1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /***************************************************************************
3 * Copyright (C) 2010-2012 Hans de Goede <hdegoede@redhat.com> *
4 * *
5 ***************************************************************************/
6
7 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
8
9 #include <linux/bits.h>
10 #include <linux/minmax.h>
11 #include <linux/module.h>
12 #include <linux/pm.h>
13 #include <linux/init.h>
14 #include <linux/regmap.h>
15 #include <linux/slab.h>
16 #include <linux/jiffies.h>
17 #include <linux/platform_device.h>
18 #include <linux/hwmon.h>
19 #include <linux/err.h>
20 #include <linux/mutex.h>
21 #include "sch56xx-common.h"
22
23 #define DRVNAME "sch5627"
24 #define DEVNAME DRVNAME /* We only support one model */
25
26 #define SCH5627_HWMON_ID 0xa5
27 #define SCH5627_COMPANY_ID 0x5c
28 #define SCH5627_PRIMARY_ID 0xa0
29
30 #define SCH5627_REG_BUILD_CODE 0x39
31 #define SCH5627_REG_BUILD_ID 0x3a
32 #define SCH5627_REG_HWMON_ID 0x3c
33 #define SCH5627_REG_HWMON_REV 0x3d
34 #define SCH5627_REG_COMPANY_ID 0x3e
35 #define SCH5627_REG_PRIMARY_ID 0x3f
36 #define SCH5627_REG_CTRL 0x40
37
38 #define SCH5627_CTRL_START BIT(0)
39 #define SCH5627_CTRL_LOCK BIT(1)
40 #define SCH5627_CTRL_VBAT BIT(4)
41
42 #define SCH5627_NO_TEMPS 8
43 #define SCH5627_NO_FANS 4
44 #define SCH5627_NO_IN 5
45
46 static const u16 SCH5627_REG_TEMP_MSB[SCH5627_NO_TEMPS] = {
47 0x2B, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x180, 0x181 };
48 static const u16 SCH5627_REG_TEMP_LSN[SCH5627_NO_TEMPS] = {
49 0xE2, 0xE1, 0xE1, 0xE5, 0xE5, 0xE6, 0x182, 0x182 };
50 static const u16 SCH5627_REG_TEMP_HIGH_NIBBLE[SCH5627_NO_TEMPS] = {
51 0, 0, 1, 1, 0, 0, 0, 1 };
52 static const u16 SCH5627_REG_TEMP_HIGH[SCH5627_NO_TEMPS] = {
53 0x61, 0x57, 0x59, 0x5B, 0x5D, 0x5F, 0x184, 0x186 };
54 static const u16 SCH5627_REG_TEMP_ABS[SCH5627_NO_TEMPS] = {
55 0x9B, 0x96, 0x97, 0x98, 0x99, 0x9A, 0x1A8, 0x1A9 };
56
57 static const u16 SCH5627_REG_FAN[SCH5627_NO_FANS] = {
58 0x2C, 0x2E, 0x30, 0x32 };
59 static const u16 SCH5627_REG_FAN_MIN[SCH5627_NO_FANS] = {
60 0x62, 0x64, 0x66, 0x68 };
61
62 static const u16 SCH5627_REG_PWM_MAP[SCH5627_NO_FANS] = {
63 0xA0, 0xA1, 0xA2, 0xA3 };
64
65 static const u16 SCH5627_REG_IN_MSB[SCH5627_NO_IN] = {
66 0x22, 0x23, 0x24, 0x25, 0x189 };
67 static const u16 SCH5627_REG_IN_LSN[SCH5627_NO_IN] = {
68 0xE4, 0xE4, 0xE3, 0xE3, 0x18A };
69 static const u16 SCH5627_REG_IN_HIGH_NIBBLE[SCH5627_NO_IN] = {
70 1, 0, 1, 0, 1 };
71 static const u16 SCH5627_REG_IN_FACTOR[SCH5627_NO_IN] = {
72 10745, 3660, 9765, 10745, 3660 };
73 static const char * const SCH5627_IN_LABELS[SCH5627_NO_IN] = {
74 "VCC", "VTT", "VBAT", "VTR", "V_IN" };
75
76 struct sch5627_data {
77 struct regmap *regmap;
78 unsigned short addr;
79 u8 control;
80
81 struct mutex update_lock;
82 unsigned long last_battery; /* In jiffies */
83 char temp_valid; /* !=0 if following fields are valid */
84 char fan_valid;
85 char in_valid;
86 unsigned long temp_last_updated; /* In jiffies */
87 unsigned long fan_last_updated;
