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/*
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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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* Magor rewrite to support fully async operation
|
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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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| 24 |
* 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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|
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#include "qemu-common.h" |
| 30 |
#include "qemu-timer.h" |
| 31 |
#include "console.h" |
| 32 |
|
| 33 |
#if defined(__linux__)
|
| 34 |
#include <dirent.h> |
| 35 |
#include <sys/ioctl.h> |
| 36 |
#include <signal.h> |
| 37 |
|
| 38 |
#include <linux/usb/ch9.h> |
| 39 |
#include <linux/usbdevice_fs.h> |
| 40 |
#include <linux/version.h> |
| 41 |
#include "hw/usb.h" |
| 42 |
|
| 43 |
typedef int USBScanFunc(void *opaque, int bus_num, int addr, int class_id, |
| 44 |
int vendor_id, int product_id, |
| 45 |
const char *product_name, int speed); |
| 46 |
static int usb_host_find_device(int *pbus_num, int *paddr, |
| 47 |
char *product_name, int product_name_size, |
| 48 |
const char *devname); |
| 49 |
//#define DEBUG
|
| 50 |
|
| 51 |
#ifdef DEBUG
|
| 52 |
#define dprintf printf
|
| 53 |
#else
|
| 54 |
#define dprintf(...)
|
| 55 |
#endif
|
| 56 |
|
| 57 |
#define USBDEVFS_PATH "/proc/bus/usb" |
| 58 |
#define PRODUCT_NAME_SZ 32 |
| 59 |
#define MAX_ENDPOINTS 16 |
| 60 |
|
| 61 |
/* endpoint association data */
|
| 62 |
struct endp_data {
|
| 63 |
uint8_t type; |
| 64 |
uint8_t halted; |
| 65 |
}; |
| 66 |
|
| 67 |
enum {
|
| 68 |
CTRL_STATE_IDLE = 0,
|
| 69 |
CTRL_STATE_SETUP, |
| 70 |
CTRL_STATE_DATA, |
| 71 |
CTRL_STATE_ACK |
| 72 |
}; |
| 73 |
|
| 74 |
/*
|
| 75 |
* Control transfer state.
|
| 76 |
* Note that 'buffer' _must_ follow 'req' field because
|
| 77 |
* we need contigious buffer when we submit control URB.
|
| 78 |
*/
|
| 79 |
struct ctrl_struct {
|
| 80 |
uint16_t len; |
| 81 |
uint16_t offset; |
| 82 |
uint8_t state; |
| 83 |
struct usb_ctrlrequest req;
|
| 84 |
uint8_t buffer[1024];
|
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}; |
| 86 |
|
| 87 |
typedef struct USBHostDevice { |
| 88 |
USBDevice dev; |
| 89 |
int fd;
|
| 90 |
|
| 91 |
uint8_t descr[1024];
|
| 92 |
int descr_len;
|
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int configuration;
|
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int ninterfaces;
|
| 95 |
int closing;
|
| 96 |
|
| 97 |
struct ctrl_struct ctrl;
|
| 98 |
struct endp_data endp_table[MAX_ENDPOINTS];
|
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|
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/* Host side address */
|
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int bus_num;
|
| 102 |
int addr;
|
| 103 |
|
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struct USBHostDevice *next;
|
| 105 |
} USBHostDevice; |
| 106 |
|
| 107 |
static int is_isoc(USBHostDevice *s, int ep) |
| 108 |
{
|
| 109 |
return s->endp_table[ep - 1].type == USBDEVFS_URB_TYPE_ISO; |
| 110 |
} |
| 111 |
|
| 112 |
static int is_halted(USBHostDevice *s, int ep) |
| 113 |
{
|
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return s->endp_table[ep - 1].halted; |
| 115 |
} |
| 116 |
|
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static void clear_halt(USBHostDevice *s, int ep) |
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{
|
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s->endp_table[ep - 1].halted = 0; |
| 120 |
} |
| 121 |
|
| 122 |
static void set_halt(USBHostDevice *s, int ep) |
| 123 |
{
|
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s->endp_table[ep - 1].halted = 1; |
| 125 |
} |
| 126 |
|
| 127 |
static USBHostDevice *hostdev_list;
|
| 128 |
|
| 129 |
static void hostdev_link(USBHostDevice *dev) |
| 130 |
{
|
| 131 |
dev->next = hostdev_list; |
| 132 |
hostdev_list = dev; |
| 133 |
} |
| 134 |
|
| 135 |
static void hostdev_unlink(USBHostDevice *dev) |
| 136 |
{
|
| 137 |
USBHostDevice *pdev = hostdev_list; |
| 138 |
USBHostDevice **prev = &hostdev_list; |
| 139 |
|
| 140 |
while (pdev) {
|
| 141 |
if (pdev == dev) {
|
| 142 |
*prev = dev->next; |
| 143 |
return;
|
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} |
| 145 |
|
| 146 |
prev = &pdev->next; |
| 147 |
pdev = pdev->next; |
| 148 |
} |
| 149 |
} |
| 150 |
|
| 151 |
static USBHostDevice *hostdev_find(int bus_num, int addr) |
| 152 |
{
|
| 153 |
USBHostDevice *s = hostdev_list; |
| 154 |
while (s) {
|
| 155 |
if (s->bus_num == bus_num && s->addr == addr)
|
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return s;
|
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s = s->next; |
| 158 |
} |
| 159 |
return NULL; |
| 160 |
} |
| 161 |
|
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/*
|
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* Async URB state.
|
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* We always allocate one isoc descriptor even for bulk transfers
|
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* to simplify allocation and casts.
