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1511 lines
35 KiB
1511 lines
35 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* eeepc-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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|
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
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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 <linux/slab.h> |
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#include <linux/acpi.h> |
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#include <linux/uaccess.h> |
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#include <linux/input.h> |
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#include <linux/input/sparse-keymap.h> |
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#include <linux/rfkill.h> |
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#include <linux/pci.h> |
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#include <linux/pci_hotplug.h> |
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#include <linux/leds.h> |
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#include <linux/dmi.h> |
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#include <acpi/video.h> |
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|
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#define EEEPC_LAPTOP_VERSION "0.1" |
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#define EEEPC_LAPTOP_NAME "Eee PC Hotkey Driver" |
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#define EEEPC_LAPTOP_FILE "eeepc" |
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|
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#define EEEPC_ACPI_CLASS "hotkey" |
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#define EEEPC_ACPI_DEVICE_NAME "Hotkey" |
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#define EEEPC_ACPI_HID "ASUS010" |
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|
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MODULE_AUTHOR("Corentin Chary, Eric Cooper"); |
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MODULE_DESCRIPTION(EEEPC_LAPTOP_NAME); |
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MODULE_LICENSE("GPL"); |
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|
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static bool hotplug_disabled; |
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|
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module_param(hotplug_disabled, bool, 0444); |
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MODULE_PARM_DESC(hotplug_disabled, |
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"Disable hotplug for wireless device. " |
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"If your laptop need that, please report to " |
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"[email protected]."); |
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|
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/* |
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* Definitions for Asus EeePC |
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*/ |
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#define NOTIFY_BRN_MIN 0x20 |
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#define NOTIFY_BRN_MAX 0x2f |
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|
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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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DISABLE_ASL_3G = 0x0200, |
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DISABLE_ASL_WIMAX = 0x0400, |
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DISABLE_ASL_HWCF = 0x0800 |
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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_3G, |
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CM_ASL_WIMAX, |
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CM_ASL_HWCF, |
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CM_ASL_LID, |
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CM_ASL_TYPE, |
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CM_ASL_PANELPOWER, /*P901*/ |
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CM_ASL_TPD |
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}; |
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|
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static const char *cm_getv[] = { |
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"WLDG", "BTHG", 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", "M3GG", "WIMG", "HWCF", |
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"LIDG", "TYPE", "PBPG", "TPDG" |
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}; |
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|
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static const char *cm_setv[] = { |
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"WLDS", "BTHS", 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", "M3GS", "WIMS", NULL, |
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NULL, NULL, "PBPS", "TPDS" |
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}; |
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|
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static const struct key_entry eeepc_keymap[] = { |
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{ KE_KEY, 0x10, { KEY_WLAN } }, |
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{ KE_KEY, 0x11, { 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, 0x16, { KEY_DISPLAY_OFF } }, |
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{ KE_KEY, 0x1a, { KEY_COFFEE } }, |
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{ KE_KEY, 0x1b, { KEY_ZOOM } }, |
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{ KE_KEY, 0x1c, { KEY_PROG2 } }, |
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{ KE_KEY, 0x1d, { KEY_PROG3 } }, |
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{ KE_KEY, NOTIFY_BRN_MIN, { KEY_BRIGHTNESSDOWN } }, |
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{ KE_KEY, NOTIFY_BRN_MAX, { KEY_BRIGHTNESSUP } }, |
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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_KEY, 0x37, { KEY_F13 } }, /* Disable Touchpad */ |
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{ KE_KEY, 0x38, { KEY_F14 } }, |
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{ KE_IGNORE, 0x50, { KEY_RESERVED } }, /* AC plugged */ |
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{ KE_IGNORE, 0x51, { KEY_RESERVED } }, /* AC unplugged */ |
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{ KE_END, 0 }, |
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}; |
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|
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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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*/ |
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struct eeepc_laptop { |
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acpi_handle handle; /* the handle of the acpi device */ |
