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/*
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* Linux host USB redirector
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*
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* Copyright (c) 2005 Fabrice Bellard
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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" |
25 |
#include "hw/usb.h" |
26 |
#include "console.h" |
27 |
|
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#if defined(__linux__)
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#include <dirent.h> |
30 |
#include <sys/ioctl.h> |
31 |
#include <linux/usbdevice_fs.h> |
32 |
#include <linux/version.h> |
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#include <signal.h> |
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|
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/* We redefine it to avoid version problems */
|
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struct usb_ctrltransfer {
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uint8_t bRequestType; |
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uint8_t bRequest; |
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uint16_t wValue; |
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uint16_t wIndex; |
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uint16_t wLength; |
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uint32_t timeout; |
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void *data;
|
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}; |
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|
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typedef int USBScanFunc(void *opaque, int bus_num, int addr, int class_id, |
47 |
int vendor_id, int product_id, |
48 |
const char *product_name, int speed); |
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static int usb_host_find_device(int *pbus_num, int *paddr, |
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char *product_name, int product_name_size, |
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const char *devname); |
52 |
|
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//#define DEBUG
|
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//#define DEBUG_ISOCH
|
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//#define USE_ASYNCIO
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|
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#define USBDEVFS_PATH "/proc/bus/usb" |
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#define PRODUCT_NAME_SZ 32 |
59 |
#define SIG_ISOCOMPLETE (SIGRTMIN+7) |
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#define MAX_ENDPOINTS 16 |
61 |
|
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struct sigaction sigact;
|
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|
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/* endpoint association data */
|
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struct endp_data {
|
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uint8_t type; |
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}; |
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|
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/* FIXME: move USBPacket to PendingURB */
|
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typedef struct USBHostDevice { |
71 |
USBDevice dev; |
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int fd;
|
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int pipe_fds[2]; |
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USBPacket *packet; |
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struct endp_data endp_table[MAX_ENDPOINTS];
|
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int configuration;
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uint8_t descr[1024];
|
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int descr_len;
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int urbs_ready;
|
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} USBHostDevice; |
81 |
|
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typedef struct PendingURB { |
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struct usbdevfs_urb *urb;
|
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int status;
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struct PendingURB *next;
|
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} PendingURB; |
87 |
|
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static PendingURB *pending_urbs = NULL; |
89 |
|
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static int add_pending_urb(struct usbdevfs_urb *urb) |
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{ |