|
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*/
|
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typedef struct AsyncURB |
| 168 |
{
|
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struct usbdevfs_urb urb;
|
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struct usbdevfs_iso_packet_desc isocpd;
|
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|
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USBPacket *packet; |
| 173 |
USBHostDevice *hdev; |
| 174 |
} AsyncURB; |
| 175 |
|
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static AsyncURB *async_alloc(void) |
| 177 |
{
|
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return (AsyncURB *) qemu_mallocz(sizeof(AsyncURB)); |
| 179 |
} |
| 180 |
|
| 181 |
static void async_free(AsyncURB *aurb) |
| 182 |
{
|
| 183 |
qemu_free(aurb); |
| 184 |
} |
| 185 |
|
| 186 |
static void async_complete_ctrl(USBHostDevice *s, USBPacket *p) |
| 187 |
{
|
| 188 |
switch(s->ctrl.state) {
|
| 189 |
case CTRL_STATE_SETUP:
|
| 190 |
if (p->len < s->ctrl.len)
|
| 191 |
s->ctrl.len = p->len; |
| 192 |
s->ctrl.state = CTRL_STATE_DATA; |
| 193 |
p->len = 8;
|
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break;
|
| 195 |
|
| 196 |
case CTRL_STATE_ACK:
|
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s->ctrl.state = CTRL_STATE_IDLE; |
| 198 |
p->len = 0;
|
| 199 |
break;
|
| 200 |
|
| 201 |
default:
|
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break;
|
| 203 |
} |
| 204 |
} |
| 205 |
|
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static void async_complete(void *opaque) |
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{
|
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USBHostDevice *s = opaque; |
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AsyncURB *aurb; |
| 210 |
|
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while (1) { |
| 212 |
USBPacket *p; |
| 213 |
|
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int r = ioctl(s->fd, USBDEVFS_REAPURBNDELAY, &aurb);
|
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if (r < 0) { |
| 216 |
if (errno == EAGAIN)
|
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return;
|
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|
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if (errno == ENODEV && !s->closing) {
|
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printf("husb: device %d.%d disconnected\n", s->bus_num, s->addr);
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usb_device_del_addr(0, s->dev.addr);
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return;
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} |
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|
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dprintf("husb: async. reap urb failed errno %d\n", errno);
|
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return;
|
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} |
| 228 |
|
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p = aurb->packet; |
| 230 |
|
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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); |
| 233 |
|
| 234 |
if (p) {
|
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switch (aurb->urb.status) {
|
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case 0: |
| 237 |
p->len = aurb->urb.actual_length; |
| 238 |
if (aurb->urb.type == USBDEVFS_URB_TYPE_CONTROL)
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async_complete_ctrl(s, p); |
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break;
|
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|
| 242 |
case -EPIPE:
|
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set_halt(s, p->devep); |
| 244 |
/* fall through */
|
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default:
|
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p->len = USB_RET_NAK; |
| 247 |
break;
|
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} |
| 249 |
|
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usb_packet_complete(p); |
| 251 |
} |
| 252 |
|
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async_free(aurb); |
| 254 |
} |
| 255 |
} |
| 256 |
|
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static void async_cancel(USBPacket *unused, void *opaque) |
| 258 |
{
|
| 259 |
AsyncURB *aurb = opaque; |
| 260 |
USBHostDevice *s = aurb->hdev; |
| 261 |
|
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dprintf("husb: async cancel. aurb %p\n", aurb);
|
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|
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/* Mark it as dead (see async_complete above) */
|
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aurb->packet = NULL;
|
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|
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int r = ioctl(s->fd, USBDEVFS_DISCARDURB, aurb);
|
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if (r < 0) { |
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dprintf("husb: async. discard urb failed errno %d\n", errno);
|
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} |
| 271 |
} |
| 272 |
|
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static int usb_host_claim_interfaces(USBHostDevice *dev, int configuration) |
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{
|
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int dev_descr_len, config_descr_len;
|
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int interface, nb_interfaces, nb_configurations;
|
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int ret, i;
|
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|
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if (configuration == 0) /* address state - ignore */ |
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return 1; |
| 281 |
|
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dprintf("husb: claiming interfaces. config %d\n", configuration);
|
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|
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i = 0;
|
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dev_descr_len = dev->descr[0];
|
| 286 |
if (dev_descr_len > dev->descr_len)
|
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goto fail;
|
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nb_configurations = dev->descr[17];
|
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|
| 290 |
i += dev_descr_len; |
| 291 |
while (i < dev->descr_len) {
|
| 292 |
dprintf("husb: i is %d, descr_len is %d, dl %d, dt %d\n", i, dev->descr_len,
|
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dev->descr[i], dev->descr[i+1]);
|
| 294 |
|
| 295 |
if (dev->descr[i+1] != USB_DT_CONFIG) { |
| 296 |
i += dev->descr[i]; |
| 297 |
continue;
|
| 298 |
} |
| 299 |
config_descr_len = dev->descr[i]; |
| 300 |
|
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printf("husb: config #%d need %d\n", dev->descr[i + 5], configuration); |
| 302 |
|
| 303 |
if (configuration < 0 || configuration == dev->descr[i + 5]) { |
| 304 |
configuration = dev->descr[i + 5];
|
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break;
|
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} |
| 307 |
|
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i += config_descr_len; |
| 309 |
} |
| 310 |
|
| 311 |
if (i >= dev->descr_len) {
|
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fprintf(stderr, "husb: update iface failed. no matching configuration\n");
|
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goto fail;
|
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} |
