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Diffstat (limited to 'drivers/misc/panasonic-laptop.c')
-rw-r--r--drivers/misc/panasonic-laptop.c766
1 files changed, 0 insertions, 766 deletions
diff --git a/drivers/misc/panasonic-laptop.c b/drivers/misc/panasonic-laptop.c
deleted file mode 100644
index 4a1bc64485d5..000000000000
--- a/drivers/misc/panasonic-laptop.c
+++ /dev/null
@@ -1,766 +0,0 @@
-/*
- * Panasonic HotKey and LCD brightness control driver
- * (C) 2004 Hiroshi Miura <miura@da-cha.org>
- * (C) 2004 NTT DATA Intellilink Co. http://www.intellilink.co.jp/
- * (C) YOKOTA Hiroshi <yokota (at) netlab. is. tsukuba. ac. jp>
- * (C) 2004 David Bronaugh <dbronaugh>
- * (C) 2006-2008 Harald Welte <laforge@gnumonks.org>
- *
- * derived from toshiba_acpi.c, Copyright (C) 2002-2004 John Belmonte
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * publicshed by the Free Software Foundation.
- *
- * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- *---------------------------------------------------------------------------
- *
- * ChangeLog:
- * Sep.23, 2008 Harald Welte <laforge@gnumonks.org>
- * -v0.95 rename driver from drivers/acpi/pcc_acpi.c to
- * drivers/misc/panasonic-laptop.c
- *
- * Jul.04, 2008 Harald Welte <laforge@gnumonks.org>
- * -v0.94 replace /proc interface with device attributes
- * support {set,get}keycode on th input device
- *
- * Jun.27, 2008 Harald Welte <laforge@gnumonks.org>
- * -v0.92 merge with 2.6.26-rc6 input API changes
- * remove broken <= 2.6.15 kernel support
- * resolve all compiler warnings
- * various coding style fixes (checkpatch.pl)
- * add support for backlight api
- * major code restructuring
- *
- * Dac.28, 2007 Harald Welte <laforge@gnumonks.org>
- * -v0.91 merge with 2.6.24-rc6 ACPI changes
- *
- * Nov.04, 2006 Hiroshi Miura <miura@da-cha.org>
- * -v0.9 remove warning about section reference.
- * remove acpi_os_free
- * add /proc/acpi/pcc/brightness interface for HAL access
- * merge dbronaugh's enhancement
- * Aug.17, 2004 David Bronaugh (dbronaugh)
- * - Added screen brightness setting interface
- * Thanks to FreeBSD crew (acpi_panasonic.c)
- * for the ideas I needed to accomplish it
- *
- * May.29, 2006 Hiroshi Miura <miura@da-cha.org>
- * -v0.8.4 follow to change keyinput structure
- * thanks Fabian Yamaguchi <fabs@cs.tu-berlin.de>,
- * Jacob Bower <jacob.bower@ic.ac.uk> and
- * Hiroshi Yokota for providing solutions.
- *
- * Oct.02, 2004 Hiroshi Miura <miura@da-cha.org>
- * -v0.8.2 merge code of YOKOTA Hiroshi
- * <yokota@netlab.is.tsukuba.ac.jp>.
- * Add sticky key mode interface.
- * Refactoring acpi_pcc_generate_keyinput().
- *
- * Sep.15, 2004 Hiroshi Miura <miura@da-cha.org>
- * -v0.8 Generate key input event on input subsystem.
- * This is based on yet another driver written by
- * Ryuta Nakanishi.
- *
- * Sep.10, 2004 Hiroshi Miura <miura@da-cha.org>
- * -v0.7 Change proc interface functions using seq_file
- * facility as same as other ACPI drivers.
- *
- * Aug.28, 2004 Hiroshi Miura <miura@da-cha.org>
- * -v0.6.4 Fix a silly error with status checking
- *
- * Aug.25, 2004 Hiroshi Miura <miura@da-cha.org>
- * -v0.6.3 replace read_acpi_int by standard function
- * acpi_evaluate_integer
- * some clean up and make smart copyright notice.