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PendingURB *purb = qemu_mallocz(sizeof(PendingURB));
|
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if (purb) {
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purb->urb = urb; |
95 |
purb->status = 0;
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purb->next = pending_urbs; |
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pending_urbs = purb; |
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return 1; |
99 |
} |
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return 0; |
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} |
102 |
|
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static int del_pending_urb(struct usbdevfs_urb *urb) |
104 |
{ |
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PendingURB *purb = pending_urbs; |
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PendingURB *prev = NULL;
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|
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while (purb && purb->urb != urb) {
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prev = purb; |
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purb = purb->next; |
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} |
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|
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if (purb && purb->urb == urb) {
|
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if (prev) {
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prev->next = purb->next; |
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} else {
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pending_urbs = purb->next; |
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} |
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qemu_free(purb); |
120 |
return 1; |
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} |
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return 0; |
123 |
} |
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|
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#ifdef USE_ASYNCIO
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static PendingURB *get_pending_urb(struct usbdevfs_urb *urb) |
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{ |
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PendingURB *purb = pending_urbs; |
129 |
|
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while (purb && purb->urb != urb) {
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purb = purb->next; |
132 |
} |
133 |
|
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if (purb && purb->urb == urb) {
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return purb;
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} |
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return NULL; |
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} |
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#endif
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|
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static int usb_host_update_interfaces(USBHostDevice *dev, int configuration) |
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{ |
143 |
int dev_descr_len, config_descr_len;
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int interface, nb_interfaces, nb_configurations;
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int ret, i;
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|
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if (configuration == 0) /* address state - ignore */ |
148 |
return 1; |
149 |
|
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i = 0;
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dev_descr_len = dev->descr[0];
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if (dev_descr_len > dev->descr_len)
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goto fail;
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nb_configurations = dev->descr[17];
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|
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i += dev_descr_len; |
157 |
while (i < dev->descr_len) {
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#ifdef DEBUG
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printf("i is %d, descr_len is %d, dl %d, dt %d\n", i, dev->descr_len,
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dev->descr[i], dev->descr[i+1]);
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#endif
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if (dev->descr[i+1] != USB_DT_CONFIG) { |
163 |
i += dev->descr[i]; |
164 |
continue;
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} |
166 |
config_descr_len = dev->descr[i]; |
167 |
|
