root / hw / usb / host-linux.c @ 39c20577
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/*
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|---|---|
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* Linux host USB redirector
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*
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| 4 |
* Copyright (c) 2005 Fabrice Bellard
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*
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| 6 |
* Copyright (c) 2008 Max Krasnyansky
|
| 7 |
* Support for host device auto connect & disconnect
|
| 8 |
* Major rewrite to support fully async operation
|
| 9 |
*
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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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| 19 |
* 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
|
| 22 |
* 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" |
| 34 |
#include "qemu-timer.h" |
| 35 |
#include "monitor.h" |
| 36 |
#include "sysemu.h" |
| 37 |
#include "trace.h" |
| 38 |
|
| 39 |
#include <dirent.h> |
| 40 |
#include <sys/ioctl.h> |
| 41 |
|
| 42 |
#include <linux/usbdevice_fs.h> |
| 43 |
#include <linux/version.h> |
| 44 |
#include "hw/usb.h" |
| 45 |
|
| 46 |
/* We redefine it to avoid version problems */
|
| 47 |
struct usb_ctrltransfer {
|
| 48 |
uint8_t bRequestType; |
| 49 |
uint8_t bRequest; |
| 50 |
uint16_t wValue; |
| 51 |
uint16_t wIndex; |
| 52 |
uint16_t wLength; |
| 53 |
uint32_t timeout; |
| 54 |
void *data;
|
| 55 |
}; |
| 56 |
|
| 57 |
typedef int USBScanFunc(void *opaque, int bus_num, int addr, const char *port, |
| 58 |
int class_id, int vendor_id, int product_id, |
| 59 |
const char *product_name, int speed); |
| 60 |
|
| 61 |
//#define DEBUG
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|
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#ifdef DEBUG
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| 64 |
#define DPRINTF printf
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| 65 |
#else
|
| 66 |
#define DPRINTF(...)
|
| 67 |
#endif
|
| 68 |
|
| 69 |
#define PRODUCT_NAME_SZ 32 |
| 70 |
#define MAX_PORTLEN 16 |
| 71 |
|
| 72 |
/* endpoint association data */
|
| 73 |
#define ISO_FRAME_DESC_PER_URB 32 |
| 74 |
|
| 75 |
/* devio.c limits single requests to 16k */
|
| 76 |
#define MAX_USBFS_BUFFER_SIZE 16384 |
| 77 |
|
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typedef struct AsyncURB AsyncURB; |
| 79 |
|
| 80 |
struct endp_data {
|
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uint8_t halted; |
| 82 |
uint8_t iso_started; |
| 83 |
AsyncURB *iso_urb; |
| 84 |
int iso_urb_idx;
|
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int iso_buffer_used;
|
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int inflight;
|
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}; |
| 88 |
|
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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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}; |
| 96 |
|
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enum USBHostDeviceOptions {
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USB_HOST_OPT_PIPELINE, |
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}; |
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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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|
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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; |
| 111 |
uint32_t options; |
| 112 |
Notifier exit; |
| 113 |
|
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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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|
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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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|
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QTAILQ_ENTRY(USBHostDevice) next; |
| 127 |
} USBHostDevice; |
| 128 |
|
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static QTAILQ_HEAD(, USBHostDevice) hostdevs = QTAILQ_HEAD_INITIALIZER(hostdevs);
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|
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static int usb_host_close(USBHostDevice *dev); |
| 132 |
static int parse_filter(const char *spec, struct USBAutoFilter *f); |
| 133 |
static void usb_host_auto_check(void *unused); |
| 134 |
static int usb_host_read_file(char *line, size_t line_size, |
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const char *device_file, const char *device_name); |
| 136 |
static int usb_linux_update_endp_table(USBHostDevice *s); |
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|
| 138 |
static int usb_host_usbfs_type(USBHostDevice *s, USBPacket *p) |
| 139 |
{
|
| 140 |
static const int usbfs[] = { |
| 141 |
[USB_ENDPOINT_XFER_CONTROL] = USBDEVFS_URB_TYPE_CONTROL, |
| 142 |
[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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}; |
| 146 |
uint8_t type = p->ep->type; |
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assert(type < ARRAY_SIZE(usbfs)); |
| 148 |
return usbfs[type];
|
| 149 |
} |
| 150 |
|
| 151 |
static int usb_host_do_reset(USBHostDevice *dev) |
| 152 |
{
|
| 153 |
struct timeval s, e;
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uint32_t usecs; |
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int ret;
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|
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gettimeofday(&s, NULL);
|
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ret = ioctl(dev->fd, USBDEVFS_RESET); |
| 159 |
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; |
| 162 |
if (usecs > 1000000) { |
| 163 |
/* 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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} |
| 167 |
return ret;
|
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} |
| 169 |
|
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static struct endp_data *get_endp(USBHostDevice *s, int pid, int ep) |
| 171 |
{
|
| 172 |
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); |
| 174 |
assert(ep > 0 && ep <= USB_MAX_ENDPOINTS);
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return eps + ep - 1; |
| 176 |
} |
| 177 |
|
| 178 |
static int is_isoc(USBHostDevice *s, int pid, int ep) |
| 179 |
{
|
| 180 |
return usb_ep_get_type(&s->dev, pid, ep) == USB_ENDPOINT_XFER_ISOC;
|
| 181 |
} |
| 182 |
|
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static int is_valid(USBHostDevice *s, int pid, int ep) |
| 184 |
{
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return usb_ep_get_type(&s->dev, pid, ep) != USB_ENDPOINT_XFER_INVALID;
|
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} |
| 187 |
|
| 188 |
static int is_halted(USBHostDevice *s, int pid, int ep) |
| 189 |
{
|
| 190 |
return get_endp(s, pid, ep)->halted;
|
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} |
| 192 |
|
| 193 |
static void clear_halt(USBHostDevice *s, int pid, int ep) |
| 194 |
{
|
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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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} |
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|
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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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|
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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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|
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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_ep_stop_iso(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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|
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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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|
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trace_usb_host_ep_start_iso(s->bus_num, s->addr, ep); |
| 223 |
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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|
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static int change_iso_inflight(USBHostDevice *s, int pid, int ep, int value) |
| 230 |
{
|
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struct endp_data *e = get_endp(s, pid, ep);
|
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|
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e->inflight += value; |
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return e->inflight;
|
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} |
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|
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static void set_iso_urb(USBHostDevice *s, int pid, int ep, AsyncURB *iso_urb) |
| 238 |
{
|
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get_endp(s, pid, ep)->iso_urb = iso_urb; |
| 240 |
} |
| 241 |
|
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static AsyncURB *get_iso_urb(USBHostDevice *s, int pid, int ep) |
| 243 |
{
|
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return get_endp(s, pid, ep)->iso_urb;
|
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} |
| 246 |
|
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static void set_iso_urb_idx(USBHostDevice *s, int pid, int ep, int i) |
| 248 |
{
|
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get_endp(s, pid, ep)->iso_urb_idx = i; |
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} |
| 251 |
|
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static int get_iso_urb_idx(USBHostDevice *s, int pid, int ep) |
| 253 |
{
|
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return get_endp(s, pid, ep)->iso_urb_idx;
|
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} |
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|
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static void set_iso_buffer_used(USBHostDevice *s, int pid, int ep, int i) |
| 258 |
{
|
| 259 |
get_endp(s, pid, ep)->iso_buffer_used = i; |
| 260 |
} |
| 261 |
|
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static int get_iso_buffer_used(USBHostDevice *s, int pid, int ep) |
| 263 |
{
|
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return get_endp(s, pid, ep)->iso_buffer_used;
|
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} |
| 266 |
|
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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; |
| 278 |
|
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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 */ |
| 282 |
|
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/* For buffered iso handling */
|
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int iso_frame_idx; /* -1 means in flight */ |
| 285 |
}; |
| 286 |
|
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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; |
| 291 |
QLIST_INSERT_HEAD(&s->aurbs, aurb, next); |
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return aurb;
|
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} |
| 294 |
|
| 295 |
static void async_free(AsyncURB *aurb) |
| 296 |
{
|
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QLIST_REMOVE(aurb, next); |
| 298 |
g_free(aurb); |
| 299 |
} |
| 300 |
|
| 301 |
static void do_disconnect(USBHostDevice *s) |
| 302 |
{
|
| 303 |
usb_host_close(s); |
| 304 |
usb_host_auto_check(NULL);
|
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} |
| 306 |
|
| 307 |
static void async_complete(void *opaque) |
| 308 |
{
|
| 309 |
USBHostDevice *s = opaque; |
| 310 |
AsyncURB *aurb; |
| 311 |
int urbs = 0; |
| 312 |
|
| 313 |
while (1) { |
| 314 |
USBPacket *p; |
| 315 |
|
| 316 |
int r = ioctl(s->fd, USBDEVFS_REAPURBNDELAY, &aurb);
|
| 317 |
if (r < 0) { |
| 318 |
if (errno == EAGAIN) {
|
| 319 |
if (urbs > 2) { |
| 320 |
fprintf(stderr, "husb: %d iso urbs finished at once\n", urbs);
|
| 321 |
} |
| 322 |
return;
|
| 323 |
} |
| 324 |
if (errno == ENODEV) {
|
| 325 |
if (!s->closing) {
|
| 326 |
trace_usb_host_disconnect(s->bus_num, s->addr); |
| 327 |
do_disconnect(s); |
| 328 |
} |
| 329 |
return;
|
| 330 |
} |
| 331 |
|
| 332 |
perror("USBDEVFS_REAPURBNDELAY");
|
| 333 |
return;
|
| 334 |
} |
| 335 |
|
| 336 |
DPRINTF("husb: async completed. aurb %p status %d alen %d\n",
|
| 337 |
aurb, aurb->urb.status, aurb->urb.actual_length); |
| 338 |
|
| 339 |
/* If this is a buffered iso urb mark it as complete and don't do
|
| 340 |
anything else (it is handled further in usb_host_handle_iso_data) */
|
| 341 |
if (aurb->iso_frame_idx == -1) { |
| 342 |
int inflight;
|
| 343 |
int pid = (aurb->urb.endpoint & USB_DIR_IN) ?