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u32 cm_supported; /* the control methods supported |
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by this BIOS */ |
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bool cpufv_disabled; |
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bool hotplug_disabled; |
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u16 event_count[128]; /* count for each event */ |
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|
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struct platform_device *platform_device; |
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struct acpi_device *device; /* the device we are in */ |
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struct backlight_device *backlight_device; |
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|
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struct input_dev *inputdev; |
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|
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struct rfkill *wlan_rfkill; |
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struct rfkill *bluetooth_rfkill; |
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struct rfkill *wwan3g_rfkill; |
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struct rfkill *wimax_rfkill; |
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|
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struct hotplug_slot hotplug_slot; |
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struct mutex hotplug_lock; |
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|
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struct led_classdev tpd_led; |
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int tpd_led_wk; |
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struct workqueue_struct *led_workqueue; |
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struct work_struct tpd_led_work; |
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}; |
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|
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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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{ |
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acpi_status status; |
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|
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status = acpi_execute_simple_method(handle, (char *)method, val); |
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|
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return (status == AE_OK ? 0 : -1); |
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} |
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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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|
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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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|
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static int set_acpi(struct eeepc_laptop *eeepc, int cm, int value) |
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{ |
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const char *method = cm_setv[cm]; |
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|
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if (method == NULL) |
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return -ENODEV; |
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if ((eeepc->cm_supported & (0x1 << cm)) == 0) |
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return -ENODEV; |
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|
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if (write_acpi_int(eeepc->handle, method, value)) |
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pr_warn("Error writing %s\n", method); |
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return 0; |
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} |
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|
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static int get_acpi(struct eeepc_laptop *eeepc, int cm) |
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{ |
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const char *method = cm_getv[cm]; |
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int value; |
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|
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if (method == NULL) |
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return -ENODEV; |
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if ((eeepc->cm_supported & (0x1 << cm)) == 0) |
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return -ENODEV; |
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|
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if (read_acpi_int(eeepc->handle, method, &value)) |
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pr_warn("Error reading %s\n", method); |
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return value; |
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} |
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|
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static int acpi_setter_handle(struct eeepc_laptop *eeepc, int cm, |
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acpi_handle *handle) |
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{ |
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const char *method = cm_setv[cm]; |
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acpi_status status; |
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|
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if (method == NULL) |
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return -ENODEV; |
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if ((eeepc->cm_supported & (0x1 << cm)) == 0) |
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return -ENODEV; |
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status = acpi_get_handle(eeepc->handle, (char *)method, |
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handle); |
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if (status != AE_OK) { |
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pr_warn("Error finding %s\n", method); |
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return -ENODEV; |
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} |
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return 0; |
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} |
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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, int *val) |
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{ |
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if (sscanf(buf, "%i", val) != 1) |
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return -EINVAL; |
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return 0; |
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} |
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|
