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/*
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* Linux host USB redirector
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*
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* Copyright (c) 2005 Fabrice Bellard
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*
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* Copyright (c) 2008 Max Krasnyansky
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* Support for host device auto connect & disconnect
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* Major rewrite to support fully async operation
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*
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* Copyright 2008 TJ <linux@tjworld.net>
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* Added flexible support for /dev/bus/usb /sys/bus/usb/devices in addition
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* to the legacy /proc/bus/usb USB device discovery and handling
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "qemu-common.h" |
34 |
#include "qemu-timer.h" |
35 |
#include "monitor.h" |
36 |
#include "sysemu.h" |
37 |
|
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#include <dirent.h> |
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#include <sys/ioctl.h> |
40 |
#include <signal.h> |
41 |
|
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#include <linux/usbdevice_fs.h> |
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#include <linux/version.h> |
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#include "hw/usb.h" |
45 |
|
46 |
/* We redefine it to avoid version problems */
|
47 |
struct usb_ctrltransfer {
|
48 |
uint8_t bRequestType; |
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uint8_t bRequest; |
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uint16_t wValue; |
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uint16_t wIndex; |
52 |
uint16_t wLength; |
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uint32_t timeout; |
54 |
void *data;
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}; |
56 |
|
57 |
struct usb_ctrlrequest {
|
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uint8_t bRequestType; |
59 |
uint8_t bRequest; |
60 |
uint16_t wValue; |
61 |
uint16_t wIndex; |
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uint16_t wLength; |
63 |
}; |
64 |
|
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typedef int USBScanFunc(void *opaque, int bus_num, int addr, int devpath, |
66 |
int class_id, int vendor_id, int product_id, |
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const char *product_name, int speed); |
68 |
|
69 |
//#define DEBUG
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70 |
|
71 |
#ifdef DEBUG
|
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#define DPRINTF printf
|
73 |
#else
|
74 |
#define DPRINTF(...)
|
75 |
#endif
|
76 |
|
77 |
#define USBDBG_DEVOPENED "husb: opened %s/devices\n" |
78 |
|
79 |
#define USBPROCBUS_PATH "/proc/bus/usb" |
80 |
#define PRODUCT_NAME_SZ 32 |
81 |
#define MAX_ENDPOINTS 15 |
82 |
#define USBDEVBUS_PATH "/dev/bus/usb" |
83 |
#define USBSYSBUS_PATH "/sys/bus/usb" |
84 |
|
85 |
static char *usb_host_device_path; |
86 |
|
87 |
#define USB_FS_NONE 0 |
88 |
#define USB_FS_PROC 1 |
89 |
#define USB_FS_DEV 2 |
90 |
#define USB_FS_SYS 3 |
91 |
|
92 |
static int usb_fs_type; |
93 |
|
94 |
/* endpoint association data */
|
95 |
#define ISO_FRAME_DESC_PER_URB 32 |
96 |
#define ISO_URB_COUNT 3 |
97 |
#define INVALID_EP_TYPE 255 |
98 |
|
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typedef struct AsyncURB AsyncURB; |
100 |
|
101 |
struct endp_data {
|
102 |
uint8_t type; |
103 |
uint8_t halted; |
104 |
uint8_t iso_started; |
105 |
AsyncURB *iso_urb; |
106 |
int iso_urb_idx;
|
107 |
int iso_buffer_used;
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int max_packet_size;
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109 |
}; |
110 |
|
111 |
enum {
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CTRL_STATE_IDLE = 0,
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CTRL_STATE_SETUP, |
114 |
CTRL_STATE_DATA, |
115 |
CTRL_STATE_ACK |
116 |
}; |
117 |
|
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/*
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* Control transfer state.
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* Note that 'buffer' _must_ follow 'req' field because
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* we need contiguous buffer when we submit control URB.
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*/
|
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struct ctrl_struct {
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uint16_t len; |
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uint16_t offset; |
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uint8_t state; |
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struct usb_ctrlrequest req;
|
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uint8_t buffer[8192];
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}; |
130 |
|
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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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uint32_t vendor_id; |
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uint32_t product_id; |
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}; |
137 |
|
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typedef struct USBHostDevice { |
139 |
USBDevice dev; |
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int fd;
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141 |
|
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uint8_t descr[1024];
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int descr_len;
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int configuration;
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int ninterfaces;
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146 |
int closing;
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Notifier exit; |
148 |
|
149 |
struct ctrl_struct ctrl;
|
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struct endp_data endp_table[MAX_ENDPOINTS];
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151 |
|
152 |
/* Host side address */
|
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int bus_num;
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int addr;
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int devpath;
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struct USBAutoFilter match;
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|
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QTAILQ_ENTRY(USBHostDevice) next; |
159 |
} USBHostDevice; |
160 |
|
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static QTAILQ_HEAD(, USBHostDevice) hostdevs = QTAILQ_HEAD_INITIALIZER(hostdevs);
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162 |
|
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static int usb_host_close(USBHostDevice *dev); |
164 |
static int parse_filter(const char *spec, struct USBAutoFilter *f); |
165 |
static void usb_host_auto_check(void *unused); |
166 |
static int usb_host_read_file(char *line, size_t line_size, |
167 |
const char *device_file, const char *device_name); |
168 |
|
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static int is_isoc(USBHostDevice *s, int ep) |
170 |
{ |
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return s->endp_table[ep - 1].type == USBDEVFS_URB_TYPE_ISO; |
172 |
} |
173 |
|
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static int is_valid(USBHostDevice *s, int ep) |
175 |
{ |
176 |
return s->endp_table[ep - 1].type != INVALID_EP_TYPE; |
177 |
} |
178 |
|
179 |
static int is_halted(USBHostDevice *s, int ep) |
180 |
{ |
181 |
return s->endp_table[ep - 1].halted; |
182 |
} |
183 |
|
184 |
static void clear_halt(USBHostDevice *s, int ep) |
185 |
{ |
186 |
s->endp_table[ep - 1].halted = 0; |
187 |
} |
188 |
|
189 |
static void set_halt(USBHostDevice *s, int ep) |
190 |
{ |
191 |
s->endp_table[ep - 1].halted = 1; |
192 |
} |
193 |
|
194 |
static int is_iso_started(USBHostDevice *s, int ep) |
195 |
{ |
196 |
return s->endp_table[ep - 1].iso_started; |
197 |
} |
198 |
|
199 |
static void clear_iso_started(USBHostDevice *s, int ep) |
200 |
{ |
201 |
s->endp_table[ep - 1].iso_started = 0; |
202 |
} |
203 |
|
204 |
static void set_iso_started(USBHostDevice *s, int ep) |
205 |
{ |
206 |
s->endp_table[ep - 1].iso_started = 1; |
207 |
} |
208 |
|
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static void set_iso_urb(USBHostDevice *s, int ep, AsyncURB *iso_urb) |
210 |
{ |
211 |
s->endp_table[ep - 1].iso_urb = iso_urb;
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} |
213 |
|
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static AsyncURB *get_iso_urb(USBHostDevice *s, int ep) |
215 |
{ |
216 |
return s->endp_table[ep - 1].iso_urb; |
217 |
} |
218 |
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static void set_iso_urb_idx(USBHostDevice *s, int ep, int i) |
220 |
{ |
221 |