|
| 344 |
USB_TOKEN_IN : USB_TOKEN_OUT; |
| 345 |
int ep = aurb->urb.endpoint & 0xf; |
| 346 |
if (aurb->urb.status == -EPIPE) {
|
| 347 |
set_halt(s, pid, ep); |
| 348 |
} |
| 349 |
aurb->iso_frame_idx = 0;
|
| 350 |
urbs++; |
| 351 |
inflight = change_iso_inflight(s, pid, ep, -1);
|
| 352 |
if (inflight == 0 && is_iso_started(s, pid, ep)) { |
| 353 |
fprintf(stderr, "husb: out of buffers for iso stream\n");
|
| 354 |
} |
| 355 |
continue;
|
| 356 |
} |
| 357 |
|
| 358 |
p = aurb->packet; |
| 359 |
trace_usb_host_urb_complete(s->bus_num, s->addr, aurb, aurb->urb.status, |
| 360 |
aurb->urb.actual_length, aurb->more); |
| 361 |
|
| 362 |
if (p) {
|
| 363 |
switch (aurb->urb.status) {
|
| 364 |
case 0: |
| 365 |
p->result += aurb->urb.actual_length; |
| 366 |
break;
|
| 367 |
|
| 368 |
case -EPIPE:
|
| 369 |
set_halt(s, p->pid, p->ep->nr); |
| 370 |
p->result = USB_RET_STALL; |
| 371 |
break;
|
| 372 |
|
| 373 |
case -EOVERFLOW:
|
| 374 |
p->result = USB_RET_BABBLE; |
| 375 |
break;
|
| 376 |
|
| 377 |
default:
|
| 378 |
p->result = USB_RET_IOERROR; |
| 379 |
break;
|
| 380 |
} |
| 381 |
|
| 382 |
if (aurb->urb.type == USBDEVFS_URB_TYPE_CONTROL) {
|
| 383 |
trace_usb_host_req_complete(s->bus_num, s->addr, p, p->result); |
| 384 |
usb_generic_async_ctrl_complete(&s->dev, p); |
| 385 |
} else if (!aurb->more) { |
| 386 |
trace_usb_host_req_complete(s->bus_num, s->addr, p, p->result); |
| 387 |
usb_packet_complete(&s->dev, p); |
| 388 |
} |
| 389 |
} |
| 390 |
|
| 391 |
async_free(aurb); |
| 392 |
} |
| 393 |
} |
| 394 |
|
| 395 |
static void usb_host_async_cancel(USBDevice *dev, USBPacket *p) |
| 396 |
{
|
| 397 |
USBHostDevice *s = DO_UPCAST(USBHostDevice, dev, dev); |
| 398 |
AsyncURB *aurb; |
| 399 |
|
| 400 |
trace_usb_host_req_canceled(s->bus_num, s->addr, p); |
| 401 |
|
| 402 |
QLIST_FOREACH(aurb, &s->aurbs, next) {
|
| 403 |
if (p != aurb->packet) {
|
| 404 |
continue;
|
| 405 |
} |
| 406 |
|
| 407 |
trace_usb_host_urb_canceled(s->bus_num, s->addr, aurb); |
| 408 |
|
| 409 |
/* Mark it as dead (see async_complete above) */
|
| 410 |
aurb->packet = NULL;
|
| 411 |
|
| 412 |
int r = ioctl(s->fd, USBDEVFS_DISCARDURB, aurb);
|
| 413 |
if (r < 0) { |
| 414 |
DPRINTF("husb: async. discard urb failed errno %d\n", errno);
|
| 415 |
} |
| 416 |
} |
| 417 |
} |
| 418 |
|
| 419 |
static int usb_host_open_device(int bus, int addr) |
| 420 |
{
|
| 421 |
const char *usbfs = NULL; |
| 422 |
char filename[32]; |
| 423 |
struct stat st;
|
| 424 |
int fd, rc;
|
| 425 |
|
| 426 |
rc = stat("/dev/bus/usb", &st);
|
| 427 |
if (rc == 0 && S_ISDIR(st.st_mode)) { |
| 428 |
/* udev-created device nodes available */
|
| 429 |
usbfs = "/dev/bus/usb";
|
| 430 |
} else {
|
| 431 |
/* fallback: usbfs mounted below /proc */
|
| 432 |
usbfs = "/proc/bus/usb";
|
| 433 |
} |
| 434 |
|
| 435 |
snprintf(filename, sizeof(filename), "%s/%03d/%03d", |
| 436 |
usbfs, bus, addr); |
| 437 |
fd = open(filename, O_RDWR | O_NONBLOCK); |
| 438 |
if (fd < 0) { |
| 439 |
fprintf(stderr, "husb: open %s: %s\n", filename, strerror(errno));
|
| 440 |
} |
| 441 |
return fd;
|
| 442 |
} |
| 443 |
|
| 444 |
static int usb_host_claim_port(USBHostDevice *s) |
| 445 |
{
|
| 446 |
#ifdef USBDEVFS_CLAIM_PORT
|
| 447 |
char *h, hub_name[64], line[1024]; |
| 448 |
int hub_addr, ret;
|
| 449 |
|
| 450 |
snprintf(hub_name, sizeof(hub_name), "%d-%s", |
| 451 |
s->match.bus_num, s->match.port); |
| 452 |
|
| 453 |
/* try strip off last ".$portnr" to get hub */
|
| 454 |
h = strrchr(hub_name, '.');
|
| 455 |
if (h != NULL) { |
| 456 |
s->hub_port = atoi(h+1);
|
| 457 |
*h = '\0';
|
| 458 |
} else {
|
| 459 |
/* no dot in there -> it is the root hub */
|
| 460 |
snprintf(hub_name, sizeof(hub_name), "usb%d", |
| 461 |
s->match.bus_num); |
| 462 |
s->hub_port = atoi(s->match.port); |
| 463 |
} |
| 464 |
|
| 465 |
if (!usb_host_read_file(line, sizeof(line), "devnum", |
| 466 |
hub_name)) {
|
| 467 |
return -1; |
| 468 |
} |
| 469 |
if (sscanf(line, "%d", &hub_addr) != 1) { |
| 470 |
return -1; |
| 471 |
} |
| 472 |
|
| 473 |
s->hub_fd = usb_host_open_device(s->match.bus_num, hub_addr); |
| 474 |
if (s->hub_fd < 0) { |
| 475 |
return -1; |
| 476 |
} |
| 477 |
|
| 478 |
ret = ioctl(s->hub_fd, USBDEVFS_CLAIM_PORT, &s->hub_port); |
| 479 |
if (ret < 0) { |
| 480 |
close(s->hub_fd); |
| 481 |
s->hub_fd = -1;
|
| 482 |
return -1; |
| 483 |
} |
| 484 |
|
| 485 |
trace_usb_host_claim_port(s->match.bus_num, hub_addr, s->hub_port); |
| 486 |
return 0; |
| 487 |
#else
|
| 488 |
return -1; |
| 489 |
#endif
|
| 490 |
} |
| 491 |
|
| 492 |
static void usb_host_release_port(USBHostDevice *s) |
| 493 |
{
|
| 494 |
if (s->hub_fd == -1) { |
| 495 |
return;
|
| 496 |
} |
| 497 |
#ifdef USBDEVFS_RELEASE_PORT
|
| 498 |
ioctl(s->hub_fd, USBDEVFS_RELEASE_PORT, &s->hub_port); |
| 499 |
#endif
|
| 500 |
close(s->hub_fd); |
| 501 |
s->hub_fd = -1;
|
| 502 |
} |
| 503 |
|
| 504 |
static int usb_host_disconnect_ifaces(USBHostDevice *dev, int nb_interfaces) |
| 505 |
{
|
| 506 |
/* earlier Linux 2.4 do not support that */
|
| 507 |
#ifdef USBDEVFS_DISCONNECT
|
| 508 |
struct usbdevfs_ioctl ctrl;
|
| 509 |
int ret, interface;
|
| 510 |
|
| 511 |
for (interface = 0; interface < nb_interfaces; interface++) { |
| 512 |
ctrl.ioctl_code = USBDEVFS_DISCONNECT; |
| 513 |
ctrl.ifno = interface; |
| 514 |
ctrl.data = 0;
|
| 515 |
ret = ioctl(dev->fd, USBDEVFS_IOCTL, &ctrl); |
| 516 |
if (ret < 0 && errno != ENODATA) { |
| 517 |
perror("USBDEVFS_DISCONNECT");
|
| 518 |
return -1; |
| 519 |
} |
| 520 |
} |
| 521 |
#endif
|
| 522 |
return 0; |
| 523 |
} |
| 524 |
|
| 525 |
static int usb_linux_get_num_interfaces(USBHostDevice *s) |
| 526 |
{
|
| 527 |
char device_name[64], line[1024]; |
| 528 |
int num_interfaces = 0; |
| 529 |
|
| 530 |
sprintf(device_name, "%d-%s", s->bus_num, s->port);
|
| 531 |
if (!usb_host_read_file(line, sizeof(line), "bNumInterfaces", |
| 532 |
device_name)) {
|
| 533 |
return -1; |
| 534 |
} |
| 535 |
if (sscanf(line, "%d", &num_interfaces) != 1) { |
| 536 |
return -1; |
| 537 |
} |
| 538 |
return num_interfaces;
|
| 539 |
} |
| 540 |
|
| 541 |
static int usb_host_claim_interfaces(USBHostDevice *dev, int configuration) |
| 542 |
{
|
| 543 |
const char *op = NULL; |
| 544 |
int dev_descr_len, config_descr_len;
|
| 545 |
int interface, nb_interfaces;
|
| 546 |
int ret, i;
|
| 547 |
|
| 548 |
for (i = 0; i < USB_MAX_INTERFACES; i++) { |
| 549 |
dev->dev.altsetting[i] = 0;
|
| 550 |
} |
| 551 |
|
| 552 |
if (configuration == 0) { /* address state - ignore */ |
| 553 |
dev->dev.ninterfaces = 0;
|
| 554 |
dev->dev.configuration = 0;
|
| 555 |
return 1; |
| 556 |
} |
| 557 |
|
| 558 |
DPRINTF("husb: claiming interfaces. config %d\n", configuration);
|
| 559 |
|
| 560 |
i = 0;
|
| 561 |
dev_descr_len = dev->descr[0];
|
| 562 |
if (dev_descr_len > dev->descr_len) {
|
| 563 |
fprintf(stderr, "husb: update iface failed. descr too short\n");
|
| 564 |
return 0; |
| 565 |
} |
| 566 |
|
| 567 |
i += dev_descr_len; |
| 568 |
while (i < dev->descr_len) {
|
| 569 |
DPRINTF("husb: i is %d, descr_len is %d, dl %d, dt %d\n",
|
| 570 |
i, dev->descr_len, |
| 571 |
dev->descr[i], dev->descr[i+1]);
|
| 572 |
|
| 573 |
if (dev->descr[i+1] != USB_DT_CONFIG) { |
| 574 |
i += dev->descr[i]; |
| 575 |
continue;
|
| 576 |
} |
| 577 |
config_descr_len = dev->descr[i]; |
| 578 |
|
| 579 |
DPRINTF("husb: config #%d need %d\n", dev->descr[i + 5], configuration); |
| 580 |
|
| 581 |
