/*-*-linux-c-*-*/ /* Copyright (C) 2007,2008 Jonathan Woithe <jwoithe@physics.adelaide.edu.au> Copyright (C) 2008 Peter Gruber <nokos@gmx.net> Based on earlier work: Copyright (C) 2003 Shane Spencer <shane@bogomip.com> Adrian Yee <brewt-fujitsu@brewt.org> 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 and S7020. 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 <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> #include <linux/acpi.h> #include <linux/dmi.h> #include <linux/backlight.h> #include <linux/input.h> #include <linux/kfifo.h> #include <linux/video_output.h> #include <linux/platform_device.h> #define FUJITSU_DRIVER_VERSION "0.4.2" #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 /* Hotkey details */ #define LOCK_KEY 0x410 /* codes for the keys in the GIRB register */ #define DISPLAY_KEY 0x411 /* keys are mapped to KEY_SCREENLOCK (the key with the key symbol) */ #define ENERGY_KEY 0x412 /* KEY_MEDIA (the key with the laptop symbol, KEY_EMAIL (E key)) */ #define REST_KEY 0x413 /* KEY_SUSPEND (R key) */ #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; 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_keys = -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; unsigned int irb; /* info about the pressed buttons */ }; static struct fujitsu_hotkey_t *fujitsu_hotkey; static void acpi_fujitsu_hotkey_notify(acpi_handle handle, u32 event, void *data); #ifdef CONFIG_FUJITSU_LAPTOP_DEBUG static u32 dbg_level = 0x03; #endif static void acpi_fujitsu_notify(acpi_handle handle, u32 event, void *data); /* 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; if (!fujitsu) 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; if (!fujitsu) 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 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 (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; } static int get_max_brightness(void) { unsigned 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 (status < 0) return status; fujitsu->max_brightness = state; return fujitsu->max_brightness; } static int get_lcd_level_alt(void) { unsigned 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(); } static int bl_update_status(struct backlight_device *b) { if (use_alt_lcd_levels) return set_lcd_level_alt(b->props.brightness); else return set_lcd_level(b->props.brightness); } 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; if (use_alt_lcd_levels) ret = get_lcd_level_alt(); else 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; if (use_alt_lcd_levels) ret = get_lcd_level_alt(); else ret = get_lcd_level(); if (ret < 0) return ret; return count; } /* Hardware access for hotkey device */ static int get_irb(void) { unsigned 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; fujitsu_hotkey->irb = state; return fujitsu_hotkey->irb; } static ssize_t ignore_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { return count; } 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 struct attribute *fujitsupf_attributes[] = { &dev_attr_brightness_changed.attr, &dev_attr_max_brightness.attr, &dev_attr_lcd_level.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 int dmi_check_cb_s6410(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; } return 0; } static struct dmi_system_id __initdata fujitsu_dmi_table[] = { { .ident = "Fujitsu Siemens", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK S6410"), }, .callback = dmi_check_cb_s6410}, { .ident = "FUJITSU LifeBook P8010", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"), DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook P8010"), }, .callback = dmi_check_cb_s6410}, {} }; /* ACPI device for LCD brightness control */ static int acpi_fujitsu_add(struct acpi_device *device) { acpi_status status; 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); acpi_driver_data(device) = fujitsu; status = acpi_install_notify_handler(device->handle, ACPI_DEVICE_NOTIFY, acpi_fujitsu_notify, fujitsu); if (ACPI_FAILURE(status)) { printk(KERN_ERR "Error installing notify handler\n"); error = -ENODEV; goto err_stop; } fujitsu->input = input = input_allocate_device(); if (!input) { error = -ENOMEM; goto err_uninstall_notify; } 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 end; } printk(KERN_INFO PREFIX "%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) */ dmi_check_system(fujitsu_dmi_table); 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); 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(); return result; end: err_free_input_dev: input_free_device(input); err_uninstall_notify: acpi_remove_notify_handler(device->handle, ACPI_DEVICE_NOTIFY, acpi_fujitsu_notify); err_stop: return result; } static int acpi_fujitsu_remove(struct acpi_device *device, int type) { acpi_status status; struct fujitsu_t *fujitsu = NULL; if (!device || !acpi_driver_data(device)) return -EINVAL; fujitsu = acpi_driver_data(device); status = acpi_remove_notify_handler(fujitsu->acpi_handle, ACPI_DEVICE_NOTIFY, acpi_fujitsu_notify); if (!device || !acpi_driver_data(device)) return -EINVAL; fujitsu->acpi_handle = NULL; return 0; } /* Brightness notify */ static void acpi_fujitsu_notify(acpi_handle handle, u32 event, void *data) { 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(); /* the alt version always yields changed */ 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 (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; } } else 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_DEC_BRIGHTNESS, 0); keycode = KEY_BRIGHTNESSDOWN; } } else { keycode = KEY_UNKNOWN; } 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); } return; } /* ACPI device for hotkey handling */ static int acpi_fujitsu_hotkey_add(struct acpi_device *device) { acpi_status status; 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); acpi_driver_data(device) = fujitsu_hotkey; status = acpi_install_notify_handler(device->handle, ACPI_DEVICE_NOTIFY, acpi_fujitsu_hotkey_notify, fujitsu_hotkey); if (ACPI_FAILURE(status)) { printk(KERN_ERR "Error installing notify handler\n"); error = -ENODEV; goto err_stop; } /* kfifo */ spin_lock_init(&fujitsu_hotkey->fifo_lock); fujitsu_hotkey->fifo = kfifo_alloc(RINGBUFFERSIZE * sizeof(int), GFP_KERNEL, &fujitsu_hotkey->fifo_lock); if (IS_ERR(fujitsu_hotkey->fifo)) { printk(KERN_ERR "kfifo_alloc failed\n"); error = PTR_ERR(fujitsu_hotkey->fifo); goto err_stop; } fujitsu_hotkey->input = input = input_allocate_device(); if (!input) { error = -ENOMEM; goto err_uninstall_notify; } 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; input->evbit[0] = BIT(EV_KEY); set_bit(KEY_SCREENLOCK, input->keybit); set_bit(KEY_MEDIA, input->keybit); set_bit(KEY_EMAIL, input->keybit); set_bit(KEY_SUSPEND, 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 end; } printk(KERN_INFO PREFIX "%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; /* Discard hotkey ringbuffer */ while (get_irb() != 0 && (i++) < MAX_HOTKEY_RINGBUFFER_SIZE) ; vdbg_printk(FUJLAPTOP_DBG_INFO, "Discarded %i ringbuffer entries\n", i); return result; end: err_free_input_dev: input_free_device(input); err_uninstall_notify: acpi_remove_notify_handler(device->handle, ACPI_DEVICE_NOTIFY, acpi_fujitsu_hotkey_notify); kfifo_free(fujitsu_hotkey->fifo); err_stop: return result; } static int acpi_fujitsu_hotkey_remove(struct acpi_device *device, int type) { acpi_status status; struct fujitsu_hotkey_t *fujitsu_hotkey = NULL; if (!device || !acpi_driver_data(device)) return -EINVAL; fujitsu_hotkey = acpi_driver_data(device); status = acpi_remove_notify_handler(fujitsu_hotkey->acpi_handle, ACPI_DEVICE_NOTIFY, acpi_fujitsu_hotkey_notify); fujitsu_hotkey->acpi_handle = NULL; kfifo_free(fujitsu_hotkey->fifo); return 0; } static void acpi_fujitsu_hotkey_notify(acpi_handle handle, u32 event, void *data) { struct input_dev *input; int keycode, keycode_r; unsigned int irb = 1; int i, status; input = fujitsu_hotkey->input; vdbg_printk(FUJLAPTOP_DBG_TRACE, "Hotkey event\n"); 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); switch (irb & 0x4ff) { case LOCK_KEY: keycode = KEY_SCREENLOCK; break; case DISPLAY_KEY: keycode = KEY_MEDIA; break; case ENERGY_KEY: keycode = KEY_EMAIL; break; case REST_KEY: keycode = KEY_SUSPEND; 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_put(fujitsu_hotkey->fifo, (unsigned char *)&keycode, sizeof(keycode)); 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_get (fujitsu_hotkey->fifo, (unsigned char *) &keycode_r, sizeof (keycode_r))) == 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; } return; } /* 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, }, }; 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, }, }; static int __init fujitsu_init(void) { int ret, result, max_brightness; if (acpi_disabled) return -ENODEV; fujitsu = kmalloc(sizeof(struct fujitsu_t), GFP_KERNEL); if (!fujitsu) return -ENOMEM; memset(fujitsu, 0, sizeof(struct fujitsu_t)); 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 */ fujitsu->bl_device = backlight_device_register("fujitsu-laptop", NULL, NULL, &fujitsubl_ops); if (IS_ERR(fujitsu->bl_device)) return PTR_ERR(fujitsu->bl_device); max_brightness = fujitsu->max_brightness; fujitsu->bl_device->props.max_brightness = max_brightness - 1; fujitsu->bl_device->props.brightness = fujitsu->brightness_level; ret = platform_driver_register(&fujitsupf_driver); if (ret) goto fail_backlight; /* Register hotkey driver */ fujitsu_hotkey = kmalloc(sizeof(struct fujitsu_hotkey_t), GFP_KERNEL); if (!fujitsu_hotkey) { ret = -ENOMEM; goto fail_hotkey; } memset(fujitsu_hotkey, 0, sizeof(struct fujitsu_hotkey_t)); result = acpi_bus_register_driver(&acpi_fujitsu_hotkey_driver); if (result < 0) { ret = -ENODEV; goto fail_hotkey1; } 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: backlight_device_unregister(fujitsu->bl_device); 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) { sysfs_remove_group(&fujitsu->pf_device->dev.kobj, &fujitsupf_attribute_group); platform_device_unregister(fujitsu->pf_device); platform_driver_unregister(&fujitsupf_driver); backlight_device_unregister(fujitsu->bl_device); acpi_bus_unregister_driver(&acpi_fujitsu_driver); kfree(fujitsu); acpi_bus_unregister_driver(&acpi_fujitsu_hotkey_driver); kfree(fujitsu_hotkey); 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_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 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_DESCRIPTION("Fujitsu laptop extras support"); MODULE_VERSION(FUJITSU_DRIVER_VERSION); MODULE_LICENSE("GPL"); MODULE_ALIAS ("dmi:*:svnFUJITSUSIEMENS:*:pvr:rvnFUJITSU:rnFJNB1D3:*:cvrS6410:*"); 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);