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 · May 16, 2024 · 7755b6a · 7755b6a
1 parent e53b632
commit 7755b6a
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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
@@ -41,6 +41,15 @@ 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
 
@@ -78,6 +87,7 @@ int main(void)
 	       (char)(fmt.pixelformat >> 24),
 	       fmt.width, fmt.height);
 
+
 	/* Size to allocate for each buffer */
 	bsize = fmt.pitch * fmt.height / caps.vbuf_per_frame;