if (configuration == dev->descr[i + 5]) { |
| 582 |
configuration = dev->descr[i + 5];
|
| 583 |
break;
|
| 584 |
} |
| 585 |
|
| 586 |
i += config_descr_len; |
| 587 |
} |
| 588 |
|
| 589 |
if (i >= dev->descr_len) {
|
| 590 |
fprintf(stderr, |
| 591 |
"husb: update iface failed. no matching configuration\n");
|
| 592 |
return 0; |
| 593 |
} |
| 594 |
nb_interfaces = dev->descr[i + 4];
|
| 595 |
|
| 596 |
if (usb_host_disconnect_ifaces(dev, nb_interfaces) < 0) { |
| 597 |
goto fail;
|
| 598 |
} |
| 599 |
|
| 600 |
/* XXX: only grab if all interfaces are free */
|
| 601 |
for (interface = 0; interface < nb_interfaces; interface++) { |
| 602 |
op = "USBDEVFS_CLAIMINTERFACE";
|
| 603 |
ret = ioctl(dev->fd, USBDEVFS_CLAIMINTERFACE, &interface); |
| 604 |
if (ret < 0) { |
| 605 |
goto fail;
|
| 606 |
} |
| 607 |
} |
| 608 |
|
| 609 |
trace_usb_host_claim_interfaces(dev->bus_num, dev->addr, |
| 610 |
nb_interfaces, configuration); |
| 611 |
|
| 612 |
dev->dev.ninterfaces = nb_interfaces; |
| 613 |
dev->dev.configuration = configuration; |
| 614 |
return 1; |
| 615 |
|
| 616 |
fail:
|
| 617 |
if (errno == ENODEV) {
|
| 618 |
do_disconnect(dev); |
| 619 |
} |
| 620 |
perror(op); |
| 621 |
return 0; |
| 622 |
} |
| 623 |
|
| 624 |
static int usb_host_release_interfaces(USBHostDevice *s) |
| 625 |
{
|
| 626 |
int ret, i;
|
| 627 |
|
| 628 |
trace_usb_host_release_interfaces(s->bus_num, s->addr); |
| 629 |
|
| 630 |
for (i = 0; i < s->dev.ninterfaces; i++) { |
| 631 |
ret = ioctl(s->fd, USBDEVFS_RELEASEINTERFACE, &i); |
| 632 |
if (ret < 0) { |
| 633 |
perror("USBDEVFS_RELEASEINTERFACE");
|
| 634 |
return 0; |
| 635 |
} |
| 636 |
} |
| 637 |
return 1; |
| 638 |
} |
| 639 |
|
| 640 |
static void usb_host_handle_reset(USBDevice *dev) |
| 641 |
{
|
| 642 |
USBHostDevice *s = DO_UPCAST(USBHostDevice, dev, dev); |
| 643 |
|
| 644 |
trace_usb_host_reset(s->bus_num, s->addr); |
| 645 |
|
| 646 |
usb_host_do_reset(s);; |
| 647 |
|
| 648 |
usb_host_claim_interfaces(s, 0);
|
| 649 |
usb_linux_update_endp_table(s); |
| 650 |
} |
| 651 |
|
| 652 |
static void usb_host_handle_destroy(USBDevice *dev) |
| 653 |
{
|
| 654 |
USBHostDevice *s = (USBHostDevice *)dev; |
| 655 |
|
| 656 |
usb_host_release_port(s); |
| 657 |
usb_host_close(s); |
| 658 |
QTAILQ_REMOVE(&hostdevs, s, next); |
| 659 |
qemu_remove_exit_notifier(&s->exit); |
| 660 |
} |
| 661 |
|
| 662 |
/* iso data is special, we need to keep enough urbs in flight to make sure
|
| 663 |
that the controller never runs out of them, otherwise the device will
|
| 664 |
likely suffer a buffer underrun / overrun. */
|
| 665 |
static AsyncURB *usb_host_alloc_iso(USBHostDevice *s, int pid, uint8_t ep) |
| 666 |
{
|
| 667 |
AsyncURB *aurb; |
| 668 |
int i, j, len = usb_ep_get_max_packet_size(&s->dev, pid, ep);
|
| 669 |
|
| 670 |
aurb = g_malloc0(s->iso_urb_count * sizeof(*aurb));
|
| 671 |
for (i = 0; i < s->iso_urb_count; i++) { |
| 672 |
aurb[i].urb.endpoint = ep; |
| 673 |
aurb[i].urb.buffer_length = ISO_FRAME_DESC_PER_URB * len; |
| 674 |
aurb[i].urb.buffer = g_malloc(aurb[i].urb.buffer_length); |
| 675 |
aurb[i].urb.type = USBDEVFS_URB_TYPE_ISO; |
| 676 |
aurb[i].urb.flags = USBDEVFS_URB_ISO_ASAP; |
| 677 |
aurb[i].urb.number_of_packets = ISO_FRAME_DESC_PER_URB; |
| 678 |
for (j = 0 ; j < ISO_FRAME_DESC_PER_URB; j++) |
| 679 |
aurb[i].urb.iso_frame_desc[j].length = len; |
| 680 |
if (pid == USB_TOKEN_IN) {
|
| 681 |
aurb[i].urb.endpoint |= 0x80;
|
| 682 |
/* Mark as fully consumed (idle) */
|
| 683 |
aurb[i].iso_frame_idx = ISO_FRAME_DESC_PER_URB; |
| 684 |
} |
| 685 |
} |
| 686 |
set_iso_urb(s, pid, ep, aurb); |
| 687 |
|
| 688 |
return aurb;
|
| 689 |
} |
| 690 |
|
| 691 |
static void usb_host_stop_n_free_iso(USBHostDevice *s, int pid, uint8_t ep) |
| 692 |
{
|
| 693 |
AsyncURB *aurb; |
| 694 |
int i, ret, killed = 0, free = 1; |
| 695 |
|
| 696 |
aurb = get_iso_urb(s, pid, ep); |
| 697 |
if (!aurb) {
|
| 698 |
return;
|
| 699 |
} |
| 700 |
|
| 701 |
for (i = 0; i < s->iso_urb_count; i++) { |
| 702 |
/* in flight? */
|
| 703 |
if (aurb[i].iso_frame_idx == -1) { |
| 704 |
ret = ioctl(s->fd, USBDEVFS_DISCARDURB, &aurb[i]); |
| 705 |
if (ret < 0) { |
| 706 |
perror("USBDEVFS_DISCARDURB");
|
| 707 |
free = 0;
|
| 708 |
continue;
|
| 709 |
} |
| 710 |
killed++; |
| 711 |
} |
| 712 |
} |
| 713 |
|
| 714 |
/* Make sure any urbs we've killed are reaped before we free them */
|
| 715 |
if (killed) {
|
| 716 |
async_complete(s); |
| 717 |
} |
| 718 |
|
| 719 |
for (i = 0; i < s->iso_urb_count; i++) { |
| 720 |
g_free(aurb[i].urb.buffer); |
| 721 |
} |
| 722 |
|
| 723 |
if (free)
|
| 724 |
g_free(aurb); |
| 725 |
else
|
| 726 |
printf("husb: leaking iso urbs because of discard failure\n");
|
| 727 |
set_iso_urb(s, pid, ep, NULL);
|
| 728 |
set_iso_urb_idx(s, pid, ep, 0);
|
| 729 |
clear_iso_started(s, pid, ep); |
| 730 |
} |
| 731 |
|
| 732 |
static int urb_status_to_usb_ret(int status) |
| 733 |
{
|
| 734 |
switch (status) {
|
| 735 |
case -EPIPE:
|
| 736 |
return USB_RET_STALL;
|
| 737 |
case -EOVERFLOW:
|
| 738 |
return USB_RET_BABBLE;
|
| 739 |
default:
|
| 740 |
return USB_RET_IOERROR;
|
| 741 |
} |
| 742 |
} |
| 743 |
|
| 744 |
static int usb_host_handle_iso_data(USBHostDevice *s, USBPacket *p, int in) |
| 745 |
{
|
| 746 |
AsyncURB *aurb; |
| 747 |
int i, j, ret, max_packet_size, offset, len = 0; |
| 748 |
uint8_t *buf; |
| 749 |
|
| 750 |
max_packet_size = p->ep->max_packet_size; |
| 751 |
if (max_packet_size == 0) |
| 752 |
return USB_RET_NAK;
|
| 753 |
|
| 754 |
aurb = get_iso_urb(s, p->pid, p->ep->nr); |
| 755 |
if (!aurb) {
|
| 756 |
aurb = usb_host_alloc_iso(s, p->pid, p->ep->nr); |
| 757 |
} |
| 758 |
|
| 759 |
i = get_iso_urb_idx(s, p->pid, p->ep->nr); |
| 760 |
j = aurb[i].iso_frame_idx; |
| 761 |
if (j >= 0 && j < ISO_FRAME_DESC_PER_URB) { |
| 762 |
if (in) {
|
| 763 |
/* Check urb status */
|
| 764 |
if (aurb[i].urb.status) {
|
| 765 |
len = urb_status_to_usb_ret(aurb[i].urb.status); |
| 766 |
/* Move to the next urb */
|
| 767 |
aurb[i].iso_frame_idx = ISO_FRAME_DESC_PER_URB - 1;
|
| 768 |
/* Check frame status */
|
| 769 |
} else if (aurb[i].urb.iso_frame_desc[j].status) { |
| 770 |
len = urb_status_to_usb_ret( |
| 771 |
aurb[i].urb.iso_frame_desc[j].status); |
| 772 |
/* Check the frame fits */
|
| 773 |
} else if (aurb[i].urb.iso_frame_desc[j].actual_length |
| 774 |
> p->iov.size) {
|
| 775 |
printf("husb: received iso data is larger then packet\n");
|
| 776 |
len = USB_RET_BABBLE; |
| 777 |
/* All good copy data over */
|
| 778 |
} else {
|
| 779 |
len = aurb[i].urb.iso_frame_desc[j].actual_length; |
| 780 |
buf = aurb[i].urb.buffer + |
| 781 |
j * aurb[i].urb.iso_frame_desc[0].length;
|
| 782 |
usb_packet_copy(p, buf, len); |
| 783 |
} |
| 784 |
} else {
|
| 785 |
len = p->iov.size; |
| 786 |
offset = (j == 0) ? 0 : get_iso_buffer_used(s, p->pid, p->ep->nr); |
| 787 |
|
| 788 |
/* Check the frame fits */
|
| 789 |
if (len > max_packet_size) {
|
| 790 |
printf("husb: send iso data is larger then max packet size\n");
|
| 791 |
return USB_RET_NAK;
|
| 792 |
} |
| 793 |
|
| 794 |
/* All good copy data over */
|
| 795 |
usb_packet_copy(p, aurb[i].urb.buffer + offset, len); |
| 796 |
aurb[i].urb.iso_frame_desc[j].length = len; |
| 797 |
offset += len; |
| 798 |
set_iso_buffer_used(s, p->pid, p->ep->nr, offset); |
| 799 |
|
| 800 |
/* Start the stream once we have buffered enough data */
|
| 801 |
if (!is_iso_started(s, p->pid, p->ep->nr) && i == 1 && j == 8) { |
| 802 |
