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![balrog](/assets/img/avatar_default.png)
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3329 c046a42c-6fe2-441c-8c8c-71466251a162
966 lines
26 KiB
C
966 lines
26 KiB
C
/*
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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"
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#if defined(__linux__)
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#include <dirent.h>
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#include <sys/ioctl.h>
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#include <linux/usbdevice_fs.h>
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#include <linux/version.h>
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#include <signal.h>
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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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typedef int USBScanFunc(void *opaque, int bus_num, int addr, int class_id,
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int vendor_id, int product_id,
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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);
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//#define DEBUG
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//#define DEBUG_ISOCH
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//#define USE_ASYNCIO
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#define USBDEVFS_PATH "/proc/bus/usb"
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#define PRODUCT_NAME_SZ 32
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#define SIG_ISOCOMPLETE (SIGRTMIN+7)
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#define MAX_ENDPOINTS 16
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struct sigaction sigact;
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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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/* FIXME: move USBPacket to PendingURB */
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typedef struct USBHostDevice {
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USBDevice dev;
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int fd;
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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;
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typedef struct PendingURB {
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struct usbdevfs_urb *urb;
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USBHostDevice *dev;
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QEMUBH *bh;
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int status;
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struct PendingURB *next;
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} PendingURB;
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static PendingURB *pending_urbs = NULL;
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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->dev = NULL;
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purb->bh = NULL;
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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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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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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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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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#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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while (purb && purb->urb != urb) {
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purb = purb->next;
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}
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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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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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if (configuration == 0) /* address state - ignore */
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return 1;
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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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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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if (configuration == dev->descr[i + 5])
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break;
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i += config_descr_len;
