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| author |   Emmanuel Grumbach <emmanuel.grumbach@intel.com> | 2015-08-17 10:45:50 +0300 |
|---|---|---|
| committer |   Luciano Coelho <luciano.coelho@intel.com> | 2015-08-28 13:26:32 +0300 |
| commit | e50460192e6e326fc748037c7ba69565fc18f992 (patch) | |
| tree | 6f20ab5ff8fe428121f17f5cf2c2134f12dacae4 /drivers/net/wireless/iwlwifi/mvm/debugfs.c | |
| parent | iwlwifi: mvm: fix statistics variables type (diff) | |
| download | linux-dev-e50460192e6e326fc748037c7ba69565fc18f992.tar.xz linux-dev-e50460192e6e326fc748037c7ba69565fc18f992.zip | |
iwlwifi: mvm: add debugfs hook to send ECHO_CMD to the firmware
ECHO_CMD is a simple command that can be sent to the
firmware just to check that it is alive.
This command is useful for debug purpose, provide a debugfs
hook to send it.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/mvm/debugfs.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/mvm/debugfs.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/iwlwifi/mvm/debugfs.c index 08d2ae355700..3b8481f34a18 100644 --- a/drivers/net/wireless/iwlwifi/mvm/debugfs.c +++ b/drivers/net/wireless/iwlwifi/mvm/debugfs.c @@ -1361,11 +1361,25 @@ out: return count; } +static ssize_t +iwl_dbgfs_send_echo_cmd_write(struct iwl_mvm *mvm, char *buf, + size_t count, loff_t *ppos) +{ + int ret; + + mutex_lock(&mvm->mutex); + ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); + mutex_unlock(&mvm->mutex); + + return ret ?: count; +} + MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64); /* Device wide debugfs entries */ MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16); MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 8); +MVM_DEBUGFS_WRITE_FILE_OPS(send_echo_cmd, 8); MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64); MVM_DEBUGFS_READ_WRITE_FILE_OPS(set_nic_temperature, 64); MVM_DEBUGFS_READ_FILE_OPS(nic_temp); @@ -1425,6 +1439,7 @@ int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir) MVM_DEBUGFS_ADD_FILE(d0i3_refs, mvm->debugfs_dir, S_IRUSR | S_IWUSR); MVM_DEBUGFS_ADD_FILE(fw_dbg_conf, mvm->debugfs_dir, S_IRUSR | S_IWUSR); MVM_DEBUGFS_ADD_FILE(fw_dbg_collect, mvm->debugfs_dir, S_IWUSR); + MVM_DEBUGFS_ADD_FILE(send_echo_cmd, mvm->debugfs_dir, S_IWUSR); if (!debugfs_create_bool("enable_scan_iteration_notif", S_IRUSR | S_IWUSR, mvm->debugfs_dir, |