target: add function to get number of bytes available in working area

[fw/openocd] / src / target / target.c

diff --git a/src/target/target.c b/src/target/target.c
index 26607c578259023c3cf87d65f32990019a5447c6..5b37ef03bc22b2ffabdcecae1bc6b90c1059a72c 100644 (file)
--- a/src/target/target.c
+++ b/src/target/target.c
@@ -1502,6 +1502,25 @@ void target_free_all_working_areas(struct target *target)
        target_free_all_working_areas_restore(target, 1);
 }
 
+/* Find the largest number of bytes that can be allocated */
+uint32_t target_get_working_area_avail(struct target *target)
+{
+       struct working_area *c = target->working_areas;
+       uint32_t max_size = 0;
+
+       if (c == NULL)
+               return target->working_area_size;
+
+       while (c) {
+               if (c->free && max_size < c->size)
+                       max_size = c->size;
+
+               c = c->next;
+       }
+
+       return max_size;
+}
+
 int target_arch_state(struct target *target)
 {
        int retval;