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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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#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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/* 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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#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;
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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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static void usb_host_handle_destroy(USBDevice *dev)
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{
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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);
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}
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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;
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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);
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}
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if (ret < 0) {
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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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}
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} 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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}
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static int usb_host_handle_isoch(USBDevice *dev, USBPacket *p);
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static int usb_host_handle_data(USBDevice *dev, USBPacket *p)
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{
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USBHostDevice *s = (USBHostDevice *)dev;
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struct usbdevfs_bulktransfer bt;
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int ret;
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uint8_t devep = p->devep;
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if (s->endp_table[p->devep - 1].type == USBDEVFS_URB_TYPE_ISO) {
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return usb_host_handle_isoch(dev, p);
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}
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/* XXX: optimize and handle all data types by looking at the
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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;
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bt.len = p->len;
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bt.timeout = 50;
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bt.data = p->data;
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ret = ioctl(s->fd, USBDEVFS_BULK, &bt);
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if (ret < 0) {
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switch(errno) {
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case ETIMEDOUT:
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return USB_RET_NAK;
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case EPIPE:
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default:
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#ifdef DEBUG
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printf("handle_data: errno=%d\n", errno);
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#endif
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return USB_RET_STALL;
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}
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} else {
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return ret;
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}
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}
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#ifdef USE_ASYNCIO
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static void usb_linux_bh_cb(void *opaque)
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{
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PendingURB *pending_urb = (PendingURB *)opaque;
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USBHostDevice *s = pending_urb->dev;
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struct usbdevfs_urb *purb = NULL;
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USBPacket *p = s->packet;
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int ret;
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/* FIXME: handle purb->status */
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qemu_free(pending_urb->bh);
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del_pending_urb(pending_urb->urb);
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if (!p) {
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s->urbs_ready++;
