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![Len Brown](/assets/img/avatar_default.png)
Conflicts: drivers/acpi/bay.c drivers/acpi/dock.c drivers/ata/libata-acpi.c Signed-off-by: Len Brown <len.brown@intel.com>
866 lines
21 KiB
C
866 lines
21 KiB
C
/*
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* eepc-laptop.c - Asus Eee PC extras
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*
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* Based on asus_acpi.c as patched for the Eee PC by Asus:
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* ftp://ftp.asus.com/pub/ASUS/EeePC/701/ASUS_ACPI_071126.rar
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* Based on eee.c from eeepc-linux
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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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/types.h>
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#include <linux/platform_device.h>
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#include <linux/backlight.h>
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#include <linux/fb.h>
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#include <linux/hwmon.h>
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#include <linux/hwmon-sysfs.h>
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#include <acpi/acpi_drivers.h>
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#include <acpi/acpi_bus.h>
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#include <linux/uaccess.h>
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#include <linux/input.h>
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#include <linux/rfkill.h>
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#define EEEPC_LAPTOP_VERSION "0.1"
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#define EEEPC_HOTK_NAME "Eee PC Hotkey Driver"
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#define EEEPC_HOTK_FILE "eeepc"
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#define EEEPC_HOTK_CLASS "hotkey"
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#define EEEPC_HOTK_DEVICE_NAME "Hotkey"
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#define EEEPC_HOTK_HID "ASUS010"
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#define EEEPC_LOG EEEPC_HOTK_FILE ": "
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#define EEEPC_ERR KERN_ERR EEEPC_LOG
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#define EEEPC_WARNING KERN_WARNING EEEPC_LOG
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#define EEEPC_NOTICE KERN_NOTICE EEEPC_LOG
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#define EEEPC_INFO KERN_INFO EEEPC_LOG
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/*
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* Definitions for Asus EeePC
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*/
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#define NOTIFY_WLAN_ON 0x10
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#define NOTIFY_BRN_MIN 0x20
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#define NOTIFY_BRN_MAX 0x2f
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enum {
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DISABLE_ASL_WLAN = 0x0001,
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DISABLE_ASL_BLUETOOTH = 0x0002,
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DISABLE_ASL_IRDA = 0x0004,
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DISABLE_ASL_CAMERA = 0x0008,
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DISABLE_ASL_TV = 0x0010,
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DISABLE_ASL_GPS = 0x0020,
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DISABLE_ASL_DISPLAYSWITCH = 0x0040,
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DISABLE_ASL_MODEM = 0x0080,
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DISABLE_ASL_CARDREADER = 0x0100
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};
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enum {
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CM_ASL_WLAN = 0,
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CM_ASL_BLUETOOTH,
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CM_ASL_IRDA,
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CM_ASL_1394,
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CM_ASL_CAMERA,
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CM_ASL_TV,
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CM_ASL_GPS,
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CM_ASL_DVDROM,
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CM_ASL_DISPLAYSWITCH,
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CM_ASL_PANELBRIGHT,
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CM_ASL_BIOSFLASH,
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CM_ASL_ACPIFLASH,
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CM_ASL_CPUFV,
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CM_ASL_CPUTEMPERATURE,
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CM_ASL_FANCPU,
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CM_ASL_FANCHASSIS,
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CM_ASL_USBPORT1,
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CM_ASL_USBPORT2,
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CM_ASL_USBPORT3,
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CM_ASL_MODEM,
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CM_ASL_CARDREADER,
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CM_ASL_LID
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};
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static const char *cm_getv[] = {
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"WLDG", NULL, NULL, NULL,
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"CAMG", NULL, NULL, NULL,
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NULL, "PBLG", NULL, NULL,
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"CFVG", NULL, NULL, NULL,
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"USBG", NULL, NULL, "MODG",
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"CRDG", "LIDG"
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};
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static const char *cm_setv[] = {
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"WLDS", NULL, NULL, NULL,
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"CAMS", NULL, NULL, NULL,
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"SDSP", "PBLS", "HDPS", NULL,
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"CFVS", NULL, NULL, NULL,
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"USBG", NULL, NULL, "MODS",
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"CRDS", NULL
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};
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#define EEEPC_EC "\\_SB.PCI0.SBRG.EC0."
