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Input: dvb-usb-remote - convert to new style of get/setkeycode

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Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Dmitry Torokhov 2011-01-31 21:06:39 -08:00
parent a1f3d4bba8
commit f06e6a52ca
1 changed files with 70 additions and 43 deletions
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113
drivers/media/dvb/dvb-usb/dvb-usb-remote.c
View file

@ -8,60 +8,71 @@
#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,
unsigned int scancode, unsigned int *keycode)
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;
int i;
unsigned int keymap_size = d->props.rc.legacy.rc_map_size;
unsigned int index;
/* See if we can match the raw key code. */
for (i = 0; i < d->props.rc.legacy.rc_map_size; i++)
if (keymap[i].scancode == scancode) {
*keycode = keymap[i].keycode;
return 0;
}
index = legacy_dvb_usb_get_keymap_index(ke, keymap, keymap_size);
if (index >= keymap_size)
return -EINVAL;
/*
* If is there extra space, returns KEY_RESERVED,
* otherwise, input core won't let legacy_dvb_usb_setkeycode
* to work
*/
for (i = 0; i < d->props.rc.legacy.rc_map_size; i++)
if (keymap[i].keycode == KEY_RESERVED ||
keymap[i].keycode == KEY_UNKNOWN) {
*keycode = KEY_RESERVED;
return 0;
}
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 -EINVAL;
return 0;
}
static int legacy_dvb_usb_setkeycode(struct input_dev *dev,
unsigned int scancode, unsigned int keycode)
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;
int i;
/* Search if it is replacing an existing keycode */
for (i = 0; i < d->props.rc.legacy.rc_map_size; i++)
if (keymap[i].scancode == scancode) {
keymap[i].keycode = keycode;
return 0;
}
/* Search if is there a clean entry. If so, use it */
for (i = 0; i < d->props.rc.legacy.rc_map_size; i++)
if (keymap[i].keycode == KEY_RESERVED ||
keymap[i].keycode == KEY_UNKNOWN) {
keymap[i].scancode = scancode;
keymap[i].keycode = keycode;
return 0;
}
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
@ -69,8 +80,24 @@ static int legacy_dvb_usb_setkeycode(struct input_dev *dev,
* 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;
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
@ -171,8 +198,8 @@ static int legacy_dvb_usb_remote_init(struct dvb_usb_device *d)
d->input_dev = input_dev;
d->rc_dev = NULL;
input_dev->getkeycode = legacy_dvb_usb_getkeycode;
input_dev->setkeycode = legacy_dvb_usb_setkeycode;
input_dev->getkeycode_new = legacy_dvb_usb_getkeycode;
input_dev->setkeycode_new = legacy_dvb_usb_setkeycode;
/* set the bits for the keys */
deb_rc("key map size: %d\n", d->props.rc.legacy.rc_map_size);