mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-22 11:21:16 +07:00
af901ca181
That is "success", "unknown", "through", "performance", "[re|un]mapping" , "access", "default", "reasonable", "[con]currently", "temperature" , "channel", "[un]used", "application", "example","hierarchy", "therefore" , "[over|under]flow", "contiguous", "threshold", "enough" and others. Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
268 lines
7.2 KiB
C
268 lines
7.2 KiB
C
/* dvb-usb-remote.c is part of the DVB USB library.
|
|
*
|
|
* Copyright (C) 2004-6 Patrick Boettcher (patrick.boettcher@desy.de)
|
|
* see dvb-usb-init.c for copyright information.
|
|
*
|
|
* This file contains functions for initializing the input-device and for handling remote-control-queries.
|
|
*/
|
|
#include "dvb-usb-common.h"
|
|
#include <linux/usb/input.h>
|
|
|
|
static int dvb_usb_getkeycode(struct input_dev *dev,
|
|
int scancode, int *keycode)
|
|
{
|
|
struct dvb_usb_device *d = input_get_drvdata(dev);
|
|
|
|
struct dvb_usb_rc_key *keymap = d->props.rc_key_map;
|
|
int i;
|
|
|
|
/* See if we can match the raw key code. */
|
|
for (i = 0; i < d->props.rc_key_map_size; i++)
|
|
if (keymap[i].scan == scancode) {
|
|
*keycode = keymap[i].event;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* If is there extra space, returns KEY_RESERVED,
|
|
* otherwise, input core won't let dvb_usb_setkeycode
|
|
* to work
|
|
*/
|
|
for (i = 0; i < d->props.rc_key_map_size; i++)
|
|
if (keymap[i].event == KEY_RESERVED ||
|
|
keymap[i].event == KEY_UNKNOWN) {
|
|
*keycode = KEY_RESERVED;
|
|
return 0;
|
|
}
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int dvb_usb_setkeycode(struct input_dev *dev,
|
|
int scancode, int keycode)
|
|
{
|
|
struct dvb_usb_device *d = input_get_drvdata(dev);
|
|
|
|
struct dvb_usb_rc_key *keymap = d->props.rc_key_map;
|
|
int i;
|
|
|
|
/* Search if it is replacing an existing keycode */
|
|
for (i = 0; i < d->props.rc_key_map_size; i++)
|
|
if (keymap[i].scan == scancode) {
|
|
keymap[i].event = keycode;
|
|
return 0;
|
|
}
|
|
|
|
/* Search if is there a clean entry. If so, use it */
|
|
for (i = 0; i < d->props.rc_key_map_size; i++)
|
|
if (keymap[i].event == KEY_RESERVED ||
|
|
keymap[i].event == KEY_UNKNOWN) {
|
|
keymap[i].scan = scancode;
|
|
keymap[i].event = keycode;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* FIXME: Currently, it is not possible to increase the size of
|
|
* scancode table. For it to happen, one possibility
|
|
* would be to allocate a table with key_map_size + 1,
|
|
* copying data, appending the new key on it, and freeing
|
|
* the old one - or maybe just allocating some spare space
|
|
*/
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* Remote-control poll function - called every dib->rc_query_interval ms to see
|
|
* whether the remote control has received anything.
|
|
*
|
|
* TODO: Fix the repeat rate of the input device.
|
|
*/
|
|
static void dvb_usb_read_remote_control(struct work_struct *work)
|
|
{
|
|
struct dvb_usb_device *d =
|
|
container_of(work, struct dvb_usb_device, rc_query_work.work);
|
|
u32 event;
|
|
int state;
|
|
|
|
/* TODO: need a lock here. We can simply skip checking for the remote control
|
|
if we're busy. */
|
|
|
|
/* when the parameter has been set to 1 via sysfs while the driver was running */
|
|
if (dvb_usb_disable_rc_polling)
|
|
return;
|
|
|
|
if (d->props.rc_query(d,&event,&state)) {
|
|
err("error while querying for an remote control event.");
|
|
goto schedule;
|
|
}
|
|
|
|
|
|
switch (state) {
|
|
case REMOTE_NO_KEY_PRESSED:
|
|
break;
|
|
case REMOTE_KEY_PRESSED:
|
|
deb_rc("key pressed\n");
|
|
d->last_event = event;
|
|
case REMOTE_KEY_REPEAT:
|
|
deb_rc("key repeated\n");
|
|
input_event(d->rc_input_dev, EV_KEY, event, 1);
|
|
input_event(d->rc_input_dev, EV_KEY, d->last_event, 0);
|
|
input_sync(d->rc_input_dev);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
/* improved repeat handling ???
