diff options
| author | Sean Young <sean@mess.org> | 2017-12-11 17:21:28 -0500 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2017-12-18 15:20:53 -0500 |
| commit | b996157dd2b9de57a61a6abbe4ab2d63e1d10908 (patch) | |
| tree | 7c9896ba0562a30290af417ce6b377fe52c2524f /drivers/media/rc | |
| parent | dde7edff359461d07074ef2f0c4dc85b775d493f (diff) | |
media: rc: iguanair: simplify tx loop
The TX loop is more complex than it should. Simplify it.
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/media/rc')
| -rw-r--r-- | drivers/media/rc/iguanair.c | 19 |
1 files changed, 8 insertions, 11 deletions
diff --git a/drivers/media/rc/iguanair.c b/drivers/media/rc/iguanair.c index 30e24da67226..7daac8bab83b 100644 --- a/drivers/media/rc/iguanair.c +++ b/drivers/media/rc/iguanair.c @@ -347,26 +347,23 @@ static int iguanair_set_tx_mask(struct rc_dev *dev, uint32_t mask) static int iguanair_tx(struct rc_dev *dev, unsigned *txbuf, unsigned count) { struct iguanair *ir = dev->priv; - uint8_t space; - unsigned i, size, periods, bytes; + unsigned int i, size, p, periods; int rc; mutex_lock(&ir->lock); /* convert from us to carrier periods */ - for (i = space = size = 0; i < count; i++) { + for (i = size = 0; i < count; i++) { periods = DIV_ROUND_CLOSEST(txbuf[i] * ir->carrier, 1000000); - bytes = DIV_ROUND_UP(periods, 127); - if (size + bytes > ir->bufsize) { - rc = -EINVAL; - goto out; - } while (periods) { - unsigned p = min(periods, 127u); - ir->packet->payload[size++] = p | space; + p = min(periods, 127u); + if (size >= ir->bufsize) { + rc = -EINVAL; + goto out; + } + ir->packet->payload[size++] = p | ((i & 1) ? 0x80 : 0); periods -= p; } - space ^= 0x80; } ir->packet->header.start = 0; |