/*-*-linux-c-*-*/ /* Copyright (C) 2007,2008 Jonathan Woithe Copyright (C) 2008 Peter Gruber Copyright (C) 2008 Tony Vroon Based on earlier work: Copyright (C) 2003 Shane Spencer Adrian Yee Templated from msi-laptop.c and thinkpad_acpi.c which is copyright by its respective authors. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ /* * fujitsu-laptop.c - Fujitsu laptop support, providing access to additional * features made available on a range of Fujitsu laptops including the * P2xxx/P5xxx/S6xxx/S7xxx series. * * This driver exports a few files in /sys/devices/platform/fujitsu-laptop/; * others may be added at a later date. * * lcd_level - Screen brightness: contains a single integer in the * range 0..7. (rw) * * In addition to these platform device attributes the driver * registers itself in the Linux backlight control subsystem and is * available to userspace under /sys/class/backlight/fujitsu-laptop/. * * Hotkeys present on certain Fujitsu laptops (eg: the S6xxx series) are * also supported by this driver. * * This driver has been tested on a Fujitsu Lifebook S6410, S7020 and * P8010. It should work on most P-series and S-series Lifebooks, but * YMMV. * * The module parameter use_alt_lcd_levels switches between different ACPI * brightness controls which are used by different Fujitsu laptops. In most * cases the correct method is automatically detected. "use_alt_lcd_levels=1" * is applicable for a Fujitsu Lifebook S6410 if autodetection fails. * */ #include #include #include #include #include #include #include #include #include #include #include #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE) #include #endif #define FUJITSU_DRIVER_VERSION "0.6.0" #define FUJITSU_LCD_N_LEVELS 8 #define ACPI_FUJITSU_CLASS "fujitsu" #define ACPI_FUJITSU_HID "FUJ02B1" #define ACPI_FUJITSU_DRIVER_NAME "Fujitsu laptop FUJ02B1 ACPI brightness driver" #define ACPI_FUJITSU_DEVICE_NAME "Fujitsu FUJ02B1" #define ACPI_FUJITSU_HOTKEY_HID "FUJ02E3" #define ACPI_FUJITSU_HOTKEY_DRIVER_NAME "Fujitsu laptop FUJ02E3 ACPI hotkeys driver" #define ACPI_FUJITSU_HOTKEY_DEVICE_NAME "Fujitsu FUJ02E3" #define ACPI_FUJITSU_NOTIFY_CODE1 0x80 #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 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE) /* 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 #define KEY3_CODE 0x412 #define KEY4_CODE 0x413 #define MAX_HOTKEY_RINGBUFFER_SIZE 100 #define RINGBUFFERSIZE 40 /* Debugging */ #define FUJLAPTOP_LOG ACPI_FUJITSU_HID ": " #define FUJLAPTOP_ERR KERN_ERR FUJLAPTOP_LOG #define FUJLAPTOP_NOTICE KERN_NOTICE FUJLAPTOP_LOG #define FUJLAPTOP_INFO KERN_INFO FUJLAPTOP_LOG #define FUJLAPTOP_DEBUG KERN_DEBUG FUJLAPTOP_LOG #define FUJLAPTOP_DBG_ALL 0xffff #define FUJLAPTOP_DBG_ERROR 0x0001 #define FUJLAPTOP_DBG_WARN 0x0002 #define FUJLAPTOP_DBG_INFO 0x0004 #define FUJLAPTOP_DBG_TRACE 0x0008 #define dbg_printk(a_dbg_level, format, arg...) \ do { if (dbg_level & a_dbg_level) \ printk(FUJLAPTOP_DEBUG "%s: " format, __func__ , ## arg); \ } while (0) #ifdef CONFIG_FUJITSU_LAPTOP_DEBUG #define vdbg_printk(a_dbg_level, format, arg...) \ dbg_printk(a_dbg_level, format, ## arg) #else #define vdbg_printk(a_dbg_level, format, arg...) #endif /* Device controlling the backlight and associated keys */ struct fujitsu_t { acpi_handle acpi_handle; struct acpi_device *dev; struct input_dev *input; char phys[32]; struct backlight_device *bl_device; struct platform_device *pf_device; int keycode1, keycode2, keycode3, keycode4; unsigned int max_brightness; unsigned int brightness_changed; unsigned int brightness_level; }; static struct fujitsu_t *fujitsu; static int use_alt_lcd_levels = -1; static int disable_brightness_adjust = -1; /* Device used to access other hotkeys on the