2 * ibm_acpi.c - IBM ThinkPad ACPI Extras
5 * Copyright (C) 2004-2005 Borislav Deianov <borislav@users.sf.net>
6 * Copyright (C) 2006-2007 Henrique de Moraes Holschuh <hmh@hmh.eng.br>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
24 #define IBM_VERSION "0.13"
29 * 2006-11-22 0.13 new maintainer
30 * changelog now lives in git commit history, and will
31 * not be updated further in-file.
33 * 2005-08-17 0.12 fix compilation on 2.6.13-rc kernels
34 * 2005-03-17 0.11 support for 600e, 770x
35 * thanks to Jamie Lentin <lentinj@dial.pipex.com>
36 * support for 770e, G41
37 * G40 and G41 don't have a thinklight
38 * temperatures no longer experimental
39 * experimental brightness control
40 * experimental volume control
41 * experimental fan enable/disable
42 * 2005-01-16 0.10 fix module loading on R30, R31
43 * 2005-01-16 0.9 support for 570, R30, R31
44 * ultrabay support on A22p, A3x
45 * limit arg for cmos, led, beep, drop experimental status
46 * more capable led control on A21e, A22p, T20-22, X20
47 * experimental temperatures and fan speed
48 * experimental embedded controller register dump
49 * mark more functions as __init, drop incorrect __exit
51 * thanks to Henrik Brix Andersen <brix@gentoo.org>
52 * fix parameter passing on module loading
53 * thanks to Rusty Russell <rusty@rustcorp.com.au>
54 * thanks to Jim Radford <radford@blackbean.org>
55 * 2004-11-08 0.8 fix init error case, don't return from a macro
56 * thanks to Chris Wright <chrisw@osdl.org>
57 * 2004-10-23 0.7 fix module loading on A21e, A22p, T20, T21, X20
58 * fix led control on A21e
59 * 2004-10-19 0.6 use acpi_bus_register_driver() to claim HKEY device
60 * 2004-10-18 0.5 thinklight support on A21e, G40, R32, T20, T21, X20
61 * proc file format changed
62 * video_switch command
63 * experimental cmos control
64 * experimental led control
65 * experimental acpi sounds
66 * 2004-09-16 0.4 support for module parameters
67 * hotkey mask can be prefixed by 0x
68 * video output switching
69 * video expansion control
70 * ultrabay eject support
71 * removed lcd brightness/on/off control, didn't work
72 * 2004-08-17 0.3 support for R40
73 * lcd off, brightness control
75 * 2004-08-14 0.2 support for T series, X20
76 * bluetooth enable/disable
77 * hotkey events disabled by default
78 * removed fan control, currently useless
79 * 2004-08-09 0.1 initial release, support for X series
82 #include "thinkpad_acpi.h"
84 MODULE_AUTHOR("Borislav Deianov, Henrique de Moraes Holschuh");
85 MODULE_DESCRIPTION(IBM_DESC
);
86 MODULE_VERSION(IBM_VERSION
);
87 MODULE_LICENSE("GPL");
89 /* Please remove this in year 2009 */
90 MODULE_ALIAS("ibm_acpi");
92 #define __unused __attribute__ ((unused))
94 /****************************************************************************
95 ****************************************************************************
97 * ACPI Helpers and device model
99 ****************************************************************************
100 ****************************************************************************/
102 /*************************************************************************
106 static acpi_handle root_handle
= NULL
;
108 #define IBM_HANDLE(object, parent, paths...) \
109 static acpi_handle object##_handle; \
110 static acpi_handle *object##_parent = &parent##_handle; \
111 static char *object##_path; \
112 static char *object##_paths[] = { paths }
114 IBM_HANDLE(ec
, root
, "\\_SB.PCI0.ISA.EC0", /* 240, 240x */
115 "\\_SB.PCI.ISA.EC", /* 570 */
116 "\\_SB.PCI0.ISA0.EC0", /* 600e/x, 770e, 770x */
117 "\\_SB.PCI0.ISA.EC", /* A21e, A2xm/p, T20-22, X20-21 */
118 "\\_SB.PCI0.AD4S.EC0", /* i1400, R30 */
119 "\\_SB.PCI0.ICH3.EC0", /* R31 */
120 "\\_SB.PCI0.LPC.EC", /* all others */
123 IBM_HANDLE(ecrd
, ec
, "ECRD"); /* 570 */
124 IBM_HANDLE(ecwr
, ec
, "ECWR"); /* 570 */
127 /*************************************************************************
131 IBM_HANDLE(cmos
, root
, "\\UCMS", /* R50, R50e, R50p, R51, T4x, X31, X40 */
132 "\\CMOS", /* A3x, G4x, R32, T23, T30, X22-24, X30 */
133 "\\CMS", /* R40, R40e */
136 IBM_HANDLE(hkey
, ec
, "\\_SB.HKEY", /* 600e/x, 770e, 770x */
137 "^HKEY", /* R30, R31 */
138 "HKEY", /* all others */
142 /*************************************************************************
146 static int acpi_evalf(acpi_handle handle
,
147 void *res
, char *method
, char *fmt
, ...)
150 struct acpi_object_list params
;
151 union acpi_object in_objs
[IBM_MAX_ACPI_ARGS
];
152 struct acpi_buffer result
, *resultp
;
153 union acpi_object out_obj
;
161 printk(IBM_ERR
"acpi_evalf() called with empty format\n");
174 params
.pointer
= &in_objs
[0];
181 in_objs
[params
.count
].integer
.value
= va_arg(ap
, int);
182 in_objs
[params
.count
++].type
= ACPI_TYPE_INTEGER
;
184 /* add more types as needed */
186 printk(IBM_ERR
"acpi_evalf() called "
187 "with invalid format character '%c'\n", c
);
193 if (res_type
!= 'v') {
194 result
.length
= sizeof(out_obj
);
195 result
.pointer
= &out_obj
;
200 status
= acpi_evaluate_object(handle
, method
, ¶ms
, resultp
);
205 *(int *)res
= out_obj
.integer
.value
;
206 success
= status
== AE_OK
&& out_obj
.type
== ACPI_TYPE_INTEGER
;
209 success
= status
== AE_OK
;
211 /* add more types as needed */
213 printk(IBM_ERR
"acpi_evalf() called "
214 "with invalid format character '%c'\n", res_type
);
218 if (!success
&& !quiet
)
219 printk(IBM_ERR
"acpi_evalf(%s, %s, ...) failed: %d\n",
220 method
, fmt0
, status
);
225 static void __unused
acpi_print_int(acpi_handle handle
, char *method
)
229 if (acpi_evalf(handle
, &i
, method
, "d"))
230 printk(IBM_INFO
"%s = 0x%x\n", method
, i
);
232 printk(IBM_ERR
"error calling %s\n", method
);
235 static int acpi_ec_read(int i
, u8
* p
)
240 if (!acpi_evalf(ecrd_handle
, &v
, NULL
, "dd", i
))
244 if (ec_read(i
, p
) < 0)
251 static int acpi_ec_write(int i
, u8 v
)
254 if (!acpi_evalf(ecwr_handle
, NULL
, NULL
, "vdd", i
, v
))
257 if (ec_write(i
, v
) < 0)
264 static int _sta(acpi_handle handle
)
268 if (!handle
|| !acpi_evalf(handle
, &status
, "_STA", "d"))
274 /*************************************************************************
278 static void __init
ibm_handle_init(char *name
,
279 acpi_handle
* handle
, acpi_handle parent
,
280 char **paths
, int num_paths
, char **path
)
285 for (i
= 0; i
< num_paths
; i
++) {
286 status
= acpi_get_handle(parent
, paths
[i
], handle
);
287 if (ACPI_SUCCESS(status
)) {
296 static void dispatch_notify(acpi_handle handle
, u32 event
, void *data
)
298 struct ibm_struct
*ibm
= data
;
300 if (!ibm
|| !ibm
->notify
)
303 ibm
->notify(ibm
, event
);
306 static int __init
setup_notify(struct ibm_struct
*ibm
)
314 ret
= acpi_bus_get_device(*ibm
->handle
, &ibm
->device
);
316 printk(IBM_ERR
"%s device not present\n", ibm
->name
);
320 acpi_driver_data(ibm
->device
) = ibm
;
321 sprintf(acpi_device_class(ibm
->device
), "%s/%s", IBM_NAME
, ibm
->name
);
323 status
= acpi_install_notify_handler(*ibm
->handle
, ibm
->type
,
324 dispatch_notify
, ibm
);
325 if (ACPI_FAILURE(status
)) {
326 if (status
== AE_ALREADY_EXISTS
) {
327 printk(IBM_NOTICE
"another device driver is already handling %s events\n",
330 printk(IBM_ERR
"acpi_install_notify_handler(%s) failed: %d\n",
335 ibm
->notify_installed
= 1;
339 static int __init
ibm_device_add(struct acpi_device
*device
)
344 static int __init
register_ibmacpi_subdriver(struct ibm_struct
*ibm
)
348 ibm
->driver
= kzalloc(sizeof(struct acpi_driver
), GFP_KERNEL
);
350 printk(IBM_ERR
"kmalloc(ibm->driver) failed\n");
354 sprintf(ibm
->driver
->name
, "%s_%s", IBM_NAME
, ibm
->name
);
355 ibm
->driver
->ids
= ibm
->hid
;
356 ibm
->driver
->ops
.add
= &ibm_device_add
;
358 ret
= acpi_bus_register_driver(ibm
->driver
);
360 printk(IBM_ERR
"acpi_bus_register_driver(%s) failed: %d\n",
369 /****************************************************************************
370 ****************************************************************************
374 ****************************************************************************
375 ****************************************************************************/
377 static int dispatch_read(char *page
, char **start
, off_t off
, int count
,
378 int *eof
, void *data
)
380 struct ibm_struct
*ibm
= data
;
383 if (!ibm
|| !ibm
->read
