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-rw-r--r--drivers/misc/Kconfig66
-rw-r--r--drivers/misc/Makefile1
-rw-r--r--drivers/misc/asus-laptop.c151
-rw-r--r--drivers/misc/sony-laptop.c2131
-rw-r--r--drivers/misc/thinkpad_acpi.c4312
-rw-r--r--drivers/misc/thinkpad_acpi.h572
6 files changed, 6970 insertions, 263 deletions
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 80b199fa0aa9..a3c525b2616a 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -112,14 +112,70 @@ config SONY_LAPTOP
112 depends on X86 && ACPI 112 depends on X86 && ACPI
113 select BACKLIGHT_CLASS_DEVICE 113 select BACKLIGHT_CLASS_DEVICE
114 ---help--- 114 ---help---
115 This mini-driver drives the SNC device present in the ACPI BIOS of 115 This mini-driver drives the SNC and SPIC devices present in the ACPI
116 the Sony Vaio laptops. 116 BIOS of the Sony Vaio laptops.
117 117
118 It gives access to some extra laptop functionalities. In its current 118 It gives access to some extra laptop functionalities like Bluetooth,
119 form, this driver let the user set or query the screen brightness 119 screen brightness control, Fn keys and allows powering on/off some
120 through the backlight subsystem and remove/apply power to some
121 devices. 120 devices.
122 121
123 Read <file:Documentation/sony-laptop.txt> for more information. 122 Read <file:Documentation/sony-laptop.txt> for more information.
124 123
124config SONY_LAPTOP_OLD
125 bool "Sonypi compatibility"
126 depends on SONY_LAPTOP
127 ---help---
128 Build the sonypi driver compatibility code into the sony-laptop driver.
129
130config THINKPAD_ACPI
131 tristate "ThinkPad ACPI Laptop Extras"
132 depends on X86 && ACPI
133 select BACKLIGHT_CLASS_DEVICE
134 select HWMON
135 ---help---
136 This is a driver for the IBM and Lenovo ThinkPad laptops. It adds
137 support for Fn-Fx key combinations, Bluetooth control, video
138 output switching, ThinkLight control, UltraBay eject and more.
139 For more information about this driver see
140 <file:Documentation/thinkpad-acpi.txt> and <http://ibm-acpi.sf.net/> .
141
142 This driver was formely known as ibm-acpi.
143
144 If you have an IBM or Lenovo ThinkPad laptop, say Y or M here.
145
146config THINKPAD_ACPI_DEBUG
147 bool "Verbose debug mode"
148 depends on THINKPAD_ACPI
149 default n
150 ---help---
151 Enables extra debugging information, at the expense of a slightly
152 increase in driver size.
153
154 If you are not sure, say N here.
155
156config THINKPAD_ACPI_DOCK
157 bool "Legacy Docking Station Support"
158 depends on THINKPAD_ACPI
159 depends on ACPI_DOCK=n
160 default n
161 ---help---
162 Allows the thinkpad_acpi driver to handle docking station events.
163 This support was made obsolete by the generic ACPI docking station
164 support (CONFIG_ACPI_DOCK). It will allow locking and removing the
165 laptop from the docking station, but will not properly connect PCI
166 devices.
167
168 If you are not sure, say N here.
169
170config THINKPAD_ACPI_BAY
171 bool "Legacy Removable Bay Support"
172 depends on THINKPAD_ACPI
173 default y
174 ---help---
175 Allows the thinkpad_acpi driver to handle removable bays. It will
176 eletrically disable the device in the bay, and also generate
177 notifications when the bay lever is ejected or inserted.
178
179 If you are not sure, say Y here.
180
125endmenu 181endmenu
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index 7793ccd79049..e32516459138 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -12,3 +12,4 @@ obj-$(CONFIG_TIFM_CORE) += tifm_core.o
12obj-$(CONFIG_TIFM_7XX1) += tifm_7xx1.o 12obj-$(CONFIG_TIFM_7XX1) += tifm_7xx1.o
13obj-$(CONFIG_SGI_IOC4) += ioc4.o 13obj-$(CONFIG_SGI_IOC4) += ioc4.o
14obj-$(CONFIG_SONY_LAPTOP) += sony-laptop.o 14obj-$(CONFIG_SONY_LAPTOP) += sony-laptop.o
15obj-$(CONFIG_THINKPAD_ACPI) += thinkpad_acpi.o
diff --git a/drivers/misc/asus-laptop.c b/drivers/misc/asus-laptop.c
index 4b232124a1ab..65c32a95e121 100644
--- a/drivers/misc/asus-laptop.c
+++ b/drivers/misc/asus-laptop.c
@@ -3,7 +3,7 @@
3 * 3 *
4 * 4 *
5 * Copyright (C) 2002-2005 Julien Lerouge, 2003-2006 Karol Kozimor 5 * Copyright (C) 2002-2005 Julien Lerouge, 2003-2006 Karol Kozimor
6 * Copyright (C) 2006 Corentin Chary 6 * Copyright (C) 2006-2007 Corentin Chary
7 * 7 *
8 * This program is free software; you can redistribute it and/or modify 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 9 * it under the terms of the GNU General Public License as published by
@@ -48,7 +48,7 @@
48#include <acpi/acpi_bus.h> 48#include <acpi/acpi_bus.h>
49#include <asm/uaccess.h> 49#include <asm/uaccess.h>
50 50
51#define ASUS_LAPTOP_VERSION "0.40" 51#define ASUS_LAPTOP_VERSION "0.41"
52 52
53#define ASUS_HOTK_NAME "Asus Laptop Support" 53#define ASUS_HOTK_NAME "Asus Laptop Support"
54#define ASUS_HOTK_CLASS "hotkey" 54#define ASUS_HOTK_CLASS "hotkey"
@@ -81,7 +81,8 @@
81#define TLED_ON 0x08 //touchpad LED 81#define TLED_ON 0x08 //touchpad LED
82#define RLED_ON 0x10 //Record LED 82#define RLED_ON 0x10 //Record LED
83#define PLED_ON 0x20 //Phone LED 83#define PLED_ON 0x20 //Phone LED
84#define LCD_ON 0x40 //LCD backlight 84#define GLED_ON 0x40 //Gaming LED
85#define LCD_ON 0x80 //LCD backlight
85 86
86#define ASUS_LOG ASUS_HOTK_FILE ": " 87#define ASUS_LOG ASUS_HOTK_FILE ": "
87#define ASUS_ERR KERN_ERR ASUS_LOG 88#define ASUS_ERR KERN_ERR ASUS_LOG
@@ -94,6 +95,19 @@ MODULE_AUTHOR("Julien Lerouge, Karol Kozimor, Corentin Chary");
94MODULE_DESCRIPTION(ASUS_HOTK_NAME); 95MODULE_DESCRIPTION(ASUS_HOTK_NAME);
95MODULE_LICENSE("GPL"); 96MODULE_LICENSE("GPL");
96 97
98/* WAPF defines the behavior of the Fn+Fx wlan key
99 * The significance of values is yet to be found, but
100 * most of the time:
101 * 0x0 will do nothing
102 * 0x1 will allow to control the device with Fn+Fx key.
103 * 0x4 will send an ACPI event (0x88) while pressing the Fn+Fx key
104 * 0x5 like 0x1 or 0x4
105 * So, if something doesn't work as you want, just try other values =)
106 */
107static uint wapf = 1;
108module_param(wapf, uint, 0644);
109MODULE_PARM_DESC(wapf, "WAPF value");
110
97#define ASUS_HANDLE(object, paths...) \ 111#define ASUS_HANDLE(object, paths...) \
98 static acpi_handle object##_handle = NULL; \ 112 static acpi_handle object##_handle = NULL; \
99 static char *object##_paths[] = { paths } 113 static char *object##_paths[] = { paths }
@@ -103,6 +117,7 @@ ASUS_HANDLE(mled_set, ASUS_HOTK_PREFIX "MLED");
103ASUS_HANDLE(tled_set, ASUS_HOTK_PREFIX "TLED"); 117ASUS_HANDLE(tled_set, ASUS_HOTK_PREFIX "TLED");
104ASUS_HANDLE(rled_set, ASUS_HOTK_PREFIX "RLED"); /* W1JC */ 118ASUS_HANDLE(rled_set, ASUS_HOTK_PREFIX "RLED"); /* W1JC */
105ASUS_HANDLE(pled_set, ASUS_HOTK_PREFIX "PLED"); /* A7J */ 119ASUS_HANDLE(pled_set, ASUS_HOTK_PREFIX "PLED"); /* A7J */
120ASUS_HANDLE(gled_set, ASUS_HOTK_PREFIX "GLED"); /* G1, G2 (probably) */
106 121
107/* LEDD */ 122/* LEDD */
108ASUS_HANDLE(ledd_set, ASUS_HOTK_PREFIX "SLCM"); 123ASUS_HANDLE(ledd_set, ASUS_HOTK_PREFIX "SLCM");
@@ -221,6 +236,7 @@ ASUS_LED(mled, "mail");
221ASUS_LED(tled, "touchpad"); 236ASUS_LED(tled, "touchpad");
222ASUS_LED(rled, "record"); 237ASUS_LED(rled, "record");
223ASUS_LED(pled, "phone"); 238ASUS_LED(pled, "phone");
239ASUS_LED(gled, "gaming");
224 240
225/* 241/*
226 * This function evaluates an ACPI method, given an int as parameter, the 242 * This function evaluates an ACPI method, given an int as parameter, the
@@ -245,32 +261,19 @@ static int write_acpi_int(acpi_handle handle, const char *method, int val,
245 return (status == AE_OK); 261 return (status == AE_OK);
246} 262}
247 263
248static int read_acpi_int(acpi_handle handle, const char *method, int *val,
249 struct acpi_object_list *params)
250{
251 struct acpi_buffer output;
252 union acpi_object out_obj;
253 acpi_status status;
254
255 output.length = sizeof(out_obj);
256 output.pointer = &out_obj;
257
258 status = acpi_evaluate_object(handle, (char *)method, params, &output);
259 *val = out_obj.integer.value;
260 return (status == AE_OK) && (out_obj.type == ACPI_TYPE_INTEGER);
261}
262
263static int read_wireless_status(int mask) 264static int read_wireless_status(int mask)
264{ 265{
265 int status; 266 ulong status;
267 acpi_status rv = AE_OK;
266 268
267 if (!wireless_status_handle) 269 if (!wireless_status_handle)
268 return (hotk->status & mask) ? 1 : 0; 270 return (hotk->status & mask) ? 1 : 0;
269 271
270 if (read_acpi_int(wireless_status_handle, NULL, &status, NULL)) { 272 rv = acpi_evaluate_integer(wireless_status_handle, NULL, NULL, &status);
271 return (status & mask) ? 1 : 0; 273 if (ACPI_FAILURE(rv))
272 } else
273 printk(ASUS_WARNING "Error reading Wireless status\n"); 274 printk(ASUS_WARNING "Error reading Wireless status\n");
275 else
276 return (status & mask) ? 1 : 0;
274 277
275 return (hotk->status & mask) ? 1 : 0; 278 return (hotk->status & mask) ? 1 : 0;
276} 279}
@@ -285,19 +288,28 @@ static int read_status(int mask)
285 return (hotk->status & mask) ? 1 : 0; 288 return (hotk->status & mask) ? 1 : 0;
286} 289}
287 290
288static void write_status(acpi_handle handle, int out, int mask, int invert) 291static void write_status(acpi_handle handle, int out, int mask)
289{ 292{
290 hotk->status = (out) ? (hotk->status | mask) : (hotk->status & ~mask); 293 hotk->status = (out) ? (hotk->status | mask) : (hotk->status & ~mask);
291 294
292 if (invert) /* invert target value */ 295 switch (mask) {
296 case MLED_ON:
293 out = !out & 0x1; 297 out = !out & 0x1;
298 break;
299 case GLED_ON:
300 out = (out & 0x1) + 1;
301 break;
302 default:
303 out &= 0x1;
304 break;
305 }
294 306
295 if (handle && !write_acpi_int(handle, NULL, out, NULL)) 307 if (handle && !write_acpi_int(handle, NULL, out, NULL))
296 printk(ASUS_WARNING " write failed\n"); 308 printk(ASUS_WARNING " write failed %x\n", mask);
297} 309}
298 310
299/* /sys/class/led handlers */ 311/* /sys/class/led handlers */
300#define ASUS_LED_HANDLER(object, mask, invert) \ 312#define ASUS_LED_HANDLER(object, mask) \
301 static void object##_led_set(struct led_classdev *led_cdev, \ 313 static void object##_led_set(struct led_classdev *led_cdev, \
302 enum led_brightness value) \ 314 enum led_brightness value) \
303 { \ 315 { \
@@ -307,13 +319,14 @@ static void write_status(acpi_handle handle, int out, int mask, int invert)
307 static void object##_led_update(struct work_struct *ignored) \ 319 static void object##_led_update(struct work_struct *ignored) \
308 { \ 320 { \
309 int value = object##_led_wk; \ 321 int value = object##_led_wk; \
310 write_status(object##_set_handle, value, (mask), (invert)); \ 322 write_status(object##_set_handle, value, (mask)); \
311 } 323 }
312 324
313ASUS_LED_HANDLER(mled, MLED_ON, 1); 325ASUS_LED_HANDLER(mled, MLED_ON);
314ASUS_LED_HANDLER(pled, PLED_ON, 0); 326ASUS_LED_HANDLER(pled, PLED_ON);
315ASUS_LED_HANDLER(rled, RLED_ON, 0); 327ASUS_LED_HANDLER(rled, RLED_ON);
316ASUS_LED_HANDLER(tled, TLED_ON, 0); 328ASUS_LED_HANDLER(tled, TLED_ON);
329ASUS_LED_HANDLER(gled, GLED_ON);
317 330
318static int get_lcd_state(void) 331static int get_lcd_state(void)
319{ 332{
@@ -338,7 +351,7 @@ static int set_lcd_state(int value)
338 printk(ASUS_WARNING "Error switching LCD\n"); 351 printk(ASUS_WARNING "Error switching LCD\n");
339 } 352 }
340 353
341 write_status(NULL, lcd, LCD_ON, 0); 354 write_status(NULL, lcd, LCD_ON);
342 return 0; 355 return 0;
343} 356}
344 357
@@ -354,9 +367,11 @@ static void lcd_blank(int blank)
354 367
355static int read_brightness(struct backlight_device *bd) 368static int read_brightness(struct backlight_device *bd)
356{ 369{
357 int value; 370 ulong value;
371 acpi_status rv = AE_OK;
358 372
359 if (!read_acpi_int(brightness_get_handle, NULL, &value, NULL)) 373 rv = acpi_evaluate_integer(brightness_get_handle, NULL, NULL, &value);
374 if (ACPI_FAILURE(rv))
360 printk(ASUS_WARNING "Error reading brightness\n"); 375 printk(ASUS_WARNING "Error reading brightness\n");
361 376
362 return value; 377 return value;
@@ -403,8 +418,10 @@ static ssize_t show_infos(struct device *dev,
403 struct device_attribute *attr, char *page) 418 struct device_attribute *attr, char *page)
404{ 419{
405 int len = 0; 420 int len = 0;
406 int temp; 421 ulong temp;
407 char buf[16]; //enough for all info 422 char buf[16]; //enough for all info
423 acpi_status rv = AE_OK;
424
408 /* 425 /*
409 * We use the easy way, we don't care of off and count, so we don't set eof 426 * We use the easy way, we don't care of off and count, so we don't set eof
410 * to 1 427 * to 1
@@ -418,9 +435,10 @@ static ssize_t show_infos(struct device *dev,
418 * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card. 435 * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card.
419 * The significance of others is yet to be found. 436 * The significance of others is yet to be found.
420 */ 437 */
421 if (read_acpi_int(hotk->handle, "SFUN", &temp, NULL)) 438 rv = acpi_evaluate_integer(hotk->handle, "SFUN", NULL, &temp);
422 len += 439 if (!ACPI_FAILURE(rv))
423 sprintf(page + len, "SFUN value : 0x%04x\n", temp); 440 len += sprintf(page + len, "SFUN value : 0x%04x\n",
441 (uint) temp);
424 /* 442 /*
425 * Another value for userspace: the ASYM method returns 0x02 for 443 * Another value for userspace: the ASYM method returns 0x02 for
426 * battery low and 0x04 for battery critical, its readings tend to be 444 * battery low and 0x04 for battery critical, its readings tend to be
@@ -428,9 +446,10 @@ static ssize_t show_infos(struct device *dev,
428 * Note: since not all the laptops provide this method, errors are 446 * Note: since not all the laptops provide this method, errors are
429 * silently ignored. 447 * silently ignored.
430 */ 448 */
431 if (read_acpi_int(hotk->handle, "ASYM", &temp, NULL)) 449 rv = acpi_evaluate_integer(hotk->handle, "ASYM", NULL, &temp);
432 len += 450 if (!ACPI_FAILURE(rv))
433 sprintf(page + len, "ASYM value : 0x%04x\n", temp); 451 len += sprintf(page + len, "ASYM value : 0x%04x\n",
452 (uint) temp);
434 if (asus_info) { 453 if (asus_info) {
435 snprintf(buf, 16, "%d", asus_info->length); 454 snprintf(buf, 16, "%d", asus_info->length);
436 len += sprintf(page + len, "DSDT length : %s\n", buf); 455 len += sprintf(page + len, "DSDT length : %s\n", buf);
@@ -465,7 +484,7 @@ static int parse_arg(const char *buf, unsigned long count, int *val)
465} 484}
466 485
467static ssize_t store_status(const char *buf, size_t count, 486static ssize_t store_status(const char *buf, size_t count,
468 acpi_handle handle, int mask, int invert) 487 acpi_handle handle, int mask)
469{ 488{
470 int rv, value; 489 int rv, value;
471 int out = 0; 490 int out = 0;
@@ -474,7 +493,7 @@ static ssize_t store_status(const char *buf, size_t count,
474 if (rv > 0) 493 if (rv > 0)
475 out = value ? 1 : 0; 494 out = value ? 1 : 0;
476 495
477 write_status(handle, out, mask, invert); 496 write_status(handle, out, mask);
478 497
479 return rv; 498 return rv;
480} 499}
@@ -515,7 +534,7 @@ static ssize_t show_wlan(struct device *dev,
515static ssize_t store_wlan(struct device *dev, struct device_attribute *attr, 534static ssize_t store_wlan(struct device *dev, struct device_attribute *attr,
516 const char *buf, size_t count) 535 const char *buf, size_t count)
517{ 536{
518 return store_status(buf, count, wl_switch_handle, WL_ON, 0); 537 return store_status(buf, count, wl_switch_handle, WL_ON);
519} 538}
520 539
521/* 540/*
@@ -531,7 +550,7 @@ static ssize_t store_bluetooth(struct device *dev,
531 struct device_attribute *attr, const char *buf, 550 struct device_attribute *attr, const char *buf,
532 size_t count) 551 size_t count)
533{ 552{
534 return store_status(buf, count, bt_switch_handle, BT_ON, 0); 553 return store_status(buf, count, bt_switch_handle, BT_ON);
535} 554}
536 555
537/* 556/*
@@ -547,12 +566,15 @@ static void set_display(int value)
547 566
548static int read_display(void) 567static int read_display(void)
549{ 568{
550 int value = 0; 569 ulong value = 0;
570 acpi_status rv = AE_OK;
551 571
552 /* In most of the case, we know how to set the display, but sometime 572 /* In most of the case, we know how to set the display, but sometime
553 we can't read it */ 573 we can't read it */
554 if (display_get_handle) { 574 if (display_get_handle) {
555 if (!read_acpi_int(display_get_handle, NULL, &value, NULL)) 575 rv = acpi_evaluate_integer(display_get_handle, NULL,
576 NULL, &value);
577 if (ACPI_FAILURE(rv))
556 printk(ASUS_WARNING "Error reading display status\n"); 578 printk(ASUS_WARNING "Error reading display status\n");
557 } 579 }
558 580
@@ -656,10 +678,10 @@ static void asus_hotk_notify(acpi_handle handle, u32 event, void *data)
656 * switched 678 * switched
657 */ 679 */
658 if (event == ATKD_LCD_ON) { 680 if (event == ATKD_LCD_ON) {
659 write_status(NULL, 1, LCD_ON, 0); 681 write_status(NULL, 1, LCD_ON);
660 lcd_blank(FB_BLANK_UNBLANK); 682 lcd_blank(FB_BLANK_UNBLANK);
661 } else if (event == ATKD_LCD_OFF) { 683 } else if (event == ATKD_LCD_OFF) {
662 write_status(NULL, 0, LCD_ON, 0); 684 write_status(NULL, 0, LCD_ON);
663 lcd_blank(FB_BLANK_POWERDOWN); 685 lcd_blank(FB_BLANK_POWERDOWN);
664 } 686 }
665 687
@@ -771,7 +793,7 @@ static int asus_hotk_get_info(void)
771{ 793{
772 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; 794 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
773 union acpi_object *model = NULL; 795 union acpi_object *model = NULL;
774 int bsts_result, hwrs_result; 796 ulong bsts_result, hwrs_result;
775 char *string = NULL; 797 char *string = NULL;
776 acpi_status status; 798 acpi_status status;
777 799
@@ -794,11 +816,16 @@ static int asus_hotk_get_info(void)
794 } 816 }
795 817
796 /* This needs to be called for some laptops to init properly */ 818 /* This needs to be called for some laptops to init properly */
797 if (!read_acpi_int(hotk->handle, "BSTS", &bsts_result, NULL)) 819 status =
820 acpi_evaluate_integer(hotk->handle, "BSTS", NULL, &bsts_result);
821 if (ACPI_FAILURE(status))
798 printk(ASUS_WARNING "Error calling BSTS\n"); 822 printk(ASUS_WARNING "Error calling BSTS\n");
799 else if (bsts_result) 823 else if (bsts_result)
800 printk(ASUS_NOTICE "BSTS called, 0x%02x returned\n", 824 printk(ASUS_NOTICE "BSTS called, 0x%02x returned\n",
801 bsts_result); 825 (uint) bsts_result);
826
827 /* This too ... */
828 write_acpi_int(hotk->handle, "CWAP", wapf, NULL);
802 829
803 /* 830 /*
804 * Try to match the object returned by INIT to the specific model. 831 * Try to match the object returned by INIT to the specific model.
@@ -831,6 +858,7 @@ static int asus_hotk_get_info(void)
831 ASUS_HANDLE_INIT(tled_set); 858 ASUS_HANDLE_INIT(tled_set);
832 ASUS_HANDLE_INIT(rled_set); 859 ASUS_HANDLE_INIT(rled_set);
833 ASUS_HANDLE_INIT(pled_set); 860 ASUS_HANDLE_INIT(pled_set);
861 ASUS_HANDLE_INIT(gled_set);
834 862
835 ASUS_HANDLE_INIT(ledd_set); 863 ASUS_HANDLE_INIT(ledd_set);
836 864
@@ -840,7 +868,9 @@ static int asus_hotk_get_info(void)
840 * The significance of others is yet to be found. 868 * The significance of others is yet to be found.
841 * If we don't find the method, we assume the device are present. 869 * If we don't find the method, we assume the device are present.
842 */ 870 */
843 if (!read_acpi_int(hotk->handle, "HRWS", &hwrs_result, NULL)) 871 status =
872 acpi_evaluate_integer(hotk->handle, "HRWS", NULL, &hwrs_result);
873 if (ACPI_FAILURE(status))
844 hwrs_result = WL_HWRS | BT_HWRS; 874 hwrs_result = WL_HWRS | BT_HWRS;
845 875
846 if (hwrs_result & WL_HWRS) 876 if (hwrs_result & WL_HWRS)
@@ -928,11 +958,15 @@ static int asus_hotk_add(struct acpi_device *device)
928 asus_hotk_found = 1; 958 asus_hotk_found = 1;
929 959
930 /* WLED and BLED are on by default */ 960 /* WLED and BLED are on by default */
931 write_status(bt_switch_handle, 1, BT_ON, 0); 961 write_status(bt_switch_handle, 1, BT_ON);
932 write_status(wl_switch_handle, 1, WL_ON, 0); 962 write_status(wl_switch_handle, 1, WL_ON);
963
964 /* If the h/w switch is off, we need to check the real status */
965 write_status(NULL, read_status(BT_ON), BT_ON);
966 write_status(NULL, read_status(WL_ON), WL_ON);
933 967
934 /* LCD Backlight is on by default */ 968 /* LCD Backlight is on by default */
935 write_status(NULL, 1, LCD_ON, 0); 969 write_status(NULL, 1, LCD_ON);
936 970
937 /* LED display is off by default */ 971 /* LED display is off by default */
938 hotk->ledd_status = 0xFFF; 972 hotk->ledd_status = 0xFFF;
@@ -991,6 +1025,7 @@ static void asus_led_exit(void)
991 ASUS_LED_UNREGISTER(tled); 1025 ASUS_LED_UNREGISTER(tled);
992 ASUS_LED_UNREGISTER(pled); 1026 ASUS_LED_UNREGISTER(pled);
993 ASUS_LED_UNREGISTER(rled); 1027 ASUS_LED_UNREGISTER(rled);
1028 ASUS_LED_UNREGISTER(gled);
994 1029
995 destroy_workqueue(led_workqueue); 1030 destroy_workqueue(led_workqueue);
996} 1031}
@@ -1062,6 +1097,10 @@ static int asus_led_init(struct device *dev)
1062 if (rv) 1097 if (rv)
1063 return rv; 1098 return rv;
1064 1099
1100 rv = ASUS_LED_REGISTER(gled, dev);
1101 if (rv)
1102 return rv;
1103
1065 led_workqueue = create_singlethread_workqueue("led_workqueue"); 1104 led_workqueue = create_singlethread_workqueue("led_workqueue");
1066 if (!led_workqueue) 1105 if (!led_workqueue)
1067 return -ENOMEM; 1106 return -ENOMEM;
diff --git a/drivers/misc/sony-laptop.c b/drivers/misc/sony-laptop.c
index ac708bc2f9f3..c15c1f61bd1b 100644
--- a/drivers/misc/sony-laptop.c
+++ b/drivers/misc/sony-laptop.c
@@ -1,5 +1,5 @@
1/* 1/*
2 * ACPI Sony Notebook Control Driver (SNC) 2 * ACPI Sony Notebook Control Driver (SNC and SPIC)
3 * 3 *
4 * Copyright (C) 2004-2005 Stelian Pop <stelian@popies.net> 4 * Copyright (C) 2004-2005 Stelian Pop <stelian@popies.net>
5 * Copyright (C) 2007 Mattia Dongili <malattia@linux.it> 5 * Copyright (C) 2007 Mattia Dongili <malattia@linux.it>
@@ -7,6 +7,25 @@
7 * Parts of this driver inspired from asus_acpi.c and ibm_acpi.c 7 * Parts of this driver inspired from asus_acpi.c and ibm_acpi.c
8 * which are copyrighted by their respective authors. 8 * which are copyrighted by their respective authors.
9 * 9 *
10 * The SNY6001 driver part is based on the sonypi driver which includes
11 * material from:
12 *
13 * Copyright (C) 2001-2005 Stelian Pop <stelian@popies.net>
14 *
15 * Copyright (C) 2005 Narayanan R S <nars@kadamba.org>
16 *
17 * Copyright (C) 2001-2002 Alcôve <www.alcove.com>
18 *
19 * Copyright (C) 2001 Michael Ashley <m.ashley@unsw.edu.au>
20 *
21 * Copyright (C) 2001 Junichi Morita <jun1m@mars.dti.ne.jp>
22 *
23 * Copyright (C) 2000 Takaya Kinjo <t-kinjo@tc4.so-net.ne.jp>
24 *
25 * Copyright (C) 2000 Andrew Tridgell <tridge@valinux.com>
26 *
27 * Earlier work by Werner Almesberger, Paul `Rusty' Russell and Paul Mackerras.