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return;
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}
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ret = ioctl(s->fd, USBDEVFS_REAPURBNDELAY, &purb);
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if (ret < 0) {
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printf("usb_linux_bh_cb: REAPURBNDELAY ioctl=%d errno=%d\n",
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ret, errno);
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return;
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}
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#ifdef DEBUG_ISOCH
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if (purb == pending_urb->urb) {
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printf("usb_linux_bh_cb: urb mismatch reaped=%p pending=%p\n",
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purb, urb);
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}
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#endif
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p->len = purb->actual_length;
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usb_packet_complete(p);
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qemu_free(purb);
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s->packet = NULL;
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}
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static void isoch_done(int signum, siginfo_t *info, void *context)
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{
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struct usbdevfs_urb *urb = (struct usbdevfs_urb *)info->si_addr;
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USBHostDevice *s = (USBHostDevice *)urb->usercontext;
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PendingURB *purb;
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if (info->si_code != SI_ASYNCIO ||
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info->si_signo != SIG_ISOCOMPLETE) {
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return;
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}
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|
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purb = get_pending_urb(urb);
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if (purb) {
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purb->bh = qemu_bh_new(usb_linux_bh_cb, purb);
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if (purb->bh) {
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purb->dev = s;
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purb->status = info->si_errno;
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qemu_bh_schedule(purb->bh);
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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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static int usb_host_handle_isoch(USBDevice *dev, USBPacket *p)
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{
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USBHostDevice *s = (USBHostDevice *)dev;
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struct usbdevfs_urb *urb, *purb = NULL;
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int ret;
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uint8_t devep = p->devep;
|
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|
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if (p->pid == USB_TOKEN_IN)
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devep |= 0x80;
|
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|
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urb = qemu_mallocz(sizeof(struct usbdevfs_urb) +
|
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sizeof(struct usbdevfs_iso_packet_desc));
|
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if (!urb) {
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printf("usb_host_handle_isoch: malloc failed\n");
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return 0;
|
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}
|
|
|
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urb->type = USBDEVFS_URB_TYPE_ISO;
|
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urb->endpoint = devep;
|
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urb->status = 0;
|
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urb->flags = USBDEVFS_URB_ISO_ASAP;
|
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urb->buffer = p->data;
|
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urb->buffer_length = p->len;
|
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urb->actual_length = 0;
|
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urb->start_frame = 0;
|
