Commit | Line | Data |
---|---|---|
d2912cb1 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
26b8f5e1 EM |
2 | /* |
3 | * Base driver for Dialog Semiconductor DA9030/DA9034 | |
4 | * | |
5 | * Copyright (C) 2008 Compulab, Ltd. | |
8b277578 | 6 | * Mike Rapoport <mike@compulab.co.il> |
26b8f5e1 EM |
7 | * |
8 | * Copyright (C) 2006-2008 Marvell International Ltd. | |
8b277578 | 9 | * Eric Miao <eric.miao@marvell.com> |
26b8f5e1 EM |
10 | */ |
11 | ||
12 | #include <linux/kernel.h> | |
13 | #include <linux/module.h> | |
14 | #include <linux/interrupt.h> | |
15 | #include <linux/platform_device.h> | |
16 | #include <linux/i2c.h> | |
17 | #include <linux/mfd/da903x.h> | |
5a0e3ad6 | 18 | #include <linux/slab.h> |
26b8f5e1 EM |
19 | |
20 | #define DA9030_CHIP_ID 0x00 | |
21 | #define DA9030_EVENT_A 0x01 | |
22 | #define DA9030_EVENT_B 0x02 | |
23 | #define DA9030_EVENT_C 0x03 | |
24 | #define DA9030_STATUS 0x04 | |
25 | #define DA9030_IRQ_MASK_A 0x05 | |
26 | #define DA9030_IRQ_MASK_B 0x06 | |
27 | #define DA9030_IRQ_MASK_C 0x07 | |
28 | #define DA9030_SYS_CTRL_A 0x08 | |
29 | #define DA9030_SYS_CTRL_B 0x09 | |
30 | #define DA9030_FAULT_LOG 0x0a | |
31 | ||
32 | #define DA9034_CHIP_ID 0x00 | |
33 | #define DA9034_EVENT_A 0x01 | |
34 | #define DA9034_EVENT_B 0x02 | |
35 | #define DA9034_EVENT_C 0x03 | |
36 | #define DA9034_EVENT_D 0x04 | |
37 | #define DA9034_STATUS_A 0x05 | |
38 | #define DA9034_STATUS_B 0x06 | |
39 | #define DA9034_IRQ_MASK_A 0x07 | |
40 | #define DA9034_IRQ_MASK_B 0x08 | |
41 | #define DA9034_IRQ_MASK_C 0x09 | |
42 | #define DA9034_IRQ_MASK_D 0x0a | |
43 | #define DA9034_SYS_CTRL_A 0x0b | |
44 | #define DA9034_SYS_CTRL_B 0x0c | |
45 | #define DA9034_FAULT_LOG 0x0d | |
46 | ||
47 | struct da903x_chip; | |
48 | ||
49 | struct da903x_chip_ops { | |
50 | int (*init_chip)(struct da903x_chip *); | |
51 | int (*unmask_events)(struct da903x_chip *, unsigned int events); | |
52 | int (*mask_events)(struct da903x_chip *, unsigned int events); | |
53 | int (*read_events)(struct da903x_chip *, unsigned int *events); | |
54 | int (*read_status)(struct da903x_chip *, unsigned int *status); | |
55 | }; | |
56 | ||
57 | struct da903x_chip { | |
58 | struct i2c_client *client; | |
59 | struct device *dev; | |
f83e7d81 | 60 | const struct da903x_chip_ops *ops; |
26b8f5e1 EM |
61 | |
62 | int type; | |
63 | uint32_t events_mask; | |
64 | ||
65 | struct mutex lock; | |
66 | struct work_struct irq_work; | |
67 | ||
68 | struct blocking_notifier_head notifier_list; | |
69 | }; | |
70 | ||
71 | static inline int __da903x_read(struct i2c_client *client, | |
72 | int reg, uint8_t *val) | |
73 | { | |
74 | int ret; | |
75 | ||
76 | ret = i2c_smbus_read_byte_data(client, reg); | |
77 | if (ret < 0) { | |
78 | dev_err(&client->dev, "failed reading at 0x%02x\n", reg); | |
79 | return ret; | |
80 | } | |
81 | ||
82 | *val = (uint8_t)ret; | |
83 | return 0; | |
84 | } | |
85 | ||
86 | static inline int __da903x_reads(struct i2c_client *client, int reg, | |
87 | int len, uint8_t *val) | |
88 | { | |
89 | int ret; | |
90 | ||
91 | ret = i2c_smbus_read_i2c_block_data(client, reg, len, val); | |