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#define EEEPC_EC_FAN_PWM EEEPC_EC "SC02" /* Fan PWM duty cycle (%) */
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#define EEEPC_EC_SC02 0x63
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#define EEEPC_EC_FAN_HRPM EEEPC_EC "SC05" /* High byte, fan speed (RPM) */
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#define EEEPC_EC_FAN_LRPM EEEPC_EC "SC06" /* Low byte, fan speed (RPM) */
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#define EEEPC_EC_FAN_CTRL EEEPC_EC "SFB3" /* Byte containing SF25 */
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#define EEEPC_EC_SFB3 0xD3
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/*
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* This is the main structure, we can use it to store useful information
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* about the hotk device
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*/
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struct eeepc_hotk {
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struct acpi_device *device; /* the device we are in */
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acpi_handle handle; /* the handle of the hotk device */
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u32 cm_supported; /* the control methods supported
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by this BIOS */
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uint init_flag; /* Init flags */
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u16 event_count[128]; /* count for each event */
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struct input_dev *inputdev;
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u16 *keycode_map;
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struct rfkill *eeepc_wlan_rfkill;
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struct rfkill *eeepc_bluetooth_rfkill;
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};
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/* The actual device the driver binds to */
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static struct eeepc_hotk *ehotk;
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/* Platform device/driver */
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static struct platform_driver platform_driver = {
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.driver = {
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.name = EEEPC_HOTK_FILE,
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.owner = THIS_MODULE,
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}
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};
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static struct platform_device *platform_device;
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struct key_entry {
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char type;
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u8 code;
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u16 keycode;
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};
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enum { KE_KEY, KE_END };
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static struct key_entry eeepc_keymap[] = {
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/* Sleep already handled via generic ACPI code */
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{KE_KEY, 0x10, KEY_WLAN },
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{KE_KEY, 0x12, KEY_PROG1 },
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{KE_KEY, 0x13, KEY_MUTE },
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{KE_KEY, 0x14, KEY_VOLUMEDOWN },
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{KE_KEY, 0x15, KEY_VOLUMEUP },
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{KE_KEY, 0x30, KEY_SWITCHVIDEOMODE },
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{KE_KEY, 0x31, KEY_SWITCHVIDEOMODE },
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{KE_KEY, 0x32, KEY_SWITCHVIDEOMODE },
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{KE_END, 0},
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};
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/*
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* The hotkey driver declaration
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*/
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static int eeepc_hotk_add(struct acpi_device *device);
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static int eeepc_hotk_remove(struct acpi_device *device, int type);
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static const struct acpi_device_id eeepc_device_ids[] = {
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{EEEPC_HOTK_HID, 0},
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{"", 0},
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};
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MODULE_DEVICE_TABLE(acpi, eeepc_device_ids);
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static struct acpi_driver eeepc_hotk_driver = {
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.name = EEEPC_HOTK_NAME,
