1 files changed, 72 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 7e25ca45f671..785396fd39a0 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -1056,6 +1056,78 @@ int iwl_verify_ucode(struct iwl_priv *priv)
 EXPORT_SYMBOL(iwl_verify_ucode);
 
 
+static const char *desc_lookup(int i)
+{
+	switch (i) {
+	case 1:
+		return "FAIL";
+	case 2:
+		return "BAD_PARAM";
+	case 3:
+		return "BAD_CHECKSUM";
+	case 4:
+		return "NMI_INTERRUPT";
+	case 5:
+		return "SYSASSERT";
+	case 6:
+		return "FATAL_ERROR";
+	}
+
+	return "UNKNOWN";
+}
+
+#define ERROR_START_OFFSET  (1 * sizeof(u32))
+#define ERROR_ELEM_SIZE     (7 * sizeof(u32))
+
+void iwl_dump_nic_error_log(struct iwl_priv *priv)
+{
+	u32 data2, line;
+	u32 desc, time, count, base, data1;
+	u32 blink1, blink2, ilink1, ilink2;
+	int rc;
+
+	base = le32_to_cpu(priv->card_alive.error_event_table_ptr);
+
+	if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) {
+		IWL_ERROR("Not valid error log pointer 0x%08X\n", base);
+		return;
+	}
+
+	rc = iwl_grab_nic_access(priv);
+	if (rc) {
+		IWL_WARNING("Can not read from adapter at this time.\n");
+		return;
+	}
+
+	count = iwl_read_targ_mem(priv, base);
+
+	if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) {
+		IWL_ERROR("Start IWL Error Log Dump:\n");
+		IWL_ERROR("Status: 0x%08lX, count: %d\n", priv->status, count);
+	}
+
+	desc = iwl_read_targ_mem(priv, base + 1 * sizeof(u32));
+	blink1 = iwl_read_targ_mem(priv, base + 3 * sizeof(u32));
+	blink2 = iwl_read_targ_mem(priv, base + 4 * sizeof(u32));
+	ilink1 = iwl_read_targ_mem(priv, base + 5 * sizeof(u32));
+	ilink2 = iwl_read_targ_mem(priv, base + 6 * sizeof(u32));
+	data1 = iwl_read_targ_mem(priv, base + 7 * sizeof(u32));
+	data2 = iwl_read_targ_mem(priv, base + 8 * sizeof(u32));
+	line = iwl_read_targ_mem(priv, base + 9 * sizeof(u32));
+	time = iwl_read_targ_mem(priv, base + 11 * sizeof(u32));
+
+	IWL_ERROR("Desc        Time       "
+		"data1      data2      line\n");
+	IWL_ERROR("%-13s (#%d) %010u 0x%08X 0x%08X %u\n",
+		desc_lookup(desc), desc, time, data1, data2, line);
+	IWL_ERROR("blink1  blink2  ilink1  ilink2\n");
+	IWL_ERROR("0x%05X 0x%05X 0x%05X 0x%05X\n", blink1, blink2,
+		ilink1, ilink2);
+
+	iwl_release_nic_access(priv);
+}
+EXPORT_SYMBOL(iwl_dump_nic_error_log);
+
 #define EVENT_START_OFFSET  (4 * sizeof(u32))
 
 /**