| 315 |
nb_interfaces = dev->descr[i + 4];
|
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|
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#ifdef USBDEVFS_DISCONNECT
|
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/* earlier Linux 2.4 do not support that */
|
| 319 |
{
|
| 320 |
struct usbdevfs_ioctl ctrl;
|
| 321 |
for (interface = 0; interface < nb_interfaces; interface++) { |
| 322 |
ctrl.ioctl_code = USBDEVFS_DISCONNECT; |
| 323 |
ctrl.ifno = interface; |
| 324 |
ret = ioctl(dev->fd, USBDEVFS_IOCTL, &ctrl); |
| 325 |
if (ret < 0 && errno != ENODATA) { |
| 326 |
perror("USBDEVFS_DISCONNECT");
|
| 327 |
goto fail;
|
| 328 |
} |
| 329 |
} |
| 330 |
} |
| 331 |
#endif
|
| 332 |
|
| 333 |
/* XXX: only grab if all interfaces are free */
|
| 334 |
for (interface = 0; interface < nb_interfaces; interface++) { |
| 335 |
ret = ioctl(dev->fd, USBDEVFS_CLAIMINTERFACE, &interface); |
| 336 |
if (ret < 0) { |
| 337 |
if (errno == EBUSY) {
|
| 338 |
printf("husb: update iface. device already grabbed\n");
|
| 339 |
} else {
|
| 340 |
perror("husb: failed to claim interface");
|
| 341 |
} |
| 342 |
fail:
|
| 343 |
return 0; |
| 344 |
} |
| 345 |
} |
| 346 |
|
| 347 |
printf("husb: %d interfaces claimed for configuration %d\n",
|
| 348 |
nb_interfaces, configuration); |
| 349 |
|
| 350 |
dev->ninterfaces = nb_interfaces; |
| 351 |
dev->configuration = configuration; |
| 352 |
return 1; |
| 353 |
} |
| 354 |
|
| 355 |
static int usb_host_release_interfaces(USBHostDevice *s) |
| 356 |
{
|
| 357 |
int ret, i;
|
| 358 |
|
| 359 |
dprintf("husb: releasing interfaces\n");
|
| 360 |
|
| 361 |
for (i = 0; i < s->ninterfaces; i++) { |
| 362 |
ret = ioctl(s->fd, USBDEVFS_RELEASEINTERFACE, &i); |
| 363 |
if (ret < 0) { |
| 364 |
perror("husb: failed to release interface");
|
| 365 |
return 0; |
| 366 |
} |
| 367 |
} |
| 368 |
|
| 369 |
return 1; |
| 370 |
} |
| 371 |
|
| 372 |
static void usb_host_handle_reset(USBDevice *dev) |
| 373 |
{
|
| 374 |
USBHostDevice *s = (USBHostDevice *) dev; |
| 375 |
|
| 376 |
dprintf("husb: reset device %u.%u\n", s->bus_num, s->addr);
|
| 377 |
|
| 378 |
ioctl(s->fd, USBDEVFS_RESET); |
| 379 |
|
| 380 |
usb_host_claim_interfaces(s, s->configuration); |
| 381 |
} |
| 382 |
|
| 383 |
static void usb_host_handle_destroy(USBDevice *dev) |
| 384 |
{
|
| 385 |
USBHostDevice *s = (USBHostDevice *)dev; |
| 386 |
|
| 387 |
s->closing = 1;
|
| 388 |
|
| 389 |
qemu_set_fd_handler(s->fd, NULL, NULL, NULL); |
| 390 |
|
| 391 |
hostdev_unlink(s); |
| 392 |
|
| 393 |
async_complete(s); |
| 394 |
|
| 395 |
if (s->fd >= 0) |
| 396 |
close(s->fd); |
| 397 |
|
| 398 |
qemu_free(s); |
| 399 |
} |
| 400 |
|
| 401 |
static int usb_linux_update_endp_table(USBHostDevice *s); |
| 402 |
|
| 403 |
static int usb_host_handle_data(USBHostDevice *s, USBPacket *p) |
| 404 |
{
|
| 405 |
struct usbdevfs_urb *urb;
|
| 406 |
AsyncURB *aurb; |
| 407 |
int ret;
|
| 408 |
|
| 409 |
aurb = async_alloc(); |
| 410 |
if (!aurb) {
|
| 411 |
dprintf("husb: async malloc failed\n");
|
| 412 |
return USB_RET_NAK;
|
| 413 |
} |
| 414 |
aurb->hdev = s; |
| 415 |
aurb->packet = p; |
| 416 |
|
| 417 |
urb = &aurb->urb; |
| 418 |
|
| 419 |
if (p->pid == USB_TOKEN_IN)
|
| 420 |
urb->endpoint = p->devep | 0x80;
|
| 421 |
else
|
| 422 |
urb->endpoint = p->devep; |
| 423 |
|
| 424 |
if (is_halted(s, p->devep)) {
|
| 425 |
ret = ioctl(s->fd, USBDEVFS_CLEAR_HALT, &urb->endpoint); |
| 426 |
if (ret < 0) { |
| 427 |
dprintf("husb: failed to clear halt. ep 0x%x errno %d\n",
|
| 428 |
urb->endpoint, errno); |
| 429 |
return USB_RET_NAK;
|
| 430 |
} |
| 431 |
clear_halt(s, p->devep); |
| 432 |
} |
| 433 |
|
| 434 |
urb->buffer = p->data; |
| 435 |
urb->buffer_length = p->len; |
| 436 |
|
| 437 |
if (is_isoc(s, p->devep)) {
|
| 438 |
/* Setup ISOC transfer */
|
| 439 |
urb->type = USBDEVFS_URB_TYPE_ISO; |
| 440 |
urb->flags = USBDEVFS_URB_ISO_ASAP; |
| 441 |
urb->number_of_packets = 1;
|
| 442 |
urb->iso_frame_desc[0].length = p->len;
|
| 443 |
} else {
|
| 444 |
/* Setup bulk transfer */
|
| 445 |
urb->type = USBDEVFS_URB_TYPE_BULK; |
| 446 |
} |
| 447 |
|
| 448 |
urb->usercontext = s; |
| 449 |
|
| 450 |
ret = ioctl(s->fd, USBDEVFS_SUBMITURB, urb); |
| 451 |
|
| 452 |
dprintf("husb: data submit. ep 0x%x len %u aurb %p\n", urb->endpoint, p->len, aurb);
|
| 453 |
|
| 454 |
if (ret < 0) { |
| 455 |
dprintf("husb: submit failed. errno %d\n", errno);
|
| 456 |
async_free(aurb); |
| 457 |
|
| 458 |
switch(errno) {
|
| 459 |
case ETIMEDOUT:
|
| 460 |
return USB_RET_NAK;
|
| 461 |
case EPIPE:
|
| 462 |
default:
|
| 463 |
return USB_RET_STALL;
|
| 464 |
} |
| 465 |
} |
| 466 |
|
| 467 |
usb_defer_packet(p, async_cancel, aurb); |
| 468 |
return USB_RET_ASYNC;
|
| 469 |
} |
| 470 |
|
| 471 |
static int ctrl_error(void) |
| 472 |
{
|
| 473 |
if (errno == ETIMEDOUT)
|
| 474 |
return USB_RET_NAK;
|
| 475 |
else
|
| 476 |
return USB_RET_STALL;
|
| 477 |
} |
| 478 |
|
| 479 |
static int usb_host_set_address(USBHostDevice *s, int addr) |
| 480 |
{
|
| 481 |
dprintf("husb: ctrl set addr %u\n", addr);
|
| 482 |
s->dev.addr = addr; |
| 483 |
return 0; |
| 484 |
} |
| 485 |
|
| 486 |
static int usb_host_set_config(USBHostDevice *s, int config) |
| 487 |
{
|
| 488 |
usb_host_release_interfaces(s); |
| 489 |
|
| 490 |
int ret = ioctl(s->fd, USBDEVFS_SETCONFIGURATION, &config);
|
| 491 |
|
| 492 |
dprintf("husb: ctrl set config %d ret %d errno %d\n", config, ret, errno);
|
| 493 |
|
| 494 |
if (ret < 0) |
| 495 |
return ctrl_error();
|
| 496 |
|
| 497 |
usb_host_claim_interfaces(s, config); |
| 498 |
return 0; |
| 499 |
} |
| 500 |
|
| 501 |
static int usb_host_set_interface(USBHostDevice *s, int iface, int alt) |
| 502 |
{
|
| 503 |
struct usbdevfs_setinterface si;
|
| 504 |
int ret;
|
| 505 |
|
| 506 |
si.interface = iface; |
| 507 |
si.altsetting = alt; |
| 508 |
ret = ioctl(s->fd, USBDEVFS_SETINTERFACE, &si); |
| 509 |
|
| 510 |
dprintf("husb: ctrl set iface %d altset %d ret %d errno %d\n",
|
| 511 |
iface, alt, ret, errno); |
| 512 |
|
| 513 |
if (ret < 0) |
| 514 |
return ctrl_error();
|
| 515 |
|
| 516 |
usb_linux_update_endp_table(s); |
| 517 |
return 0; |
| 518 |
} |
| 519 |
|
| 520 |
static int usb_host_handle_control(USBHostDevice *s, USBPacket *p) |
| 521 |
{
|
| 522 |
struct usbdevfs_urb *urb;
|
| 523 |
AsyncURB *aurb; |
| 524 |
int ret, value, index;
|
| 525 |
|
| 526 |
/*
|
| 527 |
* Process certain standard device requests.
|
| 528 |
* These are infrequent and are processed synchronously.
|
| 529 |
*/
|
| 530 |
value = le16_to_cpu(s->ctrl.req.wValue); |
| 531 |
index = le16_to_cpu(s->ctrl.req.wIndex); |
| 532 |
|
| 533 |
dprintf("husb: ctrl type 0x%x req 0x%x val 0x%x index %u len %u\n",
|
| 534 |
s->ctrl.req.bRequestType, s->ctrl.req.bRequest, value, index, |
| 535 |
s->ctrl.len); |
| 536 |
|
| 537 |
if (s->ctrl.req.bRequestType == 0) { |
| 538 |
switch (s->ctrl.req.bRequest) {
|
| 539 |
case USB_REQ_SET_ADDRESS:
|
| 540 |
return usb_host_set_address(s, value);
|
| 541 |
|
| 542 |
case USB_REQ_SET_CONFIGURATION:
|
| 543 |
return usb_host_set_config(s, value & 0xff); |
| 544 |
} |
| 545 |
} |
| 546 |
|
| 547 |
if (s->ctrl.req.bRequestType == 1 && |
| 548 |
s->ctrl.req.bRequest == USB_REQ_SET_INTERFACE) |
| 549 |
return usb_host_set_interface(s, index, value);
|
| 550 |
|
| 551 |
/* The rest are asynchronous */
|
| 552 |
|
| 553 |
aurb = async_alloc(); |
| 554 |
if (!aurb) {
|
| 555 |
dprintf("husb: async malloc failed\n");
|
| 556 |
return USB_RET_NAK;
|
| 557 |
} |
| 558 |
aurb->hdev = s; |
| 559 |
aurb->packet = p; |
| 560 |
|
| 561 |
/*
|
| 562 |
* Setup ctrl transfer.
