mirror of
https://github.com/torvalds/linux.git
synced 2024-12-07 11:31:41 +00:00
24c9d96ddb
Based on 1 normalized pattern(s): 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 version 2 of the license this driver is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this software if not see http www gnu org licenses extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 8 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141333.861653206@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
139 lines
3.9 KiB
C
139 lines
3.9 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/***************************************************************************
|
|
* Copyright (C) 2010-2012 by Bruno Prémont <bonbons@linux-vserver.org> *
|
|
* *
|
|
* Based on Logitech G13 driver (v0.4) *
|
|
* Copyright (C) 2009 by Rick L. Vinyard, Jr. <rvinyard@cs.nmsu.edu> *
|
|
* *
|
|
***************************************************************************/
|
|
|
|
#include <linux/hid.h>
|
|
#include <linux/hid-debug.h>
|
|
#include <linux/input.h>
|
|
#include "hid-ids.h"
|
|
|
|
#include <linux/fb.h>
|
|
#include <linux/vmalloc.h>
|
|
#include <linux/backlight.h>
|
|
#include <linux/lcd.h>
|
|
|
|
#include <linux/leds.h>
|
|
|
|
#include <linux/seq_file.h>
|
|
#include <linux/debugfs.h>
|
|
|
|
#include <linux/completion.h>
|
|
#include <linux/uaccess.h>
|
|
#include <linux/module.h>
|
|
#include <media/rc-core.h>
|
|
|
|
#include "hid-picolcd.h"
|
|
|
|
|
|
int picolcd_raw_cir(struct picolcd_data *data,
|
|
struct hid_report *report, u8 *raw_data, int size)
|
|
{
|
|
unsigned long flags;
|
|
int i, w, sz;
|
|
struct ir_raw_event rawir = {};
|
|
|
|
/* ignore if rc_dev is NULL or status is shunned */
|
|
spin_lock_irqsave(&data->lock, flags);
|
|
if (!data->rc_dev || (data->status & PICOLCD_CIR_SHUN)) {
|
|
spin_unlock_irqrestore(&data->lock, flags);
|
|
return 1;
|
|
}
|
|
spin_unlock_irqrestore(&data->lock, flags);
|
|
|
|
/* PicoLCD USB packets contain 16-bit intervals in network order,
|
|
* with value negated for pulse. Intervals are in microseconds.
|
|
*
|
|
* Note: some userspace LIRC code for PicoLCD says negated values
|
|
* for space - is it a matter of IR chip? (pulse for my TSOP2236)
|
|
*
|
|
* In addition, the first interval seems to be around 15000 + base
|
|
* interval for non-first report of IR data - thus the quirk below
|
|
* to get RC_CODE to understand Sony and JVC remotes I have at hand
|
|
*/
|
|
sz = size > 0 ? min((int)raw_data[0], size-1) : 0;
|
|
for (i = 0; i+1 < sz; i += 2) {
|
|
w = (raw_data[i] << 8) | (raw_data[i+1]);
|
|
rawir.pulse = !!(w & 0x8000);
|
|
rawir.duration = US_TO_NS(rawir.pulse ? (65536 - w) : w);
|
|
/* Quirk!! - see above */
|
|
if (i == 0 && rawir.duration > 15000000)
|
|
rawir.duration -= 15000000;
|
|
ir_raw_event_store(data->rc_dev, &rawir);
|
|
}
|
|
ir_raw_event_handle(data->rc_dev);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int picolcd_cir_open(struct rc_dev *dev)
|
|
{
|
|
struct picolcd_data *data = dev->priv;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&data->lock, flags);
|
|
data->status &= ~PICOLCD_CIR_SHUN;
|
|
spin_unlock_irqrestore(&data->lock, flags);
|
|
return 0;
|
|
}
|
|
|
|
static void picolcd_cir_close(struct rc_dev *dev)
|
|
{
|
|
struct picolcd_data *data = dev->priv;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&data->lock, flags);
|
|
data->status |= PICOLCD_CIR_SHUN;
|
|
spin_unlock_irqrestore(&data->lock, flags);
|
|
}
|
|
|
|
/* initialize CIR input device */
|
|
int picolcd_init_cir(struct picolcd_data *data, struct hid_report *report)
|
|
{
|
|
struct rc_dev *rdev;
|
|
int ret = 0;
|
|
|
|
rdev = rc_allocate_device(RC_DRIVER_IR_RAW);
|
|
if (!rdev)
|
|
return -ENOMEM;
|
|
|
|
rdev->priv = data;
|
|
rdev->allowed_protocols = RC_PROTO_BIT_ALL_IR_DECODER;
|
|
rdev->open = picolcd_cir_open;
|
|
rdev->close = picolcd_cir_close;
|
|
rdev->device_name = data->hdev->name;
|
|
rdev->input_phys = data->hdev->phys;
|
|
rdev->input_id.bustype = data->hdev->bus;
|
|
rdev->input_id.vendor = data->hdev->vendor;
|
|
rdev->input_id.product = data->hdev->product;
|
|
rdev->input_id.version = data->hdev->version;
|
|
rdev->dev.parent = &data->hdev->dev;
|
|
rdev->driver_name = PICOLCD_NAME;
|
|
rdev->map_name = RC_MAP_RC6_MCE;
|
|
rdev->timeout = MS_TO_NS(100);
|
|
rdev->rx_resolution = US_TO_NS(1);
|
|
|
|
ret = rc_register_device(rdev);
|
|
if (ret)
|
|
goto err;
|
|
data->rc_dev = rdev;
|
|
return 0;
|
|
|
|
err:
|
|
rc_free_device(rdev);
|
|
return ret;
|
|
}
|
|
|
|
void picolcd_exit_cir(struct picolcd_data *data)
|
|
{
|
|
struct rc_dev *rdev = data->rc_dev;
|
|
|
|
data->rc_dev = NULL;
|
|
rc_unregister_device(rdev);
|
|
}
|
|
|