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authorClemens Ladisch <clemens@ladisch.de>2010-06-10 08:34:13 +0200
committerClemens Ladisch <clemens@ladisch.de>2010-06-10 08:34:13 +0200
commit27a2329f8235d6ce637463f5d83e98d760ef006e (patch)
treedcc3b1a62d92d407f38744a93914742e9eed1816 /drivers/firewire/core-transaction.c
parenta48777e03ad53777ed119a5f86dd22a6c5a378ad (diff)
firewire: add CSR BUSY_TIMEOUT support
Implement the BUSY_TIMEOUT register, which is required for nodes that support retries. Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Diffstat (limited to 'drivers/firewire/core-transaction.c')
-rw-r--r--drivers/firewire/core-transaction.c14
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/firewire/core-transaction.c b/drivers/firewire/core-transaction.c
index 2a390726fa7..8146133818d 100644
--- a/drivers/firewire/core-transaction.c
+++ b/drivers/firewire/core-transaction.c
@@ -1115,6 +1115,17 @@ static void handle_registers(struct fw_card *card, struct fw_request *request,
rcode = RCODE_TYPE_ERROR;
break;
+ case CSR_BUSY_TIMEOUT:
+ if (tcode == TCODE_READ_QUADLET_REQUEST)
+ *data = cpu_to_be32(card->driver->
+ read_csr_reg(card, CSR_BUSY_TIMEOUT));
+ else if (tcode == TCODE_WRITE_QUADLET_REQUEST)
+ card->driver->write_csr_reg(card, CSR_BUSY_TIMEOUT,
+ be32_to_cpu(*data));
+ else
+ rcode = RCODE_TYPE_ERROR;
+ break;
+
case CSR_BROADCAST_CHANNEL:
if (tcode == TCODE_READ_QUADLET_REQUEST)
*data = cpu_to_be32(card->broadcast_channel);
@@ -1140,9 +1151,6 @@ static void handle_registers(struct fw_card *card, struct fw_request *request,
BUG();
break;
- case CSR_BUSY_TIMEOUT:
- /* FIXME: Implement this. */
-
default:
rcode = RCODE_ADDRESS_ERROR;
break;