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static ssize_t store_sys_acpi(struct device *dev, int cm, |
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const char *buf, size_t count) |
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{ |
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struct eeepc_laptop *eeepc = dev_get_drvdata(dev); |
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int rv, value; |
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|
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rv = parse_arg(buf, &value); |
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if (rv < 0) |
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return rv; |
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rv = set_acpi(eeepc, cm, value); |
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if (rv < 0) |
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return -EIO; |
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return count; |
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} |
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|
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static ssize_t show_sys_acpi(struct device *dev, int cm, char *buf) |
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{ |
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struct eeepc_laptop *eeepc = dev_get_drvdata(dev); |
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int value = get_acpi(eeepc, cm); |
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|
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if (value < 0) |
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return -EIO; |
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return sprintf(buf, "%d\n", value); |
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} |
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|
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#define EEEPC_ACPI_SHOW_FUNC(_name, _cm) \ |
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static ssize_t _name##_show(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(dev, _cm, buf); \ |
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} |
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|
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#define EEEPC_ACPI_STORE_FUNC(_name, _cm) \ |
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static ssize_t _name##_store(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(dev, _cm, buf, count); \ |
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} |
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|
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#define EEEPC_CREATE_DEVICE_ATTR_RW(_name, _cm) \ |
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EEEPC_ACPI_SHOW_FUNC(_name, _cm) \ |
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EEEPC_ACPI_STORE_FUNC(_name, _cm) \ |
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static DEVICE_ATTR_RW(_name) |
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|
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#define EEEPC_CREATE_DEVICE_ATTR_WO(_name, _cm) \ |
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EEEPC_ACPI_STORE_FUNC(_name, _cm) \ |
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static DEVICE_ATTR_WO(_name) |
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|
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EEEPC_CREATE_DEVICE_ATTR_RW(camera, CM_ASL_CAMERA); |
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EEEPC_CREATE_DEVICE_ATTR_RW(cardr, CM_ASL_CARDREADER); |
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EEEPC_CREATE_DEVICE_ATTR_WO(disp, CM_ASL_DISPLAYSWITCH); |
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|
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struct eeepc_cpufv { |
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int num; |
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int cur; |
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}; |
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|
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static int get_cpufv(struct eeepc_laptop *eeepc, struct eeepc_cpufv *c) |
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{ |
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c->cur = get_acpi(eeepc, CM_ASL_CPUFV); |
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if (c->cur < 0) |
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return -ENODEV; |
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|
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c->num = (c->cur >> 8) & 0xff; |
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c->cur &= 0xff; |
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if (c->num == 0 || c->num > 12) |
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return -ENODEV; |
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return 0; |
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} |
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|
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static ssize_t available_cpufv_show(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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struct eeepc_laptop *eeepc = dev_get_drvdata(dev); |
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struct eeepc_cpufv c; |
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int i; |
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ssize_t len = 0; |
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|
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if (get_cpufv(eeepc, &c)) |
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return -ENODEV; |
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for (i = 0; i < c.num; i++) |
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len += sprintf(buf + len, "%d ", i); |
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len += sprintf(buf + len, "\n"); |
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return len; |
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} |
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|
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static ssize_t cpufv_show(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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struct eeepc_laptop *eeepc = dev_get_drvdata(dev); |
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struct eeepc_cpufv c; |
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|
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if (get_cpufv(eeepc, &c)) |
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return -ENODEV; |
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return sprintf(buf, "%#x\n", (c.num << 8) | c.cur); |
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} |
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|
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static ssize_t cpufv_store(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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struct eeepc_laptop *eeepc = dev_get_drvdata(dev); |
