1573 строки
37 KiB
C
1573 строки
37 KiB
C
/*
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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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* 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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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/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 <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/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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#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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#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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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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static bool hotplug_disabled;
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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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"acpi4asus-user@lists.sourceforge.net.");
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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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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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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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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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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_END, 0 },
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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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struct platform_device *platform_device;
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struct acpi_device *device; /* the device we are in */
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struct device *hwmon_device;
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struct backlight_device *backlight_device;
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struct input_dev *inputdev;
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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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struct hotplug_slot *hotplug_slot;
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struct mutex hotplug_lock;
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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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* 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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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, NULL);
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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(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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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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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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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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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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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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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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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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* 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(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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rv = parse_arg(buf, count, &value);
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if (rv > 0)
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value = set_acpi(eeepc, cm, value);
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if (value < 0)
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return -EIO;
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return rv;
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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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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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#define EEEPC_CREATE_DEVICE_ATTR(_name, _mode, _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(dev, _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(dev, _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 = _mode }, \
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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, 0644, CM_ASL_CAMERA);
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EEEPC_CREATE_DEVICE_ATTR(cardr, 0644, CM_ASL_CARDREADER);
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EEEPC_CREATE_DEVICE_ATTR(disp, 0200, CM_ASL_DISPLAYSWITCH);
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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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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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c->num = (c->cur >> 8) & 0xff;
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c->cur &= 0xff;
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if (c->cur < 0 || 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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static ssize_t show_available_cpufv(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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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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static ssize_t show_cpufv(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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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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static ssize_t store_cpufv(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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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, count, &value);
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if (rv < 0)
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return rv;
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if (!rv || value < 0 || value >= c.num)
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return -EINVAL;
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set_acpi(eeepc, CM_ASL_CPUFV, value);
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return rv;
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}
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static ssize_t show_cpufv_disabled(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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static ssize_t store_cpufv_disabled(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, count, &value);
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if (rv < 0)
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return rv;
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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 "
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"on this model)\n");
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eeepc->cpufv_disabled = false;
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return rv;
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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 struct device_attribute dev_attr_cpufv = {
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.attr = {
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.name = "cpufv",
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.mode = 0644 },
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.show = show_cpufv,
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.store = store_cpufv
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};
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static struct device_attribute dev_attr_available_cpufv = {
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.attr = {
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.name = "available_cpufv",
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.mode = 0444 },
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.show = show_available_cpufv
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};
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static struct device_attribute dev_attr_cpufv_disabled = {
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.attr = {
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.name = "cpufv_disabled",
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.mode = 0644 },
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.show = show_cpufv_disabled,
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.store = store_cpufv_disabled
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};
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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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static 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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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;
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fail_sysfs:
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platform_device_del(eeepc->platform_device);
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fail_platform_device:
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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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}
|
|
|
|
/*
|
|
* LEDs
|
|
*/
|
|
/*
|
|
* These functions actually update the LED's, and are called from a
|
|
* workqueue. By doing this as separate work rather than when the LED
|
|
* subsystem asks, we avoid messing with the Asus ACPI stuff during a
|
|
* potentially bad time, such as a timer interrupt.
