diff options
| author | Daniel Hellstrom <daniel@gaisler.com> | 2016-03-22 16:41:51 +0100 |
|---|---|---|
| committer | Daniel Hellstrom <daniel@gaisler.com> | 2017-03-06 07:54:55 +0100 |
| commit | 9cb7e5d80ff4db2db02ff198b998e662d20070eb (patch) | |
| tree | 77f0a874fd55b2737809927cf53dae3df18d8b47 /c/src/lib/libbsp/sparc/shared/include/grspw_pkt.h | |
| parent | leon, grspw_pkt: fixed error return path in dma_open (diff) | |
| download | rtems-9cb7e5d80ff4db2db02ff198b998e662d20070eb.tar.bz2 | |
leon, grspw_pkt: fixed and improved RX/TX wait
Diffstat (limited to 'c/src/lib/libbsp/sparc/shared/include/grspw_pkt.h')
| -rw-r--r-- | c/src/lib/libbsp/sparc/shared/include/grspw_pkt.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/c/src/lib/libbsp/sparc/shared/include/grspw_pkt.h b/c/src/lib/libbsp/sparc/shared/include/grspw_pkt.h index 17bbee8038..0bc749f7a0 100644 --- a/c/src/lib/libbsp/sparc/shared/include/grspw_pkt.h +++ b/c/src/lib/libbsp/sparc/shared/include/grspw_pkt.h @@ -487,7 +487,7 @@ extern void grspw_dma_tx_count(void *c, int *send, int *sched, int *sent); #define GRSPW_OP_AND 0 #define GRSPW_OP_OR 1 -/* Block until ready_cnt or fewer packets are Queued in "Send and Scheduled" Q, +/* Block until send_cnt or fewer packets are Queued in "Send and Scheduled" Q, * op (AND or OR), sent_cnt or more packet "have been sent" (Sent Q) condition * is met. * If a link error occurs and the Stop on Link error is defined, this function @@ -504,6 +504,7 @@ extern void grspw_dma_tx_count(void *c, int *send, int *sched, int *sent); * 0 Returing to caller because specified conditions are now fullfilled * 1 DMA stopped * 2 Timeout, conditions are not met + * 3 Another task is already waiting. Service is Busy. */ extern int grspw_dma_tx_wait(void *c, int send_cnt, int op, int sent_cnt, int timeout); @@ -565,7 +566,7 @@ extern void grspw_dma_rx_count(void *c, int *ready, int *sched, int *recv); * the other conditions. If timeout is zero, the function will wait forever * until the condition is satisfied. * - * NOTE: if IRQ of TX descriptors are not enabled conditions are never + * NOTE: if IRQ of RX descriptors are not enabled conditions are never * checked, this may hang infinitely unless a timeout has been specified * * Return Code @@ -573,6 +574,7 @@ extern void grspw_dma_rx_count(void *c, int *ready, int *sched, int *recv); * 0 Returing to caller because specified conditions are now fullfilled * 1 DMA stopped * 2 Timeout, conditions are not met + * 3 Another task is already waiting. Service is Busy. */ extern int grspw_dma_rx_wait(void *c, int recv_cnt, int op, int ready_cnt, int timeout); |