- * fix return value of pcc_acpi_get_key()
- * fix checking return value of acpi_bus_register_driver()
- *
- * Aug.22, 2004 David Bronaugh <dbronaugh@linuxboxen.org>
- * -v0.6.2 Add check on ACPI data (num_sifr)
- * Coding style cleanups, better error messages/handling
- * Fixed an off-by-one error in memory allocation
- *
- * Aug.21, 2004 David Bronaugh <dbronaugh@linuxboxen.org>
- * -v0.6.1 Fix a silly error with status checking
- *
- * Aug.20, 2004 David Bronaugh <dbronaugh@linuxboxen.org>
- * - v0.6 Correct brightness controls to reflect reality
- * based on information gleaned by Hiroshi Miura
- * and discussions with Hiroshi Miura
- *
- * Aug.10, 2004 Hiroshi Miura <miura@da-cha.org>
- * - v0.5 support LCD brightness control
- * based on the disclosed information by MEI.
- *
- * Jul.25, 2004 Hiroshi Miura <miura@da-cha.org>
- * - v0.4 first post version
- * add function to retrive SIFR
- *
- * Jul.24, 2004 Hiroshi Miura <miura@da-cha.org>
- * - v0.3 get proper status of hotkey
- *
- * Jul.22, 2004 Hiroshi Miura <miura@da-cha.org>
- * - v0.2 add HotKey handler
- *
- * Jul.17, 2004 Hiroshi Miura <miura@da-cha.org>
- * - v0.1 start from toshiba_acpi driver written by John Belmonte
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/backlight.h>
-#include <linux/ctype.h>
-#include <linux/seq_file.h>
-#include <linux/uaccess.h>
-#include <acpi/acpi_bus.h>
-#include <acpi/acpi_drivers.h>
-#include <linux/input.h>
-
-
-#ifndef ACPI_HOTKEY_COMPONENT
-#define ACPI_HOTKEY_COMPONENT 0x10000000
-#endif
-
-#define _COMPONENT ACPI_HOTKEY_COMPONENT
-
-MODULE_AUTHOR("Hiroshi Miura, David Bronaugh and Harald Welte");
-MODULE_DESCRIPTION("ACPI HotKey driver for Panasonic Let's Note laptops");
-MODULE_LICENSE("GPL");
-
-#define LOGPREFIX "pcc_acpi: "
-
-/* Define ACPI PATHs */
-/* Lets note hotkeys */
-#define METHOD_HKEY_QUERY "HINF"
-#define METHOD_HKEY_SQTY "SQTY"
-#define METHOD_HKEY_SINF "SINF"
-#define METHOD_HKEY_SSET "SSET"
-#define HKEY_NOTIFY 0x80
-
-#define ACPI_PCC_DRIVER_NAME "Panasonic Laptop Support"
-#define ACPI_PCC_DEVICE_NAME "Hotkey"
-#define ACPI_PCC_CLASS "pcc"
-
-#define ACPI_PCC_INPUT_PHYS "panasonic/hkey0"
-
-/* LCD_TYPEs: 0 = Normal, 1 = Semi-transparent
- ENV_STATEs: Normal temp=0x01, High temp=0x81, N/A=0x00
-*/
-enum SINF_BITS { SINF_NUM_BATTERIES = 0,
- SINF_LCD_TYPE,
- SINF_AC_MAX_BRIGHT,
- SINF_AC_MIN_BRIGHT,
- SINF_AC_CUR_BRIGHT,
- SINF_DC_MAX_BRIGHT,
- SINF_DC_MIN_BRIGHT,
- SINF_DC_CUR_BRIGHT,
- SINF_MUTE,
- SINF_RESERVED,
- SINF_ENV_STATE,
- SINF_STICKY_KEY = 0x80,
- };
-/* R1 handles SINF_AC_CUR_BRIGHT as SINF_CUR_BRIGHT, doesn't know AC state */
-
-static int acpi_pcc_hotkey_add(struct acpi_device *device);
-static int acpi_pcc_hotkey_remove(struct acpi_device *device, int type);
-static int acpi_pcc_hotkey_resume(struct acpi_device *device);
-
-static const struct acpi_device_id pcc_device_ids[] = {