92 | if (ret < 0) { | |
93 | dev_err(&client->dev, "failed reading from 0x%02x\n", reg); | |
94 | return ret; | |
95 | } | |
96 | return 0; | |
97 | } | |
98 | ||
99 | static inline int __da903x_write(struct i2c_client *client, | |
100 | int reg, uint8_t val) | |
101 | { | |
102 | int ret; | |
103 | ||
104 | ret = i2c_smbus_write_byte_data(client, reg, val); | |
105 | if (ret < 0) { | |
106 | dev_err(&client->dev, "failed writing 0x%02x to 0x%02x\n", | |
107 | val, reg); | |
108 | return ret; | |
109 | } | |
110 | return 0; | |
111 | } | |
112 | ||
113 | static inline int __da903x_writes(struct i2c_client *client, int reg, | |
114 | int len, uint8_t *val) | |
115 | { | |
116 | int ret; | |
117 | ||
118 | ret = i2c_smbus_write_i2c_block_data(client, reg, len, val); | |
119 | if (ret < 0) { | |
120 | dev_err(&client->dev, "failed writings to 0x%02x\n", reg); | |
121 | return ret; | |
122 | } | |
123 | return 0; | |
124 | } | |
125 | ||
126 | int da903x_register_notifier(struct device *dev, struct notifier_block *nb, | |
127 | unsigned int events) | |
128 | { | |
129 | struct da903x_chip *chip = dev_get_drvdata(dev); | |
130 | ||
131 | chip->ops->unmask_events(chip, events); | |
132 | return blocking_notifier_chain_register(&chip->notifier_list, nb); | |
133 | } | |
134 | EXPORT_SYMBOL_GPL(da903x_register_notifier); | |
135 | ||
136 | int da903x_unregister_notifier(struct device *dev, struct notifier_block *nb, | |
137 | unsigned int events) | |
138 | { | |
139 | struct da903x_chip *chip = dev_get_drvdata(dev); | |
140 | ||
141 | chip->ops->mask_events(chip, events); | |
142 | return blocking_notifier_chain_unregister(&chip->notifier_list, nb); | |
143 | } | |
144 | EXPORT_SYMBOL_GPL(da903x_unregister_notifier); | |
145 | ||
146 | int da903x_write(struct device *dev, int reg, uint8_t val) | |
147 | { | |
148 | return __da903x_write(to_i2c_client(dev), reg, val); | |
149 | } | |
150 | EXPORT_SYMBOL_GPL(da903x_write); | |
151 | ||
856f6fd1 MR |
152 | int da903x_writes(struct device *dev, int reg, int len, uint8_t *val) |
153 | { | |
154 | return __da903x_writes(to_i2c_client(dev), reg, len, val); | |
155 | } | |
156 | EXPORT_SYMBOL_GPL(da903x_writes); | |
157 | ||
26b8f5e1 EM |
158 | int da903x_read(struct device *dev, int reg, uint8_t *val) |
159 | { | |
160 | return __da903x_read(to_i2c_client(dev), reg, val); | |
161 | } | |
162 | EXPORT_SYMBOL_GPL(da903x_read); | |
163 | ||
856f6fd1 MR |
164 | int da903x_reads(struct device *dev, int reg, int len, uint8_t *val) |
165 | { | |
166 | return __da903x_reads(to_i2c_client(dev), reg, len, val); | |
167 | } | |
168 | EXPORT_SYMBOL_GPL(da903x_reads); | |
169 | ||
26b8f5e1 EM |
170 | int da903x_set_bits(struct device *dev, int reg, uint8_t bit_mask) |
171 | { | |
172 | struct da903x_chip *chip = dev_get_drvdata(dev); | |
173 | uint8_t reg_val; | |
174 | int ret = 0; | |
175 | ||
176 | mutex_lock(&chip->lock); | |
177 | ||
178 | ret = __da903x_read(chip->client, reg, ®_val); | |
179 | if (ret) | |
180 | goto out; | |
181 | ||
af65e6ce | 182 | if ((reg_val & bit_mask) != bit_mask) { |
26b8f5e1 EM |
183 | reg_val |= bit_mask; |