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.class = EEEPC_HOTK_CLASS,
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.ids = eeepc_device_ids,
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.ops = {
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.add = eeepc_hotk_add,
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.remove = eeepc_hotk_remove,
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},
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};
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/* The backlight device /sys/class/backlight */
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static struct backlight_device *eeepc_backlight_device;
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/* The hwmon device */
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static struct device *eeepc_hwmon_device;
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/*
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* The backlight class declaration
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*/
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static int read_brightness(struct backlight_device *bd);
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static int update_bl_status(struct backlight_device *bd);
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static struct backlight_ops eeepcbl_ops = {
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.get_brightness = read_brightness,
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.update_status = update_bl_status,
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};
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MODULE_AUTHOR("Corentin Chary, Eric Cooper");
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MODULE_DESCRIPTION(EEEPC_HOTK_NAME);
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MODULE_LICENSE("GPL");
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/*
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* ACPI Helpers
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*/
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static int write_acpi_int(acpi_handle handle, const char *method, int val,
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struct acpi_buffer *output)
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{
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struct acpi_object_list params;
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union acpi_object in_obj;
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acpi_status status;
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params.count = 1;
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params.pointer = &in_obj;
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in_obj.type = ACPI_TYPE_INTEGER;
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in_obj.integer.value = val;
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status = acpi_evaluate_object(handle, (char *)method, ¶ms, output);
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return (status == AE_OK ? 0 : -1);
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}
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static int read_acpi_int(acpi_handle handle, const char *method, int *val)
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{
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acpi_status status;
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unsigned long long result;
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status = acpi_evaluate_integer(handle, (char *)method, NULL, &result);
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if (ACPI_FAILURE(status)) {
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*val = -1;
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return -1;
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} else {
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*val = result;
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return 0;
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}
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}
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static int set_acpi(int cm, int value)
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{
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if (ehotk->cm_supported & (0x1 << cm)) {
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const char *method = cm_setv[cm];
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if (method == NULL)
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return -ENODEV;
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if (write_acpi_int(ehotk->handle, method, value, NULL))
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printk(EEEPC_WARNING "Error writing %s\n", method);
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}
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return 0;
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}
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static int get_acpi(int cm)
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{
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int value = -1;