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urb->error_count = 0;
|
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#ifdef USE_ASYNCIO
|
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urb->signr = SIG_ISOCOMPLETE;
|
|
#else
|
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urb->signr = 0;
|
|
#endif
|
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urb->usercontext = s;
|
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urb->number_of_packets = 1;
|
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urb->iso_frame_desc[0].length = p->len;
|
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urb->iso_frame_desc[0].actual_length = 0;
|
|
urb->iso_frame_desc[0].status = 0;
|
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ret = ioctl(s->fd, USBDEVFS_SUBMITURB, urb);
|
|
if (ret == 0) {
|
|
if (!add_pending_urb(urb)) {
|
|
printf("usb_host_handle_isoch: add_pending_urb failed %p\n", urb);
|
|
}
|
|
} else {
|
|
printf("usb_host_handle_isoch: SUBMITURB ioctl=%d errno=%d\n",
|
|
ret, errno);
|
|
qemu_free(urb);
|
|
switch(errno) {
|
|
case ETIMEDOUT:
|
|
return USB_RET_NAK;
|
|
case EPIPE:
|
|
default:
|
|
return USB_RET_STALL;
|
|
}
|
|
}
|
|
#ifdef USE_ASYNCIO
|
|
/* FIXME: handle urbs_ready together with sync io
|
|
* workaround for injecting the signaled urbs into current frame */
|
|
if (s->urbs_ready > 0) {
|
|
ret = ioctl(s->fd, USBDEVFS_REAPURBNDELAY, &purb);
|
|
if (ret == 0) {
|
|
ret = purb->actual_length;
|
|
qemu_free(purb);
|
|
s->urbs_ready--;
|
|
}
|
|
return ret;
|
|
}
|
|
s->packet = p;
|
|
return USB_RET_ASYNC;
|
|
#else
|
|
ret = ioctl(s->fd, USBDEVFS_REAPURBNDELAY, &purb);
|
|
if (ret == 0) {
|
|
if (del_pending_urb(purb)) {
|
|
ret = purb->actual_length;
|
|
qemu_free(purb);
|
|
} else {
|
|
printf("usb_host_handle_isoch: del_pending_urb failed %p\n", purb);
|
|
}
|
|
} else {
|
|
#ifdef DEBUG_ISOCH
|
|
printf("usb_host_handle_isoch: REAPURBNDELAY ioctl=%d errno=%d\n",
|
|
ret, errno);
|
|
#endif
|
|
}
|
|
return ret;
|
|
#endif
|
|
}
|
|
|
|
/* returns 1 on problem encountered or 0 for success */
|
|
static int usb_linux_update_endp_table(USBHostDevice *s)
|
|
{
|
|
uint8_t *descriptors;
|
|
uint8_t devep, type, configuration, alt_interface;
|
|
struct usb_ctrltransfer ct;
|
|
int interface, ret, length, i;
|
|
|
|
ct.bRequestType = USB_DIR_IN;
|
|
ct.bRequest = USB_REQ_GET_CONFIGURATION;
|
|
ct.wValue = 0;
|
|
ct.wIndex = 0;
|
|
ct.wLength = 1;
|
|
ct.data = &configuration;
|
|
ct.timeout = 50;
|
|
|
|
ret = ioctl(s->fd, USBDEVFS_CONTROL, &ct);
|
|
if (ret < 0) {
|
|
perror("usb_linux_update_endp_table");
|
|
return 1;
|
|
}
|
|
|
|
/* in address state */
|
|
if (configuration == 0)
|
|
return 1;
|
|
|
|
/* get the desired configuration, interface, and endpoint descriptors
|
|
* from device description */
|
|
descriptors = &s->descr[18];
|
|
length = s->descr_len - 18;
|
|
i = 0;
|
|
|
|
if (descriptors[i + 1] != USB_DT_CONFIG ||
|
|
descriptors[i + 5] != configuration) {
|
|
printf("invalid descriptor data - configuration\n");
|
|
return 1;
|
|
}
|
|
i += descriptors[i];
|
|
|
|
while (i < length) {
|
|
if (descriptors[i + 1] != USB_DT_INTERFACE ||
|
|
(descriptors[i + 1] == USB_DT_INTERFACE &&
|
|
descriptors[i + 4] == 0)) {
|
|
i += descriptors[i];
|
|
continue;
|
|
}
|
|
|
|
interface = descriptors[i + 2];
|
|
|
|
ct.bRequestType = USB_DIR_IN | USB_RECIP_INTERFACE;
|
|
ct.bRequest = USB_REQ_GET_INTERFACE;
|
|
ct.wValue = 0;
|
|
ct.wIndex = interface;
|
|
ct.wLength = 1;
|
|
ct.data = &alt_interface;
|
|
ct.timeout = 50;
|
|
|
|
ret = ioctl(s->fd, USBDEVFS_CONTROL, &ct);
|
|
if (ret < 0) {
|
|
perror("usb_linux_update_endp_table");
|
|
return 1;
|
|
}
|
|
|
|
/* the current interface descriptor is the active interface
|
|
* and has endpoints */
|
|
if (descriptors[i + 3] != alt_interface) {
|
|
i += descriptors[i];
|
|
continue;
|
|
}
|
|
|
|
/* advance to the endpoints */
|
|
while (i < length && descriptors[i +1] != USB_DT_ENDPOINT)
|
|
i += descriptors[i];
|
|
|
|
if (i >= length)
|
|
break;
|
|
|
|
while (i < length) {
|
|
if (descriptors[i + 1] != USB_DT_ENDPOINT)
|
|
break;
|
|
|
|
devep = descriptors[i + 2];
|
|
switch (descriptors[i + 3] & 0x3) {
|
|
case 0x00:
|
|
type = USBDEVFS_URB_TYPE_CONTROL;
|
|
break;
|
|
case 0x01:
|
|
type = USBDEVFS_URB_TYPE_ISO;
|
|
break;
|
|
case 0x02:
|
|
type = USBDEVFS_URB_TYPE_BULK;
|
|
break;
|
|
case 0x03:
|
|
type = USBDEVFS_URB_TYPE_INTERRUPT;
|
|
break;
|
|
default:
|
|
printf("usb_host: malformed endpoint type\n");
|
|
type = USBDEVFS_URB_TYPE_BULK;
|
|
}
|
|
s->endp_table[(devep & 0xf) - 1].type = type;
|
|
|
|
i += descriptors[i];
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* XXX: exclude high speed devices or implement EHCI */
|
|
USBDevice *usb_host_device_open(const char *devname)
|
|
{
|
|
int fd = -1, ret;
|
|
USBHostDevice *dev = NULL;
|
|
