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-rw-r--r--drivers/staging/Kconfig2
-rw-r--r--drivers/staging/Makefile1
-rw-r--r--drivers/staging/pcc-acpi/Kconfig11
-rw-r--r--drivers/staging/pcc-acpi/Makefile1
-rw-r--r--drivers/staging/pcc-acpi/TODO7
-rw-r--r--drivers/staging/pcc-acpi/pcc-acpi.c1111
6 files changed, 0 insertions, 1133 deletions
diff --git a/drivers/staging/Kconfig b/drivers/staging/Kconfig
index c4eff44c9f27..e1654f59eb70 100644
--- a/drivers/staging/Kconfig
+++ b/drivers/staging/Kconfig
@@ -43,8 +43,6 @@ source "drivers/staging/echo/Kconfig"
43 43
44source "drivers/staging/at76_usb/Kconfig" 44source "drivers/staging/at76_usb/Kconfig"
45 45
46source "drivers/staging/pcc-acpi/Kconfig"
47
48source "drivers/staging/poch/Kconfig" 46source "drivers/staging/poch/Kconfig"
49 47
50endif # STAGING 48endif # STAGING
diff --git a/drivers/staging/Makefile b/drivers/staging/Makefile
index 7cb8701d96d4..71c4d53760b8 100644
--- a/drivers/staging/Makefile
+++ b/drivers/staging/Makefile
@@ -13,5 +13,4 @@ obj-$(CONFIG_W35UND) += winbond/
13obj-$(CONFIG_PRISM2_USB) += wlan-ng/ 13obj-$(CONFIG_PRISM2_USB) += wlan-ng/
14obj-$(CONFIG_ECHO) += echo/ 14obj-$(CONFIG_ECHO) += echo/
15obj-$(CONFIG_USB_ATMEL) += at76_usb/ 15obj-$(CONFIG_USB_ATMEL) += at76_usb/
16obj-$(CONFIG_PCC_ACPI) += pcc-acpi/
17obj-$(CONFIG_POCH) += poch/ 16obj-$(CONFIG_POCH) += poch/
diff --git a/drivers/staging/pcc-acpi/Kconfig b/drivers/staging/pcc-acpi/Kconfig
deleted file mode 100644
index 6720d4086baf..000000000000
--- a/drivers/staging/pcc-acpi/Kconfig
+++ /dev/null
@@ -1,11 +0,0 @@
1config PCC_ACPI
2 tristate "Panasonic ACPI Hotkey support"
3 depends on ACPI
4 default n
5 ---help---
6 This driver provides support for Panasonic hotkeys through the
7 ACPI interface. This works for the Panasonic R1 (N variant),
8 R2, R3, T2, W2, and Y2 laptops.
9
10 To compile this driver as a module, choose M here. The module
11 will be called pcc-acpi.
diff --git a/drivers/staging/pcc-acpi/Makefile b/drivers/staging/pcc-acpi/Makefile
deleted file mode 100644
index f93b29edf61e..000000000000
--- a/drivers/staging/pcc-acpi/Makefile
+++ /dev/null
@@ -1 +0,0 @@
1obj-$(CONFIG_PCC_ACPI) += pcc-acpi.o
diff --git a/drivers/staging/pcc-acpi/TODO b/drivers/staging/pcc-acpi/TODO
deleted file mode 100644
index fab240982286..000000000000
--- a/drivers/staging/pcc-acpi/TODO
+++ /dev/null
@@ -1,7 +0,0 @@
1TODO:
2 - Lindent fixes
3 - checkpatch.pl fixes
4 - verify that the acpi interface is correct
5 - remove /proc dependancy if needed (not sure yet.)
6
7Please send any patches for this driver to Greg Kroah-Hartman <greg@kroah.com>
diff --git a/drivers/staging/pcc-acpi/pcc-acpi.c b/drivers/staging/pcc-acpi/pcc-acpi.c
deleted file mode 100644
index 3b34a3e4885a..000000000000
--- a/drivers/staging/pcc-acpi/pcc-acpi.c
+++ /dev/null
@@ -1,1111 +0,0 @@
1/*
2 * Panasonic HotKey and lcd brightness control Extra driver
3 * (C) 2004 Hiroshi Miura <miura@da-cha.org>
4 * (C) 2004 NTT DATA Intellilink Co. http://www.intellilink.co.jp/
5 * (C) YOKOTA Hiroshi <yokota (at) netlab. is. tsukuba. ac. jp>
6 * (C) 2004 David Bronaugh <dbronaugh>
7 *
8 * derived from toshiba_acpi.c, Copyright (C) 2002-2004 John Belmonte
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * publicshed by the Free Software Foundation.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 *
23 *---------------------------------------------------------------------------
24 *
25 * ChangeLog:
26 *
27 * Nov.04, 2006 Hiroshi Miura <miura@da-cha.org>
28 * -v0.9 remove warning about section reference.
29 * remove acpi_os_free
30 * add /proc/acpi/pcc/brightness interface to
31 * allow HAL to access.
32 * merge dbronaugh's enhancement
33 * Aug.17, 2004 David Bronaugh (dbronaugh)
34 * - Added screen brightness setting interface
35 * Thanks to the FreeBSD crew
36 * (acpi_panasonic.c authors)
37 * for the ideas I needed to accomplish it
38 *
39 * May.29, 2006 Hiroshi Miura <miura@da-cha.org>
40 * -v0.8.4 follow to change keyinput structure
41 * thanks Fabian Yamaguchi <fabs@cs.tu-berlin.de>,
42 * Jacob Bower <jacob.bower@ic.ac.uk> and
43 * Hiroshi Yokota for providing solutions.
44 *
45 * Oct.02, 2004 Hiroshi Miura <miura@da-cha.org>
46 * -v0.8.2 merge code of YOKOTA Hiroshi
47 * <yokota@netlab.is.tsukuba.ac.jp>.
48 * Add sticky key mode interface.
49 * Refactoring acpi_pcc_generete_keyinput().
50 *
51 * Sep.15, 2004 Hiroshi Miura <miura@da-cha.org>
52 * -v0.8 Generate key input event on input subsystem.