set_iso_started(s, p->pid, p->ep->nr); |
| 803 |
} |
| 804 |
} |
| 805 |
aurb[i].iso_frame_idx++; |
| 806 |
if (aurb[i].iso_frame_idx == ISO_FRAME_DESC_PER_URB) {
|
| 807 |
i = (i + 1) % s->iso_urb_count;
|
| 808 |
set_iso_urb_idx(s, p->pid, p->ep->nr, i); |
| 809 |
} |
| 810 |
} else {
|
| 811 |
if (in) {
|
| 812 |
set_iso_started(s, p->pid, p->ep->nr); |
| 813 |
} else {
|
| 814 |
DPRINTF("hubs: iso out error no free buffer, dropping packet\n");
|
| 815 |
} |
| 816 |
} |
| 817 |
|
| 818 |
if (is_iso_started(s, p->pid, p->ep->nr)) {
|
| 819 |
/* (Re)-submit all fully consumed / filled urbs */
|
| 820 |
for (i = 0; i < s->iso_urb_count; i++) { |
| 821 |
if (aurb[i].iso_frame_idx == ISO_FRAME_DESC_PER_URB) {
|
| 822 |
ret = ioctl(s->fd, USBDEVFS_SUBMITURB, &aurb[i]); |
| 823 |
if (ret < 0) { |
| 824 |
perror("USBDEVFS_SUBMITURB");
|
| 825 |
if (!in || len == 0) { |
| 826 |
switch(errno) {
|
| 827 |
case ETIMEDOUT:
|
| 828 |
len = USB_RET_NAK; |
| 829 |
break;
|
| 830 |
case EPIPE:
|
| 831 |
default:
|
| 832 |
len = USB_RET_STALL; |
| 833 |
} |
| 834 |
} |
| 835 |
break;
|
| 836 |
} |
| 837 |
aurb[i].iso_frame_idx = -1;
|
| 838 |
change_iso_inflight(s, p->pid, p->ep->nr, 1);
|
| 839 |
} |
| 840 |
} |
| 841 |
} |
| 842 |
|
| 843 |
return len;
|
| 844 |
} |
| 845 |
|
| 846 |
static int usb_host_handle_data(USBDevice *dev, USBPacket *p) |
| 847 |
{
|
| 848 |
USBHostDevice *s = DO_UPCAST(USBHostDevice, dev, dev); |
| 849 |
struct usbdevfs_urb *urb;
|
| 850 |
AsyncURB *aurb; |
| 851 |
int ret, rem, prem, v;
|
| 852 |
uint8_t *pbuf; |
| 853 |
uint8_t ep; |
| 854 |
|
| 855 |
trace_usb_host_req_data(s->bus_num, s->addr, p, |
| 856 |
p->pid == USB_TOKEN_IN, |
| 857 |
p->ep->nr, p->iov.size); |
| 858 |
|
| 859 |
if (!is_valid(s, p->pid, p->ep->nr)) {
|
| 860 |
trace_usb_host_req_complete(s->bus_num, s->addr, p, USB_RET_NAK); |
| 861 |
return USB_RET_NAK;
|
| 862 |
} |
| 863 |
|
| 864 |
if (p->pid == USB_TOKEN_IN) {
|
| 865 |
ep = p->ep->nr | 0x80;
|
| 866 |
} else {
|
| 867 |
ep = p->ep->nr; |
| 868 |
} |
| 869 |
|
| 870 |
if (is_halted(s, p->pid, p->ep->nr)) {
|
| 871 |
unsigned int arg = ep; |
| 872 |
ret = ioctl(s->fd, USBDEVFS_CLEAR_HALT, &arg); |
| 873 |
if (ret < 0) { |
| 874 |
perror("USBDEVFS_CLEAR_HALT");
|
| 875 |
trace_usb_host_req_complete(s->bus_num, s->addr, p, USB_RET_NAK); |
| 876 |
return USB_RET_NAK;
|
| 877 |
} |
| 878 |
clear_halt(s, p->pid, p->ep->nr); |
| 879 |
} |
| 880 |
|
| 881 |
if (is_isoc(s, p->pid, p->ep->nr)) {
|
| 882 |
return usb_host_handle_iso_data(s, p, p->pid == USB_TOKEN_IN);
|
| 883 |
} |
| 884 |
|
| 885 |
v = 0;
|
| 886 |
prem = p->iov.iov[v].iov_len; |
| 887 |
pbuf = p->iov.iov[v].iov_base; |
| 888 |
rem = p->iov.size; |
| 889 |
while (rem) {
|
| 890 |
if (prem == 0) { |
| 891 |
v++; |
| 892 |
assert(v < p->iov.niov); |
| 893 |
prem = p->iov.iov[v].iov_len; |
| 894 |
pbuf = p->iov.iov[v].iov_base; |
| 895 |
assert(prem <= rem); |
| 896 |
} |
| 897 |
aurb = async_alloc(s); |
| 898 |
aurb->packet = p; |
| 899 |
|
| 900 |
urb = &aurb->urb; |
| 901 |
urb->endpoint = ep; |
| 902 |
urb->type = usb_host_usbfs_type(s, p); |
| 903 |
urb->usercontext = s; |
| 904 |
urb->buffer = pbuf; |
| 905 |
urb->buffer_length = prem; |
| 906 |
|
| 907 |
if (urb->buffer_length > MAX_USBFS_BUFFER_SIZE) {
|
| 908 |
urb->buffer_length = MAX_USBFS_BUFFER_SIZE; |
| 909 |
} |
| 910 |
pbuf += urb->buffer_length; |
| 911 |
prem -= urb->buffer_length; |
| 912 |
rem -= urb->buffer_length; |
| 913 |
if (rem) {
|
| 914 |
aurb->more = 1;
|
| 915 |
} |
| 916 |
|
| 917 |
trace_usb_host_urb_submit(s->bus_num, s->addr, aurb, |
| 918 |
urb->buffer_length, aurb->more); |
| 919 |
ret = ioctl(s->fd, USBDEVFS_SUBMITURB, urb); |
| 920 |
|
| 921 |
DPRINTF("husb: data submit: ep 0x%x, len %u, more %d, packet %p, aurb %p\n",
|
| 922 |
urb->endpoint, urb->buffer_length, aurb->more, p, aurb); |
| 923 |
|
| 924 |
if (ret < 0) { |
| 925 |
perror("USBDEVFS_SUBMITURB");
|
| 926 |
async_free(aurb); |
| 927 |
|
| 928 |
switch(errno) {
|
| 929 |
case ETIMEDOUT:
|
| 930 |
trace_usb_host_req_complete(s->bus_num, s->addr, p, |
| 931 |
USB_RET_NAK); |
| 932 |
return USB_RET_NAK;
|
| 933 |
case EPIPE:
|
| 934 |
default:
|
| 935 |
trace_usb_host_req_complete(s->bus_num, s->addr, p, |
| 936 |
USB_RET_STALL); |
| 937 |
return USB_RET_STALL;
|
| 938 |
} |
| 939 |
} |
| 940 |
} |
| 941 |
|
| 942 |
return USB_RET_ASYNC;
|
| 943 |
} |
| 944 |
|
| 945 |
static int ctrl_error(void) |
| 946 |
{
|
| 947 |
if (errno == ETIMEDOUT) {
|
| 948 |
return USB_RET_NAK;
|
| 949 |
} else {
|
| 950 |
return USB_RET_STALL;
|
| 951 |
} |
| 952 |
} |
| 953 |
|
| 954 |
static int usb_host_set_address(USBHostDevice *s, int addr) |
| 955 |
{
|
| 956 |
trace_usb_host_set_address(s->bus_num, s->addr, addr); |
| 957 |
s->dev.addr = addr; |
| 958 |
return 0; |
| 959 |
} |
| 960 |
|
| 961 |
static int usb_host_set_config(USBHostDevice *s, int config) |
| 962 |
{
|
| 963 |
int ret, first = 1; |
| 964 |
|
| 965 |
trace_usb_host_set_config(s->bus_num, s->addr, config); |
| 966 |
|
| 967 |
usb_host_release_interfaces(s); |
| 968 |
|
| 969 |
again:
|
| 970 |
ret = ioctl(s->fd, USBDEVFS_SETCONFIGURATION, &config); |
| 971 |
|
| 972 |
DPRINTF("husb: ctrl set config %d ret %d errno %d\n", config, ret, errno);
|
| 973 |
|
| 974 |
if (ret < 0 && errno == EBUSY && first) { |
| 975 |
/* happens if usb device is in use by host drivers */
|
| 976 |
int count = usb_linux_get_num_interfaces(s);
|
| 977 |
if (count > 0) { |
| 978 |
DPRINTF("husb: busy -> disconnecting %d interfaces\n", count);
|
| 979 |
usb_host_disconnect_ifaces(s, count); |
| 980 |
first = 0;
|
| 981 |
goto again;
|
| 982 |
} |
| 983 |
} |
| 984 |
|
| 985 |
if (ret < 0) { |
| 986 |
return ctrl_error();
|
| 987 |
} |
| 988 |
usb_host_claim_interfaces(s, config); |
| 989 |
usb_linux_update_endp_table(s); |
| 990 |
return 0; |
| 991 |
} |
| 992 |
|
| 993 |
static int usb_host_set_interface(USBHostDevice *s, int iface, int alt) |
| 994 |
{
|
| 995 |
struct usbdevfs_setinterface si;
|
| 996 |
int i, ret;
|
| 997 |
|
| 998 |
trace_usb_host_set_interface(s->bus_num, s->addr, iface, alt); |
| 999 |
|
| 1000 |
for (i = 1; i <= USB_MAX_ENDPOINTS; i++) { |
| 1001 |
if (is_isoc(s, USB_TOKEN_IN, i)) {
|
| 1002 |
usb_host_stop_n_free_iso(s, USB_TOKEN_IN, i); |
| 1003 |
} |
| 1004 |
if (is_isoc(s, USB_TOKEN_OUT, i)) {
|
| 1005 |
usb_host_stop_n_free_iso(s, USB_TOKEN_OUT, i); |
| 1006 |
} |
| 1007 |
} |
| 1008 |
|
| 1009 |
if (iface >= USB_MAX_INTERFACES) {
|
| 1010 |
return USB_RET_STALL;
|
| 1011 |
} |
| 1012 |
|
| 1013 |
si.interface = iface; |
| 1014 |
si.altsetting = alt; |
| 1015 |
ret = ioctl(s->fd, USBDEVFS_SETINTERFACE, &si); |
| 1016 |
|
| 1017 |
DPRINTF("husb: ctrl set iface %d altset %d ret %d errno %d\n",
|
| 1018 |
iface, alt, ret, errno); |
| 1019 |
|
| 1020 |
if (ret < 0) { |
| 1021 |
return ctrl_error();
|
| 1022 |
} |
| 1023 |
|
| 1024 |
s->dev.altsetting[iface] = alt; |
| 1025 |
usb_linux_update_endp_table(s); |
| 1026 |
return 0; |
| 1027 |
} |
| 1028 |
|
| 1029 |
static int usb_host_handle_control(USBDevice *dev, USBPacket *p, |
| 1030 |
int request, int value, int index, int length, uint8_t *data) |
| 1031 |
{
|
| 1032 |
USBHostDevice *s = DO_UPCAST(USBHostDevice, dev, dev); |
| 1033 |
struct usbdevfs_urb *urb;
|
| 1034 |
AsyncURB *aurb; |
| 1035 |
int ret;
|
| 1036 |
|
| 1037 |
/*
|
| 1038 |
* Process certain standard device requests.
|
| 1039 |
* These are infrequent and are processed synchronously.