|
|
*/
|
|
static void tpd_led_update(struct work_struct *work)
|
|
{
|
|
struct eeepc_laptop *eeepc;
|
|
|
|
eeepc = container_of(work, struct eeepc_laptop, tpd_led_work);
|
|
|
|
set_acpi(eeepc, CM_ASL_TPD, eeepc->tpd_led_wk);
|
|
}
|
|
|
|
static void tpd_led_set(struct led_classdev *led_cdev,
|
|
enum led_brightness value)
|
|
{
|
|
struct eeepc_laptop *eeepc;
|
|
|
|
eeepc = container_of(led_cdev, struct eeepc_laptop, tpd_led);
|
|
|
|
eeepc->tpd_led_wk = (value > 0) ? 1 : 0;
|
|
queue_work(eeepc->led_workqueue, &eeepc->tpd_led_work);
|
|
}
|
|
|
|
static enum led_brightness tpd_led_get(struct led_classdev *led_cdev)
|
|
{
|
|
struct eeepc_laptop *eeepc;
|
|
|
|
eeepc = container_of(led_cdev, struct eeepc_laptop, tpd_led);
|
|
|
|
return get_acpi(eeepc, CM_ASL_TPD);
|
|
}
|
|
|
|
static int eeepc_led_init(struct eeepc_laptop *eeepc)
|
|
{
|
|
int rv;
|
|
|
|
if (get_acpi(eeepc, CM_ASL_TPD) == -ENODEV)
|
|
return 0;
|
|
|
|
eeepc->led_workqueue = create_singlethread_workqueue("led_workqueue");
|
|
if (!eeepc->led_workqueue)
|
|
return -ENOMEM;
|
|
INIT_WORK(&eeepc->tpd_led_work, tpd_led_update);
|
|
|
|
eeepc->tpd_led.name = "eeepc::touchpad";
|
|
eeepc->tpd_led.brightness_set = tpd_led_set;
|
|
if (get_acpi(eeepc, CM_ASL_TPD) >= 0) /* if method is available */
|
|
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)
|
|
{
|
|
if (!IS_ERR_OR_NULL(eeepc->tpd_led.dev))
|
|
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);
|
|
|
|
if (eeepc->hotplug_slot) {
|
|
port = acpi_get_pci_dev(handle);
|
|
if (!port) {
|
|
pr_warning("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);
|
|
if (pci_bus_add_device(dev))
|
|
pr_err("Unable to hotplug wifi\n");
|
|
}
|
|
} 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:
|
|
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_SUCCESS(status)) {
|
|
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);
|
|
} else
|
|
return -ENODEV;
|
|
|
|
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_SUCCESS(status)) {
|
|
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 = hotplug_slot->private;
|
|
int val = get_acpi(eeepc, CM_ASL_WLAN);
|
|
|
|
if (val == 1 || val == 0)
|
|
*value = val;
|
|
else
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void eeepc_cleanup_pci_hotplug(struct hotplug_slot *hotplug_slot)
|
|
{
|
|
kfree(hotplug_slot->info);
|
|
kfree(hotplug_slot);
|
|
}
|
|
|
|
static struct hotplug_slot_ops eeepc_hotplug_slot_ops = {
|
|
.owner = THIS_MODULE,
|
|
.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 = kzalloc(sizeof(struct hotplug_slot), GFP_KERNEL);
|
|
if (!eeepc->hotplug_slot)
|
|
goto error_slot;
|
|
|
|
eeepc->hotplug_slot->info = kzalloc(sizeof(struct hotplug_slot_info),
|
|
GFP_KERNEL);
|
|
if (!eeepc->hotplug_slot->info)
|
|
goto error_info;
|
|
|
|
eeepc->hotplug_slot->private = eeepc;
|
|
eeepc->hotplug_slot->release = &eeepc_cleanup_pci_hotplug;
|
|
eeepc->hotplug_slot->ops = &eeepc_hotplug_slot_ops;
|
|
eeepc_get_adapter_status(eeepc->hotplug_slot,
|
|
&eeepc->hotplug_slot->info->adapter_status);
|
|
|
|
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:
|
|
kfree(eeepc->hotplug_slot->info);
|
|
error_info:
|
|
kfree(eeepc->hotplug_slot);
|
|
eeepc->hotplug_slot = NULL;
|
|
error_slot:
|
|
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 void eeepc_rfkill_exit(struct eeepc_laptop *eeepc)
|
|
{
|
|
eeepc_unregister_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P5");
|
|
eeepc_unregister_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P6");
|
|
eeepc_unregister_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P7");
