Revision 65deeed7b34bc5b8d3cbff495e8fa2ae7b563480 authored by Greg Rose on 24 March 2010, 09:35:42 UTC, committed by David S. Miller on 26 March 2010, 18:56:00 UTC
In the Tx mapping function if a DMA error occurred then the unwind of previously mapped sections would improperly check an unsigned int if it was less than zero. Changed the index variable to signed to avoid the error. Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
1 parent 48c11a5
hid-apple.c
/*
* USB HID quirks support for Linux
*
* Copyright (c) 1999 Andreas Gal
* Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
* Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
* Copyright (c) 2006-2007 Jiri Kosina
* Copyright (c) 2007 Paul Walmsley
* Copyright (c) 2008 Jiri Slaby <jirislaby@gmail.com>
*/
/*
* 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/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include <linux/usb.h>
#include "hid-ids.h"
#define APPLE_RDESC_JIS 0x0001
#define APPLE_IGNORE_MOUSE 0x0002
#define APPLE_HAS_FN 0x0004
#define APPLE_HIDDEV 0x0008
#define APPLE_ISO_KEYBOARD 0x0010
#define APPLE_MIGHTYMOUSE 0x0020
#define APPLE_INVERT_HWHEEL 0x0040
#define APPLE_IGNORE_HIDINPUT 0x0080
#define APPLE_NUMLOCK_EMULATION 0x0100
#define APPLE_FLAG_FKEY 0x01
static unsigned int fnmode = 1;
module_param(fnmode, uint, 0644);
MODULE_PARM_DESC(fnmode, "Mode of fn key on Apple keyboards (0 = disabled, "
"[1] = fkeyslast, 2 = fkeysfirst)");
static unsigned int iso_layout = 1;
module_param(iso_layout, uint, 0644);
MODULE_PARM_DESC(iso_layout, "Enable/Disable hardcoded ISO-layout of the keyboard. "
"(0 = disabled, [1] = enabled)");
struct apple_sc {
unsigned long quirks;
unsigned int fn_on;
DECLARE_BITMAP(pressed_fn, KEY_CNT);
DECLARE_BITMAP(pressed_numlock, KEY_CNT);
};
struct apple_key_translation {
u16 from;
u16 to;
u8 flags;
};
static const struct apple_key_translation apple_fn_keys[] = {
{ KEY_BACKSPACE, KEY_DELETE },
{ KEY_ENTER, KEY_INSERT },
{ KEY_F1, KEY_BRIGHTNESSDOWN, APPLE_FLAG_FKEY },
{ KEY_F2, KEY_BRIGHTNESSUP, APPLE_FLAG_FKEY },
{ KEY_F3, KEY_SCALE, APPLE_FLAG_FKEY },
{ KEY_F4, KEY_DASHBOARD, APPLE_FLAG_FKEY },
{ KEY_F5, KEY_KBDILLUMDOWN, APPLE_FLAG_FKEY },
{ KEY_F6, KEY_KBDILLUMUP, APPLE_FLAG_FKEY },
{ KEY_F7, KEY_PREVIOUSSONG, APPLE_FLAG_FKEY },
{ KEY_F8, KEY_PLAYPAUSE, APPLE_FLAG_FKEY },
{ KEY_F9, KEY_NEXTSONG, APPLE_FLAG_FKEY },
{ KEY_F10, KEY_MUTE, APPLE_FLAG_FKEY },
{ KEY_F11, KEY_VOLUMEDOWN, APPLE_FLAG_FKEY },
{ KEY_F12, KEY_VOLUMEUP, APPLE_FLAG_FKEY },
{ KEY_UP, KEY_PAGEUP },
{ KEY_DOWN, KEY_PAGEDOWN },
{ KEY_LEFT, KEY_HOME },
{ KEY_RIGHT, KEY_END },
{ }
};
static const struct apple_key_translation powerbook_fn_keys[] = {
{ KEY_BACKSPACE, KEY_DELETE },
{ KEY_F1, KEY_BRIGHTNESSDOWN, APPLE_FLAG_FKEY },
{ KEY_F2, KEY_BRIGHTNESSUP, APPLE_FLAG_FKEY },
{ KEY_F3, KEY_MUTE, APPLE_FLAG_FKEY },
{ KEY_F4, KEY_VOLUMEDOWN, APPLE_FLAG_FKEY },
{ KEY_F5, KEY_VOLUMEUP, APPLE_FLAG_FKEY },
{ KEY_F6, KEY_NUMLOCK, APPLE_FLAG_FKEY },
{ KEY_F7, KEY_SWITCHVIDEOMODE, APPLE_FLAG_FKEY },
{ KEY_F8, KEY_KBDILLUMTOGGLE, APPLE_FLAG_FKEY },
{ KEY_F9, KEY_KBDILLUMDOWN, APPLE_FLAG_FKEY },
{ KEY_F10, KEY_KBDILLUMUP, APPLE_FLAG_FKEY },
{ KEY_UP, KEY_PAGEUP },
{ KEY_DOWN, KEY_PAGEDOWN },
{ KEY_LEFT, KEY_HOME },
{ KEY_RIGHT, KEY_END },
{ }
};
static const struct apple_key_translation powerbook_numlock_keys[] = {
{ KEY_J, KEY_KP1 },
{ KEY_K, KEY_KP2 },
{ KEY_L, KEY_KP3 },
{ KEY_U, KEY_KP4 },
{ KEY_I, KEY_KP5 },
{ KEY_O, KEY_KP6 },
{ KEY_7, KEY_KP7 },
{ KEY_8, KEY_KP8 },
{ KEY_9, KEY_KP9 },
{ KEY_M, KEY_KP0 },
{ KEY_DOT, KEY_KPDOT },
{ KEY_SLASH, KEY_KPPLUS },
{ KEY_SEMICOLON, KEY_KPMINUS },
{ KEY_P, KEY_KPASTERISK },
{ KEY_MINUS, KEY_KPEQUAL },
{ KEY_0, KEY_KPSLASH },
{ KEY_F6, KEY_NUMLOCK },
{ KEY_KPENTER, KEY_KPENTER },
{ KEY_BACKSPACE, KEY_BACKSPACE },
{ }
};
static const struct apple_key_translation apple_iso_keyboard[] = {
{ KEY_GRAVE, KEY_102ND },
{ KEY_102ND, KEY_GRAVE },
{ }
};
static const struct apple_key_translation *apple_find_translation(
const struct apple_key_translation *table, u16 from)
{