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if (configuration == dev->descr[i + 5]) |
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break;
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i += config_descr_len; |
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} |
173 |
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if (i >= dev->descr_len) {
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printf("usb_host: error - device has no matching configuration\n");
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goto fail;
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} |
178 |
nb_interfaces = dev->descr[i + 4];
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#ifdef USBDEVFS_DISCONNECT
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/* earlier Linux 2.4 do not support that */
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{ |
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struct usbdevfs_ioctl ctrl;
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for (interface = 0; interface < nb_interfaces; interface++) { |
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ctrl.ioctl_code = USBDEVFS_DISCONNECT; |
186 |
ctrl.ifno = interface; |
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ret = ioctl(dev->fd, USBDEVFS_IOCTL, &ctrl); |
188 |
if (ret < 0 && errno != ENODATA) { |
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perror("USBDEVFS_DISCONNECT");
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goto fail;
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} |
192 |
} |
193 |
} |
194 |
#endif
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/* XXX: only grab if all interfaces are free */
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for (interface = 0; interface < nb_interfaces; interface++) { |
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ret = ioctl(dev->fd, USBDEVFS_CLAIMINTERFACE, &interface); |
199 |
if (ret < 0) { |
200 |
if (errno == EBUSY) {
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fprintf(stderr, |
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"usb_host: warning - device already grabbed\n");
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} else {
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perror("USBDEVFS_CLAIMINTERFACE");
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} |
206 |
fail:
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return 0; |
208 |
} |
209 |
} |
210 |
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#ifdef DEBUG
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printf("usb_host: %d interfaces claimed for configuration %d\n",
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nb_interfaces, configuration); |
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#endif
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return 1; |
217 |
} |
218 |
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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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/* USBDEVFS_RESET, but not the first time as it has already be
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done by the host OS */
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ioctl(s->fd, USBDEVFS_RESET);
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#endif
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} |
228 |
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static void usb_host_handle_destroy(USBDevice *dev) |
230 |
{ |
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USBHostDevice *s = (USBHostDevice *)dev; |
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if (s->fd >= 0) |
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close(s->fd); |
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qemu_free(s); |
236 |
} |
237 |
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static int usb_linux_update_endp_table(USBHostDevice *s); |
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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; |
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struct usb_ctrltransfer ct;
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struct usbdevfs_setinterface si;
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int intf_update_required = 0; |
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int ret;
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if (request == (DeviceOutRequest | USB_REQ_SET_ADDRESS)) {
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/* specific SET_ADDRESS support */
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dev->addr = value; |
256 |
return 0; |
257 |
} else if (request == ((USB_RECIP_INTERFACE << 8) | |
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USB_REQ_SET_INTERFACE)) { |
