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/*
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* BSD host USB redirector
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*
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* Copyright (c) 2006 Lonnie Mendez
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* Portions of code and concepts borrowed from
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* usb-linux.c and libusb's bsd.c and are copyright their respective owners.
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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 "console.h" |
29 |
#include "hw/usb.h" |
30 |
|
31 |
/* usb.h declares these */
|
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#undef USB_SPEED_HIGH
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#undef USB_SPEED_FULL
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#undef USB_SPEED_LOW
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|
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#include <sys/ioctl.h> |
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#include <dev/usb/usb.h> |
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#include <signal.h> |
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|
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/* This value has maximum potential at 16.
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* You should also set hw.usb.debug to gain
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* more detailed view.
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*/
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//#define DEBUG
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#define UGEN_DEBUG_LEVEL 0 |
46 |
|
47 |
|
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typedef int USBScanFunc(void *opaque, int bus_num, int addr, int class_id, |
49 |
int vendor_id, int product_id, |
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const char *product_name, int speed); |
51 |
static int usb_host_find_device(int *pbus_num, int *paddr, |
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const char *devname); |
53 |
|
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typedef struct USBHostDevice { |
55 |
USBDevice dev; |
56 |
int ep_fd[USB_MAX_ENDPOINTS];
|
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int devfd;
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char devpath[32]; |
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} USBHostDevice; |
60 |
|
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|
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static int ensure_ep_open(USBHostDevice *dev, int ep, int mode) |
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{ |
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char buf[32]; |
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int fd;
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|
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/* Get the address for this endpoint */
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ep = UE_GET_ADDR(ep); |
69 |
|
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if (dev->ep_fd[ep] < 0) { |
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#ifdef __FreeBSD__
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snprintf(buf, sizeof(buf) - 1, "%s.%d", dev->devpath, ep); |
73 |
#else
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snprintf(buf, sizeof(buf) - 1, "%s.%02d", dev->devpath, ep); |
75 |
#endif
|
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/* Try to open it O_RDWR first for those devices which have in and out
|
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* endpoints with the same address (eg 0x02 and 0x82)
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*/
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fd = open(buf, O_RDWR); |
80 |
if (fd < 0 && errno == ENXIO) |
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fd = open(buf, mode); |
82 |
if (fd < 0) { |
83 |
#ifdef DEBUG
