root / hw / usb / host-linux.c @ 1de7afc9
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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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* Copyright (c) 2008 Max Krasnyansky
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* Support for host device auto connect & disconnect
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* Major rewrite to support fully async operation
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*
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* Copyright 2008 TJ <linux@tjworld.net>
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* Added flexible support for /dev/bus/usb /sys/bus/usb/devices in addition
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* to the legacy /proc/bus/usb USB device discovery and handling
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "qemu-common.h" |
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#include "qemu/timer.h" |
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#include "monitor/monitor.h" |
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#include "sysemu.h" |
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#include "trace.h" |
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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 "hw/usb.h" |
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#include "hw/usb/desc.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, const char *port, |
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int class_id, int vendor_id, int product_id, |
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const char *product_name, int speed); |
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//#define DEBUG
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#ifdef DEBUG
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#define DPRINTF printf
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#else
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#define DPRINTF(...)
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#endif
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|
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#define PRODUCT_NAME_SZ 32 |
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#define MAX_PORTLEN 16 |
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/* endpoint association data */
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#define ISO_FRAME_DESC_PER_URB 32 |
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|
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/* devio.c limits single requests to 16k */
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#define MAX_USBFS_BUFFER_SIZE 16384 |
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typedef struct AsyncURB AsyncURB; |
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|
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struct endp_data {
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uint8_t halted; |
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uint8_t iso_started; |
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AsyncURB *iso_urb; |
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int iso_urb_idx;
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int iso_buffer_used;
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int inflight;
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}; |
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struct USBAutoFilter {
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uint32_t bus_num; |
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uint32_t addr; |
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char *port;
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uint32_t vendor_id; |
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uint32_t product_id; |
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}; |
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enum USBHostDeviceOptions {
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USB_HOST_OPT_PIPELINE, |
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}; |
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typedef struct USBHostDevice { |
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USBDevice dev; |
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int fd;
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int hub_fd;
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int hub_port;
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uint8_t descr[8192];
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int descr_len;
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int closing;
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uint32_t iso_urb_count; |
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uint32_t options; |
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Notifier exit; |
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QEMUBH *bh; |
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struct endp_data ep_in[USB_MAX_ENDPOINTS];
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struct endp_data ep_out[USB_MAX_ENDPOINTS];
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QLIST_HEAD(, AsyncURB) aurbs; |
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/* Host side address */
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int bus_num;
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int addr;
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char port[MAX_PORTLEN];
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struct USBAutoFilter match;
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int32_t bootindex; |
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int seen, errcount;
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QTAILQ_ENTRY(USBHostDevice) next; |
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} USBHostDevice; |
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static QTAILQ_HEAD(, USBHostDevice) hostdevs = QTAILQ_HEAD_INITIALIZER(hostdevs);
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static int usb_host_close(USBHostDevice *dev); |
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static int parse_filter(const char *spec, struct USBAutoFilter *f); |
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static void usb_host_auto_check(void *unused); |
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static int usb_host_read_file(char *line, size_t line_size, |
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const char *device_file, const char *device_name); |
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static void usb_linux_update_endp_table(USBHostDevice *s); |
139 |
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static int usb_host_usbfs_type(USBHostDevice *s, USBPacket *p) |
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{ |
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static const int usbfs[] = { |
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[USB_ENDPOINT_XFER_CONTROL] = USBDEVFS_URB_TYPE_CONTROL, |
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[USB_ENDPOINT_XFER_ISOC] = USBDEVFS_URB_TYPE_ISO, |
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[USB_ENDPOINT_XFER_BULK] = USBDEVFS_URB_TYPE_BULK, |
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[USB_ENDPOINT_XFER_INT] = USBDEVFS_URB_TYPE_INTERRUPT, |
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}; |
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uint8_t type = p->ep->type; |
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assert(type < ARRAY_SIZE(usbfs)); |
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return usbfs[type];
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} |
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static int usb_host_do_reset(USBHostDevice *dev) |
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{ |
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struct timeval s, e;
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uint32_t usecs; |
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int ret;
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gettimeofday(&s, NULL);
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ret = ioctl(dev->fd, USBDEVFS_RESET); |
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gettimeofday(&e, NULL);
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usecs = (e.tv_sec - s.tv_sec) * 1000000;
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usecs += e.tv_usec - s.tv_usec; |
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if (usecs > 1000000) { |
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/* more than a second, something is fishy, broken usb device? */
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fprintf(stderr, "husb: device %d:%d reset took %d.%06d seconds\n",
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dev->bus_num, dev->addr, usecs / 1000000, usecs % 1000000); |
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} |
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return ret;
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} |
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static struct endp_data *get_endp(USBHostDevice *s, int pid, int ep) |
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{ |
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struct endp_data *eps = pid == USB_TOKEN_IN ? s->ep_in : s->ep_out;
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assert(pid == USB_TOKEN_IN || pid == USB_TOKEN_OUT); |
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assert(ep > 0 && ep <= USB_MAX_ENDPOINTS);
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return eps + ep - 1; |
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} |
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static int is_isoc(USBHostDevice *s, int pid, int ep) |
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{ |
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return usb_ep_get_type(&s->dev, pid, ep) == USB_ENDPOINT_XFER_ISOC;
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} |
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static int is_valid(USBHostDevice *s, int pid, int ep) |
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{ |
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return usb_ep_get_type(&s->dev, pid, ep) != USB_ENDPOINT_XFER_INVALID;
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} |
189 |
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static int is_halted(USBHostDevice *s, int pid, int ep) |
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{ |
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return get_endp(s, pid, ep)->halted;
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} |
194 |
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static void clear_halt(USBHostDevice *s, int pid, int ep) |
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{ |
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trace_usb_host_ep_clear_halt(s->bus_num, s->addr, ep); |
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get_endp(s, pid, ep)->halted = 0;
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} |
200 |
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static void set_halt(USBHostDevice *s, int pid, int ep) |
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{ |
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if (ep != 0) { |
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trace_usb_host_ep_set_halt(s->bus_num, s->addr, ep); |
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get_endp(s, pid, ep)->halted = 1;
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} |
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} |
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static int is_iso_started(USBHostDevice *s, int pid, int ep) |
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{ |
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return get_endp(s, pid, ep)->iso_started;
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} |
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static void clear_iso_started(USBHostDevice *s, int pid, int ep) |
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{ |
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trace_usb_host_iso_stop(s->bus_num, s->addr, ep); |
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get_endp(s, pid, ep)->iso_started = 0;
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} |
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static void set_iso_started(USBHostDevice *s, int pid, int ep) |
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{ |
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struct endp_data *e = get_endp(s, pid, ep);
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trace_usb_host_iso_start(s->bus_num, s->addr, ep); |
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if (!e->iso_started) {
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e->iso_started = 1;
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e->inflight = 0;
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} |
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} |
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static int change_iso_inflight(USBHostDevice *s, int pid, int ep, int value) |
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{ |
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struct endp_data *e = get_endp(s, pid, ep);
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e->inflight += value; |
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return e->inflight;
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} |
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static void set_iso_urb(USBHostDevice *s, int pid, int ep, AsyncURB *iso_urb) |
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{ |
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get_endp(s, pid, ep)->iso_urb = iso_urb; |
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} |
243 |
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static AsyncURB *get_iso_urb(USBHostDevice *s, int pid, int ep) |
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{ |
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return get_endp(s, pid, ep)->iso_urb;
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} |
248 |
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static void set_iso_urb_idx(USBHostDevice *s, int pid, int ep, int i) |
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{ |
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get_endp(s, pid, ep)->iso_urb_idx = i; |
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} |
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static int get_iso_urb_idx(USBHostDevice *s, int pid, int ep) |
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{ |
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return get_endp(s, pid, ep)->iso_urb_idx;
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} |
258 |
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static void set_iso_buffer_used(USBHostDevice *s, int pid, int ep, int i) |
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{ |
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get_endp(s, pid, ep)->iso_buffer_used = i; |
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} |
263 |
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static int get_iso_buffer_used(USBHostDevice *s, int pid, int ep) |
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{ |
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return get_endp(s, pid, ep)->iso_buffer_used;
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} |
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/*
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* Async URB state.
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* We always allocate iso packet descriptors even for bulk transfers
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* to simplify allocation and casts.
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*/
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struct AsyncURB
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{ |
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struct usbdevfs_urb urb;
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struct usbdevfs_iso_packet_desc isocpd[ISO_FRAME_DESC_PER_URB];
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USBHostDevice *hdev; |
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QLIST_ENTRY(AsyncURB) next; |
280 |
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/* For regular async urbs */
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USBPacket *packet; |
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int more; /* large transfer, more urbs follow */ |
284 |
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/* For buffered iso handling */
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int iso_frame_idx; /* -1 means in flight */ |
287 |
}; |
288 |
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static AsyncURB *async_alloc(USBHostDevice *s)
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{ |
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AsyncURB *aurb = g_malloc0(sizeof(AsyncURB));
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aurb->hdev = s; |
293 |
QLIST_INSERT_HEAD(&s->aurbs, aurb, next); |
294 |
return aurb;
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} |
296 |
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static void async_free(AsyncURB *aurb) |
298 |
{ |
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QLIST_REMOVE(aurb, next); |
300 |
g_free(aurb); |
301 |
} |
302 |
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static void do_disconnect(USBHostDevice *s) |
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{ |
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usb_host_close(s); |
306 |
usb_host_auto_check(NULL);
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} |
308 |
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static void async_complete(void *opaque) |
310 |
{ |
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USBHostDevice *s = opaque; |
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AsyncURB *aurb; |
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int urbs = 0; |
314 |
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while (1) { |
316 |
USBPacket *p; |
317 |
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318 |
int r = ioctl(s->fd, USBDEVFS_REAPURBNDELAY, &aurb);
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if (r < 0) { |
320 |
if (errno == EAGAIN) {
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321 |
if (urbs > 2) { |
322 |
/* indicates possible latency issues */
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trace_usb_host_iso_many_urbs(s->bus_num, s->addr, urbs); |
324 |
} |
325 |
return;
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} |
327 |
if (errno == ENODEV) {
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328 |
if (!s->closing) {
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trace_usb_host_disconnect(s->bus_num, s->addr); |
330 |
do_disconnect(s); |
331 |
} |
332 |
return;
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} |
334 |
|
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perror("USBDEVFS_REAPURBNDELAY");
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return;
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} |
338 |
|
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DPRINTF("husb: async completed. aurb %p status %d alen %d\n",
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aurb, aurb->urb.status, aurb->urb.actual_length); |
341 |
|
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/* If this is a buffered iso urb mark it as complete and don't do
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anything else (it is handled further in usb_host_handle_iso_data) */
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344 |
if (aurb->iso_frame_idx == -1) { |
345 |
int inflight;
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346 |
int pid = (aurb->urb.endpoint & USB_DIR_IN) ?
