS) || full_log) {
/*
*/
if (num_wraps)
pos = iwl_print_event_log(trans, next_entry,
capacity - next_entry, mode,
pos, buf, bufsz);
/* */
pos = iwl_print_event_log(trans, 0,
next_entry, mode, pos, buf, bufsz);
} else
pos = iwl_print_last_event_logs(trans, capacity, num_wraps,
next_entry, size, mode,
pos, buf, bufsz);
#else
pos = iwl_print_last_event_logs(trans, capacity, num_wraps,
next_entry, size, mode,
pos, buf, bufsz);
#endif
return pos;
}