const struct apple_key_translation *trans;
/* Look for the translation */
for (trans = table; trans->from; trans++)
if (trans->from == from)
return trans;
return NULL;
}
static int hidinput_apple_event(struct hid_device *hid, struct input_dev *input,
struct hid_usage *usage, __s32 value)
{
struct apple_sc *asc = hid_get_drvdata(hid);
const struct apple_key_translation *trans;
if (usage->code == KEY_FN) {
asc->fn_on = !!value;
input_event(input, usage->type, usage->code, value);
return 1;
}
if (fnmode) {
int do_translate;
trans = apple_find_translation((hid->product < 0x21d ||
hid->product >= 0x300) ?
powerbook_fn_keys : apple_fn_keys,
usage->code);
if (trans) {
if (test_bit(usage->code, asc->pressed_fn))
do_translate = 1;
else if (trans->flags & APPLE_FLAG_FKEY)
do_translate = (fnmode == 2 && asc->fn_on) ||
(fnmode == 1 && !asc->fn_on);
else
do_translate = asc->fn_on;
if (do_translate) {
if (value)
set_bit(usage->code, asc->pressed_fn);
else
clear_bit(usage->code, asc->pressed_fn);
input_event(input, usage->type, trans->to,
value);
return 1;
}
}
if (asc->quirks & APPLE_NUMLOCK_EMULATION &&
(test_bit(usage->code, asc->pressed_numlock) ||
test_bit(LED_NUML, input->led))) {
trans = apple_find_translation(powerbook_numlock_keys,
usage->code);
if (trans) {
if (value)
set_bit(usage->code,
asc->pressed_numlock);
else
clear_bit(usage->code,
asc->pressed_numlock);
input_event(input, usage->type, trans->to,
value);
}
return 1;
}
}
if (iso_layout) {
if (asc->quirks & APPLE_ISO_KEYBOARD) {
trans = apple_find_translation(apple_iso_keyboard, usage->code);
if (trans) {
input_event(input, usage->type, trans->to, value);
return 1;
}
}
}
return 0;
}
static int apple_event(struct hid_device *hdev, struct hid_field *field,
struct hid_usage *usage, __s32 value)
{
struct apple_sc *asc = hid_get_drvdata(hdev);
if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput ||
!usage->type)
return 0;
if ((asc->quirks & APPLE_INVERT_HWHEEL) &&
usage->code == REL_HWHEEL) {
input_event(field->hidinput->input, usage->type, usage->code,
-value);
return 1;
}
if ((asc->quirks & APPLE_HAS_FN) &&
hidinput_apple_event(hdev, field->hidinput->input,
usage, value))
return 1;
return 0;
}
/*
* MacBook JIS keyboard has wrong logical maximum
*/
static void apple_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int rsize)
{
struct apple_sc *asc = hid_get_drvdata(hdev);
if ((asc->quirks & APPLE_RDESC_JIS) && rsize >= 60 &&
rdesc[53] == 0x65 && rdesc[59] == 0x65) {
dev_info(&hdev->dev, "fixing up MacBook JIS keyboard report "
"descriptor\n");
rdesc[53] = rdesc[59] = 0xe7;
}
}
static void apple_setup_input(struct input_dev *input)
{
const struct apple_key_translation *trans;
set_bit(KEY_NUMLOCK, input->keybit);
/* Enable all needed keys */
for (trans = apple_fn_keys; trans->from; trans++)
set_bit(trans->to, input->keybit);
for (trans = powerbook_fn_keys; trans->from; trans++)
set_bit(trans->to, input->keybit);
for (trans = powerbook_numlock_keys; trans->from; trans++)
set_bit(trans->to, input->keybit);
for (trans = apple_iso_keyboard; trans->from; trans++)
set_bit(trans->to, input->keybit);
}
static int apple_input_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
if (usage->hid == (HID_UP_CUSTOM | 0x0003)) {
/* The fn key on Apple USB keyboards */
set_bit(EV_REP, hi->input->evbit);
hid_map_usage_clear(hi, usage, bit, max, EV_KEY, KEY_FN);
apple_setup_input(hi->input);
return 1;
}
/* we want the hid layer to go through standard path (set and ignore) */
return 0;
}
static int apple_input_mapped(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
struct apple_sc *asc = hid_get_drvdata(hdev);
if (asc->quirks & APPLE_MIGHTYMOUSE) {
if (usage->hid == HID_GD_Z)
hid_map_usage(hi, usage, bit, max, EV_REL, REL_HWHEEL);
else if (usage->code == BTN_1)
hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_2);
else if (usage->code == BTN_2)
hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_1);
}
return 0;
}
static int apple_probe(struct hid_device *hdev,
const struct hid_device_id *id)
{
unsigned long quirks = id->driver_data;
struct apple_sc *asc;
