2 * thinkpad_acpi.c - 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 "0.16"
25 #define TPACPI_SYSFS_VERSION 0x010000
29 * 2007-03-27 0.14 renamed to thinkpad_acpi and moved to
32 * 2006-11-22 0.13 new maintainer
33 * changelog now lives in git commit history, and will
34 * not be updated further in-file.
36 * 2005-08-17 0.12 fix compilation on 2.6.13-rc kernels
37 * 2005-03-17 0.11 support for 600e, 770x
38 * thanks to Jamie Lentin <lentinj@dial.pipex.com>
39 * support for 770e, G41
40 * G40 and G41 don't have a thinklight
41 * temperatures no longer experimental
42 * experimental brightness control
43 * experimental volume control
44 * experimental fan enable/disable
45 * 2005-01-16 0.10 fix module loading on R30, R31
46 * 2005-01-16 0.9 support for 570, R30, R31
47 * ultrabay support on A22p, A3x
48 * limit arg for cmos, led, beep, drop experimental status
49 * more capable led control on A21e, A22p, T20-22, X20
50 * experimental temperatures and fan speed
51 * experimental embedded controller register dump
52 * mark more functions as __init, drop incorrect __exit
54 * thanks to Henrik Brix Andersen <brix@gentoo.org>
55 * fix parameter passing on module loading
56 * thanks to Rusty Russell <rusty@rustcorp.com.au>
57 * thanks to Jim Radford <radford@blackbean.org>
58 * 2004-11-08 0.8 fix init error case, don't return from a macro
59 * thanks to Chris Wright <chrisw@osdl.org>
60 * 2004-10-23 0.7 fix module loading on A21e, A22p, T20, T21, X20
61 * fix led control on A21e
62 * 2004-10-19 0.6 use acpi_bus_register_driver() to claim HKEY device
63 * 2004-10-18 0.5 thinklight support on A21e, G40, R32, T20, T21, X20
64 * proc file format changed
65 * video_switch command
66 * experimental cmos control
67 * experimental led control
68 * experimental acpi sounds
69 * 2004-09-16 0.4 support for module parameters
70 * hotkey mask can be prefixed by 0x
71 * video output switching
72 * video expansion control
73 * ultrabay eject support
74 * removed lcd brightness/on/off control, didn't work
75 * 2004-08-17 0.3 support for R40
76 * lcd off, brightness control
78 * 2004-08-14 0.2 support for T series, X20
79 * bluetooth enable/disable
80 * hotkey events disabled by default
81 * removed fan control, currently useless
82 * 2004-08-09 0.1 initial release, support for X series
85 #include "thinkpad_acpi.h"
87 MODULE_AUTHOR("Borislav Deianov, Henrique de Moraes Holschuh");
88 MODULE_DESCRIPTION(IBM_DESC
);
89 MODULE_VERSION(IBM_VERSION
);
90 MODULE_LICENSE("GPL");
92 /* Please remove this in year 2009 */
93 MODULE_ALIAS("ibm_acpi");
96 * DMI matching for module autoloading
98 * See http://thinkwiki.org/wiki/List_of_DMI_IDs
99 * See http://thinkwiki.org/wiki/BIOS_Upgrade_Downloads
101 * Only models listed in thinkwiki will be supported, so add yours
102 * if it is not there yet.
104 #define IBM_BIOS_MODULE_ALIAS(__type) \
105 MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW")
107 /* Non-ancient thinkpads */
108 MODULE_ALIAS("dmi:bvnIBM:*:svnIBM:*:pvrThinkPad*:rvnIBM:*");
109 MODULE_ALIAS("dmi:bvnLENOVO:*:svnLENOVO:*:pvrThinkPad*:rvnLENOVO:*");
111 /* Ancient thinkpad BIOSes have to be identified by
112 * BIOS type or model number, and there are far less
113 * BIOS types than model numbers... */
114 IBM_BIOS_MODULE_ALIAS("I[B,D,H,I,M,N,O,T,W,V,Y,Z]");
115 IBM_BIOS_MODULE_ALIAS("1[0,3,6,8,A-G,I,K,M-P,S,T]");
116 IBM_BIOS_MODULE_ALIAS("K[U,X-Z]");
118 #define __unused __attribute__ ((unused))
121 TPACPI_LIFE_INIT
= 0,
126 /****************************************************************************
127 ****************************************************************************
129 * ACPI Helpers and device model
131 ****************************************************************************
132 ****************************************************************************/
134 /*************************************************************************
138 static acpi_handle root_handle
;
140 #define IBM_HANDLE(object, parent, paths...) \
141 static acpi_handle object##_handle; \
142 static acpi_handle *object##_parent = &parent##_handle; \
143 static char *object##_path; \
144 static char *object##_paths[] = { paths }
146 IBM_HANDLE(ec
, root
, "\\_SB.PCI0.ISA.EC0", /* 240, 240x */
147 "\\_SB.PCI.ISA.EC", /* 570 */
148 "\\_SB.PCI0.ISA0.EC0", /* 600e/x, 770e, 770x */
149 "\\_SB.PCI0.ISA.EC", /* A21e, A2xm/p, T20-22, X20-21 */
150 "\\_SB.PCI0.AD4S.EC0", /* i1400, R30 */
151 "\\_SB.PCI0.ICH3.EC0", /* R31 */
152 "\\_SB.PCI0.LPC.EC", /* all others */
155 IBM_HANDLE(ecrd
, ec
, "ECRD"); /* 570 */
156 IBM_HANDLE(ecwr
, ec
, "ECWR"); /* 570 */
159 /*************************************************************************
163 IBM_HANDLE(cmos
, root
, "\\UCMS", /* R50, R50e, R50p, R51, T4x, X31, X40 */
164 "\\CMOS", /* A3x, G4x, R32, T23, T30, X22-24, X30 */
165 "\\CMS", /* R40, R40e */
168 IBM_HANDLE(hkey
, ec
, "\\_SB.HKEY", /* 600e/x, 770e, 770x */
169 "^HKEY", /* R30, R31 */
170 "HKEY", /* all others */
174 /*************************************************************************
178 static int acpi_evalf(acpi_handle handle
,
179 void *res
, char *method
, char *fmt
, ...)
182 struct acpi_object_list params
;
183 union acpi_object in_objs
[IBM_MAX_ACPI_ARGS
];
184 struct acpi_buffer result
, *resultp
;
185 union acpi_object out_obj
;
193 printk(IBM_ERR
"acpi_evalf() called with empty format\n");
206 params
.pointer
= &in_objs
[0];
213 in_objs
[params
.count
].integer
.value
= va_arg(ap
, int);
214 in_objs
[params
.count
++].type
= ACPI_TYPE_INTEGER
;
216 /* add more types as needed */
218 printk(IBM_ERR
"acpi_evalf() called "
219 "with invalid format character '%c'\n", c
);
225 if (res_type
!= 'v') {
226 result
.length
= sizeof(out_obj
);
227 result
.pointer
= &out_obj
;
232 status
= acpi_evaluate_object(handle
, method
, ¶ms
, resultp
);
237 *(int *)res
= out_obj
.integer
.value
;
238 success
= status
== AE_OK
&& out_obj
.type
== ACPI_TYPE_INTEGER
;
241 success
= status
== AE_OK
;
243 /* add more types as needed */
245 printk(IBM_ERR
"acpi_evalf() called "
246 "with invalid format character '%c'\n", res_type
);
250 if (!success
&& !quiet
)
251 printk(IBM_ERR
"acpi_evalf(%s, %s, ...) failed: %d\n",
252 method
, fmt0
, status
);
257 static void __unused
acpi_print_int(acpi_handle handle
, char *method
)
261 if (acpi_evalf(handle
, &i
, method
, "d"))
262 printk(IBM_INFO
"%s = 0x%x\n", method
, i
);
264 printk(IBM_ERR
"error calling %s\n", method
);
267 static int acpi_ec_read(int i
, u8
* p
)
272 if (!acpi_evalf(ecrd_handle
, &v
, NULL
, "dd", i
))
276 if (ec_read(i
, p
) < 0)
283 static int acpi_ec_write(int i
, u8 v
)
286 if (!acpi_evalf(ecwr_handle
, NULL
, NULL
, "vdd", i
, v
))
289 if (ec_write(i
, v
) < 0)
296 static int _sta(acpi_handle handle
)
300 if (!handle
|| !acpi_evalf(handle
, &status
, "_STA", "d"))
306 static int issue_thinkpad_cmos_command(int cmos_cmd
)
311 if (!acpi_evalf(cmos_handle
, NULL
, NULL
, "vd", cmos_cmd
))
317 /*************************************************************************
321 static void drv_acpi_handle_init(char *name
,
322 acpi_handle
*handle
, acpi_handle parent
,
323 char **paths
, int num_paths
, char **path
)
328 vdbg_printk(TPACPI_DBG_INIT
, "trying to locate ACPI handle for %s\n",
331 for (i
= 0; i
< num_paths
; i
++) {
332 status
= acpi_get_handle(parent
, paths
[i
], handle
);
333 if (ACPI_SUCCESS(status
)) {
335 dbg_printk(TPACPI_DBG_INIT
,
336 "Found ACPI handle %s for %s\n",
342 vdbg_printk(TPACPI_DBG_INIT
, "ACPI handle for %s not found\n",
347 static void dispatch_acpi_notify(acpi_handle handle
, u32 event
, void *data
)
349 struct ibm_struct
*ibm
= data
;
351 if (tpacpi_lifecycle
!= TPACPI_LIFE_RUNNING
)
354 if (!ibm
|| !ibm
->acpi
|| !ibm
->acpi
->notify
)
357 ibm
->acpi
->notify(ibm
, event
);
360 static int __init
setup_acpi_notify(struct ibm_struct
*ibm
)
367 if (!*ibm
->acpi
->handle
)
370 vdbg_printk(TPACPI_DBG_INIT
,
371 "setting up ACPI notify for %s\n", ibm
->name
);
373 rc
= acpi_bus_get_device(*ibm
->acpi
->handle
, &ibm
->acpi
->device
);
375 printk(IBM_ERR
"acpi_bus_get_device(%s) failed: %d\n",
380 acpi_driver_data(ibm
->acpi
->device
) = ibm
;
381 sprintf(acpi_device_class(ibm
->acpi
->device
), "%s/%s",
382 IBM_ACPI_EVENT_PREFIX
,
385 status
= acpi_install_notify_handler(*ibm
->acpi
->handle
,
386 ibm
->acpi
->type
, dispatch_acpi_notify
, ibm
);
387 if (ACPI_FAILURE(status
)) {
388 if (status
== AE_ALREADY_EXISTS
) {
389 printk(IBM_NOTICE
"another device driver is already handling %s events\n",
392 printk(IBM_ERR
"acpi_install_notify_handler(%s) failed: %d\n",
397 ibm
->flags
.acpi_notify_installed
= 1;
401 static int __init
tpacpi_device_add(struct acpi_device
*device
)
406 static int __init
register_tpacpi_subdriver(struct ibm_struct
*ibm
)
410 dbg_printk(TPACPI_DBG_INIT
,
411 "registering %s as an ACPI driver\n", ibm
->name
);
415 ibm
->acpi
->driver
= kzalloc(sizeof(struct acpi_driver
), GFP_KERNEL
);
416 if (!ibm
->acpi
->driver
) {
417 printk(IBM_ERR
"kzalloc(ibm->driver) failed\n");
421 sprintf(ibm
->acpi
->driver
->name
, "%s_%s", IBM_NAME
, ibm
->name
);
422 ibm
->acpi
->driver
->ids
= ibm
->acpi
->hid
;
424 ibm
->acpi
->driver
->ops
.add
= &tpacpi_device_add
;
426 rc
= acpi_bus_register_driver(ibm
->acpi
->driver
);
428 printk(IBM_ERR
"acpi_bus_register_driver(%s) failed: %d\n",
430 kfree(ibm
->acpi
->driver
);
431 ibm
->acpi
->driver
= NULL
;
433 ibm
->flags
.acpi_driver_registered
= 1;
439 /****************************************************************************
440 ****************************************************************************
444 ****************************************************************************
445 ****************************************************************************/
447 static int dispatch_procfs_read(char *page
, char **start
, off_t off
,
448 int count
, int *eof
, void *data
)
450 struct ibm_struct
*ibm
= data
;
453 if (!ibm
|| !ibm
->read
)
456 len
= ibm
->read(page
);
460 if (len
<= off
+ count
)
472 static int dispatch_procfs_write(struct file
*file
,
473 const char __user
* userbuf
,
474 unsigned long count
, void *data
)
476 struct ibm_struct
*ibm
= data
;
480 if (!ibm
|| !ibm
->write
)
483 kernbuf
= kmalloc(count
+ 2, GFP_KERNEL
);
487 if (copy_from_user(kernbuf
, userbuf
, count
)) {
493 strcat(kernbuf
, ",");
494 ret
= ibm
->write(kernbuf
);
503 static char *next_cmd(char **cmds
)
508 while ((end
= strchr(start
, ',')) && end
== start
)
520 /****************************************************************************
521 ****************************************************************************
523 * Device model: input, hwmon and platform
525 ****************************************************************************
526 ****************************************************************************/
528 static struct platform_device
*tpacpi_pdev
;
529 static struct class_device
*tpacpi_hwmon
;
530 static struct input_dev
*tpacpi_inputdev
;
531 static struct mutex tpacpi_inputdev_send_mutex
;
534 static int tpacpi_resume_handler(struct platform_device
*pdev
)
536 struct ibm_struct
*ibm
, *itmp
;
538 list_for_each_entry_safe(ibm
, itmp
,
548 static struct platform_driver tpacpi_pdriver
= {
550 .name
= IBM_DRVR_NAME
,
551 .owner
= THIS_MODULE
,
553 .resume
= tpacpi_resume_handler
,
557 /*************************************************************************
558 * thinkpad-acpi driver attributes
561 /* interface_version --------------------------------------------------- */
562 static ssize_t
tpacpi_driver_interface_version_show(
563 struct device_driver
*drv
,
566 return snprintf(buf
, PAGE_SIZE
, "0x%08x\n", TPACPI_SYSFS_VERSION
);
569 static DRIVER_ATTR(interface_version
, S_IRUGO
,
570 tpacpi_driver_interface_version_show
, NULL
);
572 /* debug_level --------------------------------------------------------- */
573 static ssize_t
tpacpi_driver_debug_show(struct device_driver
*drv
,
576 return snprintf(buf
, PAGE_SIZE
, "0x%04x\n", dbg_level
);
579 static ssize_t
tpacpi_driver_debug_store(struct device_driver
*drv
,
580 const char *buf
, size_t count
)
584 if (parse_strtoul(buf
, 0xffff, &t
))
592 static DRIVER_ATTR(debug_level
, S_IWUSR
| S_IRUGO
,
593 tpacpi_driver_debug_show
, tpacpi_driver_debug_store
);
595 /* version ------------------------------------------------------------- */
596 static ssize_t
tpacpi_driver_version_show(struct device_driver
*drv
,
599 return snprintf(buf
, PAGE_SIZE
, "%s v%s\n", IBM_DESC
, IBM_VERSION
);
602 static DRIVER_ATTR(version
, S_IRUGO
,
603 tpacpi_driver_version_show
, NULL
);
605 /* --------------------------------------------------------------------- */
607 static struct driver_attribute
* tpacpi_driver_attributes
[] = {
608 &driver_attr_debug_level
, &driver_attr_version
,
609 &driver_attr_interface_version
,
612 static int __init
tpacpi_create_driver_attributes(struct device_driver
*drv
)
618 while (!res
&& i
< ARRAY_SIZE(tpacpi_driver_attributes
)) {
619 res
= driver_create_file(drv
, tpacpi_driver_attributes
[i
]);
626 static void tpacpi_remove_driver_attributes(struct device_driver
*drv
)
630 for(i
= 0; i
< ARRAY_SIZE(tpacpi_driver_attributes
); i
++)
631 driver_remove_file(drv
, tpacpi_driver_attributes
[i
]);
634 /*************************************************************************
635 * sysfs support helpers
638 struct attribute_set_obj
{
639 struct attribute_set s
;
641 } __attribute__((packed
));
643 static struct attribute_set
*create_attr_set(unsigned int max_members
,
646 struct attribute_set_obj
*sobj
;
648 if (max_members
== 0)
651 /* Allocates space for implicit NULL at the end too */
652 sobj
= kzalloc(sizeof(struct attribute_set_obj
) +
653 max_members
* sizeof(struct attribute
*),
657 sobj
->s
.max_members
= max_members
;
658 sobj
->s
.group
.attrs
= &sobj
->a
;
659 sobj
->s
.group
.name
= name
;
664 /* not multi-threaded safe, use it in a single thread per set */
665 static int add_to_attr_set(struct attribute_set
* s
, struct attribute
*attr
)
670 if (s
->members
>= s
->max_members
)
673 s
->group
.attrs
[s
->members
] = attr
;
679 static int add_many_to_attr_set(struct attribute_set
* s
,
680 struct attribute
**attr
,
685 for (i
= 0; i
< count
; i
++) {
686 res
= add_to_attr_set(s
, attr
[i
]);
694 static void delete_attr_set(struct attribute_set
* s
, struct kobject
*kobj
)
696 sysfs_remove_group(kobj
, &s
->group
);
700 static int parse_strtoul(const char *buf
,
701 unsigned long max
, unsigned long *value
)
705 *value
= simple_strtoul(buf
, &endp
, 0);
706 while (*endp
&& isspace(*endp
))
708 if (*endp
|| *value
> max
)
714 /****************************************************************************
715 ****************************************************************************
719 ****************************************************************************
720 ****************************************************************************/
722 /*************************************************************************
723 * thinkpad-acpi init subdriver
726 static int __init
thinkpad_acpi_driver_init(struct ibm_init_struct
*iibm
)
728 printk(IBM_INFO
"%s v%s\n", IBM_DESC
, IBM_VERSION
);
729 printk(IBM_INFO
"%s\n", IBM_URL
);
731 printk(IBM_INFO
"ThinkPad BIOS %s, EC %s\n",
732 (thinkpad_id
.bios_version_str
) ?