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347 |
USB_TOKEN_IN : USB_TOKEN_OUT; |
348 |
int ep = aurb->urb.endpoint & 0xf; |
349 |
if (aurb->urb.status == -EPIPE) {
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350 |
set_halt(s, pid, ep); |
351 |
} |
352 |
aurb->iso_frame_idx = 0;
|
353 |
urbs++; |
354 |
inflight = change_iso_inflight(s, pid, ep, -1);
|
355 |
if (inflight == 0 && is_iso_started(s, pid, ep)) { |
356 |
/* can be latency issues, or simply end of stream */
|
357 |
trace_usb_host_iso_out_of_bufs(s->bus_num, s->addr, ep); |
358 |
} |
359 |
continue;
|
360 |
} |
361 |
|
362 |
p = aurb->packet; |
363 |
trace_usb_host_urb_complete(s->bus_num, s->addr, aurb, aurb->urb.status, |
364 |
aurb->urb.actual_length, aurb->more); |
365 |
|
366 |
if (p) {
|
367 |
switch (aurb->urb.status) {
|
368 |
case 0: |
369 |
p->actual_length += aurb->urb.actual_length; |
370 |
if (!aurb->more) {
|
371 |
/* Clear previous ASYNC status */
|
372 |
p->status = USB_RET_SUCCESS; |
373 |
} |
374 |
break;
|
375 |
|
376 |
case -EPIPE:
|
377 |
set_halt(s, p->pid, p->ep->nr); |
378 |
p->status = USB_RET_STALL; |
379 |
break;
|
380 |
|
381 |
case -EOVERFLOW:
|
382 |
p->status = USB_RET_BABBLE; |
383 |
break;
|
384 |
|
385 |
default:
|
386 |
p->status = USB_RET_IOERROR; |
387 |
break;
|
388 |
} |
389 |
|
390 |
if (aurb->urb.type == USBDEVFS_URB_TYPE_CONTROL) {
|
391 |
trace_usb_host_req_complete(s->bus_num, s->addr, p, |
392 |
p->status, aurb->urb.actual_length); |
393 |
usb_generic_async_ctrl_complete(&s->dev, p); |
394 |
} else if (!aurb->more) { |
395 |
trace_usb_host_req_complete(s->bus_num, s->addr, p, |
396 |
p->status, aurb->urb.actual_length); |
397 |
usb_packet_complete(&s->dev, p); |
398 |
} |
399 |
} |
400 |
|
401 |
async_free(aurb); |
402 |
} |
403 |
} |
404 |
|
405 |
static void usb_host_async_cancel(USBDevice *dev, USBPacket *p) |
406 |
{ |
407 |
USBHostDevice *s = DO_UPCAST(USBHostDevice, dev, dev); |
408 |
AsyncURB *aurb; |
409 |
|
410 |
trace_usb_host_req_canceled(s->bus_num, s->addr, p); |
411 |
|
412 |
QLIST_FOREACH(aurb, &s->aurbs, next) { |
413 |
if (p != aurb->packet) {
|
414 |
continue;
|
415 |
} |
416 |
|
417 |
trace_usb_host_urb_canceled(s->bus_num, s->addr, aurb); |
418 |
|
419 |
/* Mark it as dead (see async_complete above) */
|
420 |
aurb->packet = NULL;
|
421 |
|
422 |
int r = ioctl(s->fd, USBDEVFS_DISCARDURB, aurb);
|
423 |
if (r < 0) { |
424 |
DPRINTF("husb: async. discard urb failed errno %d\n", errno);
|
425 |
} |
426 |
} |
427 |
} |
428 |
|
429 |
static int usb_host_open_device(int bus, int addr) |
430 |
{ |
431 |
const char *usbfs = NULL; |
432 |
char filename[32]; |
433 |
struct stat st;
|
434 |
int fd, rc;
|
435 |
|
436 |
rc = stat("/dev/bus/usb", &st);
|
437 |
if (rc == 0 && S_ISDIR(st.st_mode)) { |
438 |
/* udev-created device nodes available */
|
439 |
usbfs = "/dev/bus/usb";
|
440 |
} else {
|
441 |
/* fallback: usbfs mounted below /proc */
|
442 |
usbfs = "/proc/bus/usb";
|
443 |
} |
444 |
|
445 |
snprintf(filename, sizeof(filename), "%s/%03d/%03d", |
446 |
usbfs, bus, addr); |
447 |
fd = open(filename, O_RDWR | O_NONBLOCK); |
448 |
if (fd < 0) { |
449 |
fprintf(stderr, "husb: open %s: %s\n", filename, strerror(errno));
|
450 |
} |
451 |
return fd;
|
452 |
} |
453 |
|
454 |
static int usb_host_claim_port(USBHostDevice *s) |
455 |
{ |
456 |
#ifdef USBDEVFS_CLAIM_PORT
|
457 |
char *h, hub_name[64], line[1024]; |
458 |
int hub_addr, ret;
|
459 |
|
460 |
snprintf(hub_name, sizeof(hub_name), "%d-%s", |
461 |
s->match.bus_num, s->match.port); |
462 |
|
463 |
/* try strip off last ".$portnr" to get hub */
|
464 |
h = strrchr(hub_name, '.');
|
465 |
if (h != NULL) { |
466 |
s->hub_port = atoi(h+1);
|
467 |
*h = '\0';
|
468 |
} else {
|
469 |
/* no dot in there -> it is the root hub */
|
470 |
snprintf(hub_name, sizeof(hub_name), "usb%d", |
471 |
s->match.bus_num); |
472 |
s->hub_port = atoi(s->match.port); |
473 |
} |
474 |
|
475 |
if (!usb_host_read_file(line, sizeof(line), "devnum", |
476 |
hub_name)) { |
477 |
return -1; |
478 |
} |
479 |
if (sscanf(line, "%d", &hub_addr) != 1) { |
480 |
return -1; |
481 |
} |
482 |
|
483 |
s->hub_fd = usb_host_open_device(s->match.bus_num, hub_addr); |
484 |
if (s->hub_fd < 0) { |
485 |
return -1; |
486 |
} |
487 |
|
488 |
ret = ioctl(s->hub_fd, USBDEVFS_CLAIM_PORT, &s->hub_port); |
489 |
if (ret < 0) { |
490 |
close(s->hub_fd); |
491 |
s->hub_fd = -1;
|
492 |
return -1; |
493 |
} |
494 |
|
495 |
trace_usb_host_claim_port(s->match.bus_num, hub_addr, s->hub_port); |
496 |
return 0; |
497 |
#else
|
498 |
return -1; |
499 |
#endif
|
500 |
} |
501 |
|
502 |
static void usb_host_release_port(USBHostDevice *s) |
503 |
{ |
504 |
if (s->hub_fd == -1) { |
505 |
return;
|
506 |
} |
507 |
#ifdef USBDEVFS_RELEASE_PORT
|
508 |
ioctl(s->hub_fd, USBDEVFS_RELEASE_PORT, &s->hub_port); |
509 |
#endif
|
510 |
close(s->hub_fd); |
511 |
s->hub_fd = -1;
|
512 |
} |
513 |
|
514 |
static int usb_host_disconnect_ifaces(USBHostDevice *dev, int nb_interfaces) |
515 |
{ |
516 |
/* earlier Linux 2.4 do not support that */
|
517 |
#ifdef USBDEVFS_DISCONNECT
|
518 |
struct usbdevfs_ioctl ctrl;
|
519 |
int ret, interface;
|
520 |
|
521 |
for (interface = 0; interface < nb_interfaces; interface++) { |
522 |
ctrl.ioctl_code = USBDEVFS_DISCONNECT; |
523 |
ctrl.ifno = interface; |
524 |
ctrl.data = 0;
|
525 |
ret = ioctl(dev->fd, USBDEVFS_IOCTL, &ctrl); |
526 |
if (ret < 0 && errno != ENODATA) { |
527 |
perror("USBDEVFS_DISCONNECT");
|
528 |
return -1; |
529 |
} |
530 |
} |
531 |
#endif
|
532 |
return 0; |
533 |
} |
534 |
|
535 |
static int usb_linux_get_num_interfaces(USBHostDevice *s) |
536 |
{ |
537 |
char device_name[64], line[1024]; |
538 |
int num_interfaces = 0; |
539 |
|
540 |
sprintf(device_name, "%d-%s", s->bus_num, s->port);
|
541 |
if (!usb_host_read_file(line, sizeof(line), "bNumInterfaces", |
542 |
device_name)) { |
543 |
return -1; |
544 |
} |
545 |
if (sscanf(line, "%d", &num_interfaces) != 1) { |
546 |
return -1; |
547 |
} |
548 |
return num_interfaces;
|
549 |
} |
550 |
|
551 |
static int usb_host_claim_interfaces(USBHostDevice *dev, int configuration) |
552 |
{ |
553 |
const char *op = NULL; |
554 |
int dev_descr_len, config_descr_len;
|
555 |
int interface, nb_interfaces;
|
556 |
int ret, i;
|
557 |
|
558 |
for (i = 0; i < USB_MAX_INTERFACES; i++) { |
559 |
dev->dev.altsetting[i] = 0;
|
560 |
} |
561 |
|
562 |
if (configuration == 0) { /* address state - ignore */ |
563 |
dev->dev.ninterfaces = 0;
|
564 |
dev->dev.configuration = 0;
|
565 |
return 1; |
566 |
} |
567 |
|
568 |
DPRINTF("husb: claiming interfaces. config %d\n", configuration);
|
569 |
|
570 |
i = 0;
|
571 |
dev_descr_len = dev->descr[0];
|
572 |
if (dev_descr_len > dev->descr_len) {
|
573 |
fprintf(stderr, "husb: update iface failed. descr too short\n");
|
574 |
return 0; |
575 |
} |
576 |
|
577 |
i += dev_descr_len; |
578 |
while (i < dev->descr_len) {
|
579 |
DPRINTF("husb: i is %d, descr_len is %d, dl %d, dt %d\n",
|
580 |
i, dev->descr_len, |
581 |
dev->descr[i], dev->descr[i+1]);
|
582 |
|
583 |
if (dev->descr[i+1] != USB_DT_CONFIG) { |
584 |
i += dev->descr[i]; |
585 |
continue;
|
586 |
} |
587 |
config_descr_len = dev->descr[i]; |
588 |
