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-rw-r--r--Documentation/ibm-acpi.txt75
-rw-r--r--drivers/acpi/asus_acpi.c67
-rw-r--r--drivers/acpi/events/evrgnini.c13
-rw-r--r--drivers/acpi/ibm_acpi.c2
4 files changed, 68 insertions, 89 deletions
diff --git a/Documentation/ibm-acpi.txt b/Documentation/ibm-acpi.txt
index 71aa40345272..e50595bfd8ea 100644
--- a/Documentation/ibm-acpi.txt
+++ b/Documentation/ibm-acpi.txt
@@ -30,9 +30,10 @@ detailed description):
30 - ACPI sounds 30 - ACPI sounds
31 - temperature sensors 31 - temperature sensors
32 - Experimental: embedded controller register dump 32 - Experimental: embedded controller register dump
33 - Experimental: LCD brightness control 33 - LCD brightness control
34 - Experimental: volume control 34 - Volume control
35 - Experimental: fan speed, fan enable/disable 35 - Experimental: fan speed, fan enable/disable
36 - Experimental: WAN enable and disable
36 37
37A compatibility table by model and feature is maintained on the web 38A compatibility table by model and feature is maintained on the web
38site, http://ibm-acpi.sf.net/. I appreciate any success or failure 39site, http://ibm-acpi.sf.net/. I appreciate any success or failure
@@ -52,40 +53,7 @@ Installation
52 53
53If you are compiling this driver as included in the Linux kernel 54If you are compiling this driver as included in the Linux kernel
54sources, simply enable the CONFIG_ACPI_IBM option (Power Management / 55sources, simply enable the CONFIG_ACPI_IBM option (Power Management /
55ACPI / IBM ThinkPad Laptop Extras). The rest of this section describes 56ACPI / IBM ThinkPad Laptop Extras).
56how to install this driver when downloaded from the web site.
57
58First, you need to get a kernel with ACPI support up and running.
59Please refer to http://acpi.sourceforge.net/ for help with this
60step. How successful you will be depends a lot on you ThinkPad model,
61the kernel you are using and any additional patches applied. The
62kernel provided with your distribution may not be good enough. I
63needed to compile a 2.6.7 kernel with the 20040715 ACPI patch to get
64ACPI working reliably on my ThinkPad X40. Old ThinkPad models may not
65be supported at all.
66
67Assuming you have the basic ACPI support working (e.g. you can see the
68/proc/acpi directory), follow the following steps to install this
69driver:
70
71 - unpack the archive:
72
73 tar xzvf ibm-acpi-x.y.tar.gz; cd ibm-acpi-x.y
74
75 - compile the driver:
76
77 make
78
79 - install the module in your kernel modules directory:
80
81 make install
82
83 - load the module:
84
85 modprobe ibm_acpi
86
87After loading the module, check the "dmesg" output for any error messages.
88
89 57
90Features 58Features
91-------- 59--------
@@ -523,13 +491,8 @@ registers contain the current battery capacity, etc. If you experiment
523with this, do send me your results (including some complete dumps with 491with this, do send me your results (including some complete dumps with
524a description of the conditions when they were taken.) 492a description of the conditions when they were taken.)
525 493
526EXPERIMENTAL: LCD brightness control -- /proc/acpi/ibm/brightness 494LCD brightness control -- /proc/acpi/ibm/brightness
527----------------------------------------------------------------- 495---------------------------------------------------
528
529This feature is marked EXPERIMENTAL because the implementation
530directly accesses hardware registers and may not work as expected. USE
531WITH CAUTION! To use this feature, you need to supply the
532experimental=1 parameter when loading the module.
533 496
534This feature allows software control of the LCD brightness on ThinkPad 497This feature allows software control of the LCD brightness on ThinkPad
535models which don't have a hardware brightness slider. The available 498models which don't have a hardware brightness slider. The available
@@ -542,13 +505,8 @@ commands are:
542The <level> number range is 0 to 7, although not all of them may be 505The <level> number range is 0 to 7, although not all of them may be
543distinct. The current brightness level is shown in the file. 506distinct. The current brightness level is shown in the file.