259 |
/* set alternate setting for the interface */
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si.interface = index; |
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si.altsetting = value; |
262 |
ret = ioctl(s->fd, USBDEVFS_SETINTERFACE, &si); |
263 |
usb_linux_update_endp_table(s); |
264 |
} else if (request == (DeviceOutRequest | USB_REQ_SET_CONFIGURATION)) { |
265 |
#ifdef DEBUG
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printf("usb_host_handle_control: SET_CONFIGURATION request - "
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"config %d\n", value & 0xff); |
268 |
#endif
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if (s->configuration != (value & 0xff)) { |
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s->configuration = (value & 0xff);
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intf_update_required = 1;
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} |
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goto do_request;
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} else {
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do_request:
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ct.bRequestType = request >> 8;
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ct.bRequest = request; |
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ct.wValue = value; |
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ct.wIndex = index; |
280 |
ct.wLength = length; |
281 |
ct.timeout = 50;
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ct.data = data; |
283 |
ret = ioctl(s->fd, USBDEVFS_CONTROL, &ct); |
284 |
} |
285 |
|
286 |
if (ret < 0) { |
287 |
switch(errno) {
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case ETIMEDOUT:
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return USB_RET_NAK;
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default:
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return USB_RET_STALL;
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} |
293 |
} else {
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if (intf_update_required) {
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#ifdef DEBUG
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printf("usb_host_handle_control: updating interfaces\n");
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#endif
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usb_host_update_interfaces(s, value & 0xff);
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} |
300 |
return ret;
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} |
302 |
} |
303 |
|
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static int usb_host_handle_isoch(USBDevice *dev, USBPacket *p); |
305 |
|
306 |
static int usb_host_handle_data(USBDevice *dev, USBPacket *p) |
307 |
{ |
308 |
USBHostDevice *s = (USBHostDevice *)dev; |
309 |
struct usbdevfs_bulktransfer bt;
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310 |
int ret;
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uint8_t devep = p->devep; |
312 |
|
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if (s->endp_table[p->devep - 1].type == USBDEVFS_URB_TYPE_ISO) { |
314 |
return usb_host_handle_isoch(dev, p);
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315 |
} |
316 |
|
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/* XXX: optimize and handle all data types by looking at the
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318 |
config descriptor */
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319 |
if (p->pid == USB_TOKEN_IN)
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320 |
devep |= 0x80;
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321 |
bt.ep = devep; |
322 |
bt.len = p->len; |
323 |
bt.timeout = 50;
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324 |
bt.data = p->data; |
325 |
ret = ioctl(s->fd, USBDEVFS_BULK, &bt); |
326 |
if (ret < 0) { |
327 |
switch(errno) {
|
328 |
case ETIMEDOUT:
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329 |
return USB_RET_NAK;
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330 |
case EPIPE:
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331 |
default:
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332 |
#ifdef DEBUG
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333 |
printf("handle_data: errno=%d\n", errno);
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334 |
#endif
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335 |
return USB_RET_STALL;
|
336 |
} |
337 |
} else {
|
338 |
return ret;
|
339 |
} |
340 |
} |
341 |
|
342 |
#ifdef USE_ASYNCIO
|
343 |
static void urb_completion_pipe_read(void *opaque) |
344 |
{ |
345 |
USBHostDevice *s = opaque; |