53 * This is based on yet another driver
54 * written by Ryuta Nakanishi.
55 *
56 * Sep.10, 2004 Hiroshi Miura <miura@da-cha.org>
57 * -v0.7 Change proc interface functions using seq_file
58 * facility as same as other ACPI drivers.
59 *
60 * Aug.28, 2004 Hiroshi Miura <miura@da-cha.org>
61 * -v0.6.4 Fix a silly error with status checking
62 *
63 * Aug.25, 2004 Hiroshi Miura <miura@da-cha.org>
64 * -v0.6.3 replace read_acpi_int by standard
65 * function acpi_evaluate_integer
66 * some clean up and make smart copyright notice.
67 * fix return value of pcc_acpi_get_key()
68 * fix checking return value of acpi_bus_register_driver()
69 *
70 * Aug.22, 2004 David Bronaugh <dbronaugh@linuxboxen.org>
71 * -v0.6.2 Add check on ACPI data (num_sifr)
72 * Coding style cleanups, better error messages/handling
73 * Fixed an off-by-one error in memory allocation
74 *
75 * Aug.21, 2004 David Bronaugh <dbronaugh@linuxboxen.org>
76 * -v0.6.1 Fix a silly error with status checking
77 *
78 * Aug.20, 2004 David Bronaugh <dbronaugh@linuxboxen.org>
79 * - v0.6 Correct brightness controls to reflect reality
80 * based on information gleaned by Hiroshi Miura
81 * and discussions with Hiroshi Miura
82 *
83 * Aug.10, 2004 Hiroshi Miura <miura@da-cha.org>
84 * - v0.5 support LCD brightness control
85 * based on the disclosed information by MEI.
86 *
87 * Jul.25, 2004 Hiroshi Miura <miura@da-cha.org>
88 * - v0.4 first post version
89 * add function to retrive SIFR
90 *
91 * Jul.24, 2004 Hiroshi Miura <miura@da-cha.org>
92 * - v0.3 get proper status of hotkey
93 *
94 * Jul.22, 2004 Hiroshi Miura <miura@da-cha.org>
95 * - v0.2 add HotKey handler
96 *
97 * Jul.17, 2004 Hiroshi Miura <miura@da-cha.org>
98 * - v0.1 start from toshiba_acpi driver written by John Belmonte
99 *
100 */
101
102#define ACPI_PCC_VERSION "0.9+hy"
103
104#include <linux/kernel.h>
105#include <linux/module.h>
106#include <linux/types.h>
107#include <linux/ctype.h>
108#include <linux/init.h>
109#include <linux/input.h>
110#include <linux/proc_fs.h>
111#include <linux/seq_file.h>
112#include <linux/slab.h>
113#include <linux/uaccess.h>
114#include <acpi/acpi_bus.h>
115#include <acpi/acpi_drivers.h>
116
117
118/*************************************************************************
119 * "seq" file template definition.
120 */
121/* "seq" initializer */
122#define SEQ_OPEN_FS(_open_func_name_, _show_func_name_) \
123static int _open_func_name_(struct inode *inode, struct file *file) \
124{ \
125 return single_open(file, _show_func_name_, PDE(inode)->data); \
126}
127
128/*-------------------------------------------------------------------------
129 * "seq" fops template for read-only files.
130 */
131#define SEQ_FILEOPS_R(_open_func_name_) \
132{ \
133 .open = _open_func_name_, \
134 .read = seq_read, \
135 .llseek = seq_lseek, \
136 .release = single_release, \
137}
138
139/*------------------------------------------------------------------------
140 * "seq" fops template for read-write files.
141 */
142#define SEQ_FILEOPS_RW(_open_func_name_, _write_func_name_) \
143{ \
144 .open = _open_func_name_ , \
145 .read = seq_read, \
146 .write = _write_func_name_, \
147 .llseek = seq_lseek, \
148 .release = single_release, \
149}
150
151/*
152 * "seq" file template definition ended.
153 ***************************************************************************
154 */
155#ifndef ACPI_HOTKEY_COMPONENT
156#define ACPI_HOTKEY_COMPONENT 0x10000000
157#endif
158
159#define _COMPONENT ACPI_HOTKEY_COMPONENT
160ACPI_MODULE_NAME("pcc_acpi");
161
162MODULE_AUTHOR("Hiroshi Miura, Hiroshi Yokota");
163MODULE_DESCRIPTION("ACPI HotKey driver for Panasonic Let's Note laptops");
164MODULE_LICENSE("GPL");
165
166#define LOGPREFIX "pcc_acpi: "
167
168/****************************************************
169 * Define ACPI PATHs
170 ****************************************************/
171/* Lets note hotkeys */
172#define METHOD_HKEY_QUERY "HINF"
173#define METHOD_HKEY_SQTY "SQTY"
174#define METHOD_HKEY_SINF "SINF"
175#define METHOD_HKEY_SSET "SSET"
176#define HKEY_NOTIFY 0x80
177
178/* for brightness control */
179#define LCD_MAX_BRIGHTNESS 255
180/* This may be magical -- beware */
181#define LCD_BRIGHTNESS_INCREMENT 17
182/* Registers of SINF */
183#define SINF_LCD_BRIGHTNESS 4
184
185/*******************************************************************
186 *
187 * definitions for /proc/ interface
188 *
189 *******************************************************************/
190#define ACPI_PCC_DRIVER_NAME "pcc_acpi"
191#define ACPI_PCC_DEVICE_NAME "PCCExtra"
192#define ACPI_PCC_CLASS "pcc"
193#define PROC_PCC ACPI_PCC_CLASS
194
195#define ACPI_PCC_INPUT_PHYS "panasonic/hkey0"
196
197/* This is transitional definition */