)
386 len
= ibm
->read(page
);
390 if (len
<= off
+ count
)
402 static int dispatch_write(struct file
*file
, const char __user
* userbuf
,
403 unsigned long count
, void *data
)
405 struct ibm_struct
*ibm
= data
;
409 if (!ibm
|| !ibm
->write
)
412 kernbuf
= kmalloc(count
+ 2, GFP_KERNEL
);
416 if (copy_from_user(kernbuf
, userbuf
, count
)) {
422 strcat(kernbuf
, ",");
423 ret
= ibm
->write(kernbuf
);
432 static char *next_cmd(char **cmds
)
437 while ((end
= strchr(start
, ',')) && end
== start
)
449 /****************************************************************************
450 ****************************************************************************
454 ****************************************************************************
455 ****************************************************************************/
457 /*************************************************************************
458 * ibm-acpi init subdriver
461 static int ibm_acpi_driver_init(void)
463 printk(IBM_INFO
"%s v%s\n", IBM_DESC
, IBM_VERSION
);
464 printk(IBM_INFO
"%s\n", IBM_URL
);
466 if (ibm_thinkpad_ec_found
)
467 printk(IBM_INFO
"ThinkPad EC firmware %s\n",
468 ibm_thinkpad_ec_found
);
473 static int ibm_acpi_driver_read(char *p
)
477 len
+= sprintf(p
+ len
, "driver:\t\t%s\n", IBM_DESC
);
478 len
+= sprintf(p
+ len
, "version:\t%s\n", IBM_VERSION
);
483 /*************************************************************************
487 static int hotkey_supported
;
488 static int hotkey_mask_supported
;
489 static int hotkey_orig_status
;
490 static int hotkey_orig_mask
;
492 static int hotkey_init(void)
494 /* hotkey not supported on 570 */
495 hotkey_supported
= hkey_handle
!= NULL
;
497 if (hotkey_supported
) {
498 /* mask not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p,
499 A30, R30, R31, T20-22, X20-21, X22-24 */
500 hotkey_mask_supported
=
501 acpi_evalf(hkey_handle
, NULL
, "DHKN", "qv");
503 if (!hotkey_get(&hotkey_orig_status
, &hotkey_orig_mask
))
510 static void hotkey_exit(void)
512 if (hotkey_supported
)
513 hotkey_set(hotkey_orig_status
, hotkey_orig_mask
);
516 static void hotkey_notify(struct ibm_struct
*ibm
, u32 event
)
520 if (acpi_evalf(hkey_handle
, &hkey
, "MHKP", "d"))
521 acpi_bus_generate_event(ibm
->device
, event
, hkey
);
523 printk(IBM_ERR
"unknown hotkey event %d\n", event
);
524 acpi_bus_generate_event(ibm
->device
, event
, 0);
528 static int hotkey_get(int *status
, int *mask
)
530 if (!acpi_evalf(hkey_handle
, status
, "DHKC", "d"))
533 if (hotkey_mask_supported
)
534 if (!acpi_evalf(hkey_handle
, mask
, "DHKN", "d"))
540 static int hotkey_set(int status
, int mask
)
544 if (!acpi_evalf(hkey_handle
, NULL
, "MHKC", "vd", status
))
547 if (hotkey_mask_supported
)
548 for (i
= 0; i
< 32; i
++) {
549 int bit
= ((1 << i
) & mask
) != 0;
550 if (!acpi_evalf(hkey_handle
,
551 NULL
, "MHKM", "vdd", i
+ 1, bit
))
558 static int hotkey_read(char *p
)
563 if (!hotkey_supported
) {
564 len
+= sprintf(p
+ len
, "status:\t\tnot supported\n");
568 if (!hotkey_get(&status
, &mask
))
571 len
+= sprintf(p
+ len
, "status:\t\t%s\n", enabled(status
, 0));
572 if (hotkey_mask_supported
) {
573 len
+= sprintf(p
+ len
, "mask:\t\t0x%04x\n", mask
);
574 len
+= sprintf(p
+ len
,
575 "commands:\tenable, disable, reset, <mask>\n");
577 len
+= sprintf(p
+ len
, "mask:\t\tnot supported\n");
578 len
+= sprintf(p
+ len
, "commands:\tenable, disable, reset\n");
584 static int hotkey_write(char *buf
)
590 if (!hotkey_supported
)
593 if (!hotkey_get(&status
, &mask
))
596 while ((cmd
= next_cmd(&buf
))) {
597 if (strlencmp(cmd
, "enable") == 0) {
599 } else if (strlencmp(cmd
, "disable") == 0) {
601 } else if (strlencmp(cmd
, "reset") == 0) {
602 status
= hotkey_orig_status
;
603 mask
= hotkey_orig_mask
;
604 } else if (sscanf(cmd
, "0x%x", &mask
) == 1) {
606 } else if (sscanf(cmd
, "%x", &mask
) == 1) {
613 if (do_cmd
&& !hotkey_set(status
, mask
))
619 /*************************************************************************
620 * Bluetooth subdriver
623 static int bluetooth_supported
;
625 static int bluetooth_init(void)
627 /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p,
628 G4x, R30, R31, R40e, R50e, T20-22, X20-21 */
629 bluetooth_supported
= hkey_handle
&&
630 acpi_evalf(hkey_handle
, NULL
, "GBDC", "qv");
635 static int bluetooth_status(void)
639 if (!bluetooth_supported
||
640 !acpi_evalf(hkey_handle
, &status
, "GBDC", "d"))
646 static int bluetooth_read(char *p
)
649 int status
= bluetooth_status();
651 if (!bluetooth_supported
)
652 len
+= sprintf(p
+ len
, "status:\t\tnot supported\n");
653 else if (!(status
& 1))
654 len
+= sprintf(p
+ len
, "status:\t\tnot installed\n");
656 len
+= sprintf(p
+ len
, "status:\t\t%s\n", enabled(status
, 1));
657 len
+= sprintf(p
+ len
, "commands:\tenable, disable\n");
663 static int bluetooth_write(char *buf
)
665 int status
= bluetooth_status();
669 if (!bluetooth_supported
)
672 while ((cmd
= next_cmd(&buf
))) {
673 if (strlencmp(cmd
, "enable") == 0) {
675 } else if (strlencmp(cmd
, "disable") == 0) {
682 if (do_cmd
&& !acpi_evalf(hkey_handle
, NULL
, "SBDC", "vd", status
))
688 /*************************************************************************
692 static int wan_supported
;
694 static int wan_init(void)
696 wan_supported
= hkey_handle
&&
697 acpi_evalf(hkey_handle
, NULL
, "GWAN", "qv");
702 static int wan_status(void)
706 if (!wan_supported
|| !acpi_evalf(hkey_handle
, &status
, "GWAN", "d"))
712 static int wan_read(char *p
)
715 int status
= wan_status();
718 len
+= sprintf(p
+ len
, "status:\t\tnot supported\n");
719 else if (!(status
& 1))
720 len
+= sprintf(p
+ len
, "status:\t\tnot installed\n");
722 len
+= sprintf(p
+ len
, "status:\t\t%s\n", enabled(status
, 1));
723 len
+= sprintf(p
+ len
, "commands:\tenable, disable\n");
729 static int wan_write(char *buf
)
731 int status
= wan_status();
738 while ((cmd
= next_cmd(&buf
))) {
739 if (strlencmp(cmd
, "enable") == 0) {
741 } else if (strlencmp(cmd
, "disable") == 0) {
748 if (do_cmd
&& !acpi_evalf(hkey_handle
, NULL
, "SWAN", "vd", status
))
754 /*************************************************************************
758 static enum video_access_mode video_supported
;
759 static int video_orig_autosw
;
761 IBM_HANDLE(vid
, root
, "\\_SB.PCI.AGP.VGA", /* 570 */
762 "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */
763 "\\_SB.PCI0.VID0", /* 770e */
764 "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */
765 "\\_SB.PCI0.AGP.VID", /* all others */
768 IBM_HANDLE(vid2
, root
, "\\_SB.PCI0.AGPB.VID"); /* G41 */
770 static int video_init(void)
774 if (vid2_handle
&& acpi_evalf(NULL
, &ivga
, "\\IVGA", "d") && ivga
)
775 /* G41, assume IVGA doesn't change */
776 vid_handle
= vid2_handle
;
779 /* video switching not supported on R30, R31 */
780 video_supported
= IBMACPI_VIDEO_NONE
;
781 else if (acpi_evalf(vid_handle
, &video_orig_autosw
, "SWIT", "qd"))
783 video_supported
= IBMACPI_VIDEO_570
;
784 else if (acpi_evalf(vid_handle
, &video_orig_autosw
, "^VADL", "qd"))
785 /* 600e/x, 770e, 770x */
786 video_supported
= IBMACPI_VIDEO_770
;
789 video_supported
= IBMACPI_VIDEO_NEW
;
794 static void video_exit(void)
796 acpi_evalf(vid_handle
, NULL
, "_DOS", "vd", video_orig_autosw
);
799 static int video_status(void)
804 if (video_supported
== IBMACPI_VIDEO_570
) {
805 if (acpi_evalf(NULL
, &i
, "\\_SB.PHS", "dd", 0x87))
807 } else if (video_supported
== IBMACPI_VIDEO_770
) {
808 if (acpi_evalf(NULL
, &i
, "\\VCDL", "d"))
810 if (acpi_evalf(NULL
, &i
, "\\VCDC", "d"))
812 } else if (video_supported
== IBMACPI_VIDEO_NEW
) {
813 acpi_evalf(NULL
, NULL
, "\\VUPS", "vd", 1);
814 if (acpi_evalf(NULL
, &i
, "\\VCDC", "d"))
817 acpi_evalf(NULL
, NULL
, "\\VUPS", "vd", 0);
818 if (acpi_evalf(NULL
, &i
, "\\VCDL", "d"))
820 if (acpi_evalf(NULL
, &i
, "\\VCDD", "d"))
827 static int video_autosw(void)
831 if (video_supported
== IBMACPI_VIDEO_570
)
832 acpi_evalf(vid_handle
, &autosw
, "SWIT", "d");
833 else if (video_supported
== IBMACPI_VIDEO_770
||
834 video_supported
== IBMACPI_VIDEO_NEW
)
835 acpi_evalf(vid_handle
, &autosw
, "^VDEE", "d");
840 static int video_switch(void)
842 int autosw
= video_autosw();
845 if (!acpi_evalf(vid_handle
, NULL
, "_DOS", "vd", 1))
847 ret
= video_supported
== IBMACPI_VIDEO_570
?