laptop */ struct fujitsu_hotkey_t { acpi_handle acpi_handle; struct acpi_device *dev; struct input_dev *input; char phys[32]; struct platform_device *pf_device; struct kfifo fifo; spinlock_t fifo_lock; int rfkill_supported; int rfkill_state; int logolamp_registered; int kblamps_registered; }; static struct fujitsu_hotkey_t *fujitsu_hotkey; static void acpi_fujitsu_hotkey_notify(struct acpi_device *device, u32 event); #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE) 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(struct acpi_device *device, u32 event); /* 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, ¶ms[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; } #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE) /* 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) { acpi_status status = AE_OK; union acpi_object arg0 = { ACPI_TYPE_INTEGER }; struct acpi_object_list arg_list = { 1, &arg0 }; acpi_handle handle = NULL; vdbg_printk(FUJLAPTOP_DBG_TRACE, "set lcd level via SBLL [%d]\n", level); if (level < 0 || level >= fujitsu->max_brightness) return -EINVAL; status = acpi_get_handle(fujitsu->acpi_handle, "SBLL", &handle); if (ACPI_FAILURE(status)) { vdbg_printk(FUJLAPTOP_DBG_ERROR, "SBLL not present\n"); return -ENODEV; } arg0.integer.value = level; status = acpi_evaluate_object(handle, NULL, &arg_list, NULL); if (ACPI_FAILURE(status)) return -ENODEV; return 0; } static int set_lcd_level_alt(int level) { acpi_status status = AE_OK; union acpi_object arg0 = { ACPI_TYPE_INTEGER }; struct acpi_object_list arg_list = { 1, &arg0 }; acpi_handle handle = NULL; vdbg_printk(FUJLAPTOP_DBG_TRACE, "set lcd level via SBL2 [%d]\n", level); if (level < 0 || level >= fujitsu->max_brightness) return -EINVAL; status = acpi_get_handle(fujitsu->acpi_handle, "SBL2", &handle); if (ACPI_FAILURE(status)) { vdbg_printk(FUJLAPTOP_DBG_ERROR, "SBL2 not present\n"); return -ENODEV; } arg0.integer.value = level; status = acpi_evaluate_object(handle, NULL, &arg_list, NULL); if (ACPI_FAILURE(status)) return -ENODEV; return 0; } static int get_lcd_level(void) { unsigned long long state = 0; acpi_status status = AE_OK; vdbg_printk(FUJLAPTOP_DBG_TRACE, "get lcd level via GBLL\n"); status = acpi_evaluate_integer(fujitsu->acpi_handle, "GBLL", NULL, &state); if (ACPI_FAILURE(status)) return 0; fujitsu->brightness_level = state & 0x0fffffff; if (state & 0x80000000) fujitsu->brightness_changed = 1; else fujitsu->brightness_changed = 0; return fujitsu->brightness_level; } static int get_max_brightness(void) { unsigned long long state = 0; acpi_status status = AE_OK; vdbg_printk(FUJLAPTOP_DBG_TRACE, "get max lcd level via RBLL\n"); status = acpi_evaluate_integer(fujitsu->acpi_handle, "RBLL", NULL, &state); if (ACPI_FAILURE(status)) return -1; fujitsu->max_brightness = state; return fujitsu->max_brightness; } /* Backlight device stuff */ static int bl_get_brightness(struct backlight_device *b) { 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) ret = set_lcd_level_alt(b->props.brightness); else 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 = { .get_brightness = bl_get_brightness, .update_status = bl_update_status, }; /* Platform LCD brightness device */ static ssize_t show_max_brightness(struct device *dev, struct device_attribute *attr, char *buf) { int ret; ret = get_max_brightness(); if (ret < 0) return ret; return sprintf(buf, "%i\n", ret); } static ssize_t show_brightness_changed(struct device *dev, struct device_attribute *attr, char *buf) { int ret; ret = fujitsu->brightness_changed; if (ret < 0) return ret; return sprintf(buf, "%i\n", ret); } static ssize_t show_lcd_level(struct device *dev, struct device_attribute *attr, char *buf) { int ret; ret = get_lcd_level(); if (ret < 0) return ret; return sprintf(buf, "%i\n", ret); } static ssize_t store_lcd_level(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int level, ret; if (sscanf(buf, "%i", &level) != 1 || (level < 0 || level >= fujitsu->max_brightness)) return -EINVAL; if (use_alt_lcd_levels) ret = set_lcd_level_alt(level); else ret = set_lcd_level(level); if (ret < 0) return ret; ret = get_lcd_level(); if (ret < 0) return ret; return count; } static ssize_t ignore_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { return count; } static ssize_t show_lid_state(struct device *dev, struct device_attribute *attr, char *buf) { if (!(fujitsu_hotkey->rfkill_supported & 0x100)) return sprintf(buf, "unknown\n"); if (fujitsu_hotkey->rfkill_state & 0x100) return sprintf(buf, "open\n"); else return sprintf(buf, "closed\n"); } static ssize_t show_dock_state(struct device *dev, struct device_attribute *attr, char *buf) { if (!(fujitsu_hotkey->rfkill_supported & 0x200)) 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 show_radios_state(struct device *dev, struct device_attribute *attr, char *buf) { if (!(fujitsu_hotkey->rfkill_supported & 0x20)) 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 }; static struct attribute_group fujitsupf_attribute_group = { .attrs = fujitsupf_attributes }; static struct platform_driver fujitsupf_driver = { .driver = { .name = "fujitsu-laptop", .owner = THIS_MODULE, } }; static void dmi_check_cb_common(const struct dmi_system_id *id) { acpi_handle handle; printk(KERN_INFO "fujitsu-laptop: Identified laptop model '%s'.\n", id->ident); if (use_alt_lcd_levels == -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); } } static int dmi_check_cb_s6410(const struct dmi_system_id *id) { dmi_check_cb_common(id); fujitsu->keycode1 = KEY_SCREENLOCK; /* "Lock" */ fujitsu->keycode2 = KEY_HELP; /* "Mobility Center" */ return 0; } static int dmi_check_cb_s6420(const struct dmi_system_id *id) { dmi_check_cb_common(id); fujitsu->keycode1 = KEY_SCREENLOCK; /* "Lock" */ fujitsu->keycode2 = KEY_HELP; /* "Mobility Center" */ return 0; } static int dmi_check_cb_p8010(const struct dmi_system_id *id) { dmi_check_cb_common(id); fujitsu->keycode1 = KEY_HELP; /* "Support" */ fujitsu->keycode3 = KEY_SWITCHVIDEOMODE; /* "Presentation" */ fujitsu->keycode4 = KEY_WWW; /* "Internet" */ return 0; } static struct dmi_system_id fujitsu_dmi_table[] = { { .ident = "Fujitsu Siemens S6410", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK S6410"), }, .callback = dmi_check_cb_s6410}, { .ident = "Fujitsu Siemens S6420", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK S6420"), }, .callback = dmi_check_cb_s6420}, { .ident = "Fujitsu LifeBook P8010", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"), DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook P8010"), }, .callback = dmi_check_cb_p8010}, {} }; /* ACPI device for LCD brightness control */ static int acpi_fujitsu_add(struct acpi_device *device) { acpi_handle handle; int result = 0; int state = 0; struct input_dev *input; int error; if (!device) return -EINVAL; fujitsu->acpi_handle = device->handle; sprintf(acpi_device_name(device), "%s", ACPI_FUJITSU_DEVICE_NAME); sprintf(acpi_device_class(device), "%s", ACPI_FUJITSU_CLASS); device->driver_data = fujitsu; fujitsu->input = input = input_allocate_device(); if (!input) { error = -ENOMEM; goto err_stop; } snprintf(fujitsu->phys, sizeof(fujitsu->phys), "%s/video/input0", acpi_device_hid(device)); input->name = acpi_device_name(device); input->phys = fujitsu->phys; input->id.bustype = BUS_HOST; input->id.product = 0x06; input->dev.parent = &device->dev; input->evbit[0] = BIT(EV_KEY); set_bit(KEY_BRIGHTNESSUP, input->keybit); set_bit(KEY_BRIGHTNESSDOWN, input->keybit); set_bit(KEY_UNKNOWN, input->keybit); error = input_register_device(input); if (error) goto err_free_input_dev; result = acpi_bus_get_power(fujitsu->acpi_handle, &state); if (result) { printk(KERN_ERR "Error reading power state\n"); goto err_unregister_input_dev; } printk(KERN_INFO "ACPI: %s [%s] (%s)\n", acpi_device_name(device), acpi_device_bid(device), !device->power.state ? "on" : "off"); fujitsu->dev = device; if (ACPI_SUCCESS (acpi_get_handle(device->handle, METHOD_NAME__INI, &handle))) { vdbg_printk(FUJLAPTOP_DBG_INFO, "Invoking _INI\n"); if (ACPI_FAILURE (acpi_evaluate_object (device->handle, METHOD_NAME__INI, NULL, NULL))) printk(KERN_ERR "_INI Method failed\n"); } /* do config (detect defaults) */ use_alt_lcd_levels = use_alt_lcd_levels == 1 ? 1 : 0; disable_brightness_adjust = disable_brightness_adjust == 1 ? 1 : 0; vdbg_printk(FUJLAPTOP_DBG_INFO, "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; get_lcd_level(); return result; err_unregister_input_dev: input_unregister_device(input); input = NULL; err_free_input_dev: input_free_device(input); err_stop: return result; } static int acpi_fujitsu_remove(struct acpi_device *device, int type) { struct fujitsu_t *fujitsu = acpi_driver_data(device); struct input_dev *input = fujitsu->input; input_unregister_device(input); fujitsu->acpi_handle = NULL; return 0; } /* Brightness notify */ static void acpi_fujitsu_notify(struct acpi_device *device, u32 event) { struct input_dev *input; int keycode; int oldb, newb; input = fujitsu->input; switch (event) { case ACPI_FUJITSU_NOTIFY_CODE1: keycode = 0; oldb = fujitsu->brightness_level; 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) { if (disable_brightness_adjust != 1) { if (use_alt_lcd_levels) set_lcd_level_alt(newb); else set_lcd_level(newb); } 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) set_lcd_level_alt(newb); else set_lcd_level(newb); } acpi_bus_generate_proc_event(fujitsu->dev, ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS, 0); keycode = KEY_BRIGHTNESSDOWN; } break; default: keycode = KEY_UNKNOWN; vdbg_printk(FUJLAPTOP_DBG_WARN, "unsupported event [0x%x]\n", event); break; } if (keycode != 0) { input_report_key(input, keycode, 1); input_sync(input); input_report_key(input, keycode, 0); input_sync(input); } } /* ACPI device for hotkey handling */ static int acpi_fujitsu_hotkey_add(struct acpi_device *device) { acpi_handle handle; int result = 0; int state = 0; struct input_dev *input; int error; int i; if (!device) return -EINVAL; fujitsu_hotkey->acpi_handle = device->handle; sprintf(acpi_device_name(device), "%s", ACPI_FUJITSU_HOTKEY_DEVICE_NAME); sprintf(acpi_device_class(device), "%s", ACPI_FUJITSU_CLASS); device->driver_data = fujitsu_hotkey; /* kfifo */ spin_lock_init(&fujitsu_hotkey->fifo_lock); error = kfifo_alloc(&fujitsu_hotkey->fifo, RINGBUFFERSIZE * sizeof(int), GFP_KERNEL); if (error) { printk(KERN_ERR "kfifo_alloc failed\n"); goto err_stop; } fujitsu_hotkey->input = input = input_allocate_device(); if (!input) { error = -ENOMEM; goto err_free_fifo; } snprintf(fujitsu_hotkey->phys, sizeof(fujitsu_hotkey->phys), "%s/video/input0", acpi_device_hid(device)); input->name = acpi_device_name(device); input->phys = fujitsu_hotkey->phys; input->id.bustype = BUS_HOST; input->id.product = 0x06; input->dev.parent = &device->dev; set_bit(EV_KEY, input->evbit); set_bit(fujitsu->keycode1, input->keybit); set_bit(fujitsu->keycode2, input->keybit); set_bit(fujitsu->keycode3, input->keybit); set_bit(fujitsu->keycode4, input->keybit); set_bit(KEY_UNKNOWN, input->keybit); error = input_register_device(input); if (error) goto err_free_input_dev; result = acpi_bus_get_power(fujitsu_hotkey->acpi_handle, &state); if (result) { printk(KERN_ERR "Error reading power state\n"); goto err_unregister_input_dev; } printk(KERN_INFO "ACPI: %s [%s] (%s)\n", acpi_device_name(device), acpi_device_bid(device), !device->power.state ? "on" : "off"); fujitsu_hotkey->dev = device; if (ACPI_SUCCESS (acpi_get_handle(device->handle, METHOD_NAME__INI, &handle))) { vdbg_printk(FUJLAPTOP_DBG_INFO, "Invoking _INI\n"); if (ACPI_FAILURE (acpi_evaluate_object (device->handle, METHOD_NAME__INI, NULL, NULL))) printk(KERN_ERR "_INI Method failed\n"); } 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_supported = call_fext_func(FUNC_RFKILL, 0x0, 0x0, 0x0); /* Make sure our bitmask of supported functions is cleared if the RFKILL function block is not implemented, like on the S7020. */ if (fujitsu_hotkey->rfkill_supported == UNSUPPORTED_CMD) fujitsu_hotkey->rfkill_supported = 0; if (fujitsu_hotkey->rfkill_supported) 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)); #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE) 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; err_unregister_input_dev: input_unregister_device(input); input = NULL; err_free_input_dev: input_free_device(input); err_free_fifo: kfifo_free(&fujitsu_hotkey->fifo); err_stop: return result; } static int acpi_fujitsu_hotkey_remove(struct acpi_device *device, int type) { struct fujitsu_hotkey_t *fujitsu_hotkey = acpi_driver_data(device); struct input_dev *input = fujitsu_hotkey->input; #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE) if (fujitsu_hotkey->logolamp_registered) led_classdev_unregister(&logolamp_led); if (fujitsu_hotkey->kblamps_registered) led_classdev_unregister(&kblamps_led); #endif input_unregister_device(input); kfifo_free(&fujitsu_hotkey->fifo); fujitsu_hotkey->acpi_handle = NULL; return 0; } static void acpi_fujitsu_hotkey_notify(struct acpi_device *device, u32 event) { struct input_dev *input; int keycode, keycode_r; unsigned int irb = 1; int i, status; input = fujitsu_hotkey->input; if (fujitsu_hotkey->rfkill_supported) fujitsu_hotkey->rfkill_state = call_fext_func(FUNC_RFKILL, 0x4, 0x0, 0x0); switch (event) { case ACPI_FUJITSU_NOTIFY_CODE1: i = 0; 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; break; case KEY2_CODE: keycode = fujitsu->keycode2; break; case KEY3_CODE: keycode = fujitsu->keycode3; break; case KEY4_CODE: keycode = fujitsu->keycode4; break; case 0: keycode = 0; break; default: vdbg_printk(FUJLAPTOP_DBG_WARN, "Unknown GIRB result [%x]\n", irb); keycode = -1; break; } if (keycode > 0) { vdbg_printk(FUJLAPTOP_DBG_TRACE, "Push keycode into ringbuffer [%d]\n", keycode); status = kfifo_in_locked(&fujitsu_hotkey->fifo, (unsigned char *)&keycode, sizeof(keycode), &fujitsu_hotkey->fifo_lock); if (status != sizeof(keycode)) { vdbg_printk(FUJLAPTOP_DBG_WARN, "Could not push keycode [0x%x]\n", keycode); } else { input_report_key(input, keycode, 1); input_sync(input); } } else if (keycode == 0) { while ((status = kfifo_out_locked( &fujitsu_hotkey->fifo, (unsigned char *) &keycode_r, sizeof(keycode_r), &fujitsu_hotkey->fifo_lock)) == sizeof(keycode_r)) { input_report_key(input, keycode_r, 0); input_sync(input); vdbg_printk(FUJLAPTOP_DBG_TRACE, "Pop keycode from ringbuffer [%d]\n", keycode_r); } } } break; default: keycode = KEY_UNKNOWN; vdbg_printk(FUJLAPTOP_DBG_WARN, "Unsupported event [0x%x]\n", event); input_report_key(input, keycode, 1); input_sync(input); input_report_key(input, keycode, 0); input_sync(input); break; } } /* Initialization */ static const struct acpi_device_id fujitsu_device_ids[] = { {ACPI_FUJITSU_HID, 0}, {"", 0}, }; static struct acpi_driver acpi_fujitsu_driver = { .name = ACPI_FUJITSU_DRIVER_NAME, .class = ACPI_FUJITSU_CLASS, .ids = fujitsu_device_ids, .ops = { .add = acpi_fujitsu_add, .remove = acpi_fujitsu_remove, .notify = acpi_fujitsu_notify, }, }; static const struct acpi_device_id fujitsu_hotkey_device_ids[] = { {ACPI_FUJITSU_HOTKEY_HID, 0}, {"", 0}, }; static struct acpi_driver acpi_fujitsu_hotkey_driver = { .name = ACPI_FUJITSU_HOTKEY_DRIVER_NAME, .class = ACPI_FUJITSU_CLASS, .ids = fujitsu_hotkey_device_ids, .ops = { .add = acpi_fujitsu_hotkey_add, .remove = acpi_fujitsu_hotkey_remove, .notify = acpi_fujitsu_hotkey_notify, }, }; static int __init fujitsu_init(void) { int ret, result, max_brightness; if (acpi_disabled) return -ENODEV; fujitsu = kzalloc(sizeof(struct fujitsu_t), GFP_KERNEL); if (!fujitsu) return -ENOMEM; fujitsu->keycode1 = KEY_PROG1; fujitsu->keycode2 = KEY_PROG2; fujitsu->keycode3 = KEY_PROG3; fujitsu->keycode4 = KEY_PROG4; dmi_check_system(fujitsu_dmi_table); result = acpi_bus_register_driver(&acpi_fujitsu_driver); if (result < 0) { ret = -ENODEV; goto fail_acpi; } /* Register platform stuff */ fujitsu->pf_device = platform_device_alloc("fujitsu-laptop", -1); if (!fujitsu->pf_device) { ret = -ENOMEM; goto fail_platform_driver; } ret = platform_device_add(fujitsu->pf_device); if (ret) goto fail_platform_device1; ret = sysfs_create_group(&fujitsu->pf_device->dev.kobj, &fujitsupf_attribute_group); if (ret) goto fail_platform_device2; /* Register backlight stuff */ if (!acpi_video_backlight_support()) { struct backlight_properties props; memset(&props, 0, sizeof(struct backlight_properties)); max_brightness = fujitsu->max_brightness; props.max_brightness = max_brightness - 1; fujitsu->bl_device = backlight_device_register("fujitsu-laptop", NULL, NULL, &fujitsubl_ops, &props); if (IS_ERR(fujitsu->bl_device)) { ret = PTR_ERR(fujitsu->bl_device); fujitsu->bl_device = NULL; goto fail_sysfs_group; } fujitsu->bl_device->props.brightness = fujitsu->brightness_level; } ret = platform_driver_register(&fujitsupf_driver); if (ret) goto fail_backlight; /* Register hotkey driver */ fujitsu_hotkey = kzalloc(sizeof(struct fujitsu_hotkey_t), GFP_KERNEL); if (!fujitsu_hotkey) { ret = -ENOMEM; goto fail_hotkey; } result = acpi_bus_register_driver(&acpi_fujitsu_hotkey_driver); if (result < 0) { ret = -ENODEV; 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"); return 0; fail_hotkey1: kfree(fujitsu_hotkey); fail_hotkey: platform_driver_unregister(&fujitsupf_driver); fail_backlight: if (fujitsu->bl_device) backlight_device_unregister(fujitsu->bl_device); fail_sysfs_group: sysfs_remove_group(&fujitsu->pf_device->dev.kobj, &fujitsupf_attribute_group); fail_platform_device2: platform_device_del(fujitsu->pf_device); fail_platform_device1: platform_device_put(fujitsu->pf_device); fail_platform_driver: acpi_bus_unregister_driver(&acpi_fujitsu_driver); fail_acpi: kfree(fujitsu); return ret; } static void __exit fujitsu_cleanup(void) { acpi_bus_unregister_driver(&acpi_fujitsu_hotkey_driver); kfree(fujitsu_hotkey); platform_driver_unregister(&fujitsupf_driver); if (fujitsu->bl_device) backlight_device_unregister(fujitsu->bl_device); sysfs_remove_group(&fujitsu->pf_device->dev.kobj, &fujitsupf_attribute_group); platform_device_unregister(fujitsu->pf_device); acpi_bus_unregister_driver(&acpi_fujitsu_driver); kfree(fujitsu); printk(KERN_INFO "fujitsu-laptop: driver unloaded.\n"); } module_init(fujitsu_init); 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_adjust, uint, 0644); MODULE_PARM_DESC(disable_brightness_adjust, "Disable brightness adjustment ."); #ifdef CONFIG_FUJITSU_LAPTOP_DEBUG module_param_named(debug, dbg_level, uint, 0644); MODULE_PARM_DESC(debug, "Sets debug level bit-mask"); #endif 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[] = { {.id = "FUJ02bf"}, {.id = "FUJ02B1"}, {.id = "FUJ02E3"}, {.id = ""} }; MODULE_DEVICE_TABLE(pnp, pnp_ids);