2 * QEMU USB emulation, libhw bits.
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5 * of this software and associated documentation files (the "Software"), to deal
6 * in the Software without restriction, including without limitation the rights
7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8 * copies of the Software, and to permit persons to whom the Software is
9 * furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 #include "qemu-common.h"
23 #include "cpu-common.h"
27 int usb_packet_map(USBPacket
*p
, QEMUSGList
*sgl
)
29 DMADirection dir
= (p
->pid
== USB_TOKEN_IN
) ?
30 DMA_DIRECTION_FROM_DEVICE
: DMA_DIRECTION_TO_DEVICE
;
35 for (i
= 0; i
< sgl
->nsg
; i
++) {
37 mem
= dma_memory_map(sgl
->dma
, sgl
->sg
[i
].base
, &len
, dir
);
41 qemu_iovec_add(&p
->iov
, mem
, len
);
42 if (len
!= sgl
->sg
[i
].len
) {
49 usb_packet_unmap(p
, sgl
);
53 void usb_packet_unmap(USBPacket
*p
, QEMUSGList
*sgl
)
55 DMADirection dir
= (p
->pid
== USB_TOKEN_IN
) ?
56 DMA_DIRECTION_FROM_DEVICE
: DMA_DIRECTION_TO_DEVICE
;
59 for (i
= 0; i
< p
->iov
.niov
; i
++) {
60 dma_memory_unmap(sgl
->dma
, p
->iov
.iov
[i
].iov_base
,
61 p
->iov
.iov
[i
].iov_len
, dir
,
62 p
->iov
.iov
[i
].iov_len
);