51fac8388a
The second argument of ACPI driver .remove() operation is only used by the ACPI processor driver and the value passed to that driver through it is always available from the given struct acpi_device object's removal_type field. For this reason, the second ACPI driver .remove() argument is in fact useless, so drop it. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Jiang Liu <jiang.liu@huawei.com> Acked-by: Toshi Kani <toshi.kani@hp.com> Acked-by: Yinghai Lu <yinghai@kernel.org>
490 lines
10 KiB
C
490 lines
10 KiB
C
/*
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* Copyright (C) 2006-2012 Robert Gerlach <khnz@gmx.de>
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* Copyright (C) 2005-2006 Jan Rychter <jan@rychter.com>
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*
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* You can redistribute and/or modify this program under the terms of the
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* GNU General Public License version 2 as published by the Free Software
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* Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
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* Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place Suite 330, Boston, MA 02111-1307, USA.
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/bitops.h>
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#include <linux/io.h>
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#include <linux/ioport.h>
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#include <linux/acpi.h>
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#include <linux/device.h>
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#include <linux/interrupt.h>
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#include <linux/input.h>
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#include <linux/delay.h>
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#include <linux/dmi.h>
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#define MODULENAME "fujitsu-tablet"
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#define ACPI_FUJITSU_CLASS "fujitsu"
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#define INVERT_TABLET_MODE_BIT 0x01
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#define INVERT_DOCK_STATE_BIT 0x02
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#define FORCE_TABLET_MODE_IF_UNDOCK 0x04
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#define KEYMAP_LEN 16
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static const struct acpi_device_id fujitsu_ids[] = {
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{ .id = "FUJ02BD" },
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{ .id = "FUJ02BF" },
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{ .id = "" }
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};
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struct fujitsu_config {
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unsigned short keymap[KEYMAP_LEN];
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unsigned int quirks;
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};
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static unsigned short keymap_Lifebook_Tseries[KEYMAP_LEN] __initdata = {
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KEY_RESERVED,
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KEY_RESERVED,
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KEY_RESERVED,
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KEY_RESERVED,
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KEY_SCROLLDOWN,
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KEY_SCROLLUP,
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KEY_DIRECTION,
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KEY_LEFTCTRL,
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KEY_BRIGHTNESSUP,
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KEY_BRIGHTNESSDOWN,
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KEY_BRIGHTNESS_ZERO,
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KEY_RESERVED,
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KEY_RESERVED,
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KEY_RESERVED,
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KEY_RESERVED,
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KEY_LEFTALT
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};
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static unsigned short keymap_Lifebook_U810[KEYMAP_LEN] __initdata = {
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KEY_RESERVED,
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KEY_RESERVED,
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KEY_RESERVED,
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KEY_RESERVED,
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KEY_PROG1,
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KEY_PROG2,
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KEY_DIRECTION,
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KEY_RESERVED,
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KEY_RESERVED,
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KEY_RESERVED,
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KEY_UP,
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KEY_DOWN,
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KEY_RESERVED,
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KEY_RESERVED,
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KEY_LEFTCTRL,
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KEY_LEFTALT
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};
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static unsigned short keymap_Stylistic_Tseries[KEYMAP_LEN] __initdata = {
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KEY_RESERVED,
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KEY_RESERVED,
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KEY_RESERVED,
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KEY_RESERVED,
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KEY_PRINT,
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KEY_BACKSPACE,
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KEY_SPACE,
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KEY_ENTER,
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KEY_BRIGHTNESSUP,
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KEY_BRIGHTNESSDOWN,
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KEY_DOWN,
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KEY_UP,
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KEY_SCROLLUP,
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KEY_SCROLLDOWN,
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KEY_LEFTCTRL,
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KEY_LEFTALT
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};
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static unsigned short keymap_Stylistic_ST5xxx[KEYMAP_LEN] __initdata = {
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KEY_RESERVED,
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KEY_RESERVED,
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KEY_RESERVED,
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KEY_RESERVED,
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KEY_MAIL,
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KEY_DIRECTION,
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KEY_ESC,
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KEY_ENTER,
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KEY_BRIGHTNESSUP,
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KEY_BRIGHTNESSDOWN,
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KEY_DOWN,
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KEY_UP,
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KEY_SCROLLUP,
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KEY_SCROLLDOWN,
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KEY_LEFTCTRL,
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KEY_LEFTALT
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};
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static struct {
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struct input_dev *idev;
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struct fujitsu_config config;
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unsigned long prev_keymask;
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char phys[21];
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int irq;
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int io_base;
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int io_length;
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} fujitsu;
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static u8 fujitsu_ack(void)
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{
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return inb(fujitsu.io_base + 2);
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}
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static u8 fujitsu_status(void)
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{
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return inb(fujitsu.io_base + 6);
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}
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static u8 fujitsu_read_register(const u8 addr)
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{
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outb(addr, fujitsu.io_base);
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return inb(fujitsu.io_base + 4);
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}
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static void fujitsu_send_state(void)
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{
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int state;
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int dock, tablet_mode;
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state = fujitsu_read_register(0xdd);
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dock = state & 0x02;