88 unsigned long in_last_updated;
89 u16 temp[SCH5627_NO_TEMPS];
90 u16 fan[SCH5627_NO_FANS];
91 u16 in[SCH5627_NO_IN];
92 };
93
94 static const struct regmap_range sch5627_tunables_ranges[] = {
95 regmap_reg_range(0x57, 0x57),
96 regmap_reg_range(0x59, 0x59),
97 regmap_reg_range(0x5B, 0x5B),
98 regmap_reg_range(0x5D, 0x5D),
99 regmap_reg_range(0x5F, 0x5F),
100 regmap_reg_range(0x61, 0x69),
101 regmap_reg_range(0x96, 0x9B),
102 regmap_reg_range(0xA0, 0xA3),
103 regmap_reg_range(0x184, 0x184),
104 regmap_reg_range(0x186, 0x186),
105 regmap_reg_range(0x1A8, 0x1A9),
106 };
107
108 static const struct regmap_access_table sch5627_tunables_table = {
109 .yes_ranges = sch5627_tunables_ranges,
110 .n_yes_ranges = ARRAY_SIZE(sch5627_tunables_ranges),
111 };
112
113 static const struct regmap_config sch5627_regmap_config = {
114 .reg_bits = 16,
115 .val_bits = 8,
116 .wr_table = &sch5627_tunables_table,
117 .rd_table = &sch5627_tunables_table,
118 .cache_type = REGCACHE_MAPLE,
119 .use_single_read = true,
120 .use_single_write = true,
121 .can_sleep = true,
122 };
123
sch5627_update_temp(struct sch5627_data * data)124 static int sch5627_update_temp(struct sch5627_data *data)
125 {
126 int ret = 0;
127 int i, val;
128
129 mutex_lock(&data->update_lock);
130
131 /* Cache the values for 1 second */
132 if (time_after(jiffies, data->temp_last_updated + HZ) || !data->temp_valid) {
133 for (i = 0; i < SCH5627_NO_TEMPS; i++) {
134 val = sch56xx_read_virtual_reg12(data->addr, SCH5627_REG_TEMP_MSB[i],
135 SCH5627_REG_TEMP_LSN[i],
136 SCH5627_REG_TEMP_HIGH_NIBBLE[i]);
137 if (unlikely(val < 0)) {
138 ret = val;
139 goto abort;
140 }
141 data->temp[i] = val;
142 }
143 data->temp_last_updated = jiffies;
144 data->temp_valid = 1;
145 }
146 abort:
147 mutex_unlock(&data->update_lock);
148 return ret;
149 }
150
sch5627_update_fan(struct sch5627_data * data)151 static int sch5627_update_fan(struct sch5627_data *data)
152 {
153 int ret = 0;
154 int i, val;
155
156 mutex_lock(&data->update_lock);
157
158 /* Cache the values for 1 second */
159 if (time_after(jiffies, data->fan_last_updated + HZ) || !data->fan_valid) {
160 for (i = 0; i < SCH5627_NO_FANS; i++) {
161 val = sch56xx_read_virtual_reg16(data->addr, SCH5627_REG_FAN[i]);
162 if (unlikely(val < 0)) {
163 ret = val;
164 goto abort;
165 }
166 data->fan[i] = val;
167 }
168 data->fan_last_updated = jiffies;
169 data->fan_valid = 1;
170 }
171 abort:
172 mutex_unlock(&data->update_lock);
173 return ret;
174 }
175
sch5627_update_in(struct sch5627_data * data)176 static int sch5627_update_in(struct sch5627_data *data)
177 {
178 int ret = 0;
179 int i, val;
180
181 mutex_lock(&data->update_lock);
182
183 /* Trigger a Vbat voltage measurement every 5 minutes */
184 if (time_after(jiffies, data->last_battery + 300 * HZ)) {
185 sch56xx_write_virtual_reg(data->addr, SCH5627_REG_CTRL,
186 data->control | SCH5627_CTRL_VBAT);
187 data->last_battery = jiffies;
188 }
189
190 /* Cache the values for 1 second */
191 if (time_after(jiffies, data->in_last_updated + HZ) || !data->in_valid) {
192 for (i = 0; i < SCH5627_NO_IN; i++) {
