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Commit 3669cd31 authored by Liad Kaufman's avatar Liad Kaufman Committed by Luca Coelho
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iwlwifi: mvm: add dbgfs entry for fw info 



Add a dbgfs entry for an easy way during runtime to
check what FW file was loaded, and get some general
FW-related data.

Signed-off-by: default avatarLiad Kaufman <liad.kaufman@intel.com>
Signed-off-by: default avatarLuca Coelho <luciano.coelho@intel.com>
parent a7c9acc4

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

+32 −0
Original line number Diff line number Diff line
@@ -660,6 +660,36 @@ iwl_dbgfs_bt_force_ant_write(struct iwl_mvm *mvm, char *buf, 
	return ret ?: count;

}



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

				     size_t count, loff_t *ppos)

{

	struct iwl_mvm *mvm = file->private_data;

	char *buff, *pos, *endpos;

	static const size_t bufsz = 1024;

	int ret;



	buff = kmalloc(bufsz, GFP_KERNEL);

	if (!buff)

		return -ENOMEM;



	pos = buff;

	endpos = pos + bufsz;



	pos += scnprintf(pos, endpos - pos, "FW prefix: %s\n",

			 mvm->trans->cfg->fw_name_pre);

	pos += scnprintf(pos, endpos - pos, "FW: %s\n",

			 mvm->fwrt.fw->human_readable);

	pos += scnprintf(pos, endpos - pos, "Device: %s\n",

			 mvm->fwrt.trans->cfg->name);

	pos += scnprintf(pos, endpos - pos, "Bus: %s\n",

			 mvm->fwrt.dev->bus->name);



	ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff);

	kfree(buff);



	return ret;

}



#define PRINT_STATS_LE32(_struct, _memb)				\

			 pos += scnprintf(buf + pos, bufsz - pos,	\

					  fmt_table, #_memb,		\
@@ -1662,6 +1692,7 @@ MVM_DEBUGFS_READ_FILE_OPS(bt_cmd); 
MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64);

MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats);

MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats);

MVM_DEBUGFS_READ_FILE_OPS(fw_ver);

MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10);

MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10);

MVM_DEBUGFS_WRITE_FILE_OPS(bt_tx_prio, 10);
@@ -1843,6 +1874,7 @@ int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir) 
	MVM_DEBUGFS_ADD_FILE(bt_cmd, dbgfs_dir, S_IRUSR);

	MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir,

			     S_IRUSR | S_IWUSR);

	MVM_DEBUGFS_ADD_FILE(fw_ver, mvm->debugfs_dir, S_IRUSR);

	MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, S_IRUSR);

	MVM_DEBUGFS_ADD_FILE(drv_rx_stats, mvm->debugfs_dir, S_IRUSR);

	MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, S_IWUSR);