346 |
USBPacket *p = s->packet; |
347 |
PendingURB *pending_urb = NULL;
|
348 |
struct usbdevfs_urb *purb = NULL; |
349 |
int len, ret;
|
350 |
|
351 |
len = read(s->pipe_fds[0], &pending_urb, sizeof(pending_urb)); |
352 |
if (len != sizeof(pending_urb)) { |
353 |
printf("urb_completion: error reading pending_urb, len=%d\n", len);
|
354 |
return;
|
355 |
} |
356 |
|
357 |
/* FIXME: handle pending_urb->status */
|
358 |
del_pending_urb(pending_urb->urb); |
359 |
|
360 |
if (!p) {
|
361 |
s->urbs_ready++; |
362 |
return;
|
363 |
} |
364 |
|
365 |
ret = ioctl(s->fd, USBDEVFS_REAPURBNDELAY, &purb); |
366 |
if (ret < 0) { |
367 |
printf("urb_completion: REAPURBNDELAY ioctl=%d errno=%d\n",
|
368 |
ret, errno); |
369 |
return;
|
370 |
} |
371 |
|
372 |
#ifdef DEBUG_ISOCH
|
373 |
if (purb == pending_urb->urb) {
|
374 |
printf("urb_completion: urb mismatch reaped=%p pending=%p\n",
|
375 |
purb, urb); |
376 |
} |
377 |
#endif
|
378 |
|
379 |
p->len = purb->actual_length; |
380 |
usb_packet_complete(p); |
381 |
qemu_free(purb); |
382 |
s->packet = NULL;
|
383 |
} |
384 |
|
385 |
static void isoch_done(int signum, siginfo_t *info, void *context) |
386 |
{ |
387 |
struct usbdevfs_urb *urb = (struct usbdevfs_urb *)info->si_addr; |
388 |
USBHostDevice *s = (USBHostDevice *)urb->usercontext; |
389 |
PendingURB *purb; |
390 |
|
391 |
if (info->si_code != SI_ASYNCIO ||
|
392 |
info->si_signo != SIG_ISOCOMPLETE) { |
393 |
return;
|
394 |
} |
395 |
|
396 |
purb = get_pending_urb(urb); |
397 |
if (purb) {
|
398 |
purb->status = info->si_errno; |
399 |
write(s->pipe_fds[1], &purb, sizeof(purb)); |
400 |
} |
401 |
} |
402 |
#endif
|
403 |
|
404 |
static int usb_host_handle_isoch(USBDevice *dev, USBPacket *p) |
405 |
{ |
406 |
USBHostDevice *s = (USBHostDevice *)dev; |
407 |
struct usbdevfs_urb *urb, *purb = NULL; |
408 |
int ret;
|
409 |
uint8_t devep = p->devep; |
410 |
|
411 |
if (p->pid == USB_TOKEN_IN)
|
412 |
devep |= 0x80;
|
413 |
|
414 |
urb = qemu_mallocz(sizeof(struct usbdevfs_urb) + |
415 |
sizeof(struct usbdevfs_iso_packet_desc)); |
416 |
if (!urb) {
|
417 |
printf("usb_host_handle_isoch: malloc failed\n");
|
418 |
return 0; |
419 |
} |
420 |
|
421 |
urb->type = USBDEVFS_URB_TYPE_ISO; |
422 |
urb->endpoint = devep; |
423 |
urb->status = 0;
|
424 |
urb->flags = USBDEVFS_URB_ISO_ASAP; |
425 |
urb->buffer = p->data; |
426 |
urb->buffer_length = p->len; |
427 |
urb->actual_length = 0;
|
428 |
urb->start_frame = 0;
|
429 |
urb->error_count = 0;
|
430 |
#ifdef USE_ASYNCIO
|
431 |
urb->signr = SIG_ISOCOMPLETE; |
432 |
#else
|
433 |
urb->signr = 0;
|
434 |
#endif
|
435 |
urb->usercontext = s; |
436 |
urb->number_of_packets = 1;
|
437 |
urb->iso_frame_desc[0].length = p->len;
|
438 |
urb->iso_frame_desc[0].actual_length = 0; |
439 |
urb->iso_frame_desc[0].status = 0; |
440 |
ret = ioctl(s->fd, USBDEVFS_SUBMITURB, urb); |
441 |
if (ret == 0) { |
442 |
if (!add_pending_urb(urb)) {
|
443 |
printf("usb_host_handle_isoch: add_pending_urb failed %p\n", urb);
|
444 |
} |
445 |
} else {
|
446 |
printf("usb_host_handle_isoch: SUBMITURB ioctl=%d errno=%d\n",
|
447 |
ret, errno); |
448 |
qemu_free(urb); |
449 |
switch(errno) {
|
450 |
case ETIMEDOUT:
|
451 |
return USB_RET_NAK;
|
452 |
case EPIPE:
|
453 |
default:
|
454 |
return USB_RET_STALL;
|
455 |
} |
456 |
} |
457 |
#ifdef USE_ASYNCIO
|
458 |
/* FIXME: handle urbs_ready together with sync io
|
459 |
* workaround for injecting the signaled urbs into current frame */
|
460 |
if (s->urbs_ready > 0) { |
461 |
ret = ioctl(s->fd, USBDEVFS_REAPURBNDELAY, &purb); |
462 |
if (ret == 0) { |
463 |
ret = purb->actual_length; |
464 |
qemu_free(purb); |
465 |
s->urbs_ready--; |
466 |
} |
467 |
return ret;
|
468 |
} |
469 |
s->packet = p; |
470 |
return USB_RET_ASYNC;
|
471 |
#else
|
472 |
ret = ioctl(s->fd, USBDEVFS_REAPURBNDELAY, &purb); |
473 |
if (ret == 0) { |
474 |
if (del_pending_urb(purb)) {
|
475 |
ret = purb->actual_length; |
476 |
qemu_free(purb); |
477 |
} else {
|
478 |
printf("usb_host_handle_isoch: del_pending_urb failed %p\n", purb);
|
479 |
} |
480 |
} else {
|
481 |
#ifdef DEBUG_ISOCH
|
482 |
printf("usb_host_handle_isoch: REAPURBNDELAY ioctl=%d errno=%d\n",
|
483 |
ret, errno); |
484 |
#endif
|
485 |
} |
486 |
return ret;
|
487 |
#endif
|
488 |
} |
489 |
|
490 |
/* returns 1 on problem encountered or 0 for success */
|
491 |
static int usb_linux_update_endp_table(USBHostDevice *s) |
492 |
{ |
493 |
uint8_t *descriptors; |
494 |
uint8_t devep, type, configuration, alt_interface; |
495 |
struct usb_ctrltransfer ct;
|
496 |
int interface, ret, length, i;
|
497 |
|
498 |
ct.bRequestType = USB_DIR_IN; |
499 |
ct.bRequest = USB_REQ_GET_CONFIGURATION; |
500 |
ct.wValue = 0;
|
501 |
ct.wIndex = 0;
|
502 |
ct.wLength = 1;
|
503 |