unsigned int connect_mask = HID_CONNECT_DEFAULT;
int ret;
asc = kzalloc(sizeof(*asc), GFP_KERNEL);
if (asc == NULL) {
dev_err(&hdev->dev, "can't alloc apple descriptor\n");
return -ENOMEM;
}
asc->quirks = quirks;
hid_set_drvdata(hdev, asc);
ret = hid_parse(hdev);
if (ret) {
dev_err(&hdev->dev, "parse failed\n");
goto err_free;
}
if (quirks & APPLE_HIDDEV)
connect_mask |= HID_CONNECT_HIDDEV_FORCE;
if (quirks & APPLE_IGNORE_HIDINPUT)
connect_mask &= ~HID_CONNECT_HIDINPUT;
ret = hid_hw_start(hdev, connect_mask);
if (ret) {
dev_err(&hdev->dev, "hw start failed\n");
goto err_free;
}
return 0;
err_free:
kfree(asc);
return ret;
}
static void apple_remove(struct hid_device *hdev)
{
hid_hw_stop(hdev);
kfree(hid_get_drvdata(hdev));
}
static const struct hid_device_id apple_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ATV_IRCONTROL),
.driver_data = APPLE_HIDDEV | APPLE_IGNORE_HIDINPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4),
.driver_data = APPLE_HIDDEV | APPLE_IGNORE_HIDINPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE),
.driver_data = APPLE_MIGHTYMOUSE | APPLE_INVERT_HWHEEL },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN |
APPLE_ISO_KEYBOARD },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN |
APPLE_ISO_KEYBOARD },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN |
APPLE_RDESC_JIS },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN |
APPLE_ISO_KEYBOARD },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN |
APPLE_RDESC_JIS },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ANSI),
.driver_data = APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ISO),
.driver_data = APPLE_HAS_FN | APPLE_ISO_KEYBOARD },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_JIS),
.driver_data = APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ANSI),
.driver_data = APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ISO),
.driver_data = APPLE_HAS_FN | APPLE_ISO_KEYBOARD },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_JIS),
.driver_data = APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN |
APPLE_RDESC_JIS },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ISO),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN |
APPLE_ISO_KEYBOARD },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_JIS),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI),
.driver_data = APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO),
.driver_data = APPLE_HAS_FN | APPLE_ISO_KEYBOARD },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS),
.driver_data = APPLE_HAS_FN | APPLE_RDESC_JIS },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI),
.driver_data = APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO),
.driver_data = APPLE_HAS_FN | APPLE_ISO_KEYBOARD },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS),
.driver_data = APPLE_HAS_FN | APPLE_RDESC_JIS },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI),
.driver_data = APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO),
.driver_data = APPLE_HAS_FN | APPLE_ISO_KEYBOARD },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS),
.driver_data = APPLE_HAS_FN | APPLE_RDESC_JIS },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN |
APPLE_ISO_KEYBOARD },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_JIS),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY),
.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
{ }
};
MODULE_DEVICE_TABLE(hid, apple_devices);
static struct hid_driver apple_driver = {
.name = "apple",
.id_table = apple_devices,
.report_fixup = apple_report_fixup,
.probe = apple_probe,
.remove = apple_remove,
.event = apple_event,
.input_mapping = apple_input_mapping,
.input_mapped = apple_input_mapped,
};
static int __init apple_init(void)
{
int ret;
ret = hid_register_driver(&apple_driver);
if (ret)
printk(KERN_ERR "can't register apple driver\n");
return ret;
}
static void __exit apple_exit(void)
{
hid_unregister_driver(&apple_driver);
}
module_init(apple_init);
module_exit(apple_exit);
MODULE_LICENSE("GPL");
Computing file changes ...
