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V4L/DVB (9108): cinergyT2: add remote key repeat feature

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Implement key repeat feature for the cinergyT2 remote controller.

Signed-off-by: Thierry MERLE <thierry.merle@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Thierry MERLE 2008-09-19 00:24:51 -03:00 committed by Mauro Carvalho Chehab
parent 986bd1e58b
commit 7f98767852
1 changed files with 45 additions and 7 deletions

52
drivers/media/dvb/dvb-usb/cinergyT2-core.c
View File

@ -40,6 +40,9 @@ MODULE_PARM_DESC(debug, "set debugging level (1=info, xfer=2, rc=4 "
DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
struct cinergyt2_state {
u8 rc_counter;
};
/* We are missing a release hook with usb_device data */ /* We are missing a release hook with usb_device data */
struct dvb_usb_device *cinergyt2_usb_device; struct dvb_usb_device *cinergyt2_usb_device;
@ -122,22 +125,57 @@ static struct dvb_usb_rc_key cinergyt2_rc_keys[] = {
{ 0x04, 0x5c, KEY_NEXT } { 0x04, 0x5c, KEY_NEXT }
}; };
/* Number of keypresses to ignore before detect repeating */
#define RC_REPEAT_DELAY 3
static int repeatable_keys[] = {
KEY_UP,
KEY_DOWN,
KEY_LEFT,
KEY_RIGHT,
KEY_VOLUMEUP,
KEY_VOLUMEDOWN,
KEY_CHANNELUP,
KEY_CHANNELDOWN
};
static int cinergyt2_rc_query(struct dvb_usb_device *d, u32 *event, int *state) static int cinergyt2_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
{ {
struct cinergyt2_state *st = d->priv;
u8 key[5] = {0, 0, 0, 0, 0}, cmd = CINERGYT2_EP1_GET_RC_EVENTS; u8 key[5] = {0, 0, 0, 0, 0}, cmd = CINERGYT2_EP1_GET_RC_EVENTS;
int i;
*state = REMOTE_NO_KEY_PRESSED; *state = REMOTE_NO_KEY_PRESSED;
dvb_usb_generic_rw(d, &cmd, 1, key, sizeof(key), 0); dvb_usb_generic_rw(d, &cmd, 1, key, sizeof(key), 0);
if (key[4] == 0xff) if (key[4] == 0xff) {
/* key repeat */
st->rc_counter++;
if (st->rc_counter > RC_REPEAT_DELAY) {
for (i = 0; i < ARRAY_SIZE(repeatable_keys); i++) {
if (d->last_event == repeatable_keys[i]) {
*state = REMOTE_KEY_REPEAT;
*event = d->last_event;
deb_rc("repeat key, event %x\n",
*event);
return 0;
}
}
deb_rc("repeated key (non repeatable)\n");
}
return 0; return 0;
}
/* hack to pass checksum on the custom field (is set to 0xeb) */ /* hack to pass checksum on the custom field */
key[2] = ~0x04; key[2] = ~key[1];
dvb_usb_nec_rc_key_to_event(d, key, event, state); dvb_usb_nec_rc_key_to_event(d, key, event, state);
if (key[0] != 0) if (key[0] != 0) {
deb_info("key: %x %x %x %x %x\n", if (*event != d->last_event)
key[0], key[1], key[2], key[3], key[4]); st->rc_counter = 0;
deb_rc("key: %x %x %x %x %x\n",
key[0], key[1], key[2], key[3], key[4]);
}
return 0; return 0;
} }
@ -157,7 +195,7 @@ static struct usb_device_id cinergyt2_usb_table[] = {
MODULE_DEVICE_TABLE(usb, cinergyt2_usb_table); MODULE_DEVICE_TABLE(usb, cinergyt2_usb_table);
static struct dvb_usb_device_properties cinergyt2_properties = { static struct dvb_usb_device_properties cinergyt2_properties = {
.size_of_priv = sizeof(struct cinergyt2_state),
.num_adapters = 1, .num_adapters = 1,
.adapter = { .adapter = {
{ {