1*f1ae32a1SGerd Hoffmann /* 2*f1ae32a1SGerd Hoffmann * QEMU USB emulation, libhw bits. 3*f1ae32a1SGerd Hoffmann * 4*f1ae32a1SGerd Hoffmann * Permission is hereby granted, free of charge, to any person obtaining a copy 5*f1ae32a1SGerd Hoffmann * of this software and associated documentation files (the "Software"), to deal 6*f1ae32a1SGerd Hoffmann * in the Software without restriction, including without limitation the rights 7*f1ae32a1SGerd Hoffmann * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 8*f1ae32a1SGerd Hoffmann * copies of the Software, and to permit persons to whom the Software is 9*f1ae32a1SGerd Hoffmann * furnished to do so, subject to the following conditions: 10*f1ae32a1SGerd Hoffmann * 11*f1ae32a1SGerd Hoffmann * The above copyright notice and this permission notice shall be included in 12*f1ae32a1SGerd Hoffmann * all copies or substantial portions of the Software. 13*f1ae32a1SGerd Hoffmann * 14*f1ae32a1SGerd Hoffmann * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15*f1ae32a1SGerd Hoffmann * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16*f1ae32a1SGerd Hoffmann * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17*f1ae32a1SGerd Hoffmann * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 18*f1ae32a1SGerd Hoffmann * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 19*f1ae32a1SGerd Hoffmann * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 20*f1ae32a1SGerd Hoffmann * THE SOFTWARE. 21*f1ae32a1SGerd Hoffmann */ 22*f1ae32a1SGerd Hoffmann #include "qemu-common.h" 23*f1ae32a1SGerd Hoffmann #include "cpu-common.h" 24*f1ae32a1SGerd Hoffmann #include "hw/usb.h" 25*f1ae32a1SGerd Hoffmann #include "dma.h" 26*f1ae32a1SGerd Hoffmann 27*f1ae32a1SGerd Hoffmann int usb_packet_map(USBPacket *p, QEMUSGList *sgl) 28*f1ae32a1SGerd Hoffmann { 29*f1ae32a1SGerd Hoffmann int is_write = (p->pid == USB_TOKEN_IN); 30*f1ae32a1SGerd Hoffmann target_phys_addr_t len; 31*f1ae32a1SGerd Hoffmann void *mem; 32*f1ae32a1SGerd Hoffmann int i; 33*f1ae32a1SGerd Hoffmann 34*f1ae32a1SGerd Hoffmann for (i = 0; i < sgl->nsg; i++) { 35*f1ae32a1SGerd Hoffmann len = sgl->sg[i].len; 36*f1ae32a1SGerd Hoffmann mem = cpu_physical_memory_map(sgl->sg[i].base, &len, 37*f1ae32a1SGerd Hoffmann is_write); 38*f1ae32a1SGerd Hoffmann if (!mem) { 39*f1ae32a1SGerd Hoffmann goto err; 40*f1ae32a1SGerd Hoffmann } 41*f1ae32a1SGerd Hoffmann qemu_iovec_add(&p->iov, mem, len); 42*f1ae32a1SGerd Hoffmann if (len != sgl->sg[i].len) { 43*f1ae32a1SGerd Hoffmann goto err; 44*f1ae32a1SGerd Hoffmann } 45*f1ae32a1SGerd Hoffmann } 46*f1ae32a1SGerd Hoffmann return 0; 47*f1ae32a1SGerd Hoffmann 48*f1ae32a1SGerd Hoffmann err: 49*f1ae32a1SGerd Hoffmann usb_packet_unmap(p); 50*f1ae32a1SGerd Hoffmann return -1; 51*f1ae32a1SGerd Hoffmann } 52*f1ae32a1SGerd Hoffmann 53*f1ae32a1SGerd Hoffmann void usb_packet_unmap(USBPacket *p) 54*f1ae32a1SGerd Hoffmann { 55*f1ae32a1SGerd Hoffmann int is_write = (p->pid == USB_TOKEN_IN); 56*f1ae32a1SGerd Hoffmann int i; 57*f1ae32a1SGerd Hoffmann 58*f1ae32a1SGerd Hoffmann for (i = 0; i < p->iov.niov; i++) { 59*f1ae32a1SGerd Hoffmann cpu_physical_memory_unmap(p->iov.iov[i].iov_base, 60*f1ae32a1SGerd Hoffmann p->iov.iov[i].iov_len, is_write, 61*f1ae32a1SGerd Hoffmann p->iov.iov[i].iov_len); 62*f1ae32a1SGerd Hoffmann } 63*f1ae32a1SGerd Hoffmann } 64