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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 "vl.h" |
| 25 |
|
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#if defined(__linux__)
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#include <dirent.h> |
| 28 |
#include <sys/ioctl.h> |
| 29 |
#include <linux/usbdevice_fs.h> |
| 30 |
#include <linux/version.h> |
| 31 |
#include <signal.h> |
| 32 |
|
| 33 |
/* We redefine it to avoid version problems */
|
| 34 |
struct usb_ctrltransfer {
|
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uint8_t bRequestType; |
| 36 |
uint8_t bRequest; |
| 37 |
uint16_t wValue; |
| 38 |
uint16_t wIndex; |
| 39 |
uint16_t wLength; |
| 40 |
uint32_t timeout; |
| 41 |
void *data;
|
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}; |
| 43 |
|
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typedef int USBScanFunc(void *opaque, int bus_num, int addr, int class_id, |
| 45 |
int vendor_id, int product_id, |
| 46 |
const char *product_name, int speed); |
| 47 |
static int usb_host_find_device(int *pbus_num, int *paddr, |
| 48 |
char *product_name, int product_name_size, |
| 49 |
const char *devname); |
| 50 |
|
| 51 |
//#define DEBUG
|
| 52 |
//#define DEBUG_ISOCH
|
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//#define USE_ASYNCIO
|
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|
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#define USBDEVFS_PATH "/proc/bus/usb" |
| 56 |
#define PRODUCT_NAME_SZ 32 |
| 57 |
#define SIG_ISOCOMPLETE (SIGRTMIN+7) |
| 58 |
#define MAX_ENDPOINTS 16 |
| 59 |
|
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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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}; |
| 66 |
|
| 67 |
/* FIXME: move USBPacket to PendingURB */
|
| 68 |
typedef struct USBHostDevice { |
| 69 |
USBDevice dev; |
| 70 |
int fd;
|
| 71 |
int pipe_fds[2]; |
| 72 |
USBPacket *packet; |
| 73 |
struct endp_data endp_table[MAX_ENDPOINTS];
|
| 74 |
int configuration;
|
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uint8_t descr[1024];
|
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int descr_len;
|
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int urbs_ready;
|
| 78 |
} USBHostDevice; |
| 79 |
|
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typedef struct PendingURB { |
| 81 |
struct usbdevfs_urb *urb;
|
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int status;
|
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struct PendingURB *next;
|
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} PendingURB; |
| 85 |
|
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static PendingURB *pending_urbs = NULL; |
| 87 |
|
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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; |
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purb->status = 0;
|
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purb->next = pending_urbs; |
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pending_urbs = purb; |
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return 1; |
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} |
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return 0; |
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} |
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|
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static int del_pending_urb(struct usbdevfs_urb *urb) |
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{
|
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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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} |
| 110 |
|
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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); |
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return 1; |
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} |
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return 0; |
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} |
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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; |