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if (fujitsu.config.quirks & INVERT_DOCK_STATE_BIT)
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dock = !dock;
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if ((fujitsu.config.quirks & FORCE_TABLET_MODE_IF_UNDOCK) && (!dock)) {
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tablet_mode = 1;
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} else{
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tablet_mode = state & 0x01;
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if (fujitsu.config.quirks & INVERT_TABLET_MODE_BIT)
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tablet_mode = !tablet_mode;
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}
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input_report_switch(fujitsu.idev, SW_DOCK, dock);
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input_report_switch(fujitsu.idev, SW_TABLET_MODE, tablet_mode);
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input_sync(fujitsu.idev);
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}
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static void fujitsu_reset(void)
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{
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int timeout = 50;
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fujitsu_ack();
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while ((fujitsu_status() & 0x02) && (--timeout))
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msleep(20);
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fujitsu_send_state();
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}
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static int input_fujitsu_setup(struct device *parent, const char *name,
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const char *phys)
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{
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struct input_dev *idev;
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int error;
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int i;
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idev = input_allocate_device();
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if (!idev)
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return -ENOMEM;
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idev->dev.parent = parent;
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idev->phys = phys;
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idev->name = name;
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idev->id.bustype = BUS_HOST;
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idev->id.vendor = 0x1734; /* Fujitsu Siemens Computer GmbH */
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idev->id.product = 0x0001;
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idev->id.version = 0x0101;
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idev->keycode = fujitsu.config.keymap;
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idev->keycodesize = sizeof(fujitsu.config.keymap[0]);
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idev->keycodemax = ARRAY_SIZE(fujitsu.config.keymap);
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__set_bit(EV_REP, idev->evbit);
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for (i = 0; i < ARRAY_SIZE(fujitsu.config.keymap); i++)
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if (fujitsu.config.keymap[i])
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input_set_capability(idev, EV_KEY, fujitsu.config.keymap[i]);
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input_set_capability(idev, EV_MSC, MSC_SCAN);
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input_set_capability(idev, EV_SW, SW_DOCK);
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input_set_capability(idev, EV_SW, SW_TABLET_MODE);
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error = input_register_device(idev);
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if (error) {
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input_free_device(idev);
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return error;
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}
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fujitsu.idev = idev;
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return 0;
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}
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static void input_fujitsu_remove(void)
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{
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input_unregister_device(fujitsu.idev);
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}
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static irqreturn_t fujitsu_interrupt(int irq, void *dev_id)
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{
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unsigned long keymask, changed;
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unsigned int keycode;
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int pressed;
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int i;
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if (unlikely(!(fujitsu_status() & 0x01)))
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return IRQ_NONE;
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fujitsu_send_state();
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keymask = fujitsu_read_register(0xde);
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keymask |= fujitsu_read_register(0xdf) << 8;
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keymask ^= 0xffff;
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changed = keymask ^ fujitsu.prev_keymask;
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if (changed) {
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fujitsu.prev_keymask = keymask;
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for_each_set_bit(i, &changed, KEYMAP_LEN) {
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keycode = fujitsu.config.keymap[i];
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pressed = keymask & changed & BIT(i);
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if (pressed)
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input_event(fujitsu.idev, EV_MSC, MSC_SCAN, i);
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input_report_key(fujitsu.idev, keycode, pressed);
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input_sync(fujitsu.idev);
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}
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}
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fujitsu_ack();
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return IRQ_HANDLED;
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}
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static void fujitsu_dmi_common(const struct dmi_system_id *dmi)
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{
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pr_info("%s\n", dmi->ident);
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memcpy(fujitsu.config.keymap, dmi->driver_data,
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sizeof(fujitsu.config.keymap));
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}
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static int fujitsu_dmi_lifebook(const struct dmi_system_id *dmi)
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{
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fujitsu_dmi_common(dmi);
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fujitsu.config.quirks |= INVERT_TABLET_MODE_BIT;
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return 1;
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}
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static int fujitsu_dmi_stylistic(const struct dmi_system_id *dmi)
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{
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fujitsu_dmi_common(dmi);
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fujitsu.config.quirks |= FORCE_TABLET_MODE_IF_UNDOCK;
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fujitsu.config.quirks |= INVERT_DOCK_STATE_BIT;
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return 1;
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}
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static const struct dmi_system_id dmi_ids[] __initconst = {
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{
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.callback = fujitsu_dmi_lifebook,
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.ident = "Fujitsu Siemens P/T Series",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
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DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK")
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},
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.driver_data = keymap_Lifebook_Tseries
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},
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{
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.callback = fujitsu_dmi_lifebook,
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.ident = "Fujitsu Lifebook T Series",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
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DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook T")
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},
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.driver_data = keymap_Lifebook_Tseries
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},
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{
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.callback = fujitsu_dmi_stylistic,
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.ident = "Fujitsu Siemens Stylistic T Series",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
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DMI_MATCH(DMI_PRODUCT_NAME, "Stylistic T")
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},
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.driver_data = keymap_Stylistic_Tseries