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if ((ehotk->cm_supported & (0x1 << cm))) {
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const char *method = cm_getv[cm];
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if (method == NULL)
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return -ENODEV;
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if (read_acpi_int(ehotk->handle, method, &value))
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printk(EEEPC_WARNING "Error reading %s\n", method);
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}
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return value;
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}
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/*
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* Backlight
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*/
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static int read_brightness(struct backlight_device *bd)
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{
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return get_acpi(CM_ASL_PANELBRIGHT);
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}
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static int set_brightness(struct backlight_device *bd, int value)
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{
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value = max(0, min(15, value));
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return set_acpi(CM_ASL_PANELBRIGHT, value);
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}
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static int update_bl_status(struct backlight_device *bd)
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{
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return set_brightness(bd, bd->props.brightness);
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}
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/*
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* Rfkill helpers
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*/
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static int eeepc_wlan_rfkill_set(void *data, enum rfkill_state state)
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{
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if (state == RFKILL_STATE_SOFT_BLOCKED)
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return set_acpi(CM_ASL_WLAN, 0);
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else
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return set_acpi(CM_ASL_WLAN, 1);
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}
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static int eeepc_wlan_rfkill_state(void *data, enum rfkill_state *state)
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{
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if (get_acpi(CM_ASL_WLAN) == 1)
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*state = RFKILL_STATE_UNBLOCKED;
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else
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*state = RFKILL_STATE_SOFT_BLOCKED;
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return 0;
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}
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static int eeepc_bluetooth_rfkill_set(void *data, enum rfkill_state state)
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{
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if (state == RFKILL_STATE_SOFT_BLOCKED)
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return set_acpi(CM_ASL_BLUETOOTH, 0);
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else
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return set_acpi(CM_ASL_BLUETOOTH, 1);
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}
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static int eeepc_bluetooth_rfkill_state(void *data, enum rfkill_state *state)
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{
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if (get_acpi(CM_ASL_BLUETOOTH) == 1)
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*state = RFKILL_STATE_UNBLOCKED;
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else
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*state = RFKILL_STATE_SOFT_BLOCKED;
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return 0;
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}
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/*
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* Sys helpers
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*/
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static int parse_arg(const char *buf, unsigned long count, int *val)
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{
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if (!count)
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return 0;
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if (sscanf(buf, "%i", val) != 1)
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return -EINVAL;
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return count;
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}
