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/*
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* QEMU USB emulation
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*
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* Copyright (c) 2005 Fabrice Bellard
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*
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* 2008 Generic packet handler rewrite by Max Krasnyansky
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "qemu-common.h" |
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#include "hw/usb.h" |
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#include "iov.h" |
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#include "trace.h" |
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void usb_attach(USBPort *port)
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{ |
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USBDevice *dev = port->dev; |
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assert(dev != NULL);
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assert(dev->attached); |
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assert(dev->state == USB_STATE_NOTATTACHED); |
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port->ops->attach(port); |
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dev->state = USB_STATE_ATTACHED; |
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usb_device_handle_attach(dev); |
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} |
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|
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void usb_detach(USBPort *port)
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{ |
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USBDevice *dev = port->dev; |
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assert(dev != NULL);
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assert(dev->state != USB_STATE_NOTATTACHED); |
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port->ops->detach(port); |
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dev->state = USB_STATE_NOTATTACHED; |
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} |
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|
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void usb_port_reset(USBPort *port)
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{ |
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USBDevice *dev = port->dev; |
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assert(dev != NULL);
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usb_detach(port); |
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usb_attach(port); |
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usb_device_reset(dev); |
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} |
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|
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void usb_device_reset(USBDevice *dev)
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{ |
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if (dev == NULL || !dev->attached) { |
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return;
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} |
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dev->remote_wakeup = 0;
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dev->addr = 0;
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dev->state = USB_STATE_DEFAULT; |
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usb_device_handle_reset(dev); |
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} |
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void usb_wakeup(USBEndpoint *ep)
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{ |
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USBDevice *dev = ep->dev; |
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USBBus *bus = usb_bus_from_device(dev); |
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if (dev->remote_wakeup && dev->port && dev->port->ops->wakeup) {
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dev->port->ops->wakeup(dev->port); |
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} |
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if (bus->ops->wakeup_endpoint) {
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bus->ops->wakeup_endpoint(bus, ep); |
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} |
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} |
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/**********************/
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/* generic USB device helpers (you are not forced to use them when
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writing your USB device driver, but they help handling the
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protocol)
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*/
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#define SETUP_STATE_IDLE 0 |
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#define SETUP_STATE_SETUP 1 |
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#define SETUP_STATE_DATA 2 |
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#define SETUP_STATE_ACK 3 |
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#define SETUP_STATE_PARAM 4 |
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|
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static int do_token_setup(USBDevice *s, USBPacket *p) |
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{ |
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int request, value, index;
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int ret = 0; |
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if (p->iov.size != 8) { |
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return USB_RET_STALL;
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} |
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usb_packet_copy(p, s->setup_buf, p->iov.size); |
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p->result = 0;
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s->setup_len = (s->setup_buf[7] << 8) | s->setup_buf[6]; |
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s->setup_index = 0;
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request = (s->setup_buf[0] << 8) | s->setup_buf[1]; |
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value = (s->setup_buf[3] << 8) | s->setup_buf[2]; |
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index = (s->setup_buf[5] << 8) | s->setup_buf[4]; |
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|
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if (s->setup_buf[0] & USB_DIR_IN) { |
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ret = usb_device_handle_control(s, p, request, value, index, |
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s->setup_len, s->data_buf); |
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if (ret == USB_RET_ASYNC) {
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s->setup_state = SETUP_STATE_SETUP; |
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return USB_RET_ASYNC;
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} |
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if (ret < 0) |
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return ret;
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if (ret < s->setup_len)
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s->setup_len = ret; |
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s->setup_state = SETUP_STATE_DATA; |
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} else {
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if (s->setup_len > sizeof(s->data_buf)) { |
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fprintf(stderr, |
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"usb_generic_handle_packet: ctrl buffer too small (%d > %zu)\n",
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s->setup_len, sizeof(s->data_buf));
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return USB_RET_STALL;
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} |
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if (s->setup_len == 0) |