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struct eeepc_cpufv c; |
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int rv, value; |
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|
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if (eeepc->cpufv_disabled) |
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return -EPERM; |
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if (get_cpufv(eeepc, &c)) |
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return -ENODEV; |
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rv = parse_arg(buf, &value); |
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if (rv < 0) |
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return rv; |
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if (value < 0 || value >= c.num) |
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return -EINVAL; |
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rv = set_acpi(eeepc, CM_ASL_CPUFV, value); |
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if (rv) |
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return rv; |
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return count; |
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} |
|
|
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static ssize_t cpufv_disabled_show(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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struct eeepc_laptop *eeepc = dev_get_drvdata(dev); |
|
|
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return sprintf(buf, "%d\n", eeepc->cpufv_disabled); |
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} |
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|
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static ssize_t cpufv_disabled_store(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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struct eeepc_laptop *eeepc = dev_get_drvdata(dev); |
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int rv, value; |
|
|
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rv = parse_arg(buf, &value); |
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if (rv < 0) |
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return rv; |
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|
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switch (value) { |
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case 0: |
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if (eeepc->cpufv_disabled) |
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pr_warn("cpufv enabled (not officially supported on this model)\n"); |
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eeepc->cpufv_disabled = false; |
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return count; |
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case 1: |
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return -EPERM; |
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default: |
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return -EINVAL; |
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} |
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} |
|
|
|
|
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static DEVICE_ATTR_RW(cpufv); |
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static DEVICE_ATTR_RO(available_cpufv); |
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static DEVICE_ATTR_RW(cpufv_disabled); |
|
|
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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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&dev_attr_cpufv.attr, |
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&dev_attr_available_cpufv.attr, |
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&dev_attr_cpufv_disabled.attr, |
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NULL |
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}; |
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|
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static const struct attribute_group platform_attribute_group = { |
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.attrs = platform_attributes |
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}; |
|
|
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static int eeepc_platform_init(struct eeepc_laptop *eeepc) |
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{ |
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int result; |
|
|
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eeepc->platform_device = platform_device_alloc(EEEPC_LAPTOP_FILE, -1); |
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if (!eeepc->platform_device) |
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return -ENOMEM; |
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platform_set_drvdata(eeepc->platform_device, eeepc); |
|
|
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result = platform_device_add(eeepc->platform_device); |
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if (result) |
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goto fail_platform_device; |
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|
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result = sysfs_create_group(&eeepc->platform_device->dev.kobj, |
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&platform_attribute_group); |
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if (result) |
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goto fail_sysfs; |
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return 0; |
|
|
|
fail_sysfs: |
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platform_device_del(eeepc->platform_device); |
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fail_platform_device: |
|
platform_device_put(eeepc->platform_device); |
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return result; |
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} |
|
|
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static void eeepc_platform_exit(struct eeepc_laptop *eeepc) |
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{ |
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sysfs_remove_group(&eeepc->platform_device->dev.kobj, |
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&platform_attribute_group); |
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platform_device_unregister(eeepc->platform_device); |
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} |
|
|
|
/* |
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* LEDs |
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*/ |
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/* |
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* These functions actually update the LED's, and are called from a |
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* workqueue. By doing this as separate work rather than when the LED |
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* subsystem asks, we avoid messing with the Asus ACPI stuff during a |
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* potentially bad time, such as a timer interrupt. |