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|
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while (purb && purb->urb != urb) {
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purb = purb->next; |
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} |
| 131 |
|
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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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{
|
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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 */ |
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return 1; |
| 147 |
|
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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; |
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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) { |
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i += dev->descr[i]; |
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continue;
|
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} |
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config_descr_len = dev->descr[i]; |
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|
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if (configuration == dev->descr[i + 5]) |
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break;
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|
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i += config_descr_len; |
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} |
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|
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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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} |
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nb_interfaces = dev->descr[i + 4];
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|
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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; |
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ctrl.ifno = interface; |
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ret = ioctl(dev->fd, USBDEVFS_IOCTL, &ctrl); |
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if (ret < 0 && errno != ENODATA) { |
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perror("USBDEVFS_DISCONNECT");
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goto fail;
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} |
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} |
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} |
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#endif
|
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|
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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); |
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if (ret < 0) { |
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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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} |
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fail:
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return 0; |
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} |
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} |
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|
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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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|
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return 1; |
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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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/* 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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} |
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|
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static void usb_host_handle_destroy(USBDevice *dev) |
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{
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USBHostDevice *s = (USBHostDevice *)dev; |
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|
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if (s->fd >= 0) |
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close(s->fd); |
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qemu_free(s); |
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} |
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|
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static int usb_linux_update_endp_table(USBHostDevice *s); |
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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; |
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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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|
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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; |
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return 0; |
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} else if (request == ((USB_RECIP_INTERFACE << 8) | |
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USB_REQ_SET_INTERFACE)) {
|
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/* set alternate setting for the interface */
|
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si.interface = index; |
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si.altsetting = value; |
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ret = ioctl(s->fd, USBDEVFS_SETINTERFACE, &si); |
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usb_linux_update_endp_table(s); |
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} else if (request == (DeviceOutRequest | USB_REQ_SET_CONFIGURATION)) { |
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#ifdef DEBUG
|
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printf("usb_host_handle_control: SET_CONFIGURATION request - "
|
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"config %d\n", value & 0xff); |
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#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; |
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ct.wLength = length; |
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ct.timeout = 50;
|
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ct.data = data; |
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ret = ioctl(s->fd, USBDEVFS_CONTROL, &ct); |
| 282 |
} |
| 283 |
|
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if (ret < 0) { |
| 285 |
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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} |
| 291 |
} 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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} |
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return ret;
|
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} |
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} |
| 301 |
|
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static int usb_host_handle_isoch(USBDevice *dev, USBPacket *p); |
| 303 |
|
| 304 |
static int usb_host_handle_data(USBDevice *dev, USBPacket *p) |
| 305 |
{
|
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USBHostDevice *s = (USBHostDevice *)dev; |
| 307 |
struct usbdevfs_bulktransfer bt;
|
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int ret;
|
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uint8_t devep = p->devep; |
| 310 |
|
| 311 |
if (s->endp_table[p->devep - 1].type == USBDEVFS_URB_TYPE_ISO) { |
| 312 |
return usb_host_handle_isoch(dev, p);
|
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} |
| 314 |
|
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/* XXX: optimize and handle all data types by looking at the
|
| 316 |
config descriptor */
|
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if (p->pid == USB_TOKEN_IN)
|
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devep |= 0x80;
|
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bt.ep = devep; |
| 320 |
bt.len = p->len; |
| 321 |
bt.timeout = 50;
|
| 322 |
bt.data = p->data; |
| 323 |
