diff options
Diffstat (limited to 'drivers/media/platform/vivid/vivid-cec.c')
-rw-r--r-- | drivers/media/platform/vivid/vivid-cec.c | 33 |
1 files changed, 14 insertions, 19 deletions
diff --git a/drivers/media/platform/vivid/vivid-cec.c b/drivers/media/platform/vivid/vivid-cec.c index b55d278d38a7..71105fa4c5f9 100644 --- a/drivers/media/platform/vivid/vivid-cec.c +++ b/drivers/media/platform/vivid/vivid-cec.c @@ -1,20 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * vivid-cec.c - A Virtual Video Test Driver, cec emulation * * Copyright 2016 Cisco Systems, Inc. and/or its affiliates. All rights reserved. - * - * This program is free software; you may redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS - * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN - * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. */ #include <media/cec.h> @@ -82,11 +70,18 @@ static void vivid_cec_pin_adap_events(struct cec_adapter *adap, ktime_t ts, if (adap == NULL) return; - ts = ktime_sub_us(ts, (CEC_TIM_START_BIT_TOTAL + - len * 10 * CEC_TIM_DATA_BIT_TOTAL)); - cec_queue_pin_cec_event(adap, false, ts); + + /* + * Suffix ULL on constant 10 makes the expression + * CEC_TIM_START_BIT_TOTAL + 10ULL * len * CEC_TIM_DATA_BIT_TOTAL + * to be evaluated using 64-bit unsigned arithmetic (u64), which + * is what ktime_sub_us expects as second argument. + */ + ts = ktime_sub_us(ts, CEC_TIM_START_BIT_TOTAL + + 10ULL * len * CEC_TIM_DATA_BIT_TOTAL); + cec_queue_pin_cec_event(adap, false, false, ts); ts = ktime_add_us(ts, CEC_TIM_START_BIT_LOW); - cec_queue_pin_cec_event(adap, true, ts); + cec_queue_pin_cec_event(adap, true, false, ts); ts = ktime_add_us(ts, CEC_TIM_START_BIT_HIGH); for (i = 0; i < 10 * len; i++) { @@ -101,12 +96,12 @@ static void vivid_cec_pin_adap_events(struct cec_adapter *adap, ktime_t ts, bit = cec_msg_is_broadcast(msg) ^ nacked; break; } - cec_queue_pin_cec_event(adap, false, ts); + cec_queue_pin_cec_event(adap, false, false, ts); if (bit) ts = ktime_add_us(ts, CEC_TIM_DATA_BIT_1_LOW); else ts = ktime_add_us(ts, CEC_TIM_DATA_BIT_0_LOW); - cec_queue_pin_cec_event(adap, true, ts); + cec_queue_pin_cec_event(adap, true, false, ts); if (bit) ts = ktime_add_us(ts, CEC_TIM_DATA_BIT_1_HIGH); else |