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},
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{
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.callback = fujitsu_dmi_lifebook,
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.ident = "Fujitsu LifeBook U810",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
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DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook U810")
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},
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.driver_data = keymap_Lifebook_U810
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},
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{
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.callback = fujitsu_dmi_stylistic,
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.ident = "Fujitsu Siemens Stylistic ST5xxx Series",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
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DMI_MATCH(DMI_PRODUCT_NAME, "STYLISTIC ST5")
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},
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.driver_data = keymap_Stylistic_ST5xxx
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},
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{
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.callback = fujitsu_dmi_stylistic,
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.ident = "Fujitsu Siemens Stylistic ST5xxx Series",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
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DMI_MATCH(DMI_PRODUCT_NAME, "Stylistic ST5")
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},
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.driver_data = keymap_Stylistic_ST5xxx
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},
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{
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.callback = fujitsu_dmi_lifebook,
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.ident = "Unknown (using defaults)",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, ""),
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DMI_MATCH(DMI_PRODUCT_NAME, "")
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},
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.driver_data = keymap_Lifebook_Tseries
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},
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{ NULL }
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};
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static acpi_status fujitsu_walk_resources(struct acpi_resource *res, void *data)
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{
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switch (res->type) {
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case ACPI_RESOURCE_TYPE_IRQ:
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fujitsu.irq = res->data.irq.interrupts[0];
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return AE_OK;
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case ACPI_RESOURCE_TYPE_IO:
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fujitsu.io_base = res->data.io.minimum;
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fujitsu.io_length = res->data.io.address_length;
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return AE_OK;
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case ACPI_RESOURCE_TYPE_END_TAG:
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if (fujitsu.irq && fujitsu.io_base)
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return AE_OK;
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else
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return AE_NOT_FOUND;
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default:
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return AE_ERROR;
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}
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}
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static int acpi_fujitsu_add(struct acpi_device *adev)
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{
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acpi_status status;
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int error;
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if (!adev)
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return -EINVAL;
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status = acpi_walk_resources(adev->handle, METHOD_NAME__CRS,
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fujitsu_walk_resources, NULL);
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if (ACPI_FAILURE(status) || !fujitsu.irq || !fujitsu.io_base)
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return -ENODEV;
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sprintf(acpi_device_name(adev), "Fujitsu %s", acpi_device_hid(adev));
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sprintf(acpi_device_class(adev), "%s", ACPI_FUJITSU_CLASS);
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snprintf(fujitsu.phys, sizeof(fujitsu.phys),
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"%s/input0", acpi_device_hid(adev));
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error = input_fujitsu_setup(&adev->dev,
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acpi_device_name(adev), fujitsu.phys);
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if (error)
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return error;
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if (!request_region(fujitsu.io_base, fujitsu.io_length, MODULENAME)) {
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input_fujitsu_remove();
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return -EBUSY;
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}
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fujitsu_reset();
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error = request_irq(fujitsu.irq, fujitsu_interrupt,
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IRQF_SHARED, MODULENAME, fujitsu_interrupt);
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if (error) {
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release_region(fujitsu.io_base, fujitsu.io_length);
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input_fujitsu_remove();
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return error;
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}
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return 0;
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}
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static int acpi_fujitsu_remove(struct acpi_device *adev)
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{
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free_irq(fujitsu.irq, fujitsu_interrupt);
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release_region(fujitsu.io_base, fujitsu.io_length);
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input_fujitsu_remove();
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return 0;
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}
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#ifdef CONFIG_PM_SLEEP
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static int acpi_fujitsu_resume(struct device *dev)
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{
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fujitsu_reset();
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return 0;
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}
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#endif
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static SIMPLE_DEV_PM_OPS(acpi_fujitsu_pm, NULL, acpi_fujitsu_resume);
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static struct acpi_driver acpi_fujitsu_driver = {
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.name = MODULENAME,
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.class = "hotkey",
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.ids = fujitsu_ids,
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.ops = {
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.add = acpi_fujitsu_add,
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.remove = acpi_fujitsu_remove,
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},
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.drv.pm = &acpi_fujitsu_pm,
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};
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static int __init fujitsu_module_init(void)
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{
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int error;
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dmi_check_system(dmi_ids);
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error = acpi_bus_register_driver(&acpi_fujitsu_driver);
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if (error)
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return error;
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return 0;
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}
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static void __exit fujitsu_module_exit(void)
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{
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acpi_bus_unregister_driver(&acpi_fujitsu_driver);
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}
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module_init(fujitsu_module_init);
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module_exit(fujitsu_module_exit);
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MODULE_AUTHOR("Robert Gerlach <khnz@gmx.de>");
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MODULE_DESCRIPTION("Fujitsu tablet pc extras driver");
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MODULE_LICENSE("GPL");
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MODULE_VERSION("2.5");
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MODULE_DEVICE_TABLE(acpi, fujitsu_ids);
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