|
589 |
DPRINTF("husb: config #%d need %d\n", dev->descr[i + 5], configuration); |
590 |
|
591 |
if (configuration == dev->descr[i + 5]) { |
592 |
configuration = dev->descr[i + 5];
|
593 |
break;
|
594 |
} |
595 |
|
596 |
i += config_descr_len; |
597 |
} |
598 |
|
599 |
if (i >= dev->descr_len) {
|
600 |
fprintf(stderr, |
601 |
"husb: update iface failed. no matching configuration\n");
|
602 |
return 0; |
603 |
} |
604 |
nb_interfaces = dev->descr[i + 4];
|
605 |
|
606 |
if (usb_host_disconnect_ifaces(dev, nb_interfaces) < 0) { |
607 |
goto fail;
|
608 |
} |
609 |
|
610 |
/* XXX: only grab if all interfaces are free */
|
611 |
for (interface = 0; interface < nb_interfaces; interface++) { |
612 |
op = "USBDEVFS_CLAIMINTERFACE";
|
613 |
ret = ioctl(dev->fd, USBDEVFS_CLAIMINTERFACE, &interface); |
614 |
if (ret < 0) { |
615 |
goto fail;
|
616 |
} |
617 |
} |
618 |
|
619 |
trace_usb_host_claim_interfaces(dev->bus_num, dev->addr, |
620 |
nb_interfaces, configuration); |
621 |
|
622 |
dev->dev.ninterfaces = nb_interfaces; |
623 |
dev->dev.configuration = configuration; |
624 |
return 1; |
625 |
|
626 |
fail:
|
627 |
if (errno == ENODEV) {
|
628 |
do_disconnect(dev); |
629 |
} |
630 |
perror(op); |
631 |
return 0; |
632 |
} |
633 |
|
634 |
static int usb_host_release_interfaces(USBHostDevice *s) |
635 |
{ |
636 |
int ret, i;
|
637 |
|
638 |
trace_usb_host_release_interfaces(s->bus_num, s->addr); |
639 |
|
640 |
for (i = 0; i < s->dev.ninterfaces; i++) { |
641 |
ret = ioctl(s->fd, USBDEVFS_RELEASEINTERFACE, &i); |
642 |
if (ret < 0) { |
643 |
perror("USBDEVFS_RELEASEINTERFACE");
|
644 |
return 0; |
645 |
} |
646 |
} |
647 |
return 1; |
648 |
} |
649 |
|
650 |
static void usb_host_handle_reset(USBDevice *dev) |
651 |
{ |
652 |
USBHostDevice *s = DO_UPCAST(USBHostDevice, dev, dev); |
653 |
|
654 |
trace_usb_host_reset(s->bus_num, s->addr); |
655 |
|
656 |
usb_host_do_reset(s);; |
657 |
|
658 |
usb_host_claim_interfaces(s, 0);
|
659 |
usb_linux_update_endp_table(s); |
660 |
} |
661 |
|
662 |
static void usb_host_handle_destroy(USBDevice *dev) |
663 |
{ |
664 |
USBHostDevice *s = (USBHostDevice *)dev; |
665 |
|
666 |
usb_host_release_port(s); |
667 |
usb_host_close(s); |
668 |
QTAILQ_REMOVE(&hostdevs, s, next); |
669 |
qemu_remove_exit_notifier(&s->exit); |
670 |
} |
671 |
|
672 |
/* iso data is special, we need to keep enough urbs in flight to make sure
|
673 |
that the controller never runs out of them, otherwise the device will
|
674 |
likely suffer a buffer underrun / overrun. */
|
675 |
static AsyncURB *usb_host_alloc_iso(USBHostDevice *s, int pid, uint8_t ep) |
676 |
{ |
677 |
AsyncURB *aurb; |
678 |
int i, j, len = usb_ep_get_max_packet_size(&s->dev, pid, ep);
|
679 |
|
680 |
aurb = g_malloc0(s->iso_urb_count * sizeof(*aurb));
|
681 |
for (i = 0; i < s->iso_urb_count; i++) { |
682 |
aurb[i].urb.endpoint = ep; |
683 |
aurb[i].urb.buffer_length = ISO_FRAME_DESC_PER_URB * len; |
684 |
aurb[i].urb.buffer = g_malloc(aurb[i].urb.buffer_length); |
685 |
aurb[i].urb.type = USBDEVFS_URB_TYPE_ISO; |
686 |
aurb[i].urb.flags = USBDEVFS_URB_ISO_ASAP; |
687 |
aurb[i].urb.number_of_packets = ISO_FRAME_DESC_PER_URB; |
688 |
for (j = 0 ; j < ISO_FRAME_DESC_PER_URB; j++) |
689 |
aurb[i].urb.iso_frame_desc[j].length = len; |
690 |
if (pid == USB_TOKEN_IN) {
|
691 |
aurb[i].urb.endpoint |= 0x80;
|
692 |
/* Mark as fully consumed (idle) */
|
693 |
aurb[i].iso_frame_idx = ISO_FRAME_DESC_PER_URB; |
694 |
} |
695 |
} |
696 |
set_iso_urb(s, pid, ep, aurb); |
697 |
|
698 |
return aurb;
|
699 |
} |
700 |
|
701 |
static void usb_host_stop_n_free_iso(USBHostDevice *s, int pid, uint8_t ep) |
702 |
{ |
703 |
AsyncURB *aurb; |
704 |
int i, ret, killed = 0, free = 1; |
705 |
|
706 |
aurb = get_iso_urb(s, pid, ep); |
707 |
if (!aurb) {
|
708 |
return;
|
709 |
} |
710 |
|
711 |
for (i = 0; i < s->iso_urb_count; i++) { |
712 |
/* in flight? */
|
713 |
if (aurb[i].iso_frame_idx == -1) { |
714 |
ret = ioctl(s->fd, USBDEVFS_DISCARDURB, &aurb[i]); |
715 |
if (ret < 0) { |
716 |
perror("USBDEVFS_DISCARDURB");
|
717 |
free = 0;
|
718 |
continue;
|
719 |
} |
720 |
killed++; |
721 |
} |
722 |
} |
723 |
|
724 |
/* Make sure any urbs we've killed are reaped before we free them */
|
725 |
if (killed) {
|
726 |
async_complete(s); |
727 |
} |
728 |
|
729 |
for (i = 0; i < s->iso_urb_count; i++) { |
730 |
g_free(aurb[i].urb.buffer); |
731 |
} |
732 |
|
733 |
if (free)
|
734 |
g_free(aurb); |
735 |
else
|
736 |
printf("husb: leaking iso urbs because of discard failure\n");
|
737 |
set_iso_urb(s, pid, ep, NULL);
|
738 |
set_iso_urb_idx(s, pid, ep, 0);
|
739 |
clear_iso_started(s, pid, ep); |
740 |
} |
741 |
|
742 |
static void urb_status_to_usb_ret(int status, USBPacket *p) |
743 |
{ |
744 |
switch (status) {
|
745 |
case -EPIPE:
|
746 |
p->status = USB_RET_STALL; |
747 |
break;
|
748 |
case -EOVERFLOW:
|
749 |
p->status = USB_RET_BABBLE; |
750 |
break;
|
751 |
default:
|
752 |
p->status = USB_RET_IOERROR; |
753 |
} |
754 |
} |
755 |
|
756 |
static void usb_host_handle_iso_data(USBHostDevice *s, USBPacket *p, int in) |
757 |
{ |
758 |
AsyncURB *aurb; |
759 |
int i, j, max_packet_size, offset, len;
|
760 |
uint8_t *buf; |
761 |
|
762 |
max_packet_size = p->ep->max_packet_size; |
763 |
if (max_packet_size == 0) { |
764 |
p->status = USB_RET_NAK; |
765 |
return;
|
766 |
} |
767 |
|
768 |
aurb = get_iso_urb(s, p->pid, p->ep->nr); |
769 |
if (!aurb) {
|
770 |
aurb = usb_host_alloc_iso(s, p->pid, p->ep->nr); |
771 |
} |
772 |
|
773 |
i = get_iso_urb_idx(s, p->pid, p->ep->nr); |
774 |
j = aurb[i].iso_frame_idx; |
775 |
if (j >= 0 && j < ISO_FRAME_DESC_PER_URB) { |
776 |
if (in) {
|
777 |
/* Check urb status */
|
778 |
if (aurb[i].urb.status) {
|
779 |
urb_status_to_usb_ret(aurb[i].urb.status, p); |
780 |
/* Move to the next urb */
|
781 |
aurb[i].iso_frame_idx = ISO_FRAME_DESC_PER_URB - 1;
|
782 |
/* Check frame status */
|
783 |
} else if (aurb[i].urb.iso_frame_desc[j].status) { |
784 |
urb_status_to_usb_ret(aurb[i].urb.iso_frame_desc[j].status, p); |
785 |
/* Check the frame fits */
|
786 |
} else if (aurb[i].urb.iso_frame_desc[j].actual_length |
787 |
> p->iov.size) { |
788 |
printf("husb: received iso data is larger then packet\n");
|
789 |
p->status = USB_RET_BABBLE; |
790 |
/* All good copy data over */
|
791 |
} else {
|
792 |
len = aurb[i].urb.iso_frame_desc[j].actual_length; |
793 |
buf = aurb[i].urb.buffer + |
794 |
j * aurb[i].urb.iso_frame_desc[0].length;
|
795 |
usb_packet_copy(p, buf, len); |
796 |
} |
797 |
} else {
|
798 |
len = p->iov.size; |
799 |
offset = (j == 0) ? 0 : get_iso_buffer_used(s, p->pid, p->ep->nr); |
800 |
|
801 |
/* Check the frame fits */
|
802 |
if (len > max_packet_size) {
|
803 |
printf("husb: send iso data is larger then max packet size\n");
|
804 |
p->status = USB_RET_NAK; |
805 |
return;
|
806 |
} |
807 |
|
808 |
/* All good copy data over */
|
809 |
usb_packet_copy(p, aurb[i].urb.buffer + offset, len); |
810 |
aurb[i].urb.iso_frame_desc[j].length = len; |
811 |
offset += len; |
812 |
set_iso_buffer_used(s, p->pid, p->ep->nr, offset); |
813 |
|
814 |
/* Start the stream once we have buffered enough data */
|
815 |
if (!is_iso_started(s, p->pid, p->ep->nr) && i == 1 && j == 8) { |
