srd: Every callback should have a 'void *' parameter.

This is required in various situations and for various lib users,
especially so GUIs which might want to pass specific info via this
mechanism.

2 files changed, 10 insertions, 4 deletions

diff --git a/controller.c b/controller.c
index d4637f3..6e6e435 100644
--- a/controller.c
+++ b/controller.c
@@ -692,7 +692,8 @@ SRD_API int srd_session_feed(uint64_t start_samplenum, uint8_t * inbuf,
 	return SRD_OK;
 }
 
-SRD_API int srd_register_callback(int output_type, srd_pd_output_callback_t cb)
+SRD_API int srd_register_callback(int output_type,
+				  srd_pd_output_callback_t cb, void *data)
 {
 	struct srd_pd_callback *pd_cb;
 
@@ -705,6 +706,7 @@ SRD_API int srd_register_callback(int output_type, srd_pd_output_callback_t cb)
 
 	pd_cb->output_type = output_type;
 	pd_cb->callback = cb;
+	pd_cb->data = data;
 	callbacks = g_slist_append(callbacks, pd_cb);
 
 	return SRD_OK;
diff --git a/sigrokdecode.h b/sigrokdecode.h
index 4768b4c..18ab513 100644
--- a/sigrokdecode.h
+++ b/sigrokdecode.h
@@ -173,9 +173,13 @@ struct srd_proto_data {
 	void *data;
 };
 
+typedef void (*srd_pd_output_callback_t)(struct srd_proto_data *pdata,
+					 void *data);
+
 struct srd_pd_callback {
 	int output_type;
-	void (*callback)(struct srd_proto_data *);
+	srd_pd_output_callback_t callback;
+	void *data;
 };
 
 /* custom python types */
@@ -220,8 +224,8 @@ SRD_API int srd_session_start(int num_probes, int unitsize,
 SRD_API int srd_session_feed(uint64_t start_samplenum, uint8_t *inbuf,
 			     uint64_t inbuflen);
 SRD_API struct srd_decoder_inst *get_di_by_decobject(void *decobject);
-typedef void (*srd_pd_output_callback_t)(struct srd_proto_data *pdata);
-SRD_API int srd_register_callback(int output_type, srd_pd_output_callback_t cb);
+SRD_API int srd_register_callback(int output_type,
+				  srd_pd_output_callback_t cb, void *data);
 SRD_API void *srd_find_callback(int output_type);
 
 /*--- decoder.c -------------------------------------------------------------*/