ret = ioctl(s->fd, USBDEVFS_BULK, &bt); |
| 324 |
if (ret < 0) { |
| 325 |
switch(errno) {
|
| 326 |
case ETIMEDOUT:
|
| 327 |
return USB_RET_NAK;
|
| 328 |
case EPIPE:
|
| 329 |
default:
|
| 330 |
#ifdef DEBUG
|
| 331 |
printf("handle_data: errno=%d\n", errno);
|
| 332 |
#endif
|
| 333 |
return USB_RET_STALL;
|
| 334 |
} |
| 335 |
} else {
|
| 336 |
return ret;
|
| 337 |
} |
| 338 |
} |
| 339 |
|
| 340 |
#ifdef USE_ASYNCIO
|
| 341 |
static void urb_completion_pipe_read(void *opaque) |
| 342 |
{
|
| 343 |
USBHostDevice *s = opaque; |
| 344 |
USBPacket *p = s->packet; |
| 345 |
PendingURB *pending_urb = NULL;
|
| 346 |
struct usbdevfs_urb *purb = NULL; |
| 347 |
int len, ret;
|
| 348 |
|
| 349 |
len = read(s->pipe_fds[0], &pending_urb, sizeof(pending_urb)); |
| 350 |
if (len != sizeof(pending_urb)) { |
| 351 |
printf("urb_completion: error reading pending_urb, len=%d\n", len);
|
| 352 |
return;
|
| 353 |
} |
| 354 |
|
| 355 |
/* FIXME: handle pending_urb->status */
|
| 356 |
del_pending_urb(pending_urb->urb); |
| 357 |
|
| 358 |
if (!p) {
|
| 359 |
s->urbs_ready++; |
| 360 |
return;
|
| 361 |
} |
| 362 |
|
| 363 |
ret = ioctl(s->fd, USBDEVFS_REAPURBNDELAY, &purb); |
| 364 |
if (ret < 0) { |
| 365 |
printf("urb_completion: REAPURBNDELAY ioctl=%d errno=%d\n",
|
| 366 |
ret, errno); |
| 367 |
return;
|
| 368 |
} |
| 369 |
|
| 370 |
#ifdef DEBUG_ISOCH
|
| 371 |
if (purb == pending_urb->urb) {
|
| 372 |
printf("urb_completion: urb mismatch reaped=%p pending=%p\n",
|
| 373 |
purb, urb); |
| 374 |
} |
| 375 |
#endif
|
| 376 |
|
| 377 |
p->len = purb->actual_length; |
| 378 |
usb_packet_complete(p); |
| 379 |
qemu_free(purb); |
| 380 |
s->packet = NULL;
|
| 381 |
} |
| 382 |
|
| 383 |
static void isoch_done(int signum, siginfo_t *info, void *context) |
| 384 |
{
|
| 385 |
struct usbdevfs_urb *urb = (struct usbdevfs_urb *)info->si_addr; |
| 386 |
USBHostDevice *s = (USBHostDevice *)urb->usercontext; |
| 387 |
PendingURB *purb; |
| 388 |
|
| 389 |
if (info->si_code != SI_ASYNCIO ||
|
| 390 |
info->si_signo != SIG_ISOCOMPLETE) {
|
| 391 |
return;
|
| 392 |
} |
| 393 |
|
| 394 |
purb = get_pending_urb(urb); |
| 395 |
if (purb) {
|
| 396 |
purb->status = info->si_errno; |
| 397 |
write(s->pipe_fds[1], &purb, sizeof(purb)); |
| 398 |
} |
| 399 |
} |
| 400 |
#endif
|
| 401 |
|
| 402 |
static int usb_host_handle_isoch(USBDevice *dev, USBPacket *p) |
| 403 |
{
|
| 404 |
USBHostDevice *s = (USBHostDevice *)dev; |
| 405 |
struct usbdevfs_urb *urb, *purb = NULL; |
| 406 |
int ret;
|
| 407 |
uint8_t devep = p->devep; |
| 408 |
|
| 409 |
if (p->pid == USB_TOKEN_IN)
|
| 410 |
devep |= 0x80;
|
| 411 |
|
| 412 |
urb = qemu_mallocz(sizeof(struct usbdevfs_urb) + |
| 413 |
sizeof(struct usbdevfs_iso_packet_desc)); |
| 414 |
if (!urb) {
|
| 415 |
printf("usb_host_handle_isoch: malloc failed\n");
|
| 416 |
return 0; |
| 417 |
} |
| 418 |
|
| 419 |
urb->type = USBDEVFS_URB_TYPE_ISO; |
| 420 |
urb->endpoint = devep; |
| 421 |
urb->status = 0;
|
| 422 |
urb->flags = USBDEVFS_URB_ISO_ASAP; |
| 423 |
urb->buffer = p->data; |
| 424 |
urb->buffer_length = p->len; |
| 425 |
urb->actual_length = 0;
|
| 426 |
urb->start_frame = 0;
|
| 427 |
urb->error_count = 0;
|
| 428 |
#ifdef USE_ASYNCIO
|
| 429 |
urb->signr = SIG_ISOCOMPLETE; |
| 430 |
#else
|
| 431 |
urb->signr = 0;
|
| 432 |
#endif
|
| 433 |
urb->usercontext = s; |
| 434 |
urb->number_of_packets = 1;
|
| 435 |
urb->iso_frame_desc[0].length = p->len;
|
| 436 |
urb->iso_frame_desc[0].actual_length = 0; |
| 437 |
urb->iso_frame_desc[0].status = 0; |
| 438 |
ret = ioctl(s->fd, USBDEVFS_SUBMITURB, urb); |
| 439 |
if (ret == 0) { |
| 440 |
if (!add_pending_urb(urb)) {
|
| 441 |
printf("usb_host_handle_isoch: add_pending_urb failed %p\n", urb);
|
| 442 |
} |
| 443 |
} else {
|
| 444 |
printf("usb_host_handle_isoch: SUBMITURB ioctl=%d errno=%d\n",
|
| 445 |
ret, errno); |
| 446 |
qemu_free(urb); |
| 447 |
switch(errno) {
|
| 448 |
case ETIMEDOUT:
|
| 449 |
return USB_RET_NAK;
|
| 450 |
case EPIPE:
|
| 451 |
default:
|
| 452 |
return USB_RET_STALL;
|
| 453 |
} |
| 454 |
} |
| 455 |
#ifdef USE_ASYNCIO
|
| 456 |
/* FIXME: handle urbs_ready together with sync io
|
| 457 |