733 thinkpad_id
.bios_version_str
: "unknown",
734 (thinkpad_id
.ec_version_str
) ?
735 thinkpad_id
.ec_version_str
: "unknown");
737 if (thinkpad_id
.vendor
&& thinkpad_id
.model_str
)
738 printk(IBM_INFO
"%s %s\n",
739 (thinkpad_id
.vendor
== PCI_VENDOR_ID_IBM
) ?
740 "IBM" : ((thinkpad_id
.vendor
==
741 PCI_VENDOR_ID_LENOVO
) ?
742 "Lenovo" : "Unknown vendor"),
743 thinkpad_id
.model_str
);
748 static int thinkpad_acpi_driver_read(char *p
)
752 len
+= sprintf(p
+ len
, "driver:\t\t%s\n", IBM_DESC
);
753 len
+= sprintf(p
+ len
, "version:\t%s\n", IBM_VERSION
);
758 static struct ibm_struct thinkpad_acpi_driver_data
= {
760 .read
= thinkpad_acpi_driver_read
,
763 /*************************************************************************
767 static int hotkey_orig_status
;
768 static u32 hotkey_orig_mask
;
769 static u32 hotkey_all_mask
;
770 static u32 hotkey_reserved_mask
;
772 static u16
*hotkey_keycode_map
;
774 static struct attribute_set
*hotkey_dev_attributes
;
776 static int hotkey_get_wlsw(int *status
)
778 if (!acpi_evalf(hkey_handle
, status
, "WLSW", "d"))
783 /* sysfs hotkey enable ------------------------------------------------- */
784 static ssize_t
hotkey_enable_show(struct device
*dev
,
785 struct device_attribute
*attr
,
791 res
= hotkey_get(&status
, &mask
);
795 return snprintf(buf
, PAGE_SIZE
, "%d\n", status
);
798 static ssize_t
hotkey_enable_store(struct device
*dev
,
799 struct device_attribute
*attr
,
800 const char *buf
, size_t count
)
806 if (parse_strtoul(buf
, 1, &t
))
809 res
= hotkey_get(&status
, &mask
);
811 res
= hotkey_set(t
, mask
);
813 return (res
) ? res
: count
;
816 static struct device_attribute dev_attr_hotkey_enable
=
817 __ATTR(hotkey_enable
, S_IWUSR
| S_IRUGO
,
818 hotkey_enable_show
, hotkey_enable_store
);
820 /* sysfs hotkey mask --------------------------------------------------- */
821 static ssize_t
hotkey_mask_show(struct device
*dev
,
822 struct device_attribute
*attr
,
828 res
= hotkey_get(&status
, &mask
);
832 return snprintf(buf
, PAGE_SIZE
, "0x%08x\n", mask
);
835 static ssize_t
hotkey_mask_store(struct device
*dev
,
836 struct device_attribute
*attr
,
837 const char *buf
, size_t count
)
843 if (parse_strtoul(buf
, 0xffffffffUL
, &t
))
846 res
= hotkey_get(&status
, &mask
);
848 hotkey_set(status
, t
);
850 return (res
) ? res
: count
;
853 static struct device_attribute dev_attr_hotkey_mask
=
854 __ATTR(hotkey_mask
, S_IWUSR
| S_IRUGO
,
855 hotkey_mask_show
, hotkey_mask_store
);
857 /* sysfs hotkey bios_enabled ------------------------------------------- */
858 static ssize_t
hotkey_bios_enabled_show(struct device
*dev
,
859 struct device_attribute
*attr
,
862 return snprintf(buf
, PAGE_SIZE
, "%d\n", hotkey_orig_status
);
865 static struct device_attribute dev_attr_hotkey_bios_enabled
=
866 __ATTR(hotkey_bios_enabled
, S_IRUGO
, hotkey_bios_enabled_show
, NULL
);
868 /* sysfs hotkey bios_mask ---------------------------------------------- */
869 static ssize_t
hotkey_bios_mask_show(struct device
*dev
,
870 struct device_attribute
*attr
,
873 return snprintf(buf
, PAGE_SIZE
, "0x%08x\n", hotkey_orig_mask
);
876 static struct device_attribute dev_attr_hotkey_bios_mask
=
877 __ATTR(hotkey_bios_mask
, S_IRUGO
, hotkey_bios_mask_show
, NULL
);
879 /* sysfs hotkey all_mask ----------------------------------------------- */
880 static ssize_t
hotkey_all_mask_show(struct device
*dev
,
881 struct device_attribute
*attr
,
884 return snprintf(buf
, PAGE_SIZE
, "0x%08x\n", hotkey_all_mask
);
887 static struct device_attribute dev_attr_hotkey_all_mask
=
888 __ATTR(hotkey_all_mask
, S_IRUGO
, hotkey_all_mask_show
, NULL
);
890 /* sysfs hotkey recommended_mask --------------------------------------- */
891 static ssize_t
hotkey_recommended_mask_show(struct device
*dev
,
892 struct device_attribute
*attr
,
895 return snprintf(buf
, PAGE_SIZE
, "0x%08x\n",
896 hotkey_all_mask
& ~hotkey_reserved_mask
);
899 static struct device_attribute dev_attr_hotkey_recommended_mask
=
900 __ATTR(hotkey_recommended_mask
, S_IRUGO
,
901 hotkey_recommended_mask_show
, NULL
);
903 /* sysfs hotkey radio_sw ----------------------------------------------- */
904 static ssize_t
hotkey_radio_sw_show(struct device
*dev
,
905 struct device_attribute
*attr
,
909 res
= hotkey_get_wlsw(&s
);
913 return snprintf(buf
, PAGE_SIZE
, "%d\n", !!s
);
916 static struct device_attribute dev_attr_hotkey_radio_sw
=
917 __ATTR(hotkey_radio_sw
, S_IRUGO
, hotkey_radio_sw_show
, NULL
);
919 /* sysfs hotkey report_mode -------------------------------------------- */
920 static ssize_t
hotkey_report_mode_show(struct device
*dev
,
921 struct device_attribute
*attr
,
924 return snprintf(buf
, PAGE_SIZE
, "%d\n",
925 (hotkey_report_mode
!= 0) ? hotkey_report_mode
: 1);
928 static struct device_attribute dev_attr_hotkey_report_mode
=
929 __ATTR(hotkey_report_mode
, S_IRUGO
, hotkey_report_mode_show
, NULL
);
931 /* --------------------------------------------------------------------- */
933 static struct attribute
*hotkey_attributes
[] __initdata
= {
934 &dev_attr_hotkey_enable
.attr
,
935 &dev_attr_hotkey_report_mode
.attr
,
938 static struct attribute
*hotkey_mask_attributes
[] __initdata
= {
939 &dev_attr_hotkey_mask
.attr
,
940 &dev_attr_hotkey_bios_enabled
.attr
,
941 &dev_attr_hotkey_bios_mask
.attr
,
942 &dev_attr_hotkey_all_mask
.attr
,
943 &dev_attr_hotkey_recommended_mask
.attr
,
946 static int __init
hotkey_init(struct ibm_init_struct
*iibm
)
949 static u16 ibm_keycode_map
[] __initdata
= {
950 /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */
951 KEY_FN_F1
, KEY_FN_F2
, KEY_COFFEE
, KEY_SLEEP
,
952 KEY_WLAN
, KEY_FN_F6
, KEY_SWITCHVIDEOMODE
, KEY_FN_F8
,
953 KEY_FN_F9
, KEY_FN_F10
, KEY_FN_F11
, KEY_SUSPEND
,
954 /* Scan codes 0x0C to 0x0F: Other ACPI HKEY hot keys */
955 KEY_UNKNOWN
, /* 0x0C: FN+BACKSPACE */
956 KEY_UNKNOWN
, /* 0x0D: FN+INSERT */
957 KEY_UNKNOWN
, /* 0x0E: FN+DELETE */
958 KEY_RESERVED
, /* 0x0F: FN+HOME (brightness up) */
959 /* Scan codes 0x10 to 0x1F: Extended ACPI HKEY hot keys */
960 KEY_RESERVED
, /* 0x10: FN+END (brightness down) */
961 KEY_RESERVED
, /* 0x11: FN+PGUP (thinklight toggle) */
962 KEY_UNKNOWN
, /* 0x12: FN+PGDOWN */
963 KEY_ZOOM
, /* 0x13: FN+SPACE (zoom) */
964 KEY_RESERVED
, /* 0x14: VOLUME UP */
965 KEY_RESERVED
, /* 0x15: VOLUME DOWN */
966 KEY_RESERVED
, /* 0x16: MUTE */
967 KEY_VENDOR
, /* 0x17: Thinkpad/AccessIBM/Lenovo */
968 /* (assignments unknown, please report if found) */
969 KEY_UNKNOWN
, KEY_UNKNOWN
, KEY_UNKNOWN
, KEY_UNKNOWN
,
970 KEY_UNKNOWN
, KEY_UNKNOWN
, KEY_UNKNOWN
, KEY_UNKNOWN
,
972 static u16 lenovo_keycode_map
[] __initdata
= {
973 /* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */
974 KEY_FN_F1
, KEY_COFFEE
, KEY_BATTERY
, KEY_SLEEP
,
975 KEY_WLAN
, KEY_FN_F6
, KEY_SWITCHVIDEOMODE
, KEY_FN_F8
,
976 KEY_FN_F9
, KEY_FN_F10
, KEY_FN_F11
, KEY_SUSPEND
,
977 /* Scan codes 0x0C to 0x0F: Other ACPI HKEY hot keys */
978 KEY_UNKNOWN
, /* 0x0C: FN+BACKSPACE */
979 KEY_UNKNOWN
, /* 0x0D: FN+INSERT */
980 KEY_UNKNOWN
, /* 0x0E: FN+DELETE */
981 KEY_BRIGHTNESSUP
, /* 0x0F: FN+HOME (brightness up) */
982 /* Scan codes 0x10 to 0x1F: Extended ACPI HKEY hot keys */
983 KEY_BRIGHTNESSDOWN
, /* 0x10: FN+END (brightness down) */
984 KEY_RESERVED
, /* 0x11: FN+PGUP (thinklight toggle) */
985 KEY_UNKNOWN
, /* 0x12: FN+PGDOWN */
986 KEY_ZOOM
, /* 0x13: FN+SPACE (zoom) */
987 KEY_RESERVED
, /* 0x14: VOLUME UP */
988 KEY_RESERVED
, /* 0x15: VOLUME DOWN */
989 KEY_RESERVED
, /* 0x16: MUTE */
990 KEY_VENDOR
, /* 0x17: Thinkpad/AccessIBM/Lenovo */
991 /* (assignments unknown, please report if found) */
992 KEY_UNKNOWN
, KEY_UNKNOWN
, KEY_UNKNOWN
, KEY_UNKNOWN
,
993 KEY_UNKNOWN
, KEY_UNKNOWN
, KEY_UNKNOWN
, KEY_UNKNOWN
,
996 #define TPACPI_HOTKEY_MAP_LEN ARRAY_SIZE(ibm_keycode_map)
997 #define TPACPI_HOTKEY_MAP_SIZE sizeof(ibm_keycode_map)
998 #define TPACPI_HOTKEY_MAP_TYPESIZE sizeof(ibm_keycode_map[0])
1004 vdbg_printk(TPACPI_DBG_INIT
, "initializing hotkey subdriver\n");
1006 BUG_ON(!tpacpi_inputdev
);
1008 IBM_ACPIHANDLE_INIT(hkey
);
1009 mutex_init(&hotkey_mutex
);
1011 /* hotkey not supported on 570 */
1012 tp_features
.hotkey
= hkey_handle
!= NULL
;
1014 vdbg_printk(TPACPI_DBG_INIT
, "hotkeys are %s\n",
1015 str_supported(tp_features
.hotkey
));
1017 if (tp_features
.hotkey
) {
1018 hotkey_dev_attributes
= create_attr_set(8, NULL
);
1019 if (!hotkey_dev_attributes
)
1021 res
= add_many_to_attr_set(hotkey_dev_attributes
,
1023 ARRAY_SIZE(hotkey_attributes
));
1027 /* mask not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p,
1028 A30, R30, R31, T20-22, X20-21, X22-24. Detected by checking
1029 for HKEY interface version 0x100 */
1030 if (acpi_evalf(hkey_handle
, &hkeyv
, "MHKV", "qd")) {
1031 if ((hkeyv
>> 8) != 1) {
1032 printk(IBM_ERR
"unknown version of the "
1033 "HKEY interface: 0x%x\n", hkeyv
);
1034 printk(IBM_ERR
"please report this to %s\n",
1038 * MHKV 0x100 in A31, R40, R40e,
1039 * T4x, X31, and later
1041 tp_features
.hotkey_mask
= 1;
1045 vdbg_printk(TPACPI_DBG_INIT
, "hotkey masks are %s\n",
1046 str_supported(tp_features
.hotkey_mask
));
1048 if (tp_features
.hotkey_mask
) {
1049 if (!acpi_evalf(hkey_handle
, &hotkey_all_mask
,
1052 "missing MHKA handler, "
1053 "please report this to %s\n",
1055 hotkey_all_mask
= 0x080cU
; /* FN+F12, FN+F4, FN+F3 */
1059 res
= hotkey_get(&hotkey_orig_status
, &hotkey_orig_mask
);
1060 if (!res
&& tp_features
.hotkey_mask
) {
1061 res
= add_many_to_attr_set(hotkey_dev_attributes
,
1062 hotkey_mask_attributes
,
1063 ARRAY_SIZE(hotkey_mask_attributes
));
1066 /* Not all thinkpads have a hardware radio switch */
1067 if (!res
&& acpi_evalf(hkey_handle
, &status
, "WLSW", "qd")) {
1068 tp_features
.hotkey_wlsw
= 1;
1070 "radio switch found; radios are %s\n",
1071 enabled(status
, 0));
1072 res
= add_to_attr_set(hotkey_dev_attributes
,
1073 &dev_attr_hotkey_radio_sw
.attr
);
1077 res
= register_attr_set_with_sysfs(
1078 hotkey_dev_attributes
,
1079 &tpacpi_pdev
->dev
.kobj
);
1083 /* Set up key map */
1085 hotkey_keycode_map
= kmalloc(TPACPI_HOTKEY_MAP_SIZE
,
1087 if (!hotkey_keycode_map
) {
1088 printk(IBM_ERR
"failed to allocate memory for key map\n");
1092 if (thinkpad_id
.vendor
== PCI_VENDOR_ID_LENOVO
) {
1093 dbg_printk(TPACPI_DBG_INIT
,
1094 "using Lenovo default hot key map\n");
1095 memcpy(hotkey_keycode_map
, &lenovo_keycode_map
,
1096 TPACPI_HOTKEY_MAP_SIZE
);
1098 dbg_printk(TPACPI_DBG_INIT
,
1099 "using IBM default hot key map\n");
1100 memcpy(hotkey_keycode_map
, &ibm_keycode_map
,
1101 TPACPI_HOTKEY_MAP_SIZE
);
1104 set_bit(EV_KEY
, tpacpi_inputdev
->evbit
);
1105 set_bit(EV_MSC
, tpacpi_inputdev
->evbit
);
1106 set_bit(MSC_SCAN
, tpacpi_inputdev
->mscbit
);
1107 tpacpi_inputdev
->keycodesize
= TPACPI_HOTKEY_MAP_TYPESIZE
;
1108 tpacpi_inputdev
->keycodemax
= TPACPI_HOTKEY_MAP_LEN
;
1109 tpacpi_inputdev
->keycode
= hotkey_keycode_map
;
1110 for (i
= 0; i
< TPACPI_HOTKEY_MAP_LEN
; i
++) {
1111 if (hotkey_keycode_map
[i
] != KEY_RESERVED
) {
1112 set_bit(hotkey_keycode_map
[i
],
1113 tpacpi_inputdev
->keybit
);
1115 if (i
< sizeof(hotkey_reserved_mask
)*8)
1116 hotkey_reserved_mask
|= 1 << i
;
1120 if (tp_features
.hotkey_wlsw
) {
1121 set_bit(EV_SW
, tpacpi_inputdev
->evbit
);
1122 set_bit(SW_RADIO
, tpacpi_inputdev
->swbit
);
1125 dbg_printk(TPACPI_DBG_INIT
,
1126 "enabling hot key handling\n");
1127 res
= hotkey_set(1, (hotkey_all_mask
& ~hotkey_reserved_mask
)
1128 | hotkey_orig_mask
);
1132 dbg_printk(TPACPI_DBG_INIT
,
1133 "legacy hot key reporting over procfs %s\n",
1134 (hotkey_report_mode
< 2) ?