544 507
545EXPERIMENTAL: Volume control -- /proc/acpi/ibm/volume 508Volume control -- /proc/acpi/ibm/volume
546----------------------------------------------------- 509---------------------------------------
547
548This feature is marked EXPERIMENTAL because the implementation
549directly accesses hardware registers and may not work as expected. USE
550WITH CAUTION! To use this feature, you need to supply the
551experimental=1 parameter when loading the module.
552 510
553This feature allows volume control on ThinkPad models which don't have 511This feature allows volume control on ThinkPad models which don't have
554a hardware volume knob. The available commands are: 512a hardware volume knob. The available commands are:
@@ -611,6 +569,23 @@ with the following command:
611 569
612 echo 'level <level>' > /proc/acpi/ibm/thermal 570 echo 'level <level>' > /proc/acpi/ibm/thermal
613 571
572EXPERIMENTAL: WAN -- /proc/acpi/ibm/wan
573---------------------------------------
574
575This feature is marked EXPERIMENTAL because the implementation
576directly accesses hardware registers and may not work as expected. USE
577WITH CAUTION! To use this feature, you need to supply the
578experimental=1 parameter when loading the module.
579
580This feature shows the presence and current state of a WAN (Sierra
581Wireless EV-DO) device. If WAN is installed, the following commands can
582be used:
583
584 echo enable > /proc/acpi/ibm/wan
585 echo disable > /proc/acpi/ibm/wan
586
587It was tested on a Lenovo Thinkpad X60. It should probably work on other
588Thinkpad models which come with this module installed.
614 589
615Multiple Commands, Module Parameters 590Multiple Commands, Module Parameters
616------------------------------------ 591------------------------------------
diff --git a/drivers/acpi/asus_acpi.c b/drivers/acpi/asus_acpi.c
index e9ee4c52a5f6..c7ac9297a204 100644
--- a/drivers/acpi/asus_acpi.c
+++ b/drivers/acpi/asus_acpi.c
@@ -138,6 +138,7 @@ struct asus_hotk {
138 S2x, //S200 (J1 reported), Victor MP-XP7210 138 S2x, //S200 (J1 reported), Victor MP-XP7210
139 W1N, //W1000N 139 W1N, //W1000N
140 W5A, //W5A 140 W5A, //W5A
141 W3V, //W3030V
141 xxN, //M2400N, M3700N, M5200N, M6800N, S1300N, S5200N 142 xxN, //M2400N, M3700N, M5200N, M6800N, S1300N, S5200N
142 //(Centrino) 143 //(Centrino)
143 END_MODEL 144 END_MODEL
@@ -376,6 +377,17 @@ static struct model_data model_conf[END_MODEL] = {
376 .display_get = "\\ADVG"}, 377 .display_get = "\\ADVG"},
377 378
378 { 379 {
380 .name = "W3V",
381 .mt_mled = "MLED",
382 .mt_wled = "WLED",
383 .mt_lcd_switch = xxN_PREFIX "_Q10",
384 .lcd_status = "\\BKLT",
385 .brightness_set = "SPLV",
386 .brightness_get = "GPLV",
387 .display_set = "SDSP",
388 .display_get = "\\INFB"},
389
390 {
379 .name = "xxN", 391 .name = "xxN",
380 .mt_mled = "MLED", 392 .mt_mled = "MLED",
381/* WLED present, but not controlled by ACPI */ 393/* WLED present, but not controlled by ACPI */
@@ -555,11 +567,11 @@ static int
555write_led(const char __user * buffer, unsigned long count, 567write_led(const char __user * buffer, unsigned long count,
556 char *ledname, int ledmask, int invert) 568 char *ledname, int ledmask, int invert)
557{ 569{
558 int value; 570 int rv, value;
559 int led_out = 0; 571 int led_out = 0;
560 572
