aboutsummaryrefslogtreecommitdiff
path: root/drivers/net/wireless/iwlwifi/iwl-debugfs.c
diff options
context:
space:
mode:
authorTomas Winkler <tomas.winkler@intel.com>2008-05-05 10:22:32 +0800
committerJohn W. Linville <linville@tuxdriver.com>2008-05-14 16:29:42 -0400
commit8dd266ef4eb51d034fa1c5f9307a9ff07547d8e6 (patch)
treeca9097eca519737450c518a62b81b5fcd6c91ef7 /drivers/net/wireless/iwlwifi/iwl-debugfs.c
parent6def9761f72501e638e79eebcd70afea12a3a93d (diff)
iwlwifi: debugfs EEPROM dump
This patch adds EEPROM dump in debugfs. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Abhijeet Kolekar <abhijeet.kolekar@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-debugfs.c')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-debugfs.c42
1 files changed, 42 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index 37b52e63739..ad25806dfaf 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -277,8 +277,48 @@ static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
return ret;
}
+static ssize_t iwl_dbgfs_eeprom_read(struct file *file,
+ char __user *user_buf,
+ size_t count,
+ loff_t *ppos)
+{
+ ssize_t ret;
+ struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+ int pos = 0, ofs = 0, buf_size = 0;
+ const u8 *ptr;
+ char *buf;
+ size_t eeprom_len = priv->cfg->eeprom_size;
+ buf_size = 4 * eeprom_len + 256;
+
+ if (eeprom_len % 16) {
+ IWL_ERROR("EEPROM size is not multiple of 16.\n");
+ return -ENODATA;
+ }
+
+ /* 4 characters for byte 0xYY */
+ buf = kzalloc(buf_size, GFP_KERNEL);
+ if (!buf) {
+ IWL_ERROR("Can not allocate Buffer\n");
+ return -ENOMEM;
+ }
+
+ ptr = priv->eeprom;
+ for (ofs = 0 ; ofs < eeprom_len ; ofs += 16) {
+ pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x ", ofs);
+ hex_dump_to_buffer(ptr + ofs, 16 , 16, 2, buf + pos,
+ buf_size - pos, 0);
+ pos += strlen(buf);
+ if (buf_size - pos > 0)
+ buf[pos++] = '\n';
+ }
+
+ ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+ kfree(buf);
+ return ret;
+}
DEBUGFS_READ_WRITE_FILE_OPS(sram);
+DEBUGFS_READ_FILE_OPS(eeprom);
DEBUGFS_READ_FILE_OPS(stations);
DEBUGFS_READ_FILE_OPS(rx_statistics);
DEBUGFS_READ_FILE_OPS(tx_statistics);
@@ -304,6 +344,7 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
}
DEBUGFS_ADD_DIR(data, dbgfs->dir_drv);
+ DEBUGFS_ADD_FILE(eeprom, data);
DEBUGFS_ADD_FILE(sram, data);
DEBUGFS_ADD_FILE(stations, data);
DEBUGFS_ADD_FILE(rx_statistics, data);
@@ -327,6 +368,7 @@ void iwl_dbgfs_unregister(struct iwl_priv *priv)
if (!(priv->dbgfs))
return;
+ DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_eeprom);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_rx_statistics);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_tx_statistics);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_sram);