848 acpi_evalf(ec_handle
, NULL
, "_Q16", "v") :
849 acpi_evalf(vid_handle
, NULL
, "VSWT", "v");
850 acpi_evalf(vid_handle
, NULL
, "_DOS", "vd", autosw
);
855 static int video_expand(void)
857 if (video_supported
== IBMACPI_VIDEO_570
)
858 return acpi_evalf(ec_handle
, NULL
, "_Q17", "v");
859 else if (video_supported
== IBMACPI_VIDEO_770
)
860 return acpi_evalf(vid_handle
, NULL
, "VEXP", "v");
862 return acpi_evalf(NULL
, NULL
, "\\VEXP", "v");
865 static int video_switch2(int status
)
869 if (video_supported
== IBMACPI_VIDEO_570
) {
870 ret
= acpi_evalf(NULL
, NULL
,
871 "\\_SB.PHS2", "vdd", 0x8b, status
| 0x80);
872 } else if (video_supported
== IBMACPI_VIDEO_770
) {
873 int autosw
= video_autosw();
874 if (!acpi_evalf(vid_handle
, NULL
, "_DOS", "vd", 1))
877 ret
= acpi_evalf(vid_handle
, NULL
,
878 "ASWT", "vdd", status
* 0x100, 0);
880 acpi_evalf(vid_handle
, NULL
, "_DOS", "vd", autosw
);
882 ret
= acpi_evalf(NULL
, NULL
, "\\VUPS", "vd", 0x80) &&
883 acpi_evalf(NULL
, NULL
, "\\VSDS", "vdd", status
, 1);
889 static int video_read(char *p
)
891 int status
= video_status();
892 int autosw
= video_autosw();
895 if (!video_supported
) {
896 len
+= sprintf(p
+ len
, "status:\t\tnot supported\n");
900 len
+= sprintf(p
+ len
, "status:\t\tsupported\n");
901 len
+= sprintf(p
+ len
, "lcd:\t\t%s\n", enabled(status
, 0));
902 len
+= sprintf(p
+ len
, "crt:\t\t%s\n", enabled(status
, 1));
903 if (video_supported
== IBMACPI_VIDEO_NEW
)
904 len
+= sprintf(p
+ len
, "dvi:\t\t%s\n", enabled(status
, 3));
905 len
+= sprintf(p
+ len
, "auto:\t\t%s\n", enabled(autosw
, 0));
906 len
+= sprintf(p
+ len
, "commands:\tlcd_enable, lcd_disable\n");
907 len
+= sprintf(p
+ len
, "commands:\tcrt_enable, crt_disable\n");
908 if (video_supported
== IBMACPI_VIDEO_NEW
)
909 len
+= sprintf(p
+ len
, "commands:\tdvi_enable, dvi_disable\n");
910 len
+= sprintf(p
+ len
, "commands:\tauto_enable, auto_disable\n");
911 len
+= sprintf(p
+ len
, "commands:\tvideo_switch, expand_toggle\n");
916 static int video_write(char *buf
)
919 int enable
, disable
, status
;
921 if (!video_supported
)
924 enable
= disable
= 0;
926 while ((cmd
= next_cmd(&buf
))) {
927 if (strlencmp(cmd
, "lcd_enable") == 0) {
929 } else if (strlencmp(cmd
, "lcd_disable") == 0) {
931 } else if (strlencmp(cmd
, "crt_enable") == 0) {
933 } else if (strlencmp(cmd
, "crt_disable") == 0) {
935 } else if (video_supported
== IBMACPI_VIDEO_NEW
&&
936 strlencmp(cmd
, "dvi_enable") == 0) {
938 } else if (video_supported
== IBMACPI_VIDEO_NEW
&&
939 strlencmp(cmd
, "dvi_disable") == 0) {
941 } else if (strlencmp(cmd
, "auto_enable") == 0) {
942 if (!acpi_evalf(vid_handle
, NULL
, "_DOS", "vd", 1))
944 } else if (strlencmp(cmd
, "auto_disable") == 0) {
945 if (!acpi_evalf(vid_handle
, NULL
, "_DOS", "vd", 0))
947 } else if (strlencmp(cmd
, "video_switch") == 0) {
950 } else if (strlencmp(cmd
, "expand_toggle") == 0) {
957 if (enable
|| disable
) {
958 status
= (video_status() & 0x0f & ~disable
) | enable
;
959 if (!video_switch2(status
))
966 /*************************************************************************
967 * Light (thinklight) subdriver
970 static int light_supported
;
971 static int light_status_supported
;
973 IBM_HANDLE(lght
, root
, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */
974 IBM_HANDLE(ledb
, ec
, "LEDB"); /* G4x */
976 static int light_init(void)
978 /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */
979 light_supported
= (cmos_handle
|| lght_handle
) && !ledb_handle
;
982 /* light status not supported on
983 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */
984 light_status_supported
= acpi_evalf(ec_handle
, NULL
,
990 static int light_read(char *p
)
995 if (!light_supported
) {
996 len
+= sprintf(p
+ len
, "status:\t\tnot supported\n");
997 } else if (!light_status_supported
) {
998 len
+= sprintf(p
+ len
, "status:\t\tunknown\n");
999 len
+= sprintf(p
+ len
, "commands:\ton, off\n");
1001 if (!acpi_evalf(ec_handle
, &status
, "KBLT", "d"))
1003 len
+= sprintf(p
+ len
, "status:\t\t%s\n", onoff(status
, 0));
1004 len
+= sprintf(p
+ len
, "commands:\ton, off\n");
1010 static int light_write(char *buf
)
1012 int cmos_cmd
, lght_cmd
;
1016 if (!light_supported
)
1019 while ((cmd
= next_cmd(&buf
))) {
1020 if (strlencmp(cmd
, "on") == 0) {
1023 } else if (strlencmp(cmd
, "off") == 0) {
1029 success
= cmos_handle
?