1135 "enabled" : "disabled");
1138 return (tp_features
.hotkey
)? 0 : 1;
1141 static void hotkey_exit(void)
1145 if (tp_features
.hotkey
) {
1146 dbg_printk(TPACPI_DBG_EXIT
, "restoring original hotkey mask\n");
1147 res
= hotkey_set(hotkey_orig_status
, hotkey_orig_mask
);
1149 printk(IBM_ERR
"failed to restore hotkey to BIOS defaults\n");
1152 if (hotkey_dev_attributes
) {
1153 delete_attr_set(hotkey_dev_attributes
, &tpacpi_pdev
->dev
.kobj
);
1154 hotkey_dev_attributes
= NULL
;
1158 static void tpacpi_input_send_key(unsigned int scancode
,
1159 unsigned int keycode
)
1161 if (keycode
!= KEY_RESERVED
) {
1162 mutex_lock(&tpacpi_inputdev_send_mutex
);
1164 input_report_key(tpacpi_inputdev
, keycode
, 1);
1165 if (keycode
== KEY_UNKNOWN
)
1166 input_event(tpacpi_inputdev
, EV_MSC
, MSC_SCAN
,
1168 input_sync(tpacpi_inputdev
);
1170 input_report_key(tpacpi_inputdev
, keycode
, 0);
1171 if (keycode
== KEY_UNKNOWN
)
1172 input_event(tpacpi_inputdev
, EV_MSC
, MSC_SCAN
,
1174 input_sync(tpacpi_inputdev
);
1176 mutex_unlock(&tpacpi_inputdev_send_mutex
);
1180 static void tpacpi_input_send_radiosw(void)
1184 mutex_lock(&tpacpi_inputdev_send_mutex
);
1186 if (tp_features
.hotkey_wlsw
&& !hotkey_get_wlsw(&wlsw
)) {
1187 input_report_switch(tpacpi_inputdev
,
1189 input_sync(tpacpi_inputdev
);
1192 mutex_unlock(&tpacpi_inputdev_send_mutex
);
1195 static void hotkey_notify(struct ibm_struct
*ibm
, u32 event
)
1198 unsigned int keycode
, scancode
;
1199 int send_acpi_ev
= 0;
1201 if (event
== 0x80 && acpi_evalf(hkey_handle
, &hkey
, "MHKP", "d")) {
1202 switch (hkey
>> 12) {
1204 /* 0x1000-0x1FFF: key presses */
1205 scancode
= hkey
& 0xfff;
1206 if (scancode
> 0 && scancode
< 0x21) {
1208 keycode
= hotkey_keycode_map
[scancode
];
1209 tpacpi_input_send_key(scancode
, keycode
);
1212 "hotkey 0x%04x out of range for keyboard map\n",
1218 /* 0x5000-0x5FFF: LID */
1219 /* we don't handle it through this path, just
1220 * eat up known LID events */
1221 if (hkey
!= 0x5001 && hkey
!= 0x5002) {
1223 "unknown LID-related hotkey event: 0x%04x\n",
1229 /* 0x7000-0x7FFF: misc */
1230 if (tp_features
.hotkey_wlsw
&& hkey
== 0x7000) {
1231 tpacpi_input_send_radiosw();
1234 /* fallthrough to default */
1236 /* case 2: dock-related */
1237 /* 0x2305 - T43 waking up due to bay lever eject while aslept */
1238 /* case 3: ultra-bay related. maybe bay in dock? */
1239 /* 0x3003 - T43 after wake up by bay lever eject (0x2305) */
1240 printk(IBM_NOTICE
"unhandled HKEY event 0x%04x\n", hkey
);
1244 printk(IBM_ERR
"unknown hotkey notification event %d\n", event
);
1250 if (send_acpi_ev
|| hotkey_report_mode
< 2)
1251 acpi_bus_generate_proc_event(ibm
->acpi
->device
, event
, hkey
);
1253 /* netlink events */
1255 acpi_bus_generate_netlink_event(ibm
->acpi
->device
->pnp
.device_class
,
1256 ibm
->acpi
->device
->dev
.bus_id
,
1261 static void hotkey_resume(void)
1263 tpacpi_input_send_radiosw();
1267 * Call with hotkey_mutex held
1269 static int hotkey_get(int *status
, u32
*mask
)
1271 if (!acpi_evalf(hkey_handle
, status
, "DHKC", "d"))
1274 if (tp_features
.hotkey_mask
)
1275 if (!acpi_evalf(hkey_handle
, mask
, "DHKN", "d"))
1282 * Call with hotkey_mutex held
1284 static int hotkey_set(int status
, u32 mask
)
1288 if (!acpi_evalf(hkey_handle
, NULL
, "MHKC", "vd", status
))
1291 if (tp_features
.hotkey_mask
)
1292 for (i
= 0; i
< 32; i
++) {
1293 int bit
= ((1 << i
) & mask
) != 0;
1294 if (!acpi_evalf(hkey_handle
,
1295 NULL
, "MHKM", "vdd", i
+ 1, bit
))
1302 /* procfs -------------------------------------------------------------- */
1303 static int hotkey_read(char *p
)
1309 if (!tp_features
.hotkey
) {
1310 len
+= sprintf(p
+ len
, "status:\t\tnot supported\n");
1314 res
= mutex_lock_interruptible(&hotkey_mutex
);
1317 res
= hotkey_get(&status
, &mask
);
1318 mutex_unlock(&hotkey_mutex
);
1322 len
+= sprintf(p
+ len
, "status:\t\t%s\n", enabled(status
, 0));
1323 if (tp_features
.hotkey_mask
) {
1324 len
+= sprintf(p
+ len
, "mask:\t\t0x%08x\n", mask
);
1325 len
+= sprintf(p
+ len
,
1326 "commands:\tenable, disable, reset, <mask>\n");
1328 len
+= sprintf(p
+ len
, "mask:\t\tnot supported\n");
1329 len
+= sprintf(p
+ len
, "commands:\tenable, disable, reset\n");
1335 static int hotkey_write(char *buf
)
1342 if (!tp_features
.hotkey
)
1345 res
= mutex_lock_interruptible(&hotkey_mutex
);
1349 res
= hotkey_get(&status
, &mask
);
1354 while ((cmd
= next_cmd(&buf
))) {
1355 if (strlencmp(cmd
, "enable") == 0) {
1357 } else if (strlencmp(cmd
, "disable") == 0) {
1359 } else if (strlencmp(cmd
, "reset") == 0) {
1360 status
= hotkey_orig_status
;
1361 mask
= hotkey_orig_mask
;
1362 } else if (sscanf(cmd
, "0x%x", &mask
) == 1) {
1364 } else if (sscanf(cmd
, "%x", &mask
) == 1) {
1374 res
= hotkey_set(status
, mask
);
1377 mutex_unlock(&hotkey_mutex
);
1381 static const struct acpi_device_id ibm_htk_device_ids
[] = {
1386 static struct tp_acpi_drv_struct ibm_hotkey_acpidriver
= {
1387 .hid
= ibm_htk_device_ids
,
1388 .notify
= hotkey_notify
,
1389 .handle
= &hkey_handle
,
1390 .type
= ACPI_DEVICE_NOTIFY
,
1393 static struct ibm_struct hotkey_driver_data
= {
1395 .read
= hotkey_read
,
1396 .write
= hotkey_write
,
1397 .exit
= hotkey_exit
,
1398 .resume
= hotkey_resume
,
1399 .acpi
= &ibm_hotkey_acpidriver
,
1402 /*************************************************************************
1403 * Bluetooth subdriver
1406 /* sysfs bluetooth enable ---------------------------------------------- */
1407 static ssize_t
bluetooth_enable_show(struct device
*dev
,
1408 struct device_attribute
*attr
,
1413 status
= bluetooth_get_radiosw();
1417 return snprintf(buf
, PAGE_SIZE
, "%d\n", status
? 1 : 0);
1420 static ssize_t
bluetooth_enable_store(struct device
*dev
,
1421 struct device_attribute
*attr
,
1422 const char *buf
, size_t count
)
1427 if (parse_strtoul(buf
, 1, &t
))
1430 res
= bluetooth_set_radiosw(t
);
1432 return (res
) ? res
: count
;
1435 static struct device_attribute dev_attr_bluetooth_enable
=
1436 __ATTR(bluetooth_enable
, S_IWUSR
| S_IRUGO
,
1437 bluetooth_enable_show
, bluetooth_enable_store
);
1439 /* --------------------------------------------------------------------- */
1441 static struct attribute
*bluetooth_attributes
[] = {
1442 &dev_attr_bluetooth_enable
.attr
,
1446 static const struct attribute_group bluetooth_attr_group
= {
1447 .attrs
= bluetooth_attributes
,
1450 static int __init
bluetooth_init(struct ibm_init_struct
*iibm
)
1455 vdbg_printk(TPACPI_DBG_INIT
, "initializing bluetooth subdriver\n");
1457 IBM_ACPIHANDLE_INIT(hkey
);
1459 /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p,
1460 G4x, R30, R31, R40e, R50e, T20-22, X20-21 */
1461 tp_features
.bluetooth
= hkey_handle
&&
1462 acpi_evalf(hkey_handle
, &status
, "GBDC", "qd");
1464 vdbg_printk(TPACPI_DBG_INIT
, "bluetooth is %s, status 0x%02x\n",
1465 str_supported(tp_features
.bluetooth
),
1468 if (tp_features
.bluetooth
) {
1469 if (!(status
& TP_ACPI_BLUETOOTH_HWPRESENT
)) {
1470 /* no bluetooth hardware present in system */
1471 tp_features
.bluetooth
= 0;
1472 dbg_printk(TPACPI_DBG_INIT
,
1473 "bluetooth hardware not installed\n");
1475 res
= sysfs_create_group(&tpacpi_pdev
->dev
.kobj
,
1476 &bluetooth_attr_group
);
1482 return (tp_features
.bluetooth
)? 0 : 1;
1485 static void bluetooth_exit(void)
1487 sysfs_remove_group(&tpacpi_pdev
->dev
.kobj
,
1488 &bluetooth_attr_group
);
1491 static int bluetooth_get_radiosw(void)
1495 if (!tp_features
.bluetooth
)
1498 if (!acpi_evalf(hkey_handle
, &status
, "GBDC", "d"))
1501 return ((status
& TP_ACPI_BLUETOOTH_RADIOSSW
) != 0);
1504 static int bluetooth_set_radiosw(int radio_on
)
1508 if (!tp_features
.bluetooth
)
1511 if (!acpi_evalf(hkey_handle
, &status
, "GBDC", "d"))
1514 status
|= TP_ACPI_BLUETOOTH_RADIOSSW
;
1516 status
&= ~TP_ACPI_BLUETOOTH_RADIOSSW
;
1517 if (!acpi_evalf(hkey_handle
, NULL
, "SBDC", "vd", status
))
1523 /* procfs -------------------------------------------------------------- */
1524 static int bluetooth_read(char *p
)
1527 int status
= bluetooth_get_radiosw();
1529 if (!tp_features
.bluetooth
)
1530 len
+= sprintf(p
+ len
, "status:\t\tnot supported\n");
1532 len
+= sprintf(p
+ len
, "status:\t\t%s\n",
1533 (status
)? "enabled" : "disabled");
1534 len
+= sprintf(p
+ len
, "commands:\tenable, disable\n");
1540 static int bluetooth_write(char *buf
)
1544 if (!tp_features
.bluetooth
)
1547 while ((cmd
= next_cmd(&buf
))) {
1548 if (strlencmp(cmd
, "enable") == 0) {
1549 bluetooth_set_radiosw(1);
1550 } else if (strlencmp(cmd
, "disable") == 0) {
1551 bluetooth_set_radiosw(0);
1559 static struct ibm_struct bluetooth_driver_data
= {
1560 .name
= "bluetooth",
1561 .read
= bluetooth_read
,
1562 .write
= bluetooth_write
,
1563 .exit
= bluetooth_exit
,
1566 /*************************************************************************
1570 /* sysfs wan enable ---------------------------------------------------- */
1571 static ssize_t
wan_enable_show(struct device
*dev
,
1572 struct device_attribute
*attr
,
1577 status
= wan_get_radiosw();
1581 return snprintf(buf
, PAGE_SIZE
, "%d\n", status
? 1 : 0);
1584 static ssize_t
wan_enable_store(struct device
*dev
,
1585 struct device_attribute
*attr
,
1586 const char *buf
, size_t count
)
1591 if (parse_strtoul(buf
, 1, &t
))
1594 res
= wan_set_radiosw(t
);
1596 return (res
) ? res
: count
;
1599 static struct device_attribute dev_attr_wan_enable
=
1600 __ATTR(wwan_enable
, S_IWUSR
| S_IRUGO
,
1601 wan_enable_show
, wan_enable_store
);
1603 /* --------------------------------------------------------------------- */
1605 static struct attribute
*wan_attributes
[] = {
1606 &dev_attr_wan_enable
.attr
,
1610 static const struct attribute_group wan_attr_group
= {
1611 .attrs
= wan_attributes
,
1614 static int __init
wan_init(struct ibm_init_struct
*iibm
)
1619 vdbg_printk(TPACPI_DBG_INIT
, "initializing wan subdriver\n");
1621 IBM_ACPIHANDLE_INIT(hkey
);
1623 tp_features
.wan
= hkey_handle
&&
1624 acpi_evalf(hkey_handle
, &status
, "GWAN", "qd");
1626 vdbg_printk(TPACPI_DBG_INIT
, "wan is %s, status 0x%02x\n",
1627 str_supported(tp_features
.wan
),
1630 if (tp_features
.wan
) {
1631 if (!(status
& TP_ACPI_WANCARD_HWPRESENT
)) {
1632 /* no wan hardware present in system */
1633 tp_features
.wan
= 0;
1634 dbg_printk(TPACPI_DBG_INIT
,
1635 "wan hardware not installed\n");
1637 res
= sysfs_create_group(&tpacpi_pdev
->dev
.kobj
,
1644 return (tp_features
.wan
)? 0 : 1;
1647 static void wan_exit(void)
1649 sysfs_remove_group(&tpacpi_pdev
->dev
.kobj
,
1653 static int wan_get_radiosw(void)
1657 if (!tp_features
.wan
)
1660 if (!acpi_evalf(hkey_handle
, &status
, "GWAN", "d"))
1663 return ((status
& TP_ACPI_WANCARD_RADIOSSW
) != 0);
1666 static int wan_set_radiosw(int radio_on
)
1670 if (!tp_features
.wan
)
1673 if (!acpi_evalf(hkey_handle
, &status
, "GWAN", "d"))
1676 status
|= TP_ACPI_WANCARD_RADIOSSW
;
1678 status
&= ~TP_ACPI_WANCARD_RADIOSSW
;
1679 if (!acpi_evalf(hkey_handle
, NULL
, "SWAN", "vd", status
))
1685 /* procfs -------------------------------------------------------------- */
1686 static int wan_read(char *p
)
1689 int status
= wan_get_radiosw();
1691 if (!tp_features
.wan
)
1692 len
+= sprintf(p
+ len
, "status:\t\tnot supported\n");
1694 len
+= sprintf(p
+ len
, "status:\t\t%s\n",
1695 (status
)? "enabled" : "disabled");
1696 len
+= sprintf(p
+ len
, "commands:\tenable, disable\n");
1702 static int wan_write(char *buf
)
1706 if (!tp_features
.wan
)
1709 while ((cmd
= next_cmd(&buf
))) {
1710 if (strlencmp(cmd
, "enable") == 0) {
1712 } else if (strlencmp(cmd
, "disable") == 0) {
1721 static struct ibm_struct wan_driver_data
= {
1726 .flags
.experimental
= 1,
1729 /*************************************************************************
1733 static enum video_access_mode video_supported
;
1734 static int video_orig_autosw
;
1736 IBM_HANDLE(vid
, root
, "\\_SB.PCI.AGP.VGA", /* 570 */
1737 "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */
1738 "\\_SB.PCI0.VID0", /* 770e */
1739 "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */
1740 "\\_SB.PCI0.AGP.VID", /* all others */
1743 IBM_HANDLE(vid2
, root
, "\\_SB.PCI0.AGPB.VID"); /* G41 */
1745 static int __init
video_init(struct ibm_init_struct
*iibm
)
1749 vdbg_printk(TPACPI_DBG_INIT
, "initializing video subdriver\n");
1751 IBM_ACPIHANDLE_INIT(vid
);
1752 IBM_ACPIHANDLE_INIT(vid2
);
1754 if (vid2_handle
&& acpi_evalf(NULL
, &ivga
, "\\IVGA", "d") && ivga
)
1755 /* G41, assume IVGA doesn't change */
1756 vid_handle
= vid2_handle
;
1759 /* video switching not supported on R30, R31 */
1760 video_supported
= TPACPI_VIDEO_NONE
;
1761 else if (acpi_evalf(vid_handle
, &video_orig_autosw
, "SWIT", "qd"))
1763 video_supported
= TPACPI_VIDEO_570
;
1764 else if (acpi_evalf(vid_handle
, &video_orig_autosw
, "^VADL", "qd"))
1765 /* 600e/x, 770e, 770x */
1766 video_supported
= TPACPI_VIDEO_770
;
1769 video_supported
= TPACPI_VIDEO_NEW
;
1771 vdbg_printk(TPACPI_DBG_INIT
, "video is %s, mode %d\n",
1772 str_supported(video_supported
!= TPACPI_VIDEO_NONE
),
1775 return (video_supported
!= TPACPI_VIDEO_NONE
)? 0 : 1;
1778 static void video_exit(void)
1780 dbg_printk(TPACPI_DBG_EXIT
,
1781 "restoring original video autoswitch mode\n");
1782 if (video_autosw_set(video_orig_autosw
))
1783 printk(IBM_ERR
"error while trying to restore original "
1784 "video autoswitch mode\n");
1787 static int video_outputsw_get(void)
1792 switch (video_supported
) {
1793 case TPACPI_VIDEO_570
:
1794 if (!acpi_evalf(NULL
, &i
, "\\_SB.PHS", "dd",
1795 TP_ACPI_VIDEO_570_PHSCMD
))
1797 status
= i
& TP_ACPI_VIDEO_570_PHSMASK
;
1799 case TPACPI_VIDEO_770
:
1800 if (!acpi_evalf(NULL
, &i
, "\\VCDL", "d"))
1803 status
|= TP_ACPI_VIDEO_S_LCD
;
1804 if (!acpi_evalf(NULL
, &i
, "\\VCDC", "d"))
1807 status
|= TP_ACPI_VIDEO_S_CRT
;
1809 case TPACPI_VIDEO_NEW
:
1810 if (!acpi_evalf(NULL
, NULL
, "\\VUPS", "vd", 1) ||
1811 !acpi_evalf(NULL
, &i
, "\\VCDC", "d"))
1814 status
|= TP_ACPI_VIDEO_S_CRT
;
1816 if (!acpi_evalf(NULL
, NULL
, "\\VUPS", "vd", 0) ||
1817 !acpi_evalf(NULL
, &i
, "\\VCDL", "d"))
1820 status
|= TP_ACPI_VIDEO_S_LCD
;
1821 if (!acpi_evalf(NULL
, &i
, "\\VCDD", "d"))
1824 status
|= TP_ACPI_VIDEO_S_DVI
;
1833 static int video_outputsw_set(int status
)
1838 switch (video_supported
) {
1839 case TPACPI_VIDEO_570
:
1840 res
= acpi_evalf(NULL
, NULL
,
1841 "\\_SB.PHS2", "vdd",
1842 TP_ACPI_VIDEO_570_PHS2CMD
,
1843 status
| TP_ACPI_VIDEO_570_PHS2SET
);
1845 case TPACPI_VIDEO_770
:
1846 autosw
= video_autosw_get();
1850 res
= video_autosw_set(1);
1853 res
= acpi_evalf(vid_handle
, NULL
,
1854 "ASWT", "vdd", status
* 0x100, 0);
1855 if (!autosw
&& video_autosw_set(autosw
)) {
1856 printk(IBM_ERR
"video auto-switch left enabled due to error\n");
1860 case TPACPI_VIDEO_NEW
:
1861 res
= acpi_evalf(NULL
, NULL
, "\\VUPS", "vd", 0x80) &&
1862 acpi_evalf(NULL
, NULL
, "\\VSDS", "vdd", status
, 1);
1868 return (res
)? 0 : -EIO
;
1871 static int video_autosw_get(void)
1875 switch (video_supported
) {
1876 case TPACPI_VIDEO_570
:
1877 if (!acpi_evalf(vid_handle
, &autosw
, "SWIT", "d"))
1880 case TPACPI_VIDEO_770
:
1881 case TPACPI_VIDEO_NEW
:
1882 if (!acpi_evalf(vid_handle
, &autosw
, "^VDEE", "d"))
1892 static int video_autosw_set(int enable
)
1894 if (!acpi_evalf(vid_handle
, NULL
, "_DOS", "vd", (enable
)? 1 : 0))
1899 static int video_outputsw_cycle(void)
1901 int autosw
= video_autosw_get();
1907 switch (video_supported
) {
1908 case TPACPI_VIDEO_570
:
1909 res
= video_autosw_set(1);
1912 res
= acpi_evalf(ec_handle
, NULL
, "_Q16", "v");
1914 case TPACPI_VIDEO_770
:
1915 case TPACPI_VIDEO_NEW
:
1916 res
= video_autosw_set(1);
1919 res
= acpi_evalf(vid_handle
, NULL
, "VSWT", "v");
1924 if (!autosw
&& video_autosw_set(autosw
)) {
1925 printk(IBM_ERR
"video auto-switch left enabled due to error\n");
1929 return (res
)? 0 : -EIO
;
1932 static int video_expand_toggle(void)
1934 switch (video_supported
) {
1935 case TPACPI_VIDEO_570
:
1936 return acpi_evalf(ec_handle
, NULL
, "_Q17", "v")?