198#ifndef KEY_BATT
199# define KEY_BATT 227
200#endif
201
202#define PROC_STR_MAX_LEN 8
203
204#define BUS_PCC_HOTKEY BUS_I8042 /*0x1a*/ /* FIXME: BUS_I8042? */
205
206/* Fn+F4/F5 confricts with Shift+F1/F2 */
207/* This hack avoids key number confrict */
208#define PCC_KEYINPUT_MODE (0)
209
210/* LCD_TYPEs: 0 = Normal, 1 = Semi-transparent
211 ENV_STATEs: Normal temp=0x01, High temp=0x81, N/A=0x00
212*/
213enum SINF_BITS { SINF_NUM_BATTERIES = 0,
214 SINF_LCD_TYPE,
215 SINF_AC_MAX_BRIGHT,
216 SINF_AC_MIN_BRIGHT,
217 SINF_AC_CUR_BRIGHT,
218 /* 4 = R1 only handle SINF_AC_CUR_BRIGHT
219 * as SINF_CUR_BRIGHT and don't know AC state */
220 SINF_DC_MAX_BRIGHT,
221 SINF_DC_MIN_BRIGHT,
222 SINF_DC_CUR_BRIGHT,
223 SINF_MUTE,
224 SINF_RESERVED,
225 SINF_ENV_STATE, /* 10 */
226 SINF_STICKY_KEY = 0x80,
227};
228
229static struct acpi_device_id pcc_device_ids[] = {
230 {"MAT0012", 0},
231 {"MAT0013", 0},
232 {"MAT0018", 0},
233 {"MAT0019", 0},
234 {"", 0},
235};
236MODULE_DEVICE_TABLE(acpi, pcc_device_ids);
237
238
239static int __devinit acpi_pcc_hotkey_add(struct acpi_device *device);
240static int __devexit acpi_pcc_hotkey_remove(struct acpi_device *device,
241 int type);
242static int acpi_pcc_hotkey_resume(struct acpi_device *device);
243
244
245static struct acpi_driver acpi_pcc_driver = {
246 .name = ACPI_PCC_DRIVER_NAME,
247 .class = ACPI_PCC_CLASS,
248 .ids = pcc_device_ids,
249 .ops = {
250 .add = acpi_pcc_hotkey_add,
251 .remove = __devexit_p(acpi_pcc_hotkey_remove),
252#ifdef CONFIG_PM
253 /*.suspend = acpi_pcc_hotkey_suspend,*/
254 .resume = acpi_pcc_hotkey_resume,
255#endif
256 },
257};
258
259struct acpi_hotkey {
260 acpi_handle handle;
261 struct acpi_device *device;
262 struct proc_dir_entry *proc_dir_entry;
263 unsigned long num_sifr;
264 unsigned long status;
265 struct input_dev *input_dev;
266 int sticky_mode;
267};
268
269struct pcc_keyinput {
270 struct acpi_hotkey *hotkey;
271 int key_mode;
272};
273
274/* *************************************************************************
275 Hotkey driver core
276 ************************************************************************* */
277/* -------------------------------------------------------------------------
278 method access functions
279 ------------------------------------------------------------------------- */
280static int acpi_pcc_write_sset(struct acpi_hotkey *hotkey, int func, int val)
281{
282 union acpi_object in_objs[] = {
283 { .integer.type = ACPI_TYPE_INTEGER,
284 .integer.value = func, },
285 { .integer.type = ACPI_TYPE_INTEGER,
286 .integer.value = val, },
287 };
288 struct acpi_object_list params = {
289 .count = ARRAY_SIZE(in_objs),
290 .pointer = in_objs,
291 };
292 acpi_status status;
293
294 ACPI_FUNCTION_TRACE("acpi_pcc_write_sset");
295
296 status = acpi_evaluate_object(hotkey->handle, METHOD_HKEY_SSET,
297 &params, NULL);
298
299 return_VALUE(status == AE_OK ? AE_OK : AE_ERROR);
300}
301
302static inline int acpi_pcc_get_sqty(struct acpi_device *device)
303{
304 unsigned long s;
305 acpi_status status;
306
307 ACPI_FUNCTION_TRACE("acpi_pcc_get_sqty");
308
309 status = acpi_evaluate_integer(device->handle, METHOD_HKEY_SQTY,
310 NULL, &s);
311 if (ACPI_SUCCESS(status)) {
312 return_VALUE(s);
313 } else {
314 ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
315 "evaluation error HKEY.SQTY\n"));
316 return_VALUE(-EINVAL);
317 }
318}
319
320static int acpi_pcc_retrieve_biosdata(struct acpi_hotkey *hotkey, u32 *sinf)
321{
322 acpi_status status;
323 struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL};
324 union acpi_object *hkey = NULL;
325 int i;
326
327 ACPI_FUNCTION_TRACE("acpi_pcc_retrieve_biosdata");
328
329 status = acpi_evaluate_object(hotkey->handle, METHOD_HKEY_SINF, 0,
330 &buffer);
331 if (ACPI_FAILURE(status)) {
332 ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
333 "evaluation error HKEY.SINF\n"));
334 status = AE_ERROR;
335 return_VALUE(status);
336 }
337
338 hkey = buffer.pointer;
339 if (!hkey || (hkey->type != ACPI_TYPE_PACKAGE)) {
340 ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid HKEY.SINF\n"));
341 goto free_buffer;
342 }
343
344 if (hotkey->num_sifr < hkey->package.count) {
345 ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
346 "SQTY reports bad SINF length\n"));
347 status = AE_ERROR;
348 goto free_buffer;
349 }
350
351 for (i = 0; i < hkey->package.count; i++) {
352 union acpi_object *element = &(hkey->package.elements[i]);
353 if (likely(element->type == ACPI_TYPE_INTEGER)) {
354 sinf[i] = element->integer.value;
355 } else {
356 ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
357 "Invalid HKEY.SINF data\n"));
358 status = AE_ERROR;
359 break;
360 }
361 }
362 sinf[hkey->package.count] = -1;
363