1030 acpi_evalf(cmos_handle
, NULL
, NULL
, "vd", cmos_cmd
) :
1031 acpi_evalf(lght_handle
, NULL
, NULL
, "vd", lght_cmd
);
1039 /*************************************************************************
1043 /* don't list other alternatives as we install a notify handler on the 570 */
1044 IBM_HANDLE(pci
, root
, "\\_SB.PCI"); /* 570 */
1046 #ifdef CONFIG_THINKPAD_ACPI_DOCK
1048 IBM_HANDLE(dock
, root
, "\\_SB.GDCK", /* X30, X31, X40 */
1049 "\\_SB.PCI0.DOCK", /* 600e/x,770e,770x,A2xm/p,T20-22,X20-21 */
1050 "\\_SB.PCI0.PCI1.DOCK", /* all others */
1051 "\\_SB.PCI.ISA.SLCE", /* 570 */
1052 ); /* A21e,G4x,R30,R31,R32,R40,R40e,R50e */
1054 #define dock_docked() (_sta(dock_handle) & 1)
1056 static void dock_notify(struct ibm_struct
*ibm
, u32 event
)
1058 int docked
= dock_docked();
1059 int pci
= ibm
->hid
&& strstr(ibm
->hid
, IBM_PCI_HID
);
1061 if (event
== 1 && !pci
) /* 570 */
1062 acpi_bus_generate_event(ibm
->device
, event
, 1); /* button */
1063 else if (event
== 1 && pci
) /* 570 */
1064 acpi_bus_generate_event(ibm
->device
, event
, 3); /* dock */
1065 else if (event
== 3 && docked
)
1066 acpi_bus_generate_event(ibm
->device
, event
, 1); /* button */
1067 else if (event
== 3 && !docked
)
1068 acpi_bus_generate_event(ibm
->device
, event
, 2); /* undock */
1069 else if (event
== 0 && docked
)
1070 acpi_bus_generate_event(ibm
->device
, event
, 3); /* dock */
1072 printk(IBM_ERR
"unknown dock event %d, status %d\n",
1073 event
, _sta(dock_handle
));
1074 acpi_bus_generate_event(ibm
->device
, event
, 0); /* unknown */
1078 static int dock_read(char *p
)
1081 int docked
= dock_docked();
1084 len
+= sprintf(p
+ len
, "status:\t\tnot supported\n");
1086 len
+= sprintf(p
+ len
, "status:\t\tundocked\n");
1088 len
+= sprintf(p
+ len
, "status:\t\tdocked\n");
1089 len
+= sprintf(p
+ len
, "commands:\tdock, undock\n");
1095 static int dock_write(char *buf
)
1102 while ((cmd
= next_cmd(&buf
))) {
1103 if (strlencmp(cmd
, "undock") == 0) {
1104 if (!acpi_evalf(dock_handle
, NULL
, "_DCK", "vd", 0) ||
1105 !acpi_evalf(dock_handle
, NULL
, "_EJ0", "vd", 1))
1107 } else if (strlencmp(cmd
, "dock") == 0) {
1108 if (!acpi_evalf(dock_handle
, NULL
, "_DCK", "vd", 1))
1117 #endif /* CONFIG_THINKPAD_ACPI_DOCK */
1119 /*************************************************************************
1123 #ifdef CONFIG_THINKPAD_ACPI_BAY
1124 static int bay_status_supported
;
1125 static int bay_status2_supported
;
1126 static int bay_eject_supported
;
1127 static int bay_eject2_supported
;
1129 IBM_HANDLE(bay
, root
, "\\_SB.PCI.IDE.SECN.MAST", /* 570 */
1130 "\\_SB.PCI0.IDE0.IDES.IDSM", /* 600e/x, 770e, 770x */
1131 "\\_SB.PCI0.SATA.SCND.MSTR", /* T60, X60, Z60 */
1132 "\\_SB.PCI0.IDE0.SCND.MSTR", /* all others */
1133 ); /* A21e, R30, R31 */
1134 IBM_HANDLE(bay_ej
, bay
, "_EJ3", /* 600e/x, A2xm/p, A3x */
1135 "_EJ0", /* all others */
1136 ); /* 570,A21e,G4x,R30,R31,R32,R40e,R50e */
1137 IBM_HANDLE(bay2
, root
, "\\_SB.PCI0.IDE0.PRIM.SLAV", /* A3x, R32 */
1138 "\\_SB.PCI0.IDE0.IDEP.IDPS", /* 600e/x, 770e, 770x */
1140 IBM_HANDLE(bay2_ej
, bay2
, "_EJ3", /* 600e/x, 770e, A3x */
1144 static int bay_init(void)
1146 bay_status_supported
= bay_handle
&&
1147 acpi_evalf(bay_handle
, NULL
, "_STA", "qv");
1148 bay_status2_supported
= bay2_handle
&&
1149 acpi_evalf(bay2_handle
, NULL
, "_STA", "qv");
1151 bay_eject_supported
= bay_handle
&& bay_ej_handle
&&
1152 (strlencmp(bay_ej_path
, "_EJ0") == 0 || experimental
);
1153 bay_eject2_supported
= bay2_handle
&& bay2_ej_handle
&&
1154 (strlencmp(bay2_ej_path
, "_EJ0") == 0 || experimental
);
1159 static void bay_notify(struct ibm_struct
*ibm
, u32 event
)
1161 acpi_bus_generate_event(ibm
->device
, event
, 0);
1164 #define bay_occupied(b) (_sta(b##_handle) & 1)
1166 static int bay_read(char *p
)
1169 int occupied
= bay_occupied(bay
);
1170 int occupied2
= bay_occupied(bay2
);
1173 len
+= sprintf(p
+ len
, "status:\t\t%s\n", bay_status_supported
?
1174 (occupied
? "occupied" : "unoccupied") :
1176 if (bay_status2_supported
)
1177 len
+= sprintf(p
+ len
, "status2:\t%s\n", occupied2
?
1178 "occupied" : "unoccupied");
1180 eject
= bay_eject_supported
&& occupied
;
1181 eject2
= bay_eject2_supported
&& occupied2
;
1183 if (eject
&& eject2
)
1184 len
+= sprintf(p
+ len
, "commands:\teject, eject2\n");
1186 len
+= sprintf(p
+ len
, "commands:\teject\n");
1188 len
+= sprintf(p
+ len
, "commands:\teject2\n");
1193 static int bay_write(char *buf
)
1197 if (!bay_eject_supported
&& !bay_eject2_supported
)
1200 while ((cmd
= next_cmd(&buf
))) {
1201 if (bay_eject_supported
&& strlencmp(cmd
, "eject") == 0) {
1202 if (!acpi_evalf(bay_ej_handle
, NULL
, NULL
, "vd", 1))
1204 } else if (bay_eject2_supported
&&
1205 strlencmp(cmd
, "eject2") == 0) {
1206 if (!acpi_evalf(bay2_ej_handle
, NULL
, NULL
, "vd", 1))
1214 #endif /* CONFIG_THINKPAD_ACPI_BAY */
1216 /*************************************************************************
1220 static int cmos_eval(int cmos_cmd
)
1223 return acpi_evalf(cmos_handle
, NULL
, NULL
, "vd", cmos_cmd
);
1228 static int cmos_read(char *p
)
1232 /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p,
1233 R30, R31, T20-22, X20-21 */
1235 len
+= sprintf(p
+ len
, "status:\t\tnot supported\n");
1237 len
+= sprintf(p
+ len
, "status:\t\tsupported\n");
1238 len
+= sprintf(p
+ len
, "commands:\t<cmd> (<cmd> is 0-21)\n");
1244 static int cmos_write(char *buf
)
1252 while ((cmd
= next_cmd(&buf
))) {
1253 if (sscanf(cmd
, "%u", &cmos_cmd
) == 1 &&
1254 cmos_cmd
>= 0 && cmos_cmd
<= 21) {
1259 if (!cmos_eval(cmos_cmd
))
1267 /*************************************************************************
1271 static enum led_access_mode led_supported
;
1273 IBM_HANDLE(led
, ec
, "SLED", /* 570 */
1274 "SYSL", /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */
1275 "LED", /* all others */
1278 static int led_init(void)
1281 /* led not supported on R30, R31 */
1282 led_supported
= IBMACPI_LED_NONE
;
1283 else if (strlencmp(led_path
, "SLED") == 0)
1285 led_supported
= IBMACPI_LED_570
;
1286 else if (strlencmp(led_path
, "SYSL") == 0)
1287 /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */
1288 led_supported
= IBMACPI_LED_OLD
;
1291 led_supported
= IBMACPI_LED_NEW
;
1296 #define led_status(s) ((s) == 0 ? "off" : ((s) == 1 ? "on" : "blinking"))
1298 static int led_read(char *p
)
1302 if (!led_supported
) {
1303 len
+= sprintf(p
+ len
, "status:\t\tnot supported\n");
1306 len
+= sprintf(p
+ len
, "status:\t\tsupported\n");
1308 if (led_supported
== IBMACPI_LED_570
) {
1311 for (i
= 0; i
< 8; i
++) {
1312 if (!acpi_evalf(ec_handle
,
1313 &status
, "GLED", "dd", 1 << i
))
1315 len
+= sprintf(p
+ len
, "%d:\t\t%s\n",
1316 i
, led_status(status
));
1320 len
+= sprintf(p
+ len
, "commands:\t"