struct usbdevfs_connectinfo ci;
|
|
char buf[1024];
|
|
int bus_num, addr;
|
|
char product_name[PRODUCT_NAME_SZ];
|
|
|
|
dev = qemu_mallocz(sizeof(USBHostDevice));
|
|
if (!dev)
|
|
goto fail;
|
|
|
|
#ifdef DEBUG_ISOCH
|
|
printf("usb_host_device_open %s\n", devname);
|
|
#endif
|
|
if (usb_host_find_device(&bus_num, &addr,
|
|
product_name, sizeof(product_name),
|
|
devname) < 0)
|
|
return NULL;
|
|
|
|
snprintf(buf, sizeof(buf), USBDEVFS_PATH "/%03d/%03d",
|
|
bus_num, addr);
|
|
fd = open(buf, O_RDWR | O_NONBLOCK);
|
|
if (fd < 0) {
|
|
perror(buf);
|
|
return NULL;
|
|
}
|
|
|
|
/* read the device description */
|
|
dev->descr_len = read(fd, dev->descr, sizeof(dev->descr));
|
|
if (dev->descr_len <= 0) {
|
|
perror("usb_host_update_interfaces: reading device data failed");
|
|
goto fail;
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
{
|
|
int x;
|
|
printf("=== begin dumping device descriptor data ===\n");
|
|
for (x = 0; x < dev->descr_len; x++)
|
|
printf("%02x ", dev->descr[x]);
|
|
printf("\n=== end dumping device descriptor data ===\n");
|
|
}
|
|
#endif
|
|
|
|
dev->fd = fd;
|
|
dev->configuration = 1;
|
|
|
|
/* XXX - do something about initial configuration */
|
|
if (!usb_host_update_interfaces(dev, 1))
|
|
goto fail;
|
|
|
|
ret = ioctl(fd, USBDEVFS_CONNECTINFO, &ci);
|
|
if (ret < 0) {
|
|
perror("USBDEVFS_CONNECTINFO");
|
|
goto fail;
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
printf("host USB device %d.%d grabbed\n", bus_num, addr);
|
|
#endif
|
|
|
|
ret = usb_linux_update_endp_table(dev);
|
|
if (ret)
|
|
goto fail;
|
|
|
|
if (ci.slow)
|
|
dev->dev.speed = USB_SPEED_LOW;
|
|
else
|
|
dev->dev.speed = USB_SPEED_HIGH;
|
|
dev->dev.handle_packet = usb_generic_handle_packet;
|
|
|
|
dev->dev.handle_reset = usb_host_handle_reset;
|
|
dev->dev.handle_control = usb_host_handle_control;
|
|
dev->dev.handle_data = usb_host_handle_data;
|
|
dev->dev.handle_destroy = usb_host_handle_destroy;
|
|
|
|
if (product_name[0] == '\0')
|
|
snprintf(dev->dev.devname, sizeof(dev->dev.devname),
|
|
"host:%s", devname);
|
|
else
|
|
pstrcpy(dev->dev.devname, sizeof(dev->dev.devname),
|
|
product_name);
|
|
|
|
#ifdef USE_ASYNCIO
|
|
/* set up the signal handlers */
|
|
sigemptyset(&sigact.sa_mask);
|
|
sigact.sa_sigaction = isoch_done;
|
|
sigact.sa_flags = SA_SIGINFO;
|
|
sigact.sa_restorer = 0;
|
|
ret = sigaction(SIG_ISOCOMPLETE, &sigact, NULL);
|
|
if (ret < 0) {
|
|
printf("sigaction SIG_ISOCOMPLETE=%d errno=%d\n", ret, errno);
|
|
}
|
|
#endif
|
|
dev->urbs_ready = 0;
|
|
return (USBDevice *)dev;
|
|
fail:
|
|
if (dev)
|
|
qemu_free(dev);
|
|
close(fd);
|
|
return NULL;
|
|
}
|
|
|
|
static int get_tag_value(char *buf, int buf_size,
|
|
const char *str, const char *tag,
|
|
const char *stopchars)
|
|
{
|
|
const char *p;
|
|
char *q;
|
|
p = strstr(str, tag);
|
|
if (!p)
|
|
return -1;
|
|
p += strlen(tag);
|
|
while (isspace(*p))
|
|
p++;
|
|
q = buf;
|
|
while (*p != '\0' && !strchr(stopchars, *p)) {
|
|
if ((q - buf) < (buf_size - 1))
|
|
*q++ = *p;
|
|
p++;
|
|
}
|
|
*q = '\0';
|
|
return q - buf;
|
|
}
|
|
|
|
static int usb_host_scan(void *opaque, USBScanFunc *func)
|
|
{
|
|
FILE *f;
|
|
char line[1024];
|
|
char buf[1024];
|
|
int bus_num, addr, speed, device_count, class_id, product_id, vendor_id;
|
|
int ret;
|
|
char product_name[512];
|
|
|
|
f = fopen(USBDEVFS_PATH "/devices", "r");
|
|
if (!f) {
|
|
term_printf("Could not open %s\n", USBDEVFS_PATH "/devices");
|
|
return 0;
|
|
}
|
|
device_count = 0;
|
|
bus_num = addr = speed = class_id = product_id = vendor_id = 0;
|
|
ret = 0;
|
|
for(;;) {
|
|
if (fgets(line, sizeof(line), f) == NULL)
|
|
break;
|
|
if (strlen(line) > 0)
|
|
line[strlen(line) - 1] = '\0';
|
|
if (line[0] == 'T' && line[1] == ':') {
|
|
if (device_count && (vendor_id || product_id)) {
|
|
/* New device. Add the previously discovered device. */
|
|
ret = func(opaque, bus_num, addr, class_id, vendor_id,
|
|
product_id, product_name, speed);
|
|
if (ret)
|
|
goto the_end;
|
|
}
|
|
if (get_tag_value(buf, sizeof(buf), line, "Bus=", " ") < 0)
|
|
goto fail;
|
|
bus_num = atoi(buf);
|
|
if (get_tag_value(buf, sizeof(buf), line, "Dev#=", " ") < 0)
|
|
goto fail;
|
|
addr = atoi(buf);
|
|
if (get_tag_value(buf, sizeof(buf), line, "Spd=", " ") < 0)
|
|
goto fail;
|
|
if (!strcmp(buf, "480"))
|
|
speed = USB_SPEED_HIGH;
|
|
else if (!strcmp(buf, "1.5"))
|
|
speed = USB_SPEED_LOW;
|
|
else
|
|
speed = USB_SPEED_FULL;
|
|
product_name[0] = '\0';
|
|
class_id = 0xff;
|
|
device_count++;
|
|
product_id = 0;
|
|
vendor_id = 0;
|
|
} else if (line[0] == 'P' && line[1] == ':') {
|
|
if (get_tag_value(buf, sizeof(buf), line, "Vendor=", " ") < 0)
|
|
goto fail;
|
|
vendor_id = strtoul(buf, NULL, 16);
|
|
if (get_tag_value(buf, sizeof(buf), line, "ProdID=", " ") < 0)
|
|
goto fail;
|
|
product_id = strtoul(buf, NULL, 16);