s->endp_table[ep - 1].iso_urb_idx = i;
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} |
223 |
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static int get_iso_urb_idx(USBHostDevice *s, int ep) |
225 |
{ |
226 |
return s->endp_table[ep - 1].iso_urb_idx; |
227 |
} |
228 |
|
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static void set_iso_buffer_used(USBHostDevice *s, int ep, int i) |
230 |
{ |
231 |
s->endp_table[ep - 1].iso_buffer_used = i;
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232 |
} |
233 |
|
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static int get_iso_buffer_used(USBHostDevice *s, int ep) |
235 |
{ |
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return s->endp_table[ep - 1].iso_buffer_used; |
237 |
} |
238 |
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static int get_max_packet_size(USBHostDevice *s, int ep) |
240 |
{ |
241 |
return s->endp_table[ep - 1].max_packet_size; |
242 |
} |
243 |
|
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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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/* For regular async urbs */
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USBPacket *packet; |
256 |
USBHostDevice *hdev; |
257 |
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/* For buffered iso handling */
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int iso_frame_idx; /* -1 means in flight */ |
260 |
}; |
261 |
|
262 |
static AsyncURB *async_alloc(void) |
263 |
{ |
264 |
return (AsyncURB *) qemu_mallocz(sizeof(AsyncURB)); |
265 |
} |
266 |
|
267 |
static void async_free(AsyncURB *aurb) |
268 |
{ |
269 |
qemu_free(aurb); |
270 |
} |
271 |
|
272 |
static void async_complete_ctrl(USBHostDevice *s, USBPacket *p) |
273 |
{ |
274 |
switch(s->ctrl.state) {
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case CTRL_STATE_SETUP:
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if (p->len < s->ctrl.len)
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s->ctrl.len = p->len; |
278 |
s->ctrl.state = CTRL_STATE_DATA; |
279 |
p->len = 8;
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break;
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281 |
|
282 |
case CTRL_STATE_ACK:
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s->ctrl.state = CTRL_STATE_IDLE; |
284 |
p->len = 0;
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285 |
break;
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286 |
|
287 |
default:
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288 |
break;
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289 |
} |
290 |
} |
291 |
|
292 |
static void async_complete(void *opaque) |
293 |
{ |
294 |
USBHostDevice *s = opaque; |
295 |
AsyncURB *aurb; |
296 |
|
297 |
while (1) { |
298 |
USBPacket *p; |
299 |
|
300 |
int r = ioctl(s->fd, USBDEVFS_REAPURBNDELAY, &aurb);
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301 |
if (r < 0) { |
302 |
if (errno == EAGAIN) {
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303 |
return;
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304 |
} |
305 |
if (errno == ENODEV && !s->closing) {
|
306 |
printf("husb: device %d.%d disconnected\n",
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307 |
s->bus_num, s->addr); |
308 |
usb_host_close(s); |
309 |
usb_host_auto_check(NULL);
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310 |
return;
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311 |
} |
312 |
|
313 |
DPRINTF("husb: async. reap urb failed errno %d\n", errno);
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314 |
return;
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315 |
} |
316 |
|
317 |
DPRINTF("husb: async completed. aurb %p status %d alen %d\n",
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318 |
aurb, aurb->urb.status, aurb->urb.actual_length); |
319 |
|
320 |
/* If this is a buffered iso urb mark it as complete and don't do
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321 |
anything else (it is handled further in usb_host_handle_iso_data) */
|
322 |
if (aurb->iso_frame_idx == -1) { |
323 |
if (aurb->urb.status == -EPIPE) {
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324 |
set_halt(s, aurb->urb.endpoint & 0xf);
|
325 |
} |
326 |
aurb->iso_frame_idx = 0;
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327 |
continue;
|
328 |
} |
329 |
|
330 |
p = aurb->packet; |
331 |
|
332 |
if (p) {
|
333 |
switch (aurb->urb.status) {
|
334 |
case 0: |
335 |
p->len = aurb->urb.actual_length; |
336 |
if (aurb->urb.type == USBDEVFS_URB_TYPE_CONTROL) {
|
337 |
async_complete_ctrl(s, p); |
338 |
} |
339 |
break;
|
340 |
|
341 |
case -EPIPE:
|
342 |
set_halt(s, p->devep); |
343 |
p->len = USB_RET_STALL; |
344 |
break;
|
345 |
|
346 |
default:
|
347 |
p->len = USB_RET_NAK; |
348 |
break;
|
349 |
} |
350 |
|
351 |
usb_packet_complete(&s->dev, p); |
352 |
} |
353 |
|
354 |
async_free(aurb); |
355 |
} |
356 |
} |
357 |
|
358 |
static void async_cancel(USBPacket *unused, void *opaque) |
359 |
{ |
360 |
AsyncURB *aurb = opaque; |
361 |
USBHostDevice *s = aurb->hdev; |
362 |
|
363 |
DPRINTF("husb: async cancel. aurb %p\n", aurb);
|
364 |
|
365 |
/* Mark it as dead (see async_complete above) */
|
366 |
aurb->packet = NULL;
|
367 |
|
368 |
int r = ioctl(s->fd, USBDEVFS_DISCARDURB, aurb);
|
369 |
if (r < 0) { |
370 |
DPRINTF("husb: async. discard urb failed errno %d\n", errno);
|
371 |
} |
372 |
} |
373 |
|
374 |
static int usb_host_claim_interfaces(USBHostDevice *dev, int configuration) |
375 |
{ |
376 |
int dev_descr_len, config_descr_len;
|
377 |
int interface, nb_interfaces;
|
378 |
int ret, i;
|
379 |
|
380 |
if (configuration == 0) /* address state - ignore */ |
381 |
return 1; |
382 |
|
383 |
DPRINTF("husb: claiming interfaces. config %d\n", configuration);
|
384 |
|
385 |
i = 0;
|
386 |
dev_descr_len = dev->descr[0];
|
387 |
if (dev_descr_len > dev->descr_len) {
|
388 |
goto fail;
|
389 |
} |
390 |
|
391 |
i += dev_descr_len; |
392 |
while (i < dev->descr_len) {
|
393 |
DPRINTF("husb: i is %d, descr_len is %d, dl %d, dt %d\n",
|
394 |
i, dev->descr_len, |
395 |
dev->descr[i], dev->descr[i+1]);
|
396 |
|
397 |
if (dev->descr[i+1] != USB_DT_CONFIG) { |
398 |
i += dev->descr[i]; |
399 |
continue;
|
400 |
} |
401 |
config_descr_len = dev->descr[i]; |
402 |
|
403 |
printf("husb: config #%d need %d\n", dev->descr[i + 5], configuration); |
404 |
|
405 |
if (configuration < 0 || configuration == dev->descr[i + 5]) { |
406 |
configuration = dev->descr[i + 5];
|
407 |
break;
|
408 |
} |
409 |
|
410 |
i += config_descr_len; |
411 |
} |
412 |
|
413 |
if (i >= dev->descr_len) {
|
414 |
fprintf(stderr, |
415 |
"husb: update iface failed. no matching configuration\n");
|
416 |
goto fail;
|
417 |
} |
418 |
nb_interfaces = dev->descr[i + 4];
|
419 |
|
420 |
#ifdef USBDEVFS_DISCONNECT
|
421 |
/* earlier Linux 2.4 do not support that */
|
422 |
{ |
423 |
struct usbdevfs_ioctl ctrl;
|
424 |
for (interface = 0; interface < nb_interfaces; interface++) { |
425 |
ctrl.ioctl_code = USBDEVFS_DISCONNECT; |
426 |
ctrl.ifno = interface; |
427 |
ctrl.data = 0;
|
428 |
ret = ioctl(dev->fd, USBDEVFS_IOCTL, &ctrl); |
429 |
if (ret < 0 && errno != ENODATA) { |
430 |
perror("USBDEVFS_DISCONNECT");
|
431 |
goto fail;
|
432 |
} |
433 |
} |
434 |
} |
435 |
#endif
|
436 |
|
437 |
/* XXX: only grab if all interfaces are free */
|
438 |
for (interface = 0; interface < nb_interfaces; interface++) { |
439 |
ret = ioctl(dev->fd, USBDEVFS_CLAIMINTERFACE, &interface); |
440 |
if (ret < 0) { |
441 |
if (errno == EBUSY) {
|
442 |
printf("husb: update iface. device already grabbed\n");
|
443 |
} else {
|
444 |
perror("husb: failed to claim interface");
|
445 |
} |
446 |
fail:
|
447 |
return 0; |
448 |
} |
449 |
} |
450 |
|
451 |
printf("husb: %d interfaces claimed for configuration %d\n",
|
452 |
nb_interfaces, configuration); |
453 |
|
454 |
dev->ninterfaces = nb_interfaces; |
455 |
dev->configuration = configuration; |
456 |
return 1; |
457 |
} |
458 |
|
459 |
static int usb_host_release_interfaces(USBHostDevice *s) |
460 |
{ |
461 |
int ret, i;
|
462 |
|
463 |
DPRINTF("husb: releasing interfaces\n");
|
464 |
|
465 |
for (i = 0; i < s->ninterfaces; i++) { |
466 |
ret = ioctl(s->fd, USBDEVFS_RELEASEINTERFACE, &i); |
467 |
if (ret < 0) { |
468 |
perror("husb: failed to release interface");
|
469 |
return 0; |
470 |
} |
471 |
} |
472 |
|
473 |
return 1; |
474 |
} |
475 |
|
476 |
static void usb_host_handle_reset(USBDevice *dev) |
477 |
{ |
478 |
USBHostDevice *s = DO_UPCAST(USBHostDevice, dev, dev); |
479 |
|
480 |
DPRINTF("husb: reset device %u.%u\n", s->bus_num, s->addr);
|
481 |
|
482 |
ioctl(s->fd, USBDEVFS_RESET); |
483 |
|
484 |
usb_host_claim_interfaces(s, s->configuration); |
485 |
} |
486 |
|
487 |
static void usb_host_handle_destroy(USBDevice *dev) |
488 |
{ |
489 |
USBHostDevice *s = (USBHostDevice *)dev; |
490 |
|
491 |
usb_host_close(s); |
492 |
QTAILQ_REMOVE(&hostdevs, s, next); |
493 |
qemu_remove_exit_notifier(&s->exit); |
494 |
} |
495 |
|
496 |
static int usb_linux_update_endp_table(USBHostDevice *s); |
497 |
|
498 |
/* iso data is special, we need to keep enough urbs in flight to make sure