816 |
set_iso_started(s, p->pid, p->ep->nr); |
817 |
} |
818 |
} |
819 |
aurb[i].iso_frame_idx++; |
820 |
if (aurb[i].iso_frame_idx == ISO_FRAME_DESC_PER_URB) {
|
821 |
i = (i + 1) % s->iso_urb_count;
|
822 |
set_iso_urb_idx(s, p->pid, p->ep->nr, i); |
823 |
} |
824 |
} else {
|
825 |
if (in) {
|
826 |
set_iso_started(s, p->pid, p->ep->nr); |
827 |
} else {
|
828 |
DPRINTF("hubs: iso out error no free buffer, dropping packet\n");
|
829 |
} |
830 |
} |
831 |
|
832 |
if (is_iso_started(s, p->pid, p->ep->nr)) {
|
833 |
/* (Re)-submit all fully consumed / filled urbs */
|
834 |
for (i = 0; i < s->iso_urb_count; i++) { |
835 |
if (aurb[i].iso_frame_idx == ISO_FRAME_DESC_PER_URB) {
|
836 |
if (ioctl(s->fd, USBDEVFS_SUBMITURB, &aurb[i]) < 0) { |
837 |
perror("USBDEVFS_SUBMITURB");
|
838 |
if (!in || p->status == USB_RET_SUCCESS) {
|
839 |
switch(errno) {
|
840 |
case ETIMEDOUT:
|
841 |
p->status = USB_RET_NAK; |
842 |
break;
|
843 |
case EPIPE:
|
844 |
default:
|
845 |
p->status = USB_RET_STALL; |
846 |
} |
847 |
} |
848 |
break;
|
849 |
} |
850 |
aurb[i].iso_frame_idx = -1;
|
851 |
change_iso_inflight(s, p->pid, p->ep->nr, 1);
|
852 |
} |
853 |
} |
854 |
} |
855 |
} |
856 |
|
857 |
static void usb_host_handle_data(USBDevice *dev, USBPacket *p) |
858 |
{ |
859 |
USBHostDevice *s = DO_UPCAST(USBHostDevice, dev, dev); |
860 |
struct usbdevfs_urb *urb;
|
861 |
AsyncURB *aurb; |
862 |
int ret, rem, prem, v;
|
863 |
uint8_t *pbuf; |
864 |
uint8_t ep; |
865 |
|
866 |
trace_usb_host_req_data(s->bus_num, s->addr, p, |
867 |
p->pid == USB_TOKEN_IN, |
868 |
p->ep->nr, p->iov.size); |
869 |
|
870 |
if (!is_valid(s, p->pid, p->ep->nr)) {
|
871 |
p->status = USB_RET_NAK; |
872 |
trace_usb_host_req_complete(s->bus_num, s->addr, p, |
873 |
p->status, p->actual_length); |
874 |
return;
|
875 |
} |
876 |
|
877 |
if (p->pid == USB_TOKEN_IN) {
|
878 |
ep = p->ep->nr | 0x80;
|
879 |
} else {
|
880 |
ep = p->ep->nr; |
881 |
} |
882 |
|
883 |
if (is_halted(s, p->pid, p->ep->nr)) {
|
884 |
unsigned int arg = ep; |
885 |
ret = ioctl(s->fd, USBDEVFS_CLEAR_HALT, &arg); |
886 |
if (ret < 0) { |
887 |
perror("USBDEVFS_CLEAR_HALT");
|
888 |
p->status = USB_RET_NAK; |
889 |
trace_usb_host_req_complete(s->bus_num, s->addr, p, |
890 |
p->status, p->actual_length); |
891 |
return;
|
892 |
} |
893 |
clear_halt(s, p->pid, p->ep->nr); |
894 |
} |
895 |
|
896 |
if (is_isoc(s, p->pid, p->ep->nr)) {
|
897 |
usb_host_handle_iso_data(s, p, p->pid == USB_TOKEN_IN); |
898 |
return;
|
899 |
} |
900 |
|
901 |
v = 0;
|
902 |
prem = 0;
|
903 |
pbuf = NULL;
|
904 |
rem = p->iov.size; |
905 |
do {
|
906 |
if (prem == 0 && rem > 0) { |
907 |
assert(v < p->iov.niov); |
908 |
prem = p->iov.iov[v].iov_len; |
909 |
pbuf = p->iov.iov[v].iov_base; |
910 |
assert(prem <= rem); |
911 |
v++; |
912 |
} |
913 |
aurb = async_alloc(s); |
914 |
aurb->packet = p; |
915 |
|
916 |
urb = &aurb->urb; |
917 |
urb->endpoint = ep; |
918 |
urb->type = usb_host_usbfs_type(s, p); |
919 |
urb->usercontext = s; |
920 |
urb->buffer = pbuf; |
921 |
urb->buffer_length = prem; |
922 |
|
923 |
if (urb->buffer_length > MAX_USBFS_BUFFER_SIZE) {
|
924 |
urb->buffer_length = MAX_USBFS_BUFFER_SIZE; |
925 |
} |
926 |
pbuf += urb->buffer_length; |
927 |
prem -= urb->buffer_length; |
928 |
rem -= urb->buffer_length; |
929 |
if (rem) {
|
930 |
aurb->more = 1;
|
931 |
} |
932 |
|
933 |
trace_usb_host_urb_submit(s->bus_num, s->addr, aurb, |
934 |
urb->buffer_length, aurb->more); |
935 |
ret = ioctl(s->fd, USBDEVFS_SUBMITURB, urb); |
936 |
|
937 |
DPRINTF("husb: data submit: ep 0x%x, len %u, more %d, packet %p, aurb %p\n",
|
938 |
urb->endpoint, urb->buffer_length, aurb->more, p, aurb); |
939 |
|
940 |
if (ret < 0) { |
941 |
perror("USBDEVFS_SUBMITURB");
|
942 |
async_free(aurb); |
943 |
|
944 |
switch(errno) {
|
945 |
case ETIMEDOUT:
|
946 |
p->status = USB_RET_NAK; |
947 |
trace_usb_host_req_complete(s->bus_num, s->addr, p, |
948 |
p->status, p->actual_length); |
949 |
break;
|
950 |
case EPIPE:
|
951 |
default:
|
952 |
p->status = USB_RET_STALL; |
953 |
trace_usb_host_req_complete(s->bus_num, s->addr, p, |
954 |
p->status, p->actual_length); |
955 |
} |
956 |
return;
|
957 |
} |
958 |
} while (rem > 0); |
959 |
|
960 |
p->status = USB_RET_ASYNC; |
961 |
} |
962 |
|
963 |
static int ctrl_error(void) |
964 |
{ |
965 |
if (errno == ETIMEDOUT) {
|
966 |
return USB_RET_NAK;
|
967 |
} else {
|
968 |
return USB_RET_STALL;
|
969 |
} |
970 |
} |
971 |
|
972 |
static void usb_host_set_address(USBHostDevice *s, int addr) |
973 |
{ |
974 |
trace_usb_host_set_address(s->bus_num, s->addr, addr); |
975 |
s->dev.addr = addr; |
976 |
} |
977 |
|
978 |
static void usb_host_set_config(USBHostDevice *s, int config, USBPacket *p) |
979 |
{ |
980 |
int ret, first = 1; |
981 |
|
982 |
trace_usb_host_set_config(s->bus_num, s->addr, config); |
983 |
|
984 |
usb_host_release_interfaces(s); |
985 |
|
986 |
again:
|
987 |
ret = ioctl(s->fd, USBDEVFS_SETCONFIGURATION, &config); |
988 |
|
989 |
DPRINTF("husb: ctrl set config %d ret %d errno %d\n", config, ret, errno);
|
990 |
|
991 |
if (ret < 0 && errno == EBUSY && first) { |
992 |
/* happens if usb device is in use by host drivers */
|
993 |
int count = usb_linux_get_num_interfaces(s);
|
994 |
if (count > 0) { |
995 |
DPRINTF("husb: busy -> disconnecting %d interfaces\n", count);
|
996 |
usb_host_disconnect_ifaces(s, count); |
997 |
first = 0;
|
998 |
goto again;
|
999 |
} |
1000 |
} |
1001 |
|
1002 |
if (ret < 0) { |
1003 |
p->status = ctrl_error(); |
1004 |
return;
|
1005 |
} |
1006 |
usb_host_claim_interfaces(s, config); |
1007 |
usb_linux_update_endp_table(s); |
1008 |
} |
1009 |
|
1010 |
static void usb_host_set_interface(USBHostDevice *s, int iface, int alt, |
1011 |
USBPacket *p) |
1012 |
{ |
1013 |
struct usbdevfs_setinterface si;
|
1014 |
int i, ret;
|
1015 |
|
1016 |
trace_usb_host_set_interface(s->bus_num, s->addr, iface, alt); |
1017 |
|
1018 |
for (i = 1; i <= USB_MAX_ENDPOINTS; i++) { |
1019 |
if (is_isoc(s, USB_TOKEN_IN, i)) {
|
1020 |
usb_host_stop_n_free_iso(s, USB_TOKEN_IN, i); |
1021 |
} |
1022 |
if (is_isoc(s, USB_TOKEN_OUT, i)) {
|
1023 |
usb_host_stop_n_free_iso(s, USB_TOKEN_OUT, i); |
1024 |
} |
1025 |
} |
1026 |
|
1027 |
if (iface >= USB_MAX_INTERFACES) {
|
1028 |
p->status = USB_RET_STALL; |
1029 |
return;
|
1030 |
} |
1031 |
|
1032 |
si.interface = iface; |
1033 |
si.altsetting = alt; |
1034 |
ret = ioctl(s->fd, USBDEVFS_SETINTERFACE, &si); |
1035 |
|
1036 |
DPRINTF("husb: ctrl set iface %d altset %d ret %d errno %d\n",
|
1037 |
iface, alt, ret, errno); |
1038 |
|
1039 |
if (ret < 0) { |
1040 |
p->status = ctrl_error(); |
1041 |
return;
|
1042 |
} |
1043 |
|
1044 |
s->dev.altsetting[iface] = alt; |
1045 |
usb_linux_update_endp_table(s); |
1046 |
} |
1047 |
|
1048 |
static void usb_host_handle_control(USBDevice *dev, USBPacket *p, |
1049 |
int request, int value, int index, int length, uint8_t *data) |
1050 |
{ |
1051 |
USBHostDevice *s = DO_UPCAST(USBHostDevice, dev, dev); |
1052 |
struct usbdevfs_urb *urb;
|
1053 |
AsyncURB *aurb; |
1054 |
int ret;
|
1055 |
|
1056 |
/*
|
1057 |
* Process certain standard device requests.
|
1058 |
* These are infrequent and are processed synchronously.
