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Commit 106ad8d6 authored by Len Brown's avatar Len Brown
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Merge branch 'fujitsu-laptop' into release

parents 33a8c927 f87a1a5f
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drivers/misc/fujitsu-laptop.c
View file @ 106ad8d6
......@@ -3,6 +3,7 @@
/*
Copyright (C) 2007,2008 Jonathan Woithe <jwoithe@physics.adelaide.edu.au>
Copyright (C) 2008 Peter Gruber <nokos@gmx.net>
Copyright (C) 2008 Tony Vroon <tony@linx.net>
Based on earlier work:
Copyright (C) 2003 Shane Spencer <shane@bogomip.com>
Adrian Yee <brewt-fujitsu@brewt.org>
......@@ -65,8 +66,11 @@
#include <linux/kfifo.h>
#include <linux/video_output.h>
#include <linux/platform_device.h>
#ifdef CONFIG_LEDS_CLASS
#include <linux/leds.h>
#endif
#define FUJITSU_DRIVER_VERSION "0.4.3"
#define FUJITSU_DRIVER_VERSION "0.5.0"
#define FUJITSU_LCD_N_LEVELS 8
......@@ -83,6 +87,24 @@
#define ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS 0x86
#define ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS 0x87
/* FUNC interface - command values */
#define FUNC_RFKILL 0x1000
#define FUNC_LEDS 0x1001
#define FUNC_BUTTONS 0x1002
#define FUNC_BACKLIGHT 0x1004
/* FUNC interface - responses */
#define UNSUPPORTED_CMD 0x80000000
#ifdef CONFIG_LEDS_CLASS
/* FUNC interface - LED control */
#define FUNC_LED_OFF 0x1
#define FUNC_LED_ON 0x30001
#define KEYBOARD_LAMPS 0x100
#define LOGOLAMP_POWERON 0x2000
#define LOGOLAMP_ALWAYS 0x4000
#endif
/* Hotkey details */
#define KEY1_CODE 0x410 /* codes for the keys in the GIRB register */
#define KEY2_CODE 0x411
......@@ -133,7 +155,6 @@ struct fujitsu_t {
static struct fujitsu_t *fujitsu;
static int use_alt_lcd_levels = -1;
static int disable_brightness_keys = -1;
static int disable_brightness_adjust = -1;
/* Device used to access other hotkeys on the laptop */
......@@ -145,8 +166,9 @@ struct fujitsu_hotkey_t {
struct platform_device *pf_device;
struct kfifo *fifo;
spinlock_t fifo_lock;
unsigned int irb; /* info about the pressed buttons */
int rfkill_state;
int logolamp_registered;
int kblamps_registered;
};
static struct fujitsu_hotkey_t *fujitsu_hotkey;
......@@ -154,12 +176,139 @@ static struct fujitsu_hotkey_t *fujitsu_hotkey;
static void acpi_fujitsu_hotkey_notify(acpi_handle handle, u32 event,
void *data);
#ifdef CONFIG_LEDS_CLASS
static enum led_brightness logolamp_get(struct led_classdev *cdev);
static void logolamp_set(struct led_classdev *cdev,
enum led_brightness brightness);
struct led_classdev logolamp_led = {
.name = "fujitsu::logolamp",
.brightness_get = logolamp_get,
.brightness_set = logolamp_set
};
static enum led_brightness kblamps_get(struct led_classdev *cdev);
static void kblamps_set(struct led_classdev *cdev,
enum led_brightness brightness);
struct led_classdev kblamps_led = {
.name = "fujitsu::kblamps",
.brightness_get = kblamps_get,
.brightness_set = kblamps_set
};
#endif
#ifdef CONFIG_FUJITSU_LAPTOP_DEBUG
static u32 dbg_level = 0x03;
#endif
