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driver: video: esp32: add video_flush() callback

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Adding missing `video_flush()` callback to driver.

Signed-off-by: Armin Kessler <ake@espros.com>
This commit is contained in:
Armin Kessler 2025-03-11 09:46:08 +01:00 • committed by Benjamin Cabé
commit 4bb5ffd786
1 changed files with 31 additions and 1 deletions
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32
drivers/video/video_esp32_dvp.c
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@ -339,6 +339,36 @@ static int video_esp32_get_ctrl(const struct device *dev, unsigned int cid, void
return video_get_ctrl(cfg->source_dev, cid, value);
}
static int video_esp32_flush(const struct device *dev, enum video_endpoint_id ep, bool cancel)
{
struct video_esp32_data *data = dev->data;
struct video_buffer *vbuf = NULL;
if (cancel) {
if (data->is_streaming) {
video_esp32_set_stream(dev, false);
}
if (data->active_vbuf) {
k_fifo_put(&data->fifo_out, data->active_vbuf);
data->active_vbuf = NULL;
}
while ((vbuf = k_fifo_get(&data->fifo_in, K_NO_WAIT)) != NULL) {
k_fifo_put(&data->fifo_out, vbuf);
#ifdef CONFIG_POLL
if (data->signal_out) {
k_poll_signal_raise(data->signal_out, VIDEO_BUF_ABORTED);
}
#endif
}
} else {
while (!k_fifo_is_empty(&data->fifo_in)) {
k_sleep(K_MSEC(1));
}
}
return 0;
}
#ifdef CONFIG_POLL
int video_esp32_set_signal(const struct device *dev, enum video_endpoint_id ep,
struct k_poll_signal *sig)
@ -401,7 +431,7 @@ static DEVICE_API(video, esp32_driver_api) = {
/* optional callbacks */
.enqueue = video_esp32_enqueue,
.dequeue = video_esp32_dequeue,
.flush = NULL,
.flush = video_esp32_flush,
.set_ctrl = video_esp32_set_ctrl,
.get_ctrl = video_esp32_get_ctrl,
#ifdef CONFIG_POLL