|
1059 |
*/
|
1060 |
|
1061 |
/* Note request is (bRequestType << 8) | bRequest */
|
1062 |
trace_usb_host_req_control(s->bus_num, s->addr, p, request, value, index); |
1063 |
|
1064 |
switch (request) {
|
1065 |
case DeviceOutRequest | USB_REQ_SET_ADDRESS:
|
1066 |
usb_host_set_address(s, value); |
1067 |
trace_usb_host_req_emulated(s->bus_num, s->addr, p, p->status); |
1068 |
return;
|
1069 |
|
1070 |
case DeviceOutRequest | USB_REQ_SET_CONFIGURATION:
|
1071 |
usb_host_set_config(s, value & 0xff, p);
|
1072 |
trace_usb_host_req_emulated(s->bus_num, s->addr, p, p->status); |
1073 |
return;
|
1074 |
|
1075 |
case InterfaceOutRequest | USB_REQ_SET_INTERFACE:
|
1076 |
usb_host_set_interface(s, index, value, p); |
1077 |
trace_usb_host_req_emulated(s->bus_num, s->addr, p, p->status); |
1078 |
return;
|
1079 |
|
1080 |
case EndpointOutRequest | USB_REQ_CLEAR_FEATURE:
|
1081 |
if (value == 0) { /* clear halt */ |
1082 |
int pid = (index & USB_DIR_IN) ? USB_TOKEN_IN : USB_TOKEN_OUT;
|
1083 |
ioctl(s->fd, USBDEVFS_CLEAR_HALT, &index); |
1084 |
clear_halt(s, pid, index & 0x0f);
|
1085 |
trace_usb_host_req_emulated(s->bus_num, s->addr, p, 0);
|
1086 |
return;
|
1087 |
} |
1088 |
} |
1089 |
|
1090 |
/* The rest are asynchronous */
|
1091 |
if (length > sizeof(dev->data_buf)) { |
1092 |
fprintf(stderr, "husb: ctrl buffer too small (%d > %zu)\n",
|
1093 |
length, sizeof(dev->data_buf));
|
1094 |
p->status = USB_RET_STALL; |
1095 |
return;
|
1096 |
} |
1097 |
|
1098 |
aurb = async_alloc(s); |
1099 |
aurb->packet = p; |
1100 |
|
1101 |
/*
|
1102 |
* Setup ctrl transfer.
|
1103 |
*
|
1104 |
* s->ctrl is laid out such that data buffer immediately follows
|
1105 |
* 'req' struct which is exactly what usbdevfs expects.
|
1106 |
*/
|
1107 |
urb = &aurb->urb; |
1108 |
|
1109 |
urb->type = USBDEVFS_URB_TYPE_CONTROL; |
1110 |
urb->endpoint = p->ep->nr; |
1111 |
|
1112 |
urb->buffer = &dev->setup_buf; |
1113 |
urb->buffer_length = length + 8;
|
1114 |
|
1115 |
urb->usercontext = s; |
1116 |
|
1117 |
trace_usb_host_urb_submit(s->bus_num, s->addr, aurb, |
1118 |
urb->buffer_length, aurb->more); |
1119 |
ret = ioctl(s->fd, USBDEVFS_SUBMITURB, urb); |
1120 |
|
1121 |
DPRINTF("husb: submit ctrl. len %u aurb %p\n", urb->buffer_length, aurb);
|
1122 |
|
1123 |
if (ret < 0) { |
1124 |
DPRINTF("husb: submit failed. errno %d\n", errno);
|
1125 |
async_free(aurb); |
1126 |
|
1127 |
switch(errno) {
|
1128 |
case ETIMEDOUT:
|
1129 |
p->status = USB_RET_NAK; |
1130 |
break;
|
1131 |
case EPIPE:
|
1132 |
default:
|
1133 |
p->status = USB_RET_STALL; |
1134 |
break;
|
1135 |
} |
1136 |
return;
|
1137 |
} |
1138 |
|
1139 |
p->status = USB_RET_ASYNC; |
1140 |
} |
1141 |
|
1142 |
static void usb_linux_update_endp_table(USBHostDevice *s) |
1143 |
{ |
1144 |
static const char *tname[] = { |
1145 |
[USB_ENDPOINT_XFER_CONTROL] = "control",
|
1146 |
[USB_ENDPOINT_XFER_ISOC] = "isoc",
|
1147 |
[USB_ENDPOINT_XFER_BULK] = "bulk",
|
1148 |
[USB_ENDPOINT_XFER_INT] = "int",
|
1149 |
}; |
1150 |
uint8_t devep, type; |
1151 |
uint16_t mps, v, p; |
1152 |
int ep, pid;
|
1153 |
unsigned int i, configuration = -1, interface = -1, altsetting = -1; |
1154 |
struct endp_data *epd;
|
1155 |
USBDescriptor *d; |
1156 |
bool active = false; |
1157 |
|
1158 |
usb_ep_reset(&s->dev); |
1159 |
|
1160 |
for (i = 0;; i += d->bLength) { |
1161 |
if (i+2 >= s->descr_len) { |
1162 |
break;
|
1163 |
} |
1164 |
d = (void *)(s->descr + i);
|
1165 |
if (d->bLength < 2) { |
1166 |
trace_usb_host_parse_error(s->bus_num, s->addr, |
1167 |
"descriptor too short");
|
1168 |
return;
|
1169 |
} |
1170 |
if (i + d->bLength > s->descr_len) {
|
1171 |
trace_usb_host_parse_error(s->bus_num, s->addr, |
1172 |
"descriptor too long");
|
1173 |
return;
|
1174 |
} |
1175 |
switch (d->bDescriptorType) {
|
1176 |
case 0: |
1177 |
trace_usb_host_parse_error(s->bus_num, s->addr, |
1178 |
"invalid descriptor type");
|
1179 |
return;
|
1180 |
case USB_DT_DEVICE:
|
1181 |
if (d->bLength < 0x12) { |
1182 |
trace_usb_host_parse_error(s->bus_num, s->addr, |
1183 |
"device descriptor too short");
|
1184 |
return;
|
1185 |
} |
1186 |
v = (d->u.device.idVendor_hi << 8) | d->u.device.idVendor_lo;
|
1187 |
p = (d->u.device.idProduct_hi << 8) | d->u.device.idProduct_lo;
|
1188 |
trace_usb_host_parse_device(s->bus_num, s->addr, v, p); |
1189 |
break;
|
1190 |
case USB_DT_CONFIG:
|
1191 |
if (d->bLength < 0x09) { |
1192 |
trace_usb_host_parse_error(s->bus_num, s->addr, |
1193 |
"config descriptor too short");
|
1194 |
return;
|
1195 |
} |
1196 |
configuration = d->u.config.bConfigurationValue; |
1197 |
active = (configuration == s->dev.configuration); |
1198 |
trace_usb_host_parse_config(s->bus_num, s->addr, |
1199 |
configuration, active); |
1200 |
break;
|
1201 |
case USB_DT_INTERFACE:
|
1202 |
if (d->bLength < 0x09) { |
1203 |
trace_usb_host_parse_error(s->bus_num, s->addr, |
1204 |
"interface descriptor too short");
|
1205 |
return;
|
1206 |
} |
1207 |
interface = d->u.interface.bInterfaceNumber; |
1208 |
altsetting = d->u.interface.bAlternateSetting; |
1209 |
active = (configuration == s->dev.configuration) && |
1210 |
(altsetting == s->dev.altsetting[interface]); |
1211 |
trace_usb_host_parse_interface(s->bus_num, s->addr, |
1212 |
interface, altsetting, active); |
1213 |
break;
|
1214 |
case USB_DT_ENDPOINT:
|
1215 |
if (d->bLength < 0x07) { |
1216 |
trace_usb_host_parse_error(s->bus_num, s->addr, |
1217 |
"endpoint descriptor too short");
|
1218 |
return;
|
1219 |
} |
1220 |
devep = d->u.endpoint.bEndpointAddress; |
1221 |
pid = (devep & USB_DIR_IN) ? USB_TOKEN_IN : USB_TOKEN_OUT; |
1222 |
ep = devep & 0xf;
|
1223 |
if (ep == 0) { |
1224 |
trace_usb_host_parse_error(s->bus_num, s->addr, |
1225 |
"invalid endpoint address");
|
1226 |
return;
|
1227 |
} |
1228 |
|
1229 |
type = d->u.endpoint.bmAttributes & 0x3;
|
1230 |
mps = d->u.endpoint.wMaxPacketSize_lo | |
1231 |
(d->u.endpoint.wMaxPacketSize_hi << 8);
|
1232 |
trace_usb_host_parse_endpoint(s->bus_num, s->addr, ep, |
1233 |
(devep & USB_DIR_IN) ? "in" : "out", |
1234 |
tname[type], active); |
1235 |
|
1236 |
if (active) {
|
1237 |
usb_ep_set_max_packet_size(&s->dev, pid, ep, mps); |
1238 |
assert(usb_ep_get_type(&s->dev, pid, ep) == |
1239 |
USB_ENDPOINT_XFER_INVALID); |
1240 |
usb_ep_set_type(&s->dev, pid, ep, type); |
1241 |
usb_ep_set_ifnum(&s->dev, pid, ep, interface); |
1242 |
if ((s->options & (1 << USB_HOST_OPT_PIPELINE)) && |
1243 |
(type == USB_ENDPOINT_XFER_BULK) && |
1244 |
(pid == USB_TOKEN_OUT)) { |
1245 |
usb_ep_set_pipeline(&s->dev, pid, ep, true);
|
1246 |
} |
1247 |
|
1248 |
epd = get_endp(s, pid, ep); |
1249 |
epd->halted = 0;
|
1250 |
} |
1251 |
|
1252 |
break;
|
1253 |
default:
|
1254 |
trace_usb_host_parse_unknown(s->bus_num, s->addr, |
1255 |
d->bLength, d->bDescriptorType); |
1256 |
break;
|
1257 |
} |
1258 |
} |
1259 |
} |
1260 |
|
1261 |
/*
|
1262 |
* Check if we can safely redirect a usb2 device to a usb1 virtual controller,
|
1263 |
* this function assumes this is safe, if:
|
1264 |
* 1) There are no isoc endpoints
|
1265 |
* 2) There are no interrupt endpoints with a max_packet_size > 64
|
1266 |
* Note bulk endpoints with a max_packet_size > 64 in theory also are not
|
1267 |
* usb1 compatible, but in practice this seems to work fine.
|
1268 |
*/
|
1269 |
static int usb_linux_full_speed_compat(USBHostDevice *dev) |
1270 |
{ |
1271 |
int i, packet_size;
|
1272 |
|
1273 |
/*
|
1274 |
* usb_linux_update_endp_table only registers info about ep in the current
|
1275 |
* interface altsettings, so we need to parse the descriptors again.