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printf("ensure_ep_open: failed to open device endpoint %s: %s\n",
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buf, strerror(errno)); |
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#endif
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} |
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dev->ep_fd[ep] = fd; |
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} |
90 |
|
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return dev->ep_fd[ep];
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} |
93 |
|
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static void ensure_eps_closed(USBHostDevice *dev) |
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{ |
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int epnum = 1; |
97 |
|
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if (!dev)
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return;
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100 |
|
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while (epnum < USB_MAX_ENDPOINTS) {
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if (dev->ep_fd[epnum] >= 0) { |
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close(dev->ep_fd[epnum]); |
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dev->ep_fd[epnum] = -1;
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} |
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epnum++; |
107 |
} |
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} |
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|
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static void usb_host_handle_reset(USBDevice *dev) |
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{ |
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#if 0
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USBHostDevice *s = (USBHostDevice *)dev;
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#endif
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} |
116 |
|
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/* XXX:
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* -check device states against transfer requests
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* and return appropriate response
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*/
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static int usb_host_handle_control(USBDevice *dev, |
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int request,
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int value,
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int index,
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int length,
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uint8_t *data) |
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{ |
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USBHostDevice *s = (USBHostDevice *)dev; |
129 |
struct usb_ctl_request req;
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struct usb_alt_interface aiface;
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int ret, timeout = 50; |
132 |
|
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if ((request >> 8) == UT_WRITE_DEVICE && |
134 |
(request & 0xff) == UR_SET_ADDRESS) {
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|
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/* specific SET_ADDRESS support */
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dev->addr = value; |
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return 0; |
139 |
} else if ((request >> 8) == UT_WRITE_DEVICE && |
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(request & 0xff) == UR_SET_CONFIG) {
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|
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ensure_eps_closed(s); /* can't do this without all eps closed */
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|
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ret = ioctl(s->devfd, USB_SET_CONFIG, &value); |
145 |
if (ret < 0) { |
146 |