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static ssize_t store_sys_acpi(int cm, const char *buf, size_t count)
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{
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int rv, value;
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rv = parse_arg(buf, count, &value);
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if (rv > 0)
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set_acpi(cm, value);
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return rv;
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}
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static ssize_t show_sys_acpi(int cm, char *buf)
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{
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return sprintf(buf, "%d\n", get_acpi(cm));
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}
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#define EEEPC_CREATE_DEVICE_ATTR(_name, _cm) \
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static ssize_t show_##_name(struct device *dev, \
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struct device_attribute *attr, \
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char *buf) \
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{ \
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return show_sys_acpi(_cm, buf); \
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} \
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static ssize_t store_##_name(struct device *dev, \
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struct device_attribute *attr, \
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const char *buf, size_t count) \
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{ \
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return store_sys_acpi(_cm, buf, count); \
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} \
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static struct device_attribute dev_attr_##_name = { \
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.attr = { \
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.name = __stringify(_name), \
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.mode = 0644 }, \
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.show = show_##_name, \
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.store = store_##_name, \
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}
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EEEPC_CREATE_DEVICE_ATTR(camera, CM_ASL_CAMERA);
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EEEPC_CREATE_DEVICE_ATTR(cardr, CM_ASL_CARDREADER);
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EEEPC_CREATE_DEVICE_ATTR(disp, CM_ASL_DISPLAYSWITCH);
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static struct attribute *platform_attributes[] = {
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&dev_attr_camera.attr,
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&dev_attr_cardr.attr,
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&dev_attr_disp.attr,
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NULL
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};
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static struct attribute_group platform_attribute_group = {
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.attrs = platform_attributes
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};
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/*
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* Hotkey functions
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*/
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static struct key_entry *eepc_get_entry_by_scancode(int code)
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{
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struct key_entry *key;
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for (key = eeepc_keymap; key->type != KE_END; key++)
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if (code == key->code)
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return key;
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return NULL;
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}
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static struct key_entry *eepc_get_entry_by_keycode(int code)
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{
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struct key_entry *key;
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for (key = eeepc_keymap; key->type != KE_END; key++)
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if (code == key->keycode && key->type == KE_KEY)
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return key;
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return NULL;
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}
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static int eeepc_getkeycode(struct input_dev *dev, int scancode, int *keycode)
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{
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struct key_entry *key = eepc_get_entry_by_scancode(scancode);