* workaround for injecting the signaled urbs into current frame */
|
| 458 |
if (s->urbs_ready > 0) { |
| 459 |
ret = ioctl(s->fd, USBDEVFS_REAPURBNDELAY, &purb); |
| 460 |
if (ret == 0) { |
| 461 |
ret = purb->actual_length; |
| 462 |
qemu_free(purb); |
| 463 |
s->urbs_ready--; |
| 464 |
} |
| 465 |
return ret;
|
| 466 |
} |
| 467 |
s->packet = p; |
| 468 |
return USB_RET_ASYNC;
|
| 469 |
#else
|
| 470 |
ret = ioctl(s->fd, USBDEVFS_REAPURBNDELAY, &purb); |
| 471 |
if (ret == 0) { |
| 472 |
if (del_pending_urb(purb)) {
|
| 473 |
ret = purb->actual_length; |
| 474 |
qemu_free(purb); |
| 475 |
} else {
|
| 476 |
printf("usb_host_handle_isoch: del_pending_urb failed %p\n", purb);
|
| 477 |
} |
| 478 |
} else {
|
| 479 |
#ifdef DEBUG_ISOCH
|
| 480 |
printf("usb_host_handle_isoch: REAPURBNDELAY ioctl=%d errno=%d\n",
|
| 481 |
ret, errno); |
| 482 |
#endif
|
| 483 |
} |
| 484 |
return ret;
|
| 485 |
#endif
|
| 486 |
} |
| 487 |
|
| 488 |
/* returns 1 on problem encountered or 0 for success */
|
| 489 |
static int usb_linux_update_endp_table(USBHostDevice *s) |
| 490 |
{
|
| 491 |
uint8_t *descriptors; |
| 492 |
uint8_t devep, type, configuration, alt_interface; |
| 493 |
struct usb_ctrltransfer ct;
|
| 494 |
int interface, ret, length, i;
|
| 495 |
|
| 496 |
ct.bRequestType = USB_DIR_IN; |
| 497 |
ct.bRequest = USB_REQ_GET_CONFIGURATION; |
| 498 |
ct.wValue = 0;
|
| 499 |
ct.wIndex = 0;
|
| 500 |
ct.wLength = 1;
|
| 501 |
ct.data = &configuration; |
| 502 |
ct.timeout = 50;
|
| 503 |
|
| 504 |
ret = ioctl(s->fd, USBDEVFS_CONTROL, &ct); |
| 505 |
if (ret < 0) { |
| 506 |
perror("usb_linux_update_endp_table");
|
| 507 |
return 1; |
| 508 |
} |
| 509 |
|
| 510 |
/* in address state */
|
| 511 |
if (configuration == 0) |
| 512 |
return 1; |
| 513 |
|
| 514 |
/* get the desired configuration, interface, and endpoint descriptors
|
| 515 |
* from device description */
|
| 516 |
descriptors = &s->descr[18];
|
| 517 |
length = s->descr_len - 18;
|
| 518 |
i = 0;
|
| 519 |
|
| 520 |
if (descriptors[i + 1] != USB_DT_CONFIG || |
| 521 |
descriptors[i + 5] != configuration) {
|
| 522 |
printf("invalid descriptor data - configuration\n");
|
| 523 |
return 1; |
| 524 |
} |
| 525 |
i += descriptors[i]; |
| 526 |
|
| 527 |
while (i < length) {
|
| 528 |
if (descriptors[i + 1] != USB_DT_INTERFACE || |
| 529 |
(descriptors[i + 1] == USB_DT_INTERFACE &&
|
| 530 |
descriptors[i + 4] == 0)) { |
| 531 |
i += descriptors[i]; |
| 532 |
continue;
|
| 533 |
} |
| 534 |
|
| 535 |
interface = descriptors[i + 2];
|
| 536 |
|
| 537 |
ct.bRequestType = USB_DIR_IN | USB_RECIP_INTERFACE; |
| 538 |
ct.bRequest = USB_REQ_GET_INTERFACE; |
| 539 |
ct.wValue = 0;
|
| 540 |
ct.wIndex = interface; |
| 541 |
ct.wLength = 1;
|
| 542 |
ct.data = &alt_interface; |
| 543 |
ct.timeout = 50;
|
| 544 |
|
| 545 |
ret = ioctl(s->fd, USBDEVFS_CONTROL, &ct); |
| 546 |
if (ret < 0) { |
| 547 |
perror("usb_linux_update_endp_table");
|
| 548 |
return 1; |
| 549 |
} |
| 550 |
|
| 551 |
/* the current interface descriptor is the active interface
|
| 552 |
* and has endpoints */
|
| 553 |
if (descriptors[i + 3] != alt_interface) { |
| 554 |
i += descriptors[i]; |
| 555 |
continue;
|
| 556 |
} |
| 557 |
|
| 558 |
/* advance to the endpoints */
|
| 559 |
while (i < length && descriptors[i +1] != USB_DT_ENDPOINT) |
| 560 |
i += descriptors[i]; |
| 561 |
|
| 562 |
if (i >= length)
|
| 563 |
break;
|
| 564 |
|
| 565 |
while (i < length) {
|
| 566 |
if (descriptors[i + 1] != USB_DT_ENDPOINT) |
| 567 |
break;
|
| 568 |
|
| 569 |
devep = descriptors[i + 2];
|
| 570 |
switch (descriptors[i + 3] & 0x3) { |
| 571 |
case 0x00: |
| 572 |
type = USBDEVFS_URB_TYPE_CONTROL; |
| 573 |
break;
|
| 574 |
case 0x01: |
| 575 |
type = USBDEVFS_URB_TYPE_ISO; |
| 576 |
break;
|
| 577 |
case 0x02: |
| 578 |
type = USBDEVFS_URB_TYPE_BULK; |
| 579 |
break;
|
| 580 |
case 0x03: |
| 581 |
type = USBDEVFS_URB_TYPE_INTERRUPT; |
| 582 |
break;
|
| 583 |
default:
|
| 584 |
printf("usb_host: malformed endpoint type\n");
|
| 585 |
type = USBDEVFS_URB_TYPE_BULK; |
| 586 |
} |
| 587 |
s->endp_table[(devep & 0xf) - 1].type = type; |
| 588 |
|
| 589 |
i += descriptors[i]; |
| 590 |