|
| 1040 |
*/
|
| 1041 |
|
| 1042 |
/* Note request is (bRequestType << 8) | bRequest */
|
| 1043 |
trace_usb_host_req_control(s->bus_num, s->addr, p, request, value, index); |
| 1044 |
|
| 1045 |
switch (request) {
|
| 1046 |
case DeviceOutRequest | USB_REQ_SET_ADDRESS:
|
| 1047 |
ret = usb_host_set_address(s, value); |
| 1048 |
trace_usb_host_req_emulated(s->bus_num, s->addr, p, ret); |
| 1049 |
return ret;
|
| 1050 |
|
| 1051 |
case DeviceOutRequest | USB_REQ_SET_CONFIGURATION:
|
| 1052 |
ret = usb_host_set_config(s, value & 0xff);
|
| 1053 |
trace_usb_host_req_emulated(s->bus_num, s->addr, p, ret); |
| 1054 |
return ret;
|
| 1055 |
|
| 1056 |
case InterfaceOutRequest | USB_REQ_SET_INTERFACE:
|
| 1057 |
ret = usb_host_set_interface(s, index, value); |
| 1058 |
trace_usb_host_req_emulated(s->bus_num, s->addr, p, ret); |
| 1059 |
return ret;
|
| 1060 |
} |
| 1061 |
|
| 1062 |
/* The rest are asynchronous */
|
| 1063 |
|
| 1064 |
if (length > sizeof(dev->data_buf)) { |
| 1065 |
fprintf(stderr, "husb: ctrl buffer too small (%d > %zu)\n",
|
| 1066 |
length, sizeof(dev->data_buf));
|
| 1067 |
return USB_RET_STALL;
|
| 1068 |
} |
| 1069 |
|
| 1070 |
aurb = async_alloc(s); |
| 1071 |
aurb->packet = p; |
| 1072 |
|
| 1073 |
/*
|
| 1074 |
* Setup ctrl transfer.
|
| 1075 |
*
|
| 1076 |
* s->ctrl is laid out such that data buffer immediately follows
|
| 1077 |
* 'req' struct which is exactly what usbdevfs expects.
|
| 1078 |
*/
|
| 1079 |
urb = &aurb->urb; |
| 1080 |
|
| 1081 |
urb->type = USBDEVFS_URB_TYPE_CONTROL; |
| 1082 |
urb->endpoint = p->ep->nr; |
| 1083 |
|
| 1084 |
urb->buffer = &dev->setup_buf; |
| 1085 |
urb->buffer_length = length + 8;
|
| 1086 |
|
| 1087 |
urb->usercontext = s; |
| 1088 |
|
| 1089 |
trace_usb_host_urb_submit(s->bus_num, s->addr, aurb, |
| 1090 |
urb->buffer_length, aurb->more); |
| 1091 |
ret = ioctl(s->fd, USBDEVFS_SUBMITURB, urb); |
| 1092 |
|
| 1093 |
DPRINTF("husb: submit ctrl. len %u aurb %p\n", urb->buffer_length, aurb);
|
| 1094 |
|
| 1095 |
if (ret < 0) { |
| 1096 |
DPRINTF("husb: submit failed. errno %d\n", errno);
|
| 1097 |
async_free(aurb); |
| 1098 |
|
| 1099 |
switch(errno) {
|
| 1100 |
case ETIMEDOUT:
|
| 1101 |
return USB_RET_NAK;
|
| 1102 |
case EPIPE:
|
| 1103 |
default:
|
| 1104 |
return USB_RET_STALL;
|
| 1105 |
} |
| 1106 |
} |
| 1107 |
|
| 1108 |
return USB_RET_ASYNC;
|
| 1109 |
} |
| 1110 |
|
| 1111 |
static uint8_t usb_linux_get_alt_setting(USBHostDevice *s,
|
| 1112 |
uint8_t configuration, uint8_t interface) |
| 1113 |
{
|
| 1114 |
char device_name[64], line[1024]; |
| 1115 |
int alt_setting;
|
| 1116 |
|
| 1117 |
sprintf(device_name, "%d-%s:%d.%d", s->bus_num, s->port,
|
| 1118 |
(int)configuration, (int)interface); |
| 1119 |
|
| 1120 |
if (!usb_host_read_file(line, sizeof(line), "bAlternateSetting", |
| 1121 |
device_name)) {
|
| 1122 |
/* Assume alt 0 on error */
|
| 1123 |
return 0; |
| 1124 |
} |
| 1125 |
if (sscanf(line, "%d", &alt_setting) != 1) { |
| 1126 |
/* Assume alt 0 on error */
|
| 1127 |
return 0; |
| 1128 |
} |
| 1129 |
return alt_setting;
|
| 1130 |
} |
| 1131 |
|
| 1132 |
/* returns 1 on problem encountered or 0 for success */
|
| 1133 |
static int usb_linux_update_endp_table(USBHostDevice *s) |
| 1134 |
{
|
| 1135 |
uint8_t *descriptors; |
| 1136 |
uint8_t devep, type, alt_interface; |
| 1137 |
uint16_t raw; |
| 1138 |
int interface, length, i, ep, pid;
|
| 1139 |
struct endp_data *epd;
|
| 1140 |
|
| 1141 |
usb_ep_init(&s->dev); |
| 1142 |
|
| 1143 |
if (s->dev.configuration == 0) { |
| 1144 |
/* not configured yet -- leave all endpoints disabled */
|
| 1145 |
return 0; |
| 1146 |
} |
| 1147 |
|
| 1148 |
/* get the desired configuration, interface, and endpoint descriptors
|
| 1149 |
* from device description */
|
| 1150 |
descriptors = &s->descr[18];
|
| 1151 |
length = s->descr_len - 18;
|
| 1152 |
i = 0;
|
| 1153 |
|
| 1154 |
while (i < length) {
|
| 1155 |
if (descriptors[i + 1] != USB_DT_CONFIG) { |
| 1156 |
fprintf(stderr, "invalid descriptor data\n");
|
| 1157 |
return 1; |
| 1158 |
} else if (descriptors[i + 5] != s->dev.configuration) { |
| 1159 |
DPRINTF("not requested configuration %d\n", s->dev.configuration);
|
| 1160 |
i += (descriptors[i + 3] << 8) + descriptors[i + 2]; |
| 1161 |
continue;
|
| 1162 |
} |
| 1163 |
i += descriptors[i]; |
| 1164 |
|
| 1165 |
if (descriptors[i + 1] != USB_DT_INTERFACE || |
| 1166 |
(descriptors[i + 1] == USB_DT_INTERFACE &&
|
| 1167 |
descriptors[i + 4] == 0)) { |
| 1168 |
i += descriptors[i]; |
| 1169 |
continue;
|
| 1170 |
} |
| 1171 |
|
| 1172 |
interface = descriptors[i + 2];
|
| 1173 |
alt_interface = usb_linux_get_alt_setting(s, s->dev.configuration, |
| 1174 |
interface); |
| 1175 |
|
| 1176 |
/* the current interface descriptor is the active interface
|
| 1177 |
* and has endpoints */
|
| 1178 |
if (descriptors[i + 3] != alt_interface) { |
| 1179 |
i += descriptors[i]; |
| 1180 |
continue;
|
| 1181 |
} |
| 1182 |
|
| 1183 |
/* advance to the endpoints */
|
| 1184 |
while (i < length && descriptors[i +1] != USB_DT_ENDPOINT) { |
| 1185 |
i += descriptors[i]; |
| 1186 |
} |
| 1187 |
|
| 1188 |
if (i >= length)
|
| 1189 |
break;
|
| 1190 |
|
| 1191 |
while (i < length) {
|
| 1192 |
if (descriptors[i + 1] != USB_DT_ENDPOINT) { |
| 1193 |
break;
|
| 1194 |
} |
| 1195 |
|
| 1196 |
devep = descriptors[i + 2];
|
| 1197 |
pid = (devep & USB_DIR_IN) ? USB_TOKEN_IN : USB_TOKEN_OUT; |
| 1198 |
ep = devep & 0xf;
|
| 1199 |
if (ep == 0) { |
| 1200 |
fprintf(stderr, "usb-linux: invalid ep descriptor, ep == 0\n");
|
| 1201 |
return 1; |
| 1202 |
} |
| 1203 |
|
| 1204 |
type = descriptors[i + 3] & 0x3; |
| 1205 |
raw = descriptors[i + 4] + (descriptors[i + 5] << 8); |
| 1206 |
usb_ep_set_max_packet_size(&s->dev, pid, ep, raw); |
| 1207 |
assert(usb_ep_get_type(&s->dev, pid, ep) == |
| 1208 |
USB_ENDPOINT_XFER_INVALID); |
| 1209 |
usb_ep_set_type(&s->dev, pid, ep, type); |
| 1210 |
usb_ep_set_ifnum(&s->dev, pid, ep, interface); |
| 1211 |
if ((s->options & (1 << USB_HOST_OPT_PIPELINE)) && |
| 1212 |
(type == USB_ENDPOINT_XFER_BULK)) {
|
| 1213 |
usb_ep_set_pipeline(&s->dev, pid, ep, true);
|
| 1214 |
} |
| 1215 |
|
| 1216 |
epd = get_endp(s, pid, ep); |
| 1217 |
epd->halted = 0;
|
| 1218 |
|
| 1219 |
i += descriptors[i]; |
| 1220 |
} |
| 1221 |
} |
| 1222 |
#ifdef DEBUG
|
| 1223 |
usb_ep_dump(&s->dev); |
| 1224 |
#endif
|
| 1225 |
return 0; |
| 1226 |
} |
| 1227 |
|
| 1228 |
/*
|
| 1229 |
* Check if we can safely redirect a usb2 device to a usb1 virtual controller,
|
| 1230 |
* this function assumes this is safe, if:
|
| 1231 |
* 1) There are no isoc endpoints
|
| 1232 |
* 2) There are no interrupt endpoints with a max_packet_size > 64
|
| 1233 |
* Note bulk endpoints with a max_packet_size > 64 in theory also are not
|
| 1234 |
* usb1 compatible, but in practice this seems to work fine.
|
| 1235 |
*/
|
| 1236 |
static int usb_linux_full_speed_compat(USBHostDevice *dev) |
| 1237 |
{
|
| 1238 |
int i, packet_size;
|
| 1239 |
|
| 1240 |
/*
|
| 1241 |
* usb_linux_update_endp_table only registers info about ep in the current
|
| 1242 |
* interface altsettings, so we need to parse the descriptors again.
