forked from Minki/linux
Staging: quickstart: Some style, whitespaces and typos fixes
Signed-off-by: Szymon Janc <szymon@janc.net.pl> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -4,7 +4,7 @@
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*
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* Copyright (C) 2007-2010 Angelo Arrifano <miknix@gmail.com>
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*
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* Information gathered from disassebled dsdt and from here:
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* Information gathered from disassembled dsdt and from here:
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* <http://www.microsoft.com/whdc/system/platform/firmware/DirAppLaunch.mspx>
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*
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* This program is free software; you can redistribute it and/or modify
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@ -37,21 +37,23 @@ MODULE_AUTHOR("Angelo Arrifano");
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MODULE_DESCRIPTION("ACPI Direct App Launch driver");
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MODULE_LICENSE("GPL");
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#define QUICKSTART_ACPI_DEVICE_NAME "quickstart"
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#define QUICKSTART_ACPI_CLASS "quickstart"
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#define QUICKSTART_ACPI_HID "PNP0C32"
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#define QUICKSTART_ACPI_DEVICE_NAME "quickstart"
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#define QUICKSTART_ACPI_CLASS "quickstart"
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#define QUICKSTART_ACPI_HID "PNP0C32"
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#define QUICKSTART_PF_DRIVER_NAME "quickstart"
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#define QUICKSTART_PF_DEVICE_NAME "quickstart"
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#define QUICKSTART_PF_DEVATTR_NAME "pressed_button"
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#define QUICKSTART_PF_DRIVER_NAME "quickstart"
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#define QUICKSTART_PF_DEVICE_NAME "quickstart"
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#define QUICKSTART_PF_DEVATTR_NAME "pressed_button"
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#define QUICKSTART_MAX_BTN_NAME_LEN 16
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#define QUICKSTART_MAX_BTN_NAME_LEN 16
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/* There will be two events:
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* 0x02 - A hot button was pressed while device was off/sleeping.
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* 0x80 - A hot button was pressed while device was up. */
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#define QUICKSTART_EVENT_WAKE 0x02
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#define QUICKSTART_EVENT_RUNTIME 0x80
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/*
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* There will be two events:
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* 0x02 - A hot button was pressed while device was off/sleeping.
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* 0x80 - A hot button was pressed while device was up.
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*/
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#define QUICKSTART_EVENT_WAKE 0x02
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#define QUICKSTART_EVENT_RUNTIME 0x80
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struct quickstart_btn {
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char *name;
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@ -64,14 +66,14 @@ static struct quickstart_driver_data {
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struct quickstart_btn *pressed;
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} quickstart_data;
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/* ACPI driver Structs */
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/* ACPI driver structs */
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struct quickstart_acpi {
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struct acpi_device *device;
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struct quickstart_btn *btn;
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};
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static int quickstart_acpi_add(struct acpi_device *device);
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static int quickstart_acpi_remove(struct acpi_device *device, int type);
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static const struct acpi_device_id quickstart_device_ids[] = {
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static const struct acpi_device_id quickstart_device_ids[] = {
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{QUICKSTART_ACPI_HID, 0},
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{"", 0},
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};
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@ -111,12 +113,10 @@ static struct platform_driver pf_driver = {
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}
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};
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/*
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* Platform driver functions
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*/
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/* Platform driver functions */
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static ssize_t buttons_show(struct device *dev,
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struct device_attribute *attr,
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char *buf)
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struct device_attribute *attr,
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char *buf)
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{
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int count = 0;
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struct quickstart_btn *ptr = quickstart_data.btn_lst;
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@ -137,8 +137,8 @@ static ssize_t buttons_show(struct device *dev,
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}
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static ssize_t pressed_button_show(struct device *dev,
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struct device_attribute *attr,
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char *buf)
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struct device_attribute *attr,
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char *buf)
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{
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return snprintf(buf, PAGE_SIZE, "%s\n",
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(quickstart_data.pressed ?
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@ -147,8 +147,8 @@ static ssize_t pressed_button_show(struct device *dev,
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static ssize_t pressed_button_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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struct device_attribute *attr,
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const char *buf, size_t count)
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{
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if (count < 2)
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return -EINVAL;
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@ -160,7 +160,7 @@ static ssize_t pressed_button_store(struct device *dev,
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return count;
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}
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/* Hotstart Helper functions */
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/* Helper functions */
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static int quickstart_btnlst_add(struct quickstart_btn **data)
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{
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struct quickstart_btn **ptr = &quickstart_data.btn_lst;
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@ -240,22 +240,26 @@ static void quickstart_acpi_ghid(struct quickstart_acpi *quickstart)
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if (!quickstart)
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return;
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/* This returns a buffer telling the button usage ID,
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* and triggers pending notify events (The ones before booting). */
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status = acpi_evaluate_object(quickstart->device->handle,
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"GHID", NULL, &buffer);
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/*
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* This returns a buffer telling the button usage ID,
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* and triggers pending notify events (The ones before booting).
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*/
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status = acpi_evaluate_object(quickstart->device->handle, "GHID", NULL,
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&buffer);
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if (ACPI_FAILURE(status) || !buffer.pointer) {
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printk(KERN_ERR "quickstart: %s GHID method failed.\n",
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quickstart->btn->name);
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quickstart->btn->name);
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return;
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}
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if (buffer.length < 8)
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return;
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/* <<The GHID method can return a BYTE, WORD, or DWORD.
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/*
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* <<The GHID method can return a BYTE, WORD, or DWORD.
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* The value must be encoded in little-endian byte
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* order (least significant byte first).>> */
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* order (least significant byte first).>>
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*/
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usageid = *((uint32_t *)(buffer.pointer + (buffer.length - 8)));
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quickstart->btn->id = usageid;
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@ -339,20 +343,17 @@ static int quickstart_acpi_remove(struct acpi_device *device, int type)
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quickstart = acpi_driver_data(device);
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status = acpi_remove_notify_handler(device->handle,
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ACPI_ALL_NOTIFY,
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quickstart_acpi_notify);
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status = acpi_remove_notify_handler(device->handle, ACPI_ALL_NOTIFY,
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quickstart_acpi_notify);
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if (ACPI_FAILURE(status))
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printk(KERN_ERR "quickstart: Error removing notify handler\n");
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kfree(quickstart);
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return 0;
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}
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/* Module functions */
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static void quickstart_exit(void)
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{
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input_unregister_device(quickstart_input);
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@ -367,8 +368,6 @@ static void quickstart_exit(void)
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acpi_bus_unregister_driver(&quickstart_acpi_driver);
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quickstart_btnlst_free();
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return;
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}
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static int __init quickstart_init_input(void)
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@ -444,14 +443,13 @@ static int __init quickstart_init(void)
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if (ret)
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goto fail_dev_file2;
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/* Input device */
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ret = quickstart_init_input();
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if (ret)
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goto fail_input;
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printk(KERN_INFO "quickstart: ACPI Direct App Launch ver %s\n",
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QUICKSTART_VERSION);
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QUICKSTART_VERSION);
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return 0;
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fail_input:
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