- { "MAT0012", 0},
- { "MAT0013", 0},
- { "MAT0018", 0},
- { "MAT0019", 0},
- { "", 0},
-};
-
-static struct acpi_driver acpi_pcc_driver = {
- .name = ACPI_PCC_DRIVER_NAME,
- .class = ACPI_PCC_CLASS,
- .ids = pcc_device_ids,
- .ops = {
- .add = acpi_pcc_hotkey_add,
- .remove = acpi_pcc_hotkey_remove,
- .resume = acpi_pcc_hotkey_resume,
- },
-};
-
-#define KEYMAP_SIZE 11
-static const int initial_keymap[KEYMAP_SIZE] = {
- /* 0 */ KEY_RESERVED,
- /* 1 */ KEY_BRIGHTNESSDOWN,
- /* 2 */ KEY_BRIGHTNESSUP,
- /* 3 */ KEY_DISPLAYTOGGLE,
- /* 4 */ KEY_MUTE,
- /* 5 */ KEY_VOLUMEDOWN,
- /* 6 */ KEY_VOLUMEUP,
- /* 7 */ KEY_SLEEP,
- /* 8 */ KEY_PROG1, /* Change CPU boost */
- /* 9 */ KEY_BATTERY,
- /* 10 */ KEY_SUSPEND,
-};
-
-struct pcc_acpi {
- acpi_handle handle;
- unsigned long num_sifr;
- int sticky_mode;
- u32 *sinf;
- struct acpi_device *device;
- struct input_dev *input_dev;
- struct backlight_device *backlight;
- int keymap[KEYMAP_SIZE];
-};
-
-struct pcc_keyinput {
- struct acpi_hotkey *hotkey;
-};
-
-/* method access functions */
-static int acpi_pcc_write_sset(struct pcc_acpi *pcc, int func, int val)
-{
- union acpi_object in_objs[] = {
- { .integer.type = ACPI_TYPE_INTEGER,
- .integer.value = func, },
- { .integer.type = ACPI_TYPE_INTEGER,
- .integer.value = val, },
- };
- struct acpi_object_list params = {
- .count = ARRAY_SIZE(in_objs),
- .pointer = in_objs,
- };
- acpi_status status = AE_OK;
-
- ACPI_FUNCTION_TRACE("acpi_pcc_write_sset");
-
- status = acpi_evaluate_object(pcc->handle, METHOD_HKEY_SSET,
- &params, NULL);
-
- return status == AE_OK;
-}
-
-static inline int acpi_pcc_get_sqty(struct acpi_device *device)
-{
- unsigned long long s;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE("acpi_pcc_get_sqty");
-
- status = acpi_evaluate_integer(device->handle, METHOD_HKEY_SQTY,
- NULL, &s);
- if (ACPI_SUCCESS(status))
- return s;
- else {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "evaluation error HKEY.SQTY\n"));
- return -EINVAL;
- }
-}
-
-static int acpi_pcc_retrieve_biosdata(struct pcc_acpi *pcc, u32 *sinf)
-{
- acpi_status status;
- struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL};
- union acpi_object *hkey = NULL;
- int i;
-
- ACPI_FUNCTION_TRACE("acpi_pcc_retrieve_biosdata");
-
- status = acpi_evaluate_object(pcc->handle, METHOD_HKEY_SINF, 0,
- &buffer);
- if (ACPI_FAILURE(status)) {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "evaluation error HKEY.SINF\n"));
- return 0;
- }
-
- hkey = buffer.pointer;
- if (!hkey || (hkey->type != ACPI_TYPE_PACKAGE)) {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid HKEY.SINF\n"));
- goto end;
- }
-
- if (pcc->num_sifr < hkey->package.count) {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "SQTY reports bad SINF length\n"));
- status = AE_ERROR;
- goto end;
- }
-
- for (i = 0; i < hkey->package.count; i++) {
