Aren/haiku
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Report from NetBSD emuxki driver:

Browse Source 
"Add some byteswap ops around DMA descriptors for big endian machines."


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15039 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Jérôme Duval 2005-11-20 13:21:04 +00:00
parent 742677072f
commit 3ce6b663e6
1 changed files with 7 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
src/add-ons/kernel/drivers/audio/emuxki/emuxki.c
View File

@ -41,6 +41,7 @@
* POSSIBILITY OF SUCH DAMAGE. * POSSIBILITY OF SUCH DAMAGE.
*/ */
#include <ByteOrder.h>
#include <KernelExport.h> #include <KernelExport.h>
#include <PCI.h> #include <PCI.h>
#include <string.h> #include <string.h>
@ -242,11 +243,11 @@ emuxki_pmem_alloc(emuxki_dev *card, size_t size)
for (i = 0; i < EMU_MAXPTE; i++) { for (i = 0; i < EMU_MAXPTE; i++) {
PRINT(("emuxki_pmem_alloc : %d\n", i)); PRINT(("emuxki_pmem_alloc : %d\n", i));
if ((ptb[i] & EMU_CHAN_MAP_PTE_MASK) == silentpage) { if ((B_LENDIAN_TO_HOST_INT32(ptb[i]) & EMU_CHAN_MAP_PTE_MASK) == silentpage) {
/* We look for a free PTE */ /* We look for a free PTE */
//s = splaudio(); //s = splaudio();
for (j = 0; j < numblocks; j++) for (j = 0; j < numblocks; j++)
if ((ptb[i + j] & EMU_CHAN_MAP_PTE_MASK) if ((B_LENDIAN_TO_HOST_INT32(ptb[i + j]) & EMU_CHAN_MAP_PTE_MASK)
!= silentpage) != silentpage)
break; break;
if (j == numblocks) { if (j == numblocks) {
@ -257,10 +258,10 @@ emuxki_pmem_alloc(emuxki_dev *card, size_t size)
} }
PRINT(("emuxki_pmem_alloc : j == numblocks emuxki_mem_new ok\n")); PRINT(("emuxki_pmem_alloc : j == numblocks emuxki_mem_new ok\n"));
for (j = 0; j < numblocks; j++) for (j = 0; j < numblocks; j++)
ptb[i + j] = (uint32) ( ptb[i + j] = B_HOST_TO_LENDIAN_INT32((uint32) (
(( ((uint32)mem->phy_base) + (( ((uint32)mem->phy_base) +
j * EMU_PTESIZE) << 1) j * EMU_PTESIZE) << 1)
| (i + j)); | (i + j)));
LIST_INSERT_HEAD(&(card->mem), mem, next); LIST_INSERT_HEAD(&(card->mem), mem, next);
PRINT(("emuxki_pmem_alloc : j == numblocks returning\n")); PRINT(("emuxki_pmem_alloc : j == numblocks returning\n"));
@ -316,7 +317,7 @@ emuxki_mem_free(emuxki_dev *card, void *ptr)
numblocks++; numblocks++;
for (i = 0; i < numblocks; i++) for (i = 0; i < numblocks; i++)
ptb[mem->ptbidx + i] = ptb[mem->ptbidx + i] =
silentpage | (mem->ptbidx + i); B_HOST_TO_LENDIAN_INT32(silentpage | (mem->ptbidx + i));
} }
LIST_REMOVE(mem, next); LIST_REMOVE(mem, next);
//splx(s); //splx(s);
@ -2689,7 +2690,7 @@ emuxki_init(emuxki_dev * card)
silentpage = ((uint32)card->silentpage_phy_base) << 1; silentpage = ((uint32)card->silentpage_phy_base) << 1;
ptb = card->ptb_log_base; ptb = card->ptb_log_base;
for (i = 0; i < EMU_MAXPTE; i++) for (i = 0; i < EMU_MAXPTE; i++)
ptb[i] = silentpage | i; ptb[i] = B_HOST_TO_LENDIAN_INT32(silentpage | i);
/* Write PTB address and set TCB to none */ /* Write PTB address and set TCB to none */
emuxki_chan_write(&card->config, 0, EMU_PTB, (uint32)card->ptb_phy_base); emuxki_chan_write(&card->config, 0, EMU_PTB, (uint32)card->ptb_phy_base);