193 val = sch56xx_read_virtual_reg12(data->addr, SCH5627_REG_IN_MSB[i],
194 SCH5627_REG_IN_LSN[i],
195 SCH5627_REG_IN_HIGH_NIBBLE[i]);
196 if (unlikely(val < 0)) {
197 ret = val;
198 goto abort;
199 }
200 data->in[i] = val;
201 }
202 data->in_last_updated = jiffies;
203 data->in_valid = 1;
204 }
205 abort:
206 mutex_unlock(&data->update_lock);
207 return ret;
208 }
209
reg_to_temp(u16 reg)210 static int reg_to_temp(u16 reg)
211 {
212 return (reg * 625) / 10 - 64000;
213 }
214
reg_to_temp_limit(u8 reg)215 static int reg_to_temp_limit(u8 reg)
216 {
217 return (reg - 64) * 1000;
218 }
219
reg_to_rpm(u16 reg)220 static int reg_to_rpm(u16 reg)
221 {
222 if (reg == 0)
223 return -EIO;
224 if (reg == 0xffff)
225 return 0;
226
227 return 5400540 / reg;
228 }
229
sch5627_temp_limit_to_reg(long value)230 static u8 sch5627_temp_limit_to_reg(long value)
231 {
232 long limit = (value / 1000) + 64;
233
234 return clamp_val(limit, 0, U8_MAX);
235 }
236
sch5627_rpm_to_reg(long value)237 static u16 sch5627_rpm_to_reg(long value)
238 {
239 long pulses;
240
241 if (value <= 0)
242 return U16_MAX - 1;
243
244 pulses = 5400540 / value;
245
246 return clamp_val(pulses, 1, U16_MAX - 1);
247 }
248
sch5627_is_visible(const void * drvdata,enum hwmon_sensor_types type,u32 attr,int channel)249 static umode_t sch5627_is_visible(const void *drvdata, enum hwmon_sensor_types type, u32 attr,
250 int channel)
251 {
252 const struct sch5627_data *data = drvdata;
253
254 /* Once the lock bit is set, the virtual registers become read-only
255 * until the next power cycle.
256 */
257 if (data->control & SCH5627_CTRL_LOCK)
258 return 0444;
259
260 switch (type) {
261 case hwmon_temp:
262 switch (attr) {
263 case hwmon_temp_max:
264 case hwmon_temp_crit:
265 return 0644;
266 default:
267 break;
268 }
269 break;
270 case hwmon_fan:
271 switch (attr) {
272 case hwmon_fan_min:
273 return 0644;
274 default:
275 break;
276 }
277 break;
278 case hwmon_pwm:
279 switch (attr) {
280 case hwmon_pwm_auto_channels_temp:
281 return 0644;
282 default:
283 break;
284 }
285 break;
286 default:
287 break;
288 }
289
290 return 0444;
291 }
292
sch5627_read(struct device * dev,enum hwmon_sensor_types type,u32 attr,int channel,long * val)293 static int sch5627_read(struct device *dev, enum hwmon_sensor_types type, u32 attr, int channel,
294 long *val)
295 {
296 struct sch5627_data *data = dev_get_drvdata(dev);
297 int ret, value;
298
299 switch (type) {
300 case hwmon_temp:
301 switch (attr) {
302 case hwmon_temp_input:
303 ret = sch5627_update_temp(data);
304 if (ret < 0)
305 return ret;
306
307 *val = reg_to_temp(data->temp[channel]);
308 return 0;
309 case hwmon_temp_max:
310 ret = regmap_read(data->regmap, SCH5627_REG_TEMP_ABS[channel], &value);
311 if (ret < 0)
312 return ret;
313
314 *val = reg_to_temp_limit((u8)value);
315 return 0;
316 case hwmon_temp_crit:
317 ret = regmap_read(data->regmap, SCH5627_REG_TEMP_HIGH[channel], &value);
318 if (ret < 0)
319 return ret;
320
321 *val = reg_to_temp_limit((u8)value);
322 return 0;
323 case hwmon_temp_fault:
324 ret = sch5627_update_temp(data);