1938 case TPACPI_VIDEO_770
:
1939 return acpi_evalf(vid_handle
, NULL
, "VEXP", "v")?
1941 case TPACPI_VIDEO_NEW
:
1942 return acpi_evalf(NULL
, NULL
, "\\VEXP", "v")?
1950 static int video_read(char *p
)
1955 if (video_supported
== TPACPI_VIDEO_NONE
) {
1956 len
+= sprintf(p
+ len
, "status:\t\tnot supported\n");
1960 status
= video_outputsw_get();
1964 autosw
= video_autosw_get();
1968 len
+= sprintf(p
+ len
, "status:\t\tsupported\n");
1969 len
+= sprintf(p
+ len
, "lcd:\t\t%s\n", enabled(status
, 0));
1970 len
+= sprintf(p
+ len
, "crt:\t\t%s\n", enabled(status
, 1));
1971 if (video_supported
== TPACPI_VIDEO_NEW
)
1972 len
+= sprintf(p
+ len
, "dvi:\t\t%s\n", enabled(status
, 3));
1973 len
+= sprintf(p
+ len
, "auto:\t\t%s\n", enabled(autosw
, 0));
1974 len
+= sprintf(p
+ len
, "commands:\tlcd_enable, lcd_disable\n");
1975 len
+= sprintf(p
+ len
, "commands:\tcrt_enable, crt_disable\n");
1976 if (video_supported
== TPACPI_VIDEO_NEW
)
1977 len
+= sprintf(p
+ len
, "commands:\tdvi_enable, dvi_disable\n");
1978 len
+= sprintf(p
+ len
, "commands:\tauto_enable, auto_disable\n");
1979 len
+= sprintf(p
+ len
, "commands:\tvideo_switch, expand_toggle\n");
1984 static int video_write(char *buf
)
1987 int enable
, disable
, status
;
1990 if (video_supported
== TPACPI_VIDEO_NONE
)
1996 while ((cmd
= next_cmd(&buf
))) {
1997 if (strlencmp(cmd
, "lcd_enable") == 0) {
1998 enable
|= TP_ACPI_VIDEO_S_LCD
;
1999 } else if (strlencmp(cmd
, "lcd_disable") == 0) {
2000 disable
|= TP_ACPI_VIDEO_S_LCD
;
2001 } else if (strlencmp(cmd
, "crt_enable") == 0) {
2002 enable
|= TP_ACPI_VIDEO_S_CRT
;
2003 } else if (strlencmp(cmd
, "crt_disable") == 0) {
2004 disable
|= TP_ACPI_VIDEO_S_CRT
;
2005 } else if (video_supported
== TPACPI_VIDEO_NEW
&&
2006 strlencmp(cmd
, "dvi_enable") == 0) {
2007 enable
|= TP_ACPI_VIDEO_S_DVI
;
2008 } else if (video_supported
== TPACPI_VIDEO_NEW
&&
2009 strlencmp(cmd
, "dvi_disable") == 0) {
2010 disable
|= TP_ACPI_VIDEO_S_DVI
;
2011 } else if (strlencmp(cmd
, "auto_enable") == 0) {
2012 res
= video_autosw_set(1);
2015 } else if (strlencmp(cmd
, "auto_disable") == 0) {
2016 res
= video_autosw_set(0);
2019 } else if (strlencmp(cmd
, "video_switch") == 0) {
2020 res
= video_outputsw_cycle();
2023 } else if (strlencmp(cmd
, "expand_toggle") == 0) {
2024 res
= video_expand_toggle();
2031 if (enable
|| disable
) {
2032 status
= video_outputsw_get();
2035 res
= video_outputsw_set((status
& ~disable
) | enable
);
2043 static struct ibm_struct video_driver_data
= {
2046 .write
= video_write
,
2050 /*************************************************************************
2051 * Light (thinklight) subdriver
2054 IBM_HANDLE(lght
, root
, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */
2055 IBM_HANDLE(ledb
, ec
, "LEDB"); /* G4x */
2057 static int __init
light_init(struct ibm_init_struct
*iibm
)
2059 vdbg_printk(TPACPI_DBG_INIT
, "initializing light subdriver\n");
2061 IBM_ACPIHANDLE_INIT(ledb
);
2062 IBM_ACPIHANDLE_INIT(lght
);
2063 IBM_ACPIHANDLE_INIT(cmos
);
2065 /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */
2066 tp_features
.light
= (cmos_handle
|| lght_handle
) && !ledb_handle
;
2068 if (tp_features
.light
)
2069 /* light status not supported on
2070 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */
2071 tp_features
.light_status
=
2072 acpi_evalf(ec_handle
, NULL
, "KBLT", "qv");
2074 vdbg_printk(TPACPI_DBG_INIT
, "light is %s\n",
2075 str_supported(tp_features
.light
));
2077 return (tp_features
.light
)? 0 : 1;
2080 static int light_read(char *p
)
2085 if (!tp_features
.light
) {
2086 len
+= sprintf(p
+ len
, "status:\t\tnot supported\n");
2087 } else if (!tp_features
.light_status
) {
2088 len
+= sprintf(p
+ len
, "status:\t\tunknown\n");
2089 len
+= sprintf(p
+ len
, "commands:\ton, off\n");
2091 if (!acpi_evalf(ec_handle
, &status
, "KBLT", "d"))
2093 len
+= sprintf(p
+ len
, "status:\t\t%s\n", onoff(status
, 0));
2094 len
+= sprintf(p
+ len
, "commands:\ton, off\n");
2100 static int light_write(char *buf
)
2102 int cmos_cmd
, lght_cmd
;
2106 if (!tp_features
.light
)
2109 while ((cmd
= next_cmd(&buf
))) {
2110 if (strlencmp(cmd
, "on") == 0) {
2113 } else if (strlencmp(cmd
, "off") == 0) {
2119 success
= cmos_handle
?
2120 acpi_evalf(cmos_handle
, NULL
, NULL
, "vd", cmos_cmd
) :
2121 acpi_evalf(lght_handle
, NULL
, NULL
, "vd", lght_cmd
);
2129 static struct ibm_struct light_driver_data
= {
2132 .write
= light_write
,
2135 /*************************************************************************
2139 #ifdef CONFIG_THINKPAD_ACPI_DOCK
2141 IBM_HANDLE(dock
, root
, "\\_SB.GDCK", /* X30, X31, X40 */
2142 "\\_SB.PCI0.DOCK", /* 600e/x,770e,770x,A2xm/p,T20-22,X20-21 */
2143 "\\_SB.PCI0.PCI1.DOCK", /* all others */
2144 "\\_SB.PCI.ISA.SLCE", /* 570 */
2145 ); /* A21e,G4x,R30,R31,R32,R40,R40e,R50e */
2147 /* don't list other alternatives as we install a notify handler on the 570 */
2148 IBM_HANDLE(pci
, root
, "\\_SB.PCI"); /* 570 */
2150 static const struct acpi_device_id ibm_pci_device_ids
[] = {
2151 {PCI_ROOT_HID_STRING
, 0},
2155 static struct tp_acpi_drv_struct ibm_dock_acpidriver
[2] = {
2157 .notify
= dock_notify
,
2158 .handle
= &dock_handle
,
2159 .type
= ACPI_SYSTEM_NOTIFY
,
2162 /* THIS ONE MUST NEVER BE USED FOR DRIVER AUTOLOADING.
2163 * We just use it to get notifications of dock hotplug
2164 * in very old thinkpads */
2165 .hid
= ibm_pci_device_ids
,
2166 .notify
= dock_notify
,
2167 .handle
= &pci_handle
,
2168 .type
= ACPI_SYSTEM_NOTIFY
,
2172 static struct ibm_struct dock_driver_data
[2] = {
2176 .write
= dock_write
,
2177 .acpi
= &ibm_dock_acpidriver
[0],
2181 .acpi
= &ibm_dock_acpidriver
[1],
2185 #define dock_docked() (_sta(dock_handle) & 1)
2187 static int __init
dock_init(struct ibm_init_struct
*iibm
)
2189 vdbg_printk(TPACPI_DBG_INIT
, "initializing dock subdriver\n");
2191 IBM_ACPIHANDLE_INIT(dock
);
2193 vdbg_printk(TPACPI_DBG_INIT
, "dock is %s\n",
2194 str_supported(dock_handle
!= NULL
));
2196 return (dock_handle
)? 0 : 1;
2199 static int __init
dock_init2(struct ibm_init_struct
*iibm
)
2203 vdbg_printk(TPACPI_DBG_INIT
, "initializing dock subdriver part 2\n");
2205 if (dock_driver_data
[0].flags
.acpi_driver_registered
&&
2206 dock_driver_data
[0].flags
.acpi_notify_installed
) {
2207 IBM_ACPIHANDLE_INIT(pci
);
2208 dock2_needed
= (pci_handle
!= NULL
);
2209 vdbg_printk(TPACPI_DBG_INIT
,
2210 "dock PCI handler for the TP 570 is %s\n",
2211 str_supported(dock2_needed
));
2213 vdbg_printk(TPACPI_DBG_INIT
,
2214 "dock subdriver part 2 not required\n");
2218 return (dock2_needed
)? 0 : 1;
2221 static void dock_notify(struct ibm_struct
*ibm
, u32 event
)
2223 int docked
= dock_docked();
2224 int pci
= ibm
->acpi
->hid
&& ibm
->acpi
->device
&&
2225 acpi_match_device_ids(ibm
->acpi
->device
, ibm_pci_device_ids
);
2228 if (event
== 1 && !pci
) /* 570 */
2229 data
= 1; /* button */
2230 else if (event
== 1 && pci
) /* 570 */
2231 data
= 3; /* dock */
2232 else if (event
== 3 && docked
)
2233 data
= 1; /* button */
2234 else if (event
== 3 && !docked
)
2235 data
= 2; /* undock */
2236 else if (event
== 0 && docked
)
2237 data
= 3; /* dock */
2239 printk(IBM_ERR
"unknown dock event %d, status %d\n",
2240 event
, _sta(dock_handle
));
2241 data
= 0; /* unknown */
2243 acpi_bus_generate_proc_event(ibm
->acpi
->device
, event
, data
);
2244 acpi_bus_generate_netlink_event(ibm
->acpi
->device
->pnp
.device_class
,
2245 ibm
->acpi
->device
->dev
.bus_id
,
2249 static int dock_read(char *p
)
2252 int docked
= dock_docked();
2255 len
+= sprintf(p
+ len
, "status:\t\tnot supported\n");
2257 len
+= sprintf(p
+ len
, "status:\t\tundocked\n");
2259 len
+= sprintf(p
+ len
, "status:\t\tdocked\n");
2260 len
+= sprintf(p
+ len
, "commands:\tdock, undock\n");
2266 static int dock_write(char *buf
)
2273 while ((cmd
= next_cmd(&buf
))) {
2274 if (strlencmp(cmd
, "undock") == 0) {
2275 if (!acpi_evalf(dock_handle
, NULL
, "_DCK", "vd", 0) ||
2276 !acpi_evalf(dock_handle
, NULL
, "_EJ0", "vd", 1))
2278 } else if (strlencmp(cmd
, "dock") == 0) {
2279 if (!acpi_evalf(dock_handle
, NULL
, "_DCK", "vd", 1))
2288 #endif /* CONFIG_THINKPAD_ACPI_DOCK */
2290 /*************************************************************************
2294 #ifdef CONFIG_THINKPAD_ACPI_BAY
2295 IBM_HANDLE(bay
, root
, "\\_SB.PCI.IDE.SECN.MAST", /* 570 */
2296 "\\_SB.PCI0.IDE0.IDES.IDSM", /* 600e/x, 770e, 770x */
2297 "\\_SB.PCI0.SATA.SCND.MSTR", /* T60, X60, Z60 */
2298 "\\_SB.PCI0.IDE0.SCND.MSTR", /* all others */
2299 ); /* A21e, R30, R31 */
2300 IBM_HANDLE(bay_ej
, bay
, "_EJ3", /* 600e/x, A2xm/p, A3x */
2301 "_EJ0", /* all others */
2302 ); /* 570,A21e,G4x,R30,R31,R32,R40e,R50e */
2303 IBM_HANDLE(bay2
, root
, "\\_SB.PCI0.IDE0.PRIM.SLAV", /* A3x, R32 */
2304 "\\_SB.PCI0.IDE0.IDEP.IDPS", /* 600e/x, 770e, 770x */
2306 IBM_HANDLE(bay2_ej
, bay2
, "_EJ3", /* 600e/x, 770e, A3x */
2310 static int __init
bay_init(struct ibm_init_struct
*iibm
)
2312 vdbg_printk(TPACPI_DBG_INIT
, "initializing bay subdriver\n");
2314 IBM_ACPIHANDLE_INIT(bay
);
2316 IBM_ACPIHANDLE_INIT(bay_ej
);
2317 IBM_ACPIHANDLE_INIT(bay2
);
2319 IBM_ACPIHANDLE_INIT(bay2_ej
);
2321 tp_features
.bay_status
= bay_handle
&&
2322 acpi_evalf(bay_handle
, NULL
, "_STA", "qv");
2323 tp_features
.bay_status2
= bay2_handle
&&
2324 acpi_evalf(bay2_handle
, NULL
, "_STA", "qv");
2326 tp_features
.bay_eject
= bay_handle
&& bay_ej_handle
&&
2327 (strlencmp(bay_ej_path
, "_EJ0") == 0 || experimental
);
2328 tp_features
.bay_eject2
= bay2_handle
&& bay2_ej_handle
&&
2329 (strlencmp(bay2_ej_path
, "_EJ0") == 0 || experimental
);
2331 vdbg_printk(TPACPI_DBG_INIT
,
2332 "bay 1: status %s, eject %s; bay 2: status %s, eject %s\n",
2333 str_supported(tp_features
.bay_status
),
2334 str_supported(tp_features
.bay_eject
),
2335 str_supported(tp_features
.bay_status2
),
2336 str_supported(tp_features
.bay_eject2
));
2338 return (tp_features
.bay_status
|| tp_features
.bay_eject
||
2339 tp_features
.bay_status2
|| tp_features
.bay_eject2
)? 0 : 1;
2342 static void bay_notify(struct ibm_struct
*ibm
, u32 event
)
2344 acpi_bus_generate_proc_event(ibm
->acpi
->device
, event
, 0);
2345 acpi_bus_generate_netlink_event(ibm
->acpi
->device
->pnp
.device_class
,
2346 ibm
->acpi
->device
->dev
.bus_id
,
2350 #define bay_occupied(b) (_sta(b##_handle) & 1)
2352 static int bay_read(char *p
)
2355 int occupied
= bay_occupied(bay
);
2356 int occupied2
= bay_occupied(bay2
);
2359 len
+= sprintf(p
+ len
, "status:\t\t%s\n",
2360 tp_features
.bay_status
?