28 *
10 * This program is free software; you can redistribute it and/or modify 29 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by 30 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or 31 * the Free Software Foundation; either version 2 of the License, or
@@ -31,40 +50,404 @@
31#include <linux/backlight.h> 50#include <linux/backlight.h>
32#include <linux/platform_device.h> 51#include <linux/platform_device.h>
33#include <linux/err.h> 52#include <linux/err.h>
53#include <linux/dmi.h>
54#include <linux/pci.h>
55#include <linux/interrupt.h>
56#include <linux/delay.h>
57#include <linux/input.h>
58#include <linux/kfifo.h>
59#include <linux/workqueue.h>
60#include <linux/acpi.h>
34#include <acpi/acpi_drivers.h> 61#include <acpi/acpi_drivers.h>
35#include <acpi/acpi_bus.h> 62#include <acpi/acpi_bus.h>
36#include <asm/uaccess.h> 63#include <asm/uaccess.h>
64#include <linux/sonypi.h>
65#include <linux/sony-laptop.h>
66#ifdef CONFIG_SONY_LAPTOP_OLD
67#include <linux/poll.h>
68#include <linux/miscdevice.h>
69#endif
37 70
38#define ACPI_SNC_CLASS "sony" 71#define DRV_PFX "sony-laptop: "
39#define ACPI_SNC_HID "SNY5001" 72#define dprintk(msg...) do { \
40#define ACPI_SNC_DRIVER_NAME "ACPI Sony Notebook Control Driver v0.4" 73 if (debug) printk(KERN_WARNING DRV_PFX msg); \
74} while (0)
41 75
42/* the device uses 1-based values, while the backlight subsystem uses 76#define SONY_LAPTOP_DRIVER_VERSION "0.5"
43 0-based values */ 77
44#define SONY_MAX_BRIGHTNESS 8 78#define SONY_NC_CLASS "sony-nc"
79#define SONY_NC_HID "SNY5001"
80#define SONY_NC_DRIVER_NAME "Sony Notebook Control Driver"
45 81
46#define LOG_PFX KERN_WARNING "sony-laptop: " 82#define SONY_PIC_CLASS "sony-pic"
83#define SONY_PIC_HID "SNY6001"
84#define SONY_PIC_DRIVER_NAME "Sony Programmable IO Control Driver"
47 85
48MODULE_AUTHOR("Stelian Pop, Mattia Dongili"); 86MODULE_AUTHOR("Stelian Pop, Mattia Dongili");
49MODULE_DESCRIPTION(ACPI_SNC_DRIVER_NAME); 87MODULE_DESCRIPTION("Sony laptop extras driver (SPIC and SNC ACPI device)");
50MODULE_LICENSE("GPL"); 88MODULE_LICENSE("GPL");
89MODULE_VERSION(SONY_LAPTOP_DRIVER_VERSION);
51 90
52static int debug; 91static int debug;
53module_param(debug, int, 0); 92module_param(debug, int, 0);
54MODULE_PARM_DESC(debug, "set this to 1 (and RTFM) if you want to help " 93MODULE_PARM_DESC(debug, "set this to 1 (and RTFM) if you want to help "
55 "the development of this driver"); 94 "the development of this driver");
56 95
57static ssize_t sony_acpi_show(struct device *, struct device_attribute *, 96static int no_spic; /* = 0 */
97module_param(no_spic, int, 0444);
98MODULE_PARM_DESC(no_spic,
99 "set this if you don't want to enable the SPIC device");
100
101static int compat; /* = 0 */
102module_param(compat, int, 0444);
103MODULE_PARM_DESC(compat,
104 "set this if you want to enable backward compatibility mode");
105
106static unsigned long mask = 0xffffffff;
107module_param(mask, ulong, 0644);
108MODULE_PARM_DESC(mask,
109 "set this to the mask of event you want to enable (see doc)");
110
111static int camera; /* = 0 */
112module_param(camera, int, 0444);
113MODULE_PARM_DESC(camera,
114 "set this to 1 to enable Motion Eye camera controls "
115 "(only use it if you have a C1VE or C1VN model)");
116
117#ifdef CONFIG_SONY_LAPTOP_OLD
118static int minor = -1;
119module_param(minor, int, 0);
120MODULE_PARM_DESC(minor,
121 "minor number of the misc device for the SPIC compatibility code, "
122 "default is -1 (automatic)");
123#endif
124
125/*********** Input Devices ***********/
126
127#define SONY_LAPTOP_BUF_SIZE 128
128struct sony_laptop_input_s {
129 atomic_t users;
130 struct input_dev *jog_dev;
131 struct input_dev *key_dev;
132 struct kfifo *fifo;
133 spinlock_t fifo_lock;
134 struct workqueue_struct *wq;
135};
136static struct sony_laptop_input_s sony_laptop_input = {
137 .users = ATOMIC_INIT(0),
138};
139
140struct sony_laptop_keypress {
141 struct input_dev *dev;
142 int key;
143};
144
145/* Correspondance table between sonypi events and input layer events */
146static struct {
147 int sonypiev;
148 int inputev;
149} sony_laptop_inputkeys[] = {
150 { SONYPI_EVENT_CAPTURE_PRESSED, KEY_CAMERA },
151 { SONYPI_EVENT_FNKEY_ONLY, KEY_FN },
152 { SONYPI_EVENT_FNKEY_ESC, KEY_FN_ESC },
153 { SONYPI_EVENT_FNKEY_F1, KEY_FN_F1 },
154 { SONYPI_EVENT_FNKEY_F2, KEY_FN_F2 },
155 { SONYPI_EVENT_FNKEY_F3, KEY_FN_F3 },
156 { SONYPI_EVENT_FNKEY_F4, KEY_FN_F4 },
157 { SONYPI_EVENT_FNKEY_F5, KEY_FN_F5 },
158 { SONYPI_EVENT_FNKEY_F6, KEY_FN_F6 },
159 { SONYPI_EVENT_FNKEY_F7, KEY_FN_F7 },
160 { SONYPI_EVENT_FNKEY_F8, KEY_FN_F8 },
161 { SONYPI_EVENT_FNKEY_F9, KEY_FN_F9 },
162 { SONYPI_EVENT_FNKEY_F10, KEY_FN_F10 },
163 { SONYPI_EVENT_FNKEY_F11, KEY_FN_F11 },
164 { SONYPI_EVENT_FNKEY_F12, KEY_FN_F12 },
165 { SONYPI_EVENT_FNKEY_1, KEY_FN_1 },
166 { SONYPI_EVENT_FNKEY_2, KEY_FN_2 },
167 { SONYPI_EVENT_FNKEY_D, KEY_FN_D },
168 { SONYPI_EVENT_FNKEY_E, KEY_FN_E },
169 { SONYPI_EVENT_FNKEY_F, KEY_FN_F },
170 { SONYPI_EVENT_FNKEY_S, KEY_FN_S },
171 { SONYPI_EVENT_FNKEY_B, KEY_FN_B },
172 { SONYPI_EVENT_BLUETOOTH_PRESSED, KEY_BLUE },
173 { SONYPI_EVENT_BLUETOOTH_ON, KEY_BLUE },
174 { SONYPI_EVENT_PKEY_P1, KEY_PROG1 },
175 { SONYPI_EVENT_PKEY_P2, KEY_PROG2 },
176 { SONYPI_EVENT_PKEY_P3, KEY_PROG3 },
177 { SONYPI_EVENT_BACK_PRESSED, KEY_BACK },
178 { SONYPI_EVENT_HELP_PRESSED, KEY_HELP },
179 { SONYPI_EVENT_ZOOM_PRESSED, KEY_ZOOM },
180 { SONYPI_EVENT_THUMBPHRASE_PRESSED, BTN_THUMB },
181 { 0, 0 },
182};
183
184/* release buttons after a short delay if pressed */
185static void do_sony_laptop_release_key(struct work_struct *work)
186{
187 struct sony_laptop_keypress kp;
188
189 while (kfifo_get(sony_laptop_input.fifo, (unsigned char *)&kp,
190 sizeof(kp)) == sizeof(kp)) {
191 msleep(10);
192 input_report_key(kp.dev, kp.key, 0);
193 input_sync(kp.dev);
194 }
195}
196static DECLARE_WORK(sony_laptop_release_key_work,
197 do_sony_laptop_release_key);
198
199/* forward event to the input subsytem */
200static void sony_laptop_report_input_event(u8 event)
201{
202 struct input_dev *jog_dev = sony_laptop_input.jog_dev;
203 struct input_dev *key_dev = sony_laptop_input.key_dev;
204 struct sony_laptop_keypress kp = { NULL };
205 int i;
206
207 if (event == SONYPI_EVENT_FNKEY_RELEASED) {
208 /* Nothing, not all VAIOs generate this event */
209 return;
210 }
211
212 /* report events */
213 switch (event) {
214 /* jog_dev events */
215 case SONYPI_EVENT_JOGDIAL_UP:
216 case SONYPI_EVENT_JOGDIAL_UP_PRESSED:
217 input_report_rel(jog_dev, REL_WHEEL, 1);
218 input_sync(jog_dev);
219 return;
220
221 case SONYPI_EVENT_JOGDIAL_DOWN:
222 case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED:
223 input_report_rel(jog_dev, REL_WHEEL, -1);
224 input_sync(jog_dev);
225 return;
226
227 /* key_dev events */
228 case SONYPI_EVENT_JOGDIAL_PRESSED:
229 kp.key = BTN_MIDDLE;
230 kp.dev = jog_dev;
231 break;
232
233 default:
234 for (i = 0; sony_laptop_inputkeys[i].sonypiev; i++)
235 if (event == sony_laptop_inputkeys[i].sonypiev) {
236 kp.dev = key_dev;
237 kp.key = sony_laptop_inputkeys[i].inputev;
238 break;
239 }
240 break;
241 }
242
243 if (kp.dev) {
244 input_report_key(kp.dev, kp.key, 1);
245 input_sync(kp.dev);
246 kfifo_put(sony_laptop_input.fifo,
247 (unsigned char *)&kp, sizeof(kp));
248
249 if (!work_pending(&sony_laptop_release_key_work))
250 queue_work(sony_laptop_input.wq,
251 &sony_laptop_release_key_work);
252 } else
253 dprintk("unknown input event %.2x\n", event);
254}
255
256static int sony_laptop_setup_input(void)
257{
258 struct input_dev *jog_dev;
259 struct input_dev *key_dev;
260 int i;
261 int error;
262
263 /* don't run again if already initialized */
264 if (atomic_add_return(1, &sony_laptop_input.users) > 1)
265 return 0;
266
267 /* kfifo */
268 spin_lock_init(&sony_laptop_input.fifo_lock);
269 sony_laptop_input.fifo =
270 kfifo_alloc(SONY_LAPTOP_BUF_SIZE, GFP_KERNEL,
271 &sony_laptop_input.fifo_lock);
272 if (IS_ERR(sony_laptop_input.fifo)) {
273 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
274 error = PTR_ERR(sony_laptop_input.fifo);
275 goto err_dec_users;
276 }
277
278 /* init workqueue */
279 sony_laptop_input.wq = create_singlethread_workqueue("sony-laptop");
280 if (!sony_laptop_input.wq) {
281 printk(KERN_ERR DRV_PFX
282 "Unabe to create workqueue.\n");
283 error = -ENXIO;
284 goto err_free_kfifo;
285 }
286
287 /* input keys */
288 key_dev = input_allocate_device();
289 if (!key_dev) {
290 error = -ENOMEM;
291 goto err_destroy_wq;
292 }
293
294 key_dev->name = "Sony Vaio Keys";
295 key_dev->id.bustype = BUS_ISA;
296 key_dev->id.vendor = PCI_VENDOR_ID_SONY;
297
298 /* Initialize the Input Drivers: special keys */
299 key_dev->evbit[0] = BIT(EV_KEY);
300 for (i = 0; sony_laptop_inputkeys[i].sonypiev; i++)
301 if (sony_laptop_inputkeys[i].inputev)
302 set_bit(sony_laptop_inputkeys[i].inputev,
303 key_dev->keybit);
304
305 error = input_register_device(key_dev);
306 if (error)
307 goto err_free_keydev;
308
309 sony_laptop_input.key_dev = key_dev;
310
311 /* jogdial */
312 jog_dev = input_allocate_device();
313 if (!jog_dev) {
314 error = -ENOMEM;
315 goto err_unregister_keydev;
316 }
317
318 jog_dev->name = "Sony Vaio Jogdial";
319 jog_dev->id.bustype = BUS_ISA;
320 jog_dev->id.vendor = PCI_VENDOR_ID_SONY;
321
322 jog_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REL);
323 jog_dev->keybit[LONG(BTN_MOUSE)] = BIT(BTN_MIDDLE);
324 jog_dev->relbit[0] = BIT(REL_WHEEL);
325
326 error = input_register_device(jog_dev);
327 if (error)
328 goto err_free_jogdev;
329
330 sony_laptop_input.jog_dev = jog_dev;
331
332 return 0;
333
334err_free_jogdev:
335 input_free_device(jog_dev);
336
337err_unregister_keydev:
338 input_unregister_device(key_dev);
339 /* to avoid kref underflow below at input_free_device */
340 key_dev = NULL;
341
342err_free_keydev:
343 input_free_device(key_dev);
344
345err_destroy_wq:
346 destroy_workqueue(sony_laptop_input.wq);
347
348err_free_kfifo:
349 kfifo_free(sony_laptop_input.fifo);
350
351err_dec_users:
352 atomic_dec(&sony_laptop_input.users);
353 return error;
354}
355
356static void sony_laptop_remove_input(void)
357{
358 /* cleanup only after the last user has gone */
359 if (!atomic_dec_and_test(&sony_laptop_input.users))
360 return;
361
362 /* flush workqueue first */
363 flush_workqueue(sony_laptop_input.wq);
364
365 /* destroy input devs */
366 input_unregister_device(sony_laptop_input.key_dev);
367 sony_laptop_input.key_dev = NULL;
368
369 if (sony_laptop_input.jog_dev) {
370 input_unregister_device(sony_laptop_input.jog_dev);
371 sony_laptop_input.jog_dev = NULL;
372 }
373
374 destroy_workqueue(sony_laptop_input.wq);
375 kfifo_free(sony_laptop_input.fifo);
376}
377
378/*********** Platform Device ***********/
379
380static atomic_t sony_pf_users = ATOMIC_INIT(0);
381static struct platform_driver sony_pf_driver = {
382 .driver = {
383 .name = "sony-laptop",
384 .owner = THIS_MODULE,
385 }
386};
387static struct platform_device *sony_pf_device;
388
389static int sony_pf_add(void)
390{
391 int ret = 0;
392
393 /* don't run again if already initialized */
394 if (atomic_add_return(1, &sony_pf_users) > 1)
395 return 0;
396
397 ret = platform_driver_register(&sony_pf_driver);
398 if (ret)
399 goto out;
400
401 sony_pf_device = platform_device_alloc("sony-laptop", -1);
402 if (!sony_pf_device) {
403 ret = -ENOMEM;
404 goto out_platform_registered;
405 }
406
407 ret = platform_device_add(sony_pf_device);
408 if (ret)
409 goto out_platform_alloced;
410
411 return 0;
412
413 out_platform_alloced:
414 platform_device_put(sony_pf_device);
415 sony_pf_device = NULL;
416 out_platform_registered:
417 platform_driver_unregister(&sony_pf_driver);
418 out:
419 atomic_dec(&sony_pf_users);
420 return ret;
421}
422
423static void sony_pf_remove(void)
424{
425 /* deregister only after the last user has gone */
426 if (!atomic_dec_and_test(&sony_pf_users))
427 return;
428
429 platform_device_del(sony_pf_device);
430 platform_device_put(sony_pf_device);
431 platform_driver_unregister(&sony_pf_driver);
432}
433
434/*********** SNC (SNY5001) Device ***********/
435
436/* the device uses 1-based values, while the backlight subsystem uses
437 0-based values */
438#define SONY_MAX_BRIGHTNESS 8
439
440#define SNC_VALIDATE_IN 0
441#define SNC_VALIDATE_OUT 1
442
443static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *,
58 char *); 444 char *);
59static ssize_t sony_acpi_store(struct device *, struct device_attribute *, 445static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *,
60 const char *, size_t); 446 const char *, size_t);
61static int boolean_validate(const int, const int); 447static int boolean_validate(const int, const int);
62static int brightness_default_validate(const int, const int); 448static int brightness_default_validate(const int, const int);
63 449
64#define SNC_VALIDATE_IN 0 450struct sony_nc_value {
65#define SNC_VALIDATE_OUT 1
66
67struct sony_acpi_value {
68 char *name; /* name of the entry */ 451 char *name; /* name of the entry */
69 char **acpiget; /* names of the ACPI get function */ 452 char **acpiget; /* names of the ACPI get function */
70 char **acpiset; /* names of the ACPI set function */ 453 char **acpiset; /* names of the ACPI set function */
@@ -75,65 +458,65 @@ struct sony_acpi_value {
75 struct device_attribute devattr; /* sysfs atribute */ 458 struct device_attribute devattr; /* sysfs atribute */
76}; 459};
77 460
78#define HANDLE_NAMES(_name, _values...) \ 461#define SNC_HANDLE_NAMES(_name, _values...) \
79 static char *snc_##_name[] = { _values, NULL } 462 static char *snc_##_name[] = { _values, NULL }
80 463
81#define SONY_ACPI_VALUE(_name, _getters, _setters, _validate, _debug) \ 464#define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \
82 { \ 465 { \
83 .name = __stringify(_name), \ 466 .name = __stringify(_name), \
84 .acpiget = _getters, \ 467 .acpiget = _getters, \
85 .acpiset = _setters, \ 468 .acpiset = _setters, \
86 .validate = _validate, \ 469 .validate = _validate, \
87 .debug = _debug, \ 470 .debug = _debug, \
88 .devattr = __ATTR(_name, 0, sony_acpi_show, sony_acpi_store), \ 471 .devattr = __ATTR(_name, 0, sony_nc_sysfs_show, sony_nc_sysfs_store), \
89 } 472 }
90 473
91#define SONY_ACPI_VALUE_NULL { .name = NULL } 474#define SNC_HANDLE_NULL { .name = NULL }
92 475
93HANDLE_NAMES(fnkey_get, "GHKE"); 476SNC_HANDLE_NAMES(fnkey_get, "GHKE");
94 477
95HANDLE_NAMES(brightness_def_get, "GPBR"); 478SNC_HANDLE_NAMES(brightness_def_get, "GPBR");
96HANDLE_NAMES(brightness_def_set, "SPBR"); 479SNC_HANDLE_NAMES(brightness_def_set, "SPBR");
97 480
98HANDLE_NAMES(cdpower_get, "GCDP"); 481SNC_HANDLE_NAMES(cdpower_get, "GCDP");
99HANDLE_NAMES(cdpower_set, "SCDP", "CDPW"); 482SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW");
100 483
101HANDLE_NAMES(audiopower_get, "GAZP"); 484SNC_HANDLE_NAMES(audiopower_get, "GAZP");
102HANDLE_NAMES(audiopower_set, "AZPW"); 485SNC_HANDLE_NAMES(audiopower_set, "AZPW");
103 486
104HANDLE_NAMES(lanpower_get, "GLNP"); 487SNC_HANDLE_NAMES(lanpower_get, "GLNP");
105HANDLE_NAMES(lanpower_set, "LNPW"); 488SNC_HANDLE_NAMES(lanpower_set, "LNPW");
106 489
107HANDLE_NAMES(PID_get, "GPID"); 490SNC_HANDLE_NAMES(PID_get, "GPID");
108 491
109HANDLE_NAMES(CTR_get, "GCTR"); 492SNC_HANDLE_NAMES(CTR_get, "GCTR");
110HANDLE_NAMES(CTR_set, "SCTR"); 493SNC_HANDLE_NAMES(CTR_set, "SCTR");
111 494
112HANDLE_NAMES(PCR_get, "GPCR"); 495SNC_HANDLE_NAMES(PCR_get, "GPCR");
113HANDLE_NAMES(PCR_set, "SPCR"); 496SNC_HANDLE_NAMES(PCR_set, "SPCR");
114 497
115HANDLE_NAMES(CMI_get, "GCMI"); 498SNC_HANDLE_NAMES(CMI_get, "GCMI");
116HANDLE_NAMES(CMI_set, "SCMI"); 499SNC_HANDLE_NAMES(CMI_set, "SCMI");
117 500
118static struct sony_acpi_value sony_acpi_values[] = { 501static struct sony_nc_value sony_nc_values[] = {
119 SONY_ACPI_VALUE(brightness_default, snc_brightness_def_get, 502 SNC_HANDLE(brightness_default, snc_brightness_def_get,
120 snc_brightness_def_set, brightness_default_validate, 0), 503 snc_brightness_def_set, brightness_default_validate, 0),
121 SONY_ACPI_VALUE(fnkey, snc_fnkey_get, NULL, NULL, 0), 504 SNC_HANDLE(fnkey, snc_fnkey_get, NULL, NULL, 0),
122 SONY_ACPI_VALUE(cdpower, snc_cdpower_get, snc_cdpower_set, boolean_validate, 0), 505 SNC_HANDLE(cdpower, snc_cdpower_get, snc_cdpower_set, boolean_validate, 0),
123 SONY_ACPI_VALUE(audiopower, snc_audiopower_get, snc_audiopower_set, 506 SNC_HANDLE(audiopower, snc_audiopower_get, snc_audiopower_set,
124 boolean_validate, 0), 507 boolean_validate, 0),
125 SONY_ACPI_VALUE(lanpower, snc_lanpower_get, snc_lanpower_set, 508 SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set,
126 boolean_validate, 1), 509 boolean_validate, 1),
127 /* unknown methods */ 510 /* unknown methods */
128 SONY_ACPI_VALUE(PID, snc_PID_get, NULL, NULL, 1), 511 SNC_HANDLE(PID, snc_PID_get, NULL, NULL, 1),
129 SONY_ACPI_VALUE(CTR, snc_CTR_get, snc_CTR_set, NULL, 1), 512 SNC_HANDLE(CTR, snc_CTR_get, snc_CTR_set, NULL, 1),
130 SONY_ACPI_VALUE(PCR, snc_PCR_get, snc_PCR_set, NULL, 1), 513 SNC_HANDLE(PCR, snc_PCR_get, snc_PCR_set, NULL, 1),
131 SONY_ACPI_VALUE(CMI, snc_CMI_get, snc_CMI_set, NULL, 1), 514 SNC_HANDLE(CMI, snc_CMI_get, snc_CMI_set, NULL, 1),
132 SONY_ACPI_VALUE_NULL 515 SNC_HANDLE_NULL
133}; 516};
134 517
135static acpi_handle sony_acpi_handle; 518static acpi_handle sony_nc_acpi_handle;
136static struct acpi_device *sony_acpi_acpi_device = NULL; 519static struct acpi_device *sony_nc_acpi_device = NULL;
137 520
138/* 521/*
139 * acpi_evaluate_object wrappers 522 * acpi_evaluate_object wrappers
@@ -153,7 +536,7 @@ static int acpi_callgetfunc(acpi_handle handle, char *name, int *result)
153 return 0; 536 return 0;
154 } 537 }
155 538
156 printk(LOG_PFX "acpi_callreadfunc failed\n"); 539 printk(KERN_WARNING DRV_PFX "acpi_callreadfunc failed\n");
157 540
158 return -1; 541 return -1;
159} 542}
@@ -179,7 +562,7 @@ static int acpi_callsetfunc(acpi_handle handle, char *name, int value,
179 if (status == AE_OK) { 562 if (status == AE_OK) {
180 if (result != NULL) { 563 if (result != NULL) {
181 if (out_obj.type != ACPI_TYPE_INTEGER) { 564 if (out_obj.type != ACPI_TYPE_INTEGER) {
182 printk(LOG_PFX "acpi_evaluate_object bad " 565 printk(KERN_WARNING DRV_PFX "acpi_evaluate_object bad "
183 "return type\n"); 566 "return type\n");
184 return -1; 567 return -1;
185 } 568 }
@@ -188,13 +571,13 @@ static int acpi_callsetfunc(acpi_handle handle, char *name, int value,
188 return 0; 571 return 0;
189 } 572 }
190 573
191 printk(LOG_PFX "acpi_evaluate_object failed\n"); 574 printk(KERN_WARNING DRV_PFX "acpi_evaluate_object failed\n");
192 575
193 return -1; 576 return -1;
194} 577}
195 578
196/* 579/*
197 * sony_acpi_values input/output validate functions 580 * sony_nc_values input/output validate functions
198 */ 581 */
199 582
200/* brightness_default_validate: 583/* brightness_default_validate:
@@ -229,19 +612,19 @@ static int boolean_validate(const int direction, const int value)
229} 612}
230 613
231/* 614/*
232 * Sysfs show/store common to all sony_acpi_values 615 * Sysfs show/store common to all sony_nc_values
233 */ 616 */
234static ssize_t sony_acpi_show(struct device *dev, struct device_attribute *attr, 617static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr,
235 char *buffer) 618 char *buffer)
236{ 619{
237 int value; 620 int value;
238 struct sony_acpi_value *item = 621 struct sony_nc_value *item =
239 container_of(attr, struct sony_acpi_value, devattr); 622 container_of(attr, struct sony_nc_value, devattr);
240 623
241 if (!*item->acpiget) 624 if (!*item->acpiget)
242 return -EIO; 625 return -EIO;
243 626
244 if (acpi_callgetfunc(sony_acpi_handle, *item->acpiget, &value) < 0) 627 if (acpi_callgetfunc(sony_nc_acpi_handle, *item->acpiget, &value) < 0)
245 return -EIO; 628 return -EIO;
246 629
247 if (item->validate) 630 if (item->validate)
@@ -250,13 +633,13 @@ static ssize_t sony_acpi_show(struct device *dev, struct device_attribute *attr,
250 return snprintf(buffer, PAGE_SIZE, "%d\n", value); 633 return snprintf(buffer, PAGE_SIZE, "%d\n", value);
251} 634}
252 635
253static ssize_t sony_acpi_store(struct device *dev, 636static ssize_t sony_nc_sysfs_store(struct device *dev,
254 struct device_attribute *attr, 637 struct device_attribute *attr,
255 const char *buffer, size_t count) 638 const char *buffer, size_t count)
256{ 639{
257 int value; 640 int value;
258 struct sony_acpi_value *item = 641 struct sony_nc_value *item =
259 container_of(attr, struct sony_acpi_value, devattr); 642 container_of(attr, struct sony_nc_value, devattr);
260 643
261 if (!item->acpiset) 644 if (!item->acpiset)
262 return -EIO; 645 return -EIO;
@@ -272,118 +655,20 @@ static ssize_t sony_acpi_store(struct device *dev,
272 if (value < 0) 655 if (value < 0)
273 return value; 656 return value;
274 657
275 if (acpi_callsetfunc(sony_acpi_handle, *item->acpiset, value, NULL) < 0) 658 if (acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset, value, NULL) < 0)
276 return -EIO; 659 return -EIO;
277 item->value = value; 660 item->value = value;
278 item->valid = 1; 661 item->valid = 1;
279 return count; 662 return count;
280} 663}
281 664
282/*
283 * Platform device
284 */
285static struct platform_driver sncpf_driver = {
286 .driver = {
287 .name = "sony-laptop",
288 .owner = THIS_MODULE,
289 }
290};
291static struct platform_device *sncpf_device;
292
293static int sony_snc_pf_add(void)
294{
295 acpi_handle handle;
296 struct sony_acpi_value *item;
297 int ret = 0;
298
299 ret = platform_driver_register(&sncpf_driver);
300 if (ret)
301 goto out;
302
303 sncpf_device = platform_device_alloc("sony-laptop", -1);
304 if (!sncpf_device) {
305 ret = -ENOMEM;
306 goto out_platform_registered;
307 }
308
309 ret = platform_device_add(sncpf_device);
310 if (ret)
311 goto out_platform_alloced;
312
313 for (item = sony_acpi_values; item->name; ++item) {
314
315 if (!debug && item->debug)
316 continue;
317
318 /* find the available acpiget as described in the DSDT */
319 for (; item->acpiget && *item->acpiget; ++item->acpiget) {
320 if (ACPI_SUCCESS(acpi_get_handle(sony_acpi_handle,
321 *item->acpiget,
322 &handle))) {
323 if (debug)
324 printk(LOG_PFX "Found %s getter: %s\n",
325 item->name, *item->acpiget);
326 item->devattr.attr.mode |= S_IRUGO;
327 break;
328 }
329 }
330
331 /* find the available acpiset as described in the DSDT */
332 for (; item->acpiset && *item->acpiset; ++item->acpiset) {
333 if (ACPI_SUCCESS(acpi_get_handle(sony_acpi_handle,
334 *item->acpiset,
335 &handle))) {
336 if (debug)
337 printk(LOG_PFX "Found %s setter: %s\n",
338 item->name, *item->acpiset);
339 item->devattr.attr.mode |= S_IWUSR;
340 break;
341 }
342 }
343
344 if (item->devattr.attr.mode != 0) {
345 ret =
346 device_create_file(&sncpf_device->dev,
347 &item->devattr);
348 if (ret)
349 goto out_sysfs;
350 }
351 }
352
353 return 0;
354
355 out_sysfs:
356 for (item = sony_acpi_values; item->name; ++item) {
357 device_remove_file(&sncpf_device->dev, &item->devattr);
358 }
359 platform_device_del(sncpf_device);
360 out_platform_alloced:
361 platform_device_put(sncpf_device);
362 out_platform_registered:
363 platform_driver_unregister(&sncpf_driver);
364 out:
365 return ret;
366}
367
368static void sony_snc_pf_remove(void)
369{
370 struct sony_acpi_value *item;
371
372 for (item = sony_acpi_values; item->name; ++item) {
373 device_remove_file(&sncpf_device->dev, &item->devattr);
374 }
375
376 platform_device_del(sncpf_device);
377 platform_device_put(sncpf_device);
378 platform_driver_unregister(&sncpf_driver);
379}
380 665
381/* 666/*
382 * Backlight device 667 * Backlight device
383 */ 668 */
384static int sony_backlight_update_status(struct backlight_device *bd) 669static int sony_backlight_update_status(struct backlight_device *bd)
385{ 670{
386 return acpi_callsetfunc(sony_acpi_handle, "SBRT", 671 return acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
387 bd->props.brightness + 1, NULL); 672 bd->props.brightness + 1, NULL);
388} 673}
389 674
@@ -391,7 +676,7 @@ static int sony_backlight_get_brightness(struct backlight_device *bd)
391{ 676{
392 int value; 677 int value;
393 678
394 if (acpi_callgetfunc(sony_acpi_handle, "GBRT", &value)) 679 if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value))
395 return 0; 680 return 0;
396 /* brightness levels are 1-based, while backlight ones are 0-based */ 681 /* brightness levels are 1-based, while backlight ones are 0-based */
397 return value - 1; 682 return value - 1;
@@ -408,9 +693,9 @@ static struct backlight_ops sony_backlight_ops = {
408 */ 693 */
409static void sony_acpi_notify(acpi_handle handle, u32 event, void *data) 694static void sony_acpi_notify(acpi_handle handle, u32 event, void *data)
410{ 695{
411 if (debug) 696 dprintk("sony_acpi_notify, event: %d\n", event);
412 printk(LOG_PFX "sony_acpi_notify, event: %d\n", event); 697 sony_laptop_report_input_event(event);
413 acpi_bus_generate_event(sony_acpi_acpi_device, 1, event); 698 acpi_bus_generate_event(sony_nc_acpi_device, 1, event);
414} 699}
415 700
416static acpi_status sony_walk_callback(acpi_handle handle, u32 level, 701static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
@@ -422,7 +707,7 @@ static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
422 node = (struct acpi_namespace_node *)handle; 707 node = (struct acpi_namespace_node *)handle;
423 operand = (union acpi_operand_object *)node->object; 708 operand = (union acpi_operand_object *)node->object;
424 709
425 printk(LOG_PFX "method: name: %4.4s, args %X\n", node->name.ascii, 710 printk(KERN_WARNING DRV_PFX "method: name: %4.4s, args %X\n", node->name.ascii,
426 (u32) operand->method.param_count); 711 (u32) operand->method.param_count);
427 712
428 return AE_OK; 713 return AE_OK;
@@ -431,16 +716,16 @@ static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
431/* 716/*
432 * ACPI device 717 * ACPI device
433 */ 718 */
434static int sony_acpi_resume(struct acpi_device *device) 719static int sony_nc_resume(struct acpi_device *device)
435{ 720{
436 struct sony_acpi_value *item; 721 struct sony_nc_value *item;
437 722
438 for (item = sony_acpi_values; item->name; item++) { 723 for (item = sony_nc_values; item->name; item++) {
439 int ret; 724 int ret;
440 725
441 if (!item->valid) 726 if (!item->valid)
442 continue; 727 continue;
443 ret = acpi_callsetfunc(sony_acpi_handle, *item->acpiset, 728 ret = acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset,
444 item->value, NULL); 729 item->value, NULL);
445 if (ret < 0) { 730 if (ret < 0) {
446 printk("%s: %d\n", __FUNCTION__, ret); 731 printk("%s: %d\n", __FUNCTION__, ret);
@@ -450,42 +735,55 @@ static int sony_acpi_resume(struct acpi_device *device)
450 return 0; 735 return 0;
451} 736}
452 737
453static int sony_acpi_add(struct acpi_device *device) 738static int sony_nc_add(struct acpi_device *device)
454{ 739{
455 acpi_status status; 740 acpi_status status;
456 int result = 0; 741 int result = 0;
457 acpi_handle handle; 742 acpi_handle handle;
743 struct sony_nc_value *item;
744
745 printk(KERN_INFO DRV_PFX "%s v%s.\n",
746 SONY_NC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
458 747
459 sony_acpi_acpi_device = device; 748 sony_nc_acpi_device = device;
749 strcpy(acpi_device_class(device), "sony/hotkey");
460 750
461 sony_acpi_handle = device->handle; 751 sony_nc_acpi_handle = device->handle;
462 752
463 if (debug) { 753 if (debug) {
464 status = acpi_walk_namespace(ACPI_TYPE_METHOD, sony_acpi_handle, 754 status = acpi_walk_namespace(ACPI_TYPE_METHOD, sony_nc_acpi_handle,
465 1, sony_walk_callback, NULL, NULL); 755 1, sony_walk_callback, NULL, NULL);
466 if (ACPI_FAILURE(status)) { 756 if (ACPI_FAILURE(status)) {
467 printk(LOG_PFX "unable to walk acpi resources\n"); 757 printk(KERN_WARNING DRV_PFX "unable to walk acpi resources\n");
468 result = -ENODEV; 758 result = -ENODEV;
469 goto outwalk; 759 goto outwalk;
470 } 760 }
471 } 761 }
472 762
473 status = acpi_install_notify_handler(sony_acpi_handle, 763 /* setup input devices and helper fifo */
764 result = sony_laptop_setup_input();
765 if (result) {
766 printk(KERN_ERR DRV_PFX
767 "Unabe to create input devices.\n");
768 goto outwalk;
769 }
770
771 status = acpi_install_notify_handler(sony_nc_acpi_handle,
474 ACPI_DEVICE_NOTIFY, 772 ACPI_DEVICE_NOTIFY,
475 sony_acpi_notify, NULL); 773 sony_acpi_notify, NULL);
476 if (ACPI_FAILURE(status)) { 774 if (ACPI_FAILURE(status)) {
477 printk(LOG_PFX "unable to install notify handler\n"); 775 printk(KERN_WARNING DRV_PFX "unable to install notify handler\n");
478 result = -ENODEV; 776 result = -ENODEV;
479 goto outwalk; 777 goto outinput;
480 } 778 }
481 779
482 if (ACPI_SUCCESS(acpi_get_handle(sony_acpi_handle, "GBRT", &handle))) { 780 if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT", &handle))) {
483 sony_backlight_device = backlight_device_register("sony", NULL, 781 sony_backlight_device = backlight_device_register("sony", NULL,
484 NULL, 782 NULL,
485 &sony_backlight_ops); 783 &sony_backlight_ops);
486 784
487 if (IS_ERR(sony_backlight_device)) { 785 if (IS_ERR(sony_backlight_device)) {
488 printk(LOG_PFX "unable to register backlight device\n"); 786 printk(KERN_WARNING DRV_PFX "unable to register backlight device\n");
489 sony_backlight_device = NULL; 787 sony_backlight_device = NULL;
490 } else { 788 } else {
491 sony_backlight_device->props.brightness = 789 sony_backlight_device->props.brightness =
@@ -497,68 +795,1497 @@ static int sony_acpi_add(struct acpi_device *device)
497 795
498 } 796 }
499 797
500 if (sony_snc_pf_add()) 798 result = sony_pf_add();
799 if (result)
501 goto outbacklight; 800 goto outbacklight;
502 801
503 printk(KERN_INFO ACPI_SNC_DRIVER_NAME " successfully installed\n"); 802 /* create sony_pf sysfs attributes related to the SNC device */
803 for (item = sony_nc_values; item->name; ++item) {
804
805 if (!debug && item->debug)
806 continue;
807
808 /* find the available acpiget as described in the DSDT */
809 for (; item->acpiget && *item->acpiget; ++item->acpiget) {
810 if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
811 *item->acpiget,
812 &handle))) {
813 dprintk("Found %s getter: %s\n",
814 item->name, *item->acpiget);
815 item->devattr.attr.mode |= S_IRUGO;
816 break;
817 }
818 }
819
820 /* find the available acpiset as described in the DSDT */
821 for (; item->acpiset && *item->acpiset; ++item->acpiset) {
822 if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
823 *item->acpiset,
824 &handle))) {
825 dprintk("Found %s setter: %s\n",
826 item->name, *item->acpiset);
827 item->devattr.attr.mode |= S_IWUSR;
828 break;
829 }
830 }
831
832 if (item->devattr.attr.mode != 0) {
833 result =
834 device_create_file(&sony_pf_device->dev,
835 &item->devattr);
836 if (result)
837 goto out_sysfs;
838 }
839 }
504 840
505 return 0; 841 return 0;
506 842
843 out_sysfs:
844 for (item = sony_nc_values; item->name; ++item) {
845 device_remove_file(&sony_pf_device->dev, &item->devattr);
846 }
847 sony_pf_remove();
848
507 outbacklight: 849 outbacklight:
508 if (sony_backlight_device) 850 if (sony_backlight_device)
509 backlight_device_unregister(sony_backlight_device); 851 backlight_device_unregister(sony_backlight_device);
510 852
