x86: Add amilo-rfkill driver for some Fujitsu-Siemens Amilo laptops (c215ab9a) · Commits · 戴 / test

drivers/platform/x86/Kconfig

+7 −0

Original line number	Diff line number	Diff line
		@@ -143,6 +143,13 @@ config FUJITSU_LAPTOP_DEBUG

		If you are not sure, say N here.

		config AMILO_RFKILL
		tristate "Fujitsu-Siemens Amilo rfkill support"
		depends on RFKILL
		---help---
		This is a driver for enabling wifi on some Fujitsu-Siemens Amilo
		laptops.

		config TC1100_WMI
		tristate "HP Compaq TC1100 Tablet WMI Extras (EXPERIMENTAL)"
		depends on !X86_64

drivers/platform/x86/Makefile

+1 −0

Original line number	Diff line number	Diff line
		@@ -17,6 +17,7 @@ obj-$(CONFIG_ACER_WMI) += acer-wmi.o
		obj-$(CONFIG_ACERHDF) += acerhdf.o
		obj-$(CONFIG_HP_ACCEL) += hp_accel.o
		obj-$(CONFIG_HP_WMI) += hp-wmi.o
		obj-$(CONFIG_AMILO_RFKILL) += amilo-rfkill.o
		obj-$(CONFIG_TC1100_WMI) += tc1100-wmi.o
		obj-$(CONFIG_SONY_LAPTOP) += sony-laptop.o
		obj-$(CONFIG_IDEAPAD_LAPTOP) += ideapad-laptop.o

drivers/platform/x86/amilo-rfkill.c

0 → 100644

+173 −0

Original line number	Diff line number	Diff line
		/*
		* Support for rfkill on some Fujitsu-Siemens Amilo laptops.
		* Copyright 2011 Ben Hutchings.
		*
		* Based in part on the fsam7440 driver, which is:
		* Copyright 2005 Alejandro Vidal Mata & Javier Vidal Mata.
		* and on the fsaa1655g driver, which is:
		* Copyright 2006 Martin Večeřa.
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License as published by
		* the Free Software Foundation; either version 2 of the License, or
		* (at your option) any later version.
		*/

		#include <linux/module.h>
		#include <linux/dmi.h>
		#include <linux/i8042.h>
		#include <linux/io.h>
		#include <linux/moduleparam.h>
		#include <linux/platform_device.h>
		#include <linux/rfkill.h>

		/*
		* These values were obtained from disassembling and debugging the
		* PM.exe program installed in the Fujitsu-Siemens AMILO A1655G
		*/
		#define A1655_WIFI_COMMAND 0x10C5
		#define A1655_WIFI_ON 0x25
		#define A1655_WIFI_OFF 0x45

		static int amilo_a1655_rfkill_set_block(void *data, bool blocked)
		{
		u8 param = blocked ? A1655_WIFI_OFF : A1655_WIFI_ON;
		int rc;

		i8042_lock_chip();
		rc = i8042_command(&param, A1655_WIFI_COMMAND);
		i8042_unlock_chip();
		return rc;
		}

		static const struct rfkill_ops amilo_a1655_rfkill_ops = {
		.set_block = amilo_a1655_rfkill_set_block
		};

		/*
		* These values were obtained from disassembling the PM.exe program
		* installed in the Fujitsu-Siemens AMILO M 7440
		*/
		#define M7440_PORT1 0x118f
		#define M7440_PORT2 0x118e
		#define M7440_RADIO_ON1 0x12
		#define M7440_RADIO_ON2 0x80
		#define M7440_RADIO_OFF1 0x10
		#define M7440_RADIO_OFF2 0x00

		static int amilo_m7440_rfkill_set_block(void *data, bool blocked)
		{
		u8 val1 = blocked ? M7440_RADIO_OFF1 : M7440_RADIO_ON1;
		u8 val2 = blocked ? M7440_RADIO_OFF2 : M7440_RADIO_ON2;

		outb(val1, M7440_PORT1);
		outb(val2, M7440_PORT2);

		/* Check whether the state has changed correctly */
		if (inb(M7440_PORT1) != val1 \|\| inb(M7440_PORT2) != val2)
		return -EIO;

		return 0;
		}

		static const struct rfkill_ops amilo_m7440_rfkill_ops = {
		.set_block = amilo_m7440_rfkill_set_block
		};

		static const struct dmi_system_id __devinitdata amilo_rfkill_id_table[] = {
		{
		.matches = {
		DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
		DMI_MATCH(DMI_BOARD_NAME, "AMILO A1655"),
		},
		.driver_data = (void *)&amilo_a1655_rfkill_ops
		},
		{
		.matches = {
		DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
		DMI_MATCH(DMI_BOARD_NAME, "AMILO M7440"),
		},
		.driver_data = (void *)&amilo_m7440_rfkill_ops
		},
		{}
		};

		static struct platform_device *amilo_rfkill_pdev;
		static struct rfkill *amilo_rfkill_dev;

		static int __devinit amilo_rfkill_probe(struct platform_device *device)
		{
		const struct dmi_system_id *system_id =
		dmi_first_match(amilo_rfkill_id_table);
		int rc;

		amilo_rfkill_dev = rfkill_alloc(KBUILD_MODNAME, &device->dev,
		RFKILL_TYPE_WLAN,
		system_id->driver_data, NULL);
		if (!amilo_rfkill_dev)
		return -ENOMEM;

		rc = rfkill_register(amilo_rfkill_dev);
		if (rc)
		goto fail;

		return 0;

		fail:
		rfkill_destroy(amilo_rfkill_dev);
		return rc;
		}

		static int amilo_rfkill_remove(struct platform_device *device)
		{
		rfkill_unregister(amilo_rfkill_dev);
		rfkill_destroy(amilo_rfkill_dev);
		return 0;
		}

		static struct platform_driver amilo_rfkill_driver = {
		.driver = {
		.name = KBUILD_MODNAME,
		.owner = THIS_MODULE,
		},
		.probe = amilo_rfkill_probe,
		.remove = amilo_rfkill_remove,
		};

		static int __init amilo_rfkill_init(void)
		{
		int rc;

		if (dmi_first_match(amilo_rfkill_id_table) == NULL)
		return -ENODEV;

		rc = platform_driver_register(&amilo_rfkill_driver);
		if (rc)
		return rc;

		amilo_rfkill_pdev = platform_device_register_simple(KBUILD_MODNAME, -1,
		NULL, 0);
		if (IS_ERR(amilo_rfkill_pdev)) {
		rc = PTR_ERR(amilo_rfkill_pdev);
		goto fail;
		}

		return 0;

		fail:
		platform_driver_unregister(&amilo_rfkill_driver);
		return rc;
		}

		static void __exit amilo_rfkill_exit(void)
		{
		platform_device_unregister(amilo_rfkill_pdev);
		platform_driver_unregister(&amilo_rfkill_driver);
		}

		MODULE_AUTHOR("Ben Hutchings <ben@decadent.org.uk>");
		MODULE_LICENSE("GPL");
		MODULE_DEVICE_TABLE(dmi, amilo_rfkill_id_table);

		module_init(amilo_rfkill_init);
		module_exit(amilo_rfkill_exit);

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