364 free_buffer:
365 kfree(buffer.pointer);
366 return_VALUE(status == AE_OK ? AE_OK : AE_ERROR);
367}
368
369static int acpi_pcc_read_sinf_field(struct seq_file *seq, int field)
370{
371 struct acpi_hotkey *hotkey = (struct acpi_hotkey *) seq->private;
372 u32 sinf[hotkey->num_sifr + 1];
373
374 ACPI_FUNCTION_TRACE("acpi_pcc_read_sinf_field");
375
376 if (ACPI_SUCCESS(acpi_pcc_retrieve_biosdata(hotkey, sinf)))
377 seq_printf(seq, "%u\n", sinf[field]);
378 else
379 ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
380 "Couldn't retrieve BIOS data\n"));
381
382 return_VALUE(AE_OK);
383}
384
385/* -------------------------------------------------------------------------
386 user interface functions
387 ------------------------------------------------------------------------- */
388/* read methods */
389/* Sinf read methods */
390#define PCC_SINF_READ_F(_name_, FUNC) \
391static int _name_(struct seq_file *seq, void *offset) \
392{ \
393 return_VALUE(ACPI_SUCCESS(acpi_pcc_read_sinf_field(seq, \
394 (FUNC))) \
395 ? 0 : -EINVAL); \
396}
397
398PCC_SINF_READ_F(acpi_pcc_numbatteries_show, SINF_NUM_BATTERIES);
399PCC_SINF_READ_F(acpi_pcc_lcdtype_show, SINF_LCD_TYPE);
400PCC_SINF_READ_F(acpi_pcc_ac_brightness_max_show, SINF_AC_MAX_BRIGHT);
401PCC_SINF_READ_F(acpi_pcc_ac_brightness_min_show, SINF_AC_MIN_BRIGHT);
402PCC_SINF_READ_F(acpi_pcc_ac_brightness_show, SINF_AC_CUR_BRIGHT);
403PCC_SINF_READ_F(acpi_pcc_dc_brightness_max_show, SINF_DC_MAX_BRIGHT);
404PCC_SINF_READ_F(acpi_pcc_dc_brightness_min_show, SINF_DC_MIN_BRIGHT);
405PCC_SINF_READ_F(acpi_pcc_dc_brightness_show, SINF_DC_CUR_BRIGHT);
406PCC_SINF_READ_F(acpi_pcc_brightness_show, SINF_AC_CUR_BRIGHT);
407PCC_SINF_READ_F(acpi_pcc_mute_show, SINF_MUTE);
408
409static int acpi_pcc_sticky_key_show(struct seq_file *seq, void *offset)
410{
411 struct acpi_hotkey *hotkey = seq->private;
412
413 ACPI_FUNCTION_TRACE("acpi_pcc_sticky_key_show");
414
415 if (!hotkey || !hotkey->device)
416 return_VALUE(-EINVAL);
417
418 seq_printf(seq, "%d\n", hotkey->sticky_mode);
419
420 return_VALUE(0);
421}
422
423static int acpi_pcc_keyinput_show(struct seq_file *seq, void *offset)
424{
425 struct acpi_hotkey *hotkey = seq->private;
426 struct input_dev *hotk_input_dev = hotkey->input_dev;
427 struct pcc_keyinput *keyinput = input_get_drvdata(hotk_input_dev);
428
429 ACPI_FUNCTION_TRACE("acpi_pcc_keyinput_show");
430
431 seq_printf(seq, "%d\n", keyinput->key_mode);
432
433 return_VALUE(0);
434}
435
436static int acpi_pcc_version_show(struct seq_file *seq, void *offset)
437{
438 struct acpi_hotkey *hotkey = seq->private;
439
440 ACPI_FUNCTION_TRACE("acpi_pcc_version_show");
441
442 if (!hotkey || !hotkey->device)
443 return_VALUE(-EINVAL);
444
445 seq_printf(seq, "%s version %s\n", ACPI_PCC_DRIVER_NAME,
446 ACPI_PCC_VERSION);
447 seq_printf(seq, "%li functions\n", hotkey->num_sifr);
448
449 return_VALUE(0);
450}
451
452/* write methods */
453static ssize_t acpi_pcc_write_single_flag(struct file *file,
454 const char __user *buffer,
455 size_t count,
456 int sinf_func)
457{
458 struct seq_file *seq = file->private_data;
459 struct acpi_hotkey *hotkey = seq->private;
460 char write_string[PROC_STR_MAX_LEN];
461 u32 val;
462
463 ACPI_FUNCTION_TRACE("acpi_pcc_write_single_flag");
464
465 if (!hotkey || (count > sizeof(write_string) - 1))
466 return_VALUE(-EINVAL);
467
468 if (copy_from_user(write_string, buffer, count))
469 return_VALUE(-EFAULT);
470
471 write_string[count] = '\0';
472
473 if ((sscanf(write_string, "%3i", &val) == 1) &&
474 (val == 0 || val == 1))
475 acpi_pcc_write_sset(hotkey, sinf_func, val);
476
477 return_VALUE(count);
478}
479
480static unsigned long acpi_pcc_write_brightness(struct file *file,
481 const char __user *buffer,
482 size_t count,
483 int min_index, int max_index,
484 int cur_index)
485{
486 struct seq_file *seq = (struct seq_file *)file->private_data;
487 struct acpi_hotkey *hotkey = (struct acpi_hotkey *)seq->private;
488 char write_string[PROC_STR_MAX_LEN];
489 u32 bright;
490 u32 sinf[hotkey->num_sifr + 1];
491
492 ACPI_FUNCTION_TRACE("acpi_pcc_write_brightness");
493
494 if (!hotkey || (count > sizeof(write_string) - 1))
495 return_VALUE(-EINVAL);
496
497 if (copy_from_user(write_string, buffer, count))
498 return_VALUE(-EFAULT);
499
500 write_string[count] = '\0';
501
502 if (ACPI_FAILURE(acpi_pcc_retrieve_biosdata(hotkey, sinf))) {
503 ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
504 "Couldn't retrieve BIOS data\n"));
505 goto end;
506 }
507
508 if ((sscanf(write_string, "%4i", &bright) == 1) &&
509 (bright >= sinf[min_index]) &&
510 (bright <= sinf[max_index]))
511 acpi_pcc_write_sset(hotkey, cur_index, bright);
512
513end:
514 return_VALUE(count);
515}
516
