iwlwifi: trigger event log from debugfs

This patch adds a trigger for event log printing to debugfs.
It removes the triger from sysfs.

Signed-off-by: Ester Kummer <ester.kummer@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 1 insertions, 113 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl4965-base.c b/drivers/net/wireless/iwlwifi/iwl4965-base.c
index 05edde17830..48c59cbefb4 100644
--- a/drivers/net/wireless/iwlwifi/iwl4965-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl4965-base.c
@@ -2692,103 +2692,6 @@ static void iwl4965_dump_nic_error_log(struct iwl_priv *priv)
 	iwl_release_nic_access(priv);
 }
 
-#define EVENT_START_OFFSET  (4 * sizeof(u32))
-
-/**
- * iwl4965_print_event_log - Dump error event log to syslog
- *
- * NOTE: Must be called with iwl_grab_nic_access() already obtained!
- */
-static void iwl4965_print_event_log(struct iwl_priv *priv, u32 start_idx,
-				u32 num_events, u32 mode)
-{
-	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 */
-
-	if (num_events == 0)
-		return;
-
-	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);
-
-	/* "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_read_targ_mem(priv, ptr);
-		ptr += sizeof(u32);
-		time = iwl_read_targ_mem(priv, ptr);
-		ptr += sizeof(u32);
-		if (mode == 0)
-			IWL_ERROR("0x%08x\t%04u\n", time, ev); /* data, ev */
-		else {
-			data = iwl_read_targ_mem(priv, ptr);
-			ptr += sizeof(u32);
-			IWL_ERROR("%010u\t0x%08x\t%04u\n", time, data, ev);
-		}
-	}
-}
-
-static void iwl4965_dump_nic_event_log(struct iwl_priv *priv)
-{
-	int rc;
-	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 */
-
-	base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
-	if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) {
-		IWL_ERROR("Invalid event 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;
-	}
-
-	/* event log header */
-	capacity = iwl_read_targ_mem(priv, base);
-	mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32)));
-	num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32)));
-	next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32)));
-
-	size = num_wraps ? capacity : next_entry;
-
-	/* bail out if nothing in log */
-	if (size == 0) {
-		IWL_ERROR("Start IWL Event Log Dump: nothing in log\n");
-		iwl_release_nic_access(priv);
-		return;
-	}
-
-	IWL_ERROR("Start IWL Event Log Dump: display count %d, wraps %d\n",
-		  size, num_wraps);
-
-	/* 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)
-		iwl4965_print_event_log(priv, next_entry,
-				    capacity - next_entry, mode);
-
-	/* (then/else) start at top of log */
-	iwl4965_print_event_log(priv, 0, next_entry, mode);
-
-	iwl_release_nic_access(priv);
-}
-
 /**
  * iwl4965_irq_handle_error - called for HW or SW error interrupt from card
  */
@@ -2803,7 +2706,7 @@ static void iwl4965_irq_handle_error(struct iwl_priv *priv)
 #ifdef CONFIG_IWLWIFI_DEBUG
 	if (priv->debug_level & IWL_DL_FW_ERRORS) {
 		iwl4965_dump_nic_error_log(priv);
-		iwl4965_dump_nic_event_log(priv);
+		iwl_dump_nic_event_log(priv);
 		iwl4965_print_rx_config_cmd(priv);
 	}
 #endif
@@ -5640,20 +5543,6 @@ static ssize_t dump_error_log(struct device *d,
 
 static DEVICE_ATTR(dump_errors, S_IWUSR, NULL, dump_error_log);
 
-static ssize_t dump_event_log(struct device *d,
-			      struct device_attribute *attr,
-			      const char *buf, size_t count)
-{
-	char *p = (char *)buf;
-
-	if (p[0] == '1')
-		iwl4965_dump_nic_event_log((struct iwl_priv *)d->driver_data);
-
-	return strnlen(buf, count);
-}
-
-static DEVICE_ATTR(dump_events, S_IWUSR, NULL, dump_event_log);
-
 /*****************************************************************************
  *
  * driver setup and teardown
@@ -5700,7 +5589,6 @@ static void iwl4965_cancel_deferred_work(struct iwl_priv *priv)
 static struct attribute *iwl4965_sysfs_entries[] = {
 	&dev_attr_channels.attr,
 	&dev_attr_dump_errors.attr,
-	&dev_attr_dump_events.attr,
 	&dev_attr_flags.attr,
 	&dev_attr_filter_flags.attr,
 #ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT