mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-26 10:49:33 +00:00
![Linus Torvalds](/assets/img/avatar_default.png)
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (442 commits) [media] videobuf2-dma-contig: make cookie() return a pointer to dma_addr_t [media] sh_mobile_ceu_camera: Do not call vb2's mem_ops directly [media] V4L: soc-camera: explicitly require V4L2_BUF_TYPE_VIDEO_CAPTURE [media] v4l: soc-camera: Store negotiated buffer settings [media] rc: interim support for 32-bit NEC-ish scancodes [media] mceusb: topseed 0x0011 needs gen3 init for tx to work [media] lirc_zilog: error out if buffer read bytes != chunk size [media] lirc: silence some compile warnings [media] hdpvr: use same polling interval as other OS [media] ir-kbd-i2c: pass device code w/key in hauppauge case [media] rc/keymaps: Remove the obsolete rc-rc5-tv keymap [media] remove the old RC_MAP_HAUPPAUGE_NEW RC map [media] rc/keymaps: Rename Hauppauge table as rc-hauppauge [media] rc-rc5-hauppauge-new: Fix Hauppauge Grey mapping [media] rc-rc5-hauppauge-new: Add support for the old Black RC [media] rc-rc5-hauppauge-new: Add the old control to the table [media] rc-winfast: Fix the keycode tables [media] a800: Fix a few wrong IR key assignments [media] opera1: Use multimedia keys instead of an app-specific mapping [media] dw2102: Use multimedia keys instead of an app-specific mapping ... Fix up trivial conflicts (remove/modify and some real conflicts) in: arch/arm/mach-omap2/devices.c drivers/staging/Kconfig drivers/staging/Makefile drivers/staging/dabusb/dabusb.c drivers/staging/dabusb/dabusb.h drivers/staging/easycap/easycap_ioctl.c drivers/staging/usbvideo/usbvideo.c drivers/staging/usbvideo/vicam.c
391 lines
11 KiB
C
391 lines
11 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 unsigned int
|
|
legacy_dvb_usb_get_keymap_index(const struct input_keymap_entry *ke,
|
|
struct rc_map_table *keymap,
|
|
unsigned int keymap_size)
|
|
{
|
|
unsigned int index;
|
|
unsigned int scancode;
|
|
|
|
if (ke->flags & INPUT_KEYMAP_BY_INDEX) {
|
|
index = ke->index;
|
|
} else {
|
|
if (input_scancode_to_scalar(ke, &scancode))
|
|
return keymap_size;
|
|
|
|
/* See if we can match the raw key code. */
|
|
for (index = 0; index < keymap_size; index++)
|
|
if (keymap[index].scancode == scancode)
|
|
break;
|
|
|
|
/* See if there is an unused hole in the map */
|
|
if (index >= keymap_size) {
|
|
for (index = 0; index < keymap_size; index++) {
|
|
if (keymap[index].keycode == KEY_RESERVED ||
|
|
keymap[index].keycode == KEY_UNKNOWN) {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return index;
|
|
}
|
|
|
|
static int legacy_dvb_usb_getkeycode(struct input_dev *dev,
|
|
struct input_keymap_entry *ke)
|
|
{
|
|
struct dvb_usb_device *d = input_get_drvdata(dev);
|
|
struct rc_map_table *keymap = d->props.rc.legacy.rc_map_table;
|
|
unsigned int keymap_size = d->props.rc.legacy.rc_map_size;
|
|
unsigned int index;
|
|
|
|
index = legacy_dvb_usb_get_keymap_index(ke, keymap, keymap_size);
|
|
if (index >= keymap_size)
|
|
return -EINVAL;
|
|
|
|
ke->keycode = keymap[index].keycode;
|
|
if (ke->keycode == KEY_UNKNOWN)
|
|
ke->keycode = KEY_RESERVED;
|
|
ke->len = sizeof(keymap[index].scancode);
|
|
memcpy(&ke->scancode, &keymap[index].scancode, ke->len);
|
|
ke->index = index;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int legacy_dvb_usb_setkeycode(struct input_dev *dev,
|
|
const struct input_keymap_entry *ke,
|
|
unsigned int *old_keycode)
|
|
{
|
|
struct dvb_usb_device *d = input_get_drvdata(dev);
|
|
struct rc_map_table *keymap = d->props.rc.legacy.rc_map_table;
|
|
unsigned int keymap_size = d->props.rc.legacy.rc_map_size;
|
|
unsigned int index;
|
|
|
|
index = legacy_dvb_usb_get_keymap_index(ke, keymap, keymap_size);
|
|
/*
|
|
* 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
|
|
*/
|
|
if (index >= keymap_size)
|
|
return -EINVAL;
|
|
|
|
*old_keycode = keymap[index].keycode;
|
|
keymap->keycode = ke->keycode;
|
|
__set_bit(ke->keycode, dev->keybit);
|
|
|
|
if (*old_keycode != KEY_RESERVED) {
|
|
__clear_bit(*old_keycode, dev->keybit);
|
|
for (index = 0; index < keymap_size; index++) {
|
|
if (keymap[index].keycode == *old_keycode) {
|
|
__set_bit(*old_keycode, dev->keybit);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* 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 legacy_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.legacy.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->input_dev, EV_KEY, event, 1);
|
|
input_sync(d->input_dev);
|
|
input_event(d->input_dev, EV_KEY, d->last_event, 0);
|
|
input_sync(d->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.legacy.rc_interval));
|
|
}
|
|
|
|
static int legacy_dvb_usb_remote_init(struct dvb_usb_device *d)
|
|
{
|
|
int i, err, rc_interval;
|
|
struct input_dev *input_dev;
|
|
|
|
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;
|
|
d->input_dev = input_dev;
|
|
d->rc_dev = NULL;
|
|
|
|
input_dev->getkeycode = legacy_dvb_usb_getkeycode;
|
|
input_dev->setkeycode = legacy_dvb_usb_setkeycode;
|
|
|
|
/* set the bits for the keys */
|
|
deb_rc("key map size: %d\n", d->props.rc.legacy.rc_map_size);
|
|
for (i = 0; i < d->props.rc.legacy.rc_map_size; i++) {
|
|
deb_rc("setting bit for event %d item %d\n",
|
|
d->props.rc.legacy.rc_map_table[i].keycode, i);
|
|
set_bit(d->props.rc.legacy.rc_map_table[i].keycode, input_dev->keybit);
|
|
}
|
|
|
|
/* setting these two values to non-zero, we have to manage key repeats */
|
|
input_dev->rep[REP_PERIOD] = d->props.rc.legacy.rc_interval;
|
|
input_dev->rep[REP_DELAY] = d->props.rc.legacy.rc_interval + 150;
|
|
|
|
input_set_drvdata(input_dev, d);
|
|
|
|
err = input_register_device(input_dev);
|
|
if (err)
|
|
input_free_device(input_dev);
|
|
|
|
rc_interval = d->props.rc.legacy.rc_interval;
|
|
|
|
INIT_DELAYED_WORK(&d->rc_query_work, legacy_dvb_usb_read_remote_control);
|
|
|
|
info("schedule remote query interval to %d msecs.", rc_interval);
|
|
schedule_delayed_work(&d->rc_query_work,
|
|
msecs_to_jiffies(rc_interval));
|
|
|
|
d->state |= DVB_USB_STATE_REMOTE;
|
|
|
|
return err;
|
|
}
|
|
|
|
/* 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);
|
|
int err;
|
|
|
|
/* 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, or when bulk mode is enabled after IR init
|
|
*/
|
|
if (dvb_usb_disable_rc_polling || d->props.rc.core.bulk_mode)
|
|
return;
|
|
|
|
err = d->props.rc.core.rc_query(d);
|
|
if (err)
|
|
err("error %d while querying for an remote control event.", err);
|
|
|
|
schedule_delayed_work(&d->rc_query_work,
|
|
msecs_to_jiffies(d->props.rc.core.rc_interval));
|
|
}
|
|
|
|
static int rc_core_dvb_usb_remote_init(struct dvb_usb_device *d)
|
|
{
|
|
int err, rc_interval;
|
|
struct rc_dev *dev;
|
|
|
|
dev = rc_allocate_device();
|
|
if (!dev)
|
|
return -ENOMEM;
|
|
|
|
dev->driver_name = d->props.rc.core.module_name;
|
|
dev->map_name = d->props.rc.core.rc_codes;
|
|
dev->change_protocol = d->props.rc.core.change_protocol;
|
|
dev->allowed_protos = d->props.rc.core.allowed_protos;
|
|
dev->driver_type = d->props.rc.core.driver_type;
|
|
usb_to_input_id(d->udev, &dev->input_id);
|
|
dev->input_name = "IR-receiver inside an USB DVB receiver";
|
|
dev->input_phys = d->rc_phys;
|
|
dev->dev.parent = &d->udev->dev;
|
|
dev->priv = d;
|
|
|
|
err = rc_register_device(dev);
|
|
if (err < 0) {
|
|
rc_free_device(dev);
|
|
return err;
|
|
}
|
|
|
|
d->input_dev = NULL;
|
|
d->rc_dev = dev;
|
|
|
|
if (!d->props.rc.core.rc_query || d->props.rc.core.bulk_mode)
|
|
return 0;
|
|
|
|
/* Polling mode - initialize a work queue for handling it */
|
|
INIT_DELAYED_WORK(&d->rc_query_work, dvb_usb_read_remote_control);
|
|
|
|
rc_interval = d->props.rc.core.rc_interval;
|
|
|
|
info("schedule remote query interval to %d msecs.", rc_interval);
|
|
schedule_delayed_work(&d->rc_query_work,
|
|
msecs_to_jiffies(rc_interval));
|
|
|
|
return 0;
|
|
}
|
|
|
|
int dvb_usb_remote_init(struct dvb_usb_device *d)
|
|
{
|
|
int err;
|
|
|
|
if (dvb_usb_disable_rc_polling)
|
|
return 0;
|
|
|
|
if (d->props.rc.legacy.rc_map_table && d->props.rc.legacy.rc_query)
|
|
d->props.rc.mode = DVB_RC_LEGACY;
|
|
else if (d->props.rc.core.rc_codes)
|
|
d->props.rc.mode = DVB_RC_CORE;
|
|
else
|
|
return 0;
|
|
|
|
usb_make_path(d->udev, d->rc_phys, sizeof(d->rc_phys));
|
|
strlcat(d->rc_phys, "/ir0", sizeof(d->rc_phys));
|
|
|
|
/* Start the remote-control polling. */
|
|
if (d->props.rc.legacy.rc_interval < 40)
|
|
d->props.rc.legacy.rc_interval = 100; /* default */
|
|
|
|
if (d->props.rc.mode == DVB_RC_LEGACY)
|
|
err = legacy_dvb_usb_remote_init(d);
|
|
else
|
|
err = rc_core_dvb_usb_remote_init(d);
|
|
if (err)
|
|
return err;
|
|
|
|
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_delayed_work_sync(&d->rc_query_work);
|
|
if (d->props.rc.mode == DVB_RC_LEGACY)
|
|
input_unregister_device(d->input_dev);
|
|
else
|
|
rc_unregister_device(d->rc_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 rc_map_table *keymap = d->props.rc.legacy.rc_map_table;
|
|
*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.legacy.rc_map_size; i++)
|
|
if (rc5_custom(&keymap[i]) == keybuf[1] &&
|
|
rc5_data(&keymap[i]) == keybuf[3]) {
|
|
*event = keymap[i].keycode;
|
|
*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);
|