511 status = acpi_remove_notify_handler(sony_acpi_handle, 853 status = acpi_remove_notify_handler(sony_nc_acpi_handle,
512 ACPI_DEVICE_NOTIFY, 854 ACPI_DEVICE_NOTIFY,
513 sony_acpi_notify); 855 sony_acpi_notify);
514 if (ACPI_FAILURE(status)) 856 if (ACPI_FAILURE(status))
515 printk(LOG_PFX "unable to remove notify handler\n"); 857 printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n");
858
859 outinput:
860 sony_laptop_remove_input();
861
516 outwalk: 862 outwalk:
517 return result; 863 return result;
518} 864}
519 865
520static int sony_acpi_remove(struct acpi_device *device, int type) 866static int sony_nc_remove(struct acpi_device *device, int type)
521{ 867{
522 acpi_status status; 868 acpi_status status;
869 struct sony_nc_value *item;
523 870
524 if (sony_backlight_device) 871 if (sony_backlight_device)
525 backlight_device_unregister(sony_backlight_device); 872 backlight_device_unregister(sony_backlight_device);
526 873
527 sony_acpi_acpi_device = NULL; 874 sony_nc_acpi_device = NULL;
528 875
529 status = acpi_remove_notify_handler(sony_acpi_handle, 876 status = acpi_remove_notify_handler(sony_nc_acpi_handle,
530 ACPI_DEVICE_NOTIFY, 877 ACPI_DEVICE_NOTIFY,
531 sony_acpi_notify); 878 sony_acpi_notify);
532 if (ACPI_FAILURE(status)) 879 if (ACPI_FAILURE(status))
533 printk(LOG_PFX "unable to remove notify handler\n"); 880 printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n");
534 881
535 sony_snc_pf_remove(); 882 for (item = sony_nc_values; item->name; ++item) {
883 device_remove_file(&sony_pf_device->dev, &item->devattr);
884 }
536 885
537 printk(KERN_INFO ACPI_SNC_DRIVER_NAME " successfully removed\n"); 886 sony_pf_remove();
887 sony_laptop_remove_input();
888 dprintk(SONY_NC_DRIVER_NAME " removed.\n");
538 889
539 return 0; 890 return 0;
540} 891}
541 892
542static struct acpi_driver sony_acpi_driver = { 893static struct acpi_driver sony_nc_driver = {
543 .name = ACPI_SNC_DRIVER_NAME, 894 .name = SONY_NC_DRIVER_NAME,
544 .class = ACPI_SNC_CLASS, 895 .class = SONY_NC_CLASS,
545 .ids = ACPI_SNC_HID, 896 .ids = SONY_NC_HID,
897 .owner = THIS_MODULE,
546 .ops = { 898 .ops = {
547 .add = sony_acpi_add, 899 .add = sony_nc_add,
548 .remove = sony_acpi_remove, 900 .remove = sony_nc_remove,
549 .resume = sony_acpi_resume, 901 .resume = sony_nc_resume,
550 }, 902 },
551}; 903};
552 904
553static int __init sony_acpi_init(void) 905/*********** SPIC (SNY6001) Device ***********/
906
907#define SONYPI_DEVICE_TYPE1 0x00000001
908#define SONYPI_DEVICE_TYPE2 0x00000002
909#define SONYPI_DEVICE_TYPE3 0x00000004
910
911#define SONY_PIC_EV_MASK 0xff
912
913struct sony_pic_ioport {
914 struct acpi_resource_io io;
915 struct list_head list;
916};
917
918struct sony_pic_irq {
919 struct acpi_resource_irq irq;
920 struct list_head list;
921};
922
923struct sony_pic_dev {
924 int model;
925 u8 camera_power;
926 u8 bluetooth_power;
927 u8 wwan_power;
928 struct acpi_device *acpi_dev;
929 struct sony_pic_irq *cur_irq;
930 struct sony_pic_ioport *cur_ioport;
931 struct list_head interrupts;
932 struct list_head ioports;
933 struct mutex lock;
934};
935
936static struct sony_pic_dev spic_dev = {
937 .interrupts = LIST_HEAD_INIT(spic_dev.interrupts),
938 .ioports = LIST_HEAD_INIT(spic_dev.ioports),
939};
940
941/* Event masks */
942#define SONYPI_JOGGER_MASK 0x00000001
943#define SONYPI_CAPTURE_MASK 0x00000002
944#define SONYPI_FNKEY_MASK 0x00000004
945#define SONYPI_BLUETOOTH_MASK 0x00000008
946#define SONYPI_PKEY_MASK 0x00000010
947#define SONYPI_BACK_MASK 0x00000020
948#define SONYPI_HELP_MASK 0x00000040
949#define SONYPI_LID_MASK 0x00000080
950#define SONYPI_ZOOM_MASK 0x00000100
951#define SONYPI_THUMBPHRASE_MASK 0x00000200
952#define SONYPI_MEYE_MASK 0x00000400
953#define SONYPI_MEMORYSTICK_MASK 0x00000800
954#define SONYPI_BATTERY_MASK 0x00001000
955#define SONYPI_WIRELESS_MASK 0x00002000
956
957struct sonypi_event {
958 u8 data;
959 u8 event;
960};
961
962/* The set of possible button release events */
963static struct sonypi_event sonypi_releaseev[] = {
964 { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
965 { 0, 0 }
966};
967
968/* The set of possible jogger events */
969static struct sonypi_event sonypi_joggerev[] = {
970 { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
971 { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
972 { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
973 { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
974 { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
975 { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
976 { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
977 { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
978 { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
979 { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
980 { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
981 { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
982 { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
983 { 0, 0 }
984};
985
986/* The set of possible capture button events */
987static struct sonypi_event sonypi_captureev[] = {
988 { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
989 { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
990 { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
991 { 0, 0 }
992};
993
994/* The set of possible fnkeys events */
995static struct sonypi_event sonypi_fnkeyev[] = {
996 { 0x10, SONYPI_EVENT_FNKEY_ESC },
997 { 0x11, SONYPI_EVENT_FNKEY_F1 },
998 { 0x12, SONYPI_EVENT_FNKEY_F2 },
999 { 0x13, SONYPI_EVENT_FNKEY_F3 },
1000 { 0x14, SONYPI_EVENT_FNKEY_F4 },
1001 { 0x15, SONYPI_EVENT_FNKEY_F5 },
1002 { 0x16, SONYPI_EVENT_FNKEY_F6 },
1003 { 0x17, SONYPI_EVENT_FNKEY_F7 },
1004 { 0x18, SONYPI_EVENT_FNKEY_F8 },
1005 { 0x19, SONYPI_EVENT_FNKEY_F9 },
1006 { 0x1a, SONYPI_EVENT_FNKEY_F10 },
1007 { 0x1b, SONYPI_EVENT_FNKEY_F11 },
1008 { 0x1c, SONYPI_EVENT_FNKEY_F12 },
1009 { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
1010 { 0x21, SONYPI_EVENT_FNKEY_1 },
1011 { 0x22, SONYPI_EVENT_FNKEY_2 },
1012 { 0x31, SONYPI_EVENT_FNKEY_D },
1013 { 0x32, SONYPI_EVENT_FNKEY_E },
1014 { 0x33, SONYPI_EVENT_FNKEY_F },
1015 { 0x34, SONYPI_EVENT_FNKEY_S },
1016 { 0x35, SONYPI_EVENT_FNKEY_B },
1017 { 0x36, SONYPI_EVENT_FNKEY_ONLY },
1018 { 0, 0 }
1019};
1020
1021/* The set of possible program key events */
1022static struct sonypi_event sonypi_pkeyev[] = {
1023 { 0x01, SONYPI_EVENT_PKEY_P1 },
1024 { 0x02, SONYPI_EVENT_PKEY_P2 },
1025 { 0x04, SONYPI_EVENT_PKEY_P3 },
1026 { 0x5c, SONYPI_EVENT_PKEY_P1 },
1027 { 0, 0 }
1028};
1029
1030/* The set of possible bluetooth events */
1031static struct sonypi_event sonypi_blueev[] = {
1032 { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
1033 { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
1034 { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
1035 { 0, 0 }
1036};
1037
1038/* The set of possible wireless events */
1039static struct sonypi_event sonypi_wlessev[] = {
1040 { 0x59, SONYPI_EVENT_WIRELESS_ON },
1041 { 0x5a, SONYPI_EVENT_WIRELESS_OFF },
1042 { 0, 0 }
1043};
1044
1045/* The set of possible back button events */
1046static struct sonypi_event sonypi_backev[] = {
1047 { 0x20, SONYPI_EVENT_BACK_PRESSED },
1048 { 0, 0 }
1049};
1050
1051/* The set of possible help button events */
1052static struct sonypi_event sonypi_helpev[] = {
1053 { 0x3b, SONYPI_EVENT_HELP_PRESSED },
1054 { 0, 0 }
1055};
1056
1057
1058/* The set of possible lid events */
1059static struct sonypi_event sonypi_lidev[] = {
1060 { 0x51, SONYPI_EVENT_LID_CLOSED },
1061 { 0x50, SONYPI_EVENT_LID_OPENED },
1062 { 0, 0 }
1063};
1064
1065/* The set of possible zoom events */
1066static struct sonypi_event sonypi_zoomev[] = {
1067 { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
1068 { 0, 0 }
1069};
1070
1071/* The set of possible thumbphrase events */
1072static struct sonypi_event sonypi_thumbphraseev[] = {
1073 { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
1074 { 0, 0 }
1075};
1076
1077/* The set of possible motioneye camera events */
1078static struct sonypi_event sonypi_meyeev[] = {
1079 { 0x00, SONYPI_EVENT_MEYE_FACE },
1080 { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
1081 { 0, 0 }
1082};
1083
1084/* The set of possible memorystick events */
1085static struct sonypi_event sonypi_memorystickev[] = {
1086 { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
1087 { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
1088 { 0, 0 }
1089};
1090
1091/* The set of possible battery events */
1092static struct sonypi_event sonypi_batteryev[] = {
1093 { 0x20, SONYPI_EVENT_BATTERY_INSERT },
1094 { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
1095 { 0, 0 }
1096};
1097
1098static struct sonypi_eventtypes {
1099 int model;
1100 u8 data;
1101 unsigned long mask;
1102 struct sonypi_event * events;
1103} sony_pic_eventtypes[] = {
1104 { SONYPI_DEVICE_TYPE1, 0, 0xffffffff, sonypi_releaseev },
1105 { SONYPI_DEVICE_TYPE1, 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
1106 { SONYPI_DEVICE_TYPE1, 0x30, SONYPI_LID_MASK, sonypi_lidev },
1107 { SONYPI_DEVICE_TYPE1, 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
1108 { SONYPI_DEVICE_TYPE1, 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
1109 { SONYPI_DEVICE_TYPE1, 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1110 { SONYPI_DEVICE_TYPE1, 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1111 { SONYPI_DEVICE_TYPE1, 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
1112 { SONYPI_DEVICE_TYPE1, 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1113 { SONYPI_DEVICE_TYPE1, 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
1114
1115 { SONYPI_DEVICE_TYPE2, 0, 0xffffffff, sonypi_releaseev },
1116 { SONYPI_DEVICE_TYPE2, 0x38, SONYPI_LID_MASK, sonypi_lidev },
1117 { SONYPI_DEVICE_TYPE2, 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
1118 { SONYPI_DEVICE_TYPE2, 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
1119 { SONYPI_DEVICE_TYPE2, 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1120 { SONYPI_DEVICE_TYPE2, 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1121 { SONYPI_DEVICE_TYPE2, 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
1122 { SONYPI_DEVICE_TYPE2, 0x11, SONYPI_BACK_MASK, sonypi_backev },
1123 { SONYPI_DEVICE_TYPE2, 0x21, SONYPI_HELP_MASK, sonypi_helpev },
1124 { SONYPI_DEVICE_TYPE2, 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
1125 { SONYPI_DEVICE_TYPE2, 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
1126 { SONYPI_DEVICE_TYPE2, 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1127 { SONYPI_DEVICE_TYPE2, 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1128 { SONYPI_DEVICE_TYPE2, 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1129
1130 { SONYPI_DEVICE_TYPE3, 0, 0xffffffff, sonypi_releaseev },
1131 { SONYPI_DEVICE_TYPE3, 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1132 { SONYPI_DEVICE_TYPE3, 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
1133 { SONYPI_DEVICE_TYPE3, 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1134 { SONYPI_DEVICE_TYPE3, 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1135 { SONYPI_DEVICE_TYPE3, 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1136 { 0 }
1137};
1138
1139static int sony_pic_detect_device_type(void)
1140{
1141 struct pci_dev *pcidev;
1142 int model = 0;
1143
1144 if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1145 PCI_DEVICE_ID_INTEL_82371AB_3, NULL)))
1146 model = SONYPI_DEVICE_TYPE1;
1147
1148 else if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1149 PCI_DEVICE_ID_INTEL_ICH6_1, NULL)))
1150 model = SONYPI_DEVICE_TYPE3;
1151
1152 else if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1153 PCI_DEVICE_ID_INTEL_ICH7_1, NULL)))
1154 model = SONYPI_DEVICE_TYPE3;
1155
1156 else
1157 model = SONYPI_DEVICE_TYPE2;
1158
1159 if (pcidev)
1160 pci_dev_put(pcidev);
1161
1162 printk(KERN_INFO DRV_PFX "detected Type%d model\n",
1163 model == SONYPI_DEVICE_TYPE1 ? 1 :
1164 model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
1165 return model;
1166}
1167
1168#define ITERATIONS_LONG 10000
1169#define ITERATIONS_SHORT 10
1170#define wait_on_command(command, iterations) { \
1171 unsigned int n = iterations; \
1172 while (--n && (command)) \
1173 udelay(1); \
1174 if (!n) \
1175 dprintk("command failed at %s : %s (line %d)\n", \
1176 __FILE__, __FUNCTION__, __LINE__); \
1177}
1178
1179static u8 sony_pic_call1(u8 dev)
1180{
1181 u8 v1, v2;
1182
1183 wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2,
1184 ITERATIONS_LONG);
1185 outb(dev, spic_dev.cur_ioport->io.minimum + 4);
1186 v1 = inb_p(spic_dev.cur_ioport->io.minimum + 4);
1187 v2 = inb_p(spic_dev.cur_ioport->io.minimum);
1188 dprintk("sony_pic_call1: 0x%.4x\n", (v2 << 8) | v1);
1189 return v2;
1190}
1191
1192static u8 sony_pic_call2(u8 dev, u8 fn)
1193{
1194 u8 v1;
1195
1196 wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2,
1197 ITERATIONS_LONG);
1198 outb(dev, spic_dev.cur_ioport->io.minimum + 4);
1199 wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2,
1200 ITERATIONS_LONG);
1201 outb(fn, spic_dev.cur_ioport->io.minimum);
1202 v1 = inb_p(spic_dev.cur_ioport->io.minimum);
1203 dprintk("sony_pic_call2: 0x%.4x\n", v1);
1204 return v1;
1205}
1206
1207static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
1208{
1209 u8 v1;
1210
1211 wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2, ITERATIONS_LONG);
1212 outb(dev, spic_dev.cur_ioport->io.minimum + 4);
1213 wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2, ITERATIONS_LONG);
1214 outb(fn, spic_dev.cur_ioport->io.minimum);
1215 wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2, ITERATIONS_LONG);
1216 outb(v, spic_dev.cur_ioport->io.minimum);
1217 v1 = inb_p(spic_dev.cur_ioport->io.minimum);
1218 dprintk("sony_pic_call3: 0x%.4x\n", v1);
1219 return v1;
1220}
1221
1222/* camera tests and poweron/poweroff */
1223#define SONYPI_CAMERA_PICTURE 5
1224#define SONYPI_CAMERA_CONTROL 0x10
1225
1226#define SONYPI_CAMERA_BRIGHTNESS 0
1227#define SONYPI_CAMERA_CONTRAST 1
1228#define SONYPI_CAMERA_HUE 2
1229#define SONYPI_CAMERA_COLOR 3
1230#define SONYPI_CAMERA_SHARPNESS 4
1231
1232#define SONYPI_CAMERA_EXPOSURE_MASK 0xC
1233#define SONYPI_CAMERA_WHITE_BALANCE_MASK 0x3
1234#define SONYPI_CAMERA_PICTURE_MODE_MASK 0x30
1235#define SONYPI_CAMERA_MUTE_MASK 0x40
1236
1237/* the rest don't need a loop until not 0xff */
1238#define SONYPI_CAMERA_AGC 6
1239#define SONYPI_CAMERA_AGC_MASK 0x30
1240#define SONYPI_CAMERA_SHUTTER_MASK 0x7
1241
1242#define SONYPI_CAMERA_SHUTDOWN_REQUEST 7
1243#define SONYPI_CAMERA_CONTROL 0x10
1244
1245#define SONYPI_CAMERA_STATUS 7
1246#define SONYPI_CAMERA_STATUS_READY 0x2
1247#define SONYPI_CAMERA_STATUS_POSITION 0x4
1248
1249#define SONYPI_DIRECTION_BACKWARDS 0x4
1250
1251#define SONYPI_CAMERA_REVISION 8
1252#define SONYPI_CAMERA_ROMVERSION 9
1253
1254static int __sony_pic_camera_ready(void)
1255{
1256 u8 v;
1257
1258 v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
1259 return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
1260}
1261
1262static int __sony_pic_camera_off(void)
1263{
1264 if (!camera) {
1265 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1266 return -ENODEV;
1267 }
1268
1269 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
1270 SONYPI_CAMERA_MUTE_MASK),
1271 ITERATIONS_SHORT);
1272
1273 if (spic_dev.camera_power) {
1274 sony_pic_call2(0x91, 0);
1275 spic_dev.camera_power = 0;
1276 }
1277 return 0;
1278}
1279
1280static int __sony_pic_camera_on(void)
554{ 1281{
555 return acpi_bus_register_driver(&sony_acpi_driver); 1282 int i, j, x;
1283
1284 if (!camera) {
1285 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1286 return -ENODEV;
1287 }
1288
1289 if (spic_dev.camera_power)
1290 return 0;
1291
1292 for (j = 5; j > 0; j--) {
1293
1294 for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
1295 msleep(10);
1296 sony_pic_call1(0x93);
1297
1298 for (i = 400; i > 0; i--) {
1299 if (__sony_pic_camera_ready())
1300 break;
1301 msleep(10);
1302 }
1303 if (i)
1304 break;
1305 }
1306
1307 if (j == 0) {
1308 printk(KERN_WARNING DRV_PFX "failed to power on camera\n");
1309 return -ENODEV;
1310 }
1311
1312 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
1313 0x5a),
1314 ITERATIONS_SHORT);
1315
1316 spic_dev.camera_power = 1;
1317 return 0;
1318}
1319
1320/* External camera command (exported to the motion eye v4l driver) */
1321int sony_pic_camera_command(int command, u8 value)
1322{
1323 if (!camera)
1324 return -EIO;
1325
1326 mutex_lock(&spic_dev.lock);
1327
1328 switch (command) {
1329 case SONY_PIC_COMMAND_SETCAMERA:
1330 if (value)
1331 __sony_pic_camera_on();
1332 else
1333 __sony_pic_camera_off();
1334 break;
1335 case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
1336 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
1337 ITERATIONS_SHORT);
1338 break;
1339 case SONY_PIC_COMMAND_SETCAMERACONTRAST:
1340 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
1341 ITERATIONS_SHORT);
1342 break;
1343 case SONY_PIC_COMMAND_SETCAMERAHUE:
1344 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
1345 ITERATIONS_SHORT);
1346 break;
1347 case SONY_PIC_COMMAND_SETCAMERACOLOR:
1348 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
1349 ITERATIONS_SHORT);
1350 break;
1351 case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
1352 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
1353 ITERATIONS_SHORT);
1354 break;
1355 case SONY_PIC_COMMAND_SETCAMERAPICTURE:
1356 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
1357 ITERATIONS_SHORT);
1358 break;
1359 case SONY_PIC_COMMAND_SETCAMERAAGC:
1360 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
1361 ITERATIONS_SHORT);
1362 break;
1363 default:
1364 printk(KERN_ERR DRV_PFX "sony_pic_camera_command invalid: %d\n",
1365 command);
1366 break;
1367 }
1368 mutex_unlock(&spic_dev.lock);
1369 return 0;
1370}
1371EXPORT_SYMBOL(sony_pic_camera_command);
1372
1373/* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
1374static void sony_pic_set_wwanpower(u8 state)
1375{
1376 state = !!state;
1377 mutex_lock(&spic_dev.lock);
1378 if (spic_dev.wwan_power == state) {
1379 mutex_unlock(&spic_dev.lock);
1380 return;
1381 }
1382 sony_pic_call2(0xB0, state);
1383 spic_dev.wwan_power = state;
1384 mutex_unlock(&spic_dev.lock);
1385}
1386
1387static ssize_t sony_pic_wwanpower_store(struct device *dev,
1388 struct device_attribute *attr,
1389 const char *buffer, size_t count)
1390{
1391 unsigned long value;
1392 if (count > 31)
1393 return -EINVAL;
1394
1395 value = simple_strtoul(buffer, NULL, 10);
1396 sony_pic_set_wwanpower(value);
1397
1398 return count;
1399}
1400
1401static ssize_t sony_pic_wwanpower_show(struct device *dev,
1402 struct device_attribute *attr, char *buffer)
1403{
1404 ssize_t count;
1405 mutex_lock(&spic_dev.lock);
1406 count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
1407 mutex_unlock(&spic_dev.lock);
1408 return count;
1409}
1410
1411/* bluetooth subsystem power state */
1412static void __sony_pic_set_bluetoothpower(u8 state)
1413{
1414 state = !!state;
1415 if (spic_dev.bluetooth_power == state)
1416 return;
1417 sony_pic_call2(0x96, state);
1418 sony_pic_call1(0x82);
1419 spic_dev.bluetooth_power = state;
1420}
1421
1422static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
1423 struct device_attribute *attr,
1424 const char *buffer, size_t count)
1425{
1426 unsigned long value;
1427 if (count > 31)
1428 return -EINVAL;
1429
1430 value = simple_strtoul(buffer, NULL, 10);
1431 mutex_lock(&spic_dev.lock);
1432 __sony_pic_set_bluetoothpower(value);
1433 mutex_unlock(&spic_dev.lock);
1434
1435 return count;
1436}
1437
1438static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
1439 struct device_attribute *attr, char *buffer)
1440{
1441 ssize_t count = 0;
1442 mutex_lock(&spic_dev.lock);
1443 count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
1444 mutex_unlock(&spic_dev.lock);
1445 return count;
1446}
1447
1448/* fan speed */
1449/* FAN0 information (reverse engineered from ACPI tables) */
1450#define SONY_PIC_FAN0_STATUS 0x93
1451static int sony_pic_set_fanspeed(unsigned long value)
1452{
1453 return ec_write(SONY_PIC_FAN0_STATUS, value);
1454}
1455
1456static int sony_pic_get_fanspeed(u8 *value)
1457{
1458 return ec_read(SONY_PIC_FAN0_STATUS, value);
1459}
1460
1461static ssize_t sony_pic_fanspeed_store(struct device *dev,
1462 struct device_attribute *attr,
1463 const char *buffer, size_t count)
1464{
1465 unsigned long value;
1466 if (count > 31)
1467 return -EINVAL;
1468
1469 value = simple_strtoul(buffer, NULL, 10);
1470 if (sony_pic_set_fanspeed(value))
1471 return -EIO;
1472
1473 return count;
1474}
1475
1476static ssize_t sony_pic_fanspeed_show(struct device *dev,
1477 struct device_attribute *attr, char *buffer)
1478{
1479 u8 value = 0;
1480 if (sony_pic_get_fanspeed(&value))
1481 return -EIO;
1482
1483 return snprintf(buffer, PAGE_SIZE, "%d\n", value);
1484}
1485
1486#define SPIC_ATTR(_name, _mode) \
1487struct device_attribute spic_attr_##_name = __ATTR(_name, \
1488 _mode, sony_pic_## _name ##_show, \
1489 sony_pic_## _name ##_store)
1490
1491static SPIC_ATTR(bluetoothpower, 0644);
1492static SPIC_ATTR(wwanpower, 0644);
1493static SPIC_ATTR(fanspeed, 0644);
1494
1495static struct attribute *spic_attributes[] = {
1496 &spic_attr_bluetoothpower.attr,
1497 &spic_attr_wwanpower.attr,
1498 &spic_attr_fanspeed.attr,
1499 NULL
1500};
1501
1502static struct attribute_group spic_attribute_group = {
1503 .attrs = spic_attributes
1504};
1505
1506/******** SONYPI compatibility **********/
1507#ifdef CONFIG_SONY_LAPTOP_OLD
1508
1509/* battery / brightness / temperature addresses */
1510#define SONYPI_BAT_FLAGS 0x81
1511#define SONYPI_LCD_LIGHT 0x96
1512#define SONYPI_BAT1_PCTRM 0xa0
1513#define SONYPI_BAT1_LEFT 0xa2
1514#define SONYPI_BAT1_MAXRT 0xa4
1515#define SONYPI_BAT2_PCTRM 0xa8
1516#define SONYPI_BAT2_LEFT 0xaa
1517#define SONYPI_BAT2_MAXRT 0xac
1518#define SONYPI_BAT1_MAXTK 0xb0
1519#define SONYPI_BAT1_FULL 0xb2
1520#define SONYPI_BAT2_MAXTK 0xb8
1521#define SONYPI_BAT2_FULL 0xba
1522#define SONYPI_TEMP_STATUS 0xC1
1523
1524struct sonypi_compat_s {
1525 struct fasync_struct *fifo_async;
1526 struct kfifo *fifo;
1527 spinlock_t fifo_lock;
1528 wait_queue_head_t fifo_proc_list;
1529 atomic_t open_count;
1530};
1531static struct sonypi_compat_s sonypi_compat = {
1532 .open_count = ATOMIC_INIT(0),
1533};
1534
1535static int sonypi_misc_fasync(int fd, struct file *filp, int on)
1536{
1537 int retval;
1538
1539 retval = fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
1540 if (retval < 0)
1541 return retval;
1542 return 0;
1543}
1544
1545static int sonypi_misc_release(struct inode *inode, struct file *file)
1546{
1547 sonypi_misc_fasync(-1, file, 0);
1548 atomic_dec(&sonypi_compat.open_count);
1549 return 0;
1550}
1551
1552static int sonypi_misc_open(struct inode *inode, struct file *file)
1553{
1554 /* Flush input queue on first open */
1555 if (atomic_inc_return(&sonypi_compat.open_count) == 1)
1556 kfifo_reset(sonypi_compat.fifo);
1557 return 0;
1558}
1559
1560static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
1561 size_t count, loff_t *pos)
1562{
1563 ssize_t ret;
1564 unsigned char c;
1565
1566 if ((kfifo_len(sonypi_compat.fifo) == 0) &&
1567 (file->f_flags & O_NONBLOCK))
1568 return -EAGAIN;
1569
1570 ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
1571 kfifo_len(sonypi_compat.fifo) != 0);
1572 if (ret)
1573 return ret;
1574
1575 while (ret < count &&
1576 (kfifo_get(sonypi_compat.fifo, &c, sizeof(c)) == sizeof(c))) {
1577 if (put_user(c, buf++))
1578 return -EFAULT;
1579 ret++;
1580 }
1581
1582 if (ret > 0) {
1583 struct inode *inode = file->f_path.dentry->d_inode;
1584 inode->i_atime = current_fs_time(inode->i_sb);
1585 }
1586
1587 return ret;
1588}
1589
1590static unsigned int sonypi_misc_poll(struct file *file, poll_table *wait)
1591{
1592 poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
1593 if (kfifo_len(sonypi_compat.fifo))
1594 return POLLIN | POLLRDNORM;
1595 return 0;
1596}
1597
1598static int ec_read16(u8 addr, u16 *value)
1599{
1600 u8 val_lb, val_hb;
1601 if (ec_read(addr, &val_lb))
1602 return -1;
1603 if (ec_read(addr + 1, &val_hb))
1604 return -1;
1605 *value = val_lb | (val_hb << 8);
1606 return 0;
1607}
1608
1609static int sonypi_misc_ioctl(struct inode *ip, struct file *fp,
1610 unsigned int cmd, unsigned long arg)
1611{
1612 int ret = 0;
1613 void __user *argp = (void __user *)arg;
1614 u8 val8;
1615 u16 val16;
1616 int value;
1617
1618 mutex_lock(&spic_dev.lock);
1619 switch (cmd) {
1620 case SONYPI_IOCGBRT:
1621 if (sony_backlight_device == NULL) {
1622 ret = -EIO;
1623 break;
1624 }
1625 if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value)) {
1626 ret = -EIO;
1627 break;
1628 }
1629 val8 = ((value & 0xff) - 1) << 5;
1630 if (copy_to_user(argp, &val8, sizeof(val8)))
1631 ret = -EFAULT;
1632 break;
1633 case SONYPI_IOCSBRT:
1634 if (sony_backlight_device == NULL) {
1635 ret = -EIO;
1636 break;
1637 }
1638 if (copy_from_user(&val8, argp, sizeof(val8))) {
1639 ret = -EFAULT;
1640 break;
1641 }
1642 if (acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
1643 (val8 >> 5) + 1, NULL)) {
1644 ret = -EIO;
1645 break;
1646 }
1647 /* sync the backlight device status */
1648 sony_backlight_device->props.brightness =
1649 sony_backlight_get_brightness(sony_backlight_device);
1650 break;
1651 case SONYPI_IOCGBAT1CAP:
1652 if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
1653 ret = -EIO;
1654 break;
1655 }
1656 if (copy_to_user(argp, &val16, sizeof(val16)))
1657 ret = -EFAULT;
1658 break;
1659 case SONYPI_IOCGBAT1REM:
1660 if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
1661 ret = -EIO;
1662 break;
1663 }
1664 if (copy_to_user(argp, &val16, sizeof(val16)))
1665 ret = -EFAULT;
1666 break;
1667 case SONYPI_IOCGBAT2CAP:
1668 if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
1669 ret = -EIO;
1670 break;
1671 }
1672 if (copy_to_user(argp, &val16, sizeof(val16)))
1673 ret = -EFAULT;
1674 break;
1675 case SONYPI_IOCGBAT2REM:
1676 if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
1677 ret = -EIO;
1678 break;
1679 }
1680 if (copy_to_user(argp, &val16, sizeof(val16)))
1681 ret = -EFAULT;
1682 break;
1683 case SONYPI_IOCGBATFLAGS:
1684 if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
1685 ret = -EIO;
1686 break;
1687 }
1688 val8 &= 0x07;
1689 if (copy_to_user(argp, &val8, sizeof(val8)))
1690 ret = -EFAULT;
1691 break;
1692 case SONYPI_IOCGBLUE:
1693 val8 = spic_dev.bluetooth_power;
1694 if (copy_to_user(argp, &val8, sizeof(val8)))
1695 ret = -EFAULT;
1696 break;
1697 case SONYPI_IOCSBLUE:
1698 if (copy_from_user(&val8, argp, sizeof(val8))) {
1699 ret = -EFAULT;
1700 break;
1701 }
1702 __sony_pic_set_bluetoothpower(val8);
1703 break;
1704 /* FAN Controls */
1705 case SONYPI_IOCGFAN:
1706 if (sony_pic_get_fanspeed(&val8)) {
1707 ret = -EIO;
1708 break;
1709 }
1710 if (copy_to_user(argp, &val8, sizeof(val8)))
1711 ret = -EFAULT;
1712 break;
1713 case SONYPI_IOCSFAN:
1714 if (copy_from_user(&val8, argp, sizeof(val8))) {
1715 ret = -EFAULT;
1716 break;
1717 }
1718 if (sony_pic_set_fanspeed(val8))
1719 ret = -EIO;
1720 break;
1721 /* GET Temperature (useful under APM) */
1722 case SONYPI_IOCGTEMP:
1723 if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
1724 ret = -EIO;
1725 break;
1726 }
1727 if (copy_to_user(argp, &val8, sizeof(val8)))
1728 ret = -EFAULT;
1729 break;
1730 default:
1731 ret = -EINVAL;
1732 }
1733 mutex_unlock(&spic_dev.lock);
1734 return ret;
1735}
1736
1737static const struct file_operations sonypi_misc_fops = {
1738 .owner = THIS_MODULE,
1739 .read = sonypi_misc_read,
1740 .poll = sonypi_misc_poll,
1741 .open = sonypi_misc_open,
1742 .release = sonypi_misc_release,
1743 .fasync = sonypi_misc_fasync,
1744 .ioctl = sonypi_misc_ioctl,
1745};
1746
1747static struct miscdevice sonypi_misc_device = {
1748 .minor = MISC_DYNAMIC_MINOR,
1749 .name = "sonypi",
1750 .fops = &sonypi_misc_fops,
1751};
1752
1753static void sonypi_compat_report_event(u8 event)
1754{
1755 kfifo_put(sonypi_compat.fifo, (unsigned char *)&event, sizeof(event));
1756 kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
1757 wake_up_interruptible(&sonypi_compat.fifo_proc_list);
1758}
1759
1760static int sonypi_compat_init(void)
1761{
1762 int error;
1763
1764 spin_lock_init(&sonypi_compat.fifo_lock);
1765 sonypi_compat.fifo = kfifo_alloc(SONY_LAPTOP_BUF_SIZE, GFP_KERNEL,
1766 &sonypi_compat.fifo_lock);
1767 if (IS_ERR(sonypi_compat.fifo)) {
1768 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
1769 return PTR_ERR(sonypi_compat.fifo);
1770 }
1771
1772 init_waitqueue_head(&sonypi_compat.fifo_proc_list);
1773
1774 if (minor != -1)
1775 sonypi_misc_device.minor = minor;
1776 error = misc_register(&sonypi_misc_device);
1777 if (error) {
1778 printk(KERN_ERR DRV_PFX "misc_register failed\n");
1779 goto err_free_kfifo;
1780 }
1781 if (minor == -1)
1782 printk(KERN_INFO DRV_PFX "device allocated minor is %d\n",
1783 sonypi_misc_device.minor);
1784
1785 return 0;
1786
1787err_free_kfifo:
1788 kfifo_free(sonypi_compat.fifo);
1789 return error;
1790}
1791
1792static void sonypi_compat_exit(void)
1793{
1794 misc_deregister(&sonypi_misc_device);
1795 kfifo_free(sonypi_compat.fifo);
1796}
1797#else
1798static int sonypi_compat_init(void) { return 0; }
1799static void sonypi_compat_exit(void) { }
1800static void sonypi_compat_report_event(u8 event) { }
1801#endif /* CONFIG_SONY_LAPTOP_OLD */
1802
1803/*
1804 * ACPI callbacks
1805 */
1806static acpi_status
1807sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
1808{
1809 u32 i;
1810 struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
1811
1812 switch (resource->type) {
1813 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
1814 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
1815 return AE_OK;
1816
1817 case ACPI_RESOURCE_TYPE_IRQ:
1818 {
1819 struct acpi_resource_irq *p = &resource->data.irq;
1820 struct sony_pic_irq *interrupt = NULL;
1821 if (!p || !p->interrupt_count) {
1822 /*
1823 * IRQ descriptors may have no IRQ# bits set,
1824 * particularly those those w/ _STA disabled
1825 */
1826 dprintk("Blank IRQ resource\n");
1827 return AE_OK;
1828 }
1829 for (i = 0; i < p->interrupt_count; i++) {
1830 if (!p->interrupts[i]) {
1831 printk(KERN_WARNING DRV_PFX
1832 "Invalid IRQ %d\n",
1833 p->interrupts[i]);
1834 continue;
1835 }
1836 interrupt = kzalloc(sizeof(*interrupt),
1837 GFP_KERNEL);
1838 if (!interrupt)
1839 return AE_ERROR;
1840
1841 list_add_tail(&interrupt->list, &dev->interrupts);
1842 interrupt->irq.triggering = p->triggering;
1843 interrupt->irq.polarity = p->polarity;
1844 interrupt->irq.sharable = p->sharable;
1845 interrupt->irq.interrupt_count = 1;
1846 interrupt->irq.interrupts[0] = p->interrupts[i];
1847 }
1848 return AE_OK;
1849 }
1850 case ACPI_RESOURCE_TYPE_IO:
1851 {
1852 struct acpi_resource_io *io = &resource->data.io;
1853 struct sony_pic_ioport *ioport = NULL;
1854 if (!io) {
1855 dprintk("Blank IO resource\n");
1856 return AE_OK;
1857 }
1858
1859 ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
1860 if (!ioport)
1861 return AE_ERROR;
1862
1863 list_add_tail(&ioport->list, &dev->ioports);
1864 memcpy(&ioport->io, io, sizeof(*io));
