Revision 446ab128
| b/usb-linux.c | ||
|---|---|---|
| 25 | 25 |
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| 26 | 26 |
* THE SOFTWARE. |
| 27 | 27 |
*/ |
| 28 |
|
|
| 28 | 29 |
#include "qemu-common.h" |
| 29 | 30 |
#include "qemu-timer.h" |
| 30 |
#include "hw/usb.h" |
|
| 31 | 31 |
#include "console.h" |
| 32 | 32 |
|
| 33 | 33 |
#if defined(__linux__) |
| 34 | 34 |
#include <dirent.h> |
| 35 | 35 |
#include <sys/ioctl.h> |
| 36 |
#include <linux/usbdevice_fs.h> |
|
| 37 |
#include <linux/version.h> |
|
| 38 | 36 |
#include <signal.h> |
| 39 | 37 |
|
| 40 |
/* We redefine it to avoid version problems */ |
|
| 41 |
struct usb_ctrltransfer {
|
|
| 42 |
uint8_t bRequestType; |
|
| 43 |
uint8_t bRequest; |
|
| 44 |
uint16_t wValue; |
|
| 45 |
uint16_t wIndex; |
|
| 46 |
uint16_t wLength; |
|
| 47 |
uint32_t timeout; |
|
| 48 |
void *data; |
|
| 49 |
}; |
|
| 38 |
#include <linux/usb/ch9.h> |
|
| 39 |
#include <linux/usbdevice_fs.h> |
|
| 40 |
#include <linux/version.h> |
|
| 41 |
#include "hw/usb.h" |
|
| 50 | 42 |
|
| 51 | 43 |
typedef int USBScanFunc(void *opaque, int bus_num, int addr, int class_id, |
| 52 | 44 |
int vendor_id, int product_id, |
| ... | ... | |
| 54 | 46 |
static int usb_host_find_device(int *pbus_num, int *paddr, |
| 55 | 47 |
char *product_name, int product_name_size, |
| 56 | 48 |
const char *devname); |
| 57 |
|
|
| 58 | 49 |
//#define DEBUG |
| 59 | 50 |
|
| 60 | 51 |
#ifdef DEBUG |
| ... | ... | |
| 67 | 58 |
#define PRODUCT_NAME_SZ 32 |
| 68 | 59 |
#define MAX_ENDPOINTS 16 |
| 69 | 60 |
|
| 70 |
struct sigaction sigact; |
|
| 71 |
|
|
| 72 | 61 |
/* endpoint association data */ |
| 73 | 62 |
struct endp_data {
|
| 74 | 63 |
uint8_t type; |
| 75 | 64 |
uint8_t halted; |
| 76 | 65 |
}; |
| 77 | 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]; |
|
| 85 |
}; |
|
| 86 |
|
|
| 78 | 87 |
typedef struct USBHostDevice {
|
| 79 | 88 |
USBDevice dev; |
| 80 | 89 |
int fd; |
| ... | ... | |
| 82 | 91 |
uint8_t descr[1024]; |
| 83 | 92 |
int descr_len; |
| 84 | 93 |
int configuration; |
| 94 |
int ninterfaces; |
|
| 85 | 95 |
int closing; |
| 86 | 96 |
|
| 97 |
struct ctrl_struct ctrl; |
|
| 87 | 98 |
struct endp_data endp_table[MAX_ENDPOINTS]; |
| 88 | 99 |
|
| 89 | 100 |
/* Host side address */ |
| ... | ... | |
| 172 | 183 |
qemu_free(aurb); |
| 173 | 184 |
} |
| 174 | 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; |
|
| 194 |
break; |
|
| 195 |
|
|
| 196 |
case CTRL_STATE_ACK: |
|
| 197 |
s->ctrl.state = CTRL_STATE_IDLE; |
|
| 198 |
p->len = 0; |
|
| 199 |
break; |
|
| 200 |
|
|
| 201 |
default: |
|
| 202 |
break; |
|
| 203 |
} |
|
| 204 |
} |
|
| 205 |
|
|
| 175 | 206 |
static void async_complete(void *opaque) |
| 176 | 207 |
{
|
| 177 | 208 |
USBHostDevice *s = opaque; |
| ... | ... | |
| 204 | 235 |
switch (aurb->urb.status) {
|
| 205 | 236 |
case 0: |
| 206 | 237 |
p->len = aurb->urb.actual_length; |
| 238 |
if (aurb->urb.type == USBDEVFS_URB_TYPE_CONTROL) |
|
| 239 |
async_complete_ctrl(s, p); |
|
| 207 | 240 |
break; |
| 208 | 241 |
|
| 209 | 242 |
case -EPIPE: |
| ... | ... | |
| 237 | 270 |
} |
| 238 | 271 |
} |
| 239 | 272 |
|
| 240 |
static int usb_host_update_interfaces(USBHostDevice *dev, int configuration)
|
|
| 273 |
