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authorSean Young <sean@mess.org>2018-04-08 18:06:49 +0300
committerMauro Carvalho Chehab <mchehab@s-opensource.com>2018-04-20 16:22:14 +0300
commit877f1a7cee3f5dd7a08bdabb52948f155c8f267e (patch)
tree6cc64e2c8ef3d740f3493a1d99ba0a70bf6927e0 /drivers
parent91352b572786a49f26a12e8b1b7571bc3df64bab (diff)
downloadlinux-877f1a7cee3f5dd7a08bdabb52948f155c8f267e.tar.xz
media: rc: mceusb: allow the timeout to be configurable
mceusb devices have a default timeout of 100ms, but this can be changed. Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/media/rc/mceusb.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/media/rc/mceusb.c b/drivers/media/rc/mceusb.c
index a1c21903b96c..5c0bf61fae26 100644
--- a/drivers/media/rc/mceusb.c
+++ b/drivers/media/rc/mceusb.c
@@ -982,6 +982,25 @@ static int mceusb_set_tx_carrier(struct rc_dev *dev, u32 carrier)
return 0;
}
+static int mceusb_set_timeout(struct rc_dev *dev, unsigned int timeout)
+{
+ u8 cmdbuf[4] = { MCE_CMD_PORT_IR, MCE_CMD_SETIRTIMEOUT, 0, 0 };
+ struct mceusb_dev *ir = dev->priv;
+ unsigned int units;
+
+ units = DIV_ROUND_CLOSEST(timeout, US_TO_NS(MCE_TIME_UNIT));
+
+ cmdbuf[2] = units >> 8;
+ cmdbuf[3] = units;
+
+ mce_async_out(ir, cmdbuf, sizeof(cmdbuf));
+
+ /* get receiver timeout value */
+ mce_async_out(ir, GET_RX_TIMEOUT, sizeof(GET_RX_TIMEOUT));
+
+ return 0;
+}
+
/*
* Select or deselect the 2nd receiver port.
* Second receiver is learning mode, wide-band, short-range receiver.
@@ -1420,7 +1439,10 @@ static struct rc_dev *mceusb_init_rc_dev(struct mceusb_dev *ir)
rc->dev.parent = dev;
rc->priv = ir;
rc->allowed_protocols = RC_PROTO_BIT_ALL_IR_DECODER;
+ rc->min_timeout = US_TO_NS(MCE_TIME_UNIT);
rc->timeout = MS_TO_NS(100);
+ rc->max_timeout = 10 * IR_DEFAULT_TIMEOUT;
+ rc->s_timeout = mceusb_set_timeout;
if (!ir->flags.no_tx) {
rc->s_tx_mask = mceusb_set_tx_mask;
rc->s_tx_carrier = mceusb_set_tx_carrier;