From f1ae32a1ecda8aaff7a355c9030c0d8c363f3a70 Mon Sep 17 00:00:00 2001 From: Gerd Hoffmann Date: Wed, 7 Mar 2012 14:55:18 +0100 Subject: 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 --- hw/usb/libhw.c | 63 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 63 insertions(+) create mode 100644 hw/usb/libhw.c (limited to 'hw/usb/libhw.c') 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); + } +} -- cgit v1.2.1