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[media] rc-core: lirc use unsigned int

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Durations can never be negative, so it makes sense to consistently use
unsigned int for LIRC transmission. Contrary to the initial impression,
this shouldn't actually change the userspace API.

Signed-off-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
David Härdeman
2011-04-28 12:13:58 -03:00
committed by Mauro Carvalho Chehab
parent 8a8cc952d3
commit 5588dc2b02
9 changed files with 25 additions and 44 deletions
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12
drivers/media/rc/nuvoton-cir.c
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@@ -546,24 +546,18 @@ static int nvt_set_tx_carrier(struct rc_dev *dev, u32 carrier)
* number may larger than TXFCONT (0xff). So in interrupt_handler, it has to
* set TXFCONT as 0xff, until buf_count less than 0xff.
*/
static int nvt_tx_ir(struct rc_dev *dev, int *txbuf, u32 n)
static int nvt_tx_ir(struct rc_dev *dev, unsigned *txbuf, unsigned n)
{
struct nvt_dev *nvt = dev->priv;
unsigned long flags;
size_t cur_count;
unsigned int i;
u8 iren;
int ret;
spin_lock_irqsave(&nvt->tx.lock, flags);
if (n >= TX_BUF_LEN) {
nvt->tx.buf_count = cur_count = TX_BUF_LEN;
ret = TX_BUF_LEN;
} else {
nvt->tx.buf_count = cur_count = n;
ret = n;
}
ret = min((unsigned)(TX_BUF_LEN / sizeof(unsigned)), n);
nvt->tx.buf_count = (ret * sizeof(unsigned));
memcpy(nvt->tx.buf, txbuf, nvt->tx.buf_count);