Support modifications of DMA engine and allow DMA customizations by Event engine

3 files changed, 18 insertions, 1 deletions

diff --git a/ipecamera/image.c b/ipecamera/image.c
index bf5faf9..3d1056d 100644
--- a/ipecamera/image.c
+++ b/ipecamera/image.c
@@ -16,6 +16,8 @@
 #include "model.h"
 #include "image.h"
 
+#include "dma/nwl_dma.h"
+
 #define IPECAMERA_SLEEP_TIME 250000
 #define IPECAMERA_MAX_LINES 1088
 #define IPECAMERA_DEFAULT_BUFFER_SIZE 10
@@ -171,6 +173,19 @@ void ipecamera_free(pcilib_context_t *vctx) {
     }
 }
 
+pcilib_dma_context_t *ipecamera_init_dma(pcilib_context_t *vctx) {
+    ipecamera_t *ctx = (ipecamera_t*)vctx;
+    
+    pcilib_model_description_t *model_info = pcilib_get_model_description(ctx->pcilib);
+    if ((!model_info->dma_api)||(!model_info->dma_api->init)) {
+	pcilib_error("The DMA engine is not configured in model");
+	return NULL;
+    }
+    
+    return model_info->dma_api->init(ctx->pcilib, PCILIB_DMA_MODIFICATION_DEFAULT, NULL);
+}
+
+
 int ipecamera_set_buffer_size(ipecamera_t *ctx, int size) {
     if (ctx->started) {
 	pcilib_error("Can't change buffer size while grabbing");
diff --git a/ipecamera/image.h b/ipecamera/image.h
index 6863d09..4bac673 100644
--- a/ipecamera/image.h
+++ b/ipecamera/image.h
@@ -18,6 +18,7 @@ pcilib_event_id_t ipecamera_next_event(pcilib_context_t *ctx, pcilib_event_t eve
 void* ipecamera_get(pcilib_context_t *ctx, pcilib_event_id_t event_id, pcilib_event_data_type_t data_type, size_t arg_size, void *arg, size_t *size);
 int ipecamera_return(pcilib_context_t *ctx, pcilib_event_id_t event_id);
 
+pcilib_dma_context_t *ipecamera_init_dma(pcilib_context_t *ctx);
 
 
 #endif /* _IPECAMERA_IMAGE_H */
diff --git a/ipecamera/model.h b/ipecamera/model.h
index da0ac12..a460dde 100644
--- a/ipecamera/model.h
+++ b/ipecamera/model.h
@@ -109,7 +109,8 @@ pcilib_event_api_description_t ipecamera_image_api = {
     
     ipecamera_next_event,
     ipecamera_get,
-    ipecamera_return
+    ipecamera_return,
+    ipecamera_init_dma
 };
 #else
 extern pcilib_event_api_description_t ipecamera_image_api;