static void acpi_fujitsu_notify(acpi_handle handle, u32 event, void *data);
/* Fujitsu ACPI interface function */
static int call_fext_func(int cmd, int arg0, int arg1, int arg2)
{
acpi_status status = AE_OK;
union acpi_object params[4] = {
{ .type = ACPI_TYPE_INTEGER },
{ .type = ACPI_TYPE_INTEGER },
{ .type = ACPI_TYPE_INTEGER },
{ .type = ACPI_TYPE_INTEGER }
};
struct acpi_object_list arg_list = { 4, &params[0] };
struct acpi_buffer output;
union acpi_object out_obj;
acpi_handle handle = NULL;
status = acpi_get_handle(fujitsu_hotkey->acpi_handle, "FUNC", &handle);
if (ACPI_FAILURE(status)) {
vdbg_printk(FUJLAPTOP_DBG_ERROR,
"FUNC interface is not present\n");
return -ENODEV;
}
params[0].integer.value = cmd;
params[1].integer.value = arg0;
params[2].integer.value = arg1;
params[3].integer.value = arg2;
output.length = sizeof(out_obj);
output.pointer = &out_obj;
status = acpi_evaluate_object(handle, NULL, &arg_list, &output);
if (ACPI_FAILURE(status)) {
vdbg_printk(FUJLAPTOP_DBG_WARN,
"FUNC 0x%x (args 0x%x, 0x%x, 0x%x) call failed\n",
cmd, arg0, arg1, arg2);
return -ENODEV;
}
if (out_obj.type != ACPI_TYPE_INTEGER) {
vdbg_printk(FUJLAPTOP_DBG_WARN,
"FUNC 0x%x (args 0x%x, 0x%x, 0x%x) did not "
"return an integer\n",
cmd, arg0, arg1, arg2);
return -ENODEV;
}
vdbg_printk(FUJLAPTOP_DBG_TRACE,
"FUNC 0x%x (args 0x%x, 0x%x, 0x%x) returned 0x%x\n",
cmd, arg0, arg1, arg2, (int)out_obj.integer.value);
return out_obj.integer.value;
}
#ifdef CONFIG_LEDS_CLASS
/* LED class callbacks */
static void logolamp_set(struct led_classdev *cdev,
enum led_brightness brightness)
{
if (brightness >= LED_FULL) {
call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, FUNC_LED_ON);
call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_ALWAYS, FUNC_LED_ON);
} else if (brightness >= LED_HALF) {
call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, FUNC_LED_ON);
call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_ALWAYS, FUNC_LED_OFF);
} else {
call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, FUNC_LED_OFF);
}
}
static void kblamps_set(struct led_classdev *cdev,
enum led_brightness brightness)
{
if (brightness >= LED_FULL)
call_fext_func(FUNC_LEDS, 0x1, KEYBOARD_LAMPS, FUNC_LED_ON);
else
call_fext_func(FUNC_LEDS, 0x1, KEYBOARD_LAMPS, FUNC_LED_OFF);
}
static enum led_brightness logolamp_get(struct led_classdev *cdev)
{
enum led_brightness brightness = LED_OFF;
int poweron, always;
poweron = call_fext_func(FUNC_LEDS, 0x2, LOGOLAMP_POWERON, 0x0);
if (poweron == FUNC_LED_ON) {
brightness = LED_HALF;
always = call_fext_func(FUNC_LEDS, 0x2, LOGOLAMP_ALWAYS, 0x0);
if (always == FUNC_LED_ON)
brightness = LED_FULL;
}
return brightness;
}
static enum led_brightness kblamps_get(struct led_classdev *cdev)
{
enum led_brightness brightness = LED_OFF;
if (call_fext_func(FUNC_LEDS, 0x2, KEYBOARD_LAMPS, 0x0) == FUNC_LED_ON)
brightness = LED_FULL;
return brightness;
}
#endif
/* Hardware access for LCD brightness control */
static int set_lcd_level(int level)
......@@ -263,44 +412,34 @@ static int get_max_brightness(void)
