hwmon.h

  1/* SPDX-License-Identifier: GPL-2.0-only */
  2/*
  3    hwmon.h - part of lm_sensors, Linux kernel modules for hardware monitoring
  4
  5    This file declares helper functions for the sysfs class "hwmon",
  6    for use by sensors drivers.
  7
  8    Copyright (C) 2005 Mark M. Hoffman <mhoffman@lightlink.com>
  9
 10*/
 11
 12#ifndef _HWMON_H_
 13#define _HWMON_H_
 14
 15#include <linux/bitops.h>
 16
 17struct device;
 18struct attribute_group;
 19
 20enum hwmon_sensor_types {
 21	hwmon_chip,
 22	hwmon_temp,
 23	hwmon_in,
 24	hwmon_curr,
 25	hwmon_power,
 26	hwmon_energy,
 27	hwmon_energy64,
 28	hwmon_humidity,
 29	hwmon_fan,
 30	hwmon_pwm,
 31	hwmon_intrusion,
 32	hwmon_max,
 33};
 34
 35enum hwmon_chip_attributes {
 36	hwmon_chip_temp_reset_history,
 37	hwmon_chip_in_reset_history,
 38	hwmon_chip_curr_reset_history,
 39	hwmon_chip_power_reset_history,
 40	hwmon_chip_register_tz,
 41	hwmon_chip_update_interval,
 42	hwmon_chip_alarms,
 43	hwmon_chip_samples,
 44	hwmon_chip_curr_samples,
 45	hwmon_chip_in_samples,
 46	hwmon_chip_power_samples,
 47	hwmon_chip_temp_samples,
 48	hwmon_chip_beep_enable,
 49	hwmon_chip_pec,
 50};
 51
 52#define HWMON_C_TEMP_RESET_HISTORY	BIT(hwmon_chip_temp_reset_history)
 53#define HWMON_C_IN_RESET_HISTORY	BIT(hwmon_chip_in_reset_history)
 54#define HWMON_C_CURR_RESET_HISTORY	BIT(hwmon_chip_curr_reset_history)
 55#define HWMON_C_POWER_RESET_HISTORY	BIT(hwmon_chip_power_reset_history)
 56#define HWMON_C_REGISTER_TZ		BIT(hwmon_chip_register_tz)
 57#define HWMON_C_UPDATE_INTERVAL		BIT(hwmon_chip_update_interval)
 58#define HWMON_C_ALARMS			BIT(hwmon_chip_alarms)
 59#define HWMON_C_SAMPLES			BIT(hwmon_chip_samples)
 60#define HWMON_C_CURR_SAMPLES		BIT(hwmon_chip_curr_samples)
 61#define HWMON_C_IN_SAMPLES		BIT(hwmon_chip_in_samples)
 62#define HWMON_C_POWER_SAMPLES		BIT(hwmon_chip_power_samples)
 63#define HWMON_C_TEMP_SAMPLES		BIT(hwmon_chip_temp_samples)
 64#define HWMON_C_BEEP_ENABLE		BIT(hwmon_chip_beep_enable)
 65#define HWMON_C_PEC			BIT(hwmon_chip_pec)
 66
 67enum hwmon_temp_attributes {
 68	hwmon_temp_enable,
 69	hwmon_temp_input,
 70	hwmon_temp_type,
 71	hwmon_temp_lcrit,
 72	hwmon_temp_lcrit_hyst,
 73	hwmon_temp_min,
 74	hwmon_temp_min_hyst,
 75	hwmon_temp_max,
 76	hwmon_temp_max_hyst,
 77	hwmon_temp_crit,
 78	hwmon_temp_crit_hyst,
 79	hwmon_temp_emergency,
 80	hwmon_temp_emergency_hyst,
 81	hwmon_temp_alarm,
 82	hwmon_temp_lcrit_alarm,
 83	hwmon_temp_min_alarm,
 84	hwmon_temp_max_alarm,
 85	hwmon_temp_crit_alarm,
 86	hwmon_temp_emergency_alarm,
 87	hwmon_temp_fault,
 88	hwmon_temp_offset,
 89	hwmon_temp_label,
 90	hwmon_temp_lowest,
 91	hwmon_temp_highest,
 92	hwmon_temp_reset_history,
 93	hwmon_temp_rated_min,
 94	hwmon_temp_rated_max,
 95	hwmon_temp_beep,
 96};
 97
 98#define HWMON_T_ENABLE		BIT(hwmon_temp_enable)