} |
| 591 |
} |
| 592 |
return 0; |
| 593 |
} |
| 594 |
|
| 595 |
/* XXX: exclude high speed devices or implement EHCI */
|
| 596 |
USBDevice *usb_host_device_open(const char *devname) |
| 597 |
{
|
| 598 |
int fd = -1, ret; |
| 599 |
USBHostDevice *dev = NULL;
|
| 600 |
struct usbdevfs_connectinfo ci;
|
| 601 |
char buf[1024]; |
| 602 |
int bus_num, addr;
|
| 603 |
char product_name[PRODUCT_NAME_SZ];
|
| 604 |
|
| 605 |
dev = qemu_mallocz(sizeof(USBHostDevice));
|
| 606 |
if (!dev)
|
| 607 |
goto fail;
|
| 608 |
|
| 609 |
#ifdef DEBUG_ISOCH
|
| 610 |
printf("usb_host_device_open %s\n", devname);
|
| 611 |
#endif
|
| 612 |
if (usb_host_find_device(&bus_num, &addr,
|
| 613 |
product_name, sizeof(product_name),
|
| 614 |
devname) < 0)
|
| 615 |
return NULL; |
| 616 |
|
| 617 |
snprintf(buf, sizeof(buf), USBDEVFS_PATH "/%03d/%03d", |
| 618 |
bus_num, addr); |
| 619 |
fd = open(buf, O_RDWR | O_NONBLOCK); |
| 620 |
if (fd < 0) { |
| 621 |
perror(buf); |
| 622 |
return NULL; |
| 623 |
} |
| 624 |
|
| 625 |
/* read the device description */
|
| 626 |
dev->descr_len = read(fd, dev->descr, sizeof(dev->descr));
|
| 627 |
if (dev->descr_len <= 0) { |
| 628 |
perror("usb_host_device_open: reading device data failed");
|
| 629 |
goto fail;
|
| 630 |
} |
| 631 |
|
| 632 |
#ifdef DEBUG
|
| 633 |
{
|
| 634 |
int x;
|
| 635 |
printf("=== begin dumping device descriptor data ===\n");
|
| 636 |
for (x = 0; x < dev->descr_len; x++) |
| 637 |
printf("%02x ", dev->descr[x]);
|
| 638 |
printf("\n=== end dumping device descriptor data ===\n");
|
| 639 |
} |
| 640 |
#endif
|
| 641 |
|
| 642 |
dev->fd = fd; |
| 643 |
dev->configuration = 1;
|
| 644 |
|
| 645 |
/* XXX - do something about initial configuration */
|
| 646 |
if (!usb_host_update_interfaces(dev, 1)) |
| 647 |
goto fail;
|
| 648 |
|
| 649 |
ret = ioctl(fd, USBDEVFS_CONNECTINFO, &ci); |
| 650 |
if (ret < 0) { |
| 651 |
perror("usb_host_device_open: USBDEVFS_CONNECTINFO");
|
| 652 |
goto fail;
|
| 653 |
} |
| 654 |
|
| 655 |
#ifdef DEBUG
|
| 656 |
printf("host USB device %d.%d grabbed\n", bus_num, addr);
|
| 657 |
#endif
|
| 658 |
|
| 659 |
ret = usb_linux_update_endp_table(dev); |
| 660 |
if (ret)
|
| 661 |
goto fail;
|
| 662 |
|
| 663 |
if (ci.slow)
|
| 664 |
dev->dev.speed = USB_SPEED_LOW; |
| 665 |
else
|
| 666 |
dev->dev.speed = USB_SPEED_HIGH; |
| 667 |
dev->dev.handle_packet = usb_generic_handle_packet; |
| 668 |
|
| 669 |
dev->dev.handle_reset = usb_host_handle_reset; |
| 670 |
dev->dev.handle_control = usb_host_handle_control; |
| 671 |
dev->dev.handle_data = usb_host_handle_data; |
| 672 |
dev->dev.handle_destroy = usb_host_handle_destroy; |
| 673 |
|
| 674 |
if (product_name[0] == '\0') |
| 675 |
snprintf(dev->dev.devname, sizeof(dev->dev.devname),
|
| 676 |
"host:%s", devname);
|
| 677 |
else
|
| 678 |
pstrcpy(dev->dev.devname, sizeof(dev->dev.devname),
|
| 679 |
product_name); |
| 680 |
|
| 681 |
#ifdef USE_ASYNCIO
|
| 682 |
/* set up the signal handlers */
|
| 683 |
sigemptyset(&sigact.sa_mask); |
| 684 |
sigact.sa_sigaction = isoch_done; |
| 685 |
sigact.sa_flags = SA_SIGINFO; |
| 686 |
sigact.sa_restorer = 0;
|
| 687 |
ret = sigaction(SIG_ISOCOMPLETE, &sigact, NULL);
|
| 688 |
if (ret < 0) { |
| 689 |
perror("usb_host_device_open: sigaction failed");
|
| 690 |
goto fail;
|
| 691 |
} |
| 692 |
|
| 693 |
if (pipe(dev->pipe_fds) < 0) { |
| 694 |
perror("usb_host_device_open: pipe creation failed");
|
| 695 |
goto fail;
|
| 696 |
} |
| 697 |
fcntl(dev->pipe_fds[0], F_SETFL, O_NONBLOCK | O_ASYNC);
|
| 698 |
fcntl(dev->pipe_fds[1], F_SETFL, O_NONBLOCK);
|
| 699 |
qemu_set_fd_handler(dev->pipe_fds[0], urb_completion_pipe_read, NULL, dev); |
| 700 |
#endif
|
| 701 |
dev->urbs_ready = 0;
|
| 702 |
return (USBDevice *)dev;
|
| 703 |
fail:
|
| 704 |
if (dev)
|
| 705 |
qemu_free(dev); |
| 706 |
close(fd); |
| 707 |
return NULL; |
| 708 |
} |
| 709 |
|
| 710 |
static int get_tag_value(char *buf, int buf_size, |
| 711 |
const char *str, const char *tag, |
| 712 |
const char *stopchars) |
| 713 |
{
|
| 714 |
const char *p; |
| 715 |
char *q;
|
| 716 |
p = strstr(str, tag); |
| 717 |
if (!p)
|
| 718 |
return -1; |
| 719 |