517static ssize_t acpi_pcc_write_ac_brightness(struct file *file,
518 const char __user *buffer,
519 size_t count, loff_t *ppos)
520{
521 return_VALUE(acpi_pcc_write_brightness(file, buffer, count,
522 SINF_AC_MIN_BRIGHT,
523 SINF_AC_MAX_BRIGHT,
524 SINF_AC_CUR_BRIGHT));
525}
526
527static ssize_t acpi_pcc_write_dc_brightness(struct file *file,
528 const char __user *buffer,
529 size_t count, loff_t *ppos)
530{
531 return_VALUE(acpi_pcc_write_brightness(file, buffer, count,
532 SINF_DC_MIN_BRIGHT,
533 SINF_DC_MAX_BRIGHT,
534 SINF_DC_CUR_BRIGHT));
535}
536
537static ssize_t acpi_pcc_write_no_brightness(struct file *file,
538 const char __user *buffer,
539 size_t count, loff_t *ppos)
540{
541 return acpi_pcc_write_brightness(file, buffer, count,
542 SINF_AC_MIN_BRIGHT,
543 SINF_AC_MAX_BRIGHT,
544 SINF_AC_CUR_BRIGHT);
545}
546
547static ssize_t acpi_pcc_write_mute(struct file *file,
548 const char __user *buffer,
549 size_t count, loff_t *ppos)
550{
551 return_VALUE(acpi_pcc_write_single_flag(file, buffer, count,
552 SINF_MUTE));
553}
554
555static ssize_t acpi_pcc_write_sticky_key(struct file *file,
556 const char __user *buffer,
557 size_t count, loff_t *ppos)
558{
559 struct seq_file *seq = (struct seq_file *)file->private_data;
560 struct acpi_hotkey *hotkey = (struct acpi_hotkey *)seq->private;
561 char write_string[PROC_STR_MAX_LEN];
562 int mode;
563
564 ACPI_FUNCTION_TRACE("acpi_pcc_write_sticky_key");
565
566 if (!hotkey || (count > sizeof(write_string) - 1))
567 return_VALUE(-EINVAL);
568
569 if (copy_from_user(write_string, buffer, count))
570 return_VALUE(-EFAULT);
571
572 write_string[count] = '\0';
573
574 if ((sscanf(write_string, "%3i", &mode) == 1) &&
575 (mode == 0 || mode == 1)) {
576 acpi_pcc_write_sset(hotkey, SINF_STICKY_KEY, mode);
577 hotkey->sticky_mode = mode;
578 }
579
580 return_VALUE(count);
581}
582
583static ssize_t acpi_pcc_write_keyinput(struct file *file,
584 const char __user *buffer,
585 size_t count, loff_t *ppos)
586{
587 struct seq_file *seq = (struct seq_file *)file->private_data;
588 struct acpi_hotkey *hotkey = (struct acpi_hotkey *)seq->private;
589 struct pcc_keyinput *keyinput;
590 char write_string[PROC_STR_MAX_LEN];
591 int key_mode;
592
593 ACPI_FUNCTION_TRACE("acpi_pcc_write_keyinput");
594
595 if (!hotkey || (count > (sizeof(write_string) - 1)))
596 return_VALUE(-EINVAL);
597
598 if (copy_from_user(write_string, buffer, count))
599 return_VALUE(-EFAULT);
600
601 write_string[count] = '\0';
602
603 if ((sscanf(write_string, "%4i", &key_mode) == 1) &&
604 (key_mode == 0 || key_mode == 1)) {
605 keyinput = input_get_drvdata(hotkey->input_dev);
606 keyinput->key_mode = key_mode;
607 }
608
609 return_VALUE(count);
610}
611
612/* -------------------------------------------------------------------------
613 hotkey driver
614 ------------------------------------------------------------------------- */
615static void acpi_pcc_generete_keyinput(struct acpi_hotkey *hotkey)
616{
617 struct input_dev *hotk_input_dev = hotkey->input_dev;
618 struct pcc_keyinput *keyinput = input_get_drvdata(hotk_input_dev);
619 int hinf = hotkey->status;
620 int key_code, hkey_num;
621 const int key_map[] = {
622 /* 0 */ -1,
623 /* 1 */ KEY_BRIGHTNESSDOWN,
624 /* 2 */ KEY_BRIGHTNESSUP,
625 /* 3 */ -1, /* vga/lcd switch event is not occur on
626 hotkey driver. */
627 /* 4 */ KEY_MUTE,
628 /* 5 */ KEY_VOLUMEDOWN,
629 /* 6 */ KEY_VOLUMEUP,
630 /* 7 */ KEY_SLEEP,
631 /* 8 */ -1, /* Change CPU boost: do nothing */
632 /* 9 */ KEY_BATT,
633 /* 10 */ KEY_SUSPEND,
634 };
635
636 ACPI_FUNCTION_TRACE("acpi_pcc_generete_keyinput");
637
638 if (keyinput->key_mode == 0)
639 return_VOID;
640
641 hkey_num = hinf & 0xf;
642
643 if ((0 > hkey_num) ||
644 (hkey_num > ARRAY_SIZE(key_map))) {
645 ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
646 "hotkey number out of range: %d\n",
647 hkey_num));
648 return_VOID;
649 }
650
651 key_code = key_map[hkey_num];
652
653 if (key_code != -1) {
654 int pushed = (hinf & 0x80) ? TRUE : FALSE;
655
656 input_report_key(hotk_input_dev, key_code, pushed);
657 input_sync(hotk_input_dev);
658 }
659}
660
661static int acpi_pcc_hotkey_get_key(struct acpi_hotkey *hotkey)
662{
663 unsigned long result;
664 acpi_status status = AE_OK;
665
666 ACPI_FUNCTION_TRACE("acpi_pcc_hotkey_get_key");
667
668 status = acpi_evaluate_integer(hotkey->handle, METHOD_HKEY_QUERY,
669 NULL, &result);
670 if (likely(ACPI_SUCCESS(status)))
671 hotkey->status = result;
672 else
673 ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
674 "error getting hotkey status\n"));
675
676 return_VALUE(status == AE_OK);
677}
678
679void acpi_pcc_hotkey_notify(acpi_handle handle, u32 event, void *data)
680{
681 struct acpi_hotkey *hotkey = (struct acpi_hotkey *) data;
