diff options
| author | Wey-Yi Guy <wey-yi.w.guy@intel.com> | 2010-02-03 11:47:20 -0800 |
|---|---|---|
| committer | Reinette Chatre <reinette.chatre@intel.com> | 2010-02-11 10:25:55 -0800 |
| commit | 04cafd7fa74d5f70efc93bef36f118177057ff74 (patch) | |
| tree | ed477d1e8d1e6cc0f2e4419b9e00039f91a7d2f0 | |
| parent | a93e7973d0983d22fcbe5f691244736211639fe7 (diff) | |
iwlwifi: add debug function to reset/reload radio/firmware
Adding function to force reset radio or reload firmware from debugfs.
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-debugfs.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c index d134301b553..78298be0bdb 100644 --- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c +++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c @@ -2223,6 +2223,32 @@ static ssize_t iwl_dbgfs_plcp_delta_write(struct file *file, return count; } +static ssize_t iwl_dbgfs_force_reset_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) { + + struct iwl_priv *priv = file->private_data; + char buf[8]; + int buf_size; + int reset, ret; + + memset(buf, 0, sizeof(buf)); + buf_size = min(count, sizeof(buf) - 1); + if (copy_from_user(buf, user_buf, buf_size)) + return -EFAULT; + if (sscanf(buf, "%d", &reset) != 1) + return -EINVAL; + switch (reset) { + case IWL_RF_RESET: + case IWL_FW_RESET: + ret = iwl_force_reset(priv, reset); + break; + default: + return -EINVAL; + } + return ret ? ret : count; +} + DEBUGFS_READ_FILE_OPS(rx_statistics); DEBUGFS_READ_FILE_OPS(tx_statistics); DEBUGFS_READ_WRITE_FILE_OPS(traffic_log); @@ -2243,6 +2269,7 @@ DEBUGFS_READ_FILE_OPS(fh_reg); DEBUGFS_READ_WRITE_FILE_OPS(missed_beacon); DEBUGFS_WRITE_FILE_OPS(internal_scan); DEBUGFS_READ_WRITE_FILE_OPS(plcp_delta); +DEBUGFS_WRITE_FILE_OPS(force_reset); /* * Create the debugfs files and directories @@ -2296,6 +2323,7 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name) DEBUGFS_ADD_FILE(missed_beacon, dir_debug, S_IWUSR); DEBUGFS_ADD_FILE(internal_scan, dir_debug, S_IWUSR); DEBUGFS_ADD_FILE(plcp_delta, dir_debug, S_IWUSR | S_IRUSR); + DEBUGFS_ADD_FILE(force_reset, dir_debug, S_IWUSR); if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) != CSR_HW_REV_TYPE_3945) { DEBUGFS_ADD_FILE(ucode_rx_stats, dir_debug, S_IRUSR); DEBUGFS_ADD_FILE(ucode_tx_stats, dir_debug, S_IRUSR); |