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iwlwifi: mvm: add dbgfs entry for fw info

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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: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
This commit is contained in:
Liad Kaufman 2017-08-16 14:15:08 +03:00 committed by Luca Coelho
parent a7c9acc452
commit 3669cd3192
1 changed files with 32 additions and 0 deletions
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32
drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
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@ -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);