2361 (occupied
? "occupied" : "unoccupied") :
2363 if (tp_features
.bay_status2
)
2364 len
+= sprintf(p
+ len
, "status2:\t%s\n", occupied2
?
2365 "occupied" : "unoccupied");
2367 eject
= tp_features
.bay_eject
&& occupied
;
2368 eject2
= tp_features
.bay_eject2
&& occupied2
;
2370 if (eject
&& eject2
)
2371 len
+= sprintf(p
+ len
, "commands:\teject, eject2\n");
2373 len
+= sprintf(p
+ len
, "commands:\teject\n");
2375 len
+= sprintf(p
+ len
, "commands:\teject2\n");
2380 static int bay_write(char *buf
)
2384 if (!tp_features
.bay_eject
&& !tp_features
.bay_eject2
)
2387 while ((cmd
= next_cmd(&buf
))) {
2388 if (tp_features
.bay_eject
&& strlencmp(cmd
, "eject") == 0) {
2389 if (!acpi_evalf(bay_ej_handle
, NULL
, NULL
, "vd", 1))
2391 } else if (tp_features
.bay_eject2
&&
2392 strlencmp(cmd
, "eject2") == 0) {
2393 if (!acpi_evalf(bay2_ej_handle
, NULL
, NULL
, "vd", 1))
2402 static struct tp_acpi_drv_struct ibm_bay_acpidriver
= {
2403 .notify
= bay_notify
,
2404 .handle
= &bay_handle
,
2405 .type
= ACPI_SYSTEM_NOTIFY
,
2408 static struct ibm_struct bay_driver_data
= {
2412 .acpi
= &ibm_bay_acpidriver
,
2415 #endif /* CONFIG_THINKPAD_ACPI_BAY */
2417 /*************************************************************************
2421 /* sysfs cmos_command -------------------------------------------------- */
2422 static ssize_t
cmos_command_store(struct device
*dev
,
2423 struct device_attribute
*attr
,
2424 const char *buf
, size_t count
)
2426 unsigned long cmos_cmd
;
2429 if (parse_strtoul(buf
, 21, &cmos_cmd
))
2432 res
= issue_thinkpad_cmos_command(cmos_cmd
);
2433 return (res
)? res
: count
;
2436 static struct device_attribute dev_attr_cmos_command
=
2437 __ATTR(cmos_command
, S_IWUSR
, NULL
, cmos_command_store
);
2439 /* --------------------------------------------------------------------- */
2441 static int __init
cmos_init(struct ibm_init_struct
*iibm
)
2445 vdbg_printk(TPACPI_DBG_INIT
,
2446 "initializing cmos commands subdriver\n");
2448 IBM_ACPIHANDLE_INIT(cmos
);
2450 vdbg_printk(TPACPI_DBG_INIT
, "cmos commands are %s\n",
2451 str_supported(cmos_handle
!= NULL
));
2453 res
= device_create_file(&tpacpi_pdev
->dev
, &dev_attr_cmos_command
);
2457 return (cmos_handle
)? 0 : 1;
2460 static void cmos_exit(void)
2462 device_remove_file(&tpacpi_pdev
->dev
, &dev_attr_cmos_command
);
2465 static int cmos_read(char *p
)
2469 /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p,
2470 R30, R31, T20-22, X20-21 */
2472 len
+= sprintf(p
+ len
, "status:\t\tnot supported\n");
2474 len
+= sprintf(p
+ len
, "status:\t\tsupported\n");
2475 len
+= sprintf(p
+ len
, "commands:\t<cmd> (<cmd> is 0-21)\n");
2481 static int cmos_write(char *buf
)
2486 while ((cmd
= next_cmd(&buf
))) {
2487 if (sscanf(cmd
, "%u", &cmos_cmd
) == 1 &&
2488 cmos_cmd
>= 0 && cmos_cmd
<= 21) {
2493 res
= issue_thinkpad_cmos_command(cmos_cmd
);
2501 static struct ibm_struct cmos_driver_data
= {
2504 .write
= cmos_write
,
2508 /*************************************************************************
2512 static enum led_access_mode led_supported
;
2514 IBM_HANDLE(led
, ec
, "SLED", /* 570 */
2515 "SYSL", /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */
2516 "LED", /* all others */
2519 static int __init
led_init(struct ibm_init_struct
*iibm
)
2521 vdbg_printk(TPACPI_DBG_INIT
, "initializing LED subdriver\n");
2523 IBM_ACPIHANDLE_INIT(led
);
2526 /* led not supported on R30, R31 */
2527 led_supported
= TPACPI_LED_NONE
;
2528 else if (strlencmp(led_path
, "SLED") == 0)
2530 led_supported
= TPACPI_LED_570
;
2531 else if (strlencmp(led_path
, "SYSL") == 0)
2532 /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */
2533 led_supported
= TPACPI_LED_OLD
;
2536 led_supported
= TPACPI_LED_NEW
;
2538 vdbg_printk(TPACPI_DBG_INIT
, "LED commands are %s, mode %d\n",
2539 str_supported(led_supported
), led_supported
);
2541 return (led_supported
!= TPACPI_LED_NONE
)? 0 : 1;
2544 #define led_status(s) ((s) == 0 ? "off" : ((s) == 1 ? "on" : "blinking"))
2546 static int led_read(char *p
)
2550 if (!led_supported
) {
2551 len
+= sprintf(p
+ len
, "status:\t\tnot supported\n");
2554 len
+= sprintf(p
+ len
, "status:\t\tsupported\n");
2556 if (led_supported
== TPACPI_LED_570
) {
2559 for (i
= 0; i
< 8; i
++) {
2560 if (!acpi_evalf(ec_handle
,
2561 &status
, "GLED", "dd", 1 << i
))
2563 len
+= sprintf(p
+ len
, "%d:\t\t%s\n",
2564 i
, led_status(status
));
2568 len
+= sprintf(p
+ len
, "commands:\t"
2569 "<led> on, <led> off, <led> blink (<led> is 0-7)\n");
2574 /* off, on, blink */
2575 static const int led_sled_arg1
[] = { 0, 1, 3 };
2576 static const int led_exp_hlbl
[] = { 0, 0, 1 }; /* led# * */
2577 static const int led_exp_hlcl
[] = { 0, 1, 1 }; /* led# * */
2578 static const int led_led_arg1
[] = { 0, 0x80, 0xc0 };
2580 static int led_write(char *buf
)
2588 while ((cmd
= next_cmd(&buf
))) {
2589 if (sscanf(cmd
, "%d", &led
) != 1 || led
< 0 || led
> 7)
2592 if (strstr(cmd
, "off")) {
2594 } else if (strstr(cmd
, "on")) {
2596 } else if (strstr(cmd
, "blink")) {
2601 if (led_supported
== TPACPI_LED_570
) {
2604 if (!acpi_evalf(led_handle
, NULL
, NULL
, "vdd",
2605 led
, led_sled_arg1
[ind
]))
2607 } else if (led_supported
== TPACPI_LED_OLD
) {
2608 /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */
2610 ret
= ec_write(TPACPI_LED_EC_HLMS
, led
);
2613 ec_write(TPACPI_LED_EC_HLBL
,
2614 led
* led_exp_hlbl
[ind
]);
2617 ec_write(TPACPI_LED_EC_HLCL
,
2618 led
* led_exp_hlcl
[ind
]);
2623 if (!acpi_evalf(led_handle
, NULL
, NULL
, "vdd",
2624 led
, led_led_arg1
[ind
]))
2632 static struct ibm_struct led_driver_data
= {
2638 /*************************************************************************
2642 IBM_HANDLE(beep
, ec
, "BEEP"); /* all except R30, R31 */
2644 static int __init
beep_init(struct ibm_init_struct
*iibm
)
2646 vdbg_printk(TPACPI_DBG_INIT
, "initializing beep subdriver\n");
2648 IBM_ACPIHANDLE_INIT(beep
);
2650 vdbg_printk(TPACPI_DBG_INIT
, "beep is %s\n",
2651 str_supported(beep_handle
!= NULL
));
2653 return (beep_handle
)? 0 : 1;
2656 static int beep_read(char *p
)
2661 len
+= sprintf(p
+ len
, "status:\t\tnot supported\n");
2663 len
+= sprintf(p
+ len
, "status:\t\tsupported\n");
2664 len
+= sprintf(p
+ len
, "commands:\t<cmd> (<cmd> is 0-17)\n");
2670 static int beep_write(char *buf
)
2678 while ((cmd
= next_cmd(&buf
))) {
2679 if (sscanf(cmd
, "%u", &beep_cmd
) == 1 &&
2680 beep_cmd
>= 0 && beep_cmd
<= 17) {
2684 if (!acpi_evalf(beep_handle
, NULL
, NULL
, "vdd", beep_cmd
, 0))
2691 static struct ibm_struct beep_driver_data
= {
2694 .write
= beep_write
,
2697 /*************************************************************************
2701 static enum thermal_access_mode thermal_read_mode
;
2703 /* sysfs temp##_input -------------------------------------------------- */
2705 static ssize_t
thermal_temp_input_show(struct device
*dev
,
2706 struct device_attribute
*attr
,
2709 struct sensor_device_attribute
*sensor_attr
=
2710 to_sensor_dev_attr(attr
);
2711 int idx
= sensor_attr
->index
;
2715 res
= thermal_get_sensor(idx
, &value
);
2718 if (value
== TP_EC_THERMAL_TMP_NA
* 1000)
2721 return snprintf(buf
, PAGE_SIZE
, "%d\n", value
);
2724 #define THERMAL_SENSOR_ATTR_TEMP(_idxA, _idxB) \
2725 SENSOR_ATTR(temp##_idxA##_input, S_IRUGO, thermal_temp_input_show, NULL, _idxB)
2727 static struct sensor_device_attribute sensor_dev_attr_thermal_temp_input
[] = {
2728 THERMAL_SENSOR_ATTR_TEMP(1, 0),
2729 THERMAL_SENSOR_ATTR_TEMP(2, 1),
2730 THERMAL_SENSOR_ATTR_TEMP(3, 2),
2731 THERMAL_SENSOR_ATTR_TEMP(4, 3),
2732 THERMAL_SENSOR_ATTR_TEMP(5, 4),
2733 THERMAL_SENSOR_ATTR_TEMP(6, 5),
2734 THERMAL_SENSOR_ATTR_TEMP(7, 6),
2735 THERMAL_SENSOR_ATTR_TEMP(8, 7),
2736 THERMAL_SENSOR_ATTR_TEMP(9, 8),
2737 THERMAL_SENSOR_ATTR_TEMP(10, 9),
2738 THERMAL_SENSOR_ATTR_TEMP(11, 10),
2739 THERMAL_SENSOR_ATTR_TEMP(12, 11),
2740 THERMAL_SENSOR_ATTR_TEMP(13, 12),
2741 THERMAL_SENSOR_ATTR_TEMP(14, 13),
2742 THERMAL_SENSOR_ATTR_TEMP(15, 14),
2743 THERMAL_SENSOR_ATTR_TEMP(16, 15),
2746 #define THERMAL_ATTRS(X) \
2747 &sensor_dev_attr_thermal_temp_input[X].dev_attr.attr
2749 static struct attribute
*thermal_temp_input_attr
[] = {
2769 static const struct attribute_group thermal_temp_input16_group
= {
2770 .attrs
= thermal_temp_input_attr
2773 static const struct attribute_group thermal_temp_input8_group
= {
2774 .attrs
= &thermal_temp_input_attr
[8]
2777 #undef THERMAL_SENSOR_ATTR_TEMP
2778 #undef THERMAL_ATTRS
2780 /* --------------------------------------------------------------------- */
2782 static int __init
thermal_init(struct ibm_init_struct
*iibm
)
2789 vdbg_printk(TPACPI_DBG_INIT
, "initializing thermal subdriver\n");
2791 acpi_tmp7
= acpi_evalf(ec_handle
, NULL
, "TMP7", "qv");
2793 if (thinkpad_id
.ec_model
) {
2795 * Direct EC access mode: sensors at registers
2796 * 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for
2797 * non-implemented, thermal sensors return 0x80 when
2802 for (i
= 0; i
< 8; i
++) {
2803 if (acpi_ec_read(TP_EC_THERMAL_TMP0
+ i
, &t
)) {
2809 if (acpi_ec_read(TP_EC_THERMAL_TMP8
+ i
, &t
)) {
2817 /* This is sheer paranoia, but we handle it anyway */
2820 "ThinkPad ACPI EC access misbehaving, "
2821 "falling back to ACPI TMPx access mode\n");
2822 thermal_read_mode
= TPACPI_THERMAL_ACPI_TMP07
;
2825 "ThinkPad ACPI EC access misbehaving, "
2826 "disabling thermal sensors access\n");
2827 thermal_read_mode
= TPACPI_THERMAL_NONE
;
2832 TPACPI_THERMAL_TPEC_16
: TPACPI_THERMAL_TPEC_8
;
2834 } else if (acpi_tmp7
) {
2835 if (acpi_evalf(ec_handle
, NULL
, "UPDT", "qv")) {
2836 /* 600e/x, 770e, 770x */
2837 thermal_read_mode
= TPACPI_THERMAL_ACPI_UPDT
;
2839 /* Standard ACPI TMPx access, max 8 sensors */
2840 thermal_read_mode
= TPACPI_THERMAL_ACPI_TMP07
;
2843 /* temperatures not supported on 570, G4x, R30, R31, R32 */
2844 thermal_read_mode
= TPACPI_THERMAL_NONE
;
2847 vdbg_printk(TPACPI_DBG_INIT
, "thermal is %s, mode %d\n",
2848 str_supported(thermal_read_mode
!= TPACPI_THERMAL_NONE
),
2851 switch(thermal_read_mode
) {
2852 case TPACPI_THERMAL_TPEC_16
:
2853 res
= sysfs_create_group(&tpacpi_pdev
->dev
.kobj
,
2854 &thermal_temp_input16_group
);
2858 case TPACPI_THERMAL_TPEC_8
:
2859 case TPACPI_THERMAL_ACPI_TMP07
:
2860 case TPACPI_THERMAL_ACPI_UPDT
:
2861 res
= sysfs_create_group(&tpacpi_pdev
->dev
.kobj
,
2862 &thermal_temp_input8_group
);
2866 case TPACPI_THERMAL_NONE
:
2874 static void thermal_exit(void)
2876 switch(thermal_read_mode
) {
2877 case TPACPI_THERMAL_TPEC_16
:
2878 sysfs_remove_group(&tpacpi_pdev
->dev
.kobj
,
2879 &thermal_temp_input16_group
);
2881 case TPACPI_THERMAL_TPEC_8
:
2882 case TPACPI_THERMAL_ACPI_TMP07
:
2883 case TPACPI_THERMAL_ACPI_UPDT
:
2884 sysfs_remove_group(&tpacpi_pdev
->dev
.kobj
,
2885 &thermal_temp_input16_group
);
2887 case TPACPI_THERMAL_NONE
:
2893 /* idx is zero-based */
2894 static int thermal_get_sensor(int idx
, s32
*value
)
2900 t
= TP_EC_THERMAL_TMP0
;
2902 switch (thermal_read_mode
) {
2903 #if TPACPI_MAX_THERMAL_SENSORS >= 16
2904 case TPACPI_THERMAL_TPEC_16
:
2905 if (idx
>= 8 && idx
<= 15) {
2906 t
= TP_EC_THERMAL_TMP8
;
2911 case TPACPI_THERMAL_TPEC_8
:
2913 if (!acpi_ec_read(t
+ idx
, &tmp
))
2915 *value
= tmp
* 1000;
2920 case TPACPI_THERMAL_ACPI_UPDT
:
2922 snprintf(tmpi
, sizeof(tmpi
), "TMP%c", '0' + idx
);
2923 if (!acpi_evalf(ec_handle
, NULL
, "UPDT", "v"))
2925 if (!acpi_evalf(ec_handle
, &t
, tmpi
, "d"))
2927 *value
= (t
- 2732) * 100;
2932 case TPACPI_THERMAL_ACPI_TMP07
:
2934 snprintf(tmpi
, sizeof(tmpi
), "TMP%c", '0' + idx
);
2935 if (!acpi_evalf(ec_handle
, &t
, tmpi
, "d"))
2937 if (t
> 127 || t
< -127)
2938 t
= TP_EC_THERMAL_TMP_NA
;
2944 case TPACPI_THERMAL_NONE
:
2952 static int thermal_get_sensors(struct ibm_thermal_sensors_struct
*s
)
2963 if (thermal_read_mode
== TPACPI_THERMAL_TPEC_16
)
2966 for(i
= 0 ; i
< n
; i
++) {
2967 res
= thermal_get_sensor(i
, &s
->temp
[i
]);
2975 static int thermal_read(char *p
)
2979 struct ibm_thermal_sensors_struct t
;
2981 n
= thermal_get_sensors(&t
);
2982 if (unlikely(n
< 0))
2985 len
+= sprintf(p
+ len
, "temperatures:\t");
2988 for (i
= 0; i
< (n
- 1); i
++)
2989 len
+= sprintf(p
+ len
, "%d ", t
.temp
[i
] / 1000);
2990 len
+= sprintf(p
+ len
, "%d\n", t
.temp
[i
] / 1000);
2992 len
+= sprintf(p
+ len
, "not supported\n");
2997 static struct ibm_struct thermal_driver_data
= {
2999 .read
= thermal_read
,
3000 .exit
= thermal_exit
,
3003 /*************************************************************************
3007 static u8 ecdump_regs
[256];
3009 static int ecdump_read(char *p
)
3015 len
+= sprintf(p
+ len
, "EC "
3016 " +00 +01 +02 +03 +04 +05 +06 +07"
3017 " +08 +09 +0a +0b +0c +0d +0e +0f\n");
3018 for (i
= 0; i
< 256; i
+= 16) {
3019 len
+= sprintf(p
+ len
, "EC 0x%02x:", i
);
3020 for (j
= 0; j
< 16; j
++) {
3021 if (!acpi_ec_read(i
+ j
, &v
))
3023 if (v
!= ecdump_regs
[i
+ j
])
3024 len
+= sprintf(p
+ len
, " *%02x", v
);
3026 len
+= sprintf(p
+ len
, " %02x", v
);
3027 ecdump_regs
[i
+ j
] = v
;
3029 len
+= sprintf(p
+ len
, "\n");
3034 /* These are way too dangerous to advertise openly... */
3036 len
+= sprintf(p
+ len
, "commands:\t0x<offset> 0x<value>"
3037 " (<offset> is 00-ff, <value> is 00-ff)\n");
3038 len
+= sprintf(p
+ len
, "commands:\t0x<offset> <value> "
3039 " (<offset> is 00-ff, <value> is 0-255)\n");
3044 static int ecdump_write(char *buf
)
3049 while ((cmd
= next_cmd(&buf
))) {
3050 if (sscanf(cmd
, "0x%x 0x%x", &i
, &v
) == 2) {
3052 } else if (sscanf(cmd
, "0x%x %u", &i
, &v
) == 2) {
3056 if (i
>= 0 && i
< 256 && v
>= 0 && v
< 256) {
3057 if (!acpi_ec_write(i
, v
))
3066 static struct ibm_struct ecdump_driver_data
= {
3068 .read
= ecdump_read
,
3069 .write
= ecdump_write
,
3070 .flags
.experimental
= 1,
3073 /*************************************************************************
3074 * Backlight/brightness subdriver
3077 static struct backlight_device
*ibm_backlight_device
;
3079 static struct backlight_ops ibm_backlight_data
= {
3080 .get_brightness
= brightness_get
,
3081 .update_status
= brightness_update_status
,
3084 static struct mutex brightness_mutex
;
3086 static int __init
brightness_init(struct ibm_init_struct
*iibm
)
3090 vdbg_printk(TPACPI_DBG_INIT
, "initializing brightness subdriver\n");
3092 mutex_init(&brightness_mutex
);
3094 if (!brightness_mode
) {
3095 if (thinkpad_id
.vendor
== PCI_VENDOR_ID_LENOVO
)
3096 brightness_mode
= 2;
3098 brightness_mode
= 3;
3100 dbg_printk(TPACPI_DBG_INIT
, "selected brightness_mode=%d\n",
3104 if (brightness_mode
> 3)
3107 b
= brightness_get(NULL
);
3111 ibm_backlight_device
= backlight_device_register(
3112 TPACPI_BACKLIGHT_DEV_NAME
, NULL
, NULL
,
3113 &ibm_backlight_data
);
3114 if (IS_ERR(ibm_backlight_device
)) {
3115 printk(IBM_ERR
"Could not register backlight device\n");
3116 return PTR_ERR(ibm_backlight_device
);
3118 vdbg_printk(TPACPI_DBG_INIT
, "brightness is supported\n");
3120 ibm_backlight_device
->props
.max_brightness
= 7;
3121 ibm_backlight_device
->props
.brightness
= b
;
3122 backlight_update_status(ibm_backlight_device
);
3127 static void brightness_exit(void)
3129 if (ibm_backlight_device
) {
3130 vdbg_printk(TPACPI_DBG_EXIT
,
3131 "calling backlight_device_unregister()\n");
3132 backlight_device_unregister(ibm_backlight_device
);
3133 ibm_backlight_device
= NULL
;
3137 static int brightness_update_status(struct backlight_device
*bd
)
3139 return brightness_set(
3140 (bd
->props
.fb_blank
== FB_BLANK_UNBLANK
&&
3141 bd
->props
.power
== FB_BLANK_UNBLANK
) ?