1865 return AE_OK;
1866 }
1867 default:
1868 dprintk("Resource %d isn't an IRQ nor an IO port\n",
1869 resource->type);
1870
1871 case ACPI_RESOURCE_TYPE_END_TAG:
1872 return AE_OK;
1873 }
1874 return AE_CTRL_TERMINATE;
1875}
1876
1877static int sony_pic_possible_resources(struct acpi_device *device)
1878{
1879 int result = 0;
1880 acpi_status status = AE_OK;
1881
1882 if (!device)
1883 return -EINVAL;
1884
1885 /* get device status */
1886 /* see acpi_pci_link_get_current acpi_pci_link_get_possible */
1887 dprintk("Evaluating _STA\n");
1888 result = acpi_bus_get_status(device);
1889 if (result) {
1890 printk(KERN_WARNING DRV_PFX "Unable to read status\n");
1891 goto end;
1892 }
1893
1894 if (!device->status.enabled)
1895 dprintk("Device disabled\n");
1896 else
1897 dprintk("Device enabled\n");
1898
1899 /*
1900 * Query and parse 'method'
1901 */
1902 dprintk("Evaluating %s\n", METHOD_NAME__PRS);
1903 status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
1904 sony_pic_read_possible_resource, &spic_dev);
1905 if (ACPI_FAILURE(status)) {
1906 printk(KERN_WARNING DRV_PFX
1907 "Failure evaluating %s\n",
1908 METHOD_NAME__PRS);
1909 result = -ENODEV;
1910 }
1911end:
1912 return result;
1913}
1914
1915/*
1916 * Disable the spic device by calling its _DIS method
1917 */
1918static int sony_pic_disable(struct acpi_device *device)
1919{
1920 if (ACPI_FAILURE(acpi_evaluate_object(device->handle, "_DIS", 0, NULL)))
1921 return -ENXIO;
1922
1923 dprintk("Device disabled\n");
1924 return 0;
1925}
1926
1927
1928/*
1929 * Based on drivers/acpi/pci_link.c:acpi_pci_link_set
1930 *
1931 * Call _SRS to set current resources
1932 */
1933static int sony_pic_enable(struct acpi_device *device,
1934 struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
1935{
1936 acpi_status status;
1937 int result = 0;
1938 struct {
1939 struct acpi_resource io_res;
1940 struct acpi_resource irq_res;
1941 struct acpi_resource end;
1942 } *resource;
1943 struct acpi_buffer buffer = { 0, NULL };
1944
1945 if (!ioport || !irq)
1946 return -EINVAL;
1947
1948 /* init acpi_buffer */
1949 resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
1950 if (!resource)
1951 return -ENOMEM;
1952
1953 buffer.length = sizeof(*resource) + 1;
1954 buffer.pointer = resource;
1955
1956 /* setup io resource */
1957 resource->io_res.type = ACPI_RESOURCE_TYPE_IO;
1958 resource->io_res.length = sizeof(struct acpi_resource);
1959 memcpy(&resource->io_res.data.io, &ioport->io,
1960 sizeof(struct acpi_resource_io));
1961
1962 /* setup irq resource */
1963 resource->irq_res.type = ACPI_RESOURCE_TYPE_IRQ;
1964 resource->irq_res.length = sizeof(struct acpi_resource);
1965 memcpy(&resource->irq_res.data.irq, &irq->irq,
1966 sizeof(struct acpi_resource_irq));
1967 /* we requested a shared irq */
1968 resource->irq_res.data.irq.sharable = ACPI_SHARED;
1969
1970 resource->end.type = ACPI_RESOURCE_TYPE_END_TAG;
1971
1972 /* Attempt to set the resource */
1973 dprintk("Evaluating _SRS\n");
1974 status = acpi_set_current_resources(device->handle, &buffer);
1975
1976 /* check for total failure */
1977 if (ACPI_FAILURE(status)) {
1978 printk(KERN_ERR DRV_PFX "Error evaluating _SRS");
1979 result = -ENODEV;
1980 goto end;
1981 }
1982
1983 /* Necessary device initializations calls (from sonypi) */
1984 sony_pic_call1(0x82);
1985 sony_pic_call2(0x81, 0xff);
1986 sony_pic_call1(compat ? 0x92 : 0x82);
1987
1988end:
1989 kfree(resource);
1990 return result;
1991}
1992
1993/*****************
1994 *
1995 * ISR: some event is available
1996 *
1997 *****************/
1998static irqreturn_t sony_pic_irq(int irq, void *dev_id)
1999{
2000 int i, j;
2001 u32 port_val = 0;
2002 u8 ev = 0;
2003 u8 data_mask = 0;
2004 u8 device_event = 0;
2005
2006 struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
2007
2008 acpi_os_read_port(dev->cur_ioport->io.minimum, &port_val,
2009 dev->cur_ioport->io.address_length);
2010 ev = port_val & SONY_PIC_EV_MASK;
2011 data_mask = 0xff & (port_val >> (dev->cur_ioport->io.address_length - 8));
2012
2013 dprintk("event (0x%.8x [%.2x] [%.2x]) at port 0x%.4x\n",
2014 port_val, ev, data_mask, dev->cur_ioport->io.minimum);
2015
2016 if (ev == 0x00 || ev == 0xff)
2017 return IRQ_HANDLED;
2018
2019 for (i = 0; sony_pic_eventtypes[i].model; i++) {
2020
2021 if (spic_dev.model != sony_pic_eventtypes[i].model)
2022 continue;
2023
2024 if ((data_mask & sony_pic_eventtypes[i].data) !=
2025 sony_pic_eventtypes[i].data)
2026 continue;
2027
2028 if (!(mask & sony_pic_eventtypes[i].mask))
2029 continue;
2030
2031 for (j = 0; sony_pic_eventtypes[i].events[j].event; j++) {
2032 if (ev == sony_pic_eventtypes[i].events[j].data) {
2033 device_event =
2034 sony_pic_eventtypes[i].events[j].event;
2035 goto found;
2036 }
2037 }
2038 }
2039 return IRQ_HANDLED;
2040
2041found:
2042 sony_laptop_report_input_event(device_event);
2043 acpi_bus_generate_event(spic_dev.acpi_dev, 1, device_event);
2044 sonypi_compat_report_event(device_event);
2045
2046 return IRQ_HANDLED;
2047}
2048
2049/*****************
2050 *
2051 * ACPI driver
2052 *
2053 *****************/
2054static int sony_pic_remove(struct acpi_device *device, int type)
2055{
2056 struct sony_pic_ioport *io, *tmp_io;
2057 struct sony_pic_irq *irq, *tmp_irq;
2058
2059 sonypi_compat_exit();
2060
2061 if (sony_pic_disable(device)) {
2062 printk(KERN_ERR DRV_PFX "Couldn't disable device.\n");
2063 return -ENXIO;
2064 }
2065
2066 free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2067 release_region(spic_dev.cur_ioport->io.minimum,
2068 spic_dev.cur_ioport->io.address_length);
2069
2070 sony_laptop_remove_input();
2071
2072 /* pf attrs */
2073 sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2074 sony_pf_remove();
2075
2076 list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2077 list_del(&io->list);
2078 kfree(io);
2079 }
2080 list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2081 list_del(&irq->list);
2082 kfree(irq);
2083 }
2084 spic_dev.cur_ioport = NULL;
2085 spic_dev.cur_irq = NULL;
2086
2087 dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
2088 return 0;
2089}
2090
2091static int sony_pic_add(struct acpi_device *device)
2092{
2093 int result;
2094 struct sony_pic_ioport *io, *tmp_io;
2095 struct sony_pic_irq *irq, *tmp_irq;
2096
2097 printk(KERN_INFO DRV_PFX "%s v%s.\n",
2098 SONY_PIC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
2099
2100 spic_dev.acpi_dev = device;
2101 strcpy(acpi_device_class(device), "sony/hotkey");
2102 spic_dev.model = sony_pic_detect_device_type();
2103 mutex_init(&spic_dev.lock);
2104
2105 /* read _PRS resources */
2106 result = sony_pic_possible_resources(device);
2107 if (result) {
2108 printk(KERN_ERR DRV_PFX
2109 "Unabe to read possible resources.\n");
2110 goto err_free_resources;
2111 }
2112
2113 /* setup input devices and helper fifo */
2114 result = sony_laptop_setup_input();
2115 if (result) {
2116 printk(KERN_ERR DRV_PFX
2117 "Unabe to create input devices.\n");
2118 goto err_free_resources;
2119 }
2120
2121 /* request io port */
2122 list_for_each_entry(io, &spic_dev.ioports, list) {
2123 if (request_region(io->io.minimum, io->io.address_length,
2124 "Sony Programable I/O Device")) {
2125 dprintk("I/O port: 0x%.4x (0x%.4x) + 0x%.2x\n",
2126 io->io.minimum, io->io.maximum,
2127 io->io.address_length);
2128 spic_dev.cur_ioport = io;
2129 break;
2130 }
2131 }
2132 if (!spic_dev.cur_ioport) {
2133 printk(KERN_ERR DRV_PFX "Failed to request_region.\n");
2134 result = -ENODEV;
2135 goto err_remove_input;
2136 }
2137
2138 /* request IRQ */
2139 list_for_each_entry(irq, &spic_dev.interrupts, list) {
2140 if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
2141 IRQF_SHARED, "sony-laptop", &spic_dev)) {
2142 dprintk("IRQ: %d - triggering: %d - "
2143 "polarity: %d - shr: %d\n",
2144 irq->irq.interrupts[0],
2145 irq->irq.triggering,
2146 irq->irq.polarity,
2147 irq->irq.sharable);
2148 spic_dev.cur_irq = irq;
2149 break;
2150 }
2151 }
2152 if (!spic_dev.cur_irq) {
2153 printk(KERN_ERR DRV_PFX "Failed to request_irq.\n");
2154 result = -ENODEV;
2155 goto err_release_region;
2156 }
2157
2158 /* set resource status _SRS */
2159 result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2160 if (result) {
2161 printk(KERN_ERR DRV_PFX "Couldn't enable device.\n");
2162 goto err_free_irq;
2163 }
2164
2165 spic_dev.bluetooth_power = -1;
2166 /* create device attributes */
2167 result = sony_pf_add();
2168 if (result)
2169 goto err_disable_device;
2170
2171 result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2172 if (result)
2173 goto err_remove_pf;
2174
2175 if (sonypi_compat_init())
2176 goto err_remove_pf;
2177
2178 return 0;
2179
2180err_remove_pf:
2181 sony_pf_remove();
2182
2183err_disable_device:
2184 sony_pic_disable(device);
2185
2186err_free_irq:
2187 free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2188
2189err_release_region:
2190 release_region(spic_dev.cur_ioport->io.minimum,
2191 spic_dev.cur_ioport->io.address_length);
2192
2193err_remove_input:
2194 sony_laptop_remove_input();
2195
2196err_free_resources:
2197 list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2198 list_del(&io->list);
2199 kfree(io);
2200 }
2201 list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2202 list_del(&irq->list);
2203 kfree(irq);
2204 }
2205 spic_dev.cur_ioport = NULL;
2206 spic_dev.cur_irq = NULL;
2207
2208 return result;
2209}
2210
2211static int sony_pic_suspend(struct acpi_device *device, pm_message_t state)
2212{
2213 if (sony_pic_disable(device))
2214 return -ENXIO;
2215 return 0;
2216}
2217
2218static int sony_pic_resume(struct acpi_device *device)
2219{
2220 sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2221 return 0;
2222}
2223
2224static struct acpi_driver sony_pic_driver = {
2225 .name = SONY_PIC_DRIVER_NAME,
2226 .class = SONY_PIC_CLASS,
2227 .ids = SONY_PIC_HID,
2228 .owner = THIS_MODULE,
2229 .ops = {
2230 .add = sony_pic_add,
2231 .remove = sony_pic_remove,
2232 .suspend = sony_pic_suspend,
2233 .resume = sony_pic_resume,
2234 },
2235};
2236
2237static struct dmi_system_id __initdata sonypi_dmi_table[] = {
2238 {
2239 .ident = "Sony Vaio",
2240 .matches = {
2241 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2242 DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
2243 },
2244 },
2245 {
2246 .ident = "Sony Vaio",
2247 .matches = {
2248 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2249 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
2250 },
2251 },
2252 { }
2253};
2254
2255static int __init sony_laptop_init(void)
2256{
2257 int result;
2258
2259 if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
2260 result = acpi_bus_register_driver(&sony_pic_driver);
2261 if (result) {
2262 printk(KERN_ERR DRV_PFX
2263 "Unable to register SPIC driver.");
2264 goto out;
2265 }
2266 }
2267
2268 result = acpi_bus_register_driver(&sony_nc_driver);
2269 if (result) {
2270 printk(KERN_ERR DRV_PFX "Unable to register SNC driver.");
2271 goto out_unregister_pic;
2272 }
2273
2274 return 0;
2275
2276out_unregister_pic:
2277 if (!no_spic)
2278 acpi_bus_unregister_driver(&sony_pic_driver);
2279out:
2280 return result;
556} 2281}
557 2282
558static void __exit sony_acpi_exit(void) 2283static void __exit sony_laptop_exit(void)
559{ 2284{
560 acpi_bus_unregister_driver(&sony_acpi_driver); 2285 acpi_bus_unregister_driver(&sony_nc_driver);
2286 if (!no_spic)
2287 acpi_bus_unregister_driver(&sony_pic_driver);
561} 2288}
562 2289
563module_init(sony_acpi_init); 2290module_init(sony_laptop_init);
564module_exit(sony_acpi_exit); 2291module_exit(sony_laptop_exit);
diff --git a/drivers/misc/thinkpad_acpi.c b/drivers/misc/thinkpad_acpi.c
new file mode 100644
index 000000000000..6c36a55cb3d1
--- /dev/null
+++ b/drivers/misc/thinkpad_acpi.c
@@ -0,0 +1,4312 @@
1/*
2 * thinkpad_acpi.c - ThinkPad ACPI Extras
3 *
4 *
5 * Copyright (C) 2004-2005 Borislav Deianov <borislav@users.sf.net>
6 * Copyright (C) 2006-2007 Henrique de Moraes Holschuh <hmh@hmh.eng.br>
7 *
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.
12 *
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.
17 *
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
21 * 02110-1301, USA.
22 */
23
24#define IBM_VERSION "0.14"
25#define TPACPI_SYSFS_VERSION 0x000100
26
27/*
28 * Changelog:
29 * 2007-03-27 0.14 renamed to thinkpad_acpi and moved to
30 * drivers/misc.
31 *
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.
35 *
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
53 * use MODULE_VERSION
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
77 * thinklight on/off
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
83 */
84
85#include "thinkpad_acpi.h"
86
87MODULE_AUTHOR("Borislav Deianov, Henrique de Moraes Holschuh");
88MODULE_DESCRIPTION(IBM_DESC);
89MODULE_VERSION(IBM_VERSION);
90MODULE_LICENSE("GPL");
91
92/* Please remove this in year 2009 */
93MODULE_ALIAS("ibm_acpi");
94
95#define __unused __attribute__ ((unused))
96
97/****************************************************************************
98 ****************************************************************************
99 *
100 * ACPI Helpers and device model
101 *
102 ****************************************************************************
103 ****************************************************************************/
104
105/*************************************************************************
106 * ACPI basic handles
107 */
108
109static acpi_handle root_handle = NULL;
110
111#define IBM_HANDLE(object, parent, paths...) \
112 static acpi_handle object##_handle; \
113 static acpi_handle *object##_parent = &parent##_handle; \
114 static char *object##_path; \
115 static char *object##_paths[] = { paths }
116
117IBM_HANDLE(ec, root, "\\_SB.PCI0.ISA.EC0", /* 240, 240x */
118 "\\_SB.PCI.ISA.EC", /* 570 */
119 "\\_SB.PCI0.ISA0.EC0", /* 600e/x, 770e, 770x */
120 "\\_SB.PCI0.ISA.EC", /* A21e, A2xm/p, T20-22, X20-21 */
121 "\\_SB.PCI0.AD4S.EC0", /* i1400, R30 */
122 "\\_SB.PCI0.ICH3.EC0", /* R31 */
123 "\\_SB.PCI0.LPC.EC", /* all others */
124 );
125
126IBM_HANDLE(ecrd, ec, "ECRD"); /* 570 */
127IBM_HANDLE(ecwr, ec, "ECWR"); /* 570 */
128
129
130/*************************************************************************
131 * Misc ACPI handles
132 */
133
134IBM_HANDLE(cmos, root, "\\UCMS", /* R50, R50e, R50p, R51, T4x, X31, X40 */
135 "\\CMOS", /* A3x, G4x, R32, T23, T30, X22-24, X30 */
136 "\\CMS", /* R40, R40e */
137 ); /* all others */
138
139IBM_HANDLE(hkey, ec, "\\_SB.HKEY", /* 600e/x, 770e, 770x */
140 "^HKEY", /* R30, R31 */
141 "HKEY", /* all others */
142 ); /* 570 */
143
144
145/*************************************************************************
146 * ACPI helpers
147 */
148
149static int acpi_evalf(acpi_handle handle,
150 void *res, char *method, char *fmt, ...)
151{
152 char *fmt0 = fmt;
153 struct acpi_object_list params;
154 union acpi_object in_objs[IBM_MAX_ACPI_ARGS];
155 struct acpi_buffer result, *resultp;
156 union acpi_object out_obj;
157 acpi_status status;
158 va_list ap;
159 char res_type;
160 int success;
161 int quiet;
162
163 if (!*fmt) {
164 printk(IBM_ERR "acpi_evalf() called with empty format\n");
165 return 0;
166 }
167
168 if (*fmt == 'q') {
169 quiet = 1;
170 fmt++;
171 } else
172 quiet = 0;
173
174 res_type = *(fmt++);
175
176 params.count = 0;
177 params.pointer = &in_objs[0];
178
179 va_start(ap, fmt);
180 while (*fmt) {
181 char c = *(fmt++);
182 switch (c) {
183 case 'd': /* int */
184 in_objs[params.count].integer.value = va_arg(ap, int);
185 in_objs[params.count++].type = ACPI_TYPE_INTEGER;
186 break;
187 /* add more types as needed */
188 default:
189 printk(IBM_ERR "acpi_evalf() called "
190 "with invalid format character '%c'\n", c);
191 return 0;
192 }
193 }
194 va_end(ap);
195
196 if (res_type != 'v') {
197 result.length = sizeof(out_obj);
198 result.pointer = &out_obj;
199 resultp = &result;
200 } else
201 resultp = NULL;
202
203 status = acpi_evaluate_object(handle, method, &params, resultp);
204
205 switch (res_type) {
206 case 'd': /* int */
207 if (res)
208 *(int *)res = out_obj.integer.value;
209 success = status == AE_OK && out_obj.type == ACPI_TYPE_INTEGER;
210 break;
211 case 'v': /* void */
212 success = status == AE_OK;
213 break;
214 /* add more types as needed */
215 default:
216 printk(IBM_ERR "acpi_evalf() called "
217 "with invalid format character '%c'\n", res_type);
218 return 0;
219 }
220
221 if (!success && !quiet)
222 printk(IBM_ERR "acpi_evalf(%s, %s, ...) failed: %d\n",
223 method, fmt0, status);
224
225 return success;
226}
227
228static void __unused acpi_print_int(acpi_handle handle, char *method)
229{
230 int i;
231
232 if (acpi_evalf(handle, &i, method, "d"))
233 printk(IBM_INFO "%s = 0x%x\n", method, i);
234 else
235 printk(IBM_ERR "error calling %s\n", method);
236}
237
238static int acpi_ec_read(int i, u8 * p)
239{
240 int v;
241
242 if (ecrd_handle) {
243 if (!acpi_evalf(ecrd_handle, &v, NULL, "dd", i))
244 return 0;
245 *p = v;
246 } else {
247 if (ec_read(i, p) < 0)
248 return 0;
249 }
250
251 return 1;
252}
253
254static int acpi_ec_write(int i, u8 v)
255{
256 if (ecwr_handle) {
257 if (!acpi_evalf(ecwr_handle, NULL, NULL, "vdd", i, v))
258 return 0;
259 } else {
260 if (ec_write(i, v) < 0)
261 return 0;
262 }
263
264 return 1;
265}
266
267static int _sta(acpi_handle handle)
268{
269 int status;
270
271 if (!handle || !acpi_evalf(handle, &status, "_STA", "d"))
272 status = 0;
273
274 return status;
275}
276
277static int issue_thinkpad_cmos_command(int cmos_cmd)
278{
279 if (!cmos_handle)
280 return -ENXIO;
281
282 if (!acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd))
283 return -EIO;
284
285 return 0;
286}
287
288/*************************************************************************
289 * ACPI device model
290 */
291
292static void drv_acpi_handle_init(char *name,
293 acpi_handle *handle, acpi_handle parent,
294 char **paths, int num_paths, char **path)
295{
296 int i;
297 acpi_status status;
298
299 vdbg_printk(TPACPI_DBG_INIT, "trying to locate ACPI handle for %s\n",
300 name);
301
302 for (i = 0; i < num_paths; i++) {
303 status = acpi_get_handle(parent, paths[i], handle);
304 if (ACPI_SUCCESS(status)) {
305 *path = paths[i];
306 dbg_printk(TPACPI_DBG_INIT,
307 "Found ACPI handle %s for %s\n",
308 *path, name);
309 return;
310 }
311 }
312
313 vdbg_printk(TPACPI_DBG_INIT, "ACPI handle for %s not found\n",
314 name);
315 *handle = NULL;
316}
317
318static void dispatch_acpi_notify(acpi_handle handle, u32 event, void *data)
319{
320 struct ibm_struct *ibm = data;
321
322 if (!ibm || !ibm->acpi || !ibm->acpi->notify)
323 return;
324
325 ibm->acpi->notify(ibm, event);
326}
327
328static int __init setup_acpi_notify(struct ibm_struct *ibm)
329{
330 acpi_status status;
331 int rc;
332
333 BUG_ON(!ibm->acpi);
334
335 if (!*ibm->acpi->handle)
336 return 0;
337
338 vdbg_printk(TPACPI_DBG_INIT,
339 "setting up ACPI notify for %s\n", ibm->name);
340
341 rc = acpi_bus_get_device(*ibm->acpi->handle, &ibm->acpi->device);
342 if (rc < 0) {
343 printk(IBM_ERR "acpi_bus_get_device(%s) failed: %d\n",
344 ibm->name, rc);
345 return -ENODEV;
346 }
347
348 acpi_driver_data(ibm->acpi->device) = ibm;
349 sprintf(acpi_device_class(ibm->acpi->device), "%s/%s",
350 IBM_ACPI_EVENT_PREFIX,
351 ibm->name);
352
353 status = acpi_install_notify_handler(*ibm->acpi->handle,
354 ibm->acpi->type, dispatch_acpi_notify, ibm);
355 if (ACPI_FAILURE(status)) {
356 if (status == AE_ALREADY_EXISTS) {
357 printk(IBM_NOTICE "another device driver is already handling %s events\n",
358 ibm->name);
359 } else {
360 printk(IBM_ERR "acpi_install_notify_handler(%s) failed: %d\n",
361 ibm->name, status);
362 }
363 return -ENODEV;
364 }
365 ibm->flags.acpi_notify_installed = 1;
366 return 0;
367}
368
369static int __init tpacpi_device_add(struct acpi_device *device)
370{
371 return 0;
372}
373
374static int __init register_tpacpi_subdriver(struct ibm_struct *ibm)
375{
376 int rc;
377
378 dbg_printk(TPACPI_DBG_INIT,
379 "registering %s as an ACPI driver\n", ibm->name);
380
381 BUG_ON(!ibm->acpi);
382
383 ibm->acpi->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL);
384 if (!ibm->acpi->driver) {
385 printk(IBM_ERR "kzalloc(ibm->driver) failed\n");
386 return -ENOMEM;
387 }
388
389 sprintf(ibm->acpi->driver->name, "%s_%s", IBM_NAME, ibm->name);
390 ibm->acpi->driver->ids = ibm->acpi->hid;
391 ibm->acpi->driver->ops.add = &tpacpi_device_add;
392
393 rc = acpi_bus_register_driver(ibm->acpi->driver);
394 if (rc < 0) {
395 printk(IBM_ERR "acpi_bus_register_driver(%s) failed: %d\n",
396 ibm->acpi->hid, rc);
397 kfree(ibm->acpi->driver);
398 ibm->acpi->driver = NULL;
399 } else if (!rc)
400 ibm->flags.acpi_driver_registered = 1;
401
402 return rc;
403}
404
405
406/****************************************************************************
407 ****************************************************************************
408 *
409 * Procfs Helpers
410 *
411 ****************************************************************************
412 ****************************************************************************/
413
414static int dispatch_procfs_read(char *page, char **start, off_t off,
415 int count, int *eof, void *data)
416{
417 struct ibm_struct *ibm = data;
418 int len;
419
420 if (!ibm || !ibm->read)
421 return -EINVAL;
422
423 len = ibm->read(page);
424 if (len < 0)
425 return len;
426
427 if (len <= off + count)
428 *eof = 1;
429 *start = page + off;
430 len -= off;
431 if (len > count)
432 len = count;
433 if (len < 0)
434 len = 0;
435
436 return len;
437}
438
439static int dispatch_procfs_write(struct file *file,
440 const char __user * userbuf,
441 unsigned long count, void *data)
442{
443 struct ibm_struct *ibm = data;
444 char *kernbuf;
445 int ret;
446
447 if (!ibm || !ibm->write)
448 return -EINVAL;
449
450 kernbuf = kmalloc(count + 2, GFP_KERNEL);
451 if (!kernbuf)
452 return -ENOMEM;
453
454 if (copy_from_user(kernbuf, userbuf, count)) {
455 kfree(kernbuf);
456 return -EFAULT;
457 }
458
459 kernbuf[count] = 0;
460 strcat(kernbuf, ",");
461 ret = ibm->write(kernbuf);
462 if (ret == 0)
463 ret = count;
464
465 kfree(kernbuf);
466
467 return ret;
468}
469
470static char *next_cmd(char **cmds)
471{
472 char *start = *cmds;
473 char *end;
474
475 while ((end = strchr(start, ',')) && end == start)
476 start = end + 1;
477
478 if (!end)
479 return NULL;
480
481 *end = 0;
482 *cmds = end + 1;
483 return start;
484}
485
486
487/****************************************************************************
488 ****************************************************************************
489 *
490 * Device model: hwmon and platform
491 *
492 ****************************************************************************
493 ****************************************************************************/
494
495static struct platform_device *tpacpi_pdev = NULL;
496static struct class_device *tpacpi_hwmon = NULL;
497
498static struct platform_driver tpacpi_pdriver = {
499 .driver = {
500 .name = IBM_DRVR_NAME,
501 .owner = THIS_MODULE,
502 },
503};
504
505
506/*************************************************************************
507 * thinkpad-acpi driver attributes
508 */
509
510/* interface_version --------------------------------------------------- */
511static ssize_t tpacpi_driver_interface_version_show(
512 struct device_driver *drv,
513 char *buf)
514{
515 return snprintf(buf, PAGE_SIZE, "0x%08x\n", TPACPI_SYSFS_VERSION);
516}
517
518static DRIVER_ATTR(interface_version, S_IRUGO,
519 tpacpi_driver_interface_version_show, NULL);
520
521/* debug_level --------------------------------------------------------- */
522static ssize_t tpacpi_driver_debug_show(struct device_driver *drv,
523 char *buf)
524{
525 return snprintf(buf, PAGE_SIZE, "0x%04x\n", dbg_level);
526}
527
528static ssize_t tpacpi_driver_debug_store(struct device_driver *drv,
529 const char *buf, size_t count)
530{
531 unsigned long t;
532
533 if (parse_strtoul(buf, 0xffff, &t))
534 return -EINVAL;
535
536 dbg_level = t;
537
538 return count;
539}
540
541static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO,
542 tpacpi_driver_debug_show, tpacpi_driver_debug_store);
543
544/* version ------------------------------------------------------------- */
545static ssize_t tpacpi_driver_version_show(struct device_driver *drv,
546 char *buf)
547{
548 return snprintf(buf, PAGE_SIZE, "%s v%s\n", IBM_DESC, IBM_VERSION);
549}
550
551static DRIVER_ATTR(version, S_IRUGO,
552 tpacpi_driver_version_show, NULL);
553
554/* --------------------------------------------------------------------- */
555
556static struct driver_attribute* tpacpi_driver_attributes[] = {
557 &driver_attr_debug_level, &driver_attr_version,
558 &driver_attr_interface_version,
559};
560
561static int __init tpacpi_create_driver_attributes(struct device_driver *drv)
562{
563 int i, res;
564
565 i = 0;
566 res = 0;
567 while (!res && i < ARRAY_SIZE(tpacpi_driver_attributes)) {
568 res = driver_create_file(drv, tpacpi_driver_attributes[i]);
569 i++;
570 }
571
572 return res;
573}
574
575static void tpacpi_remove_driver_attributes(struct device_driver *drv)
576{
577 int i;
578
579 for(i = 0; i < ARRAY_SIZE(tpacpi_driver_attributes); i++)
580 driver_remove_file(drv, tpacpi_driver_attributes[i]);
581}
582
583/*************************************************************************
584 * sysfs support helpers
585 */
586
587struct attribute_set_obj {
588 struct attribute_set s;
589 struct attribute *a;
590} __attribute__((packed));
591
592static struct attribute_set *create_attr_set(unsigned int max_members,
593 const char* name)
594{
595 struct attribute_set_obj *sobj;
596
597 if (max_members == 0)
598 return NULL;
599
600 /* Allocates space for implicit NULL at the end too */
601 sobj = kzalloc(sizeof(struct attribute_set_obj) +
602 max_members * sizeof(struct attribute *),
603 GFP_KERNEL);
604 if (!sobj)
605 return NULL;
606 sobj->s.max_members = max_members;
607 sobj->s.group.attrs = &sobj->a;
608 sobj->s.group.name = name;
609
610 return &sobj->s;
611}
612
613/* not multi-threaded safe, use it in a single thread per set */
614static int add_to_attr_set(struct attribute_set* s, struct attribute *attr)
615{
616 if (!s || !attr)
617 return -EINVAL;
618
619 if (s->members >= s->max_members)
620 return -ENOMEM;
621
622 s->group.attrs[s->members] = attr;
623 s->members++;
624
625 return 0;
626}
627
628static int add_many_to_attr_set(struct attribute_set* s,
629 struct attribute **attr,
630 unsigned int count)
631{
632 int i, res;
633
634 for (i = 0; i < count; i++) {
635 res = add_to_attr_set(s, attr[i]);
636 if (res)
637 return res;
638 }
639
640 return 0;
641}
642
643static void delete_attr_set(struct attribute_set* s, struct kobject *kobj)
644{
645 sysfs_remove_group(kobj, &s->group);
646 destroy_attr_set(s);
647}
648
649static int parse_strtoul(const char *buf,
650 unsigned long max, unsigned long *value)
651{
652 char *endp;
653
654 *value = simple_strtoul(buf, &endp, 0);
655 while (*endp && isspace(*endp))
656 endp++;
657 if (*endp || *value > max)
658 return -EINVAL;
659
660 return 0;
661}
662
663/****************************************************************************
664 ****************************************************************************
665 *
666 * Subdrivers
667 *
668 ****************************************************************************
669 ****************************************************************************/
670
671/*************************************************************************
672 * thinkpad-acpi init subdriver
673 */
674
675static int __init thinkpad_acpi_driver_init(struct ibm_init_struct *iibm)
676{
677 printk(IBM_INFO "%s v%s\n", IBM_DESC, IBM_VERSION);
678 printk(IBM_INFO "%s\n", IBM_URL);
679
680 if (ibm_thinkpad_ec_found)
681 printk(IBM_INFO "ThinkPad EC firmware %s\n",
682 ibm_thinkpad_ec_found);
683
684 return 0;
685}
686
687static int thinkpad_acpi_driver_read(char *p)
688{
689 int len = 0;
690
691 len += sprintf(p + len, "driver:\t\t%s\n", IBM_DESC);
692 len += sprintf(p + len, "version:\t%s\n", IBM_VERSION);
693
694 return len;
695}
696
697static struct ibm_struct thinkpad_acpi_driver_data = {
698 .name = "driver",
699 .read = thinkpad_acpi_driver_read,
700};
701
702/*************************************************************************
703 * Hotkey subdriver
704 */
705
706static int hotkey_orig_status;
707static int hotkey_orig_mask;
708
709static struct attribute_set *hotkey_dev_attributes = NULL;
710
711/* sysfs hotkey enable ------------------------------------------------- */
712static ssize_t hotkey_enable_show(struct device *dev,
713 struct device_attribute *attr,
714 char *buf)
715{
716 int res, status, mask;
717
718 res = hotkey_get(&status, &mask);
719 if (res)
720 return res;
721
722 return snprintf(buf, PAGE_SIZE, "%d\n", status);
723}
724
725static ssize_t hotkey_enable_store(struct device *dev,
726 struct device_attribute *attr,
727 const char *buf, size_t count)
728{
729 unsigned long t;
730 int res, status, mask;
731
732 if (parse_strtoul(buf, 1, &t))
733 return -EINVAL;
734
735 res = hotkey_get(&status, &mask);
736 if (!res)
737 res = hotkey_set(t, mask);
738
739 return (res) ? res : count;
740}
741
742static struct device_attribute dev_attr_hotkey_enable =
743 __ATTR(enable, S_IWUSR | S_IRUGO,
744 hotkey_enable_show, hotkey_enable_store);
745
746/* sysfs hotkey mask --------------------------------------------------- */
747static ssize_t hotkey_mask_show(struct device *dev,
748 struct device_attribute *attr,
749 char *buf)
750{
751 int res, status, mask;
752
753 res = hotkey_get(&status, &mask);
754 if (res)
755 return res;
756
757 return snprintf(buf, PAGE_SIZE, "0x%04x\n", mask);
758}
759
760static ssize_t hotkey_mask_store(struct device *dev,
761 struct device_attribute *attr,
762 const char *buf, size_t count)
763{
764 unsigned long t;
765 int res, status, mask;
766
767 if (parse_strtoul(buf, 0xffff, &t))
768 return -EINVAL;
769
770 res = hotkey_get(&status, &mask);
771 if (!res)
772 hotkey_set(status, t);
773
774 return (res) ? res : count;
775}
776
777static struct device_attribute dev_attr_hotkey_mask =
778 __ATTR(mask, S_IWUSR | S_IRUGO,
779 hotkey_mask_show, hotkey_mask_store);
780
781/* sysfs hotkey bios_enabled ------------------------------------------- */
782static ssize_t hotkey_bios_enabled_show(struct device *dev,
783 struct device_attribute *attr,
784 char *buf)
785{
786 return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_orig_status);
787}
788
789static struct device_attribute dev_attr_hotkey_bios_enabled =
790 __ATTR(bios_enabled, S_IRUGO, hotkey_bios_enabled_show, NULL);
791
792/* sysfs hotkey bios_mask ---------------------------------------------- */
793static ssize_t hotkey_bios_mask_show(struct device *dev,
794 struct device_attribute *attr,
795 char *buf)
796{
797 return snprintf(buf, PAGE_SIZE, "0x%04x\n", hotkey_orig_mask);
798}
799
800static struct device_attribute dev_attr_hotkey_bios_mask =
801 __ATTR(bios_mask, S_IRUGO, hotkey_bios_mask_show, NULL);
802
803/* --------------------------------------------------------------------- */
804
805static struct attribute *hotkey_mask_attributes[] = {
