stmhal: Expose flash and SD card as proper objects with block protocol.

You can now create (singleton) objects representing the flash and SD
card, using:

    flash = pyb.Flash()
    sdcard = pyb.SDCard()

These objects provide the block protocol.

1 files changed, 6 insertions, 0 deletions

diff --git a/stmhal/storage.h b/stmhal/storage.h
index 4ff7abbe1..30aa48309 100644
--- a/stmhal/storage.h
+++ b/stmhal/storage.h
@@ -36,3 +36,9 @@ void storage_irq_handler(void);
 void storage_flush(void);
 bool storage_read_block(uint8_t *dest, uint32_t block);
 bool storage_write_block(const uint8_t *src, uint32_t block);
+
+// these return 0 on success, non-zero on error
+mp_uint_t storage_read_blocks(uint8_t *dest, uint32_t block_num, uint32_t num_blocks);
+mp_uint_t storage_write_blocks(const uint8_t *src, uint32_t block_num, uint32_t num_blocks);
+
+extern const struct _mp_obj_type_t pyb_flash_type;