561 count = parse_arg(buffer, count, &value); 573 rv = parse_arg(buffer, count, &value);
562 if (count > 0) 574 if (rv > 0)
563 led_out = value ? 1 : 0; 575 led_out = value ? 1 : 0;
564 576
565 hotk->status = 577 hotk->status =
@@ -572,7 +584,7 @@ write_led(const char __user * buffer, unsigned long count,
572 printk(KERN_WARNING "Asus ACPI: LED (%s) write failed\n", 584 printk(KERN_WARNING "Asus ACPI: LED (%s) write failed\n",
573 ledname); 585 ledname);
574 586
575 return count; 587 return rv;
576} 588}
577 589
578/* 590/*
@@ -607,20 +619,18 @@ static int
607proc_write_ledd(struct file *file, const char __user * buffer, 619proc_write_ledd(struct file *file, const char __user * buffer,
608 unsigned long count, void *data) 620 unsigned long count, void *data)
609{ 621{
610 int value; 622 int rv, value;
611 623
612 count = parse_arg(buffer, count, &value); 624 rv = parse_arg(buffer, count, &value);
613 if (count > 0) { 625 if (rv > 0) {
614 if (!write_acpi_int 626 if (!write_acpi_int
615 (hotk->handle, hotk->methods->mt_ledd, value, NULL)) 627 (hotk->handle, hotk->methods->mt_ledd, value, NULL))
616 printk(KERN_WARNING 628 printk(KERN_WARNING
617 "Asus ACPI: LED display write failed\n"); 629 "Asus ACPI: LED display write failed\n");
618 else 630 else
619 hotk->ledd_status = (u32) value; 631 hotk->ledd_status = (u32) value;
620 } else if (count < 0) 632 }
621 printk(KERN_WARNING "Asus ACPI: Error reading user input\n"); 633 return rv;
622
623 return count;
624} 634}
625 635
626/* 636/*
@@ -761,12 +771,12 @@ static int
761proc_write_lcd(struct file *file, const char __user * buffer, 771proc_write_lcd(struct file *file, const char __user * buffer,
762 unsigned long count, void *data) 772 unsigned long count, void *data)
763{ 773{
764 int value; 774 int rv, value;
765 775
766 count = parse_arg(buffer, count, &value); 776 rv = parse_arg(buffer, count, &value);
767 if (count > 0) 777 if (rv > 0)
768 set_lcd_state(value); 778 set_lcd_state(value);
769 return count; 779 return rv;
770} 780}
771 781
772static int read_brightness(void) 782static int read_brightness(void)
@@ -830,18 +840,15 @@ static int
830proc_write_brn(struct file *file, const char __user * buffer, 840proc_write_brn(struct file *file, const char __user * buffer,
831 unsigned long count, void *data) 841 unsigned long count, void *data)
832{ 842{
833 int value; 843 int rv, value;
834 844
835 count = parse_arg(buffer, count, &value); 845 rv = parse_arg(buffer, count, &value);
836 if (count > 0) { 846 if (rv > 0) {
837 value = (0 < value) ? ((15 < value) ? 15 : value) : 0; 847 value = (0 < value) ? ((15 < value) ? 15 : value) : 0;
838 /* 0 <= value <= 15 */ 848 /* 0 <= value <= 15 */
839 set_brightness(value); 849 set_brightness(value);
840 } else if (count < 0) {
841 printk(KERN_WARNING "Asus ACPI: Error reading user input\n");
842 } 850 }
843 851 return rv;
844 return count;
845} 852}
846 853
847static void set_display(int value) 854static void set_display(int value)
@@ -880,15 +887,12 @@ static int
880proc_write_disp(struct file *file, const char __user * buffer, 887proc_write_disp(struct file *file, const char __user * buffer,
881 unsigned long count, void *data) 888 unsigned long count, void *data)
882{ 889{
883 int value; 890 int rv, value;
884 891
