firewire: add CSR cmstr support
Implement the cmstr bit, which is required for cycle master capable
nodes and tested for by the Base 1394 Test Suite.
This bit allows the bus master to disable cycle start packets; there are
bus master implementations that actually do this.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
diff --git a/drivers/firewire/core.h b/drivers/firewire/core.h
index 3b8c0f0..aaecdd1 100644
--- a/drivers/firewire/core.h
+++ b/drivers/firewire/core.h
@@ -40,6 +40,8 @@
#define FEATURE_PRIORITY_BUDGET 0x01
+#define CSR_STATE_BIT_CMSTR (1 << 8)
+
struct fw_card_driver {
/*
* Enable the given card with the given initial config rom.