325 if (ret < 0)
326 return ret;
327
328 *val = (data->temp[channel] == 0);
329 return 0;
330 default:
331 break;
332 }
333 break;
334 case hwmon_fan:
335 switch (attr) {
336 case hwmon_fan_input:
337 ret = sch5627_update_fan(data);
338 if (ret < 0)
339 return ret;
340
341 ret = reg_to_rpm(data->fan[channel]);
342 if (ret < 0)
343 return ret;
344
345 *val = ret;
346 return 0;
347 case hwmon_fan_min:
348 ret = sch56xx_regmap_read16(data->regmap, SCH5627_REG_FAN_MIN[channel],
349 &value);
350 if (ret < 0)
351 return ret;
352
353 ret = reg_to_rpm((u16)value);
354 if (ret < 0)
355 return ret;
356
357 *val = ret;
358 return 0;
359 case hwmon_fan_fault:
360 ret = sch5627_update_fan(data);
361 if (ret < 0)
362 return ret;
363
364 *val = (data->fan[channel] == 0xffff);
365 return 0;
366 default:
367 break;
368 }
369 break;
370 case hwmon_pwm:
371 switch (attr) {
372 case hwmon_pwm_auto_channels_temp:
373 ret = regmap_read(data->regmap, SCH5627_REG_PWM_MAP[channel], &value);
374 if (ret < 0)
375 return ret;
376
377 *val = value;
378 return 0;
379 default:
380 break;
381 }
382 break;
383 case hwmon_in:
384 ret = sch5627_update_in(data);
385 if (ret < 0)
386 return ret;
387 switch (attr) {
388 case hwmon_in_input:
389 *val = DIV_ROUND_CLOSEST(data->in[channel] * SCH5627_REG_IN_FACTOR[channel],
390 10000);
391 return 0;
392 default:
393 break;
394 }
395 break;
396 default:
397 break;
398 }
399
400 return -EOPNOTSUPP;
401 }
402
sch5627_read_string(struct device * dev,enum hwmon_sensor_types type,u32 attr,int channel,const char ** str)403 static int sch5627_read_string(struct device *dev, enum hwmon_sensor_types type, u32 attr,
404 int channel, const char **str)
405 {
406 switch (type) {
407 case hwmon_in:
408 switch (attr) {
409 case hwmon_in_label:
410 *str = SCH5627_IN_LABELS[channel];
411 return 0;
412 default:
413 break;
414 }
415 break;
416 default:
417 break;
418 }
419
420 return -EOPNOTSUPP;
421 }
422
sch5627_write(struct device * dev,enum hwmon_sensor_types type,u32 attr,int channel,long val)423 static int sch5627_write(struct device *dev, enum hwmon_sensor_types type, u32 attr, int channel,
424 long val)
425 {
426 struct sch5627_data *data = dev_get_drvdata(dev);
427 u16 fan;
428 u8 temp;
429
430 switch (type) {
431 case hwmon_temp:
432 temp = sch5627_temp_limit_to_reg(val);
433
434 switch (attr) {
435 case hwmon_temp_max:
436 return regmap_write(data->regmap, SCH5627_REG_TEMP_ABS[channel], temp);
437 case hwmon_temp_crit:
438 return regmap_write(data->regmap, SCH5627_REG_TEMP_HIGH[channel], temp);
439 default:
440 break;
441 }
442 break;
443 case hwmon_fan:
444 switch (attr) {
445 case hwmon_fan_min:
446 fan = sch5627_rpm_to_reg(val);
447
448 return sch56xx_regmap_write16(data->regmap, SCH5627_REG_FAN_MIN[channel],
449 fan);
450 default:
451 break;
452 }
453 break;
454 case hwmon_pwm:
455 switch (attr) {
456 case hwmon_pwm_auto_channels_temp:
457 /* registers are 8 bit wide */
458 if (val > U8_MAX || val < 0)
459 return -EINVAL;
460
461 return regmap_write(data->regmap, SCH5627_REG_PWM_MAP[channel], val);
462 default:
463 break;
464 }
465 break;
466 default:
467 break;
468 }
469
470 return -EOPNOTSUPP;
471 }
472
473 static const struct hwmon_ops sch5627_ops = {
474 .is_visible = sch5627_is_visible,
475 .read = sch5627_read,
476 .read_string = sch5627_read_string,
477 .write = sch5627_write,
478 };
479
480 static const struct hwmon_channel_info * const sch5627_info[] = {
481 HWMON_CHANNEL_INFO(chip, HWMON_C_REGISTER_TZ),
482 HWMON_CHANNEL_INFO(temp,
483 HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_CRIT | HWMON_T_FAULT,
484 HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_CRIT | HWMON_T_FAULT,
485 HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_CRIT | HWMON_T_FAULT,
486 HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_CRIT | HWMON_T_FAULT,
487 HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_CRIT | HWMON_T_FAULT,
488 HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_CRIT | HWMON_T_FAULT,
489 HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_CRIT | HWMON_T_FAULT,
490 HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_CRIT | HWMON_T_FAULT
491 ),
492 HWMON_CHANNEL_INFO(fan,
493 HWMON_F_INPUT | HWMON_F_MIN | HWMON_F_FAULT,
494 HWMON_F_INPUT | HWMON_F_MIN | HWMON_F_FAULT,
495 HWMON_F_INPUT | HWMON_F_MIN | HWMON_F_FAULT,
496 HWMON_F_INPUT | HWMON_F_MIN | HWMON_F_FAULT
497 ),
498 HWMON_CHANNEL_INFO(pwm,
499 HWMON_PWM_AUTO_CHANNELS_TEMP,
500 HWMON_PWM_AUTO_CHANNELS_TEMP,
501 HWMON_PWM_AUTO_CHANNELS_TEMP,
502 HWMON_PWM_AUTO_CHANNELS_TEMP
503 ),
504 HWMON_CHANNEL_INFO(in,
505 HWMON_I_INPUT | HWMON_I_LABEL,
506 HWMON_I_INPUT | HWMON_I_LABEL,
507 HWMON_I_INPUT | HWMON_I_LABEL,
508 HWMON_I_INPUT | HWMON_I_LABEL,
509 HWMON_I_INPUT
510 ),
511 NULL
512 };
513
514 static const struct hwmon_chip_info sch5627_chip_info = {
515 .ops = &sch5627_ops,
516 .info = sch5627_info,
517 };
518
sch5627_probe(struct platform_device * pdev)519 static int sch5627_probe(struct platform_device *pdev)
520 {
521 struct sch5627_data *data;
522 struct device *hwmon_dev;
523 int build_code, build_id, hwmon_rev, val;
524
525 data = devm_kzalloc(&pdev->dev, sizeof(struct sch5627_data),
526 GFP_KERNEL);
527 if (!data)
528 return -ENOMEM;
529
530 data->addr = platform_get_resource(pdev, IORESOURCE_IO, 0)->start;
531 mutex_init(&data->update_lock);
532 platform_set_drvdata(pdev, data);
533
534 val = sch56xx_read_virtual_reg(data->addr, SCH5627_REG_HWMON_ID);
535 if (val < 0)
536 return val;
537
538 if (val != SCH5627_HWMON_ID) {
539 pr_err("invalid %s id: 0x%02X (expected 0x%02X)\n", "hwmon",
540 val, SCH5627_HWMON_ID);
541 return -ENODEV;
542 }
543
544 val = sch56xx_read_virtual_reg(data->addr, SCH5627_REG_COMPANY_ID);
545 if (val < 0)
546 return val;
547
548 if (val != SCH5627_COMPANY_ID) {
549 pr_err("invalid %s id: 0x%02X (expected 0x%02X)\n", "company",
550 val, SCH5627_COMPANY_ID);
551 return -ENODEV;
552 }
553
554 val = sch56xx_read_virtual_reg(data->addr, SCH5627_REG_PRIMARY_ID);
555 if (val < 0)
556 return val;
557
558 if (val != SCH5627_PRIMARY_ID) {
559 pr_err("invalid %s id: 0x%02X (expected 0x%02X)\n", "primary",