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s->setup_state = SETUP_STATE_ACK; |
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else
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s->setup_state = SETUP_STATE_DATA; |
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} |
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return ret;
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} |
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static int do_token_in(USBDevice *s, USBPacket *p) |
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{ |
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int request, value, index;
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int ret = 0; |
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assert(p->ep->nr == 0);
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request = (s->setup_buf[0] << 8) | s->setup_buf[1]; |
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value = (s->setup_buf[3] << 8) | s->setup_buf[2]; |
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index = (s->setup_buf[5] << 8) | s->setup_buf[4]; |
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switch(s->setup_state) {
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case SETUP_STATE_ACK:
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if (!(s->setup_buf[0] & USB_DIR_IN)) { |
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ret = usb_device_handle_control(s, p, request, value, index, |
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s->setup_len, s->data_buf); |
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if (ret == USB_RET_ASYNC) {
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return USB_RET_ASYNC;
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} |
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s->setup_state = SETUP_STATE_IDLE; |
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if (ret > 0) |
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return 0; |
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return ret;
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} |
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/* return 0 byte */
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return 0; |
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case SETUP_STATE_DATA:
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if (s->setup_buf[0] & USB_DIR_IN) { |
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int len = s->setup_len - s->setup_index;
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if (len > p->iov.size) {
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len = p->iov.size; |
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} |
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usb_packet_copy(p, s->data_buf + s->setup_index, len); |
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s->setup_index += len; |
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if (s->setup_index >= s->setup_len)
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s->setup_state = SETUP_STATE_ACK; |
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return len;
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} |
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s->setup_state = SETUP_STATE_IDLE; |
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return USB_RET_STALL;
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default:
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return USB_RET_STALL;
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} |
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} |
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static int do_token_out(USBDevice *s, USBPacket *p) |
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{ |
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assert(p->ep->nr == 0);
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switch(s->setup_state) {
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case SETUP_STATE_ACK:
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if (s->setup_buf[0] & USB_DIR_IN) { |
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s->setup_state = SETUP_STATE_IDLE; |
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/* transfer OK */
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} else {
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/* ignore additional output */
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} |
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return 0; |
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case SETUP_STATE_DATA:
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if (!(s->setup_buf[0] & USB_DIR_IN)) { |
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int len = s->setup_len - s->setup_index;
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if (len > p->iov.size) {
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len = p->iov.size; |
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} |
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usb_packet_copy(p, s->data_buf + s->setup_index, len); |
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s->setup_index += len; |
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if (s->setup_index >= s->setup_len)
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s->setup_state = SETUP_STATE_ACK; |
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return len;
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} |
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s->setup_state = SETUP_STATE_IDLE; |
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return USB_RET_STALL;
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default:
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return USB_RET_STALL;
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} |
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} |
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static int do_parameter(USBDevice *s, USBPacket *p) |
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{ |
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int request, value, index;
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int i, ret = 0; |
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for (i = 0; i < 8; i++) { |
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s->setup_buf[i] = p->parameter >> (i*8);
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} |
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s->setup_state = SETUP_STATE_PARAM; |
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s->setup_len = (s->setup_buf[7] << 8) | s->setup_buf[6]; |
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s->setup_index = 0;
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request = (s->setup_buf[0] << 8) | s->setup_buf[1]; |
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value = (s->setup_buf[3] << 8) | s->setup_buf[2]; |
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index = (s->setup_buf[5] << 8) | s->setup_buf[4]; |
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if (s->setup_len > sizeof(s->data_buf)) { |
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fprintf(stderr, |
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"usb_generic_handle_packet: ctrl buffer too small (%d > %zu)\n",
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s->setup_len, sizeof(s->data_buf));
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return USB_RET_STALL;
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} |
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if (p->pid == USB_TOKEN_OUT) {
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usb_packet_copy(p, s->data_buf, s->setup_len); |
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} |
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ret = usb_device_handle_control(s, p, request, value, index, |
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s->setup_len, s->data_buf); |
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if (ret < 0) { |
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return ret;
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} |