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*/ |
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static void tpd_led_update(struct work_struct *work) |
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{ |
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struct eeepc_laptop *eeepc; |
|
|
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eeepc = container_of(work, struct eeepc_laptop, tpd_led_work); |
|
|
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set_acpi(eeepc, CM_ASL_TPD, eeepc->tpd_led_wk); |
|
} |
|
|
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static void tpd_led_set(struct led_classdev *led_cdev, |
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enum led_brightness value) |
|
{ |
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struct eeepc_laptop *eeepc; |
|
|
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eeepc = container_of(led_cdev, struct eeepc_laptop, tpd_led); |
|
|
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eeepc->tpd_led_wk = (value > 0) ? 1 : 0; |
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queue_work(eeepc->led_workqueue, &eeepc->tpd_led_work); |
|
} |
|
|
|
static enum led_brightness tpd_led_get(struct led_classdev *led_cdev) |
|
{ |
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struct eeepc_laptop *eeepc; |
|
|
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eeepc = container_of(led_cdev, struct eeepc_laptop, tpd_led); |
|
|
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return get_acpi(eeepc, CM_ASL_TPD); |
|
} |
|
|
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static int eeepc_led_init(struct eeepc_laptop *eeepc) |
|
{ |
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int rv; |
|
|
|
if (get_acpi(eeepc, CM_ASL_TPD) == -ENODEV) |
|
return 0; |
|
|
|
eeepc->led_workqueue = create_singlethread_workqueue("led_workqueue"); |
|
if (!eeepc->led_workqueue) |
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return -ENOMEM; |
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INIT_WORK(&eeepc->tpd_led_work, tpd_led_update); |
|
|
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eeepc->tpd_led.name = "eeepc::touchpad"; |
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eeepc->tpd_led.brightness_set = tpd_led_set; |
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if (get_acpi(eeepc, CM_ASL_TPD) >= 0) /* if method is available */ |
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eeepc->tpd_led.brightness_get = tpd_led_get; |
|
eeepc->tpd_led.max_brightness = 1; |
|
|
|
rv = led_classdev_register(&eeepc->platform_device->dev, |
|
&eeepc->tpd_led); |
|
if (rv) { |
|
destroy_workqueue(eeepc->led_workqueue); |
|
return rv; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static void eeepc_led_exit(struct eeepc_laptop *eeepc) |
|
{ |
|
led_classdev_unregister(&eeepc->tpd_led); |
|
if (eeepc->led_workqueue) |
|
destroy_workqueue(eeepc->led_workqueue); |
|
} |
|
|
|
/* |
|
* PCI hotplug (for wlan rfkill) |
|
*/ |
|
static bool eeepc_wlan_rfkill_blocked(struct eeepc_laptop *eeepc) |
|
{ |
|
if (get_acpi(eeepc, CM_ASL_WLAN) == 1) |
|
return false; |
|
return true; |
|
} |
|
|
|
static void eeepc_rfkill_hotplug(struct eeepc_laptop *eeepc, acpi_handle handle) |
|
{ |
|
struct pci_dev *port; |
|
struct pci_dev *dev; |
|
struct pci_bus *bus; |
|
bool blocked = eeepc_wlan_rfkill_blocked(eeepc); |
|
bool absent; |
|
u32 l; |
|
|
|
if (eeepc->wlan_rfkill) |
|
rfkill_set_sw_state(eeepc->wlan_rfkill, blocked); |
|
|
|
mutex_lock(&eeepc->hotplug_lock); |
|
pci_lock_rescan_remove(); |
|
|
|
if (!eeepc->hotplug_slot.ops) |
|
goto out_unlock; |
|
|
|
port = acpi_get_pci_dev(handle); |
|
if (!port) { |
|
pr_warn("Unable to find port\n"); |
|
goto out_unlock; |
|
} |
|
|
|
bus = port->subordinate; |
|
|
|
if (!bus) { |
|
pr_warn("Unable to find PCI bus 1?\n"); |
|
goto out_put_dev; |
|
} |
|
|
|
if (pci_bus_read_config_dword(bus, 0, PCI_VENDOR_ID, &l)) { |
|
pr_err("Unable to read PCI config space?\n"); |
|
goto out_put_dev; |
|
} |
|
|
|
absent = (l == 0xffffffff); |
|
|
|
if (blocked != absent) { |
|
pr_warn("BIOS says wireless lan is %s, but the pci device is %s\n", |
|
blocked ? "blocked" : "unblocked", |
|
absent ? "absent" : "present"); |
|
pr_warn("skipped wireless hotplug as probably inappropriate for this model\n"); |
|
goto out_put_dev; |
|
} |
|
|
|
if (!blocked) { |
|
dev = pci_get_slot(bus, 0); |
|
if (dev) { |
|
/* Device already present */ |
|
pci_dev_put(dev); |
|
goto out_put_dev; |
|
} |
|
dev = pci_scan_single_device(bus, 0); |
|
if (dev) { |
|
pci_bus_assign_resources(bus); |
|
pci_bus_add_device(dev); |
|
} |
|
} else { |
|
dev = pci_get_slot(bus, 0); |
|
if (dev) { |
|
pci_stop_and_remove_bus_device(dev); |
|
pci_dev_put(dev); |
|
} |
|
} |
|
out_put_dev: |
|
pci_dev_put(port); |
|
|
|
out_unlock: |
|
pci_unlock_rescan_remove(); |
|
mutex_unlock(&eeepc->hotplug_lock); |
|
} |
|
|
|
static void eeepc_rfkill_hotplug_update(struct eeepc_laptop *eeepc, char *node) |
|
{ |
|
acpi_status status = AE_OK; |
|
acpi_handle handle; |
|
|
|
status = acpi_get_handle(NULL, node, &handle); |
|
|
|
if (ACPI_SUCCESS(status)) |
|
eeepc_rfkill_hotplug(eeepc, handle); |
|
} |
|
|
|
static void eeepc_rfkill_notify(acpi_handle handle, u32 event, void *data) |
|
{ |
|
struct eeepc_laptop *eeepc = data; |
|
|
|
if (event != ACPI_NOTIFY_BUS_CHECK) |
|
return; |
|
|
|
eeepc_rfkill_hotplug(eeepc, handle); |
|
} |
|
|
|
static int eeepc_register_rfkill_notifier(struct eeepc_laptop *eeepc, |
|
char *node) |
|
{ |
|
acpi_status status; |
|
acpi_handle handle; |
|
|
|
status = acpi_get_handle(NULL, node, &handle); |
|
|
|
if (ACPI_FAILURE(status)) |
|
return -ENODEV; |
|
|
|
status = acpi_install_notify_handler(handle, |
|
ACPI_SYSTEM_NOTIFY, |
|
eeepc_rfkill_notify, |
|
eeepc); |
|
if (ACPI_FAILURE(status)) |
|
pr_warn("Failed to register notify on %s\n", node); |
|
|
|
/* |
|
* Refresh pci hotplug in case the rfkill state was |
|
* changed during setup. |
|
*/ |
|
eeepc_rfkill_hotplug(eeepc, handle); |
|
return 0; |
|
} |
|
|
|
static void eeepc_unregister_rfkill_notifier(struct eeepc_laptop *eeepc, |
|
char *node) |
|
{ |
|
acpi_status status = AE_OK; |
|
acpi_handle handle; |
|
|
|
status = acpi_get_handle(NULL, node, &handle); |
|
|
|
if (ACPI_FAILURE(status)) |
|
return; |
|
|
|
status = acpi_remove_notify_handler(handle, |
|
ACPI_SYSTEM_NOTIFY, |
|
eeepc_rfkill_notify); |
|
if (ACPI_FAILURE(status)) |
|
pr_err("Error removing rfkill notify handler %s\n", |
|
node); |
|
/* |
|
* Refresh pci hotplug in case the rfkill |
|
* state was changed after |
|
* eeepc_unregister_rfkill_notifier() |
|
*/ |
|
eeepc_rfkill_hotplug(eeepc, handle); |
|
} |
|
|
|
static int eeepc_get_adapter_status(struct hotplug_slot *hotplug_slot, |
|
u8 *value) |
|
{ |
|
struct eeepc_laptop *eeepc; |
|
int val; |
|
|
|
eeepc = container_of(hotplug_slot, struct eeepc_laptop, hotplug_slot); |
|
val = get_acpi(eeepc, CM_ASL_WLAN); |
|
|
|
if (val == 1 || val == 0) |
|
*value = val; |
|
else |
|
return -EINVAL; |
|
|
|
return 0; |
|
} |
|
|
|
static const struct hotplug_slot_ops eeepc_hotplug_slot_ops = { |
|