- union acpi_object *element = &(hkey->package.elements[i]);
- if (likely(element->type == ACPI_TYPE_INTEGER)) {
- sinf[i] = element->integer.value;
- } else
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Invalid HKEY.SINF data\n"));
- }
- sinf[hkey->package.count] = -1;
-
-end:
- kfree(buffer.pointer);
- return status == AE_OK;
-}
-
-/* backlight API interface functions */
-
-/* This driver currently treats AC and DC brightness identical,
- * since we don't need to invent an interface to the core ACPI
- * logic to receive events in case a power supply is plugged in
- * or removed */
-
-static int bl_get(struct backlight_device *bd)
-{
- struct pcc_acpi *pcc = bl_get_data(bd);
-
- if (!acpi_pcc_retrieve_biosdata(pcc, pcc->sinf))
- return -EIO;
-
- return pcc->sinf[SINF_AC_CUR_BRIGHT];
-}
-
-static int bl_set_status(struct backlight_device *bd)
-{
- struct pcc_acpi *pcc = bl_get_data(bd);
- int bright = bd->props.brightness;
- int rc;
-
- if (!acpi_pcc_retrieve_biosdata(pcc, pcc->sinf))
- return -EIO;
-
- if (bright < pcc->sinf[SINF_AC_MIN_BRIGHT])
- bright = pcc->sinf[SINF_AC_MIN_BRIGHT];
-
- if (bright < pcc->sinf[SINF_DC_MIN_BRIGHT])
- bright = pcc->sinf[SINF_DC_MIN_BRIGHT];
-
- if (bright < pcc->sinf[SINF_AC_MIN_BRIGHT] ||
- bright > pcc->sinf[SINF_AC_MAX_BRIGHT])
- return -EINVAL;
-
- rc = acpi_pcc_write_sset(pcc, SINF_AC_CUR_BRIGHT, bright);
- if (rc < 0)
- return rc;
-
- return acpi_pcc_write_sset(pcc, SINF_DC_CUR_BRIGHT, bright);
-}
-
-static struct backlight_ops pcc_backlight_ops = {
- .get_brightness = bl_get,
- .update_status = bl_set_status,
-};
-
-
-/* sysfs user interface functions */
-
-static ssize_t show_numbatt(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- struct acpi_device *acpi = to_acpi_device(dev);
- struct pcc_acpi *pcc = acpi_driver_data(acpi);
-
- if (!acpi_pcc_retrieve_biosdata(pcc, pcc->sinf))
- return -EIO;
-
- return sprintf(buf, "%u\n", pcc->sinf[SINF_NUM_BATTERIES]);
-}
-
-static ssize_t show_lcdtype(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- struct acpi_device *acpi = to_acpi_device(dev);
- struct pcc_acpi *pcc = acpi_driver_data(acpi);
-
- if (!acpi_pcc_retrieve_biosdata(pcc, pcc->sinf))
- return -EIO;
-
- return sprintf(buf, "%u\n", pcc->sinf[SINF_LCD_TYPE]);
-}
-
-static ssize_t show_mute(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- struct acpi_device *acpi = to_acpi_device(dev);
- struct pcc_acpi *pcc = acpi_driver_data(acpi);
-
- if (!acpi_pcc_retrieve_biosdata(pcc, pcc->sinf))
- return -EIO;
-
- return sprintf(buf, "%u\n", pcc->sinf[SINF_MUTE]);
-}
-
-static ssize_t show_sticky(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- struct acpi_device *acpi = to_acpi_device(dev);
- struct pcc_acpi *pcc = acpi_driver_data(acpi);
-
- if (!acpi_pcc_retrieve_biosdata(pcc, pcc->sinf))
- return -EIO;
-
- return sprintf(buf, "%u\n", pcc->sinf[SINF_STICKY_KEY]);