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if (ret < s->setup_len) {
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s->setup_len = ret; |
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} |
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if (p->pid == USB_TOKEN_IN) {
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usb_packet_copy(p, s->data_buf, s->setup_len); |
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} |
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return ret;
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} |
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/* ctrl complete function for devices which use usb_generic_handle_packet and
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may return USB_RET_ASYNC from their handle_control callback. Device code
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which does this *must* call this function instead of the normal
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usb_packet_complete to complete their async control packets. */
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void usb_generic_async_ctrl_complete(USBDevice *s, USBPacket *p)
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{ |
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if (p->result < 0) { |
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s->setup_state = SETUP_STATE_IDLE; |
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} |
284 |
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switch (s->setup_state) {
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case SETUP_STATE_SETUP:
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if (p->result < s->setup_len) {
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s->setup_len = p->result; |
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} |
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s->setup_state = SETUP_STATE_DATA; |
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p->result = 8;
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break;
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case SETUP_STATE_ACK:
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s->setup_state = SETUP_STATE_IDLE; |
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p->result = 0;
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break;
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case SETUP_STATE_PARAM:
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if (p->result < s->setup_len) {
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s->setup_len = p->result; |
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} |
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if (p->pid == USB_TOKEN_IN) {
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p->result = 0;
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usb_packet_copy(p, s->data_buf, s->setup_len); |
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} |
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break;
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default:
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break;
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} |
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usb_packet_complete(s, p); |
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} |
314 |
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/* XXX: fix overflow */
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int set_usb_string(uint8_t *buf, const char *str) |
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{ |
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int len, i;
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uint8_t *q; |
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q = buf; |
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len = strlen(str); |
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*q++ = 2 * len + 2; |
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*q++ = 3;
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for(i = 0; i < len; i++) { |
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*q++ = str[i]; |
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*q++ = 0;
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} |
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return q - buf;
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} |
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USBDevice *usb_find_device(USBPort *port, uint8_t addr) |
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{ |
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USBDevice *dev = port->dev; |
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|
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if (dev == NULL || !dev->attached || dev->state != USB_STATE_DEFAULT) { |
337 |
return NULL; |
338 |
} |
339 |
if (dev->addr == addr) {
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return dev;
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} |
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return usb_device_find_device(dev, addr);
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} |
344 |
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static int usb_process_one(USBPacket *p) |
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{ |
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USBDevice *dev = p->ep->dev; |
348 |
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if (p->ep->nr == 0) { |
350 |
/* control pipe */
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if (p->parameter) {
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return do_parameter(dev, p);
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} |
354 |
switch (p->pid) {
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case USB_TOKEN_SETUP:
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return do_token_setup(dev, p);
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case USB_TOKEN_IN:
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358 |
return do_token_in(dev, p);
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359 |
case USB_TOKEN_OUT:
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360 |
return do_token_out(dev, p);
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default:
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return USB_RET_STALL;
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} |
364 |
} else {
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365 |
/* data pipe */
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return usb_device_handle_data(dev, p);
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} |
368 |
} |
369 |
|
370 |
/* Hand over a packet to a device for processing. Return value
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USB_RET_ASYNC indicates the processing isn't finished yet, the
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driver will call usb_packet_complete() when done processing it. */
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int usb_handle_packet(USBDevice *dev, USBPacket *p)
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{ |
375 |
int ret;
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376 |
|
377 |
if (dev == NULL) { |
378 |
return USB_RET_NODEV;
|
379 |
} |
380 |
assert(dev == p->ep->dev); |
381 |
assert(dev->state == USB_STATE_DEFAULT); |
382 |
usb_packet_check_state(p, USB_PACKET_SETUP); |
383 |
assert(p->ep != NULL);
|
384 |
|
385 |
/* Submitting a new packet clears halt */
|
386 |
if (p->ep->halted) {
|
387 |
assert(QTAILQ_EMPTY(&p->ep->queue)); |
388 |
p->ep->halted = false;
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389 |
} |
390 |
|
391 |
if (QTAILQ_EMPTY(&p->ep->queue) || p->ep->pipeline) {
|
392 |
ret = usb_process_one(p); |
393 |
if (ret == USB_RET_ASYNC) {
|
394 |
usb_packet_set_state(p, USB_PACKET_ASYNC); |
395 |
QTAILQ_INSERT_TAIL(&p->ep->queue, p, queue); |
396 |
} else if (ret == USB_RET_ADD_TO_QUEUE) { |
397 |
usb_packet_set_state(p, USB_PACKET_QUEUED); |
398 |
QTAILQ_INSERT_TAIL(&p->ep->queue, p, queue); |
399 |
ret = USB_RET_ASYNC; |
400 |
} else {
|
401 |
/*
|
402 |
* When pipelining is enabled usb-devices must always return async,
|
403 |
* otherwise packets can complete out of order!