|
| 1243 |
*/
|
| 1244 |
for (i = 0; (i + 5) < dev->descr_len; i += dev->descr[i]) { |
| 1245 |
if (dev->descr[i + 1] == USB_DT_ENDPOINT) { |
| 1246 |
switch (dev->descr[i + 3] & 0x3) { |
| 1247 |
case 0x00: /* CONTROL */ |
| 1248 |
break;
|
| 1249 |
case 0x01: /* ISO */ |
| 1250 |
return 0; |
| 1251 |
case 0x02: /* BULK */ |
| 1252 |
break;
|
| 1253 |
case 0x03: /* INTERRUPT */ |
| 1254 |
packet_size = dev->descr[i + 4] + (dev->descr[i + 5] << 8); |
| 1255 |
if (packet_size > 64) |
| 1256 |
return 0; |
| 1257 |
break;
|
| 1258 |
} |
| 1259 |
} |
| 1260 |
} |
| 1261 |
return 1; |
| 1262 |
} |
| 1263 |
|
| 1264 |
static int usb_host_open(USBHostDevice *dev, int bus_num, |
| 1265 |
int addr, const char *port, |
| 1266 |
const char *prod_name, int speed) |
| 1267 |
{
|
| 1268 |
int fd = -1, ret; |
| 1269 |
|
| 1270 |
trace_usb_host_open_started(bus_num, addr); |
| 1271 |
|
| 1272 |
if (dev->fd != -1) { |
| 1273 |
goto fail;
|
| 1274 |
} |
| 1275 |
|
| 1276 |
fd = usb_host_open_device(bus_num, addr); |
| 1277 |
if (fd < 0) { |
| 1278 |
goto fail;
|
| 1279 |
} |
| 1280 |
DPRINTF("husb: opened %s\n", buf);
|
| 1281 |
|
| 1282 |
dev->bus_num = bus_num; |
| 1283 |
dev->addr = addr; |
| 1284 |
strcpy(dev->port, port); |
| 1285 |
dev->fd = fd; |
| 1286 |
|
| 1287 |
/* read the device description */
|
| 1288 |
dev->descr_len = read(fd, dev->descr, sizeof(dev->descr));
|
| 1289 |
if (dev->descr_len <= 0) { |
| 1290 |
perror("husb: reading device data failed");
|
| 1291 |
goto fail;
|
| 1292 |
} |
| 1293 |
|
| 1294 |
#ifdef DEBUG
|
| 1295 |
{
|
| 1296 |
int x;
|
| 1297 |
printf("=== begin dumping device descriptor data ===\n");
|
| 1298 |
for (x = 0; x < dev->descr_len; x++) { |
| 1299 |
printf("%02x ", dev->descr[x]);
|
| 1300 |
} |
| 1301 |
printf("\n=== end dumping device descriptor data ===\n");
|
| 1302 |
} |
| 1303 |
#endif
|
| 1304 |
|
| 1305 |
|
| 1306 |
/* start unconfigured -- we'll wait for the guest to set a configuration */
|
| 1307 |
if (!usb_host_claim_interfaces(dev, 0)) { |
| 1308 |
goto fail;
|
| 1309 |
} |
| 1310 |
|
| 1311 |
ret = usb_linux_update_endp_table(dev); |
| 1312 |
if (ret) {
|
| 1313 |
goto fail;
|
| 1314 |
} |
| 1315 |
|
| 1316 |
if (speed == -1) { |
| 1317 |
struct usbdevfs_connectinfo ci;
|
| 1318 |
|
| 1319 |
ret = ioctl(fd, USBDEVFS_CONNECTINFO, &ci); |
| 1320 |
if (ret < 0) { |
| 1321 |
perror("usb_host_device_open: USBDEVFS_CONNECTINFO");
|
| 1322 |
goto fail;
|
| 1323 |
} |
| 1324 |
|
| 1325 |
if (ci.slow) {
|
| 1326 |
speed = USB_SPEED_LOW; |
| 1327 |
} else {
|
| 1328 |
speed = USB_SPEED_HIGH; |
| 1329 |
} |
| 1330 |
} |
| 1331 |
dev->dev.speed = speed; |
| 1332 |
dev->dev.speedmask = (1 << speed);
|
| 1333 |
if (dev->dev.speed == USB_SPEED_HIGH && usb_linux_full_speed_compat(dev)) {
|
| 1334 |
dev->dev.speedmask |= USB_SPEED_MASK_FULL; |
| 1335 |
} |
| 1336 |
|
| 1337 |
trace_usb_host_open_success(bus_num, addr); |
| 1338 |
|
| 1339 |
if (!prod_name || prod_name[0] == '\0') { |
| 1340 |
snprintf(dev->dev.product_desc, sizeof(dev->dev.product_desc),
|
| 1341 |
"host:%d.%d", bus_num, addr);
|
| 1342 |
} else {
|
| 1343 |
pstrcpy(dev->dev.product_desc, sizeof(dev->dev.product_desc),
|
| 1344 |
prod_name); |
| 1345 |
} |
| 1346 |
|
| 1347 |
ret = usb_device_attach(&dev->dev); |
| 1348 |
if (ret) {
|
| 1349 |
goto fail;
|
| 1350 |
} |
| 1351 |
|
| 1352 |
/* USB devio uses 'write' flag to check for async completions */
|
| 1353 |
qemu_set_fd_handler(dev->fd, NULL, async_complete, dev);
|
| 1354 |
|
| 1355 |
return 0; |
| 1356 |
|
| 1357 |
fail:
|
| 1358 |
trace_usb_host_open_failure(bus_num, addr); |
| 1359 |
if (dev->fd != -1) { |
| 1360 |
close(dev->fd); |
| 1361 |
dev->fd = -1;
|
| 1362 |
} |
| 1363 |
return -1; |
| 1364 |
} |
| 1365 |
|
| 1366 |
static int usb_host_close(USBHostDevice *dev) |
| 1367 |
{
|
| 1368 |
int i;
|
| 1369 |
|
| 1370 |
if (dev->fd == -1) { |
| 1371 |
return -1; |
| 1372 |
} |
| 1373 |
|
| 1374 |
trace_usb_host_close(dev->bus_num, dev->addr); |
| 1375 |
|
| 1376 |
qemu_set_fd_handler(dev->fd, NULL, NULL, NULL); |
| 1377 |
dev->closing = 1;
|
| 1378 |
for (i = 1; i <= USB_MAX_ENDPOINTS; i++) { |
| 1379 |
if (is_isoc(dev, USB_TOKEN_IN, i)) {
|
| 1380 |
usb_host_stop_n_free_iso(dev, USB_TOKEN_IN, i); |
| 1381 |
} |
| 1382 |
if (is_isoc(dev, USB_TOKEN_OUT, i)) {
|
| 1383 |
usb_host_stop_n_free_iso(dev, USB_TOKEN_OUT, i); |
| 1384 |
} |
| 1385 |
} |
| 1386 |
async_complete(dev); |
| 1387 |
dev->closing = 0;
|
| 1388 |
if (dev->dev.attached) {
|
| 1389 |
usb_device_detach(&dev->dev); |
| 1390 |
} |
| 1391 |
usb_host_do_reset(dev); |
| 1392 |
close(dev->fd); |
| 1393 |
dev->fd = -1;
|
| 1394 |
return 0; |
| 1395 |
} |
| 1396 |
|
| 1397 |
static void usb_host_exit_notifier(struct Notifier *n, void *data) |
| 1398 |
{
|
| 1399 |
USBHostDevice *s = container_of(n, USBHostDevice, exit); |
| 1400 |
|
| 1401 |
usb_host_release_port(s); |
| 1402 |
if (s->fd != -1) { |
| 1403 |
usb_host_do_reset(s);; |
| 1404 |
} |
| 1405 |
} |
| 1406 |
|
| 1407 |
static int usb_host_initfn(USBDevice *dev) |
| 1408 |
{
|
| 1409 |
USBHostDevice *s = DO_UPCAST(USBHostDevice, dev, dev); |
| 1410 |
|
| 1411 |
dev->auto_attach = 0;
|
| 1412 |
s->fd = -1;
|
| 1413 |
s->hub_fd = -1;
|
| 1414 |
|
| 1415 |
QTAILQ_INSERT_TAIL(&hostdevs, s, next); |
| 1416 |
s->exit.notify = usb_host_exit_notifier; |
| 1417 |
qemu_add_exit_notifier(&s->exit); |
| 1418 |
usb_host_auto_check(NULL);
|
| 1419 |
|
| 1420 |
if (s->match.bus_num != 0 && s->match.port != NULL) { |
| 1421 |
usb_host_claim_port(s); |
| 1422 |
} |
| 1423 |
add_boot_device_path(s->bootindex, &dev->qdev, NULL);
|
| 1424 |
return 0; |
| 1425 |
} |
| 1426 |
|
| 1427 |
static const VMStateDescription vmstate_usb_host = { |
| 1428 |
.name = "usb-host",
|
| 1429 |
.unmigratable = 1,
|
| 1430 |
}; |
| 1431 |
|
| 1432 |
static Property usb_host_dev_properties[] = {
|
| 1433 |
DEFINE_PROP_UINT32("hostbus", USBHostDevice, match.bus_num, 0), |
| 1434 |
DEFINE_PROP_UINT32("hostaddr", USBHostDevice, match.addr, 0), |
| 1435 |
DEFINE_PROP_STRING("hostport", USBHostDevice, match.port),
|
| 1436 |
DEFINE_PROP_HEX32("vendorid", USBHostDevice, match.vendor_id, 0), |
| 1437 |
DEFINE_PROP_HEX32("productid", USBHostDevice, match.product_id, 0), |
| 1438 |
DEFINE_PROP_UINT32("isobufs", USBHostDevice, iso_urb_count, 4), |
| 1439 |
DEFINE_PROP_INT32("bootindex", USBHostDevice, bootindex, -1), |
| 1440 |
DEFINE_PROP_BIT("pipeline", USBHostDevice, options,
|
| 1441 |
USB_HOST_OPT_PIPELINE, true),
|
| 1442 |
DEFINE_PROP_END_OF_LIST(), |
| 1443 |
}; |
| 1444 |
|
| 1445 |
static void usb_host_class_initfn(ObjectClass *klass, void *data) |
| 1446 |
{
|
| 1447 |
DeviceClass *dc = DEVICE_CLASS(klass); |
| 1448 |
USBDeviceClass *uc = USB_DEVICE_CLASS(klass); |
| 1449 |
|
| 1450 |
uc->init = usb_host_initfn; |
| 1451 |
uc->product_desc = "USB Host Device";
|
| 1452 |
uc->cancel_packet = usb_host_async_cancel; |
| 1453 |
uc->handle_data = usb_host_handle_data; |
| 1454 |
uc->handle_control = usb_host_handle_control; |
| 1455 |
uc->handle_reset = usb_host_handle_reset; |
| 1456 |
uc->handle_destroy = usb_host_handle_destroy; |
| 1457 |
dc->vmsd = &vmstate_usb_host; |
| 1458 |
dc->props = usb_host_dev_properties; |
| 1459 |
} |
| 1460 |
|
| 1461 |
static TypeInfo usb_host_dev_info = {
|
| 1462 |
.name = "usb-host",
|
| 1463 |
.parent = TYPE_USB_DEVICE, |
| 1464 |
.instance_size = sizeof(USBHostDevice),
|
| 1465 |
.class_init = usb_host_class_initfn, |
| 1466 |
}; |
| 1467 |
|
| 1468 |
static void usb_host_register_types(void) |
| 1469 |
{
|
| 1470 |
type_register_static(&usb_host_dev_info); |
| 1471 |
usb_legacy_register("usb-host", "host", usb_host_device_open); |
| 1472 |
} |
| 1473 |
|
| 1474 |
type_init(usb_host_register_types) |
| 1475 |
|
| 1476 |
USBDevice *usb_host_device_open(USBBus *bus, const char *devname) |
| 1477 |
{
|
| 1478 |
struct USBAutoFilter filter;
|
| 1479 |
USBDevice *dev; |
| 1480 |
char *p;
|
| 1481 |
|
| 1482 |
dev = usb_create(bus, "usb-host");
|
| 1483 |
|
| 1484 |
if (strstr(devname, "auto:")) { |
| 1485 |
if (parse_filter(devname, &filter) < 0) { |
| 1486 |
goto fail;
|
| 1487 |
} |
| 1488 |
} else {
|
| 1489 |
if ((p = strchr(devname, '.'))) { |
| 1490 |
filter.bus_num = strtoul(devname, NULL, 0); |
| 1491 |
filter.addr = strtoul(p + 1, NULL, 0); |
| 1492 |
filter.vendor_id = 0;
|
| 1493 |
filter.product_id = 0;
|
| 1494 |
} else if ((p = strchr(devname, ':'))) { |
| 1495 |
filter.bus_num = 0;
|
| 1496 |
filter.addr = 0;
