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iwlwifi: mvm: Add debugfs entry to retrieve SAR geographic profile

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Add a debugfs entry to get a verbose description of the power settings
used in each band with the currently selected SAR geographic profile.

Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
This commit is contained in:
Haim Dreyfuss 2017-05-15 14:27:21 +03:00 committed by Luca Coelho
parent 7fe90e0e3d
commit e6ee06575b
1 changed files with 50 additions and 0 deletions
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50
drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
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@ -336,6 +336,49 @@ static ssize_t iwl_dbgfs_nic_temp_read(struct file *file,
return simple_read_from_buffer(user_buf, count, ppos, buf, pos); return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
} }
#ifdef CONFIG_ACPI
static ssize_t iwl_dbgfs_sar_geo_profile_read(struct file *file,
char __user *user_buf,
size_t count, loff_t *ppos)
{
struct iwl_mvm *mvm = file->private_data;
char buf[256];
int pos = 0;
int bufsz = sizeof(buf);
int tbl_idx;
u8 *value;
if (!iwl_mvm_firmware_running(mvm))
return -EIO;
mutex_lock(&mvm->mutex);
tbl_idx = iwl_mvm_get_sar_geo_profile(mvm);
if (tbl_idx < 0) {
mutex_unlock(&mvm->mutex);
return tbl_idx;
}
if (!tbl_idx) {
pos = scnprintf(buf, bufsz,
"SAR geographic profile disabled\n");
} else {
value = &mvm->geo_profiles[tbl_idx - 1].values[0];
pos += scnprintf(buf + pos, bufsz - pos,
"Use geographic profile %d\n", tbl_idx);
pos += scnprintf(buf + pos, bufsz - pos,
"2.4GHz:\n\tChain A offset: %hhd dBm\n\tChain B offset: %hhd dBm\n\tmax tx power: %hhd dBm\n",
value[1], value[2], value[0]);
pos += scnprintf(buf + pos, bufsz - pos,
"5.2GHz:\n\tChain A offset: %hhd dBm\n\tChain B offset: %hhd dBm\n\tmax tx power: %hhd dBm\n",
value[4], value[5], value[3]);
}
mutex_unlock(&mvm->mutex);
return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}
#endif
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)
{ {
@ -1572,6 +1615,9 @@ MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters_macs, 256);
#ifdef CONFIG_PM_SLEEP #ifdef CONFIG_PM_SLEEP
MVM_DEBUGFS_READ_WRITE_FILE_OPS(d3_sram, 8); MVM_DEBUGFS_READ_WRITE_FILE_OPS(d3_sram, 8);
#endif #endif
#ifdef CONFIG_ACPI
MVM_DEBUGFS_READ_FILE_OPS(sar_geo_profile);
#endif
static ssize_t iwl_dbgfs_mem_read(struct file *file, char __user *user_buf, static ssize_t iwl_dbgfs_mem_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos) size_t count, loff_t *ppos)
@ -1744,6 +1790,10 @@ int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
MVM_DEBUGFS_ADD_FILE(cont_recording, mvm->debugfs_dir, S_IWUSR); MVM_DEBUGFS_ADD_FILE(cont_recording, mvm->debugfs_dir, S_IWUSR);
MVM_DEBUGFS_ADD_FILE(indirection_tbl, mvm->debugfs_dir, S_IWUSR); MVM_DEBUGFS_ADD_FILE(indirection_tbl, mvm->debugfs_dir, S_IWUSR);
MVM_DEBUGFS_ADD_FILE(inject_packet, mvm->debugfs_dir, S_IWUSR); MVM_DEBUGFS_ADD_FILE(inject_packet, mvm->debugfs_dir, S_IWUSR);
#ifdef CONFIG_ACPI
MVM_DEBUGFS_ADD_FILE(sar_geo_profile, dbgfs_dir, S_IRUSR);
#endif
if (!debugfs_create_bool("enable_scan_iteration_notif", if (!debugfs_create_bool("enable_scan_iteration_notif",
S_IRUSR | S_IWUSR, S_IRUSR | S_IWUSR,
mvm->debugfs_dir, mvm->debugfs_dir,