return fujitsu->max_brightness;
}
static int get_lcd_level_alt(void)
{
unsigned long long state = 0;
acpi_status status = AE_OK;
vdbg_printk(FUJLAPTOP_DBG_TRACE, "get lcd level via GBLS\n");
status =
acpi_evaluate_integer(fujitsu->acpi_handle, "GBLS", NULL, &state);
if (status < 0)
return status;
fujitsu->brightness_level = state & 0x0fffffff;
if (state & 0x80000000)
fujitsu->brightness_changed = 1;
else
fujitsu->brightness_changed = 0;
return fujitsu->brightness_level;
}
/* Backlight device stuff */
static int bl_get_brightness(struct backlight_device *b)
{
if (use_alt_lcd_levels)
return get_lcd_level_alt();
else
return get_lcd_level();
return get_lcd_level();
}
static int bl_update_status(struct backlight_device *b)
{
int ret;
if (b->props.power == 4)
ret = call_fext_func(FUNC_BACKLIGHT, 0x1, 0x4, 0x3);
else
ret = call_fext_func(FUNC_BACKLIGHT, 0x1, 0x4, 0x0);
if (ret != 0)
vdbg_printk(FUJLAPTOP_DBG_ERROR,
"Unable to adjust backlight power, error code %i\n",
ret);
if (use_alt_lcd_levels)
return set_lcd_level_alt(b->props.brightness);
ret = set_lcd_level_alt(b->props.brightness);
else
return set_lcd_level(b->props.brightness);
ret = set_lcd_level(b->props.brightness);
if (ret != 0)
vdbg_printk(FUJLAPTOP_DBG_ERROR,
"Unable to adjust LCD brightness, error code %i\n",
ret);
return ret;
}
static struct backlight_ops fujitsubl_ops = {
......@@ -344,10 +483,7 @@ static ssize_t show_lcd_level(struct device *dev,
int ret;
if (use_alt_lcd_levels)
ret = get_lcd_level_alt();
else
ret = get_lcd_level();
ret = get_lcd_level();
if (ret < 0)
return ret;
......@@ -372,52 +508,71 @@ static ssize_t store_lcd_level(struct device *dev,
if (ret < 0)
return ret;
if (use_alt_lcd_levels)
ret = get_lcd_level_alt();
else
ret = get_lcd_level();
ret = get_lcd_level();
if (ret < 0)
return ret;
return count;
}
/* Hardware access for hotkey device */
static int get_irb(void)
static ssize_t
ignore_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
unsigned long long state = 0;
acpi_status status = AE_OK;
vdbg_printk(FUJLAPTOP_DBG_TRACE, "Get irb\n");
status =
acpi_evaluate_integer(fujitsu_hotkey->acpi_handle, "GIRB", NULL,
&state);
if (status < 0)
return status;
return count;
}
fujitsu_hotkey->irb = state;
static ssize_t
show_lid_state(struct device *dev,
struct device_attribute *attr, char *buf)
{
if (fujitsu_hotkey->rfkill_state == UNSUPPORTED_CMD)
return sprintf(buf, "unknown\n");
if (fujitsu_hotkey->rfkill_state & 0x100)
return sprintf(buf, "open\n");
else
return sprintf(buf, "closed\n");
}
return fujitsu_hotkey->irb;
static ssize_t
show_dock_state(struct device *dev,
struct device_attribute *attr, char *buf)
{
if (fujitsu_hotkey->rfkill_state == UNSUPPORTED_CMD)
return sprintf(buf, "unknown\n");
if (fujitsu_hotkey->rfkill_state & 0x200)
return sprintf(buf, "docked\n");
else
return sprintf(buf, "undocked\n");
}
static ssize_t
ignore_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
show_radios_state(struct device *dev,
struct device_attribute *attr, char *buf)
{
return count;