|
| 1497 |
filter.vendor_id = strtoul(devname, NULL, 16); |
| 1498 |
filter.product_id = strtoul(p + 1, NULL, 16); |
| 1499 |
} else {
|
| 1500 |
goto fail;
|
| 1501 |
} |
| 1502 |
} |
| 1503 |
|
| 1504 |
qdev_prop_set_uint32(&dev->qdev, "hostbus", filter.bus_num);
|
| 1505 |
qdev_prop_set_uint32(&dev->qdev, "hostaddr", filter.addr);
|
| 1506 |
qdev_prop_set_uint32(&dev->qdev, "vendorid", filter.vendor_id);
|
| 1507 |
qdev_prop_set_uint32(&dev->qdev, "productid", filter.product_id);
|
| 1508 |
qdev_init_nofail(&dev->qdev); |
| 1509 |
return dev;
|
| 1510 |
|
| 1511 |
fail:
|
| 1512 |
qdev_free(&dev->qdev); |
| 1513 |
return NULL; |
| 1514 |
} |
| 1515 |
|
| 1516 |
int usb_host_device_close(const char *devname) |
| 1517 |
{
|
| 1518 |
#if 0
|
| 1519 |
char product_name[PRODUCT_NAME_SZ];
|
| 1520 |
int bus_num, addr;
|
| 1521 |
USBHostDevice *s;
|
| 1522 |
|
| 1523 |
if (strstr(devname, "auto:")) {
|
| 1524 |
return usb_host_auto_del(devname);
|
| 1525 |
}
|
| 1526 |
if (usb_host_find_device(&bus_num, &addr, product_name,
|
| 1527 |
sizeof(product_name), devname) < 0) {
|
| 1528 |
return -1;
|
| 1529 |
}
|
| 1530 |
s = hostdev_find(bus_num, addr);
|
| 1531 |
if (s) {
|
| 1532 |
usb_device_delete_addr(s->bus_num, s->dev.addr);
|
| 1533 |
return 0;
|
| 1534 |
}
|
| 1535 |
#endif
|
| 1536 |
|
| 1537 |
return -1; |
| 1538 |
} |
| 1539 |
|
| 1540 |
/*
|
| 1541 |
* Read sys file-system device file
|
| 1542 |
*
|
| 1543 |
* @line address of buffer to put file contents in
|
| 1544 |
* @line_size size of line
|
| 1545 |
* @device_file path to device file (printf format string)
|
| 1546 |
* @device_name device being opened (inserted into device_file)
|
| 1547 |
*
|
| 1548 |
* @return 0 failed, 1 succeeded ('line' contains data)
|
| 1549 |
*/
|
| 1550 |
static int usb_host_read_file(char *line, size_t line_size, |
| 1551 |
const char *device_file, const char *device_name) |
| 1552 |
{
|
| 1553 |
FILE *f; |
| 1554 |
int ret = 0; |
| 1555 |
char filename[PATH_MAX];
|
| 1556 |
|
| 1557 |
snprintf(filename, PATH_MAX, "/sys/bus/usb/devices/%s/%s", device_name,
|
| 1558 |
device_file); |
| 1559 |
f = fopen(filename, "r");
|
| 1560 |
if (f) {
|
| 1561 |
ret = fgets(line, line_size, f) != NULL;
|
| 1562 |
fclose(f); |
| 1563 |
} |
| 1564 |
|
| 1565 |
return ret;
|
| 1566 |
} |
| 1567 |
|
| 1568 |
/*
|
| 1569 |
* Use /sys/bus/usb/devices/ directory to determine host's USB
|
| 1570 |
* devices.
|
| 1571 |
*
|
| 1572 |
* This code is based on Robert Schiele's original patches posted to
|
| 1573 |
* the Novell bug-tracker https://bugzilla.novell.com/show_bug.cgi?id=241950
|
| 1574 |
*/
|
| 1575 |
static int usb_host_scan(void *opaque, USBScanFunc *func) |
| 1576 |
{
|
| 1577 |
DIR *dir = NULL;
|
| 1578 |
char line[1024]; |
| 1579 |
int bus_num, addr, speed, class_id, product_id, vendor_id;
|
| 1580 |
int ret = 0; |
| 1581 |
char port[MAX_PORTLEN];
|
| 1582 |
char product_name[512]; |
| 1583 |
struct dirent *de;
|
| 1584 |
|
| 1585 |
dir = opendir("/sys/bus/usb/devices");
|
| 1586 |
if (!dir) {
|
| 1587 |
perror("husb: opendir /sys/bus/usb/devices");
|
| 1588 |
fprintf(stderr, "husb: please make sure sysfs is mounted at /sys\n");
|
| 1589 |
goto the_end;
|
| 1590 |
} |
| 1591 |
|
| 1592 |
while ((de = readdir(dir))) {
|
| 1593 |
if (de->d_name[0] != '.' && !strchr(de->d_name, ':')) { |
| 1594 |
if (sscanf(de->d_name, "%d-%7[0-9.]", &bus_num, port) < 2) { |
| 1595 |
continue;
|
| 1596 |
} |
| 1597 |
|
| 1598 |
if (!usb_host_read_file(line, sizeof(line), "devnum", de->d_name)) { |
| 1599 |
goto the_end;
|
| 1600 |
} |
| 1601 |
if (sscanf(line, "%d", &addr) != 1) { |
| 1602 |
goto the_end;
|
| 1603 |
} |
| 1604 |
if (!usb_host_read_file(line, sizeof(line), "bDeviceClass", |
| 1605 |
de->d_name)) {
|
| 1606 |
goto the_end;
|
| 1607 |
} |
| 1608 |
if (sscanf(line, "%x", &class_id) != 1) { |
| 1609 |
goto the_end;
|
| 1610 |
} |
| 1611 |
|
| 1612 |
if (!usb_host_read_file(line, sizeof(line), "idVendor", |
| 1613 |
de->d_name)) {
|
| 1614 |
goto the_end;
|
| 1615 |
} |
| 1616 |
if (sscanf(line, "%x", &vendor_id) != 1) { |
| 1617 |
goto the_end;
|
| 1618 |
} |
| 1619 |
if (!usb_host_read_file(line, sizeof(line), "idProduct", |
| 1620 |
de->d_name)) {
|
| 1621 |
goto the_end;
|
| 1622 |
} |
| 1623 |
if (sscanf(line, "%x", &product_id) != 1) { |
| 1624 |
goto the_end;
|
| 1625 |
} |
| 1626 |
if (!usb_host_read_file(line, sizeof(line), "product", |
| 1627 |
de->d_name)) {
|
| 1628 |
*product_name = 0;
|
| 1629 |
} else {
|
| 1630 |
if (strlen(line) > 0) { |
| 1631 |
line[strlen(line) - 1] = '\0'; |
| 1632 |
} |
| 1633 |
pstrcpy(product_name, sizeof(product_name), line);
|
| 1634 |
} |
| 1635 |
|
| 1636 |
if (!usb_host_read_file(line, sizeof(line), "speed", de->d_name)) { |
| 1637 |
goto the_end;
|
| 1638 |
} |
| 1639 |
if (!strcmp(line, "5000\n")) { |
| 1640 |
speed = USB_SPEED_SUPER; |
| 1641 |
} else if (!strcmp(line, "480\n")) { |
| 1642 |
speed = USB_SPEED_HIGH; |
| 1643 |
} else if (!strcmp(line, "1.5\n")) { |
| 1644 |
speed = USB_SPEED_LOW; |
| 1645 |
} else {
|
| 1646 |
speed = USB_SPEED_FULL; |
| 1647 |
} |
| 1648 |
|
| 1649 |
ret = func(opaque, bus_num, addr, port, class_id, vendor_id, |
| 1650 |
product_id, product_name, speed); |
| 1651 |
if (ret) {
|
| 1652 |
goto the_end;
|
| 1653 |
} |
| 1654 |
} |
| 1655 |
} |
| 1656 |
the_end:
|
| 1657 |
if (dir) {
|
| 1658 |
closedir(dir); |
| 1659 |
} |
| 1660 |
return ret;
|
| 1661 |
} |
| 1662 |
|
| 1663 |
static QEMUTimer *usb_auto_timer;
|
| 1664 |
|
| 1665 |
static int usb_host_auto_scan(void *opaque, int bus_num, |
| 1666 |
int addr, const char *port, |
| 1667 |
int class_id, int vendor_id, int product_id, |
| 1668 |
const char *product_name, int speed) |
| 1669 |
{
|
| 1670 |
struct USBAutoFilter *f;
|
| 1671 |
struct USBHostDevice *s;
|
| 1672 |
|
| 1673 |
/* Ignore hubs */
|
| 1674 |
if (class_id == 9) |
| 1675 |
return 0; |
| 1676 |
|
| 1677 |
QTAILQ_FOREACH(s, &hostdevs, next) {
|
| 1678 |
f = &s->match; |
| 1679 |
|
| 1680 |
if (f->bus_num > 0 && f->bus_num != bus_num) { |
| 1681 |
continue;
|
| 1682 |
} |
| 1683 |
if (f->addr > 0 && f->addr != addr) { |
| 1684 |
continue;
|
| 1685 |
} |
| 1686 |
if (f->port != NULL && (port == NULL || strcmp(f->port, port) != 0)) { |
| 1687 |
continue;
|
| 1688 |
} |
| 1689 |
|
| 1690 |
if (f->vendor_id > 0 && f->vendor_id != vendor_id) { |
| 1691 |
continue;
|
| 1692 |
} |
| 1693 |
|
| 1694 |
if (f->product_id > 0 && f->product_id != product_id) { |
| 1695 |
continue;
|
| 1696 |
} |
| 1697 |
/* We got a match */
|
| 1698 |
s->seen++; |
| 1699 |
if (s->errcount >= 3) { |
| 1700 |
return 0; |
| 1701 |
} |
| 1702 |
|
| 1703 |
/* Already attached ? */
|
| 1704 |
if (s->fd != -1) { |
| 1705 |
return 0; |
| 1706 |
} |
| 1707 |
DPRINTF("husb: auto open: bus_num %d addr %d\n", bus_num, addr);
|
| 1708 |
|
| 1709 |
if (usb_host_open(s, bus_num, addr, port, product_name, speed) < 0) { |
| 1710 |
s->errcount++; |
| 1711 |
} |
| 1712 |
break;
|
| 1713 |
} |
| 1714 |
|
| 1715 |
return 0; |
| 1716 |
} |
| 1717 |
|
| 1718 |
static void usb_host_auto_check(void *unused) |
| 1719 |
{
|
| 1720 |
struct USBHostDevice *s;
|
| 1721 |
int unconnected = 0; |
| 1722 |
|
| 1723 |
usb_host_scan(NULL, usb_host_auto_scan);
|
| 1724 |
|
| 1725 |
QTAILQ_FOREACH(s, &hostdevs, next) {
|
| 1726 |
if (s->fd == -1) { |
| 1727 |
unconnected++; |
| 1728 |
} |
| 1729 |
if (s->seen == 0) { |
| 1730 |
s->errcount = 0;
|
| 1731 |
} |
| 1732 |
s->seen = 0;
|
| 1733 |
} |
| 1734 |
|
| 1735 |
if (unconnected == 0) { |
| 1736 |
/* nothing to watch */
|
| 1737 |
if (usb_auto_timer) {
|
| 1738 |
qemu_del_timer(usb_auto_timer); |
| 1739 |
trace_usb_host_auto_scan_disabled(); |
| 1740 |
} |
| 1741 |
return;
|
| 1742 |
} |
| 1743 |
|
| 1744 |
if (!usb_auto_timer) {
|
| 1745 |
usb_auto_timer = qemu_new_timer_ms(rt_clock, usb_host_auto_check, NULL);
|
| 1746 |
if (!usb_auto_timer) {
|
| 1747 |
return;
|
| 1748 |
} |
| 1749 |
trace_usb_host_auto_scan_enabled(); |
| 1750 |
} |
| 1751 |
qemu_mod_timer(usb_auto_timer, qemu_get_clock_ms(rt_clock) + 2000);
|
| 1752 |
} |
| 1753 |
|
| 1754 |
/*
|
| 1755 |
* Autoconnect filter
|
| 1756 |
* Format:
|
| 1757 |
* auto:bus:dev[:vid:pid]
|
| 1758 |
* auto:bus.dev[:vid:pid]
|
| 1759 |
*
|
| 1760 |
* bus - bus number (dec, * means any)
|
| 1761 |
* dev - device number (dec, * means any)
|
| 1762 |
* vid - vendor id (hex, * means any)
|
| 1763 |
* pid - product id (hex, * means any)
|
| 1764 |
*
|
| 1765 |
* See 'lsusb' output.
