int (*check)(struct cmp_connection *c, __be32 pcr),
enum bus_reset_handling bus_reset_handling)
{
- struct fw_device *device = fw_parent_device(c->resources.unit);
- int generation = c->resources.generation;
- int rcode, errors = 0;
__be32 old_arg, buffer[2];
int err;
old_arg = buffer[0];
buffer[1] = modify(c, buffer[0]);
- rcode = fw_run_transaction(
- device->card, TCODE_LOCK_COMPARE_SWAP,
- device->node_id, generation, device->max_speed,
+ err = snd_fw_transaction(
+ c->resources.unit, TCODE_LOCK_COMPARE_SWAP,
CSR_REGISTER_BASE + CSR_IPCR(c->pcr_index),
- buffer, 8);
-
- if (rcode == RCODE_COMPLETE) {
- if (buffer[0] == old_arg) /* success? */
- break;
-
- if (check) {
- err = check(c, buffer[0]);
- if (err < 0)
- return err;
- }
- } else if (rcode == RCODE_GENERATION)
- goto bus_reset;
- else if (rcode_is_permanent_error(rcode) || ++errors >= 3)
- goto io_error;
+ buffer, 8,
+ FW_FIXED_GENERATION | c->resources.generation);
+
+ if (err < 0) {
+ if (err == -EAGAIN &&
+ bus_reset_handling == SUCCEED_ON_BUS_RESET)
+ err = 0;
+ return err;
+ }
+
+ if (buffer[0] == old_arg) /* success? */
+ break;
+
+ if (check) {
+ err = check(c, buffer[0]);
+ if (err < 0)
+ return err;
+ }
}
c->last_pcr_value = buffer[1];
return 0;
-
-io_error:
- cmp_error(c, "transaction failed: %s\n", fw_rcode_string(rcode));
- return -EIO;
-
-bus_reset:
- return bus_reset_handling == ABORT_ON_BUS_RESET ? -EAGAIN : 0;
}
err = snd_fw_transaction(unit, TCODE_READ_QUADLET_REQUEST,
CSR_REGISTER_BASE + CSR_IMPR,
- &impr_be, 4);
+ &impr_be, 4, 0);
if (err < 0)
return err;
impr = be32_to_cpu(impr_be);