1321 "<led> on, <led> off, <led> blink (<led> is 0-7)\n");
1326 /* off, on, blink */
1327 static const int led_sled_arg1
[] = { 0, 1, 3 };
1328 static const int led_exp_hlbl
[] = { 0, 0, 1 }; /* led# * */
1329 static const int led_exp_hlcl
[] = { 0, 1, 1 }; /* led# * */
1330 static const int led_led_arg1
[] = { 0, 0x80, 0xc0 };
1332 static int led_write(char *buf
)
1340 while ((cmd
= next_cmd(&buf
))) {
1341 if (sscanf(cmd
, "%d", &led
) != 1 || led
< 0 || led
> 7)
1344 if (strstr(cmd
, "off")) {
1346 } else if (strstr(cmd
, "on")) {
1348 } else if (strstr(cmd
, "blink")) {
1353 if (led_supported
== IBMACPI_LED_570
) {
1356 if (!acpi_evalf(led_handle
, NULL
, NULL
, "vdd",
1357 led
, led_sled_arg1
[ind
]))
1359 } else if (led_supported
== IBMACPI_LED_OLD
) {
1360 /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */
1362 ret
= ec_write(IBMACPI_LED_EC_HLMS
, led
);
1365 ec_write(IBMACPI_LED_EC_HLBL
,
1366 led
* led_exp_hlbl
[ind
]);
1369 ec_write(IBMACPI_LED_EC_HLCL
,
1370 led
* led_exp_hlcl
[ind
]);
1375 if (!acpi_evalf(led_handle
, NULL
, NULL
, "vdd",
1376 led
, led_led_arg1
[ind
]))
1384 /*************************************************************************
1388 IBM_HANDLE(beep
, ec
, "BEEP"); /* all except R30, R31 */
1390 static int beep_read(char *p
)
1395 len
+= sprintf(p
+ len
, "status:\t\tnot supported\n");
1397 len
+= sprintf(p
+ len
, "status:\t\tsupported\n");
1398 len
+= sprintf(p
+ len
, "commands:\t<cmd> (<cmd> is 0-17)\n");
1404 static int beep_write(char *buf
)
1412 while ((cmd
= next_cmd(&buf
))) {
1413 if (sscanf(cmd
, "%u", &beep_cmd
) == 1 &&
1414 beep_cmd
>= 0 && beep_cmd
<= 17) {
1418 if (!acpi_evalf(beep_handle
, NULL
, NULL
, "vdd", beep_cmd
, 0))
1425 /*************************************************************************
1429 static enum thermal_access_mode thermal_read_mode
;
1431 static int thermal_init(void)
1435 int acpi_tmp7
= acpi_evalf(ec_handle
, NULL
, "TMP7", "qv");
1437 if (ibm_thinkpad_ec_found
&& experimental
) {
1439 * Direct EC access mode: sensors at registers
1440 * 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for
1441 * non-implemented, thermal sensors return 0x80 when
1446 for (i
= 0; i
< 8; i
++) {
1447 if (likely(acpi_ec_read(0x78 + i
, &t
))) {
1453 if (likely(acpi_ec_read(0xC0 + i
, &t
))) {
1461 /* This is sheer paranoia, but we handle it anyway */
1464 "ThinkPad ACPI EC access misbehaving, "
1465 "falling back to ACPI TMPx access mode\n");
1466 thermal_read_mode
= IBMACPI_THERMAL_ACPI_TMP07
;
1469 "ThinkPad ACPI EC access misbehaving, "
1470 "disabling thermal sensors access\n");
1471 thermal_read_mode
= IBMACPI_THERMAL_NONE
;
1476 IBMACPI_THERMAL_TPEC_16
: IBMACPI_THERMAL_TPEC_8
;
1478 } else if (acpi_tmp7
) {
1479 if (acpi_evalf(ec_handle
, NULL
, "UPDT", "qv")) {
1480 /* 600e/x, 770e, 770x */
1481 thermal_read_mode
= IBMACPI_THERMAL_ACPI_UPDT
;
1483 /* Standard ACPI TMPx access, max 8 sensors */
1484 thermal_read_mode
= IBMACPI_THERMAL_ACPI_TMP07
;
1487 /* temperatures not supported on 570, G4x, R30, R31, R32 */
1488 thermal_read_mode
= IBMACPI_THERMAL_NONE
;
1494 static int thermal_get_sensors(struct ibm_thermal_sensors_struct
*s
)
1498 char tmpi
[] = "TMPi";
1503 switch (thermal_read_mode
) {
1504 #if IBMACPI_MAX_THERMAL_SENSORS >= 16
1505 case IBMACPI_THERMAL_TPEC_16
:
1506 for (i
= 0; i
< 8; i
++) {
1507 if (!acpi_ec_read(0xC0 + i
, &tmp
))
1509 s
->temp
[i
+ 8] = tmp
* 1000;
1513 case IBMACPI_THERMAL_TPEC_8
:
1514 for (i
= 0; i
< 8; i
++) {
1515 if (!acpi_ec_read(0x78 + i
, &tmp
))
1517 s
->temp
[i
] = tmp
* 1000;
1519 return (thermal_read_mode
== IBMACPI_THERMAL_TPEC_16
) ? 16 : 8;
1521 case IBMACPI_THERMAL_ACPI_UPDT
:
1522 if (!acpi_evalf(ec_handle
, NULL
, "UPDT", "v"))
1524 for (i
= 0; i
< 8; i
++) {
1526 if (!acpi_evalf(ec_handle
, &t
, tmpi
, "d"))
1528 s
->temp
[i
] = (t
- 2732) * 100;
1532 case IBMACPI_THERMAL_ACPI_TMP07
:
1533 for (i
= 0; i
< 8; i
++) {
1535 if (!acpi_evalf(ec_handle
, &t
, tmpi
, "d"))
1537 s
->temp
[i
] = t
* 1000;
1541 case IBMACPI_THERMAL_NONE
:
1547 static int thermal_read(char *p
)
1551 struct ibm_thermal_sensors_struct t
;
1553 n
= thermal_get_sensors(&t
);
1554 if (unlikely(n
< 0))
1557 len
+= sprintf(p
+ len
, "temperatures:\t");
1560 for (i
= 0; i
< (n
- 1); i
++)
1561 len
+= sprintf(p
+ len
, "%d ", t
.temp
[i
] / 1000);
1562 len
+= sprintf(p
+ len
, "%d\n", t
.temp
[i
] / 1000);
1564 len
+= sprintf(p
+ len
, "not supported\n");
1569 /*************************************************************************
1573 static u8 ecdump_regs
[256];
1575 static int ecdump_read(char *p
)
1581 len
+= sprintf(p
+ len
, "EC "
1582 " +00 +01 +02 +03 +04 +05 +06 +07"
1583 " +08 +09 +0a +0b +0c +0d +0e +0f\n");
1584 for (i
= 0; i
< 256; i
+= 16) {
1585 len
+= sprintf(p
+ len
, "EC 0x%02x:", i
);
1586 for (j
= 0; j
< 16; j
++) {
1587 if (!acpi_ec_read(i
+ j
, &v
))
1589 if (v
!= ecdump_regs
[i
+ j
])
1590 len
+= sprintf(p
+ len
, " *%02x", v
);
1592 len
+= sprintf(p
+ len
, " %02x", v
);
1593 ecdump_regs
[i
+ j
] = v
;
1595 len
+= sprintf(p
+ len
, "\n");
1600 /* These are way too dangerous to advertise openly... */
1602 len
+= sprintf(p
+ len
, "commands:\t0x<offset> 0x<value>"
1603 " (<offset> is 00-ff, <value> is 00-ff)\n");
1604 len
+= sprintf(p
+ len
, "commands:\t0x<offset> <value> "
1605 " (<offset> is 00-ff, <value> is 0-255)\n");
1610 static int ecdump_write(char *buf
)
1615 while ((cmd
= next_cmd(&buf
))) {
1616 if (sscanf(cmd
, "0x%x 0x%x", &i
, &v
) == 2) {
1618 } else if (sscanf(cmd
, "0x%x %u", &i
, &v
) == 2) {
1622 if (i
>= 0 && i
< 256 && v
>= 0 && v
< 256) {
1623 if (!acpi_ec_write(i
, v
))
1632 /*************************************************************************
1633 * Backlight/brightness subdriver
1636 static struct backlight_device
*ibm_backlight_device
= NULL
;
1638 static struct backlight_properties ibm_backlight_data
= {
1639 .owner
= THIS_MODULE
,
1640 .get_brightness
= brightness_get
,
1641 .update_status
= brightness_update_status
,
1642 .max_brightness
= 7,
1645 static int brightness_init(void)
1649 b
= brightness_get(NULL
);
1653 ibm_backlight_device
= backlight_device_register("ibm", NULL
, NULL
,
1654 &ibm_backlight_data
);
1655 if (IS_ERR(ibm_backlight_device
)) {
1656 printk(IBM_ERR
"Could not register backlight device\n");
1657 return PTR_ERR(ibm_backlight_device
);
1660 ibm_backlight_device
->props
->brightness
= b
;
1661 brightness_update_status(ibm_backlight_device
);
1666 static void brightness_exit(void)
1668 if (ibm_backlight_device
) {
1669 backlight_device_unregister(ibm_backlight_device
);
1670 ibm_backlight_device
= NULL
;
1674 static int brightness_update_status(struct backlight_device
*bd
)
1676 return brightness_set(
1677 (bd
->props
->fb_blank
== FB_BLANK_UNBLANK
&&
1678 bd
->props
->power
== FB_BLANK_UNBLANK
) ?