-}
-
-static ssize_t set_sticky(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct acpi_device *acpi = to_acpi_device(dev);
- struct pcc_acpi *pcc = acpi_driver_data(acpi);
- int val;
-
- if (count && sscanf(buf, "%i", &val) == 1 &&
- (val == 0 || val == 1)) {
- acpi_pcc_write_sset(pcc, SINF_STICKY_KEY, val);
- pcc->sticky_mode = val;
- }
-
- return count;
-}
-
-static DEVICE_ATTR(numbatt, S_IRUGO, show_numbatt, NULL);
-static DEVICE_ATTR(lcdtype, S_IRUGO, show_lcdtype, NULL);
-static DEVICE_ATTR(mute, S_IRUGO, show_mute, NULL);
-static DEVICE_ATTR(sticky_key, S_IRUGO | S_IWUSR, show_sticky, set_sticky);
-
-static struct attribute *pcc_sysfs_entries[] = {
- &dev_attr_numbatt.attr,
- &dev_attr_lcdtype.attr,
- &dev_attr_mute.attr,
- &dev_attr_sticky_key.attr,
- NULL,
-};
-
-static struct attribute_group pcc_attr_group = {
- .name = NULL, /* put in device directory */
- .attrs = pcc_sysfs_entries,
-};
-
-
-/* hotkey input device driver */
-
-static int pcc_getkeycode(struct input_dev *dev, int scancode, int *keycode)
-{
- struct pcc_acpi *pcc = input_get_drvdata(dev);
-
- if (scancode >= ARRAY_SIZE(pcc->keymap))
- return -EINVAL;
-
- *keycode = pcc->keymap[scancode];
-
- return 0;
-}
-
-static int keymap_get_by_keycode(struct pcc_acpi *pcc, int keycode)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(pcc->keymap); i++) {
- if (pcc->keymap[i] == keycode)
- return i+1;
- }
-
- return 0;
-}
-
-static int pcc_setkeycode(struct input_dev *dev, int scancode, int keycode)
-{
- struct pcc_acpi *pcc = input_get_drvdata(dev);
- int oldkeycode;
-
- if (scancode >= ARRAY_SIZE(pcc->keymap))
- return -EINVAL;
-
- if (keycode < 0 || keycode > KEY_MAX)
- return -EINVAL;
-
- oldkeycode = pcc->keymap[scancode];
- pcc->keymap[scancode] = keycode;
-
- set_bit(keycode, dev->keybit);
-
- if (!keymap_get_by_keycode(pcc, oldkeycode))
- clear_bit(oldkeycode, dev->keybit);
-
- return 0;
-}
-
-static void acpi_pcc_generate_keyinput(struct pcc_acpi *pcc)
-{
- struct input_dev *hotk_input_dev = pcc->input_dev;
- int rc;
- int key_code, hkey_num;
- unsigned long long result;
-
- ACPI_FUNCTION_TRACE("acpi_pcc_generate_keyinput");
-
- rc = acpi_evaluate_integer(pcc->handle, METHOD_HKEY_QUERY,
- NULL, &result);
- if (!ACPI_SUCCESS(rc)) {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "error getting hotkey status\n"));
- return;
- }
-
- acpi_bus_generate_proc_event(pcc->device, HKEY_NOTIFY, result);
-
- hkey_num = result & 0xf;
-
- if (hkey_num < 0 || hkey_num > ARRAY_SIZE(pcc->keymap)) {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "hotkey number out of range: %d\n",
- hkey_num));
- return;
- }
-
- key_code = pcc->keymap[hkey_num];
-
- if (key_code != KEY_RESERVED) {
- int pushed = (result & 0x80) ? TRUE : FALSE;
-
- input_report_key(hotk_input_dev, key_code, pushed);
- input_sync(hotk_input_dev);