if (fujitsu_hotkey->rfkill_state == UNSUPPORTED_CMD)
return sprintf(buf, "unknown\n");
if (fujitsu_hotkey->rfkill_state & 0x20)
return sprintf(buf, "on\n");
else
return sprintf(buf, "killed\n");
}
static DEVICE_ATTR(max_brightness, 0444, show_max_brightness, ignore_store);
static DEVICE_ATTR(brightness_changed, 0444, show_brightness_changed,
ignore_store);
static DEVICE_ATTR(lcd_level, 0644, show_lcd_level, store_lcd_level);
static DEVICE_ATTR(lid, 0444, show_lid_state, ignore_store);
static DEVICE_ATTR(dock, 0444, show_dock_state, ignore_store);
static DEVICE_ATTR(radios, 0444, show_radios_state, ignore_store);
static struct attribute *fujitsupf_attributes[] = {
&dev_attr_brightness_changed.attr,
&dev_attr_max_brightness.attr,
&dev_attr_lcd_level.attr,
&dev_attr_lid.attr,
&dev_attr_dock.attr,
&dev_attr_radios.attr,
NULL
};
......@@ -435,24 +590,16 @@ static struct platform_driver fujitsupf_driver = {
static void dmi_check_cb_common(const struct dmi_system_id *id)
{
acpi_handle handle;
int have_blnf;
printk(KERN_INFO "fujitsu-laptop: Identified laptop model '%s'.\n",
id->ident);
have_blnf = ACPI_SUCCESS
(acpi_get_handle(NULL, "\\_SB.PCI0.GFX0.LCD.BLNF", &handle));
if (use_alt_lcd_levels == -1) {
vdbg_printk(FUJLAPTOP_DBG_TRACE, "auto-detecting usealt\n");
use_alt_lcd_levels = 1;
}
if (disable_brightness_keys == -1) {
vdbg_printk(FUJLAPTOP_DBG_TRACE,
"auto-detecting disable_keys\n");
disable_brightness_keys = have_blnf ? 1 : 0;
}
if (disable_brightness_adjust == -1) {
vdbg_printk(FUJLAPTOP_DBG_TRACE,
"auto-detecting disable_adjust\n");
disable_brightness_adjust = have_blnf ? 0 : 1;
if (ACPI_SUCCESS(acpi_get_handle(NULL,
"\\_SB.PCI0.LPCB.FJEX.SBL2", &handle)))
use_alt_lcd_levels = 1;
else
use_alt_lcd_levels = 0;
vdbg_printk(FUJLAPTOP_DBG_TRACE, "auto-detected usealt as "
"%i\n", use_alt_lcd_levels);
}
}
......@@ -581,19 +728,14 @@ static int acpi_fujitsu_add(struct acpi_device *device)
/* do config (detect defaults) */
use_alt_lcd_levels = use_alt_lcd_levels == 1 ? 1 : 0;
disable_brightness_keys = disable_brightness_keys == 1 ? 1 : 0;
disable_brightness_adjust = disable_brightness_adjust == 1 ? 1 : 0;
vdbg_printk(FUJLAPTOP_DBG_INFO,
"config: [alt interface: %d], [key disable: %d], [adjust disable: %d]\n",
use_alt_lcd_levels, disable_brightness_keys,
disable_brightness_adjust);
"config: [alt interface: %d], [adjust disable: %d]\n",
use_alt_lcd_levels, disable_brightness_adjust);
if (get_max_brightness() <= 0)
fujitsu->max_brightness = FUJITSU_LCD_N_LEVELS;
if (use_alt_lcd_levels)
get_lcd_level_alt();
else
get_lcd_level();
get_lcd_level();
return result;
......@@ -644,43 +786,23 @@ static void acpi_fujitsu_notify(acpi_handle handle, u32 event, void *data)
case ACPI_FUJITSU_NOTIFY_CODE1:
keycode = 0;
oldb = fujitsu->brightness_level;
get_lcd_level(); /* the alt version always yields changed */
get_lcd_level();
newb = fujitsu->brightness_level;
vdbg_printk(FUJLAPTOP_DBG_TRACE,
"brightness button event [%i -> %i (%i)]\n",
oldb, newb, fujitsu->brightness_changed);