184 | ret = __da903x_write(chip->client, reg, reg_val); | |
185 | } | |
186 | out: | |
187 | mutex_unlock(&chip->lock); | |
188 | return ret; | |
189 | } | |
190 | EXPORT_SYMBOL_GPL(da903x_set_bits); | |
191 | ||
192 | int da903x_clr_bits(struct device *dev, int reg, uint8_t bit_mask) | |
193 | { | |
194 | struct da903x_chip *chip = dev_get_drvdata(dev); | |
195 | uint8_t reg_val; | |
196 | int ret = 0; | |
197 | ||
198 | mutex_lock(&chip->lock); | |
199 | ||
200 | ret = __da903x_read(chip->client, reg, ®_val); | |
201 | if (ret) | |
202 | goto out; | |
203 | ||
204 | if (reg_val & bit_mask) { | |
205 | reg_val &= ~bit_mask; | |
206 | ret = __da903x_write(chip->client, reg, reg_val); | |
207 | } | |
208 | out: | |
209 | mutex_unlock(&chip->lock); | |
210 | return ret; | |
211 | } | |
212 | EXPORT_SYMBOL_GPL(da903x_clr_bits); | |
213 | ||
214 | int da903x_update(struct device *dev, int reg, uint8_t val, uint8_t mask) | |
215 | { | |
216 | struct da903x_chip *chip = dev_get_drvdata(dev); | |
217 | uint8_t reg_val; | |
218 | int ret = 0; | |
219 | ||
220 | mutex_lock(&chip->lock); | |
221 | ||
222 | ret = __da903x_read(chip->client, reg, ®_val); | |
223 | if (ret) | |
224 | goto out; | |
225 | ||
226 | if ((reg_val & mask) != val) { | |
227 | reg_val = (reg_val & ~mask) | val; | |
228 | ret = __da903x_write(chip->client, reg, reg_val); | |
229 | } | |
230 | out: | |
231 | mutex_unlock(&chip->lock); | |
232 | return ret; | |
233 | } | |
234 | EXPORT_SYMBOL_GPL(da903x_update); | |
235 | ||
236 | int da903x_query_status(struct device *dev, unsigned int sbits) | |
237 | { | |
238 | struct da903x_chip *chip = dev_get_drvdata(dev); | |
239 | unsigned int status = 0; | |
240 | ||
241 | chip->ops->read_status(chip, &status); | |
242 | return ((status & sbits) == sbits); | |
243 | } | |
244 | EXPORT_SYMBOL(da903x_query_status); | |
245 | ||
f791be49 | 246 | static int da9030_init_chip(struct da903x_chip *chip) |
26b8f5e1 EM |
247 | { |
248 | uint8_t chip_id; | |
249 | int err; | |
250 | ||
251 | err = __da903x_read(chip->client, DA9030_CHIP_ID, &chip_id); | |
252 | if (err) | |
253 | return err; | |
254 | ||
255 | err = __da903x_write(chip->client, DA9030_SYS_CTRL_A, 0xE8); | |
256 | if (err) | |
257 | return err; | |
258 | ||
259 | dev_info(chip->dev, "DA9030 (CHIP ID: 0x%02x) detected\n", chip_id); | |
260 | return 0; | |
261 | } | |
262 | ||
263 | static int da9030_unmask_events(struct da903x_chip *chip, unsigned int events) | |
264 | { | |
265 | uint8_t v[3]; | |
266 | ||
267 | chip->events_mask &= ~events; | |
268 | ||
269 | v[0] = (chip->events_mask & 0xff); | |
270 | v[1] = (chip->events_mask >> 8) & 0xff; | |
271 | v[2] = (chip->events_mask >> 16) & 0xff; | |
272 | ||
273 | return __da903x_writes(chip->client, DA9030_IRQ_MASK_A, 3, v); | |
274 | } | |
275 | ||
276 | static int da9030_mask_events(struct da903x_chip *chip, unsigned int events) | |
277 | { | |
278 | uint8_t v[3]; | |
279 | ||
b1ccbdc4 | 280 | chip->events_mask |= events; |
26b8f5e1 EM |
281 | |
282 | v[0] = (chip->events_mask & 0xff); | |
283 | v[1] = (chip->events_mask >> 8) & 0xff; | |
284 | v[2] = (chip->events_mask >> 16) & 0xff; | |