- }
-
- return;
-}
-
-static void acpi_pcc_hotkey_notify(acpi_handle handle, u32 event, void *data)
-{
- struct pcc_acpi *pcc = (struct pcc_acpi *) data;
-
- ACPI_FUNCTION_TRACE("acpi_pcc_hotkey_notify");
-
- switch (event) {
- case HKEY_NOTIFY:
- acpi_pcc_generate_keyinput(pcc);
- break;
- default:
- /* nothing to do */
- break;
- }
-}
-
-static int acpi_pcc_init_input(struct pcc_acpi *pcc)
-{
- int i, rc;
-
- ACPI_FUNCTION_TRACE("acpi_pcc_init_input");
-
- pcc->input_dev = input_allocate_device();
- if (!pcc->input_dev) {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Couldn't allocate input device for hotkey"));
- return -ENOMEM;
- }
-
- pcc->input_dev->evbit[0] = BIT(EV_KEY);
-
- pcc->input_dev->name = ACPI_PCC_DRIVER_NAME;
- pcc->input_dev->phys = ACPI_PCC_INPUT_PHYS;
- pcc->input_dev->id.bustype = BUS_HOST;
- pcc->input_dev->id.vendor = 0x0001;
- pcc->input_dev->id.product = 0x0001;
- pcc->input_dev->id.version = 0x0100;
- pcc->input_dev->getkeycode = pcc_getkeycode;
- pcc->input_dev->setkeycode = pcc_setkeycode;
-
- /* load initial keymap */
- memcpy(pcc->keymap, initial_keymap, sizeof(pcc->keymap));
-
- for (i = 0; i < ARRAY_SIZE(pcc->keymap); i++)
- __set_bit(pcc->keymap[i], pcc->input_dev->keybit);
- __clear_bit(KEY_RESERVED, pcc->input_dev->keybit);
-
- input_set_drvdata(pcc->input_dev, pcc);
-
- rc = input_register_device(pcc->input_dev);
- if (rc < 0)
- input_free_device(pcc->input_dev);
-
- return rc;
-}
-
-/* kernel module interface */
-
-static int acpi_pcc_hotkey_resume(struct acpi_device *device)
-{
- struct pcc_acpi *pcc = acpi_driver_data(device);
- acpi_status status = AE_OK;
-
- ACPI_FUNCTION_TRACE("acpi_pcc_hotkey_resume");
-
- if (device == NULL || pcc == NULL)
- return -EINVAL;
-
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Sticky mode restore: %d\n",
- pcc->sticky_mode));
-
- status = acpi_pcc_write_sset(pcc, SINF_STICKY_KEY, pcc->sticky_mode);
-
- return status == AE_OK ? 0 : -EINVAL;
-}
-
-static int acpi_pcc_hotkey_add(struct acpi_device *device)
-{
- acpi_status status;
- struct pcc_acpi *pcc;
- int num_sifr, result;
-
- ACPI_FUNCTION_TRACE("acpi_pcc_hotkey_add");
-
- if (!device)
- return -EINVAL;
-
- num_sifr = acpi_pcc_get_sqty(device);
-
- if (num_sifr > 255) {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "num_sifr too large"));
- return -ENODEV;
- }
-
- pcc = kzalloc(sizeof(struct pcc_acpi), GFP_KERNEL);
- if (!pcc) {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Couldn't allocate mem for pcc"));
- return -ENOMEM;
- }
-
- pcc->sinf = kzalloc(sizeof(u32) * (num_sifr + 1), GFP_KERNEL);
- if (!pcc->sinf) {
- result = -ENOMEM;
- goto out_hotkey;
- }
-
- pcc->device = device;
- pcc->handle = device->handle;
- pcc->num_sifr = num_sifr;
- device->driver_data = pcc;
- strcpy(acpi_device_name(device), ACPI_PCC_DEVICE_NAME);
- strcpy(acpi_device_class(device), ACPI_PCC_CLASS);