806 &dev_attr_hotkey_mask.attr,
807 &dev_attr_hotkey_bios_enabled.attr,
808 &dev_attr_hotkey_bios_mask.attr,
809};
810
811static int __init hotkey_init(struct ibm_init_struct *iibm)
812{
813 int res;
814
815 vdbg_printk(TPACPI_DBG_INIT, "initializing hotkey subdriver\n");
816
817 IBM_ACPIHANDLE_INIT(hkey);
818 mutex_init(&hotkey_mutex);
819
820 /* hotkey not supported on 570 */
821 tp_features.hotkey = hkey_handle != NULL;
822
823 vdbg_printk(TPACPI_DBG_INIT, "hotkeys are %s\n",
824 str_supported(tp_features.hotkey));
825
826 if (tp_features.hotkey) {
827 hotkey_dev_attributes = create_attr_set(4,
828 TPACPI_HOTKEY_SYSFS_GROUP);
829 if (!hotkey_dev_attributes)
830 return -ENOMEM;
831 res = add_to_attr_set(hotkey_dev_attributes,
832 &dev_attr_hotkey_enable.attr);
833 if (res)
834 return res;
835
836 /* mask not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p,
837 A30, R30, R31, T20-22, X20-21, X22-24 */
838 tp_features.hotkey_mask =
839 acpi_evalf(hkey_handle, NULL, "DHKN", "qv");
840
841 vdbg_printk(TPACPI_DBG_INIT, "hotkey masks are %s\n",
842 str_supported(tp_features.hotkey_mask));
843
844 res = hotkey_get(&hotkey_orig_status, &hotkey_orig_mask);
845 if (!res && tp_features.hotkey_mask) {
846 res = add_many_to_attr_set(hotkey_dev_attributes,
847 hotkey_mask_attributes,
848 ARRAY_SIZE(hotkey_mask_attributes));
849 }
850 if (!res)
851 res = register_attr_set_with_sysfs(
852 hotkey_dev_attributes,
853 &tpacpi_pdev->dev.kobj);
854
855 if (res)
856 return res;
857 }
858
859 return (tp_features.hotkey)? 0 : 1;
860}
861
862static void hotkey_exit(void)
863{
864 int res;
865
866 if (tp_features.hotkey) {
867 dbg_printk(TPACPI_DBG_EXIT, "restoring original hotkey mask\n");
868 res = hotkey_set(hotkey_orig_status, hotkey_orig_mask);
869 if (res)
870 printk(IBM_ERR "failed to restore hotkey to BIOS defaults\n");
871 }
872
873 if (hotkey_dev_attributes) {
874 delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj);
875 hotkey_dev_attributes = NULL;
876 }
877}
878
879static void hotkey_notify(struct ibm_struct *ibm, u32 event)
880{
881 int hkey;
882
883 if (acpi_evalf(hkey_handle, &hkey, "MHKP", "d"))
884 acpi_bus_generate_event(ibm->acpi->device, event, hkey);
885 else {
886 printk(IBM_ERR "unknown hotkey event %d\n", event);
887 acpi_bus_generate_event(ibm->acpi->device, event, 0);
888 }
889}
890
891/*
892 * Call with hotkey_mutex held
893 */
894static int hotkey_get(int *status, int *mask)
895{
896 if (!acpi_evalf(hkey_handle, status, "DHKC", "d"))
897 return -EIO;
898
899 if (tp_features.hotkey_mask)
900 if (!acpi_evalf(hkey_handle, mask, "DHKN", "d"))
901 return -EIO;
902
903 return 0;
904}
905
906/*
907 * Call with hotkey_mutex held
908 */
909static int hotkey_set(int status, int mask)
910{
911 int i;
912
913 if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", status))
914 return -EIO;
915
916 if (tp_features.hotkey_mask)
917 for (i = 0; i < 32; i++) {
918 int bit = ((1 << i) & mask) != 0;
919 if (!acpi_evalf(hkey_handle,
920 NULL, "MHKM", "vdd", i + 1, bit))
921 return -EIO;
922 }
923
924 return 0;
925}
926
927/* procfs -------------------------------------------------------------- */
928static int hotkey_read(char *p)
929{
930 int res, status, mask;
931 int len = 0;
932
933 if (!tp_features.hotkey) {
934 len += sprintf(p + len, "status:\t\tnot supported\n");
935 return len;
936 }
937
938 res = mutex_lock_interruptible(&hotkey_mutex);
939 if (res < 0)
940 return res;
941 res = hotkey_get(&status, &mask);
942 mutex_unlock(&hotkey_mutex);
943 if (res)
944 return res;
945
946 len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 0));
947 if (tp_features.hotkey_mask) {
948 len += sprintf(p + len, "mask:\t\t0x%04x\n", mask);
949 len += sprintf(p + len,
950 "commands:\tenable, disable, reset, <mask>\n");
951 } else {
952 len += sprintf(p + len, "mask:\t\tnot supported\n");
953 len += sprintf(p + len, "commands:\tenable, disable, reset\n");
954 }
955
956 return len;
957}
958
959static int hotkey_write(char *buf)
960{
961 int res, status, mask;
962 char *cmd;
963 int do_cmd = 0;
964
965 if (!tp_features.hotkey)
966 return -ENODEV;
967
968 res = mutex_lock_interruptible(&hotkey_mutex);
969 if (res < 0)
970 return res;
971
972 res = hotkey_get(&status, &mask);
973 if (res)
974 goto errexit;
975
976 res = 0;
977 while ((cmd = next_cmd(&buf))) {
978 if (strlencmp(cmd, "enable") == 0) {
979 status = 1;
980 } else if (strlencmp(cmd, "disable") == 0) {
981 status = 0;
982 } else if (strlencmp(cmd, "reset") == 0) {
983 status = hotkey_orig_status;
984 mask = hotkey_orig_mask;
985 } else if (sscanf(cmd, "0x%x", &mask) == 1) {
986 /* mask set */
987 } else if (sscanf(cmd, "%x", &mask) == 1) {
988 /* mask set */
989 } else {
990 res = -EINVAL;
991 goto errexit;
992 }
993 do_cmd = 1;
994 }
995
996 if (do_cmd)
997 res = hotkey_set(status, mask);
998
999errexit:
1000 mutex_unlock(&hotkey_mutex);
1001 return res;
1002}
1003
1004static struct tp_acpi_drv_struct ibm_hotkey_acpidriver = {
1005 .hid = IBM_HKEY_HID,
1006 .notify = hotkey_notify,
1007 .handle = &hkey_handle,
1008 .type = ACPI_DEVICE_NOTIFY,
1009};
1010
1011static struct ibm_struct hotkey_driver_data = {
1012 .name = "hotkey",
1013 .read = hotkey_read,
1014 .write = hotkey_write,
1015 .exit = hotkey_exit,
1016 .acpi = &ibm_hotkey_acpidriver,
1017};
1018
1019/*************************************************************************
1020 * Bluetooth subdriver
1021 */
1022
1023/* sysfs bluetooth enable ---------------------------------------------- */
1024static ssize_t bluetooth_enable_show(struct device *dev,
1025 struct device_attribute *attr,
1026 char *buf)
1027{
1028 int status;
1029
1030 status = bluetooth_get_radiosw();
1031 if (status < 0)
1032 return status;
1033
1034 return snprintf(buf, PAGE_SIZE, "%d\n", status ? 1 : 0);
1035}
1036
1037static ssize_t bluetooth_enable_store(struct device *dev,
1038 struct device_attribute *attr,
1039 const char *buf, size_t count)
1040{
1041 unsigned long t;
1042 int res;
1043
1044 if (parse_strtoul(buf, 1, &t))
1045 return -EINVAL;
1046
1047 res = bluetooth_set_radiosw(t);
1048
1049 return (res) ? res : count;
1050}
1051
1052static struct device_attribute dev_attr_bluetooth_enable =
1053 __ATTR(enable, S_IWUSR | S_IRUGO,
1054 bluetooth_enable_show, bluetooth_enable_store);
1055
1056/* --------------------------------------------------------------------- */
1057
1058static struct attribute *bluetooth_attributes[] = {
1059 &dev_attr_bluetooth_enable.attr,
1060 NULL
1061};
1062
1063static const struct attribute_group bluetooth_attr_group = {
1064 .name = TPACPI_BLUETH_SYSFS_GROUP,
1065 .attrs = bluetooth_attributes,
1066};
1067
1068static int __init bluetooth_init(struct ibm_init_struct *iibm)
1069{
1070 int res;
1071 int status = 0;
1072
1073 vdbg_printk(TPACPI_DBG_INIT, "initializing bluetooth subdriver\n");
1074
1075 IBM_ACPIHANDLE_INIT(hkey);
1076
1077 /* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p,
1078 G4x, R30, R31, R40e, R50e, T20-22, X20-21 */
1079 tp_features.bluetooth = hkey_handle &&
1080 acpi_evalf(hkey_handle, &status, "GBDC", "qd");
1081
1082 vdbg_printk(TPACPI_DBG_INIT, "bluetooth is %s, status 0x%02x\n",
1083 str_supported(tp_features.bluetooth),
1084 status);
1085
1086 if (tp_features.bluetooth) {
1087 if (!(status & TP_ACPI_BLUETOOTH_HWPRESENT)) {
1088 /* no bluetooth hardware present in system */
1089 tp_features.bluetooth = 0;
1090 dbg_printk(TPACPI_DBG_INIT,
1091 "bluetooth hardware not installed\n");
1092 } else {
1093 res = sysfs_create_group(&tpacpi_pdev->dev.kobj,
1094 &bluetooth_attr_group);
1095 if (res)
1096 return res;
1097 }
1098 }
1099
1100 return (tp_features.bluetooth)? 0 : 1;
1101}
1102
1103static void bluetooth_exit(void)
1104{
1105 sysfs_remove_group(&tpacpi_pdev->dev.kobj,
1106 &bluetooth_attr_group);
1107}
1108
1109static int bluetooth_get_radiosw(void)
1110{
1111 int status;
1112
1113 if (!tp_features.bluetooth)
1114 return -ENODEV;
1115
1116 if (!acpi_evalf(hkey_handle, &status, "GBDC", "d"))
1117 return -EIO;
1118
1119 return ((status & TP_ACPI_BLUETOOTH_RADIOSSW) != 0);
1120}
1121
1122static int bluetooth_set_radiosw(int radio_on)
1123{
1124 int status;
1125
1126 if (!tp_features.bluetooth)
1127 return -ENODEV;
1128
1129 if (!acpi_evalf(hkey_handle, &status, "GBDC", "d"))
1130 return -EIO;
1131 if (radio_on)
1132 status |= TP_ACPI_BLUETOOTH_RADIOSSW;
1133 else
1134 status &= ~TP_ACPI_BLUETOOTH_RADIOSSW;
1135 if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status))
1136 return -EIO;
1137
1138 return 0;
1139}
1140
1141/* procfs -------------------------------------------------------------- */
1142static int bluetooth_read(char *p)
1143{
1144 int len = 0;
1145 int status = bluetooth_get_radiosw();
1146
1147 if (!tp_features.bluetooth)
1148 len += sprintf(p + len, "status:\t\tnot supported\n");
1149 else {
1150 len += sprintf(p + len, "status:\t\t%s\n",
1151 (status)? "enabled" : "disabled");
1152 len += sprintf(p + len, "commands:\tenable, disable\n");
1153 }
1154
1155 return len;
1156}
1157
1158static int bluetooth_write(char *buf)
1159{
1160 char *cmd;
1161
1162 if (!tp_features.bluetooth)
1163 return -ENODEV;
1164
1165 while ((cmd = next_cmd(&buf))) {
1166 if (strlencmp(cmd, "enable") == 0) {
1167 bluetooth_set_radiosw(1);
1168 } else if (strlencmp(cmd, "disable") == 0) {
1169 bluetooth_set_radiosw(0);
1170 } else
1171 return -EINVAL;
1172 }
1173
1174 return 0;
1175}
1176
1177static struct ibm_struct bluetooth_driver_data = {
1178 .name = "bluetooth",
1179 .read = bluetooth_read,
1180 .write = bluetooth_write,
1181 .exit = bluetooth_exit,
1182};
1183
1184/*************************************************************************
1185 * Wan subdriver
1186 */
1187
1188/* sysfs wan enable ---------------------------------------------------- */
1189static ssize_t wan_enable_show(struct device *dev,
1190 struct device_attribute *attr,
1191 char *buf)
1192{
1193 int status;
1194
1195 status = wan_get_radiosw();
1196 if (status < 0)
1197 return status;
1198
1199 return snprintf(buf, PAGE_SIZE, "%d\n", status ? 1 : 0);
1200}
1201
1202static ssize_t wan_enable_store(struct device *dev,
1203 struct device_attribute *attr,
1204 const char *buf, size_t count)
1205{
1206 unsigned long t;
1207 int res;
1208
1209 if (parse_strtoul(buf, 1, &t))
1210 return -EINVAL;
1211
1212 res = wan_set_radiosw(t);
1213
1214 return (res) ? res : count;
1215}
1216
1217static struct device_attribute dev_attr_wan_enable =
1218 __ATTR(enable, S_IWUSR | S_IRUGO,
1219 wan_enable_show, wan_enable_store);
1220
1221/* --------------------------------------------------------------------- */
1222
1223static struct attribute *wan_attributes[] = {
1224 &dev_attr_wan_enable.attr,
1225 NULL
1226};
1227
1228static const struct attribute_group wan_attr_group = {
1229 .name = TPACPI_WAN_SYSFS_GROUP,
1230 .attrs = wan_attributes,
1231};
1232
1233static int __init wan_init(struct ibm_init_struct *iibm)
1234{
1235 int res;
1236 int status = 0;
1237
1238 vdbg_printk(TPACPI_DBG_INIT, "initializing wan subdriver\n");
1239
1240 IBM_ACPIHANDLE_INIT(hkey);
1241
1242 tp_features.wan = hkey_handle &&
1243 acpi_evalf(hkey_handle, &status, "GWAN", "qd");
1244
1245 vdbg_printk(TPACPI_DBG_INIT, "wan is %s, status 0x%02x\n",
1246 str_supported(tp_features.wan),
1247 status);
1248
1249 if (tp_features.wan) {
1250 if (!(status & TP_ACPI_WANCARD_HWPRESENT)) {
1251 /* no wan hardware present in system */
1252 tp_features.wan = 0;
1253 dbg_printk(TPACPI_DBG_INIT,
1254 "wan hardware not installed\n");
1255 } else {
1256 res = sysfs_create_group(&tpacpi_pdev->dev.kobj,
1257 &wan_attr_group);
1258 if (res)
1259 return res;
1260 }
1261 }
1262
1263 return (tp_features.wan)? 0 : 1;
1264}
1265
1266static void wan_exit(void)
1267{
1268 sysfs_remove_group(&tpacpi_pdev->dev.kobj,
1269 &wan_attr_group);
1270}
1271
1272static int wan_get_radiosw(void)
1273{
1274 int status;
1275
1276 if (!tp_features.wan)
1277 return -ENODEV;
1278
1279 if (!acpi_evalf(hkey_handle, &status, "GWAN", "d"))
1280 return -EIO;
1281
1282 return ((status & TP_ACPI_WANCARD_RADIOSSW) != 0);
1283}
1284
1285static int wan_set_radiosw(int radio_on)
1286{
1287 int status;
1288
1289 if (!tp_features.wan)
1290 return -ENODEV;
1291
1292 if (!acpi_evalf(hkey_handle, &status, "GWAN", "d"))
1293 return -EIO;
1294 if (radio_on)
1295 status |= TP_ACPI_WANCARD_RADIOSSW;
1296 else
1297 status &= ~TP_ACPI_WANCARD_RADIOSSW;
1298 if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status))
1299 return -EIO;
1300
1301 return 0;
1302}
1303
1304/* procfs -------------------------------------------------------------- */
1305static int wan_read(char *p)
1306{
1307 int len = 0;
1308 int status = wan_get_radiosw();
1309
1310 if (!tp_features.wan)
1311 len += sprintf(p + len, "status:\t\tnot supported\n");
1312 else {
1313 len += sprintf(p + len, "status:\t\t%s\n",
1314 (status)? "enabled" : "disabled");
1315 len += sprintf(p + len, "commands:\tenable, disable\n");
1316 }
1317
1318 return len;
1319}
1320
1321static int wan_write(char *buf)
1322{
1323 char *cmd;
1324
1325 if (!tp_features.wan)
1326 return -ENODEV;
1327
1328 while ((cmd = next_cmd(&buf))) {
1329 if (strlencmp(cmd, "enable") == 0) {
1330 wan_set_radiosw(1);
1331 } else if (strlencmp(cmd, "disable") == 0) {
1332 wan_set_radiosw(0);
1333 } else
1334 return -EINVAL;
1335 }
1336
1337 return 0;
1338}
1339
1340static struct ibm_struct wan_driver_data = {
1341 .name = "wan",
1342 .read = wan_read,
1343 .write = wan_write,
1344 .exit = wan_exit,
1345 .flags.experimental = 1,
1346};
1347
1348/*************************************************************************
1349 * Video subdriver
1350 */
1351
1352static enum video_access_mode video_supported;
1353static int video_orig_autosw;
1354
1355IBM_HANDLE(vid, root, "\\_SB.PCI.AGP.VGA", /* 570 */
1356 "\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */
1357 "\\_SB.PCI0.VID0", /* 770e */
1358 "\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */
1359 "\\_SB.PCI0.AGP.VID", /* all others */
1360 ); /* R30, R31 */
1361
1362IBM_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */
1363
1364static int __init video_init(struct ibm_init_struct *iibm)
1365{
1366 int ivga;
1367
1368 vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n");
1369
1370 IBM_ACPIHANDLE_INIT(vid);
1371 IBM_ACPIHANDLE_INIT(vid2);
1372
1373 if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga)
1374 /* G41, assume IVGA doesn't change */
1375 vid_handle = vid2_handle;
1376
1377 if (!vid_handle)
1378 /* video switching not supported on R30, R31 */
1379 video_supported = TPACPI_VIDEO_NONE;
1380 else if (acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd"))
1381 /* 570 */
1382 video_supported = TPACPI_VIDEO_570;
1383 else if (acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd"))
1384 /* 600e/x, 770e, 770x */
1385 video_supported = TPACPI_VIDEO_770;
1386 else
1387 /* all others */
1388 video_supported = TPACPI_VIDEO_NEW;
1389
1390 vdbg_printk(TPACPI_DBG_INIT, "video is %s, mode %d\n",
1391 str_supported(video_supported != TPACPI_VIDEO_NONE),
1392 video_supported);
1393
1394 return (video_supported != TPACPI_VIDEO_NONE)? 0 : 1;
1395}
1396
1397static void video_exit(void)
1398{
1399 dbg_printk(TPACPI_DBG_EXIT,
1400 "restoring original video autoswitch mode\n");
1401 if (video_autosw_set(video_orig_autosw))
1402 printk(IBM_ERR "error while trying to restore original "
1403 "video autoswitch mode\n");
1404}
1405
1406static int video_outputsw_get(void)
1407{
1408 int status = 0;
1409 int i;
1410
1411 switch (video_supported) {
1412 case TPACPI_VIDEO_570:
1413 if (!acpi_evalf(NULL, &i, "\\_SB.PHS", "dd",
1414 TP_ACPI_VIDEO_570_PHSCMD))
1415 return -EIO;
1416 status = i & TP_ACPI_VIDEO_570_PHSMASK;
1417 break;
1418 case TPACPI_VIDEO_770:
1419 if (!acpi_evalf(NULL, &i, "\\VCDL", "d"))
1420 return -EIO;
1421 if (i)
1422 status |= TP_ACPI_VIDEO_S_LCD;
1423 if (!acpi_evalf(NULL, &i, "\\VCDC", "d"))
1424 return -EIO;
1425 if (i)
1426 status |= TP_ACPI_VIDEO_S_CRT;
1427 break;
1428 case TPACPI_VIDEO_NEW:
1429 if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1) ||
1430 !acpi_evalf(NULL, &i, "\\VCDC", "d"))
1431 return -EIO;
1432 if (i)
1433 status |= TP_ACPI_VIDEO_S_CRT;
1434
1435 if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0) ||
1436 !acpi_evalf(NULL, &i, "\\VCDL", "d"))
1437 return -EIO;
1438 if (i)
1439 status |= TP_ACPI_VIDEO_S_LCD;
1440 if (!acpi_evalf(NULL, &i, "\\VCDD", "d"))
1441 return -EIO;
1442 if (i)
1443 status |= TP_ACPI_VIDEO_S_DVI;
1444 break;
1445 default:
1446 return -ENOSYS;
1447 }
1448
1449 return status;
1450}
1451
1452static int video_outputsw_set(int status)
1453{
1454 int autosw;
1455 int res = 0;
1456
1457 switch (video_supported) {
1458 case TPACPI_VIDEO_570:
1459 res = acpi_evalf(NULL, NULL,
1460 "\\_SB.PHS2", "vdd",
1461 TP_ACPI_VIDEO_570_PHS2CMD,
1462 status | TP_ACPI_VIDEO_570_PHS2SET);
1463 break;
1464 case TPACPI_VIDEO_770:
1465 autosw = video_autosw_get();
1466 if (autosw < 0)
1467 return autosw;
1468
1469 res = video_autosw_set(1);
1470 if (res)
1471 return res;
1472 res = acpi_evalf(vid_handle, NULL,
1473 "ASWT", "vdd", status * 0x100, 0);
1474 if (!autosw && video_autosw_set(autosw)) {
1475 printk(IBM_ERR "video auto-switch left enabled due to error\n");
1476 return -EIO;
1477 }
1478 break;
1479 case TPACPI_VIDEO_NEW:
1480 res = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) &&
1481 acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1);
1482 break;
1483 default:
1484 return -ENOSYS;
1485 }
1486
1487 return (res)? 0 : -EIO;
1488}
1489
1490static int video_autosw_get(void)
1491{
1492 int autosw = 0;
1493
1494 switch (video_supported) {
1495 case TPACPI_VIDEO_570:
1496 if (!acpi_evalf(vid_handle, &autosw, "SWIT", "d"))
1497 return -EIO;
1498 break;
1499 case TPACPI_VIDEO_770:
1500 case TPACPI_VIDEO_NEW:
1501 if (!acpi_evalf(vid_handle, &autosw, "^VDEE", "d"))
1502 return -EIO;
1503 break;
1504 default:
1505 return -ENOSYS;
1506 }
1507
1508 return autosw & 1;
1509}
1510
1511static int video_autosw_set(int enable)
1512{
1513 if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", (enable)? 1 : 0))
1514 return -EIO;
1515 return 0;
1516}
1517
1518static int video_outputsw_cycle(void)
1519{
1520 int autosw = video_autosw_get();
1521 int res;
1522
1523 if (autosw < 0)
1524 return autosw;
1525
1526 switch (video_supported) {
1527 case TPACPI_VIDEO_570:
1528 res = video_autosw_set(1);
1529 if (res)
1530 return res;
1531 res = acpi_evalf(ec_handle, NULL, "_Q16", "v");
1532 break;
1533 case TPACPI_VIDEO_770:
1534 case TPACPI_VIDEO_NEW:
1535 res = video_autosw_set(1);
1536 if (res)
1537 return res;
1538 res = acpi_evalf(vid_handle, NULL, "VSWT", "v");
1539 break;
1540 default:
1541 return -ENOSYS;
1542 }
1543 if (!autosw && video_autosw_set(autosw)) {
1544 printk(IBM_ERR "video auto-switch left enabled due to error\n");
1545 return -EIO;
1546 }
1547
1548 return (res)? 0 : -EIO;
1549}
1550
1551static int video_expand_toggle(void)
1552{
1553 switch (video_supported) {
1554 case TPACPI_VIDEO_570:
1555 return acpi_evalf(ec_handle, NULL, "_Q17", "v")?
1556 0 : -EIO;
1557 case TPACPI_VIDEO_770:
1558 return acpi_evalf(vid_handle, NULL, "VEXP", "v")?
1559 0 : -EIO;
1560 case TPACPI_VIDEO_NEW:
1561 return acpi_evalf(NULL, NULL, "\\VEXP", "v")?
1562 0 : -EIO;
1563 default:
1564 return -ENOSYS;
1565 }
1566 /* not reached */
1567}
1568
1569static int video_read(char *p)
1570{
1571 int status, autosw;
1572 int len = 0;
1573
1574 if (video_supported == TPACPI_VIDEO_NONE) {
1575 len += sprintf(p + len, "status:\t\tnot supported\n");
1576 return len;
1577 }
1578
1579 status = video_outputsw_get();
1580 if (status < 0)
1581 return status;
1582
1583 autosw = video_autosw_get();
1584 if (autosw < 0)
1585 return autosw;
1586
1587 len += sprintf(p + len, "status:\t\tsupported\n");
1588 len += sprintf(p + len, "lcd:\t\t%s\n", enabled(status, 0));
1589 len += sprintf(p + len, "crt:\t\t%s\n", enabled(status, 1));
1590 if (video_supported == TPACPI_VIDEO_NEW)
1591 len += sprintf(p + len, "dvi:\t\t%s\n", enabled(status, 3));
1592 len += sprintf(p + len, "auto:\t\t%s\n", enabled(autosw, 0));
1593 len += sprintf(p + len, "commands:\tlcd_enable, lcd_disable\n");
1594 len += sprintf(p + len, "commands:\tcrt_enable, crt_disable\n");
1595 if (video_supported == TPACPI_VIDEO_NEW)
1596 len += sprintf(p + len, "commands:\tdvi_enable, dvi_disable\n");
1597 len += sprintf(p + len, "commands:\tauto_enable, auto_disable\n");
1598 len += sprintf(p + len, "commands:\tvideo_switch, expand_toggle\n");
1599
1600 return len;
1601}
1602
1603static int video_write(char *buf)
1604{
1605 char *cmd;
1606 int enable, disable, status;
1607 int res;
1608
1609 if (video_supported == TPACPI_VIDEO_NONE)
1610 return -ENODEV;
1611
1612 enable = 0;
1613 disable = 0;
1614
1615 while ((cmd = next_cmd(&buf))) {
1616 if (strlencmp(cmd, "lcd_enable") == 0) {
1617 enable |= TP_ACPI_VIDEO_S_LCD;
1618 } else if (strlencmp(cmd, "lcd_disable") == 0) {
1619 disable |= TP_ACPI_VIDEO_S_LCD;
1620 } else if (strlencmp(cmd, "crt_enable") == 0) {
1621 enable |= TP_ACPI_VIDEO_S_CRT;
1622 } else if (strlencmp(cmd, "crt_disable") == 0) {
1623 disable |= TP_ACPI_VIDEO_S_CRT;
1624 } else if (video_supported == TPACPI_VIDEO_NEW &&
1625 strlencmp(cmd, "dvi_enable") == 0) {
1626 enable |= TP_ACPI_VIDEO_S_DVI;
1627 } else if (video_supported == TPACPI_VIDEO_NEW &&
1628 strlencmp(cmd, "dvi_disable") == 0) {
1629 disable |= TP_ACPI_VIDEO_S_DVI;
1630 } else if (strlencmp(cmd, "auto_enable") == 0) {
1631 res = video_autosw_set(1);
1632 if (res)
1633 return res;
1634 } else if (strlencmp(cmd, "auto_disable") == 0) {
1635 res = video_autosw_set(0);
1636 if (res)
1637 return res;
1638 } else if (strlencmp(cmd, "video_switch") == 0) {
1639 res = video_outputsw_cycle();
1640 if (res)
1641 return res;
1642 } else if (strlencmp(cmd, "expand_toggle") == 0) {
1643 res = video_expand_toggle();
1644 if (res)
1645 return res;
1646 } else
1647 return -EINVAL;
1648 }
1649
1650 if (enable || disable) {
1651 status = video_outputsw_get();
1652 if (status < 0)
1653 return status;
1654 res = video_outputsw_set((status & ~disable) | enable);
1655 if (res)
1656 return res;
1657 }
1658
1659 return 0;
1660}
1661
1662static struct ibm_struct video_driver_data = {
1663 .name = "video",
1664 .read = video_read,
1665 .write = video_write,
1666 .exit = video_exit,
1667};
1668
1669/*************************************************************************
1670 * Light (thinklight) subdriver
1671 */
1672
1673IBM_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */
1674IBM_HANDLE(ledb, ec, "LEDB"); /* G4x */
1675
1676static int __init light_init(struct ibm_init_struct *iibm)
1677{
1678 vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n");
1679
1680 IBM_ACPIHANDLE_INIT(ledb);
1681 IBM_ACPIHANDLE_INIT(lght);
1682 IBM_ACPIHANDLE_INIT(cmos);
1683
1684 /* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */
1685 tp_features.light = (cmos_handle || lght_handle) && !ledb_handle;
1686
1687 if (tp_features.light)
1688 /* light status not supported on
1689 570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */
1690 tp_features.light_status =
1691 acpi_evalf(ec_handle, NULL, "KBLT", "qv");
1692
1693 vdbg_printk(TPACPI_DBG_INIT, "light is %s\n",
1694 str_supported(tp_features.light));
1695
1696 return (tp_features.light)? 0 : 1;
1697}
1698
1699static int light_read(char *p)
1700{
1701 int len = 0;
1702 int status = 0;
1703
1704 if (!tp_features.light) {
1705 len += sprintf(p + len, "status:\t\tnot supported\n");
1706 } else if (!tp_features.light_status) {
1707 len += sprintf(p + len, "status:\t\tunknown\n");
1708 len += sprintf(p + len, "commands:\ton, off\n");
1709 } else {
1710 if (!acpi_evalf(ec_handle, &status, "KBLT", "d"))
1711 return -EIO;
1712 len += sprintf(p + len, "status:\t\t%s\n", onoff(status, 0));
1713 len += sprintf(p + len, "commands:\ton, off\n");
1714 }
1715
1716 return len;
1717}
1718
1719static int light_write(char *buf)
1720{
1721 int cmos_cmd, lght_cmd;
1722 char *cmd;
1723 int success;
1724
1725 if (!tp_features.light)
1726 return -ENODEV;
1727
1728 while ((cmd = next_cmd(&buf))) {
1729 if (strlencmp(cmd, "on") == 0) {
1730 cmos_cmd = 0x0c;
1731 lght_cmd = 1;
1732 } else if (strlencmp(cmd, "off") == 0) {
1733 cmos_cmd = 0x0d;
1734 lght_cmd = 0;
1735 } else
1736 return -EINVAL;
1737
1738 success = cmos_handle ?
1739 acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd) :
1740 acpi_evalf(lght_handle, NULL, NULL, "vd", lght_cmd);
1741 if (!success)
1742 return -EIO;
1743 }
1744
1745 return 0;
1746}
1747
1748static struct ibm_struct light_driver_data = {
1749 .name = "light",
1750 .read = light_read,
1751 .write = light_write,
1752};
1753
1754/*************************************************************************
1755 * Dock subdriver
1756 */
1757
1758#ifdef CONFIG_THINKPAD_ACPI_DOCK
1759
1760IBM_HANDLE(dock, root, "\\_SB.GDCK", /* X30, X31, X40 */
1761 "\\_SB.PCI0.DOCK", /* 600e/x,770e,770x,A2xm/p,T20-22,X20-21 */
1762 "\\_SB.PCI0.PCI1.DOCK", /* all others */
1763 "\\_SB.PCI.ISA.SLCE", /* 570 */
1764 ); /* A21e,G4x,R30,R31,R32,R40,R40e,R50e */
1765
1766/* don't list other alternatives as we install a notify handler on the 570 */
1767IBM_HANDLE(pci, root, "\\_SB.PCI"); /* 570 */
1768
1769static struct tp_acpi_drv_struct ibm_dock_acpidriver[2] = {
1770 {
1771 .notify = dock_notify,
1772 .handle = &dock_handle,
1773 .type = ACPI_SYSTEM_NOTIFY,
1774 },
1775 {
1776 .hid = IBM_PCI_HID,
1777 .notify = dock_notify,
1778 .handle = &pci_handle,
1779 .type = ACPI_SYSTEM_NOTIFY,
1780 },
1781};
1782
1783static struct ibm_struct dock_driver_data[2] = {
1784 {
1785 .name = "dock",
1786 .read = dock_read,
1787 .write = dock_write,
1788 .acpi = &ibm_dock_acpidriver[0],
1789 },
1790 {
1791 .name = "dock",
1792 .acpi = &ibm_dock_acpidriver[1],
1793 },
1794};
1795
1796#define dock_docked() (_sta(dock_handle) & 1)
1797
1798static int __init dock_init(struct ibm_init_struct *iibm)
1799{
1800 vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver\n");
1801
1802 IBM_ACPIHANDLE_INIT(dock);
1803
1804 vdbg_printk(TPACPI_DBG_INIT, "dock is %s\n",
1805 str_supported(dock_handle != NULL));
1806
1807 return (dock_handle)? 0 : 1;
1808}
1809
1810static int __init dock_init2(struct ibm_init_struct *iibm)
1811{
1812 int dock2_needed;
1813
1814 vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver part 2\n");
1815
1816 if (dock_driver_data[0].flags.acpi_driver_registered &&
1817 dock_driver_data[0].flags.acpi_notify_installed) {
1818 IBM_ACPIHANDLE_INIT(pci);
1819 dock2_needed = (pci_handle != NULL);
1820 vdbg_printk(TPACPI_DBG_INIT,
1821 "dock PCI handler for the TP 570 is %s\n",
1822 str_supported(dock2_needed));
1823 } else {
1824 vdbg_printk(TPACPI_DBG_INIT,
1825 "dock subdriver part 2 not required\n");
1826 dock2_needed = 0;
1827 }
1828
1829 return (dock2_needed)? 0 : 1;
1830}
1831
1832static void dock_notify(struct ibm_struct *ibm, u32 event)
1833{
1834 int docked = dock_docked();
1835 int pci = ibm->acpi->hid && strstr(ibm->acpi->hid, IBM_PCI_HID);
1836
1837 if (event == 1 && !pci) /* 570 */
1838 acpi_bus_generate_event(ibm->acpi->device, event, 1); /* button */
1839 else if (event == 1 && pci) /* 570 */
1840 acpi_bus_generate_event(ibm->acpi->device, event, 3); /* dock */
1841 else if (event == 3 && docked)
1842 acpi_bus_generate_event(ibm->acpi->device, event, 1); /* button */
1843 else if (event == 3 && !docked)
1844 acpi_bus_generate_event(ibm->acpi->device, event, 2); /* undock */
1845 else if (event == 0 && docked)
1846 acpi_bus_generate_event(ibm->acpi->device, event, 3); /* dock */
1847 else {
1848 printk(IBM_ERR "unknown dock event %d, status %d\n",
1849 event, _sta(dock_handle));
1850 acpi_bus_generate_event(ibm->acpi->device, event, 0); /* unknown */
1851 }
1852}
1853
1854static int dock_read(char *p)
1855{
1856 int len = 0;
1857 int docked = dock_docked();
1858
1859 if (!dock_handle)
1860 len += sprintf(p + len, "status:\t\tnot supported\n");
1861 else if (!docked)
1862 len += sprintf(p + len, "status:\t\tundocked\n");
1863 else {
1864 len += sprintf(p + len, "status:\t\tdocked\n");
1865 len += sprintf(p + len, "commands:\tdock, undock\n");
1866 }
1867
1868 return len;
1869}
1870
1871static int dock_write(char *buf)
1872{
1873 char *cmd;
1874
1875 if (!dock_docked())
1876 return -ENODEV;
1877
1878 while ((cmd = next_cmd(&buf))) {
1879 if (strlencmp(cmd, "undock") == 0) {
1880 if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 0) ||
1881 !acpi_evalf(dock_handle, NULL, "_EJ0", "vd", 1))
1882 return -EIO;
1883 } else if (strlencmp(cmd, "dock") == 0) {
1884 if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 1))
1885 return -EIO;
1886 } else
1887 return -EINVAL;
1888 }
1889
1890 return 0;
1891}
1892
1893#endif /* CONFIG_THINKPAD_ACPI_DOCK */
1894
1895/*************************************************************************
1896 * Bay subdriver
1897 */
1898
1899#ifdef CONFIG_THINKPAD_ACPI_BAY
1900IBM_HANDLE(bay, root, "\\_SB.PCI.IDE.SECN.MAST", /* 570 */
1901 "\\_SB.PCI0.IDE0.IDES.IDSM", /* 600e/x, 770e, 770x */
1902 "\\_SB.PCI0.SATA.SCND.MSTR", /* T60, X60, Z60 */
1903 "\\_SB.PCI0.IDE0.SCND.MSTR", /* all others */
1904 ); /* A21e, R30, R31 */
1905IBM_HANDLE(bay_ej, bay, "_EJ3", /* 600e/x, A2xm/p, A3x */
1906 "_EJ0", /* all others */
1907 ); /* 570,A21e,G4x,R30,R31,R32,R40e,R50e */
1908IBM_HANDLE(bay2, root, "\\_SB.PCI0.IDE0.PRIM.SLAV", /* A3x, R32 */
1909 "\\_SB.PCI0.IDE0.IDEP.IDPS", /* 600e/x, 770e, 770x */
1910 ); /* all others */
1911IBM_HANDLE(bay2_ej, bay2, "_EJ3", /* 600e/x, 770e, A3x */
1912 "_EJ0", /* 770x */
1913 ); /* all others */
1914
1915static int __init bay_init(struct ibm_init_struct *iibm)
1916{
1917 vdbg_printk(TPACPI_DBG_INIT, "initializing bay subdriver\n");
1918
1919 IBM_ACPIHANDLE_INIT(bay);
1920 if (bay_handle)
1921 IBM_ACPIHANDLE_INIT(bay_ej);
1922 IBM_ACPIHANDLE_INIT(bay2);
1923 if (bay2_handle)
1924 IBM_ACPIHANDLE_INIT(bay2_ej);
1925
1926 tp_features.bay_status = bay_handle &&
1927 acpi_evalf(bay_handle, NULL, "_STA", "qv");
1928 tp_features.bay_status2 = bay2_handle &&
1929 acpi_evalf(bay2_handle, NULL, "_STA", "qv");
1930
1931 tp_features.bay_eject = bay_handle && bay_ej_handle &&
1932 (strlencmp(bay_ej_path, "_EJ0") == 0 || experimental);
1933 tp_features.bay_eject2 = bay2_handle && bay2_ej_handle &&
1934 (strlencmp(bay2_ej_path, "_EJ0") == 0 || experimental);
1935
1936 vdbg_printk(TPACPI_DBG_INIT,
1937 "bay 1: status %s, eject %s; bay 2: status %s, eject %s\n",
1938 str_supported(tp_features.bay_status),
1939 str_supported(tp_features.bay_eject),
1940 str_supported(tp_features.bay_status2),
1941 str_supported(tp_features.bay_eject2));
1942
1943 return (tp_features.bay_status || tp_features.bay_eject ||
1944 tp_features.bay_status2 || tp_features.bay_eject2)? 0 : 1;
1945}
1946
1947static void bay_notify(struct ibm_struct *ibm, u32 event)
1948{
1949 acpi_bus_generate_event(ibm->acpi->device, event, 0);
1950}
1951
1952#define bay_occupied(b) (_sta(b##_handle) & 1)
1953
1954static int bay_read(char *p)
1955{
1956 int len = 0;
1957 int occupied = bay_occupied(bay);
1958 int occupied2 = bay_occupied(bay2);
1959 int eject, eject2;
1960
1961 len += sprintf(p + len, "status:\t\t%s\n",
1962 tp_features.bay_status ?