 99#define HWMON_T_INPUT		BIT(hwmon_temp_input)
100#define HWMON_T_TYPE		BIT(hwmon_temp_type)
101#define HWMON_T_LCRIT		BIT(hwmon_temp_lcrit)
102#define HWMON_T_LCRIT_HYST	BIT(hwmon_temp_lcrit_hyst)
103#define HWMON_T_MIN		BIT(hwmon_temp_min)
104#define HWMON_T_MIN_HYST	BIT(hwmon_temp_min_hyst)
105#define HWMON_T_MAX		BIT(hwmon_temp_max)
106#define HWMON_T_MAX_HYST	BIT(hwmon_temp_max_hyst)
107#define HWMON_T_CRIT		BIT(hwmon_temp_crit)
108#define HWMON_T_CRIT_HYST	BIT(hwmon_temp_crit_hyst)
109#define HWMON_T_EMERGENCY	BIT(hwmon_temp_emergency)
110#define HWMON_T_EMERGENCY_HYST	BIT(hwmon_temp_emergency_hyst)
111#define HWMON_T_ALARM		BIT(hwmon_temp_alarm)
112#define HWMON_T_MIN_ALARM	BIT(hwmon_temp_min_alarm)
113#define HWMON_T_MAX_ALARM	BIT(hwmon_temp_max_alarm)
114#define HWMON_T_CRIT_ALARM	BIT(hwmon_temp_crit_alarm)
115#define HWMON_T_LCRIT_ALARM	BIT(hwmon_temp_lcrit_alarm)
116#define HWMON_T_EMERGENCY_ALARM	BIT(hwmon_temp_emergency_alarm)
117#define HWMON_T_FAULT		BIT(hwmon_temp_fault)
118#define HWMON_T_OFFSET		BIT(hwmon_temp_offset)
119#define HWMON_T_LABEL		BIT(hwmon_temp_label)
120#define HWMON_T_LOWEST		BIT(hwmon_temp_lowest)
121#define HWMON_T_HIGHEST		BIT(hwmon_temp_highest)
122#define HWMON_T_RESET_HISTORY	BIT(hwmon_temp_reset_history)
123#define HWMON_T_RATED_MIN	BIT(hwmon_temp_rated_min)
124#define HWMON_T_RATED_MAX	BIT(hwmon_temp_rated_max)
125#define HWMON_T_BEEP		BIT(hwmon_temp_beep)
126
127enum hwmon_in_attributes {
128	hwmon_in_enable,
129	hwmon_in_input,
130	hwmon_in_min,
131	hwmon_in_max,
132	hwmon_in_lcrit,
133	hwmon_in_crit,
134	hwmon_in_average,
135	hwmon_in_lowest,
136	hwmon_in_highest,
137	hwmon_in_reset_history,
138	hwmon_in_label,
139	hwmon_in_alarm,
140	hwmon_in_min_alarm,
141	hwmon_in_max_alarm,
142	hwmon_in_lcrit_alarm,
143	hwmon_in_crit_alarm,
144	hwmon_in_rated_min,
145	hwmon_in_rated_max,
146	hwmon_in_beep,
147	hwmon_in_fault,
148};
149
150#define HWMON_I_ENABLE		BIT(hwmon_in_enable)
151#define HWMON_I_INPUT		BIT(hwmon_in_input)
152#define HWMON_I_MIN		BIT(hwmon_in_min)
153#define HWMON_I_MAX		BIT(hwmon_in_max)
154#define HWMON_I_LCRIT		BIT(hwmon_in_lcrit)
155#define HWMON_I_CRIT		BIT(hwmon_in_crit)
156#define HWMON_I_AVERAGE		BIT(hwmon_in_average)
157#define HWMON_I_LOWEST		BIT(hwmon_in_lowest)
158#define HWMON_I_HIGHEST		BIT(hwmon_in_highest)
159#define HWMON_I_RESET_HISTORY	BIT(hwmon_in_reset_history)
160#define HWMON_I_LABEL		BIT(hwmon_in_label)
161#define HWMON_I_ALARM		BIT(hwmon_in_alarm)
162#define HWMON_I_MIN_ALARM	BIT(hwmon_in_min_alarm)
163#define HWMON_I_MAX_ALARM	BIT(hwmon_in_max_alarm)
164#define HWMON_I_LCRIT_ALARM	BIT(hwmon_in_lcrit_alarm)
165#define HWMON_I_CRIT_ALARM	BIT(hwmon_in_crit_alarm)
166#define HWMON_I_RATED_MIN	BIT(hwmon_in_rated_min)
167#define HWMON_I_RATED_MAX	BIT(hwmon_in_rated_max)