|
404 |
*/
|
405 |
assert(!p->ep->pipeline || QTAILQ_EMPTY(&p->ep->queue)); |
406 |
if (ret != USB_RET_NAK) {
|
407 |
p->result = ret; |
408 |
usb_packet_set_state(p, USB_PACKET_COMPLETE); |
409 |
} |
410 |
} |
411 |
} else {
|
412 |
ret = USB_RET_ASYNC; |
413 |
usb_packet_set_state(p, USB_PACKET_QUEUED); |
414 |
QTAILQ_INSERT_TAIL(&p->ep->queue, p, queue); |
415 |
} |
416 |
return ret;
|
417 |
} |
418 |
|
419 |
void usb_packet_complete_one(USBDevice *dev, USBPacket *p)
|
420 |
{ |
421 |
USBEndpoint *ep = p->ep; |
422 |
|
423 |
assert(QTAILQ_FIRST(&ep->queue) == p); |
424 |
assert(p->result != USB_RET_ASYNC && p->result != USB_RET_NAK); |
425 |
|
426 |
if (p->result < 0) { |
427 |
ep->halted = true;
|
428 |
} |
429 |
usb_packet_set_state(p, USB_PACKET_COMPLETE); |
430 |
QTAILQ_REMOVE(&ep->queue, p, queue); |
431 |
dev->port->ops->complete(dev->port, p); |
432 |
} |
433 |
|
434 |
/* Notify the controller that an async packet is complete. This should only
|
435 |
be called for packets previously deferred by returning USB_RET_ASYNC from
|
436 |
handle_packet. */
|
437 |
void usb_packet_complete(USBDevice *dev, USBPacket *p)
|
438 |
{ |
439 |
USBEndpoint *ep = p->ep; |
440 |
int ret;
|
441 |
|
442 |
usb_packet_check_state(p, USB_PACKET_ASYNC); |
443 |
usb_packet_complete_one(dev, p); |
444 |
|
445 |
while (!QTAILQ_EMPTY(&ep->queue)) {
|
446 |
p = QTAILQ_FIRST(&ep->queue); |
447 |
if (ep->halted) {
|
448 |
/* Empty the queue on a halt */
|
449 |
p->result = USB_RET_REMOVE_FROM_QUEUE; |
450 |
dev->port->ops->complete(dev->port, p); |
451 |
continue;
|
452 |
} |
453 |
if (p->state == USB_PACKET_ASYNC) {
|
454 |
break;
|
455 |
} |
456 |
usb_packet_check_state(p, USB_PACKET_QUEUED); |
457 |
ret = usb_process_one(p); |
458 |
if (ret == USB_RET_ASYNC) {
|
459 |
usb_packet_set_state(p, USB_PACKET_ASYNC); |
460 |
break;
|
461 |
} |
462 |
p->result = ret; |
463 |
usb_packet_complete_one(ep->dev, p); |
464 |
} |
465 |
} |
466 |
|
467 |
/* Cancel an active packet. The packed must have been deferred by
|
468 |
returning USB_RET_ASYNC from handle_packet, and not yet
|
469 |
completed. */
|
470 |
void usb_cancel_packet(USBPacket * p)
|
471 |
{ |
472 |
bool callback = (p->state == USB_PACKET_ASYNC);
|
473 |
assert(usb_packet_is_inflight(p)); |
474 |
usb_packet_set_state(p, USB_PACKET_CANCELED); |
475 |
QTAILQ_REMOVE(&p->ep->queue, p, queue); |
476 |
if (callback) {
|
477 |
usb_device_cancel_packet(p->ep->dev, p); |
478 |
} |
479 |
} |
480 |
|
481 |
|
482 |
void usb_packet_init(USBPacket *p)
|
483 |
{ |
484 |
qemu_iovec_init(&p->iov, 1);
|
485 |
} |
486 |
|
487 |
static const char *usb_packet_state_name(USBPacketState state) |
488 |
{ |
489 |
static const char *name[] = { |