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if (key && key->type == KE_KEY) {
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*keycode = key->keycode;
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return 0;
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}
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return -EINVAL;
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}
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static int eeepc_setkeycode(struct input_dev *dev, int scancode, int keycode)
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{
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struct key_entry *key;
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int old_keycode;
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if (keycode < 0 || keycode > KEY_MAX)
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return -EINVAL;
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key = eepc_get_entry_by_scancode(scancode);
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if (key && key->type == KE_KEY) {
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old_keycode = key->keycode;
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key->keycode = keycode;
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set_bit(keycode, dev->keybit);
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if (!eepc_get_entry_by_keycode(old_keycode))
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clear_bit(old_keycode, dev->keybit);
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return 0;
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}
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return -EINVAL;
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}
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static int eeepc_hotk_check(void)
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{
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const struct key_entry *key;
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struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
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int result;
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result = acpi_bus_get_status(ehotk->device);
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if (result)
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return result;
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if (ehotk->device->status.present) {
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if (write_acpi_int(ehotk->handle, "INIT", ehotk->init_flag,
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&buffer)) {
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printk(EEEPC_ERR "Hotkey initialization failed\n");
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return -ENODEV;
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} else {
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printk(EEEPC_NOTICE "Hotkey init flags 0x%x\n",
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ehotk->init_flag);
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}
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/* get control methods supported */
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if (read_acpi_int(ehotk->handle, "CMSG"
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, &ehotk->cm_supported)) {
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printk(EEEPC_ERR
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"Get control methods supported failed\n");
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return -ENODEV;
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} else {
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printk(EEEPC_INFO
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"Get control methods supported: 0x%x\n",
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ehotk->cm_supported);
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}
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ehotk->inputdev = input_allocate_device();
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if (!ehotk->inputdev) {
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printk(EEEPC_INFO "Unable to allocate input device\n");
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return 0;
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}
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ehotk->inputdev->name = "Asus EeePC extra buttons";
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ehotk->inputdev->phys = EEEPC_HOTK_FILE "/input0";
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ehotk->inputdev->id.bustype = BUS_HOST;
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ehotk->inputdev->getkeycode = eeepc_getkeycode;
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ehotk->inputdev->setkeycode = eeepc_setkeycode;
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for (key = eeepc_keymap; key->type != KE_END; key++) {
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switch (key->type) {
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case KE_KEY:
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set_bit(EV_KEY, ehotk->inputdev->evbit);