|
499 |
that the controller never runs out of them, otherwise the device will
|
500 |
likely suffer a buffer underrun / overrun. */
|
501 |
static AsyncURB *usb_host_alloc_iso(USBHostDevice *s, uint8_t ep, int in) |
502 |
{ |
503 |
AsyncURB *aurb; |
504 |
int i, j, len = get_max_packet_size(s, ep);
|
505 |
|
506 |
aurb = qemu_mallocz(ISO_URB_COUNT * sizeof(*aurb));
|
507 |
for (i = 0; i < ISO_URB_COUNT; i++) { |
508 |
aurb[i].urb.endpoint = ep; |
509 |
aurb[i].urb.buffer_length = ISO_FRAME_DESC_PER_URB * len; |
510 |
aurb[i].urb.buffer = qemu_malloc(aurb[i].urb.buffer_length); |
511 |
aurb[i].urb.type = USBDEVFS_URB_TYPE_ISO; |
512 |
aurb[i].urb.flags = USBDEVFS_URB_ISO_ASAP; |
513 |
aurb[i].urb.number_of_packets = ISO_FRAME_DESC_PER_URB; |
514 |
for (j = 0 ; j < ISO_FRAME_DESC_PER_URB; j++) |
515 |
aurb[i].urb.iso_frame_desc[j].length = len; |
516 |
if (in) {
|
517 |
aurb[i].urb.endpoint |= 0x80;
|
518 |
/* Mark as fully consumed (idle) */
|
519 |
aurb[i].iso_frame_idx = ISO_FRAME_DESC_PER_URB; |
520 |
} |
521 |
} |
522 |
set_iso_urb(s, ep, aurb); |
523 |
|
524 |
return aurb;
|
525 |
} |
526 |
|
527 |
static void usb_host_stop_n_free_iso(USBHostDevice *s, uint8_t ep) |
528 |
{ |
529 |
AsyncURB *aurb; |
530 |
int i, ret, killed = 0, free = 1; |
531 |
|
532 |
aurb = get_iso_urb(s, ep); |
533 |
if (!aurb) {
|
534 |
return;
|
535 |
} |
536 |
|
537 |
for (i = 0; i < ISO_URB_COUNT; i++) { |
538 |
/* in flight? */
|
539 |
if (aurb[i].iso_frame_idx == -1) { |
540 |
ret = ioctl(s->fd, USBDEVFS_DISCARDURB, &aurb[i]); |
541 |
if (ret < 0) { |
542 |
printf("husb: discard isoc in urb failed errno %d\n", errno);
|
543 |
free = 0;
|
544 |
continue;
|
545 |
} |
546 |
killed++; |
547 |
} |
548 |
} |
549 |
|
550 |
/* Make sure any urbs we've killed are reaped before we free them */
|
551 |
if (killed) {
|
552 |
async_complete(s); |
553 |
} |
554 |
|
555 |
for (i = 0; i < ISO_URB_COUNT; i++) { |
556 |
qemu_free(aurb[i].urb.buffer); |
557 |
} |
558 |
|
559 |
if (free)
|
560 |
qemu_free(aurb); |
561 |
else
|
562 |
printf("husb: leaking iso urbs because of discard failure\n");
|
563 |
set_iso_urb(s, ep, NULL);
|
564 |
set_iso_urb_idx(s, ep, 0);
|
565 |
clear_iso_started(s, ep); |
566 |
} |
567 |
|
568 |
static int urb_status_to_usb_ret(int status) |
569 |
{ |
570 |
switch (status) {
|
571 |
case -EPIPE:
|
572 |
return USB_RET_STALL;
|
573 |
default:
|
574 |
return USB_RET_NAK;
|
575 |
} |
576 |
} |
577 |
|
578 |
static int usb_host_handle_iso_data(USBHostDevice *s, USBPacket *p, int in) |
579 |
{ |
580 |
AsyncURB *aurb; |
581 |
int i, j, ret, max_packet_size, offset, len = 0; |
582 |
|
583 |
max_packet_size = get_max_packet_size(s, p->devep); |
584 |
if (max_packet_size == 0) |
585 |
return USB_RET_NAK;
|
586 |
|
587 |
aurb = get_iso_urb(s, p->devep); |
588 |
if (!aurb) {
|
589 |
aurb = usb_host_alloc_iso(s, p->devep, in); |
590 |
} |
591 |
|
592 |
i = get_iso_urb_idx(s, p->devep); |
593 |
j = aurb[i].iso_frame_idx; |
594 |
if (j >= 0 && j < ISO_FRAME_DESC_PER_URB) { |
595 |
if (in) {
|
596 |
/* Check urb status */
|
597 |
if (aurb[i].urb.status) {
|
598 |
len = urb_status_to_usb_ret(aurb[i].urb.status); |
599 |
/* Move to the next urb */
|
600 |
aurb[i].iso_frame_idx = ISO_FRAME_DESC_PER_URB - 1;
|
601 |
/* Check frame status */
|
602 |
} else if (aurb[i].urb.iso_frame_desc[j].status) { |
603 |
len = urb_status_to_usb_ret( |
604 |
aurb[i].urb.iso_frame_desc[j].status); |
605 |
/* Check the frame fits */
|
606 |
} else if (aurb[i].urb.iso_frame_desc[j].actual_length > p->len) { |
607 |
printf("husb: received iso data is larger then packet\n");
|
608 |
len = USB_RET_NAK; |
609 |
/* All good copy data over */
|
610 |
} else {
|
611 |
len = aurb[i].urb.iso_frame_desc[j].actual_length; |
612 |
memcpy(p->data, |
613 |
aurb[i].urb.buffer + |
614 |
j * aurb[i].urb.iso_frame_desc[0].length,
|
615 |
len); |
616 |
} |
617 |
} else {
|
618 |
len = p->len; |
619 |
offset = (j == 0) ? 0 : get_iso_buffer_used(s, p->devep); |
620 |
|
621 |
/* Check the frame fits */
|
622 |
if (len > max_packet_size) {
|
623 |
printf("husb: send iso data is larger then max packet size\n");
|
624 |
return USB_RET_NAK;
|
625 |
} |
626 |
|
627 |
/* All good copy data over */
|
628 |
memcpy(aurb[i].urb.buffer + offset, p->data, len); |
629 |
aurb[i].urb.iso_frame_desc[j].length = len; |
630 |
offset += len; |
631 |
set_iso_buffer_used(s, p->devep, offset); |
632 |
|
633 |
/* Start the stream once we have buffered enough data */
|
634 |
if (!is_iso_started(s, p->devep) && i == 1 && j == 8) { |
635 |
set_iso_started(s, p->devep); |
636 |
} |
637 |
} |
638 |
aurb[i].iso_frame_idx++; |
639 |
if (aurb[i].iso_frame_idx == ISO_FRAME_DESC_PER_URB) {
|
640 |
i = (i + 1) % ISO_URB_COUNT;
|
641 |
set_iso_urb_idx(s, p->devep, i); |
642 |
} |
643 |
} else {
|
644 |
if (in) {
|
645 |
set_iso_started(s, p->devep); |
646 |
} else {
|
647 |
DPRINTF("hubs: iso out error no free buffer, dropping packet\n");
|
648 |
} |
649 |
} |
650 |
|
651 |
if (is_iso_started(s, p->devep)) {
|
652 |
/* (Re)-submit all fully consumed / filled urbs */
|
653 |
for (i = 0; i < ISO_URB_COUNT; i++) { |
654 |
if (aurb[i].iso_frame_idx == ISO_FRAME_DESC_PER_URB) {
|
655 |
ret = ioctl(s->fd, USBDEVFS_SUBMITURB, &aurb[i]); |
656 |
if (ret < 0) { |
657 |
printf("husb error submitting iso urb %d: %d\n", i, errno);
|
658 |
if (!in || len == 0) { |
659 |
switch(errno) {
|
660 |
case ETIMEDOUT:
|
661 |
len = USB_RET_NAK; |
662 |
break;
|
663 |
case EPIPE:
|
664 |
default:
|
665 |
len = USB_RET_STALL; |
666 |
} |
667 |
} |
668 |
break;
|
669 |
} |
670 |
aurb[i].iso_frame_idx = -1;
|
671 |
} |
672 |
} |
673 |
} |
674 |
|
675 |
return len;
|
676 |
} |
677 |
|
678 |
static int usb_host_handle_data(USBHostDevice *s, USBPacket *p) |
679 |
{ |
680 |
struct usbdevfs_urb *urb;
|
681 |
AsyncURB *aurb; |
682 |
int ret;
|
683 |
uint8_t ep; |
684 |
|
685 |
if (!is_valid(s, p->devep)) {
|
686 |
return USB_RET_NAK;
|
687 |
} |
688 |
|
689 |
if (p->pid == USB_TOKEN_IN) {
|
690 |
ep = p->devep | 0x80;
|
691 |
} else {
|
692 |
ep = p->devep; |
693 |
} |
694 |
|
695 |
if (is_halted(s, p->devep)) {
|
696 |
ret = ioctl(s->fd, USBDEVFS_CLEAR_HALT, &ep); |
697 |
if (ret < 0) { |
698 |
DPRINTF("husb: failed to clear halt. ep 0x%x errno %d\n",
|
699 |
ep, errno); |
700 |
return USB_RET_NAK;
|
701 |
} |
702 |
clear_halt(s, p->devep); |
703 |
} |
704 |
|
705 |
if (is_isoc(s, p->devep)) {
|
706 |
return usb_host_handle_iso_data(s, p, p->pid == USB_TOKEN_IN);
|
707 |
} |
708 |
|
709 |
aurb = async_alloc(); |
710 |
aurb->hdev = s; |
711 |
aurb->packet = p; |
712 |
|
713 |
urb = &aurb->urb; |
714 |
|
715 |
urb->endpoint = ep; |
716 |
urb->buffer = p->data; |
717 |
urb->buffer_length = p->len; |
718 |
urb->type = USBDEVFS_URB_TYPE_BULK; |
719 |
urb->usercontext = s; |
720 |
|
721 |
ret = ioctl(s->fd, USBDEVFS_SUBMITURB, urb); |
722 |
|
723 |
DPRINTF("husb: data submit. ep 0x%x len %u aurb %p\n",
|
724 |
urb->endpoint, p->len, aurb); |
725 |
|
726 |
if (ret < 0) { |
727 |
DPRINTF("husb: submit failed. errno %d\n", errno);
|
728 |
async_free(aurb); |
729 |
|
730 |
switch(errno) {
|
731 |
case ETIMEDOUT:
|
732 |
return USB_RET_NAK;
|
733 |
case EPIPE:
|
734 |
default:
|
735 |
return USB_RET_STALL;
|
736 |
} |
737 |
} |
738 |
|
739 |
usb_defer_packet(p, async_cancel, aurb); |
740 |
return USB_RET_ASYNC;
|
741 |
} |
742 |
|
743 |
static int ctrl_error(void) |
744 |
{ |
745 |
if (errno == ETIMEDOUT) {
|
746 |
return USB_RET_NAK;
|
747 |
} else {
|
748 |
return USB_RET_STALL;
|
749 |
} |
750 |
} |
751 |
|
752 |
static int usb_host_set_address(USBHostDevice *s, int addr) |
753 |
{ |
754 |
DPRINTF("husb: ctrl set addr %u\n", addr);
|
755 |
s->dev.addr = addr; |
756 |
return 0; |
757 |
} |
758 |
|
759 |
static int usb_host_set_config(USBHostDevice *s, int config) |
760 |
{ |
761 |
usb_host_release_interfaces(s); |
762 |
|
763 |
int ret = ioctl(s->fd, USBDEVFS_SETCONFIGURATION, &config);
|
764 |
|
765 |
DPRINTF("husb: ctrl set config %d ret %d errno %d\n", config, ret, errno);
|
766 |
|
767 |
if (ret < 0) { |
768 |
return ctrl_error();
|
769 |
} |
770 |
usb_host_claim_interfaces(s, config); |
771 |
return 0; |
772 |
} |
773 |
|
774 |
static int usb_host_set_interface(USBHostDevice *s, int iface, int alt) |
775 |
{ |
776 |
struct usbdevfs_setinterface si;
|
777 |
int i, ret;
|
778 |
|
779 |
for (i = 1; i <= MAX_ENDPOINTS; i++) { |
780 |
if (is_isoc(s, i)) {
|
781 |
usb_host_stop_n_free_iso(s, i); |
782 |
} |
783 |
} |
784 |
|
785 |
si.interface = iface; |
786 |
si.altsetting = alt; |
787 |
ret = ioctl(s->fd, USBDEVFS_SETINTERFACE, &si); |
788 |
|
789 |
DPRINTF("husb: ctrl set iface %d altset %d ret %d errno %d\n",
|
790 |
iface, alt, ret, errno); |
791 |
|
792 |
if (ret < 0) { |
793 |
return ctrl_error();
|
794 |
} |
795 |
usb_linux_update_endp_table(s); |
796 |
return 0; |
797 |
} |
798 |
|
799 |
static int usb_host_handle_control(USBHostDevice *s, USBPacket *p) |
800 |
{ |
801 |
struct usbdevfs_urb *urb;
|
802 |
AsyncURB *aurb; |
803 |
int ret, value, index;
|
804 |
int buffer_len;
|
805 |
|
806 |
/*
|
807 |
* Process certain standard device requests.
|
808 |
* These are infrequent and are processed synchronously.