ct.data = &configuration; |
504 |
ct.timeout = 50;
|
505 |
|
506 |
ret = ioctl(s->fd, USBDEVFS_CONTROL, &ct); |
507 |
if (ret < 0) { |
508 |
perror("usb_linux_update_endp_table");
|
509 |
return 1; |
510 |
} |
511 |
|
512 |
/* in address state */
|
513 |
if (configuration == 0) |
514 |
return 1; |
515 |
|
516 |
/* get the desired configuration, interface, and endpoint descriptors
|
517 |
* from device description */
|
518 |
descriptors = &s->descr[18];
|
519 |
length = s->descr_len - 18;
|
520 |
i = 0;
|
521 |
|
522 |
if (descriptors[i + 1] != USB_DT_CONFIG || |
523 |
descriptors[i + 5] != configuration) {
|
524 |
printf("invalid descriptor data - configuration\n");
|
525 |
return 1; |
526 |
} |
527 |
i += descriptors[i]; |
528 |
|
529 |
while (i < length) {
|
530 |
if (descriptors[i + 1] != USB_DT_INTERFACE || |
531 |
(descriptors[i + 1] == USB_DT_INTERFACE &&
|
532 |
descriptors[i + 4] == 0)) { |
533 |
i += descriptors[i]; |
534 |
continue;
|
535 |
} |
536 |
|
537 |
interface = descriptors[i + 2];
|
538 |
|
539 |
ct.bRequestType = USB_DIR_IN | USB_RECIP_INTERFACE; |
540 |
ct.bRequest = USB_REQ_GET_INTERFACE; |
541 |
ct.wValue = 0;
|
542 |
ct.wIndex = interface; |
543 |
ct.wLength = 1;
|
544 |
ct.data = &alt_interface; |
545 |
ct.timeout = 50;
|
546 |
|
547 |
ret = ioctl(s->fd, USBDEVFS_CONTROL, &ct); |
548 |
if (ret < 0) { |
549 |
perror("usb_linux_update_endp_table");
|
550 |
return 1; |
551 |
} |
552 |
|
553 |
/* the current interface descriptor is the active interface
|
554 |
* and has endpoints */
|
555 |
if (descriptors[i + 3] != alt_interface) { |
556 |
i += descriptors[i]; |
557 |
continue;
|
558 |
} |
559 |
|
560 |
/* advance to the endpoints */
|
561 |
while (i < length && descriptors[i +1] != USB_DT_ENDPOINT) |
562 |
i += descriptors[i]; |
563 |
|
564 |
if (i >= length)
|
565 |
break;
|
566 |
|
567 |
while (i < length) {
|
568 |
if (descriptors[i + 1] != USB_DT_ENDPOINT) |
569 |
break;
|
570 |
|
571 |
devep = descriptors[i + 2];
|
572 |
switch (descriptors[i + 3] & 0x3) { |
573 |
case 0x00: |
574 |
type = USBDEVFS_URB_TYPE_CONTROL; |
575 |
break;
|
576 |
case 0x01: |
577 |
type = USBDEVFS_URB_TYPE_ISO; |
578 |
break;
|
579 |
case 0x02: |
580 |
type = USBDEVFS_URB_TYPE_BULK; |
581 |
break;
|
582 |
case 0x03: |
583 |
type = USBDEVFS_URB_TYPE_INTERRUPT; |
584 |
break;
|
585 |
default:
|
586 |
printf("usb_host: malformed endpoint type\n");
|
587 |
type = USBDEVFS_URB_TYPE_BULK; |
588 |
} |
589 |
s->endp_table[(devep & 0xf) - 1].type = type; |
590 |
|
591 |
i += descriptors[i]; |
592 |
} |
593 |
} |
594 |
return 0; |
595 |
} |
596 |
|
597 |
/* XXX: exclude high speed devices or implement EHCI */
|
598 |
USBDevice *usb_host_device_open(const char *devname) |
599 |
{ |
600 |
int fd = -1, ret; |
601 |
USBHostDevice *dev = NULL;
|
602 |
struct usbdevfs_connectinfo ci;
|
603 |
char buf[1024]; |
604 |
int bus_num, addr;
|
605 |
char product_name[PRODUCT_NAME_SZ];
|
606 |
|
607 |
dev = qemu_mallocz(sizeof(USBHostDevice));
|
608 |
if (!dev)
|
609 |
goto fail;
|
610 |
|
611 |
#ifdef DEBUG_ISOCH
|
612 |
printf("usb_host_device_open %s\n", devname);
|
613 |
#endif
|
614 |
if (usb_host_find_device(&bus_num, &addr,
|
615 |
product_name, sizeof(product_name),
|
616 |
devname) < 0)
|
617 |
return NULL; |
618 |
|
619 |
snprintf(buf, sizeof(buf), USBDEVFS_PATH "/%03d/%03d", |
620 |
bus_num, addr); |
621 |
fd = open(buf, O_RDWR | O_NONBLOCK); |
622 |
if (fd < 0) { |
623 |
perror(buf); |
624 |
return NULL; |
625 |
} |
626 |
|
627 |
/* read the device description */
|
628 |
dev->descr_len = read(fd, dev->descr, sizeof(dev->descr));
|
629 |
if (dev->descr_len <= 0) { |
630 |
perror("usb_host_device_open: reading device data failed");
|
631 |
goto fail;
|
632 |
} |
633 |
|
634 |
#ifdef DEBUG
|
635 |
{ |
636 |
int x;
|
637 |
printf("=== begin dumping device descriptor data ===\n");
|
638 |
for (x = 0; x < dev->descr_len; x++) |
639 |
printf("%02x ", dev->descr[x]);
|
640 |
printf("\n=== end dumping device descriptor data ===\n");
|
641 |
} |
642 |
#endif
|
643 |
|
644 |
dev->fd = fd; |
645 |
dev->configuration = 1;
|
646 |
|
647 |
/* XXX - do something about initial configuration */
|
648 |
if (!usb_host_update_interfaces(dev, 1)) |
649 |
goto fail;
|
650 |
|
651 |
ret = ioctl(fd, USBDEVFS_CONNECTINFO, &ci); |
652 |
if (ret < 0) { |
653 |
perror("usb_host_device_open: USBDEVFS_CONNECTINFO");
|
654 |
goto fail;
|
655 |
} |
656 |
|
657 |
#ifdef DEBUG
|
658 |
printf("host USB device %d.%d grabbed\n", bus_num, addr);
|
659 |
#endif
|
660 |
|
661 |
ret = usb_linux_update_endp_table(dev); |
662 |
if (ret)
|
663 |
goto fail;
|
664 |
|
665 |
if (ci.slow)
|
666 |
dev->dev.speed = USB_SPEED_LOW; |
667 |
else
|
668 |
dev->dev.speed = USB_SPEED_HIGH; |
669 |