1679 bd
->props
->brightness
: 0);
1682 static int brightness_get(struct backlight_device
*bd
)
1685 if (!acpi_ec_read(brightness_offset
, &level
))
1693 static int brightness_set(int value
)
1695 int cmos_cmd
, inc
, i
;
1696 int current_value
= brightness_get(NULL
);
1700 cmos_cmd
= value
> current_value
? TP_CMOS_BRIGHTNESS_UP
: TP_CMOS_BRIGHTNESS_DOWN
;
1701 inc
= value
> current_value
? 1 : -1;
1702 for (i
= current_value
; i
!= value
; i
+= inc
) {
1703 if (!cmos_eval(cmos_cmd
))
1705 if (!acpi_ec_write(brightness_offset
, i
+ inc
))
1712 static int brightness_read(char *p
)
1717 if ((level
= brightness_get(NULL
)) < 0) {
1718 len
+= sprintf(p
+ len
, "level:\t\tunreadable\n");
1720 len
+= sprintf(p
+ len
, "level:\t\t%d\n", level
& 0x7);
1721 len
+= sprintf(p
+ len
, "commands:\tup, down\n");
1722 len
+= sprintf(p
+ len
, "commands:\tlevel <level>"
1723 " (<level> is 0-7)\n");
1729 static int brightness_write(char *buf
)
1735 while ((cmd
= next_cmd(&buf
))) {
1736 if ((level
= brightness_get(NULL
)) < 0)
1740 if (strlencmp(cmd
, "up") == 0) {
1741 new_level
= level
== 7 ? 7 : level
+ 1;
1742 } else if (strlencmp(cmd
, "down") == 0) {
1743 new_level
= level
== 0 ? 0 : level
- 1;
1744 } else if (sscanf(cmd
, "level %d", &new_level
) == 1 &&
1745 new_level
>= 0 && new_level
<= 7) {
1750 brightness_set(new_level
);
1756 /*************************************************************************
1760 static int volume_read(char *p
)
1765 if (!acpi_ec_read(volume_offset
, &level
)) {
1766 len
+= sprintf(p
+ len
, "level:\t\tunreadable\n");
1768 len
+= sprintf(p
+ len
, "level:\t\t%d\n", level
& 0xf);
1769 len
+= sprintf(p
+ len
, "mute:\t\t%s\n", onoff(level
, 6));
1770 len
+= sprintf(p
+ len
, "commands:\tup, down, mute\n");
1771 len
+= sprintf(p
+ len
, "commands:\tlevel <level>"
1772 " (<level> is 0-15)\n");
1778 static int volume_write(char *buf
)
1780 int cmos_cmd
, inc
, i
;
1782 int new_level
, new_mute
;
1785 while ((cmd
= next_cmd(&buf
))) {
1786 if (!acpi_ec_read(volume_offset
, &level
))
1788 new_mute
= mute
= level
& 0x40;
1789 new_level
= level
= level
& 0xf;
1791 if (strlencmp(cmd
, "up") == 0) {
1795 new_level
= level
== 15 ? 15 : level
+ 1;
1796 } else if (strlencmp(cmd
, "down") == 0) {
1800 new_level
= level
== 0 ? 0 : level
- 1;
1801 } else if (sscanf(cmd
, "level %d", &new_level
) == 1 &&
1802 new_level
>= 0 && new_level
<= 15) {
1804 } else if (strlencmp(cmd
, "mute") == 0) {
1809 if (new_level
!= level
) { /* mute doesn't change */
1810 cmos_cmd
= new_level
> level
? TP_CMOS_VOLUME_UP
: TP_CMOS_VOLUME_DOWN
;
1811 inc
= new_level
> level
? 1 : -1;
1813 if (mute
&& (!cmos_eval(cmos_cmd
) ||
1814 !acpi_ec_write(volume_offset
, level
)))
1817 for (i
= level
; i
!= new_level
; i
+= inc
)
1818 if (!cmos_eval(cmos_cmd
) ||
1819 !acpi_ec_write(volume_offset
, i
+ inc
))
1822 if (mute
&& (!cmos_eval(TP_CMOS_VOLUME_MUTE
) ||
1823 !acpi_ec_write(volume_offset
,
1828 if (new_mute
!= mute
) { /* level doesn't change */
1829 cmos_cmd
= new_mute
? TP_CMOS_VOLUME_MUTE
: TP_CMOS_VOLUME_UP
;
1831 if (!cmos_eval(cmos_cmd
) ||
1832 !acpi_ec_write(volume_offset
, level
+ new_mute
))
1841 /*************************************************************************
1848 * IBMACPI_FAN_RD_ACPI_GFAN:
1849 * ACPI GFAN method: returns fan level
1851 * see IBMACPI_FAN_WR_ACPI_SFAN
1852 * EC 0x2f not available if GFAN exists
1854 * IBMACPI_FAN_WR_ACPI_SFAN:
1855 * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max)
1857 * EC 0x2f might be available *for reading*, but never for writing.
1859 * IBMACPI_FAN_WR_TPEC:
1860 * ThinkPad EC register 0x2f (HFSP): fan control loop mode Supported
1861 * on almost all ThinkPads
1863 * Fan speed changes of any sort (including those caused by the
1864 * disengaged mode) are usually done slowly by the firmware as the
1865 * maximum ammount of fan duty cycle change per second seems to be
1868 * Reading is not available if GFAN exists.
1869 * Writing is not available if SFAN exists.
1872 * 7 automatic mode engaged;
1873 * (default operation mode of the ThinkPad)
1874 * fan level is ignored in this mode.
1875 * 6 disengage mode (takes precedence over bit 7);
1876 * not available on all thinkpads. May disable
1877 * the tachometer, and speeds up fan to 100% duty-cycle,
1878 * which speeds it up far above the standard RPM
1879 * levels. It is not impossible that it could cause
1881 * 5-3 unused in some models. Extra bits for fan level
1882 * in others, but still useless as all values above
1883 * 7 map to the same speed as level 7 in these models.
1884 * 2-0 fan level (0..7 usually)
1886 * 0x07 = max (set when temperatures critical)
1887 * Some ThinkPads may have other levels, see
1888 * IBMACPI_FAN_WR_ACPI_FANS (X31/X40/X41)
1890 * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at
1891 * boot. Apparently the EC does not intialize it, so unless ACPI DSDT
1892 * does so, its initial value is meaningless (0x07).
1894 * For firmware bugs, refer to:
1895 * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues
1899 * ThinkPad EC register 0x84 (LSB), 0x85 (MSB):
1900 * Main fan tachometer reading (in RPM)
1902 * This register is present on all ThinkPads with a new-style EC, and
1903 * it is known not to be present on the A21m/e, and T22, as there is
1904 * something else in offset 0x84 according to the ACPI DSDT. Other
1905 * ThinkPads from this same time period (and earlier) probably lack the
1906 * tachometer as well.
1908 * Unfortunately a lot of ThinkPads with new-style ECs but whose firwmare
1909 * was never fixed by IBM to report the EC firmware version string
1910 * probably support the tachometer (like the early X models), so
1911 * detecting it is quite hard. We need more data to know for sure.
1913 * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings
1916 * FIRMWARE BUG: when EC 0x2f bit 6 is set (disengaged mode), this
1917 * register is not invalidated in ThinkPads that disable tachometer
1918 * readings. Thus, the tachometer readings go stale.
1920 * For firmware bugs, refer to:
1921 * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues
1923 * IBMACPI_FAN_WR_ACPI_FANS:
1924 * ThinkPad X31, X40, X41. Not available in the X60.
1926 * FANS ACPI handle: takes three arguments: low speed, medium speed,
1927 * high speed. ACPI DSDT seems to map these three speeds to levels
1928 * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH
1929 * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3")
1931 * The speeds are stored on handles
1932 * (FANA:FAN9), (FANC:FANB), (FANE:FAND).
1934 * There are three default speed sets, acessible as handles:
1935 * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H
1937 * ACPI DSDT switches which set is in use depending on various
1940 * IBMACPI_FAN_WR_TPEC is also available and should be used to
1941 * command the fan. The X31/X40/X41 seems to have 8 fan levels,
1942 * but the ACPI tables just mention level 7.
1945 static enum fan_status_access_mode fan_status_access_mode
;
1946 static enum fan_control_access_mode fan_control_access_mode
;
1947 static enum fan_control_commands fan_control_commands
;
1949 static int fan_control_status_known
;
1950 static u8 fan_control_initial_status
;
1952 static void fan_watchdog_fire(struct work_struct
*ignored
);
1953 static int fan_watchdog_maxinterval
;
1954 static DECLARE_DELAYED_WORK(fan_watchdog_task
, fan_watchdog_fire
);
1956 IBM_HANDLE(fans
, ec
, "FANS"); /* X31, X40, X41 */
1957 IBM_HANDLE(gfan
, ec
, "GFAN", /* 570 */
1958 "\\FSPD", /* 600e/x, 770e, 770x */
1960 IBM_HANDLE(sfan
, ec
, "SFAN", /* 570 */