|
809 |
*/
|
810 |
value = le16_to_cpu(s->ctrl.req.wValue); |
811 |
index = le16_to_cpu(s->ctrl.req.wIndex); |
812 |
|
813 |
DPRINTF("husb: ctrl type 0x%x req 0x%x val 0x%x index %u len %u\n",
|
814 |
s->ctrl.req.bRequestType, s->ctrl.req.bRequest, value, index, |
815 |
s->ctrl.len); |
816 |
|
817 |
if (s->ctrl.req.bRequestType == 0) { |
818 |
switch (s->ctrl.req.bRequest) {
|
819 |
case USB_REQ_SET_ADDRESS:
|
820 |
return usb_host_set_address(s, value);
|
821 |
|
822 |
case USB_REQ_SET_CONFIGURATION:
|
823 |
return usb_host_set_config(s, value & 0xff); |
824 |
} |
825 |
} |
826 |
|
827 |
if (s->ctrl.req.bRequestType == 1 && |
828 |
s->ctrl.req.bRequest == USB_REQ_SET_INTERFACE) { |
829 |
return usb_host_set_interface(s, index, value);
|
830 |
} |
831 |
|
832 |
/* The rest are asynchronous */
|
833 |
|
834 |
buffer_len = 8 + s->ctrl.len;
|
835 |
if (buffer_len > sizeof(s->ctrl.buffer)) { |
836 |
fprintf(stderr, "husb: ctrl buffer too small (%u > %zu)\n",
|
837 |
buffer_len, sizeof(s->ctrl.buffer));
|
838 |
return USB_RET_STALL;
|
839 |
} |
840 |
|
841 |
aurb = async_alloc(); |
842 |
aurb->hdev = s; |
843 |
aurb->packet = p; |
844 |
|
845 |
/*
|
846 |
* Setup ctrl transfer.
|
847 |
*
|
848 |
* s->ctrl is laid out such that data buffer immediately follows
|
849 |
* 'req' struct which is exactly what usbdevfs expects.
|
850 |
*/
|
851 |
urb = &aurb->urb; |
852 |
|
853 |
urb->type = USBDEVFS_URB_TYPE_CONTROL; |
854 |
urb->endpoint = p->devep; |
855 |
|
856 |
urb->buffer = &s->ctrl.req; |
857 |
urb->buffer_length = buffer_len; |
858 |
|
859 |
urb->usercontext = s; |
860 |
|
861 |
ret = ioctl(s->fd, USBDEVFS_SUBMITURB, urb); |
862 |
|
863 |
DPRINTF("husb: submit ctrl. len %u aurb %p\n", urb->buffer_length, aurb);
|
864 |
|
865 |
if (ret < 0) { |
866 |
DPRINTF("husb: submit failed. errno %d\n", errno);
|
867 |
async_free(aurb); |
868 |
|
869 |
switch(errno) {
|
870 |
case ETIMEDOUT:
|
871 |
return USB_RET_NAK;
|
872 |
case EPIPE:
|
873 |
default:
|
874 |
return USB_RET_STALL;
|
875 |
} |
876 |
} |
877 |
|
878 |
usb_defer_packet(p, async_cancel, aurb); |
879 |
return USB_RET_ASYNC;
|
880 |
} |
881 |
|
882 |
static int do_token_setup(USBDevice *dev, USBPacket *p) |
883 |
{ |
884 |
USBHostDevice *s = (USBHostDevice *) dev; |
885 |
int ret = 0; |
886 |
|
887 |
if (p->len != 8) { |
888 |
return USB_RET_STALL;
|
889 |
} |
890 |
|
891 |
memcpy(&s->ctrl.req, p->data, 8);
|
892 |
s->ctrl.len = le16_to_cpu(s->ctrl.req.wLength); |
893 |
s->ctrl.offset = 0;
|
894 |
s->ctrl.state = CTRL_STATE_SETUP; |
895 |
|
896 |
if (s->ctrl.req.bRequestType & USB_DIR_IN) {
|
897 |
ret = usb_host_handle_control(s, p); |
898 |
if (ret < 0) { |
899 |
return ret;
|
900 |
} |
901 |
|
902 |
if (ret < s->ctrl.len) {
|
903 |
s->ctrl.len = ret; |
904 |
} |
905 |
s->ctrl.state = CTRL_STATE_DATA; |
906 |
} else {
|
907 |
if (s->ctrl.len == 0) { |
908 |
s->ctrl.state = CTRL_STATE_ACK; |
909 |
} else {
|
910 |
s->ctrl.state = CTRL_STATE_DATA; |
911 |
} |
912 |
} |
913 |
|
914 |
return ret;
|
915 |
} |
916 |
|
917 |
static int do_token_in(USBDevice *dev, USBPacket *p) |
918 |
{ |
919 |
USBHostDevice *s = (USBHostDevice *) dev; |
920 |
int ret = 0; |
921 |
|
922 |
if (p->devep != 0) { |
923 |
return usb_host_handle_data(s, p);
|
924 |
} |
925 |
|
926 |
switch(s->ctrl.state) {
|
927 |
case CTRL_STATE_ACK:
|
928 |
if (!(s->ctrl.req.bRequestType & USB_DIR_IN)) {
|
929 |
ret = usb_host_handle_control(s, p); |
930 |
if (ret == USB_RET_ASYNC) {
|
931 |
return USB_RET_ASYNC;
|
932 |
} |
933 |
s->ctrl.state = CTRL_STATE_IDLE; |
934 |
return ret > 0 ? 0 : ret; |
935 |
} |
936 |
|
937 |
return 0; |
938 |
|
939 |
case CTRL_STATE_DATA:
|
940 |
if (s->ctrl.req.bRequestType & USB_DIR_IN) {
|
941 |
int len = s->ctrl.len - s->ctrl.offset;
|
942 |
if (len > p->len) {
|
943 |
len = p->len; |
944 |
} |
945 |
memcpy(p->data, s->ctrl.buffer + s->ctrl.offset, len); |
946 |
s->ctrl.offset += len; |
947 |
if (s->ctrl.offset >= s->ctrl.len) {
|
948 |
s->ctrl.state = CTRL_STATE_ACK; |
949 |
} |
950 |
return len;
|
951 |
} |
952 |
|
953 |
s->ctrl.state = CTRL_STATE_IDLE; |
954 |
return USB_RET_STALL;
|
955 |
|
956 |
default:
|
957 |
return USB_RET_STALL;
|
958 |
} |
959 |
} |
960 |
|
961 |
static int do_token_out(USBDevice *dev, USBPacket *p) |
962 |
{ |
963 |
USBHostDevice *s = (USBHostDevice *) dev; |
964 |
|
965 |
if (p->devep != 0) { |
966 |
return usb_host_handle_data(s, p);
|
967 |
} |
968 |
|
969 |
switch(s->ctrl.state) {
|
970 |
case CTRL_STATE_ACK:
|
971 |
if (s->ctrl.req.bRequestType & USB_DIR_IN) {
|
972 |
s->ctrl.state = CTRL_STATE_IDLE; |
973 |
/* transfer OK */
|
974 |
} else {
|
975 |
/* ignore additional output */
|
976 |
} |
977 |
return 0; |
978 |
|
979 |
case CTRL_STATE_DATA:
|
980 |
if (!(s->ctrl.req.bRequestType & USB_DIR_IN)) {
|
981 |
int len = s->ctrl.len - s->ctrl.offset;
|
982 |
if (len > p->len) {
|
983 |
len = p->len; |
984 |
} |
985 |
memcpy(s->ctrl.buffer + s->ctrl.offset, p->data, len); |
986 |
s->ctrl.offset += len; |
987 |
if (s->ctrl.offset >= s->ctrl.len) {
|
988 |
s->ctrl.state = CTRL_STATE_ACK; |
989 |
} |
990 |
return len;
|
991 |
} |
992 |
|
993 |
s->ctrl.state = CTRL_STATE_IDLE; |
994 |
return USB_RET_STALL;
|
995 |
|
996 |
default:
|
997 |
return USB_RET_STALL;
|
998 |
} |
999 |
} |
1000 |
|
1001 |
/*
|
1002 |
* Packet handler.
|
1003 |
* Called by the HC (host controller).
|
1004 |
*
|
1005 |
* Returns length of the transaction or one of the USB_RET_XXX codes.