p += strlen(tag); |
| 720 |
while (isspace(*p))
|
| 721 |
p++; |
| 722 |
q = buf; |
| 723 |
while (*p != '\0' && !strchr(stopchars, *p)) { |
| 724 |
if ((q - buf) < (buf_size - 1)) |
| 725 |
*q++ = *p; |
| 726 |
p++; |
| 727 |
} |
| 728 |
*q = '\0';
|
| 729 |
return q - buf;
|
| 730 |
} |
| 731 |
|
| 732 |
static int usb_host_scan(void *opaque, USBScanFunc *func) |
| 733 |
{
|
| 734 |
FILE *f; |
| 735 |
char line[1024]; |
| 736 |
char buf[1024]; |
| 737 |
int bus_num, addr, speed, device_count, class_id, product_id, vendor_id;
|
| 738 |
int ret;
|
| 739 |
char product_name[512]; |
| 740 |
|
| 741 |
f = fopen(USBDEVFS_PATH "/devices", "r"); |
| 742 |
if (!f) {
|
| 743 |
term_printf("Could not open %s\n", USBDEVFS_PATH "/devices"); |
| 744 |
return 0; |
| 745 |
} |
| 746 |
device_count = 0;
|
| 747 |
bus_num = addr = speed = class_id = product_id = vendor_id = 0;
|
| 748 |
ret = 0;
|
| 749 |
for(;;) {
|
| 750 |
if (fgets(line, sizeof(line), f) == NULL) |
| 751 |
break;
|
| 752 |
if (strlen(line) > 0) |
| 753 |
line[strlen(line) - 1] = '\0'; |
| 754 |
if (line[0] == 'T' && line[1] == ':') { |
| 755 |
if (device_count && (vendor_id || product_id)) {
|
| 756 |
/* New device. Add the previously discovered device. */
|
| 757 |
ret = func(opaque, bus_num, addr, class_id, vendor_id, |
| 758 |
product_id, product_name, speed); |
| 759 |
if (ret)
|
| 760 |
goto the_end;
|
| 761 |
} |
| 762 |
if (get_tag_value(buf, sizeof(buf), line, "Bus=", " ") < 0) |
| 763 |
goto fail;
|
| 764 |
bus_num = atoi(buf); |
| 765 |
if (get_tag_value(buf, sizeof(buf), line, "Dev#=", " ") < 0) |
| 766 |
goto fail;
|
| 767 |
addr = atoi(buf); |
| 768 |
if (get_tag_value(buf, sizeof(buf), line, "Spd=", " ") < 0) |
| 769 |
goto fail;
|
| 770 |
if (!strcmp(buf, "480")) |
| 771 |
speed = USB_SPEED_HIGH; |
| 772 |
else if (!strcmp(buf, "1.5")) |
| 773 |
speed = USB_SPEED_LOW; |
| 774 |
else
|
| 775 |
speed = USB_SPEED_FULL; |
| 776 |
product_name[0] = '\0'; |
| 777 |
class_id = 0xff;
|
| 778 |
device_count++; |
| 779 |
product_id = 0;
|
| 780 |
vendor_id = 0;
|
| 781 |
} else if (line[0] == 'P' && line[1] == ':') { |
| 782 |
if (get_tag_value(buf, sizeof(buf), line, "Vendor=", " ") < 0) |
| 783 |
goto fail;
|
| 784 |
vendor_id = strtoul(buf, NULL, 16); |
| 785 |
if (get_tag_value(buf, sizeof(buf), line, "ProdID=", " ") < 0) |
| 786 |
goto fail;
|
| 787 |
product_id = strtoul(buf, NULL, 16); |
| 788 |
} else if (line[0] == 'S' && line[1] == ':') { |
| 789 |
if (get_tag_value(buf, sizeof(buf), line, "Product=", "") < 0) |
| 790 |
goto fail;
|
| 791 |
pstrcpy(product_name, sizeof(product_name), buf);
|
| 792 |
} else if (line[0] == 'D' && line[1] == ':') { |
| 793 |
if (get_tag_value(buf, sizeof(buf), line, "Cls=", " (") < 0) |
| 794 |
goto fail;
|
| 795 |
class_id = strtoul(buf, NULL, 16); |
| 796 |
} |
| 797 |
fail: ;
|
| 798 |
} |
| 799 |
if (device_count && (vendor_id || product_id)) {
|
| 800 |
/* Add the last device. */
|
| 801 |
ret = func(opaque, bus_num, addr, class_id, vendor_id, |
| 802 |
product_id, product_name, speed); |
| 803 |
} |
| 804 |
the_end:
|
| 805 |
fclose(f); |
| 806 |
return ret;
|
| 807 |
} |
| 808 |
|
| 809 |
typedef struct FindDeviceState { |
| 810 |
int vendor_id;
|
| 811 |
int product_id;
|
| 812 |
int bus_num;
|
| 813 |
int addr;
|
| 814 |
char product_name[PRODUCT_NAME_SZ];
|
| 815 |
} FindDeviceState; |
| 816 |
|
| 817 |
static int usb_host_find_device_scan(void *opaque, int bus_num, int addr, |
| 818 |
int class_id,
|
| 819 |
int vendor_id, int product_id, |
| 820 |
const char *product_name, int speed) |
| 821 |
{
|
| 822 |
FindDeviceState *s = opaque; |
| 823 |
if ((vendor_id == s->vendor_id &&
|
| 824 |
product_id == s->product_id) || |
| 825 |
(bus_num == s->bus_num && |
| 826 |
addr == s->addr)) {
|
| 827 |
pstrcpy(s->product_name, PRODUCT_NAME_SZ, product_name); |
| 828 |
s->bus_num = bus_num; |
| 829 |
s->addr = addr; |
| 830 |
return 1; |
| 831 |
} else {
|
| 832 |
return 0; |
| 833 |
} |
| 834 |
} |
| 835 |
|
| 836 |
/* the syntax is :
|
| 837 |
'bus.addr' (decimal numbers) or
|
| 838 |
'vendor_id:product_id' (hexa numbers) */
|
| 839 |
static int usb_host_find_device(int *pbus_num, int *paddr, |