|
| 563 |
*
|
| 564 |
* s->ctrl is layed out such that data buffer immediately follows
|
| 565 |
* 'req' struct which is exactly what usbdevfs expects.
|
| 566 |
*/
|
| 567 |
urb = &aurb->urb; |
| 568 |
|
| 569 |
urb->type = USBDEVFS_URB_TYPE_CONTROL; |
| 570 |
urb->endpoint = p->devep; |
| 571 |
|
| 572 |
urb->buffer = &s->ctrl.req; |
| 573 |
urb->buffer_length = 8 + s->ctrl.len;
|
| 574 |
|
| 575 |
urb->usercontext = s; |
| 576 |
|
| 577 |
ret = ioctl(s->fd, USBDEVFS_SUBMITURB, urb); |
| 578 |
|
| 579 |
dprintf("husb: submit ctrl. len %u aurb %p\n", urb->buffer_length, aurb);
|
| 580 |
|
| 581 |
if (ret < 0) { |
| 582 |
dprintf("husb: submit failed. errno %d\n", errno);
|
| 583 |
async_free(aurb); |
| 584 |
|
| 585 |
switch(errno) {
|
| 586 |
case ETIMEDOUT:
|
| 587 |
return USB_RET_NAK;
|
| 588 |
case EPIPE:
|
| 589 |
default:
|
| 590 |
return USB_RET_STALL;
|
| 591 |
} |
| 592 |
} |
| 593 |
|
| 594 |
usb_defer_packet(p, async_cancel, aurb); |
| 595 |
return USB_RET_ASYNC;
|
| 596 |
} |
| 597 |
|
| 598 |
static int do_token_setup(USBDevice *dev, USBPacket *p) |
| 599 |
{
|
| 600 |
USBHostDevice *s = (USBHostDevice *) dev; |
| 601 |
int ret = 0; |
| 602 |
|
| 603 |
if (p->len != 8) |
| 604 |
return USB_RET_STALL;
|
| 605 |
|
| 606 |
memcpy(&s->ctrl.req, p->data, 8);
|
| 607 |
s->ctrl.len = le16_to_cpu(s->ctrl.req.wLength); |
| 608 |
s->ctrl.offset = 0;
|
| 609 |
s->ctrl.state = CTRL_STATE_SETUP; |
| 610 |
|
| 611 |
if (s->ctrl.req.bRequestType & USB_DIR_IN) {
|
| 612 |
ret = usb_host_handle_control(s, p); |
| 613 |
if (ret < 0) |
| 614 |
return ret;
|
| 615 |
|
| 616 |
if (ret < s->ctrl.len)
|
| 617 |
s->ctrl.len = ret; |
| 618 |
s->ctrl.state = CTRL_STATE_DATA; |
| 619 |
} else {
|
| 620 |
if (s->ctrl.len == 0) |
| 621 |
s->ctrl.state = CTRL_STATE_ACK; |
| 622 |
else
|
| 623 |
s->ctrl.state = CTRL_STATE_DATA; |
| 624 |
} |
| 625 |
|
| 626 |
return ret;
|
| 627 |
} |
| 628 |
|
| 629 |
static int do_token_in(USBDevice *dev, USBPacket *p) |
| 630 |
{
|
| 631 |
USBHostDevice *s = (USBHostDevice *) dev; |
| 632 |
int ret = 0; |
| 633 |
|
| 634 |
if (p->devep != 0) |
| 635 |
return usb_host_handle_data(s, p);
|
| 636 |
|
| 637 |
switch(s->ctrl.state) {
|
| 638 |
case CTRL_STATE_ACK:
|
| 639 |
if (!(s->ctrl.req.bRequestType & USB_DIR_IN)) {
|
| 640 |
ret = usb_host_handle_control(s, p); |
| 641 |
if (ret == USB_RET_ASYNC)
|
| 642 |
return USB_RET_ASYNC;
|
| 643 |
|
| 644 |
s->ctrl.state = CTRL_STATE_IDLE; |
| 645 |
return ret > 0 ? 0 : ret; |
| 646 |
} |
| 647 |
|
| 648 |
return 0; |
| 649 |
|
| 650 |
case CTRL_STATE_DATA:
|
| 651 |
if (s->ctrl.req.bRequestType & USB_DIR_IN) {
|
| 652 |
int len = s->ctrl.len - s->ctrl.offset;
|
| 653 |
if (len > p->len)
|
| 654 |
len = p->len; |
| 655 |
memcpy(p->data, s->ctrl.buffer + s->ctrl.offset, len); |
| 656 |
s->ctrl.offset += len; |
| 657 |
if (s->ctrl.offset >= s->ctrl.len)
|
| 658 |
s->ctrl.state = CTRL_STATE_ACK; |
| 659 |
return len;
|
| 660 |
} |
| 661 |
|
| 662 |
s->ctrl.state = CTRL_STATE_IDLE; |
| 663 |
return USB_RET_STALL;
|
| 664 |
|
| 665 |
default:
|
| 666 |
return USB_RET_STALL;
|
| 667 |
} |
| 668 |
} |
| 669 |
|
| 670 |
static int do_token_out(USBDevice *dev, USBPacket *p) |
| 671 |
{
|
| 672 |
USBHostDevice *s = (USBHostDevice *) dev; |
| 673 |
|
| 674 |
if (p->devep != 0) |
| 675 |
return usb_host_handle_data(s, p);
|
| 676 |
|
| 677 |
switch(s->ctrl.state) {
|
| 678 |
case CTRL_STATE_ACK:
|
| 679 |
if (s->ctrl.req.bRequestType & USB_DIR_IN) {
|
| 680 |
s->ctrl.state = CTRL_STATE_IDLE; |
| 681 |
/* transfer OK */
|
| 682 |
} else {
|
| 683 |
/* ignore additional output */
|
| 684 |
} |
| 685 |
return 0; |
| 686 |
|
| 687 |
case CTRL_STATE_DATA:
|
| 688 |
if (!(s->ctrl.req.bRequestType & USB_DIR_IN)) {
|
| 689 |
int len = s->ctrl.len - s->ctrl.offset;
|
| 690 |
if (len > p->len)
|
| 691 |
len = p->len; |
| 692 |
memcpy(s->ctrl.buffer + s->ctrl.offset, p->data, len); |
| 693 |
s->ctrl.offset += len; |
| 694 |
if (s->ctrl.offset >= s->ctrl.len)
|
| 695 |
s->ctrl.state = CTRL_STATE_ACK; |
| 696 |
return len;
|
| 697 |
} |
| 698 |
|
| 699 |
s->ctrl.state = CTRL_STATE_IDLE; |
| 700 |
return USB_RET_STALL;
|
| 701 |
|
| 702 |
default:
|
| 703 |
return USB_RET_STALL;
|
| 704 |
} |
| 705 |
} |
| 706 |
|
| 707 |
/*
|
| 708 |
* Packet handler.
|
| 709 |
* Called by the HC (host controller).
|
| 710 |
*
|
| 711 |
* Returns length of the transaction or one of the USB_RET_XXX codes.