168#define HWMON_I_BEEP		BIT(hwmon_in_beep)
169#define HWMON_I_FAULT		BIT(hwmon_in_fault)
170
171enum hwmon_curr_attributes {
172	hwmon_curr_enable,
173	hwmon_curr_input,
174	hwmon_curr_min,
175	hwmon_curr_max,
176	hwmon_curr_lcrit,
177	hwmon_curr_crit,
178	hwmon_curr_average,
179	hwmon_curr_lowest,
180	hwmon_curr_highest,
181	hwmon_curr_reset_history,
182	hwmon_curr_label,
183	hwmon_curr_alarm,
184	hwmon_curr_min_alarm,
185	hwmon_curr_max_alarm,
186	hwmon_curr_lcrit_alarm,
187	hwmon_curr_crit_alarm,
188	hwmon_curr_rated_min,
189	hwmon_curr_rated_max,
190	hwmon_curr_beep,
191};
192
193#define HWMON_C_ENABLE		BIT(hwmon_curr_enable)
194#define HWMON_C_INPUT		BIT(hwmon_curr_input)
195#define HWMON_C_MIN		BIT(hwmon_curr_min)
196#define HWMON_C_MAX		BIT(hwmon_curr_max)
197#define HWMON_C_LCRIT		BIT(hwmon_curr_lcrit)
198#define HWMON_C_CRIT		BIT(hwmon_curr_crit)
199#define HWMON_C_AVERAGE		BIT(hwmon_curr_average)
200#define HWMON_C_LOWEST		BIT(hwmon_curr_lowest)
201#define HWMON_C_HIGHEST		BIT(hwmon_curr_highest)
202#define HWMON_C_RESET_HISTORY	BIT(hwmon_curr_reset_history)
203#define HWMON_C_LABEL		BIT(hwmon_curr_label)
204#define HWMON_C_ALARM		BIT(hwmon_curr_alarm)
205#define HWMON_C_MIN_ALARM	BIT(hwmon_curr_min_alarm)
206#define HWMON_C_MAX_ALARM	BIT(hwmon_curr_max_alarm)
207#define HWMON_C_LCRIT_ALARM	BIT(hwmon_curr_lcrit_alarm)
208#define HWMON_C_CRIT_ALARM	BIT(hwmon_curr_crit_alarm)
209#define HWMON_C_RATED_MIN	BIT(hwmon_curr_rated_min)
210#define HWMON_C_RATED_MAX	BIT(hwmon_curr_rated_max)
211#define HWMON_C_BEEP		BIT(hwmon_curr_beep)
212
213enum hwmon_power_attributes {
214	hwmon_power_enable,
215	hwmon_power_average,
216	hwmon_power_average_interval,
217	hwmon_power_average_interval_max,
218	hwmon_power_average_interval_min,
219	hwmon_power_average_highest,
220	hwmon_power_average_lowest,
221	hwmon_power_average_max,
222	hwmon_power_average_min,
223	hwmon_power_input,
224	hwmon_power_input_highest,
225	hwmon_power_input_lowest,
226	hwmon_power_reset_history,
227	hwmon_power_accuracy,
228	hwmon_power_cap,
229	hwmon_power_cap_hyst,
230	hwmon_power_cap_max,
231	hwmon_power_cap_min,
232	hwmon_power_min,
233	hwmon_power_max,
234	hwmon_power_crit,
235	hwmon_power_lcrit,
236	hwmon_power_label,
237	hwmon_power_alarm,
238	hwmon_power_cap_alarm,
239	hwmon_power_min_alarm,
240	hwmon_power_max_alarm,
241	hwmon_power_lcrit_alarm,
242	hwmon_power_crit_alarm,
243	hwmon_power_rated_min,
244	hwmon_power_rated_max,
245};
246
247#define HWMON_P_ENABLE			BIT(hwmon_power_enable)
248#define HWMON_P_AVERAGE			BIT(hwmon_power_average)
249#define HWMON_P_AVERAGE_INTERVAL	BIT(hwmon_power_average_interval)
250#define HWMON_P_AVERAGE_INTERVAL_MAX	BIT(hwmon_power_average_interval_max)
251#define HWMON_P_AVERAGE_INTERVAL_MIN	BIT(hwmon_power_average_interval_min)