3142 bd
->props
.brightness
: 0);
3146 * ThinkPads can read brightness from two places: EC 0x31, or
3147 * CMOS NVRAM byte 0x5E, bits 0-3.
3149 static int brightness_get(struct backlight_device
*bd
)
3151 u8 lec
= 0, lcmos
= 0, level
= 0;
3153 if (brightness_mode
& 1) {
3154 if (!acpi_ec_read(brightness_offset
, &lec
))
3159 if (brightness_mode
& 2) {
3160 lcmos
= (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS
)
3161 & TP_NVRAM_MASK_LEVEL_BRIGHTNESS
)
3162 >> TP_NVRAM_POS_LEVEL_BRIGHTNESS
;
3166 if (brightness_mode
== 3 && lec
!= lcmos
) {
3168 "CMOS NVRAM (%u) and EC (%u) do not agree "
3169 "on display brightness level\n",
3170 (unsigned int) lcmos
,
3171 (unsigned int) lec
);
3178 static int brightness_set(int value
)
3180 int cmos_cmd
, inc
, i
, res
;
3186 res
= mutex_lock_interruptible(&brightness_mutex
);
3190 current_value
= brightness_get(NULL
);
3191 if (current_value
< 0) {
3192 res
= current_value
;
3196 cmos_cmd
= value
> current_value
?
3197 TP_CMOS_BRIGHTNESS_UP
:
3198 TP_CMOS_BRIGHTNESS_DOWN
;
3199 inc
= value
> current_value
? 1 : -1;
3202 for (i
= current_value
; i
!= value
; i
+= inc
) {
3203 if ((brightness_mode
& 2) &&
3204 issue_thinkpad_cmos_command(cmos_cmd
)) {
3208 if ((brightness_mode
& 1) &&
3209 !acpi_ec_write(brightness_offset
, i
+ inc
)) {
3216 mutex_unlock(&brightness_mutex
);
3220 static int brightness_read(char *p
)
3225 if ((level
= brightness_get(NULL
)) < 0) {
3226 len
+= sprintf(p
+ len
, "level:\t\tunreadable\n");
3228 len
+= sprintf(p
+ len
, "level:\t\t%d\n", level
& 0x7);
3229 len
+= sprintf(p
+ len
, "commands:\tup, down\n");
3230 len
+= sprintf(p
+ len
, "commands:\tlevel <level>"
3231 " (<level> is 0-7)\n");
3237 static int brightness_write(char *buf
)
3243 while ((cmd
= next_cmd(&buf
))) {
3244 if ((level
= brightness_get(NULL
)) < 0)
3248 if (strlencmp(cmd
, "up") == 0) {
3249 new_level
= level
== 7 ? 7 : level
+ 1;
3250 } else if (strlencmp(cmd
, "down") == 0) {
3251 new_level
= level
== 0 ? 0 : level
- 1;
3252 } else if (sscanf(cmd
, "level %d", &new_level
) == 1 &&
3253 new_level
>= 0 && new_level
<= 7) {
3258 brightness_set(new_level
);
3264 static struct ibm_struct brightness_driver_data
= {
3265 .name
= "brightness",
3266 .read
= brightness_read
,
3267 .write
= brightness_write
,
3268 .exit
= brightness_exit
,
3271 /*************************************************************************
3275 static int volume_read(char *p
)
3280 if (!acpi_ec_read(volume_offset
, &level
)) {
3281 len
+= sprintf(p
+ len
, "level:\t\tunreadable\n");
3283 len
+= sprintf(p
+ len
, "level:\t\t%d\n", level
& 0xf);
3284 len
+= sprintf(p
+ len
, "mute:\t\t%s\n", onoff(level
, 6));
3285 len
+= sprintf(p
+ len
, "commands:\tup, down, mute\n");
3286 len
+= sprintf(p
+ len
, "commands:\tlevel <level>"
3287 " (<level> is 0-15)\n");
3293 static int volume_write(char *buf
)
3295 int cmos_cmd
, inc
, i
;
3297 int new_level
, new_mute
;
3300 while ((cmd
= next_cmd(&buf
))) {
3301 if (!acpi_ec_read(volume_offset
, &level
))
3303 new_mute
= mute
= level
& 0x40;
3304 new_level
= level
= level
& 0xf;
3306 if (strlencmp(cmd
, "up") == 0) {
3310 new_level
= level
== 15 ? 15 : level
+ 1;
3311 } else if (strlencmp(cmd
, "down") == 0) {
3315 new_level
= level
== 0 ? 0 : level
- 1;
3316 } else if (sscanf(cmd
, "level %d", &new_level
) == 1 &&
3317 new_level
>= 0 && new_level
<= 15) {
3319 } else if (strlencmp(cmd
, "mute") == 0) {
3324 if (new_level
!= level
) { /* mute doesn't change */
3325 cmos_cmd
= new_level
> level
? TP_CMOS_VOLUME_UP
: TP_CMOS_VOLUME_DOWN
;
3326 inc
= new_level
> level
? 1 : -1;
3328 if (mute
&& (issue_thinkpad_cmos_command(cmos_cmd
) ||
3329 !acpi_ec_write(volume_offset
, level
)))
3332 for (i
= level
; i
!= new_level
; i
+= inc
)
3333 if (issue_thinkpad_cmos_command(cmos_cmd
) ||
3334 !acpi_ec_write(volume_offset
, i
+ inc
))
3337 if (mute
&& (issue_thinkpad_cmos_command(TP_CMOS_VOLUME_MUTE
) ||
3338 !acpi_ec_write(volume_offset
,
3343 if (new_mute
!= mute
) { /* level doesn't change */
3344 cmos_cmd
= new_mute
? TP_CMOS_VOLUME_MUTE
: TP_CMOS_VOLUME_UP
;
3346 if (issue_thinkpad_cmos_command(cmos_cmd
) ||
3347 !acpi_ec_write(volume_offset
, level
+ new_mute
))
3355 static struct ibm_struct volume_driver_data
= {
3357 .read
= volume_read
,
3358 .write
= volume_write
,
3361 /*************************************************************************
3368 * TPACPI_FAN_RD_ACPI_GFAN:
3369 * ACPI GFAN method: returns fan level
3371 * see TPACPI_FAN_WR_ACPI_SFAN
3372 * EC 0x2f (HFSP) not available if GFAN exists
3374 * TPACPI_FAN_WR_ACPI_SFAN:
3375 * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max)
3377 * EC 0x2f (HFSP) might be available *for reading*, but do not use
3380 * TPACPI_FAN_WR_TPEC:
3381 * ThinkPad EC register 0x2f (HFSP): fan control loop mode
3382 * Supported on almost all ThinkPads
3384 * Fan speed changes of any sort (including those caused by the
3385 * disengaged mode) are usually done slowly by the firmware as the
3386 * maximum ammount of fan duty cycle change per second seems to be
3389 * Reading is not available if GFAN exists.
3390 * Writing is not available if SFAN exists.
3393 * 7 automatic mode engaged;
3394 * (default operation mode of the ThinkPad)
3395 * fan level is ignored in this mode.
3396 * 6 full speed mode (takes precedence over bit 7);
3397 * not available on all thinkpads. May disable
3398 * the tachometer while the fan controller ramps up
3399 * the speed (which can take up to a few *minutes*).
3400 * Speeds up fan to 100% duty-cycle, which is far above
3401 * the standard RPM levels. It is not impossible that
3402 * it could cause hardware damage.
3403 * 5-3 unused in some models. Extra bits for fan level
3404 * in others, but still useless as all values above
3405 * 7 map to the same speed as level 7 in these models.
3406 * 2-0 fan level (0..7 usually)
3408 * 0x07 = max (set when temperatures critical)
3409 * Some ThinkPads may have other levels, see
3410 * TPACPI_FAN_WR_ACPI_FANS (X31/X40/X41)
3412 * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at
3413 * boot. Apparently the EC does not intialize it, so unless ACPI DSDT
3414 * does so, its initial value is meaningless (0x07).
3416 * For firmware bugs, refer to:
3417 * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues
3421 * ThinkPad EC register 0x84 (LSB), 0x85 (MSB):
3422 * Main fan tachometer reading (in RPM)
3424 * This register is present on all ThinkPads with a new-style EC, and
3425 * it is known not to be present on the A21m/e, and T22, as there is
3426 * something else in offset 0x84 according to the ACPI DSDT. Other
3427 * ThinkPads from this same time period (and earlier) probably lack the
3428 * tachometer as well.
3430 * Unfortunately a lot of ThinkPads with new-style ECs but whose firwmare
3431 * was never fixed by IBM to report the EC firmware version string
3432 * probably support the tachometer (like the early X models), so
3433 * detecting it is quite hard. We need more data to know for sure.
3435 * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings
3438 * FIRMWARE BUG: may go stale while the EC is switching to full speed
3441 * For firmware bugs, refer to:
3442 * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues
3444 * TPACPI_FAN_WR_ACPI_FANS:
3445 * ThinkPad X31, X40, X41. Not available in the X60.
3447 * FANS ACPI handle: takes three arguments: low speed, medium speed,
3448 * high speed. ACPI DSDT seems to map these three speeds to levels
3449 * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH
3450 * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3")
3452 * The speeds are stored on handles
3453 * (FANA:FAN9), (FANC:FANB), (FANE:FAND).
3455 * There are three default speed sets, acessible as handles:
3456 * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H
3458 * ACPI DSDT switches which set is in use depending on various
3461 * TPACPI_FAN_WR_TPEC is also available and should be used to
3462 * command the fan. The X31/X40/X41 seems to have 8 fan levels,
3463 * but the ACPI tables just mention level 7.
3466 static enum fan_status_access_mode fan_status_access_mode
;
3467 static enum fan_control_access_mode fan_control_access_mode
;
3468 static enum fan_control_commands fan_control_commands
;
3470 static u8 fan_control_initial_status
;
3471 static u8 fan_control_desired_level
;
3473 static void fan_watchdog_fire(struct work_struct
*ignored
);
3474 static int fan_watchdog_maxinterval
;
3475 static DECLARE_DELAYED_WORK(fan_watchdog_task
, fan_watchdog_fire
);
3477 IBM_HANDLE(fans
, ec
, "FANS"); /* X31, X40, X41 */
3478 IBM_HANDLE(gfan
, ec
, "GFAN", /* 570 */
3479 "\\FSPD", /* 600e/x, 770e, 770x */
3481 IBM_HANDLE(sfan
, ec
, "SFAN", /* 570 */
3482 "JFNS", /* 770x-JL */
3486 * SYSFS fan layout: hwmon compatible (device)
3489 * 0: "disengaged" mode
3491 * 2: native EC "auto" mode (recommended, hardware default)
3493 * pwm*: set speed in manual mode, ignored otherwise.