1963 (occupied ? "occupied" : "unoccupied") :
1964 "not supported");
1965 if (tp_features.bay_status2)
1966 len += sprintf(p + len, "status2:\t%s\n", occupied2 ?
1967 "occupied" : "unoccupied");
1968
1969 eject = tp_features.bay_eject && occupied;
1970 eject2 = tp_features.bay_eject2 && occupied2;
1971
1972 if (eject && eject2)
1973 len += sprintf(p + len, "commands:\teject, eject2\n");
1974 else if (eject)
1975 len += sprintf(p + len, "commands:\teject\n");
1976 else if (eject2)
1977 len += sprintf(p + len, "commands:\teject2\n");
1978
1979 return len;
1980}
1981
1982static int bay_write(char *buf)
1983{
1984 char *cmd;
1985
1986 if (!tp_features.bay_eject && !tp_features.bay_eject2)
1987 return -ENODEV;
1988
1989 while ((cmd = next_cmd(&buf))) {
1990 if (tp_features.bay_eject && strlencmp(cmd, "eject") == 0) {
1991 if (!acpi_evalf(bay_ej_handle, NULL, NULL, "vd", 1))
1992 return -EIO;
1993 } else if (tp_features.bay_eject2 &&
1994 strlencmp(cmd, "eject2") == 0) {
1995 if (!acpi_evalf(bay2_ej_handle, NULL, NULL, "vd", 1))
1996 return -EIO;
1997 } else
1998 return -EINVAL;
1999 }
2000
2001 return 0;
2002}
2003
2004static struct tp_acpi_drv_struct ibm_bay_acpidriver = {
2005 .notify = bay_notify,
2006 .handle = &bay_handle,
2007 .type = ACPI_SYSTEM_NOTIFY,
2008};
2009
2010static struct ibm_struct bay_driver_data = {
2011 .name = "bay",
2012 .read = bay_read,
2013 .write = bay_write,
2014 .acpi = &ibm_bay_acpidriver,
2015};
2016
2017#endif /* CONFIG_THINKPAD_ACPI_BAY */
2018
2019/*************************************************************************
2020 * CMOS subdriver
2021 */
2022
2023/* sysfs cmos_command -------------------------------------------------- */
2024static ssize_t cmos_command_store(struct device *dev,
2025 struct device_attribute *attr,
2026 const char *buf, size_t count)
2027{
2028 unsigned long cmos_cmd;
2029 int res;
2030
2031 if (parse_strtoul(buf, 21, &cmos_cmd))
2032 return -EINVAL;
2033
2034 res = issue_thinkpad_cmos_command(cmos_cmd);
2035 return (res)? res : count;
2036}
2037
2038static struct device_attribute dev_attr_cmos_command =
2039 __ATTR(cmos_command, S_IWUSR, NULL, cmos_command_store);
2040
2041/* --------------------------------------------------------------------- */
2042
2043static int __init cmos_init(struct ibm_init_struct *iibm)
2044{
2045 int res;
2046
2047 vdbg_printk(TPACPI_DBG_INIT,
2048 "initializing cmos commands subdriver\n");
2049
2050 IBM_ACPIHANDLE_INIT(cmos);
2051
2052 vdbg_printk(TPACPI_DBG_INIT, "cmos commands are %s\n",
2053 str_supported(cmos_handle != NULL));
2054
2055 res = device_create_file(&tpacpi_pdev->dev, &dev_attr_cmos_command);
2056 if (res)
2057 return res;
2058
2059 return (cmos_handle)? 0 : 1;
2060}
2061
2062static void cmos_exit(void)
2063{
2064 device_remove_file(&tpacpi_pdev->dev, &dev_attr_cmos_command);
2065}
2066
2067static int cmos_read(char *p)
2068{
2069 int len = 0;
2070
2071 /* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p,
2072 R30, R31, T20-22, X20-21 */
2073 if (!cmos_handle)
2074 len += sprintf(p + len, "status:\t\tnot supported\n");
2075 else {
2076 len += sprintf(p + len, "status:\t\tsupported\n");
2077 len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-21)\n");
2078 }
2079
2080 return len;
2081}
2082
2083static int cmos_write(char *buf)
2084{
2085 char *cmd;
2086 int cmos_cmd, res;
2087
2088 while ((cmd = next_cmd(&buf))) {
2089 if (sscanf(cmd, "%u", &cmos_cmd) == 1 &&
2090 cmos_cmd >= 0 && cmos_cmd <= 21) {
2091 /* cmos_cmd set */
2092 } else
2093 return -EINVAL;
2094
2095 res = issue_thinkpad_cmos_command(cmos_cmd);
2096 if (res)
2097 return res;
2098 }
2099
2100 return 0;
2101}
2102
2103static struct ibm_struct cmos_driver_data = {
2104 .name = "cmos",
2105 .read = cmos_read,
2106 .write = cmos_write,
2107 .exit = cmos_exit,
2108};
2109
2110/*************************************************************************
2111 * LED subdriver
2112 */
2113
2114static enum led_access_mode led_supported;
2115
2116IBM_HANDLE(led, ec, "SLED", /* 570 */
2117 "SYSL", /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */
2118 "LED", /* all others */
2119 ); /* R30, R31 */
2120
2121static int __init led_init(struct ibm_init_struct *iibm)
2122{
2123 vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n");
2124
2125 IBM_ACPIHANDLE_INIT(led);
2126
2127 if (!led_handle)
2128 /* led not supported on R30, R31 */
2129 led_supported = TPACPI_LED_NONE;
2130 else if (strlencmp(led_path, "SLED") == 0)
2131 /* 570 */
2132 led_supported = TPACPI_LED_570;
2133 else if (strlencmp(led_path, "SYSL") == 0)
2134 /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */
2135 led_supported = TPACPI_LED_OLD;
2136 else
2137 /* all others */
2138 led_supported = TPACPI_LED_NEW;
2139
2140 vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n",
2141 str_supported(led_supported), led_supported);
2142
2143 return (led_supported != TPACPI_LED_NONE)? 0 : 1;
2144}
2145
2146#define led_status(s) ((s) == 0 ? "off" : ((s) == 1 ? "on" : "blinking"))
2147
2148static int led_read(char *p)
2149{
2150 int len = 0;
2151
2152 if (!led_supported) {
2153 len += sprintf(p + len, "status:\t\tnot supported\n");
2154 return len;
2155 }
2156 len += sprintf(p + len, "status:\t\tsupported\n");
2157
2158 if (led_supported == TPACPI_LED_570) {
2159 /* 570 */
2160 int i, status;
2161 for (i = 0; i < 8; i++) {
2162 if (!acpi_evalf(ec_handle,
2163 &status, "GLED", "dd", 1 << i))
2164 return -EIO;
2165 len += sprintf(p + len, "%d:\t\t%s\n",
2166 i, led_status(status));
2167 }
2168 }
2169
2170 len += sprintf(p + len, "commands:\t"
2171 "<led> on, <led> off, <led> blink (<led> is 0-7)\n");
2172
2173 return len;
2174}
2175
2176/* off, on, blink */
2177static const int led_sled_arg1[] = { 0, 1, 3 };
2178static const int led_exp_hlbl[] = { 0, 0, 1 }; /* led# * */
2179static const int led_exp_hlcl[] = { 0, 1, 1 }; /* led# * */
2180static const int led_led_arg1[] = { 0, 0x80, 0xc0 };
2181
2182static int led_write(char *buf)
2183{
2184 char *cmd;
2185 int led, ind, ret;
2186
2187 if (!led_supported)
2188 return -ENODEV;
2189
2190 while ((cmd = next_cmd(&buf))) {
2191 if (sscanf(cmd, "%d", &led) != 1 || led < 0 || led > 7)
2192 return -EINVAL;
2193
2194 if (strstr(cmd, "off")) {
2195 ind = 0;
2196 } else if (strstr(cmd, "on")) {
2197 ind = 1;
2198 } else if (strstr(cmd, "blink")) {
2199 ind = 2;
2200 } else
2201 return -EINVAL;
2202
2203 if (led_supported == TPACPI_LED_570) {
2204 /* 570 */
2205 led = 1 << led;
2206 if (!acpi_evalf(led_handle, NULL, NULL, "vdd",
2207 led, led_sled_arg1[ind]))
2208 return -EIO;
2209 } else if (led_supported == TPACPI_LED_OLD) {
2210 /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */
2211 led = 1 << led;
2212 ret = ec_write(TPACPI_LED_EC_HLMS, led);
2213 if (ret >= 0)
2214 ret =
2215 ec_write(TPACPI_LED_EC_HLBL,
2216 led * led_exp_hlbl[ind]);
2217 if (ret >= 0)
2218 ret =
2219 ec_write(TPACPI_LED_EC_HLCL,
2220 led * led_exp_hlcl[ind]);
2221 if (ret < 0)
2222 return ret;
2223 } else {
2224 /* all others */
2225 if (!acpi_evalf(led_handle, NULL, NULL, "vdd",
2226 led, led_led_arg1[ind]))
2227 return -EIO;
2228 }
2229 }
2230
2231 return 0;
2232}
2233
2234static struct ibm_struct led_driver_data = {
2235 .name = "led",
2236 .read = led_read,
2237 .write = led_write,
2238};
2239
2240/*************************************************************************
2241 * Beep subdriver
2242 */
2243
2244IBM_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */
2245
2246static int __init beep_init(struct ibm_init_struct *iibm)
2247{
2248 vdbg_printk(TPACPI_DBG_INIT, "initializing beep subdriver\n");
2249
2250 IBM_ACPIHANDLE_INIT(beep);
2251
2252 vdbg_printk(TPACPI_DBG_INIT, "beep is %s\n",
2253 str_supported(beep_handle != NULL));
2254
2255 return (beep_handle)? 0 : 1;
2256}
2257
2258static int beep_read(char *p)
2259{
2260 int len = 0;
2261
2262 if (!beep_handle)
2263 len += sprintf(p + len, "status:\t\tnot supported\n");
2264 else {
2265 len += sprintf(p + len, "status:\t\tsupported\n");
2266 len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-17)\n");
2267 }
2268
2269 return len;
2270}
2271
2272static int beep_write(char *buf)
2273{
2274 char *cmd;
2275 int beep_cmd;
2276
2277 if (!beep_handle)
2278 return -ENODEV;
2279
2280 while ((cmd = next_cmd(&buf))) {
2281 if (sscanf(cmd, "%u", &beep_cmd) == 1 &&
2282 beep_cmd >= 0 && beep_cmd <= 17) {
2283 /* beep_cmd set */
2284 } else
2285 return -EINVAL;
2286 if (!acpi_evalf(beep_handle, NULL, NULL, "vdd", beep_cmd, 0))
2287 return -EIO;
2288 }
2289
2290 return 0;
2291}
2292
2293static struct ibm_struct beep_driver_data = {
2294 .name = "beep",
2295 .read = beep_read,
2296 .write = beep_write,
2297};
2298
2299/*************************************************************************
2300 * Thermal subdriver
2301 */
2302
2303static enum thermal_access_mode thermal_read_mode;
2304
2305/* sysfs temp##_input -------------------------------------------------- */
2306
2307static ssize_t thermal_temp_input_show(struct device *dev,
2308 struct device_attribute *attr,
2309 char *buf)
2310{
2311 struct sensor_device_attribute *sensor_attr =
2312 to_sensor_dev_attr(attr);
2313 int idx = sensor_attr->index;
2314 s32 value;
2315 int res;
2316
2317 res = thermal_get_sensor(idx, &value);
2318 if (res)
2319 return res;
2320 if (value == TP_EC_THERMAL_TMP_NA * 1000)
2321 return -ENXIO;
2322
2323 return snprintf(buf, PAGE_SIZE, "%d\n", value);
2324}
2325
2326#define THERMAL_SENSOR_ATTR_TEMP(_idxA, _idxB) \
2327 SENSOR_ATTR(temp##_idxA##_input, S_IRUGO, thermal_temp_input_show, NULL, _idxB)
2328
2329static struct sensor_device_attribute sensor_dev_attr_thermal_temp_input[] = {
2330 THERMAL_SENSOR_ATTR_TEMP(1, 0),
2331 THERMAL_SENSOR_ATTR_TEMP(2, 1),
2332 THERMAL_SENSOR_ATTR_TEMP(3, 2),
2333 THERMAL_SENSOR_ATTR_TEMP(4, 3),
2334 THERMAL_SENSOR_ATTR_TEMP(5, 4),
2335 THERMAL_SENSOR_ATTR_TEMP(6, 5),
2336 THERMAL_SENSOR_ATTR_TEMP(7, 6),
2337 THERMAL_SENSOR_ATTR_TEMP(8, 7),
2338 THERMAL_SENSOR_ATTR_TEMP(9, 8),
2339 THERMAL_SENSOR_ATTR_TEMP(10, 9),
2340 THERMAL_SENSOR_ATTR_TEMP(11, 10),
2341 THERMAL_SENSOR_ATTR_TEMP(12, 11),
2342 THERMAL_SENSOR_ATTR_TEMP(13, 12),
2343 THERMAL_SENSOR_ATTR_TEMP(14, 13),
2344 THERMAL_SENSOR_ATTR_TEMP(15, 14),
2345 THERMAL_SENSOR_ATTR_TEMP(16, 15),
2346};
2347
2348#define THERMAL_ATTRS(X) \
2349 &sensor_dev_attr_thermal_temp_input[X].dev_attr.attr
2350
2351static struct attribute *thermal_temp_input_attr[] = {
2352 THERMAL_ATTRS(8),
2353 THERMAL_ATTRS(9),
2354 THERMAL_ATTRS(10),
2355 THERMAL_ATTRS(11),
2356 THERMAL_ATTRS(12),
2357 THERMAL_ATTRS(13),
2358 THERMAL_ATTRS(14),
2359 THERMAL_ATTRS(15),
2360 THERMAL_ATTRS(0),
2361 THERMAL_ATTRS(1),
2362 THERMAL_ATTRS(2),
2363 THERMAL_ATTRS(3),
2364 THERMAL_ATTRS(4),
2365 THERMAL_ATTRS(5),
2366 THERMAL_ATTRS(6),
2367 THERMAL_ATTRS(7),
2368 NULL
2369};
2370
2371static const struct attribute_group thermal_temp_input16_group = {
2372 .attrs = thermal_temp_input_attr
2373};
2374
2375static const struct attribute_group thermal_temp_input8_group = {
2376 .attrs = &thermal_temp_input_attr[8]
2377};
2378
2379#undef THERMAL_SENSOR_ATTR_TEMP
2380#undef THERMAL_ATTRS
2381
2382/* --------------------------------------------------------------------- */
2383
2384static int __init thermal_init(struct ibm_init_struct *iibm)
2385{
2386 u8 t, ta1, ta2;
2387 int i;
2388 int acpi_tmp7;
2389 int res;
2390
2391 vdbg_printk(TPACPI_DBG_INIT, "initializing thermal subdriver\n");
2392
2393 acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv");
2394
2395 if (ibm_thinkpad_ec_found && experimental) {
2396 /*
2397 * Direct EC access mode: sensors at registers
2398 * 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for
2399 * non-implemented, thermal sensors return 0x80 when
2400 * not available
2401 */
2402
2403 ta1 = ta2 = 0;
2404 for (i = 0; i < 8; i++) {
2405 if (acpi_ec_read(TP_EC_THERMAL_TMP0 + i, &t)) {
2406 ta1 |= t;
2407 } else {
2408 ta1 = 0;
2409 break;
2410 }
2411 if (acpi_ec_read(TP_EC_THERMAL_TMP8 + i, &t)) {
2412 ta2 |= t;
2413 } else {
2414 ta1 = 0;
2415 break;
2416 }
2417 }
2418 if (ta1 == 0) {
2419 /* This is sheer paranoia, but we handle it anyway */
2420 if (acpi_tmp7) {
2421 printk(IBM_ERR
2422 "ThinkPad ACPI EC access misbehaving, "
2423 "falling back to ACPI TMPx access mode\n");
2424 thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07;
2425 } else {
2426 printk(IBM_ERR
2427 "ThinkPad ACPI EC access misbehaving, "
2428 "disabling thermal sensors access\n");
2429 thermal_read_mode = TPACPI_THERMAL_NONE;
2430 }
2431 } else {
2432 thermal_read_mode =
2433 (ta2 != 0) ?
2434 TPACPI_THERMAL_TPEC_16 : TPACPI_THERMAL_TPEC_8;
2435 }
2436 } else if (acpi_tmp7) {
2437 if (acpi_evalf(ec_handle, NULL, "UPDT", "qv")) {
2438 /* 600e/x, 770e, 770x */
2439 thermal_read_mode = TPACPI_THERMAL_ACPI_UPDT;
2440 } else {
2441 /* Standard ACPI TMPx access, max 8 sensors */
2442 thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07;
2443 }
2444 } else {
2445 /* temperatures not supported on 570, G4x, R30, R31, R32 */
2446 thermal_read_mode = TPACPI_THERMAL_NONE;
2447 }
2448
2449 vdbg_printk(TPACPI_DBG_INIT, "thermal is %s, mode %d\n",
2450 str_supported(thermal_read_mode != TPACPI_THERMAL_NONE),
2451 thermal_read_mode);
2452
2453 switch(thermal_read_mode) {
2454 case TPACPI_THERMAL_TPEC_16:
2455 res = sysfs_create_group(&tpacpi_pdev->dev.kobj,
2456 &thermal_temp_input16_group);
2457 if (res)
2458 return res;
2459 break;
2460 case TPACPI_THERMAL_TPEC_8:
2461 case TPACPI_THERMAL_ACPI_TMP07:
2462 case TPACPI_THERMAL_ACPI_UPDT:
2463 res = sysfs_create_group(&tpacpi_pdev->dev.kobj,
2464 &thermal_temp_input8_group);
2465 if (res)
2466 return res;
2467 break;
2468 case TPACPI_THERMAL_NONE:
2469 default:
2470 return 1;
2471 }
2472
2473 return 0;
2474}
2475
2476static void thermal_exit(void)
2477{
2478 switch(thermal_read_mode) {
2479 case TPACPI_THERMAL_TPEC_16:
2480 sysfs_remove_group(&tpacpi_pdev->dev.kobj,
2481 &thermal_temp_input16_group);
2482 break;
2483 case TPACPI_THERMAL_TPEC_8:
2484 case TPACPI_THERMAL_ACPI_TMP07:
2485 case TPACPI_THERMAL_ACPI_UPDT:
2486 sysfs_remove_group(&tpacpi_pdev->dev.kobj,
2487 &thermal_temp_input16_group);
2488 break;
2489 case TPACPI_THERMAL_NONE:
2490 default:
2491 break;
2492 }
2493}
2494
2495/* idx is zero-based */
2496static int thermal_get_sensor(int idx, s32 *value)
2497{
2498 int t;
2499 s8 tmp;
2500 char tmpi[5];
2501
2502 t = TP_EC_THERMAL_TMP0;
2503
2504 switch (thermal_read_mode) {
2505#if TPACPI_MAX_THERMAL_SENSORS >= 16
2506 case TPACPI_THERMAL_TPEC_16:
2507 if (idx >= 8 && idx <= 15) {
2508 t = TP_EC_THERMAL_TMP8;
2509 idx -= 8;
2510 }
2511 /* fallthrough */
2512#endif
2513 case TPACPI_THERMAL_TPEC_8:
2514 if (idx <= 7) {
2515 if (!acpi_ec_read(t + idx, &tmp))
2516 return -EIO;
2517 *value = tmp * 1000;
2518 return 0;
2519 }
2520 break;
2521
2522 case TPACPI_THERMAL_ACPI_UPDT:
2523 if (idx <= 7) {
2524 snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx);
2525 if (!acpi_evalf(ec_handle, NULL, "UPDT", "v"))
2526 return -EIO;
2527 if (!acpi_evalf(ec_handle, &t, tmpi, "d"))
2528 return -EIO;
2529 *value = (t - 2732) * 100;
2530 return 0;
2531 }
2532 break;
2533
2534 case TPACPI_THERMAL_ACPI_TMP07:
2535 if (idx <= 7) {
2536 snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx);
2537 if (!acpi_evalf(ec_handle, &t, tmpi, "d"))
2538 return -EIO;
2539 *value = t * 1000;
2540 return 0;
2541 }
2542 break;
2543
2544 case TPACPI_THERMAL_NONE:
2545 default:
2546 return -ENOSYS;
2547 }
2548
2549 return -EINVAL;
2550}
2551
2552static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s)
2553{
2554 int res, i;
2555 int n;
2556
2557 n = 8;
2558 i = 0;
2559
2560 if (!s)
2561 return -EINVAL;
2562
2563 if (thermal_read_mode == TPACPI_THERMAL_TPEC_16)
2564 n = 16;
2565
2566 for(i = 0 ; i < n; i++) {
2567 res = thermal_get_sensor(i, &s->temp[i]);
2568 if (res)
2569 return res;
2570 }
2571
2572 return n;
2573}
2574
2575static int thermal_read(char *p)
2576{
2577 int len = 0;
2578 int n, i;
2579 struct ibm_thermal_sensors_struct t;
2580
2581 n = thermal_get_sensors(&t);
2582 if (unlikely(n < 0))
2583 return n;
2584
2585 len += sprintf(p + len, "temperatures:\t");
2586
2587 if (n > 0) {
2588 for (i = 0; i < (n - 1); i++)
2589 len += sprintf(p + len, "%d ", t.temp[i] / 1000);
2590 len += sprintf(p + len, "%d\n", t.temp[i] / 1000);
2591 } else
2592 len += sprintf(p + len, "not supported\n");
2593
2594 return len;
2595}
2596
2597static struct ibm_struct thermal_driver_data = {
2598 .name = "thermal",
2599 .read = thermal_read,
2600 .exit = thermal_exit,
2601};
2602
2603/*************************************************************************
2604 * EC Dump subdriver
2605 */
2606
2607static u8 ecdump_regs[256];
2608
2609static int ecdump_read(char *p)
2610{
2611 int len = 0;
2612 int i, j;
2613 u8 v;
2614
2615 len += sprintf(p + len, "EC "
2616 " +00 +01 +02 +03 +04 +05 +06 +07"
2617 " +08 +09 +0a +0b +0c +0d +0e +0f\n");
2618 for (i = 0; i < 256; i += 16) {
2619 len += sprintf(p + len, "EC 0x%02x:", i);
2620 for (j = 0; j < 16; j++) {
2621 if (!acpi_ec_read(i + j, &v))
2622 break;
2623 if (v != ecdump_regs[i + j])
2624 len += sprintf(p + len, " *%02x", v);
2625 else
2626 len += sprintf(p + len, " %02x", v);
2627 ecdump_regs[i + j] = v;
2628 }
2629 len += sprintf(p + len, "\n");
2630 if (j != 16)
2631 break;
2632 }
2633
2634 /* These are way too dangerous to advertise openly... */
2635#if 0
2636 len += sprintf(p + len, "commands:\t0x<offset> 0x<value>"
2637 " (<offset> is 00-ff, <value> is 00-ff)\n");
2638 len += sprintf(p + len, "commands:\t0x<offset> <value> "
2639 " (<offset> is 00-ff, <value> is 0-255)\n");
2640#endif
2641 return len;
2642}
2643
2644static int ecdump_write(char *buf)
2645{
2646 char *cmd;
2647 int i, v;
2648
2649 while ((cmd = next_cmd(&buf))) {
2650 if (sscanf(cmd, "0x%x 0x%x", &i, &v) == 2) {
2651 /* i and v set */
2652 } else if (sscanf(cmd, "0x%x %u", &i, &v) == 2) {
2653 /* i and v set */
2654 } else
2655 return -EINVAL;
2656 if (i >= 0 && i < 256 && v >= 0 && v < 256) {
2657 if (!acpi_ec_write(i, v))
2658 return -EIO;
2659 } else
2660 return -EINVAL;
2661 }
2662
2663 return 0;
2664}
2665
2666static struct ibm_struct ecdump_driver_data = {
2667 .name = "ecdump",
2668 .read = ecdump_read,
2669 .write = ecdump_write,
2670 .flags.experimental = 1,
2671};
2672
2673/*************************************************************************
2674 * Backlight/brightness subdriver
2675 */
2676
2677static struct backlight_device *ibm_backlight_device = NULL;
2678
2679static struct backlight_ops ibm_backlight_data = {
2680 .get_brightness = brightness_get,
2681 .update_status = brightness_update_status,
2682};
2683
2684static int __init brightness_init(struct ibm_init_struct *iibm)
2685{
2686 int b;
2687
2688 vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n");
2689
2690 b = brightness_get(NULL);
2691 if (b < 0)
2692 return b;
2693
2694 ibm_backlight_device = backlight_device_register(
2695 TPACPI_BACKLIGHT_DEV_NAME, NULL, NULL,
2696 &ibm_backlight_data);
2697 if (IS_ERR(ibm_backlight_device)) {
2698 printk(IBM_ERR "Could not register backlight device\n");
2699 return PTR_ERR(ibm_backlight_device);
2700 }
2701 vdbg_printk(TPACPI_DBG_INIT, "brightness is supported\n");
2702
2703 ibm_backlight_device->props.max_brightness = 7;
2704 ibm_backlight_device->props.brightness = b;
2705 backlight_update_status(ibm_backlight_device);
2706
2707 return 0;
2708}
2709
2710static void brightness_exit(void)
2711{
2712 if (ibm_backlight_device) {
2713 vdbg_printk(TPACPI_DBG_EXIT,
2714 "calling backlight_device_unregister()\n");
2715 backlight_device_unregister(ibm_backlight_device);
2716 ibm_backlight_device = NULL;
2717 }
2718}
2719
2720static int brightness_update_status(struct backlight_device *bd)
2721{
2722 return brightness_set(
2723 (bd->props.fb_blank == FB_BLANK_UNBLANK &&
2724 bd->props.power == FB_BLANK_UNBLANK) ?
2725 bd->props.brightness : 0);
2726}
2727
2728static int brightness_get(struct backlight_device *bd)
2729{
2730 u8 level;
2731 if (!acpi_ec_read(brightness_offset, &level))
2732 return -EIO;
2733
2734 level &= 0x7;
2735
2736 return level;
2737}
2738
2739static int brightness_set(int value)
2740{
2741 int cmos_cmd, inc, i;
2742 int current_value = brightness_get(NULL);
2743
2744 value &= 7;
2745
2746 cmos_cmd = value > current_value ? TP_CMOS_BRIGHTNESS_UP : TP_CMOS_BRIGHTNESS_DOWN;
2747 inc = value > current_value ? 1 : -1;
2748 for (i = current_value; i != value; i += inc) {
2749 if (issue_thinkpad_cmos_command(cmos_cmd))
2750 return -EIO;
2751 if (!acpi_ec_write(brightness_offset, i + inc))
2752 return -EIO;
2753 }
2754
2755 return 0;
2756}
2757
2758static int brightness_read(char *p)
2759{
2760 int len = 0;
2761 int level;
2762
2763 if ((level = brightness_get(NULL)) < 0) {
2764 len += sprintf(p + len, "level:\t\tunreadable\n");
2765 } else {
2766 len += sprintf(p + len, "level:\t\t%d\n", level & 0x7);
2767 len += sprintf(p + len, "commands:\tup, down\n");
2768 len += sprintf(p + len, "commands:\tlevel <level>"
2769 " (<level> is 0-7)\n");
2770 }
2771
2772 return len;
2773}
2774
2775static int brightness_write(char *buf)
2776{
2777 int level;
2778 int new_level;
2779 char *cmd;
2780
2781 while ((cmd = next_cmd(&buf))) {
2782 if ((level = brightness_get(NULL)) < 0)
2783 return level;
2784 level &= 7;
2785
2786 if (strlencmp(cmd, "up") == 0) {
2787 new_level = level == 7 ? 7 : level + 1;
2788 } else if (strlencmp(cmd, "down") == 0) {
2789 new_level = level == 0 ? 0 : level - 1;
2790 } else if (sscanf(cmd, "level %d", &new_level) == 1 &&
2791 new_level >= 0 && new_level <= 7) {
2792 /* new_level set */
2793 } else
2794 return -EINVAL;
2795
2796 brightness_set(new_level);
2797 }
2798
2799 return 0;
2800}
2801
2802static struct ibm_struct brightness_driver_data = {
2803 .name = "brightness",
2804 .read = brightness_read,
2805 .write = brightness_write,
2806 .exit = brightness_exit,
2807};
2808
2809/*************************************************************************
2810 * Volume subdriver
2811 */
2812
2813static int volume_read(char *p)
2814{
2815 int len = 0;
2816 u8 level;
2817
2818 if (!acpi_ec_read(volume_offset, &level)) {
2819 len += sprintf(p + len, "level:\t\tunreadable\n");
2820 } else {
2821 len += sprintf(p + len, "level:\t\t%d\n", level & 0xf);
2822 len += sprintf(p + len, "mute:\t\t%s\n", onoff(level, 6));
2823 len += sprintf(p + len, "commands:\tup, down, mute\n");
2824 len += sprintf(p + len, "commands:\tlevel <level>"
2825 " (<level> is 0-15)\n");
2826 }
2827
2828 return len;
2829}
2830
2831static int volume_write(char *buf)
2832{
2833 int cmos_cmd, inc, i;
2834 u8 level, mute;
2835 int new_level, new_mute;
2836 char *cmd;
2837
2838 while ((cmd = next_cmd(&buf))) {
2839 if (!acpi_ec_read(volume_offset, &level))
2840 return -EIO;
2841 new_mute = mute = level & 0x40;
2842 new_level = level = level & 0xf;
2843
2844 if (strlencmp(cmd, "up") == 0) {
2845 if (mute)
2846 new_mute = 0;
2847 else
2848 new_level = level == 15 ? 15 : level + 1;
2849 } else if (strlencmp(cmd, "down") == 0) {
2850 if (mute)
2851 new_mute = 0;
2852 else
2853 new_level = level == 0 ? 0 : level - 1;
2854 } else if (sscanf(cmd, "level %d", &new_level) == 1 &&
2855 new_level >= 0 && new_level <= 15) {
2856 /* new_level set */
2857 } else if (strlencmp(cmd, "mute") == 0) {
2858 new_mute = 0x40;
2859 } else
2860 return -EINVAL;
2861
2862 if (new_level != level) { /* mute doesn't change */
2863 cmos_cmd = new_level > level ? TP_CMOS_VOLUME_UP : TP_CMOS_VOLUME_DOWN;
2864 inc = new_level > level ? 1 : -1;
2865
2866 if (mute && (issue_thinkpad_cmos_command(cmos_cmd) ||
2867 !acpi_ec_write(volume_offset, level)))
2868 return -EIO;
2869
2870 for (i = level; i != new_level; i += inc)
2871 if (issue_thinkpad_cmos_command(cmos_cmd) ||
2872 !acpi_ec_write(volume_offset, i + inc))
2873 return -EIO;
2874
2875 if (mute && (issue_thinkpad_cmos_command(TP_CMOS_VOLUME_MUTE) ||
2876 !acpi_ec_write(volume_offset,
2877 new_level + mute)))
2878 return -EIO;
2879 }
2880
2881 if (new_mute != mute) { /* level doesn't change */
2882 cmos_cmd = new_mute ? TP_CMOS_VOLUME_MUTE : TP_CMOS_VOLUME_UP;
2883
2884 if (issue_thinkpad_cmos_command(cmos_cmd) ||
2885 !acpi_ec_write(volume_offset, level + new_mute))
2886 return -EIO;
2887 }
2888 }
2889
2890 return 0;
2891}
2892
2893static struct ibm_struct volume_driver_data = {
2894 .name = "volume",
2895 .read = volume_read,
2896 .write = volume_write,
2897};
2898
2899/*************************************************************************
2900 * Fan subdriver
2901 */
2902
2903/*
2904 * FAN ACCESS MODES
2905 *
2906 * TPACPI_FAN_RD_ACPI_GFAN:
2907 * ACPI GFAN method: returns fan level
2908 *
2909 * see TPACPI_FAN_WR_ACPI_SFAN
2910 * EC 0x2f (HFSP) not available if GFAN exists
2911 *
2912 * TPACPI_FAN_WR_ACPI_SFAN:
2913 * ACPI SFAN method: sets fan level, 0 (stop) to 7 (max)
2914 *
2915 * EC 0x2f (HFSP) might be available *for reading*, but do not use
2916 * it for writing.