1961 "JFNS", /* 770x-JL */
1964 static int fan_init(void)
1966 fan_status_access_mode
= IBMACPI_FAN_NONE
;
1967 fan_control_access_mode
= IBMACPI_FAN_WR_NONE
;
1968 fan_control_commands
= 0;
1969 fan_control_status_known
= 1;
1970 fan_watchdog_maxinterval
= 0;
1973 /* 570, 600e/x, 770e, 770x */
1974 fan_status_access_mode
= IBMACPI_FAN_RD_ACPI_GFAN
;
1976 /* all other ThinkPads: note that even old-style
1977 * ThinkPad ECs supports the fan control register */
1978 if (likely(acpi_ec_read(fan_status_offset
,
1979 &fan_control_initial_status
))) {
1980 fan_status_access_mode
= IBMACPI_FAN_RD_TPEC
;
1982 /* In some ThinkPads, neither the EC nor the ACPI
1983 * DSDT initialize the fan status, and it ends up
1984 * being set to 0x07 when it *could* be either
1987 * Enable for TP-1Y (T43), TP-78 (R51e),
1988 * TP-76 (R52), TP-70 (T43, R52), which are known
1990 if (fan_control_initial_status
== 0x07 &&
1991 ibm_thinkpad_ec_found
&&
1992 ((ibm_thinkpad_ec_found
[0] == '1' &&
1993 ibm_thinkpad_ec_found
[1] == 'Y') ||
1994 (ibm_thinkpad_ec_found
[0] == '7' &&
1995 (ibm_thinkpad_ec_found
[1] == '6' ||
1996 ibm_thinkpad_ec_found
[1] == '8' ||
1997 ibm_thinkpad_ec_found
[1] == '0'))
2000 "fan_init: initial fan status is "
2001 "unknown, assuming it is in auto "
2003 fan_control_status_known
= 0;
2007 "ThinkPad ACPI EC access misbehaving, "
2008 "fan status and control unavailable\n");
2015 fan_control_access_mode
= IBMACPI_FAN_WR_ACPI_SFAN
;
2016 fan_control_commands
|=
2017 IBMACPI_FAN_CMD_LEVEL
| IBMACPI_FAN_CMD_ENABLE
;
2020 /* gfan without sfan means no fan control */
2021 /* all other models implement TP EC 0x2f control */
2025 fan_control_access_mode
=
2026 IBMACPI_FAN_WR_ACPI_FANS
;
2027 fan_control_commands
|=
2028 IBMACPI_FAN_CMD_SPEED
|
2029 IBMACPI_FAN_CMD_LEVEL
|
2030 IBMACPI_FAN_CMD_ENABLE
;
2032 fan_control_access_mode
= IBMACPI_FAN_WR_TPEC
;
2033 fan_control_commands
|=
2034 IBMACPI_FAN_CMD_LEVEL
|
2035 IBMACPI_FAN_CMD_ENABLE
;
2043 static int fan_get_status(u8
*status
)
2048 * Add IBMACPI_FAN_RD_ACPI_FANS ? */
2050 switch (fan_status_access_mode
) {
2051 case IBMACPI_FAN_RD_ACPI_GFAN
:
2052 /* 570, 600e/x, 770e, 770x */
2054 if (unlikely(!acpi_evalf(gfan_handle
, &s
, NULL
, "d")))
2062 case IBMACPI_FAN_RD_TPEC
:
2063 /* all except 570, 600e/x, 770e, 770x */
2064 if (unlikely(!acpi_ec_read(fan_status_offset
, &s
)))
2079 static void fan_exit(void)
2081 cancel_delayed_work(&fan_watchdog_task
);
2082 flush_scheduled_work();
2085 static int fan_get_speed(unsigned int *speed
)
2089 switch (fan_status_access_mode
) {
2090 case IBMACPI_FAN_RD_TPEC
:
2091 /* all except 570, 600e/x, 770e, 770x */
2092 if (unlikely(!acpi_ec_read(fan_rpm_offset
, &lo
) ||
2093 !acpi_ec_read(fan_rpm_offset
+ 1, &hi
)))
2097 *speed
= (hi
<< 8) | lo
;
2108 static void fan_watchdog_fire(struct work_struct
*ignored
)
2110 printk(IBM_NOTICE
"fan watchdog: enabling fan\n");
2111 if (fan_set_enable()) {
2112 printk(IBM_ERR
"fan watchdog: error while enabling fan\n");
2113 /* reschedule for later */
2114 fan_watchdog_reset();
2118 static void fan_watchdog_reset(void)
2120 static int fan_watchdog_active
= 0;
2122 if (fan_watchdog_active
)
2123 cancel_delayed_work(&fan_watchdog_task
);
2125 if (fan_watchdog_maxinterval
> 0) {
2126 fan_watchdog_active
= 1;
2127 if (!schedule_delayed_work(&fan_watchdog_task
,
2128 msecs_to_jiffies(fan_watchdog_maxinterval
2130 printk(IBM_ERR
"failed to schedule the fan watchdog, "
2131 "watchdog will not trigger\n");
2134 fan_watchdog_active
= 0;
2137 static int fan_set_level(int level
)
2139 switch (fan_control_access_mode
) {
2140 case IBMACPI_FAN_WR_ACPI_SFAN
:
2141 if (level
>= 0 && level
<= 7) {
2142 if (!acpi_evalf(sfan_handle
, NULL
, NULL
, "vd", level
))
2148 case IBMACPI_FAN_WR_ACPI_FANS
:
2149 case IBMACPI_FAN_WR_TPEC
:
2150 if ((level
!= IBMACPI_FAN_EC_AUTO
) &&
2151 (level
!= IBMACPI_FAN_EC_DISENGAGED
) &&
2152 ((level
< 0) || (level
> 7)))
2155 if (!acpi_ec_write(fan_status_offset
, level
))
2158 fan_control_status_known
= 1;
2167 static int fan_set_enable(void)
2172 switch (fan_control_access_mode
) {
2173 case IBMACPI_FAN_WR_ACPI_FANS
:
2174 case IBMACPI_FAN_WR_TPEC
:
2175 if ((rc
= fan_get_status(&s
)) < 0)
2178 /* Don't go out of emergency fan mode */
2180 s
= IBMACPI_FAN_EC_AUTO
;
2182 if (!acpi_ec_write(fan_status_offset
, s
))
2185 fan_control_status_known
= 1;
2188 case IBMACPI_FAN_WR_ACPI_SFAN
:
2189 if ((rc
= fan_get_status(&s
)) < 0)
2194 /* Set fan to at least level 4 */
2198 if (!acpi_evalf(sfan_handle
, NULL
, NULL
, "vd", s
))
2208 static int fan_set_disable(void)
2210 switch (fan_control_access_mode
) {
2211 case IBMACPI_FAN_WR_ACPI_FANS
:
2212 case IBMACPI_FAN_WR_TPEC
:
2213 if (!acpi_ec_write(fan_status_offset
, 0x00))
2216 fan_control_status_known
= 1;
2219 case IBMACPI_FAN_WR_ACPI_SFAN
:
2220 if (!acpi_evalf(sfan_handle
, NULL
, NULL
, "vd", 0x00))
2230 static int fan_set_speed(int speed
)
2232 switch (fan_control_access_mode
) {
2233 case IBMACPI_FAN_WR_ACPI_FANS
:
2234 if (speed
>= 0 && speed
<= 65535) {
2235 if (!acpi_evalf(fans_handle
, NULL
, NULL
, "vddd",
2236 speed
, speed
, speed
))
2248 static int fan_read(char *p
)
2253 unsigned int speed
= 0;
2255 switch (fan_status_access_mode
) {
2256 case IBMACPI_FAN_RD_ACPI_GFAN
:
2257 /* 570, 600e/x, 770e, 770x */
2258 if ((rc
= fan_get_status(&status
)) < 0)
2261 len
+= sprintf(p
+ len
, "status:\t\t%s\n"
2263 (status
!= 0) ? "enabled" : "disabled", status
);
2266 case IBMACPI_FAN_RD_TPEC
:
2267 /* all except 570, 600e/x, 770e, 770x */
2268 if ((rc
= fan_get_status(&status
)) < 0)
2271 if (unlikely(!fan_control_status_known
)) {
2272 if (status
!= fan_control_initial_status
)
2273 fan_control_status_known
= 1;
2275 /* Return most likely status. In fact, it
2276 * might be the only possible status */
2277 status
= IBMACPI_FAN_EC_AUTO
;
2280 len
+= sprintf(p
+ len
, "status:\t\t%s\n",
2281 (status
!= 0) ? "enabled" : "disabled");
2283 /* No ThinkPad boots on disengaged mode, we can safely
2284 * assume the tachometer is online if fan control status
2286 if ((rc
= fan_get_speed(&speed
)) < 0)
2289 len
+= sprintf(p
+ len
, "speed:\t\t%d\n", speed
);
2291 if (status
& IBMACPI_FAN_EC_DISENGAGED
)
2292 /* Disengaged mode takes precedence */
2293 len
+= sprintf(p
+ len
, "level:\t\tdisengaged\n");
2294 else if (status
& IBMACPI_FAN_EC_AUTO
)
2295 len
+= sprintf(p
+ len
, "level:\t\tauto\n");
2297 len
+= sprintf(p
+ len
, "level:\t\t%d\n", status
);
2300 case IBMACPI_FAN_NONE
:
2302 len
+= sprintf(p
+ len
, "status:\t\tnot supported\n");
2305 if (fan_control_commands
& IBMACPI_FAN_CMD_LEVEL
) {
2306 len
+= sprintf(p
+ len
, "commands:\tlevel <level>");
2308 switch (fan_control_access_mode
) {
2309 case IBMACPI_FAN_WR_ACPI_SFAN
:
2310 len
+= sprintf(p
+ len
, " (<level> is 0-7)\n");
2314 len
+= sprintf(p
+ len
, " (<level> is 0-7, "
2315 "auto, disengaged)\n");
2320 if (fan_control_commands
& IBMACPI_FAN_CMD_ENABLE
)
2321 len
+= sprintf(p
+ len
, "commands:\tenable, disable\n"
2322 "commands:\twatchdog <timeout> (<timeout> is 0 (off), "
2323 "1-120 (seconds))\n");
2325 if (fan_control_commands
& IBMACPI_FAN_CMD_SPEED
)
2326 len
+= sprintf(p
+ len
, "commands:\tspeed <speed>"
2327 " (<speed> is 0-65535)\n");
2332 static int fan_write_cmd_level(const char *cmd
, int *rc
)
2336 if (strlencmp(cmd
, "level auto") == 0)
2337 level
= IBMACPI_FAN_EC_AUTO
;
2338 else if (strlencmp(cmd
, "level disengaged") == 0)
2339 level
= IBMACPI_FAN_EC_DISENGAGED
;
2340 else if (sscanf(cmd
, "level %d", &level
) != 1)
2343 if ((*rc
= fan_set_level(level
)) == -ENXIO
)
2344 printk(IBM_ERR