252#define HWMON_P_AVERAGE_HIGHEST		BIT(hwmon_power_average_highest)
253#define HWMON_P_AVERAGE_LOWEST		BIT(hwmon_power_average_lowest)
254#define HWMON_P_AVERAGE_MAX		BIT(hwmon_power_average_max)
255#define HWMON_P_AVERAGE_MIN		BIT(hwmon_power_average_min)
256#define HWMON_P_INPUT			BIT(hwmon_power_input)
257#define HWMON_P_INPUT_HIGHEST		BIT(hwmon_power_input_highest)
258#define HWMON_P_INPUT_LOWEST		BIT(hwmon_power_input_lowest)
259#define HWMON_P_RESET_HISTORY		BIT(hwmon_power_reset_history)
260#define HWMON_P_ACCURACY		BIT(hwmon_power_accuracy)
261#define HWMON_P_CAP			BIT(hwmon_power_cap)
262#define HWMON_P_CAP_HYST		BIT(hwmon_power_cap_hyst)
263#define HWMON_P_CAP_MAX			BIT(hwmon_power_cap_max)
264#define HWMON_P_CAP_MIN			BIT(hwmon_power_cap_min)
265#define HWMON_P_MIN			BIT(hwmon_power_min)
266#define HWMON_P_MAX			BIT(hwmon_power_max)
267#define HWMON_P_LCRIT			BIT(hwmon_power_lcrit)
268#define HWMON_P_CRIT			BIT(hwmon_power_crit)
269#define HWMON_P_LABEL			BIT(hwmon_power_label)
270#define HWMON_P_ALARM			BIT(hwmon_power_alarm)
271#define HWMON_P_CAP_ALARM		BIT(hwmon_power_cap_alarm)
272#define HWMON_P_MIN_ALARM		BIT(hwmon_power_min_alarm)
273#define HWMON_P_MAX_ALARM		BIT(hwmon_power_max_alarm)
274#define HWMON_P_LCRIT_ALARM		BIT(hwmon_power_lcrit_alarm)
275#define HWMON_P_CRIT_ALARM		BIT(hwmon_power_crit_alarm)
276#define HWMON_P_RATED_MIN		BIT(hwmon_power_rated_min)
277#define HWMON_P_RATED_MAX		BIT(hwmon_power_rated_max)
278
279enum hwmon_energy_attributes {
280	hwmon_energy_enable,
281	hwmon_energy_input,
282	hwmon_energy_label,
283};
284
285#define HWMON_E_ENABLE			BIT(hwmon_energy_enable)
286#define HWMON_E_INPUT			BIT(hwmon_energy_input)
287#define HWMON_E_LABEL			BIT(hwmon_energy_label)
288
289enum hwmon_humidity_attributes {
290	hwmon_humidity_enable,
291	hwmon_humidity_input,
292	hwmon_humidity_label,
293	hwmon_humidity_min,
294	hwmon_humidity_min_hyst,
295	hwmon_humidity_max,
296	hwmon_humidity_max_hyst,
297	hwmon_humidity_alarm,
298	hwmon_humidity_fault,
299	hwmon_humidity_rated_min,
300	hwmon_humidity_rated_max,
301	hwmon_humidity_min_alarm,
302	hwmon_humidity_max_alarm,
303};
304
305#define HWMON_H_ENABLE			BIT(hwmon_humidity_enable)
306#define HWMON_H_INPUT			BIT(hwmon_humidity_input)
307#define HWMON_H_LABEL			BIT(hwmon_humidity_label)
308#define HWMON_H_MIN			BIT(hwmon_humidity_min)
309#define HWMON_H_MIN_HYST		BIT(hwmon_humidity_min_hyst)
310#define HWMON_H_MAX			BIT(hwmon_humidity_max)
311#define HWMON_H_MAX_HYST		BIT(hwmon_humidity_max_hyst)
312#define HWMON_H_ALARM			BIT(hwmon_humidity_alarm)
313#define HWMON_H_FAULT			BIT(hwmon_humidity_fault)
314#define HWMON_H_RATED_MIN		BIT(hwmon_humidity_rated_min)
315#define HWMON_H_RATED_MAX		BIT(hwmon_humidity_rated_max)
316#define HWMON_H_MIN_ALARM		BIT(hwmon_humidity_min_alarm)
