eabebf2314
Changes in 4.9.199
dm snapshot: use mutex instead of rw_semaphore
dm snapshot: introduce account_start_copy() and account_end_copy()
dm snapshot: rework COW throttling to fix deadlock
dm: Use kzalloc for all structs with embedded biosets/mempools
sc16is7xx: Fix for "Unexpected interrupt: 8"
HID: i2c-hid: add Direkt-Tek DTLAPY133-1 to descriptor override
x86/cpu: Add Atom Tremont (Jacobsville)
HID: i2c-hid: Add Odys Winbook 13 to descriptor override
scripts/setlocalversion: Improve -dirty check with git-status --no-optional-locks
usb: handle warm-reset port requests on hub resume
rtc: pcf8523: set xtal load capacitance from DT
exec: load_script: Do not exec truncated interpreter path
iio: fix center temperature of bmc150-accel-core
perf map: Fix overlapped map handling
perf jevents: Fix period for Intel fixed counters
staging: rtl8188eu: fix null dereference when kzalloc fails
RDMA/iwcm: Fix a lock inversion issue
gpio: max77620: Use correct unit for debounce times
fs: cifs: mute -Wunused-const-variable message
serial: mctrl_gpio: Check for NULL pointer
efi/cper: Fix endianness of PCIe class code
efi/x86: Do not clean dummy variable in kexec path
ocfs2: clear zero in unaligned direct IO
fs: ocfs2: fix possible null-pointer dereferences in ocfs2_xa_prepare_entry()
fs: ocfs2: fix a possible null-pointer dereference in ocfs2_write_end_nolock()
fs: ocfs2: fix a possible null-pointer dereference in ocfs2_info_scan_inode_alloc()
MIPS: fw: sni: Fix out of bounds init of o32 stack
NFSv4: Fix leak of clp->cl_acceptor string
s390/uaccess: avoid (false positive) compiler warnings
tracing: Initialize iter->seq after zeroing in tracing_read_pipe()
USB: legousbtower: fix a signedness bug in tower_probe()
thunderbolt: Use 32-bit writes when writing ring producer/consumer
ath6kl: fix a NULL-ptr-deref bug in ath6kl_usb_alloc_urb_from_pipe()
fuse: flush dirty data/metadata before non-truncate setattr
fuse: truncate pending writes on O_TRUNC
ALSA: bebob: Fix prototype of helper function to return negative value
UAS: Revert commit 3ae62a42090f ("UAS: fix alignment of scatter/gather segments")
USB: gadget: Reject endpoints with 0 maxpacket value
usb-storage: Revert commit 747668dbc061 ("usb-storage: Set virt_boundary_mask to avoid SG overflows")
USB: ldusb: fix ring-buffer locking
USB: ldusb: fix control-message timeout
USB: serial: whiteheat: fix potential slab corruption
USB: serial: whiteheat: fix line-speed endianness
HID: i2c-hid: add Trekstor Primebook C11B to descriptor override
HID: Fix assumption that devices have inputs
HID: fix error message in hid_open_report()
nl80211: fix validation of mesh path nexthop
s390/cmm: fix information leak in cmm_timeout_handler()
rtlwifi: Fix potential overflow on P2P code
dmaengine: cppi41: Fix cppi41_dma_prep_slave_sg() when idle
llc: fix sk_buff leak in llc_sap_state_process()
llc: fix sk_buff leak in llc_conn_service()
bonding: fix potential NULL deref in bond_update_slave_arr
net: usb: sr9800: fix uninitialized local variable
sch_netem: fix rcu splat in netem_enqueue()
sctp: fix the issue that flags are ignored when using kernel_connect
sctp: not bind the socket in sctp_connect
xfs: Correctly invert xfs_buftarg LRU isolation logic
ALSA: timer: Follow standard EXPORT_SYMBOL() declarations
ALSA: timer: Limit max instances per timer
ALSA: timer: Simplify error path in snd_timer_open()
ALSA: timer: Fix mutex deadlock at releasing card
Revert "ALSA: hda: Flush interrupts on disabling"
Linux 4.9.199
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
108 lines
2.8 KiB
C
108 lines
2.8 KiB
C
/*
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* Force feedback support for Logitech RumblePad and Rumblepad 2
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*
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* Copyright (c) 2008 Anssi Hannula <anssi.hannula@gmail.com>
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*/
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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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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/input.h>
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#include <linux/slab.h>
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#include <linux/hid.h>
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#include "hid-lg.h"
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struct lg2ff_device {
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struct hid_report *report;
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};
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static int play_effect(struct input_dev *dev, void *data,
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struct ff_effect *effect)
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{
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struct hid_device *hid = input_get_drvdata(dev);
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struct lg2ff_device *lg2ff = data;
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int weak, strong;
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strong = effect->u.rumble.strong_magnitude;
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weak = effect->u.rumble.weak_magnitude;
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if (weak || strong) {
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weak = weak * 0xff / 0xffff;
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strong = strong * 0xff / 0xffff;
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lg2ff->report->field[0]->value[0] = 0x51;
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lg2ff->report->field[0]->value[2] = weak;
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lg2ff->report->field[0]->value[4] = strong;
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} else {
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lg2ff->report->field[0]->value[0] = 0xf3;
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lg2ff->report->field[0]->value[2] = 0x00;
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lg2ff->report->field[0]->value[4] = 0x00;
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}
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hid_hw_request(hid, lg2ff->report, HID_REQ_SET_REPORT);
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return 0;
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}
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int lg2ff_init(struct hid_device *hid)
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{
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struct lg2ff_device *lg2ff;
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struct hid_report *report;
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struct hid_input *hidinput;
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struct input_dev *dev;
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int error;
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if (list_empty(&hid->inputs)) {
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hid_err(hid, "no inputs found\n");
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return -ENODEV;
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}
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hidinput = list_entry(hid->inputs.next, struct hid_input, list);
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dev = hidinput->input;
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/* Check that the report looks ok */
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report = hid_validate_values(hid, HID_OUTPUT_REPORT, 0, 0, 7);
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if (!report)
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return -ENODEV;
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lg2ff = kmalloc(sizeof(struct lg2ff_device), GFP_KERNEL);
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if (!lg2ff)
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return -ENOMEM;
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set_bit(FF_RUMBLE, dev->ffbit);
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error = input_ff_create_memless(dev, lg2ff, play_effect);
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if (error) {
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kfree(lg2ff);
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return error;
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}
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lg2ff->report = report;
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report->field[0]->value[0] = 0xf3;
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report->field[0]->value[1] = 0x00;
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report->field[0]->value[2] = 0x00;
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report->field[0]->value[3] = 0x00;
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report->field[0]->value[4] = 0x00;
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report->field[0]->value[5] = 0x00;
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report->field[0]->value[6] = 0x00;
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hid_hw_request(hid, report, HID_REQ_SET_REPORT);
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hid_info(hid, "Force feedback for Logitech variant 2 rumble devices by Anssi Hannula <anssi.hannula@gmail.com>\n");
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return 0;
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}
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