560 val, SCH5627_PRIMARY_ID);
561 return -ENODEV;
562 }
563
564 build_code = sch56xx_read_virtual_reg(data->addr,
565 SCH5627_REG_BUILD_CODE);
566 if (build_code < 0)
567 return build_code;
568
569 build_id = sch56xx_read_virtual_reg16(data->addr,
570 SCH5627_REG_BUILD_ID);
571 if (build_id < 0)
572 return build_id;
573
574 hwmon_rev = sch56xx_read_virtual_reg(data->addr,
575 SCH5627_REG_HWMON_REV);
576 if (hwmon_rev < 0)
577 return hwmon_rev;
578
579 val = sch56xx_read_virtual_reg(data->addr, SCH5627_REG_CTRL);
580 if (val < 0)
581 return val;
582
583 data->control = val;
584 if (!(data->control & SCH5627_CTRL_START)) {
585 pr_err("hardware monitoring not enabled\n");
586 return -ENODEV;
587 }
588
589 data->regmap = devm_regmap_init_sch56xx(&pdev->dev, &data->update_lock, data->addr,
590 &sch5627_regmap_config);
591 if (IS_ERR(data->regmap))
592 return PTR_ERR(data->regmap);
593
594 /* Trigger a Vbat voltage measurement, so that we get a valid reading
595 the first time we read Vbat */
596 sch56xx_write_virtual_reg(data->addr, SCH5627_REG_CTRL, data->control | SCH5627_CTRL_VBAT);
597 data->last_battery = jiffies;
598
599 pr_info("found %s chip at %#hx\n", DEVNAME, data->addr);
600 pr_info("firmware build: code 0x%02X, id 0x%04X, hwmon: rev 0x%02X\n",
601 build_code, build_id, hwmon_rev);
602
603 hwmon_dev = devm_hwmon_device_register_with_info(&pdev->dev, DEVNAME, data,
604 &sch5627_chip_info, NULL);
605 if (IS_ERR(hwmon_dev))
606 return PTR_ERR(hwmon_dev);
607
608 /* Note failing to register the watchdog is not a fatal error */
609 sch56xx_watchdog_register(&pdev->dev, data->addr,
610 (build_code << 24) | (build_id << 8) | hwmon_rev,
611 &data->update_lock, 1);
612
613 return 0;
614 }
615
sch5627_suspend(struct device * dev)616 static int sch5627_suspend(struct device *dev)
617 {
618 struct sch5627_data *data = dev_get_drvdata(dev);
619
620 regcache_cache_only(data->regmap, true);
621 regcache_mark_dirty(data->regmap);
622
623 return 0;
624 }
625
sch5627_resume(struct device * dev)626 static int sch5627_resume(struct device *dev)
627 {
628 struct sch5627_data *data = dev_get_drvdata(dev);
629
630 regcache_cache_only(data->regmap, false);
631 /* We must not access the virtual registers when the lock bit is set */
632 if (data->control & SCH5627_CTRL_LOCK)
633 return regcache_drop_region(data->regmap, 0, U16_MAX);
634
635 return regcache_sync(data->regmap);
636 }
637
638 static DEFINE_SIMPLE_DEV_PM_OPS(sch5627_dev_pm_ops, sch5627_suspend, sch5627_resume);
639
640 static const struct platform_device_id sch5627_device_id[] = {
641 {
642 .name = "sch5627",
643 },
644 { }
645 };
646 MODULE_DEVICE_TABLE(platform, sch5627_device_id);
647
648 static struct platform_driver sch5627_driver = {
649 .driver = {
650 .name = DRVNAME,
651 .pm = pm_sleep_ptr(&sch5627_dev_pm_ops),
652 },
653 .probe = sch5627_probe,
654 .id_table = sch5627_device_id,
655 };
656
657 module_platform_driver(sch5627_driver);
658
659 MODULE_DESCRIPTION("SMSC SCH5627 Hardware Monitoring Driver");
660 MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
661 MODULE_LICENSE("GPL");
662