|
| 712 |
*/
|
| 713 |
int usb_host_handle_packet(USBDevice *s, USBPacket *p)
|
| 714 |
{
|
| 715 |
switch(p->pid) {
|
| 716 |
case USB_MSG_ATTACH:
|
| 717 |
s->state = USB_STATE_ATTACHED; |
| 718 |
return 0; |
| 719 |
|
| 720 |
case USB_MSG_DETACH:
|
| 721 |
s->state = USB_STATE_NOTATTACHED; |
| 722 |
return 0; |
| 723 |
|
| 724 |
case USB_MSG_RESET:
|
| 725 |
s->remote_wakeup = 0;
|
| 726 |
s->addr = 0;
|
| 727 |
s->state = USB_STATE_DEFAULT; |
| 728 |
s->handle_reset(s); |
| 729 |
return 0; |
| 730 |
} |
| 731 |
|
| 732 |
/* Rest of the PIDs must match our address */
|
| 733 |
if (s->state < USB_STATE_DEFAULT || p->devaddr != s->addr)
|
| 734 |
return USB_RET_NODEV;
|
| 735 |
|
| 736 |
switch (p->pid) {
|
| 737 |
case USB_TOKEN_SETUP:
|
| 738 |
return do_token_setup(s, p);
|
| 739 |
|
| 740 |
case USB_TOKEN_IN:
|
| 741 |
return do_token_in(s, p);
|
| 742 |
|
| 743 |
case USB_TOKEN_OUT:
|
| 744 |
return do_token_out(s, p);
|
| 745 |
|
| 746 |
default:
|
| 747 |
return USB_RET_STALL;
|
| 748 |
} |
| 749 |
} |
| 750 |
|
| 751 |
/* returns 1 on problem encountered or 0 for success */
|
| 752 |
static int usb_linux_update_endp_table(USBHostDevice *s) |
| 753 |
{
|
| 754 |
uint8_t *descriptors; |
| 755 |
uint8_t devep, type, configuration, alt_interface; |
| 756 |
struct usbdevfs_ctrltransfer ct;
|
| 757 |
int interface, ret, length, i;
|
| 758 |
|
| 759 |
ct.bRequestType = USB_DIR_IN; |
| 760 |
ct.bRequest = USB_REQ_GET_CONFIGURATION; |
| 761 |
ct.wValue = 0;
|
| 762 |
ct.wIndex = 0;
|
| 763 |
ct.wLength = 1;
|
| 764 |
ct.data = &configuration; |
| 765 |
ct.timeout = 50;
|
| 766 |
|
| 767 |
ret = ioctl(s->fd, USBDEVFS_CONTROL, &ct); |
| 768 |
if (ret < 0) { |
| 769 |
perror("usb_linux_update_endp_table");
|
| 770 |
return 1; |
| 771 |
} |
| 772 |
|
| 773 |
/* in address state */
|
| 774 |
if (configuration == 0) |
| 775 |
return 1; |
| 776 |
|
| 777 |
/* get the desired configuration, interface, and endpoint descriptors
|
| 778 |
* from device description */
|
| 779 |
descriptors = &s->descr[18];
|
| 780 |
length = s->descr_len - 18;
|
| 781 |
i = 0;
|
| 782 |
|
| 783 |
if (descriptors[i + 1] != USB_DT_CONFIG || |
| 784 |
descriptors[i + 5] != configuration) {
|
| 785 |
dprintf("invalid descriptor data - configuration\n");
|
| 786 |
return 1; |
| 787 |
} |
| 788 |
i += descriptors[i]; |
| 789 |
|
| 790 |
while (i < length) {
|
| 791 |
if (descriptors[i + 1] != USB_DT_INTERFACE || |
| 792 |
(descriptors[i + 1] == USB_DT_INTERFACE &&
|
| 793 |
descriptors[i + 4] == 0)) { |
| 794 |
i += descriptors[i]; |
| 795 |
continue;
|
| 796 |
} |
| 797 |
|
| 798 |
interface = descriptors[i + 2];
|
| 799 |
|
| 800 |
ct.bRequestType = USB_DIR_IN | USB_RECIP_INTERFACE; |
| 801 |
ct.bRequest = USB_REQ_GET_INTERFACE; |
| 802 |
ct.wValue = 0;
|
| 803 |
ct.wIndex = interface; |
| 804 |
ct.wLength = 1;
|
| 805 |
ct.data = &alt_interface; |
| 806 |
ct.timeout = 50;
|
| 807 |
|
| 808 |
ret = ioctl(s->fd, USBDEVFS_CONTROL, &ct); |
| 809 |
if (ret < 0) { |
| 810 |
perror("usb_linux_update_endp_table");
|
| 811 |
return 1; |
| 812 |
} |
| 813 |
|
| 814 |
/* the current interface descriptor is the active interface
|
| 815 |
* and has endpoints */
|
| 816 |
if (descriptors[i + 3] != alt_interface) { |
| 817 |
i += descriptors[i]; |
| 818 |
continue;
|
| 819 |
} |
| 820 |
|
| 821 |
/* advance to the endpoints */
|
| 822 |
while (i < length && descriptors[i +1] != USB_DT_ENDPOINT) |
| 823 |
i += descriptors[i]; |
| 824 |
|
| 825 |
if (i >= length)
|
| 826 |
break;
|
| 827 |
|
| 828 |
while (i < length) {
|
| 829 |
if (descriptors[i + 1] != USB_DT_ENDPOINT) |
| 830 |
break;
|
| 831 |
|
| 832 |
devep = descriptors[i + 2];
|
| 833 |
switch (descriptors[i + 3] & 0x3) { |
| 834 |
case 0x00: |
| 835 |
type = USBDEVFS_URB_TYPE_CONTROL; |
| 836 |
break;
|
| 837 |
case 0x01: |
| 838 |
type = USBDEVFS_URB_TYPE_ISO; |
| 839 |
break;
|
| 840 |
case 0x02: |
| 841 |
type = USBDEVFS_URB_TYPE_BULK; |
| 842 |
break;
|
| 843 |
case 0x03: |
| 844 |
type = USBDEVFS_URB_TYPE_INTERRUPT; |
| 845 |
break;
|
| 846 |
default:
|
| 847 |
dprintf("usb_host: malformed endpoint type\n");
|
| 848 |
type = USBDEVFS_URB_TYPE_BULK; |
| 849 |
} |
| 850 |
s->endp_table[(devep & 0xf) - 1].type = type; |
| 851 |
s->endp_table[(devep & 0xf) - 1].halted = 0; |
| 852 |
|
| 853 |
i += descriptors[i]; |
| 854 |
} |
| 855 |
} |
| 856 |
return 0; |
| 857 |
} |
| 858 |
|
| 859 |
static USBDevice *usb_host_device_open_addr(int bus_num, int addr, const char *prod_name) |
| 860 |
{
|
| 861 |
int fd = -1, ret; |
| 862 |
USBHostDevice *dev = NULL;
|
| 863 |
struct usbdevfs_connectinfo ci;
|
| 864 |
char buf[1024]; |
| 865 |
|
| 866 |
dev = qemu_mallocz(sizeof(USBHostDevice));
|
| 867 |
if (!dev)
|
| 868 |
goto fail;
|
| 869 |
|
| 870 |
dev->bus_num = bus_num; |
| 871 |
dev->addr = addr; |
| 872 |
|
| 873 |
printf("husb: open device %d.%d\n", bus_num, addr);
|
| 874 |
|
| 875 |
snprintf(buf, sizeof(buf), USBDEVFS_PATH "/%03d/%03d", |
| 876 |
bus_num, addr); |
| 877 |
fd = open(buf, O_RDWR | O_NONBLOCK); |
| 878 |
if (fd < 0) { |
| 879 |
perror(buf); |
| 880 |
goto fail;
|
| 881 |
} |
| 882 |
|
| 883 |
/* read the device description */
|
| 884 |
dev->descr_len = read(fd, dev->descr, sizeof(dev->descr));
|
| 885 |
if (dev->descr_len <= 0) { |
| 886 |
perror("husb: reading device data failed");
|
| 887 |
goto fail;
|
| 888 |
} |
| 889 |
|
| 890 |
#ifdef DEBUG
|
| 891 |
{
|
| 892 |
int x;
|
| 893 |
printf("=== begin dumping device descriptor data ===\n");
|
| 894 |
for (x = 0; x < dev->descr_len; x++) |
| 895 |
printf("%02x ", dev->descr[x]);
|
| 896 |
printf("\n=== end dumping device descriptor data ===\n");
|
| 897 |
} |
| 898 |
#endif
|
| 899 |
|
| 900 |
dev->fd = fd; |
| 901 |
|
| 902 |
/*
|
| 903 |
* Initial configuration is -1 which makes us claim first
|
| 904 |
* available config. We used to start with 1, which does not
|
| 905 |
* always work. I've seen devices where first config starts
|
| 906 |
* with 2.