"level command accepted for unsupported "
2345 "access mode %d", fan_control_access_mode
);
2350 static int fan_write_cmd_enable(const char *cmd
, int *rc
)
2352 if (strlencmp(cmd
, "enable") != 0)
2355 if ((*rc
= fan_set_enable()) == -ENXIO
)
2356 printk(IBM_ERR
"enable command accepted for unsupported "
2357 "access mode %d", fan_control_access_mode
);
2362 static int fan_write_cmd_disable(const char *cmd
, int *rc
)
2364 if (strlencmp(cmd
, "disable") != 0)
2367 if ((*rc
= fan_set_disable()) == -ENXIO
)
2368 printk(IBM_ERR
"disable command accepted for unsupported "
2369 "access mode %d", fan_control_access_mode
);
2374 static int fan_write_cmd_speed(const char *cmd
, int *rc
)
2379 * Support speed <low> <medium> <high> ? */
2381 if (sscanf(cmd
, "speed %d", &speed
) != 1)
2384 if ((*rc
= fan_set_speed(speed
)) == -ENXIO
)
2385 printk(IBM_ERR
"speed command accepted for unsupported "
2386 "access mode %d", fan_control_access_mode
);
2391 static int fan_write_cmd_watchdog(const char *cmd
, int *rc
)
2395 if (sscanf(cmd
, "watchdog %d", &interval
) != 1)
2398 if (interval
< 0 || interval
> 120)
2401 fan_watchdog_maxinterval
= interval
;
2406 static int fan_write(char *buf
)
2411 while (!rc
&& (cmd
= next_cmd(&buf
))) {
2412 if (!((fan_control_commands
& IBMACPI_FAN_CMD_LEVEL
) &&
2413 fan_write_cmd_level(cmd
, &rc
)) &&
2414 !((fan_control_commands
& IBMACPI_FAN_CMD_ENABLE
) &&
2415 (fan_write_cmd_enable(cmd
, &rc
) ||
2416 fan_write_cmd_disable(cmd
, &rc
) ||
2417 fan_write_cmd_watchdog(cmd
, &rc
))) &&
2418 !((fan_control_commands
& IBMACPI_FAN_CMD_SPEED
) &&
2419 fan_write_cmd_speed(cmd
, &rc
))
2423 fan_watchdog_reset();
2429 /****************************************************************************
2430 ****************************************************************************
2434 ****************************************************************************
2435 ****************************************************************************/
2438 static struct proc_dir_entry
*proc_dir
= NULL
;
2440 /* Subdriver registry */
2441 static struct ibm_struct ibms
[] = {
2444 .init
= ibm_acpi_driver_init
,
2445 .read
= ibm_acpi_driver_read
,
2449 .hid
= IBM_HKEY_HID
,
2450 .init
= hotkey_init
,
2451 .read
= hotkey_read
,
2452 .write
= hotkey_write
,
2453 .exit
= hotkey_exit
,
2454 .notify
= hotkey_notify
,
2455 .handle
= &hkey_handle
,
2456 .type
= ACPI_DEVICE_NOTIFY
,
2459 .name
= "bluetooth",
2460 .init
= bluetooth_init
,
2461 .read
= bluetooth_read
,
2462 .write
= bluetooth_write
,
2475 .write
= video_write
,
2482 .write
= light_write
,
2484 #ifdef CONFIG_THINKPAD_ACPI_DOCK
2488 .write
= dock_write
,
2489 .notify
= dock_notify
,
2490 .handle
= &dock_handle
,
2491 .type
= ACPI_SYSTEM_NOTIFY
,
2496 .notify
= dock_notify
,
2497 .handle
= &pci_handle
,
2498 .type
= ACPI_SYSTEM_NOTIFY
,
2501 #ifdef CONFIG_THINKPAD_ACPI_BAY
2507 .notify
= bay_notify
,
2508 .handle
= &bay_handle
,
2509 .type
= ACPI_SYSTEM_NOTIFY
,
2511 #endif /* CONFIG_THINKPAD_ACPI_BAY */
2515 .write
= cmos_write
,
2526 .write
= beep_write
,
2530 .init
= thermal_init
,
2531 .read
= thermal_read
,
2535 .read
= ecdump_read
,
2536 .write
= ecdump_write
,
2540 .name
= "brightness",
2541 .read
= brightness_read
,
2542 .write
= brightness_write
,
2543 .init
= brightness_init
,
2544 .exit
= brightness_exit
,
2548 .read
= volume_read
,
2549 .write
= volume_write
,
2562 * Module and infrastructure proble, init and exit handling
2565 static int __init
ibm_init(struct ibm_struct
*ibm
)
2568 struct proc_dir_entry
*entry
;
2570 if (ibm
->experimental
&& !experimental
)
2574 ret
= register_ibmacpi_subdriver(ibm
);
2577 ibm
->driver_registered
= 1;
2584 ibm
->init_called
= 1;
2588 entry
= create_proc_entry(ibm
->name
,
2589 S_IFREG
| S_IRUGO
| S_IWUSR
,
2592 printk(IBM_ERR
"unable to create proc entry %s\n",
2596 entry
->owner
= THIS_MODULE
;
2598 entry
->read_proc
= &dispatch_read
;
2600 entry
->write_proc
= &dispatch_write
;
2601 ibm
->proc_created
= 1;
2605 ret
= setup_notify(ibm
);
2606 if (ret
== -ENODEV
) {
2607 printk(IBM_NOTICE
"disabling subdriver %s\n",
2619 static void ibm_exit(struct ibm_struct
*ibm
)
2621 if (ibm
->notify_installed
)
2622 acpi_remove_notify_handler(*ibm
->handle
, ibm
->type
,
2625 if (ibm
->proc_created
)
2626 remove_proc_entry(ibm
->name
, proc_dir
);
2628 if (ibm
->init_called
&& ibm
->exit
)
2631 if (ibm
->driver_registered
) {
2632 acpi_bus_unregister_driver(ibm
->driver
);
2639 static char *ibm_thinkpad_ec_found
= NULL
;
2641 static char* __init
check_dmi_for_ec(void)
2643 struct dmi_device
*dev
= NULL
;
2644 char ec_fw_string
[18];
2647 * ThinkPad T23 or newer, A31 or newer, R50e or newer,
2648 * X32 or newer, all Z series; Some models must have an
2649 * up-to-date BIOS or they will not be detected.
2651 * See http://thinkwiki.org/wiki/List_of_DMI_IDs
2653 while ((dev
= dmi_find_device(DMI_DEV_TYPE_OEM_STRING
, NULL
, dev
))) {
2654 if (sscanf(dev
->name
,
2655 "IBM ThinkPad Embedded Controller -[%17c",
2656 ec_fw_string
) == 1) {
2657 ec_fw_string
[sizeof(ec_fw_string
) - 1] = 0;
2658 ec_fw_string
[strcspn(ec_fw_string
, " ]")] = 0;
2659 return kstrdup(ec_fw_string
, GFP_KERNEL
);
2665 /* Module init, exit, parameters */
2667 static int __init
set_ibm_param(const char *val
, struct kernel_param
*kp
)
2671 for (i
= 0; i
< ARRAY_SIZE(ibms
); i
++)
2672 if (strcmp(ibms
[i
].name
, kp
->name
) == 0 && ibms
[i
].write
) {
2673 if (strlen(val
) > sizeof(ibms
[i
].param
) - 2)
2675 strcpy(ibms
[i
].param
, val
);
2676 strcat(ibms
[i
].param
, ",");
2683 static int experimental
;
2684 module_param(experimental
, int, 0);
2686 #define IBM_PARAM(feature) \
2687 module_param_call(feature, set_ibm_param, NULL, NULL, 0)
2690 IBM_PARAM(bluetooth
);
2693 #ifdef CONFIG_THINKPAD_ACPI_DOCK
2696 #ifdef CONFIG_THINKPAD_ACPI_BAY
2698 #endif /* CONFIG_THINKPAD_ACPI_BAY */
2703 IBM_PARAM(brightness
);
2707 static int __init
acpi_ibm_init(void)
2714 if (!acpi_specific_hotkey_enabled
) {
2715 printk(IBM_ERR
"using generic hotkey driver\n");
2719 /* ec is required because many other handles are relative to it */
2720 IBM_HANDLE_INIT(ec
);
2722 printk(IBM_ERR
"ec object not found\n");
2726 /* Models with newer firmware report the EC in DMI */
2727 ibm_thinkpad_ec_found
= check_dmi_for_ec();
2729 /* these handles are not required */
2730 IBM_HANDLE_INIT(vid
);
2731 IBM_HANDLE_INIT(vid2
);
2732 IBM_HANDLE_INIT(ledb
);
2733 IBM_HANDLE_INIT(led
);
2734 IBM_HANDLE_INIT(hkey
);
2735 IBM_HANDLE_INIT(lght
);
2736 IBM_HANDLE_INIT(cmos
);
2737 #ifdef CONFIG_THINKPAD_ACPI_DOCK
2738 IBM_HANDLE_INIT(dock
);
2740 IBM_HANDLE_INIT(pci
);
2741 #ifdef CONFIG_THINKPAD_ACPI_BAY
2742 IBM_HANDLE_INIT(bay
);
2744 IBM_HANDLE_INIT(bay_ej
);
2745 IBM_HANDLE_INIT(bay2
);
2747 IBM_HANDLE_INIT(bay2_ej
);
2748 #endif /* CONFIG_THINKPAD_ACPI_BAY */
2749 IBM_HANDLE_INIT(beep
);
2750 IBM_HANDLE_INIT(ecrd
);
2751 IBM_HANDLE_INIT(ecwr
);
2752 IBM_HANDLE_INIT(fans
);
2753 IBM_HANDLE_INIT(gfan
);
2754 IBM_HANDLE_INIT(sfan
);
2756 proc_dir
= proc_mkdir(IBM_DIR
, acpi_root_dir
);
2758 printk(IBM_ERR
"unable to create proc dir %s", IBM_DIR
);
2762 proc_dir
->owner
= THIS_MODULE
;
2764 for (i
= 0; i
< ARRAY_SIZE(ibms
); i
++) {
2765 ret
= ibm_init(&ibms
[i
]);
2766 if (ret
>= 0 && *ibms
[i
].param
)
2767 ret
= ibms
[i
].write(ibms
[i
].param
);
2777 static void acpi_ibm_exit(void)
2781 for (i
= ARRAY_SIZE(ibms
) - 1; i
>= 0; i
--)
2785 remove_proc_entry(IBM_DIR
, acpi_root_dir
);
2787 if (ibm_thinkpad_ec_found
)
2788 kfree(ibm_thinkpad_ec_found
);
2791 module_init(acpi_ibm_init
);
2792 module_exit(acpi_ibm_exit
);