esp8266/modules/flashbdev.py: Support extended block protocol.
@@ -10,15 +10,17 @@ class FlashBdev:
def __init__(self, blocks=NUM_BLK):
self.blocks = blocks
- def readblocks(self, n, buf):
- #print("readblocks(%s, %x(%d))" % (n, id(buf), len(buf)))
- esp.flash_read((n + self.START_SEC) * self.SEC_SIZE, buf)
+ def readblocks(self, n, buf, off=0):
+ #print("readblocks(%s, %x(%d), %d)" % (n, id(buf), len(buf), off))
+ esp.flash_read((n + self.START_SEC) * self.SEC_SIZE + off, buf)
- def writeblocks(self, n, buf):
- #print("writeblocks(%s, %x(%d))" % (n, id(buf), len(buf)))
+ def writeblocks(self, n, buf, off=None):
+ #print("writeblocks(%s, %x(%d), %d)" % (n, id(buf), len(buf), off))
#assert len(buf) <= self.SEC_SIZE, len(buf)
+ if off is None:
esp.flash_erase(n + self.START_SEC)
- esp.flash_write((n + self.START_SEC) * self.SEC_SIZE, buf)
+ off = 0
+ esp.flash_write((n + self.START_SEC) * self.SEC_SIZE + off, buf)
def ioctl(self, op, arg):
#print("ioctl(%d, %r)" % (op, arg))
@@ -26,6 +28,9 @@ class FlashBdev:
return self.blocks
if op == 5: # MP_BLOCKDEV_IOCTL_BLOCK_SIZE
return self.SEC_SIZE
+ if op == 6: # MP_BLOCKDEV_IOCTL_BLOCK_ERASE
+ esp.flash_erase(arg + self.START_SEC)
+ return 0
size = esp.flash_size()
if size < 1024*1024:
