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[media] m920x: introduce m920x_rc_core_query()

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Add an m920x_rc_core_query() function for drivers which want to use the
linux RC core infrastructure.

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 17:37:14 -03:00 committed by Mauro Carvalho Chehab
parent 7a7ef4657e
commit b677757cef
1 changed files with 32 additions and 0 deletions
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32
drivers/media/usb/dvb-usb/m920x.c
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@ -215,6 +215,38 @@ static int m920x_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
return ret;
}
static int m920x_rc_core_query(struct dvb_usb_device *d)
{
int ret = 0;
u8 *rc_state;
int state;
rc_state = kmalloc(2, GFP_KERNEL);
if (!rc_state)
return -ENOMEM;
if ((ret = m920x_read(d->udev, M9206_CORE, 0x0, M9206_RC_STATE, &rc_state[0], 1)) != 0)
goto out;
if ((ret = m920x_read(d->udev, M9206_CORE, 0x0, M9206_RC_KEY, &rc_state[1], 1)) != 0)
goto out;
deb("state=0x%02x keycode=0x%02x\n", rc_state[0], rc_state[1]);
m920x_parse_rc_state(d, rc_state[0], &state);
if (state == REMOTE_NO_KEY_PRESSED)
rc_keyup(d->rc_dev);
else if (state == REMOTE_KEY_REPEAT)
rc_repeat(d->rc_dev);
else
rc_keydown(d->rc_dev, rc_state[1], 0);
out:
kfree(rc_state);
return ret;
}
/* I2C */
static int m920x_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], int num)
{