2917 *
2918 * TPACPI_FAN_WR_TPEC:
2919 * ThinkPad EC register 0x2f (HFSP): fan control loop mode
2920 * Supported on almost all ThinkPads
2921 *
2922 * Fan speed changes of any sort (including those caused by the
2923 * disengaged mode) are usually done slowly by the firmware as the
2924 * maximum ammount of fan duty cycle change per second seems to be
2925 * limited.
2926 *
2927 * Reading is not available if GFAN exists.
2928 * Writing is not available if SFAN exists.
2929 *
2930 * Bits
2931 * 7 automatic mode engaged;
2932 * (default operation mode of the ThinkPad)
2933 * fan level is ignored in this mode.
2934 * 6 full speed mode (takes precedence over bit 7);
2935 * not available on all thinkpads. May disable
2936 * the tachometer while the fan controller ramps up
2937 * the speed (which can take up to a few *minutes*).
2938 * Speeds up fan to 100% duty-cycle, which is far above
2939 * the standard RPM levels. It is not impossible that
2940 * it could cause hardware damage.
2941 * 5-3 unused in some models. Extra bits for fan level
2942 * in others, but still useless as all values above
2943 * 7 map to the same speed as level 7 in these models.
2944 * 2-0 fan level (0..7 usually)
2945 * 0x00 = stop
2946 * 0x07 = max (set when temperatures critical)
2947 * Some ThinkPads may have other levels, see
2948 * TPACPI_FAN_WR_ACPI_FANS (X31/X40/X41)
2949 *
2950 * FIRMWARE BUG: on some models, EC 0x2f might not be initialized at
2951 * boot. Apparently the EC does not intialize it, so unless ACPI DSDT
2952 * does so, its initial value is meaningless (0x07).
2953 *
2954 * For firmware bugs, refer to:
2955 * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues
2956 *
2957 * ----
2958 *
2959 * ThinkPad EC register 0x84 (LSB), 0x85 (MSB):
2960 * Main fan tachometer reading (in RPM)
2961 *
2962 * This register is present on all ThinkPads with a new-style EC, and
2963 * it is known not to be present on the A21m/e, and T22, as there is
2964 * something else in offset 0x84 according to the ACPI DSDT. Other
2965 * ThinkPads from this same time period (and earlier) probably lack the
2966 * tachometer as well.
2967 *
2968 * Unfortunately a lot of ThinkPads with new-style ECs but whose firwmare
2969 * was never fixed by IBM to report the EC firmware version string
2970 * probably support the tachometer (like the early X models), so
2971 * detecting it is quite hard. We need more data to know for sure.
2972 *
2973 * FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings
2974 * might result.
2975 *
2976 * FIRMWARE BUG: may go stale while the EC is switching to full speed
2977 * mode.
2978 *
2979 * For firmware bugs, refer to:
2980 * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues
2981 *
2982 * TPACPI_FAN_WR_ACPI_FANS:
2983 * ThinkPad X31, X40, X41. Not available in the X60.
2984 *
2985 * FANS ACPI handle: takes three arguments: low speed, medium speed,
2986 * high speed. ACPI DSDT seems to map these three speeds to levels
2987 * as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH
2988 * (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3")
2989 *
2990 * The speeds are stored on handles
2991 * (FANA:FAN9), (FANC:FANB), (FANE:FAND).
2992 *
2993 * There are three default speed sets, acessible as handles:
2994 * FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H
2995 *
2996 * ACPI DSDT switches which set is in use depending on various
2997 * factors.
2998 *
2999 * TPACPI_FAN_WR_TPEC is also available and should be used to
3000 * command the fan. The X31/X40/X41 seems to have 8 fan levels,
3001 * but the ACPI tables just mention level 7.
3002 */
3003
3004static enum fan_status_access_mode fan_status_access_mode;
3005static enum fan_control_access_mode fan_control_access_mode;
3006static enum fan_control_commands fan_control_commands;
3007
3008static u8 fan_control_initial_status;
3009static u8 fan_control_desired_level;
3010
3011static void fan_watchdog_fire(struct work_struct *ignored);
3012static int fan_watchdog_maxinterval;
3013static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire);
3014
3015IBM_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */
3016IBM_HANDLE(gfan, ec, "GFAN", /* 570 */
3017 "\\FSPD", /* 600e/x, 770e, 770x */
3018 ); /* all others */
3019IBM_HANDLE(sfan, ec, "SFAN", /* 570 */
3020 "JFNS", /* 770x-JL */
3021 ); /* all others */
3022
3023/*
3024 * SYSFS fan layout: hwmon compatible (device)
3025 *
3026 * pwm*_enable:
3027 * 0: "disengaged" mode
3028 * 1: manual mode
3029 * 2: native EC "auto" mode (recommended, hardware default)
3030 *
3031 * pwm*: set speed in manual mode, ignored otherwise.
3032 * 0 is level 0; 255 is level 7. Intermediate points done with linear
3033 * interpolation.
3034 *
3035 * fan*_input: tachometer reading, RPM
3036 *
3037 *
3038 * SYSFS fan layout: extensions
3039 *
3040 * fan_watchdog (driver):
3041 * fan watchdog interval in seconds, 0 disables (default), max 120
3042 */
3043
3044/* sysfs fan pwm1_enable ----------------------------------------------- */
3045static ssize_t fan_pwm1_enable_show(struct device *dev,
3046 struct device_attribute *attr,
3047 char *buf)
3048{
3049 int res, mode;
3050 u8 status;
3051
3052 res = fan_get_status_safe(&status);
3053 if (res)
3054 return res;
3055
3056 if (unlikely(tp_features.fan_ctrl_status_undef)) {
3057 if (status != fan_control_initial_status) {
3058 tp_features.fan_ctrl_status_undef = 0;
3059 } else {
3060 /* Return most likely status. In fact, it
3061 * might be the only possible status */
3062 status = TP_EC_FAN_AUTO;
3063 }
3064 }
3065
3066 if (status & TP_EC_FAN_FULLSPEED) {
3067 mode = 0;
3068 } else if (status & TP_EC_FAN_AUTO) {
3069 mode = 2;
3070 } else
3071 mode = 1;
3072
3073 return snprintf(buf, PAGE_SIZE, "%d\n", mode);
3074}
3075
3076static ssize_t fan_pwm1_enable_store(struct device *dev,
3077 struct device_attribute *attr,
3078 const char *buf, size_t count)
3079{
3080 unsigned long t;
3081 int res, level;
3082
3083 if (parse_strtoul(buf, 2, &t))
3084 return -EINVAL;
3085
3086 switch (t) {
3087 case 0:
3088 level = TP_EC_FAN_FULLSPEED;
3089 break;
3090 case 1:
3091 level = TPACPI_FAN_LAST_LEVEL;
3092 break;
3093 case 2:
3094 level = TP_EC_FAN_AUTO;
3095 break;
3096 case 3:
3097 /* reserved for software-controlled auto mode */
3098 return -ENOSYS;
3099 default:
3100 return -EINVAL;
3101 }
3102
3103 res = fan_set_level_safe(level);
3104 if (res == -ENXIO)
3105 return -EINVAL;
3106 else if (res < 0)
3107 return res;
3108
3109 fan_watchdog_reset();
3110
3111 return count;
3112}
3113
3114static struct device_attribute dev_attr_fan_pwm1_enable =
3115 __ATTR(pwm1_enable, S_IWUSR | S_IRUGO,
3116 fan_pwm1_enable_show, fan_pwm1_enable_store);
3117
3118/* sysfs fan pwm1 ------------------------------------------------------ */
3119static ssize_t fan_pwm1_show(struct device *dev,
3120 struct device_attribute *attr,
3121 char *buf)
3122{
3123 int res;
3124 u8 status;
3125
3126 res = fan_get_status_safe(&status);
3127 if (res)
3128 return res;
3129
3130 if (unlikely(tp_features.fan_ctrl_status_undef)) {
3131 if (status != fan_control_initial_status) {
3132 tp_features.fan_ctrl_status_undef = 0;
3133 } else {
3134 status = TP_EC_FAN_AUTO;
3135 }
3136 }
3137
3138 if ((status &
3139 (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) != 0)
3140 status = fan_control_desired_level;
3141
3142 if (status > 7)
3143 status = 7;
3144
3145 return snprintf(buf, PAGE_SIZE, "%u\n", (status * 255) / 7);
3146}
3147
3148static ssize_t fan_pwm1_store(struct device *dev,
3149 struct device_attribute *attr,
3150 const char *buf, size_t count)
3151{
3152 unsigned long s;
3153 int rc;
3154 u8 status, newlevel;
3155
3156 if (parse_strtoul(buf, 255, &s))
3157 return -EINVAL;
3158
3159 /* scale down from 0-255 to 0-7 */
3160 newlevel = (s >> 5) & 0x07;
3161
3162 rc = mutex_lock_interruptible(&fan_mutex);
3163 if (rc < 0)
3164 return rc;
3165
3166 rc = fan_get_status(&status);
3167 if (!rc && (status &
3168 (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) {
3169 rc = fan_set_level(newlevel);
3170 if (rc == -ENXIO)
3171 rc = -EINVAL;
3172 else if (!rc) {
3173 fan_update_desired_level(newlevel);
3174 fan_watchdog_reset();
3175 }
3176 }
3177
3178 mutex_unlock(&fan_mutex);
3179 return (rc)? rc : count;
3180}
3181
3182static struct device_attribute dev_attr_fan_pwm1 =
3183 __ATTR(pwm1, S_IWUSR | S_IRUGO,
3184 fan_pwm1_show, fan_pwm1_store);
3185
3186/* sysfs fan fan1_input ------------------------------------------------ */
3187static ssize_t fan_fan1_input_show(struct device *dev,
3188 struct device_attribute *attr,
3189 char *buf)
3190{
3191 int res;
3192 unsigned int speed;
3193
3194 res = fan_get_speed(&speed);
3195 if (res < 0)
3196 return res;
3197
3198 return snprintf(buf, PAGE_SIZE, "%u\n", speed);
3199}
3200
3201static struct device_attribute dev_attr_fan_fan1_input =
3202 __ATTR(fan1_input, S_IRUGO,
3203 fan_fan1_input_show, NULL);
3204
3205/* sysfs fan fan_watchdog (driver) ------------------------------------- */
3206static ssize_t fan_fan_watchdog_show(struct device_driver *drv,
3207 char *buf)
3208{
3209 return snprintf(buf, PAGE_SIZE, "%u\n", fan_watchdog_maxinterval);
3210}
3211
3212static ssize_t fan_fan_watchdog_store(struct device_driver *drv,
3213 const char *buf, size_t count)
3214{
3215 unsigned long t;
3216
3217 if (parse_strtoul(buf, 120, &t))
3218 return -EINVAL;
3219
3220 if (!fan_control_allowed)
3221 return -EPERM;
3222
3223 fan_watchdog_maxinterval = t;
3224 fan_watchdog_reset();
3225
3226 return count;
3227}
3228
3229static DRIVER_ATTR(fan_watchdog, S_IWUSR | S_IRUGO,
3230 fan_fan_watchdog_show, fan_fan_watchdog_store);
3231
3232/* --------------------------------------------------------------------- */
3233static struct attribute *fan_attributes[] = {
3234 &dev_attr_fan_pwm1_enable.attr, &dev_attr_fan_pwm1.attr,
3235 &dev_attr_fan_fan1_input.attr,
3236 NULL
3237};
3238
3239static const struct attribute_group fan_attr_group = {
3240 .attrs = fan_attributes,
3241};
3242
3243static int __init fan_init(struct ibm_init_struct *iibm)
3244{
3245 int rc;
3246
3247 vdbg_printk(TPACPI_DBG_INIT, "initializing fan subdriver\n");
3248
3249 mutex_init(&fan_mutex);
3250 fan_status_access_mode = TPACPI_FAN_NONE;
3251 fan_control_access_mode = TPACPI_FAN_WR_NONE;
3252 fan_control_commands = 0;
3253 fan_watchdog_maxinterval = 0;
3254 tp_features.fan_ctrl_status_undef = 0;
3255 fan_control_desired_level = 7;
3256
3257 IBM_ACPIHANDLE_INIT(fans);
3258 IBM_ACPIHANDLE_INIT(gfan);
3259 IBM_ACPIHANDLE_INIT(sfan);
3260
3261 if (gfan_handle) {
3262 /* 570, 600e/x, 770e, 770x */
3263 fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN;
3264 } else {
3265 /* all other ThinkPads: note that even old-style
3266 * ThinkPad ECs supports the fan control register */
3267 if (likely(acpi_ec_read(fan_status_offset,
3268 &fan_control_initial_status))) {
3269 fan_status_access_mode = TPACPI_FAN_RD_TPEC;
3270
3271 /* In some ThinkPads, neither the EC nor the ACPI
3272 * DSDT initialize the fan status, and it ends up
3273 * being set to 0x07 when it *could* be either
3274 * 0x07 or 0x80.
3275 *
3276 * Enable for TP-1Y (T43), TP-78 (R51e),
3277 * TP-76 (R52), TP-70 (T43, R52), which are known
3278 * to be buggy. */
3279 if (fan_control_initial_status == 0x07 &&
3280 ibm_thinkpad_ec_found &&
3281 ((ibm_thinkpad_ec_found[0] == '1' &&
3282 ibm_thinkpad_ec_found[1] == 'Y') ||
3283 (ibm_thinkpad_ec_found[0] == '7' &&
3284 (ibm_thinkpad_ec_found[1] == '6' ||
3285 ibm_thinkpad_ec_found[1] == '8' ||
3286 ibm_thinkpad_ec_found[1] == '0'))
3287 )) {
3288 printk(IBM_NOTICE
3289 "fan_init: initial fan status is "
3290 "unknown, assuming it is in auto "
3291 "mode\n");
3292 tp_features.fan_ctrl_status_undef = 1;
3293 }
3294 } else {
3295 printk(IBM_ERR
3296 "ThinkPad ACPI EC access misbehaving, "
3297 "fan status and control unavailable\n");
3298 return 1;
3299 }
3300 }
3301
3302 if (sfan_handle) {
3303 /* 570, 770x-JL */
3304 fan_control_access_mode = TPACPI_FAN_WR_ACPI_SFAN;
3305 fan_control_commands |=
3306 TPACPI_FAN_CMD_LEVEL | TPACPI_FAN_CMD_ENABLE;
3307 } else {
3308 if (!gfan_handle) {
3309 /* gfan without sfan means no fan control */
3310 /* all other models implement TP EC 0x2f control */
3311
3312 if (fans_handle) {
3313 /* X31, X40, X41 */
3314 fan_control_access_mode =
3315 TPACPI_FAN_WR_ACPI_FANS;
3316 fan_control_commands |=
3317 TPACPI_FAN_CMD_SPEED |
3318 TPACPI_FAN_CMD_LEVEL |
3319 TPACPI_FAN_CMD_ENABLE;
3320 } else {
3321 fan_control_access_mode = TPACPI_FAN_WR_TPEC;
3322 fan_control_commands |=
3323 TPACPI_FAN_CMD_LEVEL |
3324 TPACPI_FAN_CMD_ENABLE;
3325 }
3326 }
3327 }
3328
3329 vdbg_printk(TPACPI_DBG_INIT, "fan is %s, modes %d, %d\n",
3330 str_supported(fan_status_access_mode != TPACPI_FAN_NONE ||
3331 fan_control_access_mode != TPACPI_FAN_WR_NONE),
3332 fan_status_access_mode, fan_control_access_mode);
3333
3334 /* fan control master switch */
3335 if (!fan_control_allowed) {
3336 fan_control_access_mode = TPACPI_FAN_WR_NONE;
3337 fan_control_commands = 0;
3338 dbg_printk(TPACPI_DBG_INIT,
3339 "fan control features disabled by parameter\n");
3340 }
3341
3342 /* update fan_control_desired_level */
3343 if (fan_status_access_mode != TPACPI_FAN_NONE)
3344 fan_get_status_safe(NULL);
3345
3346 if (fan_status_access_mode != TPACPI_FAN_NONE ||
3347 fan_control_access_mode != TPACPI_FAN_WR_NONE) {
3348 rc = sysfs_create_group(&tpacpi_pdev->dev.kobj,
3349 &fan_attr_group);
3350 if (!(rc < 0))
3351 rc = driver_create_file(&tpacpi_pdriver.driver,
3352 &driver_attr_fan_watchdog);
3353 if (rc < 0)
3354 return rc;
3355 return 0;
3356 } else
3357 return 1;
3358}
3359
3360/*
3361 * Call with fan_mutex held
3362 */
3363static void fan_update_desired_level(u8 status)
3364{
3365 if ((status &
3366 (TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) {
3367 if (status > 7)
3368 fan_control_desired_level = 7;
3369 else
3370 fan_control_desired_level = status;
3371 }
3372}
3373
3374static int fan_get_status(u8 *status)
3375{
3376 u8 s;
3377
3378 /* TODO:
3379 * Add TPACPI_FAN_RD_ACPI_FANS ? */
3380
3381 switch (fan_status_access_mode) {
3382 case TPACPI_FAN_RD_ACPI_GFAN:
3383 /* 570, 600e/x, 770e, 770x */
3384
3385 if (unlikely(!acpi_evalf(gfan_handle, &s, NULL, "d")))
3386 return -EIO;
3387
3388 if (likely(status))
3389 *status = s & 0x07;
3390
3391 break;
3392
3393 case TPACPI_FAN_RD_TPEC:
3394 /* all except 570, 600e/x, 770e, 770x */
3395 if (unlikely(!acpi_ec_read(fan_status_offset, &s)))
3396 return -EIO;
3397
3398 if (likely(status))
3399 *status = s;
3400
3401 break;
3402
3403 default:
3404 return -ENXIO;
3405 }
3406
3407 return 0;
3408}
3409
3410static int fan_get_status_safe(u8 *status)
3411{
3412 int rc;
3413 u8 s;
3414
3415 rc = mutex_lock_interruptible(&fan_mutex);
3416 if (rc < 0)
3417 return rc;
3418 rc = fan_get_status(&s);
3419 if (!rc)
3420 fan_update_desired_level(s);
3421 mutex_unlock(&fan_mutex);
3422
3423 if (status)
3424 *status = s;
3425
3426 return rc;
3427}
3428
3429static void fan_exit(void)
3430{
3431 vdbg_printk(TPACPI_DBG_EXIT, "cancelling any pending fan watchdog tasks\n");
3432
3433 /* FIXME: can we really do this unconditionally? */
3434 sysfs_remove_group(&tpacpi_pdev->dev.kobj, &fan_attr_group);
3435 driver_remove_file(&tpacpi_pdriver.driver, &driver_attr_fan_watchdog);
3436
3437 cancel_delayed_work(&fan_watchdog_task);
3438 flush_scheduled_work();
3439}
3440
3441static int fan_get_speed(unsigned int *speed)
3442{
3443 u8 hi, lo;
3444
3445 switch (fan_status_access_mode) {
3446 case TPACPI_FAN_RD_TPEC:
3447 /* all except 570, 600e/x, 770e, 770x */
3448 if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) ||
3449 !acpi_ec_read(fan_rpm_offset + 1, &hi)))
3450 return -EIO;
3451
3452 if (likely(speed))
3453 *speed = (hi << 8) | lo;
3454
3455 break;
3456
3457 default:
3458 return -ENXIO;
3459 }
3460
3461 return 0;
3462}
3463
3464static void fan_watchdog_fire(struct work_struct *ignored)
3465{
3466 int rc;
3467
3468 printk(IBM_NOTICE "fan watchdog: enabling fan\n");
3469 rc = fan_set_enable();
3470 if (rc < 0) {
3471 printk(IBM_ERR "fan watchdog: error %d while enabling fan, "
3472 "will try again later...\n", -rc);
3473 /* reschedule for later */
3474 fan_watchdog_reset();
3475 }
3476}
3477
3478static void fan_watchdog_reset(void)
3479{
3480 static int fan_watchdog_active = 0;
3481
3482 if (fan_control_access_mode == TPACPI_FAN_WR_NONE)
3483 return;
3484
3485 if (fan_watchdog_active)
3486 cancel_delayed_work(&fan_watchdog_task);
3487
3488 if (fan_watchdog_maxinterval > 0) {
3489 fan_watchdog_active = 1;
3490 if (!schedule_delayed_work(&fan_watchdog_task,
3491 msecs_to_jiffies(fan_watchdog_maxinterval
3492 * 1000))) {
3493 printk(IBM_ERR "failed to schedule the fan watchdog, "
3494 "watchdog will not trigger\n");
3495 }
3496 } else
3497 fan_watchdog_active = 0;
3498}
3499
3500static int fan_set_level(int level)
3501{
3502 if (!fan_control_allowed)
3503 return -EPERM;
3504
3505 switch (fan_control_access_mode) {
3506 case TPACPI_FAN_WR_ACPI_SFAN:
3507 if (level >= 0 && level <= 7) {
3508 if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level))
3509 return -EIO;
3510 } else
3511 return -EINVAL;
3512 break;
3513
3514 case TPACPI_FAN_WR_ACPI_FANS:
3515 case TPACPI_FAN_WR_TPEC:
3516 if ((level != TP_EC_FAN_AUTO) &&
3517 (level != TP_EC_FAN_FULLSPEED) &&
3518 ((level < 0) || (level > 7)))
3519 return -EINVAL;
3520
3521 /* safety net should the EC not support AUTO
3522 * or FULLSPEED mode bits and just ignore them */
3523 if (level & TP_EC_FAN_FULLSPEED)
3524 level |= 7; /* safety min speed 7 */
3525 else if (level & TP_EC_FAN_FULLSPEED)
3526 level |= 4; /* safety min speed 4 */
3527
3528 if (!acpi_ec_write(fan_status_offset, level))
3529 return -EIO;
3530 else
3531 tp_features.fan_ctrl_status_undef = 0;
3532 break;
3533
3534 default:
3535 return -ENXIO;
3536 }
3537 return 0;
3538}
3539
3540static int fan_set_level_safe(int level)
3541{
3542 int rc;
3543
3544 if (!fan_control_allowed)
3545 return -EPERM;
3546
3547 rc = mutex_lock_interruptible(&fan_mutex);
3548 if (rc < 0)
3549 return rc;
3550
3551 if (level == TPACPI_FAN_LAST_LEVEL)
3552 level = fan_control_desired_level;
3553
3554 rc = fan_set_level(level);
3555 if (!rc)
3556 fan_update_desired_level(level);
3557
3558 mutex_unlock(&fan_mutex);
3559 return rc;
3560}
3561
3562static int fan_set_enable(void)
3563{
3564 u8 s;
3565 int rc;
3566
3567 if (!fan_control_allowed)
3568 return -EPERM;
3569
3570 rc = mutex_lock_interruptible(&fan_mutex);
3571 if (rc < 0)
3572 return rc;
3573
3574 switch (fan_control_access_mode) {
3575 case TPACPI_FAN_WR_ACPI_FANS:
3576 case TPACPI_FAN_WR_TPEC:
3577 rc = fan_get_status(&s);
3578 if (rc < 0)
3579 break;
3580
3581 /* Don't go out of emergency fan mode */
3582 if (s != 7) {
3583 s &= 0x07;
3584 s |= TP_EC_FAN_AUTO | 4; /* min fan speed 4 */
3585 }
3586
3587 if (!acpi_ec_write(fan_status_offset, s))
3588 rc = -EIO;
3589 else {
3590 tp_features.fan_ctrl_status_undef = 0;
3591 rc = 0;
3592 }
3593 break;
3594
3595 case TPACPI_FAN_WR_ACPI_SFAN:
3596 rc = fan_get_status(&s);
3597 if (rc < 0)
3598 break;
3599
3600 s &= 0x07;
3601
3602 /* Set fan to at least level 4 */
3603 s |= 4;
3604
3605 if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s))
3606 rc= -EIO;
3607 else
3608 rc = 0;
3609 break;
3610
3611 default:
3612 rc = -ENXIO;
3613 }
3614
3615 mutex_unlock(&fan_mutex);
3616 return rc;
3617}
3618
3619static int fan_set_disable(void)
3620{
3621 int rc;
3622
3623 if (!fan_control_allowed)
3624 return -EPERM;
3625
3626 rc = mutex_lock_interruptible(&fan_mutex);
3627 if (rc < 0)
3628 return rc;
3629
3630 rc = 0;
3631 switch (fan_control_access_mode) {
3632 case TPACPI_FAN_WR_ACPI_FANS:
3633 case TPACPI_FAN_WR_TPEC:
3634 if (!acpi_ec_write(fan_status_offset, 0x00))
3635 rc = -EIO;
3636 else {
3637 fan_control_desired_level = 0;
3638 tp_features.fan_ctrl_status_undef = 0;
3639 }
3640 break;
3641
3642 case TPACPI_FAN_WR_ACPI_SFAN:
3643 if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00))
3644 rc = -EIO;
3645 else
3646 fan_control_desired_level = 0;
3647 break;
3648
3649 default:
3650 rc = -ENXIO;
3651 }
3652
3653
3654 mutex_unlock(&fan_mutex);
3655 return rc;
3656}
3657
3658static int fan_set_speed(int speed)
3659{
3660 int rc;
3661
3662 if (!fan_control_allowed)
3663 return -EPERM;
3664
3665 rc = mutex_lock_interruptible(&fan_mutex);
3666 if (rc < 0)
3667 return rc;
3668
3669 rc = 0;
3670 switch (fan_control_access_mode) {
3671 case TPACPI_FAN_WR_ACPI_FANS:
3672 if (speed >= 0 && speed <= 65535) {
3673 if (!acpi_evalf(fans_handle, NULL, NULL, "vddd",
3674 speed, speed, speed))
3675 rc = -EIO;
3676 } else
3677 rc = -EINVAL;
3678 break;
3679
3680 default:
3681 rc = -ENXIO;
3682 }
3683
3684 mutex_unlock(&fan_mutex);
3685 return rc;
3686}
3687
3688static int fan_read(char *p)
3689{
3690 int len = 0;
3691 int rc;
3692 u8 status;
3693 unsigned int speed = 0;
3694
3695 switch (fan_status_access_mode) {
3696 case TPACPI_FAN_RD_ACPI_GFAN:
3697 /* 570, 600e/x, 770e, 770x */
3698 if ((rc = fan_get_status_safe(&status)) < 0)
3699 return rc;
3700
3701 len += sprintf(p + len, "status:\t\t%s\n"
3702 "level:\t\t%d\n",
3703 (status != 0) ? "enabled" : "disabled", status);
3704 break;
3705
3706 case TPACPI_FAN_RD_TPEC:
3707 /* all except 570, 600e/x, 770e, 770x */
3708 if ((rc = fan_get_status_safe(&status)) < 0)
3709 return rc;
3710
3711 if (unlikely(tp_features.fan_ctrl_status_undef)) {
3712 if (status != fan_control_initial_status)
3713 tp_features.fan_ctrl_status_undef = 0;
3714 else
3715 /* Return most likely status. In fact, it
3716 * might be the only possible status */
3717 status = TP_EC_FAN_AUTO;
3718 }
3719
3720 len += sprintf(p + len, "status:\t\t%s\n",
3721 (status != 0) ? "enabled" : "disabled");
3722
3723 if ((rc = fan_get_speed(&speed)) < 0)
3724 return rc;
3725
3726 len += sprintf(p + len, "speed:\t\t%d\n", speed);
3727
3728 if (status & TP_EC_FAN_FULLSPEED)
3729 /* Disengaged mode takes precedence */
3730 len += sprintf(p + len, "level:\t\tdisengaged\n");
3731 else if (status & TP_EC_FAN_AUTO)
3732 len += sprintf(p + len, "level:\t\tauto\n");
3733 else
3734 len += sprintf(p + len, "level:\t\t%d\n", status);
3735 break;
3736
3737 case TPACPI_FAN_NONE:
3738 default:
3739 len += sprintf(p + len, "status:\t\tnot supported\n");
3740 }
3741
3742 if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) {
3743 len += sprintf(p + len, "commands:\tlevel <level>");
3744
3745 switch (fan_control_access_mode) {
3746 case TPACPI_FAN_WR_ACPI_SFAN:
3747 len += sprintf(p + len, " (<level> is 0-7)\n");
3748 break;
3749
3750 default:
3751 len += sprintf(p + len, " (<level> is 0-7, "
3752 "auto, disengaged, full-speed)\n");
3753 break;
3754 }
3755 }
3756
3757 if (fan_control_commands & TPACPI_FAN_CMD_ENABLE)
3758 len += sprintf(p + len, "commands:\tenable, disable\n"
3759 "commands:\twatchdog <timeout> (<timeout> is 0 (off), "
3760 "1-120 (seconds))\n");
3761
3762 if (fan_control_commands & TPACPI_FAN_CMD_SPEED)
3763 len += sprintf(p + len, "commands:\tspeed <speed>"
3764 " (<speed> is 0-65535)\n");
3765
3766 return len;
3767}
3768
3769static int fan_write_cmd_level(const char *cmd, int *rc)
3770{
3771 int level;
3772
3773 if (strlencmp(cmd, "level auto") == 0)
3774 level = TP_EC_FAN_AUTO;
3775 else if ((strlencmp(cmd, "level disengaged") == 0) |
3776 (strlencmp(cmd, "level full-speed") == 0))
3777 level = TP_EC_FAN_FULLSPEED;
3778 else if (sscanf(cmd, "level %d", &level) != 1)
3779 return 0;
3780
3781 if ((*rc = fan_set_level_safe(level)) == -ENXIO)
3782 printk(IBM_ERR "level command accepted for unsupported "
3783 "access mode %d", fan_control_access_mode);
3784
3785 return 1;
3786}
3787
3788static int fan_write_cmd_enable(const char *cmd, int *rc)
3789{
3790 if (strlencmp(cmd, "enable") != 0)
3791 return 0;
3792
3793 if ((*rc = fan_set_enable()) == -ENXIO)
3794 printk(IBM_ERR "enable command accepted for unsupported "
3795 "access mode %d", fan_control_access_mode);
3796
3797 return 1;
3798}
3799
3800static int fan_write_cmd_disable(const char *cmd, int *rc)
3801{
3802 if (strlencmp(cmd, "disable") != 0)
3803 return 0;
3804
3805 if ((*rc = fan_set_disable()) == -ENXIO)
3806 printk(IBM_ERR "disable command accepted for unsupported "
3807 "access mode %d", fan_control_access_mode);
3808
3809 return 1;
3810}
3811
3812static int fan_write_cmd_speed(const char *cmd, int *rc)
3813{
3814 int speed;
3815
3816 /* TODO:
3817 * Support speed <low> <medium> <high> ? */
3818
3819 if (sscanf(cmd, "speed %d", &speed) != 1)
3820 return 0;
3821
3822 if ((*rc = fan_set_speed(speed)) == -ENXIO)
3823 printk(IBM_ERR "speed command accepted for unsupported "
3824 "access mode %d", fan_control_access_mode);
3825
3826 return 1;
3827}
3828
3829static int fan_write_cmd_watchdog(const char *cmd, int *rc)
3830{
3831 int interval;
3832
3833 if (sscanf(cmd, "watchdog %d", &interval) != 1)
3834 return 0;
3835
3836 if (interval < 0 || interval > 120)
3837 *rc = -EINVAL;
3838 else
3839 fan_watchdog_maxinterval = interval;
3840
3841 return 1;
3842}
3843
3844static int fan_write(char *buf)
3845{
3846 char *cmd;
3847 int rc = 0;
3848
3849 while (!rc && (cmd = next_cmd(&buf))) {
3850 if (!((fan_control_commands & TPACPI_FAN_CMD_LEVEL) &&
3851 fan_write_cmd_level(cmd, &rc)) &&
3852 !((fan_control_commands & TPACPI_FAN_CMD_ENABLE) &&
3853 (fan_write_cmd_enable(cmd, &rc) ||
3854 fan_write_cmd_disable(cmd, &rc) ||
3855 fan_write_cmd_watchdog(cmd, &rc))) &&
3856 !((fan_control_commands & TPACPI_FAN_CMD_SPEED) &&
3857 fan_write_cmd_speed(cmd, &rc))
3858 )
3859 rc = -EINVAL;
3860 else if (!rc)
3861 fan_watchdog_reset();
3862 }
3863
3864 return rc;
3865}
3866
3867static struct ibm_struct fan_driver_data = {
3868 .name = "fan",
3869 .read = fan_read,
3870 .write = fan_write,
3871 .exit = fan_exit,
3872};
3873
3874/****************************************************************************
3875 ****************************************************************************
3876 *
3877 * Infrastructure
3878 *
3879 ****************************************************************************
3880 ****************************************************************************/
3881
3882/* /proc support */
3883static struct proc_dir_entry *proc_dir = NULL;
3884
3885/* Subdriver registry */
3886static LIST_HEAD(tpacpi_all_drivers);
3887
3888
3889/*
3890 * Module and infrastructure proble, init and exit handling
3891 */
3892
3893#ifdef CONFIG_THINKPAD_ACPI_DEBUG
3894static const char * __init str_supported(int is_supported)
3895{
3896 static char text_unsupported[] __initdata = "not supported";
3897
3898 return (is_supported)? &text_unsupported[4] : &text_unsupported[0];
3899}
3900#endif /* CONFIG_THINKPAD_ACPI_DEBUG */
3901
3902static int __init ibm_init(struct ibm_init_struct *iibm)
3903{
3904 int ret;
3905 struct ibm_struct *ibm = iibm->data;
3906 struct proc_dir_entry *entry;
3907
3908 BUG_ON(ibm == NULL);
3909
3910 INIT_LIST_HEAD(&ibm->all_drivers);
3911
3912 if (ibm->flags.experimental && !experimental)
3913 return 0;
3914
3915 dbg_printk(TPACPI_DBG_INIT,
3916 "probing for %s\n", ibm->name);
3917
3918 if (iibm->init) {
3919 ret = iibm->init(iibm);
3920 if (ret > 0)
3921 return 0; /* probe failed */
3922 if (ret)
3923 return ret;
3924
3925 ibm->flags.init_called = 1;
3926 }
3927
3928 if (ibm->acpi) {
3929 if (ibm->acpi->hid) {
3930 ret = register_tpacpi_subdriver(ibm);
3931 if (ret)
3932 goto err_out;
3933 }
3934
3935 if (ibm->acpi->notify) {
3936 ret = setup_acpi_notify(ibm);
3937 if (ret == -ENODEV) {
3938 printk(IBM_NOTICE "disabling subdriver %s\n",
3939 ibm->name);
3940 ret = 0;
3941 goto err_out;
3942 }
3943 if (ret < 0)
3944 goto err_out;
3945 }
3946 }
3947
3948 dbg_printk(TPACPI_DBG_INIT,
3949 "%s installed\n", ibm->name);
3950
3951 if (ibm->read) {
3952 entry = create_proc_entry(ibm->name,
3953 S_IFREG | S_IRUGO | S_IWUSR,
3954 proc_dir);
3955 if (!entry) {
3956 printk(IBM_ERR "unable to create proc entry %s\n",
3957 ibm->name);
3958 ret = -ENODEV;
3959 goto err_out;
3960 }
3961 entry->owner = THIS_MODULE;
3962 entry->data = ibm;
3963 entry->read_proc = &dispatch_procfs_read;
3964 if (ibm->write)
3965 entry->write_proc = &dispatch_procfs_write;
3966 ibm->flags.proc_created = 1;
3967 }
3968
3969 list_add_tail(&ibm->all_drivers, &tpacpi_all_drivers);
3970
3971 return 0;
3972
3973err_out:
3974 dbg_printk(TPACPI_DBG_INIT,
3975 "%s: at error exit path with result %d\n",
3976 ibm->name, ret);
3977
3978 ibm_exit(ibm);
3979 return (ret < 0)? ret : 0;
3980}
3981
3982static void ibm_exit(struct ibm_struct *ibm)
3983{
3984 dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name);
3985
3986 list_del_init(&ibm->all_drivers);
3987
3988 if (ibm->flags.acpi_notify_installed) {
3989 dbg_printk(TPACPI_DBG_EXIT,
3990 "%s: acpi_remove_notify_handler\n", ibm->name);
3991 BUG_ON(!ibm->acpi);
3992 acpi_remove_notify_handler(*ibm->acpi->handle,
3993 ibm->acpi->type,
3994 dispatch_acpi_notify);
3995 ibm->flags.acpi_notify_installed = 0;
3996 ibm->flags.acpi_notify_installed = 0;
3997 }
3998
3999 if (ibm->flags.proc_created) {
4000 dbg_printk(TPACPI_DBG_EXIT,
4001 "%s: remove_proc_entry\n", ibm->name);
4002 remove_proc_entry(ibm->name, proc_dir);
4003 ibm->flags.proc_created = 0;
4004 }
4005
4006 if (ibm->flags.acpi_driver_registered) {
4007 dbg_printk(TPACPI_DBG_EXIT,
4008 "%s: acpi_bus_unregister_driver\n", ibm->name);
4009 BUG_ON(!ibm->acpi);
4010 acpi_bus_unregister_driver(ibm->acpi->driver);
4011 kfree(ibm->acpi->driver);
4012 ibm->acpi->driver = NULL;
4013 ibm->flags.acpi_driver_registered = 0;
4014 }
4015
4016 if (ibm->flags.init_called && ibm->exit) {
4017 ibm->exit();
4018 ibm->flags.init_called = 0;
4019 }
4020
4021 dbg_printk(TPACPI_DBG_INIT, "finished removing %s\n", ibm->name);
4022}
4023
4024/* Probing */
4025
4026static char *ibm_thinkpad_ec_found = NULL;
4027
4028static char* __init check_dmi_for_ec(void)
4029{
4030 struct dmi_device *dev = NULL;
4031 char ec_fw_string[18];
4032
4033 /*
4034 * ThinkPad T23 or newer, A31 or newer, R50e or newer,
4035 * X32 or newer, all Z series; Some models must have an
4036 * up-to-date BIOS or they will not be detected.