.get_adapter_status = eeepc_get_adapter_status, |
|
.get_power_status = eeepc_get_adapter_status, |
|
}; |
|
|
|
static int eeepc_setup_pci_hotplug(struct eeepc_laptop *eeepc) |
|
{ |
|
int ret = -ENOMEM; |
|
struct pci_bus *bus = pci_find_bus(0, 1); |
|
|
|
if (!bus) { |
|
pr_err("Unable to find wifi PCI bus\n"); |
|
return -ENODEV; |
|
} |
|
|
|
eeepc->hotplug_slot.ops = &eeepc_hotplug_slot_ops; |
|
|
|
ret = pci_hp_register(&eeepc->hotplug_slot, bus, 0, "eeepc-wifi"); |
|
if (ret) { |
|
pr_err("Unable to register hotplug slot - %d\n", ret); |
|
goto error_register; |
|
} |
|
|
|
return 0; |
|
|
|
error_register: |
|
eeepc->hotplug_slot.ops = NULL; |
|
return ret; |
|
} |
|
|
|
/* |
|
* Rfkill devices |
|
*/ |
|
static int eeepc_rfkill_set(void *data, bool blocked) |
|
{ |
|
acpi_handle handle = data; |
|
|
|
return write_acpi_int(handle, NULL, !blocked); |
|
} |
|
|
|
static const struct rfkill_ops eeepc_rfkill_ops = { |
|
.set_block = eeepc_rfkill_set, |
|
}; |
|
|
|
static int eeepc_new_rfkill(struct eeepc_laptop *eeepc, |
|
struct rfkill **rfkill, |
|
const char *name, |
|
enum rfkill_type type, int cm) |
|
{ |
|
acpi_handle handle; |
|
int result; |
|
|
|
result = acpi_setter_handle(eeepc, cm, &handle); |
|
if (result < 0) |
|
return result; |
|
|
|
*rfkill = rfkill_alloc(name, &eeepc->platform_device->dev, type, |
|
&eeepc_rfkill_ops, handle); |
|
|
|
if (!*rfkill) |
|
return -EINVAL; |
|
|
|
rfkill_init_sw_state(*rfkill, get_acpi(eeepc, cm) != 1); |
|
result = rfkill_register(*rfkill); |
|
if (result) { |
|
rfkill_destroy(*rfkill); |
|
*rfkill = NULL; |
|
return result; |
|
} |
|
return 0; |
|
} |
|
|
|
static char EEEPC_RFKILL_NODE_1[] = "\\_SB.PCI0.P0P5"; |
|
static char EEEPC_RFKILL_NODE_2[] = "\\_SB.PCI0.P0P6"; |
|
static char EEEPC_RFKILL_NODE_3[] = "\\_SB.PCI0.P0P7"; |
|
|
|
static void eeepc_rfkill_exit(struct eeepc_laptop *eeepc) |
|
{ |
|
eeepc_unregister_rfkill_notifier(eeepc, EEEPC_RFKILL_NODE_1); |
|
eeepc_unregister_rfkill_notifier(eeepc, EEEPC_RFKILL_NODE_2); |
|
eeepc_unregister_rfkill_notifier(eeepc, EEEPC_RFKILL_NODE_3); |
|
if (eeepc->wlan_rfkill) { |
|
rfkill_unregister(eeepc->wlan_rfkill); |
|
rfkill_destroy(eeepc->wlan_rfkill); |
|
eeepc->wlan_rfkill = NULL; |
|
} |
|
|
|
if (eeepc->hotplug_slot.ops) |
|
pci_hp_deregister(&eeepc->hotplug_slot); |
|
|
|
if (eeepc->bluetooth_rfkill) { |
|
rfkill_unregister(eeepc->bluetooth_rfkill); |
|
rfkill_destroy(eeepc->bluetooth_rfkill); |
|
eeepc->bluetooth_rfkill = NULL; |
|
} |
|
if (eeepc->wwan3g_rfkill) { |
|
rfkill_unregister(eeepc->wwan3g_rfkill); |
|
rfkill_destroy(eeepc->wwan3g_rfkill); |
|
eeepc->wwan3g_rfkill = NULL; |
|
} |
|
if (eeepc->wimax_rfkill) { |
|
rfkill_unregister(eeepc->wimax_rfkill); |
|
rfkill_destroy(eeepc->wimax_rfkill); |
|
eeepc->wimax_rfkill = NULL; |
|
} |
|
} |
|
|
|
static int eeepc_rfkill_init(struct eeepc_laptop *eeepc) |
|
{ |
|
int result = 0; |
|
|
|
mutex_init(&eeepc->hotplug_lock); |
|
|
|
result = eeepc_new_rfkill(eeepc, &eeepc->wlan_rfkill, |
|
"eeepc-wlan", RFKILL_TYPE_WLAN, |
|
CM_ASL_WLAN); |
|
|
|
if (result && result != -ENODEV) |
|
goto exit; |
|
|
|
result = eeepc_new_rfkill(eeepc, &eeepc->bluetooth_rfkill, |
|
"eeepc-bluetooth", RFKILL_TYPE_BLUETOOTH, |
|
CM_ASL_BLUETOOTH); |
|
|
|
if (result && result != -ENODEV) |
|
goto exit; |
|
|
|
result = eeepc_new_rfkill(eeepc, &eeepc->wwan3g_rfkill, |
|
"eeepc-wwan3g", RFKILL_TYPE_WWAN, |
|
CM_ASL_3G); |
|
|
|
if (result && result != -ENODEV) |
|
goto exit; |
|
|
|
result = eeepc_new_rfkill(eeepc, &eeepc->wimax_rfkill, |
|
"eeepc-wimax", RFKILL_TYPE_WIMAX, |
|
CM_ASL_WIMAX); |
|
|
|
if (result && result != -ENODEV) |
|
goto exit; |
|
|
|
if (eeepc->hotplug_disabled) |
|
return 0; |
|
|
|
result = eeepc_setup_pci_hotplug(eeepc); |
|
/* |
|
* If we get -EBUSY then something else is handling the PCI hotplug - |
|
* don't fail in this case |
|
*/ |
|
if (result == -EBUSY) |
|
result = 0; |
|
|
|
eeepc_register_rfkill_notifier(eeepc, EEEPC_RFKILL_NODE_1); |
|
eeepc_register_rfkill_notifier(eeepc, EEEPC_RFKILL_NODE_2); |
|
eeepc_register_rfkill_notifier(eeepc, EEEPC_RFKILL_NODE_3); |
|
|
|
exit: |
|
if (result && result != -ENODEV) |
|
eeepc_rfkill_exit(eeepc); |
|
return result; |
|
} |
|
|
|
/* |
|
* Platform driver - hibernate/resume callbacks |
|
*/ |
|
static int eeepc_hotk_thaw(struct device *device) |
|
{ |
|
struct eeepc_laptop *eeepc = dev_get_drvdata(device); |
|
|
|
if (eeepc->wlan_rfkill) { |
|
int wlan; |
|
|
|
/* |
|
* Work around bios bug - acpi _PTS turns off the wireless led |
|
* during suspend. Normally it restores it on resume, but |
|
* we should kick it ourselves in case hibernation is aborted. |
|
*/ |
|
wlan = get_acpi(eeepc, CM_ASL_WLAN); |
|
if (wlan >= 0) |
|
set_acpi(eeepc, CM_ASL_WLAN, wlan); |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int eeepc_hotk_restore(struct device *device) |
|
{ |
|
struct eeepc_laptop *eeepc = dev_get_drvdata(device); |
|
|
|
/* Refresh both wlan rfkill state and pci hotplug */ |
|
if (eeepc->wlan_rfkill) { |
|
eeepc_rfkill_hotplug_update(eeepc, EEEPC_RFKILL_NODE_1); |
|
eeepc_rfkill_hotplug_update(eeepc, EEEPC_RFKILL_NODE_2); |
|
eeepc_rfkill_hotplug_update(eeepc, EEEPC_RFKILL_NODE_3); |
|
} |
|
|
|
if (eeepc->bluetooth_rfkill) |
|
rfkill_set_sw_state(eeepc->bluetooth_rfkill, |
|
get_acpi(eeepc, CM_ASL_BLUETOOTH) != 1); |
|
if (eeepc->wwan3g_rfkill) |
|
rfkill_set_sw_state(eeepc->wwan3g_rfkill, |
|
get_acpi(eeepc, CM_ASL_3G) != 1); |
|
if (eeepc->wimax_rfkill) |
|
rfkill_set_sw_state(eeepc->wimax_rfkill, |
|
get_acpi(eeepc, CM_ASL_WIMAX) != 1); |
|
|
|
return 0; |
|
} |
|
|
|
static const struct dev_pm_ops eeepc_pm_ops = { |
|
.thaw = eeepc_hotk_thaw, |
|
.restore = eeepc_hotk_restore, |
|
}; |
|
|
|
static struct platform_driver platform_driver = { |
|
.driver = { |
|
.name = EEEPC_LAPTOP_FILE, |
|
.pm = &eeepc_pm_ops, |
|
} |
|
}; |
|
|
|
/* |
|
* Hwmon device |
|
*/ |
|
|
|
#define EEEPC_EC_SC00 0x61 |
|
#define EEEPC_EC_FAN_PWM (EEEPC_EC_SC00 + 2) /* Fan PWM duty cycle (%) */ |
|
#define EEEPC_EC_FAN_HRPM (EEEPC_EC_SC00 + 5) /* High byte, fan speed (RPM) */ |
|
#define EEEPC_EC_FAN_LRPM (EEEPC_EC_SC00 + 6) /* Low byte, fan speed (RPM) */ |
|
|
|
#define EEEPC_EC_SFB0 0xD0 |
|
#define EEEPC_EC_FAN_CTRL (EEEPC_EC_SFB0 + 3) /* Byte containing SF25 */ |
|
|
|
static inline int eeepc_pwm_to_lmsensors(int value) |
|
{ |
|
return value * 255 / 100; |
|
} |
|
|
|
static inline int eeepc_lmsensors_to_pwm(int value) |
|
{ |
|
value = clamp_val(value, 0, 255); |
|
return value * 100 / 255; |
|
} |
|
|
|
static int eeepc_get_fan_pwm(void) |
|
{ |
|
u8 value = 0; |
|
|
|
ec_read(EEEPC_EC_FAN_PWM, &value); |
|
return eeepc_pwm_to_lmsensors(value); |
|
} |
|
|
|
static void eeepc_set_fan_pwm(int value) |
|
{ |
|
value = eeepc_lmsensors_to_pwm(value); |
|
ec_write(EEEPC_EC_FAN_PWM, value); |
|
} |
|
|
|
static int eeepc_get_fan_rpm(void) |
|
{ |
|
u8 high = 0; |
|
u8 low = 0; |
|
|
|
ec_read(EEEPC_EC_FAN_HRPM, &high); |
|
ec_read(EEEPC_EC_FAN_LRPM, &low); |
|
return high << 8 | low; |
|
} |
|
|
|
#define EEEPC_EC_FAN_CTRL_BIT 0x02 |
|
#define EEEPC_FAN_CTRL_MANUAL 1 |
|
#define EEEPC_FAN_CTRL_AUTO 2 |
|
|
