samples: video: capture: add support for SMARTDMA

Add support for using the SMARTDMA engine on the FRDM-MCXN947 board with the video capture sample. Signed-off-by: Daniel DeGrasse <[email protected]>
zephyrproject-rtos · Jun 3, 2024 · 5028998 · 5028998
1 parent df9aa23
commit 5028998
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diff --git a/samples/subsys/video/capture/boards/frdm_mcxn947_cpu0.conf b/samples/subsys/video/capture/boards/frdm_mcxn947_cpu0.conf
@@ -0,0 +1,5 @@
+CONFIG_VIDEO_BUFFER_POOL_SZ_MAX=40000
+CONFIG_VIDEO_BUFFER_POOL_NUM_MAX=2
+# Workaround for issue where SDMA driver needs to start before camera, so that
+# clock output will be generated for camera device
+CONFIG_CHECK_INIT_PRIORITIES=n
diff --git a/samples/subsys/video/capture/src/main.c b/samples/subsys/video/capture/src/main.c
@@ -42,6 +42,15 @@ int main(void)
 		return 0;
 	}
 
+	video = dev;
+#elif defined(CONFIG_VIDEO_MCUX_SDMA)
+	const struct device *const dev = DEVICE_DT_GET_ONE(nxp_video_smartdma);
+
+	if (!device_is_ready(dev)) {
+		LOG_ERR("%s: device not ready.\n", dev->name);
+		return 0;
+	}
+
 	video = dev;
 #endif