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Diffstat (limited to 'net/can/bcm.c')
-rw-r--r--net/can/bcm.c53
1 files changed, 24 insertions, 29 deletions
diff --git a/net/can/bcm.c b/net/can/bcm.c
index d6c8ae5b2e6a..c84963d2dee6 100644
--- a/net/can/bcm.c
+++ b/net/can/bcm.c
@@ -344,6 +344,18 @@ static void bcm_send_to_user(struct bcm_op *op, struct bcm_msg_head *head,
344 } 344 }
345} 345}
346 346
347static void bcm_tx_start_timer(struct bcm_op *op)
348{
349 if (op->kt_ival1.tv64 && op->count)
350 hrtimer_start(&op->timer,
351 ktime_add(ktime_get(), op->kt_ival1),
352 HRTIMER_MODE_ABS);
353 else if (op->kt_ival2.tv64)
354 hrtimer_start(&op->timer,
355 ktime_add(ktime_get(), op->kt_ival2),
356 HRTIMER_MODE_ABS);
357}
358
347static void bcm_tx_timeout_tsklet(unsigned long data) 359static void bcm_tx_timeout_tsklet(unsigned long data)
348{ 360{
349 struct bcm_op *op = (struct bcm_op *)data; 361 struct bcm_op *op = (struct bcm_op *)data;
@@ -365,26 +377,12 @@ static void bcm_tx_timeout_tsklet(unsigned long data)
365 377
366 bcm_send_to_user(op, &msg_head, NULL, 0); 378 bcm_send_to_user(op, &msg_head, NULL, 0);
367 } 379 }
368 }
369
370 if (op->kt_ival1.tv64 && (op->count > 0)) {
371
372 /* send (next) frame */
373 bcm_can_tx(op); 380 bcm_can_tx(op);
374 hrtimer_start(&op->timer,
375 ktime_add(ktime_get(), op->kt_ival1),
376 HRTIMER_MODE_ABS);
377 381
378 } else { 382 } else if (op->kt_ival2.tv64)
379 if (op->kt_ival2.tv64) { 383 bcm_can_tx(op);
380 384
381 /* send (next) frame */ 385 bcm_tx_start_timer(op);
382 bcm_can_tx(op);
383 hrtimer_start(&op->timer,
384 ktime_add(ktime_get(), op->kt_ival2),
385 HRTIMER_MODE_ABS);
386 }
387 }
388} 386}
389 387
390/* 388/*
@@ -964,23 +962,20 @@ static int bcm_tx_setup(struct bcm_msg_head *msg_head, struct msghdr *msg,
964 hrtimer_cancel(&op->timer); 962 hrtimer_cancel(&op->timer);
965 } 963 }
966 964
967 if ((op->flags & STARTTIMER) && 965 if (op->flags & STARTTIMER) {
968 ((op->kt_ival1.tv64 && op->count) || op->kt_ival2.tv64)) { 966 hrtimer_cancel(&op->timer);
969
970 /* spec: send can_frame when starting timer */ 967 /* spec: send can_frame when starting timer */
971 op->flags |= TX_ANNOUNCE; 968 op->flags |= TX_ANNOUNCE;
972
973 if (op->kt_ival1.tv64 && (op->count > 0)) {
974 /* op->count-- is done in bcm_tx_timeout_handler */
975 hrtimer_start(&op->timer, op->kt_ival1,
976 HRTIMER_MODE_REL);
977 } else
978 hrtimer_start(&op->timer, op->kt_ival2,
979 HRTIMER_MODE_REL);
980 } 969 }
981 970
982 if (op->flags & TX_ANNOUNCE) 971 if (op->flags & TX_ANNOUNCE) {
983 bcm_can_tx(op); 972 bcm_can_tx(op);
973 if (op->count)
974 op->count--;
975 }
976
977 if (op->flags & STARTTIMER)
978 bcm_tx_start_timer(op);
984 979
985 return msg_head->nframes * CFSIZ + MHSIZ; 980 return msg_head->nframes * CFSIZ + MHSIZ;
986} 981}