arm7_9: Avoid infinite loops in bulk write dispatching

[fw/openocd] / src / target / arm7_9_common.h

diff --git a/src/target/arm7_9_common.h b/src/target/arm7_9_common.h
index 737cbae5559c04491c8c17c85cb3582d64861734..5821e132bdc2f5f1f03d0861da0d42e76759a9af 100644 (file)
--- a/src/target/arm7_9_common.h
+++ b/src/target/arm7_9_common.h
@@ -118,6 +118,20 @@ struct arm7_9_common {
 
        void (*pre_restore_context)(struct target *target);
        /**< Callback function called before restoring the processor context */
+
+       /**
+        * Variant specific memory write function that does not dispatch to bulk_write_memory.
+        * Used as a fallback when bulk writes are unavailable, or for writing data needed to
+        * do the bulk writes.
+        */
+       int (*write_memory)(struct target *target, uint32_t address,
+                       uint32_t size, uint32_t count, const uint8_t *buffer);
+       /**
+        * Write target memory in multiples of 4 bytes, optimized for
+        * writing large quantities of data.
+        */
+       int (*bulk_write_memory)(struct target *target, uint32_t address,
+                       uint32_t count, const uint8_t *buffer);
 };
 
 static inline struct arm7_9_common *target_to_arm7_9(struct target *target)
@@ -151,6 +165,10 @@ int arm7_9_read_memory(struct target *target, uint32_t address,
                uint32_t size, uint32_t count, uint8_t *buffer);
 int arm7_9_write_memory(struct target *target, uint32_t address,
                uint32_t size, uint32_t count, const uint8_t *buffer);
+int arm7_9_write_memory_opt(struct target *target, uint32_t address,
+               uint32_t size, uint32_t count, const uint8_t *buffer);
+int arm7_9_write_memory_no_opt(struct target *target, uint32_t address,
+               uint32_t size, uint32_t count, const uint8_t *buffer);
 int arm7_9_bulk_write_memory(struct target *target, uint32_t address,
                uint32_t count, const uint8_t *buffer);