|
| 907 |
*/
|
| 908 |
if (!usb_host_claim_interfaces(dev, -1)) |
| 909 |
goto fail;
|
| 910 |
|
| 911 |
ret = ioctl(fd, USBDEVFS_CONNECTINFO, &ci); |
| 912 |
if (ret < 0) { |
| 913 |
perror("usb_host_device_open: USBDEVFS_CONNECTINFO");
|
| 914 |
goto fail;
|
| 915 |
} |
| 916 |
|
| 917 |
printf("husb: grabbed usb device %d.%d\n", bus_num, addr);
|
| 918 |
|
| 919 |
ret = usb_linux_update_endp_table(dev); |
| 920 |
if (ret)
|
| 921 |
goto fail;
|
| 922 |
|
| 923 |
if (ci.slow)
|
| 924 |
dev->dev.speed = USB_SPEED_LOW; |
| 925 |
else
|
| 926 |
dev->dev.speed = USB_SPEED_HIGH; |
| 927 |
|
| 928 |
dev->dev.handle_packet = usb_host_handle_packet; |
| 929 |
dev->dev.handle_reset = usb_host_handle_reset; |
| 930 |
dev->dev.handle_destroy = usb_host_handle_destroy; |
| 931 |
|
| 932 |
if (!prod_name || prod_name[0] == '\0') |
| 933 |
snprintf(dev->dev.devname, sizeof(dev->dev.devname),
|
| 934 |
"host:%d.%d", bus_num, addr);
|
| 935 |
else
|
| 936 |
pstrcpy(dev->dev.devname, sizeof(dev->dev.devname),
|
| 937 |
prod_name); |
| 938 |
|
| 939 |
/* USB devio uses 'write' flag to check for async completions */
|
| 940 |
qemu_set_fd_handler(dev->fd, NULL, async_complete, dev);
|
| 941 |
|
| 942 |
hostdev_link(dev); |
| 943 |
|
| 944 |
return (USBDevice *) dev;
|
| 945 |
|
| 946 |
fail:
|
| 947 |
if (dev)
|
| 948 |
qemu_free(dev); |
| 949 |
|
| 950 |
close(fd); |
| 951 |
return NULL; |
| 952 |
} |
| 953 |
|
| 954 |
USBDevice *usb_host_device_open(const char *devname) |
| 955 |
{
|
| 956 |
int bus_num, addr;
|
| 957 |
char product_name[PRODUCT_NAME_SZ];
|
| 958 |
|
| 959 |
if (usb_host_find_device(&bus_num, &addr,
|
| 960 |
product_name, sizeof(product_name),
|
| 961 |
devname) < 0)
|
| 962 |
return NULL; |
| 963 |
|
| 964 |
if (hostdev_find(bus_num, addr)) {
|
| 965 |
term_printf("husb: host usb device %d.%d is already open\n", bus_num, addr);
|
| 966 |
return NULL; |
| 967 |
} |
| 968 |
|
| 969 |
return usb_host_device_open_addr(bus_num, addr, product_name);
|
| 970 |
} |
| 971 |
|
| 972 |
static int get_tag_value(char *buf, int buf_size, |
| 973 |
const char *str, const char *tag, |
| 974 |
const char *stopchars) |
| 975 |
{
|
| 976 |
const char *p; |
| 977 |
char *q;
|
| 978 |
p = strstr(str, tag); |
| 979 |
if (!p)
|
| 980 |
return -1; |
| 981 |
p += strlen(tag); |
| 982 |
while (isspace(*p))
|
| 983 |
p++; |
| 984 |
q = buf; |
| 985 |
while (*p != '\0' && !strchr(stopchars, *p)) { |
| 986 |
if ((q - buf) < (buf_size - 1)) |
| 987 |
*q++ = *p; |
| 988 |
p++; |
| 989 |
} |
| 990 |
*q = '\0';
|
| 991 |
return q - buf;
|
| 992 |
} |
| 993 |
|
| 994 |
static int usb_host_scan(void *opaque, USBScanFunc *func) |
| 995 |
{
|
| 996 |
FILE *f; |
| 997 |
char line[1024]; |
| 998 |
char buf[1024]; |
| 999 |
int bus_num, addr, speed, device_count, class_id, product_id, vendor_id;
|
| 1000 |
int ret;
|
| 1001 |
char product_name[512]; |
| 1002 |
|
| 1003 |
f = fopen(USBDEVFS_PATH "/devices", "r"); |
| 1004 |
if (!f) {
|
| 1005 |
term_printf("husb: could not open %s\n", USBDEVFS_PATH "/devices"); |
| 1006 |
return 0; |
| 1007 |
} |
| 1008 |
device_count = 0;
|
| 1009 |
bus_num = addr = speed = class_id = product_id = vendor_id = 0;
|
| 1010 |
ret = 0;
|
| 1011 |
for(;;) {
|
| 1012 |
if (fgets(line, sizeof(line), f) == NULL) |
| 1013 |
break;
|
| 1014 |
if (strlen(line) > 0) |
| 1015 |
line[strlen(line) - 1] = '\0'; |
| 1016 |
if (line[0] == 'T' && line[1] == ':') { |
| 1017 |
if (device_count && (vendor_id || product_id)) {
|
| 1018 |
/* New device. Add the previously discovered device. */
|
| 1019 |
ret = func(opaque, bus_num, addr, class_id, vendor_id, |
| 1020 |
product_id, product_name, speed); |
| 1021 |
if (ret)
|
| 1022 |
goto the_end;
|
| 1023 |
} |
| 1024 |
if (get_tag_value(buf, sizeof(buf), line, "Bus=", " ") < 0) |
| 1025 |
goto fail;
|
| 1026 |
bus_num = atoi(buf); |
| 1027 |
if (get_tag_value(buf, sizeof(buf), line, "Dev#=", " ") < 0) |
| 1028 |
goto fail;
|
| 1029 |
addr = atoi(buf); |
| 1030 |
if (get_tag_value(buf, sizeof(buf), line, "Spd=", " ") < 0) |
| 1031 |
goto fail;
|