| 840 |
char *product_name, int product_name_size, |
| 841 |
const char *devname) |
| 842 |
{
|
| 843 |
const char *p; |
| 844 |
int ret;
|
| 845 |
FindDeviceState fs; |
| 846 |
|
| 847 |
p = strchr(devname, '.');
|
| 848 |
if (p) {
|
| 849 |
*pbus_num = strtoul(devname, NULL, 0); |
| 850 |
*paddr = strtoul(p + 1, NULL, 0); |
| 851 |
fs.bus_num = *pbus_num; |
| 852 |
fs.addr = *paddr; |
| 853 |
ret = usb_host_scan(&fs, usb_host_find_device_scan); |
| 854 |
if (ret)
|
| 855 |
pstrcpy(product_name, product_name_size, fs.product_name); |
| 856 |
return 0; |
| 857 |
} |
| 858 |
p = strchr(devname, ':');
|
| 859 |
if (p) {
|
| 860 |
fs.vendor_id = strtoul(devname, NULL, 16); |
| 861 |
fs.product_id = strtoul(p + 1, NULL, 16); |
| 862 |
ret = usb_host_scan(&fs, usb_host_find_device_scan); |
| 863 |
if (ret) {
|
| 864 |
*pbus_num = fs.bus_num; |
| 865 |
*paddr = fs.addr; |
| 866 |
pstrcpy(product_name, product_name_size, fs.product_name); |
| 867 |
return 0; |
| 868 |
} |
| 869 |
} |
| 870 |
return -1; |
| 871 |
} |
| 872 |
|
| 873 |
/**********************/
|
| 874 |
/* USB host device info */
|
| 875 |
|
| 876 |
struct usb_class_info {
|
| 877 |
int class;
|
| 878 |
const char *class_name; |
| 879 |
}; |
| 880 |
|
| 881 |
static const struct usb_class_info usb_class_info[] = { |
| 882 |
{ USB_CLASS_AUDIO, "Audio"},
|
| 883 |
{ USB_CLASS_COMM, "Communication"},
|
| 884 |
{ USB_CLASS_HID, "HID"},
|
| 885 |
{ USB_CLASS_HUB, "Hub" },
|
| 886 |
{ USB_CLASS_PHYSICAL, "Physical" },
|
| 887 |
{ USB_CLASS_PRINTER, "Printer" },
|
| 888 |
{ USB_CLASS_MASS_STORAGE, "Storage" },
|
| 889 |
{ USB_CLASS_CDC_DATA, "Data" },
|
| 890 |
{ USB_CLASS_APP_SPEC, "Application Specific" },
|
| 891 |
{ USB_CLASS_VENDOR_SPEC, "Vendor Specific" },
|
| 892 |
{ USB_CLASS_STILL_IMAGE, "Still Image" },
|
| 893 |
{ USB_CLASS_CSCID, "Smart Card" },
|
| 894 |
{ USB_CLASS_CONTENT_SEC, "Content Security" },
|
| 895 |
{ -1, NULL }
|
| 896 |
}; |
| 897 |
|
| 898 |
static const char *usb_class_str(uint8_t class) |
| 899 |
{
|
| 900 |
const struct usb_class_info *p; |
| 901 |
for(p = usb_class_info; p->class != -1; p++) { |
| 902 |
if (p->class == class)
|
| 903 |
break;
|
| 904 |
} |
| 905 |
return p->class_name;
|
| 906 |
} |
| 907 |
|
| 908 |
void usb_info_device(int bus_num, int addr, int class_id, |
| 909 |
int vendor_id, int product_id, |
| 910 |
const char *product_name, |
| 911 |
int speed)
|
| 912 |
{
|
| 913 |
const char *class_str, *speed_str; |
| 914 |
|
| 915 |
switch(speed) {
|
| 916 |
case USB_SPEED_LOW:
|
| 917 |
speed_str = "1.5";
|
| 918 |
break;
|
| 919 |
case USB_SPEED_FULL:
|
| 920 |
speed_str = "12";
|
| 921 |
break;
|
| 922 |
case USB_SPEED_HIGH:
|
| 923 |
speed_str = "480";
|
| 924 |
break;
|
| 925 |
default:
|
| 926 |
speed_str = "?";
|
| 927 |
break;
|
| 928 |
} |
| 929 |
|
| 930 |
term_printf(" Device %d.%d, speed %s Mb/s\n",
|
| 931 |
bus_num, addr, speed_str); |
| 932 |
class_str = usb_class_str(class_id); |
| 933 |
if (class_str)
|
| 934 |
term_printf(" %s:", class_str);
|
| 935 |
else
|
| 936 |
term_printf(" Class %02x:", class_id);
|
| 937 |
term_printf(" USB device %04x:%04x", vendor_id, product_id);
|
| 938 |
if (product_name[0] != '\0') |
| 939 |
term_printf(", %s", product_name);
|
| 940 |
term_printf("\n");
|
| 941 |
} |
| 942 |
|
| 943 |
static int usb_host_info_device(void *opaque, int bus_num, int addr, |
| 944 |
int class_id,
|
| 945 |
int vendor_id, int product_id, |
| 946 |
const char *product_name, |
| 947 |
int speed)
|
| 948 |
{
|
| 949 |
usb_info_device(bus_num, addr, class_id, vendor_id, product_id, |
| 950 |
product_name, speed); |
| 951 |
return 0; |
| 952 |
} |
| 953 |
|
| 954 |
void usb_host_info(void) |
| 955 |
{
|
| 956 |
usb_host_scan(NULL, usb_host_info_device);
|
| 957 |
} |
| 958 |
|
| 959 |
#else
|
| 960 |
|
| 961 |
void usb_host_info(void) |
| 962 |
{
|
| 963 |
term_printf("USB host devices not supported\n");
|
| 964 |
} |
| 965 |
|
| 966 |
/* XXX: modify configure to compile the right host driver */
|
| 967 |
USBDevice *usb_host_device_open(const char *devname) |
| 968 |
{
|
| 969 |
return NULL; |
| 970 |
} |
| 971 |
|
| 972 |
#endif
|