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media: mceusb: MCE_CMD_SETIRTIMEOUT cause strange behaviour on device 

If the IR timeout is set on vid 1784 pid 0011, the device starts
behaving strangely.

Reported-by: Matthias Reichl <hias@horus.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Sean Young 2018-05-09 06:11:28 -04:00 committed by Mauro Carvalho Chehab
parent 09c2cc98cd
commit aec3eadfb6
1 changed files with 19 additions and 3 deletions
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20
drivers/media/rc/mceusb.c
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@ -181,6 +181,7 @@ enum mceusb_model_type {
MCE_GEN2 = 0, /* Most boards */
MCE_GEN1,
MCE_GEN3,
MCE_GEN3_BROKEN_IRTIMEOUT,
MCE_GEN2_TX_INV,
MCE_GEN2_TX_INV_RX_GOOD,
POLARIS_EVK,
@ -199,6 +200,7 @@ struct mceusb_model {
u32 mce_gen3:1;
u32 tx_mask_normal:1;
u32 no_tx:1;
u32 broken_irtimeout:1;
/*
* 2nd IR receiver (short-range, wideband) for learning mode:
* 0, absent 2nd receiver (rx2)
@ -242,6 +244,12 @@ static const struct mceusb_model mceusb_model[] = {
.tx_mask_normal = 1,
.rx2 = 2,
},
[MCE_GEN3_BROKEN_IRTIMEOUT] = {
.mce_gen3 = 1,
.tx_mask_normal = 1,
.rx2 = 2,
.broken_irtimeout = 1
},
[POLARIS_EVK] = {
/*
* In fact, the EVK is shipped without
@ -352,7 +360,7 @@ static const struct usb_device_id mceusb_dev_table[] = {
.driver_info = MCE_GEN2_TX_INV },
/* Topseed eHome Infrared Transceiver */
{ USB_DEVICE(VENDOR_TOPSEED, 0x0011),
.driver_info = MCE_GEN3 },
.driver_info = MCE_GEN3_BROKEN_IRTIMEOUT },
/* Ricavision internal Infrared Transceiver */
{ USB_DEVICE(VENDOR_RICAVISION, 0x0010) },
/* Itron ione Libra Q-11 */
@ -1441,8 +1449,16 @@ static struct rc_dev *mceusb_init_rc_dev(struct mceusb_dev *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;
if (!mceusb_model[ir->model].broken_irtimeout) {
rc->s_timeout = mceusb_set_timeout;
rc->max_timeout = 10 * IR_DEFAULT_TIMEOUT;
} else {
/*
* If we can't set the timeout using CMD_SETIRTIMEOUT, we can
* rely on software timeouts for timeouts < 100ms.
*/
rc->max_timeout = rc->timeout;
}
if (!ir->flags.no_tx) {
rc->s_tx_mask = mceusb_set_tx_mask;
rc->s_tx_carrier = mceusb_set_tx_carrier;