dev->dev.handle_packet = usb_generic_handle_packet; |
670 |
|
671 |
dev->dev.handle_reset = usb_host_handle_reset; |
672 |
dev->dev.handle_control = usb_host_handle_control; |
673 |
dev->dev.handle_data = usb_host_handle_data; |
674 |
dev->dev.handle_destroy = usb_host_handle_destroy; |
675 |
|
676 |
if (product_name[0] == '\0') |
677 |
snprintf(dev->dev.devname, sizeof(dev->dev.devname),
|
678 |
"host:%s", devname);
|
679 |
else
|
680 |
pstrcpy(dev->dev.devname, sizeof(dev->dev.devname),
|
681 |
product_name); |
682 |
|
683 |
#ifdef USE_ASYNCIO
|
684 |
/* set up the signal handlers */
|
685 |
sigemptyset(&sigact.sa_mask); |
686 |
sigact.sa_sigaction = isoch_done; |
687 |
sigact.sa_flags = SA_SIGINFO; |
688 |
sigact.sa_restorer = 0;
|
689 |
ret = sigaction(SIG_ISOCOMPLETE, &sigact, NULL);
|
690 |
if (ret < 0) { |
691 |
perror("usb_host_device_open: sigaction failed");
|
692 |
goto fail;
|
693 |
} |
694 |
|
695 |
if (pipe(dev->pipe_fds) < 0) { |
696 |
perror("usb_host_device_open: pipe creation failed");
|
697 |
goto fail;
|
698 |
} |
699 |
fcntl(dev->pipe_fds[0], F_SETFL, O_NONBLOCK | O_ASYNC);
|
700 |
fcntl(dev->pipe_fds[1], F_SETFL, O_NONBLOCK);
|
701 |
qemu_set_fd_handler(dev->pipe_fds[0], urb_completion_pipe_read, NULL, dev); |
702 |
#endif
|
703 |
dev->urbs_ready = 0;
|
704 |
return (USBDevice *)dev;
|
705 |
fail:
|
706 |
if (dev)
|
707 |
qemu_free(dev); |
708 |
close(fd); |
709 |
return NULL; |
710 |
} |
711 |
|
712 |
static int get_tag_value(char *buf, int buf_size, |
713 |
const char *str, const char *tag, |
714 |
const char *stopchars) |
715 |
{ |
716 |
const char *p; |
717 |
char *q;
|
718 |
p = strstr(str, tag); |
719 |
if (!p)
|
720 |
return -1; |
721 |
p += strlen(tag); |
722 |
while (isspace(*p))
|
723 |
p++; |
724 |
q = buf; |
725 |
while (*p != '\0' && !strchr(stopchars, *p)) { |
726 |
if ((q - buf) < (buf_size - 1)) |
727 |
*q++ = *p; |
728 |
p++; |
729 |
} |
730 |
*q = '\0';
|
731 |
return q - buf;
|
732 |
} |
733 |
|
734 |
static int usb_host_scan(void *opaque, USBScanFunc *func) |
735 |
{ |
736 |
FILE *f; |
737 |
char line[1024]; |
738 |
char buf[1024]; |
739 |
int bus_num, addr, speed, device_count, class_id, product_id, vendor_id;
|
740 |
int ret;
|
741 |
char product_name[512]; |
742 |
|
743 |
f = fopen(USBDEVFS_PATH "/devices", "r"); |
744 |
if (!f) {
|
745 |
term_printf("Could not open %s\n", USBDEVFS_PATH "/devices"); |
746 |
return 0; |
747 |
} |
748 |
device_count = 0;
|
749 |
bus_num = addr = speed = class_id = product_id = vendor_id = 0;
|
750 |
ret = 0;
|
751 |
for(;;) {
|
752 |
if (fgets(line, sizeof(line), f) == NULL) |
753 |
break;
|
754 |
if (strlen(line) > 0) |
755 |
line[strlen(line) - 1] = '\0'; |
756 |
if (line[0] == 'T' && line[1] == ':') { |
757 |
if (device_count && (vendor_id || product_id)) {
|
758 |
/* New device. Add the previously discovered device. */
|
759 |
ret = func(opaque, bus_num, addr, class_id, vendor_id, |
760 |
product_id, product_name, speed); |
761 |
if (ret)
|
762 |
goto the_end;
|
763 |
} |
764 |
if (get_tag_value(buf, sizeof(buf), line, "Bus=", " ") < 0) |
765 |
goto fail;
|
766 |
bus_num = atoi(buf); |
767 |
if (get_tag_value(buf, sizeof(buf), line, "Dev#=", " ") < 0) |
768 |
goto fail;
|
769 |
addr = atoi(buf); |
770 |
if (get_tag_value(buf, sizeof(buf), line, "Spd=", " ") < 0) |
771 |
goto fail;
|
772 |
if (!strcmp(buf, "480")) |
773 |
speed = USB_SPEED_HIGH; |
774 |
else if (!strcmp(buf, "1.5")) |
775 |
speed = USB_SPEED_LOW; |
776 |
else
|
777 |
speed = USB_SPEED_FULL; |
778 |
product_name[0] = '\0'; |
779 |
class_id = 0xff;
|
780 |
device_count++; |
781 |
product_id = 0;
|
782 |
vendor_id = 0;
|
783 |
} else if (line[0] == 'P' && line[1] == ':') { |
784 |
if (get_tag_value(buf, sizeof(buf), line, "Vendor=", " ") < 0) |
785 |
goto fail;
|
786 |
vendor_id = strtoul(buf, NULL, 16); |
787 |
if (get_tag_value(buf, sizeof(buf), line, "ProdID=", " ") < 0) |
788 |
goto fail;
|
789 |
product_id = strtoul(buf, NULL, 16); |
790 |
} else if (line[0] == 'S' && line[1] == ':') { |
791 |
if (get_tag_value(buf, sizeof(buf), line, "Product=", "") < 0) |
792 |
goto fail;
|
793 |
pstrcpy(product_name, sizeof(product_name), buf);
|
794 |
} else if (line[0] == 'D' && line[1] == ':') { |
795 |
if (get_tag_value(buf, sizeof(buf), line, "Cls=", " (") < 0) |
796 |
goto fail;
|
797 |
class_id = strtoul(buf, NULL, 16); |
798 |
} |
799 |
fail: ;
|
800 |
} |
801 |
if (device_count && (vendor_id || product_id)) {
|
802 |
/* Add the last device. */
|
803 |
ret = func(opaque, bus_num, addr, class_id, vendor_id, |
804 |
product_id, product_name, speed); |
805 |
} |
806 |
the_end:
|
807 |
fclose(f); |
808 |
return ret;
|
809 |
} |
810 |
|
811 |
typedef struct FindDeviceState { |
812 |
int vendor_id;
|
813 |
int product_id;
|
814 |