490 |
[USB_PACKET_UNDEFINED] = "undef",
|
491 |
[USB_PACKET_SETUP] = "setup",
|
492 |
[USB_PACKET_QUEUED] = "queued",
|
493 |
[USB_PACKET_ASYNC] = "async",
|
494 |
[USB_PACKET_COMPLETE] = "complete",
|
495 |
[USB_PACKET_CANCELED] = "canceled",
|
496 |
}; |
497 |
if (state < ARRAY_SIZE(name)) {
|
498 |
return name[state];
|
499 |
} |
500 |
return "INVALID"; |
501 |
} |
502 |
|
503 |
void usb_packet_check_state(USBPacket *p, USBPacketState expected)
|
504 |
{ |
505 |
USBDevice *dev; |
506 |
USBBus *bus; |
507 |
|
508 |
if (p->state == expected) {
|
509 |
return;
|
510 |
} |
511 |
dev = p->ep->dev; |
512 |
bus = usb_bus_from_device(dev); |
513 |
trace_usb_packet_state_fault(bus->busnr, dev->port->path, p->ep->nr, p, |
514 |
usb_packet_state_name(p->state), |
515 |
usb_packet_state_name(expected)); |
516 |
assert(!"usb packet state check failed");
|
517 |
} |
518 |
|
519 |
void usb_packet_set_state(USBPacket *p, USBPacketState state)
|
520 |
{ |
521 |
if (p->ep) {
|
522 |
USBDevice *dev = p->ep->dev; |
523 |
USBBus *bus = usb_bus_from_device(dev); |
524 |
trace_usb_packet_state_change(bus->busnr, dev->port->path, p->ep->nr, p, |
525 |
usb_packet_state_name(p->state), |
526 |
usb_packet_state_name(state)); |
527 |
} else {
|
528 |
trace_usb_packet_state_change(-1, "", -1, p, |
529 |
usb_packet_state_name(p->state), |
530 |
usb_packet_state_name(state)); |
531 |
} |
532 |
p->state = state; |
533 |
} |
534 |
|
535 |
void usb_packet_setup(USBPacket *p, int pid, USBEndpoint *ep, uint64_t id) |
536 |
{ |
537 |
assert(!usb_packet_is_inflight(p)); |
538 |
assert(p->iov.iov != NULL);
|
539 |
p->id = id; |
540 |
p->pid = pid; |
541 |
p->ep = ep; |
542 |
p->result = 0;
|
543 |
p->parameter = 0;
|
544 |
qemu_iovec_reset(&p->iov); |
545 |
usb_packet_set_state(p, USB_PACKET_SETUP); |
546 |
} |
547 |
|
548 |
void usb_packet_addbuf(USBPacket *p, void *ptr, size_t len) |
549 |
{ |
550 |
qemu_iovec_add(&p->iov, ptr, len); |
551 |
} |
552 |
|
553 |
void usb_packet_copy(USBPacket *p, void *ptr, size_t bytes) |
554 |
{ |
555 |
assert(p->result >= 0);
|
556 |
assert(p->result + bytes <= p->iov.size); |
557 |
switch (p->pid) {
|
558 |
case USB_TOKEN_SETUP:
|
559 |
case USB_TOKEN_OUT:
|
560 |
iov_to_buf(p->iov.iov, p->iov.niov, p->result, ptr, bytes); |
561 |
break;
|
562 |
case USB_TOKEN_IN:
|
563 |
iov_from_buf(p->iov.iov, p->iov.niov, p->result, ptr, bytes); |
564 |
break;
|
565 |
default:
|
566 |
fprintf(stderr, "%s: invalid pid: %x\n", __func__, p->pid);
|
567 |
abort(); |
568 |
} |
569 |
p->result += bytes; |
570 |
} |
571 |
|
572 |
void usb_packet_skip(USBPacket *p, size_t bytes)
|
573 |
{ |
574 |
assert(p->result >= 0);
|
575 |
assert(p->result + bytes <= p->iov.size); |