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set_bit(key->keycode, ehotk->inputdev->keybit);
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break;
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}
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}
|
|
result = input_register_device(ehotk->inputdev);
|
|
if (result) {
|
|
printk(EEEPC_INFO "Unable to register input device\n");
|
|
input_free_device(ehotk->inputdev);
|
|
return 0;
|
|
}
|
|
} else {
|
|
printk(EEEPC_ERR "Hotkey device not present, aborting\n");
|
|
return -EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void notify_brn(void)
|
|
{
|
|
struct backlight_device *bd = eeepc_backlight_device;
|
|
bd->props.brightness = read_brightness(bd);
|
|
}
|
|
|
|
static void eeepc_hotk_notify(acpi_handle handle, u32 event, void *data)
|
|
{
|
|
static struct key_entry *key;
|
|
if (!ehotk)
|
|
return;
|
|
if (event >= NOTIFY_BRN_MIN && event <= NOTIFY_BRN_MAX)
|
|
notify_brn();
|
|
acpi_bus_generate_proc_event(ehotk->device, event,
|
|
ehotk->event_count[event % 128]++);
|
|
if (ehotk->inputdev) {
|
|
key = eepc_get_entry_by_scancode(event);
|
|
if (key) {
|
|
switch (key->type) {
|
|
case KE_KEY:
|
|
input_report_key(ehotk->inputdev, key->keycode,
|
|
1);
|
|
input_sync(ehotk->inputdev);
|
|
input_report_key(ehotk->inputdev, key->keycode,
|
|
0);
|
|
input_sync(ehotk->inputdev);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static int eeepc_hotk_add(struct acpi_device *device)
|
|
{
|
|
acpi_status status = AE_OK;
|
|
int result;
|
|
|
|
if (!device)
|
|
return -EINVAL;
|
|
printk(EEEPC_NOTICE EEEPC_HOTK_NAME "\n");
|
|
ehotk = kzalloc(sizeof(struct eeepc_hotk), GFP_KERNEL);
|
|
if (!ehotk)
|
|
return -ENOMEM;
|
|
ehotk->init_flag = DISABLE_ASL_WLAN | DISABLE_ASL_DISPLAYSWITCH;
|
|
ehotk->handle = device->handle;
|
|
strcpy(acpi_device_name(device), EEEPC_HOTK_DEVICE_NAME);
|
|
strcpy(acpi_device_class(device), EEEPC_HOTK_CLASS);
|
|
device->driver_data = ehotk;
|
|
ehotk->device = device;
|
|
result = eeepc_hotk_check();
|
|
if (result)
|
|
goto end;
|
|
status = acpi_install_notify_handler(ehotk->handle, ACPI_SYSTEM_NOTIFY,
|
|
eeepc_hotk_notify, ehotk);
|
|
if (ACPI_FAILURE(status))
|
|
printk(EEEPC_ERR "Error installing notify handler\n");
|
|
|
|
if (get_acpi(CM_ASL_WLAN) != -1) {
|
|
ehotk->eeepc_wlan_rfkill = rfkill_allocate(&device->dev,
|
|
RFKILL_TYPE_WLAN);
|
|
|
|
if (!ehotk->eeepc_wlan_rfkill)
|
|
goto end;
|
|
|
|
ehotk->eeepc_wlan_rfkill->name = "eeepc-wlan";
|
|
ehotk->eeepc_wlan_rfkill->toggle_radio = eeepc_wlan_rfkill_set;
|
|
ehotk->eeepc_wlan_rfkill->get_state = eeepc_wlan_rfkill_state;
|
|
if (get_acpi(CM_ASL_WLAN) == 1)
|
|
ehotk->eeepc_wlan_rfkill->state =
|
|
RFKILL_STATE_UNBLOCKED;
|
|
else
|
|
ehotk->eeepc_wlan_rfkill->state =
|
|
RFKILL_STATE_SOFT_BLOCKED;
|
|
rfkill_register(ehotk->eeepc_wlan_rfkill);
|
|
}
|
|
|
|
if (get_acpi(CM_ASL_BLUETOOTH) != -1) {
|
|
ehotk->eeepc_bluetooth_rfkill =
|
|
rfkill_allocate(&device->dev, RFKILL_TYPE_BLUETOOTH);
|
|
|
|
if (!ehotk->eeepc_bluetooth_rfkill)
|
|
goto end;
|
|
|
|
ehotk->eeepc_bluetooth_rfkill->name = "eeepc-bluetooth";
|
|
ehotk->eeepc_bluetooth_rfkill->toggle_radio =
|
|
eeepc_bluetooth_rfkill_set;
|
|
ehotk->eeepc_bluetooth_rfkill->get_state =
|
|
eeepc_bluetooth_rfkill_state;
|
|
if (get_acpi(CM_ASL_BLUETOOTH) == 1)
|
|
ehotk->eeepc_bluetooth_rfkill->state =
|
|
RFKILL_STATE_UNBLOCKED;
|
|
else
|
|
ehotk->eeepc_bluetooth_rfkill->state =
|
|
RFKILL_STATE_SOFT_BLOCKED;
|
|
rfkill_register(ehotk->eeepc_bluetooth_rfkill);
|
|
}
|
|
|
|
end:
|
|
if (result) {
|
|
kfree(ehotk);
|
|
ehotk = NULL;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
static int eeepc_hotk_remove(struct acpi_device *device, int type)
|
|
{
|
|
acpi_status status = 0;
|
|
|
|
if (!device || !acpi_driver_data(device))
|
|
return -EINVAL;
|
|
status = acpi_remove_notify_handler(ehotk->handle, ACPI_SYSTEM_NOTIFY,
|
|
eeepc_hotk_notify);
|
|
if (ACPI_FAILURE(status))
|
|
printk(EEEPC_ERR "Error removing notify handler\n");
|
|
kfree(ehotk);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Hwmon
|
|
*/
|
|
static int eeepc_get_fan_pwm(void)
|
|
{
|
|
int value = 0;
|
|
|
|
read_acpi_int(NULL, EEEPC_EC_FAN_PWM, &value);
|
|
value = value * 255 / 100;
|
|
return (value);
|
|
}
|
|
|
|
static void eeepc_set_fan_pwm(int value)
|
|
{
|
|
value = SENSORS_LIMIT(value, 0, 255);
|
|
value = value * 100 / 255;
|
|
ec_write(EEEPC_EC_SC02, value);
|
|
}
|
|
|
|
static int eeepc_get_fan_rpm(void)
|
|
{
|
|
int high = 0;
|
|
int low = 0;
|
|
|
|
read_acpi_int(NULL, EEEPC_EC_FAN_HRPM, &high);
|
|
read_acpi_int(NULL, EEEPC_EC_FAN_LRPM, &low);
|
|
return (high << 8 | low);
|
|
}
|
|
|
|
static int eeepc_get_fan_ctrl(void)
|
|
{
|
|
int value = 0;
|
|
|
|
read_acpi_int(NULL, EEEPC_EC_FAN_CTRL, &value);
|
|
return ((value & 0x02 ? 1 : 0));
|
|
}
|
|
|
|
static void eeepc_set_fan_ctrl(int manual)
|
|
{
|
|
int value = 0;
|
|
|
|
read_acpi_int(NULL, EEEPC_EC_FAN_CTRL, &value);
|
|
if (manual)
|
|
value |= 0x02;
|
|
else
|
|
value &= ~0x02;
|
|
ec_write(EEEPC_EC_SFB3, value);
|
|
}
|
|
|
|
static ssize_t store_sys_hwmon(void (*set)(int), const char *buf, size_t count)
|
|