|
|
switch (state) {
|
|
case REMOTE_NO_KEY_PRESSED:
|
|
deb_rc("NO KEY PRESSED\n");
|
|
if (d->last_state != REMOTE_NO_KEY_PRESSED) {
|
|
deb_rc("releasing event %d\n",d->last_event);
|
|
input_event(d->rc_input_dev, EV_KEY, d->last_event, 0);
|
|
input_sync(d->rc_input_dev);
|
|
}
|
|
d->last_state = REMOTE_NO_KEY_PRESSED;
|
|
d->last_event = 0;
|
|
break;
|
|
case REMOTE_KEY_PRESSED:
|
|
deb_rc("KEY PRESSED\n");
|
|
deb_rc("pressing event %d\n",event);
|
|
|
|
input_event(d->rc_input_dev, EV_KEY, event, 1);
|
|
input_sync(d->rc_input_dev);
|
|
|
|
d->last_event = event;
|
|
d->last_state = REMOTE_KEY_PRESSED;
|
|
break;
|
|
case REMOTE_KEY_REPEAT:
|
|
deb_rc("KEY_REPEAT\n");
|
|
if (d->last_state != REMOTE_NO_KEY_PRESSED) {
|
|
deb_rc("repeating event %d\n",d->last_event);
|
|
input_event(d->rc_input_dev, EV_KEY, d->last_event, 2);
|
|
input_sync(d->rc_input_dev);
|
|
d->last_state = REMOTE_KEY_REPEAT;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
*/
|
|
|
|
schedule:
|
|
schedule_delayed_work(&d->rc_query_work,msecs_to_jiffies(d->props.rc_interval));
|
|
}
|
|
|
|
int dvb_usb_remote_init(struct dvb_usb_device *d)
|
|
{
|
|
struct input_dev *input_dev;
|
|
int i;
|
|
int err;
|
|
|
|
if (d->props.rc_key_map == NULL ||
|
|
d->props.rc_query == NULL ||
|
|
dvb_usb_disable_rc_polling)
|
|
return 0;
|
|
|
|
usb_make_path(d->udev, d->rc_phys, sizeof(d->rc_phys));
|
|
strlcat(d->rc_phys, "/ir0", sizeof(d->rc_phys));
|
|
|
|
input_dev = input_allocate_device();
|
|
if (!input_dev)
|
|
return -ENOMEM;
|
|
|
|
input_dev->evbit[0] = BIT_MASK(EV_KEY);
|
|
input_dev->name = "IR-receiver inside an USB DVB receiver";
|
|
input_dev->phys = d->rc_phys;
|
|
usb_to_input_id(d->udev, &input_dev->id);
|
|
input_dev->dev.parent = &d->udev->dev;
|
|
input_dev->getkeycode = dvb_usb_getkeycode;
|
|
input_dev->setkeycode = dvb_usb_setkeycode;
|
|
|
|
/* set the bits for the keys */
|
|
deb_rc("key map size: %d\n", d->props.rc_key_map_size);
|
|
for (i = 0; i < d->props.rc_key_map_size; i++) {
|
|
deb_rc("setting bit for event %d item %d\n",
|
|
d->props.rc_key_map[i].event, i);
|
|
set_bit(d->props.rc_key_map[i].event, input_dev->keybit);
|
|
}
|
|
|
|
/* Start the remote-control polling. */
|
|
if (d->props.rc_interval < 40)
|
|
d->props.rc_interval = 100; /* default */
|
|
|
|
/* setting these two values to non-zero, we have to manage key repeats */
|
|
input_dev->rep[REP_PERIOD] = d->props.rc_interval;
|
|
input_dev->rep[REP_DELAY] = d->props.rc_interval + 150;
|
|
|
|
input_set_drvdata(input_dev, d);
|
|
|
|
err = input_register_device(input_dev);
|
|
if (err) {
|
|
input_free_device(input_dev);
|
|
return err;
|
|
}
|
|
|
|
d->rc_input_dev = input_dev;
|
|
|
|
INIT_DELAYED_WORK(&d->rc_query_work, dvb_usb_read_remote_control);
|
|
|
|
info("schedule remote query interval to %d msecs.", d->props.rc_interval);
|
|
schedule_delayed_work(&d->rc_query_work,msecs_to_jiffies(d->props.rc_interval));
|
|
|
|
d->state |= DVB_USB_STATE_REMOTE;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int dvb_usb_remote_exit(struct dvb_usb_device *d)
|
|
{
|
|
if (d->state & DVB_USB_STATE_REMOTE) {
|
|
cancel_rearming_delayed_work(&d->rc_query_work);
|
|
flush_scheduled_work();
|
|
input_unregister_device(d->rc_input_dev);
|
|
}
|
|
d->state &= ~DVB_USB_STATE_REMOTE;
|
|
return 0;
|
|
}
|
|
|
|
#define DVB_USB_RC_NEC_EMPTY 0x00
|
|
#define DVB_USB_RC_NEC_KEY_PRESSED 0x01
|
|
#define DVB_USB_RC_NEC_KEY_REPEATED 0x02
|
|
int dvb_usb_nec_rc_key_to_event(struct dvb_usb_device *d,
|
|
u8 keybuf[5], u32 *event, int *state)
|
|
{
|
|
int i;
|
|
struct dvb_usb_rc_key *keymap = d->props.rc_key_map;
|
|
*event = 0;
|
|
*state = REMOTE_NO_KEY_PRESSED;
|
|
switch (keybuf[0]) {
|
|
case DVB_USB_RC_NEC_EMPTY:
|
|
break;
|
|
case DVB_USB_RC_NEC_KEY_PRESSED:
|
|
if ((u8) ~keybuf[1] != keybuf[2] ||
|
|
(u8) ~keybuf[3] != keybuf[4]) {
|
|
deb_err("remote control checksum failed.\n");
|
|
break;
|
|
}
|
|
/* See if we can match the raw key code. */
|
|
for (i = 0; i < d->props.rc_key_map_size; i++)
|
|
if (rc5_custom(&keymap[i]) == keybuf[1] &&
|
|
rc5_data(&keymap[i]) == keybuf[3]) {
|
|
*event = keymap[i].event;
|
|
*state = REMOTE_KEY_PRESSED;
|
|
return 0;
|
|
}
|
|
deb_err("key mapping failed - no appropriate key found in keymapping\n");
|
|
break;
|
|
case DVB_USB_RC_NEC_KEY_REPEATED:
|
|
*state = REMOTE_KEY_REPEAT;
|
|
break;
|
|
default:
|
|
deb_err("unknown type of remote status: %d\n",keybuf[0]);
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(dvb_usb_nec_rc_key_to_event);
|