cregit-Linux how code gets into the kernel

Release 4.7 drivers/platform/x86/amilo-rfkill.c

/*
 * 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; }

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ben hutchingsben hutchings44100.00%1100.00%
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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; }

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ben hutchingsben hutchings69100.00%1100.00%
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static const struct rfkill_ops amilo_m7440_rfkill_ops = { .set_block = amilo_m7440_rfkill_set_block }; static const struct dmi_system_id 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 L1310"), }, .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 amilo_rfkill_probe(struct platform_device *device) { int rc; const struct dmi_system_id *system_id = dmi_first_match(amilo_rfkill_id_table); if (!system_id) return -ENXIO; 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; }

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ben hutchingsben hutchings7886.67%150.00%
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static int amilo_rfkill_remove(struct platform_device *device) { rfkill_unregister(amilo_rfkill_dev); rfkill_destroy(amilo_rfkill_dev); return 0; }

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ben hutchingsben hutchings24100.00%1100.00%
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static struct platform_driver amilo_rfkill_driver = { .driver = { .name = KBUILD_MODNAME, }, .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; }

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ben hutchingsben hutchings87100.00%1100.00%
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static void __exit amilo_rfkill_exit(void) { platform_device_unregister(amilo_rfkill_pdev); platform_driver_unregister(&amilo_rfkill_driver); }

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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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ben hutchingsben hutchings54792.71%133.33%
jerome meinkejerome meinke315.25%133.33%
jesper juhljesper juhl122.03%133.33%
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