|
1006 |
*/
|
1007 |
static int usb_host_handle_packet(USBDevice *s, USBPacket *p) |
1008 |
{ |
1009 |
switch(p->pid) {
|
1010 |
case USB_MSG_ATTACH:
|
1011 |
s->state = USB_STATE_ATTACHED; |
1012 |
return 0; |
1013 |
|
1014 |
case USB_MSG_DETACH:
|
1015 |
s->state = USB_STATE_NOTATTACHED; |
1016 |
return 0; |
1017 |
|
1018 |
case USB_MSG_RESET:
|
1019 |
s->remote_wakeup = 0;
|
1020 |
s->addr = 0;
|
1021 |
s->state = USB_STATE_DEFAULT; |
1022 |
s->info->handle_reset(s); |
1023 |
return 0; |
1024 |
} |
1025 |
|
1026 |
/* Rest of the PIDs must match our address */
|
1027 |
if (s->state < USB_STATE_DEFAULT || p->devaddr != s->addr) {
|
1028 |
return USB_RET_NODEV;
|
1029 |
} |
1030 |
|
1031 |
switch (p->pid) {
|
1032 |
case USB_TOKEN_SETUP:
|
1033 |
return do_token_setup(s, p);
|
1034 |
|
1035 |
case USB_TOKEN_IN:
|
1036 |
return do_token_in(s, p);
|
1037 |
|
1038 |
case USB_TOKEN_OUT:
|
1039 |
return do_token_out(s, p);
|
1040 |
|
1041 |
default:
|
1042 |
return USB_RET_STALL;
|
1043 |
} |
1044 |
} |
1045 |
|
1046 |
static int usb_linux_get_configuration(USBHostDevice *s) |
1047 |
{ |
1048 |
uint8_t configuration; |
1049 |
struct usb_ctrltransfer ct;
|
1050 |
int ret;
|
1051 |
|
1052 |
if (usb_fs_type == USB_FS_SYS) {
|
1053 |
char device_name[32], line[1024]; |
1054 |
int configuration;
|
1055 |
|
1056 |
sprintf(device_name, "%d-%d", s->bus_num, s->devpath);
|
1057 |
|
1058 |
if (!usb_host_read_file(line, sizeof(line), "bConfigurationValue", |
1059 |
device_name)) { |
1060 |
goto usbdevfs;
|
1061 |
} |
1062 |
if (sscanf(line, "%d", &configuration) != 1) { |
1063 |
goto usbdevfs;
|
1064 |
} |
1065 |
return configuration;
|
1066 |
} |
1067 |
|
1068 |
usbdevfs:
|
1069 |
ct.bRequestType = USB_DIR_IN; |
1070 |
ct.bRequest = USB_REQ_GET_CONFIGURATION; |
1071 |
ct.wValue = 0;
|
1072 |
ct.wIndex = 0;
|
1073 |
ct.wLength = 1;
|
1074 |
ct.data = &configuration; |
1075 |
ct.timeout = 50;
|
1076 |
|
1077 |
ret = ioctl(s->fd, USBDEVFS_CONTROL, &ct); |
1078 |
if (ret < 0) { |
1079 |
perror("usb_linux_get_configuration");
|
1080 |
return -1; |
1081 |
} |
1082 |
|
1083 |
/* in address state */
|
1084 |
if (configuration == 0) { |
1085 |
return -1; |
1086 |
} |
1087 |
|
1088 |
return configuration;
|
1089 |
} |
1090 |
|
1091 |
static uint8_t usb_linux_get_alt_setting(USBHostDevice *s,
|
1092 |
uint8_t configuration, uint8_t interface) |
1093 |
{ |
1094 |
uint8_t alt_setting; |
1095 |
struct usb_ctrltransfer ct;
|
1096 |
int ret;
|
1097 |
|
1098 |
if (usb_fs_type == USB_FS_SYS) {
|
1099 |
char device_name[64], line[1024]; |
1100 |
int alt_setting;
|
1101 |
|
1102 |
sprintf(device_name, "%d-%d:%d.%d", s->bus_num, s->devpath,
|
1103 |
(int)configuration, (int)interface); |
1104 |
|
1105 |
if (!usb_host_read_file(line, sizeof(line), "bAlternateSetting", |
1106 |
device_name)) { |
1107 |
goto usbdevfs;
|
1108 |
} |
1109 |
if (sscanf(line, "%d", &alt_setting) != 1) { |
1110 |
goto usbdevfs;
|
1111 |
} |
1112 |
return alt_setting;
|
1113 |
} |
1114 |
|
1115 |
usbdevfs:
|
1116 |
ct.bRequestType = USB_DIR_IN | USB_RECIP_INTERFACE; |
1117 |
ct.bRequest = USB_REQ_GET_INTERFACE; |
1118 |
ct.wValue = 0;
|
1119 |
ct.wIndex = interface; |
1120 |
ct.wLength = 1;
|
1121 |
ct.data = &alt_setting; |
1122 |
ct.timeout = 50;
|
1123 |
ret = ioctl(s->fd, USBDEVFS_CONTROL, &ct); |
1124 |
if (ret < 0) { |
1125 |
/* Assume alt 0 on error */
|
1126 |
return 0; |
1127 |
} |
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, configuration, alt_interface; |
1137 |
int interface, length, i;
|
1138 |
|
1139 |
for (i = 0; i < MAX_ENDPOINTS; i++) |
1140 |
s->endp_table[i].type = INVALID_EP_TYPE; |
1141 |
|
1142 |
i = usb_linux_get_configuration(s); |
1143 |
if (i < 0) |
1144 |
return 1; |
1145 |
configuration = i; |
1146 |
|
1147 |
/* get the desired configuration, interface, and endpoint descriptors
|
1148 |
* from device description */
|
1149 |
descriptors = &s->descr[18];
|
1150 |
length = s->descr_len - 18;
|
1151 |
i = 0;
|
1152 |
|
1153 |
if (descriptors[i + 1] != USB_DT_CONFIG || |
1154 |
descriptors[i + 5] != configuration) {
|
1155 |
DPRINTF("invalid descriptor data - configuration\n");
|
1156 |
return 1; |
1157 |
} |
1158 |
i += descriptors[i]; |
1159 |
|
1160 |
while (i < length) {
|
1161 |
if (descriptors[i + 1] != USB_DT_INTERFACE || |
1162 |
(descriptors[i + 1] == USB_DT_INTERFACE &&
|
1163 |
descriptors[i + 4] == 0)) { |
1164 |
i += descriptors[i]; |
1165 |
continue;
|
1166 |
} |
1167 |
|
1168 |
interface = descriptors[i + 2];
|
1169 |
alt_interface = usb_linux_get_alt_setting(s, configuration, interface); |
1170 |
|
1171 |
/* the current interface descriptor is the active interface
|
1172 |
* and has endpoints */
|
1173 |
if (descriptors[i + 3] != alt_interface) { |
1174 |
i += descriptors[i]; |
1175 |
continue;
|
1176 |
} |
1177 |
|
1178 |
/* advance to the endpoints */
|
1179 |
while (i < length && descriptors[i +1] != USB_DT_ENDPOINT) { |
1180 |
i += descriptors[i]; |
1181 |
} |
1182 |
|
1183 |
if (i >= length)
|
1184 |
break;
|
1185 |
|
1186 |
while (i < length) {
|
1187 |
if (descriptors[i + 1] != USB_DT_ENDPOINT) { |
1188 |
break;
|
1189 |
} |
1190 |
|
1191 |
devep = descriptors[i + 2];
|
1192 |
switch (descriptors[i + 3] & 0x3) { |
1193 |
case 0x00: |
1194 |
type = USBDEVFS_URB_TYPE_CONTROL; |
1195 |
break;
|
1196 |
case 0x01: |
1197 |
type = USBDEVFS_URB_TYPE_ISO; |
1198 |
s->endp_table[(devep & 0xf) - 1].max_packet_size = |
1199 |
descriptors[i + 4] + (descriptors[i + 5] << 8); |
1200 |
break;
|
1201 |
case 0x02: |
1202 |
type = USBDEVFS_URB_TYPE_BULK; |
1203 |
break;
|
1204 |
case 0x03: |
1205 |
type = USBDEVFS_URB_TYPE_INTERRUPT; |
1206 |
break;
|
1207 |
default:
|
1208 |
DPRINTF("usb_host: malformed endpoint type\n");
|
1209 |
type = USBDEVFS_URB_TYPE_BULK; |
1210 |
} |
1211 |
s->endp_table[(devep & 0xf) - 1].type = type; |
1212 |
s->endp_table[(devep & 0xf) - 1].halted = 0; |
1213 |
|
1214 |
i += descriptors[i]; |
1215 |
} |
1216 |
} |
1217 |
return 0; |
1218 |
} |
1219 |
|
1220 |
static int usb_host_open(USBHostDevice *dev, int bus_num, |
1221 |
int addr, int devpath, const char *prod_name) |
1222 |
{ |
1223 |
int fd = -1, ret; |
1224 |
struct usbdevfs_connectinfo ci;
|
1225 |
char buf[1024]; |
1226 |
|
1227 |
if (dev->fd != -1) { |
1228 |
goto fail;
|
1229 |
} |
1230 |
printf("husb: open device %d.%d\n", bus_num, addr);
|
1231 |
|
1232 |
if (!usb_host_device_path) {
|
1233 |
perror("husb: USB Host Device Path not set");
|
1234 |
goto fail;
|
1235 |
} |
1236 |
snprintf(buf, sizeof(buf), "%s/%03d/%03d", usb_host_device_path, |
1237 |
bus_num, addr); |
1238 |
fd = open(buf, O_RDWR | O_NONBLOCK); |
1239 |
if (fd < 0) { |
1240 |
perror(buf); |
1241 |
goto fail;
|
1242 |
} |
1243 |
DPRINTF("husb: opened %s\n", buf);
|
1244 |
|
1245 |
dev->bus_num = bus_num; |
1246 |
dev->addr = addr; |
1247 |
dev->devpath = devpath; |
1248 |
dev->fd = fd; |
1249 |
|
1250 |
/* read the device description */
|
1251 |
dev->descr_len = read(fd, dev->descr, sizeof(dev->descr));
|
1252 |
if (dev->descr_len <= 0) { |
1253 |
perror("husb: reading device data failed");
|
1254 |
goto fail;
|
1255 |
} |
1256 |
|
1257 |
#ifdef DEBUG
|
1258 |
{ |
1259 |
int x;
|
1260 |
printf("=== begin dumping device descriptor data ===\n");
|
1261 |
for (x = 0; x < dev->descr_len; x++) { |
1262 |
printf("%02x ", dev->descr[x]);
|
1263 |
} |
1264 |
printf("\n=== end dumping device descriptor data ===\n");
|
1265 |
} |
1266 |
#endif
|
1267 |
|
1268 |
|
1269 |
/*
|
1270 |
* Initial configuration is -1 which makes us claim first
|
1271 |
* available config. We used to start with 1, which does not
|
1272 |
* always work. I've seen devices where first config starts
|
1273 |
* with 2.