3494 * 0 is level 0; 255 is level 7. Intermediate points done with linear
3497 * fan*_input: tachometer reading, RPM
3500 * SYSFS fan layout: extensions
3502 * fan_watchdog (driver):
3503 * fan watchdog interval in seconds, 0 disables (default), max 120
3506 /* sysfs fan pwm1_enable ----------------------------------------------- */
3507 static ssize_t
fan_pwm1_enable_show(struct device
*dev
,
3508 struct device_attribute
*attr
,
3514 res
= fan_get_status_safe(&status
);
3518 if (unlikely(tp_features
.fan_ctrl_status_undef
)) {
3519 if (status
!= fan_control_initial_status
) {
3520 tp_features
.fan_ctrl_status_undef
= 0;
3522 /* Return most likely status. In fact, it
3523 * might be the only possible status */
3524 status
= TP_EC_FAN_AUTO
;
3528 if (status
& TP_EC_FAN_FULLSPEED
) {
3530 } else if (status
& TP_EC_FAN_AUTO
) {
3535 return snprintf(buf
, PAGE_SIZE
, "%d\n", mode
);
3538 static ssize_t
fan_pwm1_enable_store(struct device
*dev
,
3539 struct device_attribute
*attr
,
3540 const char *buf
, size_t count
)
3545 if (parse_strtoul(buf
, 2, &t
))
3550 level
= TP_EC_FAN_FULLSPEED
;
3553 level
= TPACPI_FAN_LAST_LEVEL
;
3556 level
= TP_EC_FAN_AUTO
;
3559 /* reserved for software-controlled auto mode */
3565 res
= fan_set_level_safe(level
);
3571 fan_watchdog_reset();
3576 static struct device_attribute dev_attr_fan_pwm1_enable
=
3577 __ATTR(pwm1_enable
, S_IWUSR
| S_IRUGO
,
3578 fan_pwm1_enable_show
, fan_pwm1_enable_store
);
3580 /* sysfs fan pwm1 ------------------------------------------------------ */
3581 static ssize_t
fan_pwm1_show(struct device
*dev
,
3582 struct device_attribute
*attr
,
3588 res
= fan_get_status_safe(&status
);
3592 if (unlikely(tp_features
.fan_ctrl_status_undef
)) {
3593 if (status
!= fan_control_initial_status
) {
3594 tp_features
.fan_ctrl_status_undef
= 0;
3596 status
= TP_EC_FAN_AUTO
;
3601 (TP_EC_FAN_AUTO
| TP_EC_FAN_FULLSPEED
)) != 0)
3602 status
= fan_control_desired_level
;
3607 return snprintf(buf
, PAGE_SIZE
, "%u\n", (status
* 255) / 7);
3610 static ssize_t
fan_pwm1_store(struct device
*dev
,
3611 struct device_attribute
*attr
,
3612 const char *buf
, size_t count
)
3616 u8 status
, newlevel
;
3618 if (parse_strtoul(buf
, 255, &s
))
3621 /* scale down from 0-255 to 0-7 */
3622 newlevel
= (s
>> 5) & 0x07;
3624 rc
= mutex_lock_interruptible(&fan_mutex
);
3628 rc
= fan_get_status(&status
);
3629 if (!rc
&& (status
&
3630 (TP_EC_FAN_AUTO
| TP_EC_FAN_FULLSPEED
)) == 0) {
3631 rc
= fan_set_level(newlevel
);
3635 fan_update_desired_level(newlevel
);
3636 fan_watchdog_reset();
3640 mutex_unlock(&fan_mutex
);
3641 return (rc
)? rc
: count
;
3644 static struct device_attribute dev_attr_fan_pwm1
=
3645 __ATTR(pwm1
, S_IWUSR
| S_IRUGO
,
3646 fan_pwm1_show
, fan_pwm1_store
);
3648 /* sysfs fan fan1_input ------------------------------------------------ */
3649 static ssize_t
fan_fan1_input_show(struct device
*dev
,
3650 struct device_attribute
*attr
,
3656 res
= fan_get_speed(&speed
);
3660 return snprintf(buf
, PAGE_SIZE
, "%u\n", speed
);
3663 static struct device_attribute dev_attr_fan_fan1_input
=
3664 __ATTR(fan1_input
, S_IRUGO
,
3665 fan_fan1_input_show
, NULL
);
3667 /* sysfs fan fan_watchdog (driver) ------------------------------------- */
3668 static ssize_t
fan_fan_watchdog_show(struct device_driver
*drv
,
3671 return snprintf(buf
, PAGE_SIZE
, "%u\n", fan_watchdog_maxinterval
);
3674 static ssize_t
fan_fan_watchdog_store(struct device_driver
*drv
,
3675 const char *buf
, size_t count
)
3679 if (parse_strtoul(buf
, 120, &t
))
3682 if (!fan_control_allowed
)
3685 fan_watchdog_maxinterval
= t
;
3686 fan_watchdog_reset();
3691 static DRIVER_ATTR(fan_watchdog
, S_IWUSR
| S_IRUGO
,
3692 fan_fan_watchdog_show
, fan_fan_watchdog_store
);
3694 /* --------------------------------------------------------------------- */
3695 static struct attribute
*fan_attributes
[] = {
3696 &dev_attr_fan_pwm1_enable
.attr
, &dev_attr_fan_pwm1
.attr
,
3697 &dev_attr_fan_fan1_input
.attr
,
3701 static const struct attribute_group fan_attr_group
= {
3702 .attrs
= fan_attributes
,
3705 static int __init
fan_init(struct ibm_init_struct
*iibm
)
3709 vdbg_printk(TPACPI_DBG_INIT
, "initializing fan subdriver\n");
3711 mutex_init(&fan_mutex
);
3712 fan_status_access_mode
= TPACPI_FAN_NONE
;
3713 fan_control_access_mode
= TPACPI_FAN_WR_NONE
;
3714 fan_control_commands
= 0;
3715 fan_watchdog_maxinterval
= 0;
3716 tp_features
.fan_ctrl_status_undef
= 0;
3717 fan_control_desired_level
= 7;
3719 IBM_ACPIHANDLE_INIT(fans
);
3720 IBM_ACPIHANDLE_INIT(gfan
);
3721 IBM_ACPIHANDLE_INIT(sfan
);
3724 /* 570, 600e/x, 770e, 770x */
3725 fan_status_access_mode
= TPACPI_FAN_RD_ACPI_GFAN
;
3727 /* all other ThinkPads: note that even old-style
3728 * ThinkPad ECs supports the fan control register */
3729 if (likely(acpi_ec_read(fan_status_offset
,
3730 &fan_control_initial_status
))) {
3731 fan_status_access_mode
= TPACPI_FAN_RD_TPEC
;
3733 /* In some ThinkPads, neither the EC nor the ACPI
3734 * DSDT initialize the fan status, and it ends up
3735 * being set to 0x07 when it *could* be either
3738 * Enable for TP-1Y (T43), TP-78 (R51e),
3739 * TP-76 (R52), TP-70 (T43, R52), which are known
3741 if (fan_control_initial_status
== 0x07) {
3742 switch (thinkpad_id
.ec_model
) {
3743 case 0x5931: /* TP-1Y */
3744 case 0x3837: /* TP-78 */
3745 case 0x3637: /* TP-76 */
3746 case 0x3037: /* TP-70 */
3748 "fan_init: initial fan status is "
3749 "unknown, assuming it is in auto "
3751 tp_features
.fan_ctrl_status_undef
= 1;
3757 "ThinkPad ACPI EC access misbehaving, "
3758 "fan status and control unavailable\n");
3765 fan_control_access_mode
= TPACPI_FAN_WR_ACPI_SFAN
;
3766 fan_control_commands
|=
3767 TPACPI_FAN_CMD_LEVEL
| TPACPI_FAN_CMD_ENABLE
;
3770 /* gfan without sfan means no fan control */
3771 /* all other models implement TP EC 0x2f control */
3775 fan_control_access_mode
=
3776 TPACPI_FAN_WR_ACPI_FANS
;
3777 fan_control_commands
|=
3778 TPACPI_FAN_CMD_SPEED
|
3779 TPACPI_FAN_CMD_LEVEL
|
3780 TPACPI_FAN_CMD_ENABLE
;
3782 fan_control_access_mode
= TPACPI_FAN_WR_TPEC
;
3783 fan_control_commands
|=
3784 TPACPI_FAN_CMD_LEVEL
|
3785 TPACPI_FAN_CMD_ENABLE
;
3790 vdbg_printk(TPACPI_DBG_INIT
, "fan is %s, modes %d, %d\n",
3791 str_supported(fan_status_access_mode
!= TPACPI_FAN_NONE
||
3792 fan_control_access_mode
!= TPACPI_FAN_WR_NONE
),
3793 fan_status_access_mode
, fan_control_access_mode
);
3795 /* fan control master switch */
3796 if (!fan_control_allowed
) {
3797 fan_control_access_mode
= TPACPI_FAN_WR_NONE
;
3798 fan_control_commands
= 0;
3799 dbg_printk(TPACPI_DBG_INIT
,
3800 "fan control features disabled by parameter\n");
3803 /* update fan_control_desired_level */
3804 if (fan_status_access_mode
!= TPACPI_FAN_NONE
)
3805 fan_get_status_safe(NULL
);
3807 if (fan_status_access_mode
!= TPACPI_FAN_NONE
||
3808 fan_control_access_mode
!= TPACPI_FAN_WR_NONE
) {
3809 rc
= sysfs_create_group(&tpacpi_pdev
->dev
.kobj
,
3812 rc
= driver_create_file(&tpacpi_pdriver
.driver
,
3813 &driver_attr_fan_watchdog
);
3822 * Call with fan_mutex held
3824 static void fan_update_desired_level(u8 status
)
3827 (TP_EC_FAN_AUTO
| TP_EC_FAN_FULLSPEED
)) == 0) {
3829 fan_control_desired_level
= 7;
3831 fan_control_desired_level
= status
;
3835 static int fan_get_status(u8
*status
)
3840 * Add TPACPI_FAN_RD_ACPI_FANS ? */
3842 switch (fan_status_access_mode
) {
3843 case TPACPI_FAN_RD_ACPI_GFAN
:
3844 /* 570, 600e/x, 770e, 770x */
3846 if (unlikely(!acpi_evalf(gfan_handle
, &s
, NULL
, "d")))
3854 case TPACPI_FAN_RD_TPEC
:
3855 /* all except 570, 600e/x, 770e, 770x */
3856 if (unlikely(!acpi_ec_read(fan_status_offset
, &s
)))
3871 static int fan_get_status_safe(u8
*status
)
3876 rc
= mutex_lock_interruptible(&fan_mutex
);
3879 rc
= fan_get_status(&s
);
3881 fan_update_desired_level(s
);
3882 mutex_unlock(&fan_mutex
);
3890 static void fan_exit(void)
3892 vdbg_printk(TPACPI_DBG_EXIT
, "cancelling any pending fan watchdog tasks\n");
3894 /* FIXME: can we really do this unconditionally? */
3895 sysfs_remove_group(&tpacpi_pdev
->dev
.kobj
, &fan_attr_group
);
3896 driver_remove_file(&tpacpi_pdriver
.driver
, &driver_attr_fan_watchdog
);
3898 cancel_delayed_work(&fan_watchdog_task
);
3899 flush_scheduled_work();
3902 static int fan_get_speed(unsigned int *speed
)
3906 switch (fan_status_access_mode
) {
3907 case TPACPI_FAN_RD_TPEC
:
3908 /* all except 570, 600e/x, 770e, 770x */
3909 if (unlikely(!acpi_ec_read(fan_rpm_offset
, &lo
) ||
3910 !acpi_ec_read(fan_rpm_offset
+ 1, &hi
)))
3914 *speed
= (hi
<< 8) | lo
;
3925 static void fan_watchdog_fire(struct work_struct
*ignored
)
3929 if (tpacpi_lifecycle
!= TPACPI_LIFE_RUNNING
)
3932 printk(IBM_NOTICE
"fan watchdog: enabling fan\n");
3933 rc
= fan_set_enable();
3935 printk(IBM_ERR
"fan watchdog: error %d while enabling fan, "
3936 "will try again later...\n", -rc
);
3937 /* reschedule for later */
3938 fan_watchdog_reset();
3942 static void fan_watchdog_reset(void)
3944 static int fan_watchdog_active
;
3946 if (fan_control_access_mode
== TPACPI_FAN_WR_NONE
)
3949 if (fan_watchdog_active
)
3950 cancel_delayed_work(&fan_watchdog_task
);
3952 if (fan_watchdog_maxinterval
> 0 &&
3953 tpacpi_lifecycle
!= TPACPI_LIFE_EXITING
) {
3954 fan_watchdog_active
= 1;
3955 if (!schedule_delayed_work(&fan_watchdog_task
,
3956 msecs_to_jiffies(fan_watchdog_maxinterval
3958 printk(IBM_ERR
"failed to schedule the fan watchdog, "
3959 "watchdog will not trigger\n");
3962 fan_watchdog_active
= 0;
3965 static int fan_set_level(int level
)
3967 if (!fan_control_allowed
)
3970 switch (fan_control_access_mode
) {
3971 case TPACPI_FAN_WR_ACPI_SFAN
:
3972 if (level
>= 0 && level
<= 7) {
3973 if (!acpi_evalf(sfan_handle
, NULL
, NULL
, "vd", level
))
3979 case TPACPI_FAN_WR_ACPI_FANS
:
3980 case TPACPI_FAN_WR_TPEC
:
3981 if ((level
!= TP_EC_FAN_AUTO
) &&
3982 (level
!= TP_EC_FAN_FULLSPEED
) &&
3983 ((level
< 0) || (level
> 7)))
3986 /* safety net should the EC not support AUTO
3987 * or FULLSPEED mode bits and just ignore them */
3988 if (level
& TP_EC_FAN_FULLSPEED
)
3989 level
|= 7; /* safety min speed 7 */
3990 else if (level
& TP_EC_FAN_FULLSPEED
)
3991 level
|= 4; /* safety min speed 4 */
3993 if (!acpi_ec_write(fan_status_offset
, level
))
3996 tp_features
.fan_ctrl_status_undef
= 0;
4005 static int fan_set_level_safe(int level
)
4009 if (!fan_control_allowed
)
4012 rc
= mutex_lock_interruptible(&fan_mutex
);
4016 if (level
== TPACPI_FAN_LAST_LEVEL
)
4017 level
= fan_control_desired_level
;
4019 rc
= fan_set_level(level
);
4021 fan_update_desired_level(level
);
4023 mutex_unlock(&fan_mutex
);
4027 static int fan_set_enable(void)
4032 if (!fan_control_allowed
)
4035 rc
= mutex_lock_interruptible(&fan_mutex
);
4039 switch (fan_control_access_mode
) {
4040 case TPACPI_FAN_WR_ACPI_FANS
:
4041 case TPACPI_FAN_WR_TPEC
:
4042 rc
= fan_get_status(&s
);
4046 /* Don't go out of emergency fan mode */
4049 s
|= TP_EC_FAN_AUTO
| 4; /* min fan speed 4 */
4052 if (!acpi_ec_write(fan_status_offset
, s
))
4055 tp_features
.fan_ctrl_status_undef
= 0;
4060 case TPACPI_FAN_WR_ACPI_SFAN
:
4061 rc
= fan_get_status(&s
);
4067 /* Set fan to at least level 4 */
4070 if (!acpi_evalf(sfan_handle
, NULL
, NULL
, "vd", s
))
4080 mutex_unlock(&fan_mutex
);
4084 static int fan_set_disable(void)
4088 if (!fan_control_allowed
)
4091 rc
= mutex_lock_interruptible(&fan_mutex
);
4096 switch (fan_control_access_mode
) {
4097 case TPACPI_FAN_WR_ACPI_FANS
:
4098 case TPACPI_FAN_WR_TPEC
:
4099 if (!acpi_ec_write(fan_status_offset
, 0x00))
4102 fan_control_desired_level
= 0;
4103 tp_features
.fan_ctrl_status_undef
= 0;
4107 case TPACPI_FAN_WR_ACPI_SFAN
:
4108 if (!acpi_evalf(sfan_handle
, NULL
, NULL
, "vd", 0x00))
4111 fan_control_desired_level
= 0;
4119 mutex_unlock(&fan_mutex
);
4123 static int fan_set_speed(int speed
)
4127 if (!fan_control_allowed
)
4130 rc
= mutex_lock_interruptible(&fan_mutex
);
4135 switch (fan_control_access_mode
) {
4136 case TPACPI_FAN_WR_ACPI_FANS
:
4137 if (speed
>= 0 && speed
<= 65535) {
4138 if (!acpi_evalf(fans_handle
, NULL
, NULL
, "vddd",
4139 speed
, speed
, speed
))
4149 mutex_unlock(&fan_mutex
);
4153 static int fan_read(char *p
)
4158 unsigned int speed
= 0;
4160 switch (fan_status_access_mode
) {
4161 case TPACPI_FAN_RD_ACPI_GFAN
:
4162 /* 570, 600e/x, 770e, 770x */
4163 if ((rc
= fan_get_status_safe(&status
)) < 0)
4166 len
+= sprintf(p
+ len
, "status:\t\t%s\n"
4168 (status
!= 0) ? "enabled" : "disabled", status
);
4171 case TPACPI_FAN_RD_TPEC
:
4172 /* all except 570, 600e/x, 770e, 770x */
4173 if ((rc
= fan_get_status_safe(&status
)) < 0)
4176 if (unlikely(tp_features
.fan_ctrl_status_undef
)) {
4177 if (status
!= fan_control_initial_status
)
4178 tp_features
.fan_ctrl_status_undef
= 0;
4180 /* Return most likely status. In fact, it
4181 * might be the only possible status */
4182 status
= TP_EC_FAN_AUTO
;
4185 len
+= sprintf(p
+ len
, "status:\t\t%s\n",
4186 (status
!= 0) ? "enabled" : "disabled");
4188 if ((rc
= fan_get_speed(&speed
)) < 0)
4191 len
+= sprintf(p
+ len
, "speed:\t\t%d\n", speed
);
4193 if (status
& TP_EC_FAN_FULLSPEED
)
4194 /* Disengaged mode takes precedence */
4195 len
+= sprintf(p
+ len
, "level:\t\tdisengaged\n");
4196 else if (status
& TP_EC_FAN_AUTO
)
4197 len
+= sprintf(p
+ len
, "level:\t\tauto\n");
4199 len
+= sprintf(p
+ len
, "level:\t\t%d\n", status
);
4202 case TPACPI_FAN_NONE
:
4204 len
+= sprintf(p
+ len
, "status:\t\tnot supported\n");
4207 if (fan_control_commands
& TPACPI_FAN_CMD_LEVEL
) {
4208 len
+= sprintf(p
+ len
, "commands:\tlevel <level>");
4210 switch (fan_control_access_mode
) {