4037 *
4038 * See http://thinkwiki.org/wiki/List_of_DMI_IDs
4039 */
4040 while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) {
4041 if (sscanf(dev->name,
4042 "IBM ThinkPad Embedded Controller -[%17c",
4043 ec_fw_string) == 1) {
4044 ec_fw_string[sizeof(ec_fw_string) - 1] = 0;
4045 ec_fw_string[strcspn(ec_fw_string, " ]")] = 0;
4046 return kstrdup(ec_fw_string, GFP_KERNEL);
4047 }
4048 }
4049 return NULL;
4050}
4051
4052static int __init probe_for_thinkpad(void)
4053{
4054 int is_thinkpad;
4055
4056 if (acpi_disabled)
4057 return -ENODEV;
4058
4059 /*
4060 * Non-ancient models have better DMI tagging, but very old models
4061 * don't.
4062 */
4063 is_thinkpad = dmi_name_in_vendors("ThinkPad");
4064
4065 /* ec is required because many other handles are relative to it */
4066 IBM_ACPIHANDLE_INIT(ec);
4067 if (!ec_handle) {
4068 if (is_thinkpad)
4069 printk(IBM_ERR
4070 "Not yet supported ThinkPad detected!\n");
4071 return -ENODEV;
4072 }
4073
4074 /*
4075 * Risks a regression on very old machines, but reduces potential
4076 * false positives a damn great deal
4077 */
4078 if (!is_thinkpad)
4079 is_thinkpad = dmi_name_in_vendors("IBM");
4080
4081 if (!is_thinkpad && !force_load)
4082 return -ENODEV;
4083
4084 return 0;
4085}
4086
4087
4088/* Module init, exit, parameters */
4089
4090static struct ibm_init_struct ibms_init[] __initdata = {
4091 {
4092 .init = thinkpad_acpi_driver_init,
4093 .data = &thinkpad_acpi_driver_data,
4094 },
4095 {
4096 .init = hotkey_init,
4097 .data = &hotkey_driver_data,
4098 },
4099 {
4100 .init = bluetooth_init,
4101 .data = &bluetooth_driver_data,
4102 },
4103 {
4104 .init = wan_init,
4105 .data = &wan_driver_data,
4106 },
4107 {
4108 .init = video_init,
4109 .data = &video_driver_data,
4110 },
4111 {
4112 .init = light_init,
4113 .data = &light_driver_data,
4114 },
4115#ifdef CONFIG_THINKPAD_ACPI_DOCK
4116 {
4117 .init = dock_init,
4118 .data = &dock_driver_data[0],
4119 },
4120 {
4121 .init = dock_init2,
4122 .data = &dock_driver_data[1],
4123 },
4124#endif
4125#ifdef CONFIG_THINKPAD_ACPI_BAY
4126 {
4127 .init = bay_init,
4128 .data = &bay_driver_data,
4129 },
4130#endif
4131 {
4132 .init = cmos_init,
4133 .data = &cmos_driver_data,
4134 },
4135 {
4136 .init = led_init,
4137 .data = &led_driver_data,
4138 },
4139 {
4140 .init = beep_init,
4141 .data = &beep_driver_data,
4142 },
4143 {
4144 .init = thermal_init,
4145 .data = &thermal_driver_data,
4146 },
4147 {
4148 .data = &ecdump_driver_data,
4149 },
4150 {
4151 .init = brightness_init,
4152 .data = &brightness_driver_data,
4153 },
4154 {
4155 .data = &volume_driver_data,
4156 },
4157 {
4158 .init = fan_init,
4159 .data = &fan_driver_data,
4160 },
4161};
4162
4163static int __init set_ibm_param(const char *val, struct kernel_param *kp)
4164{
4165 unsigned int i;
4166 struct ibm_struct *ibm;
4167
4168 for (i = 0; i < ARRAY_SIZE(ibms_init); i++) {
4169 ibm = ibms_init[i].data;
4170 BUG_ON(ibm == NULL);
4171
4172 if (strcmp(ibm->name, kp->name) == 0 && ibm->write) {
4173 if (strlen(val) > sizeof(ibms_init[i].param) - 2)
4174 return -ENOSPC;
4175 strcpy(ibms_init[i].param, val);
4176 strcat(ibms_init[i].param, ",");
4177 return 0;
4178 }
4179 }
4180
4181 return -EINVAL;
4182}
4183
4184static int experimental;
4185module_param(experimental, int, 0);
4186
4187static u32 dbg_level;
4188module_param_named(debug, dbg_level, uint, 0);
4189
4190static int force_load;
4191module_param(force_load, int, 0);
4192
4193static int fan_control_allowed;
4194module_param_named(fan_control, fan_control_allowed, int, 0);
4195
4196#define IBM_PARAM(feature) \
4197 module_param_call(feature, set_ibm_param, NULL, NULL, 0)
4198
4199IBM_PARAM(hotkey);
4200IBM_PARAM(bluetooth);
4201IBM_PARAM(video);
4202IBM_PARAM(light);
4203#ifdef CONFIG_THINKPAD_ACPI_DOCK
4204IBM_PARAM(dock);
4205#endif
4206#ifdef CONFIG_THINKPAD_ACPI_BAY
4207IBM_PARAM(bay);
4208#endif /* CONFIG_THINKPAD_ACPI_BAY */
4209IBM_PARAM(cmos);
4210IBM_PARAM(led);
4211IBM_PARAM(beep);
4212IBM_PARAM(ecdump);
4213IBM_PARAM(brightness);
4214IBM_PARAM(volume);
4215IBM_PARAM(fan);
4216
4217static int __init thinkpad_acpi_module_init(void)
4218{
4219 int ret, i;
4220
4221 /* Driver-level probe */
4222 ret = probe_for_thinkpad();
4223 if (ret)
4224 return ret;
4225
4226 /* Driver initialization */
4227 ibm_thinkpad_ec_found = check_dmi_for_ec();
4228 IBM_ACPIHANDLE_INIT(ecrd);
4229 IBM_ACPIHANDLE_INIT(ecwr);
4230
4231 proc_dir = proc_mkdir(IBM_PROC_DIR, acpi_root_dir);
4232 if (!proc_dir) {
4233 printk(IBM_ERR "unable to create proc dir " IBM_PROC_DIR);
4234 thinkpad_acpi_module_exit();
4235 return -ENODEV;
4236 }
4237 proc_dir->owner = THIS_MODULE;
4238
4239 ret = platform_driver_register(&tpacpi_pdriver);
4240 if (ret) {
4241 printk(IBM_ERR "unable to register platform driver\n");
4242 thinkpad_acpi_module_exit();
4243 return ret;
4244 }
4245 ret = tpacpi_create_driver_attributes(&tpacpi_pdriver.driver);
4246 if (ret) {
4247 printk(IBM_ERR "unable to create sysfs driver attributes\n");
4248 thinkpad_acpi_module_exit();
4249 return ret;
4250 }
4251
4252
4253 /* Device initialization */
4254 tpacpi_pdev = platform_device_register_simple(IBM_DRVR_NAME, -1,
4255 NULL, 0);
4256 if (IS_ERR(tpacpi_pdev)) {
4257 ret = PTR_ERR(tpacpi_pdev);
4258 tpacpi_pdev = NULL;
4259 printk(IBM_ERR "unable to register platform device\n");
4260 thinkpad_acpi_module_exit();
4261 return ret;
4262 }
4263 tpacpi_hwmon = hwmon_device_register(&tpacpi_pdev->dev);
4264 if (IS_ERR(tpacpi_hwmon)) {
4265 ret = PTR_ERR(tpacpi_hwmon);
4266 tpacpi_hwmon = NULL;
4267 printk(IBM_ERR "unable to register hwmon device\n");
4268 thinkpad_acpi_module_exit();
4269 return ret;
4270 }
4271 for (i = 0; i < ARRAY_SIZE(ibms_init); i++) {
4272 ret = ibm_init(&ibms_init[i]);
4273 if (ret >= 0 && *ibms_init[i].param)
4274 ret = ibms_init[i].data->write(ibms_init[i].param);
4275 if (ret < 0) {
4276 thinkpad_acpi_module_exit();
4277 return ret;
4278 }
4279 }
4280
4281 return 0;
4282}
4283
4284static void thinkpad_acpi_module_exit(void)
4285{
4286 struct ibm_struct *ibm, *itmp;
4287
4288 list_for_each_entry_safe_reverse(ibm, itmp,
4289 &tpacpi_all_drivers,
4290 all_drivers) {
4291 ibm_exit(ibm);
4292 }
4293
4294 dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n");
4295
4296 if (tpacpi_hwmon)
4297 hwmon_device_unregister(tpacpi_hwmon);
4298
4299 if (tpacpi_pdev)
4300 platform_device_unregister(tpacpi_pdev);
4301
4302 tpacpi_remove_driver_attributes(&tpacpi_pdriver.driver);
4303 platform_driver_unregister(&tpacpi_pdriver);
4304
4305 if (proc_dir)
4306 remove_proc_entry(IBM_PROC_DIR, acpi_root_dir);
4307
4308 kfree(ibm_thinkpad_ec_found);
4309}
4310
4311module_init(thinkpad_acpi_module_init);
4312module_exit(thinkpad_acpi_module_exit);
diff --git a/drivers/misc/thinkpad_acpi.h b/drivers/misc/thinkpad_acpi.h
new file mode 100644
index 000000000000..440145a02617
--- /dev/null
+++ b/drivers/misc/thinkpad_acpi.h
@@ -0,0 +1,572 @@
1/*
2 * thinkpad_acpi.h - ThinkPad ACPI Extras
3 *
4 *
5 * Copyright (C) 2004-2005 Borislav Deianov <borislav@users.sf.net>
6 * Copyright (C) 2006-2007 Henrique de Moraes Holschuh <hmh@hmh.eng.br>
7 *
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.
12 *
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.
17 *
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
21 * 02110-1301, USA.
22 */
23
24#ifndef __THINKPAD_ACPI_H__
25#define __THINKPAD_ACPI_H__
26
27#include <linux/kernel.h>
28#include <linux/module.h>
29#include <linux/init.h>
30#include <linux/types.h>
31#include <linux/string.h>
32#include <linux/list.h>
33#include <linux/mutex.h>
34
35#include <linux/proc_fs.h>
36#include <linux/sysfs.h>
37#include <linux/backlight.h>
38#include <linux/fb.h>
39#include <linux/platform_device.h>
40#include <linux/hwmon.h>
41#include <linux/hwmon-sysfs.h>
42#include <asm/uaccess.h>
43
44#include <linux/dmi.h>
45#include <linux/jiffies.h>
46#include <linux/workqueue.h>
47
48#include <acpi/acpi_drivers.h>
49#include <acpi/acnamesp.h>
50
51
52/****************************************************************************
53 * Main driver
54 */
55
56#define IBM_NAME "thinkpad"
57#define IBM_DESC "ThinkPad ACPI Extras"
58#define IBM_FILE "thinkpad_acpi"
59#define IBM_URL "http://ibm-acpi.sf.net/"
60#define IBM_MAIL "ibm-acpi-devel@lists.sourceforge.net"
61
62#define IBM_PROC_DIR "ibm"
63#define IBM_ACPI_EVENT_PREFIX "ibm"
64#define IBM_DRVR_NAME IBM_FILE
65
66#define IBM_LOG IBM_FILE ": "
67#define IBM_ERR KERN_ERR IBM_LOG
68#define IBM_NOTICE KERN_NOTICE IBM_LOG
69#define IBM_INFO KERN_INFO IBM_LOG
70#define IBM_DEBUG KERN_DEBUG IBM_LOG
71
72#define IBM_MAX_ACPI_ARGS 3
73
74/* ThinkPad CMOS commands */
75#define TP_CMOS_VOLUME_DOWN 0
76#define TP_CMOS_VOLUME_UP 1
77#define TP_CMOS_VOLUME_MUTE 2
78#define TP_CMOS_BRIGHTNESS_UP 4
79#define TP_CMOS_BRIGHTNESS_DOWN 5
80
81#define onoff(status,bit) ((status) & (1 << (bit)) ? "on" : "off")
82#define enabled(status,bit) ((status) & (1 << (bit)) ? "enabled" : "disabled")
83#define strlencmp(a,b) (strncmp((a), (b), strlen(b)))
84
85/* Debugging */
86#define TPACPI_DBG_ALL 0xffff
87#define TPACPI_DBG_ALL 0xffff
88#define TPACPI_DBG_INIT 0x0001
89#define TPACPI_DBG_EXIT 0x0002
90#define dbg_printk(a_dbg_level, format, arg...) \
91 do { if (dbg_level & a_dbg_level) \
92 printk(IBM_DEBUG "%s: " format, __func__ , ## arg); } while (0)
93#ifdef CONFIG_THINKPAD_ACPI_DEBUG
94#define vdbg_printk(a_dbg_level, format, arg...) \
95 dbg_printk(a_dbg_level, format, ## arg)
96static const char *str_supported(int is_supported);
97#else
98#define vdbg_printk(a_dbg_level, format, arg...)
99#endif
100
101/* ACPI HIDs */
102#define IBM_HKEY_HID "IBM0068"
103#define IBM_PCI_HID "PNP0A03"
104
105/* ACPI helpers */
106static int __must_check acpi_evalf(acpi_handle handle,
107 void *res, char *method, char *fmt, ...);
108static int __must_check acpi_ec_read(int i, u8 * p);
109static int __must_check acpi_ec_write(int i, u8 v);
110static int __must_check _sta(acpi_handle handle);
111
112/* ACPI handles */
113static acpi_handle root_handle; /* root namespace */
114static acpi_handle ec_handle; /* EC */
115static acpi_handle ecrd_handle, ecwr_handle; /* 570 EC access */
116static acpi_handle cmos_handle, hkey_handle; /* basic thinkpad handles */
117
118static void drv_acpi_handle_init(char *name,
119 acpi_handle *handle, acpi_handle parent,
120 char **paths, int num_paths, char **path);
121#define IBM_ACPIHANDLE_INIT(object) \
122 drv_acpi_handle_init(#object, &object##_handle, *object##_parent, \
123 object##_paths, ARRAY_SIZE(object##_paths), &object##_path)
124
125/* ThinkPad ACPI helpers */
126static int issue_thinkpad_cmos_command(int cmos_cmd);
127
128/* procfs support */
129static struct proc_dir_entry *proc_dir;
130
131/* procfs helpers */
132static int dispatch_procfs_read(char *page, char **start, off_t off,
133 int count, int *eof, void *data);
134static int dispatch_procfs_write(struct file *file,
135 const char __user * userbuf,
136 unsigned long count, void *data);
137static char *next_cmd(char **cmds);
138
139/* sysfs support */
140struct attribute_set {
141 unsigned int members, max_members;
142 struct attribute_group group;
143};
144
145static struct attribute_set *create_attr_set(unsigned int max_members,
146 const char* name);
147#define destroy_attr_set(_set) \
148 kfree(_set);
149static int add_to_attr_set(struct attribute_set* s, struct attribute *attr);
150static int add_many_to_attr_set(struct attribute_set* s,
151 struct attribute **attr,
152 unsigned int count);
153#define register_attr_set_with_sysfs(_attr_set, _kobj) \
154 sysfs_create_group(_kobj, &_attr_set->group)
155static void delete_attr_set(struct attribute_set* s, struct kobject *kobj);
156
157static int parse_strtoul(const char *buf, unsigned long max,
158 unsigned long *value);
159
160/* Device model */
161static struct platform_device *tpacpi_pdev;
162static struct class_device *tpacpi_hwmon;
163static struct platform_driver tpacpi_pdriver;
164static int tpacpi_create_driver_attributes(struct device_driver *drv);
165static void tpacpi_remove_driver_attributes(struct device_driver *drv);
166
167/* Module */
168static int experimental;
169static u32 dbg_level;
170static int force_load;
171static char *ibm_thinkpad_ec_found;
172
173static char* check_dmi_for_ec(void);
174static int thinkpad_acpi_module_init(void);
175static void thinkpad_acpi_module_exit(void);
176
177
178/****************************************************************************
179 * Subdrivers
180 */
181
182struct ibm_struct;
183
184struct tp_acpi_drv_struct {
185 char *hid;
186 struct acpi_driver *driver;
187
188 void (*notify) (struct ibm_struct *, u32);
189 acpi_handle *handle;
190 u32 type;
191 struct acpi_device *device;
192};
193
194struct ibm_struct {
195 char *name;
196
197 int (*read) (char *);
198 int (*write) (char *);
199 void (*exit) (void);
200
201 struct list_head all_drivers;
202
203 struct tp_acpi_drv_struct *acpi;
204
205 struct {
206 u8 acpi_driver_registered:1;
207 u8 acpi_notify_installed:1;
208 u8 proc_created:1;
209 u8 init_called:1;
210 u8 experimental:1;
211 } flags;
212};
213
214struct ibm_init_struct {
215 char param[32];
216
217 int (*init) (struct ibm_init_struct *);
218 struct ibm_struct *data;
219};
220
221static struct {
222#ifdef CONFIG_THINKPAD_ACPI_BAY
223 u16 bay_status:1;
224 u16 bay_eject:1;
225 u16 bay_status2:1;
226 u16 bay_eject2:1;
227#endif
228 u16 bluetooth:1;
229 u16 hotkey:1;
230 u16 hotkey_mask:1;
231 u16 light:1;
232 u16 light_status:1;
233 u16 wan:1;
234 u16 fan_ctrl_status_undef:1;
235} tp_features;
236
237static struct list_head tpacpi_all_drivers;
238
239static struct ibm_init_struct ibms_init[];
240static int set_ibm_param(const char *val, struct kernel_param *kp);
241static int ibm_init(struct ibm_init_struct *iibm);
242static void ibm_exit(struct ibm_struct *ibm);
243
244
245/*
246 * procfs master subdriver
247 */
248static int thinkpad_acpi_driver_init(struct ibm_init_struct *iibm);
249static int thinkpad_acpi_driver_read(char *p);
250
251
252/*
253 * Bay subdriver
254 */
255
256#ifdef CONFIG_THINKPAD_ACPI_BAY
257static acpi_handle bay_handle, bay_ej_handle;
258static acpi_handle bay2_handle, bay2_ej_handle;
259
260static int bay_init(struct ibm_init_struct *iibm);
261static void bay_notify(struct ibm_struct *ibm, u32 event);
262static int bay_read(char *p);
263static int bay_write(char *buf);
264#endif /* CONFIG_THINKPAD_ACPI_BAY */
265
266
267/*
268 * Beep subdriver
269 */
270
271static acpi_handle beep_handle;
272
273static int beep_read(char *p);
274static int beep_write(char *buf);
275
276
277/*
278 * Bluetooth subdriver
279 */
280
281#define TPACPI_BLUETH_SYSFS_GROUP "bluetooth"
282
283enum {
284 /* ACPI GBDC/SBDC bits */
285 TP_ACPI_BLUETOOTH_HWPRESENT = 0x01, /* Bluetooth hw available */
286 TP_ACPI_BLUETOOTH_RADIOSSW = 0x02, /* Bluetooth radio enabled */
287 TP_ACPI_BLUETOOTH_UNK = 0x04, /* unknown function */
288};
289
290static int bluetooth_init(struct ibm_init_struct *iibm);
291static int bluetooth_get_radiosw(void);
292static int bluetooth_set_radiosw(int radio_on);
293static int bluetooth_read(char *p);
294static int bluetooth_write(char *buf);
295
296
297/*
298 * Brightness (backlight) subdriver
299 */
300
301#define TPACPI_BACKLIGHT_DEV_NAME "thinkpad_screen"
302
303static struct backlight_device *ibm_backlight_device;
304static int brightness_offset = 0x31;
305
306static int brightness_init(struct ibm_init_struct *iibm);
307static void brightness_exit(void);
308static int brightness_get(struct backlight_device *bd);
309static int brightness_set(int value);
310static int brightness_update_status(struct backlight_device *bd);
311static int brightness_read(char *p);
312static int brightness_write(char *buf);
313
314
315/*
316 * CMOS subdriver
317 */
318
319static int cmos_read(char *p);
320static int cmos_write(char *buf);
321
322
323/*
324 * Dock subdriver
325 */
326
327#ifdef CONFIG_THINKPAD_ACPI_DOCK
328static acpi_handle pci_handle;
329static acpi_handle dock_handle;
330
331static void dock_notify(struct ibm_struct *ibm, u32 event);
332static int dock_read(char *p);
333static int dock_write(char *buf);
334#endif /* CONFIG_THINKPAD_ACPI_DOCK */
335
336
337/*
338 * EC dump subdriver
339 */
340
341static int ecdump_read(char *p) ;
342static int ecdump_write(char *buf);
343
344
345/*
346 * Fan subdriver
347 */
348
349enum { /* Fan control constants */
350 fan_status_offset = 0x2f, /* EC register 0x2f */
351 fan_rpm_offset = 0x84, /* EC register 0x84: LSB, 0x85 MSB (RPM)
352 * 0x84 must be read before 0x85 */
353
354 TP_EC_FAN_FULLSPEED = 0x40, /* EC fan mode: full speed */
355 TP_EC_FAN_AUTO = 0x80, /* EC fan mode: auto fan control */
356
357 TPACPI_FAN_LAST_LEVEL = 0x100, /* Use cached last-seen fan level */
358};
359
360enum fan_status_access_mode {
361 TPACPI_FAN_NONE = 0, /* No fan status or control */
362 TPACPI_FAN_RD_ACPI_GFAN, /* Use ACPI GFAN */
363 TPACPI_FAN_RD_TPEC, /* Use ACPI EC regs 0x2f, 0x84-0x85 */
364};
365
366enum fan_control_access_mode {
367 TPACPI_FAN_WR_NONE = 0, /* No fan control */
368 TPACPI_FAN_WR_ACPI_SFAN, /* Use ACPI SFAN */
369 TPACPI_FAN_WR_TPEC, /* Use ACPI EC reg 0x2f */
370 TPACPI_FAN_WR_ACPI_FANS, /* Use ACPI FANS and EC reg 0x2f */
371};
372
373enum fan_control_commands {
374 TPACPI_FAN_CMD_SPEED = 0x0001, /* speed command */
375 TPACPI_FAN_CMD_LEVEL = 0x0002, /* level command */
376 TPACPI_FAN_CMD_ENABLE = 0x0004, /* enable/disable cmd,
377 * and also watchdog cmd */
378};
379
380static int fan_control_allowed;
381
382static enum fan_status_access_mode fan_status_access_mode;
383static enum fan_control_access_mode fan_control_access_mode;
384static enum fan_control_commands fan_control_commands;
385static u8 fan_control_initial_status;
386static u8 fan_control_desired_level;
387static int fan_watchdog_maxinterval;
388
389static struct mutex fan_mutex;
390
391static acpi_handle fans_handle, gfan_handle, sfan_handle;
392
393static int fan_init(struct ibm_init_struct *iibm);
394static void fan_exit(void);
395static int fan_get_status(u8 *status);
396static int fan_get_status_safe(u8 *status);
397static int fan_get_speed(unsigned int *speed);
398static void fan_update_desired_level(u8 status);
399static void fan_watchdog_fire(struct work_struct *ignored);
400static void fan_watchdog_reset(void);
401static int fan_set_level(int level);
402static int fan_set_level_safe(int level);
403static int fan_set_enable(void);
404static int fan_set_disable(void);
405static int fan_set_speed(int speed);
406static int fan_read(char *p);
407static int fan_write(char *buf);
408static int fan_write_cmd_level(const char *cmd, int *rc);
409static int fan_write_cmd_enable(const char *cmd, int *rc);
410static int fan_write_cmd_disable(const char *cmd, int *rc);
411static int fan_write_cmd_speed(const char *cmd, int *rc);
412static int fan_write_cmd_watchdog(const char *cmd, int *rc);
413
414
415/*
416 * Hotkey subdriver
417 */
418
419#define TPACPI_HOTKEY_SYSFS_GROUP "hotkey"
420
421static int hotkey_orig_status;
422static int hotkey_orig_mask;
423
424static struct mutex hotkey_mutex;
425
426static int hotkey_init(struct ibm_init_struct *iibm);
427static void hotkey_exit(void);
428static int hotkey_get(int *status, int *mask);
429static int hotkey_set(int status, int mask);
430static void hotkey_notify(struct ibm_struct *ibm, u32 event);
431static int hotkey_read(char *p);
432static int hotkey_write(char *buf);
433
434
435/*
436 * LED subdriver
437 */
438
439enum led_access_mode {
440 TPACPI_LED_NONE = 0,
441 TPACPI_LED_570, /* 570 */
442 TPACPI_LED_OLD, /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */
443 TPACPI_LED_NEW, /* all others */
444};
445
446enum { /* For TPACPI_LED_OLD */
447 TPACPI_LED_EC_HLCL = 0x0c, /* EC reg to get led to power on */
448 TPACPI_LED_EC_HLBL = 0x0d, /* EC reg to blink a lit led */
449 TPACPI_LED_EC_HLMS = 0x0e, /* EC reg to select led to command */
450};
451
452static enum led_access_mode led_supported;
453static acpi_handle led_handle;
454
455static int led_init(struct ibm_init_struct *iibm);
456static int led_read(char *p);
457static int led_write(char *buf);
458
459/*
460 * Light (thinklight) subdriver
461 */
462
463static acpi_handle lght_handle, ledb_handle;
464
465static int light_init(struct ibm_init_struct *iibm);
466static int light_read(char *p);
467static int light_write(char *buf);
468
469
470/*
471 * Thermal subdriver
472 */
473
474enum thermal_access_mode {
475 TPACPI_THERMAL_NONE = 0, /* No thermal support */
476 TPACPI_THERMAL_ACPI_TMP07, /* Use ACPI TMP0-7 */
477 TPACPI_THERMAL_ACPI_UPDT, /* Use ACPI TMP0-7 with UPDT */
478 TPACPI_THERMAL_TPEC_8, /* Use ACPI EC regs, 8 sensors */
479 TPACPI_THERMAL_TPEC_16, /* Use ACPI EC regs, 16 sensors */
480};
481
482enum { /* TPACPI_THERMAL_TPEC_* */
483 TP_EC_THERMAL_TMP0 = 0x78, /* ACPI EC regs TMP 0..7 */
484 TP_EC_THERMAL_TMP8 = 0xC0, /* ACPI EC regs TMP 8..15 */
485 TP_EC_THERMAL_TMP_NA = -128, /* ACPI EC sensor not available */
486};
487
488#define TPACPI_MAX_THERMAL_SENSORS 16 /* Max thermal sensors supported */
489struct ibm_thermal_sensors_struct {
490 s32 temp[TPACPI_MAX_THERMAL_SENSORS];
491};
492
493static enum thermal_access_mode thermal_read_mode;
494
495static int thermal_init(struct ibm_init_struct *iibm);
496static int thermal_get_sensor(int idx, s32 *value);
497static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s);
498static int thermal_read(char *p);
499
500
501/*
502 * Video subdriver
503 */
504
505enum video_access_mode {
506 TPACPI_VIDEO_NONE = 0,
507 TPACPI_VIDEO_570, /* 570 */
508 TPACPI_VIDEO_770, /* 600e/x, 770e, 770x */
509 TPACPI_VIDEO_NEW, /* all others */
510};
511
512enum { /* video status flags, based on VIDEO_570 */
513 TP_ACPI_VIDEO_S_LCD = 0x01, /* LCD output enabled */
514 TP_ACPI_VIDEO_S_CRT = 0x02, /* CRT output enabled */
515 TP_ACPI_VIDEO_S_DVI = 0x08, /* DVI output enabled */
516};
517
518enum { /* TPACPI_VIDEO_570 constants */
519 TP_ACPI_VIDEO_570_PHSCMD = 0x87, /* unknown magic constant :( */
520 TP_ACPI_VIDEO_570_PHSMASK = 0x03, /* PHS bits that map to
521 * video_status_flags */
522 TP_ACPI_VIDEO_570_PHS2CMD = 0x8b, /* unknown magic constant :( */
523 TP_ACPI_VIDEO_570_PHS2SET = 0x80, /* unknown magic constant :( */
524};
525
526static enum video_access_mode video_supported;
527static int video_orig_autosw;
528static acpi_handle vid_handle, vid2_handle;
529
530static int video_init(struct ibm_init_struct *iibm);
531static void video_exit(void);
532static int video_outputsw_get(void);
533static int video_outputsw_set(int status);
534static int video_autosw_get(void);
535static int video_autosw_set(int enable);
536static int video_outputsw_cycle(void);
537static int video_expand_toggle(void);
538static int video_read(char *p);
539static int video_write(char *buf);
540
541
542/*
543 * Volume subdriver
544 */
545
546static int volume_offset = 0x30;
547
548static int volume_read(char *p);
549static int volume_write(char *buf);
550
551
552/*
553 * Wan subdriver
554 */
555
556#define TPACPI_WAN_SYSFS_GROUP "wwan"
557
558enum {
559 /* ACPI GWAN/SWAN bits */
560 TP_ACPI_WANCARD_HWPRESENT = 0x01, /* Wan hw available */
561 TP_ACPI_WANCARD_RADIOSSW = 0x02, /* Wan radio enabled */
562 TP_ACPI_WANCARD_UNK = 0x04, /* unknown function */
563};
564
565static int wan_init(struct ibm_init_struct *iibm);
566static int wan_get_radiosw(void);
567static int wan_set_radiosw(int radio_on);
568static int wan_read(char *p);
569static int wan_write(char *buf);
570
571
572#endif /* __THINKPAD_ACPI_H */
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-06 22:20:47 -0500