682
683 ACPI_FUNCTION_TRACE("acpi_pcc_hotkey_notify");
684
685 switch (event) {
686 case HKEY_NOTIFY:
687 if (acpi_pcc_hotkey_get_key(hotkey)) {
688 /* generate event like '"pcc HKEY 00000080 00000084"'
689 * when Fn+F4 pressed */
690 acpi_bus_generate_proc_event(hotkey->device, event,
691 hotkey->status);
692 }
693 acpi_pcc_generete_keyinput(hotkey);
694 break;
695 default:
696 /* nothing to do */
697 break;
698 }
699 return_VOID;
700}
701
702/* *************************************************************************
703 FS Interface (/proc)
704 ************************************************************************* */
705/* oepn proc file fs*/
706SEQ_OPEN_FS(acpi_pcc_dc_brightness_open_fs, acpi_pcc_dc_brightness_show);
707SEQ_OPEN_FS(acpi_pcc_numbatteries_open_fs, acpi_pcc_numbatteries_show);
708SEQ_OPEN_FS(acpi_pcc_lcdtype_open_fs, acpi_pcc_lcdtype_show);
709SEQ_OPEN_FS(acpi_pcc_ac_brightness_max_open_fs,
710 acpi_pcc_ac_brightness_max_show);
711SEQ_OPEN_FS(acpi_pcc_ac_brightness_min_open_fs,
712 acpi_pcc_ac_brightness_min_show);
713SEQ_OPEN_FS(acpi_pcc_ac_brightness_open_fs, acpi_pcc_ac_brightness_show);
714SEQ_OPEN_FS(acpi_pcc_dc_brightness_max_open_fs,
715 acpi_pcc_dc_brightness_max_show);
716SEQ_OPEN_FS(acpi_pcc_dc_brightness_min_open_fs,
717 acpi_pcc_dc_brightness_min_show);
718SEQ_OPEN_FS(acpi_pcc_brightness_open_fs, acpi_pcc_brightness_show);
719SEQ_OPEN_FS(acpi_pcc_mute_open_fs, acpi_pcc_mute_show);
720SEQ_OPEN_FS(acpi_pcc_version_open_fs, acpi_pcc_version_show);
721SEQ_OPEN_FS(acpi_pcc_keyinput_open_fs, acpi_pcc_keyinput_show);
722SEQ_OPEN_FS(acpi_pcc_sticky_key_open_fs, acpi_pcc_sticky_key_show);
723
724static struct file_operations acpi_pcc_numbatteries_fops =
725 SEQ_FILEOPS_R(acpi_pcc_numbatteries_open_fs);
726static struct file_operations acpi_pcc_lcdtype_fops =
727 SEQ_FILEOPS_R(acpi_pcc_lcdtype_open_fs);
728static struct file_operations acpi_pcc_mute_fops =
729 SEQ_FILEOPS_RW(acpi_pcc_mute_open_fs, acpi_pcc_write_mute);
730static struct file_operations acpi_pcc_ac_brightness_fops =
731 SEQ_FILEOPS_RW(acpi_pcc_ac_brightness_open_fs,
732 acpi_pcc_write_ac_brightness);
733static struct file_operations acpi_pcc_ac_brightness_max_fops =
734 SEQ_FILEOPS_R(acpi_pcc_ac_brightness_max_open_fs);
735static struct file_operations acpi_pcc_ac_brightness_min_fops =
736 SEQ_FILEOPS_R(acpi_pcc_ac_brightness_min_open_fs);
737static struct file_operations acpi_pcc_dc_brightness_fops =
738 SEQ_FILEOPS_RW(acpi_pcc_dc_brightness_open_fs,
739 acpi_pcc_write_dc_brightness);
740static struct file_operations acpi_pcc_dc_brightness_max_fops =
741 SEQ_FILEOPS_R(acpi_pcc_dc_brightness_max_open_fs);
742static struct file_operations acpi_pcc_dc_brightness_min_fops =
743 SEQ_FILEOPS_R(acpi_pcc_dc_brightness_min_open_fs);
744static struct file_operations acpi_pcc_brightness_fops =
745 SEQ_FILEOPS_RW(acpi_pcc_brightness_open_fs,
746 acpi_pcc_write_no_brightness);
747static struct file_operations acpi_pcc_sticky_key_fops =
748 SEQ_FILEOPS_RW(acpi_pcc_sticky_key_open_fs, acpi_pcc_write_sticky_key);
749static struct file_operations acpi_pcc_keyinput_fops =
750 SEQ_FILEOPS_RW(acpi_pcc_keyinput_open_fs, acpi_pcc_write_keyinput);
751static struct file_operations acpi_pcc_version_fops =
752 SEQ_FILEOPS_R(acpi_pcc_version_open_fs);
753
754struct proc_item {
755 const char *name;
756 struct file_operations *fops;
757 mode_t flag;
758};
759
760/* Note: These functions map *exactly* to the SINF/SSET functions */
761struct proc_item acpi_pcc_proc_items_sifr[] = {
762 { "num_batteries", &acpi_pcc_numbatteries_fops, S_IRUGO },
763 { "lcd_type", &acpi_pcc_lcdtype_fops, S_IRUGO },
764 { "ac_brightness_max", &acpi_pcc_ac_brightness_max_fops, S_IRUGO },
765 { "ac_brightness_min", &acpi_pcc_ac_brightness_min_fops, S_IRUGO },
766 { "ac_brightness", &acpi_pcc_ac_brightness_fops,
767 S_IFREG | S_IRUGO | S_IWUSR },
768 { "dc_brightness_max", &acpi_pcc_dc_brightness_max_fops, S_IRUGO },
769 { "dc_brightness_min", &acpi_pcc_dc_brightness_min_fops, S_IRUGO },
770 { "dc_brightness", &acpi_pcc_dc_brightness_fops,
771 S_IFREG | S_IRUGO | S_IWUSR },
772 { "brightness", &acpi_pcc_brightness_fops, S_IFREG | S_IRUGO | S_IWUSR},
773 { "mute", &acpi_pcc_mute_fops, S_IFREG | S_IRUGO | S_IWUSR },
774 { NULL, NULL, 0 },
775};
776
777struct proc_item acpi_pcc_proc_items[] = {
778 { "sticky_key", &acpi_pcc_sticky_key_fops, S_IFREG | S_IRUGO | S_IWUSR},
779 { "keyinput", &acpi_pcc_keyinput_fops, S_IFREG | S_IRUGO | S_IWUSR },
780 { "version", &acpi_pcc_version_fops, S_IRUGO },
781 { NULL, NULL, 0 },
782};
783
784static int __devinit acpi_pcc_add_device(struct acpi_device *device,
785 struct proc_item *proc_items,
786 int num)
787{
788 struct acpi_hotkey *hotkey = acpi_driver_data(device);