|
|
if (eeepc->wlan_rfkill) {
|
|
rfkill_unregister(eeepc->wlan_rfkill);
|
|
rfkill_destroy(eeepc->wlan_rfkill);
|
|
eeepc->wlan_rfkill = NULL;
|
|
}
|
|
|
|
if (eeepc->hotplug_slot)
|
|
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, "\\_SB.PCI0.P0P5");
|
|
eeepc_register_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P6");
|
|
eeepc_register_rfkill_notifier(eeepc, "\\_SB.PCI0.P0P7");
|
|
|
|
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) {
|
|
bool 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);
|
|
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, "\\_SB.PCI0.P0P5");
|
|
eeepc_rfkill_hotplug_update(eeepc, "\\_SB.PCI0.P0P6");
|
|
eeepc_rfkill_hotplug_update(eeepc, "\\_SB.PCI0.P0P7");
|
|
}
|
|
|
|
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,
|
|
.owner = THIS_MODULE,
|
|
.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 int eeepc_get_fan_pwm(void)
|
|
{
|
|
u8 value = 0;
|
|
|
|
ec_read(EEEPC_EC_FAN_PWM, &value);
|
|
return value * 255 / 100;
|
|
}
|
|
|
|
static void eeepc_set_fan_pwm(int value)
|
|
{
|
|
value = clamp_val(value, 0, 255);
|
|
value = value * 100 / 255;
|
|
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;
|
|
}
|
|
|
|
static int eeepc_get_fan_ctrl(void)
|
|
{
|
|
u8 value = 0;
|
|
|
|
ec_read(EEEPC_EC_FAN_CTRL, &value);
|
|
if (value & 0x02)
|
|
return 1; /* manual */
|
|
else
|
|
return 2; /* automatic */
|
|
}
|
|
|
|
static void eeepc_set_fan_ctrl(int manual)
|
|
{
|
|
u8 value = 0;
|
|
|
|
ec_read(EEEPC_EC_FAN_CTRL, &value);
|
|
if (manual == 1)
|
|
value |= 0x02;
|
|
else
|
|
value &= ~0x02;
|
|
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, 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
|
|
};
|
|
|
|
static void eeepc_hwmon_exit(struct eeepc_laptop *eeepc)
|
|
{
|
|
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 int eeepc_hwmon_init(struct eeepc_laptop *eeepc)
|
|
{
|
|
struct device *hwmon;
|
|
int result;
|
|
|
|
hwmon = hwmon_device_register(&eeepc->platform_device->dev);
|
|
if (IS_ERR(hwmon)) {
|
|
pr_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(eeepc);
|
|
return result;
|
|
}
|
|
|
|
/*
|
|
* 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)
|
|
{
|
|
if (eeepc->backlight_device)
|
|
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) {
|
|
pr_info("Unable to allocate input device\n");
|
|
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_keymap;
|
|
}
|
|
|
|
eeepc->inputdev = input;
|
|
return 0;
|
|
|
|
err_free_keymap:
|
|
sparse_keymap_free(input);
|
|
err_free_dev:
|
|
input_free_device(input);
|
|
return error;
|
|
}
|
|
|
|
static void eeepc_input_exit(struct eeepc_laptop *eeepc)
|
|
{
|
|
if (eeepc->inputdev) {
|
|
sparse_keymap_free(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);
|
|
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) {
|
|
|
|
/* Ignore them completely if the acpi video driver is used */
|
|
if (eeepc->backlight_device != NULL) {
|
|
int old_brightness, new_brightness;
|
|
|
|
/* 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);
|
|
}
|
|
} else {
|
|
/* Everything else is a bona-fide keypress event */
|
|
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_backlight_support()) {
|
|
result = eeepc_backlight_init(eeepc);
|
|
if (result)
|
|
goto fail_backlight;
|
|
} else
|
|
pr_info("Backlight controlled by ACPI video driver\n");
|
|
|
|
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:
|
|
eeepc_hwmon_exit(eeepc);
|
|
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_hwmon_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);
|