if (oldb == newb && fujitsu->brightness_changed) {
keycode = 0;
if (disable_brightness_keys != 1) {
if (oldb == 0) {
acpi_bus_generate_proc_event
(fujitsu->dev,
ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS,
0);
keycode = KEY_BRIGHTNESSDOWN;
} else if (oldb ==
(fujitsu->max_brightness) - 1) {
acpi_bus_generate_proc_event
(fujitsu->dev,
ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS,
0);
keycode = KEY_BRIGHTNESSUP;
}
}
} else if (oldb < newb) {
if (oldb < newb) {
if (disable_brightness_adjust != 1) {
if (use_alt_lcd_levels)
set_lcd_level_alt(newb);
else
set_lcd_level(newb);
}
if (disable_brightness_keys != 1) {
acpi_bus_generate_proc_event(fujitsu->dev,
ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS, 0);
keycode = KEY_BRIGHTNESSUP;
}
acpi_bus_generate_proc_event(fujitsu->dev,
ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS, 0);
keycode = KEY_BRIGHTNESSUP;
} else if (oldb > newb) {
if (disable_brightness_adjust != 1) {
if (use_alt_lcd_levels)
......@@ -688,13 +810,9 @@ static void acpi_fujitsu_notify(acpi_handle handle, u32 event, void *data)
else
set_lcd_level(newb);
}
if (disable_brightness_keys != 1) {
acpi_bus_generate_proc_event(fujitsu->dev,
ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS, 0);
keycode = KEY_BRIGHTNESSDOWN;
}
} else {
keycode = KEY_UNKNOWN;
acpi_bus_generate_proc_event(fujitsu->dev,
ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS, 0);
keycode = KEY_BRIGHTNESSDOWN;
}
break;
default:
......@@ -771,7 +889,8 @@ static int acpi_fujitsu_hotkey_add(struct acpi_device *device)
input->id.bustype = BUS_HOST;
input->id.product = 0x06;
input->dev.parent = &device->dev;
input->evbit[0] = BIT(EV_KEY);
set_bit(EV_KEY, input->evbit);
set_bit(fujitsu->keycode1, input->keybit);
set_bit(fujitsu->keycode2, input->keybit);
set_bit(fujitsu->keycode3, input->keybit);
......@@ -803,10 +922,44 @@ static int acpi_fujitsu_hotkey_add(struct acpi_device *device)
printk(KERN_ERR "_INI Method failed\n");
}
i = 0; /* Discard hotkey ringbuffer */
while (get_irb() != 0 && (i++) < MAX_HOTKEY_RINGBUFFER_SIZE) ;
i = 0;
while (call_fext_func(FUNC_BUTTONS, 0x1, 0x0, 0x0) != 0
&& (i++) < MAX_HOTKEY_RINGBUFFER_SIZE)
; /* No action, result is discarded */
vdbg_printk(FUJLAPTOP_DBG_INFO, "Discarded %i ringbuffer entries\n", i);
fujitsu_hotkey->rfkill_state =
call_fext_func(FUNC_RFKILL, 0x4, 0x0, 0x0);
/* Suspect this is a keymap of the application panel, print it */
printk(KERN_INFO "fujitsu-laptop: BTNI: [0x%x]\n",
call_fext_func(FUNC_BUTTONS, 0x0, 0x0, 0x0));
#ifdef CONFIG_LEDS_CLASS
if (call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & LOGOLAMP_POWERON) {
result = led_classdev_register(&fujitsu->pf_device->dev,
&logolamp_led);
if (result == 0) {
fujitsu_hotkey->logolamp_registered = 1;
} else {
printk(KERN_ERR "fujitsu-laptop: Could not register "
"LED handler for logo lamp, error %i\n", result);
}
}
if ((call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & KEYBOARD_LAMPS) &&
(call_fext_func(FUNC_BUTTONS, 0x0, 0x0, 0x0) == 0x0)) {