789 struct proc_dir_entry *proc;
790 struct proc_item *item;
791 int i;
792
793 for (item = proc_items, i = 0; item->name && i < num; ++item, ++i) {
794 proc = create_proc_entry(item->name, item->flag,
795 hotkey->proc_dir_entry);
796 if (likely(proc)) {
797 proc->proc_fops = item->fops;
798 proc->data = hotkey;
799 proc->owner = THIS_MODULE;
800 } else {
801 while (i-- > 0) {
802 item--;
803 remove_proc_entry(item->name,
804 hotkey->proc_dir_entry);
805 }
806 return_VALUE(-ENODEV);
807 }
808 }
809 return_VALUE(0);
810}
811
812static int __devinit acpi_pcc_proc_init(struct acpi_device *device)
813{
814 struct proc_dir_entry *acpi_pcc_dir;
815 struct acpi_hotkey *hotkey = acpi_driver_data(device);
816 acpi_status status;
817
818 ACPI_FUNCTION_TRACE("acpi_pcc_proc_init");
819
820 acpi_pcc_dir = proc_mkdir(PROC_PCC, acpi_root_dir);
821
822 if (unlikely(!acpi_pcc_dir)) {
823 ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
824 "Couldn't create dir in /proc\n"));
825 return_VALUE(-ENODEV);
826 }
827
828 acpi_pcc_dir->owner = THIS_MODULE;
829 hotkey->proc_dir_entry = acpi_pcc_dir;
830
831 status = acpi_pcc_add_device(device, acpi_pcc_proc_items_sifr,
832 hotkey->num_sifr);
833 status |= acpi_pcc_add_device(device, acpi_pcc_proc_items,
834 ARRAY_SIZE(acpi_pcc_proc_items));
835 if (unlikely(status)) {
836 remove_proc_entry(PROC_PCC, acpi_root_dir);
837 hotkey->proc_dir_entry = NULL;
838 return_VALUE(-ENODEV);
839 }
840
841 return_VALUE(status);
842}
843
844static void __devexit acpi_pcc_remove_device(struct acpi_device *device,
845 struct proc_item *proc_items,
846 int num)
847{
848 struct acpi_hotkey *hotkey = acpi_driver_data(device);
849 struct proc_item *item;
850 int i;
851
852 for (item = proc_items, i = 0;
853 item->name != NULL && i < num;
854 ++item, ++i) {
855 remove_proc_entry(item->name, hotkey->proc_dir_entry);
856 }
857
858 return_VOID;
859}
860
861/* *************************************************************************
862 Power Management
863 ************************************************************************* */
864#ifdef CONFIG_PM
865static int acpi_pcc_hotkey_resume(struct acpi_device *device)
866{
867 struct acpi_hotkey *hotkey = acpi_driver_data(device);
868 acpi_status status = AE_OK;
869
870 ACPI_FUNCTION_TRACE("acpi_pcc_hotkey_resume");
871
872 if (device == NULL || hotkey == NULL)
873 return_VALUE(-EINVAL);
874
875 if (hotkey->num_sifr != 0) {
876 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Sticky mode restore: %d\n",
877 hotkey->sticky_mode));
878
879 status = acpi_pcc_write_sset(hotkey, SINF_STICKY_KEY,
880 hotkey->sticky_mode);
881 }
882 if (status != AE_OK)
883 return_VALUE(-EINVAL);
884
885 return_VALUE(0);
886}
887#endif
888
889/* *************************************************************************
890 Module init/remove
891 ************************************************************************* */
892/* -------------------------------------------------------------------------
893 input
894 ------------------------------------------------------------------------- */
895static int __devinit acpi_pcc_init_input(struct acpi_hotkey *hotkey)
896{
897 struct input_dev *hotk_input_dev;
898 struct pcc_keyinput *pcc_keyinput;
899 int error;
900
901 ACPI_FUNCTION_TRACE("acpi_pcc_init_input");
902
903 hotk_input_dev = input_allocate_device();
904 if (hotk_input_dev == NULL) {
905 ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
906 "Couldn't allocate input device for hotkey"));
907 goto err_input;
908 }
909
910 pcc_keyinput = kcalloc(1, sizeof(struct pcc_keyinput), GFP_KERNEL);
911
912 if (pcc_keyinput == NULL) {
913 ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
914 "Couldn't allocate mem for private data"));
915 goto err_pcc;
916 }
917
918 hotk_input_dev->evbit[0] = BIT(EV_KEY);
919
920 set_bit(KEY_BRIGHTNESSDOWN, hotk_input_dev->keybit);
921 set_bit(KEY_BRIGHTNESSUP, hotk_input_dev->keybit);
922 set_bit(KEY_MUTE, hotk_input_dev->keybit);
923 set_bit(KEY_VOLUMEDOWN, hotk_input_dev->keybit);
924 set_bit(KEY_VOLUMEUP, hotk_input_dev->keybit);
925 set_bit(KEY_SLEEP, hotk_input_dev->keybit);
926 set_bit(KEY_BATT, hotk_input_dev->keybit);
927 set_bit(KEY_SUSPEND, hotk_input_dev->keybit);
928
929 hotk_input_dev->name = ACPI_PCC_DRIVER_NAME;
930 hotk_input_dev->phys = ACPI_PCC_INPUT_PHYS;
931 hotk_input_dev->id.bustype = BUS_PCC_HOTKEY;
932 hotk_input_dev->id.vendor = 0x0001;
933 hotk_input_dev->id.product = 0x0001;
934 hotk_input_dev->id.version = 0x0100;
935
936 pcc_keyinput->key_mode = PCC_KEYINPUT_MODE;
937 pcc_keyinput->hotkey = hotkey;
938
939 input_set_drvdata(hotk_input_dev, pcc_keyinput);
940
941 hotkey->input_dev = hotk_input_dev;
942
943 error = input_register_device(hotk_input_dev);
