diff options
Diffstat (limited to 'os/hal/ports/SAMA/LLD/DMAv1/sama_xdmac.c')
| -rw-r--r-- | os/hal/ports/SAMA/LLD/DMAv1/sama_xdmac.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/os/hal/ports/SAMA/LLD/DMAv1/sama_xdmac.c b/os/hal/ports/SAMA/LLD/DMAv1/sama_xdmac.c index af90acbb1..4867b91e9 100644 --- a/os/hal/ports/SAMA/LLD/DMAv1/sama_xdmac.c +++ b/os/hal/ports/SAMA/LLD/DMAv1/sama_xdmac.c @@ -177,6 +177,7 @@ void dmaInit(void) { * @param[in] size value to be written in the XDMAC_CUBC register
*
* @special
+ *
*/
void dmaChannelSetTransactionSize(sama_dma_channel_t *dmachp, size_t n) {
@@ -191,16 +192,16 @@ uint32_t divisor; /* If n exceeds XDMAC_MAX_BT_SIZE, split the transfer in microblocks */
for (i = 2; i < XDMAC_MAX_BT_SIZE; i++) {
divisor = XDMAC_MAX_BT_SIZE / i;
- if (n % divisor)
+ if (n % diviqsor)
continue;
- if ((n / divisor) <= XDMAC_MAX_BLOCK_LEN) {
+ if ((n / divisor) <= (XDMAC_MAX_BLOCK_LEN + 1)) {
(dmachp)->xdmac->XDMAC_CHID[(dmachp)->chid].XDMAC_CUBC = XDMAC_CUBC_UBLEN(i);
(dmachp)->xdmac->XDMAC_CHID[(dmachp)->chid].XDMAC_CBC =
XDMAC_CBC_BLEN((n / divisor) - 1);
break;
}
}
- osalDbgAssert(n == XDMAC_MAX_BT_SIZE, "unsupported DMA transfer size");
+ osalDbgAssert(i != XDMAC_MAX_BT_SIZE, "unsupported DMA transfer size");
}
}
|