885 count = parse_arg(buffer, count, &value); 892 rv = parse_arg(buffer, count, &value);
886 if (count > 0) 893 if (rv > 0)
887 set_display(value); 894 set_display(value);
888 else if (count < 0) 895 return rv;
889 printk(KERN_WARNING "Asus ACPI: Error reading user input\n");
890
891 return count;
892} 896}
893 897
894typedef int (proc_readfunc) (char *page, char **start, off_t off, int count, 898typedef int (proc_readfunc) (char *page, char **start, off_t off, int count,
@@ -1097,6 +1101,8 @@ static int asus_model_match(char *model)
1097 return A4G; 1101 return A4G;
1098 else if (strncmp(model, "W1N", 3) == 0) 1102 else if (strncmp(model, "W1N", 3) == 0)
1099 return W1N; 1103 return W1N;
1104 else if (strncmp(model, "W3V", 3) == 0)
1105 return W3V;
1100 else if (strncmp(model, "W5A", 3) == 0) 1106 else if (strncmp(model, "W5A", 3) == 0)
1101 return W5A; 1107 return W5A;
1102 else 1108 else
@@ -1200,9 +1206,10 @@ static int asus_hotk_get_info(void)
1200 hotk->methods->mt_wled = NULL; 1206 hotk->methods->mt_wled = NULL;
1201 /* L5D's WLED is not controlled by ACPI */ 1207 /* L5D's WLED is not controlled by ACPI */
1202 else if (strncmp(string, "M2N", 3) == 0 || 1208 else if (strncmp(string, "M2N", 3) == 0 ||
1209 strncmp(string, "W3V", 3) == 0 ||
1203 strncmp(string, "S1N", 3) == 0) 1210 strncmp(string, "S1N", 3) == 0)
1204 hotk->methods->mt_wled = "WLED"; 1211 hotk->methods->mt_wled = "WLED";
1205 /* M2N and S1N have a usable WLED */ 1212 /* M2N, S1N and W3V have a usable WLED */
1206 else if (asus_info) { 1213 else if (asus_info) {
1207 if (strncmp(asus_info->oem_table_id, "L1", 2) == 0) 1214 if (strncmp(asus_info->oem_table_id, "L1", 2) == 0)
1208 hotk->methods->mled_status = NULL; 1215 hotk->methods->mled_status = NULL;
diff --git a/drivers/acpi/events/evrgnini.c b/drivers/acpi/events/evrgnini.c
index 5b3c7a85eb9a..203d1359190a 100644
--- a/drivers/acpi/events/evrgnini.c
+++ b/drivers/acpi/events/evrgnini.c
@@ -225,13 +225,12 @@ acpi_ev_pci_config_region_setup(acpi_handle handle,
225 if (! 225 if (!
226 (ACPI_STRNCMP 226 (ACPI_STRNCMP
227 (object_hID.value, PCI_ROOT_HID_STRING, 227 (object_hID.value, PCI_ROOT_HID_STRING,
228 sizeof(PCI_ROOT_HID_STRING)) 228 sizeof(PCI_ROOT_HID_STRING)))
229 || 229 ||
230 !(ACPI_STRNCMP 230 !(ACPI_STRNCMP
231 (object_hID.value, 231 (object_hID.value,
232 PCI_EXPRESS_ROOT_HID_STRING, 232 PCI_EXPRESS_ROOT_HID_STRING,
233 sizeof(PCI_EXPRESS_ROOT_HID_STRING))))) 233 sizeof(PCI_EXPRESS_ROOT_HID_STRING)))) {
234 {
235 234
236 /* Install a handler for this PCI root bridge */ 235 /* Install a handler for this PCI root bridge */
237 236
diff --git a/drivers/acpi/ibm_acpi.c b/drivers/acpi/ibm_acpi.c
index 15fc12482ba0..003a9876c968 100644
--- a/drivers/acpi/ibm_acpi.c
+++ b/drivers/acpi/ibm_acpi.c
@@ -1702,13 +1702,11 @@ static struct ibm_struct ibms[] = {
1702 .name = "brightness", 1702 .name = "brightness",
1703 .read = brightness_read, 1703 .read = brightness_read,
1704 .write = brightness_write, 1704 .write = brightness_write,
1705 .experimental = 1,
1706 }, 1705 },
1707 { 1706 {
1708 .name = "volume", 1707 .name = "volume",
1709 .read = volume_read, 1708 .read = volume_read,
1710 .write = volume_write, 1709 .write = volume_write,
1711 .experimental = 1,
1712 }, 1710 },
1713 { 1711 {
1714 .name = "fan", 1712 .name = "fan",