|
| 1766 |
*/
|
| 1767 |
static int parse_filter(const char *spec, struct USBAutoFilter *f) |
| 1768 |
{
|
| 1769 |
enum { BUS, DEV, VID, PID, DONE };
|
| 1770 |
const char *p = spec; |
| 1771 |
int i;
|
| 1772 |
|
| 1773 |
f->bus_num = 0;
|
| 1774 |
f->addr = 0;
|
| 1775 |
f->vendor_id = 0;
|
| 1776 |
f->product_id = 0;
|
| 1777 |
|
| 1778 |
for (i = BUS; i < DONE; i++) {
|
| 1779 |
p = strpbrk(p, ":.");
|
| 1780 |
if (!p) {
|
| 1781 |
break;
|
| 1782 |
} |
| 1783 |
p++; |
| 1784 |
|
| 1785 |
if (*p == '*') { |
| 1786 |
continue;
|
| 1787 |
} |
| 1788 |
switch(i) {
|
| 1789 |
case BUS: f->bus_num = strtol(p, NULL, 10); break; |
| 1790 |
case DEV: f->addr = strtol(p, NULL, 10); break; |
| 1791 |
case VID: f->vendor_id = strtol(p, NULL, 16); break; |
| 1792 |
case PID: f->product_id = strtol(p, NULL, 16); break; |
| 1793 |
} |
| 1794 |
} |
| 1795 |
|
| 1796 |
if (i < DEV) {
|
| 1797 |
fprintf(stderr, "husb: invalid auto filter spec %s\n", spec);
|
| 1798 |
return -1; |
| 1799 |
} |
| 1800 |
|
| 1801 |
return 0; |
| 1802 |
} |
| 1803 |
|
| 1804 |
/**********************/
|
| 1805 |
/* USB host device info */
|
| 1806 |
|
| 1807 |
struct usb_class_info {
|
| 1808 |
int class;
|
| 1809 |
const char *class_name; |
| 1810 |
}; |
| 1811 |
|
| 1812 |
static const struct usb_class_info usb_class_info[] = { |
| 1813 |
{ USB_CLASS_AUDIO, "Audio"},
|
| 1814 |
{ USB_CLASS_COMM, "Communication"},
|
| 1815 |
{ USB_CLASS_HID, "HID"},
|
| 1816 |
{ USB_CLASS_HUB, "Hub" },
|
| 1817 |
{ USB_CLASS_PHYSICAL, "Physical" },
|
| 1818 |
{ USB_CLASS_PRINTER, "Printer" },
|
| 1819 |
{ USB_CLASS_MASS_STORAGE, "Storage" },
|
| 1820 |
{ USB_CLASS_CDC_DATA, "Data" },
|
| 1821 |
{ USB_CLASS_APP_SPEC, "Application Specific" },
|
| 1822 |
{ USB_CLASS_VENDOR_SPEC, "Vendor Specific" },
|
| 1823 |
{ USB_CLASS_STILL_IMAGE, "Still Image" },
|
| 1824 |
{ USB_CLASS_CSCID, "Smart Card" },
|
| 1825 |
{ USB_CLASS_CONTENT_SEC, "Content Security" },
|
| 1826 |
{ -1, NULL }
|
| 1827 |
}; |
| 1828 |
|
| 1829 |
static const char *usb_class_str(uint8_t class) |
| 1830 |
{
|
| 1831 |
const struct usb_class_info *p; |
| 1832 |
for(p = usb_class_info; p->class != -1; p++) { |
| 1833 |
if (p->class == class) {
|
| 1834 |
break;
|
| 1835 |
} |
| 1836 |
} |
| 1837 |
return p->class_name;
|
| 1838 |
} |
| 1839 |
|
| 1840 |
static void usb_info_device(Monitor *mon, int bus_num, |
| 1841 |
int addr, const char *port, |
| 1842 |
int class_id, int vendor_id, int product_id, |
| 1843 |
const char *product_name, |
| 1844 |
int speed)
|
| 1845 |
{
|
| 1846 |
const char *class_str, *speed_str; |
| 1847 |
|
| 1848 |
switch(speed) {
|
| 1849 |
case USB_SPEED_LOW:
|
| 1850 |
speed_str = "1.5";
|
| 1851 |
break;
|
| 1852 |
case USB_SPEED_FULL:
|
| 1853 |
speed_str = "12";
|
| 1854 |
break;
|
| 1855 |
case USB_SPEED_HIGH:
|
| 1856 |
speed_str = "480";
|
| 1857 |
break;
|
| 1858 |
case USB_SPEED_SUPER:
|
| 1859 |
speed_str = "5000";
|
| 1860 |
break;
|
| 1861 |
default:
|
| 1862 |
speed_str = "?";
|
| 1863 |
break;
|
| 1864 |
} |
| 1865 |
|
| 1866 |
monitor_printf(mon, " Bus %d, Addr %d, Port %s, Speed %s Mb/s\n",
|
| 1867 |
bus_num, addr, port, speed_str); |
| 1868 |
class_str = usb_class_str(class_id); |
| 1869 |
if (class_str) {
|
| 1870 |
monitor_printf(mon, " %s:", class_str);
|
| 1871 |
} else {
|
| 1872 |
monitor_printf(mon, " Class %02x:", class_id);
|
| 1873 |
} |
| 1874 |
monitor_printf(mon, " USB device %04x:%04x", vendor_id, product_id);
|
| 1875 |
if (product_name[0] != '\0') { |
| 1876 |
monitor_printf(mon, ", %s", product_name);
|
| 1877 |
} |
| 1878 |
monitor_printf(mon, "\n");
|
| 1879 |
} |
| 1880 |
|
| 1881 |
static int usb_host_info_device(void *opaque, int bus_num, int addr, |
| 1882 |
const char *path, int class_id, |
| 1883 |
int vendor_id, int product_id, |
| 1884 |
const char *product_name, |
| 1885 |
int speed)
|
| 1886 |
{
|
| 1887 |
Monitor *mon = opaque; |
| 1888 |
|
| 1889 |
usb_info_device(mon, bus_num, addr, path, class_id, vendor_id, product_id, |
| 1890 |
product_name, speed); |
| 1891 |
return 0; |
| 1892 |
} |
| 1893 |
|
| 1894 |
static void dec2str(int val, char *str, size_t size) |
| 1895 |
{
|
| 1896 |
if (val == 0) { |
| 1897 |
snprintf(str, size, "*");
|
| 1898 |
} else {
|
| 1899 |
snprintf(str, size, "%d", val);
|
| 1900 |
} |
| 1901 |
} |
| 1902 |
|
| 1903 |
static void hex2str(int val, char *str, size_t size) |
| 1904 |
{
|
| 1905 |
if (val == 0) { |
| 1906 |
snprintf(str, size, "*");
|
| 1907 |
} else {
|
| 1908 |
snprintf(str, size, "%04x", val);
|
| 1909 |
} |
| 1910 |
} |
| 1911 |
|
| 1912 |
void usb_host_info(Monitor *mon)
|
| 1913 |
{
|
| 1914 |
struct USBAutoFilter *f;
|
| 1915 |
struct USBHostDevice *s;
|
| 1916 |
|
| 1917 |
usb_host_scan(mon, usb_host_info_device); |
| 1918 |
|
| 1919 |
if (QTAILQ_EMPTY(&hostdevs)) {
|
| 1920 |
return;
|
| 1921 |
} |
| 1922 |
|
| 1923 |
monitor_printf(mon, " Auto filters:\n");
|
| 1924 |
QTAILQ_FOREACH(s, &hostdevs, next) {
|
| 1925 |
char bus[10], addr[10], vid[10], pid[10]; |
| 1926 |
f = &s->match; |
| 1927 |
dec2str(f->bus_num, bus, sizeof(bus));
|
| 1928 |
dec2str(f->addr, addr, sizeof(addr));
|
| 1929 |
hex2str(f->vendor_id, vid, sizeof(vid));
|
| 1930 |
hex2str(f->product_id, pid, sizeof(pid));
|
| 1931 |
monitor_printf(mon, " Bus %s, Addr %s, Port %s, ID %s:%s\n",
|
| 1932 |
bus, addr, f->port ? f->port : "*", vid, pid);
|
| 1933 |
} |
| 1934 |
} |