Add opaque programmer registration infrastructure

An opaque programmer does not allow direct flash access and only offers
abstract probe/read/erase/write methods.
Due to that, opaque programmers need their own infrastructure and
registration framework.

Corresponding to flashrom svn r1459.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Michael Karcher <flashrom@mkarcher.dialup.fu-berlin.de>

flashchips.c

@@ -8873,6 +8873,28 @@ const struct flashchip flashchips[] = {
 		.voltage	= {3000, 3600}, /* Also has 12V fast program */
 	},
 
+	{
+		.vendor		= "Programmer",
+		.name		= "Opaque flash chip",
+		.bustype	= BUS_PROG,
+		.manufacture_id	= PROGMANUF_ID,
+		.model_id	= PROGDEV_ID,
+		.total_size	= 0,
+		.page_size	= 256,
+		/* probe is assumed to work, rest will be filled in by probe */
+		.tested		= TEST_OK_PROBE,
+		.probe		= probe_opaque,
+		/* eraseblock sizes will be set by the probing function */
+		.block_erasers	=
+		{
+			{
+				.block_erase = erase_opaque,
+			}
+		},
+		.write		= write_opaque,
+		.read		= read_opaque,
+	},
+
 	{
 		.vendor		= "AMIC",
 		.name		= "unknown AMIC SPI chip",