|
1274 |
*/
|
1275 |
if (!usb_host_claim_interfaces(dev, -1)) { |
1276 |
goto fail;
|
1277 |
} |
1278 |
|
1279 |
ret = ioctl(fd, USBDEVFS_CONNECTINFO, &ci); |
1280 |
if (ret < 0) { |
1281 |
perror("usb_host_device_open: USBDEVFS_CONNECTINFO");
|
1282 |
goto fail;
|
1283 |
} |
1284 |
|
1285 |
printf("husb: grabbed usb device %d.%d\n", bus_num, addr);
|
1286 |
|
1287 |
ret = usb_linux_update_endp_table(dev); |
1288 |
if (ret) {
|
1289 |
goto fail;
|
1290 |
} |
1291 |
|
1292 |
if (ci.slow) {
|
1293 |
dev->dev.speed = USB_SPEED_LOW; |
1294 |
} else {
|
1295 |
dev->dev.speed = USB_SPEED_HIGH; |
1296 |
} |
1297 |
|
1298 |
if (!prod_name || prod_name[0] == '\0') { |
1299 |
snprintf(dev->dev.product_desc, sizeof(dev->dev.product_desc),
|
1300 |
"host:%d.%d", bus_num, addr);
|
1301 |
} else {
|
1302 |
pstrcpy(dev->dev.product_desc, sizeof(dev->dev.product_desc),
|
1303 |
prod_name); |
1304 |
} |
1305 |
|
1306 |
/* USB devio uses 'write' flag to check for async completions */
|
1307 |
qemu_set_fd_handler(dev->fd, NULL, async_complete, dev);
|
1308 |
|
1309 |
usb_device_attach(&dev->dev); |
1310 |
return 0; |
1311 |
|
1312 |
fail:
|
1313 |
dev->fd = -1;
|
1314 |
if (fd != -1) { |
1315 |
close(fd); |
1316 |
} |
1317 |
return -1; |
1318 |
} |
1319 |
|
1320 |
static int usb_host_close(USBHostDevice *dev) |
1321 |
{ |
1322 |
int i;
|
1323 |
|
1324 |
if (dev->fd == -1) { |
1325 |
return -1; |
1326 |
} |
1327 |
|
1328 |
qemu_set_fd_handler(dev->fd, NULL, NULL, NULL); |
1329 |
dev->closing = 1;
|
1330 |
for (i = 1; i <= MAX_ENDPOINTS; i++) { |
1331 |
if (is_isoc(dev, i)) {
|
1332 |
usb_host_stop_n_free_iso(dev, i); |
1333 |
} |
1334 |
} |
1335 |
async_complete(dev); |
1336 |
dev->closing = 0;
|
1337 |
usb_device_detach(&dev->dev); |
1338 |
ioctl(dev->fd, USBDEVFS_RESET); |
1339 |
close(dev->fd); |
1340 |
dev->fd = -1;
|
1341 |
return 0; |
1342 |
} |
1343 |
|
1344 |
static void usb_host_exit_notifier(struct Notifier* n) |
1345 |
{ |
1346 |
USBHostDevice *s = container_of(n, USBHostDevice, exit); |
1347 |
|
1348 |
if (s->fd != -1) { |
1349 |
ioctl(s->fd, USBDEVFS_RESET); |
1350 |
} |
1351 |
} |
1352 |
|
1353 |
static int usb_host_initfn(USBDevice *dev) |
1354 |
{ |
1355 |
USBHostDevice *s = DO_UPCAST(USBHostDevice, dev, dev); |
1356 |
|
1357 |
dev->auto_attach = 0;
|
1358 |
s->fd = -1;
|
1359 |
QTAILQ_INSERT_TAIL(&hostdevs, s, next); |
1360 |
s->exit.notify = usb_host_exit_notifier; |
1361 |
qemu_add_exit_notifier(&s->exit); |
1362 |
usb_host_auto_check(NULL);
|
1363 |
return 0; |
1364 |
} |
1365 |
|
1366 |
static struct USBDeviceInfo usb_host_dev_info = { |
1367 |
.product_desc = "USB Host Device",
|
1368 |
.qdev.name = "usb-host",
|
1369 |
.qdev.size = sizeof(USBHostDevice),
|
1370 |
.init = usb_host_initfn, |
1371 |
.handle_packet = usb_host_handle_packet, |
1372 |
.handle_reset = usb_host_handle_reset, |
1373 |
.handle_destroy = usb_host_handle_destroy, |
1374 |
.usbdevice_name = "host",
|
1375 |
.usbdevice_init = usb_host_device_open, |
1376 |
.qdev.props = (Property[]) { |
1377 |
DEFINE_PROP_UINT32("hostbus", USBHostDevice, match.bus_num, 0), |
1378 |
DEFINE_PROP_UINT32("hostaddr", USBHostDevice, match.addr, 0), |
1379 |
DEFINE_PROP_HEX32("vendorid", USBHostDevice, match.vendor_id, 0), |
1380 |
DEFINE_PROP_HEX32("productid", USBHostDevice, match.product_id, 0), |
1381 |
DEFINE_PROP_END_OF_LIST(), |
1382 |
}, |
1383 |
}; |
1384 |
|
1385 |
static void usb_host_register_devices(void) |
1386 |
{ |
1387 |
usb_qdev_register(&usb_host_dev_info); |
1388 |
} |
1389 |
device_init(usb_host_register_devices) |
1390 |
|
1391 |
USBDevice *usb_host_device_open(const char *devname) |
1392 |
{ |
1393 |
struct USBAutoFilter filter;
|
1394 |
USBDevice *dev; |
1395 |
char *p;
|
1396 |
|
1397 |
dev = usb_create(NULL /* FIXME */, "usb-host"); |
1398 |
|
1399 |
if (strstr(devname, "auto:")) { |
1400 |
if (parse_filter(devname, &filter) < 0) { |
1401 |
goto fail;
|
1402 |
} |
1403 |
} else {
|
1404 |
if ((p = strchr(devname, '.'))) { |
1405 |
filter.bus_num = strtoul(devname, NULL, 0); |
1406 |
filter.addr = strtoul(p + 1, NULL, 0); |
1407 |
filter.vendor_id = 0;
|
1408 |
filter.product_id = 0;
|
1409 |
} else if ((p = strchr(devname, ':'))) { |
1410 |
filter.bus_num = 0;
|
1411 |
filter.addr = 0;
|
1412 |
filter.vendor_id = strtoul(devname, NULL, 16); |
1413 |
filter.product_id = strtoul(p + 1, NULL, 16); |
1414 |
} else {
|
1415 |
goto fail;
|
1416 |
} |
1417 |
} |
1418 |
|
1419 |
qdev_prop_set_uint32(&dev->qdev, "hostbus", filter.bus_num);
|
1420 |
qdev_prop_set_uint32(&dev->qdev, "hostaddr", filter.addr);
|
1421 |
qdev_prop_set_uint32(&dev->qdev, "vendorid", filter.vendor_id);
|
1422 |
qdev_prop_set_uint32(&dev->qdev, "productid", filter.product_id);
|
1423 |
qdev_init_nofail(&dev->qdev); |
1424 |
return dev;
|
1425 |
|
1426 |
fail:
|
1427 |
qdev_free(&dev->qdev); |
1428 |
return NULL; |
1429 |
} |
1430 |
|
1431 |
int usb_host_device_close(const char *devname) |
1432 |
{ |
1433 |
#if 0
|
1434 |
char product_name[PRODUCT_NAME_SZ];
|
1435 |
int bus_num, addr;
|
1436 |
USBHostDevice *s;
|
1437 |
|
1438 |
if (strstr(devname, "auto:")) {
|
1439 |
return usb_host_auto_del(devname);
|
1440 |
}
|
1441 |
if (usb_host_find_device(&bus_num, &addr, product_name,
|
1442 |
sizeof(product_name), devname) < 0) {
|
1443 |
return -1;
|
1444 |
}
|
1445 |
s = hostdev_find(bus_num, addr);
|
1446 |
if (s) {
|
1447 |
usb_device_delete_addr(s->bus_num, s->dev.addr);
|
1448 |
return 0;
|
1449 |
}
|
1450 |
#endif
|
1451 |
|
1452 |
return -1; |
1453 |
} |
1454 |
|
1455 |
static int get_tag_value(char *buf, int buf_size, |
1456 |
const char *str, const char *tag, |
1457 |
const char *stopchars) |
1458 |
{ |
1459 |
const char *p; |
1460 |
char *q;
|
1461 |
p = strstr(str, tag); |
1462 |
if (!p) {
|
1463 |
return -1; |
1464 |
} |
1465 |
p += strlen(tag); |
1466 |
while (qemu_isspace(*p)) {
|
1467 |
p++; |
1468 |
} |
1469 |
q = buf; |
1470 |
while (*p != '\0' && !strchr(stopchars, *p)) { |
1471 |
if ((q - buf) < (buf_size - 1)) { |
1472 |
*q++ = *p; |
1473 |
} |
1474 |
p++; |
1475 |
} |
1476 |
*q = '\0';
|
1477 |
return q - buf;
|
1478 |
} |
1479 |
|
1480 |
/*
|
1481 |
* Use /proc/bus/usb/devices or /dev/bus/usb/devices file to determine
|
1482 |
* host's USB devices. This is legacy support since many distributions
|
1483 |
* are moving to /sys/bus/usb
|
1484 |
*/
|
1485 |
static int usb_host_scan_dev(void *opaque, USBScanFunc *func) |
1486 |
{ |
1487 |
FILE *f = NULL;
|
1488 |
char line[1024]; |
1489 |
char buf[1024]; |
1490 |
int bus_num, addr, speed, device_count, class_id, product_id, vendor_id;
|
1491 |
char product_name[512]; |
1492 |
int ret = 0; |
1493 |
|
1494 |
if (!usb_host_device_path) {
|
1495 |
perror("husb: USB Host Device Path not set");
|
1496 |
goto the_end;
|
1497 |
} |
1498 |
snprintf(line, sizeof(line), "%s/devices", usb_host_device_path); |
1499 |
f = fopen(line, "r");
|
1500 |
if (!f) {
|
1501 |
perror("husb: cannot open devices file");
|
1502 |
goto the_end;
|
1503 |
} |
1504 |
|
1505 |
device_count = 0;
|
1506 |
bus_num = addr = speed = class_id = product_id = vendor_id = 0;
|
1507 |
for(;;) {
|
1508 |
if (fgets(line, sizeof(line), f) == NULL) { |
1509 |
break;
|
1510 |
} |
1511 |
if (strlen(line) > 0) { |
1512 |
line[strlen(line) - 1] = '\0'; |
1513 |
} |
1514 |
if (line[0] == 'T' && line[1] == ':') { |
1515 |
if (device_count && (vendor_id || product_id)) {
|
1516 |
/* New device. Add the previously discovered device. */
|
1517 |
ret = func(opaque, bus_num, addr, 0, class_id, vendor_id,
|
1518 |
product_id, product_name, speed); |
1519 |
if (ret) {
|
1520 |
goto the_end;
|
1521 |
} |
1522 |
} |
1523 |
if (get_tag_value(buf, sizeof(buf), line, "Bus=", " ") < 0) { |
1524 |
goto fail;
|
1525 |
} |
1526 |
bus_num = atoi(buf); |
1527 |
if (get_tag_value(buf, sizeof(buf), line, "Dev#=", " ") < 0) { |
1528 |
goto fail;
|
1529 |
} |
1530 |
addr = atoi(buf); |
1531 |
if (get_tag_value(buf, sizeof(buf), line, "Spd=", " ") < 0) { |
1532 |
goto fail;
|
1533 |
} |
1534 |
if (!strcmp(buf, "480")) { |
1535 |
speed = USB_SPEED_HIGH; |
1536 |
} else if (!strcmp(buf, "1.5")) { |
1537 |
speed = USB_SPEED_LOW; |
1538 |
} else {
|
1539 |
speed = USB_SPEED_FULL; |
1540 |
} |
1541 |
product_name[0] = '\0'; |
1542 |
class_id = 0xff;
|
1543 |
device_count++; |
1544 |
product_id = 0;
|
1545 |
vendor_id = 0;
|
1546 |
} else if (line[0] == 'P' && line[1] == ':') { |
1547 |
if (get_tag_value(buf, sizeof(buf), line, "Vendor=", " ") < 0) { |
1548 |
goto fail;
|
1549 |
} |
1550 |
vendor_id = strtoul(buf, NULL, 16); |
1551 |
if (get_tag_value(buf, sizeof(buf), line, "ProdID=", " ") < 0) { |
1552 |
goto fail;
|
1553 |
} |
1554 |
product_id = strtoul(buf, NULL, 16); |
1555 |
} else if (line[0] == 'S' && line[1] == ':') { |
1556 |
if (get_tag_value(buf, sizeof(buf), line, "Product=", "") < 0) { |
1557 |
goto fail;
|
1558 |
} |
1559 |
pstrcpy(product_name, sizeof(product_name), buf);
|
1560 |
} else if (line[0] == 'D' && line[1] == ':') { |
1561 |
if (get_tag_value(buf, sizeof(buf), line, "Cls=", " (") < 0) { |
1562 |
goto fail;
|
1563 |
} |
1564 |
class_id = strtoul(buf, NULL, 16); |
1565 |
} |
1566 |
fail: ;
|
1567 |
} |
1568 |
if (device_count && (vendor_id || product_id)) {
|
1569 |
/* Add the last device. */
|
1570 |
ret = func(opaque, bus_num, addr, 0, class_id, vendor_id,
|
1571 |
product_id, product_name, speed); |
1572 |
} |
1573 |
the_end:
|
1574 |
if (f) {
|
1575 |
fclose(f); |
1576 |
} |
1577 |
return ret;
|
1578 |
} |
1579 |
|
1580 |
/*
|
1581 |
* Read sys file-system device file
|
1582 |
*
|
1583 |
* @line address of buffer to put file contents in
|
1584 |
* @line_size size of line
|
1585 |
* @device_file path to device file (printf format string)
|
1586 |
* @device_name device being opened (inserted into device_file)
|
1587 |
*
|
1588 |
* @return 0 failed, 1 succeeded ('line' contains data)
|
1589 |
*/
|
1590 |
static int usb_host_read_file(char *line, size_t line_size, |
1591 |
const char *device_file, const char *device_name) |
1592 |
{ |
1593 |
FILE *f; |
1594 |
int ret = 0; |
1595 |
char filename[PATH_MAX];
|
1596 |
|
1597 |
snprintf(filename, PATH_MAX, USBSYSBUS_PATH "/devices/%s/%s", device_name,
|
1598 |
device_file); |
1599 |
f = fopen(filename, "r");
|
1600 |
if (f) {
|
1601 |
ret = fgets(line, line_size, f) != NULL;
|
1602 |
fclose(f); |
1603 |
} |
1604 |
|
1605 |
return ret;
|
1606 |
} |
1607 |
|
1608 |
/*
|
1609 |
* Use /sys/bus/usb/devices/ directory to determine host's USB
|
1610 |
* devices.
|
1611 |
*
|
1612 |
* This code is based on Robert Schiele's original patches posted to
|
1613 |
* the Novell bug-tracker https://bugzilla.novell.com/show_bug.cgi?id=241950
|
1614 |
*/
|
1615 |
static int usb_host_scan_sys(void *opaque, USBScanFunc *func) |
1616 |
{ |
1617 |
DIR *dir = NULL;
|
1618 |
char line[1024]; |
1619 |
int bus_num, addr, devpath, speed, class_id, product_id, vendor_id;
|
1620 |
int ret = 0; |
1621 |
char product_name[512]; |
1622 |
struct dirent *de;
|
1623 |
|
1624 |
dir = opendir(USBSYSBUS_PATH "/devices");
|
1625 |
if (!dir) {
|
1626 |
perror("husb: cannot open devices directory");
|
1627 |
goto the_end;
|
1628 |
} |
1629 |
|
1630 |
while ((de = readdir(dir))) {
|
1631 |
if (de->d_name[0] != '.' && !strchr(de->d_name, ':')) { |
1632 |
char *tmpstr = de->d_name;
|
1633 |
if (!strncmp(de->d_name, "usb", 3)) { |
1634 |
tmpstr += 3;
|
1635 |
} |
1636 |
if (sscanf(tmpstr, "%d-%d", &bus_num, &devpath) < 1) { |
1637 |
goto the_end;
|
1638 |
} |
1639 |
|
1640 |
if (!usb_host_read_file(line, sizeof(line), "devnum", de->d_name)) { |
1641 |
goto the_end;
|
1642 |
} |
1643 |
if (sscanf(line, "%d", &addr) != 1) { |
1644 |
goto the_end;
|
1645 |
} |
1646 |
if (!usb_host_read_file(line, sizeof(line), "bDeviceClass", |
1647 |
de->d_name)) { |
1648 |
goto the_end;
|
1649 |
} |
1650 |
if (sscanf(line, "%x", &class_id) != 1) { |
1651 |
goto the_end;
|
1652 |
} |
1653 |
|
1654 |
if (!usb_host_read_file(line, sizeof(line), "idVendor", |
1655 |
de->d_name)) { |
1656 |
goto the_end;
|
1657 |
} |
1658 |
if (sscanf(line, "%x", &vendor_id) != 1) { |
1659 |
goto the_end;
|
1660 |
} |
1661 |
if (!usb_host_read_file(line, sizeof(line), "idProduct", |
1662 |
de->d_name)) { |
1663 |
goto the_end;
|
1664 |
} |
1665 |
if (sscanf(line, "%x", &product_id) != 1) { |
1666 |
goto the_end;
|
1667 |
} |
1668 |
if (!usb_host_read_file(line, sizeof(line), "product", |
1669 |
de->d_name)) { |
1670 |
*product_name = 0;
|
1671 |
} else {
|
1672 |
if (strlen(line) > 0) { |
1673 |
line[strlen(line) - 1] = '\0'; |
1674 |
} |
1675 |
pstrcpy(product_name, sizeof(product_name), line);
|
1676 |
} |
1677 |
|
1678 |
if (!usb_host_read_file(line, sizeof(line), "speed", de->d_name)) { |
1679 |
goto the_end;
|
1680 |
} |
1681 |
if (!strcmp(line, "480\n")) { |
1682 |
speed = USB_SPEED_HIGH; |
1683 |
} else if (!strcmp(line, "1.5\n")) { |
1684 |
speed = USB_SPEED_LOW; |
1685 |
} else {
|
1686 |
speed = USB_SPEED_FULL; |
1687 |
} |
1688 |
|
1689 |
ret = func(opaque, bus_num, addr, devpath, class_id, vendor_id, |
1690 |
product_id, product_name, speed); |
1691 |
if (ret) {
|
1692 |
goto the_end;
|
1693 |
} |
1694 |
} |
1695 |
} |
1696 |
the_end:
|
1697 |
if (dir) {
|
1698 |
closedir(dir); |
1699 |
} |
1700 |
return ret;
|
1701 |
} |
1702 |
|
1703 |
/*
|
1704 |
* Determine how to access the host's USB devices and call the
|
1705 |
* specific support function.
|
1706 |
*/
|
1707 |
static int usb_host_scan(void *opaque, USBScanFunc *func) |
1708 |
{ |
1709 |
Monitor *mon = cur_mon; |
1710 |
FILE *f = NULL;
|
1711 |
DIR *dir = NULL;
|
1712 |
int ret = 0; |
1713 |
const char *fs_type[] = {"unknown", "proc", "dev", "sys"}; |
1714 |
char devpath[PATH_MAX];
|
1715 |
|
1716 |
/* only check the host once */
|
1717 |
if (!usb_fs_type) {
|
1718 |
dir = opendir(USBSYSBUS_PATH "/devices");
|
1719 |
if (dir) {
|
1720 |
/* devices found in /dev/bus/usb/ (yes - not a mistake!) */
|
1721 |
strcpy(devpath, USBDEVBUS_PATH); |
1722 |
usb_fs_type = USB_FS_SYS; |
1723 |
closedir(dir); |
1724 |
DPRINTF(USBDBG_DEVOPENED, USBSYSBUS_PATH); |
1725 |
goto found_devices;
|
1726 |
} |
1727 |
f = fopen(USBPROCBUS_PATH "/devices", "r"); |
1728 |
if (f) {
|
1729 |
/* devices found in /proc/bus/usb/ */
|
1730 |
strcpy(devpath, USBPROCBUS_PATH); |
1731 |
usb_fs_type = USB_FS_PROC; |
1732 |
fclose(f); |
1733 |
DPRINTF(USBDBG_DEVOPENED, USBPROCBUS_PATH); |
1734 |
goto found_devices;
|
1735 |
} |
1736 |
/* try additional methods if an access method hasn't been found yet */
|
1737 |
f = fopen(USBDEVBUS_PATH "/devices", "r"); |
1738 |
if (f) {
|
1739 |
/* devices found in /dev/bus/usb/ */
|
1740 |
strcpy(devpath, USBDEVBUS_PATH); |
1741 |
usb_fs_type = USB_FS_DEV; |
1742 |
fclose(f); |
1743 |
DPRINTF(USBDBG_DEVOPENED, USBDEVBUS_PATH); |
1744 |
goto found_devices;
|
1745 |
} |
1746 |
found_devices:
|
1747 |
if (!usb_fs_type) {
|
1748 |
if (mon) {
|
1749 |
monitor_printf(mon, "husb: unable to access USB devices\n");
|
1750 |
} |
1751 |
return -ENOENT;
|
1752 |
} |
1753 |
|
1754 |
/* the module setting (used later for opening devices) */
|
1755 |
usb_host_device_path = qemu_mallocz(strlen(devpath)+1);
|
1756 |
strcpy(usb_host_device_path, devpath); |
1757 |
if (mon) {
|
1758 |
monitor_printf(mon, "husb: using %s file-system with %s\n",
|
1759 |
fs_type[usb_fs_type], usb_host_device_path); |
1760 |
} |
1761 |
} |
1762 |
|
1763 |
switch (usb_fs_type) {
|
1764 |
case USB_FS_PROC:
|
1765 |
case USB_FS_DEV:
|
1766 |
ret = usb_host_scan_dev(opaque, func); |
1767 |
break;
|
1768 |
case USB_FS_SYS:
|
1769 |
ret = usb_host_scan_sys(opaque, func); |
1770 |
break;
|
1771 |
default:
|
1772 |
ret = -EINVAL; |
1773 |
break;
|
1774 |
} |
1775 |
return ret;
|
1776 |
} |
1777 |
|
1778 |
static QEMUTimer *usb_auto_timer;
|
1779 |
|
1780 |
static int usb_host_auto_scan(void *opaque, int bus_num, int addr, int devpath, |
1781 |
int class_id, int vendor_id, int product_id, |
1782 |
const char *product_name, int speed) |
1783 |
{ |
1784 |
struct USBAutoFilter *f;
|
1785 |
struct USBHostDevice *s;
|
1786 |
|
1787 |
/* Ignore hubs */
|
1788 |
if (class_id == 9) |
1789 |
return 0; |
1790 |
|
1791 |
QTAILQ_FOREACH(s, &hostdevs, next) { |
1792 |
f = &s->match; |
1793 |
|
1794 |
if (f->bus_num > 0 && f->bus_num != bus_num) { |
1795 |
continue;
|
1796 |
} |
1797 |
if (f->addr > 0 && f->addr != addr) { |
1798 |
continue;
|
1799 |
} |
1800 |
|
1801 |
if (f->vendor_id > 0 && f->vendor_id != vendor_id) { |
1802 |
continue;
|
1803 |
} |
1804 |
|
1805 |
if (f->product_id > 0 && f->product_id != product_id) { |
1806 |
continue;
|
1807 |
} |
1808 |
/* We got a match */
|
1809 |
|
1810 |
/* Already attached ? */
|
1811 |
if (s->fd != -1) { |
1812 |
return 0; |
1813 |
} |
1814 |