#ifdef DEBUG
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printf("handle_control: failed to set configuration - %s\n",
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strerror(errno)); |
149 |
#endif
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return USB_RET_STALL;
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} |
152 |
|
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return 0; |
154 |
} else if ((request >> 8) == UT_WRITE_INTERFACE && |
155 |
(request & 0xff) == UR_SET_INTERFACE) {
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156 |
|
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aiface.uai_interface_index = index; |
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aiface.uai_alt_no = value; |
159 |
|
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ensure_eps_closed(s); /* can't do this without all eps closed */
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ret = ioctl(s->devfd, USB_SET_ALTINTERFACE, &aiface); |
162 |
if (ret < 0) { |
163 |
#ifdef DEBUG
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printf("handle_control: failed to set alternate interface - %s\n",
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strerror(errno)); |
166 |
#endif
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return USB_RET_STALL;
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} |
169 |
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return 0; |
171 |
} else {
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req.ucr_request.bmRequestType = request >> 8;
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req.ucr_request.bRequest = request & 0xff;
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USETW(req.ucr_request.wValue, value); |
175 |
USETW(req.ucr_request.wIndex, index); |
176 |
USETW(req.ucr_request.wLength, length); |
177 |
req.ucr_data = data; |
178 |
req.ucr_flags = USBD_SHORT_XFER_OK; |
179 |
|
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ret = ioctl(s->devfd, USB_SET_TIMEOUT, &timeout); |
181 |
#if (__NetBSD__ || __OpenBSD__)
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182 |
if (ret < 0 && errno != EINVAL) { |
183 |
#else
|
184 |
if (ret < 0) { |
185 |
#endif
|
186 |
#ifdef DEBUG
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printf("handle_control: setting timeout failed - %s\n",
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strerror(errno)); |
189 |
#endif
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} |
191 |
|
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ret = ioctl(s->devfd, USB_DO_REQUEST, &req); |
193 |
/* ugen returns EIO for usbd_do_request_ no matter what
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* happens with the transfer */
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195 |
if (ret < 0) { |
196 |
#ifdef DEBUG
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printf("handle_control: error after request - %s\n",
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strerror(errno)); |
199 |
#endif
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return USB_RET_NAK; // STALL |
201 |
} else {
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return req.ucr_actlen;
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} |
204 |
} |
205 |
} |
206 |
|
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static int usb_host_handle_data(USBDevice *dev, USBPacket *p) |
208 |
{ |
209 |
USBHostDevice *s = (USBHostDevice *)dev; |
210 |
int ret, fd, mode;
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int one = 1, shortpacket = 0, timeout = 50; |
212 |
sigset_t new_mask, old_mask; |
213 |
uint8_t devep = p->devep; |
214 |
|
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/* protect data transfers from SIGALRM signal */
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sigemptyset(&new_mask); |
217 |
sigaddset(&new_mask, SIGALRM); |
218 |
sigprocmask(SIG_BLOCK, &new_mask, &old_mask); |
219 |
|
220 |
if (p->pid == USB_TOKEN_IN) {
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221 |
devep |= 0x80;
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mode = O_RDONLY; |
223 |
shortpacket = 1;
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224 |
} else {
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225 |
mode = O_WRONLY; |
226 |
} |
227 |
|
228 |
fd = ensure_ep_open(s, devep, mode); |
229 |
if (fd < 0) { |
230 |
sigprocmask(SIG_SETMASK, &old_mask, NULL);
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return USB_RET_NODEV;
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232 |
} |
233 |
|
234 |
if (ioctl(fd, USB_SET_TIMEOUT, &timeout) < 0) { |
235 |
#ifdef DEBUG
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printf("handle_data: failed to set timeout - %s\n",
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237 |
strerror(errno)); |
238 |
#endif
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239 |
} |
240 |
|
241 |
if (shortpacket) {
|
242 |
if (ioctl(fd, USB_SET_SHORT_XFER, &one) < 0) { |
243 |
#ifdef DEBUG
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244 |
printf("handle_data: failed to set short xfer mode - %s\n",
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strerror(errno)); |
246 |
#endif
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247 |
sigprocmask(SIG_SETMASK, &old_mask, NULL);
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248 |
} |
249 |
} |
250 |
|
251 |
if (p->pid == USB_TOKEN_IN)
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252 |
ret = read(fd, p->data, p->len); |
253 |
else
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ret = write(fd, p->data, p->len); |
255 |
|
256 |
sigprocmask(SIG_SETMASK, &old_mask, NULL);
|
257 |
|
258 |
if (ret < 0) { |
259 |
#ifdef DEBUG
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260 |
printf("handle_data: error after %s data - %s\n",
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pid == USB_TOKEN_IN ? "reading" : "writing", strerror(errno)); |
262 |
#endif
|
263 |
switch(errno) {
|
264 |
case ETIMEDOUT:
|
265 |
case EINTR:
|
266 |
return USB_RET_NAK;
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267 |
default:
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268 |
return USB_RET_STALL;
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269 |
} |
270 |
} else {
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271 |
return ret;
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272 |
} |
273 |
} |
274 |
|
275 |
static void usb_host_handle_destroy(USBDevice *opaque) |
276 |
{ |
277 |
USBHostDevice *s = (USBHostDevice *)opaque; |
278 |
int i;
|
279 |
|
280 |
for (i = 0; i < USB_MAX_ENDPOINTS; i++) |
281 |
if (s->ep_fd[i] >= 0) |
282 |
close(s->ep_fd[i]); |
283 |
|
284 |
if (s->devfd < 0) |
285 |
return;
|
286 |
|
287 |
close(s->devfd); |
288 |
|
289 |
qemu_free(s); |
290 |
} |
291 |
|
292 |
USBDevice *usb_host_device_open(const char *devname) |
293 |
{ |
294 |
struct usb_device_info bus_info, dev_info;
|
295 |
USBHostDevice *dev; |
296 |
char ctlpath[PATH_MAX + 1]; |
297 |
char buspath[PATH_MAX + 1]; |
298 |
int bfd, dfd, bus, address, i;
|
299 |
int ugendebug = UGEN_DEBUG_LEVEL;
|
300 |
|
301 |
if (usb_host_find_device(&bus, &address, devname) < 0) |
302 |
return NULL; |
303 |
|
304 |
snprintf(buspath, PATH_MAX, "/dev/usb%d", bus);
|
305 |
|
306 |
bfd = open(buspath, O_RDWR); |
307 |
if (bfd < 0) { |
308 |
#ifdef DEBUG
|
309 |
printf("usb_host_device_open: failed to open usb bus - %s\n",
|
310 |
strerror(errno)); |
311 |
#endif
|
312 |
return NULL; |
313 |
} |
314 |
|
315 |
bus_info.udi_addr = address; |
316 |
if (ioctl(bfd, USB_DEVICEINFO, &bus_info) < 0) { |
317 |
#ifdef DEBUG
|
318 |
printf("usb_host_device_open: failed to grab bus information - %s\n",
|
319 |
strerror(errno)); |
320 |
#endif
|
321 |
return NULL; |
322 |
} |
323 |
|
324 |
#ifdef __FreeBSD__
|
325 |
snprintf(ctlpath, PATH_MAX, "/dev/%s", bus_info.udi_devnames[0]); |
326 |
#else
|
327 |
snprintf(ctlpath, PATH_MAX, "/dev/%s.00", bus_info.udi_devnames[0]); |
328 |
#endif
|
329 |
|
330 |
dfd = open(ctlpath, O_RDWR); |
331 |
if (dfd < 0) { |
332 |
dfd = open(ctlpath, O_RDONLY); |
