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path: root/drivers/firewire/core-transaction.c
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Diffstat (limited to 'drivers/firewire/core-transaction.c')
-rw-r--r--drivers/firewire/core-transaction.c17
1 files changed, 6 insertions, 11 deletions
diff --git a/drivers/firewire/core-transaction.c b/drivers/firewire/core-transaction.c
index 495849eb13c..673b03f8b4e 100644
--- a/drivers/firewire/core-transaction.c
+++ b/drivers/firewire/core-transaction.c
@@ -921,23 +921,15 @@ static void handle_registers(struct fw_card *card, struct fw_request *request,
void *payload, size_t length, void *callback_data)
{
int reg = offset & ~CSR_REGISTER_BASE;
- unsigned long long bus_time;
__be32 *data = payload;
int rcode = RCODE_COMPLETE;
switch (reg) {
case CSR_CYCLE_TIME:
- case CSR_BUS_TIME:
- if (!TCODE_IS_READ_REQUEST(tcode) || length != 4) {
- rcode = RCODE_TYPE_ERROR;
- break;
- }
-
- bus_time = card->driver->get_bus_time(card);
- if (reg == CSR_CYCLE_TIME)
- *data = cpu_to_be32(bus_time);
+ if (TCODE_IS_READ_REQUEST(tcode) && length == 4)
+ *data = cpu_to_be32(card->driver->get_cycle_time(card));
else
- *data = cpu_to_be32(bus_time >> 25);
+ rcode = RCODE_TYPE_ERROR;
break;
case CSR_BROADCAST_CHANNEL:
@@ -968,6 +960,9 @@ static void handle_registers(struct fw_card *card, struct fw_request *request,
case CSR_BUSY_TIMEOUT:
/* FIXME: Implement this. */
+ case CSR_BUS_TIME:
+ /* Useless without initialization by the bus manager. */
+
default:
rcode = RCODE_ADDRESS_ERROR;
break;