576 |
if (p->pid == USB_TOKEN_IN) {
|
577 |
iov_memset(p->iov.iov, p->iov.niov, p->result, 0, bytes);
|
578 |
} |
579 |
p->result += bytes; |
580 |
} |
581 |
|
582 |
void usb_packet_cleanup(USBPacket *p)
|
583 |
{ |
584 |
assert(!usb_packet_is_inflight(p)); |
585 |
qemu_iovec_destroy(&p->iov); |
586 |
} |
587 |
|
588 |
void usb_ep_reset(USBDevice *dev)
|
589 |
{ |
590 |
int ep;
|
591 |
|
592 |
dev->ep_ctl.nr = 0;
|
593 |
dev->ep_ctl.type = USB_ENDPOINT_XFER_CONTROL; |
594 |
dev->ep_ctl.ifnum = 0;
|
595 |
dev->ep_ctl.dev = dev; |
596 |
dev->ep_ctl.pipeline = false;
|
597 |
for (ep = 0; ep < USB_MAX_ENDPOINTS; ep++) { |
598 |
dev->ep_in[ep].nr = ep + 1;
|
599 |
dev->ep_out[ep].nr = ep + 1;
|
600 |
dev->ep_in[ep].pid = USB_TOKEN_IN; |
601 |
dev->ep_out[ep].pid = USB_TOKEN_OUT; |
602 |
dev->ep_in[ep].type = USB_ENDPOINT_XFER_INVALID; |
603 |
dev->ep_out[ep].type = USB_ENDPOINT_XFER_INVALID; |
604 |
dev->ep_in[ep].ifnum = USB_INTERFACE_INVALID; |
605 |
dev->ep_out[ep].ifnum = USB_INTERFACE_INVALID; |
606 |
dev->ep_in[ep].dev = dev; |
607 |
dev->ep_out[ep].dev = dev; |
608 |
dev->ep_in[ep].pipeline = false;
|
609 |
dev->ep_out[ep].pipeline = false;
|
610 |
} |
611 |
} |
612 |
|
613 |
void usb_ep_init(USBDevice *dev)
|
614 |
{ |
615 |
int ep;
|
616 |
|
617 |
usb_ep_reset(dev); |
618 |
QTAILQ_INIT(&dev->ep_ctl.queue); |
619 |
for (ep = 0; ep < USB_MAX_ENDPOINTS; ep++) { |
620 |
QTAILQ_INIT(&dev->ep_in[ep].queue); |
621 |
QTAILQ_INIT(&dev->ep_out[ep].queue); |
622 |
} |
623 |
} |
624 |
|
625 |
void usb_ep_dump(USBDevice *dev)
|
626 |
{ |
627 |
static const char *tname[] = { |
628 |
[USB_ENDPOINT_XFER_CONTROL] = "control",
|
629 |
[USB_ENDPOINT_XFER_ISOC] = "isoc",
|
630 |
[USB_ENDPOINT_XFER_BULK] = "bulk",
|
631 |
[USB_ENDPOINT_XFER_INT] = "int",
|
632 |
}; |
633 |
int ifnum, ep, first;
|
634 |
|
635 |
fprintf(stderr, "Device \"%s\", config %d\n",
|
636 |
dev->product_desc, dev->configuration); |
637 |
for (ifnum = 0; ifnum < 16; ifnum++) { |
638 |
first = 1;
|
639 |
for (ep = 0; ep < USB_MAX_ENDPOINTS; ep++) { |
640 |
if (dev->ep_in[ep].type != USB_ENDPOINT_XFER_INVALID &&
|
641 |
dev->ep_in[ep].ifnum == ifnum) { |
642 |
if (first) {
|
643 |
first = 0;
|
644 |
fprintf(stderr, " Interface %d, alternative %d\n",
|
645 |
ifnum, dev->altsetting[ifnum]); |
646 |
} |
647 |
fprintf(stderr, " Endpoint %d, IN, %s, %d max\n", ep,
|
648 |
tname[dev->ep_in[ep].type], |
649 |
dev->ep_in[ep].max_packet_size); |
650 |
} |
651 |
if (dev->ep_out[ep].type != USB_ENDPOINT_XFER_INVALID &&
|
652 |
dev->ep_out[ep].ifnum == ifnum) { |
653 |
if (first) {
|
654 |
first = 0;
|
655 |
fprintf(stderr, " Interface %d, alternative %d\n",
|
656 |
ifnum, dev->altsetting[ifnum]); |
657 |
} |
658 |