DPRINTF("husb: auto open: bus_num %d addr %d\n", bus_num, addr);
|
1815 |
|
1816 |
usb_host_open(s, bus_num, addr, devpath, product_name); |
1817 |
} |
1818 |
|
1819 |
return 0; |
1820 |
} |
1821 |
|
1822 |
static void usb_host_auto_check(void *unused) |
1823 |
{ |
1824 |
struct USBHostDevice *s;
|
1825 |
int unconnected = 0; |
1826 |
|
1827 |
usb_host_scan(NULL, usb_host_auto_scan);
|
1828 |
|
1829 |
QTAILQ_FOREACH(s, &hostdevs, next) { |
1830 |
if (s->fd == -1) { |
1831 |
unconnected++; |
1832 |
} |
1833 |
} |
1834 |
|
1835 |
if (unconnected == 0) { |
1836 |
/* nothing to watch */
|
1837 |
if (usb_auto_timer) {
|
1838 |
qemu_del_timer(usb_auto_timer); |
1839 |
} |
1840 |
return;
|
1841 |
} |
1842 |
|
1843 |
if (!usb_auto_timer) {
|
1844 |
usb_auto_timer = qemu_new_timer_ms(rt_clock, usb_host_auto_check, NULL);
|
1845 |
if (!usb_auto_timer) {
|
1846 |
return;
|
1847 |
} |
1848 |
} |
1849 |
qemu_mod_timer(usb_auto_timer, qemu_get_clock_ms(rt_clock) + 2000);
|
1850 |
} |
1851 |
|
1852 |
/*
|
1853 |
* Autoconnect filter
|
1854 |
* Format:
|
1855 |
* auto:bus:dev[:vid:pid]
|
1856 |
* auto:bus.dev[:vid:pid]
|
1857 |
*
|
1858 |
* bus - bus number (dec, * means any)
|
1859 |
* dev - device number (dec, * means any)
|
1860 |
* vid - vendor id (hex, * means any)
|
1861 |
* pid - product id (hex, * means any)
|
1862 |
*
|
1863 |
* See 'lsusb' output.
|
1864 |
*/
|
1865 |
static int parse_filter(const char *spec, struct USBAutoFilter *f) |
1866 |
{ |
1867 |
enum { BUS, DEV, VID, PID, DONE };
|
1868 |
const char *p = spec; |
1869 |
int i;
|
1870 |
|
1871 |
f->bus_num = 0;
|
1872 |
f->addr = 0;
|
1873 |
f->vendor_id = 0;
|
1874 |
f->product_id = 0;
|
1875 |
|
1876 |
for (i = BUS; i < DONE; i++) {
|
1877 |
p = strpbrk(p, ":.");
|
1878 |
if (!p) {
|
1879 |
break;
|
1880 |
} |
1881 |
p++; |
1882 |
|
1883 |
if (*p == '*') { |
1884 |
continue;
|
1885 |
} |
1886 |
switch(i) {
|
1887 |
case BUS: f->bus_num = strtol(p, NULL, 10); break; |
1888 |
case DEV: f->addr = strtol(p, NULL, 10); break; |
1889 |
case VID: f->vendor_id = strtol(p, NULL, 16); break; |
1890 |
case PID: f->product_id = strtol(p, NULL, 16); break; |
1891 |
} |
1892 |
} |
1893 |
|
1894 |
if (i < DEV) {
|
1895 |
fprintf(stderr, "husb: invalid auto filter spec %s\n", spec);
|
1896 |
return -1; |
1897 |
} |
1898 |
|
1899 |
return 0; |
1900 |
} |
1901 |
|
1902 |
/**********************/
|
1903 |
/* USB host device info */
|
1904 |
|
1905 |
struct usb_class_info {
|
1906 |
int class;
|
1907 |
const char *class_name; |
1908 |
}; |
1909 |
|
1910 |
static const struct usb_class_info usb_class_info[] = { |
1911 |
{ USB_CLASS_AUDIO, "Audio"},
|
1912 |
{ USB_CLASS_COMM, "Communication"},
|
1913 |
{ USB_CLASS_HID, "HID"},
|
1914 |
{ USB_CLASS_HUB, "Hub" },
|
1915 |
{ USB_CLASS_PHYSICAL, "Physical" },
|
1916 |
{ USB_CLASS_PRINTER, "Printer" },
|
1917 |
{ USB_CLASS_MASS_STORAGE, "Storage" },
|
1918 |
{ USB_CLASS_CDC_DATA, "Data" },
|
1919 |
{ USB_CLASS_APP_SPEC, "Application Specific" },
|
1920 |
{ USB_CLASS_VENDOR_SPEC, "Vendor Specific" },
|
1921 |
{ USB_CLASS_STILL_IMAGE, "Still Image" },
|
1922 |
{ USB_CLASS_CSCID, "Smart Card" },
|
1923 |
{ USB_CLASS_CONTENT_SEC, "Content Security" },
|
1924 |
{ -1, NULL } |
1925 |
}; |
1926 |
|
1927 |
static const char *usb_class_str(uint8_t class) |
1928 |
{ |
1929 |
const struct usb_class_info *p; |
1930 |
for(p = usb_class_info; p->class != -1; p++) { |
1931 |
if (p->class == class) {
|
1932 |
break;
|
1933 |
} |
1934 |
} |
1935 |
return p->class_name;
|
1936 |
} |
1937 |
|
1938 |
static void usb_info_device(Monitor *mon, int bus_num, int addr, int class_id, |
1939 |
int vendor_id, int product_id, |
1940 |
const char *product_name, |
1941 |
int speed)
|
1942 |
{ |
1943 |
const char *class_str, *speed_str; |
1944 |
|
1945 |
switch(speed) {
|
1946 |
case USB_SPEED_LOW:
|
1947 |
speed_str = "1.5";
|
1948 |
break;
|
1949 |
case USB_SPEED_FULL:
|
1950 |
speed_str = "12";
|
1951 |
break;
|
1952 |
case USB_SPEED_HIGH:
|
1953 |
speed_str = "480";
|
1954 |
break;
|
1955 |
default:
|
1956 |
speed_str = "?";
|
1957 |
break;
|
1958 |
} |
1959 |
|
1960 |
monitor_printf(mon, " Device %d.%d, speed %s Mb/s\n",
|
1961 |
bus_num, addr, speed_str); |
1962 |
class_str = usb_class_str(class_id); |
1963 |
if (class_str) {
|
1964 |
monitor_printf(mon, " %s:", class_str);
|
1965 |
} else {
|
1966 |
monitor_printf(mon, " Class %02x:", class_id);
|
1967 |
} |
1968 |
monitor_printf(mon, " USB device %04x:%04x", vendor_id, product_id);
|
1969 |
if (product_name[0] != '\0') { |
1970 |
monitor_printf(mon, ", %s", product_name);
|
1971 |
} |
1972 |
monitor_printf(mon, "\n");
|
1973 |
} |
1974 |
|
1975 |
static int usb_host_info_device(void *opaque, int bus_num, int addr, |
1976 |
int devpath, int class_id, |
1977 |
int vendor_id, int product_id, |
1978 |
const char *product_name, |
1979 |
int speed)
|
1980 |
{ |
1981 |
Monitor *mon = opaque; |
1982 |
|
1983 |
usb_info_device(mon, bus_num, addr, class_id, vendor_id, product_id, |
1984 |
product_name, speed); |
1985 |
return 0; |
1986 |
} |
1987 |
|
1988 |
static void dec2str(int val, char *str, size_t size) |
1989 |
{ |
1990 |
if (val == 0) { |
1991 |
snprintf(str, size, "*");
|
1992 |
} else {
|
1993 |
snprintf(str, size, "%d", val);
|
1994 |
} |
1995 |
} |
1996 |
|
1997 |
static void hex2str(int val, char *str, size_t size) |
1998 |
{ |
1999 |
if (val == 0) { |
2000 |
snprintf(str, size, "*");
|
2001 |
} else {
|
2002 |
snprintf(str, size, "%04x", val);
|
2003 |
} |
2004 |
} |
2005 |
|
2006 |
void usb_host_info(Monitor *mon)
|
2007 |
{ |
2008 |
struct USBAutoFilter *f;
|
2009 |
struct USBHostDevice *s;
|
2010 |
|
2011 |
usb_host_scan(mon, usb_host_info_device); |
2012 |
|
2013 |
if (QTAILQ_EMPTY(&hostdevs)) {
|
2014 |
return;
|
2015 |
} |
2016 |
|
2017 |
monitor_printf(mon, " Auto filters:\n");
|
2018 |
QTAILQ_FOREACH(s, &hostdevs, next) { |
2019 |
char bus[10], addr[10], vid[10], pid[10]; |
2020 |
f = &s->match; |
2021 |
dec2str(f->bus_num, bus, sizeof(bus));
|
2022 |
dec2str(f->addr, addr, sizeof(addr));
|
2023 |
hex2str(f->vendor_id, vid, sizeof(vid));
|
2024 |
hex2str(f->product_id, pid, sizeof(pid));
|
2025 |
monitor_printf(mon, " Device %s.%s ID %s:%s\n",
|
2026 |
bus, addr, vid, pid); |
2027 |
} |
2028 |
} |