4211 case TPACPI_FAN_WR_ACPI_SFAN
:
4212 len
+= sprintf(p
+ len
, " (<level> is 0-7)\n");
4216 len
+= sprintf(p
+ len
, " (<level> is 0-7, "
4217 "auto, disengaged, full-speed)\n");
4222 if (fan_control_commands
& TPACPI_FAN_CMD_ENABLE
)
4223 len
+= sprintf(p
+ len
, "commands:\tenable, disable\n"
4224 "commands:\twatchdog <timeout> (<timeout> is 0 (off), "
4225 "1-120 (seconds))\n");
4227 if (fan_control_commands
& TPACPI_FAN_CMD_SPEED
)
4228 len
+= sprintf(p
+ len
, "commands:\tspeed <speed>"
4229 " (<speed> is 0-65535)\n");
4234 static int fan_write_cmd_level(const char *cmd
, int *rc
)
4238 if (strlencmp(cmd
, "level auto") == 0)
4239 level
= TP_EC_FAN_AUTO
;
4240 else if ((strlencmp(cmd
, "level disengaged") == 0) |
4241 (strlencmp(cmd
, "level full-speed") == 0))
4242 level
= TP_EC_FAN_FULLSPEED
;
4243 else if (sscanf(cmd
, "level %d", &level
) != 1)
4246 if ((*rc
= fan_set_level_safe(level
)) == -ENXIO
)
4247 printk(IBM_ERR
"level command accepted for unsupported "
4248 "access mode %d", fan_control_access_mode
);
4253 static int fan_write_cmd_enable(const char *cmd
, int *rc
)
4255 if (strlencmp(cmd
, "enable") != 0)
4258 if ((*rc
= fan_set_enable()) == -ENXIO
)
4259 printk(IBM_ERR
"enable command accepted for unsupported "
4260 "access mode %d", fan_control_access_mode
);
4265 static int fan_write_cmd_disable(const char *cmd
, int *rc
)
4267 if (strlencmp(cmd
, "disable") != 0)
4270 if ((*rc
= fan_set_disable()) == -ENXIO
)
4271 printk(IBM_ERR
"disable command accepted for unsupported "
4272 "access mode %d", fan_control_access_mode
);
4277 static int fan_write_cmd_speed(const char *cmd
, int *rc
)
4282 * Support speed <low> <medium> <high> ? */
4284 if (sscanf(cmd
, "speed %d", &speed
) != 1)
4287 if ((*rc
= fan_set_speed(speed
)) == -ENXIO
)
4288 printk(IBM_ERR
"speed command accepted for unsupported "
4289 "access mode %d", fan_control_access_mode
);
4294 static int fan_write_cmd_watchdog(const char *cmd
, int *rc
)
4298 if (sscanf(cmd
, "watchdog %d", &interval
) != 1)
4301 if (interval
< 0 || interval
> 120)
4304 fan_watchdog_maxinterval
= interval
;
4309 static int fan_write(char *buf
)
4314 while (!rc
&& (cmd
= next_cmd(&buf
))) {
4315 if (!((fan_control_commands
& TPACPI_FAN_CMD_LEVEL
) &&
4316 fan_write_cmd_level(cmd
, &rc
)) &&
4317 !((fan_control_commands
& TPACPI_FAN_CMD_ENABLE
) &&
4318 (fan_write_cmd_enable(cmd
, &rc
) ||
4319 fan_write_cmd_disable(cmd
, &rc
) ||
4320 fan_write_cmd_watchdog(cmd
, &rc
))) &&
4321 !((fan_control_commands
& TPACPI_FAN_CMD_SPEED
) &&
4322 fan_write_cmd_speed(cmd
, &rc
))
4326 fan_watchdog_reset();
4332 static struct ibm_struct fan_driver_data
= {
4339 /****************************************************************************
4340 ****************************************************************************
4344 ****************************************************************************
4345 ****************************************************************************/
4348 static struct proc_dir_entry
*proc_dir
;
4350 /* Subdriver registry */
4351 static LIST_HEAD(tpacpi_all_drivers
);
4355 * Module and infrastructure proble, init and exit handling
4358 #ifdef CONFIG_THINKPAD_ACPI_DEBUG
4359 static const char * __init
str_supported(int is_supported
)
4361 static char text_unsupported
[] __initdata
= "not supported";
4363 return (is_supported
)? &text_unsupported
[4] : &text_unsupported
[0];
4365 #endif /* CONFIG_THINKPAD_ACPI_DEBUG */
4367 static int __init
ibm_init(struct ibm_init_struct
*iibm
)
4370 struct ibm_struct
*ibm
= iibm
->data
;
4371 struct proc_dir_entry
*entry
;
4373 BUG_ON(ibm
== NULL
);
4375 INIT_LIST_HEAD(&ibm
->all_drivers
);
4377 if (ibm
->flags
.experimental
&& !experimental
)
4380 dbg_printk(TPACPI_DBG_INIT
,
4381 "probing for %s\n", ibm
->name
);
4384 ret
= iibm
->init(iibm
);
4386 return 0; /* probe failed */
4390 ibm
->flags
.init_called
= 1;
4394 if (ibm
->acpi
->hid
) {
4395 ret
= register_tpacpi_subdriver(ibm
);
4400 if (ibm
->acpi
->notify
) {
4401 ret
= setup_acpi_notify(ibm
);
4402 if (ret
== -ENODEV
) {
4403 printk(IBM_NOTICE
"disabling subdriver %s\n",
4413 dbg_printk(TPACPI_DBG_INIT
,
4414 "%s installed\n", ibm
->name
);
4417 entry
= create_proc_entry(ibm
->name
,
4418 S_IFREG
| S_IRUGO
| S_IWUSR
,
4421 printk(IBM_ERR
"unable to create proc entry %s\n",
4426 entry
->owner
= THIS_MODULE
;
4428 entry
->read_proc
= &dispatch_procfs_read
;
4430 entry
->write_proc
= &dispatch_procfs_write
;
4431 ibm
->flags
.proc_created
= 1;
4434 list_add_tail(&ibm
->all_drivers
, &tpacpi_all_drivers
);
4439 dbg_printk(TPACPI_DBG_INIT
,
4440 "%s: at error exit path with result %d\n",
4444 return (ret
< 0)? ret
: 0;
4447 static void ibm_exit(struct ibm_struct
*ibm
)
4449 dbg_printk(TPACPI_DBG_EXIT
, "removing %s\n", ibm
->name
);
4451 list_del_init(&ibm
->all_drivers
);
4453 if (ibm
->flags
.acpi_notify_installed
) {
4454 dbg_printk(TPACPI_DBG_EXIT
,
4455 "%s: acpi_remove_notify_handler\n", ibm
->name
);
4457 acpi_remove_notify_handler(*ibm
->acpi
->handle
,
4459 dispatch_acpi_notify
);
4460 ibm
->flags
.acpi_notify_installed
= 0;
4461 ibm
->flags
.acpi_notify_installed
= 0;
4464 if (ibm
->flags
.proc_created
) {
4465 dbg_printk(TPACPI_DBG_EXIT
,
4466 "%s: remove_proc_entry\n", ibm
->name
);
4467 remove_proc_entry(ibm
->name
, proc_dir
);
4468 ibm
->flags
.proc_created
= 0;
4471 if (ibm
->flags
.acpi_driver_registered
) {
4472 dbg_printk(TPACPI_DBG_EXIT
,
4473 "%s: acpi_bus_unregister_driver\n", ibm
->name
);
4475 acpi_bus_unregister_driver(ibm
->acpi
->driver
);
4476 kfree(ibm
->acpi
->driver
);
4477 ibm
->acpi
->driver
= NULL
;
4478 ibm
->flags
.acpi_driver_registered
= 0;
4481 if (ibm
->flags
.init_called
&& ibm
->exit
) {
4483 ibm
->flags
.init_called
= 0;
4486 dbg_printk(TPACPI_DBG_INIT
, "finished removing %s\n", ibm
->name
);
4491 static void __init
get_thinkpad_model_data(struct thinkpad_id_data
*tp
)
4493 struct dmi_device
*dev
= NULL
;
4494 char ec_fw_string
[18];
4499 memset(tp
, 0, sizeof(*tp
));
4501 if (dmi_name_in_vendors("IBM"))
4502 tp
->vendor
= PCI_VENDOR_ID_IBM
;
4503 else if (dmi_name_in_vendors("LENOVO"))
4504 tp
->vendor
= PCI_VENDOR_ID_LENOVO
;
4508 tp
->bios_version_str
= kstrdup(dmi_get_system_info(DMI_BIOS_VERSION
),
4510 if (!tp
->bios_version_str
)
4512 tp
->bios_model
= tp
->bios_version_str
[0]
4513 | (tp
->bios_version_str
[1] << 8);
4516 * ThinkPad T23 or newer, A31 or newer, R50e or newer,
4517 * X32 or newer, all Z series; Some models must have an
4518 * up-to-date BIOS or they will not be detected.
4520 * See http://thinkwiki.org/wiki/List_of_DMI_IDs
4522 while ((dev
= dmi_find_device(DMI_DEV_TYPE_OEM_STRING
, NULL
, dev
))) {
4523 if (sscanf(dev
->name
,
4524 "IBM ThinkPad Embedded Controller -[%17c",
4525 ec_fw_string
) == 1) {
4526 ec_fw_string
[sizeof(ec_fw_string
) - 1] = 0;
4527 ec_fw_string
[strcspn(ec_fw_string
, " ]")] = 0;
4529 tp
->ec_version_str
= kstrdup(ec_fw_string
, GFP_KERNEL
);
4530 tp
->ec_model
= ec_fw_string
[0]
4531 | (ec_fw_string
[1] << 8);
4536 tp
->model_str
= kstrdup(dmi_get_system_info(DMI_PRODUCT_VERSION
),
4538 if (strnicmp(tp
->model_str
, "ThinkPad", 8) != 0) {
4539 kfree(tp
->model_str
);
4540 tp
->model_str
= NULL
;
4544 static int __init
probe_for_thinkpad(void)
4552 * Non-ancient models have better DMI tagging, but very old models
4555 is_thinkpad
= (thinkpad_id
.model_str
!= NULL
);
4557 /* ec is required because many other handles are relative to it */
4558 IBM_ACPIHANDLE_INIT(ec
);
4562 "Not yet supported ThinkPad detected!\n");
4567 * Risks a regression on very old machines, but reduces potential
4568 * false positives a damn great deal
4571 is_thinkpad
= (thinkpad_id
.vendor
== PCI_VENDOR_ID_IBM
);
4573 if (!is_thinkpad
&& !force_load
)
4580 /* Module init, exit, parameters */
4582 static struct ibm_init_struct ibms_init
[] __initdata
= {
4584 .init
= thinkpad_acpi_driver_init
,
4585 .data
= &thinkpad_acpi_driver_data
,
4588 .init
= hotkey_init
,
4589 .data
= &hotkey_driver_data
,
4592 .init
= bluetooth_init
,
4593 .data
= &bluetooth_driver_data
,
4597 .data
= &wan_driver_data
,
4601 .data
= &video_driver_data
,
4605 .data
= &light_driver_data
,
4607 #ifdef CONFIG_THINKPAD_ACPI_DOCK
4610 .data
= &dock_driver_data
[0],
4614 .data
= &dock_driver_data
[1],
4617 #ifdef CONFIG_THINKPAD_ACPI_BAY
4620 .data
= &bay_driver_data
,
4625 .data
= &cmos_driver_data
,
4629 .data
= &led_driver_data
,
4633 .data
= &beep_driver_data
,
4636 .init
= thermal_init
,
4637 .data
= &thermal_driver_data
,
4640 .data
= &ecdump_driver_data
,
4643 .init
= brightness_init
,
4644 .data
= &brightness_driver_data
,
4647 .data
= &volume_driver_data
,
4651 .data
= &fan_driver_data
,
4655 static int __init
set_ibm_param(const char *val
, struct kernel_param
*kp
)
4658 struct ibm_struct
*ibm
;
4660 for (i
= 0; i
< ARRAY_SIZE(ibms_init
); i
++) {
4661 ibm
= ibms_init
[i
].data
;
4662 BUG_ON(ibm
== NULL
);
4664 if (strcmp(ibm
->name
, kp
->name
) == 0 && ibm
->write
) {
4665 if (strlen(val
) > sizeof(ibms_init
[i
].param
) - 2)
4667 strcpy(ibms_init
[i
].param
, val
);
4668 strcat(ibms_init
[i
].param
, ",");
4676 static int experimental
;
4677 module_param(experimental
, int, 0);
4679 static u32 dbg_level
;
4680 module_param_named(debug
, dbg_level
, uint
, 0);
4682 static int force_load
;
4683 module_param(force_load
, bool, 0);
4685 static int fan_control_allowed
;
4686 module_param_named(fan_control
, fan_control_allowed
, bool, 0);
4688 static int brightness_mode
;
4689 module_param_named(brightness_mode
, brightness_mode
, int, 0);
4691 static unsigned int hotkey_report_mode
;
4692 module_param(hotkey_report_mode
, uint
, 0);
4694 #define IBM_PARAM(feature) \
4695 module_param_call(feature, set_ibm_param, NULL, NULL, 0)
4698 IBM_PARAM(bluetooth
);
4701 #ifdef CONFIG_THINKPAD_ACPI_DOCK
4704 #ifdef CONFIG_THINKPAD_ACPI_BAY
4706 #endif /* CONFIG_THINKPAD_ACPI_BAY */
4711 IBM_PARAM(brightness
);
4715 static int __init
thinkpad_acpi_module_init(void)
4719 tpacpi_lifecycle
= TPACPI_LIFE_INIT
;
4721 /* Parameter checking */
4722 if (hotkey_report_mode
> 2)
4725 /* Driver-level probe */
4727 get_thinkpad_model_data(&thinkpad_id
);
4728 ret
= probe_for_thinkpad();
4730 thinkpad_acpi_module_exit();
4734 /* Driver initialization */
4736 IBM_ACPIHANDLE_INIT(ecrd
);
4737 IBM_ACPIHANDLE_INIT(ecwr
);
4739 proc_dir
= proc_mkdir(IBM_PROC_DIR
, acpi_root_dir
);
4741 printk(IBM_ERR
"unable to create proc dir " IBM_PROC_DIR
);
4742 thinkpad_acpi_module_exit();
4745 proc_dir
->owner
= THIS_MODULE
;
4747 ret
= platform_driver_register(&tpacpi_pdriver
);
4749 printk(IBM_ERR
"unable to register platform driver\n");
4750 thinkpad_acpi_module_exit();
4753 tp_features
.platform_drv_registered
= 1;
4755 ret
= tpacpi_create_driver_attributes(&tpacpi_pdriver
.driver
);
4757 printk(IBM_ERR
"unable to create sysfs driver attributes\n");
4758 thinkpad_acpi_module_exit();
4761 tp_features
.platform_drv_attrs_registered
= 1;
4764 /* Device initialization */
4765 tpacpi_pdev
= platform_device_register_simple(IBM_DRVR_NAME
, -1,
4767 if (IS_ERR(tpacpi_pdev
)) {
4768 ret
= PTR_ERR(tpacpi_pdev
);
4770 printk(IBM_ERR
"unable to register platform device\n");
4771 thinkpad_acpi_module_exit();
4774 tpacpi_hwmon
= hwmon_device_register(&tpacpi_pdev
->dev
);
4775 if (IS_ERR(tpacpi_hwmon
)) {
4776 ret
= PTR_ERR(tpacpi_hwmon
);
4777 tpacpi_hwmon
= NULL
;
4778 printk(IBM_ERR
"unable to register hwmon device\n");
4779 thinkpad_acpi_module_exit();
4782 mutex_init(&tpacpi_inputdev_send_mutex
);
4783 tpacpi_inputdev
= input_allocate_device();
4784 if (!tpacpi_inputdev
) {
4785 printk(IBM_ERR
"unable to allocate input device\n");
4786 thinkpad_acpi_module_exit();
4789 /* Prepare input device, but don't register */
4790 tpacpi_inputdev
->name
= "ThinkPad Extra Buttons";
4791 tpacpi_inputdev
->phys
= IBM_DRVR_NAME
"/input0";
4792 tpacpi_inputdev
->id
.bustype
= BUS_HOST
;
4793 tpacpi_inputdev
->id
.vendor
= (thinkpad_id
.vendor
) ?
4794 thinkpad_id
.vendor
:
4796 tpacpi_inputdev
->id
.product
= TPACPI_HKEY_INPUT_PRODUCT
;
4797 tpacpi_inputdev
->id
.version
= TPACPI_HKEY_INPUT_VERSION
;
4799 for (i
= 0; i
< ARRAY_SIZE(ibms_init
); i
++) {
4800 ret
= ibm_init(&ibms_init
[i
]);
4801 if (ret
>= 0 && *ibms_init
[i
].param
)
4802 ret
= ibms_init
[i
].data
->write(ibms_init
[i
].param
);
4804 thinkpad_acpi_module_exit();
4808 ret
= input_register_device(tpacpi_inputdev
);
4810 printk(IBM_ERR
"unable to register input device\n");
4811 thinkpad_acpi_module_exit();
4814 tp_features
.input_device_registered
= 1;
4817 tpacpi_lifecycle
= TPACPI_LIFE_RUNNING
;
4821 static void thinkpad_acpi_module_exit(void)
4823 struct ibm_struct
*ibm
, *itmp
;
4825 tpacpi_lifecycle
= TPACPI_LIFE_EXITING
;
4827 list_for_each_entry_safe_reverse(ibm
, itmp
,
4828 &tpacpi_all_drivers
,
4833 dbg_printk(TPACPI_DBG_INIT
, "finished subdriver exit path...\n");
4835 if (tpacpi_inputdev
) {
4836 if (tp_features
.input_device_registered
)
4837 input_unregister_device(tpacpi_inputdev
);
4839 input_free_device(tpacpi_inputdev
);
4843 hwmon_device_unregister(tpacpi_hwmon
);
4846 platform_device_unregister(tpacpi_pdev
);
4848 if (tp_features
.platform_drv_attrs_registered
)
4849 tpacpi_remove_driver_attributes(&tpacpi_pdriver
.driver
);
4851 if (tp_features
.platform_drv_registered
)
4852 platform_driver_unregister(&tpacpi_pdriver
);
4855 remove_proc_entry(IBM_PROC_DIR
, acpi_root_dir
);
4857 kfree(thinkpad_id
.bios_version_str
);
4858 kfree(thinkpad_id
.ec_version_str
);
4859 kfree(thinkpad_id
.model_str
);
4862 module_init(thinkpad_acpi_module_init
);
4863 module_exit(thinkpad_acpi_module_exit
);