| 1032 |
if (!strcmp(buf, "480")) |
| 1033 |
speed = USB_SPEED_HIGH; |
| 1034 |
else if (!strcmp(buf, "1.5")) |
| 1035 |
speed = USB_SPEED_LOW; |
| 1036 |
else
|
| 1037 |
speed = USB_SPEED_FULL; |
| 1038 |
product_name[0] = '\0'; |
| 1039 |
class_id = 0xff;
|
| 1040 |
device_count++; |
| 1041 |
product_id = 0;
|
| 1042 |
vendor_id = 0;
|
| 1043 |
} else if (line[0] == 'P' && line[1] == ':') { |
| 1044 |
if (get_tag_value(buf, sizeof(buf), line, "Vendor=", " ") < 0) |
| 1045 |
goto fail;
|
| 1046 |
vendor_id = strtoul(buf, NULL, 16); |
| 1047 |
if (get_tag_value(buf, sizeof(buf), line, "ProdID=", " ") < 0) |
| 1048 |
goto fail;
|
| 1049 |
product_id = strtoul(buf, NULL, 16); |
| 1050 |
} else if (line[0] == 'S' && line[1] == ':') { |
| 1051 |
if (get_tag_value(buf, sizeof(buf), line, "Product=", "") < 0) |
| 1052 |
goto fail;
|
| 1053 |
pstrcpy(product_name, sizeof(product_name), buf);
|
| 1054 |
} else if (line[0] == 'D' && line[1] == ':') { |
| 1055 |
if (get_tag_value(buf, sizeof(buf), line, "Cls=", " (") < 0) |
| 1056 |
goto fail;
|
| 1057 |
class_id = strtoul(buf, NULL, 16); |
| 1058 |
} |
| 1059 |
fail: ;
|
| 1060 |
} |
| 1061 |
if (device_count && (vendor_id || product_id)) {
|
| 1062 |
/* Add the last device. */
|
| 1063 |
ret = func(opaque, bus_num, addr, class_id, vendor_id, |
| 1064 |
product_id, product_name, speed); |
| 1065 |
} |
| 1066 |
the_end:
|
| 1067 |
fclose(f); |
| 1068 |
return ret;
|
| 1069 |
} |
| 1070 |
|
| 1071 |
struct USBAutoFilter {
|
| 1072 |
struct USBAutoFilter *next;
|
| 1073 |
int bus_num;
|
| 1074 |
int addr;
|
| 1075 |
int vendor_id;
|
| 1076 |
int product_id;
|
| 1077 |
}; |
| 1078 |
|
| 1079 |
static QEMUTimer *usb_auto_timer;
|
| 1080 |
static struct USBAutoFilter *usb_auto_filter; |
| 1081 |
|
| 1082 |
static int usb_host_auto_scan(void *opaque, int bus_num, int addr, |
| 1083 |
int class_id, int vendor_id, int product_id, |
| 1084 |
const char *product_name, int speed) |
| 1085 |
{
|
| 1086 |
struct USBAutoFilter *f;
|
| 1087 |
struct USBDevice *dev;
|
| 1088 |
|
| 1089 |
/* Ignore hubs */
|
| 1090 |
if (class_id == 9) |
| 1091 |
return 0; |
| 1092 |
|
| 1093 |
for (f = usb_auto_filter; f; f = f->next) {
|
| 1094 |
if (f->bus_num >= 0 && f->bus_num != bus_num) |
| 1095 |
continue;
|
| 1096 |
|
| 1097 |
if (f->addr >= 0 && f->addr != addr) |
| 1098 |
continue;
|
| 1099 |
|
| 1100 |
if (f->vendor_id >= 0 && f->vendor_id != vendor_id) |
| 1101 |
continue;
|
| 1102 |
|
| 1103 |
if (f->product_id >= 0 && f->product_id != product_id) |
| 1104 |
continue;
|
| 1105 |
|
| 1106 |
/* We got a match */
|
| 1107 |
|
| 1108 |
/* Allredy attached ? */
|
| 1109 |
if (hostdev_find(bus_num, addr))
|
| 1110 |
return 0; |
| 1111 |
|
| 1112 |
dprintf("husb: auto open: bus_num %d addr %d\n", bus_num, addr);
|
| 1113 |
|
| 1114 |
dev = usb_host_device_open_addr(bus_num, addr, product_name); |
| 1115 |
if (dev)
|
| 1116 |
usb_device_add_dev(dev); |
| 1117 |
} |
| 1118 |
|
| 1119 |
return 0; |
| 1120 |
} |
| 1121 |
|
| 1122 |
static void usb_host_auto_timer(void *unused) |
| 1123 |
{
|
| 1124 |
usb_host_scan(NULL, usb_host_auto_scan);
|
| 1125 |
qemu_mod_timer(usb_auto_timer, qemu_get_clock(rt_clock) + 2000);
|
| 1126 |
} |
| 1127 |
|
| 1128 |
/*
|
| 1129 |
* Add autoconnect filter
|
| 1130 |
* -1 means 'any' (device, vendor, etc)
|
| 1131 |
*/
|
| 1132 |
static void usb_host_auto_add(int bus_num, int addr, int vendor_id, int product_id) |
| 1133 |
{
|
| 1134 |
struct USBAutoFilter *f = qemu_mallocz(sizeof(*f)); |
| 1135 |
if (!f) {
|
| 1136 |
fprintf(stderr, "husb: failed to allocate auto filter\n");
|
| 1137 |
return;
|
| 1138 |
} |
| 1139 |
|
| 1140 |
f->bus_num = bus_num; |
| 1141 |
f->addr = addr; |
| 1142 |
f->vendor_id = vendor_id; |
| 1143 |
f->product_id = product_id; |
| 1144 |
|
| 1145 |
if (!usb_auto_filter) {
|
| 1146 |
/*
|
| 1147 |
* First entry. Init and start the monitor.
|
| 1148 |
* Right now we're using timer to check for new devices.
|
| 1149 |
* If this turns out to be too expensive we can move that into a
|
| 1150 |
* separate thread.