|
1276 |
*/
|
1277 |
for (i = 0; (i + 5) < dev->descr_len; i += dev->descr[i]) { |
1278 |
if (dev->descr[i + 1] == USB_DT_ENDPOINT) { |
1279 |
switch (dev->descr[i + 3] & 0x3) { |
1280 |
case 0x00: /* CONTROL */ |
1281 |
break;
|
1282 |
case 0x01: /* ISO */ |
1283 |
return 0; |
1284 |
case 0x02: /* BULK */ |
1285 |
break;
|
1286 |
case 0x03: /* INTERRUPT */ |
1287 |
packet_size = dev->descr[i + 4] + (dev->descr[i + 5] << 8); |
1288 |
if (packet_size > 64) |
1289 |
return 0; |
1290 |
break;
|
1291 |
} |
1292 |
} |
1293 |
} |
1294 |
return 1; |
1295 |
} |
1296 |
|
1297 |
static int usb_host_open(USBHostDevice *dev, int bus_num, |
1298 |
int addr, const char *port, |
1299 |
const char *prod_name, int speed) |
1300 |
{ |
1301 |
int fd = -1, ret; |
1302 |
|
1303 |
trace_usb_host_open_started(bus_num, addr); |
1304 |
|
1305 |
if (dev->fd != -1) { |
1306 |
goto fail;
|
1307 |
} |
1308 |
|
1309 |
fd = usb_host_open_device(bus_num, addr); |
1310 |
if (fd < 0) { |
1311 |
goto fail;
|
1312 |
} |
1313 |
DPRINTF("husb: opened %s\n", buf);
|
1314 |
|
1315 |
dev->bus_num = bus_num; |
1316 |
dev->addr = addr; |
1317 |
strcpy(dev->port, port); |
1318 |
dev->fd = fd; |
1319 |
|
1320 |
/* read the device description */
|
1321 |
dev->descr_len = read(fd, dev->descr, sizeof(dev->descr));
|
1322 |
if (dev->descr_len <= 0) { |
1323 |
perror("husb: reading device data failed");
|
1324 |
goto fail;
|
1325 |
} |
1326 |
|
1327 |
#ifdef DEBUG
|
1328 |
{ |
1329 |
int x;
|
1330 |
printf("=== begin dumping device descriptor data ===\n");
|
1331 |
for (x = 0; x < dev->descr_len; x++) { |
1332 |
printf("%02x ", dev->descr[x]);
|
1333 |
} |
1334 |
printf("\n=== end dumping device descriptor data ===\n");
|
1335 |
} |
1336 |
#endif
|
1337 |
|
1338 |
|
1339 |
/* start unconfigured -- we'll wait for the guest to set a configuration */
|
1340 |
if (!usb_host_claim_interfaces(dev, 0)) { |
1341 |
goto fail;
|
1342 |
} |
1343 |
|
1344 |
usb_ep_init(&dev->dev); |
1345 |
usb_linux_update_endp_table(dev); |
1346 |
|
1347 |
if (speed == -1) { |
1348 |
struct usbdevfs_connectinfo ci;
|
1349 |
|
1350 |
ret = ioctl(fd, USBDEVFS_CONNECTINFO, &ci); |
1351 |
if (ret < 0) { |
1352 |
perror("usb_host_device_open: USBDEVFS_CONNECTINFO");
|
1353 |
goto fail;
|
1354 |
} |
1355 |
|
1356 |
if (ci.slow) {
|
1357 |
speed = USB_SPEED_LOW; |
1358 |
} else {
|
1359 |
speed = USB_SPEED_HIGH; |
1360 |
} |
1361 |
} |
1362 |
dev->dev.speed = speed; |
1363 |
dev->dev.speedmask = (1 << speed);
|
1364 |
if (dev->dev.speed == USB_SPEED_HIGH && usb_linux_full_speed_compat(dev)) {
|
1365 |
dev->dev.speedmask |= USB_SPEED_MASK_FULL; |
1366 |
} |
1367 |
|
1368 |
trace_usb_host_open_success(bus_num, addr); |
1369 |
|
1370 |
if (!prod_name || prod_name[0] == '\0') { |
1371 |
snprintf(dev->dev.product_desc, sizeof(dev->dev.product_desc),
|
1372 |
"host:%d.%d", bus_num, addr);
|
1373 |
} else {
|
1374 |
pstrcpy(dev->dev.product_desc, sizeof(dev->dev.product_desc),
|
1375 |
prod_name); |
1376 |
} |
1377 |
|
1378 |
ret = usb_device_attach(&dev->dev); |
1379 |
if (ret) {
|
1380 |
goto fail;
|
1381 |
} |
1382 |
|
1383 |
/* USB devio uses 'write' flag to check for async completions */
|
1384 |
qemu_set_fd_handler(dev->fd, NULL, async_complete, dev);
|
1385 |
|
1386 |
return 0; |
1387 |
|
1388 |
fail:
|
1389 |
trace_usb_host_open_failure(bus_num, addr); |
1390 |
if (dev->fd != -1) { |
1391 |
close(dev->fd); |
1392 |
dev->fd = -1;
|
1393 |
} |
1394 |
return -1; |
1395 |
} |
1396 |
|
1397 |
static int usb_host_close(USBHostDevice *dev) |
1398 |
{ |
1399 |
int i;
|
1400 |
|
1401 |
if (dev->fd == -1) { |
1402 |
return -1; |
1403 |
} |
1404 |
|
1405 |
trace_usb_host_close(dev->bus_num, dev->addr); |
1406 |
|
1407 |
qemu_set_fd_handler(dev->fd, NULL, NULL, NULL); |
1408 |
dev->closing = 1;
|
1409 |
for (i = 1; i <= USB_MAX_ENDPOINTS; i++) { |
1410 |
if (is_isoc(dev, USB_TOKEN_IN, i)) {
|
1411 |
usb_host_stop_n_free_iso(dev, USB_TOKEN_IN, i); |
1412 |
} |
1413 |
if (is_isoc(dev, USB_TOKEN_OUT, i)) {
|
1414 |
usb_host_stop_n_free_iso(dev, USB_TOKEN_OUT, i); |
1415 |
} |
1416 |
} |
1417 |
async_complete(dev); |
1418 |
dev->closing = 0;
|
1419 |
if (dev->dev.attached) {
|
1420 |
usb_device_detach(&dev->dev); |
1421 |
} |
1422 |
usb_host_do_reset(dev); |
1423 |
close(dev->fd); |
1424 |
dev->fd = -1;
|
1425 |
return 0; |
1426 |
} |
1427 |
|
1428 |
static void usb_host_exit_notifier(struct Notifier *n, void *data) |
1429 |
{ |
1430 |
USBHostDevice *s = container_of(n, USBHostDevice, exit); |
1431 |
|
1432 |
usb_host_release_port(s); |
1433 |
if (s->fd != -1) { |
1434 |
usb_host_do_reset(s);; |
1435 |
} |
1436 |
} |
1437 |
|
1438 |
/*
|
1439 |
* This is *NOT* about restoring state. We have absolutely no idea
|
1440 |
* what state the host device is in at the moment and whenever it is
|
1441 |
* still present in the first place. Attemping to contine where we
|
1442 |
* left off is impossible.
|
1443 |
*
|
1444 |
* What we are going to to to here is emulate a surprise removal of
|
1445 |
* the usb device passed through, then kick host scan so the device
|
1446 |
* will get re-attached (and re-initialized by the guest) in case it
|
1447 |
* is still present.
|
1448 |
*
|
1449 |
* As the device removal will change the state of other devices (usb
|
1450 |
* host controller, most likely interrupt controller too) we have to
|
1451 |
* wait with it until *all* vmstate is loaded. Thus post_load just
|
1452 |
* kicks a bottom half which then does the actual work.
|
1453 |
*/
|
1454 |
static void usb_host_post_load_bh(void *opaque) |
1455 |
{ |
1456 |
USBHostDevice *dev = opaque; |
1457 |
|
1458 |
if (dev->fd != -1) { |
1459 |
usb_host_close(dev); |
1460 |
} |
1461 |
if (dev->dev.attached) {
|
1462 |
usb_device_detach(&dev->dev); |
1463 |
} |
1464 |
usb_host_auto_check(NULL);
|
1465 |
} |
1466 |
|
1467 |
static int usb_host_post_load(void *opaque, int version_id) |
1468 |
{ |
1469 |
USBHostDevice *dev = opaque; |
1470 |
|
1471 |
qemu_bh_schedule(dev->bh); |
1472 |
return 0; |
1473 |
} |
1474 |
|
1475 |
static int usb_host_initfn(USBDevice *dev) |
1476 |
{ |
1477 |
USBHostDevice *s = DO_UPCAST(USBHostDevice, dev, dev); |
1478 |
|
1479 |
dev->flags |= (1 << USB_DEV_FLAG_IS_HOST);
|
1480 |
dev->auto_attach = 0;
|
1481 |
s->fd = -1;
|
1482 |
s->hub_fd = -1;
|
1483 |
|
1484 |
QTAILQ_INSERT_TAIL(&hostdevs, s, next); |
1485 |
s->exit.notify = usb_host_exit_notifier; |
1486 |
qemu_add_exit_notifier(&s->exit); |
1487 |
s->bh = qemu_bh_new(usb_host_post_load_bh, s); |
1488 |
usb_host_auto_check(NULL);
|
1489 |
|
1490 |
if (s->match.bus_num != 0 && s->match.port != NULL) { |
1491 |
usb_host_claim_port(s); |
1492 |
} |
1493 |
add_boot_device_path(s->bootindex, &dev->qdev, NULL);
|
1494 |
return 0; |
1495 |
} |
1496 |
|
1497 |
static const VMStateDescription vmstate_usb_host = { |
1498 |
.name = "usb-host",
|
1499 |
.version_id = 1,
|
1500 |
.minimum_version_id = 1,
|
1501 |
.post_load = usb_host_post_load, |
1502 |
.fields = (VMStateField[]) { |
1503 |
VMSTATE_USB_DEVICE(dev, USBHostDevice), |
1504 |
VMSTATE_END_OF_LIST() |
1505 |
} |
1506 |
}; |
1507 |
|
1508 |
static Property usb_host_dev_properties[] = {
|
1509 |
DEFINE_PROP_UINT32("hostbus", USBHostDevice, match.bus_num, 0), |
1510 |
DEFINE_PROP_UINT32("hostaddr", USBHostDevice, match.addr, 0), |
1511 |
DEFINE_PROP_STRING("hostport", USBHostDevice, match.port),
|
1512 |
DEFINE_PROP_HEX32("vendorid", USBHostDevice, match.vendor_id, 0), |
1513 |
DEFINE_PROP_HEX32("productid", USBHostDevice, match.product_id, 0), |
1514 |
DEFINE_PROP_UINT32("isobufs", USBHostDevice, iso_urb_count, 4), |
1515 |
DEFINE_PROP_INT32("bootindex", USBHostDevice, bootindex, -1), |
1516 |