result = led_classdev_register(&fujitsu->pf_device->dev,
&kblamps_led);
if (result == 0) {
fujitsu_hotkey->kblamps_registered = 1;
} else {
printk(KERN_ERR "fujitsu-laptop: Could not register "
"LED handler for keyboard lamps, error %i\n", result);
}
}
#endif
return result;
end:
......@@ -852,16 +1005,15 @@ static void acpi_fujitsu_hotkey_notify(acpi_handle handle, u32 event,
input = fujitsu_hotkey->input;
vdbg_printk(FUJLAPTOP_DBG_TRACE, "Hotkey event\n");
fujitsu_hotkey->rfkill_state =
call_fext_func(FUNC_RFKILL, 0x4, 0x0, 0x0);
switch (event) {
case ACPI_FUJITSU_NOTIFY_CODE1:
i = 0;
while ((irb = get_irb()) != 0
&& (i++) < MAX_HOTKEY_RINGBUFFER_SIZE) {
vdbg_printk(FUJLAPTOP_DBG_TRACE, "GIRB result [%x]\n",
irb);
while ((irb =
call_fext_func(FUNC_BUTTONS, 0x1, 0x0, 0x0)) != 0
&& (i++) < MAX_HOTKEY_RINGBUFFER_SIZE) {
switch (irb & 0x4ff) {
case KEY1_CODE:
keycode = fujitsu->keycode1;
......@@ -1035,6 +1187,15 @@ static int __init fujitsu_init(void)
goto fail_hotkey1;
}
/* Sync backlight power status (needs FUJ02E3 device, hence deferred) */
if (!acpi_video_backlight_support()) {
if (call_fext_func(FUNC_BACKLIGHT, 0x2, 0x4, 0x0) == 3)
fujitsu->bl_device->props.power = 4;
else
fujitsu->bl_device->props.power = 0;
}
printk(KERN_INFO "fujitsu-laptop: driver " FUJITSU_DRIVER_VERSION
" successfully loaded.\n");
......@@ -1074,6 +1235,14 @@ static int __init fujitsu_init(void)
static void __exit fujitsu_cleanup(void)
{
#ifdef CONFIG_LEDS_CLASS
if (fujitsu_hotkey->logolamp_registered != 0)
led_classdev_unregister(&logolamp_led);
if (fujitsu_hotkey->kblamps_registered != 0)
led_classdev_unregister(&kblamps_led);
#endif
sysfs_remove_group(&fujitsu->pf_device->dev.kobj,
&fujitsupf_attribute_group);
platform_device_unregister(fujitsu->pf_device);
......@@ -1098,9 +1267,6 @@ module_exit(fujitsu_cleanup);
module_param(use_alt_lcd_levels, uint, 0644);
MODULE_PARM_DESC(use_alt_lcd_levels,
"Use alternative interface for lcd_levels (needed for Lifebook s6410).");
module_param(disable_brightness_keys, uint, 0644);
MODULE_PARM_DESC(disable_brightness_keys,
"Disable brightness keys (eg. if they are already handled by the generic ACPI_VIDEO device).");
module_param(disable_brightness_adjust, uint, 0644);
MODULE_PARM_DESC(disable_brightness_adjust, "Disable brightness adjustment .");
#ifdef CONFIG_FUJITSU_LAPTOP_DEBUG
......@@ -1108,12 +1274,13 @@ module_param_named(debug, dbg_level, uint, 0644);
MODULE_PARM_DESC(debug, "Sets debug level bit-mask");
#endif
MODULE_AUTHOR("Jonathan Woithe, Peter Gruber");
MODULE_AUTHOR("Jonathan Woithe, Peter Gruber, Tony Vroon");
MODULE_DESCRIPTION("Fujitsu laptop extras support");
MODULE_VERSION(FUJITSU_DRIVER_VERSION);
MODULE_LICENSE("GPL");
MODULE_ALIAS("dmi:*:svnFUJITSUSIEMENS:*:pvr:rvnFUJITSU:rnFJNB1D3:*:cvrS6410:*");
MODULE_ALIAS("dmi:*:svnFUJITSUSIEMENS:*:pvr:rvnFUJITSU:rnFJNB1E6:*:cvrS6420:*");
MODULE_ALIAS("dmi:*:svnFUJITSU:*:pvr:rvnFUJITSU:rnFJNB19C:*:cvrS7020:*");
static struct pnp_device_id pnp_ids[] = {
......
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