944
945 if (error)
946 goto err_pcc;
947
948 return_VALUE(0);
949
950 err_pcc:
951 input_unregister_device(hotk_input_dev);
952 err_input:
953 return_VALUE(-ENOMEM);
954}
955
956static void __devexit acpi_pcc_remove_input(struct acpi_hotkey *hotkey)
957{
958 struct input_dev *hotk_input_dev;
959 struct pcc_keyinput *pcc_keyinput;
960
961 ACPI_FUNCTION_TRACE("acpi_pcc_remove_input");
962
963 if (hotkey == NULL) {
964 ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Can't free memory"));
965 return_VOID;
966 }
967
968 hotk_input_dev = hotkey->input_dev;
969 pcc_keyinput = input_get_drvdata(hotk_input_dev);
970
971 input_unregister_device(hotk_input_dev);
972
973 kfree(pcc_keyinput);
974}
975
976/* -------------------------------------------------------------------------
977 ACPI
978 ------------------------------------------------------------------------- */
979static int __devinit acpi_pcc_hotkey_add(struct acpi_device *device)
980{
981 acpi_status status = AE_OK;
982 struct acpi_hotkey *hotkey = NULL;
983 int sifr_status, num_sifr, result;
984
985 ACPI_FUNCTION_TRACE("acpi_pcc_hotkey_add");
986
987 if (device == NULL)
988 return_VALUE(-EINVAL);
989
990 sifr_status = acpi_pcc_get_sqty(device);
991
992 if (sifr_status > 255) {
993 ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "num_sifr too large"));
994 return_VALUE(-ENODEV);
995 }
996
997 if (sifr_status < 0) {
998 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "not support SQTY"));
999 num_sifr = 0;
1000 } else {
1001 num_sifr = sifr_status;
1002 }
1003
1004 hotkey = kcalloc(1, sizeof(struct acpi_hotkey), GFP_KERNEL);
1005 if (hotkey == NULL) {
1006 ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
1007 "Couldn't allocate mem for hotkey"));
1008 return_VALUE(-ENOMEM);
1009 }
1010
1011 hotkey->device = device;
1012 hotkey->handle = device->handle;
1013 hotkey->num_sifr = num_sifr;
1014 device->driver_data = hotkey;
1015 strcpy(acpi_device_name(device), ACPI_PCC_DEVICE_NAME);
1016 strcpy(acpi_device_class(device), ACPI_PCC_CLASS);
1017
1018 status = acpi_install_notify_handler(hotkey->handle,
1019 ACPI_DEVICE_NOTIFY,
1020 acpi_pcc_hotkey_notify,
1021 hotkey);
1022
1023 if (ACPI_FAILURE(status)) {
1024 ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
1025 "Error installing notify handler\n"));
1026 kfree(hotkey);
1027 return_VALUE(-ENODEV);
1028 }
1029
1030 result = acpi_pcc_init_input(hotkey);
1031 if (result != 0) {
1032 ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
1033 "Error installing keyinput handler\n"));
1034 kfree(hotkey);
1035 return_VALUE(result);
1036 }
1037
1038 return_VALUE(acpi_pcc_proc_init(device));
1039}
1040
1041static int __devexit acpi_pcc_hotkey_remove(struct acpi_device *device,
1042 int type)
1043{
1044 acpi_status status = AE_OK;
1045 struct acpi_hotkey *hotkey = acpi_driver_data(device);
1046
1047 ACPI_FUNCTION_TRACE("acpi_pcc_hotkey_remove");
1048
1049 if (!device || !hotkey)
1050 return_VALUE(-EINVAL);
1051
1052 if (hotkey->proc_dir_entry) {
1053 acpi_pcc_remove_device(device, acpi_pcc_proc_items_sifr,
1054 hotkey->num_sifr);
1055 acpi_pcc_remove_device(device, acpi_pcc_proc_items,
1056 ARRAY_SIZE(acpi_pcc_proc_items));
1057 remove_proc_entry(PROC_PCC, acpi_root_dir);
1058 }
1059
1060 status = acpi_remove_notify_handler(hotkey->handle,
1061 ACPI_DEVICE_NOTIFY, acpi_pcc_hotkey_notify);
1062
1063 if (ACPI_FAILURE(status)) {
1064 ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
1065 "Error removing notify handler\n"));
1066 }
1067
1068 acpi_pcc_remove_input(hotkey);
1069 kfree(hotkey);
1070 return_VALUE(status == AE_OK);
1071}
1072
1073/* *********************************************************************
1074 Module entry point
1075 ********************************************************************* */
1076static int __init acpi_pcc_init(void)
1077{
1078 int result;
1079
1080 ACPI_FUNCTION_TRACE("acpi_pcc_init");
1081
1082 printk(KERN_INFO LOGPREFIX "loading...\n");
1083
1084 if (acpi_disabled) {
1085 printk(KERN_INFO LOGPREFIX "ACPI disabled.\n");
1086 return_VALUE(-ENODEV);
1087 }
1088
1089 result = acpi_bus_register_driver(&acpi_pcc_driver);
1090 if (result < 0) {
1091 ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
1092 "Error registering hotkey driver\n"));
1093 return_VALUE(-ENODEV);
1094 }
1095
1096 return_VALUE(result);
1097}
1098
1099static void __exit acpi_pcc_exit(void)
1100{
1101 ACPI_FUNCTION_TRACE("acpi_pcc_exit");
1102
1103 printk(KERN_INFO LOGPREFIX "unloading...\n");
1104
1105 acpi_bus_unregister_driver(&acpi_pcc_driver);
1106
1107 return_VOID;
1108}
1109
1110module_init(acpi_pcc_init);
1111module_exit(acpi_pcc_exit);
generated by cgit v1.2.2 (git 2.25.0) at 2025-12-16 03:12:20 -0500