317#define HWMON_H_MAX_ALARM		BIT(hwmon_humidity_max_alarm)
318
319enum hwmon_fan_attributes {
320	hwmon_fan_enable,
321	hwmon_fan_input,
322	hwmon_fan_label,
323	hwmon_fan_min,
324	hwmon_fan_max,
325	hwmon_fan_div,
326	hwmon_fan_pulses,
327	hwmon_fan_target,
328	hwmon_fan_alarm,
329	hwmon_fan_min_alarm,
330	hwmon_fan_max_alarm,
331	hwmon_fan_fault,
332	hwmon_fan_beep,
333};
334
335#define HWMON_F_ENABLE			BIT(hwmon_fan_enable)
336#define HWMON_F_INPUT			BIT(hwmon_fan_input)
337#define HWMON_F_LABEL			BIT(hwmon_fan_label)
338#define HWMON_F_MIN			BIT(hwmon_fan_min)
339#define HWMON_F_MAX			BIT(hwmon_fan_max)
340#define HWMON_F_DIV			BIT(hwmon_fan_div)
341#define HWMON_F_PULSES			BIT(hwmon_fan_pulses)
342#define HWMON_F_TARGET			BIT(hwmon_fan_target)
343#define HWMON_F_ALARM			BIT(hwmon_fan_alarm)
344#define HWMON_F_MIN_ALARM		BIT(hwmon_fan_min_alarm)
345#define HWMON_F_MAX_ALARM		BIT(hwmon_fan_max_alarm)
346#define HWMON_F_FAULT			BIT(hwmon_fan_fault)
347#define HWMON_F_BEEP			BIT(hwmon_fan_beep)
348
349enum hwmon_pwm_attributes {
350	hwmon_pwm_input,
351	hwmon_pwm_enable,
352	hwmon_pwm_mode,
353	hwmon_pwm_freq,
354	hwmon_pwm_auto_channels_temp,
355};
356
357#define HWMON_PWM_INPUT			BIT(hwmon_pwm_input)
358#define HWMON_PWM_ENABLE		BIT(hwmon_pwm_enable)
359#define HWMON_PWM_MODE			BIT(hwmon_pwm_mode)
360#define HWMON_PWM_FREQ			BIT(hwmon_pwm_freq)
361#define HWMON_PWM_AUTO_CHANNELS_TEMP	BIT(hwmon_pwm_auto_channels_temp)
362
363enum hwmon_intrusion_attributes {
364	hwmon_intrusion_alarm,
365	hwmon_intrusion_beep,
366};
367#define HWMON_INTRUSION_ALARM		BIT(hwmon_intrusion_alarm)
368#define HWMON_INTRUSION_BEEP		BIT(hwmon_intrusion_beep)
369
370/**
371 * struct hwmon_ops - hwmon device operations
372 * @visible:	Static visibility. If non-zero, 'is_visible' is ignored.
373 * @is_visible: Callback to return attribute visibility. Mandatory unless
374 *		'visible' is non-zero.
375 *		Parameters are:
376 *		@const void *drvdata:
377 *			Pointer to driver-private data structure passed
378 *			as argument to hwmon_device_register_with_info().
379 *		@type:	Sensor type
380 *		@attr:	Sensor attribute
381 *		@channel:
382 *			Channel number
383 *		The function returns the file permissions.
384 *		If the return value is 0, no attribute will be created.
385 * @read:	Read callback for data attributes. Mandatory if readable
386 *		data attributes are present.
387 *		Parameters are:
388 *		@dev:	Pointer to hardware monitoring device
389 *		@type:	Sensor type
390 *		@attr:	Sensor attribute
391 *		@channel:
392 *			Channel number
393 *		@val:	Pointer to returned value
394 *		The function returns 0 on success or a negative error number.
395 * @read_string:
396 *		Read callback for string attributes. Mandatory if string
397 *		attributes are present.