int bus_num;
|
815 |
int addr;
|
816 |
char product_name[PRODUCT_NAME_SZ];
|
817 |
} FindDeviceState; |
818 |
|
819 |
static int usb_host_find_device_scan(void *opaque, int bus_num, int addr, |
820 |
int class_id,
|
821 |
int vendor_id, int product_id, |
822 |
const char *product_name, int speed) |
823 |
{ |
824 |
FindDeviceState *s = opaque; |
825 |
if ((vendor_id == s->vendor_id &&
|
826 |
product_id == s->product_id) || |
827 |
(bus_num == s->bus_num && |
828 |
addr == s->addr)) { |
829 |
pstrcpy(s->product_name, PRODUCT_NAME_SZ, product_name); |
830 |
s->bus_num = bus_num; |
831 |
s->addr = addr; |
832 |
return 1; |
833 |
} else {
|
834 |
return 0; |
835 |
} |
836 |
} |
837 |
|
838 |
/* the syntax is :
|
839 |
'bus.addr' (decimal numbers) or
|
840 |
'vendor_id:product_id' (hexa numbers) */
|
841 |
static int usb_host_find_device(int *pbus_num, int *paddr, |
842 |
char *product_name, int product_name_size, |
843 |
const char *devname) |
844 |
{ |
845 |
const char *p; |
846 |
int ret;
|
847 |
FindDeviceState fs; |
848 |
|
849 |
p = strchr(devname, '.');
|
850 |
if (p) {
|
851 |
*pbus_num = strtoul(devname, NULL, 0); |
852 |
*paddr = strtoul(p + 1, NULL, 0); |
853 |
fs.bus_num = *pbus_num; |
854 |
fs.addr = *paddr; |
855 |
ret = usb_host_scan(&fs, usb_host_find_device_scan); |
856 |
if (ret)
|
857 |
pstrcpy(product_name, product_name_size, fs.product_name); |
858 |
return 0; |
859 |
} |
860 |
p = strchr(devname, ':');
|
861 |
if (p) {
|
862 |
fs.vendor_id = strtoul(devname, NULL, 16); |
863 |
fs.product_id = strtoul(p + 1, NULL, 16); |
864 |
ret = usb_host_scan(&fs, usb_host_find_device_scan); |
865 |
if (ret) {
|
866 |
*pbus_num = fs.bus_num; |
867 |
*paddr = fs.addr; |
868 |
pstrcpy(product_name, product_name_size, fs.product_name); |
869 |
return 0; |
870 |
} |
871 |
} |
872 |
return -1; |
873 |
} |
874 |
|
875 |
/**********************/
|
876 |
/* USB host device info */
|
877 |
|
878 |
struct usb_class_info {
|
879 |
int class;
|
880 |
const char *class_name; |
881 |
}; |
882 |
|
883 |
static const struct usb_class_info usb_class_info[] = { |
884 |
{ USB_CLASS_AUDIO, "Audio"},
|
885 |
{ USB_CLASS_COMM, "Communication"},
|
886 |
{ USB_CLASS_HID, "HID"},
|
887 |
{ USB_CLASS_HUB, "Hub" },
|
888 |
{ USB_CLASS_PHYSICAL, "Physical" },
|
889 |
{ USB_CLASS_PRINTER, "Printer" },
|
890 |
{ USB_CLASS_MASS_STORAGE, "Storage" },
|
891 |
{ USB_CLASS_CDC_DATA, "Data" },
|
892 |
{ USB_CLASS_APP_SPEC, "Application Specific" },
|
893 |
{ USB_CLASS_VENDOR_SPEC, "Vendor Specific" },
|
894 |
{ USB_CLASS_STILL_IMAGE, "Still Image" },
|
895 |
{ USB_CLASS_CSCID, "Smart Card" },
|
896 |
{ USB_CLASS_CONTENT_SEC, "Content Security" },
|
897 |
{ -1, NULL } |
898 |
}; |
899 |
|
900 |
static const char *usb_class_str(uint8_t class) |
901 |
{ |
902 |
const struct usb_class_info *p; |
903 |
for(p = usb_class_info; p->class != -1; p++) { |
904 |
if (p->class == class)
|
905 |
break;
|
906 |
} |
907 |
return p->class_name;
|
908 |
} |
909 |
|
910 |
static void usb_info_device(int bus_num, int addr, int class_id, |
911 |
int vendor_id, int product_id, |
912 |
const char *product_name, |
913 |
int speed)
|
914 |
{ |
915 |
const char *class_str, *speed_str; |
916 |
|
917 |
switch(speed) {
|
918 |
case USB_SPEED_LOW:
|
919 |
speed_str = "1.5";
|
920 |
break;
|
921 |
case USB_SPEED_FULL:
|
922 |
speed_str = "12";
|
923 |
break;
|
924 |
case USB_SPEED_HIGH:
|
925 |
speed_str = "480";
|
926 |
break;
|
927 |
default:
|
928 |
speed_str = "?";
|
929 |
break;
|
930 |
} |
931 |
|
932 |
term_printf(" Device %d.%d, speed %s Mb/s\n",
|
933 |
bus_num, addr, speed_str); |
934 |
class_str = usb_class_str(class_id); |
935 |
if (class_str)
|
936 |
term_printf(" %s:", class_str);
|
937 |
else
|
938 |
term_printf(" Class %02x:", class_id);
|
939 |
term_printf(" USB device %04x:%04x", vendor_id, product_id);
|
940 |
if (product_name[0] != '\0') |
941 |
term_printf(", %s", product_name);
|
942 |
term_printf("\n");
|
943 |
} |
944 |
|
945 |
static int usb_host_info_device(void *opaque, int bus_num, int addr, |
946 |
int class_id,
|
947 |
int vendor_id, int product_id, |
948 |
const char *product_name, |
949 |
int speed)
|
950 |
{ |
951 |
usb_info_device(bus_num, addr, class_id, vendor_id, product_id, |
952 |
product_name, speed); |
953 |
return 0; |
954 |
} |
955 |
|
956 |
void usb_host_info(void) |
957 |
{ |
958 |
usb_host_scan(NULL, usb_host_info_device);
|
959 |
} |
960 |
|
961 |
#else
|
962 |
|
963 |
void usb_host_info(void) |
964 |
{ |
965 |
term_printf("USB host devices not supported\n");
|
966 |
} |
967 |
|
968 |
/* XXX: modify configure to compile the right host driver */
|
969 |
USBDevice *usb_host_device_open(const char *devname) |
970 |
{ |
971 |
return NULL; |
972 |
} |
973 |
|
974 |
#endif
|