static int usb_host_claim_interfaces(USBHostDevice *dev, int configuration)
|
|
| 241 | 274 |
{
|
| 242 | 275 |
int dev_descr_len, config_descr_len; |
| 243 | 276 |
int interface, nb_interfaces, nb_configurations; |
| ... | ... | |
| 246 | 279 |
if (configuration == 0) /* address state - ignore */ |
| 247 | 280 |
return 1; |
| 248 | 281 |
|
| 282 |
dprintf("husb: claiming interfaces. config %d\n", configuration);
|
|
| 283 |
|
|
| 249 | 284 |
i = 0; |
| 250 | 285 |
dev_descr_len = dev->descr[0]; |
| 251 | 286 |
if (dev_descr_len > dev->descr_len) |
| ... | ... | |
| 265 | 300 |
|
| 266 | 301 |
printf("husb: config #%d need %d\n", dev->descr[i + 5], configuration);
|
| 267 | 302 |
|
| 268 |
if (configuration < 0 || configuration == dev->descr[i + 5]) |
|
| 303 |
if (configuration < 0 || configuration == dev->descr[i + 5]) {
|
|
| 304 |
configuration = dev->descr[i + 5]; |
|
| 269 | 305 |
break; |
| 306 |
} |
|
| 270 | 307 |
|
| 271 | 308 |
i += config_descr_len; |
| 272 | 309 |
} |
| ... | ... | |
| 310 | 347 |
printf("husb: %d interfaces claimed for configuration %d\n",
|
| 311 | 348 |
nb_interfaces, configuration); |
| 312 | 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 |
|
|
| 313 | 369 |
return 1; |
| 314 | 370 |
} |
| 315 | 371 |
|
| 316 | 372 |
static void usb_host_handle_reset(USBDevice *dev) |
| 317 | 373 |
{
|
| 318 |
USBHostDevice *s = (USBHostDevice *)dev; |
|
| 374 |
USBHostDevice *s = (USBHostDevice *) dev;
|
|
| 319 | 375 |
|
| 320 | 376 |
dprintf("husb: reset device %u.%u\n", s->bus_num, s->addr);
|
| 321 | 377 |
|
| 322 | 378 |
ioctl(s->fd, USBDEVFS_RESET); |
| 323 |
usb_host_update_interfaces(s, s->configuration); |
|
| 379 |
|
|
| 380 |
usb_host_claim_interfaces(s, s->configuration); |
|
| 324 | 381 |
} |
| 325 | 382 |
|
| 326 | 383 |
static void usb_host_handle_destroy(USBDevice *dev) |
| ... | ... | |
| 343 | 400 |
|
| 344 | 401 |
static int usb_linux_update_endp_table(USBHostDevice *s); |
| 345 | 402 |
|
| 346 |
static int usb_host_handle_control(USBDevice *dev, |
|
| 347 |
int request, |
|
| 348 |
int value, |
|
| 349 |
int index, |
|
| 350 |
int length, |
|
| 351 |
uint8_t *data) |
|
| 352 |
{
|
|
| 353 |
USBHostDevice *s = (USBHostDevice *)dev; |
|
| 354 |
struct usb_ctrltransfer ct; |
|
| 355 |
struct usbdevfs_setinterface si; |
|
| 356 |
int intf_update_required = 0; |
|
| 357 |
int ret; |
|
| 358 |
|
|
| 359 |
if (request == (DeviceOutRequest | USB_REQ_SET_ADDRESS)) {
|
|
| 360 |
/* specific SET_ADDRESS support */ |
|
| 361 |
dev->addr = value; |
|
| 362 |
return 0; |
|
| 363 |
} else if (request == ((USB_RECIP_INTERFACE << 8) | |
|
| 364 |
USB_REQ_SET_INTERFACE)) {
|
|
| 365 |
/* set alternate setting for the interface */ |
|
| 366 |
si.interface = index; |
|
| 367 |
si.altsetting = value; |
|
| 368 |
ret = ioctl(s->fd, USBDEVFS_SETINTERFACE, &si); |
|
| 369 |
usb_linux_update_endp_table(s); |
|
| 370 |
} else if (request == (DeviceOutRequest | USB_REQ_SET_CONFIGURATION)) {
|
|
| 371 |
dprintf("husb: ctrl set config %d\n", value & 0xff);
|
|
| 372 |
if (s->configuration != (value & 0xff)) {
|
|
| 373 |
s->configuration = (value & 0xff); |
|
| 374 |
intf_update_required = 1; |
|
| 375 |
} |
|
| 376 |
goto do_request; |
|
| 377 |
} else {
|
|
| 378 |
do_request: |
|
| 379 |