285 | ||
286 | return __da903x_writes(chip->client, DA9030_IRQ_MASK_A, 3, v); | |
287 | } | |
288 | ||
289 | static int da9030_read_events(struct da903x_chip *chip, unsigned int *events) | |
290 | { | |
291 | uint8_t v[3] = {0, 0, 0}; | |
292 | int ret; | |
293 | ||
294 | ret = __da903x_reads(chip->client, DA9030_EVENT_A, 3, v); | |
295 | if (ret < 0) | |
296 | return ret; | |
297 | ||
298 | *events = (v[2] << 16) | (v[1] << 8) | v[0]; | |
299 | return 0; | |
300 | } | |
301 | ||
302 | static int da9030_read_status(struct da903x_chip *chip, unsigned int *status) | |
303 | { | |
304 | return __da903x_read(chip->client, DA9030_STATUS, (uint8_t *)status); | |
305 | } | |
306 | ||
307 | static int da9034_init_chip(struct da903x_chip *chip) | |
308 | { | |
309 | uint8_t chip_id; | |
310 | int err; | |
311 | ||
312 | err = __da903x_read(chip->client, DA9034_CHIP_ID, &chip_id); | |
313 | if (err) | |
314 | return err; | |
315 | ||
316 | err = __da903x_write(chip->client, DA9034_SYS_CTRL_A, 0xE8); | |
317 | if (err) | |
318 | return err; | |
319 | ||
320 | /* avoid SRAM power off during sleep*/ | |
321 | __da903x_write(chip->client, 0x10, 0x07); | |
322 | __da903x_write(chip->client, 0x11, 0xff); | |
323 | __da903x_write(chip->client, 0x12, 0xff); | |
324 | ||
325 | /* Enable the ONKEY power down functionality */ | |
326 | __da903x_write(chip->client, DA9034_SYS_CTRL_B, 0x20); | |
327 | __da903x_write(chip->client, DA9034_SYS_CTRL_A, 0x60); | |
328 | ||
329 | /* workaround to make LEDs work */ | |
330 | __da903x_write(chip->client, 0x90, 0x01); | |
331 | __da903x_write(chip->client, 0xB0, 0x08); | |
332 | ||
333 | /* make ADTV1 and SDTV1 effective */ | |
334 | __da903x_write(chip->client, 0x20, 0x00); | |
335 | ||
336 | dev_info(chip->dev, "DA9034 (CHIP ID: 0x%02x) detected\n", chip_id); | |
337 | return 0; | |
338 | } | |
339 | ||
340 | static int da9034_unmask_events(struct da903x_chip *chip, unsigned int events) | |
341 | { | |
342 | uint8_t v[4]; | |
343 | ||
344 | chip->events_mask &= ~events; | |
345 | ||
346 | v[0] = (chip->events_mask & 0xff); | |
347 | v[1] = (chip->events_mask >> 8) & 0xff; | |
348 | v[2] = (chip->events_mask >> 16) & 0xff; | |
349 | v[3] = (chip->events_mask >> 24) & 0xff; | |
350 | ||
351 | return __da903x_writes(chip->client, DA9034_IRQ_MASK_A, 4, v); | |
352 | } | |
353 | ||
354 | static int da9034_mask_events(struct da903x_chip *chip, unsigned int events) | |
355 | { | |
356 | uint8_t v[4]; | |
357 | ||
358 | chip->events_mask |= events; | |
359 | ||
360 | v[0] = (chip->events_mask & 0xff); | |
361 | v[1] = (chip->events_mask >> 8) & 0xff; | |
362 | v[2] = (chip->events_mask >> 16) & 0xff; | |
363 | v[3] = (chip->events_mask >> 24) & 0xff; | |
364 | ||
365 | return __da903x_writes(chip->client, DA9034_IRQ_MASK_A, 4, v); | |
366 | } | |
367 | ||
368 | static int da9034_read_events(struct da903x_chip *chip, unsigned int *events) | |
369 | { | |
370 | uint8_t v[4] = {0, 0, 0, 0}; | |
371 | int ret; | |
372 | ||
373 | ret = __da903x_reads(chip->client, DA9034_EVENT_A, 4, v); | |
374 | if (ret < 0) | |
375 | return ret; | |
376 | ||