DEFINE_PROP_BIT("pipeline", USBHostDevice, options,
|
1517 |
USB_HOST_OPT_PIPELINE, true),
|
1518 |
DEFINE_PROP_END_OF_LIST(), |
1519 |
}; |
1520 |
|
1521 |
static void usb_host_class_initfn(ObjectClass *klass, void *data) |
1522 |
{ |
1523 |
DeviceClass *dc = DEVICE_CLASS(klass); |
1524 |
USBDeviceClass *uc = USB_DEVICE_CLASS(klass); |
1525 |
|
1526 |
uc->init = usb_host_initfn; |
1527 |
uc->product_desc = "USB Host Device";
|
1528 |
uc->cancel_packet = usb_host_async_cancel; |
1529 |
uc->handle_data = usb_host_handle_data; |
1530 |
uc->handle_control = usb_host_handle_control; |
1531 |
uc->handle_reset = usb_host_handle_reset; |
1532 |
uc->handle_destroy = usb_host_handle_destroy; |
1533 |
dc->vmsd = &vmstate_usb_host; |
1534 |
dc->props = usb_host_dev_properties; |
1535 |
} |
1536 |
|
1537 |
static TypeInfo usb_host_dev_info = {
|
1538 |
.name = "usb-host",
|
1539 |
.parent = TYPE_USB_DEVICE, |
1540 |
.instance_size = sizeof(USBHostDevice),
|
1541 |
.class_init = usb_host_class_initfn, |
1542 |
}; |
1543 |
|
1544 |
static void usb_host_register_types(void) |
1545 |
{ |
1546 |
type_register_static(&usb_host_dev_info); |
1547 |
usb_legacy_register("usb-host", "host", usb_host_device_open); |
1548 |
} |
1549 |
|
1550 |
type_init(usb_host_register_types) |
1551 |
|
1552 |
USBDevice *usb_host_device_open(USBBus *bus, const char *devname) |
1553 |
{ |
1554 |
struct USBAutoFilter filter;
|
1555 |
USBDevice *dev; |
1556 |
char *p;
|
1557 |
|
1558 |
dev = usb_create(bus, "usb-host");
|
1559 |
|
1560 |
if (strstr(devname, "auto:")) { |
1561 |
if (parse_filter(devname, &filter) < 0) { |
1562 |
goto fail;
|
1563 |
} |
1564 |
} else {
|
1565 |
if ((p = strchr(devname, '.'))) { |
1566 |
filter.bus_num = strtoul(devname, NULL, 0); |
1567 |
filter.addr = strtoul(p + 1, NULL, 0); |
1568 |
filter.vendor_id = 0;
|
1569 |
filter.product_id = 0;
|
1570 |
} else if ((p = strchr(devname, ':'))) { |
1571 |
filter.bus_num = 0;
|
1572 |
filter.addr = 0;
|
1573 |
filter.vendor_id = strtoul(devname, NULL, 16); |
1574 |
filter.product_id = strtoul(p + 1, NULL, 16); |
1575 |
} else {
|
1576 |
goto fail;
|
1577 |
} |
1578 |
} |
1579 |
|
1580 |
qdev_prop_set_uint32(&dev->qdev, "hostbus", filter.bus_num);
|
1581 |
qdev_prop_set_uint32(&dev->qdev, "hostaddr", filter.addr);
|
1582 |
qdev_prop_set_uint32(&dev->qdev, "vendorid", filter.vendor_id);
|
1583 |
qdev_prop_set_uint32(&dev->qdev, "productid", filter.product_id);
|
1584 |
qdev_init_nofail(&dev->qdev); |
1585 |
return dev;
|
1586 |
|
1587 |
fail:
|
1588 |
qdev_free(&dev->qdev); |
1589 |
return NULL; |
1590 |
} |
1591 |
|
1592 |
int usb_host_device_close(const char *devname) |
1593 |
{ |
1594 |
#if 0
|
1595 |
char product_name[PRODUCT_NAME_SZ];
|
1596 |
int bus_num, addr;
|
1597 |
USBHostDevice *s;
|
1598 |
|
1599 |
if (strstr(devname, "auto:")) {
|
1600 |
return usb_host_auto_del(devname);
|
1601 |
}
|
1602 |
if (usb_host_find_device(&bus_num, &addr, product_name,
|
1603 |
sizeof(product_name), devname) < 0) {
|
1604 |
return -1;
|
1605 |
}
|
1606 |
s = hostdev_find(bus_num, addr);
|
1607 |
if (s) {
|
1608 |
usb_device_delete_addr(s->bus_num, s->dev.addr);
|
1609 |
return 0;
|
1610 |
}
|
1611 |
#endif
|
1612 |
|
1613 |
return -1; |
1614 |
} |
1615 |
|
1616 |
/*
|
1617 |
* Read sys file-system device file
|
1618 |
*
|
1619 |
* @line address of buffer to put file contents in
|
1620 |
* @line_size size of line
|
1621 |
* @device_file path to device file (printf format string)
|
1622 |
* @device_name device being opened (inserted into device_file)
|
1623 |
*
|
1624 |
* @return 0 failed, 1 succeeded ('line' contains data)
|
1625 |
*/
|
1626 |
static int usb_host_read_file(char *line, size_t line_size, |
1627 |
const char *device_file, const char *device_name) |
1628 |
{ |
1629 |
FILE *f; |
1630 |
int ret = 0; |
1631 |
char filename[PATH_MAX];
|
1632 |
|
1633 |
snprintf(filename, PATH_MAX, "/sys/bus/usb/devices/%s/%s", device_name,
|
1634 |
device_file); |
1635 |
f = fopen(filename, "r");
|
1636 |
if (f) {
|
1637 |
ret = fgets(line, line_size, f) != NULL;
|
1638 |
fclose(f); |
1639 |
} |
1640 |
|
1641 |
return ret;
|
1642 |
} |
1643 |
|
1644 |
/*
|
1645 |
* Use /sys/bus/usb/devices/ directory to determine host's USB
|
1646 |
* devices.
|
1647 |
*
|
1648 |
* This code is based on Robert Schiele's original patches posted to
|
1649 |
* the Novell bug-tracker https://bugzilla.novell.com/show_bug.cgi?id=241950
|
1650 |
*/
|
1651 |
static int usb_host_scan(void *opaque, USBScanFunc *func) |
1652 |
{ |
1653 |
DIR *dir = NULL;
|
1654 |
char line[1024]; |
1655 |
int bus_num, addr, speed, class_id, product_id, vendor_id;
|
1656 |
int ret = 0; |
1657 |
char port[MAX_PORTLEN];
|
1658 |
char product_name[512]; |
1659 |
struct dirent *de;
|
1660 |
|
1661 |
dir = opendir("/sys/bus/usb/devices");
|
1662 |
if (!dir) {
|
1663 |
perror("husb: opendir /sys/bus/usb/devices");
|
1664 |
fprintf(stderr, "husb: please make sure sysfs is mounted at /sys\n");
|
1665 |
goto the_end;
|
1666 |
} |
1667 |
|
1668 |
while ((de = readdir(dir))) {
|
1669 |
if (de->d_name[0] != '.' && !strchr(de->d_name, ':')) { |
1670 |
if (sscanf(de->d_name, "%d-%7[0-9.]", &bus_num, port) < 2) { |
1671 |
continue;
|
1672 |
} |
1673 |
|
1674 |
if (!usb_host_read_file(line, sizeof(line), "devnum", de->d_name)) { |
1675 |
goto the_end;
|
1676 |
} |
1677 |
if (sscanf(line, "%d", &addr) != 1) { |
1678 |
goto the_end;
|
1679 |
} |
1680 |
if (!usb_host_read_file(line, sizeof(line), "bDeviceClass", |
1681 |
de->d_name)) { |
1682 |
goto the_end;
|
1683 |
} |
1684 |
if (sscanf(line, "%x", &class_id) != 1) { |
1685 |
goto the_end;
|
1686 |
} |
1687 |
|
1688 |
if (!usb_host_read_file(line, sizeof(line), "idVendor", |
1689 |
de->d_name)) { |
1690 |
goto the_end;
|
1691 |
} |
1692 |
if (sscanf(line, "%x", &vendor_id) != 1) { |
1693 |
goto the_end;
|
1694 |
} |
1695 |
if (!usb_host_read_file(line, sizeof(line), "idProduct", |
1696 |
de->d_name)) { |
1697 |
goto the_end;
|
1698 |
} |
1699 |
if (sscanf(line, "%x", &product_id) != 1) { |
1700 |
goto the_end;
|
1701 |
} |
1702 |
if (!usb_host_read_file(line, sizeof(line), "product", |
1703 |
de->d_name)) { |
1704 |
*product_name = 0;
|
1705 |
} else {
|
1706 |
if (strlen(line) > 0) { |
1707 |
line[strlen(line) - 1] = '\0'; |
1708 |
} |
1709 |
pstrcpy(product_name, sizeof(product_name), line);
|
1710 |
} |
1711 |
|
1712 |
if (!usb_host_read_file(line, sizeof(line), "speed", de->d_name)) { |
1713 |
goto the_end;
|
1714 |
} |
1715 |
if (!strcmp(line, "5000\n")) { |
1716 |
speed = USB_SPEED_SUPER; |
1717 |
} else if (!strcmp(line, "480\n")) { |
1718 |
speed = USB_SPEED_HIGH; |
1719 |
} else if (!strcmp(line, "1.5\n")) { |
1720 |
speed = USB_SPEED_LOW; |
1721 |
} else {
|
1722 |
speed = USB_SPEED_FULL; |
1723 |
} |
1724 |
|
1725 |
ret = func(opaque, bus_num, addr, port, class_id, vendor_id, |
1726 |
product_id, product_name, speed); |
1727 |
if (ret) {
|
1728 |
goto the_end;
|
1729 |
} |
1730 |
} |
1731 |
} |
1732 |
the_end:
|
1733 |
if (dir) {
|
1734 |
closedir(dir); |
1735 |
} |
1736 |
return ret;
|
1737 |
} |
1738 |
|
1739 |
static QEMUTimer *usb_auto_timer;
|
1740 |
static VMChangeStateEntry *usb_vmstate;
|
1741 |
|
1742 |
static int usb_host_auto_scan(void *opaque, int bus_num, |
1743 |
int addr, const char *port, |
1744 |
int class_id, int vendor_id, int product_id, |
1745 |
const char *product_name, int speed) |
1746 |
{ |
1747 |
struct USBAutoFilter *f;
|
1748 |
struct USBHostDevice *s;
|
1749 |
|
1750 |
/* Ignore hubs */
|
1751 |
if (class_id == 9) |
1752 |
return 0; |
1753 |
|
1754 |
QTAILQ_FOREACH(s, &hostdevs, next) { |
1755 |
f = &s->match; |
1756 |
|
1757 |
if (f->bus_num > 0 && f->bus_num != bus_num) { |