fprintf(stderr, " Endpoint %d, OUT, %s, %d max\n", ep,
|
659 |
tname[dev->ep_out[ep].type], |
660 |
dev->ep_out[ep].max_packet_size); |
661 |
} |
662 |
} |
663 |
} |
664 |
fprintf(stderr, "--\n");
|
665 |
} |
666 |
|
667 |
struct USBEndpoint *usb_ep_get(USBDevice *dev, int pid, int ep) |
668 |
{ |
669 |
struct USBEndpoint *eps;
|
670 |
|
671 |
if (dev == NULL) { |
672 |
return NULL; |
673 |
} |
674 |
eps = (pid == USB_TOKEN_IN) ? dev->ep_in : dev->ep_out; |
675 |
if (ep == 0) { |
676 |
return &dev->ep_ctl;
|
677 |
} |
678 |
assert(pid == USB_TOKEN_IN || pid == USB_TOKEN_OUT); |
679 |
assert(ep > 0 && ep <= USB_MAX_ENDPOINTS);
|
680 |
return eps + ep - 1; |
681 |
} |
682 |
|
683 |
uint8_t usb_ep_get_type(USBDevice *dev, int pid, int ep) |
684 |
{ |
685 |
struct USBEndpoint *uep = usb_ep_get(dev, pid, ep);
|
686 |
return uep->type;
|
687 |
} |
688 |
|
689 |
void usb_ep_set_type(USBDevice *dev, int pid, int ep, uint8_t type) |
690 |
{ |
691 |
struct USBEndpoint *uep = usb_ep_get(dev, pid, ep);
|
692 |
uep->type = type; |
693 |
} |
694 |
|
695 |
uint8_t usb_ep_get_ifnum(USBDevice *dev, int pid, int ep) |
696 |
{ |
697 |
struct USBEndpoint *uep = usb_ep_get(dev, pid, ep);
|
698 |
return uep->ifnum;
|
699 |
} |
700 |
|
701 |
void usb_ep_set_ifnum(USBDevice *dev, int pid, int ep, uint8_t ifnum) |
702 |
{ |
703 |
struct USBEndpoint *uep = usb_ep_get(dev, pid, ep);
|
704 |
uep->ifnum = ifnum; |
705 |
} |
706 |
|
707 |
void usb_ep_set_max_packet_size(USBDevice *dev, int pid, int ep, |
708 |
uint16_t raw) |
709 |
{ |
710 |
struct USBEndpoint *uep = usb_ep_get(dev, pid, ep);
|
711 |
int size, microframes;
|
712 |
|
713 |
size = raw & 0x7ff;
|
714 |
switch ((raw >> 11) & 3) { |
715 |
case 1: |
716 |
microframes = 2;
|
717 |
break;
|
718 |
case 2: |
719 |
microframes = 3;
|
720 |
break;
|
721 |
default:
|
722 |
microframes = 1;
|
723 |
break;
|
724 |
} |
725 |
uep->max_packet_size = size * microframes; |
726 |
} |
727 |
|
728 |
int usb_ep_get_max_packet_size(USBDevice *dev, int pid, int ep) |
729 |
{ |
730 |
struct USBEndpoint *uep = usb_ep_get(dev, pid, ep);
|
731 |
return uep->max_packet_size;
|
732 |
} |
733 |
|
734 |
void usb_ep_set_pipeline(USBDevice *dev, int pid, int ep, bool enabled) |
735 |
{ |
736 |
struct USBEndpoint *uep = usb_ep_get(dev, pid, ep);
|
737 |
uep->pipeline = enabled; |
738 |
} |
739 |
|
740 |
USBPacket *usb_ep_find_packet_by_id(USBDevice *dev, int pid, int ep, |
741 |
uint64_t id) |
742 |
{ |
743 |
struct USBEndpoint *uep = usb_ep_get(dev, pid, ep);
|
744 |
USBPacket *p; |
745 |
|
746 |
while ((p = QTAILQ_FIRST(&uep->queue)) != NULL) { |
747 |
if (p->id == id) {
|
748 |
return p;
|
749 |
} |
750 |
} |
751 |
|
752 |
return NULL; |
753 |
} |