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Commit c549e390 authored by Luciano Coelho's avatar Luciano Coelho Committed by Emmanuel Grumbach
Browse files

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: default avatarLuciano Coelho <luciano.coelho@intel.com>
Reviewed-by: default avatarJohannes Berg <johannes.berg@intel.com>
Signed-off-by: default avatarEmmanuel Grumbach <emmanuel.grumbach@intel.com>
parent 3edf8ff6

drivers/net/wireless/iwlwifi/mvm/debugfs.c

+25 −0
Original line number Original line Diff line number Diff line
@@ -326,6 +326,29 @@ static ssize_t iwl_dbgfs_set_nic_temperature_write(struct iwl_mvm *mvm, 
	return count;

	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,

static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,

				       size_t count, loff_t *ppos)

				       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_WRITE_FILE_OPS(sta_drain, 8);

MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64);

MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64);

MVM_DEBUGFS_READ_WRITE_FILE_OPS(set_nic_temperature, 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(stations);

MVM_DEBUGFS_READ_FILE_OPS(bt_notif);

MVM_DEBUGFS_READ_FILE_OPS(bt_notif);

MVM_DEBUGFS_READ_FILE_OPS(bt_cmd);

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(sram, mvm->debugfs_dir, S_IWUSR | S_IRUSR);

	MVM_DEBUGFS_ADD_FILE(set_nic_temperature, mvm->debugfs_dir,

	MVM_DEBUGFS_ADD_FILE(set_nic_temperature, mvm->debugfs_dir,

			     S_IWUSR | S_IRUSR);

			     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(stations, dbgfs_dir, S_IRUSR);

	MVM_DEBUGFS_ADD_FILE(fw_error_dump, 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);

	MVM_DEBUGFS_ADD_FILE(bt_notif, dbgfs_dir, S_IRUSR);

drivers/net/wireless/iwlwifi/mvm/mvm.h

+1 −0
Original line number Original line Diff line number Diff line
@@ -1188,6 +1188,7 @@ void iwl_mvm_tt_handler(struct iwl_mvm *mvm); 
void iwl_mvm_tt_initialize(struct iwl_mvm *mvm, u32 min_backoff);

void iwl_mvm_tt_initialize(struct iwl_mvm *mvm, u32 min_backoff);

void iwl_mvm_tt_exit(struct iwl_mvm *mvm);

void iwl_mvm_tt_exit(struct iwl_mvm *mvm);

void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state);

void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state);

int iwl_mvm_get_temp(struct iwl_mvm *mvm);





/* smart fifo */

/* smart fifo */

int iwl_mvm_sf_update(struct iwl_mvm *mvm, struct ieee80211_vif *vif,

int iwl_mvm_sf_update(struct iwl_mvm *mvm, struct ieee80211_vif *vif,

drivers/net/wireless/iwlwifi/mvm/tt.c

+1 −1
Original line number Original line Diff line number Diff line
@@ -135,7 +135,7 @@ static int iwl_mvm_get_temp_cmd(struct iwl_mvm *mvm) 
				    sizeof(cmd), &cmd);

				    sizeof(cmd), &cmd);

}

}





static int iwl_mvm_get_temp(struct iwl_mvm *mvm)

int iwl_mvm_get_temp(struct iwl_mvm *mvm)

{

{

	struct iwl_notification_wait wait_temp_notif;

	struct iwl_notification_wait wait_temp_notif;

	static const u8 temp_notif[] = { DTS_MEASUREMENT_NOTIFICATION };

	static const u8 temp_notif[] = { DTS_MEASUREMENT_NOTIFICATION };