1758 |
continue;
|
1759 |
} |
1760 |
if (f->addr > 0 && f->addr != addr) { |
1761 |
continue;
|
1762 |
} |
1763 |
if (f->port != NULL && (port == NULL || strcmp(f->port, port) != 0)) { |
1764 |
continue;
|
1765 |
} |
1766 |
|
1767 |
if (f->vendor_id > 0 && f->vendor_id != vendor_id) { |
1768 |
continue;
|
1769 |
} |
1770 |
|
1771 |
if (f->product_id > 0 && f->product_id != product_id) { |
1772 |
continue;
|
1773 |
} |
1774 |
/* We got a match */
|
1775 |
s->seen++; |
1776 |
if (s->errcount >= 3) { |
1777 |
return 0; |
1778 |
} |
1779 |
|
1780 |
/* Already attached ? */
|
1781 |
if (s->fd != -1) { |
1782 |
return 0; |
1783 |
} |
1784 |
DPRINTF("husb: auto open: bus_num %d addr %d\n", bus_num, addr);
|
1785 |
|
1786 |
if (usb_host_open(s, bus_num, addr, port, product_name, speed) < 0) { |
1787 |
s->errcount++; |
1788 |
} |
1789 |
break;
|
1790 |
} |
1791 |
|
1792 |
return 0; |
1793 |
} |
1794 |
|
1795 |
static void usb_host_vm_state(void *unused, int running, RunState state) |
1796 |
{ |
1797 |
if (running) {
|
1798 |
usb_host_auto_check(unused); |
1799 |
} |
1800 |
} |
1801 |
|
1802 |
static void usb_host_auto_check(void *unused) |
1803 |
{ |
1804 |
struct USBHostDevice *s;
|
1805 |
int unconnected = 0; |
1806 |
|
1807 |
if (runstate_is_running()) {
|
1808 |
usb_host_scan(NULL, usb_host_auto_scan);
|
1809 |
|
1810 |
QTAILQ_FOREACH(s, &hostdevs, next) { |
1811 |
if (s->fd == -1) { |
1812 |
unconnected++; |
1813 |
} |
1814 |
if (s->seen == 0) { |
1815 |
s->errcount = 0;
|
1816 |
} |
1817 |
s->seen = 0;
|
1818 |
} |
1819 |
|
1820 |
if (unconnected == 0) { |
1821 |
/* nothing to watch */
|
1822 |
if (usb_auto_timer) {
|
1823 |
qemu_del_timer(usb_auto_timer); |
1824 |
trace_usb_host_auto_scan_disabled(); |
1825 |
} |
1826 |
return;
|
1827 |
} |
1828 |
} |
1829 |
|
1830 |
if (!usb_vmstate) {
|
1831 |
usb_vmstate = qemu_add_vm_change_state_handler(usb_host_vm_state, NULL);
|
1832 |
} |
1833 |
if (!usb_auto_timer) {
|
1834 |
usb_auto_timer = qemu_new_timer_ms(rt_clock, usb_host_auto_check, NULL);
|
1835 |
if (!usb_auto_timer) {
|
1836 |
return;
|
1837 |
} |
1838 |
trace_usb_host_auto_scan_enabled(); |
1839 |
} |
1840 |
qemu_mod_timer(usb_auto_timer, qemu_get_clock_ms(rt_clock) + 2000);
|
1841 |
} |
1842 |
|
1843 |
/*
|
1844 |
* Autoconnect filter
|
1845 |
* Format:
|
1846 |
* auto:bus:dev[:vid:pid]
|
1847 |
* auto:bus.dev[:vid:pid]
|
1848 |
*
|
1849 |
* bus - bus number (dec, * means any)
|
1850 |
* dev - device number (dec, * means any)
|
1851 |
* vid - vendor id (hex, * means any)
|
1852 |
* pid - product id (hex, * means any)
|
1853 |
*
|
1854 |
* See 'lsusb' output.
|
1855 |
*/
|
1856 |
static int parse_filter(const char *spec, struct USBAutoFilter *f) |
1857 |
{ |
1858 |
enum { BUS, DEV, VID, PID, DONE };
|
1859 |
const char *p = spec; |
1860 |
int i;
|
1861 |
|
1862 |
f->bus_num = 0;
|
1863 |
f->addr = 0;
|
1864 |
f->vendor_id = 0;
|
1865 |
f->product_id = 0;
|
1866 |
|
1867 |
for (i = BUS; i < DONE; i++) {
|
1868 |
p = strpbrk(p, ":.");
|
1869 |
if (!p) {
|
1870 |
break;
|
1871 |
} |
1872 |
p++; |
1873 |
|
1874 |
if (*p == '*') { |
1875 |
continue;
|
1876 |
} |
1877 |
switch(i) {
|
1878 |
case BUS: f->bus_num = strtol(p, NULL, 10); break; |
1879 |
case DEV: f->addr = strtol(p, NULL, 10); break; |
1880 |
case VID: f->vendor_id = strtol(p, NULL, 16); break; |
1881 |
case PID: f->product_id = strtol(p, NULL, 16); break; |
1882 |
} |
1883 |
} |
1884 |
|
1885 |
if (i < DEV) {
|
1886 |
fprintf(stderr, "husb: invalid auto filter spec %s\n", spec);
|
1887 |
return -1; |
1888 |
} |
1889 |
|
1890 |
return 0; |
1891 |
} |
1892 |
|
1893 |
/**********************/
|
1894 |
/* USB host device info */
|
1895 |
|
1896 |
struct usb_class_info {
|
1897 |
int class;
|
1898 |
const char *class_name; |
1899 |
}; |
1900 |
|
1901 |
static const struct usb_class_info usb_class_info[] = { |
1902 |
{ USB_CLASS_AUDIO, "Audio"},
|
1903 |
{ USB_CLASS_COMM, "Communication"},
|
1904 |
{ USB_CLASS_HID, "HID"},
|
1905 |
{ USB_CLASS_HUB, "Hub" },
|
1906 |
{ USB_CLASS_PHYSICAL, "Physical" },
|
1907 |
{ USB_CLASS_PRINTER, "Printer" },
|
1908 |
{ USB_CLASS_MASS_STORAGE, "Storage" },
|
1909 |
{ USB_CLASS_CDC_DATA, "Data" },
|
1910 |
{ USB_CLASS_APP_SPEC, "Application Specific" },
|
1911 |
{ USB_CLASS_VENDOR_SPEC, "Vendor Specific" },
|
1912 |
{ USB_CLASS_STILL_IMAGE, "Still Image" },
|
1913 |
{ USB_CLASS_CSCID, "Smart Card" },
|
1914 |
{ USB_CLASS_CONTENT_SEC, "Content Security" },
|
1915 |
{ -1, NULL } |
1916 |
}; |
1917 |
|
1918 |
static const char *usb_class_str(uint8_t class) |
1919 |
{ |
1920 |
const struct usb_class_info *p; |
1921 |
for(p = usb_class_info; p->class != -1; p++) { |
1922 |
if (p->class == class) {
|
1923 |
break;
|
1924 |
} |
1925 |
} |
1926 |
return p->class_name;
|
1927 |
} |
1928 |
|
1929 |
static void usb_info_device(Monitor *mon, int bus_num, |
1930 |
int addr, const char *port, |
1931 |
int class_id, int vendor_id, int product_id, |
1932 |
const char *product_name, |
1933 |
int speed)
|
1934 |
{ |
1935 |
const char *class_str, *speed_str; |
1936 |
|
1937 |
switch(speed) {
|
1938 |
case USB_SPEED_LOW:
|
1939 |
speed_str = "1.5";
|
1940 |
break;
|
1941 |
case USB_SPEED_FULL:
|
1942 |
speed_str = "12";
|
1943 |
break;
|
1944 |
case USB_SPEED_HIGH:
|
1945 |
speed_str = "480";
|
1946 |
break;
|
1947 |
case USB_SPEED_SUPER:
|
1948 |
speed_str = "5000";
|
1949 |
break;
|
1950 |
default:
|
1951 |
speed_str = "?";
|
1952 |
break;
|
1953 |
} |
1954 |
|
1955 |
monitor_printf(mon, " Bus %d, Addr %d, Port %s, Speed %s Mb/s\n",
|
1956 |
bus_num, addr, port, speed_str); |
1957 |
class_str = usb_class_str(class_id); |
1958 |
if (class_str) {
|
1959 |
monitor_printf(mon, " %s:", class_str);
|
1960 |
} else {
|
1961 |
monitor_printf(mon, " Class %02x:", class_id);
|
1962 |
} |
1963 |
monitor_printf(mon, " USB device %04x:%04x", vendor_id, product_id);
|
1964 |
if (product_name[0] != '\0') { |
1965 |
monitor_printf(mon, ", %s", product_name);
|
1966 |
} |
1967 |
monitor_printf(mon, "\n");
|
1968 |
} |
1969 |
|
1970 |
static int usb_host_info_device(void *opaque, int bus_num, int addr, |
1971 |
const char *path, int class_id, |
1972 |
int vendor_id, int product_id, |
1973 |
const char *product_name, |
1974 |
int speed)
|
1975 |
{ |
1976 |
Monitor *mon = opaque; |
1977 |
|
1978 |
usb_info_device(mon, bus_num, addr, path, class_id, vendor_id, product_id, |
1979 |
product_name, speed); |
1980 |
return 0; |
1981 |
} |
1982 |
|
1983 |
static void dec2str(int val, char *str, size_t size) |
1984 |
{ |
1985 |
if (val == 0) { |
1986 |
snprintf(str, size, "*");
|
1987 |
} else {
|
1988 |
snprintf(str, size, "%d", val);
|
1989 |
} |
1990 |
} |
1991 |
|
1992 |
static void hex2str(int val, char *str, size_t size) |
1993 |
{ |
1994 |
if (val == 0) { |
1995 |
snprintf(str, size, "*");
|
1996 |
} else {
|
1997 |
snprintf(str, size, "%04x", val);
|
1998 |
} |
1999 |
} |
2000 |
|
2001 |
void usb_host_info(Monitor *mon)
|
2002 |
{ |
2003 |
struct USBAutoFilter *f;
|
2004 |
struct USBHostDevice *s;
|
2005 |
|
2006 |
usb_host_scan(mon, usb_host_info_device); |
2007 |
|
2008 |
if (QTAILQ_EMPTY(&hostdevs)) {
|
2009 |
return;
|
2010 |
} |
2011 |
|
2012 |
monitor_printf(mon, " Auto filters:\n");
|
2013 |
QTAILQ_FOREACH(s, &hostdevs, next) { |
2014 |
char bus[10], addr[10], vid[10], pid[10]; |
2015 |
f = &s->match; |
2016 |
dec2str(f->bus_num, bus, sizeof(bus));
|
2017 |
dec2str(f->addr, addr, sizeof(addr));
|
2018 |
hex2str(f->vendor_id, vid, sizeof(vid));
|
2019 |
hex2str(f->product_id, pid, sizeof(pid));
|
2020 |
monitor_printf(mon, " Bus %s, Addr %s, Port %s, ID %s:%s\n",
|
2021 |
bus, addr, f->port ? f->port : "*", vid, pid);
|
2022 |
} |
2023 |
} |