377 | *events = (v[3] << 24) | (v[2] << 16) | (v[1] << 8) | v[0]; | |
378 | return 0; | |
379 | } | |
380 | ||
381 | static int da9034_read_status(struct da903x_chip *chip, unsigned int *status) | |
382 | { | |
383 | uint8_t v[2] = {0, 0}; | |
384 | int ret = 0; | |
385 | ||
386 | ret = __da903x_reads(chip->client, DA9034_STATUS_A, 2, v); | |
387 | if (ret) | |
388 | return ret; | |
389 | ||
390 | *status = (v[1] << 8) | v[0]; | |
391 | return 0; | |
392 | } | |
393 | ||
394 | static void da903x_irq_work(struct work_struct *work) | |
395 | { | |
396 | struct da903x_chip *chip = | |
397 | container_of(work, struct da903x_chip, irq_work); | |
398 | unsigned int events = 0; | |
399 | ||
400 | while (1) { | |
401 | if (chip->ops->read_events(chip, &events)) | |
402 | break; | |
403 | ||
404 | events &= ~chip->events_mask; | |
405 | if (events == 0) | |
406 | break; | |
407 | ||
408 | blocking_notifier_call_chain( | |
409 | &chip->notifier_list, events, NULL); | |
410 | } | |
411 | enable_irq(chip->client->irq); | |
412 | } | |
413 | ||
fa15ce8a | 414 | static irqreturn_t da903x_irq_handler(int irq, void *data) |
26b8f5e1 EM |
415 | { |
416 | struct da903x_chip *chip = data; | |
417 | ||
418 | disable_irq_nosync(irq); | |
419 | (void)schedule_work(&chip->irq_work); | |
420 | ||
421 | return IRQ_HANDLED; | |
422 | } | |
423 | ||
f83e7d81 | 424 | static const struct da903x_chip_ops da903x_ops[] = { |
26b8f5e1 EM |
425 | [0] = { |
426 | .init_chip = da9030_init_chip, | |
427 | .unmask_events = da9030_unmask_events, | |
428 | .mask_events = da9030_mask_events, | |
429 | .read_events = da9030_read_events, | |
430 | .read_status = da9030_read_status, | |
431 | }, | |
432 | [1] = { | |
433 | .init_chip = da9034_init_chip, | |
434 | .unmask_events = da9034_unmask_events, | |
435 | .mask_events = da9034_mask_events, | |
436 | .read_events = da9034_read_events, | |
437 | .read_status = da9034_read_status, | |
438 | } | |
439 | }; | |
440 | ||
441 | static const struct i2c_device_id da903x_id_table[] = { | |
442 | { "da9030", 0 }, | |
443 | { "da9034", 1 }, | |
444 | { }, | |
445 | }; | |
446 | MODULE_DEVICE_TABLE(i2c, da903x_id_table); | |
447 | ||
3f874b66 | 448 | static int __remove_subdev(struct device *dev, void *unused) |
26b8f5e1 EM |
449 | { |
450 | platform_device_unregister(to_platform_device(dev)); | |
451 | return 0; | |
452 | } | |
453 | ||
3f874b66 | 454 | static int da903x_remove_subdevs(struct da903x_chip *chip) |
26b8f5e1 EM |
455 | { |
456 | return device_for_each_child(chip->dev, NULL, __remove_subdev); | |
457 | } | |
458 | ||
f791be49 | 459 | static int da903x_add_subdevs(struct da903x_chip *chip, |
26b8f5e1 EM |
460 | struct da903x_platform_data *pdata) |
461 | { | |
462 | struct da903x_subdev_info *subdev; | |
463 | struct platform_device *pdev; | |
464 | int i, ret = 0; | |
465 | ||
466 | for (i = 0; i < pdata->num_subdevs; i++) { | |
467 | subdev = &pdata->subdevs[i]; | |
468 | ||
469 | pdev = platform_device_alloc(subdev->name, subdev->id); | |
b59cedef AL |
470 | if (!pdev) { |
471 | ret = -ENOMEM; | |
472 | goto failed; | |
473 | } | |
26b8f5e1 EM |
474 | |
475 | pdev->dev.parent = chip->dev; | |