ct.bRequestType = request >> 8; |
|
| 380 |
ct.bRequest = request; |
|
| 381 |
ct.wValue = value; |
|
| 382 |
ct.wIndex = index; |
|
| 383 |
ct.wLength = length; |
|
| 384 |
ct.timeout = 50; |
|
| 385 |
ct.data = data; |
|
| 386 |
ret = ioctl(s->fd, USBDEVFS_CONTROL, &ct); |
|
| 387 |
|
|
| 388 |
dprintf("husb: ctrl req 0x%x val 0x%x index %u len %u ret %d\n",
|
|
| 389 |
ct.bRequest, ct.wValue, ct.wIndex, ct.wLength, ret); |
|
| 390 |
} |
|
| 391 |
|
|
| 392 |
if (ret < 0) {
|
|
| 393 |
switch(errno) {
|
|
| 394 |
case ETIMEDOUT: |
|
| 395 |
return USB_RET_NAK; |
|
| 396 |
default: |
|
| 397 |
return USB_RET_STALL; |
|
| 398 |
} |
|
| 399 |
} else {
|
|
| 400 |
if (intf_update_required) {
|
|
| 401 |
dprintf("husb: updating interfaces\n");
|
|
| 402 |
usb_host_update_interfaces(s, value & 0xff); |
|
| 403 |
} |
|
| 404 |
return ret; |
|
| 405 |
} |
|
| 406 |
} |
|
| 407 |
|
|
| 408 |
static int usb_host_handle_data(USBDevice *dev, USBPacket *p) |
|
| 403 |
static int usb_host_handle_data(USBHostDevice *s, USBPacket *p) |
|
| 409 | 404 |
{
|
| 410 |
USBHostDevice *s = (USBHostDevice *) dev; |
|
| 411 |
AsyncURB *aurb; |
|
| 412 | 405 |
struct usbdevfs_urb *urb; |
| 406 |
AsyncURB *aurb; |
|
| 413 | 407 |
int ret; |
| 414 | 408 |
|
| 415 | 409 |
aurb = async_alloc(); |
| ... | ... | |
| 474 | 468 |
return USB_RET_ASYNC; |
| 475 | 469 |
} |
| 476 | 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 |
|
|
| 477 | 751 |
/* returns 1 on problem encountered or 0 for success */ |
| 478 | 752 |
static int usb_linux_update_endp_table(USBHostDevice *s) |
| 479 | 753 |
{
|
| 480 | 754 |
uint8_t *descriptors; |
| 481 | 755 |
uint8_t devep, type, configuration, alt_interface; |
| 482 |
struct usb_ctrltransfer ct; |
|
| 756 |
struct usbdevfs_ctrltransfer ct;
|
|
| 483 | 757 |
int interface, ret, length, i; |
| 484 | 758 |
|
| 485 | 759 |
ct.bRequestType = USB_DIR_IN; |
| ... | ... | |
| 624 | 898 |
#endif |
| 625 | 899 |
|
| 626 | 900 |
dev->fd = fd; |
| 627 |
dev->configuration = 1; |
|
| 628 | 901 |
|
| 629 |
/* XXX - do something about initial configuration */ |
|
| 630 |
if (!usb_host_update_interfaces(dev, -1)) |
|
| 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)) |
|
| 631 | 909 |
goto fail; |
| 632 | 910 |
|
| 633 | 911 |
ret = ioctl(fd, USBDEVFS_CONNECTINFO, &ci); |
| ... | ... | |
| 646 | 924 |
dev->dev.speed = USB_SPEED_LOW; |
| 647 | 925 |
else |
| 648 | 926 |
dev->dev.speed = USB_SPEED_HIGH; |
| 649 |
dev->dev.handle_packet = usb_generic_handle_packet; |
|
| 650 | 927 |
|
| 651 |
dev->dev.handle_reset = usb_host_handle_reset; |
|
| 652 |
dev->dev.handle_control = usb_host_handle_control; |
|
| 653 |
dev->dev.handle_data = usb_host_handle_data; |
|
| 928 |
dev->dev.handle_packet = usb_host_handle_packet; |
|
| 929 |
dev->dev.handle_reset = usb_host_handle_reset; |
|
| 654 | 930 |
dev->dev.handle_destroy = usb_host_handle_destroy; |
| 655 | 931 |
|
| 656 | 932 |
if (!prod_name || prod_name[0] == '\0') |
| ... | ... | |
| 1055 | 1331 |
|
| 1056 | 1332 |
#else |
| 1057 | 1333 |
|
| 1334 |
#include "hw/usb.h" |
|
| 1335 |
|
|
| 1058 | 1336 |
void usb_host_info(void) |
| 1059 | 1337 |
{
|
| 1060 | 1338 |
term_printf("USB host devices not supported\n");
|
Also available in: Unified diff