[Pdbg] [PATCH v2 2/6] libsbefifo: Add connect api with transport callback

[Amitay Isaacs]

When sbefifo library is initialized with transport callback, instead of
reading/writing the chip-op data from the sbefifo device, it will use
the transport callback to write request and read reply from sbefifo.

Signed-off-by: Amitay Isaacs <amitay at ozlabs.org>
---
 libsbefifo/connect.c    | 25 +++++++++++++++++++++++++
 libsbefifo/libsbefifo.h |  3 +++
 2 files changed, 28 insertions(+)

diff --git a/libsbefifo/connect.c b/libsbefifo/connect.c
index 08194e1..927ddc1 100644
--- a/libsbefifo/connect.c
+++ b/libsbefifo/connect.c
@@ -53,6 +53,31 @@ int sbefifo_connect(const char *fifo_path, struct sbefifo_context **out)
 	return 0;
 }
 
+int sbefifo_connect_transport(sbefifo_transport_fn transport_func,
+			      void *priv,
+			      struct sbefifo_context **out)
+{
+	struct sbefifo_context *sctx;
+
+	if (!transport_func)
+		return EINVAL;
+
+	sctx = malloc(sizeof(struct sbefifo_context));
+	if (!sctx) {
+		fprintf(stderr, "Memory allocation error\n");
+		return ENOMEM;
+	}
+
+	*sctx = (struct sbefifo_context) {
+		.fd = -1,
+		.transport_func = transport_func,
+		.priv = priv,
+	};
+
+	*out = sctx;
+	return 0;
+}
+
 void sbefifo_disconnect(struct sbefifo_context *sctx)
 {
 	if (sctx->fd != -1)
diff --git a/libsbefifo/libsbefifo.h b/libsbefifo/libsbefifo.h
index 2963450..8ddb057 100644
--- a/libsbefifo/libsbefifo.h
+++ b/libsbefifo/libsbefifo.h
@@ -56,6 +56,9 @@ typedef int (*sbefifo_transport_fn)(uint8_t *request_buf,
 				    void *priv);
 
 int sbefifo_connect(const char *fifo_path, struct sbefifo_context **out);
+int sbefifo_connect_transport(sbefifo_transport_fn transport_func,
+			      void *priv,
+			      struct sbefifo_context **out);
 void sbefifo_disconnect(struct sbefifo_context *sctx);
 
 uint32_t sbefifo_ffdc_get(struct sbefifo_context *sctx, const uint8_t **ffdc, uint32_t *ffdc_len);
-- 
2.21.0