From: Haim Dreyfuss <haim.dreyfuss@xxxxxxxxx>
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@xxxxxxxxx>
Signed-off-by: Luca Coelho <luciano.coelho@xxxxxxxxx>
---
drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c | 50 ++++++++++++++++++++++++
1 file changed, 50 insertions(+)
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
index c2a1aeef74ec..c3ab13ee4097 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
@@ -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);
}
+#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,
size_t count, loff_t *ppos)
{
@@ -1572,6 +1615,9 @@ MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters_macs, 256);
#ifdef CONFIG_PM_SLEEP
MVM_DEBUGFS_READ_WRITE_FILE_OPS(d3_sram, 8);
#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,
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(indirection_tbl, 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",
S_IRUSR | S_IWUSR,
mvm->debugfs_dir,
--
2.11.0