333 |
if (dfd < 0) { |
334 |
#ifdef DEBUG
|
335 |
printf("usb_host_device_open: failed to open usb device %s - %s\n",
|
336 |
ctlpath, strerror(errno)); |
337 |
#endif
|
338 |
} |
339 |
} |
340 |
|
341 |
if (dfd >= 0) { |
342 |
dev = qemu_mallocz(sizeof(USBHostDevice));
|
343 |
if (!dev)
|
344 |
goto fail;
|
345 |
dev->devfd = dfd; |
346 |
|
347 |
if (ioctl(dfd, USB_GET_DEVICEINFO, &dev_info) < 0) { |
348 |
#ifdef DEBUG
|
349 |
printf("usb_host_device_open: failed to grab device info - %s\n",
|
350 |
strerror(errno)); |
351 |
#endif
|
352 |
goto fail;
|
353 |
} |
354 |
|
355 |
if (dev_info.udi_speed == 1) |
356 |
dev->dev.speed = USB_SPEED_LOW - 1;
|
357 |
else
|
358 |
dev->dev.speed = USB_SPEED_FULL - 1;
|
359 |
|
360 |
dev->dev.handle_packet = usb_generic_handle_packet; |
361 |
|
362 |
dev->dev.handle_reset = usb_host_handle_reset; |
363 |
dev->dev.handle_control = usb_host_handle_control; |
364 |
dev->dev.handle_data = usb_host_handle_data; |
365 |
dev->dev.handle_destroy = usb_host_handle_destroy; |
366 |
|
367 |
if (strncmp(dev_info.udi_product, "product", 7) != 0) |
368 |
pstrcpy(dev->dev.devname, sizeof(dev->dev.devname),
|
369 |
dev_info.udi_product); |
370 |
else
|
371 |
snprintf(dev->dev.devname, sizeof(dev->dev.devname),
|
372 |
"host:%s", devname);
|
373 |
|
374 |
pstrcpy(dev->devpath, sizeof(dev->devpath), "/dev/"); |
375 |
strcat(dev->devpath, dev_info.udi_devnames[0]);
|
376 |
|
377 |
/* Mark the endpoints as not yet open */
|
378 |
for (i = 0; i < USB_MAX_ENDPOINTS; i++) |
379 |
dev->ep_fd[i] = -1;
|
380 |
|
381 |
ioctl(dfd, USB_SETDEBUG, &ugendebug); |
382 |
|
383 |
return (USBDevice *)dev;
|
384 |
} |
385 |
|
386 |
fail:
|
387 |
return NULL; |
388 |
} |
389 |
|
390 |
static int usb_host_scan(void *opaque, USBScanFunc *func) |
391 |
{ |
392 |
struct usb_device_info bus_info;
|
393 |
struct usb_device_info dev_info;
|
394 |
uint16_t vendor_id, product_id, class_id, speed; |
395 |
int bfd, dfd, bus, address;
|
396 |
char busbuf[20], devbuf[20], product_name[256]; |
397 |
int ret = 0; |
398 |
|
399 |
for (bus = 0; bus < 10; bus++) { |
400 |
|
401 |
snprintf(busbuf, sizeof(busbuf) - 1, "/dev/usb%d", bus); |
402 |
bfd = open(busbuf, O_RDWR); |
403 |
if (bfd < 0) |
404 |
continue;
|
405 |
|
406 |
for (address = 1; address < 127; address++) { |
407 |
|
408 |
bus_info.udi_addr = address; |
409 |
if (ioctl(bfd, USB_DEVICEINFO, &bus_info) < 0) |
410 |
continue;
|
411 |
|
412 |
/* only list devices that can be used by generic layer */
|
413 |
if (strncmp(bus_info.udi_devnames[0], "ugen", 4) != 0) |
414 |
continue;
|
415 |
|
416 |
#ifdef __FreeBSD__
|
417 |
snprintf(devbuf, sizeof(devbuf) - 1, "/dev/%s", bus_info.udi_devnames[0]); |
418 |
#else
|
419 |
snprintf(devbuf, sizeof(devbuf) - 1, "/dev/%s.00", bus_info.udi_devnames[0]); |
420 |
#endif
|
421 |
|
422 |
dfd = open(devbuf, O_RDONLY); |
423 |
if (dfd < 0) { |
424 |
#ifdef DEBUG
|
425 |
printf("usb_host_scan: couldn't open device %s - %s\n", devbuf,
|
426 |
strerror(errno)); |
427 |
#endif
|
428 |
continue;
|
429 |
} |
430 |
|
431 |
if (ioctl(dfd, USB_GET_DEVICEINFO, &dev_info) < 0) |
432 |
printf("usb_host_scan: couldn't get device information for %s - %s\n",
|
433 |
devbuf, strerror(errno)); |
434 |
|
435 |
// XXX: might need to fixup endianess of word values before copying over
|
436 |
|
437 |
vendor_id = dev_info.udi_vendorNo; |
438 |
product_id = dev_info.udi_productNo; |
439 |
class_id = dev_info.udi_class; |
440 |
speed = dev_info.udi_speed; |
441 |
|
442 |
if (strncmp(dev_info.udi_product, "product", 7) != 0) |
443 |
pstrcpy(product_name, sizeof(product_name),
|
444 |
dev_info.udi_product); |
445 |
else
|
446 |
product_name[0] = '\0'; |
447 |
|
448 |
ret = func(opaque, bus, address, class_id, vendor_id, |
449 |
product_id, product_name, speed); |
450 |
|
451 |
close(dfd); |
452 |
|
453 |
if (ret)
|
454 |
goto the_end;
|
455 |
} |
456 |
|
457 |
close(bfd); |
458 |
} |
459 |
|
460 |
the_end:
|
461 |
return ret;
|
462 |
} |
463 |
|
464 |
typedef struct FindDeviceState { |
465 |
int vendor_id;
|
466 |