-
- result = acpi_pcc_init_input(pcc);
- if (result) {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Error installing keyinput handler\n"));
- goto out_sinf;
- }
-
- /* initialize hotkey input device */
- status = acpi_install_notify_handler(pcc->handle, ACPI_DEVICE_NOTIFY,
- acpi_pcc_hotkey_notify, pcc);
-
- if (ACPI_FAILURE(status)) {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Error installing notify handler\n"));
- result = -ENODEV;
- goto out_input;
- }
-
- /* initialize backlight */
- pcc->backlight = backlight_device_register("panasonic", NULL, pcc,
- &pcc_backlight_ops);
- if (IS_ERR(pcc->backlight))
- goto out_notify;
-
- if (!acpi_pcc_retrieve_biosdata(pcc, pcc->sinf)) {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Couldn't retrieve BIOS data\n"));
- goto out_backlight;
- }
-
- /* read the initial brightness setting from the hardware */
- pcc->backlight->props.max_brightness =
- pcc->sinf[SINF_AC_MAX_BRIGHT];
- pcc->backlight->props.brightness = pcc->sinf[SINF_AC_CUR_BRIGHT];
-
- /* read the initial sticky key mode from the hardware */
- pcc->sticky_mode = pcc->sinf[SINF_STICKY_KEY];
-
- /* add sysfs attributes */
- result = sysfs_create_group(&device->dev.kobj, &pcc_attr_group);
- if (result)
- goto out_backlight;
-
- return 0;
-
-out_backlight:
- backlight_device_unregister(pcc->backlight);
-out_notify:
- acpi_remove_notify_handler(pcc->handle, ACPI_DEVICE_NOTIFY,
- acpi_pcc_hotkey_notify);
-out_input:
- input_unregister_device(pcc->input_dev);
- /* no need to input_free_device() since core input API refcount and
- * free()s the device */
-out_sinf:
- kfree(pcc->sinf);
-out_hotkey:
- kfree(pcc);
-
- return result;
-}
-
-static int __init acpi_pcc_init(void)
-{
- int result = 0;
-
- ACPI_FUNCTION_TRACE("acpi_pcc_init");
-
- if (acpi_disabled)
- return -ENODEV;
-
- result = acpi_bus_register_driver(&acpi_pcc_driver);
- if (result < 0) {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Error registering hotkey driver\n"));
- return -ENODEV;
- }
-
- return 0;
-}
-
-static int acpi_pcc_hotkey_remove(struct acpi_device *device, int type)
-{
- struct pcc_acpi *pcc = acpi_driver_data(device);
-
- ACPI_FUNCTION_TRACE("acpi_pcc_hotkey_remove");
-
- if (!device || !pcc)
- return -EINVAL;
-
- sysfs_remove_group(&device->dev.kobj, &pcc_attr_group);
-
- backlight_device_unregister(pcc->backlight);
-
- acpi_remove_notify_handler(pcc->handle, ACPI_DEVICE_NOTIFY,
- acpi_pcc_hotkey_notify);
-
- input_unregister_device(pcc->input_dev);
- /* no need to input_free_device() since core input API refcount and
- * free()s the device */
-
- kfree(pcc->sinf);
- kfree(pcc);
-
- return 0;
-}
-
-static void __exit acpi_pcc_exit(void)
-{
- ACPI_FUNCTION_TRACE("acpi_pcc_exit");
-
- acpi_bus_unregister_driver(&acpi_pcc_driver);
-}
-
-module_init(acpi_pcc_init);
-module_exit(acpi_pcc_exit);