|
|
} else if (line[0] == 'S' && line[1] == ':') {
|
|
if (get_tag_value(buf, sizeof(buf), line, "Product=", "") < 0)
|
|
goto fail;
|
|
pstrcpy(product_name, sizeof(product_name), buf);
|
|
} else if (line[0] == 'D' && line[1] == ':') {
|
|
if (get_tag_value(buf, sizeof(buf), line, "Cls=", " (") < 0)
|
|
goto fail;
|
|
class_id = strtoul(buf, NULL, 16);
|
|
}
|
|
fail: ;
|
|
}
|
|
if (device_count && (vendor_id || product_id)) {
|
|
/* Add the last device. */
|
|
ret = func(opaque, bus_num, addr, class_id, vendor_id,
|
|
product_id, product_name, speed);
|
|
}
|
|
the_end:
|
|
fclose(f);
|
|
return ret;
|
|
}
|
|
|
|
typedef struct FindDeviceState {
|
|
int vendor_id;
|
|
int product_id;
|
|
int bus_num;
|
|
int addr;
|
|
char product_name[PRODUCT_NAME_SZ];
|
|
} FindDeviceState;
|
|
|
|
static int usb_host_find_device_scan(void *opaque, int bus_num, int addr,
|
|
int class_id,
|
|
int vendor_id, int product_id,
|
|
const char *product_name, int speed)
|
|
{
|
|
FindDeviceState *s = opaque;
|
|
if ((vendor_id == s->vendor_id &&
|
|
product_id == s->product_id) ||
|
|
(bus_num == s->bus_num &&
|
|
addr == s->addr)) {
|
|
pstrcpy(s->product_name, PRODUCT_NAME_SZ, product_name);
|
|
s->bus_num = bus_num;
|
|
s->addr = addr;
|
|
return 1;
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/* the syntax is :
|
|
'bus.addr' (decimal numbers) or
|
|
'vendor_id:product_id' (hexa numbers) */
|
|
static int usb_host_find_device(int *pbus_num, int *paddr,
|
|
char *product_name, int product_name_size,
|
|
const char *devname)
|
|
{
|
|
const char *p;
|
|
int ret;
|
|
FindDeviceState fs;
|
|
|
|
p = strchr(devname, '.');
|
|
if (p) {
|
|
*pbus_num = strtoul(devname, NULL, 0);
|
|
*paddr = strtoul(p + 1, NULL, 0);
|
|
fs.bus_num = *pbus_num;
|
|
fs.addr = *paddr;
|
|
ret = usb_host_scan(&fs, usb_host_find_device_scan);
|
|
if (ret)
|
|
pstrcpy(product_name, product_name_size, fs.product_name);
|
|
return 0;
|
|
}
|
|
p = strchr(devname, ':');
|
|
if (p) {
|
|
fs.vendor_id = strtoul(devname, NULL, 16);
|
|
fs.product_id = strtoul(p + 1, NULL, 16);
|
|
ret = usb_host_scan(&fs, usb_host_find_device_scan);
|
|
if (ret) {
|
|
*pbus_num = fs.bus_num;
|
|
*paddr = fs.addr;
|
|
pstrcpy(product_name, product_name_size, fs.product_name);
|
|
return 0;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
/**********************/
|
|
/* USB host device info */
|
|
|
|
struct usb_class_info {
|
|
int class;
|
|
const char *class_name;
|
|
};
|
|
|
|
static const struct usb_class_info usb_class_info[] = {
|
|
{ USB_CLASS_AUDIO, "Audio"},
|
|
{ USB_CLASS_COMM, "Communication"},
|
|
{ USB_CLASS_HID, "HID"},
|
|
{ USB_CLASS_HUB, "Hub" },
|
|
{ USB_CLASS_PHYSICAL, "Physical" },
|
|
{ USB_CLASS_PRINTER, "Printer" },
|
|
{ USB_CLASS_MASS_STORAGE, "Storage" },
|
|
{ USB_CLASS_CDC_DATA, "Data" },
|
|
{ USB_CLASS_APP_SPEC, "Application Specific" },
|
|
{ USB_CLASS_VENDOR_SPEC, "Vendor Specific" },
|
|
{ USB_CLASS_STILL_IMAGE, "Still Image" },
|
|
{ USB_CLASS_CSCID, "Smart Card" },
|
|
{ USB_CLASS_CONTENT_SEC, "Content Security" },
|
|
{ -1, NULL }
|
|
};
|
|
|
|
static const char *usb_class_str(uint8_t class)
|
|
{
|
|
const struct usb_class_info *p;
|
|
for(p = usb_class_info; p->class != -1; p++) {
|
|
if (p->class == class)
|
|
break;
|
|
}
|
|
return p->class_name;
|
|
}
|
|
|
|
void usb_info_device(int bus_num, int addr, int class_id,
|
|
int vendor_id, int product_id,
|
|
const char *product_name,
|
|
int speed)
|
|
{
|
|
const char *class_str, *speed_str;
|
|
|
|
switch(speed) {
|
|
case USB_SPEED_LOW:
|
|
speed_str = "1.5";
|
|
break;
|
|
case USB_SPEED_FULL:
|
|
speed_str = "12";
|
|
break;
|
|
case USB_SPEED_HIGH:
|
|
speed_str = "480";
|
|
break;
|
|
default:
|
|
speed_str = "?";
|
|
break;
|
|
}
|
|
|
|
term_printf(" Device %d.%d, speed %s Mb/s\n",
|
|
bus_num, addr, speed_str);
|
|
class_str = usb_class_str(class_id);
|
|
if (class_str)
|
|
term_printf(" %s:", class_str);
|
|
else
|
|
term_printf(" Class %02x:", class_id);
|
|
term_printf(" USB device %04x:%04x", vendor_id, product_id);
|
|
if (product_name[0] != '\0')
|
|
term_printf(", %s", product_name);
|
|
term_printf("\n");
|
|
}
|
|
|
|
static int usb_host_info_device(void *opaque, int bus_num, int addr,
|
|
int class_id,
|
|
int vendor_id, int product_id,
|
|
const char *product_name,
|
|
int speed)
|
|
{
|
|
usb_info_device(bus_num, addr, class_id, vendor_id, product_id,
|
|
product_name, speed);
|
|
return 0;
|
|
}
|
|
|
|
void usb_host_info(void)
|
|
{
|
|
usb_host_scan(NULL, usb_host_info_device);
|
|
}
|
|
|
|
#else
|
|
|
|
void usb_host_info(void)
|
|
{
|
|
term_printf("USB host devices not supported\n");
|
|
}
|
|
|
|
/* XXX: modify configure to compile the right host driver */
|
|
USBDevice *usb_host_device_open(const char *devname)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
#endif
|