398 *		Parameters are:
399 *		@dev:	Pointer to hardware monitoring device
400 *		@type:	Sensor type
401 *		@attr:	Sensor attribute
402 *		@channel:
403 *			Channel number
404 *		@str:	Pointer to returned string
405 *		The function returns 0 on success or a negative error number.
406 * @write:	Write callback for data attributes. Mandatory if writeable
407 *		data attributes are present.
408 *		Parameters are:
409 *		@dev:	Pointer to hardware monitoring device
410 *		@type:	Sensor type
411 *		@attr:	Sensor attribute
412 *		@channel:
413 *			Channel number
414 *		@val:	Value to write
415 *		The function returns 0 on success or a negative error number.
416 */
417struct hwmon_ops {
418	umode_t visible;
419	umode_t (*is_visible)(const void *drvdata, enum hwmon_sensor_types type,
420			      u32 attr, int channel);
421	int (*read)(struct device *dev, enum hwmon_sensor_types type,
422		    u32 attr, int channel, long *val);
423	int (*read_string)(struct device *dev, enum hwmon_sensor_types type,
424		    u32 attr, int channel, const char **str);
425	int (*write)(struct device *dev, enum hwmon_sensor_types type,
426		     u32 attr, int channel, long val);
427};
428
429/**
430 * struct hwmon_channel_info - Channel information
431 * @type:	Channel type.
432 * @config:	Pointer to NULL-terminated list of channel parameters.
433 *		Use for per-channel attributes.
434 */
435struct hwmon_channel_info {
436	enum hwmon_sensor_types type;
437	const u32 *config;
438};
439
440#define HWMON_CHANNEL_INFO(stype, ...)		\
441	(&(const struct hwmon_channel_info) {	\
442		.type = hwmon_##stype,		\
443		.config = (const u32 []) {	\
444			__VA_ARGS__, 0		\
445		}				\
446	})
447
448/**
449 * struct hwmon_chip_info - Chip configuration
450 * @ops:	Pointer to hwmon operations.
451 * @info:	Null-terminated list of channel information.
452 */
453struct hwmon_chip_info {
454	const struct hwmon_ops *ops;
455	const struct hwmon_channel_info * const *info;
456};
457
458/* hwmon_device_register() is deprecated */
459struct device *hwmon_device_register(struct device *dev);
460
461/*
462 * hwmon_device_register_with_groups() and
463 * devm_hwmon_device_register_with_groups() are deprecated.
464 */
465struct device *
466hwmon_device_register_with_groups(struct device *dev, const char *name,
467				  void *drvdata,
468				  const struct attribute_group **groups);
469struct device *
470devm_hwmon_device_register_with_groups(struct device *dev, const char *name,
471				       void *drvdata,
472				       const struct attribute_group **groups);
473struct device *
474hwmon_device_register_with_info(struct device *dev,
475				const char *name, void *drvdata,
476				const struct hwmon_chip_info *info,
477				const struct attribute_group **extra_groups);
478struct device *
479hwmon_device_register_for_thermal(struct device *dev, const char *name,
480				  void *drvdata);
481struct device *
482devm_hwmon_device_register_with_info(struct device *dev,
483				const char *name, void *drvdata,
484				const struct hwmon_chip_info *info,
485				const struct attribute_group **extra_groups);
486
487void hwmon_device_unregister(struct device *dev);
488
489int hwmon_notify_event(struct device *dev, enum hwmon_sensor_types type,
490		       u32 attr, int channel);
491
492char *hwmon_sanitize_name(const char *name);
493char *devm_hwmon_sanitize_name(struct device *dev, const char *name);
494
495void hwmon_lock(struct device *dev);
496void hwmon_unlock(struct device *dev);
497
498/**
499 * hwmon_is_bad_char - Is the char invalid in a hwmon name
500 * @ch: the char to be considered
501 *
502 * hwmon_is_bad_char() can be used to determine if the given character
503 * may not be used in a hwmon name.
504 *
505 * Returns true if the char is invalid, false otherwise.
506 */
507static inline bool hwmon_is_bad_char(const char ch)
508{
509	switch (ch) {
510	case '-':
511	case '*':
512	case ' ':
513	case '\t':
514	case '\n':
515		return true;
516	default:
517		return false;
518	}
519}
520
521#endif