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[media] m920x: factor out a m920x_parse_rc_state() function 

This is in preparation to using RC core infrastructure for some devices,
the RC button state parsing logic can be shared berween rc.legacy and
rc.core callbacks as it is independent from the mechanism used for RC
handling.

Signed-off-by: Antonio Ospite <ospite@studenti.unina.it>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Antonio Ospite 2012-12-10 17:37:12 -03:00 committed by Mauro Carvalho Chehab
parent 7543f344e9
commit f526e9e1dc
1 changed files with 44 additions and 37 deletions
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81
drivers/media/usb/dvb-usb/m920x.c
View File

@ -140,9 +140,50 @@ static int m920x_init_ep(struct usb_interface *intf)
alt->desc.bAlternateSetting);
}
static int m920x_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
static inline void m920x_parse_rc_state(struct dvb_usb_device *d, u8 rc_state,
int *state)
{
struct m920x_state *m = d->priv;
switch (rc_state) {
case 0x80:
*state = REMOTE_NO_KEY_PRESSED;
break;
case 0x88: /* framing error or "invalid code" */
case 0x99:
case 0xc0:
case 0xd8:
*state = REMOTE_NO_KEY_PRESSED;
m->rep_count = 0;
break;
case 0x93:
case 0x92:
case 0x83: /* pinnacle PCTV310e */
case 0x82:
m->rep_count = 0;
*state = REMOTE_KEY_PRESSED;
break;
case 0x91:
case 0x81: /* pinnacle PCTV310e */
/* prevent immediate auto-repeat */
if (++m->rep_count > 2)
*state = REMOTE_KEY_REPEAT;
else
*state = REMOTE_NO_KEY_PRESSED;
break;
default:
deb("Unexpected rc state %02x\n", rc_state);
*state = REMOTE_NO_KEY_PRESSED;
break;
}
}
static int m920x_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
{
int i, ret = 0;
u8 *rc_state;
@ -159,42 +200,8 @@ static int m920x_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
for (i = 0; i < d->props.rc.legacy.rc_map_size; i++)
if (rc5_data(&d->props.rc.legacy.rc_map_table[i]) == rc_state[1]) {
*event = d->props.rc.legacy.rc_map_table[i].keycode;
switch(rc_state[0]) {
case 0x80:
*state = REMOTE_NO_KEY_PRESSED;
goto out;
case 0x88: /* framing error or "invalid code" */
case 0x99:
case 0xc0:
case 0xd8:
*state = REMOTE_NO_KEY_PRESSED;
m->rep_count = 0;
goto out;
case 0x93:
case 0x92:
case 0x83: /* pinnacle PCTV310e */
case 0x82:
m->rep_count = 0;
*state = REMOTE_KEY_PRESSED;
goto out;
case 0x91:
case 0x81: /* pinnacle PCTV310e */
/* prevent immediate auto-repeat */
if (++m->rep_count > 2)
*state = REMOTE_KEY_REPEAT;
else
*state = REMOTE_NO_KEY_PRESSED;
goto out;
default:
deb("Unexpected rc state %02x\n", rc_state[0]);
*state = REMOTE_NO_KEY_PRESSED;
goto out;
}
m920x_parse_rc_state(d, rc_state[0], state);
goto out;
}
if (rc_state[1] != 0)