diff options
| author | Luciano Coelho <luciano.coelho@intel.com> | 2014-09-04 16:58:47 +0400 |
|---|---|---|
| committer | Emmanuel Grumbach <emmanuel.grumbach@intel.com> | 2014-09-16 13:57:50 +0400 |
| commit | c549e3903a3be964b58449140d4f87f2132b55c2 (patch) | |
| tree | 1092f9c0e4977b455ce363a2bc7f5e4d3bed8cfe /drivers/net/wireless/iwlwifi/mvm/debugfs.c | |
| parent | 3edf8ff6179dc470d53f3b88d4a778e241a73654 (diff) | |
| download | linux-c549e3903a3be964b58449140d4f87f2132b55c2.tar.xz | |
iwlwifi: mvm: add debugfs entry to read the current temperature
When read, this new debugfs entry requests the current temperature
from the firmware and outputs it.
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/mvm/debugfs.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/mvm/debugfs.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/iwlwifi/mvm/debugfs.c index 95eb9a5ef693..50527a9bb267 100644 --- a/drivers/net/wireless/iwlwifi/mvm/debugfs.c +++ b/drivers/net/wireless/iwlwifi/mvm/debugfs.c @@ -326,6 +326,29 @@ out: return count; } +static ssize_t iwl_dbgfs_nic_temp_read(struct file *file, + char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct iwl_mvm *mvm = file->private_data; + char buf[16]; + int pos, temp; + + if (!mvm->ucode_loaded) + return -EIO; + + mutex_lock(&mvm->mutex); + temp = iwl_mvm_get_temp(mvm); + mutex_unlock(&mvm->mutex); + + if (temp < 0) + return temp; + + pos = scnprintf(buf , sizeof(buf), "%d\n", temp); + + return simple_read_from_buffer(user_buf, count, ppos, buf, pos); +} + static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { @@ -1378,6 +1401,7 @@ MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16); MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 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); MVM_DEBUGFS_READ_FILE_OPS(stations); MVM_DEBUGFS_READ_FILE_OPS(bt_notif); MVM_DEBUGFS_READ_FILE_OPS(bt_cmd); @@ -1420,6 +1444,7 @@ int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir) MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, S_IWUSR | S_IRUSR); MVM_DEBUGFS_ADD_FILE(set_nic_temperature, mvm->debugfs_dir, S_IWUSR | S_IRUSR); + MVM_DEBUGFS_ADD_FILE(nic_temp, dbgfs_dir, S_IRUSR); MVM_DEBUGFS_ADD_FILE(stations, dbgfs_dir, S_IRUSR); MVM_DEBUGFS_ADD_FILE(fw_error_dump, dbgfs_dir, S_IRUSR); MVM_DEBUGFS_ADD_FILE(bt_notif, dbgfs_dir, S_IRUSR); |