476 | pdev->dev.platform_data = subdev->platform_data; | |
477 | ||
478 | ret = platform_device_add(pdev); | |
b59cedef AL |
479 | if (ret) { |
480 | platform_device_put(pdev); | |
26b8f5e1 | 481 | goto failed; |
b59cedef | 482 | } |
26b8f5e1 EM |
483 | } |
484 | return 0; | |
485 | ||
486 | failed: | |
487 | da903x_remove_subdevs(chip); | |
488 | return ret; | |
489 | } | |
490 | ||
f791be49 | 491 | static int da903x_probe(struct i2c_client *client, |
26b8f5e1 EM |
492 | const struct i2c_device_id *id) |
493 | { | |
334a41ce | 494 | struct da903x_platform_data *pdata = dev_get_platdata(&client->dev); |
26b8f5e1 EM |
495 | struct da903x_chip *chip; |
496 | unsigned int tmp; | |
497 | int ret; | |
498 | ||
aa4dcf5b JH |
499 | chip = devm_kzalloc(&client->dev, sizeof(struct da903x_chip), |
500 | GFP_KERNEL); | |
26b8f5e1 EM |
501 | if (chip == NULL) |
502 | return -ENOMEM; | |
503 | ||
504 | chip->client = client; | |
505 | chip->dev = &client->dev; | |
506 | chip->ops = &da903x_ops[id->driver_data]; | |
507 | ||
508 | mutex_init(&chip->lock); | |
509 | INIT_WORK(&chip->irq_work, da903x_irq_work); | |
510 | BLOCKING_INIT_NOTIFIER_HEAD(&chip->notifier_list); | |
511 | ||
512 | i2c_set_clientdata(client, chip); | |
513 | ||
514 | ret = chip->ops->init_chip(chip); | |
515 | if (ret) | |
aa4dcf5b | 516 | return ret; |
26b8f5e1 EM |
517 | |
518 | /* mask and clear all IRQs */ | |
519 | chip->events_mask = 0xffffffff; | |
520 | chip->ops->mask_events(chip, chip->events_mask); | |
521 | chip->ops->read_events(chip, &tmp); | |
522 | ||
aa4dcf5b | 523 | ret = devm_request_irq(&client->dev, client->irq, da903x_irq_handler, |
f742b96e | 524 | IRQF_TRIGGER_FALLING, |
26b8f5e1 EM |
525 | "da903x", chip); |
526 | if (ret) { | |
527 | dev_err(&client->dev, "failed to request irq %d\n", | |
528 | client->irq); | |
aa4dcf5b | 529 | return ret; |
26b8f5e1 EM |
530 | } |
531 | ||
5597da29 | 532 | return da903x_add_subdevs(chip, pdata); |
26b8f5e1 EM |
533 | } |
534 | ||
4740f73f | 535 | static int da903x_remove(struct i2c_client *client) |
26b8f5e1 EM |
536 | { |
537 | struct da903x_chip *chip = i2c_get_clientdata(client); | |
538 | ||
539 | da903x_remove_subdevs(chip); | |
26b8f5e1 EM |
540 | return 0; |
541 | } | |
542 | ||
543 | static struct i2c_driver da903x_driver = { | |
544 | .driver = { | |
545 | .name = "da903x", | |
26b8f5e1 EM |
546 | }, |
547 | .probe = da903x_probe, | |
84449216 | 548 | .remove = da903x_remove, |
26b8f5e1 EM |
549 | .id_table = da903x_id_table, |
550 | }; | |
551 | ||
552 | static int __init da903x_init(void) | |
553 | { | |
554 | return i2c_add_driver(&da903x_driver); | |
555 | } | |
2021de87 | 556 | subsys_initcall(da903x_init); |
26b8f5e1 EM |
557 | |
558 | static void __exit da903x_exit(void) | |
559 | { | |
560 | i2c_del_driver(&da903x_driver); | |
561 | } | |
562 | module_exit(da903x_exit); | |
563 | ||
564 | MODULE_DESCRIPTION("PMIC Driver for Dialog Semiconductor DA9034"); | |
8b277578 LJ |
565 | MODULE_AUTHOR("Eric Miao <eric.miao@marvell.com>"); |
566 | MODULE_AUTHOR("Mike Rapoport <mike@compulab.co.il>"); | |
567 | MODULE_LICENSE("GPL v2"); |