diff options
Diffstat (limited to 'hw/ide/macio.c')
| -rw-r--r-- | hw/ide/macio.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/hw/ide/macio.c b/hw/ide/macio.c index 1c20616f5a..af57168db3 100644 --- a/hw/ide/macio.c +++ b/hw/ide/macio.c @@ -337,6 +337,27 @@ static void pmac_ide_transfer(DBDMA_io *io) s->io_buffer_size = 0; if (s->drive_kind == IDE_CD) { + + /* Handle non-block ATAPI DMA transfers */ + if (s->lba == -1) { + s->io_buffer_size = MIN(io->len, s->packet_transfer_size); + bdrv_acct_start(s->bs, &s->acct, s->io_buffer_size, + BDRV_ACCT_READ); + MACIO_DPRINTF("non-block ATAPI DMA transfer size: %d\n", + s->io_buffer_size); + + /* Copy ATAPI buffer directly to RAM and finish */ + cpu_physical_memory_write(io->addr, s->io_buffer, + s->io_buffer_size); + ide_atapi_cmd_ok(s); + m->dma_active = false; + + MACIO_DPRINTF("end of non-block ATAPI DMA transfer\n"); + bdrv_acct_done(s->bs, &s->acct); + io->dma_end(io); + return; + } + bdrv_acct_start(s->bs, &s->acct, io->len, BDRV_ACCT_READ); pmac_ide_atapi_transfer_cb(io, 0); return; |