int product_id;
|
467 |
int bus_num;
|
468 |
int addr;
|
469 |
} FindDeviceState; |
470 |
|
471 |
static int usb_host_find_device_scan(void *opaque, int bus_num, int addr, |
472 |
int class_id,
|
473 |
int vendor_id, int product_id, |
474 |
const char *product_name, int speed) |
475 |
{ |
476 |
FindDeviceState *s = opaque; |
477 |
if (vendor_id == s->vendor_id &&
|
478 |
product_id == s->product_id) { |
479 |
s->bus_num = bus_num; |
480 |
s->addr = addr; |
481 |
return 1; |
482 |
} else {
|
483 |
return 0; |
484 |
} |
485 |
} |
486 |
|
487 |
|
488 |
/* the syntax is :
|
489 |
'bus.addr' (decimal numbers) or
|
490 |
'vendor_id:product_id' (hexa numbers) */
|
491 |
static int usb_host_find_device(int *pbus_num, int *paddr, |
492 |
const char *devname) |
493 |
{ |
494 |
const char *p; |
495 |
int ret;
|
496 |
FindDeviceState fs; |
497 |
|
498 |
p = strchr(devname, '.');
|
499 |
if (p) {
|
500 |
*pbus_num = strtoul(devname, NULL, 0); |
501 |
*paddr = strtoul(p + 1, NULL, 0); |
502 |
return 0; |
503 |
} |
504 |
p = strchr(devname, ':');
|
505 |
if (p) {
|
506 |
fs.vendor_id = strtoul(devname, NULL, 16); |
507 |
fs.product_id = strtoul(p + 1, NULL, 16); |
508 |
ret = usb_host_scan(&fs, usb_host_find_device_scan); |
509 |
if (ret) {
|
510 |
*pbus_num = fs.bus_num; |
511 |
*paddr = fs.addr; |
512 |
return 0; |
513 |
} |
514 |
} |
515 |
return -1; |
516 |
} |
517 |
|
518 |
/**********************/
|
519 |
/* USB host device info */
|
520 |
|
521 |
struct usb_class_info {
|
522 |
int class;
|
523 |
const char *class_name; |
524 |
}; |
525 |
|
526 |
static const struct usb_class_info usb_class_info[] = { |
527 |
{ USB_CLASS_AUDIO, "Audio"},
|
528 |
{ USB_CLASS_COMM, "Communication"},
|
529 |
{ USB_CLASS_HID, "HID"},
|
530 |
{ USB_CLASS_HUB, "Hub" },
|
531 |
{ USB_CLASS_PHYSICAL, "Physical" },
|
532 |
{ USB_CLASS_PRINTER, "Printer" },
|
533 |
{ USB_CLASS_MASS_STORAGE, "Storage" },
|
534 |
{ USB_CLASS_CDC_DATA, "Data" },
|
535 |
{ USB_CLASS_APP_SPEC, "Application Specific" },
|
536 |
{ USB_CLASS_VENDOR_SPEC, "Vendor Specific" },
|
537 |
{ USB_CLASS_STILL_IMAGE, "Still Image" },
|
538 |
{ USB_CLASS_CSCID, "Smart Card" },
|
539 |
{ USB_CLASS_CONTENT_SEC, "Content Security" },
|
540 |
{ -1, NULL } |
541 |
}; |
542 |
|
543 |
static const char *usb_class_str(uint8_t class) |
544 |
{ |
545 |
const struct usb_class_info *p; |
546 |
for (p = usb_class_info; p->class != -1; p++) { |
547 |
if (p->class == class)
|
548 |
break;
|
549 |
} |
550 |
return p->class_name;
|
551 |
} |
552 |
|
553 |
void usb_info_device(int bus_num, int addr, int class_id, |
554 |
int vendor_id, int product_id, |
555 |
const char *product_name, |
556 |
int speed)
|
557 |
{ |
558 |
const char *class_str, *speed_str; |
559 |
|
560 |
switch(speed) {
|
561 |
case USB_SPEED_LOW:
|
562 |
speed_str = "1.5";
|
563 |
break;
|
564 |
case USB_SPEED_FULL:
|
565 |
speed_str = "12";
|
566 |
break;
|
567 |
case USB_SPEED_HIGH:
|
568 |
speed_str = "480";
|
569 |
break;
|
570 |
default:
|
571 |
speed_str = "?";
|
572 |
break;
|
573 |
} |
574 |
|
575 |
term_printf(" Device %d.%d, speed %s Mb/s\n",
|
576 |
bus_num, addr, speed_str); |
577 |
class_str = usb_class_str(class_id); |
578 |
if (class_str)
|
579 |
term_printf(" %s:", class_str);
|
580 |
else
|
581 |
term_printf(" Class %02x:", class_id);
|
582 |
term_printf(" USB device %04x:%04x", vendor_id, product_id);
|
583 |
if (product_name[0] != '\0') |
584 |
term_printf(", %s", product_name);
|
585 |
term_printf("\n");
|
586 |
} |
587 |
|
588 |
static int usb_host_info_device(void *opaque, int bus_num, int addr, |
589 |
int class_id,
|
590 |
int vendor_id, int product_id, |
591 |
const char *product_name, |
592 |
int speed)
|
593 |
{ |
594 |
usb_info_device(bus_num, addr, class_id, vendor_id, product_id, |
595 |
product_name, speed); |
596 |
return 0; |
597 |
} |
598 |
|
599 |
void usb_host_info(void) |
600 |
{ |
601 |
usb_host_scan(NULL, usb_host_info_device);
|
602 |
} |
603 |
|
604 |
/* XXX add this */
|
605 |
int usb_host_device_close(const char *devname) |
606 |
{ |
607 |
return 0; |
608 |
} |