|
static int eeepc_get_fan_ctrl(void) |
|
{ |
|
u8 value = 0; |
|
|
|
ec_read(EEEPC_EC_FAN_CTRL, &value); |
|
if (value & EEEPC_EC_FAN_CTRL_BIT) |
|
return EEEPC_FAN_CTRL_MANUAL; |
|
else |
|
return EEEPC_FAN_CTRL_AUTO; |
|
} |
|
|
|
static void eeepc_set_fan_ctrl(int manual) |
|
{ |
|
u8 value = 0; |
|
|
|
ec_read(EEEPC_EC_FAN_CTRL, &value); |
|
if (manual == EEEPC_FAN_CTRL_MANUAL) |
|
value |= EEEPC_EC_FAN_CTRL_BIT; |
|
else |
|
value &= ~EEEPC_EC_FAN_CTRL_BIT; |
|
ec_write(EEEPC_EC_FAN_CTRL, value); |
|
} |
|
|
|
static ssize_t store_sys_hwmon(void (*set)(int), const char *buf, size_t count) |
|
{ |
|
int rv, value; |
|
|
|
rv = parse_arg(buf, &value); |
|
if (rv < 0) |
|
return rv; |
|
set(value); |
|
return count; |
|
} |
|
|
|
static ssize_t show_sys_hwmon(int (*get)(void), char *buf) |
|
{ |
|
return sprintf(buf, "%d\n", get()); |
|
} |
|
|
|
#define EEEPC_SENSOR_SHOW_FUNC(_name, _get) \ |
|
static ssize_t _name##_show(struct device *dev, \ |
|
struct device_attribute *attr, \ |
|
char *buf) \ |
|
{ \ |
|
return show_sys_hwmon(_get, buf); \ |
|
} |
|
|
|
#define EEEPC_SENSOR_STORE_FUNC(_name, _set) \ |
|
static ssize_t _name##_store(struct device *dev, \ |
|
struct device_attribute *attr, \ |
|
const char *buf, size_t count) \ |
|
{ \ |
|
return store_sys_hwmon(_set, buf, count); \ |
|
} |
|
|
|
#define EEEPC_CREATE_SENSOR_ATTR_RW(_name, _get, _set) \ |
|
EEEPC_SENSOR_SHOW_FUNC(_name, _get) \ |
|
EEEPC_SENSOR_STORE_FUNC(_name, _set) \ |
|
static DEVICE_ATTR_RW(_name) |
|
|
|
#define EEEPC_CREATE_SENSOR_ATTR_RO(_name, _get) \ |
|
EEEPC_SENSOR_SHOW_FUNC(_name, _get) \ |
|
static DEVICE_ATTR_RO(_name) |
|
|
|
EEEPC_CREATE_SENSOR_ATTR_RO(fan1_input, eeepc_get_fan_rpm); |
|
EEEPC_CREATE_SENSOR_ATTR_RW(pwm1, eeepc_get_fan_pwm, |
|
eeepc_set_fan_pwm); |
|
EEEPC_CREATE_SENSOR_ATTR_RW(pwm1_enable, eeepc_get_fan_ctrl, |
|
eeepc_set_fan_ctrl); |
|
|
|
static struct attribute *hwmon_attrs[] = { |
|
&dev_attr_pwm1.attr, |
|
&dev_attr_fan1_input.attr, |
|
&dev_attr_pwm1_enable.attr, |
|
NULL |
|
}; |
|
ATTRIBUTE_GROUPS(hwmon); |
|
|
|
static int eeepc_hwmon_init(struct eeepc_laptop *eeepc) |
|
{ |
|
struct device *dev = &eeepc->platform_device->dev; |
|
struct device *hwmon; |
|
|
|
hwmon = devm_hwmon_device_register_with_groups(dev, "eeepc", NULL, |
|
hwmon_groups); |
|
if (IS_ERR(hwmon)) { |
|
pr_err("Could not register eeepc hwmon device\n"); |
|
return PTR_ERR(hwmon); |
|
} |
|
return 0; |
|
} |
|
|
|
/* |
|
* Backlight device |
|
*/ |
|
static int read_brightness(struct backlight_device *bd) |
|
{ |
|
struct eeepc_laptop *eeepc = bl_get_data(bd); |
|
|
|
return get_acpi(eeepc, CM_ASL_PANELBRIGHT); |
|
} |
|
|
|
static int set_brightness(struct backlight_device *bd, int value) |
|
{ |
|
struct eeepc_laptop *eeepc = bl_get_data(bd); |
|
|
|
return set_acpi(eeepc, CM_ASL_PANELBRIGHT, value); |
|
} |
|
|
|
static int update_bl_status(struct backlight_device *bd) |
|
{ |
|
return set_brightness(bd, bd->props.brightness); |
|
} |
|
|
|
static const struct backlight_ops eeepcbl_ops = { |
|
.get_brightness = read_brightness, |
|
.update_status = update_bl_status, |
|
}; |
|
|
|
static int eeepc_backlight_notify(struct eeepc_laptop *eeepc) |
|
{ |
|
struct backlight_device *bd = eeepc->backlight_device; |
|
int old = bd->props.brightness; |
|
|
|
backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY); |
|
|
|
return old; |
|
} |
|
|
|
static int eeepc_backlight_init(struct eeepc_laptop *eeepc) |
|
{ |
|
struct backlight_properties props; |
|
struct backlight_device *bd; |
|
|
|
memset(&props, 0, sizeof(struct backlight_properties)); |
|
props.type = BACKLIGHT_PLATFORM; |
|
props.max_brightness = 15; |
|
bd = backlight_device_register(EEEPC_LAPTOP_FILE, |
|
&eeepc->platform_device->dev, eeepc, |
|
&eeepcbl_ops, &props); |
|
if (IS_ERR(bd)) { |
|
pr_err("Could not register eeepc backlight device\n"); |
|
eeepc->backlight_device = NULL; |
|
return PTR_ERR(bd); |
|
} |
|
eeepc->backlight_device = bd; |
|
bd->props.brightness = read_brightness(bd); |
|
bd->props.power = FB_BLANK_UNBLANK; |
|
backlight_update_status(bd); |
|
return 0; |
|
} |
|
|
|
static void eeepc_backlight_exit(struct eeepc_laptop *eeepc) |
|
{ |
|
backlight_device_unregister(eeepc->backlight_device); |
|
eeepc->backlight_device = NULL; |
|
} |
|
|
|
|
|
/* |
|
* Input device (i.e. hotkeys) |
|
*/ |
|
static int eeepc_input_init(struct eeepc_laptop *eeepc) |
|
{ |
|
struct input_dev *input; |
|
int error; |
|
|
|
input = input_allocate_device(); |
|
if (!input) |
|
return -ENOMEM; |
|
|
|
input->name = "Asus EeePC extra buttons"; |
|
input->phys = EEEPC_LAPTOP_FILE "/input0"; |
|
input->id.bustype = BUS_HOST; |
|
input->dev.parent = &eeepc->platform_device->dev; |
|
|
|
error = sparse_keymap_setup(input, eeepc_keymap, NULL); |
|
if (error) { |
|
pr_err("Unable to setup input device keymap\n"); |
|
goto err_free_dev; |
|
} |
|
|
|
error = input_register_device(input); |
|
if (error) { |
|
pr_err("Unable to register input device\n"); |
|
goto err_free_dev; |
|
} |
|
|
|
eeepc->inputdev = input; |
|
return 0; |
|
|
|
err_free_dev: |
|
input_free_device(input); |
|
return error; |
|
} |
|
|
|
static void eeepc_input_exit(struct eeepc_laptop *eeepc) |
|
{ |
|
if (eeepc->inputdev) |
|
input_unregister_device(eeepc->inputdev); |
|
eeepc->inputdev = NULL; |
|
} |
|
|
|
/* |
|
* ACPI driver |
|
*/ |
|
static void eeepc_input_notify(struct eeepc_laptop *eeepc, int event) |
|
{ |
|
if (!eeepc->inputdev) |
|
return; |
|
if (!sparse_keymap_report_event(eeepc->inputdev, event, 1, true)) |
|
pr_info("Unknown key %x pressed\n", event); |
|
} |
|
|
|
static void eeepc_acpi_notify(struct acpi_device *device, u32 event) |
|
{ |
|
struct eeepc_laptop *eeepc = acpi_driver_data(device); |
|
int old_brightness, new_brightness; |
|
u16 count; |
|
|
|
if (event > ACPI_MAX_SYS_NOTIFY) |
|
return; |
|
count = eeepc->event_count[event % 128]++; |
|
acpi_bus_generate_netlink_event(device->pnp.device_class, |
|
dev_name(&device->dev), event, |
|
count); |
|
|
|
/* Brightness events are special */ |
|
if (event < NOTIFY_BRN_MIN || event > NOTIFY_BRN_MAX) { |
|
eeepc_input_notify(eeepc, event); |
|
return; |
|
} |
|
|
|
/* Ignore them completely if the acpi video driver is used */ |
|
if (!eeepc->backlight_device) |
|
return; |
|
|
|
/* Update the backlight device. */ |
|
old_brightness = eeepc_backlight_notify(eeepc); |
|
|
|
/* Convert event to keypress (obsolescent hack) */ |
|
new_brightness = event - NOTIFY_BRN_MIN; |
|
|
|
if (new_brightness < old_brightness) { |
|
event = NOTIFY_BRN_MIN; /* brightness down */ |
|
} else if (new_brightness > old_brightness) { |
|
event = NOTIFY_BRN_MAX; /* brightness up */ |
|
} else { |
|
/* |
|
* no change in brightness - already at min/max, |
|
* event will be desired value (or else ignored) |
|
*/ |
|
} |
|
eeepc_input_notify(eeepc, event); |
|
} |
|
|
|
static void eeepc_dmi_check(struct eeepc_laptop *eeepc) |
|
{ |
|
const char *model; |
|
|
|
model = dmi_get_system_info(DMI_PRODUCT_NAME); |
|
if (!model) |
|
return; |
|
|
|
/* |
|
* Blacklist for setting cpufv (cpu speed). |
|
* |
|
* EeePC 4G ("701") implements CFVS, but it is not supported |