{
|
|
int rv, value;
|
|
|
|
rv = parse_arg(buf, count, &value);
|
|
if (rv > 0)
|
|
set(value);
|
|
return rv;
|
|
}
|
|
|
|
static ssize_t show_sys_hwmon(int (*get)(void), char *buf)
|
|
{
|
|
return sprintf(buf, "%d\n", get());
|
|
}
|
|
|
|
#define EEEPC_CREATE_SENSOR_ATTR(_name, _mode, _set, _get) \
|
|
static ssize_t show_##_name(struct device *dev, \
|
|
struct device_attribute *attr, \
|
|
char *buf) \
|
|
{ \
|
|
return show_sys_hwmon(_set, buf); \
|
|
} \
|
|
static ssize_t store_##_name(struct device *dev, \
|
|
struct device_attribute *attr, \
|
|
const char *buf, size_t count) \
|
|
{ \
|
|
return store_sys_hwmon(_get, buf, count); \
|
|
} \
|
|
static SENSOR_DEVICE_ATTR(_name, _mode, show_##_name, store_##_name, 0);
|
|
|
|
EEEPC_CREATE_SENSOR_ATTR(fan1_input, S_IRUGO, eeepc_get_fan_rpm, NULL);
|
|
EEEPC_CREATE_SENSOR_ATTR(pwm1, S_IRUGO | S_IWUSR,
|
|
eeepc_get_fan_pwm, eeepc_set_fan_pwm);
|
|
EEEPC_CREATE_SENSOR_ATTR(pwm1_enable, S_IRUGO | S_IWUSR,
|
|
eeepc_get_fan_ctrl, eeepc_set_fan_ctrl);
|
|
|
|
static ssize_t
|
|
show_name(struct device *dev, struct device_attribute *attr, char *buf)
|
|
{
|
|
return sprintf(buf, "eeepc\n");
|
|
}
|
|
static SENSOR_DEVICE_ATTR(name, S_IRUGO, show_name, NULL, 0);
|
|
|
|
static struct attribute *hwmon_attributes[] = {
|
|
&sensor_dev_attr_pwm1.dev_attr.attr,
|
|
&sensor_dev_attr_fan1_input.dev_attr.attr,
|
|
&sensor_dev_attr_pwm1_enable.dev_attr.attr,
|
|
&sensor_dev_attr_name.dev_attr.attr,
|
|
NULL
|
|
};
|
|
|
|
static struct attribute_group hwmon_attribute_group = {
|
|
.attrs = hwmon_attributes
|
|
};
|
|
|
|
/*
|
|
* exit/init
|
|
*/
|
|
static void eeepc_backlight_exit(void)
|
|
{
|
|
if (eeepc_backlight_device)
|
|
backlight_device_unregister(eeepc_backlight_device);
|
|
if (ehotk->inputdev)
|
|
input_unregister_device(ehotk->inputdev);
|
|
if (ehotk->eeepc_wlan_rfkill)
|
|
rfkill_unregister(ehotk->eeepc_wlan_rfkill);
|
|
if (ehotk->eeepc_bluetooth_rfkill)
|
|
rfkill_unregister(ehotk->eeepc_bluetooth_rfkill);
|
|
eeepc_backlight_device = NULL;
|
|
}
|
|
|
|
static void eeepc_hwmon_exit(void)
|
|
{
|
|
struct device *hwmon;
|
|
|
|
hwmon = eeepc_hwmon_device;
|
|
if (!hwmon)
|
|
return ;
|
|
sysfs_remove_group(&hwmon->kobj,
|
|
&hwmon_attribute_group);
|
|
hwmon_device_unregister(hwmon);
|
|
eeepc_hwmon_device = NULL;
|
|
}
|
|
|
|
static void __exit eeepc_laptop_exit(void)
|
|
{
|
|
eeepc_backlight_exit();
|
|
eeepc_hwmon_exit();
|
|
acpi_bus_unregister_driver(&eeepc_hotk_driver);
|
|
sysfs_remove_group(&platform_device->dev.kobj,
|
|
&platform_attribute_group);
|
|
platform_device_unregister(platform_device);
|
|
platform_driver_unregister(&platform_driver);
|
|
}
|
|
|
|
static int eeepc_backlight_init(struct device *dev)
|
|
{
|
|
struct backlight_device *bd;
|
|
|
|
bd = backlight_device_register(EEEPC_HOTK_FILE, dev,
|
|
NULL, &eeepcbl_ops);
|
|
if (IS_ERR(bd)) {
|
|
printk(EEEPC_ERR
|
|
"Could not register eeepc backlight device\n");
|
|
eeepc_backlight_device = NULL;
|
|
return PTR_ERR(bd);
|
|
}
|
|
eeepc_backlight_device = bd;
|
|
bd->props.max_brightness = 15;
|
|
bd->props.brightness = read_brightness(NULL);
|
|
bd->props.power = FB_BLANK_UNBLANK;
|
|
backlight_update_status(bd);
|
|
return 0;
|
|
}
|
|
|
|
static int eeepc_hwmon_init(struct device *dev)
|
|
{
|
|
struct device *hwmon;
|
|
int result;
|
|
|
|
hwmon = hwmon_device_register(dev);
|
|
if (IS_ERR(hwmon)) {
|
|
printk(EEEPC_ERR
|
|
"Could not register eeepc hwmon device\n");
|
|
eeepc_hwmon_device = NULL;
|
|
return PTR_ERR(hwmon);
|
|
}
|
|
eeepc_hwmon_device = hwmon;
|
|
result = sysfs_create_group(&hwmon->kobj,
|
|
&hwmon_attribute_group);
|
|
if (result)
|
|
eeepc_hwmon_exit();
|
|
return result;
|
|
}
|
|
|
|
static int __init eeepc_laptop_init(void)
|
|
{
|
|
struct device *dev;
|
|
int result;
|
|
|
|
if (acpi_disabled)
|
|
return -ENODEV;
|
|
result = acpi_bus_register_driver(&eeepc_hotk_driver);
|
|
if (result < 0)
|
|
return result;
|
|
if (!ehotk) {
|
|
acpi_bus_unregister_driver(&eeepc_hotk_driver);
|
|
return -ENODEV;
|
|
}
|
|
dev = acpi_get_physical_device(ehotk->device->handle);
|
|
result = eeepc_backlight_init(dev);
|
|
if (result)
|
|
goto fail_backlight;
|
|
result = eeepc_hwmon_init(dev);
|
|
if (result)
|
|
goto fail_hwmon;
|
|
/* Register platform stuff */
|
|
result = platform_driver_register(&platform_driver);
|
|
if (result)
|
|
goto fail_platform_driver;
|
|
platform_device = platform_device_alloc(EEEPC_HOTK_FILE, -1);
|
|
if (!platform_device) {
|
|
result = -ENOMEM;
|
|
goto fail_platform_device1;
|
|
}
|
|
result = platform_device_add(platform_device);
|
|
if (result)
|
|
goto fail_platform_device2;
|
|
result = sysfs_create_group(&platform_device->dev.kobj,
|
|
&platform_attribute_group);
|
|
if (result)
|
|
goto fail_sysfs;
|
|
return 0;
|
|
fail_sysfs:
|
|
platform_device_del(platform_device);
|
|
fail_platform_device2:
|
|
platform_device_put(platform_device);
|
|
fail_platform_device1:
|
|
platform_driver_unregister(&platform_driver);
|
|
fail_platform_driver:
|
|
eeepc_hwmon_exit();
|
|
fail_hwmon:
|
|
eeepc_backlight_exit();
|
|
fail_backlight:
|
|
return result;
|
|
}
|
|
|
|
module_init(eeepc_laptop_init);
|
|
module_exit(eeepc_laptop_exit);
|