X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=src%2Fkernel%2Fao_storage.h;h=026074b5d2db4c2bd30768a2e1fcd2de780bc636;hb=0375e9840ea1bcc486b56ccb3aaace57875312a7;hp=cf37a824db0a1c986603fd0b267d9cce59bcaaf4;hpb=c6e57291d91f1f6c4de5c54a5cfd3eef66d9f830;p=fw%2Faltos

diff --git a/src/kernel/ao_storage.h b/src/kernel/ao_storage.h
index cf37a824..026074b5 100644
--- a/src/kernel/ao_storage.h
+++ b/src/kernel/ao_storage.h
@@ -31,10 +31,14 @@
 typedef ao_storage_pos_t ao_pos_t;
 
 /* Total bytes of available storage */
+#ifndef ao_storage_total
 extern ao_pos_t	ao_storage_total;
+#endif
 
 /* Block size - device is erased in these units. At least 256 bytes */
+#ifndef ao_storage_block
 extern ao_pos_t	ao_storage_block;
+#endif
 
 #ifndef USE_STORAGE_CONFIG
 #define USE_STORAGE_CONFIG 1
@@ -50,7 +54,9 @@ extern ao_pos_t	ao_storage_config;
 #endif
 
 /* Storage unit size - device reads and writes must be within blocks of this size. Usually 256 bytes. */
+#ifndef ao_storage_unit
 extern uint16_t ao_storage_unit;
+#endif
 
 /* Initialize above values. Can only be called once the OS is running */
 void
@@ -66,7 +72,13 @@ ao_storage_read(ao_pos_t pos, void *buf, uint16_t len);
 
 /* Erase a block of storage. This always clears ao_storage_block bytes */
 uint8_t
-ao_storage_erase(ao_pos_t pos);
+ao_storage_erase(ao_pos_t pos, uint32_t len);
+
+/* Check storage starting at pos to see if the chunk there
+ * is erased
+ */
+uint8_t
+ao_storage_is_erased(uint32_t pos);
 
 /* Flush any pending writes to stable storage */
 void
@@ -88,6 +100,10 @@ ao_storage_device_read(ao_pos_t pos, void *buf, uint16_t len);
 uint8_t
 ao_storage_device_write(ao_pos_t pos, void *buf, uint16_t len);
 
+/* Erase device from pos through pos + ao_storage_block */
+uint8_t
+ao_storage_device_erase(uint32_t pos);
+
 /* Initialize low-level device bits */
 void
 ao_storage_device_init(void);