|
* by the pre-installed OS, and the original option to change it |
|
* in the BIOS setup screen was removed in later versions. |
|
* |
|
* Judging by the lack of "Super Hybrid Engine" on Asus product pages, |
|
* this applies to all "701" models (4G/4G Surf/2G Surf). |
|
* |
|
* So Asus made a deliberate decision not to support it on this model. |
|
* We have several reports that using it can cause the system to hang |
|
* |
|
* The hang has also been reported on a "702" (Model name "8G"?). |
|
* |
|
* We avoid dmi_check_system() / dmi_match(), because they use |
|
* substring matching. We don't want to affect the "701SD" |
|
* and "701SDX" models, because they do support S.H.E. |
|
*/ |
|
if (strcmp(model, "701") == 0 || strcmp(model, "702") == 0) { |
|
eeepc->cpufv_disabled = true; |
|
pr_info("model %s does not officially support setting cpu speed\n", |
|
model); |
|
pr_info("cpufv disabled to avoid instability\n"); |
|
} |
|
|
|
/* |
|
* Blacklist for wlan hotplug |
|
* |
|
* Eeepc 1005HA doesn't work like others models and don't need the |
|
* hotplug code. In fact, current hotplug code seems to unplug another |
|
* device... |
|
*/ |
|
if (strcmp(model, "1005HA") == 0 || strcmp(model, "1201N") == 0 || |
|
strcmp(model, "1005PE") == 0) { |
|
eeepc->hotplug_disabled = true; |
|
pr_info("wlan hotplug disabled\n"); |
|
} |
|
} |
|
|
|
static void cmsg_quirk(struct eeepc_laptop *eeepc, int cm, const char *name) |
|
{ |
|
int dummy; |
|
|
|
/* Some BIOSes do not report cm although it is available. |
|
Check if cm_getv[cm] works and, if yes, assume cm should be set. */ |
|
if (!(eeepc->cm_supported & (1 << cm)) |
|
&& !read_acpi_int(eeepc->handle, cm_getv[cm], &dummy)) { |
|
pr_info("%s (%x) not reported by BIOS, enabling anyway\n", |
|
name, 1 << cm); |
|
eeepc->cm_supported |= 1 << cm; |
|
} |
|
} |
|
|
|
static void cmsg_quirks(struct eeepc_laptop *eeepc) |
|
{ |
|
cmsg_quirk(eeepc, CM_ASL_LID, "LID"); |
|
cmsg_quirk(eeepc, CM_ASL_TYPE, "TYPE"); |
|
cmsg_quirk(eeepc, CM_ASL_PANELPOWER, "PANELPOWER"); |
|
cmsg_quirk(eeepc, CM_ASL_TPD, "TPD"); |
|
} |
|
|
|
static int eeepc_acpi_init(struct eeepc_laptop *eeepc) |
|
{ |
|
unsigned int init_flags; |
|
int result; |
|
|
|
result = acpi_bus_get_status(eeepc->device); |
|
if (result) |
|
return result; |
|
if (!eeepc->device->status.present) { |
|
pr_err("Hotkey device not present, aborting\n"); |
|
return -ENODEV; |
|
} |
|
|
|
init_flags = DISABLE_ASL_WLAN | DISABLE_ASL_DISPLAYSWITCH; |
|
pr_notice("Hotkey init flags 0x%x\n", init_flags); |
|
|
|
if (write_acpi_int(eeepc->handle, "INIT", init_flags)) { |
|
pr_err("Hotkey initialization failed\n"); |
|
return -ENODEV; |
|
} |
|
|
|
/* get control methods supported */ |
|
if (read_acpi_int(eeepc->handle, "CMSG", &eeepc->cm_supported)) { |
|
pr_err("Get control methods supported failed\n"); |
|
return -ENODEV; |
|
} |
|
cmsg_quirks(eeepc); |
|
pr_info("Get control methods supported: 0x%x\n", eeepc->cm_supported); |
|
|
|
return 0; |
|
} |
|
|
|
static void eeepc_enable_camera(struct eeepc_laptop *eeepc) |
|
{ |
|
/* |
|
* If the following call to set_acpi() fails, it's because there's no |
|
* camera so we can ignore the error. |
|
*/ |
|
if (get_acpi(eeepc, CM_ASL_CAMERA) == 0) |
|
set_acpi(eeepc, CM_ASL_CAMERA, 1); |
|
} |
|
|
|
static bool eeepc_device_present; |
|
|
|
static int eeepc_acpi_add(struct acpi_device *device) |
|
{ |
|
struct eeepc_laptop *eeepc; |
|
int result; |
|
|
|
pr_notice(EEEPC_LAPTOP_NAME "\n"); |
|
eeepc = kzalloc(sizeof(struct eeepc_laptop), GFP_KERNEL); |
|
if (!eeepc) |
|
return -ENOMEM; |
|
eeepc->handle = device->handle; |
|
strcpy(acpi_device_name(device), EEEPC_ACPI_DEVICE_NAME); |
|
strcpy(acpi_device_class(device), EEEPC_ACPI_CLASS); |
|
device->driver_data = eeepc; |
|
eeepc->device = device; |
|
|
|
eeepc->hotplug_disabled = hotplug_disabled; |
|
|
|
eeepc_dmi_check(eeepc); |
|
|
|
result = eeepc_acpi_init(eeepc); |
|
if (result) |
|
goto fail_platform; |
|
eeepc_enable_camera(eeepc); |
|
|
|
/* |
|
* Register the platform device first. It is used as a parent for the |
|
* sub-devices below. |
|
* |
|
* Note that if there are multiple instances of this ACPI device it |
|
* will bail out, because the platform device is registered with a |
|
* fixed name. Of course it doesn't make sense to have more than one, |
|
* and machine-specific scripts find the fixed name convenient. But |
|
* It's also good for us to exclude multiple instances because both |
|
* our hwmon and our wlan rfkill subdevice use global ACPI objects |
|
* (the EC and the wlan PCI slot respectively). |
|
*/ |
|
result = eeepc_platform_init(eeepc); |
|
if (result) |
|
goto fail_platform; |
|
|
|
if (acpi_video_get_backlight_type() == acpi_backlight_vendor) { |
|
result = eeepc_backlight_init(eeepc); |
|
if (result) |
|
goto fail_backlight; |
|
} |
|
|
|
result = eeepc_input_init(eeepc); |
|
if (result) |
|
goto fail_input; |
|
|
|
result = eeepc_hwmon_init(eeepc); |
|
if (result) |
|
goto fail_hwmon; |
|
|
|
result = eeepc_led_init(eeepc); |
|
if (result) |
|
goto fail_led; |
|
|
|
result = eeepc_rfkill_init(eeepc); |
|
if (result) |
|
goto fail_rfkill; |
|
|
|
eeepc_device_present = true; |
|
return 0; |
|
|
|
fail_rfkill: |
|
eeepc_led_exit(eeepc); |
|
fail_led: |
|
fail_hwmon: |
|
eeepc_input_exit(eeepc); |
|
fail_input: |
|
eeepc_backlight_exit(eeepc); |
|
fail_backlight: |
|
eeepc_platform_exit(eeepc); |
|
fail_platform: |
|
kfree(eeepc); |
|
|
|
return result; |
|
} |
|
|
|
static int eeepc_acpi_remove(struct acpi_device *device) |
|
{ |
|
struct eeepc_laptop *eeepc = acpi_driver_data(device); |
|
|
|
eeepc_backlight_exit(eeepc); |
|
eeepc_rfkill_exit(eeepc); |
|
eeepc_input_exit(eeepc); |
|
eeepc_led_exit(eeepc); |
|
eeepc_platform_exit(eeepc); |
|
|
|
kfree(eeepc); |
|
return 0; |
|
} |
|
|
|
|
|
static const struct acpi_device_id eeepc_device_ids[] = { |
|
{EEEPC_ACPI_HID, 0}, |
|
{"", 0}, |
|
}; |
|
MODULE_DEVICE_TABLE(acpi, eeepc_device_ids); |
|
|
|
static struct acpi_driver eeepc_acpi_driver = { |
|
.name = EEEPC_LAPTOP_NAME, |
|
.class = EEEPC_ACPI_CLASS, |
|
.owner = THIS_MODULE, |
|
.ids = eeepc_device_ids, |
|
.flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS, |
|
.ops = { |
|
.add = eeepc_acpi_add, |
|
.remove = eeepc_acpi_remove, |
|
.notify = eeepc_acpi_notify, |
|
}, |
|
}; |
|
|
|
|
|
static int __init eeepc_laptop_init(void) |
|
{ |
|
int result; |
|
|
|
result = platform_driver_register(&platform_driver); |
|
if (result < 0) |
|
return result; |
|
|
|
result = acpi_bus_register_driver(&eeepc_acpi_driver); |
|
if (result < 0) |
|
goto fail_acpi_driver; |
|
|
|
if (!eeepc_device_present) { |
|
result = -ENODEV; |
|
goto fail_no_device; |
|
} |
|
|
|
return 0; |
|
|
|
fail_no_device: |
|
acpi_bus_unregister_driver(&eeepc_acpi_driver); |
|
fail_acpi_driver: |
|
platform_driver_unregister(&platform_driver); |
|
return result; |
|
} |
|
|
|
static void __exit eeepc_laptop_exit(void) |
|
{ |
|
acpi_bus_unregister_driver(&eeepc_acpi_driver); |
|
platform_driver_unregister(&platform_driver); |
|
} |
|
|
|
module_init(eeepc_laptop_init); |
|
module_exit(eeepc_laptop_exit);
|
|
|