|
| 1151 |
*/
|
| 1152 |
usb_auto_timer = qemu_new_timer(rt_clock, usb_host_auto_timer, NULL);
|
| 1153 |
if (!usb_auto_timer) {
|
| 1154 |
fprintf(stderr, "husb: failed to allocate auto scan timer\n");
|
| 1155 |
qemu_free(f); |
| 1156 |
return;
|
| 1157 |
} |
| 1158 |
|
| 1159 |
/* Check for new devices every two seconds */
|
| 1160 |
qemu_mod_timer(usb_auto_timer, qemu_get_clock(rt_clock) + 2000);
|
| 1161 |
} |
| 1162 |
|
| 1163 |
dprintf("husb: auto filter: bus_num %d addr %d vid %d pid %d\n",
|
| 1164 |
bus_num, addr, vendor_id, product_id); |
| 1165 |
|
| 1166 |
f->next = usb_auto_filter; |
| 1167 |
usb_auto_filter = f; |
| 1168 |
} |
| 1169 |
|
| 1170 |
typedef struct FindDeviceState { |
| 1171 |
int vendor_id;
|
| 1172 |
int product_id;
|
| 1173 |
int bus_num;
|
| 1174 |
int addr;
|
| 1175 |
char product_name[PRODUCT_NAME_SZ];
|
| 1176 |
} FindDeviceState; |
| 1177 |
|
| 1178 |
static int usb_host_find_device_scan(void *opaque, int bus_num, int addr, |
| 1179 |
int class_id,
|
| 1180 |
int vendor_id, int product_id, |
| 1181 |
const char *product_name, int speed) |
| 1182 |
{
|
| 1183 |
FindDeviceState *s = opaque; |
| 1184 |
if ((vendor_id == s->vendor_id &&
|
| 1185 |
product_id == s->product_id) || |
| 1186 |
(bus_num == s->bus_num && |
| 1187 |
addr == s->addr)) {
|
| 1188 |
pstrcpy(s->product_name, PRODUCT_NAME_SZ, product_name); |
| 1189 |
s->bus_num = bus_num; |
| 1190 |
s->addr = addr; |
| 1191 |
return 1; |
| 1192 |
} else {
|
| 1193 |
return 0; |
| 1194 |
} |
| 1195 |
} |
| 1196 |
|
| 1197 |
/* the syntax is :
|
| 1198 |
'bus.addr' (decimal numbers) or
|
| 1199 |
'vendor_id:product_id' (hexa numbers) */
|
| 1200 |
static int usb_host_find_device(int *pbus_num, int *paddr, |
| 1201 |
char *product_name, int product_name_size, |
| 1202 |
const char *devname) |
| 1203 |
{
|
| 1204 |
const char *p; |
| 1205 |
int ret;
|
| 1206 |
FindDeviceState fs; |
| 1207 |
|
| 1208 |
p = strchr(devname, '.');
|
| 1209 |
if (p) {
|
| 1210 |
*pbus_num = strtoul(devname, NULL, 0); |
| 1211 |
|
| 1212 |
if (*(p + 1) == '*') { |
| 1213 |
usb_host_auto_add(*pbus_num, -1, -1, -1); |
| 1214 |
return -1; |
| 1215 |
} |
| 1216 |
|
| 1217 |
*paddr = strtoul(p + 1, NULL, 0); |
| 1218 |
fs.bus_num = *pbus_num; |
| 1219 |
fs.addr = *paddr; |
| 1220 |
ret = usb_host_scan(&fs, usb_host_find_device_scan); |
| 1221 |
if (ret)
|
| 1222 |
pstrcpy(product_name, product_name_size, fs.product_name); |
| 1223 |
return 0; |
| 1224 |
} |
| 1225 |
p = strchr(devname, ':');
|
| 1226 |
if (p) {
|
| 1227 |
fs.vendor_id = strtoul(devname, NULL, 16); |
| 1228 |
|
| 1229 |
if (*(p + 1) == '*') { |
| 1230 |
usb_host_auto_add(-1, -1, fs.vendor_id, -1); |
| 1231 |
return -1; |
| 1232 |
} |
| 1233 |
|
| 1234 |
fs.product_id = strtoul(p + 1, NULL, 16); |
| 1235 |
ret = usb_host_scan(&fs, usb_host_find_device_scan); |
| 1236 |
if (ret) {
|
| 1237 |
*pbus_num = fs.bus_num; |
| 1238 |
*paddr = fs.addr; |
| 1239 |
pstrcpy(product_name, product_name_size, fs.product_name); |
| 1240 |
return 0; |
| 1241 |
} |
| 1242 |
} |
| 1243 |
return -1; |
| 1244 |
} |
| 1245 |
|
| 1246 |
/**********************/
|
| 1247 |
/* USB host device info */
|
| 1248 |
|
| 1249 |
struct usb_class_info {
|
| 1250 |
int class;
|
| 1251 |
const char *class_name; |
| 1252 |
}; |
| 1253 |
|
| 1254 |
static const struct usb_class_info usb_class_info[] = { |
| 1255 |
{ USB_CLASS_AUDIO, "Audio"},
|
| 1256 |
{ USB_CLASS_COMM, "Communication"},
|
| 1257 |
{ USB_CLASS_HID, "HID"},
|
| 1258 |
{ USB_CLASS_HUB, "Hub" },
|
| 1259 |
{ USB_CLASS_PHYSICAL, "Physical" },
|
| 1260 |
{ USB_CLASS_PRINTER, "Printer" },
|
| 1261 |
{ USB_CLASS_MASS_STORAGE, "Storage" },
|
| 1262 |
{ USB_CLASS_CDC_DATA, "Data" },
|
| 1263 |
{ USB_CLASS_APP_SPEC, "Application Specific" },
|
| 1264 |
{ USB_CLASS_VENDOR_SPEC, "Vendor Specific" },
|
| 1265 |
{ USB_CLASS_STILL_IMAGE, "Still Image" },
|
| 1266 |
{ USB_CLASS_CSCID, "Smart Card" },
|
| 1267 |
{ USB_CLASS_CONTENT_SEC, "Content Security" },
|
| 1268 |
{ -1, NULL }
|
| 1269 |
}; |
| 1270 |
|
| 1271 |
static const char *usb_class_str(uint8_t class) |
| 1272 |
{
|
| 1273 |
const struct usb_class_info *p; |
| 1274 |
for(p = usb_class_info; p->class != -1; p++) { |
| 1275 |
if (p->class == class)
|
| 1276 |
break;
|
| 1277 |
} |
| 1278 |
return p->class_name;
|
| 1279 |
} |
| 1280 |
|
| 1281 |
static void usb_info_device(int bus_num, int addr, int class_id, |
| 1282 |
int vendor_id, int product_id, |
| 1283 |
const char *product_name, |
| 1284 |
int speed)
|
| 1285 |
{
|
| 1286 |
const char *class_str, *speed_str; |
| 1287 |
|
| 1288 |
switch(speed) {
|
| 1289 |
case USB_SPEED_LOW:
|
| 1290 |
speed_str = "1.5";
|
| 1291 |
break;
|
| 1292 |
case USB_SPEED_FULL:
|
| 1293 |
speed_str = "12";
|
| 1294 |
break;
|
| 1295 |
case USB_SPEED_HIGH:
|
| 1296 |
speed_str = "480";
|
| 1297 |
break;
|
| 1298 |
default:
|
| 1299 |
speed_str = "?";
|
| 1300 |
break;
|
| 1301 |
} |
| 1302 |
|
| 1303 |
term_printf(" Device %d.%d, speed %s Mb/s\n",
|
| 1304 |
bus_num, addr, speed_str); |
| 1305 |
class_str = usb_class_str(class_id); |
| 1306 |
if (class_str)
|
| 1307 |
term_printf(" %s:", class_str);
|
| 1308 |
else
|
| 1309 |
term_printf(" Class %02x:", class_id);
|
| 1310 |
term_printf(" USB device %04x:%04x", vendor_id, product_id);
|
| 1311 |
if (product_name[0] != '\0') |
| 1312 |
term_printf(", %s", product_name);
|
| 1313 |
term_printf("\n");
|
| 1314 |
} |
| 1315 |
|
| 1316 |
static int usb_host_info_device(void *opaque, int bus_num, int addr, |
| 1317 |
int class_id,
|
| 1318 |
int vendor_id, int product_id, |
| 1319 |
const char *product_name, |
| 1320 |
int speed)
|
| 1321 |
{
|
| 1322 |
usb_info_device(bus_num, addr, class_id, vendor_id, product_id, |
| 1323 |
product_name, speed); |
| 1324 |
return 0; |
| 1325 |
} |
| 1326 |
|
| 1327 |
void usb_host_info(void) |
| 1328 |
{
|
| 1329 |
usb_host_scan(NULL, usb_host_info_device);
|
| 1330 |
} |
| 1331 |
|
| 1332 |
#else
|
| 1333 |
|
| 1334 |
#include "hw/usb.h" |
| 1335 |
|
| 1336 |
void usb_host_info(void) |
| 1337 |
{
|
| 1338 |
term_printf("USB host devices not supported\n");
|
| 1339 |
} |
| 1340 |
|
| 1341 |
/* XXX: modify configure to compile the right host driver */
|
| 1342 |
USBDevice *usb_host_device_open(const char *devname) |
| 1343 |
{
|
| 1344 |
return NULL; |
| 1345 |
} |
| 1346 |
|
| 1347 |
#endif
|