iwlwifi: mvm: Add debugfs entry to retrieve SAR geographic profile (e6ee0657) · Commits · 戴 / test

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

+50 −0

Original line number	Diff line number	Diff line
		@@ -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,

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