summaryrefslogtreecommitdiff
path: root/hw/usb/libhw.c
diff options
context:
space:
mode:
authorGerd Hoffmann <kraxel@redhat.com>2012-03-07 14:55:18 +0100
committerGerd Hoffmann <kraxel@redhat.com>2012-03-13 10:15:32 +0100
commitf1ae32a1ecda8aaff7a355c9030c0d8c363f3a70 (patch)
tree39edd226fd23a9dfee6d32ee3cf289dfff05132d /hw/usb/libhw.c
parentcb72b75824c0362e5cb32eb8796930f29fa36d17 (diff)
downloadqemu-f1ae32a1ecda8aaff7a355c9030c0d8c363f3a70.tar.gz
usb: the big rename
Reorganize usb source files. Create a new hw/usb/ directory and move all usb source code to that place. Also make filenames a bit more descriptive. Host adapters are prefixed with "hch-" now, usb device emulations are prefixed with "dev-". Fixup paths Makefile and include paths to make it compile. No code changes. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'hw/usb/libhw.c')
-rw-r--r--hw/usb/libhw.c63
1 files changed, 63 insertions, 0 deletions
diff --git a/hw/usb/libhw.c b/hw/usb/libhw.c
new file mode 100644
index 0000000000..2462351389
--- /dev/null
+++ b/hw/usb/libhw.c
@@ -0,0 +1,63 @@
+/*
+ * QEMU USB emulation, libhw bits.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#include "qemu-common.h"
+#include "cpu-common.h"
+#include "hw/usb.h"
+#include "dma.h"
+
+int usb_packet_map(USBPacket *p, QEMUSGList *sgl)
+{
+ int is_write = (p->pid == USB_TOKEN_IN);
+ target_phys_addr_t len;
+ void *mem;
+ int i;
+
+ for (i = 0; i < sgl->nsg; i++) {
+ len = sgl->sg[i].len;
+ mem = cpu_physical_memory_map(sgl->sg[i].base, &len,
+ is_write);
+ if (!mem) {
+ goto err;
+ }
+ qemu_iovec_add(&p->iov, mem, len);
+ if (len != sgl->sg[i].len) {
+ goto err;
+ }
+ }
+ return 0;
+
+err:
+ usb_packet_unmap(p);
+ return -1;
+}
+
+void usb_packet_unmap(USBPacket *p)
+{
+ int is_write = (p->pid == USB_TOKEN_IN);
+ int i;
+
+ for (i = 0; i < p->iov.niov; i++) {
+ cpu_physical_memory_unmap(p->iov.iov[i].iov_base,
+ p->iov.iov[i].iov_len, is_write,
+ p->iov.iov[i].iov_len);
+ }
+}